CN105811877A - Multi-stage heat-exchange type photovoltaic photo-thermal combined supply system - Google Patents

Multi-stage heat-exchange type photovoltaic photo-thermal combined supply system Download PDF

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Publication number
CN105811877A
CN105811877A CN201610151820.XA CN201610151820A CN105811877A CN 105811877 A CN105811877 A CN 105811877A CN 201610151820 A CN201610151820 A CN 201610151820A CN 105811877 A CN105811877 A CN 105811877A
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CN
China
Prior art keywords
heat
photovoltaic
solar energy
heat exchanger
evaporator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610151820.XA
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Chinese (zh)
Inventor
高原
邓斌
杨亮
陈文卿
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SUZHOU DAMEI ENERGY SAVING TECHNOLOGY Co Ltd
Original Assignee
SUZHOU DAMEI ENERGY SAVING TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to CN201610151820.XA priority Critical patent/CN105811877A/en
Publication of CN105811877A publication Critical patent/CN105811877A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-RED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/40Thermal components
    • H02S40/42Cooling means
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-RED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/40Thermal components
    • H02S40/44Means to utilise heat energy, e.g. hybrid systems producing warm water and electricity at the same time
    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/60Thermal-PV hybrids

Abstract

The invention discloses a multi-stage heat-exchange type photovoltaic photo-thermal combined supply system. The system comprises a solar energy collection plate, a first circulating pump, a heat storage box with a heat-exchange pipe, and a dual-evaporator heat pump which are connected into a closed loop through a pipeline; the dual-evaporator heat pump comprises a compressor, a condenser, a throttling part, an air source evaporator and a water source evaporator which are successively connected into a closed loop through a pipeline; and a branch, which is equipped with a bypass valve and connected with the outlet of the throttling part, is arranged at the outlet of the compressor. The multi-stage heat-exchange type photovoltaic photo-thermal combined supply system has the beneficial effects as follows: (1) due to the photo-thermal composite type solar energy collection plate, the photovoltaic power generation can be realized; in addition, water or other liquid can be heated through the heat energy accumulated by the collection plate; (2) due to the dual-evaporator heat pump, the heat energy can be further absorbed, the temperature of the photovoltaic panel can be lowered, the photovoltaic power generation efficiency can be improved, and the service life of the photovoltaic assembly can be ensured; and (3) the normal operation of the dual-evaporator heat pump can be realized through power supply from a power grid without sunshine, so that hot water supply can be ensured.

Description

A kind of multi-stage heat exchanger type photovoltaic and photothermal co-feeding system
Technical field
The present invention relates to technical field of photovoltaic power generation, particularly relate to a kind of multi-stage heat exchanger type photovoltaic and photothermal co-feeding system.
Background technology
Single solar cell can not directly do power supply and use.Make power supply to be connected by some cell series and parallels and tightly be packaged into assembly.It is the core in solar power system that photovoltaic module (is also solar panel), is also most important part in solar power system.Its effect is to convert solar energy into electrical energy, and is sent in accumulator and stores, or promotes loaded work piece.
The application mode of current solar energy mainly has two kinds, and one is photovoltaic generation, and one is solar thermal utilization.The efficiency comparison of photovoltaic generation is low, and only about about 20%, remaining energy majority exists with the form of heat energy.Photovoltaic generation is no advantage by the high temperature heat that photovoltaic panel surface is put aside, and can reduce the efficiency of photovoltaic generation on the contrary.
Still further aspect, if these heat energy are guided and utilized, except improving the efficiency of photovoltaic generation, it is also possible to increase the value of solar thermal utilization on photovoltaic generation basis, thus improving the overall utilization rate of solar energy.But prior art is but without relating to this series products.
Therefore prior art haves much room for improvement and develops.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of can fully absorb too can the heat put aside of collection plate to reduce photovoltaic panel temperature, improve photovoltaic efficiency, extend the multi-stage heat exchanger type photovoltaic and photothermal co-feeding system in photovoltaic module life-span.
The technical solution of the present invention is: a kind of multi-stage heat exchanger type photovoltaic and photothermal co-feeding system, and it includes the solar energy collecting plate being connected into the first loop by pipeline, the first circulating pump, with the heat storage tank of heat exchanger tube, and double-evaporator heat pump, air radiator;
Described double-evaporator heat pump includes the compressor being sequentially connected with and being formed the second loop by pipeline, condenser, throttle part, first vaporizer and the second vaporizer, one of them vaporizer is water source heat exchanger, and another vaporizer is air source heat exchanger, and two evaporator series connect;Described compressor outlet is provided with the pipeline connection throttle part outlet of bypass valve;
Heat storage tank is communicated with the 3rd loop of condenser, and this tertiary circuit is provided with the second circulating pump.
The pipeline in the first loop between described first circulating pump and described heat storage tank is provided with three-way valve, the branch road of three-way valve is connected on the pipeline between heat storage tank and double-evaporator heat pump, switched by the direction of three-way valve, realize connection heat storage tank in the first loop and skip the pipeline connection selection of heat storage tank.
Described solar energy collecting plate is made up of solar energy photovoltaic panel, metallic plate and metal tube;Together with the one side of metallic plate fits tightly with photovoltaic back, metallic plate another side is welded with metal tube.
Described solar energy collecting plate is made up of with heat pipe or heat exchanging chamber laminating solar energy photovoltaic panel, or fitted tightly the heat-conducting plate with heat pipe interlayer or heat exchanging chamber interlayer by solar energy photovoltaic panel backboard to constitute, or be directly furnished with heat pipe or heat exchanging chamber in the inside of photovoltaic panel backboard or backboard rear surface.
Described solar energy collecting plate is separately connected to inverter.
The operation material filled in second loop of described double-evaporator heat pump is cold-producing medium, and the operation material filled in other loops and branch road is water, aqueous solution, antifreezing agent or conduction oil.
Described first loop can be serially connected with air radiator, expansion drum, relief valve, sealant supplement cylinder;Second loop can be serially connected with gas-liquid separator, reservoir, oil point, electromagnetic valve, capillary tube.
Beneficial effects of the present invention:
(1) by thermoelectricity complex type solar collection plate, except realizing photovoltaic generation, it is also possible to utilize the heat energy that collection plate is put aside to add hot water or other liquid.
(2) heat energy can be absorbed further by double-evaporator heat pump, reduce photovoltaic panel temperature, improve the generating efficiency of photovoltaic, it is ensured that the life-span of photovoltaic module.
(3) double-evaporator heat pump can be powered maintenance normal operation by electrical network when not having sunlight, it is ensured that hot water supply.
Accompanying drawing explanation
Fig. 1 is frame structure schematic diagram of the present invention.
Description of reference numerals: 1, solar energy collecting plate;2, the first circulating pump;3, three-way valve;4, heat storage tank;5, double-evaporator heat pump;51, compressor;511, bypass solenoid valve;52, condenser;53, throttle part;54, the first vaporizer;55, the second vaporizer;6, air radiator;7, inverter;8, the second circulating pump.
Detailed description of the invention
Embodiment:
Consulting Fig. 1, a kind of multi-stage heat exchanger type photovoltaic and photothermal co-feeding system, it includes the solar energy collecting plate 1 being connected into the first loop by pipeline, the first circulating pump 2, the heat storage tank 4 with heat exchanger tube, and double-evaporator heat pump 5, air radiator 6;
Described double-evaporator heat pump 5 includes the compressor 51 being sequentially connected with and being formed the second loop by pipeline, condenser 52, throttle part 53, first vaporizer 54 and the second vaporizer 55, one of them vaporizer is water source heat exchanger, another vaporizer is air source heat exchanger, and two evaporator series connect;The outlet of described compressor 51 is provided with the pipeline connection throttle part 53 of bypass valve 511 and exports;
Heat storage tank 4 is communicated with the 3rd loop of condenser 52, and this tertiary circuit is provided with the second circulating pump 8.
Pipeline between first circulating pump 2 and heat storage tank 4 is provided with three-way valve 3, and heat storage tank 4 is communicated with the 3rd branch road of the second vaporizer 55, and this three-way valve 3 also connects the 3rd branch road simultaneously.
Solar energy collecting plate 1 is made up of solar energy photovoltaic panel, metallic plate and metal tube;Together with the one side of metallic plate fits tightly with photovoltaic back, metallic plate another side is welded with metal tube.
Metal tube forms the version of single S shape pipe, single three-back-shaped serpentine pipe, many S shape pipes in parallel, the many three-back-shaped solenoids of parallel connection, many vertical pipes in parallel or plural parallel stage pipe at the metallic plate back side.
Solar energy collecting plate 1 is made up of with heat pipe or heat exchanging chamber laminating solar energy photovoltaic panel, in order to fully absorb heat energy produced by photovoltaic panel;Or fitted tightly the heat-conducting plate with heat pipe interlayer or heat exchanging chamber interlayer by solar energy photovoltaic panel backboard to constitute, or be directly furnished with heat pipe or heat exchanging chamber in the inside of photovoltaic panel backboard or backboard rear surface.
Charging refrigerant in pipeline, wherein the first vaporizer 54 is air source heat exchanger, and the second vaporizer 55 is water source heat exchanger,
Metal tube has inlet and outlet at the two ends of solar energy collecting plate 1.
Start double-evaporator heat pump 5 system when solar energy collecting plate 1 temperature of multi-stage heat exchanger type photovoltaic and photothermal co-feeding system is lower than heat storage tank 4 temperature and carry out two grades of heating.Now switching three-way valve 3, heat transferring medium is allowed to return to solar energy collecting plate 1 after double-evaporator heat pump 5 circulation line after directly entering the second vaporizer 55 heat release from three-way valve 3 without the heat exchanger tube in heat storage tank 4, do not start when there being sunlight or relatively the slow-speed of revolution opens the blower fan of air source heat exchanger better to reduce the temperature of solar heat-collection plate, it does not have start the blower fan of air heat exchanger during sunlight to increase heat transfer effect.
The pipe-line system of multi-stage heat exchanger type photovoltaic and photothermal co-feeding system is full of anti-icing fluid, water or aqueous solution, pipeline can also be in series with fluid infusion case, air bleeding valve, Pressure gauge, thermometer, stop valve, three-way valve 3, filter.
Solar energy collecting plate 1 is separately connected to inverter 7 and goes so that electric energy produced by solar energy collecting plate 1 stores in electric storage means by inverter 7 or drives electrical equipment to work or be delivered on electrical network by synchronizing mode.
Solar energy collecting plate 1 temperature of multi-stage heat exchanger type photovoltaic and photothermal co-feeding system starts the first circulating pump 2 when exceeding a certain design temperature, is delivered in heat storage tank 4 by the heat energy on solar energy collecting plate 1 by heat exchanger tube in heat storage tank 4;When the Temperature of Working flowing through air radiator 6 is higher than setting value, the electric motor starting of air radiator 6, allow the heat energy that working medium is carried be delivered in air, the Temperature of Working to ensure back solar energy collecting plate 1 is not too high.
In the description of this specification, specific features, structure, material or feature that the description of term " embodiment " etc. means in conjunction with this embodiment or example describe are contained at least one embodiment or the example of the present invention.In this manual, the schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiments or example.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.

Claims (7)

1. a multi-stage heat exchanger type photovoltaic and photothermal co-feeding system, it is characterised in that: it includes the solar energy collecting plate being connected into the first loop by pipeline, the first circulating pump, with the heat storage tank of heat exchanger tube, and double-evaporator heat pump, air radiator;
Described double-evaporator heat pump includes the compressor being sequentially connected with and being formed the second loop by pipeline, condenser, throttle part, first vaporizer and the second vaporizer, one of them vaporizer is water source heat exchanger, and another vaporizer is air source heat exchanger, and two evaporator series connect;Described compressor outlet is provided with the pipeline connection throttle part outlet of bypass valve;
Heat storage tank is communicated with the 3rd loop of condenser, and this tertiary circuit is provided with the second circulating pump.
2. multi-stage heat exchanger type photovoltaic and photothermal co-feeding system according to claim 1, it is characterized in that: the pipeline in the first loop between described first circulating pump and described heat storage tank is provided with three-way valve, the branch road of three-way valve is connected on the pipeline between heat storage tank and double-evaporator heat pump, switched by the direction of three-way valve, realize connection heat storage tank in the first loop and skip the pipeline connection selection of heat storage tank.
3. multi-stage heat exchanger type photovoltaic and photothermal co-feeding system according to claim 1, it is characterised in that: described solar energy collecting plate is made up of solar energy photovoltaic panel, metallic plate and metal tube;Together with the one side of metallic plate fits tightly with photovoltaic back, metallic plate another side is welded with metal tube.
4. multi-stage heat exchanger type photovoltaic and photothermal co-feeding system according to claim 1, it is characterized in that: described solar energy collecting plate is made up of with heat pipe or heat exchanging chamber laminating solar energy photovoltaic panel, or fitted tightly the heat-conducting plate with heat pipe interlayer or heat exchanging chamber interlayer by solar energy photovoltaic panel backboard to constitute, or be directly furnished with heat pipe or heat exchanging chamber in the inside of photovoltaic panel backboard or backboard rear surface.
5. multi-stage heat exchanger type photovoltaic and photothermal co-feeding system according to claim 1, it is characterised in that: described solar energy collecting plate is separately connected to inverter.
6. multi-stage heat exchanger type photovoltaic and photothermal co-feeding system according to claim 1, it is characterized in that: the operation material filled in the second loop of described double-evaporator heat pump is cold-producing medium, the operation material filled in other loops and branch road is water, aqueous solution, antifreezing agent or conduction oil.
7. multi-stage heat exchanger type photovoltaic and photothermal co-feeding system according to claim 1, it is characterised in that: described first loop can be serially connected with air radiator, expansion drum, relief valve, sealant supplement cylinder;Second loop can be serially connected with gas-liquid separator, reservoir, oil point, electromagnetic valve, capillary tube.
CN201610151820.XA 2016-03-17 2016-03-17 Multi-stage heat-exchange type photovoltaic photo-thermal combined supply system Pending CN105811877A (en)

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Application Number Priority Date Filing Date Title
CN201610151820.XA CN105811877A (en) 2016-03-17 2016-03-17 Multi-stage heat-exchange type photovoltaic photo-thermal combined supply system

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Application Number Priority Date Filing Date Title
CN201610151820.XA CN105811877A (en) 2016-03-17 2016-03-17 Multi-stage heat-exchange type photovoltaic photo-thermal combined supply system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110030731A (en) * 2019-04-29 2019-07-19 海宁奇瑞特光电有限公司 A kind of photovoltaic air energy double-purpose hot-water heating system

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Publication number Priority date Publication date Assignee Title
CN1828184A (en) * 2006-04-10 2006-09-06 浙江大学 Multifunctional solar-assisted heat pump system
CN201093684Y (en) * 2007-09-25 2008-07-30 广东万和集团有限公司 Multi-use heat pump device of built-in auxiliary heating module
CN201466045U (en) * 2009-07-03 2010-05-12 通威股份有限公司 System for improving solar energy utilization rate and power generation amount
CN201839236U (en) * 2010-10-11 2011-05-18 深圳市苏易泽科技有限公司 Solar electric heating composite component and electric heating composite system
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110030731A (en) * 2019-04-29 2019-07-19 海宁奇瑞特光电有限公司 A kind of photovoltaic air energy double-purpose hot-water heating system

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