Active and passive heat conduction integrated system for container type energy storage power station

By designing an integrated system for main and passive thermal discharging in container-type energy storage power stations, and switching the main and passive cooling modes is achieved by using compressors and switching pipelines, the problems of low thermal management efficiency and high energy consumption in the existing technology are solved. , extends the system life and improves the temperature control accuracy and cold air dispersion effect.

CN119268152AActive Publication Date: 2025-01-07NINGBO HICON IND +1
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Patent Information

Application Number
CN202411399128.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-09
Publication Date
2025-01-07
Estimated Expiration
2044-10-09

AI Technical Summary

Technical Problem

The thermal management method of existing container energy storage power plants is mainly air-cooling, with low refrigeration effect and cannot achieve precise temperature control. Large equipment needs to operate for a long time, resulting in high energy consumption and short service life.

Method used

Design an integrated system for active and passive thermal dissipation, including a compressor, condenser, throttling component and evaporator, and actively cool down through the compressor, throttling component and evaporator. And by switching the pipeline, a passive circulation loop is formed when the compressor is not involved, reducing energy consumption and extending the system life.

Benefits of technology

It realizes efficient cooling of container-type energy storage power stations, reduces energy consumption, avoids long-term operation of compressors, extends the service life of the system, and improves temperature detection and cold air dispersion effects through multiple temperature sensors and guide air hoods.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to an active and passive heat dredging integrated system for a container type energy storage power station. The problems that an existing device needs a compressor to operate for a long time, energy consumption is large, and the service life of a cooling system can be shortened are effectively solved. According to the active and passive heat dredging integrated system for the container type energy storage power station, refrigerants in a pipeline can be driven by the compressor to sequentially flow through the compressor, the condenser, the throttling component and the evaporator and return to the compressor again, a circulation loop is formed, and active cooling of the container type energy storage power station can be achieved; the refrigerant can also flow through the evaporator, the first switching pipeline, the condenser and the second switching pipeline in sequence and flow back to the evaporator again to form another circulation loop, and according to the operation mode, the container type energy storage power station can be passively cooled when the temperature in the container type energy storage power station is high; the switching of the two modes can reduce energy consumption and avoid long-time continuous operation of the compressor, and the service life of the whole system is prolonged.
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Description

Technical Field

[0001] The present invention belongs to the technical field of heat dissipation systems for energy storage power stations, and in particular relates to an active and passive heat dissipation integrated system for containerized energy storage power stations. Background Art

[0002] The container energy storage system is an integrated energy storage system developed to meet the needs of the mobile energy storage market. It integrates battery cabinets, lithium battery management systems, and container dynamic environment monitoring systems. It can also integrate energy storage inverters and energy management systems according to customer needs. At present, domestic container energy storage power stations are widely used and supported by national and local policies. The technical solutions of container energy storage power stations are also constantly explored and innovated.

[0003] At present, the thermal management method for containerized energy storage power stations is mainly air cooling, and its principle is similar to that of small household air conditioners. The core components of air-cooled air conditioners include compressors, condensers, fan motors, copper tubes, etc. However, the existing equipment has a low cooling effect and cannot achieve precise temperature control. In addition, a large number of heating equipment in containerized energy storage power stations need to be cooled all year round. If cooling is completely dependent on the air conditioning system, the air conditioning compressor needs to run for a long time, which consumes a lot of energy and reduces the service life of the cooling system. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an integrated active and passive heat conduction system for a containerized energy storage power station. The integrated active and passive heat conduction system for a containerized energy storage power station can realize arbitrary switching between the active cooling mode and the passive cooling mode according to the situation, can reduce energy consumption and avoid long-term continuous operation of the compressor, thereby extending the overall service life of the system.

[0005] An integrated active and passive heat conduction system for a containerized energy storage power station, comprising a compressor, a condenser, a throttling component and an evaporator, wherein the outlet of the compressor is connected to the inlet of the condenser through a pipeline, the outlet of the condenser is connected to the inlet of the evaporator through a pipeline, and the throttling component is connected in series in the pipeline between the condenser and the evaporator and can control the flow rate of the working medium in the pipeline, the outlet of the evaporator is connected to the inlet of the compressor through a pipeline, and the compressor, condenser, throttling component and evaporator are connected through the pipeline to form a circulation loop; It includes a liquid storage tank, the bottom end of which is fixedly connected with a liquid inlet pipe and a liquid outlet pipe, and the liquid storage tank is connected in parallel to the pipeline at the outlet end of the condenser through the liquid inlet pipe and the liquid outlet pipe; it also includes a first switching pipeline and a second switching pipeline, the first switching pipeline is arranged on the pipelines at the inlet and outlet ends of the compressor and is connected in parallel with the compressor, the second switching pipeline is arranged on the pipelines at the outlet end of the condenser and the inlet end of the evaporator and is connected in parallel with the throttling component, and the evaporator, the first switching pipeline, the condenser and the second switching pipeline are connected by pipelines to form another circulation loop.

[0006] Preferably, it also includes a container body equipped with an energy storage power station, a first temperature sensor and a second temperature sensor, the compressor and the condenser are both arranged on one side of the top of the container body, the upper surface of the container body is fixedly connected to a mounting frame on which the condenser can be placed and its height can be raised, and the condenser is fixedly connected to the outside of the mounting frame.

[0007] Preferably, the evaporator is fixedly mounted on the top of the inner wall of the container body and the pipes at its inlet and outlet ends are passed through the container body, the condenser and the evaporator have a certain positive height difference in the vertical direction, and the number of the first temperature sensors is several and the several first temperature sensors are evenly mounted on the inner wall of the container body.

[0008] Preferably, a protective box that can protect the condenser, throttling component, compressor and the pipelines between them is fixedly connected to the outside of the mounting frame. The protective box is sleeved on the outside of the condenser, throttling component, compressor and the pipelines between them and fixedly connected to the outside of the container body. The second temperature sensor is fixedly installed on the outer surface of the protective box.

[0009] Preferably, the first switching pipeline (8) is connected to the pipeline between the inlet and outlet ends of the compressor (1), and the second switching pipeline (9) is connected to the pipelines at both ends of the throttling component (3).

[0010] Preferably, first three-way solenoid valves are installed at the connecting parts between the two ends of the first switching pipeline and the compressor inlet and outlet pipelines, and the first three-way solenoid valves can control the opening and closing of the first switching pipeline and the compressor inlet and outlet.

[0011] Preferably, a second three-way solenoid valve is installed at the connecting parts between the two ends of the second switching pipeline and the pipelines at both ends of the throttling component, and the second three-way solenoid valve can control the opening and closing of the second switching pipeline and the pipelines at both ends of the throttling component.

[0012] Preferably, a first guide wind hood and a second guide wind hood are fixedly connected to the top of the inner wall of the container body, the first guide wind hood is sleeved on the outside of the evaporator and fixedly connected to the top of the inner wall of the container body, an air guide duct is fixedly connected to the outside of the first guide wind hood, and the air guide duct is connected to the inside of the first guide wind hood and corresponds to the air outlet of the evaporator.

[0013] Preferably, the number of the second air guide hoods is four and the four second air guide hoods are equidistantly fixedly installed on the top of the inner wall of the container body, and the four second air guide hoods are connected to each other through air guide ducts and are all connected to the inside of the first air guide hood.

[0014] Preferably, a first one-way solenoid valve and a second one-way solenoid valve that can control the on and off of the liquid inlet pipe and the liquid outlet pipe are fixedly installed in the middle of each pipe, respectively. The first one-way solenoid valve can control the liquid in the pipeline at the outlet end of the condenser to flow one-way into the liquid storage tank through the liquid inlet pipe, and the second one-way solenoid valve can control the liquid in the liquid storage tank to flow one-way into the pipeline at the outlet end of the condenser through the liquid outlet pipe.

[0015] The above technical solution has the following beneficial effects:

[0016] (1) The active and passive heat conduction integrated system for containerized energy storage power stations can drive the refrigerant in the pipeline to flow through the compressor, condenser, throttling component and evaporator in sequence and return to the compressor through the operation of the compressor, forming a circulation loop, which can realize active cooling of the containerized energy storage power station; the compressor pipeline and the throttling component pipeline can also be controlled to be closed, and the first switching pipeline and the second switching pipeline are circulated, so that the refrigerant flows through the evaporator, the first switching pipeline, the condenser and the second switching pipeline in sequence and flows back to the evaporator to form another circulation loop. This operation mode does not require the participation of the compressor and can passively cool the interior of the containerized energy storage power station when the internal temperature is high. The switching between the two modes can reduce energy consumption and avoid long-term continuous operation of the compressor, thereby extending the overall service life of the system; and the liquid storage tank can adapt to the two circulation loops, so that the working quality of the two modes can be in the best state and better matched with the corresponding mode, ensuring that the active and passive heat conduction integrated system can maintain the best operating state in both modes and achieve a good cooling effect;

[0017] (2) The active and passive heat conduction integrated system for container-type energy storage power stations can perform real-time temperature detection on various parts of the container body by setting multiple first temperature sensors in different parts of the container body, and can calculate the actual temperature of the container body by collating and calculating all the detection data, thereby improving the accuracy of temperature detection in the container body, and then controlling the temperature in the container body with higher precision through the active and passive heat conduction integrated system. The setting of multiple guide wind hoods can make the cold air blown out of the evaporator blow to various parts of the container body through the guide wind hood, so that the diffusion range of the cold air can be more uniform, and various parts of the container body can be cooled down in a timely and effective manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the protection box of the present invention and its internal structure;

[0020] Figure 3 It is a schematic diagram of the condenser, compressor, evaporator and their pipelines of the present invention;

[0021] Figure 4 It is a cross-sectional schematic diagram of the protection box of the present invention;

[0022] Figure 5 Schematic diagram of the first guide wind shield and the second guide wind shield of the present invention;

[0023] Figure 6 For the present invention Figure 5 Schematic diagram of the splitting.

[0024] In the figure: 1. compressor; 2. condenser; 3. throttling component; 4. evaporator; 5. liquid storage tank; 6. liquid inlet pipe; 7. liquid outlet pipe; 8. first switching pipeline; 9. second switching pipeline; 10. container body; 11. first temperature sensor; 12. second temperature sensor; 13. mounting frame; 14. protective box; 15. first three-way solenoid valve; 16. second three-way solenoid valve; 17. first guide air hood; 18. second guide air hood; 19. air guide duct; 20. first one-way solenoid valve; 21. second one-way solenoid valve. DETAILED DESCRIPTION

[0025] The above and other technical contents, features and effects of the present invention are described in detail below with reference to the attached Figures 1 to 6 The embodiments are described in detail.

[0026] This embodiment provides an active and passive heat conduction integrated system for a containerized energy storage power station, as shown in the attached Figure 1-6As shown, it includes a compressor 1, a condenser 2, a throttling component 3 and an evaporator 4. The outlet end of the compressor 1 is connected to the inlet end of the condenser 2 through a pipeline, the outlet end of the condenser 2 is connected to the inlet end of the evaporator 4 through a pipeline, and the throttling component 3 is connected in series in the pipeline between the condenser 2 and the evaporator 4 and can control the flow rate of the working medium in the pipeline. The throttling component 3 is a throttle valve, and the working medium in the pipeline is the refrigerant; the outlet end of the evaporator 4 is connected to the inlet end of the compressor 1 through a pipeline, and the compressor 1, condenser 2, throttling component 3 and evaporator 4 are connected through pipelines to form a circulation loop, which is a compressor system driven by the compressor 1, and it is an active cooling mode.

[0027] Driven by the compressor 1, since the working fluid output from the evaporator 4 is in a high-temperature gaseous state, after being compressed by the compressor 1, the working fluid will become a high-temperature liquid and enter the condenser 2. The working fluid output from the condenser 2 after heat exchange is a low-temperature and high-pressure liquid, and then flows through the throttling component 3 into the evaporator 4, thereby performing heat exchange and cooling on the container body 10 through the evaporator 4.

[0028] It also includes a liquid storage tank 5, the bottom end of which is fixedly connected to a liquid inlet pipe 6 and a liquid outlet pipe 7, the liquid storage tank 5 is connected in parallel to the pipeline at the outlet end of the condenser 2 through the liquid inlet pipe 6 and the liquid outlet pipe 7, and the middle of the liquid inlet pipe 6 and the liquid outlet pipe 7 are respectively fixedly installed with a first one-way solenoid valve 20 and a second one-way solenoid valve 21 that can control their on and off. The first one-way solenoid valve 20 can control the liquid in the pipeline at the outlet end of the condenser 2 to flow unidirectionally into the liquid storage tank 5 through the liquid inlet pipe 6, and the second one-way solenoid valve 21 can control the liquid in the liquid storage tank 5 to flow unidirectionally into the pipeline at the outlet end of the condenser 2 through the liquid outlet pipe 7.

[0029] When the cooling system is driven by the compressor 1, since less refrigerant is required when the compressor 1 is driven, the first one-way solenoid valve 20 can be controlled to open by the control unit, and the low-temperature and high-pressure liquid working fluid flowing out from the outlet end of the condenser 2 will flow into a part of the liquid storage tank 5 through the liquid inlet pipe 6 under the action of the pressure difference, thereby discharging excess working fluid. When the working fluid content in the main line is at an appropriate content under the compressor operation mode, the first one-way valve 20 is closed. At this time, when the compressor 1 is running, the working fluid content in the main line is at an optimal content under this mode, and the excess working fluid is temporarily stored in the liquid storage tank 5 and will not affect the main line.

[0030] The refrigerant is compressed in the compressor 1, at which time the temperature of the refrigerant rises and the pressure increases. Then the high-temperature and high-pressure gaseous refrigerant enters the condenser 2 to release heat, thereby becoming a low-temperature and high-pressure liquid refrigerant. Next, after throttling by the throttling component 3, the refrigerant becomes a low-temperature and low-pressure liquid or a gas-liquid two-phase state. Finally, the refrigerant enters the evaporator 4 to absorb heat and evaporate, thereby cooling the surrounding air or water and cooling the interior of the container body 10. The low-temperature and low-pressure liquid refrigerant passing through the evaporator 4 will become a high-temperature gas after absorbing heat, and then re-enter the compressor 1, thereby forming a cycle, which can actively cool the inside of the container body 10.

[0031] It also includes a first switching pipeline 8 and a second switching pipeline 9. The first switching pipeline 8 is arranged on the pipelines at the inlet and outlet ends of the compressor 1 and is connected in parallel with the compressor 1. The first switching pipeline 8 is connected to the pipeline between the inlet and outlet ends of the compressor 1. The connecting parts between the two ends of the first switching pipeline 8 and the pipelines at the inlet and outlet ends of the compressor 1 are both installed with a first three-way solenoid valve 15. The first three-way solenoid valve 15 can control the opening and closing of the first switching pipeline 8 and the inlet and outlet ends of the compressor 1.

[0032] The second switching pipeline 9 is arranged on the pipeline between the outlet end of the condenser 2 and the inlet end of the evaporator 4 and is connected in parallel with the throttling component. The second switching pipeline 9 is connected with the pipelines at both ends of the throttling component 3. The connecting parts of the two ends of the second switching pipeline 9 and the pipelines at both ends of the throttling component 3 are both installed with second three-way solenoid valves 16. The second three-way solenoid valve 16 can control the on-off of the second switching pipeline 9 and the pipelines at both ends of the throttling component 3. The evaporator 4, the first switching pipeline 8, the condenser 2 and the second switching pipeline 9 are connected through pipelines to form another circulation loop. The circulation loop is a non-powered heat pipe system, which is a passive cooling mode.

[0033] When the compressor 1 is not in use, the first three-way solenoid valve 15 and the second three-way solenoid valve 16 can be controlled by the control unit to connect the first switching pipeline 8 and the second switching pipeline 9 to the main pipeline, while the pipelines at both ends of the compressor 1 and the pipelines at both ends of the throttling component 3 are closed, forming another circulation loop connected between the evaporator 4, the first switching pipeline 8, the condenser 2 and the second switching pipeline 9, so that the system is switched from being driven by the compressor 1 to passive operation. In this mode, more working fluids are required, and the second one-way valve 21 on the liquid outlet pipe 6 can be controlled to open. Since the compressor 1 does not participate in the operation, the pressure at the outlet end of the condenser 2 is reduced, and the high-pressure liquid working fluid stored in the liquid storage tank 5 will flow into the main pipeline under the action of the pressure difference. When the working fluid content in the main pipeline is suitable for this operating mode, the second one-way solenoid valve 21 is closed. At this time, the liquid storage tank 5 no longer participates in the operation of the main pipeline and will not affect the main pipeline.

[0034] The high-pressure liquid refrigerant discharged from the liquid storage tank 5 will flow through the second switching pipeline 9 into the evaporator 4 under the action of the pressure difference between the upper and lower parts of the main pipeline. After the evaporator 4 absorbs heat from the container body 10 to cool down the inside, the working fluid will be converted into a high-temperature gaseous state. The high-temperature gaseous working fluid has a relatively low pressure and, under the action of its own buoyancy, continues to flow through the first switching pipeline 8 into the condenser 2. The condenser 2 re-condenses the high-temperature gaseous working fluid into a low-temperature liquid and continues to circulate to the evaporator 4, thereby forming a passive heat dissipation system, which can reduce power consumption and extend the service life of the overall system.

[0035] It also includes a container body 10 equipped with an energy storage power station, a first temperature sensor 11 and a second temperature sensor 12. The compressor 1 and the condenser 2 are both arranged on one side of the top of the container body 10. The upper surface of the container body 10 is fixedly connected to a mounting frame 13 on which the condenser 2 can be placed and its height is raised. The condenser 2 is fixedly connected to the outside of the mounting frame 13. The evaporator 4 is fixedly installed on the top of the inner wall of the container body 10 and the pipelines at its inlet and outlet ends are both passed through the container body 10. The condenser 2 and the evaporator 4 have a certain positive height difference in the vertical direction. The mounting frame 13 can make the condenser 2 and the evaporator 4 have a certain positive height difference. When the passive heat dissipation mode is adopted, the heat dissipation of the integrated system will increase with the increase of the positive height difference between the absolute installation heights of the condenser 2 and the evaporator 4. Therefore, the height of the condenser 4 can be set as high as possible. The height of the evaporator 4, correspondingly, due to the increase in the length of the pipeline, the working quality in the entire integrated system will also change, which needs to be calculated and considered when the working fluid is charged.

[0036] There are several first temperature sensors 11 and the several first temperature sensors 11 are evenly installed on the inner wall of the container body 10. The actual temperature inside the container body 10 can be accurately measured by the several first temperature sensors 11, and then the system can be precisely temperature controlled to ensure sufficient heat dissipation inside the container body 10.

[0037] The outside of the mounting frame 13 is fixedly connected with a protection box 14 which can protect the condenser 2, the throttling component 3, the compressor 1 and the pipelines therebetween. The protection box 14 is sleeved on the outside of the condenser 2, the throttling component 3, the compressor 1 and the pipelines therebetween and is fixedly connected to the outside of the container body 10. An openable door is provided on the side of the protection box 14 near the compressor 1, and the operator can open the door to add refrigerant into the compressor 1; the second temperature sensor 12 is fixedly installed on the outer surface of the protection box 14, and the second temperature sensor 12 can measure the external temperature of the container body 10, so as to select the active cooling mode or the passive cooling mode according to the external temperature of the container body 10 and the internal temperature difference.

[0038] The first temperature sensor 11 and the second temperature sensor 12 are connected to the control unit respectively, and the collected internal temperature and external temperature of the container body 10 are sent to the control unit, and the control unit obtains the actual external and internal temperatures and calculates the temperature difference. After comparing with the preset threshold value in the control unit, the active cooling mode or the passive cooling mode is selected; for example, when the external temperature of the container body 10 is high or the internal temperature is high, the active cooling mode is operated, and the inside of the container body 10 is actively cooled by the operation of the compressor 1; when the external temperature of the container body 10 is low or the internal temperature is lower than the preset threshold value, the passive cooling mode can be used for energy saving considerations. The passive cooling mode only needs to operate the condensing fan in the condenser 2 and the evaporating fan in the evaporator 4, so the energy utilization rate is high, and it is started when the indoor temperature difference is large, and at the same time it avoids the operation of the active cooling system when the external ambient temperature of the container body 10 is low, which may cause the compressor 1 to exceed the safe operating range.

[0039] The top of the inner wall of the container body 10 is fixedly connected with a first guide wind cover 17 and a second guide wind cover 18. The first guide wind cover 17 is sleeved on the outside of the evaporator 4 and fixedly connected to the top of the inner wall of the container body 10. The first guide wind cover 17 is fixedly connected to the outside of the first guide wind cover 17 with an air guide duct 19, and the air guide duct 19 is connected to the inside of the first guide wind cover 17 and corresponds to the air outlet of the evaporator 4. The number of the second guide wind covers 18 is four, and the four second guide wind covers 18 are fixedly installed at the top of the inner wall of the container body 10 at equal distances. The four second guide wind covers 18 are connected to each other through the air guide duct 19 and are all connected to the inside of the first guide wind cover 17, and the air is blown out from the outlet of the evaporator 4. A part of the cold wind will enter the multiple second guide wind covers 18 from the air duct 19, and the first guide wind cover 17 and the second guide wind cover 18 are both fan-shaped structures with an opening downward, which can guide the cold wind, so that the cold wind is blown directly downward under the action of the first guide wind cover 17 and the second guide wind cover 18, so as to prevent the energy storage equipment from being directly blown by the cold wind for a long time and generating water vapor, and at the same time, it can also ensure the overall cooling of the container body 10. The multiple second guide wind covers 18 can divert the cold wind so that the cold wind can be blown to various parts of the container body 10, ensuring that the cold wind blown into the container body 10 is more dispersed, and preventing a large temperature difference from occurring in different parts inside.

[0040] The compressor 1, the condenser 2, the throttling component, the evaporator 4, the first temperature sensor 11, the second temperature sensor 12, the first three-way solenoid valve 15, the second three-way solenoid valve 16, the first one-way solenoid valve 20 and the second one-way solenoid valve 21 are all electrically connected to the control unit.

[0041] In summary, the active and passive heat conduction integrated system for containerized energy storage power stations has the following steps:

[0042] 1. When the external temperature or the internal temperature of the container body 10 is high, the active cooling mode is operated, and the refrigerant is compressed in the compressor 1. At this time, the refrigerant temperature rises, the pressure rises, and then the high-temperature and high-pressure gaseous refrigerant enters the condenser 2 to release heat, thereby becoming a low-temperature and high-pressure liquid refrigerant. The excess refrigerant in the main line can be stored in the liquid storage tank 5;

[0043] 2. Next, after being throttled by the throttling component 3, the refrigerant becomes a low-temperature and low-pressure liquid or a gas-liquid two-phase state, and finally the refrigerant enters the evaporator 4 to absorb heat and evaporate, thereby cooling the surrounding air or water and cooling the interior of the container body 10. The low-temperature and low-pressure liquid refrigerant passing through the evaporator 4 will become a high-temperature gas after absorbing heat, and then re-enter the compressor 1, thereby forming a cycle;

[0044] 3. When the external temperature of the container body 10 is low or the internal temperature is lower than a preset threshold, a passive cooling mode can be adopted, and the first three-way solenoid valve 15 and the second three-way solenoid valve 16 can be controlled by the control unit to connect the first switching pipeline 8 and the second switching pipeline 9 with the main pipeline, while the pipelines at both ends of the compressor 1 and the pipelines at both ends of the throttling component 3 are closed, forming another circulation loop connecting the evaporator 4, the first switching pipeline 8, the condenser 2 and the second switching pipeline 9;

[0045] 4. The high-pressure liquid refrigerant discharged from the liquid storage tank 5 will flow through the second switching pipeline 9 into the evaporator 4 under the action of the pressure difference between the upper and lower parts of the main pipeline. After the evaporator 4 absorbs heat from the container body 10 to cool down the inside, the working fluid will be converted into a high-temperature gaseous state. The high-temperature gaseous working fluid has a relatively low pressure and, under the action of its own buoyancy, continues to flow through the first switching pipeline 8 into the condenser 2. The condenser 2 re-condenses the high-temperature gaseous working fluid into a low-temperature liquid and continues to circulate to the evaporator 4, thereby forming a passive heat dissipation system.

[0046] The above description is only for illustrating the present invention. It should be understood that the present invention is not limited to the above embodiments, and various variations that conform to the concept of the present invention are within the protection scope of the present invention.

Claims

1. An integrated active and passive heat conduction system for a containerized energy storage power station, comprising a compressor (1), a condenser (2), a throttling component (3) and an evaporator (4), characterized in that: The outlet end of the compressor (1) is connected to the inlet end of the condenser (2) through a pipeline, the outlet end of the condenser (2) is connected to the inlet end of the evaporator (4) through a pipeline, and the throttling component (3) is connected in series in the pipeline between the condenser (2) and the evaporator (4) and can control the flow rate of the working medium in the pipeline, the outlet end of the evaporator (4) is connected to the inlet end of the compressor (1) through a pipeline, and the compressor (1), condenser (2), throttling component (3) and evaporator (4) are connected through the pipeline to form a circulation loop; It also comprises a liquid storage tank (5), the bottom end of which is fixedly connected with a liquid inlet pipe (6) and a liquid outlet pipe (7), and the liquid storage tank (5) is connected in parallel to the pipeline at the outlet end of the condenser (2) through the liquid inlet pipe (6) and the liquid outlet pipe (7); The invention also comprises a first switching pipeline (8) and a second switching pipeline (9), wherein the first switching pipeline (8) is arranged on the pipelines at the inlet and outlet ends of the compressor (1) and is connected in parallel with the compressor (1), and the second switching pipeline (9) is arranged on the pipelines at the outlet end of the condenser (2) and the inlet end of the evaporator (4) and is connected in parallel with the throttling component, and the evaporator (4), the first switching pipeline (8), the condenser (2) and the second switching pipeline (9) are connected through pipelines to form another circulation loop.

2. According to claim 1, an integrated active and passive heat conduction system for a containerized energy storage power station is characterized in that: It also includes a container body (10) equipped with an energy storage power station, a first temperature sensor (11) and a second temperature sensor (12), the compressor (1) and the condenser (2) are both arranged on one side of the top of the container body (10), the upper surface of the container body (10) is fixedly connected to a mounting frame (13) on which the condenser (2) can be placed and its height can be raised, and the condenser (2) is fixedly connected to the outside of the mounting frame (13).

3. The active and passive heat conduction integrated system for containerized energy storage power station according to claim 2 is characterized in that: The evaporator (4) is fixedly mounted on the top of the inner wall of the container body (10), and the pipelines at its inlet and outlet ends are both passed through the container body (10); the condenser (2) and the evaporator (4) have a certain positive height difference in the vertical direction; the number of the first temperature sensors (11) is several, and the several first temperature sensors (11) are evenly mounted on the inner wall of the container body (10).

4. The active and passive heat conduction integrated system for containerized energy storage power station according to claim 2 is characterized in that: The outside of the mounting frame (13) is fixedly connected to a protection box (14) that can protect the condenser (2), the throttling component (3), the compressor (1) and the pipelines therebetween. The protection box (14) is sleeved on the outside of the condenser (2), the throttling component (3), the compressor (1) and the pipelines therebetween and is fixedly connected to the outside of the container body (10). The second temperature sensor (12) is fixedly mounted on the outer surface of the protection box (14).

5. The active and passive heat conduction integrated system for containerized energy storage power station according to claim 1 is characterized in that: The first switching pipeline (8) is connected to the pipeline between the inlet end and the outlet end of the compressor (1), and the second switching pipeline (9) is connected to the pipelines at both ends of the throttling component (3).

6. The active and passive heat conduction integrated system for containerized energy storage power station according to claim 1, characterized in that: A first three-way solenoid valve (15) is installed at the connecting parts of the two ends of the first switching pipeline (8) and the pipelines at the inlet and outlet ends of the compressor (1). The first three-way solenoid valve (15) can control the opening and closing of the first switching pipeline (8) and the inlet and outlet ends of the compressor (1).

7. The active and passive heat conduction integrated system for containerized energy storage power station according to claim 1 is characterized in that: A second three-way solenoid valve (16) is installed at the connecting parts of the two ends of the second switching pipeline (9) and the pipelines at the two ends of the throttling component (3). The second three-way solenoid valve (16) can control the opening and closing of the pipelines at the two ends of the second switching pipeline (9) and the throttling component (3).

8. The active and passive heat conduction integrated system for containerized energy storage power station according to claim 2, characterized in that: A first guide air hood (17) and a second guide air hood (18) are fixedly connected to the top of the inner wall of the container body (10); the first guide air hood (17) is sleeved on the outside of the evaporator (4) and fixedly connected to the top of the inner wall of the container body (10); an air guide duct (19) is fixedly connected to the outside of the first guide air hood (17); the air guide duct (19) is communicated with the inside of the first guide air hood (17) and corresponds to the air outlet of the evaporator (4).

9. The active and passive heat conduction integrated system for containerized energy storage power station according to claim 8, characterized in that: The number of the second air guide covers (18) is four, and the four second air guide covers (18) are fixedly installed at equal distances on the top of the inner wall of the container body (10); the four second air guide covers (18) are connected to each other through air guide pipes (19) and are all connected to the inside of the first air guide cover (17).

10. The active and passive heat conduction integrated system for containerized energy storage power station according to claim 1, characterized in that: A first one-way solenoid valve (20) and a second one-way solenoid valve (21) are fixedly mounted in the middle of the liquid inlet pipe (6) and the liquid outlet pipe (7) respectively, and can control the on-off of the first one-way solenoid valve (20) to control the liquid in the pipeline at the outlet end of the condenser (2) to flow in one direction into the liquid storage tank (5) through the liquid inlet pipe (6), and the second one-way solenoid valve (21) can control the liquid in the liquid storage tank (5) to flow in one direction into the pipeline at the outlet end of the condenser (2) through the liquid outlet pipe (7).

Citation Information

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