Quick switching device for boiler air soot blower

Abstract

The utility model belongs to the technical field of soot blower, and disclose a quick switching device of boiler air soot blower, including boiler body, one end of boiler body is provided with the support, the inner surface of support is provided with adjusting assembly, adjusting assembly includes power motor, power motor and support fixed connection, the output of power motor penetrates support and is fixedly connected with reciprocating screw rod, reciprocating screw rod's outer surface slidingly connects with two sliding blocks, two the sliding block is fixedly connected with the moving frame in common, the utility model discloses a adjusting assembly is set up, and the rotation of reciprocating screw rod is driven under the power motor, and under the guiding effect of slide bar, make the rotating sleeve pipe drive soot blowing pipe realize axial reciprocating movement and the compound motion of circumferential rotation, expand the purging range through the compound motion, make the soot blowing hole form spiral purging track, enhance the impact and the covering effect of the heating area soot, promote the comprehensiveness and the thoroughness of dust cleaning.

Description

Technical Field

[0001] This utility model belongs to the field of soot blower technology, specifically a rapid switching device for boiler air soot blowers. Background Technology

[0002] In modern industry, boilers, as crucial thermal equipment, directly impact operational efficiency and safety due to the cleanliness of their heating surfaces. Ash accumulation and slag buildup hinder heat transfer, increase energy consumption, and in severe cases, even cause equipment failure or reduce boiler lifespan. Air soot blowers, as key devices for removing ash from boiler heating surfaces, often require multiple units working together to cover different areas such as the furnace, superheater, and reheater.

[0003] Meanwhile, the patent specification with application number CN219346493U discloses a boiler sootblower purging trajectory changing device, "including a sootblower, a sootblower tube provided on the sootblower, a sootblower opening on the sootblower tube; a movable collar slidably connected to the sootblower tube, a limiting device for restricting the sliding of the movable collar on the sootblower tube; a fixed block provided on one side of the sootblower tube, a linkage mechanism provided on the fixed block, the linkage mechanism driving the movable collar to slide on the sootblower tube; a driving device cooperating with the linkage mechanism provided on the movable collar; a fixing hole matching the sootblower opening on the movable collar, a filter screen provided on the fixing hole";

[0004] Existing boiler air soot blower quick switching devices have several drawbacks during use. First, the soot blowing tube has a single movement pattern, making it difficult for traditional devices to balance the blowing coverage and the impact force of ash accumulation, resulting in incomplete ash removal from complex heating surfaces. Second, the soot blowing holes are easily clogged by ash particles, and ash easily accumulates on the surface of the soot blowing tube. Existing designs lack efficient anti-clogging and self-cleaning mechanisms, which can lead to a decrease in soot blowing pressure and a reduction in ash removal efficiency after long-term operation, requiring frequent shutdowns for maintenance.

[0005] Therefore, a rapid switching device for boiler air soot blowers is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides a quick switching device for a boiler air soot blower, which has the advantages of forming a spiral blowing trajectory through the soot blowing holes, enhancing the impact and coverage effect on the ash on the heated surface, improving the comprehensiveness and thoroughness of soot removal, preventing ash accumulation from affecting soot blowing efficiency, ensuring long-term stable operation of the device, and reducing maintenance requirements.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a rapid switching device for a boiler air soot blower, comprising a boiler body, a bracket installed at one end of the boiler body, an adjustment component installed on the inner surface of the bracket, the adjustment component including a power motor, the power motor being fixedly connected to the bracket, the output end of the power motor passing through the bracket and fixedly connected to a reciprocating lead screw, two sliders slidably connected to the outer surface of the reciprocating lead screw, the two sliders being fixedly connected to a movable frame, the movable frame being slidably connected to the bracket, two crossbars fixedly connected to one end of the movable frame, a connecting seat being fixedly connected to one end of the two crossbars, a driven rod slidably connected to the inner surface of the reciprocating lead screw, one end of the driven rod passing through the reciprocating lead screw and rotatably connected to the connecting seat, a rotating sleeve installed at one end of the connecting seat, a soot blowing pipe rotatably sleeved on the inner surface of the rotating sleeve, one end of the soot blowing pipe passing through one end of the boiler body and extending into the boiler body.

[0008] Preferably, a sealing ring is installed on the inner surface of the rotating sleeve, and a connector is installed on the upper part of the outer surface of the rotating sleeve, the connector being connected to an air blower.

[0009] Preferably, the inner walls on both sides of the bracket are fixedly connected with sliding rods, and the inner surface of the movable frame is slidably sleeved with the two sliding rods.

[0010] Preferably, one end of the driven rod located inside the rotating sleeve is fixedly connected to the soot blowing pipe via a connecting rod, and an annular slide is installed on the outer surface of the driven rod, with the connecting seat rotatably connected to the annular slide.

[0011] Preferably, the inner surface of the reciprocating lead screw has two limiting grooves, and the outer surface of the driven rod is fixedly connected with a limiting block that cooperates with the two limiting grooves.

[0012] Preferably, the outer surface of the blowing tube is provided with a plurality of blowing holes, and the inner surface of each of the blowing holes is provided with a filter screen.

[0013] Preferably, a cleaning ring is installed on the inner surface of the boiler body, and the inner surface of the cleaning ring is slidably sleeved with the outer surface of the soot blowing pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model, by setting an adjustment component, enables the reciprocating screw to rotate under the drive of the power motor, and under the guidance of the slide rod, the rotating sleeve drives the soot blowing pipe to achieve a compound motion of axial reciprocating movement and circumferential rotation. The compound motion expands the blowing range and makes the soot blowing hole form a spiral blowing trajectory, which enhances the impact and coverage effect on the ash on the heated surface, and improves the comprehensiveness and thoroughness of the ash cleaning.

[0016] 2. This utility model achieves anti-clogging and self-cleaning functions by setting a filter screen on the soot blowing pipe and, with the help of the adjustment component and the scraping action of the cleaning ring, the filter screen in the soot blowing hole can intercept impurities to avoid clogging, and the cleaning ring continuously scrapes the dust accumulated on the pipe wall when the soot pipe rotates, preventing dust accumulation from affecting the soot blowing efficiency, ensuring the long-term stable operation of the device, and reducing maintenance needs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the adjustment component structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the movable frame and crossbar structure of this utility model;

[0020] Figure 4 This is a cross-sectional view of the reciprocating lead screw of this utility model and a schematic diagram showing the disassembled structure of the soot blowing pipe and the reciprocating lead screw.

[0021] Figure 5 This utility model Figure 4 Enlarged schematic diagram of the structure at point A in the middle;

[0022] Figure 6 This is a cross-sectional view of the reciprocating lead screw of this utility model and a schematic diagram showing the disassembly of the reciprocating lead screw and driven rod structure.

[0023] In the diagram: 1. Boiler body; 2. Support frame;

[0024] 3. Dust removal ring; 31. Filter screen;

[0025] 4. Adjustment components; 41. Power motor;

[0026] 42. Movable frame; 421. Slider;

[0027] 43. Reciprocating lead screw; 431. Driven rod; 432. Annular slide; 433. Limiting groove; 434. Limiting block;

[0028] 44. Crossbar; 45. Rotary sleeve; 46. Connector; 47. Slide rod; 48. Connecting seat;

[0029] 49. Soot blowing pipe; 491. Soot blowing hole. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] like Figures 1 to 6 As shown, this utility model provides a quick switching device for a boiler air soot blower, including a boiler body 1, a bracket 2 installed at one end of the boiler body 1, and an adjustment component 4 installed on the inner surface of the bracket 2.

[0032] Adjustment component 4 includes a power motor 41, which is fixedly connected to the bracket 2. The output end of the power motor 41 passes through the bracket 2 and is fixedly connected to a reciprocating lead screw 43. Two sliders 421 are slidably connected to the outer surface of the reciprocating lead screw 43. The two sliders 421 are jointly fixedly connected to a movable frame 42, which is slidably connected to the bracket 2. Two crossbars 44 are fixedly connected to one end of the movable frame 42. A connecting seat 48 is fixedly connected to one end of the two crossbars 44. A connecting seat 48 is slidably connected to the inner surface of the reciprocating lead screw 43. Driven rod 431, one end of which passes through reciprocating lead screw 43 and is rotatably connected to connecting seat 48. A rotating sleeve 45 is installed at one end of connecting seat 48. A soot blowing pipe 49 is rotatably sleeved on the inner surface of rotating sleeve 45. One end of soot blowing pipe 49 passes through one end of boiler body 1 and extends into boiler body 1. Driven by power motor 41, reciprocating lead screw 43 rotates. With the transmission of slider 421 and moving frame 42, soot blowing pipe 49 moves axially back and forth, expanding soot blowing coverage and improving soot cleaning efficiency.

[0033] Specifically, a sealing ring is installed on the inner surface of the rotating sleeve 45, and a connector 46 is installed on the upper part of the outer surface of the rotating sleeve 45. The connector 46 is connected to the air soot blower. The sealing ring ensures the sealing performance between the rotating sleeve 45 and the soot blowing pipe 49 to prevent compressed air leakage. The connector 46 enables quick docking with the air soot blower to ensure stable air supply transmission.

[0034] like Figures 1 to 6 As shown, the inner walls on both sides of the bracket 2 are fixedly connected with slide rods 47. The inner surface of the movable frame 42 is slidably sleeved with the two slide rods 47. The slide rods 47 form a guiding constraint on the movable frame 42 to ensure the stability of the soot blowing pipe 49 when it moves axially back and forth, and to avoid deviation and shaking.

[0035] Furthermore, one end of the driven rod 431 located inside the rotating sleeve 45 is fixedly connected to the soot blowing pipe 49 via a connecting rod, and an annular slide 432 is installed on the outer surface of the driven rod 431. The connecting seat 48 is rotatably connected to the annular slide 432. The rotational cooperation between the annular slide 432 and the connecting seat 48 allows the driven rod 431 to drive the soot blowing pipe 49 to rotate circumferentially, forming a spiral blowing trajectory and enhancing the impact effect on the accumulated ash.

[0036] like Figures 1 to 6 As shown, the inner surface of the reciprocating screw 43 has two limiting grooves 433, and the outer surface of the driven rod 431 is fixedly connected with a limiting block 434 that is used in conjunction with the two limiting grooves 433. The cooperation between the limiting grooves 433 and the limiting block 434 restricts the radial movement of the driven rod 431, while allowing it to slide axially and rotate with the reciprocating screw 43, thereby realizing the compound motion of the soot blowing tube 49.

[0037] It is worth noting that the outer surface of the soot blowing tube 49 is provided with a number of soot blowing holes 491, and the inner surface of each of the soot blowing holes 491 is provided with a filter screen 31.

[0038] like Figures 1 to 6 As shown, a cleaning ring 3 is installed on the inner surface of the boiler body 1. The inner surface of the cleaning ring 3 is slidably sleeved with the outer surface of the soot blowing pipe 49. The cleaning ring 3 scrapes off the accumulated ash on its outer surface synchronously with the movement of the soot blowing pipe 49, so as to avoid the accumulation of ash on the pipe wall from affecting the soot blowing effect and realize the self-cleaning function.

[0039] The power motor 41 is existing technology and will not be described in detail. Additionally, this utility model also includes a power supply, controller, and switch, which are not the main technical points of this patent and will not be described in detail. The wiring diagram of the motor in this utility model is common knowledge in the field, and its working principle is already known technology. The appropriate model is selected based on actual use; therefore, the control method and wiring layout of the motor will not be explained in detail.

[0040] Working principle and process: After the power motor 41 starts, it drives the reciprocating screw 43 to rotate. Under the action of the thread of the reciprocating screw 43, the slider 421 drives the moving frame 42 to move back and forth along the slide rod 47 axially. Through the crossbar 44 and the connecting seat 48, the rotating sleeve 45 and the soot blowing pipe 49 move back and forth axially synchronously. At the same time, the driven rod 431 cooperates with the limiting groove 433 of the reciprocating screw 43 through the limiting block 434. It rotates with the reciprocating screw 43 and drives the soot blowing pipe 49 to rotate circumferentially through the annular slide 432, forming a compound motion of axial reciprocating and circumferential rotation.

[0041] Compressed air enters the rotating sleeve 45 through the connector 46 and is ejected through the soot blowing hole 491 of the soot blowing pipe 49. The filter screen 31 filters impurities to prevent clogging. When the soot blowing pipe 49 moves, the cleaning ring 3 scrapes off the ash accumulated on its surface to ensure soot blowing efficiency. This device achieves multi-dimensional movement of the soot blowing pipe 49 by adjusting the transmission of the component 4, thereby improving the soot cleaning effect on the heating surface inside the boiler body 1.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid switching device for a boiler air soot blower, comprising a boiler body (1), characterized in that: A bracket (2) is installed at one end of the boiler body (1), and an adjustment component (4) is installed on the inner surface of the bracket (2). The adjustment assembly (4) includes a power motor (41), which is fixedly connected to the bracket (2). The output end of the power motor (41) passes through the bracket (2) and is fixedly connected to a reciprocating lead screw (43). Two sliders (421) are slidably connected to the outer surface of the reciprocating lead screw (43). The two sliders (421) are fixedly connected to a movable frame (42). The movable frame (42) is slidably connected to the bracket (2). Two crossbars (44) are fixedly connected to one end of the movable frame (42). One end of the crossbar (44) is fixedly connected to a connecting seat (48). The inner surface of the reciprocating screw (43) is slidably connected to a driven rod (431). One end of the driven rod (431) passes through the reciprocating screw (43) and is rotatably connected to the connecting seat (48). One end of the connecting seat (48) is equipped with a rotating sleeve (45). The inner surface of the rotating sleeve (45) is rotatably fitted with a soot blowing pipe (49). One end of the soot blowing pipe (49) passes through one end of the boiler body (1) and extends into the boiler body (1).

2. The rapid switching device for a boiler air soot blower according to claim 1, characterized in that: The inner surface of the rotating sleeve (45) is fitted with a sealing ring, and the upper part of the outer surface of the rotating sleeve (45) is fitted with a connector (46), which is connected to the air blower.

3. The rapid switching device for a boiler air soot blower according to claim 1, characterized in that: The inner walls of both sides of the bracket (2) are fixedly connected with sliding rods (47), and the inner surface of the movable frame (42) is slidably sleeved with the two sliding rods (47).

4. The rapid switching device for a boiler air soot blower according to claim 1, characterized in that: One end of the driven rod (431) located inside the rotating sleeve (45) is fixedly connected to the soot blowing pipe (49) via a connecting rod, and an annular slide (432) is installed on the outer surface of the driven rod (431), and the connecting seat (48) is rotatably connected to the annular slide (432).

5. A rapid switching device for a boiler air soot blower according to claim 4, characterized in that: The inner surface of the reciprocating lead screw (43) has two limiting grooves (433), and the outer surface of the driven rod (431) is fixedly connected with a limiting block (434) that works in conjunction with the two limiting grooves (433).

6. The rapid switching device for a boiler air soot blower according to claim 1, characterized in that: The outer surface of the soot blowing pipe (49) is provided with a plurality of soot blowing holes (491), and the inner surface of each of the plurality of soot blowing holes (491) is provided with a filter screen (31).

7. The rapid switching device for a boiler air soot blower according to claim 1, characterized in that: The inner surface of the boiler body (1) is equipped with a cleaning ring (3), and the inner surface of the cleaning ring (3) is slidably sleeved with the outer surface of the soot blowing pipe (49).

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