A waste gas catalytic combustion treatment device with a recovery component

Abstract

This utility model provides a waste gas catalytic combustion treatment device with a recovery component, relating to the field of combustion treatment technology. It includes a cylinder with connecting pipes fixed and connected at both ends near the center. An L-shaped annular tube is embedded inside one of the connecting pipes. A circular annular plate is fixedly connected to one end of the L-shaped annular tube. An inner filter element is fixedly connected to one side wall of the circular annular plate near its inner arc wall, and an outer filter element is fixedly connected to one side wall of the circular annular plate near its outer arc wall. Corrosion-resistant heat-permeable tubes are evenly spaced inside the cylinder near its edge. Both ends of each corrosion-resistant heat-permeable tube penetrate the inner walls of both ends of the cylinder and are fixedly connected thereto. Arc tubes are located at the ends of adjacent corrosion-resistant heat-permeable tubes. In this utility model, the connection structure formed by the connecting pipes, mounting annular plate, and mounting block, combined with the annular groove adaptation design, allows for quick extraction and disassembly of the L-shaped annular tube and filter element, eliminating the need for large-scale equipment disassembly and simplifying the maintenance process.

Description

Technical Field

[0001] This utility model relates to the field of combustion treatment technology, and in particular to a waste gas catalytic combustion treatment device with a recovery component. Background Technology

[0002] With the acceleration of industrialization, industries such as chemicals, pharmaceuticals, printing, and coating have flourished, generating large amounts of waste gas containing volatile organic compounds (VOCs) during production. These VOCs not only have pungent odors, but some substances are also toxic and carcinogenic. Direct emission into the atmosphere can cause serious environmental pollution, such as photochemical smog and ozone layer depletion, and also harm human health, causing respiratory and cardiovascular diseases. To curb waste gas pollution and protect the ecological environment and human health, countries have introduced strict environmental regulations and emission standards, severely limiting VOC emissions from industrial waste gas. Against this backdrop, the development of efficient, energy-saving, and environmentally friendly waste gas treatment technologies and equipment has become an urgent need for enterprises to meet environmental requirements and achieve sustainable development. The catalytic combustion waste gas treatment device with recovery components has emerged precisely in this context.

[0003] Most waste gas treatment devices have simple structural designs, with high integration of filter components and main equipment. Replacement and maintenance require disassembly of a large number of structures, making operation cumbersome. Heat recovery components are mostly single heat exchangers with low recovery efficiency, making it difficult to adapt to different working conditions. Furthermore, the design for waste gas dispersion and flow guidance is insufficient, resulting in inadequate contact between waste gas and the treatment medium, which affects the purification effect and energy recovery efficiency. Utility Model Content

[0004] The purpose of this utility model is to solve the problems of existing waste gas treatment devices having simple structural design, high integration of filter components and main equipment, and cumbersome operation requiring disassembly of a large number of structures for replacement and maintenance. Therefore, this utility model proposes a waste gas catalytic combustion treatment device with a recovery component.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a waste gas catalytic combustion treatment device with a recovery component, comprising a cylinder, wherein both ends of the cylinder and near the center are fixed and connected to connecting pipes, wherein an L-shaped ring pipe is embedded inside one of the connecting pipes, one end of the L-shaped ring pipe is fixedly connected to a ring plate, an inner filter element is fixedly connected to one side wall of the ring plate near the inner arc wall, an outer filter element is fixedly connected to one side wall of the ring plate near the outer arc wall, and anti-corrosion heat-permeable pipes are provided at equal intervals inside the cylinder and near the edge, both ends of the anti-corrosion heat-permeable pipes penetrate the inner walls of both ends of the cylinder and are fixedly connected thereto, and arc pipes are provided at the ends of adjacent anti-corrosion heat-permeable pipes.

[0006] Preferably, one end of each of the connecting pipes is fixedly connected to a mounting ring plate, and the outer arc wall of the mounting ring plate is fixedly connected to mounting blocks at equal intervals, and the surface of each mounting block is provided with a round hole.

[0007] Preferably, one side wall of the mounting ring plate is provided with an annular groove, and the edge of the L-shaped ring tube is embedded in the annular groove and adapted to it.

[0008] Preferably, both ends of the corrosion-resistant heat-permeable pipe are fixedly connected to joints, one end of each joint is provided with an annular groove, the inside of each annular groove is embedded with an annular plate, one end of each annular plate is fixedly connected to an L-shaped annular plate, and one end of the L-shaped annular plate is fixedly connected to both ends of the arc pipe.

[0009] Preferably, the surface of the L-shaped ring plate is fitted with and rotatably connected to a hexagonal sleeve, and the surface of the joint is fitted with and threadedly connected to a threaded sleeve, with one end of each threaded sleeve being fixedly connected to an adjacent hexagonal sleeve.

[0010] Preferably, the pore size of the inner filter element is smaller than that of the outer filter element.

[0011] Preferably, the two ends of the corrosion-resistant heat-permeable pipe form a circulation path with the arc pipe.

[0012] Preferably, a conical block is fixedly connected to the other end of the inner filter element and the outer filter element.

[0013] Preferably, the outer arc wall of the L-shaped annular tube is in contact with the inner arc wall of the connecting tube.

[0014] Preferably, one end of each of the two L-shaped ring plates is fixed and connected to an inlet pipe and an outlet pipe, respectively.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. In this utility model, the connection structure consisting of the connecting pipe, the mounting ring plate, and the mounting block, combined with the annular groove adaptation design, can achieve the effect of quickly pulling out and disassembling the L-shaped ring pipe and the filter element without large-scale disassembly of the equipment, thus simplifying the maintenance process.

[0017] 2. In this utility model, by combining an inner filter element (small pore size) and an outer filter element (large pore size), large particulate impurities are first intercepted, and then fine pollutants are filtered to effectively purify the exhaust gas and protect the subsequent catalytic and heat exchange components.

[0018] 3. In this utility model, the conical block guides the dispersion of waste gas, and the circulation path formed by the anti-corrosion heat-permeable pipe and the arc pipe increases the contact area and time between waste gas and heat exchange medium and catalyst, promotes the full combustion and decomposition of VOCs, and improves heat recovery efficiency. Attached Figure Description

[0019] Figure 1 A three-dimensional view of the overall structure of a waste gas catalytic combustion treatment device with a recovery component is provided for this utility model.

[0020] Figure 2 A side view of the overall structure of a waste gas catalytic combustion treatment device with a recovery component is provided for this utility model.

[0021] Figure 3 A cross-sectional view of the overall structure of a waste gas catalytic combustion treatment device with a recovery component is provided for this utility model.

[0022] Figure 4 A vertical sectional view of the overall structure of a waste gas catalytic combustion treatment device with a recovery component is provided for this utility model.

[0023] Figure 5 This invention proposes a waste gas catalytic combustion treatment device with a recovery component. Figure 4 Enlarged view of the structure in area A.

[0024] Legend: 1. Cylinder; 2. Connecting pipe; 3. Mounting ring plate; 4. Mounting block; 5. L-shaped ring pipe; 6. Circular ring plate; 7. Inner filter element; 8. Outer filter element; 9. Conical block; 10. Corrosion-resistant heat-permeable pipe; 11. Joint; 12. Circular groove; 13. Circular insert; 14. L-shaped ring plate; 15. Threaded sleeve; 16. Hexagonal sleeve; 17. Arc pipe; 18. Liquid inlet pipe; 19. Liquid outlet pipe. Detailed Implementation

[0025] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0027] Example 1, as Figure 1-5As shown, this utility model provides a waste gas catalytic combustion treatment device with a recovery component, including a cylinder 1. Both ends of the cylinder 1 and near the center are fixed and connected to pipes 2. An L-shaped ring pipe 5 is embedded inside one of the pipes 2. A ring plate 6 is fixedly connected to one end of the L-shaped ring pipe 5. An inner filter element 7 is fixedly connected to one side wall of the ring plate 6 near the inner arc wall. An outer filter element 8 is fixedly connected to one side wall of the ring plate 6 near the outer arc wall. Corrosion-resistant heat-permeable pipes 10 are provided at equal intervals inside the cylinder 1 and near the edge. Both ends of the corrosion-resistant heat-permeable pipes 10 penetrate the inner walls of both ends of the cylinder 1 and are fixedly connected to them. Arc pipes 17 are provided at both ends of adjacent corrosion-resistant heat-permeable pipes 10.

[0028] The overall effect of embodiment 1 is that pipes 2 are fixed and connected to both ends of the cylinder 1 near the center. An L-shaped ring pipe 5 is embedded inside one of the pipes 2. A circular ring plate 6 is fixedly connected to one end of the L-shaped ring pipe 5. An inner filter element 7 is fixedly connected to one side wall of the circular ring plate 6 near the inner arc wall, and an outer filter element 8 is fixedly connected to one side wall of the circular ring plate 6 near the outer arc wall. This allows the L-shaped ring pipe 5 to be embedded from one of the pipes 2, and the inner filter element 7 and the outer filter element 8 to be installed inside the cylinder 1. Corrosion-resistant heat-permeable pipes 10 are provided at equal intervals inside the cylinder 1 near the edge. Both ends of the corrosion-resistant heat-permeable pipes 10 penetrate the inner walls of both ends of the cylinder 1 and are fixedly connected to them. An arc pipe 17 is provided at both ends of the adjacent corrosion-resistant heat-permeable pipes 10. This allows the heat recovery medium to circulate through the corrosion-resistant heat-permeable pipes 10 and the arc pipes 17 to recover the heat from the waste gas.

[0029] Example 2, as Figure 1-5 As shown, each end of the connecting pipe 2 is fixedly connected to a mounting ring plate 3. Mounting blocks 4 are fixedly connected at equal intervals to the outer arc wall of the mounting ring plate 3, and each mounting block 4 has a round hole on its surface. An annular groove is formed on one side wall of the mounting ring plate 3, and the edge of the L-shaped ring pipe 5 is embedded in and fitted into the annular groove. Both ends of the corrosion-resistant heat-transmitting pipe 10 are fixedly connected to joints 11. An annular groove 12 is formed at one end of each joint 11, and an annular plate 13 is embedded inside the annular groove 12. One end of each annular plate 13 is fixedly connected to an L-shaped ring plate 14, and one end of the L-shaped ring plate 14 is connected to both ends of the arc pipe 17. Fixed connection; hexagonal sleeves 16 are fitted and rotatably connected to the surface of the L-shaped ring plate 14, and threaded sleeves 15 are fitted and threadedly connected to the surface of the connector 11. One end of the threaded sleeve 15 is fixedly connected to the adjacent hexagonal sleeve 16; the surface aperture of the inner filter element 7 is smaller than the surface aperture of the outer filter element 8; the two ends of the anti-corrosion heat-transmitting pipe 10 form a circulation path with the arc pipe 17; the other ends of the inner filter element 7 and the outer filter element 8 are fixedly connected to the conical block 9; the outer arc wall of the L-shaped ring pipe 5 is in contact with the inner arc wall of the connecting pipe 2; one end of each of the two L-shaped ring plates 14 is fixed and connected to the inlet pipe 18 and the outlet pipe 19 respectively.

[0030] The overall effect of embodiment 2 is as follows: One end of the connecting pipe 2 is fixedly connected to an installation ring plate 3; the outer arc wall of the installation ring plate 3 is fixedly connected to installation blocks 4 at equal intervals; the surface of each installation block 4 has a round hole, which can serve as an installation of the outer pipe; one side wall of the installation ring plate 3 has an annular groove, and the edge of the L-shaped ring pipe 5 is embedded in and adapted to the annular groove, which can serve as an insertion of the edge of the L-shaped ring pipe 5 into the annular groove; both ends of the anti-corrosion heat-permeable pipe 10 are fixedly connected to a connector 11; one end of each connector 11 has an annular groove 12; an annular insert plate 13 is embedded inside the annular groove 12; one end of each annular insert plate 13 is fixedly connected to an L-shaped ring plate 14; one end of the L-shaped ring plate 14 is fixedly connected to both ends of the arc pipe 17, which can serve as an external connection of the anti-corrosion heat-permeable pipe 10 to the arc pipe 17; a hexagonal sleeve 16 is fitted and rotatably connected to the surface of the L-shaped ring plate 14; the surface of the connector 11 is fitted and rotatably connected to the hexagonal sleeve 16. The threaded connection includes a threaded sleeve 15, one end of which is fixedly connected to an adjacent hexagonal sleeve 16. This allows the hexagonal sleeve 16 to rotate, causing the threaded sleeve 15 to be screwed into the outer arc wall of the connector 11. The inner filter element 7 has a smaller surface aperture than the outer filter element 8, enabling multi-layer filtration of the exhaust gas. The corrosion-resistant heat-permeable pipe 10 forms a circulation path with the arc pipe 17 at both ends, allowing the liquid to circulate within the cylinder 1. A conical block 9 is fixedly connected to the other ends of the inner filter element 7 and the outer filter element 8, sealing one end of the inner filter element 7 and the outer filter element 8 and dispersing the exhaust gas. The outer arc wall of the L-shaped ring pipe 5 is attached to the inner arc wall of the connector 2, allowing the L-shaped ring pipe 5 to be embedded inside the connector 2 and attached to its inner wall. Two L-shaped ring plates 14 are fixed and connected at one end to an inlet pipe 18 and an outlet pipe 19, respectively, enabling liquid inlet and outlet.

[0031] Working principle: Exhaust gas enters the equipment through connector 2. The mounting ring plate 3 and mounting block 4 at one end of connector 2 are used to connect and fix the device to external systems such as exhaust gas conveying pipelines. Stable assembly is achieved through bolts fitting into the round holes on the surface of mounting block 4. After entering connector 2, the exhaust gas encounters the conical block 9, which guides the exhaust gas to disperse in all directions, preventing it from concentrating and impacting subsequent filtration and heat exchange components. This prepares for uniform exhaust gas treatment. The dispersed exhaust gas first contacts the outer filter element 8. The outer filter element 8 has relatively large pores, which can intercept large particles in the exhaust gas. Particulate matter and impurities, such as sawdust and large-diameter dust, are initially purified in the exhaust gas. The exhaust gas filtered by the outer filter element 8 continues to flow through the inner filter element 7. The inner filter element 7 has a smaller pore size, which further filters fine particles and aerosols, purifying the exhaust gas and preventing impurities from entering the subsequent catalytic and heat exchange stages, thus protecting the core components of the equipment. The corrosion-resistant heat-permeable pipe 10 is connected to the arc pipe 17 at both ends through the connector 11, the annular groove 12, the annular plate 13, and the L-shaped ring plate 14, forming a closed circulation channel through which a medium can flow. The heat generated during catalytic combustion is transferred to the internal heat-conducting medium through the corrosion-resistant heat-permeable pipe 10. The heat-conducting medium flows in the circulation path formed by the corrosion-resistant heat-permeable pipe 10 and the arc pipe 17, realizing heat transfer. Meanwhile, when the waste gas to be treated flows through the outer surface of the anti-corrosion heat-permeable pipe 10 and the arc pipe 17, it exchanges heat with the heat-conducting medium that carries heat, and the waste gas is preheated to achieve the purpose of energy saving (reducing the energy input required for subsequent catalytic combustion). The threaded sleeve 15 and the hexagonal sleeve 16 cooperate to fix the L-shaped ring plate 14 and the joint 11 through the threaded connection, ensuring the sealing of the circulation path, preventing the leakage of the heat-conducting medium, and ensuring the stable operation of the heat recovery and preheating functions.

[0032] The wiring diagrams of the inner filter element 7, outer filter element 8, and anti-corrosion heat-permeable tube 10 in this utility model are common knowledge in the field. Their working principle is a well-known technology. The appropriate model is selected according to actual use. Therefore, the control method and wiring arrangement of the inner filter element 7, outer filter element 8, and anti-corrosion heat-permeable tube 10 will not be explained in detail.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A waste gas catalytic combustion treatment device with a recovery component, comprising a cylinder (1), characterized in that: Both ends of the cylinder (1) are fixed and connected to pipes (2) near the center. An L-shaped ring pipe (5) is embedded inside one of the pipes (2). A circular ring plate (6) is fixedly connected to one end of the L-shaped ring pipe (5). An inner filter element (7) is fixedly connected to one side wall of the circular ring plate (6) near the inner arc wall. An outer filter element (8) is fixedly connected to one side wall of the circular ring plate (6) near the outer arc wall. Corrosion-resistant heat-permeable pipes (10) are provided at equal intervals inside the cylinder (1) near the edge. Both ends of the corrosion-resistant heat-permeable pipes (10) penetrate the inner walls of both ends of the cylinder (1) and are fixedly connected to them. An arc pipe (17) is provided at both ends of the adjacent corrosion-resistant heat-permeable pipes (10).

2. The exhaust gas catalytic combustion treatment device with a recovery assembly according to claim 1, characterized in that: One end of each of the connecting pipes (2) is fixedly connected to an installation ring plate (3), and the outer arc wall of the installation ring plate (3) is fixedly connected to an installation block (4) at equal intervals. The surface of each installation block (4) is provided with a round hole.

3. The exhaust gas catalytic combustion treatment device with a recovery assembly according to claim 2, characterized in that: The mounting ring plate (3) has an annular groove on one side wall, and the edge of the L-shaped ring tube (5) is embedded in the annular groove and adapted to it.

4. The exhaust gas catalytic combustion treatment device with a recovery assembly according to claim 1, characterized in that: Both ends of the anti-corrosion heat pipe (10) are fixedly connected to a joint (11). One end of the joint (11) is provided with an annular groove (12). An annular plate (13) is embedded inside the annular groove (12). One end of the annular plate (13) is fixedly connected to an L-shaped ring plate (14). One end of the L-shaped ring plate (14) is fixedly connected to both ends of the arc pipe (17).

5. The exhaust gas catalytic combustion treatment device with a recovery assembly according to claim 4, characterized in that: The surface of the L-shaped ring plate (14) is fitted with a hexagonal sleeve (16) and rotatably connected. The surface of the joint (11) is fitted with a threaded sleeve (15) and threadedly connected. One end of the threaded sleeve (15) is fixedly connected to the adjacent hexagonal sleeve (16).

6. The exhaust gas catalytic combustion treatment device with a recovery assembly according to claim 1, characterized in that: The pore size of the inner filter element (7) is smaller than that of the outer filter element (8).

7. The exhaust gas catalytic combustion treatment device with a recovery assembly according to claim 1, characterized in that: The two ends of the anti-corrosion heat-permeable pipe (10) form a circulation path with the arc pipe (17).

8. The exhaust gas catalytic combustion treatment device with a recovery assembly according to claim 1, characterized in that: The other end of the inner filter element (7) and the outer filter element (8) is fixedly connected to a conical block (9).

9. The exhaust gas catalytic combustion treatment device with a recovery assembly according to claim 1, characterized in that: The outer arc wall of the L-shaped ring pipe (5) is in contact with the inner arc wall of the connecting pipe (2).

10. The exhaust gas catalytic combustion treatment device with a recovery assembly according to claim 5, characterized in that: One end of each of the two L-shaped ring plates (14) is fixed and connected to an inlet pipe (18) and an outlet pipe (19).

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