CN111609568A - Building combined heat and power generation and humidity regulation system based on photovoltaic photo-thermal component - Google Patents

Building combined heat and power generation and humidity regulation system based on photovoltaic photo-thermal component Download PDF

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Publication number
CN111609568A
CN111609568A CN202010507090.9A CN202010507090A CN111609568A CN 111609568 A CN111609568 A CN 111609568A CN 202010507090 A CN202010507090 A CN 202010507090A CN 111609568 A CN111609568 A CN 111609568A
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China
Prior art keywords
photovoltaic
heat
heat exchanger
way valve
heating
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CN202010507090.9A
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Chinese (zh)
Inventor
姚剑
徐辉
陈道川
赵耀
代彦军
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Shanghai Jiaotong University
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Shanghai Jiaotong University
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Priority to CN202010507090.9A priority Critical patent/CN111609568A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
    • F24S20/20—Solar heat collectors for receiving concentrated solar energy, e.g. receivers for solar power plants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D11/00—Central heating systems using heat accumulated in storage masses
    • F24D11/02—Central heating systems using heat accumulated in storage masses using heat pumps
    • F24D11/0214—Central heating systems using heat accumulated in storage masses using heat pumps water heating system
    • F24D11/0221—Central heating systems using heat accumulated in storage masses using heat pumps water heating system combined with solar energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • 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
    • F24D19/02—Arrangement of mountings or supports for radiators
    • F24D19/0203—Types of supporting means
    • F24D19/0206—Tube shaped supports inserted into a wall
    • 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
    • F24D19/02—Arrangement of mountings or supports for radiators
    • F24D19/04—Arrangement of mountings or supports for radiators in skirtings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F3/1411—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S60/00—Arrangements for storing heat collected by solar heat collectors
    • F24S60/30—Arrangements for storing heat collected by solar heat collectors storing heat in liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B27/00—Machines, plants or systems, using particular sources of energy
    • F25B27/002—Machines, plants or systems, using particular sources of energy using solar energy
    • F25B27/005—Machines, plants or systems, using particular sources of energy using solar energy in compression type systems
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/40—Thermal components
    • H02S40/44—Means to utilise heat energy, e.g. hybrid systems producing warm water and electricity at the same time
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/60—Planning or developing urban green infrastructure
    • 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
    • Y02B10/10—Photovoltaic [PV]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/12—Hot water central heating systems using heat pumps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/60—Thermal-PV hybrids

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Signal Processing (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Photovoltaic Devices (AREA)

Abstract

The invention discloses a building cogeneration and humidity regulation system based on a photovoltaic photo-thermal component, which relates to the technical field of heat pumps and comprises a refrigerant circulation pipeline, a heat collection water tank circulation pipeline and a heating and energy storage humidity regulation circulation pipeline, wherein the refrigerant circulation pipeline comprises an electric power output component, a photovoltaic/photo-thermal component, a compressor, a first three-way valve, a second three-way valve, a first electromagnetic valve, a second electromagnetic valve, a first heat exchanger, a second heat exchanger and an electronic expansion valve; the first electromagnetic valve and the first heat exchanger and the first three-way valve and the second three-way valve are connected between the first three-way valve and the second three-way valve in parallel; the first heat exchanger is connected with the circulating pipeline of the heat collecting water tank; and the second heat exchanger is connected with the heating energy storage humidifying circulation pipeline. The invention can reduce energy consumption, has higher comprehensive efficiency, can be integrated with buildings, has small occupied area, and is suitable for popularization of renewable energy sources and green buildings.

Description

Building combined heat and power generation and humidity regulation system based on photovoltaic photo-thermal component
Technical Field
The invention relates to the technical field of heat pumps, in particular to a building cogeneration and humidity control system based on a photovoltaic photo-thermal component.
Background
The proportion of building energy consumption to the total terminal energy consumption of China's society is close to 1/3, and with the continuous improvement of urbanization level, building energy conservation is one of the fields with most energy-saving potential in the future of China. In building energy consumption, the main energy consumption is electric power, heating and dehumidification, so how to effectively realize self supply of building energy and low-energy heating and humidifying becomes a new development direction. At present, most of building heating is gas or coal as raw materials, the problems of carbon emission and environmental pollution caused by the gas or the coal are serious, and most of building humidifying is an air conditioner or a dehumidifying/humidifying device, so that the power consumption is large. For energy-saving and efficient building heating, a photovoltaic/photo-thermal (PV/T) technology is proposed, solar energy is used as a clean heat source for heating, and power supply to a certain degree can be realized. At present, water-based photovoltaic/photo-thermal components are mainly used in the market, but the power generation efficiency and the heat collection efficiency of the water-based photovoltaic/photo-thermal components are lower than those of a photovoltaic/photo-thermal heat collection/evaporator using a refrigerant as a medium. Aiming at energy-saving building humidity control, a novel humidity control material is already active in the home market, but has the defect that the material cannot be actively regenerated. When the fabric is operated in a high-humidity environment for a period of time, the fabric is saturated due to limited moisture absorption capacity, and at the moment, the fabric cannot be regenerated by an active means and cannot absorb moisture continuously.
The invention aims to solve the technical problems of how to improve the utilization rate of solar energy, realize high-efficiency power generation and heat collection, realize indoor active and passive combined heat and humidity regulation and control, have low cost, attractive appearance and compact structure, and are suitable for being coupled with modern buildings to realize integration.
Therefore, the technical personnel in the field are dedicated to developing a building cogeneration and humidity control system based on a photovoltaic photo-thermal component, which can reduce energy consumption, has higher comprehensive efficiency, lower cost, compact structure, small occupied area and integration with the building, and is suitable for popularization of renewable energy sources and green buildings.
Disclosure of Invention
In view of the above defects in the prior art, the invention aims to solve the technical problems of how to improve the utilization rate of solar energy, realize efficient power generation and heat collection, realize indoor active and passive combined heat and humidity regulation and control, and realize low cost, attractive appearance and compact structure, and is suitable for being coupled with modern buildings to realize integration.
In order to achieve the purpose, the invention provides a building cogeneration and humidity control system based on a photovoltaic photo-thermal component, which comprises a refrigerant circulating pipeline, a heat collection water tank circulating pipeline and a heating energy storage humidity control circulating pipeline, wherein the refrigerant circulating pipeline comprises an electric power output component, a photovoltaic/photo-thermal component, a compressor, a first three-way valve, a second three-way valve, a first electromagnetic valve, a second electromagnetic valve, a first heat exchanger, a second heat exchanger and an electronic expansion valve; the power output is connected with the photovoltaic/photothermal assembly; the compressor and the electronic expansion valve are respectively arranged at two ends of the photovoltaic/photothermal component; the compressor is connected with the first three-way valve; the electronic expansion valve is connected with the second three-way valve; the first electromagnetic valve is connected with the first heat exchanger, the second electromagnetic valve is connected with the second heat exchanger, and the first electromagnetic valve and the first heat exchanger as well as the first three-way valve and the second three-way valve are connected in parallel between the first three-way valve and the second three-way valve; the first heat exchanger is connected with the circulating pipeline of the heat collecting water tank; the second heat exchanger is connected with the heating energy storage humidifying circulation pipeline, and the heating energy storage humidifying circulation pipeline comprises a heating energy storage humidifying wall.
Furthermore, the refrigerant circulating pipeline, the heat collecting water tank circulating pipeline and the heating energy storage humidifying circulating pipeline are all single circulating pipelines.
Further, the heat collection water tank circulating system comprises a heat collection water tank and a first pump, and the heat collection water tank is provided with a domestic hot water output device and a tap water replenishing device.
Furthermore, the heating energy storage humidifying circulation pipeline further comprises a second pump, and two ends of the heating energy storage humidifying wall body are respectively connected with the second heat exchanger and the second pump.
Furthermore, the heating energy storage humidifying wall comprises an outer wall vertical surface, an air layer, a main wall body, an inner wall vertical surface and a humidifying material layer; a heat supply coil is arranged inside the main wall body; the air layer is arranged between the outer wall facade and the main wall body; the inner wall vertical surface is arranged between the main wall body and the humidifying material layer.
Further, the heating coil is made of PE.
Further, the cross-section of the heating coil is circular.
Further, the photovoltaic/photothermal assembly is of a laminated structure and comprises a glass film, a photovoltaic cell, EVA (ethylene vinyl acetate) glue, an electric insulating layer, an inflatable heat collection/evaporator and a heat insulation material, and the photovoltaic/photothermal assembly is installed on the roof or the sun-facing outer vertical surface of a building.
Further, the roll-bond heat collection/evaporator is made of a roll-bond aluminum plate, one side of the roll-bond aluminum plate is a smooth plane, and the roll-bond aluminum plate is attached to a back plate of the photovoltaic cell.
Further, the other side of the blown aluminum plate is an expanded flow channel.
Compared with the prior art, the invention has the following advantages:
1. the photovoltaic/photothermal component adopted by the invention can realize more efficient cogeneration; the roll-bond type heat collection/evaporator is adopted to effectively reduce the temperature of the photovoltaic cell and improve the power generation efficiency, and the evaporation temperature of the refrigerant is lower than that of a water-based or air-based heat collector, so that the heat is collected more efficiently and the solar energy conversion rate is improved; the generated energy can be used for the electricity demand of the system and the residents, and the collected waste heat is used for regenerating domestic hot water and heating or humidity-regulating materials.
2. According to the heating energy storage humidifying wall body, the heating coil is buried in the wall body, hot water produced by the solar energy photovoltaic photo-thermal heat pump flows through the coil and transfers heat to the wall body, the wall body realizes indoor heating through thermal radiation, and compared with a traditional coal-fired or gas-fired boiler, the heating energy storage humidifying wall body achieves energy conservation and emission reduction, and a heat source is green and pollution-free solar energy.
3. According to the heating-energy storage-humidity adjusting wall body, heat is transferred into the wall body through the heating coil pipe, then energy is stored through heat capacity of the wall body, additional energy storage equipment is not needed, the floor area is greatly reduced, extra heat in the daytime can be stored into the wall body for continuous heating, conventional power consumption is reduced, and the stability of system operation is improved, so that economic popularization of the system is facilitated.
4. According to the heating energy storage humidifying wall body, the humidifying material is coated on the inner vertical surface of a building for passive humidifying, the humidifying material absorbs moisture when the indoor humidity is higher than the upper threshold value of the humidifying material, and the humidifying material releases moisture when the indoor humidity is lower than the lower threshold value of the humidifying material; when the indoor humidity is too high and the humidity adjusting material reaches a saturated state, the heating coil pipe provides heat to regenerate the humidity adjusting material, and active and passive indoor heat and humidity adjustment with low energy consumption is realized.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Drawings
FIG. 1 is a schematic diagram of a building cogeneration and humidity conditioning system based on photovoltaic and photothermal modules according to a preferred embodiment of the invention;
FIG. 2 is a schematic view of a heating energy storage humidifying wall;
the system comprises a power output unit 1, a compressor 2, a first three-way valve 3, a second electromagnetic valve 4, a first heat exchanger 5, a heat collection water tank 6, a domestic hot water output unit 7, a tap water replenishing unit 8, a heating energy storage humidity regulating wall 9, a photovoltaic/photothermal component 10, an electronic expansion valve 11, a second heat exchanger 12, a second pump 13, an outdoor heat and humidity transfer unit 14, an outer wall vertical surface 15, an air layer 16, a heat supply coil 17, a main wall 18, an inner wall vertical surface 19, a humidity regulating material layer 20, an indoor heat and humidity regulating and controlling unit 21, a first electromagnetic valve 22, a second three-way valve 23 and a first pump 24.
Detailed Description
The technical contents of the preferred embodiments of the present invention will be more clearly and easily understood by referring to the drawings attached to the specification. The present invention may be embodied in many different forms of embodiments and the scope of the invention is not limited to the embodiments set forth herein.
In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. The thickness of the components may be exaggerated where appropriate in the figures to improve clarity.
As shown in fig. 1 and 2, the photovoltaic/photothermal module 10 not only reduces the temperature of the photovoltaic cell to improve the power generation efficiency, but also increases the evaporation pressure and temperature of the refrigerant to improve the heat pump efficiency, thereby producing energy-saving and high-efficiency hot water; the heating energy storage humidifying wall body 9 can realize indoor active and passive coupling heat and humidity regulation, and the system integrates multiple functions of power generation, heat production, energy storage, humidifying and the like.
The building cogeneration and humidity control system based on the photovoltaic photo-thermal component comprises an electric power output 1, a compressor 2, a first three-way valve 3, a second three-way valve 23, a first electromagnetic valve 22, a second electromagnetic valve 4, a first heat exchanger 5, a heat collection water tank 6, a domestic hot water output device 7, a tap water replenishing device 8, a heating energy storage humidity control wall body 9, a photovoltaic/photo-thermal component 10, an electronic expansion valve 11, a second heat exchanger 12, a first pump 24 and a second pump 13. The heating energy storage humidity regulating wall 9 is composed of an outer wall vertical surface 15, an air layer 16, a heating coil 17, a main wall 18, an inner wall vertical surface 19 and a humidity regulating material layer 20. The system also comprises a refrigerant circulating pipeline, a heat collecting water tank circulating pipeline and a heating, energy storing and humidifying circulating pipeline. The refrigerant circulating pipeline is a photovoltaic photo-thermal heat pump circulating pipeline and is connected with the compressor 2, the first heat exchanger 5, the second heat exchanger 12, the electronic expansion valve 11 and the photovoltaic/photo-thermal assembly 10; the heat collection water tank circulation pipeline is a heat exchange pipeline for connecting the first heat exchanger 5 and the domestic heat collection water tank 6, and the heating energy storage humidity adjusting circulation pipeline is a heat exchange pipeline for connecting the second heat exchanger 12 and the heating energy storage humidity adjusting wall 9.
When the system normally works, the first electromagnetic valve 22 and the second electromagnetic valve 4 are both opened, the photovoltaic/photothermal component generates electricity and collects heat, the generated electricity is used by the system, if residual electricity exists, the electricity is output 1 and is supplied to a power grid. The heat of the photovoltaic cell backboard is collected through the photovoltaic/photothermal component 10, so that the temperature of the photovoltaic cell is reduced, the power generation efficiency is improved, and meanwhile, the waste heat is recovered, and the solar energy utilization rate is improved. The refrigerant exchanges heat with water in a circulating pipeline of the heat collection water tank 6 through the first heat exchanger 5, the heated water is stored in the heat collection water tank 6 through the first pump 24 and is used by domestic hot water, and the circulating pipeline requires that the water quality reaches the domestic water level; the refrigerant exchanges heat with water in the heating energy storage humidifying circulation pipeline through the second heat exchanger 12, the heated water enters the wall body heat supply coil 17 through the second pump 13, the temperature of the building vertical surface is raised through the heat transfer process, and radiation heating is achieved. At this time, the humidity control material 20 applied to the building facade is regenerated by heating the wall, thereby realizing indoor heat and humidity control 21. The presence of the air layer 16 can effectively reduce the outdoor heat and moisture transfer 14. Moreover, the heat capacity of the main wall 18 and the inner wall vertical surface 19 can store redundant heat to realize energy storage, and the heating is continuously carried out at the night without the sun, so that the occupied area is reduced, and the energy is saved and the environment is protected. In addition, the first electromagnetic valve 22 and the second electromagnetic valve 4 are used for controlling and adjusting the opening and closing of the first heat exchanger 5 and the second heat exchanger 12 through valves, so that the system can operate in three modes: a domestic hot water mode, a heating energy storage humidifying mode and a double-opening mode. The heating energy storage humidifying wall 9 is a building facade with an air layer 16, a humidifying material layer 20 and a heating coil 17; the air layer 16 can effectively reduce the outdoor heat and moisture transfer 14 between the building and the outside; the humidity control material layer 20 is coated on the building interior wall facade 19 for passive humidity control; the heating coil 17 is embedded in the main wall 18 to realize building integration.
This building combined heat and power and humidifying system based on photovoltaic light and heat subassembly can effectively improve the solar energy conversion rate. The system adopts a photovoltaic/photothermal component for efficient cogeneration, integrates the heat supply coil pipe and the humidity regulating material with the building, utilizes the heat capacity of the building for energy storage, greatly reduces the floor area and realizes the heat and humidity regulation and control of indoor active and passive coupling. The system has simple composition, is beneficial to building coupling, has high solar energy conversion rate and obvious energy conservation and emission reduction, and provides a new idea for the utilization and popularization of renewable energy sources and the development of green buildings.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims (10)

1. A building cogeneration and humidity control system based on a photovoltaic photo-thermal component comprises a refrigerant circulating pipeline, a heat collection water tank circulating pipeline and a heating energy storage humidity control circulating pipeline, and is characterized in that the refrigerant circulating pipeline comprises a power output component, a photovoltaic/photo-thermal component, a compressor, a first three-way valve, a second three-way valve, a first electromagnetic valve, a second electromagnetic valve, a first heat exchanger, a second heat exchanger and an electronic expansion valve; the power output is connected with the photovoltaic/photothermal assembly; the compressor and the electronic expansion valve are respectively arranged at two ends of the photovoltaic/photothermal component; the compressor is connected with the first three-way valve; the electronic expansion valve is connected with the second three-way valve; the first electromagnetic valve is connected with the first heat exchanger, the second electromagnetic valve is connected with the second heat exchanger, and the first electromagnetic valve and the first heat exchanger as well as the first three-way valve and the second three-way valve are connected in parallel between the first three-way valve and the second three-way valve; the first heat exchanger is connected with the circulating pipeline of the heat collecting water tank; the second heat exchanger is connected with the heating energy storage humidifying circulation pipeline, and the heating energy storage humidifying circulation pipeline comprises a heating energy storage humidifying wall.
2. The building cogeneration and humidity conditioning system based on photovoltaic and thermal assemblies as claimed in claim 1, wherein the refrigerant circulation pipeline, the heat collection water tank circulation pipeline and the heating, energy storage and humidity conditioning circulation pipeline are all single circulation pipelines.
3. The building cogeneration and humidity conditioning system based on photovoltaic and thermal components as claimed in claim 1, wherein said heat collection water tank circulation system comprises a heat collection water tank and a first pump, said heat collection water tank is provided with a domestic hot water output device and a tap water replenishing device.
4. The building cogeneration and heat generation and humidity control system based on photovoltaic and thermal assemblies as claimed in claim 1, wherein the heating, energy storage and humidity control circulation pipeline further comprises a second pump, and two ends of the heating, energy storage and humidity control wall are respectively connected with the second heat exchanger and the second pump.
5. The building cogeneration and heat generation and humidity control system based on photovoltaic and thermal assemblies as claimed in claim 1, wherein the heating, energy storage and humidity control wall comprises an outer wall facade, an air layer, a main wall, an inner wall facade and a humidity control material layer; a heat supply coil is arranged inside the main wall body; the air layer is arranged between the outer wall facade and the main wall body; the inner wall vertical surface is arranged between the main wall body and the humidifying material layer.
6. The building cogeneration and humidity conditioning system based on photovoltaic and thermal modules of claim 5, wherein said heating coil is PE.
7. The photovoltaic and thermal module-based building cogeneration and conditioning system of claim 5, wherein said heating coil is circular in cross-section.
8. The building cogeneration and conditioning system based on photovoltaic and thermal modules of claim 1, wherein said photovoltaic/thermal modules are laminated structures comprising glass film, photovoltaic cells, EVA glue, electrically insulating layer, inflatable collector/evaporator and thermal insulation material, and said photovoltaic/thermal modules are installed on the roof or the sunny facade of the building.
9. The photovoltaic and photothermal assembly based building cogeneration and conditioning system of claim 8 wherein said inflatable heat collector/evaporator is made of an inflated aluminum sheet, one side of said inflated aluminum sheet is a smooth flat surface, and said inflated aluminum sheet is attached to the back sheet of said photovoltaic cell.
10. The photovoltaic and photothermal assembly based building cogeneration and conditioning system of claim 9 wherein the other side of said blown aluminum sheet is an expanded flow channel.
CN202010507090.9A 2020-06-05 2020-06-05 Building combined heat and power generation and humidity regulation system based on photovoltaic photo-thermal component Pending CN111609568A (en)

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