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Method for three-way catalytic carrier cleaning and reduction regeneration

A catalytic carrier and three-way catalytic converter technology, which is applied to engine components, noise reduction devices, machines/engines, etc., can solve the problems of catalyst falling off, insufficient power of automobiles, time-consuming and labor-intensive problems, and avoid the use of heating devices and drying operations Safe and effective treatment

Inactive Publication Date: 2017-03-15
威海顺畅环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] After the three-way catalytic converter is used for a long time, the oxides formed by the combustion of sulfur, lead in gasoline, phosphorus and zinc in the lubricating oil in the engine and the soot discharged from the engine are adsorbed on the catalyst of the three-way catalytic carrier. And part of the catalyst on the three-way catalytic carrier in the three-way catalytic converter falls off. Therefore, it not only reduces the conversion efficiency of the three-way catalytic converter, but also causes harmful gases such as CO, HC and NOx discharged from the automobile exhaust to exceed the standard; The blockage of the catalytic converter will lead to insufficient power of the car and increase the fuel consumption of the car.
[0004] In order to solve the above problems, the existing technology needs to disassemble the whole set of three-way catalytic converter from the car, then clean the three-way catalytic carrier with cleaning liquid, and after cleaning, restore and regenerate the three-way catalytic carrier with regeneration liquid. The operation process takes more than an hour, which is not only time-consuming and laborious, but also requires an external heating device for heating and baking

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] This embodiment provides a method for cleaning and reducing and regenerating a three-way catalytic carrier, which includes the following steps:

[0030] A. Spray the cleaning liquid into the three-way catalytic converter through the through hole provided on the three-way catalytic converter to clean the three-way catalytic carrier in the three-way catalytic converter; after cleaning, close the through hole and start the car engine to clean the three-way catalytic converter. The three-way catalytic carrier is dried, and the car engine is turned off after drying to facilitate the coating of the regeneration solution;

[0031] B. Open the through hole, and spray the regeneration liquid on the three-way catalytic carrier in the three-way catalytic converter through the through hole; after the spraying is completed, close the through hole and start the car engine again to dry the three-way catalytic carrier.

[0032] Compared with the prior art, the above method has the adva...

Embodiment 2

[0036] This embodiment provides a method for cleaning and reducing and regenerating a three-way catalytic carrier, which includes the following steps:

[0037] A. Use a lift to raise the car and find the three-way catalytic converter;

[0038] B. Select a hole opener to open holes on the side wall of the three-way catalytic converter to form a through hole for spraying cleaning liquid and regeneration liquid, and the through hole is located in the middle of the inclined plane of the inlet neck of the three-way catalytic converter. The diameter is 22mm;

[0039] C. Weld the boss nut at the opening of the through hole, the boss nut is located at the position corresponding to the through hole on the outside of the three-way catalytic converter, and the wide end of the boss nut is located near the opening of the through hole; then Screw the bolt matching the nut on the nut so that the opening / closing of the through hole can be controlled by the bolt;

[0040] D. Open the through...

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PUM

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Abstract

The invention provides a method for three-way catalytic carrier cleaning and reduction regeneration, and belongs to the technical field of automobile environmental protection. The method includes the following steps that A, cleaning fluid is sprayed into a three-way catalyst through a through hole formed in the three-way catalyst so that a three-way catalytic carrier can be cleaned; after cleaning is completed, the through hole is closed, an automobile engine is started for drying the three-way catalytic carrier, and the automobile engine is shut down after drying is completed; and B, the through hole is opened, and regenerated liquid is sprayed onto the three-way catalytic carrier through the through hole; after spraying is completed, the through hole is closed, and the automobile engine is started again to dry the three-way catalytic carrier. By means of the method for three-way catalytic carrier cleaning and reduction regeneration provided by the invention, the three-way catalytic carrier can achieve cleaning and reduction regeneration treatment without disassembling the complete set of three-way catalyst, and no external warming device is required.

Description

technical field [0001] The invention belongs to the technical field of automobile environmental protection, and in particular relates to a method for cleaning and reducing regeneration of a three-way catalytic carrier. Background technique [0002] The three-way catalytic converter is the most important external purification device installed in the automobile exhaust system. It is equipped with a three-way catalytic carrier inside, and the CO, HC and NO emitted from the exhaust gas of the automobile are removed by the catalyst on the three-way catalytic carrier. x Harmful gases such as carbon dioxide, water and nitrogen are converted into harmless carbon dioxide, water and nitrogen through oxidation and reduction. [0003] After the three-way catalytic converter is used for a long time, the oxides formed by the combustion of sulfur, lead in gasoline, phosphorus and zinc in the lubricating oil in the engine and the soot discharged from the engine are adsorbed on the catalyst ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B77/04F01N3/28
CPCF01N3/28F02B77/04Y02A50/20
Inventor 许礼德
Owner 威海顺畅环保科技有限公司