Compressor energy storage heat management system

Abstract

The utility model relates to the technical field of compressed air energy storage, and discloses a compressor energy storage heat management system which comprises a compressor unit. The first heat exchanger is provided with an air medium channel and a heat exchange medium channel, a temperature detection device is arranged at an inlet and / or an outlet of the air medium channel, and the outlet of the air medium channel is connected with an air inlet of the compressor unit; and the multiple heat exchange medium pipelines are connected with inlets of the heat exchange medium channels of the first heat exchanger correspondingly, and heat exchange media with different temperatures circulate in the multiple heat exchange medium pipelines correspondingly. According to the compressor energy storage heat management system, the temperature detection device can monitor the temperature of air entering and flowing out of the first heat exchanger and heat exchange media with different temperatures in the multiple heat exchange medium pipelines in real time, and the temperature of the heat exchange media entering the first heat exchanger can be flexibly adjusted according to data fed back by the temperature detection device; and precise temperature adjustment is carried out on air entering the compressor unit.

Description

TECHNICAL FIELD

[0001] The utility model relates to compressed air energy storage technology field, concretely relates to a compressor heat management system. BACKGROUND

[0002] At the moment of the rapid development of compressed air energy storage technology, as the core equipment, the operation efficiency and stability of the compressor play a decisive role in the whole energy storage system. The temperature of the inlet air of the compressor is a key factor affecting its performance, and accurate control of the inlet air temperature has become an important problem to be solved in this field.

[0003] At present, some existing heat management measures have many deficiencies in dealing with the problem of compressor inlet air temperature control. Some simple air cooling or heating devices can only achieve relatively extensive temperature regulation and cannot accurately regulate and control according to the real-time changing inlet air temperature and the actual operation condition of the compressor. The traditional temperature control system lacks flexibility because it does not fully consider the complex and changeable environmental factors and the dynamic changing operation characteristics of the compressor. In the face of different situations of inlet gas temperature, it is difficult to adjust the temperature regulation strategy, and it cannot meet the strict requirements of temperature accurate control in actual application scenarios. UTILITARIAN CONTENT

[0004] Therefore, the utility model provides a kind of compressor heat management system to solve the problem of single compressor inlet temperature regulation mode in prior art.

[0005] The utility model provides a kind of compressor energy storage heat management system, comprising: compressor unit;First heat exchanger, the first heat exchanger has air medium channel and heat exchange medium channel, the inlet and / or outlet of air medium channel is provided with temperature detection device, the outlet of air medium channel is connected with the air inlet of compressor unit;Multiple heat exchange medium pipelines are connected with the inlet of heat exchange medium channel of first heat exchanger respectively, and multiple heat exchange medium pipelines are used to flow different temperature heat exchange medium respectively;First heat exchange medium return pipeline is connected with the outlet of heat exchange medium channel of first heat exchanger.

[0006] Through the above arrangement, the temperature detection device can monitor the air temperature entering and flowing out of the first heat exchanger in real time, providing data support for precise regulation. The different temperatures of the heat exchange medium in the multiple heat exchange medium pipelines can control the temperature of the heat exchange medium entering the first heat exchanger according to the data feedback by the temperature detection device, and the heat exchange medium flows out from the first heat exchange medium return pipeline after completing heat exchange with the air to be compressed. When the air temperature is detected to be too high, low-temperature heat exchange medium can be introduced for cooling; when the air temperature is too low, high-temperature heat exchange medium can be introduced for heating. The air entering the compressor set is precisely regulated according to the real-time change of the inlet air temperature. Moreover, this regulation mode fully considers various changes of the inlet air temperature during actual operation of the compressor, overcomes the defects of the traditional simple cooling or heating device that can only be coarsely regulated, and is no longer limited to a single temperature regulation mode. Through flexible use of multiple heat exchange media, corresponding regulation strategies can be accurately matched according to different states of the inlet gas temperature, effectively solving the problem of single regulation mode of the compressor inlet temperature in the prior art, improving the stability and efficiency of the compressor energy storage system operation, and providing a strong guarantee for efficient operation of the entire compressed air energy storage system.

[0007] Optionally, the multiple heat exchange medium pipelines include a first heat exchange medium pipeline and a second heat exchange medium pipeline, the first heat exchange medium pipeline is used to be connected with the cooling liquid; the air outlet of the compressor set is provided with a second heat exchanger, the inlet of the heat exchange medium passage of the second heat exchanger is connected with the first heat exchange medium pipeline through a first branch pipeline, the outlet of the heat exchange medium passage of the second heat exchanger is connected with the second heat exchange medium pipeline, and the second heat exchange medium pipeline is further connected with a second heat exchange medium return pipeline before the inlet of the heat exchange medium passage leading to the first heat exchanger.

[0008] By the above arrangement, the first heat exchange medium pipeline is connected with the cooling liquid, which can continuously provide the system with heat exchange medium with stable low temperature. When the compressor set is running, high-temperature compressed gas is discharged from the gas outlet. Since the inlet of the heat exchange medium channel of the second heat exchanger is connected with the first heat exchange medium pipeline through the first branch pipeline, the low-temperature heat exchange medium can smoothly flow into the second heat exchanger. The high-temperature compressed gas is in full contact with the low-temperature heat exchange medium to exchange heat. This heat exchange process effectively reduces the temperature of the compressed gas, avoids damage to subsequent equipment caused by high-temperature gas, and ensures the stable operation of the entire compressed air energy storage system. After heat exchange, the heat exchange medium that has absorbed the heat of the compressed gas flows from the outlet of the heat exchange medium channel of the second heat exchanger into the second heat exchange medium pipeline. These heat exchange media carrying heat can preheat the gas with lower temperature that is about to enter the compressor in the first heat exchanger, which greatly improves the comprehensive utilization rate of energy and reduces the energy consumption of the entire system. The second heat exchange medium return pipeline is connected before the inlet of the heat exchange medium channel of the first heat exchanger, so that when the second heat exchange medium is not needed in the first heat exchanger, the heat of the second heat exchange medium can be utilized by other devices.

[0009] Optionally, the second heat exchange medium return pipeline is provided with a heat application system, which includes application heat exchangers, the number of application heat exchangers, the application water channel inlet of the application heat exchanger is connected with the application water supply pipe, and the application water channel outlet of the application heat exchanger is connected with the application return water pipe.

[0010] By the above arrangement, the application heat exchange system can recover and utilize the heat of the heat exchange medium carrying heat in the second heat exchange medium return pipeline. During the operation of the compressor set, the second heat exchange medium flows out of the outlet of the heat exchange medium channel of the second heat exchanger and enters the second heat exchange medium return pipeline, having absorbed a large amount of heat of the compressed gas. The application heat exchange system can transfer the heat to other media or systems that need heat energy, improving the comprehensive energy utilization rate of the compressor energy storage thermal management system.

[0011] Optionally, the heat application system can further include a heat-driven refrigeration unit, the outlet of the heat-driven refrigeration unit is connected with the inlet of the heat exchange medium channel of the first heat exchanger through a third heat exchange medium pipeline, and the inlet of the heat-driven refrigeration unit is connected with the first heat exchange medium return pipeline through a second branch pipeline.

[0012] Through the above arrangement, the heat-driven refrigeration unit is connected to the first heat exchange medium return pipeline, so that the unit can use the residual heat carried by the first heat exchange medium when it returns as driving force. After the first heat exchange medium completes cooling of the compressor unit related components, it still contains a certain amount of heat, and direct discharge will cause energy waste. In this system, the heat-driven refrigeration unit converts this part of the residual heat into a power source for refrigeration, and achieves refrigeration cycle by absorbing heat to produce low-temperature third heat exchange medium. It reduces the dependence on traditional electric refrigeration, reduces the overall energy consumption of the system, and also makes the residual heat get secondary utilization, improving the comprehensive energy utilization efficiency.

[0013] Optionally, the compressor unit comprises a plurality of compressors arranged in series, and the air outlet of each compressor is provided with the second heat exchanger.

[0014] Through the above arrangement, the compressor unit adopts a plurality of compressors arranged in series, which can realize multi-stage compression of air, gradually increase the air pressure, and meet the demand for compressed air pressure under different working conditions. Compared with a single compressor, multi-stage compression can effectively reduce the compression ratio of each stage of compressor, reduce the heat generated in the compression process, improve the compression efficiency, and reduce the energy consumption. The air outlet of each compressor is respectively provided with a second heat exchanger, which can cool the high-temperature gas generated after each stage of compression in time.

[0015] Optionally, the inlet of the heat exchange medium channel of the first heat exchanger is provided with an electric three-way regulating valve, and the first heat exchange medium pipeline and the second heat exchange medium pipeline are respectively connected with the electric three-way regulating valve.

[0016] Through the above arrangement, the installation of the electric three-way regulating valve provides high flexibility and accuracy for the heat exchange medium regulation of the first heat exchanger. Since the first heat exchange medium pipeline and the second heat exchange medium pipeline are respectively connected with the electric three-way regulating valve, and the heat exchange media in the two pipelines have different temperature characteristics. When the first heat exchanger needs to regulate the temperature of the air entering the compressor unit, the electric three-way regulating valve can accurately control the flow ratio of the heat exchange media from the first heat exchange medium pipeline and the second heat exchange medium pipeline according to the real-time temperature data fed back by the temperature detection device at the inlet and / or outlet of the air medium channel.

[0017] Optionally, the air outlet of the compressor unit is further provided with a third heat exchanger, the third heat exchanger is connected in series downstream of the second heat exchanger, the inlet of the heat exchange medium channel of the second heat exchanger is connected with the outlet of the heat exchange medium channel of the third heat exchanger, and the inlet of the heat exchange medium channel of the third heat exchanger is connected with the first heat exchange medium pipeline through the first branch pipeline.

[0018] Through the above setting, the third heat exchanger is connected in series downstream of the second heat exchanger at the outlet of the compressor, a two-stage cooling system is constructed, and the cooling effect of the high-temperature gas after compression is greatly enhanced. The first branch pipeline connects the first heat exchange medium pipeline with the heat exchange medium channel inlet of the third heat exchanger, so that the low-temperature cooling liquid can enter the third heat exchanger. After the high-temperature compressed gas is discharged from the outlet of the compressor, it first enters the third heat exchanger, where it is subjected to the first heat exchange with the low-temperature cooling liquid, and the temperature of the gas is preliminarily reduced. Then, the gas enters the second heat exchanger, and at this time, the heat exchange medium entering the second heat exchanger is the cooling liquid that has absorbed part of the heat in the third heat exchanger. Since the cooling liquid has absorbed a certain amount of heat in the third heat exchanger, its temperature has risen, but it still has the ability to continue to absorb heat, so it can further cool the gas in the second heat exchanger. This two-stage cooling method enables the compressed gas to undergo a more sufficient and efficient cooling process.

[0019] Optionally, a guarantee heat exchanger is connected to the second heat exchange medium return pipeline, a cooling water channel inlet of the guarantee heat exchanger is connected to the cooling water supply pipe, and a cooling water channel outlet of the guarantee heat exchanger is connected to the cooling water return pipe.

[0020] Through the above setting, the guarantee heat exchanger of the temperature guarantee device is connected to the cooling water supply pipe and the cooling water return pipe through the cooling water channel. The heat exchange medium flowing out of the waste heat recovery device may not meet the system requirements in terms of temperature. The guarantee heat exchanger uses cooling water to further cool or regulate the temperature of the heat exchange medium, so that the temperature of the heat exchange medium is stabilized within a suitable range.

[0021] Optionally, it further comprises a lubricating oil cooler for cooling the lubricating oil of the compressor set, a cooling medium channel inlet of the lubricating oil cooler is connected to the first heat exchange medium pipeline, and a cooling medium channel outlet of the lubricating oil cooler is connected to the second heat exchange medium return pipeline upstream of the guarantee heat exchanger.

[0022] Through the above setting, the lubricating oil cooler is connected to the first heat exchange medium pipeline and the second heat exchange medium pipeline, providing an effective way for the lubricating oil cooling of the compressor set. During the operation of the compressor set, a large amount of heat is generated due to friction and other factors, and the high oil temperature can affect the performance and service life of the lubricating oil, and even affect the normal operation of the compressor set. The low-temperature heat exchange medium flows into the lubricating oil cooler from the first heat exchange medium pipeline, and exchanges heat with the high-temperature lubricating oil to reduce the temperature of the lubricating oil.

[0023] Optionally, a first storage tank is connected upstream of the first heat exchange medium pipeline, and the first heat exchange medium return pipeline is connected to the inlet of the first storage tank.

[0024] Through the above setting, the first storage tank continuously and stably supplies the heat exchange medium for the first heat exchange medium pipeline, so that there is sufficient storage of the first heat exchange medium under various operating conditions of the compressor set, and heat exchange interruption or efficiency reduction caused by insufficient medium is avoided. The first heat exchange medium return pipeline is connected with the inlet of the first storage tank, so that the heat exchange medium after completing the heat exchange task can return to the storage tank in an orderly manner. In the storage tank, the heat exchange medium can be temporarily stored and buffered to prepare for the next cycle. The circulation path of the heat exchange medium is optimized, and the ability of the system to respond to unexpected situations is also enhanced. When a component in the system needs maintenance due to a temporary fault, the heat exchange medium reserve in the first storage tank can maintain the system to continue operating for a certain period of time, reduce downtime, and greatly improve the stability and reliability of the entire compressor energy storage heat management system. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0026] Figure 1 A schematic view of one specific embodiment of the compressor heat management system provided in the embodiments of the present application.

[0027] BRIEF DESCRIPTION OF DRAWINGS

[0028] 1, first heat exchanger; 2, temperature detection device; 3, first heat exchange medium pipeline; 4, second heat exchange medium pipeline; 5, second heat exchanger; 6, first branch pipeline; 7, compressor; 8, electric three-way valve; 9, third heat exchanger; 10, first pumping device; 11, first storage tank; 12, application heat exchanger; 13, application water supply pipe; 14, application return pipe; 15, guarantee heat exchanger; 16, cooling water supply pipe; 17, cooling water return pipe; 18, lubricating oil cooler; 19, third heat exchange medium pipeline; 20, first heat exchange medium return pipeline; 21, second branch pipeline; 22, heat-driven refrigeration unit; 23, second pumping device; 24, second storage tank; 25, second heat exchange medium return pipeline. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0030] The embodiments of the utility model will be described below in conjunction with Figure 1 .

[0031] As Figure 1 indicated, a specific implementation of the compressor heat management system provided by the embodiment includes: a compressor unit, a first heat exchanger 1 and a plurality of heat exchange medium pipelines.

[0032] Specifically, the first heat exchanger 1 has an air medium passage and a heat exchange medium passage, the inlet and / or outlet of the air medium passage is provided with a temperature detection device 2, the outlet of the air medium passage is connected with the air inlet of the compressor unit; a plurality of heat exchange medium pipelines are respectively connected with the inlets of the heat exchange medium passages of the first heat exchanger 1, different temperature heat exchange media flow through the plurality of heat exchange medium pipelines respectively; a first heat exchange medium return pipeline 20 is connected with the outlet of the heat exchange medium passage of the first heat exchanger 1.

[0033] In the embodiment, the inlets and outlets of the air medium of the first heat exchanger 1 are both provided with the temperature detection device 2, which can monitor the air temperature entering and flowing out of the first heat exchanger 1 in real time, and provide data basis for accurate regulation and control. Different temperature heat exchange media flow through the plurality of heat exchange medium pipelines respectively, and the system can flexibly select the heat exchange medium with appropriate temperature to enter the heat exchange medium passage of the first heat exchanger 1 according to the data fed back by the temperature detection device 2. When the air temperature is too high, low-temperature heat exchange medium is introduced for cooling; when the air temperature is too low, high-temperature heat exchange medium is introduced for heating. The system can accurately regulate the temperature of the air entering the compressor unit according to the real-time change of the air inlet temperature, and the heat exchange medium after heat exchange flows into the first heat exchange medium return pipeline 20 from the outlet of the heat exchange medium passage of the first heat exchanger 1. This adjustment mode fully considers various changes of the air inlet temperature when the compressor 7 is actually running, overcomes the defects that the traditional simple cooling or heating device can only carry out extensive adjustment, and is no longer limited to a single temperature adjustment mode. By flexibly using a plurality of heat exchange media, corresponding adjustment strategies can be accurately matched for different temperature states of the inlet gas, effectively solving the problem that the inlet temperature adjustment mode of the compressor 7 in the prior art is relatively single, and improving the stability and efficiency of the energy storage system of the compressor 7, which provides a strong guarantee for the efficient operation of the entire compressed air energy storage system.

[0034] As Figure 1 shown, a specific embodiment of the compressor thermal management system provided in the present embodiment includes a plurality of heat exchange medium pipelines, including a first heat exchange medium pipeline 3 and a second heat exchange medium pipeline 4.

[0035] Specifically, the first heat exchange medium pipeline 3 is used to connect with a cooling liquid source; the gas outlet of the compressor set is provided with a second heat exchanger 5, the inlet of the heat exchange medium passage of the second heat exchanger 5 is connected with the first heat exchange medium pipeline 3 through a first branch pipeline 6, and the outlet of the heat exchange medium passage of the second heat exchanger 5 is connected with the second heat exchange medium pipeline 4, which is further connected with a second heat exchange medium return pipeline 25 before the inlet of the heat exchange medium passage of the first heat exchanger 1.

[0036] Further, the cooling liquid generally has a relatively constant temperature, which can provide a reliable cold source basis for the entire heat exchange process. Through the first branch pipeline 6, the low-temperature cooling liquid from the first heat exchange medium pipeline 3 is introduced into the heat exchange medium passage of the second heat exchanger 5. Inside the second heat exchanger 5, the high-temperature compressed gas exchanges heat with the low-temperature cooling liquid. The heat is transferred from the high-temperature compressed gas to the low-temperature cooling liquid, so that the temperature of the compressed gas is rapidly reduced, effectively ensuring that the compressed gas enters the subsequent process in a suitable temperature range. The second heat exchange medium pipeline 4 is further connected with the second heat exchange medium return pipeline 25 before the inlet of the heat exchange medium passage of the first heat exchanger 1, and the second heat exchange medium return passage can guide the cooling liquid that does not flow into the first heat exchanger 1 into the subsequent heat recovery device and the next heat cycle, ensuring the overall energy utilization efficiency of the thermal management system.

[0037] As Figure 1 shown, a specific embodiment of the compressor thermal management system provided in the present embodiment includes a plurality of heat exchange medium pipelines, including a first heat exchange medium pipeline 3 and a second heat exchange medium pipeline 4.

[0038] Specifically, the application heat exchange system effectively recovers and utilizes the heat in the cooling liquid, and is internally provided with a plurality of efficient heat exchange structures. When the heat-carrying heat exchange medium flows through the application heat exchange system, the device will transfer the heat in the heat exchange medium to other media or systems that need heat energy, significantly improving the energy utilization efficiency of the entire system and reducing energy consumption and operating costs.

[0039] As Figure 1As shown, the application heat exchange system includes a heat-driven refrigeration unit 22, the outlet of the heat-driven refrigeration unit 22 is connected with the inlet of the heat exchange medium passage of the first heat exchanger 1 through a third heat exchange medium pipeline 19, and the inlet of the heat-driven refrigeration unit 22 is connected with the first heat exchange medium return pipeline 20 through a second branch pipeline 21.

[0040] Specifically, the heat-driven refrigeration unit 22 utilizes the heat energy in the cooling liquid after heat exchange as driving force to realize refrigeration function, and is connected with the second heat exchange medium pipeline 4, so that the waste heat carried by the cooling liquid in the second heat exchange medium pipeline 4 can be fully utilized to convert the waste heat into a power source for refrigeration, and low-temperature cooling liquid is prepared. When the temperature of the gas in the first heat exchanger 1 is too high, the low-temperature cooling liquid can enter the first heat exchanger 1 through the third heat exchange medium pipeline 19 connected with the first heat exchanger 1 to cool the air to meet the processing temperature requirement of the compressor unit.

[0041] Further, the first heat exchange medium return pipeline 20 is connected with the heat-driven refrigeration unit 22 through the second branch pipeline 21, and the cooling liquid returns to the refrigeration unit through the second branch pipeline 21. The third heat exchange medium is connected with a second pumping device 23, and the inlet of the second pumping device 23 is connected with a second storage tank 24. When the system needs to cool the air entering the compressor unit, the second pumping device 23 delivers the low-temperature cooling liquid stored in the second storage tank 24 to the first heat exchanger 1.

[0042] Further, the application heat exchange system also includes an application heat exchanger 12, the inlet of the application water passage of the application heat exchanger 12 is connected with an application water supply pipeline 13, and the outlet of the application water passage of the application heat exchanger 12 is connected with an application water return pipeline 14. The application water supply pipeline 13 continuously delivers application water to the application water passage of the application heat exchanger 12, and the cooling liquid carrying the waste heat of the compressor unit exchanges heat with the application water when flowing through the application heat exchanger 12. The heat is transferred from the cooling liquid to the application water, and the warmed application water flows out through the application water return pipeline 14 and can be used in various scenarios.

[0043] As shown, the application heat exchange system includes a heat-driven refrigeration unit 22, the outlet of the heat-driven refrigeration unit 22 is connected with the inlet of the heat exchange medium passage of the first heat exchanger 1 through a third heat exchange medium pipeline 19, and the inlet of the heat-driven refrigeration unit 22 is connected with the first heat exchange medium return pipeline 20 through a second branch pipeline 21. Figure 1 As shown, the application heat exchange system includes a heat-driven refrigeration unit 22, the outlet of the heat-driven refrigeration unit 22 is connected with the inlet of the heat exchange medium passage of the first heat exchanger 1 through a third heat exchange medium pipeline 19, and the inlet of the heat-driven refrigeration unit 22 is connected with the first heat exchange medium return pipeline 20 through a second branch pipeline 21.

[0044] Specifically, three compressors 7 are arranged in series to realize multi-stage compression of air, and each compressor 7 gradually increases the air pressure, so that the finally output compressed air meets the working condition of higher pressure requirement. The second heat exchanger 5 is arranged at the air outlet of each compressor 7, which can cool the high-temperature compressed air in time, ensure that the air temperature entering the next stage compressor 7 is appropriate, avoid the decrease of compressor 7 efficiency and the increase of energy consumption due to the too high air temperature, and even avoid the damage of equipment, so as to ensure the stable and efficient operation of the whole compressor unit.

[0045] As shown in Figure 1 , a specific implementation of the compressor thermal management system provided in the embodiment, the inlet of the heat exchange medium channel of the first heat exchanger 1 is provided with an electric three-way regulating valve 8, and the first heat exchange medium pipeline 3 and the second heat exchange medium pipeline 4 are connected with the electric three-way regulating valve 8 respectively.

[0046] Specifically, when the first heat exchanger 1 needs to adjust the temperature of the air entering the compressor unit, the electric three-way regulating valve 8 will respond quickly according to the real-time temperature data fed back by the temperature detection device 2 at the inlet and outlet of the air medium channel. If it is detected that the temperature of the air entering the first heat exchanger 1 is too high, it will automatically increase the flow of low-temperature heat exchange medium from the first heat exchange medium pipeline 3, and at the same time reduce the flow of high-temperature heat exchange medium from the second heat exchange medium pipeline 4, so that the low-temperature heat exchange medium can fully play the cooling effect, and the air temperature can be quickly reduced to the appropriate range. On the contrary, when the air temperature is too low, the electric three-way regulating valve 8 will adjust the flow ratio and increase the inflow of high-temperature heat exchange medium in the second heat exchange medium pipeline 4 to heat the air.

[0047] As shown in Figure 1 , a specific implementation of the compressor thermal management system provided in the embodiment, the air outlet of the compressor unit is further provided with a third heat exchanger 9.

[0048] Specifically, the third heat exchanger 9 is connected in series downstream of the second heat exchanger 5, and the high-temperature gas first passes through the second heat exchanger 5 and then passes through the third heat exchanger 9. The inlet of the heat exchange medium channel of the second heat exchanger 5 is connected with the outlet of the heat exchange medium channel of the third heat exchanger 9, and the inlet of the heat exchange medium channel of the third heat exchanger 9 is connected with the first heat exchange medium pipeline 3 through the first branch pipeline 6.

[0049] Further, the cooling liquid from the first branch of the first heat exchange medium pipeline 3 enters the third heat exchanger 9 to cool the gas that has been exchanged heat by the second heat exchanger 5, and the cooling liquid fully absorbs part of the heat of the high-temperature gas, and its temperature rises, but still has strong heat absorption capacity. Subsequently, the cooling liquid that has absorbed a certain amount of heat flows out from the heat exchange medium passage outlet of the third heat exchanger 9 and enters the heat exchange medium passage of the second heat exchanger 5. In the second heat exchanger 5, it continues to exchange heat with the high-temperature gas, and further reduces the temperature of the gas.

[0050] As shown in FIG. 1, the compressor 7 heat management system provided in the embodiment includes a first heat exchange medium pipeline 3, a second heat exchange medium pipeline 20, a first heat exchanger 4, a second heat exchanger 5, a third heat exchanger 9, a first storage tank 11, a second storage tank 12, a first heat exchange medium pump 13, a second heat exchange medium pump 14, a safeguard heat exchanger 15, a cooling water supply pipe 16, a cooling water return pipe 17, a lubricating oil cooler 18, and a lubricating oil pump 19. Figure 1 As shown in FIG. 1, the compressor 7 heat management system provided in the embodiment includes a first heat exchange medium pipeline 3, a second heat exchange medium pipeline 20, a first heat exchanger 4, a second heat exchanger 5, a third heat exchanger 9, a first storage tank 11, a second storage tank 12, a first heat exchange medium pump 13, a second heat exchange medium pump 14, a safeguard heat exchanger 15, a cooling water supply pipe 16, a cooling water return pipe 17, a lubricating oil cooler 18, and a lubricating oil pump 19.

[0051] Specifically, the temperature safeguard device is the safeguard heat exchanger 15, and the cooling water supply pipe 16 provides low-temperature cooling water for the cooling water passage of the safeguard heat exchanger 15. The temperature of the cooling liquid flowing out from the waste heat recovery device can still not reach the stable range required by the system, at which time the cooling liquid and the cooling water exchange heat in the safeguard heat exchanger 15. By accurately controlling the flow and temperature of the cooling water, the temperature of the cooling liquid can be accurately adjusted to a suitable value, and the temperature of the cooling liquid flowing into the first storage tank 11 is stable.

[0052] As shown in FIG. 1, the compressor 7 heat management system provided in the embodiment includes a first heat exchange medium pipeline 3, a second heat exchange medium pipeline 20, a first heat exchanger 4, a second heat exchanger 5, a third heat exchanger 9, a first storage tank 11, a second storage tank 12, a first heat exchange medium pump 13, a second heat exchange medium pump 14, a safeguard heat exchanger 15, a cooling water supply pipe 16, a cooling water return pipe 17, a lubricating oil cooler 18, and a lubricating oil pump 19. Figure 1 As shown in FIG. 1, the compressor 7 heat management system provided in the embodiment includes a first heat exchange medium pipeline 3, a second heat exchange medium pipeline 20, a first heat exchanger 4, a second heat exchanger 5, a third heat exchanger 9, a first storage tank 11, a second storage tank 12, a first heat exchange medium pump 13, a second heat exchange medium pump 14, a safeguard heat exchanger 15, a cooling water supply pipe 16, a cooling water return pipe 17, a lubricating oil cooler 18, and a lubricating oil pump 19.

[0053] Specifically, the lubricating oil cooler 18 is used to cool the lubricating oil of the compressor set, the cooling medium passage inlet of the lubricating oil cooler 18 is connected with the first heat exchange medium pipeline 3, and the cooling medium passage outlet of the lubricating oil cooler 18 is connected with the second heat exchange medium return pipeline 25 upstream of the safeguard heat exchanger 15.

[0054] As shown in FIG. 1, the compressor 7 heat management system provided in the embodiment includes a first heat exchange medium pipeline 3, a second heat exchange medium pipeline 20, a first heat exchanger 4, a second heat exchanger 5, a third heat exchanger 9, a first storage tank 11, a second storage tank 12, a first heat exchange medium pump 13, a second heat exchange medium pump 14, a safeguard heat exchanger 15, a cooling water supply pipe 16, a cooling water return pipe 17, a lubricating oil cooler 18, and a lubricating oil pump 19. Figure 1 As shown in FIG. 1, the compressor 7 heat management system provided in the embodiment includes a first heat exchange medium pipeline 3, a second heat exchange medium pipeline 20, a first heat exchanger 4, a second heat exchanger 5, a third heat exchanger 9, a first storage tank 11, a second storage tank 12, a first heat exchange medium pump 13, a second heat exchange medium pump 14, a safeguard heat exchanger 15, a cooling water supply pipe 16, a cooling water return pipe 17, a lubricating oil cooler 18, and a lubricating oil pump 19.

[0055] Specifically, the first storage tank 11 provides stable medium supply for the first heat exchange medium pipeline 3. During the operation of the compressor 7 thermal management system, the working condition is complex and variable, and the demand for heat exchange medium is also changing at any time. The first storage tank 11 ensures that the first heat exchange medium pipeline 3 will not affect the heat exchange efficiency due to medium shortage in any case. At the same time, the connection of the first heat exchange medium return pipeline 20 and the inlet of the first storage tank 11 forms a complete and efficient heat exchange medium circulation loop. After completing the heat exchange task, the first heat exchange medium returns to the first storage tank 11 in an orderly manner through the return pipeline, preparing for the next heat exchange, improving the stability and reliability of the system, and ensuring the efficient and continuous operation of the compressor 7 thermal management system.

[0056] Working principle:

[0057] The first heat exchanger 1 plays an important role before the air enters the compressor unit. The first heat exchanger 1 has an air medium channel and a heat exchange medium channel, and the inlet and outlet of the air medium channel are provided with temperature detection devices 2. The inlet of the heat exchange medium channel of the first heat exchanger 1 is provided with an electric three-way regulating valve 8, and the first heat exchange medium pipeline 3 and the second heat exchange medium pipeline 4 are connected thereto. The system can flexibly select different temperature heat exchange media into the first heat exchanger 1 through the electric three-way regulating valve 8 according to the air temperature feedback by the temperature detection device 2, to accurately adjust the temperature of the air entering the compressor unit.

[0058] When multiple compressors 7 are connected in series, the high-temperature gas discharged from the gas outlet is sequentially cooled by the second heat exchanger 5 and the third heat exchanger 9. The first heat exchange medium pipeline 3 is connected to the cooling liquid, and the first pumping device 10 draws the cooling liquid from the first storage tank 11 and sends it into the third heat exchanger 9 and the second heat exchanger 5 for heat exchange.

[0059] The heat-driven refrigeration unit 22 in the heat application system is connected with the second heat exchange medium pipeline 4, and uses the waste heat of the cooling liquid for refrigeration. The third heat exchange medium pipeline 19 is connected with the second pumping device 23, and the inlet of the second pumping device 23 is connected with the second storage tank 24, which can deliver the low-temperature cooling liquid in the second storage tank 24 to the first heat exchanger 1, providing additional cooling capacity for the system, ensuring stable operation of the compressor unit, and significantly improving energy utilization efficiency. It should be noted that when the third heat exchange medium pipeline 19 supplies low-temperature cooling liquid to the first heat exchanger 1, the valves of the first heat exchange medium pipeline 3 and the second heat exchange medium pipeline 4 leading to the first heat exchanger 1 can be closed; or the valve of the first heat exchange medium pipeline 3 leading to the first heat exchanger 1 can be not completely closed, so that the low-temperature cooling liquid in the third heat exchange medium pipeline 19 mixes with the cooling liquid in the first heat exchange medium pipeline 3 and is delivered to the first heat exchanger 1 together.

[0060] In addition, the cooling liquid carrying heat after heat exchange flows back through the heat exchange medium pipeline, passes through the application heat exchanger 12, the application water flows into the application heat exchanger 12 from the application water supply pipeline 13, absorbs the heat of the cooling liquid and then flows out from the application return water pipeline 14, so as to realize waste heat utilization. Then, the cooling liquid passes through the temperature guarantee device (guarantee heat exchanger 15), the cooling water flows into the guarantee heat exchanger 15 from the cooling water supply pipeline 16 to adjust the temperature of the cooling liquid, and then the cooling liquid returns to the first storage tank 11. The lubricating oil cooler 18 cools the lubricating oil of the compressor unit by using the cooling liquid of the first heat exchange medium pipeline 3, and the cooling liquid after absorbing heat flows into the second heat exchange medium pipeline 4 between the waste heat recovery device and the temperature guarantee device.

[0061] Although the embodiments of the present application are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope of the present application.

Claims

1. A compressor energy storage thermal management system, characterized by, The application relates to a compressor unit, a first heat exchanger (1) with an air medium channel and a heat medium channel, the inlet and / or outlet of the air medium channel being provided with a temperature detection device (2), the outlet of the air medium channel being connected with the air inlet of the compressor unit, a plurality of heat medium pipes connected with the inlet of the heat medium channel of the first heat exchanger (1) respectively, the heat medium pipes being used for circulating heat medium with different temperatures respectively, a first heat medium return pipe (20) connected with the outlet of the heat medium channel of the first heat exchanger (1). The plurality of heat medium pipes include a first heat medium pipe (3) and a second heat medium pipe (4), the first heat medium pipe (3) being used for being connected with cooling liquid. The outlet of the compressor unit is provided with a second heat exchanger (5), the inlet of the heat medium channel of the second heat exchanger (5) being connected with the first heat medium pipe (3) through a first branch pipe (6), the outlet of the heat medium channel of the second heat exchanger (5) being connected with the second heat medium pipe (4), and the second heat medium pipe (4) being further connected with a second heat medium return pipe (25) before the inlet of the heat medium channel of the first heat exchanger (1). The second heat medium return pipe (25) is provided with a heat application system, the heat application system including an application heat exchanger (12), the number of the application heat exchanger (12) being at least one, the inlet of the water channel of the application heat exchanger (12) being connected with an application water supply pipe (13), and the outlet of the water channel of the application heat exchanger (12) being connected with an application return water pipe (14). The heat application system further includes a heat-driven refrigeration unit (22), the outlet of the heat-driven refrigeration unit (22) being connected with the inlet of the heat medium channel of the first heat exchanger (1) through a third heat medium pipe (19), and the inlet of the heat-driven refrigeration unit (22) being connected with the first heat medium return pipe (20) through a second branch pipe (21).

2. The compressor energy storage thermal management system of claim 1, wherein, The compressor unit includes a plurality of compressors (7) arranged in series, the outlet of each compressor (7) being provided with the second heat exchanger (5) respectively. The inlet of the heat medium channel of the first heat exchanger (1) is provided with an electrically-driven three-way regulating valve (8), and the first heat medium pipe (3) and the second heat medium pipe (4) are connected with the electrically-driven three-way regulating valve (8) respectively.

3. The compressor energy storage thermal management system of claim 2, wherein, The outlet of the compressor unit is further provided with a third heat exchanger (9), the third heat exchanger (9) being arranged downstream of the second heat exchanger (5), the inlet of the heat medium channel of the second heat exchanger (5) being connected with the outlet of the heat medium channel of the third heat exchanger (9), and the inlet of the heat medium channel of the third heat exchanger (9) being connected with the first heat medium pipe (3) through the first branch pipe (6).

4. The compressor energy storage thermal management system of claim 3, wherein, ​ 5. The compressor energy storage thermal management system of claim 2, wherein, ​ 6. The compressor energy storage thermal management system of claim 2, wherein, ​ 7. The compressor energy storage thermal management system of claim 2, wherein, ​ 8. The compressor energy storage thermal management system of claim 2, wherein, The second heat exchange medium return pipeline (25) is connected with a safeguard heat exchanger (15), a cooling water passage inlet of the safeguard heat exchanger (15) is connected with a cooling water supply pipe (16), and a cooling water passage outlet of the safeguard heat exchanger (15) is connected with a cooling water return pipe (17).

9. The compressor energy storage thermal management system of claim 8, wherein, Further comprising: a lubricating oil cooler (18) for cooling lubricating oil of the compressor unit, a cooling medium passage inlet of the lubricating oil cooler (18) is connected with the first heat exchange medium pipeline (3), and a cooling medium passage outlet of the lubricating oil cooler (18) is connected with the second heat exchange medium return pipeline (25) upstream of the safeguard heat exchanger (15).

10. The compressor energy storage thermal management system of any one of claims 1-9, wherein, A first storage tank (11) is connected upstream of the first heat exchange medium pipeline (3), and the first heat exchange medium return pipeline (20) is connected with an inlet of the first storage tank (11). The second heat exchange medium return pipeline (25) is connected with a safeguard heat exchanger (15), a cooling water passage inlet of the safeguard heat exchanger (15) is connected with a cooling water supply pipe (16), and a cooling water passage outlet of the safeguard heat exchanger (15) is connected with a cooling water return pipe (17).

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