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Intelligent electro-pneumatic positioner

Objective


Report on process valves:
- PC-based test rig;
- Report on use of test rig;
- Report on selection of prototypes;
- Theoretical model for valve-positioner-actuator loop;
- Report on selection of sensors (r) leakage detection sensors;
- Software for internal/external leakage, friction, backlash;
- Leakage detection equipment;
- Prototype main positioner board /lab sensor board.
Technology of valves, actuators and positioners in the process industry hasn't significantly changed over the last decades. Now, very quickly, the situation is dramatically changing due to technological advances in the field of microprocessors, fluid mechanics and attrition science, pattern recognition and modelling, sensors and digital communication. Therefore, it seems to be possible to use digital positioners not only for valve control but for valve analysis as well. With the proper understanding of valve behaviour, enhancements of positioner technology and application of advanced sensor principles it should be possible for a combined system consisting of valve and positioner to achieve the following objectives:- valve maintenance only to take place when necessary and not on a scheduled basis, thereby reducing maintenance costs- valve maintenance to take place on the spot without removing the valve from the process installation, as opposed to checking it out in the workshop- valve failure to be detected in advance rather than after the fact on the damaged equipment. As a consequence, preventative maintenance can be performed and accidental disruption of the process with consequent emergency shutdown can be avoided.- valve packing leaking to be detected in advance thereby avoiding leaks of chemicals in the atmosphere. The proposed project provides great opportunities for new products being positioners and valves. In addition there is a significant impact on manufacturing technology targeting cost reduction as well as enhanced safety and improved environmental protection. BE97-5050

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

ABB Automation Products GmbH
Address
Industriestrasse
65760 Eschborn
Germany

Participants (9)

Billerrud AB
Sweden
Address

169 27 Solna
Design Paradigm Ltd
United Kingdom
Address
Platt Mill House, Platt Lane
HD7 5AB Huddersfield
EDP - Electricidade de Portugal SA
Portugal
Address
10,Rua Mouzinho Da Silveira
1200 Lisboa
Enichem SpA
Italy
Address
4,Via Fauser
28100 Novara
Hopkinsons Ltd.
United Kingdom
Address

HD2 2UR Huddersfield
Mobil North Sea Ltd.
United Kingdom
Address
Union Row
AB10 1SA Aberdeen
Molweld Valves B.V.
Netherlands
Address
67,Nijverheidsstraat
2802 AJ Gouda
Rheinisch-Westfalische Technische Hochschule Aachen
Germany
Address
53,Steinbacherstrasse
52074 Aachen
Somas Instruments AB
Sweden
Address
26,Norrlandsvagen
661 23 Saffle