CN110966648A - Hot water supply system combining solar energy and air source heat pump - Google Patents
Hot water supply system combining solar energy and air source heat pump Download PDFInfo
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- CN110966648A CN110966648A CN201911277682.XA CN201911277682A CN110966648A CN 110966648 A CN110966648 A CN 110966648A CN 201911277682 A CN201911277682 A CN 201911277682A CN 110966648 A CN110966648 A CN 110966648A
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- 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
- F24D17/00—Domestic hot-water supply systems
- F24D17/02—Domestic hot-water supply systems using heat pumps
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- 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
- F24D17/00—Domestic hot-water supply systems
- F24D17/0015—Domestic hot-water supply systems using solar energy
- F24D17/0021—Domestic hot-water supply systems using solar energy with accumulation of the heated water
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- 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
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
- F24D19/106—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water the system uses a heat pump and solar energy
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
- F24S20/40—Solar heat collectors combined with other heat sources, e.g. using electrical heating or heat from ambient air
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- 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
- Y02B10/20—Solar thermal
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- 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
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention relates to a solar energy and air source heat pump combined hot water supply system, which belongs to the technical field of energy-saving technology, and is characterized in that a solar energy and air source heat pump heating system is formed by arranging a first water tank, a second water tank, a solar heat collector and an air source heat pump, and is matched with sensor technologies such as a temperature sensor and a pressure sensor.
Description
Technical Field
The invention relates to the technical field of energy-saving technology, in particular to a hot water supply system combining solar energy and an air source heat pump.
Background
At present, China mainly provides hot water for places such as commercial buildings in the forms of coal, fuel oil, gas, electric boilers and the like, and mainly adopts the forms of electric water heaters, gas water heaters, solar water heaters and the like to provide hot water for places such as civil buildings and the like. The conventional solar water heater is easily influenced by weather and cannot operate all weather, and when the solar radiation degree is insufficient or the weather is rainy, other auxiliary heat sources need to be started for heating, so that the hot water supply is met. The traditional auxiliary heat source generally adopts an electric boiler, and although the electric boiler has high heat efficiency and is relatively clean, the energy consumption is serious and the energy-saving requirement is not met.
The present invention has been made based on this.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a hot water supply system combining solar energy and an air source heat pump, which can realize all-weather heat supply of users, and is energy-saving and environment-friendly.
The above object of the present invention is achieved by the following technical solutions: a hot water supply system combining solar energy and an air source heat pump comprises a first water tank, a second water tank, a solar heat collector and an air source heat pump, wherein the first water tank and the second water tank are both connected with a cold water inlet branch, the cold water inlet branch is connected with a cold water inlet main circuit, a cold water meter 1WM, a pressure sensor 1PS and a temperature sensor 1TS are arranged on the cold water inlet main circuit, an electric valve 1EV is arranged on the cold water inlet branch of the first water tank, and an electric valve 2EV is arranged on the cold water inlet branch of the second water tank; a water level meter, a pressure sensor and a temperature sensor are arranged in the first water tank and the second water tank; the first water tank is communicated with the second water tank through a connecting pipe, and electric valves are arranged on the connecting pipe at the first water tank and the second water tank; a water inlet of the solar thermal collector is respectively connected to the first water tank and the second water tank through a thermal collector water inlet pipeline connected with the connecting pipe, a temperature sensor 6TS, an electric valve 8EV and a first circulating pump are sequentially arranged from the water inlet of the solar thermal collector to the connecting pipe, a water outlet of the solar thermal collector is connected with a heating main pipeline, the heating main pipeline is respectively connected with the first water tank and the second water tank through heating branch pipelines, an electric valve 2EV is arranged on a heating branch pipeline of the first water tank, and an electric valve 5EV is arranged on a heating branch pipeline of the second water tank; the water outlet of the air source heat pump is connected to a heating main pipeline through a heat pump water outlet pipeline, the water inlet of the air source heat pump is connected to the water inlet pipeline of the solar heat collector through a heat pump water inlet pipeline, the connection point is located between the first circulating pump and the electric valve 8EV, and the electric valve 9EV is arranged on the heat pump water inlet pipeline; first water tank and second water tank all are connected with the hot water supply branch road, and hot water supply branch road connects hot water out water main road, is provided with second circulating pump, pressure sensor 2PS and temperature sensor 2TS on the hot water supply main road.
The present invention in a preferred example may be further configured to: the first circulating pump and the second circulating pump are both provided with two.
The present invention in a preferred example may be further configured to: the water changing system comprises a first water tank, a second water tank, a water changing main road, a water quality treatment system, a water outlet of the water quality treatment system, a third circulating pump, an electric valve and a manual valve, wherein the first water tank and the second water tank are both connected with a water changing outlet branch road, the water changing main road is connected with the water changing main road, the water outlet of the water quality treatment system is connected to the first water tank and the second water tank through a water changing inlet branch road, the water changing outlet branch road is provided with the electric valve and the manual valve, the water changing main road is provided with.
The present invention in a preferred example may be further configured to: the first water tank and the second water tank are respectively provided with three layers which are respectively a cold water area, a mixing area and a hot water area, the cold water area, the mixing area and the hot water area are sequentially communicated through an external switching pipe, the switching pipe is respectively provided with an electric valve and a manual valve, the cold water pipeline is connected into the cold water area, the heating pipeline is connected into the mixing area, the hot water pipeline is connected into the hot water area, and the connecting pipe is connected into the hot water area.
The present invention in a preferred example may be further configured to: the cold water area, the mixing area and the hot water area are arranged in the vertical direction.
The present invention in a preferred example may be further configured to: the cold water area, the mixing area and the hot water area are arranged along the horizontal direction.
The present invention in a preferred example may be further configured to: and the first water tank and the second water tank are both provided with an air outlet pipe and an overflow pipe.
The present invention in a preferred example may be further configured to: and water quality sensors are arranged in the first water tank and the second water tank.
In summary, the invention includes at least one of the following beneficial technical effects:
1. the solar energy and air source heat pump technology is organically combined together, all-weather heat supply of a user can be met, and clean energy is utilized by both the solar energy and the air source heat pump technology, so that the energy is saved and the environment is protected; the solar heat supply and the air source heat pump heat supply can be intelligently switched under the assistance of the sensor technology, so that the energy-saving operation is further realized;
2. the water changing system can automatically detect the water quality condition in the water tank, so that water in the water tank can be automatically changed and treated, and can be returned to the water tank for reuse;
3. according to the invention, through the change of the structure of the water tank, energy consumption can be saved, and the heating efficiency of hot water is improved.
Drawings
Fig. 1 is a system schematic diagram of a combined solar energy and air source heat pump hot water supply system according to a first embodiment of the present invention.
Fig. 2 is a system schematic diagram of a water changing system according to a second embodiment of the invention.
Fig. 3 is a schematic structural diagram of a water tank in a third embodiment of the invention.
In the figure, 1, a first water tank; 2. a second water tank; 3. a first cold water inlet branch; 4. a second cold water inlet branch; 5. a cold water inlet main path; 6. a connecting pipe; 7. a solar heat collector; 8. a water inlet pipeline of the heat collector; 9. a first circulation pump; 10. heating the main pipeline; 11. a first heating branch; 12. a second heating branch; 13. a heat pump water outlet pipeline; 14. an air source heat pump; 15. a heat pump water inlet pipeline; 16. a water return branch; 17. a water return main road; 18. an air outlet pipe; 19. an overflow pipe; 20. a hot water supply branch; 21. a hot water main supply path; 22. a second circulation pump; 23. a first water changing and discharging branch; 24. a second water changing and discharging branch; 25. changing water and discharging a main water path; 26. a water quality treatment system; 27. a first water changing and feeding branch; 28. a second water changing and feeding branch; 29. a third circulation pump; 30. a water quality sensor; 31. a cold water region; 32. a mixing zone; 33. a hot water zone; 34. a partition plate; 35. a transfer tube; 36. and a fourth circulation pump.
Detailed Description
The first embodiment is as follows:
the present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the invention discloses a combined solar and air source heat pump hot water supply system, which mainly comprises a first water tank 1, a second water tank 2, a solar heat collector 3 and an air source heat pump 4.
First water tank 1 is connected with first cold water branch 3 of intaking, and second water tank 2 is connected with second cold water branch 4 of intaking, and first cold water branch 1 of intaking and second cold water 4 branches of intaking insert to cold water main road 5 jointly on, and municipal water supply line is connected to cold water main road 5 of intaking. A cold water meter 1WM, a pressure sensor 1PS and a temperature sensor 1TS are respectively arranged at a cold water inlet of the cold water inlet main path 5, the cold water meter 1WM is used for monitoring the water inlet amount of the system, and the pressure sensor 1PS and the temperature sensor 1TS are used for monitoring whether the pressure and the temperature during municipal water inlet can meet the requirements of the whole system or not, so that the water inlet of the system is ensured to be normal; an electric valve 1EV is installed on the first cold water inlet branch 3, and a 4EV is installed on the second cold water inlet branch 4 and is respectively used for controlling cold water supply.
A water level gauge, a pressure sensor 3PS and a temperature sensor 4TS are respectively arranged in the first water tank 1, and a water level gauge, a pressure sensor 4PS and a temperature sensor 5TS are also arranged in the second water tank 2. The water level gauge is used for detecting water level changes, and the water level gauge can use a floating ball type water level gauge.
The first water tank 1 and the second water tank 2 are connected through a connecting pipe 6, so that water flows in the first water tank 1 and the second water tank 2 are communicated. The connection pipe 6 is provided with a manual valve and an electric valve 3EV at the first tank 1, and a manual valve and an electric valve 6EV at the second tank 2.
The solar heat collector 7 is generally a flat plate type solar heat collector, and the arrangement area thereof can be determined according to the building area, for example: the area of the roof is reasonably set. The water inlet of solar collector 7 is connected with collector water inlet pipe 8, and collector water inlet pipe 8 is connected to connecting pipe 6, and the access point is located between the position of motorised valve 3EV and motorised valve 6 EV. A temperature sensor 6TS is arranged at a water inlet of the solar heat collector 7 and used for detecting the temperature of inlet water of solar energy; follow heat collector water intake pipe 8 and go up along the direction of intaking and set gradually first circulating pump 9, motorised valve 8EV and manual valve, first circulating pump 9 can set up to two, and the installation of connecting in parallel, according to the demand of pressure, first circulating pump 9 can use one or two while. A water outlet of the solar thermal collector 7 is connected with a heating main pipeline 10, the heating main pipeline 10 is respectively communicated with the first water tank 1 through a first heating branch 11, the second heating branch 12 is communicated with the second water tank 2, and a temperature sensor 7TS is installed at the water outlet of the solar thermal collector 7 and used for detecting the water outlet temperature of the solar thermal collector 7; the first heating branch 11 is provided with an electric valve 2EV, and the second heating branch 12 is provided with an electric valve 5 EV.
The water outlet of the air source heat pump 14 is connected to the heating main pipeline 10 through a heat pump water outlet pipeline 13, it should be noted that manual valves are arranged on the water inlet and the water outlet of the solar heat collector 7, manual valves are also arranged on the water inlet and the water outlet of the air source heat pump 14, and the solar heat collector 7 and the air source heat pump 14 cannot work simultaneously. Two air source heat pumps 14 can be arranged, and the two air source heat pumps 14 are arranged in parallel. A water inlet of the air source heat pump 14 is connected to a solar heat collector water inlet pipeline 15 through a heat pump water inlet pipeline 15, and the connected position of the air source heat pump is positioned between the first circulating pump 9 and the electric valve 8 EV; an electric valve 9EV is arranged on the heat pump water inlet pipeline 15.
In addition, the first water tank 1 and the second water tank 2 are respectively connected with a water return branch 16, the water return branch 16 is connected to a water return main path 17, the water return branch 16 is respectively provided with a manual valve, the water return main path 17 is provided with an electric valve 7EV and a temperature sensor 3TS, and the temperature sensor 3TS is used for detecting the water return temperature, so that the water return can be conveniently opened or closed according to the temperature condition.
The first water tank 1 and the second water tank 2 are provided with an air outlet pipe 18 and an overflow pipe 19 for discharging air and relieving the pressure of the water tanks, and the overflow pipe 19 is used for overflowing water in the water tanks.
First water tank 1 and second water tank 2 all are connected with hot water supply branch 20, hot water supply branch 20 inserts hot water supply main road 21 jointly, be provided with manual valve on the hot water supply branch 20 respectively, second circulating pump 22 has set gradually according to the hot water supply direction on the hot water supply main road 21, pressure sensor 2PS and temperature sensor 2TS, second circulating pump 22 can set up to two, the parallel connection installation, according to the demand of pressure, second circulating pump 22 can use one or two simultaneously.
It should be noted that the first water tank 1 and the second water tank 2 according to the embodiment of the present invention may be mutually standby, that is, one is a finished water tank (constant temperature water tank), and the other is a heating water tank, and the main/standby switching between the two is realized by opening and closing each electric valve and each manual valve.
For a clearer understanding of the solar and air source heat pump hot water system according to the first embodiment of the present invention, the following describes the working principle in detail:
1. and (3) supplementing water by cold water: when the water level is lower than the lower limit value set by the liquid level in the water tank, the electric valve 1EV or 4EV is opened, when the water level is higher than the upper limit value set by the liquid level in the water tank, the electric valve 1EV or 4EV is closed, when the water level is lower than L0, all circulating pumps are closed, and the unit is in a locking state.
2. Solar heating cycle: when the difference between the temperature of the top of the heat collector and the temperature of the water tank is 7TS-5TS & gt 7 ℃ (adjustable), the solar heat collector 7 is used for heating, the electric valve 8EV is opened, the electric valve 9EV is closed, the electric valve 3EV, the electric valve 2EV or the electric valve 6EV is opened, the circulating pump is started by the electric valve 5EV to heat the first water tank (1 TK) or the second water tank (2 TK), and when the difference between the temperature of the top of the heat collector and the temperature of the water tank is 7TS-5TS & lt 3 ℃ (adjustable), the circulating.
3. Heating by an air source heat pump: the air source heat pump 14 is started when the heating device is insufficient in solar light, so that solar energy can be utilized to the maximum extent, the consumption of electric energy is reduced, when the solar energy heating is stopped, the water temperature of the first water tank 1 or the second water tank 2 is 4TS or 5TS <50 ℃, the electric valves 2EV, 3EV or 5EV, 6EV and 9EV are started, the circulating pump is started, the first water tank 1 or the second water tank 2 is heated, and the air source heat pump unit is used for heating; when the temperature of 4TS and 5TS reaches 55 ℃, 3EV and 6EV are closed, and the circulating pump is stopped.
4. Water return control: in the water supply period, when the constant-pressure variable-frequency water outlet pump is started, the recovery electric valve 7EV is started when the temperature of 3TS is lower than 40 ℃ (can be set), and the recovery electric valve 7EV is closed when the temperature of 3TS is higher than 45 ℃.
5. And (3) a normal operation mode: the first water tank 1 is used as a finished product water tank, the return water manual valve is normally closed, the water outlet manual valve is normally closed, the second water tank 2 is used as a heating water tank, the return water manual valve is half-opened, and the water outlet manual valve is normally opened. When cold water is supplemented, the electric valve 4EV is closed, the electric valve 1EV is opened, the cold water is only supplemented into the first water tank 1, and the return water is only returned into the second water tank 2, so that the water temperature of the first water tank 1 is kept above 50 ℃. And when the water level of the second water tank 2 is lower than 70%, opening 3EV and 5EV, closing 2EV, and if the heating circulation is in a stop state, starting the circulating pump to supplement the hot water in the first water tank 1 into the second water tank 2. And when the water level of the 2TK is higher than 90%, the original running state is recovered.
Example two:
referring to fig. 2, the difference from the first embodiment is: the hot water supply system combining the solar energy and the air source heat pump also comprises a first water changing and discharging branch 23 connected with the first water tank 1 and a second water changing and discharging branch 24 connected with the second water tank 2, the first water changing and discharging branch 23 and the second water changing and discharging branch 24 are both connected to a water changing and discharging main line 25, the water changing and discharging main line 25 is connected with a water quality treatment system 26 along the water discharging direction, the water outlet of the water quality treatment system 26 is connected to the first water tank 1 through a first water changing and charging branch 27 and is connected to the second water tank 2 through a second water changing and charging branch 28, the first water changing and discharging branch 23 is provided with an electric valve 10EV and a manual valve, the second water changing and discharging branch 24 is provided with an electric valve 11EV and a manual valve, the first water changing and charging branch 27 is provided with an electric valve 12EV and a manual valve, and the second water changing and charging branch 28 is provided with an electric valve 13EV and a manual valve; the water changing and discharging main line 25 is provided with two third circulating pumps 29, the three circulating pumps 29 can be installed in parallel, and one or two third circulating pumps 29 can be used simultaneously according to the pressure requirement. In addition, water quality sensors 30 are provided in both the first water tank 1 and the second water tank 2.
The water quality sensor 30 can detect the water in the water tank, and when the water quality detection result is not in accordance with the water quality detection result, the system can open the 10EV and the manual valve, so that the water in the first water tank 1 enters the water quality treatment system 26 for filtering and disinfection, and returns to the first water tank 1 through the opened 12EV and the manual valve; the same applies to the water in the second tank 2.
The embodiment has increased the system of changing water on the basis of embodiment one, generally can detect quality of water at night to change water, guaranteed that the quality of water in first water tank 1 and the second water tank 2 accords with the operation standard, independent water changing pipeline can guarantee that the water in each water tank still gets back to the same water tank after changing water and handling and continues to use, and safety, energy-conserving effect are better.
Example three:
referring to fig. 3, the difference from the second embodiment is that three layers are arranged in the first water tank 1 and the second water tank 2, namely a cold water zone 31, a mixing zone 32 and a hot water zone 33, the cold water zone 31, the mixing zone 32 and the hot water zone 33 are separated by a partition plate 34, and the cold water zone 31 and the mixing zone 32, and the mixing zone 32 and the hot water zone 33 are connected through an adapter tube 35 arranged outside the water tanks. An electric valve 14EV and a manual valve are mounted on a switching pipe 35 between the cold water area 31 and the mixing area 32, an electric valve 15EV and a manual valve are mounted on a switching pipe 35 between the mixing area 32 and the hot water area 33, the first cold water inlet branch 3 and the second cold water inlet branch 4 are connected into the cold water area 31, the heating main pipeline 10 is connected into the mixing area 32 and used for mixing and heating cold water, and the connecting pipe 35 is connected into the hot water area 33 and used for realizing hot water transfer of the first water tank 1 and the second water tank 2; a fourth circulation pump 36 is mounted on each of the two adapter tubes 35 for effecting water flow communication between adjacent zones.
In one example, the first and second water tanks 1 and 2 are vertical water tanks, and the cold water zone 31, the mixing zone 32, and the hot water zone 33 inside the first and second water tanks 1 and 2 are arranged in a vertical direction.
In another example, the first and second water tanks 1 and 2 are horizontal water tanks, and the cold water zone 31, the mixing zone 32, and the hot water zone 33 inside the first and second water tanks 1 and 2 are arranged in a horizontal direction.
In actual work, cold water is supplemented to enter the cold water area 31, water in the mixing area 32 is circularly heated, and water which is circularly heated and meets the temperature enters the hot water area 33; when the level of hot water in the hot water zone 33 is lower than a preset value, the water heated in the mixing zone 32 may be circulated into the hot water zone 33 to be supplied by opening the electric valve 15EV and the manual valve, and the cold water in the cold water zone 31 may be supplied into the mixing zone 32 by opening the electric valve 14EV and the manual valve according to the water level change in the mixing zone 32.
In such a way, all water in the whole water tank is not required to be heated, energy consumption is reduced, meanwhile, the heating efficiency of hot water can be accelerated, and the instant heating is achieved when water is used by a user.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. A hot water supply system combining solar energy and an air source heat pump is characterized by comprising a first water tank (1), a second water tank (2), a solar heat collector (7) and an air source heat pump (14), wherein the first water tank (1) and the second water tank (2) are both connected with cold water inlet branches, the cold water inlet branches are connected with a cold water inlet main circuit (5), a cold water meter 1WM, a pressure sensor 1PS and a temperature sensor 1TS are arranged on the cold water inlet main circuit (5), an electric valve 1EV is arranged on the cold water inlet branch of the first water tank (1), and an electric valve 2EV is arranged on the cold water inlet branch of the second water tank (2); a water level meter, a pressure sensor and a temperature sensor are arranged in the first water tank (1) and the second water tank (2); the first water tank (1) is communicated with the second water tank (2) through a connecting pipe (6), and electric valves are arranged on the connecting pipe (6) at the first water tank (1) and the second water tank (2); a water inlet of a solar heat collector (7) is respectively connected to a first water tank (1) and a second water tank (2) through a heat collector water inlet pipeline (8) connected with a connecting pipe (6), a temperature sensor 6TS, an electric valve 8EV and a first circulating pump (9) are sequentially arranged from the water inlet of the solar heat collector (7) to the connecting pipe (6), a water outlet of the solar heat collector (7) is connected with a heating main pipeline (10), the heating main pipeline (10) is respectively connected with the first water tank (1) and the second water tank (2) through heating branch pipelines, an electric valve 2EV is arranged on a heating branch pipeline of the first water tank (1), and an electric valve 5EV is arranged on a heating branch pipeline of the second water tank (2); a water outlet of the air source heat pump (14) is connected to a heating main pipeline (10) through a heat pump water outlet pipeline (13), a water inlet of the air source heat pump (14) is connected to a water inlet pipeline of the solar heat collector (7) through a heat pump water inlet pipeline (15), a connection point is located between the first circulating pump (9) and the electric valve 8EV, and the electric valve 9EV is arranged on the heat pump water inlet pipeline (15); first water tank (1) and second water tank (2) all are connected with hot water supply branch road (20), and hot water supply branch road (21) is connected in hot water supply branch road (20), is provided with second circulating pump (22), pressure sensor 2PS and temperature sensor 2TS on hot water supply main road (21).
2. A combined solar and air source heat pump hot water supply system according to claim 1, characterized in that two are provided for each of the first circulation pump (9) and the second circulation pump (22).
3. The combined hot water supply system of the solar energy and air source heat pump as claimed in claim 1, wherein the first water tank (1) and the second water tank (2) are both connected with a water changing outlet branch, the water changing branch is connected with a water changing outlet main path (25), the water changing outlet main path (25) is connected with a water quality treatment system (26), a water outlet of the water quality treatment system (26) is connected to the first water tank (1) and the second water tank (2) through a water changing inlet branch respectively, an electric valve and a manual valve are arranged on the water changing outlet branch, a third circulating pump (29) is arranged on the water changing outlet main path (25), and an electric valve and a manual valve are arranged on the water changing inlet branch respectively.
4. The combined solar and air source heat pump hot water supply system according to claim 1, wherein the first water tank (1) and the second water tank (2) are provided with three layers, namely a cold water zone (31), a mixing zone (32) and a hot water zone (33), the cold water zone (31), the mixing zone (32) and the hot water zone (33) are sequentially communicated through an external adapter pipe (35), the adapter pipe (35) is respectively provided with an electric valve and a manual valve, the cold water pipeline is connected into the cold water zone (31), the heating pipeline is connected into the mixing zone (32), the hot water pipeline is connected into the hot water zone (33), and the connecting pipe (6) is connected into the hot water zone (33).
5. A combined solar and air source heat pump hot water supply system according to claim 4, characterized in that the cold water zone (31), the mixing zone (32) and the hot water zone (33) are arranged in a vertical direction.
6. A combined solar and air source heat pump hot water supply system according to claim 4, characterized in that the cold water zone (31), the mixing zone (32) and the hot water zone (33) are arranged horizontally.
7. A combined solar and air source heat pump hot water supply system according to claim 1, characterized in that both the first tank (1) and the second tank (2) are provided with an air outlet duct (18) and an overflow duct (19).
8. A combined solar and air source heat pump hot water supply system according to claim 1, characterized in that water quality sensors (30) are provided in the first (1) and second (2) water tanks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911277682.XA CN110966648A (en) | 2019-12-11 | 2019-12-11 | Hot water supply system combining solar energy and air source heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911277682.XA CN110966648A (en) | 2019-12-11 | 2019-12-11 | Hot water supply system combining solar energy and air source heat pump |
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Citations (5)
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|---|---|---|---|---|
| JP2005134077A (en) * | 2003-10-31 | 2005-05-26 | Denso Corp | Hot water storage type water heater |
| CN201412910Y (en) * | 2009-05-15 | 2010-02-24 | 昆明民本科技有限公司 | Hot water device taking air source heat pump and solar energy as heat sources |
| CN201811343U (en) * | 2010-09-08 | 2011-04-27 | 深圳市嘉普通太阳能有限公司 | Solar energy priority hot water supply system |
| CN202630225U (en) * | 2012-06-07 | 2012-12-26 | 王洪彬 | Solar and heat-pump combined hot water system |
| CN204555323U (en) * | 2015-01-21 | 2015-08-12 | 皆爱西（上海）节能环保工程股份有限公司 | A kind of heating water tank for waste heat recovery |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005134077A (en) * | 2003-10-31 | 2005-05-26 | Denso Corp | Hot water storage type water heater |
| CN201412910Y (en) * | 2009-05-15 | 2010-02-24 | 昆明民本科技有限公司 | Hot water device taking air source heat pump and solar energy as heat sources |
| CN201811343U (en) * | 2010-09-08 | 2011-04-27 | 深圳市嘉普通太阳能有限公司 | Solar energy priority hot water supply system |
| CN202630225U (en) * | 2012-06-07 | 2012-12-26 | 王洪彬 | Solar and heat-pump combined hot water system |
| CN204555323U (en) * | 2015-01-21 | 2015-08-12 | 皆爱西（上海）节能环保工程股份有限公司 | A kind of heating water tank for waste heat recovery |
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