An inner floating disc seal structure with enhanced sealing performance

By improving the design of the internal floating roof sealing structure, the outer sealing ring is in close contact with the inner wall of the oil tank, which solves the problem of poor sealing effect and achieves enhanced sealing performance and convenient rapid assembly.

CN224361765UActive Publication Date: 2026-06-16LIANYUNGANG SHENGXING PETROCHEMICAL EQUIPMENT MANUFACTURING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LIANYUNGANG SHENGXING PETROCHEMICAL EQUIPMENT MANUFACTURING CO LTD
Filing Date
2025-06-27
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

The existing internal floating roof sealing structure does not make tight contact with the inner wall of the oil tank, resulting in poor sealing performance and making it inconvenient to assemble quickly.

Method used

The design incorporates an inner tank, assembly plates, an outer support ring, and an outer sealing ring. These components are fixed together with connecting bolts. The outer sealing ring is in close contact with the inner wall of the oil tank, and the structural strength is enhanced by the support plates and hollow collar.

Benefits of technology

It achieves a significant improvement in sealing performance, prevents oil evaporation, and its structure facilitates quick assembly and liquid removal operations.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224361765U_ABST
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Abstract

The utility model relates to the technical field of inner floating disc sealing structure, and specifically relates to an inner floating disc sealing structure with enhanced sealing performance, which comprises an inner barrel body, an assembling plate, an outer supporting ring and an outer convex pipe, the outer periphery of the inner barrel body is welded with supporting plates at equal distances, and the other end of each supporting plate is welded with an outer supporting ring, and the outer side of the outer supporting ring is welded with a blocking ring at the middle part; the outer side of the outer supporting ring and the two sides of the blocking ring are both sleeved with outer sealing rings, and the two sides of the inner barrel body are both clamped and fixed with assembling plates through connecting bolts; the inner floating disc sealing structure is in close contact with the inner wall of the oil tank through two groups of outer sealing rings, greatly plays a sealing effect, prevents oil evaporation, and the floating disc structure is convenient for quick assembling.
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Description

Technical Field

[0001] This utility model relates to the technical field of internal floating disk sealing structure, specifically to an internal floating disk sealing structure with enhanced sealing performance. Background Technology

[0002] An internal floating roof is a floating top cover that floats on the surface of the oil in a tank and rises and falls with the oil. It is a floating sealing device installed inside the oil tank. This keeps the internal space of the oil tank isolated from the atmosphere, reduces oil evaporation loss, and prevents oil and gas leakage from causing environmental pollution. An internal floating roof typically consists of the floating roof body, sealing device, guiding device, buoyancy element, etc.

[0003] The existing internal floating roof sealing structure cannot make close contact with the inner wall of the oil tank, resulting in poor sealing effect, easy oil evaporation, and the floating roof structure is not convenient for quick assembly. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides an internal floating roof sealing structure with enhanced sealing performance. The internal floating roof sealing structure has two sets of external sealing rings that are in close contact with the inner wall of the oil tank, which greatly improves the sealing effect and prevents oil evaporation. In addition, this floating roof structure is easy to assemble quickly.

[0005] The technical solution adopted by this utility model to solve its technical problem is an internal floating disk sealing structure with enhanced sealing performance, including an inner barrel, an assembly plate, an outer support ring and an outer protruding tube. The outer periphery of the inner barrel is welded with support plates at equal intervals and the other end of the support plate is welded with an outer support ring. A baffle ring is welded to the middle part of the outer side of the outer support ring.

[0006] An outer sealing ring is fitted on the outside of the outer support ring and on both sides of the partition ring. The two sides of the inner barrel are fixed with assembly plates by connecting bolts.

[0007] By adopting the above technical solution, the internal floating roof sealing structure is in close contact with the inner wall of the oil tank through two sets of external sealing rings, which greatly achieves the sealing effect, prevents oil evaporation, and the floating roof structure is easy to assemble quickly.

[0008] Specifically, the outer edge of the assembly plate is flush with the partition ring, and the outer edges of the two sets of outer sealing rings are higher than the partition ring and the assembly plate.

[0009] Specifically, the outer sealing ring is made of silicone rubber, and a pre-drilled hole is provided in the center of the assembly plate.

[0010] Specifically, the inner barrel body has connecting screw holes at equal intervals on both sides of its outer perimeter, corresponding to the connecting bolts.

[0011] Specifically, the support plates are arranged radially along the inner barrel, and hollow collars are fitted between the support plates through mounting holes.

[0012] By adopting the above technical solution, the support plate and hollow collar effectively support the outer support ring, greatly improving the overall strength and significantly enhancing the resistance to deformation.

[0013] Specifically, a through hole is provided at the center of the inner barrel, and an outwardly protruding tube is welded to the top of the inner barrel, with a sealing cap engaged at the top of the outwardly protruding tube.

[0014] By adopting the above technical solution, the sealing cover is opened and connected to the bottom of the floating roof through the convex tube, which makes it easy to insert the oil retrieval pipe into the oil body at the lower end of the floating roof through the convex tube, thus facilitating liquid retrieval.

[0015] The beneficial effects of this utility model are:

[0016] (1) The inner floating disk sealing structure with enhanced sealing performance described in this utility model has two sets of outer sealing rings fitted on the outside of the outer support ring and the assembly plate is snapped and fixed to the inner barrel and both sides of the outer support ring by connecting bolts, which facilitates quick assembly. The assembly plates and partition rings on both sides can limit the outer sealing rings, making them less likely to shift during use. They are also stably supported by the outer support rings. When the inner floating disk floats in the oil tank, the two sets of outer sealing rings are in close contact with the inner wall of the oil tank, which greatly improves the sealing effect and prevents the oil from evaporating.

[0017] (2) The inner floating disk sealing structure with enhanced sealing performance described in this utility model utilizes the support plate and hollow collar to effectively support the outer support ring, greatly improving the overall strength and exhibiting significant anti-deformation effect. When the sealing cover is opened, it connects to the bottom of the floating disk through the outer convex tube, making it convenient to insert the oil extraction pipe from the outer convex tube into the oil body at the lower end of the floating disk for easy liquid extraction. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is an exploded view of the present invention;

[0021] Figure 3 This is a schematic diagram of the partition ring and outer sealing ring of this utility model.

[0022] In the diagram: 1. Sealing cap; 2. Outer protruding tube; 3. Assembly plate; 4. Outer sealing ring; 5. Inner barrel; 6. Through hole; 7. Connecting screw hole; 8. Reserved hole; 9. Connecting bolt; 10. Hollow collar; 11. Support plate; 12. Outer support ring; 13. Spacer ring. Detailed Implementation

[0023] 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.

[0024] To ensure a tight seal between the internal floating roof and the inner wall of the oil tank via two sets of external sealing rings 4, a strong sealing effect is achieved, preventing oil evaporation. Furthermore, this floating roof structure facilitates rapid assembly. Figure 1-3 As shown, the inner floating disk sealing structure with enhanced sealing performance of this utility model includes an inner barrel 5, an assembly plate 3, an outer support ring 12 and an outer protruding tube 2. The outer periphery of the inner barrel 5 is welded with support plates 11 at equal intervals, and the other end of the support plate 11 is welded with an outer support ring 12. The outer middle part of the outer support ring 12 is welded with a baffle ring 13.

[0025] Outer sealing rings 4 are fitted on the outer side of the outer support ring 12 and on both sides of the partition ring 13. The inner barrel 5 has assembly plates 3 fixed on both sides by connecting bolts 9.

[0026] During use, the internal floating roof sealing structure is in close contact with the inner wall of the oil tank through two sets of external sealing rings 4, which greatly improves the sealing effect and prevents the oil from evaporating. In addition, the floating roof structure is easy to assemble quickly.

[0027] For example, such as Figure 1 , 3 As shown, the present invention also includes that the outer edge of the assembly plate 3 is flush with the partition ring 13 and the outer edges of the two sets of outer sealing rings 4 are higher than the partition ring 13 and the assembly plate 3.

[0028] During use, the two sets of outer sealing rings 4 are in close contact with the inner wall of the oil tank, which greatly improves the sealing effect and prevents the oil from evaporating.

[0029] For example, such as Figure 1 , 2 As shown, the present invention also includes, in particular, the outer sealing ring 4 is made of silicone rubber material, and the assembly plate 3 has a reserved hole 8 in the center.

[0030] When in use, silicone rubber material has high elasticity, good toughness, high sealing performance, resistance to acid and alkali corrosion, weather resistance, and durability.

[0031] For example, such as Figure 1 , 2 As shown, the present invention also includes connecting screw holes 7 at equal intervals on both sides of the outer periphery of the inner barrel 5, corresponding to the connecting bolts 9.

[0032] During use, the assembly plate 3 is snapped and fixed to both sides of the inner barrel 5 and the outer support ring 12 by connecting bolts 9.

[0033] For example, such as Figure 1 , 2 As shown, the present invention also includes a support plate 11 arranged radially along the inner barrel 5, and a hollow collar 10 sleeved between the support plates 11 through mounting holes.

[0034] When in use, the support plate 11 and the hollow collar 10 effectively support the outer support ring 12, greatly improving the overall strength and significantly enhancing the resistance to deformation.

[0035] For example, such as Figure 1 , 2 As shown, the present invention also includes a through hole 6 provided at the inner axis of the inner barrel 5, and an outward protruding tube 2 welded to the top of the inner barrel 5, with a sealing cap 1 engaged at the top of the outward protruding tube 2.

[0036] When in use, the sealing cap 1 is opened and connected to the bottom of the floating roof through the protruding tube 2, which makes it easy to insert the oil retrieval tube from the protruding tube 2 into the oil body at the bottom of the floating roof for easy liquid retrieval.

[0037] In use, the two sets of outer sealing rings 4 are fitted on the outside of the outer support ring 12 and the assembly plate 3 is snapped and fixed to the inner barrel 5 and both sides of the outer support ring 12 by connecting bolts 9, which facilitates quick assembly.

[0038] The assembly plates 3 and baffle rings 13 on both sides facilitate the limiting of the outer sealing rings 4, making them less prone to displacement during use. They are also stably supported by the outer support rings 12. When the inner floating plate floats inside the oil tank, the two sets of outer sealing rings 4 are in close contact with the inner wall of the oil tank, greatly improving the sealing effect and preventing the oil from evaporating.

[0039] The support plate 11 and hollow collar 10 effectively support the outer support ring 12, greatly improving the overall strength and significantly reducing deformation. The sealing cover 1 is opened and connected to the bottom of the floating roof through the outer protruding pipe 2, making it easy to insert the oil retrieval pipe from the outer protruding pipe 2 into the oil body at the lower end of the floating roof for easy liquid retrieval.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An internal floating disk sealing structure with enhanced sealing performance, characterized in that, It includes an inner barrel (5), an assembly plate (3), an outer support ring (12) and an outer protruding tube (2). The outer periphery of the inner barrel (5) is welded with support plates (11) at equal intervals, and the other end of the support plates (11) is welded with an outer support ring (12). The outer middle part of the outer support ring (12) is welded with a partition ring (13). The outer support ring (12) is fitted with an outer sealing ring (4) on both sides of the partition ring (13), and the inner barrel (5) is fitted with an assembly plate (3) on both sides by connecting bolts (9).

2. The internal floating disk sealing structure with enhanced sealing performance according to claim 1, characterized in that, The outer edge of the assembly plate (3) is flush with the partition ring (13), and the outer edges of the two sets of outer sealing rings (4) are higher than the partition ring (13) and the assembly plate (3).

3. The internal floating disk sealing structure with enhanced sealing performance according to claim 1, characterized in that, The outer sealing ring (4) is specifically made of silicone rubber material, and a pre-drilled hole (8) is provided in the center of the assembly plate (3).

4. The internal floating disk sealing structure with enhanced sealing performance according to claim 1, characterized in that, The inner barrel (5) has connecting screw holes (7) at equal intervals on both sides of its outer perimeter, corresponding to the connecting bolts (9).

5. The internal floating disk sealing structure with enhanced sealing performance according to claim 1, characterized in that, The support plate (11) is arranged radially along the inner barrel (5), and a hollow collar (10) is sleeved between the support plates (11) through mounting holes.

6. The internal floating disk sealing structure with enhanced sealing performance according to claim 1, characterized in that, The inner barrel (5) has a through hole (6) at its inner axis, and the top of the inner barrel (5) is connected to a protruding tube (2) which is welded together and a sealing cap (1) is fitted onto the top of the protruding tube (2).