A solar medium temperature collector

Abstract

The invention provides a solar medium-temperature heat collector which comprises an energy storage tank and a plurality of solar energy collecting units. Water is contained in the energy storage tank. The bottom of the energy storage tank is provided with a water replenishing header and a gas transmission header. Each solar energy collecting unit is composed of a transparent vacuum tube and a double-layer steel cylinder arranged in the transparent vacuum tube, wherein the double-layer steel cylinder is of a structure comprising an inner layer and an outer layer, a water storage interlayer is arranged between the inner layer and the outer layer of the steel cylinder, the top of the water storage interlayer is communicated with the bottom of the gas transmission header through a gas transmission pipe, and the bottom of the water storage interlayer is communicated with the water replenishing header through a water replenishing pipe. According to the heat collector, the water storage interlayers of the double-layer steel cylinder are filled with water so that solar energy can be absorbed, the contact area is increased, and the evaporation efficiency is improved; meanwhile, the transparent vacuum tubes are externally arranged, loss of the received solar energy is prevented, and therefore the utilization efficiency of the solar energy can be improved substantially; the energy storage tank is additionally arranged, the evaporated water can be supplemented at any time, the absorbed solar energy can also be storage, and therefore the general applicability of solar energy utilization can be improved.

Description

technical field [0001] The invention relates to the field of development and utilization of new energy, in particular to a solar medium-temperature heat collector. Background technique [0002] Solar energy is a clean and pollution-free energy source with great development potential. With the increasing use of solar energy, the development of solar energy devices is becoming more and more mature, such as solar steam generators. Solar steam generators are devices specially used to produce water vapor , the water vapor produced can be used for heating in winter, cooking food, storage, etc., because of its convenient use and low cost, it has been widely welcomed by consumers in recent years, but the existing solar steam generators are too dependent on sunlight That is to say, it must be used when the weather is good, but it cannot be used on cloudy days or at night, and when the sun is sufficient, due to the high temperature, a large amount of solar energy can be collected in a...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of low utilization efficiency existing in existing solar energy utilization devices, the present invention provides a solar medium-temperature heat collector, which can store the energy collected when the solar energy is sufficient and use it when the solar energy is insufficient, thereby improving the solar energy efficiency. The utilization efficiency, and the generated solar steam has high temperature and good quality, which can well meet the requirements of consumers

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