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

Purging device for pipe welding

A purification device and pipe technology, applied in auxiliary devices, welding accessories, welding equipment, etc., can solve the problems of welding operation interruption, thermal damage, etc., and achieve the effect of easy maintenance

Inactive Publication Date: 2014-11-19
朴晋盱
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] That is, there is a problem that after being inserted into the pipe, the left and right airbags expanded by the air supplied by the air supply and the exhaust part are damaged by the heat generated during welding, so that the welding operation is interrupted and the damaged airbags need to be removed. Replace with another airbag

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
  • Purging device for pipe welding
  • Purging device for pipe welding
  • Purging device for pipe welding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] Next, preferred embodiments of the purification apparatus for pipe welding according to the present invention will be described in detail with reference to the accompanying drawings. In addition, in describing the present invention, when a specific description of a related well-known configuration or function is clear to a person of ordinary skill in the art, a detailed description thereof will be omitted.

[0028] In addition, in the following description, the same code|symbol is attached|subjected to the same component used for each different position.

[0029] like Figure 2 to Figure 4 As shown, the cleaning device 1 for pipe welding according to the present invention includes a sealing member 10 , a connecting pipe 20 , and an air control unit 30 , and the sealing member 10 is further equipped with a flame retardant barrier layer 50 .

[0030] The sealing member 10 is inserted into the inside of the pipe P to be welded on the left and right sides of the welded par...

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

PropertyMeasurementUnit
limiting oxygen indexaaaaaaaaaa
Login to View More

Abstract

The present invention relates to a purging device for pipe welding, and more particularly, to a purging device for pipe welding which is capable of preventing a purging device disposed inside a pipe from being damaged by heat generated during welding. The present invention includes a pair of sealing tools, which are disposed inside the pipe, expand using air supplied thereto, and are in contact with the inner wall of the pipe, and a connection pipe, which is a cylindrical body disposed between the pair of sealing tools, wherein the sealing tools are respectively fixed to either side end and the connection pipe is provided with a gas nozzle for discharging inert gas supplied from the outside. The sealing tool further includes a blocking layer that is flame retardant and is coupled in such a manner as to surround the outer circumferential surface.

Description

technical field [0001] The present invention relates to a purification device for pipe welding. More specifically, the present invention is a purification device for pipe welding capable of preventing damage to the purification device arranged inside the pipe from heat generated during welding. Background technique [0002] The so-called purification (Purging) operation refers to the following operation: in order to prevent the oxidation of the weld bead and ensure the welding quality when connecting the pipes by welding, a blocking film is installed at one end of each pipe to be welded, and each pipe to be welded is After the welded parts are facing each other and fixed, and after the welded parts are taped and sealed, an inert gas such as argon (Ar) is injected into the inside of the pipe in order to prevent oxidation of the weld bead. [0003] After the above-mentioned cleaning operation is completed, after removing the blocking film and removing the argon gas injected in...

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): B23K37/00B23K9/16
CPCB23K9/326B23K37/0531B23K2101/10B23K37/00B23K9/16
Inventor 朴晋盱
Owner 朴晋盱