In-service rigid hanger load measurement method

A rigid hanger and load technology, which is applied in the direction of measuring force, measuring device, and testing of mechanical parts, can solve the problems of limited working life of strain gauges, unfavorable workload of pipelines, etc., and achieve the effect of ensuring measurement accuracy

Active Publication Date: 2019-10-08
SUZHOU NUCLEAR POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the working life of the strain gauge is limited. If it is necessary to continue to measure the load of the boom after it is damaged, it is necessary to unload the boom and attach the strain gauge again, which is very unfavorable to the pipeline and requires a lot of work.

Method used

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  • In-service rigid hanger load measurement method
  • In-service rigid hanger load measurement method
  • In-service rigid hanger load measurement method

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0037] See attached figure 1 It is a schematic diagram of the structure of the rigid hanger 100, and the rigid hanger 100 is mainly assembled by the hanger rod 1, the connecting piece 2, the pipe clamp 3, the nut, the gasket, the pin shaft 4, and the like. The upper end of the boom 1 is connected with the rooting steel structure through a gasket and a nut or connected with the lifting lug 5 through a pin 4 . The gasket is a hemispherical gasket, which can ensure that the boom 1 can rotate freely at a small angle. The lower end of the boom 1 is connected with the pipe clamp 3 through the pin shaft 4, and the pipe clamp 3 is used to support the pipe. The above connection method can ensure that the rigid hanger 100 only bears the axial tension and does not bear the action of bending moment in any direction during normal operation.

[0038] For measuring...

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Abstract

The invention relates to the technical field of pipeline hangers, in particular to an in-service rigid hanger load measurement method. The method comprises the following steps: the hanging rod of therigid hanger is simplified to simply supported beams at two ends; assuming the axial tension borne by the hanging rod is T0, a transverse shear force F is applied to the midpoint of the hanging rod, the hanging rod is bent and deformed under the joint action of the T0 and the F, the deflection curve equation of the hanging rod after deformation is represented by w(x), the deflection of any point on the hanging rod is obtained, the deflection corresponding to the midpoint of the hanging rod is obtained, the influences of the axial tension T0 on bending and deformation of the hanging rod are quantized, a corresponding influence factor is deduced, the axial tension T0 of the hanging rod is deduced backwardly through measuring the transverse shear force F and the deflection at the action point, and the T0 is the rigid hanger load which needs to be measured. The method is simple and easy to operate, the measurement precision is high enough, in-service measurement can be realized, and the pipeline is not influenced during the measurement process.

Description

technical field [0001] The invention relates to the technical field of pipeline supports and hangers, in particular to a method for measuring the load of a rigid hanger in service. Background technique [0002] Soda pipelines are widely used in industry and power industry, and the weight of itself and the internal medium is carried by the support and hanger. Supports and hangers can be divided into three categories according to their functions: bearing the weight of the pipeline, limiting the displacement of the pipeline and controlling the vibration of the pipeline. The support and hanger that bears the weight of the pipeline can be divided into variable force spring hanger, constant force spring hanger, rigid hanger, fixed bracket, sliding bracket, etc. according to its form, and the rigid hanger is the most widely used. Both the variable force spring hanger and the constant force spring hanger are equipped with a load scale marked by the supplier according to the variabl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/26G01M13/00
CPCG01L1/26G01M13/00
Inventor 黄小波潘万军付勇
Owner SUZHOU NUCLEAR POWER RES INST
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