A heat exchange auxiliary system and energy storage device

Abstract

The heat exchange auxiliary system and energy storage device disclosed in the utility model relate to the technical field of energy storage systems, including a vortex tube and a fan. The vortex tube has an air inlet, a cold air outlet and a hot air outlet that are interconnected. The air inlet is used to connect to an air source for air intake. After the air enters the vortex tube from the air inlet, cold air and hot air are separated. The cold air is ejected from the cold air outlet, and the hot air is ejected from the hot air outlet. The cold air outlet is arranged toward the heat exchanger so that the vortex tube can spray cold air toward the heat exchanger. The fan is used to drive the air around the heat exchanger to flow, thereby improving the heat dissipation efficiency of the heat exchanger. When the natural heat exchange efficiency of the heat exchanger is high, only one of the fan and the vortex tube can be started to dissipate heat from the heat exchanger. When the natural heat exchange efficiency of the heat exchanger is low, the fan and the vortex tube can be started at the same time to dissipate heat from the heat exchanger, thereby reducing the speed of the fan, reducing noise, improving user experience and improving system efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage systems, and more specifically, to a heat exchange auxiliary system and an energy storage device. Background Art

[0002] In the current temperature control technology of energy storage systems, liquid cooling units, as the main temperature control means, do play a vital role in ensuring the safe and efficient operation of battery packs. However, this temperature control technology presents different challenges and limitations under different ambient temperatures.

[0003] When the ambient temperature is at a low level, the combination of a microchannel heat exchanger and a fan can effectively discharge the heat generated by the battery into the air to cool the coolant. However, as the ambient temperature rises, this natural heat dissipation method gradually becomes inadequate. At this time, although increasing the fan speed can increase the heat dissipation, it will also significantly increase the noise, which not only affects the overall performance of the system, but may also have a negative impact on the user experience.

[0004] In order to cope with the heat dissipation challenge in high temperature environment, some systems choose to turn on compression cooling to enhance the cooling effect. However, although this approach can solve the heat dissipation problem to a certain extent, it also brings new problems: compression cooling not only increases the power consumption of the system and reduces the overall efficiency, but also may increase operating costs due to additional energy consumption.

[0005] Therefore, how to improve the heat exchange efficiency of the heat exchanger has become a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0006] In view of this, an object of the present invention is to provide a heat exchange auxiliary system to improve the heat exchange efficiency of a heat exchanger.

[0007] Another object of the present utility model is to provide an energy storage device including the above-mentioned heat exchange auxiliary system.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A heat exchange auxiliary system, used for performing heat exchange on a heat exchanger, comprising:

[0010] A vortex tube having an air inlet, a cold air outlet and a hot air outlet which are interconnected, wherein the air inlet is used to be connected to an air source for air intake, and the cold air outlet faces the heat exchanger and is used to spray cold air to the heat exchanger;

[0011] The fan is used to drive the air around the heat exchanger to flow.

[0012] Optionally, in the above-mentioned heat exchange auxiliary system, the vortex tube includes an air intake pipe section, a cold air pipe section and a hot air pipe section, and the air intake pipe section, the cold air pipe section and the hot air pipe section are connected to each other, and the air intake pipe section has the air inlet, the cold air pipe section has the cold air outlet, and the hot air pipe section has the hot air outlet.

[0013] Optionally, in the above-mentioned heat exchange auxiliary system, a gas-liquid separation device is provided on the air inlet pipe section, and the liquid collecting port of the gas-liquid separation device is connected to a drainage pipe for draining liquid.

[0014] Optionally, in the above-mentioned heat exchange auxiliary system, an air pressurizing device is provided on the air intake pipe section; and / or,

[0015] The air intake pipe section is provided with an adjusting component for adjusting the air intake amount.

[0016] Optionally, in the above-mentioned heat exchange auxiliary system, the fan is used to drive air to flow from the air inlet side to the air outlet side of the heat exchanger;

[0017] The cold air outlet faces the air inlet side of the heat exchanger.

[0018] Optionally, in the above-mentioned heat exchange auxiliary system, the fan is arranged on the air inlet side or the air outlet side of the heat exchanger.

[0019] Optionally, in the above-mentioned heat exchange auxiliary system, the hot air outlet is arranged in a direction away from the heat exchanger.

[0020] An energy storage device comprises the above-mentioned heat exchange auxiliary system, the heat exchanger and a cabinet, wherein the energy storage component is used to be stored in the cabinet, the heat exchanger is used to exchange heat with the energy storage component through a heat exchange circuit, and the fan and the vortex tube are both arranged on the cabinet.

[0021] Optionally, in the above energy storage device, the heat exchanger, the fan and the vortex tube are all arranged on the cabinet door of the cabinet; or,

[0022] The heat exchanger and the fan are arranged on the top of the cabinet, and the vortex tube is arranged on the cabinet door of the cabinet.

[0023] Optionally, in the above energy storage device, there are one or more vortex tubes.

[0024] Optionally, in the above energy storage device, the air inlets of the vortex tubes are connected one by one with air inlet branches, and each of the air inlet branches is provided with a control valve and connected to the same air source.

[0025] The heat exchange auxiliary system provided by the utility model is used for heat exchange of the heat exchanger, including a vortex tube and a fan. The vortex tube has an air inlet, a cold air outlet and a hot air outlet that are interconnected. The air inlet is used to connect to an air source for air intake. After the air enters the vortex tube from the air inlet, cold air and hot air are separated. The cold air is ejected from the cold air outlet, and the hot air is ejected from the hot air outlet. The cold air outlet is arranged toward the heat exchanger so that the vortex tube can spray cold air toward the heat exchanger. The fan is used to drive the air around the heat exchanger to flow, thereby improving the heat dissipation efficiency of the heat exchanger. When the natural heat exchange efficiency of the heat exchanger is high, only the fan can be started to dissipate heat to the heat exchanger. When the natural heat exchange efficiency of the heat exchanger is low, the fan and the vortex tube can be started at the same time to dissipate heat to the heat exchanger.

[0026] Compared with the prior art, the heat exchange auxiliary system provided by the utility model exchanges heat on the heat exchanger through a combination of a vortex tube and a fan. The cold air sprayed by the vortex tube to the heat exchanger greatly reduces the temperature of the environment around the heat exchanger and improves the heat dissipation efficiency. It can reduce the speed of the fan in a high temperature environment or reduce the working time of the compression refrigeration in a high temperature environment, thereby reducing noise or power consumption, improving user experience and improving system efficiency.

[0027] The energy storage device provided by the utility model includes the above-mentioned heat exchange auxiliary system, a heat exchanger and a cabinet, the fan and the vortex tube are both arranged on the cabinet, and the energy storage components such as batteries are used to be stored in the cabinet. The heat exchanger exchanges heat with the energy storage components in the cabinet through a heat exchange loop, and the fan and the vortex tube exchange heat with the heat exchanger, thereby improving the heat exchange efficiency of the energy storage components. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a schematic diagram of the structure of the vortex tube disclosed in the embodiment of the utility model;

[0030] Figure 2 This is a schematic diagram of the structure of the first energy storage device disclosed in the embodiment of the utility model;

[0031] Figure 3 A schematic diagram of the structure of a second energy storage device disclosed in an embodiment of the utility model;

[0032] Figure 4 This is a schematic structural diagram of a third energy storage device disclosed in an embodiment of the utility model.

[0033] Among them, 100 is a vortex tube, 101 is an air inlet, 102 is a cold air outlet, 103 is a hot air outlet, 110 is an air pressurizing device, 120 is a gas-liquid separation device, 121 is a liquid collecting port, 122 is a drain pipe, and 130 is a regulating component;

[0034] 200 for fans;

[0035] 300 is a heat exchanger;

[0036] 400 is a cabinet body, 401 is a cabinet top, and 402 is a cabinet door. DETAILED DESCRIPTION

[0037] The core of the utility model is to disclose a heat exchange auxiliary system to improve the heat exchange efficiency of the heat exchanger.

[0038] Another object of the present utility model is to provide an energy storage device including the above-mentioned heat exchange auxiliary system.

[0039] The following is an explanation of the embodiments with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the contents of the utility model described in the claims. In addition, the entire contents of the structures represented by the following embodiments are not limited to those necessary as solutions of the utility model described in the claims. It should be noted that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings. In the absence of conflict, the embodiments in the utility model and the features in the embodiments can be combined with each other.

[0040] It should be noted that the temperatures of the cold air and hot air separated by the vortex tube 100 in the present invention are relative temperatures, and the temperature of the cold air is lower than the temperature of the hot air.

[0041] Combination Figure 1-Figure 4 The heat exchange auxiliary system disclosed in the embodiment of the utility model is used to exchange heat for the heat exchanger 300, and includes a vortex tube 100 and a fan 200. The vortex tube 100 has an air inlet 101, a cold air outlet 102 and a hot air outlet 103 that are interconnected. The air inlet 101 is used to connect to an air source for air intake. After the air enters the vortex tube 100 from the air inlet 101, cold air and hot air are separated. The cold air is ejected from the cold air outlet 102, and the hot air is ejected from the hot air outlet 103. The cold air outlet 102 is arranged toward the heat exchanger 300, so that the vortex tube 100 can spray cold air toward the heat exchanger 300. The fan 200 is used to drive the air around the heat exchanger 300 to flow, thereby improving the heat dissipation efficiency of the heat exchanger 300.

[0042] When the natural heat exchange efficiency of the heat exchanger 300 is high (for example, when the ambient temperature of the heat exchanger 300 is low), only the fan 200 can be started to dissipate heat from the heat exchanger 300. When the natural heat exchange efficiency of the heat exchanger 300 is low (for example, when the ambient temperature of the heat exchanger 300 is high), the fan 200 and the vortex tube 100 can be started at the same time to dissipate heat from the heat exchanger 300.

[0043] Compared with the prior art, the heat exchange auxiliary system disclosed in the embodiment of the utility model exchanges heat for the heat exchanger 300 through the combination of a vortex tube 100 and a fan 200. The cold air sprayed by the vortex tube 100 to the heat exchanger 300 greatly reduces the temperature of the environment around the heat exchanger 300, improves the heat dissipation efficiency, and can reduce the rotation speed of the fan 200 in a high temperature environment or reduce the working time of the compression refrigeration in a high temperature environment, thereby reducing noise or reducing power consumption, improving user experience and improving system efficiency.

[0044] The specific principle of the vortex tube 100 separating air into hot air and cold air is prior art and will not be described in detail here.

[0045] Combination Figure 1 , it is defined that the vortex tube 100 has an air intake pipe section, a cold air pipe section and a hot air pipe section, the first end of the air intake pipe section has the above-mentioned air inlet 101, the second end is connected to the cold air pipe section and the hot air pipe section, the cold air pipe section and the hot air pipe section are connected, and the two have the above-mentioned cold air outlet 102 and hot air outlet 103 respectively.

[0046] Furthermore, a gas-liquid separation device 120 is also provided on the vortex tube 100. Specifically, the gas-liquid separation device 120 is arranged on the air inlet pipe section to separate the moisture in the air before the air enters the cold air pipe section and the hot air pipe section, so as to prevent the moisture in the air from being sprayed to the heat exchanger 300 and affecting the service life of the heat exchanger 300, and reduce the impact of the moisture in the air on the vortex tube 100.

[0047] The gas-liquid separation device 120 has a liquid collecting port 121 for discharging liquid. Correspondingly, a drain pipe 122 for draining liquid is connected to the liquid collecting port 121. The drain pipe 122 is usually a hose to facilitate adjustment of a specific drainage position.

[0048] The air enters the gas-liquid separation device 120 from the air inlet 101. After the air passes through the gas-liquid separation device 120, the moisture flows out from the drain pipe 122, and the gas continues to flow along the vortex tube 100. By flowing in a spiral form inside the vortex tube 100, the hot air is discharged from the hot air outlet 103, and the cold air is discharged from the cold air outlet 102.

[0049] Combination Figure 1An air pressurizing device 110 is provided on the air inlet pipe section, and the air pressurizing device 110 is used to supply high-pressure air to the vortex tube 100 so that the vortex tube 100 can work normally, that is, the air pressurizing device 110 is used to provide the working pressure required by the vortex tube 100. The air pressurizing device 110 and the air source can have the same structure or different structures.

[0050] Specifically, in one embodiment, the air pressurizing device 110 includes an air compressor, a cooling system, a filtering system, an air storage tank and a control system. The cooling system cools the air compressor to ensure its normal operating temperature. The air storage tank is connected and arranged between the air compressor and the air intake pipe section to buffer a certain amount of air. While ensuring a continuous supply of air, it is convenient to control the air pressure. The filtering system can be arranged between the air storage tank and the air intake pipe section of the vortex tube 100 or between the air storage tank and the air compressor, preferably at the air inlet of the air compressor to filter impurities in the air. The common arrangement of the filtering system and the above-mentioned gas-liquid separation device 120 can ensure the normal operation of the vortex tube 100. The control system is used to control various control parameters of the air compressor, the cooling system and the air storage tank.

[0051] In addition, an adjusting component 130 for adjusting the intake amount may be provided on the intake pipe section, so as to control the flow rate of the cold air. The adjusting component 130 may specifically be an intake valve, an adjusting knob, and other components.

[0052] A temperature control component may also be provided on the vortex tube 100 to control the outlet temperature of the cold air.

[0053] The heat exchanger 300 can specifically be a fin heat exchanger, a copper tube, etc. Since no other heat dissipation components are provided, the air flow direction of the environment in which the heat exchanger 300 is located is usually controlled by the fan 200, and flows from the air inlet side to the air outlet side of the heat exchanger 300. Therefore, the cold air outlet 102 of the vortex tube 100 should be toward the air inlet direction of the heat exchanger 300 (for example, the air inlet, the air inlet surface or the air inlet side) to reduce the air inlet temperature of the heat exchanger 300 and ensure that the cold air can flow along the heat exchange direction of the heat exchanger 300, that is, the direction of the cold air outlet 102 is set to be consistent with the air flow direction driven by the fan 200.

[0054] In one embodiment, the heat exchanger 300 is a microchannel heat exchanger, and the cold air outlet 102 of the vortex tube 100 faces the air inlet side of the microchannel heat exchanger, that is, the vortex tube 100 is used to spray cold air to the air inlet side of the microchannel heat exchanger, and the fan 200 can be arranged on the air outlet side or the air inlet side of the heat exchanger 300. Figure 2 The fan 200 is preferably disposed on the air outlet side of the heat exchanger 300 to avoid the vortex tube 100 for easy layout.

[0055] In order to reduce the impact of the hot air ejected from the vortex tube 100 on the cold air, the hot air outlet 103 is arranged in a direction away from the heat exchanger 300 to transport the hot air away from the heat exchanger 300, thereby reducing the impact of the hot air on the heat exchange efficiency of the heat exchanger 300, and the hot air can be directly discharged into the air.

[0056] Combination Figure 2-Figure 4 The energy storage device disclosed in the embodiment of the utility model includes the above-mentioned heat exchange auxiliary system, the heat exchanger 300 and the cabinet 400, the fan 200 and the vortex tube 100 are both arranged on the cabinet 400, and the energy storage components such as batteries are used to store in the cabinet 400. The heat exchanger 300 exchanges heat with the energy storage components in the cabinet 400 through a heat exchange loop, and the fan 200 and the vortex tube 100 exchange heat with the heat exchanger 300.

[0057] Since the above-mentioned heat exchange auxiliary system is provided, the above-mentioned beneficial effects are also achieved. Other structures refer to the prior art and will not be described in detail here.

[0058] In combination with actual conditions, the heat exchanger 300, the fan 200 and the vortex tube 100 have various layout forms on the cabinet 400, and can be arranged inside the cabinet 400 or outside the cabinet 400. Figure 2 The fan 200 is located at the top of the cabinet door 402, a microchannel heat exchanger is installed below the fan 200, a vortex tube 100 is arranged below the microchannel heat exchanger, and the vortex tube 100, the heat exchanger 300 and the fan 200 are all arranged on the same cabinet door 402 of the cabinet body 400. The air enters from the air inlet 101 of the vortex tube 100, and the cold air and the hot air are separated. The cold air outlet 102 is located at the upper end of the vortex tube 100, facing the air inlet surface of the microchannel heat exchanger, and the hot air outlet 103 is located at the bottom of the cabinet door 402 and is directly discharged into the air. The drain pipe 122 is connected to the bottom of the cabinet door, and the moisture in the air is discharged to the outside of the cabinet body 400 through the gas-liquid separation device 120.

[0059] In another embodiment, the heat exchanger is disposed on the cabinet top 401, the vortex tube 100 is disposed on the cabinet door 402, the cold air outlet 102 of the vortex tube 100 is connected to the air inlet of the heat exchanger 300, and the hot air outlet 103 is connected to the bottom of the cabinet 400 to discharge the hot air outside the cabinet 400. The drain pipe 122 is connected to the bottom of the cabinet 400 to discharge the moisture in the air outside the cabinet 400.

[0060] Specifically, the vortex tube 100 can be fixed on the cabinet 400 by various methods such as screw connection and hanging connection.

[0061] As needed, multiple vortex tubes 100 can be arranged on the cabinet 400 at the same time to increase the air intake of the heat exchanger 300. In order to reduce costs, each vortex tube 100 can be supplied with air by the same air source or air pressurizing device 110. Furthermore, the air inlet 101 of each vortex tube 100 is connected to an air intake branch pipe one by one, and the air intake branch pipe is connected to the air source, and each is provided with a control valve to control the air supply of different vortex tubes 100 separately to reduce losses.

[0062] Furthermore, when there are multiple vortex tubes 100, the cold air outlets 102 of some vortex tubes 100 can be directly set in the cabinet 400 to reduce the temperature in the cabinet 400 and directly cool the energy storage components. The hot air outlets 103 are set outside the cabinet 400 to directly discharge hot air into the air.

[0063] Correspondingly, a dust removal device needs to be provided at the air inlet 101 to prevent the air in the cabinet 400 from containing too much impurities and affecting the normal operation of the energy storage component.

[0064] In addition, combined Figure 2-Figure 4 Since a certain distance needs to be maintained between the cold air outlet 102 and the heat exchanger 300 to avoid affecting the heat exchange between the heat exchanger 300 and the surrounding environment, in order to enhance the air outlet effect of the vortex tube 100 toward the heat exchanger 300 without affecting the heat exchange of the heat exchanger 300, a guide baffle (not shown in the figure) can be set on the cabinet 400, and a guide channel with both ends extending toward the cold air outlet 102 and the direction of the heat exchanger 300 is formed between the two guide baffles, thereby realizing the introduction of cold air into the heat exchanger 300.

[0065] The above description of the disclosed embodiments enables professionals and technicians in the field to implement or use the utility model. Various modifications to these embodiments will be obvious to professionals and technicians in the field, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. The specific technical means in some embodiments can be combined in part or in whole into another embodiment without being explicitly excluded by another embodiment. Therefore, the utility model will not be limited to the embodiments shown in this article, but will conform to the widest range consistent with the principles and novel features disclosed herein.

Claims

1. A heat exchange auxiliary system, used for performing heat exchange on a heat exchanger (300), characterized in that: include: A vortex tube (100) having an air inlet (101), a cold air outlet (102), and a hot air outlet (103) which are interconnected, wherein the air inlet (101) is used to connect to an air source for air intake, and the cold air outlet (102) faces the heat exchanger (300) and is used to spray cold air toward the heat exchanger (300); The fan (200) is used to drive the air around the heat exchanger (300) to flow.

2. The heat exchange auxiliary system according to claim 1, characterized in that: The vortex tube (100) comprises an air intake pipe section, a cold air pipe section and a hot air pipe section, wherein the air intake pipe section, the cold air pipe section and the hot air pipe section are connected to each other in pairs, and the air intake pipe section has the air intake port (101), the cold air pipe section has the cold air outlet (102), and the hot air pipe section has the hot air outlet (103).

3. The heat exchange auxiliary system according to claim 2, characterized in that: The air inlet pipe section is provided with a gas-liquid separation device (120), and a liquid collecting port (121) of the gas-liquid separation device (120) is connected to a drainage pipe (122) for draining liquid.

4. The heat exchange auxiliary system according to claim 2, characterized in that: The air intake pipe section is provided with an air pressurizing device (110); and / or, The air intake pipe section is provided with an adjusting component (130) for adjusting the air intake amount.

5. The heat exchange auxiliary system according to any one of claims 1 to 4, characterized in that: The fan (200) is used to drive air to flow from the air inlet side to the air outlet side of the heat exchanger (300); The cold air outlet (102) faces the air inlet side of the heat exchanger (300).

6. The heat exchange auxiliary system according to claim 5, characterized in that: The fan (200) is arranged on the air inlet side or the air outlet side of the heat exchanger (300).

7. The heat exchange auxiliary system according to any one of claims 1 to 4, characterized in that: The hot air outlet (103) is arranged in a direction away from the heat exchanger (300).

8. An energy storage device, characterized in that: The heat exchange auxiliary system comprises the heat exchange auxiliary system according to any one of claims 1 to 7, the heat exchanger (300) and a cabinet (400), wherein the energy storage component is used for storing in the cabinet (400), the heat exchanger (300) is used for exchanging heat with the energy storage component through a heat exchange circuit, and the fan (200) and the vortex tube (100) are both arranged on the cabinet (400).

9. The energy storage device according to claim 8, characterized in that: The heat exchanger (300), the fan (200), and the vortex tube (100) are all arranged on the cabinet door (402) of the cabinet body (400); or, The heat exchanger (300) and the fan (200) are arranged on the top of the cabinet (400), and the vortex tube (100) is arranged on the cabinet door (402) of the cabinet (400).

10. The energy storage device according to claim 8, characterized in that: There are one or more vortex tubes (100).

11. The energy storage device according to claim 10, characterized in that: The air inlets (101) of the vortex tubes (100) are connected to each other in a one-to-one correspondence with an air inlet branch pipe, and each of the air inlet branch pipes is provided with a control valve and is connected to the same air source.

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