CN108050576A - A kind of solar energy heating system combined across season with short-term heat accumulation and its control method - Google Patents
A kind of solar energy heating system combined across season with short-term heat accumulation and its control method Download PDFInfo
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- CN108050576A CN108050576A CN201810003235.4A CN201810003235A CN108050576A CN 108050576 A CN108050576 A CN 108050576A CN 201810003235 A CN201810003235 A CN 201810003235A CN 108050576 A CN108050576 A CN 108050576A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 159
- 238000009825 accumulation Methods 0.000 title claims abstract description 154
- 238000000034 method Methods 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 248
- 230000005855 radiation Effects 0.000 claims abstract description 63
- 230000005611 electricity Effects 0.000 claims description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
Classifications
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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
- F24D15/00—Other domestic- or space-heating systems
-
- 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
-
- 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
- F24D2200/00—Heat sources or energy sources
- F24D2200/12—Heat pump
-
- 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
- F24D2200/00—Heat sources or energy sources
- F24D2200/14—Solar energy
-
- 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
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/10—Heat storage materials, e.g. phase change materials or static water enclosed in a space
-
- 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
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/20—Heat consumers
- F24D2220/2009—Radiators
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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
-
- 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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
A kind of solar energy heating system combined across season with short-term heat accumulation and its control method, are related to solar thermal utilization and thermmal storage field.Including solar thermal collector, short-term heat accumulation pond, cross-season heat-storing pond, water resource heat pump, plate heat exchanger, heat loss through radiation device, valve, water pump and control system.The short-term heat accumulation pond can provide stable heat source for cross-season heat-storing pond, reduce the loss of heat accumulation water circulating pump frequent start-stop in the prior art, and when water temperature is relatively low in middle and later periods cross-season heat-storing pond of heating, from short-term heat accumulation pond hot terminad heat loss through radiation device is taken to heat.The system adapts to different heat accumulation sump water temperature situations, carries out multiple-working mode, and control method cooperation difference takes hot form, the heating load of heating system is made to be matched with user's calorific requirement.The system energy auto-controll operation while heat user heat demand is met, promotes solar-heating fraction and solar energy utilization ratio, reduces the energy consumption of auxiliary thermal source.
Description
Technical field
The present invention relates to solar thermal utilization and thermmal storage technical field more particularly to one kind across season and short-term heat accumulation knot
The solar energy heating system and its control method of conjunction.
Background technology
Solar energy is a kind of reproducible clean energy resource, if as the heat source of heating system, has significant section
Energy and environmental benefit.But solar energy has season disequilibrium, solar-heating measurer has " winter deficiency, summer are superfluous "
Contradiction, cross-season heat-storing technology by the solar energy that non-heating period is collected store to heating period utilize, above-mentioned contradiction can be alleviated,
Solar insuring rate and annual solar energy composite utilization ratio can be improved again, be to realize that solar energy heating system is lasting, adjustable
One of effective way of operation.
At present, common cross-season heat-storing mode is underground tank heat accumulation in engineering.Generally using solar thermal collector with
Heat accumulation pond is direct-connected or heat exchanger between the form that connects by solar heat supply heat accumulation pond.The thermal-arrest of above-mentioned heat collector outlet
Medium temperature is big by meteorological factor influences such as solar irradiances, and fluctuation is violent.Water temperature in heat accumulation pond is stored up in non-heating period
The hot stage slowly rises, and reaches highest in In The Initial Period Of Heating water temperature, and water temperature constantly reduces after starting heating.Thus two can be caused to ask
Topic：(1) water circulating pump between heat collector and heat accumulation pond is generally controlled using the temperature difference, i.e., exports medium and storage according to heat collector
The temperature signal of hot water pool inner water controls the start and stop of the water pump, since the fluctuation of the above-mentioned temperature difference is violent, causes the water circulating pump
Frequent start-stop, increase loss and the power consumption of water pump；Second is that when the water temperature in later stage heat accumulation pond of heating is relatively low, heat collector is received
The heat of collection is transported in heat accumulation pond, and the water temperature in heat accumulation pond promotes effect unobvious, is directly supplied with solar thermal collector
Heat is compared, and the heat quality that heat accumulation pond is exported to heat user is relatively low, and system energy comprehensive utilization ratio is relatively low.
The content of the invention
In order to which the water circulating pump frequent start-stop between heat collector in the prior art and heat accumulation pond is overcome to increase loss, heating
Later stage heat collector output heat enter heat accumulation pond heating bath water again heat supply reduce heat quality the problems such as, the present invention propose one
Plant the solar energy heating system combined across season with short-term heat accumulation and its control method.
Technical scheme：
A kind of solar energy heating system combined across season with short-term heat accumulation, including solar thermal collector, short-term water storage
Pond, cross-season heat-storing pond, water resource heat pump, heat loss through radiation device, plate heat exchanger, valve and water pump；
The heat loss through radiation device is arranged in user room, to hang canopy formula radiant panel, window following formula radiant panel, metope formula spoke
Penetrate plate, ground type radiant panel, capillary radiation plate etc.；
The solar thermal collector connects short by the first valve sum aggregate thermal cycle water pump successively by pipeline, the port of export
The first heat exchange coil in phase heat accumulation pond, the first heat exchange coil in the direct-connected short-term heat accumulation pond of arrival end form thermal-arrest and follow
Loop back path；
The short-term heat accumulation pond goes out terminal and passes through the second valve and cross-season heat-storing water circulating pump successively by pipeline
Connect the second heat exchange coil in cross-season heat-storing pond, the second heat exchange coil in the direct-connected cross-season heat-storing pond in circuit end,
Form cross-season heat-storing pond heat accumulation circulation loop；
The heat source side of the plate heat exchanger is by pipeline, and one end is successively by plate heat exchange source water circulating pump and the 3rd
Valve connection cross-season heat-storing pond, the other end form plate heat exchanger by the 4th valve connection cross-season heat-storing pond
First heat source side loop；The user side of plate heat exchanger passes through heating system water circulating pump and the tenth successively by pipeline, one end
Valve connects heat loss through radiation device, and the other end is directly connected to heat loss through radiation device, and the first user side for forming plate heat exchanger is returned
Road, the first heat source side loop and first user's side loop collectively form cross-season heat-storing pond plate heat exchanger heating loop；
The cross-season heat-storing pond user side is cycled by pipeline, one end by the 3rd valve, heating system successively
Water pump and the tenth valve connection heat loss through radiation device, the other end is successively by the 4th valve and the 11st valve connection heat loss through radiation
Device forms across season pond heat accumulation direct heating circuit；
The heat source side of the plate heat exchanger is by pipeline, and one end is successively by plate heat exchange source water circulating pump, the 5th
Valve connects short-term heat accumulation pond, and the other end connects short-term heat accumulation pond by the 6th valve, forms the second heat of plate heat exchanger
Source circuit；Secondary Heat Source side loop and first user's side loop collectively form short-term heat accumulation pond plate heat exchanger and heat back
Road；
The short-term heat accumulation pond user side is by pipeline, and one end is successively by the 5th valve, heating system water circulating pump
Heat loss through radiation device is connected with the tenth valve, the other end connects heat loss through radiation device by the 6th valve, the 11st valve successively,
Form short-term pond heat accumulation direct heating circuit；
The water resource heat pump connects heat loss through radiation device by pipeline, one end by the 9th valve, and the other end passes through successively
Heating system water circulating pump and the tenth valve connection heat loss through radiation device are crossed, forms water resource heat pump user side heating loop；
The water resource heat pump is passed through by pipeline, one end by the 7th valve connection cross-season heat-storing pond, the other end
Heat Pump source water circulating pump connection cross-season heat-storing pond forms water resource heat pump-cross-season heat-storing pond heat source side draw heat and returns
Road；
The water resource heat pump connects short-term heat accumulation pond by pipeline, one end by the 8th valve, and the other end is through overheat
It pumps heat source side water circulating pump and connects short-term heat accumulation pond, form water resource heat pump-short-term heat accumulation pond heat source side and take hot loop；
It is described a kind of to further include control system, control system with the solar energy heating system that short-term heat accumulation is combined across season
Including sensor, controller and motor-driven valve；
First controller controls the thermal-arrest water circulating pump, cross-season heat-storing water circulating pump, plate heat exchange source Xun Huan respectively
Water pump, water resource heat pump heat source side water circulating pump, heating system water circulating pump and water resource heat pump；Second controller is all for controlling
Motor-driven valve；
First temperature sensor and second temperature sensor are arranged in short-term heat accumulation pond；Three-temperature sensor and
Four temperature sensors are arranged in cross-season heat-storing pond；5th temperature sensor is arranged on heating system water circulating pump and the tenth
Between valve；6th temperature sensor is arranged on the port of export of solar thermal collector；7th temperature sensor is arranged on user room
It is interior；Photosensitive sensor is arranged on solar thermal collector surface；
First motor-driven valve is arranged between plate heat exchanger and plate heat exchange source water circulating pump, and positioned at plate heat exchanger
In first heat source side loop and Secondary Heat Source side loop；Second motor-driven valve is arranged on and plate heat exchanger and heating system recirculated water
Between pump, and in first user's side loop of plate heat exchanger；3rd motor-driven valve is arranged on the 3rd valve and heating system
Between water circulating pump, and in short-term pond heat accumulation direct heating circuit and across season pond heat accumulation direct heating circuit；The
Four motor-driven valves are arranged between cross-season heat-storing pond and Heat Pump source water circulating pump, and positioned at water resource heat pump-across season storage
In hot-tub heat source side draw hot loop；5th motor-driven valve is arranged between short-term heat accumulation pond and Heat Pump source water circulating pump,
And it is taken positioned at water resource heat pump-short-term heat accumulation pond heat source side in hot loop；6th motor-driven valve is arranged on water resource heat pump
Between system water circulating pump, and in water resource heat pump user side heating loop.
A kind of control method of the solar energy heating system combined across season with short-term heat accumulation, including as follows：
(1) within the annual time, solar thermal collector, which is collected into heat and is transported in short-term heat accumulation pond, to be stored；Work as the sun
The photosensitive sensor on energy heat collector surface receives luminance signal, that is, opens thermal-arrest water circulating pump, the first valve is opened, by the sun
The heat that energy heat collector is collected into is delivered in short-term heat accumulation pond, i.e. operation collection soft circulation circuit；
(2) in non-heating period, the heat in short-term heat accumulation pond is delivered in cross-season heat-storing pond；When short-term heat accumulation
When the temperature difference of water temperature and water temperature in cross-season heat-storing pond meets temperature difference control unlocking condition in pond, open cross-season heat-storing and follow
Ring water pump opens the second valve, closes the 5th valve and the 6th valve, the heat in short-term heat accumulation pond was delivered to across season
In heat accumulation pond, that is, run cross-season heat-storing pond heat accumulation circulation loop；
It (3), will across season storage when water temperature is higher than the temperature of direct heating in cross-season heat-storing pond after heating period starts
Heat in hot-tub is delivered to the heat loss through radiation device of user end by plate heat exchanger；Open board-like exchanger heat source
Water circulating pump, heating system water circulating pump open the 3rd valve, the 4th valve, the tenth valve, the first motor-driven valve, second electronic
Valve closes the 5th valve, the 6th valve, the 9th valve, the 11st valve, the 3rd motor-driven valve, the 6th motor-driven valve, will across season storage
Heat in hot-tub is delivered to the heat loss through radiation device of user end by plate heat exchanger, that is, runs cross-season heat-storing pond
Plate heat exchanger heating loop；
(4) in heating period, when water temperature meets the temperature of direct heating in cross-season heat-storing pond, by cross-season heat-storing water
Heat in pond is fed directly to the heat loss through radiation device of user end；That is unlatching heating system water circulating pump, the 3rd valve of unlatching,
4th valve, the tenth valve, the 11st valve, the 3rd motor-driven valve close the 5th valve, the 6th valve, the 9th valve, the first electricity
Dynamic valve, the second motor-driven valve, the 6th motor-driven valve send the heat in cross-season heat-storing pond to the heat loss through radiation dress of user end
It puts, that is, runs across season pond heat accumulation direct heating circuit；
(5) when water temperature is unable to reach direct heating requirement in cross-season heat-storing pond, and the water in short-term heat accumulation pond
When temperature is higher than the temperature of direct heating, the heat in short-term heat accumulation pond is delivered to the spoke of user end by plate heat exchanger
Penetrate radiator；Opening board heat exchange source water circulating pump, heating system water circulating pump, open the 5th valve, the 6th valve, the tenth
Valve, the first motor-driven valve, the second motor-driven valve close the second valve, the 3rd valve, the 4th valve, the 9th valve, the 11st valve
Heat in short-term heat accumulation pond is delivered to user end by door, the 3rd motor-driven valve, the 6th motor-driven valve by plate heat exchanger
Heat loss through radiation device runs short-term heat accumulation pond plate heat exchanger heating loop；
(6) when water temperature is unable to reach direct heating requirement in cross-season heat-storing pond, and the water in short-term heat accumulation pond
When temperature meets the requirement of direct heating, the heat loss through radiation that the heat in short-term heat accumulation pond is fed directly to user end fills
It puts；Heating system water circulating pump is opened, opens the 5th valve, the 6th valve, the tenth valve, the 11st valve, the 3rd motor-driven valve,
The second valve, the 3rd valve, the 4th valve, the 9th valve, the second motor-driven valve, the 6th motor-driven valve are closed, by short-term heat accumulation pond
Interior heat is fed directly to the heat loss through radiation device of user end, that is, runs short-term pond heat accumulation direct heating circuit；
(7) when water temperature is unable to reach direct heating requirement in cross-season heat-storing pond, and the water in short-term heat accumulation pond
When temperature is also unsatisfactory for the requirement of direct heating, heat loss through radiation device heat supply of the water resource heat pump to user end, water resource heat pump are opened
Using water temperature in cross-season heat-storing pond and short-term heat accumulation pond the two it is higher as heat source；
When cross-season heat-storing sump water temperature is higher, water resource heat pump, water resource heat pump heat source side water circulating pump, heating system are opened
System water circulating pump, the 7th valve of unlatching, the 9th valve, the tenth valve, the 4th motor-driven valve, the 6th motor-driven valve, the 8th valve of closing,
11st valve, the second motor-driven valve, the 3rd motor-driven valve, the 5th motor-driven valve run water resource heat pump user side heating loop and water
Source heat pump-cross-season heat-storing pond heat source side draw hot loop；
When short-term heat accumulation sump water temperature is higher, water resource heat pump, water resource heat pump heat source side water circulating pump, heating system are opened
Water circulating pump opens the 8th valve, the 9th valve, the tenth valve, the 5th motor-driven valve, the 6th motor-driven valve, closes the 7th valve, the
11 valves, the second motor-driven valve, the 3rd motor-driven valve, the 4th motor-driven valve run water resource heat pump user side heating loop and unlatching
Hot loop is taken into water resource heat pump-short-term heat accumulation pond heat source side.
Beneficial effects of the present invention：
In the non-heating period heat accumulation stage, the thermal-arrest water circulating pump is controlled using solar irradiation, when photosensitive sensor receives
When being irradiated to sunlight, solar energy that heat collector is collected by thermal-arrest water circulating pump is delivered to short-term heat accumulation pond and temporarily stores,
Hot water temperature obtains uniformly after the cushioning effect in short-term heat accumulation pond.In short term between heat accumulation pond and cross-season heat-storing pond
Using Differential Control, short-term heat accumulation pond is capable of providing more stable heat source temperature at this time, reduces the frequent of heat accumulation water pump
Start and stop.
When water temperature is relatively low in middle and later periods cross-season heat-storing pond of heating, the heat that the solar thermal collector is collected is straight
It connects to be delivered in short-term heat accumulation pond and store, the heat terminad heat loss through radiation device heating taken out from short-term heat accumulation pond carries
The high utilization rate of solar energy reduces the energy consumption of auxiliary thermal source.
The control method takes hot form using controller cooperation difference, by the way that motor-driven valve and water pump is controlled to realize heat supply tune
Section, makes the heating load of the cross-season heat-storing solar energy heat distribution system be matched with the calorific requirement of user, facilitates management, saves energy consumption
And manpower, reduce operating cost.By rational system design and auto-controll operation, meeting the same of heat user heat demand
When, utmostly improve solar-heating fraction.The present invention enriches and more rich heating area in China's solar energy resources
With wide applicability.
Description of the drawings
Fig. 1 is a kind of structure diagram for the solar energy heating system being combined across season with short-term heat accumulation of the present invention.
Fig. 2 is the operation control principle schematic diagram that solar thermal collector conveys heat to short-term heat accumulation pond.
Fig. 3 is the operation control principle schematic diagram that short-term heat accumulation pond conveys heat to cross-season heat-storing pond.
Fig. 4 is across season pond thermal storage heating system schematic.
Fig. 5 is short-term pond thermal storage heating system schematic.
In figure：1 solar thermal collector；2 short-term heat accumulation ponds；3 cross-season heat-storing ponds；4 water resource heat pumps；5 heat loss through radiation
Device；The first heat exchange coils of E1；The second heat exchange coils of E2；E3 plate heat exchangers；P1 thermal-arrest water circulating pumps；P2 cross-season heat-storings follow
Ring water pump；P3 plates heat exchange source water circulating pump；P4 Heat Pump source water circulating pumps；P5 heating system water circulating pumps；The first valves of V1
Door；The second valves of V2；The 3rd valves of V3；The 4th valves of V4；The 5th valves of V5；The 6th valves of V6；The 7th valves of V7；The 8th valves of V8
Door；The 9th valves of V9；The tenth valves of V10；The 11st valves of V11；The first motor-driven valves of Ve1；The second motor-driven valves of Ve2；The 3rd electricity of Ve3
Dynamic valve；The 4th motor-driven valves of Ve4；The 5th motor-driven valves of Ve5；The 6th motor-driven valves of Ve6；The first temperature sensors of S1；S2 second temperatures pass
Sensor；S3 three-temperature sensors；The 4th temperature sensors of S4；The 5th temperature sensors of S5；The 6th temperature sensors of S6；S7
Seven temperature sensors；S8 photosensitive sensors；The first controllers of C1；C2 second controllers.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples.
A kind of solar energy heating system combined across season with short-term heat accumulation, including solar thermal collector 1, short-term water storage
Pond 2, cross-season heat-storing pond 3, water resource heat pump 4, heat loss through radiation device 5, plate heat exchanger E3, valve and water pump；
The heat loss through radiation device 5 is arranged in user room, to hang canopy formula radiant panel, window following formula radiant panel, metope formula
Radiant panel, ground type radiant panel, capillary radiation plate etc.；
The solar thermal collector 1 passes through the first valve V1 sum aggregate thermal cycle water pumps P1 successively by pipeline, the port of export
Connect the first heat exchange coil E1 in short-term heat accumulation pond 2, the first heat exchange coil in the direct-connected short-term heat accumulation pond 2 of arrival end
E1 forms collection soft circulation circuit；
The short-term heat accumulation pond 2 is gone out terminal and is cycled successively by the second valve V2 and cross-season heat-storing by pipeline
Water pump P 2 connects the second heat exchange coil E2 in cross-season heat-storing pond 3, and second in the direct-connected cross-season heat-storing pond 3 in circuit end
Heat exchange coil E2 forms cross-season heat-storing pond heat accumulation circulation loop；
The heat source side of the plate heat exchanger E3 by pipeline, one end successively by plate heat exchange source water circulating pump P3 and
3rd valve V3 connection cross-season heat-storings pond 3, the other end pass through the 4th valve V4 connection cross-season heat-storings pond 3, form plate
The first heat source side loop of formula heat exchanger E3；The user side of plate heat exchanger E3 passes through heating system successively by pipeline, one end
Water circulating pump P5 and the tenth valve V10 connection heat loss through radiation device 5, the other end are directly connected to heat loss through radiation device 5, form board-like
First user's side loop of heat exchanger E3, the first heat source side loop and first user's side loop collectively form cross-season heat-storing pond
Plate heat exchanger heating loop；
3 user side of cross-season heat-storing pond is followed by pipeline, one end by the 3rd valve V3, heating system successively
Ring water pump P 5 connects heat loss through radiation device 5 with the tenth valve V10, and the other end passes through the 4th valve V4 and the 11st valve successively
V11 connection heat loss through radiation device 5 forms across season pond heat accumulation direct heating circuit；
The heat source side of the plate heat exchanger E3 by pipeline, one end successively by plate heat exchange source water circulating pump P3,
The 5th short-term heat accumulation pond 2 of valve V5 connections, the other end pass through the 6th short-term heat accumulation pond 2 of valve V6 connections, form board-like change
Hot device E3 Secondary Heat Source side loops；Secondary Heat Source side loop and first user's side loop collectively form that short-term heat accumulation pond is board-like to be changed
Hot device heating loop；
Short-term 2 user side of heat accumulation pond is by pipeline, and one end is successively by the 5th valve V5, heating system recirculated water
P5 and the tenth valve V10 connection heat loss through radiation device 5 are pumped, the other end is successively by the 6th valve V6, the 11st valve V11 connections
Heat loss through radiation device 5 forms short-term pond heat accumulation direct heating circuit；
For the water resource heat pump 4 by pipeline, the 9th valve V9 connection heat loss through radiation device 5 is passed through in one end, the other end according to
It is secondary to pass through heating system water circulating pump P5 and the tenth valve V10 connection heat loss through radiation device 5, form the heating of water resource heat pump user side
Circuit；
The water resource heat pump 4 passes through the 7th valve V7 connection cross-season heat-storings pond 3, the other end by pipeline, one end
By Heat Pump source water circulating pump P4 connection cross-season heat-storings pond 3, water resource heat pump-cross-season heat-storing pond heat source side is formed
Take hot loop；
For the water resource heat pump 4 by pipeline, the 8th short-term heat accumulation pond 2 of valve V8 connections, other end warp are passed through in one end
The short-term heat accumulation pond 2 of heat pump heat source side water circulating pump P4 connections is crossed, water resource heat pump-short-term heat accumulation pond heat source side is formed and heat is taken to return
Road；
It is described a kind of to further include control system, control system with the solar energy heating system that short-term heat accumulation is combined across season
Including sensor, controller and motor-driven valve；
First controller C1 controls the thermal-arrest water circulating pump P1, cross-season heat-storing water circulating pump P2, plate heat exchange source respectively
Side water circulating pump P3, water resource heat pump heat source side water circulating pump P4, heating system water circulating pump P5 and water resource heat pump 4；Second control
Device C2 is used to control all motor-driven valves；
First temperature sensor S1 and second temperature sensor S2 is arranged in short-term heat accumulation pond 2；3rd temperature sensing
Device S3 and the 4th temperature sensor S4 are arranged in cross-season heat-storing pond 3；5th temperature sensor S5 is arranged on heating system
Between water circulating pump P5 and the tenth valve V10；6th temperature sensor S6 is arranged on the port of export of solar thermal collector 1；7th
Temperature sensor S7 is arranged in user room；Photosensitive sensor S8 is arranged on 1 surface of solar thermal collector；
First motor-driven valve Ve1 is arranged between plate heat exchanger E3 and plate heat exchange source water circulating pump P3, and positioned at board-like
In the first heat source side loop and Secondary Heat Source side loop of heat exchanger E3；Second motor-driven valve Ve2 is arranged on and plate heat exchanger E3
Between heating system water circulating pump P5, and in first user's side loop of plate heat exchanger E3；3rd motor-driven valve Ve3 is set
It puts between the 3rd valve V3 and heating system water circulating pump P5, and positioned at short-term pond heat accumulation direct heating circuit and across season
In the heat accumulation direct heating circuit of pond；4th motor-driven valve Ve4 is arranged on cross-season heat-storing pond 3 and Heat Pump source water circulating pump
Between P4, and in water resource heat pump-cross-season heat-storing pond heat source side draw hot loop；5th motor-driven valve Ve5 is arranged in short term
Between heat accumulation pond 2 and Heat Pump source water circulating pump P4, and hot loop is taken positioned at water resource heat pump-short-term heat accumulation pond heat source side
In；6th motor-driven valve Ve6 is arranged between water resource heat pump 4 and heating system water circulating pump P5, and positioned at water resource heat pump user side
In heating loop.
A kind of control method of the solar energy heating system combined across season with short-term heat accumulation, including as follows：
(1) within the annual time, solar thermal collector 1, which is collected into heat and is transported in short-term heat accumulation pond 2, to be stored；When too
The photosensitive sensor S8 on 1 surface of positive energy heat collector receives luminance signal, that is, opens thermal-arrest water circulating pump P1, opens the first valve
The heat that solar thermal collector 1 is collected into is delivered in short-term heat accumulation pond 2 by V1, i.e. operation collection soft circulation circuit；
(2) in non-heating period, the heat in short-term heat accumulation pond 2 is delivered in cross-season heat-storing pond 3；When short-term storage
When the temperature difference of water temperature and water temperature in cross-season heat-storing pond 3 meets temperature difference control unlocking condition in hot-tub 2, across season storage is opened
Thermal cycle water pump P2 opens the second valve V2, the 5th valve V5 and the 6th valve V6 is closed, by the heat in short-term heat accumulation pond 2
Amount is delivered in cross-season heat-storing pond 3, that is, runs cross-season heat-storing pond heat accumulation circulation loop；
It (3), will be across season when water temperature is higher than the temperature of direct heating in cross-season heat-storing pond 3 after heating period starts
Heat in heat accumulation pond 3 is delivered to the heat loss through radiation device 5 of user end by plate heat exchanger E3；Open plate heat exchanger
Heat source side water circulating pump P3, heating system water circulating pump P5 open the 3rd valve V3, the 4th valve V4, the tenth valve V10, the
One motor-driven valve Ve1, the second motor-driven valve Ve2, close the 5th valve V5, the 6th valve V6, the 9th valve V9, the 11st valve V11,
Heat in cross-season heat-storing pond 3 is delivered to use by the 3rd motor-driven valve Ve3, the 6th motor-driven valve Ve6 by plate heat exchanger E3
The heat loss through radiation device 5 of family end runs cross-season heat-storing pond plate heat exchanger heating loop；
(4) in heating period, when water temperature meets the temperature of direct heating in cross-season heat-storing pond 3, by cross-season heat-storing
Heat in pond 3 is fed directly to the heat loss through radiation device 5 of user end；Heating system water circulating pump P5 is opened, opens the
Three valve V3, the 4th valve V4, the tenth valve V10, the 11st valve V11, the 3rd motor-driven valve Ve3, the 5th valve Ve5 of closing,
6th valve V6, the 9th valve V9, the first motor-driven valve Ve1, the second motor-driven valve Ve2, the 6th motor-driven valve Ve6, by cross-season heat-storing
Heat in pond 3 is sent to the heat loss through radiation device 5 of user end, that is, runs across season pond heat accumulation direct heating circuit；
(5) when water temperature is unable to reach direct heating requirement in cross-season heat-storing pond 3, and in short-term heat accumulation pond 2
When water temperature is higher than the temperature of direct heating, the heat in short-term heat accumulation pond 2 is delivered to user end by plate heat exchanger E3
The heat loss through radiation device 5 at end；Opening board heat exchange source water circulating pump P3, heating system water circulating pump P5, the 5th valve V5 of unlatching,
6th valve V6, the tenth valve V10, the first motor-driven valve Ve1, the second motor-driven valve Ve2, close the second valve V2, the 3rd valve V3,
4th valve V4, the 9th valve V9, the 11st valve V11, the 3rd motor-driven valve Ve3, the 6th motor-driven valve Ve6, by short-term water storage
Heat in pond 2 is delivered to the heat loss through radiation device 5 of user end by plate heat exchanger E3, that is, runs short-term heat accumulation pond plate
Formula heat exchanger heating loop；
(6) when water temperature is unable to reach direct heating requirement in cross-season heat-storing pond 3, and in short-term heat accumulation pond 2
When water temperature meets the requirement of direct heating, the heat in short-term heat accumulation pond 2 is fed directly to the heat loss through radiation of user end
Device 5；Heating system water circulating pump P5 is opened, opens the 5th valve V5, the 6th valve V6, the tenth valve V10, the 11st valve
V11, the 3rd motor-driven valve Ve3 close the second valve V2, the 3rd valve V3, the 4th valve V4, the 9th valve V9, the second motor-driven valve
Heat in short-term heat accumulation pond 2 is fed directly to the heat loss through radiation device 5 of user end, i.e., by Ve2, the 6th motor-driven valve Ve6
Run short-term pond heat accumulation direct heating circuit；
(7) when water temperature is unable to reach direct heating requirement in cross-season heat-storing pond 3, and in short-term heat accumulation pond 2
When water temperature is also unsatisfactory for the requirement of direct heating, heat loss through radiation device 5 heat supply of the water resource heat pump 4 to user end, water source are opened
Heat pump 4 using water temperature in cross-season heat-storing pond 3 and short-term 2 the two of heat accumulation pond it is higher as heat source；
When 3 water temperature of cross-season heat-storing pond is higher, opens water resource heat pump 4, water resource heat pump heat source side water circulating pump P4, supply
Heating system water circulating pump P5 opens the 7th valve V7, the 9th valve V9, the tenth valve V10, the 4th motor-driven valve Ve4, the 6th electronic
Valve Ve6 closes the 8th valve V8, the 11st valve V11, the second motor-driven valve Ve2, the 3rd motor-driven valve V3, the 5th motor-driven valve V5, i.e.,
Run water resource heat pump user side heating loop and water resource heat pump-cross-season heat-storing pond heat source side draw hot loop；
When short-term 2 water temperature of heat accumulation pond is higher, water resource heat pump 4, water resource heat pump heat source side water circulating pump P4, heating are opened
System circulation water pump P5 opens the 8th valve V8, the 9th valve V9, the tenth valve V10, the 5th motor-driven valve Ve5, the 6th motor-driven valve
Ve6 closes the 7th valve V7, the 11st valve V11, the second motor-driven valve Ve2, the 3rd motor-driven valve Ve3, the 4th motor-driven valve Ve4, i.e.,
Operation water resource heat pump user side heating loop and unlatching take hot loop into water resource heat pump-short-term heat accumulation pond heat source side.
Claims (4)
1. a kind of solar energy heating system combined across season with short-term heat accumulation, which is characterized in that including solar thermal collector
(1), short-term heat accumulation pond (2), cross-season heat-storing pond (3), water resource heat pump (4), heat loss through radiation device (5), plate heat exchanger
(E3), valve and water pump；
The heat loss through radiation device (5) is arranged in user room；
The solar thermal collector (1) passes through the first valve (V1) sum aggregate thermal cycle water pump successively by pipeline, the port of export
(P1) the first heat exchange coil (E1) in short-term heat accumulation pond (2) is connected, first in the direct-connected short-term heat accumulation pond (2) of arrival end
Heat exchange coil (E1) forms collection soft circulation circuit；
The short-term heat accumulation pond (2) is gone out terminal and is cycled successively by the second valve (V2) and cross-season heat-storing by pipeline
The second heat exchange coil (E2) in water pump (P2) connection cross-season heat-storing pond (3), the direct-connected cross-season heat-storing pond (3) in circuit end
In the second heat exchange coil (E2), form cross-season heat-storing pond heat accumulation circulation loop；
The heat source side of the plate heat exchanger (E3) by pipeline, one end successively by plate heat exchange source water circulating pump (P3) and
3rd valve (V3) connects cross-season heat-storing pond (3), and the other end is by the 4th valve (V4) connection cross-season heat-storing pond
(3), the first heat source side loop of plate heat exchanger (E3) is formed；The user side of plate heat exchanger (E3) by pipeline, one end according to
Secondary to connect heat loss through radiation device (5) by heating system water circulating pump (P5) and the tenth valve (V10), the other end is directly connected to spoke
Radiator (5) is penetrated, forms first user's side loop of plate heat exchanger (E3), the first heat source side loop and the first user side are returned
Road collectively forms cross-season heat-storing pond plate heat exchanger heating loop；
Cross-season heat-storing pond (3) user side is followed by pipeline, one end by the 3rd valve (V3), heating system successively
Ring water pump (P5) and the tenth valve (V10) connection heat loss through radiation device (5), the other end pass through the 4th valve (V4) and the tenth successively
One valve (V11) connection heat loss through radiation device (5), forms across season pond heat accumulation direct heating circuit；
The heat source side of the plate heat exchanger (E3) by pipeline, one end successively by plate heat exchange source water circulating pump (P3),
5th valve (V5) connects short-term heat accumulation pond (2), and the other end connects short-term heat accumulation pond (2), structure by the 6th valve (V6)
Into plate heat exchanger (E3) Secondary Heat Source side loop；Secondary Heat Source side loop and first user's side loop collectively form short-term heat accumulation
Pond plate heat exchanger heating loop；
Short-term heat accumulation pond (2) user side is by pipeline, and one end is successively by the 5th valve (V5), heating system recirculated water
(P5) and the tenth valve (V10) connection heat loss through radiation device (5) are pumped, the other end is successively by the 6th valve (V6), the 11st valve
Door (V11) connection heat loss through radiation device (5), forms short-term pond heat accumulation direct heating circuit；
The water resource heat pump (4) is by pipeline, and one end is by the 9th valve (V9) connection heat loss through radiation device (5), the other end
Successively by heating system water circulating pump (P5) and the tenth valve (V10) connection heat loss through radiation device (5), form water resource heat pump and use
Family side heating loop；
For the water resource heat pump (4) by pipeline, one end connects cross-season heat-storing pond (3) by the 7th valve (V7), another
End connects cross-season heat-storing pond (3) by Heat Pump source water circulating pump (P4), forms water resource heat pump-cross-season heat-storing pond
Heat source side draw hot loop；
The water resource heat pump (4) connects short-term heat accumulation pond (2), the other end by pipeline, one end by the 8th valve (V8)
Short-term heat accumulation pond (2) is connected by Heat Pump source water circulating pump (P4), forms water resource heat pump-short-term heat accumulation pond heat source side
Take hot loop.
2. a kind of solar energy heating system combined across season with short-term heat accumulation according to claim 1, which is characterized in that
The heat loss through radiation device (5) for hang canopy formula radiant panel, window following formula radiant panel, metope formula radiant panel, ground type radiant panel or
Capillary radiation plate.
3. a kind of solar energy heating system combined across season with short-term heat accumulation according to claim 1 or 2, feature exist
In the solar energy heating system further includes control system, and control system includes sensor, controller and motor-driven valve；
First controller (C1) controls the thermal-arrest water circulating pump (P1), cross-season heat-storing water circulating pump (P2), plate heat exchange respectively
Source water circulating pump (P3), water resource heat pump heat source side water circulating pump (P4), heating system water circulating pump (P5) and water resource heat pump
(4)；Second controller (C2) is used to control all motor-driven valves；
First temperature sensor (S1) and second temperature sensor (S2) are arranged in short-term heat accumulation pond (2)；3rd temperature passes
Sensor (S3) and the 4th temperature sensor (S4) are arranged in cross-season heat-storing pond (3)；5th temperature sensor (S5) is set
Between heating system water circulating pump (P5) and the tenth valve (V10)；6th temperature sensor (S6) is arranged on solar energy heating
The port of export of device (1)；7th temperature sensor (S7) is arranged in user room；Photosensitive sensor (S8) is arranged on solar energy heating
On device (1) surface；
First motor-driven valve (Ve1) is arranged between plate heat exchanger (E3) and plate heat exchange source water circulating pump (P3), and positioned at plate
In the first heat source side loop and Secondary Heat Source side loop of formula heat exchanger (E3)；Second motor-driven valve (Ve2) is arranged on to be changed with board-like
Between hot device (E3) and heating system water circulating pump (P5), and in first user's side loop of plate heat exchanger (E3)；The
Three motor-driven valves (Ve3) are arranged between the 3rd valve (V3) and heating system water circulating pump (P5), and positioned at short-term pond heat accumulation
In direct heating circuit and across season pond heat accumulation direct heating circuit；4th motor-driven valve (Ve4) is arranged on cross-season heat-storing water
Between pond (3) and Heat Pump source water circulating pump (P4), and positioned at water resource heat pump-cross-season heat-storing pond heat source side draw hot loop
In；5th motor-driven valve (Ve5) is arranged between short-term heat accumulation pond (2) and Heat Pump source water circulating pump (P4), and positioned at water
Source heat pump-short-term heat accumulation pond heat source side is taken in hot loop；6th motor-driven valve (Ve6) is arranged on water resource heat pump (4)
Between system water circulating pump (P5), and in water resource heat pump user side heating loop.
4. a kind of control method of the solar energy heating system combined across season with short-term heat accumulation, which is characterized in that including as follows：
(1) within the annual time, solar thermal collector (1) is collected into heat and is transported to storage in short-term heat accumulation pond (2)；When too
It is positive can the photosensitive sensor (S8) on heat collector (1) surface receive luminance signal, that is, open thermal-arrest water circulating pump (P1), open the
The heat that solar thermal collector (1) is collected into is delivered in short-term heat accumulation pond (2) by one valve (V1), that is, is run thermal-arrest and followed
Loop back path；
(2) in non-heating period, the heat in short-term heat accumulation pond (2) is delivered in cross-season heat-storing pond (3)；When short-term storage
When the temperature difference of hot-tub (2) interior water temperature and cross-season heat-storing pond (3) interior water temperature meets temperature difference control unlocking condition, open across season
Heat accumulation water circulating pump (P2) is saved, opens the second valve (V2), the 5th valve (V5) and the 6th valve (V6) are closed, by short-term heat accumulation
Heat in pond (2) is delivered in cross-season heat-storing pond (3), that is, runs cross-season heat-storing pond heat accumulation circulation loop；
It (3), will across season storage when cross-season heat-storing pond (3) interior water temperature is higher than the temperature of direct heating after heating period starts
Heat in hot-tub (3) is delivered to the heat loss through radiation device (5) of user end by plate heat exchanger (E3)；Open board-like change
Hot device heat source side water circulating pump (P3), heating system water circulating pump (P5) open the 3rd valve (V3), the 4th valve (V4), the
Ten valves (V10), the first motor-driven valve (Ve1), the second motor-driven valve (Ve2) close the 5th valve (V5), the 6th valve (V6), the
Nine valves (V9), the 11st valve (V11), the 3rd motor-driven valve (Ve3), the 6th motor-driven valve (Ve6), by cross-season heat-storing pond
(3) heat in is delivered to the heat loss through radiation device (5) of user end by plate heat exchanger (E3), that is, runs cross-season heat-storing
Pond plate heat exchanger heating loop；
(4) in heating period, when cross-season heat-storing pond (3) interior water temperature meets the temperature of direct heating, by cross-season heat-storing water
Heat in pond (3) is fed directly to the heat loss through radiation device (5) of user end；Heating system water circulating pump (P5) is opened, is opened
The 3rd valve (V3), the 4th valve (V4), the tenth valve (V10), the 11st valve (V11), the 3rd motor-driven valve (Ve3) are opened, is closed
Close the 5th valve (Ve5), the 6th valve (V6), the 9th valve (V9), the first motor-driven valve (Ve1), the second motor-driven valve (Ve2),
Heat in cross-season heat-storing pond (3) is sent to the heat loss through radiation device (5) of user end, that is, run by six motor-driven valves (Ve6)
Across season pond heat accumulation direct heating circuit；
(5) when cross-season heat-storing pond (3) interior water temperature is unable to reach direct heating requirement, and in short-term heat accumulation pond (2)
When water temperature is higher than the temperature of direct heating, the heat in short-term heat accumulation pond (2) is delivered to use by plate heat exchanger (E3)
The heat loss through radiation device (5) of family end；Opening board heat exchange source water circulating pump (P3), heating system water circulating pump (P5) are opened
5th valve (V5), the 6th valve (V6), the tenth valve (V10), the first motor-driven valve (Ve1), the second motor-driven valve (Ve2) are closed
It is second valve (V2), the 3rd valve (V3), the 4th valve (V4), the 9th valve (V9), the 11st valve (V11), the 3rd electronic
Heat in short-term heat accumulation pond (2) is delivered to user by valve (Ve3), the 6th motor-driven valve (Ve6) by plate heat exchanger (E3)
The heat loss through radiation device (5) of end runs short-term heat accumulation pond plate heat exchanger heating loop；
(6) when cross-season heat-storing pond (3) interior water temperature is unable to reach direct heating requirement, and in short-term heat accumulation pond (2)
When water temperature meets the requirement of direct heating, the radiation that the heat in short-term heat accumulation pond (2) is fed directly to user end dissipates
Thermal (5)；Heating system water circulating pump (P5) is opened, opens the 5th valve (V5), the 6th valve (V6), the tenth valve
(V10), the 11st valve (V11), the 3rd motor-driven valve (Ve3) close the second valve (V2), the 3rd valve (V3), the 4th valve
(V4), the 9th valve (V9), the second motor-driven valve (Ve2), the 6th motor-driven valve (Ve6) are straight by the heat in short-term heat accumulation pond (2)
The heat loss through radiation device (5) for being delivered to user end is connect, that is, runs short-term pond heat accumulation direct heating circuit；
(7) when cross-season heat-storing pond (3) interior water temperature is unable to reach direct heating requirement, and in short-term heat accumulation pond (2)
When water temperature is also unsatisfactory for the requirement of direct heating, heat loss through radiation device (5) heat supply of water resource heat pump (4) to user end is opened,
Water resource heat pump (4) using water temperature in cross-season heat-storing pond (3) and short-term heat accumulation pond (2) the two it is higher as heat source；
When cross-season heat-storing pond (3) water temperature is higher, open water resource heat pump (4), water resource heat pump heat source side water circulating pump (P4),
Heating system water circulating pump (P5) opens the 7th valve (V7), the 9th valve (V9), the tenth valve (V10), the 4th motor-driven valve
(Ve4), the 6th motor-driven valve (Ve6) closes the 8th valve (V8), the 11st valve (V11), the second motor-driven valve (Ve2), the 3rd electricity
Dynamic valve (V3), the 5th motor-driven valve (V5), that is, run water resource heat pump user side heating loop and water resource heat pump-cross-season heat-storing pond
Heat source side draw hot loop；
When short-term heat accumulation pond (2) water temperature is higher, opens water resource heat pump (4), water resource heat pump heat source side water circulating pump (P4), supply
Heating system water circulating pump (P5) opens the 8th valve (V8), the 9th valve (V9), the tenth valve (V10), the 5th motor-driven valve
(Ve5), the 6th motor-driven valve (Ve6) closes the 7th valve (V7), the 11st valve (V11), the second motor-driven valve (Ve2), the 3rd electricity
Dynamic valve (Ve3), the 4th motor-driven valve (Ve4) run water resource heat pump user side heating loop and open into water resource heat pump-short-term storage
Hot-tub heat source side draw hot loop.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810003235.4A CN108050576A (en) | 2018-01-03 | 2018-01-03 | A kind of solar energy heating system combined across season with short-term heat accumulation and its control method |
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| CN201810003235.4A CN108050576A (en) | 2018-01-03 | 2018-01-03 | A kind of solar energy heating system combined across season with short-term heat accumulation and its control method |
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| CN110207242A (en) * | 2019-06-04 | 2019-09-06 | 会宁县众沛电子商贸有限公司 | Photovoltaic heating system based on cross-season heat-storage |
| CN111207436A (en) * | 2020-02-17 | 2020-05-29 | 中国科学院工程热物理研究所 | Heat pump electricity storage cogeneration system |
| CN112131715A (en) * | 2020-09-01 | 2020-12-25 | 大连理工大学 | TRNSYS-based long-short-term coupling heat storage solar heating system model and modeling method |
| CN114593455A (en) * | 2022-03-22 | 2022-06-07 | 国网综合能源服务集团有限公司 | Cold and heat energy supply system and method |
| CN114992696A (en) * | 2022-05-31 | 2022-09-02 | 中国五冶集团有限公司 | Solar heat storage and water source heat pump coupling heating system with three-stage heating pipeline |
| CN114992697A (en) * | 2022-05-31 | 2022-09-02 | 中国五冶集团有限公司 | Cross-season water-saving pool heat storage solar energy and water source heat pump coupling heating system and control method |
| CN115176631A (en) * | 2022-06-30 | 2022-10-14 | 潍坊博泰能源科技有限公司 | Solar long-short term coupling heat storage-based multi-energy complementary greenhouse system and method |
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