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Connection device and integrated SCR (selective catalytic reduction) catalytic muffler

A technology of catalytic muffler and connecting device, which is applied in the direction of muffler, exhaust device, machine/engine, etc.

Active Publication Date: 2014-04-02
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to provide a connecting device for connecting the urea nozzle and the SCR catalytic muffler, which can make the connection between the urea nozzle and the SCR catalytic muffler stable and reliable and can solve the crystallization problem of the urea aqueous solution at the urea nozzle seat

Method used

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  • Connection device and integrated SCR (selective catalytic reduction) catalytic muffler
  • Connection device and integrated SCR (selective catalytic reduction) catalytic muffler
  • Connection device and integrated SCR (selective catalytic reduction) catalytic muffler

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Embodiment Construction

[0033] The core of the present invention is to provide a connecting device for connecting the urea nozzle and the SCR catalytic muffler, the connecting device can make the connection between the urea nozzle and the SCR catalytic muffler stable and reliable, and can solve the crystallization problem of the urea aqueous solution at the urea nozzle seat . Another core of the present invention is to provide an integrated SCR catalytic muffler including the above connecting device.

[0034] In order to make those skilled in the art better understand the solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0035] Please refer to Figure 2 to Figure 4 , figure 2 It is a structural schematic diagram of a specific embodiment of the connecting device provided by the present invention, image 3 for figure 2 The front view of the connecting device shown, Figure ...

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Abstract

The invention discloses a connection device, which is used for connecting a urea nozzle and an SCR (selective catalytic reduction) catalytic muffler and comprises a ring and a urea nozzle socket. The ring is connected with the SCR catalytic muffler and a gas intake connecting tube, and the urea nozzle socket is fixed on the ring and connected with the urea nozzle. Besides, the urea nozzle is mounted on the urea nozzle socket, and urea solution sprayed from the urea nozzle is mixed with tail gas to realize reduction reaction in the SCR catalytic muffler to remove nitric oxide in the tail gas, so that the tail gas can reach the tail gas emission standard. The invention further discloses an integrated SCR catalytic muffler comprising the connection device.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a connecting device for connecting a urea nozzle to an SCR catalytic muffler. In addition, the present invention also relates to an integrated SCR catalytic muffler comprising the above connection device. Background technique [0002] With the rapid development of my country's economic construction, diesel engines are gradually being widely used due to their high power and good economic benefits. [0003] The working principle of the diesel engine is to use compressed air to increase the air temperature, so that the air temperature exceeds the self-ignition ignition point of diesel, and then inject diesel, and the diesel spray can ignite and burn by itself while mixing with air. Therefore, diesel engines do not require an ignition system and have a relatively simple fuel supply system. [0004] Each working cycle of a diesel engine includes four strokes of intake, compression, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N3/28
Inventor 孙少军张纪元陶建忠王意宝张素英王奉双张建华
Owner WEICHAI POWER CO LTD