Double-vacuum inner condensing type power generation and heating solar heat collecting tube

Abstract

A double-vacuum inner condensing type power generation and heating solar heat collecting tube comprises a vacuum tube disposed below the union box of a solar water heater. One end of the vacuum tube is sealed, and the other end thereof is provided with an opening. A sealed vacuum interlayer is disposed in the tube wall of the vacuum tube. A radiating end embedded at the bottom of the union box is disposed outside the opening end of the vacuum tube. A temperature difference power generating piece and a metal condensing end are sequentially disposed inside the opening end of the vacuum tube. The outer edge of the metal condensing end is in hot-seal connection with the inner wall of the vacuum tube to allow a sealed vacuum cavity to be formed inside the vacuum tube. The end of the metal condensing end extends into the inside of the vacuum tube and is not in contact with the inner wall of the vacuum tube. Two output electrodes of the temperature difference power generating pieces guides out the vacuum tube and do not destroy the seal structure of the vacuum interlayer. Heat transfer working medium is disposed in the vacuum cavity. The temperature difference power generating pieces generate voltage which is output to a storage battery or other electric equipment through the two output electrodes, thermoelectricity and photo-thermal switching of solar energy is achieved, and solar energy utilization rate is increased.

Description

technical field [0001] The invention relates to a solar power generation device, in particular to a double-vacuum internal condensation type solar heat collection tube for power generation and heating. Background technique [0002] In the utilization of solar energy, thermoelectric power generation is an effective way to rationally utilize waste heat, solar energy, geothermal energy and other energy sources to convert them into electrical energy. It has the characteristics of simple structure, durable, no moving parts and noise. In view of this, the radiant heat of the sun can be fully utilized to establish a temperature difference between the two ends of the thermoelectric module to realize temperature difference power generation. At present, the known solar water heater includes a header, a heat collecting vacuum tube and a support. The header is provided with an exhaust port, an overflow port and a water inlet. As high as 95°C, when the water reaches the boiling point te...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a double-vacuum internal condensation type power generation and heating solar heat collection tube to achieve the purpose of simultaneously realizing the dual conversion of the sun's thermoelectricity and light heat, so as to solve the waste of heat and the narrow range of energy utilization in solar water heaters in the prior art The problem

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