CN211953849U

CN211953849U - Tube nest soaking type cooling system

Info

Publication number: CN211953849U
Application number: CN201922230958.0U
Authority: CN
Inventors: 李国斌
Original assignee: Hanrun United High Tech Development Beijing Co ltd
Current assignee: Hanrun United High Tech Development Beijing Co ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-11-17
Anticipated expiration: 2029-12-13

Abstract

The utility model discloses a tubular immersed cooling system, which comprises a tubular immersed condenser, a cooling circulating pump, a sprayer, a water distributor, a fan, a cooling packing layer and a cooling water tank; the shell-and-tube immersed condenser is immersed in cooling water in the cooling water tank, and the water distributor and the cooling circulating pump are arranged at the bottom in the cooling water tank; the sprayer is positioned above the cooling filler layer and sprays cooling water to the surface of the cooling filler layer; the cooling filler is arranged between the sprayer and the tube nest immersion condenser; the fan is arranged above the sprayer and discharges the latent heat of vaporization of the saturated vapor vaporized in the cooling filler layer and the cooling water tank to the outdoor atmosphere. The utility model has the advantages of can reduce the cooling water velocity of flow, extension cooling water and refrigerant heat transfer time, improve the cooling water and go out the water temperature, increase evaporative cooling heat radiating area, improve the latent heat of vaporization heat dissipation capacity and the easy abluent of cooling water, reach the purpose that reduces the refrigerant temperature, improves cooling tube cooling heat exchange efficiency.

Description

Tube nest soaking type cooling system

Technical Field

The utility model relates to an air conditioning equipment field especially relates to a tubulation soaks formula cooling system.

Background

The shell-and-tube condenser or the sleeve-type condenser is generally adopted in the field of refrigeration and air conditioning, and has the characteristics of small heat exchange volume, high heat exchange efficiency, mature technology and low manufacturing cost, so that the shell-and-tube condenser or the sleeve-type condenser is widely applied to an air conditioner host as a mainstream accessory. However, the shell-and-tube condenser or the double-tube condenser has the following problems: 1. scale is not easy to clean: because the heat exchange between the refrigerant and the secondary refrigerant (water) is completed in the closed shell tube, the scale in the shell tube must be cleaned after the shell tube condenser is disassembled in a shutdown state. The problems of high maintenance difficulty, large workload and frequent maintenance are caused, and the production is influenced. 2. The amount of heat required per kilogram of water at saturation temperature to become saturated steam at a given pressure is called the latent heat of vaporization, in kj/kg. The saturation temperature of water is increased along with the increase of the pressure, the kinetic energy of water molecules is correspondingly increased, less heat is obtained from the outside, and the water molecules can have energy which is separated from the attractive force between adjacent water molecules, so that the latent heat of vaporization is reduced along with the increase of the pressure. A closed shell and tube heat exchanger or a double tube heat exchanger therefore has a lower evaporation capacity than an open heat exchanger. 3. The cooling pump has high power consumption: because the shell-and-tube condenser or the sleeve-type condenser has small integral volume and limited heat exchange area in the shell, if the heat exchange quantity is increased, the circulation quantity of cooling water flowing through the surface of the heat exchange body in the tube in unit time must be increased, and then the flow speed in the cooling water tube is increased. Since the friction in the pipe is proportional to the square of the flow velocity, an increase in the circulating power requires a higher-power cooling pump, thereby increasing the power consumption.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a tubulation soaks formula cooling system, have and can reduce the cooling water velocity of flow, extension cooling water and refrigerant heat transfer time, improve the cooling water and go out the water temperature, increase evaporative cooling heat radiating area, improve the latent heat of vaporization heat dissipation capacity and the easy abluent advantage of cooling water, reach the purpose that reduces the refrigerant temperature, improves cooling tube cooling heat exchange efficiency.

In order to solve the technical problem, the utility model discloses a technical scheme does:

a tubular immersed cooling system comprises a tubular immersed condenser, a cooling circulating pump, a sprayer, a water distributor, a fan, a cooling packing layer and a cooling water tank; the shell-and-tube immersed condenser is immersed in cooling water in the cooling water tank, and the water distributor and the cooling circulating pump are arranged at the bottom in the cooling water tank; the sprayer is positioned above the cooling filler layer and sprays cooling water to the surface of the cooling filler layer; the cooling filler is arranged between the sprayer and the tubular immersion condenser, so that the contact area of cooling water and air is increased, the temperature of the cooling water is further reduced, and the cooling water cooled by the cooling filler layer uniformly drops on the water surface of the cooling water tank; the fan is arranged above the sprayer and discharges the latent heat of vaporization of the saturated vapor vaporized in the cooling filler layer and the cooling water tank to the outdoor atmosphere;

the tubular immersed condenser comprises a refrigerant collecting box, U-shaped refrigerant tubular columns, a support, a baffle plate, a refrigerant inlet pipe and a refrigerant outlet pipe, wherein the refrigerant collecting box consists of a bottom cover, a top cover and upper and lower cavity isolation grids, the length and width of the bottom cover and the top cover are mutually matched, flange plates with the same size are arranged on the outer sides of the bottom cover and the top cover, a plurality of screw holes with matched size and position are arranged on the flange plates, a plurality of tubular holes are arranged in the middle of the bottom cover, the middle protruding part of the top cover is a box-shaped end cover, and the top cover and the bottom cover penetrate through the screw holes through bolts to be screwed and fastened together to form a refrigerant collecting cavity; the upper and lower cavity isolation grids are vertically fixed in the end cover along the length direction of the bottom cover and the top cover, corresponding upper and lower cavity isolation grooves are formed in the middle of the bottom cover, and the upper and lower cavity isolation grids are inserted into the upper and lower cavity isolation grooves to divide the refrigerant collecting box into a refrigerant upper cavity and a refrigerant lower cavity which are respectively sealed; a collecting tank refrigerant inlet and a collecting tank refrigerant outlet are respectively arranged above the left side and below the right side of the end cover; the refrigerant inlet pipe extends to the middle part of the refrigerant upper cavity through the refrigerant inlet of the collecting box, so that the refrigerant is uniformly distributed in the U-shaped refrigerant array pipe, and the full condensation liquefaction effect is achieved; the refrigerant outlet pipe is connected with a refrigerant outlet of the collecting box positioned at the bottom of the lower cavity of the refrigerant, so that the liquid state of the refrigerant can flow out conveniently, the phenomenon of liquid accumulation is prevented, and the utilization efficiency of the refrigerant is improved; the U-shaped refrigerant array pipes are in a plurality of groups, each group comprises a plurality of U-shaped refrigerant array pipes, each U-shaped refrigerant array pipe comprises two straight pipes which are parallel to each other and have consistent lengths and an arc-shaped pipe connected to the tail end of each straight pipe, and the distance between the two straight pipes of each U-shaped refrigerant array pipe is different and gradually increased; one end of the straight pipe, which is far away from the arc-shaped pipe, is vertically connected with two longitudinally symmetrically arranged tube array holes on the bottom cover through threads, and each group of U-shaped refrigerant tube arrays are positioned in a longitudinal plane and are parallel to planes of the other groups of U-shaped refrigerant tube arrays; the support comprises a pore plate, a support plate and a connecting plate, wherein the pore plate is a plurality of plates arranged in parallel with the bottom cover, the length and width of the pore plate are matched with those of the bottom cover, and the lower end of the pore plate is provided with a fixed upright post; the outer side of the pore plate is provided with an outer edge with the same size as the flange plate of the bottom cover, the middle of the pore plate is provided with a tube array fixing hole with the same size and position as the tube array hole, and the U-shaped refrigerant tube array penetrates through the pore plate; a supporting plate vertically connected with the pore plates is arranged between the pore plates to play a role in supporting and fixing; the connecting plate is arranged between the bottom cover and the nearest pore plate and plays a role in connection and fixation; the baffle plate is a flat plate with an S-shaped side section and comprises an upper section, a lower section, a concave part and a convex part, the concave part and the convex part are in smooth transition to form an S-wave shape, a plurality of baffle plate array tube holes matched with the U-shaped refrigerant array tubes in size and position are uniformly arranged in the middle of the baffle plate, and the baffle plate is coupled with a plurality of groups of U-shaped refrigerant array tubes through the baffle plate array tube holes to form a compact tube plate structure; the cross section of the side surface of the baffle plate is arranged in an S-shaped wave form from top to bottom, so that water in the same temperature layer in the cooling water tank flows vertically downwards, the detention time of the water in the tube array area is prolonged, and the effects of uniform heat exchange and sufficient heat exchange are achieved.

The tube array immersion condenser can be replaced by a second tube array immersion condenser (or called a collecting tube immersion condenser), and comprises a U-shaped refrigerant tube array, a support, a baffle plate, a refrigerant inlet tube, a refrigerant outlet tube, a refrigerant upper collecting tube and a refrigerant lower collecting tube, wherein the support comprises a pore plate and a support plate, the pore plate is a plurality of plates arranged in parallel, and the lower end of the pore plate is provided with a fixed upright post; a tube array fixing hole with the same size and position as the U-shaped refrigerant tube array is formed in the middle of the pore plate, and the U-shaped refrigerant tube array penetrates through the hole plate; a supporting plate vertically connected with the pore plates is arranged between the pore plates to play a role in supporting and fixing; the refrigerant upper collecting pipe and the refrigerant lower collecting pipe are respectively arranged at the upper end and the lower end in front of the foremost pore plate along the length horizontal direction, the left end of the refrigerant upper collecting pipe is communicated with the refrigerant inlet pipe, and the right end of the refrigerant lower collecting pipe is communicated with the refrigerant outlet pipe; the U-shaped refrigerant array pipes are divided into a plurality of groups, each group comprises a plurality of pipes, one end of each U-shaped refrigerant array pipe is led out from a certain position on the refrigerant in the length direction of the header, penetrates through a group of corresponding array pipe fixing holes on a plurality of pore plates, enters the inside of the bracket in a straight pipe form, the tail end of each U-shaped refrigerant array pipe is bent into an arc-shaped pipe, and then penetrates through another group of array pipe fixing holes on the pore plates backwards in another straight pipe form, and the other end after being led out is communicated with a corresponding position on the refrigerant in the length direction of the header; the distance between two sections of straight pipes of each U-shaped refrigerant array pipe is different and gradually increased; each group of U-shaped refrigerant array tubes are positioned in a longitudinal plane and are parallel to the planes of the U-shaped refrigerant array tubes of other groups; the baffle plate is a flat plate with an S-shaped side section and comprises an upper section, a lower section, a concave part and a convex part, the concave part and the convex part are in smooth transition to form an S-wave shape, a plurality of baffle plate array tube holes matched with the U-shaped refrigerant array tubes in size and position are uniformly arranged in the middle of the baffle plate, and the baffle plate is coupled with a plurality of groups of U-shaped refrigerant array tubes through the baffle plate array tube holes to form a compact tube plate structure; the cross section of the side surface of the baffle plate is arranged in an S-shaped wave form from top to bottom, so that water in the same temperature layer in the cooling water tank flows vertically downwards, the detention time of the water in the tube array area is prolonged, and the effects of uniform heat exchange and sufficient heat exchange are achieved. Compared with the tube array immersion type condenser, the second tube array immersion type water-cooled condenser omits a refrigerant collecting box and a connecting plate in the refrigerant collecting box and the bracket, replaces the refrigerant collecting box by the refrigerant upper collecting tube and the refrigerant lower collecting tube, and has the characteristics of simple structure and low manufacturing cost.

Preferably, the water distributor adopts an H-shaped same-pass multi-stage water distributor and comprises a water distributor header pipe, a multi-stage water distribution pipe and a plurality of water distribution heads which are communicated with each other, wherein each stage of lower water distribution pipe is vertically connected with the stage of upper water distribution pipe to form a multi-stage H shape, and the plurality of water distribution heads are distributed at two ends of the last stage of water distribution pipe, so that the water distribution heads are finally arranged on the same horizontal plane and are arranged at equal intervals, and therefore, a uniform water distribution head array is formed; the other end of the water distributor main pipe is communicated with a cooling circulating pump, and cooling water heated by heat exchange in the cooling water tank enters the multistage water distribution pipe and the water distributor main pipe through the uniformly distributed water distribution heads, and finally enters the cooling pump and the sprayer through the cooling pump guide pipe to enter the next cooling circulation.

The H-shaped same-pass multistage water distributor can enable the low-temperature cooling water cooled on the surface of the cooling water tank to move downwards along the vertical direction on the same horizontal plane, ensure that the low-temperature cooling water exchanges heat with the refrigerant tubes layer by layer downwards, and gradually increase the temperature of the cooling water as the refrigerants in the tubes are cooled. The cooling water after temperature rise can effectively prevent disordered heat exchange between the cooling water and the refrigerant tubes through the arrangement of the H-shaped same-pass multistage water distributor, and ensures that the low-temperature cooling water vertically flows through each layer of tubes in a layered manner on the same horizontal plane, thereby improving the cooling effect of the cooling water and the cooling efficiency of the refrigerant. According to the specific heat capacity of the temperature difference C of the cross section area rho density delta T of the flow velocity VVx S; the cross-sectional area of V velocity of flow S is the definite value, and rho density, C specific heat capacity are the constants, because the cross-sectional area of open cooling water tank is hundreds of times of cooling circulation pipe, lead to cooling water velocity of flow V velocity of flow to reduce, and then cooling water detention water tank time extension.

The tube array immersion condenser in the form can ensure that the refrigerant in the U-shaped refrigerant tube array can fully exchange heat with the cooling water in the cooling water tank, and can also ensure that the refrigerant exchanges heat with the cooling water to generate part of latent heat of vaporization to be released through the water surface of the cooling water tank, thereby achieving the effect which cannot be achieved by a shell-and-tube heat exchanger, improving the heat exchange quantity of unit water by using the latent heat of vaporization of water, and further ensuring that the heat exchange efficiency is higher than that of a shell-and-tube heat exchanger; and the tubular immersed condenser is more convenient to clean and maintain.

Preferably, the baffle plate can be made of a metal material or a nonmetal material.

Preferably, the bracket and the refrigerant confluence box are welded by carbon steel and then are subjected to hot galvanizing, so that the aim of preventing and delaying oxidation in a high-temperature and high-humidity environment is fulfilled.

Preferably, the U-shaped refrigerant array tube is made of an internal thread copper tube with a tube wall of 8-15 microns and a diameter of 10-15mm or other metal materials such as titanium alloy, aluminum alloy, stainless steel and the like; the two sections of straight pipes are horizontally arranged in parallel, and the distance between the two sections of straight pipes is 2Cm or more, so that the cleaning is convenient.

Preferably, the bottom cover is made of a carbon steel plate with the thickness of 15mm or more, the bottom cover is punched by a machine tool according to the diameter of the U-shaped refrigerant array pipe and then welded with the support, the whole body is subjected to anti-corrosion coating treatment by a hot galvanizing process, and drilled holes are uniformly distributed up, down, left and right; an anti-seepage cushion layer is attached between the flange plates of the bottom cover and the top cover and is fastened through bolts; the upper and lower cavity grids are inserted into the upper and lower cavity grid grooves of the bottom cover, and anti-seepage elastic rubber strips are attached in the grooves to prevent the refrigerants in the upper refrigerant cavity and the lower refrigerant cavity from mutually permeating.

Preferably, the pore plate is made of a carbon steel plate with the thickness of 10mm or more, and is subjected to anti-corrosion coating treatment by a hot galvanizing process after being punched by a machine tool according to the diameter of the U-shaped refrigerant array pipe and welded with the bracket.

Preferably, the bolts are carbon steel hot-dip galvanized bolts with the diameter of 8mm or more.

Preferably, the water distributor adopts an H-shaped same-path multi-stage water distributor, and can adopt galvanized steel pipes, PUC pipes, PE and other metal pipes, plastic pipes and the like.

Has the advantages that: the utility model adopts the tube type heat exchanger, the U-shaped refrigerant tube nest is exposed and soaked in the cooling water tank, the open structure avoids the existence of high temperature and high pressure state in the tube pass of the traditional shell and tube type condenser, reduces the chance of scaling, and avoids the efficiency reduction caused by scaling of the cooling efficiency; meanwhile, friction resistance in the shell side is avoided, so that the power of the cooling circulating pump is smaller, and more energy is saved; under the condition that the flow rate of cooling water is constant, the cross section area of the cooling water tank is hundreds of times of that of a cooling circulating pipe of the shell-and-tube heat exchanger, so that the flow speed of the cooling water flowing through the surface of the refrigerant array pipe is reduced by hundreds of times, the cooling water and the refrigerant in the refrigerant array pipe can be subjected to sufficient heat exchange, and the cooling efficiency is improved; the surface of the open cooling water tank enables supersaturated water vapor formed by heat exchange between the refrigerant and the cooling water to be fully released, latent heat consumption of the cooling water is increased, and compared with a traditional shell-and-tube condenser, the cooling water has a higher cooling effect than the water and the refrigerant in a heat transfer mode; the condenser is easy to clean, convenient to maintain, low in use cost, capable of being cleaned on line without stopping, and free of influence on production. The specific principle is as follows:

1. the problem of traditional shell and tube formula or bushing type condenser incrustation scale difficult clearance is solved: this patent has adopted open condenser, exposes traditional shell and tube condenser inner tube completely in open water tank, adopts the winding mode, makes intraductal refrigerant can with the abundant heat transfer of water tank internal cooling water, so the incrustation scale clearance of being convenient for of open water tank, and can guarantee to go on under the non-stop state.

2. The power consumption of the cooling pump is reduced: the open type cooling mode is adopted, the shell pass of the traditional shell-and-tube heat exchanger is omitted, the resistance of fluid is not generated, the resistance of the heat exchanger to water can be completely overcome by utilizing the gravity flow of cooling water, and compared with a shell-and-tube (sleeve) heat exchanger with the same heat exchange power, the power consumption of a cooling circulating pump can be reduced, so that the purpose of energy conservation is achieved.

3. The cooling water utilization rate is improved: the heat exchange between the cooling water and the refrigerant is two parts of Qf (Q1 + Q2), wherein the part Q1 is a water-refrigerant heat exchange part, the heat energy of the refrigerant is directly transferred to the cooling water, and the absorbed heat is contained in the cooling water in a sensible heat manner; and the Q2 is a part of latent heat of vaporization vaporized into saturated water vapor, and the heat energy of the refrigerant is diffused into the atmosphere through an exhaust fan in the mode of latent heat of vaporization of cooling water. The vaporization latent heat value is reduced along with the rise of the pressure, the pressure difference between the inlet and the outlet of the shell-and-tube heat exchanger is increased under the high flow rate state of the cooling water, and the pressure in the shell-and-tube heat exchanger is naturally increased, so the Q2 is lower, the heat exchange between the cooling water and the refrigerant is carried out under normal pressure by adopting the method of the patent, the heat exchange pressure is greatly reduced compared with that of the shell-and-tube heat exchanger, so the Q2 is larger, namely, the vaporization amount of the cooling water is increased. If Qf is constant, the amount of evaporation of the cooling water Q2 increases, and the cooling water Q1 decreases. Thereby enhancing the cooling effect of the cooling water. When the cooling water circulation volume is a fixed value, more heat can be taken away due to the reduction of pressure and the increase of vaporization volume, so that the temperature of the refrigerant is lower, the aim of improving the supercooling degree of the refrigerant is fulfilled, and the refrigeration efficiency is improved.

4. The heat release Q of the refrigerant and the heat absorption Q of the cooling water are an energy transfer process, and the physical formula of the process is as follows according to the law of energy conservation: q is put or Q is sucked; wherein Q is the draw velocity vs cross sectional area ρ density Δ T temperature difference C specific heat capacity; the cross-sectional area of V velocity of flow S is the definite value, and rho density, C specific heat capacity are the constants, because the increase of open water tank cross-sectional area S cross-sectional area, lead to cooling water velocity of flow V velocity of flow to reduce, and then cooling water detention water tank time extension. When the temperature difference between the cooling water and the air is increased, namely the temperature pressure between the cooling water and the air is increased, the heat transfer efficiency of the cooling water to the air of the surrounding environment is improved, the heat exchange quantity of the cooling water and the air through the cooling tower is increased, T2 (the water temperature of the water outlet tank) -T1 (the water temperature of the water inlet tank) is increased, namely the delta T temperature difference is increased. From the above formula, the Q-suction is increased, i.e., the open tank can obtain a higher cooling effect. The heat transfer efficiency is not a proportion of the total heat transfer amount in the general sense of the effective heat transfer amount, and it should be understood that the heat transfer power is high, that is, the larger the temperature and pressure is, the larger the heat transfer amount per unit time is, and the irreversible loss and the heat transfer direction referred to by the heat transfer efficiency are different. For example: when water is boiled in the furnace, the increase of the heat transfer efficiency when the temperature difference is large is the heat transfer to the kettle, and the irreversible loss is the increase of the heat transfer efficiency to the air of the surrounding environment, namely the increase of the irreversible loss, and is also the result of the increase of the heat transfer efficiency.

Drawings

Fig. 1 is a schematic structural view of the tube nest immersion type cooling system of the present invention.

Fig. 2 is an integrally assembled side view of the shell and tube submerged condenser of the present invention.

Fig. 3 is an assembled side view of the tube array immersion condenser of the present invention (tubes and baffles not shown).

Fig. 4 is an assembled top view of the tube array immersion condenser of the present invention (tubes and baffles not shown).

Fig. 5 is a front view of the perforated plate of the shell and tube condenser of the present invention.

Fig. 6 is a front view of the bottom cover of the shell and tube condenser of the present invention.

Fig. 7 is a front view of the top cover of the shell and tube submerged condenser of the present invention.

Fig. 8 is a sectional inside view of the top cover of the shell and tube condenser of the present invention.

Fig. 9 is a plan view of the top cover of the shell and tube submerged condenser of the present invention.

Fig. 10 is a side view of the top cover of the shell and tube submerged condenser of the present invention.

Fig. 11 is a side cross-sectional view of the top cover of the shell and tube submerged condenser of the present invention.

Fig. 12 is a front view of a second shell and tube submerged condenser (header shell and tube submerged condenser) according to the present invention.

Fig. 13 is a side view of a second shell and tube submerged condenser (header shell and tube submerged condenser) in the utility model (the shell and tube and the baffle plate on the back surface of the orifice plate are not shown).

Fig. 14 is a schematic view of the structure of the H-shaped same-pass multi-stage water distributor in the present invention.

Fig. 15 is a partial front view of a baffle plate in the present invention.

Fig. 16 is a side view of a baffle plate in the present invention.

Fig. 17 is a partial top view of a baffle plate in the present invention.

Wherein: r3, a tube nest immersion condenser; 30. a refrigerant collecting box; 31. a refrigerant inlet pipe; 32. a refrigerant outlet pipe; 31a, a refrigerant upper header; 32a, a refrigerant lower header; 33. a support; 34. a U-shaped refrigerant array pipe; 341. a straight pipe; 342. an arc tube; 35. a baffle plate; 30a, a bottom cover; 30b, a top cover; 30c, upper and lower cavity isolation gates; 30d, upper and lower cavity isolation grooves; 300. a flange plate; 301. a screw hole; 302. tube arraying holes; 303. an end cap; 304. a refrigerant upper cavity; 305. a refrigerant lower cavity; 306. a collecting tank refrigerant inlet; 307. a collecting tank refrigerant outlet; 308. a bolt; 330. an orifice plate; 331. a support plate; 332. a connecting plate; 3301. fixing the upright post; 3302. outside; 3303. tube array fixing holes; 35. a baffle plate; 3501. an upper cross section; 3502. a lower cross section; 3503. a recess; 3504. a convex portion; 3505. baffle array tube holes; c1, cooling circulation pump; c2, a sprayer; c3, a water distributor; c4, a fan; c5, cooling the filler layer; c6, a cooling water tank; c300, a water distributor main pipe; c301, a first-stage water distribution pipe; c302, secondary water distribution pipes; c303, a three-level water distribution pipe; c304, a four-stage water diversion pipe; c305, a five-stage water distribution pipe; c306, a six-stage water pipe; c307, a water distribution head.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, a tubular immersed cooling system comprises a tubular immersed condenser R3, a cooling circulating pump C1, a sprayer C2, a water distributor C3, a fan C4, a cooling filler layer C5 and a cooling water tank C6; the shell and tube immersed condenser R3 is immersed in the cooling water tank C6, and the water distributor C3 and the cooling circulating pump C1 are arranged at the bottom of the cooling water tank C6; the sprayer C2 is positioned above the cooling filler layer C5 and sprays cooling water to the surface of the cooling filler layer C5; the cooling filler C5 is arranged between the sprayer C2 and the tubular immersion condenser R3, the contact area of cooling water and air is increased, the temperature of the cooling water is further reduced, and the cooling water cooled by the cooling filler layer C5 is uniformly dropped on the water surface of the cooling water tank C6; the fan C4 is arranged above the sprayer C2 and discharges the latent heat of vaporization of the saturated water vapor vaporized in the cooling filler layer C5 and the cooling water tank C6 to the outdoor atmosphere.

As shown in fig. 2 to 11, the tubular condenser R3 includes a refrigerant collecting box 30, a U-shaped refrigerant tubular array 34, a bracket 33, a baffle plate 35, a refrigerant inlet tube 31, and a refrigerant outlet tube 32, where the refrigerant collecting box 30 is composed of a bottom cover 30a, a top cover 30b, and an upper and lower cavity isolation grid 30c, the bottom cover 30a and the top cover 30b have length and width dimensions matching with each other, and are both provided with flange plates 300 of the same dimension on the outer sides, the flange plates 300 are provided with a plurality of screw holes 301 with matching dimensions and positions, the bottom cover 30a is provided with a plurality of tubular holes 302 in the middle, the top cover 30b has a box-shaped end cover 303 in the middle, and the top cover 30b and the bottom cover 30a are screwed and fastened together by passing through the screw holes 301 through bolts to form a refrigerant collecting cavity; the upper and lower cavity isolation grids 30c are vertically fixed inside the end cover 303 along the length direction of the bottom cover 30a and the top cover 30b, corresponding upper and lower cavity isolation grooves 30d are formed in the middle of the bottom cover 30a, the upper and lower cavity isolation grids 30c are inserted into the upper and lower cavity isolation grooves 30d, and the refrigerant collecting box 30 is divided into a refrigerant upper cavity 304 and a refrigerant lower cavity 305 which are respectively closed; a collecting tank refrigerant inlet 306 and a collecting tank refrigerant outlet 307 are respectively arranged above the left side and below the right side of the end cover 303; the refrigerant inlet pipe 31 extends to the middle of the refrigerant upper cavity 304 through the refrigerant inlet 306 of the collecting box, so that the refrigerant is uniformly distributed in the U-shaped refrigerant array pipe 34, and the full condensation and liquefaction effects are achieved; the refrigerant outlet pipe 32 is connected with a refrigerant outlet 307 of the collecting tank at the bottom of the refrigerant lower cavity 305, so that the liquid state of the refrigerant can flow out conveniently, the phenomenon of liquid accumulation is prevented, and the utilization efficiency of the refrigerant is improved; the U-shaped refrigerant array pipes 34 are in a plurality of groups, each group comprises a plurality of U-shaped refrigerant array pipes, each U-shaped refrigerant array pipe comprises two sections of straight pipes 341 which are parallel to each other and have the same length and one section of arc-shaped pipe 342 connected to the tail end of each straight pipe, and the distance between the two sections of straight pipes 341 of each U-shaped refrigerant array pipe is different and gradually increased; one end of the two straight pipes 341 far away from the arc pipe 342 is vertically connected with the two longitudinally symmetrically arranged tube array holes 302 on the bottom cover 30a through threads, and each group of U-shaped refrigerant tube arrays 34 is positioned in a longitudinal plane and is parallel to the planes of the U-shaped refrigerant tube arrays 34 of other groups; the bracket 33 comprises a pore plate 330, a support plate 331 and a connecting plate 332, wherein the pore plate 330 is a plurality of plates arranged in parallel with the bottom cover 30a, the length and width of the pore plate 330 are matched with those of the bottom cover 30a, and the lower end of the pore plate is provided with a fixed upright 3301; the outer side of the pore plate 330 is provided with an outer edge 3302 with the same size as the flange plate 300 of the bottom cover 30a, the middle is provided with a tube array fixing hole 3303 with the same size and position as the tube array hole 302, and the U-shaped refrigerant tube array 34 penetrates through the hole; a supporting plate 331 vertically connected with each pore plate 330 is arranged between the pore plates 330 to play a role in supporting and fixing; the connecting plate 332 is disposed between the bottom cover 30a and the nearest hole plate 330, and is used for connecting and fixing.

As shown in fig. 15-17, the baffle 35 is a flat plate with an S-shaped side cross section, and includes an upper cross section 3501, a lower cross section 3502, a concave portion 3503, and a convex portion 3504, the concave portion 3503 and the convex portion 3504 of the flat plate smoothly transition to form an S-wave shape, and a plurality of baffle row tube holes 3505 with sizes and positions matched with the U-shaped refrigerant row tubes 34 are uniformly arranged in the middle of the flat plate, and the baffle 35 is coupled with a plurality of groups of U-shaped refrigerant row tubes 34 through the baffle row tube holes 3505 to form a compact tube plate structure; the cross section of the side surface of the baffle plate 35 is arranged in an S-shaped wave shape from top to bottom, so that water in the same temperature layer in the cooling water tank C6 vertically flows downwards, the detention time of the water in the tube array area is prolonged, and the effects of uniform heat exchange and sufficient heat exchange are achieved.

As shown in fig. 12-13, the tubular condenser R3 can be replaced by a second tubular condenser R3a (or called a collecting tubular condenser), which includes a U-shaped refrigerant tubular column 34, a bracket 33, a baffle 35, a refrigerant inlet tube 31, a refrigerant outlet tube 32, a refrigerant upper collecting tube 31a, and a refrigerant lower collecting tube 32a, wherein the bracket 33 includes a perforated plate 330 and a supporting plate 331, the perforated plate 330 is a plurality of plates arranged in parallel, and the lower end of the perforated plate 330 is provided with a fixed upright post 3301; a tube array fixing hole 3303 with the same size and position as the U-shaped refrigerant tube array 34 is formed in the middle of the pore plate 330, and the U-shaped refrigerant tube array 34 penetrates through the hole; a supporting plate 331 vertically connected with each pore plate 330 is arranged between the pore plates 330 to play a role in supporting and fixing; the refrigerant upper header 31a and the refrigerant lower header 32a are respectively arranged at the upper and lower ends in front of the foremost pore plate 330 along the length horizontal direction, the left end of the refrigerant upper header 31a is communicated with the refrigerant inlet pipe 31, and the right end of the refrigerant lower header 32a is communicated with the refrigerant outlet pipe 32; the U-shaped refrigerant array pipes 34 are in a plurality of groups, each group comprises a plurality of pipes, one end of each U-shaped refrigerant array pipe 34 is led out from a certain position in the length direction of the refrigerant upper header 31a, penetrates through a group of corresponding array pipe fixing holes 3303 on the pore plates 300, enters the support 33 in a straight pipe 341 mode, the tail end of the U-shaped refrigerant array pipe is bent into an arc-shaped pipe 342, penetrates through another group of array pipe fixing holes 3303 on the pore plates 300 backwards in another straight pipe 341 mode, and the other end after being led out is communicated with a corresponding position in the length direction of the refrigerant lower header 32 a; the distance between the two straight pipes 341 of each U-shaped refrigerant array pipe 34 is different and gradually increased; each group of U-shaped refrigerant tubes 34 is positioned in a longitudinal plane and is parallel to the planes of the U-shaped refrigerant tubes 34 of other groups; the baffle 35 is a flat plate with an S-shaped side cross section, and comprises an upper cross section 3501, a lower cross section 3502, a concave part 3503 and a convex part 3504, the concave part 3503 and the convex part 3504 of the flat plate are in smooth transition to form an S-wave shape, a plurality of baffle row tube holes 3505 with the size and the position matched with the U-shaped refrigerant row tubes 34 are uniformly arranged in the middle of the S-wave shape, and the baffle 35 is coupled with a plurality of groups of U-shaped refrigerant row tubes 34 through the baffle row tube holes 3505 to form a compact tube plate structure; the cross section of the side surface of the baffle plate 35 is arranged in an S-shaped wave shape from top to bottom, so that water in the same temperature layer in the cooling water tank C6 vertically flows downwards, the detention time of the water in the tube array area is prolonged, and the effects of uniform heat exchange and sufficient heat exchange are achieved. Compared with the tube array immersion condenser R3, the second tube array immersion condenser R3a omits the refrigerant collecting tank 30 and the connecting plate 332 in the refrigerant collecting tank 30 and the bracket 33, and replaces the refrigerant collecting tank 30 with the refrigerant upper collecting pipe 31a and the refrigerant lower collecting pipe 32a, and has the characteristics of simple structure and low manufacturing cost.

The baffle plate 35 can be made of metal material or nonmetal material; the bracket 33 and the refrigerant header box 30 are welded by carbon steel and then are subjected to hot galvanizing, so that the aim of preventing and delaying oxidation in a high-temperature and high-humidity environment is fulfilled.

The U-shaped refrigerant array pipe 34 is made of an internal thread copper pipe with a pipe wall of 8-15 mu m and a diameter of 10-15mm or other metal materials such as titanium alloy, aluminum alloy, stainless steel and the like; the two straight tubes 341 are horizontally arranged in parallel, and the distance between the two straight tubes is 2Cm or more, so that the cleaning is convenient.

The bottom cover is made of a carbon steel plate with the thickness of 15mm or more, the bottom cover is punched by a machine tool according to the diameter of the U-shaped refrigerant array pipe 34 and then welded with the bracket 33, the whole body is subjected to anti-corrosion coating treatment by a hot galvanizing process, and drilled holes are uniformly distributed up, down, left and right; an anti-leakage cushion layer is attached between the flange plates 300 of the bottom cover 30a and the top cover 30b and is fastened through bolts; the upper and lower cavity grids 30c are inserted into the upper and lower cavity grid grooves 30d of the bottom cover 30a, and an anti-leakage elastic rubber strip is attached in the grooves to prevent the refrigerant of the upper refrigerant cavity 304 and the lower refrigerant cavity 305 from mutually permeating.

The pore plate is made of a carbon steel plate with the thickness of 10mm or more, and is punched by a machine tool according to the diameter of the U-shaped refrigerant array pipe 34, and then is welded with the bracket 33, and then is subjected to hot galvanizing to be subjected to anticorrosion coating treatment.

The bolts 308 are made of carbon steel hot-dip galvanized bolts with the diameter of 8mm or more.

The water distributor C3 adopts an H-shaped same-course multi-stage water distributor, can adopt galvanized steel pipes, PUC pipes, PE and other metal pipes, plastic pipes and the like, and comprises a water distributor header pipe C300, a multi-stage water distribution pipe and a plurality of water distribution heads C307 which are mutually communicated, wherein the lower-stage water distribution pipe of each stage is vertically connected with the upper-stage water distribution pipe to form a multi-stage H shape, the water distribution heads are distributed at two ends of the last-stage water distribution pipe, and finally, the water distribution heads C307 are displayed on the same horizontal plane, and each adjacent water distribution head C307 is arranged at equal intervals, thereby forming an even water distribution head array; the other end of the water distributor main pipe C300 is communicated with a cooling circulating pump C1, cooling water subjected to heat exchange and temperature rise in the cooling water tank C6 passes through the uniformly distributed water distribution heads C307, enters the multistage water distribution pipe and the water distributor main pipe C300, and finally enters the cooling circulating pump C1 and the sprayer C2 through the cooling pump guide pipe to enter the next cooling circulation.

In this embodiment, the H-shaped multi-stage water distributor is a 6-stage water distributor, and as shown in fig. 14, includes a water distributor header pipe C300, a first-stage water distribution pipe C301, a second-stage water distribution pipe C302, a third-stage water distribution pipe C303, a fourth-stage water distribution pipe C304, a fifth-stage water distribution pipe C305, a sixth-stage water distribution pipe C306, and a plurality of water distribution heads 307.

The tube array soaking type cooling system in the form can ensure that the refrigerant in the U-shaped refrigerant tube array can fully exchange heat with the cooling water in the cooling water tank, and can also ensure that the heat exchange between the refrigerant and the cooling water generates part of latent heat of vaporization to be released through the water surface of the cooling water tank, thereby achieving the effect which cannot be achieved by a shell-and-tube (sleeve) type heat exchanger, improving the heat exchange quantity of unit water by utilizing the latent heat of vaporization of the water, and further ensuring that the heat exchange efficiency is higher than that of a shell-and-tube (sleeve) type; and the tube array soaking type cooling system is more convenient to clean and maintain.

The working process of the utility model is as follows: high-temperature refrigerant enters the refrigerant collecting box 30 through the refrigerant inlet pipe 31 (or the refrigerant upper header pipe 31a) and enters the U-shaped refrigerant array pipe 34 of the tube array immersion type cooling system, at the moment, the cooling circulating pump C1 is started, low-temperature cooling water in the cooling water tank C6 is conveyed to the sprayer C2 at the top of the cooling filler layer C5 and is sprayed to the outer surface of the cooling filler layer C5 to form a thin water film, under the action of the fan C4, the cooling water on the surface of the cooling filler layer exchanges heat with ambient air glancing over the surface of the cooling filler, the cooling water is cooled and then cooled, the air is discharged into the atmosphere through the fan C4 after being heated, at the moment, the cooling filler has a cooling function and a uniform water distribution function, the cooled cooling water uniformly falls on the upper surface of the whole cooling water tank C6 along the horizontal lower surface of the whole cooling filler layer, and moves downwards under the action of the cooling circulating pump C1 at a lower temperature, due to the action of the H-shaped same-path multi-stage water distributor C3, the cooling water on the upper surface of the cooling water tank C6 moves horizontally, uniformly and vertically downward to exchange heat with the U-shaped refrigerant tubes 34 arranged horizontally in parallel layer by layer, the cooling water absorbs the heat of the refrigerant with higher temperature in the refrigerant tubes to gradually increase the temperature, and the refrigerant flows out through the refrigerant outlet tube 32 (or the refrigerant lower header 32a) of the refrigerant header 30 after being cooled to enter the next refrigerant cycle. The cooling water with higher temperature which sinks horizontally and uniformly passes through all the water distribution heads C307 uniformly distributed in the H-shaped same-course multi-stage water distributor C3, then passes through the water distribution pipes at all stages and the main pipe C300 of the water distributor, enters the cooling circulating pump C1 and enters the next cooling water circulation.

Although the embodiments of the present invention have been described in the specification, these embodiments are only for the purpose of presentation and should not be construed as limiting the scope of the present invention. Various omissions, substitutions, and changes may be made without departing from the spirit and scope of the invention.

Claims

1. A tubular immersed cooling system is characterized by comprising a tubular immersed condenser, a cooling circulating pump, a sprayer, a water distributor, a fan, a cooling packing layer and a cooling water tank; the shell-and-tube immersed condenser is immersed in cooling water in the cooling water tank, and the water distributor and the cooling circulating pump are arranged at the bottom in the cooling water tank; the sprayer is positioned above the cooling filler layer; the cooling filler is arranged between the sprayer and the tube nest immersion condenser; the fan is arranged above the sprayer.

2. The tube array immersion cooling system of claim 1, wherein the tube array immersion condenser comprises a refrigerant collecting box, a U-shaped refrigerant array tube, a support, a baffle plate, a refrigerant inlet tube and a refrigerant outlet tube, the refrigerant collecting box comprises a bottom cover, a top cover and an upper cavity and lower cavity isolation grid, the length and width of the bottom cover and the top cover are matched with each other, flange plates with the same size are arranged on the outer sides of the bottom cover and the top cover, a plurality of screw holes with matched size and position are arranged on the flange plates, a plurality of rows of tube holes are arranged in the middle of the bottom cover, a protruding part in the middle of the top cover is a box-shaped end cover, and the top cover and the bottom cover are screwed and fastened together by passing through the screw holes through; the upper and lower cavity isolation grids are vertically fixed in the end cover along the length direction of the bottom cover and the top cover, corresponding upper and lower cavity isolation grooves are formed in the middle of the bottom cover, and the upper and lower cavity isolation grids are inserted into the upper and lower cavity isolation grooves to divide the refrigerant collecting box into a refrigerant upper cavity and a refrigerant lower cavity which are respectively sealed; a collecting tank refrigerant inlet and a collecting tank refrigerant outlet are respectively arranged above the left side and below the right side of the end cover; the refrigerant inlet pipe extends to the middle part of the refrigerant upper cavity through the refrigerant inlet of the collecting box; the refrigerant outlet pipe is connected with a refrigerant outlet of the collecting box positioned at the bottom of the lower cavity of the refrigerant; the U-shaped refrigerant array pipes are in a plurality of groups, each group comprises a plurality of U-shaped refrigerant array pipes, each U-shaped refrigerant array pipe comprises two straight pipes which are parallel to each other and have consistent lengths and an arc-shaped pipe connected to the tail end of each straight pipe, and the distance between the two straight pipes of each U-shaped refrigerant array pipe is different and gradually increased; one end of the straight pipe, which is far away from the arc-shaped pipe, is vertically connected with two longitudinally symmetrically arranged tube array holes on the bottom cover through threads, and each group of U-shaped refrigerant tube arrays are positioned in a longitudinal plane and are parallel to planes of the other groups of U-shaped refrigerant tube arrays; the support comprises a pore plate, a support plate and a connecting plate, wherein the pore plate is a plurality of plates arranged in parallel with the bottom cover, the length and width of the pore plate are matched with those of the bottom cover, and the lower end of the pore plate is provided with a fixed upright post; the outer side of the pore plate is provided with an outer edge with the same size as the flange plate of the bottom cover, the middle of the pore plate is provided with a tube array fixing hole with the same size and position as the tube array hole, and the U-shaped refrigerant tube array penetrates through the pore plate; a supporting plate vertically connected with the pore plates is arranged between the pore plates; the connecting plate is arranged between the bottom cover and the nearest pore plate; the baffle plate is a flat plate with an S-shaped side section and comprises an upper section, a lower section, a concave part and a convex part, the concave part and the convex part are in smooth transition to form an S-wave shape, a plurality of baffle plate array tube holes matched with the U-shaped refrigerant array tubes in size and position are uniformly formed in the middle of the concave part and the convex part, and the baffle plate is coupled with a plurality of groups of U-shaped refrigerant array tubes through the baffle plate array tube holes to form a compact tube plate structure.

3. The tubular flooded cooling system of claim 2, wherein the tubular flooded condenser is replaced by a second tubular flooded condenser, comprising a U-shaped refrigerant tubular, a support, a baffle plate, a refrigerant inlet tube, a refrigerant outlet tube, an upper refrigerant header, and a lower refrigerant header, wherein the support comprises a perforated plate and a support plate, the perforated plate is a plurality of plates arranged in parallel, and the lower end of the perforated plate is provided with a fixed column; a tube array fixing hole with the same size and position as the U-shaped refrigerant tube array is formed in the middle of the pore plate, and the U-shaped refrigerant tube array penetrates through the hole plate; a supporting plate vertically connected with the pore plates is arranged between the pore plates; the refrigerant upper collecting pipe and the refrigerant lower collecting pipe are respectively arranged at the upper end and the lower end in front of the foremost pore plate along the length horizontal direction, the left end of the refrigerant upper collecting pipe is communicated with the refrigerant inlet pipe, and the right end of the refrigerant lower collecting pipe is communicated with the refrigerant outlet pipe; the U-shaped refrigerant array pipes are divided into a plurality of groups, each group comprises a plurality of pipes, one end of each U-shaped refrigerant array pipe is led out from a certain position on the refrigerant in the length direction of the header, penetrates through a group of corresponding array pipe fixing holes on a plurality of pore plates, enters the inside of the bracket in a straight pipe form, the tail end of each U-shaped refrigerant array pipe is bent into an arc-shaped pipe, and then penetrates through another group of array pipe fixing holes on the pore plates backwards in another straight pipe form, and the other end after being led out is communicated with a corresponding position on the refrigerant in the length direction of the header; the distance between two sections of straight pipes of each U-shaped refrigerant array pipe is different and gradually increased; each group of U-shaped refrigerant array tubes are positioned in a longitudinal plane and are parallel to the planes of the U-shaped refrigerant array tubes of other groups; the baffle plate is a flat plate with an S-shaped side section and comprises an upper section, a lower section, a concave part and a convex part, the concave part and the convex part are in smooth transition to form an S-wave shape, a plurality of baffle plate array tube holes matched with the U-shaped refrigerant array tubes in size and position are uniformly formed in the middle of the concave part and the convex part, and the baffle plate is coupled with a plurality of groups of U-shaped refrigerant array tubes through the baffle plate array tube holes to form a compact tube plate structure.

4. The tubular immersed cooling system according to claim 2 or 3, wherein the water distributor is an H-shaped same-pass multi-stage water distributor, and comprises a water distributor header pipe, a multi-stage water distribution pipe and a plurality of water distribution heads which are communicated with each other, the lower stage water distribution pipe of each stage is vertically connected with the upper stage water distribution pipe to form a multi-stage H-shaped structure, and the plurality of water distribution heads are distributed at two ends of the last stage water distribution pipe to realize that the water distribution heads are on the same horizontal plane and each adjacent water distribution head is arranged at equal intervals; the other end of the water distributor main pipe is communicated with a cooling circulating pump.

5. The column immersion cooling system as claimed in claim 4, wherein the baffles are made of a metallic material or a non-metallic material; the support and the refrigerant header box are welded by carbon steel and then are subjected to hot galvanizing.

6. The tubulation immersion cooling system of claim 4, wherein the U-shaped refrigerant tubulation is an internal thread copper tube with a tube wall of 8-15 μm and a diameter of 10-15mm, or titanium alloy, aluminum alloy or stainless steel; the two sections of straight pipes are horizontally arranged in parallel, and the distance between the two sections of straight pipes is 2Cm or more.

7. The tubular immersed cooling system according to claim 4, wherein the orifice plate is made of a carbon steel plate with a thickness of 10mm or more, and is subjected to hot galvanizing to form an anticorrosive coating after being punched by a machine tool according to the diameter of the U-shaped refrigerant tubular and welded with a bracket.

8. The tubular column immersion cooling system as claimed in claim 4, wherein the H-shaped same-pass multi-stage water distributor is a galvanized steel pipe, a PUC pipe or a PE pipe.

9. The tube array soaking cooling system according to claim 2, wherein the bottom cover is made of a carbon steel plate with the thickness of 15mm or more, the bottom cover is punched by a machine tool according to the diameter of the U-shaped refrigerant tube array and then welded with a support, and then the bottom cover is integrally subjected to hot galvanizing to be subjected to anticorrosive coating treatment, and drilled holes are uniformly distributed up, down, left and right; an anti-seepage cushion layer is attached between the flange plates of the bottom cover and the top cover and is fastened through bolts; the upper and lower cavity grids are inserted into the upper and lower cavity grid grooves of the bottom cover, and anti-seepage elastic rubber strips are attached in the grooves to prevent the refrigerants in the upper refrigerant cavity and the lower refrigerant cavity from mutually permeating.

10. The tube array immersion cooling system as claimed in claim 2, wherein the bolts are carbon steel hot dip galvanized bolts with a diameter of 8mm and above.