Solar heater

Abstract

The invention discloses a solar heater. The solar heater comprises a heat collection and preservation box, a heat preservation water tank and a mounting frame. The heat collection and preservation boxis composed of a plurality of cylindrical single-layer thin-walled vacuum glass pipes mounted side by side, a heat collection plate, heat transmission pipes, a heat insulation and preservation layerand a metal frame. The heat insulation and preservation layer is mounted on the metal frame, the heat collection plate is arranged on the heat insulation and preservation layer in a laid mode, the heat transmission pipes which are arranged at intervals are welded to the heat collection plate, and one ends of the heat transmission pipes extend into and are fixed to the interior of the heat preservation water tank in a sealed mode. The multiple cylindrical single-layer thin-walled vacuum glass pipes erected above the heat collection plate are mounted in a same plane or curve face in a side-by-side abutting mode. The solar heater has the advantages that the utilization rate of hot water is improved, and the application range of the hot water is expanded. Meanwhile, the heat insulation and preservation performance is improved by many times, efficient heat transmission of a heat pipe can be totally achieved, power circulation is not needed additionally, the utilization cost and the manufacturing cost are reduced greatly, the reliability is higher, the low temperature resistance is higher, and the application range and the area are wider.

Description

Technical field: [0001] The invention relates to the field of solar heat, in particular to a device capable of receiving, converting, transmitting and storing, and mainly relates to a solar heater. Background technique: [0002] At present, solar thermal energy is mainly utilized in solar water heaters. There are mainly two types of solar water heaters: heat collecting tube type and heat collecting plate type. These two types of solar water heaters are low-efficiency heat-poor water heaters. The distance is relatively large, so the utilization rate of light and heat per unit area is very low; the transparent glass plate of the collector plate water heater does not have thermal insulation performance, a large amount of heat is lost through the transparent glass plate, the heat utilization efficiency is very low, and the temperature rise is limited. It is a heat-poor solar water heater, and its heat transfer method is heat conduction, and the heat transfer efficiency is low. T...

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Problems solved by technology

[0002] At present, solar thermal energy is mainly utilized in solar water heaters. There are mainly two types of solar water heaters: heat collecting tube type and heat collecting plate type. These two types of solar water heaters are low-efficiency heat-poor water heaters. The distance is relatively large, so the utilization rate of light and heat per unit area is very low; the transparent glass plate of the collector plate water heater does not have thermal insulation performance, a large amount of heat is lost through the transparent glass plate, the heat utilization efficiency is very low, and the temperature rise is limited. It is a heat-poor solar water heater, and its heat transfer method is heat conduction, and the heat transfer efficiency is low. The hot water generated by it is basically hot water for bathing and cannot be used as drinking water, which seriously limits the functional scope of solar water heaters; Water heater inlet and outlet pipelines are relatively long. In low temperature and severe cold environment, it is easy to freeze and block the pipe. The collector plate solar water heater is more likely to freeze, block or freeze because the transparent glass plate is not insulated.

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