VOCS waste gas heat storage oxidation equipment

Abstract

The utility model discloses VOCS waste gas heat storage oxidation equipment which comprises a treatment box, a U-shaped gas pipe is fixedly connected to the side wall of the treatment box, filter screens are arranged in the side walls of the two ends of the U-shaped gas pipe, fixing devices are arranged on the side walls of the two filter screens, a gas inlet pipe is fixedly connected to the side wall of the U-shaped gas pipe, and a gas outlet pipe is fixedly connected to the side wall of the gas inlet pipe. Two heat conduction boxes are fixedly connected to the side wall of the top in the treatment box, preheating chambers are arranged in the two heat conduction boxes, the U-shaped air pipe is communicated with the two preheating chambers respectively, air inlets are formed in the side walls of the bottoms of the two heat conduction boxes, and the two exhaust ports are communicated with the corresponding air inlets respectively. Through mutual cooperation of the inclined plate, the L-shaped heat conduction plate, the heat conduction box, the filter screen and other components, high-temperature gas generated after combustion can be utilized, so that the heat conduction box achieves the effect of preheating waste gas, waste of a large amount of heat energy is avoided, and convenience, rapidness and high practicability are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a VOCS waste gas thermal storage oxidation device. Background Art

[0002] VOCS waste gas treatment technologies include direct condensation, combustion (including thermal storage catalytic combustion and direct combustion) and adsorption-desorption-condensation recovery. These methods have their own advantages and disadvantages. At present, direct combustion and direct condensation are mainly used in high-concentration VOCS environments, and are particularly suitable for gas components whose condensation temperature is close to room temperature.

[0003] For example, Chinese patent publication number CN219588965U discloses an RTO device with waste gas treatment function, including a water tank, a filter box fixedly connected to the top of the water tank, a stuffing box slidably connected to the inside of the filter box, a limited mechanism fixedly connected to one side of the filter box, and a regenerative thermal oxidizer fixedly connected to one side of the filter box. In the RTO device with waste gas treatment function, waste gas enters the inside of the water tank through the air inlet pipe, so that the particles inside the waste gas are precipitated inside the water tank, and then the waste gas enters the inside of the filter box through the air outlet pipe, and the waste gas is further filtered. Finally, the waste gas enters the inside of the regenerative thermal oxidizer through the exhaust pipe and the connecting pipe, which has the advantages of filtering particulate matter in the waste.

[0004] However, in the above scheme, when the exhaust gas is burned and oxidized, it is not convenient to utilize the high-temperature gas after combustion, which leads to a large amount of heat energy waste and low practicality. Utility Model Content

[0005] The utility model provides a VOCS waste gas thermal storage oxidation device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A VOCS waste gas thermal storage oxidation device comprises a treatment box, a U-shaped air pipe is fixedly connected to the side wall of the treatment box, a filter screen is arranged in the side walls at both ends of the U-shaped air pipe, and the two side walls of the filter screen are provided with a fixing device, an air inlet pipe is fixedly connected to the side wall of the U-shaped air pipe, two heat conduction boxes are fixedly connected to the top side wall of the treatment box, a preheating chamber is arranged in the two heat conduction boxes, the U-shaped air pipe is respectively connected to the two preheating chambers, an air inlet is opened on the bottom side wall of the two heat conduction boxes, an exhaust port is opened on the side wall of the two heat conduction boxes, the two exhaust ports are respectively connected to the corresponding air inlet, and the bottom of the two heat conduction boxes is fixedly connected There is an L-shaped heat conducting plate, and two exhaust pipes are fixedly connected to the side wall of the processing box, and the two exhaust pipes are respectively connected to the corresponding exhaust ports. A combustion chamber is arranged on the bottom side wall of the processing box, and the bottom side walls of the two heat conducting boxes are fixedly connected with air guide pipes, and the two air guide pipes are respectively connected to the two preheating chambers, and the bottoms of the two air guide pipes are connected to the combustion chamber, and the bottom side walls of the two heat conducting boxes are fixedly connected with vertical plates, and the bottoms of the two vertical plates are fixedly connected to the top side wall of the combustion chamber, and air outlet nozzles are arranged on the side walls at both ends of the combustion chamber, and two guide fans are arranged on the inner side wall of the processing box, and the two guide fans are respectively located on one side of the two vertical plates.

[0008] As a further improvement of the present technical solution: the two fixing devices each include an arc-shaped plate, the two arc-shaped plates are respectively fixedly connected to the side walls of the two filter screens, the two side walls of the two arc-shaped plates are fixedly connected with a first fixing plate, the side walls of the U-shaped air pipe are fixedly connected with four second fixing plates, the four second fixing plates are respectively located beside the side walls of the first fixing plate, and every two of the first fixing plates are fixedly connected to the second fixing plates by bolts.

[0009] As a further improvement of the technical solution: rubber pads are provided on the side walls of the two arc-shaped plates.

[0010] As a further improvement of the technical solution: the two L-shaped heat conducting plates and the two heat conducting boxes are both made of metal materials.

[0011] As a further improvement of the technical solution: an inclined plate is fixedly connected to the inner side walls of the two heat conduction boxes, and an L-shaped baffle is fixedly connected to the side walls of the two L-shaped heat conduction plates.

[0012] As a further improvement of the technical solution: a valve is provided on the side wall of the air intake pipe.

[0013] Compared with the prior art, the beneficial effect of the utility model is that the device can utilize the high-temperature gas after combustion through the mutual cooperation of the inclined plate, L-shaped heat conduction plate, heat conduction box, filter screen and other components, so that the heat conduction box can achieve the effect of preheating the exhaust gas, thereby avoiding the waste of a large amount of heat energy. It is convenient, fast and highly practical.

[0014] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 This is a schematic diagram of the front cross-sectional structure of a VOCS exhaust gas thermal storage oxidation device proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the top view of a VOCS exhaust gas thermal storage oxidation device proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of a top view cross-sectional structure of a U-shaped air pipe in a VOCS exhaust gas thermal storage oxidation device proposed by the utility model;

[0019] Figure 4 The utility model provides a schematic diagram of the front cross-sectional structure of a filter screen in a VOCS exhaust gas thermal storage oxidation device.

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] 1. Processing box; 2. Inclined plate; 3. Exhaust pipe; 4. Exhaust port; 5. Air inlet; 6. Vertical plate; 7. Air duct; 8. Fan; 9. Air outlet nozzle; 10. Combustion chamber; 11. L-shaped heat transfer plate; 12. L-shaped baffle; 13. Preheating chamber; 14. U-shaped air duct; 15. Heat transfer box; 16. Air inlet pipe; 17. Valve; 18. First fixed plate; 19. Filter; 20. Bolts; 21. Arc plate; 22. Second fixed plate. DETAILED DESCRIPTION

[0022] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0023] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0025] See also Figure 1-4In the embodiment of the utility model, a VOCS waste gas thermal storage oxidation device includes a treatment box 1, a U-shaped air pipe 14 is fixedly connected to the side wall of the treatment box 1, and filter screens 19 are arranged in the side walls at both ends of the U-shaped air pipe 14, and the side walls of the two filter screens 19 are provided with fixing devices, and the side wall of the U-shaped air pipe 14 is fixedly connected to the air intake pipe 16, and two heat conduction boxes 15 are fixedly connected to the top side wall of the treatment box 1, and preheating chambers 13 are arranged in the two heat conduction boxes 15, and the U-shaped air pipe 14 is respectively connected to the two preheating chambers 13, and the two heat conduction boxes 15 are provided with air inlets 5 on the bottom side walls, and the two heat conduction boxes 15 are provided with exhaust ports 4 on the side walls, and the two exhaust ports 4 are respectively connected to the corresponding air inlets 5, and the two heat conduction boxes 15 are provided with exhaust ports 4. An L-shaped heat conducting plate 11 is fixedly connected to the inner bottom, two exhaust pipes 3 are fixedly connected to the side wall of the processing box 1, and the two exhaust pipes 3 are respectively connected to the corresponding exhaust ports 4. A combustion chamber 10 is provided on the side wall of the inner bottom of the processing box 1, and air guide pipes 7 are fixedly connected to the bottom side walls of the two heat conducting boxes 15, and the two air guide pipes 7 are respectively connected to the two preheating chambers 13, and the bottoms of the two air guide pipes 7 are connected to the combustion chamber 10, and vertical plates 6 are fixedly connected to the bottom side walls of the two heat conducting boxes 15, and the bottoms of the two vertical plates 6 are fixedly connected to the top side walls of the combustion chamber 10, and air outlet nozzles 9 are provided on the side walls at both ends of the combustion chamber 10, and two guide fans 8 are provided on the inner side wall of the processing box 1, and the two guide fans 8 are respectively located on one side of the two vertical plates 6.

[0026] See also Figure 2-4 , the two fixing devices both include an arc-shaped plate 21, and the two arc-shaped plates 21 are respectively fixedly connected to the side walls of the two filter screens 19, and the first fixing plates 18 are fixedly connected to the two side walls of the two arc-shaped plates 21, and four second fixing plates 22 are fixedly connected to the side walls of the U-shaped air pipe 14, and the four second fixing plates 22 are respectively located beside the side walls of the first fixing plate 18, and each two first fixing plates 18 and the second fixing plates 22 are fixedly connected by bolts 20. When it is necessary to disassemble and clean the filter screen 19, the two bolts 20 on the side walls of the arc-shaped plate 21 can be unscrewed, and then the arc-shaped plate 21 can be pulled out. The arc-shaped plate 21 drives the filter screen 19 to move, so that the filter screen 19 can be taken out and cleaned. When it is necessary to fix the filter screen 19, the filter screen 19 can be inserted into the U-shaped air pipe 14, and then the first fixing plate 18 and the second fixing plate 22 can be fixed with bolts 20.

[0027] See also Figure 2-4 Rubber pads are provided on the side walls of the two arc-shaped plates 21 to increase the sealing between the arc-shaped plates 21 and the U-shaped air pipe 14 to avoid air leakage.

[0028] See also Figure 1 The two L-shaped heat conducting plates 11 and the two heat conducting boxes 15 are both made of metal materials. The metal materials have better thermal conductivity and are convenient for fully utilizing the heat energy.

[0029] See also Figure 1 The inner walls of the two heat conduction boxes 15 are fixedly connected with inclined plates 2, and the side walls of the two L-shaped heat conduction plates 11 are fixedly connected with L-shaped baffles 12, which prolong the residence time of the exhaust gas in the preheating chamber 13 and facilitate sufficient preheating of the exhaust gas.

[0030] See also Figure 2-3 A valve 17 is provided on the side wall of the air inlet pipe 16. When the filter screen 19 is disassembled and cleaned, the flow of exhaust gas can be stopped by closing the valve 17.

[0031] The working principle of the utility model is as follows: when the exhaust gas is burned and oxidized, it first enters the U-shaped air pipe 14 through the air inlet pipe 16, and enters the two preheating chambers 13 through the two ends of the U-shaped air pipe 14 respectively, and then the exhaust gas passes through the side wall of the inclined plate 2 and the side wall of the L-shaped baffle 12, and finally flows into the air guide pipe 7 through the inclined plate 2 and the L-shaped baffle 12, and enters the combustion chamber 10 through the air guide pipe 7 for combustion and oxidation treatment, and is discharged through the air outlet nozzle 9 after the exhaust gas is burned and oxidized. The discharged high-temperature gas will quickly move toward the heat conduction box 15 under the action of the conduction fan 8, and then flow to the exhaust pipe 3 through the air inlet 5 at the bottom of the heat conduction box 15 and the exhaust port 4 on the side wall. When the high-temperature gas passes through the heat conduction box 15 and the side wall of the L-shaped heat conduction plate 11, the heat conduction box 15 and the L-shaped heat conduction plate 11 will be heated, so that the preheating chamber 13 becomes a high-temperature chamber, thereby preheating the exhaust gas in the preheating chamber 13, thereby utilizing the heat energy, and the gas is finally discharged through the exhaust pipe 3.

[0032] When the filter 19 needs to be disassembled and cleaned, the two bolts 20 on the side wall of the arc plate 21 can be unscrewed, and then the arc plate 21 can be pulled out. The arc plate 21 drives the filter 19 to move, so that the filter 19 can be taken out and cleaned. When the filter 19 needs to be fixed, the filter 19 can be inserted into the U-shaped air pipe 14, and then the first fixing plate 18 and the second fixing plate 22 can be fixed with bolts 20.

[0033] The above description is only a preferred embodiment of the utility model and does not impose any form of limitation on the utility model. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A VOCS waste gas thermal storage oxidation device, comprising a treatment box (1), characterized in that: A U-shaped air pipe (14) is fixedly connected to the side wall of the processing box (1), and filter screens (19) are provided in the side walls at both ends of the U-shaped air pipe (14). The side walls of the two filter screens (19) are provided with fixing devices. An air inlet pipe (16) is fixedly connected to the side wall of the U-shaped air pipe (14). Two heat conduction boxes (15) are fixedly connected to the top side wall of the processing box (1). The two heat conduction boxes (15) are provided with preheating chambers (13). The U-shaped air pipe (14) is respectively connected to the two preheating chambers (13). An air inlet (5) is provided on the bottom side wall of the two heat conduction boxes (15). An exhaust port (4) is provided on the side wall of the two heat conduction boxes (15). The two exhaust ports (4) are respectively connected to the corresponding air inlet ports (5). An L-shaped heat conduction plate (11) is fixedly connected to the bottom of the two heat conduction boxes (15). Two exhaust pipes (3) are fixedly connected to the side wall of the processing box (1), and the two exhaust pipes (3) are respectively connected to the corresponding exhaust ports (4). A combustion chamber (10) is provided on the inner bottom side wall of the processing box (1). The bottom side walls of the two heat conduction boxes (15) are fixedly connected to air guide pipes (7), and the two air guide pipes (7) are respectively connected to the two preheating chambers (13). The bottoms of the two air guide pipes (7) are connected to the combustion chamber (10). The bottom side walls of the two heat conduction boxes (15) are fixedly connected to vertical plates (6), and the bottoms of the two vertical plates (6) are fixedly connected to the top side wall of the combustion chamber (10). The side walls at both ends of the combustion chamber (10) are provided with air outlet nozzles (9). Two guide fans (8) are provided on the inner side wall of the processing box (1), and the two guide fans (8) are respectively located on one side of the two vertical plates (6).

2. A VOCS waste gas thermal storage oxidation device according to claim 1, characterized in that: The two fixing devices each comprise an arc-shaped plate (21), the two arc-shaped plates (21) are respectively fixedly connected to the side walls of the two filter screens (19), the two side walls of the two arc-shaped plates (21) are both fixedly connected to a first fixing plate (18), the side walls of the U-shaped air pipe (14) are fixedly connected to four second fixing plates (22), the four second fixing plates (22) are respectively located beside the side walls of the first fixing plate (18), and every two of the first fixing plates (18) and the second fixing plates (22) are fixedly connected via bolts (20).

3. A VOCS waste gas thermal storage oxidation device according to claim 2, characterized in that: Rubber pads are provided on the side walls of the two arc-shaped plates (21).

4. The VOCS waste gas thermal storage oxidation equipment according to claim 1, characterized in that: The two L-shaped heat conducting plates (11) and the two heat conducting boxes (15) are both made of metal material.

5. The VOCS waste gas thermal storage oxidation equipment according to claim 1, characterized in that: The inner side walls of the two heat conduction boxes (15) are both fixedly connected with an inclined plate (2), and the side walls of the two L-shaped heat conduction plates (11) are both fixedly connected with an L-shaped baffle plate (12).

6. The VOCS exhaust gas thermal storage oxidation equipment according to claim 1, characterized in that: A valve (17) is provided on the side wall of the air inlet pipe (16).

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