A polymer lining extension coupling

Abstract

The invention discloses a macromolecule anti-corrosion lining lengthened coupling which comprises a center sealing sleeve, an upper isolation sleeve and a fixing sleeve. A telescopic rubber sleeve isarranged on the outer side of the center sealing sleeve, a lining coupling is installed on the inner side of the center sealing sleeve, the surface of the lining coupling is provided with a sliding groove, the outer side of the sliding groove is provided with buckle plates, a lining pipe connection sleeve is fixed to the middle of the center sealing sleeve, the inner side of the lining pipe connection sleeve is provided with a sealing ring, a lengthened pipe is arranged above the center sealing sleeve, an annular groove is fixed to the outer wall of the lengthened pipe, a cutting rail is welded to the inner wall of the upper isolation sleeve, the upper isolation sleeve is located between the buckle plates, a sleeve ring is arranged above the fixing sleeve, and the fixing sleeve is locatedabove the lengthened pipe. The macromolecule anti-corrosion lining lengthened coupling has the ultrahigh corrosion resistance, and is provided with multiple connection fixing sleeve ports, layer-by-layer connection is achieved, the structure is compact, long-distance anti-corrosion protection can be achieved on a lining pipe, and flanging of a pipe opening of the lining pipe can be prevented.

Description

technical field [0001] The invention relates to the technical field of lining pipe coupling devices, in particular to a polymer lining extension coupling. Background technique [0002] The tubing lining coupling is based on the tubing extension coupling, through special processing technology, the polymer material (UHMW-PE) is lined on the J value part of the extension coupling, so as to achieve the anti-corrosion effect. The polymer material adopts a molecular weight of 2 million modified ultra-high molecular weight polyethylene, the actual temperature resistance is 100 ℃. [0003] However, the existing lining collars are short in length, unable to provide long corrosion protection for the lining pipe, and their own structural strength is insufficient, and they are prone to falling off due to various environmental factors when the couplings are installed on the lining pipe , and at the same time, it is easy to cause damage to the nozzle position of the inner liner, and even...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a polymer lining extension collar to solve the problem that the existing lining collar proposed in the above-mentioned background technology is short in length and cannot provide longer corrosion protection for the liner pipe. Insufficient structural strength, easy to fall off, and easy to cause damage to the nozzle position of the inner liner

Images