CN108644866B - A kind of solar energy Coupling Water-source Heat Pump heat supply heating system and application method - Google Patents

A kind of solar energy Coupling Water-source Heat Pump heat supply heating system and application method Download PDF

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Publication number
CN108644866B
CN108644866B CN201810603232.4A CN201810603232A CN108644866B CN 108644866 B CN108644866 B CN 108644866B CN 201810603232 A CN201810603232 A CN 201810603232A CN 108644866 B CN108644866 B CN 108644866B
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valve
water
pump
heat
pipeline
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CN108644866A (en
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舒海文
张宏亮
姜珊
郭晓东
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Dalian University of Technology
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Dalian University of Technology
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Priority to CN201810603232.4A priority Critical patent/CN108644866B/en
Priority to PCT/CN2018/096128 priority patent/WO2019237451A1/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D11/00Central heating systems using heat accumulated in storage masses
    • F24D11/02Central heating systems using heat accumulated in storage masses using heat pumps
    • F24D11/0214Central heating systems using heat accumulated in storage masses using heat pumps water heating system
    • F24D11/0221Central heating systems using heat accumulated in storage masses using heat pumps water heating system combined with solar energy
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D11/00Central heating systems using heat accumulated in storage masses
    • F24D11/02Central heating systems using heat accumulated in storage masses using heat pumps
    • F24D11/0214Central heating systems using heat accumulated in storage masses using heat pumps water heating system
    • F24D11/0228Central heating systems using heat accumulated in storage masses using heat pumps water heating system combined with conventional heater
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00Details
    • F24D19/10Arrangement or mounting of control or safety devices
    • F24D19/1006Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1009Arrangement or mounting of control or safety devices for water heating systems for central heating
    • F24D19/1015Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/20Solar thermal
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/70Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/12Hot water central heating systems using heat pumps

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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)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

The present invention discloses a kind of solar energy Coupling Water-source Heat Pump heat supply heating system and application method, it is related to heating plant technical field, primary structure includes solar thermal collector, domestic hot-water's hot water storage tank, heating hot water storage tank, heat pump, First Heat Exchanger, the second heat exchanger, Low Temperature Thermal land source side water pump, heat-collecting pump, middle water pump, low-temperature heat source and controller;Pass through the opening and closing of each valve and pump in controller control system, domestic hot-water's hot water storage tank and heating hot water storage tank pass through series operation or heating hot water storage tank isolated operation, it is capable of forming different heating modes, to make full use of solar energy while provide domestic hot-water and heating for user.

Description

A kind of solar energy Coupling Water-source Heat Pump heat supply heating system and application method
Technical field
The present invention relates to heating plant technical fields, more particularly to a kind of solar energy Coupling Water-source Heat Pump heat supply heating system System and application method.
Background technique
With the growth year by year of building energy consumption, the utilization technology of building energy conservation and renewable energy has become numerous The hot spot of person's concern.A kind of application technology of the water resource heat pump as renewable energy, rationally application can obtain good section It can environment protecting.The technology is using the heat in surface water, underground water or the sanitary sewage such as rivers,lakes and seas, by defeated when heating Enter generally available 2~4 times of the heat of a small amount of electric energy;Meanwhile it is auxiliary using the renewable energy of this easy acquisition of solar energy Helping water source heat pump system is building heating, is had to the environmental problems such as the exhaustion of China's fossil energy and the haze being on the rise are alleviated Very important realistic meaning.
The feasibility of solar energy Coupling Water-source Heat Pump technology has become the common recognition of numerous researchers, studies have shown that this pair is hot On the one hand source heating technology can solve the problem that heat collector area is excessive when solar energy individually heats, on the other hand can be improved Heat pump unit water at low temperature source water temperature, and then the operational energy efficiency of unit is improved, reduce the operation energy consumption of system.Single water source heat It is mature to pump Technical comparing, solar energy heating system also has technical specification guidance, but exists about solar energy-water source heat pump combining system Research in terms of building heating, the especially research in terms of diurnal storage solar energy Coupling Water-source Heat Pump heating are still insufficient. For solar energy diurnal storage, since solar energy has the spy of the scrambling of intermittent and sunshine-duration on daytime and intensity round the clock Point, so the method for operation of the association system just becomes the key for improving the association system efficiency and reliability.Current solar energy The general method of operation of Coupling Water-source Heat Pump are as follows: while solar heat-preservation, in real time according to the exit water temperature of hot water storage tank Different operational modes is selected, to make full use of the hot water in water tank to heat.This method of operation effectively improves heat The water temperature of water at low temperature source is pumped, the operational energy efficiency of heat pump unit increases accordingly, to save the operation energy consumption of system.But water Hot water in case is used in real time so that the hot water mean temperature in system heating process in hot water storage tank cannot fill Divide and improve, the time for causing the hot water in water tank to be used directly to heating is shorter, or the temperature of direct-furnish is not achieved at all, thus heat Pump assembly needs prolonged booting heating.This method of operation seems can utilize solar energy in time, but pass through research hair Now since the advantage of solar energy direct heating cannot be made full use of, thus the operation energy of system can not be improved to the maximum extent Effect.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of solar energy Coupling Water-source Heat Pump heat supply heating system and side Method can provide domestic hot-water and heating simultaneously for user.
To achieve the above object, the present invention provides following schemes:
The present invention provides a kind of solar energy Coupling Water-source Heat Pump heat supply heating system, including solar thermal collector, life heat Water hot water storage tank, heating hot water storage tank, heat pump, First Heat Exchanger, the second heat exchanger, Low Temperature Thermal land source side water pump, heat-collecting pump, centre Water pump, low-temperature heat source and and controller;
The major cycle water out of the solar thermal collector and the first water inlet of domestic hot-water's hot water storage tank pass through First pipeline is connected, the second water inlet of the first water outlet of domestic hot-water's hot water storage tank and the heating hot water storage tank Be connected by the second pipeline, it is described heating hot water storage tank the second water outlet and the solar thermal collector major cycle water into Mouth is connected by third pipeline;
The major cycle water out is connected with the major cycle water inlet in the inside of the solar thermal collector;It is described First water inlet is connected with first water outlet in the inside of domestic hot-water's hot water storage tank;Second water inlet with Second water outlet is connected in the inside of the heating hot water storage tank;
The third water inlet of the heat pump is connected with the 4th water outlet of the First Heat Exchanger by the 5th pipeline, institute The 4th water inlet for stating First Heat Exchanger is connected with the 5th water outlet of second heat exchanger by the 6th pipeline, and described 5th water inlet of two heat exchangers is connected with the third water outlet of the heat pump by the 7th pipeline;
The third water inlet is connected with the third water outlet in the inside of the heat pump;4th water outlet with 4th water inlet is connected in the inside of the First Heat Exchanger;5th water outlet and the 5th water inlet are in institute The inside for stating the second heat exchanger is connected;
6th water outlet of the heat pump is connected with heating user by the 8th pipeline;6th water inlet of the heat pump It is connected with heating user by the 9th pipeline;
6th water outlet is connected with the 6th water inlet in the inside of the heat pump;
The 7th water inlet and the 7th water outlet of second heat exchanger are connected with the low-temperature heat source;Described 7th Water inlet is connected with the 7th water outlet in the inside of second heat exchanger;7th water inlet and the Low Temperature Thermal The Low Temperature Thermal land source side water pump is provided between source;
9th water inlet of the 8th water outlet of the First Heat Exchanger and the heating hot water storage tank passes through the tenth pipeline It is connected, the 9th water outlet of the 8th water inlet of the First Heat Exchanger and the heating hot water storage tank passes through the 11st pipeline It is connected;The middle water pump is provided on 11st pipeline;9th water outlet and the 8th pipeline pass through the 12 pipelines are connected;
8th water outlet is connected with the 8th water inlet in the inside of the First Heat Exchanger;Described 9th goes out The mouth of a river is connected with the 9th water inlet in the inside of the heating hot water storage tank;
8th water outlet is connected with the 7th pipeline by the 13rd pipeline;7th pipeline and described the Nine pipelines are connected by the 14th pipeline;
It is additionally provided with the 15th pipeline between 5th pipeline and the 11st pipeline, is set on the 15th pipeline It is equipped with the 13rd valve;
It is also set between the major cycle water out of the solar thermal collector and the second water inlet of the heating hot water storage tank It is equipped with the 4th pipeline;The first valve is provided on 4th pipeline;
It is provided with the second valve on first pipeline, third valve, the tenth pipe are provided on the third pipeline Road is provided with the 4th valve, and the 5th valve is provided on the 6th pipeline, is provided with the 6th valve on the 13rd pipeline , it is provided with the 7th valve on the 7th pipeline, the 8th valve, the 12nd pipeline are provided on the 14th pipeline On be provided with the 9th valve, the tenth valve is provided on the 11st pipeline, is provided with the 11st on the 15th pipeline Valve is provided with the 12nd valve on the 8th pipeline, is provided with the 13rd valve on the 9th pipeline;
The controller is for controlling first valve, second valve, the third valve, the 4th valve Door, the 5th valve, the 6th valve, the 7th valve, the 8th valve, the 9th valve, the described tenth The opening and closing of valve, the 11st valve, the 12nd valve, the 13rd valve;
The controller is electrically connected with the heat pump, the Low Temperature Thermal land source side water pump, the heat-collecting pump and the middle water pump It connects.
Optionally, an end water circulating pump, the end water circulating pump and the control are provided on the 8th pipeline Device electrical connection.
Optionally, water supply pipe and user's hot-water line are additionally provided on domestic hot-water's hot water storage tank.
Optionally, be additionally provided with electrical auxiliary heater on domestic hot-water's hot water storage tank, the electrical auxiliary heater with The controller electrical connection.
Optionally, secondary cycle pump is provided on the 6th pipeline, the secondary cycle pump is electrically connected with the controller It connects.
Optionally, first water outlet and second water outlet are provided with temperature sensor, and the temperature passes Sensor is electrically connected with the controller.
The present invention also provides a kind of application method of above-mentioned solar energy Coupling Water-source Heat Pump heat supply heating system, including it is following Five kinds of operational modes:
The first, solar energy directly heat domestic hot-water's mode: the water outlet of the first water outlet of domestic hot-water's hot water storage tank When temperature is lower than the setting leaving water temperature of domestic hot-water's hot water storage tank, the first valve is closed, opens the second valve and third valve, Heat-collecting pump is opened, system directly utilizes the water in solar thermal collector heating domestic hot water's hot water storage tank, and user provides for hot water Domestic hot-water;
Second, solar energy direct heating mode: when the second water outlet water temperature T of heating hot water storage tank is higher than the straight of setting When for start-up temperature Td, system is directly heated using solar water, at this point, the first valve, third valve, the 4th valve Door, the 6th valve, the 8th valve and the 9th valve are opened, the second valve, the 5th valve, the 7th valve, the tenth valve, the tenth One valve, the 12nd valve and the 13rd valve are turned off, and open end water circulating pump, close secondary cycle pump, heat pump, low Warm land source side water pump and middle water pump;
The third, solar energy indirect heating heat pump heating mode: when heating hot water storage tank outlet temperature T lower than setting it is straight For start-up temperature Td, and when being higher than the maximum operating temperature Th of heat pump, at this point, the first valve, third valve, the 4th valve, the Five valves, the 7th valve, the tenth valve, the 12nd valve and the 13rd valve are opened, the second valve, the 6th valve, the 8th Valve, the 9th valve and the 11st valve are turned off, and open Low Temperature Thermal land source side water pump, end water circulating pump, middle water pump, secondary Circulating pump and heat pump, the hot water to heat in hot water storage tank transfer heat to low-temperature heat source by First Heat Exchanger, promote low temperature Heat source water enters the temperature of the water in heat pump, is heated by heat pump to user;
4th kind, solar energy series connection heat pump heating mode: when heating hot water storage tank outlet temperature T is higher than low-temperature heat source temperature Tw and be lower than heat pump maximum operating temperature Th when, at this point, the first valve, third valve, the 4th valve, the 6th valve, the tenth One valve, the 12nd valve and the 13rd valve are opened, the second valve, the 5th valve, the 7th valve, the 8th valve, the 9th Valve and the tenth valve are turned off, and open end water circulating pump, heat pump and middle water pump, close Low Temperature Thermal land source side water pump and secondary Circulating pump, the hot water in the hot water storage tank that heats are directly entered heat pump and exchange heat, improves the water temperature for entering heat pump, pass through heat pump pair User heats;
5th kind, the independent heating mode of heat pump: when heating hot water storage tank outlet temperature T is lower than the temperature Tw of low-temperature heat source When, at this point, the first valve, third valve, the 5th valve, the 7th valve, the 12nd valve and the 13rd valve are opened, second Valve, the 4th valve, the 6th valve, the 8th valve, the 9th valve, the tenth valve and the 11st valve are turned off, and open low temperature Heat source side water pump, end water circulating pump, secondary cycle pump and heat pump, close middle water pump, and system stops from heating hot water storage tank Heat is taken, at this time heat pump isolated operation, the heat that heat pump extracts is from low-temperature heat source.
The present invention achieves following technical effect compared with the existing technology:
Solar energy Coupling Water-source Heat Pump heat supply heating system and application method in the present invention, primary structure includes solar energy Heat collector, domestic hot-water's hot water storage tank, heating hot water storage tank, heat pump, First Heat Exchanger, the second heat exchanger, Low Temperature Thermal source water Pump, heat-collecting pump, middle water pump, low-temperature heat source and and controller;Pass through the unlatching of each valve and pump in controller control system And closing, it is capable of forming different heating modes, to make full use of solar energy while provide domestic hot-water and heating for user.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of solar energy Coupling Water-source Heat Pump heat supply heating system of the present invention;
Fig. 2 is solar energy direct heating mould in the application method of solar energy Coupling Water-source Heat Pump heat supply heating system of the present invention The structural schematic diagram of formula;
Fig. 3 is solar energy indirect heating heat in the application method of solar energy Coupling Water-source Heat Pump heat supply heating system of the present invention Pump the structural schematic diagram of heating mode;
Fig. 4 is that solar energy series connection heat pump supplies in the application method of solar energy Coupling Water-source Heat Pump heat supply heating system of the present invention The structural schematic diagram of warm mode;
Fig. 5 is the independent heating mode of heat pump in the application method of solar energy Coupling Water-source Heat Pump heat supply heating system of the present invention Structural schematic diagram.
Description of symbols: 1, solar thermal collector;2, domestic hot-water's hot water storage tank;3, heat hot water storage tank;4, heat pump; 5A, First Heat Exchanger;5B, the second heat exchanger;6, electrical auxiliary heater;7, Low Temperature Thermal land source side water pump;8, end water circulating pump;9, Heat-collecting pump;10, middle water pump;11, secondary cycle pumps;12, low-temperature heat source;13A, the first valve;13B, the second valve;13C, Three valves;13D, the 4th valve;13E, the 5th valve;13F, the 6th valve;13G, the 7th valve;13H, the 8th valve;13I, 9th valve;13J, the tenth valve;13K, the 11st valve;13L, the 12nd valve;13M, the 13rd valve.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
Embodiment one:
As shown in Figure 1, the present embodiment provides a kind of 4 heat supply heating system of solar energy Coupling Water-source Heat Pump, including solar energy Heat collector 1, domestic hot-water's hot water storage tank 2, heating hot water storage tank 3, heat pump 4, First Heat Exchanger 5A, the second heat exchanger 5B, low temperature Heat source side water pump 7, heat-collecting pump 9, middle water pump 10, low-temperature heat source 12 and and controller.
First water inlet of the major cycle water out of the solar thermal collector 1 and domestic hot-water's hot water storage tank 2 is logical The first pipeline is crossed to be connected, the first water outlet of domestic hot-water's hot water storage tank 2 and it is described heating hot water storage tank 3 second into The mouth of a river is connected by the second pipeline, and the master of the second water outlet and the solar thermal collector 1 of the heating hot water storage tank 3 follows Ring water inlet is connected by third pipeline;The major cycle water out and the major cycle water inlet are in the solar energy heating The inside of device 1 is connected;The inside phase of first water inlet and first water outlet in domestic hot-water's hot water storage tank 2 Connection;Second water inlet is connected with second water outlet in the inside of the heating hot water storage tank 3;The heat pump 4 Third water inlet be connected with the 4th water outlet of the First Heat Exchanger 5A by the 5th pipeline, the First Heat Exchanger 5A The 4th water inlet be connected with the 5th water outlet of the second heat exchanger 5B by the 6th pipeline, the second heat exchanger 5B The 5th water inlet be connected with the third water outlet of the heat pump 4 by the 7th pipeline;The third water inlet and described the Three water outlets are connected in the inside of the heat pump 4;4th water outlet and the 4th water inlet are in first heat exchange The inside of device 5A is connected;5th water outlet is connected with the 5th water inlet in the inside of the second heat exchanger 5B It is logical;6th water outlet of the heat pump 4 is connected with heating user by the 8th pipeline;6th water inlet of the heat pump 4 with Heating user is connected by the 9th pipeline;The inside phase of 6th water outlet and the 6th water inlet in the heat pump 4 Connection;The 7th water inlet and the 7th water outlet of the second heat exchanger 5B is connected with the low-temperature heat source 12;Described Seven water inlets are connected with the 7th water outlet in the inside of the second heat exchanger 5B;7th water inlet with it is described low The Low Temperature Thermal land source side water pump 7 is provided between temperature-heat-source 12;The 8th water outlet of the First Heat Exchanger 5A and the heating 9th water inlet of hot water storage tank 3 is connected by the tenth pipeline, the 8th water inlet of the First Heat Exchanger 5A and the confession 9th water outlet of warm hot water storage tank 3 is connected by the 11st pipeline;The intermediate water is provided on 11st pipeline Pump 10;9th water outlet is connected with the 8th pipeline by the 12nd pipeline;8th water outlet and described the Eight water inlets are connected in the inside of the First Heat Exchanger 5A;9th water outlet and the 9th water inlet are in the confession The inside of warm hot water storage tank 3 is connected;8th water outlet is connected with the 7th pipeline by the 13rd pipeline;It is described 7th pipeline is connected with the 9th pipeline by the 14th pipeline;Between 5th pipeline and the 11st pipeline also It is provided with the 15th pipeline, is provided with the 13rd valve 13M on the 15th pipeline;The master of the solar thermal collector 1 follows The 4th pipeline is additionally provided between ring water out and the second water inlet of the heating hot water storage tank 3;It is set on 4th pipeline It is equipped with the first valve 13A;It is provided with the second valve 13B on first pipeline, is provided with third valve on the third pipeline 13C is provided with the 4th valve 13D on the tenth pipeline, is provided with the 5th valve 13E on the 6th pipeline, and the described tenth It is provided with the 6th valve 13F on three pipelines, the 7th valve 13G is provided on the 7th pipeline, is set on the 14th pipeline It is equipped with the 8th valve 13H, the 9th valve 13I is provided on the 12nd pipeline, is provided with the tenth on the 11st pipeline Valve 13J is provided with the 11st valve 13K on the 15th pipeline, is provided with the 12nd valve on the 8th pipeline 13L is provided with the 13rd valve 13M on the 9th pipeline;The controller is for controlling the first valve 13A, described Second valve 13B, the third valve 13C, the 4th valve 13D, the 5th valve 13E, the 6th valve 13F, The 7th valve 13G, the 8th valve 13H, the 9th valve 13I, the tenth valve 13J, the 11st valve The opening and closing of door 13K, the 12nd valve 13L, the 13rd valve 13M;The controller and the heat pump 4, The Low Temperature Thermal land source side water pump 7, the heat-collecting pump 9 and the middle water pump 10 are electrically connected.
An end water circulating pump 8 is provided on 8th pipeline, the end water circulating pump 8 is electrically connected with the controller It connects.
Water supply pipe and user's hot-water line are additionally provided on domestic hot-water's hot water storage tank 2.
Be additionally provided with electrical auxiliary heater 6 on domestic hot-water's hot water storage tank 2, the electrical auxiliary heater 6 with it is described Controller electrical connection.
Secondary cycle pump 11 is provided on 6th pipeline, the secondary cycle pump 11 is electrically connected with the controller.
First water outlet and second water outlet are provided with temperature sensor, the temperature sensor and institute State controller electrical connection.
The present embodiment also provides a kind of application method of above-mentioned 4 heat supply heating system of solar energy Coupling Water-source Heat Pump, including Five kinds of operational modes below:
The first, solar energy directly heat domestic hot-water's mode: the water outlet of the first water outlet of domestic hot-water's hot water storage tank 2 When temperature is lower than the setting leaving water temperature of domestic hot-water's hot water storage tank 2, the first valve 13A is closed, opens the second valve 13B and the Three valve 13C, open heat-collecting pump 9, and system directly utilizes the water in 1 heating domestic hot water's hot water storage tank 2 of solar thermal collector, is Hot water user provides domestic hot-water;
Second, solar energy direct heating mode: as shown in Fig. 2, when the second water outlet water temperature T of heating hot water storage tank 3 Higher than setting direct-furnish start-up temperature Td when, system is directly heated using solar water, at this point, the first valve 13A, Three valve 13C, the 4th valve 13D, the 6th valve 13F, the 8th valve 13H and the 9th valve 13I are opened, the second valve 13B, 5th valve 13E, the 7th valve 13G, the tenth valve 13J, the 11st valve 13K, the 12nd valve 13L and the 13rd valve 13M is turned off, and opens end water circulating pump 8, closes secondary cycle pump 11, heat pump 4, Low Temperature Thermal land source side water pump 7 and intermediate water Pump 10;
The third, 4 heating mode of solar energy indirect heating heat pump: as shown in figure 3, when heating 3 outlet temperature T of hot water storage tank Lower than the direct-furnish start-up temperature Td of setting, but be higher than heat pump 4 maximum operating temperature Th when, heat hot water storage tank 3 in hot water Heating user side is directly transferred heat to without the evaporator in heat pump 4, at this point, the first valve 13A, third valve 13C, the 4th valve 13D, the 5th valve 13E, the 7th valve 13G, the tenth valve 13J, the 12nd valve 13L and the 13rd valve 13M is opened, and the second valve 13B, the 6th valve 13F, the 8th valve 13H, the 9th valve 13I and the 11st valve 13K are closed It closes, opens Low Temperature Thermal land source side water pump 7, end water circulating pump 8, middle water pump 10, secondary cycle pump 11 and heat pump 4, heat accumulation of heat Hot water in water tank 3 transfers heat to low-temperature heat source 12 by First Heat Exchanger 5A, promotes 12 water of low-temperature heat source and enters heat pump 4 In water temperature, heated by heat pump 4 to user;
4th kind, solar energy series connection 4 heating mode of heat pump: as shown in figure 4, when heating 3 outlet temperature T of hot water storage tank is higher than 12 temperature Tw of low-temperature heat source and when being lower than the maximum operating temperature Th of heat pump 4, at this point, the first valve 13A, third valve 13C, the Four valve 13D, the 6th valve 13F, the 11st valve 13K, the 12nd valve 13L and the 13rd valve 13M are opened, the second valve Door 13B, the 5th valve 13E, the 7th valve 13G, the 8th valve 13H, the 9th valve 13I and the tenth valve 13J are turned off, and are opened End water circulating pump 8, heat pump 4 and middle water pump 10 close Low Temperature Thermal land source side water pump 7 and secondary cycle pump 11, and heat accumulation of heat water Hot water in case 3 is directly entered heat pump 4 and exchanges heat, and improves the water temperature for entering heat pump 4, is heated by heat pump 4 to user;
5th kind, the independent heating mode of heat pump 4: as shown in figure 5, when heating 3 outlet temperature T of hot water storage tank is lower than Low Temperature Thermal When the temperature Tw in source 12, at this point, the first valve 13A, third valve 13C, the 5th valve 13E, the 7th valve 13G, the 12nd valve Door 13L and the 13rd valve 13M is opened, the second valve 13B, the 4th valve 13D, the 6th valve 13F, the 8th valve 13H, the Nine valve 13I, the tenth valve 13J and the 11st valve 13K are turned off, open Low Temperature Thermal land source side water pump 7, end water circulating pump 8, Secondary cycle pump 11 and heat pump 4 close middle water pump 10, and system stops taking heat from heating hot water storage tank 3, and heat pump 4 is independent at this time Operation, the heat that heat pump 4 extracts is from low-temperature heat source 12.
It should be noted that when using the first i.e. solar energy directly heats domestic hot-water's mode when, system specifically uses Which kind of heating mode, the second water outlet water temperature T depending on the hot water storage tank 3 that heats;And needing 6 pairs of electrical auxiliary heater lives When hot water hot water storage tank 2 carries out auxiliary heating, the second valve 13B is in close state, the hot water after the heating of electrical auxiliary heater 6 It is used only for hot water user.
Apply that a specific example illustrates the principle and implementation of the invention in this specification, above embodiments Explanation be merely used to help understand method and its core concept of the invention;At the same time, for those skilled in the art, According to the thought of the present invention, there will be changes in the specific implementation manner and application range.In conclusion in this specification Appearance should not be construed as limiting the invention.

Claims (3)

1. a kind of solar energy Coupling Water-source Heat Pump heat supply heating system, which is characterized in that including solar thermal collector, domestic hot-water Hot water storage tank, heating hot water storage tank, heat pump, First Heat Exchanger, the second heat exchanger, Low Temperature Thermal land source side water pump, heat-collecting pump, intermediate water Pump, low-temperature heat source and controller;
First water inlet of the major cycle water out of the solar thermal collector and domestic hot-water's hot water storage tank passes through first Pipeline is connected, and the first water outlet of domestic hot-water's hot water storage tank and the second water inlet of the heating hot water storage tank pass through Second pipeline is connected, and the second water outlet of the heating hot water storage tank and the major cycle water inlet of the solar thermal collector are logical Third pipeline is crossed to be connected;
The major cycle water out is connected with the major cycle water inlet in the inside of the solar thermal collector;Described first Water inlet is connected with first water outlet in the inside of domestic hot-water's hot water storage tank;Second water inlet with it is described Second water outlet is connected in the inside of the heating hot water storage tank;
The third water inlet of the heat pump is connected with the 4th water outlet of the First Heat Exchanger by the 5th pipeline, and described 4th water inlet of one heat exchanger is connected with the 5th water outlet of second heat exchanger by the 6th pipeline, and described second changes 5th water inlet of hot device is connected with the third water outlet of the heat pump by the 7th pipeline;
The third water inlet is connected with the third water outlet in the inside of the heat pump;4th water outlet with it is described 4th water inlet is connected in the inside of the First Heat Exchanger;5th water outlet and the 5th water inlet are described the The inside of two heat exchangers is connected;
6th water outlet of the heat pump is connected with heating user by the 8th pipeline;6th water inlet of the heat pump and confession Warm user is connected by the 9th pipeline;
6th water outlet is connected with the 6th water inlet in the inside of the heat pump;
The 7th water inlet and the 7th water outlet of second heat exchanger are connected with the low-temperature heat source;7th water inlet Mouth is connected with the 7th water outlet in the inside of second heat exchanger;7th water inlet and the low-temperature heat source it Between be provided with the Low Temperature Thermal land source side water pump;
8th water outlet of the First Heat Exchanger is connected with the 9th water inlet of the heating hot water storage tank by the tenth pipeline Logical, the 8th water inlet of the First Heat Exchanger is connected with the 9th water outlet of the heating hot water storage tank by the 11st pipeline It is logical;The middle water pump is provided on 11st pipeline;9th water outlet and the 8th pipeline pass through the 12nd Pipeline is connected;
8th water outlet is connected with the 8th water inlet in the inside of the First Heat Exchanger;9th water outlet It is connected with the 9th water inlet in the inside of the heating hot water storage tank;
8th water outlet is connected with the 7th pipeline by the 13rd pipeline;7th pipeline and the 9th pipe Road is connected by the 14th pipeline;
It is additionally provided with the 15th pipeline between 5th pipeline and the 11st pipeline, is provided on the 15th pipeline 13rd valve;
It is additionally provided between the major cycle water out of the solar thermal collector and the second water inlet of the heating hot water storage tank 4th pipeline;The first valve is provided on 4th pipeline;
It is provided with the second valve on first pipeline, is provided with third valve on the third pipeline, on the tenth pipeline It is provided with the 4th valve, the 5th valve is provided on the 6th pipeline, is provided with the 6th valve on the 13rd pipeline, institute It states and is provided with the 7th valve on the 7th pipeline, the 8th valve is provided on the 14th pipeline, is set on the 12nd pipeline It is equipped with the 9th valve, the tenth valve is provided on the 11st pipeline, is provided with the 11st valve on the 15th pipeline, It is provided with the 12nd valve on 8th pipeline, is provided with the 13rd valve on the 9th pipeline;
The controller is for controlling first valve, second valve, the third valve, the 4th valve, institute State the 5th valve, the 6th valve, the 7th valve, the 8th valve, the 9th valve, the tenth valve, The opening and closing of 11st valve, the 12nd valve, the 13rd valve;
The controller is electrically connected with the heat pump, the Low Temperature Thermal land source side water pump, the heat-collecting pump and the middle water pump;
An end water circulating pump is provided on 8th pipeline, the end water circulating pump is electrically connected with the controller;
Electrical auxiliary heater, the electrical auxiliary heater and controller electricity are additionally provided on domestic hot-water's hot water storage tank Connection;
Secondary cycle pump is provided on 6th pipeline, the secondary cycle pump is electrically connected with the controller;
First water outlet and second water outlet are provided with temperature sensor, the temperature sensor and the control Device electrical connection processed.
2. solar energy Coupling Water-source Heat Pump heat supply heating system according to claim 1, which is characterized in that the life heat Water supply pipe and user's hot-water line are additionally provided on water hot water storage tank.
3. a kind of application method of the described in any item solar energy Coupling Water-source Heat Pump heat supply heating systems of claim 1-2, It is characterized in that, including following five kinds of operational modes:
The first, solar energy directly heat domestic hot-water's mode: the leaving water temperature of the first water outlet of domestic hot-water's hot water storage tank Lower than domestic hot-water's hot water storage tank setting leaving water temperature when, close the first valve, open the second valve and third valve, open Heat-collecting pump, system directly utilize the water in solar thermal collector heating domestic hot water's hot water storage tank, and for hot water, user provides life Hot water;
Second, solar energy direct heating mode: when the direct-furnish that the second water outlet water temperature T of heating hot water storage tank is higher than setting is opened When dynamic temperature Td, system is directly heated using solar water, at this point, the first valve, third valve, the 4th valve, Six valves, the 8th valve and the 9th valve are opened, the second valve, the 5th valve, the 7th valve, the tenth valve, the 11st valve Door, the 12nd valve and the 13rd valve are turned off, and open end water circulating pump, close secondary cycle pump, heat pump, Low Temperature Thermal Land source side water pump and middle water pump;
The third, solar energy indirect heating heat pump heating mode: when heating hot water storage tank outlet temperature T lower than setting direct-furnish open Dynamic temperature Td, but be higher than heat pump maximum operating temperature Th when, at this point, the first valve, third valve, the 4th valve, the 5th valve Door, the 7th valve, the tenth valve, the 12nd valve and the 13rd valve are opened, the second valve, the 6th valve, the 8th valve, 9th valve and the 11st valve are turned off, and open Low Temperature Thermal land source side water pump, end water circulating pump, middle water pump, secondary cycle Pump and heat pump, the hot water to heat in hot water storage tank transfer heat to low-temperature heat source by First Heat Exchanger, promote low-temperature heat source Water enters the temperature of the water in heat pump, is heated by heat pump to user;
4th kind, solar energy connect heat pump heating mode: when heating hot water storage tank outlet temperature T be higher than low-temperature heat source temperature Tw and Lower than heat pump maximum operating temperature Th when, at this point, the first valve, third valve, the 4th valve, the 6th valve, the 11st valve Door, the 12nd valve and the 13rd valve are opened, the second valve, the 5th valve, the 7th valve, the 8th valve, the 9th valve It is turned off with the tenth valve, opens end water circulating pump, heat pump and middle water pump, close Low Temperature Thermal land source side water pump and secondary cycle It pumps, the hot water in the hot water storage tank that heats is directly entered heat pump and exchanges heat, and the water temperature for entering heat pump is improved, by heat pump to user It heats;
5th kind, the independent heating mode of heat pump: when the hot water storage tank outlet temperature T that heats is lower than the temperature Tw of low-temperature heat source, this When, the first valve, third valve, the 5th valve, the 7th valve, the 12nd valve and the 13rd valve are opened, the second valve, 4th valve, the 6th valve, the 8th valve, the 9th valve, the tenth valve and the 11st valve are turned off, and open Low Temperature Thermal source Water pump, end water circulating pump, secondary cycle pump and heat pump close middle water pump, and system stops taking heat from heating hot water storage tank, this When heat pump isolated operation, heat pump extract heat from low-temperature heat source.
CN201810603232.4A 2018-06-12 2018-06-12 A kind of solar energy Coupling Water-source Heat Pump heat supply heating system and application method Expired - Fee Related CN108644866B (en)

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