Coarse vacuum super-evaporation cooling system

Abstract

The utility model belongs to the technical field of heat dissipation, and particularly discloses a coarse vacuum super-evaporation cooling system which is characterized in that a vacuum liquid storage tank of the coarse vacuum super-evaporation cooling system is hollow to form a cavity, cooling liquid is stored in the cavity and is in a negative pressure environment, and a first connecting pipeline is communicated with an air-cooled heat exchanger, the vacuum liquid storage tank and a circulating pump to form a liquid cooling loop; the cooling liquid circulates in the liquid cooling loop, the heat dissipation part of the working equipment is in heat exchange contact with the liquid cooling loop, and power can be provided for circulation of the cooling liquid in the liquid cooling loop through the circulating pump, so that heat generated by the working equipment can be taken away by the cooling liquid, and the working equipment is continuously cooled. And the cooling liquid is in a negative pressure environment, so that the cooling liquid can be boiled when exchanging heat with the heat dissipation part of the working equipment, low-temperature super-vaporization heat exchange is realized, and as the latent heat of vaporization of the cooling liquid is much greater than the specific heat of the cooling liquid, the cooling effect is more obvious, and the temperature of the working equipment can be effectively controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation, in particular to a rough vacuum super-vaporization cooling system. Background Art

[0002] For some devices that need heat dissipation, including power batteries, energy storage systems, airborne or vehicle-mounted electronic devices, etc., most rely on liquid cooling, heat pipes, air cooling and other technologies or a combination of them to cool the devices.

[0003] Since power batteries, energy storage systems, airborne or vehicle-mounted electronic devices, etc. generate a large amount of heat in a short time during operation, resulting in too high temperatures of these components. When the temperature exceeds a certain threshold, problems such as thermal runaway of power batteries and energy storage systems, and high-temperature damage of airborne or vehicle-mounted electronic devices may occur. Traditional liquid cooling, heat pipe, air cooling and other technologies, or a combination of them for heat dissipation cannot meet the heat dissipation requirements of the above devices and cannot effectively dissipate heat in a short time. Content of the Utility Model

[0004] The purpose of the utility model is to provide a rough vacuum super-vaporization cooling system, which uses the latent heat of vaporization when the coolant boils to cool the devices in the working section, can quickly take away the heat generated by the devices, and has a remarkable cooling effect.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a rough vacuum super-vaporization cooling system for cooling the working devices in the working section. The rough vacuum super-vaporization cooling system includes:

[0007] An air-cooled heat exchanger;

[0008] A vacuum liquid storage tank with a hollow interior forming a cavity for storing the coolant, and the cavity is in a negative pressure state;

[0009] A first connecting pipeline, which is connected to the air-cooled heat exchanger and the vacuum liquid storage tank to form a liquid cooling loop, the coolant flows in the liquid cooling loop, and the heat dissipation part of the working device is in heat exchange contact with the liquid cooling loop;

[0010] A circulation pump is arranged on the first connecting pipeline, and the circulation pump is used to provide power for the circulation of the coolant in the liquid cooling loop.

[0011] Optionally, the rough vacuum super-vaporization cooling system includes a data acquisition and display system. A vacuum gauge is provided on the vacuum liquid storage tank, and the vacuum gauge is used to detect the pressure information of the cavity, and the vacuum gauge is communicatively connected to the data acquisition and display system.

[0012] Optionally, a flange interface is provided on the top of the vacuum liquid storage tank or on the side wall near the top of the vacuum liquid storage tank, and the vacuum gauge is connected to the flange interface.

[0013] Optionally, a flow meter is provided on the first connection pipeline, and the flow meter is used to detect the real-time flow rate q of the coolant in the first connection pipeline. The flow meter is communicatively connected to the data acquisition and display system.

[0014] Optionally, the flow meter is an ultrasonic flow meter.

[0015] Optionally, a first temperature sensor is provided in the first connection pipeline upstream of the working device. The first temperature sensor is used to detect the real-time temperature T1 of the coolant before flowing through the working device. The first temperature sensor is communicatively connected to the data acquisition and display system;

[0016] A second temperature sensor is provided in the first connection pipeline downstream of the working device. The second temperature sensor is used to detect the real-time temperature T2 of the coolant after flowing through the working device. The second temperature sensor is communicatively connected to the data acquisition and display system;

[0017] A third temperature sensor is provided at the heat dissipation part of the working device. The third temperature sensor is used to detect the real-time temperature T3 of the heat dissipation part of the working device. The third temperature sensor is communicatively connected to the data acquisition and display system.

[0018] Optionally, a first valve is provided on the first connection pipeline, and the first valve is used to adjust the flow rate of the coolant in the first connection pipeline.

[0019] Optionally, the rough vacuum super-vaporization cooling system includes a vacuum pump and a second connection pipeline. The two ends of the second connection pipeline are respectively communicated with the vacuum pump and the vacuum liquid storage tank, and the vacuum pump is used to make the cavity of the vacuum liquid storage tank in a negative pressure state.

[0020] Optionally, a second valve is provided on the second connection pipeline, and the second valve is used to adjust the flow rate of the gas in the second connection pipeline.

[0021] Optionally, the air-cooled heat exchanger includes a housing and a plurality of fins. A flow space for the coolant to flow is formed in the housing, and the plurality of fins are arranged at intervals on the outer wall surface of the housing.

[0022] The beneficial effects of the present utility model are as follows:

[0023] The present utility model provides a rough vacuum super-vaporization cooling system, which includes an air-cooled heat exchanger, a vacuum liquid storage tank, a first connecting pipeline, and a circulation pump. The interior of the vacuum liquid storage tank is hollow to form a cavity. The lower space of the cavity is used to store the coolant. The coolant is in a negative pressure environment. The first connecting pipeline is connected to the air-cooled heat exchanger, the vacuum liquid storage tank, and the circulation pump to form a liquid cooling loop. The coolant circulates in the liquid cooling loop. The heat dissipation part of the working equipment is in heat exchange contact with the liquid cooling loop. The circulation pump can provide power for the circulation of the coolant in the liquid cooling loop, so that the coolant can take away the heat generated by the working equipment and continuously cool the working equipment. And the coolant is in a negative pressure environment, so that when the coolant exchanges heat with the heat dissipation part of the working equipment, it can boil, realizing low-temperature super-vaporization heat exchange. Since the latent heat of vaporization of the coolant is much larger than the specific heat of the coolant, the cooling effect is more significant, and the temperature of the working equipment can be effectively controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments of the present utility model. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the content of the embodiments of the present utility model and these drawings.

[0025] Figure 1 is a schematic structural diagram of the rough vacuum super-vaporization cooling system provided in the embodiment of the present utility model;

[0026] Figure 2 is a schematic structural diagram of the air-cooled heat exchanger provided in the embodiment of the present utility model.

[0027] In the figure:

[0028] 10, working equipment; 100, air-cooled heat exchanger; 110, housing; 111, circulation space; 120, fins; 200, vacuum liquid storage tank; 210, vacuum gauge; 300, first connecting pipeline; 310, flow meter; 320, first valve; 400, circulation pump; 500, data acquisition and display system; 610, first temperature sensor; 620, second temperature sensor; 630, third temperature sensor; 700, vacuum pump; 800, second connecting pipeline; 810, second valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the convenience of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0030] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact of the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above the", and "on the top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "below the", and "under the" second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0032] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "left", and "right" are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0033] This embodiment provides a rough vacuum super-vaporization cooling system, which can rapidly cool the working equipment 10 in the working section to prevent the working equipment 10 from being damaged or endangered due to overheating.

[0034] Such as Figure 1As shown in the figure, the rough vacuum super-vaporization cooling system includes an air-cooled heat exchanger 100, a vacuum liquid storage tank 200, a first connecting pipeline 300, and a circulation pump 400. The interior of the vacuum liquid storage tank 200 is hollow to form a cavity. The lower space of the cavity is used to store the coolant, and the upper space of the cavity is filled with gas (air). The upper space of the cavity is in a negative pressure state, that is, the coolant is in a negative pressure environment. The first connecting pipeline 300 is connected to the air-cooled heat exchanger 100 and the vacuum liquid storage tank 200 to form a liquid cooling loop. The coolant circulates in the liquid cooling loop. The heat dissipation part of the working device 10 is in heat exchange contact with the liquid cooling loop, and the heat generated by the working device 10 can be taken away by the coolant. The circulation pump 400 is arranged on the first connecting pipeline 300, and the circulation pump 400 can provide power for the circulation of the coolant in the liquid cooling loop, promoting the coolant to circulate between the vacuum liquid storage tank 200, the heat dissipation part of the working device 10, the air-cooled heat exchanger 100 and the vacuum liquid storage tank 200, so as to continuously cool the working device 10 without interruption.

[0035] It should be noted that since the upper space in the cavity is in a negative pressure state, the first connecting pipeline 300 is connected to the bottom of the vacuum liquid storage tank 200, that is, the first connecting pipeline 300 is filled with coolant, that is, the coolant is in a negative pressure environment both in the first connecting pipeline 300 and in the cavity of the vacuum liquid storage tank 200. The boiling point of the coolant is closely related to the pressure of the environment it is in. When the pressure is lower, the boiling point of the coolant is lower. Therefore, keeping the coolant in a negative pressure environment can reduce the boiling point of the coolant, so that when the coolant exchanges heat with the heat dissipation part of the working device 10, it can boil, and the latent heat of vaporization during the boiling of the coolant is used to take away the heat of the working device 10. Since the latent heat of vaporization of the coolant is much larger than the specific heat of the coolant, the cooling effect of this evaporation cooling is more significant, and the cooling effect of the working device 10 is good.

[0036] In addition, since the boiling point of the coolant is related to the pressure of the environment it is in, the adjustment of the absolute pressure in the upper space of the cavity is crucial for the cooling capacity of the rough vacuum super-vaporization cooling system. In this embodiment, taking water as the coolant, when the absolute pressure in the upper space of the cavity is 0.01 MPa, the boiling point of water is 45 °C, and the latent heat of vaporization is 2392 kJ / kg. When the absolute pressure in the upper space of the cavity is lower than 0.01 MPa, water boils at a lower temperature, so that the heat generated by the working device 10 can be taken away more effectively. However, the absolute pressure is not lower the better. It is still necessary to ensure that after the water exchanges heat with the heat dissipation part of the working device 10, the water is still in a liquid state so that it can flow smoothly in the first connecting pipeline 300. If the water becomes steam due to excessive heating, the absolute pressure in the upper space of the cavity will increase, and it cannot always be maintained in a negative pressure state. The operating state of the rough vacuum super-vaporization cooling system is unstable and cannot work properly.

[0037] Exemplarily, in this embodiment, the working device 10 in the working section may be a power battery or an energy storage system. Both the power battery and the energy storage system include a radiator. The radiator includes a shell side and a tube side. The first connection pipeline 300 is connected to the tube side of the radiator, and the shell side of the radiator is in contact with the heat dissipation part of the power battery or the energy storage system. Thus, the heat generated during the charging and discharging process of the power battery or the energy storage system can be transferred to the radiator in a heat conduction manner, and then the heat is carried away by the low-boiling-point water under the condition of rough vacuum in the radiator during the super-vaporization process, realizing the rapid heat dissipation of the working device 10 with good cooling effect.

[0038] In another embodiment, the working device 10 in the working section may be an airborne or vehicle-mounted electronic device. The airborne or vehicle-mounted electronic device also includes a radiator. The tube side of the radiator is also connected to the first connection pipeline 300, and the shell side of the radiator is in contact with the heat dissipation part of the airborne or vehicle-mounted electronic device. During the operation of the airborne or vehicle-mounted electronic device, a large amount of heat is carried away by the low-boiling-point water under the condition of rough vacuum in the radiator during the super-vaporization process, realizing the rapid heat dissipation of the working device 10 with good cooling effect.

[0039] Furthermore, the rough vacuum super-vaporization cooling system in this embodiment further includes a data acquisition and display system 500. A vacuum gauge 210 is provided on the vacuum liquid storage tank 200. The pressure information of the cavity can be detected through the vacuum gauge 210, and the vacuum gauge 210 is communicatively connected to the data acquisition and display system 500. Through the data acquisition and display system 500, the staff can obtain the absolute pressure of the upper space of the cavity of the current vacuum liquid storage tank 200, and judge whether the vacuum degree in the cavity of the vacuum liquid storage tank 200 reaches the target value of the preset absolute pressure by monitoring the absolute pressure value obtained by the vacuum gauge 210, so as to accurately control the vaporization saturation temperature, that is, the boiling point, of the water in the cavity of the vacuum liquid storage tank 200 and in the first connection pipeline 300.

[0040] Optionally, a flange interface is provided on the top of the vacuum liquid storage tank 200 or on the side wall near the top of the vacuum liquid storage tank 200 in this embodiment, and the vacuum gauge 210 is connected to the flange interface, thereby realizing the installation of the vacuum gauge 210.

[0041] Continue to refer to Figure 1, in this embodiment, a flow meter 310 is provided on the first connection pipeline 300. Through the flow meter 310, the real-time flow rate q of the coolant in the first connection pipeline 300 can be detected. The flow meter 310 is communicatively connected to the data acquisition and display system 500. Through the data acquisition and display system 500, the staff can obtain the real-time flow rate q in the current first connection pipeline 300. By monitoring the real-time flow rate q, it can be judged whether the coolant in the current rough vacuum super-vaporization cooling system is circulating normally. When the real-time flow rate q suddenly decreases sharply, it may be that the circulation pump 400 fails, or the first connection pipeline 300 is blocked, or the liquid level of the coolant in the cavity of the vacuum liquid storage tank 200 is too low. Thus, when the real-time flow rate q is abnormal, the staff can be reminded to check the problems in the rough vacuum super-vaporization cooling system, avoiding the continuous operation of the rough vacuum super-vaporization cooling system under abnormal conditions.

[0042] Exemplarily, the flow meter 310 in this embodiment can be an ultrasonic flow meter 310. The ultrasonic flow meter 310 has the characteristics of high accuracy, reliable operation, stable performance, etc., and is simple in daily maintenance, small in size, light in weight, and convenient for installation and commissioning.

[0043] Furthermore, a first temperature sensor 610 is provided in the first connection pipeline 300 upstream of the working device 10. The first temperature sensor 610 is used to detect the real-time temperature T1 of the coolant before flowing through the working device 10. The first temperature sensor 610 is communicatively connected to the data acquisition and display system 500. The data acquisition and display system 500 can enable the staff to obtain the real-time temperature T1 of the coolant in the first connection pipeline 300 upstream of the current working device 10. Through the real-time temperature T1, the incoming flow temperature of the radiator entering the working device 10 can be displayed, so as to monitor the relative subcooling degree (temperature difference) between the real-time temperature T1 and the saturated vapor temperature of the coolant in the rough vacuum environment, ensuring the stable operation of the radiator of the working device 10 in the rough vacuum super-vaporization heat exchange state. At the same time, the real-time temperature T1 also reflects the working state of the air-cooled heat exchanger 100 to a certain extent. If the subcooling degree between the real-time temperature T1 and the saturated vapor temperature of the coolant in the current rough vacuum state is small, that is, the real-time temperature T1 is too high, it indicates that there may be problems with the working state of the air-cooled heat exchanger 100, and the temperature of the coolant in the vacuum liquid storage tank 200 is in a relatively high state, and troubleshooting is required.

[0044] A second temperature sensor 620 is provided in the first connecting pipeline 300 downstream of the working device 10. The second temperature sensor 620 is used to detect the real-time temperature T2 of the coolant after flowing through the working device 10. The second temperature sensor 620 is communicatively connected to the data acquisition and display system 500. The data acquisition and display system 500 enables the staff to obtain the real-time temperature T2 in the first connecting pipeline 300 downstream of the current working device 10. Through the real-time temperature T2, the temperature of the coolant after flowing through the radiator of the working device 10 can be displayed. The temperature rise of the coolant after flowing through the radiator of the working device 10 can be calculated based on the real-time temperature T1 and the real-time temperature T2. And according to the formula: Q = Cm(T2 - T1), the heat exchange power of the current coolant can be calculated. According to the energy balance, the heat dissipation power of the heat source working can be deduced. The heat source is the heat dissipation part of the working device 10, so as to indirectly show whether the working device 10 is working normally. When the heat dissipation power is abnormal, a quick response is made for troubleshooting to avoid danger and large losses. In addition, it is necessary to ensure that the real-time temperature T2 is lower than the saturation vapor temperature of the coolant under the current air pressure, so that the coolant flowing in the first connecting pipeline 300 is in a liquid state, ensuring the normal circulation of the coolant.

[0045] A third temperature sensor 630 is provided at the heat dissipation part of the working device 10. The third temperature sensor 630 is used to detect the real-time temperature T3 of the heat dissipation part of the working device 10. The third temperature sensor 630 is communicatively connected to the data acquisition and display system 500. The data acquisition and display system 500 enables the staff to obtain the real-time temperature T3 of the heat dissipation part of the current working device 10. Through the real-time temperature T3, the temperature of the heat dissipation part of the working device 10 can be directly displayed. When the real-time temperature T3 increases sharply, it indicates that the current working device 10 is working abnormally, or it may also be that the first connecting pipeline 300 fails. As long as the real-time temperature T3 is monitored to be abnormal, the working device 10 needs to be powered off, and the working device 10 and the first connecting pipeline 300 need to be checked. At the same time, the real-time temperature T3 is also a secondary confirmation of the detection results of the first temperature sensor 610 and the second temperature sensor 620, ensuring the accuracy of the detection results of the first temperature sensor 610 and the second temperature sensor 620, and avoiding the situation where the first temperature sensor 610 and the second temperature sensor 620 work abnormally and the staff is not aware of it, further ensuring the normal operation of the rough vacuum super-vaporization cooling system.

[0046] Continue to refer to Figure 1, a first valve 320 is provided on the first connection pipeline 300, and the opening degree of the first valve 320 can be adjusted. Without changing the working power of the circulation pump 400, the flow rate of the coolant in the first connection pipeline 300 can be adjusted through the first valve 320. When the first valve 320 is fully closed, the coolant stops flowing; when the first valve 320 is fully opened, the flow rate of the coolant reaches the maximum. Of course, without changing the opening degree of the first valve 320, the flow rate of the coolant in the first connection pipeline 300 can also be adjusted by changing the working power of the circulation pump 400.

[0047] Furthermore, the rough vacuum super-vaporization cooling system further includes a vacuum pump 700 and a second connection pipeline 800. The two ends of the second connection pipeline 800 are respectively connected to the vacuum pump 700 and the vacuum liquid storage tank 200. The vacuum pump 700 is used to make the cavity of the vacuum liquid storage tank 200 in a negative pressure state. By adjusting the working power of the vacuum pump 700, the absolute pressure of the upper space of the cavity of the vacuum liquid storage tank 200 can be adjusted, so that the absolute pressure of the upper space of the cavity of the vacuum liquid storage tank 200 is always maintained at the target preset absolute pressure, ensuring the stable operation state of the rough vacuum super-vaporization cooling system and being able to continuously cool the working equipment 10.

[0048] Optionally, a second valve 810 is provided on the second connection pipeline 800, and the opening degree of the second valve 810 can be adjusted. Without changing the working power of the vacuum pump 700, the flow rate of the gas in the second connection pipeline 800 can be adjusted through the second valve 810. When the second valve 810 is fully closed, the gas stops flowing; when the second valve 810 is fully opened, the flow rate of the gas reaches the maximum. Of course, without changing the opening degree of the second valve 810, the flow rate of the gas in the second connection pipeline 800 can also be adjusted by changing the working power of the vacuum pump 700, that is, the flow rate of the gas pumped out by the vacuum pump 700 from the cavity of the vacuum liquid storage tank 200.

[0049] See Figure 2 , the air-cooled heat exchanger 100 includes a housing 110 and a plurality of fins 120. A flow space 111 for the coolant to flow is formed inside the housing 110, and the plurality of fins 120 are arranged at intervals on the outer wall surface of the housing 110. When the coolant flows through the air-cooled heat exchanger 100, the heat of the coolant can be transferred to the housing 110. Then, when the air flow passes through the fins 120, the fins 120 quickly dissipate the heat of the housing 110, reducing the temperature of the coolant so that the coolant can perform the next cycle and continuously cool the working equipment 10.

[0050] Of course, in some embodiments, the air-cooled heat exchanger 100 further includes a fan. The fan is disposed on one side of the housing 110, and air is blown toward the direction where the housing 110 is located through the fan, so that the airflow takes away the heat around the housing 110 and the fins 120 disposed on the housing 110, achieving good cooling of the coolant.

[0051] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A rough vacuum super-evaporation cooling system for cooling working equipment (10) in a working section, characterized in that: The rough vacuum super vaporization cooling system comprises: Air-cooled heat exchanger (100); A vacuum liquid storage tank (200) having a hollow interior to form a cavity, the cavity being used to store cooling liquid, the cavity being in a negative pressure state; A first connecting pipeline (300) is connected to the air-cooled heat exchanger (100) and the vacuum liquid storage tank (200) to form a liquid cooling circuit, the coolant flows in the liquid cooling circuit, and the heat dissipation part of the working equipment (10) is in heat exchange contact with the liquid cooling circuit; A circulation pump (400) is arranged on the first connecting pipeline (300), and the circulation pump (400) is used to provide power for the circulation of the coolant in the liquid cooling circuit.

2. The rough vacuum superevaporation cooling system according to claim 1, characterized in that: The rough vacuum super-vaporization cooling system comprises a data acquisition and display system (500); a vacuum gauge (210) is provided on the vacuum liquid storage tank (200); the vacuum gauge (210) is used to detect pressure information of the cavity; and the vacuum gauge (210) is communicatively connected to the data acquisition and display system (500).

3. The rough vacuum superevaporation cooling system according to claim 2, characterized in that: A flange interface is provided on the top of the vacuum liquid storage tank (200) or on a side wall close to the top of the vacuum liquid storage tank (200), and the vacuum gauge (210) is connected to the flange interface.

4. The rough vacuum superevaporation cooling system according to claim 2, characterized in that: A flow meter (310) is provided on the first connecting pipeline (300), and the flow meter (310) is used to detect the real-time flow rate q of the coolant in the first connecting pipeline (300). The flow meter (310) is communicatively connected to the data acquisition and display system (500).

5. The rough vacuum superevaporation cooling system according to claim 4, characterized in that: The flow meter (310) is an ultrasonic flow meter (310).

6. The rough vacuum superevaporation cooling system according to claim 2, characterized in that: A first temperature sensor (610) is provided in the first connecting pipeline (300) located upstream of the working device (10), the first temperature sensor (610) being used to detect the real-time temperature T1 of the coolant before it flows through the working device (10), and the first temperature sensor (610) is communicatively connected to the data acquisition and display system (500); A second temperature sensor (620) is provided in the first connecting pipeline (300) located downstream of the working device (10), the second temperature sensor (620) is used to detect the real-time temperature T2 of the coolant after it flows through the working device (10), and the second temperature sensor (620) is communicatively connected to the data acquisition and display system (500); A third temperature sensor (630) is provided at the heat dissipation part of the working device (10), and the third temperature sensor (630) is used to detect the real-time temperature T3 of the heat dissipation part of the working device (10). The third temperature sensor (630) is communicatively connected to the data acquisition and display system (500).

7. The rough vacuum superevaporation cooling system according to claim 1, characterized in that: The first connecting pipeline (300) is provided with a first valve (320), and the first valve (320) is used to adjust the flow rate of the cooling liquid in the first connecting pipeline (300).

8. The rough vacuum superevaporation cooling system according to claim 1, characterized in that: The rough vacuum super-vaporization cooling system comprises a vacuum pump (700) and a second connecting pipeline (800), wherein two ends of the second connecting pipeline (800) are respectively connected to the vacuum pump (700) and the vacuum liquid storage tank (200), and the vacuum pump (700) is used to put the cavity of the vacuum liquid storage tank (200) in a negative pressure state.

9. The rough vacuum superevaporation cooling system according to claim 8, characterized in that: The second connecting pipeline (800) is provided with a second valve (810), and the second valve (810) is used to adjust the flow rate of the gas in the second connecting pipeline (800).

10. The rough vacuum superevaporation cooling system according to claim 1, characterized in that: The air-cooled heat exchanger (100) comprises a shell (110) and a plurality of fins (120); a circulation space (111) for the coolant to flow is formed in the shell (110); and the plurality of fins (120) are arranged at intervals on the outer wall surface of the shell (110).

Images