Smoke and air duct equipment applied to power plant

Abstract

Smoke and air duct equipment applied to a power plant comprises a corrugated pipe, smoke and air pipes are connected to the two ends of the corrugated pipe, the smoke and air duct equipment further comprises an adjusting mechanism, the adjusting mechanism comprises upper supporting columns and lower supporting columns, the two upper supporting columns are fixed to the smoke and air pipes on the upper sides of the two ends of the corrugated pipe, and the two lower supporting columns are fixed to the smoke and air pipes on the lower sides of the two ends of the corrugated pipe. A telescopic guide pipe is arranged between the two upper supporting columns, the two ends of the telescopic guide pipe are hinged to the top ends of the upper supporting columns, and the telescopic guide pipe is sleeved with a spring; supporting blocks are fixed to the bottom ends of the two lower supporting columns correspondingly, a threaded rod is arranged between the two supporting blocks and arranged on the two supporting blocks in a sleeving mode, fixing nuts are arranged at the two ends of the threaded rod correspondingly, the straight direction of the assembly through hole is larger than the outer diameter of the threaded rod, and an acceleration mechanism used for accelerating smoke in the smoke and air pipeline is arranged on the portion, on the left side of the corrugated pipe, of the smoke and air pipe. The device is simple in structure and convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of smoke and dust transportation in power plants, and in particular relates to smoke and air duct equipment used in power plants. Background Art

[0002] The smoke and air duct is a pipe for exhausting smoke and taking in air from an industrial furnace. It is generally used on boilers in power plants to discharge smoke. In the prior art, since the smoke and air ducts are mostly straight pipes, bends are required in the workshop when they are used. At this time, it is necessary to customize a section of the bend according to the size of the bend, which not only affects the construction progress, but also increases the production cost. Therefore, the smoke and air duct in the prior art cannot adjust the bending angle according to the construction site, affecting the construction efficiency. Utility Model Content

[0003] In order to solve the technical problem that the existing smoke and air duct of a power plant cannot adjust the bending angle according to actual needs, the utility model provides a smoke and air duct equipment applied to a power plant, including a corrugated pipe that can be bent at a certain angle, both ends of the corrugated pipe are connected with the smoke and air duct, and also includes an adjustment mechanism for adjusting the curvature of the corrugated pipe. The adjustment mechanism includes two upper support columns with adjustable lengths and two lower support columns with adjustable lengths, the two upper support columns are fixed on the smoke and air duct on the upper side of both ends of the corrugated pipe, the two lower support columns are fixed on the smoke and air duct on the lower side of both ends of the corrugated pipe, and a telescopic guide pipe is arranged between the two upper support columns, both ends of the telescopic guide pipe are hinged to the top of the upper support column, and a spring is sleeved on the telescopic guide pipe, the spring is always kept in a compressed state, and under the action of the spring elastic force, the corrugated pipe can be kept in a certain state to reduce shaking. A support block is fixed to the bottom end of the two lower support columns, and a horizontal assembly through hole is opened on the two support blocks. A threaded rod is provided between the two support blocks, and the threaded rod is sleeved on the two support blocks. Both ends of the threaded rod are provided with fixing nuts for fixing. The straight line of the assembly through hole is larger than the outer diameter of the threaded rod. When adjusting the bending angle of the corrugated pipe, the threaded rod will tilt to a certain extent. An acceleration mechanism for accelerating the smoke in the smoke and air duct is provided on the smoke and air duct on the left side of the corrugated pipe.

[0004] The upper support column and the lower support column have the same structure and both include an outer support column. One end of the outer support column is fixed on the smoke and air duct, and the other end of the outer support column is provided with a guide groove, in which an inner support column is slidably assembled. The outer support column is provided with a number of evenly spaced fixing through holes from top to bottom, and the inner support column is provided with a fixing through hole, in which a pin shaft for fixing is provided, and the inner support column is fixed to the outer support column by the pin shaft, so that the length of the upper support column and the lower support column can be conveniently adjusted according to actual needs.

[0005] Preferably, the telescopic guide tube includes a support tube, the left end of the support tube is hinged on the upper support column, the right end of the support tube is sleeved with a support rod, the right end of the support rod is hinged on the upper support column at the right end of the corrugated tube, the left end of the support tube and the right end of the support rod are both provided with baffles, and the spring is arranged between the two baffles.

[0006] Preferably, the acceleration mechanism includes an inclined ventilation duct, the lower end of the ventilation duct is connected to the smoke and air duct, and a support beam is fixed in the ventilation duct for supporting purposes, a support shaft is rotatably mounted on the support beam, a motor is fixed on the support beam, a power output shaft of the motor is transmission-connected to the support shaft, and fan blades are provided at the other end of the support shaft. When the motor is started, the motor drives the fan blades to rotate, and the fan blades blow the smoke and dust in the smoke and air duct to move, thereby increasing the movement speed of the smoke and dust.

[0007] Preferably, the outer ends of the smoke and air ducts are provided with connecting flanges for connection.

[0008] The above solution has the following advantages:

[0009] The setting of the adjustment mechanism can adjust the bending angle of the corrugated pipe at any time according to the actual needs of the construction site, saving installation time and improving efficiency; the setting of the upper support column and the lower support column can adjust the length of each upper support column and the lower support column according to needs, so as to adjust the curvature of the corrugated pipe; the setting of the retractable guide tube, used in conjunction with the spring, can keep the corrugated pipe in a certain state and reduce shaking; the setting of the acceleration mechanism allows the fan blades to blow the smoke and dust in the smoke and air duct to move, thereby increasing the movement speed of the smoke and dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 for Figure 1 Enlarged view of part A.

[0012] Figure numerals: 1. bellows; 2. smoke and air duct; 3. adjustment mechanism; 4. acceleration mechanism; 21. connecting flange; 31. upper support column; 311. outer support column; 312. inner support column; 313. fixing through hole; 314. pin shaft; 32. lower support column; 33. telescopic guide tube; 331. baffle; 34. support tube; 35. support rod; 36. spring; 37. support block; 38. threaded rod; 39. fixing nut; 41. ventilation duct; 42. support beam; 43. support shaft; 44. motor; 45. fan blade. DETAILED DESCRIPTION

[0013] like Figure 1-2As shown, a smoke and air duct device used in a power plant includes a bellows 1 that can be bent at a certain angle, and both ends of the bellows 1 are connected to smoke and air ducts 2, and also includes an adjustment mechanism 3 for adjusting the curvature of the bellows 1. The adjustment mechanism 3 includes two upper support columns 31 with adjustable lengths and two lower support columns 32 with adjustable lengths, the two upper support columns 31 are fixed on the smoke and air ducts 2 on the upper sides of both ends of the bellows 1, and the two lower support columns 32 are fixed on the smoke and air ducts 2 on the lower sides of both ends of the bellows 1, and a telescopic guide tube 33 is provided between the two upper support columns 31, and both ends of the telescopic guide tube 33 are hinged to the top of the upper support column 31, and a spring 36 is sleeved on the telescopic guide tube 33, and the spring 36 is always kept in a compressed state. Under the elastic force of the spring 36, the bellows 1 can be kept in a certain state to reduce shaking. A support block 37 is fixed to the bottom end of the two lower support columns 32, and a horizontal assembly through hole is opened on the two support blocks 37. A threaded rod 38 is provided between the two support blocks 37, and the threaded rod 38 is sleeved on the two support blocks 37. Both ends of the threaded rod 38 are provided with fixing nuts 39 for fixing. The straight line of the assembly through hole is larger than the outer diameter of the threaded rod 38. When adjusting the bending angle of the bellows 1, the threaded rod 38 will tilt to a certain extent. The smoke and air duct 2 on the left side of the bellows 1 is provided with an acceleration mechanism 4 for accelerating the smoke in the smoke and air duct 2.

[0014] The upper support column 31 and the lower support column 32 have the same structure and both include an outer support column 311. One end of the outer support column 311 is fixed to the smoke and air duct 2. The other end of the outer support column 311 is provided with a guide groove, and an inner support column 312 is slidably assembled in the guide groove. The outer support column 311 is provided with a plurality of evenly spaced fixing through holes 313 from top to bottom. The inner support column 312 is provided with a fixing through hole 313, and a fixing pin 314 is provided in the fixing through hole 313 for fixing. The inner support column 312 is fixed to the outer support column 311 by the pin 314, and the length of the upper support column 31 and the lower support column 32 can be conveniently adjusted according to actual needs.

[0015] Preferably, the telescopic guide tube 33 includes a support tube 34, the left end of the support tube 34 is hinged on the upper support column 31, the right end of the support tube 34 is sleeved with a support rod 35, the right end of the support rod 35 is hinged on the upper support column 31 at the right end of the corrugated tube 1, the left end of the support tube 34 and the right end of the support rod 35 are both provided with a baffle 331, and the spring 36 is arranged between the two baffles 331.

[0016] Preferably, the acceleration mechanism 4 includes an inclined ventilation pipe 41, the lower end of the ventilation pipe 41 is connected to the smoke and air duct 2, and a support beam 42 is fixed in the ventilation pipe 41 for supporting purposes, a support shaft 43 is rotatably mounted on the support beam 42, a motor 44 is fixed on the support beam 42, a power output shaft of the motor 44 is transmission-connected to the support shaft 43, a fan blade 45 is provided at the other end of the support shaft 43, and the motor 44 is started, the motor 44 drives the fan blade 45 to rotate, and the fan blade 45 blows the smoke and dust in the smoke and air duct 2 to move, thereby increasing the movement speed of the smoke and dust.

[0017] Preferably, the outer ends of the smoke and air ducts 2 are provided with connecting flanges 21 for connection.

[0018] Usage process:

[0019] When the utility model is in use, the curvature of the bellows 1 is adjusted according to the actual needs of the construction site, and the length of the threaded rod 38 between the two lower support columns 32 is adjusted by the fixing nut. When the length of the threaded rod 38 between the two lower support columns 32 increases, the bellows 1 bends upward, and at this time the support rod 35 slides toward the inside of the support tube 34, and the spring 36 is compressed. When the length of the threaded rod 38 between the two lower support columns 32 decreases, the bellows 1 bends downward, and at this time the support rod 35 moves toward the outside of the support tube 34; when the curvature of the bellows 1 needs to be adjusted to a greater extent, the length of the upper support column 31 and the lower support column 32 needs to be changed, the pin shaft 314 needs to be removed, and after the position of the inner support column 312 is adjusted, the inner support column 312 is fixed to the outer support column 311 by the pin shaft 314.

[0020] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", "top", "bottom", "horizontal", "vertical", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A smoke and air duct device used in a power plant, comprising a bellows that can be bent at a certain angle, with smoke and air ducts connected to both ends of the bellows, characterized in that: It also includes an adjustment mechanism for adjusting the curvature of the bellows, the adjustment mechanism includes two upper support columns with adjustable lengths and two lower support columns with adjustable lengths, the two upper support columns are fixed to the smoke and air ducts on the upper sides of both ends of the bellows, the two lower support columns are fixed to the smoke and air ducts on the lower sides of both ends of the bellows, and a telescopic guide tube is provided between the two upper support columns, both ends of the telescopic guide tube are hinged to the top ends of the upper support columns, and a spring is sleeved on the telescopic guide tube; support blocks are fixed to the bottom ends of the two lower support columns, and horizontally arranged assembly through holes are opened on the two support blocks, a threaded rod is provided between the two support blocks, the threaded rod is sleeved on the two support blocks, and fixing nuts are provided at both ends of the threaded rod for fixing, and the straightness of the assembly through hole is larger than the outer diameter of the threaded rod, and an acceleration mechanism for accelerating smoke in the smoke and air duct is provided on the smoke and air duct on the left side of the bellows.

2. The smoke and air duct equipment used in a power plant according to claim 1, characterized in that: The upper support column and the lower support column have the same structure and both include an outer support column. One end of the outer support column is fixed on the smoke and air duct, and the other end of the outer support column is provided with a guide groove, in which an inner support column is slidably assembled. The outer support column is provided with a plurality of evenly spaced fixing through holes from top to bottom, and the inner support column is provided with a fixing through hole, in which a pin shaft for fixing is provided, and the inner support column is fixed to the outer support column by the pin shaft.

3. The smoke and air duct equipment used in a power plant according to claim 1, characterized in that: The telescopic guide tube includes a support tube, the left end of the support tube is hinged on the upper support column, the right end of the support tube is sleeved with a support rod, the right end of the support rod is hinged on the upper support column at the right end of the corrugated tube, the left end of the support tube and the right end of the support rod are both provided with baffles, and a spring is arranged between the two baffles.

4. The smoke and air duct equipment used in a power plant according to claim 1, characterized in that: The acceleration mechanism includes an inclined ventilation duct, the lower end of which is connected to the smoke and air duct, and a support beam is fixed in the ventilation duct for supporting purposes, a support shaft is rotatably mounted on the support beam, a motor is fixed on the support beam, a power output shaft of the motor is transmission-connected to the support shaft, and a fan blade is provided at the other end of the support shaft.

5. A smoke and air duct equipment used in a power plant according to any one of claims 1 to 4, characterized in that: The outer ends of the smoke and air ducts are provided with connecting flanges for connection purposes.

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