Combustion engine for internal and external mixing combined combustion
Through the design of internal and external mixed combustion engine, the alternating use of eternal lamps and combustion nozzles is solved, and the problems of insufficient combustion and large burning nozzles are achieved, achieving more efficient combustion effects and longer service life.
Patent Information
- Application Number
- CN202422181650.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-06
AI Technical Summary
During the use of existing combustion machines, the combustion nozzle is not sufficiently burned, and the burner has a large loss and a short service life.
The internal and external mixing combination combustion machine design is adopted, and the internal and external mixing combustion is achieved through the alternating use of eternal lamps and combustion nozzles, and the service life of the combustion nozzle is extended.
The adequacy of combustion and the service life of the burner are achieved, reducing the loss rate of accessories.
Smart Images
Figure CN223076921U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coal combustion in cement kilns, and specifically relates to a burner for combined internal and external mixing combustion. Background Art
[0002] In the cement firing system, the coal grinding and drying system is one of the links in the firing system. The coal grinding and drying system dries and grinds the crushed coal sent from the outside to obtain qualified pulverized coal, which enters the main device of coal gasification for combustion reaction. The hot blast stove is one of the important equipment in the coal grinding and drying system, and the burner is one of the important equipment in the combustion and drying system. The fuel is ignited through the burner.
[0003] During the use of the existing burner, a monomer design is adopted, which is not conducive to realizing internal and external mixed combustion, and the combustion is not sufficient. Moreover, during the use process, the loss of the burner nozzle inside the burner is relatively large, the replacement frequency in the later stage is relatively high, the service life of the burner nozzle is relatively short, and the loss rate of accessories is relatively large.
[0004] Therefore, the technical personnel in the field provide a burner for combined internal and external mixing combustion to solve the problems raised in the above background art. Content of the Utility Model
[0005] The purpose of the utility model is to provide a burner for combined internal and external mixing combustion to solve the problems that the combustion of the existing burner is not sufficient and it is not conducive to realizing internal and external mixed combustion raised in the above background art.
[0006] To achieve the above purpose, the utility model provides the following technical solutions:
[0007] A burner for combined internal and external mixing combustion, comprising: a pump housing, on one side of which a motor is installed; a wind door is connected to the front side of the pump housing, and a pre-combustion cylinder is connected to the front side of the wind door. A blade disc is installed inside the pre-combustion cylinder, and a pilot lamp is installed on the surface of the blade disc. An air port is arranged between the pilot lamps. A detection instrument for detecting the air inside the pre-combustion cylinder is installed on the surface of the pre-combustion cylinder. A docking flange is installed at the front end of the pre-combustion cylinder, and the pre-combustion cylinder is connected to a post-combustion cylinder through the docking flange. A combustion nozzle is installed inside the post-combustion cylinder. One side of the pre-combustion cylinder is connected to a pipeline seat, and a gas transmission pipe is connected inside the pipeline seat. One end of the gas transmission pipe is connected to a gas pipeline, and a valve is installed between the gas transmission pipe and the gas pipeline.
[0008] As a further scheme of the utility model, one end of the gas transmission pipe is connected to the pre-combustion cylinder, and the pilot lamps are distributed in a ring shape with respect to the symmetric center line of the pre-combustion cylinder.
[0009] As a further scheme of the utility model, the gas transmission pipe is connected to the gas pipeline.
[0010] As a further solution in the present utility model, a stabilizing disk is installed on the outer side of the pre-combustion cylinder, and a kit seat is installed on the surface of the stabilizing disk. A ball shaft is installed on the surface of the kit seat, and a movable connection seat is movably sleeved on the outer side of the ball shaft. A nozzle kit is installed on the surface of the movable connection seat.
[0011] As a further solution in the present utility model, the nozzle kit is movably connected between the ball shaft on the kit seat through the movable connection seat, and the nozzle kit is annularly distributed about the symmetry center line of the pre-combustion cylinder.
[0012] As a further solution in the present utility model, one side of the pre-combustion cylinder is connected with an oil pipe, and a control valve is installed on the surface of the oil pipe.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0014] The pre-combustion cylinder and the post-combustion cylinder are butt-joint installed through a butt-joint flange. A pilot burner is installed inside the post-combustion cylinder. Liquefied petroleum gas is transported through a gas pipeline. The diesel oil is ignited by the pilot burner. The liquefied petroleum gas and air are mixed and burned in the post-combustion cylinder. The post-combustion cylinder is located outside, and the pre-combustion cylinder will enter the inside of the hot blast stove. After the pilot burner is ignited, diesel oil and plant air are input into the combustion nozzle also arranged on the hot blast stove and the diesel oil is ignited by the pilot burner. After the diesel oil is ignited and stably burned, the pilot burner is extinguished and the plant air inside the pilot burner is continuously transported. After the coal gasification device produces synthesis gas, the synthesis gas is used as fuel to ignite the combustion nozzle on the hot blast stove. After the combustion nozzle is ignited, the diesel oil transported to the combustion nozzle is stopped until the combustion nozzle is extinguished. After the combustion nozzle is extinguished, the plant air inside it is still transported. In this way, the pre-combustion cylinder and the post-combustion cylinder cooperate with each other to realize the internal and external combined combustion, and the pilot burner and the combustion nozzle are alternately used, thus prolonging the service life of the combustion nozzle. Description of the Drawings
[0015] Figure 1 It is a structural schematic diagram of a burner with internal and external mixed combined combustion.
[0016] Figure 2 It is a structural schematic diagram of the post-combustion cylinder of a burner with internal and external mixed combined combustion.
[0017] Figure 3 It is a structural schematic diagram of the nozzle kit in a burner with internal and external mixed combined combustion.
[0018] Figure 4 It is a structural schematic diagram of the pipeline seat in a burner with internal and external mixed combined combustion.
[0019] In the figure: 1. Pump housing; 2. Motor; 3. Air damper; 4. Combustion rear cylinder; 401. Detection instrument; 402. Vane disc; 403. Pilot lamp; 404. Air port; 5. Pipeline seat; 501. Valve; 502. Air pipeline; 503. Gas pipeline; 6. Combustion front cylinder; 7. Butt flange; 8. Stabilizing disc; 9. Nozzle kit; 901. Movable connection seat; 902. Kit seat; 903. Ball shaft; 10. Combustion nozzle; 11. Oil pipe; 12. Control valve. Detailed implementation manners
[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0021] Please refer to Figures 1 to 4 , an internal and external mixing combined combustion burner provided by an embodiment of the present invention includes: a pump housing 1, a motor 2 is installed on one side of the pump housing 1, an air damper 3 is connected to the front side of the pump housing 1, and a combustion front cylinder 6 is connected to the front side of the air damper 3. A vane disc 402 is installed inside the combustion front cylinder 6, and a pilot lamp 403 is installed on the surface of the vane disc 402. An air port 404 is provided between the pilot lamps 403. A detection instrument 401 for detecting the air inside the combustion front cylinder 6 is installed on the surface of the combustion front cylinder 6. A butt flange 7 is installed at the front end of the combustion front cylinder 6, and the combustion front cylinder 6 is connected to a combustion rear cylinder 4 through the butt flange 7. A combustion nozzle 10 is installed inside the combustion rear cylinder 4. An oil pipe 11 is connected to one side of the combustion front cylinder 6, and a control valve 12 is installed on the surface of the oil pipe 11;
[0022] Specifically, the oil pipe 11 is used to transport diesel oil to facilitate the ignition of the pilot lamp 403 and the combustion nozzle 10. A control valve 12 is installed on the oil pipe 11 to close and cut off the oil pipe 11 and disconnect the supply of diesel oil. After the combustion nozzle 10 is ignited, the supply of diesel oil to the combustion nozzle 10 is stopped until the combustion nozzle 10 goes out.
[0023] A pipeline seat 5 is connected to one side of the combustion front cylinder 6, and a gas pipeline 503 is connected inside the pipeline seat 5. One end of the gas pipeline 503 is connected to an air pipeline 502. A valve 501 is installed between the gas pipeline 503 and the air pipeline 502. One end of the gas pipeline 503 is connected to the combustion front cylinder 6. The pilot lamps 403 are distributed in a ring shape with respect to the symmetry center line of the combustion front cylinder 6. The gas pipeline 503 and the air pipeline 502 are connected to each other;
[0024] Specifically, through the setting of the gas pipeline 503, the gas pipeline 503 is interconnected with the gas pipeline 502. The liquefied petroleum gas is transported inside the gas pipeline 503 by the gas pipeline 502, and a valve 501 is installed between the gas pipeline 503 and the gas pipeline 502. The pipeline of the gas pipeline 503 can be cut off in time through the valve 501, which is convenient for closing the pilot lamp 403.
[0025] A stabilizing disc 8 is installed on the outer side of the pre-combustion cylinder 6, and a kit seat 902 is installed on the surface of the stabilizing disc 8. A ball shaft 903 is installed on the surface of the kit seat 902. An active connection seat 901 is movably sleeved on the outer side of the ball shaft 903, and a nozzle kit 9 is installed on the surface of the active connection seat 901. The nozzle kit 9 is movably connected between the ball shaft 903 on the kit seat 902 through the active connection seat 901, and the nozzle kit 9 is annularly distributed about the symmetry center line of the pre-combustion cylinder 6.
[0026] Specifically, the pre-combustion cylinder 6 will enter the interior of the hot blast stove and perform internal mixing combustion inside the hot blast stove. The setting of the nozzle kit 9 purges the interior of the furnace, sweeps the remaining combustible gas inside the furnace, and improves the combustion safety. By utilizing the movable cooperation between the nozzle kit 9 and the ball shaft 903, the purging angle of the nozzle kit 9 is adjusted, which is beneficial for better purging of the interior of the furnace.
[0027] The working principle of the present utility model is as follows: When using the present utility model, the motor 2 drives the impeller inside the pump housing 1, and the wind enters the air port 404 through the air damper 3. The air is transported through the air port 404. Then, the liquefied petroleum gas is transported to the interior of the pre-combustion cylinder 6 through the gas pipeline 503 on the pipeline seat 5 and is ignited in cooperation with the pilot lamp 403. After the pilot lamp 403 is ignited, diesel oil is input into the combustion nozzle 10 arranged in the pre-combustion cylinder 6 through the oil pipeline 11, and factory air is continuously transported. Then, the diesel oil is ignited by the pilot lamp 403. After the diesel oil is ignited and stably burns, the valve 501 between the gas pipeline 503 and the gas pipeline 502 is closed to cut off the gas transportation, thereby extinguishing the pilot lamp 403. At the same time, the transportation of factory air inside the pilot lamp 403 is continuously maintained. After the coal gasification device produces syngas, the syngas is used as fuel to ignite the combustion nozzle 10. After the combustion nozzle 10 is ignited, the control valve 12 is closed to cut off the transportation of the oil pipeline 11, and the supply of diesel oil to the combustion nozzle 10 is stopped until the combustion nozzle 10 goes out. After the combustion nozzle 10 goes out, the transportation of factory air inside it is still maintained.
[0028] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.
Claims
1. A burner with a combined internal and external combustion, characterized in that, Comprising: A pump housing (1), on one side of which an electric motor (2) is installed. On the front side of the pump housing (1), an air damper (3) is connected, and on the front side of the air damper (3), a pre-combustion chamber (6) is connected. Inside the pre-combustion chamber (6), a vane disc (402) is installed, and on the surface of the vane disc (402), a pilot burner (403) is installed. Between the pilot burners (403), an air port (404) is provided. On the surface of the pre-combustion chamber (6), a detection instrument (401) for detecting the air inside the pre-combustion chamber (6) is installed. At the front end of the pre-combustion chamber (6), a docking flange (7) is installed, and the pre-combustion chamber (6) is connected to a post-combustion chamber (4) through the docking flange (7). Inside the post-combustion chamber (4), a combustion nozzle (10) is installed. On one side of the pre-combustion chamber (6), a pipeline seat (5) is connected, and inside the pipeline seat (5), a gas transmission pipe (503) is connected. One end of the gas transmission pipe (503) is connected to a gas pipeline (502), and a valve (501) is installed between the gas transmission pipe (503) and the gas pipeline (502).
2. The burner for combined internal and external combustion according to claim 1, characterized in that, One end of the gas transmission pipe (503) is connected to the pre-combustion chamber (6), and the pilot burners (403) are annularly distributed with respect to the symmetry center line of the pre-combustion chamber (6).
3. The burner for combined internal and external mixing combustion according to claim 1, characterized in that, The gas transmission pipe (503) is connected to the gas pipeline (502).
4. A burner with internal and external mixed combustion according to claim 1, characterized in that, On the outside of the pre-combustion chamber (6), a stabilizing disc (8) is installed, and on the surface of the stabilizing disc (8), a kit seat (902) is installed. On the surface of the kit seat (902), a ball shaft (903) is installed. An activity connection seat (901) is movably sleeved outside the ball shaft (903), and on the surface of the activity connection seat (901), a nozzle kit (9) is installed.
5. A burner for combined internal and external combustion according to claim 4, characterized in that, The nozzle kit (9) is movably connected to the ball shaft (903) on the kit seat (902) through the activity connection seat (901), and the nozzle kits (9) are annularly distributed with respect to the symmetry center line of the pre-combustion chamber (6).
6. The burner for combined internal and external combustion according to claim 1, characterized in that, On one side of the pre-combustion chamber (6), an oil pipe (11) is connected, and a control valve (12) is installed on the surface of the oil pipe (11).