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在工业和城镇生活供水系统中;用水量是随时变化的,并要求供水压力基本恒定。传统的方法是通过调节出水阀门来改变水泵的输出流量,在实际用水量小于水泵额定流量的情况下,会使供水压力大大高于系统的设计水压(由于离心式水泵流量下降时,扬程将相应提高),这不仅浪费大量的能量,还因此而增加了管路泄漏、损坏等故障的发生率。本文介绍一种采用8031单片机控制的恒压自动供水系统,能在保持供水管路水压恒定的情况下,供水流量可以从零到水泵最大输出水量之间连续调节,并具有电机软启动,定时供水等多种功能。本系统运行稳定、可靠,节电、节水效
In industrial and urban domestic water systems, the amount of water used varies from time to time, and the water supply pressure is essentially constant. The traditional method is to adjust the outlet valve to change the output flow of the pump. When the actual water consumption is less than the rated flow of the pump, the pressure of the water supply will be greatly higher than the system design pressure (due to the decrease of centrifugal pump flow, A corresponding increase), which not only waste a lot of energy, but also increase the pipeline leakage, damage and other failure rates. This article describes a kind of constant pressure automatic water supply system controlled by 8031 single chip microcomputer, which can continuously adjust the water supply flow from zero to the maximum output water volume of the pump while maintaining the constant water pressure in the water supply line, and has the advantages of soft start, Water and other functions. The system is stable, reliable, energy-saving, water-saving effect