Water vapor compressor and refrigerating system

Abstract

The embodiment of the utility model discloses a water vapor compressor and a refrigerating system. The water vapor compressor comprises a multi-stage compression part and a gas-liquid separator. The spraying system comprises a water pump, a control valve and a nozzle, the water pump is communicated with the control valve, and the control valve is communicated with the nozzle; an inlet pipeline of the cooling pipeline is communicated with the compression part and the control valve, an outlet pipeline of the cooling pipeline is communicated with an inlet pipeline of the gas-liquid separator, a liquid outlet pipeline of the gas-liquid separator is communicated with the control valve through the water pump, the nozzle is communicated with the cooling pipeline, and an exhaust pipeline of the gas-liquid separator is communicated with a next-stage compression part of the compression part. The technical problem that the energy efficiency improvement of the steam compressor is limited due to the fact that more steam cannot be generated due to heat loss in the steam compressor is solved.

Description

Technical Field

[0001] The present application relates to the technical field of vapor compressors, and in particular, to a steam compressor and a refrigeration system. Background Art

[0002] In recent years, with the continuous development of vapor compressor technology, vapor compressors have been widely used in daily life and industry, such as in air conditioners, industrial refrigeration systems, etc. In a multi-stage vapor compressor, the exhaust temperature of the vapor after compression by each stage of the vapor compression module is relatively high and the superheat is relatively large. Therefore, external water supply is used for spraying to cool the inter-stage exhaust. After the cooling treatment, the unevaporated water in the sprayed water is directly discharged, resulting in heat loss in the multi-stage vapor compressor and the inability to generate more vapor, thus limiting the improvement of the energy efficiency of the vapor compressor. Summary of the Utility Model

[0003] An embodiment of the present application provides a steam compressor and a refrigeration system, which can solve the technical problem that the unevaporated water in the sprayed water after the cooling treatment is directly discharged, resulting in heat loss in the multi-stage vapor compressor and the inability to generate more vapor, thus limiting the improvement of the energy efficiency of the vapor compressor.

[0004] In a first aspect, an embodiment of the present application provides a steam compressor, which includes:

[0005] A multi-stage compression part and a gas-liquid separator;

[0006] A spray system, which includes a water pump, a control valve and a nozzle. The water pump is connected to the control valve, and the control valve is connected to the nozzle;

[0007] A cooling pipeline, the inlet pipelines of the cooling pipeline are respectively connected to the compression part and the control valve, the outlet pipeline of the cooling pipeline is connected to the inlet pipeline of the gas-liquid separator, the liquid outlet pipeline of the gas-liquid separator is connected to the control valve through the water pump, the nozzle is connected to the cooling pipeline, and the exhaust pipeline of the gas-liquid separator is connected to the next-stage compression part of the compression part.

[0008] Optionally, the steam compressor further includes a temperature sensor and a pressure sensor, and the temperature sensor and the pressure sensor are respectively arranged in the exhaust pipeline;

[0009] Wherein, the temperature sensor is used to detect the gas temperature in the exhaust pipeline, and the pressure sensor is used to detect the gas pressure in the exhaust pipeline.

[0010] Optionally, a first liquid level sensor and a second liquid level sensor are installed in the water storage cavity of the gas-liquid separator;

[0011] Wherein, the first liquid level sensor is used to detect whether the water storage level height in the water storage chamber of the gas-liquid separator is greater than or equal to a first preset upper limit height, and the second liquid level sensor is used to detect whether the water storage level height in the water storage chamber of the gas-liquid separator is less than or equal to a first preset lower limit height.

[0012] Optionally, the steam compressor further includes a first water replenishing control valve, and the gas-liquid separator is communicated with the first water replenishing control valve;

[0013] Wherein, when the water storage level height in the water storage chamber of the gas-liquid separator is greater than or equal to the first preset upper limit height, the first water replenishing control valve is in a water supply stop state; when the water storage level height in the water storage chamber of the gas-liquid separator is less than the first preset lower limit height, the first water replenishing control valve is in a water supply state.

[0014] Optionally, the steam compressor further includes a water tank, the water inlet of the water tank is communicated with the liquid outlet pipe of the gas-liquid separator, and the water outlet of the water tank is communicated with the water pump.

[0015] Optionally, a third liquid level sensor and a fourth liquid level sensor are installed in the water storage chamber of the water tank;

[0016] Wherein, the third liquid level sensor is used to detect whether the water storage level height in the water storage chamber of the water tank is greater than or equal to a second preset upper limit height, and the fourth liquid level sensor is used to detect whether the water storage level height in the water storage chamber of the water tank is less than or equal to a second preset lower limit height.

[0017] Optionally, the steam compressor further includes a second water replenishing control valve, and the water tank is communicated with the second water replenishing control valve;

[0018] Wherein, when the water tank level height of the water tank is greater than or equal to the second preset upper limit height, the second water replenishing control valve is in a water supply stop state; when the water tank level height of the water tank is less than the second preset lower limit height, the second water replenishing control valve is in a water supply state.

[0019] Optionally, the spraying system further includes a water replenishing component and a heat energy recovery component. The first liquid inlet of the heat energy recovery component is communicated with the liquid outlet pipe, the second liquid inlet of the heat energy recovery component is communicated with the water replenishing component, and the liquid outlet corresponding to the second liquid inlet in the heat energy recovery component is communicated with the water pump.

[0020] Optionally, the heat energy recovery component is a heat exchanger.

[0021] Fourthly, an embodiment of the present application provides a refrigeration system, and the refrigeration system includes the steam compressor described in any one of the above.

[0022] The beneficial effects brought by the technical solutions provided by some embodiments of the embodiments of the present application at least include: by arranging a spray system between the compression part of the steam compressor and the next-stage compression part, spray cooling is realized for the superheated steam discharged from the compression part and not yet entering the next-stage compression part. At the same time, a gas-liquid separator is used to separate the gas-liquid mixture after spray cooling between stages. Since the liquid outlet pipe of the gas-liquid separator is connected to the cooling pipe through a water pump, a control valve and a nozzle, the liquid remaining after spray cooling can be reused by spraying again, and the superheated steam discharged from the compression part and not yet entering the next-stage compression part is spray-cooled again. The heat taken away by spray cooling is all retained in the system of the steam compressor, which can effectively increase the evaporation ratio of the liquid in the steam compressor. And the temperature of the liquid remaining after spray cooling will increase, further increasing the evaporation ratio of the liquid in the steam compressor, so that the exhaust pipe of the gas-liquid separator can convey more steam to the next-stage compression part of the compression part. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] Figure 1 It is a schematic structural diagram of a steam compressor provided by an embodiment of the present application;

[0025] Figure 2 It is a schematic flowchart of an operation method of a steam compressor provided by an embodiment of the present application;

[0026] Figure 3 It is a schematic flowchart of regulating the liquid flow rate of a control valve provided by an embodiment of the present application;

[0027] Figure 4 It is a schematic flowchart of performing water storage liquid level height adjustment processing provided by an embodiment of the present application;

[0028] Figure 5 It is a schematic flowchart of performing another water storage liquid level height adjustment processing provided by an embodiment of the present application;

[0029] Figure 6 It is a schematic structural diagram of another steam compressor provided by an embodiment of the present application;

[0030] Figure 7 A schematic flow chart for adjusting the water level height of a water tank provided by an embodiment of the present application;

[0031] Figure 8 Another schematic flow chart for adjusting the water level height of a water tank provided by an embodiment of the present application;

[0032] Figure 9 A schematic flow chart for water supply processing of a water pump provided by an embodiment of the present application;

[0033] Figure 10 A schematic structural diagram of another steam compressor provided by an embodiment of the present application;

[0034] Figure 11 A schematic structural diagram of an electronic device provided by an embodiment of the present application.

[0035] Steam compressor 2000; Spraying system 2100; Gas-liquid separator 2200; Water pump 2110; Control valve 2120; Cooling pipeline 2800; Nozzle 2130; Inlet pipeline 2131; Compression part 2300; Control valve 2120; Outlet pipeline 2132; Inlet pipeline 2210; Gas-liquid separator 2200; Liquid outlet pipeline 2220; Exhaust pipeline 2230; Next-stage compression part 2400; First inlet pipeline 2131A; Second inlet pipeline 2131B; First water replenishment control valve 2500; Second water replenishment control valve 2900; First liquid level sensor 2201; Second liquid level sensor 2202; Water tank 2600; Water inlet 2610; Water outlet 2620; Steam trap 2700; Third liquid level sensor 2601; Fourth liquid level sensor 2602; Water replenishment component 2140; Heat energy recovery component 2150; First liquid inlet 2151; Second liquid inlet 2152; Liquid outlet 2153; Electronic device 1100; Processor 1101; Network interface 1104; User interface 1103; Memory 1105; Communication bus 1102. Detailed implementation manners

[0036] To make the features and advantages of the embodiments of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope protected by the embodiments of the present application.

[0037] In related technologies, a multi-stage steam compressor includes multi-stage compression sections. Each stage of the compression section is used to pressurize and heat the steam. The steam is pressurized and heated successively through the multi-stage compression sections, so as to obtain the required steam pressure by step-by-step pressurization.

[0038] Generally, between a compression section and the next compression section corresponding to this compression section, that is, between stages, the inter-stage exhaust temperature corresponding to the water vapor compression is relatively high and the superheat degree is relatively large. If the exhaust is not cooled, it will cause the inlet temperature of the compression section of the subsequent stage of the water vapor multi-stage compressor to be high, resulting in an increase in compression power consumption. In addition, too high an exhaust temperature also puts higher material requirements on components such as the gearbox and seals of the centrifugal compressor, increasing the material cost. Therefore, it is necessary to cool the superheated steam at the outlet of each stage.

[0039] Spray cooling is an efficient cooling method. It uses spray water to absorb the heat of the superheated steam and then vaporize and evaporate, so that the superheated steam between stages is reduced to saturated or nearly saturated steam. This method converts the sensible heat of the superheated steam into latent heat and retains it in the steam, thereby reducing the compression power consumption, increasing the outlet steam volume, and improving the system energy efficiency. When the spray water between stages is completely vaporized, theoretically the following formula is satisfied: m1h1 + m w h w =h2(m w + m1); where, the flow rate of the superheated steam is m1, the heat of the superheated steam is h1, the flow rate of the spray water is m w , the heat of the spray water is h w , the flow rate of the steam cooled to saturated or nearly saturated state is m w + m1, and the heat of the steam cooled to saturated or nearly saturated state is h2.

[0040] However, when the inter-stage distance of the multi-stage steam compressor is limited, it is impossible to achieve complete vaporization of the spray water through the spray water, making it difficult for the spray water to completely evaporate, resulting in the phenomenon of liquid-carrying steam impacting the impeller and reducing its service life. To ensure the stable operation of the multi-stage steam compressor, a steam-water separator can be added between stages before the inter-stage spray enters the next compression section. During the mixing process of the low-temperature spray water and the superheated steam, the spray first absorbs the heat of the superheated steam to become saturated water, and then the saturated water absorbs the heat of the superheated steam and evaporates. That is, the water drained by the steam-water separator is often high-temperature saturated water. If the unevaporated high-temperature saturated water in the spray water is directly discharged through the steam-water separator, this part of the heat cannot be retained in the system to generate more steam, thus limiting the improvement of the system energy efficiency.

[0041] To solve the above technical problems, an embodiment of the present application provides a steam compressor and a refrigeration system. The steam compressor includes: a multi-stage compression section and a gas-liquid separator; a spray system, which includes a water pump, a control valve, and a nozzle. The water pump is connected to the control valve, and the control valve is connected to the nozzle; a cooling pipeline, the inlet pipelines of the cooling pipeline are respectively connected to the compression section and the control valve, the outlet pipeline of the cooling pipeline is connected to the inlet pipeline of the gas-liquid separator, the liquid outlet pipeline of the gas-liquid separator is connected to the control valve through the water pump, the nozzle is connected to the cooling pipeline, and the exhaust pipeline of the gas-liquid separator is connected to the next-stage compression section of the compression section.

[0042] In the embodiment provided by the present application, by arranging a spray system between the compression section and the next-stage compression section of the steam compressor, spray cooling is realized for the superheated steam discharged from the compression section and not yet entering the next-stage compression section. At the same time, the gas-liquid separator is used to separate the gas-liquid mixture after spray cooling. Since the liquid outlet pipeline of the gas-liquid separator is connected to the cooling pipeline through the water pump, the control valve, and the nozzle, the liquid remaining after spray cooling can be reused for spraying, and the superheated steam discharged from the compression section and not yet entering the next-stage compression section can be spray-cooled again. The heat carried away by spray cooling is all retained in the system of the steam compressor, which can effectively increase the evaporation ratio of the liquid in the steam compressor. And the temperature of the liquid remaining after spray cooling will increase, further increasing the evaporation ratio of the liquid in the steam compressor, so that the exhaust pipeline of the gas-liquid separator can convey more steam to the next-stage compression section of the compression section. At the same time, by detecting the gas temperature and gas pressure of the exhaust pipeline, the gas superheat degree in the exhaust pipeline of the gas-liquid separator is determined, and then the liquid flow rate of the control valve is adjusted by using the gas superheat degree and the preset superheat degree range, so as to adjust the spray water flow rate, and further realize the recovery of the heat in the unvaporized liquid and the unvaporized liquid during spraying while effectively cooling the superheated steam discharged from the compression section.

[0043] Please refer to Figure 1 , Figure 1 which is a schematic structural diagram of a steam compressor provided by an embodiment of the present application. Please refer to Figure 2 , Figure 2 which is a schematic flow diagram of an operation method of a steam compressor provided by an embodiment of the present application. The execution subject of the embodiment of the present application can be a steam compressor that executes the inter-stage cooling method of the steam compressor, or a processor in the steam compressor that executes the inter-stage cooling method of the steam compressor, or an inter-stage cooling service in the steam compressor that executes the inter-stage cooling method of the steam compressor. For the convenience of description, the following takes the execution subject as the processor in the steam compressor as an example to introduce the specific execution process of the inter-stage cooling method of the steam compressor.

[0044] The steam compressor 2000 includes a multi-stage compression section, a spray system 2100, a gas-liquid separator 2200, and a cooling pipeline 2800. The spray system 2100 includes a water pump 2110, a control valve 2120, and a nozzle 2130. The water pump 2110 is connected to the control valve 2120, and the control valve 2120 is connected to the nozzle 2130. The inlet pipeline 2131 of the cooling pipeline 2800 is respectively connected to the compression section 2300 and the control valve 2120. The outlet pipeline 2132 of the cooling pipeline 2800 is connected to the inlet pipeline 2210 of the gas-liquid separator 2200. The liquid outlet pipeline 2220 of the gas-liquid separator 2200 is connected to the control valve 2120 through the water pump 2110. The nozzle 2130 is connected to the cooling pipeline 2800. The exhaust pipeline 2230 of the gas-liquid separator 2200 is connected to the next-stage compression section 2400 of the compression section 2300. The inlet pipeline 2131 includes a first inlet pipeline 2131A and a second inlet pipeline 2131B.

[0045] The total number of stages of the compression section of the steam compressor 2000 can be 2 stages, 3 stages, 4 stages, and multiple stages, etc. Each stage of the compression section is used to pressurize and heat the steam. Through the multi-stage compression section, the steam is pressurized and heated in sequence, so as to obtain the required steam pressure by step-by-step pressurization. The gas-liquid separator 2200 is used to separate the gas-liquid mixture discharged from the outlet pipeline 2132 of the cooling pipeline 2800. The control valve 2120 is used to adjust the spray water flow rate delivered by the water pump 2110 to the cooling pipeline 2800 through the nozzle 2130. The cooling pipeline 2800 may also include a mixing pipe section connected to the control valve 2120. The nozzle 2130 is arranged in the mixing pipe section. Both the inlet pipeline 2131 and the outlet pipeline 2132 are connected to the mixing pipe section. The nozzle 2130 is used for spraying.

[0046] In the steam compressor 2000, the superheated steam first discharged from the compression section 2300 enters the cooling pipe 2800 through the first inlet pipe 2131A of the inlet pipe 2131 of the cooling pipe 2800. The water pump 2110, the control valve 2120 and the nozzle 2130 cooperate with each other to spray-cool the superheated steam entering the cooling pipe 2800. The gas-liquid mixture after the spray cooling treatment enters the gas-liquid separator 2200 through the inlet pipe 2210 of the gas-liquid separator 2200. The gas-liquid separator 2200 performs gas-liquid separation treatment on the gas-liquid mixture. The obtained steam is transported to the next-stage compression section 2400 of the compression section 2300 through the exhaust pipe 2230 of the gas-liquid separator 2200. The unvaporized liquid of the spray passes through the liquid outlet pipe 2220 of the gas-liquid separator 2200, the water pump 2110, the control valve 2120, the second inlet pipe 2131B and the nozzle 2130 to spray-cool the superheated steam in the cooling pipe 2800, thereby realizing the recovery of liquid and heat. In addition, a turbulence structure can be added in the mixed pipe section after spraying to promote the mixing and heat exchange between the high-temperature steam and the low-temperature spray water, so as to ensure that the temperature reduction target is achieved. Exemplarily, Figure 1 The dashed arrows in it can represent the flow direction of the steam, the dash-dotted lines can represent the flow direction of the steam-water mixture, and the solid arrows can represent the flow direction of the liquid water.

[0047] The steam compressor 2000 may further include a temperature sensor and a pressure sensor, which are respectively arranged in the exhaust pipe 2230. Among them, the temperature sensor is used to detect the gas temperature in the exhaust pipe 2230, and the pressure sensor is used to detect the gas pressure in the exhaust pipe 2230. The steam compressor 2000 may further include a controller. The temperature sensor and the pressure sensor are used to be electrically connected to the controller, so that the controller can obtain the gas temperature and gas pressure in the exhaust pipe 2230 from the temperature sensor and the pressure sensor and then perform corresponding control.

[0048] The operation method of the steam compressor includes:

[0049] S202: Detect the gas temperature and gas pressure in the exhaust pipe, and determine the gas superheat degree based on the gas temperature and gas pressure.

[0050] Among them, a temperature sensor and a pressure sensor can be arranged in the exhaust pipe 2230. The pressure sensor is such as Figure 1 the component P in and the temperature sensor is such as Figure 1The component T therein detects the gas temperature of the exhaust duct 2230 based on a temperature sensor and the gas pressure of the exhaust duct 2230 based on a pressure sensor. Then, the gas superheat degree is determined based on the gas temperature and the gas pressure. The gas superheat degree here is the temperature difference between the actual temperature of the gas (gas temperature) and the liquid-vapor phase change temperature of its phase change from the liquid phase to the gas phase. The liquid-vapor phase change temperature can be obtained by looking up a table or calculating based on the gas pressure and the corresponding liquid type. For example, when the gas pressure is 1 atmosphere, the liquid-vapor phase change temperature of water at this time is 100 °C.

[0051] After obtaining the gas temperature and the current liquid-vapor phase change temperature found through the gas pressure, the gas superheat degree is obtained by subtracting the gas temperature from the liquid-vapor phase change temperature.

[0052] S204: Obtain a preset superheat degree range for the exhaust duct, and adjust the liquid flow rate of the control valve based on the gas superheat degree and the preset superheat degree range.

[0053] Among them, the preset superheat degree range of the exhaust duct is set corresponding to the structure and component materials of the steam compressor 2000. When the superheat degree of the steam is within the preset superheat degree range, damage to the components in the steam compressor 2000 by high-temperature steam can be effectively avoided; when the superheat degree of the steam is greater than the maximum value of the preset superheat degree range, it may cause damage to the components in the steam compressor 2000 by high-temperature steam; when the superheat degree of the steam is less than the minimum value of the preset superheat degree range, it indicates that the spray system 2100 is over-cooled, which may affect the steam generation efficiency.

[0054] The preset superheat degree range can be [ΔTset - ε, ΔTset + ε], where ΔTset is the preset superheat degree, which can be 10 °C or other values set based on the structure and component materials of the steam compressor 2000, and ε represents the allowable control accuracy. For example, ε can be 0.5 °C, 1 °C, 2 °C, etc.

[0055] By comparing the gas superheat degree with the preset superheat degree range, it is judged whether the superheat degree of the steam is within the preset superheat degree range, and when the superheat degree of the steam is not within the preset superheat degree range, whether the superheat degree of the steam is greater than the maximum value or the minimum value of the preset superheat degree range. Then, the controller is used to adjust the control valve targeted to adjust the liquid flow rate corresponding to the spray water, and further adjust the cooling effect of the superheated steam discharged from the compression part 2300 in the cooling pipe, so as to realize the recovery of heat in the unvaporized liquid of the spray and the unvaporized liquid of the spray while effectively cooling the superheated steam discharged from the compression part 2300.

[0056] Since a gas-liquid separator 2200 is provided between the compression section 2300 and the next-stage compression section 2400 of the steam compressor provided in this application, when spray cooling is performed on the superheated steam entering the cooling pipe 2800 by the cooperation of the water pump 2110 and the control valve 2120, the spray water flow rate can be slightly excessive.

[0057] Specifically, when the spray water in the cooling pipe 2800 is completely vaporized, theoretically the following formula is satisfied: m a h a +m b h b =h c (m a +m b ); where the flow rate of the superheated steam discharged from the compression section 2300 is m a , the heat of the superheated steam discharged from the compression section 2300 is h a , the flow rate of the spray water is m b , the heat of the spray water is h b , the total flow rate of the spray water and the superheated steam discharged from the compression section 2300 after the spray water is completely vaporized and the mixed steam is cooled to a saturated or nearly saturated state steam is m a +m b , and the total heat of the spray water and the superheated steam discharged from the compression section 2300 after the spray water is completely vaporized and the mixed steam is cooled to a saturated or nearly saturated state steam is h c . The unit of the flow rate can be kg / s, and the unit of the heat can be KJ / kg. In the embodiment provided in this application, since a gas-liquid separator 2200 is provided between the compression section 2300 and the next-stage compression section 2400 of the steam compressor, the spray water flow rate can be slightly excessive, that is, the actual spray water flow rate m actual in the embodiment of this application should be controlled to be greater than m b , so as to enhance the heat exchange effect and the cooling effect.

[0058] In the embodiments provided by the present application, by arranging a spray system 2100 between the compression part 2300 and the next-stage compression part 2400 of the steam compressor 2000, spray cooling is realized for the superheated steam discharged from the compression part 2300 and not yet entering the next-stage compression part 2400. At the same time, a gas-liquid separator 2200 is used to separate the gas-liquid mixture after spray cooling. Since the liquid discharge pipe 2220 of the gas-liquid separator 2200 is connected to the cooling pipe 2800 through a water pump 2110, a control valve 2120 and a nozzle 2130, the liquid remaining after spray cooling can be reused for spraying again, and spray cooling is carried out again for the superheated steam discharged from the compression part 2300 and not yet entering the next-stage compression part 2400, so that the heat carried away by spray cooling is all retained in the system of the steam compressor 2000, the evaporation ratio of the liquid in the steam compressor 2000 can be effectively increased, and the temperature of the liquid remaining after spray cooling will rise, further increasing the evaporation ratio of the liquid in the steam compressor 2000, so that the exhaust pipe 2230 of the gas-liquid separator 2200 can convey more steam to the next-stage compression part 2400 of the compression part 2300. At the same time, by detecting the gas temperature and gas pressure of the exhaust pipe 2230, the gas superheat degree in the exhaust pipe 2230 of the gas-liquid separator 2200 is determined, and then the control valve 2120 is adjusted for liquid flow according to the gas superheat degree and the preset superheat degree range, so as to adjust the spray water flow, and further realize the recovery of the heat in the spray non-vaporized liquid and the spray non-vaporized liquid while effectively cooling the superheated steam discharged from the compression part 2300.

[0059] In other embodiments, when the heat of the spray non-vaporized liquid and the spray non-vaporized liquid is not recovered and external water supply is used for spray cooling, the theoretical thermodynamic process is as follows:

[0060] m in h in +m w h w =m out h out +m s h s ; where m in is the steam flow rate discharged from the compression part, h in is the steam heat discharged from the compression part, m w is the water flow rate of external water supply for spray cooling, h w is the water heat of external water supply for spray cooling, m out is the steam flow rate transported to the next-stage compression part of the compression part, h out is the steam flow rate transported to the next-stage compression part of the compression part, m s is the liquid flow rate of the spray non-vaporized liquid, h sis the liquid heat of the unvaporized liquid in the spray.

[0061] In the embodiments provided by the present application, when both the unvaporized liquid in the spray and the heat of the unvaporized liquid in the spray are recovered, the theoretical thermodynamic process is as follows:

[0062] m out’ h out’ = m in’ h in’ + m a’ h a’ , where, m out’ is the vapor flow rate delivered to the next-stage compression part of the compression part, h out’ is the vapor flow rate delivered to the next-stage compression part of the compression part, m in’ is the vapor flow rate discharged from the compression part, h in’ is the vapor heat discharged from the compression part, m a’ is the water flow rate for spray cooling by additional makeup water from the outside, h a’ is the water heat for spray cooling by additional makeup water from the outside. Since in the embodiments provided by the present application, when achieving the same temperature reduction target, the evaporation rate of the high-temperature spray formed after the recovery of the unvaporized liquid in the spray is higher, the outlet steam volume will be more, that is, m out’ is greater than m out .

[0063] In the embodiments provided by the present application, the liquid flow rate of the control valve is adjusted based on the gas superheat degree and the preset superheat degree range in S204, including:

[0064] Determine the superheat degree control type based on the gas superheat degree and the preset superheat degree range, and adopt the superheat degree control method corresponding to the superheat degree control type to adjust the liquid flow rate of the control valve.

[0065] Among them, the superheat degree control type can include three types, corresponding respectively to the gas superheat degree being within the preset superheat degree range, the gas superheat degree being greater than the maximum value of the preset superheat degree range, and the gas superheat degree being less than the minimum value of the preset superheat degree range.

[0066] When the superheat degree of the vapor is within the preset superheat degree range, the damage to the components in the steam compressor 2000 by the high-temperature vapor can be effectively avoided. At this time, the corresponding adjustment of the control valve 2120 can be not performed, that is, maintaining the current state; when the superheat degree of the vapor is greater than the maximum value of the preset superheat degree range, it may cause damage to the components in the steam compressor 2000 by the high-temperature vapor. At this time, the valve opening of the control valve 2120 can be increased to increase the liquid flow rate of the spray water; when the superheat degree of the vapor is less than the minimum value of the preset superheat degree range, it indicates that the cooling of the spray system 2100 is excessive, which may affect the vapor generation efficiency. At this time, the valve opening of the control valve 2120 can be reduced or closed to reduce the liquid flow rate of the spray water.

[0067] In the embodiments provided in the present application, the corresponding superheat control type is determined by using the gas superheat and the preset superheat range, so as to accurately adjust the liquid flow rate of the control valve by adopting the superheat control method corresponding to the superheat control type, and then effectively cool the superheated steam discharged from the self-compression part 2300.

[0068] Please refer to Figure 3 , Figure 3 which is a schematic flow chart for adjusting the liquid flow rate of the control valve provided in the embodiments of the present application. As Figure 3 shown, first, S302 determines the superheat control type based on the gas superheat and the preset superheat range. After that, the superheat control method corresponding to the superheat control type is used to adjust the liquid flow rate of the control valve. Specifically, using the superheat control method corresponding to the superheat control type to adjust the liquid flow rate of the control valve includes:

[0069] S304: When the gas superheat is greater than the maximum value of the preset superheat range, it is determined that the superheat control type is the first superheat control method, and the control valve is adjusted based on the first superheat control method to perform a liquid flow rate increasing process.

[0070] Among them, when the gas superheat is greater than the maximum value of the preset superheat range, the superheat control type is the first superheat control method. The first superheat control method is used to adjust the control valve 2120 to increase the valve opening corresponding to the control valve, and then perform a liquid flow rate increasing process, so as to increase the liquid flow rate of the spray water, improve the spray cooling effect, and then reduce the gas superheat.

[0071] S306: When the gas superheat is less than the minimum value of the preset superheat range, it is determined that the superheat control type is the second superheat control method, and the control valve is adjusted based on the second superheat control method to perform a liquid flow rate decreasing process.

[0072] Among them, when the gas superheat is less than the minimum value of the preset superheat range, the superheat control type is the second superheat control method. The second superheat control method is used to adjust the control valve 2120 to reduce the valve opening corresponding to the control valve 2120, and then perform a liquid flow rate decreasing process, so as to reduce the liquid flow rate of the spray water, weaken the spray cooling effect, and then increase the gas superheat.

[0073] S308: When the gas superheat is within the preset superheat range, it is determined that the superheat control type is the third superheat control method, and the adjustment of the control valve is stopped based on the third superheat control method.

[0074] Wherein, when the gas superheat degree is within a preset superheat degree range, the superheat degree control type is the third superheat degree control method, and the third superheat degree control method is used to maintain the current state of the control valve 2120, so that the gas superheat degree is always within the preset superheat degree range.

[0075] In the embodiment provided by the present application, when the superheat degree of the vapor is greater than the maximum value of the preset superheat degree range, it may cause damage to the components in the steam compressor 2000 by high-temperature steam. When the superheat degree of the vapor is less than the minimum value of the preset superheat degree range, it indicates that the spray system 2100 is over-cooled, which may affect the steam generation efficiency. Therefore, the corresponding superheat degree control type is determined by using the gas superheat degree and the preset superheat degree range, and then the liquid flow rate of the control valve 2120 is accurately adjusted by using the superheat degree control method corresponding to the superheat degree control type, so that the gas superheat degree obtained after the superheated steam discharged from the compression part 2300 is mixed with the spray can be within the preset superheat degree range, and then the superheated steam discharged from the compression part 2300 is effectively cooled.

[0076] Please continue to refer to Figure 1 , a first liquid level sensor 2201 and a second liquid level sensor 2202 are installed in the water storage cavity of the gas-liquid separator 2200; wherein, the first liquid level sensor 2201 is used to detect whether the water storage liquid level height in the water storage cavity of the gas-liquid separator 2200 is greater than or equal to a first preset upper limit height, and the second liquid level sensor 2202 is used to detect whether the water storage liquid level height in the water storage cavity of the gas-liquid separator 2200 is less than or equal to a first preset lower limit height.

[0077] Exemplarily, the first liquid level sensor 2201 can be set at a corresponding height position in the water storage cavity of the gas-liquid separator 2200 based on the first preset upper limit height, and the second liquid level sensor 2202 can be set at a corresponding height position in the water storage cavity of the gas-liquid separator 2200 based on the first preset lower limit height. In the water storage cavity, the height at which the first liquid level sensor 2201 is set is greater than the height at which the second liquid level sensor 2202 is set.

[0078] When the first liquid level sensor 2201 set at the corresponding height position detects liquid, it indicates that the water storage liquid level height of the liquid in the water storage cavity is greater than or equal to the first preset upper limit height; when the second liquid level sensor 2202 set at the corresponding height position does not detect liquid, it indicates that the water storage liquid level height of the liquid in the water storage cavity is less than the first preset lower limit height. When the second liquid level sensor 2202 detects liquid while the first liquid level sensor 2201 does not detect liquid, it indicates that the water storage liquid level height of the liquid in the water storage cavity is greater than or equal to the first preset lower limit height and less than the first preset upper limit height.

[0079] Such as Figure 1As shown, the steam compressor 2000 further includes a first water replenishment control valve 2500, and the gas-liquid separator 2200 is in communication with the first water replenishment control valve 2500. Among them, when the water storage level height in the water storage cavity of the gas-liquid separator 2200 is greater than or equal to the first preset upper limit height, the first water replenishment control valve 2500 is in a state of stopping water supply; when the water storage level height in the water storage cavity of the gas-liquid separator 2200 is less than the first preset lower limit height, the first water replenishment control valve 2500 is in a state of supplying water.

[0080] Exemplarily, the first liquid level sensor 2201 and the second liquid level sensor 2202 can be electrically connected to the controller, and the controller can determine the water storage level height in the water storage cavity of the gas-liquid separator 2200 based on the electrical signals transmitted by the first liquid level sensor 2201 and the second liquid level sensor 2202, and then control the first water replenishment control valve 2500. The first water replenishment control valve 2500 is used to be connected to the external water supply pipeline, and at the same time, the first water replenishment control valve 2500 is also connected to the water storage cavity of the gas-liquid separator 2200. When the first water replenishment control valve 2500 is in a state of stopping water supply, the first water replenishment control valve 2500 closes to stop supplying water to the water storage cavity of the gas-liquid separator 2200; when the first water replenishment control valve 2500 is in a state of supplying water, the first water replenishment control valve 2500 opens to supply water to the water storage cavity of the gas-liquid separator 2200.

[0081] When the water storage level height in the water storage cavity of the gas-liquid separator 2200 is greater than or equal to the first preset upper limit height, it indicates that the water storage level height in the water storage cavity of the gas-liquid separator 2200 is too high. At this time, the controller controls the first water replenishment control valve 2500 to be in a state of stopping water supply; when the water storage level height in the water storage cavity of the gas-liquid separator 2200 is less than the first preset lower limit height, it indicates that the water storage level height in the water storage cavity of the gas-liquid separator 2200 is too low. At this time, the controller controls the first water replenishment control valve 2500 to be in a state of supplying water.

[0082] Please refer to Figure 4 , Figure 4 which is a schematic flow chart of a process for adjusting the water storage level height provided by an embodiment of the present application. As Figure 4 shown, the operation method of the steam compressor further includes:

[0083] S402: Detect the water storage level height of the gas-liquid separator.

[0084] Among them, the bottom of the gas-liquid separator 2200 is a water storage cavity, the top of the gas-liquid separator 2200 is a gas cavity, the water storage cavity and the gas cavity are in communication with each other, the water storage cavity of the gas-liquid separator 2200 is in communication with the liquid outlet pipeline 2220 of the gas-liquid separator 2200, and the gas cavity of the gas-liquid separator 2200 is in communication with the exhaust pipeline 2230 of the gas-liquid separator 2200.

[0085] In the water storage chamber of the gas-liquid separator 2200, a first liquid level sensor 2201 and a second liquid level sensor 2202 may be installed. The first liquid level sensor 2201 is used to detect whether the water storage liquid level height in the water storage chamber of the gas-liquid separator 2200 is greater than or equal to a first preset upper limit height, and the second liquid level sensor 2202 is used to detect whether the water storage liquid level height in the water storage chamber of the gas-liquid separator 2200 is less than or equal to a first preset lower limit height.

[0086] S404: Obtain the first preset liquid level height range corresponding to the gas-liquid separator, determine the liquid level height control type based on the water storage liquid level height and the first preset liquid level height range, and perform water storage liquid level height adjustment processing based on the liquid level height control type.

[0087] Among them, the first preset liquid level height range includes a first preset upper limit height and a first preset lower limit height. The first preset upper limit height can be determined based on the set safety duration when the gas-liquid separator 2200 supplies water to the spray system 2100 at a set flow rate without external water replenishment. Specifically, the liquid mass or volume of the gas-liquid separator 2200 can be determined based on the product of the safety duration and the set flow rate, so as to determine the first preset upper limit height. At the same time, the first preset lower limit height of the gas-liquid separator 2200 can be determined based on the minimum pressure value at which the water pump 2110 avoids cavitation.

[0088] When the water storage liquid level height is greater than the first preset upper limit height of the first preset liquid level height range, it indicates that there is too much liquid in the gas-liquid separator 2200, and the adjustment of the water storage liquid level height can be stopped; when the water storage liquid level height is less than the first preset lower limit height of the first preset liquid level height range, it indicates that there is too little liquid in the gas-liquid separator 2200, and the water storage liquid level height can be adjusted to increase the water storage liquid level height to the first preset upper limit height or slightly greater than the first preset upper limit height. When the water storage liquid level height is within the first preset liquid level height range, the adjustment of the water storage liquid level height can be stopped, or the water storage liquid level height can be adjusted to continuously or intermittently increase the water storage liquid level height. When performing the water storage liquid level height adjustment processing, it can be adjusted based on the first water replenishment control valve 2500.

[0089] In the embodiment provided in the present application, the liquid level height control type is determined based on the water storage liquid level height and the first preset liquid level height range, and then the water storage liquid level height adjustment processing is performed based on the liquid level height control type, so that the water level in the gas-liquid separator 2200 is within a reasonable range, avoiding cavitation of the water pump 2110 and ensuring that the time for the gas-liquid separator 2200 to supply water to the spray system 2100 at a set flow rate meets the set safety duration.

[0090] Please refer to Figure 5 , Figure 5Another schematic flowchart for regulating the water storage liquid level height provided by the embodiments of the present application. As Figure 5 shown, in S404, based on the water storage liquid level height and the first preset liquid level height range, the liquid level height control type is determined, and the water storage liquid level height is regulated based on the liquid level height control type, including:

[0091] S502: Perform a liquid level height comparison process on the water storage liquid level height and the first preset liquid level height range.

[0092] Among them, after performing the liquid level height comparison process on the water storage liquid level height and the first preset liquid level height range, three situations can be obtained, that is, the water storage liquid level height is greater than the first preset upper limit height of the first preset liquid level height range, the water storage liquid level height is less than the first preset lower limit height of the first preset liquid level height range, and the water storage liquid level height is within the first preset liquid level height range.

[0093] S504: When the water storage liquid level height is less than the minimum value of the first preset liquid level height range, determine that the liquid level height control type is the first liquid level height control method, and perform water supply treatment for the water storage based on the first liquid level height control method to increase the water storage liquid level height.

[0094] Among them, the water storage liquid level height is less than the minimum value of the first preset liquid level height range, and the minimum value of the first preset liquid level height range is the first preset lower limit height, indicating that there is too little liquid in the gas-liquid separator 2200. Then the liquid level height control type is the first liquid level height control method, and the water storage liquid level height can be regulated based on the first liquid level height control method to increase the water storage liquid level height to the first preset upper limit height or slightly greater than the first preset upper limit height.

[0095] S506: When the water storage liquid level height is greater than or equal to the maximum value of the first preset liquid level height range, determine that the liquid level height control type is the second liquid level height control method, and end the water supply treatment for the water storage based on the second liquid level height control method.

[0096] Among them, the water storage liquid level height is greater than or equal to the maximum value of the first preset liquid level height range, and the maximum value of the first preset liquid level height range is the first preset upper limit height, indicating that there is too much liquid in the gas-liquid separator 2200. The regulation of the water storage liquid level height can be stopped, and at this time, the water supply treatment for the water storage can be ended based on the second liquid level height control method.

[0097] In addition, when the water storage liquid level height is within the first preset liquid level height range, the regulation of the water storage liquid level height can be stopped, or the water storage liquid level height can be regulated to continuously or intermittently increase the water storage liquid level height.

[0098] In the embodiments provided in this application, by comparing the height of the water storage level with the first preset water level height range to determine the corresponding water level height control type, the water level in the gas-liquid separator 2200 is located in a reasonable range, avoiding cavitation of the water pump 2110 and ensuring that the time for the gas-liquid separator 2200 to supply water to the spray system 2100 at a set flow rate meets the set safety duration.

[0099] Please refer to Figure 6 , Figure 6 which is a schematic structural diagram of another steam compressor provided in the embodiments of this application. As Figure 6 shown, the steam compressor 2000 further includes a water tank 2600. The water inlet 2610 of the water tank 2600 is connected to the liquid outlet pipe 2220 of the gas-liquid separator 2200, and the water outlet 2610 of the water tank 2600 is connected to the water pump 2110.

[0100] Exemplarily, the liquid separated in the gas-liquid separator 2200 flows into the water tank 2600 through the liquid outlet pipe 2220 for storage. The water outlet 2610 of the water tank 2600 is connected to the water pump 2110. The water pump 2110 is used to drive the liquid in the water tank 2600 to generate a spray through the control valve 2120 and the nozzle 2130 to spray-cool the superheated steam in the cooling pipe 2800.

[0101] Please refer to Figure 6 , and a third liquid level sensor 2601 and a fourth liquid level sensor 2602 are installed in the water storage cavity of the water tank 2600. Among them, the third liquid level sensor 2601 is used to detect whether the water storage level height in the water storage cavity of the water tank 2600 is greater than or equal to the second preset upper limit height, and the fourth liquid level sensor 2602 is used to detect whether the water storage level height in the water storage cavity of the water tank 2600 is less than or equal to the second preset lower limit height.

[0102] Exemplarily, the third liquid level sensor 2601 can be set at a corresponding height position in the water tank 2600 based on the second preset upper limit height, and the fourth liquid level sensor 2602 can be set at a corresponding height position in the water tank 2600 based on the second preset lower limit height. In the water tank 2600, the height at which the third liquid level sensor 2601 is set is greater than the height at which the fourth liquid level sensor 2602 is set.

[0103] When the third liquid level sensor 2601 disposed at the corresponding height position detects liquid, it indicates that the liquid level height of the liquid in the water tank 2600 is greater than or equal to the second preset upper limit height; when the fourth liquid level sensor 2602 disposed at the corresponding height position does not detect liquid, it indicates that the liquid level height of the liquid in the water tank 2600 is less than the second preset lower limit height. When the fourth liquid level sensor 2602 detects liquid while the third liquid level sensor 2601 does not detect liquid, it indicates that the liquid level height of the liquid in the water tank 2600 is greater than or equal to the second preset lower limit height and less than the second preset upper limit height.

[0104] As Figure 6 shown, the steam compressor 2000 further includes a second water replenishing control valve 2900, and the water tank 2600 is communicated with the second water replenishing control valve 2900; wherein, when the liquid level height of the water tank 2600 is greater than or equal to the second preset upper limit height, the second water replenishing control valve 2900 is in a state of stopping water supply; when the liquid level height of the water tank 2600 is less than the second preset lower limit height, the second water replenishing control valve 2900 is in a state of supplying water.

[0105] Exemplarily, the third liquid level sensor 2601 and the fourth liquid level sensor 2602 can be electrically connected to a controller, and the controller can determine the liquid level height of the water tank 2600 based on the electrical signals transmitted by the third liquid level sensor 2601 and the fourth liquid level sensor 2602, and then control the second water replenishing control valve 2900. The second water replenishing control valve 2900 is used to be communicated with an external water supply pipeline, and at the same time, the second water replenishing control valve 2900 is also communicated with the water storage cavity of the water tank 2600. When the second water replenishing control valve 2900 is in a state of stopping water supply, the second water replenishing control valve 2900 is closed to stop supplying water to the water storage cavity of the water tank 2600; when the second water replenishing control valve 2900 is in a state of supplying water, the second water replenishing control valve 2900 is opened to supply water to the water storage cavity of the water tank 2600.

[0106] When the liquid level height of the water tank 2600 is greater than or equal to the second preset upper limit height, it indicates that the liquid level height of the water tank 2600 is too high. At this time, the controller controls the second water replenishing control valve 2900 to be in a state of stopping water supply; when the liquid level height of the water tank 2600 is less than the second preset lower limit height, it indicates that the liquid level height of the water tank 2600 is too low. At this time, the controller controls the second water replenishing control valve 2900 to be in a state of supplying water.

[0107] Please refer to Figure 7 , Figure 7 which is a schematic flowchart of a process for adjusting the liquid level height of a water tank provided by an embodiment of the present application. As Figure 6As shown (the compression section and the next-stage compression section are not shown), the steam compressor 2000 further includes a water tank 2600. The water inlet 2610 of the water tank 2600 is communicated with the liquid outlet pipe 2220 of the gas-liquid separator 2200, and the water outlet 2620 of the water tank 2600 is communicated with the water pump 2110. A steam trap 2700 is also provided between the pipes where the water tank 2600 and the gas-liquid separator 2200 are communicated. A third liquid level sensor 2601 and a fourth liquid level sensor 2602 are provided on the water tank 2600, and the third liquid level sensor 2601 and the fourth liquid level sensor 2602 are used to detect the liquid level height in the water tank 2600. Figure 6 The inside of the dotted line box in is a schematic diagram of the cooling pipe 2800 for reference Figure 1 . Exemplarily, Figure 6 The dotted arrows in can represent the flow direction of steam, the dash-dotted lines can represent the flow direction of the steam-water mixture, and the solid arrows can represent the flow direction of liquid water. Specifically, the method for adjusting the liquid level height of the water tank includes:

[0108] S702: Detect the liquid level height of the water tank.

[0109] Among them, the liquid level height of the water tank 2600 is detected based on the third liquid level sensor 2601 and the fourth liquid level sensor 2602, so as to obtain the liquid level height of the water tank 2600. The third liquid level sensor 2601 is used to detect whether the water storage level height in the water storage cavity of the water tank 2600 is greater than or equal to the second preset upper limit height, and the fourth liquid level sensor 2602 is used to detect whether the water storage level height in the water storage cavity of the water tank 2600 is less than or equal to the second preset lower limit height.

[0110] S704: Obtain the second preset liquid level height range corresponding to the water tank, determine the liquid level height control type of the water tank based on the liquid level height of the water tank and the second preset liquid level height range, and perform liquid level height adjustment processing of the water tank based on the liquid level height control type.

[0111] Among them, the second preset liquid level height range corresponding to the water tank 2600 includes the second preset upper limit height and the second preset lower limit height. The second preset upper limit height can be determined based on the set safety duration for the water tank 2600 to supply water to the spraying system 2100 at a set flow rate without external water replenishment. Specifically, the liquid mass or volume of the water tank 2600 can be determined based on the product of the safety duration and the set flow rate, so as to determine the second preset upper limit height. At the same time, the second preset lower limit height of the water tank 2600 can be determined based on the minimum pressure value at which the water pump 2110 avoids cavitation.

[0112] Afterwards, the second preset liquid level height range corresponding to the water tank 2600 is compared with the liquid level height of the water tank 2600 to determine the liquid level height control type of the water tank. Finally, based on the liquid level height control type of the water tank, the liquid level height of the water tank is adjusted so that the liquid level height in the water tank 2600 falls within a suitable range.

[0113] In the embodiment provided by the present application, the liquid level height control type of the water tank is determined based on the liquid level height of the water tank and the second preset liquid level height range. Then, based on the liquid level height control type of the water tank, the liquid level height of the water tank is adjusted so that the water level in the water tank 2600 is within a reasonable range, avoiding cavitation of the water pump 2110 and ensuring that the water supply time of the water tank 2600 to the spraying system 2100 at a set flow rate meets the set safety duration.

[0114] Please refer to Figure 8 , Figure 8 which is a schematic flow chart of another method for adjusting the liquid level height of the water tank provided by the embodiment of the present application. As Figure 8 shown, in S704, the liquid level height control type of the water tank is determined based on the liquid level height of the water tank and the second preset liquid level height range, and the liquid level height of the water tank is adjusted based on the liquid level height control type, including:

[0115] S802: Perform a comparison process on the liquid level height of the water tank and the second preset liquid level height range.

[0116] After performing the comparison process on the liquid level height of the water tank and the second preset liquid level height range, three situations can be obtained, that is, the liquid level height of the water tank is greater than the second preset upper limit height of the second preset liquid level height range, the liquid level height of the water tank is less than the second preset lower limit height of the second preset liquid level height range, and the liquid level height of the water tank is within the second preset liquid level height range.

[0117] S804: When the liquid level height of the water tank is less than the minimum value of the second preset liquid level height range, determine that the liquid level height control type of the water tank is the first water tank liquid level height control method, and perform water supply processing for the water tank based on the first water tank liquid level height control method to increase the liquid level height of the water tank.

[0118] Among them, when the liquid level height of the water tank is less than the minimum value of the second preset liquid level height range, that is, the second preset lower limit height, it indicates that the liquid in the water tank 2600 is too little. Then, the liquid level height control type of the water tank is the first water tank liquid level height control method, and water supply processing for the water tank can be performed based on the first water tank liquid level height control method to adjust the liquid level height of the water tank and increase it to the second preset upper limit height or slightly greater than the second preset upper limit height.

[0119] S806: When the water tank liquid level height is greater than or equal to the maximum value of the second preset liquid level height range, determine that the water tank liquid level height control type is the second water tank liquid level height control method, and end the water supply process of the water tank based on the second water tank liquid level height control method.

[0120] Among them, when the water tank liquid level height is greater than or equal to the maximum value of the second preset liquid level height range, that is, the second preset upper limit height, it indicates that there is too much liquid in the water tank 2600, and the adjustment of the water tank liquid level height can be stopped. At this time, the water supply process of the water tank can be ended based on the second water tank liquid level height control method.

[0121] In addition, when the water tank liquid level height is within the second preset liquid level height range, the adjustment of the water tank liquid level height can be stopped, or the water tank liquid level height can be adjusted to continuously or intermittently increase the water tank liquid level height.

[0122] In the embodiment provided by the present application, by performing a comparison process on the water tank liquid level height and the second preset liquid level height range to determine the corresponding water tank liquid level height control type, the water level in the water tank 2600 is within a reasonable range, avoiding cavitation of the water pump 2110 and ensuring that the water supply time of the water tank 2600 to the spraying system 2100 at a set flow rate meets the set safety duration.

[0123] Please refer to Figure 9 , Figure 9 which is a schematic flow diagram of a water supply process for a water pump provided by an embodiment of the present application. As Figure 9 shown, the method includes:

[0124] S902: Perform a liquid quality detection on the liquid outlet pipeline of the gas-liquid separator to obtain the liquid outlet spray water quality parameters.

[0125] Among them, the water quality of the liquid discharged from the liquid outlet pipeline 2220 of the gas-liquid separator 2200 may not meet the water quality requirements for recycling. Therefore, a liquid quality detection is performed on the liquid outlet pipeline 2220 of the gas-liquid separator 2200 to obtain the liquid outlet spray water quality parameters, so as to determine whether the liquid outlet spray water quality parameters meet the liquid outlet recovery conditions.

[0126] S904: If the liquid outlet spray water quality parameters meet the liquid outlet recovery conditions, use the liquid discharged from the liquid outlet pipeline to perform a first water supply process on the water pump.

[0127] Among them, when the liquid outlet spray water quality parameters meet the liquid outlet recovery conditions, the liquid discharged from the liquid outlet pipeline 2220 can be directly used to perform a first water supply process on the water pump, so that the unvaporized liquid of the spray and the heat of the unvaporized liquid of the spray can be recycled doubly.

[0128] S906: If the water quality parameters of the liquid discharged by the spray do not meet the liquid discharge recovery conditions, supplementary liquid is used to perform liquid heat energy recovery treatment on the discharged liquid of the liquid discharge pipeline to obtain spray supplementary liquid, and the spray supplementary liquid is used to perform a second water supply treatment on the water pump.

[0129] Among them, when the water quality parameters of the liquid discharged by the spray do not meet the liquid discharge recovery conditions, supplementary liquid is used to perform liquid heat energy recovery treatment on the discharged liquid of the liquid discharge pipeline 2220 to obtain spray supplementary liquid, so that the heat of the unvaporized liquid in the spray can be recovered. Then, the spray supplementary liquid is used to perform a second water supply treatment on the water pump.

[0130] In the embodiment provided in the present application, by judging whether the water quality parameters of the liquid discharged by the spray meet the liquid discharge recovery conditions, it is further judged whether to perform double recovery on the unvaporized liquid in the spray and the heat of the unvaporized liquid in the spray. When the water quality parameters of the liquid discharged by the spray meet the liquid discharge recovery conditions, the discharged liquid of the liquid discharge pipeline can be directly used to perform a first water supply treatment on the water pump, so that double recovery of the unvaporized liquid in the spray and the heat of the unvaporized liquid in the spray can be achieved; when the water quality parameters of the liquid discharged by the spray do not meet the liquid discharge recovery conditions, supplementary liquid is used to perform liquid heat energy recovery treatment on the discharged liquid of the liquid discharge pipeline to obtain spray supplementary liquid, so that the heat of the unvaporized liquid in the spray can be recovered. Then, the spray supplementary liquid is used to perform a second water supply treatment on the water pump.

[0131] Please refer to Figure 10 , Figure 10 , which is a schematic structural diagram of another steam compressor provided in the embodiment of the present application. Figure 10 The compression part and the next-stage compression part are not shown. Figure 10 Inside the dotted line box in Figure 1 , is a schematic diagram of the cooling pipeline 2800, which can be referred to. Figure 10 The water pump in Figure 1 is not shown, which can be referred to.

[0132] In S906, supplementary liquid is used to perform liquid heat energy recovery treatment on the discharged liquid of the liquid outlet pipeline to obtain spray supplementary liquid, and the spray supplementary liquid is used to perform second water supply treatment on the water pump, including:

[0133] The discharged liquid of the liquid outlet pipeline 2220 is conveyed to the first liquid inlet 2151, supplementary liquid is conveyed to the second liquid inlet 2152 through the water replenishing assembly 2140, liquid heat energy exchange treatment is performed on the discharged liquid and the supplementary liquid in the heat energy recovery assembly 2150 to obtain waste liquid and spray supplementary liquid, and the spray supplementary liquid is driven to be conveyed to the water pump 2110 through the liquid outlet 2153.

[0134] Among them, the liquid outlet 2153 is communicated with the second liquid inlet 2152 where the water replenishing assembly 2140 is located. After the discharged liquid of the liquid outlet pipeline 2220 is conveyed to the first liquid inlet 2151, it can pass through Figure 2 the water pump 2110 and the control valve 2120 in it are connected to the cooling pipeline 2800 ( Figure 9 not shown in the figure). After the discharged liquid of the liquid outlet pipeline 2220 is conveyed to the first liquid inlet 2151, it can also be recovered after water treatment by a liquid recovery module (deaerator, soft water tank, etc.). The loop after the discharged liquid is conveyed to the first liquid inlet 2151 can be determined based on whether the liquid quality parameters of the outlet spray meet the outlet recovery conditions. When the liquid quality parameters of the outlet spray meet the outlet recovery conditions, after the discharged liquid of the liquid outlet pipeline 2220 is conveyed to the first liquid inlet 2151, it can pass through Figure 2 the water pump 2110 and the control valve 2120 in it are connected to the cooling pipeline 2800; when the liquid quality parameters of the outlet spray do not meet the outlet recovery conditions, after the discharged liquid of the liquid outlet pipeline 2220 is conveyed to the first liquid inlet 2151, it can also be recovered after water treatment by a liquid recovery module (deaerator, soft water tank, etc.).

[0135] In this embodiment, since the liquid quality parameters of the outlet spray do not meet the outlet recovery conditions, the spray supplementary liquid is used to perform second water supply treatment on the water pump 2110. Therefore, at this time, after the discharged liquid of the liquid outlet pipeline 2220 is conveyed to the first liquid inlet 2151, it is recovered after water treatment by a liquid recovery module. Waste liquid is obtained by performing liquid heat energy exchange treatment on the discharged liquid, and spray supplementary liquid is obtained by performing liquid heat energy exchange treatment on the supplementary liquid.

[0136] In the embodiment provided by the present application, supplementary liquid is used to perform liquid heat energy recovery treatment on the discharged liquid of the liquid outlet pipeline to obtain spray supplementary liquid, so that the heat of the unvaporized liquid in the spray can be recovered.

[0137] The present application also provides a steam compressor 2000, which includes: a multi-stage compression section and a gas-liquid separator 2200; a spraying system 2100, which includes a water pump 2110, a control valve 2120 and a nozzle 2130. The water pump 2110 is communicated with the control valve 2120, and the control valve 2120 is communicated with the nozzle 2130; a cooling pipeline 2800, the inlet pipelines of the cooling pipeline 2800 are respectively communicated with the compression section 2300 and the control valve 2120, the outlet pipeline 2132 of the cooling pipeline 2800 is communicated with the inlet pipeline 2210 of the gas-liquid separator 2200, the liquid outlet pipeline 2220 of the gas-liquid separator 2200 is communicated with the control valve 2120 through the water pump 2110, the nozzle 2130 is communicated with the cooling pipeline 2800, and the exhaust pipeline 2230 of the gas-liquid separator 2200 is communicated with the next-stage compression section 2400 of the compression section 2300;

[0138] The steam compressor 2200 is configured to:

[0139] Detect the gas temperature and gas pressure of the exhaust pipeline 2230, determine the gas superheat degree based on the gas temperature and gas pressure; obtain a preset superheat degree interval for the exhaust pipeline, and adjust the liquid flow rate of the control valve 2120 based on the gas superheat degree and the preset superheat degree interval.

[0140] Optionally, adjusting the liquid flow rate of the control valve 2120 based on the gas superheat degree and the preset superheat degree interval is configured to:

[0141] Determine the superheat degree control type based on the gas superheat degree and the preset superheat degree interval, and adjust the liquid flow rate of the control valve 2120 by using the superheat degree control method corresponding to the superheat degree control type.

[0142] Optionally, adjusting the liquid flow rate of the control valve 2120 by using the superheat degree control method corresponding to the superheat degree control type is configured to:

[0143] When the gas superheat degree is greater than the maximum value of the preset superheat degree interval, determine that the superheat degree control type is the first superheat degree control method, and adjust the control valve 2120 based on the first superheat degree control method to increase the liquid flow rate;

[0144] When the gas superheat degree is less than the minimum value of the preset superheat degree interval, determine that the superheat degree control type is the second superheat degree control method, and adjust the control valve 2120 based on the second superheat degree control method to decrease the liquid flow rate;

[0145] When the gas superheat degree is within the preset superheat degree interval, determine that the superheat degree control type is the third superheat degree control method, and stop adjusting the control valve 2120 based on the third superheat degree control method.

[0146] Optionally, the water vapor compressor is further configured to:

[0147] Detect the water storage level height of the gas-liquid separator 2200;

[0148] Obtain the first preset liquid level height interval corresponding to the gas-liquid separator 2200, determine the liquid level height control type based on the water storage level height and the first preset liquid level height interval, and perform water storage level height adjustment processing based on the liquid level height control type.

[0149] Optionally, determining the liquid level height control type based on the water storage level height and the first preset liquid level height interval, and performing water storage level height adjustment processing based on the liquid level height control type is configured to:

[0150] Perform a liquid level height comparison process on the water storage level height and the first preset liquid level height interval;

[0151] When the water storage level height is less than the minimum value of the first preset liquid level height interval, determine that the liquid level height control type is the first liquid level height control method, and perform water storage and water supply processing based on the first liquid level height control method to increase the water storage level height;

[0152] When the water storage level height is greater than or equal to the maximum value of the first preset liquid level height interval, determine that the liquid level height control type is the second liquid level height control method, and end the water storage and water supply processing based on the second liquid level height control method.

[0153] Optionally, the water vapor compressor 2000 further includes a water tank 2600. The water inlet 2610 of the water tank 2600 is connected to the liquid outlet pipe 2220 of the gas-liquid separator 2200, and the water outlet 2620 of the water tank 2600 is connected to the water pump 2110.

[0154] The water vapor compressor 2000 is further configured to:

[0155] Detect the water tank level height of the water tank 2600;

[0156] Obtain the second preset liquid level height interval corresponding to the water tank 2600, determine the water tank level height control type based on the water tank level height and the second preset liquid level height interval, and perform water tank level height adjustment processing based on the water tank level height control type.

[0157] Optionally, determining the water tank level height control type based on the water tank level height and the second preset liquid level height interval, and performing water tank level height adjustment processing based on the water tank level height control type is configured to:

[0158] Perform a water tank level height comparison process on the water tank level height and the second preset liquid level height interval;

[0159] When the water tank liquid level height is less than the minimum value of the second preset liquid level height range, determine that the water tank liquid level height control type is the first water tank liquid level height control method, and perform water supply treatment for the water tank based on the first water tank liquid level height control method to increase the water tank liquid level height;

[0160] When the water tank liquid level height is greater than or equal to the maximum value of the second preset liquid level height range, determine that the water tank liquid level height control type is the second water tank liquid level height control method, and end the water supply treatment for the water tank based on the second water tank liquid level height control method.

[0161] Optionally, the steam compressor 2000 is further configured to:

[0162] Perform liquid quality detection on the liquid outlet pipe 2220 of the gas-liquid separator 2200 to obtain the liquid spray water quality parameters;

[0163] If the liquid spray water quality parameters meet the liquid outlet recovery condition, perform the first water supply treatment on the water pump 2110 using the discharged liquid from the liquid outlet pipe 2220;

[0164] If the liquid spray water quality parameters do not meet the liquid outlet recovery condition, perform liquid heat energy recovery treatment on the discharged liquid from the liquid outlet pipe 2220 using the supplementary liquid to obtain the spray supplementary liquid, and perform the second water supply treatment on the water pump 2110 using the spray supplementary liquid.

[0165] Optionally, the spray system 2100 further includes a water replenishing component 2140 and a heat energy recovery component 2150. The first liquid inlet 2151 of the heat energy recovery component 2150 is connected to the liquid outlet pipe 2220, the second liquid inlet 2152 of the heat energy recovery component 2150 is connected to the water replenishing component 2140, and the liquid outlet 2153 of the heat energy recovery component 2150 is connected to the water pump 2110;

[0166] Performing liquid heat energy recovery treatment on the discharged liquid from the liquid outlet pipe 2220 using the supplementary liquid to obtain the spray supplementary liquid, and performing the second water supply treatment on the water pump 2110 using the spray supplementary liquid is configured to:

[0167] Transport the discharged liquid from the liquid outlet pipe 2220 to the first liquid inlet 2151, transport the supplementary liquid to the second liquid inlet 2152 through the water replenishing component 2140, perform liquid heat energy exchange treatment on the discharged liquid and the supplementary liquid in the heat energy recovery component 2150 to obtain the waste liquid and the spray supplementary liquid, and drive the spray supplementary liquid to be transported to the water pump 2110 through the liquid outlet.

[0168] This application also provides a refrigeration system, and the refrigeration system includes the steam compressor of any one of the above.

[0169] Please refer to Figure 11 , Figure 11A schematic structural diagram of an electronic device provided by an embodiment of the present application. As Figure 11 shown, the electronic device 1100 may include: at least one processor 1101, at least one network interface 1104, a user interface 1103, a memory 1105, and at least one communication bus 1102.

[0170] Among them, the communication bus 1102 is used to realize the connection and communication between these components.

[0171] Among them, the user interface 1103 may include a display screen (Display) and a camera (Camera). Optionally, the user interface 1103 may further include a standard wired interface and a wireless interface.

[0172] Among them, the network interface 1104 may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface).

[0173] Among them, the processor 1101 may include one or more processing cores. The processor 1101 connects various parts within the entire electronic device 1100 through various interfaces and lines. By running or executing instructions, programs, code sets, or instruction sets stored in the memory 1105, and by calling the data stored in the memory 1105, it executes various functions of the electronic device 1100 and processes data. Optionally, the processor 1101 may be implemented in at least one hardware form of digital signal processing (DSP), field-programmable gate array (FPGA), or programmable logic array (PLA). The processor 1101 may integrate one or several combinations of a central processing unit (CPU), a graphics processing unit (GPU), and a modem, etc. Among them, the CPU mainly processes the operating system, the user interface, and application programs, etc.; the GPU is responsible for the rendering and drawing of the content to be displayed on the display screen; the modem is used to process wireless communication. It can be understood that the above modem may not be integrated into the processor 1101 and may be implemented separately by a single chip.

[0174] Among them, the memory 1105 may include a Random Access Memory (RAM), or may include a Read-Only Memory (ROM). Optionally, the memory 1105 includes a non-transitory computer-readable storage medium. The memory 1105 can be used to store instructions, programs, codes, code sets or instruction sets. The memory 1105 may include a program storage area and a data storage area. Among them, the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playback function, an image playback function, etc.), instructions for implementing the above method embodiments, etc.; the data storage area may store data involved in the above method embodiments. Optionally, the memory 1105 may also be at least one storage device located far from the aforementioned processor 1101. As Figure 11 shown, the memory 1105, as a computer storage medium, may include an operating system, a network communication module, a user interface module, and an inter-stage cooling program for a steam compressor. The steam compressor 2000 includes: a multi-stage compression section and a gas-liquid separator 2200; a spraying system 2100, the spraying system 2100 includes a water pump 2110, a control valve 2120, and a nozzle 2130, the water pump 2110 is connected to the control valve 2120, and the control valve 2120 is connected to the nozzle 2130; a cooling pipeline 2800, the inlet pipelines of the cooling pipeline 2800 are respectively connected to the compression section 2300 and the control valve 2120, the outlet pipeline 2132 of the cooling pipeline 2800 is connected to the inlet pipeline 2210 of the gas-liquid separator 2200, the liquid outlet pipeline 2220 of the gas-liquid separator 2200 is connected to the control valve 2120 through the water pump 2110, the nozzle 2130 is connected to the cooling pipeline 2800, and the exhaust pipeline 2230 of the gas-liquid separator 2200 is connected to the next-stage compression section 2400 of the compression section 2300.

[0175] In Figure 11 the electronic device 1100 shown, the user interface 1103 is mainly used to provide an input interface for the user to obtain user input data; while the processor 1101 can be used to call the inter-stage cooling program for the steam compressor stored in the memory 1105 and specifically perform the following operations:

[0176] Detect the gas temperature and gas pressure of the exhaust pipeline, and determine the gas superheat degree based on the gas temperature and gas pressure;

[0177] Obtain a preset superheat degree interval for the exhaust pipeline, and adjust the liquid flow rate of the control valve based on the gas superheat degree and the preset superheat degree interval.

[0178] Optionally, when the processor 1101 adjusts the liquid flow rate of the control valve based on the gas superheat degree and the preset superheat degree range, it specifically performs the following:

[0179] Determine the superheat degree control type based on the gas superheat degree and the preset superheat degree range, and adjust the liquid flow rate of the control valve by using the superheat degree control method corresponding to the superheat degree control type.

[0180] Optionally, when the processor 1101 adjusts the liquid flow rate of the control valve by using the superheat degree control method corresponding to the superheat degree control type, it specifically performs the following:

[0181] When the gas superheat degree is greater than the maximum value of the preset superheat degree range, determine that the superheat degree control type is the first superheat degree control method, and adjust the control valve based on the first superheat degree control method to increase the liquid flow rate;

[0182] When the gas superheat degree is less than the minimum value of the preset superheat degree range, determine that the superheat degree control type is the second superheat degree control method, and adjust the control valve based on the second superheat degree control method to decrease the liquid flow rate;

[0183] When the gas superheat degree is within the preset superheat degree range, determine that the superheat degree control type is the third superheat degree control method, and stop adjusting the control valve based on the third superheat degree control method.

[0184] Optionally, the processor 1101 is also adapted to perform the following:

[0185] Detect the water storage level height of the gas-liquid separator;

[0186] Obtain the first preset liquid level height range corresponding to the gas-liquid separator, determine the liquid level height control type based on the water storage level height and the first preset liquid level height range, and perform water storage level height adjustment processing based on the liquid level height control type.

[0187] Optionally, when the processor 1101 determines the liquid level height control type based on the water storage level height and the first preset liquid level height range and performs water storage level height adjustment processing based on the liquid level height control type, it specifically performs the following:

[0188] Perform liquid level height comparison processing on the water storage level height and the first preset liquid level height range;

[0189] When the water storage level height is less than the minimum value of the first preset liquid level height range, determine that the liquid level height control type is the first liquid level height control method, and perform water storage and water supply processing based on the first liquid level height control method to increase the water storage level height;

[0190] When the water storage level height is greater than or equal to the maximum value of the first preset level height interval, determine that the level height control type is the second level height control method, and end the water storage and water supply process based on the second level height control method.

[0191] Optionally, the steam compressor further includes a water tank. The water inlet of the water tank is connected to the liquid outlet pipe of the gas-liquid separator, and the water outlet of the water tank is connected to the water pump.

[0192] The processor 1101 is further adapted to execute:

[0193] Detect the water tank level height of the water tank;

[0194] Obtain the second preset level height interval corresponding to the water tank, determine the water tank level height control type based on the water tank level height and the second preset level height interval, and perform water tank level height adjustment processing based on the water tank level height control type.

[0195] Optionally, when the processor 1101 executes to determine the water tank level height control type based on the water tank level height and the second preset level height interval and perform water tank level height adjustment processing based on the water tank level height control type, it specifically executes:

[0196] Perform a water tank level height comparison process on the water tank level height and the second preset level height interval;

[0197] When the water tank level height is less than the minimum value of the second preset level height interval, determine that the water tank level height control type is the first water tank level height control method, and perform water tank water supply processing based on the first water tank level height control method to increase the water tank level height;

[0198] When the water tank level height is greater than or equal to the maximum value of the second preset level height interval, determine that the water tank level height control type is the second water tank level height control method, and end the water tank water supply process based on the second water tank level height control method.

[0199] Optionally, the processor 1101 is further adapted to execute:

[0200] Perform a liquid quality detection on the liquid outlet pipe of the gas-liquid separator to obtain the liquid spray water quality parameters;

[0201] If the liquid spray water quality parameters meet the liquid discharge recovery conditions, use the discharged liquid from the liquid outlet pipe to perform the first water supply process on the water pump;

[0202] If the liquid spray water quality parameters do not meet the liquid discharge recovery conditions, use the supplementary liquid to perform a liquid heat energy recovery process on the discharged liquid from the liquid outlet pipe to obtain the spray supplementary liquid, and use the spray supplementary liquid to perform the second water supply process on the water pump.

[0203] Optionally, the spraying system further includes a water replenishing component and a heat energy recovery component. The first liquid inlet of the heat energy recovery component is communicated with the liquid outlet pipe, the second liquid inlet of the heat energy recovery component is communicated with the water replenishing component, and the liquid outlet of the heat energy recovery component is communicated with the water pump;

[0204] When the processor 1101 performs liquid heat energy recovery processing on the discharged liquid of the liquid outlet pipe with a supplementary liquid to obtain a spray supplementary liquid and performs a second water supply process on the water pump with the spray supplementary liquid, it specifically executes:

[0205] Transport the discharged liquid of the liquid outlet pipe to the first liquid inlet, transport the supplementary liquid to the second liquid inlet through the water replenishing component, perform liquid heat energy exchange processing on the discharged liquid and the supplementary liquid in the heat energy recovery component to obtain waste liquid and a spray supplementary liquid, and drive the spray supplementary liquid to be transported to the water pump through the liquid outlet.

[0206] In several embodiments provided in the embodiments of the present application, it should be understood that the disclosed device and method can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the modules is only a logical function division. In actual implementation, there may be other division methods. For example, multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection to each other can be through some interfaces. The indirect coupling or communication connection of the device or module can be in an electrical, mechanical or other form.

[0207] The modules described as separate components may or may not be physically separated. The components displayed as modules may or may not be physical modules, that is, they may be located in one place, or they may be distributed to multiple network modules. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0208] In addition, in each embodiment of the embodiments of the present application, the various functional modules can be integrated in a processing module, or each module can exist physically alone, or two or more modules can be integrated in one module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules.

[0209] When the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the embodiments of the present application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks, or optical discs that can store program codes.

[0210] It should be noted that for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the embodiments of the present application are not limited by the described action sequence, because according to the embodiments of the present application, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential for the embodiments of the present application.

[0211] In the above embodiments, the descriptions of the various embodiments have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0212] The above is the description of the steam compressor and the refrigeration system provided by the embodiments of the present application. For those skilled in the art, according to the idea of the embodiments of the present application, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the embodiments of the present application.

Claims

1. A water vapor compressor, characterized in that: The water vapor compressor (2000) comprises: Multi-stage compression section and gas-liquid separator (2200); A spray system (2100), the spray system (2100) comprising a water pump (2110), a control valve (2120) and a nozzle (2130), the water pump (2110) being connected to the control valve (2120), and the control valve (2120) being connected to the nozzle (2130); A cooling pipe (2800), wherein the inlet pipe of the cooling pipe (2800) is respectively connected to the compression part (2300) and the control valve (2120), the outlet pipe (2132) of the cooling pipe (2800) is connected to the inlet pipe (2210) of the gas-liquid separator (2200), the liquid outlet pipe (2220) of the gas-liquid separator (2200) is connected to the control valve (2120) through the water pump (2110), the nozzle (2130) is connected to the cooling pipe (2800), and the exhaust pipe (2230) of the gas-liquid separator (2200) is connected to the next-stage compression part (2400) of the compression part (2300).

2. The water vapor compressor according to claim 1, characterized in that: The water vapor compressor (2000) further comprises a temperature sensor and a pressure sensor, wherein the temperature sensor and the pressure sensor are respectively arranged in the exhaust pipe (2230); Wherein, the temperature sensor is used to detect the gas temperature in the exhaust pipe (2230), and the pressure sensor is used to detect the gas pressure in the exhaust pipe (2230).

3. The water vapor compressor according to claim 1, characterized in that: A first liquid level sensor (2201) and a second liquid level sensor (2202) are installed in the water storage chamber of the gas-liquid separator (2200); The first liquid level sensor (2201) is used to detect whether the water level in the water storage chamber of the gas-liquid separator (2200) is greater than or equal to a first preset upper limit height, and the second liquid level sensor (2202) is used to detect whether the water level in the water storage chamber of the gas-liquid separator (2200) is less than or equal to a first preset lower limit height.

4. The water vapor compressor according to claim 3, characterized in that: The water vapor compressor (2000) further comprises a first water replenishment control valve (2500), and the gas-liquid separator (2200) is in communication with the first water replenishment control valve (2500); When the water level in the water storage chamber of the gas-liquid separator (2200) is greater than or equal to the first preset upper limit height, the first water replenishment control valve (2500) is in a water supply stop state; when the water level in the water storage chamber of the gas-liquid separator (2200) is less than the first preset lower limit height, the first water replenishment control valve (2500) is in a water supply state.

5. The water vapor compressor according to claim 1, characterized in that: The water vapor compressor (2000) further comprises a water tank (2600), a water inlet (2610) of the water tank (2600) being connected to the liquid outlet pipe (2220) of the gas-liquid separator (2200), and a water outlet (2620) of the water tank (2600) being connected to the water pump (2110).

6. The water vapor compressor according to claim 5, characterized in that: A third liquid level sensor (2601) and a fourth liquid level sensor (2602) are installed in the water storage chamber of the water tank (2600); The third liquid level sensor (2601) is used to detect whether the water level in the water storage chamber of the water tank (2600) is greater than or equal to a second preset upper limit height, and the fourth liquid level sensor (2602) is used to detect whether the water level in the water storage chamber of the water tank (2600) is less than or equal to a second preset lower limit height.

7. The water vapor compressor according to claim 6, characterized in that: The water vapor compressor (2000) further comprises a second water replenishment control valve (2900), and the water tank (2600) is in communication with the second water replenishment control valve (2900); When the water tank liquid level height of the water tank (2600) is greater than or equal to the second preset upper limit height, the second water replenishment control valve (2900) is in a water supply stop state; when the water tank liquid level height of the water tank (2600) is less than the second preset lower limit height, the second water replenishment control valve (2900) is in a water supply state.

8. The water vapor compressor according to claim 1, characterized in that: The spray system (2100) further comprises a water replenishment component (2140) and a heat recovery component (2150); a first liquid inlet (2151) of the heat recovery component (2150) is connected to the liquid outlet pipe (2220); a second liquid inlet (2152) of the heat recovery component (2150) is connected to the water replenishment component (2140); and a liquid outlet (2153) of the heat recovery component (2150) corresponding to the second liquid inlet (2152) is connected to the water pump (2110).

9. The water vapor compressor according to claim 8, characterized in that: The heat energy recovery component (2150) is a heat exchanger.

10. A refrigeration system, characterized in that: The refrigeration system comprises the water vapor compressor (2000) according to any one of claims 1 to 9.

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