Powerful pulse soot blower

Abstract

The utility model discloses a powerful pulse soot blower which comprises a furnace body and a soot blower body. The lower end of the soot blower is connected with an anti-backflow assembly, and a residual soot processing assembly is arranged on one side of the soot blower. The anti-backflow assembly comprises a soot blowing pipe communicated with the lower end of the soot blower, an extension pipe is detachably arranged at the lower end of the soot blowing pipe, and a cut-off valve is arranged between the soot blowing pipe and the extension pipe; a spoiler is arranged in the soot blowing pipe; an angle adjusting assembly is arranged in the end, extending into the furnace body, of the extension pipe. The cut-off valve is detachably and additionally arranged, cut-off can be conducted in time when soot blowing is stopped, high-temperature gas is prevented from flowing back, and the pulse generator is prevented from being damaged; the hollow cylindrical spiral spoiler is arranged, so that the pressure is sharply increased due to path reduction when the pulse gas passes through, and the pulse effect is improved; and the soot blowing branch pipes can rotate in the furnace body, and the soot blowing effect is better by combining with the inclined umbrella-shaped spray heads.

Description

Technical Field

[0001] The utility model relates to the technical field of soot blowers, in particular to a high-power pulse soot blower. Background Art

[0002] During the operation of coal-fired and oil-fired boilers, ash deposition generally occurs on the heating surface at the tail, increasing the flue gas resistance and the exhaust gas temperature, seriously affecting the normal operation of the boiler. The commonly used steam soot blowing technology at home and abroad is not suitable for removing the ash deposition at the boiler tail in many cases, and the ash removal effect is very unsatisfactory. The main reason is that steam soot blowing will increase the humidity of the flue gas, making it easier to cause ash deposition and blockage, and sometimes even exacerbating corrosion, especially for ash with a higher calcium or sulfur content.

[0003] The pulse soot blower is a new generation of ash removal technology with advanced performance. It uses a combustion gas pulse device to remove the ash deposition on the heating surface at the boiler tail, especially the ash deposition on the rotary air preheater and the electrostatic precipitator, with excellent effect, good economy, reliable operation, and simple operation and maintenance.

[0004] To ensure the structural strength during the operation of the pulse soot blower, usually its whole body and the soot blowing pipe extending into the furnace are fixedly connected to the furnace. However, the boiler has a large internal capacity, and the direction of the fixed soot blowing pipe cannot be changed, so the soot blowing effect needs to be improved. In addition, during actual operation in the prior art, the high-temperature gas in the furnace is likely to carry the residual furnace ash backflow, damaging components such as the soot blowing pipe and the pulse generator, and there is room for improvement. Content of the Utility Model

[0005] The utility model aims to solve the problems in the prior art that the soot blowing pipe is fixed and not flexible enough, and the technical problem that the high-temperature gas in the furnace is likely to carry the residual furnace ash backflow, and provides a high-power pulse soot blower.

[0006] To solve the above technical problems, the technical solution provided by the utility model is: a high-power pulse soot blower, including a furnace body and a soot blower; a backflow prevention component is connected and arranged at the lower end of the soot blower, and a residual ash treatment component is arranged on one side of the soot blower;

[0007] The backflow prevention component includes a soot blowing pipe communicated with the lower end of the soot blower, an extension pipe is detachably arranged at the lower end of the soot blowing pipe, and a cut-off valve is arranged between the soot blowing pipe and the extension pipe; the extension pipe is L-shaped, and the end of the extension pipe far away from the cut-off valve extends into the furnace body and is fixed by a flange at the connection with the furnace body;

[0008] A spoiler is arranged in the soot blowing pipe, the spoiler is a hollow cylindrical spiral plate, and the outer side of the spoiler is arranged along the inner side surface of the soot blowing pipe;

[0009] One end of the extension pipe extending into the furnace body is internally provided with an angle adjustment assembly. The angle adjustment assembly includes an annular accommodation groove provided in the extension pipe; a soot blowing branch pipe is rotatably provided in the extension pipe, and bearings capable of connecting with the soot blowing branch pipe are provided at both ends close to the accommodation groove; a motor is provided on the extension pipe, the output end of the motor extends into the extension pipe and is provided with a transmission rod, a driving bevel gear is provided at the end of the transmission rod, and a driven bevel gear capable of meshing with the driving bevel gear is provided on the outer side of the soot blowing branch pipe.

[0010] Preferably, an installation disk is provided at the upper end of the soot blower, and a plurality of assembly holes are provided on the installation disk; a plurality of support rods are provided on both the front and back of the soot blower, and connectors are provided at the ends of the support rods close to the furnace body, and the connectors are detachably connected to the furnace body through bolts.

[0011] Preferably, connecting flanges are provided at both ends of the cut-off valve, and the cut-off valve is detachably connected to the soot blowing pipe and the extension pipe respectively through the connecting flanges.

[0012] Preferably, one end of the soot blowing branch pipe extending out of the extension pipe is provided with an umbrella-shaped nozzle; the other end is in a slightly flared shape.

[0013] Preferably, the residual ash treatment assembly includes a box body provided on one side of the soot blower away from the furnace body, an exhaust fan is provided on the box body, the input end of the exhaust fan extends into the furnace body, and the output end extends into the box body; a grid plate is provided in the box body.

[0014] Preferably, an air outlet is provided at the lower end of the box body, and the air outlet is in a flared shape.

[0015] The advantages of the present utility model compared with the prior art are as follows:

[0016] 1. The traditional soot blowing pipe is divided into two sections, and a cut-off valve is detachably installed in the middle, which can be cut off in time when the soot blowing stops, avoiding the backflow of high-temperature gas and damaging the pulse generator;

[0017] 2. A hollow cylindrical spiral spoiler is arranged in the soot blowing pipe near the upper section, so that the pulse gas pressure increases sharply due to the reduced path when passing through, thereby improving the pulse effect;

[0018] 3. A soot blowing branch pipe is provided, and through the cooperation of the motor, bevel gears and bearings, the soot blowing branch pipe can rotate in the furnace body. Combined with the inclined umbrella-shaped nozzle, the soot blowing effect is better. Description of the Drawings

[0019] Figure 1 is the structural schematic diagram of the present utility model.

[0020] Figure 2 is the sectional structural schematic diagram of the soot blowing pipe and the spoiler of the present utility model.

[0021] Figure 3 It is a schematic structural diagram of the angle adjustment component of the present utility model.

[0022] Figure 4 It is a schematic structural diagram of the soot blowing branch pipe of the present utility model.

[0023] Figure 5 It is the present utility model Figure 3 The enlarged view at position A in it.

[0024] As shown in the figure: 1. Furnace body, 2. Soot blower, 3. Installation plate, 4. Assembly hole, 5. Support rod, 6. Connector, 7. Soot blowing pipe, 8. Extension pipe, 9. Cut-off valve, 10. Connecting flange, 11. Turbulence plate, 12. Accommodation groove, 13. Soot blowing branch pipe, 14. Bearing, 15. Motor, 16. Driving bevel gear, 17. Driven bevel gear, 18. Umbrella-shaped nozzle, 19. Box body, 20. Exhaust fan, 21. Grille plate, 22. Air outlet. Specific implementation mode

[0025] The following further elaborates on the present utility model in conjunction with the attached drawings.

[0026] Embodiment 1, in conjunction with the attached Figure 1 , a powerful pulse soot blower, including a furnace body 1 and a soot blower 2; an installation plate 3 is provided at the upper end of the soot blower 2, and a number of assembly holes 4 are provided on the installation plate 3. In specific cases, in addition to being able to be installed and fixed from the side, the soot blower 2 can also be installed through the installation plate 3 on the top surface, improving various fixing methods and making it flexible to use;

[0027] In conjunction with the attached Figure 1 , a number of support rods 5 are provided on both the front and back of the soot blower 2, and connectors 6 are provided at one end of the support rods 5 close to the furnace body 1. The connectors 6 are detachably connected to the furnace body 1 through bolts; facilitating the disassembly of the soot blower 2 by the connectors 6;

[0028] In conjunction with the attached Figure 1 , an anti-backflow component is connected to the lower end of the soot blower 2; the anti-backflow component includes a soot blowing pipe 7 communicated with the lower end of the soot blower 2, an extension pipe 8 is detachably provided at the lower end of the soot blowing pipe 7, and a cut-off valve 9 is provided between the soot blowing pipe 7 and the extension pipe 8. The cut-off valve 9 can cut off high-temperature gases, corrosive gases, etc. at the end of the operation to avoid backflow from damaging the internal components of the soot blower 2;

[0029] In conjunction with the attached Figure 1 , connecting flanges 10 are provided at both ends of the cut-off valve 9, and are respectively detachably connected to the soot blowing pipe 7 and the extension pipe 8 through the connecting flanges 10; thus facilitating the repair and replacement when the cut-off valve 9 is damaged;

[0030] In conjunction with the attached Figure 1, the extension pipe 8 is L-shaped. One end of the extension pipe 8 away from the cut-off valve 9 extends into the furnace body 1, and the connection with the furnace body 1 is fixed by a flange. Thus, when the soot blower 2 needs to be removed, the extension pipe 8 can also be removed from the furnace body 1;

[0031] Combined with the attached Figure 1 、 2 , a spoiler 11 is provided inside the soot blowing pipe 7. The spoiler 11 is a hollow cylindrical spiral plate, and the outside of the spoiler 11 is arranged along the inner side surface of the soot blowing pipe 7. So that the path of the high-pressure and high-speed air flow is reduced when passing through the spoiler 11, and the pressure increases instantaneously, improving the soot blowing effect;

[0032] Combined with the attached Figure 3 、 4 、5, one end of the extension pipe 8 extending into the furnace body 1 is internally provided with an angle adjustment assembly. The angle adjustment assembly includes an annular accommodation groove 12 provided inside the extension pipe 8, and the accommodation groove 12 is used to provide an operating space for the bevel gear components mentioned below;

[0033] Combined with the attached Figure 3 、 4 、5, a soot blowing branch pipe 13 is rotatably provided inside the extension pipe 8. Bearings 14 capable of connecting with the soot blowing branch pipe 13 are provided at both ends of the accommodation groove 12 and close to the ends. Without affecting the soot blowing branch pipe 13, the bearings 14 provide a supporting force for it. A motor 15 is provided on the extension pipe 8. The output end of the motor 15 extends into the extension pipe 8 and is provided with a transmission rod. A driving bevel gear 16 is provided at the end of the transmission rod. A driven bevel gear 17 capable of meshing with the driving bevel gear 16 is provided outside the soot blowing branch pipe 13. Through the transmission of the meshing driving bevel gear 16 and driven bevel gear 17, the soot blowing branch pipe 13 can be driven to rotate, so that the spraying angle can be adjusted;

[0034] Combined with the attached Figure 3 、 4 , one end of the soot blowing branch pipe 13 extending out of the extension pipe 8 is provided with an inclined umbrella-shaped nozzle 18 to increase the spraying area, and it is inclined. The spraying angle can be adjusted during rotation; the other end is in a slightly flared shape to reduce the air flow loss between it and the extension pipe 8;

[0035] Combined with the attached Figure 1 , a residual ash treatment assembly is provided on one side of the soot blower 2. The residual ash treatment assembly includes a box body 19 provided on the side of the soot blower 2 away from the furnace body 1. A suction fan 20 is provided on the box body 19. The input end of the suction fan 20 extends into the furnace body 1, and the output end extends into the box body 19. A grille plate 21 is provided inside the box body 19 for separating the furnace ash mixed in the gas. An air outlet 22 is provided at the lower end of the box body 19 to release the filtered gas. The air outlet 22 is in a flared shape.

[0036] Working principle of the utility model: The soot blower 2 ignites the mixed gas through the internal pulse generator to form a high-speed air flow. When the air flow passes through the soot blowing pipe 7, its advancing path and speed are changed by the spoiler 11, thereby further increasing the pressure and entering the extension pipe 8 and the soot blowing branch pipe 13 more quickly. When it is necessary to adjust the spraying angle, the motor 15 drives the driven bevel gear 17 to rotate through the transmission rod and the driving bevel gear 16, thereby driving the soot blowing branch pipe 13 to rotate to complete the adjustment and enabling spraying in a certain direction as required. After the operation is completed, the cut-off valve 9 is used to cut off the soot blowing pipe 7 and the extension pipe 8 to prevent the high-temperature corrosive gas from flowing back into the soot blower 2. At this time, the furnace body 1 is exhausted by the exhaust fan 20, and the residual furnace ash in the furnace body 1 can be drawn out, filtered, and collected.

[0037] The above describes the present utility model and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. In general, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative work without departing from the creative purpose of the present utility model, they shall fall within the protection scope of the present utility model.

Claims

1. A powerful pulse soot blower, comprising a furnace body (1) and a soot blower (2); characterized in that: A soot blower (2) is connected with a backflow prevention component at the lower end, and a residual ash treatment component is arranged on one side of the soot blower (2); The backflow prevention component includes a soot blowing pipe (7) communicated with the lower end of the soot blower (2). An extension pipe (8) is detachably arranged at the lower end of the soot blowing pipe (7). A cut-off valve (9) is arranged between the soot blowing pipe (7) and the extension pipe (8). The extension pipe (8) is L-shaped, and one end of the extension pipe (8) far away from the cut-off valve (9) extends into the furnace body (1), and the connection part with the furnace body (1) is fixed by a flange; A spoiler (11) is arranged in the soot blowing pipe (7). The spoiler (11) is a hollow cylindrical spiral plate, and the outer side of the spoiler (11) is arranged along the inner side surface of the soot blowing pipe (7); An angle adjustment component is arranged inside one end of the extension pipe (8) extending into the furnace body (1). The angle adjustment component includes an annular accommodation groove (12) arranged in the extension pipe (8). A soot blowing branch pipe (13) is rotatably arranged in the extension pipe (8). Bearings (14) capable of connecting with the soot blowing branch pipe (13) are arranged at both ends close to the accommodation groove (12). A motor (15) is arranged on the extension pipe (8). The output end of the motor (15) extends into the extension pipe (8) and is provided with a transmission rod, and a driving bevel gear (16) is arranged at the end of the transmission rod. A driven bevel gear (17) capable of meshing with the driving bevel gear (16) is arranged on the outer side of the soot blowing branch pipe (13).

2. The powerful pulse soot blower according to claim 1, characterized in that: An installation disc (3) is arranged at the upper end of the soot blower (2). A plurality of assembly holes (4) are arranged on the installation disc (3). A plurality of support rods (5) are arranged on both the front and back surfaces of the soot blower (2). Connecting pieces (6) are arranged at one ends of the support rods (5) close to the furnace body (1), and the connecting pieces (6) are detachably connected with the furnace body (1) through bolts.

3. A powerful pulse soot blower according to claim 1, characterized in that: Both ends of the cut-off valve (9) are provided with connecting flanges (10), and are detachably connected with the soot blowing pipe (7) and the extension pipe (8) respectively through the connecting flanges (10).

4. The powerful pulse soot blower according to claim 1, characterized in that: One end of the soot blowing branch pipe (13) extending out of the extension pipe (8) is provided with an inclined umbrella-shaped nozzle (18); the other end is in a slightly flared shape.

5. The powerful pulse soot blower according to claim 1, characterized in that: The residual ash treatment component includes a box body (19) arranged on one side of the soot blower (2) far away from the furnace body (1). An exhaust fan (20) is arranged on the box body (19). The input end of the exhaust fan (20) extends into the furnace body (1), and the output end extends into the box body (19). A grid plate (21) is arranged in the box body (19).

6. The powerful pulse soot blower according to claim 5, characterized in that: An air outlet (22) is arranged at the lower end of the box body (19), and the air outlet (22) is in a flared shape.

Images