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Diameter reducing bent inner glass tube eccentric heat tube vacuum heat collecting tube

A technology of vacuum heat collecting tubes and inner glass tubes, which is applied in the direction of heating devices, solar thermal devices, solar thermal power generation, etc., can solve problems such as troublesome connection of melting and sealing, insufficient variety of products, etc., to reduce the difficulty of melting and sealing, heat sink Small, heat doubling effect

Inactive Publication Date: 2014-01-22
施国庆
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the melting and sealing connection between the eccentric inner glass tube and the cover glass tube of the eccentric heat collecting tube whose inner glass tube is a straight tube is troublesome, and the product variety is not rich enough.

Method used

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  • Diameter reducing bent inner glass tube eccentric heat tube vacuum heat collecting tube

Examples

Experimental program
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Effect test

Embodiment Construction

[0014] figure 1 An example of the present invention is given.

[0015] figure 1 In this method, a curved inner glass tube 4 consisting of an eccentric straight section 1, an outer straight section 2, and a curved section 3 connecting the eccentric straight section 1 and the outer straight section 2 is used, and a cover glass tube 5 with one end rounded is embedded. The sleeve arrangement, the waist of the outer straight section 2 and the port of the cover glass tube 5 are melt-sealed and connected to form an eccentric jacket; the cover glass tube 5 contains a reduced diameter section 6 near the sealing; the outer diameter of the reduced diameter section 6 is smaller than the outer straight The diameter of section 2 is 10 mm; the outer straight section 2 protrudes outwards to form a round seal, and the inside of the curved inner glass tube 4 is evacuated and filled with working fluid for sealing; the inside of the eccentric jacket is baked and exhausted and then sealed to form...

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Abstract

Provided is a diameter reducing bent inner glass tube eccentric heat tube vacuum heat collecting tube. A bent inner glass tube and a cover glass tube are arranged in an embedded mode, the bent inner glass tube is formed by an eccentric straight section, an outer straight section and a bent section connected with the eccentric straight section and the outer straight section, one end of the cover glass tube is sealed in a circular mode, and the waist part of the outer straight section and the port of the cover glass tube are connected to form an eccentric clamping sleeve in a melt sealing mode. The cover glass tube comprises a diameter reducing section close to the seal connection portion. The outer straight section stretches out of the circular seal, and the inner portion of the bent inner glass tube is vacuumized and filled with working media for sealing. The diameter reducing bent inner glass tube eccentric heat tube vacuum heat collecting tube is formed by sealing off after roasting and air exhaust are carried out on the inner portion of the eccentric clamping sleeve. The diameter reducing bent inner glass tube eccentric heat tube vacuum heat collecting tube is characterized in that a mirror face or a semicircular groove-shaped object with an inward concave semicircular mirror face in a matching mode is manufactured on the surface of the cover glass tube in an around 180-degree circumferential range, an absorbing film is manufactured on the eccentric straight section, and the eccentric straight section with the absorbing film and the mirror face manufactured on the surface of the cover glass tube are in light condensation connection, or the eccentric straight section with the absorbing film and the inward concave semicircular mirror face of the semicircular groove-shaped object manufactured on the surface of the cover glass tube are in light condensation connection.

Description

technical field [0001] The invention relates to a vacuum heat collecting tube of an eccentric heat pipe of a glass tube inside a narrowing bend. Background technique [0002] There is an all-glass vacuum heat collecting tube in which an inner glass tube is arranged eccentrically, also known as an eccentric heat collecting tube. The diameter of the inner glass tube is about half of that of the cover glass tube, and the semicircular evaporated aluminum mirror on the inner wall of the cover glass tube is used to condense light to the absorption film on the surface of the inner glass tube to collect heat, which has the advantages of less material and a small inner glass tube cavity Less water storage, heat sink, small surface area, small heat loss, small start-up, etc. But this kind of inner glass tube is cumbersome for the fusion sealing connection of the eccentric inner glass tube of the eccentric heat collecting tube of the straight tube and the cover glass tube, and the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24J2/46
CPCY02E10/40
Inventor 施国庆
Owner 施国庆
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