CN103644685A

CN103644685A - Heat exchanger and air conditioner with multiple refrigeration systems provided with heat exchanger

Info

Publication number: CN103644685A
Application number: CN201310737754.0A
Authority: CN
Inventors: 高强
Original assignee: Sanhua Hangzhou Micro Channel Heat Exchanger Co Ltd
Current assignee: Sanhua Hangzhou Micro Channel Heat Exchanger Co Ltd
Priority date: 2013-12-26
Filing date: 2013-12-26
Publication date: 2014-03-19

Abstract

The invention discloses a heat exchanger. The heat exchanger comprises first and second groups of refrigerant chambers, heat exchange tubes and fins, wherein the first and second groups of refrigerant chambers respectively extend along the horizontal direction, and refrigerant chambers in the first group correspond to the refrigerant chambers in the second group in a one-to-one manner to form N pairs of refrigerant chambers; the heat exchange tubes extend along the longitudinal direction, and are divided into N groups, wherein the ith group of heat exchange tubes comprise multiple ith heat exchange tubes, the first end of each ith heat exchange tube is communicated with one refrigerant chamber in the ith pair of refrigerant chambers, the second end of each ith heat exchange tube is communicated with the other refrigerant chamber in the ith pair of refrigerant chambers, the heat exchange tubes in any group and the heat exchange tube in the rest groups are alternately arranged, N is a positive integer greater than or equal to 2, and i is a positive integer less than or equal to N; the fins are arranged between the adjacent heat exchange tubes. The heat exchanger disclosed by the invention can be used for an air conditioner, and has the advantages of uniform outlet air temperature, high heat exchange efficiency, compact structure and the like.

Description

Heat exchanger and many refrigeration systems air-conditioning with this heat exchanger

Technical field

The present invention relates to refrigeration technology field, especially relate to a kind of heat exchanger and many refrigeration systems air-conditioning with this heat exchanger.

Background technology

Many refrigeration systems air-conditioning has a plurality of refrigeration systems conventionally, i.e. a plurality of refrigerant circuit systems.Two refrigeration system air-conditionings of take are example, comprise consist of two compressors, two evaporimeters, two condensers and two expansion valves two independently refrigeration systems.

Two evaporimeters of traditional double refrigeration system air-conditioning are arranged in same airduct conventionally, and described two evaporimeters can be configured to two independent evaporimeters that are arranged side by side, or are configured to two parts of single evaporimeter being divided into by dividing plate.

Situation for two two evaporimeters that are arranged side by side, when two evaporimeters move simultaneously, the EAT of second evaporimeter of windward side is lower, heat transfer effect is poor, need larger area to compensate, reduced economy and heat exchange efficiency, and the efficiency of air-conditioning oepration at full load and the efficiency of operation at part load is difficult to balance, and two evaporimeter requisite spaces are large.

For by dividing plate, single evaporimeter being divided into two-part situation, when a refrigeration system is closed, only some participates in heat exchange to evaporimeter, thereby inhomogeneous by the wind-warm syndrome of evaporimeter, causes the local condensation of blower fan.

Summary of the invention

The present invention is intended to solve at least to a certain extent one of above-mentioned technical problem of the prior art.For this reason, one object of the present invention is to propose a kind of heat exchanger, and this heat exchanger can be for air-conditioning, and leaving air temp is even, and heat exchange efficiency is high, and compact conformation.

Another object of the present invention is to propose a kind of many refrigeration systems air-conditioning with above-mentioned heat exchanger.

According to the heat exchanger of the embodiment of the present invention, comprise: first and second groups of refrigerant chamber, described first and second groups of refrigerant chamber extend transversely respectively, and the refrigerant chamber in described first group is corresponding to form N to refrigerant chamber one by one with the refrigerant chamber in described second group; Heat exchanger tube, described heat exchanger tube extends longitudinally, described heat exchanger tube is divided into N group, wherein i group heat exchanger tube comprises a plurality of i heat exchanger tubes, the first end of each i heat exchanger tube is communicated with a refrigerant chamber in refrigerant chamber with i, and the second end of each i heat exchanger tube is communicated with another refrigerant chamber in refrigerant chamber with i, and the heat exchanger tube in arbitrary group and the heat exchanger tube in all the other groups are alternately arranged, N is more than or equal to 2 positive integer, and i is the positive integer that is less than or equal to N; Fin, described fin is located between adjacent described heat exchanger tube.

According to the heat exchanger of the embodiment of the present invention, be applicable to have in the air-conditioning of multisystem, according to the heat exchanger of the embodiment of the present invention, not only can under oepration at full load state, keep higher efficiency, but also greatly improve the efficiency under operation at part load state.

In addition, according to heat exchanger of the present invention, can also there is following additional technical feature:

According to some embodiments of the present invention, heat exchanger comprises first and second groups of headers, and the header in described first group is corresponding to form N to header one by one with the header in described second group; Described first group of header limits described first group of refrigerant chamber correspondingly, and described second group of header limits described second group of refrigerant chamber correspondingly.

According to some embodiments of the present invention, described first group of header comprises the first and the 3rd header, described second group of header comprises the second and the 4th header, and described heat exchanger tube is divided into first group of consisting of a plurality of the first heat exchanger tubes and second group of consisting of a plurality of the second heat exchanger tubes.

According to some embodiments of the present invention, together with described the first header abuts against with described the 3rd header, together with described the second header abuts against with described the 4th header, described the 3rd header and described the 4th header are between described the first header and described the second header, the first end of described the first heat exchanger tube is connected with described the first header through described the 3rd header, and the second end of described the first heat exchanger tube is connected with described the second header through described the 4th header.

According to some embodiments of the present invention, described the first and second heat exchanger tubes are flat tube, described the first heat exchanger tube is divided into the second bending section that the second end of interlude and the first fold curved segment being connected with the first end of the interlude of described the first heat exchanger tube respectively and interlude with described the first heat exchanger tube is connected, and the first and second bending sections of described the first heat exchanger tube are with respect to the interlude bending respectively of described the first heat exchanger tube;

The first end of wherein said the first heat exchanger tube and the second end first reverse then bending with respect to described the first interlude, or the first end of described the first heat exchanger tube is connected with the interlude of described the first heat exchanger tube by first fold bend pipe cover respectively with the second end.

According to some embodiments of the present invention, described the second heat exchanger tube is divided into the second bending section that the second end of interlude and the first fold curved segment being connected with the first end of the interlude of described the second heat exchanger tube respectively and interlude with described the second heat exchanger tube is connected, the first fold curved segment of described the second heat exchanger tube and the second bending section with respect to described the second heat exchanger tube interlude bending respectively;

The first end of wherein said the second heat exchanger tube and the second end first reverse then bending with respect to the interlude of described the second heat exchanger tube, or the first end of described the second heat exchanger tube is connected with the interlude of described the second heat exchanger tube by the second bending pipe box respectively with the second end.

According to some embodiments of the present invention, angle α 1 >=90 degree between any in the first and second bending sections of the interlude of described the first heat exchanger tube and described the first heat exchanger tube, angle α 2 >=90 degree between any in the first and second bending sections of the interlude of described the second heat exchanger tube and described the second heat exchanger tube

According to some embodiments of the present invention, between adjacent two described the first heat exchanger tubes, be furnished with two or more the second heat exchanger tubes.

According to some embodiments of the present invention, described the first header and described the 3rd header layout that is spaced apart from each other, described the first header is provided with along the axially spaced of described the first header and a plurality of the first barrels of being communicated with the inner chamber of described the first header, described the 3rd header is provided with a plurality of the 3rd barrels that are communicated with along the axially spaced of described the 3rd header and with the inner chamber of described the 3rd header, and described the first barrel and described the 3rd barrel are axially alternately arranged along the described first and the 3rd header;

Described the second header and described the 4th header layout that is spaced apart from each other, described the second header is provided with along the axially spaced of described the second header and a plurality of the second barrels of being communicated with the inner chamber of described the second header, described the 4th header is provided with a plurality of the 4th barrels that are communicated with along the axially spaced of described the 4th header and with the inner chamber of described the 4th header, described the second barrel and described the 4th barrel are axially alternately arranged along the described second and the 4th header

The first end of described the first heat exchanger tube is communicated with described the first barrel, the second end of described the first heat exchanger tube is communicated with described the second barrel, the first end of described the second heat exchanger tube is communicated with described the 3rd barrel, and the second end of described the second heat exchanger tube is communicated with described the 4th barrel.

According to some embodiments of the present invention, described heat exchanger comprises the first header and the second header, in described the first header, be provided with the first cross partition, so that the inner chamber of described the first header is separated into the first chamber, the 3rd chamber, the 5th chamber and the 7th chamber, in described the second header, be provided with the second cross partition, so that the inner chamber of described the second header is separated into the second chamber, the 4th chamber, the 6th chamber and the 8th chamber, described heat exchanger tube is divided into first group that a plurality of the first heat exchanger tubes, consists of, by a plurality of the second heat exchanger tubes, formed second group, the 3rd group and the 4th group of being formed by a plurality of the 4th heat exchanger tubes by a plurality of the 3rd heat exchanger tubes, being formed.

According to many refrigeration systems air-conditioning of the embodiment of the present invention, comprise a plurality of refrigeration systems, at least two refrigeration systems in described a plurality of refrigeration systems share at least one heat exchanger, and described heat exchanger is above-mentioned heat exchanger.

Alternatively, described at least one heat exchanger is condenser and/or evaporimeter.

Alternatively, the condenser that a described heat exchanger is a part of refrigeration system in described at least two refrigeration systems and be the evaporimeter of another part refrigeration system in described at least two refrigeration systems.

Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.

Accompanying drawing explanation

Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination obviously and is easily understood becoming the description of embodiment, wherein:

Fig. 1 is according to the schematic diagram of the heat exchanger of first embodiment of the invention;

Fig. 2 is the local enlarged diagram of heat exchanger shown in Fig. 1;

Fig. 3 is according to the schematic diagram of the heat exchanger of second embodiment of the invention;

Fig. 4 is according to the schematic diagram of the heat exchanger of third embodiment of the invention;

Fig. 5 is the front view figure of heat exchanger shown in Fig. 4;

Fig. 6 is the side view of heat exchanger shown in Fig. 4;

Fig. 7 is according to the schematic diagram of the heat exchanger of fourth embodiment of the invention;

Fig. 8 is the local enlarged diagram of heat exchanger shown in Fig. 7;

Fig. 9 is the side view of heat exchanger shown in Fig. 7;

Figure 10 is the top view of heat exchanger shown in Fig. 7;

Figure 11 is according to the schematic diagram of the heat exchanger of fifth embodiment of the invention;

Figure 12 is according to the schematic diagram of the heat exchanger of sixth embodiment of the invention;

Figure 13 is the side view of heat exchanger shown in Figure 12;

Figure 14 is according to the schematic diagram of the heat exchanger of seventh embodiment of the invention;

Figure 15 is according to the schematic diagram of the heat exchanger of eighth embodiment of the invention;

Figure 16 is the cross-sectional schematic of heat exchanger shown in Figure 15;

Figure 17 is according to the schematic diagram of the heat exchanger of ninth embodiment of the invention;

Figure 18 is the side view of heat exchanger shown in Figure 17;

Figure 19 is the top view of heat exchanger shown in Figure 17.

Figure 20 is according to the schematic diagram of many refrigeration systems air-conditioning of the embodiment of the present invention.

The specific embodiment

Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, be intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.

In description of the invention, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of indications such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.

In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, the implication of " a plurality of " is two or more, unless otherwise expressly limited specifically.

In the present invention, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be to be also electrically connected to; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can understand as the case may be above-mentioned term concrete meaning in the present invention.

In the present invention, unless otherwise clearly defined and limited, First Characteristic Second Characteristic it " on " or D score can comprise that the first and second features directly contact, also can comprise that the first and second features are not directly contacts but contact by the other feature between them.And, First Characteristic Second Characteristic " on ", " top " and " above " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " comprise First Characteristic under Second Characteristic and tiltedly, or only represent that First Characteristic level height is less than Second Characteristic.

Below with reference to Fig. 1-Figure 19, describe in detail according to the heat exchanger 100 of the embodiment of the present invention, this heat exchanger 100 is applicable to many refrigeration systems air-conditioning, but is not limited to this, below for convenience, for air-conditioning, be example, heat exchanger 100 can be as evaporimeter and/or the condenser of air-conditioning.

According to embodiment of the present invention heat exchanger 100, can comprise first group of refrigerant chamber and second group of refrigerant chamber, heat exchanger tube and fin 3.

Refrigerant chamber can be limited by header, and the inner space of header can be referred to as refrigerant chamber, and a header inside can only form a refrigerant chamber, and certain header inside also can be formed with a plurality of refrigerant chamber.

First group of refrigerant chamber along horizontal B(for example, left and right directions in Fig. 1) extend, refrigerant chamber in first group is corresponding to form N to refrigerant chamber one by one with the refrigerant chamber in second group, in other words, the quantity of the refrigerant chamber in first group and the quantity of refrigerant chamber in second group are identical and one to one, for example, according to some embodiments of the present invention, first group of refrigerant chamber can have two, three or four refrigerant chamber, second group of refrigerant chamber also has two, three or four refrigerant chamber, it is example that the first group of refrigerant chamber of take has two refrigerant chamber, second group of refrigerant chamber correspondence also has two refrigerant chamber, these two refrigerant chamber of second group of two refrigerant chamber and these of first group are corresponding to form two pairs of refrigerant chamber one by one.

Heat exchanger tube longitudinally A(for example, the above-below direction in Fig. 1) extend, heat exchanger tube is divided into N group, the group number of heat exchanger tube is identical with the logarithm of refrigerant chamber.For example, the logarithm of refrigerant chamber is two pairs, and the group number of heat exchanger tube corresponds to two groups.

Wherein, i group heat exchanger tube comprises that a plurality of i heat exchanger tubes (for example, first group of heat exchanger tube comprises a plurality of the first heat exchanger tubes, second group of heat exchanger tube comprises a plurality of the second heat exchanger tubes), the two ends of each i heat exchanger tube are connected to two refrigerant chamber in refrigerant chamber with i respectively, in other words, the first end of each i heat exchanger tube is communicated with a refrigerant chamber in refrigerant chamber with i, and the second end of each i heat exchanger tube is communicated with another refrigerant chamber in refrigerant chamber with i.Wherein, N is more than or equal to 2 positive integer, and i is the positive integer that is less than or equal to N, in other words, 0 < i≤N, and i and N are integer.Fin 3 is located between adjacent heat exchanger tube.

Thus, i group heat exchanger tube and fin 3 form i core body, and i core body and i form the sub-heat exchanger of i to two refrigerant chamber in refrigerant chamber.Thereby, N group heat exchanger tube and fin form N core body, this N core body forms N sub-heat exchanger with corresponding N to refrigerant chamber respectively, is being provided with according in the air-conditioning system of the heat exchanger of the embodiment of the present invention, can select one or more in this N sub-heat exchanger or all move work.

Wherein, the heat exchanger tube in arbitrary group and the heat exchanger tube in all the other groups are alternately arranged.Here, it should be noted that, " alternately arrange " and should make broad understanding, for example, take heat exchanger tube as four groups be example, the arrangement mode of these four groups of heat exchanger tubes can be: first heat exchanger tube, second heat exchanger tube, the 3rd heat exchanger tube and the 4th heat exchanger tube, by that analogy, thereby form alternately arrangement form, every so individual heat exchange area of sub-heat exchanger and the whole heat exchange area of heat exchanger 100 are roughly the same, have improved the heat exchange area of every sub-heat exchanger.But the present invention is not limited to this.

And for example, take heat exchanger tube as two groups be example, between adjacent two the first heat exchanger tubes, second heat exchanger tube can be set, or between adjacent two the first heat exchanger tubes, a plurality of the second heat exchanger tubes be set; Alternatively, between adjacent two the second heat exchanger tubes, one or more the first heat exchanger tubes can be set.But the present invention is not limited to this.

Thus, due to the heat exchanger tube in each group all with other groups in heat exchanger tube alternately arrange, therefore every individual heat exchange area of sub-heat exchanger and the whole heat exchange area of heat exchanger 100 are roughly the same, therefore heat transfer effect and the efficiency of heat exchanger 100 when operation at part load have been improved, air themperature after heat exchange is simultaneously more even, avoid occurring local condensation phenomenon, and compact according to the heat exchanger structure of the embodiment of the present invention, save space.

In brief, according to the heat exchanger of the embodiment of the present invention, be applicable to have the air-conditioning of multisystem, according to the heat exchanger of the embodiment of the present invention, not only can under oepration at full load state, keep higher efficiency, but also greatly improve the efficiency under operation at part load state.

According to some embodiments of the present invention, heat exchanger comprises first group of header and second group of header, header in this first group is corresponding to form N to header one by one with the header in this second group, the quantity of the header that in other words, first group of header comprises with second group of header is identical and corresponding one by one.And first group of header limits first group of refrigerant chamber correspondingly, second group of header limits second group of refrigerant chamber correspondingly.

For example, in each header in first group of header, all can correspondence limit a refrigerant chamber, the refrigerant chamber that in this first group of header, all headers limit forms first group of above-mentioned refrigerant chamber.Equally, in each header in second group of header, all can correspondence limit a refrigerant chamber, the refrigerant chamber that in this second group of header, all headers limit forms second group of above-mentioned refrigerant chamber.But the present invention is not limited to this.

Further, according to some embodiments of the present invention, first group of header comprises the first header 11 and the 3rd header 13, second group of header comprises the second header 12 and the 4th header 14, the first header 11 and the second header 12 form first pair of header, and the 3rd header 13 and the 4th header 14 form second pair of header.And heat exchanger tube is divided into first group of consisting of a plurality of the first heat exchanger tubes 21 and second group of consisting of a plurality of the second heat exchanger tubes 22.

Thus, the first heat exchanger tube 21 forms the first core body with fin 3, and the first core body and the first header 11 and the second header 12 form the first sub-heat exchanger.Equally, the second heat exchanger tube 22 forms the second core body with fin, and the second core body and the 3rd header 13 and the 4th header 14 form the second sub-heat exchanger.

Particularly, as shown in figures 1 and 3, the first header 11, the second header 12, the 3rd header 13 and the 4th header 14 are along the horizontal B(of heat exchanger 100 for example, left and right directions in Fig. 1, first to fourth header axially) extend, described heat exchanger tube along longitudinal A(of heat exchanger 100 for example, the above-below direction in Fig. 1) extend and comprise a plurality of the first heat exchanger tubes 21 and a plurality of the second heat exchanger tube 22.Be understandable that, the first heat exchanger tube 21 can be identical with the quantity of the second heat exchanger tube 22, can be also different.

The first heat exchanger tube 21 can have identical structure, for example flat tube with the second heat exchanger tube 22.Certainly, be understandable that, the first heat exchanger tube 21 also can have different structures from the second heat exchanger tube 22.

A plurality of the first heat exchanger tube 21 each intervals are turned up the soil and are located between the first header 11 and the second header 12, each first heat exchanger tube 21 extends along the vertical direction, the first end of each the first heat exchanger tube 21 (for example, lower end in Fig. 1) be connected with the first header 11, the second end of each the first heat exchanger tube 21 (for example, upper end in Fig. 1) be connected with the second header 12, thus, the first heat exchanger tube 21 is communicated with the first header 11 and the second header 12.

Particularly, the first end of each the first heat exchanger tube 21 can pass the wall of the first header 11 and extend into the interior predetermined length of the first header 11, and the first end of the first heat exchanger tube 21 can open wide to be communicated with the first header 11.

The second end of each the first heat exchanger tube 21 can pass the wall of the second header 12 and extend into the interior predetermined length of the second header 12, and the second end of the first heat exchanger tube 21 can open wide to be communicated with the second header 12.

A plurality of the second heat exchanger tube 22 each intervals are turned up the soil and are located between the 3rd header 13 and the 4th header 14, each second heat exchanger tube 22 extends along longitudinal A of heat exchanger, the first end of each the second heat exchanger tube 22 (for example lower end in Fig. 1) is connected with the 3rd header 13, the second end of each the second heat exchanger tube 22 (for example upper end in Fig. 1) is connected with the 4th header 14, and the second heat exchanger tube 22 is communicated with the 3rd header 13 and the 4th header 14 thus.

Particularly, the first end of each the second heat exchanger tube 22 can pass the wall of the 3rd header 13 and extend into the interior predetermined length of the 3rd header 13, and the first end of the second heat exchanger tube 22 can open wide to be communicated with the 3rd header 13.

The second end of each the second heat exchanger tube 22 can pass the wall of the 4th header 14 and extend into the interior predetermined length of the 4th header 14, and the second end of the second heat exchanger tube 22 can open wide to be communicated with the 4th header 14.

As shown in Figure 1, the second heat exchanger tube 22 and the first heat exchanger tube 21 are alternately arranged along horizontal B.Here, it should be noted that, " alternately arranging " should make broad understanding, for example, between adjacent two the first heat exchanger tubes 21, second heat exchanger tube 22 can be set, or between adjacent two the first heat exchanger tubes 21, a plurality of the second heat exchanger tubes 22 be set; Alternatively, between adjacent two the second heat exchanger tubes 22, one or more the first heat exchanger tubes 21 can be set; In addition, a plurality of the first heat exchanger tubes 21 can be divided into a plurality of the first set of heat exchange tubes, each first set of heat exchange tubes can comprise two or more the first heat exchanger tubes 21, similarly, a plurality of the second heat exchanger tubes 22 can be divided into a plurality of the second set of heat exchange tubes, each second set of heat exchange tubes can comprise that two or more the second heat exchanger tube 22, the first set of heat exchange tubes can be arranged alternately with the second set of heat exchange tubes.

As shown in Figure 1, fin 3 is located between adjacent heat exchanger tube, and more specifically, fin 3 is located between the first adjacent heat exchanger tube 21, and/or between the second adjacent heat exchanger tube 22, and/or between adjacent the first heat exchanger tube 21 and the second heat exchanger tube 22.

In other words, in an embodiment of the present invention, the first heat exchanger tube 21 and fin 3 form the first core body, the first core body and the first header 11 and the second header 12 form the first sub-heat exchanger, in like manner, the second heat exchanger tube 22 forms the second core body with fin 3, the second core body and the 3rd header 13 and the 4th header 14 form the second sub-heat exchanger, the first core body and the second core body form according to the core body of the heat exchanger of the embodiment of the present invention, and described the first sub-heat exchanger and the second sub-heat exchanger form according to the heat exchanger of the embodiment of the present invention.

In above-mentioned exemplary embodiment, the first header 11, the second header 12, the 3rd header 13 and the 4th header 14 are set parallel to each other, the first header 11 and the 3rd header 13 are arranged in one end (for example lower end of Fig. 1) of described core body, and the second header 12 and the 4th header 14 are arranged in the other end (for example upper end of Fig. 1) of described core body.It will be appreciated by those skilled in the art that, the axis of the first header 11 and the axis of the 3rd header 13 can become a little angle, and the axis of the second header 12 and the axis of the 4th header 14 can become a little angle.The first heat exchanger tube 21 and the second heat exchanger tube 22 are for flat tube and in parallel with each other along the left and right directions in Fig. 1 (also can be called the horizontal of heat exchanger) setting.

According to the heat exchanger 100 of the embodiment of the present invention, have two kinds of running statuses, a kind of is oepration at full load state, and the first sub-heat exchanger and the second sub-heat exchanger are all worked, another kind of is operation at part load state, i.e. one of the first sub-heat exchanger and second sub-heat exchanger work.

Under oepration at full load state, the first sub-heat exchanger and the second sub-heat exchanger are all worked, for example, cold-producing medium can enter from the opening of the first header 11 the first header 11, and enter the 3rd header 13 from the opening of the 3rd header 13, now, the first header 11 and the 3rd header 13 can be called inlet collecting.The cold-producing medium that enters the first header 11 flows in the second header 12 by the first heat exchanger tube 21, then from the opening of the second header 12, flow out, the cold-producing medium that enters the 3rd header 13 flows to the 4th header 14 by the second heat exchanger tube 22, and then the opening by the 4th header 14 flows out.Now, the second header 12 and the 4th header 14 also can be called outlet header.

Under oepration at full load state, because the first and second sub-heat exchangers are all worked, therefore high according to the heat exchange efficiency of the heat exchanger of the embodiment of the present invention, can meet the large load operation requirement of air-conditioning.

Under operation at part load state, the work of one of the first sub-heat exchanger and second sub-heat exchanger, for example, the first sub-heat exchanger work, cold-producing medium enters the first header 11 from the opening of the first header 11, then by First Heat Exchanger 21, flow to the second header 12, finally from the opening of the second header 12, discharge.

Under operation at part load state, due to the work of one of first and second sub-heat exchangers, therefore can meet air-conditioning middle-low load service requirement, and, laterally alternately the arranging along heat exchanger due to the first heat exchanger tube 21 and the second heat exchanger tube 22, even one of first and second heat exchangers work, heat exchange area under heat exchange area and oepration at full load state is basic identical, therefore improved heat transfer effect, efficiency with heat exchanger when the operation at part load, air themperature after heat exchange is simultaneously more even, avoid occurring local condensation phenomenon, and compact according to the heat exchanger structure of the embodiment of the present invention, save space.

In brief, the heat exchanger 100 of this inventive embodiments is applicable to have the air-conditioning of multisystem, according to the heat exchanger of the embodiment of the present invention, not only can under oepration at full load state, keep higher efficiency, but also greatly improve the efficiency under operation at part load state.

In some embodiments of the invention, as depicted in figs. 1 and 2, the first header 11 that is to say together with abutting against with the 3rd header 13, the first header 11 and the 3rd header 13 are close to setting side by side, and the two ends of the first header 11 can be concordant with the two ends of the 3rd header 13.

Equally, the second header 12 that is to say together with abutting against with the 4th header 14, and the second header 12 and the 4th header 14 are close to setting side by side, and the two ends of the second header 12 can be concordant with the two ends of the 4th header 14.

As shown in Figure 1, the 3rd header 13 and the 4th header 14 are between the first header 11 and the second header 12, and in other words, the 3rd header 13 is positioned at the inner side of the first header 11 and the inner side that the 4th header 14 is positioned at the second header 12.

In this embodiment, the first end of the first heat exchanger tube 21 is connected with the first header 11 through the 3rd header 13, that is to say, the first end of the first heat exchanger tube 21 extend into the interior predetermined length of the first header 11 after running through the 3rd header 13 again, thereby the first end of the first heat exchanger tube 21 is communicated with the first header 11, between the first heat exchanger tube 21 and the wall of the 3rd header 13, can seal by welding, to prevent refrigrant leakage.

Equally, the second end of the first heat exchanger tube 21 is connected with the second header 12 through the 4th header 14, that is to say, the second end of the first heat exchanger tube 21 extend into the interior predetermined length of the second header 12 after running through the 4th header 14, thereby the second end of the first heat exchanger tube 21 is communicated with the second header 12, between the first heat exchanger tube 21 and the wall of the 4th header 14, pass through welded seal, to avoid refrigrant leakage.

As shown in Figure 1, the He Xia two ends, upper end of the second heat exchanger tube 22 are directly connected with the 4th header 14 with the 3rd header 13 respectively.

In this embodiment, First Heat Exchanger 21 and the second heat exchanger tube 22 are flat tube, are formed with microchannel in flat tube, are micro-channel heat exchanger thus according to the heat exchanger of the embodiment of the present invention.

In this embodiment, between adjacent two the first heat exchanger tubes 21, arrange second heat exchanger tube 22, and arrange first heat exchanger tube 21 between adjacent two the second heat exchanger tubes 22, the quantity of the first heat exchanger tube 21 and the second heat exchanger tube 22 can equate.Certainly, be understandable that, as mentioned above, the ratio of the quantity of the first heat exchanger tube 21 and the second heat exchanger tube 22 can be 1:2.For another example, the ratio of the quantity of the first heat exchanger tube 21 and the second heat exchanger tube 22 can be 1:3.

For the ordinary skill in the art, can set as required the quantity of the first heat exchanger tube 21 and the second heat exchanger tube 22.

In some embodiments of the invention, as shown in Figure 3, the first header 11 that is to say together with abutting against with the 3rd header 13, the first header 11 and the 3rd header 13 are close to setting side by side, and the two ends of the first header 11 can be concordant with the two ends of the 3rd header 13.

The second header 12 and the 3rd header 13 are between the 4th header 14 and the first header 11, and in other words, the second header 12 is positioned at the inner side of the 4th header 14 and the inner side that the 3rd header 13 is positioned at the first header 11.

In this embodiment, the first end of the first heat exchanger tube 21 is connected with the first header 11 through the 3rd header 13, that is to say, the first end of the first heat exchanger tube 21 extend into the interior predetermined length of the first header 11 after running through the 3rd header 13 again, thereby the first end of the first heat exchanger tube 21 is communicated with the first header 11, the second end of the first heat exchanger tube 21 is directly connected with the second header 12.

The second end of the second heat exchanger tube 22 is connected with the 4th header 14 through the second header 12, that is to say, the second end of the second heat exchanger tube 22 extend into the interior predetermined length of the 4th header 14 after running through the second header 12 again, thereby the second end of the second heat exchanger tube 22 is communicated with the 4th header 14, the first end of the second heat exchanger tube 22 is directly connected with the 3rd header 13.

In this embodiment, preferably, between adjacent two the first heat exchanger tubes 21, arrange second heat exchanger tube 22, between adjacent two the second heat exchanger tubes 22, arrange first heat exchanger tube 21.

This embodiment compares with Fig. 1 embodiment, one of them system only through the header of another system once, can make the drag losses of the system that is through reduce, and the operational efficiency of system improves, in addition, the cold-producing medium of this system being through is also more prone to distribute.

In some embodiments of the invention, as Figure 4-Figure 6, the second heat exchanger tube 22 is divided into interlude 222 and the first fold curved segment 221 and the second bending section 223 that are connected with the two ends of the interlude 222 of the second heat exchanger tube 22 respectively, wherein the first fold curved segment 221 of the second heat exchanger tube 22 is with respect to interlude 222 bendings of the second heat exchanger tube 22, and the second bending section 223 of the second heat exchanger tube 22 is with respect to interlude 222 bendings of the second heat exchanger tube 22.

Because the two ends of the second heat exchanger tube 22 have first fold curved segment 221 and the second bending section 223, thereby be positioned at two headers of core body the same side of heat exchanger without abutting setting, the second heat exchanger tube 22, without through the first header 11 or the second header 12, can directly be connected with the 4th header 14 with the 3rd header 13.

In this embodiment, the first heat exchanger tube 21 can directly be connected with the second header 12 with the first header 11, without passing the 3rd header 13 or the 4th header 14.

Thus, facilitated the assembling of heat exchanger 100, and, because heat exchanger tube is no longer through header, therefore can not increase the flow resistance of refrigerant in this header, more even thereby refrigerant flows in header, and then improve heat exchange efficiency.In addition, because the cold-producing medium of certain system is no longer subject to the flat tube impact of another system in header, flow can not produce a large amount of shocks cause a large amount of divisions of gas-liquid and layering, so flow noise can reduce greatly.

In this embodiment, the angle α 2 of the first fold curved segment 221 of the second heat exchanger tube 22 and the interlude 222 of the second heat exchanger tube 22 is: α 2=90 degree, certainly, be understandable that, the angle α 2 of the first fold curved segment 221 of the second heat exchanger tube 22 and the interlude 222 of the second heat exchanger tube 22 can be also: 90 ° of α 2 >.

Similarly, the angle α 2 of the second bending section 223 of the second heat exchanger tube 22 and the interlude 222 of the second heat exchanger tube 22 can be: α 2=90 degree, certainly, be understandable that, the angle α 2 of the second bending section 223 of the second heat exchanger tube 22 and the interlude 222 of the second heat exchanger tube 22 can be also: 90 ° of α 2 >.

In this embodiment, the first heat exchanger tube 21 and the second heat exchanger tube 22 can be flat tubes, and the first fold curved segment 221 of the second heat exchanger tube 22 and the second bending section 223 can be first to reverse bending again, thereby bending is more prone to.

Specifically, the first end of the second heat exchanger tube 22 first reverses then bending with respect to the interlude 222 of the second heat exchanger tube 22 and with respect to the interlude 222 of the second heat exchanger tube 22, first reverses then bending to form the second bending section 223 of the second above-mentioned heat exchanger tube 22 to form the second end of first fold curved segment 221, the second heat exchanger tubes 22 of the second above-mentioned heat exchanger tube 22.

Adopt the mode of bending after first reversing can facilitate bending, greatly reduce that heat exchanger tube fractures, the probability of jackknifing simultaneously.

Similarly, the first heat exchanger tube 21 is divided into interlude 212 and the first fold curved segment 211 and the second bending section 213 that are connected with the two ends of the interlude 212 of the first heat exchanger tube 21 respectively, wherein the first fold curved segment 211 of the first heat exchanger tube 21 is with respect to interlude 212 bendings of the first heat exchanger tube 21, and the second bending section 213 of this first heat exchanger tube 21 is with respect to interlude 212 bendings of the first heat exchanger tube 21.

Because each the two ends in the second heat exchanger tube 22 and the first heat exchanger tube 21 all have first fold curved segment and the second bending section, thereby be positioned at two headers of same one end of heat exchanger core body without abutting setting, for example being positioned at the second header 12 of upper end and the 4th header 14 can be spaced apart on the thickness direction of the core body of heat exchanger, the second heat exchanger tube 22 is without passing the first header 11 or the second header 12, the first heat exchanger tube 21 is also without passing the 3rd header 13 or the 4th header 14 simultaneously, the second heat exchanger tube 22 directly can be connected with the 4th header 14 with the 3rd header 13, the first heat exchanger tube 21 can directly be connected with the second header 12 with the first header 11.

Therefore, reduced the flow resistance of heat exchanger tube to refrigerant in header, refrigerant flows more even in header, and then can improve heat exchange efficiency.

The angle α 1 of the first fold curved segment 211 of the first heat exchanger tube 21 and the interlude 212 of the first heat exchanger tube 21 can meet: α 1=90 degree.Similarly, the angle α 1 of the second bending section 213 of the first heat exchanger tube 21 and the interlude 212 of the first heat exchanger tube 21 can meet: α 1=90 degree.

When α 1=90 degree and α 2=90 spend, as shown in Fig. 7-10, the first header 11 and the 3rd header 13 are in same plane, and the second header 12 and the 4th header 14 are in same plane.Thus, the header of both sides is all in side, and in the situation that size of heat exchanger limits, the position of header does not take the extra draught area of heat exchanger, can not affect the effect of heat exchange.

As mentioned above, the first end of the second heat exchanger tube 22 first reverses then bending with respect to the interlude 222 of the second heat exchanger tube 22 and with respect to the interlude 222 of the second heat exchanger tube 22, first reverses then bending to form the second bending section 223 of the second above-mentioned heat exchanger tube 22 to form the second end of first fold curved segment 221, the second heat exchanger tubes 22 of the second above-mentioned heat exchanger tube 22.

Similarly, the first fold curved segment 211 of the first heat exchanger tube 21 and the second bending section 213 can be to form by first reversing the mode of bending again, specifically, the first end of the first heat exchanger tube 21 first reverses then bending with respect to the interlude 212 of the first heat exchanger tube 21 and with respect to the interlude 212 of the first heat exchanger tube 21, first reverses then bending to form the second bending section 213 of the first above-mentioned heat exchanger tube 21 to form the second end of first fold curved segment 211, the first heat exchanger tubes 21 of the first above-mentioned heat exchanger tube 21.

Adopt the mode of bending after first reversing can conveniently process bending section, greatly reduce that heat exchanger tube fractures, the probability of jackknifing simultaneously.

In some embodiments of the invention, as shown in figure 11, the second heat exchanger tube 22 is divided into interlude 222 and the first fold curved segment 221 and the second bending section 223 that are connected with the two ends of the interlude 222 of the second heat exchanger tube 22 respectively, wherein the first fold curved segment 221 of the second heat exchanger tube 22 is with respect to interlude 222 bendings of the second heat exchanger tube 22, and the second bending section 223 of the second heat exchanger tube 22 is with respect to interlude 222 bendings of the second heat exchanger tube 22.

In this embodiment, the angle α 2 of the first fold curved segment 221 of the second heat exchanger tube 22 and the interlude 222 of the second heat exchanger tube 22 can meet: α 2 > 90 degree.Similarly, the angle α 2 of the second bending section 223 of the second heat exchanger tube 22 and the interlude 222 of the second heat exchanger tube 22 can meet: α 2 > 90 degree.

Reason based on same, the angle α 1 of the first fold curved segment 211 of the first heat exchanger tube 21 and the interlude 212 of the first heat exchanger tube 21 can meet: α 1 > 90 degree.Similarly, the angle α 1 of the second bending section 213 of the first heat exchanger tube 21 and the interlude 212 of the first heat exchanger tube 21 can meet: α 1 > 90 degree.

More than bending angle α 1, α 2 are controlled to 90 degree, can avoid heat exchanger tube bending angle intensity excessive and that cause low, in the life-span that can improve like this heat exchanger tube, reduce the probability damaging in bending process simultaneously.

In some embodiments of the invention, as shown in Figure 12 and Figure 13, the second heat exchanger tube 22 is divided into interlude 222 and the first fold curved segment 221 and the second bending section 223 that are connected with the two ends of the interlude 222 of the second heat exchanger tube 22 respectively, wherein the first fold curved segment 221 of the second heat exchanger tube 22 is with respect to interlude 222 bendings of the second heat exchanger tube 22, and the second bending section 223 of the second heat exchanger tube 22 is with respect to interlude 222 bendings of the second heat exchanger tube 22.

In this embodiment, in the first fold curved segment 221 of the interlude 222 of the second heat exchanger tube 22 and the second heat exchanger tube 22 and the second bending section 223, between any, be all connected with the second bending pipe box 224, in other words, the two ends of the interlude 222 of each the second heat exchanger tube 22 are connected with first fold curved segment 221 and second bending section 223 of the second heat exchanger tube 22 by a second bending pipe box 224 respectively.That is to say, the first end of the second heat exchanger tube 22 is connected with the interlude 222 of the second heat exchanger tube 22 by the second bending pipe box 224 respectively with the second end.

Similarly, in the first fold curved segment 211 of the interlude 212 of the first heat exchanger tube 21 and the first heat exchanger tube 21 and the second bending section 213, between any, be all connected with first fold bend pipe cover 214, in other words, the two ends of the interlude 212 of each the first heat exchanger tube 21 are connected with first fold curved segment 211 and second bending section 213 of the first heat exchanger tube 21 by a first fold bend pipe cover 214 respectively.That is to say, between the first end of the first heat exchanger tube 21 and the second end and the interlude 212 of the first heat exchanger tube 21, be provided with first fold bend pipe cover 214.

Adopt first fold bend pipe cover 214 to be connected interlude and the bending section of each heat exchanger tube with the second bending pipe box 224, can avoid directly bending the problems such as the caused heat exchanger tube of heat exchanger tube is out of shape, intensity is low, the life-span is short.

First fold bend pipe cover the 214 and second bending pipe box 224 can adopt the pipe box thinner compared with the wall of heat exchanger tube, can reduce and assemble the interference between angle so when mounted, has further improved efficiency of assembling.

In this embodiment, the angle α 2 of the first fold curved segment 221 of the second heat exchanger tube 22 and the interlude 222 of the second heat exchanger tube 22 can meet: α 2 > 90 degree.Certainly angle α 2 also can meet: α 2=90 degree.Similarly, the angle α 2 of the second bending section 223 of the second heat exchanger tube 22 and the interlude 222 of the second heat exchanger tube 22 can meet: α 2 > 90 degree.Certainly angle α 2 also can meet: α 2=90 degree.

Equally, the angle α 1 of the first fold curved segment 211 of the first heat exchanger tube 21 and the interlude 212 of the first heat exchanger tube 21 can meet: α 1 > 90 degree.Certainly angle α 1 also can meet: α 1=90 degree.Similarly, the angle α 1 of the second bending section 213 of the first heat exchanger tube 21 and the interlude 212 of the first heat exchanger tube 21 can meet: α 1 > 90 degree.Certainly angle α 1 also can meet: α 1=90 degree.

According to other embodiment of the present invention, first group of header comprises the first header, the 3rd header and the 5th header, second group of header comprises the second header, the 4th header and the 6th header, the first header and the second header form first pair of header, the 3rd header and the 4th header form second pair of header, the 5th header and the 6th header form the 3rd pair of header, and heat exchanger tube is divided into first group that a plurality of the first heat exchanger tubes, consists of, second group and the 3rd group of being formed by a plurality of the 3rd heat exchanger tubes by a plurality of the second heat exchanger tubes, being formed.

A plurality of the first heat exchanger tubes and fin form the first core body, and the first core body and the first header and the second header form the first sub-heat exchanger.A plurality of the second heat exchanger tubes and fin form the second core body, and the second core body and the 3rd header and the 4th header form the second sub-heat exchanger.A plurality of the 3rd heat exchanger tubes and fin form the 3rd core body, and the 3rd core body and the 5th header and the 6th header form the 3rd sub-heat exchanger.

Should be understood that, the difference of this embodiment and above-described embodiment is mainly the quantity of header and the group number of heat exchanger tube, this embodiment compares above-described embodiment, many a pair of header and one group of heat exchanger tube, therefore be equivalent to a plurality of sub-heat exchangers, other structure and set-up mode for heat exchanger all can adopt same as the previously described embodiments or close set-up mode, describe in detail no longer one by one here.

According to other embodiment of the present invention, shown in Figure 14, first group of header comprises the first header 11, the 3rd header 13, the 5th header 15 and the 7th header 17, second group of header comprises the second header 12, the 4th header 14, the 6th header 16 and the 8th header 18, the first header 11 and the second header 12 form first pair of header, the 3rd header 13 and the 4th header 14 form second pair of header, the 5th header 15 and the 6th header 16 form the 3rd pair of header, the 7th header 17 and the 8th header 18 form the 4th pair of header, heat exchanger tube is divided into first group that a plurality of the first heat exchanger tubes 21, consists of, by a plurality of the second heat exchanger tubes 22, formed second group, the 3rd group and the 4th group of being formed by a plurality of the 4th heat exchanger tubes 24 by a plurality of the 3rd heat exchanger tubes 23, being formed.

A plurality of the first heat exchanger tubes 21 form the first core body with fin, and the first core body and the first header 11 and the second header 12 form the first sub-heat exchanger.A plurality of the second heat exchanger tubes 21 form the second core body with fin, and the second core body and the 3rd header 13 and the 4th header 14 form the second sub-heat exchanger.A plurality of the 3rd heat exchanger tubes 23 form the 3rd core body with fin, and the 3rd core body and the 5th header 15 and the 6th header 16 form the 3rd sub-heat exchanger.A plurality of the 4th heat exchanger tubes 24 form four-core body with fin, and four-core body and the 7th header 17 and the 8th header 18 form the 4th sub-heat exchanger.

Should be understood that, the difference of this embodiment and above-described embodiment can only be the quantity of header and the group number of heat exchanger tube, this embodiment compares above-described embodiment, many a pair of header and one group of heat exchanger tube, therefore be equivalent to a plurality of sub-heat exchangers, other structure and set-up mode for heat exchanger all can adopt same as the previously described embodiments or close set-up mode, describe in detail no longer one by one here.

According to one embodiment of present invention, as shown in Figure 15 and Figure 16, heat exchanger comprises the first header 11 and the second header 12, in the first header 11, be provided with the first cross partition 41, thereby the inner chamber of the first header 11 is separated into the first chamber 101, the 3rd chamber 103, the 5th chamber 105 and the 7th chamber 107.

Equally, in the second header 12, be provided with the second cross partition 42, thereby the inner chamber of the second header 12 is separated into the second chamber 102, the 4th chamber 104, the 6th chamber 106 and the 8th chamber 108.

The 3rd group and the 4th group of being formed by a plurality of the 4th heat exchanger tubes that heat exchanger tube is divided into first group of consisting of a plurality of the first heat exchanger tubes, a plurality of the second heat exchanger tubes, consist of second group, a plurality of the 3rd heat exchanger tubes, consists of.

Wherein, first group of heat exchanger tube can be used for being communicated with the first chamber 101 and the second chamber 102, thereby forms first sub-heat exchanger.Second group of heat exchanger tube can be used for being communicated with the 3rd chamber 103 and the 4th chamber 104, thereby forms second sub-heat exchanger.The 3rd group of heat exchanger tube can be used for being communicated with the 5th chamber 105 and the 6th chamber 106, thereby forms the 3rd sub-heat exchanger.The 4th group of heat exchanger tube can be used for being communicated with the 7th chamber 107 and the 8th chamber 108, thereby forms the 4th sub-heat exchanger.

But the present invention is not limited to this.Should be understood that, those skilled in the art is reading on the basis of description content disclosed herein, obviously can be according to the quantitative requirement of the refrigerant chamber in first group of refrigerant chamber (or second group of refrigerant chamber), the shape of flexible design the first dividing plate 41 and second partition 42, thus corresponding header is limited to the refrigerant chamber of required number.

For example, first group of refrigerant chamber comprises two refrigerant chamber, and the first dividing plate 41 can extending axially and the inner space of the first header 11 is isolated into two refrigerant chamber along the first header 11.

According to one embodiment of present invention, as shown in Figure 17-Figure 19, the first header 11 and the 3rd header 13 layout that is spaced apart from each other, the first header 11 is provided with a plurality of the first barrels 51 that are communicated with along the axially spaced of the first header 11 and with the inner chamber of the first header 11, the 3rd header 13 is provided with along the axially spaced of the 3rd header 13 and a plurality of the 3rd barrel 53, the first barrels 51 that are communicated with the inner chamber of the 3rd header 13 and the 3rd barrel 53 axially alternately arranging along the first header 11 and the 3rd header 13.

Equally, the second header 12 and the 4th header 14 layout that is spaced apart from each other, the second header 12 is provided with a plurality of the second barrels 52 that are communicated with along the axially spaced of the second header 12 and with the inner chamber of the second header 12, the 4th header 14 is provided with along the axially spaced of the 4th header 14 and a plurality of the 4th barrel 54, the second barrels 52 that are communicated with the inner chamber of the 4th header 14 and the 4th barrel 54 axially alternately arranging along the second header 12 and the 4th header 14.

Wherein, heat exchanger tube divides for first group of consisting of a plurality of the first heat exchanger tubes 21 and second group of consisting of a plurality of the second heat exchanger tubes 22, the first end of each the first heat exchanger tube 21 is communicated with the first barrel 51, the second end of each the first heat exchanger tube 21 is communicated with the second barrel 52, the first end of each the second heat exchanger tube 22 is communicated with the 3rd barrel 53, and the second end of each the second heat exchanger tube 22 is communicated with the 4th barrel 54.Thus, heat exchanger tube, without bending, adopts traditional straight tube to be connected with header by corresponding barrel, and easy to process, cost is low.

Below with reference to Fig. 2, describe according to many refrigeration systems air-conditioning of the embodiment of the present invention.Many refrigeration systems air-conditioning can comprise a plurality of refrigeration systems according to an embodiment of the invention, and at least two refrigeration systems in described a plurality of refrigeration systems share at least one heat exchanger, and described at least one heat exchanger is heat exchanger 100.Have more, a plurality of refrigeration systems comprise a plurality of compressors 101, a plurality of throttling arrangement 103, condenser 102 and evaporimeter 107, and wherein at least two refrigeration systems share at least one condenser 102 or at least one evaporimeter 107.

Two refrigeration system air-conditionings of take are below described as example, yet the present invention is not limited to this.

As shown in figure 20, two refrigeration systems of this pair of refrigeration system air-conditioning comprise two compressors 101, two throttling arrangements 103, two gas-liquid separators 104, two condensers 102, evaporimeter 107, blower fan 105 and for driving the motor 106 of blower fan 105.In other words, two refrigeration systems share an evaporimeter 107, and evaporimeter 107 consists of heat exchanger 100, and throttling arrangement 103 can be expansion valve.

The described pair of refrigeration system air-conditioning has two refrigeration systems (refrigerant circulation line) that can move simultaneously and can independent operating, one of them refrigeration system comprises a compressor, a condenser, an expansion valve and a gas-liquid separator, wherein gas-liquid separator, compressor, condenser and throttling arrangement are connected successively, and throttling arrangement and gas-liquid separator are heat exchanger 100 with evaporimeter 107(respectively) the first header 11 be connected with the second header 12.

Another refrigeration system comprises another compressor, another condenser, another throttling arrangement and another gas-liquid separator, wherein gas-liquid separator, compressor, condenser and the throttling arrangement setting of connecting successively, throttling arrangement and gas-liquid separator are connected with the 4th header 14 with the 3rd header 13 of heat exchanger 100 respectively.The contiguous evaporimeter 107 of blower fan 105 arranges, and motor 106 is connected with blower fan 105 for driving blower fan 105 runnings.In this pair of refrigeration system air-conditioning, according to burden requirement, can select one of them refrigeration system independent operating (operation at part load state), or two refrigeration systems (oepration at full load state) are worked simultaneously.

When a refrigeration system independent operating, to work and compare simultaneously with two refrigeration systems, the heat exchange area of evaporimeter is substantially constant, and therefore, the efficiency under operation at part load state improves, and leaving air temp is even.

In the description of this description, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiment or example.Although illustrated and described embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change above-described embodiment within the scope of the invention in the situation that not departing from principle of the present invention and aim, modification, replacement and modification.

Claims

1. a heat exchanger, is characterized in that, comprising:

First and second groups of refrigerant chamber, described first and second groups of refrigerant chamber extend transversely respectively, and the refrigerant chamber in described first group is corresponding to form N to refrigerant chamber one by one with the refrigerant chamber in described second group;

Heat exchanger tube, described heat exchanger tube extends longitudinally, described heat exchanger tube is divided into N group, wherein i group heat exchanger tube comprises a plurality of i heat exchanger tubes, the first end of each i heat exchanger tube is communicated with a refrigerant chamber in refrigerant chamber with i, and the second end of each i heat exchanger tube is communicated with another refrigerant chamber in refrigerant chamber with i, and the heat exchanger tube in arbitrary group and the heat exchanger tube in all the other groups are alternately arranged, N is more than or equal to 2 positive integer, and i is the positive integer that is less than or equal to N;

Fin, described fin is located between adjacent described heat exchanger tube.

2. heat exchanger according to claim 1, is characterized in that, comprises first and second groups of headers, and the header in described first group is corresponding to form N to header one by one with the header in described second group; Described first group of header limits described first group of refrigerant chamber correspondingly, and described second group of header limits described second group of refrigerant chamber correspondingly.

3. heat exchanger according to claim 2, it is characterized in that, described first group of header comprises the first and the 3rd header, described second group of header comprises the second and the 4th header, and described heat exchanger tube is divided into first group of consisting of a plurality of the first heat exchanger tubes and second group of consisting of a plurality of the second heat exchanger tubes.

4. heat exchanger according to claim 3, it is characterized in that, together with described the first header abuts against with described the 3rd header, together with described the second header abuts against with described the 4th header, described the 3rd header and described the 4th header are between described the first header and described the second header, the first end of described the first heat exchanger tube is connected with described the first header through described the 3rd header, and the second end of described the first heat exchanger tube is connected with described the second header through described the 4th header.

5. according to heat exchanger claimed in claim 3, it is characterized in that, described the first and second heat exchanger tubes are flat tube, described the first heat exchanger tube is divided into the second bending section that the second end of interlude and the first fold curved segment being connected with the first end of the interlude of described the first heat exchanger tube respectively and interlude with described the first heat exchanger tube is connected, and the first and second bending sections of described the first heat exchanger tube are with respect to the interlude bending respectively of described the first heat exchanger tube;

6. heat exchanger according to claim 5, it is characterized in that, described the second heat exchanger tube is divided into the second bending section that the second end of interlude and the first fold curved segment being connected with the first end of the interlude of described the second heat exchanger tube respectively and interlude with described the second heat exchanger tube is connected, the first fold curved segment of described the second heat exchanger tube and the second bending section with respect to described the second heat exchanger tube interlude bending respectively;

7. heat exchanger according to claim 6, it is characterized in that, angle α 1 >=90 degree between any in the first and second bending sections of the interlude of described the first heat exchanger tube and described the first heat exchanger tube, angle α 2 >=90 degree between any in the first and second bending sections of the interlude of described the second heat exchanger tube and described the second heat exchanger tube.

8. according to the heat exchanger described in any one in claim 3-7, it is characterized in that, between adjacent two described the first heat exchanger tubes, be furnished with two or more the second heat exchanger tubes.

9. heat exchanger according to claim 3, it is characterized in that, described the first header and described the 3rd header layout that is spaced apart from each other, described the first header is provided with along the axially spaced of described the first header and a plurality of the first barrels of being communicated with the inner chamber of described the first header, described the 3rd header is provided with a plurality of the 3rd barrels that are communicated with along the axially spaced of described the 3rd header and with the inner chamber of described the 3rd header, and described the first barrel and described the 3rd barrel are axially alternately arranged along the described first and the 3rd header;

10. heat exchanger according to claim 1, it is characterized in that, comprise the first header and the second header, in described the first header, be provided with the first cross partition, so that the inner chamber of described the first header is separated into the first chamber, the 3rd chamber, the 5th chamber and the 7th chamber, in described the second header, be provided with the second cross partition, so that the inner chamber of described the second header is separated into the second chamber, the 4th chamber, the 6th chamber and the 8th chamber, described heat exchanger tube is divided into first group that a plurality of the first heat exchanger tubes, consists of, by a plurality of the second heat exchanger tubes, formed second group, the 3rd group and the 4th group of being formed by a plurality of the 4th heat exchanger tubes by a plurality of the 3rd heat exchanger tubes, being formed.

More than 11. 1 kinds, refrigeration system air-conditioning, is characterized in that, comprises a plurality of refrigeration systems, and at least two refrigeration systems in described a plurality of refrigeration systems share at least one heat exchanger, and described heat exchanger is according to the heat exchanger described in any one in claim 1-10.

12. many refrigeration systems air-conditionings according to claim 11, is characterized in that, described at least one heat exchanger is condenser and/or evaporimeter.