All-glass solar thermal-collecting tube water separator

Abstract

The invention discloses an all-glass solar thermal-collecting tube water separator, relating to an all-glass solar vacuum thermal-collecting tube, in particular to a water separating device which is capable of separating the hot water from the cold water at a thermal-collecting tube orifice. The convection problem of the hot water and the cold water of the thermal-collecting tube is expected to be solved from a source, so that the temperature of a sunny side of the thermal-collecting tube is higher than that of a shady side; the hot water runs upward along the sunny side, and the cold water runs downward along the shady side. The water separator is formed in a way that a connection ring 4 with a telescopic gap 7 is connected with a hot water channel 2, a cold water channel 3 and a water separating tongue 5. The water separating tongue 5 separates the hot water from the cold water at the thermal-collecting tube orifice; the hot water enters an upper layer hot water area of a water storage tank via the hot water channel 2; the bottom layer cold water enters the thermal-collecting tube via the cold water channel 3, runs downward along the shady side, and floats upward into the hot water of the sunny side to run upward after being heated; and then the down cold water fills the space left. After the water separator is installed in the conventional thermal-collecting tube, the convection of the water in the thermal-collecting tube and the water storage tank can be improved, the water circulating speed can be increased, and the thermal collecting efficiency can be improved.

Description

technical field [0001] The invention relates to an all-glass solar heat collecting tube, in particular to a water separating device capable of separating hot water and cold water at the nozzle of the heat collecting tube. Background technique [0002] In 1995, Beijing Tsinghua University Solar Electronics Factory invented the all-glass vacuum solar heat collector, patent number 95215311.4. The lower end of the heat collecting tube using this patented technology is closed, the upper end is open, and the upper end is inserted into the water storage tank, which has become a typical structure of solar water heaters. The water absorbs heat energy in the inner tube of the heat collecting tube, and the water naturally circulates between the inner tube of the heat collector and the water storage tank, and the water in the water storage tank gradually becomes hotter. Since then, research and exploration schemes on improving the performance of solar heat collecting tubes have emerged...

AI Technical Summary

Problems solved by technology

[0020] In paper 4, the water convection conditions in the heat collecting tube and the water storage tank are described, but the conclusion is that to determine the inclination angle of the heat collecting tube, the latitude factor and the heat convection factor need to be considered comprehensively, and it is not concluded that the orifice of the heat collecting tube must be adjusted The thermal state is adjusted, and then the convection state in the heat collecting tube is changed, and finally the convection state of the water in the heat collecting tube and the water storage tank is improved.

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