Rake type soot blower

Abstract

The utility model relates to a rake type soot blower, and belongs to the technical field of soot blowers, the rake type soot blower comprises a soot blower support and a walking air supply mechanism connected in the soot blower support through a fixing plate, the walking air supply mechanism is used for inputting a soot blowing air source and providing a walking sliding rail structure at the same time, and one end of the walking air supply mechanism is further communicated with a straight pipe. According to the rake type soot blower, the supporting frame is arranged at the front end of the soot blower support in a sliding mode, and the telescopic pipe and the rake type pipe are installed on the front side and the rear side of the supporting frame in a sliding mode and communicate with each other, so that the front end of the cover rake type soot blower can stretch out and draw back towards the inner side, and adjustability is better compared with an existing integrated welding rake type pipe; the problem that the rake type pipe is inconvenient to disassemble due to the too large width in the disassembling process can be avoided, meanwhile, the connecting frame is arranged to synchronously control the telescopic pipes on the two sides, the gear mechanism is arranged to control the telescopic pipes on the two sides to synchronously stretch out and draw back, telescopic adjustment can be conveniently conducted on the rake type soot blower, and the disassembling convenience of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a soot blower technical field, concretely is a harrow type soot blower. BACKGROUND

[0002] The harrow type soot blower is a device for cleaning the dust and dirt accumulated inside the boiler, heat exchanger and other industrial equipment, which blows the accumulated ash away by air flow or water flow, thereby maintaining the efficient operation of the equipment.

[0003] Among them, the harrow type soot blower is composed of a harrow type pipe located in the boiler, a support located outside the boiler and a walking gas supply mechanism for controlling the extension and contraction of the harrow type pipe, the harrow type soot blower is vertically extended from the original single pipe structure to multiple branch pipes, greatly expanding the cleaning area, improving the single-time soot blowing coverage rate and soot blowing effect.

[0004] However, due to the opening of the soot blowing port for the harrow type soot blower to be erected, the support is fixed to the outside of the boiler and the harrow type pipe is inserted into the boiler for cleaning, the front-end pipe of the harrow type soot blower is commonly an integral welded pipe, which is limited by the excessive width of the front end of the harrow type pipe and is difficult to be taken out from the soot blowing port, thus making it more troublesome to disassemble the harrow type soot blower from the boiler, and the front-end pipe of the harrow type soot blower needs to be separated from the walking gas supply mechanism and then taken out from the remaining outlets, therefore, the present application designs a harrow type soot blower to solve this technical defect. UTILITY MODEL CONTENTS

[0005] In view of the shortcomings of the prior art, the utility model provides a harrow type soot blower, which has the advantages of convenient telescopic improvement of the front-end structure of the harrow type soot blower, convenient integrated disassembly of the harrow type soot blower and reduction of the trouble of gas path disassembly and connection.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a harrow type soot blower, comprising a soot blower support and a walking gas supply mechanism connected in the soot blower support by a fixed plate, wherein the walking gas supply mechanism is used for inputting soot blowing gas source and simultaneously providing a walking slide rail structure;

[0007] One end of the walking gas supply mechanism is also connected with a straight pipe, one end of the straight pipe away from the walking gas supply mechanism is connected with a harrow type pipe, and the end of the soot blower support is also movably installed with a support frame, one end of the harrow type pipe perpendicular to the straight pipe is slidably connected with an extension pipe, and the front and rear sides of the support frame are both slidably installed with a connecting frame;

[0008] Among them, the connecting frame is composed of a rack vertically welded at one end of the L-shaped frame, and the front and rear sidewalls of the support frame are provided with slots for the rack of the connecting frame to slide through.

[0009] The above technical scheme can realize the telescopic connection of the rake type pipe front end, facilitate the removal of the rake type soot blower from the boiler without dismounting the rake type pipe after changing the width of the rake type pipe front end.

[0010] As a preferred technical scheme of the utility model, the rake type pipe penetrates through the support frame to maintain stability in the telescopic state.

[0011] The telescopic pipes are continuously distributed in the axial direction of the straight pipe, and the telescopic pipes are all penetrated and slidably connected to the support frame.

[0012] The above technical scheme can improve the extension and retraction stability of the telescopic pipe relative to the rake type pipe through the support frame.

[0013] As a preferred technical scheme of the utility model, the top of the support frame is further fixedly installed with a mounting rack, and the mounting rack is loaded with a gear mechanism for synchronously driving the two racks.

[0014] The gear mechanism comprises a servo motor fixedly installed on the mounting rack and serving as a driving source, two gears rotationally connected below the mounting rack, wherein the shaft centers of the two gears are fixedly provided with pulleys rotationally connected to the mounting rack, the two gears are respectively and mutually meshed with the rack tooth surfaces on the two connecting racks, a transmission chain is sleeved between the two pulleys, and the output shaft of the servo motor is fixedly connected with one of the pulleys.

[0015] The above technical scheme can facilitate the external control of the synchronous action of the telescopic pipes on the front and rear sides by the user.

[0016] As a preferred technical scheme of the utility model, the outer wall of the telescopic pipe is fixedly provided with limiting strips in a cross shape, the outer wall of the support frame is fixedly installed with a positioning plate, and the positioning plate and the through hole in the support frame correspond to the outer shape of the telescopic pipe.

[0017] The above technical scheme can hinder the rotation of the telescopic pipe relative to the rake type pipe after the extension of the telescopic pipe.

[0018] As a preferred technical scheme of the utility model, the one end surface of the soot blower support extending into the boiler is fixedly installed with sliding strips arranged in a rectangular space, the upper and lower ends of the support frame are both provided with a sink groove corresponding to the sliding strips, and the sliding strips are slidably connected to the sink grooves.

[0019] The above technical scheme can improve the sliding extension stability of the support frame relative to the soot blower support.

[0020] As a preferred technical scheme of the utility model, the L-shaped frame part of the connecting frame and the plurality of telescopic pipes are connected with each other.

[0021] By adopting the above technical scheme, the plurality of telescopic pipes on one side can be conveniently controlled synchronously by a single connecting frame.

[0022] As a preferred technical scheme of the utility model, the telescopic pipe is fixedly installed with a blocking cover on the end away from the harrow pipe, the blocking cover is rotatably installed with an adjusting pin, and the adjusting pin is screw-connected to the connecting frame.

[0023] By adopting the above technical scheme, the distance between the independent single telescopic pipe and the connecting frame can be conveniently adjusted.

[0024] As a preferred technical scheme of the utility model, the support frame is a U-shaped frame with an upper opening and a lower opening, and the two side inner walls of the support frame are fixedly connected with a reinforcing plate.

[0025] By adopting the above technical scheme, the structural integrity of the support frame can be strengthened.

[0026] Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

[0027] The harrow-type soot blower is characterized in that the front end sliding support frame of the soot blower support is provided, the telescopic pipe and the harrow pipe are slidably installed on the front and rear sides of the support frame and are in communication with each other, the front end of the harrow-type soot blower can be retracted towards the inside, the adjustable nature of the integrated welded harrow pipe is better, the problem that the harrow pipe is too wide to be removed inconveniently during the removal process can be avoided, the connecting frame is arranged to synchronously control the telescopic pipes on the two sides, the gear mechanism is arranged to control the synchronous retraction of the telescopic pipes on the two sides, the telescopic adjustment of the harrow-type soot blower can be conveniently realized, and the removal convenience of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a perspective view of the overall structure of the utility model;

[0029] Figure 2 It is a perspective view of the front end structure of the soot blower of the utility model;

[0030] Figure 3 It is a perspective view of the movable connection of the support frame and the connecting frame of the utility model;

[0031] Figure 4 It is a perspective view of the structure of the gear mechanism of the utility model.

[0032] In the figure: 1, soot blower support; 2, walking air supply mechanism; 3, straight pipe; 4, support frame; 401, reinforcing plate; 402, sink; 403, slide bar; 5, rake pipe; 501, telescopic pipe; 502, limiting strip; 503, plugging cover; 504, positioning plate; 6, connecting frame; 601, rack; 602, adjusting pin; 7, mounting frame; 8, servo motor; 9, gear; 10, pulley; 11, transmission chain. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0034] Please refer to Figure 1 In the embodiment, the rake soot blower comprises a soot blower support 1 and a walking air supply mechanism 2 connected to the soot blower support 1 by a fixed plate. The walking air supply mechanism 2 is used for inputting a soot blowing gas source and simultaneously providing a walking slide rail structure. The walking air supply mechanism 2 is further connected to a straight pipe 3 at one end. The straight pipe 3 is connected to a rake pipe 5 at the end away from the walking air supply mechanism 2.

[0035] It can be understood that the pipe end diameter of the walking air supply mechanism 2 is smaller than the diameter of the straight pipe 3. Therefore, the end of the straight pipe 3 can be sleeved on the end of the walking air supply mechanism 2 to be extended, so that the rake pipe 5 connected to the other end of the straight pipe 3 can extend into the boiler.

[0036] In the application, one end of the soot blower support 1 is attached to the outer wall of the boiler and is bolted and fixed. Therefore, the soot blower can be erected outside the boiler. At this time, the rake pipe 5 extends into the boiler through the soot blowing port. The straight pipe 3 is extended relative to the pipe end of the walking air supply mechanism 2 by the electric slide rail in the walking air supply mechanism 2. Therefore, the rake pipe 5 can blow soot back and forth in the boiler.

[0037] Please refer to Figures 1 to 2 In the embodiment, the end of the soot blower support 1 is further movably installed with a support frame 4. The rake pipe 5 penetrates through the support frame 4 to maintain the stability in the telescopic state. The straight pipe 3 is connected to the telescopic pipe 501 at one end. The telescopic pipe 501 is continuously distributed in the axial direction of the straight pipe 3. The telescopic pipe 501 penetrates and is movably connected to the support frame 4.

[0038] The support frame 4 is a U-shaped frame with an upper opening and a lower opening. The reinforcing plate 401 is fixedly connected between the inner walls of the two sides of the support frame 4 to strengthen the structural integrity of the support frame 4.

[0039] It should be noted that the outer wall of the telescopic pipe 501 is fixed with the limiting strips 502 in cross shape, and the outer wall of the support frame 4 is fixedly installed with the positioning plate 504, and the positioning plate 504 and the through hole in the support frame 4 correspond to the outer shape of the telescopic pipe 501.

[0040] In this way, the cross-shaped limiting strips 502 can hinder the rotation of the telescopic pipe 501 after the extension relative to the rake pipe 5, so that the blow ash holes can be evenly arranged on the lower side of the telescopic pipe 501 and face the ash accumulated below the boiler.

[0041] Further, the blow ash device support 1 is fixedly installed with the sliding strips 403 arranged in a rectangular space on one end surface extending into the boiler, and the upper and lower ends of the support frame 4 are both provided with the sink grooves 402 corresponding to the sliding strips 403, and the sliding strips 403 are slidingly connected to the sink grooves 402.

[0042] Through the relative sliding between the four sliding strips 403 and the sink grooves 402, the sliding extension stability of the support frame 4 relative to the blow ash device support 1 can be improved.

[0043] Please refer to Figure 2 In order to block the telescopic pipe 501, the end of the telescopic pipe 501 away from the rake pipe 5 is fixedly installed with the blocking cover 503, the blocking cover 503 is a circular cover plate, and the diameter of the blocking cover 503 is greater than the diameter of the opening in the support frame 4, which can not only block the end of the telescopic pipe 501, but also limit the sliding of the telescopic pipe 501 into the support frame 4.

[0044] It should be noted that the blocking cover 503 is not limited to a circular cover, but can be any regular shape covering the end of the telescopic pipe 501.

[0045] Please refer to Figures 2 to 3 In the embodiment, the front and rear sides of the support frame 4 are both slidingly installed with the connecting frame 6, the connecting frame 6 is composed of a vertical rack 601 at one end of an L-shaped frame, and the front and rear side walls of the support frame 4 are provided with the notches for the rack 601 of the connecting frame 6 to slide through, so as to change the relative distance between the L-shaped frame of the connecting frame 6 and the support frame 4.

[0046] Further, the L-shaped frame part of the connecting frame 6 is connected with the telescopic pipes 501, so that the connecting frame 6 can drive the unilateral telescopic pipes 501 to move synchronously.

[0047] Moreover, since the connecting frame 6 has the L-shaped frame, the rack 601 can be higher than the telescopic pipe 501 in the vertical direction, so that the rack 601 extending into the support frame 4 will not contact the rake pipe 5 to cause movement interference.

[0048] In order to conveniently adjust the distance of the independent single telescopic pipe 501 relative to the connecting frame 6, the adjusting nail 602 is rotatably installed on the blocking cover 503 and is screwed to the connecting frame 6, and the distance of the single telescopic pipe 501 relative to the connecting frame 6 can be changed by rotating the adjusting nail 602.

[0049] In the embodiment, the tooth surfaces of the two racks 601 in the two front and rear relative connecting frames 6 are oppositely oriented, and the top of the supporting frame 4 is further fixedly installed with the mounting frame 7, and the mounting frame 7 is loaded with the gear mechanism for pulling the synchronous movement of the two racks 601.

[0050] In this way, the gear mechanism can be used as a power input source to pull the movement of the two connecting frames 6 relative to the supporting frame 4, so that the connecting frame 6 simultaneously drives several telescopic pipes 501 to extend or retract relative to the rake pipe 5.

[0051] Please refer to Figures 3 to 4 In the embodiment, the gear mechanism includes the servo motor 8 fixedly installed on the mounting frame 7 and serving as a driving source, and the two gears 9 rotatably connected below the mounting frame 7, wherein the shaft center of each of the two gears 9 is fixedly provided with the pulley 10 rotatably connected to the mounting frame 7, and the two gears 9 are respectively and mutually meshed with the tooth surfaces of the two racks 601 on the two connecting frames 6.

[0052] Since the shaft center positions of the two gears 9 deviate from the front and rear vertical direction, the mounting frame 7 should be obliquely installed on the supporting frame 4, and the servo motor 8 should be shielded and protected by the outer protective cover with high-temperature resistance.

[0053] In the embodiment, the transmission chain 11 is sleeved between the two pulleys 10, so that the rotation of the two gears 9 is synchronous, the output shaft of the servo motor 8 is fixedly connected with one of the pulleys 10, so that the servo motor 8 can realize synchronous control of the two gears 9 by driving one of the gears 9 to rotate.

[0054] The working principle of the above embodiment is that in the scene that the rake type soot blower needs to be removed for maintenance, by controlling the servo motor 8 located on the support frame 4, the servo motor 8 drives the gear 9 connected to the output end to rotate, the gear 9 drives another gear 9 to rotate synchronously through the fixed connection of the pulley 10 and the transmission chain 11 outside the pulley 10, and the toothed engagement of the gear 9 rotation, the rack 601 meshed with the two gears 9 respectively slides and extends towards the inside of the support frame 4, at this time the L-shaped frame connected to the rack 601 drives a plurality of connected telescopic pipes 501 to slide towards the inside of the support frame 4 and shrink inside the rake type pipe 5, after the sliding telescopic pipe 5, the straight pipe 3 is telescoped to have only the width of the support frame 4 in the direction perpendicular to the straight pipe 3, at this time the soot blower support 1 can be conveniently removed outside the boiler and taken out directly with the support frame 4 connected with the soot blower support 1, so that the front end of the rake type soot blower does not need to be removed, and the convenience is improved.

[0055] The electrical components appearing in the text are electrically connected with the main controller and the power supply. The main controller can be a conventional known device such as a computer for control, and the existing disclosed power connection technology is not described in detail.

Claims

1. A rake-type soot blower, comprising a soot blower support (1), a walking air supply mechanism (2) connected in the soot blower support (1) by a fixed plate, wherein the walking air supply mechanism (2) is used for inputting a soot blowing air source while providing a walkable slide rail structure; The walking air supply mechanism (2) is further communicated with a straight pipe (3) at one end, and the straight pipe (3) is communicated with a rake pipe (5) at the end away from the walking air supply mechanism (2). The end of the soot blower support (1) is also movably installed with a support frame (4), the straight pipe (3) is vertically connected with a telescopic pipe (501) at one end of the rake pipe (5), and the front and rear sides of the support frame (4) are both slidably connected with a connecting frame (6). Wherein, the connecting frame (6) is composed of a L-shaped frame with a vertical rack (601) at one end, and the front and rear walls of the support frame (4) are provided with slots for the rack (601) of the connecting frame (6) to slide through.

2. A rake-type sootblower according to claim 1, characterized in that: The rake pipe (5) penetrates through the support frame (4) to maintain the stability of the telescopic state. Wherein, the telescopic pipe (501) is continuously distributed in the axial direction of the straight pipe (3), and the telescopic pipe (501) is slidably connected to the support frame (4).

3. A rake-type sootblower according to claim 1, characterized in that: The top of the support frame (4) is also fixedly installed with a mounting frame (7), and the mounting frame (7) is loaded with a gear mechanism for synchronously driving two racks (601). Wherein, the gear mechanism comprises a servo motor (8) fixedly installed on the mounting frame (7) and serving as a driving source, two gears (9) rotatably connected below the mounting frame (7), wherein the shaft centers of the two gears (9) are fixedly provided with pulleys (10) rotatably connected to the mounting frame (7), the two gears (9) are respectively engaged with the tooth surfaces of the racks (601) on the two connecting frames (6), a transmission chain (11) is sleeved between the two pulleys (10), and the output shaft of the servo motor (8) is fixedly connected with one of the pulleys (10).

4. A rake sootblower according to claim 2, characterised in that: The outer wall of the telescopic pipe (501) is fixedly provided with limit strips (502) distributed in a cross shape, the outer wall of the support frame (4) is fixedly installed with a positioning plate (504), and the positioning plate (504) and the through hole in the support frame (4) correspond to the outer shape of the telescopic pipe (501).

5. A rake sootblower according to claim 1, characterized in that: The end of the soot blower support (1) extending into the boiler is fixedly installed with slide bars (403) arranged in a rectangular space, the upper and lower ends of the support frame (4) are both provided with sink grooves (402) corresponding to the slide bars (403), and the slide bars (403) are slidably connected to the sink grooves (402).

6. A rake sootblower according to claim 1, characterized in that: The L-shaped frame part of the connecting frame (6) is connected with the telescopic pipes (501).

7. A rake-type sootblower according to claim 1, characterized in that: The end of the telescopic pipe (501) away from the rake pipe (5) is fixedly installed with a blocking cover (503), the blocking cover (503) is rotatably installed with an adjusting pin (602), and the adjusting pin (602) is threadedly connected to the connecting frame (6).

8. A rake-type sootblower according to claim 1, characterized in that: The support frame (4) is a U-shaped frame with an upper opening and a lower opening, and the two side inner walls of the support frame (4) are fixedly connected with a reinforcing plate (401).

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