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 directi

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
Comparison scheme
Effect test

Example Embodiment

[0017] Example 1:

[0018] See 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 a flat plate 3 and a corrugated plate 2 overlapped and rolled, on one side of the honeycomb hole 4 An inflection point 5 is provided on the side corrugated plate 2.

[0019] When in working condition, when the corrugated plate 2 undergoes thermal expansion and deformation, 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, and the flat plate 3 extends The length is matched to reduce the force on the corrugated plate 2 and improve the cracking condition.

Example Embodiment

[0020] Example 2:

[0021] See image 3 , Is another 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 a flat plate 3 and a corrugated plate 2 overlapped and rolled, one in the honeycomb hole 4 An inflection point 5 is provided on the corrugated plate 2 on the side, and a symmetrical inflection point 6 is provided on the corrugated plate 2 on the other side of the honeycomb hole 4. The shape of the single honeycomb hole 4 is Ω-shaped.

[0022] When the corrugated plate 2 undergoes thermal expansion and deformation under working conditions, in addition to the elongation in the circular direction, its deformation direction can also be deformed from the inflection point 5 and the inflection point 6 respectively, thereby significantly reducing its in the circular direction. The amount of deformation is matched with the elongation of the flat plate 3, thereby reducing the stres...

Example Embodiment

[0023] Example 3:

[0024] See Figure 4 , 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 a flat plate 3 and a corrugated plate 2, one in the honeycomb hole 4 Inflection points 5 are respectively provided at two end points of the side, and inflection points 6 are respectively provided at two end points of the other side of the honeycomb hole 4. The shape of a single side of the honeycomb hole 4 is a circular arc shape.

[0025] When in working condition, when the corrugated plate 2 undergoes thermal expansion and deformation, in addition to the elongation in the annular direction, the deformation direction can also be deformed from the inflection point 5 and the inflection point 6 respectively, thereby significantly reducing its in the annular direction. The amount of deformation is matched with the elongation of the flat pl...

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PUM

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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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