A high-strength outrigger fully liquid-contact internal floating plate

Abstract

This utility model relates to the field of internal floating roof technology, and more particularly to a high-strength internal floating roof with fully liquid-contact outriggers. It includes an internal floating roof body, a support plate installed on the outer periphery of the internal floating roof body, and a sealing structure that connects to the support plate and mates with the inner wall of the storage tank. A horizontal float plate is vertically slidably mounted on the bottom of the internal floating roof body via a guide rod. Multiple outriggers that mate with the bottom of the storage tank are installed on the bottom of the float plate. A deformable elastic deceleration plate is provided between the float plate and the support plate, with an opening on the elastic deceleration plate that mates with the guide rod. By incorporating the floating roof, elastic deceleration plate, and buffer spring, the deformation and friction of the elastic deceleration plate, along with the compression of the buffer spring, effectively dissipates the descent kinetic energy when the outriggers contact the tank bottom, thus achieving buffer protection for the floating roof. The outriggers are designed as a single unit, eliminating the defects of loose connections in split outrigger designs, effectively improving structural strength, and reducing costs associated with complex structures and frequent maintenance.

Description

Technical Field

[0001] This utility model relates to the field of internal floating disc technology, and in particular to a high-strength internal floating disc with legs fully in contact with liquid. Background Technology

[0002] To reduce the evaporation of media within storage tanks, minimize losses, conserve energy, and protect the environment, internal floating roofs are installed inside the tanks. The storage tanks use these floating roofs to seal the stored media, thus achieving energy conservation and environmental protection. This equipment is widely used in petrochemical plants throughout China.

[0003] In practical use, existing floating roofs typically have multiple outriggers at their bottom to provide support during descent. To prevent the outriggers from making hard contact with the tank body when the floating roof descends to the bottom, the common practice is to use outriggers with a split structure and install buffer springs inside to reduce impact.

[0004] These types of split-type outriggers generally suffer from problems such as complex structure, high manufacturing cost, and insufficient overall strength. Under long-term impact loads, their connection points are prone to loosening, leading to a decrease in cushioning performance, frequent maintenance, and increased costs. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a high-strength, fully liquid-contact internal floating disc with simple structure, high strength and reliable buffering performance, which addresses the shortcomings of the existing technology.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A high-strength, fully liquid-contact internal floating roof with outriggers is characterized by: an internal floating roof body, a support plate installed on the outer periphery of the internal floating roof body, and a sealing structure that connects to the support plate and mates with the inner wall of the storage tank; a horizontal float plate is vertically slidably mounted on the bottom of the internal floating roof body via a guide rod, and multiple outriggers that mate with the bottom of the storage tank are installed on the bottom of the float plate; a deformable elastic retarder plate is provided between the float plate and the support plate, and the elastic retarder plate has an opening that mates with the guide rod; the lower surface of the elastic retarder plate abuts against the float plate via a buffer spring sleeved on the outside of the guide rod; the edge of the elastic retarder plate is bent inward and fixedly connected to the support plate; and a wear-resistant coating that mates with the inner wall of the storage tank is provided on the elastic retarder plate.

[0007] The technical problem to be solved by this utility model can be further achieved through the following steps: an elastic pad is coaxially installed at the bottom of the support leg, and a support foot for distributing load is coaxially installed at the bottom of the elastic pad, the outer diameter of the support foot being larger than the outer diameter of the support leg.

[0008] The technical problem to be solved by this utility model can be further achieved through the following steps: at least three guide rods are provided vertically and are evenly distributed along the circumference of the inner floating plate body. The top of each guide rod is fixedly connected to the inner floating plate body, and the bottom of each guide rod is connected by a limiting block to prevent the floating plate from falling out through a thread.

[0009] The technical problem to be solved by this utility model can be further achieved through the following steps: the sealing structure includes a pressure plate installed on the top of the inner floating plate body by adjusting bolts, an elastic sealing plate that can deform is provided between the pressure plate and the support plate, the elastic sealing plate is provided with an opening that cooperates with the adjusting bolts, the upper surface of the elastic sealing plate abuts against the pressure plate by a support spring, the edge of the elastic sealing plate is bent inward and fixedly connected to the support plate, and a sealing layer that cooperates with the inner wall of the storage tank is provided on the elastic sealing plate.

[0010] The technical problem to be solved by this utility model can be further achieved through the following steps: at least three adjusting bolts are provided vertically and are evenly distributed along the circumference of the inner floating plate body. The bottom of each adjusting bolt is threadedly connected to the inner floating plate body, and the top of each adjusting bolt is threadedly connected to an adjusting nut. A sealing gasket is installed between each adjusting nut and the pressure plate.

[0011] The technical problem to be solved by this utility model can be further achieved through the following steps, wherein the sealing layer is composed of several layers of sealing film fitted on the elastic sealing plate.

[0012] The technical problem to be solved by this utility model can be further achieved through the following steps: the outer periphery of the pressure plate and the float plate are provided with sealing rings that cooperate with the inner wall of the storage tank.

[0013] The technical problem to be solved by this utility model can be further achieved through the following steps: the support plate is fixedly sleeved in the middle of the inner floating disk body; the inner floating disk body adopts a honeycomb structure welded from several support frames.

[0014] Compared with the prior art, the beneficial effects of this utility model are: by setting up a floating roof, an elastic deceleration plate and a buffer spring, when the outriggers contact the bottom of the tank, the deformation and friction of the elastic deceleration plate and the compression of the buffer spring effectively consume the kinetic energy of the fall, thereby achieving buffer protection for the floating roof; the outriggers adopt an integrated design, eliminating the defect of easy loosening at the connection parts of the split outriggers, effectively improving the structural strength and reducing the cost caused by complex structure and frequent maintenance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a top view of the internal floating roof; In the diagram: 1. Tank; 2. Inner floating roof body; 3. Support plate; 4. Guide rod; 5. Float; 6. Support leg; 7. Elastic retardant plate; 8. Buffer spring; 9. Wear-resistant coating; 10. Elastic pad; 11. Support foot; 12. Limiting block; 13. Adjusting bolt; 14. Pressure plate; 15. Elastic sealing plate; 16. Support spring; 17. Sealing layer; 18. Adjusting nut; 19. Sealing gasket; 20. Sealing ring. Detailed Implementation

[0016] The specific technical solutions of this utility model are further described below to enable those skilled in the art to further understand this utility model, without constituting a limitation on its rights.

[0017] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0018] Please refer to Figure 1-2 A high-strength, fully liquid-contact internal floating roof with outriggers 6 is used for internal sealing of a storage tank 1. It includes an internal floating roof body 2, a support plate 3 fixedly installed on the outer periphery of the internal floating roof body 2, and a sealing structure that connects to the support plate 3 and mates with the inner wall of the storage tank 1. A horizontal floating plate 5 is vertically slidably mounted on the bottom of the internal floating roof body 2 via a guide rod 4. Multiple outriggers 6 that mate with the bottom of the storage tank 1 are mounted on the bottom of the floating plate 5. A deformable elastic retardant plate 7 is provided between the floating plate 5 and the support plate 3. The elastic retardant plate 7 has an opening that mates with the guide rod 4. The lower surface of the elastic retardant plate 7 abuts against the floating plate 5 via a buffer spring 8 sleeved on the outside of the guide rod 4. The edge of the elastic retardant plate 7 is bent inward and fixedly connected to the support plate 3. A wear-resistant coating 9 that mates with the inner wall of the storage tank 1 is provided on the elastic retardant plate 7. Both the elastic retarder 7 and the elastic sealing plate 15 mentioned later are made of fluororubber or silicone rubber. These two materials have excellent elasticity, oil resistance and anti-aging properties, which can ensure that they maintain their performance in the environment of the storage tank 1 for a long time; the wear-resistant coating 9 is preferably a sprayed polyurethane layer.

[0019] An elastic pad 10 is coaxially mounted on the bottom of the support leg 6, and a support foot 11 for distributing load is coaxially mounted on the bottom of the elastic pad 10. The outer diameter of the support foot 11 is larger than the outer diameter of the support leg 6. The elastic pad 10 is made of polyurethane and can provide cushioning at the moment the support foot 11 contacts the bottom of the tank, avoiding stress concentration at point contact and protecting the anti-corrosion layer of the tank bottom.

[0020] At least three guide rods 4 are provided vertically and are evenly distributed along the circumference of the inner floating plate body 2. The top of each guide rod 4 is fixedly connected to the inner floating plate body 2, and the bottom of each guide rod 4 is connected by a limiting block 12 to prevent the floating plate 5 from falling out.

[0021] The sealing structure includes a pressure plate 14 installed on the top of the inner floating roof body 2 by adjusting bolts 13. A deformable elastic sealing plate 15 is provided between the pressure plate 14 and the support plate 3. The elastic sealing plate 15 has an opening that cooperates with the adjusting bolts 13. The upper surface of the elastic sealing plate 15 abuts against the pressure plate 14 by a support spring 16. The edge of the elastic sealing plate 15 is bent inward and fixedly connected to the support plate 3. A sealing layer 17 that cooperates with the inner wall of the storage tank 1 is provided on the elastic sealing plate 15.

[0022] At least three adjusting bolts 13 are provided vertically and are evenly distributed along the circumference of the inner floating disk body 2. The bottom of each adjusting bolt 13 is threadedly connected to the inner floating disk body 2, and the top of each adjusting bolt 13 is threadedly connected to an adjusting nut 18. A sealing gasket 19 is installed between each adjusting nut 18 and the pressure plate 14.

[0023] During use, the elastic sealing plate 15, supported by the support spring 16, always maintains close contact with the inner wall of the storage tank 1 to achieve a seal. If leakage is found after long-term use, the gap between the elastic sealing plate 15 and the inner wall of the storage tank 1 can be finely adjusted by rotating the adjusting nut 18 to ensure that the sealing effect reaches the best state.

[0024] The sealing layer 17 consists of several layers of sealing film fitted onto the elastic sealing plate 15. The sealing layer 17, composed of multiple layers of sealing film, further improves the sealing effect, and even if one layer of sealing film is damaged, the other layers can continue to provide effective sealing protection.

[0025] Both the pressure plate 14 and the float plate 5 are provided with sealing rings 20 that mate with the inner wall of the storage tank 1 on their outer periphery.

[0026] The support plate 3 is fixedly sleeved in the middle of the inner floating disk body 2; the inner floating disk body 2 adopts a honeycomb structure welded from several support frames. This structure is welded from aluminum alloy or stainless steel profiles, and its purpose is to ensure that the overall structure has extremely high strength while achieving the maximum buoyancy to self-weight ratio, ensuring that the floating disk floats stably on the liquid surface.

[0027] Working principle: When the liquid level in tank 1 drops, the entire floating roof descends accordingly. Upon landing, the outriggers 11 are supported by the reaction force from the tank bottom, thus keeping the float plate 5 stationary; the inner floating roof body 2 continues to move downward under gravity, compressing the buffer spring 8 and pushing the float plate 5 upward along the guide rod 4, compressing the elastic deceleration plate 7. The elastic deceleration plate 7 then undergoes radial expansion, causing its outer wear-resistant coating 9 to press tightly against the inner wall of tank 1, dissipating the downward kinetic energy of the floating roof through friction until the floating roof comes to a stop, achieving smooth buffering and deceleration. During this process, the elastic pads 10 at the bottom of the outriggers 6 are simultaneously compressed and deformed, providing effective end-of-line auxiliary buffering.

[0028] 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 inventive effort are within the scope of protection of this utility model.

Claims

1. A high strength legged full fluid filled pontoon characterized by: The system includes an inner floating roof body, a support plate installed on the outer periphery of the inner floating roof body, and a sealing structure that connects to the support plate and mates with the inner wall of the storage tank. A horizontal floating plate is vertically slidably installed at the bottom of the inner floating roof body via a guide rod. Multiple support legs that mate with the bottom of the storage tank are installed at the bottom of the floating plate. A deformable elastic retarder plate is provided between the floating plate and the support plate. The elastic retarder plate has an opening that mates with the guide rod. The lower surface of the elastic retarder plate abuts against the floating plate via a buffer spring sleeved on the outside of the guide rod. The edge of the elastic retarder plate is bent inward and fixedly connected to the support plate. A wear-resistant coating that mates with the inner wall of the storage tank is provided on the elastic retarder plate.

2. The high-strength legged full-liquid-in inner floating pontoon according to claim 1, characterized in that: An elastic pad is coaxially mounted on the bottom of the outrigger, and a foot for distributing load is coaxially mounted on the bottom of the elastic pad. The outer diameter of the foot is larger than the outer diameter of the outrigger.

3. The high-strength legged full-knockout internal floating platform of claim 1, wherein: The guide rods are vertically arranged in at least three and evenly distributed along the circumference of the inner floating plate body. The top of each guide rod is fixedly connected to the inner floating plate body, and the bottom of each guide rod is threadedly connected to a limiting block to prevent the floating plate from falling out.

4. The high-strength legged full-knockdown floating disc according to claim 1, wherein: The sealing structure includes a pressure plate installed on the top of the inner floating roof body by adjusting bolts, an elastic sealing plate that can deform between the pressure plate and the support plate, an opening on the elastic sealing plate that mates with the adjusting bolts, the upper surface of the elastic sealing plate abutting against the pressure plate by a support spring, the edge of the elastic sealing plate bending inward and fixedly connected to the support plate, and a sealing layer that mates with the inner wall of the storage tank on the elastic sealing plate.

5. The high-strength legged full-knockout internal floating platform of claim 4, wherein: At least three adjusting bolts are provided vertically and are evenly distributed along the circumference of the inner floating plate body. The bottom of each adjusting bolt is threaded to the inner floating plate body, and the top of each adjusting bolt is threaded to an adjusting nut. A sealing gasket is installed between each adjusting nut and the pressure plate.

6. The high-strength leg full-knockout internal floating platform of claim 4, wherein: The sealing layer consists of several layers of sealing film fitted onto the elastic sealing plate.

7. The high-strength leg full-knockout inner floating disc according to claim 4, characterized in that: Both the pressure plate and the float plate are provided with sealing rings on their outer periphery that fit with the inner wall of the storage tank.

8. The high-strength outrigger fully liquid-contact internal floating plate according to claim 1, characterized in that: The support plate is fixedly sleeved in the middle of the inner floating disk body; the inner floating disk body adopts a honeycomb structure welded together from several support frames.

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