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Antifreeze and heat utilization device and method for solar battery cooling liquid

A solar cell and cooling liquid technology, applied in photovoltaic power generation, electrical components, photovoltaic thermoelectric hybrid power generation, etc., can solve the problem of solar cell cooling liquid freezing, and achieve the effect of reducing energy consumption, saving energy and saving costs

Inactive Publication Date: 2016-05-11
SOUTHEAST UNIV
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies of the prior art, the present invention provides a solar battery cooling liquid antifreeze and heat utilization device and method, which solves the problem of solar battery cooling liquid freezing under extreme weather conditions and without using antifreeze; and It can continuously and stably utilize the low-grade heat energy of the solar cell back heat exchanger

Method used

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  • Antifreeze and heat utilization device and method for solar battery cooling liquid

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Experimental program
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Embodiment 1

[0038] Take water as the cooling liquid as an example to further explain:

[0039] When the temperature probe 7 senses that the temperature in the solar cell cooler 2 is 32°C or greater than the heating temperature value of 26°C, it is set by the user, the electric valve V-2 and the electric valve V-1 are opened, and the electric valve V-3 is opened. , the exhaust valve V-4, and the exhaust valve V-5 are closed, the boiler 5 does not work, and the heat in the solar cell cooler 2 is independently circulated to form a low-grade heat utilization mode. If the temperature detected by the temperature probe 7 is higher than the solar cell power generation efficiency critical value of 35°C, increase the rotating speed of the working medium pump 4, increase the flow rate of the circulating working medium water in the device, and reduce the temperature at the outlet of the solar battery cooler 2;

[0040] When the temperature probe 7 detects that the temperature in the solar cell cooler...

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Abstract

The invention relates to a solar battery cooling liquid anti-freezing and heat utilization device and method. The device comprises a solar battery (1), a solar battery cooler (2), a temperature probe (7), a radiation tail end (6), a boiler (5), a working medium pump (4) and a liquid storage tank (3). A valve is arranged to control the device to work in a low-grade heat utilization mode, a heat supplementation mode and a solar battery cooling liquid anti-freezing mode. On the premise that anti-freezing liquid is not used, a control system will cut off the cooling liquid injected into the solar battery cooler when outdoor temperature is lower than a cooling liquid freezing point, and therefore the cooling liquid is prevented from being frozen. Low-grade heat energy generated by a photoelectric panel is used for reducing the temperature of the photoelectric panel and improving the power generation efficiency of the photoelectric panel. Meanwhile, the problem that on the premise that no anti-freezing liquid exists, the cooling liquid in a photoelectric panel is frozen at low temperature is solved.

Description

technical field [0001] The invention relates to the field of solar cells and heating, ventilating and air-conditioning, in particular to a solar cell cooling liquid antifreeze and heat utilization device and method. Background technique [0002] The solar cogeneration system is implemented by combining photovoltaic cells and solar water heaters. The conversion efficiency of ordinary photovoltaic cell components is generally about 5-18%, and the remaining solar radiation energy is converted into heat energy and lost to the environment; And when the operating temperature of the photovoltaic cell module gradually increases, its photoelectric conversion efficiency decreases and affects the service life of the battery stack; if the photovoltaic cell is cooled in time, not only can the waste heat generated by the conversion process be effectively used, but also the photoelectric conversion efficiency can be improved. Efficiency, thereby improving the comprehensive utilization effi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02S40/44H02S40/42
CPCY02E10/50Y02E10/60
Inventor 陈九法齐东昇杜中玲
Owner SOUTHEAST UNIV
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