Hot pipe type solar heat collector

Abstract

The invention discloses a hot pipe typed solar heat collector, comprising a vacuum glass pipe which is provided with an elastically sealed internal layer and an external wall with a heat absorbing film arranged; the key point is that an internal chamber of the vacuum glass pipe is provided with a superconducting heat collecting part by a flexible supporting body; the superconducting heat collecting part consists of a metal vacuum superconducting pipe with two ends sealed and a heat exchange pipe which is arranged in the internal chamber of the metal superconducting pipe; the external wall of the metal vacuum superconducting pipe is provided with a heat absorbing coating; and the lower part of the internal chamber is filled with superconducting liquid. The hot pipe typed solar heat collector has can bear high pressure, has large strength and no phenomena of pipe explosion or freezing, and has the heat collecting temperature of single pipe more than 300 DEG C, and a heat collecting effect better than that of the existing solar heat collectors of other structures. When two ends of the heat exchange pipe are combined in the form of serial connection, parallel connection or mixed connection, the hot pipe typed solar heat collector can be used for household hot water, bathing, heating or group heating, hot water engineering, drying of products, high temperature steam and has wide applicable range.

Description

Technical field [0001] The invention relates to the technical field of solar energy utilization, in particular to a medium-high temperature solar heat collection device with a compound heat collection structure. Background technique [0002] At present, there are many types of solar heat collectors. Many vacuum tube solar water heaters on the market use a double-layer coaxial glass vacuum tube with an open end, and the outer wall of the inner tube has a heat-absorbing coating. There are roughly two heat-absorbing forms of this vacuum heat-collecting tube. One is to fill the inner cavity of the vacuum glass tube for heat collection; the other is to install a metal tube with good heat absorption in the inner cavity of the vacuum glass tube. Equipped with an appropriate amount of low-temperature medium, it is evacuated and sealed to form a heat collecting tube. The heat collection process of this kind of heat collection tube is to absorb solar energy through the glass vacuum t...

AI Technical Summary

Problems solved by technology

However, the solar collectors of this water heater are mostly limited to the range of low-temperature hot water, and the heat utilization efficiency is low, and the water temperature is limited to below 100 degrees Celsius

It is difficult to keep warm in winter, and sometimes freezes and bursts

In particular, this type of water heater is not under pressure and cannot obtain high temperature, so the range of use is greatly limited.

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