Optical fiber wire drawing furnace cooling pipe helium gas recovery device

Abstract

The invention discloses an optical fiber wire drawing furnace cooling pipe helium gas recovery device. Through a helium gas recovering device which is connected onto the bottom of a wire drawing furnace cooling pipe and is in independent arrangement, a filter is connected behind the helium gas recovering device; then, an electromagnetic valve is connected; an electromagnetic valve and a cooling pipe realize the linkage; a mass flow rate regulating valve is connected and is used for regulating the flow rate; the influence on the wire drawing furnace cooling pipe process is avoided; the filter is connected and is used for filtering fine particles in helium gas; the part is divided into two paths for parallel operation; one standby path and one use path are realized; a special vacuum pump forhelium gas is connected for realizing the recovery on the helium gas; a low-pressure buffer tank is connected; a helium gas compressor is connected behind the buffer tank; the helium gas compressor is provided with an automatic backflow device, and is connected back to the low-pressure buffer tank in front of the helium gas compressor through the pressure sensor and the pressure regulating valve;the helium gas compressor is provided with a bypass; a high-pressure buffer tank is connected behind the helium gas compressor; the helium gas enters a purification system after passing through the high-pressure buffer tank. By using the mode, the independently designed helium gas recovery device and subsequent recovery processes can be used so as to fill the wire drawing furnace cooling pipe helium gas recovery blank and to solve the problems of low helium gas recovery efficiency and non-ideal recovery effect in the prior art.

Description

Technical field [0001] The invention relates to the field of helium recovery, in particular to a helium recovery device for a cooling pipe of a drawing furnace. Background technique [0002] Helium is an inert gas, usually colorless, odorless, non-toxic, and non-flammable under pressure and temperature. It is the substance with the lowest critical temperature found by humans. It is dark yellow when discharged at low pressure. It is the most difficult gas to liquefy. It is extremely inactive, non-flammable, and non-flammable. Helium will not solidify at absolute zero under normal pressure. Due to such characteristics of helium, helium is widely used in modern industry. In the optical fiber manufacturing process, helium is used as the protective gas for heating and softening of the light rod in the drawing stage, and the superconducting properties of helium and the characteristics of inert gas are used to prevent the light rod from oxidizing, exerting its thermal conductivity and ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem mainly solved by the present invention is to provide a helium gas recovery device for the cooling tube of the wire drawing furnace, which utilizes an independently designed helium gas recovery device and a subsequent recovery process to improve the low recovery rate of helium gas in the prior art, unsatisfactory recovery effect and To solve the problem of low purity after purification, to fill the gap of helium recovery in the cooling tube of the drawing furnace

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