Efficient anti-crystallization urea spray nozzle

A urea nozzle and anti-crystallization technology, which is used in mufflers, exhaust gas treatment, engine components, etc., can solve the problems of long air drainage channels of urea drainage channels and inability of urea solution to transition smoothly.

Inactive Publication Date: 2017-06-20
北京凯德斯环保科技有限公司
View PDF4 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The urea drainage channel and the air drainage channel in this invention have a relatively long distance, and the nozzle trend is perpendicular to the urea drainage channel and the air drainage channel. Although the atomization effect is significantly improved compared with ordinary product

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
  • Efficient anti-crystallization urea spray nozzle
  • Efficient anti-crystallization urea spray nozzle
  • Efficient anti-crystallization urea spray nozzle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0032] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly co...

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 high-efficiency anti-crystallization urea nozzle, comprising a nozzle housing, an air guide pipe and a urea guide pipe connected to the top of the nozzle housing, the nozzle housing is cylindrical, and a spray surface is provided on one side of the lower end of the nozzle housing. The spraying face extends inside the nozzle housing to form a spraying seat; the nozzle housing is provided with a cavity, and the cavity is connected to the air guide tube; the center of the spraying seat is connected to the urea guide tube, and the urea guide tube is arc-shaped transition to the center of the spraying seat, and the urea The guide tube extends to the injection surface to form the outlet of the urea solution; the injection seat forms an air ring cavity around the periphery of the urea guide tube, and the air ring cavity includes an air introduction section, an air buffer section, and an air injection section, and the air introduction section is set in the air ring cavity At the edge, the end of the air introduction section communicates with the air buffer section, the air buffer section communicates with the air injection section, and the air injection section extends to the injection surface to form an air outlet. The invention has smooth ejection, uniform atomization, and better effect of catalytic reduction of tail gas.

Description

technical field [0001] The invention relates to a urea nozzle, in particular to a high-efficiency anti-crystallization urea nozzle, which belongs to the technical field of aftertreatment of diesel engine exhaust. Background technique [0002] The main pollutant in diesel engine exhaust is NOx. In order to make diesel vehicles meet the requirements of national emission regulations, the main technical route in my country is selective catalytic reduction (SCR). In the SCR post-treatment system, urea solution is used as a reducing agent to remove diesel engine exhaust. In order to meet the requirements of the country's corresponding emission regulations. The working principle of the system is: the exhaust gas enters the exhaust pipe, and a urea nozzle is installed on the exhaust pipe, which is sprayed into the urea solution for the vehicle. The urea generates ammonia after hydrolysis and pyrolysis at high temperature, and the ammonia passes through the catalyst. It reacts with n...

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
IPC IPC(8): F01N3/28F01N3/20
CPCF01N3/28F01N3/2066F01N2610/02F01N2610/1453F01N2610/1486
Inventor 郭忠辉赵栋高世亮
Owner 北京凯德斯环保科技有限公司
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

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap