Intermittent reactor control system based on control variable parameterization method

A technology for controlling variables and reactors, applied in chemical instruments and methods, comprehensive factory control, comprehensive factory control, etc.

Inactive Publication Date: 2013-09-18
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, optimal control theory and corresponding methods are rarely used in the control methods of domestic batch reactors, and the parameters in the controller are often set based on existing experience.

Method used

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  • Intermittent reactor control system based on control variable parameterization method
  • Intermittent reactor control system based on control variable parameterization method
  • Intermittent reactor control system based on control variable parameterization method

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Embodiment 1

[0044] The parallel irreversible reactions occurring in the batch reactor include: A→B and A→C, and the reaction rate constant is a function of temperature T(t), respectively

[0045] k 1 ( t ) = k 10 e - E 1 / R · T ( t )

[0046] k 2 ( t ) = k 20 e - E 2 / R · T ( t ) ...

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Abstract

The invention discloses an intermittent reactor control system based on a control variable parameterization method. The system comprises an intermittent reactor, and a temperature sensor, an analog to digital converter, a site bus network, a DCS (distributed control system), a main control chamber and product concentration status display which are arranged at the end of the intermittent reactor, and a digital to analog converter and a temperature control valve which are arranged at the end of the intermittent reactor. After duration of production process, initial concentration status of materials in the reactor and a target product required to increase concentration are determined by an engineer in a control chamber, the DCS acquires a temperature control strategy to enable the target product concentration to be maximum, converts the temperature control strategy into an open command for a temperature control valve, transmits the open command to the digital to analog converter at the end of the intermittent reactor through the site bus network, and enables the temperature control valve to act according to received control commands. The temperature sensor collects the temperature of the reactor in real-time and returns to the DCS to enable the engineer in the control chamber to master the production process timely. By the aid of the intermittent reactor control system, concentration of the target product can be maximized, and potential synergies are realized.

Description

technical field [0001] The invention relates to the field of reactor control, and mainly relates to a batch reactor control system based on a control variable parameterization method. It can automatically control the temperature of the reactor to increase the concentration of the target product. Background technique [0002] Batch reactor, also known as batch reactor, is widely used in petrochemical, fine chemical, pesticide and other industrial production. [0003] For a batch reactor with a fixed volume, when the material parameters such as raw material ratio and concentration are determined, under the condition of sufficient stirring, the key factor affecting the product output is the reaction temperature. Since the production process requirements of different products are different, it is of great significance to automatically control the optimal temperature of the batch reactor according to the production process requirements. [0004] At present, optimal control theo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D23/19G05B19/418B01J19/00
CPCY02P90/02
Inventor 刘兴高胡云卿周赤平张海波孙优贤
Owner ZHEJIANG UNIV
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