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Anti-crystallization freeze-crack urea nozzle

A urea nozzle and anti-crystallization technology, which is applied in the direction of machines/engines, mechanical equipment, engine components, etc., can solve problems such as low atomization efficiency, small spray range, and crystallization formation, so as to save resources, avoid excessive temperature, and improve The effect of service life

Active Publication Date: 2021-12-17
YANTAI YINGDE PRECISION MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an anti-crystallization freeze-cracking urea nozzle to solve the problems of small spray range, low atomization efficiency, dripping and crystallization in the prior art

Method used

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  • Anti-crystallization freeze-crack urea nozzle
  • Anti-crystallization freeze-crack urea nozzle
  • Anti-crystallization freeze-crack urea nozzle

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Embodiment Construction

[0034] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them.

[0035] The components of the embodiments of the invention generally described and shown in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention.

[0036] Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0037] In the description of the present invention, it should be noted that the...

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Abstract

The invention discloses an anti-crystallization freeze-crack urea nozzle, which relates to the technical field of urea nozzles and comprises a nozzle housing, an air guide pipe, and a urea guide pipe. The nozzle housing is cylindrical, and the bottom of the nozzle housing is fixedly connected with a spray seat. , there are two air guide tubes and they are symmetrically fixed on the top of the nozzle housing. The air guide tube runs through the nozzle housing. , the bottom of the urea draft pipe is fixedly connected with a broken bubble tube, the broken bubble tube is composed of an inlet section, a broken bubble section and a spray section, and the top and bottom of the broken bubble section are respectively connected to the inlet section and the spray section in rotation, the present invention can Enhance the atomization effect and spray range of the urea nozzle, avoid the early atomization of the urea solution and the dripping of the urea solution when it is sprayed, and effectively prevent the crystallization of the urea solution.

Description

technical field [0001] The invention relates to the technical field of urea nozzles, in particular to an anti-crystallization freeze-cracking urea nozzle. 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, the urea nozzle is installed on the exhaust pipe, and the urea solution is sprayed into the vehicle through the urea pump. The urea generates ammonia after hydrolysis and pyrolysis at high temperature, and passes through the catalytic converter. Inside, ammonia and nitrogen oxides undergo a reduction react...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N3/20
CPCF01N3/2066F01N2610/02F01N2610/1453F01N2610/1486F01N2570/14Y02T10/12
Inventor 高世亮高居顺侯政宣立鹏
Owner YANTAI YINGDE PRECISION MASCH CO LTD
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