Integrated heat exchange device

Abstract

The invention relates to an integrated heat exchange device which comprises an evaporation section, a connecting section and a condensation section which are sequentially arranged and connected in the preset direction, the evaporation section comprises a plurality of evaporation flat pipes arranged in the second direction, the evaporation flat pipes are provided with evaporation channels, and the condensation section comprises a plurality of condensation flat pipes arranged in the first direction. The condensation flat pipe is provided with condensation channels, the connecting section is provided with a transition cavity, and the evaporation channels are communicated with the condensation channels through the transition cavity; the adjacent evaporation flat pipes are arranged at intervals to form a first external air channel penetrating in the first direction, the adjacent condensation flat pipes are arranged at intervals to form a second external air channel penetrating in the second direction, and every two of the first direction, the second direction and the preset direction are perpendicular to each other. According to the integrated heat exchange device provided by the invention, the problem that hot air and cold air are prone to mutual interference and heat crosstalk due to the arrangement scheme of an existing heat pipe heat exchanger is solved.

Description

Technical Field

[0001] The present application relates to the technical field of heat pipe heat exchange structures, and in particular to an integrated heat exchange device. Background Art

[0002] In the field of waste heat recovery, air-to-air heat exchange is a common application scenario. Existing air-to-air heat exchangers are divided into two categories: partition-type heat exchangers and heat pipe heat exchangers. Usually, in a heat pipe heat exchanger, the evaporation section and the condensation section are arranged in parallel. At this time, the hot air used for heat exchange with the evaporation section and the cold air used for heat exchange with the condensation section are also arranged in parallel. In this way, the hot air and the cold air are easy to interfere with each other and affect the heat exchange efficiency of the heat pipe heat exchanger. Summary of the invention

[0003] Based on this, it is necessary to provide an integrated heat exchange device to solve the problem that the existing arrangement of heat pipe heat exchangers easily causes hot air and cold air to interfere with each other and cause heat crosstalk.

[0004] The integrated heat exchange device provided in the present application includes an evaporation section, a connection section and a condensation section which are arranged and connected in sequence along a preset direction. The evaporation section includes a plurality of evaporation flat tubes arranged along a second direction, and the evaporation flat tubes are provided with evaporation channels. The condensation section includes a plurality of condensation flat tubes arranged along a first direction, and the condensation flat tubes are provided with condensation channels. The connection section is provided with a transition cavity, and each evaporation channel is connected to each condensation channel through the transition cavity. Adjacent evaporation flat tubes are arranged at intervals to form a first external air channel which is arranged through the first direction, and adjacent condensation flat tubes are arranged at intervals to form a second external air channel which is arranged through the second direction. The first direction, the second direction and the preset direction are arranged perpendicular to each other.

[0005] In one embodiment, the channel width A of each evaporation channel along the first direction, the maximum distance B of different condensation channels in the condensation section along the first direction, and the channel length C of the transition chamber along the first direction satisfy C≥A=B; the channel width D of each condensation channel along the second direction, the maximum distance E of different evaporation channels in the evaporation section along the second direction, and the channel length F of the transition chamber along the second direction satisfy F≥D=E.

[0006] In one embodiment, the cross section of the transition cavity perpendicular to the preset direction is square, and A=B=C=D=E=F.

[0007] In one embodiment, one end of the evaporation channel close to the condensation section is flared, and one end of the condensation channel close to the evaporation section is flared.

[0008] In one embodiment, the condensation section also includes a guide strip in the shape of a pointed cone, the bottom of which is connected to the outer wall of the second external air duct facing the evaporation section, and the tip of the guide strip extends in a direction close to the evaporation section so that the vapor can be diverted by the guide strip to an adjacent condensation channel.

[0009] In one embodiment, the integrated heat exchange device also includes a first connecting part and a second connecting part. The first connecting part is arranged at one end of the evaporation section away from the condensation section and connects each evaporation channel. The second connecting part is arranged at one end of the condensation section away from the evaporation section and connects each condensation channel.

[0010] In one of the embodiments, the integrated heat exchange device also includes a controller, a pressure sensor and a pressure relief valve, the pressure sensor is arranged in the transition chamber, or the pressure sensor is arranged in the condensation channel, or the pressure sensor is arranged in the second connecting part; the pressure relief valve is arranged in the connecting section and connected to the transition chamber, or the pressure relief valve is arranged in the condensation section and connected to the condensation channel, or the pressure relief valve is arranged and connected to the second connecting part; the controller is electrically connected to the pressure sensor and the pressure relief valve respectively, when the pressure sensor measures that the air pressure value in the integrated heat exchange device is greater than a preset value, the controller can control the pressure relief valve to open, and when the pressure sensor measures that the air pressure value in the integrated heat exchange device is less than or equal to the preset value, the controller can control the pressure relief valve to close.

[0011] In one embodiment, a first external fin is provided in the first external air passage, and two ends of the first external fin are respectively connected to the side walls of adjacent evaporation flat tubes; And / or, a first inner fin is provided in the evaporation channel, and two ends of the first inner fin are respectively connected to inner walls of the evaporation channel that are arranged opposite to each other along the second direction; And / or, a second inner fin is provided in the condensation channel, and two ends of the second inner fin are respectively connected to inner walls of the condensation channel that are arranged opposite to each other along the first direction; And / or, a second external fin is provided in the second external air duct, and two ends of the second external fin are respectively connected to the side walls of adjacent condensation flat tubes.

[0012] In one embodiment, the sum of the total area of ​​the first outer fins and the total area of ​​the second outer fins is greater than the sum of the total area of ​​the first inner fins and the total area of ​​the second inner fins.

[0013] In one of the embodiments, a plurality of reinforcing ribs are disposed in the transition cavity, each reinforcing rib is fixedly connected to an inner side wall of the transition cavity, and each reinforcing rib extends along a plane perpendicular to a preset direction.

[0014] Compared with the prior art, the integrated heat exchange device provided in the present application is arranged perpendicularly to each other in the first direction, the second direction and the preset direction, that is, the airflow direction of the first external air duct and the airflow direction of the second external air duct are arranged perpendicularly, and the first external air duct and the second external air duct are staggered along the preset direction. Therefore, the external airflow passing through the first external air duct and the external airflow passing through the first external air duct have inconsistent flow directions and are far apart. That is, it is ensured to the greatest extent that the hot air passing through the evaporation section and the cold air passing through the condensation section are difficult to interfere with each other and cause heat cross-talk, thereby improving the heat exchange efficiency of the integrated heat exchange device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 A schematic structural diagram of an integrated heat exchange device according to an embodiment of the present application; Figure 2 A schematic diagram of a partial structure of an integrated heat exchange device according to an embodiment of the present application; Figure 3 for Figure 2 A magnified view of Q is shown; Figure 4 A cross-sectional view of an evaporation section of an embodiment provided in the present application; Figure 5 A cross-sectional view of a condensation section of an embodiment provided in the present application; Figure 6 A cross-sectional view of a connecting section of an embodiment provided in the present application; Figure 7 A schematic diagram of the assembly structure of the connecting section and the reinforcing ribs of an embodiment provided in the present application.

[0017] Figure numerals: 100, evaporation section; 110, evaporation flat tube; 111, evaporation channel; 112, first inner fin; 120, first external air duct; 121, first external fin; 200, condensation section; 210, condensation flat tube; 211, condensation channel; 212, second inner fin; 220, second external air duct; 221, second external fin; 300, connecting section; 310, transition cavity; 400, reinforcing rib; 500, first connecting part; 600, second connecting part. DETAILED DESCRIPTION

[0018] In the field of waste heat recovery, air-to-air heat exchange is a common application scenario. Existing air-to-air heat exchangers are divided into two categories: partition-type heat exchangers and heat pipe heat exchangers. Usually, in a heat pipe heat exchanger, the evaporation section and the condensation section are arranged in parallel. At this time, the hot air used for heat exchange with the evaporation section and the cold air used for heat exchange with the condensation section are also arranged in parallel. In this way, the hot air and the cold air are easy to interfere with each other and affect the heat exchange efficiency of the heat pipe heat exchanger.

[0019] See also Figure 1-Figure 7 In order to solve the problem that the existing arrangement of heat pipe heat exchangers easily causes hot air and cold air to interfere with each other and cause heat exchange, the present application provides an integrated heat exchange device. The integrated heat exchange device includes an evaporation section 100, a connection section 300 and a condensation section 200 that are sequentially arranged and connected along a preset direction. The evaporation section 100 includes a plurality of evaporation flat tubes 110 arranged in parallel, and the evaporation flat tubes 110 are provided with evaporation channels 111. The condensation section 200 includes a plurality of condensation flat tubes 210 arranged in parallel, and the condensation flat tubes 210 are provided with condensation channels 211. The connection section 300 is provided with a transition cavity 310, and each evaporation channel 111 is connected to each condensation channel 211 through the transition cavity 310.

[0020] It should be noted that the evaporation channels 111 and the condensation channels 211 are not connected one-to-one, but are connected to each other in a many-to-many manner through the transition chamber 310 .

[0021] Furthermore, it should be noted that the integrated heat exchange device is a gravity heat pipe structure, and the working principle of the integrated heat exchange device is that the liquid working medium in the evaporation channel 111 absorbs heat and vaporizes into a vapor state in the evaporation section 100 and enters the various condensation channels 211 of the condensation section 200 through the transition chamber 310, and releases heat and liquefies in the condensation section 200 and refluxes to the evaporation section 100 through the transition chamber 310.

[0022] like Figure 1-Figure 5 As shown, a plurality of evaporation flat tubes 110 are arranged along the second direction, and adjacent evaporation flat tubes 110 are spaced apart to form a first external air duct 120 that is arranged through the first direction; a plurality of condensation flat tubes 210 are arranged along the first direction, and adjacent condensation flat tubes 210 are spaced apart to form a second external air duct 220 that is arranged through the second direction; the first direction, the second direction and the preset direction are arranged perpendicular to each other.

[0023] It should be noted that the first direction is the airflow direction of the first external air duct 120, and the second direction is the airflow direction of the second external air duct 220. In addition, in the figure, the X direction represents the first direction, the Y direction represents the second direction, and the Z direction represents the preset direction.

[0024] Since the first direction, the second direction and the preset direction are arranged perpendicular to each other, that is, the airflow direction of the first external air duct 120 and the airflow direction of the second external air duct 220 are arranged perpendicularly, and the first external air duct 120 and the second external air duct 220 are staggered along the preset direction, the external air flow through the first external air duct 120 and the external air flow through the first external air duct 120 have inconsistent flow directions and are far apart, that is, it is ensured to the greatest extent that the hot air passing through the evaporation section 100 and the cold air passing through the condensation section 200 are difficult to interfere with each other and cause heat cross-talk, thereby improving the heat exchange efficiency of the integrated heat exchange device.

[0025] It should be noted that, although the solution of vertically arranging the first direction and the second direction solves the problem of hot air and cold air interfering with each other and generating heat, since the airflow direction of the first external air duct 120 and the airflow direction of the second external air duct 220 are arranged vertically, the evaporation channel 111 and the condensation channel 211 are also arranged vertically, and in order to speed up heat dissipation, the evaporation flat tube 110 and the condensation flat tube 210 are both flat, therefore, the evaporation channel 111 and the condensation channel 211 are arranged vertically, which will greatly reduce the overlap area of ​​the evaporation channel 111 and the condensation channel 211 in the preset direction.

[0026] At this time, when the steam from the evaporation channel 111 enters the condensation channel 211 through the transition chamber 310, the area where the evaporation section 100 and the condensation section 200 are oppositely arranged and connected is reduced, and the steam needs to change its flow direction when entering other areas of the condensation channel 211. This will cause the resistance to the steam rising to increase significantly, and at this time, the heat exchange efficiency of the integrated heat exchange device will also decrease.

[0027] Therefore, in order to solve the problem that the resistance to the rise of steam is significantly increased due to the vertical arrangement of the evaporation channel 111 and the condensation channel 211, the present application provides a further optimized technical solution, which is as follows: In one embodiment, if Figure 4-Figure 6 As shown, the channel width A of each evaporation channel 111 along the first direction, the maximum distance B of different condensation channels 211 of the condensation section 200 along the first direction, and the channel length C of the transition chamber 310 along the first direction satisfy C≥A=B.

[0028] It should be noted that "the maximum distance between different condensation channels 211 of the condensation section 200 along the first direction" refers to the maximum distance between two condensation channels 211 arranged at the end of the condensation section 200 along the first direction, and the maximum distance includes the thickness of the two condensation channels 211 at the end.

[0029] like Figure 4-Figure 6As shown, the channel width D of each condensation channel 211 along the second direction, the maximum distance E of different evaporation channels 111 of the evaporation section 100 along the second direction, and the channel length F of the transition chamber 310 along the second direction satisfy F≥D=E.

[0030] It should be noted that “the maximum distance between different evaporation channels 111 of the evaporation section 100 along the second direction” refers to the maximum distance between two evaporation channels 111 arranged at the end of the evaporation section 100 along the second direction, and the maximum distance includes the thickness of the two evaporation channels 111 at the end.

[0031] First, in the present solution, the evaporating flat tubes 110 and the condensing flat tubes 210 are still flat, so the heat dissipation efficiency of the evaporating flat tubes 110 and the condensing flat tubes 210 themselves will not be reduced.

[0032] Further, by increasing the channel width A of the evaporation channel 111 along the first direction, it reaches the length of the maximum distance B of different condensation channels 211 of the condensation section 200 along the first direction, and increasing the channel width D of the condensation channel 211 along the second direction, it reaches the length of the maximum distance E of different evaporation channels 111 of the evaporation section 100 along the second direction. In combination with the arrangement of multiple evaporation channels 111 along the second direction and the arrangement of multiple condensation channels 211 along the first direction, it can be known that the orthographic projections of the multiple evaporation channels 111 on the plane perpendicular to the preset direction and the orthographic projections of the multiple condensation channels 211 on the plane perpendicular to the preset direction can form a grid structure that covers each other. At this time, on the one hand, the number of overlapping areas between the evaporation channel 111 and the condensation channel 211 in the preset direction will increase greatly, thereby greatly increasing the total area of ​​the overlapping areas between the evaporation channel 111 and the condensation channel 211 in the preset direction; on the other hand, the overlapping areas between the evaporation channel 111 and the condensation channel 211 in the preset direction can cover the entire cross-section of the integrated heat exchange device, so that the steam rising from each position of the evaporation channel 111 can quickly pass through the corresponding overlapping areas and enter the condensation channel 211, thereby greatly reducing the rising resistance of the steam in the entire integrated heat exchange device.

[0033] Furthermore, since C is larger than A and B, and F is larger than D and E, it can be seen that the transition chamber 310 will not hinder the rise of steam.

[0034] In summary, this solution can solve the problem of hot air and cold air interfering with each other and causing heat transfer, and further overcome the defect that the resistance to steam rising is significantly increased due to the vertical arrangement of the evaporation channel 111 and the condensation channel 211, thereby greatly improving the technical practicality of the entire solution.

[0035] Furthermore, in one embodiment, the cross section of the transition cavity 310 perpendicular to the preset direction is square, and A=B=C=D=E=F.

[0036] Such an arrangement makes the flow length of the first external air passage 120 equal to the flow length of the second external air passage 220 , which is beneficial to matching the heat exchange between the evaporation section 100 and the condensation section 200 .

[0037] But not limited to this, in other embodiments, the cross-section of the transition chamber 310 perpendicular to the preset direction can also be rectangular (in addition to square), and the flow length of the first external air duct 120 can be greater than the flow length of the second external air duct 220, and the flow length of the first external air duct 120 can also be less than the flow length of the second external air duct 220.

[0038] In one embodiment, adjacent evaporation flat tubes 110 are arranged in parallel or approximately in parallel.

[0039] In this way, the airflows in the first external air passages 120 can flow in parallel, thereby preventing the airflows from being disturbed.

[0040] In one embodiment, adjacent condensation flat tubes 210 are arranged in parallel or approximately in parallel.

[0041] In this way, the airflows in the second external air passages 220 can flow in parallel, thereby preventing the airflows from being disturbed.

[0042] In one embodiment, one end of the evaporation channel 111 close to the condensation section 200 is in a flared shape, and one end of the condensation channel 211 close to the evaporation section 100 is in a flared shape.

[0043] Such an arrangement further increases the total area of ​​the overlapping region of the evaporation channel 111 and the condensation channel 211 in a preset direction, that is, the resistance of the vapor entering the condensation channel 211 from the evaporation channel 111 can be further reduced.

[0044] In one embodiment, the condensation section 200 also includes a guide strip in the shape of a pointed cone (not shown), the bottom of which is connected to the outer wall of the second external air duct 220 on the side facing the evaporation section 100, and the tip of the guide strip extends in a direction close to the evaporation section 100 so that the vapor can be diverted by the guide strip to the adjacent condensation channel 211.

[0045] Such an arrangement can reduce the resistance of steam entering each condensation channel 211 of the condensation section 200.

[0046] In one embodiment, if Figure 1-Figure 2As shown, the integrated heat exchange device also includes a first connecting portion 500 and a second connecting portion 600. The first connecting portion 500 is arranged at one end of the evaporation section 100 away from the condensation section 200 and connects each evaporation channel 111. The second connecting portion 600 is arranged at one end of the condensation section 200 away from the evaporation section 100 and connects each condensation channel 211.

[0047] Specifically, the height of the first connecting portion 500 or the second connecting portion 600 along the preset direction is 10 mm to 30 mm, and the height of the connecting section 300 along the preset direction is 10 mm to 50 mm.

[0048] This is beneficial to the pressure balance of each evaporation channel 111 in the evaporation section 100 , that is, it is beneficial to the pressure balance of each condensation channel 211 in the condensation section 200 .

[0049] In one embodiment, the integrated heat exchange device is made of aluminum or copper, and the working fluid filled in the integrated heat exchange device is environmentally friendly refrigerant, water, ethylene glycol, acetone and other materials. However, since the flow area of ​​the overall heat exchange channel of the integrated heat exchange device is large, after the above working fluid is vaporized, the gas pressure in the integrated heat exchange device will be too high, which may easily cause cracks and even leakage risks.

[0050] In order to solve the above problem, in one embodiment, the integrated heat exchange device further includes a controller (not shown), a pressure sensor (not shown) and a pressure relief valve (not shown), the pressure sensor is arranged in the transition chamber 310, or the pressure sensor is arranged in the condensation channel 211, or the pressure sensor is arranged in the second connecting portion 600; The pressure relief valve is disposed in the connecting section 300 and communicated with the transition chamber 310, or the pressure relief valve is disposed in the condensing section 200 and communicated with the condensing channel 211, or the pressure relief valve is disposed and communicated with the second communicating portion 600; The controller is electrically connected to the pressure sensor and the pressure relief valve respectively. When the pressure sensor measures that the air pressure value in the integrated heat exchange device is greater than a preset value, the controller can control the pressure relief valve to open. When the pressure sensor measures that the air pressure value in the integrated heat exchange device is less than or equal to the preset value, the controller can control the pressure relief valve to close.

[0051] Such an arrangement can keep the air pressure in the integrated heat exchange device below a preset value, thereby preventing cracks or even leakage caused by excessive pressure.

[0052] In one embodiment, if Figure 3-Figure 5 As shown, a first external fin 121 is disposed in the first external air passage 120 , and two ends of the first external fin 121 are respectively connected to the side walls of the adjacent evaporation flat tubes 110 .

[0053] Such a configuration is conducive to transferring the heat of the hot air to the side walls of the evaporating flat tubes 110 through the first outer fins 121 .

[0054] In one embodiment, if Figure 3-Figure 5 As shown, a first inner fin 112 is disposed in the evaporation channel 111 , and two ends of the first inner fin 112 are respectively connected to inner walls of the evaporation channel 111 that are disposed opposite to each other along the second direction.

[0055] Such a configuration is conducive to transferring the heat of the evaporation flat tubes 110 to the liquid working medium in the evaporation channel 111 through the first inner fins 112 .

[0056] It can be seen from the above that by providing the first outer fins 121 and the first inner fins 112 , the heat transfer efficiency between the hot air and the liquid working medium is greatly improved.

[0057] In one embodiment, if Figure 3-Figure 5 As shown, a second inner fin 212 is disposed in the condensation channel 211 , and two ends of the second inner fin 212 are respectively connected to inner walls of the condensation channel 211 that are disposed opposite to each other along a first direction.

[0058] Such a configuration is conducive to transferring the heat of the gaseous working medium in the condensation channel 211 to the condensation flat tube 210 through the second inner fin 212 .

[0059] In one embodiment, if Figure 3-Figure 5 As shown, a second external fin 221 is provided in the second external air duct 220 , and two ends of the second external fin 221 are respectively connected to the side walls of the adjacent condensation flat tubes 210 .

[0060] Such a configuration is beneficial for transferring the heat of the side wall of the condensation flat tube 210 to the cold air through the second outer fins 221 .

[0061] It can be seen from the above that by providing the second inner fins 212 and the second outer fins 221 , the heat transfer efficiency between the cold air and the gaseous working medium is greatly improved.

[0062] Further, in one embodiment, the first inner fin 112 and the second inner fin 212 have the same structure, and the first outer fin 121 and the second outer fin 221 have the same structure.

[0063] In one embodiment, the sum of the total area of ​​the first outer fins 121 and the total area of ​​the second outer fins 221 is greater than the sum of the total area of ​​the first inner fins 112 and the total area of ​​the second inner fins 212 .

[0064] In this way, the heat transfer efficiency of external air cooling and the heat transfer efficiency of internal liquid cooling tend to be consistent, which is beneficial to ensure the maximization of the overall heat exchange efficiency.

[0065] In one embodiment, if Figure 7As shown, a plurality of reinforcing ribs 400 are disposed in the transition cavity 310 , each reinforcing rib 400 is respectively fixedly connected to the inner wall of the transition cavity 310 , and each reinforcing rib 400 extends along a plane perpendicular to a preset direction.

[0066] Such an arrangement can increase the structural strength of the connecting section 300 .

[0067] Specifically, the reinforcing ribs 400 may be in various shapes such as a tic-tac-toe shape, a grid shape, a cross shape, or a convex shape, which are not listed here one by one.

[0068] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

[0070] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0071] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0072] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0073] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0074] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0075] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

Claims

1. An integrated heat exchange device, characterized in that: The invention comprises an evaporation section (100), a connection section (300) and a condensation section (200) which are sequentially arranged and connected along a preset direction, the evaporation section (100) comprising a plurality of evaporation flat tubes (110) arranged along a second direction, the evaporation flat tubes (110) being provided with evaporation channels (111), the condensation section (200) comprising a plurality of condensation flat tubes (210) arranged along a first direction, the condensation flat tubes (210) being provided with condensation channels (211), the connection section (300) being provided with a transition cavity (310), and the respective evaporation channels (111) being connected to the respective condensation channels (211) via the transition cavity (310); Adjacent evaporation flat tubes (110) are spaced apart to form a first external air duct (120) that is arranged through along a first direction, and adjacent condensation flat tubes (210) are spaced apart to form a second external air duct (220) that is arranged through along a second direction, and the first direction, the second direction and the preset direction are arranged perpendicular to each other.

2. The integrated heat exchange device according to claim 1, characterized in that: A channel width A of each evaporation channel (111) along the first direction, a maximum distance B of different condensation channels (211) of the condensation section (200) along the first direction, and a channel length C of the transition chamber (310) along the first direction satisfy C≥A=B; A channel width D of each of the condensation channels (211) along the second direction, a maximum distance E of different evaporation channels (111) of the evaporation section (100) along the second direction, and a channel length F of the transition chamber (310) along the second direction satisfy F≥D=E.

3. The integrated heat exchange device according to claim 2, characterized in that: The cross section of the transition cavity (310) perpendicular to the preset direction is square, and A=B=C=D=E=F.

4. The integrated heat exchange device according to claim 1, characterized in that: One end of the evaporation channel (111) close to the condensation section (200) is in a flared shape, and one end of the condensation channel (211) close to the evaporation section (100) is in a flared shape.

5. The integrated heat exchange device according to claim 1, characterized in that: The condensation section (200) further comprises a guide strip in the shape of a pointed cone, the bottom of the guide strip being connected to the outer wall of the second external air channel (220) on the side facing the evaporation section (100), and the tip of the guide strip extending in a direction close to the evaporation section (100), so that the steam can be diverted by the guide strip to the adjacent condensation channel (211).

6. The integrated heat exchange device according to claim 1, characterized in that: The device further comprises a first connecting portion (500) and a second connecting portion (600), wherein the first connecting portion (500) is arranged at one end of the evaporation section (100) away from the condensation section (200) and is connected to each of the evaporation channels (111), and the second connecting portion (600) is arranged at one end of the condensation section (200) away from the evaporation section (100) and is connected to each of the condensation channels (211).

7. The integrated heat exchange device according to claim 6, characterized in that: It also includes a controller, a pressure sensor and a pressure relief valve, wherein the pressure sensor is arranged in the transition chamber (310), or the pressure sensor is arranged in the condensation channel (211), or the pressure sensor is arranged in the second connecting portion (600); The pressure relief valve is arranged at the connecting section (300) and is connected to the transition chamber (310), or the pressure relief valve is arranged at the condensing section (200) and is connected to the condensing channel (211), or the pressure relief valve is arranged and is connected to the second connecting portion (600); The controller is electrically connected to the pressure sensor and the pressure relief valve respectively. When the pressure sensor measures that the air pressure value in the integrated heat exchange device is greater than a preset value, the controller can control the pressure relief valve to open. When the pressure sensor measures that the air pressure value in the integrated heat exchange device is less than or equal to the preset value, the controller can control the pressure relief valve to close.

8. The integrated heat exchange device according to claim 1, characterized in that: A first external fin (121) is provided in the first external air passage (120), and two ends of the first external fin (121) are respectively connected to the side walls of the adjacent evaporation flat tubes (110); And / or, a first inner fin (112) is provided in the evaporation channel (111), and two ends of the first inner fin (112) are respectively connected to inner walls of the evaporation channel (111) that are arranged opposite to each other along the second direction; And / or, a second inner fin (212) is provided in the condensation channel (211), and two ends of the second inner fin (212) are respectively connected to inner walls of the condensation channel (211) that are arranged opposite to each other along the first direction; And / or, a second external fin (221) is provided in the second external air duct (220), and two ends of the second external fin (221) are respectively connected to the side walls of the adjacent condensation flat tube (210).

9. The integrated heat exchange device according to claim 8, characterized in that: The sum of the total area of ​​the first outer fins (121) and the total area of ​​the second outer fins (221) is greater than the sum of the total area of ​​the first inner fins (112) and the total area of ​​the second inner fins (212).

10. The integrated heat exchange device according to claim 1, characterized in that: A plurality of reinforcing ribs (400) are provided in the transition cavity (310), each of the reinforcing ribs (400) is respectively fixedly connected to an inner side wall of the transition cavity (310), and each of the reinforcing ribs (400) extends along a plane perpendicular to a preset direction.

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