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

Control system and control method for PNCR denitrfying agent spray gun

A control system and control method technology, applied in chemical instruments and methods, separation methods, gas treatment, etc., can solve the problem that flue gas does not reach the emission of flue gas nitrogen oxides, ammonia escape emission indicators, and nitrogen oxide indicators fluctuate greatly. , flue gas concentration changes and other problems, to achieve the effect of saving operating costs, reducing material consumption and accumulation, and reducing the amount of ammonia escape

Inactive Publication Date: 2018-11-13
EVERBRIGHT ENVIRONMENTAL TECH RES INST NANJING CO LTD +1
View PDF6 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the rapid change of flue gas temperature and many flue gas concentrations in the process of waste incineration, the nitrogen oxide index in the flue gas after PNCR denitrification fluctuates greatly, and the ammonia escape is high, so that the treated flue gas cannot reach the emission of flue gas nitrogen oxidation. pollutants, ammonia fugitive emission indicators

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
  • Control system and control method for PNCR denitrfying agent spray gun
  • Control system and control method for PNCR denitrfying agent spray gun

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] In order to solve the problems in the prior art, the invention provides a kind of PNCR denitration agent spray gun control system, comprising:

[0046] PNCR denitration agent spray gun;

[0047] The flue gas detection device is used to detect the NOx content in the flue gas after the denitrification treatment, and obtain the measured value of NOx;

[0048] A PID cascade controller, the PID cascade controller is used to control the denitrification dose input to the PNCR denitration agent spray gun according to the NOx measurement value, so as to adjust the NOx content in the flue gas.

[0049] Refer below figure 1 The PNCR denitration agent spray gun control system of the present invention is schematically illustrated, wherein figure 1It is a schematic diagram of the control principle of a PNCR denitration agent spray gun control system according to an embodiment of the present invention.

[0050] see figure 1 , according to a kind of PNCR denitration agent spray gun...

Embodiment 2

[0063] The present invention also provides a method for controlling the PNCR denitration agent spray gun, which is controlled by the PNCR denitrification agent spray gun control system as described in the first embodiment.

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 provides a control system and a control method for a PNCR denitrfying agent spray gun. The control system for the PNCR denitrfying agent spray gun comprises the PNCR denitrfying agent spray gun, a flue gas detection device and a PID cascade controller, wherein the flue gas detection device is used for detecting the content of NOx in flue gas subjected to denitrification treatment andobtaining a NOx measured value; the PID cascade controller is used for controlling the denitration dose inputted into the PNCR denitrfying agent spray gun according to the NOx measured value and further adjusting the content of the NOx in the flue gas. According to the control system and the control method for the PNCR denitrfying agent spray gun, disclosed by the invention, by adopting the PID cascade controller to control the denitration dosage in the PNCR denitrfying agent spray gun, accurate adjustment of the content of the NOx in the flue gas is realized; unnecessary material consumptionand accumulation of the denitrfying agent are reduced and the ammonia escape amount and NOx emission load in the flue gas are reduced; on the one hand, environmental pollution is reduced; on the other hand, the operation cost of waste incineration power generation is reduced; meanwhile, the service life of the equipment is effectively prolonged.

Description

technical field [0001] The invention relates to the field of waste incineration treatment, in particular to a PNCR denitrification agent spray gun control system and a PNCR denitrification agent spray gun control method. Background technique [0002] With the continuous expansion of the number and scale of cities, the requirements for urban waste disposal are getting higher and higher. Garbage incineration is currently the most widely used garbage treatment method in foreign countries. The biggest advantage of this method is the high degree of garbage recycling and reduction. Garbage incineration plants are built around the city, which is convenient for transporting garbage, and can provide electricity or heat to the city, generating good economic benefits. [0003] After incineration of waste, it is necessary to denitrify the NOx in the flue gas produced by incineration. Traditional denitrification mainly includes SNCR, rotary spray semi-dry method, dry method, etc. With ...

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 Applications(China)
IPC IPC(8): B01D53/56
CPCB01D53/56B01D2258/0283
Inventor 高秀荣蔡曙光邵哲如王健生朱亮张二威曹伟
Owner EVERBRIGHT ENVIRONMENTAL TECH RES INST NANJING CO LTD