CN112161313A - Solar energy and air source heat pump combined heating system - Google Patents
Solar energy and air source heat pump combined heating system Download PDFInfo
- Publication number
- CN112161313A CN112161313A CN202011074660.6A CN202011074660A CN112161313A CN 112161313 A CN112161313 A CN 112161313A CN 202011074660 A CN202011074660 A CN 202011074660A CN 112161313 A CN112161313 A CN 112161313A
- Authority
- CN
- China
- Prior art keywords
- heat
- water
- solar
- water tank
- refrigerant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D11/00—Central heating systems using heat accumulated in storage masses
- F24D11/02—Central heating systems using heat accumulated in storage masses using heat pumps
- F24D11/0214—Central heating systems using heat accumulated in storage masses using heat pumps water heating system
- F24D11/0221—Central heating systems using heat accumulated in storage masses using heat pumps water heating system combined with solar energy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/003—Filters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
Abstract
A solar energy and air source heat pump combined heating system belongs to the technical field of heating systems. The solar water heater comprises a solar heat collector, a water pump, a water tank, a heat exchanger, a compressor, a gas-liquid separator, an evaporator, an expansion valve, a filter, a refrigerant channel, a water inlet pipe, a water return pipe and heat dissipation equipment. Hot water generated in the solar heat collector is stored and stored through the water tank; the evaporator, the gas-liquid separator, the expansion valve, the compressor, the heat exchanger, the filter and the expansion valve are sequentially connected through a refrigerant channel to form a complete loop, and hot water is heated by the heat exchanger and conveyed to the water tank for storage and heat storage. Hot water in the water tank enters the heat dissipation device through the water inlet pipe to supply heat for a user, and then returns to the water tank through the water return pipe to enter the next working cycle. Utilize multiple energy to heat, also can select different heating modes to different climatic conditions simultaneously, system overall structure is simple, and heating effect is better.
Description
Technical Field
The invention relates to a heating system combining solar energy and an air source heat pump, which can be widely applied to the field of heating in high-altitude and severe cold areas and belongs to the technical field of heating systems.
Background
With the increasing severity of the problem of energy shortage, the traditional coal-fired heating mode cannot meet the daily life heating requirements of residents in high altitude and severe cold regions, and can cause serious environmental pollution, so that a clean heating technology suitable for the severe cold regions is urgently required to be sought.
The air source heat pump is an energy-saving device which can utilize high-level energy to enable heat to flow from low-level heat source air to a high-level heat source, and is a common heating mode in the current market, but because outdoor temperature in winter in severe cold regions is very low, the performance of an air source heat pump system is seriously influenced, even the system can be damaged and cannot run, auxiliary heating equipment needs to be additionally arranged, and the heating cost is increased accordingly.
Most of alpine regions have abundant solar energy resources, so that solar energy is selected to be adopted for daily heating in part of regions. However, solar energy is greatly influenced by weather, has no continuity, cannot run in rainy and snowy days and at night, and cannot meet daily heating requirements of residents due to low heat collection efficiency and poor stability if only a solar heat collection system is used for heating.
Disclosure of Invention
The invention relates to a heating system combining solar energy and an air source heat pump, which can be widely applied to the field of heating in high-altitude and severe cold areas.
The technical problem to be solved by the invention is as follows: the heating system can be used in high and cold areas, meets the requirements of energy conservation, environmental protection and economy, and can efficiently and stably operate. Meanwhile, different heating modes can be selected according to different weather conditions, and the overall energy efficiency ratio of the system is improved as much as possible.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a solar energy air source heat pump combined heating system, includes: solar collector (1), first water pump (2), water tank (3), heat exchanger (4), compressor (5), vapour and liquid separator (6), evaporimeter (7), expansion valve (8), filter (9), refrigerant passageway (10), inlet tube (11), wet return (12), heat-radiating equipment (13), second water pump (14), third water pump (15), its characterized in that: wherein, hot water generated in the solar heat collector (1) is connected with the water tank (3) through a pipeline, and the water tank (3) is connected with the solar heat collector (1) through the first water pump (2) to form a loop; an evaporator (7), a gas-liquid separator (6), a compressor (5), a heat exchanger (4), a filter (9), an expansion valve (8) and the evaporator (7) are sequentially connected through a refrigerant channel (10) to form a complete air source heat pump heating loop, and a circulating refrigerant adopted by the air source heat pump heating loop is a novel pollution-free refrigerant R-134 a; hot water generated in the heat exchanger (4) is sent into the water tank (3) through a hot water outlet by a third water pump (15), and meanwhile, the water tank (3) is also connected with a hot water inlet of the heat exchanger (4) to form a circulation loop; hot water in the water tank (3) enters the heat dissipation equipment (13) through the water inlet pipe (11) for heating of a user, and then returns to the water tank (3) through the water return pipe (12) and the second water pump (14).
As a further improvement of the technical scheme of the invention, the water tank is a heat storage water tank, so that an insulating layer needs to be additionally arranged outside to reduce heat loss, and meanwhile, the volume of the water tank needs to meet the requirements of a related heating engineering manual on heat storage equipment.
Further as an improvement of the technical scheme of the invention, the solar heat collector is a flat plate type solar heat collector.
Further as the improvement of the technical scheme of the invention, the compressor needs to operate efficiently and stably in a low-temperature environment, so that the compressor with the functions of air supply and enthalpy increase is adopted.
Further as an improvement of the technical scheme of the invention, the heat exchanger is a coil type heat exchanger.
As a further improvement of the technical scheme of the invention, a filter is arranged on a refrigerant transmission pipeline at the outlet of the heat exchanger and used for filtering impurities in the refrigerant.
As a further improvement of the technical scheme of the invention, a gas-liquid separator is arranged on a refrigerant transmission pipeline at the inlet of the compressor, so that the liquid of the refrigerant is prevented from entering a cylinder of the compressor to cause liquid impact on the compressor, and further the compressor is prevented from being damaged.
Further as an improvement of the technical scheme of the invention, the evaporator adopts a finned heat exchanger.
Is applied to heating in high altitude, such as 4000m, and severe cold areas (the temperature is minus 10 ℃).
The invention has the beneficial effects that: by providing the solar energy-air source heat pump combined heating system, the heating problem of high altitude and severe cold areas is solved. Meanwhile, multiple energy sources are utilized for heating, the requirements of energy conservation, environmental protection and economy are met, different heating modes can be selected according to different weather conditions, the whole system is simple in structure, and the heating effect is good.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure: 1-solar heat collector, 2-first water pump, 3-water tank, 4-heat exchanger, 5-compressor, 6-gas-liquid separator, 7-evaporator, 8-expansion valve, 9-filter, 10-refrigerant channel, 11-water inlet pipe, 12-water return pipe, 13-heat dissipation equipment, 14-second water pump and 15-third water pump.
Detailed Description
The invention will be further explained with reference to the drawings.
Referring to fig. 1, the present invention describes a solar-air source heat pump combined heating system which can be widely used in high altitude, severe cold areas. The invention comprises 1-solar heat collector, 2-first water pump, 3-water tank, 4-heat exchanger, 5-compressor, 6-gas-liquid separation, 7-evaporator, 8-expansion valve, 9-filter, 10-refrigerant channel, 11-water inlet pipe, 12-water return pipe, and 13-heat dissipation equipment. Wherein, the hot water generated in the solar heat collector 1 is stored and stored by the water tank 3; the evaporator 7, the gas-liquid separator 6, the expansion valve 8, the compressor 5, the heat exchanger 4, the filter 9 and the expansion valve 8 are sequentially connected through a refrigerant channel 10 to form a complete loop, and hot water is heated by the heat exchanger 4 and conveyed to the water tank 3 for storage and heat storage. Hot water in the water tank 3 enters the heat dissipation device 13 through the water inlet pipe 11 to supply heat for a user, and then returns to the water tank 3 through the water return pipe 12, and enters the next working cycle again through the water pump 2.
The specific working mode of the invention is as follows:
the solar energy air source heat pump combined heating system mainly comprises two parts: a solar heating device and an air source heat pump heating device.
When the illumination is sufficient in the daytime, the solar heating device can sufficiently bear the heating requirement of a user, and at the moment, the air source heat pump heating loop is in a closed state.
Solar heating system: the solar water heater comprises a solar heat collector 1, a water pump 2, a water tank 3 and the like. The hot water in the solar heat collector 1 is heated to 65 ℃ by absorbing solar energy and is conveyed to the water tank 3 for storage and heat accumulation. The hot water in the water tank 3 enters the heat dissipation device 13 through the water inlet pipe 11 to supply heat for the user, the circulating water with lower temperature after heat dissipation is pressurized by the second water pump 14 and then returns to the water tank 3 through the water return pipe 12, and the circulating water returns to the solar heat collector 1 through the first water pump 2 to be heated again.
And at night or when the illumination is insufficient, starting the air source heat pump heating device to heat the user.
Air source heat pump heating system: the system comprises a heat exchanger 4, a compressor 5, a gas-liquid separator 6, an evaporator 7, an expansion valve 8, a filter 9, a refrigerant channel 10 and the like. The evaporator 7 absorbs heat from the air, and the refrigerant absorbs heat and changes phase to become a low-temperature and low-pressure gaseous refrigerant, which passes through the gas-liquid separator 6 and enters the compressor 5 through the refrigerant passage 10. After being compressed by the compressor 5, the low-temperature and low-pressure gaseous refrigerant is rapidly increased in temperature and pressure, is changed into a high-temperature and high-pressure gaseous refrigerant, is sent into the heat exchanger 4 through the refrigerant channel 10 to exchange heat with circulating water in the water tank 3, and is increased in temperature to 65 ℃. Hot water in the water tank enters the heat dissipation device 13 through the water inlet pipe 11 to supply heat for a user, and circulating water with lower temperature after heat dissipation is pressurized through the water pump 14 and then returns to the water tank 3 through the water return pipe 12 to be heated again. The high-temperature high-pressure gaseous refrigerant is changed into a low-temperature high-pressure liquid refrigerant after releasing heat through the heat exchanger 4, impurities in the refrigerant are filtered through the filter 9, and then the refrigerant enters the expansion valve 8 through the refrigerant channel 10. The low-temperature high-pressure liquid refrigerant is throttled and depressurized by the expansion valve 8, then is changed into a low-temperature low-pressure gas-liquid mixed refrigerant, enters the evaporator 7, absorbs heat to change into a low-temperature low-pressure gas refrigerant, passes through the gas-liquid separator 6 again, enters the compressor 5, and continuously performs the working cycle of evaporation, compression, condensation and throttling.
The flat plate type solar heat collector is selected, the structure is simple, the installation is not limited, the cost is low, and meanwhile, the safety and the reliability of the solar heating device are ensured.
The air source heat pump heating device can normally operate under the condition of ultralow temperature by selecting the compressor with the functions of air supply and enthalpy increase.
The water tank is a heat storage water tank, the heat insulation layer is required to be additionally arranged outside the water tank to reduce heat loss, and meanwhile, in order to meet the heating requirement of a user, the volume of the water tank is larger as much as possible on the premise that the requirements on the regulations and construction conditions of heat storage equipment in a related heating engineering manual are met.
Naturally, the above description is only intended to illustrate the technical solution of the present invention, and not to limit it, and those skilled in the art can still make improvements and modifications to the above technical solution, provided that the essence of the corresponding technical solution does not depart from the scope of the present invention as defined in the appended claims.
Claims (8)
1. A solar energy air source heat pump combined heating system is characterized by comprising: solar collector (1), first water pump (2), water tank (3), heat exchanger (4), compressor (5), vapour and liquid separator (6), evaporimeter (7), expansion valve (8), filter (9), refrigerant passageway (10), inlet tube (11), wet return (12), heat-radiating equipment (13), second water pump (14), third water pump (15), its characterized in that: wherein, hot water generated in the solar heat collector (1) is connected with the water tank (3) through a pipeline, and the water tank (3) is connected with the solar heat collector (1) through the first water pump (2) to form a loop; the evaporator (7), the gas-liquid separator (6), the compressor (5), the heat exchanger (4), the filter (9), the expansion valve (8) and the evaporator (7) are sequentially connected through a refrigerant channel (10) to form a complete air source heat pump heating loop; hot water generated in the heat exchanger (4) is sent into the water tank (3) through a hot water outlet by a third water pump (15), and meanwhile, the water tank (3) is also connected with a hot water inlet of the heat exchanger (4) to form a circulation loop; hot water in the water tank (3) enters the heat dissipation equipment (13) through the water inlet pipe (11) for heating of a user, and then returns to the water tank (3) through the water return pipe (12) and the second water pump (14).
2. The solar-air source heat pump combined heating system as claimed in claim 1, wherein the circulating refrigerant adopted by the air source heat pump heating loop is novel pollution-free refrigerant R-134 a.
3. The combined heating system of claim 1, wherein the water tank is a heat storage water tank, and an insulation layer is added outside to reduce heat loss.
4. The combined solar-air source heat pump heating system as claimed in claim 1, wherein the solar heat collector is a flat plate solar heat collector.
5. The combined solar-air source heat pump heating system as recited in claim 1, wherein said compressor is capable of operating stably and efficiently in low temperature environment, and a compressor with air-supplying and enthalpy-increasing functions is used.
6. A solar-air source heat pump combined heating system as claimed in claim 1, wherein the heat exchanger is a coil heat exchanger.
7. A solar-air source heat pump combined heating system as claimed in claim 1, wherein the evaporator is a finned heat exchanger.
8. The working method of the solar-air source heat pump combined heating system as set forth in claim 1, wherein:
when the illumination is sufficient in the daytime, the solar heating device sufficiently bears the heating requirement of a user, and at the moment, the air source heat pump heating loop is in a closed state;
hot water in the solar heat collector (1) is heated by absorbing solar energy and is conveyed into the water tank (3) for storage and heat storage; hot water in the water tank (3) enters the heat dissipation equipment (13) through the water inlet pipe (11) to supply heat for users, circulating water with lower temperature after heat dissipation is pressurized through the second water pump (14), returns to the water tank (3) through the water return pipe (12), and returns to the solar heat collector (1) through the first water pump (2) to be heated again;
at night or when the illumination is insufficient, starting an air source heat pump heating device to heat a user;
at the moment, the evaporator (7) absorbs heat in air, the refrigerant absorbs heat and undergoes phase change to become a low-temperature low-pressure gaseous refrigerant, the gaseous refrigerant passes through the gas-liquid separator (6), enters the compressor (5) through the refrigerant channel (10), is compressed by the compressor (5), rapidly rises in temperature and pressure and becomes a high-temperature high-pressure gaseous refrigerant, the gaseous refrigerant is sent into the heat exchanger (4) through the refrigerant channel (10) to exchange heat with circulating water in the water tank (3) so as to rise the temperature of the gaseous refrigerant, hot water in the water tank enters the heat dissipation equipment (13) through the water inlet pipe (11) to supply heat for users, the circulating water with lower temperature after heat dissipation is pressurized by the second water pump (14) and then returns to the water tank (3) through the water return pipe (12; the high-temperature high-pressure gaseous refrigerant is changed into a low-temperature high-pressure liquid refrigerant after releasing heat through the heat exchanger (4), and enters the expansion valve (8) through the refrigerant channel (10) after impurities in the refrigerant are filtered through the filter (9); the low-temperature high-pressure liquid refrigerant is throttled and depressurized by an expansion valve (8), then is changed into a low-temperature low-pressure gas-liquid mixed refrigerant, enters an evaporator (7), absorbs heat to change into a low-temperature low-pressure gas refrigerant, and then enters a compressor (5) through a gas-liquid separator (6) again to continuously perform the working cycle of evaporation, compression, condensation and throttling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011074660.6A CN112161313A (en) | 2020-10-09 | 2020-10-09 | Solar energy and air source heat pump combined heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011074660.6A CN112161313A (en) | 2020-10-09 | 2020-10-09 | Solar energy and air source heat pump combined heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112161313A true CN112161313A (en) | 2021-01-01 |
Family
ID=73866983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011074660.6A Withdrawn CN112161313A (en) | 2020-10-09 | 2020-10-09 | Solar energy and air source heat pump combined heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112161313A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112856550A (en) * | 2021-01-08 | 2021-05-28 | 大连民族大学 | Multi-heat-pump heat-increasing heating system based on waste heat recovery and waste heat recovery heating power generation system |
| CN115247909A (en) * | 2022-01-20 | 2022-10-28 | 衢州学院 | Solar heat pump equipment capable of adaptively adjusting working mode |
-
2020
- 2020-10-09 CN CN202011074660.6A patent/CN112161313A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112856550A (en) * | 2021-01-08 | 2021-05-28 | 大连民族大学 | Multi-heat-pump heat-increasing heating system based on waste heat recovery and waste heat recovery heating power generation system |
| CN115247909A (en) * | 2022-01-20 | 2022-10-28 | 衢州学院 | Solar heat pump equipment capable of adaptively adjusting working mode |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1235007C (en) | Unit solar energy heat pump air conditioner and hot water system | |
| CN201885478U (en) | Low temperature type air source heat pump unit | |
| CN102645055B (en) | Adaptively-matched solar auxiliary air source heat pump device | |
| CN203413824U (en) | Bypass-defrosting enhanced vapor injection type heat pump hot water machine set with low-temperature air source | |
| CN101571330B (en) | Multifunctional frost-free solar-assisted heat pump system | |
| CN103423917B (en) | Air-source central air-conditioning hot water triple-generation heat pump unit | |
| CN107388620A (en) | A kind of complex type solar lithium bromide absorption type air conditioner system | |
| CN101514855A (en) | Heat recovery heat pump air conditioner water chilling unit | |
| CN110030762A (en) | Solar energy-air source couples heat source Multifunctional heat pump system | |
| CN112161313A (en) | Solar energy and air source heat pump combined heating system | |
| CN111780303B (en) | Efficient heat source tower heat pump system for southern areas | |
| CN208720537U (en) | A kind of superposition type solar water unit | |
| WO2016086564A1 (en) | Solar heat pump heating system with self-driving separated heat pipe energy storage device, and control method therefor | |
| CN101290176B (en) | Heat reclamation -type solar energy jetting electric compression heat pump air-conditioning unit | |
| CN201007231Y (en) | Mine total energy approach device of coal mine mash gas engines | |
| CN111928389B (en) | Efficient cold and heat supply system based on combined operation of heat source tower and ice cold accumulation | |
| CN201508076U (en) | Air source low-temperature heat pump unit of railway vehicle | |
| CN106839217B (en) | Combined heat pump air conditioning system capable of independently operating in de-electrification mode and control method thereof | |
| CN102767921A (en) | Double-way pre-cooling efficient heat pump device and control method thereof | |
| CN202018156U (en) | Energy-saving heat-pump hot water air conditioner | |
| CN207751180U (en) | A kind of cascade refrigeration defrosting water heater | |
| CN216924818U (en) | Refrigeration and heating integrated system based on waste heat recovery | |
| CN211625785U (en) | Evaporative cooling type composite air conditioning system | |
| CN210801383U (en) | Solar heat pump energy storage heating system in alpine region | |
| CN201242314Y (en) | Heat reclamation type solar injection electric compression heat pump air-conditioning unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210101 |