CN213578160U - Solar energy comprehensive energy utilization system - Google Patents

Solar energy comprehensive energy utilization system Download PDF

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Publication number
CN213578160U
CN213578160U CN202022076378.3U CN202022076378U CN213578160U CN 213578160 U CN213578160 U CN 213578160U CN 202022076378 U CN202022076378 U CN 202022076378U CN 213578160 U CN213578160 U CN 213578160U
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CN
China
Prior art keywords
water
tank
cooling tank
water cooling
heat
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Expired - Fee Related
Application number
CN202022076378.3U
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Chinese (zh)
Inventor
李芮
苗继春
陈继录
赵兴安
张建新
张喜平
吴春
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China Datang Corp Renewable Power Co Ltd
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China Datang Corp Renewable Power Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/10—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
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/60—Thermal-PV hybrids

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  • Photovoltaic Devices (AREA)

Abstract

The utility model relates to a solar energy comprehensive energy utilization system, which comprises a concentrating photovoltaic power generation system and a concentrating photovoltaic photo-thermal system, wherein the concentrating photovoltaic power generation system comprises a battery component; the concentrating photovoltaic photo-thermal system comprises a heat collector and a water circulating system; the heat collector comprises a water cooling tank, the water cooling tank is connected with the heat dissipation surface of the battery assembly through heat conducting glue and is used for taking away heat generated by the battery assembly through the water cooling tank by cooling water flowing in the water cooling tank and recycling the heat; the water circulation system comprises a water tank arranged in a building, and a water outlet of the water cooling tank is connected with the water tank through a pipeline; the water tank is connected with the water inlet of the water cooling tank through a water pump and is used for conveying water in the water tank into the water cooling tank. The utility model discloses can provide a good reliability for high-power spotlight photovoltaic system, the radiating effect is good to can compromise the solar photovoltaic energy comprehensive utilization scheme of heat dissipation and heat utilization, can prolong spotlight photovoltaic system battery pack life-span and improve photovoltaic system energy utilization efficiency.

Description

Solar energy comprehensive energy utilization system
Technical Field
The utility model belongs to the technical field of solar energy, especially, relate to a solar energy comprehensive energy utilization system.
Background
The solar energy has the advantages of large storage capacity, wide distribution, greenness and cleanness, great utilization space and capability of embodying the advantages of the solar energy when energy crisis and environmental problems are widely concerned in the world. Photovoltaic power generation technology is continuously mature and perfected nowadays, but the manufacturing process of the common crystalline silicon battery is high in energy consumption and pollution and low in power generation efficiency. The concentrating photovoltaic power generation technology is a technology for collecting large-area sunlight to a small-area photovoltaic cell through a concentrating device to generate power, the using amount of the photovoltaic cell is greatly reduced, compared with the traditional photovoltaic cell, the using amount of the concentrating photovoltaic cell is reduced to 1/7000-1/10000, and the concentrating photovoltaic power generation technology is an important innovation for the photovoltaic power generation industry. However, concentrated photovoltaic cells generate a large amount of heat, which reduces the efficiency of the photovoltaic cells and even burns out the cells. Therefore, effective heat dissipation and battery surface temperature control are important ways for optimizing the system.
At present, a photovoltaic cell is cooled by adopting a passive cooling (air cooling) mode mostly in a concentrating photovoltaic system, the passive cooling is to cover an aluminum plate with a groove on the back surface of the concentrating photovoltaic cell, and when natural wind passes through the groove on the aluminum plate, heat emitted by the concentrating photovoltaic cell is taken away, so that the concentrating photovoltaic cell is cooled.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a solar energy comprehensive energy utilizes system, through at photovoltaic cell piece lower part installation basin, utilize the circulating water to carry out the initiative cooling to spotlight photovoltaic cell piece, the while heats the circulating water to supply with the user and use, with transmission and the conversion of realization spotlight photovoltaic cell hot side temperature control and waste heat.
The utility model provides a solar energy comprehensive energy utilization system, which comprises a concentrating photovoltaic power generation system and a concentrating photovoltaic photo-thermal system, wherein the concentrating photovoltaic power generation system comprises a battery component; the concentrating photovoltaic photo-thermal system comprises a heat collector and a water circulation system;
the heat collector comprises a water cooling tank, the water cooling tank is connected with the heat dissipation surface of the battery assembly through heat conduction glue and is used for taking away heat generated by the battery assembly through the water cooling tank by cooling water flowing in the water cooling tank and recycling the heat;
the water circulation system comprises a water tank arranged in a building, and a water outlet of the water cooling tank is connected with the water tank through a pipeline and used for providing hot water for a user through the water tank; the water tank is connected with a water inlet of the water cooling tank through a water pump and is used for sending water in the water tank into the water cooling tank.
Further, the upper surface of the battery pack is packaged by a frame and a glass cover plate, and an air layer is arranged between the glass cover plate and the upper surface of the battery pack.
Furthermore, the glass cover plate is plated with an antireflection film for reducing reflection and material absorption.
Further, the area of the water cooling groove is larger than that of the battery pack.
Further, the water cooling tank body is made of copper or aluminum.
Furthermore, the water cooling tank is of a double-path structure and is divided into a left path channel and a right path channel, and a water inlet of the water cooling tank is arranged in the middle of the water cooling tank body.
Further, the outer side of the water cooling groove is coated with a heat insulation coating.
Furthermore, the water tank is connected with a water replenishing pipeline and a water replenishing valve for replenishing water.
Furthermore, the water tank is a heat-preservation water tank, and a heat-insulation layer is coated on the outer wall of the pipeline from the water outlet of the water cooling tank to the water tank.
Further, the concentrating photovoltaic power generation system is a high-power concentrating photovoltaic power generation system.
By means of the scheme, the solar photovoltaic energy comprehensive utilization scheme which is good in reliability, good in heat dissipation effect and capable of giving consideration to heat dissipation and heat utilization can be provided for the high-power concentrating photovoltaic system through the solar comprehensive energy utilization system, the service life of a concentrating photovoltaic system cell assembly can be prolonged, and the energy utilization efficiency of the photovoltaic system can be improved.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made of preferred embodiments of the present invention.
Drawings
Fig. 1 is a schematic structural diagram of the solar integrated energy utilization system of the present invention;
FIG. 2 is a schematic structural view of the heat collector of the present invention;
FIG. 3 is a schematic structural view of the water cooling tank of the present invention;
fig. 4 is a schematic structural diagram of the water circulation system of the present invention.
Reference numbers in the figures:
1-a concentrating photovoltaic power generation system; 11-an inverter; 12-a tracking system; 13-a battery assembly;
21-a heat collector; 211-glass cover plate; 212-air layer; 213-heat conducting glue; 214-a water-cooled tank; 215-a frame; 216-thermal barrier coating; 221-a water tank; 222-Water Pump.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Referring to fig. 1 to 4, a solar energy comprehensive energy utilization system includes a concentrating photovoltaic power generation system 1 and a concentrating photovoltaic photo-thermal system, wherein the concentrating photovoltaic power generation system 1 includes a battery assembly 13; the concentrating photovoltaic photo-thermal system comprises a heat collector 21 and a water circulating system;
the heat collector 21 comprises a water cooling tank 214, the water cooling tank 214 is connected with the heat dissipation surface of the battery assembly 13 through a heat conducting glue 213, and is used for taking away heat generated by the battery assembly 13 through the water cooling tank 214 by cooling water flowing in the water cooling tank 214 and recovering the heat;
the water circulation system comprises a water tank 221 arranged in a building, and a water outlet of the water cooling tank 21 is connected with the water tank 221 through a pipeline and used for providing hot water for a user through the water tank 221; the water tank 221 is connected to the water inlet of the water cooling tank 214 through a water pump 222, and is used for feeding water in the water tank 221 into the water cooling tank 21.
Through this through solar energy comprehensive energy utilization system, can provide a good reliability for high-power spotlight photovoltaic system, the radiating effect is good to can compromise the solar photovoltaic energy comprehensive utilization scheme of heat dissipation and heat utilization, prolong spotlight photovoltaic system battery pack life-span and improve photovoltaic system energy utilization efficiency.
The present invention will be described in further detail below.
The solar cell aims at the problem that the concentrating photovoltaic cell is low in power generation efficiency in a high-temperature environment, and the service life of a cell piece is influenced by excessive heat generation. The embodiment provides a system for carrying out heat exchange by utilizing circulating water and battery pieces, which skillfully combines heat dissipation and heat utilization, utilizes a unique high-efficiency heat dissipation and heat recovery system, realizes the control of the temperature of the hot surface of a concentrating photovoltaic battery and the transfer and conversion of waste heat, provides a heat energy supply integrated solution for users by utilizing the recovered waste heat, can effectively reduce the unit investment cost, and can meet various requirements of the users.
The solar energy comprehensive energy utilization system is suitable for public buildings such as rural schools, hospitals and plants, users in remote rural and villa areas, islands, frontier stations, photovoltaic agriculture and the like. The system specifically comprises the following subsystems:
concentrating photovoltaic power generation system
Referring to fig. 1, the system adopts a 500-time high-concentration photovoltaic power generation system and comprises a concentration cell array, a frame body, an azimuth and elevation driver, a tracker, a controller and the like. The concentrating solar cell, the radiator and the Fresnel lens are fixed on the array support, the array support is very flat, the concentrating cells on the support are kept on the same plane and planes parallel to each other, and the solar cell array has the capability of resisting storm wind and lightning protection measures. The driver consists of an azimuth driving motor, an elevation driving motor and a reduction gear, the concentrating battery array adopts a high-precision tracking system, the double shafts automatically track, and the built-in software sets and starts the tracking angle value of the motor and other functions, such as day and night control, overcast and rainy control, cloud control, strong wind control and the like.
A concentrator cell module:
the concentrator cell module (cell module 13) is composed of a concentrator photovoltaic module, a bypass diode, a reflector, a concentrator, a heat sink, and a housing. The key part of the part uses a three-junction gallium arsenide cell.
The solar energy light-gathering mode adopts two-stage light gathering, the first-stage light gathering is refraction type light gathering, the solar energy light-gathering lens is manufactured by utilizing a Fresnel lens and utilizing the principle that light is refracted at interfaces of different media, and the solar energy light-gathering lens has the same effect as a common spherical lens. The lens is made of acrylic resin with good light transmission. The secondary mirror uses a stainless steel conical reflector to increase the light acceptance angle. The Fresnel lens with the large diameter can be made to be thin, the weight of the Fresnel lens can be greatly reduced compared with a spherical lens, and the Fresnel lens is also a main component of a concentrating battery module and has the characteristics of small volume, light weight, convenience in processing, high light transmittance and the like. The Fresnel lens focuses sunlight on one hand and also protects the cell assembly on the other hand.
A tracking system:
for better utilization of solar energy, the present embodiment is equipped with a tracking system 12. The sensor transmits signals to the controller to control the azimuth and elevation driver, so as to achieve the purpose of sun-chasing.
The solar sensor is a device for converting an angle signal of a condensing battery array normal line deviating from a solar ray into an electric signal, is an important component of a tracking system, and solves the tracking precision to a great extent. The solar sensor measures the direction of the sun, if the direction of the sun deviates, the battery array is aligned with the sun when the driving motor operates.
The wind sensor adopts an induction type device, when the wind power reaches a certain degree (such as 8-grade wind), the controller controls the elevation driving motor to operate, so that the array runs towards the horizontal direction until the stress of the array is minimum, and under the condition, the elevation driving motor is not controlled by the azimuth solar sensor.
The sunlight switch adopts a photosensitive device, so that the solar cell array is controlled by the azimuth solar sensor to rotate in the daytime; at night, the array is not controlled by the azimuth sun sensor, but is only controlled by the daylight switch to operate eastward, i.e., the array returns to the morning initial position.
An inverter system;
the system adopts 15kW group string type inverters 11, each independent concentrating photovoltaic unit is provided with one 15kW group string type inverter, and the group string type inverters have the multi-path MPPT function.
(II) concentrating photovoltaic photo-thermal system
The photo-thermal system utilizes high-temperature heat generated by the high-power concentrating photovoltaic system to generate solar hot water for a living area, the utilization level of solar comprehensive energy is improved, and meanwhile, heat can be dissipated to photovoltaic cells in the concentrating module through circulating water. The photo-thermal system comprises a heat collector and a water circulation system.
Referring to fig. 2, the heat collector 21 is mainly composed of a glass cover 211, an air layer 212, a heat conductive paste 213, a water cooling tank 214, and a frame 215. The upper surface of the battery module 13 is sealed by a frame 215 and a glass cover 211, and an air layer 212 is provided between the glass cover 211 and the upper surface of the battery module 13. The glass cover plate 211 is plated with an antireflection film to reduce reflection and material absorption, the glass layer (glass cover plate) can effectively prevent the battery chip from directly contacting with the external environment and protect the battery on one hand, and the glass layer (glass cover plate) can control heat exchange by matching with an air layer on the other hand, so that excessive heat loss from the upper surface is reduced; the battery assembly 13 is connected with the water cooling tank 214 by conductive adhesive, the heat of the battery assembly is taken away by cooling water flowing in the water cooling tank 214, the area of the water cooling tank 214 is slightly larger than that of the battery assembly, and part of light energy which does not irradiate the surface of the battery assembly 13 can be absorbed; the material of the water cooling tank 214 is copper or aluminum with higher heat conductivity, so that heat is better utilized; and the heat insulation coating 216 is coated outside the water cooling groove 214, so that the heat loss in the air is reduced to a certain extent.
Referring to fig. 3, the structure of the heat collector water cooling tank 214 adopts a two-way design, and the two ways are divided into a left way and a right way, so that the cooling effect is more uniform; because the central temperature of the battery chip is higher than the peripheral temperature due to the light convergence and the aberration, the cooling effect can be more obvious by arranging the water inlet in the middle of the tank body.
Referring to fig. 4, the water outlet of the water cooling tank 214 is connected with the water tank 221 in the building through a water pipe, the outer wall of the water cooling tank needs to be coated with a heat insulation layer, and the distance between the water cooling tank and the water tank is as short as possible, so that the temperature loss of water in the water cooling tank is reduced; the water tank 221 should have a heat preservation function, and is provided with two inlets and two outlets, wherein the inlets are respectively used for photovoltaic heat to enter by hot water and tap water, the tap water is used for supplementing when the water tank 221 is short of water, and a valve is arranged at the inlet, is in a long-term communication state and is closed only during installation and maintenance; one end of the outlet is connected with a shower head, a water faucet and other appliances for outputting life of a user, the other end of the outlet is connected with the water inlet of the water cooling tank 214 through a water pump 222, and water is guided into the photo-thermal system under the action of the water pump 222; the pipeline connected with the water pump section does not need to be insulated, the length can be properly increased, or a forced cooling device is added at a proper position.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (10)

1. The solar comprehensive energy utilization system is characterized by comprising a concentrating photovoltaic power generation system and a concentrating photovoltaic photo-thermal system, wherein the concentrating photovoltaic power generation system comprises a battery component; the concentrating photovoltaic photo-thermal system comprises a heat collector and a water circulation system;
the heat collector comprises a water cooling tank, the water cooling tank is connected with the heat dissipation surface of the battery assembly through heat conduction glue and is used for taking away heat generated by the battery assembly through the water cooling tank by cooling water flowing in the water cooling tank and recycling the heat;
the water circulation system comprises a water tank arranged in a building, and a water outlet of the water cooling tank is connected with the water tank through a pipeline and used for providing hot water for a user through the water tank; the water tank is connected with a water inlet of the water cooling tank through a water pump and is used for sending water in the water tank into the water cooling tank.
2. The system according to claim 1, wherein the upper surface of the battery module is encapsulated by a frame and a glass cover plate, and an air layer is provided between the glass cover plate and the upper surface of the battery module.
3. The solar energy integrated energy utilization system of claim 2, wherein the glass cover plate is coated with an antireflection film for reducing reflection and material absorption.
4. The solar energy integrated energy utilization system according to claim 1, wherein the water cooling groove has an area larger than that of the cell module.
5. The solar energy comprehensive energy utilization system as claimed in claim 1, wherein the water cooling tank body is made of copper or aluminum.
6. The solar energy comprehensive energy utilization system according to claim 1, wherein the water cooling tank is of a two-way structure and is divided into a left channel and a right channel, and a water inlet of the water cooling tank is arranged in the middle of the water cooling tank body.
7. The solar energy integrated power utilization system of claim 1, wherein the outside of the water cooling channel is coated with a thermal barrier coating.
8. The solar energy integrated energy utilization system according to claim 1, wherein the water tank is connected with a water replenishing pipeline and a water replenishing valve for replenishing water.
9. The solar energy comprehensive energy utilization system according to claim 1, wherein the water tank is a heat preservation water tank, and a heat insulation layer is coated on the outer wall of a pipeline from the water outlet of the water cooling tank to the water tank.
10. The solar energy integrated energy utilization system according to claim 1, wherein the concentrated photovoltaic power generation system is a high concentrated photovoltaic power generation system.
CN202022076378.3U 2020-09-21 2020-09-21 Solar energy comprehensive energy utilization system Expired - Fee Related CN213578160U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022076378.3U CN213578160U (en) 2020-09-21 2020-09-21 Solar energy comprehensive energy utilization system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022076378.3U CN213578160U (en) 2020-09-21 2020-09-21 Solar energy comprehensive energy utilization system

Publications (1)

Publication Number Publication Date
CN213578160U true CN213578160U (en) 2021-06-29

Family

ID=76576373

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022076378.3U Expired - Fee Related CN213578160U (en) 2020-09-21 2020-09-21 Solar energy comprehensive energy utilization system

Country Status (1)

Country Link
CN (1) CN213578160U (en)

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