Spray type water working medium quasi-saturated compression high-temperature heat pump system

Abstract

The invention provides a spray type water working medium quasi-saturated compression high-temperature heat pump system, and belongs to the field of compression heat pumps. The problems that in the water vapor compression process, the exhaust degree is large, and large-amplitude temperature rise flexible heat supply is difficult to achieve are solved. The system comprises a condenser, an expansion valve, a liquid storage tank, an evaporator, a compressor, an atomization buffer tank, a gas-liquid jet atomizer and a regulating valve, the atomization mode comprises a gas-liquid ejector atomization mode, a high-pressure condensate + atomization nozzle mode or an atomization high-pressure pump + atomization nozzle mode, and is used for preparing atomized liquid drops with the particle size of 50-500 nm for quasi-saturation compression; or single-stage compression is further optimized into a two-stage compression form, so that higher heating temperature and more stable system operation are realized. The micro-nano spraying technology is utilized, the mass fraction of liquid in mixed airflow is always kept between 5% and 10%, heat conversion in the system can be achieved, and through multi-stage continuous phase change cooling, the superheat degree of compressed exhaust is effectively reduced, and compression power consumption is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of compression heat pumps, and in particular to a spray-type water working medium quasi-saturated compression high-temperature heat pump system. Background Art

[0002] Water is an excellent working fluid for high-temperature heat pump cycles, boasting a high critical temperature and large latent heat of vaporization. Furthermore, as the evaporation temperature increases, the corresponding water vapor density increases significantly, and the compression ratio decreases. A high-temperature heat pump based on water vapor compression utilizes an evaporator to absorb heat from wastewater under a certain heat transfer temperature differential. The compressed, high-temperature, high-pressure refrigerant vapor (e.g., saturation temperature of 150°C) enters the condenser to release heat, replacing the raw steam used in traditional processes (steam supplied externally as a suitable heat source for the evaporation side, which has not been heated). However, due to the thermal properties of water vapor, such as its high adiabatic index and large specific heat capacity, the exhaust gas superheat during the compression process is very high. Therefore, seeking a quasi-saturated compression technology to continuously absorb the heat converted from work to heat during the compression process could fundamentally address this problem.

[0003] The most common form of vapor compression is the single-stage compression system, which offers the advantages of a simple structure, a small number of equipment components, easy control and maintenance, and low initial investment and operating costs. For operating conditions with small to medium temperature differences, high evaporating temperatures, or moderate condensing temperatures, single-stage compression can operate efficiently and stably. However, for systems with large temperature rises, single-stage compression can lead to excessively high exhaust temperatures and increased compressor loads, which can lead to decreased efficiency and shortened equipment life in long-term operation. Multi-stage compression systems typically use two or more stages in series, with intermediate liquid spray cooling between stages, so that each stage has a smaller pressure ratio. This has the advantage of significantly reducing exhaust temperatures and compressor loads, improving overall isentropic efficiency and system stability, and is particularly suitable for operating conditions such as high-temperature heads and large temperature differences. However, the increased number of equipment leads to a more complex structure, requiring more stringent system control, requiring consideration of multi-stage coordination and control and adjustment of the liquid spray ratio. Summary of the Invention

[0004] The technical problems to be solved by the present invention are:

[0005] In order to solve the problem that the water vapor compression process has a large exhaust degree and is difficult to achieve flexible heating with a large temperature rise.

[0006] The present invention is to solve the above technical problems using the following technical solutions:

[0007] The present invention provides a spray-type water working medium quasi-saturated compression high-temperature heat pump system, comprising a condenser, a first expansion valve, a first liquid storage tank, an evaporator, a first compressor, a first atomization buffer tank, a first gas-liquid injection atomizer, a first baffle, a first regulating valve and a second regulating valve.

[0008] The condenser is provided with a hot water inlet and a hot water outlet.

[0009] The evaporator is equipped with a low-level heat source water inlet and a low-level heat source water outlet.

[0010] The refrigerant outlet of the evaporator is connected to the left air inlet of the first atomizing buffer tank, the steam outlet of the first atomizing buffer tank is connected to the inlet of the first compressor, the outlet of the first compressor is respectively connected to the refrigerant inlet of the condenser and the mainstream inlet of the first gas-liquid jet atomizer, the refrigerant outlet of the condenser is connected to the liquid inlet of the first expansion valve, the liquid outlet of the first expansion valve is connected to the liquid inlet of the first liquid storage tank, and the bottom liquid outlet of the first liquid storage tank is connected to the refrigerant inlet of the evaporator.

[0011] A first regulating valve is provided on the pipeline connecting the outlet end of the first compressor and the mainstream inlet end of the first gas-liquid jet atomizer, the left liquid outlet end of the first liquid storage tank is connected to the induced flow inlet end of the first gas-liquid jet atomizer, a second regulating valve is provided on the pipeline connecting the left liquid outlet end of the first liquid storage tank and the induced flow inlet end of the first gas-liquid jet atomizer, the mixed flow outlet end of the first gas-liquid jet atomizer is connected to the lower right steam inlet end of the first atomization buffer tank,

[0012] The water vapor outlet end of the first liquid storage tank is connected to the water vapor inlet end on the upper right side of the first atomization buffer tank, the first baffle is installed below the connecting pipe of the first atomization buffer tank, and the bottom water outlet of the first atomization buffer tank is connected to the water inlet on the lower left side of the first liquid storage tank.

[0013] A spray-type water working medium quasi-saturated compression high-temperature heat pump system includes a condenser, a first expansion valve, a first liquid storage tank, an evaporator, a first compressor, a first atomization buffer tank, a first atomization nozzle, a first baffle and a third regulating valve.

[0014] The condenser is provided with a hot water inlet and a hot water outlet.

[0015] The evaporator is equipped with a low-level heat source water inlet and a low-level heat source water outlet.

[0016] The refrigerant outlet end of the evaporator is connected to the left air inlet end of the first atomizing buffer tank, the steam outlet end of the first atomizing buffer tank is connected to the inlet end of the first compressor, the outlet end of the first compressor is connected to the refrigerant inlet end of the condenser, the refrigerant outlet end of the condenser is respectively connected to the liquid inlet end of the first expansion valve and the lower right steam inlet end of the first atomizing buffer tank, the liquid outlet end of the first expansion valve is connected to the liquid inlet end of the first liquid storage tank, the bottom liquid outlet end of the first liquid storage tank is connected to the refrigerant inlet end of the evaporator, a third regulating valve is provided on the pipeline connecting the refrigerant outlet end of the condenser and the lower right steam inlet end of the first atomizing buffer tank, the pipeline connecting the refrigerant outlet end of the condenser and the lower right steam inlet end of the first atomizing buffer tank extends to the end inside the first atomizing buffer tank and is provided with a first atomizing nozzle.

[0017] The water vapor outlet end of the first liquid storage tank is connected to the water vapor inlet end on the upper right side of the first atomization buffer tank, the first baffle is installed below the connecting pipe of the first atomization buffer tank, and the bottom water outlet end of the first atomization buffer tank is connected to the water inlet end on the lower left side of the first liquid storage tank.

[0018] A spray-type water working medium quasi-saturated compression high-temperature heat pump system includes a condenser, a first expansion valve, a first liquid storage tank, an evaporator, a first compressor, a first atomization buffer tank, a first atomization nozzle, a first spray high-pressure pump, a first baffle and a fourth regulating valve.

[0019] The condenser is provided with a hot water inlet and a hot water outlet.

[0020] The evaporator is equipped with a low-level heat source water inlet and a low-level heat source water outlet.

[0021] The refrigerant outlet of the evaporator is connected to the left air inlet of the first atomizing buffer tank, the steam outlet of the first atomizing buffer tank is connected to the inlet of the first compressor, the outlet of the first compressor is connected to the refrigerant inlet of the condenser, the refrigerant outlet of the condenser is connected to the liquid inlet of the first expansion valve, the liquid outlet of the first expansion valve is connected to the liquid inlet of the first liquid storage tank, and the bottom liquid outlet of the first liquid storage tank is connected to the refrigerant inlet of the evaporator.

[0022] The left liquid outlet of the first liquid storage tank is connected to the lower right steam inlet of the first atomizing buffer tank. The first spray high-pressure pump and the fourth regulating valve are sequentially provided on the pipeline connecting the left liquid outlet of the first liquid storage tank and the lower right steam inlet of the first atomizing buffer tank. The pipeline connecting the left liquid outlet of the first liquid storage tank and the lower right steam inlet of the first atomizing buffer tank extends to the end inside the first atomizing buffer tank and is provided with a first atomizing nozzle.

[0023] The water vapor outlet end of the first liquid storage tank is connected to the water vapor inlet end on the upper right side of the first atomization buffer tank, the first baffle is installed below the connecting pipe of the first atomization buffer tank, and the bottom water outlet of the first atomization buffer tank is connected to the water inlet on the lower left side of the first liquid storage tank.

[0024] A spray-type water working medium quasi-saturated compression high-temperature heat pump system includes a condenser, a first expansion valve, a second expansion valve, a first liquid storage tank, a second liquid storage tank, an evaporator, a first compressor, a second compressor, a first atomization buffer tank, a second atomization buffer tank, a first gas-liquid jet atomizer, a second gas-liquid jet atomizer, a first baffle, a second baffle, a first regulating valve, a second regulating valve, a fifth regulating valve and a sixth regulating valve.

[0025] The condenser is provided with a hot water inlet and a hot water outlet.

[0026] The evaporator is equipped with a low-level heat source water inlet and a low-level heat source water outlet.

[0027] The refrigerant outlet end of the evaporator is connected to the left air inlet end of the first atomizing buffer tank, the steam outlet end of the first atomizing buffer tank is connected to the inlet end of the first compressor, the outlet end of the first compressor is respectively connected to the left air inlet end of the second atomizing buffer tank and the mainstream inlet end of the first gas-liquid jet atomizer, the steam outlet end of the second atomizing buffer tank is connected to the inlet end of the second compressor, the outlet end of the second compressor is respectively connected to the refrigerant inlet end of the condenser and the mainstream inlet end of the second gas-liquid jet atomizer, the refrigerant outlet end of the condenser is connected to the liquid inlet end of the second expansion valve, the liquid outlet end of the second expansion valve is connected to the liquid inlet end of the second liquid storage tank, the bottom liquid outlet end of the second liquid storage tank is connected to the liquid inlet end of the first expansion valve, the liquid outlet end of the first expansion valve is connected to the liquid inlet end of the first liquid storage tank, and the bottom liquid outlet end of the first liquid storage tank is connected to the refrigerant inlet end of the evaporator.

[0028] A first regulating valve is provided on the pipeline connecting the outlet end of the first compressor and the mainstream inlet end of the first gas-liquid jet atomizer, the left liquid outlet end of the first liquid storage tank is connected to the induced flow inlet end of the first gas-liquid jet atomizer, a second regulating valve is provided on the pipeline connecting the left liquid outlet end of the first liquid storage tank and the induced flow inlet end of the first gas-liquid jet atomizer, the mixed flow outlet end of the first gas-liquid jet atomizer is connected to the lower right steam inlet end of the first atomization buffer tank,

[0029] A fifth regulating valve is provided on the pipeline connecting the outlet end of the second compressor and the mainstream inlet end of the second gas-liquid jet atomizer. The left liquid outlet end of the second liquid storage tank is connected to the induced flow inlet end of the second gas-liquid jet atomizer. A sixth regulating valve is provided on the pipeline connecting the left liquid outlet end of the second liquid storage tank and the induced flow inlet end of the second gas-liquid jet atomizer. The mixed flow outlet end of the second gas-liquid jet atomizer is connected to the lower right steam inlet end of the second atomization buffer tank.

[0030] The water vapor outlet end of the first liquid storage tank is connected to the water vapor inlet end on the upper right side of the first atomizing buffer tank. The first baffle is installed below the connecting pipe of the first atomizing buffer tank. The bottom water outlet end of the first atomizing buffer tank is connected to the water inlet end on the lower left side of the first liquid storage tank.

[0031] The water vapor outlet end of the second liquid storage tank is connected to the water vapor inlet end on the upper right side of the second atomization buffer tank, the second baffle is installed below the connecting pipe of the second atomization buffer tank, and the bottom water outlet end of the second atomization buffer tank is connected to the water inlet end on the lower left side of the second liquid storage tank.

[0032] A spray-type water working medium quasi-saturated compression high-temperature heat pump system includes a condenser, a first expansion valve, a second expansion valve, a first liquid storage tank, a second liquid storage tank, an evaporator, a first compressor, a second compressor, a first atomizing buffer tank, a second atomizing buffer tank, a first atomizing nozzle, a second atomizing nozzle, a first spray high-pressure pump, a second spray high-pressure pump, a first baffle, a second baffle, a fourth regulating valve, and a seventh regulating valve.

[0033] The condenser is provided with a hot water inlet and a hot water outlet.

[0034] The evaporator is equipped with a low-level heat source water inlet and a low-level heat source water outlet.

[0035] The refrigerant outlet end of the evaporator is connected to the left air inlet end of the first atomizing buffer tank, the steam outlet end of the first atomizing buffer tank is connected to the inlet end of the first compressor, the outlet end of the first compressor is connected to the left air inlet end of the second atomizing buffer tank, the steam outlet end of the second atomizing buffer tank is connected to the inlet end of the second compressor, the outlet end of the second compressor is connected to the refrigerant inlet end of the condenser, the refrigerant outlet end of the condenser is connected to the liquid inlet end of the second expansion valve, the liquid outlet end of the second expansion valve is connected to the liquid inlet end of the second liquid storage tank, the bottom liquid outlet end of the second liquid storage tank is connected to the liquid inlet end of the first expansion valve, the liquid outlet end of the first expansion valve is connected to the liquid inlet end of the first liquid storage tank, and the bottom liquid outlet end of the first liquid storage tank is connected to the refrigerant inlet end of the evaporator.

[0036] The left liquid outlet end of the first liquid storage tank is connected to the lower right steam inlet end of the first atomizing buffer tank. The pipeline connecting the left liquid outlet end of the first liquid storage tank and the lower right steam inlet end of the first atomizing buffer tank is provided with a first spray high-pressure pump and a fourth regulating valve in sequence. The pipeline connecting the left liquid outlet end of the first liquid storage tank and the lower right steam inlet end of the first atomizing buffer tank extends to the end inside the first atomizing buffer tank and is provided with a first atomizing nozzle.

[0037] The left liquid outlet end of the second liquid storage tank is connected to the lower right steam inlet end of the second atomizing buffer tank. The pipeline connecting the left liquid outlet end of the second liquid storage tank and the lower right steam inlet end of the second atomizing buffer tank is provided with a second spray high-pressure pump and a seventh regulating valve in sequence. The pipeline connecting the left liquid outlet end of the second liquid storage tank and the lower right steam inlet end of the second atomizing buffer tank extends to the end inside the second atomizing buffer tank and is provided with a second atomizing nozzle.

[0038] The water vapor outlet end of the first liquid storage tank is connected to the water vapor inlet end on the upper right side of the first atomizing buffer tank. The first baffle is installed below the connecting pipe of the first atomizing buffer tank. The bottom water outlet end of the first atomizing buffer tank is connected to the water inlet end on the lower left side of the first liquid storage tank.

[0039] The water vapor outlet end of the second liquid storage tank is connected to the water vapor inlet end on the upper right side of the second atomization buffer tank, the second baffle is installed below the connecting pipe of the second atomization buffer tank, and the bottom water outlet end of the second atomization buffer tank is connected to the water inlet end on the lower left side of the second liquid storage tank.

[0040] Compared with the prior art, the present invention has the following beneficial effects:

[0041] (1) Since water has a high unit volume heating capacity and an excellent heating coefficient when the evaporation temperature exceeds 90°C, this system can increase the evaporation temperature of water to 100°C or even 150°C, so this system can achieve a higher heating temperature.

[0042] (2) The present invention introduces micro-nano spray technology based on an atomizing nozzle, which forms a large number of uniformly distributed mist droplets with a particle size distribution of 50nm to 500nm after the liquid working medium flows through the nozzle, and quickly vaporizes during the compression process. This spray vaporization process absorbs a large amount of sensible heat in a very short time, completing the conversion of molecular kinetic energy in the form of sensible heat to molecular potential energy in the form of latent heat, achieving temperature control during the compression process, thereby enhancing the stability and efficiency of the compression process.

[0043] (3) The spray droplets continuously undergo vaporization phase transition during the compression process, forming a multi-stage continuous phase change cooling mechanism. The compression process is always close to saturation, which can significantly reduce the superheat at the compressor exhaust end and avoid the problems of energy efficiency degradation and shortened equipment life caused by overheating. The liquid mass fraction in the mixed airflow after spraying is maintained between 5% and 10%, effectively supporting quasi-saturated compression conditions. Compared with the low power consumption of traditional superheated compression methods, the present invention can effectively improve the overall performance coefficient of the system.

[0044] (4) The present invention provides a variety of atomization methods, including gas-liquid ejector atomization method: the mainstream high-pressure gas injects low-pressure liquid for mixed spraying, forming high-speed shear mixing in the injection channel to achieve synchronous decompression and atomization; by adjusting the injection ratio, the liquid proportion and humidity in the mixed mist flow are controlled to achieve precise control of the state of the compressed inlet working medium; high-pressure condensate + atomizing nozzle method: using the high-pressure liquid working medium at the outlet of the condenser inside the system to form droplets through the atomizing nozzle, relying on the system's own pressure difference to drive, without additional energy consumption, and with a simple structure; atomizing high-pressure pump + atomizing nozzle method: by setting a small high-pressure pump to provide a stable atomization pressure to the nozzle, a micro-nano droplet mist flow with a particle size of 50nm~500nm is obtained, making the system more simple and efficient.

[0045] (5) In order to solve the problem of single-stage compression instability under large temperature increases and to put forward higher requirements on the performance of the compressor, the present invention further optimizes the single-stage compression into a two-stage compression form of water vapor quasi-saturation compression, which can achieve a heating temperature of about 150°C and more stable system operation characteristics. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 Schematic comparison diagrams of the cooling and compression process of the present system and the multi-stage compression system in an embodiment of the present invention, wherein (a) is a schematic diagram of the multi-stage compression system with intermediate liquid spray cooling and compression process, and (b) is a schematic diagram of the present system with intermediate spray quasi-saturated cooling and compression process;

[0047] Figure 2 The structure of a spray-type water working medium quasi-saturated compression high-temperature heat pump system in an embodiment of the present invention Figure 1 ;

[0048] Figure 3 The structure of a spray-type water working medium quasi-saturated compression high-temperature heat pump system in an embodiment of the present invention Figure 2 ;

[0049] Figure 4 The structure of a spray-type water working medium quasi-saturated compression high-temperature heat pump system in an embodiment of the present invention Figure 3 ;

[0050] Figure 5The structure of a spray-type water working medium quasi-saturated compression high-temperature heat pump system in an embodiment of the present invention Figure 4 ;

[0051] Figure 6 The structure of a spray-type water working medium quasi-saturated compression high-temperature heat pump system in an embodiment of the present invention Figure 5 .

[0052] Description of reference numerals:

[0053] 1. Condenser; 2. First expansion valve; 3. Second expansion valve; 4. First liquid storage tank; 5. Second liquid storage tank; 6. Evaporator; 7. First compressor; 8. Second compressor; 9. First atomizing buffer tank; 10. Second atomizing buffer tank; 11. First gas-liquid jet atomizer; 12. Second gas-liquid jet atomizer; 13. First atomizing nozzle; 14. Second atomizing nozzle; 15. First spray high-pressure pump; 16. Second spray high-pressure pump; 17. First baffle; 18, second baffle; 21, first regulating valve; 22, second regulating valve; 23, third regulating valve; 24, fourth regulating valve; 25, fifth regulating valve; 26, sixth regulating valve; 27, seventh regulating valve; 31, first condensing hot water pipeline; 32, second condensing hot water pipeline; 41, first low-level hot water pipeline; 42, second low-level hot water pipeline; 51, first water working medium gas pipeline; 52, second water working medium gas pipeline; 53, first 3rd water working medium gas pipeline; 54, 4th water working medium gas pipeline; 55, 5th water working medium gas pipeline; 56, 6th water working medium gas pipeline; 57, 7th water working medium gas pipeline; 58, 1st main water working medium gas pipeline; 59, 2nd main water working medium gas pipeline; 61, 1st water working medium liquid pipeline; 62, 2nd water working medium liquid pipeline; 63, 3rd water working medium liquid pipeline; 64, 4th water working medium liquid pipeline; 65, 5th water working medium liquid pipeline Pipeline; 66, sixth water working medium liquid pipeline; 67, high-pressure condensate pipeline; 68, first jet flow water working medium liquid pipeline; 69, second jet flow water working medium liquid pipeline; 71, first water vapor connecting pipeline; 72, second water vapor connecting pipeline; 73, first mixed flow water working medium pipeline; 74, second mixed flow water working medium pipeline; 75, first return water pipeline; 76, second return water pipeline; 81, first spray pipeline; 82, second spray pipeline. DETAILED DESCRIPTION

[0054] In the description of the present invention, it should be noted that the terminology in each embodiment, such as "up", "down", "front", "back", "left", "right", etc., which indicate directions, are only for simplifying the description of the positional relationship based on the drawings in the specification, and do not mean that the referred elements and devices must be operated in accordance with the specific directions and defined operations and methods and structures in the specification. Such directional nouns do not constitute a limitation to the present invention.

[0055] In the description of the present invention, it should be noted that the terms "first," "second," and "third" mentioned in the embodiments of the present invention are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, a feature specified as "first," "second," or "third" may explicitly or implicitly include one or more of such features.

[0056] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0057] Specific implementation plan 1: Combined Figure 2 As shown, the present invention provides a spray-type water working medium quasi-saturated compression high-temperature heat pump system, including a condenser 1, a first expansion valve 2, a first liquid storage tank 4, an evaporator 6, a first compressor 7, a first atomization buffer tank 9, a first gas-liquid jet atomizer 11, a first baffle 17, a first regulating valve 21, a second regulating valve 22, a first condensing hot water pipeline 31, a second condensing hot water pipeline 32, a first low-level hot water pipeline 41, a second low-level hot water pipeline 42, a first water working medium gas pipeline 51, a second water working medium gas pipeline 52, a third water working medium gas pipeline 53, a fourth water working medium gas pipeline 54, a first mainstream water working medium gas pipeline 58, a fourth water working medium liquid pipeline 64, a fifth water working medium liquid pipeline 65, a sixth water working medium liquid pipeline 66, a first ejector flow water working medium liquid pipeline 68, a first water vapor connecting pipeline 71, a first mixed flow water working medium pipeline 73, and a first return water pipeline 75.

[0058] The outlet of the first condensing hot water pipe 31 is connected to the hot water inlet of the condenser 1, and the hot water outlet of the condenser 1 is connected to the inlet of the second condensing hot water pipe 32.

[0059] The outlet end of the first low-level hot water pipeline 41 is connected to the low-level heat source water inlet end of the evaporator 6, and the low-level heat source water outlet end of the evaporator 6 is connected to the inlet end of the second low-level hot water pipeline 42.

[0060] The inlet end of the first water working medium gas pipeline 51 is connected to the refrigerant outlet end of the evaporator 6, the outlet end of the first water working medium gas pipeline 51 is connected to the left air inlet of the first atomizing buffer tank 9, the steam outlet of the first atomizing buffer tank 9 is connected to the inlet end of the second water working medium gas pipeline 52, the outlet end of the second water working medium gas pipeline 52 is connected to the inlet end of the first compressor 7, the outlet end of the first compressor 7 is connected to the inlet end of the third water working medium gas pipeline 53, the outlet end of the third water working medium gas pipeline 53 is respectively connected to the inlet end of the fourth water working medium gas pipeline 54 and the inlet end of the first mainstream water working medium gas pipeline 58, and the fourth water working medium gas pipeline 54 is connected to the inlet end of the first mainstream water working medium gas pipeline 58. The outlet end of the working medium gas pipeline 54 is connected to the refrigerant inlet end of the condenser 1, the refrigerant outlet end of the condenser 1 is connected to the inlet end of the fourth water working medium liquid pipeline 64, the outlet end of the fourth water working medium liquid pipeline 64 is connected to the liquid inlet end of the first expansion valve 2, the liquid outlet end of the first expansion valve 2 is connected to the inlet end of the fifth water working medium liquid pipeline 65, the outlet end of the fifth water working medium liquid pipeline 65 is connected to the liquid inlet end of the first liquid storage tank 4, the bottom liquid outlet end of the first liquid storage tank 4 is connected to the inlet end of the sixth water working medium liquid pipeline 66, and the outlet end of the sixth water working medium liquid pipeline 66 is connected to the refrigerant inlet end of the evaporator 6.

[0061] The outlet end of the first mainstream water working medium gaseous pipeline 58 is connected to the mainstream inlet end of the first gas-liquid jet atomizer 11, the first mainstream water working medium gaseous pipeline 58 is provided with a first regulating valve 21, the left liquid outlet end of the first liquid storage tank 4 is connected to the inlet end of the first induced flow water working medium liquid pipeline 68, the first induced flow water working medium liquid pipeline 68 is provided with a second regulating valve 22, the outlet end of the first induced flow water working medium liquid pipeline 68 is connected to the induced flow inlet end of the first gas-liquid jet atomizer 11, the mixed flow outlet end of the first gas-liquid jet atomizer 11 is connected to the inlet end of the first mixed flow water working medium pipeline 73, and the outlet end of the first mixed flow water working medium pipeline 73 is connected to the lower right steam inlet end of the first atomization buffer tank 9.

[0062] The water vapor outlet end of the first liquid storage tank 4 is connected to the water vapor inlet end on the upper right side of the first atomizing buffer tank 9 through the first water vapor connecting pipe 71. The first baffle 17 is installed below the connecting pipe of the first atomizing buffer tank 9 to achieve spray cooling first and then mixing with saturated steam. The bottom water outlet of the first atomizing buffer tank 9 is connected to the water inlet on the lower left side of the first liquid storage tank 4 through the first return water pipe 75.

[0063] The operating principle of this embodiment is as follows: liquid water from condenser 1 is throttled by first expansion valve 2 and enters first liquid storage tank 4. Flashed water vapor enters first atomization buffer tank 9 through first water vapor communication line 71. The remaining low-pressure liquid water enters evaporator 6, absorbs heat, and vaporizes before entering first atomization buffer tank 9. A first gas-liquid jet atomizer 11 is used to generate a gas stream saturated with micro-nano droplets. Specifically, high-pressure gaseous water from the outlet of first compressor 7 enters the main inlet of first gas-liquid jet atomizer 11, where it is injected with low-pressure liquid water from first liquid storage tank 4, forming a mixed mist droplet with a particle size of 50nm to 500nm. This mixed mist droplet enters first atomization buffer tank 9, then enters first compressor 7 for quasi-saturation compression. The compressed gaseous water enters condenser 1, releasing latent heat, thereby heating the condensing hot water pipeline. Excess water in first atomization buffer tank 9 is returned to first liquid storage tank 4 via first return line 75. The first water return line 75 prevents the first atomization buffer tank 9 from accumulating excess liquid water.

[0064] Overall, two effects are achieved. Through the gas-liquid ejector atomization method, high-pressure gas is used to induce low-pressure liquid for mixed spraying, so that the liquid working medium forms a large number of evenly distributed mist droplets with a particle size distribution of 50nm~500nm after flowing through the nozzle. As the air flow flows during the compression process, the micro-nano droplets continue to undergo vaporization phase change, thereby achieving control of the compression process temperature and greatly reducing the exhaust superheat of the compression process; at the same time, due to the characteristics of water itself, the gaseous water working medium at the outlet of the evaporator 6 is compressed by the compressor and then enters the condenser to release heat, which can achieve a heating effect greater than 100°C.

[0065] Combine Figure 1 As shown in (b) in the figure, the present invention utilizes quasi-saturated compression technology to enable the micro-nano droplets to achieve the conversion from sensible heat to latent heat within the system during a phase change process within nanoseconds, without the need for external heat dissipation. The liquid mass fraction in the micro-nano droplet compressed airflow formed after spraying is always maintained between 5% and 10%, and the temperature of the mixed airflow is approximately equal to the saturation temperature at that pressure; at the same time, the quasi-saturated compression process has lower compression power consumption. Micro-nano droplets can absorb a large amount of heat in a very short time, vaporizing themselves, and realizing the conversion of molecular kinetic energy in the form of sensible heat to molecular potential energy in the form of latent heat; the vaporization phase change process of micro-nano droplets is continuous. As long as the micro-nano droplets are not completely vaporized, the temperature of the compressed airflow saturated with micro-nano droplets is approximately equal to the saturation temperature at that pressure, effectively supporting the establishment of quasi-saturated compression conditions. Compared with traditional liquid spray cooling technology, this system represents a significant technological breakthrough.

[0066] Specific implementation plan 2: Combined Figure 3As shown, the present invention provides a spray-type water working medium quasi-saturated compression high-temperature heat pump system, including a condenser 1, a first expansion valve 2, a first liquid storage tank 4, an evaporator 6, a first compressor 7, a first atomizing buffer tank 9, a first atomizing nozzle 13, a first baffle 17, a third regulating valve 23, a first condensing hot water pipeline 31, a second condensing hot water pipeline 32, a first low-level hot water pipeline 41, a second low-level hot water pipeline 42, a first water working medium gas pipeline 51, a second water working medium gas pipeline 52, a fourth water working medium gas pipeline 54, a first water working medium liquid pipeline 61, a fourth water working medium liquid pipeline 64, a fifth water working medium liquid pipeline 65, a sixth water working medium liquid pipeline 66, a high-pressure condensate pipeline 67, a first water vapor connecting pipeline 71, and a first return water pipeline 75.

[0067] The outlet of the first condensing hot water pipe 31 is connected to the hot water inlet of the condenser 1, and the hot water outlet of the condenser 1 is connected to the inlet of the second condensing hot water pipe 32.

[0068] The outlet end of the first low-level hot water pipeline 41 is connected to the low-level heat source water inlet end of the evaporator 6, and the low-level heat source water outlet end of the evaporator 6 is connected to the inlet end of the second low-level hot water pipeline 42.

[0069] The inlet end of the first water working medium gaseous pipeline 51 is connected to the refrigerant outlet end of the evaporator 6, the outlet end of the first water working medium gaseous pipeline 51 is connected to the left air inlet end of the first atomizing buffer tank 9, the steam outlet end of the first atomizing buffer tank 9 is connected to the inlet end of the second water working medium gaseous pipeline 52, the outlet end of the second water working medium gaseous pipeline 52 is connected to the inlet end of the first compressor 7, the outlet end of the first compressor 7 is connected to the inlet end of the fourth water working medium gaseous pipeline 54, the outlet end of the fourth water working medium gaseous pipeline 54 is connected to the refrigerant inlet end of the condenser 1, and the refrigerant outlet end of the condenser 1 is connected to the first water working medium liquid pipeline 61. The inlet end is connected, the outlet end of the first water working medium liquid pipeline 61 is connected to the inlet end of the fourth water working medium liquid pipeline 64 and the inlet end of the high-pressure condensate pipeline 67 respectively, the outlet end of the fourth water working medium liquid pipeline 64 is connected to the liquid inlet end of the first expansion valve 2, the liquid outlet end of the first expansion valve 2 is connected to the inlet end of the fifth water working medium liquid pipeline 65, the outlet end of the fifth water working medium liquid pipeline 65 is connected to the liquid inlet end of the first liquid storage tank 4, the bottom liquid outlet end of the first liquid storage tank 4 is connected to the inlet end of the sixth water working medium liquid pipeline 66, and the outlet end of the sixth water working medium liquid pipeline 66 is connected to the refrigerant inlet end of the evaporator 6,

[0070] The outlet end of the high-pressure condensate pipeline 67 is connected to the steam inlet on the lower right side of the first atomizing buffer tank 9. The high-pressure condensate pipeline 67 is provided with a third regulating valve 23. The end of the high-pressure condensate pipeline 67 extending into the first atomizing buffer tank 9 is provided with a first atomizing nozzle 13.

[0071] The water vapor outlet end of the first liquid storage tank 4 is connected to the water vapor inlet end on the upper right side of the first atomizing buffer tank 9 through the first water vapor connecting pipe 71. The first baffle 17 is installed below the connecting pipe of the first atomizing buffer tank 9. The bottom water outlet of the first atomizing buffer tank 9 is connected to the water inlet on the lower left side of the first liquid storage tank 4 through the first return water pipe 75.

[0072] The operating principle of this embodiment is as follows: the liquid water from the condenser 1 is throttled by the first expansion valve 2 and then enters the first liquid storage tank 4, wherein the flashed water vapor enters the first atomization buffer tank 9 through the first water vapor connecting pipe 71, and the other part of the low-pressure liquid water enters the evaporator 6 to absorb heat and vaporize before entering the first atomization buffer tank 9; the condensed high-pressure liquid water is atomized through the atomizing nozzle by the pressure difference, specifically, the high-pressure condensed water at the outlet of the condenser 1 is passed into the first atomization buffer tank 9 through the high-pressure condensate pipe 67, and then atomized by the first atomizing nozzle 13 to achieve the function of preparing a gas flow saturated with 50nm~500nm micro-nano droplets. It then enters the first compressor 7 for quasi-saturated compression, and the compressed gaseous water enters the condenser 1 to release latent heat, thereby achieving heating of the condensed hot water pipe. The excess water in the first atomization buffer tank 9 is returned to the first liquid storage tank 4 through the first return pipe 75.

[0073] Overall, two effects are achieved. The high-pressure liquid working medium at the outlet of condenser 1 is used to form mist droplets with a particle size distribution of 50nm~500nm through an atomizing nozzle. As the air flow flows during the compression process, the micro-nano droplets continue to undergo vaporization phase change, thereby effectively controlling the exhaust superheat of the compression process and reducing the compression power consumption. At the same time, due to the characteristics of water itself, after the energy quality of the heat pump is improved, a heating effect of more than 100℃ can be achieved.

[0074] The present invention utilizes quasi-saturated compression technology, so that the micro-nano liquid droplets will continuously absorb the heat converted from work to heat during the compression process. Unlike the comparative scheme 1, this embodiment uses the pressure difference in the form of "high-pressure condensate + atomizing nozzle" to atomize the condensed high-pressure liquid water through the atomizing nozzle, relying on the system's own pressure difference to drive, without consuming additional work; the mass fraction of liquid micro-mist in the wet steam entering the compressor is between 5% and 10%, which effectively absorbs the sensible heat generated during the compression process and improves the system's operating stability and energy efficiency.

[0075] Specific implementation plan three: combined Figure 4As shown, the present invention provides a spray-type water working medium quasi-saturated compression high-temperature heat pump system, including a condenser 1, a first expansion valve 2, a first liquid storage tank 4, an evaporator 6, a first compressor 7, a first atomizing buffer tank 9, a first atomizing nozzle 13, a first spray high-pressure pump 15, a first baffle 17, a fourth regulating valve 24, a first condensing hot water pipeline 31, a second condensing hot water pipeline 32, a first low-level hot water pipeline 41, a second low-level hot water pipeline 42, a first water working medium gas pipeline 51, a second water working medium gas pipeline 52, a fourth water working medium gas pipeline 54, a fourth water working medium liquid pipeline 64, a fifth water working medium liquid pipeline 65, a sixth water working medium liquid pipeline 66, a first water vapor connecting pipeline 71, a first return water pipeline 75, and a first spray pipeline 81.

[0076] The outlet of the first condensing hot water pipe 31 is connected to the hot water inlet of the condenser 1, and the hot water outlet of the condenser 1 is connected to the inlet of the second condensing hot water pipe 32.

[0077] The outlet end of the first low-level hot water pipeline 41 is connected to the low-level heat source water inlet end of the evaporator 6, and the low-level heat source water outlet end of the evaporator 6 is connected to the inlet end of the second low-level hot water pipeline 42.

[0078] The inlet end of the first water working medium gas pipeline 51 is connected to the refrigerant outlet end of the evaporator 6, the outlet end of the first water working medium gas pipeline 51 is connected to the left air inlet end of the first atomizing buffer tank 9, the steam outlet end of the first atomizing buffer tank 9 is connected to the inlet end of the second water working medium gas pipeline 52, the outlet end of the second water working medium gas pipeline 52 is connected to the inlet end of the first compressor 7, the outlet end of the first compressor 7 is connected to the inlet end of the fourth water working medium gas pipeline 54, and the outlet end of the fourth water working medium gas pipeline 54 is connected to the refrigerant inlet end of the condenser 1 The refrigerant outlet of the condenser 1 is connected to the inlet of the fourth water working medium liquid pipeline 64, the outlet of the fourth water working medium liquid pipeline 64 is connected to the liquid inlet of the first expansion valve 2, the liquid outlet of the first expansion valve 2 is connected to the inlet of the fifth water working medium liquid pipeline 65, the outlet of the fifth water working medium liquid pipeline 65 is connected to the liquid inlet of the first liquid storage tank 4, the bottom liquid outlet of the first liquid storage tank 4 is connected to the inlet of the sixth water working medium liquid pipeline 66, and the outlet of the sixth water working medium liquid pipeline 66 is connected to the refrigerant inlet of the evaporator 6.

[0079] The left liquid outlet end of the first liquid storage tank 4 is connected to the inlet end of the first spray pipeline 81. The first spray pipeline 81 is provided with a first spray high-pressure pump 15 and a fourth regulating valve 24 in sequence. The outlet end of the first spray pipeline 81 is connected to the lower right steam inlet end of the first atomizing buffer tank 9. The first spray pipeline 81 extends to the end inside the first atomizing buffer tank 9 and is provided with a first atomizing nozzle 13.

[0080] The water vapor outlet end of the first liquid storage tank 4 is connected to the water vapor inlet end on the upper right side of the first atomizing buffer tank 9 through the first water vapor connecting pipe 71. The first baffle 17 is installed below the connecting pipe of the first atomizing buffer tank 9. The bottom water outlet of the first atomizing buffer tank 9 is connected to the water inlet on the lower left side of the first liquid storage tank 4 through the first return water pipe 75.

[0081] The operating principle of this embodiment is as follows: Liquid water from condenser 1 is throttled by first expansion valve 2 and enters first liquid storage tank 4. Flashed water vapor enters first atomization buffer tank 9 through first water vapor connecting line 71. The remaining low-pressure liquid water enters evaporator 6, absorbs heat, and vaporizes before entering first atomization buffer tank 9. Atomization pressure is provided by first spray high-pressure pump 15, and atomization is performed in first atomization buffer tank 9 through first atomization nozzle 13, producing an airflow saturated with 50nm-500nm micro-nano droplets. This airflow then enters the compressor for quasi-saturated compression. The compressed gaseous water enters condenser 1, releasing latent heat, thereby heating the condensing hot water pipeline. Excess water in first atomization buffer tank 9 flows back to first liquid storage tank 4 through first return line 75.

[0082] Overall, two effects are achieved. By setting up a small high-pressure pump to provide stable atomization pressure to the nozzle, a micro-nano droplet mist flow with a particle size of 50nm~500nm is obtained. As the air flow flows during the compression process, the micro-nano droplets continue to undergo vaporization phase change, thereby effectively controlling the exhaust superheat of the compression process and reducing compression power consumption; at the same time, due to the characteristics of water itself, after the energy quality is improved by the heat pump, a heating effect of more than 100℃ can be achieved.

[0083] The present invention utilizes spray technology to maintain quasi-saturation during the compression process, with the mass fraction of liquid water in the mixed airflow ranging from 5% to 10%. Micro-nano liquid droplets absorb a large amount of heat in a very short period of time, vaporizing themselves to achieve multi-stage continuous phase change cooling, thereby effectively reducing the superheat of the compressed exhaust gas. The quasi-saturated compression process also has lower compression power consumption. This embodiment significantly improves the specific surface area of ​​the droplets and the uniformity of atomization in the form of a "atomizing high-pressure pump + atomizing nozzle," thereby enhancing the heat transfer and phase change processes and improving the heat exchange efficiency of the system. At the same time, because the atomization pressure and flow rate can be adjusted independently, the system responds flexibly and the mist flow is stable, avoiding the risk of fluctuations caused by the ejector's reliance on the main cycle operating conditions. Furthermore, the system pipelines are simple, making modular design and maintenance easy.

[0084] Specific implementation plan four: combined Figure 5As shown, the present invention provides a spray-type water working medium quasi-saturated compression high-temperature heat pump system, including a condenser 1, a first expansion valve 2, a second expansion valve 3, a first liquid storage tank 4, a second liquid storage tank 5, an evaporator 6, a first compressor 7, a second compressor 8, a first atomization buffer tank 9, a second atomization buffer tank 10, a first gas-liquid jet atomizer 11, a second gas-liquid jet atomizer 12, a first baffle 17, a second baffle 18, a first regulating valve 21, a second regulating valve 22, a fifth regulating valve 25, a sixth regulating valve 26, a first condensing hot water pipeline 31, a second condensing hot water pipeline 32, a first low-level hot water pipeline 41, a second low-level hot water pipeline 42, a first water working medium gas pipeline 51, a second water working medium gas pipeline 52, a third water working medium gas pipeline 53, a first water working medium gas pipeline 54, a second water working medium gas pipeline 55, a first water working medium gas pipeline 56, a first water working medium gas pipeline 57, a second water working medium gas pipeline 58, a first water working medium gas pipeline 59, a second water working medium gas pipeline 51, a first water working medium gas pipeline 52, a first water working medium gas pipeline 53, a second water working medium gas pipeline 54, a first water working medium gas pipeline 55, a first water working medium gas pipeline 56, a first water working medium gas pipeline 57, a second water working medium gas pipeline 58, a first water working medium gas pipeline 59, a first water working medium gas pipeline 5 a working medium gas pipeline 53, a fourth water working medium gas pipeline 54, a fifth water working medium gas pipeline 55, a sixth water working medium gas pipeline 56, a seventh water working medium gas pipeline 57, a first main water working medium gas pipeline 58, a second main water working medium gas pipeline 59, a second water working medium liquid pipeline 62, a third water working medium liquid pipeline 63, a fourth water working medium liquid pipeline 64, a fifth water working medium liquid pipeline 65, a sixth water working medium liquid pipeline 66, a first ejector flow water working medium liquid pipeline 68, a second ejector flow water working medium liquid pipeline 69, a first water vapor connecting pipeline 71, a second water vapor connecting pipeline 72, a first mixed flow water working medium pipeline 73, a second mixed flow water working medium pipeline 74, a first return water pipeline 75, and a second return water pipeline 76.

[0085] The outlet of the first condensing hot water pipe 31 is connected to the hot water inlet of the condenser 1, and the hot water outlet of the condenser 1 is connected to the inlet of the second condensing hot water pipe 32.

[0086] The outlet end of the first low-level hot water pipeline 41 is connected to the low-level heat source water inlet end of the evaporator 6, and the low-level heat source water outlet end of the evaporator 6 is connected to the inlet end of the second low-level hot water pipeline 42.

[0087] The inlet end of the first water working medium gas pipeline 51 is connected to the refrigerant outlet end of the evaporator 6, the outlet end of the first water working medium gas pipeline 51 is connected to the left air inlet end of the first atomizing buffer tank 9, the steam outlet end of the first atomizing buffer tank 9 is connected to the inlet end of the second water working medium gas pipeline 52, the outlet end of the second water working medium gas pipeline 52 is connected to the inlet end of the first compressor 7, the outlet end of the first compressor 7 is connected to the inlet end of the third water working medium gas pipeline 53, the outlet end of the third water working medium gas pipeline 53 is connected to the fourth water working medium gas pipeline 53 respectively. The inlet end of the pipeline 54 is connected to the inlet end of the first mainstream water working medium gas pipeline 58, the outlet end of the fourth water working medium gas pipeline 54 is connected to the left air inlet end of the second atomizing buffer tank 10, the steam outlet end of the second atomizing buffer tank 10 is connected to the inlet end of the fifth water working medium gas pipeline 55, the outlet end of the fifth water working medium gas pipeline 55 is connected to the inlet end of the second compressor 8, the outlet end of the second compressor 8 is connected to the inlet end of the sixth water working medium gas pipeline 56, the outlet end of the sixth water working medium gas pipeline 56 is connected to the seventh water working medium gas pipeline 57, and the outlet end of the sixth water working medium gas pipeline 56 is connected to the seventh water working medium gas pipeline 57. The inlet end of the seventh water working medium gas pipeline 57 is connected to the inlet end of the second mainstream water working medium gas pipeline 59, the outlet end of the seventh water working medium gas pipeline 57 is connected to the refrigerant inlet end of the condenser 1, the refrigerant outlet end of the condenser 1 is connected to the inlet end of the second water working medium liquid pipeline 62, the outlet end of the second water working medium liquid pipeline 62 is connected to the liquid inlet end of the second expansion valve 3, the liquid outlet end of the second expansion valve 3 is connected to the inlet end of the third water working medium liquid pipeline 63, the outlet end of the third water working medium liquid pipeline 63 is connected to the liquid inlet end of the second liquid storage tank 5, and the second storage tank 5 is connected to the liquid inlet end of the second liquid storage tank 5. The bottom liquid outlet of the liquid tank 5 is connected to the inlet of the fourth water working medium liquid pipeline 64, the outlet of the fourth water working medium liquid pipeline 64 is connected to the liquid inlet of the first expansion valve 2, the liquid outlet of the first expansion valve 2 is connected to the inlet of the fifth water working medium liquid pipeline 65, the outlet of the fifth water working medium liquid pipeline 65 is connected to the liquid inlet of the first liquid storage tank 4, the bottom liquid outlet of the first liquid storage tank 4 is connected to the inlet of the sixth water working medium liquid pipeline 66, and the outlet of the sixth water working medium liquid pipeline 66 is connected to the refrigerant inlet of the evaporator 6.

[0088] The outlet end of the first mainstream water working medium gaseous pipeline 58 is connected to the mainstream inlet end of the first gas-liquid jet atomizer 11, the first mainstream water working medium gaseous pipeline 58 is provided with a first regulating valve 21, the left liquid outlet end of the first liquid storage tank 4 is connected to the inlet end of the first induced flow water working medium liquid pipeline 68, the first induced flow water working medium liquid pipeline 68 is provided with a second regulating valve 22, the outlet end of the first induced flow water working medium liquid pipeline 68 is connected to the induced flow inlet end of the first gas-liquid jet atomizer 11, the mixed flow outlet end of the first gas-liquid jet atomizer 11 is connected to the inlet end of the first mixed flow water working medium pipeline 73, and the outlet end of the first mixed flow water working medium pipeline 73 is connected to the lower right steam inlet end of the first atomization buffer tank 9.

[0089] The outlet end of the second mainstream water working medium gaseous pipeline 59 is connected to the mainstream inlet end of the second gas-liquid jet atomizer 12, the second mainstream water working medium gaseous pipeline 59 is provided with a fifth regulating valve 25, the left liquid outlet end of the second liquid storage tank 5 is connected to the inlet end of the second induced flow water working medium liquid pipeline 69, the second induced flow water working medium liquid pipeline 69 is provided with a sixth regulating valve 26, the outlet end of the second induced flow water working medium liquid pipeline 69 is connected to the induced flow inlet end of the second gas-liquid jet atomizer 12, the mixed flow outlet end of the second gas-liquid jet atomizer 12 is connected to the inlet end of the second mixed flow water working medium pipeline 74, and the outlet end of the second mixed flow water working medium pipeline 74 is connected to the lower right steam inlet end of the second atomization buffer tank 10.

[0090] The water vapor outlet end of the first liquid storage tank 4 is connected to the water vapor inlet end on the upper right side of the first atomizing buffer tank 9 through a first water vapor connecting pipe 71. The first baffle 17 is installed below the connecting pipe of the first atomizing buffer tank 9. The bottom water outlet of the first atomizing buffer tank 9 is connected to the water inlet on the lower left side of the first liquid storage tank 4 through a first return water pipe 75.

[0091] The water vapor outlet end of the second liquid storage tank 5 is connected to the water vapor inlet end on the upper right side of the second atomizing buffer tank 10 through a second water vapor connecting pipe 72. The second baffle 18 is installed below the connecting pipe of the second atomizing buffer tank 10. The bottom water outlet of the second atomizing buffer tank 10 is connected to the water inlet on the lower left side of the second liquid storage tank 5 through a second return water pipe 76.

[0092] The operating principle of this embodiment is as follows: the liquid water coming out of the condenser 1 enters the second liquid storage tank 5 after being throttled by the second expansion valve 3, wherein the flashed water vapor enters the second atomizing buffer tank 10 through the second water vapor connecting pipe 72, and another part of the liquid water enters the first liquid storage tank 4 after being throttled by the first expansion valve 2, wherein the flashed water vapor enters the first atomizing buffer tank 9 through the first water vapor connecting pipe 71, and another part of the low-pressure liquid water enters the evaporator 6 to absorb heat and vaporize before entering the first atomizing buffer tank 9; a two-stage quasi-saturated compression form is adopted to realize high temperature rise heating, specifically referring to the use of the first gas-liquid jet atomizer 11 and the second gas-liquid jet atomizer 12 respectively to realize the function of preparing an airflow saturated with 50nm~500nm micro-nano droplets. High-pressure gaseous water from the outlet of the first compressor 7 enters the mainstream inlet of the first gas-liquid jet atomizer 11, where it draws low-pressure liquid water from the first liquid storage tank 4. The resulting mixed mist droplets enter the first atomizing buffer tank 9, then enter the first compressor 7 for primary quasi-saturated compression. The compressed gaseous water enters the second atomizing buffer tank 10. High-pressure gaseous water from the outlet of the second compressor 8 enters the mainstream inlet of the second gas-liquid jet atomizer 12, where it draws low-pressure liquid water from the second liquid storage tank 5. The resulting mixed mist droplets enter the second atomizing buffer tank 10, then enter the second compressor 8 for secondary quasi-saturated compression. The compressed gaseous water enters the condenser 1 to release latent heat, thereby heating the condensing hot water pipeline. Excess water in the first atomizing buffer tank 9 flows back to the first liquid storage tank 4 via the first return line 75, while excess water in the second atomizing buffer tank 10 flows back to the second liquid storage tank 5 via the second return line 76.

[0093] Overall, two effects are achieved. After injection, a large number of evenly distributed mist droplets with a particle size distribution of 50nm~500nm are formed. As the air flow flows during the compression process, the micro-nano droplets continue to undergo vaporization phase change, thereby achieving control of the compression process temperature and significantly reducing the exhaust superheat of the compression process; at the same time, since the system structure is further optimized from single-stage compression to two-stage compression, the temperature increase range is larger, which can achieve a heating temperature of about 150°C and more stable system operation characteristics.

[0094] This invention utilizes quasi-saturated compression technology, enabling micro-nano droplets to convert sensible heat to latent heat within the system during a very short phase transition. The liquid mass fraction in the mixed airflow is consistently maintained between 5% and 10%. Furthermore, during the continuous phase transition, as long as the droplets are not completely vaporized, the temperature of the compressed airflow saturated with micro-nano droplets is approximately equal to the saturation temperature at that pressure. Furthermore, the quasi-saturated compression process reduces compression power consumption. Compared to traditional liquid spray cooling technology, this system represents a significant technological breakthrough.

[0095] Specific implementation plan five: combined Figure 6As shown, the present invention provides a spray-type water working medium quasi-saturated compression high-temperature heat pump system, including a condenser 1, a first expansion valve 2, a second expansion valve 3, a first liquid storage tank 4, a second liquid storage tank 5, an evaporator 6, a first compressor 7, a second compressor 8, a first atomizing buffer tank 9, a second atomizing buffer tank 10, a first atomizing nozzle 13, a second atomizing nozzle 14, a first spray high-pressure pump 15, a second spray high-pressure pump 16, a first baffle 17, a second baffle 18, a fourth regulating valve 24, a seventh regulating valve 27, a first condensing hot water pipeline 31, a second condensing hot water pipeline 32, a first low-level heat exchanger 31, a second high-pressure heat exchanger 32, a first high-pressure heat exchanger 32, a first high-pressure heat exchanger 33, a first high-pressure heat exchanger 34, a first high-pressure heat exchanger 35, a first high-pressure heat exchanger 36, a first high-pressure heat exchanger 37, a first high-pressure heat exchanger 38, a first high-pressure heat exchanger 39, a first high-pressure heat exchanger 40, a first high-pressure heat exchanger 41, a first high-pressure heat exchanger 42, a first high-pressure heat exchanger 43, a first high-pressure heat exchanger 44, a first high-pressure heat exchanger 45, a first high-pressure heat exchanger 46, a first high-pressure heat exchanger 47, a first high-pressure heat exchanger 48, a first high-pressure heat exchanger 49, a first high-pressure heat exchanger 50, a first high-pressure heat exchanger 51, a first high-pressure heat exchanger 52, a first high-pressure heat exchanger 53, a first high-pressure heat exchanger 54, a first high-pressure water pipeline 41, second low-level hot water pipeline 42, first water working medium gas pipeline 51, second water working medium gas pipeline 52, fourth water working medium gas pipeline 54, fifth water working medium gas pipeline 55, seventh water working medium gas pipeline 57, second water working medium liquid pipeline 62, third water working medium liquid pipeline 63, fourth water working medium liquid pipeline 64, fifth water working medium liquid pipeline 65, sixth water working medium liquid pipeline 66, first water vapor connecting pipeline 71, second water vapor connecting pipeline 72, first water return pipeline 75, second water return pipeline 76, first spray pipeline 81, second spray pipeline 82,

[0096] The outlet of the first condensing hot water pipe 31 is connected to the hot water inlet of the condenser 1, and the hot water outlet of the condenser 1 is connected to the inlet of the second condensing hot water pipe 32.

[0097] The outlet end of the first low-level hot water pipeline 41 is connected to the low-level heat source water inlet end of the evaporator 6, and the low-level heat source water outlet end of the evaporator 6 is connected to the inlet end of the second low-level hot water pipeline 42.

[0098] The inlet end of the first water working medium gas pipeline 51 is connected to the refrigerant outlet end of the evaporator 6, the outlet end of the first water working medium gas pipeline 51 is connected to the left air inlet end of the first atomizing buffer tank 9, the steam outlet end of the first atomizing buffer tank 9 is connected to the inlet end of the second water working medium gas pipeline 52, the outlet end of the second water working medium gas pipeline 52 is connected to the inlet end of the first compressor 7, and the outlet end of the first compressor 7 is connected to the inlet end of the fourth water working medium gas pipeline 54. The outlet end of the fourth water working medium gas pipeline 54 is connected to the left air inlet end of the second atomizing buffer tank 10, the steam outlet end of the second atomizing buffer tank 10 is connected to the inlet end of the fifth water working medium gas pipeline 55, the outlet end of the fifth water working medium gas pipeline 55 is connected to the inlet end of the second compressor 8, the outlet end of the second compressor 8 is connected to the inlet end of the seventh water working medium gas pipeline 57, the outlet end of the seventh water working medium gas pipeline 57 is connected to the refrigerant inlet end of the condenser 1 The refrigerant outlet of the condenser 1 is connected to the inlet of the second water working medium liquid pipeline 62, the outlet of the second water working medium liquid pipeline 62 is connected to the liquid inlet of the second expansion valve 3, the outlet of the second expansion valve 3 is connected to the inlet of the third water working medium liquid pipeline 63, the outlet of the third water working medium liquid pipeline 63 is connected to the liquid inlet of the second liquid storage tank 5, and the bottom outlet of the second liquid storage tank 5 is connected to the inlet of the fourth water working medium liquid pipeline 64. Then, the outlet end of the fourth water working medium liquid pipeline 64 is connected to the liquid inlet end of the first expansion valve 2, the liquid outlet end of the first expansion valve 2 is connected to the inlet end of the fifth water working medium liquid pipeline 65, the outlet end of the fifth water working medium liquid pipeline 65 is connected to the liquid inlet end of the first liquid storage tank 4, the bottom liquid outlet end of the first liquid storage tank 4 is connected to the inlet end of the sixth water working medium liquid pipeline 66, and the outlet end of the sixth water working medium liquid pipeline 66 is connected to the refrigerant inlet end of the evaporator 6.

[0099] The left liquid outlet end of the first liquid storage tank 4 is connected to the inlet end of the first spray pipeline 81. The first spray pipeline 81 is provided with a first spray high-pressure pump 15 and a fourth regulating valve 24 in sequence. The outlet end of the first spray pipeline 81 is connected to the lower right steam inlet end of the first atomizing buffer tank 9. The first spray pipeline 81 extends to the end inside the first atomizing buffer tank 9 and is provided with a first atomizing nozzle 13.

[0100] The left liquid outlet end of the second liquid storage tank 5 is connected to the inlet end of the second spray pipeline 82. The second spray pipeline 82 is provided with a second spray high-pressure pump 16 and a seventh regulating valve 27 in sequence. The outlet end of the second spray high-pressure pump 16 is connected to the lower right steam inlet end of the second atomizing buffer tank 10. The second spray pipeline 82 extends to the end inside the second atomizing buffer tank 10 and is provided with a second atomizing nozzle 14.

[0101] The water vapor outlet end of the first liquid storage tank 4 is connected to the water vapor inlet end on the upper right side of the first atomizing buffer tank 9 through a first water vapor connecting pipe 71. The first baffle 17 is installed below the connecting pipe of the first atomizing buffer tank 9. The bottom water outlet of the first atomizing buffer tank 9 is connected to the water inlet on the lower left side of the first liquid storage tank 4 through a first return water pipe 75.

[0102] The water vapor outlet end of the second liquid storage tank 5 is connected to the water vapor inlet end on the upper right side of the second atomizing buffer tank 10 through a second water vapor connecting pipe 72. The second baffle 18 is installed below the connecting pipe of the second atomizing buffer tank 10. The bottom water outlet of the second atomizing buffer tank 10 is connected to the water inlet on the lower left side of the second liquid storage tank 5 through a second return water pipe 76.

[0103] The operating principle of this embodiment is as follows: the liquid water coming out of the condenser 1 enters the second liquid storage tank 5 after being throttled by the second expansion valve 3, wherein the flashed water vapor enters the second atomizing buffer tank 10 through the second water vapor connecting pipe 72, and another part of the liquid water enters the first liquid storage tank 4 after being throttled by the first expansion valve 2, wherein the flashed water vapor enters the first atomizing buffer tank 9 through the first water vapor connecting pipe 71, and another part of the low-pressure liquid water enters the evaporator 6 to absorb heat and vaporize before entering the first atomizing buffer tank 9; a two-stage quasi-saturated compression form is adopted to realize large temperature rise heating, and an atomizing high-pressure pump + atomizing nozzle method is adopted, specifically referring to Before the first stage of compression, a first spray high-pressure pump 15 provides atomizing pressure, and a first atomizing nozzle 13 performs atomization in the first atomizing buffer tank 9, preparing an airflow saturated with 50nm-500nm micro-nano droplets. The airflow then enters the compressor for quasi-saturated compression. Before the first stage of compression, a second spray high-pressure pump 16 provides atomizing pressure, and a second atomizing nozzle 14 performs atomization in the second atomizing buffer tank 10, preparing an airflow saturated with 50nm-500nm micro-nano droplets. The airflow then enters the second compressor 8 for quasi-saturated compression. The compressed gaseous water enters the condenser 1 to release latent heat, thereby heating the condensing hot water pipeline. Excess water in the first atomizing buffer tank 9 flows back to the first liquid storage tank 4 through the first return water pipeline 75, and excess water in the second atomizing buffer tank 10 flows back to the second liquid storage tank 5 through the second return water pipeline 76.

[0104] Overall, two effects are achieved. Atomized liquid droplets with a particle size distribution of 50nm~500nm are formed through the atomizing nozzle. As the airflow flows during the compression process, the micro-nano droplets continue to undergo vaporization phase change, and the mass fraction of liquid micro-mist is maintained at 5%~10%, thereby effectively controlling the exhaust superheat of the compression process and reducing the compression power consumption; at the same time, due to the two-stage quasi-saturated compression system structure, the temperature increase range is larger, which can achieve a heating temperature of about 150°C and more stable system operation characteristics.

[0105] Although the present invention is disclosed as above, the scope of protection disclosed by the present invention is not limited thereto. Those skilled in the art of the present invention may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A spray-type water working medium quasi-saturated compression high-temperature heat pump system, characterized by: It comprises a condenser (1), a first expansion valve (2), a first liquid storage tank (4), an evaporator (6), a first compressor (7), a first atomization buffer tank (9), a first gas-liquid jet atomizer (11), a first baffle (17), a first regulating valve (21) and a second regulating valve (22), The condenser (1) is provided with a hot water inlet and a hot water outlet. The evaporator (6) is provided with a low-level heat source water inlet end and a low-level heat source water outlet end. The refrigerant outlet of the evaporator (6) is connected to the left air inlet of the first atomizing buffer tank (9), the steam outlet of the first atomizing buffer tank (9) is connected to the inlet of the first compressor (7), the outlet of the first compressor (7) is respectively connected to the refrigerant inlet of the condenser (1) and the mainstream inlet of the first gas-liquid jet atomizer (11), the refrigerant outlet of the condenser (1) is connected to the liquid inlet of the first expansion valve (2), the liquid outlet of the first expansion valve (2) is connected to the liquid inlet of the first liquid storage tank (4), and the bottom liquid outlet of the first liquid storage tank (4) is connected to the refrigerant inlet of the evaporator (6). A first regulating valve (21) is provided on a pipeline connecting the outlet end of the first compressor (7) and the main flow inlet end of the first gas-liquid jet atomizer (11), a left liquid outlet end of the first liquid storage tank (4) is connected to the induced flow inlet end of the first gas-liquid jet atomizer (11), a second regulating valve (22) is provided on a pipeline connecting the left liquid outlet end of the first liquid storage tank (4) and the induced flow inlet end of the first gas-liquid jet atomizer (11), a mixed flow outlet end of the first gas-liquid jet atomizer (11) is connected to the lower right steam inlet end of the first atomization buffer tank (9), The water vapor outlet end of the first liquid storage tank (4) is connected to the water vapor inlet end on the upper right side of the first atomizing buffer tank (9), the first baffle (17) is installed below the connecting pipe of the first atomizing buffer tank (9), and the bottom water outlet of the first atomizing buffer tank (9) is connected to the water inlet on the lower left side of the first liquid storage tank (4).

2. A spray-type water working medium quasi-saturated compression high-temperature heat pump system, characterized by: The invention comprises a condenser (1), a first expansion valve (2), a first liquid storage tank (4), an evaporator (6), a first compressor (7), a first atomizing buffer tank (9), a first atomizing nozzle (13), a first baffle (17) and a third regulating valve (23), The condenser (1) is provided with a hot water inlet and a hot water outlet. The evaporator (6) is provided with a low-level heat source water inlet end and a low-level heat source water outlet end. The refrigerant outlet of the evaporator (6) is connected to the left air inlet of the first atomizing buffer tank (9), the steam outlet of the first atomizing buffer tank (9) is connected to the inlet of the first compressor (7), the outlet of the first compressor (7) is connected to the refrigerant inlet of the condenser (1), the refrigerant outlet of the condenser (1) is respectively connected to the liquid inlet of the first expansion valve (2) and the steam inlet of the lower right side of the first atomizing buffer tank (9), the liquid outlet of the first expansion valve (2) is connected to the first storage tank (1). The liquid inlet end of the liquid tank (4) is connected, the bottom liquid outlet end of the first liquid storage tank (4) is connected to the refrigerant inlet end of the evaporator (6), the pipeline connecting the refrigerant outlet end of the condenser (1) and the steam inlet end of the lower right side of the first atomizing buffer tank (9) is provided with a third regulating valve (23), and the pipeline connecting the refrigerant outlet end of the condenser (1) and the steam inlet end of the lower right side of the first atomizing buffer tank (9) is extended to the end inside the first atomizing buffer tank (9) and is provided with a first atomizing nozzle (13). The water vapor outlet end of the first liquid storage tank (4) is connected to the water vapor inlet end on the upper right side of the first atomizing buffer tank (9), the first baffle (17) is installed below the connecting pipe of the first atomizing buffer tank (9), and the bottom water outlet end of the first atomizing buffer tank (9) is connected to the water inlet end on the lower left side of the first liquid storage tank (4).

3. A spray-type water working medium quasi-saturated compression high-temperature heat pump system, characterized by: The invention comprises a condenser (1), a first expansion valve (2), a first liquid storage tank (4), an evaporator (6), a first compressor (7), a first atomizing buffer tank (9), a first atomizing nozzle (13), a first spray high-pressure pump (15), a first baffle (17) and a fourth regulating valve (24), The condenser (1) is provided with a hot water inlet and a hot water outlet. The evaporator (6) is provided with a low-level heat source water inlet end and a low-level heat source water outlet end. The refrigerant outlet of the evaporator (6) is connected to the left air inlet of the first atomizing buffer tank (9), the steam outlet of the first atomizing buffer tank (9) is connected to the inlet of the first compressor (7), the outlet of the first compressor (7) is connected to the refrigerant inlet of the condenser (1), the refrigerant outlet of the condenser (1) is connected to the liquid inlet of the first expansion valve (2), the liquid outlet of the first expansion valve (2) is connected to the liquid inlet of the first liquid storage tank (4), and the bottom liquid outlet of the first liquid storage tank (4) is connected to the refrigerant inlet of the evaporator (6). The left liquid outlet of the first liquid storage tank (4) is connected to the lower right steam inlet of the first atomizing buffer tank (9), and a first spray high-pressure pump (15) and a fourth regulating valve (24) are sequentially provided on the pipeline connecting the left liquid outlet of the first liquid storage tank (4) and the lower right steam inlet of the first atomizing buffer tank (9). The pipeline connecting the left liquid outlet of the first liquid storage tank (4) and the lower right steam inlet of the first atomizing buffer tank (9) extends to the end inside the first atomizing buffer tank (9) and is provided with a first atomizing nozzle (13). The water vapor outlet end of the first liquid storage tank (4) is connected to the water vapor inlet end on the upper right side of the first atomizing buffer tank (9), the first baffle (17) is installed below the connecting pipe of the first atomizing buffer tank (9), and the bottom water outlet of the first atomizing buffer tank (9) is connected to the water inlet on the lower left side of the first liquid storage tank (4).

4. A spray-type water working medium quasi-saturated compression high-temperature heat pump system, characterized by: The invention comprises a condenser (1), a first expansion valve (2), a second expansion valve (3), a first liquid storage tank (4), a second liquid storage tank (5), an evaporator (6), a first compressor (7), a second compressor (8), a first atomization buffer tank (9), a second atomization buffer tank (10), a first gas-liquid jet atomizer (11), a second gas-liquid jet atomizer (12), a first baffle (17), a second baffle (18), a first regulating valve (21), a second regulating valve (22), a fifth regulating valve (25) and a sixth regulating valve (26), The condenser (1) is provided with a hot water inlet and a hot water outlet. The evaporator (6) is provided with a low-level heat source water inlet end and a low-level heat source water outlet end. The refrigerant outlet of the evaporator (6) is connected to the left air inlet of the first atomizing buffer tank (9), the steam outlet of the first atomizing buffer tank (9) is connected to the inlet of the first compressor (7), the outlet of the first compressor (7) is respectively connected to the left air inlet of the second atomizing buffer tank (10) and the mainstream inlet of the first gas-liquid jet atomizer (11), the steam outlet of the second atomizing buffer tank (10) is connected to the inlet of the second compressor (8), and the outlet of the second compressor (8) is respectively connected to the refrigerant inlet of the condenser (1). The outlet end of the condenser (1) is connected to the main inlet end of the second gas-liquid injection atomizer (12), the refrigerant outlet end of the condenser (1) is connected to the liquid inlet end of the second expansion valve (3), the liquid outlet end of the second expansion valve (3) is connected to the liquid inlet end of the second liquid storage tank (5), the bottom liquid outlet end of the second liquid storage tank (5) is connected to the liquid inlet end of the first expansion valve (2), the liquid outlet end of the first expansion valve (2) is connected to the liquid inlet end of the first liquid storage tank (4), and the bottom liquid outlet end of the first liquid storage tank (4) is connected to the refrigerant inlet end of the evaporator (6). A first regulating valve (21) is provided on a pipeline connecting the outlet end of the first compressor (7) and the main flow inlet end of the first gas-liquid jet atomizer (11), a left liquid outlet end of the first liquid storage tank (4) is connected to the induced flow inlet end of the first gas-liquid jet atomizer (11), a second regulating valve (22) is provided on a pipeline connecting the left liquid outlet end of the first liquid storage tank (4) and the induced flow inlet end of the first gas-liquid jet atomizer (11), a mixed flow outlet end of the first gas-liquid jet atomizer (11) is connected to the lower right steam inlet end of the first atomization buffer tank (9), A fifth regulating valve (25) is provided on the pipeline connecting the outlet end of the second compressor (8) and the main flow inlet end of the second gas-liquid jet atomizer (12), the left liquid outlet end of the second liquid storage tank (5) is connected to the induced flow inlet end of the second gas-liquid jet atomizer (12), a sixth regulating valve (26) is provided on the pipeline connecting the left liquid outlet end of the second liquid storage tank (5) and the induced flow inlet end of the second gas-liquid jet atomizer (12), the mixed flow outlet end of the second gas-liquid jet atomizer (12) is connected to the lower right steam inlet end of the second atomization buffer tank (10), The water vapor outlet end of the first liquid storage tank (4) is connected to the water vapor inlet end on the upper right side of the first atomizing buffer tank (9), the first baffle (17) is installed below the connecting pipe of the first atomizing buffer tank (9), and the bottom water outlet end of the first atomizing buffer tank (9) is connected to the water inlet end on the lower left side of the first liquid storage tank (4). The water vapor outlet end of the second liquid storage tank (5) is connected to the water vapor inlet end on the upper right side of the second atomizing buffer tank (10), the second baffle (18) is installed below the connecting pipe of the second atomizing buffer tank (10), and the bottom water outlet end of the second atomizing buffer tank (10) is connected to the water inlet end on the lower left side of the second liquid storage tank (5).

5. A spray-type water working medium quasi-saturated compression high-temperature heat pump system, characterized by: The invention comprises a condenser (1), a first expansion valve (2), a second expansion valve (3), a first liquid storage tank (4), a second liquid storage tank (5), an evaporator (6), a first compressor (7), a second compressor (8), a first atomizing buffer tank (9), a second atomizing buffer tank (10), a first atomizing nozzle (13), a second atomizing nozzle (14), a first spray high-pressure pump (15), a second spray high-pressure pump (16), a first baffle (17), a second baffle (18), a fourth regulating valve (24) and a seventh regulating valve (27), The condenser (1) is provided with a hot water inlet and a hot water outlet. The evaporator (6) is provided with a low-level heat source water inlet end and a low-level heat source water outlet end. The refrigerant outlet of the evaporator (6) is connected to the left air inlet of the first atomizing buffer tank (9), the steam outlet of the first atomizing buffer tank (9) is connected to the inlet of the first compressor (7), the outlet of the first compressor (7) is connected to the left air inlet of the second atomizing buffer tank (10), the steam outlet of the second atomizing buffer tank (10) is connected to the inlet of the second compressor (8), the outlet of the second compressor (8) is connected to the refrigerant inlet of the condenser (1). The refrigerant outlet of the condenser (1) is connected to the liquid inlet of the second expansion valve (3), the liquid outlet of the second expansion valve (3) is connected to the liquid inlet of the second liquid storage tank (5), the bottom liquid outlet of the second liquid storage tank (5) is connected to the liquid inlet of the first expansion valve (2), the liquid outlet of the first expansion valve (2) is connected to the liquid inlet of the first liquid storage tank (4), and the bottom liquid outlet of the first liquid storage tank (4) is connected to the refrigerant inlet of the evaporator (6). The left liquid outlet end of the first liquid storage tank (4) is connected to the lower right steam inlet end of the first atomizing buffer tank (9), and a first spray high-pressure pump (15) and a fourth regulating valve (24) are sequentially provided on the pipeline connecting the left liquid outlet end of the first liquid storage tank (4) and the lower right steam inlet end of the first atomizing buffer tank (9). The pipeline connecting the left liquid outlet end of the first liquid storage tank (4) and the lower right steam inlet end of the first atomizing buffer tank (9) extends to the end inside the first atomizing buffer tank (9) and is provided with a first atomizing nozzle (13). The left liquid outlet end of the second liquid storage tank (5) is connected to the lower right steam inlet end of the second atomizing buffer tank (10), and a second spray high-pressure pump (16) and a seventh regulating valve (27) are sequentially provided on the pipeline connecting the left liquid outlet end of the second liquid storage tank (5) and the lower right steam inlet end of the second atomizing buffer tank (10). The pipeline connecting the left liquid outlet end of the second liquid storage tank (5) and the lower right steam inlet end of the second atomizing buffer tank (10) extends to the end inside the second atomizing buffer tank (10) and is provided with a second atomizing nozzle (14). The water vapor outlet end of the first liquid storage tank (4) is connected to the water vapor inlet end on the upper right side of the first atomizing buffer tank (9), the first baffle (17) is installed below the connecting pipe of the first atomizing buffer tank (9), and the bottom water outlet end of the first atomizing buffer tank (9) is connected to the water inlet end on the lower left side of the first liquid storage tank (4). The water vapor outlet end of the second liquid storage tank (5) is connected to the water vapor inlet end on the upper right side of the second atomizing buffer tank (10), the second baffle (18) is installed below the connecting pipe of the second atomizing buffer tank (10), and the bottom water outlet end of the second atomizing buffer tank (10) is connected to the water inlet end on the lower left side of the second liquid storage tank (5).

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