Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for closing a double-walled glass tube in a vacuum-tight manner

A technology of vacuum sealing and glass tubes, which is applied in the field of equipment for vacuum sealing double-wall glass tubes and vacuum sealing double-wall glass tubes. The effect of simple, simple installation

Inactive Publication Date: 2017-05-10
AIRBUS DEFENCE & SPACE
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the laser method is that, for example, focusing in a vacuum receiver is very complex and cost-intensive
In addition, the glass solder must be heated externally

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for closing a double-walled glass tube in a vacuum-tight manner
  • Method for closing a double-walled glass tube in a vacuum-tight manner
  • Method for closing a double-walled glass tube in a vacuum-tight manner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0055] figure 1 The method of is a method for the vacuum-tight closing of a double-walled glass tube and can in particular be considered a production method or a part of a production method for producing a solar collector. exist figure 1 Illustrated with step S1 : a double-walled glass tube is provided inside the vacuum chamber in the presence of the desired negative pressure inside the vacuum chamber. This glass tube can be considered a solar collector. In step S2, the outer glass tube and / or the inner glass tube are heated in an electrically conductive manner, more precisely at the first end of the double-walled glass tube. This is done by using at least one heating conductor. The conductively heated glass tube deforms at the first end of the double-walled glass tube such that the outer glass tube and the inner glass tube come into contact and thereby hermetically close the first end of the double-walled glass tube. The deformation and closure steps are in figure 1 S...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method and a device (200, 300, 400) for closing a double-walled glass tube (206) in a vacuum-tight manner, in particular a production method for producing solar collectors. By means of a provided vacuum chamber, in which a retaining element is fastened and in which a heating conductor (202, 204, 301, 302, 401, 402) is arranged, electroconductive heating and subsequent deformation of the double-walled glass tube (206) can be achieved. No additional materials such as metal auxiliary elements or solders are needed. Simple installation in the vacuum chamber is possible and a minimal required vacuum feed-through for the current supply of a heating conductor is needed. The direct heat transfer to the double-walled glass tube (206) and the accordingly fast process control make it possible to securely close a double-walled glass tube (206) of a thermal solar collector under vacuum using simple means.

Description

technical field [0001] The invention relates to a solar collector consisting of a double-walled glass tube. In particular, the invention relates to a method for vacuum-tight closing of a double-wall glass tube and a device for vacuum-tight closing of a double-wall glass tube. Background technique [0002] In solar thermal collectors, the most efficient system is to use a 2 Consists of a double-walled glass tube with an anti-reflection layer. Then, the liquid medium (water) to be heated is heated directly in the inner tube. The medium between the double walls is used for thermal insulation. Ideally, the medium is a vacuum. In the method mode, it is necessary to: in a vacuum chamber, under vacuum directly on the MgF 2 After the vapor deposition process, the double-walled glass tube, which has been melted at one end, is securely closed with the first open other end. [0003] The final method step according to the prior art for melting the double-walled glass tube under va...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C03B23/13F24J2/05F24S10/40F24S10/70
CPCC03B23/13F24S10/45Y02E10/44C03B23/043C03C17/22C03C2217/285C03C2217/732C03C2218/15
Inventor 于尔根·施泰因万德尔赫尔穆特·皮林格斯特凡·劳雷
Owner AIRBUS DEFENCE & SPACE