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

Sensor for measuring concentration of nitrogen oxide and detecting ammonia slip

A technology for nitrogen oxides and ammonia leakage, applied in instruments, measuring devices, scientific instruments, etc., can solve problems such as the reduction of NOx conversion efficiency, and achieve the effect of saving setup costs and manufacturing costs

Inactive Publication Date: 2018-12-21
COMET NETWORK CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the injected urea solution is insufficient, the conversion efficiency of NOx will decrease, and if the injected excessive amount, ammonia will be emitted into the air

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
  • Sensor for measuring concentration of nitrogen oxide and detecting ammonia slip
  • Sensor for measuring concentration of nitrogen oxide and detecting ammonia slip
  • Sensor for measuring concentration of nitrogen oxide and detecting ammonia slip

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0053] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. With regard to the advantages, features and implementation methods of the present invention, it will be more clearly understood with reference to the embodiments described in detail below with the accompanying drawings. However, the present invention is not limited to the embodiments listed below, and the present invention can be realized in a variety of forms that are different from each other. The purpose of listing these embodiments is to fully introduce the present invention, so that people with general knowledge in the technical field to which the present invention belongs Those skilled in the art can fully understand the scope of the present invention. The present invention is defined only by the scope of the claims. Throughout the specification, the same reference signs denote the same constituent elements.

[0054] Unless otherwi...

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 present invention relates to a gas sensor and, more specifically, to a gas sensor capable of measuring the concentration of nitrogen oxide and detecting ammonia slip. The present invention provides a sensor for measuring the concentration of nitrogen oxide and detecting ammonia slip, comprising: an oxygen ion-conductive solid electrolyte; a first electrode coming into contact with the solid electrolyte, and being reactive with nitrogen oxide; a second electrode coming into contact with the solid electrolyte, separated from the first electrode, and being reactive with nitrogen oxide; a third electrode coming into contact with the solid electrolyte, separated from the second electrode, connected in parallel with the first electrode, and being reactive with ammonia; a power supply deviceformed so as to apply power between the second electrode and the first electrode and third electrode, which are connected in parallel with each other; and a measurement device formed so as to measurethe potential difference or the current between the first electrode and the third electrode, which are connected in parallel with each other, and the second electrode. According to the present invention, the sensor for measuring the concentration of nitrogen oxide and detecting ammonia slip can simultaneously measure nitrogen monoxide and nitrogen dioxide. In addition, whether ammonia is discharged can be simultaneously measured. According to the present invention, manufacturing costs of the sensor for measuring the concentration of nitrogen oxide and detecting ammonia slip are reduced since anitrogen oxide sensor and an ammonia sensor share a part of the electrodes, the solid electrolyte, a heating part and the like. In addition, installation costs are also reduced since the nitrogen oxide sensor and the ammonia sensor do not need to be separately installed.

Description

technical field [0001] The invention relates to a gas sensor. Specifically, it relates to a gas sensor capable of not only measuring the concentration of nitrogen oxides but also detecting ammonia leakage. Background technique [0002] Nitrogen oxides are substances produced by combining nitrogen and oxygen contained in air and fuel, including: nitrogen monoxide (NO), nitrogen dioxide (NO 2 ), nitrogen trioxide (N 2 o 3 ) and nitrous oxide (N 2 O), with NO x express. Among them, nitrogen monoxide and nitrogen dioxide account for the majority of nitrogen oxide gases, and they are both sources of air pollution. Therefore, it is necessary to measure its concentration and properly control the emission. [0003] Internal combustion engines of automobiles, ships, power plants, heavy equipment, agricultural machinery, etc. are the main sources of nitrogen oxide emissions. In order to remove nitrogen oxides produced by internal combustion engines, generally figure 1 The sel...

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): G01N27/327G01N33/00G01N25/32
CPCG01N27/4074G01N33/0037G01N33/0054Y02A50/20G01N25/32G01N27/3277G01N33/0031G01N27/4162G01N27/417
Inventor 朴震洙
Owner COMET NETWORK CO LTD
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