Solar glass evacuated collector tube pressure-bearing series heat collector

Abstract

The invention relates to the technical field of solar energy application. The invention aims to provide a solar glass evacuated collector tube pressure-bearing series heat collector which comprises aheat absorption assembly, wherein the heat absorption assembly comprises a medium pipeline and a plurality of glass evacuated collector tubes, and the medium pipeline is sequentially bent into the glass evacuated collector tubes in an inverted-U shape to form series connection; one end of the medium pipeline communicates with the tail end of a medium inlet pipe, and the other end communicates withthe head end of a medium conveying pipe; the head end of the medium inlet pipe communicates with a medium source under pressure, and the tail end of the medium conveying pipe communicates with a heatpreservation box. A traditional parallel connection mode is changed, the series connection mode is adopted to form the heat absorption assembly, and media are in a heat superposition state all the time in the medium pipeline, so that heat exchange nodes are reduced, the temperature of the media is increased and stabilized, and the heat efficiency is greatly improved.

Description

technical field [0001] The invention relates to the technical field of solar energy applications, in particular to a solar glass vacuum heat collection tube pressure-bearing series heat collector. Background technique [0002] In recent years, with the progress and development of energy science, solar energy, as a clean, renewable and environmentally friendly energy, has attracted more and more attention from people, and has begun to be widely used in various industries. The current mainstream methods of solar energy application are mainly divided into solar photovoltaic application and solar thermal application. Solar thermal application is to use solar energy to heat the medium, so as to realize the collection and utilization of heat. The solar glass vacuum heat collector is a device that uses solar heat radiation to heat its internal medium and uses the medium to store heat. It has the characteristics of good economy, simple structure, and good universality. However, the...

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Problems solved by technology

However, there are still the following problems in the existing equipment that utilizes solar glass vacuum heat collecting tubes for solar energy utilization: 1. The solar glass vacuum heat collecting tubes are connected in parallel, and there are many neutralization nodes in the cold and hot medium, resulting in a large loss of heat energy; The uneven distribution of medium pressure in the solar glass vacuum heat collection tube leads to unstable outflow of heat storage medium

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