Gravity constant pressure water supply method

Abstract

The invention provides a gravity type constant-pressure water supply method. The gravity type constant-pressure water supply method comprises the steps: S1, eliminating off-line abnormal data, specifically, preprocessing a remote transmission signal, eliminating the off-line abnormal data, and ensuring the reliability of a remote transmission signal; S2, eliminating data jitter, specifically, preveneting frequent misoperation; S3, establishing a relay point, shortening delay, and achieving fuzzy control, specifically, according to the change condition of a water intake quantity, generating a corresponding adjusting coefficient, so that a system can quickly adjust the relay point water head; and S4, optimizing the control of an electric valve, and achieving the linear flow regulation, specifically, solving the sensitivity problem of the electric valve and the nonlinear flow regulation problem of the electric valve. The gravity type constant-pressure water supply method effectively solves the problems of large pressure fluctuation and water hammer phenomena in the gravity type water supply system, and the pipe network pressure fluctuates in a small range within a set threshold, and obviously tends to be stable. On the premise of meeting the water intake pressure of a user, the running stability of a pipe network is effectively guaranteed, and the service life of the pipe networkand the valve is positively prolonged.

Description

technical field [0001] The invention relates to the field of tap water supply for water supply and drainage, in particular to a gravity-type constant-pressure water supply method. Background technique [0002] In urban tap water supply, gravity water supply is often used. Through the action of gravity, water supply is carried out stepwise from the reservoir to the water plant and then to the urban area. The advantage of gravity water supply is energy saving, but the disadvantage is that the pressure is unstable and prone to water hammer, which will have a destructive effect on the pipe network and valves. In particular, the old pipelines in some urban areas are mainly distributed in the inner ring, and most of them are made of PE material. Due to the erosion and thinning of the inner wall over time, the pressure bearing capacity has been greatly reduced. According to actual requirements, the water head pressure of the inner ring pipe network should generally be controlled i...

AI Technical Summary

Problems solved by technology

However, due to factors such as the personal experience, professional quality, and sense of responsibility of the on-duty personnel, it has brought great uncertainty to the county's water supply security work, and the gravity-type water supply constant pressure work urgently needs to be upgraded.

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