Anti-freezing flat-plate solar collector

Abstract

The invention discloses an anti-freezing flat-plate solar collector, which belongs to the field of solar heat collectors and comprises a solar collector body, a heat collecting plate is arranged in the solar collector body, and a circulating water path is fixedly mounted at the upper end of the heat collecting plate. A plurality of circulating water pipes fixedly connected with the heat collecting plate are arranged on the circulating water way, a temperature sensing deformation protection mode can be formed through cooperation of a thermal insulation trigger strip, a wrapping type anti-freezing piece and a trigger guide groove, the effect of temperature sensing adjustment is effectively achieved while the heat collecting and exchanging effects of the solar heat collector body and the circulating water way are not affected, and the service life of the solar heat collector is prolonged. And when the temperature is reduced, the circulating water pipe can be rapidly wrapped for heat insulation, damage to the circulating water pipe caused by temperature difference is reduced, the service life of the solar heat collector body is effectively prolonged, the failure rate and the maintenance cost of the solar heat collector body are reduced, and then the environmental applicability of the solar heat collector body is effectively improved.

Description

technical field [0001] The present invention relates to the field of solar thermal collectors, and more particularly, to an anti-freezing type flat solar thermal collector. Background technique [0002] Solar energy is the most eye-catching clean energy among new energy and renewable energy. It is beneficial to energy conservation and environmental protection. It can be said that the mainstream of global energy in the future is solar energy. Solar energy utilization technology is receiving more and more attention. Heater is the most important component in solar thermal utilization, and its performance plays a decisive role in the success or failure of the entire system. [0003] The flat-plate solar collector is a device that absorbs solar radiation energy and transfers heat to the working medium. It is a special heat exchanger. The working medium in the collector exchanges heat with the distant sun. The flat-plate solar collector It is composed of a heat-absorbing plate co...

AI Technical Summary

Problems solved by technology

[0004] Existing flat-panel solar collectors are widely used due to their many advantages, but for flat-panel solar collectors used in areas with large temperature differences, when the external ambient temperature drops rapidly, it is very easy to cause flat-panel solar collectors to Damages such as cracking and freezing of the inner collector tube will increase the failure rate of the flat panel solar collector, increase its maintenance cost, and reduce its environmental applicability

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