Cooling system and water vapor compressor equipment

Abstract

The utility model discloses a cooling system and steam compressor equipment. The cooling system comprises a cooling pipeline, the spraying device comprises a water pump and a nozzle; the nozzle is communicated with the cooling pipeline so as to spray cooling water mist into the cooling pipeline under the pumping of the water pump; wherein the cooling pipeline is provided with a turbulent flow structure, the turbulent flow structure is used for driving the cooling water mist to be mixed with steam discharged into the cooling pipeline from the compression part located on the upstream, mixing and heat exchange of the water vapor and the cooling water mist can be promoted, and the mixing efficiency of the water vapor and the cooling water mist is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water vapor compressors, in particular to a cooling system and water vapor compressor equipment. Background Art

[0002] In recent years, the continuous development of steam compressor technology has led to its widespread application in daily life and industry, such as in air conditioning and industrial refrigeration systems. In multi-stage steam compressors, the exhaust temperature and superheat of each stage of the steam compression module are relatively high after steam compression. Therefore, external water is sprayed to cool the inter-stage exhaust. However, the spray does not mix well with the water vapor, resulting in low water vapor cooling efficiency. Utility Model Content

[0003] The embodiments of the present application provide a cooling system and a water vapor compressor device, which can promote the mixing and heat exchange of water vapor and cooling water mist, and improve the mixing efficiency of water vapor and cooling water mist.

[0004] In a first aspect, an embodiment of the present application provides a cooling system, comprising

[0005] cooling ducts; and

[0006] A spraying device, comprising a water pump and a nozzle; the nozzle is connected to the cooling pipe to spray cooling water mist into the cooling pipe under the pumping of the water pump;

[0007] Wherein, a turbulent flow structure is provided on the cooling pipe, and the turbulent flow structure is used to drive the cooling water mist and the steam discharged into the cooling pipe from the upstream compression part to mix.

[0008] In some embodiments, the spoiler structure includes a first spoiler and a second spoiler provided in the cooling pipe, wherein the first spoiler and the second spoiler are sequentially arranged in an extending direction of the cooling pipe;

[0009] A plurality of first flow guide channels arranged at intervals are formed in the first flow spoiler; a plurality of first flow guide channels arranged at intervals are formed in the first flow spoiler;

[0010] The first flow guiding channel and the second flow guiding channel are both flat, and a thickness direction of the first flow guiding channel and a thickness direction of the second flow guiding channel form an angle.

[0011] In some embodiments, a thickness direction of the first guide channel is perpendicular to a thickness direction of the second guide channel.

[0012] In some embodiments, the thickness of the first flow guiding channel is greater than or equal to the thickness of the second flow guiding channel.

[0013] In some embodiments, the thickness of the first flow guiding channel decreases along the extending direction of the cooling pipe; and / or

[0014] The thickness of the second flow guiding channel increases along the extending direction of the cooling pipe.

[0015] In some embodiments, there is a gap between the first spoiler and the second spoiler along the extending direction of the cooling pipe.

[0016] In some embodiments, there is no gap between the first spoiler and the second spoiler along the extending direction of the cooling pipe.

[0017] In some embodiments, the first spoiler includes a plurality of first spoilers arranged at intervals, and the first guide channel is formed between two adjacent first spoilers; the second spoiler includes a plurality of second spoilers arranged at intervals, and the first guide channel is formed between two adjacent second spoilers.

[0018] In some embodiments, at least one of the first spoiler and the second spoiler is a corrugated plate;

[0019] Alternatively, the first spoiler and the second spoiler are both corrugated plates, and the first spoiler and the second spoiler have different shapes;

[0020] Alternatively, a first protruding structure is further provided on the first spoiler and / or the second spoiler.

[0021] In some embodiments, the cooling pipe includes a mixing pipe section, the mixing pipe section is a Venturi tube structure and is formed as the turbulent structure, and the nozzle is connected to the throat position of the Venturi tube.

[0022] In some embodiments, the spoiler structure includes a plurality of second protrusion structures, which protrude from the inner wall surface of the cooling pipe and are arranged at intervals along the extension direction of the cooling pipe.

[0023] Based on the cooling system of the embodiment of the present application, by providing a turbulent flow structure in the cooling pipe, the mixing and heat exchange of water vapor and cooling water mist can be promoted, thereby improving the mixing efficiency of water vapor and cooling water mist.

[0024] In a second aspect, an embodiment of the present application further provides a water vapor compressor device, comprising:

[0025] at least two compression sections; and

[0026] A cooling system such as the one described above;

[0027] The cooling pipe connects the two adjacent compression parts, and the nozzle is connected to the cooling pipe to spray cooling water mist into the cooling pipe under the pumping of the water pump;

[0028] Wherein, a turbulent flow structure is provided on the cooling pipe, and the turbulent flow structure is used to drive the cooling water mist and the steam discharged into the cooling pipe from the upstream compression part to mix.

[0029] In some embodiments, the spraying device further includes a control valve, which is connected to the water pump and the nozzle and is configured to adjust the spraying flow of the nozzle;

[0030] The water vapor compressor equipment also includes:

[0031] a detection assembly configured to detect superheat of gas between the spray device and a compression section of a next stage of the compression section;

[0032] The controller is respectively connected to the detection component and the control valve signal, and is configured to adjust the spray flow of the nozzle based on the gas superheat and the preset superheat until the gas superheat is equal to the preset superheat.

[0033] In some embodiments, a gas-liquid separator is further included, the inlet of the gas-liquid separator is connected to the cooling pipe and is located downstream of the flow-disturbing structure, the liquid outlet of the gas-liquid separator is connected to the spray device, and the gas outlet is connected to the next-level compression part of the compression part.

[0034] In some embodiments, two liquid level sensors are further included. The two liquid level sensors are installed on the gas-liquid separator and are spaced apart in the height direction. Both of the two first liquid level sensors are connected to the control valve signal.

[0035] The controller is configured to: obtain the water level height in the gas-liquid separator through the liquid level sensor, and if the water level height and a preset value meet a set condition, control the control valve to adjust the spray flow of the nozzle.

[0036] In some embodiments, the spray device also includes a water replenishment component and a heat recovery component, the first liquid inlet of the heat recovery component is connected to the liquid outlet of the gas-liquid separator, the second liquid inlet of the heat recovery component is connected to the water replenishment component, and the liquid outlet of the heat recovery component is connected to the water pump.

[0037] Some embodiments further include a water tank and two second liquid level sensors. 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. The two second liquid level sensors are disposed within the water tank and spaced apart in height. The two second liquid level sensors are used to detect the liquid level in the water tank.

[0038] Based on the water vapor compressor equipment of the embodiment of the present application, a spray device is set between the compression section of the water vapor compressor and the next-stage compression section, so as to achieve spray cooling of the superheated steam discharged from the compression section and not yet entering the next-stage compression section. By adding a turbulent flow structure between two adjacent compression sections, the mixing and heat exchange of water vapor and cooling water mist can be promoted, and the mixing efficiency of water vapor and cooling water mist can be improved within a shorter inter-stage distance. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0040] Figure 1 A schematic structural diagram of a water vapor compressor device according to a first embodiment of the present application;

[0041] Figure 2 A schematic structural diagram of the spoiler structure of the first embodiment provided in the embodiments of the present application;

[0042] Figure 3 A schematic cross-sectional view of a spoiler structure according to a second embodiment of the present application;

[0043] Figure 4 A schematic cross-sectional view of a spoiler structure according to a third embodiment of the present application;

[0044] Figure 5 A schematic structural diagram of a water vapor compressor device according to a second embodiment of the present application;

[0045] Figure 6 A schematic flow chart of a method for operating a water vapor compressor provided in an embodiment of the present application;

[0046] Figure 7 A schematic diagram of a flow chart for regulating liquid flow through a flow regulating valve provided in an embodiment of the present application;

[0047] Figure 8A schematic diagram of a process for adjusting the water level provided in an embodiment of the present application;

[0048] Figure 9 A schematic diagram of another process for adjusting the water level provided in an embodiment of the present application;

[0049] Figure 10 A schematic structural diagram of another water vapor compressor provided in an embodiment of the present application;

[0050] Figure 11 A schematic diagram of a process for adjusting the liquid level of a water tank provided in an embodiment of the present application;

[0051] Figure 12 A schematic diagram of another process for adjusting the liquid level of a water tank provided in an embodiment of the present application;

[0052] Figure 13 A schematic diagram of a process for water supply treatment of a spray water pump provided in an embodiment of the present application;

[0053] Figure 14 This is a schematic structural diagram of another water vapor compressor provided in an embodiment of the present application.

[0054] Description of Figure Numbers:

[0055] 2000, water vapor compressor equipment; 2100, compression part; 2200, cooling pipe; 2210, spoiler structure; 2211, first spoiler; 2212, second spoiler; 2213, first spoiler; 2214, second spoiler; 2215, first guide channel; 2216, second guide channel; 2217, mixing pipe section; 2218, corrugated plate; 2300, spray device; 2310, water pump; 2320, control valve; 2330, nozzle; 2400, gas-liquid separator; 2410, first liquid level sensor; 2510, water replenishment component; 2520, heat recovery component; 2600, water tank; 2630, second liquid level sensor; 2700, steam trap.

[0056] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0057] In order to make the purpose, technical solutions and advantages of the present invention clearer, the following part will further describe the embodiments of the present application in detail with reference to the accompanying drawings.

[0058] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of devices and methods consistent with some aspects of the present invention, as detailed in the appended claims.

[0059] In the description of the present invention, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the previous and subsequent associated objects are in an "or" relationship.

[0060] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0061] In the related art, a multi-stage steam compressor includes a multi-stage compression section, each stage of the compression section is used to pressurize and heat the steam. The steam is pressurized and heated in sequence through the multi-stage compression section, thereby obtaining the required steam pressure by using step-by-step pressurization.

[0062] Typically, the exhaust gas temperature and superheat between the compressor and the next compressor, i.e., between stages, is higher during steam compression. Without proper exhaust cooling, the inlet temperature of the subsequent compressor stages in a multi-stage steam compressor will be high, increasing compression power consumption. Furthermore, high exhaust temperatures place higher material requirements on components such as the gearbox and seals of the centrifugal compressor, increasing material costs. Therefore, it is necessary to cool the superheated steam at the outlet of each stage.

[0063] Spray cooling is a highly efficient cooling method that uses spray water to absorb the heat of superheated steam, causing it to vaporize and evaporate, reducing the superheated steam between stages to saturated or near-saturated steam. This method converts the sensible heat of the superheated steam into latent heat, which is retained in the steam. This reduces compression power consumption, increases the outlet steam volume, and improves system energy efficiency. When the spray water between stages is completely vaporized, the following formula theoretically satisfies: m1h1+mwhw=h2mw+m1). Here, the superheated steam flow rate is m1, the heat of the superheated steam is h1, the spray water flow rate is mw, the heat of the spray water is hw, the flow rate of the steam cooled to saturated or near-saturated state is mw+m1, and the heat of the steam cooled to saturated or near-saturated state is h2.

[0064] However, when the distance between stages of a 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 evaporate completely, resulting in the phenomenon of liquid vapor impacting the impeller, reducing its life. In order 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 low-temperature spray water and superheated steam, the spray first absorbs the heat of the superheated steam to become saturated water, and the saturated water then absorbs the heat of the superheated steam to evaporate, that is, the water discharged from the steam-water separator is often high-temperature saturated water. If the high-temperature saturated water that has not evaporated 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, thereby limiting the improvement of the system's energy efficiency.

[0065] See also Figure 1 , an embodiment of the present application proposes a water vapor compressor device 2000, which includes at least two compression sections 2100 and a cooling system. The total number of stages of the compression section 2100 of the water vapor compressor can be 2 stages, 3 stages, 4 stages, or multiple stages. The compression section 2100 of each stage is used to pressurize and heat the steam. The steam is pressurized and heated in sequence through the multi-stage compression section 2100, thereby obtaining the required steam pressure by step-by-step pressurization. The cooling system is arranged between two adjacent stages of the compression section 2100, and performs heat exchange and cooling on the steam.

[0066] The cooling system includes a cooling pipe 2200 and a spray device 2300. The cooling pipe 2200 connects two adjacent compression sections 2100. The spray device 2300 includes a water pump 2310 and a nozzle 2330. The nozzle 2330 is connected to the cooling pipe 2200 to spray cooling water mist into the cooling pipe 2200 under the pumping of the water pump 2310. The cooling pipe 2200 is provided with a flow-disturbing structure 2210 to drive the cooling water mist and the steam discharged into the cooling pipe 2200 from the upstream compression section 2100 to mix and exchange heat, thereby achieving cooling.

[0067] In some embodiments, see Figure 2 The spoiler structure 2210 includes a first spoiler 2211 and a second spoiler 2212 arranged in the cooling pipe 2200, and the first spoiler 2211 and the second spoiler 2212 are arranged sequentially in the extension direction of the cooling pipe 2200; a plurality of first guide channels 2215 arranged at intervals are formed in the first spoiler 2211, and a plurality of second guide channels 2216 arranged at intervals are formed in the second spoiler 2212; wherein, the first guide channels 2215 and the second guide channels 2216 are both flat, and the thickness direction of the first guide channel 2215 and the thickness direction of the second guide channel 2216 form an angle. In some examples, the first spoiler 2211 includes a plurality of first spoilers 2213 spaced apart, with a first guide channel 2215 formed between two adjacent first spoilers 2213. The second spoiler 2212 includes a plurality of second spoilers 2214 spaced apart, with a first guide channel 2215 formed between two adjacent second spoilers 2214. It will be appreciated that by changing the extending direction of the first spoilers 2213 and the second spoilers 2214, an angle can be formed between the thickness direction of the first guide channel 2215 and the thickness direction of the second guide channel 2216.

[0068] With such a configuration, the water vapor discharged from the compression section 2100 of the previous stage will first pass through the first guide channel 2215 and then enter the second guide channel 2216. The thickness direction of the first guide channel 2215 and the thickness direction of the second guide channel 2216 have an angle, that is, the water vapor will change its movement direction when switching from the first guide channel 2215 to the second guide channel 2216 during its flow.

[0069] In some embodiments, there is a gap between the first spoiler 2211 and the second spoiler 2212 along the extension direction of the cooling pipe 2200, so that the soda-water mixture will be diverted when entering the first spoiler 2211, then merge at the gap, and then be diverted when entering the second spoiler 2212. It should be noted that when defining a first spoiler 2211 and a second spoiler 2212 as a group, the present application can set one group or multiple groups. Specifically, when switching from the first guide channel 2215 to the second guide channel 2216, the soda-water mixture is diverted, and the diverted soda-water mixture will merge again when entering the next spoiler unit. The continuous merging and diversion promotes the full mixing of the soda-water mixture. At the same time, the water vapor and the cooling water mist exchange heat intensely, achieving rapid cooling of the water vapor and rapid heating and evaporation of the cooling water mist.

[0070] In some embodiments, there is no gap between the first spoiler 2211 and the second spoiler 2212 along the extension direction of the cooling pipe 2200, so that the cooling pipe 2200 can be arranged more compactly, while achieving effective mixing and heat exchange of cooling water mist with water vapor, it can also save space and reduce the overall length of the cooling pipe 2200.

[0071] To further improve the mixing effect of water vapor and cooling mist, please refer to Figure 2 In some embodiments, the thickness direction of the first guide channel 2215 is perpendicular to the thickness direction of the second guide channel 2216. In this way, the first guide channel 2215 and the second guide channel 2216 have a better effect on water vapor diversion, thereby improving the mixing effect of water vapor and cooling spray.

[0072] To further enhance the mixing effect of water vapor and cooling water mist, in some embodiments, the thickness of the first guide channel 2215 is greater than or equal to the thickness of the second guide channel 2216. This increases the flow rate of the fluid as the water vapor flows from the first guide channel 2215 to the second guide channel 2216, significantly enhancing turbulence. This high-speed cutting and mixing of the vapor-liquid mixture promotes thorough mixing of the vapor-liquid mixture. The thickness of the first guide channel 2215 being greater than or equal to the thickness of the second guide channel 2216 can be achieved by varying the number of first and second spoilers 2213, 2214 disposed within the cooling duct 2200, or by varying the thickness of the first and second spoilers 2213, 2214.

[0073] In some embodiments, the thickness of the first flow guide channel 2215 decreases along the extension direction of the cooling pipe 2200. This allows the velocity of the gas-liquid mixture to gradually increase as it flows within the first flow guide channel 2215, significantly increasing turbulence. This high-speed cutting and mixing of the gas-liquid mixture allows the gas-liquid mixture to flow to the second flow guide channel 2216, where it experiences even greater turbulence during diversion, promoting thorough mixing of the gas-liquid mixture. The decreasing thickness of the first flow guide channel 2215 along the extension direction of the cooling pipe 2200 can be achieved by adjusting the diameter of the cooling pipe 2200 or by adjusting the thickness of the first spoiler 2213.

[0074] In some embodiments, the thickness of the second flow-guiding channel 2216 increases along the extension direction of the cooling pipe 2200. This allows the steam-water mixture to vary in speed during its flow, thereby improving the mixing effect of the water vapor and the cooling mist. It will be appreciated that in the embodiment where the thickness of the first flow-guiding channel 2215 decreases along the extension direction of the cooling pipe 2200, and the thickness of the second flow-guiding channel 2216 increases along the extension direction of the cooling pipe 2200, the steam-water mixture can continuously vary in speed during its flow, promoting thorough mixing of the steam-water mixture.

[0075] In some embodiments, see Figure 3 At least one of the first spoiler 2213 and the second spoiler 2214 is a corrugated plate 2218. The corrugated plate 2218 changes the velocity and pressure of the steam-water mixture along its flow path, and can also alter the direction or distribution of the flow, thereby generating turbulence. This turbulence increases contact between the water vapor and the cooling mist, enhancing the cooling effect of the water vapor.

[0076] Furthermore, the first spoiler 2213 and the second spoiler 2214 are both corrugated plates 2218, and the first spoiler 2213 and the second spoiler 2214 have different shapes. This allows the velocity and pressure of the steam-water mixture along the flow path within the first guide channel 2215 and the second guide channel 2216 to vary, further enhancing the cooling effect of the water vapor.

[0077] In some embodiments, the first spoiler 2213 is provided with a first protruding structure; or the second spoiler 2214 is provided with a first protruding structure; or both the first spoiler 2213 and the second spoiler 2214 are provided with a first protruding structure. The first protruding structure may be a bump, a plate, a cylinder, a cone, or the like, and this application does not limit the specific form of the first protruding structure. The provision of the first protruding structure may also cause changes in the velocity and pressure along the flow path of the soda-water mixture, and may also alter the direction or distribution of the soda-water mixture flow, thereby generating turbulence and promoting thorough mixing of the soda-water mixture.

[0078] In some embodiments, the spoiler structure 2210 includes multiple second protrusion structures, which protrude from the inner wall surface of the cooling pipe 2200 and are arranged at intervals along the extension direction of the cooling pipe 2200. The second protrusion structures can be set with reference to the form of the first protrusion structures.

[0079] In some embodiments, see Figure 4Cooling duct 2200 includes a mixing section 2217, which is a Venturi tube structure and forms a turbulent flow structure 2210. A nozzle 2330 is connected to the throat of the Venturi tube. Specifically, as air flows through the Venturi tube, it passes through a converging cross-section, which increases gas velocity and significantly increases turbulence. This high-speed cutting and mixing of the gas-liquid mixture promotes thorough mixing of the gas-liquid mixture.

[0080] It should be noted that the first spoiler 2211, the second spoiler 2212 and the mixing pipe section 2217 of the present application can be arranged in combination. For example, the high speed of the mixing pipe section 2217 can be used to enhance the mixing of water vapor and cooling water mist, and then the first spoiler 2211 and the second spoiler 2212 can be used to continuously divert and merge the steam-water mixture, so that the strong water vapor and cooling water mist are fully mixed and heat exchanged.

[0081] In some embodiments, see Figure 1 The water vapor compressor device 2000 further includes a gas-liquid separator 2400. The inlet of the gas-liquid separator 2400 is connected to the cooling pipe 2200 and is located downstream of the flow-turbulating structure 2210. The liquid outlet of the gas-liquid separator 2400 is connected to the spray device 2300, and the gas outlet is connected to the compression section 2100 of the next stage of the compression section 2100. In the case where the cooling water mist sprayed by the spray device 2300 does not fully exchange heat with the water vapor and evaporate, the cooling water mist can flow to the gas-liquid separator 2400, preventing water mist droplets from entering the compression section 2100 of the next stage, thereby preventing the occurrence of liquid hammer. At the same time, after the gas-liquid separator 2400 is set, the spray volume of the cooling water mist can be increased, thereby increasing the steam-water heat exchange area, further enhancing the heat exchange, and achieving the cooling target; finally, the unevaporated spray in the steam is efficiently separated by the gas-water separator to become low-superheated dry steam, and then enters the next stage compression part 2100 for compression. The inter-stage cooling for compressors with more stages is similar, and so on.

[0082] In some embodiments, please refer to Figure 1 The spray device 2300 further includes a control valve 2320, which connects the water pump 2310 and the nozzle 2330 and is configured to adjust the spray flow rate of the nozzle 2330. The water vapor compressor device 2000 further includes a detection component and a controller. The detection component is configured to detect the superheat of the gas between the spray device 2300 and the next-stage compression section 2100 of the compression section 2100. The controller is signal-connected to the detection component and the control valve 2320, respectively, and is configured to adjust the spray flow rate of the nozzle 2330 based on the gas superheat and a preset superheat until the gas superheat equals the preset superheat.

[0083] The detection assembly may include a temperature sensor and a pressure sensor disposed in the cooling pipe 2200. The pressure sensor may be Figure 1 Component P and temperature sensor in Figure 1 Component T in the cooling pipe 2200 detects the gas temperature using a temperature sensor and the gas pressure using a pressure sensor. The gas superheat is then determined based on the gas temperature and pressure. The gas superheat is the difference between the actual gas temperature (gas temperature) and the liquid-to-gas transition temperature, where the gas transitions from liquid to gas. The liquid-to-gas transition temperature can be obtained by looking up a table or calculating the temperature based on the gas pressure and the type of liquid. For example, when the gas pressure is 1 atmosphere, the liquid-to-gas transition temperature of water is 100°C. After obtaining the gas temperature and the current liquid-to-gas transition temperature obtained by looking up the gas pressure, the gas superheat is calculated by subtracting the gas temperature from the liquid-to-gas transition temperature.

[0084] The control valve 2320 adjusts the flow of the nozzle 2330 of the spray device 2300 according to the gas superheat and the preset superheat. It can be understood that when the gas superheat is greater than the preset superheat, the spray flow is increased; when the gas superheat is less than the preset superheat, the spray flow is reduced; when the gas superheat is equal to the preset superheat, the current spray flow is maintained.

[0085] In some embodiments, please refer to Figure 6 The water vapor compressor device 2000 also includes two first liquid level sensors 2410. The two first liquid level sensors 2410 are installed in the gas-liquid separator 2400 and are spaced apart in the height direction. Both first liquid level sensors 2410 are connected to the control valve 2320 by signal. Specifically, the two first liquid level sensors 2410 can be set at the highest and lowest values ​​of the preset water storage level. When the liquid level is higher than the first liquid level sensor 2410 at the top, it means that the liquid level is higher than the preset highest value. When the liquid level is higher than the first liquid level sensor 2410 at the bottom, it means that the liquid level is higher than the preset lowest value. The controller obtains the water storage level in the gas-liquid separator 2400 through the two first liquid level sensors 2410. If the water storage level and the preset value meet the set conditions, the control valve 2320 is controlled to adjust the spray flow of the nozzle 2330.

[0086] In some embodiments, please refer to Figure 14Spraying device 2300 also includes a water replenishment component 2510 and a heat recovery component 2520. The first liquid inlet of heat recovery component 2520 is connected to the liquid outlet of gas-liquid separator 2400, the second liquid inlet of heat recovery component 2520 is connected to water replenishment component 2510, and the liquid outlet of heat recovery component 2520 is connected to water pump 2310. Replenishment liquid is delivered to the second liquid inlet via water replenishment component 2510. Liquid heat energy is exchanged between the discharged liquid and the replenishment liquid in heat recovery component 2520. The liquid is then delivered to water pump 2310, spraying cooling water mist into cooling pipe 2200.

[0087] In some embodiments, see Figure 10 The water vapor compressor further includes a water tank 2600. The water inlet of the water tank 2600 is connected to the liquid outlet pipe of the gas-liquid separator 2400, and the water outlet of the water tank 2600 is connected to the water pump 2310. A steam trap 2700 is further provided between the pipe connecting the water tank 2600 and the gas-liquid separator 2400. The water tank 2600 is provided with a second liquid level sensor 2630 for detecting the liquid level in the water tank 2600.

[0088] In the water vapor compressor device 2000, the superheated steam discharged from the compression section 2100 is first sent to the next-stage compression section 2100 through the cooling pipe 2200. The cooling water is spray-cooled on the superheated steam in the cooling pipe 2200 through the water pump 2310, the control valve 2320 and the nozzle 2330. The gas-liquid mixture after the spray cooling treatment enters the gas-liquid separator 2200. The gas-liquid separator 2200 performs gas-liquid separation on the gas-liquid mixture. The obtained steam is transported to the next-stage compression section 2100 through the gas outlet 2230 of the gas-liquid separator 2200. The obtained sprayed unvaporized liquid enters the spray device 2300 through the liquid outlet of the gas-liquid separator 2200, and the superheated steam in the cooling pipe 2200 is spray-cooled again, thereby realizing the recovery of liquid and heat. Since the cooling pipe 2200 is provided with a turbulent flow structure 2100, it can promote mixing and heat exchange between high-temperature steam and low-temperature spray water, thereby ensuring that the cooling target is achieved. For example, Figure 1 The dashed arrows in the figure can represent the flow direction of water vapor, the dash-dot line can represent the flow direction of the steam-water mixture, and the solid arrows can represent the flow direction of liquid water.

[0089] See also Figure 7 The operation method of the water vapor compressor device of the present application can be as follows:

[0090] S202: Detecting the gas temperature and gas pressure of the cooling pipe, and determining the gas superheat based on the gas temperature and gas pressure.

[0091] S204: Obtain a preset superheat range for water vapor, and adjust the liquid flow of the control valve based on the gas superheat and the preset superheat range.

[0092] The preset superheat range for the water vapor within cooling pipe 2200 is determined based on the structure and component materials of the water vapor compressor. When the steam superheat is within the preset range, damage to the components of the water vapor compressor caused by high-temperature steam can be effectively avoided. When the steam superheat exceeds the maximum value of the preset superheat range, damage to components of the water vapor compressor caused by high-temperature steam can occur. When the steam superheat is less than the minimum value of the preset superheat range, it indicates that the spray device 2300 is overcooling, potentially affecting steam generation efficiency.

[0093] The preset superheat range may be [∆Tset-ε, ∆Tset+ε], where ∆Tset is a preset superheat, which may be 10°C or other values ​​set based on the structure and component materials of the water vapor compressor, and ε represents the allowable control accuracy, such as ε may be 0.5°C, 1°C, 2°C, etc.

[0094] By comparing the gas superheat with a preset superheat range, it is determined whether the steam superheat is within the preset superheat range. If the steam superheat is not within the preset superheat range, it is determined whether the steam superheat is greater than the maximum or minimum value of the preset superheat range. Control valve 2320 is then adjusted accordingly to adjust the liquid flow rate corresponding to the spray water, thereby adjusting the cooling effect of the superheated steam discharged from the compressor 2100 in the cooling pipe 220. This effectively cools the superheated steam discharged from the compressor 3100 while simultaneously recovering the heat from the sprayed unvaporized liquid and the sprayed unvaporized liquid.

[0095] Since a gas-liquid separator 2400 is provided between the compression section 2100 of the water vapor compressor device 2000 provided in the present application and the next-stage compression section 2100, the flow rate of the cooling water mist can be slightly excessive.

[0096] Specifically, when the cooling water mist passing through the turbulent structure 2210 is completely vaporized, the following formula is theoretically satisfied: maha + mbhb = hcma + mb); wherein the flow rate of the superheated steam discharged from the compressor 2100 is ma, the heat of the superheated steam discharged from the compressor 2100 is ha, the flow rate of the spray water is mb, the heat of the spray water is hb, the total flow rate of the spray water after the spray water and the superheated steam discharged from the compressor 2100 are mixed, the spray water is completely vaporized, and the mixed steam is cooled to a saturated or near-saturated state is ma + mb, and the total heat of the spray water after the spray water and the superheated steam discharged from the compressor 2100 are mixed, the spray water is completely vaporized, and the mixed steam is cooled to a saturated or near-saturated state is hc. The unit of flow rate can be kg / s, and the unit of heat can be KJ / kg. In the embodiment provided in the present application, since a gas-liquid separator 2400 is provided between the compression section 2100 of the water vapor compressor device 2000 and the next-stage compression section 2100, the spray water flow rate can be slightly excessive, that is, the actual spray water flow rate mactual in the embodiment of the present application should be controlled to be greater than mb, thereby enhancing the heat exchange effect and cooling effect.

[0097] In the embodiment provided in the present application, a spray device 2300 is provided between the compression section 2100 of the water vapor compressor device 2000 and the next-stage compression section 2100, thereby realizing spray cooling of the superheated steam discharged from the compression section 2100 and not yet entering the next-stage compression section 2100, and at the same time utilizing the gas-liquid separator 2400 to separate the gas-liquid mixture between the stages after the spray cooling. Since the liquid outlet pipe of the gas-liquid separator 2400 is connected to the control valve 2320 through the water pump 2310, the liquid remaining after the spray cooling can be re-separated. The stored liquid is sprayed and reused, and the superheated steam discharged from the compression section 2100 and not yet entering the next stage compression section 2100 is spray-cooled again, so that all the heat taken away by the spray cooling is retained in the water vapor compressor system, which can effectively increase the evaporation rate of the liquid in the water vapor compressor. In addition, the temperature of the liquid retained after spray cooling will increase, further increasing the evaporation rate of the liquid in the water vapor compressor, so that the outlet pipe of the gas-liquid separator 2400 can transport more steam to the next stage compression section 2100 of the compression section 2100. At the same time, please refer to Figure 5 By detecting the gas temperature and gas pressure in the outlet pipe, the gas superheat in the outlet pipe of the gas-liquid separator 2400 is determined, and the gas superheat and the preset superheat range are used to adjust the liquid flow of the control valve 2320, thereby adjusting the spray water flow, thereby achieving heat recovery of the sprayed unvaporized liquid and the sprayed unvaporized liquid, and effectively cooling the superheated steam discharged from the compression part 2100.

[0098] In other embodiments, when the sprayed unvaporized liquid and the heat of the sprayed unvaporized liquid are not recovered and external water supply is used for spray cooling, the theoretical thermodynamic process is as follows:

[0099] minhin+mwhw=mouthout+mshs; wherein, min is the steam flow rate discharged from the compression section 2100, hin is the steam heat discharged from the compression section 2100, mw is the water flow rate for spray cooling with external water supply, hw is the water heat for spray cooling with external water supply, mout is the steam flow rate of the next-stage compression section 2100 transported to the compression section 2100, hout is the steam flow rate of the next-stage compression section 2100 transported to the compression section 2100, ms is the liquid flow rate of the sprayed unvaporized liquid, and hs is the liquid heat of the sprayed unvaporized liquid.

[0100] In the embodiment provided in this application, when both the sprayed unvaporized liquid and the heat of the sprayed unvaporized liquid are recovered, the theoretical thermodynamic process is as follows:

[0101] mout'hout'=min'hin'+ma'ha', where mout' is the steam flow rate delivered to the next-stage compressor 2100 of the compressor 2100, hout' is the steam flow rate delivered to the next-stage compressor 2100 of the compressor 2100, min' is the steam flow rate discharged from the compressor 2100, hin' is the heat of the steam discharged from the compressor 2100, ma' is the water flow rate of the external additional water for spray cooling, and ha' is the heat of the water for spray cooling. Because the high-temperature spray formed after the recovery of the unvaporized liquid spray has a higher evaporation rate when achieving the same cooling target in the embodiments provided in this application, the outlet steam volume will be greater, that is, mout' is greater than mout.

[0102] In the embodiment provided in this application, the liquid flow rate of the control valve is adjusted based on the gas superheat and the preset superheat range in S204, including:

[0103] The superheat control type is determined based on the gas superheat and the preset superheat range, and the liquid flow of the control valve is adjusted using the superheat control method corresponding to the superheat control type.

[0104] Among them, the superheat control types can include three types, corresponding to the gas superheat being within the preset superheat range, the gas superheat being greater than the maximum value of the preset superheat range, and the gas superheat being less than the minimum value of the preset superheat range.

[0105] When the superheat of the steam is in the preset superheat range, the damage of high-temperature steam to the components in the water vapor compressor can be effectively avoided. At this time, the control valve 2320 does not need to be adjusted accordingly, that is, the current state is maintained; when the superheat of the steam is greater than the maximum value of the preset superheat range, it may cause high-temperature steam to damage the components in the water vapor compressor. At this time, the valve opening of the control valve 2320 can be increased to increase the liquid flow rate of the spray water; when the superheat of the steam is less than the minimum value of the preset superheat range, it indicates that the spray device 2300 is over-cooled, which may affect the steam generation efficiency. At this time, the valve opening of the control valve 2320 can be reduced or closed to reduce the liquid flow rate of the spray water.

[0106] In the embodiment provided in the present application, the corresponding superheat control type is determined using the gas superheat and the preset superheat range, so that the superheat control method corresponding to the superheat control type is used to accurately adjust the liquid flow of the control valve 2320, thereby effectively cooling the superheated steam discharged from the compression part 2100.

[0107] See also Figure 7 , Figure 7 This is a flow chart of a method for regulating the liquid flow of a control valve 2320 provided in an embodiment of the present application. Figure 7 As shown, first, S302 determines the superheat control type based on the gas superheat and the preset superheat range. Then, the liquid flow rate of the control valve 2320 is adjusted using the superheat control method corresponding to the superheat control type. Specifically, adjusting the liquid flow rate of the control valve 2320 using the superheat control method corresponding to the superheat control type includes:

[0108] S304: When the gas superheat is greater than the maximum value of the preset superheat range, the superheat control type is determined to be the first superheat control mode, and the control valve is adjusted based on the first superheat control mode to increase the liquid flow rate.

[0109] 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 mode. The first superheat control mode is used to adjust the control valve 2320 to increase the valve opening corresponding to the control valve 2320, and then perform liquid flow increase processing, thereby increasing the liquid flow of the spray water, improving the spray cooling effect, and thus reducing the gas superheat.

[0110] S306: When the gas superheat is less than the minimum value of the preset superheat range, the superheat control type is determined to be the second superheat control mode, and the control valve is adjusted based on the second superheat control mode to reduce the liquid flow rate.

[0111] 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 mode. The second superheat control mode is used to adjust the control valve 2320 to reduce the valve opening corresponding to the control valve 2320, and then perform liquid flow reduction processing, thereby reducing the liquid flow of the spray water, weakening the spray cooling effect, and increasing the gas superheat.

[0112] S308: When the gas superheat is within the preset superheat range, determining that the superheat control type is a third superheat control mode, and stopping regulating the control valve based on the third superheat control mode.

[0113] Among them, when the gas superheat is within the preset superheat range, the superheat control type is the third superheat control mode, and the third superheat control mode is used to maintain the current state of the control valve 2320, so that the gas superheat is always within the preset superheat range.

[0114] In the embodiments provided herein, when the superheat of the steam exceeds the maximum value of the preset superheat interval, the high-temperature steam may damage components in the water vapor compressor. When the superheat of the steam is less than the minimum value of the preset superheat interval, it indicates that the spray device 2300 is overcooled, which may affect steam generation efficiency. Therefore, the gas superheat and the preset superheat interval are used to determine the corresponding superheat control type, and the superheat control method corresponding to the superheat control type is used to accurately adjust the liquid flow rate of the control valve 2320, so that the superheat of the gas obtained by mixing the superheated steam discharged from the compressor 2100 and the spray can be within the preset superheat interval, thereby effectively cooling the superheated steam discharged from the compressor 2100.

[0115] See also Figure 8 , Figure 8 This is a flow chart of a water level adjustment process provided in an embodiment of the present application. Figure 8 As shown, the operating method of the water vapor compressor also includes:

[0116] S402: Detect the water level of the gas-liquid separator.

[0117] Among them, the bottom of the gas-liquid separator 2400 is a water storage chamber, the top of the gas-liquid separator 2400 is an air chamber, the water storage chamber and the air chamber are connected to each other, the water storage chamber of the gas-liquid separator 2400 is connected to the liquid outlet pipe of the gas-liquid separator 2400, and the air chamber of the gas-liquid separator 2400 is connected to the air outlet pipe of the gas-liquid separator 2400.

[0118] A liquid level sensor may be installed in the water storage chamber of the gas-liquid separator 2400 , and the liquid level sensor is used to detect the height of the water level in the water storage chamber of the gas-liquid separator 2400 .

[0119] S404: Obtain a first preset liquid level height interval corresponding to the gas-liquid separator, determine a liquid level height control type based on the water storage level and the first preset liquid level height interval, and perform water storage level height adjustment processing based on the liquid level height control type.

[0120] The first preset liquid level interval includes a first preset liquid level upper limit and a first preset liquid level lower limit. The first preset liquid level upper limit can be determined based on a set safety time during which the gas-liquid separator 2400 supplies water to the spray device 2300 at a set flow rate without external water replenishment. Specifically, the mass or volume of the liquid in the gas-liquid separator 2400 can be determined based on the product of the safety time and the set flow rate, thereby determining the first preset liquid level upper limit. Simultaneously, the first preset liquid level lower limit of the gas-liquid separator 2400 can be determined based on the minimum pressure value of the water pump 2310 to avoid cavitation.

[0121] When the water level is greater than the upper limit of the first preset liquid level in the first preset liquid level interval, it indicates that there is too much liquid in the gas-liquid separator 2400, and the water level adjustment can be stopped. When the water level is less than the lower limit of the first preset liquid level in the first preset liquid level interval, it indicates that there is too little liquid in the gas-liquid separator 2400, and the water level can be adjusted to increase the water level to the upper limit of the first preset liquid level or slightly above the upper limit of the first preset liquid level. When the water level is within the first preset liquid level interval, the water level adjustment can be stopped, or the water level can be adjusted to increase the water level continuously or intermittently. The water level adjustment process can be based on the water replenishment control valve.

[0122] In the embodiment provided in the present application, the liquid level height control type is determined based on the water storage level height and the first preset liquid level height interval, and the water storage level height adjustment processing is performed based on the liquid level height control type, so that the water level in the gas-liquid separator 2400 is in a reasonable range, avoiding cavitation of the water pump 2310, and ensuring that the time for the gas-liquid separator 2400 to supply water to the spray device 2300 at a set flow rate meets the set safety time.

[0123] See also Figure 9 , Figure 9 This is another flow chart of adjusting the water level provided in the embodiment of the present application. Figure 9 As shown, in S404, the liquid level control type is determined based on the water level and the first preset liquid level interval, and the water level adjustment process is performed based on the liquid level control type, including:

[0124] S502: performing a liquid level comparison process on the water storage level and the first preset liquid level interval.

[0125] Among them, after comparing the water storage level height and the first preset liquid level height interval, three situations can be obtained, namely, the water storage level height is greater than the first preset liquid level height upper limit value of the first preset liquid level height interval, the water storage level height is less than the first preset liquid level height lower limit value of the first preset liquid level height interval, and the water storage level height is within the first preset liquid level height interval.

[0126] S504: When the water level is less than the minimum value of the first preset level range, the level control type is determined to be the first level control mode, and water storage and supply processing is performed based on the first level control mode to increase the water level.

[0127] Among them, the water storage level height is less than the minimum value of the first preset liquid level height interval, indicating that there is too little liquid in the gas-liquid separator 2400, then the liquid level height control type is the first liquid level height control method, and the water storage level height can be adjusted based on the first liquid level height control method to increase the water storage level height to the first preset liquid level height upper limit value or slightly greater than the first preset liquid level height upper limit value.

[0128] S506: When the water storage level is greater than or equal to the maximum value of the first preset liquid level range, the liquid level control type is determined to be the second liquid level control mode, and the water storage and supply process is terminated based on the second liquid level control mode.

[0129] Among them, the water storage level height is greater than or equal to the maximum value of the first preset liquid level height interval, indicating that there is too much liquid in the gas-liquid separator 2400, and the water storage level height adjustment can be stopped. At this time, the water storage and supply processing can be ended based on the second liquid level height control method.

[0130] In addition, when the water level is within the first preset level interval, the water level adjustment may be stopped, or the water level may be adjusted to increase continuously or intermittently.

[0131] In the embodiment provided in the present application, the liquid level height of the water storage is compared with the first preset liquid level height interval to determine the corresponding liquid level height control type, so that the water level in the gas-liquid separator 2400 is in a reasonable range, avoiding cavitation of the water pump 2310 while ensuring that the time for the gas-liquid separator 2400 to supply water to the spray device 2300 at a set flow rate meets the set safety time.

[0132] like Figure 11As shown (compression section 2100 and the next-stage compression section 2100 are not shown), the water vapor compressor further includes a water tank 2600. The water inlet of water tank 2600 is connected to the liquid outlet pipe of gas-liquid separator 2400, and the water outlet of water tank 2600 is connected to water pump 2310. A steam trap 2700 is also provided between the pipe connecting water tank 2600 and gas-liquid separator 2400. Water tank 2600 is provided with two second liquid level sensors 2630, spaced apart in height. Both second liquid level sensors 2630 are signal-connected to control valve 2320. Specifically, the two second liquid level sensors 2630 can be located at the highest and lowest preset liquid level values. When the liquid level is higher than the top second liquid level sensor 2630, it indicates that the liquid level is above the preset highest value. When the liquid level is higher than the bottom second liquid level sensor 2630, it indicates that the liquid level is above the preset lowest value. Thus, the second liquid level sensor 2630 can detect the liquid level height of the water tank 2600. Specifically, the operation method of the water vapor compressor device 200 further includes:

[0133] S702: Detect the liquid level of the water tank.

[0134] The liquid level height in the water tank 2600 is detected based on the second liquid level sensor 2630 , thereby obtaining the liquid level height of the water tank 2600 .

[0135] S704: Obtain a second preset liquid level height interval corresponding to the water tank, determine a water tank liquid level height control type based on the water tank liquid level and the second preset liquid level height interval, and perform water tank liquid level height adjustment processing based on the water tank liquid level height control type.

[0136] The second preset liquid level interval corresponding to water tank 2600 includes a second preset liquid level upper limit and a second preset liquid level lower limit. The second preset liquid level upper limit can be determined based on a set safety time period during which water tank 2600 supplies water to spray device 2300 at a set flow rate without external water replenishment. Specifically, the mass or volume of liquid in water tank 2600 can be determined based on the product of the safety time period and the set flow rate, thereby determining the second preset liquid level upper limit. The second preset liquid level lower limit of water tank 2600 can also be determined based on the minimum pressure value of water pump 2310 to avoid cavitation.

[0137] Afterwards, the second preset liquid level height interval corresponding to the water tank 2600 is compared with the water tank 2600 liquid level height of the water tank 2600 to determine the water tank 2600 liquid level height control type. Finally, the water tank 2600 liquid level height is adjusted based on the water tank 2600 liquid level height control type, so that the water tank 2600 liquid level height in the water tank 2600 falls within the appropriate range.

[0138] In the embodiment provided in the present application, the liquid level height control type of the water tank 2600 is determined based on the liquid level height of the water tank 2600 and the second preset liquid level height interval, and the liquid level height of the water tank 2600 is adjusted based on the liquid level height control type of the water tank 2600, so that the water level in the water tank 2600 is within a reasonable range, avoiding cavitation of the water pump 2310, and ensuring that the time for the water tank 2600 to supply water to the spray device 2300 at a set flow rate meets the set safety time.

[0139] See also Figure 12 In S704, the water tank liquid level height control type is determined based on the water tank liquid level and the second preset liquid level height interval, and the water tank liquid level height adjustment process is performed based on the water tank liquid level height control type, including:

[0140] S802: Compare the water tank liquid level with the second preset liquid level interval.

[0141] Among them, after comparing the liquid level height of water tank 2600 and the second preset liquid level height interval, three situations can be obtained, namely, the liquid level height of water tank 2600 is greater than the second preset liquid level height upper limit value of the second preset liquid level height interval, the liquid level height of water tank 2600 is less than the second preset liquid level height lower limit value of the second preset liquid level height interval, and the liquid level height of water tank 2600 is within the second preset liquid level height interval.

[0142] S804: When the water tank liquid level is less than the minimum value of the second preset liquid level range, determine that the water tank liquid level control type is the first water tank liquid level control method, and perform water tank water supply processing based on the first water tank liquid level control method to increase the water tank liquid level.

[0143] Among them, the liquid level height of water tank 2600 is less than the minimum value of the second preset liquid level height interval, indicating that there is too little liquid in water tank 2600, then the liquid level height control type of water tank 2600 is the first water tank 2600 liquid level height control method, and the water supply processing of water tank 2600 can be performed based on the first water tank 2600 liquid level height control method, and the liquid level height of water tank 2600 can be adjusted to increase the liquid level height of water tank 2600 to the second preset liquid level height upper limit value or slightly larger than the second preset liquid level height upper limit value.

[0144] S806: When the water tank liquid level is greater than or equal to the maximum value of the second preset liquid level range, determine that the water tank liquid level control type is the second water tank liquid level control mode, and end the water tank water supply process based on the second water tank liquid level control mode.

[0145] Among them, the liquid level height of water tank 2600 is greater than or equal to the maximum value of the second preset liquid level height range, indicating that there is too much liquid in water tank 2600, and the adjustment of the liquid level height of water tank 2600 can be stopped. At this time, the water supply processing of water tank 2600 can be ended based on the second water tank 2600 liquid level height control method.

[0146] In addition, when the liquid level of the water tank 2600 is within the second preset liquid level interval, the liquid level of the water tank 2600 can be stopped from being adjusted, or the liquid level of the water tank 2600 can be adjusted to continuously or intermittently increase the liquid level of the water tank 2600.

[0147] In the embodiment provided in the present application, the liquid level height of the water tank 2600 is compared with the second preset liquid level height interval to determine the corresponding liquid level height control type of the water tank 2600, so that the water level in the water tank 2600 is within a reasonable range, avoiding cavitation of the water pump 2310 and ensuring that the time for the water tank 2600 to supply water to the spray device 2300 at a set flow rate meets the set safety time.

[0148] See also Figure 13 , the operating method of the water vapor compressor device 200 further includes:

[0149] S902: Performing a liquid quality test on the liquid outlet pipe of the gas-liquid separator to obtain the liquid outlet spray water quality parameters.

[0150] Among them, the water quality of the liquid discharged from the liquid outlet pipe of the gas-liquid separator 2400 may not meet the water quality requirements for recycling. Therefore, the liquid outlet pipe of the gas-liquid separator 2400 is tested for liquid quality 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.

[0151] S904: If the water quality parameters of the liquid spray outlet meet the liquid outlet recovery conditions, the discharge liquid of the liquid outlet pipe is used to perform a first water supply treatment on the water pump.

[0152] Among them, when the water quality parameters of the liquid spray meet the liquid recovery conditions, the discharged liquid from the liquid outlet pipe can be directly used to perform the first water supply treatment on the water pump 2310, so that the sprayed unvaporized liquid and the heat of the sprayed unvaporized liquid can be doubly recovered.

[0153] S906: If the outlet spray water quality parameters do not meet the outlet liquid recovery conditions, the liquid discharged from the outlet pipe is treated with liquid heat energy recovery liquid using supplementary liquid to obtain spray supplementary liquid, and the spray supplementary liquid is used to perform a second water supply treatment on the water pump 2310.

[0154] Among them, when the water quality parameters of the liquid spray do not meet the liquid recovery conditions, the liquid discharged from the liquid outlet pipe is treated with liquid heat energy recovery liquid to obtain spray supplementary liquid, so that the heat of the sprayed unvaporized liquid can be recovered, and then the spray supplementary liquid is used to perform a second water supply treatment on the water pump 2310.

[0155] In the embodiment provided in the present application, by judging whether the outlet spray water quality parameters meet the outlet liquid recovery conditions, and then judging whether to perform dual recovery of the sprayed unvaporized liquid and the heat of the sprayed unvaporized liquid, when the outlet spray water quality parameters meet the outlet liquid recovery conditions, the discharge liquid of the outlet pipe can be directly used to perform the first water supply treatment on the water pump 2310, so that the sprayed unvaporized liquid and the heat of the sprayed unvaporized liquid can be dually recovered; when the outlet spray water quality parameters do not meet the outlet liquid recovery conditions, the discharge liquid of the outlet pipe is treated with liquid heat energy recovery liquid to obtain sprayed supplementary liquid, so that the heat of the sprayed unvaporized liquid can be recovered, and then the sprayed supplementary liquid is used to perform the second water supply treatment on the water pump 2310.

[0156] See also Figure 14 The spray device 2300 further includes a water replenishment component 2510 and a heat recovery component 2520. The first liquid inlet of the heat recovery component 2520 is connected to the liquid outlet pipe, the second liquid inlet of the heat recovery component 2520 is connected to the water replenishment component 2510, and the liquid outlet of the heat recovery component 2520 is connected to the water pump 2310 ( Figure 13 Water pump 2310 is not shown); please refer to Figure 10 The liquid outlet pipe is also provided with a steam trap 2700 and a drainage circulation pump. The water replenishment component 2510 may include a spray water replenishment pump 2310, and the heat recovery component 2520 may include a heat exchanger for drainage recovery.

[0157] In S906, liquid heat energy recovery is performed on the liquid discharged from the liquid outlet pipe using the supplementary liquid to obtain spray supplementary liquid, and the spray supplementary liquid is used to perform a second water supply process on the water pump, including:

[0158] The discharged liquid from the liquid outlet pipe is transported to the first liquid inlet, and the supplementary liquid is transported to the second liquid inlet through the water replenishment component 2510. The discharged liquid and the supplementary liquid are subjected to liquid heat energy exchange treatment in the heat energy recovery component 2520 to obtain waste liquid and spray supplementary liquid, and the spray supplementary liquid is driven to be transported to the water pump 2310 through the liquid outlet.

[0159] The liquid outlet is connected to the water replenishment component 2510 and is connected to the second liquid inlet. The liquid discharged from the liquid outlet pipe is transported to the first liquid inlet and can be discharged through the second liquid inlet. Figure 1 The water pump 2310, control valve 2320 and cooling pipe 2200 in the liquid outlet pipe can be transported to the first liquid inlet and then recycled after water treatment by the liquid recovery module (deaerator, soft water tank 2600, etc.). The circuit after the liquid is transported to the first liquid inlet can be determined based on whether the water quality parameters of the liquid spray meet the liquid recovery conditions. When the water quality parameters of the liquid spray meet the liquid recovery conditions, the liquid discharged from the liquid outlet pipe can be transported to the first liquid inlet and then recycled. Figure 1 The water pump 2310 and the control valve 2320 are connected to the cooling pipe 2200; when the water quality parameters of the liquid spray do not meet the liquid recovery conditions, the discharged liquid from the liquid outlet pipe is transported to the first liquid inlet and can be recycled after water treatment in the liquid recovery module (deaerator, soft water tank 2600, etc.).

[0160] In this embodiment, because the discharge spray water quality parameters do not meet the discharge liquid recovery conditions, a spray replenishment liquid is used to perform a second water supply treatment on water pump 2310. Therefore, the discharge liquid from the discharge pipe is transported to the first liquid inlet and then processed by the liquid recovery module before being recovered. The discharge liquid undergoes liquid heat exchange to produce waste liquid, and the replenishment liquid undergoes liquid heat exchange to produce spray replenishment liquid.

[0161] In the embodiment provided in the present application, the liquid discharged from the liquid outlet pipe is subjected to liquid heat recovery treatment by replenishing the liquid to obtain spray replenishing liquid, so that the heat of the sprayed unvaporized liquid can be recovered.

[0162] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "up", "down", "left", "right", etc. indicate directions or positional relationships, they are based on the directions or positional relationships shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0163] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cooling system, characterized in that: include: Cooling pipes; as well as A spraying device, comprising a water pump and a nozzle; the nozzle is connected to the cooling pipe to spray cooling water mist into the cooling pipe under the pumping of the water pump; Wherein, a turbulent flow structure is provided on the cooling pipe, and the turbulent flow structure is used to drive the cooling water mist and the steam discharged into the cooling pipe from the upstream compression part to mix.

2. The cooling system according to claim 1, wherein: The spoiler structure includes a first spoiler and a second spoiler provided in the cooling pipe, wherein the first spoiler and the second spoiler are arranged in sequence in the extending direction of the cooling pipe; A plurality of first flow guide channels arranged at intervals are formed in the first flow spoiler, and a plurality of second flow guide channels arranged at intervals are formed in the second flow spoiler; The first flow guiding channel and the second flow guiding channel are both flat, and a thickness direction of the first flow guiding channel and a thickness direction of the second flow guiding channel form an angle.

3. The cooling system according to claim 2, wherein: The thickness direction of the first guide channel is perpendicular to the thickness direction of the second guide channel.

4. The cooling system according to claim 2, wherein: The thickness of the first flow guiding channel is greater than or equal to the thickness of the second flow guiding channel.

5. The cooling system according to claim 2, wherein: The thickness of the first flow guiding channel decreases along the extending direction of the cooling pipe; and / or The thickness of the second flow guiding channel increases along the extending direction of the cooling pipe.

6. The cooling system according to claim 2, wherein: There is a gap between the first spoiler and the second spoiler along the extending direction of the cooling pipe.

7. The cooling system according to claim 2, wherein: There is no gap between the first spoiler and the second spoiler along the extending direction of the cooling pipe.

8. The cooling system according to any one of claims 2 to 7, characterized in that The first spoiler includes a plurality of first spoilers arranged at intervals, and the first guide channel is formed between two adjacent first spoilers. The second spoiler includes a plurality of second spoilers arranged at intervals, and the first guide channel is formed between two adjacent second spoilers.

9. The cooling system according to claim 8, wherein: At least one of the first spoiler and the second spoiler is a corrugated plate; Alternatively, the first spoiler and the second spoiler are both corrugated plates, and the first spoiler and the second spoiler have different shapes; Alternatively, a first protruding structure is further provided on the first spoiler and / or the second spoiler.

10. The cooling system according to claim 1, wherein: The cooling pipe includes a mixing pipe section, which is a venturi tube structure. The flow-turbulating structure is arranged inside the venturi tube cavity, and the nozzle is connected to the throat position of the venturi tube.

11. The cooling system according to claim 1, wherein: The spoiler structure includes a plurality of second protrusion structures, which protrude from the inner wall surface of the cooling pipe and are arranged at intervals along the extension direction of the cooling pipe.

12. A water vapor compressor device, characterized in that: include: at least two compression sections; as well as The cooling system according to any one of claims 1 to 11; The cooling pipe connects the two adjacent compression parts, and the nozzle is connected to the cooling pipe to spray cooling water mist into the cooling pipe under the pumping of the water pump; Wherein, a turbulent flow structure is provided on the cooling pipe, and the turbulent flow structure is used to drive the cooling water mist and the steam discharged into the cooling pipe from the upstream compression part to mix and exchange heat.

13. The water vapor compressor device according to claim 12, characterized in that The spraying device further includes a control valve, which is connected to the water pump and the nozzle and is configured to adjust the spray flow rate of the nozzle; The water vapor compressor equipment also includes: a detection assembly configured to detect superheat of gas between the spray device and a compression section of a next stage of the compression section; The controller is respectively connected to the detection component and the control valve signal, and is configured to adjust the spray flow of the nozzle based on the preset superheat and the gas superheat until the gas superheat is equal to the preset superheat.

14. The water vapor compressor device according to claim 13, characterized in that It also includes a gas-liquid separator, the inlet of which is connected to the cooling pipe and is located downstream of the flow-disturbing structure. The liquid outlet of the gas-liquid separator is connected to the spray device, and the gas outlet is connected to the next level compression part of the compression part.

15. The water vapor compressor device according to claim 14, characterized in that It also includes two first liquid level sensors, which are installed on the gas-liquid separator and spaced apart in the height direction, and are both connected to the control valve signal; The controller is configured to: obtain the water level height in the gas-liquid separator through the first liquid level sensor, and if the water level height and a preset value meet a set condition, control the control valve to adjust the spray flow of the nozzle.

16. The water vapor compressor device according to claim 14, characterized in that The spray device also includes a water replenishment component and a heat recovery component. The first liquid inlet of the heat recovery component is connected to the liquid outlet of the gas-liquid separator, the second liquid inlet of the heat recovery component is connected to the water replenishment component, and the liquid outlet of the heat recovery component is connected to the water pump.

17. The water vapor compressor device according to claim 14, characterized in that It also includes a water tank and two second liquid level sensors, the water inlet of the water tank is connected to the liquid outlet pipe of the gas-liquid separator, the water outlet of the water tank is connected to the water pump, the two second liquid level sensors are arranged in the water tank and are spaced apart in the height direction, and the two second liquid level sensors are used to detect the liquid level height in the water tank.

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