Gas valve pit leakage monitoring terminal

Abstract

The invention relates to a gas valve pit leakage monitoring terminal, which is characterized by mainly comprising an I / O (input / output) port, a 16-bit RISC (reduced instruction set computer) core, an RAM (random access memory) / ROM (read only memory), an A / D (analog / digital) converter, a temperature monitoring signal conditioning unit, a water level detecting probe, an equipment abnormality monitor, an infrared spectral component analyzer and a mounting area water level and gas sampling unit. The gas valve pit leakage monitoring terminal has the advantages that by combining with the wireless GPRS (general packet radio service) transmission technology, low-power-consumption control technology, anti-theft alarming technology and gas leakage detecting technology, manual polling manner for preventing gas leakage of pipelines is changed into a modern automatic manner of day-and-night real-time monitoring, and accordingly, preventing and alarming capacity for leakage of the gas network of the whole city can be perfected and improved, and harm caused by gas leakage accidents is reduced. Besides, the gas valve pit leakage monitoring terminal has the advantages of high automation degree, simplicity and convenience in maintenance and repair, low cost and the like.

Description

technical field [0001] The invention relates to a gas valve well leakage monitoring terminal, which belongs to the technical field of gas valve well leakage monitoring. Background technique [0002] Among all kinds of industrial pipelines, gas pipelines are the most widely distributed high-risk pressure pipelines in the city and involve the most areas. From a safety point of view, the gas valve well is a place where equipment is relatively dense on the entire gas pipeline network. Due to factors such as regional temperature differences, land subsidence, weld defects, long-term disrepair, pipeline corrosion, and external force damage, etc., the valve may be damaged. If the valve in the well is not well sealed or the surrounding pipeline leaks, the gas is easy to form accumulation in the valve well, and the explosion and deflagration accidents caused by this happen from time to time, especially as the gas pipeline network becomes more and more complex and the pipeline becomes ...

AI Technical Summary

Problems solved by technology

From a safety point of view, the gas valve well is a place where equipment is relatively dense on the entire gas pipeline network. Due to factors such as regional temperature differences, land subsidence, weld defects, long-term disrepair, pipeline corrosion, and external force damage, etc., the valve may be damaged. If the valve in the well is not well sealed or the surrounding pipeline leaks, the gas is easy to form accumulation in the valve well, and the explosion and deflagration accidents caused by this happen from time to time, especially as the gas pipeline network becomes more and more complex and the pipeline becomes longer and longer. Hidden dangers are becoming more and more prominent, seriously threatening social public safety and public interest

At present, the commonly used monitoring methods for gas valve well leakage include artificial olfactory detection, manual instrument inspection, and ground plant observation, etc., but these commonly used monitoring methods have certain disadvantages, such as: low efficiency, poor real-time performance, limited monitoring range, and high human resource costs. , unable to effectively warn, etc.

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