Flange with auxiliary sealing function

Abstract

The invention provides a flange with an auxiliary sealing function. The flange with the auxiliary sealing function comprises flange main bodies and an auxiliary sealing assembly, the auxiliary sealingassembly comprises installation circular rings, installation cylinders are arranged in the middles of the front ends of the installation circular rings, sealing parts are arranged between the installation cylinders and the flange main bodies, each sealing part comprises an inner sleeve and an outer sleeve, an adjusting circular ring is connected to the front end of each installation cylinder, therear end of each adjusting circular ring is connected with an abutting ring, and the rear end of each abutting ring abuts against the front end of the corresponding outer sleeve. Compared with the prior art, the flange has the beneficial effects that overall structure is novel, after the two flanges are connected and locked by bolts, adjusting bolts are rotated, so that the adjusting circular rings move in the direction of the installation cylinders, at the moment, the inner sleeves move opposite to the outer sleeves, the inner sleeves shrink inwards to press edges of the two flanges tightlyunder the action of taper holes of the outer sleeves, so that the sealing performance between the inner sleeves and the two flanges is effectively guaranteed, the auxiliary sealing effect on a connecting position of the flanges is achieved, corrosion aging rate of a pad between the flanges is effectively relieved, and the sealing performance between the flanges is guaranteed.

Description

Technical field [0001] The invention relates to the technical field of flanges, in particular to a flange with an auxiliary sealing function. Background technique [0002] Flanges are also called flange flanges or flanges. Flanges are parts that connect between shafts and shafts. They are used for connection between pipe ends. They are also used for flanges on the inlet and outlet of equipment for two The connection between equipment, such as the flange of the reducer; flange connection or flange joint, refers to the detachable connection of the flange, gasket and bolt as a set of combined sealing structure; pipe flange refers to The flange used for piping in the pipeline installation refers to the inlet and outlet flanges of the equipment when used on the equipment. [0003] At present, the existing connections between flanges and flanges are all locked by bolts, and there is a gasket between the two flanges for sealing. However, the gasket is easy to be Corrosion, which in turn...

AI Technical Summary

Problems solved by technology

[0003] At present, the connections between the existing flanges are all locked by bolts, and there is a gasket between the two flanges for sealing. Corrosion, which in turn affects the tightness of the connection between the measuring flanges

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