Compressor-free water vapor vertical heating heat pump

Abstract

A vacuum pressure gauge and a vacuumizing valve are arranged on a shell, close to the top end, of a vertical heat pump main machine barrel. A secondary circulating water pipe box is arranged in the vertical heat pump host barrel, the interior of the secondary circulating water pipe box is divided into an inlet chamber and an outlet chamber by a secondary circulating water inlet and outlet partition plate, and a secondary circulating water inlet and a secondary circulating water outlet which are respectively communicated with the inlet chamber and the outlet chamber are formed in the top end of the secondary circulating water pipe box; and the secondary circulating water outlet is connected with a secondary circulating water pump. The system has the advantages that the electromagnetic heater is selected as a heat source to replace a compressor, the operation noise of the unit can be reduced by 90-95%, and mute operation can be basically realized. As moving parts of the compressor are omitted, the equipment maintenance amount is greatly reduced; the service life of the unit is almost the same as that of a building, and the service life is greatly prolonged.

Description

Technical Field

[0001] This invention relates to a heating heat pump, specifically a compressor-free vertical steam heating heat pump. Background Technology

[0002] Existing heating heat pumps (water source heat pumps, air source heat pumps, and soil heat pumps) generally use compressors with Freon as the working medium, and their coefficient of performance (COP) is approximately 2-4.5. These compressors have relatively high shaft power during operation, and a portion of this power is used to overcome the frictional resistance of the lubricating oil and piston, resulting in a power loss of about 15%. Furthermore, these compressors are quite noisy during operation, especially at night, which affects residents' sleep quality. Summary of the Invention

[0003] This invention provides a compressor-free vertical steam heating heat pump to solve the aforementioned problems in the prior art.

[0004] The technical solution of the present invention is: a compressorless steam vertical heating heat pump, characterized in that it includes a vertical heat pump main body, and a condensation system, a forced spray evaporation system, and a pool steam system are respectively provided in the upper part, lower part, and bottom of the vertical heat pump main body; a vacuum pressure gauge and a vacuum valve are provided on the shell near the top of the vertical heat pump main body; a secondary circulating water pipe box is provided in the vertical heat pump main body, and the interior of the secondary circulating water pipe box is divided into an inlet chamber and an outlet chamber by a secondary circulating water inlet and outlet partition; a secondary circulating water inlet and a secondary circulating water outlet are respectively provided at the top of the secondary circulating water pipe box, which communicate with the inlet chamber and the outlet chamber; and a secondary circulating water pump is connected to the secondary circulating water outlet.

[0005] The advantages of this invention are: The heat source uses an electromagnetic heater instead of a compressor. Because the compressor, the main noise source, is eliminated, leaving only the electromagnetic heater, the miniature cooling fan, and the shielded pump with minimal noise, the unit's operating noise can be reduced by 90-95%, essentially achieving silent operation. The elimination of the compressor's moving parts significantly reduces equipment maintenance. It also eliminates the problems of overheating of refrigerant vapor, liquid slugging, and surge that can occur with air-source heat pump compressors. Since the only moving part on the unit is the primary heat source high-temperature circulating water pump, the unit's lifespan is almost equivalent to that of a building, greatly extending its service life. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0008] Explanation of reference numerals in the attached drawings: 1. Primary heat source high-temperature circulating water pump; 2. Electromagnetic heater coil; 3. Vertical heat pump main unit cylinder; 4. Heat transfer tube bundle; 5. Vacuum pressure gauge; 6. Secondary circulating water pipe box; 61. Inlet chamber; 62. Outlet chamber; 7. Secondary circulating water inlet; 8. Secondary circulating water inlet / outlet baffle; 9. Secondary circulating water outlet; 10. Secondary circulating water pump; 11. Electromagnetic heater coil lead; 12. Electromagnetic heater control box; 13. Output power regulating device; 14. Insulation layer; 15. Water level line; 16. Spray device water supply pipe; 17. Atomizing nozzle; 18. Condensate droplets; 19. Vacuum valve; 20. Water tank. Detailed Implementation

[0009] See Figure 1 This invention relates to a compressorless vertical steam heating heat pump, characterized in that it includes a vertical heat pump main body 3, within which a condensation system, a forced spray evaporation system, and a pool steam system are respectively provided at the upper, lower, and bottom parts; a vacuum pressure gauge 5 and a vacuum valve 19 are provided on the shell near the top of the vertical heat pump main body 3; a secondary circulating water pipe box 6 is provided in the vertical heat pump main body 3, and the interior of the secondary circulating water pipe box 6 is divided into an inlet chamber 61 and an outlet chamber 62 by a secondary circulating water inlet and outlet partition 8; a secondary circulating water inlet 7 and a secondary circulating water outlet 9 are respectively provided at the top of the secondary circulating water pipe box 6, communicating with the inlet chamber 61 and the outlet chamber 62; and a secondary circulating water pump 10 is connected to the secondary circulating water outlet 9.

[0010] The condensation system consists of a heat transfer tube bundle 4, with its two ends connected to the inlet chamber 61 and the outlet chamber 62, respectively.

[0011] The forced spray evaporation system includes a primary heat source high-temperature circulating water pump 1, a spray device water supply pipe 16, and atomizing nozzles 17. Multiple atomizing nozzles 17 are horizontally arranged above the pool evaporation system and below the condensation system. The bottom end of the spray device water supply pipe 16 extends from the pool evaporation system out of the vertical heat pump main body 3, and is connected in series with the primary heat source high-temperature circulating water pump 1 and then connected to the atomizing nozzles 17.

[0012] The pool steam system includes an electromagnetic heater coil 2, an electromagnetic heater coil lead 11, and an electromagnetic heater control box 12. The electromagnetic heater coil 2 is wound around the outside of the vertical heat pump main body 3. The two ends of the electromagnetic heater coil 2 are connected to the output end of the electromagnetic heater control box 12 through the electromagnetic heater coil lead 11. An output power adjustment device 13 is provided on the electromagnetic heater control box 12.

[0013] The pool steam system is an electromagnetic heater, which includes an electromagnetic heater coil 2, an electromagnetic heater coil lead 11, and an electromagnetic heater control box 12. The electromagnetic heater coil 2 is wound around the outside of the vertical heat pump main body 3. The two ends of the electromagnetic heater coil 2 are connected to the output end of the electromagnetic heater control box 12 through the electromagnetic heater coil lead 11. An output power adjustment device 13 is provided on the electromagnetic heater control box 12.

[0014] A heat insulation layer 14 is provided at the bottom end of the vertical heat pump main body 3.

[0015] In application, a vacuum pump is connected to the vacuum valve 19 of this invention. Water is filled at the bottom of the vertical heat pump main body 3 (i.e., in the water tank 20), with the water level 15 slightly higher than the upper end of the electromagnetic heater coil 2.

[0016] The working process of this invention (unit) is as follows: The vacuum pump is turned on to bring the absolute pressure inside the unit to 32.55 kPa. Then, the secondary circulating water pump 10 is started; after the electromagnetic heater is started, the water inside the unit is heated until it boils, generating steam. The primary heat source of the unit is the flash-evaporated steam and the large amount of saturated steam generated by the forced spray evaporation system and the atomizing nozzle 17, which, along with the secondary circulating water in the heat transfer tube bundle 4 of the condensation system, releases heat and condenses through the tube wall of the heat transfer tube bundle 4. This heat exchange with the secondary circulating water, and the heated secondary circulating water, driven by the pressure of the secondary circulating water pump 10, delivers heat to users requiring heating through the secondary circulating water outlet 9. After the users release heat, the output secondary circulating water, under the pressure of the secondary circulating water pump 10, enters the heat transfer tube bundle 4 again, where it is further heated by the condensation heat of the steam outside the heat transfer tube bundle 4. The heated secondary circulating water, under the pressure of the secondary circulating water pump 10, then re-enters the user requiring heating to release heat. This cycle repeats continuously, forming a self-circulating secondary circulating water system.

[0017] The primary heat source steam generation of this invention is provided by two evaporation systems within the unit (forced spray evaporation system and pool steam system). The pool steam system uses an electromagnetic heater to provide heat to heat the water inside the unit, generating steam. After the water inside the unit is heated, the primary heat source high-temperature circulating water pump 1 starts, pressurizing the water. The pressurized water flows along the water delivery pipe 16 of the spray device and is sprayed at high speed from the atomizing nozzle 17, changing phase to saturated steam. The saturated steam generated by the forced spray evaporation system and the pool steam system comes into contact with the heat transfer tube bundle 4 of the condensation system at the top of the unit. Secondary circulating water flows inside the heat transfer tube bundle 4, and there is a temperature difference of about 15°C between the steam temperature inside the unit and the secondary circulating water (i.e., inside and outside the heat transfer tube bundle 4). Therefore, a low-temperature and low-pressure region is naturally formed at (around) the heat transfer tube bundle 4, where the saturated steam rapidly condenses and releases heat. The condensate droplets 18, after releasing heat, flow back to the water tank 20 of the pool steam system at the bottom of the unit under their own gravity. The water continues to be heated by the electromagnetic heater coil 2. Because the temperature difference Δtm between the inlet and outlet of the secondary circulating water is approximately 10℃, and the temperature of the saturated water vapor after condensation is 10℃ (saturated water vapor temperature 70℃, subcooling 10℃), the electromagnetic heater only needs to heat the saturated water in the water tank 20 from 60℃ to 70℃. The power consumed by the electromagnetic heater is: P = m × cp × Δtm × 10℃ = 26kg × 4.187kJ × (70 - 60℃) ≈ 1088.62kJ, which can be converted to kW: 1088.62 ÷ 3600 ≈ 0.3kW. That is, only 0.3kW is needed to heat the condensate from 60℃ to 70℃ for a 26kg water volume in the heating unit. This cycle repeats, forming a self-circulation of the secondary circulating water.

[0018] A specific embodiment of the present invention is as follows: Design a compressor-free heating heat pump with a nominal heat load of 175kW: 1. The absolute pressure inside the unit is 32.55 kPa, and the corresponding saturated steam temperature is 71℃; 2. The electromagnetic heater is designed to have a power of 30 kW·h; 3. Calculate the water vapor mass flow rate of 269 kg; 4. The internal circulation ratio of the unit is 269kg ÷ 10 = 26.9kg ≈ 26kg; 5. Secondary circulating water volume: 20 m³ / h; Head: 21 m; Pump motor power: 2.2 kW·h. 6. The primary heat source water pump has a flow rate of 1.5 m³ / h, a head of 90 m, a motor power of 0.55 kW, and a pump temperature resistance of 140℃. 7. Condenser heat transfer area: 4.2m² 2 ; 8. k value 12.3 kW / (m2.kW); 9. The secondary circulating water main pipe measures 63×3mm and is made of PPR. 10. Water supply pipe diameter for the sprinkler system: 32×3mm; material: 304 stainless steel; 11. There are 12 atomizing nozzles, the water pump outlet pressure is 9 bar, and the flow rate is 3.6 kg × 12 × 60 = 2592 kg·h × 0.5 = 1296 kg (assuming an evaporation rate of 50%). 12. Heat of saturated water vapor obtained from atomizing nozzle spraying: 1296kg×2330.6kj=3020457.6kj 3020457.6kj÷3600=839kw Enthalpy of water vapor: 2627.81 kJ - 297.20 kJ = 2330.61 kJ 2627.81kJ ÷ 297.20kJ = 8.87 (times) Steam condensation heat exchange → compared to water → water heat exchange, the heat exchange is 8.87 times greater.

[0019] Start-up test was conducted at 2:45 PM on October 30, 2025 in Linyi, Shandong. The weather was overcast, the ambient temperature was 17℃, and the absolute pressure inside the unit was 32kPa. Due to the site conditions, the water volume in the tank was 800kg and the secondary water pump flow rate was 20m·h, which was tested based on the heat transfer.

[0020] time Secondary circulating water inlet temperature (°C) Secondary circulating water outlet temperature (°C) Electromagnetic heater output power kW The secondary circulating water motor has a power rating of 2.2 kW. The primary heat source water pump motor has a power rating of 0.55 kW. Remark Remark 14:45 17 17 26.7 2.2 0.55 The initial meter reading was 781.59 kWh. Unit test power consumption: Electromagnetic heater 26.7 kW + Secondary circulating water pump 2.2 kW + Primary heat source pump 0.55 kW = 29.45 kW 15:19 28 33 797.92 degrees The unit's hourly power consumption is: 47.9 ÷ 1.8 hours = 26.61 kWh 15:49 44 50 810.44 degrees 16:33 59 70 829.49 degrees shutdown The unit was running for a total of 1.8 hours, consuming a total of 47.9 kW of electricity. 13. Heat obtained by the unit: P = 20000 × 4.187 × 11 = 921140 kJ P = 921140 kJ ÷ 3600 = 255.87 kW 14. The unit operates for 1.8 hours and generates 255.871 kW ÷ (energy consumption as shown by the electricity meter) 47.9 kW = 5.34 (cop).

[0021] 15. The sprinkler system consumes a small amount of electrical energy (0.55 kW·h for the primary heat source shielded pump motor) and produces a large amount of water vapor. Assuming the primary heat source shielded pump flow rate is 1500 kg / m³, the water flash evaporation rate is only 50%. 750kg × 2330.61kJ = 1747575kJ; 1747575kJ ÷ 3600 = 485.4kw·h, meaning that based on a steam volume of 750kg, the condensation heat release is calculated, and the unit's output energy is 485kw. If the electromagnetic heater's input power is 30kw·h, then the coefficient of performance (COP) is 485 ÷ 30 = 16.17. Currently, the COP of traditional heat pumps on the market is generally between 2 and 4.5, making the COP of this invention several times higher.

Claims

1. A compressorless vertical steam heating heat pump, characterized in that, The system includes a vertical heat pump main body (3), with a condensation system, a forced spray evaporation system, and a pool evaporation system respectively installed in the upper, lower, and bottom parts of the vertical heat pump main body (3); a vacuum pressure gauge (5) and a vacuum valve (19) are installed on the shell near the top of the vertical heat pump main body (3); a secondary circulating water pipe box (6) is installed in the vertical heat pump main body (3), and the interior of the secondary circulating water pipe box (6) is divided into an inlet chamber (61) and an outlet chamber (62) by a secondary circulating water inlet and outlet partition (8); a secondary circulating water inlet (7) and a secondary circulating water outlet (9) are respectively connected to the inlet chamber (61) and the outlet chamber (62) at the top of the secondary circulating water pipe box (6); and a secondary circulating water pump (10) is connected to the secondary circulating water outlet (9).

2. The compressorless steam vertical heating heat pump according to claim 1, characterized in that, The condensation system consists of a heat transfer tube bundle (4), with its two ends connected to the inlet chamber (61) and the outlet chamber (62), respectively.

3. The compressorless steam vertical heating heat pump according to claim 1, characterized in that, The forced spray evaporation system includes a primary heat source high-temperature circulating water pump (1), a spray device water supply pipe (16), and an atomizing nozzle (17). Multiple atomizing nozzles (17) are horizontally arranged above the pool evaporation system and below the condensation system. The bottom end of the spray device water supply pipe (16) is led out of the vertical heat pump main body (3) from the pool evaporation system and connected in series with the primary heat source high-temperature circulating water pump (1) and then connected to the atomizing nozzle (17).

4. The compressorless steam vertical heating heat pump according to claim 1, characterized in that, The pool steam system includes an electromagnetic heater coil (2), an electromagnetic heater coil lead (11), and an electromagnetic heater control box (12). The electromagnetic heater coil (2) is wound around the outside of the vertical heat pump main body (3). The two ends of the electromagnetic heater coil (2) are connected to the output end of the electromagnetic heater control box (12) through the electromagnetic heater coil lead (11). An output power adjustment device (13) is provided on the electromagnetic heater control box (12). During operation, water is filled at the bottom inside the vertical heat pump main body (3), and the water level line (15) is slightly higher than the upper end of the electromagnetic heater coil (2).

5. The compressorless steam vertical heating heat pump according to claim 1, characterized in that, A heat insulation layer (14) is provided at the bottom of the vertical heat pump main body (3).

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