Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Supercritical water processing control system and control method thereof

A technology of supercritical water and treatment control, applied in the direction of oxidized water/sewage treatment, comprehensive factory control, comprehensive factory control, etc.

Inactive Publication Date: 2014-04-02
DALIAN ZHONGDING CHEM
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing supercritical water treatment methods, such as the invention patent with publication number CN101580320A, are controlled manually, with low degree of automation, and the safety and reliability of the control system are not good. High, the system performance is unstable, and requires a large number of operators, the downtime rate is relatively high, no matter the reason for the downtime is error / fault or maintenance, the longer the production downtime, the higher the cost of downtime, so it is necessary to use supercritical water Improvement of the processing unit to reduce its downtime by using a fault-tolerant system
However, the control system with fault-tolerant function that can implement automatic control of supercritical water treatment equipment has not been reported yet.

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
  • Supercritical water processing control system and control method thereof
  • Supercritical water processing control system and control method thereof
  • Supercritical water processing control system and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

example

[0165] Example: I / O is at addresses 8 and 9 in the S7-400H CPU; addresses 10 and 11 are not used. Accessing L ID8 will cause the system to load the value DW#16#00000000 into the accumulator.

[0166] 4. Communication function

[0167] For programming device (PG) communication functions such as downloading and deleting blocks, one of the two CPUs must be selected even if the function affects the entire system on the redundant link. In redundant operation, data modified in one of the central processing units will affect other CPUs on the redundant link.

[0168] 5. The function of the synchronization module

[0169] The communication between two redundant S7-400H CPUs uses a synchronization module. Each CPU requires two synchronization modules, connected in pairs via fiber optic cables. The system supports hot-swappable synchronization modules, allowing users to participate in the maintenance of fault-tolerant systems and to control the failure of redundant connections witho...

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 supercritical water processing control system and a control method thereof. The supercritical water processing control system provided by the invention comprises a control unit, an analog signal acquisition unit, a digital signal acquisition unit and a field execution device, wherein the control unit is the control core of the system; the input end of the control unit is accessed to the field signals of the analog signal acquisition unit and the digital signal acquisition unit; the output end of the control unit is connected with the field execution device; the control unit is singly operated and automatically switched through the form configuration of redundancy pairs; and the control unit is in communication connection with an upper machine through Ethernet. The method provided by the invention comprises the starting course and stopping course of the supercritical water processing control system, the overvoltage protection course at the top of a reactor and the over-temperature protection course of the bearing wall of a mixer, the top cover of the reactor and a bearing barrel body. In the invention, the automation control degree is enhanced; the manual labor intensity and the number of personnel are greatly reduced; the operating cost is further lowered; and a digital signal processing technique is applied in software, thus the supercritical water processing control system has the advantages of excellent disturbance resistance and zero stability.

Description

technical field [0001] The invention relates to the technical field of supercritical water treatment equipment, in particular to a supercritical water treatment control system and a control method thereof. Background technique [0002] Supercritical water means that water is in a supercritical state when the temperature and pressure exceed the critical state temperature of 374°C and critical pressure of 22MPa respectively. Since supercritical water is an excellent solvent for both organic matter and oxygen, the critical water oxidation method can be used in the treatment of various toxic and harmful wastewater and waste, and can have a high removal rate for most refractory organic matter. Tests have shown that the destruction rate of organic carbon exceeds 99.97% when organic wastewater with organic carbon content between 27000 and 33000mg / L is treated by supercritical water oxidation, and all organic matter is converted into carbon dioxide and inorganic matter. [0003] E...

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): G05B19/418C02F1/72
CPCY02P90/02
Inventor 王树众葛忠权徐东海王伟公彦猛姜东辉隋军
Owner DALIAN ZHONGDING CHEM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products