Device for testing pipe resistance coefficient of water supply pipe network

Abstract

The invention relates to a device for testing a pipe resistance coefficient of a water supply pipe network. The device for testing a pipe resistance coefficient of a water supply pipe network comprises a pipe system, a pressure testing module, a flow testing module and a control system. The pipe system comprises a main pipe section, a branch pipe section, a front fire hydrant, a middle fire hydrant and a rear fire hydrant. The pressure testing module comprises pressure sensors. The pressure sensors are installed on the front fire hydrant and the middle fire hydrant. A rear control valve is arranged on the main pipe section. A front control valve is arranged on the branch pipe section. The pressure testing module is connected to the control system through an interface converter. The flow testing module comprises an ultrasonic flowmeter. The ultrasonic flowmeter is installed on the rear fire hydrant. An intelligent recording system is arranged in the control system. The device for testing a pipe resistance coefficient of a water supply pipe network is greatly developed in improvement of measurement accuracy, fast and accurate recording and high-efficiency data processing, provides a perfect method for accurate determination of a pipe resistance coefficient, and promotes the development of a pipe resistance actual measurement technology for a water supply pipe network.

Description

technical field [0001] The invention belongs to the technical field of environmental engineering, and in particular relates to a device for testing the resistance coefficient of a water supply pipe network. Background technique [0002] After years of operation of the water supply pipe network, due to the corrosion of the inner wall of the pipe, microbial adhesion, deposition and other reasons, the cross-sectional area of ​​the water in the pipe has been continuously reduced, and the head loss has increased, which seriously affects the flow capacity of the pipe. Therefore, a more accurate grasp of the water flow capacity of key pipe sections in the water supply network is of great significance for establishing a simulation model of the water supply network and realizing safe and rational operation of the water supply network. However, due to the long running time and long history of laying in the actual water supply pipe network, the resistance coefficients of different pipe...

AI Technical Summary

Problems solved by technology

[0037] To sum up, the "two-point method" test principle is relatively simple. Although the "three-point method" and "four-point method" are improved on the basis of the "two-point method", the test process is more complicated, and the test site conditions Often difficult to achieve, due to the complexity of the test process, it often causes more test errors, so it is not often used

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