Leak-proof floating roof for oil storage tanks

Abstract

This utility model discloses a leak-proof floating roof for an oil storage tank, comprising: a tank body, a water-absorbing expansion strip slidably connected to the inner wall of the tank body, two bottom plates fixedly connected to the outer surface of the water-absorbing expansion strip, a support rod fixedly connected to the lower surface of the two bottom plates, a guide plate fixedly connected to the lower end of the support rod, an airbag fixedly connected to the lower surface of the guide plate, a sealing ring fixedly connected to the outer surface of the airbag, a bottom plate fixedly connected to the lower surface of the sealing ring, a leakage port provided on the outer surface of the bottom plate, and a sealing valve threadedly connected to the outer surface of the leakage port. Through the above device, a double-layer sealing condition is achieved, and a liquid diversion channel is designed so that even in the event of a small leak, the liquid can be diverted in a directional manner, preventing liquid accumulation on the surface of the floating roof and thus avoiding danger. Furthermore, the water-absorbing expansion strip prevents the sealing strip from failing to quickly seal after a large amount of liquid leaks due to aging or other issues.

Description

Technical Field

[0001] This utility model relates to the field of floating roof technology for oil storage tanks, and in particular to a leak-proof floating roof for oil storage tanks. Background Technology

[0002] In industries such as petrochemicals, oil storage tanks are crucial equipment for storing liquid media such as oil. The internal floating roof, a key component within the tank, floats on the oil surface and rises and falls with the oil, effectively reducing oil evaporation losses. However, existing internal floating roofs often have gaps at their connection to the tank's inner wall, causing oil to leak out. This not only wastes oil but may also pose safety hazards and environmental pollution. China has disclosed an oil storage tank with an internal floating roof (application number: 201720670080.0), which maintains a continuous seal when the rubber layer is ineffective due to air bladder inflation, but it cannot recover leaked liquid. Utility Model Content

[0003] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a leak-proof floating roof for oil storage tanks, which achieves double-layer sealing conditions and is designed with liquid diversion channels. Even if a small amount of leakage occurs, it can guide the flow in a directional manner, avoiding the accumulation of liquid on the surface of the floating roof and the occurrence of danger. Furthermore, the water-absorbing expansion strip prevents problems such as aging of the sealing strip and the inability to quickly seal after a large amount of liquid leakage.

[0004] This utility model also provides an internal floating roof for an oil storage tank with the aforementioned anti-leakage feature, comprising: a tank body, a water-absorbing expansion strip slidably connected to the inner wall of the tank body, two bottom plates fixedly connected to the outer surface of the water-absorbing expansion strip, a support rod fixedly connected to the lower surface of the two bottom plates, a guide plate fixedly connected to the lower end of the support rod, an airbag fixedly connected to the lower surface of the guide plate, a sealing ring fixedly connected to the outer surface of the airbag, a bottom plate fixedly connected to the lower surface of the sealing ring, a leakage port provided on the outer surface of the bottom plate, and a sealing valve threadedly connected to the outer surface of the leakage port. Through the above device, a double-layer sealing condition is achieved, and a liquid diversion channel is designed so that even in the event of a small leak, the liquid can be diverted in a directional manner, preventing liquid accumulation on the surface of the floating roof and thus avoiding potential dangers. Furthermore, the water-absorbing expansion strip prevents problems such as aging of the sealing strip from hindering rapid sealing after a large amount of liquid leakage.

[0005] According to the present invention, a leak-proof floating roof for an oil storage tank includes a stabilizing rod fixedly connected to the outer surface of the second-layer bottom plate, and a top plate fixedly connected to the upper end of the stabilizing rod. This device prevents the floating roof from rotating during liquid addition and extraction.

[0006] According to this utility model, a leak-proof floating roof for an oil storage tank includes a shock-absorbing device fixedly connected to the lower surface of the base plate, and a base fixedly connected to the lower surface of the shock-absorbing device. This device prevents the floating roof from rapidly falling and causing damage during oil pumping.

[0007] According to the present invention, a leak-proof floating roof for an oil storage tank includes a shock-absorbing device comprising a sealing sleeve, a spring, and a support leg. The support leg is slidably connected to the sealing sleeve, and a spring is installed inside the sealing sleeve. The end of the spring is fixedly connected to the support leg. Through this device, the spring relieves stress, ensuring the stability of the device.

[0008] According to this utility model, a leak-proof floating roof for an oil storage tank has a hexagonal honeycomb structure design inside the bottom plate. These components significantly reduce weight compared to solid sheet metal, making the floating roof lighter and ensuring buoyancy.

[0009] According to this utility model, an internal floating roof for an oil storage tank that prevents leakage is provided. The sealing ring is made of elastic sealing material, and the sealing ring and the tank body form an elastic seal. Through these components, it is possible to adapt to tank wall deformation, continuously block the escape path of oil and gas, and reduce the evaporation loss rate.

[0010] According to the present invention, a leak-proof floating roof for an oil storage tank includes a liquid suction port on the outer surface of the second-layer bottom plate, and a cover plate threaded onto the outer surface of the liquid suction port. After a large amount of liquid has leaked out, the cover plate can be opened to suction out the excess liquid through the liquid suction port.

[0011] According to the present invention, a leak-proof floating roof for an oil storage tank includes a stabilizer bar with a multi-telescopic structure. This structure enables the stabilizer bar to move up and down together with the floating roof.

[0012] Compared with existing technologies, this leak-proof floating roof of the oil storage tank achieves double-layer sealing conditions and is designed with liquid diversion channels. Even if a small amount of leakage occurs, it can guide the flow in a directional manner, avoiding the accumulation of liquid on the surface of the floating roof and the occurrence of danger. In addition, the water-absorbing expansion strip prevents the inability to quickly seal after a large amount of liquid leakage due to problems such as aging of the sealing strip. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0014] Figure 1 This is a front sectional view of the leak-proof floating roof inside the oil storage tank of this utility model;

[0015] Figure 2 This is a cross-sectional view of the internal floating roof of the leak-proof oil storage tank of this utility model.

[0016] Figure 3 This is a top view of the internal floating roof of the leak-proof oil storage tank of this utility model;

[0017] Figure 4 This is a bottom view of the internal floating roof of the leak-proof oil storage tank of this utility model.

[0018] Figure 5 This is a structural diagram of the bottom plate of the internal floating roof of the oil storage tank for leak prevention according to this utility model.

[0019] Legend:

[0020] 1. Tank body; 2. Cover plate; 3. Suction port; 4. Support rod; 5. Airbag; 6. Spring; 7. Shock absorber; 8. Support leg; 9. Top plate; 10. Stabilizer bar; 11. Secondary bottom plate; 12. Water absorption expansion strip; 13. Sealing ring; 14. First-layer bottom plate; 15. Leakage port; 16. Base; 17. Sealing sleeve; 18. Sealing valve; 19. Guide plate. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Reference Figure 1-4 This utility model discloses a leak-proof floating roof for an oil storage tank, comprising a tank body 1. A water-absorbing expansion strip 12 is slidably connected to the inner wall of the tank body 1. A second-layer base plate 11 is fixedly connected to the outer surface of the water-absorbing expansion strip 12. A support rod 4 is fixedly connected to the lower surface of the second-layer base plate 11. A guide plate 19 is fixedly connected to the lower end of the support rod 4. An airbag 5 is fixedly connected to the lower surface of the guide plate 19. A sealing ring 13 is fixedly connected to the outer surface of the airbag 5. A first-layer base plate 14 is fixedly connected to the lower surface of the sealing ring 13. A leakage port 15 is provided on the outer surface of the first-layer base plate 14, and a sealing valve 18 is threadedly connected to the outer surface of the leakage port 15. A suction port 3 is provided on the outer surface of the second-layer base plate 11, and a cover plate is threadedly connected to the outer surface of the suction port 3.

[0023] The sealing ring 13 is made of elastic sealing material, and the sealing ring 13 and the tank body 1 form an elastic seal.

[0024] A stabilizing rod 10 is fixedly connected to the outer surface of the second-layer base plate 11, and a top plate 9 is fixedly connected to the upper end of the stabilizing rod 10. The stabilizing rod 10 has a multi-telescopic structure.

[0025] A shock-absorbing device 7 is fixedly connected to the lower surface of a base plate 14, and a base 16 is fixedly connected to the lower surface of the shock-absorbing device 7. The shock-absorbing device 7 includes a sealing sleeve 17, a spring 6, and a support leg 8. The support leg 8 is slidably connected to the sealing sleeve 17. The spring 6 is installed inside the sealing sleeve 17, and the support leg 8 is fixedly connected to the end of the spring 6.

[0026] The interior of the first-layer base plate 14 features a hexagonal honeycomb structure design.

[0027] Working principle: Oil is injected into the tank 1. The stabilizing rod 10 ensures that the inner floating plate moves along the tank 1. When the inner floating plate is in use, the oil is sealed by the sealing ring 13. The hexagonal honeycomb structure of the bottom plate 14 and the airbag 5 maintain the buoyancy of the inner floating plate. Liquid that seeps out through the sealing ring 13 will flow to the drain port 15 along the guide plate 19 by gravity. The oil can be allowed to flow back into the tank 1 by manually opening the sealing valve. When the sealing ring 15 fails, the oil that flows rapidly into the drain port 19 will accumulate until it touches the water absorption expansion strip 12, causing the water absorption expansion strip 12 to expand and maintain the seal, effectively preventing further oil seepage and evaporation. When pumping oil, when the inner floating plate falls to the bottom of the tank 1, it will be relieved by the shock absorption device 7, ensuring the stability of the device.

[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A leak-proof floating roof for an oil storage tank, characterized in that, include: The tank (1) has a water-absorbing expansion strip (12) slidably connected to the inner wall of the tank (1). The outer surface of the water-absorbing expansion strip (12) is fixedly connected to a two-layer bottom plate (11). The lower surface of the two-layer bottom plate (11) is fixedly connected to a support rod (4). The lower end of the support rod (4) is fixedly connected to a guide plate (19). The lower surface of the guide plate (19) is fixedly connected to an airbag (5). The outer surface of the airbag (5) is fixedly connected to a sealing ring (13). The lower surface of the sealing ring (13) is fixedly connected to a bottom plate (14). The outer surface of the bottom plate (14) is provided with a leak port (15). The outer surface of the leak port (15) is threadedly connected to a sealing valve (18).

2. The leak-proof floating roof for an oil storage tank according to claim 1, characterized in that... It lies in, A stabilizing rod (10) is fixedly connected to the outer surface of the second-layer base plate (11), and a top plate (9) is fixedly connected to the upper end of the stabilizing rod (10).

3. The leak-proof floating roof for an oil storage tank according to claim 1, characterized in that, A shock-absorbing device (7) is fixedly connected to the lower surface of the first-layer base plate (14), and a base (16) is fixedly connected to the lower surface of the shock-absorbing device (7).

4. The leak-proof floating roof for an oil storage tank according to claim 3, characterized in that, The shock absorption device (7) includes a sealing sleeve (17), a spring (6), and a support leg (8). The support leg (8) is slidably connected to the sealing sleeve (17). The sealing sleeve (17) is provided with a spring (6), and the end of the spring (6) is fixedly connected to the support leg (8).

5. The leak-proof floating roof for an oil storage tank according to claim 1, characterized in that, The bottom plate (14) has a hexagonal honeycomb structure inside.

6. The leak-proof floating roof for an oil storage tank according to claim 1, characterized in that, The sealing ring (13) is an elastic sealing material, and the sealing ring (13) and the tank body (1) are elastically sealed.

7. The leak-proof floating roof for an oil storage tank according to claim 1, characterized in that, The outer surface of the second-layer bottom plate (11) is provided with a liquid suction port (3), and a cover plate (2) is threadedly connected to the outer surface of the liquid suction port (3).

8. A leak-proof floating roof for an oil storage tank according to claim 2, characterized in that, The stabilizer bar (10) is a multi-telescopic structure.

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