Pipeline rigid support mechanism of centrifugal pump test bed and ascending and descending adjustment method of pipeline rigid support mechanism

Abstract

The invention discloses a pipeline rigid support mechanism of a centrifugal pump test bed, comprising a chassis (1), a static support (3) and a moving support (10), wherein a jack (7) is arranged on the static support by a jack support plate (5) and a jack positioning circular ring (6), and the moving support is connected with the jack by a moving baffle (9); a support pillar (13) is arranged on the moving support, and the support pillar is externally connected with a vertical pipe tightening ring (14). Fixed support to a vertical pipe is added, stress caused by swinging of a horizontal straight pipe and the vertical pipe is avoided, stress caused by vibration of the vertical pipe due to valve flow regulation is reduced, safety is enhanced, capital is saved, and after the horizontal straight pipe and the vertical pipe at a bent pipe section are wholly fixed, ascending and descending can be realized simultaneously; whole moving after integral fixation with a pipeline is also realized, and the time for mounting and connecting a centrifugal pump and a pressure measurement pipeline is shortened.

Description

technical field [0001] The invention relates to a support mechanism and a lifting adjustment method thereof, in particular to a support mechanism applied to a section of a discharge pressure measuring pipe of a centrifugal pump test bench and a lifting adjustment method thereof. Background technique [0002] In the discharge pressure measuring pipe section of the centrifugal pump open test bench, the high-pressure valve is heavy, and it is convenient to operate the valve to adjust the flow rate. From the perspective of safety, the high-pressure valve is often placed horizontally on the ground. The upstream of this valve is 25-42MPa, and the downstream is 1.0Mpa. The upstream of this valve is a vertical pressure measuring pipe, a horizontal straight pipe and a vertical pipe, which are connected and welded by elbows to form a whole pipe section. Among them, the wall thickness of the steel pipe at this pipe section is generally 15-36 mm, and the weight is heavy, so the horizont...

AI Technical Summary

Problems solved by technology

[0003] At present, the hydraulic mechanism is used to support and lift the horizontal straight pipe, which is a non-rigid support, and there is a hidden danger that it cannot be supported after a fault is released; or the screw structure mechanism is used to rotate to realize the support and lifting of the horizontal straight pipe, but only Can support straight horizontal pipes, but not vertical pipes

During the connection process of the test pipeline, the horizontal straight pipe and the vertical pipe will generate stress due to lifting and swinging, and there will be stress concentration on the welding part between the pipelines. Once leakage occurs, the huge impact force generated by 25-42MPa will It will cause casualties, and the test bench workshop will be destroyed, which will have a great impact

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