Glass evacuated collector tube with built-in compounded metal profile tube

Abstract

The invention provides a glass evacuated controller tube with a built-in compounded metal profile tube. The collector tube comprises the glass evacuated collector tube, a metal profile tube and a seal end cover, wherein the metal profile tube is a metal tube which is provided with metal fins and elastic radial ribs, and one end of the metal profile tube with the metal fins is closed and the other end thereof is open; the tail end of each rib is provided with a fin matched with the inner wall of the glass evacuated collector tube; the sealed end of the metal profile tube is inserted in the glass evacuated collector tube; fins on the radial ribs on the metal profile tube are closely attached to the inner surface of the glass evacuated collector tube; the forward direction of the fins of the metal profile tube is in an unscrewed state, while the backward direction is in a screwed state; the metal profile tube with the fins inserted in the glass evacuated collector tube is a heat absorbing section; an open metal tube head positioned outside the glass evacuated collector tube is an exit of fluid medium; and the metal profile tube is provided with an end cover arranged on the opening of the glass evacuated collector tube. The collector tube has simple structure, is safe and reliable, and greatly improves the heat efficiency of the evacuated collector tube.

Description

technical field [0001] The invention relates to solar water heater technology. Background technique [0002] The glass vacuum heat collector is the core component of the solar water heater. Its function is to transfer solar heat. Whether the heat transfer is good or not directly affects the work and efficiency of the entire water heater. In the prior art, since the corrugated fin heat pipe is loosely installed in the glass vacuum tube, its transmission path is: sunlight irradiates the glass tube → heat energy is transferred to the air layer in the tube → heat energy is transmitted directly to the fin heat pipe. The heat transfer path is long, the thermal resistance is large, and the heat transfer efficiency is low. Contents of the invention [0003] The purpose of this invention is to provide a glass vacuum heat collecting tube with a metal profile tube compositely installed in the tube. It uses a more scientific design to strengthen and improve the heat transfer function...

AI Technical Summary

Problems solved by technology

Long heat transfer path, large thermal resistance, low heat transfer efficiency

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