Valve Position Control

2010 ◽  
pp. 179-197
Keyword(s):  
Position Control ◽  
Valve Position

The Study of Hydraulic Valve Position Control Based on PLC Controller

2014 ◽  
Vol 651-653 ◽  
pp. 928-931
Author(s):  
Chun You Zhang ◽  
Cong Rui Wang
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Closed Loop ◽  
Position Control ◽  
Angular Displacement ◽  
Hydraulic Drive ◽  
Displacement Sensor ◽  
Prototype Model ◽  
Valve Position ◽  
Hydraulic Valve

With the growing shortage of water today, in order to control the flow of pipe conveyance, it is essential for further study of automatic control valves, especially the automatic control technology of control valve. In this paper, by using programmable control and signal transmission technologies etc. a prototype model of hydraulic valve position control is constructed. Prototype model is designed as the closed-loop of position control system, by using high-precision angular displacement sensor detecting the position of the valve plate, converting the output signal of sensor into an industrial process signal 4-20mA with the low-drift transmitter chip XTR101, and with modular PLC as system control center, using three-phase inverter controlling the steering and speed of motor and cooperating with closed pump control system for hydraulic drive, it achieves the closed-loop control hydraulic valve position. This paper provides some technical support for the better use of water resources.

scholarly journals Flow based valve position control using NI my DAQ

2018 ◽  
Vol 7 (2.7) ◽  
pp. 955
Author(s):  
Kalyan Dusarlapudi ◽  
K Uday Kiran ◽  
M V.Narayana ◽  
M Venkata Suman
Keyword(s):  
Pharmaceutical Industry ◽  
Flow Rate ◽  
Position Control ◽  
Servo Mechanism ◽  
Lab View ◽  
Valve Position

This paper emphasizes the required valve position by servo mechanism, which decides the flow rate through pipe. The servo position is decided through Ni Lab View virtual indicator& the same position is tracked by potentiometer with NI My DAQ. The deviation of the valve position is finding by comparing both the positions. This study will helps to maintain the desired flow value where flow rate plays an important role such as Pharmaceutical industry, bottle filling industry Etc.  

scholarly journals Position Control Mathematical Modelling and Operational Evaluation of Tele-Operated Electro-Hydraulic Actuator (T-EHA)

2015 ◽  
Vol 773-774 ◽  
pp. 163-167
Author(s):  
Ahmad Anas Yusof ◽  
Mohd Noor Asril Saadun ◽  
Mohd Khairi Mohamed Nor ◽  
Mohd Qadafie Ibrahim ◽  
Muhammad Zaidan Abdul Manaf
Keyword(s):  
Mathematical Modelling ◽  
Hydraulic System ◽  
Position Control ◽  
Hydraulic Actuator ◽  
Valve Position ◽  
Receiver Unit ◽  
Remote Controller ◽  
Heavy Construction ◽  
Hydraulic Valve ◽  
Post Disaster

This study deals with a master-slave system for a tele-operated electro-hydraulic actuator (T-EHA) that focuses on a hydraulic system to remotely control a mini excavator. Tele-operation using such system is useful for tele-operation support of heavy construction and road restoration, typically in post-disaster areas. This paper presents the current development of position control electro-hydraulic actuator for such remote tele-operation application. A 2.4 GHz radio-controlled transmitter and receiver unit, which is also known as the master, has been utilized as the remote controller for an electro-hydraulic actuator. The electro-hydraulic actuator, which serves as the slave has been fabricated by using a tie-rod cylinder, and coupled with a 24 VDC electro-hydraulic valve. Position control mathematical modelling and operational evaluation have been studied with regard to the tele-operated electro-hydraulic actuator.

Analysis of valve-position control for dual-input processes

1986 ◽  
Vol 25 (3) ◽  
pp. 344-350 ◽  
Author(s):  
Cheng Ching Yu ◽  
William L. Luyben
Keyword(s):  
Position Control ◽  
Valve Position

Flow Controller Cuts project Costs

1998 ◽  
Vol 120 (08) ◽  
pp. 59-60
Author(s):  
Behnam Amin ◽  
Timothy W. Lancey
Keyword(s):  
Position Control ◽  
Control Valve ◽  
Level Control ◽  
Analog Device ◽  
Analog To Digital ◽  
Aircraft Fuel ◽  
Project Costs ◽  
Embedded Microprocessor ◽  
Valve Position ◽  
Flow Controller

This article reviews flow controller that can drastically reduce the project costs. A flow controller has now been developed with an embedded microprocessor that is inexpensive to purchase, easy to program and reprogram for different applications, and simple to wire with the necessary inverters/drivers and analog-to-digital converter. With this system, project costs can be reduced by approximately 75 percent compared with systems using other control valves. Tests have shown that the response time to initiate flow correction is approximately .10 second, and that the valve is actuated to within the required control band in 2.17 seconds. A typical analog device used for valve position control includes float-type operators for liquid service, as in aircraft fuel-tank level control systems. The work shows that a miniature embedded microprocessor can be used effectively and economically for an intelligent control valve. Smart actuation through the microprocessor is not only efficient—it also provides the convenience of advanced modular electronics.

Throttle Valve Position Control System

1965 ◽  
Vol IGA-1 (3) ◽  
pp. 199-205 ◽  
Author(s):  
Richard A. Johnson ◽  
Francis T. Thompson
Keyword(s):  
Control System ◽  
Position Control ◽  
Throttle Valve ◽  
Valve Position ◽  
Position Control System

Development of a System for Remote Control and Monitoring of Wellheads

2021 ◽  
Author(s):  
Elijah Kiplimo ◽  
Daniel Oyoo ◽  
Antonio Tapia ◽  
Marseline Jepng’etich
Keyword(s):  
Remote Control ◽  
Data Analytics ◽  
Position Control ◽  
Fluid Pressure ◽  
Data Gathering ◽  
Machine Learning Algorithms ◽  
Sensor Technology ◽  
Online Platform ◽  
Well Integrity ◽  
Valve Position

Abstract Wellheads have a major role in ensuring well integrity, providing access to the wellbore and flow control. It is vital to constantly monitor the wellhead fluid pressure and temperature effectively in order to maintain the full control of wellbore fluids. Over the years, wellheads have remained purely mechanical and have heavily relied on physical on-site monitoring. There is need to develop a reliable and accessible monitoring solutions for the wellheads in order to increase the effectiveness of the well integrity management systems and to get the full benefits of the wellhead data by incorporating the emerging data analytics technologies. This project details the development of a system that gathers wellhead temperature, pressure and the accurate valve position at any given time. The data gathering systems used in this project entail smart sensor technology capable of withstanding the wellbore pressures and temperatures. The system transmits the data securely, using blockchain, to an online platform where advanced data analytics using MATLAB and machine learning algorithms are used for visual data representation. The online platform additionally provides a means of real-time valve position control and takes into account the exact revolutions required for the opening and closure of the valve hence keeping a record for maintenance purposes. The innovative use and analysis of the data gathered form the wellhead provides insights for the operators and service companies and gives a way for setting ang thresholds in order to get alerts based in their custom specifications. This paper documents the development of a system that gathers wellhead data and provides a means of remote control of the wellhead valves. It covers the design phase, selection of appropriate sensor placement locations on the wellhead, the design of valve actuators, offline data gathering systems and the online data analysis and valve control platform. The project also pays a key attention towards the secure data transmission techniques and highlights the benefits of incorporating such a system in the oil and gas upstream sector.

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