Full immersion liquid floating pan for medium-resistant atmospheric storage tank

Abstract

The utility model discloses a kind of anti-medium fluctuation atmospheric storage tank full immersion liquid floating disc, including body mechanism, buoyancy mechanism and composite sealing mechanism, the body mechanism includes tank body, floating disc is installed in the tank body, the floating disc is equipped with internal chamber;The buoyancy mechanism includes the buoyancy ring fixedly connected on the lateral wall of floating disc and the multiple pontoons of the circumferential uniformity installed in the bottom of floating disc;The composite sealing mechanism includes primary seal and secondary seal, the primary seal and secondary seal are respectively arranged on the outside of the upper and lower ends of buoyancy ring.The utility model is through integration honeycomb structure design and light weight material, significantly improve the overall rigidity and floating followability of floating disc, so that it can effectively suppress liquid level fluctuation impact, the reliability and durability of oil and gas sealing are greatly enhanced by the composite sealing structure of edge.Overcome the poor fluctuation resistance and easy leakage defects of traditional modularized floating disc, with higher operating stability, safety and environmental benefits.

Description

Technical Field

[0001] This utility model belongs to the field of fully immersed floating roof technology, specifically relating to a fully immersed floating roof for atmospheric pressure storage tanks that resists media fluctuations. Background Technology

[0002] Large atmospheric pressure vertical storage tanks are widely used in the petroleum, chemical and other fields to store various liquid raw materials and products. In order to reduce the evaporation loss of liquid in the storage tank, ensure production safety and reduce environmental pollution, a floating roof is usually installed in the storage tank to make it float on the liquid surface and isolate the gas phase space from the liquid surface.

[0003] While the currently widely used fully immersed floating roofs (such as aluminum alloy floating roofs) can effectively reduce losses, they still have the following technical drawbacks:

[0004] Poor resistance to wave action: Traditional floating roofs have a large overall weight or excessive structural rigidity. When encountering severe fluctuations in the liquid surface caused by oil receiving, oil dispensing, or external environmental factors, the floating roof responds slowly, which can easily lead to structural stress concentration, resulting in deformation of the floating roof, cracking of welds, or even sinking accidents.

[0005] Insufficient edge sealing: The seal between the edge of the floating roof and the tank wall is mostly a single-layer tongue-shaped or bladder-type seal. When the floating roof overturns or shifts horizontally with the fluctuation of the liquid surface, instantaneous gaps can easily appear between the sealing strip and the tank wall, leading to seal failure and VOC leakage.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0007] The purpose of this invention is to provide a fully submerged floating roof for atmospheric pressure storage tanks that is resistant to media fluctuations, which can solve the problems of poor anti-fluidity performance and insufficient edge sealing effect of fully submerged floating roofs.

[0008] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0009] A fully submerged floating roof for an atmospheric pressure storage tank resistant to media fluctuations includes a body structure, a buoyancy mechanism, and a composite sealing mechanism. The body structure includes a tank body, within which a floating roof is installed, and the floating roof has an internal cavity. The buoyancy mechanism includes a buoyancy ring fixedly connected to the side wall of the floating roof and multiple floats evenly installed circumferentially at the bottom of the floating roof. The composite sealing mechanism includes a primary seal and a secondary seal, which are respectively disposed on the outer sides of the upper and lower ends of the buoyancy ring, and are used to form a sealing contact with the inner side wall of the tank body.

[0010] In one or more embodiments of this utility model, a plurality of support plates are fixedly connected to the bottom groove wall of the internal chamber, and the plurality of support plates are arranged in a staggered manner to form a support grid and form a honeycomb structure in the floating plate.

[0011] In one or more embodiments of this utility model, the front and rear ends of the support plate are fixedly connected to the side groove wall of the internal cavity, and the upper end of the support plate abuts against the top groove wall of the internal cavity.

[0012] In one or more embodiments of this utility model, the float is a closed hollow cylinder, and the ratio of the diameter of the float to the diameter of the tank is 1:30 to 1:40.

[0013] In one or more embodiments of this utility model, the floating table, support plate and pontoon are all made of corrosion-resistant aluminum alloy.

[0014] In one or more embodiments of this utility model, a buoyancy cavity is provided inside the buoyancy ring, and multiple partition plates are fixedly connected in the buoyancy cavity at equal intervals, the multiple partition plates dividing the buoyancy cavity into multiple closed compartments.

[0015] In one or more embodiments of this utility model, the primary seal includes an elastic liquid-filled sealing bag and a liquid medium filled into the elastic liquid-filled sealing bag, one side wall of the elastic liquid-filled sealing bag abutting against the inner side wall of the tank, and the liquid medium is an aqueous solution of ethylene glycol.

[0016] In one or more embodiments of this utility model, an L-shaped elastic pressure plate is fixedly connected to the bottom of the buoyancy ring, and the elastic liquid-filled sealing bag is installed inside the L-shaped elastic pressure plate.

[0017] In one or more embodiments of this utility model, the secondary sealing element includes a scraper ring and an elastic sealing ring. The scraper ring is fixedly connected to the upper side wall of the buoyancy ring, and the end of the scraper ring away from the buoyancy ring abuts against the inner side wall of the tank.

[0018] In one or more embodiments of this utility model, the elastic sealing ring is installed on the upper side wall of the buoyancy ring and one side abuts against the inner side wall of the tank.

[0019] Compared with existing technologies, this invention significantly improves the overall rigidity and floating adaptability of the floating roof through an integrated honeycomb structure design and lightweight materials, enabling it to effectively suppress the impact of liquid surface fluctuations. The composite sealing structure at the edges greatly enhances the reliability and durability of the oil and gas seal. It overcomes the poor anti-wave properties and easy leakage defects of traditional modular floating roofs, and has higher operational stability, safety, and environmental benefits. Attached Figure Description

[0020] 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 recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a front view of a fully immersed floating roof for an atmospheric pressure storage tank resistant to media fluctuations, according to one embodiment of the present invention.

[0022] Figure 2 This is a cross-sectional view of a fully immersed floating roof for an atmospheric pressure storage tank resistant to media fluctuations, according to one embodiment of the present invention.

[0023] Figure 3 This is a bottom schematic diagram of the components surrounding the floating roof in this utility model;

[0024] Figure 4 This is a cross-sectional view of the floating platform in this utility model;

[0025] Figure 5 This is a cross-sectional view of the floating roof in this utility model;

[0026] Figure 6 This utility model Figure 2 A schematic diagram of point A in the middle.

[0027] Explanation of key figure labels:

[0028] 1-Main body structure, 11-Tank body, 12-Floating plate, 13-Internal chamber, 14-Support plate, 2-Buoyancy mechanism, 21-Buoyancy ring, 22-Buoyancy cavity, 23-Divider plate, 24-Float, 3-Composite sealing mechanism, 31-Elastic liquid-filled sealing bag, 32-Liquid medium, 33-L-type elastic pressure plate, 34-Scraper ring, 35-Elastic sealing ring. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solutions of this utility model, 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 embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0030] like Figures 1-4As shown in the figure, a fully immersed floating roof for an atmospheric pressure storage tank with resistance to media fluctuations according to one embodiment of the present invention includes a main body mechanism 1, a buoyancy mechanism 2, and a composite sealing mechanism 3. The main body mechanism 1 includes a tank body 11, and a floating roof 12 is installed inside the tank body 11. The floating roof 12 has an internal cavity 13. The buoyancy mechanism 2 includes a buoyancy ring 21 fixedly connected to the side wall of the floating roof 12 and a plurality of floats 24 evenly installed circumferentially at the bottom of the floating roof 12. The composite sealing mechanism 3 includes a primary seal and a secondary seal. The primary seal and the secondary seal are respectively disposed on the outer side of the upper and lower ends of the buoyancy ring 21. The primary seal and the secondary seal are used to form a sealing contact with the inner side wall of the tank body 11.

[0031] When this fully submerged floating roof for atmospheric pressure storage tanks is in use, the floating roof 12 floats entirely on the liquid surface when liquid is injected into the tank body 11, ensuring complete immersion. When the liquid surface fluctuates, the overall structure of the tank body 11 and the multiple dispersed floats 24 work together to stabilize the surface. The primary and secondary seals at the edges maintain close contact with the inner wall of the tank body 11, effectively sealing off oil and gas. This integral fully submerged floating roof 12 significantly reduces overall weight and inertia through its lightweight hollow main plate and evenly distributed small-diameter floats 24, allowing it to sensitively and smoothly follow liquid surface fluctuations, much like a floating raft, thus greatly improving its resistance to fluctuations and stability. Simultaneously, the composite sealing mechanism 3, composed of primary and secondary seals around the edges, fits tightly against the tank wall, adaptively compensating for deformation and effectively sealing off oil and gas, thereby achieving the core objectives of reducing evaporation loss and enhancing safety and environmental performance.

[0032] like Figure 5 As shown, multiple support plates 14 are fixedly connected to the bottom wall of the internal chamber 13. The multiple support plates 14 are arranged in a crisscross pattern to form a support grid and create a honeycomb structure within the floating roof 12. In order to ensure that the floating roof 12 meets the structural strength requirements while satisfying the lightweight design after the internal chamber 13 is opened inside, the internal structure of the floating roof 12 is supported by a crisscross support grid within the internal chamber 13, thereby improving the strength of the floating roof 12.

[0033] like Figure 5 As shown, the front and rear ends of the support plate 14 are fixedly connected to the side groove wall of the inner cavity 13, and the upper end of the support plate 14 abuts against the top groove wall of the inner cavity 13, ensuring that the support grid is fixedly installed in the inner cavity 13 so as to ensure the stability of the structure after installation.

[0034] In one or more embodiments of this utility model, the float 24 is a closed hollow cylinder, and the ratio of the diameter of the float 24 to the diameter of the tank 11 is 1:30 to 1:40. The arrangement of smaller diameter and more numerous floats 24 disperses the buoyancy, making the buoyancy change more smoothly when the floating plate 12 encounters local liquid surface fluctuations, significantly enhancing its ability to resist tilting and bending moments, and greatly improving the overall floating stability.

[0035] Preferably, the floating roof 12, the support plate 14, and the pontoon 24 are all made of corrosion-resistant aluminum alloy, which enables the floating roof to meet the strength requirements while achieving lightweight design and meeting the requirements for use in oil corrosive environments.

[0036] like Figures 4-6 As shown, a buoyancy chamber 22 is formed within the buoyancy ring 21. Multiple partition plates 23 are fixedly connected within the buoyancy chamber 22 at equal intervals, dividing the buoyancy chamber 22 into multiple enclosed compartments. This design allows the buoyancy ring 21 to provide primary edge buoyancy and also serve as a base for installing sealing devices. Even if a single compartment is accidentally damaged, the remaining compartments can still provide sufficient buoyancy, ensuring the floating roof's resistance to sinking.

[0037] like Figure 2 and Figure 6 As shown, the primary sealing element includes an elastic liquid-filled sealing bag 31 and a liquid medium 32 filled into the elastic liquid-filled sealing bag 31. One side wall of the elastic liquid-filled sealing bag 31 abuts against the inner side wall of the tank body 11. The liquid medium 32 is an aqueous solution of ethylene glycol, so that the elastic liquid-filled sealing bag 31 is filled with a liquid that is not easy to freeze and has good stability.

[0038] like Figure 2 and Figure 6 As shown, an L-shaped elastic pressure plate 33 is fixedly connected to the bottom of the buoyancy ring 21, and an elastic liquid-filled sealing bag 31 is installed inside the L-shaped elastic pressure plate 33. The buoyancy ring 21 is fixed to the outer wall of the buoyancy ring 21 by the L-shaped elastic pressure plate 33. A special liquid buoyancy cavity 22 is filled inside the buoyancy ring 21, which can adapt to the unevenness of the tank wall and always maintain a tight fit with the tank wall, forming the first efficient sealing barrier. At the same time, the L-shaped elastic pressure plate 33 presses and limits the elastic liquid-filled sealing bag 31 on the side wall away from the tank wall and the bottom side wall, so that the elastic liquid-filled sealing bag 31 fits more tightly on the tank wall, improving the sealing performance of the tank wall.

[0039] like Figure 2 and Figure 6As shown, the secondary sealing component includes a scraper ring 34 and an elastic sealing ring 35. The scraper ring 34 is fixedly connected to the upper side wall of the buoyancy ring 21. The end of the scraper ring 34 away from the buoyancy ring 21 abuts against the inner side wall of the tank body 11. When the float 12 floats along with the tank body 11, the scraper ring 34 can be moved by the buoyancy ring 21, and the liquid film on the tank wall can be scraped off by the scraper ring 34.

[0040] like Figure 2 and Figure 6 As shown, the elastic sealing ring 35 is installed on the upper side wall of the buoyancy ring 21 and one side abuts against the inner side wall of the tank body 11. The elastic sealing ring 35 serves as a secondary sealing guarantee after the elastic liquid-filled sealing bag 31 fails.

[0041] In use, when liquid is injected into the tank 11, the float 12 floats entirely on the liquid surface, fully submerged. When the liquid surface fluctuates, the overall structure of the tank 11 and the multiple dispersed floats 24 work together to smoothly navigate the fluctuations. The elastic liquid-filled sealing bags 31 and elastic sealing rings 35 at the edges always maintain close contact with the inner wall of the tank 11, effectively sealing oil and gas. This integral, fully submerged float 12, through its lightweight honeycomb structure main board and evenly distributed small-diameter floats 24, significantly reduces the overall weight and inertia, allowing it to sensitively and smoothly follow the fluctuations of the liquid surface, much like a floating raft, thus greatly improving its resistance to fluctuations and stability. At the same time, the composite sealing mechanism 3, composed of the elastic liquid-filled sealing bags 31 and elastic sealing rings 35 surrounding the edges, can closely fit the tank wall, adaptively compensate for deformation, and effectively seal off oil and gas, thereby achieving the core objectives of reducing evaporation loss and enhancing safety and environmental performance.

[0042] This integrated fully submerged floating roof significantly reduces overall weight and inertia through its lightweight honeycomb sandwich main board and evenly distributed small-diameter floats, enabling it to sensitively and smoothly follow liquid surface fluctuations, much like a raft floating as a whole, thus greatly improving its resistance to fluctuations and stability. At the same time, its composite sealing system, consisting of a filling pipe sealing bag around the edge and a scraper, can closely fit the tank wall, adaptively compensate for deformation, and effectively seal off oil and gas, thereby achieving the core objectives of reducing evaporation loss and enhancing safety and environmental performance.

[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0044] 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 fully submerged floating roof for an atmospheric pressure storage tank resistant to media fluctuations, characterized in that, include: The main body includes a tank, a floating roof is installed inside the tank, and an internal cavity is formed inside the floating roof; The buoyancy mechanism includes a buoyancy ring fixedly connected to the side wall of the floating table and multiple buoys evenly installed circumferentially at the bottom of the floating table; The composite sealing mechanism includes a primary seal and a secondary seal, which are respectively disposed on the outer sides of the upper and lower ends of the buoyancy ring, and are used to form a sealing contact with the inner wall of the tank.

2. The fully submerged floating roof for an atmospheric pressure storage tank resistant to medium fluctuations according to claim 1, characterized in that, Multiple support plates are fixedly connected to the bottom wall of the internal chamber. The multiple support plates are arranged in a staggered manner to form a support grid and form a honeycomb structure inside the floating plate.

3. The fully immersed floating roof for an atmospheric pressure storage tank resistant to medium fluctuations according to claim 2, characterized in that, The front and rear ends of the support plate are fixedly connected to the side groove wall of the internal cavity, and the upper end of the support plate abuts against the top groove wall of the internal cavity.

4. The fully submerged floating roof for an atmospheric pressure storage tank resistant to medium fluctuations according to claim 3, characterized in that, The pontoon is a sealed hollow cylinder, and the ratio of the diameter of the pontoon to the diameter of the tank is 1:30 to 1:

40.

5. The fully submerged floating roof for an atmospheric pressure storage tank resistant to medium fluctuations according to claim 4, characterized in that, The floating platform, support plate, and pontoon are all made of corrosion-resistant aluminum alloy.

6. The fully submerged floating roof for an atmospheric pressure storage tank resistant to medium fluctuations according to claim 1, characterized in that, The buoyancy ring has a buoyancy cavity, and multiple partition plates are fixedly connected in the buoyancy cavity at equal intervals, dividing the buoyancy cavity into multiple closed compartments.

7. The fully submerged floating roof for an atmospheric pressure storage tank resistant to medium fluctuations according to claim 1, characterized in that, The primary seal includes an elastic liquid-filled sealing bag and a liquid medium filled into the elastic liquid-filled sealing bag. One side wall of the elastic liquid-filled sealing bag abuts against the inner side wall of the tank. The liquid medium is an aqueous solution of ethylene glycol.

8. A fully submerged floating roof for an atmospheric pressure storage tank resistant to medium fluctuations according to claim 7, characterized in that, The bottom of the buoyancy ring is fixedly connected to an L-shaped elastic pressure plate, and the elastic liquid-filled sealing bag is installed inside the L-shaped elastic pressure plate.

9. A fully submerged floating roof for an atmospheric pressure storage tank resistant to medium fluctuations according to claim 8, characterized in that, The secondary sealing element includes a scraper ring and an elastic sealing ring. The scraper ring is fixedly connected to the upper side wall of the buoyancy ring, and the end of the scraper ring away from the buoyancy ring abuts against the inner side wall of the tank.

10. A fully submerged floating roof for an atmospheric pressure storage tank resistant to medium fluctuations according to claim 9, characterized in that, The elastic sealing ring is installed on the upper side wall of the buoyancy ring and one side abuts against the inner side wall of the tank.

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