Air heated anti-freezing solar energy collector system

Abstract

The invention discloses an air heated anti-freezing solar energy collector system, relating to an anti-freezing solar energy collector system. The system aims at the problems that water is remained extremely easily in an exhaust and evacuation system to cause the frost cracking of valves and pipelines, relatively low temperature makes a circulating working medium solidified to cause the frost cracking of the pipelines and the antifreeze liquid system has large initial cost and easily causes environment pollution. A temperature sensor is mounted on a circulating working medium inlet pipe between an electric disconnecting valve and a solar energy collector; the upper end of a first communicating pipe is communicated with the circulating working medium inlet pipe; the lower end of the first communicating pipe is communicated with the inlet end of a wind power heater; the upper end of a second communicating pipe is communicated with a circulating working medium outlet pipe; the lower end of the second communicating pipe is communicated with the outlet end of the wind power heater; and a second check valve and a second circulating water pump are mounted on the second communicating pipealong the flow direction of the circulating working medium in sequence. By the invention, the initial cost of the collector anti-freezing system is decreased, and the problems of pollution and the frost cracking of the pipelines and the valves are avoided.

Description

technical field [0001] The invention relates to an antifreeze solar heat collector system. Background technique [0002] Due to the low outdoor temperature in winter in some areas of our country, when using solar energy, the problem of antifreezing of solar collectors must be considered. In the antifreeze design of solar collectors, national standards generally recommend emptying systems, drainage systems, antifreeze systems and circulating antifreeze systems. Due to improper installation and equipment problems, the drainage and emptying system can easily cause residual water in the system, resulting in cracking of valves and pipelines, affecting the safe operation of the system. The antifreeze system, especially the high-concentration antifreeze system, has a relatively large initial investment, and its price is about 300 to 400 yuan per square meter of solar collectors, and because the solar collectors are located outdoors, they are easily affected by external forces and ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of residual water easily remaining in the return and emptying system, resulting in cracking of valves and pipelines, the problem of freezing and cracking of circulating working fluid due to low temperature, and the large initial investment and cost of antifreeze system. Easy to cause environmental pollution, and then provide a wind-heated antifreeze solar collector system

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