Circulating blowing-type clamping electric welding work box for pipeline operation

Abstract

The invention discloses a circulating blowing-type clamping electric welding work box for pipeline operation. The circulating blowing-type clamping electric welding work box for pipeline operation comprises a folding electric welding box capable of being inflated with gas or deflated. The folding electric welding box is provided with an electric welding nozzle pipe and an inward turning type grabbing glove which penetrate through the folding electric welding box. The folding electric welding box is further provided with an inert gas pipe, a circulating pipe, a workpiece entering closing door and an exhaust valve. The head end and the tail end of the circulating pipe are connected to a set of opposite faces of the folding electric welding box respectively. The circulating pipe is sequentially provided with a circulating gas flow pump, a dust removal link, a gas filter link and a high-temperature heating link in the gas current flowing direction. A clamp mechanism used for clamping a workpiece to be welded is arranged at the bottom in the folding electric welding box. Compared with the prior art, the folding electric welding box is filled with inert gas, an operator carries out operation outside the folding electric welding box, and the internal inert gas is recycled constantly; thus, the use quantity of the rare gas is reduced, and emission of harmful gas is reduced; the environment is protected, and the safety of the operator is protected.

Description

Technical field [0001] The present invention involves a seal -type welding operating space, especially a pipeline operation. Background technique [0002] In order to pursue the high intensity of the welding point during welding, the metal melting is required to participate in other substances in the air during the welding process. Usually use inert gas to protect welding.The arcs between the welding wire and the arc between the welding wire welding wire workpiece are used as the arc welding of the heat source, but the price of inert gas is more expensive and the cost is large. Under the high temperature operation during the welding process, the harmful substances in the metal will be volatile, causing pollution to the surrounding environment.Causes damage to the health of the surrounding personnel. [0003] For example, a cyclic closed coal mines in 201410082359.8 illegal gas occurring device, including gas production unit, detection unit, cooling unit, and controller.The intern...

AI Technical Summary

Problems solved by technology

[0002] In order to pursue the high strength of the welding point during welding, it is necessary to avoid metal melting and other substances in the air during the welding process. Inert gas shielded welding is usually used, which uses argon or argon-rich gas as the protective medium, and adopts continuous feeding to melt The welding wire and the arc burning between the welding wire and the workpiece are used as the arc welding as the heat source, but the price of the inert gas is relatively expensive and the cost is high, and in the high temperature operation during the welding process, the harmful substances in the metal will be volatilized, causing pollution to the surrounding environment , causing damage to the health of those around

Images