Mounting and load monitoring methods for rigid hangers

A rigid hanger and load monitoring technology, applied in the field of monitoring, can solve problems such as rigid hanger load loss and pipeline system safety impact, and achieve high data accuracy and simple data acquisition methods

Active Publication Date: 2020-12-04
苏州国投华科能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Loss of load on the rigid hanger of the riser can have a significant impact on the safety of the piping system

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Below in conjunction with the examples, the specific implementation of the present invention will be further described in detail. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0021] The installation and load monitoring method applicable to rigid hangers is characterized by comprising the following steps:

[0022] First, install the strain sensor on the rigid hanger, and read the cold-state strain value ε on the hanger after the piping system is installed and used C .

[0023] After that, query the elastic modulus E corresponding to the current rigid hanger material at room temperature 0 , according to the relation σ C =E 0 ×ε C Calculate the tensile stress σ in the cold state C .

[0024] Next, obtain the actual load F of the rigid hanger material C . Specifically, assuming that the cross-sectional area of ​​the rigid suspender where the strain sensor is installed is S, ...

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PUM

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Abstract

The invention relates to a mounting and loading monitoring method suitable for a rigid hanging bracket. The method comprises the following steps: before mounting, mounting a strain sensor on the rigidhanging bracket; reading a cold state strain value of a suspender after a pipeline system is mounted and is not used, and reading a hot state strain value after the pipeline system operates normallyand stably; and inquiring the corresponding elasticity modulus of a current rigid hanging bracket material at normal temperature and working temperature, acquiring a cold state actual mounting load and a hot state actual working load of the rigid hanging bracket, and comparing the loads with a designed value for judgment. Therefore, the load of the rigid hanging bracket can be monitored and the cold state actual mounting load and the hot state actual working load of the rigid hanging bracket are acquired, so that the rigid hanging bracket can be managed and controlled conveniently by back endstaff. The mounting and loading monitoring method is simple in data acquisition mode, can acquire data by means of auxiliary computing of a computer and is high in data precision. Judgment also can beexecuted by adopting software in an auxiliary manner, so that automatic monitoring under unmanned supervision is achieved.

Description

technical field [0001] The invention relates to a monitoring method, in particular to a method suitable for installation and load monitoring of a rigid hanger. Background technique [0002] High-temperature and high-pressure steam-water pipelines are an extremely important part of power plants and chemical plants. When selecting supports and hangers for high-temperature and high-pressure steam-water pipeline systems, vertical pipelines (hereinafter referred to as risers) must and can only be equipped with a set of rigid hangers or rigid hangers. Bracing device, which is an important part of the support and hanger of high-temperature and high-pressure steam-water pipelines, especially the four major pipelines (main steam pipeline, high-temperature reheat steam pipeline, low-temperature reheat steam pipeline, high-pressure water supply pipeline, high-pressure bypass steam pipeline and low pressure bypass steam line). The rigid hanger of the riser plays the role of bearing the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L3/00G01L5/00
Inventor 郝旭国潘兰英王琴张探张玉超
Owner 苏州国投华科能源科技有限公司
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