Through-type evacuated collector tube machining process and inner tube forming device thereof

A vacuum heat collecting tube and processing technology, which is applied in glass forming, glass reshaping, solar collectors, etc., can solve problems affecting the number of heat absorbing tubes installed, affecting heat preservation effect, air introduction, etc., to reduce damage The effect of improving the rate, improving the molding efficiency, and increasing the ventilation volume

Active Publication Date: 2019-11-19
DEZHOU XUNENG VACUUM TUBES
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AI Technical Summary

Problems solved by technology

[0002] As we all know, in the field of solar heating and heat exchange technology, with the improvement of solar heat exchange technology, the industry has gradually improved from a simple one-way heating pipe to a two-way penetration method. At present, there are some improved products on the market, but such improved products There are still technical constraints and deficiencies in the actual use process: for example, improved products such as the solar vacuum tube of 201180003241.6, which use expansion joints to realize the residual absorption of the diameter change o

Method used

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  • Through-type evacuated collector tube machining process and inner tube forming device thereof
  • Through-type evacuated collector tube machining process and inner tube forming device thereof
  • Through-type evacuated collector tube machining process and inner tube forming device thereof

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[0042] The present invention will be further described below in conjunction with the drawings.

[0043] As shown in the drawings, the through-type vacuum heat collector tube targeted by the present invention adopts the inner tube 11 and the outer tube 10 made of borosilicate glass at the ends, and the outer diameter of the inner tube 11 is provided with multiple reducing diameters. Zone 12; a snap ring 13 is clamped between the outer diameter of the inner tube 11 and the inner wall of the outer tube 10, and a getter module 14 is fixed to the snap ring 13;

[0044] The production steps of the above-mentioned through-type vacuum heat collecting tube are as follows:

[0045] ⑴Inner tube processing:

[0046] ①The inner tube is made of round high borosilicate glass material tube; image 3 with Figure 4 as well as Figure 5 As shown, the inner tube blank is locally heated in the diameter reducing zone 12 while rotating, and the heating temperature is 1000°C. After the inner tube blank is s...

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Abstract

The invention discloses a through-type evacuated collector tube machining process and an inner tube forming device. According to the process, a brand-new production process and special auxiliary equipment are adopted, variable-diameter areas of the inner tube are formed, a tail tube is connected to the outer pipe at the same time, the inner tube and the outer tube are combined after being cleaned,and vacuumizing and drying treatment are realized when the inner tube and the outer pipe are combined; the tail tube is removed and a getter module is subjected to high temperature after the combination is completed, so that the internal air is completely exhausted to realize vacuum treatment. Through an evacuated collector tube as shown through the process, the forming efficiency can be effectively improved and the damage rate can be reduced by matching with a special variable-diameter area forming device. According to the evacuated collector tube formed through the production process and the auxiliary device thereof, the heat collection and heat preservation are greatly improved compared with existing products, meanwhile, the inner diameter of the variable-diameter areas is increased compared with that of an existing product, so that the ventilation quantity is greatly improved, meanwhile, the outer diameter size of the outer pipe is unchanged, so that the close-coupled number in unit area can be effectively increased.

Description

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Claims

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Application Information

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Owner DEZHOU XUNENG VACUUM TUBES
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