Novel SCR denitration device efficiency calculation method

A technology for efficiency calculation and denitrification efficiency, applied in the direction of measuring devices, machine/structural component testing, instruments, etc., can solve the problems of not considering the flue gas flow rate, simple calculation method, etc., and achieve accurate and accurate flue gas nitrogen oxide concentration Scientific, high practical value, scientific effect of pollutant concentration calculation

Inactive Publication Date: 2020-03-24
ELECTRIC POWER SCI & RES INST OF STATE GRID TIANJIN ELECTRIC POWER CO +2
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the detection method of the selective catalytic reduction reaction (SCR) denitrification device only considers the nitrogen oxide content and oxygen content in the flue gas, and does not consider the problem of the flue gas flow rate. The calculation method is simple and few other factors are considered. The problem

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
  • Novel SCR denitration device efficiency calculation method
  • Novel SCR denitration device efficiency calculation method
  • Novel SCR denitration device efficiency calculation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The present invention is further described in detail through the following examples, but the technical content described in this example is illustrative rather than limiting, and should not limit the protection scope of the present invention accordingly.

[0026] A new method for calculating the efficiency of an SCR denitrification device. The innovation of the present invention lies in: setting sampling points at the inlet and outlet of the SCR denitrification device, and sampling and measuring the flue gas flow rate, oxygen content and nitrogen oxide content at each sampling point;

[0027] The calculation method includes the following steps:

[0028] (1) Calculate the average concentration of nitrogen oxides at the inlet;

[0029] (2) Calculate the average concentration of nitrogen oxides at the outlet;

[0030] (3) Calculate the denitrification efficiency.

[0031] Again, the calculation process of the inlet nitrogen oxide average concentration described in step (...

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 novel SCR (Selective Catalytic Reduction) denitration device efficiency calculation method, which comprises the following steps of setting sampling points at an inlet and anoutlet of an SCR denitration device, and sampling and measuring flue gas flow rate, oxygen content and nitrogen oxide content at each sampling point. Firstly, the average concentration of inlet nitric oxide is calculated; the average concentration of nitrogen oxide at an outlet is calculated; finally, the denitration efficiency is calculated. According to the method, the flue gas flow rate is added in detection to serve as a factor participating in calculation, the flue gas nitrogen oxide concentration obtained through calculation is more accurate and scientific, and the calculated denitration efficiency better conforms to the actual operation condition of equipment. The method is applied to SCR (selective catalytic reduction) and SNCR (selective non-catalytic reduction) denitration engineering, the distribution condition of pollutants in the flue can be known more accurately, and a more reliable data basis is provided for adjustment of denitration ammonia spraying amount. And meanwhile, more instructive parameter analysis is provided for on-site ammonia injection optimization and adjustment, pollutant concentration calculation is more scientific, and the practical value is very high.

Description

technical field [0001] The invention belongs to the technical field of electric power engineering measurement, in particular to a novel method for calculating the efficiency of an SCR denitrification device. Background technique [0002] As my country's emphasis on environmental protection and related industries has gradually increased, the identification and detection methods of environmental protection equipment have been greatly improved. Among them, there are corresponding standards and specifications for the detection technology of desulfurization and denitrification equipment for boiler flue gas. The detection method is based on the method specified in item 7 of the national standard GB / T16157-1996 "Determination of Particulate Matter in Exhaust from Stationary Pollution Sources and Sampling Methods of Gaseous Pollutants". However, the detection standards at the present stage are too simple. In order to facilitate on-site detection and calculation, fewer on-site factors...

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): G01N31/10G01M99/00
CPCG01N31/10G01M99/008
Inventor 边疆王桂林胡青波周义刚王森赵越艾邓鑫薛泽海周连升甘智勇
Owner ELECTRIC POWER SCI & RES INST OF STATE GRID TIANJIN ELECTRIC POWER CO
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
Try Eureka
PatSnap group products