Cooling and heating integrated heat exchange device and liquid cooling unit

Abstract

The utility model provides a heat exchange device integrating refrigeration and heating and a liquid cooling unit, the heat exchange device comprises a shell, a water inlet channel, a temperature changing channel and a water outlet channel are arranged in the shell, and cooling liquid flows in from the water inlet channel, flows to the temperature changing channel from the water inlet channel and then flows out from the water outlet channel; the heating unit is arranged in the water inlet channel; the temperature changing unit is arranged in the temperature changing channel; when the heating unit and / or the temperature changing unit is used for heating, the cooling liquid is heated; and when the heating unit does not heat and the temperature changing unit refrigerates, the cooling liquid is refrigerated. The cooling liquid is heated through the heating unit or the temperature changing unit, the cooling liquid is refrigerated through the temperature changing unit, and therefore the heat exchange device can achieve the heating function and the refrigerating function, and the heating unit and the temperature changing unit are integrated in the shell. And the effect that the occupied space of the heat exchange device is reduced by arranging the parts in a centralized mode is further achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, and particularly relates to a heat exchange device integrating refrigeration and heating and a liquid cooling unit. Background Art

[0002] With the rapid development of the energy storage industry, liquid cooling units are widely used in energy storage systems. The basic principle of a liquid cooling unit is to generate low-temperature refrigerant through the operation of a fluorine system, and then connect the water system through a heat exchanger and an electric heater to exchange heat with the circulating coolant, so as to achieve the purpose of cooling / heating the load.

[0003] However, the existing liquid cooling units have problems such as more parts, scattered installation of each component, unreasonable layout, large floor space, more heat loss during the circulation of the coolant, and difficulty in discharging heat in time, resulting in poor heat exchange effect. Summary of the Utility Model

[0004] The utility model solves the problem that the existing liquid cooling units have a large floor space.

[0005] To solve the above problems, the utility model provides a heat exchange device integrating refrigeration and heating, including:

[0006] A housing, an inlet channel, a temperature-changing channel and an outlet channel are arranged in the housing, the coolant flows in from the inlet channel, and flows from the inlet channel to the temperature-changing channel and then flows out from the outlet channel;

[0007] A heating unit, which is arranged in the inlet channel;

[0008] A temperature-changing unit, which is arranged in the temperature-changing channel;

[0009] Wherein, when the heating unit and / or the temperature-changing unit heats, the coolant is heated; when the heating unit does not heat and the temperature-changing unit cools, the coolant is cooled.

[0010] The coolant is heated by the heating unit or the temperature-changing unit, and the coolant is cooled by the temperature-changing unit, so that the heat exchange device can not only realize the heating function but also the cooling function. And by installing the heating unit and the temperature-changing unit in the inlet channel and the temperature-changing channel of the housing respectively, and integrating the heating unit and the temperature-changing unit in the housing, the effect of concentrating the arrangement of parts to reduce the floor space of the heat exchange device is achieved, and the effect of timely heat conduction and improved heat exchange capacity can also be achieved, thereby improving the stability of the heat exchange device, reducing the number of pipelines and joints, and reducing the leakage risk.

[0011] Optionally, the temperature-changing unit includes a first inlet and a first outlet connected to the temperature-changing channel. The first inlet is disposed at one end close to the water outlet channel, and the first outlet is disposed at one end close to the water inlet channel.

[0012] Wherein, when the refrigerant in the first inlet to the first outlet performs a heating cycle, the temperature-changing unit heats the coolant.

[0013] When the refrigerant in the first inlet to the first outlet performs a cooling cycle, the temperature-changing unit cools the coolant.

[0014] By controlling the refrigerant in the temperature-changing unit to perform a heating cycle or a cooling cycle to achieve the functions of refrigeration and heating of the temperature-changing unit, this method is simple and convenient, easy to operate, and does not require a separate refrigeration module and heating module. This makes the heat exchange device have a simple structure, reduces the number of components, and reduces the floor space of the heat exchange device. In addition, due to the functional multiplexing of the temperature-changing unit, the connection relationship of the entire heat exchange device is simple, which is convenient for the maintenance and repair of the heat exchange device.

[0015] Optionally, the temperature-changing channel includes a first connection port connected to the water inlet channel and a second connection port connected to the water outlet channel. The first connection port and the second connection port are oppositely disposed at both ends of the temperature-changing channel. The first inlet and the first outlet are disposed on the same side of the temperature-changing channel, and the first connection port is disposed close to the first inlet, and the second connection port is disposed away from the first outlet.

[0016] By arranging the first connection port, the second connection port, the first outlet and the first inlet in the above manner, the refrigerant from the first inlet to the first outlet can be in full contact with the coolant in the temperature-changing channel, realizing full heat exchange, achieving the effect of timely heat conduction and improving the heat exchange capacity.

[0017] Optionally, the temperature-changing unit further includes a plurality of flow channel pipes for guiding. The plurality of flow channel pipes are disposed in the temperature-changing channel, and the length of each flow channel pipe is greater than the distance between the first inlet and the first outlet.

[0018] By arranging a plurality of flow channel pipes, the coolant in the temperature-changing channel can be guided and pressure-relieved, and the residence time of the coolant in the temperature-changing channel can be increased, the heat exchange time of the coolant can be increased, and the heat exchange capacity can be improved.

[0019] Optionally, the heating unit includes a plurality of heating pipes and a heating part. The heating part is connected to the plurality of heating pipes. When the heating unit is arranged in the water inlet passage, the plurality of heating pipes are arranged in the water inlet passage, and the heating part is arranged on the outer wall of the water inlet passage. The heating part is used to heat the plurality of heating pipes to heat the coolant.

[0020] By arranging a plurality of heating pipes in the water inlet passage, they can be in full contact with the coolant, thereby improving the heat exchange efficiency.

[0021] Optionally, the plurality of heating pipes and the heating part are integrally formed and detachably installed on the water inlet passage.

[0022] By detachably installing the plurality of heating pipes and the heating part on the water inlet passage, it is convenient to replace and repair the plurality of heating pipes and the heating part.

[0023] Optionally, the water inlet passage and the water outlet passage are arranged along the width direction of the housing, the temperature-changing passage is arranged along the length direction of the housing, and the water inlet of the water inlet passage and the water outlet of the water outlet passage are located on the same side.

[0024] Through the above arrangement, the structure of the heat exchange device can be made more compact, reducing the occupied space.

[0025] Optionally, the heat exchange device further includes a water replenishing port and a drainage port. The water replenishing port is connected to the water inlet passage, and the drainage port is connected to the water outlet passage.

[0026] By integrating the drainage port and the water replenishing port into the heat exchange device, it is convenient for production, installation and maintenance.

[0027] Optionally, the heat exchange device is further provided with a first interface for connecting a temperature sensor and a second interface for connecting a water pressure sensor. Both the first interface and the second interface are connected to the water outlet passage.

[0028] An embodiment of the present application further provides a liquid cooling unit, which includes:

[0029] A heat exchange device, the heat exchange device according to any one of the above;

[0030] A water system, the water system is connected to the water inlet passage in the heat exchange device;

[0031] A temperature-changing system, the temperature-changing system is connected to the temperature-changing passage in the heat exchange device. Description of the Drawings

[0032] Figure 1 It is a schematic structural diagram of the heat exchange device for integrated refrigeration and heating provided by the embodiment of the present application;

[0033] Figure 2 This is a schematic structural diagram of the liquid cooling unit provided by the embodiment of the present application;

[0034] Figure 3 is Figure 2 a schematic principle diagram of the liquid cooling unit shown.

[0035] Explanation of reference numerals:

[0036] 100, heat exchange device; 10, housing; 20, heating unit; 30, temperature-changing unit; 40, water replenishing port; 50, drainage port; 60, first interface; 70, second interface;

[0037] 11, water inlet channel; 12, temperature-changing channel; 13, water outlet channel;

[0038] 21, heating pipeline; 22, heating part;

[0039] 31, first inlet; 32, first outlet; 33, flow channel pipe;

[0040] 121, first connection port; 122, second connection port;

[0041] 1, liquid cooling unit; 200, water system; 300, temperature-changing system; 400, water inlet; 500, water outlet; 210, circulation water pump. Detailed implementation manners

[0042] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the specific embodiments of the present utility model will be described in detail below.

[0043] Please refer to Figure 1 , Figure 1Schematic structural diagram of the heat exchange device integrating refrigeration and heating provided by the embodiments of the present application. The embodiments of the present application provide a heat exchange device 100 integrating refrigeration and heating. The heat exchange device 100 includes a housing 10, a heating unit 20, and a temperature-changing unit 30. An inlet water channel 11, a temperature-changing channel 12, and an outlet water channel 13 are arranged inside the housing 10. The coolant flows in from the inlet water channel 11, flows from the inlet water channel 11 to the temperature-changing channel 12, and then flows out from the outlet water channel 13. The heating unit 20 is arranged in the inlet water channel 11, and the temperature-changing unit 30 is arranged in the temperature-changing channel 12. Among them, when the heating unit 20 and / or the temperature-changing unit 30 heats, the coolant is heated; when the heating unit 20 does not heat and the temperature-changing unit 30 refrigerates, the coolant is refrigerated. In the embodiments of the present application, the coolant is heated by the heating unit 20 or the temperature-changing unit 30, and the coolant is refrigerated by the temperature-changing unit 30, so that the heat exchange device 100 can not only achieve the heating function but also the refrigeration function. And by respectively installing the heating unit 20 and the temperature-changing unit 30 in the inlet water channel 11 and the temperature-changing channel 12 of the housing 10, the heating unit 20 and the temperature-changing unit 30 are integrated in the housing 10, achieving the effect of concentrating the components to reduce the floor space of the heat exchange device 100, and can also achieve the effect of timely heat conduction and improving the heat exchange capacity, thereby improving the stability of the heat exchange device 100, reducing the number of pipelines and joints, and reducing the leakage risk.

[0044] The temperature-changing unit 30 includes a first inlet 31 and a first outlet 32 connected to the temperature-changing channel 12. The first inlet 31 is arranged at one end close to the outlet water channel 13, and the first outlet 32 is arranged at one end close to the inlet water channel 11. Among them, when the refrigerant in the first inlet 31 to the first outlet 32 performs a heating cycle, the temperature-changing unit 30 heats the coolant; when the refrigerant in the first inlet 31 to the first outlet 32 performs a refrigeration cycle, the temperature-changing unit 30 refrigerates the coolant. By controlling the refrigerant in the temperature-changing unit 30 to perform a heating cycle or a refrigeration cycle to achieve the refrigeration and heating functions of the temperature-changing unit 30, this method is simple and convenient to operate, and does not require a separate refrigeration module and heating module, making the structure of the heat exchange device 100 simple, reducing the number of components, reducing the floor space of the heat exchange device 100. In addition, due to the functional multiplexing of the temperature-changing unit 30, the connection relationship of the entire heat exchange device 100 is simple, which is convenient for the maintenance and repair of the heat exchange device 100.

[0045] It should be noted that the temperature-changing unit 30 needs to be set according to the actual situation when turning on the heating mode or the cooling mode. For example, when the coolant needs to be cooled, the heating unit 20 stops working and the temperature-changing unit 30 turns on the cooling mode. When the coolant needs to be heated, the heating unit 20 starts to work, and the temperature-changing unit 30 needs to determine whether to turn on the heating according to factors such as the current temperature, target temperature, and heating duration of the coolant. Exemplarily, if it is determined that the heating unit 20 can meet the heating demand based on the current temperature, target temperature, and heating duration, the temperature-changing unit 30 stops working. If it is determined that the heating unit 20 cannot meet the heating demand based on the current temperature, target temperature, and heating duration, the temperature-changing unit 30 turns on the heating mode. In this way, the temperature-changing unit 30 is controlled according to the actual needs, achieving the effect of precise performance matching, and can not only avoid energy consumption waste but also improve the heating efficiency.

[0046] Among them, the temperature-changing unit 30 is connected to an external system, and the external system includes a fluorine system and a heat pump, and the external system performs a refrigeration cycle and a heating cycle on the refrigerant according to the demand.

[0047] It can be understood that the first inlet 31 and the first outlet 32 can be arranged on the same side of the temperature-changing channel 12 or on both sides of the temperature-changing channel 12. The specific arrangement position can be set according to the actual situation and is not specifically limited here. In addition, this application takes the example of the first inlet 31 and the first outlet 32 being arranged on the same side of the temperature-changing channel 12 for description, and should not be construed as a limitation on the first inlet 31 and the first outlet 32.

[0048] The temperature-changing channel 12 includes a first connection port 121 connected to the water inlet channel 11 and a second connection port 122 connected to the water outlet channel 13. The first connection port 121 and the second connection port 122 are oppositely arranged at both ends of the temperature-changing channel 12. The first inlet 31 and the first outlet 32 are arranged on the same side of the temperature-changing channel 12, and the first connection port 121 is arranged close to the first inlet 31, and the second connection port 122 is arranged away from the first outlet 32. By arranging the first connection port 121, the second connection port 122, the first outlet 32, and the first inlet 31 in the above manner, the refrigerant from the first inlet 31 to the first outlet 32 can be in full contact with the coolant in the temperature-changing channel 12, realizing full heat exchange, achieving the effect of timely heat conduction and improving the heat exchange capacity.

[0049] The variable temperature unit 30 further includes a plurality of flow channel pipes 33 for guiding flow. The plurality of flow channel pipes 33 are arranged in the variable temperature channel 12, and the length of each flow channel pipe 33 is greater than the distance between the first inlet 31 and the first outlet 32. By arranging the plurality of flow channel pipes 33, the coolant in the variable temperature channel 12 can be guided and pressure-relieved, and the residence time of the coolant in the variable temperature channel 12 can be increased, and the heat exchange time of the coolant can be increased. In addition, by setting the length of each flow channel pipe 33 to be greater than the distance between the first inlet 31 and the first outlet 32, the contact probability between the refrigerant from the first inlet 31 to the first outlet 32 and the coolant in the variable temperature channel 12 can be increased, thereby improving the heat exchange efficiency.

[0050] It should be noted that the flow channel design in the variable temperature unit 30 is not limited to the above-mentioned flow channel pipes 33, and any structure that can achieve heat exchange between two flowing media is acceptable.

[0051] The heating unit 20 includes a plurality of heating pipes 21 and a heating part 22. The heating part 22 is connected to the plurality of heating pipes 21. When the heating unit 20 is arranged in the water inlet channel 11, the plurality of heating pipes 21 are arranged in the water inlet channel 11, and the heating part 22 is arranged on the outer wall of the water inlet channel 11. The heating part 22 is used to heat the plurality of heating pipes 21 to heat the coolant. By arranging the plurality of heating pipes in the water inlet channel 11, they can be in full contact with the coolant, thereby improving the heat exchange efficiency.

[0052] In some embodiments, the plurality of heating pipes 21 and the heating part 22 are integrally formed and detachably installed on the water inlet channel 11. By being detachably installed on the water inlet channel 11, it is convenient to replace and repair the plurality of heating pipes 21 and the heating part 22.

[0053] It should be noted that the heating unit 20 can also be an integrated installation of PTC or other types of electric heating through flow channel adjustment, and specific limitations are not made here.

[0054] The water inlet channel 11 and the water outlet channel 13 are arranged along the width direction of the housing 10, the variable temperature channel 12 is arranged along the length direction of the housing 10, and the water inlet 400 of the water inlet channel 11 and the water outlet 500 of the water outlet channel 13 are located on the same side. Such an arrangement can make the structure more compact and reduce the occupied space.

[0055] The heat exchange device 100 further includes a water replenishing port 40 and a drain port 50. The water replenishing port 40 is connected to the water inlet channel 11, and the drain port 50 is connected to the water outlet channel 13. By integrating the drain port 50 and the water replenishing port 40 into the heat exchange device 100, it is convenient for production and installation and maintenance.

[0056] The heat exchange device 100 is also provided with a first interface 60 for connecting a temperature sensor and a second interface 70 for connecting a water pressure sensor. Both the first interface 60 and the second interface 70 are connected to the water outlet channel 13. By connecting to the temperature sensor, the temperature of the coolant can be measured in real time, and thus it can be determined whether the coolant needs to be circulated for heat exchange based on the temperature. That is to say, when the current temperature of the coolant does not meet the conditions, the coolant flowing out of the water outlet channel 13 is controlled to re-enter the water inlet channel 11 for circulating heat exchange until the temperature measured by the temperature sensor meets the conditions and then the circulation stops.

[0057] Please continue to refer to Figure 2 and Figure 3 , Figure 2 which is a schematic structural diagram of the liquid cooling unit provided by the embodiment of the present application. Figure 3 is Figure 2 a schematic principle diagram of the liquid cooling unit shown. The embodiment of the present application also provides a liquid cooling unit 1, which includes the heat exchange device 100 in any of the above embodiments. The specific content of the heat exchange device 100 can be seen above and will not be elaborated here. The liquid cooling unit 1 further includes a water system 200 and a temperature change system 300. Among them, the water system 200 is connected to the water inlet channel 11 in the heat exchange device 100, and the temperature change system 300 is connected to the temperature change channel 12 in the heat exchange device 100.

[0058] Among them, according to Figure 3 the schematic principle diagram shown, the liquid cooling unit 1 realizes the effect of cooling or heating the coolant by putting both the coolant in the water system 200 and the refrigerant in the temperature change system 300 into the heat exchange device 100 and carrying out heat exchange between the coolant and the refrigerant in the heat exchange device 100.

[0059] In some embodiments, the water system 200 further includes a circulation water pump 210, and the circulation water pump 210 is connected to the water inlet channel 11.

[0060] In some embodiments, the liquid cooling unit 1 further includes a water inlet 400 and a water outlet 500. The water inlet 400 is connected to the circulation water pump 210, and the water outlet 500 is connected to the water outlet channel 13.

[0061] In some embodiments, the liquid cooling unit 1 further includes a temperature sensor connected to the first interface 60, a water pressure sensor connected to the second interface 70, and auxiliary components such as water replenishment and exhaust.

[0062] Although the present utility model is disclosed as above, the present utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the scope defined by the claims.

Claims

1. A heat exchange device (100) integrating refrigeration and heating, characterized in that, Comprising: A housing (10) with an inlet channel (11), a temperature-changing channel (12), and an outlet channel (13) disposed therein. Coolant flows into the inlet channel (11), flows from the inlet channel (11) to the temperature-changing channel (12), and then flows out through the outlet channel (13). A heating unit (20) disposed in the inlet channel (11). A temperature-changing unit (30) disposed in the temperature-changing channel (12). Wherein, when the heating unit (20) and / or the temperature-changing unit (30) heats, the coolant is heated; when the heating unit (20) does not heat and the temperature-changing unit (30) cools, the coolant is cooled.

2. The heat exchange device (100) according to claim 1, characterized in that, The temperature-changing unit (30) includes a first inlet (31) and a first outlet (32) connected to the temperature-changing channel (12). The first inlet (31) is disposed at one end close to the outlet channel (13), and the first outlet (32) is disposed at one end close to the inlet channel (11). Wherein, when the refrigerant in the first inlet (31) to the first outlet (32) performs a heating cycle, the temperature-changing unit (30) heats the coolant. When the refrigerant in the first inlet (31) to the first outlet (32) performs a cooling cycle, the temperature-changing unit (30) cools the coolant.

3. The heat exchange device (100) according to claim 2, characterized in that, The temperature-changing channel (12) includes a first connection port (121) connected to the inlet channel (11) and a second connection port (122) connected to the outlet channel (13). The first connection port (121) and the second connection port (122) are oppositely disposed at both ends of the temperature-changing channel (12). The first inlet (31) and the first outlet (32) are disposed on the same side of the temperature-changing channel (12), and the first connection port (121) is disposed close to the first inlet (31), and the second connection port (122) is disposed away from the first outlet (32).

4. The heat exchange device (100) according to claim 2, characterized in that, The temperature-changing unit (30) further includes a plurality of flow channel pipes (33) for guiding flow. The plurality of flow channel pipes (33) are disposed in the temperature-changing channel (12), and the length of each flow channel pipe (33) is greater than the distance between the first inlet (31) and the first outlet (32).

5. The heat exchange device (100) according to claim 1, characterized in that, The heating unit (20) includes a plurality of heating pipes (21) and a heating part (22). The heating part (22) is connected to the plurality of heating pipes (21). When the heating unit (20) is disposed in the inlet channel (11), the plurality of heating pipes (21) are disposed in the inlet channel (11), and the heating part (22) is disposed on the outer wall of the inlet channel (11). The heating part (22) is used to heat the plurality of heating pipes (21) to heat the coolant.

6. The heat exchange device (100) according to claim 5, characterized in that, The plurality of heating pipes (21) and the heating part (22) are integrally formed and detachably mounted on the inlet channel (11).

7. The heat exchange device (100) according to any one of claims 1 to 5, characterized in that, The inlet channel (11) and the outlet channel (13) are arranged along the width direction of the housing (10), the temperature-changing channel (12) is arranged along the length direction of the housing (10), and the water inlet (400) of the inlet channel (11) and the water outlet (500) of the outlet channel (13) are located on the same side.

8. The heat exchange device (100) according to any one of claims 1 to 5, characterized in that, The heat exchange device (100) further includes a water replenishing port (40) and a drainage port (50), the water replenishing port (40) is connected to the inlet channel (11), and the drainage port (50) is connected to the outlet channel (13).

9. The heat exchange device (100) according to any one of claims 1 to 5, characterized in that, The heat exchange device (100) is further provided with a first interface (60) for connecting a temperature sensor and a second interface (70) for connecting a water pressure sensor, and both the first interface (60) and the second interface (70) are connected to the outlet channel (13).

10. A liquid cooling unit (1), characterized in that, The liquid cooling unit (1) includes: a heat exchange device (100), the heat exchange device (100) according to any one of claims 1 to 9; a water system (200), the water system (200) is connected to the inlet channel (11) in the heat exchange device (100); a temperature-changing system (300), the temperature-changing system (300) is connected to the temperature-changing channel (12) in the heat exchange device (100).

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