Automatic Water Supply Control System of Graded Constant Pressure by Variable Frequency Speed and Its Application to Pipeline Irrigation

2010 ◽  
Author(s):  
Wu-quan He ◽  
Ming-ke Cai ◽  
Yu-bao Wang ◽  
Xiao-jian Wang
Keyword(s):  
Control System ◽  
Water Supply ◽  
Constant Pressure ◽  
Variable Frequency

Research of Constant Pressure Water Supply System Based on PLC

2014 ◽  
Vol 624 ◽  
pp. 465-468 ◽  
Author(s):  
Mei Fang Wan
Keyword(s):  
Control System ◽  
Water Supply ◽  
Constant Pressure ◽  
Frequency Converter ◽  
Supply System ◽  
Water Supply System ◽  
Variable Frequency ◽  
Variable Flow ◽  
Pressure Water ◽  
Pump Pressure

This article designs one constant pressure water supply system based on PLC. In this system, PLC and frequency converter is the main control system. Moreover, the water-supply system with a variable frequency and constant pressure is based on PCL and combines with water supply pump, pressure gage and other equipment. Water supply system realizes the water supply of constant pressure and variable flow.

Design a PLC-Based Variable-Frequency Governing Pressure-Constant Water-Supply Control System

2014 ◽  
Vol 1044-1045 ◽  
pp. 755-758
Author(s):  
Xin Hui Yang
Keyword(s):  
Control System ◽  
Water Supply ◽  
Pressure Sensors ◽  
Variable Frequency ◽  
Pipe Network ◽  
Monitoring And Control ◽  
Control Software ◽  
Industrial Control ◽  
Time Basis ◽  
And Control

This paper provides a design for a PLC-based, variable-frequency governing, pressure-constant, automatic water-supply control system. This design is based on the current situations at the water supply plants found in small and medium cities in China. In this control system, the pressure signal across the pipe network is acquired by pressure sensors and then transmitted to PID modules in the PLC in order to control switching between pump motors. At the same time, the PLC is connected with a personal computer for industrial control purposes. On this computer, monitoring and control software has been installed in order to monitor and control the pressure-constant water-supply system on a real-time basis.

Based on PLC Control of Double Constant Pressure No Tower Water Supply System Design

2014 ◽  
Vol 511-512 ◽  
pp. 1002-1007 ◽  
Author(s):  
Lie Zhun Wang
Keyword(s):  
Control System ◽  
Service Life ◽  
Water Supply ◽  
Constant Pressure ◽  
Supply System ◽  
Water Supply System ◽  
Repair Work ◽  
Soft Start ◽  
Soft Starter ◽  
Short Service Life

In view of the traditional double motor constant pressure water supply system without tower in the operation process of the problem of short service life, the design of a new type of dual voltage no tower water supply control system. The control system uses PLC, soft starter and frequency converter technology, the soft starter can make the motor to realize soft start and soft stop, no impact on the motor, can extend the service life of the motor, avoid pumping station "door" damage, reduce repair costs and repair work. The running results show that, after the reformation of water supply system can save more than 21% energy, but also improve the quality and reliability of the water supply.

Constant Pressure Water Supplying System with Frequency Conversion Based on PLC /HMI/VVVF

2012 ◽  
Vol 490-495 ◽  
pp. 370-372
Author(s):  
Xiao Yu Wang
Keyword(s):  
Control System ◽  
Water Supply ◽  
Environmental Protection ◽  
Frequency Conversion ◽  
Constant Pressure ◽  
Flow Chart ◽  
System Flow ◽  
Software Program ◽  
Pressure Water

The application of PLC、HMI and VVVF are introduced in constant pressure water supplying system with frequency conversion. The Principle diagram is analyzed, the Control System flow chart and Software program are designed. Through in-situ operation, the system has been proved good at reliability、stability、simplicity and intuition ，achieved constant pressure water supply and environmental protection requirements .

Energy-Saving Applying Study of Fuzzy Control in the Variable Frequency and Constant Pressure Water Supply System

2012 ◽  
Vol 591-593 ◽  
pp. 1307-1310
Author(s):  
Yao Bin Hu ◽  
Yu Lin Wang ◽  
Liang Bin Hu ◽  
Peng Wei
Keyword(s):  
Fuzzy Control ◽  
Water Supply ◽  
Energy Saving ◽  
Constant Pressure ◽  
Supply System ◽  
Water Supply System ◽  
Fuzzy Arithmetic ◽  
Variable Frequency ◽  
Pipe Network ◽  
Pressure Water

A new energy-saving method of variable frequency and constant pressure water supply system based on fuzzy control theory and software control technique is presented in this paper. Firstly, collecting the pipe network pressure periodically through the pressure sensor, the differential pressure signal will be sent into fuzzy controller after comparing the pipe network pressure with the set pressure. Then send a precise control quantity into the PID regulator to control output frequency of the frequency converter after a series of fuzzy arithmetic and solution of fuzzy arithmetic, so as to achieve the purpose of pump speed and consumed power controlling. The operating principle of variable frequency and constant pressure water supply system and the design procedures of software programming are elaborated. Practical application shows that the variable frequency and constant pressure water supply system based on fuzzy control has good effect on energy saving and obvious economic benefits and is worth popularizing and applying.

High-rise Constant Pressure Water Supply Control System Based on Fuzzy PID

2021 ◽  
Author(s):  
Wencheng Wang ◽  
Zhenmin Wu ◽  
Huanli Liu ◽  
Yongbing Lin ◽  
Junhong Zhou ◽  
...  
Keyword(s):  
Control System ◽  
Water Supply ◽  
Constant Pressure ◽  
Fuzzy Pid ◽  
High Rise ◽  
Pressure Water

The Design of Variable Frequency Constant Pressure of Gas Conveying Control System in Mechanical Engineering

2013 ◽  
Vol 644 ◽  
pp. 81-84
Author(s):  
Yan Chen ◽  
Yang Gao ◽  
Qing Qin Li
Keyword(s):  
Control System ◽  
Constant Pressure ◽  
Variable Frequency ◽  
Energy Company ◽  
Air Supply ◽  
Practical Operation ◽  
Execution Unit ◽  
Valve Opening ◽  
One Year ◽  
Valve Control

Force fan is widely used in various industries. To regulate the gas pressure by regulating valve opening degree is not conducive to energy saving, but also affect the service life of the equipment. In this paper designed a constant pressure plenum system, using the converter as a controller and governor execution unit. Practical operation in one energy company shows, the system run stable, achieve the constant pressure air supply requirements, error within permitted. Thinking working 300 days one year, the system can reduce more than 50% energy consumption than the valve control pressure mode.

Sign in / Sign up

Export Citation Format

Share Document