Device and method for actively detecting leakage of gas system and protecting gas system

Abstract

The invention discloses a device and a method for actively detecting leakage of a gas system and protecting the gas system. The device is applicable for detecting different sections of the gas system of a user. The detection device consists of a gas supply valve and an electric control system, wherein an electric controller of the electric control system consists of gas pressure sensors (4), an electric control execution mechanism (3) of the gas supply valve, a sensitive-type gas alarm and a data processor; a gas inlet end of an opening-closing device (2) of the gas supply valve is provided with a connecting opening (1.1) connected with the first gas pressure sensor (4), and a gas outlet end of the opening-closing device (2) is provided with a connecting opening (1.2) connected with the second gas pressure sensor (4); and the first gas pressure sensor and the second gas pressure sensor are connected to the data processor. The detection device can actively and comprehensively detect and protect the gas system of the user and also provide a safe and convenient gas usage environment for the gas user.

Description

technical field [0001] The invention relates to the technical field of detection and protection of gas systems, in particular a device and method for actively detecting leakage and protection of gas systems suitable for detecting different sections of user gas systems. Background technique [0002] At present, the gas leakage detection technology of the gas system often adopts the "gas-sensitive" detection method, using electronic components sensitive to "gas" as sensors, also known as: combustible gas sensors, supplemented by a combination of corresponding electronic circuits. There are two major problems with the "gas sensitive" detection method: first, in the space where gas is used (usually the kitchen), the gas sensor is easily polluted by oil mist, water vapor, etc., which makes it lose its function. The second is that the "gas sensitive" detection method is a passive detection, and the detection space is limited, and it can only detect the space near the installation ...

AI Technical Summary

Problems solved by technology

There are two major problems with the "gas sensor" detection method: the first is that in the space where gas is used (usually the kitchen), the gas sensor is easily polluted by oil mist, water vapor, etc., causing it to lose its function

The second is that the "gas-sensitive" detection method is a passive detection, and the detection space is limited. It can only detect the space near the installation point.

There are also technical solutions (Chinese patent: CN03159275.9; CN200710148666.1) that can only perform leak detection on the gas system in the "user section" before using the gas, and cannot perform "leakage" detection when using the gas

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