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A device for dissolving urea crystals

A technology of crystals and urea, applied in exhaust devices, mufflers, exhaust treatment and other directions, can solve problems such as urea crystallization

Active Publication Date: 2020-06-05
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to propose a device for dissolving urea crystals, aiming at solving the problem of urea crystallization

Method used

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  • A device for dissolving urea crystals
  • A device for dissolving urea crystals
  • A device for dissolving urea crystals

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Embodiment Construction

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0037] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.

[0038] In addition, if there are descriptions involving "first", "second" and ...

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Abstract

The invention discloses a urea crystallized substance dissolving device which is used for being mounted on a urea mixing pipe assembly and dissolving a urea crystallized substance. The urea mixing pipe assembly comprises a filling port and a return port. The urea crystallized substance dissolving device comprises a solvent storage unit and an filling mechanism. The solvent storage unit is used forstoring a solvent capable of dissolving the urea crystallized substance. The solvent storage unit is provided with an outlet and an inlet. The inlet is used for communicating with the return port ofthe urea mixing pipe assembly to fill the solvent stored in the solvent storage unit into the urea mixing pipe assembly. Through the urea crystallized substance dissolving device, the urea mixing pipeassembly can be filled with the solvent all the time to enhance dissolving and soaking on the crystallized substance. Meanwhile, the solvent in the urea mixing pipe assembly keeps flowing, so that the concentration of the solution in the urea mixing pipe assembly is low and beneficial to dissolving, loosening and falling of the crystallized substance, and the crystallized substance can get into the solvent storage unit as far as possible.

Description

technical field [0001] The invention relates to the technical field of automobile emission, in particular to the technical field of catalytic reduction, in particular to a device for dissolving urea crystals. Background technique [0002] The SCR technology (catalytic reduction technology) route is one of the mainstream technology routes for heavy-duty diesel vehicles to achieve emission standards above National IV. The most common failure mode of the SCR technology route is urea crystallization. After the urea crystallizes, the crystals will quickly accumulate, and in severe cases, the flow section of the exhaust pipe will be blocked, and the engine will even be turned off due to poor exhaust. [0003] In order to solve the problem of urea crystallization, the existing solutions are mainly to optimize the design of urea nozzles, exhaust pipes and urea mixers, but in the above solutions, it is still impossible to completely eliminate urea crystallization, and urea will still...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N3/20F01N3/28
CPCF01N3/2066F01N3/28F01N2610/1486
Inventor 赵文仲潘月成滕建耐张雪林许涛雷淋森张良超杨冰朱东升
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD