The Design of Constant Pressure Water Supply Control System Based on S7-200 PLC

2013 ◽  
Vol 753-755 ◽  
pp. 1665-1669
Author(s):  
Man Rong Xing ◽  
Jie Zhang ◽  
Xiao Dong Zhang
Keyword(s):  
Water Supply ◽  
Constant Pressure ◽  
Frequency Converter ◽  
Control Variable ◽  
Automatic Regulation ◽  
Logic Control ◽  
Pressure Water ◽  
Core Components ◽  
Power Frequency ◽  
The Given

IN tall buiding’s constant pressure water supply system with PLC and frequency converter logic control, PLC is used for logic control and frequency converter for pressure regulation . PLC and frequency converter which are the core components of the system track changes on the deviation of the pressure in a pipe with the given pressure,through the PLC internal PID operational, it can control variable frequency and power frequency switching and automatic control the number of inputting pumps and speed of the motor to realize closed loop automatic regulation voltage variable water supply, It can achieve the purpose of controlling the flow of water while maintaining constant pressure.

Application of LOGO! and Frequency Converter in the Water Supply Equipment of Residential Communities

2011 ◽  
Vol 127 ◽  
pp. 588-591
Author(s):  
Yao Cheng Wang
Keyword(s):  
Water Supply ◽  
Constant Pressure ◽  
Residential Buildings ◽  
Low Cost ◽  
Frequency Converter ◽  
High Rise ◽  
Logic Control ◽  
Pressure Water ◽  
Supply Equipment ◽  
Hardware Circuit

In order to solve the problem of constant-pressure water supply in high rise residential buildings, to fulfill the low power, low-cost demand, here I propose LOGO! And a water supply equipment controlled by frequency converter. By collecting field measurement signals through the pressure sensor together with LOGO! Logic control signals, this equipment can change the frequency and voltage of the inverter, control the pump's rotation rate and finally, meet the constant-pressure water supply demand. This paper also describes the hardware circuit and the software design of LOGO! in detail. Practice has proved that: The frequency converter and the LOGO! control are highly reliable, easily operated and conveniently maintained. Therefore the object of energy saving can be achieved successfully.

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.

Frequency Conversion Constant Pressure Water Supply System Controlled by a Fuzzy Controller

2013 ◽  
Vol 694-697 ◽  
pp. 532-537
Author(s):  
Song Liu ◽  
Han Yi Li
Keyword(s):  
Water Supply ◽  
Frequency Conversion ◽  
Constant Pressure ◽  
Fuzzy Controller ◽  
Frequency Converter ◽  
Supply System ◽  
Water Supply System ◽  
Water Yield ◽  
Pressure Water ◽  
Electricity Saving

This thesis introduces a frequency converter constant pressure water supply system which controlled by the fuzzy controller DB-3000A and the frequency converter INVTG9011T4.The double pump can be controlled by a frequency converter efficiently. The frequency conversion constant pressure water supply system is designed by a operation mechanism which has dual-pump with four status. The pressure of water supply has been decided by the water yield of consumers. The pressure value of pressure gauges decides the degree of working load. This system worked well in practical application. This system has advantages like security in operation, flexibility, electricity saving, extended the life of the pump, and so on.

Energy Saving Application in Constant Pressure Water Supply System Based on SANCO - vm05 Frequency Converter

2013 ◽  
Vol 860-863 ◽  
pp. 700-703
Author(s):  
Jiao Yue Liu ◽  
Ju Qing Yang ◽  
Chuan Ming Wang
Keyword(s):  
Water Supply ◽  
Constant Pressure ◽  
Frequency Control ◽  
Frequency Converter ◽  
Supply System ◽  
Secondary Pollution ◽  
Frequency Control System ◽  
Pressure Water ◽  
Save Energy

This paper analyzes the design of constant pressure water supply frequency control system based on SANCO - vm05 inverter with the built-in PID regulator and SWS water supply control. It’s replacing traditional way of water supply to eliminate the secondary pollution of water quality, improve the quality of the water supply, save energy by 20% - 40%, thus it’s proved as small investment and large gains.

Design of Ethernet-Based Constant Pressure Water Supply and Remote Monitoring System

2010 ◽  
Vol 426-427 ◽  
pp. 617-620
Author(s):  
G.X. Liu ◽  
H.T. Ma ◽  
D.H. Yuan
Keyword(s):  
Water Supply ◽  
Monitoring System ◽  
Remote Monitoring ◽  
Constant Pressure ◽  
Frequency Converter ◽  
Remote Monitoring System ◽  
Control Interface ◽  
Field Control ◽  
Pressure Water ◽  
Industry Ethernet

To realize the constant pressure water supply, a frequency converter is used to control the periodic duty of three pumps in this paper. Then, the communication between host computer and field control equipment is studied and realized by using industry Ethernet Graphical control interface, and remote monitoring is realized.

Constant Pressure Water Supply System Design Based on PLC & Frequency Converter

2011 ◽  
Vol 347-353 ◽  
pp. 394-397
Author(s):  
Yong Li Ma ◽  
Zhi Ying Zhao
Keyword(s):  
Water Supply ◽  
Constant Pressure ◽  
Frequency Converter ◽  
Supply System ◽  
Water Supply System ◽  
Safety Measures ◽  
Pressure Water ◽  
Working Principle ◽  
Composition Structure ◽  
Save Energy

In this paper, the current problems existing in the water supply system are analyzed, puts forward the constant pressure water supply system based on PLC& frequency converter, Introduces the composition structure, system function, working principle and safety measures. The fact proves that the way of water supply is stable, reliable and save energy.

The Design of Constant Pressure Water Supply Control System for City

2014 ◽  
Vol 1079-1080 ◽  
pp. 1018-1021
Author(s):  
Shi Chen Li
Keyword(s):  
Water Supply ◽  
Constant Pressure ◽  
Frequency Control ◽  
Frequency Converter ◽  
Supply System ◽  
Water Supply System ◽  
System Structure ◽  
Software Selection ◽  
Pressure Water ◽  
Selection Of

This paper mainly introduces the application of frequency control in constant pressure water supply, describes the principle of constant pressure water supply technology, and its system structure based. This paper presents the basic principle of the inverter and the composition of hardware and software, selection of a frequency converter in constant pressure water supply system and use, comprehensive introduction to the structure of the constant pressure water supply system.

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