Valve roller carrier seal

Abstract

The utility model discloses a valve roller bracket sealing structure belongs to the roller bracket protection technical field of waste gas combustion furnace, including roller bracket and two valve plates, two valve plates set up in one side of roller bracket, sealing protection mechanism is used for the protection of the sealing protection mechanism of roller bracket inside setting in one side of roller bracket, wherein, sealing protection mechanism includes two rollers of setting in the inside of roller bracket, one side of two rollers is fixedly connected with two valve plates respectively, the outside of roller is provided with protection assembly, and the inside of protection assembly is provided with filling assembly. Through above -mentioned mode, through setting sealing protection mechanism in both sides of roller bracket, the filling assembly is built -in to the protection assembly wrapping roller, and dynamic isolation corrosive flue gas and dust erosion, effectively increase the service life of roller, and filling assembly and protection assembly can be quickly disassembled, and the replacement is convenient, is favorable to daily maintenance.

Description

Technical Field

[0001] This utility model relates to the field of roller bracket protection technology for waste gas combustion furnaces, and specifically to a valve roller bracket sealing structure. Background Technology

[0002] Regenerative thermal oxidation (RTO) devices are widely used for the efficient purification of waste gas containing volatile organic compounds (VOCs). The core process relies on the reliable switching of valves to introduce waste gas into a ceramic regenerator for high-temperature oxidation, and then switch to another regenerator to recover heat.

[0003] Currently, RTO devices often use roller brackets to open and close valve plates. However, when existing RTO devices are turned on, the intracranial exhaust gas contains acid or sulfides. Ordinary metal brackets and rolling elements are easily corroded, causing valve jamming or failure. The flue gas can easily come into contact with the rollers, thereby accelerating the wear of the rollers.

[0004] Based on this, the present invention designs a valve roller bracket sealing structure to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a valve roller bracket sealing structure.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A valve roller bracket sealing structure includes a roller bracket and two valve plates, the two valve plates being disposed on one side of the roller bracket; a sealing protection mechanism for protecting the interior of the roller bracket, the sealing protection mechanism being disposed on one side of the roller bracket; wherein, the sealing protection mechanism includes two rollers disposed inside the roller bracket, one side of each of the two rollers being fixedly connected to the two valve plates respectively, a protective component being disposed on the outer side of the rollers, and a filling component being disposed inside the protective component.

[0008] Furthermore, the protective component includes a guide rail fixedly mounted on the surface of the roller bracket, two rollers slidably mounted inside the guide rail, and a gap is provided between the two rollers and the guide rail. Two packing sealing boxes are sleeved on the outer side of the rollers, and one side of the packing sealing box is located at the gap between the rollers and the guide rail.

[0009] Furthermore, the packing seal box is configured in a U-shape, and the outer side of the packing seal box slides in contact with the inner wall of the guide rail.

[0010] Furthermore, a splicing plate is fixedly installed on one side of each adjacent packing sealing box, and the same limiting frame is fitted on the outer side of the two splicing plates.

[0011] Furthermore, the two splicing plates are configured in an L-shape, the limiting frame is fitted around the outside of the two splicing plates, and positioning grooves are provided on the sides of the two splicing plates that are far apart from each other. Two locking strips are fixedly connected to the inner wall of the limiting frame, and the two locking strips are respectively engaged with the two positioning grooves.

[0012] Furthermore, a push rod bracket is provided on one side of the roller bracket, and an electric push rod is fixedly installed on the top of the push rod bracket. A coupling is fixedly installed on the output end of the electric push rod, and two connecting rods are rotatably installed on the outer side of the coupling. The two connecting rods are respectively rotatably connected to the two rollers.

[0013] Furthermore, the filling assembly includes filling blocks located inside two adjacent filling seal boxes, and both filling blocks are slidably connected to the corresponding filling seal boxes.

[0014] Furthermore, a mating block is fixedly connected to the surface of one side of the packing block, and a mating groove is opened on the surface of the other side of the packing block, with the mating block slidably connected to the adjacent mating groove.

[0015] Beneficial effects

[0016] 1. By setting a sealing and protective mechanism on both sides of the roller bracket, the protective components are wrapped around the roller and filled with internal filling components, which dynamically isolates the corrosion of corrosive fumes and dust, effectively increasing the service life of the roller. The filling components and protective components can be quickly disassembled and replaced, which is convenient for daily maintenance.

[0017] 2. The two packing blocks slide and fit inside the two adjacent packing seal boxes respectively, which can effectively block the intrusion of corrosive fumes and dust, and when the packing blocks need to be replaced, they can be directly removed from the corresponding packing seal box for replacement. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a perspective view of the main structure of a valve roller bracket sealing structure according to the present invention;

[0020] Figure 2 This is a schematic diagram of the sealing and protection mechanism of a valve roller bracket sealing structure according to the present invention;

[0021] Figure 3This is a schematic diagram of the protective component structure of a valve roller bracket sealing structure according to the present invention;

[0022] Figure 4 This is a schematic diagram of the filling component structure of a valve roller bracket sealing structure according to the present invention;

[0023] Figure 5 This is a schematic diagram of the installation structure of the roller bracket and valve plate of the valve roller bracket sealing structure according to this utility model.

[0024] The labels in the diagram represent:

[0025] 100. Roller bracket; 110. Push rod bracket; 200. Valve plate; 300. Sealing and protection mechanism; 310. Roller; 320. Protective component; 321. Guide rail; 322. Packing seal box; 323. Electric push rod; 324. Coupling; 325. Connecting rod; 326. Splicing plate; 327. Limit frame; 328. Locking strip; 330. Filling component; 331. Packing block; 332. Connecting block. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] The present invention will be further described below with reference to the embodiments.

[0028] In some embodiments, please refer to the appendix to the instruction manual. Figure 1-5 A valve roller bracket sealing structure includes a roller bracket 100 and two valve plates 200, the two valve plates 200 being disposed on one side of the roller bracket 100; a sealing protection mechanism 300, used to protect the interior of the roller bracket 100, is disposed on one side of the roller bracket 100; wherein, the sealing protection mechanism 300 includes two rollers 310 disposed inside the roller bracket 100, one side of the two rollers 310 being fixedly connected to the two valve plates 200 respectively, a protective component 320 being disposed on the outer side of the rollers 310, and a filling component 330 being disposed inside the protective component 320.

[0029] In this embodiment of the utility model, by providing sealing and protective mechanisms 300 on both sides of the roller bracket 100, wherein the protective component 320 completely covers the roller 310 and forms a dynamic sealing isolation layer through the built-in filling component 330, the corrosive fumes and dust are effectively prevented from directly eroding the roller 310 and the internal structure of the bracket, thereby significantly improving the corrosion resistance of the roller 310 in harsh working environments and extending the overall service life of the roller bracket 100. At the same time, the filling component 330 and the protective component 320 can be quickly disassembled and replaced, which is convenient for daily inspection and maintenance.

[0030] It should be noted that the inner side of the protective component 320 of this utility model and the roller 310 still retain the same sliding gap and movement trajectory as the original roller bracket 100 design, without the need to make substantial changes to the original structure. At the same time, the flexible wear-resistant material used in the filling component 330 can be accurately filled into the sealing gap, ensuring that the roller 310 can effectively seal and protect during movement without generating frictional resistance or jamming, thus ensuring the smoothness and reliability of the structure operation.

[0031] It should be noted that the roller bracket 100, as a key load-bearing component of the valve switching mechanism inside the RTO regenerative thermal oxidizer, is usually installed in the valve switching area at the bottom or middle of the RTO body. It works in conjunction with multiple valve plates 200 located below the furnace body to guide the airflow to switch into different heat storage zones according to a predetermined path.

[0032] It should be noted that the outer side of the valve plate 200 is typically equipped with a reinforcing plate to enhance structural strength and sealing stability, as well as a retaining ring for limiting and guiding the valve plate 200. The reinforcing plate is tightly installed on the outer side of the valve plate 200, which can improve the overall rigidity of the valve plate 200 under the impact of high-temperature airflow or frequent opening and closing actions, preventing it from warping or deforming, and ensuring a stable and reliable fit with the roller bracket 100. The retaining ring of the valve plate 200 is set at the edge between the valve plate 200 and the guide rail or adjacent structure, which is used to limit the offset path of the valve plate 200 during sliding or switching, preventing jamming or sealing failure due to misalignment. These supporting structures, together with the sealing and protection mechanism 300 set in this utility model, further ensure the operational stability and safety of the RTO device in long-term high-temperature, high-corrosion, and high-frequency operating environments.

[0033] In some embodiments, such as Figure 2 and Figure 3As shown, in a preferred embodiment of the present invention, the protective component 320 includes a guide rail 321 fixedly installed on the surface of the roller bracket 100, two rollers 310 slidably installed inside the guide rail 321, and a gap is provided between the two rollers 310 and the guide rail 321. Two packing sealing boxes 322 are sleeved on the outer side of the rollers 310, and one side of the packing sealing box 322 is located at the gap between the rollers 310 and the guide rail 321.

[0034] In this embodiment of the utility model, after the valve plate 200 is opened, the packing seal box 322 is set in a U-shaped structure in the gap between the roller 310 and the guide rail 321. It can move smoothly and synchronously with the roller 310, thereby automatically sealing and isolating the gap between the roller 310 and the guide rail 321, dynamically intercepting exhaust gas and dust, and completely preventing corrosive media from directly contacting the roller 310, thus strengthening the overall sealing and protection effect.

[0035] The packing seal box 322 is U-shaped, and the outer side of the packing seal box 322 slides in contact with the inner wall of the guide rail 321.

[0036] In this embodiment of the utility model, the packing sealing box 322 adopts a U-shaped structure, and its outer inner wall forms a sliding contact with the guide rail 321. When the roller 310 moves along the rail, the packing sealing box 322 can move synchronously without additional driving or adjustment, thus maintaining the sealing protection of the gap between the roller 310 and the rail, ensuring that corrosive fumes and dust cannot enter, and improving the continuity and reliability of protection.

[0037] Each of the adjacent packing seal boxes 322 has a splicing plate 326 fixedly installed on one side, and the same limiting frame 327 is fitted on the outer side of the two splicing plates 326.

[0038] In this embodiment of the utility model, adjacent packing seal boxes 322 are connected to each other by their respective splicing plates 326 and are fixed by the limiting frame 327 as a whole to form an integrated sealing and protection unit. This structure not only ensures the precise docking and sealing continuity between each packing seal box 322, but also realizes modular assembly. The quick-locking design of the limiting frame 327 makes the disassembly and assembly of the splicing plate 326 and the packing seal box 322 only require simple plugging and unplugging actions, which greatly shortens the maintenance and replacement cycle.

[0039] The two splicing plates 326 are set in an L-shape. The limiting frame 327 is fitted on the outside of the two splicing plates 326. The two splicing plates 326 are provided with positioning grooves on the side that is far away from each other. The inner wall of the limiting frame 327 is fixedly connected with two clips 328, and the two clips 328 are respectively engaged with the two positioning grooves.

[0040] In this embodiment of the utility model, the two L-shaped splicing plates 326 and the limiting frame 327 are fastened to the positioning groove on the splicing plate 326 by the clip 328, which can achieve rapid assembly without additional fasteners, and significantly improves the assembly and disassembly efficiency of the protective component 320.

[0041] A push rod bracket 110 is provided on one side of the roller bracket 100. An electric push rod 323 is fixedly installed on the top of the push rod bracket 110. A coupling 324 is fixedly installed on the output end of the electric push rod 323. Two connecting rods 325 are rotatably installed on the outside of the coupling 324. The two connecting rods 325 are rotatably connected to the two rollers 310 respectively.

[0042] In this embodiment of the utility model, by setting an electric push rod 323 on the top of the push rod bracket 110 and using a coupling 324 to synchronously distribute the thrust to the connecting rods 325 on both sides, the synchronous rotation of the two connecting rods 325 and the rollers 310 is achieved. Without the need for additional connecting rods or pneumatic systems, the rollers 310 can be precisely driven to move away from or towards each other, thereby driving the valve plate 200 to open and close smoothly. The electric push rod 323 has high-precision positioning and self-locking functions. Through the coupling 324 and the connecting rods 325, the rollers 310 can be synchronously and accurately driven, thereby realizing the rapid and precise opening and closing action of the valve plate 200 and ensuring the sealing stability of the valve plate 200 at any opening degree. This significantly improves the adjustment accuracy and response speed of the waste gas flow rate and greatly enhances the flow control accuracy and response speed of the system.

[0043] In some embodiments, such as Figure 2 and Figure 4 As shown, in a preferred embodiment of the present invention, the filling component 330 includes a filling block 331 located inside two adjacent filling sealing boxes 322, and both filling blocks 331 are slidably connected to the corresponding filling sealing boxes 322.

[0044] In this embodiment of the utility model, the packing block 331 is arranged in the adjacent packing sealing box 322 in a sliding fit manner to form a multi-layer dynamic seal, which can effectively and completely prevent corrosive fumes and dust from entering the roller bracket 100. Moreover, the packing block 331 is designed to be quick to be removed and replaced, so that the roller bracket 100 does not need to be disassembled during daily maintenance, reducing maintenance workload and downtime.

[0045] It should be noted that the packing block 331 can be made of a flexible material that is resistant to high temperature and corrosion and is self-lubricating, such as polytetrafluoroethylene composite graphite packing or fluororubber packing. It fits tightly against the inner wall of the U-shaped packing sealing box 322 and the outer circular surface of the roller 310. The length of the packing block 331 is slightly greater than the depth of the packing box to ensure that after installation, it applies a pre-tightening force to the gap between the roller 310 and the slide rail by its own elasticity, and always maintains a good seal.

[0046] A mating block 332 is fixedly connected to the surface of one side of the packing block 331, and a mating groove is opened on the surface of the other side of the packing block 331. The mating block 332 is slidably connected to the adjacent mating groove.

[0047] In this embodiment of the utility model, after the docking block 332 and the docking groove slide together, the adjacent packing blocks 331 can slide synchronously and automatically align. When two adjacent packing sealing boxes 322 are connected to each other, the connection stability is increased, effectively preventing flue gas leakage or impurity intrusion. At the same time, the plug-in structure of the docking block 332 and the docking groove facilitates quick disassembly and replacement during daily maintenance.

[0048] In this embodiment of the utility model, the electric push rod 323 drives the coupling 324 and the connecting rod 325, which synchronously drive the left and right rollers 310 installed in the guide rail 321 to move away from or towards each other, thereby realizing the smooth opening and closing of the valve plate 200. The U-shaped packing seal box 322 sleeved on the outside of the roller 310 slides and fits in contact with the guide rail 321. The high temperature resistant, corrosion resistant and self-lubricating packing block 331 slidably connected inside prevents corrosive fumes and dust from entering when the roller 310 slides. Adjacent packing seal boxes 322 are connected by the L-shaped splicing plate 326 and the retaining strip 3 on the limiting frame 327. 28 is clamped and assembled with the positioning groove to form an integrated protective unit, enabling quick plug-and-play assembly and disassembly. When the electric push rod 323 extends, the roller 310 separates synchronously within the guide rail 321, and the valve plate 200 opens. When the push rod retracts, the roller 310 closes, and the valve plate 200 closes. During the movement gap or when the valve plate 200 is stationary, the packing seal box 322 and the packing block 331 always maintain a sealing barrier to ensure no leakage. During maintenance, only the limit frame 327 needs to be removed to quickly replace the packing seal box 322 and the packing block 331 without disassembling the roller bracket 100 body, which greatly shortens downtime and maintenance time.

[0049] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A valve roller bracket sealing structure, comprising a roller bracket (100) and two valve plates (200), characterized in that: The two valve plates (200) are disposed on one side of the roller bracket (100); A sealing and protective mechanism (300) for protecting the interior of the roller bracket (100) is provided on one side of the roller bracket (100); The sealing and protective mechanism (300) includes two rollers (310) disposed inside the roller bracket (100). One side of each roller (310) is fixedly connected to two valve plates (200). A protective component (320) is disposed on the outside of the rollers (310), and a filling component (330) is disposed inside the protective component (320).

2. The valve roller bracket sealing structure according to claim 1, characterized in that, The protective component (320) includes a guide rail (321) fixedly installed on the surface of the roller bracket (100), two rollers (310) are slidably installed inside the guide rail (321), and a gap is provided between the two rollers (310) and the guide rail (321). Two packing seal boxes (322) are sleeved on the outside of the rollers (310), and one side of the packing seal box (322) is located at the gap between the rollers (310) and the guide rail (321).

3. The valve roller bracket sealing structure according to claim 2, characterized in that, The packing seal box (322) is configured in a U-shape, and the outer side of the packing seal box (322) slides in contact with the inner wall of the guide rail (321).

4. The valve roller bracket sealing structure according to claim 2, characterized in that, A splicing plate (326) is fixedly installed on one side of each of the adjacent packing sealing boxes (322), and the same limiting frame (327) is sleeved on the outer side of the two splicing plates (326).

5. The valve roller bracket sealing structure according to claim 4, characterized in that, The two splicing plates (326) are configured in an L-shape. The limiting frame (327) is sleeved on the outside of the two splicing plates (326), and positioning grooves are provided on the side of the two splicing plates (326) that are far apart from each other. Two locking strips (328) are fixedly connected to the inner wall of the limiting frame (327), and the two locking strips (328) are respectively engaged with the two positioning grooves.

6. The valve roller bracket sealing structure according to claim 1, characterized in that, A push rod bracket (110) is provided on one side of the roller bracket (100). An electric push rod (323) is fixedly installed on the top of the push rod bracket (110). A coupling (324) is fixedly installed at the output end of the electric push rod (323). Two connecting rods (325) are rotatably installed on the outside of the coupling (324). The two connecting rods (325) are rotatably connected to the two rollers (310) respectively.

7. The valve roller bracket sealing structure according to claim 2, characterized in that, The filling assembly (330) includes a filling block (331) located inside two adjacent filling sealing boxes (322), and both filling blocks (331) are slidably connected to the corresponding filling sealing box (322).

8. The valve roller bracket sealing structure according to claim 7, characterized in that, A mating block (332) is fixedly connected to the surface of one side of the packing block (331), and a mating groove is opened on the surface of the other side of the packing block (331). The mating block (332) is slidably connected to the adjacent mating groove.

Images