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Distillation tower control method, storage medium and electronic equipment

A control method and a rectification tower technology, applied in the chemical industry, can solve the problems of rectification tower parameter control lag, rectification tower operation stability, rectification tower interference, etc., to improve work efficiency and safety, smooth operation, The effect of improving accuracy

Active Publication Date: 2022-04-22
WANHUA CHEM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the control of the parameters of the existing rectification tower is mainly through the control of parameters such as temperature, liquid level, flow rate, heat and cooling capacity during the operation of the rectification tower, but the control of the existing rectification tower parameters is usually only for the rectification tower. The local parameters of the distillation tower are controlled. For the rectification tower that needs to adjust the load frequently, the feed amount (that is, the load of the rectification tower) is constantly changing. The control of the local parameters of the rectification tower cannot overcome the interference as a whole, which will lead to Problems such as delay in control of distillation column parameters and poor overall operation stability of the distillation column

Method used

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  • Distillation tower control method, storage medium and electronic equipment
  • Distillation tower control method, storage medium and electronic equipment
  • Distillation tower control method, storage medium and electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] Such as figure 1 as shown, figure 1 It is a work flow diagram of a rectification column control method provided in Embodiment 1 of the present invention, including:

[0080] Step S101: Acquiring the material information of the rectification tower, the material information includes feed flow, feed heat and column steam flow;

[0081] Step S102: Generate material adjustment parameters based on material information and preset adjustment parameters. Material adjustment parameters include tower top production flow adjustment parameters, tower bottom production flow adjustment parameters, tower bottom steam flow adjustment parameters, and tower top reflux flow matching parameters ;

[0082] Step S103: adjusting the rectification column according to the material adjustment parameters.

[0083] Specifically, when the load of the rectification tower changes, the controller executes step S101 to collect the feed flow rate, feed heat and steam flow of the tower bottom of the re...

Embodiment 2

[0087] Such as figure 2 as shown, figure 2 It is a work flow chart of a rectification tower control method provided in Embodiment 2 of the present invention, including:

[0088] Step S201: Obtain the feed flow rate of the rectification tower;

[0089] Step S202: According to the feed flow rate and the preset separation constant at the top of the tower, the feedforward value of the output flow adjustment at the top of the tower is obtained;

[0090] Step S203: Obtain the output value of the production flow rate of the top reflux tank of the rectification tower;

[0091] Step S204: adding the feedforward value of the production flow adjustment at the top of the tower and the production flow output value of the reflux tank at the top of the tower to obtain the adjustment parameter of the production flow at the top of the tower;

[0092] Step S205: adjusting the top production flow of the rectification column according to the adjustment parameter of the top production flow. ...

Embodiment 3

[0109] Such as image 3 as shown, image 3 It is a work flow chart of a rectification column control method provided in Embodiment 3 of the present invention, including:

[0110] Step S301: Obtain the feed flow rate of the rectification tower;

[0111] Step S302: According to the feed flow rate and the preset separation constant at the bottom of the tower, the feedforward value of the output flow adjustment at the bottom of the tower is obtained;

[0112] Step S303: Obtain the output value of the output flow rate of the distillation tower bottom;

[0113] Step S304: adding the feedforward value of the output flow adjustment at the bottom of the tower and the output value of the output flow at the bottom of the tower to obtain the adjustment parameter of the output flow at the bottom of the tower;

[0114] Step S305: adjusting the bottom production flow rate of the rectification tower according to the adjustment parameter of the bottom production flow rate.

[0115] Specifica...

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Abstract

The invention discloses a rectification tower control method, a storage medium and electronic equipment. The rectification tower control method includes: obtaining material information of the rectification tower, and the material information includes feed flow rate, feed heat and column steam Flow rate; generate material adjustment parameters according to the material information and preset adjustment parameters, and the material adjustment parameters include tower top production flow adjustment parameters, tower bottom production flow adjustment parameters, tower bottom steam flow adjustment parameters and tower top reflux flow matching parameters; adjusting the rectification column according to the material adjustment parameters. In the present invention, by obtaining the material information of the rectification tower, the material adjustment parameters are generated according to the material information and the preset adjustment parameters, and the rectification tower is adjusted according to the material adjustment parameters, so as to prevent the adjustment lag of the rectification tower control parameters and improve the accuracy of the control parameters No need to manually adjust the workload to find the balance point, ensure the smooth operation of the distillation column, and improve work efficiency and safety.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a method for controlling a rectification tower, a storage medium and electronic equipment. Background technique [0002] The petrochemical industry is the lifeblood of the country's basic industries and plays a very important role. The petrochemical production process mainly includes three aspects: raw material refining, chemical reaction, and product separation and refining. Among them, the separation part is the part that consumes the most energy and is also the main focus of the entire petrochemical production optimization. At present, the method of industrial separation and purification mainly adopts the method of rectification. The smooth operation of the rectification tower is not only related to the quality of the product but also affects the energy consumption of the entire production process. Therefore, the precise and stable control of the parameters of the d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D3/14B01D3/32
CPCB01D3/14B01D3/32
Inventor 卢大鹏田宇王远辉郑梁王浩董玉玺刘刚朱敏燕张宏科
Owner WANHUA CHEM GRP CO LTD
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