Air energy storage heat exchange module performance test system

Abstract

This invention discloses a performance testing system for an air energy storage heat exchange module, comprising a saturated humidification / salting subsystem, a cooling fluid subsystem, a heat storage fluid subsystem, a DCS control subsystem, and a second heat storage fluid subsystem. Stable high-pressure air, generated by a drive motor, air compressor, and high-pressure storage tank, enters the saturated humidification / salting subsystem for humidification / salting, then enters the second heater / first cooler for heating / cooling. Afterward, it enters the heat exchange device under test and exchanges heat with the hot fluids in the heat storage fluid subsystem and the second heat storage fluid subsystem. The cooling fluid subsystem provides a cold source for the first cooler. The high-pressure air after heat exchange passes through a third cooler and a silencer before being discharged into the atmosphere. This invention can conduct tests on the flow heat transfer performance and cycle stability of heat exchange devices under different operating parameters, and features high versatility, a wide operating range, good stability, and strong comprehensiveness.

Description

Technical Field

[0001] This invention relates to the field of heat exchange device performance testing technology, and specifically to an air energy storage heat exchange module performance testing system. Background Technology

[0002] Compressed air energy storage (CASS) is a novel physical energy storage technology characterized by large scale, high efficiency, long duration, and low cost. It achieves zero emissions and zero pollution, making it a highly promising large-scale energy storage technology. CASS technologies include adiabatic CASS, thermal storage CASS, liquid air CASS, supercritical CASS, and advanced CASS. CASS not only converts unstable and intermittent renewable energy into sustainable, high-quality energy for power generation, but also enhances the peak-shaving, frequency regulation, and renewable energy absorption capabilities of traditional power grid systems.

[0003] In recent years, the installed capacity of compressed air energy storage systems has gradually increased, and megawatt-level compressed air energy storage systems have entered the commercial application stage. As a key energy exchange device in compressed air energy storage systems, the performance of the heat exchanger directly affects the system's efficiency, economy, and reliability. Large-scale heat exchange equipment is large in scale and expensive, and its performance testing suffers from high testing costs, long cycles, and uncertain operating conditions, making it inconvenient to conduct multi-cycle energy storage / release stability experiments. Therefore, before equipment selection and finalization, it is necessary to conduct simulation experiments to comprehensively test and evaluate the performance of heat exchangers of the same type and manufacturer. In response, Chinese patent applications 201811023599.5 and 201821437680.3 disclose a thermal performance testing system, and Chinese patent application 201910623284.2 discloses a capillary hot column thermal performance testing system. While these three patent applications all focus on testing and evaluating the heat exchange performance of high-power, wide-temperature-range heat storage devices and large heat exchangers, they cannot realistically simulate the inlet and outlet temperatures, pressures, humidity, and salinity conditions of various heat exchange devices in compressed air energy storage systems during energy storage / release processes. Furthermore, the performance focus of heat exchangers differs under different operating conditions during heat exchanger performance testing. The service environment of heat exchange devices in compressed air energy storage systems is complex, with high requirements for inlet and outlet temperatures, pressure drop, flow rate, and internal resistance. Existing testing platforms cannot meet these requirements, posing significant challenges to the design and selection of heat exchange modules in compressed air energy storage systems. Therefore, there is an urgent need for a comprehensive testing platform that can efficiently, accurately, and comprehensively test heat exchanger performance. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned shortcomings and provide an air energy storage heat exchange module performance testing system that can conduct flow heat transfer performance and cycle stability testing of heat exchange equipment under different operating parameters, and has the characteristics of high versatility, wide operating range, good stability and strong comprehensiveness.

[0005] The objective of this invention and the solution to its main technical problem are achieved by the following technical solution:

[0006] The present invention provides a performance testing system for an air energy storage heat exchange module, comprising a saturated humidification / salt addition subsystem, a cooling fluid subsystem, a heat storage fluid subsystem, a DCS control subsystem, a drive motor, an air compressor, a high-pressure air tank, a second heater, a first cooler, a third cooler, and a silencer, wherein:

[0007] The saturated humidification / salt addition subsystem 1 includes a first heater, a separator, and a replenishment tank. A temperature sensor AT is installed on the pipeline connecting the outlet of the first heater to the gas-side inlet of the separator. A replenishment pump is installed on the pipeline connecting the replenishment tank to the liquid-side inlet of the separator. A temperature sensor BT and a heater are installed at the bottom of the separator. A drain valve C is installed on the liquid-side outlet pipeline of the separator. A separation device is installed at the top of the separator.

[0008] The cooling fluid subsystem includes a cooling tower, a chiller, a cryogenic pump A, and a cryogenic pump B. The pipeline connecting the cooling tower outlet to the liquid-side outlet of the first cooler is sequentially equipped with cryogenic pump A, control valve J, temperature sensor ET, and control valve L. The pipeline connecting the chiller outlet to the liquid-side outlet of the first cooler is equipped with cryogenic pump B, and the outlet pipeline of cryogenic pump B is equipped with control valve K. The pipeline connecting the outlet of control valve K to the cold fluid inlet of the second cooler is equipped with temperature sensor FT and control valve M. The cooling tower inlet pipeline is equipped with control valve H, and the chiller inlet pipeline is equipped with control valve I. The connecting pipeline between control valve H and control valve I is connected to the cold fluid outlet of the first cooler. The pipeline connecting the cold fluid outlet of the second cooler to the inlet of control valve I is equipped with control valve N.

[0009] The thermal storage fluid subsystem includes a hot tank, a cold tank, a water pump, a third heater, and a second cooler. The inlet pipe of the hot tank, equipped with control valve O, and the inlet pipe of the cold tank, equipped with control valve Q, are both connected to the hot fluid outlet of the second cooler. The outlet pipe of the hot tank, equipped with control valve P, and the outlet pipe of the cold tank, equipped with control valve R, are both connected to the inlet pipe of the water pump. The outlet pipe of the water pump is connected to the inlet of the third heater. A liquid flow sensor BF, a temperature sensor GT, a pressure sensor DP, and a control valve S are sequentially installed on the pipeline connecting the outlet pipe of the third heater to the inlet of the heat exchange device under test. A branch pipe is set before the inlet of control valve S and connected to the hot fluid inlet pipe of the second cooler. A control valve T and a control valve V are sequentially installed on this branch pipe. A temperature sensor HT, a pressure sensor EP, and a control valve U are sequentially installed on the pipeline connecting the outlet of the heat exchange device under test to the hot fluid inlet of the second cooler.

[0010] The air compressor inlet is connected to the atmosphere and the drive motor. A control valve A is installed on the pipeline connecting the air compressor to the high-pressure air tank. A control valve B is installed on the pipeline connecting the high-pressure air tank outlet to the first pressure regulating valve APV. A pressure sensor AP is installed on the pipeline connecting the first pressure regulating valve APV to the inlet of the first heater. The separator outlet is connected to the inlet of the second heater and the air-side inlet of the first cooler. A flow sensor AF, a humidity sensor AH, a temperature sensor CT, and a pressure sensor BP are installed on the pipeline connecting the outlet pipe of the second heater (with control valve F) and the combined air-side outlet pipe of the first cooler (with control valve G) to the air-side inlet of the heat exchanger under test. A humidity sensor BH, a temperature sensor DT, a pressure sensor CP, and a second pressure regulating valve BPV are installed sequentially on the pipeline connecting the air-side outlet of the heat exchanger under test to the inlet of the third cooler. The outlet of the third cooler is connected to the inlet of the silencer.

[0011] The DCS control subsystem includes a data measurement and acquisition module, a transmission module, a control module, and a data calculation and analysis module. The data measurement and acquisition module is connected to pressure sensors AP, BP, CP, DP, and EP; flow sensors AF and BF; humidity sensors AH and BH; and temperature sensors AT, BT, CT, DT, ET, FT, GT, and HT. It is connected to the control module through the transmission module. The control module is connected to control valves A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, the first pressure regulating valve APV, and the second pressure regulating valve. The control module is interconnected with the data calculation and analysis module.

[0012] The above-mentioned air energy storage heat exchange module performance testing system includes: a sprayer at the bottom of the separator in the saturated humidification / salt addition subsystem; a control valve W installed on the pipeline between the liquid-side outlet at the bottom of the separator and the inlet of the replenishment tank; a heater installed inside the replenishment tank; and a temperature sensor IT installed on the pipeline at the outlet of the replenishment tank. A salinity sensor AS is installed on the gas-side inlet pipeline of the heat exchange device under test, and a salinity sensor BS is installed on the gas-side outlet pipeline.

[0013] The aforementioned air energy storage heat exchange module performance testing system further includes a second heat storage fluid subsystem. This subsystem comprises a second hot tank, a second cold tank, a second water pump, a third heater, and a first heat storage cooler. The inlet pipe of the hot tank (equipped with control valve A) and the inlet pipe of the cold tank (equipped with control valve C) are both connected to the hot fluid outlet of the second heat storage cooler. The outlet pipe of the hot tank (equipped with control valve B) and the outlet pipe of the cold tank (equipped with control valve D) are both connected to the water pump inlet pipe. The water pump outlet pipe is connected to the inlet of the third heater. A liquid flow sensor CF, a temperature sensor JT, a pressure sensor FP, and a control valve E are sequentially installed on the pipeline connecting the outlet pipe of the third heater to the inlet of the heat exchange device under test. A branch pipe before the inlet of control valve E connects to the hot fluid inlet pipe of the second heat storage cooler, and control valves F and G are sequentially installed on this branch pipe. A temperature sensor KT, a pressure sensor GP, and a control valve H are sequentially installed on the pipeline connecting the outlet of the heat exchange device under test to the hot fluid inlet of the second heat storage cooler.

[0014] Compared with the prior art, this invention has significant advantages and beneficial effects. As can be seen from the above technical solution, the saturated humidification / saltification subsystem, cooling fluid subsystem, heat storage fluid subsystem, and DCS control subsystem of this invention are modularly set up. By utilizing the collaborative work between the subsystems, it can realistically simulate the temperature, pressure, humidity, and salinity of various heat exchange devices in the compressed air energy storage system during the energy storage / release process. It has the characteristics of high versatility, good scalability, wide operating range, good stability, and strong comprehensiveness, and can provide equipment testing support for heat exchange components in compressed air energy storage systems. This invention can accurately, comprehensively, and efficiently test the performance parameters of different types of heat exchangers under various operating conditions, including inlet and outlet temperatures, flow rates, pressures, humidity, and salinity. It provides basic measurement data for heat exchangers' heat exchange capacity, heat exchange rate, flow resistance, dehumidification, desalination performance, and separation performance. This invention can meet the requirements for testing and diagnosing the performance of heat exchangers under different operating conditions, such as low-temperature high-pressure gas / high-temperature liquid working fluid, high-temperature high-pressure gas / low-temperature liquid working fluid, and heat exchange between liquid working fluids. It provides experimental support for the research, design, selection, and performance verification of heat exchangers in compressed air energy storage systems. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of Example 1;

[0016] Figure 2 This is a schematic diagram of the DCS control subsystem of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of Example 2;

[0018] Figure 4 This is a schematic diagram of the structure of Example 3.

[0019] Markings in the image:

[0020] 1. Saturated Humidification / Salting Subsystem: 101. First Heater, 102. Separator, 102a. Bottom Heater of Separator, 102b. Top Separator of Separator, 103. Makeup Tank, 104. Makeup Pump; 2. Cooling Fluid Subsystem: 201. Cooling Tower, 202. Refrigerator, 203. Cryogenic Pump A, 204. Cryogenic Pump B; 3. Thermal Storage Fluid Subsystem: 301. Hot Tank, 302. Cold Tank, 303. Water Pump; 304. Third Heater, 305. Second Cooler; 4. DCS Control Subsystem: 401. Data Measurement and Acquisition Module, 402. Transmission Module, 403. Control Module, 404. Data Calculation and Analysis Module; 5. Drive Motor; 6. Air Compressor; 7. High-Pressure Gas Storage. 8. Second Heater, 9. First Cooler, 10. Third Cooler, 11. Silencer, 12. Second Thermal Storage Fluid Subsystem, 1201. Second Hot Tank, 1202. Second Cold Tank, 1203. Second Water Pump, 1204. Third Heater, 1205. Second Thermal Storage Cooler, 13. Heat Exchanger to be Tested, 14. Control Valve A, 15. Control Valve B, 16. Control Valve C, 17. Control Valve D, 18. Control Valve E, 19. Control Valve F, 20. Control Valve G, 21. Control Valve H, 22. Control Valve I, 23. Control Valve J, 24. Control Valve K, 25. Control Valve L, 26. Control Valve M, 27. Control Valve N, 28. Control Valve O 29. Control valve P, 30. Control valve Q, 31. Control valve R, 32. Control valve S, 33. Control valve T, 34. Control valve U, 35. Control valve V, 36. Control valve W, 37. First pressure regulating valve APV, 38. Second pressure regulating valve BPV, 39. Pressure sensor AP, 40. Pressure sensor BP, 41. Pressure sensor CP, 42. Pressure sensor DP, 43. Pressure sensor EP, 44. Pressure sensor FP, 45. Pressure sensor GP, 46. Flow sensor AF, 47. Flow sensor BF, 48. Flow sensor CF, 49. Humidity sensor AH, 50. Humidity sensor BH, 51. Salinity sensor AS, 52. Salinity sensor... 53. Temperature sensor AT, 54. Temperature sensor BT, 55. Temperature sensor CT, 56. Temperature sensor DT, 57. Temperature sensor ET, 58. Temperature sensor FT, 59. Temperature sensor GT, 60. Temperature sensor HT, 61. Temperature sensor IT, 62. Temperature sensor JT, 63. Temperature sensor KT, 64. Second thermal storage fluid control valve A, 65. Second thermal storage fluid control valve B, 66. Second thermal storage fluid control valve C, 67. Second thermal storage fluid control valve D, 68. Second thermal storage fluid control valve E, 69. Second thermal storage fluid control valve F, 70. Second thermal storage fluid control valve G, 71. Second thermal storage fluid control valve H. Detailed Implementation

[0021] The following detailed description, in conjunction with the accompanying drawings and preferred embodiments, describes the specific implementation, structure, features, and effects of an air energy storage heat exchange module performance testing system proposed according to the present invention.

[0022] Example 1:

[0023] like Figure 1-2 As shown, the performance testing system for an air energy storage heat exchange module of the present invention includes a saturated humidification / salt addition subsystem 1, a cooling fluid subsystem 2, a heat storage fluid subsystem 3, a DCS control subsystem 4, a drive motor 5, an air compressor 6, a high-pressure air tank 7, a second heater 8, a first cooler 9, a third cooler 10, and a silencer 11, wherein:

[0024] The saturated humidification / salt addition subsystem 1 includes a first heater 101, a separator 102, and a replenishment tank 103. A temperature sensor AT53 is installed on the pipeline connecting the outlet of the first heater 101 to the gas-side inlet of the separator 102. A replenishment pump 104 is installed on the pipeline connecting the replenishment tank 103 to the liquid-side inlet of the separator 102. A temperature sensor BT54 and a heater 102a are installed at the bottom of the separator 102. A drain valve C16 is installed on the liquid-side outlet pipeline of the separator 102. A separation device 102b is installed at the top of the separator.

[0025] The cooling fluid subsystem 2 includes a cooling tower 201, a chiller 202, a cryogenic pump A203, and a cryogenic pump B204. The pipe connecting the outlet of the cooling tower 201 to the liquid-side outlet of the first cooler 9 is sequentially equipped with cryogenic pump A203, control valve J23, temperature sensor ET57, and control valve L25. The pipe connecting the outlet of the chiller 202 to the liquid-side outlet of the first cooler 9 is equipped with cryogenic pump B204. A control valve K24 is installed on the outlet pipe of cryogenic pump B204. A temperature sensor FT58 and control valve M26 are installed on the pipe connecting the outlet of control valve K24 to the cold fluid side inlet of the second cooler 305. A control valve H21 is installed on the inlet pipe of the cooling tower 201, and a control valve I22 is installed on the inlet pipe of the chiller 202. The connecting pipe between control valve H21 and control valve I22 is connected to the cold fluid outlet of the first cooler 9. A control valve N27 is installed on the pipe connecting the cold fluid side outlet of the second cooler 305 to the inlet of control valve I22.

[0026] The thermal storage fluid subsystem 3 includes a hot tank 301, a cold tank 302, a water pump 303, a third heater 304, and a second cooler 305. The inlet pipe of the hot tank 301 (equipped with control valve O28) and the inlet pipe of the cold tank 302 (equipped with control valve Q30) are both connected to the hot fluid side outlet of the second cooler 305. The outlet pipe of the hot tank 301 (equipped with control valve P29) and the outlet pipe of the cold tank 302 (equipped with control valve R31) are both connected to the inlet pipe of the water pump 303. The outlet pipe of the water pump 303 is connected to the inlet of the third heater 304. The outlet of the third heater 304... A liquid flow sensor BF47, a temperature sensor GT59, a pressure sensor DP42, and a control valve S32 are sequentially installed on the pipe connecting the heat exchanger 13 to the inlet of the test device. A branch pipe is installed before the inlet of the control valve S32 and connected to the hot fluid side inlet pipe of the second cooler 305. A control valve T33 and a control valve V35 are sequentially installed on this branch pipe. A temperature sensor HT60, a pressure sensor EP43, and a control valve U34 are sequentially installed on the pipe connecting the outlet of the heat exchanger 13 to the hot fluid side inlet of the second cooler 305.

[0027] The air compressor 6 inlet is connected to the atmosphere and the drive motor 5. A control valve A14 is installed on the pipeline connecting the air compressor 6 and the high-pressure air tank 7. A control valve B15 is installed on the pipeline connecting the outlet of the high-pressure air tank 7 and the first pressure regulating valve APV37. A pressure sensor AP39 is installed on the pipeline connecting the first pressure regulating valve APV37 and the inlet of the first heater 101. The outlet of the separator 102 is connected to the inlet of the second heater 8 and the air-side inlet of the first cooler 9. A flow sensor AF46, a humidity sensor AH49, a temperature sensor CT55, and a pressure sensor BP40 are installed on the pipeline connecting the outlet pipe of the second heater 8 (with control valve F19) and the air-side combined outlet pipe of the first cooler 9 (with control valve G20) to the air-side inlet of the heat exchanger 13 under test. A humidity sensor BH50, a temperature sensor DT56, a pressure sensor CP41, and a second pressure regulating valve BPV38 are installed sequentially on the pipeline connecting the air-side outlet of the heat exchanger 13 under test and the inlet of the third cooler 10. The outlet of the third cooler 10 is connected to the inlet of the silencer 11.

[0028] The DCS control subsystem 4 includes a data measurement and acquisition module 401, a transmission module 402, a control module 403, and a data calculation and analysis module 404. The data measurement and acquisition module 401 is connected to pressure sensors AP39, BP40, CP41, DP42, EP43, AF46, BF47, AH49, BH50, AT53, BT54, CT55, DT56, ET57, FT58, GT59, and HT60 via the transmission module 402. 2. Connected to control module 403, control module 403 is connected to control valves A14, B15, C16, D17, E18, F19, G20, H21, I22, J23, K24, L25, M26, N27, O28, P29, Q30, R31, S32, T33, U34, V35, first pressure regulating valve APV37, and second pressure regulating valve BPV38. Control module 403 is interconnected with data calculation and analysis module 404.

[0029] Working principle: The gaseous working fluid is air; the working fluids in the saturated humidification / salting subsystem 1 and the heat storage fluid subsystem 3 are softened water; and the working fluid in the cooling fluid subsystem 2 is circulating water. First, the drive motor 5 is started to drive the air compressor 6. Air entering the air compressor 6 is pressurized and stored in the high-pressure air tank 7. After the pressure in the high-pressure air tank stabilizes at the set value, the drive motor 5, compressor 6, and control valves A14 and B15 are turned off. The opening of the first pressure regulating valve APV37 stabilizes the value of the pressure sensor AP39 at the set value. The power of the first heater 101 is adjusted to maintain the parameter value of the temperature sensor AT53 at the dew point temperature of the high-pressure air.

[0030] In the saturated humidification / salt addition subsystem 1, high-pressure air enters the separator 102. The power of the heater 102a at the bottom of the separator is adjusted to keep the value of the temperature sensor BT54 at the bottom of the separator 102 at the dew point temperature of the softened water. When the liquid level in the separator 102 is lower than the set value, the replenishment pump 104 is started to allow the softened water in the replenishment tank 103 to enter the separator 102 until the liquid level reaches the set value. After the high-pressure air is humidified in the separator 102, it forms saturated high-pressure air with saturated humidity. After the saturated high-pressure air passes through the separator 102b at the top of the separator to remove large water mist particles, it enters the combined pipeline of the parallel heating branch and cooling branch inlet.

[0031] When the temperature of the saturated high-pressure air is lower than the set value, control valves D17 and F19 are opened to adjust the power of the second heater 8 to heat the saturated high-pressure air and stabilize the temperature sensor CT55 at the set value; when the temperature of the saturated high-pressure air is higher than the set value, control valves E18 and G20 are opened to adjust the power of the first cooler 9 to cool the saturated high-pressure air and stabilize the temperature sensor CT55 at the set value.

[0032] Adjust the opening of the second pressure regulating valve BPV38 to stabilize the value of the pressure sensor CP41 at the set value. The high-pressure air after heat exchange in the heat exchange device under test enters the third cooler 10 through the outlet of the second pressure regulating valve BPV38 to cool down and then enters the silencer 11. The high-pressure air after being processed by the silencer 11 is discharged into the atmosphere.

[0033] In the cooling fluid subsystem 2, softened water enters the parallel cooling tower branch and chiller branch from the fluid side outlet of the first cooler 9. Based on performance testing requirements, when lower-temperature softened water is needed, control valves H21 and J23 are opened to adjust the power of cooling tower 201 and start cryogenic pump 203; when even lower-temperature softened water is needed, control valves I22 and K24 are opened to adjust the power of chiller 202 and start cryogenic pump 204. When the cryogenic softened water exchanges heat with the saturated high-pressure air in the first cooler 9, the power of chiller 202 or cooling tower 201 is adjusted until the value of temperature sensor ET57 stabilizes at the set value, then control valve L25 is opened. When the cryogenic softened water exchanges heat with the hot fluid in the second cooler 305, the power of chiller 202 or cooling tower 201 is adjusted until the value of temperature sensor FT58 stabilizes at the set value, then control valves M26 and N27 are opened.

[0034] In the thermal storage fluid subsystem, according to performance testing requirements, when the water side of the heat exchanger under test requires cold water, control valves Q30, R31, S32, T33, and V35 are opened, water pump 303 is started, and the power of the second cooler 305 is adjusted so that the softened water in the cold tank 302 undergoes self-circulation cooling through the second cooler 305. After the value of the temperature sensor GT59 stabilizes at the set value, control valve T33 is closed, and control valves U34 and O28 are opened. The low-temperature softened water in the cold tank 302 enters the heat exchanger under test via water pump 303 to exchange heat with the saturated high-pressure gas. The softened water after heat exchange enters the hot tank 301 for storage. When the water side of the heat exchanger under test requires hot water, control valves O28 and V35 are opened. P29, control valve S32, control valve T33, and control valve V35 are used to start water pump 303 and adjust the power of the third heater 304 so that the softened water in the hot tank 301 can be heated by the third heater 303 through self-circulation. After the value of temperature sensor GT59 stabilizes at the set value, control valve T33 is closed and control valves V35 and Q30 are opened. The high-temperature softened water in the hot tank 301 enters the heat exchange device to be tested through water pump 303 to exchange heat with saturated high-pressure gas. At the same time, the power of the third heater 304 is adjusted to compensate the temperature of the high-temperature liquid in the hot tank 301 so that the temperature of the high-temperature softened water is maintained at the set value and enters the heat exchange device to be tested to exchange heat with saturated high-pressure air. After heat exchange, the softened water is cooled by the second cooler 305 and then enters the cold tank 302 for storage.

[0035] During the operation of the aforementioned performance testing system, the data measurement and acquisition module 401 of the DCS control subsystem collects real-time data on the performance parameters of pressure sensors AP39, BP40, CP41, DP42, EP43, AF46, BF47, AH49, BH50, AT53, BT54, CT55, DT56, ET57, FT58, GT59, and HT60 in the testing system. This data is then transmitted via the transmission module 402 to the data calculation and analysis module 404 for real-time analysis. Each performance parameter is analyzed and calculated. Based on the analysis and calculation results, the testers can adjust the control valves A14, B15, C16, D17, E18, F19, G20, H21, I22, J23, K24, L25, M26, N27, O28, P29, Q30, R31, S32, T33, U34, V35, first pressure regulating valve APV37, second pressure regulating valve BPV38, first heater 101, second heater 8, third heater 304, separator bottom heater 102a, first cooler 9, third cooler 10, and second cooler 305 through the control module 403.

[0036] After the system has been running stably for a period of time and the required test performance parameters have been stable for a period of time, the testing process is completed.

[0037] Example 2:

[0038] like Figure 2-3 As shown, the performance testing system for an air energy storage heat exchange module of the present invention includes a saturated humidification / salt addition subsystem 1, a cooling fluid subsystem 2, a heat storage fluid subsystem 3, a DCS control subsystem 4, a drive motor 5, an air compressor 6, a high-pressure air storage tank 7, a second heater 8, a first cooler 9, a third cooler 10, and a silencer 11. In the saturated humidification / salt addition subsystem 1, the bottom of the separator 102 is a sprayer 102c. A control valve W36 is installed on the pipeline between the liquid-side outlet at the bottom of the separator 102 and the inlet of the replenishment tank 103. A heater 103a is installed inside the replenishment tank 103, and a temperature sensor IT61 is installed on the pipeline at the outlet of the replenishment tank 103. A salinity sensor AS51 is installed on the gas-side inlet pipeline of the heat exchange device 13 under test, and a salinity sensor BS52 is installed on the gas-side outlet pipeline. The rest is the same as in Embodiment 1.

[0039] Working Principle: The liquid working fluid in the saturated humidification / salt addition subsystem 1 is a saturated sodium chloride aqueous solution. Before starting the air energy storage heat exchange module performance test system, heater 103a is started to heat the saturated sodium chloride aqueous solution in the replenishment tank 103. After the temperature sensor IT61 reaches the set value, the air energy storage heat exchange module performance test system is started according to the steps in Example 1. After the high-pressure air enters the separator 102, the replenishment pump 104 and sprayer 102c are started, and the power of heater 103a is adjusted to make the high-pressure air form a certain salt spray concentration more efficiently and quickly. The working principle of the air energy storage heat exchange module performance test system is the same as in Example 1.

[0040] Example 3:

[0041] like Figure 4 As shown, an air energy storage heat exchange module performance testing system includes a saturated humidification / salt addition subsystem 1, a cooling fluid subsystem 2, a heat storage fluid subsystem 3, a second heat storage fluid subsystem 12, a DCS control subsystem 4, a drive motor 5, an air compressor 6, a high-pressure air tank 7, a second heater 8, a first cooler 9, a third cooler 10, and a silencer 11. The second heat storage fluid subsystem 12 includes a second hot tank 1201, a second cold tank 1202, a second water pump 1203, a third heater 1204, and a first heat storage cooler 1205. The inlet pipe of the hot tank 1201, equipped with control valve A64, and the inlet pipe of the cold tank 1202, equipped with control valve C66, are both connected to the hot fluid side outlet of the second heat storage cooler 1205. The outlet pipe of the hot tank 1201, equipped with control valve B65, is also connected to the hot fluid side outlet. The outlet pipe of the cold tank 1202, equipped with control valve D67, is connected to the inlet pipe of the water pump 1203. The outlet pipe of the water pump 1203 is connected to the inlet of the third heater 1204. On the pipeline connecting the outlet pipe of the third heater 1204 to the inlet of the heat exchange device 13 under test, a liquid flow sensor CF48, a temperature sensor JT62, a pressure sensor FP44, and a control valve E68 are sequentially installed. A branch pipe is provided before the inlet of control valve E68 and connected to the hot fluid side inlet pipe of the second heat storage cooler 1205. On this branch pipe, control valves F69 and G70 are sequentially installed. On the pipeline connecting the outlet of the heat exchange device 13 under test to the hot fluid side inlet of the second heat storage cooler 1205, a temperature sensor KT63, a pressure sensor GP45, and a control valve H71 are sequentially installed. The rest is the same as in Embodiment 1.

[0042] Working principle: The liquid working fluid in the second thermal storage fluid subsystem 12 and the thermal storage fluid subsystem 3 can be the same or different working fluids. Heat transfer oil is selected as the liquid working fluid in the second thermal storage fluid subsystem 12. The rest is the same as in Example 1. The performance testing system of the air energy storage heat exchange module of the present invention can meet the performance testing of three-channel heat exchange equipment of gas / water / oil, and also cover the performance testing needs of two-channel heat exchange equipment such as water / oil and gas / oil.

[0043] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments without departing from the technical essence of the present invention shall still fall within the scope of the present invention.

Claims

1. A performance testing system for an air energy storage heat exchange module, characterized in that: The system includes a saturated humidification / salt addition subsystem (1), a cooling fluid subsystem (2), a heat storage fluid subsystem (3), a DCS control subsystem (4), a drive motor (5), an air compressor (6), a high-pressure air tank (7), a second heater (8), a first cooler (9), a third cooler (10), and a silencer (11). The saturated humidification / salt addition subsystem (1) includes a first heater (101), a separator (102), and a replenishment tank (103). The outlet of the first heater (101) is connected to the outlet of the separator (103). 02) A temperature sensor AT (53) is installed on the gas side inlet connection pipeline, a replenishment pump (104) is installed on the replenishment tank (103) and the liquid side inlet connection pipeline of the separator (102), a temperature sensor BT (54) and a bottom heater (102a) are installed at the bottom of the separator (102), a control valve C (16) is installed on the liquid side outlet pipeline of the separator (102), and a top separator (102b) is installed at the top. The liquid working medium in the saturated humidification / salt addition subsystem (1) is a saturated sodium chloride aqueous solution. The cooling fluid subsystem (2) includes a cooling tower (201), a chiller (202), a cryogenic pump A (203), and a cryogenic pump B (204). The chiller A (203), control valve J (23), temperature sensor ET (57), and control valve L (25) are sequentially installed on the pipeline connecting the outlet of the cooling tower (201) to the liquid-side outlet of the first cooler (9). The chiller B (204) is installed on the pipeline connecting the outlet of the chiller (202) to the liquid-side outlet of the first cooler (9). A control valve K (24) is installed on the outlet pipeline of the chiller B (204). A temperature sensor FT (58) and a control valve M (26) are installed on the pipeline connecting the outlet of valve K (24) to the cold fluid side inlet of the second cooler (305). A control valve H (21) is installed on the inlet pipeline of the cooling tower (201), and a control valve I (22) is installed on the inlet pipeline of the chiller (202). The connecting pipeline between control valve H (21) and control valve I (22) is connected to the cold fluid outlet of the first cooler (9). A control valve N (27) is installed on the pipeline connecting the cold fluid side outlet of the second cooler (305) to the inlet of control valve I (22). The thermal storage fluid subsystem (3) includes a hot tank (301), a cold tank (302), a water pump (303), a third heater (304), and a second cooler (305). The inlet pipe of the hot tank (301) equipped with a control valve O (28) and the inlet pipe of the cold tank (302) equipped with a control valve Q (30) are both connected to the hot fluid side outlet of the second cooler (305). The outlet pipe of the hot tank (301) equipped with a control valve P (29) and the outlet pipe of the cold tank (302) equipped with a control valve R (31) are both connected to the inlet pipe of the water pump (303). The outlet pipe of the water pump (303) is connected to the inlet of the third heater (304). 304) A liquid flow sensor BF (47), a temperature sensor GT (59), a pressure sensor DP (42), and a control valve S (32) are sequentially installed on the pipeline connecting the outlet pipe to the inlet of the heat exchanger (13) under test. A branch pipe is set before the inlet of the control valve S (32) and connected to the hot fluid side inlet pipe of the second cooler (305). A control valve T (33) and a control valve V (35) are sequentially installed on the branch pipe. A temperature sensor HT (60), a pressure sensor EP (43), and a control valve U (34) are sequentially installed on the pipeline connecting the outlet of the heat exchanger (13) under test to the hot fluid side inlet of the second cooler (305). The air compressor (6) inlet is connected to the atmosphere and the drive motor (5). A control valve A (14) is installed on the pipeline connecting the air compressor (6) and the high-pressure air tank (7). A control valve B (15) is installed on the pipeline connecting the outlet of the high-pressure air tank (7) and the first pressure regulating valve APV (37). A pressure sensor AP (39) is installed on the pipeline connecting the first pressure regulating valve APV (37) and the inlet of the first heater (101). The separator (102) outlet is connected to the inlet of the second heater (8) and the air-side inlet of the first cooler (9). The outlet pipe of the second heater (8) equipped with a control valve F (19) and A flow sensor AF (46), a humidity sensor AH (49), a temperature sensor CT (55), and a pressure sensor BP (40) are installed on the pipeline connecting the gas-side outlet of the first cooler (9) with control valve G (20) to the gas-side inlet of the heat exchanger (13) under test. A humidity sensor BH (50), a temperature sensor DT (56), a pressure sensor CP (41), and a second pressure regulating valve BPV (38) are installed sequentially on the pipeline connecting the gas-side outlet of the heat exchanger (13) under test to the inlet of the third cooler (10). The outlet of the third cooler (10) is connected to the inlet of the silencer (11).

2. The performance testing system for an air energy storage heat exchange module as described in claim 1, characterized in that: The DCS control subsystem (4) includes a data measurement and acquisition module (401), a transmission module (402), a control module (403), and a data calculation and analysis module (404). The data measurement and acquisition module (401) is connected to pressure sensors AP (39), BP (40), CP (41), DP (42), EP (43), AF (46), BF (47), AH (49), BH (50), AT (53), BT (54), CT (55), DT (56), ET (57), FT (58), GT (59), and HT (60) through the transmission module (402). The control module (403) is connected to the control valve A (14), control valve B (15), control valve C (16), control valve D (17), control valve E (18), control valve F (19), control valve G (20), control valve H (21), control valve I (22), control valve J (23), control valve K (24), control valve L (25), control valve M (26), control valve N (27), control valve O (28), control valve P (29), control valve Q (30), control valve R (31), control valve S (32), control valve T (33), control valve U (34), control valve V (35), first pressure regulating valve APV (37), and second pressure regulating valve. The control module (403) is interconnected with the data calculation and analysis module (404).

3. The performance testing system for an air energy storage heat exchange module as described in claim 1 or 2, characterized in that: In the saturated humidification / salt addition subsystem (1), the bottom of the separator (102) is a sprayer (102c). A control valve W (36) is installed on the pipeline between the liquid side outlet of the bottom of the separator (102) and the inlet of the replenishment tank (103). A heater (103a) is installed inside the replenishment tank (103). A temperature sensor IT (61) is installed on the pipeline at the outlet of the replenishment tank (103). A salinity sensor AS (51) is installed on the gas side inlet pipeline of the heat exchange device (13) to be tested, and a salinity sensor BS (52) is installed on the gas side outlet pipeline.

4. The performance testing system for an air energy storage heat exchange module as described in claim 1 or 2, characterized in that: It also includes a second thermal storage fluid subsystem (12), which includes a second hot tank (1201), a second cold tank (1202), a second water pump (1203), a fourth heater (1204), and a second thermal storage cooler (1205). The inlet pipe of the second hot tank (1201) equipped with a second thermal storage fluid control valve A (64) and the inlet pipe of the second cold tank (1202) equipped with a second thermal storage fluid control valve C (66) are both connected to the hot fluid side outlet of the second thermal storage cooler (1205). The outlet pipe of the second hot tank (1201) equipped with a second thermal storage fluid control valve B (65) and the outlet pipe of the second cold tank (1202) equipped with a second thermal storage fluid control valve D (67) are both connected to the inlet pipe of the second water pump (1203). The outlet pipe of the second water pump (1203) is connected to the fourth heater (1204). The inlet of heater (1204) is connected to the outlet pipe of the fourth heater (1204) and the inlet of the heat exchange device (13) under test. The liquid flow sensor CF (48), temperature sensor JT (62), pressure sensor FP (44), and second thermal storage fluid control valve E (68) are sequentially installed on the pipeline. A branch pipe is set before the inlet of the second thermal storage fluid control valve E (68) and connected to the hot fluid side inlet pipe of the second thermal storage cooler (1205). The second thermal storage fluid control valve F (69) and second thermal storage fluid control valve G (70) are sequentially installed on the branch pipe. The outlet of the heat exchange device (13) under test and the hot fluid side inlet of the second thermal storage cooler (1205) are sequentially installed with temperature sensor KT (63), pressure sensor GP (45), and second thermal storage fluid control valve H (71).

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