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Vehicle-mounted urea solution metering, ultrasonic atomizing and supplying device

A technology of supply device and ultrasonic wave, applied in the direction of noise reduction device, exhaust device, electric control of exhaust treatment device, etc., can solve the high dependence on compressed air, the threat of failure of compressed air brake system and pneumatic valve system, and the large amount of air consumption. and other problems, to achieve the effect of reducing application and maintenance costs, reducing failure threats, and high performance

Inactive Publication Date: 2015-11-04
BAOTOU BEIDA GOODOING ENGINE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] That is, the technical problem solved by the present invention is: in the SCR system, the air-assisted urea pump is highly dependent on the compressed air of the vehicle body, and because of its large air consumption during operation, it is easy to cause potential failure threats to the compressed air brake system and the pneumatic door system

Method used

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  • Vehicle-mounted urea solution metering, ultrasonic atomizing and supplying device
  • Vehicle-mounted urea solution metering, ultrasonic atomizing and supplying device
  • Vehicle-mounted urea solution metering, ultrasonic atomizing and supplying device

Examples

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Effect test

Embodiment 1

[0059] A vehicle-mounted urea solution metering ultrasonic atomization supply device, such as figure 1 As shown, it includes a metering control electronic control module 1 , a urea absorption module, an ultrasonic atomization module 4 and a blowing module 8 .

[0060] The urea suction module includes a urea pump module 2 and a urea storage 11. The urea pump module 2 communicates with the urea tank 13 through the urea suction pipeline 7. The urea suction pipeline 7 is provided with a control valve 6. The urea storage 11 is connected with a pressure sensor 10. , the urea pump module 2 is also communicated with the urea tank 13 through the urea return line 12 .

[0061] The ultrasonic atomization module 4 communicates with the urea storage 11 through a section of urea pipeline, and communicates with the atomized urea pipeline 14 .

[0062] The blowing module 8 is connected to the ultrasonic atomization module 4.

[0063] figure 1 Among them, the metering ultrasonic atomization...

Embodiment 2

[0104] A vehicle-mounted urea solution metering ultrasonic atomization supply device, the only difference from Embodiment 1 is:

[0105] The pressure of the urea solution is 2bar, and the ultrasonic vibration frequency is 2.4MHz.

[0106] The engine described in Example 1 was replaced with Chaochai CY4102-CE4B engine for testing. After the exhaust gas was treated in the same way as in Example 1, the content of nitrogen oxides in the exhaust gas was 2.25g / kwh, and the concentration of nitrogen oxides could basically reach the national standard. Five standards.

Embodiment 3

[0108] A vehicle-mounted urea solution metering ultrasonic atomization supply device, which differs from Embodiment 2 only in that:

[0109] The pressure of the urea solution is 2.5bar, and the ultrasonic vibration frequency is 2.4MHz.

[0110] After the tail gas was treated in the same way as in Example 1, the content of nitrogen oxides in the tail gas was 3.47g / kwh, reaching the National IV standard.

[0111] The annual output of diesel vehicles in my country is more than 2 million. Until 2008, the annual output of light trucks in my country has accounted for 55% of the total output of light trucks in the world. After the implementation of the National IV standard, the output value of post-processing devices is expected to exceed 10 billion yuan. With the continuous upgrading of emission regulations, when the national five emission standards are met, the technical route of light trucks must adopt SCR technology to meet the requirements. At that time, the demand for SCR urea so...

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Abstract

The invention relates to the technical field of diesel engine tail gas post-processing, atomizing and supplying devices, in particular to a vehicle-mounted urea solution metering, ultrasonic atomizing and supplying device which comprises a metering control electronic control module (1), a urea suction module, an ultrasonic atomizing module (4) and a blowing module (8). The urea suction module comprises a urea pump module (2) and a urea storage device (11). The urea storage device (11) is communicated with the ultrasonic atomizing module (4) and a pressure sensor (10). The ultrasonic atomizing module (4) is communicated with an atomized urea pipeline (14) and the blowing module (8). The pressure sensor (10) is connected with the input end of the metering control electronic control module (1) through a circuit, and the urea pump module (2), the blowing module (8) and the ultrasonic atomizing module (4) are connected with the input and output ends of the metering control electronic control module (1) through circuits. According to the vehicle-mounted urea solution metering, ultrasonic atomizing and supplying device, the ultrasonic atomizing module is arranged internally, the structure of a system is simple and reasonable, assembling and maintenance are convenient, and a new choice is provided for treatment of diesel engine tail gas.

Description

technical field [0001] The invention relates to the technical field of diesel engine atomization devices, in particular to a vehicle-mounted urea solution metering ultrasonic atomization supply device. Background technique [0002] As the country pays more attention to the control of air pollution, the tail gas pollution emitted by automobiles has attracted more and more attention, especially the NOx pollutants emitted by diesel-powered engines. A series of environmental problems caused by pollutants such as NOx. In order to meet the increasingly stringent emission regulations, many automobile and engine manufacturers at home and abroad have begun to apply SCR technology to their products, which means that SCR technology has entered the practical stage, and the matching urea pump has also entered the practical stage. At present, although several major domestic automotive diesel engine companies have carried out research in the field of urea pumps, they are basically based o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N3/28F01N9/00F01N11/00F01N3/20
CPCY02A50/20Y02T10/12Y02T10/40
Inventor 熊飘洋岳广照朱宏宇姚文生常辉李科肖冰
Owner BAOTOU BEIDA GOODOING ENGINE TECH CO LTD