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Natural gas monitoring system with multi-temperature reliability

A monitoring system and reliability technology, applied in fluid tightness testing, thermometers, piping systems, etc., can solve problems such as range adjustment, brain and nervous system damage, leakage, etc. that are not easy to monitor

Inactive Publication Date: 2021-04-06
PETROCHINA PLANNING & ENG INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, once natural gas leaks indoors, it will cause poisoning to varying degrees. Severe poisoning will cause damage to the human brain and nervous system to varying degrees. Therefore, natural gas pipelines need to be monitored.
[0003] At present, for the monitoring of natural gas pipelines, the optical fiber temperature measurement system is more advanced and widely used, but the optical fiber temperature measurement system is usually only suitable for the leakage of small diameter pipelines. The uncertainty of the distance from the optical fiber is large, and the system may not be able to check the temperature change in time or even at all, and cannot timely alarm the leakage. In addition, the existing monitoring device is not easy to adjust the monitoring range during use, which relatively reduces Availability of the device

Method used

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  • Natural gas monitoring system with multi-temperature reliability
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  • Natural gas monitoring system with multi-temperature reliability

Examples

Experimental program
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Effect test

Embodiment 1

[0032]ReferFigure 1-7A natural gas monitoring system having multi-temperature reliability, including natural gas pipeline 1, curved plate 2, optical fiber temperature sensor 3, and fill light 4, and the curved plate 2 corresponds to the outer side of the natural gas pipeline 1, curved panel 2 Two curved pass grooves 5 are opened away from the outer wall of the natural gas pipeline 1, and the two arcuate pass grooves 5 are disposed at both ends of the curved plate 2, and the arcuate slot 5 slides to connect the arcuate plate. 6, the fiber temperature sensor 3 corresponds to the outer side wall of the arc plate 6, and the sensing head of the optical fiber temperature sensor 3 penetrates to the inside of the curved plate 2 and is disposed outside the natural gas pipeline 1, the arc-shaped plate 6 The extension plate 7 is fixed to the left and right walls, and the filling lamp 4 is fixedly attached to the inner side of the extension plate 7 and disposed relative to the outer side wall o...

Embodiment 2

[0038]ReferFigure 1-7The embodiment is different from the first embodiment in that the arcuate plate 2 is opened away from the side wall of the casing 11 (not shown in the figure), and the inner wall of the second groove is fixed. The two spring (not shown), and the second spring is fixed from one end of the second groove (not shown in the figure), and the tap of the U-shaped part is rotated in the direction (not drawn in the figure) Out), and the roller is rolled with the outer wall of the natural gas pipeline 1, by replacing the permanent magnet 17 connected between the curved plate 2 and the natural gas conduit 1 into a roller, and multi-set arcuate plate can be achieved by means of an external traction device. 2 Sports in the outer side of the natural gas pipeline 1, in turn, it is possible to perform temperature monitoring in the natural gas in the natural gas pipeline 1 while continuously movement, and the application of the device can be used, and the long-range monitoring ca...

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Abstract

The invention belongs to the technical field of natural gas monitoring, and particularly relates to a natural gas monitoring system with multi-temperature reliability. The system comprises a natural gas pipeline, an arc-shaped plate, optical fiber temperature sensors and a light supplementing lamp. The arc-shaped plate is correspondingly connected to the outer side of the natural gas pipeline; two arc-shaped through grooves are formed in the outer side wall, away from the natural gas pipeline, of the arc-shaped plate, the two arc-shaped through grooves are correspondingly formed in the two ends of the arc-shaped plate, arc-shaped supporting plates are slidably connected in the arc-shaped through grooves, and the optical fiber temperature sensors are correspondingly connected to the outer side walls of the arc-shaped supporting plates; and the sensing heads of the optical fiber temperature sensors penetrate to the inner side of the arc-shaped plate and is arranged on the outer side of the natural gas pipeline. A single driving source is adopted, the production cost is relatively reduced, the monitoring device can be adjusted according to the change of the natural gas pipeline so as to meet the use requirements of the natural gas pipelines with different pipe diameters, and the use range of the device is enlarged.

Description

Technical field[0001]The present invention relates to the field of natural gas monitoring techniques, and more particularly to a natural gas monitoring system having a multi-temperature reliability.Background technique[0002]Natural gas is an indispensable fuel for cooking in home life. Natural gas is delivered to various communities through pipelines. However, once natural gas produces leaks to cause poisoning, severe poisoning will cause varying degrees of damage to varying degrees, and there is a need to monitor natural gas pipelines.[0003]At present, there are more advanced fiber temperature measuring systems, but the fiber-optic temperature measuring system is usually only applicable to the leakage of small pipe diameter pipes. When a large pipe diameter is tightly leaked, due to leakage points The uncertainty with the fiber distance is large, and the system may not be in timeless and even at all, the temperature change is not detected, and the leak is not allowed in time, and t...

Claims

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Application Information

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IPC IPC(8): G01M3/00G01K11/32G08C17/02F17D5/02
CPCG01M3/002G01K11/32G08C17/02F17D5/02
Inventor 陈进殿郝迎鹏黄韩景宽梁鹏赵忠德孙春良沈鑫
Owner PETROCHINA PLANNING & ENG INST