Municipal pipeline tail end drainage control device

Abstract

The invention relates to the technical field of municipal pipeline operation, in particular to a municipal pipeline tail end drainage control device. The device comprises a fire hydrant (1), a water inlet connecting pipe (2), an electromagnetic valve (3), a main pipe (6) and an electromagnetic flowmeter (7) which are sequentially connected; a turbidity sensor (4) is mounted on the main pipe (6); the electromagnetic valve (3), the turbidity sensor (4) and the electromagnetic flowmeter (7) are all connected with a PLC automatic control system (5); and the tail end of the main pipe (6) is connected with a drainage pipe (10). The device can realize automatic control and record changes of parameters such as turbidity, flow, time and the like in the municipal water supply pipeline tail end flushing drainage process, is used for finely managing the municipal pipeline tail end drainage process, saves the drainage quantity, improves the drainage efficiency, and improves the water quality of a water supply pipeline.

Description

technical field [0001] The patent of the present invention relates to the technical field of pipeline operation, in particular to a water discharge control device at the end of a municipal pipeline. Background technique [0002] Microorganisms grow inside the municipal water supply pipeline, which is the weak link of water quality in the water supply system. The inner wall of the pipeline will form deposits under the combined action of physics, chemistry and microorganisms, resulting in water quality risks such as high turbidity of water supply and substandard microbial indicators. With the continuous advancement of the urbanization process, the scale of the transmission and distribution pipe network in the urban municipal water supply system continues to expand. On the one hand, the long water supply pipe network leads to low water flow rate and reduced residual chlorine; on the other hand, at the end of the urban municipal water supply pipes, due to long-term water stagna...

AI Technical Summary

Problems solved by technology

The method of discharging water at the end of municipal pipelines is a cleaning method for daily operation and maintenance of urban water supply pipelines. The common operation method of discharging water at the end is that the operator directly opens the fire water to discharge water, and manually takes samples at regular intervals to test the turbidity of the water samples. After the turbidity reaches the standard Stop releasing water, this method is inefficient, resulting in a lot of waste of tap water

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