A wear-resistant resistance balancer for dust removal system

Abstract

The utility model provides a kind of wear-resistant resistance balancer for dust removal system, including cylindrical valve body, the opening at both ends of cylindrical valve body is uniformly connected with the installation flange, the opening at both ends of cylindrical valve body is equipped with first inner tube section, the middle part of cylindrical valve body is equipped with second inner tube section between two first inner tube sections, the outer wall of the middle part of cylindrical valve body is uniformly connected with fixed frame, the inner chamber of two sides of fixed frame is slidably matched with the valve piece matched with second inner tube section, the valve piece and cylindrical valve body are provided with adjusting assembly, and the both ends of cylindrical valve body are equipped with wear-resistant bushing. By installing wear-resistant bushing in cylindrical valve body, it is directly contacted with dust-containing airflow, effectively protects valve body main body from abrasion, guide vane optimizes airflow form, reduces the scouring strength of dust to component, positioning and limiting structure avoids additional friction caused by component loosening, prolongs equipment maintenance cycle.

Description

Technical Field

[0001] This utility model relates to the field of dust removal equipment technology, specifically a wear-resistant resistance balancer for a dust removal system. Background Technology

[0002] In dust removal systems, resistance balancers play a crucial role in balancing the resistance of various branch pipes and ensuring stable system operation. Airflow in dust removal systems often carries dust particles, which continuously scour pipes and regulating components, easily causing wear on valve bodies, valve cores, and other structural components, shortening equipment lifespan and increasing maintenance costs. In existing resistance balancing devices, the clearance between the valve core and valve body of the balancing valve is prone to increased wear, leading to decreased sealing performance and affecting regulation reliability. Furthermore, the regulating structure is complex, making it difficult to quickly respond to changes in airflow resistance, and lacks specific wear-resistant designs for dust scouring, resulting in a high failure rate in high-concentration dust environments. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a wear-resistant resistance balancer for dust removal systems to solve the problems mentioned in the background. This utility model has a novel structure. By installing a wear-resistant bushing inside the cylindrical valve body, it directly contacts the dust-laden airflow, effectively protecting the valve body from wear. The guide plate optimizes the airflow pattern, reducing the scouring force of dust on the components. The positioning and limiting structure avoids additional friction caused by component loosening, extending the equipment maintenance cycle.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a wear-resistant resistance balancer for a dust removal system, comprising a cylindrical valve body, wherein mounting flanges are fixedly connected to the openings at both ends of the cylindrical valve body, a first inner pipe section is provided at the openings at both ends of the cylindrical valve body, a second inner pipe section is provided in the middle of the cylindrical valve body between the two first inner pipe sections, a fixing frame is fixedly connected to both sides of the outer wall of the middle of the cylindrical valve body, the inner cavity of the two fixing frames extends into the interior of the second inner pipe section and forms a communication structure with it, a valve plate that slidably engages with the second inner pipe section is provided in the inner cavity of the two fixing frames, an adjustment component is provided between the valve plate and the cylindrical valve body, and wear-resistant bushings that fit against the inner walls of the first and second inner pipe sections are provided at both ends of the cylindrical valve body.

[0005] Furthermore, both sides of the first inner pipe section are flared, and the small diameter ends of the two sides of the first inner pipe section are respectively fixedly connected to the two ends of the second inner pipe section, while the large diameter ends of the two sides of the first inner pipe section are fixedly connected to the mounting flanges on both sides.

[0006] Furthermore, the inner wall of the middle part of the second inner pipe section is provided with a displacement groove that communicates with the inner cavity of the fixed frame. The valve plate is slidably engaged with the displacement groove. A radially arranged sealing block is fixedly connected to the inner wall of the displacement groove. Sealing grooves that cooperate with the sealing blocks are provided on the opposite sides of the two valve plates.

[0007] Furthermore, the inner wall of the second inner pipe section is provided with a positioning groove, and the outer walls of the two wear-resistant bushings are fixedly connected with positioning strips that slide in cooperation with the positioning grooves. The two wear-resistant bushings are fixedly connected with T-shaped limiting blocks on the side facing the valve plate, and T-shaped limiting grooves that slide in cooperation with the T-shaped limiting blocks are provided on both sides of the valve plate.

[0008] Furthermore, the inner wall of the wear-resistant bushing is fixedly connected with a plurality of circumferentially arranged guide plates, and the openings of the two fixed frames located outside the cylindrical valve body are provided with closing covers, and the two sides of the closing covers are provided with mounting bolts that are threadedly engaged with the fixed frames.

[0009] Furthermore, the adjusting assembly includes a rotating groove formed on the outer wall of the cylindrical valve body and extending into the sealing block. An adjusting rod is rotatably fitted on the inner wall of the rotating groove. A hollow groove is formed inside the sealing block, and a bidirectional screw is rotatably fitted on the inner wall of the hollow groove, extending to its exterior and perpendicular to it.

[0010] Furthermore, both the end of the adjusting rod located in the slot and the periphery of the bidirectional screw located in the slot are fixedly connected to bevel gears, and the two bevel gears mesh with each other.

[0011] Furthermore, the two valve plates are radially perforated with threaded grooves, and the threads on both sides of the bidirectional screw respectively engage with the threaded grooves on the two valve plates.

[0012] The beneficial effects of this utility model are:

[0013] 1. This dust removal system uses a wear-resistant resistance balancer that directly contacts the dust-laden airflow by installing a wear-resistant bushing inside the cylindrical valve body, effectively protecting the valve body from wear. The guide plate optimizes the airflow pattern, reducing the scouring force of dust on the components. The positioning and limiting structure avoids additional friction caused by loose components, extending the equipment maintenance cycle.

[0014] 2. This dust removal system uses a wear-resistant resistance balancer to achieve synchronous reverse sliding of the valve plates through a bidirectional screw and bevel gear transmission structure. This allows for precise control of the flow cross-sectional area, rapid balance of the resistance of each branch of the dust removal system, ensuring uniform air volume distribution and improving dust removal efficiency. The design of the trumpet-shaped first inner pipe section and the mounting flange can be adapted to different specifications of dust removal pipes, making installation convenient. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the overall structure of a wear-resistant resistance balancer for a dust removal system according to the present invention;

[0016] Figure 2 This is a side sectional view of the cylindrical valve body of this utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the wear-resistant bushing of this utility model;

[0018] Figure 4 This utility model Figure 2 -Enlarged structural diagram at point A;

[0019] Figure 5 This utility model Figure 2 - Enlarged structural diagram at point B.

[0020] In the diagram: 1. Cylindrical valve body; 2. Mounting flange; 3. First inner pipe section; 4. Second inner pipe section; 5. Fixing frame; 6. Valve plate; 7. Adjusting assembly; 701. Rotating groove; 702. Adjusting rod; 703. Empty groove; 704. Double-acting screw; 705. Bevel gear; 706. Threaded groove; 8. Wear-resistant bushing; 9. Displacement groove; 10. Sealing block; 11. Sealing groove; 12. Positioning groove; 13. Positioning strip; 14. T-shaped limit block; 15. T-shaped limit groove; 16. Guide plate; 17. Closing cover; 18. Mounting bolt. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please refer to Figures 1 to 5 This utility model provides a technical solution: a wear-resistant resistance balancer for a dust removal system, comprising a cylindrical valve body 1, with mounting flanges 2 fixedly connected to the openings at both ends of the cylindrical valve body 1, a first inner pipe section 3 provided at the openings at both ends of the cylindrical valve body 1, a second inner pipe section 4 located between the two first inner pipe sections 3 in the middle of the cylindrical valve body 1, fixing frames 5 fixedly connected to both sides of the outer wall of the middle of the cylindrical valve body 1, the inner cavities of the two fixing frames 5 extending into the interior of the second inner pipe section 4 and forming a communication structure with it, valve plates 6 slidably fitted in the inner cavities of the two fixing frames 5 and cooperating with the second inner pipe section 4, an adjusting component 7 provided between the valve plate 6 and the cylindrical valve body 1, and wear-resistant bushings 8 provided at both ends of the cylindrical valve body 1 that fit against the inner walls of the first inner pipe section 3 and the second inner pipe section 4.

[0023] In this embodiment, both sides of the first inner pipe section 3 are trumpet-shaped, and the small-diameter ends of the two sides of the first inner pipe section 3 are respectively fixedly connected to the two ends of the second inner pipe section 4. The large-diameter ends of the two sides of the first inner pipe section 3 are fixedly connected to the two side mounting flanges 2. The inner wall of the middle part of the second inner pipe section 4 is provided with a displacement groove 9 that communicates with the inner cavity of the fixing frame 5. The valve plate 6 slides with the displacement groove 9. The inner wall of the displacement groove 9 is fixedly connected with a radially arranged sealing block 10. The two valve plates 6 are provided with sealing grooves 11 that cooperate with the sealing block 10 on opposite sides. The inner wall of the second inner pipe section 4 is provided with a displacement groove 9 that communicates with the inner cavity of the fixing frame 5. The valve plate 6 has a positioning groove 12. The outer walls of the two wear-resistant bushings 8 are fixedly connected with positioning strips 13 that slide with the positioning groove 12. The two wear-resistant bushings 8 are fixedly connected with T-shaped limiting blocks 14 on the side facing the valve plate 6. The valve plate 6 has T-shaped limiting grooves 15 on both sides that slide with the T-shaped limiting blocks 14. The inner walls of the wear-resistant bushings 8 are fixedly connected with a plurality of circumferentially arranged guide plates 16. The openings of the two fixing frames 5 located outside the cylindrical valve body 1 are provided with closing covers 17. The two sides of the closing covers 17 are provided with mounting bolts 18 that thread with the fixing frames 5.

[0024] Specifically, the sealing block 10 in the displacement groove 9 cooperates with the sealing groove 11 of the valve plate 6 to ensure the sealing performance when the valve plate is closed and prevent air leakage; the sliding cooperation between the T-shaped limiting block 14 and the T-shaped limiting groove 15 restricts the displacement direction of the valve plate 6 and prevents deviation during adjustment; the wear-resistant bushing 8 that is attached to the inner wall of the first inner pipe section 3 and the second inner pipe section 4 directly bears the dust scouring, and the guide plate 16 on its surface can guide the airflow to flow smoothly and reduce the wear of the bushing by local turbulence; the positioning strip 13 cooperates with the positioning groove 12 to ensure that the wear-resistant bushing 8 is installed firmly and to avoid additional wear caused by vibration.

[0025] In this embodiment, the adjusting component 7 includes a rotating groove 701 formed on the outer wall of the cylindrical valve body 1 and extending into the sealing block 10. An adjusting rod 702 is rotatably fitted on the inner wall of the rotating groove 701. A hollow groove 703 is formed inside the sealing block 10. A bidirectional screw 704 is rotatably fitted on the inner wall of the hollow groove 703, extending to its exterior and perpendicular to it. One end of the adjusting rod 702 located in the hollow groove 703 and the periphery of the bidirectional screw 704 located in the hollow groove 703 are both fixedly connected to bevel gears 705. The two bevel gears 705 mesh with each other. Threaded grooves 706 are formed radially through the two valve plates 6. The threads on both sides of the bidirectional screw 704 are threadedly fitted into the threaded grooves 706 on the two valve plates 6, respectively.

[0026] Specifically, by adjusting the valve plate 6, the flow cross-sectional area of ​​the second inner pipe section 4 is changed, thereby balancing the airflow resistance. Specifically, when the adjusting rod 702 is rotated, the bevel gear 705 at its end drives the bevel gear 705 on the bidirectional screw 704 to rotate synchronously, causing the bidirectional screw 704 to rotate. Since the threads on both sides of the bidirectional screw 704 are opposite and respectively cooperate with the thread grooves 706 of the two valve plates 6, the two valve plates 6 can be driven to slide relative to or away from each other along the displacement groove 9. By changing the contact area between the valve plate 6 and the inner wall of the second inner pipe section 4, the size of the airflow channel is precisely controlled, thereby achieving resistance adjustment.

[0027] During the operation of the dust removal system, the dust-laden airflow enters the cylindrical valve body 1 from the mounting flange 2 at one end of the device. It then flows smoothly into the second inner pipe section 4 in the middle through the guiding effect of the first inner pipe section 3 (in the shape of a trumpet). When the system needs to adjust the airflow resistance, the operator rotates the adjusting rod 702 of the adjusting assembly 7, causing the adjusting rod 702 to rotate within the rotating groove 701. The bevel gear 705 at its end, located in the empty groove 703, rotates accordingly, driving the bevel gear 705 on the bidirectional screw 704, which meshes with it, to rotate synchronously. This, in turn, causes the bidirectional screw 704 to rotate within the empty groove 703. Because the threads on both sides of the bidirectional screw 704 are opposite in direction and are threaded into the threaded grooves 706 of the two valve plates 6 respectively, the rotating bidirectional screw 704 drives the valve plates 6 on both sides to slide relative to or away from each other along the displacement groove 9 of the second inner pipe section 4. When the valve plates 6 are relatively close, their contact area with the inner wall of the second inner pipe section 4 increases, the flow cross-sectional area decreases, and the airflow resistance decreases. The flow cross-sectional area increases as the valve plates 6 move away from each other, reducing airflow resistance and thus achieving precise adjustment of system resistance. During adjustment, the T-shaped limiting block 14 on the wear-resistant bushing 8 slides along the T-shaped limiting groove 15 of the valve plate 6, limiting the displacement direction of the valve plate and ensuring adjustment stability. After passing through the second inner pipe section 4, the dust-laden airflow is guided through the first inner pipe section 3 at the other end and finally flows out from the outlet mounting flange 2. During this process, the wear-resistant bushing 8 directly bears the dust scouring, and the guide plate 16 on its inner wall guides the airflow to flow smoothly to reduce turbulent wear. The cooperation between the positioning strip 13 and the positioning groove 12 ensures that the wear-resistant bushing 8 is firmly installed, avoiding vibration that aggravates wear. The closed cover 17 on the outside of the fixed frame 5 is fixed by the mounting bolts 18, providing a closed sliding space for the valve plate 6 and further ensuring the stable operation of the adjustment structure. Through the above process, the device achieves dynamic balance of dust removal system resistance and long-term wear protection of components.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A wear-resistant resistance balancer for a dust removal system, comprising a cylindrical valve body (1), characterized in that: The cylindrical valve body (1) has mounting flanges (2) fixedly connected to the openings at both ends. The cylindrical valve body (1) has a first inner pipe section (3) at the openings at both ends. The cylindrical valve body (1) has a second inner pipe section (4) located between the first inner pipe sections (3) on both sides in the middle. The cylindrical valve body (1) has a fixed frame (5) fixedly connected to both sides of the outer wall in the middle. The inner cavity of the fixed frame (5) on both sides extends into the interior of the second inner pipe section (4) and forms a communication structure with it. The inner cavity of the fixed frame (5) on both sides is slidably fitted with a valve plate (6) that cooperates with the second inner pipe section (4). An adjustment component (7) is provided between the valve plate (6) and the cylindrical valve body (1). The cylindrical valve body (1) has wear-resistant bushings (8) at both ends that fit against the inner walls of the first inner pipe section (3) and the second inner pipe section (4).

2. The wear-resistant resistance balancer for a dust removal system according to claim 1, characterized in that: Both sides of the first inner pipe section (3) are flared, and the small diameter ends of the first inner pipe section (3) on both sides are fixedly connected to the two ends of the second inner pipe section (4), and the large diameter ends of the first inner pipe section (3) on both sides are fixedly connected to the mounting flanges (2) on both sides.

3. The wear-resistant resistance balancer for a dust removal system according to claim 2, characterized in that: The inner wall of the middle part of the second inner pipe section (4) is provided with a displacement groove (9) that communicates with the inner cavity of the fixed frame (5). The valve plate (6) slides with the displacement groove (9). The inner wall of the displacement groove (9) is fixedly connected with a radially arranged sealing block (10). The two valve plates (6) are provided with sealing grooves (11) that cooperate with the sealing block (10) on opposite sides.

4. The wear-resistant resistance balancer for a dust removal system according to claim 3, characterized in that: The inner wall of the second inner pipe section (4) is provided with a positioning groove (12), and the outer walls of the two wear-resistant bushings (8) are fixedly connected with positioning strips (13) that slide in cooperation with the positioning grooves (12). The two wear-resistant bushings (8) are fixedly connected with T-shaped limiting blocks (14) on the side facing the valve plate (6). The two sides of the valve plate (6) are provided with T-shaped limiting grooves (15) that slide in cooperation with the T-shaped limiting blocks (14).

5. A wear-resistant resistance balancer for a dust removal system according to claim 4, characterized in that: The inner wall of the wear-resistant bushing (8) is fixedly connected with a plurality of circumferentially arranged guide plates (16). The two fixed frames (5) are provided with closing covers (17) at the openings outside the cylindrical valve body (1). The two sides of the closing covers (17) are provided with mounting bolts (18) that are threadedly engaged with the fixed frames (5).

6. A wear-resistant resistance balancer for a dust removal system according to claim 3, characterized in that: The adjusting assembly (7) includes a rotating groove (701) opened on the outer wall of the cylindrical valve body (1) and extending into the sealing block (10). An adjusting rod (702) is rotatably fitted on the inner wall of the rotating groove (701). A hollow groove (703) is opened inside the sealing block (10). A bidirectional screw (704) is rotatably fitted on the inner wall of the hollow groove (703) and extends to its outside and is arranged perpendicular to it.

7. A wear-resistant resistance balancer for a dust removal system according to claim 6, characterized in that: The adjusting rod (702) is fixedly connected to a bevel gear (705) at one end in the slot (703) and the two bevel gears (705) are fixedly connected to the periphery of the double screw (704) in the slot (703), and the two bevel gears (705) mesh with each other.

8. A wear-resistant resistance balancer for a dust removal system according to claim 7, characterized in that: The two valve plates (6) are radially perforated with threaded grooves (706), and the threads on both sides of the bidirectional screw (704) are respectively threaded into the threaded grooves (706) on the two valve plates (6).

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