A gravity micro-channel heat exchange structure

Abstract

The utility model belongs to the technical field of heat dissipation equipment, concretely relates to a gravity micro -channel heat exchange structure, including the cabinet, the cabinet is sequentially provided with inside circulation subassembly, mid -partition and outside circulation subassembly along the width direction in, the cabinet is separated and forms two independent spaces through mid -partition, the inside circulation subassembly includes the inner fan and evaporator, the inner fan is located the top of evaporator, the outside circulation subassembly includes the outer fan and condenser, the condenser is located the top of outer fan, the top of condenser and the top of evaporator are connected through the air pipe between, the bottom of condenser and the bottom of evaporator are connected through the liquid pipe between, the evaporator and condenser inside are filled with phase change material. The utility model passes through the optimization heat exchanger structure, solves the problem that the heat exchange performance of heat exchanger is poor.

Description

Technical Field

[0001] This utility model belongs to the technical field of heat dissipation equipment, specifically relating to a gravity microchannel heat exchange structure. Background Technology

[0002] A heat exchanger is a device that transfers some of the heat from a hot fluid to a cold fluid; it is also called a heat exchanger. Heat exchangers play an important role in chemical, petroleum, power, food, and many other industrial production processes. Microchannel heat exchangers, as a highly efficient and compact new type of heat exchanger, have become a current research hotspot and have already been applied in refrigeration equipment.

[0003] In the process of realizing this utility model, the inventors discovered that the prior art has at least the following problems:

[0004] Existing heat exchangers have complex structures and poor heat exchange performance. Utility Model Content

[0005] The purpose of this invention is to provide a gravity microchannel heat exchange structure to address the shortcomings of existing technologies, thereby solving the problem of poor heat exchange performance of heat exchangers by optimizing the heat exchanger structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A gravity microchannel heat exchange structure includes a cabinet. An internal circulation component, a central partition, and an external circulation component are sequentially arranged along the width direction within the cabinet. The cabinet is separated into two independent spaces by the central partition. The internal circulation component includes an internal fan and an evaporator, with the internal fan located above the evaporator. The external circulation component includes an external fan and a condenser, with the condenser located above the external fan. The top of the condenser and the top of the evaporator are connected by a gas pipe, and the bottom of the condenser and the bottom of the evaporator are connected by a liquid pipe. Both the evaporator and the condenser are filled with a phase change material.

[0008] In some possible implementations, the condenser is located above the evaporator on one side in the width direction, and the condenser and the evaporator are separated by the partition.

[0009] In some possible implementations, the cabinet has an internal circulation air inlet on the side closest to the internal fan, and an internal circulation air outlet on the side closest to the evaporator.

[0010] In some possible implementations, the cabinet has an external circulation air inlet on the side closest to the external fan, and an external circulation air outlet on the side closest to the condenser.

[0011] In some possible implementations, the number of both the internal fan and the external fan is two, with the two internal fans arranged at intervals along the length direction and / or the two external fans arranged at intervals along the length direction.

[0012] In some possible implementations, the partition extends vertically from the top to the bottom of the cabinet, and the partition is provided with through holes for the gas pipes and liquid pipes to pass through.

[0013] In some possible implementations, the partition plate is provided with a first partition plate, a guide plate and a second partition plate in sequence along the height direction, and the guide plate is inclined between the first partition plate and the second partition plate.

[0014] In some possible implementations, both the internal fan and the external fan are mounted on the two sides of the partition plate via mounting brackets.

[0015] In some possible implementations, both the trachea and the liquid tube extend downwards along the height direction.

[0016] In some possible implementations, the height of the air tube is greater than the height of the liquid tube.

[0017] One of the above technical solutions has the following beneficial effects:

[0018] This invention optimizes the heat exchange structure by adding an internal fan and a partition. The internal fan draws in high-temperature gas, which is then guided by the partition to flow through the evaporator. Since the evaporator and condenser are connected by pipes and contain phase change material (PCT), which is present in liquid form at room temperature, the hot air transfers heat to the PCT as it passes through. The PCT absorbs the heat, its temperature rises, and it begins to vaporize, carrying away most of the heat from the air. This lowers the temperature of the hot air exiting the evaporator, allowing the cooled gas to flow back into the equipment for further cooling. This process is repeated cyclically to achieve efficient heat exchange. The process achieves both heat exchange and heat dissipation. Simultaneously, after the liquid undergoes phase change and vaporization within the evaporator, the high-temperature vaporized gas rises due to the pressure difference. Through a gas pipe connected to the condenser, the gas flows into the condenser. Under the action of the external fan, low-temperature air from the external environment is drawn in and isolated and guided by a partition, allowing the low-temperature air to flow through the condenser. This carries away the heat from the high-temperature phase change gas flowing into the condenser, thus cooling the high-temperature phase change material gas and condensing it into a liquid. Under gravity, the condensed phase change material flows into the evaporator through a liquid pipe connected to it. This process is repeated cyclically, achieving both heat exchange and heat dissipation, thus solving the problem of poor heat exchange performance in heat exchangers. Attached Figure Description

[0019] The features, advantages and technical effects of exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.

[0020] Figure 1 This is a front structural diagram of the present invention.

[0021] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0022] Figure 3 This is a schematic diagram of the circulating heat exchange of this utility model.

[0023] Figure 4 This is a schematic diagram of the structure on the back of this utility model.

[0024] The reference numerals in the attached figures are explained as follows:

[0025] 1-Internal circulation component; 11-Internal fan; 12-Evaporator;

[0026] 2-Middle baffle; 21-First baffle; 22-Baffle plate; 23-Second baffle;

[0027] 3-External circulation component; 31-External fan; 32-Condenser;

[0028] 4-Trachea;

[0029] 5-liquid tube;

[0030] 6- Internal circulation air inlet;

[0031] 7- Internal circulation air outlet;

[0032] 8-External circulation air inlet;

[0033] 9-External circulation air outlet;

[0034] 10-Mounting rack;

[0035] X - Length direction;

[0036] Y-width direction;

[0037] Z-Height Direction. Detailed Implementation

[0038] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0039] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be interpreted as indicating or implying relative importance.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] The present invention will be further described in detail below with reference to the accompanying drawings, but this is not intended to limit the present invention.

[0042] Example 1

[0043] Existing heat exchangers have complex structures and poor heat exchange performance.

[0044] like Figures 1-4As shown, the gravity microchannel heat exchange structure of this utility model includes a cabinet. Inside the cabinet, along the width direction Y, an inner circulation component 1, a middle partition 2, and an outer circulation component 3 are arranged sequentially. The cabinet is separated into two independent spaces by the middle partition 2. The inner circulation component 1 includes an inner fan 11 and an evaporator 12. The inner fan 11 is located above the evaporator 12. The outer circulation component 3 includes an outer fan 31 and a condenser 32. The condenser 32 is located above the outer fan 31. The top of the condenser 32 and the top of the evaporator 12 are connected by a gas pipe 4. The bottom of the condenser 32 and the bottom of the evaporator 12 are connected by a liquid pipe 5. The evaporator 12 and the condenser 32 are filled with phase change material. This invention optimizes the heat exchange structure by adding an internal fan 11 and a partition 2. High-temperature gas inside the equipment is drawn in by the internal fan 11, and the hot air, isolated and guided by the partition 2, flows through the evaporator 12. Since the evaporator 12 and condenser 32 are connected by pipes and are filled with phase change material (PCT), which is present in liquid form at room temperature, the hot air transfers heat to the PCT as it passes through. The PCT absorbs the heat, its temperature rises, and it begins to vaporize, carrying away most of the heat from the hot air. This lowers the temperature of the hot air exiting the evaporator 12, allowing the cooled gas to flow back into the equipment for further cooling. This process is repeated cyclically to achieve efficient heat exchange. The process achieves heat exchange and heat dissipation. Simultaneously, after the liquid phase change vaporizes inside the evaporator 12, due to the pressure difference, the high-temperature vaporized gas flows upward and flows into the condenser 32 through the gas pipe 4 connected to the condenser 32. Under the action of the external fan 31, the low-temperature air from the external environment is drawn in and isolated and guided by the partition plate 2, allowing the low-temperature air to flow through the condenser 32, carrying away the heat of the high-temperature phase change gas flowing into the condenser 32. This cools down the high-temperature phase change material gas and condenses it into a liquid. Under the action of gravity, the condensed phase change material flows into the evaporator 12 through the liquid pipe 5 connected to the evaporator 12. This process is repeated cyclically to achieve the effect of heat exchange and heat dissipation, solving the problem of poor heat exchange performance of the heat exchanger.

[0045] It should be noted that the phase change material is R134a (1,1,1,2-tetrafluoroethane), R1234ze (trans-1,3,3,3-tetrafluoro-1-propene), etc., which are commonly used in this field.

[0046] In the gravity microchannel heat exchange structure according to this utility model, the condenser 32 is located above the evaporator 12 on one side of the width direction Y, and the condenser 32 and the evaporator 12 are separated by a partition 2. Specifically, the partition 2 divides the cabinet into two independent spaces. The external fan 31 and the condenser 32 are installed in the longitudinal area on the left side of the width direction Y, and the internal fan 11 and the evaporator 12 are installed in the longitudinal area on the right side of the width direction Y. The internal circulation component 1 and the external circulation component 3 work independently and do not interfere with each other. The condenser 32 is positioned slightly higher than the evaporator 12. Utilizing the principle of gravity, the condensed phase change material flows into the evaporator 12 through the liquid pipe 5 connected to the evaporator 12.

[0047] In the gravity microchannel heat exchange structure according to this utility model, an internal circulation air inlet 6 is provided on the side of the cabinet near the internal fan 11, and an internal circulation air outlet 7 is provided on the side of the cabinet near the evaporator 12. Specifically, the internal circulation air inlet 6 is located above the internal circulation air outlet 7, and there are two internal circulation air inlets 6, which helps to increase the circulating air volume and improve the heat exchange performance of the heat exchanger. The area of ​​the internal circulation air outlet 7 is larger than the area of ​​the internal circulation air inlet 6, which helps to allow low-temperature gas to flow into the equipment and cool the equipment.

[0048] In the gravity microchannel heat exchange structure according to this utility model, an external circulation air inlet 8 is provided on the side of the cabinet near the external fan 31, and an external circulation air outlet 9 is provided on the side of the cabinet near the condenser 32. Specifically, the external circulation air inlet 8 is located below the external circulation air outlet 9, and there are two external circulation air inlets 8, which helps to increase the circulating air volume and improve the heat exchange performance of the heat exchanger. The area of ​​the external circulation air outlet 9 is larger than the area of ​​the external circulation air inlet 8, which helps to discharge high-temperature gas through the condenser 32 and cool the condenser 32.

[0049] In the gravity microchannel heat exchange structure according to this utility model, there are two internal fans 11 and two external fans 31. The two internal fans 11 are arranged at intervals along the length direction X, and / or the two external fans 31 are arranged at intervals along the length direction X, which helps to increase the circulating air volume and improve the heat exchange performance of the heat exchanger.

[0050] In the gravity microchannel heat exchange structure according to this utility model, the partition plate 2 extends from the top of the cabinet to the bottom of the cabinet along the height direction Z, separating the cabinet to form two independent spaces. The partition plate 2 is provided with through holes through which the gas supply pipe 4 and liquid pipe 5 pass, which facilitates the arrangement of the gas pipe 4 and liquid pipe 5 and helps to improve the space utilization rate inside the cabinet.

[0051] In the gravity microchannel heat exchange structure according to this utility model, the middle partition 2 is sequentially provided with a first partition 21, a guide plate 22, and a second partition 23 along the height direction Z. The guide plate 22 is inclinedly disposed between the first partition 21 and the second partition 23. Specifically, the condenser 32 and the internal fan 11 are respectively installed on both sides of the first partition 21, and the external fan 31 and the evaporator 12 are installed on both sides of the second partition 23. The evaporator 12 is not in contact with the second partition 23 and is installed on the side wall near the width direction Y of the cabinet. The guide plate 22 adopts an inclined design to guide the gas flow, which helps to improve the heat conduction effect. In addition, it can increase the turbulence of the cold air flow inside and outside the cabinet, so that the flowing external cold air can fully converge and merge. The external cold air can change its flow direction during the flow process, which can prolong the residence time of the external cold air in the cabinet and facilitate improve the heat exchange effect.

[0052] In the gravity microchannel heat exchange structure according to this utility model, the height of the gas pipe 4 is greater than the height of the liquid pipe 5. Specifically, the top of the condenser 32 and the top of the evaporator 12 are connected by the gas pipe 4, which facilitates the upward flow of the high-temperature vaporized phase change material gas. Through the gas pipe 4 connected to the condenser 32, the gaseous phase change material flows into the condenser 32. After condensation and cooling, the phase change material flows into the bottom of the condenser 32. Since the bottom of the condenser 32 and the bottom of the evaporator 12 are connected by the liquid pipe 5, the liquefied phase change material flows back to the bottom of the evaporator 12 through the liquid pipe 5. This process is repeated cyclically to achieve the effects of heat exchange and heat dissipation, thus solving the problem of poor heat exchange performance of the heat exchanger.

[0053] The working principle of this utility model is as follows:

[0054] This invention optimizes the heat exchange structure by adding an internal fan 11 and a partition 2. High-temperature gas inside the equipment is drawn in by the internal fan 11, and the hot air, isolated and guided by the partition 2, flows through the evaporator 12. Since the evaporator 12 and condenser 32 are connected by pipes and are filled with phase change material (PCT), which is present in liquid form at room temperature, the hot air transfers heat to the PCT as it passes through. The PCT absorbs the heat, its temperature rises, and it begins to vaporize, carrying away most of the heat from the hot air. This lowers the temperature of the hot air exiting the evaporator 12, allowing the cooled gas to flow back into the equipment for further cooling. This process is repeated cyclically to achieve efficient heat exchange. The process achieves heat exchange and heat dissipation. Simultaneously, after the liquid phase change vaporizes inside the evaporator 12, due to the pressure difference, the high-temperature vaporized gas flows upward and flows into the condenser 32 through the gas pipe 4 connected to the condenser 32. Under the action of the external fan 31, the low-temperature air from the external environment is drawn in and isolated and guided by the partition plate 2, allowing the low-temperature air to flow through the condenser 32, carrying away the heat of the high-temperature phase change gas flowing into the condenser 32. This cools down the high-temperature phase change material gas and condenses it into a liquid. Under the action of gravity, the condensed phase change material flows into the evaporator 12 through the liquid pipe 5 connected to the evaporator 12. This process is repeated cyclically to achieve the effect of heat exchange and heat dissipation, solving the problem of poor heat exchange performance of the heat exchanger.

[0055] Example 2

[0056] Unlike Embodiment 1, in this embodiment, both the inner fan 11 and the outer fan 31 are mounted on both sides of the middle partition 2 via mounting brackets 10. By adding mounting brackets 10, the stability of the connection between the inner fan 11 and the outer fan 31 and the middle partition 2 is improved, and displacement or shaking of the inner fan 11 and the outer fan 31 is prevented.

[0057] The other structures are the same as in Embodiment 1, and will not be described again here.

[0058] Example 3

[0059] Unlike Embodiment 1, in this embodiment, both the gas pipe 4 and the liquid pipe 5 extend downward along the height direction Z, which facilitates the connection between the evaporator 12 and the condenser 32. Specifically, both the gas pipe 4 and the liquid pipe 5 have a roughly Z-shaped structure, and the gas pipe 4 and the liquid pipe 5 do not interfere with each other.

[0060] The other structures are the same as in Embodiment 1, and will not be described again here.

[0061] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above, and any obvious improvements, substitutions, or modifications made by those skilled in the art based on this utility model are within the protection scope of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A gravity microchannel heat exchange structure, characterized in that, The cabinet includes an inner circulation component (1), a middle partition (2) and an outer circulation component (3) arranged sequentially along the width direction. The cabinet is separated into two independent spaces by the middle partition (2). The internal circulation component (1) includes an internal fan (11) and an evaporator (12), with the internal fan (11) located above the evaporator (12). The external circulation component (3) includes an external fan (31) and a condenser (32), with the condenser (32) located above the external fan (31). The top of the condenser (32) and the top of the evaporator (12) are connected by a gas pipe (4), and the bottom of the condenser (32) and the bottom of the evaporator (12) are connected by a liquid pipe (5). The evaporator (12) and the condenser (32) are filled with phase change material.

2. The gravity microchannel heat exchange structure as described in claim 1, characterized in that: The condenser (32) is located above the evaporator (12) on one side in the width direction, and the condenser (32) and the evaporator (12) are separated by the partition plate (2).

3. The gravity microchannel heat exchange structure as described in claim 1, characterized in that: An internal circulation air inlet (6) is provided on the side of the cabinet closest to the internal fan (11), and an internal circulation air outlet (7) is provided on the side of the cabinet closest to the evaporator (12).

4. The gravity microchannel heat exchange structure as described in claim 1, characterized in that: An external circulation air inlet (8) is provided on the side of the cabinet closest to the external fan (31), and an external circulation air outlet (9) is provided on the side of the cabinet closest to the condenser (32).

5. The gravity microchannel heat exchange structure as described in claim 1, characterized in that: The number of the inner fan (11) and the outer fan (31) are both two, with the two inner fans (11) arranged at intervals along the length direction, and / or the two outer fans (31) arranged at intervals along the length direction.

6. The gravity microchannel heat exchange structure as described in claim 1, characterized in that: The partition (2) extends from the top of the cabinet to the bottom of the cabinet along the height direction, and the partition (2) is provided with through holes for the gas pipe (4) and the liquid pipe (5) to pass through.

7. The gravity microchannel heat exchange structure as described in claim 1, characterized in that: The partition (2) is provided with a first partition (21), a guide plate (22) and a second partition (23) in sequence along the height direction. The guide plate (22) is inclined between the first partition (21) and the second partition (23).

8. The gravity microchannel heat exchange structure as described in claim 1, characterized in that: Both the internal fan (11) and the external fan (31) are mounted on the two sides of the partition plate (2) via mounting brackets (10).

9. The gravity microchannel heat exchange structure as described in claim 1, characterized in that: Both the air tube (4) and the liquid tube (5) extend downwards along the height direction.

10. The gravity microchannel heat exchange structure as described in claim 1, characterized in that: The height of the air tube (4) is greater than the height of the liquid tube (5).

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