Mounting and exhaust treatment device for a close-coupled honeycomb catalyst module

Abstract

The utility model discloses a kind of installation piece and tail gas treatment equipment of compression type honeycomb catalyst module, belong to waste gas treatment technical field, to solve at least one problem in the sealing effect and installation stability of honeycomb catalyst of the installation of existing technology in honeycomb catalyst is easily corroded and falls off by adopting adhesive, direct in pipeline waste gas is easily leaked from gap and affects waste gas treatment effect.The utility model in the one end of compression connecting piece is connected with first compression unit, the other end of compression connecting piece is connected with second compression unit;The length of compression connecting piece between first compression unit and second compression unit is adjusted, so that the interval of first compression unit and second compression unit is reduced to compress honeycomb catalyst module;The outer wall of first compression unit and second compression unit cooperates with the inner wall of tail gas treatment pipeline.The utility model can be used for the installation of honeycomb catalyst module and tail gas treatment.

Description

Technical Field

[0001] This utility model belongs to the field of waste gas treatment technology, and in particular relates to an installation component for a compressed honeycomb catalyst module and a tail gas treatment device. Background Technology

[0002] Honeycomb catalysts are widely used in exhaust gas treatment and chemical reaction processes in industries, vehicles, and engines. In the exhaust pipes of coal-fired power plants, steel mills, and petrochemical plants, honeycomb catalysts can remove nitrogen oxides (NOx) from exhaust gases. In automotive exhaust systems, they can effectively reduce emissions of harmful gases such as carbon monoxide (CO), nitrogen oxides (NOx), and hydrocarbons (VOCs). In the petrochemical industry, honeycomb catalysts can be used in catalytic cracking and reforming processes to improve crude oil conversion rates and product quality.

[0003] Honeycomb catalysts are typically homogeneous honeycomb catalysts, made by coating precious metals or transition metals onto the surface of a ceramic or metal support under the action of a second support. Their cross-section is approximately 150mm × 150mm, with varying lengths, and they are then assembled into modules with different cross-sectional areas and heights.

[0004] Existing methods for installing honeycomb catalysts are mainly divided into small-dose installation and large-dose installation. For small-dose installation, due to the small number of catalysts, adhesives are typically used for installation and sealing. However, corrosive gases often flow through the pipeline, and the pipeline experiences continuous vibration during operation. After long-term use, the adhesive is prone to corrosion and detachment, thus affecting the sealing effect and installation stability of the honeycomb catalyst. For large-dose installation, due to the large number of catalysts, they are usually placed directly in the pipeline. This results in a large number of gaps between the outer wall of the honeycomb catalyst and the inner wall of the pipeline, allowing exhaust gas to easily leak from these gaps, severely affecting the exhaust gas treatment effect. Utility Model Content

[0005] Based on the above analysis, this utility model aims to provide an installation component and exhaust gas treatment equipment for a compressed honeycomb catalyst module, in order to solve at least one of the following problems in the prior art: the installation of honeycomb catalysts using adhesives is prone to corrosion and falling off, affecting the sealing effect and installation stability of the honeycomb catalysts; and the direct placement of the catalysts in pipelines makes it easy for exhaust gas to leak from gaps, affecting the exhaust gas treatment effect.

[0006] The purpose of this utility model is mainly achieved through the following technical solutions.

[0007] This utility model provides a clamping mounting component for a honeycomb catalyst module, including a clamping connector, a first clamping unit disposed at one end of the honeycomb catalyst module, and a second clamping unit disposed at the other end of the honeycomb catalyst module.

[0008] One end of the clamping connector is connected to the first clamping unit, and the other end of the clamping connector is connected to the second clamping unit;

[0009] Adjust the length of the clamping connector between the first clamping unit and the second clamping unit to reduce the distance between the first clamping unit and the second clamping unit in order to clamp the honeycomb catalyst module;

[0010] The outer walls of the first and second clamping units mate with the inner wall of the exhaust gas treatment pipeline.

[0011] Furthermore, there are multiple clamping connectors, which are evenly arranged along the axial direction of the honeycomb catalyst module.

[0012] Furthermore, both the first and second clamping units include an outer connecting flange and a connecting sleeve. The connecting sleeve is fitted onto the end of the honeycomb catalyst module. An inner connecting flange is provided at the end of the connecting sleeve near the outer connecting flange. The clamping connector passes through the inner connecting flange and the outer connecting flange and is detachably connected to both.

[0013] Furthermore, the inner diameter of the connecting outer flange is smaller than the outer diameter of the honeycomb catalyst module.

[0014] Furthermore, the first and second clamping units also include a sealing ring, which is located between the inner flange and the outer flange, and the inner diameter of the sealing ring is smaller than the outer diameter of the honeycomb catalyst module.

[0015] Furthermore, the outer diameter of the sealing ring is larger than the outer diameter of the connecting outer flange and the outer diameter of the connecting inner flange, and the outer edge of the sealing ring protrudes beyond the outer edges of the connecting outer flange and the connecting inner flange.

[0016] Furthermore, the thickness of the sealing ring is 5mm to 10mm.

[0017] Furthermore, the clamping mounting component also includes a supplementary connector that passes through the outer flange and the inner flange and is fixedly connected to both the outer flange and the inner flange.

[0018] Furthermore, there are multiple supplementary connectors, which are evenly arranged along the outer edge of the connecting outer flange or the connecting inner flange.

[0019] This utility model also provides an exhaust gas treatment device, including an exhaust gas treatment pipeline and a compression mounting component for the aforementioned honeycomb catalyst module.

[0020] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0021] A) The honeycomb catalyst module clamping mounting component provided by this utility model has a first clamping unit and a second clamping unit that clamp the honeycomb catalyst module from both ends in a bidirectional manner, which can firmly fix the honeycomb catalyst module in a preset position in the exhaust gas treatment pipeline, improving the positional stability of the honeycomb catalyst module during installation and use. At the same time, since the first clamping unit and the second clamping unit can directly cooperate with the inner wall of the exhaust gas treatment pipeline for positioning, there is no need to weld brackets or add positioning rings or other additional structures in the exhaust gas treatment pipeline during installation. It is only necessary to push the honeycomb catalyst module with the clamping mounting component installed into the preset position. When replacing the honeycomb catalyst module, the honeycomb catalyst module with the clamping mounting component installed can also be removed as a whole. Installation, maintenance and replacement are simple and convenient.

[0022] B) The honeycomb catalyst module compression mounting component provided by this utility model has an embedded fit between the outer walls of the first compression unit and the second compression unit and the inner wall of the exhaust gas treatment pipeline, which can effectively reduce the assembly gap between the first compression unit and the second compression unit and the exhaust gas treatment pipeline, and prevent the exhaust gas from escaping through the gap, thereby effectively improving the exhaust gas treatment effect.

[0023] C) The honeycomb catalyst module clamping mounting component provided by this utility model does not rely on adhesives. Instead, it is installed by clamping with clamping connectors. The mechanical connection strength between the clamping connectors and the first and second clamping units, as well as the fit strength between the first and second clamping units and the exhaust gas treatment pipeline, is much higher than the bonding strength of adhesives. Moreover, it will not change significantly during long-term use. This effectively prevents the honeycomb catalyst module from falling off, which could lead to blockage of the exhaust gas treatment pipeline or damage to the equipment, thus reducing the risk of safety production.

[0024] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the embodiments described and the accompanying drawings, which are particularly pointed out. Attached Figure Description

[0025] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0026] Figure 1 This is a schematic diagram of the structure of the compression mounting component of the honeycomb catalyst module provided in Embodiment 1 of this utility model;

[0027] Figure 2A cross-sectional view (AA) of the clamping mounting component of the honeycomb catalyst module provided in Embodiment 1 of this utility model;

[0028] Figure 3 for Figure 2 A partial schematic diagram.

[0029] Figure label:

[0030] 1-Crimping connector; 2-Honeycomb catalyst module; 3-Outer flange; 4-Connecting sleeve; 5-Inner flange; 6-Sealing ring; 7-Supplementary connector. Detailed Implementation

[0031] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0032] Example 1

[0033] This embodiment provides a compression mounting component for a honeycomb catalyst module, see [link / reference]. Figures 1 to 2 It includes a clamping connector 1 (e.g., a clamping bolt), a first clamping unit located at one end of the honeycomb catalyst module 2, and a second clamping unit located at the other end of the honeycomb catalyst module 2. One end of the clamping connector 1 is connected to the first clamping unit, and the other end of the clamping connector 1 is connected to the second clamping unit. The length of the clamping connector 1 between the first clamping unit and the second clamping unit is adjusted so that the distance between the first clamping unit and the second clamping unit is reduced to clamp the honeycomb catalyst module 2. The outer walls of the first clamping unit and the second clamping unit are fitted with the inner wall of the exhaust gas treatment pipeline.

[0034] Compared with the prior art, the compression mounting component of the honeycomb catalyst module provided in this embodiment has the following advantages: First, the first compression unit and the second compression unit compress the honeycomb catalyst module 2 from both ends in a bidirectional manner, which can firmly fix the honeycomb catalyst module 2 in the preset position in the exhaust gas treatment pipeline, thereby improving the positional stability of the honeycomb catalyst module 2 during installation and use. At the same time, since the first compression unit and the second compression unit can directly cooperate with the inner wall of the exhaust gas treatment pipeline for positioning, there is no need to weld brackets or add positioning rings or other additional structures in the exhaust gas treatment pipeline during installation. It is only necessary to push the honeycomb catalyst module 2 with the compression mounting component installed into the preset position. When replacing the honeycomb catalyst module 2, the entire honeycomb catalyst module 2 with the compression mounting component installed can also be removed. Installation, maintenance and replacement are simple and convenient.

[0035] On the other hand, the outer walls of the first and second pressing units and the inner wall of the exhaust gas treatment pipeline form an embedded fit, which can effectively reduce the assembly gap between the first and second pressing units and the exhaust gas treatment pipeline, prevent exhaust gas from escaping through the gap, and thus effectively improve the exhaust gas treatment effect.

[0036] On the other hand, the aforementioned honeycomb catalyst module's compression mounting component does not rely on adhesives. Instead, it is installed using the compression connector 1. The mechanical connection strength between the compression connector 1 and the first and second compression units, as well as the fit strength between the first and second compression units and the exhaust gas treatment pipeline, is far greater than the bonding strength of adhesives. Moreover, this connection will not change significantly during long-term use. This effectively prevents the honeycomb catalyst module 2 from falling off, which could lead to blockage of the exhaust gas treatment pipeline or damage to the equipment, thus reducing the risk of safety production issues.

[0037] In order to provide sufficient clamping force, for example, there are multiple clamping connectors 1, which are evenly arranged along the axial direction of the honeycomb catalyst module 2.

[0038] Specifically, the structures of the first and second pressing units are basically the same, both including an outer flange 3 and a connecting sleeve 4. The connecting sleeve 4 is sleeved on the end of the honeycomb catalyst module 2. The end of the connecting sleeve 4 near the outer flange 3 is provided with an inner flange 5. The pressing connector 1 passes through the inner flange 5 and the outer flange 3 and is detachably connected to both.

[0039] It is understandable that, in order to effectively compress the honeycomb catalyst module 2, the inner diameter of the connecting outer flange 3 is smaller than the outer diameter of the honeycomb catalyst module 2, and the honeycomb catalyst module 2 is compressed by the side wall of the connecting outer flange 3 facing the honeycomb catalyst module 2.

[0040] To improve the sealing performance of the contact surface between the outer flange 3 and the honeycomb catalyst module 2, and further reduce exhaust gas escape, the first and second clamping units also include a sealing ring 6. The sealing ring 6 is located between the inner flange 5 and the outer flange 3. (See [reference]) Figure 3 The inner diameter of the sealing ring 6 is smaller than the outer diameter of the honeycomb catalyst module 2. The sealing ring 6 is used to achieve effective sealing between the contact surface of the connecting outer flange 3 and the honeycomb catalyst module 2, and between the connecting outer flange 3 and the connecting inner flange 5.

[0041] In order to improve the sealing performance between the compression mounting of the honeycomb catalyst module and the exhaust gas treatment pipeline, the outer diameter of the sealing ring 6 is larger than the outer diameter of the connecting outer flange 3 and the outer diameter of the connecting inner flange 5. The outer edge of the sealing ring 6 protrudes from the outer edge of the connecting outer flange 3 and the connecting inner flange 5. Through the elastic deformation of the outer edge of the sealing ring 6, the sealing fit between the compression mounting of the honeycomb catalyst module and the exhaust gas treatment pipeline is achieved.

[0042] For example, the sealing ring 6 is a fluororubber elastic ring or a silicone rubber elastic ring with a thickness of 5 mm to 10 mm.

[0043] In order to further improve the connection stability between the outer flange 3 and the inner flange 5, the clamping mounting part of the above-mentioned honeycomb catalyst module also includes a supplementary connector 7 (e.g., a supplementary connecting bolt). The supplementary connector 7 passes through the outer flange 3 and the inner flange 5 and is fixedly connected to the outer flange 3 and the inner flange 5.

[0044] For example, there are multiple supplementary connectors 7, which are evenly arranged along the outer edge of the connecting outer flange 3 or the connecting inner flange 5.

[0045] Example 2

[0046] This embodiment provides an exhaust gas treatment device, including an exhaust gas treatment pipeline and a compression mounting component for the honeycomb catalyst module provided in Embodiment 1.

[0047] Compared with the prior art, the beneficial effects of the exhaust gas treatment equipment provided in this embodiment are basically the same as those of the compression mounting component of the honeycomb catalyst module provided in Embodiment 1, and will not be described in detail here.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A compression mounting component for a honeycomb catalyst module, characterized in that, It includes a clamping connector, a first clamping unit located at one end of the honeycomb catalyst module, and a second clamping unit located at the other end of the honeycomb catalyst module; One end of the clamping connector is connected to the first clamping unit, and the other end of the clamping connector is connected to the second clamping unit; Adjust the length of the clamping connector between the first clamping unit and the second clamping unit to reduce the distance between the first clamping unit and the second clamping unit in order to clamp the honeycomb catalyst module; The outer walls of the first and second clamping units mate with the inner wall of the exhaust gas treatment pipeline.

2. The compression mounting component for the honeycomb catalyst module according to claim 1, characterized in that, The number of clamping connectors is multiple, and the multiple clamping connectors are evenly arranged along the axial direction of the honeycomb catalyst module.

3. The compression mounting component for the honeycomb catalyst module according to claim 1, characterized in that, Both the first and second clamping units include an outer connecting flange and a connecting sleeve. The connecting sleeve is fitted onto the end of the honeycomb catalyst module. An inner connecting flange is provided at the end of the connecting sleeve near the outer connecting flange. The clamping connector passes through the inner connecting flange and the outer connecting flange and is detachably connected to both.

4. The compression mounting component for the honeycomb catalyst module according to claim 3, characterized in that, The inner diameter of the connecting outer flange is smaller than the outer diameter of the honeycomb catalyst module.

5. The compression mounting component for the honeycomb catalyst module according to claim 3, characterized in that, The first and second clamping units also include a sealing ring, which is located between the inner flange and the outer flange, and the inner diameter of the sealing ring is smaller than the outer diameter of the honeycomb catalyst module.

6. The compression mounting component for the honeycomb catalyst module according to claim 5, characterized in that, The outer diameter of the sealing ring is larger than the outer diameter of the connecting outer flange and the outer diameter of the connecting inner flange, and the outer edge of the sealing ring protrudes beyond the outer edges of the connecting outer flange and the connecting inner flange.

7. The compression mounting component for the honeycomb catalyst module according to claim 5, characterized in that, The thickness of the sealing ring is 5mm to 10mm.

8. The compression mounting component for the honeycomb catalyst module according to any one of claims 1 to 7, characterized in that, The compression mounting component also includes a supplementary connector, which passes through the outer flange and the inner flange and is fixedly connected to both the outer flange and the inner flange.

9. The compression mounting component for the honeycomb catalyst module according to claim 8, characterized in that, The number of supplementary connectors is multiple, and the multiple supplementary connectors are evenly arranged along the outer edge of the connecting outer flange or the connecting inner flange.

10. A tail gas treatment device, characterized in that, It includes exhaust gas treatment piping and a compression mounting component for the honeycomb catalyst module as described in any one of claims 1 to 9.

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