Fresh air hydrogen exhaust micro-channel heat exchange structure

Abstract

The utility model belongs to the technical field of heat exchange device, concretely relates to a kind of new air hydrogen discharge microchannel heat exchange structure, the inner circulation component includes inner fan and evaporator, the inner fan is located the top of the evaporator, the outer circulation component includes outer fan and condenser, the condenser is located the top of the outer fan, the evaporator and the condenser inside are filled with phase change material;The new air hydrogen discharge component includes air guide ring and new air hydrogen discharge fan, the middle partition is provided with opening, the air guide ring and the new air hydrogen discharge fan are sequentially installed in the opening along width direction, the air inlet of the new air hydrogen discharge fan is towards the middle partition.The utility model passes through optimizing heat exchanger structure, solves the problem that new air exhaust and hydrogen discharge cannot be carried out.

Description

Technical Field

[0001] This utility model belongs to the technical field of heat exchange devices, specifically relating to a microchannel heat exchange structure for fresh air hydrogen exhaust. 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 a simple structure and cannot handle fresh air intake, exhaust air, or hydrogen discharge. Utility Model Content

[0005] The purpose of this invention is to provide a microchannel heat exchange structure for fresh air and hydrogen exhaust, addressing the shortcomings of existing technologies. By optimizing the heat exchanger structure, the problem of being unable to perform fresh air exhaust and hydrogen exhaust is solved.

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

[0007] A microchannel heat exchange structure for fresh air hydrogen exhaust includes a cabinet. An internal circulation component, a central partition, an external circulation component, and a fresh air hydrogen exhaust component are sequentially arranged along the width of 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. Both the evaporator and the condenser are filled with phase change material. The fresh air hydrogen exhaust component includes an air guide ring and a fresh air hydrogen exhaust fan. The central partition has an opening, and the air guide ring and the fresh air hydrogen exhaust fan are sequentially installed at the opening along the width, with the air inlet of the fresh air hydrogen exhaust fan facing the central partition.

[0008] In some possible implementations, 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.

[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, a fresh air exhaust port and a hydrogen exhaust port are provided below the internal circulation air outlet, and the fresh air exhaust port and the hydrogen exhaust port are connected to the opening.

[0011] In some possible implementations, the cabinet is provided with an external circulation air inlet on the side near the external fan, a baffle is provided on the side of the cabinet near the fresh air exhaust fan, and an external circulation air outlet is provided on the side of the cabinet near the condenser.

[0012] In some possible implementations, the fresh air exhaust fan and the external fan are arranged at intervals along the length direction.

[0013] 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.

[0014] In some possible implementations, the partition plate is provided with a first partition plate, a first guide plate 102 and a second partition plate in sequence along the height direction. The first guide plate 102 is inclinedly disposed between the first partition plate and the second partition plate. The opening is disposed in the second partition plate. A second guide plate that cooperates with the opening is disposed on one side of the second partition plate.

[0015] In some possible implementations, the air guide ring is provided with a channel, and the fresh air exhaust fan is installed on one side of the channel.

[0016] In some possible implementations, the number of internal fans is always two, and the two internal fans are arranged at intervals along the length direction X.

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

[0018] This invention optimizes the heat exchange structure by installing a guide ring at the opening of the partition plate and reversing the air intake of the fresh air and hydrogen exhaust fan, with the fan's inlet facing the partition plate. This allows the high-temperature gas, fresh air, and hydrogen inside the equipment to be discharged through the condenser via the opening. Simultaneously, by adding an internal fan and the partition plate, high-temperature gas inside the equipment is drawn in through the internal fan. The hot air, isolated and guided by the partition plate, flows through the evaporator. Since the evaporator and condenser are connected by pipes and are filled with phase change material (PCM), and the PCM is in liquid phase change material at room temperature, the hot air transfers heat to the liquid PCM as it passes through. The PCM absorbs the heat, its temperature rises, and it begins to vaporize, carrying away most of the heat from the air. The hot air exiting the evaporator decreases in temperature, and the low-temperature gas flows into the equipment to cool it down. This process is repeated cyclically to achieve heat exchange and dissipation. In addition, due to the pressure difference created by the vaporization of the liquid phase change in the evaporator, the high-temperature vaporized gas flows upward and flows into the condenser through the gas pipe connected to the condenser. Under the action of the external fan, the low-temperature air from the external environment is drawn in and isolated and guided by the partition plate, allowing the low-temperature air to flow through the condenser. This carries away the heat of the high-temperature phase change gas flowing into the condenser, thereby cooling the high-temperature phase change material gas and condensing it into a liquid. Under the action of gravity, the condensed phase change material flows into the evaporator through the liquid pipe connected to the evaporator. This process is repeated cyclically to achieve heat exchange and dissipation. 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 structure on the back of this utility model.

[0022] Figure 3 This is a schematic diagram of the installation of the fresh air hydrogen exhaust component of this utility model.

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

[0024] Figure 5 This is a schematic diagram of the hydrogen exhaust system for the present invention.

[0025] The reference numerals in the attached figures are explained as follows:

[0026] 1-Internal fan; 11-Internal circulation air inlet;

[0027] 2-Evaporator; 21-Internal circulation air outlet;

[0028] 3-External fan; 31-External air circulation inlet;

[0029] 4-Condenser; 41-External circulation air outlet;

[0030] 5-Air guide ring;

[0031] 6-Fresh air exhaust fan; 61-Baffle; 62-Fresh air exhaust outlet and hydrogen exhaust outlet;

[0032] 7-Trachea;

[0033] 8-liquid tube;

[0034] 9-Opening;

[0035] 10-Middle baffle; 101-First baffle; 102-First guide vane; 103-Second baffle; 104-Second guide vane;

[0036] X - Length direction;

[0037] Y-width direction;

[0038] Z-Height Direction. Detailed Implementation

[0039] 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.

[0040] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be interpreted as indicating or implying relative importance.

[0041] 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.

[0042] 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.

[0043] Example 1

[0044] Because the existing heat exchangers have a simple structure, they cannot perform fresh air exhaust and hydrogen discharge.

[0045] like Figures 1-5 As shown, the microchannel heat exchange structure for fresh air hydrogen exhaust of this utility model includes a cabinet. Inside the cabinet, along the width direction Y, an internal circulation component, a middle partition 10, an external circulation component, and a fresh air hydrogen exhaust component are arranged sequentially. The cabinet is separated into two independent spaces by the middle partition 10. The internal circulation component includes an internal fan 1 and an evaporator 2, with the internal fan 1 located above the evaporator 2. The external circulation component includes an external fan 3 and a condenser 4, with the condenser 4 located above the external fan 3. The evaporator 2 and the condenser 4 are filled with phase change material. The fresh air hydrogen exhaust component includes an air guide ring 5 and a fresh air hydrogen exhaust fan 6. The middle partition 10 has an opening 9, and the air guide ring 5 and the fresh air hydrogen exhaust fan 6 are installed sequentially at the opening 9 along the width direction Y. The air inlet of the fresh air hydrogen exhaust fan 6 faces the middle partition 10.

[0046] This invention optimizes the heat exchange structure by installing a guide ring 5 at the opening 9 of the partition 10 and reversing the air intake of the fresh air and hydrogen exhaust fan 6 so that its inlet faces the partition 10. This allows the high-temperature gas, fresh air, and hydrogen inside the equipment to be discharged through the condenser 4 via the opening 9, solving the problem of insufficient fresh air and hydrogen exhaust. Simultaneously, by adding an internal fan 1 and the partition 10, high-temperature gas inside the equipment is drawn in through the internal fan 1. The hot air, isolated and guided by the partition 10, flows through the evaporator 2. Since the evaporator 2 and condenser 4 are connected by pipes and are filled with phase change material (PCM), which is present in liquid PCM at room temperature, the hot air transfers heat to the liquid PCM as it passes through. The PCM 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 2, allowing the low-temperature gas to flow back into the equipment for further cooling. This process is repeated cyclically. This achieves the effects of heat exchange and heat dissipation. In addition, due to the pressure difference after the liquid phase change vaporization in the evaporator 2, the high-temperature vaporized gas flows upward and flows into the condenser 4 through the gas pipe 7 connected to the condenser 4. Under the action of the external fan 3, the low-temperature air from the external environment is drawn in and isolated and guided by the partition plate 10, so that the low-temperature air flows through the condenser 4, carrying away the heat of the high-temperature phase change gas flowing into the condenser 4, thereby cooling down the high-temperature phase change material gas and condensing it into a liquid. Under the action of gravity, the condensed phase change material flows into the evaporator 2 through the liquid pipe 8 connected to the evaporator 2. This process is repeated to achieve the effects of heat exchange and heat dissipation.

[0047] 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.

[0048] In the microchannel heat exchange structure for fresh air hydrogen exhaust according to this utility model, the top of the condenser 4 and the top of the evaporator 2 are connected by a gas pipe 7, and the bottom of the condenser 4 and the bottom of the evaporator 2 are connected by a liquid pipe 8. Specifically, the high-temperature vaporized gas flows upward and flows into the condenser 4 through the gas pipe 7 connected to the condenser 4. Under the action of the external fan 3, the low-temperature air from the external environment is drawn in and isolated and guided by the partition plate 10, so that the low-temperature air flows through the condenser 4, carrying away the heat of the high-temperature phase change gas flowing into the condenser 4, thereby cooling the high-temperature phase change material gas and condensing it into a liquid. Under the action of gravity, the condensed phase change material flows into the evaporator 2 through the liquid pipe 8 connected to the evaporator 2, and this process is repeated cyclically.

[0049] In the microchannel heat exchange structure for fresh air hydrogen exhaust according to this utility model, an internal circulation air inlet 11 is provided on the side of the cabinet near the internal fan 1, and an internal circulation air outlet 21 is provided on the side of the cabinet near the evaporator 2. Specifically, the internal circulation air inlet 11 is located above the internal circulation air outlet 21, and there are two internal circulation air inlets 11, 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 21 is larger than the area of ​​the internal circulation air inlet 11, which helps to allow low-temperature gas to flow into the equipment and cool the equipment.

[0050] In the microchannel heat exchange structure for fresh air and hydrogen exhaust according to this utility model, a fresh air exhaust port and a hydrogen exhaust port 62 are provided below the internal circulation air outlet 21. The fresh air exhaust port and the hydrogen exhaust port 62 are connected to the opening 9, so that the hot air or air containing hydrogen enters the cabinet from the fresh air exhaust port and the hydrogen exhaust port 62, and is discharged through the opening 9, the air guide ring, the fresh air and hydrogen exhaust fan 6, and the condenser 4.

[0051] In the microchannel heat exchange structure for fresh air and hydrogen exhaust according to this utility model, an external circulation air inlet 31 is provided on the side of the cabinet near the external fan 3, a baffle 61 is provided on the side of the cabinet near the fresh air and hydrogen exhaust fan 6, and an external circulation air outlet 41 is provided on the side of the cabinet near the condenser 4. Specifically, the baffle 61 can prevent high-temperature gas, fresh air, and hydrogen from being directly discharged from the side of the cabinet near the fresh air and hydrogen exhaust fan 6, so that the high-temperature gas, fresh air, and hydrogen inside the equipment are discharged through the opening 9 and the condenser 4. The external circulation air inlet 31 is located below the external circulation air outlet 41. There are two external circulation air inlets 31, which helps to increase the circulation air volume and improve the heat exchange performance of the heat exchanger. The area of ​​the external circulation air outlet 41 is larger than the area of ​​the external circulation air inlet 31, which helps the high-temperature gas to be discharged through the condenser 4.

[0052] In the microchannel heat exchange structure for fresh air hydrogen exhaust according to this utility model, the fresh air hydrogen exhaust fan 6 and the external fan 3 are arranged at intervals along the length direction X, which avoids mutual interference between the fresh air hydrogen exhaust fan 6 and the external fan 3 and helps to improve the stability of the heat exchange structure operation.

[0053] In the microchannel heat exchange structure for fresh air hydrogen exhaust according to the present invention, the partition plate 10 extends from the top of the cabinet to the bottom of the cabinet along the height direction Z. The partition plate 10 is provided with through holes through which the gas supply pipe 7 and liquid pipe 8 pass, which facilitates the arrangement of the gas supply pipe 7 and liquid pipe 8 and helps to improve the space utilization inside the cabinet.

[0054] In the microchannel heat exchange structure for fresh air hydrogen exhaust according to this utility model, the air guide ring 5 is provided with a channel, the fresh air hydrogen exhaust fan 6 is installed on one side of the channel, and the opening 9 connects to the other side of the channel, so that the hot air or air containing hydrogen enters the cabinet from the fresh air exhaust port and the hydrogen exhaust port 62, and is discharged through the opening 9, the air guide ring 5, the fresh air hydrogen exhaust fan 6, and the condenser 4.

[0055] The working principle of this utility model is as follows:

[0056] This invention optimizes the heat exchange structure by installing a guide ring 5 at the opening 9 of the partition 10 and reversing the air intake of the fresh air and hydrogen exhaust fan 6 so that its inlet faces the partition 10. This allows the high-temperature gas, fresh air, and hydrogen inside the equipment to be discharged through the condenser 4 via the opening 9, solving the problem of insufficient fresh air and hydrogen exhaust. Simultaneously, by adding an internal fan 1 and the partition 10, high-temperature gas inside the equipment is drawn in through the internal fan 1. The hot air, isolated and guided by the partition 10, flows through the evaporator 2. Since the evaporator 2 and condenser 4 are connected by pipes and are filled with phase change material (PCM), which is present in liquid PCM at room temperature, the hot air transfers heat to the liquid PCM as it passes through. The PCM 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 2, allowing the low-temperature gas to flow back into the equipment for further cooling. This process is repeated cyclically. This achieves the effects of heat exchange and heat dissipation. In addition, due to the pressure difference after the liquid phase change vaporization in the evaporator 2, the high-temperature vaporized gas flows upward and flows into the condenser 4 through the gas pipe 7 connected to the condenser 4. Under the action of the external fan 3, the low-temperature air from the external environment is drawn in and isolated and guided by the partition plate 10, so that the low-temperature air flows through the condenser 4, carrying away the heat of the high-temperature phase change gas flowing into the condenser 4, thereby cooling down the high-temperature phase change material gas and condensing it into a liquid. Under the action of gravity, the condensed phase change material flows into the evaporator 2 through the liquid pipe 8 connected to the evaporator 2. This process is repeated to achieve the effects of heat exchange and heat dissipation.

[0057] Example 2

[0058] Unlike Embodiment 1, in this embodiment, the partition 10 is provided with a first partition 101, a first guide plate 102, and a second partition 103 sequentially along the height direction Z. The first guide plate 102 is inclinedly disposed between the first partition 101 and the second partition 103. An opening 9 is disposed on the second partition 103, and a second guide plate 104 that cooperates with the opening 9 is disposed on one side of the second partition 103. Specifically, the condenser 4 and the internal fan 1 are respectively installed on both sides of the first partition 101, the external fan 3 and the evaporator 2 are installed on both sides of the second partition 103, and the evaporator 12 is not in contact with the second partition 103 and is installed on the side wall near the width direction Y of the cabinet. The first guide plate 102 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, allowing the flowing external cold air to 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. The second guide plate 104 and the bottom of the cabinet form an air passage between the fresh air exhaust port and the hydrogen exhaust port 62 and the opening 9, preventing hot air or air containing hydrogen from directly entering the evaporator 2 from the fresh air exhaust port and the hydrogen exhaust port 62.

[0059] The other structures are the same as in Embodiment 1, and will not be described again here.

[0060] Example 3

[0061] Unlike Embodiment 1, this embodiment has two internal fans 1, which 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.

[0062] The other structures are the same as in Embodiment 1, and will not be described again here.

[0063] 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 microchannel heat exchange structure for fresh air hydrogen exhaust, characterized in that, The cabinet includes an internal circulation component, a middle partition (10), an external circulation component and a fresh air hydrogen exhaust component arranged sequentially along the width direction. The cabinet is separated into two independent spaces by the middle partition (10). The internal circulation component includes an internal fan (1) and an evaporator (2), with the internal fan (1) located above the evaporator (2). The external circulation component includes an external fan (3) and a condenser (4), with the condenser (4) located above the external fan (3). The evaporator (2) and the condenser (4) are filled with phase change material. The fresh air hydrogen exhaust assembly includes a guide ring (5) and a fresh air hydrogen exhaust fan (6). The partition plate (10) is provided with an opening (9). The guide ring (5) and the fresh air hydrogen exhaust fan (6) are installed sequentially in the opening (9) along the width direction. The air inlet of the fresh air hydrogen exhaust fan (6) faces the partition plate (10).

2. The microchannel heat exchange structure for fresh air hydrogen exhaust as described in claim 1, characterized in that: The top of the condenser (4) and the top of the evaporator (2) are connected by a gas pipe (7), and the bottom of the condenser (4) and the bottom of the evaporator (2) are connected by a liquid pipe (8).

3. The microchannel heat exchange structure for fresh air hydrogen exhaust as described in claim 2, characterized in that: An internal circulation air inlet (11) is provided on the side of the cabinet closest to the internal fan (1), and an internal circulation air outlet (21) is provided on the side of the cabinet closest to the evaporator (2).

4. The microchannel heat exchange structure for fresh air hydrogen exhaust as described in claim 3, characterized in that: Below the internal circulation air outlet (21) are a fresh air exhaust outlet and a hydrogen exhaust outlet, which are connected to the opening (9).

5. The microchannel heat exchange structure for fresh air hydrogen exhaust as described in claim 4, characterized in that: An external circulation air inlet (31) is provided on the side of the cabinet closest to the external fan (3), a baffle (61) is provided on the side of the cabinet closest to the fresh air exhaust fan (6), and an external circulation air outlet (41) is provided on the side of the cabinet closest to the condenser (4).

6. The microchannel heat exchange structure for fresh air hydrogen exhaust as described in claim 1, characterized in that: The fresh air exhaust fan (6) and the external fan (3) are arranged at intervals along the length direction.

7. The microchannel heat exchange structure for fresh air hydrogen exhaust as described in claim 2, characterized in that: The partition (10) extends from the top of the cabinet to the bottom of the cabinet along the height direction, and the partition (10) is provided with through holes for the gas pipe (7) and the liquid pipe (8) to pass through.

8. The microchannel heat exchange structure for fresh air hydrogen exhaust as described in claim 1, characterized in that: The partition (10) is provided with a first partition, a first guide plate and a second partition in sequence along the height direction. The first guide plate 102 is inclinedly disposed between the first partition and the second partition. The opening (9) is disposed in the second partition. A second guide plate that cooperates with the opening (9) is disposed on one side of the second partition.

9. The microchannel heat exchange structure for fresh air hydrogen exhaust as described in claim 5, characterized in that: The air guide ring (5) is provided with a channel, and the fresh air hydrogen exhaust fan (6) is installed on one side of the channel.

10. The microchannel heat exchange structure for fresh air hydrogen exhaust as described in claim 1, characterized in that: The number of internal fans (1) is two, and the two internal fans (1) are arranged at intervals along the length direction X.

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