A boiler decoking tool for a thermal power plant

Abstract

The utility model relates to fire power energy electric power equipment technical field discloses a kind of boiler decoking tools of fire power plant, including waste box, the right side of the waste box is equipped with blowdown, the inner wall of the blowdown is slidably connected with blowdown pin, the inner wall of the waste box is fixedly connected with screening plate, the top of the waste box is rotatably connected with top cover, the front side of the waste box is fixedly connected with vacuum pump, the output end of the vacuum pump is fixedly connected with hose, the top of the hose is fixedly connected with dustpan, the left and right sides of the dustpan are fixedly connected with connecting rotating rod.

Description

Technical Field

[0001] This utility model relates to the field of thermal power equipment technology, and in particular to a coke removal tool for boilers in thermal power plants. Background Technology

[0002] In the context of boiler decoking tools for thermal power plants, thermal power plants are the application scenario, referring to places that generate electricity by burning coal and natural gas. The boiler is the core equipment, used to convert the heat generated by fuel combustion into high-temperature and high-pressure steam, which drives the steam turbine to drive the generator to generate electricity. Decoking is the core function, which is to clean the hard clumps formed on the inner wall of the boiler after combustion. The tools are special mechanical devices that achieve the decoking function when the boiler is shut down.

[0003] The core purpose of coke removal tools for boilers in thermal power plants is to solve the problem of coke accumulation affecting thermal efficiency and even causing pipe ruptures during boiler operation, ensuring stable and safe boiler operation. Currently, the mainstream technology uses high-pressure water jets for coke removal, which involves using high-pressure water to impact the coke on the boiler's inner wall, breaking it up with the force of the water flow. However, this method has significant drawbacks. The flushed coke fragments fall directly to the bottom of the boiler, accumulating as the removal process progresses, easily clogging the boiler's ash discharge port and causing the ash discharge function to fail. To solve this blockage problem, personnel must manually shovel the ash inside the boiler, which is not only in a harsh working environment with high dust and temperature but also consumes a lot of manpower and time. Furthermore, the water from the high-pressure water jet mixes with the coke fragments, forming water-laden residue. Long-term accumulation of this residue at the bottom of the boiler causes moisture to build up on the metal components, leading to rust, shortening the boiler's lifespan, and increasing equipment maintenance costs. Summary of the Invention

[0004] To overcome the above shortcomings, this utility model provides a coke removal tool for boilers in thermal power plants, which aims to improve the problem in the prior art where the flushed coke slag falls directly to the bottom of the boiler. As the coke removal operation progresses, the coke slag accumulates continuously, which can easily clog the boiler's ash discharge port and cause the boiler's ash discharge function to fail.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a coke removal tool for a boiler in a thermal power plant, comprising a waste bin, a drain outlet on the right side of the waste bin, a drain pin slidably connected to the inner wall of the drain outlet, a screening plate fixedly connected to the inner wall of the waste bin, a top cover rotatably connected to the top of the waste bin, a vacuum pump fixedly connected to the front side of the waste bin, a hose fixedly connected to the output end of the vacuum pump, a winnowing basket fixedly connected to the top of the hose, connecting rods fixedly connected to the left and right sides of the winnowing basket, a rotating shaft fixedly connected between adjacent connecting rods, and an adjusting mechanism fixedly connected between adjacent rotating shafts, the adjusting mechanism being used to adjust the water flow rate.

[0006] As a further description of the above technical solution: The adjusting mechanism includes a nozzle, the outer wall of which is fixedly connected to adjacent rotating shafts. A telescopic tube is fixedly connected to the rear side of the nozzle, a sealing column is fixedly connected to the inner wall of the telescopic tube, a connecting shaft is rotatably connected to the inner wall of the sealing column, a fixing nut is threaded to the top of the connecting shaft, a handle is rotatably connected to the bottom of the fixing nut, a sealing ring is rotatably connected to the bottom of the handle, and a gate valve is fixedly connected to the bottom of the connecting shaft.

[0007] As a further description of the above technical solution: A controller is fixedly connected to the top of the vacuum pump, and the controller and the vacuum pump are electrically connected.

[0008] As a further description of the above technical solution: A water storage tank is fixedly connected to the right side of the vacuum pump, and a cover is fixedly connected to the top of the water storage tank.

[0009] As a further description of the above technical solution: The water tank has a water inlet on its rear side, and an electrical box is fixedly connected to the rear side of the water tank.

[0010] As a further description of the above technical solution: An anti-electric shock door is rotatably connected to the inner wall of the electrical box, and a handle is fixedly connected to the rear side of the anti-electric shock door.

[0011] As a further description of the above technical solution: The bottom of the vacuum pump is fixedly connected to a support plate, and the bottom of the support plate is rotatably connected to multiple casters.

[0012] As a further description of the above technical solution: An observation window is fixedly connected to the right side of the waste bin, and a pressure gauge is fixedly connected to the left side of the vacuum pump.

[0013] This utility model has the following beneficial effects: 1. In this utility model, firstly, through human observation, and then through human control of the vacuum pump's power output using a controller, high-pressure coke flushing is performed during the boiler's coke removal process. The free rotation of the shaft and the connection of the connecting rod allow the sieve to pass the coke through holes on the sieve and via a flexible hose. After passing through the vacuum pump, the coke is then transferred to the inside of the waste bin. The waste bin's inner wall is then screened by a screening plate, separating the solids from the liquids. Finally, the waste liquid is discharged through a drain pin on the drain outlet. This eliminates the need for dedicated personnel to clean the boiler's slag, saving labor. The boiler bottom will not accumulate slag and become clogged, and it is less prone to rust, extending the boiler's service life. Furthermore, the boiler interior is cleaner after the coke flushing process.

[0014] 2. In this utility model, the condition of the coke on the inner wall of the boiler is first observed by human observation. Then, it is controlled by human operation by turning the hand. With the fixing of the fixing nut and the sealing of the sealing ring and sealing column, it is prevented from being damaged by high pressure. Under the rotation of the hand, the connecting shaft and the special gate valve fixedly connected to it are rotated. By utilizing the special shape of the gate valve, the water flow inside the telescopic pipe is controlled, thereby reducing damage to the inner wall of the boiler, reducing the cost of use, and improving practicality. Attached Figure Description

[0015] Figure 1 This is a front perspective view of a descaling tool for a thermal power plant boiler proposed in this utility model; Figure 2 This is a top view of a descaling tool for a thermal power plant boiler proposed in this utility model; Figure 3 This is a side view of a decoking tool for a thermal power plant boiler proposed in this utility model; Figure 4 This is a partial structural diagram of a decoking tool for a thermal power plant boiler proposed in this utility model; Figure 5 This is a partial structural exploded view of a descaling tool for a thermal power plant boiler proposed in this utility model.

[0016] Legend: 1. Waste bin; 2. Adjustment mechanism; 201. Nozzle; 202. Telescopic tube; 203. Sealing column; 204. Connecting shaft; 205. Fixing nut; 206. Handle; 207. Sealing ring; 208. Gate valve; 3. Drain outlet; 4. Drain pin; 5. Screening plate; 6. Top cover; 7. Vacuum pump; 8. Hose; 9. Dustpan; 10. Connecting rod; 11. Rotating shaft; 12. Controller; 13. Water storage tank; 14. Cover; 15. Water inlet; 16. Electrical box; 17. Anti-electric shock door; 18. Handle; 19. Support plate; 20. Casters; 21. Observation window; 22. Pressure gauge. Detailed Implementation

[0017] 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.

[0018] Please see the appendix Figure 3 and attached Figure 4 An embodiment of this utility model provides a coke removal tool for a boiler in a thermal power plant, comprising a waste bin 1, a drain outlet 3 on the right side of the waste bin 1, a drain pin 4 slidably connected to the inner wall of the drain outlet 3, a screening plate 5 fixedly connected to the inner wall of the waste bin 1, a top cover 6 rotatably connected to the top of the waste bin 1, a vacuum pump 7 fixedly connected to the front side of the waste bin 1, a hose 8 fixedly connected to the output end of the vacuum pump 7, a winnowing basket 9 fixedly connected to the top of the hose 8, connecting rods 10 fixedly connected to the left and right sides of the winnowing basket 9, a rotating shaft 11 fixedly connected between adjacent connecting rods 10, and an adjustment mechanism 2 fixedly connected between adjacent rotating shafts 11, the adjustment mechanism 2 being used to adjust the water flow rate; Specifically, the waste bin 1 can collect waste generated during coking. Its right-side drain port 3, in conjunction with the drain pin 4 sliding on the inner wall, can control the opening and closing of the drain port 3 to discharge waste by inserting and removing the drain pin 4. The screening plate 5 on the inner wall of the waste bin 1 can screen the collected waste and separate residues of different sizes. The rotating top cover 6 of the waste bin 1 is easy to open for cleaning the interior or checking the screening. When the vacuum pump 7 fixed at the front is working, it generates suction, which is transmitted to the sieve 9 fixed at the top through the hose 8 fixed at the output end. The sieve 9 can be close to the inner wall of the boiler to catch the coke block waste that is washed down. With the help of suction, the waste is sucked into the waste bin 1 through the hose 8. The connecting rotating rods 10 fixed on the left and right sides of the sieve 9 cooperate with the rotating shafts 11 fixed between adjacent connecting rotating rods 10 to adjust the angle of the sieve 9 to adapt to the coking needs of different positions. The adjustment mechanism 2 fixed between multiple adjacent rotating shafts 11 can adjust the water flow to adapt to the rinsing needs of coke blocks of different hardness.

[0019] Please see the appendix Figure 2 and attached Figure 5 The adjusting mechanism 2 includes a nozzle 201. The outer wall of the nozzle 201 is fixedly connected to adjacent rotating shafts 11. A telescopic tube 202 is fixedly connected to the rear side of the nozzle 201. A sealing column 203 is fixedly connected to the inner wall of the telescopic tube 202. A connecting shaft 204 is rotatably connected to the inner wall of the sealing column 203. A fixing nut 205 is threadedly connected to the top of the connecting shaft 204. A handle 206 is rotatably connected to the bottom of the fixing nut 205. A sealing ring 207 is rotatably connected to the bottom of the handle 206. A gate valve 208 is fixedly connected to the bottom of the connecting shaft 204. Specifically, in the adjustment mechanism 2, the outer wall of the nozzle 201 is fixed adjacent to multiple rotating shafts 11, which can spray water to flush away coke. The telescopic tube 202 fixed to the rear of the nozzle 201 can adjust the position of the nozzle 201. The sealing column 203 on the inner wall of the telescopic tube 202 ensures the sealing performance. The connecting shaft 204 on the inner wall of the sealing column 203 can rotate. The fixing nut 205 with a threaded connection at the top can fix the connecting shaft 204. The handle 206 at the bottom of the fixing nut 205 facilitates rotation and adjustment. The sealing ring 207 at the bottom of the handle 206 enhances the sealing. The gate valve 208 at the bottom of the connecting shaft 204 can control the water flow and adjust the water flow size.

[0020] Please see the appendix Figure 1 and attached Figure 3 A controller 12 is fixedly connected to the top of the vacuum pump 7. The controller 12 and the vacuum pump 7 are electrically connected. A water storage tank 13 is fixedly connected to the right side of the vacuum pump 7. A cover 14 is fixedly connected to the top of the water storage tank 13. A water inlet 15 is opened on the rear side of the water storage tank 13. An electrical box 16 is fixedly connected to the rear side of the water storage tank 13. Specifically, the controller 12 on the top of the vacuum pump 7 is electrically connected to the vacuum pump 7 and can control the start and stop of the vacuum pump 7. The water tank 13 on the right side of the vacuum pump 7 can store water, and its top cover 14 can prevent dust. The water inlet 15 on the rear side is convenient for adding water. The electrical box 16 on the rear side of the water tank 13 can provide power.

[0021] Please see the appendix Figure 1 and attached Figure 2 An anti-electric shock door 17 is rotatably connected to the inner wall of the electrical box 16. A handle 18 is fixedly connected to the rear side of the anti-electric shock door 17. A support plate 19 is fixedly connected to the bottom of the vacuum pump 7. Multiple casters 20 are rotatably connected to the bottom of the support plate 19. An observation window 21 is fixedly connected to the right side of the waste bin 1. A pressure gauge 22 is fixedly connected to the left side of the vacuum pump 7. Specifically, the rotating anti-electric shock door 17 on the inner wall of the electrical box 16 can prevent electric shock, and the handle 18 on the back side makes it easy to open and close. The bottom support plate 19 of the vacuum pump 7 provides support, and the universal wheels 20 at the bottom of the support plate 19 make it easy to move the tool. The observation window 21 on the right side of the waste bin 1 can be used to check the amount of waste, and the pressure gauge 22 on the left side of the vacuum pump 7 can display the pressure.

[0022] Working principle: First, through manual observation, and then through manual control of the power output of the vacuum pump 7 by the controller 12, the high-pressure coke flushing is carried out during the boiler decoking process. By utilizing the free rotation of the rotating shaft 11 and the connection and fixation of the connecting rod 10, the sieve 9 is transported through the holes on the sieve 9 and the transmission through the hose 8, through the vacuum pump 7, and then into the interior of the waste bin 1. Then, the screening plate 5 on the inner wall of the waste bin 1 is used to separate the solids from the liquids. Finally, the waste liquid is discharged through the drain pin 4 on the drain outlet 3. Thus, there is no need to send people to clean the slag in the boiler, saving labor. The bottom of the boiler will not accumulate slag and block the outlet, and it is not easy to rust, which extends the service life of the boiler and makes the interior of the boiler cleaner after the coke flushing. First, the condition of the coke on the inner wall of the boiler is observed manually. Then, the boiler is controlled manually using a lever 206. With the fixing of the fixing nut 205 and the sealing of the sealing ring 207 and sealing column 203, it is prevented from being damaged by high pressure. The rotation of the lever 206 causes the connecting shaft 204 and the special gate valve 208 fixedly connected to it to rotate. The special shape of the gate valve 208 is used to control the water flow inside the telescopic pipe 202, thereby reducing damage to the inner wall of the boiler, reducing the cost of use, and improving practicality.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A coke removal tool for a thermal power plant boiler, comprising a waste bin (1), characterized in that: The waste bin (1) has a drain outlet (3) on its right side. A drain pin (4) is slidably connected to the inner wall of the drain outlet (3). A screening plate (5) is fixedly connected to the inner wall of the waste bin (1). A top cover (6) is rotatably connected to the top of the waste bin (1). A vacuum pump (7) is fixedly connected to the front side of the waste bin (1). A hose (8) is fixedly connected to the output end of the vacuum pump (7). A winnowing basket (9) is fixedly connected to the top of the hose (8). A connecting rod (10) is fixedly connected to both the left and right sides of the winnowing basket (9). A rotating shaft (11) is fixedly connected between adjacent connecting rods (10). An adjustment mechanism (2) is fixedly connected between adjacent rotating shafts (11). The adjustment mechanism (2) is used to adjust the water flow.

2. The decoking tool for a thermal power plant boiler according to claim 1, characterized in that: The adjusting mechanism (2) includes a nozzle (201). The outer wall of the nozzle (201) is fixedly connected to adjacent rotating shafts (11). A telescopic tube (202) is fixedly connected to the rear side of the nozzle (201). A sealing column (203) is fixedly connected to the inner wall of the telescopic tube (202). A connecting shaft (204) is rotatably connected to the inner wall of the sealing column (203). A fixing nut (205) is threadedly connected to the top of the connecting shaft (204). A handle (206) is rotatably connected to the bottom of the fixing nut (205). A sealing ring (207) is rotatably connected to the bottom of the handle (206). A gate valve (208) is fixedly connected to the bottom of the connecting shaft (204).

3. The decoking tool for a thermal power plant boiler according to claim 1, characterized in that: A controller (12) is fixedly connected to the top of the vacuum pump (7), and the controller (12) and the vacuum pump (7) are electrically connected.

4. The decoking tool for a thermal power plant boiler according to claim 1, characterized in that: A water storage tank (13) is fixedly connected to the right side of the vacuum pump (7), and a cover (14) is fixedly connected to the top of the water storage tank (13).

5. A descaling tool for a thermal power plant boiler according to claim 4, characterized in that: The water storage tank (13) has a water inlet (15) on its rear side, and an electrical box (16) is fixedly connected to the rear side of the water storage tank (13).

6. The coke removal tool for a thermal power plant boiler according to claim 5, characterized in that: An anti-electric shock door (17) is rotatably connected to the inner wall of the electrical box (16), and a handle (18) is fixedly connected to the rear side of the anti-electric shock door (17).

7. The coke removal tool for a thermal power plant boiler according to claim 1, characterized in that: The bottom of the vacuum pump (7) is fixedly connected to a support plate (19), and the bottom of the support plate (19) is rotatably connected to multiple casters (20).

8. The coke removal tool for a thermal power plant boiler according to claim 1, characterized in that: An observation window (21) is fixedly connected to the right side of the waste bin (1), and a pressure gauge (22) is fixedly connected to the left side of the vacuum pump (7).

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