High performance solar water heater

Abstract

The invention discloses a high-efficiency solar water heater, which is composed of a vacuum tube, a reflective plate, a thermal insulation tube and a casing. The cross section of the vacuum tube is elliptical. The heat preservation pipe is integrated with the outer layer pipe and the inner layer pipe, and there is a sealing ring space between the inner layer pipe and the outer layer pipe to form a heat preservation vacuum chamber. The invention has the advantages of large heat absorption area, good anti-light absorption effect, and good heat preservation effect , high strength and long life.

Description

1. Technical Field [0001] The invention belongs to the technical field of solar water heaters, and particularly relates to a high-efficiency solar water heater. 2. Background technology [0002] At present, solar water heaters are more and more widely used and have been accepted by the majority of people. The cross-sections of the existing solar vacuum tubes are circular. Although this vacuum tube can absorb a certain amount of sunlight, it is affected by its boundary area. Its light collection area is small, so the efficiency is not high. The existing solar reflectors generally use stainless steel, aluminum plate or aluminum paper, etc., and the effect is also good, but there are problems of corrosion, aging, and damage. The surface of the reflector is easy to stick to dust when used for a long time. , Thus affecting the reflective effect. At the same time, the existing thermal insulation pipes of solar water heaters generally adopt methods such as bundling thermal insulation ma...

AI Technical Summary

Problems solved by technology

[0002] At present, the application of solar water heaters is becoming more and more extensive, and has been accepted by the majority of the people. The cross-section of the existing solar vacuum tubes is circular. Although this vacuum tube can absorb a certain amount of sunlight, due to the influence of its interface area, The light-receiving area is small, so the efficiency is not high. The existing solar reflectors generally use stainless steel, aluminum plate or aluminum paper, etc., and the effect is also good, but there are problems of corrosion, aging and damage. The surface of the reflector is easy to stick to dust after long-term use , thereby affecting the reflective effect. At the same time, the existing thermal insulation pipes of solar water heaters generally use methods such as binding thermal insulation material layers outside the tubes and coating thermal insulation layers. Although this method can play a certain role in thermal insulation, the construction is complicated, wastes materials, and affects beautiful appearance

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