Solar heat collecting device with water remaining in transverse vacuum heat collecting tube

Abstract

The invention discloses a solar heat collecting device with water remaining in transverse vacuum heat collecting tube, which consists of a vacuum heat collecting tube and a united device in fitting connection with the heat collecting tube. The solar heat collecting device is characterized in that a horizontal error of two ends of the heat collecting tube is less than plus or minus 35mm; a water blocking object is arranged at the mouth of the heat collecting tube so that water still remains when water comes out of the heat collecting tube; the water blocking object includes a connection pipe and a sealing ring in sealing connection with a glass pipe in the heat collecting tube, and a water blocking ring in sealing connection with the inside of the glass pipe in the heat collecting tube; and the solar heat collecting device has the advantages that: with water remaining in the heat collecting tube, tube explosion caused by empty drying and sudden feeding of cold water can be prevented. On the basis, water is led to flow into the heat collecting tube for heat exchange and then flows out of the heat collecting tube, thereby overcoming the defects of high long-distance heat transfer resistance and inferior loading capability when the heat collecting device with water remaining in the transverse vacuum heat collecting tube stores water by means of the heat collecting tube, and the solar heat collecting device has the advantages of less heat exchange links, small quantity of pressurized water in the tube, large amount of heat and great convenience of the selection for output temperature. By adopting the straight-type split-type solar water heater which is equipped with a split-type indoor water tank, the use of circulating pump can be avoided and hot water supply time is short.

Description

technical field [0001] The invention relates to a solar heat collecting device which retains water in a horizontal vacuum heat collecting tube. Background technique [0002] The existing vacuum heat collecting tube has high heat collecting temperature, small heat loss and high degree of industrialization, and the intubation type solar water heater manufactured with it can provide domestic hot water above 50°C in winter. But in general, the application products of vacuum heat collecting tubes are not rich and developed enough. Contents of the invention [0003] The object of the present invention is to provide a solar heat collecting device in which water is retained in horizontal vacuum heat collecting tubes. [0004] The technical solution adopted by the present invention to solve the technical problem is to use the vacuum heat collecting tubes and the coupling devices connected with the heat collecting tubes to form a solar heat collecting device with water retained in ...

AI Technical Summary

Problems solved by technology

But in general, the application products of vacuum heat collecting tubes are not rich enough.

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