Automatic soot blower for air pre-heater

Abstract

The utility model discloses an automatic soot blower of an air pre-heater, which comprises a cross rod, telescopic rods and an air pump, the air pump is fixedly arranged on the upper surface of the cross rod, the telescopic rods are fixedly arranged on the upper surfaces of the two ends of the cross rod, and an air pipe is fixedly arranged on the lower surface of the cross rod. A rectangular hanging frame is fixedly installed at the telescopic end of the telescopic rod and located below the transverse rod, and a sweeping piece is movably installed in the rectangular hanging frame. According to the automatic soot blowing device for the air pre-heater, through the mode that the cross rod, the rectangular hanging frame and the cleaning piece are matched with one another, after the soot blowing device cleans the air pre-heater, the telescopic rod controls the rectangular hanging frame to descend, when the rectangular hanging frame descends, the gear rotates under the action of the rack, the rotating gear drives the worm to rotate, and the cleaning piece is driven to clean the air pre-heater. The cleaning piece rotates under the cooperation of the worm and the worm gear, the rotating cleaning piece brushes and sweeps the surface of the air pipe through the brush, and therefore dust on the surface of the air pipe can be conveniently cleaned away.

Description

Technical Field

[0001] The utility model relates to the technical field of air preheaters, in particular to an automatic soot blowing device for air preheaters. Background Art

[0002] Air preheater, referred to as air preheater, is a heat exchanger that uses the exhaust heat of boilers and other equipment to preheat. Its function is to reduce the exhaust temperature of boilers and other equipment, improve thermal efficiency, make fuel easier to ignite, burn stably and improve combustion efficiency. Air preheater is mostly used in coal-fired power station boilers. After a certain period of use, dust will adhere to the surface of the pipe body of the air preheater. In order to ensure the cleanliness of the pipe body surface, a soot blowing device will be used to blow the air preheater.

[0003] However, the current automatic soot blowing device of the air preheater has some shortcomings. When the soot blowing device is blowing on the surface of the air preheater tube body, some dust will adhere to the surface of the air pipe. Since the soot blowing device is inserted into the interior of the air preheater, the dust attached to the surface of the air pipe cannot be easily cleaned. Utility Model Content

[0004] The main purpose of the utility model is to provide an automatic soot blowing device for an air preheater, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An automatic soot blowing device for an air preheater comprises a cross bar, a telescopic rod and an air pump, wherein the air pump is fixedly mounted on the upper surface of the cross bar, the telescopic rods are fixedly mounted on the upper surfaces of both ends of the cross bar, the air pipe is fixedly mounted on the lower surface of the cross bar, a rectangular hanging frame is fixedly mounted at the telescopic end of the telescopic rod and below the cross bar, and a cleaning piece is movably mounted inside the rectangular hanging frame.

[0007] Preferably, threaded holes are provided inside both ends of the cross bar, racks are fixedly installed on the lower surface of the cross bar and at both ends of the rectangular hanging frame, the air pump is connected to the air pipe, and the number of the air pipes is several.

[0008] Preferably, gears are movably installed on the two end surfaces of the rectangular hanging frame and near the front, grooves are provided on the inner front and rear surfaces of the rectangular hanging frame, a worm is movably installed in the groove in the front of the rectangular hanging frame, and both ends of the worm are fixed to the gears.

[0009] Preferably, collars are fixedly installed on the upper and lower parts of the rectangular hanging frame, and rotation grooves are provided on the inner surfaces of the collars.

[0010] Preferably, the cleaning part includes a movable ring, a brush, a worm gear and a rotating ring. The outer surface of the movable ring is fixed with a worm gear, the outer surface of the movable ring and the fixed sleeves above and below the worm gear are provided with a rotating ring, and the inner surface of the movable ring is fixedly installed with a brush.

[0011] Preferably, the cleaning piece is movably mounted in the sleeve, the rotating ring is movably embedded in the rotating groove, the air pipe is concentric with the cleaning piece, and the brush is in contact with the air pipe.

[0012] Preferably, the gear is meshed with the rack, and the worm is meshed with the worm wheel.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In the utility model, a cross bar, a rectangular hanging frame and a cleaning piece are arranged in a manner that cooperates with each other. When the soot blowing device completes cleaning the air preheater, the telescopic rod controls the rectangular hanging frame to descend. When the rectangular hanging frame descends, the gear rotates under the action of the rack, and the rotating gear drives the worm to rotate. The cleaning piece rotates in cooperation with the worm and the worm wheel. The rotating cleaning piece uses a brush to brush the surface of the air pipe, so that the dust on the surface of the air pipe can be easily cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the overall structural diagram of an automatic soot blowing device for an air preheater according to the utility model;

[0016] Figure 2 This is a rectangular hanging frame structure diagram of an automatic soot blowing device for an air preheater according to the utility model;

[0017] Figure 3 This utility model is an automatic soot blowing device for air preheater Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a structural diagram of the cleaning components of an automatic soot blowing device for an air preheater according to the utility model.

[0019] In the figure: 1. cross bar; 101. threaded hole; 102. rack; 2. air pump; 3. telescopic rod; 4. air pipe; 5. rectangular hanging frame; 501. gear; 502. groove; 503. collar; 504. rotating groove; 6. cleaning part; 601. movable ring; 602. worm gear; 603. brush; 604. rotating ring. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] like Figure 1-4 The figure shows an automatic soot blowing device for an air preheater, comprising a cross bar 1, a telescopic rod 3 and an air pump 2. The air pump 2 is fixedly mounted on the upper surface of the cross bar 1, the telescopic rods 3 are fixedly mounted on the upper surfaces of both ends of the cross bar 1, the air pipe 4 is fixedly mounted on the lower surface of the cross bar 1, a rectangular hanging frame 5 is fixedly mounted at the telescopic end of the telescopic rod 3 and below the cross bar 1, and a cleaning component 6 is movably mounted inside the rectangular hanging frame 5.

[0022] Threaded holes 101 are provided inside the two ends of the crossbar 1, and racks 102 are fixedly installed on the lower surface of the crossbar 1 and at both ends of the rectangular hanging frame 5. The air pump 2 is connected to the air pipe 4, and the number of air pipes 4 is several; gears 501 are movably installed on the two end surfaces of the rectangular hanging frame 5 and near the front, and grooves 502 are provided on the front and rear surfaces of the interior of the rectangular hanging frame 5. A worm is movably installed in the groove 502 in front of the rectangular hanging frame 5, and the two ends of the worm are fixed to the gear 501, and the rotating gear 501 can drive the worm to rotate; rings 503 are fixedly installed on the upper and lower parts of the interior of the rectangular hanging frame 5, and a rotating groove 504 is provided on the inner surface of the ring 503. The cooperation of the rotating groove 504 and the rotating ring 604 can assist the cleaning member 6 to flexibly move Rotation; the cleaning part 6 includes a movable ring 601, a brush 603, a worm gear 602 and a rotating ring 604. The outer surface of the movable ring 601 is fixedly sleeved with a worm gear 602, and the outer surface of the movable ring 601 and the fixed sleeves above and below the worm gear 602 are provided with a rotating ring 604. The inner surface of the movable ring 601 is fixedly installed with a brush 603, and the brush 603 can brush the surface of the trachea 4; the cleaning part 6 is movably installed in the ring 503, and the rotating ring 604 is movably embedded in the rotating groove 504. The trachea 4 is concentric with the cleaning part 6, and the brush 603 is in contact with the trachea 4; the gear 501 is engaged with the rack 102, and the worm is engaged with the worm gear 602. When the rectangular hanging frame 5 is raised or lowered, the gear 501 rotates under the action of the rack 102.

[0023] It should be noted that the utility model is an automatic soot blowing device for an air preheater. When in use, the threaded rod of the air preheater passes through the threaded hole 101 of the cross bar 1. When the threaded rod rotates, it drives the cross bar 1 to move. When the cross bar 1 moves, the air pump 2 supplies air to the air pipe 4, so that the air pipe 4 blows the pipe body of the air preheater. When the soot blowing device completes cleaning the air preheater, the telescopic rod 3 controls the rectangular hanging frame 5 to descend. When the rectangular hanging frame 5 descends, the gear 501 rotates under the action of the rack 102. The rotating gear 501 drives the worm to rotate, and the cleaning part 6 rotates in cooperation with the worm and the worm wheel 602. The rotating cleaning part 6 uses a brush 603 to brush the surface of the air pipe 4, so that the dust on the surface of the air pipe 4 can be easily cleaned.

[0024] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An automatic sootblowing device for an air preheater, characterized by: The invention comprises a cross bar (1), a telescopic rod (3) and an air pump (2); the air pump (2) is fixedly mounted on the upper surface of the cross bar (1); the telescopic rods (3) are fixedly mounted on the upper surfaces of both ends of the cross bar (1); the air pipe (4) is fixedly mounted on the lower surface of the cross bar (1); a rectangular hanging frame (5) is fixedly mounted at the telescopic end of the telescopic rod (3) and located below the cross bar (1); and a cleaning member (6) is movably mounted inside the rectangular hanging frame (5).

2. The automatic sootblowing device for an air preheater according to claim 1, characterized in that: Threaded holes (101) are provided inside the two ends of the crossbar (1), racks (102) are fixedly installed on the lower surface of the crossbar (1) and at both ends of the rectangular hanging frame (5), the air pump (2) is connected to the air pipe (4), and the number of the air pipes (4) is several.

3. The automatic sootblowing device for an air preheater according to claim 2, characterized in that: Gears (501) are movably mounted on both end surfaces of the rectangular hanging frame (5) and near the front. Grooves (502) are provided on the inner front and rear surfaces of the rectangular hanging frame (5). A worm is movably mounted in the groove (502) in the front of the rectangular hanging frame (5). Both ends of the worm are fixed to the gears (501).

4. The automatic sootblowing device for an air preheater according to claim 3, characterized in that: Sleeve rings (503) are fixedly installed on the upper and lower parts of the interior of the rectangular hanging frame (5), and a rotation groove (504) is provided on the inner surface of the sleeve rings (503).

5. The automatic sootblowing device for an air preheater according to claim 4, characterized in that: The cleaning member (6) comprises a movable ring (601), a brush (603), a worm gear (602) and a rotating ring (604); the outer surface of the movable ring (601) is fixedly provided with a worm gear (602); the outer surface of the movable ring (601) and the rotating ring (604) are fixedly provided above and below the worm gear (602); and the inner surface of the movable ring (601) is fixedly provided with a brush (603).

6. The automatic sootblowing device for an air preheater according to claim 5, characterized in that: The cleaning member (6) is movably mounted in the sleeve ring (503), the rotating ring (604) is movably embedded in the rotating groove (504), the air pipe (4) and the cleaning member (6) are concentric, and the brush (603) is in contact with the air pipe (4).

7. The automatic sootblowing device for an air preheater according to claim 6, characterized in that: The gear (501) is meshed with the rack (102), and the worm is meshed with the worm wheel (602).

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