Unlock instant, AI-driven research and patent intelligence for your innovation.

Dynamic matrix control system and method for high-purity distillation

A dynamic matrix control and dynamic matrix technology, applied in the field of rectification, can solve problems such as enhanced and advanced control schemes that are difficult to implement effectively

Inactive Publication Date: 2010-04-21
ZHEJIANG UNIV
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in view of the limitations of the instrument control system hardware, the nonlinearity of the high-purity distillation process is significantly enhanced with the increase of purity every 0.1% or even every 0.01% purity, and the unique complex dynamic characteristics such as strong coupling of the system, it is difficult for many advanced control schemes Effective implementation in the process of high-purity distillation has become a bottleneck in the high-purity control of products produced by distillation

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Dynamic matrix control system and method for high-purity distillation
  • Dynamic matrix control system and method for high-purity distillation
  • Dynamic matrix control system and method for high-purity distillation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047] Combine below figure 1 , figure 2 with image 3 The purpose and effects of the present invention will be more apparent by describing the present invention in detail.

[0048] The control system includes: rectification tower (control object), intelligent detection instrument (sensing and transmission), DCS system, upper computer and field bus. The rectification tower, intelligent detection instrument, DCS system and host computer are connected in sequence through the field bus to realize the upload and download of information flow. The host computer includes an inference controller, a dynamic matrix controller and a man-machine interface.

[0049]The difference between the system connection method and the traditional industrial process is that the system makes full use of the development of DCS and computer technology, the detection instruments at the top and bottom of the tower are connected to the DCS system, and the detected signals are uploaded to the real-time d...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a dynamic matrix control system of high-purity distillation, which comprises distillation tower, intelligent checker, DCS system, superior host, and on-site bus, while they are connected. The control system uses tower product group as the object variable, and the reflux ratio and reboil ratio as control variable; the superior receives history temperature and pressure datafrom the DCS real-time database, via the predict control and dynamic matrix controller, to obtain the output values of present controller as reflux ratio and reboil ratio, then feedback said two valuesto DCS system, to function the distillation object. The invention can confirm the high-purity stable operation, with better dynamical control.

Description

technical field [0001] The invention relates to the technical field of rectification, in particular to a dynamic matrix control system and method for high-purity rectification. Background technique [0002] The rectification process is one of the most important unit operations to achieve material separation and purification, and it is also one of the most widely used unit operations in industrial processes. With the rapid development of science and technology, people have put forward higher and higher requirements for the purity of chemical products, so high-purity distillation technology has attracted more and more attention, but this field in our country has just started, compared with the world's advanced level There is still a big gap, which restricts the development of my country's fine chemical technology to a certain extent. [0003] Statistics show that the total pesticide sales of domestic pesticide companies is only equivalent to the annual sales of a medium-sized ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B01D3/42
Inventor 刘兴高王成裕
Owner ZHEJIANG UNIV