Intelligent shutoff method for abnormal flow of liquid pipeline

Abstract

According to an intelligent shutoff method for abnormal flow of a liquid pipeline, multiple stages of abnormal flow detection control assemblies are arranged on the same water conveying pipeline of a large user or an urban water supply looped network and water inlet and outlet branches in a segmented mode, and each stage of abnormal flow detection control assembly comprises a sensor assembly, an electric control valve, a power source and a setting judgment module; each sensor assembly feeds back water flow and water pressure signals in a water conveying pipeline interval where the sensor assembly is located to the setting judgment module, and the setting judgment module carries out comparison, analysis and judgment according to a detected water quantity value and a signal receiving time length with a set water quantity, a setting time fixed value and a minimum water quantity detection value; when the set water volume is reached or the setting time fixed value is exceeded, the setting judgment module controls the electric control valve to be closed; and when the minimum detection value of the water quantity is reached and the setting time fixed value is reached, the setting judgment module controls the electric control valve to be closed. Segmented pipeline detection can be achieved, and it is guaranteed that a user or a worker can rapidly determine water leakage and running intervals.

Description

technical field [0001] The invention relates to the technical field of water saving, and more specifically relates to an intelligent shutdown method for abnormal flow of a liquid pipeline. Background technique [0002] At present, in cities and towns with better economic development, the mainstream water meters are intelligent remote water meters, which are divided into those with electric control valves and those without electric control valves. There are many manufacturers, and there are many types of products, with similar functions. The main feature of the current intelligent remote water meter is to use modern microelectronic technology, modern sensor technology, smart IC card technology, etc. to measure and charge water consumption, and can realize flow control, such as IC card smart water meter. Regarding the valve control function, it is mainly used to prevent malicious arrears of water bills. [0003] However, there are some defects in the current intelligent remo...

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Problems solved by technology

[0007] The technical problem to be solved in the present invention is to provide an intelligent shut-off method for abnormal flow of liquid pipelines, so as to solve the problem that the current intelligent remote water meter does not have the function of abnormal protection of pipeline flow and the linkage protection function of multi-stage electronic control valve system. Problems, to reduce the phenomenon of running, emitting, dripping and leaking of water flow, realize timing, directional and quantitative water control, realize periodic inspection and maintenance in intervals, and achieve the purpose of water saving

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