Heat storage combustion type waste gas treatment equipment

Abstract

The utility model discloses heat storage combustion type waste gas treatment equipment, and relates to the technical field of waste gas treatment equipment. Comprising a treatment box, an initial heating bin, a first heating bin, a combustion bin and a second heating bin are arranged in the treatment box, the initial heating bin is located below the first heating bin, the combustion bin and the second heating bin, the first heating bin and the second heating bin are located on the two sides of the combustion bin, and a first connecting pipe fixedly communicates between the first heating bin and the combustion bin; and a second connecting pipe fixedly communicates between the combustion bin and the second heating bin. The first heat storage bricks and the second heat storage bricks are arranged to preheat and secondarily heat waste gas entering the combustion bin, and dependence on external energy sources (such as fuel) can be effectively reduced. After the heat in the waste gas is fully utilized, the fuel consumption can be reduced, so that the energy conservation is realized, and the temperature fluctuation of the equipment can be better controlled by recovering the heat of the waste gas and heating the waste gas entering the heat accumulator.

Description

Technical Field

[0001] This utility model relates to the technical field of waste gas treatment equipment, specifically a regenerative combustion waste gas treatment device. Background Technology

[0002] Regenerative thermal ignition (RTO) waste gas treatment equipment is widely used for treating industrial waste gases, especially those containing volatile organic compounds (VOCs) or other harmful gases. Its basic principle is to burn harmful substances at high temperatures while simultaneously storing heat using a ceramic regenerator, thereby improving energy efficiency and reducing fuel consumption. However, an existing RTO waste gas combustion treatment device (Announcement No.: CN220287469U) has the following drawbacks in use:

[0003] During use, the treated exhaust gas is directly discharged through the chimney, which makes it difficult to recover and utilize the heat in the exhaust gas, resulting in resource waste. To address this issue, this patent proposes a regenerative combustion exhaust gas treatment device. Utility Model Content

[0004] The purpose of this invention is to provide a regenerative combustion waste gas treatment device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a regenerative combustion waste gas treatment device, comprising a treatment box, wherein an initial heating chamber, a first heating chamber, a combustion chamber, and a second heating chamber are arranged inside the treatment box. The initial heating chamber is located below the first heating chamber, the combustion chamber, and the second heating chamber. The first heating chamber and the second heating chamber are located on both sides of the combustion chamber. A first connecting pipe is fixedly connected between the first heating chamber and the combustion chamber, and a second connecting pipe is fixedly connected between the combustion chamber and the second heating chamber. A connecting shell and a mounting shell are fixedly connected between the inner walls of the two sides of the initial heating chamber. The mounting shell is located inside the connecting shell. A spiral plate is fixedly connected between the connecting shell and the mounting shell. An air inlet main pipe is fixedly connected to the outer wall of the mounting shell. The air inlet main pipe passes through the connecting shell. Three air inlet branch pipes are fixedly connected to the top of the air inlet main pipe. The three air inlet branch pipes are respectively fixedly connected to the bottom ends of the first heating chamber, the combustion chamber, and the second heating chamber. An air outlet main pipe is fixedly connected to the outer wall of the connecting shell. Three air outlet branch pipes are fixedly connected to the top of the air outlet main pipe. The three air outlet branch pipes are respectively fixedly connected to the bottom ends of the first heating chamber, the combustion chamber, and the second heating chamber.

[0006] Preferably, the mounting shell is provided with a plurality of first heat storage bricks, and the first heating chamber, the combustion chamber and the second heating chamber are provided with a plurality of second heat storage bricks.

[0007] Preferably, the bottom end of the connecting shell is fixedly connected to a liquid outlet pipe, which penetrates the processing tank.

[0008] Preferably, a fan is installed at one end of the processing box, the air inlet of the fan passes through the processing box and is fixedly connected to the connecting shell, and the air outlet of the fan is fixedly connected to the air outlet pipe.

[0009] Preferably, a filter box is installed on one side of the processing box, and an air inlet is provided between the filter box and the processing box.

[0010] Preferably, the top of the filter box is fixedly connected to an installation pipe, and a filter screen is inserted into the filter box.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] By using first and second regenerator bricks to preheat and reheat the exhaust gas entering the combustion chamber, dependence on external energy sources (such as fuel) can be effectively reduced. Fully utilizing the heat in the exhaust gas reduces fuel consumption, thus achieving energy savings. Recovering the heat from the exhaust gas and using it to heat the gas entering the regenerator helps to better control temperature fluctuations in the equipment. A stable operating temperature helps reduce abnormal fluctuations during combustion, lowering safety risks caused by temperature instability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the filter box and the treatment box of this utility model;

[0015] Figure 3 This is a schematic diagram of the first heat storage brick structure of this utility model;

[0016] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.

[0017] In the diagram: 1. Processing box; 2. Filter box; 3. Air inlet; 4. Initial heating chamber; 5. First heating chamber; 6. Combustion chamber; 7. Second heating chamber; 8. Mounting shell; 9. Spiral plate; 10. First heat storage brick; 11. Connecting shell; 12. Main air inlet pipe; 13. Branch air inlet pipe; 14. Second heat storage brick; 15. First connecting pipe; 16. Main air outlet pipe; 17. Branch air outlet pipe; 18. Liquid outlet pipe; 19. Mounting pipe; 20. Filter screen; 21. Fan; 22. Air outlet pipe. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Thermal combustion waste gas treatment equipment is widely used for treating industrial waste gases, especially those containing volatile organic compounds or other harmful gases. Its basic principle is to burn harmful substances at high temperatures while simultaneously storing heat using ceramic regenerators, thereby improving energy efficiency and reducing fuel consumption.

[0020] like Figures 1-4 As shown, this utility model provides a technical solution: a regenerative combustion waste gas treatment device, including a treatment box 1. The treatment box 1 contains an initial heating chamber 4, a first heating chamber 5, a combustion chamber 6, and a second heating chamber 7. The initial heating chamber 4 is located below the first heating chamber 5, the combustion chamber 6, and the second heating chamber 7. The first heating chamber 5 and the second heating chamber 7 are located on either side of the combustion chamber 6. A first connecting pipe 15 is fixedly connected between the first heating chamber 5 and the combustion chamber 6. A second connecting pipe is fixedly connected between the combustion chamber 6 and the second heating chamber 7. A connecting shell 11 and a mounting shell 8 are fixedly installed between the inner walls of the two sides of the initial heating chamber 4. 8 is located inside the connecting shell 11. A spiral plate 9 is fixed between the connecting shell 11 and the mounting shell 8. An air intake main pipe 12 is fixedly connected to the outer wall of the mounting shell 8. The air intake main pipe 12 passes through the connecting shell 11. Three air intake branch pipes 13 are fixedly connected to the top of the air intake main pipe 12. The three air intake branch pipes 13 are fixedly connected to the bottom of the first heating chamber 5, the combustion chamber 6, and the second heating chamber 7, respectively. An air outlet main pipe 16 is fixedly connected to the outer wall of the connecting shell 11. Three air outlet branch pipes 17 are fixedly connected to the top of the air outlet main pipe 16. The three air outlet branch pipes 17 are fixedly connected to the bottom of the first heating chamber 5, the combustion chamber 6, and the second heating chamber 7, respectively. Multiple first heat storage bricks 10 are installed inside the housing 8, and multiple second heat storage bricks 14 are installed inside the first heating chamber 5, the combustion chamber 6, and the second heating chamber 7. Gas flows along the spiral plate 9, which slows down the gas flow rate, thereby better exchanging heat with the first heat storage bricks 10. An oxygen supply port is opened at the top of the combustion chamber 6, and an oxygen supply device is connected to the oxygen supply port to ensure that the exhaust gas in the combustion chamber 6 can be fully combusted.

[0021] It should be noted that the exhaust gas is sent into the mounting shell 8 and preheated by the first heat storage brick 10. Then, it enters the intake manifold 13 located at the bottom of the first heating chamber 5 through the intake manifold 12. It then enters the first heating chamber 5 through the intake manifold 13 and is reheated by the second heat storage brick 14. The heated exhaust gas is discharged into the combustion chamber 6 through the first connecting pipe 15 for combustion. The gas after combustion transfers heat to the second heat storage brick 14 in the combustion chamber 6, and then is discharged through the exhaust manifold 17 into the exhaust manifold 16, and then into the connecting shell 11. The gas flows along the spiral plate 9, slowing its flow rate and thus facilitating better heat exchange with the first heat storage brick 10. The next wave of exhaust gas is then sent into the mounting shell 8 and preheated by the first heat storage brick 10. It then enters the intake manifold 13 at the bottom of the combustion chamber 6 through the intake main pipe 12, and enters the combustion chamber 6 through the intake manifold 13. There, it is further heated by the second heat storage brick 14. The heated exhaust gas undergoes complete combustion within the combustion chamber 6. The combusted gas then enters the second heating chamber 7 through the second connecting pipe, where it interacts with the second heating chamber... The second heat storage brick 14 inside the 7 undergoes heat exchange. The gas then exits through the outlet pipe 17 into the outlet main pipe 16, and then into the connecting shell 11. The remaining heat in the gas is stored in the first heat storage brick 10. Finally, another wave of exhaust gas is sent into the mounting shell 8 and preheated by the first heat storage brick 10. It then enters the inlet pipe 13 located at the bottom of the second heating chamber 7 through the inlet main pipe 12, and enters the second heating chamber 7 through the inlet pipe 13. It is then reheated by the second heat storage brick 14. The heated exhaust gas enters the combustion chamber 6 through the second connecting pipe. The combustion process ensures complete combustion. The combusted gas is discharged into the first heating chamber 5 through the first connecting pipe 15, where it exchanges heat with the second heat storage brick 14 inside the first heating chamber 5. Then, it is discharged into the main exhaust pipe 16 through the exhaust branch pipe 17 at the bottom of the first heating chamber 5, and subsequently enters the connecting shell 11. The remaining heat in the gas is stored in the first heat storage brick 10. This process is repeated downwards, storing heat in the first and second heat storage bricks 10 and 14, preheating and reheating the exhaust gas entering the combustion chamber 6. This effectively reduces dependence on external energy sources (such as fuel). Utilizing the heat in the exhaust gas reduces fuel consumption, thus achieving energy savings. By recovering the heat from the exhaust gas and heating the air entering the heat storage body, it helps to better control temperature fluctuations in the equipment. A stable operating temperature helps reduce abnormal fluctuations during combustion, lowering safety risks caused by temperature instability.

[0022] like Figure 1 and Figure 2As shown, a liquid outlet pipe 18 is fixedly connected to the bottom end of the connecting shell 11, and the liquid outlet pipe 18 passes through the treatment box 1. A fan 21 is installed at one end of the treatment box 1. The air inlet of the fan 21 passes through the treatment box 1 and is fixedly connected to the connecting shell 11. An air outlet pipe 22 is fixedly connected to the air outlet of the fan 21. A filter box 2 is installed on one side of the treatment box 1, and an air inlet 3 is provided between the filter box 2 and the treatment box 1. An installation pipe 19 is fixedly connected to the top of the filter box 2, and a filter screen 20 is inserted into the filter box 2.

[0023] It should be noted that the gas after combustion is discharged through the fan 21, and the exhaust gas enters the filter box 2 through the installation pipe 19. The function of the filter screen 20 in the regenerative combustion furnace is to remove particulate matter and impurities in the exhaust gas, ensuring that the solid matter in the flue gas will not affect the combustion equipment or the subsequent heat recovery system. After that, the flue gas enters the mounting shell 8 through the air inlet 3. The control method of the electrical components in this solution is controlled by its matching peripheral controller, and the control circuit can be implemented by simple programming by those skilled in the art. It is common knowledge in the field and is only used without modification. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A regenerative combustion waste gas treatment device, comprising a treatment tank (1), characterized in that: The processing box (1) is equipped with an initial heating chamber (4), a first heating chamber (5), a combustion chamber (6), and a second heating chamber (7). The initial heating chamber (4) is located below the first heating chamber (5), the combustion chamber (6), and the second heating chamber (7). The first heating chamber (5) and the second heating chamber (7) are located on both sides of the combustion chamber (6). A first connecting pipe (15) is fixedly connected between the first heating chamber (5) and the combustion chamber (6). A second connecting pipe is fixedly connected between the combustion chamber (6) and the second heating chamber (7). A connecting shell (11) and a mounting shell (8) are fixedly connected between the inner walls of the two sides of the initial heating chamber (4). The mounting shell (8) is located inside the connecting shell (11). A spiral plate (9) is fixed between the mounting shell (8) and the mounting shell (8). An air intake pipe (12) is fixedly connected to the outer wall of the mounting shell (8). The air intake pipe (12) passes through the connecting shell (11). Three air intake branch pipes (13) are fixedly connected to the top of the air intake pipe (12). The three air intake branch pipes (13) are fixedly connected to the bottom of the first heating chamber (5), the combustion chamber (6), and the second heating chamber (7), respectively. An air outlet pipe (16) is fixedly connected to the outer wall of the connecting shell (11). Three air outlet branch pipes (17) are fixedly connected to the top of the air outlet pipe (16). The three air outlet branch pipes (17) are fixedly connected to the bottom of the first heating chamber (5), the combustion chamber (6), and the second heating chamber (7), respectively.

2. The regenerative combustion waste gas treatment device according to claim 1, characterized in that: The mounting shell (8) is provided with a plurality of first heat storage bricks (10), and the first heating chamber (5), the combustion chamber (6), and the second heating chamber (7) are provided with a plurality of second heat storage bricks (14).

3. The regenerative combustion waste gas treatment device according to claim 1, characterized in that: The bottom end of the connecting shell (11) is fixedly connected to the liquid outlet pipe (18), which passes through the processing box (1).

4. The regenerative combustion waste gas treatment device according to claim 1, characterized in that: A fan (21) is installed at one end of the processing box (1). The air inlet of the fan (21) passes through the processing box (1) and is fixedly connected to the connecting shell (11). The air outlet of the fan (21) is fixedly connected to the air outlet pipe (22).

5. The regenerative combustion waste gas treatment device according to claim 1, characterized in that: A filter box (2) is installed on one side of the processing box (1), and an air inlet (3) is provided between the filter box (2) and the processing box (1).

6. The regenerative combustion waste gas treatment device according to claim 5, characterized in that: The top of the filter box (2) is fixedly connected to an installation pipe (19), and a filter screen (20) is inserted into the filter box (2).

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