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Design and implementation method of PCS7-based continuous process control strategy with recovery process

A technology of process control and realization method, applied in non-electric variable control, control/regulation system, control of multiple variables at the same time, etc., can solve the problems of no recycling, low system output, high energy consumption, etc., to improve energy Utilization rate, increased economic benefits, high stability

Inactive Publication Date: 2020-07-10
BENGBU COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the traditional continuous process strategy, raw material A enters the system for reaction, and the excess part is rectified and discharged through the flash tank without recycling, resulting in material waste, high energy consumption, and low system output
The flow chart window of the SMPTLab monitoring environment of the SMPT-1000 host computer software can only display the process parameters involved in the experiment, the cumulative amount of the recovery process cannot be displayed, and it lacks functions such as parameter early warning, controller monitoring, and SFC monitoring

Method used

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  • Design and implementation method of PCS7-based continuous process control strategy with recovery process
  • Design and implementation method of PCS7-based continuous process control strategy with recovery process
  • Design and implementation method of PCS7-based continuous process control strategy with recovery process

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Embodiment 1

[0046] Such as figure 1 As shown, the controlled object is a common continuous process reaction system in the process industry, which can be divided into three parts: feeding preheating, exothermic reaction and separation and purification. Materials A and B are fully mixed and then reacted under the action of catalyst C. The main product D is generated, and the impurities are composed of by-product D and unproduced A, B, and C. Its reaction process is as follows figure 1 As shown, feed pump P101 for raw material A and feed pump P102 for raw material B add raw materials A and B to the mixing tank V101, mix well, heat through the preheater E101, enter the reactor, and act according to the following equation:

[0047] Main reaction: 2A+B—>D

[0048] Side reaction: A+B—>E

[0049] There is a catalyst C pipeline at the top of the reactor, and the delivery pump P103 feeds the catalyst into the reactor through the pipeline, and the exothermic reaction generates main product D and ...

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Abstract

The invention relates to the technical field of process control, in particular to a design and implementation method of a PSC7-based continuous process control strategy with a recovery process. Aimingat the defects that a traditional continuous process system wastes materials and is low in yield, multiple angles of safety, production optimization, energy conservation and the like are comprehensively considered, system characteristics are analyzed by using an SDG graph, an improved cascade-ratio control strategy with a recovery process and control ideas of eight parts of the whole system are formulated, and a complete set of control schemes of hardware configuration, CFC, parallel SFC and the like are completely designed based on PCS7. An advanced multifunctional process control experimental device SMPT-1000 is adopted for simulation of the designed strategy, the operation result shows that the design and implementation method can achieve full-automatic stable operation, the material recycling rate and the product yield are remarkably improved, and safety, practicability and robustness are good. The configuration based on WinCC design can monitor important indexes such as an operating state, concentration, final yield and recovery process flow of the system in real time, and the important indexes can be visually displayed.

Description

technical field [0001] The invention relates to the technical field of process control, in particular to a design and implementation method of a continuous process control strategy with recovery process based on PCS7. Background technique [0002] Continuous process control is a key technology in industrial production. It is mostly used in large-scale production of chemicals, fuels, and polymers. Coupling and strong nonlinear characteristics, the operating conditions are changeable and difficult to control, which directly affects the power source in production and life, determines the quality, type and production capacity of industrial production, and actively promotes the industrial development of our country. Uses a lot of energy. In today's society, energy is scarce and environmental pollution is serious. Under the dual constraints of resources and the environment, energy saving and consumption reduction, improvement of energy utilization rate, and increase of output are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D27/02
CPCG05D27/02
Inventor 茹雪艳陶启宏
Owner BENGBU COLLEGE
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