CN111023228A - Wind-solar complementary clean heating system integrating molten salt heat storage and efficient air source heat pump - Google Patents
Wind-solar complementary clean heating system integrating molten salt heat storage and efficient air source heat pump Download PDFInfo
- Publication number
- CN111023228A CN111023228A CN201911334857.6A CN201911334857A CN111023228A CN 111023228 A CN111023228 A CN 111023228A CN 201911334857 A CN201911334857 A CN 201911334857A CN 111023228 A CN111023228 A CN 111023228A
- Authority
- CN
- China
- Prior art keywords
- molten salt
- air source
- heat
- heat pump
- source heat
- 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.)
- Granted
Links
- 150000003839 salts Chemical class 0.000 title claims abstract description 138
- 238000010438 heat treatment Methods 0.000 title claims abstract description 49
- 238000005338 heat storage Methods 0.000 title claims abstract description 32
- 230000000295 complement effect Effects 0.000 title claims abstract description 8
- 238000010521 absorption reaction Methods 0.000 claims description 39
- 238000005057 refrigeration Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000007613 environmental effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims 1
- 238000004146 energy storage Methods 0.000 abstract description 5
- 238000003912 environmental pollution Methods 0.000 abstract description 5
- 230000001276 controlling effect Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000005622 photoelectricity Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
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
- F24D3/00—Hot-water central heating systems
- F24D3/18—Hot-water central heating systems using heat pumps
-
- 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
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1045—Arrangement or mounting of control or safety devices for water heating systems for central heating the system uses a heat pump and solar energy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S60/00—Arrangements for storing heat collected by solar heat collectors
- F24S60/30—Arrangements for storing heat collected by solar heat collectors storing heat in liquids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
- H02S10/10—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power including a supplementary source of electric power, e.g. hybrid diesel-PV energy systems
- H02S10/12—Hybrid wind-PV energy systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
- F28D2020/0047—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material using molten salts or liquid metals
-
- 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
-
- 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
-
- 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
-
- 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
- Y02E10/50—Photovoltaic [PV] energy
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
-
- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (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
A wind-solar complementary clean heating system integrating molten salt heat storage and a high-efficiency air source heat pump belongs to the field of clean energy utilization. The high-efficiency air source heat pump and the molten salt heat storage system are coupled for heating, so that clean wind and solar energy can be consumed on site, and environmental pollution caused by a conventional heating mode can be reduced. The electric-driven air source heat pump can realize efficient utilization of wind power, and the fused salt energy storage can realize continuous heat supply of fluctuation wind and solar energy. When the solar energy of the wind energy is sufficient, the molten salt is preheated through the solar energy, and the molten salt is further dissolved and heated through the wind power, so that the electric energy and the light energy are converted into heat energy to be stored. When wind energy is insufficient, the heat generated by the air source heat pump is insufficient to heat the circulating backwater to the rated heating temperature, and the circulating backwater can be reheated by regulating and controlling the heat stored in the molten salt heat storage system, so that the heating temperature is guaranteed to meet the rated requirement. The invention can realize the local consumption of wind and solar energy and ensure the continuous and reliable heat supply.
Description
Technical Field
The invention relates to a wind-solar complementary clean heating system integrating molten salt heat storage and a high-efficiency air source heat pump, and belongs to the field of clean energy utilization.
Background
Wind energy and solar energy belong to renewable clean energy, but due to the large volatility, the wind energy and the solar energy cause great difficulty in grid connection of power generation, so that the phenomenon of wind and light abandoning in a large area is caused. In winter, in order to meet the heating demand, heating is mostly performed by adopting modes such as a coal-fired boiler and the like, and the conventional heating modes cause serious environmental pollution. The heating by utilizing wind energy and solar energy is an ideal heating mode, but the heating requirement is continuous, the wind energy and the solar energy have volatility, and the continuous heating cannot be carried out, so that the user experience is poor. The fused salt energy storage has the advantages of large latent heat, high energy storage density, small supercooling degree, uniform and stable heat transfer, good heat transfer performance, higher use temperature, low cost, safety, reliability and the like, thereby being widely used as a heat storage medium. The air source heat pump is an energy-saving device which utilizes high-level energy to enable heat to flow from low-level heat source air to a high-level heat source, and has the advantages of wide application range, no pollution, good safety performance, low operation cost and the like. The combination of the fused salt heat storage and the air source heat pump is expected to realize the high-efficiency absorption of wind and solar energy and realize clean and continuous heating.
Disclosure of Invention
The invention aims to supply heat by using 'wind abandoning and photoelectric' to realize the on-site consumption of clean wind and solar energy, reduce the environmental pollution caused by the conventional heating mode and simultaneously ensure continuous and reliable heating and efficient and comfortable tail end.
The invention relates to a wind-solar complementary clean heating system integrating molten salt heat storage and a high-efficiency air source heat pump, which is characterized by comprising an air source heat pump system and a molten salt heat storage system;
an air source heat pump system: the air source heat pump system is formed by sequentially connecting a compressor (3), a condenser (4), a throttle valve (5), an evaporator (2) and the compressor (3), the compressor (3) is driven to operate by electric energy generated by a wind turbine generator (1) so as to drive the air source heat pump system to heat circulating return water, and a refrigeration working medium circulates in the air source heat pump system;
molten salt heat storage system: the molten salt electric heater (14) is connected and communicated with the high-temperature salt tank (6), the high-temperature salt tank (6) is connected with the absorption type air source heat pump (9) sequentially through the high-temperature molten salt pump (7) and the molten salt valve (8), the absorption type air source heat pump (9) is connected with the low-temperature salt tank (10), the low-temperature salt tank (10) is connected with the three-way valve (12) through the low-temperature molten salt pump (11), one way of the three-way valve (12) is directly connected and communicated with the molten salt electric heater (14), the other way of the three-way valve (12) is connected and communicated with the molten salt electric heater (4) through the solar heat collector (13) to form a molten salt heat storage system, and molten salt is; the electric energy required by the molten salt electric heater (4) comes from a wind turbine generator;
the circulating backwater flows through the condenser (4) and the absorption type air source heat pump (9) and finally reaches a user.
The method for complementary clean heating by adopting the system is characterized in that the electric quantity generated by the wind turbine generator (1) is mainly sent to a compressor (3) in an air source heat pump. When wind power is sufficient, the circulating backwater can be heated to the rated heating temperature by the heat generated by the air source heat pump, and surplus electric energy is provided, so that surplus wind power is led to a molten salt electric heater (14) in the molten salt heat storage system, and the surplus wind power is used for heating molten salt, and then the electric energy is converted into heat energy to be stored. Meanwhile, a solar heat collector (13) and an absorption type air source heat pump (9) are added into the molten salt heat storage system, and the molten salt can be preheated by solar energy of the solar heat collector (13). When the electric quantity generated by the wind turbine generator (1) is insufficient, namely the heat generated by the air source heat pump is insufficient to heat the circulating backwater to the rated heating temperature, the molten salt heat storage system starts to release heat energy to drive the absorption type air source heat pump (9) to work, the circulating backwater is further heated in the absorption type air source heat pump (9) and is sent to a heat user after reaching the rated heating temperature;
when the outside sunshine is sufficient, the low-temperature molten salt pump (11) pumps the molten salt out of the low-temperature salt tank and flows to the solar heat collector (13) through the three-way valve (12), the solar heat collector (13) absorbs optical energy to preheat the molten salt, then the molten salt is sent to the molten salt electric heater (14) to be further dissolved and heated, and finally the molten salt is sent to the high-temperature salt tank (6) to be stored. When no sunlight exists outside, the molten salt is pumped out from the low-temperature salt tank (10), directly flows to the molten salt electric heater (14) through the three-way valve (12) to be dissolved and heated, and finally is sent to the high-temperature salt tank (6) to be stored. The high-temperature molten salt releases heat energy to drive the absorption type air source heat pump (9) to operate, the absorption type air source heat pump (9) absorbs the environmental heat again to heat the circulating backwater together, and the circulating backwater is sent to a heat user after reaching the rated heating temperature. When the external environment temperature is low, the energy efficiency of the absorption type air source heat pump (9) is reduced and the absorption type air source heat pump (9) is difficult to work, and at the moment, the absorption type air source heat pump (9) can be switched to a heat exchanger mode, so that continuous and stable heating is realized.
The wind power allocation and the molten salt heat absorption and release regulation are controlled by a control system, so that the intelligent operation is improved.
Through the coupling of the air source heat pump and the molten salt heat storage system, the on-site wind and light consumption can be realized, and the environmental pollution caused by the conventional heating mode can be reduced. The electric-driven air source heat pump can realize efficient utilization of wind power, and the fused salt energy storage is utilized to stabilize fluctuating wind power and photoelectricity to realize continuous heat supply, so that continuous and reliable heat supply and efficient and comfortable tail end are ensured.
Drawings
FIG. 1 shows a wind-solar hybrid heating system with molten salt heat storage and an air source heat pump
The system comprises a wind turbine generator set 1, an evaporator 2, a compressor 3, a condenser 4, a throttle valve 5, a high-temperature salt tank 6, a high-temperature molten salt pump 7, a molten salt valve 8, an absorption type air source heat pump 9, a low-temperature salt tank 10, a low-temperature molten salt pump 11, a three-way valve 12, a solar heat collector 13 and a molten salt electric heater 14.
Detailed description of the preferred embodiments
The present invention will be further illustrated with reference to the following examples, but the present invention is not limited to the following examples.
The electric quantity generated by the wind turbine generator (1) is mainly sent to a compressor (3) in the air source heat pump. When wind power is sufficient, the circulating backwater can be heated to the rated heating temperature by the heat generated by the air source heat pump, and surplus electric energy is provided, so that surplus wind power is led to a molten salt electric heater (14) in the molten salt heat storage system, and the surplus wind power is used for heating molten salt, and then the electric energy is converted into heat energy to be stored. Meanwhile, a solar heat collector (13) and an absorption type air source heat pump (9) are added into the molten salt heat storage system, and the molten salt can be preheated by solar energy of the solar heat collector (13). When the electric quantity generated by the wind turbine generator (1) is insufficient, namely the heat generated by the air source heat pump is insufficient to heat the circulating backwater to the rated heating temperature, the molten salt heat storage system starts to release heat energy to drive the absorption type air source heat pump (9) to work, the circulating backwater is further heated in the absorption type air source heat pump (9), and the circulating backwater is sent to a heat user after reaching the rated heating temperature.
An air source heat pump system: the electric energy generated by the wind turbine generator (1) drives the compressor (3) to operate so as to drive the air source heat pump to heat and circulate the backwater, and the refrigeration working medium circulates in the compressor (3), the condenser (4), the throttle valve (5) and the evaporator (2).
Molten salt heat storage system: the electric energy required by the molten salt electric heater (4) comes from a wind turbine generator, and a solar heat collector (13) and an absorption type air source heat pump (9) are added into a molten salt heat storage system. When the outside sunshine is sufficient, the low-temperature molten salt pump (11) pumps the molten salt out of the low-temperature salt tank and flows to the solar heat collector (13) through the three-way valve (12), the solar heat collector (13) absorbs optical energy to preheat the molten salt, then the molten salt is sent to the molten salt electric heater (14) to be further dissolved and heated, and finally the molten salt is sent to the high-temperature salt tank (6) to be stored. When no sunlight exists outside, the molten salt is pumped out from the low-temperature salt tank (10), directly flows to the molten salt electric heater (14) through the three-way valve (12) to be dissolved and heated, and finally is sent to the high-temperature salt tank (6) to be stored. The high-temperature molten salt releases heat energy to drive the absorption type air source heat pump (9) to operate, the absorption type air source heat pump (9) absorbs the environmental heat again to heat the circulating backwater together, and the circulating backwater is sent to a heat user after reaching the rated heating temperature. When the external environment temperature is low, the energy efficiency of the absorption type air source heat pump (9) is reduced and the absorption type air source heat pump (9) is difficult to work, and at the moment, the absorption type air source heat pump (9) can be switched to a heat exchanger mode, so that continuous and stable heating is realized.
Example 1:
when wind power is sufficient, the electric quantity generated by the wind turbine generator (1) is larger than that required by the air source heat pump, the wind power drives the compressor (3) to operate to enable the refrigeration working medium to be heated and boosted, then the refrigeration working medium releases heat in the condenser (4) to enable circulating return water to be heated to a rated heating temperature, and the refrigeration working medium completes circulation to the compressor (3) through the throttle valve (5) and the evaporator (2). Surplus wind power is led to a molten salt heat storage system, molten salt is pumped out from a low-temperature salt tank (10) by a low-temperature molten salt pump (11), the low-temperature molten salt passes through a three-way valve (12), when sunlight exists outside, the molten salt flows into a solar heat collector (13) to be preheated, and then flows into a molten salt electric heater (14), when sunlight does not exist outside, the molten salt directly flows into the molten salt electric heater (14) after passing through the three-way valve (12), the molten salt which is completely heated and dissolved by the molten salt electric heater (14) flows into the high-temperature salt tank to be stored, and the heat required by the molten salt electric heater (14) mainly comes from surplus electric quantity generated by a wind turbine generator set (.
Example 2:
when wind power is insufficient, the electric quantity generated by the wind turbine generator (1) is smaller than that required by the air source heat pump, the wind power drives the compressor (3) to work, the refrigerating working medium cannot reach the required temperature and pressure, further, the heat released by the refrigerating working medium in the condenser (4) is insufficient to heat the circulating backwater to the rated heating temperature, the circulating backwater heated by the air source heat pump still needs to be further heated by the molten salt heat storage system, and the electric energy generated by the wind turbine generator (1) is not sent to the molten salt heat storage system any more. High-temperature molten salt stored in the high-temperature salt tank (6) is pumped out by a high-temperature molten salt pump (7) and flows into an absorption type air source heat pump (9) through a molten salt valve (8), the high-temperature molten salt releases heat energy to drive the absorption type air source heat pump (9) to work, the absorption type air source heat pump (9) absorbs ambient heat again, circulating return water from the air source heat pump is heated together, and the circulating return water is heated to a rated heating temperature and then is sent to a heat user. The molten salt after the heat is released by the absorption type air source heat pump (9) is sent to the low-temperature salt tank (10) again to wait for the next cycle heating.
Through the coupling of the fused salt energy storage system and the high-efficiency low-temperature air source heat pump, surplus wind power and surplus electricity are converted into heat energy through photoelectricity to be stored for a long time, and under the condition that the wind power is insufficient, the heat stored in the fused salt is released to heat circulating backwater, so that the continuous and stable heating is ensured. The problem of environmental pollution caused by a conventional heating mode can be reduced, and efficient wind and light consumption and continuous and reliable heating can be guaranteed.
Claims (3)
1. A wind-solar complementary clean heating system integrating molten salt heat storage and a high-efficiency air source heat pump is characterized by comprising an air source heat pump system and a molten salt heat storage system;
an air source heat pump system: the air source heat pump system is formed by sequentially connecting a compressor (3), a condenser (4), a throttle valve (5), an evaporator (2) and the compressor (3), the compressor (3) is driven to operate by electric energy generated by a wind turbine generator (1) so as to drive the air source heat pump system to heat circulating return water, and a refrigeration working medium circulates in the air source heat pump system;
molten salt heat storage system: the molten salt electric heater (14) is connected and communicated with the high-temperature salt tank (6), the high-temperature salt tank (6) is connected with the absorption type air source heat pump (9) sequentially through the high-temperature molten salt pump (7) and the molten salt valve (8), the absorption type air source heat pump (9) is connected with the low-temperature salt tank (10), the low-temperature salt tank (10) is connected with the three-way valve (12) through the low-temperature molten salt pump (11), one way of the three-way valve (12) is directly connected and communicated with the molten salt electric heater (14), the other way of the three-way valve (12) is connected and communicated with the molten salt electric heater (4) through the solar heat collector (13) to form a molten salt heat storage system, and molten salt is; the electric energy required by the molten salt electric heater (4) comes from a wind turbine generator;
the circulating backwater flows through the condenser (4) and the absorption type air source heat pump (9) and finally reaches a user.
2. Method for complementary clean heating with a system according to claim 1, characterized in that the electricity generated by the wind turbine (1) is mainly sent to the compressor (3) in the air source heat pump; when wind power is sufficient, the circulating backwater can be heated to the rated heating temperature by the heat generated by the air source heat pump and surplus electric energy is available, and then the surplus wind power is led to a molten salt electric heater (14) in the molten salt heat storage system, and the surplus wind power is used for heating molten salt so as to convert the electric energy into heat energy for storage; meanwhile, a solar heat collector (13) and an absorption type air source heat pump (9) are added into the molten salt heat storage system, and the solar heat collector (13) can preheat molten salt through solar energy; when the electric quantity generated by the wind turbine generator (1) is insufficient, namely the heat generated by the air source heat pump is insufficient to heat the circulating backwater to the rated heating temperature, the molten salt heat storage system starts to release heat energy to drive the absorption type air source heat pump (9) to work, the circulating backwater is further heated in the absorption type air source heat pump (9) and is sent to a heat user after reaching the rated heating temperature;
when the outside sunshine is sufficient, the low-temperature molten salt pump (11) pumps the molten salt out of the low-temperature salt tank and flows to the solar heat collector (13) through the three-way valve (12), the solar heat collector (13) absorbs optical energy to preheat the molten salt, then the molten salt is sent to the molten salt electric heater (14) to be further dissolved and heated, and finally the molten salt is sent to the high-temperature salt tank (6) to be stored. When no sunlight exists outside, the molten salt is pumped out from the low-temperature salt tank (10), directly flows to the molten salt electric heater (14) through the three-way valve (12) to be dissolved and heated, and finally is sent to the high-temperature salt tank (6) to be stored. The high-temperature molten salt releases heat energy to drive the absorption type air source heat pump (9) to operate, the absorption type air source heat pump (9) absorbs the environmental heat again to heat the circulating backwater together, and the circulating backwater is sent to a heat user after reaching the rated heating temperature; when the external environment temperature is low, the energy efficiency of the absorption type air source heat pump (9) is reduced and the absorption type air source heat pump (9) is difficult to work, and at the moment, the absorption type air source heat pump (9) can be switched to a heat exchanger mode or directly replaced by a heat exchanger, so that continuous and stable heating is realized.
3. The method according to claim 2, wherein the wind power preparation and the molten salt heat absorption and release regulation are controlled by a control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911334857.6A CN111023228B (en) | 2019-12-20 | 2019-12-20 | Wind-solar complementary clean heating system integrating molten salt heat storage and air source heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911334857.6A CN111023228B (en) | 2019-12-20 | 2019-12-20 | Wind-solar complementary clean heating system integrating molten salt heat storage and air source heat pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111023228A true CN111023228A (en) | 2020-04-17 |
| CN111023228B CN111023228B (en) | 2021-03-16 |
Family
ID=70212567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911334857.6A Active CN111023228B (en) | 2019-12-20 | 2019-12-20 | Wind-solar complementary clean heating system integrating molten salt heat storage and air source heat pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111023228B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112880220A (en) * | 2021-01-28 | 2021-06-01 | 北京工业大学 | Cascade heat pump system for wind-solar complementary clean heating |
| CN113154500A (en) * | 2021-03-17 | 2021-07-23 | 华能苏州热电有限责任公司 | Wind energy utilization method and device based on cogeneration coupling molten salt heat storage |
| CN113237133A (en) * | 2021-06-07 | 2021-08-10 | 西安热工研究院有限公司 | Renewable energy clean heating and peak regulation system utilizing high-temperature molten salt heat storage |
| CN113562693A (en) * | 2021-07-20 | 2021-10-29 | 杭州制氧机集团股份有限公司 | Hydrogen production device and method for high-temperature molten salt energy storage and steam thermal decoupling |
| CN114278404A (en) * | 2021-11-15 | 2022-04-05 | 国家能源集团科学技术研究院有限公司 | Regional wind-powered electricity generation consumption of high wind-powered electricity generation permeability and clean heating system based on energy storage |
| CN115059951A (en) * | 2022-03-11 | 2022-09-16 | 哈尔滨理工大学 | Multifunctional combined cleaning and heating system |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148636A (en) * | 2013-03-28 | 2013-06-12 | 高国利 | Air-powered and solar-powered heat-accumulating heat pump system |
| CN103868389A (en) * | 2014-03-13 | 2014-06-18 | 北京工业大学 | Independent fused salt heat storage power plant |
| CN103953966A (en) * | 2014-05-16 | 2014-07-30 | 中国科学院工程热物理研究所 | High-capacity heat storage system and high-capacity heat storage method for increasing wind energy absorption |
| CN104676972A (en) * | 2015-03-12 | 2015-06-03 | 中国科学院工程热物理研究所 | Soil source-air source wind energy heat pump system and control method thereof |
| CN106090853A (en) * | 2016-06-27 | 2016-11-09 | 杭州锅炉集团股份有限公司 | The fused salt heat reservoir of wind problem is abandoned in a kind of reply |
| CN106322822A (en) * | 2016-10-08 | 2017-01-11 | 国核电力规划设计研究院 | Absorption wind and solar abandoning heating and cooling combined system and method |
| CN106322791A (en) * | 2015-06-30 | 2017-01-11 | 三菱日立电力系统株式会社 | Solar thermal power generation system and solar thermal power generation method |
| KR20170004649A (en) * | 2015-07-03 | 2017-01-11 | 김선철 | Salt and ice production system and method using seawater heat storage tank and heat pump |
| CN207610261U (en) * | 2017-11-27 | 2018-07-13 | 天津锐锟科技有限公司 | The trough-electricity heat storage and heat supply system assisted using air source heat pump |
| CN208330637U (en) * | 2018-06-20 | 2019-01-04 | 山东中信能源联合装备股份有限公司 | The micro- energy net system of intelligence based on fuse salt heat accumulation and compressed-air energy storage |
| CN208475723U (en) * | 2018-07-06 | 2019-02-05 | 山东绿特空调系统有限公司 | A kind of ultra-low temperature air source heat pump unit to be defrosted using molten salt energy-storage |
| CN208566819U (en) * | 2018-07-10 | 2019-03-01 | 百吉瑞（天津）新能源有限公司 | A kind of big temperature difference heat pump molten salt energy-storage heating system |
-
2019
- 2019-12-20 CN CN201911334857.6A patent/CN111023228B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148636A (en) * | 2013-03-28 | 2013-06-12 | 高国利 | Air-powered and solar-powered heat-accumulating heat pump system |
| CN103868389A (en) * | 2014-03-13 | 2014-06-18 | 北京工业大学 | Independent fused salt heat storage power plant |
| CN103953966A (en) * | 2014-05-16 | 2014-07-30 | 中国科学院工程热物理研究所 | High-capacity heat storage system and high-capacity heat storage method for increasing wind energy absorption |
| CN104676972A (en) * | 2015-03-12 | 2015-06-03 | 中国科学院工程热物理研究所 | Soil source-air source wind energy heat pump system and control method thereof |
| CN106322791A (en) * | 2015-06-30 | 2017-01-11 | 三菱日立电力系统株式会社 | Solar thermal power generation system and solar thermal power generation method |
| KR20170004649A (en) * | 2015-07-03 | 2017-01-11 | 김선철 | Salt and ice production system and method using seawater heat storage tank and heat pump |
| CN106090853A (en) * | 2016-06-27 | 2016-11-09 | 杭州锅炉集团股份有限公司 | The fused salt heat reservoir of wind problem is abandoned in a kind of reply |
| CN106322822A (en) * | 2016-10-08 | 2017-01-11 | 国核电力规划设计研究院 | Absorption wind and solar abandoning heating and cooling combined system and method |
| CN207610261U (en) * | 2017-11-27 | 2018-07-13 | 天津锐锟科技有限公司 | The trough-electricity heat storage and heat supply system assisted using air source heat pump |
| CN208330637U (en) * | 2018-06-20 | 2019-01-04 | 山东中信能源联合装备股份有限公司 | The micro- energy net system of intelligence based on fuse salt heat accumulation and compressed-air energy storage |
| CN208475723U (en) * | 2018-07-06 | 2019-02-05 | 山东绿特空调系统有限公司 | A kind of ultra-low temperature air source heat pump unit to be defrosted using molten salt energy-storage |
| CN208566819U (en) * | 2018-07-10 | 2019-03-01 | 百吉瑞（天津）新能源有限公司 | A kind of big temperature difference heat pump molten salt energy-storage heating system |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112880220A (en) * | 2021-01-28 | 2021-06-01 | 北京工业大学 | Cascade heat pump system for wind-solar complementary clean heating |
| CN113154500A (en) * | 2021-03-17 | 2021-07-23 | 华能苏州热电有限责任公司 | Wind energy utilization method and device based on cogeneration coupling molten salt heat storage |
| CN113237133A (en) * | 2021-06-07 | 2021-08-10 | 西安热工研究院有限公司 | Renewable energy clean heating and peak regulation system utilizing high-temperature molten salt heat storage |
| CN113562693A (en) * | 2021-07-20 | 2021-10-29 | 杭州制氧机集团股份有限公司 | Hydrogen production device and method for high-temperature molten salt energy storage and steam thermal decoupling |
| CN114278404A (en) * | 2021-11-15 | 2022-04-05 | 国家能源集团科学技术研究院有限公司 | Regional wind-powered electricity generation consumption of high wind-powered electricity generation permeability and clean heating system based on energy storage |
| CN114278404B (en) * | 2021-11-15 | 2024-01-26 | 国家能源集团科学技术研究院有限公司 | Energy storage-based high-wind-power-permeability regional wind power consumption and clean heating system |
| CN115059951A (en) * | 2022-03-11 | 2022-09-16 | 哈尔滨理工大学 | Multifunctional combined cleaning and heating system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111023228B (en) | 2021-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111023228B (en) | Wind-solar complementary clean heating system integrating molten salt heat storage and air source heat pump | |
| CN104633980B (en) | Solar energy ground can complementary wind energy heat pump system | |
| CN213395553U (en) | Solar phase-change heat storage heat pump heating system | |
| CN202382474U (en) | Solar-energy-and-geothermy-integrated storage, heating and refrigerating system | |
| CN208475685U (en) | A kind of molten salt energy-storage heating system based on solar energy heating | |
| CN213901222U (en) | Photovoltaic and photo-thermal integrated and solar energy composite heat pump heating system | |
| CN112762424B (en) | Solar thermoelectric coupling system based on combination of heat storage and compression heat pump and operation method thereof | |
| CN103277856A (en) | Solar seasonal cold and hot combined air conditioning system | |
| CN110145796A (en) | A kind of micro- energy net of solar energy support | |
| CN110068038A (en) | A kind of solar energy or air energy thermal chp system and its method | |
| CN205717966U (en) | Wind light mutual complementing solar energy heat distribution system | |
| CN109737615B (en) | Small household solar thermoelectric cooling poly-generation system | |
| CN217817509U (en) | Double-heat-pump complementary heat supply system based on solar energy coupling molten salt heat storage | |
| CN103388854B (en) | A kind of hot water supply system of comprehensive energy utilization | |
| CN110081619A (en) | A kind of photovoltaic and photothermal composite air source heat pump system | |
| CN206054204U (en) | A kind of house hydrogen energy source system and the conjuncted machine of the autologous generating heat pump of CETRINE | |
| CN211177500U (en) | Solar energy integration comprehensive utilization system | |
| CN210441316U (en) | Domestic hot water supply system | |
| CN2506938Y (en) | Solar energy intermediate-high temp. heat-collectino absorption type air conditioner system | |
| CN114754428B (en) | Solar photovoltaic photo-thermal multifunctional complementary system assisted by natural gas | |
| CN110567186A (en) | solar energy integration comprehensive utilization system | |
| CN115059951A (en) | Multifunctional combined cleaning and heating system | |
| CN110440334A (en) | A kind of domestic hot-water's feed system | |
| CN110081497A (en) | A kind of control method of heat pump system | |
| CN219318530U (en) | Energy storage system combining PVT (PVT) with heat exchange circulation module |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |