Constant-pressure water supply system

Abstract

The invention provides a constant-pressure water supply system, and relates to the technical field of constant-pressure water supply. The constant-pressure water supply system comprises a pool, a water level sensor and a control system, the water level sensor is electrically connected with the control system, the control system comprises a regulator, a PLC control machine and a frequency converter, the output end of the PLC control machine is in communication with the input end of the frequency converter, the output end of the frequency converter is connected with water pumps, and the water pumps comprise the main water pump and the standby water pump, and pressure sensors and rotating speed sensors are installed at the output ends of the main water pump and the standby water pump. According to the constant-pressure water supply system, the PLC control system is utilized to enable the frequency converter to circularly control the main water pump and the standby water pump, so that the constant water pressure of a pipe network, the soft start of a water pump motor and the switching between the variable-frequency water pump and the power-frequency water pump are realized, the pressure sensor is used for detecting water pressure information of a water outlet of the main water pump and sending the water pressure information to the PLC control machine, the whole constant-pressure water supply system is simple in structure, waste of water resources is avoided, damage of water flow to water utilization equipment is reduced, and practicability is high.

Description

technical field [0001] The invention relates to the technical field of constant pressure water supply, in particular to a constant pressure water supply system. Background technique [0002] The constant pressure water supply system is a water supply system that uses pressure sensors, PLC and frequency converters as the central control device to ensure the continuous and constant water pressure of urban water supply. Compared with the traditional water supply system, the constant pressure water supply system has the advantages of advanced technology, constant water pressure, convenient operation, reliable operation, energy saving, and high degree of automation. [0003] Water is an indispensable and important part of production and life. Under the realistic conditions that water saving and energy saving have become the characteristics of the times, our country with shortage of water resources and electric energy has long been used in municipal water supply, high-rise buildin...

AI Technical Summary

Problems solved by technology

[0003] Water is an indispensable and important part of production and life. Under the realistic conditions that water saving and energy saving have become the characteristics of the times, our country with shortage of water resources and electric energy has long been used in municipal water supply, high-rise building water supply, industrial production cycle water supply, etc. The technology has been relatively backward and the degree of automation is low

It is mainly manifested in the peak period of water consumption, the supply of water is often lower than the demand, and the water pressure decreases and the supply exceeds the demand. In the low peak period of water consumption, the supply of water is often higher than the demand, and the water pressure rises and the supply exceeds the demand. , at this time, energy will be wasted, and water pipes may burst and water equipment may be damaged at the same time.

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