High-temperature and high-pressure bellow compensator

Abstract

The invention discloses a novel high-temperature and high-pressure bellow compensator which comprises a left connection pipe 1, a bellow left connection pipe 2, a bellow 3, a bellow right connection pipe 4, an inner casing pipe 5, sliding bearings 6 with the self-lubricating characteristic and a middle ring 7. The novel high-temperature and high-pressure bellow compensator is characterized in that the inner surface of the bellow left connection pipe 2, an annular inner convex ring, the outer surface of the inner casing pipe 5 and an annular outer convex ring form a sliding bearing bush; the two sliding bearings 6 with the self-lubricating characteristic are clamped on two sides of the middle ring 7, inserted into the bellow left connection pipe 2 and sleeved on the inner casing pipe 5; and the bellow left connection pipe 2, the inner casing pipe 5, the two sliding bearings 6 with the self-lubricating characteristic and the middle ring 7 form a sliding bearing supporting friction pair structure. A bellow deforms slightly in the radial direction under the lateral torque action, thus the capacity of resisting radial bending deflection of the compensator is enhanced.

Description

technical field [0001] The invention relates to a high-temperature and high-pressure bellows compensator, which belongs to the technical field of pipeline components. Background technique [0002] High temperature and high pressure bellows compensator is an important part of high temperature and high pressure pipe network. Leakage, rupture and other defects of the high temperature and high pressure bellows compensator will bring large or small abnormal operation to the pipe network system and even cause major accidents. Through the analysis of the failed bellows compensator, the bellows compensator deviates from the design position due to various reasons, and the friction pair structure of the existing compensator has a large matching gap, which causes the bellows to be subjected to lateral torque, and the bellows is partially subjected to radial unevenness. The symmetrical deformation stress makes the overall geometric axis of the bellows bend, and the working state of the...

AI Technical Summary

Problems solved by technology

Leakage, rupture and other defects of the high temperature and high pressure corrugated pipe compensator will bring large or small abnormal operation to the pipe network system and even cause major accidents

Through the analysis of the failed bellows compensator, the bellows compensator deviates from the design position due to various reasons, and the friction pair structure of the existing compensator has a large matching gap, which causes the bellows to be subjected to lateral torque, and the bellows is partially subjected to radial unevenness. The symmetrical deformation stress makes the overall geometric axis of the bellows bend, and the working state of the bellows and the internal stress of each bellows exceed the designed working range, which is the cause of the bellows compensator rupture or even blasting

Images