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Automatic control system for water level of water tower

An automatic control system and water tower technology, applied in the direction of control/regulation system, liquid level control, non-electric variable control, etc., can solve the problems of low control accuracy, high energy consumption, instability, etc.

Inactive Publication Date: 2015-06-10
任波
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AI Technical Summary

Problems solved by technology

[0003] In people's daily production and life, it is often necessary to control the water level. The water tower water level control system is a water supply system widely used in residential quarters in my country. The traditional control method has the disadvantages of low control accuracy, high energy consumption, and is very unstable.

Method used

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  • Automatic control system for water level of water tower
  • Automatic control system for water level of water tower
  • Automatic control system for water level of water tower

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Embodiment Construction

[0009] The fundamental purpose of the water level automatic control of the water tower is to keep the pressure of the entire water supply pipe network constant, so the idea of ​​this system is to use the frequency converter to adjust the speed of the water pump to control the flow, so that the water level of the water tower remains constant, and the pressure signal is obtained by the pressure instrument , The inverter is controlled by PLC, and PLC controls the cut-in and cut-out of several water pumps.

[0010] The constant pressure water supply system uses the frequency converter to adjust the speed of the pump to control the flow, so that the water level of the water tower remains constant. The pressure signal is obtained by the pressure instrument, and the frequency converter is controlled by the PLC. At the same time, the PLC controls the cut-in and cut-out of several water pumps. The system has manual and automatic control functions, and power frequency emergency operation...

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Abstract

The invention discloses an automatic control system for water level of a water tower. The automatic control system is characterized in that a constant-pressure water supply system utilizes a frequency changer to adjust rotating speed of a water pump to control flow so as to enable the water level of the water tower to remain unchanged. Pressure signals are acquired by a pressure instrument, the frequency changer is controlled by a PLC (programmable logic controller), and the PLC controls switch-in and switch-out of multiple water pumps. The automatic control system has manual and automatic control functions, power frequency emergency running can be realized during a frequency change failure, the frequency changer adopts a one-dragging-four mode, and each motor realizes soft start through the frequency changer, so that electric and mechanical impact is reduced. Switching of power frequency-variable frequency or variable frequency-power frequency of each motor is controlled by the PLC according to water consumption.

Description

technical field [0001] The invention relates to the technical field of water level control, and is an automatic control system integrating machinery, electronics and control technology. Background technique [0002] Water supply is an important industry related to the national economy and people's livelihood. With the development of society and the improvement of people's living standards, higher requirements are put forward for urban water supply. It is necessary to meet timely, accurate and safe water supply. If the manual method is still used, the labor intensity is high, the work efficiency is low, and the safety is difficult. Guarantee, for this reason the transformation of the water tower water level control automation system must be carried out. Driven by the ubiquity of automation devices in today's society, driven by the demand for control technology, the theory of control itself has made remarkable progress. The monitoring and control of the water level of the wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D9/12
Inventor 任波
Owner 任波
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