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

uf 6 Vaporization automatic control system and control method

An automatic control system and control system technology, applied in the direction of total factory control, total factory control, electrical program control, etc., can solve the problems of low automation, low safety and reliability, and low control precision, and achieve good economic benefits and social benefits. Benefits, reducing the number of craftsmen, and reducing environmental pollution

Active Publication Date: 2016-12-21
CNNC JIANZHONG NUCLEAR FUEL
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the production process, technicians need to manually control the internal pressure of the material container in the vaporization tank, the internal pressure of the vaporization tank and the pressure of the door seal of the vaporization tank, which not only has a low degree of automation and low control accuracy, but also low safety and reliability.
In addition, the temperature control of the air duct adopts the outdated on-site instrument position control method, the control error is large, and the service life of the heater is short

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
  • uf  <sub>6</sub> Vaporization automatic control system and control method
  • uf  <sub>6</sub> Vaporization automatic control system and control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] Such as figure 1 , figure 2 As shown, the UF of the present invention 6 The vaporization automatic control system includes a DCS control system and a PLC control system; the DCS control system includes a pressure transmitter inside the storage container, a temperature transmitter on the outer wall of the storage container, a temperature transmitter for the air duct, a current transmitter A, an electrorheological Transmitter B, A / D conversion module A, A / D conversion module B, A / D conversion module C, A / D conversion module D, A / D conversion module E, PID pressure regulator, program setter, sequence controller, conversion control Controller, PID temperature regulator A, PID temperature regulator B, protection chain controller A, protection chain controller B, digital-to-analog conversion module A, digital-to-analog conversion module B...

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, which belongs to the technical field of automatic controlling, particularly relates to a UF6 vaporization automatic control system and a control method thereof. A DCS control system of the system is composed of a material holding container internal pressure transmitter, a material holding container outer-wall temperature transmitter, a gas-guide tube temperature transmitter, a current transmitter, an analog-to-digital conversion module, a PID pressure regulator, a program setting device, a sequence controller, a conversion controller, a PID temperature regulator A, a PID temperature regulator B, a protection linkage controller, a digital-to-analog conversion module, a switching value output module, a heating controller, and a heater. And a PLC control system of the system includes a vaporization tank internal pressure transmitter, a doorseal pressure transmitter, a PLC analog input module, a PLC controller, a graphic operation terminal, and an output controller. The DCS control system is used for realizing continuous automatic control and protection of the internal pressure and the wall temperature of the material holding container as well as continuous and automatic control and protection of the gas-guide tube temperature and the heater current; and the PLC control system is used for realizing automatic control and protection of the internal pressure and the doorseal pressure of the vaporization tank.

Description

technical field [0001] The invention belongs to the technical field of automatic control, in particular to a UF 6 Vaporization automatic control system and control method. Background technique [0002] UF 6 The vaporization of uranium dioxide is the first process of wet or dry preparation of sinterable uranium dioxide powder, and its process flow is as follows: filled with UF 6 The material container is vaporized in the vaporization tank, and the heater of the vaporization tank is located at its tail. The heat generated by the electrothermal effect spreads evenly around the material container through the blowing action of the axial flow fan, so that it is evenly heated from the outside to the inside. As the heating proceeds, the temperature of the container gradually increases, and the UF inside it 6 The material gradually heats up and expands, and the internal pressure of the container gradually changes from negative pressure to positive pressure. When the temperature r...

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): G05B19/418
CPCY02P90/02
Inventor 王建卫王来革郭翔
Owner CNNC JIANZHONG NUCLEAR FUEL
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