Cable routing structure of soot blower

Abstract

The utility model discloses a cable routing structure of a soot blower, which comprises a soot blower motor, a sliding seat, a guide branch pipe and an anti-scald hose, and a cable follow-up mechanism and a controller are arranged on one side, far away from a steam pipeline, of a frame of the soot blower. A cable of the soot blower motor sequentially penetrates through the anti-scald hose and the guide branch pipe, then is far away from the steam pipeline, is led out to the cable follow-up mechanism and then is connected with the controller. According to the cable routing structure of the soot blower provided by the utility model, the anti-scald hose and the guide branch pipe are arranged, the leading-out section, near the motor of the soot blower, of the cable is wrapped and protected by the anti-scald hose, and the guide branch pipe guides the whole cable to one side, far away from the steam pipeline, of the rack and plays a role in bearing and supporting the cable; a safe distance is kept between the cable and the flange connection part of the steam pipeline, the influence of high-temperature steam on the cable is greatly reduced, the service life of the cable is remarkably prolonged, and the electrical performance stability of the cable is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of soot blower technology, and in particular to a cable routing structure for a soot blower. Background Technology

[0002] When incinerators process waste, the complex composition of the waste generates a large amount of dust and impurities during the incineration process. These substances tend to accumulate on the heating surfaces of the incinerator, such as the superheater and economizer, which not only reduces heat exchange efficiency and increases energy consumption, but may also damage the heating surfaces due to local overheating, affecting flue gas circulation and waste processing efficiency. Therefore, the ash on the heating surfaces is removed regularly to ensure the normal operation of the incinerator.

[0003] Currently, a common cable routing structure for sootblowers involves placing a steam pipe next to the sootblower motor. The cable connecting to the motor is coiled around a steel wire rope and wrapped around the steam pipe, allowing it to stretch and contract synchronously with the movement of the sootblower nozzle, thus enabling orderly cable movement. To reduce the high temperatures and frictional wear experienced by the cable during movement, existing improvements extend the cable outside the sootblower frame. By changing the cable's routing path, this reduces contact between the cable and high-temperature components, as well as friction with other parts. However, in practical applications, to prevent the cable connection to the sootblower motor from breaking due to frequent movement, a portion of the cable near the motor housing must be slack (i.e., this portion of the cable is not fully tensioned). Due to the lack of additional support structure, the slack cable will naturally sag, forming a suspended section. Due to issues such as aging seals and installation inaccuracies at the flange connections of steam pipelines, it is difficult to completely avoid high-temperature steam leakage. When the sootblower motor moves with the sootblower gun to the vicinity of the flange connection of the steam pipeline, the dangling cable near the motor housing will be exposed to high-temperature steam for a long time due to its proximity to the flange leakage point. This causes the cable sheath to age faster, the insulation layer performance to deteriorate, and even localized burns. In addition, the dangling cable may also rub against components such as steam pipelines and frames during the reciprocating movement of the sootblower, further aggravating wear, significantly shortening the cable's service life, and increasing equipment maintenance costs and downtime for repairs.

[0004] It is evident that existing technologies still need improvement and enhancement. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a cable routing structure for a soot blower, change the cable routing path, and prevent the cable from being affected by leaked high-temperature steam.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A cable routing structure for a sootblower includes a sootblower motor located beside a steam pipe, a slide connected to the sootblower motor, a guide branch pipe fixed on the slide, and a heat-resistant hose connected to the guide branch pipe. The end of the heat-resistant hose away from the guide branch pipe is tightly attached to the housing of the sootblower motor. The frame of the sootblower is provided with a cable follower mechanism and a controller on the side away from the steam pipe. The cable of the sootblower motor passes through the heat-resistant hose and the guide branch pipe in sequence, and then leads outward away from the steam pipe to the cable follower mechanism, and then connects to the controller.

[0008] As a further improvement to the above technical solution, the guide branch pipe includes a mounting plate, an outer bent rod set on the mounting plate, and an L-shaped pipe welded to the outer bent rod.

[0009] As a further improvement to the above technical solution, the mounting plate has two horizontally extending waist-shaped holes, and the slide has threaded holes corresponding to the waist-shaped holes. The locking screw passes through the waist-shaped holes and connects to the threaded holes.

[0010] As a further improvement to the above technical solution, the anti-scalding hose includes a flexible tube body and connectors at both ends of the tube body. The tube body includes an inner tube, a heat insulation layer, and a stainless steel braided layer arranged sequentially from the inside to the outside.

[0011] As a further improvement to the above technical solution, one of the connectors is threaded to the top end of the L-shaped tube, and the other connector is provided with a magnetic ring, which can magnetically attach to the housing of the soot blower motor.

[0012] As a further improvement to the above technical solution, the cable follower mechanism includes a slide rail located at the bottom of the frame and extending along the moving direction of the soot blower motor, a plurality of pulleys that are tactilely connected to the slide rail, and a cable clamp located at the bottom of each pulley.

[0013] As a further improvement to the above technical solution, the slide rail is an I-beam, and the pulley includes a U-shaped plate, an L-shaped plate disposed at the bottom of the U-shaped plate, and a number of traveling rollers disposed on the inner side of the vertical plate portion of the U-shaped plate.

[0014] As a further improvement to the above technical solution, the cable clamp includes an arc plate, two bolts and nuts that cooperate with the two bolts. The top of the arc plate is provided with two first through holes spaced apart from each other. The bottom of the arc plate is provided with the same number of second through holes that correspond one-to-one with the first through holes. The bolts pass through the first through holes and the second through holes and are locked by the nuts.

[0015] As a further improvement to the above technical solution, the slide rail is provided with a limiter to restrict the range of motion of the pulley.

[0016] As a further improvement to the above technical solution, the frame of the soot blower is provided with two support legs on the side, and a support tube is provided on the two support legs. The cable between the controller and the cable follower mechanism passes through the support tube.

[0017] The beneficial effects of this utility model are as follows: The cable routing structure of the sootblower provided by this utility model, by setting up anti-scalding hoses and guide branches, protects the cable at the outlet section near the sootblower motor by wrapping it with anti-scalding hoses, and the guide branches guide the entire cable to the side of the frame away from the steam pipe and provide support for the cable, so as to maintain a safe distance between the cable and the flange connection of the steam pipe, greatly reducing the impact of high-temperature steam on the cable, avoiding problems such as accelerated aging of the cable outer sheath, deterioration of insulation performance, and local burn damage, and significantly improving the service life and electrical performance stability of the cable. Attached Figure Description

[0018] Figure 1 A schematic diagram of the internal structure of the cable routing structure of the soot blower provided by this utility model.

[0019] Figure 2 A schematic diagram of the external structure of the cable routing structure of the soot blower provided by this utility model.

[0020] Figure 3 This is a schematic diagram of the anti-scalding hose.

[0021] Figure 4 This is an assembly drawing of the pulley and cable clamp.

[0022] Explanation of main component symbols: 11-Sootblower motor, 12-Cable, 13-Frame, 14-Steam pipe, 141-Flange connection, 2-Slide, 3-Guide branch pipe, 31-Mounting vertical plate, 32-Outer bent rod, 33-L-shaped pipe, 34-Oval hole, 35-Locking screw, 4-Anti-scalding hose, 41-Pipe body, 411-Inner pipe, 412-Insulation layer, 413-Stainless steel braided layer, 42-Joint, 421-Sleeve part, 422-Hexagonal connecting nut, 43-Magnetic ring, 5-Cable follower mechanism, 51-Slide rail, 52-Pulley, 521-U-shaped plate, 522-L-shaped plate, 523-Traveling roller, 53-Cable clamp, 531-Arc plate, 532-Nut, 533-Bolt, 6-Controller, 7-Limiter, 81-Foot, 82-Supporting tube. Detailed Implementation

[0023] This utility model provides a cable routing structure for a soot blower. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit the scope of protection of this utility model.

[0024] Please see Figure 1 and Figure 2 This utility model provides a cable routing structure for a soot blower, including a soot blower motor 11 located beside a steam pipe 14, a slide 2 connected to the soot blower motor 11, a guide branch pipe 3 fixed on the slide 2, and a heat-resistant hose 4 connected to the guide branch pipe 3. The end of the heat-resistant hose 4 away from the guide branch pipe 3 is tightly attached to the housing of the soot blower motor 11. The frame 13 of the soot blower is provided with a cable follower mechanism 5 and a controller 6 on the side away from the steam pipe 14. The cable 12 of the soot blower motor 11 is sequentially passed through the heat-resistant hose 4 and the guide branch pipe 3 and then led outward away from the steam pipe 14 to the cable follower mechanism 5, and then connected to the controller 6.

[0025] During operation of the cable 12 routing structure of the sootblower, the sootblower motor 11 moves via the sliding block 2 and the track, thereby driving the sootblowing gun to reciprocate and complete the soot cleaning operation on the heated surface of the incinerator. After the cable 12 is led out from the housing of the sootblower motor 11, it first passes through the anti-scalding hose 4, and then its routing is further constrained by the guide branch pipe 3 connected to the anti-scalding hose 4. Since the guide branch pipe 3 is fixed on the sliding block 2, it can move synchronously with the movement of the motor, ensuring that the cable 12 is always supported and guided by the guide branch pipe 3 and the anti-scalding hose 4 during movement. The guide branch pipe 3 guides the cable 12 from the high-temperature area beside the steam pipe 14 (such as near the flange leak point) to the side of the sootblower frame 13 away from the steam pipe 14. The cable servo mechanism 5 on the frame 13 enables the orderly stretching or contraction of the cable 12. The cable servo mechanism 5 automatically adjusts the tension of the cable 12 according to the moving distance of the sootblower motor 11, avoiding excessive local stretching or slack. Finally, the cable 12 is led out through the cable servo mechanism 5 and connected to the controller 6 to complete power or signal transmission. Throughout the process, the cable 12's routing path is strictly limited, preventing contact with high-temperature components or other parts due to slack or sagging, ensuring the stability and safety of the cable 12 during sootblower operation.

[0026] The cable routing structure of the sootblower provided by this utility model, by setting up an anti-scalding hose 4 and a guide branch pipe 3, protects the cable 12 at the lead-out section near the sootblower motor 11 by the anti-scalding hose 4, and the guide branch pipe 3 guides the cable 12 to the side of the frame 13 away from the steam pipe 14 and supports the cable 12, so that the cable 12 and the flange connection part 141 of the steam pipe 14 are kept at a safe distance, which greatly reduces the impact of high temperature steam on the cable 12, avoids problems such as accelerated aging of the outer sheath of the cable 12, deterioration of insulation performance, and local burn damage, and significantly improves the service life and electrical performance stability of the cable 12.

[0027] Specifically, the guide branch pipe 3 includes a mounting vertical plate 31, an outer bent rod 32 mounted on the mounting plate, and an L-shaped pipe 33 welded to the outer bent rod 32. The mounting vertical plate 31 serves as a basic mounting component and is fixed to the slide block 2 by screws or welding, providing a stable support foundation for the outer bent rod 32 and the L-shaped pipe 33. The bending design of the outer bending rod 32 (i.e., bending laterally away from the steam pipe 14) can actively deflect the cable 12 outward from its initial position near the soot blower motor 11 (near the flange leakage point of the steam pipe 14), forming a sufficient lateral safety distance (such as maintaining a distance of 300-500mm from the outer wall of the steam pipe 14), completely avoiding the splash range of high-temperature steam; the vertical section of the L-shaped tube 33 is welded to the outer bending rod 32, which guides the cable 12 to run vertically and also wraps and protects the cable 12, while the horizontal section guides the cable 12 longitudinally to the cable follower mechanism 5 entrance outside the frame 13. Through reasonable path planning, it is ensured that the cable 12 stays away from the high-temperature area of ​​the steam pipe 14 throughout the entire process, significantly reducing the risk of aging or burning of the cable 12 due to high-temperature baking.

[0028] Furthermore, the mounting plate 31 has two laterally extending oblong holes 34, and the slide 2 has threaded holes corresponding to the oblong holes 34. The locking screw 35 passes through the oblong holes 34 and connects to the threaded holes. The oblong holes 34 allow the guide branch pipe 3 to be flexibly adjusted in the lateral range, and the path of the cable 12 can be dynamically optimized according to the bending degree of the cable 12 during the actual operation of the sootblower and the safety distance requirement for the steam leakage point of the steam pipe 14.

[0029] Because the cable 12 extending from the housing of the sootblower motor 11 will bend immediately, in order to protect this part of the cable 12 as well, see [reference needed]. Figure 3 As shown, the anti-scalding hose 4 includes a flexible tube body 41 and connectors 42 at both ends of the tube body 41. The tube body 41 includes an inner tube 411, a heat insulation layer 412 (such as an asbestos heat insulation layer), and a stainless steel braided layer 413 arranged sequentially from the inside out. The cable 12 is inserted into the flexible tube body 41. The inner heat insulation layer 412 has low thermal conductivity and high temperature resistance (asbestos can withstand temperatures up to 500-800℃), which can significantly reduce the heat transfer efficiency of high-temperature steam (usually 150-300℃) leaking from the flange of the steam pipe 14 to the cable 12, greatly reducing the surface temperature of the outer sheath of the cable 12 and avoiding the problems of accelerated aging of the outer sheath, softening of the insulation layer, or even burning due to long-term high temperature. Combined with the outer stainless steel braided layer 413 reflecting part of the radiant heat, it forms a dual heat insulation mechanism that combines reflection and blocking with the heat insulation layer 412, further improving the overall heat insulation effect.

[0030] Furthermore, one of the connectors 42 is threaded to the top end of the L-shaped tube 33. This connector 42 includes a sleeve portion 421 and a hexagonal connecting nut 422 rotatably fitted onto the sleeve portion 421. The clamping action of the sleeve portion 421 prevents the stainless steel braided layer 413 and the asbestos braided layer from loosening at the ends. During installation, only the hexagonal connecting nut 422 needs to be rotated for tightening, making the operation simple. Since the sootblower motor does not have a port that can connect to the connector 42, the other connector 42 is equipped with a magnetic ring 43. The magnetic ring 43 can magnetically engage with the housing of the sootblower motor 11, minimizing the exposure of the cable 12.

[0031] Specifically, the cable follower mechanism 5 includes a slide rail 51 located at the bottom of the frame 13 and extending along the moving direction of the sootblower motor 11, multiple pulleys 52 that are tactilely connected to the slide rail 51, and a cable clamp 53 located at the bottom of each pulley 52. ​​The slide rail 51 extends along the moving direction of the sootblower motor 11, and the pulleys 52 are tactilely connected to the slide rail 51, resulting in an extremely low coefficient of friction. When the sootblower motor 11 reciprocates with the slide block 2, the cable 12 is fixed to the pulley 52 by the cable clamp 53, and the pulley 52 can roll synchronously along the slide rail 51, significantly reducing the moving resistance of the cable 12. This design avoids the risk of localized tensile deformation or breakage of the connection end of the cable 12 due to excessive moving resistance, significantly improving the dynamic reliability of the cable 12.

[0032] In this embodiment, see Figure 2 and Figure 4 As shown, the slide rail 51 is an I-beam, and the pulley 52 includes a U-shaped plate 521, an L-shaped plate 522 disposed at the bottom of the U-shaped plate 521, and several traveling rollers 523 disposed on the inner side of the vertical plate portion of the U-shaped plate 521. The traveling rollers 523 distributed on the left and right are engaged in the grooves on both sides of the I-beam and will not detach from the I-beam slide rail 51. The cable 12 is fixed in sections to the pulley 52 by the cable clamps 53 at the bottom of the L-shaped plate 522. When the soot blower motor 11 moves forward, the pulley 52 closest to the motor is pulled by the cable 12, driving the traveling rollers 523 to roll forward along the I-beam slide rail 51; subsequent pulleys 52 are pulled by the cable 12 in sequence and roll synchronously along the slide rail 51, so that the cable 12 is always supported in sections by the pulley 52 during the movement; when the motor moves backward, the pulley 52 rolls back to its original position, and the cable 12 retracts accordingly.

[0033] For details, see Figure 4As shown, the cable clamp 53 includes an arc plate 531, two bolts 533, and nuts 532 that mate with the two bolts 533. The top of the arc plate 531 has two first through holes spaced apart horizontally. The bottom of the L-shaped plate 522 has the same number of second through holes as the first through holes, each corresponding to one of them. The bolts 533 pass through the first and second through holes and are locked by the nuts 532. Regardless of whether the cable 12 is in a tensioned (linear) or slack (drooping) state, the arc design of the arc plate 531 allows it to naturally conform to the cable 12. The smooth arc surface reduces friction between the cable 12 and the clamping surface, preventing damage to the cable 12 from sharp edges. During installation, simply place the cable 12 between the arc plate 531 and the L-shaped plate 522, install the bolts 533, and then tighten the nuts 532 to complete the fixation. Of course, the bolts 533 also prevent the cable 12 from detaching from the arc plate 531. If the diameter of cable 12 changes (e.g., by replacing it with a cable of a different specification), the tightness of nut 532 can be adjusted to achieve a quick fit without replacing the entire cable clamp 53 structure, significantly improving the flexibility of maintenance.

[0034] The slide rail 51 is equipped with a limiter 7 to restrict the range of motion of the pulley 52. ​​The limiter 7 can be a stop or a buffer fixed at both ends of the slide rail 51, which can limit the maximum range of movement of the pulley 52. ​​When the motor moves to the limit position (such as when the soot blowing gun is fully extended or retracted), the pulley 52 is blocked by the limiter 7 to prevent the pulley 52 from disengaging from the slide rail 51 due to motor overtravel.

[0035] The cable 12 between the controller 6 and the cable follower mechanism 5 will not actually extend or retract due to the movement of the soot blower motor 11. This part of the cable 12 usually needs to span a long distance (such as 1-3 meters). If it is only fixed at both ends, the cable 12 will form a significant sag due to its own weight. Therefore, the frame 13 of the soot blower is provided with two support legs 81 on the side, and a support tube 82 is provided on the two support legs 81. The cable 12 between the controller 6 and the cable follower mechanism 5 passes through the support tube 82, and the support tube 82 provides an intermediate support point for the cable 12.

[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of this utility model.

Claims

1. A cable routing structure for a soot blower, characterized in that, The device includes a soot blower motor located beside the steam pipe, a slide connected to the soot blower motor, a guide branch pipe fixed on the slide, and a heat-resistant hose connected to the guide branch pipe. The end of the heat-resistant hose away from the guide branch pipe is in close contact with the housing of the soot blower motor. The frame of the soot blower is equipped with a cable follower mechanism and a controller on the side away from the steam pipe. The cable of the soot blower motor passes through the heat-resistant hose and the guide branch pipe in sequence, and then leads outward away from the steam pipe to the cable follower mechanism, and then connects to the controller.

2. The cable routing structure of the soot blower according to claim 1, characterized in that, The guide branch pipe includes a mounting plate, an outer bent rod set on the mounting plate, and an L-shaped pipe welded to the outer bent rod.

3. The cable routing structure of the soot blower according to claim 2, characterized in that, The mounting plate has two horizontally extending oblong holes, and the slide has threaded holes corresponding to the oblong holes. The locking screw passes through the oblong holes and connects to the threaded holes.

4. The cable routing structure of the soot blower according to claim 2, characterized in that, The heat-resistant hose includes a flexible tube body and connectors at both ends of the tube body. The tube body includes an inner tube, a heat insulation layer, and a stainless steel braided layer arranged sequentially from the inside out.

5. The cable routing structure of the soot blower according to claim 4, characterized in that, One of the connectors is threaded to the top of the L-shaped tube, and the other connector is equipped with a magnetic ring that can magnetically attach to the housing of the soot blower motor.

6. The cable routing structure of the soot blower according to claim 1, characterized in that, The cable follower mechanism includes a slide rail located at the bottom of the frame and extending along the moving direction of the soot blower motor, a plurality of pulleys that are tactilely connected to the slide rail, and a cable clamp located at the bottom of each pulley.

7. The cable routing structure of the soot blower according to claim 6, characterized in that, The slide rail is made of I-beams, and the pulley system includes a U-shaped plate, an L-shaped plate disposed at the bottom of the U-shaped plate, and several traveling rollers disposed on the inner side of the vertical plate portion of the U-shaped plate.

8. The cable routing structure of the soot blower according to claim 7, characterized in that, The cable clamp includes an arc plate, two bolts, and nuts that mate with the two bolts. The top of the arc plate has two first through holes spaced apart from each other. The bottom of the arc plate has the same number of second through holes that correspond one-to-one with the first through holes. The bolts pass through the first and second through holes and are locked by the nuts.

9. The cable routing structure of the soot blower according to claim 6, characterized in that, The slide rail is equipped with a limiter that restricts the range of motion of the pulley.

10. The cable routing structure of the soot blower according to claim 1, characterized in that, The frame of the soot blower has two legs on its side, and a support tube is installed on the two legs. The cable between the controller and the cable follower mechanism passes through the support tube.

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