A device for treating ash deposition of a thermal power boiler

Abstract

This utility model relates to the field of boiler ash removal technology and provides an ash treatment device for thermal power boilers, including a mounting plate; a mounting base fixedly connected to one side of the mounting plate, with a sealing sleeve fixedly connected to the inner wall of the mounting plate, and a controller fixedly connected to one side of the front of the mounting base; an outer connecting pipe disposed inside the mounting base, one end of the outer connecting pipe passing through the sealing sleeve and extending to the outside of the mounting plate, and a spray pipe provided at one end of the outer connecting pipe, with spray holes opened on the surface of the spray pipe; an inner connecting pipe extending to the outside of the outer connecting pipe is slidably connected inside the outer connecting pipe, and a first sealing ring is fixedly connected to one end of the surface of the inner connecting pipe. The thermal power boiler ash treatment device provided by this solution utilizes a moving component to allow the spray pipe to slide back and forth, and uses a cleaning component to clean the surface of the spray pipe, which can effectively reduce the amount of furnace ash and other impurities adhering to the surface of the spray pipe, and reduce the number of times the spray pipe needs to be disassembled and cleaned.

Description

Technical Field

[0001] This utility model belongs to the field of boiler ash removal technology, and in particular relates to an ash treatment device for thermal power boilers. Background Technology

[0002] Thermal power boilers are the core equipment of thermal power plants. They generate high-temperature flue gas by burning fossil fuels, which heats the water or steam inside the boiler and ultimately converts it into electrical energy. However, during use, a large amount of ash will adhere to the inner wall of the thermal power boiler, which will affect its conversion efficiency. Therefore, it is necessary to clean the ash.

[0003] Chinese patent discloses a steam soot blowing device for starting a boiler, publication number CN215765156U. The document states that it "includes: an inlet pipe and an outlet pipe, the outlet pipe being sleeved outside the inlet pipe and slidably connected to the inlet pipe, with one end of the inlet pipe extending from the outlet pipe, a sealing sleeve provided at the end of the outlet pipe extending from the inlet pipe, and a nozzle provided at the other end; a rack is fixedly provided on the outer wall of the outlet pipe, the rack being arranged along the axial direction of the inlet pipe, and multiple teeth being evenly distributed on both sides along its arrangement direction; sector gears are provided on both sides of the rack, and the two sector gears rotate in the same direction through a power device; when the two sector gears rotate to the positions corresponding to the rack, the rack meshes and drives the rack to move in opposite directions respectively."

[0004] However, in the above-mentioned scheme, the nozzles on the nozzles are prone to clogging. When the ash is not removed by air jet, ash and other impurities tend to accumulate at the nozzles, which makes it inconvenient for subsequent steam to be ejected. Frequent disassembly and cleaning of the nozzles will increase the workload of the staff and affect the efficiency of cleaning the accumulated ash. Therefore, it is necessary to design an ash treatment device for thermal power boilers. Utility Model Content

[0005] This utility model provides an ash treatment device for thermal power boilers, which aims to solve the problem that some currently used ash treatment devices are inconvenient to reduce the number of times the nozzles need to be cleaned.

[0006] This utility model is implemented as follows: an ash treatment device for thermal power boilers includes an installation plate; a mounting base fixedly connected to one side of the installation plate, with a sealing sleeve fixedly connected to the inner wall of the installation plate, and a controller fixedly connected to one side of the front of the mounting base; an outer connecting pipe disposed inside the mounting base, one end of the outer connecting pipe passing through the sealing sleeve and extending to the outside of the installation plate, and a spray pipe provided at one end of the outer connecting pipe, with spray holes opened on the surface of the spray pipe; an inner connecting pipe slidably connected inside the outer connecting pipe, extending to the outside of the outer connecting pipe, and a first sealing ring fixedly connected to one end of the surface of the inner connecting pipe; a cleaning assembly assembled on one side of the installation plate, the cleaning assembly being used for scraping and cleaning the surface of the spray pipe; and a moving assembly assembled on the mounting base, the moving assembly being used for sliding adjustment of the outer connecting pipe.

[0007] Preferably, the cleaning assembly includes: a fixed base symmetrically fixedly connected to one side of the mounting plate, the inner wall of the fixed base having a slot, and a fixing bolt extending into the slot being movably connected to one end of the fixed base; and a cleaning cover movably connected to one side of the mounting plate, with locking blocks fixedly connected to both ends of one side of the cleaning cover, and a bolt hole at one end of the locking block having a threaded engagement with one end of the fixing bolt.

[0008] Preferably, one side of the inner wall of the cleaning cover is inclined, and the other side of the bottom end of the cleaning cover is provided with a through groove.

[0009] Preferably, the card block and the card slot form an engaging structure, and the card block and the card slot are convex in shape.

[0010] Preferably, the nozzles are funnel-shaped and are distributed at equal intervals and angles on the surface of the nozzle.

[0011] Preferably, a threaded sleeve is fixedly connected to one side of the nozzle, and a threaded groove that is threadedly engaged with the threaded sleeve is provided on one side of the external connecting pipe.

[0012] Preferably, a second sealing ring is fixedly connected to one side of the external connecting pipe, and the second sealing ring is O-shaped.

[0013] Preferably, the moving component includes: a fixing groove formed inside the upper end of the mounting base, the inner wall of the fixing groove being rotatably connected to a threaded rod; a threaded block threadedly connected to the surface of the threaded rod, the bottom end of the threaded block being fixedly connected to one side of the top end of the external connecting pipe; and a servo motor fixedly connected to the upper end of one side of the mounting base, the output end of the servo motor being fixedly connected to one end of the threaded rod via a coupling.

[0014] Preferably, the inner wall of the fixing groove is provided with a sliding groove, and the upper ends of both ends of the threaded block are fixedly connected with sliders that slide in cooperation with the inside of the sliding groove.

[0015] Compared with related technologies, the ash treatment device for thermal power boilers provided by this utility model has the following beneficial effects:

[0016] The nozzle slides back and forth and makes relative sliding contact with the cleaning hood, which can scrape and clean the furnace ash and other impurities adhering to the nozzle surface, avoiding excessive furnace ash and impurities from affecting the air jet effect of subsequent nozzles, reducing the number of times the nozzle needs to be disassembled and cleaned. At the same time, when not dusting, the nozzle can be retracted into the cleaning hood to reduce the adhesion of furnace ash on the nozzle surface and improve its practicality. In addition, the threaded engagement of the threaded sleeve and threaded groove enables quick disassembly and assembly between the nozzle and the external connecting pipe, facilitating the disassembly, cleaning, anti-clogging, maintenance, or replacement of the nozzle. Furthermore, the cleaning hood can be disassembled for cleaning and maintenance. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the present utility model;

[0018] Figure 2 This is a bottom view of the structure of this utility model;

[0019] Figure 3 This is a frontal cross-sectional view of the present invention.

[0020] Figure 4 This is a partial cross-sectional structural diagram of the fixing seat of this utility model;

[0021] Figure 5 This is a schematic diagram of the explosion structure inside the inner and outer connecting pipes and at the nozzle of this utility model;

[0022] Figure 6 This is a partial cross-sectional exploded view of the cleaning component of this utility model.

[0023] In the diagram: 1. Mounting plate; 2. Mounting base; 3. Moving component; 301. Threaded rod; 302. Slide groove; 303. Fixing groove; 304. Servo motor; 305. Slider; 306. Threaded block; 4. Inner connecting pipe; 5. Controller; 6. Spray nozzle; 7. Cleaning component; 701. Through groove; 702. Cleaning cover; 703. Locking block; 704. Bolt hole; 705. Fixing bolt; 706. Fixing base; 707. Locking groove; 8. Outer connecting pipe; 9. Spray hole; 10. Threaded groove; 11. First sealing ring; 12. Second sealing ring; 13. Threaded sleeve; 14. Sealing sleeve. Detailed Implementation

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0025] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] Example 1

[0027] A preferred embodiment of the ash treatment device for thermal power boilers provided by this utility model is, for example... Figures 1 to 6 The device for treating ash accumulation in a thermal power boiler includes a mounting plate 1; a mounting base 2 fixedly connected to one side of the mounting plate 1, with a sealing sleeve 14 fixedly connected to the inner wall of the mounting plate 1, and a controller 5 fixedly connected to one side of the front of the mounting base 2; an outer connecting pipe 8 disposed inside the mounting base 2, one end of the outer connecting pipe 8 passing through the sealing sleeve 14 and extending to the outside of the mounting plate 1, and a spray pipe 6 disposed at one end of the outer connecting pipe 8, with spray holes 9 opened on the surface of the spray pipe 6; an inner connecting pipe 4 slidably connected inside the outer connecting pipe 8 and extending to the outside of the outer connecting pipe 8, with a first sealing ring 11 fixedly connected to one end of the surface of the inner connecting pipe 4; a cleaning assembly 7 assembled on one side of the mounting plate 1, used for scraping and cleaning the surface of the spray pipe 6; and a moving assembly 3 assembled on the mounting base 2, used for sliding adjustment of the outer connecting pipe 8.

[0028] It should be noted that some existing ash removal devices for thermal power boilers still have certain shortcomings in actual use. When ash removal is not performed by jet cleaning, ash and other impurities tend to accumulate at the nozzles, which makes it difficult for steam to be ejected later. Frequent disassembly and cleaning of the nozzles will increase the workload of the staff and affect the efficiency of ash removal.

[0029] In this embodiment, the first sealing ring 11 ensures the sealing of the sliding between the inner connecting pipe 4 and the outer connecting pipe 8, the second sealing ring 12 improves the sealing of the nozzle 6 and the outer connecting pipe 8 after installation, and the sealing sleeve 14 improves the sealing of the sliding between the surface of the outer connecting pipe 8 and the inner wall of the mounting plate 1. Then, the inner connecting pipe 4 is connected to the external steam dust blowing equipment, and then the external steam is transported through the inner connecting pipe 4, the outer connecting pipe 8 and the nozzle 6, and sprayed out through the nozzle hole 9 to achieve the dust blowing action. At the same time, the moving component 3 can be used to make the outer connecting pipe 8 slide and drive the nozzle 6 to slide, thereby changing its dust blowing range. The back and forth sliding of the nozzle 6 will make relative sliding contact with the cleaning cover 702, which can scrape and clean the furnace ash and other impurities adhering to the surface of the nozzle 6, reducing the number of times the nozzle 6 is disassembled and cleaned. At the same time, the threaded engagement of the threaded sleeve 13 and the threaded groove 10 can realize the quick disassembly and assembly between the nozzle 6 and the outer connecting pipe 8, which facilitates the disassembly, cleaning and anti-clogging of the nozzle 6.

[0030] In a further preferred embodiment of the present invention, the cleaning component 7 includes: a fixed base 706 symmetrically fixedly connected to one side of the mounting plate 1, the inner wall of the fixed base 706 having a slot 707, and a fixing bolt 705 extending into the slot 707 being movably connected to one end of the fixed base 706; and a cleaning cover 702 movably connected to one side of the mounting plate 1, with two ends of one side of the cleaning cover 702 fixedly connected to a locking block 703, and one end of the locking block 703 having a bolt hole 704 that is threadedly engaged with one end of the fixing bolt 705.

[0031] In this embodiment, by utilizing the relative sliding between the nozzle 6 and the cleaning cover 702, excessive furnace ash and other impurities adhering to the surface of the nozzle 6 can be scraped and cleaned, reducing the obstruction of airflow from the nozzle 9 due to excessive furnace ash adhesion. At the same time, the fixing bolt 705 can be loosened until it is completely disengaged from the bolt hole 704, and then the cleaning cover 702 can be pulled to completely disengage the locking block 703 from the slot 707, thereby enabling the cleaning cover 702 to be disassembled, cleaned, or replaced for maintenance.

[0032] In a further preferred embodiment of the present invention, one side of the inner wall of the cleaning cover 702 is inclined, and a through groove 701 is provided on the other side of the bottom end of the cleaning cover 702.

[0033] In this embodiment, when the nozzle 6 is retracted into the cleaning hood 702, it can be shielded and protected by the cleaning hood 702 to reduce the adhesion of furnace ash on the surface of the nozzle 6. At the same time, high-pressure gas is delivered to blow out the furnace ash in the nozzle 9 and guide it through the channel 701 to be discharged into the interior of the cleaning hood 702 by one side of the inner wall of the cleaning hood 702.

[0034] In a further preferred embodiment of the present invention, the card block 703 and the card slot 707 form an engaging structure, and the shapes of the card block 703 and the card slot 707 are convex.

[0035] In this embodiment, the convex locking block 703 and locking groove 707 are used to improve the firmness and stability of the initial engagement installation between the cleaning cover 702 and the fixing base 706.

[0036] In a further preferred embodiment of the present invention, the nozzle 9 is funnel-shaped and is distributed at equal intervals and angles on the surface of the nozzle 6.

[0037] In this embodiment, the funnel-shaped nozzle 9 makes it easier for steam to be ejected from the inside of the nozzle 6, while ash and other materials are less likely to enter the inside of the nozzle 6 through the nozzle 9.

[0038] In a further preferred embodiment of the present invention, a threaded sleeve 13 is fixedly connected to one side of the nozzle 6, and a threaded groove 10 that is threadedly engaged with the threaded sleeve 13 is provided on one side of the external connecting pipe 8.

[0039] In this embodiment, the threaded engagement of the threaded sleeve 13 and the threaded groove 10 enables quick assembly and disassembly between the nozzle 6 and the external connecting pipe 8.

[0040] In a further preferred embodiment of the present invention, a second sealing ring 12 is fixedly connected to one side of the external connecting pipe 8, and the second sealing ring 12 is O-shaped.

[0041] In this embodiment, the second sealing ring 12 of the O-shape is used to improve the sealing performance of the nozzle 6 and the external connecting pipe 8 after threaded installation.

[0042] Example 2

[0043] Based on Example 1, a preferred embodiment of the ash treatment device for thermal power boilers provided by this utility model is as follows: Figures 1 to 6 As shown: The moving component 3 includes: a fixing groove 303 formed inside the upper end of the mounting base 2, with a threaded rod 301 rotatably connected to the inner wall of the fixing groove 303; a threaded block 306 threadedly connected to the surface of the threaded rod 301, with the bottom end of the threaded block 306 fixedly connected to one side of the top end of the external connecting pipe 8; and a servo motor 304 fixedly connected to the upper end of one side of the mounting base 2, with the output end of the servo motor 304 fixedly connected to one end of the threaded rod 301 via a coupling.

[0044] In this embodiment, by starting the servo motor 304 to drive the threaded rod 301 to rotate, the threaded rod 301 and the threaded block 306 are engaged to make the threaded block 306 slide and drive the outer connecting pipe 8 to slide, thereby allowing the range of air jet dust removal from the nozzle 6 to be changed and adjusted.

[0045] In a further preferred embodiment of the present invention, a sliding groove 302 is provided on the inner wall of the fixing groove 303, and a slider 305 that slides and engages with the inside of the sliding groove 302 is fixedly connected to the upper ends of both ends of the threaded block 306.

[0046] In this embodiment, the sliding of the slider 305 inside the groove 302 is used to improve the smoothness of the back-and-forth sliding of the threaded block 306.

[0047] In summary, the movable component 3 allows the nozzle 6 to slide back and forth, which, in conjunction with the cleaning cover 702, can scrape and clean the excessive furnace ash and other impurities adhering to the surface of the nozzle 6. Furthermore, when not removing ash, the cleaning cover 702 reduces the adhesion of furnace ash to the surface of the nozzle 6, thereby effectively reducing the number of times the nozzle 6 needs to be disassembled, cleaned, and prevented from clogging.

[0048] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0049] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0050] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A device for treating ash accumulation in a thermal power boiler, characterized in that, include: Installation disk (1); A mounting base (2) is fixedly connected to one side of the mounting plate (1), a sealing sleeve (14) is fixedly connected to the inner wall of the mounting plate (1), and a controller (5) is fixedly connected to one side of the front of the mounting base (2). An external connecting pipe (8) is provided inside the mounting base (2). One end of the external connecting pipe (8) passes through the sealing sleeve (14) and extends to the outside of the mounting plate (1). A nozzle (6) is provided at one end of the external connecting pipe (8). A nozzle hole (9) is opened on the surface of the nozzle (6). An internal connecting pipe (4) extending to the outside of the external connecting pipe (8) is slidably connected inside the external connecting pipe (8). A first sealing ring (11) is fixedly connected to one end of the surface of the internal connecting pipe (4). A cleaning assembly (7) is mounted on one side of the mounting plate (1), the cleaning assembly (7) being used to scrape and clean the surface of the nozzle (6); A movable component (3) is mounted on the mounting base (2) for sliding adjustment of the external connecting pipe (8).

2. The ash treatment device for thermal power boilers as described in claim 1, characterized in that, The cleaning component (7) includes; A fixing seat (706) is symmetrically fixedly connected to one side of the mounting plate (1). The inner wall of the fixing seat (706) is provided with a slot (707). One end of the fixing seat (706) is movably connected to a fixing bolt (705) extending into the slot (707). A cleaning cover (702) is movably connected to one side of the mounting plate (1). Two ends of one side of the cleaning cover (702) are fixedly connected with locking blocks (703). One end of the locking block (703) is provided with a bolt hole (704) that is threadedly engaged with one end of the fixing bolt (705).

3. The ash treatment device for thermal power boilers as described in claim 2, characterized in that, One side of the inner wall of the cleaning cover (702) is inclined, and a through groove (701) is provided on the other side of the bottom end of the cleaning cover (702).

4. The ash treatment device for thermal power boilers as described in claim 2, characterized in that, The card block (703) and the card slot (707) form an engaging structure, and the card block (703) and the card slot (707) are convex in shape.

5. The ash treatment device for thermal power boilers as described in claim 1, characterized in that, The nozzle (9) is funnel-shaped and is distributed at equal intervals and angles on the surface of the nozzle (6).

6. The ash treatment device for thermal power boilers as described in claim 1, characterized in that, A threaded sleeve (13) is fixedly connected to one side of the nozzle (6), and a threaded groove (10) is provided on one side of the external connecting pipe (8) to be threadedly engaged with the threaded sleeve (13).

7. The ash treatment device for thermal power boilers as described in claim 1, characterized in that, A second sealing ring (12) is fixedly connected to one side of the external connecting pipe (8), and the second sealing ring (12) is O-shaped.

8. The ash treatment device for thermal power boilers as described in claim 1, characterized in that, The moving component (3) includes: A fixing groove (303) is formed at the upper end of the inside of the mounting base (2), and a threaded rod (301) is rotatably connected to the inner wall of the fixing groove (303); A threaded block (306) is threaded onto the surface of the threaded rod (301), and the bottom end of the threaded block (306) is fixedly connected to one side of the top end of the external connecting pipe (8); A servo motor (304) is fixedly connected to the upper end of one side of the mounting base (2), and the output end of the servo motor (304) is fixedly connected to one end of the threaded rod (301) through a coupling.

9. The ash treatment device for thermal power boilers as described in claim 8, characterized in that, The inner wall of the fixed groove (303) is provided with a sliding groove (302), and the upper ends of both ends of the threaded block (306) are fixedly connected with sliders (305) that slide in cooperation with the inside of the sliding groove (302).

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