Heat storage combustion device

Abstract

The utility model discloses a heat storage combustion device which comprises a combustion chamber and a heat storage chamber. A connecting pipe is arranged on the outer wall of the combustion chamber, a fuel tank is installed at the bottom of the combustion chamber, and a plurality of sets of fire spraying nozzles are installed at the bottom in the combustion chamber. The two sets of heat storage chambers are symmetrically arranged at the top of the combustion chamber, two sets of conveying pipes used for conveying high-temperature gas are arranged between the heat storage chambers and the combustion chamber, the inner diameter of the conveying pipes is smaller than that of the heat storage chambers, and heat storage bodies are inserted into the heat storage chambers. Exhaust ports used for exhausting smoke are formed in the outer walls of the two sides of the upper end of the heat storage chamber, and a top plate is mounted at the top of the heat storage chamber through fixing screws. The device is simple in structure and convenient to use, the heat accumulator can be rapidly and conveniently mounted, used, detached and replaced by detaching the top plate, the heat accumulator can be fastened through the fastening assembly, loosening of the heat accumulator in the using process is avoided, and the stability of equipment during operation is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of regenerative combustion equipment, and particularly relates to a regenerative combustion device. Background Technique

[0002] A regenerative combustion device, abbreviated as RTO, refers to a device that burns and purifies industrial organic waste gas, and uses a regenerator to exchange heat and raise the temperature of the waste gas to be treated, and exchange heat and lower the temperature of the purified exhaust gas. The combustion temperature of the combustion device for VOCs mainly depends on the ignition point of the most difficult-to-oxidize substance. Most of the temperatures are required to be above 200-300 °C of the ignition point of the most difficult-to-oxidize component. Therefore, the combustion temperature is usually designed at 760 °C - 850 °C.

[0003] After retrieval, the Chinese patent application number is: CN201510290224.5, which discloses a regenerative combustion device, including: a furnace body, a burner brick component, a furnace wall connecting piece, a regenerator, a combustible gas inlet pipe, an air-gas connecting body and an igniter. The burner brick component includes burner brick castable and a metal plate. An air nozzle and a plurality of combustible gas nozzles are arranged on the burner brick castable. The plurality of combustible gas nozzles are arranged around the air nozzle. The metal plate is sleeved outside the burner brick castable and is connected with the burner brick castable through anchor hooks. According to the regenerative combustion device of the invention, a reducing furnace atmosphere can be generated, the temperature field in the furnace is more uniform, thereby reducing the oxidation and burning loss of the workpiece surface. The uniformity of the temperature field in the furnace also ensures the overall balance and uniformity of the workpiece heating, thereby improving the quality of the heated workpiece and also extending the service life of the burner brick component. Moreover, porous staged combustion can achieve high-temperature lean-oxygen combustion, significantly reducing the NOx concentration during the combustion process, reducing the oxidation and burning loss of the molten smelting product, and being both energy-saving and environmentally friendly.

[0004] The above technical solutions and traditional regenerative combustion equipment all have the following defects:

[0005] The installation and replacement of the regenerator have certain difficulties, which are not convenient for actual use, and there is a lack of a fixing structure for the regenerator. The regenerator may become loose due to long-term use or vibration and other factors. The fixing stability of the regenerator is crucial for the normal operation and efficiency of the burner. Content of the Utility Model

[0006] The purpose of the utility model is to provide a regenerative combustion device. The device has a simple structure and is easy to use. It can quickly and conveniently install, use, disassemble and replace the regenerator by removing the top plate. The fastening component can fasten the regenerator to avoid loosening of the regenerator during use, ensuring the stability of the equipment during operation, so as to solve the problems raised in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solutions:

[0008] A regenerative combustion device includes a combustion chamber for burning industrial waste gas and a regenerative chamber for heat storage provided at the top of the combustion chamber and communicating with the combustion chamber.

[0009] A connecting pipe for accessing industrial waste gas is provided on the outer wall of the combustion chamber. A fuel tank is installed at the bottom of the combustion chamber, and multiple groups of spouting nozzles for accessing fuel and igniting are installed at the inner bottom of the combustion chamber.

[0010] Two groups of the regenerative chambers are symmetrically arranged on the top of the combustion chamber. Two groups of conveying pipes for conveying high-temperature gas are arranged between the regenerative chamber and the combustion chamber. The inner diameter of the conveying pipe is smaller than the inner diameter of the regenerative chamber. A regenerator is inserted inside the regenerative chamber. Exhaust ports for discharging flue gas are arranged on both outer walls at the upper ends of the regenerative chamber. A top plate is installed on the top of the regenerative chamber through fixing screws.

[0011] Preferably, it further includes a fastening mechanism for preventing the regenerator from loosening. The fastening mechanism includes a fastening screw threadedly installed at the center of the top plate and a fastening plate having the same cross-sectional size as the regenerator. A handle is welded to the upper end of the fastening screw.

[0012] Preferably, through holes corresponding to the honeycomb holes on the regenerator are provided on the fastening plate. A bearing seat is installed at the center of the top of the fastening plate. The lower end of the fastening screw is inserted and fixed in the inner ring of the bearing of the bearing seat.

[0013] Preferably, lower ear seats are symmetrically arranged at the top edge of the regenerative chamber, and upper ear seats are symmetrically arranged at the edge of the top plate. Through holes for the fixing screws to pass through are provided on both the lower ear seats and the upper ear seats.

[0014] Preferably, anti-falling rods for preventing the regenerator from falling loose are arranged inside the upper end of the conveying pipe, and multiple groups of the anti-falling rods are equidistantly distributed.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] In the present utility model, a conveying pipe is provided on the combustion chamber. The upper end of the conveying pipe is connected to the regenerative chamber. The inner cavity of the regenerative chamber and the regenerator have a sliding clearance fit. Exhaust ports are arranged on the outer wall at the upper end of the regenerative chamber. The top plate is installed on the top of the regenerative chamber through fixing screws, and a fastening mechanism including a fastening screw and a fastening plate is arranged on the top plate. The lower end of the fastening screw is inserted into the inner ring of the bearing of the bearing seat on the top of the fastening plate. Through holes corresponding to the honeycomb holes of the regenerator are provided on the fastening plate. The device has a simple structure and is convenient to use. The regenerator can be quickly and conveniently installed, used, disassembled and replaced by removing the top plate. The regenerator can be fastened through the fastening assembly, avoiding loosening of the regenerator during use and ensuring the stability of the equipment during operation. Description of the Drawings

[0017] Figure 1 is a structural schematic diagram of the present utility model;

[0018] Figure 2 is a structural schematic diagram of the combustion chamber of the present utility model;

[0019] Figure 3 is a structural schematic diagram of the regenerator of the present utility model;

[0020] Figure 4 is a structural schematic diagram of the delivery pipe of the present utility model;

[0021] Figure 5 is a structural schematic diagram of the fastening mechanism of the present utility model.

[0022] In the figure: 1. Combustion chamber; 2. Fuel tank; 3. Connecting pipe; 4. Spraying nozzle; 5. Delivery pipe; 6. Regenerator; 7. Top plate; 8. Regenerator body; 9. Exhaust port; 10. Anti-falling rod; 11. Fastening screw; 12. Handle; 13. Fastening plate; 14. Bearing seat; 15. Lower ear seat; 16. Upper ear seat. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-5 , the present utility model provides a technical solution:

[0025] A regenerative combustion device includes a combustion chamber 1 for burning industrial waste gas and a regenerator 6 provided on the top of the combustion chamber 1 and communicating with the combustion chamber 1 for heat storage; a connecting pipe 3 for accessing industrial waste gas is provided on the outer wall of the combustion chamber 1, a fuel tank 2 is installed at the bottom of the combustion chamber 1, and multiple groups of spraying nozzles 4 for accessing fuel and igniting are installed at the inner bottom of the combustion chamber 1; two groups of regenerators 6 are symmetrically arranged on the top of the combustion chamber 1, two groups of delivery pipes 5 for transporting high-temperature gas are arranged between the regenerator 6 and the combustion chamber 1, the inner diameter of the delivery pipe 5 is smaller than the inner diameter of the regenerator 6, a regenerator body 8 is inserted into the regenerator 6, exhaust ports 9 for discharging flue gas are arranged on both outer walls at the upper end of the regenerator 6, and a top plate 7 is installed on the top of the regenerator 6 through fixing screws.

[0026] The utility model is provided with a delivery pipe 5 on a combustion chamber 1. The upper end of the delivery pipe 5 is connected to a regenerator chamber 6. The inner cavity of the regenerator chamber 6 and a regenerator body 8 are in sliding clearance fit. An exhaust port 9 is arranged on the outer wall at the upper end of the regenerator chamber 6. The top of the regenerator chamber 6 is installed with a top plate 7 through fixing screws. During use, the waste gas to be treated is introduced into the combustion chamber 1, and the ignition device is started for combustion purification. The hot gas formed after purification is transported to the regenerator chamber 6 through the delivery pipe 5, and after passing through the honeycomb holes on the regenerator body 8, it is discharged through the exhaust port 9. At the same time, heat is stored in the regenerator body 8. When the regenerator body 8 needs to be replaced, the top plate 7 can be removed, and the regenerator body 8 can be quickly installed, used, disassembled and replaced.

[0027] It further includes a fastening mechanism for preventing the regenerator body 8 from loosening. The fastening mechanism includes a fastening screw rod 11 threadedly installed at the central position of the top plate 7 and a fastening plate 13 having the same cross-sectional size as the regenerator body 8. A handle 12 is welded to the upper end of the fastening screw rod 11. Through holes corresponding to the honeycomb holes on the regenerator body 8 are formed on the fastening plate 13. A bearing seat 14 is installed at the central position of the top of the fastening plate 13. The lower end of the fastening screw rod 11 is inserted and fixed in the inner ring of the bearing of the bearing seat 14.

[0028] By providing a fastening mechanism including a fastening screw rod 11 and a fastening plate 13 on the top plate 7, the lower end of the fastening screw rod 11 is inserted into the inner ring of the bearing of the bearing seat 14 at the top of the fastening plate 13, and through holes corresponding to the honeycomb holes of the regenerator body 8 are formed on the fastening plate 13. After the regenerator body 8 is inserted into the regenerator chamber 6, the fastening screw rod 11 is rotated to drive the fastening plate 13 to move downward until it abuts against the top of the regenerator body 8. The fastening plate 13 with through holes can fasten the regenerator body 8 without affecting the passage of gas, thus preventing the regenerator body 8 from loosening.

[0029] Lower ear seats 15 are symmetrically arranged at the top edge of the regenerator chamber 6, upper ear seats 16 are symmetrically arranged at the edge of the top plate 7, and through holes for the fixing screws to pass through are formed on both the lower ear seats 15 and the upper ear seats 16. An anti-falling rod 10 for preventing the regenerator body 8 from falling loose is arranged inside the upper end of the delivery pipe 5, and multiple groups of the anti-falling rods 10 are equidistantly distributed.

[0030] By providing lower ear seats 15 with through holes at the top of the regenerator chamber 6 and upper ear seats 16 with through holes at the edge of the top plate 7, and the upper and lower ear seats 15 are correspondingly arranged, and the fixing screws pass through and are connected by nuts. Through simple threaded connection, the top plate 7 can be quickly and conveniently installed and removed, so as to facilitate the insertion and removal of the regenerator body 8.

[0031] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present utility model.

Claims

1. A regenerative combustion device, characterized in that: It includes a combustion chamber (1) for burning industrial waste gas and a regenerator chamber (6) for heat storage, which is arranged at the top of the combustion chamber (1) and communicated with the combustion chamber (1). A connecting pipe (3) for accessing industrial waste gas is arranged on the outer wall of the combustion chamber (1). A fuel tank (2) is installed at the bottom of the combustion chamber (1), and multiple groups of burner nozzles (4) for accessing fuel and igniting are installed at the inner bottom of the combustion chamber (1). Two groups of regenerator chambers (6) are symmetrically arranged at the top of the combustion chamber (1). Two groups of conveying pipes (5) for conveying high-temperature gas are arranged between the regenerator chamber (6) and the combustion chamber (1). The inner diameter of the conveying pipe (5) is smaller than the inner diameter of the regenerator chamber (6). A regenerator body (8) is inserted into the regenerator chamber (6). Exhaust ports (9) for discharging flue gas are arranged on both outer walls at the upper ends of the regenerator chamber (6). A top plate (7) is installed on the top of the regenerator chamber (6) through fixing screws.

2. The regenerative combustion device according to claim 1, characterized in that: It also includes a fastening mechanism for preventing the regenerator body (8) from loosening. The fastening mechanism includes a fastening screw rod (11) threadedly installed at the center of the top plate (7) and a fastening plate (13) having the same cross-sectional size as the regenerator body (8). A handle (12) is welded to the upper end of the fastening screw rod (11).

3. The regenerative combustion device according to claim 2, wherein: Through holes corresponding to the honeycomb holes on the regenerator body (8) are formed in the fastening plate (13). A bearing seat (14) is installed at the center of the top of the fastening plate (13). The lower end of the fastening screw rod (11) is inserted and fixed in the inner ring of the bearing of the bearing seat (14).

4. The regenerative combustion device according to claim 1, characterized in that: Lower ear seats (15) are symmetrically arranged at the top edge of the regenerator chamber (6). Upper ear seats (16) are symmetrically arranged at the edge of the top plate (7). Through holes for the fixing screws to pass through are formed in both the lower ear seats (15) and the upper ear seats (16).

5. A regenerative combustion device according to claim 1, characterized in that: Anti-falling rods (10) for preventing the regenerator body (8) from falling loose are arranged inside the upper end of the conveying pipe (5), and multiple groups of anti-falling rods (10) are equidistantly distributed.

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