Gas pipe network leakage detection method and system based on pressure parameter analysis

A technology of parameter analysis and leak detection, which is applied in the pipeline system, gas/liquid distribution and storage, mechanical equipment, etc., can solve the problems of many interference factors and difficulty in judging the underground pipeline network, and achieve high processing space and freedom, saving The effect of removing financial and material resources

Active Publication Date: 2021-11-23
上海观燃智能科技有限公司
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Problems solved by technology

There are many interference factors in the underground pipe network, and it is usually difficult to judge

Method used

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  • Gas pipe network leakage detection method and system based on pressure parameter analysis
  • Gas pipe network leakage detection method and system based on pressure parameter analysis
  • Gas pipe network leakage detection method and system based on pressure parameter analysis

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Embodiment Construction

[0025] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, wherein the exemplary embodiments and descriptions are only used to explain the present invention, but are not intended to limit the present invention.

[0026] like figure 1 As shown, the method for detecting leakage of natural gas pipeline network based on pressure parameter analysis according to the present invention

[0027] Step S1: establish a model of the on-site pipe section, set detection points to obtain a normal point curve; specifically, the following steps are included:

[0028] Step S11 : establishing the on-site pipe segment model and setting detection points. Set a pressure gauge at the inlet of the pipe section (as a source point) to detect the inlet pressure value; set a pressure gauge at the outlet of the pipe section (as a sink point) to detect the outlet pressure value; set a flow meter at the pipe section outlet (as a sink ...

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Abstract

The invention relates to a gas pipe network leakage detection method and system based on pressure parameter analysis. The method comprises the steps of S1, building a field pipe section model, and setting detection points to obtain a normal point curve; S2, formulating a standard for judging leakage; and S3, performing leakage detection and alarm according to real-time operation data. According to the gas pipe network leakage detection method, the balance between the leakage alarm timeliness and the leakage-free false alarm rate of the model is comprehensively considered, leakage determination is carried out based on scientific quantitative calculation, financial resources and material resources for detecting leakage through physical instruments are omitted, the requirements of a management system adopted by a current actual gas company can be better met, and the processing space and the degree of freedom are high; and by setting an alarm manner corresponding to values of delta% and n, a user can know the current alarm level and possible error conditions thereof, and the user can quickly perform leakage processing.

Description

【Technical field】 [0001] The invention belongs to the technical field of energy engineering automation, and in particular relates to a method and system for detecting leakage of a natural gas pipeline network based on pressure parameter analysis. 【Background technique】 [0002] In recent years, the urban gas pipeline network system has been developing continuously, involving every corner of our production and life. Gas pipelines are all over the city underground, and there are many factors such as pipeline corrosion by surrounding soil, influence of stray current, self-use aging and third-party damage, etc., and leakage often occurs. After the leakage, the gas belongs to flammable and explosive gas, which seriously threatens the personal and property safety of the surrounding people. In addition, the waste caused by leakage is also astonishing. The transmission difference of individual gas companies can reach more than 20%, and the company can only barely maintain the opera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17D5/02
CPCF17D5/02F17D5/005
Inventor 陈沁傅雷
Owner 上海观燃智能科技有限公司
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