Long-stroke telescopic gas pulse soot blower

Abstract

The utility model discloses a long-stroke telescopic gas pulse soot blower, and relates to the field of soot blowers. The device comprises a pulse tank arranged in a mounting frame, a supporting plate is horizontally and movably arranged at the top in the mounting frame, and the supporting plate and the pulse tank are fixedly mounted; the bottom of the pulse tank is communicated with a horizontally-arranged soot blowing pipe through a bent pipe, and the soot blowing pipe is communicated with a soot blowing head. A bearing frame is arranged at the bottom in the mounting frame, a supporting plate is arranged at the top end of the bearing frame in the length direction, and the top of the supporting plate abuts against the soot blowing pipe and is movably matched with the soot blowing pipe; an alignment plate is arranged on one side of the bearing frame, an alignment opening is formed in the outer wall of the alignment plate, and the soot blowing pipe penetrates through the alignment opening and is in sliding connection with the alignment opening. The soot blowing device has the advantages that the soot blowing pipe synchronously moves along with the pulse tank, and after the soot blowing pipe is inserted into the boiler and shock waves are generated in the pulse tank, the soot blowing pipe synchronously moves along with the pulse tank so as to be inserted into the boiler and generate shock waves in the pulse tank.

Description

Technical Field

[0001] The utility model relates to the field of soot blowers, in particular to the field of gas pulse soot blowers, and specifically to a long-stroke telescopic gas pulse soot blower. Background Art

[0002] A sootblower is an instrument used to remove soot from the heating surface of a boiler. A gas sootblower is one of the commonly used sootblowing equipment for boiler sootblowing. It mainly uses a mixture of combustible gas and air to release a huge shock wave when ignited to clean the soot in the boiler. However, the pulse tank and the sootblowing pipe of the commonly used gas sootblower are fixed in position, so the sootblowing cleaning area in the boiler is limited, the single-point sootblowing surface is small, and the sootblowing efficiency is low. When a long telescopic sootblower is used to clean the soot in the boiler, the pulse tank is fixed in position, and the sootblowing pipe is extended into the boiler to increase the sootblowing cleaning area in the boiler. However, because the pulse tank is fixed in position, the movement of the sootblowing pipe will gradually increase the distance from the pulse tank. After the shock wave is generated in the pulse tank, the shock wave moves in the sootblowing pipe, which will consume the shock wave, thereby reducing the cleaning effect in the boiler. Utility Model Content

[0003] The utility model provides a long-stroke telescopic gas pulse soot blower to solve the technical problem that the pulse tank cannot move, causing the pulse airflow to increase along the flow path of the pulse tube and reducing the pulse quality. The soot blowing tube moves synchronously with the pulse tank. After the soot blowing tube is inserted into the boiler and a shock wave is generated in the pulse tank, the soot blowing tube moves synchronously with the pulse tank to be inserted into the boiler and generate a shock wave in the pulse tank.

[0004] The technical solution adopted by the utility model is: to provide a long-stroke telescopic gas pulse soot blower, comprising a pulse tank arranged in an installation frame, a support plate is arranged on the top of the installation frame for horizontal movement, and the support plate is fixedly installed with the pulse tank; a horizontally arranged soot blowing pipe is connected to the bottom of the pulse tank by means of a bent pipe, and the soot blowing pipe is connected to a soot blowing head; a supporting frame is arranged at the bottom of the installation frame, a supporting plate is arranged on the top of the supporting frame along the length direction, the top of the supporting plate abuts against the soot blowing pipe and cooperates with the movement of the soot blowing pipe; an alignment plate is arranged on one side of the supporting frame, an alignment port is arranged on the outer wall of the alignment plate, the soot blowing pipe passes through the alignment port, and is slidably connected with the alignment port.

[0005] After the pulse tank and the support plate are fixedly installed, the support plate drives the pulse tank to move horizontally along the installation frame, and the pulse tank drives the soot blowing pipe connected to the bottom thereof to move so as to push it into the boiler. After the combustible gas is mixed and ignited in the pulse tank, a shock wave is generated to clean the accumulated ash in the boiler, and the soot blowing pipe moves along the boiler to increase the cleaning area, improve the soot cleaning efficiency and effect. When the soot blowing pipe moves, it passes through the alignment plate and is supported by the support plate. The alignment plate and the support plate increase the supporting position for the soot blowing pipe to avoid the soot blowing pipe from being offset and causing jamming during use, thereby improving the reliability of the soot blowing pipe.

[0006] To further optimize the technical solution, a mounting port is provided on the top of the support plate, the pulse tank is plugged into the mounting port, and the pulse tank is fixedly mounted on the support plate by means of a connector; the support plate is horizontally moved and mounted by means of a guide drive mechanism and a mounting frame.

[0007] After the pulse tank is inserted into the installation opening, it is fixedly installed with the support plate by means of a connecting piece, thereby preventing the pulse tank from shaking and improving the reliability of use. In addition, the support plate moves along the installation frame by means of a guide drive mechanism, and is flexible to use.

[0008] To further optimize the technical solution, the connecting piece includes a support evenly fixedly installed along the circumferential direction in the middle of the side wall of the pulse tank, the support abuts against the top of the support plate; bolts are threadedly connected in the support, and the bolts are threadedly connected to the support plate.

[0009] After the pulse tank is inserted into the installation opening, the supports distributed on the side walls are all in contact with the top surface of the support plate and supported by it, and after the supports and the support plate are fixed by bolts, the firmness of the assembly of the pulse tank and the support plate is improved, the assembly is simple, and the use is flexible and reliable.

[0010] To further optimize the technical solution, the guide drive mechanism includes a "U"-shaped guide rail arranged on both sides of the installation frame and a wheel assembly installed in conjunction with the guide rail, and the wheel assembly is fixedly installed on the bottom end of the support plate; a power element is fixedly installed on the top end of the support plate, and the power element is driven and installed by means of a transmission assembly and the installation frame.

[0011] After the pallet is assembled with the wheel assembly installed at its bottom and the guide rail installed in the mounting frame, the power element drives the pallet to move the wheel assembly along the guide rail to drive the pulse tank to move horizontally along the mounting frame. The guide rail guides and limits the wheel assembly, so that the horizontal movement of the pulse tank is smooth and stable.

[0012] To further optimize the technical solution, the wheel assembly includes a base fixedly mounted on the bottom end of the support plate, a support wheel is rotatably mounted inside the base, and the support wheel is movably mounted on the guide rail; a limit member is obliquely fixedly mounted on the outer wall of the base, and the limit member is slidably mounted on the guide rail.

[0013] The support wheel is installed through the base and the support plate, and the support wheel is placed in the guide rail to move along the guide rail, driving the support plate and the pulse tank to move horizontally. After the limiter installed obliquely on the outer wall of the base extends into the guide rail, it is slidably installed with the guide rail to support and limit the support wheel to prevent the support wheel from swinging in the guide rail and causing the pulse tank to shake, so that the horizontal movement of the soot blowing pipe is smooth and reliable to avoid jamming caused by the swing of the soot blowing pipe.

[0014] To further optimize the technical solution, the limiter includes a limit plate that is fixedly installed at an angle to the side wall of the base, the limit plate extends into the guide rail, a rubber layer is provided on the outer surface of the limit plate, and the limit plate is fitted to the inner wall of the guide rail through the rubber layer.

[0015] When the limit plate installed obliquely on the outer wall of the base extends into the guide rail, the limit plate fits with the inner wall of the guide rail through the rubber layer on its outer surface to reduce the movable clearance and prevent the support wheel from swinging. The rubber layer reduces the wear of the limit plate and scrapes and cleans the impurities in the guide rail to prevent the impurities from interfering with the operation of the support wheel, thereby improving safety in use.

[0016] To further optimize the technical solution, the transmission assembly includes a rack fixedly mounted on the mounting frame and a gear meshingly assembled with the rack; the output end of the power element is coaxially assembled with the gear.

[0017] The power element drives the support plate to move along the guide rail after the driving gear and the rack are meshed. The meshing of the gear and the rack makes the movement accuracy control of the pulse tank more precise and flexible to use.

[0018] To further optimize the technical solution, an arc-shaped supporting notch is provided on the top of the supporting plate, and supporting balls are evenly rolled along the arc surface in the supporting notch, the supporting balls are all in contact with the soot blowing pipe, and the soot blowing pipe and the supporting balls move in coordination.

[0019] The sootblowing pipe abuts against and is supported by the supporting balls distributed in the supporting notch, and the arc-shaped distribution of the supporting balls increases the contact area with the sootblowing pipe to limit the position of the sootblowing pipe, and the rolling installation of the supporting balls and the supporting notch reduces the movement resistance of the sootblowing pipe, which is flexible to use.

[0020] To further optimize the technical solution, alignment balls are uniformly rolled in the circumferential direction in the alignment port, the soot blowing pipe abuts against the alignment balls, and the soot blowing pipe and the alignment balls move in coordination.

[0021] The sootblowing pipe passes through the alignment port and abuts against the alignment balls distributed in the alignment port so as to be restricted by the alignment balls to avoid the sootblowing pipe from being deviated, thereby improving the accuracy of the sootblowing pipe movement and avoiding the sootblowing pipe from being stuck. The rolling installation of the alignment balls and the alignment port reduces the movement resistance of the sootblowing pipe.

[0022] The beneficial effects of the utility model are:

[0023] 1. The pulse tank is driven to move by the support plate to push the soot blowing pipe into the boiler. After the combustible gas is mixed in the pulse tank and ignited, a shock wave is generated and blown into the boiler through the soot blowing pipe. The soot blowing pipe moves along the boiler to increase the cleaning area of ​​the ash accumulated in the boiler. The interval between the pulse tank and the soot blowing pipe is fixed to reduce the loss of the shock wave and improve the cleaning efficiency and cleaning effect.

[0024] 2. The pulse tank is inserted into the installation port so that the support is in contact with the top surface of the support plate to support the pulse tank. After the support and the support plate are fixed by bolts, the firmness of the installation of the pulse tank and the support plate is improved. After the power element drives the gear and the rack to mesh, the support wheel moves along the guide rail, so that the support plate can move horizontally along the installation frame easily and smoothly. The limit plate obliquely installed on the base extends into the guide rail and fits with the inner wall of the guide rail to prevent the support wheel from shaking in the guide rail, thereby improving the stability of the movement of the pulse tank. The limit plate cleans the impurities in the guide rail to prevent the impurities from interfering with the movement of the support wheel, which is reliable to use.

[0025] 3. When the pulse tank drives the sootblowing pipe connected to its bottom to move, the sootblowing pipe passes through the alignment plate and abuts against the alignment balls distributed in the alignment port, thereby supporting and limiting the sootblowing pipe to prevent the sootblowing pipe from swinging during movement, so that the sootblowing pipe can be smoothly inserted into the boiler and is flexible to use. The rolling installation of the alignment balls and the alignment port reduces the resistance of the sootblowing pipe to movement and improves its flexibility of use.

[0026] 4. While the alignment plate supports the sootblowing tube, multiple support plates distributed on the support frame support the sootblowing tube at multiple points, so that the sootblowing tube moves smoothly, and the support plate abuts against the sootblowing tube through the support balls distributed in its supporting notch. The arc-shaped distribution of the support balls increases the contact area with the sootblowing tube to limit the position of the sootblowing tube and avoid the sootblowing tube from shaking, so that the sootblowing tube moves smoothly and stably, and the rolling installation of the support balls and the support plates reduces the movement resistance of the sootblowing tube, which is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of a long-stroke telescopic gas pulse soot blower of this embodiment;

[0028] Figure 2 This is a schematic diagram of the structure of the installation frame, guide rails and racks of this embodiment;

[0029] Figure 3 This is a schematic diagram of the structure of the support plate and the guide rail installation of this embodiment;

[0030] Figure 4 is a schematic structural diagram of the wheel assembly of this embodiment;

[0031] Figure 5 It is a structural schematic diagram of the pulse tank of this embodiment;

[0032] Figure 6 This is a schematic diagram of the structure of the support plate and the support bracket installed in this embodiment;

[0033] Figure 7 It is a structural schematic diagram of the installation of the alignment plate and the installation frame of this embodiment.

[0034] In the figure, 1. installation frame; 2. pulse tank; 3. support plate; 301. installation port; 302. base; 303. support wheel; 304. limit plate; 4. elbow; 5. soot blowing pipe; 501. soot blowing head; 6. support bracket; 7. support plate; 701. support notch; 702. support ball; 8. alignment plate; 801. alignment port; 802. alignment ball; 9. support; 10. bolt; 11. guide rail; 12. power element; 13. rack; 14. gear. DETAILED DESCRIPTION

[0035] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0036] Please see attached Figure 1 , Attachment Figure 3 , Attachment Figure 5 A long-stroke telescopic gas pulse soot blower comprises a pulse tank 2 arranged in an installation frame 1, a support plate 3 is arranged at the top of the installation frame 1 for horizontal movement, a mounting port 301 is arranged at the top of the support plate 3, the pulse tank 2 is plugged into the mounting port 301, and the pulse tank 2 is fixedly installed with the support plate 3 by means of a connecting piece, the connecting piece comprises a support 9 fixedly installed along the circumferential direction at the middle part of the side wall of the pulse tank 2, the support 9 abuts against the top end of the support plate 3, the support 9 supports the pulse tank 2, a bolt 10 is connected to the inner thread of the support 9, the bolt 10 is threadedly connected to the support plate 3, and the bolt 10 fixes the support 9 on the support plate 3 to enhance the firmness of the installation of the pulse tank 2 and the support plate 3 and improve the reliability of use;

[0037] Please see attached Figure 3 , Attachment Figure 4The guide drive mechanism includes a "U"-shaped guide rail 11 arranged on both sides of the installation frame 1 and a wheel assembly installed in conjunction with the guide rail 11. The wheel assembly includes a base 302 fixedly installed at the bottom end of the support plate 3. A support wheel 303 is rotatably installed in the base 302. The support wheel 303 is movably installed with the guide rail 11. A limiting member is fixedly installed on the outer wall of the base 302. The limiting member includes a limiting plate 304 fixedly installed on the side wall of the base 302. The limiting plate 304 extends into the guide rail 11. , and the outer surface of the limit plate 304 is provided with a rubber coating, and the limit plate 304 is fitted with the inner wall of the guide rail 11 through the rubber coating. The limit plate 304 prevents the support wheel 303 from shaking in the guide rail 11, so that the support plate 3 moves smoothly along the guide rail 11. The rubber coating improves the sealing performance of the limit plate 304 and the guide rail 11, reduces the wear of the limit plate 304, and the limit plate 304 moves with the wheel assembly to clean the inside of the guide rail 11, so as to prevent foreign particles from interfering with the movement of the wheel assembly and improve the reliability of use;

[0038] Please see attached Figure 3 A power element 12 is fixedly installed on the top of the support plate 3. The power element 12 is driven and installed with the installation frame 1 by means of a transmission assembly. The transmission assembly includes a rack 13 fixedly installed with the installation frame 1 and a gear 14 meshing with the rack 13. The output end of the power element 12 is coaxially assembled with the gear 14. The power element 12 can use a stepper motor. After the power element 12 drives the gear 14 to rotate, the gear 14 meshes with the rack 13, driving the support plate 3 to move along the installation frame 1, and driving the soot blowing pipe 5 to move through the pulse tank 2, so as to be inserted into the boiler for soot cleaning operations;

[0039] Please see attached Figure 1 , Attachment Figure 5-7The bottom of the pulse tank 2 is connected with a horizontally arranged sootblowing pipe 5 by means of a curved pipe 4, and the sootblowing pipe 5 is connected with a sootblowing head 501. A support bracket 6 is arranged at the bottom of the mounting frame 1, and an alignment plate 8 is arranged on one side of the support bracket 6. An alignment port 801 is arranged on the outer wall of the alignment plate 8. The sootblowing pipe 5 passes through the alignment port 801, and the alignment port 801 supports the sootblowing pipe 5. Alignment balls 802 are arranged in the alignment port 801 to roll evenly along the circumferential direction, and the alignment balls 802 abut against the sootblowing pipe 5. When the pulse tank 2 drives the sootblowing pipe 5 to move, the sootblowing pipe 5 drives the alignment balls 802 to roll in the alignment port 801 to reduce the movement resistance of the sootblowing pipe 5, and the top of the support bracket 6 is arranged along the length direction. There are multiple support plates 7, the top of the support plate 7 is in contact with the soot blowing tube 5, so as to provide multi-point support for the soot blowing tube 5, to avoid deviation and jamming of the soot blowing tube 5, the support plate 7 moves along the support plate 7 with the movement of the soot blowing tube 5, and the bottom of the support plate 7 is provided with wheels, so that it can move smoothly and labor-savingly along the support plate 3, and an arc-shaped supporting notch 701 is provided on the top of the support plate 7, and supporting balls 702 are evenly rolled along the arc surface in the supporting notch 701, and the supporting balls 702 are all in contact with the soot blowing tube 5, and the supporting notch 701 and the supporting balls 702 limit the swing of the soot blowing tube 5, thereby improving the stability of the movement of the soot blowing tube 5 and reducing the resistance of the movement of the soot blowing tube 5, and the use is flexible;

[0040] The working principle of the long-stroke telescopic gas pulse soot blower is as follows: after the pulse tank 2 is inserted into the installation port 301, the support 9 abuts against the top surface of the support plate 3 to support the pulse tank 2, and the support 9 and the support plate 3 are fixed with bolts 10 to firmly fix the pulse tank 2 and the support plate 3, and after the gas source is connected to the pulse tank 2 through the pipeline, the power element 12 is started to drive the gear 14 and the rack 13 to drive the support plate 3 to move along the installation frame 1, and the support plate 3 drives the support wheel 303 through the base 302. Move along the guide rail 11, the guide rail 11 guides and limits the movement of the support plate 3, so that the pulse tank 2 moves horizontally, and the limit plate 304 installed obliquely on the outer wall of the base 302 extends into the guide rail 11, and the limit plate 304 fits with the inner wall of the guide rail 11 through the rubber layer on its surface to prevent the support wheel 303 from shaking, so that the support plate 3 and the pulse tank 2 move horizontally smoothly, and the limit plate 304 scrapes and cleans the impurities in the guide rail 11 to avoid interfering with the movement of the support wheel 303, thereby improving the stability and reliability of use;

[0041] When the pulse tank 2 moves, it drives the sootblowing pipe 5 connected to its bottom to move horizontally. One end of the sootblowing pipe 5 passes through the alignment port 801 and is abutted and restricted by the alignment balls 802 distributed in the alignment port 801, so as to avoid the sootblowing pipe 5 from having a swinging clearance and improve the moving operation accuracy of the sootblowing pipe 5. The rolling installation of the alignment balls 802 and the alignment plate 8 reduces the moving resistance of the sootblowing pipe 5. The sootblowing pipe 5 is supported at multiple points by the support plate 7 to improve the stability of the movement of the sootblowing pipe 5. The support plate 7 is abutted and supported by the support balls 702 distributed in the arc-shaped supporting notch 701 to support the sootblowing pipe 5. The support balls 702 are distributed along the arc of the supporting notch 701 to limit the sootblowing pipe 5 to avoid the sootblowing pipe 5 from swinging, further improve the moving stability of the sootblowing pipe 5, avoid the sootblowing pipe 5 from getting stuck, and improve the smoothness and safety of the sootblowing operation of the sootblowing pipe 5.

[0042] When the pulse tank 2 moves, the moving position of the pulse tank 2 is controlled by installing a proximity switch on the mounting frame 1. When the soot blowing pipe 5 is pushed into the boiler, the pulse tank 2 triggers the proximity switch, so that the combustible gas is filled into the pulse tank 2 through the pipeline, and a shock wave is generated after being mixed and ignited in the pulse tank 2. The shock wave is input into the soot blowing pipe 5 and blown into the boiler through the soot blowing head 501, so that the shock wave acts on the soot accumulated on the heating surface of the boiler to fall off. After the combustible gas is mixed and ignited in the pulse tank 2, the power element 12 drives the gear 14 to continue to mesh with the rack 13, driving the pulse tank 2 to move, so as to push the soot blowing pipe 5 into the boiler, thereby increasing the soot blowing cleaning area of ​​the boiler. After the pulse tank 2 drives the soot blowing pipe 5 to move to the end in the mounting frame 1, the proximity switch is triggered again, the power element 12 stops driving, and changes the driving direction of the gear 14, so that the pulse tank 2 drives the soot blowing pipe 5 to move to the original position, so as to perform the soot blowing operation again, which is flexible and smooth to use.

Claims

1. A long-stroke telescopic gas pulse sootblower, comprising a pulse tank (2) arranged in a mounting frame (1), characterized in that: A support plate (3) is horizontally movable at the top of the installation frame (1), and the support plate (3) is fixedly installed with the pulse tank (2); a horizontally arranged soot blowing pipe (5) is connected to the bottom of the pulse tank (2) by means of a bent pipe (4), and the soot blowing pipe (5) is connected to a soot blowing head (501); a support frame (6) is arranged at the bottom of the installation frame (1), a support plate (7) is arranged at the top of the support frame (6) along the length direction, the top of the support plate (7) is in contact with the soot blowing pipe (5), and is movably matched with the soot blowing pipe (5); an alignment plate (8) is arranged on one side of the support frame (6), an alignment port (801) is arranged on the outer wall of the alignment plate (8), and the soot blowing pipe (5) passes through the alignment port (801) and is slidably connected with the alignment port (801).

2. A long-stroke telescopic gas pulse soot blower according to claim 1, characterized in that: The top of the support plate (3) is provided with a mounting opening (301), the pulse tank (2) is plugged into the mounting opening (301), and the pulse tank (2) is fixedly mounted on the support plate (3) by means of a connecting piece; the support plate (3) is horizontally movable and mounted by means of a guide drive mechanism and a mounting frame (1).

3. A long-stroke telescopic gas pulse soot blower according to claim 2, characterized in that: The connecting member comprises a support (9) which is evenly fixedly installed along the circumferential direction at the middle of the side wall of the pulse tank (2), and the support (9) is in contact with the top end of the support plate (3); bolts (10) are threadedly connected inside the support (9), and the bolts (10) are threadedly connected to the support plate (3).

4. The long-stroke telescopic gas pulse sootblower according to claim 2, characterized in that: The guide drive mechanism comprises U-shaped guide rails (11) arranged on both sides of the installation frame (1) and a wheel assembly matched with the guide rails (11), wherein the wheel assembly is fixedly mounted on the bottom end of the support plate (3); a power element (12) is fixedly mounted on the top end of the support plate (3), and the power element (12) is driven and mounted by means of a transmission assembly and the installation frame (1).

5. A long-stroke telescopic gas pulse soot blower according to claim 4, characterized in that: The wheel assembly comprises a base (302) fixedly mounted on the bottom end of the support plate (3); a support wheel (303) is rotatably mounted inside the base (302); the support wheel (303) and the guide rail (11) are movably mounted; a limit member is obliquely fixedly mounted on the outer wall of the base (302); the limit member and the guide rail (11) are slidably mounted.

6. A long-stroke telescopic gas pulse sootblower according to claim 5, characterized in that: The limiting member comprises a limiting plate (304) which is fixedly installed at an angle to the side wall of the base (302); the limiting plate (304) extends into the guide rail (11); a rubber coating is provided on the outer surface of the limiting plate (304); and the limiting plate (304) is fitted to the inner wall of the guide rail (11) through the rubber coating.

7. The long-stroke telescopic gas pulse sootblower according to claim 4, characterized in that: The transmission assembly comprises a rack (13) fixedly mounted on the mounting frame (1) and a gear (14) meshingly assembled with the rack (13); the output end of the power element (12) is coaxially assembled with the gear (14).

8. The long-stroke telescopic gas pulse sootblower according to claim 1, characterized in that: The top of the support plate (7) is provided with an arc-shaped supporting notch (701), and supporting balls (702) are evenly rolled along the arc surface inside the supporting notch (701), the supporting balls (702) are all in contact with the soot blowing pipe (5), and the soot blowing pipe (5) and the supporting balls (702) are moved in coordination.

9. The long-stroke telescopic gas pulse sootblower according to claim 1, characterized in that: Alignment balls (802) are evenly rolled in the circumferential direction in the alignment opening (801), the soot blowing pipe (5) abuts against the alignment balls (802), and the soot blowing pipe (5) and the alignment balls (802) move in coordination.

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