Sealing structure of gas dedusting filter element
By combining a sealing cap with a flexible protective cover, the problem of easy failure of the sealing structure of traditional gas dust removal filter cartridges under complex working conditions and easy damage during transportation is solved. This achieves efficient sealing and filter cartridge protection, ensuring stable system operation and extending service life.
Patent Information
- Application Number
- CN202520477436.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-18
Smart Images

Figure CN223887626U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dust filter element sealing covers, specifically a gas dust removal filter element sealing structure. Background Technology
[0002] In gas dust removal systems, the filter element is a core component, and its sealing performance directly affects dust removal efficiency and system stability. Traditional gas dust removal filter elements often employ simple compression or threaded connections for sealing. While these methods can meet basic sealing requirements, they are prone to seal failure under long-term operation or complex conditions due to factors such as vibration and temperature changes, thus affecting dust removal performance. Furthermore, filter elements often lack effective protection measures during transportation, storage, and installation, making them susceptible to impact damage, which in turn affects their service life and performance.
[0003] To address the aforementioned issues, there is an urgent market need for a gas dust collector filter sealing structure that can effectively seal the filter while providing additional protection. This structure must be easy to install and disassemble, while also possessing excellent sealing properties and durability to ensure the stable operation of the gas dust collection system. Utility Model Content
[0004] The purpose of this invention is to provide a sealing structure for a gas dust removal filter element to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a gas dust removal filter element sealing structure, including a sealing cover, which is sleeved on one end of the gas dust removal filter element. The outer ring surface of the sealing cover is integrally formed with a storage frame, and a flexible protective cover is fixed inside the storage frame. A rubber ring is fixed to one end of the flexible protective cover, and the rubber ring is sleeved on the other end of the gas dust removal filter element. When the flexible protective cover is unfolded, it protects the gas dust removal filter element.
[0006] Preferably, a plug ring is fixed to the surface of the sealing cover, and a sealing ring is fixed to the outer ring surface of the plug ring. Both the plug ring and the sealing ring are inserted into the groove at one end of the gas dust removal filter element, and the sealing ring is clamped between the gas dust removal filter element and the plug ring to produce elastic deformation.
[0007] Preferably, the sealing cover has a cylindrical structure, and the storage rack has an L-shaped cross-section and a circular plate, the height of which is equal to the height of the sealing cover.
[0008] Preferably, the side plate of the sealing cover is provided with multiple screw holes arranged around the sealing cover. A hand screw is screwed into the inside of the screw hole. After the sealing cover is fitted onto the end of the gas dust removal filter element, one end of the hand screw passes through the screw hole and is screwed into the slot. The slot is located on the outer wall of the gas dust removal filter element.
[0009] Preferably, the other end of the gas dust removal filter element is provided with a slot, which is an annular groove. After the flexible protective cover is unfolded, the rubber ring is fitted into the slot.
[0010] Preferably, a rubber retaining ring is fitted and fixed to the top of the sealing cover, and the outer diameter of the rubber retaining ring is equal to the inner diameter of the top surface of the storage rack.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] The gas dust removal filter element sealing structure proposed in this utility model achieves multiple sealing guarantees through the cooperative use of a plug ring and a first sealing ring, as well as the clamping effect of a second sealing ring within the inner ring of the sealing cover. The plug ring and the first sealing ring undergo elastic deformation when inserted into the filter element groove, tightly fitting the filter element surface and effectively preventing gas leakage. Simultaneously, the second sealing ring further enhances the sealing performance between the sealing cover and the outer wall of the filter element, ensuring stable system operation under high pressure and high flow rate conditions.
[0013] The combination of a storage rack and a flexible protective cover provides comprehensive protection for the filter element. When the sealing cap is not installed, the flexible protective cover can be folded over and fitted onto the filter element, secured in a groove at the other end of the filter element with a rubber ring, effectively preventing damage from impacts during transportation, storage, and installation. When the sealing cap needs to be installed, the flexible protective cover can be easily stored in the storage rack without affecting the normal use of the sealing cap. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a top view of the structure of this utility model;
[0016] Figure 3 for Figure 2 Sectional view of the structure at point AA;
[0017] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle;
[0018] Figure 5 for Figure 3 Enlarged schematic diagram of the structure at point B;
[0019] Figure 6 This is a schematic diagram of the sealing cap structure of this utility model;
[0020] Figure 7 for Figure 6 Front view of the structure;
[0021] Figure 8 for Figure 7 Cross-sectional view of the structure at point BB.
[0022] In the diagram: 1. Sealing cap; 2. Gas dust removal filter element; 3. Plug ring; 4. Sealing ring one; 5. Sealing ring two; 6. Storage rack; 7. Screw hole; 8. Slot; 9. Hand screw; 10. Flexible protective cover; 11. Rubber ring; 12. Card slot; 13. Rubber retaining ring. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0024] Please see Figures 1-8 This utility model provides a technical solution: a sealing structure for a gas dust removal filter element, including a sealing cover 1, which is sleeved on one end of a gas dust removal filter element 2. A plug ring 3 is fixed on the surface of the sealing cover 1, and a sealing ring 4 is fixed on the outer ring surface of the plug ring 3. Both the plug ring 3 and the sealing ring 4 are inserted into the groove at one end of the gas dust removal filter element 2, and the sealing ring 4 is clamped between the gas dust removal filter element 2 and the plug ring 3 to produce elastic deformation. A screw hole 7 is provided on the side plate of the sealing cover 1. Multiple screw holes 7 are arranged around the sealing cover 1. A hand screw 9 is screwed into the inside of the screw hole 7. After the sealing cover 1 is sleeved on the end of the gas dust removal filter element 2, one end of the hand screw 9 passes through the screw hole 7 and is screwed into the slot 8. The slot 8 is opened on the outer wall of the gas dust removal filter element 2.
[0025] Place the sealing cap 1 onto one end of the gas dust removal filter element 2. At this time, the plug ring 3 is inserted into the inside of the sealing cap 1, and the sealing ring 4 is clamped between the plug ring 3 and the gas dust removal filter element 2, improving the sealing performance of the connection between the sealing cap 1 and the gas dust removal filter element 2. Fix the sealing ring 5 at the inner ring opening of the sealing cap 1. The sealing ring 5 is clamped between the outer wall of the sealing cap 1 and the gas dust removal filter element 2, further improving the sealing performance of the connection between the sealing cap 1 and the gas dust removal filter element 2. Tighten the hand screw 9 through the screw hole 7 between the storage rack 6 and the sealing cap 1 and screw it into the slot 8 to achieve a reinforced connection between the sealing cap 1 and the gas dust removal filter element 2.
[0026] The outer ring of the sealing cover 1 is integrally formed with a storage rack 6. A flexible protective cover 10 is fixed inside the storage rack 6. A rubber ring 11 is fixed to one end of the flexible protective cover 10. The rubber ring 11 is fitted onto the other end of the gas dust removal filter element 2. When the flexible protective cover 10 is unfolded, it protects the gas dust removal filter element 2. The sealing cover 1 has a cylindrical structure. The storage rack 6 has an L-shaped cross-section and a height equal to the height of the sealing cover 1. A slot 12 is opened at the other end of the gas dust removal filter element 2. The slot 12 is an annular groove. When the flexible protective cover 10 is unfolded, the rubber ring 11 is fitted into the slot 12. A rubber retaining ring 13 is fitted and fixed to the top of the sealing cover 1. The outer diameter of the rubber retaining ring 13 is equal to the inner diameter of the top surface of the storage rack 6.
[0027] When the sealing cover 1 is not installed, the rubber retaining ring 13 is turned outward towards the inner ring opening, and one end of the flexible protective cover 10 is pulled out from the storage rack 6. Then, the flexible protective cover 10 is turned outward and stretched to fit onto the gas dust removal filter element 2. The rubber ring 11 is then fitted into the slot 12. At this time, the flexible protective cover 10 unfolds to protect the gas dust removal filter element 2, preventing it from being bumped when placed or operated. When the sealing cover 1 needs to be installed, the flexible protective cover 10 is simply inserted into the storage rack 6 for storage. In this way, the sealing cover 1 not only seals one end of the gas dust removal filter element 2, but also works with the storage rack 6 to store the flexible protective cover 10.
[0028] The installation and usage process of the gas dust collector filter element sealing structure is as follows:
[0029] Place the gas dust collector filter element 2 in the designated position, ensuring that one end of its slot faces upwards, ready for the sealing cap to be fitted. Align the sealing cap 1 with the slot at one end of the gas dust collector filter element 2, ensuring that the plug ring 3 and sealing ring 4 can be smoothly inserted into the slot. Slowly slide the sealing cap 1 onto one end of the gas dust collector filter element 2 until the plug ring 3 and sealing ring 4 are fully inserted into the slot. At this point, sealing ring 4 will undergo elastic deformation between the plug ring 3 and the gas dust collector filter element 2, forming a preliminary seal. At the inner ring opening of the sealing cap 1, ensure that sealing ring 5 is also clamped between the sealing cap 1 and the outer wall of the gas dust collector filter element 2 to further enhance the seal. Locate the multiple screw holes 7 on the side plate of the sealing cap 1 and prepare the hand screws 9. Insert the hand screws 9 one by one through the screw holes 7 and then screw them into the slots 8 on the outer wall of the gas dust collector filter element 2. Ensure that all hand screws 9 are tightened in place to reinforce the connection between the sealing cap 1 and the gas dust collector filter element 2.
[0030] Fold the rubber retaining ring 13 outwards towards the inner opening so that one end of the flexible protective cover 10 can be easily pulled out of the storage rack 6. After folding the flexible protective cover 10 outwards, stretch it and fit it onto the gas dust removal filter element 2, ensuring that the rubber ring 11 is tightly fitted into the slot 12 at the other end of the gas dust removal filter element 2. At this time, the flexible protective cover 10 unfolds, providing protection for the gas dust removal filter element 2. When it is necessary to install the sealing cover 1, remove the flexible protective cover 10 from the gas dust removal filter element 2 and insert it into the storage rack 6 for storage. If the flexible protective cover 10 needs to be used again, repeat the above pre-unfolding steps.
[0031] 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 sealing structure for a gas dust collector filter element, comprising a sealing cap (1), the sealing cap (1) being sleeved on one end of a gas dust collector filter element (2), characterized in that: The outer ring of the sealing cover (1) is integrally formed with a storage rack (6), and a flexible protective cover (10) is fixed inside the storage rack (6). A rubber ring (11) is fixed at one end of the flexible protective cover (10), and the rubber ring (11) is sleeved on the other end of the gas dust removal filter element (2). The flexible protective cover (10) unfolds to protect the gas dust removal filter element (2).
2. The gas dust removal filter element sealing structure according to claim 1, characterized in that: The sealing cover (1) is fixed with a plug ring (3), and a sealing ring (4) is fixed on the outer ring surface of the plug ring (3). Both the plug ring (3) and the sealing ring (4) are inserted into the groove at one end of the gas dust removal filter element (2), and the sealing ring (4) is clamped between the gas dust removal filter element (2) and the plug ring (3) to produce elastic deformation.
3. The gas dust removal filter element sealing structure according to claim 1, characterized in that: The sealing cover (1) has a cylindrical structure, and the storage rack (6) has an L-shaped cross-section. The height of the storage rack (6) is equal to the height of the sealing cover (1).
4. The gas dust removal filter element sealing structure according to claim 1, characterized in that: The sealing cover (1) has screw holes (7) on its side plate. There are multiple screw holes (7) arranged around the sealing cover (1). A hand screw (9) is screwed into the inside of the screw hole (7). After the sealing cover (1) is fitted onto the end of the gas dust removal filter element (2), one end of the hand screw (9) passes through the screw hole (7) and is screwed into the slot (8). The slot (8) is located on the outer wall of the gas dust removal filter element (2).
5. The gas dust removal filter element sealing structure according to claim 1, characterized in that: The other end of the gas dust removal filter element (2) is provided with a slot (12), which is an annular groove. After the flexible protective cover (10) is unfolded, the rubber ring (11) is fitted in the slot (12).
6. The gas dust removal filter element sealing structure according to claim 1, characterized in that: A rubber retaining ring (13) is fitted and fixed at the top of the sealing cover (1), and the outer diameter of the rubber retaining ring (13) is equal to the inner diameter of the top surface of the storage rack (6).