Honeycomb type VOCs catalyst structure

Abstract

The utility model discloses a honeycomb type VOCs (Volatile Organic Compounds) catalyst structure in the field of VOCs catalyst structures, which comprises an outer frame body, a plurality of inner containers are arranged in the outer frame body, a plurality of cross-shaped separation frames are also arranged in the outer frame body, and the surrounding space of the outer frame body is divided into a plurality of mutually independent loading spaces by the cross-shaped separation frames; each inner container is placed in the corresponding loading space; and the end part of the cross-shaped separation frame is embedded into the outer frame body and is fixed with the outer frame body. According to the utility model, the catalyst structure is divided into a plurality of mutually independent areas through the inner container in a manner of separating the blocks, and the outer frame body is utilized to realize deformation confrontation, so that the catalyst can tolerate higher temperature, and the destructive problems such as cracking and the like are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to VOCs catalyst structure field, specifically a honeycomb type VOCs catalyst structure. BACKGROUND

[0002] In the existing industrial VOCs tail gas treatment system, the catalyst device of large size generally adopts the whole catalyst, and the structure is that the metal outer shell is wrapped around the metal inner container, the inner container is the whole metal honeycomb structure, the high temperature resistance is poor, and the inner container is prone to cracking and collapse during use; the compression strength is poor, and the inner container is prone to deformation under stress when melting; after the inner container melts and deforms, the outer shell is separated, the catalyst is damaged, cracks appear, and the catalytic performance is reduced; at the same time, due to the low heat storage capacity, the service life of the catalyst is reduced due to frequent temperature rising and falling.

[0003] Therefore, how to enhance the high temperature resistance of the catalyst structure and avoid the cracking of the catalyst structure during use has become a problem to be solved in the field of VOCs catalyst structure. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the defects of poor high temperature resistance of the catalyst structure in the prior art, easy cracking and expansion and extrusion deformation in high temperature, and provides a honeycomb type VOCs catalyst structure, which divides the catalyst structure into a plurality of independent regions by the inner container through the way of partition block, and realizes deformation resistance by the outer frame body, so that the catalyst can withstand higher temperature and avoid destructive problems such as cracking.

[0005] The utility model mainly realizes the purpose through the following technical scheme:

[0006] A honeycomb type VOCs catalyst structure, comprising an outer frame body, a plurality of inner containers are arranged in the outer frame body, a plurality of cross partition racks are further arranged in the outer frame body, the cross partition racks separate the surrounding space of the outer frame body into a plurality of independent loading spaces, and the inner container is arranged in each loading space.

[0007] The end of the cross partition rack is embedded in the outer frame body and fixed with the outer frame body.

[0008] At present, the VOCs catalyst structure in the prior art is generally a monolithic plate type structure, and the inner container produces a catalytic effect; different sizes of catalysts are required to adapt to different working environments, and in the industrial field, large-size catalyst structures are required to adapt to the increase of the catalytic area; due to the influence of the catalytic efficiency and the physical properties of the catalyst itself, the size of the inner container is limited, and the larger the inner container is, the more prone to cracking, local collapse, reduced catalytic performance or thermal deformation of the catalyst structure due to uneven heating or shear stress and other factors; therefore, the size of the inner container cannot be infinitely increased; therefore, if the area of the catalyst needs to be increased, a plurality of inner containers need to be bundled together and fixed by an outer frame to increase the catalytic area; however, the inner containers may be pressed and collided with each other, which may cause damage to the inner containers and affect the normal use of the catalyst.

[0009] In the utility model, after the outer frame body is limited, a plurality of inner containers are separated from each other by the cross partition frame, and each inner container is independently limited by the loading space; when the catalyst structure is heated, the inner containers will expand and press the outer frame body and the cross partition frame, but will not press each other; the cross partition frame and the inner container, and the outer frame body and the inner container can effectively withstand the deformation amount after being heated, and direct contact between the inner containers is avoided, and the strength of the outer frame body and the cross partition frame is improved to avoid cracking of the catalyst structure.

[0010] In the utility model, the end portion of the cross partition frame is embedded in the outer frame body, and the nested structure design can effectively avoid cracking of the connecting portion due to thermal stress when being heated, thereby affecting the integrity of the catalyst structure; the utility model can effectively improve the temperature resistance by embedding the cross partition frame in the outer frame body.

[0011] Further, the outer frame body comprises a frame body, an outer cladding layer is wrapped outside the frame body, a plurality of side plates are arranged in the frame body, and the side plates surround to form the surrounding space.

[0012] An embedding groove is arranged on the side plate and vertically penetrates the side plate, and the cross partition frame is embedded in the embedding groove.

[0013] In the utility model, the frame body is used for bearing the overall weight of the structure, and the frame body can also limit the shape of the structure, thereby facilitating splicing to form a catalyst structure with a larger covering area; the side plates can receive the inner containers in a surface connection mode, thereby increasing the contact area of the inner containers and the outer frame body, and avoiding damage to the catalyst structure caused by local deformation by increasing the stress area.

[0014] Further, the outer frame has several top corners, and gaps are arranged at the top corners.

[0015] The gap corner can accommodate the local deformation of the inner container or the outer frame, and avoid damage to the catalyst structure.

[0016] Further, the gap corner includes an arc-shaped end, which is fixed to the outer frame, and a connecting gap is left on the side surface of the outer frame at the arc-shaped end, which can accommodate the thermal deformation of the inner container and the outer frame.

[0017] In the utility model, the inner container will be deformed when heated, and the outer frame will also be deformed when heated, so that the utility model can accommodate sufficient thermal deformation of the outer frame, and effectively accommodate the extrusion of the inner container, thereby avoiding the damage to the structure of the inner container or the outer frame caused by the excessively compact structure of the catalyst structure.

[0018] Further, the cross partition frame includes a first baffle assembly and a second baffle assembly, and the second baffle assembly is perpendicular to the first baffle assembly and passes through the first baffle assembly.

[0019] A cross cover plate is arranged above the first baffle assembly and the second baffle assembly, which can completely cover the top surface of the first baffle assembly and the second baffle assembly, and the cross cover plate is riveted to the first baffle assembly and the second baffle assembly.

[0020] In the utility model, the first baffle assembly and the second baffle assembly can define the area of the fixed inner container by being perpendicular to each other, and make the loading area of the inner container evenly distributed, and can limit the inner container by the cross cover plate, enhance the position stability of the inner container, and enhance the connection stability by riveting.

[0021] Further, the first baffle assembly includes a first baffle, and the second baffle assembly passes through the first baffle.

[0022] A first gap groove is arranged between the first baffle and the cross cover plate.

[0023] In the utility model, the first baffle and the second baffle are riveted in a penetrating form, so that the connection of the first baffle assembly and the second baffle assembly is stable, and the first gap groove between the first baffle and the cross cover plate can accommodate the deformation amount generated when the inner container and the first baffle are deformed by heat, thereby avoiding damage to the catalyst structure.

[0024] Further, the second baffle assembly comprises a second baffle plate, the second baffle plate passes through the first baffle plate, rivets are arranged on the cross cover plate, the rivets are inserted into the second baffle plate through the cross cover plate and the first baffle plate, and riveting is performed;

[0025] A second gap groove is arranged between the second baffle plate and the cross cover plate.

[0026] The first baffle plate and the second baffle plate are nested through the rivets, and the connection effect can be effectively achieved, so that the connection stability of the utility model is enhanced, and the second gap groove is used for accommodating expansion deformation generated when being heated.

[0027] Further, the rivet comprises a rivet cap and a cross rivet rod, the cross rivet rod sequentially passes through the cross cover plate, the first baffle plate and the second baffle plate, both ends of the cross rivet rod are provided with the rivet cap, and the rivet cap is fixed with the cross rivet rod.

[0028] In the utility model, the rivet is adapted to the perpendicularity of the first baffle plate and the second baffle plate through the cross rivet rod, the cross rivet rod can not only effectively connect the first baffle plate and the second baffle plate through the penetration, but also can be respectively embedded in the first baffle plate and the second baffle plate, so that the limiting capacity of the cross rivet rod to the first baffle plate and the second baffle plate is enhanced, and the rivet cap is used for limiting the cross rivet rod to avoid the cross rivet rod from being pulled out.

[0029] Compared with the prior art, the utility model has the following beneficial effects:

[0030] (1) in the utility model, after the outer frame body is limited, a plurality of inner containers are separated from each other through the cross partition frame, and each inner container is independently limited through the loading space, when the catalyst structure is heated, the inner container expands and extrudes the outer frame body and the cross partition frame, but does not extrude each other, the cross partition frame and the inner container, and the outer frame body and the inner container can effectively bear the deformation amount after being heated, and direct contact between the inner containers is avoided, the strength of the outer frame body and the cross partition frame is improved, and the cracking of the catalyst structure is avoided.

[0031] (2) in the utility model, the end portion of the cross partition frame is embedded in the outer frame body, through the nested structure design, the cracking of the connecting part due to thermal stress when being heated can be effectively avoided, the integrity of the catalyst structure is affected, the utility model can effectively utilize the design that the cross partition frame is embedded in the outer frame body to improve the temperature resistance.

[0032] (3) the gap corner in the utility model can accommodate the local deformation of the inner container or the outer frame body through the gap, and the catalyst structure is prevented from being damaged. Attached Figure Description

[0033] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0034] Figure 1 This is a schematic diagram of the structure of this utility model;

[0035] Figure 2 This is a top view of the present invention;

[0036] Figure 3 This utility model Figure 2 Enlarged view of part A in the middle;

[0037] Figure 4 This is a schematic diagram of the connection structure between the outer frame and the cross-shaped divider of this utility model;

[0038] Figure 5 This is a cross-sectional view of the present invention;

[0039] Figure 6 This is a cross-sectional view of the present invention from another perspective;

[0040] Figure 7 This is a schematic diagram of the rivet structure of this utility model;

[0041] The names corresponding to the reference numerals in the attached drawings are as follows: 1. Inner liner; 2. Outer frame; 3. Embedded groove; 4. Cross divider; 5. Gap corner; 6. Weld; 21. Outer covering layer; 22. Frame body; 23. Side plate; 41. Rivet; 42. Cross cover plate; 43. First gap groove; 44. First baffle; 45. Second gap groove; 46. Second baffle; 411. Nail head; 412. Cross nail rod; 51. Arc-shaped end; 52. Connection gap. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0043] Example:

[0044] like Figures 1-7 As shown, this embodiment relates to a honeycomb VOCs catalyst structure, including an outer frame 2, a plurality of inner liner 1 inside the outer frame 2, and a plurality of cross-shaped partitions 4 inside the outer frame 2. The cross-shaped partitions 4 divide the enclosing space of the outer frame 2 into a plurality of independent loading spaces, and each loading space contains an inner liner 1.

[0045] The end of the cross partition frame 4 is embedded in the outer frame body 2 and fixed with the outer frame body 2.

[0046] In the embodiment, after the basic limiting is realized by the outer frame body 2, the several inner containers 1 are separated from each other by the cross partition frame 4, and each inner container 1 is independently limited by the loading space. When the catalyst structure is heated, the inner container 1 will expand and press the outer frame body 2 and the cross partition frame 4, but will not press each other. The cross partition frame 4 and the inner container 1, and the outer frame body 2 and the inner container 1 can effectively bear the deformation amount after being heated, and the direct contact between the inner container 1 and the inner container 1 can be effectively avoided. The strength of the outer frame body 2 and the cross partition frame 4 is improved to avoid the cracking of the catalyst structure and other problems.

[0047] In preparation of the catalyst structure, the embodiment is spliced according to the size of the required catalyst structure. The mutual connection of the outer frame body 2 realizes the manufacturing of a larger size catalyst structure. Each catalyst structure has an outer frame body 2 that can independently perform catalytic work, thereby accommodating sufficient inner containers 1 for catalysis. The surrounding space of the cross partition frame 4 and the outer frame body 2 can effectively limit the position of the catalyst inner container 1, so that the catalytic performance remains in a stable state.

[0048] The outer frame body 2 includes a frame body 22, and an outer cladding layer 21 is wrapped outside the frame body 22. A plurality of side plates 23 are arranged in the frame body 22, and the side plates 23 surround to form the surrounding space.

[0049] The side plate 23 is provided with an embedded groove 3, the embedded groove 3 vertically penetrates the side plate 23, and the cross partition frame 4 is embedded in the embedded groove 3.

[0050] The outer frame body 2 has several top corners, and the gap corner 5 is arranged at the top corner. The gap corner 5 can be deformed by extrusion.

[0051] The gap corner 5 includes an arc-shaped end head 51, and the arc-shaped end head 51 is fixed with the outer frame body 2. The side surface of the outer frame body 2 leaves a connection gap 52 at the arc-shaped end head 51, and the connection gap 52 can accommodate the thermal deformation of the inner container 1 and the thermal deformation of the outer frame body 2.

[0052] In the embodiment, the frame body 22 in the outer frame body 2 can bear the overall weight of the structure, and the gap corner 5 is used to accommodate the thermal deformation.

[0053] When the outer frame 2 is heated, thermal deformation occurs, and the inner container 1 is also subjected to thermal deformation. If there is no gap to accommodate the deformation, the adjacent parts will be pressed against each other, which may cause cracking and other damage. In this embodiment, the connection gap is used to accommodate the thermal deformation, thereby avoiding the mutual pressing of the parts and reducing the risk of cracking.

[0054] The cross partition frame 4 includes a first baffle assembly and a second baffle assembly, and the second baffle assembly is perpendicular to and passes through the first baffle assembly.

[0055] A cross cover plate 42 is arranged above the first baffle assembly and the second baffle assembly, which can completely cover the top surface of the first baffle assembly and the second baffle assembly, and the cross cover plate 42 is riveted with the first baffle assembly and the second baffle assembly.

[0056] The first baffle assembly includes a first baffle plate 44, and the second baffle assembly passes through the first baffle plate 44.

[0057] A first gap groove 43 is arranged between the first baffle plate 44 and the cross cover plate 42.

[0058] The second baffle assembly includes a second baffle plate 46, and the second baffle plate 46 passes through the second baffle plate 46. The cross cover plate 42 is provided with a rivet 41, which penetrates the cross cover plate 42 and the first baffle plate 44 and is inserted into the second baffle plate 46 and riveted.

[0059] A second gap groove 45 is arranged between the second baffle plate 46 and the cross cover plate 42.

[0060] The rivet 41 includes a cap 411 and a cross rivet rod 412, the cross rivet rod 412 penetrates the cross cover plate 42, the first baffle plate 44 and the second baffle plate 46 in sequence, both ends of the cross rivet rod 412 are provided with a cap 411, and the cap 411 is fixed with the cross rivet rod 412.

[0061] In one specific embodiment of the present embodiment, a large-size honeycomb VOCs catalyst structure is used, which also includes a sealing gasket. The outer cladding layer 21 and the frame body 22 of the outer frame 2 are made of iron-chromium-aluminum or stainless steel, the inner container 1 is made of iron-chromium-aluminum metal carrier or cordierite ceramic carrier, the inner container 1 is separated by the cross partition frame 4 and isolated by the sealing gasket, and the inner container 1 and the outer frame 2 are also isolated by the sealing gasket. Cross cover plates 42 are arranged on the catalyst inlet and outlet surfaces to limit the position.

[0062] The material of the outer frame body 2 is iron-chromium-aluminum or stainless steel, which is a cuboid frame structure, with a length ranging from 500 mm to 1000 mm, a width ranging from 50 mm to 100 mm, and an edge of the outer frame body 2 being inwardly rolled with a width of 10 mm to 20 mm for fixing the inner container;

[0063] The sealing gasket is made of ceramic fiber and vermiculite, which is a rectangular block structure, with a length ranging from 50 mm to 1000 mm, a width ranging from 50 mm to 1000 mm, and a thickness of 2 mm to 10 mm, for fixing the inner container, reducing shock and lowering the stress of deformation of the inner container;

[0064] The cross partition frame 4 is made of iron-chromium-aluminum or stainless steel, with a length of 250 mm to 1000 mm, a width of 10 mm to 35 mm, and a thickness of 2 mm, for fixing the inner container 1 and guiding airflow, and the number of the cross partition frame 4 is several and can uniformly separate the surrounding space in the outer frame body 2 by the cross partition frame, and the connection mode between the cross partition frame 4 and the external metal shell is embedded welding, and the edge of the cross partition frame 4 embedded in the side plate 23 is welded with the side plate 23 to form a weld 6, so as to ensure that the position of the cross partition frame 4 is not deviated.

[0065] The inner container 1 is a catalyst prepared by a cordierite ceramic carrier or an iron-chromium-aluminum metal carrier, with a mesh number of 46 to 750 and a number of 4 to 36, a length ranging from 90 mm to 500 mm, and a height ranging from 50 mm to 100 mm; when the inner container 1 is a metal carrier, the inner container 1 adopts an edge covering structure design, and when the inner container 1 is a cordierite ceramic, the inner container 1 adopts an integral structure design.

[0066] The above specific embodiments further illustrate the purpose, technical scheme and beneficial effects of the present application, and it should be understood that the above description is only a specific embodiment of the present application and is not used to limit the protection scope of the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A honeycomb VOCs catalyst structure comprising an outer frame (2) in which a plurality of inner containers (1) are arranged, characterized in that, The outer frame (2) is further provided with a plurality of cross partition racks (4), which divide the surrounding space of the outer frame (2) into a plurality of independent loading spaces, and each loading space is provided with the inner container (1); The end of the cross partition rack (4) is embedded in the outer frame (2) and fixed with the outer frame (2); The cross partition rack (4) comprises a first baffle assembly and a second baffle assembly, and the second baffle assembly is perpendicular to and passes through the first baffle assembly; A cross cover plate (42) is arranged above the first baffle assembly and the second baffle assembly, which can completely cover the top surface of the first baffle assembly and the second baffle assembly, and the cross cover plate (42) is riveted with the first baffle assembly and the second baffle assembly.

2. A honeycomb VOCs catalyst structure according to claim 1, wherein, The outer frame (2) comprises a frame body (22), and an outer cladding layer (21) is wrapped outside the frame body (22), and a plurality of side plates (23) are arranged in the frame body (22), which enclose the surrounding space; An embedded groove (3) is arranged on the side plate (23), which vertically penetrates the side plate (23), and the cross partition rack (4) is embedded in the embedded groove (3).

3. A honeycomb VOCs catalyst structure according to either of claims 1 or 2, characterized in that, The outer frame (2) has a plurality of top corners, and a gap corner (5) is arranged at the top corner, which can be deformed by extrusion.

4. A honeycomb VOCs catalyst structure according to claim 3, wherein, The gap corner (5) comprises an arc-shaped end head (51), which is fixed with the outer frame (2), and the side surface of the outer frame (2) has a connecting gap (52) at the arc-shaped end head (51), which can accommodate the thermal deformation of the inner container (1) and the thermal deformation of the outer frame (2).

5. The honeycomb VOCs catalyst structure according to claim 1, wherein, The first baffle assembly comprises a first baffle (44), and the second baffle assembly passes through the first baffle (44); A first gap groove (43) is arranged between the first baffle (44) and the cross cover plate (42).

6. A honeycomb VOCs catalyst structure according to claim 5, wherein, The second baffle assembly comprises a second baffle (46), which passes through the first baffle (44), and the cross cover plate (42) is provided with a rivet (41), which penetrates the cross cover plate (42) and the first baffle (44) and is inserted into the second baffle (46) and riveted; A second gap groove (45) is arranged between the second baffle (46) and the cross cover plate (42).

7. A honeycomb VOCs catalyst structure according to claim 6, wherein, The rivet (41) comprises a rivet cap (411) and a cross rivet rod (412), the cross rivet rod (412) penetrates the cross cover plate (42), the first baffle (44) and the second baffle (46) in sequence, both ends of the cross rivet rod (412) are provided with a rivet cap (411), and the rivet cap (411) is fixed with the cross rivet rod (412).

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