Tool convenient for dredging vertical air pre-heater pipeline

Abstract

The utility model discloses a tool convenient for dredging a vertical air pre-heater pipeline, which relates to the technical field of boilers and comprises a driving handle, a handle sleeve is fixedly connected to the middle of the driving handle, and a connecting sleeve is detachably connected to one side, far away from the driving handle, of the handle sleeve through a connecting nut in a threaded manner. The multiple connecting sleeves are arranged according to the length of an air pre-heater pipeline, the adjacent connecting sleeves are fixedly connected through connecting nuts, the connecting sleeves far away from the driving handle are fixedly connected with dredging end pipes through connecting nuts, and electric motors are fixedly installed in the dredging end pipes. An output shaft of the electric motor is fixedly connected with a dredging drill bit; when a boiler is overhauled, the problem of the length of the pipeline can be effectively solved, dredging is convenient and fast, and the problem of difficulty in dredging the pipeline of the air pre-heater is greatly solved.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers, in particular to a tool for dredging vertical air preheater pipelines. Background Art

[0002] A boiler is an energy conversion device. Energy input to the boiler includes chemical energy from the fuel and electrical energy, and the boiler outputs steam, high-temperature water, or an organic heat carrier with a certain amount of thermal energy. During boiler operation, an air preheater (also known as an air preheater) is used in conjunction with the boiler to improve the boiler's heat exchange performance and reduce heat loss. The air preheater transfers heat from the flue gas discharged from the boiler's tail flue through fins to the air entering the boiler, preheating the air to a certain temperature. However, with long-term use, the air preheater can become clogged. Traditionally, unclogging the air preheater required flushing with a high-pressure water jet. However, in the case of severe blockages, flushing is inefficient and cannot guarantee a quick and effective cleansing effect. Furthermore, the vertical height of the air preheater is less than 1.5 meters. When operators enter the air preheater during boiler shutdown for maintenance, long pipes are insufficient for vertical clearance, while short pipes are insufficient for long clearance, making the operation difficult. Utility Model Content

[0003] The purpose of the utility model is to provide a tool for dredging vertical air preheater pipes, so as to solve the technical problem that the dredging length of boiler air preheater pipes is insufficient.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] A tool for facilitating the unclogging of vertical air preheater pipelines, comprising a driving handle, a handle sleeve fixedly connected to the middle portion of the driving handle, a connecting sleeve detachably connected to the side of the handle sleeve away from the driving handle via a connecting nut thread, a plurality of connecting sleeves are provided according to the length of the air preheater pipeline, adjacent connecting sleeves are fixedly connected via connecting nuts, a unclogging end pipe is fixedly connected to the connecting sleeve away from the driving handle via a connecting nut, an electric motor is fixedly installed in the unclogging end pipe, and a unclogging drill bit is fixedly connected to the output shaft of the electric motor.

[0006] Preferably, a wireless controller is fixedly installed in the dredging end pipe, the wireless controller is connected to the electric motor, and a switch button wirelessly connected to the wireless controller is provided on the driving handle.

[0007] Preferably, the dredging drill bit includes a drill bit base, and a conical drill bit is fixedly provided on the lower end of the drill bit base.

[0008] Preferably, a drill bit slot is provided in the drill bit base, a limit plate is fixedly provided at the center of the drill bit slot, a number of guide sliders are slidably provided in the drill bit slot, a telescopic drill bit is fixedly connected to one end of the guide slider away from the limit plate, a through hole matching the telescopic drill bit is provided on the side wall of the drill bit base, a telescopic spring is provided on the outer periphery of the telescopic drill bit, one end of the telescopic spring is fixedly connected to the guide slider, and the other end of the telescopic spring is fixedly connected to the inner side wall of the drill bit base.

[0009] Preferably, the side wall of the dredging end tube is provided with a plurality of air outlet holes distributed in a circular array, an end tube fixing plate is fixedly provided inside the dredging end tube, a blowing assembly is installed at the lower end of the end tube fixing plate, an air intake duct is provided in the driving handle and the handle glove tube, an end air guide pipe connected to the blowing assembly is provided in the dredging end tube, a connecting pipe is provided in the connecting sleeve, and the connecting pipe connects the air intake duct and the end air guide pipe.

[0010] Preferably, the blowing assembly includes an electric push rod and a blowing seat, the electric push rod is fixedly mounted on the end tube fixing plate, the output end of the electric push rod is fixedly connected to a push rod connecting plate, the push rod connecting plate is fixedly provided with an air outlet baffle that matches the air outlet hole, the blowing seat is fixedly connected to the end air guide pipe fitting, and the blowing seat is connected to a plurality of blowing nozzles distributed in a circular array.

[0011] Preferably, the air intake duct includes an air intake pipe arranged in the driving handle, the end of the air intake pipe extends out of the end of the driving handle, an air intake connector is fixedly connected to the air intake pipe, the air intake connector is arranged in the handle glove and the end extends out of the end of the handle glove, and a tube fixing plate fixedly connected to the air intake connector is fixed in the handle glove.

[0012] Preferably, the connecting pipe fitting includes a connecting fixing plate fixedly arranged in the connecting sleeve, a connecting air pipe is fixedly connected to the connecting fixing plate, an upper joint is slidably connected to the upper end of the connecting air pipe, a lower joint is fixedly connected to the lower end of the connecting air pipe, a connecting spring is fixedly connected to the lower end of the upper joint, and the connecting spring is fixedly connected to the connecting fixing plate.

[0013] Preferably, the end air guide pipe includes an air guide end pipe fixedly connected to the end pipe fixing plate, the upper part of the air guide end pipe is slidably connected to an end pipe joint, the lower end of the air guide end pipe is fixedly connected to the blowing seat, the lower end of the end pipe joint is fixedly connected to an end pipe spring, and the end pipe spring is fixedly connected to the end pipe fixing plate.

[0014] Beneficial effects of the utility model:

[0015] (1) The utility model can effectively solve the problem of pipeline length when repairing the boiler, and the dredging is convenient and quick, which greatly solves the difficulty of dredging the air preheater pipeline.

[0016] (2) The air blowing assembly is set up to blow air into the air preheater pipe, and the inside of the pipe is cleaned by high-pressure gas. The auxiliary dredging drill bit ensures the cleaning effect of the inside of the pipe and ensures that the blockage inside the pipe is completely cleared.

[0017] (3) A telescopic spring is provided to reset the telescopic drill bit. When the drill base rotates rapidly under the action of the electric motor, the telescopic spring is compressed by the rotational force, so that the telescopic drill bit extends out of the drill base. The extended telescopic drill bit is used to clear the blockage inside the pipe, which can effectively increase the clearing range of the drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 It is a schematic structural diagram of the utility model as a whole;

[0020] Figure 2 It is a schematic cross-sectional structural diagram of the utility model as a whole;

[0021] Figure 3 This is a schematic cross-sectional view of the handlebar sleeve of the utility model;

[0022] Figure 4 This is a schematic cross-sectional view of the connecting sleeve of the utility model;

[0023] Figure 5 This is a structural diagram of the dredging end pipe of the utility model;

[0024] Figure 6 It is a structural schematic diagram of the utility model dredging drill bit.

[0025] In the figure: 1. Driving handle; 2. Handle sleeve; 21. Tube fixing plate; 3. Connecting sleeve; 31. Connecting fixing plate; 32. Connecting spring; 33. Connecting air pipe; 34. Lower joint; 35. Upper joint; 4. Clearing end pipe; 41. End pipe fixing plate; 42. End pipe spring; 43. End pipe joint; 44. Air guide end pipe; 45. Air outlet; 5. Clearing drill bit; 51. Drill bit base; 52. Conical drill bit; 53. Drill bit slide; 54. Limiting plate; 55. Guide slider; 56. Telescopic drill bit; 57. Telescopic spring; 6. Connecting nut; 7. Switch button; 8. Inlet duct; 81. Inlet pipe; 82. Inlet joint; 9. Blowing assembly; 91. Electric push rod; 92. Push rod connecting plate; 93. Air outlet baffle; 94. Blowing seat; 95. Blowing nozzle; 10. Electric motor; 11. Wireless controller DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figures 1-6 As shown, the utility model is a tool for facilitating the unclogging of vertical air preheater pipelines, comprising a driving handle 1, a handle sleeve 2 being fixedly connected to the middle of the driving handle 1, a connecting sleeve 3 being detachably connected to the handle sleeve 2 on the side away from the driving handle 1 through a connecting nut 6, a plurality of connecting sleeves 3 are provided according to the length of the air preheater pipeline, adjacent connecting sleeves 3 are fixedly connected through a connecting nut 6, a unclogging end pipe 4 is fixedly connected to the connecting sleeve 3 away from the driving handle 1 through a connecting nut 6, an electric motor 10 is fixedly installed in the unclogging end pipe 4, and a unclogging drill bit 5 is fixedly connected to the output shaft of the electric motor 10.

[0028] In an optional embodiment, a wireless controller 11 is fixedly installed in the dredging end pipe 4, the wireless controller 11 is connected to the electric motor 10, and a switch button 7 wirelessly connected to the wireless controller 11 is provided on the driving handle 1.

[0029] It should be noted that the switch button 7 is provided to wirelessly control the electric motor 10, thereby ensuring that the electric motor 10 can drive the dredging drill 5, and utilize the dredging drill 5 to dredge blockages inside the pipeline.

[0030] In an optional embodiment, the dredging drill bit 5 includes a drill bit base 51 , and a conical drill bit 52 is fixedly provided at the lower end of the drill bit base 51 .

[0031] It should be noted that the provision of the conical drill bit 52 can ensure that pipe blockages can be drilled through quickly, thereby achieving the effect of clearing the pipe.

[0032] In an optional embodiment, a drill bit slot 53 is provided in the drill bit base 51, a limit plate 54 is fixedly provided at the center of the drill bit slot 53, a number of guide sliders 55 are slidingly provided in the drill bit slot 53, and a telescopic drill bit 56 is fixedly connected to one end of the guide slider 55 away from the limit plate 54. The side wall of the drill bit base 51 is provided with a through hole matching the telescopic drill bit 56, and a telescopic spring 57 is provided on the outer periphery of the telescopic drill bit 56. One end of the telescopic spring 57 is fixedly connected to the guide slider 55, and the other end of the telescopic spring 57 is fixedly connected to the inner side wall of the drill bit base 51.

[0033] It should be noted that the telescopic spring 57 is provided to reset the telescopic drill bit 56. When the drill base 51 rotates rapidly under the action of the electric motor 10, the rotation force is used to compress the telescopic spring 57, so that the telescopic drill bit 56 extends out of the drill base 51. The extended telescopic drill bit 56 is used to clear the blockage inside the pipeline, which can effectively improve the clearing range of the drill bit.

[0034] In an optional embodiment, the side wall of the dredging end tube 4 is provided with a plurality of air outlet holes 45 distributed in a circular array, an end tube fixing plate 41 is fixedly provided inside the dredging end tube 4, a blowing assembly 9 is installed at the lower end of the end tube fixing plate 41, an air intake duct 8 is provided in the driving handle 1 and the handle glove tube 2, an end air guide pipe fitting connected to the blowing assembly 9 is provided in the dredging end tube 4, a connecting pipe fitting is provided in the connecting sleeve 3, and the connecting pipe fitting connects the air intake duct 8 and the end air guide pipe fitting.

[0035] It should be noted that by setting up the blowing component 9 to blow air into the air preheater pipeline, the inside of the pipeline is cleaned by high-pressure gas, and the auxiliary dredging drill bit 5 ensures the cleaning effect of the inside of the pipeline and ensures that the blockage inside the pipeline is completely cleaned.

[0036] In an optional embodiment, the blowing assembly 9 includes an electric push rod 91 and a blowing seat 94. The electric push rod 91 is fixedly mounted on the end tube fixing plate 41. The output end of the electric push rod 91 is fixedly connected to a push rod connecting plate 92. The push rod connecting plate 92 is fixedly provided with an air outlet baffle 93 that cooperates with the air outlet hole 45. The blowing seat 94 is fixedly connected to the end air guide pipe fitting. The blowing seat 94 is connected to a plurality of blowing nozzles 95 distributed in a circular array.

[0037] It should be noted that, by setting an electric push rod 91 to drive the air outlet baffle 93 to rise and fall and slide, the on-off control of the air outlet hole 45 is realized. When there is no need for blowing, the air outlet hole 45 is closed to prevent dust inside the pipeline from entering the dredging end pipe 4 and affecting the internal structure. When blowing and cleaning are required, the air outlet hole 45 is opened to ensure that the inside of the pipeline is blown, thereby improving the cleaning effect.

[0038] In an optional embodiment, the air intake duct 8 includes an air intake pipe 81 arranged in the driving handle 1, the end of the air intake pipe 81 extends out of the end of the driving handle 1, and an air intake connector 82 is fixedly connected to the air intake pipe 81. The air intake connector 82 is arranged in the handle glove 2 and the end thereof extends out of the end of the handle glove 2, and a tube fixing plate 21 fixedly connected to the air intake connector 82 is fixedly arranged in the handle glove 2.

[0039] It should be noted that the air inlet pipe 81 is connected to an external high-pressure gas source to provide gas for the blowing component 9, and the air inlet connector 82 cooperates with the upper connector 35 to achieve communication and delivery of the gas.

[0040] In an optional embodiment, the connecting pipe fitting includes a connecting fixing plate 31 fixedly arranged in the connecting sleeve 3, a connecting air pipe 33 is fixedly connected to the connecting fixing plate 31, an upper joint 35 is slidably connected to the upper end of the connecting air pipe 33, a lower joint 34 is fixedly connected to the lower end of the connecting air pipe 33, a connecting spring 32 is fixedly connected to the lower end of the upper joint 35, and the connecting spring 32 is fixedly connected to the connecting fixing plate 31.

[0041] It should be noted that the connection spring 32 is provided to provide elastic support for the upper joint 35, thereby ensuring the tightness of the connection between the upper joint 35 and the air intake joint 82 or the lower joint 34. When the handlebar sleeve 2 and the connecting sleeve 3 are connected through the connecting nut 6, the sealing conduction of the gas is ensured.

[0042] In an optional embodiment, the end air guide pipe includes an air guide end pipe 44 fixedly connected to the end pipe fixing plate 41, the upper part of the air guide end pipe 44 is slidably connected to the end pipe joint 43, the lower end of the air guide end pipe 44 is fixedly connected to the blowing seat 94, the lower end of the end pipe joint 43 is fixedly connected to the end pipe spring 42, and the end pipe spring 42 is fixedly connected to the end pipe fixing plate 41.

[0043] It should be noted that the provision of the end pipe spring 42 and the end pipe joint 43 ensures a stable connection with the lower joint 35 in the connecting sleeve 3, thereby ensuring a sealed conduction of the gas.

[0044] The working principle of the utility model is as follows: according to the length of the air preheater pipeline, a corresponding number of connecting sleeves 3 are selected, the connecting sleeves 3 are connected to each other, and the upper end is connected to the handle sleeve 2, and the lower end is connected to the dredging end pipe 4 through the connecting nut 6, and the dredging end pipe 4 is inserted into the air preheater pipeline that needs to be dredged, and the electric motor 10 is started by the switch button 7 to drive the dredging drill bit 5 to rotate to dredge the inside of the air preheater pipeline.

[0045] The above describes an embodiment of the present invention in detail. However, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.

Claims

1. A tool for dredging vertical air preheater pipes, characterized in that: The invention comprises a driving handle (1), wherein a handle sleeve (2) is fixedly connected to the middle of the driving handle (1), and a connecting sleeve (3) is detachably connected to the side of the handle sleeve (2) away from the driving handle (1) through a connecting nut (6) through a thread, wherein a plurality of connecting sleeves (3) are provided according to the length of the air preheater pipeline, and adjacent connecting sleeves (3) are fixedly connected through a connecting nut (6), and a dredging end pipe (4) is fixedly connected to the connecting sleeve (3) away from the driving handle (1) through a connecting nut (6), and an electric motor (10) is fixedly installed in the dredging end pipe (4), and a dredging drill bit (5) is fixedly connected to the output shaft of the electric motor (10).

2. A tool for dredging vertical air preheater pipes according to claim 1, characterized in that: A wireless controller (11) is fixedly installed in the dredging end pipe (4), and the wireless controller (11) is connected to the electric motor (10). A switch button (7) connected to the wireless controller (11) is provided on the driving handle (1).

3. A tool for dredging vertical air preheater pipes according to claim 1, characterized in that: The dredging drill bit (5) comprises a drill bit base (51), and a conical drill bit (52) is fixedly provided at the lower end of the drill bit base (51).

4. A tool for dredging vertical air preheater pipes according to claim 3, characterized in that: A drill bit chute (53) is provided in the drill bit base (51), a limit plate (54) is fixedly provided at the center of the drill bit chute (53), a plurality of guide slide blocks (55) are slidably provided in the drill bit chute (53), one end of the guide slide block (55) away from the limit plate (54) is fixedly connected to a telescopic drill bit (56), a through hole matching the telescopic drill bit (56) is provided on the side wall of the drill bit base (51), a telescopic spring (57) is sleeved on the outer periphery of the telescopic drill bit (56), one end of the telescopic spring (57) is fixedly connected to the guide slide block (55), and the other end of the telescopic spring (57) is fixedly connected to the inner side wall of the drill bit base (51).

5. The tool for dredging vertical air preheater pipes according to claim 1, characterized in that: The side wall of the dredging end tube (4) is provided with a plurality of air outlet holes (45) distributed in a circular array, an end tube fixing plate (41) is fixedly provided inside the dredging end tube (4), a blowing assembly (9) is installed at the lower end of the end tube fixing plate (41), an air intake duct (8) is provided inside the driving handle (1) and the handle sleeve (2), an end air guide pipe connected to the blowing assembly (9) is provided inside the dredging end tube (4), a connecting pipe is provided inside the connecting sleeve (3), and the connecting pipe connects the air intake duct (8) and the end air guide pipe.

6. A tool for dredging vertical air preheater pipes according to claim 5, characterized in that: The blowing assembly (9) comprises an electric push rod (91) and a blowing seat (94). The electric push rod (91) is fixedly mounted on the end tube fixing plate (41). The output end of the electric push rod (91) is fixedly connected to a push rod connecting plate (92). An air outlet baffle (93) matching the air outlet hole (45) is fixedly provided on the push rod connecting plate (92). The blowing seat (94) is fixedly connected to the end air guide pipe. A plurality of blowing nozzles (95) distributed in a ring array are connected to the blowing seat (94).

7. A tool for dredging vertical air preheater pipes according to claim 6, characterized in that: The air intake duct (8) comprises an air intake pipe (81) arranged in the driving handle (1), the end of the air intake pipe (81) extends out of the end of the driving handle (1), an air intake connector (82) is fixedly connected to the air intake pipe (81), the air intake connector (82) is arranged in the handle glove (2) and the end thereof extends out of the end of the handle glove (2), and a pipe fixing plate (21) fixedly connected to the air intake connector (82) is fixedly arranged in the handle glove (2).

8. The tool for dredging vertical air preheater pipes according to claim 7, characterized in that: The connecting pipe member comprises a connecting fixing plate (31) fixedly arranged in the connecting sleeve (3); a connecting air pipe (33) is fixedly connected to the connecting fixing plate (31); an upper joint (35) is slidably connected to the upper end of the connecting air pipe (33); a lower joint (34) is fixedly connected to the lower end of the connecting air pipe (33); a connecting spring (32) is fixedly connected to the lower end of the upper joint (35); and the connecting spring (32) is fixedly connected to the connecting fixing plate (31).

9. A tool for dredging vertical air preheater pipes according to claim 8, characterized in that: The end air guide pipe member comprises an air guide end pipe (44) fixedly connected to an end pipe fixing plate (41); an end pipe joint (43) is slidably connected to the upper portion of the air guide end pipe (44); a lower end of the air guide end pipe (44) is fixedly connected to an air blowing seat (94); a lower end of the end pipe joint (43) is fixedly connected to an end pipe spring (42); and the end pipe spring (42) is fixedly connected to the end pipe fixing plate (41).

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