CN204810228U - Solar photovoltaic power generation system's heat pump cooling heating system - Google Patents
Solar photovoltaic power generation system's heat pump cooling heating system Download PDFInfo
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- CN204810228U CN204810228U CN201520551701.4U CN201520551701U CN204810228U CN 204810228 U CN204810228 U CN 204810228U CN 201520551701 U CN201520551701 U CN 201520551701U CN 204810228 U CN204810228 U CN 204810228U
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- working medium
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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
- 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
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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
- 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
Abstract
The utility model discloses a solar photovoltaic power generation system's heat pump cooling heating system, including the solar photovoltaic board, set up in the working medium evaporimeter of solar photovoltaic board below, the working medium evaporimeter forms circulation circuit with tee bend switching -over valve, working medium compressor, working medium condenser, electronic expansion valve in proper order, is equipped with the working medium thermometer on the working medium evaporimeter, is equipped with the hot water temperature meter in the working medium condenser, and working medium thermometer, hot water temperature meter and electronic expansion valve are connected with the main control computer respectively. The utility model discloses when guaranteeing the best operating temperature of solar energy optoelectronic system, the cooling heat can be continued to retrieve and the heat supply is used for, make former systematic solar energy utilization ratio obtain very big improvement, reach the mode of annual best solar photovoltaic electricity generation operation, make the annual utilization ratio maxmizingization of solar energy, simultaneously usable heat pump promotes can matter, with the cooling heat of lower temperature rise to higher can matter, reach the demand of life and heat supply temperature, make and hang down matter heat energy also obtained recycle during the whole year.
Description
Technical field
The utility model relates to a kind of cooling/heating system, is specifically related to a kind of heat pump cooling/heating system of solar photovoltaic generation system.
Background technology
The device fabrication of all kinds of solar energy power generating of current China and running technology technology maturation, and use extensively.As the solar energy occupation mode that electricity generation system is extremely convenient for cleaning.But the defect of this kind of solar energy utilization system mode is: the generating efficiency of system is along with the temperature change of photovoltaic panel, and the efficiency of generating also changes, and whenever working temperature raises 1 DEG C, generating efficiency will decline 0.4%.Be generally 1kW/m when solar illuminating intensity
2time, 0.8m
2the energy output of solar energy photovoltaic panel when 20-25 DEG C of working temperature count roughly 160W, remaining solar energy is converted into heat and is stored in photovoltaic panel, cause the working temperature of solar energy photovoltaic panel when summer can reach more than 70 DEG C, the working temperature in winter can reach more than 50 DEG C.Can find out based on above operation conditions, the actual power efficiency of solar energy photovoltaic panel can produce great decline, and the compared with normal temperature of working during summer increases about 50 DEG C, and its generating efficiency will decline 50*0.4%=20%; Even if work time in the winter time, compared with normal temperature increases about 30 DEG C, and its generating efficiency will decline 30*0.4%=12%.The heat accumulation of visible solar photovoltaic generation system causes the rising of working temperature, is the principal contradiction affecting its energy output.
The major technique of current this difficult problem of solution adopts water cooled circulating system, is put in environment by the heat of generation by cooling water drainage.This kind of mode can improve the working temperature of solar energy photovoltaic panel, improves electrogenesis amount; Hot water heating user can be produced use simultaneously, make the single gas-to electricity mode of solar energy change into heat supply/generation comprehensive Land use systems.But the defect of this kind of mode has 2 points: the first must have the existence of heat user, otherwise the heat of cooling extracted will have to directly be discharged in air, especially when non-heating season joint empty calory demand, cause the seasonality of solar energy to waste; It two is impacts due to season, and the temperature of cooling water can not significantly reduce, and as the limiting value after the cooling water temperature in summer also may reach more than 50 DEG C, makes the generating efficiency of solar energy photovoltaic panel also have very large loss.
Utility model content
In order to solve problems of the prior art, the utility model provides a kind of heat pump cooling/heating system of solar photovoltaic generation system, the working temperature overcoming solar energy photovoltaic panel in prior art is low by seasonal effect generating efficiency, the wasting of resources of the solar energy photovoltaic panel heat of cooling, problem.
A kind of heat pump cooling/heating system of solar photovoltaic generation system bears the operation function of system photovoltaic generation and cooling heat supply respectively, native system implements cooling to solar energy photovoltaic panel all the time, guarantee that the working temperature of solar energy photovoltaic panel is not by the impact in season, stability contorting implements photoelectric conversion under optimum working temperature, to guarantee that the generating efficiency of solar photovoltaic generation system is maximized operation; The low-grade heat that heat pump absorbs simultaneously will stablize controlled upgrading to high-quality heat, implement the heat supply of temperature stabilization.Concrete running technology scheme is as follows:
A kind of heat pump cooling/heating system of solar photovoltaic generation system, comprise solar energy photovoltaic panel, be arranged at the working medium evaporator below solar energy photovoltaic panel, working medium evaporator forms circulation circuit with three-way diverter valve, Alternative Refrigerant Compressors, working fluid condenses device, electric expansion valve successively, working medium evaporator is provided with Temperature of Working meter, be provided with hot water temperature's meter in working fluid condenses device, Temperature of Working meter, hot water temperature's meter are connected with main control computer respectively with electric expansion valve.
Described working fluid condenses device is provided with feed water inlet and water return outlet, is connected with user heating equipment.
Described working medium is low boiling point working medium.
The beneficial effects of the utility model are: the heat pump cooling/heating system of the solar photovoltaic generation system that the utility model proposes, and be a kind of method that can use the heat of cooling whole year season, cooling media thermal cyclic carrier is a kind of low boiling point working medium.The phase transformation evaporation of circulatory mediator can be realized thus, can the heat assembled of strong absorption solar energy photovoltaic panel, not by the impact in season, realize the best result of use in the long timeliness of solar energy many seasons, make the working temperature of solar energy photovoltaic panel lower than ambient temperature, greatly improve its power generation characteristics; The heat simultaneously drawn, by heat pump mode, can produce the hot water of stable temperature throughout the year, realizes the effect of clean heat supply.The technology can make original uncontrollable cooling type change controlled cooling type heat supply/power supply type bifunctional system; effect during all the period of time in full season is used all reaches best working temperature; make full use of solar energy resources, realize the effect of saving fossil energy and protection of the environment simultaneously.
This utility model is while guaranteeing solar photovoltaic system optimum working temperature, can continue to reclaim cooling heat for heat supply, the solar energy utilization ratio of original system is obtained improve greatly, reach the pattern that annual optimal solar energy photovoltaic generation runs, the year utilance of equipment also will obtain and greatly improve, can greatly increase annual output energy rate thus, make the utilance of solar energy whole year reach maximization; Heat pump can be utilized simultaneously to promote energy matter, the cooling heat of lower temperature is risen to comparatively high energy matter, reach the demand of life and heat supply temperature, make low-quality heat energy have also been obtained recycling during whole year.
Accompanying drawing explanation
Heat pump cooling/heating system the process chart of Fig. 1 the utility model solar photovoltaic generation system;
Wherein, 1, solar energy photovoltaic panel 2, working medium evaporator 3, three-way diverter valve 4, Alternative Refrigerant Compressors 5, working fluid condenses device 6, electric expansion valve 7, water return outlet 8, feed water inlet 9, main control computer 10, Temperature of Working meter 11, hot water temperature's meter.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in the figure, heat pump cooling/the heating system of solar photovoltaic generation system of the present utility model, comprise solar energy photovoltaic panel 1, be arranged at the working medium evaporator 2 below solar energy photovoltaic panel 1, working medium evaporator 2 forms circulation circuit with three-way diverter valve 3, Alternative Refrigerant Compressors 4, working fluid condenses device 5, electric expansion valve 6 successively, working medium evaporator 2 is provided with Temperature of Working meter 10, be provided with hot water temperature in working fluid condenses device 5 and count 11, Temperature of Working meter 10, hot water temperature count 11 and are connected with main control computer 9 respectively with electric expansion valve 6.Working fluid condenses device 5 is provided with feed water inlet 8 and water return outlet 7, is connected with user heating equipment.
When solar energy photovoltaic panel 1 power generation operation, three-way diverter valve 3 is placed on the position of connection working medium evaporator 2 and compressor 4.The explosive evaporation in working medium evaporator 2 of low temperature liquid working medium, the heat in strong absorption solar energy photovoltaic panel 1, its working temperature reaches best requirement; The upper limit index signal up to standard of the Temperature of Working meter 10 of system master machine 9 basis starts compressor 4, by the tube side of the cryogenic fluid boil down to high pressure gaseous working medium of gasification in working medium evaporator 2 by working fluid condenses device 5, by the water body in high-temperature gasification latent heat and part sensible heat indirect condenser 5 shell side, make the temperature requirement reaching heat supply, and by water return outlet 7 and heat supply mouth 8, keep supplying life and heating hot water to user.Condensed highly pressurised liquid will implement reducing pressure by regulating flow by electric expansion valve 6, and get back in working medium evaporator 2 with the form of low temperature liquid, complete its whole circulation thus.System master machine 9 will count the upper limit instruction up to standard of 11 according to hot water temperature, control the flow for backwater, guarantee the stably reaching standard of heat supply temperature; System master machine 9, by according to the instruction up to standard of the upper limit of Temperature of Working meter 10, regulates the working medium flow of electric expansion valve 6, guarantees that the working temperature in solar energy photovoltaic panel 1 reaches best requirement.
Embodiment
If certain solar photovoltaic generation system is implemented in Efficiency in Buildings in Tianjin Area to run, design conditions are by standard photovoltaic panel 0.8m
2, the working temperature that standard energy output 160wh/h is corresponding is 20 DEG C, and working temperature often raises 1 DEG C, and photovoltaic efficiency will decline 0.4%; The heat-collecting capacity of each photovoltaic panel accounts for 70% of solar energy total radiation.Without photovoltaic generating system energy output computational chart under cooling condition in table 1, if select cycle fluid to be R134a in system of the present utility model, the physical parameter table such as working temperature pressure of summer, winter and spring and autumn is in table 2; Its in the cooling condition photovoltaic generating system energy output computational chart in table 3; Heat of cooling generating/heating load calculates in table 4.
Table 1: without photovoltaic generating system energy output computational chart under cooling condition
Table 2: medium physical property parameter list
Table 3: heat pump cooling issues electricity computational chart for heat condition
Table 4: heat pump cooling calculates for heating load under heat condition
Calculating example shows, Data-Statistics per year, every 0.8m
2unit photovoltaic power generation plate, under increase heat pump cooling condition, can make solar energy power generating amount reach optimum state.
Data-Statistics per year, every 0.8m
2unit photovoltaic power generation plate is increasing under heat pump cooling condition, the heat of exportable 1443.6kWh/.
Although be described preferred embodiment of the present utility model by reference to the accompanying drawings above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; do not departing under the ambit that the utility model aim and claim protect, can also make a lot of form, these all belong within protection range of the present utility model.
Claims (2)
1. the heat pump cooling/heating system of a solar photovoltaic generation system, it is characterized in that, comprise solar energy photovoltaic panel, be arranged at the working medium evaporator below solar energy photovoltaic panel, working medium evaporator forms circulation circuit with three-way diverter valve, Alternative Refrigerant Compressors, working fluid condenses device, electric expansion valve successively, working medium evaporator is provided with Temperature of Working meter, is provided with hot water temperature's meter in working fluid condenses device, and Temperature of Working meter, hot water temperature's meter are connected with main control computer respectively with electric expansion valve.
2. the heat pump cooling/heating system of solar photovoltaic generation system according to claim 1, it is characterized in that, described working fluid condenses device is provided with feed water inlet and water return outlet, is connected with user heating equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520551701.4U CN204810228U (en) | 2015-07-27 | 2015-07-27 | Solar photovoltaic power generation system's heat pump cooling heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520551701.4U CN204810228U (en) | 2015-07-27 | 2015-07-27 | Solar photovoltaic power generation system's heat pump cooling heating system |
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| Publication Number | Publication Date |
|---|---|
| CN204810228U true CN204810228U (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520551701.4U Expired - Fee Related CN204810228U (en) | 2015-07-27 | 2015-07-27 | Solar photovoltaic power generation system's heat pump cooling heating system |
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| CN (1) | CN204810228U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071767A (en) * | 2015-07-27 | 2015-11-18 | 天津大学 | Heat pump cooling/heating system of solar photovoltaic power generation system |
| CN106766235A (en) * | 2016-12-05 | 2017-05-31 | 合肥俊刚机械科技有限公司 | A kind of solar energy power generating hot water facility for agricultural |
-
2015
- 2015-07-27 CN CN201520551701.4U patent/CN204810228U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071767A (en) * | 2015-07-27 | 2015-11-18 | 天津大学 | Heat pump cooling/heating system of solar photovoltaic power generation system |
| CN106766235A (en) * | 2016-12-05 | 2017-05-31 | 合肥俊刚机械科技有限公司 | A kind of solar energy power generating hot water facility for agricultural |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151125 Termination date: 20160727 |
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| CF01 | Termination of patent right due to non-payment of annual fee |