Heat exchange device and falling film type heat exchange device

Abstract

The invention discloses a heat exchange device and a falling film type heat exchange device. The heat exchange device comprises at least one heat exchange sub-assembly and at least one liquid supply pipeline. The heat exchange sub-assembly comprises a distribution assembly and a heat exchange tube assembly. The distribution assembly is provided with a distribution inlet and a plurality of distribution outlets, and is configured to enable liquid flowing into the distribution assembly from the distribution inlet to flow out from the plurality of distribution outlets. And the heat exchange tube assembly is arranged below the distribution assembly, so that liquid dripped from the plurality of distribution outlets can be sprayed onto the heat exchange tube assembly. And the liquid supply pipeline and the heat exchange sub-assembly are correspondingly arranged, so that liquid can enter the distribution assembly through the liquid supply pipeline. The heat exchange device is simple in structure and high in dripping efficiency.

Description

Technical Field

[0001] The present application relates to a heat exchange device, and particularly to a falling film heat exchange device. Background Art

[0002] The heat exchange device includes several rows of heat exchange tubes. When the liquid drips onto the heat exchange tubes, it exchanges heat with the fluid in the heat exchange tubes, thereby evaporating into gas. However, the thickness of the liquid dripping onto the heat exchange tubes will affect the heat exchange efficiency. Summary of the invention

[0003] Exemplary embodiments of the present application may address at least some of the above-mentioned problems.

[0004] According to a first aspect of the present application, the present application provides a heat exchange device. The heat exchange device includes at least one group of heat exchange subassemblies and at least one liquid supply pipeline. The heat exchange subassembly includes a distribution assembly and a heat exchange tube assembly. The distribution assembly has a distribution inlet and a plurality of distribution outlets, and is configured to allow liquid flowing into the distribution assembly from the distribution inlet to flow out from the plurality of distribution outlets. The heat exchange tube assembly is arranged below the distribution assembly so that liquid dripping from the plurality of distribution outlets can drip onto the heat exchange tube assembly. The liquid supply pipeline is arranged corresponding to the heat exchange subassembly so that liquid can enter the distribution assembly through the liquid supply pipeline.

[0005] According to the heat exchange device of the first aspect, the distribution assembly includes a plurality of sub-cavities. The sub-cavities are in fluid communication with at least one of the plurality of distribution outlets, so that the liquid in each sub-cavity can flow out through the distribution outlet. At least one of the plurality of sub-cavities is in communication with the distribution inlet. At least two of the plurality of sub-cavities are arranged along the length direction of the heat exchange device.

[0006] According to the heat exchange device of the first aspect above, at least two of the plurality of sub-cavities are arranged along the width direction of the heat exchange device.

[0007] According to the heat exchange device of the first aspect, the distribution assembly includes at least one first partition plate, which is arranged along the width direction of the heat exchange device to form the sub-cavity. The first partition plate is provided with a first communication port, which is located at the bottom of the first partition plate, so that two adjacent sub-cavities in the width direction of the heat exchange device are connected.

[0008] According to the heat exchange device of the first aspect, the distribution assembly further comprises at least one second partition plate, which is arranged along the length direction of the heat exchange device to form the sub-cavity. A second communication port is provided on the second partition plate, and the second communication port is located at the bottom of the second partition plate, so that two adjacent sub-cavities in the length direction of the heat exchange device are connected.

[0009] According to the heat exchange device of the first aspect, each of the plurality of sub-cavities has a sub-cavity inlet, and the sub-cavity inlet is in fluid communication with the distribution inlet, wherein the sub-cavity inlet is formed extending along the width direction of the heat exchange device.

[0010] According to the heat exchange device of the first aspect, the distribution assembly further comprises an array of tilted assemblies, and the tilted assemblies and the sub-cavities are arranged correspondingly. The tilted assemblies comprise a first tilted plate and a second tilted plate, and the first tilted plate and the second tilted plate are tilted in opposite directions, thereby forming the sub-cavity entrance. The directions of the two adjacent sub-cavity entrances are opposite.

[0011] According to the heat exchange device of the first aspect above, the liquid supply pipeline extends into the distribution assembly, so that the liquid in the liquid supply pipeline enters the distribution assembly.

[0012] The present application also provides a falling film heat exchange device, which includes a generator, a condenser and a connecting channel. The generator includes a heat exchange device as described in any one of claims 1 to 4. The connecting channel connects the generator and the condenser, so that the liquid is converted into gas by the heat exchange tube assembly and enters the condenser through the connecting channel.

[0013] According to the falling film heat exchange device of the second aspect, the distribution assembly includes a plurality of sub-cavities. The sub-cavities are in fluid communication with at least one of the plurality of distribution outlets, so that the liquid in each sub-cavity can flow out through the distribution outlet. At least one of the plurality of sub-cavities is in communication with the distribution inlet. At least two of the plurality of sub-cavities are arranged along the width direction of the heat exchange device, and the outlet of the liquid supply pipeline is arranged in the sub-cavity close to the condenser.

[0014] The heat exchange device of the present application has a simple structure and high dripping efficiency. Specifically, the heat exchange device of the present application includes at least one group of heat exchange sub-assemblies. In each group of heat exchange sub-assemblies, the heat exchange tube assembly is arranged below the distribution assembly, which can reduce the height of the heat exchange tube located below the distribution assembly, so as to divide the overall height of the heat exchange device into several heat exchange tube assemblies with lower heights, thereby improving the dripping efficiency of the heat exchange tubes in each heat exchange tube assembly. In addition, each group of heat exchange sub-assemblies is provided with a corresponding liquid supply pipeline, which can replenish liquid for the heat exchange tube located below, thereby improving the overall heat exchange efficiency of the heat exchange device.

[0015] The heat exchange device of the present application can reduce the installation accuracy requirements and adapt to the oscillating environment. Specifically, the heat exchange device of the present application includes at least one group of heat exchange sub-assemblies. Therefore, even in a tilted state / oscillating environment, at least a portion of the heat exchange tubes of each group of heat exchange sub-assemblies can contact the liquid dripping from the distribution assembly. In addition, the distribution assembly of the present application includes several sub-cavities. Even if the heat exchange device is in a tilted state / oscillating environment, the liquid in each sub-cavity is not easy to surge over a long distance, so that at least a portion of the liquid in each sub-cavity will be retained in the sub-cavity and drip downward, so that the heat exchange device maintains a high heat exchange efficiency in an oscillating environment. Furthermore, since the distribution assembly of the present application also includes an array of tilting assemblies, it is possible to prevent the liquid from overflowing from the distribution assembly due to oscillation after entering the distribution assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The features and advantages of the present application may be better understood by reading the following detailed description with reference to the accompanying drawings, in which like reference numerals refer to like components throughout, wherein:

[0017] Figure 1 is a three-dimensional diagram of the heat exchange device of the present application;

[0018] Figure 2 Yes Figure 1 The heat exchange device shown is along Figure 1 Sectional view along line AA;

[0019] Figure 3A-3B They are Figure 2 The inlet dispensing container is shown in perspective view from two different angles;

[0020] Figure 4 yes Figure 2 a perspective view of the dispensing assembly shown;

[0021] Figure 5A yes Figure 4 A cross-sectional view of the distribution assembly shown along the length direction of the heat exchange device;

[0022] Figure 5B yes Figure 4A cross-sectional view of the distribution assembly shown along the width direction of the heat exchange device;

[0023] Figure 6 It is a cross-sectional view of an embodiment of a falling film heat exchange device. DETAILED DESCRIPTION

[0024] Various specific embodiments of the present application will be described below with reference to the accompanying drawings that form a part of this specification. It should be understood that although terms indicating directions, such as "upper", "lower", etc., are used in this application to describe various example structural parts and elements of the present application, these terms are used here only for the purpose of convenience of description, and these terms are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this application can be arranged in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations.

[0025] Ordinal numbers such as "first" and "second" used in this application are only used for distinction and identification, and do not have any other meanings. If not specifically specified, they do not indicate a specific order or have a specific association. For example, the term "first inclined plate" itself does not imply the existence of a "second inclined plate", and the term "second inclined plate" itself does not imply the existence of a "first inclined plate".

[0026] Figure 1 is a three-dimensional diagram of the heat exchange device of the present application. Figure 1 As shown, the heat exchange device of the present application includes a shell 102, an input pipe 101, four sets of heat exchange subassemblies 103 and four liquid supply pipelines 104. The shell 102 defines a shell cavity 202 (see Figure 2 ). Four groups of heat exchange sub-assemblies 103 are arranged in the shell cavity 202. The input pipe 101 is connected to the shell 102, so that the liquid can enter the shell cavity 202 through the input pipe 101. Four liquid supply pipelines 104 are connected to the input pipe 101 and are correspondingly arranged with the four groups of heat exchange sub-assemblies 103, so that each liquid supply pipeline 104 provides liquid for each group of heat exchange sub-assemblies 103.

[0027] Figure 2 Yes Figure 1 The heat exchange device shown is arranged along the height direction of the heat exchange device (i.e., along the Figure 1 The cross-sectional view taken along the AA line in the middle of the heat exchange device is shown to show the specific structure of the heat exchange device in the width direction. Figure 2As shown, the heat exchange device also includes an inlet distribution container 211 and an inlet heat exchange tube assembly 212. The inlet distribution container 211 has an inlet distribution container inlet 231 and a plurality of inlet distribution container outlets 232. Specifically, the inlet distribution container 211 is roughly a hollow rectangular parallelepiped. The inlet distribution container inlet 231 is connected to the outlet of the input pipe 101, so that the liquid can enter the inlet distribution container 211 through the input pipe 101. The inlet distribution container inlet 231 is arranged at the top of the inlet distribution container 211. Several inlet distribution container outlets 232 are arranged at the bottom of the inlet distribution container 211 and arranged in a rectangular shape. The length and width of the inlet distribution container 211 are roughly equivalent to the length and width of the shell 102, and the plurality of inlet distribution container outlets 232 are evenly arranged at the bottom of the inlet distribution container 211. This enables the liquid entering from the inlet distribution container inlet 231 to be as evenly distributed as possible in the length direction and the width direction. The inlet heat exchange tube assembly 212 includes a plurality of heat exchange tubes. The plurality of heat exchange tubes are formed extending along the length direction of the heat exchange device and arranged along the width and height directions of the heat exchange device to form a plurality of rows in the height direction. In the present application, the plurality of heat exchange tubes are arranged in five rows in the height direction of the heat exchange device. In the width direction of the heat exchange device, each inlet distribution container outlet 232 is aligned with the heat exchange tube below it, so that the liquid flowing out of the inlet distribution container outlet 232 can drip on the heat exchange tube below it by gravity.

[0028] like Figure 2 As shown, four groups of heat exchange subassemblies 103 are arranged below the heat exchange tube assembly 212 at the inlet, and the four groups of heat exchange subassemblies 103 are arranged along the height direction of the heat exchange device. Each group of heat exchange subassemblies 103 includes a distribution assembly 204 and a heat exchange tube assembly 206. The distribution assembly 204 has a distribution inlet 203 and a plurality of distribution outlets 205, and is configured to allow the liquid flowing into the distribution assembly 204 from the distribution inlet 203 to flow out from the plurality of distribution outlets 205. The heat exchange tube assembly 206 is arranged below the distribution assembly 204, so that the liquid flowing out from the plurality of distribution outlets 205 can drip on the heat exchange tube assembly 206. The heat exchange tube assembly 206 includes a plurality of heat exchange tubes. The plurality of heat exchange tubes are arranged along the height direction of the heat exchange device to form a plurality of rows in the height direction, so that the liquid flowing out from the distribution outlet 205 can drip on the heat exchange tube located above and then drip on the heat exchange tube located below for heat exchange. In the present application, the multiple heat exchange tubes in the three upper heat exchange subassemblies 103 are arranged in four rows along the height direction of the heat exchange device. The multiple heat exchange tubes in the bottom heat exchange subassembly 103 are arranged in twelve rows along the height direction of the heat exchange device.

[0029] Figure 3A-3B They are Figure 2The inlet distribution container 211 is shown in a three-dimensional view from two different angles. Figure 3A-3B As shown, the inlet distribution container 211 is roughly a hollow rectangular parallelepiped. The inlet distribution container inlet 231 is located at the center of the upper surface of the inlet distribution container 211. Several inlet distribution container outlets 232 are located on the lower surface of the inlet distribution container 211. In the present application, the several inlet distribution container outlets 232 are arranged in six rows in the width direction of the heat exchange device, so as to correspond to the six rows of heat exchange tubes located below them.

[0030] Figure 4 yes Figure 2 A perspective view of the dispensing assembly 204 is shown. Figure 4 As shown, the distribution assembly 204 includes a first plate 441 and a second plate 442 extending in the length direction of the heat exchange device, a third plate 443 and a fourth plate 444 extending in the width direction of the heat exchange device, and a bottom plate 445 located at the bottom. The first plate 441, the third plate 443, the second plate 442 and the fourth plate 444 are connected in sequence to form a side portion. The first plate 441, the third plate 443, the second plate 442 and the fourth plate 444 are arranged above the bottom plate 445 and connected to the bottom plate 445, thereby forming a cavity in the distribution assembly 204 and a distribution inlet 203 located above the distribution assembly 204.

[0031] like Figure 4 As shown, the distribution component 204 includes two first partition plates 411 and three second partition plates 412. Each of the two first partition plates 411 is formed to extend along the length direction of the heat exchange device, and is connected to the third plate 443 and the fourth plate 444 along the length direction of the heat exchange device. The two first partition plates 411 are arranged along the width direction of the heat exchange device and are evenly arranged. Each of the three second partition plates 412 is formed to extend along the width direction of the heat exchange device, and is connected to the first plate 441 and the second plate 442 along the width direction of the heat exchange device. The three second partition plates 412 are arranged along the length direction of the heat exchange device and are evenly arranged. The two first partition plates 411 and the three second partition plates 412 divide the cavity in the distribution component 204 into twelve sub-cavities 402.

[0032] like Figure 4As shown, the distribution component 204 also includes twelve groups of inclined components. The twelve groups of inclined components are arranged corresponding to the twelve sub-cavities 402. Each group of inclined components includes a first inclined plate 431 and a second inclined plate 432. The first inclined plate 431 and the second inclined plate 432 are inclined in opposite directions and are arranged at a distance to form a sub-cavity inlet 421. In the width direction and the length direction of the heat exchange device, the sub-cavity inlets 421 of two adjacent sub-cavities 402 are oriented in opposite directions. The sub-cavity inlet 421 is connected to the distribution inlet 203 of the distribution component 204, so that the liquid flowing in from the distribution inlet 203 can enter each sub-cavity 402 through the sub-cavity inlet 421. Each sub-cavity 402 is connected to its two adjacent sub-cavities 402, so that the liquid can not only enter each sub-cavity 402 through the sub-cavity inlet 421, but also flow into the adjacent sub-cavity 402 after entering the sub-cavity 402, thereby making the amount of liquid in each sub-cavity 402 in the distribution component 204 more even.

[0033] Combine the following Figure 5A and Figure 5B To describe the structural details of the allocation component 204:

[0034] Figure 5A yes Figure 4 The cross-sectional view of the distribution assembly 204 along the length direction of the heat exchange device is shown. Figure 5B yes Figure 4 The cross-sectional view of the distribution assembly 204 along the width direction of the heat exchange device is shown. Figure 5A As shown, the first partition plate 411 is provided with a first communication port 451. The first communication port 451 is located at the bottom of the first partition plate 411, so that two adjacent sub-cavities 402 are connected in the width direction of the heat exchange device. Figure 5B As shown, the second partition plate 412 is provided with a second communication port 452. The second communication port 452 is located at the bottom of the second partition plate 412, so that two adjacent sub-cavities 402 are connected in the length direction of the heat exchange device.

[0035] like Figure 5AAs shown, each sub-cavity 402 is provided with a first inclined plate 431 and a second inclined plate 432. For ease of description, the extension direction of the first inclined plate 431 and the second inclined plate 432 is referred to as the inclined direction. In the present application, the inclination directions of the first inclined plate 431 and the second inclined plate 432 are substantially the same, but the inclination directions are opposite. Specifically, the inclination direction of the first inclined plate 431 is from the upper left to the lower right, while the inclination direction of the second inclined plate 432 is from the lower left to the upper right. In the width direction of the heat exchange device, the first inclined plate 431 and the second inclined plate 432 in the sub-cavity 402 are connected to the side or the first partition plate 411 enclosing the sub-cavity 402. In the length direction of the heat exchange device, the higher end of the first inclined plate 431 in the sub-cavity 402 is connected to the side / second partition plate 412 enclosing the sub-cavity 402, and the higher end of the second inclined plate 432 in the sub-cavity 402 is connected to the side / second partition plate 412 enclosing the sub-cavity 402. The lower end of the first inclined plate 431 and the lower end of the second inclined plate 432 are arranged at a distance, thereby forming a sub-cavity inlet 421. The sub-cavity inlet 421 extends along the width direction of the heat exchange device. In the present application, the projections of the first inclined plate 431 and the second inclined plate 432 in the height direction of the heat exchange device at least partially overlap, thereby preventing the liquid from overflowing from the sub-cavity inlet 421 after the liquid enters the sub-cavity inlet 421. For ease of description, in this application, the opening between the lower end of the upper inclined plate (e.g., the second inclined plate 432) and the lower inclined plate (e.g., the first inclined plate 431) in its extension direction is referred to as the sub-cavity inlet 421, and the extension direction of the upper inclined plate (e.g., the second inclined plate 432) is referred to as the direction of the sub-cavity inlet 421. In this application, the directions of the two adjacent sub-cavity inlets 421 are opposite. This arrangement can make the adjacent sub-cavities 402 have different overflow directions. As an example, when the heat exchange device is located in an oscillating environment (e.g., on a ship) and tilted toward one side, when the liquid in one of the adjacent sub-cavities 402 overflows through the sub-cavity inlet 421, the liquid in the other sub-cavity 402 can be retained in the sub-cavity 402. In addition, in the length direction of the heat exchange device, the sub-cavity inlet 421 is approximately arranged at 1 / 3 of the sub-cavity 402.

[0036] like Figure 5A-Figure 5B As shown, a plurality of distribution outlets 205 are provided on the bottom plate 445 of the distribution assembly 204. The distribution outlets 205 are in communication with the sub-cavity 402, so that the liquid in the sub-cavity 402 can flow out through the distribution outlets 205. The arrangement of the plurality of distribution outlets 205 and the heat exchange tubes in the heat exchange tube assembly 206 disposed thereunder is similar to the arrangement of the plurality of inlet distribution container outlets 232 and the inlet heat exchange tube assembly 212 disposed thereunder, and will not be described in detail herein.

[0037] Continue back Figure 2 , the liquid supply pipeline 104 is provided corresponding to each distribution assembly 204. The liquid supply pipeline 104 extends into the distribution assembly 204, and the outlet of the liquid supply pipeline 104 is provided in the sub-cavity 402, so that the liquid in the liquid supply pipeline 104 enters the distribution assembly 204. In the present application, the liquid supply pipeline 104 can extend into any of the above-mentioned sub-cavities 402, so that when the liquid dripping onto the heat exchange tube in the heat exchange tube assembly 206 after entering the sub-cavity 402 through the sub-cavity inlet 421 is insufficient, the distribution assembly 204 is supplemented with liquid.

[0038] In addition, a control valve 106 may be provided on each liquid supply pipeline 104, and a liquid level detection device (not shown) may be provided in the distribution assembly 204. The control valve 106 is configured to control the opening of the control valve 106 according to the current liquid level detected by the liquid level detection device. As an example, the liquid level detection device is a float level gauge.

[0039] It should be noted that, although the present application shows that the outlet of the liquid supply pipeline 104 is arranged in the sub-cavity 402, in other embodiments, the outlet of the liquid supply pipeline 104 may also be arranged above the distribution component 204, so that the liquid in the liquid supply pipeline 104 enters the sub-cavity 402 through the distribution inlet 203 of the distribution component 204.

[0040] It should be noted that, although four groups of heat exchange sub-assemblies are shown in the present application, all heat exchange devices including at least one group of heat exchange sub-assemblies are within the protection scope of the present application.

[0041] It should also be noted that, although in the embodiment shown in the present application, four sub-cavities 402 are arranged in the length direction of the heat exchange device and three sub-cavities 402 are arranged in the width direction of the heat exchange device, heat exchange devices in which at least two sub-cavities 402 are arranged in the length direction of the heat exchange device and / or at least two sub-cavities 402 are arranged in the width direction of the heat exchange device are all within the protection scope of the present application. In other words, the distribution assembly 204 includes at least one first partition plate 411 and / or a second partition plate 412, which are all within the protection scope of the present application.

[0042] It should also be noted that, although twelve sub-cavities 402 are shown in the present application, heat exchange devices including at least two sub-cavities 402 are within the protection scope of the present application.

[0043] It should also be noted that, although the present application shows that each sub-cavity 402 is connected to the distribution inlet 203, heat exchange devices in which at least one sub-cavity 402 is connected to the distribution inlet 203 are within the protection scope of the present application.

[0044] It should also be noted that, although the present application shows that a tilting component is provided in each sub-cavity 402 , in other embodiments, at least one sub-cavity 402 may not be provided with a tilting component.

[0045] The inventors of the present application discovered that in the prior art, since the heat exchange tubes are arranged below the distribution device and are arranged at a relatively high height, the dripping liquid is unevenly distributed on the heat exchange tubes in the height direction, and the dripping efficiency of the heat exchange tubes located below is relatively low.

[0046] The heat exchange device of the present application has a simple structure and high dripping efficiency. Specifically, the heat exchange device of the present application includes at least one group of heat exchange sub-assemblies. In each group of heat exchange sub-assemblies, the heat exchange tube assembly is arranged below the distribution assembly, which can reduce the height of the heat exchange tube located below the distribution assembly, so as to divide the overall height of the heat exchange device into several heat exchange tube assemblies with lower heights, thereby improving the dripping efficiency of the heat exchange tubes in each heat exchange tube assembly. In addition, each group of heat exchange sub-assemblies is provided with a corresponding liquid supply pipeline, which can replenish liquid for the heat exchange tube located below, thereby improving the overall heat exchange efficiency of the heat exchange device.

[0047] The heat exchange device of the present application can reduce the installation accuracy requirements and adapt to the oscillating environment. Specifically, the heat exchange device of the present application includes at least one group of heat exchange sub-assemblies. Therefore, even in a tilted state / oscillating environment, at least a portion of the heat exchange tubes of each group of heat exchange sub-assemblies can contact the liquid dripping from the distribution assembly. In addition, the distribution assembly of the present application includes several sub-cavities. Even if the heat exchange device is in a tilted state / oscillating environment, the liquid in each sub-cavity is not easy to surge over a long distance, so that at least a portion of the liquid in each sub-cavity will be retained in the sub-cavity and drip downward, so that the heat exchange device maintains a high heat exchange efficiency in an oscillating environment. Furthermore, since the distribution assembly of the present application also includes an array of tilting assemblies, it is possible to prevent the liquid from overflowing from the distribution assembly due to oscillation after entering the distribution assembly.

[0048] Figure 6 FIG. 1 is a cross-sectional view of an embodiment of a falling film heat exchange device. Figure 6As shown, the falling film heat exchange device includes a generator 601 and a condenser 602. The generator 601 and the condenser 602 are arranged adjacent to each other. The generator 601 includes the above-mentioned heat exchange device. In other words, in this embodiment, the heat exchange device is applied as a generator in the falling film heat exchange device. The condenser 602 is arranged on one side of the heat exchange device along the width direction. A connecting channel 603 is provided between the generator 601 and the condenser 602. The connecting channel 603 can connect the generator 601 and the condenser 602, so that the liquid exchanges heat with the heat exchange tube assembly 212 and the heat exchange tube assembly 206 at the inlet to become gas and then enters the condenser 602 through the connecting channel 603. The condenser 602 is configured to cool the gas. The outlet of the liquid supply pipeline 104 is arranged in the sub-chamber 402 close to the condenser 602.

[0049] The advantages of the heat exchange device of the present application being applied in a falling film heat exchange device are described below by taking the liquid in the falling film heat exchange device as a lithium bromide solution as an example:

[0050] refer to Figure 6 As shown, the lithium bromide dilute solution enters the inlet distribution container 211 through the input pipe 101 and drips on the inlet heat exchange tube assembly 212. After the lithium bromide dilute solution and the inlet heat exchange tube assembly 212 are heat exchanged, the lithium bromide concentration increases, and the lithium bromide concentration gradually increases in the process of gradually flowing downward and passing through several heat exchange tube assemblies 206. In the present application, the outlet of the liquid supply pipeline 104 is arranged in the sub-chamber 402 near the condenser 602, which enables the lithium bromide dilute solution to enter each distribution assembly 204. In other words, the concentration of the lithium bromide dilute solution near the side of the connecting channel 603 is lower than the concentration of the lithium bromide dilute solution away from the side of the connecting channel 603. When heat exchanging with the inlet heat exchange tube assembly 212, the dilute solution can produce more gas than the concentrated solution, so the lithium bromide dilute solution near the side of the connecting channel 603 flows to the condenser 602. The distance required is shorter, which can effectively reduce the pressure in the generator 601, thereby improving the heat exchange efficiency of the generator 601.

[0051] Although the present disclosure has been described in conjunction with the examples of the embodiments summarized above, various alternatives, modifications, changes, improvements and / or substantially equivalent solutions, whether known or currently or foreseeable in the near future, may be apparent to those of ordinary skill in the art. In addition, the technical effects and / or technical problems described in this specification are exemplary rather than restrictive; so the disclosure in this specification may be used to solve other technical problems and have other technical effects and / or may solve other technical problems. Therefore, the examples of the embodiments of the present disclosure as stated above are intended to be illustrative rather than restrictive. Various changes may be made without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure is intended to include all known or earlier developed alternatives, modifications, changes, improvements and / or substantially equivalent solutions.

Claims

1. A heat exchange device, characterized in that: The heat exchange device comprises: At least one set of heat exchange subassemblies, the heat exchange subassemblies comprising: A distribution component (204), the distribution component (204) having a distribution inlet (203) and a plurality of distribution outlets (205), and configured to allow the liquid flowing into the distribution component (204) from the distribution inlet (203) to flow out from the plurality of distribution outlets (205); and A heat exchange tube assembly (206), wherein the heat exchange tube assembly (206) is arranged below the distribution assembly (204), so that the liquid dripping from the plurality of distribution outlets (205) can drip onto the heat exchange tube assembly (206); and at least one liquid supply pipeline (104), wherein the liquid supply pipeline (104) is arranged corresponding to the heat exchange subassembly, so that the liquid can enter the distribution assembly (204) through the liquid supply pipeline (104).

2. The heat exchange device according to claim 1, characterized in that: The distribution assembly (204) includes a plurality of sub-cavities (402); The sub-cavity (402) is in fluid communication with at least one of the plurality of dispensing outlets (205), so that the liquid in each sub-cavity (402) can flow out through the dispensing outlet (205); At least one of the plurality of sub-cavities (402) is in communication with the distribution inlet (203); At least two sub-cavities (402) among the plurality of sub-cavities (402) are arranged along the length direction of the heat exchange device.

3. The heat exchange device according to claim 2, characterized in that: At least two sub-cavities (402) among the plurality of sub-cavities (402) are arranged along the width direction of the heat exchange device.

4. The heat exchange device according to claim 2, characterized in that: The distribution assembly (204) comprises at least one first partition plate (411), wherein the first partition plate (411) is arranged along the width direction of the heat exchange device, thereby forming the sub-chamber (402); The first partition plate (411) is provided with a first communication port (451), and the first communication port (451) is located at the bottom of the first partition plate (411), so that two adjacent sub-cavities (402) in the width direction of the heat exchange device are connected.

5. The heat exchange device according to claim 4, characterized in that: The distribution assembly (204) further comprises at least one second partition plate (412), wherein the second partition plate (412) is arranged along the length direction of the heat exchange device, thereby forming the sub-chamber (402); The second partition plate (412) is provided with a second communication port (452), and the second communication port (452) is located at the bottom of the second partition plate (412), so that two adjacent sub-cavities (402) in the length direction of the heat exchange device are connected.

6. The heat exchange device according to claim 4, characterized in that: Each of the plurality of sub-cavities (402) has a sub-cavity inlet (421), and the sub-cavity inlet (421) is fluidically connected to the distribution inlet (203); Wherein, the sub-cavity inlet (421) is formed extending along the width direction of the heat exchange device.

7. The heat exchange device according to claim 6, characterized in that: The distribution component (204) further comprises a plurality of tilting components, wherein the tilting components and the sub-cavities (402) are arranged correspondingly; The tilting assembly comprises a first tilting plate (431) and a second tilting plate (432), wherein the first tilting plate (431) and the second tilting plate (432) are tilted in opposite directions, thereby forming the sub-cavity inlet (421); The directions of the two adjacent sub-cavity entrances (421) are opposite.

8. The heat exchange device according to claim 6, characterized in that: The liquid supply pipeline (104) extends into the distribution component (204), so that the liquid in the liquid supply pipeline (104) enters the distribution component (204).

9. A falling film heat exchange device, characterized in that: The falling film heat exchange device comprises: A generator (601), comprising a heat exchange device as claimed in any one of claims 1 to 8; a condenser (602); and A connecting channel (603) is provided, wherein the connecting channel (603) connects the generator (601) and the condenser (602), so that the liquid is converted into gas by the heat exchange tube assembly (206) and then enters the condenser (602) through the connecting channel (603).

10. The falling film heat exchange device according to claim 9, characterized in that: The distribution assembly (204) includes a plurality of sub-cavities (402); The sub-cavity (402) is in fluid communication with at least one of the plurality of dispensing outlets (205), so that the liquid in each sub-cavity (402) can flow out through the dispensing outlet (205); At least one of the plurality of sub-cavities (402) is in communication with the distribution inlet (203); At least two of the plurality of sub-cavities (402) are arranged along the width direction of the heat exchange device, and the outlet of the liquid supply pipeline (104) is arranged in the sub-cavity (402) close to the condenser (602).

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