High-frequency electric sealing device for solar vacuum tubes and sealing method thereof

Abstract

The invention relates to a high-frequency electric sealing device for solar vacuum tubes and a sealing method thereof. The sealing device has the advantages of saving the production labor, reducing the manual cost, improving the working environment, reducing the labor intensity, improving the product quality, and the like. The structure of the sealing device is that: the sealing device comprises a sealing table panel; a plurality of high-frequency sealing furnaces are arranged on the sealing table panel; each high-frequency sealing furnace is connected with a high-frequency power supply device; each high-frequency sealing furnace is provided with a bracket; a shielding plate, an upper heat insulation plate, an induction heating body and a lower heat insulation plate are arranged inside the bracket from top to bottom in turn; and a high-frequency induction generator is arranged at the periphery of the induction heating body.

Description

technical field [0001] The invention relates to a solar vacuum tube processing equipment and method, in particular to a solar vacuum tube high-frequency electric sealing device and a sealing method for automatically sealing off the exhaust pipe of the solar vacuum tube after exhaust. Background technique [0002] In the production of solar vacuum tube processing equipment, the exhaust work of the solar vacuum tube on the exhaust table is carried out through the exhaust pipe fixed on the vacuum tube. Sealing operation. This vacuum tube exhaust tube sealing technology is widely used in the production of all-glass vacuum heat collecting tubes. The heating methods mainly include gas heating and electric heating. Gas heating method to seal off the solar vacuum tube exhaust pipe requires the operator to manually preheat the solar vacuum tube exhaust pipe in a high-temperature flame, melt the part that needs to be sealed, and then perform the separation operation. Disadvantages o...

AI Technical Summary

Problems solved by technology

Disadvantages of this processing method: 1. This method requires that the diameter of the vacuum tube exhaust pipe seal is small, which will affect the exhaust speed and vacuum quality of the vacuum tube; 2. The number of workers is large, and the labor cost is correspondingly high; 3. Due to frequent and monotonous operations, the labor intensity is relatively high, and the quality and consistency of the sealing of the solar vacuum tube exhaust pipe are difficult to control, and it is easy to cause air leakage, rough surface, and uneven unevenness; 4. Because this process is a high-temperature operation , the operator has been in this environment for a long time, and his physical and mental health will be damaged to a certain extent.

[0003] The electric heating wire heating and sealing technology is a new sealing method recently. This method heats the glass exhaust pipe through the resistance wire surrounding the exhaust pipe. The exhaust pipe is heated evenly and the sealing quality is good. However, this method The method has disadvantages. On the one hand, the technology is not mature enough, and the yield rate is low. On the other hand, the cost is high and difficult to operate, so it is not suitable for mass automated production.

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