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Metal honeycomb carrier structure used for catalyst

A metal honeycomb carrier and catalyst technology, applied in catalyst carriers, physical/chemical process catalysts, chemical instruments and methods, etc., can solve problems affecting service life, cracking and damage, etc., to extend service life, reduce thermal stress, increase internal The effect of surface area

Inactive Publication Date: 2013-05-08
INST OF IND TECH GUANGZHOU & CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Each honeycomb hole 4 is surrounded by a corrugated plate 2 and a plate 3. At the working temperature, the corrugated plate 2 and the plate 3 will expand and deform when heated. , especially the deformation along the ring direction is different, resulting in alternating stress, resulting in excessive deformation of one side of the honeycomb hole, which easily exceeds its fatigue limit, resulting in cracking and damage, seriously affecting the service life

Method used

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  • Metal honeycomb carrier structure used for catalyst
  • Metal honeycomb carrier structure used for catalyst
  • Metal honeycomb carrier structure used for catalyst

Examples

Experimental program
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Effect test

Embodiment 1

[0018] refer to figure 2 , is a metal honeycomb carrier structure for catalysts, including an outer sleeve 1, a plurality of honeycomb holes 4 arranged in the outer sleeve 1 and surrounded by overlapping and rolling of planar plates 3 and corrugated plates 2, on one side of the honeycomb holes 4 An inflection point 5 is provided on the corrugated plate 2 of the side.

[0019] When in the working state, when the corrugated plate 2 is thermally expanded and deformed, its deformation direction is not limited to the circular direction, and the deformation from the inflection point 5 is increased, thereby reducing its deformation in the circular direction, which is consistent with the extension of the flat plate 3 The lengths are matched, thereby reducing the stress on the corrugated plate 2 and improving the cracking condition.

Embodiment 2

[0021] refer to image 3 , is another kind of metal honeycomb carrier structure for catalysts, including an outer sleeve 1, a plurality of honeycomb holes 4 arranged in the outer sleeve 1 and surrounded by overlapping and rolling of planar plates 3 and corrugated plates 2, one of the honeycomb holes 4 An inflection point portion 5 is provided on the corrugated plate 2 on one side, and a symmetrical inflection point portion 6 is provided on the corrugated plate 2 on the other side of the honeycomb hole 4 . The shape of a single honeycomb hole 4 is Ω-shaped.

[0022] When in the working state, when the corrugated plate 2 is thermally expanded and deformed, in addition to the elongation in the circular direction, the deformation direction can also be deformed from the inflection point 5 and the inflection point 6, thereby significantly reducing its deformation in the circular direction. The amount of deformation matches the elongation of the flat plate 3, thereby reducing the st...

Embodiment 3

[0024] refer to Figure 4 , which is another metal honeycomb support structure for catalysts, including an outer sleeve 1, a plurality of honeycomb holes 4 arranged in the outer sleeve 1 and surrounded by overlapping rolling of planar plates 3 and corrugated plates 2, one honeycomb hole 4 Inflection point portions 5 are respectively provided at the two end points of the side, and inflection point portions 6 are respectively provided at the two end points of the other side of the honeycomb hole 4 . The shape of a single side of the honeycomb hole 4 is arc-shaped.

[0025] When in the working state, when the corrugated plate 2 is thermally expanded and deformed, in addition to the elongation in the circular direction, the deformation direction can also be deformed from the inflection point 5 and the inflection point 6, thereby significantly reducing its deformation in the circular direction. The amount of deformation matches the elongation of the flat plate 3, thereby reducing ...

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Abstract

The invention discloses a metal honeycomb carrier structure used for catalyst. The metal honeycomb carrier structure used for the catalyst comprises a plurality of honeycomb holes which are enclosed by overlapping and rolling of surface plates and corrugated plates. At least one inflection point part is arranged on the corrugated plate of one side of each honeycomb hole. The metal honeycomb carrier structure used for the catalyst has the advantages of being firm, transformation of the surface plates and the corrugated plates is compatible under the working condition, compression resistance and bearing capacity is greatly improved, service life is long, meanwhile, a superficial area is increased, and the transformation rate is improved.

Description

technical field [0001] The invention relates to a metal honeycomb support structure for a catalyst. Background technique [0002] The catalyst carrier is the key component of the catalytic converter, and its materials are divided into ceramics and metals. Compared with the metal carrier, the ceramic carrier has smaller geometrical area, lower thermal conductivity, higher heat capacity, and poor shock resistance. Under the same efficiency, the converter using the ceramic carrier is bulky and takes up a lot of space. The metal carrier has good electrical conductivity, which can realize electric preheating, and can fundamentally solve the problems of high back pressure when the ceramic carrier is exhausted and a very low emission conversion rate during cold start, so the performance of the metal carrier is better than that of ceramics carrier. [0003] The common metal carrier structures currently on the market are as follows: figure 1 As shown in , in the outer sleeve 1, th...

Claims

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Application Information

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IPC IPC(8): F01N3/28B01J32/00
Inventor 周玲丰潘智玲杨岩丁桦
Owner INST OF IND TECH GUANGZHOU & CHINESE ACADEMY OF SCI
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