CN115289719A - Novel air circulation heat pump system adopting coupling of tunnel wind and solar energy - Google Patents

Novel air circulation heat pump system adopting coupling of tunnel wind and solar energy Download PDF

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CN115289719A
CN115289719A CN202210899867.XA CN202210899867A CN115289719A CN 115289719 A CN115289719 A CN 115289719A CN 202210899867 A CN202210899867 A CN 202210899867A CN 115289719 A CN115289719 A CN 115289719A
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air
heat
water
hot water
heat pump
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王树刚
朱伟男
王继红
吴小舟
张腾飞
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Dalian University of Technology
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Dalian University of Technology
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00Heat pumps
    • F25B30/06Heat pumps characterised by the source of low potential heat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00Solar heat collectors specially adapted for particular uses or environments
    • F24S20/40Solar heat collectors combined with other heat sources, e.g. using electrical heating or heat from ambient air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S60/00Arrangements for storing heat collected by solar heat collectors
    • F24S60/30Arrangements for storing heat collected by solar heat collectors storing heat in liquids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S80/00Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
    • F24S80/30Arrangements for connecting the fluid circuits of solar collectors with each other or with other components, e.g. pipe connections; Fluid distributing means, e.g. headers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24TGEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T50/00Geothermal systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B27/00Machines, plants or systems, using particular sources of energy
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B27/00Machines, plants or systems, using particular sources of energy
    • F25B27/002Machines, plants or systems, using particular sources of energy using solar energy
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B40/00Subcoolers, desuperheaters or superheaters
    • F25B40/06Superheaters

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

The invention belongs to the field of comprehensive utilization of renewable energy sources, and provides a novel air circulation heat pump system adopting coupling of tunnel wind and solar energy. The system comprises a solar heat collecting subsystem, a tunnel air subsystem and an air circulation heat pump subsystem, wherein air is washed, preheated and humidified through the tunnel air subsystem, the solar heat collecting subsystem is used for assisting in heat supply, and an electrically driven turbocharger is used for generating high-temperature air to realize heating in winter. The invention improves the outdoor heat exchange condition of the air circulation heat pump system, increases latent heat exchange and improves the heat exchange efficiency; an air compressor and a turbine expander in an electric turbocharger are directly adopted as an air compressing device and an expansion device in the air circulation heat pump, so that air circulation heat pump equipment is simplified; the solar heat collecting device is adopted to prepare and store domestic hot water, and the hot water of the hot water spraying device is used for supplying heat to the room and the auxiliary air circulation heat pump is used for supplying heat to the room.

Description

Novel air circulation heat pump system adopting coupling of tunnel wind and solar energy
Technical Field
The invention relates to the field of comprehensive utilization of renewable energy sources, in particular to a novel air circulation heat pump system adopting coupling of tunnel wind and solar energy.
Background
China has abundant geothermal energy and solar energy resources, has great development potential, and meanwhile, heat pump technology is mature in recent years, has the advantages of high efficiency, energy saving, and capability of meeting the requirements of refrigeration and heat supply, for example, a novel air source heat pump system disclosed in patent CN110594852A adopts a tunnel air device to preheat air for solving the problem of defrosting of an air source heat pump in winter. However, the traditional refrigerant adopted in the scheme has the problems of environmental damage and global warming, so that the search for a green refrigerant has great significance for environmental protection. The air circulation heat pump takes air as a refrigerant, is nontoxic and easy to obtain, solves the problem of environmental pollution, and solves the problem that the indoor heat load is not matched with the heat supply of the traditional heat pump.
Although the conventional coupling system of the tunnel wind and the air source heat pump can effectively solve the problem of defrosting, the dehumidification treatment of the air inlet still needs to be considered, and the air circulation heat pump adopts air as a circulation refrigerant, so that the dehumidification problem can be completely avoided. For example, patent CN109186116A discloses an air circulation heat pump using a blower as a driving device, which uses a turbocharger to replace a compressor and a turbine, so as to avoid dehumidification and effectively solve the problems of great influence of outdoor temperature on energy efficiency, defrosting, and the like. However, the air blower is adopted as the driving device to drive the turbocharger to work, and the problems of complicated equipment, single heat exchange mode, low heating efficiency and the like exist.
Disclosure of Invention
To there be winter needs to dehumidify the entry air in tunnel wind and traditional air source heat pump coupled system, indoor heat load mismatches with traditional heat pump heat supply load, and air cycle heat pump heat supply efficiency is on the low side, the complicated scheduling problem of equipment, a novel air cycle heat pump system who adopts tunnel wind and solar energy coupling is proposed, preheat the air through tunnel wind device, the humidification, utilize solar energy auxiliary heating, and adopt electric drive turbo charger to realize the novel air cycle heat pump system who heats winter.
The technical scheme of the invention is as follows:
a novel air circulation heat pump system adopting tunnel wind and solar energy coupling comprises a solar heat collection subsystem, a tunnel wind subsystem and an air circulation heat pump subsystem; the solar heat collection subsystem mainly comprises a solar water heater 1, a heat storage water tank 2, a circulating water pump 8, a valve and a plurality of pipelines; the air circulation heat pump subsystem mainly comprises an electric turbocharger-gas compressor 3, an electric turbocharger-turbo expander 4, a heat regenerator 5, a heat exchanger 6, a fan coil 7, a circulating water pump 8, a valve and a plurality of pipelines; the tunnel air subsystem mainly comprises a tunnel air pipe 9, a hot water spray device 11, a filter screen 12, an air cap 13, a water collecting tank 14, a valve and a plurality of pipelines, wherein the tunnel air pipe 9 comprises an air inlet pipe section, an underground pipe section and an air outlet pipe section which are sequentially connected; the upper part of the air inlet pipe section is provided with an air cap 13, and the middle part is provided with a filter screen 12 and a hot water spray device 11; the underground pipe section is buried underground, and a water collecting tank 14 is arranged at the bottom of the underground pipe section and is used for collecting particle pollutants in air and gas pollutants soluble in water; the air outlet pipe section is positioned above the ground.
The water replenishing tank 18 is respectively connected with the water inlets of the solar water heater 1 and the heat storage water tank 2; the water outlet of the solar water heater 1 is respectively connected with the water inlet of the heat storage water tank 2 and the inlet of the hot water outlet pipeline 10 through a three-way valve a 15; the outlet of the hot water outlet pipe 10 is connected to the inlet of a hot water shower 11.
One water outlet pipe of the heat storage water tank 2 is merged into the hot water outlet pipeline 10 through a three-way valve a 15; the other water outlet pipe of the heat storage water tank 2 is respectively connected with the water side outlet of the heat exchanger 6 and the inlet of the fan coil 7 through a three-way valve b16, and the fan coil 7 is respectively connected with the water inlet of the heat storage water tank 2 and the water side inlet of the heat exchanger 6 after passing through a circulating water pump 8 and a three-way valve c 17.
An air side outlet of the heat exchanger 6 is connected with an air inlet end of the heat regenerator 5, an air outlet end of the heat regenerator 5 is connected with an air inlet of the turbocharger-turboexpander 4, and an air outlet of the turbocharger-turboexpander 4 is directly connected to an outdoor environment; the air outlet pipe section is connected with the other air inlet end of the heat regenerator 5; the other air outlet end of the heat regenerator 5 is connected with an inlet of the electric turbocharger-air compressor 3, and an outlet of the electric turbocharger-air compressor 3 is connected with an air side inlet of the heat exchanger 6.
The preheated and humidified air from the underground duct 9 is preheated again by the heat regenerator 5, passes through the electric turbocharger-air compressor 3, is changed into high-temperature air, is sent into the heat exchanger 6, exchanges heat with the water side of the heat exchanger 6, enters the heat regenerator 5 to preheat the air from the underground duct 9, then enters the electric turbocharger-turbo expander 4, passes through the electric turbocharger-turbo expander 4 and is discharged outdoors.
The heat loss generated by the shell of the electric turbocharger-compressor 3 and the motor is recovered through an external heat recovery tank and heats the air from the heat regenerator 5, and then enters the electric turbocharger-compressor 3.
The underground air duct 9 transmits air from the outside, the air is washed and humidified by the hot water spray device 11, the humidified air flows through the underground pipe section to exchange heat with soil, and the preheated air enters the heat regenerator 5 through the air outlet pipe section.
The tunnel air pipe 9 can be arranged as a horizontal, vertical or inclined tunnel.
The air circulation heat pump subsystem and the solar heat collection subsystem jointly supply heat to the fan coil 7 in the daytime, wherein the solar water heater 1 is used for preparing hot water for a hot water spraying device 11 of a tunnel air pipe 9 and the hot water storage tank 2; at night, the solar water heater 1 stops making hot water, the heat storage water tank 2 and the air circulation heat pump subsystem jointly supply heat to the fan coil 7, and meanwhile, the heat storage water tank 2 supplies hot water to the hot water spraying device 11.
Compared with the prior art, the invention has the beneficial effects that:
1. the geothermal energy is in a certain depth range below the earth surface, the temperature maintains approximately constant renewable energy throughout the year due to the attenuation and delay of ground temperature waves, the air circulation heat pump taking the tunnel wind as a low-level heat source in winter can effectively inhibit the attenuation of heat, and the performance coefficient of the heat pump can be greatly improved. In practical application, due to the improvement of outdoor heat exchange conditions of the air circulation heat pump system, the COP value of the heat pump coefficient of performance can be greatly improved, and the method not only has an obvious energy-saving effect, but also is beneficial to the development and utilization of geothermal resources in China. From the perspective of protecting the atmospheric environment, reducing carbon dioxide emission and utilizing renewable energy, the method has great utilization value for the current stage of China and has practical significance for the future.
2. The defrosting problem is not considered, air is used as a circulating medium, and the air is non-corrosive, free to use, free of phase change in a general working state and wide in working range; the air is used as the circulating secondary refrigerant, so that the dehumidification problem is avoided, the working environment temperature is lower than that of an air source heat pump, and the air source heat pump is more suitable for heating in winter in severe cold areas.
3. Outdoor air flows exchange heat with soil through a tunnel, enters the heat regenerator and is preheated again, the temperature of a low-level heat source is improved, and the coefficient of performance COP of the air circulation heat pump is improved; the air is washed and humidified before entering the air circulation heat pump, so that the influence of impurity corrosion on equipment on the heat exchange effect is avoided, and meanwhile, the humidified air increases latent heat exchange and improves the heat exchange efficiency.
4. The air compressing device and the expansion device in the air circulation heat pump subsystem directly adopt the air compressor and the turbine expander in the electric turbocharger, so that the problem that the expansion device is difficult to miniaturize is avoided, the air circulation heat pump equipment is greatly simplified, and the practical application is facilitated.
5. The solar heat collection device can reasonably use solar energy to prepare and store domestic hot water, and the prepared hot water is matched with the air circulation heat pump to supply heat to the room, so that the energy utilization rate is improved, and more energy is saved.
Drawings
FIG. 1 is a schematic diagram of a novel air cycle heat pump system using tunnel wind coupled with solar energy;
FIG. 2 is a partial schematic view of a ducted air humidification process;
FIG. 3 is a partial schematic view of a ducted air drain treatment.
In the figure: 1-a solar water heater; 2-a heat storage water tank; 3-electric turbocharger-compressor; 4-electric turbocharger-turboexpander; 5-a heat regenerator; 6-a heat exchanger; 7-a fan coil; 8-a circulating water pump; 9-a tunnel air pipe; 10-hot water outlet pipe; 11-hot water spray devices; 12-a filter screen; 13-blast cap; 14-a water collecting tank; 15-three-way valve a; 16-three-way valve b; 17-three-way valve c; and 18-a water replenishing tank.
Detailed Description
The following further describes the specific embodiments of the present invention with reference to the drawings and technical solutions.
The working process of the novel air circulation heat pump system adopting the coupling of tunnel wind and solar energy is described by combining with figure 1, and the system connection mode is as follows: the water replenishing tank 18 is respectively connected with the water inlets of the solar water heater 1 and the heat storage water tank 2; the water outlet of the solar water heater 1 is respectively connected with the water inlet of the heat storage water tank 2 and the inlet of the hot water outlet pipeline 10 through a three-way valve a 15; the outlet of the hot water outlet pipe 10 is connected to the inlet of a hot water shower 11. One water outlet pipe of the heat storage water tank 2 is merged into the hot water outlet pipeline 10 through a three-way valve a 15; the other water outlet pipe of the heat storage water tank 2 is respectively connected with the water side outlet of the heat exchanger 6 and the inlet of the fan coil 7 through a three-way valve b16, and the fan coil 7 is respectively connected with the water inlet of the heat storage water tank 2 and the water side inlet of the heat exchanger 6 after passing through a circulating water pump 8 and a three-way valve c 17. An air side outlet of the heat exchanger 6 is connected with an air inlet end of the heat regenerator 5, an air outlet end of the heat regenerator 5 is connected with an air inlet of the turbocharger-turboexpander 4, and an air outlet of the turbocharger-turboexpander 4 is directly connected to an outdoor environment; the air outlet pipe section is connected with the other air inlet end of the heat regenerator 5; the other air outlet end of the heat regenerator 5 is connected with an inlet of the electric turbocharger-air compressor 3, and an outlet of the electric turbocharger-air compressor 3 is connected with an air side inlet of the heat exchanger 6.
The working process of the system is described with reference to fig. 1, and the system working process is as follows: air from the outside is washed and humidified by a hot water spraying device 11 in the underground air pipe 9 after passing through a filter screen 12, the preheated and humidified air is preheated again by a heat regenerator 5, and is changed into high-temperature air after passing through an electric turbocharger-air compressor 3, the high-temperature air is sent into a heat exchanger 6 to exchange heat with the water side of a fan coil, the air after heat exchange and temperature reduction enters the heat regenerator 5 to preheat the air from the underground air pipe 9, then enters an electric turbocharger-turbo expander 4, and transmits part of energy to the electric turbocharger-turbo air compressor 3 through the electric turbocharger-turbo expander 4, and finally is discharged to the outside.
In this embodiment, the general compressor and expansion device in the air circulation heat pump subsystem directly adopt the compressor and turbo expander in the electric turbocharger, and the heat loss generated by the compressor housing and the motor is recovered by the external heat recovery tank and heats the air from the heat regenerator 5, and then enters the electric turbocharger-compressor 3.
In this embodiment, as shown in fig. 2, air from the outside enters the tunnel air duct 9, the air is washed and humidified by the hot water spray device 11, then flows through the underground pipe section to exchange heat with soil, and the preheated air enters the heat regenerator 5 through the air outlet pipe section.
In this embodiment, as shown in fig. 3, the underground duct 9 can be arranged as a horizontal, vertical or inclined underground duct, and the bottom of the underground duct section is provided with a water collecting tank 14 for collecting particulate pollutants in the air and gas pollutants soluble in water.
In this embodiment, in winter daytime, the three-way valve a15 is adjusted to cut off the hot water supply from the hot water storage tank 2 to the hot water spray device 11, and only the solar water heater 1 supplies hot water to the hot water spray device 11. Hot water of the solar water heater 1 is mainly delivered to the heat storage water tank 2; by adjusting the three-way valve b16 and the three-way valve c17, the hot water storage tank 2 supplies hot water for the fan coil 7, and can supply heat for the indoor space by combining with the air circulation heat pump subsystem.
In this embodiment, at night in winter, the three-way valve a15 is adjusted to open the hot water supply of the hot water storage tank 2 to the hot water spray device 11, cut off the hot water supply of the solar water heater 1 to the hot water spray device 11, and simultaneously cut off the hot water supply of the solar water heater 1 to the hot water storage tank 2; by adjusting the three-way valve b16 and the three-way valve c17, the hot water storage tank 2 supplies hot water for the fan coil 7, and can supply heat for the indoor space by combining with the air circulation heat pump subsystem.
In summary, the present invention provides a novel air circulation heat pump system using tunnel wind and solar energy coupling, which comprises a solar heat collecting subsystem, a tunnel wind subsystem and an air circulation heat pump subsystem. The outdoor air is preheated and humidified through the tunnel air subsystem, the temperature of a low-level heat source is increased, latent heat exchange is increased, and high-temperature air generated by an electrically driven turbocharger in the air circulation heat pump subsystem is used for supplying heat to the indoor; the solar heat collecting subsystem is used for producing hot water, and the hot water is supplied to the tunnel wind subsystem and is matched with the air circulation heat pump subsystem to supply heat to the indoor. The system utilizes geothermal energy and solar energy in renewable energy sources, realizes the maximization of energy utilization by matching with the air circulation heat pump, and improves the heat exchange performance of the air circulation heat pump on the premise of no environmental pollution. Compare in the system of tunnel wind and traditional air source heat pump coupling, the dehumidification problem has been avoided to this system, adopts the air as the circulation medium, neither polluted environment, acquires easily again, has also solved the unmatched problem of indoor heat load and traditional heat pump heat supply volume. Compared with a single air circulation heat pump, the system improves the temperature of air entering the air circulation heat pump under the conditions of washing, preheating and humidifying of the tunnel air device, increases a latent heat exchange mode, can reduce the corrosion of the air to equipment by the washed air, and simultaneously supplies heat to the indoor by combining hot water prepared by the solar water heater and the air circulation heat pump, so that the low-carbon operation of a building is met; the air compressor and the turbine expander in the electric turbocharger are directly adopted by the air compressing device and the expansion device, so that the problem that the expander is difficult to miniaturize is avoided, the air circulation heat pump equipment is greatly simplified, and the practical application is facilitated. The system realizes comprehensive utilization of renewable energy sources, ensures heat exchange efficiency and full utilization of energy sources, and solves the problem of indoor heating in winter.
Finally, it should be noted that the invention has been described in detail above with general description and specific examples, but it is obvious that modifications and improvements can be made on the basis of the invention, as will be apparent to those skilled in the art. Accordingly, it is intended to cover such modifications, improvements and equivalents as may be made without departing from the spirit of the invention.

Claims (5)

1. A novel air circulation heat pump system adopting tunnel wind and solar energy coupling is characterized in that the novel air circulation heat pump system adopting tunnel wind and solar energy coupling comprises a solar heat collection subsystem, a tunnel wind subsystem and an air circulation heat pump subsystem; the solar heat collection subsystem mainly comprises a solar water heater (1), a heat storage water tank (2), a circulating water pump (8), a valve and a plurality of pipelines; the air circulation heat pump subsystem mainly comprises an electric turbocharger-gas compressor (3), an electric turbocharger-turbo expander (4), a heat regenerator (5), a heat exchanger (6), a fan coil (7), a circulating water pump (8), a valve and a plurality of pipelines; the tunnel air subsystem mainly comprises a tunnel air pipe (9), a hot water spray device (11), a filter screen (12), an air cap (13), a water collecting tank (14), a valve and a plurality of pipelines, wherein the tunnel air pipe (9) comprises an air inlet pipe section, an underground pipe section and an air outlet pipe section which are sequentially connected; the upper part of the air inlet pipe section is provided with an air cap (13), and the middle part is provided with a filter screen (12) and a hot water spray device (11); the underground pipe section is buried underground, and a water collecting tank (14) is arranged at the bottom of the underground pipe section and is used for collecting particle pollutants and water-soluble gas pollutants in the air; the air outlet pipe section is positioned above the ground;
the water replenishing tank (18) is respectively connected with the water inlets of the solar water heater (1) and the heat storage water tank (2); the water outlet of the solar water heater (1) is respectively connected with the water inlet of the heat storage water tank (2) and the inlet of the hot water outlet pipeline (10) through a three-way valve a (15); the outlet of the hot water outlet pipeline (10) is connected to the water inlet of the hot water spraying device (11);
one path of water outlet pipe of the heat storage water tank (2) is merged into a hot water outlet pipeline (10) through a three-way valve a (15); the other path of water outlet pipe of the heat storage water tank (2) is respectively connected with a water side outlet of the heat exchanger (6) and an inlet of the fan coil (7) through a three-way valve b (16), and the fan coil (7) is respectively connected with a water inlet of the heat storage water tank (2) and a water side inlet of the heat exchanger (6) after passing through a circulating water pump (8) and a three-way valve c (17);
an air side outlet of the heat exchanger (6) is connected with an air inlet end of the heat regenerator (5), an air outlet end of the heat regenerator (5) is connected with an air inlet of the turbocharger-turbine expander (4), and an air outlet of the turbocharger-turbine expander (4) is directly connected to an outdoor environment; the air outlet pipe section is connected with the other air inlet end of the heat regenerator (5); the other air outlet end of the heat regenerator (5) is connected with an inlet of an electric turbocharger-air compressor (3), and an outlet of the electric turbocharger-air compressor (3) is connected with an inlet of the air side of the heat exchanger (6);
preheated and humidified air from the underground duct air pipe (9) is preheated again through the heat regenerator (5), and is changed into high-temperature air after passing through the electric turbocharger-air compressor (3) and is sent into the heat exchanger (6), the high-temperature air exchanges heat with the water side of the heat exchanger (6), the air after heat exchange and temperature reduction enters the heat regenerator (5) to preheat the air from the underground duct air pipe (9), then enters the electric turbocharger-turbo expander (4), and is discharged outdoors after passing through the electric turbocharger-turbo expander (4).
2. The novel air circulation heat pump system adopting tunnel wind and solar energy coupling as claimed in claim 1, characterized in that the heat loss generated by the electric turbocharger-compressor (3) housing and the electric motor is recovered through an external heat recovery tank and heats the air from the heat regenerator (5) and then enters the electric turbocharger-compressor (3).
3. The novel air circulation heat pump system adopting tunnel wind and solar energy coupling as claimed in claim 1 or 2, wherein the tunnel wind pipe (9) transmits air from the outside, the air is washed and humidified by the hot water spray device (11), the humidified air flows through the underground pipe section to exchange heat with soil, and the preheated air enters the heat regenerator (5) through the wind outlet pipe section.
4. The novel air circulation heat pump system with coupling of tunnel wind and solar energy as claimed in claim 3, characterized in that the tunnel wind pipe (9) can be set as horizontal, vertical or inclined tunnel.
5. The novel air circulation heat pump system adopting tunnel wind and solar energy coupling as claimed in claim 1, characterized in that the air circulation heat pump subsystem and the solar energy heat collecting subsystem jointly supply heat to the fan coil (7) in daytime, wherein the solar water heater (1) produces hot water for the hot water spray device (11) of the tunnel wind pipe (9) and the hot water storage tank (2); at night, the solar water heater (1) stops making hot water, the heat storage water tank (2) and the air circulation heat pump subsystem jointly supply heat to the fan coil (7), and meanwhile, the heat storage water tank (2) supplies hot water to the hot water spraying device (11).
CN202210899867.XA 2022-07-28 2022-07-28 Novel air circulation heat pump system adopting coupling of tunnel wind and solar energy Pending CN115289719A (en)

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Publication number Priority date Publication date Assignee Title
CN206330247U (en) * 2016-12-30 2017-07-14 西安工程大学 Based on the air through tunnel cold and heat supply system compound with evaporation cooling channel air-conditioning
CN109186116A (en) * 2018-07-10 2019-01-11 大连理工大学 A kind of air cycle heat pump system using turbocharger
CN110594852A (en) * 2019-09-30 2019-12-20 天津和汇能源科技发展有限公司 Novel air source heat pump system
CN110671770A (en) * 2019-10-30 2020-01-10 中国建筑西北设计研究院有限公司 Low-energy-consumption rural house indoor thermal environment regulation and control system
CN211146671U (en) * 2019-09-30 2020-07-31 天津和汇能源科技发展有限公司 Phase change house based on tunnel wind, air source heat pump and solar energy runner dehumidification
CN215412086U (en) * 2021-07-15 2022-01-04 西安航空学院 Tunnel wind heating and cooling system for rural buildings in hot-summer and cold-winter areas

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206330247U (en) * 2016-12-30 2017-07-14 西安工程大学 Based on the air through tunnel cold and heat supply system compound with evaporation cooling channel air-conditioning
CN109186116A (en) * 2018-07-10 2019-01-11 大连理工大学 A kind of air cycle heat pump system using turbocharger
CN110594852A (en) * 2019-09-30 2019-12-20 天津和汇能源科技发展有限公司 Novel air source heat pump system
CN211146671U (en) * 2019-09-30 2020-07-31 天津和汇能源科技发展有限公司 Phase change house based on tunnel wind, air source heat pump and solar energy runner dehumidification
CN110671770A (en) * 2019-10-30 2020-01-10 中国建筑西北设计研究院有限公司 Low-energy-consumption rural house indoor thermal environment regulation and control system
CN215412086U (en) * 2021-07-15 2022-01-04 西安航空学院 Tunnel wind heating and cooling system for rural buildings in hot-summer and cold-winter areas

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