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

Abstract

The invention provides a glass evacuated collector heat tube with a built-in compounded metal profile heat tube. The heat tube comprises a glass evacuated collector tube, a metal profile heat tube and a seal end cover, wherein the metal profile heat tube is an evacuated and sealed tube which is provided with metal fins and is filled with phase change medium; the metal fins are elastic radial ribs; the tail end of each rib is provided with a fin matched with the inner wall of the glass evacuated collector tube to ensure that the fin at the tail end of the rib is closely attached to the inner surface of the glass evacuated collector tube; the forward direction of the fins of the metal profile heat tube is in an unscrewed state, while the backward direction thereof is in a screwed state; the metal profile tube with the fins inserted in the glass evacuated collector tube is an evaporation section; the tube connected with the end socket of the metal profile tube is a condensation section; and an end cover is arranged between the evaporation section and the condensation of the metal profile heat tube. An air layer is eliminated between the collector fins and the inner surface of the glass evacuated collector tube, so that the heat resistance is greatly reduced, and the heat transfer performance is improved more greatly than ever before.

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 heat pipe installed inside the tube. It uses a more scientific design to strengthen and improve the heat transfer function of...

AI Technical Summary

Problems solved by technology

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

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