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Oil fired steam boiler control system and its implementation

Author: ZhaoYaQun
Tutor: WuXiSheng
School: Jiangnan University
Course: Industry Technology and Engineering
Keywords: Steam injection Boiler control Fuzzy Control Feedforward - feedback control Steam pressure Steam dryness
CLC: TP273
Type: Master's thesis
Year: 2008
Downloads: 183
Quote: 1
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Abstract


Steam-driven heavy oil when the oil is injected into the heavy layer of appropriate high-pressure steam dryness crude oil acquisition. Past production of high pressure steam injection boiler are based on crude oil or natural gas as fuel , in our implementation of the \Change in the way the combustion in the boiler control there were many technical problems. In this paper, Liaohe Oilfield, a coal-fired steam injection station steam injection as the background, on the level of automation in improving the depth study. This paper describes the system steam injection process , based on the boiler control system for steam injection control requirements analysis, proposed injection boiler control system controls the existing difficulties . Because steam dryness and steam boiler operation steam injection pressure is an important parameter and performance indicators , is also constrained boiler safety , energy-saving operation control bottleneck, so this paper, coal-fired steam injection boiler control many uncertainties , according to the collected real-time data on the vapor pressure , wind coal servo control aspects of the fuzzy controller design . Dryness of the steam pressure constant control proposed control strategy . In the steam dryness control strategy implementation process, using heat balance measurements and conductivity measurements steam dryness . In the analysis of the main steam dryness affecting factors based on the use of practical engineering feedforward control of a complex feedback control technology to ensure the steam quality control precision and stability. In addition, the control system was constructed and prepared some hardware monitoring software . This design of injection boiler control system has been in Liaohe Oilfield on a steam injection has been successfully applied , the system can improve a greater degree of steam quality, reduce energy consumption of steam injection boiler operation , and has good control performance.

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Automatic control,automatic control system
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