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Three-way catalytic converter and preparation method thereof

A three-way catalytic converter and equipment technology, applied in the field of purification, can solve the problems of poor impact resistance, high temperature resistance, small thermal deformation, low mechanical strength, etc., and achieve simplified molding process, improved bonding strength, geometric surface area and pores The effect of high density

Active Publication Date: 2018-05-22
广州鑫研锦增材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The metal or ceramic carrier is the core component of the three-way catalytic converter. Under the current conventional technical conditions, the monolithic honeycomb ceramic carrier is generally made of cordierite extrusion. It has the characteristics of high temperature resistance and small thermal deformation, but the disadvantage is heat conduction Poor performance, slow temperature rise, low mechanical strength, poor impact resistance

Method used

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  • Three-way catalytic converter and preparation method thereof
  • Three-way catalytic converter and preparation method thereof
  • Three-way catalytic converter and preparation method thereof

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preparation example Construction

[0035] This embodiment also relates to a method for preparing the three-way catalytic converter 10 . The preparation method of this three-way catalytic converter 10 comprises the steps:

[0036] Design the housing 100 structure that has accommodating chamber and the air inlet of relative arrangement and air outlet with computer design three-way catalytic converter 10 according to design rule; Then design the structure of honeycomb unit 210 with computer, the length of the honeycomb column of honeycomb unit 210 is 1mm, the volume of the honeycomb unit 210 is 1mm 3 ; Then use a computer to design the shell structure 220 of the honeycomb carrier 200 ; then in 3-matic, use a plurality of honeycomb units 210 to fill the above shell structure 220 to form the above carrier 200 .

[0037] The pore density of the carrier 200 is designed to vary between 400-600 mesh, and the pore density of the carrier 200 is linearly gradient from 600 mesh to 400 mesh from the air inlet to the air out...

Embodiment 1

[0043] Embodiment 1 An integrated three-way catalytic converter 10 is manufactured by using 316L stainless steel metal powder material. At first, design the housing 100 structure of three-way catalytic converter 10 with computer according to design rule, the diameter of housing 100 is 140mm, long 150mm; Refer to figure 2 Shown, then design the structure of honeycomb unit 210 with computer, the honeycomb post length of honeycomb unit 210 is 1mm, and the volume of honeycomb unit 210 is 1mm 3 ; see image 3 As shown, then design the shell structure 220 of the honeycomb carrier 200 with a computer; see image 3 As shown, then in 3-matic, multiple honeycomb units 210 are used to fill the above-mentioned shell structure 220 to form the above-mentioned carrier 200. The size of the pores is regulated by the scaling ratio of the honeycomb unit structure, and finally the honeycomb from the air inlet to the air outlet is obtained. The pores of the carrier 200 are linearly changed from...

Embodiment 2

[0045] Embodiment 2 The integrated three-way catalytic converter 10 is manufactured by using 310 stainless steel metal powder material. At first, design the housing 100 structure of three-way catalytic converter 10 with computer according to design rule, the diameter of housing 100 is 120mm, long 150mm; Then design the structure of honeycomb unit 210 with computer, the honeycomb column length of honeycomb unit 210 is 1mm, The volume of the honeycomb unit 210 is 1mm 3 Then design the shell structure 220 of the cellular carrier 200 with a computer; then in 3-matic, use a plurality of honeycomb units 210 to fill the above-mentioned shell structure 220, the size of the pores is regulated by the scaling ratio of the honeycomb unit structure, and finally get The pores of the honeycomb carrier 200 change linearly from 600 mesh to 400 mesh from the air inlet to the air outlet. Then import the model of the shell 100 structure of the computer-designed three-way catalytic converter 10 a...

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Abstract

The invention discloses a three-way catalyst and a preparation method thereof. The three-way catalyst comprises a shell and a carrier. The shell is provided with a containing cavity, an air inlet and an air outlet, wherein the air inlet and the air outlet communicate with the containing cavity and distributed in opposite positions in the shell. A plurality of channels penetrate through one end to the opposite end of the carrier to enable the carrier to be in a honeycomb shape, and the carrier is arranged in the containing cavity. The porosity of the carrier linearly changes from 600 meshes to 400 meshes from the air inlet to the air outlet. The three-way catalyst saves materials, is high in catalytic efficiency, simple in manufacturing process and short in production cycle.

Description

technical field [0001] The invention relates to the field of purification, in particular to a three-way catalytic converter and a preparation method thereof. Background technique [0002] At present, the problem of environmental pollution is becoming more and more serious, and the requirements and standards for automobile exhaust emissions are becoming more and more strict all over the world. In order to meet the specified exhaust emission standards, automobile manufacturers have installed three-way catalytic converters in automobile exhaust emission systems. Three-way catalytic converters The device plays a role in HC, C0, N0 x The function of purifying harmful gases such as air pollution plays a great role in solving the problem of automobile exhaust pollution. [0003] The metal or ceramic carrier is the core component of the three-way catalytic converter. Under the current conventional technical conditions, the monolithic honeycomb ceramic carrier is generally made of c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N3/28G06F17/50
CPCF01N3/28G06F30/17
Inventor 佟鑫黄玉山
Owner 广州鑫研锦增材科技有限公司