Waste gas treatment catalyst chamber
By setting up a seal at the bottom of the catalyst and pressing the catalyst with a pressing device, the problem of exhaust gas leakage caused by the gap between the catalyst and the installation box is solved, and the purification effect of exhaust gas treatment is improved.
Patent Information
- Application Number
- CN202421752156.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-24
AI Technical Summary
In the existing exhaust gas treatment catalyst chamber, there is a gap between the catalyst and the installation box, which leads to exhaust gas leakage and affects the purification effect.
A gasket is provided at the bottom of the catalyst and the catalyst is pressed against the gasket by a pressing device. The gasket can be pressed against the bottom of the catalyst to avoid a gap between the catalyst and the bracket.
The gap between the catalyst and the bracket is effectively avoided, and the exhaust gas leakage is prevented, and the purification effect of exhaust gas treatment is improved.
Smart Images
Figure CN222900712U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of waste gas treatment, in particular to a waste gas treatment catalytic chamber. Background Art
[0002] A waste gas treatment catalytic chamber is a commonly used waste gas treatment device, mainly used to convert harmful gases in waste gas into harmless substances or reduce the concentration of harmful substances through catalytic reactions, so as to purify the environment and protect human health. The waste gas passes through the catalytic chamber, contacts the catalyst, and through catalytic action, the harmful gas is converted into harmless substances or the concentration is reduced, and then the treated waste gas is discharged into the atmosphere through the outlet. Currently, the commonly used catalyst is a block with a honeycomb structure inside. When installed, a bracket is welded in the catalytic chamber, and an installation box with a hollow bottom is arranged on the bracket in cooperation with the block. A circumferential support edge is arranged on the outer edge of the bottom of the installation box. The block is placed in the installation box to maintain the stability of the block catalyst during use. However, the size of the installation box needs to be slightly larger than that of the block catalyst to ensure smooth placement. Therefore, there will be a gap between the catalyst and the surrounding of the installation box after the catalyst is placed. The waste gas passes through the catalyst from top to bottom, and the waste gas will enter through the gap between the catalyst and the installation box. It is also difficult to ensure that the support edge at the bottom of the installation box is fully attached to the entire bottom surface of the catalyst. Therefore, there is also a gap between the bottom of the catalyst and the support edge, and the waste gas will be discharged through the gap between the bottom of the catalyst and the installation box, affecting the waste gas purification effect. Summary of the Utility Model
[0003] The purpose of the utility model is to avoid the deficiencies of the prior art and provide a waste gas treatment catalytic chamber, thereby effectively solving the deficiencies existing in the prior art.
[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a waste gas treatment catalytic chamber, including intake ducts on both sides and a catalytic chamber in the middle. The intake ducts are communicated with the upper side of the catalytic chamber. Heating tubes are arranged on the upper sides of both the intake ducts and the catalytic chamber. A bracket is arranged in the catalytic chamber, and an installation box is arranged on the bracket. A block-shaped catalyst is arranged in the installation box. A circumferential support edge is arranged at the bottom of the installation box, and a sealing gasket is arranged on the support edge. A pressing device for pressing the catalyst onto the sealing gasket is arranged on the installation box.
[0005] Further, the pressing device includes a pressing ring arranged on the upper side of the catalyst. The outer edge of the pressing ring protrudes beyond the outer circumference of the catalyst. The height of the catalyst is higher than that of the installation box. The pressing ring is connected to the installation box through a locking mechanism.
[0006] Further, a fixing edge is arranged on the upper side of the installation box. The locking mechanism includes a plurality of swing rods hinged on the fixing edge. A clamping plate that can be stuck on the pressing ring is arranged on the swing rod. The bottom surface of the front end of the clamping plate is an inclined surface.
[0007] Further, the card board is movably arranged up and down on the swing rod, and a positioning member is arranged on the swing rod to cooperate with the card board.
[0008] Further, a thread is arranged on the swing rod, and the positioning members are two nuts arranged on the upper and lower sides of the card board.
[0009] Further, an asbestos rope is arranged between the side surface of the catalyst and the installation box.
[0010] The above technical solution of the present utility model has the following beneficial effects: A sealing gasket is arranged at the bottom of the catalyst in the present utility model, and the catalyst is pressed on the sealing gasket through a pressing device. The sealing gasket can abut against the bottom of the catalyst, avoiding the leakage of waste gas due to the gap between the catalyst and the supporting edge, thereby improving the waste gas treatment effect. Description of the Drawings
[0011] Figure 1 is a cross-sectional schematic diagram of an embodiment of the present utility model;
[0012] Figure 2 is Figure 1 an enlarged view of part A in Detailed Embodiments
[0013] The following describes the preferred embodiments of the present utility model in detail in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.
[0014] In the description of the present utility model, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present utility model. In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0015] Such as Figure 1-2As shown, an exhaust gas treatment catalytic chamber of the present embodiment comprises an air inlet duct 1 on both sides and a catalytic bin 2 in the middle, the air inlet duct 1 is communicated with the upper side of the catalytic bin 2, a heating tube 3 is arranged on the upper side of the air inlet duct 1 and the upper side of the catalytic bin 2, a bracket 4 is arranged in the catalytic bin 2, a mounting box 5 is arranged on the bracket 4, a block catalyst 6 is arranged in the mounting box 5, a supporting edge 7 around the bottom of the mounting box 5 is arranged, a sealing gasket 8 is arranged on the supporting edge 7, and a pressing device for pressing the catalyst 6 on the sealing gasket 8 is arranged on the mounting box 5; the exhaust gas enters from the air inlet duct 1 on both sides, is heated by the heating tube 3 on the upper side of the air inlet duct 1 and the upper side of the catalytic bin 2, and after heating, the exhaust gas passes downward from the upper side of the catalyst 6, the pressing device presses the catalyst 6 on the sealing gasket 8 on the supporting edge 7, and the sealing gasket 8 can be against the bottom of the catalyst 6 to avoid the gap between the catalyst 6 and the supporting edge 7 and the leakage of the exhaust gas being directly discharged, thereby improving the exhaust gas treatment effect;
[0016] Preferably, the pressing device includes a pressing ring 9 arranged on the upper side of the catalyst 6, the outer edge of the pressing ring 9 protrudes from the outer periphery of the catalyst 6, the height of the catalyst 6 is higher than the height of the installation box 5, and the pressing ring 9 is connected to the installation box 5 through a locking mechanism; when installing, the catalyst 6 is first placed in the installation box 5, and then the pressing ring 9 is pressed on the catalyst 6, and the pressing ring 9 is connected to the installation box 5 through the locking mechanism, so that the catalyst 6 is pressed on the sealing gasket 8;
[0017] Preferably, a fixed edge 10 is provided on the upper side of the installation box 5, and the locking mechanism includes a plurality of swing rods 11 hingedly provided on the fixed edge 10, and a clamping plate 12 which can be clamped on the pressure ring 9 is provided on the swing rod 11, and the front end bottom surface of the clamping plate 12 is an inclined surface. After the pressure ring 9 is pressed on the catalyst 6, the pressure ring 9 is pressed down so that the catalyst 6 is pressed against the sealing gasket 8, and then the swing rod 11 is rotated so that the clamping plate 12 is clamped on the pressure ring 9, thereby fixing the pressure ring 9;
[0018] Preferably, the card plate 12 is movably arranged on the swing rod 11, and a positioning member 13 is arranged on the swing rod 11 to cooperate with the card plate 12; for catalysts 6 of different thicknesses, the position of the card plate 12 on the swing rod 11 can be adjusted to cooperate;
[0019] Preferably, the swing rod 11 is provided with threads, and the positioning member 13 is two nuts provided on the upper and lower sides of the clamping plate 12; the position of the clamping plate 12 can be changed by rotating the two nuts;
[0020] Preferably, an asbestos rope 14 is arranged between the side of the catalyst 6 and the installation box 5; the asbestos rope 14 is soaked with the liquid catalyst 6. During installation, the catalyst 6 can be placed in the installation box 5 first, and then the asbestos rope 14 is used to fill the gap between the catalyst 6 and the installation box 5 from the upper side, which can reduce the exhaust gas from entering the gap and further avoid the exhaust gas from leaking between the catalyst 6 and the supporting edge 7.
[0021] The embodiments of the present utility model are given for purposes of illustration and description, and are not exhaustive or limit the present utility model to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to better explain the principles of the present utility model and its practical applications, and to enable those of ordinary skill in the art to understand the present utility model and design various embodiments with various modifications suitable for specific purposes.
Claims
1. An exhaust gas treatment catalytic chamber, comprising air inlets on both sides and a catalytic chamber in the middle, wherein the air inlets are connected to the upper side of the catalytic chamber, the upper sides of the air inlets and the catalytic chamber are both provided with heating pipes, a bracket is provided in the catalytic chamber, a mounting box is provided on the bracket, a block catalyst is provided in the mounting box, and a supporting edge is provided around the bottom of the mounting box, characterized in that: A sealing gasket is arranged on the supporting edge, and a pressing device for pressing the catalyst onto the sealing gasket is arranged on the installation box.
2. The exhaust gas treatment catalytic chamber according to claim 1, characterized in that: The clamping device comprises a pressure ring arranged on the upper side of the catalyst, the outer edge of the pressure ring protrudes out of the outer circumference of the catalyst, the height of the catalyst is higher than the height of the installation box, and the pressure ring is connected to the installation box through a locking mechanism.
3. The exhaust gas treatment catalytic chamber according to claim 2, characterized in that: A fixed edge is arranged on the upper side of the installation box, and the locking mechanism comprises a plurality of swing rods hingedly arranged on the fixed edge. A clamping plate which can be clamped on the pressure ring is arranged on the swing rod, and the bottom surface of the front end of the clamping plate is an inclined surface.
4. The exhaust gas treatment catalytic chamber according to claim 3, characterized in that: The clamping plate is movably arranged on the swing rod, and a positioning piece is arranged on the swing rod to cooperate with the clamping plate.
5. The exhaust gas treatment catalytic chamber according to claim 4, characterized in that: The swing rod is provided with a thread, and the positioning member is two nuts arranged on the upper and lower sides of the clamping plate.
6. The exhaust gas treatment catalytic chamber according to claim 1, characterized in that: Asbestos rope is arranged between the side surface of the catalyst and the installation box.