Water vapor compressor testing system

Abstract

The utility model relates to the field of water vapor compressors, in particular to a water vapor compressor testing system, which comprises a flash evaporation device, a heat pump device and a water vapor compressor, and is characterized in that a water vapor buffer tank is arranged at the downstream of the water vapor compressor to perform gas-liquid separation on an output medium of the water vapor compressor; the metering water tank is connected with the output end of the water vapor buffer tank through a pipeline, cooling water passing through the cooling device can be collected by the metering water tank through cooling of the cooling device, the mass flow of the water vapor compressor can be obtained by calculating the mass of water in the metering water tank, and then the heat insulation efficiency of the water vapor compressor is evaluated. The system can simply and accurately measure the mass flow rate and the adiabatic efficiency of the water vapor compressor, the problem of inaccurate measurement of the flow meter caused by fluctuation of the flow rate and the temperature in the water vapor compression process is solved, research and development engineers can more accurately identify the comprehensive performance of the water vapor compressor conveniently, and the technical development of the water vapor compressor is promoted.

Description

Technical Field

[0001] The present application relates to the field of steam compressors and relates to a steam compressor test system. Background Art

[0002] The working medium of a steam compressor is steam. During the operation of the steam compressor, liquid water needs to be sprayed into the compression chamber to play a role in cooling. Due to the inability to accurately control the water injection volume, there is some liquid water at the exhaust port of the compressor. Moreover, the power of the steam compressor is relatively large, generally above 100 kW. During the compression process, the pressure and temperature in the compression chamber cause fluctuations in the exhaust gas flow rate of the compressor. Generally, a gas flow meter cannot accurately measure the steam flow rate. In order to evaluate the adiabatic efficiency of the steam compressor, the accuracy of the flow data is crucial. In the prior art, the power of the steam compressor is measured by the calculation method of enthalpy difference. However, during the operation of the steam compressor, the temperature fluctuates greatly, and the temperature is related to the volume flow rate of the steam compressor, so the mass flow rate of the steam compressor cannot be correctly calculated, and there is a large deviation in the calculated adiabatic efficiency of the steam compressor. Summary of the Utility Model

[0003] In order to solve or at least partially solve the above technical problems, the present application provides a steam compressor test system, including:

[0004] A heat pump device, including a first heat exchanger;

[0005] A flash evaporation device, including a flash evaporation tank and a flash evaporation circulation pipeline connecting the flash evaporation tank to form a loop, and the flash evaporation circulation pipeline is connected to the heat exchange side of the first heat exchanger;

[0006] A steam compressor, connected to the output end of the flash evaporation tank through a first pipeline;

[0007] A water replenishing device, respectively connected to the inner cavity of the steam compressor and the flash evaporation circulation pipeline to replenish water to the inner cavity of the steam compressor and the flash evaporation circulation pipeline;

[0008] A steam buffer tank, connected to the output end of the steam compressor through a second pipeline, for gas-liquid separation of the output medium of the steam compressor;

[0009] A metering water tank, connected to the output end of the steam buffer tank through a third pipeline, and a cooling device is provided on the third pipeline, and the cooling device is used to cool the steam separated by the steam buffer tank, and the metering water tank is used to collect and measure the cooling water passing through the cooling device.

[0010] Optionally, the third pipeline includes a first branch pipe and a second branch pipe. The cooling device includes a cooler provided on the first branch pipe and a second heat exchanger provided on the second branch pipe. The heat exchange side of the second heat exchanger is connected to the flash evaporation circulation pipeline.

[0011] Optionally, the flash evaporation circulation pipeline includes a flash evaporation circulation pipe connecting the flash evaporation tank and a circulation water pump provided on the flash evaporation circulation pipe. The flash evaporation circulation pipe is sequentially connected to the circulation water pump, the second heat exchanger, and the first heat exchanger. A first temperature and pressure detector is also provided on the flash evaporation circulation pipe downstream of the first heat exchanger.

[0012] Optionally, a first electric valve is provided on the first branch pipe, and a second electric valve is provided on the second branch pipe. The opening degrees of the first electric valve and the second electric valve respond to the detected temperature of the first temperature and pressure detector.

[0013] Optionally, the water replenishing device includes a condensate tank and a water storage tank. The condensate tank is connected to the steam buffer tank through a first water pipe. The water storage tank is connected to the condensate tank through a second water pipe via a first centrifugal pump, and is connected to the inner cavity of the steam compressor and the flash evaporation circulation pipeline through a third water pipe and a fourth water pipe respectively via a second centrifugal pump.

[0014] Optionally, a third electric valve is provided on the first water pipe, and a second liquid level gauge is provided in the steam buffer tank. The opening degree of the third electric valve responds to the water level in the steam buffer tank detected by the second liquid level gauge.

[0015] Optionally, a fourth electric valve is provided on the fourth water pipe, and a first liquid level gauge is provided in the flash evaporation tank. The opening degree of the fourth electric valve responds to the water level in the flash evaporation tank detected by the first liquid level gauge.

[0016] Optionally, the water replenishing device further includes an external water replenishing pipe, and the external water replenishing pipe is connected to the second water pipe through a water purifier to replenish water into the water storage tank.

[0017] Optionally, a second temperature and pressure detector is provided on the first pipeline, and a third temperature and pressure detector is provided on the second pipeline. The second temperature and pressure detector and the third temperature and pressure detector are respectively used to detect the steam temperature and pressure values of the upstream and downstream pipelines of the steam compressor.

[0018] Optionally, a fourth temperature and pressure detector is provided on the third water pipe, and the power of the second centrifugal pump responds to the pressure detection value of the fourth temperature and pressure detector.

[0019] The steam compressor test system provided by this application has a flash evaporation cycle pipeline of a flash evaporation device connected to a first heat exchanger of a heat pump device. The steam compressor is connected to the output end of the flash evaporation tank through a first pipeline. A water replenishing device is respectively connected to the inner cavity of the steam compressor and the flash evaporation cycle pipeline. A steam buffer tank is arranged on a second pipeline downstream of the steam compressor to perform gas-liquid separation on the output medium of the steam compressor. A metering water tank is connected to the output end of the steam buffer tank through a third pipeline. After being cooled by a cooling device, the metering water tank can collect and measure the cooling water passing through the cooling device. By calculating the mass of water in the metering water tank, the mass flow rate of the steam compressor can be obtained, and then the adiabatic efficiency of the steam compressor can be evaluated. This system can simply and accurately measure the mass flow rate and adiabatic efficiency of the steam compressor, making up for the problem that the flowmeter measurement is inaccurate due to the fluctuations of flow rate and temperature during the steam compression process, facilitating R & D engineers to more accurately identify the comprehensive performance of the steam compressor and promoting the technological development of the steam compressor. Brief Description of the Drawings

[0020] In order to more clearly illustrate the implementation manners of this application, the relevant drawings will be briefly introduced below. It can be understood that the drawings described below are only used to illustrate some implementation manners of this application, and those of ordinary skill in the art can also obtain many other technical features and connection relationships not mentioned in this text based on these drawings.

[0021] Figure 1 It is a schematic structural connection diagram of the steam compressor test system of this application;

[0022] Description of the Reference Numerals:

[0023] 1. Metering water tank; 2. Condensate water tank; 3. Heat pump compressor; 4. Evaporator; 5. Throttle valve; 6. Cooler; 7. First centrifugal pump; 8. First heat exchanger; 9. Second heat exchanger; 10. Circulating water pump; 11. Flash evaporation tank; 12. Water purifier; 13. Second centrifugal pump; 14. Water storage tank; 15. Steam compressor; 16. Steam buffer tank; 17. First stop valve; 18. First pressure gauge; 19. First thermometer; 20. First electric valve; 21. Second electric valve; 22. Second stop valve; 23. Third electric valve; 24. Flowmeter; 25. Second pressure gauge; 26. Second thermometer; 27. Fourth pressure gauge; 28. Fourth electric valve; 29. Third thermometer; 30. Third pressure gauge; 31. First level gauge; 32. Second level gauge;

[0024] R. Heat pump circulation pipeline; D. Flash evaporation circulation pipeline; C1. First pipeline; C2. Second pipeline; C3. Third pipeline; S1. First water pipe; S2. Second water pipe; S3. Third water pipe; S4. Fourth water pipe; S31. First branch pipe; S32. Second branch pipe. Detailed implementation mode

[0025] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0026] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0027] In the description of the embodiments of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0028] The technical solutions in the embodiments of the present application will be described in detail below with reference to the accompanying drawings in the embodiments of the present application.

[0029] As Figure 1 shown, this embodiment provides a steam compressor test system, which includes a heat pump device, a flash evaporation device, a steam compressor 15, and a water replenishing device.

[0030] As Figure 1 shown, the heat pump device is a heat pump cycle system, and the heat pump cycle system includes a heat pump cycle loop formed by sequentially connecting an evaporator 4, a heat pump compressor 3, a first heat exchanger 8, and a throttle valve 5 through a heat pump cycle pipeline R.

[0031] The flash evaporation device includes a flash evaporation tank 11 and a flash evaporation circulation pipeline that connects the flash evaporation tank 11 to form a loop. The flash evaporation circulation pipeline includes a flash evaporation circulation pipeline D. The flash evaporation circulation pipeline D extends from the lower end outlet of the flash evaporation tank 11 and is sequentially connected to a circulation water pump 10, a heat exchanger, and then to the inlet of the flash evaporation tank 11 to form a loop. The heat exchanger can be the first heat exchanger 8 of the heat pump device. The flash evaporation circulation pipeline D is connected to the heat exchange side of the first heat exchanger 8. The heat pump device heats the water working medium in the flash evaporation circulation pipeline D through the first heat exchanger 8 to promote the flash evaporation operation of the flash evaporation tank 11.

[0032] As Figure 1 shown, the steam output end of the flash evaporation tank 11 is connected to a steam compressor 15 through a first pipeline C1, and the output end of the steam compressor 15 is connected to a steam buffer tank 16 through a second pipeline C2. The steam compressor 15 heats and pressurizes the steam generated by the flash evaporation tank 11 to generate high-temperature and high-pressure steam. The steam buffer tank 16 receives the high-temperature and high-pressure steam and buffers the high-temperature and high-pressure steam.

[0033] In this embodiment, the water replenishing device is connected to the steam compressor 15 and can spray water into the inner cavity of the steam compressor 15 to cool it down. The liquid water and high-temperature and high-pressure steam in the steam compressor 15 enter the steam buffer tank 16, and the steam buffer tank 16 can separate the liquid water and high-temperature and high-pressure steam.

[0034] The water replenishing device in this embodiment is also connected to the flash evaporation circulation pipeline to replenish the water working medium for the flash evaporation circulation pipeline.

[0035] This embodiment also has a metering water tank 1. The metering water tank 1 is connected to the output end of the steam buffer tank 16 through a third pipeline C3. A cooling device is provided on the third pipeline C3. The cooling device is used to cool the steam separated by the steam buffer tank 16, and the metering water tank 1 is used to collect and meter the cooling water passing through the cooling device.

[0036] In this embodiment, by providing the steam buffer tank 16 and the metering water tank 1, the steam buffer tank 16 can separate the liquid water in the high-temperature and high-pressure steam output by the steam compressor 15, avoiding the influence of the liquid water on the test of the steam compressor 15. The steam buffer tank 16 delivers the steam to the cooling device, and the cooling device cools the steam to form water and stores it in the metering water tank 1. By calculating the mass of the water in the metering water tank 1, the mass flow rate of the steam compressor 15 can be measured.

[0037] According to the mass flow rate of the steam compressor 15 and the detection results of the temperature and pressure at the outlet of the compressor, the volumetric flow rate qv of the compressor can be deduced. According to the records in Chapter 4 of "Screw Compressors - Theory, Design and Applications" by Xing Ziwen:

[0038] "If the compressed gas can be treated as an ideal gas, the isentropic adiabatic power P of the compressor ad can be calculated by the following formula:

[0039]

[0040] In the formula:

[0041] P ad is the isentropic adiabatic power of the compressor;

[0042] P s is the suction pressure of the compressor;

[0043] P d is the discharge pressure of the compressor;

[0044] k is the isentropic exponent of the compressed gas;

[0045] q v is the actual volume flow rate of the compressor."

[0046] From this, the isentropic adiabatic power Pad of the compressor can be calculated. By comparing it with the power of the actual motor, the adiabatic efficiency of the steam compressor 15 can be calculated.

[0047] This system can simply and accurately measure the mass flow rate and adiabatic efficiency of the steam compressor, making up for the problem that the flow meter cannot accurately measure due to the fluctuations of the flow rate and temperature during the steam compression process, facilitating the R & D engineers to more accurately identify the comprehensive performance of the steam compressor and promoting the technological development of the steam compressor.

[0048] As Figure 1 shown, the third pipeline C3 in this embodiment is divided into a first branch pipe C31 and a second branch pipe C32. Among them, the cooling device on the first branch pipe C31 is a cooler 6, and a first electric valve 20 is provided upstream of the cooler 6 on the first branch pipe C31; the cooling device on the second branch pipe C32 is a second heat exchanger 9, and a second electric valve 21 is provided upstream of the second heat exchanger 9 on the second branch pipe C32. The first electric valve 20 and the second electric valve 21 serve as the switches of the first branch pipe C31 and the second branch pipe C32 respectively to control the opening and closing of the first branch pipe C31 and the second branch pipe C32.

[0049] In this embodiment, the heat exchanger mentioned above can also be the second heat exchanger 9. The circulating pipeline D is sequentially connected to a circulating water pump 10, the second heat exchanger 9 and the first heat exchanger 8. A first temperature and pressure detector is also provided on the circulating pipeline D downstream of the first heat exchanger 8. The first temperature and pressure detector includes a first pressure gauge 18 and a first thermometer 19. The first pressure gauge 18 and the first thermometer 19 are used to detect the pressure and temperature of the water working medium in the circulating pipeline D after passing through the first heat exchanger 8.

[0050] In one embodiment, the first electric valve 20 and the second electric valve 21 are respectively associated with the first pressure gauge 18 and the first thermometer 19. For example, the first electric valve 20 and the second electric valve 21 can adjust their opening degrees according to the temperature value detected by the first thermometer 19 to adjust the flow rates of the first branch pipe C31 and the second branch pipe C32, so as to achieve different degrees of heat exchange effects for the cooler 6 and the second heat exchanger 9.

[0051] In this embodiment, a second temperature and pressure detector is provided on the first pipeline C1. The second temperature and pressure detector includes a second pressure gauge 25 and a second thermometer 26; a third temperature and pressure detector is provided on the second pipeline C2. The third temperature and pressure detector includes a third thermometer 29 and a third pressure gauge 30. The second pressure gauge 25, the second thermometer 26, the third thermometer 29 and the third pressure gauge 30 are respectively used to detect the steam temperature and pressure values of the upstream and downstream pipelines of the steam compressor 15, so as to effectively detect the operating data of the steam compressor 15.

[0052] A flowmeter 24 is provided on the third pipeline C3 for detecting the steam flow rate output by the steam buffer tank 16.

[0053] As Figure 1 shown, the water replenishing device of this embodiment includes a condensate tank 2 and a water storage tank 14. The condensate tank 2 is connected to the steam buffer tank 16 through a first water pipe S1. The water storage tank 14 is connected to the condensate tank 2 through a second water pipe S2 via a first centrifugal pump 7. The water storage tank 14 is connected to the inner cavity of the steam compressor 15 through a third water pipe S3 via a second centrifugal pump 13, and the water storage tank 14 is connected to the flash evaporation circulation pipeline D through a fourth water pipe S4 via a second centrifugal pump 13.

[0054] After gas-liquid separation in the steam buffer tank 16, the liquid water is transported to the condensate tank 2 through the first water pipe S1. The condensate tank 2 transports the condensate water to the water storage tank 14 through the first centrifugal pump 7. The water storage tank 14 inputs the water into the inner cavity of the steam compressor 15 in the form of spraying through the second centrifugal pump 13 for cooling, thereby realizing the recycling of water in sequence.

[0055] As Figure 1 shown, a third electric valve 23 is provided on the first water pipe S1. A second liquid level gauge 32 is provided inside the steam buffer tank 16. The third electric valve 23 is electrically connected to the second liquid level gauge 32. The opening degree of the third electric valve 23 can be adjusted according to the water level in the steam buffer tank 16 detected by the second liquid level gauge 32.

[0056] A first stop valve 17 is provided on the second water pipe S2. When the water storage tank 14 needs to be replenished with water, the first stop valve 17 and the first centrifugal pump 7 are opened, and the water in the condensate tank 2 can be transported to the water storage tank 14 to achieve recycling.

[0057] In this embodiment, a fourth electric valve 28 is provided on the fourth water pipe S4, and a first liquid level gauge 31 is provided inside the flash tank 11. The fourth electric valve 28 is electrically connected to the first liquid level gauge 31, and the opening degree of the fourth electric valve 28 can be adjusted according to the water level in the flash tank 11 detected by the first liquid level gauge 31. When the first liquid level gauge 31 detects a decrease in the water level in the flash tank 11, the fourth electric valve 28 opens, and the water in the water storage tank 14 is replenished into the steam circulation pipeline D upstream of the circulating water pump 10 through the fourth water pipe S4, thereby ensuring the continuous operation of the flash evaporation device.

[0058] In this embodiment, a fourth temperature and pressure detector is provided on the third water pipe S3. The fourth temperature and pressure detector can be a fourth pressure gauge 27, and the fourth pressure gauge 27 is electrically connected to the second centrifugal pump 13. The fourth pressure gauge 27 is used to detect the pressure of the water sprayed into the steam compressor 15. When the detected value of the fourth pressure gauge 27 is small, it indicates that the pressure of the water sprayed into the steam compressor 15 by the second centrifugal pump 13 is insufficient. At this time, the power of the second centrifugal pump 13 is increased to ensure that the pressure of the water sprayed into the steam compressor 15 reaches the normal level.

[0059] In one embodiment, as Figure 1 shown, the water replenishing device further has an external water replenishing pipe. The external water replenishing pipe is connected to external tap water and is connected to the second water pipe S2 through a second stop valve 22 and a water purifier 12. When the water volume inside the system is insufficient, the external water replenishing pipe is activated, the second stop valve 22 is opened, and the tap water is purified by the water purifier 12 and then replenished into the water storage tank 14 to supplement the water source for the entire water replenishing device.

[0060] The working process of the steam compressor test system of this embodiment is as follows:

[0061] Taking the design condition of the steam compressor 15 as 3 t / hr and the exhaust saturation temperature as 160 °C as an example.

[0062] In the figure, the blue arrow represents the heat pump cycle of the heat pump device, the green arrow represents the running route of the liquid water, and the red arrow represents the running route of the steam.

[0063] As Figure 1 shown, before the steam compressor 15 is started, in the heat pump device, the refrigerant is heated and pressurized by the heat pump compressor 3 and then enters the first heat exchanger 8, transfers heat to the circulating water, and the cooled refrigerant enters the evaporator 4 after being cooled and depressurized by the throttle valve 5. The refrigerant absorbs heat from the environment and becomes a saturated gas and enters the suction port of the heat pump compressor 3 to complete the heat pump cycle.

[0064] The start of the heat pump is controlled by the first thermometer 19, and the temperature of the first thermometer 19 is set to 115 °C. During the test of the steam compressor 15, the heat pump device still starts and stops according to the logic that the first thermometer 19 is set to 115 °C.

[0065] Of course, the temperature setting of the first thermometer 19 is not limited to 115°C. In this embodiment, the first thermometer 19 can adjust different temperature values according to the test requirements of the steam compressor 15.

[0066] The high-temperature water at 115°C at the outlet of the first heat exchanger 8 enters the flash tank 11 and undergoes a flashing phenomenon. Part of it becomes high-temperature steam at 110°C and flows out from the top of the flash tank 11 into the first pipeline C1. After passing through the second pressure gauge 25 and the second thermometer 26, it enters the suction port of the steam compressor 15. The water that has not flashed in the flash tank 11 passes through the flash circulation pipeline D at the bottom of the flash tank 11 and enters the circulation water pump 10. The flow rate of the circulation water pump 10 is 320 m 3 / hr. After the circulating water is boosted in pressure, it enters the second heat exchanger 9. The heat flow rate of the second heat exchanger 9 is 2158 kW. Then it passes through the first heat exchanger 8 and finally returns to the flash tank 11 to complete the entire water cycle.

[0067] The steam is heated and pressurized by the steam compressor 15 and then enters the second pipeline C2. After passing through the third thermometer 29 and the third pressure gauge 30, it enters the steam buffer tank 16. In the steam buffer tank 16, the steam completes gas-liquid separation. A part of the saturated steam at the outlet of the steam buffer tank 16 enters the cooler 6 through the first branch pipe C31 and is directly condensed into water and enters the metering water tank 1. The remaining part enters the second heat exchanger 9 through the second branch pipe C32 to exchange heat with the circulating water and is condensed into water and enters the metering water tank 1.

[0068] In one embodiment, the flow rate ratio of the steam entering the cooler 6 is 2%, the heat flow rate of the cooler 6 is 55 kW, and the heat flow rate of the second heat exchanger 9 is 2158 kW. The second heat exchanger 9 fully preheats the water medium in the flash circulation pipeline D to improve the flashing effect of the flashing device.

[0069] As Figure 1 shown, during the compression process of the steam compressor 15, water needs to be sprayed into the compression chamber for cooling. Since the amount of sprayed water cannot be accurately controlled, generally, an excessive amount of water is sprayed during operation, and the spraying flow rate is greater than 0.3 t / hr. There is some liquid water at the exhaust port of the steam compressor 15. The high-temperature steam containing liquid water enters the steam buffer tank 16, and gas-liquid separation is achieved by the steam buffer tank 16. When the liquid level in the steam buffer tank 16 rises to a certain value, the second liquid level gauge 32 controls the third electric valve 23 to open, and the high-pressure steam sends the liquid water in the steam buffer tank 16 to the condensate tank 2. The steam buffer tank 16 is sent to the condensate tank 2 through the first water pipe S1, and the condensate tank 2 is then pumped into the water storage tank 14 by the first centrifugal pump 7 to achieve the recycling of condensate water.

[0070] When the test system runs for a long time and the liquid level in the flash tank 11 is relatively low, the first liquid level gauge 31 will control the fourth electric valve 28 to open, and supplement the water in the water storage tank 14 into the flash tank 11, so as to control the water volume balance of the whole system and meet the long-term operation of the system. When the flash tank 11 starts to replenish water, the fourth pressure gauge 27 will monitor the water spraying pressure of the steam compressor 15. When the water spraying pressure of the steam compressor 15 is relatively low, the second centrifugal pump 13 will adjust its power according to the fourth pressure gauge 27. The lower the pressure of the fourth pressure gauge 27, the greater the power of the second centrifugal pump 13. When the whole system cannot meet the water volume demand, open the second stop valve 22, and the tap water will enter the water storage tank 14 after being filtered by the water purifier 12 to meet the water volume balance of the whole system.

[0071] In the embodiments of the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0072] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic representations of the above terms do 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. In addition, without conflict, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A steam compressor test system, characterized in that, Comprising: A heat pump device, including a first heat exchanger (8); A flash evaporation device, including a flash evaporation tank (11) and a flash evaporation circulation pipeline connecting the flash evaporation tank (11) to form a loop, and the flash evaporation circulation pipeline is connected to the heat exchange side of the first heat exchanger (8); A steam compressor (15), connected to the output end of the flash evaporation tank (11) through a first pipeline (C1); A water replenishing device, respectively connected to the inner cavity of the steam compressor (15) and the flash evaporation circulation pipeline to replenish water to the inner cavity of the steam compressor (15) and the flash evaporation circulation pipeline; A steam buffer tank (16), connected to the output end of the steam compressor (15) through a second pipeline (C2), for gas-liquid separation of the output medium of the steam compressor (15); A metering water tank (1), connected to the output end of the steam buffer tank (16) through a third pipeline (C3), and a cooling device is provided on the third pipeline (C3), and the cooling device is used to cool the steam separated by the steam buffer tank (16), and the metering water tank (1) is used to collect and meter the cooling water passing through the cooling device.

2. The steam compressor test system according to claim 1, wherein The third pipeline (C3) includes a first branch pipe (C31) and a second branch pipe (C32), the cooling device includes a cooler (6) provided on the first branch pipe (C31) and a second heat exchanger (9) provided on the second branch pipe (C32), and the heat exchange side of the second heat exchanger (9) is connected to the flash evaporation circulation pipeline.

3. The steam compressor test system according to claim 2, characterized in that The flash evaporation circulation pipeline includes a flash evaporation circulation pipe (D) connecting the flash evaporation tank (11) and a circulating water pump (10) provided on the flash evaporation circulation pipe (D), the flash evaporation circulation pipe (D) is sequentially connected to the circulating water pump (10), the second heat exchanger (9) and the first heat exchanger (8), and a first temperature and pressure detector is further provided on the flash evaporation circulation pipe (D) downstream of the first heat exchanger (8).

4. The steam compressor test system according to claim 3, wherein A first electric valve (20) is provided on the first branch pipe (C31), a second electric valve (21) is provided on the second branch pipe (C32), and the opening degrees of the first electric valve (20) and the second electric valve (21) respond to the detected temperature of the first temperature and pressure detector.

5. The steam compressor test system according to any one of claims 1-4, characterized in that, The water replenishing device includes a condensate tank (2) and a water storage tank (14), the condensate tank (2) is connected to the steam buffer tank (16) through a first water pipe (S1), the water storage tank (14) is connected to the condensate tank (2) through a second water pipe (S2) via a first centrifugal pump (7), and is respectively connected to the inner cavity of the steam compressor (15) and the flash evaporation circulation pipeline through a third water pipe (S3) and a fourth water pipe (S4) via a second centrifugal pump (13).

6. The steam compressor testing system according to claim 5, wherein, A third electric valve (23) is provided on the first water pipe (S1), a second liquid level gauge (32) is provided in the steam buffer tank (16), and the opening degree of the third electric valve (23) responds to the water level in the steam buffer tank (16) detected by the second liquid level gauge (32).

7. The steam compressor test system according to claim 6, characterized in that, A fourth electric valve (28) is provided on the fourth water pipe (S4), and a first liquid level gauge (31) is provided in the flash tank (11). The opening degree of the fourth electric valve (28) responds to the water level in the flash tank (11) detected by the first liquid level gauge (31).

8. The steam compressor test system according to claim 5, characterized in that, The water replenishing device further includes an external water replenishing pipe, and the external water replenishing pipe is connected to the second water pipe (S2) through a water purifier (12) to replenish water into the water storage tank (14).

9. The steam compressor test system according to claim 5, characterized in that, A second temperature and pressure detector is provided on the first pipeline (C1), and a third temperature and pressure detector is provided on the second pipeline (C2). The second temperature and pressure detector and the third temperature and pressure detector are respectively used to detect the steam temperature and pressure values of the upstream and downstream pipelines of the steam compressor (15).

10. The steam compressor test system according to claim 5, characterized in that, A fourth temperature and pressure detector is provided on the third water pipe (S3), and the power of the second centrifugal pump (13) responds to the pressure detection value of the fourth temperature and pressure detector.

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