Intelligent test system for water working medium compressor based on energy balance

Abstract

The utility model belongs to the technical field of compressor testing, and discloses a water working medium compressor intelligent testing system based on energy balance, which comprises a heat pump heating system, a flash evaporation steam supply system, a water storage reheating and cooling system, a compression steam supply and expansion cooling temperature reduction testing system, a compressor water replenishing system and an intelligent testing and regulating system, the heat pump heating system is respectively coupled with the flash evaporation steam supply system and the water storage reheating and cooling system through the heat storage water tank; the compression steam supply and expansion cooling test system is respectively coupled with the flash steam supply system and the water storage reheating and cooling system through a flash tank; the flash evaporation steam supply system and the water storage reheating and cooling system are coupled through a heat storage water tank and a flash evaporation tank respectively; and the compression steam supply and expansion cooling test system and the compressor water replenishing system are coupled through the tested steam compressor. The intelligent test system provided by the utility model has the advantages of higher energy utilization rate and better energy-saving effect.

Description

Technical Field

[0001] The utility model relates to the technical field of compressor testing, in particular to an intelligent testing system for a water working medium compressor based on energy balance. Background Art

[0002] At present, there is no test system specifically for water vapor compressors. The existing water vapor compressor tests are all conducted by first measuring the air, and then directly using the water vapor compressor in the required system after the compressor performance is preliminarily tested by compressing the air, and then testing the water vapor compressor performance during use; and in general, the test of the heat pump system compressor requires the construction of a special heat pump system. At this time, the condenser and evaporator of the heat pump system are in different states, and heat recovery is rarely performed. The heat required by the evaporator is directly achieved through electric heating, and the heat dissipation of the condenser is ensured by heat dissipation cooling, thereby achieving energy balance in the test system, which will lead to an increase in system energy consumption; in addition, some technologies use the balance of heat within the system to achieve energy saving, but they cannot maximize the use of energy in the system, and the energy saving effect is limited. Therefore, there is room for improvement in the above-mentioned technologies. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to propose an intelligent test system for a water working fluid compressor based on energy balance, which has higher energy utilization rate and better energy saving effect.

[0004] In the first aspect, the present application provides an intelligent test system for a water working fluid compressor based on energy balance, which comprises: a heat pump heating system, a flash steam supply system, a water storage reheat and cooling system, a compression steam supply and expansion cooling and temperature reduction test system, a compressor water supply system and an intelligent test and control system; the heat pump heating system is coupled to the flash steam supply system and the water storage reheat and cooling system respectively through a hot water storage tank; the compression steam supply and expansion cooling and temperature reduction test system is coupled to the flash steam supply system and the water storage reheat and cooling system respectively through a flash tank; the flash steam supply system and the water storage reheat and cooling system are coupled respectively through the hot water storage tank and the flash tank; the compression steam supply and expansion cooling and temperature reduction test system and the compressor water supply system are coupled through the tested water vapor compressor; the heat pump heating system comprises: a heat pump unit, a heat pump unit condenser and a hot water storage tank, the heat pump unit and the heat pump unit condenser are closed-loop connected, The condenser of the heat pump unit is arranged in the hot water storage tank; the flash steam supply system includes: a flash tank and a flash water spray pipe, the flash water spray pipe is arranged in the flash tank and sprays the water working medium into the flash tank; the water storage reheat and cooling system includes: a condensing heat exchanger, an air-cooled radiator and a cooling fan, the condensing heat exchanger is connected to the air-cooled radiator, and the cooling fan is used to dissipate heat and cool the air-cooled radiator; the compression steam supply and expansion cooling test system includes: a condensate supercooler, a condensate metering water tank and an electromagnetic meter, the condensate supercooler is connected to the condensate metering water tank, and the electromagnetic meter is arranged in the condensate metering water tank; the compressor water supply system includes: a water vapor compressor to be tested and a compressor water supply pump, the water vapor compressor to be tested is connected to the compressor water supply pump; the intelligent test and regulation system includes: an intelligent controller, and the intelligent controller is used to regulate the test system.

[0005] In one embodiment, the intelligent test system for water-working fluid compressor based on energy balance realizes reasonable matching of heat between the steam generating end and the steam condensing end through the system's own thermal balance, and reduces energy consumption in the system as much as possible through its own thermal balance, so that the entire test process is in a state of minimum energy consumption; thereby, the test system has the advantages of higher energy utilization and better energy-saving effect.

[0006] In one embodiment, the water working fluid compressor intelligent testing system based on energy balance also includes multiple temperature sensors, multiple pressure sensors and multiple flow meters; the multiple temperature sensors are used to detect temperature information, the multiple pressure sensors are used to detect pressure information, and the multiple flow meters are used to detect flow information, and the temperature information, the pressure information and the flow information are transmitted to the intelligent controller in real time.

[0007] In one embodiment, the compression steam supply and expansion cooling test system also includes: an expansion generator, which is arranged between the electromagnetic heater and the condensing heat exchanger, and is used to recover the heat energy in the test system to generate electricity; the intelligent controller is used to distribute the electricity generated by the expansion generator to supply the tested water vapor compressor and the heat pump unit, and the condensed water amount information measured by the electromagnetic meter is transmitted to the intelligent controller.

[0008] In one embodiment, the compression steam supply and expansion cooling test system also includes: an electromagnetic heater, which is arranged downstream of the exhaust end of the tested steam compressor and is used to heat the high-temperature and high-pressure steam from the tested steam compressor to a superheated state.

[0009] In one embodiment, the flash steam supply system also includes: a water storage flash pipe; the water storage reheat and cooling system also includes: a first circulation return pipe, a second circulation return pipe and a third circulation return pipe; the compression steam supply and expansion cooling and temperature reduction test system also includes: a steam inlet pipe, a steam exhaust pipe, an expander steam outlet pipe, a condenser subcooling pipe, a subcooling outlet pipe, a make-up water preheating pipe and a make-up water inlet pipe; the compressor make-up water system also includes: a compressor make-up water pipe; the multiple temperature sensors, the multiple pressure sensors, and the multiple flow meters are respectively arranged in the flash steam supply system, the water storage reheat and cooling system, the compression steam supply and expansion cooling and temperature reduction test system and the compressor make-up water system and are used to measure feedback temperature information, pressure information and flow information.

[0010] In one embodiment, a first temperature sensor and a first pressure sensor are installed on the hot water storage tank, and the first temperature sensor and the first pressure sensor are used to measure the temperature information and the pressure information of the liquid water in the hot water storage tank, respectively.

[0011] In one embodiment, a second temperature sensor, a second pressure sensor and a second flow meter are installed on the water storage flash tube, and the second temperature sensor, the second pressure sensor and the second flow meter are used to measure the temperature information, pressure information and flow information of the liquid water in the water storage flash tube respectively.

[0012] In one embodiment, a third temperature sensor, a third pressure sensor and a third flow meter are installed on the steam intake pipe, and the third temperature sensor, the third pressure sensor and the third flow meter are used to measure the temperature information, pressure information and flow information of the water vapor in the steam intake pipe respectively.

[0013] In one embodiment, a fourth temperature sensor, a fourth pressure sensor and a fourth flow meter are installed on the compressor water supply pipe, and the fourth temperature sensor, the fourth pressure sensor and the fourth flow meter are used to measure the temperature information, pressure information and flow information of the liquid water in the compressor water supply pipe, respectively.

[0014] In one embodiment, a fifth temperature sensor, a fifth pressure sensor and a fifth flow meter are installed on the steam exhaust pipe, and the fifth temperature sensor, the fifth pressure sensor and the fifth flow meter are used to measure the temperature information, pressure information and flow information of the water vapor in the steam exhaust pipe respectively.

[0015] In one embodiment, a sixth temperature sensor, a sixth pressure sensor and a sixth flow meter are installed on the first circulating return water pipe, and the sixth temperature sensor, the sixth pressure sensor and the sixth flow meter are used to measure the temperature information, pressure information and flow information of the liquid water in the first circulating return water pipe respectively.

[0016] In one embodiment, a seventh temperature sensor and a seventh pressure sensor are installed on the second circulating water return pipe, and the seventh temperature sensor and the seventh pressure sensor are used to measure the temperature information and the pressure information of the liquid water in the second circulating water return pipe, respectively.

[0017] In one embodiment, an eighth temperature sensor and an eighth pressure sensor are installed on the third circulating water return pipe, and the eighth temperature sensor and the eighth pressure sensor are used to measure the temperature information and the pressure information of the liquid water in the third circulating water return pipe, respectively.

[0018] In one embodiment, a ninth temperature sensor, a ninth pressure sensor and a ninth flow meter are installed on the expander steam outlet pipe, and the ninth temperature sensor, the ninth pressure sensor and the ninth flow meter are used to measure the temperature information, pressure information and flow information of the water vapor in the expander steam outlet pipe, respectively.

[0019] In one embodiment, a tenth temperature sensor and a tenth pressure sensor are installed on the condensation supercooling pipe, and the tenth temperature sensor and the tenth pressure sensor are used to measure the temperature information and the pressure information of the liquid water in the condensation supercooling pipe, respectively.

[0020] In one embodiment, an eleventh temperature sensor, an eleventh pressure sensor and an eleventh flow meter are installed on the supercooling water outlet pipe, and the eleventh temperature sensor, the eleventh pressure sensor and the eleventh flow meter are used to measure the temperature information, pressure information and flow information of the liquid water in the supercooling water outlet pipe, respectively.

[0021] In one embodiment, a twelfth temperature sensor and a twelfth pressure sensor are installed on the water replenishment preheating pipe, and the twelfth temperature sensor and the twelfth pressure sensor are used to measure the temperature information and the pressure information of the liquid water in the water replenishment preheating pipe respectively; a thirteenth temperature sensor, a thirteenth pressure sensor and a thirteenth flow meter are installed on the water replenishment inlet pipe, and the thirteenth temperature sensor, the thirteenth pressure sensor and the thirteenth flow meter are used to measure the temperature information, the pressure information and the flow information of the liquid replenishment water in the water replenishment inlet pipe respectively.

[0022] The present application also provides an intelligent testing method for a water working fluid compressor based on energy balance, and the method is applied to the intelligent testing system for a water working fluid compressor based on energy balance as described above; before the test starts, the heat pump heating system works first, and external supplementary water flows through a water tank supplementary pipe through a first stop valve and then enters a hot water storage tank; the intelligent controller controls the operation of the heat pump unit, and continuously heats the water working fluid in the hot water storage tank to a predetermined test temperature through the condenser of the heat pump unit.

[0023] Furthermore, at the beginning of the test, the flash steam supply system and the water storage reheat and cooling system work simultaneously, and the water working medium in the hot water storage tank flows through the water storage circulation pump, the first one-way valve and the flash valve through the water storage flash pipe, and enters the flash water spray pipe in the flash tank; the pressure is reduced in the flash water spray pipe to flash out steam and saturated water, and the low-temperature saturated water after flashing in the flash tank flows through the first circulation return water pipe, the second circulation return water pipe and the third circulation return water pipe respectively through the fifth stop valve, the condensing heat exchanger and the sixth stop valve, and is sent back to the hot water storage tank by the circulation return water pump to complete the cycle.

[0024] Furthermore, when the compression steam supply and expansion cooling test system is working, the low-temperature and low-pressure water vapor in the flash tank is sucked in and compressed by the tested water vapor compressor through the steam inlet pipe, and the generated high-temperature and high-pressure water vapor flows through the steam exhaust pipe through the second one-way valve and flows into the electromagnetic heater; after the high-temperature and high-pressure water vapor is heated in the electromagnetic heater, it flows into the expansion generator through the steam exhaust pipe to work and generate electricity, and the high-temperature and high-pressure water vapor is converted into low-temperature and low-pressure water vapor, which flows into the condensing heat exchanger through the expander steam outlet pipe, condenses and releases heat in the condensing heat exchanger to form condensate, heats the saturated water from the flash tank, and the condensate of the low-temperature and low-pressure water vapor flows through the condensation supercooling pipe through the first visual tube and the seventh stop valve into the condensate supercooler.

[0025] Furthermore, when the compressor water supply system is working, the fourteenth stop valve is opened, and the water working medium from the outside flows through the compressor water supply pipe, passes through the fourteenth stop valve, and is sent into the compression chamber of the measured water vapor compressor by the compressor water supply pump.

[0026] Furthermore, the expansion generator is used to recover the heat energy in the test system to generate electricity, and the intelligent controller is used to match the amount of electricity in the test system.

[0027] According to the second aspect of the utility model, the water working medium compressor intelligent testing method based on energy balance is applied to the water working medium compressor intelligent testing system based on energy balance as described in any one of the first aspects. The advantages of the testing method and the above-mentioned testing system over the prior art are the same, which will not be repeated here.

[0028] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0030] Figure 1 It is a structural schematic diagram of an intelligent testing system for a water working fluid compressor based on energy balance according to an embodiment of the utility model.

[0031] Reference numerals:

[0032] 10 heat pump unit, 101 heat pump unit condenser, 11 water tank water supply pipe, 12 first stop valve, 13 hot water storage tank, 14 second stop valve, 15 water tank drain pipe,

[0033] 20 the third stop valve, 21 the water storage flash pipe, 23 the water storage circulation pump, 24 the first check valve, 25 the flash valve, 26 the flash tank, 27 the flash spray pipe, 28 the flash tank drain pipe, 29 the fourth stop valve,

[0034] 30 fifth stop valve, 31 circulation return pump, 32 first circulation return pipe, 33 condensing heat exchanger, 34 second circulation return pipe, 35 cooling fan, 36 air-cooled radiator, 37 third circulation return pipe, 38 sixth stop valve,

[0035] 41 steam inlet pipe, 42 tested steam compressor, 43 steam exhaust pipe, 44 second one-way valve, 45 electromagnetic heater, 46 expansion generator, 47 expander steam outlet pipe, 48 first visual tube, 49 condensate subcooling pipe, 50 seventh stop valve, 51 condensate subcooler, 52 subcooling outlet pipe, 53 second visual tube, 54 condensate metering water tank, 55 electromagnetic meter, 56 eighth stop valve, 57 metering water tank exhaust pipe, 58 ninth stop valve, 59 metering water tank drain pipe,

[0036] 61 the tenth stop valve, 62 the eleventh stop valve, 63 the external water supply pipe, 64 the water supply preheating pipe, 65 the water supply pump, 66 the twelfth stop valve, 67 the third one-way valve, 68 the water supply inlet pipe, 69 the thirteenth stop valve,

[0037] 71 compressor water supply pump, 72 fourteenth stop valve, 73 compressor water supply pipe,

[0038] 80 intelligent controllers,

[0039] 801 a first temperature sensor, 802 a first pressure sensor,

[0040] 811 a second temperature sensor, 812 a second pressure sensor, 813 a second flow meter,

[0041] 821 a third temperature sensor, 822 a third pressure sensor, 823 a third flow meter,

[0042] 831 a fourth temperature sensor, 832 a fourth pressure sensor, 833 a fourth flow meter,

[0043] 841 a fifth temperature sensor, 842 a fifth pressure sensor, 843 a fifth flow meter,

[0044] 851 a sixth temperature sensor, 852 a sixth pressure sensor, 853 a sixth flow meter,

[0045] 861 seventh temperature sensor, 862 seventh pressure sensor,

[0046] 871 an eighth temperature sensor, 872 an eighth pressure sensor,

[0047] 8819th temperature sensor, 8829th pressure sensor, 8839th flow meter,

[0048] 891 tenth temperature sensor, 892 tenth pressure sensor,

[0049] 901 11 temperature sensor, 902 11 pressure sensor, 903 11 flow meter,

[0050] 911 twelfth temperature sensor, 912 twelfth pressure sensor,

[0051] 921 the thirteenth temperature sensor, 922 the thirteenth pressure sensor, 923 the thirteenth flow meter. DETAILED DESCRIPTION

[0052] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0054] Reference below Figure 1 The following describes an intelligent testing system for water working medium compressor based on energy balance according to an embodiment of the utility model. Figure 1As shown, according to the embodiment of the utility model, the water working medium compressor intelligent test system based on energy balance includes: a heat pump heating system, a flash steam supply system, a water storage reheat and cooling system, a compression steam supply and expansion cooling and temperature reduction test system, a compressor water supply system and an intelligent test and control system; further, the heat pump heating system is coupled with the flash steam supply system and the water storage reheat and cooling system through the hot water storage tank 13; further, the compression steam supply and expansion cooling and temperature reduction test system is coupled with the flash steam supply system through the flash tank 26. , water storage reheat and cooling system coupling; further, the flash steam supply system and the water storage reheat and cooling system are coupled through the hot water storage tank 13 and the flash tank 26 respectively; further, the compression steam supply and expansion cooling test system and the compressor water supply system are coupled through the tested water vapor compressor 42; further, the heat pump heating system includes: a heat pump unit 10, a heat pump unit condenser 101 and a hot water storage tank 13, the heat pump unit 10 and the heat pump unit condenser 101 are closed-loop connected, and the heat pump unit condenser 101 is arranged at The hot water storage tank 13; further, the flash steam supply system includes: a flash tank 26 and a flash water spray pipe 27, further, the flash water spray pipe 27 is arranged in the flash tank 26 and sprays the water working medium into the flash tank 26; further, the water storage reheat and cooling system includes: a condensing heat exchanger 33, an air-cooled radiator 36 and a cooling fan 35, the condensing heat exchanger 33 and the air-cooled radiator 36 are connected, and the cooling fan 35 is used to dissipate heat and cool the air-cooled radiator 36; further, the compression steam supply and expansion cooling test system includes: It includes: a condensate supercooler 51, a condensate metering water tank 54 and an electromagnetic meter 55, the condensate supercooler 51 is connected to the condensate metering water tank 54, and the electromagnetic meter 55 is arranged in the condensate metering water tank 54; further, the compressor water supply system includes: a tested water vapor compressor 42 and a compressor water supply pump 71, the tested water vapor compressor 42 and the compressor water supply pump 71 are connected; further, the intelligent testing and control system includes: an intelligent controller 80, and the intelligent controller 80 is used to control the test system.

[0055] In the prior art, there is currently no test system specifically for water vapor compressors. The existing water vapor compressor tests are all conducted by first measuring the air, performing a preliminary test of the compressor performance by compressing the air, and then directly using the water vapor compressor in the required system to test the performance of the water vapor compressor during use. In addition, due to the large difference in the properties of air and water vapor, the suction compression of air at normal temperature and pressure will not produce negative pressure, while the water working medium needs to adapt to the suction pressure to be measured under negative pressure conditions due to the different heat pump working conditions. At the same time, the thermodynamic processes of the water vapor compressor in compressing water vapor and air are also different, which results in the compression of air only being used as a preliminary performance verification of the water vapor compressor, which can ensure the smooth operation of the compressor but cannot detect the specific performance of the water vapor compressor.

[0056] Generally speaking, the test of the compressor of the heat pump system requires the construction of a special heat pump system. At this time, the condenser and evaporator of the heat pump system are in different states, and heat recovery is rarely performed. The heat required by the evaporator is directly realized by electric heating, and the heat dissipation of the condenser is ensured by heat dissipation cooling, which leads to increased system energy consumption. At the same time, in the process of testing the water vapor compressor, it is basically necessary to manually adjust the heat consumption according to the heat consumption, or match the waste heat and heat consumption. The overall operation and testing process is very cumbersome, time-consuming and labor-intensive.

[0057] At the same time, in the performance test of the water vapor compressor in the heat pump system, the suction flow rate and exhaust flow rate of the compressor are very important indicators. Generally, the heat pump test system only uses the suction and exhaust flow meter to test the suction and exhaust flow rate of the compressor. However, because the suction and exhaust state of the water vapor compressor needs to spray water into the compression chamber is unstable, it is often impossible to accurately test the suction and exhaust flow rate of the compressor. Therefore, a more accurate method is needed to calibrate and verify the accuracy and reliability of the suction and exhaust flow rate.

[0058] According to the intelligent test system for water working fluid compressor based on energy balance of the utility model, reasonable matching of heat between the steam generating end and the steam condensing end is achieved through the thermal balance within the system itself, and energy consumption in the system is reduced as much as possible through its own thermal balance, so that the entire test process is in a state of minimum energy consumption; thereby, the test system has the advantages of higher energy utilization rate and better energy-saving effect.

[0059] According to an intelligent testing system for water working medium compressor based on energy balance according to an embodiment of the utility model, Figure 1 As shown, it also includes multiple temperature sensors, multiple pressure sensors and multiple flow meters; further, the multiple temperature sensors are used to detect temperature information, further, the multiple pressure sensors are used to detect pressure information, and the multiple flow meters are used to detect flow information, and further, the temperature information, pressure information and flow information are transmitted to the intelligent controller 80 in real time.

[0060] According to an intelligent testing system for water working medium compressor based on energy balance according to an embodiment of the utility model, Figure 1 As shown, the compression steam supply and expansion cooling test system also includes: an expansion generator 46. Further, the intelligent controller 80 is used to distribute the power generated by the expansion generator 46 to supply the tested water vapor compressor 42 and the heat pump unit 10. Further, the condensed water amount information measured by the electromagnetic meter 55 is transmitted to the intelligent controller 80.

[0061] According to an intelligent testing system for water working medium compressor based on energy balance according to an embodiment of the utility model, Figure 1As shown, the flash steam supply system also includes: a water storage flash pipe 21; further, the water storage reheat and cooling system also includes: a first circulation return pipe 32, a second circulation return pipe 34 and a third circulation return pipe 37; further, the compression steam supply and expansion cooling and temperature reduction test system also includes: a steam inlet pipe 41, a steam exhaust pipe 43, an expander steam outlet pipe 47, a condensation subcooling pipe 49, a subcooling outlet pipe 52, a make-up water preheating pipe 64 and a make-up water inlet pipe 68; further, the compressor make-up water system also includes: a compressor make-up water pipe 73; further, a plurality of temperature sensors, a plurality of pressure sensors, and a plurality of flow meters are respectively arranged in the flash steam supply system, the water storage reheat and cooling system, the compression steam supply and expansion cooling and temperature reduction test system and the compressor make-up water system and are used to measure and feedback temperature information, pressure information and flow information.

[0062] According to an intelligent testing system for water working medium compressor based on energy balance according to an embodiment of the utility model, Figure 1As shown, the hot water storage tank 13 is equipped with a first temperature sensor 801 and a first pressure sensor 802, and the first temperature sensor 801 and the first pressure sensor 802 are used to measure the temperature information and pressure information of the liquid water in the hot water storage tank 13 respectively; further, the water storage flash evaporation pipe 21 is equipped with a second temperature sensor 811, a second pressure sensor 812 and a second flow meter 813, and the second temperature sensor 811, the second pressure sensor 812 and the second flow meter 813 are used to measure the temperature information, pressure information and flow information of the liquid water in the water storage flash evaporation pipe 21 respectively; further, the steam inlet pipe 41 is equipped with a third temperature sensor 821, a third pressure sensor 822 and a third The flow meter 823, the third temperature sensor 821, the third pressure sensor 822 and the third flow meter 823 are respectively used to measure the temperature information, pressure information and flow information of the water vapor in the steam inlet pipe 41; further, the compressor water supply pipe 73 is installed with a fourth temperature sensor 831, a fourth pressure sensor 832 and a fourth flow meter 833, the fourth temperature sensor 831, the fourth pressure sensor 832 and the fourth flow meter 833 are respectively used to measure the temperature information, pressure information and flow information of the liquid water in the compressor water supply pipe 73; further, the steam exhaust pipe 43 is installed with a fifth temperature sensor 841, a fifth pressure sensor 842 and a fifth flow meter 843, the fifth temperature sensor The first circulating water return pipe 32 is provided with a sixth temperature sensor 851, a sixth pressure sensor 852 and a sixth flow meter 853, which are used to measure the temperature information, pressure information and flow information of the liquid water in the first circulating water return pipe 32; the second circulating water return pipe 34 is provided with a seventh temperature sensor 861, a seventh pressure sensor 862 ... They are used to measure the temperature information and pressure information of the liquid water in the second circulation return pipe 34 respectively; further, an eighth temperature sensor 871 and an eighth pressure sensor 872 are installed on the third circulation return pipe 37, and the eighth temperature sensor 871 and the eighth pressure sensor 872 are used to measure the temperature information and pressure information of the liquid water in the third circulation return pipe 37 respectively; further, a ninth temperature sensor 881, a ninth pressure sensor 882 and a ninth flow meter 883 are installed on the expander steam outlet pipe 47, and the ninth temperature sensor 881, the ninth pressure sensor 882 and the ninth flow meter 883 are used to measure the temperature information, pressure information and flow information of the water vapor in the expander steam outlet pipe 47 respectively;Further, a tenth temperature sensor 891 and a tenth pressure sensor 892 are installed on the condensation supercooling pipe 49, and the tenth temperature sensor 891 and the tenth pressure sensor 892 are used to measure the temperature information and the pressure information of the liquid water in the condensation supercooling pipe 49 respectively; further, an eleventh temperature sensor 901, an eleventh pressure sensor 902 and an eleventh flow meter 903 are installed on the supercooling outlet pipe 52, and the eleventh temperature sensor 901, the eleventh pressure sensor 902 and the eleventh flow meter 903 are used to measure the temperature information, the pressure information and the flow information of the liquid water in the supercooling outlet pipe 52 respectively; further Step 1, the water supply preheating pipe 64 is equipped with a twelfth temperature sensor 911 and a twelfth pressure sensor 912, which are used to measure the temperature information and pressure information of the liquid water in the water supply preheating pipe 64; further, the water supply inlet pipe 68 is equipped with a thirteenth temperature sensor 921, a thirteenth pressure sensor 922 and a thirteenth flow meter 923, which are used to measure the temperature information, pressure information and flow information of the liquid water supply in the water supply inlet pipe 68. ;

[0063] In summary, according to the intelligent testing system for water-working fluid compressor based on energy balance of the utility model, a reasonable matching of heat between the steam generating end and the steam condensing end is achieved through the thermal balance within the system itself, and the energy consumption in the system is reduced as much as possible through its own thermal balance, so that the entire testing process is in the lowest energy consumption state; thereby, the testing system has the advantages of higher energy utilization and better energy-saving effect.

[0064] According to the second aspect of the utility model, the water working medium compressor intelligent testing method based on energy balance is applied to any one of the water working medium compressor intelligent testing systems based on energy balance in the first aspect; Figure 1 As shown, before the test starts, the heat pump heating system works first, and the external supplementary water flows through the water tank supplementary pipe 11 and flows through the first stop valve 12 into the hot water storage tank 13; the intelligent controller 80 controls the operation of the heat pump unit 10, and continuously heats the water working medium in the hot water storage tank 13 to a predetermined test temperature through the heat pump unit condenser 101.

[0065] Furthermore, at the beginning of the test, the flash steam supply system and the water storage reheat and cooling system work simultaneously, and the water working medium in the hot water storage tank 13 flows through the water storage flash pipe 21, passes through the water storage circulation pump 23, the first one-way valve 24 and the flash valve 25, and enters the flash spray pipe 27 in the flash tank 26; the pressure is reduced in the flash spray pipe 27 to flash out steam and saturated water, and the low-temperature saturated water after flashing in the flash tank 26 flows through the first circulation return pipe 32, the second circulation return pipe 34 and the third circulation return pipe 37 respectively through the fifth stop valve 30, the condensing heat exchanger 33 and the sixth stop valve 38, and is sent back to the hot water storage tank 13 by the circulation return pump 31 to complete the cycle.

[0066] Furthermore, if Figure 1 As shown, in the condensing heat exchanger 33, the saturated water from the flash tank 26 is heated by the water vapor from the expansion generator 46 to form high-temperature saturated water, and in the air-cooled radiator 36, the high-temperature saturated water from the condensing heat exchanger 33 is cooled by the gas blown in by the cooling fan 35 to form low-temperature saturated water. Furthermore, the temperature in the hot water storage tank 13 is controlled by the condensing heat exchanger 33 and the heating effect and the cooling effect of the cooling fan 35 and the air-cooled radiator 36.

[0067] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

[0068] Furthermore, if Figure 1As shown, when the compression steam supply and expansion cooling test system is working, the low-temperature and low-pressure water vapor in the flash tank 26 is sucked and compressed by the tested water vapor compressor 42 through the steam inlet pipe 41, and the generated high-temperature and high-pressure water vapor flows through the steam exhaust pipe 43 through the second one-way valve 44 and flows into the electromagnetic heater 45; it should be noted that it is further heated in the electromagnetic heater 45, so that the temperature of the discharged water vapor appears to be overheated. Furthermore, after being heated in the electromagnetic heater 45, the high-temperature and high-pressure water vapor flows into the expansion generator 46 through the steam exhaust pipe 43 to generate electricity. The high-temperature and high-pressure water vapor Converted into low-temperature and low-pressure water vapor. It should be noted that the high-temperature and high-pressure water vapor expands in the expansion generator 46 to generate electricity, converting the thermal energy of the high-temperature and high-pressure water vapor into electrical energy. At this time, the temperature and pressure of the high-temperature and high-pressure water vapor are reduced to form low-temperature and low-pressure water vapor; further, the low-temperature and low-pressure water vapor flows into the condensing heat exchanger 33 through the expansion machine steam outlet pipe 47, condenses and releases heat in the condensing heat exchanger 33 to form condensate, and heats the saturated water from the flash tank 26. The condensate of the low-temperature and low-pressure water vapor flows through the condensation supercooling pipe 49, passes through the first visible tube 48 and the seventh stop valve 50, and enters the condensate supercooler 51. Furthermore, it can be observed in the first visual tube 48 whether the water vapor is completely condensed into liquid water working medium. The condensate is further cooled by further heat release in the condensate supercooler 51 to achieve further condensation and supercooling. Finally, the completely liquid water working medium flows through the supercooling outlet pipe 52 through the second visual tube 53 and flows into the condensate metering water tank 54. The state of the condensate can be further observed and confirmed in the second visual tube 53. The condensate is collected in the condensate metering water tank 54 and the amount of the condensate is measured by the electromagnetic meter 55. The amount of condensate measured by the electromagnetic meter 55 will be transmitted to the intelligent controller 80 in time. Finally, the mass flow rate of the exhaust gas of the eleventh stop valve 62 of the measured equipment is measured by the amount of condensate. The condensate metering water tank 54 is also equipped with a metering water tank exhaust. The eighth stop valve 56 and the ninth stop valve 58 are respectively arranged on the pipe 57 and the metering water tank discharge pipe 59. The eighth stop valve 56 can be opened to reduce the pressure in the condensate metering water tank 54. The ninth stop valve 58 can be opened to discharge the measured condensate through the metering water tank discharge pipe 59. At the same time, the make-up water is connected to the make-up water preheating pipe 64 through the external make-up water pipe 63. It can be mixed with the condensate from the condensate metering water tank 54 or used alone. It is then sent to the condensate supercooler 51 by the make-up water pump 65 to absorb heat and heat up. Further, the condensate in the condensate supercooler 51 is cooled to a supercooled state. Then the make-up water flows through the make-up water inlet pipe 68 through the third one-way valve 67 and the thirteenth stop valve 69 into the hot water storage tank 13 to form a cycle.

[0069] In the description of the present invention, a first feature “above”, “over” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0070] Furthermore, when the compressor water replenishment system is working, the fourteenth stop valve 72 is opened, and the water working medium from the outside flows through the compressor water replenishment pipe 73, passes through the fourteenth stop valve 72, and is sent into the compression chamber of the measured water vapor compressor by the compressor water replenishment pump 71; thereby achieving water replenishment.

[0071] Furthermore, during the test of the water vapor compressor, the intelligent testing and control system is always in working condition, monitoring and reading the temperature, pressure and flow values ​​from various measuring points in the test system. Through parameter monitoring, not only the suction and exhaust flow of the water vapor compressor can be measured, but also the speed of the cooling fan 35 and the start and stop of the heat pump unit 10 can be controlled to achieve thermal balance in the system. At the same time, according to the power generated by the expansion generator 46 and the power consumption in the system, the power in the system is reasonably matched to achieve energy balance of heat and power in the entire test system.

[0072] Further, after the system runs stably, the intelligent controller 80 can read the values ​​of the third temperature sensor 821, the third pressure sensor 822 and the third flow meter 823 as the state value of the water vapor compressor suction, and obtain the first suction flow value; further, the intelligent controller 80 can read the values ​​of the fifth temperature sensor 841, the fifth pressure sensor 842 and the fifth flow meter 843 as the state value of the water vapor compressor exhaust, and obtain the first exhaust flow value. It should be noted that because the compressor exhaust is in a single-phase state of overheating, the measured first exhaust flow value is stable and reliable; further, the intelligent controller 80 can read the values ​​of the fourth temperature sensor 831, the fourth pressure sensor 832 and the fourth flow meter 833 as the state value of the water vapor compressor water replenishment, and obtain the first water replenishment flow value. It should be noted that because the compressor water replenishment is in a liquid single-phase state, the measured first replenishment flow value is stable and reliable. The water flow value is stable and reliable; further, the intelligent controller 80 can read the values ​​of the tenth temperature sensor 891, the tenth pressure sensor 892 and the eleventh temperature sensor 901, the eleventh pressure sensor 902, and the eleventh flow meter 903, and obtain the state of the water medium entering the condensate supercooler 51 and flowing out of the condensate supercooler 51, and can obtain the second exhaust flow value. At this time, the water medium flowing out of the condensate supercooler 51 is in a supercooled single-phase state, and its measured flow value is also accurate and reliable. At the same time, the condensate in 54 can be measured by the electromagnetic meter 55 to obtain a third exhaust flow value. The first exhaust flow value, the second exhaust flow value and the third exhaust flow value can be compared and verified to verify the reliability and accuracy of the measured exhaust flow value. The second intake flow can be obtained by subtracting the first water replenishment flow value from the obtained accurate exhaust flow, and compared with the first intake flow to verify, thereby achieving the reliability and accuracy of the intake flow value.

[0073] Further, through the intelligent control of the intelligent controller 80, the heat balance in the test system can be achieved; specifically, the intelligent controller 80 controls the amount and speed of the gas blown into the cooling fan 35 according to the temperature, pressure and flow conditions measured by the sixth temperature sensor 851, the sixth pressure sensor 852, the sixth flowmeter 853 and the seventh temperature sensor 861, the seventh pressure sensor 862 and the eighth temperature sensor 871, the eighth pressure sensor 872 to control the temperature of the saturated water flowing into the hot water storage tank 13, thereby controlling the water temperature in the hot water storage tank 13. It should be noted that if the water temperature in the hot water storage tank 13 is higher than the temperature required for the test during the test, the intelligent controller 80 needs to control the cooling fan 35 to increase the heat dissipation of the air-cooled radiator 36 and reduce the water temperature in the hot water storage tank 13. During the test, if the temperature in the hot water storage tank 13 decreases, the intelligent controller 80 is required to control the cooling fan 35 to reduce the heat dissipation of the air-cooled radiator 36 to increase the water temperature in the hot water storage tank 13. When the cooling fan 35 is reduced to the lowest level and stops, if the temperature in the hot water storage tank 13 is still lower than the temperature required for the test, the intelligent controller 80 is required to control the heat pump unit 10 to start up, and continue to heat the hot water storage tank 13 through the heat pump unit condenser 101 to increase the water temperature in the hot water storage tank 13.

[0074] Furthermore, the expansion generator 46 is used to recover the heat energy in the test system to generate electricity, and the intelligent controller 80 is used to match the power in the test system. Specifically, according to the power generated by the expansion generator 46 and the power consumption in the system, the intelligent controller 80 will reasonably match the power in the system, fully utilize the power generated by the expansion generator 46, and reduce the additional power consumption of the test system as much as possible.

[0075] Furthermore, for the test system of the water vapor compressor, the water vapor compressor is directly applied to the test system with water vapor as the working fluid. By adjusting the temperature and state of the hot water in the hot water storage tank 13, the test of the water vapor compressor under different working conditions can be met, and the performance of the water vapor compressor can be tested in a wide range of working conditions.

[0076] Furthermore, in the prior art, the test system fully realizes the energy cascade recovery and utilization of the high-temperature and high-pressure water vapor at the exhaust end of the compressor through the energy balance within the system itself, thereby minimizing the additional energy consumption; it should be noted that the water vapor compressor 42 under test is itself a high-energy-consuming device, which increases the energy consumption in the test system, causing the heat generated at the exhaust end of the test system to be far greater than the heat required by the intake end of the system. If only heat balance is performed, there will be a lot of heat at the exhaust end that cannot be recovered and needs to be dissipated through the radiator, which is very wasteful. The test system first recovers the high-grade energy of high-temperature and high-pressure water vapor through the expansion generator 46 for power generation, converting excess heat into electricity for supplying the tested water vapor compressor 42 and the heat pump unit 10, thereby reducing the power consumption in the system; further, the medium-grade heat of the low-temperature and low-pressure water vapor is recovered through the condensing heat exchanger 33 to heat the circulating water at the gas supply end of the test system, thereby compensating for the heat lost at the steam supply end due to the generation of steam; further, the condensate supercooler 51 is used to preheat the supplementary water, making full use of the characteristics of the low-temperature condensate to supplement the water quality and heat loss in the hot water storage tank 13; the use of the condensing heat exchanger 33 and the condensate supercooler 51 achieves the heat balance between the steam supply end and the steam use end.

[0077] Furthermore, after achieving a reasonable match between the heat of the steam supply end and the steam use end, after the system is initially put into operation, there is no need for additional heating to provide heat inside the system. At the same time, the heat increase caused by the power consumption of the steam compressor is fully utilized, the energy loss in the system is reduced as much as possible, and the energy balance in the system is achieved.

[0078] Furthermore, when the expansion generator 46 cannot use up the excess heat at the steam-consuming end, the heat recovered by the condensing heat exchanger 33 and the condensate supercooler 51 will exceed the heat required by the steam supply end, which can be further cooled and dissipated by the cooling fan 35; if the expansion generator 46 is used too much, the heat recovered by the condensing heat exchanger 33 and the condensate supercooler 51 is insufficient to meet the heat required by the steam supply end, which can be further heated by the heat pump unit 10.

[0079] Furthermore, in this test system, the measurement of the compressor suction flow and exhaust flow is not only multi-faceted, but also intelligently compared and processed; further, the exhaust flow has three different measurement methods, which can be mutually verified by the fifth flow meter 843, the eleventh flow meter 903 and the electromagnetic meter 55 to ensure the accuracy of the compressor exhaust flow. Specifically, first, in the first flow measurement process, the electromagnetic heater 45 is used to ensure that the water vapor is in a single-phase superheated state, so that when it flows through the flow meter, the accuracy of the water vapor flow measured by the flow meter is guaranteed; the second method is to measure the flow of the supercooled liquid. Compared with the gaseous water vapor, the flow of liquid water can be stably measured. By measuring the water flow of the supercooled liquid in the supercooled water outlet pipe 52, the compressor exhaust flow can be obtained, which can be compared and calculated with the flow measured by the first method; the third method is to measure the volume and mass of the final condensate. The mass of the condensate accumulated in the condensate metering water tank 54 for a period of time can be measured by the electromagnetic meter 55 to obtain the corresponding flow. In this way, by using these three methods, the problem of inaccurate measurement of the exhaust flow of the water vapor compressor can be effectively solved; at the same time, through the state parameter table of water vapor coupled in the intelligent controller 80, it should be noted that the fifth flow meter 843 and the eleventh flow meter 903 can be either a volume flow meter or a mass flow meter. Further, the state parameters of the fifth temperature sensor 841 and the fifth pressure sensor 842 and the state parameters of the eleventh temperature sensor 901 and the eleventh temperature sensor 901 are measured by the intelligent controller 80, and the density of water vapor is called to convert between the two. It should be noted that due to the existence of the intelligent controller 80, when actually displaying the exhaust flow of the water vapor compressor, two different modes of volume and mass flow can be displayed.

[0080] Specifically, there are two different ways to measure the intake flow. The first is to use the fourth pressure sensor 823 to directly measure through a flow meter. The second is to subtract the compressor water make-up mass flow measured by the fourth flow meter 833 from the compressor exhaust mass flow measured by the above three methods after mutual verification to obtain the compressor intake mass flow. Furthermore, the verification of these two methods also ensures the reliability of the compressor intake flow. At the same time, the fourth pressure sensor 832 and the fourth flow meter 833 can be either volume flow meters or mass flow meters. The state parameters of the third temperature sensor 821 and the third pressure sensor 822 and the state parameters of the fourth temperature sensor 831 and the fourth pressure sensor 832 can be measured by the intelligent controller 80, and the density of water vapor can be called to convert between the two. It should be noted that due to the existence of the intelligent controller 80, when the water vapor compressor intake flow is actually displayed, two different modes of volume and mass flow can be displayed.

[0081] In summary, the intelligent testing method for a water working medium compressor based on energy balance according to the utility model has the advantages of making the energy utilization rate of the testing system higher and the energy saving effect better.

[0082] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0083] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An intelligent test system for water working fluid compressor based on energy balance, characterized in that: include: Heat pump heating system, flash steam supply system, water storage reheat and cooling system, compression steam supply and expansion cooling and temperature reduction test system, compressor water supply system and intelligent testing and control system; the heat pump heating system is coupled with the flash steam supply system and the water storage reheat and cooling system respectively through a hot water storage tank; the compression steam supply and expansion cooling and temperature reduction test system is coupled with the flash steam supply system and the water storage reheat and cooling system respectively through a flash tank; the flash steam supply system and the water storage reheat and cooling system are coupled respectively through the hot water storage tank and the flash tank; the compression steam supply and expansion cooling and temperature reduction test system and the compressor water supply system are coupled through the tested water vapor compressor; The heat pump heating system comprises: a heat pump unit, a heat pump unit condenser and a hot water storage tank. The heat pump unit and the heat pump unit condenser are connected in a closed loop, and the heat pump unit condenser is arranged in the hot water storage tank; the flash steam supply system comprises: a flash tank and a flash water spray pipe, and the flash water spray pipe is arranged in the flash tank and sprays the water working medium into the flash tank; the water storage reheat and cooling system comprises: a condensing heat exchanger, an air-cooled radiator and a cooling fan, the condensing heat exchanger is connected to the air-cooled radiator, and the cooling fan is used to heat the air The radiator dissipates heat and cools down the temperature; the compression steam supply and expansion cooling test system includes: a condensate supercooler, a condensate metering water tank and an electromagnetic meter, the condensate supercooler is connected to the condensate metering water tank, and the electromagnetic meter is arranged in the condensate metering water tank; the compressor water supply system includes: a water vapor compressor under test and a compressor water supply pump, the water vapor compressor under test is connected to the compressor water supply pump; the intelligent testing and control system includes: an intelligent controller, and the intelligent controller is used to control the test system.

2. The intelligent testing system for water working fluid compressor based on energy balance according to claim 1 is characterized in that: It also includes multiple temperature sensors, multiple pressure sensors and multiple flow meters; the multiple temperature sensors are used to detect temperature information, the multiple pressure sensors are used to detect pressure information, and the multiple flow meters are used to detect flow information. The temperature information, the pressure information and the flow information are transmitted to the intelligent controller in real time.

3. The intelligent testing system for water working medium compressor based on energy balance according to claim 2 is characterized in that: The compression steam supply and expansion cooling test system also includes: an electromagnetic heater, which is arranged downstream of the exhaust end of the tested steam compressor and is used to heat the high-temperature and high-pressure steam from the tested steam compressor to a superheated state.

4. The intelligent testing system for water working medium compressor based on energy balance according to claim 3 is characterized in that: The compression steam supply and expansion cooling test system also includes: an expansion generator, which is arranged between the electromagnetic heater and the condensing heat exchanger, and is used to recover the heat energy in the test system to generate electricity; the intelligent controller is used to distribute the electricity generated by the expansion generator to supply the tested water vapor compressor and the heat pump unit, and the condensed water amount information measured by the electromagnetic meter is transmitted to the intelligent controller.

5. The intelligent testing system for water working medium compressor based on energy balance according to claim 4 is characterized in that: The flash steam supply system also includes: a water storage flash pipe; the water storage reheat and cooling system also includes: a first circulation return pipe, a second circulation return pipe and a third circulation return pipe; the compression steam supply and expansion cooling and temperature reduction test system also includes: a steam inlet pipe, a steam exhaust pipe, an expander steam outlet pipe, a condenser subcooling pipe, a subcooling outlet pipe, a make-up water preheating pipe and a make-up water inlet pipe; the compressor make-up water system also includes: a compressor make-up water pipe; the multiple temperature sensors, the multiple pressure sensors, and the multiple flow meters are respectively arranged in the flash steam supply system, the water storage reheat and cooling system, the compression steam supply and expansion cooling and temperature reduction test system and the compressor make-up water system and are used to measure feedback temperature information, pressure information and flow information.

6. The water working medium compressor intelligent testing system based on energy balance according to claim 5 is characterized in that: The hot water storage tank is provided with a first temperature sensor and a first pressure sensor, wherein the first temperature sensor and the first pressure sensor are used to measure the temperature information and the pressure information of the liquid water in the hot water storage tank respectively; The water storage flash evaporation pipe is installed with a second temperature sensor, a second pressure sensor and a second flow meter, and the second temperature sensor, the second pressure sensor and the second flow meter are used to measure the temperature information, pressure information and flow information of the liquid water in the water storage flash evaporation pipe respectively.

7. The intelligent testing system for water working medium compressor based on energy balance according to claim 5 is characterized in that: A third temperature sensor, a third pressure sensor and a third flow meter are installed on the steam intake pipe, and the third temperature sensor, the third pressure sensor and the third flow meter are used to measure the temperature information, pressure information and flow information of the water vapor in the steam intake pipe respectively.

8. The intelligent testing system for water working medium compressor based on energy balance according to claim 7 is characterized in that: A fourth temperature sensor, a fourth pressure sensor and a fourth flow meter are installed on the compressor water supply pipe, and the fourth temperature sensor, the fourth pressure sensor and the fourth flow meter are used to measure the temperature information, pressure information and flow information of the liquid water in the compressor water supply pipe respectively; A fifth temperature sensor, a fifth pressure sensor and a fifth flow meter are installed on the steam exhaust pipe, and the fifth temperature sensor, the fifth pressure sensor and the fifth flow meter are used to measure the temperature information, pressure information and flow information of the water vapor in the steam exhaust pipe respectively.

9. The intelligent testing system for water working medium compressor based on energy balance according to claim 8 is characterized in that: A sixth temperature sensor, a sixth pressure sensor and a sixth flow meter are installed on the first circulation return pipe, and the sixth temperature sensor, the sixth pressure sensor and the sixth flow meter are respectively used to measure the temperature information, pressure information and flow information of the liquid water in the first circulation return pipe; a seventh temperature sensor and a seventh pressure sensor are installed on the second circulation return pipe, and the seventh temperature sensor and the seventh pressure sensor are respectively used to measure the temperature information and pressure information of the liquid water in the second circulation return pipe; an eighth temperature sensor and an eighth pressure sensor are installed on the third circulation return pipe, and the eighth temperature sensor and the eighth pressure sensor are respectively used to measure the temperature information and pressure information of the liquid water in the third circulation return pipe.

10. The intelligent testing system for water working medium compressor based on energy balance according to claim 9 is characterized in that: The expander steam outlet pipe is equipped with a ninth temperature sensor, a ninth pressure sensor and a ninth flow meter, and the ninth temperature sensor, the ninth pressure sensor and the ninth flow meter are respectively used to measure the temperature information, pressure information and flow information of the water vapor in the expander steam outlet pipe; the condenser subcooling pipe is equipped with a tenth temperature sensor and a tenth pressure sensor, and the tenth temperature sensor and the tenth pressure sensor are respectively used to measure the temperature information and pressure information of the liquid water in the condenser subcooling pipe; the subcooling water outlet pipe is equipped with an eleventh temperature sensor, an eleventh pressure sensor and an eleventh flow meter, and the eleventh temperature sensor, the eleventh pressure sensor and the eleventh flow meter are respectively used to measure the temperature information, pressure information and flow information of the liquid water in the subcooling water outlet pipe; A twelfth temperature sensor and a twelfth pressure sensor are installed on the water replenishment preheating pipe, and the twelfth temperature sensor and the twelfth pressure sensor are respectively used to measure the temperature information and the pressure information of the liquid water in the water replenishment preheating pipe; a thirteenth temperature sensor, a thirteenth pressure sensor and a thirteenth flow meter are installed on the water replenishment inlet pipe, and the thirteenth temperature sensor, the thirteenth pressure sensor and the thirteenth flow meter are respectively used to measure the temperature information, the pressure information and the flow information of the liquid replenishment water in the water replenishment inlet pipe.

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