JP2010286202A - Heat exchanger - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat exchanger exerting high heat transferring performance. <P>SOLUTION: This heat exchanger has a core section 102 constituted by stacking a plurality of metallic plate members 110, the core section 102 is divided into a first flow channel 180 in which a first fluid is circulated, and a second flow channel 190 in which a second fluid is circulated by the plurality of plate members 110, and heat is exchanged between the first fluid 180 and the second fluid 190 through the plate members 110. Metallic sintered bodies 120 sintered in a state of being vertically pressed to outer surfaces 114 at a first flow channel 180 side, of the plate members 110 are disposed on the outer surfaces 114. The sintered bodies 120 hold an adsorbing material adsorbing and desorbing the first fluid. The second flow channel 190 is divided into a plurality of flow channels by the plate members 110, and each of the divided second flow channels 190 is sealed over the whole periphery on a cross-section in the circulating direction of the second fluid by the plate members 110. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a heat exchanger that exchanges heat between a first fluid and a second fluid.

  Conventionally, the thing of patent document 1 is known as a heat exchanger which has an adsorbent. In the heat exchanger described in Patent Document 1, a plurality of heat medium pipes through which a heat exchange medium flows are inserted from an upper end side opening in a cylindrical casing and fixed inside the casing, and copper powder and an adsorbent Is filled from the upper end side opening of the casing into the periphery of the heat medium pipe inside the casing, and the copper powder and the adsorbent are pressed and cured from the upper opening of the casing with a pressurizing jig. . Thereafter, the copper powder is sintered, the sintered body of the copper powder and the outer peripheral surface of the heat medium tube are metallically bonded, and the adsorbent is fixed inside the sintered body.

JP 2008-107075 A

  However, since the copper powder and the adsorbent described in Patent Document 1 are pressed along the longitudinal direction of the heat medium tube from the opening at the upper end side of the casing by the pressurizing jig, the copper powder is used as the heat medium. Hard to cure in a state where it is sufficiently pressed against the outer peripheral surface of the tube. If the copper powder is not hardened in a state of being sufficiently pressed against the outer peripheral surface of the heat medium tube, the sintered body of the copper powder and the outer peripheral surface of the heat medium tube cannot be strongly bonded metallicly, There is a problem that the heat transfer performance is deteriorated between the bonded body and the outer peripheral surface of the heat medium pipe.

  In view of the above problems, an object of the present invention is to provide a heat exchanger that exhibits high heat transfer performance.

  In order to achieve the above object, the present invention employs the following technical means.

  The invention according to claim 1 is a heat exchanger having a core portion in which a plurality of metal plate members are laminated, and a first flow in which a first fluid flows between the laminated plate members. A path and a plurality of second flow paths through which a second fluid having a pressure higher than that of the first fluid circulate are alternately formed, and the first plate surface on the first flow path side of the plate member has a plate member The mixed powder of the metal powder and the adsorbent pressurized and filled from the stacking direction is sintered, the sintered body that adsorbs or desorbs the first fluid is joined, and the outer peripheral edge of each second flow path is entirely It is characterized by being sealed over the circumference.

  According to this, since the sintered body can be sintered in a state of being pressed in a direction perpendicular to the first surface, the number of contact points between the metal powders and the number of contact points between the metal powder and the first surface are determined. It is possible to increase the bonding area between the metal powder and the first surface. Therefore, the heat transfer performance between the first surface and the sintered body can be improved.

  Moreover, in the invention which concerns on Claim 2, the junction parts formed in the outer-periphery edge part of the 2nd board surface of the board member used as the 2nd flow path side are joined, It is characterized by the above-mentioned.

  According to this, a 2nd flow path can be sealed over the perimeter in the distribution direction cross section of a 2nd fluid by a junction part.

  Further, in the invention according to claim 3, a recess is formed on the inner peripheral side of the joint, the outer surface of the recess is the first plate surface, and the two plate members have the joint. By being joined, an adsorption module in which a second flow path is formed is formed, and a plurality of adsorption modules are stacked.

  According to this, since the second flow path can be formed inside the adsorption module, it is easily realized that the second flow path is sealed over the entire circumference in the flow direction cross section of the second fluid. be able to.

  Moreover, in the invention which concerns on Claim 4, the distribution | circulation channel | path which a 1st fluid distribute | circulates forms between the sintered compacts arrange | positioned among the laminated | stacked adsorption | suction modules between the 1st board surfaces of an adjacent adsorption | suction module. It is characterized by being.

  According to this, it becomes easy to distribute | circulate a 1st fluid over the whole region of the sintered compact arrange | positioned between each adsorption | suction module.

  In the invention according to claim 5, the adsorption module includes a fin disposed in the adsorption module in the second flow path.

  According to this, since the fin joined to the inner surface of the adsorption module forming the second flow path is disposed in the second flow path, the pressure difference between the first flow path and the second flow path Expansion deformation of the second channel can be suppressed.

  In the invention according to claim 6, the plate member has a first container body having the first surface as the inner surface of the bottom portion, and a second container body having the first surface as the outer surface of the bottom portion, 1 container body has the 1st junction part extended toward the lamination direction one end side of a board member from the perimeter of the perimeter in the bottom of the 1st container body, and the 2nd container body is the bottom of the 2nd container body A second joining portion extending from the entire circumference of the outer periphery toward one end side in the stacking direction of the plate member, and the first container body and the second container body are joined by contacting each joining portion. Thus, the second flow path is sealed over the entire circumference in the cross section in the flow direction of the second fluid.

  According to this, a 2nd flow path can be sealed over the perimeter in the distribution direction cross section of a 2nd fluid by a junction part.

  Moreover, in the invention which concerns on Claim 7, the adsorption | suction module in which a 2nd flow path is formed is comprised by making each junction part contact | abut the 1st container body and the 2nd container body, The 1st surface A plurality of adsorption modules are stacked to sandwich the sintered body disposed on the core to constitute a core portion.

  According to this, since the second flow path can be formed inside the adsorption module, it is easily realized that the second flow path is sealed over the entire circumference in the flow direction cross section of the second fluid. be able to.

  Further, in the invention according to claim 8, ribs are provided on the bottom portions of the first container body and the second container body so as to protrude with the first surface outward, and the module is configured to contact the ribs. It is characterized by being stacked in plural.

  According to this, the expansion deformation of the second flow path due to the differential pressure between the first flow path and the second flow path can be suppressed by bringing the ribs into contact with each other.

  The invention according to claim 9 is characterized in that the sintered body is formed with a groove-shaped flow passage through which the first fluid flows.

  According to this, it becomes easy to distribute | circulate a 1st fluid over the whole region of the sintered compact arrange | positioned between each adsorption | suction module.

  The invention according to claim 10 is characterized in that the circulation passage is formed in a shape surrounding the rib over the entire circumference.

  According to this, even if it is in the 1st flow path from which a rib protrudes, a 1st fluid can be reliably distribute | circulated over the whole region of a sintered compact.

  In the invention according to claim 11, the plate member is formed by alternately and alternately forming recesses recessed in the stacking direction of the plate members and projecting projections, and the plurality of plate members are provided at the front end surfaces of the projections. And the bottom surface of the concave portion of the plate member located on the front end side of the convex portion are brought into contact with each other, and the bottom surface of the concave portion is in contact with the front end surface of the convex portion of the plate member located on the bottom surface side of the concave portion. In this case, the second fluid is sealed over the entire circumference in the flow direction cross section of the second fluid.

  According to this, a 2nd flow path can be sealed over the perimeter in the distribution direction cross section of a 2nd fluid by a recessed part and a convex part.

It is sectional drawing which shows the heat exchanger in 1st Embodiment of this invention. It is a bottom view which shows the board member in 1st Embodiment. It is sectional drawing which shows the heat exchanger in 2nd Embodiment. It is a top view which shows the 1st container body in 2nd Embodiment. It is sectional drawing which shows the cross section of the rib in 2nd Embodiment. It is a disassembled perspective view which shows the heat exchanger in 3rd Embodiment. It is a partially expanded sectional view of the AA cross section shown in FIG. It is a partially expanded sectional view of the BB cross section shown in FIG. It is a perspective view which shows the 1st board member in 3rd Embodiment. It is a perspective view which shows the 2nd board member in 3rd Embodiment. It is a top view which shows the board member in other embodiment. It is a top view which shows the board member in other embodiment. It is sectional drawing which shows the adsorption | suction module in other embodiment. It is a top view which shows the adsorption | suction module in other embodiment. It is sectional drawing which shows the heat exchanger in other embodiment. It is a partially expanded sectional view which shows the cross section of the core part in other embodiment. It is a partially expanded sectional view which shows the cross section of the core part in other embodiment.

(First embodiment)
Hereinafter, the structure of the heat exchanger 100 in 1st Embodiment of this invention is demonstrated using FIG.1 and FIG.2. FIG. 1 is a cross-sectional view showing a heat exchanger 100 in the present embodiment. FIG. 2 is a bottom view showing the plate member 110 in the present embodiment.

  The heat exchanger 100 exchanges heat between an adsorbent contained in a sintered body 120 described later and a heat exchange medium passing through a second flow path 190 described later, and the adsorbent is a gas-phase adsorbed medium. When water vapor (first fluid) is adsorbed, water that is an adsorbed medium in the liquid layer is evaporated, and the heat exchange medium (second fluid) is cooled by the latent heat of evaporation. Further, when the adsorbent is heated by a high-temperature heat exchange medium, water vapor adsorbed on the adsorbent is desorbed from the adsorbent. The heat exchanger 100 includes a heat exchange unit 101 that exchanges heat between the first fluid and the second fluid, a housing 130 that houses the heat exchange unit 101, a lid member 131 that closes an opening of the housing 130, and a housing 130. A flow pipe 150 connected to the heat exchange section 101, and an inflow pipe 160 and an outflow pipe 170 connected to the heat exchange unit 101.

  The heat exchange unit 101 is configured by stacking a plurality of plate members 110. The plate member 110 is a circular metal plate member, and copper is used in this embodiment. In the plate member 110, a joint portion 111 is formed over the entire outer periphery. The joining part 111 is an annular plane. On the inner side of the joint portion 111 of the plate member 110, a recess 112 is formed that is surrounded by the joint portion 111 over the entire circumference and is recessed in the stacking direction of the plate member 110. The bottom 113 of the recess 112 is a circular plane. That is, the outer surface 114 which is a surface of the bottom 113 main surface on the side in which the recess 112 is recessed is a circular plane. The recess 112 shown in FIG. 2 is recessed toward the front side in the vertical direction with respect to the paper surface.

  In the bottom 113, communication portions 115 and 116 having circular holes are formed. The communication portions 115 and 116 are formed with a longest distance in the bottom portion 113. The communication portions 115 and 116 are opened in a state where they are recessed from the bottom 113 in the direction in which the recess 112 is recessed. In other words, the communication portions 115 and 116 are opened in a shape that protrudes outward from the bottom portion 113 when viewed from the bottom side.

  A sintered body 120 formed by sintering metal powder is joined to the outer surface 114 of the bottom 113 over the entire surface of the outer surface 114. The sintered body 120 is obtained by sintering a mixed powder obtained by mixing a metal powder and an adsorbent, and the sintered body 120 is metallically coupled to the outer surface 114 and receives heat from the outer surface 114, or It is a heat transfer body that radiates heat to the outer surface. In this embodiment, copper powder is used as the metal powder that forms the sintered body 120. The sintered body 120 has a uniform thickness and is joined to the outer surface 114 with a thickness smaller than the protruding height of the communication portions 115 and 116.

  The adsorbent (not shown) contained in the sintered body 120 is a porous body having fine gaps inside, and for example, silica gel or the like is used. The The adsorbent adsorbs or desorbs the first fluid in the gaseous state. In this embodiment, the adsorbent adsorbs or desorbs the water in the gaseous state, that is, water vapor. The adsorbent receives heat from the held sintered body 120 and adsorbs the first fluid in the gaseous state when the temperature rises, and desorbs the first fluid in the gaseous state when the temperature decreases due to heat dissipation to the sintered body 120. To do.

  The pair of plate members 110 are stacked with the bottom 113 facing each other and the outer surface 114 facing outside to constitute the suction module 103. Specifically, the pair of plate members 110 are joined by bringing the joint portions 111 into contact with each other, thereby dividing the first flow path 180 through which the first fluid flows and the second flow path 190 through which the second fluid flows. ing. That is, the second flow path 190 is formed inside the adsorption module 103. The second flow path 190 between the communication portions 115 and 116 is sealed by the joint portion 111 over the entire circumference in the cross section in the flow direction of the second fluid. The sintered body 120 is disposed outside the adsorption module 103.

  In the present embodiment, the joint portions 111 are joined by brazing. A metallic fin 140 is disposed inside the suction module 103 and is metallically coupled to the inner surface of the suction module 103.

A plurality of the adsorption modules 103 are stacked with the outer surfaces 114 facing each other to constitute the heat exchange unit 101. Each adsorption module 103 is integrated by joining the communicating portions 115 and 116 to each other by brazing.
The plurality of adsorption modules 103 are joined by bringing the communication portions 115 and 116 into contact with each other to partition the first flow path 180 and the second flow path 190. That is, the first flow path 180 is formed between the adsorption modules 103.

  Between the sintered bodies 120 joined to the outer surface 114 of each plate member 110, a flow passage 181 for flowing the first fluid over the entire area of the sintered body 120 is formed.

  A heat exchange unit 101 configured by stacking a plurality of adsorption modules 103 includes a core unit 102, a distribution tank 104, and a collection tank 105. The core part 102 transfers the heat of the second fluid to the adsorbent through the outer surface 114 of the bottom 113 and the sintered body 120 to increase the temperature of the adsorbent, or the heat of the adsorbent is sintered. This is a part that lowers the temperature of the adsorbent by transferring heat to the second fluid via 120 and the outer surface 114 of the bottom 113.

  The distribution tank 104 is a header tank formed by laminating a plurality of plate members 110 and communicating with the communication portion 115. An inflow pipe 160, which is a pipe member that supplies the second fluid to the heat exchange unit 101, extends in the stacking direction of the plate members 110 and is connected to the distribution tank 104. The distribution tank 104 distributes the second fluid flowing in from the inflow pipe 160 to the second flow path 190 formed in the core portion 102.

  The collective tank 105 is a header tank formed by laminating a plurality of plate members 110 and communicating with the communication portion 116. An outflow pipe 170 that is a pipe member that discharges the second fluid from the heat exchange unit 101 extends in the same direction as the direction in which the plate members 110 are stacked and the inflow pipe 160 extends. Has been. The collecting tank 105 collects the second fluid from the second flow path 190 formed in the core portion 102 and flows it out from the outflow pipe 170.

  The second fluid flowing in from the inflow pipe 160 is distributed to the plurality of second flow paths 190 by the distribution tank 104. The second fluid that has passed through the plurality of second flow paths 190 gathers in the collecting tank 105 and flows out from the outflow pipe 170. The second flow path 190 through which the second fluid passes is formed between the plate members 110 sealed by the joint portion 111. The heat exchange unit 101 generates heat between the second fluid that flows through the second flow path 190 divided into a plurality of flow paths in the core part 102 and the first fluid that flows through the first flow path 180 in the core part 102. Let them exchange. The housing 130 is a bottomed box member that accommodates the heat exchange unit 101 therein. The bottom surface of the housing 130 is circular. The inner surface of the housing 130 is not in contact with the heat exchange unit 101, and a circulation space 182 in which the first fluid flows is formed between the inner surface of the housing 130 and the heat exchange unit 101. The distribution space 182 constitutes the first flow path 180 together with the distribution passage 181. Moreover, the housing | casing 130 is opened to the extending direction side of the inflow pipe | tube 160 and the outflow pipe | tube 170 in the lamination direction of the plate member 110, and the opening edge part is formed in the flange shape.

  The lid member 131 is a flat plate member, and is joined to an opening formed in a flange shape of the housing 130 to close the opening of the housing 130. The lid member 131 fixes the flow pipe 150, the inflow pipe 160 and the outflow pipe 170 that pass through the lid member 131. The lid member 131 holds the heat exchange unit 101 via the inflow pipe 160 and the outflow pipe 170.

  The distribution pipe 150 is a pipe member that communicates the distribution space 182 in the housing 130 with a storage tank (not shown) in which the first fluid is stored in a liquid state. The first fluid in a gaseous state is circulated between the inside of the housing 130 and the storage tank via the circulation pipe 150. In this embodiment, the opening part of the housing | casing 130 is obstruct | occluded with the cover member 131, and the 1st flow path 180 in the housing | casing 130 is made into the substantially vacuum state.

  Here, the sintered body 120 in this embodiment is sintered by a molding process in which metal powder is pressed against the plate member 110 and a heat treatment process in which heat treatment is performed at a temperature equal to or lower than the melting point. Yes. In the forming step, the sintered body 120 is pressure-formed in a direction perpendicular to the outer surface 114 of the plate member 110. In other words, the sintered body 120 is pressure-formed in the stacking direction of the plate member 110 with respect to the outer surface 114 of the plate member 110.

  Next, the operation of the heat exchanger 100 in the present embodiment will be described. The second fluid serving as the heat source of the heat exchanger 100 in the present embodiment flows into the distribution tank 104 of the heat exchange unit 101 via the inflow pipe 160. Then, it is distributed to each adsorption module 103 in the distribution tank 104. In other words, the second fluid is divided by the plate member 110 in the distribution tank 104 and distributed to the second flow path 190 that is sealed over the entire circumference in the cross section in the flow direction of the second fluid. And the 2nd fluid which distribute | circulates the 2nd flow path 190 in the core part 102 collects in the collection tank 105, after radiating heat | fever to the bottom part 113 and the fin 140. FIG. Therefore, the temperature of the second fluid collected in the collecting tank 105 is lower than the temperature of the second fluid flowing into the distribution tank 104. Thereafter, the second fluid collected in the collecting tank 105 flows out of the heat exchanger 100 through the outflow pipe 170.

  On the other hand, the bottom 113 and the fins 140 that have received heat from the second fluid transfer heat to the sintered body 120 through the outer surface 114. Further, the sintered body 120 transfers heat to the adsorbent held inside the sintered body 120 to increase the temperature of the adsorbent. The adsorbent whose temperature has increased adsorbs the first fluid in a gaseous state in the first flow path 180. Specifically, the adsorbent held by the sintered bodies 120 arranged between the adsorption modules 103 adsorbs the first fluid in the flow passage 181 in the first flow path 180. The adsorbent that is held by the sintered body 120 disposed on the plate member 110 at the extreme end in the stacking direction of the plate member 110 adsorbs the first fluid in the flow space 182 in the first flow path 180. As a result, since the first fluid in the gas state in the housing 130 is adsorbed by the adsorbent, the first fluid in the liquid state stored in the storage tank evaporates, and the inside of the housing 130 is passed through the flow pipe 150. Flow into.

  Therefore, for example, in the storage tank, if a cold heat recovery means for recovering the cold heat when the first fluid evaporates is provided, the cold heat can be recovered using the heat of the cooling water for cooling the internal combustion engine. it can. Thereafter, for example, when the flow of the second fluid in the second flow path 190 stops and the temperature of the adsorbent decreases, the adsorbent desorbs the first fluid in the gaseous state. The desorbed first fluid in the gaseous state is condensed in the storage tank and stored again in the storage tank in the liquid state.

  Since the adsorbent contained in the sintered body in the present embodiment does not sinter-bond with the metal powder and the plate member 110, the bonding between the metal powder and the outer surface 140 of the plate member 110 is hindered. However, the heat exchanger 100 increases the joining point between the metal powders and the joining point with the outer surface 140 by press-molding the sintered body 120 perpendicularly to the outer surface 114 and being heat-treated. The heat transfer performance between the outer surface 114 and the sintered body 120 can be improved.

  Further, in the heat exchanger 100 according to the present embodiment, the second flow path 190 in the core portion 102 is divided by the plate member 110, and the second fluid flows in a divided manner in the core portion 102. Therefore, the core part 102 can form the 2nd flow path 190 with the thin plate member 110 compared with the core part in which the 2nd flow path through which the 2nd fluid with a large flow volume distribute | circulated was formed. . Therefore, the weight of the heat exchanger 100 can be reduced.

  In addition, the heat exchanger 100 in the present embodiment includes fins 140 joined to the plate member 110 in the second flow path 190. Therefore, the expansion deformation of the second flow path 190 caused by the differential pressure between the first flow path 180 and the second flow path 190 can be suppressed by the fins 140.

  The outer surface 114 in the present embodiment corresponds to the first plate surface of the present invention, and the surface on the back side of the outer surface 114 of the plate member 110 corresponds to the second plate surface of the present invention.

(Second Embodiment)
The heat exchanger 200 in 2nd Embodiment of this invention is demonstrated using FIG.3 and FIG.4. FIG. 3 is a cross-sectional view showing a heat exchanger 200 in the second embodiment. FIG. 4 is a top view showing the first container body 210 in the second embodiment. In the following embodiments, the same components as those in the first embodiment described above are denoted by the same reference numerals, description thereof will be omitted, and different configurations and features will be described.

  The heat exchanger 200 exchanges heat between the first fluid and the second fluid. The heat exchanger 200 includes a heat exchange unit 201 that exchanges heat between the first fluid and the second fluid, a flow pipe 250 connected to the heat exchange part 201, an inflow pipe 260, and an outflow pipe 270. The first fluid in the present embodiment is water, and the second fluid is cooling water that cools an internal combustion engine (not shown).

  The heat exchanging unit 201 is configured by stacking a plurality of adsorption modules 203 having a first container body 210a and a second container body 210b. The first container body 210a is a rectangular metal container body, and copper is used in this embodiment. The 1st container body 210a has the 1st junction part 211a formed over the perimeter of the outer periphery. The first joint portion 211a is a rectangular annular cylindrical portion extending to one end side. And it is diameter-expanded in the direction which the 1st container body 210a expands as it extends to one end side.

  A first bottom portion 213a surrounded by the first joint portion 211a over the entire circumference is formed inside the first joint portion 211a of the first container body 210a. First communication portions 215a, 216a, and 217a are formed on the first bottom portion 213a. The first communication portions 215a and 216a are formed with the longest distance in the first bottom portion 213a. The first communication portions 215a and 216a constitute a part of the second flow path 290 through which the second fluid flows, and open in a shape protruding from the first bottom portion 213a to one end side. On the other hand, the first communication portion 217a constitutes a part of the first flow path 280 through which the first fluid flows, and opens in a shape protruding from the first bottom portion 213a to the other end side.

  A plurality of first ribs 240a are formed on the first bottom portion 213a. The first rib 240a protrudes circularly from the first bottom portion 213a to one end side, and is formed in rows and columns on the first bottom portion 213a.

  On one end surface 214a of the first bottom portion 213a, a sintered body 220 formed by sintering metal powder is disposed over the entire end surface 214a. The sintered body 220 is a heat transfer body that is metallically coupled to the one end face 214a and receives heat from the one end face 214a or dissipates heat to the one end face 214a. In this embodiment, copper powder is used as the metal powder that forms the sintered body 220. The sintered body 220 is lower than the extending height of the first joint portion 211a.

  The sintered body 220 is formed with a flow passage 281 for flowing the first fluid in a gaseous state over the entire area of the sintered body 220. The circulation passage 281 is formed in a mesh shape. In addition, a rib recess 221 that is recessed in a circular shape is formed at the center of each part surrounded by the flow passage 281 of the sintered body 220.

  The sintered body 220 is a porous body having a fine gap (not shown) inside, and is sintered while holding an adsorbent (not shown) in the gap. The adsorbent adsorbs or desorbs the first fluid in the gaseous state. In this embodiment, silica gel that adsorbs or desorbs the water in the gaseous state, that is, water vapor, is used. The adsorbent receives heat from the held sintered body 220 and adsorbs the first fluid in a gaseous state when the temperature rises, and desorbs the first fluid in the gaseous state when the temperature is lowered by releasing heat to the sintered body 220. To do.

  The 2nd container body 210b has the 2nd junction part 211b formed over the perimeter of the outer periphery. The 2nd junction part 211b is a site | part extended in a rectangular annular cylinder shape, and is extended to the one end side. And it is diameter-expanded in the direction which the 2nd container body 210b expands as it extends to one end side.

A second bottom portion 213b surrounded by the second joint portion 211b over the entire circumference is formed inside the second joint portion 211b of the second container body 210b. Second communication portions 215b, 216b, and 217b are formed on the second bottom portion 213b. The second communication portions 215b and 216b are formed with the longest distance in the second bottom portion 213b. The second communication portions 215b and 216b constitute a part of the second flow path 290 through which the second fluid flows, and open in a shape protruding from the second bottom portion 213b to the other end side. On the other hand, the 2nd communication part 217b comprises a part of 1st flow path 290 through which a 1st fluid distribute | circulates, and is opened in the shape which protrudes from the 2nd bottom part 213b to one end side.
A plurality of second ribs 240b are formed on the second bottom 213b. The second ribs 240b protrude in a circular shape from the second bottom 213b to the other end side, and are formed in rows and columns on the second bottom 213b.

  The first container body 210a and the second container body 210b are laminated with the bottom portions 213a and 213b facing each other, with one end surface 214a of the first container body 210a and the other end surface 214b of the second container body 210b facing outside. The adsorption module 203 is configured.

  Specifically, the first container body 210a and the second container body 210b are joined by brazing with the joint portions 211a and 211b coming into contact with each other, so that the first flow path 280 and the second fluid through which the first fluid flows. And the second flow path 290 through which the gas flows. Moreover, the 1st communication part 217a of the 1st container body 210a and the 2nd communication part 217b of the 2nd container body 210b are joined by brazing. A second flow path 290 is formed inside the adsorption module 203. The second flow path 290 between the communication portions 215a and 215b and the communication portions 216a and 216b is sealed over the entire circumference in the cross section in the flow direction of the second fluid by the joint portions 211a and 211b. The sintered body 220 is disposed outside the adsorption module 203.

  A plurality of adsorption modules 203 are stacked such that one end surface 214a of the first container body 210a faces the other end surface 214b of the second container body 210b of the adjacent adsorption module 203 to form the heat exchange unit 201. is doing.

  Specifically, each adsorption module 203 is brazed and joined by bringing the joining portions 211a and 211b into contact with each other. Further, the first communication portion 215a of the first container body 210a and the second communication portion 215b of the second container body 210b are connected by brazing, and the first communication portion 216a of the first container body 210a and the second container are joined. The body 210b is brazed and joined to the second communication portion 216b.

  The plurality of adsorption modules 203 include a first rib 240a formed on one end surface 214a of the first container body 210a, and a second rib 214b formed on the other end surface 214b of the second container body 210b constituting the adjacent adsorption module 203. The two ribs 240b are in contact with each other and stacked. In other words, the plurality of adsorption modules 203 are arranged in the rib recess 221 of the sintered body 220 arranged on the one end surface 214a of the first container body 210a, and the second container bodies 210b constituting the adjacent adsorption module 203. The second rib 240b formed on the other end surface 214b is inserted, and the second rib 240b and the first rib 240a inserted into the rib recess 221 are brought into contact with each other to be laminated. A sintered body that is metal-bonded to one end surface 214a of the first container body 210a constituting the adjacent adsorption module 203 is metal-bonded to the other end surface 214b of the second container body 210b in the same manner as the one end surface 214a.

  By stacking a plurality of adsorption modules 203, a first flow path 280 through which a first fluid flows is formed between the adsorption modules 203. Specifically, a first flow path 280 is formed by one end surface 214a of the first container body 210a and the other end surface 214b of the second container body 210b.

  A heat exchange unit 201 configured by stacking a plurality of adsorption modules 203 includes a core unit 202, a distribution tank 204, a collection tank 205, and a distribution tank 206.

  The core portion 202 transfers the heat of the second fluid to the adsorbent through the bottom portions 213a, 213b and the sintered body 220 to increase the temperature of the adsorbent, or heats the adsorbent to the sintered body 220 and It is a part which lowers the temperature of the adsorbent by transferring heat to the second fluid via the bottom parts 213a and 213b.

  The second flow path 290 in the core portion 202 is divided into a plurality of flow paths by the first container body 210a and the second container body 210b. In other words, the second flow path 290 in the core portion 202 is the second flow path 290 that is sealed over the entire circumference in the cross section in the flow direction of the second fluid. Therefore, the heat exchanging unit 201 is between the second fluid flowing through the second flow path 290 divided into a plurality of flow paths in the core part 202 and the first fluid flowing through the first flow path 280 in the core part 202. Heat exchange.

  The distribution tank 204 is a header tank formed by stacking a plurality of suction modules 203 and communicating the communication portions 215a and 215b. An inflow pipe 260, which is a pipe member that supplies the second fluid to the heat exchange unit 201, extends in the stacking direction of the adsorption module 203 and is connected to the distribution tank 204. The distribution tank 204 distributes the second fluid flowing in from the inflow pipe 260 to the second flow path 290 formed in the core portion 202.

  The collective tank 205 is a header tank formed by stacking a plurality of adsorption modules 203 and communicating the communication portions 216a and 216b. An outflow pipe 270 that is a pipe member that discharges the second fluid from the heat exchange unit 201 extends in the same direction as the stacking direction of the adsorption module 203 and the inflow pipe 260 extends to the collective tank 205. Has been. The collecting tank 205 collects the second flow path from the second flow path 290 formed in the core portion 202 and flows out from the outflow pipe 270.

  The distribution tank 206 is a header tank formed by stacking a plurality of adsorption modules 203 and communicating the communication portions 217a and 217b. A circulation pipe 250 is connected to the circulation tank 206 so as to extend in the same direction as the direction in which the suction modules 203 are stacked and the inflow pipe 260 extends. The distribution tank 206 is a pipe member that supplies the first fluid to the heat exchanger 200 or discharges it from the heat exchanger 200.

  The flow pipe 250 is a pipe member that communicates the flow tank 206 with a storage tank (not shown) in which the first fluid is stored in a liquid state. The first fluid in a gas state is circulated between the distribution tank 206 and the storage tank via the distribution pipe 250. In the present embodiment, the first flow path 280 is in a substantially vacuum state.

  Here, the sintered body 220 in the present embodiment combines the metal powder with a molding process in which metal powder is pressed against the first container body 210a and the second container body 210b and heat-treated at a temperature equal to or lower than the melting point. It is sintered by a heat treatment process. In the molding step, the sintered body 220 is pressure-molded in a direction perpendicular to the one end surface 214a of the first container body 210a and the other end surface 214b of the second container body 210b. In other words, the sintered body 120 is pressure-formed in the stacking direction of the container bodies 210a and 210b with respect to the one end surface 214a of the first container body 210a and the other end surface 214b of the second container body 210b.

  Next, the operation of the heat exchanger 200 in the present embodiment will be described. The second fluid serving as the heat source of the heat exchanger 200 in the present embodiment flows into the distribution tank 204 of the heat exchange unit 201 via the inflow pipe 260. Then, it is distributed to each adsorption module 203 by the distribution tank 204. In other words, the second fluid is divided by the first container body 210a and the second container body 210b in the distribution tank 204, and is sealed over the entire circumference in the cross section in the flow direction of the second fluid. 290. And the 2nd fluid which distribute | circulates the 2nd flow path 290 in the core part 202 collects in the collection tank 205, after radiating heat | fever to the bottom parts 213a and 213b. Accordingly, the temperature of the second fluid collected in the collecting tank 205 is lower than the temperature of the second fluid flowing into the distribution tank 204. Thereafter, the second fluid collected in the collection tank 205 flows out of the heat exchanger 200 through the outflow pipe 270.

  On the other hand, the bottom portions 213a and 213b that receive heat from the second fluid transfer heat to the sintered body 220 via the one end surface 214a and the other end surface 214b, respectively. Further, the sintered body 220 transfers heat to the adsorbent held inside the sintered body 220 and raises the temperature of the adsorbent. The adsorbent whose temperature has increased adsorbs the first fluid in a gaseous state in the first flow path 290. Specifically, the adsorbent held by the sintered bodies 120 disposed between the adsorption modules 203 adsorbs the first fluid in the flow passage 281 in the first flow path 180. As a result, since the first fluid in the gas state in the first flow path 280 is adsorbed by the adsorbent, the first fluid in the liquid state stored in the storage tank evaporates, and the distribution tank is connected via the distribution pipe 250. It flows into 206.

  Therefore, for example, in the storage tank, if a cold heat recovery means for recovering the cold heat when the first fluid evaporates is provided, the cold heat can be recovered using the heat of the cooling water for cooling the internal combustion engine. it can. Thereafter, for example, when the flow of the second fluid in the second flow path 290 stops and the temperature of the adsorbent decreases, the adsorbent desorbs the first fluid in the gaseous state. The desorbed first fluid in the gaseous state is condensed in the storage tank and stored again in the storage tank in the liquid state.

  In the heat exchanger 200 in the present embodiment, the sintered body 220 is heat-treated after being pressure-formed in a direction perpendicular to the one end surface 214a and the other end surface 214b of the bottom portions 213a and 213b. When the sintered body 220 is pressure-molded perpendicularly to the end faces 214a and 214b and heat-treated, the joining points of the metal powders contained in the adsorbent and the joining points of the metal powder and the end faces 214a and 214b increase. The heat transfer performance between the end faces 214a and 214b and the sintered body 120 can be improved.

  In addition, the heat exchanger 200 of the present embodiment can exchange heat between the first fluid and the second fluid without having a housing like the heat exchanger 100 in the first embodiment, It is possible to reduce the material cost and the weight of the heat exchanger 200.

  In the heat exchanger 200 according to the present embodiment, the second flow path 290 in the core portion 202 is divided by the container bodies 210 a and 210 b, and the second fluid flows in a divided manner in the core portion 202. Therefore, the core part 202 forms the second flow path 290 with the thin-walled container bodies 210a and 210b as compared with the core part in which the second flow path through which the second fluid with a large flow rate is circulated. Can do. Therefore, the weight of the heat exchanger 200 can be reduced.

  Moreover, the heat exchanger 200 in the present embodiment includes ribs 240a and 240b that abut against each other. Therefore, the expansion deformation of the second flow path 290 caused by the differential pressure between the first flow path 280 and the second flow path 290 can be suppressed by the ribs 240a and 240b.

  The effects of the ribs 240a and 240b will be described with reference to FIG. FIG. 5 is a cross-sectional view showing a cross section of the ribs 240a and 240b in the present embodiment. The sintered body 220 has a volume indicated by a broken line in FIG. 5 before being sintered, but when sintered, the ribs 240a and 240b are centered up to a volume indicated by a solid line in FIG. Shrink. Since the sintered body 220 contracts around the ribs 240a and 240b, more metal powder approaches the ribs 240a and 240b and increases the number of bonding points between the metal powder and each end face 214a and 214b. The improvement in performance can be further improved.

  In addition, the 1st container body 210a and the 2nd container body 210b in this embodiment are corresponded to the board member in this invention. In addition, the one end surface 214a and the other end surface 214b in the present embodiment correspond to the first plate surface of the present invention.

(Third embodiment)
The structure of the heat exchanger 300 according to the third embodiment of the present invention will be described with reference to FIGS. FIG. 6 is an exploded perspective view showing the heat exchanger 300 in the present embodiment. FIG. 7 is a partially enlarged cross-sectional view of the AA cross section shown in FIG. FIG. 8 is a partially enlarged cross-sectional view of the BB cross section shown in FIG. FIG. 9 is a perspective view showing the first plate member 310a in the present embodiment. FIG. 10 is a perspective view showing the second plate member 310b in the present embodiment. Here, the cross-sectional views shown in FIGS. 7 and 8 are cross-sectional views when the disassembled heat exchanger 300 shown in FIG. 6 is assembled.

  The heat exchanger 300 exchanges heat between the first fluid and the second fluid. The heat exchanger 300 includes a heat exchange unit 301 that exchanges heat between the first fluid and the second fluid. The first fluid in the present embodiment is water, and the second fluid is cooling water that cools an internal combustion engine (not shown).

  The heat exchange unit 301 is configured by laminating a plurality of plate members 310a and 310b. The plate members 310a and 310b are rectangular metal plate members, and copper is used in this embodiment. The plate members 310a and 310b are formed with joint portions 311a and 311b formed over the entire outer periphery. The joint portions 311a and 311b are rectangular annular cylindrical portions extending to one end side. Inside the joint portions 311a and 311b of the plate members 310a and 310b, the concave portions 312a and 312b that are surrounded by the joint portions 311a and 311b and are recessed in the stacking direction of the plate members 310a and 310b, and the plate members 310a, Convex portions 313a and 313b projecting in the stacking direction of 310b are alternately formed continuously in the left-right direction. The concave portions 312a and 312b and the convex portions 313a and 313b are formed to extend in the flow direction perpendicular to the stacking direction and the left-right direction of the plate members 310a and 310b. The width in the left-right direction at the bottom of the recess 312a of the first plate member 310a is larger than the width in the left-right direction at the tip of the protrusion 313a. The width in the left-right direction at the bottom of the recess 312b of the second plate member 310b is smaller than the width in the left-right direction at the tip of the protrusion 313b.

  A sintered body 320 formed by sintering metal powder is disposed inside the first concave portion 312a of the first plate member 310a and inside the second convex portion 313b of the second plate member 310b. The sintered body 320 is metallically coupled to the first inner surface 314a of the first concave portion 312a of the first plate member 310a and the second inner surface 314b of the second convex portion 313b of the second plate member 310b. It is a heat transfer body that receives heat from the surface or radiates heat to the inner surface. In the present embodiment, copper powder is used as the metal powder that forms the sintered body 320. The sintered body 320 has a uniform thickness and is disposed inside with a thickness smaller than the height of the first concave portion 312a of the first plate member 310a and the height of the second convex portion 313b of the second plate member 310b. Has been.

  The sintered body 320 is a porous body having fine gaps (not shown) inside, and is sintered while holding an adsorbent (not shown) in the gaps. The adsorbent adsorbs or desorbs the first fluid in the gaseous state. In this embodiment, silica gel that adsorbs or desorbs the water in the gaseous state, that is, water vapor, is used. The adsorbent receives heat from the held sintered body 320 and adsorbs the first fluid in the gaseous state when the temperature rises, and desorbs the first fluid in the gaseous state when the temperature decreases by releasing heat to the sintered body 320. To do.

  In the plate members 310a and 310b, on the inner side of the joint portions 311a and 311b, the communication portions 315 having oval holes are formed at both ends in the flow direction where the concave portions 312a and 312b and the convex portions 313a and 313b are not formed. 316, 317, and 318 are formed. The communication portion 315 is located on one end side in the flow direction of the plate members 310a and 310b and on the right side in the left-right direction, and the communication portion 316 is located on the other end side in the flow direction and on the left side in the left-right direction. The communication portion 317 is located on the other end side in the flow direction of the plate members 310a and 310b and on the right side in the left-right direction, and the communication portion 318 is located on one end side in the flow direction and on the left side in the left-right direction. The communication portions 315a, 316a, 317b, and 318b are opened in a shape protruding to one end side. The communication portions 315b, 316b, 317a, and 318a are opened in a shape protruding to the other end side.

  The pair of plate members 310a and 310b are stacked with the bottom of the recess 312a and the tip of the projection 313b facing each other and abutting each other to constitute the suction module 303.

  Specifically, the pair of plate members 310a and 310b are joined to each other by bringing the joint portions 311a and 311b, the communication portions 317a and 317b, the communication portions 318a and 318b into contact with each other, and the bottom and convex portions of the recess 312a. The leading end of 313b is brazed and joined to partition a first flow path 380 through which the first fluid flows and a second flow path 390 through which the second fluid flows. A second flow path 390 is formed inside the adsorption module 303. Specifically, the second flow path 190 partitioned by the concave portion 312b and the convex portion 313a is sealed over the entire circumference in the cross section in the flow direction of the second fluid by joining the concave portion 312a and the convex portion 313b. It has been stopped. The sintered body 320 is disposed outside the adsorption module 303.

  A plurality of adsorption modules 303 are stacked to constitute the heat exchange unit 101. Each suction module 303 is brazed by joining the tip of the convex portion 313a and the bottom of the concave portion 312b with the adjacent suction module 303 facing the bottom of the concave portion 312b and the tip of the convex portion 313a. Has been. Further, the communication portions 315a and 315b and the communication portions 316a and 316b are joined together by brazing. The plurality of adsorption modules 303 partition the first flow path 380 and the second flow path 390. A first flow path 380 is formed between the adsorption modules 103. Two layers of the sintered body 320 are disposed in the first flow path 380 formed between the adsorption modules 103, and are not disposed on both ends in the stacking direction of the heat exchange unit 101.

  The two layers of sintered bodies 320 disposed in the first flow path 380 are disposed without contacting each other. In other words, a flow passage 381 for flowing the first fluid over the entire area of the sintered body 320 is formed between the two layers of the sintered body 320.

  A heat exchange unit 301 configured by stacking a plurality of adsorption modules 303 includes a core unit 302, a distribution tank 304, a collection tank 305, and distribution tanks 306 and 307.

  The core portion 302 constituted by the concave portions 312 and the convex portions 313 increases the temperature of the adsorbent by transferring the heat of the second fluid to the adsorbent through the sintered body 320, or increases the temperature of the adsorbent. This is a part that lowers the temperature of the adsorbent by transferring heat to the second fluid through the sintered body 320.

  The second flow path 390 in the core portion 302 is divided into a plurality of flow paths by the plate members 310a and 310b. In other words, the second flow path 390 in the core portion 302 is the second flow path 390 that is sealed over the entire circumference in the cross section in the flow direction of the second fluid by the convex portion 313a and the concave portion 312b. Therefore, the heat exchanging unit 301 is between the second fluid flowing through the second flow path 390 divided into a plurality of flow paths in the core portion 302 and the first fluid flowing through the first flow path 380 in the core portion 302. Heat exchange.

  The distribution tank 304 is a header tank formed by laminating a plurality of plate members 310a and 310b and communicating the communicating portions 315a and 315b. The distribution tank 304 distributes the second fluid that has flowed into the distribution tank 304 to the second flow path 390 formed in the core portion 302.

  The collective tank 305 is a header tank formed by laminating a plurality of plate members 310a and 310b and communicating the communicating portions 316a and 316b. The collection tank 305 collects the second fluid from the second flow path 390 formed in the core portion 302 and discharges it from the heat exchange unit 301.

  The distribution tank 306 is a header tank formed by laminating a plurality of plate members 310a and 310b and communicating the communication portions 317a and 317b. The distribution tank 307 is a header tank formed by stacking a plurality of plate members 310a and 310b and communicating the communicating portions 318a and 318b. The distribution tanks 306 and 307 communicate with a storage tank (not shown) in which the first fluid is stored in a liquid state. The first flow path 380 in the present embodiment is in a substantially vacuum state.

  Here, the sintered body 320 in this embodiment is sintered by a molding process in which metal powder is pressed against the plate members 310a and 310b and a heat treatment process in which the powder is heat-treated and bonded at a temperature equal to or lower than the melting point. Has been. In the forming step, the sintered body 320 is pressure-formed in a direction perpendicular to the first inner surface 314a at the bottom of the recess 312a of the first plate member 310a. In the molding step, the sintered body 320 is pressure-molded in a direction perpendicular to the second inner surface 314b at the tip of the convex portion 313b of the second plate member 310b. In other words, the sintered body 320 is pressure-formed in the stacking direction of the plate members 310a and 310b with respect to the plate members 310a and 310b.

  Next, the operation of the heat exchanger 300 in the present embodiment will be described. The 2nd fluid used as the heat source of the heat exchanger 300 in this embodiment flows into the distribution tank 304 of the heat exchange part 301 first. The distribution tank 304 distributes the second flow path 390 formed inside each adsorption module 303. In other words, the second fluid is distributed in the distribution tank 304 to the second flow path 390 that is sealed over the entire circumference in the cross section in the flow direction of the second fluid by the convex portion 313a and the concave portion 312b. Then, the second fluid flowing through the second flow path 390 in the core portion 302 radiates heat to the concave portion 312 and the convex portion 313, and then collects in the collective tank 305 and is discharged to the outside of the heat exchange unit 301. Therefore, the temperature of the second fluid collected in the collecting tank 305 is lower than the temperature of the second fluid flowing into the distribution tank 304.

  On the other hand, the concave portion 312 and the convex portion 313 that have received heat from the second fluid transfer heat to the sintered body 320. Further, the sintered body 320 transfers heat to the adsorbent held inside the sintered body 320 and raises the temperature of the adsorbent. The adsorbent whose temperature has increased adsorbs the first fluid in a gaseous state in the first flow path 380. Specifically, the adsorbent held by the sintered bodies 320 disposed between the adsorption modules 303 adsorbs the first fluid in the flow passage 381 in the first flow path 380. As a result, since the first fluid in the gas state in the flow passage 381 is adsorbed by the adsorbent, the liquid first fluid stored in the storage tank evaporates and passes through the flow passages 306 and 307. 381 flows in.

  Therefore, for example, in the storage tank, if a cold heat recovery means for recovering the cold heat when the first fluid evaporates is provided, the cold heat can be recovered using the heat of the cooling water for cooling the internal combustion engine. it can. Thereafter, for example, when the flow of the second fluid in the second flow path 390 stops and the temperature of the adsorbent decreases, the adsorbent desorbs the first fluid in the gaseous state. The desorbed first fluid in the gaseous state is condensed in the storage tank and stored again in the storage tank in the liquid state.

  In the heat exchanger 300 in the present embodiment, the sintered body 320 is subjected to heat treatment after being pressure-formed in a direction perpendicular to the bottom of the concave portion 312a of the first plate member 310a and the tip of the convex portion 313b of the second plate member 310b. is doing. When the sintered body 320 is vertically pressed and heat-treated, more metal powder is disposed at a position near the bottom of the concave portion 312a of the first plate member 310a and the tip of the convex portion 313b of the second plate member 310b. Therefore, the number of connection points where the metal powder and the concave portion 312a of the first plate member 310a are combined and the number of connection points where the convex portion 313b of the second plate member 310b is combined are increased. Moreover, the coupling area of the coupling point where the concave portion 312a of the metal powder first plate member 310a couples and the coupling area of the coupling point where the convex portion 313b of the second plate member 310b couples increase. Therefore, the heat transfer performance of the concave portions 312 and the convex portions 313 and the sintered body 120 can be improved. Here, the first inner surface 314a at the bottom of the first recess 312a of the first plate member 310a and the second inner surface 314b at the tip of the second protrusion 313b of the second plate member 310b are more than the inner surfaces 314 of other parts. The number of bonding points with the sintered body 320 is large and the bonding area is wide.

  In the heat exchanger 300 according to this embodiment, the second flow path 390 in the core portion 302 is divided by the concave portions 312a and 312b and the convex portions 313a and 313b, and the second fluid is divided in the core portion 302. Flowing. Therefore, the core part 302 forms the second flow path 390 with thin plate members 310a and 310b as compared with the core portion in which the second flow path through which the second fluid having a large flow rate is circulated. Can do. Therefore, the weight of the heat exchanger 300 can be reduced.

  The first plate member 310a and the second plate member 310b in the present embodiment are the plate members of the present invention, and the first inner surface 314a and the second inner surface 314b in the present embodiment are the first plate surfaces of the present invention. It corresponds to.

(Other embodiments)
In the first embodiment, the fin 140 is bonded to the surface of the bottom 113 of the plate member 110 that is not on the outer surface 114 side. However, the present invention is not limited to this, and the fin 140 is abolished, and as shown in FIG. 11, a rib 440 that protrudes from the bottom 113 to the opposite side to the side where the recess 112 is recessed is formed. The plate member 410 may be used. FIG. 11 is a top view showing a plate member 410 according to another embodiment. Here, the recessed part 112 shown in FIG. 11 is recessed in the perpendicular | vertical back | inner side with respect to the paper surface. A communication part 417 is formed at the center of the plate member 410. The communication portion 417 is a portion that projects from the bottom 113 to the opposite side to the side where the concave portion 112 is recessed and opens. The rib 440 is formed to extend linearly from the communication portions 115 and 116 to the communication portion 417. The communication portion 417 and the rib 440 protrude from the bottom portion 113 to a height at which the joint portion 111 is located. When the pair of plate members 410 are stacked with the joining portion 111 being brought into contact with each other, the communication portion 417 and the rib 440 are brought into contact with each other, and the joining portion 111 is brazed and joined together. Therefore, while being able to distribute | circulate a 1st fluid inside the communication part 417, a 2nd fluid can be shunted by forming the rib 440. FIG. Further, by connecting the communication portions 417 and the ribs 440 to each other, it is possible to suppress the expansion and deformation of the flow path of the second fluid due to the differential pressure between the flow path of the first fluid and the flow path of the second fluid. it can.

  In the first embodiment, the fin 140 is joined to the main surface of the bottom 113 of the plate member 110 that is not on the outer surface 114 side. However, the present invention is not limited to this, and the rib 140 that eliminates the fin 140 and protrudes from the bottom 113 to the opposite side to the side where the recess 112 is recessed as shown in FIGS. The plate member 510 may be formed. FIG. 12 is a top view showing a plate member 510 according to another embodiment. FIG. 13 is a cross-sectional view showing a suction module 503 according to another embodiment. Here, the recessed part 112 shown in FIG. 11 is recessed in the perpendicular | vertical back side with respect to the paper surface. A plurality of ribs 540 are provided between the communication portions 115 and 116 and protrude to a height at which the joint portion 111 is located. A pair of plate members 510 are stacked with the joining portion 111 being in contact with each other to constitute the suction module 503. At this time, the ribs 540 are brought into contact with each other, and the joint 111 is brazed and joined together. Therefore, by forming the rib 540, the second fluid can be a meandering flow. Further, the ribs 540 are joined to each other, so that expansion deformation of the second fluid channel due to the differential pressure between the first fluid channel and the second fluid channel can be suppressed. Further, on the outer surface 514 of the plate member 510, as in the adsorption module 503 shown in FIG. 13, a sintered body 520 that is sintered in a shape that repeats unevenness is disposed along the outer surface 514 that repeats unevenness. Alternatively, as in the adsorption module 603 shown in FIG. 14, a sintered body 620 that is sintered so as to form a plane by changing the thickness with respect to the outer surface 514 that repeats unevenness is disposed. May be. FIG. 14 is a top view showing an adsorption module 603 according to another embodiment.

  In the second embodiment, ribs 240a and 240b are formed on the container bodies 210a and 210b. However, the present invention is not limited to this, and a heat exchanger 700 as shown in FIG. 15 may be used. FIG. 15 is a cross-sectional view showing a heat exchanger 700 according to another embodiment. The heat exchanger 700 is configured by laminating a plurality of container bodies 710a and 710b in which the ribs 240a and 240b are not formed. Therefore, the first bottom portion 713a of the first container body 710a has a flat one end surface 714a, and the second bottom portion 713b of the second container body 710b has a flat other end surface 714b. Accordingly, the sintered body 720 disposed between the one end surface 714a of the first container body 710a and the other end surface 714b of the second container body 710b also sinters the space of the rib recess 221 in the second embodiment. The body 720 can be stuffed. In addition, the heat exchanger 700 is formed by laminating the first container body 710a and the second container body 710b with the one end surface 714a of the first container body 710a and the other end surface 714b of the second container body 710b outside, and the adsorption module 703. However, fins 740 are disposed between the adsorption modules 703. The fins 740 are brazed to the bottoms 713a and 713b of the container bodies 710a and 710b, respectively, and the expansion of the second fluid flow path due to the differential pressure between the first fluid flow path and the second fluid flow path. Deformation can be suppressed.

  In the third embodiment, the bottom of the concave portion 312a of the first plate member 310a is formed larger in the left-right direction than the tip of the convex portion 313a, and the bottom of the concave portion 312b of the second plate member 310b is the convex portion 313b. It has the core part 302 formed smaller in the left-right direction than the tip part. However, the present invention is not limited to this, and as shown in FIG. 16, the core portion 802 is configured by stacking a plurality of suction modules 803 formed by brazing and joining plate members 810a and 810b. May be. FIG. 16 is a partially enlarged cross-sectional view showing a cross section of the core portion 802 in another embodiment. As for plate member 310a, 310b, the bottom part of recessed part 312a, 312b and the front-end | tip part of convex part 313a, 313b are formed in the left-right direction with the same length. Moreover, each recessed part 312a, 312b and each convex part 313, 313b are formed in the shape which spreads in the left-right direction as it goes to a dent direction and a protrusion direction. A sintered body 820 is disposed on the bottom side in the concave portion 312a of the first plate member 810a and on the tip side in the convex portion 313b of the second plate member 810b. A first flow path 880 that is a flow passage 881 is disposed on the opening side inside the concave portion 312a of the first plate member 810a and the convex portion 313b of the second plate member 810b. Further, the second flow path 890 is sealed over the entire circumference in the cross section in the flow direction of the second fluid by the inner surface of the convex portion 813a of the first plate member 810a and the tip surface of the convex portion 813b of the second plate member 810b. Has been formed. On the other hand, the second flow path 890 is formed to be sealed over the entire circumference in the cross section in the flow direction of the second fluid by the inner surface of the recess 812b of the second plate member 810b and the bottom surface of the recess 812a of the first plate member 810a. Has been. Moreover, as shown in FIG. 17, the core part 902 formed by laminating only a plurality of first plate members 810a and brazing them may be used. FIG. 17 is a partially enlarged cross-sectional view showing a cross section of the core portion 902 in another embodiment. The heat exchanger having the core portion 902 can be configured with only one plate member 810a.

  In the third embodiment, the heat exchanger 300 includes the first plate member 310a and the second plate member 310b. However, the present invention is not limited to this. For example, the heat exchanger includes a first plate member having a shape in which the joint portion extends to both sides in the stacking direction, and a first plate member that is turned upside down. You may be comprised by mutually laminating | stacking alternately. In this case, the heat exchanger can be configured without having the second plate member 310b as in the third embodiment.

  In each of the above embodiments, cooling water for cooling an internal combustion engine (not shown) is used as the second fluid. However, the present invention is not limited to this, and any fluid can be used as a heat source. Good.

  Moreover, in the said 1st Embodiment, although the board member 110 is circular, it may be formed in the rectangle, for example.

  Moreover, in each said embodiment, although the plate members 110 and 310 and the container body 210 are using copper, what is necessary is just a heat-conductive member.

  In each of the above embodiments, silica gel is used as the adsorbent. However, for example, zeolite may be used.

  Moreover, in each said embodiment, although the 1st flow path 180,280,380 has the distribution | circulation channel | paths 181,281,381, the distribution channel | path may be filled with the sintered compact. In this case, the first fluid flows through the gaps in the sintered body.

  In the first and second embodiments, the flow pipes 150 and 250, the inflow pipes 160 and 260, and the outflow pipes 170 and 270 are arranged to extend in the same direction with respect to the heat exchange units 101 and 201, respectively. However, they may be arranged so as to extend in the other direction instead of the same direction.

  101, 201, 301 ... heat exchange part, 102, 202, 302, 802, 902 ... core part, 102, 203, 303, 503, 603, 703, 803 ... adsorption module, 110, 410, 510 ... plate member, 111 , 211a, 211b, 311a, 311b ... Junction, 112, 312a, 312b, 812a, 812b ... Recess, 113, 213a, 213b, 713a, 713b ... Bottom, 114, 214a, 214b, 314a, 314b, 714a, 714b ... First surface, 120, 220, 320, 520, 620, 720, 820 ... sintered body, 140, 740 ... fins, 180, 280, 380, 880 ... first flow path, 181, 281, 381, 881 ... distribution Passage, 190, 290, 390, 890 ... second flow path, 240a, 240b ... rib, 13a, 313b, 813a, 813b ... the convex portion.

Claims (11)

A heat exchanger having a core portion in which a plurality of metal plate members are laminated,
Between the stacked plate members, a first flow path through which a first fluid flows and a plurality of second flow paths through which a second fluid having a pressure higher than that of the first fluid flow are alternately formed. And
A mixed powder of a metal powder and an adsorbent that are pressure-filled from the laminating direction of the plate member is sintered on the first plate surface on the first flow path side of the plate member, and the first A sintered body that adsorbs or desorbs fluid is joined,
The heat exchanger, wherein the outer peripheral edge of each of the second flow paths is sealed over the entire circumference.   2. The heat exchanger according to claim 1, wherein joint portions formed on an outer peripheral edge portion of the second plate surface of the plate member on the second flow path side are joined to each other. A recess is formed on the inner peripheral side of the joint, and the surface on the outer side of the recess is the first plate surface,
The two plate members are joined to the joining portion to constitute an adsorption module in which the second flow path is formed, and the plurality of adsorption modules are stacked. Item 3. The heat exchanger according to Item 2.   Among the stacked adsorption modules, a flow passage through which the first fluid flows is formed between the sintered bodies arranged on the first plate surfaces of the adjacent adsorption modules. The heat exchanger according to claim 3, wherein   5. The heat exchanger according to claim 3, wherein the adsorption module includes fins arranged inside the adsorption module in the second flow path. The plate member includes a first container body having the first surface as an inner surface of the bottom portion, and a second container body having the first surface as an outer surface of the bottom portion,
The first container body has a first joint portion extending from the entire circumference of the outer periphery of the bottom portion of the first container body toward one end side in the stacking direction of the plate member,
The second container body has a second joint portion extending from the entire circumference of the outer periphery of the bottom portion of the second container body toward one end side in the stacking direction of the plate member,
The first container body and the second container body are joined by bringing the joint portions into contact with each other, thereby sealing the second flow path over the entire circumference in the cross section in the flow direction of the second fluid. The heat exchanger according to claim 1, wherein: An adsorption module in which the second flow path is formed is configured by bringing the first container body and the second container body into contact with each joint.
The heat exchanger according to claim 6, wherein a plurality of the adsorption modules are stacked to sandwich the sintered body disposed on the first surface to constitute the core portion. Each bottom of the first container body and the second container body is provided with ribs that protrude with the first surface outward,
The heat exchanger according to claim 6 or 7, wherein a plurality of the modules are stacked with the ribs in contact with each other.   The heat exchanger according to claim 8, wherein a groove-shaped flow passage through which the first fluid flows is formed in the sintered body.   The heat exchanger according to claim 9, wherein the flow passage is formed in a shape surrounding the rib over the entire circumference. The plate member has recesses recessed in the stacking direction of the plate members and protruding projections formed alternately and continuously.
The plurality of plate members are joined by bringing the tip surface of the convex portion into contact with the bottom surface of the concave portion of the plate member located on the tip side of the convex portion, and the bottom surface of the concave portion and the concave portion The plate member positioned on the bottom surface side of the plate member is brought into contact with and joined to the front end surface of the convex portion to seal the entire circumference in the cross section in the flow direction of the second fluid. The heat exchanger according to claim 1.

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