Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Reaction vessel negative pressure rectification fuzzy control method

A technology of fuzzy control and negative pressure distillation, which is applied in the direction of fluid pressure control, electric fluid pressure control, non-electric variable control, etc., can solve the problems of slow operation speed, sacrifice of system stability, serious hysteresis, etc., to achieve The effect of improving speed

Active Publication Date: 2016-09-28
QUFU NORMAL UNIV
View PDF3 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the hysteresis of this control method is very serious, and the operation speed is also very slow.
In order to solve this defect, the integral parameter in PID control is often appropriately reduced, and the differential coefficient in PID control is increased at the same time, but this sacrifices the stability of the system

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
  • Reaction vessel negative pressure rectification fuzzy control method
  • Reaction vessel negative pressure rectification fuzzy control method
  • Reaction vessel negative pressure rectification fuzzy control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0039] Such as figure 1 As shown, the connection mode of the negative pressure rectification of the reactor includes a negative pressure device 1 and a water tank 2, and a reactor 7 for accommodating the reaction material to heat and evaporate the reaction material, wherein the negative pressure device 1 and the water tank 2 Connect through the pipeline 10, and the reaction kettle 7 is connected to the pipeline 10 between the negative pressure device 1 and the water tank 2 through the pipeline 11; the negative pressure device 1 is a water pump that can run under the drive of the motor, and the water pump is driven by the motor The water in the water tank 2 is extracted at a high speed, and the water is sent back to the water tank through the pipeline 10, thereby forming a circulating water pipeline. The high-speed flowing water will take away the air in the r...

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 discloses a reaction vessel negative pressure rectification fuzzy control method which is characterized in that a reaction still, a rectification tower, and a water tank are involved; a negative pressure pumping apparatus, a first control valve and a second control valve are controlled through a controller; a rotation speed of the negative pressure pumping apparatus is real-time and dynamicly regulated in accordance with pressure deviation in the reaction still and pressure deviation variation rate through a fuzzy-PID controller, which improves reaction still negative pressure rectification in terms of speed, precision and stability; and when an actual pressure value in the reaction still is overstruck, the actual pressure value is rapidly stabilized with an expected pressure value error range through pressure compensation regulation.

Description

technical field [0001] The invention relates to the field of chemical production, in particular to a fuzzy control method for negative pressure distillation in a reactor. Background technique [0002] In today's specific chemical reaction occasions in the chemical industry, negative pressure distillation occupies a very important position in the chemical industry, and the accuracy of its control will directly affect the quality of the product. Negative pressure distillation technology is a hot research topic at home and abroad in recent years, and the pressure control of the reactor is one of the important factors that determine the purity of the distillation product. There are many kinds of traditional negative pressure extraction techniques, most of which use negative pressure vacuum pumps for negative pressure extraction. Although this method is cheap and easy to use, it has very low requirements for precision, and it is very difficult in the industrial background of mode...

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
IPC IPC(8): G05D16/20
CPCG05D16/202
Inventor 张立华王化建曹新华卢立晖李坤
Owner QUFU NORMAL UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com