Power station boiler ash removal optimizing device

Abstract

The utility model belongs to the technical field of power station boilers, and particularly discloses a power station boiler ash removal optimizing device which comprises a lower boiler body, the upper end of the lower boiler body is connected with an upper boiler body, the middle of the lower end of the lower boiler body is connected with a barrel, the upper portion of the inner wall of the barrel is connected with a partition plate, and the middle of the upper end of the partition plate is rotationally connected with a rotary barrel. The lower end of the rotary drum penetrates and extends to the lower end of the partition plate, one side of the lower end of the inner wall of the drum body is connected with a motor, and the output end of the motor is connected with a first gear. Therefore, all-directional ash removal treatment can be conducted on the boiler wall, the ash removal efficiency is improved, residual ash on the boiler wall can be conveniently scraped and removed, the ash removal effect is further improved, and meanwhile the cleaning rod is conveniently replaced and detached.

Description

Technical Field

[0001] The utility model belongs to the technical field of power station boilers, and particularly relates to a power station boiler ash cleaning optimization device. Background Art

[0002] The so-called power plant boiler, in layman's terms, is a boiler used to generate electricity in power plants. It is generally large in capacity, with the main unit being 600MW. The more advanced ones are ultra-supercritical boilers, with a capacity of up to 1000MW. There are two main types of power plant boilers: pulverized coal boilers and circulating fluidized bed boilers. These two types of boilers are the main types used in power plants. The biggest difference between fluidized bed boilers and pulverized coal boilers is the different fuel states, namely liquid and powdered coal.

[0003] Boiler cleaning is a daily task during the operation of the boiler, because during the operation of the boiler, a large amount of ash will be generated after the fuel is burned. Part of this ash remains in the furnace and is discharged in the form of slag, and the other part enters the tail flue together with the high-temperature airflow. When the ash-laden airflow flows through the various heat exchange surfaces of the tail flue, some ash particles will be deposited on the heating surfaces to form ash accumulation. Ash accumulation will reduce the heat exchange efficiency of the boiler, resulting in a decrease in boiler efficiency, and may even cause the entire heating system to be paralyzed.

[0004] The conventional soot cleaning device of the existing boiler usually uses a single soot blowing device to remove the dust from the inner wall, or cleans the inside of the boiler through traditional mechanical methods. The air outlet of the current soot blowing device is usually fixed, and the position of the air outlet cannot be adjusted as needed, resulting in the inconvenience of removing the dust on the furnace wall that the gas has not touched. Both cleaning methods cannot completely and thoroughly remove the dust on the inner wall of the boiler. Therefore, the practical performance of the current boiler soot cleaning device is poor. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a power station boiler ash cleaning optimization device.

[0006] To achieve the above objectives, the utility model provides a power station boiler ash cleaning optimization device, comprising a lower furnace body, the upper end of the lower furnace body is connected to the upper furnace body, the middle of the lower end of the lower furnace body is connected to a cylinder, the upper part of the inner wall of the cylinder is connected to a partition, the middle part of the upper end of the partition is rotatably connected to a rotating drum, the lower end of the rotating drum extends through to the lower end of the partition, one side of the lower end of the inner wall of the cylinder is connected to a motor, the output end of the motor is connected to a first gear, one side of the first gear is meshed with a second gear, the inner wall of the second gear is connected to the lower outer side of the rotating drum, the upper outer side of the rotating drum is connected to a cleaning assembly, and the lower side of the lower furnace body is connected to an air intake assembly.

[0007] In the above technical solution, further, the cleaning assembly includes a connecting block, and slots are evenly opened on both sides of the upper end of the connecting block. The middle of the lower ends of the inner walls of the two slots are connected to a card block, and the middle of the upper ends of the two card blocks are connected to a connecting rod. One end of the two connecting rods is connected to a cleaning rod, and one side of the two cleaning rods is in contact with both sides of the inner wall of the upper furnace body and the lower furnace body respectively.

[0008] In the above technical solution, further, the middle parts of the lower ends of the two clamping blocks are connected with screws, the lower ends of the two screws extend through and extend to the lower end of the connecting block, the middle parts of the outer sides of the two screws are threadedly connected with nuts, and the upper ends of the two nuts are respectively connected to the two sides of the lower end of the connecting block.

[0009] In the above technical solution, further, the number of the cleaning rods is two groups, and the upper ends of the two cleaning rods are both arranged in an inclined shape.

[0010] In the above technical solution, further, the air intake assembly includes a support plate, a soot blowing device is connected to one side of the upper end of the support plate, a delivery pipe is connected to the middle of the lower end of the soot blowing device, the lower end of the delivery pipe passes through the support plate and the cylinder in sequence and extends to the inside of the cylinder, a rotary joint is connected to one side of the upper end of the delivery pipe, the upper end of the rotary joint is rotatably connected to a support pipe, the support pipe is located inside the rotating cylinder, and nozzles are evenly connected to the upper ends of both sides of the support pipe.

[0011] In the above technical solution, further, several of the nozzles and one end of the other nozzles extend through both sides of the drum respectively, and through holes are opened on both sides of the drum corresponding to the multiple nozzles respectively, and the nozzles are located inside the through holes, and the shape of the nozzles is trumpet-shaped.

[0012] In the above technical solution, further, an opening is provided at the upper end of the partition corresponding to the rotating drum, and the lower outer side of the rotating drum is located inside the opening.

[0013] In the above technical solution, further, slide rods are connected to the lower parts of both sides of the rotating drum, and sliding grooves are opened at the two sides of the inner wall of the drum corresponding to the two slide rods, and one end of the two slide rods are respectively located in the sliding grooves for sliding connection.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] Through the arrangement of the drum, motor, first gear, second gear, soot blowing equipment, conveying pipe, rotary joint, support pipe and nozzle, the angle position of multiple nozzles can be adjusted at will, so that the cleaning gas can evenly contact all parts of the inner wall of the boiler, thereby achieving all-round cleaning of the boiler wall and improving the cleaning efficiency;

[0016] By setting the connecting block, slot, block, screw, nut, connecting rod and cleaning rod, it is easy to scrape and clean the dust remaining on the furnace wall, thereby improving the cleaning effect, and it is also easy to replace and disassemble the cleaning rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure proposed by the utility model;

[0018] Figure 2 A cross-sectional view of the present invention;

[0019] Figure 3 This is a schematic diagram of the installation structure of the scraper proposed in the utility model;

[0020] Figure 4 This is a schematic diagram of the installation structure of the rotating drum proposed in the utility model;

[0021] Figure 5 The utility model proposed Figure 2 Schematic diagram of the enlarged structure of A;

[0022] Figure 6 The utility model proposed Figure 4 Schematic diagram of the enlarged structure of B.

[0023] In the figure: 1. Lower furnace body; 2. Upper furnace body; 3. Cylinder; 4. Partition; 5. Rotating drum; 6. Motor; 7. First gear; 8. Second gear; 9. Connecting block; 10. Slot; 11. Block; 12. Screw; 13. Nut; 14. Connecting rod; 15. Cleaning rod; 16. Support plate; 17. Soot blowing equipment; 18. Delivery pipe; 19. Rotary joint; 20. Support pipe; 21. Nozzle. DETAILED DESCRIPTION

[0024] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] like Figures 1-6The shown power station boiler ash cleaning optimization device includes a lower furnace body 1, the upper end of the lower furnace body 1 is connected to the upper furnace body 2, which is convenient for separating the upper furnace body 2 from the lower furnace body 1, so that the cleaning rod 15 can be replaced and repaired, and the middle part of the lower end of the lower furnace body 1 is connected to the cylinder 3 to support the lower end of the rotating drum 5. The upper part of the inner wall of the cylinder 3 is connected to the partition 4 to improve the stability of the rotation of the rotating drum 5 and prevent dust inside the lower furnace body 1 from entering the lower end of the partition 4. The middle part of the upper end of the partition 4 is rotatably connected to the rotating drum 5, and the lower end of the rotating drum 5 extends through to the lower end of the partition 4. A motor 6 is connected to one side of the lower end of the inner wall of the cylinder 3 to drive the first gear 7, the second gear 8 and the rotating drum 5 to rotate. The output end of the motor 6 is connected to the first gear 7, and one side of the first gear 7 is meshed with the second gear 8. Gear 8, the inner wall of the second gear 8 is connected to the lower outer part of the rotating drum 5, the upper outer part of the rotating drum 5 is connected to a cleaning component, the lower part of one side of the lower furnace body 1 is connected to an air intake component, the cleaning component includes a connecting block 9, and slots 10 are evenly opened on both sides of the upper end of the connecting block 9, and the blocks 11 are clamped and placed. The middle of the lower end of the inner wall of the two slots 10 is connected to a block 11, and the middle of the upper end of the two blocks 11 is connected to a connecting rod 14 to fix the cleaning rod 15. One end of the two connecting rods 14 is connected to the cleaning rod 15, and one side of the two cleaning rods 15 is respectively in contact with both sides of the inner wall of the upper furnace body 2 and the lower furnace body 1, and the middle of the lower end of the two blocks 11 is connected to a screw 12. The lower ends of the two screws 12 extend through the lower end of the connecting block 9, and the middle of the outer sides of the two screws 12 are threaded. A nut 13 is connected to fix the card block 11 inside the card slot 10, and the upper ends of the two nuts 13 are respectively connected to the two sides of the lower end of the connecting block 9. There are two groups of cleaning rods 15, and the upper ends of the two cleaning rods 15 are arranged in an inclined shape. The air intake assembly includes a support plate 16, which is convenient for supporting the soot blowing equipment 17. The soot blowing equipment 17 is connected to one side of the upper end of the support plate 16. The middle part of the lower end of the soot blowing equipment 17 is connected to a delivery pipe 18. The lower end of the delivery pipe 18 passes through the support plate 16 and the cylinder 3 in sequence and extends to the inside of the cylinder 3. One side of the upper end of the delivery pipe 18 is connected to a rotary joint 19 to facilitate the rotation of the support pipe 20. The upper end of the rotary joint 19 is rotatably connected to the support pipe 20. The middle part of the outer side of the support pipe 20 is connected to the middle of the inner wall of the rotating drum 5 through a fixed block. The support tube 20 is located inside the rotating drum 5, and nozzles 21 are evenly connected to the upper ends of both sides of the support tube 20, so that the soot blowing gas can be evenly sprayed to the inner walls of the lower furnace body 1 and the upper furnace body 2 through multiple nozzles 21, among which several nozzles 21 and one end of other nozzles 21 extend through and extend to both sides of the rotating drum 5, and through holes are opened on both sides of the rotating drum 5 corresponding to multiple nozzles 21. The nozzles 21 are located inside the through holes, and the shape of the nozzles 21 is trumpet-shaped. An opening is opened at the upper end of the partition 4 corresponding to the rotating drum 5, and the lower part of the outer side of the rotating drum 5 is located inside the opening. Slide rods are connected to the lower parts of both sides of the rotating drum 5 to improve the stability of the rotation of the rotating drum 5. Slide grooves are opened on both sides of the inner wall of the cylinder 3 corresponding to the two slide rods, and one end of the two slide rods are respectively located inside the slide grooves for sliding connection.

[0026] Working principle: When it is necessary to clean the interior of the boiler, the soot blowing device 17 is operated, and the compressed gas enters the support tube 20 through the delivery pipe 18 and the rotary joint 19. The gas inside the support tube 20 is evenly sprayed to the inner walls of the lower furnace body 1 and the upper furnace body 2 through multiple nozzles 21. At the same time, the motor 6 drives the first gear 7 to rotate, so that the second gear 8 and the rotating drum 5 rotate, driving the support tube 20 and the multiple nozzles 21 to rotate, so that the cleaning gas can be evenly sprayed to the inner walls of the lower furnace body 1 and the upper furnace body 2. At the same time, the rotating drum 5 drives the continuous The connecting block 9, the clamping block 11, the connecting rod 14 and the cleaning rod 15 are rotated so that the two cleaning rods 15 scrape the inner wall of the lower furnace body 1 and the inner wall of the upper furnace body 2 respectively, so that the dust remaining on the inner wall of the furnace wall can be scraped off, thereby improving the cleaning effect of the boiler. Then, the upper furnace body 2 is removed, and the two nuts 13 are removed. The connecting rod 14 and the cleaning rod 15 can be lifted to separate the clamping block 11 from the card slot 10, which is convenient for replacing and repairing the cleaning rod 15. After cleaning is completed, the cylinder 3 is separated from the lower furnace body 1, and the dust inside the lower furnace body 1 is discharged.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention.

Claims

1. A power station boiler ash cleaning optimization device, comprising a lower furnace body (1), characterized in that: The upper end of the lower furnace body (1) is connected to the upper furnace body (2), the middle of the lower end of the lower furnace body (1) is connected to the cylinder (3), the upper part of the inner wall of the cylinder (3) is connected to the partition (4), the middle part of the upper end of the partition (4) is rotatably connected to the rotating drum (5), the lower end of the rotating drum (5) extends through to the lower end of the partition (4), one side of the lower end of the inner wall of the cylinder (3) is connected to the motor (6), the output end of the motor (6) is connected to the first gear (7), one side of the first gear (7) is meshed with the second gear (8), the inner wall of the second gear (8) is connected to the lower outer part of the rotating drum (5), the upper outer part of the rotating drum (5) is connected to the cleaning component, and the lower part of one side of the lower furnace body (1) is connected to the air intake component.

2. A power plant boiler cleaning optimization device according to claim 1, characterized in that: The cleaning assembly comprises a connecting block (9), wherein slots (10) are evenly formed on both sides of the upper end of the connecting block (9), the middle parts of the lower ends of the inner walls of the two slots (10) are connected to a clamping block (11), the middle parts of the upper ends of the two clamping blocks (11) are connected to a connecting rod (14), and one end of the two connecting rods (14) is connected to a cleaning rod (15), and one side of the two cleaning rods (15) contacts the inner walls of the upper furnace body (2) and the lower furnace body (1), respectively.

3. The power plant boiler cleaning optimization device according to claim 2, characterized in that: The middle parts of the lower ends of the two clamping blocks (11) are connected to screw rods (12), the lower ends of the two screw rods (12) extend through the lower end of the connecting block (9), the middle parts of the outer sides of the two screw rods (12) are threadedly connected to nuts (13), and the upper ends of the two nuts (13) are respectively connected to the two sides of the lower end of the connecting block (9).

4. The power plant boiler cleaning optimization device according to claim 2, characterized in that: The number of the cleaning rods (15) is two groups, and the upper ends of the two cleaning rods (15) are both arranged in an inclined shape.

5. The power plant boiler cleaning optimization device according to claim 1, characterized in that: The air intake assembly includes a support plate (16), a soot blowing device (17) is connected to one side of the upper end of the support plate (16), a delivery pipe (18) is connected to the middle of the lower end of the soot blowing device (17), the lower end of the delivery pipe (18) passes through the support plate (16) and the cylinder (3) in sequence and extends to the inside of the cylinder (3), the upper end of the delivery pipe (18) is connected to one side of the upper end of the delivery pipe (18), the upper end of the rotary joint (19) is rotatably connected to a support pipe (20), the support pipe (20) is located inside the rotating cylinder (5), and the upper ends of both sides of the support pipe (20) are evenly connected to nozzles (21).

6. The power plant boiler cleaning optimization device according to claim 5, characterized in that: One end of several of the nozzles (21) and several other nozzles (21) respectively extends through both sides of the rotating drum (5), and through holes are opened on both sides of the rotating drum (5) corresponding to the plurality of nozzles (21). The nozzles (21) are located inside the through holes, and the shape of the nozzles (21) is trumpet-shaped.

7. The power plant boiler cleaning optimization device according to claim 1, characterized in that: An opening is provided at the upper end of the partition (4) corresponding to the rotating drum (5), and the lower outer portion of the rotating drum (5) is located inside the opening.

8. The power plant boiler cleaning optimization device according to claim 1, characterized in that: The lower parts of both sides of the rotating drum (5) are connected with sliding rods, and sliding grooves are provided on both sides of the inner wall of the cylinder (3) corresponding to the two sliding rods, and one end of the two sliding rods is respectively located inside the sliding grooves for sliding connection.

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