Large-compensation sealing device for inner floating roof

Abstract

The utility model discloses a large compensation sealing device for an inner floating roof, which relates to the technical field of inner floating roofs, and comprises an inner floating roof shell, and one side of the inner floating roof shell is fixedly connected with a fixing plate. In the large compensation sealing device, the outer surface of a sealing ring is tightly attached to the inner wall of an oil tank, so that the interior of the oil tank can be primarily sealed; by arranging the first sealing scraper and the second sealing scraper, the inner floating roof shell and the inner wall of the oil tank are completely sealed, meanwhile, oil gas possibly existing on the inner wall of the oil tank is scraped and prevented from making contact with outside air, and the sealing performance is improved; the first protection plate and the second protection plate are arranged at the bottom of the inner floating roof shell and are both of a wave-shaped design, the influence of liquid level fluctuation on the inner floating roof shell can be reduced, the inner floating roof shell stably moves, and therefore abrasion of connection between the inner floating roof shell and the upper and lower guiding positions is reduced, and the service life of the inner floating roof shell is prolonged. The service life of the inner floating roof shell is prolonged, and meanwhile the sealing effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of internal floating roofs, in particular to a large compensation sealing device for internal floating roofs. Background Art

[0002] The internal floating roof is a floating roof cover that floats on the liquid surface of the oil tank and rises and falls with the oil. It does not pollute the oil or chemicals itself, can reduce the volatilization loss of the medium, and prevent air pollution. When the internal floating roof is in use, it needs to be fully compensated and sealed with the inside of the oil storage tank to reduce oil evaporation.

[0003] In the prior art, when the internal floating roof is used in conjunction with a sealing device, the sealing device needs to be installed above the internal floating roof to seal the inside of the oil tank. However, a general sealing device has only a single layer and has poor sealing performance. When wall hanging occurs, there is a situation where the oil and gas hanging on the wall exchange with the gas at the sealing edge, resulting in affected sealing performance. Utility Model Content

[0004] The utility model aims to solve the problem that the sealing device in the prior art has only a single layer, and there is oil and gas hanging on the wall exchanging with the gas at the sealing edge, resulting in the sealing being affected, and proposes a large compensation sealing device for an internal floating roof.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a large compensation sealing device for an internal floating roof, comprising an internal floating roof shell, a fixing plate fixedly connected to one side of the internal floating roof shell, a mounting groove is provided on the outer surface of the fixing plate, a sealing ring is arranged inside the mounting groove, a first mounting plate is arranged on one side of the sealing ring, an inner ring surface of the first mounting plate is fixedly connected to the outer surface of the fixing plate, a second mounting plate is arranged on the other side of the sealing ring, an inner ring surface of the second mounting plate is fixedly connected to the outer surface of the fixing plate, a first sealing scraper is arranged on one side of the first mounting plate, and a second sealing scraper is arranged on one side of the second mounting plate.

[0006] Preferably, a fixing bolt is installed on one side of the first sealing scraper, and one end of the fixing bolt passes through the first mounting plate, the sealing ring, the second mounting plate and the second sealing scraper in sequence.

[0007] Preferably, a second protective plate is fixedly connected to one side of the inner floating roof shell, a first protective plate is fixedly connected to the middle of the second protective plate, the first protective plate is perpendicular to the second protective plate, and a through hole is provided on one side of the first protective plate and the second protective plate.

[0008] Preferably, a support leg is fixedly connected to one side of the inner floating roof shell.

[0009] Preferably, a buoy is fixedly connected to the interior of the inner floating roof shell.

[0010] Preferably, support frames are provided on both sides of the buoy, and both ends of the support frames are fixedly connected to the inner side of the inner floating roof shell.

[0011] Preferably, a middle portion of the inner floating roof shell is fixedly connected to a manhole.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, the outer surface of the sealing ring is closely fitted with the inner wall of the oil tank, so that the interior of the oil tank can be initially sealed. The first sealing scraper and the second sealing scraper are arranged so that the inner floating roof shell is completely sealed with the inner wall of the oil tank during the up and down movement. At the same time, the oil and gas that may exist on the inner wall of the oil tank are scraped off to prevent it from contacting with the outside air, thereby improving the sealing performance.

[0014] 2. In the utility model, a first protective plate and a second protective plate are provided at the bottom of the inner floating roof shell, and both the first protective plate and the second protective plate are of wave-shaped design, and through holes are provided above the first protective plate and the second protective plate, which can reduce the influence of liquid level fluctuation on the inner floating roof shell, so that the inner floating roof shell can move stably, thereby reducing the wear of the connection between the inner floating roof shell and the upper and lower guides, increasing the service life of the inner floating roof shell, and improving the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional structural schematic diagram of a large compensation sealing device for an internal floating roof is proposed for the utility model;

[0016] Figure 2 A schematic diagram of the disassembled structure of a large compensating sealing device for an internal floating roof is provided for the utility model;

[0017] Figure 3 The utility model provides a schematic diagram of the internal cross-sectional structure of a large compensation sealing device for an internal floating roof;

[0018] Figure 4 A schematic diagram of the planar structure of a large compensating sealing device for an internal floating roof is provided for the utility model;

[0019] Figure 5 The utility model proposes a large compensation sealing device for internal floating roof. Figure 4 Schematic diagram of the local enlarged structure at point A.

[0020] Legend: 1. Inner floating roof shell; 2. Fixing bolts; 3. First sealing scraper; 4. Support legs; 5. Manhole; 6. First mounting plate; 7. Sealing ring; 8. Second sealing scraper; 9. Fixing plate; 10. First protective plate; 11. Second protective plate; 12. Mounting groove; 13. Float; 14. Through hole; 15. Support frame; 16. Second mounting plate. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Embodiment 1, as Figure 1-5 As shown, the utility model provides a large compensation sealing device for an inner floating roof, comprising an inner floating roof shell 1, a fixing plate 9 is fixedly connected to one side of the inner floating roof shell 1, a mounting groove 12 is provided on the outer surface of the fixing plate 9, a sealing ring 7 is arranged inside the mounting groove 12, a first mounting plate 6 is arranged on one side of the sealing ring 7, an inner ring surface of the first mounting plate 6 is fixedly connected to the outer surface of the fixing plate 9, a second mounting plate 16 is arranged on the other side of the sealing ring 7, an inner ring surface of the second mounting plate 16 is fixedly connected to the outer surface of the fixing plate 9, a first sealing scraper 3 is arranged on one side of the first mounting plate 6, and a second sealing scraper 8 is arranged on one side of the second mounting plate 16; a fixing bolt 2 is installed on one side of the first sealing scraper 3, and one end of the fixing bolt 2 passes through the first mounting plate 6, the sealing ring 7, the second mounting plate 16 and the second sealing scraper 8 in sequence.

[0024] A fixing plate 9 is fixed on one side of the inner floating roof shell 1, and the sealing ring 7 is inserted into the mounting groove 12 provided on the outside of the fixing plate 9. The outer side of the sealing ring 7 is tightly fitted with the inner side of the mounting groove 12. When in use, the outer surface of the sealing ring 7 is tightly fitted with the inner wall of the oil tank, and the interior of the oil tank can be initially sealed. At the same time, the first sealing scraper 3 and the second sealing scraper 8 are respectively fixedly connected to the first mounting plate 6 and the second mounting plate 16 by the fixing bolts 2. The first sealing scraper 3 and the second sealing scraper 8 are both inclined in design, and the first sealing scraper 3 and the second sealing scraper 8 are axially symmetrically arranged. The arrangement of the first sealing scraper 3 and the second sealing scraper 8 enables the inner floating roof shell 1 to be completely sealed with the inner wall of the oil tank during the up and down movement, and at the same time, the oil and gas that may exist on the inner wall of the oil tank are scraped off to prevent it from contacting with the outside air, thereby improving the sealing performance.

[0025] Embodiment 2, as Figure 1-5 As shown, a second protective plate 11 is fixedly connected to one side of the inner floating roof shell 1, a first protective plate 10 is fixedly connected to the middle of the second protective plate 11, the first protective plate 10 is perpendicular to the second protective plate 11, and a through hole 14 is opened on one side of the first protective plate 10 and the second protective plate 11; a support leg 4 is fixedly connected to one side of the inner floating roof shell 1; a buoy 13 is fixedly connected to the inside of the inner floating roof shell 1; support frames 15 are provided on both sides of the buoy 13, and both ends of the support frame 15 are fixedly connected to the inner side of the inner floating roof shell 1; and a manhole 5 is fixedly connected to the middle of the inner floating roof shell 1.

[0026] A plurality of buoys 13 are arranged inside the inner floating roof shell 1 to provide buoyancy for the inner floating roof shell 1 to float. A support frame 15 is fixed inside the inner floating roof shell 1, and the support frame 15 is arranged at intervals from the buoys 13. A plurality of support legs 4 are fixed at the bottom of the inner floating roof shell 1, and the support legs 4 are distributed in an annular manner at the bottom of the inner floating roof shell 1. The arrangement of the support legs 4 can provide a supporting force for the inner floating roof shell 1, so that the inner floating roof shell 1 maintains a certain height with the tank bottom when it falls on the tank bottom. A first protective plate 10 and a second protective plate 11 are arranged at the bottom of the inner floating roof shell 1, and the first protective plate 10 and the second protective plate 11 are vertically fixed. The first protective plate 10 and the second protective plate 11 are both wavy in design, and through holes 14 are opened above the first protective plate 10 and the second protective plate 11 to reduce the fluctuation of the liquid level and facilitate the stable movement of the inner floating roof shell 1, thereby reducing the wear of the connection between the inner floating roof shell 1 and the upper and lower guides, and improving the service life of the inner floating roof shell 1.

[0027] The use method and working principle of the device: When in use, the outer surface of the sealing ring 7 is tightly fitted with the inner wall of the oil tank, which can perform a preliminary seal on the inside of the oil tank. At the same time, the first sealing scraper 3 and the second sealing scraper 8 are respectively fixedly connected to the first mounting plate 6 and the second mounting plate 16 by the fixing bolts 2. The first sealing scraper 3 and the second sealing scraper 8 are both inclined in design, and the first sealing scraper 3 and the second sealing scraper 8 are axially symmetrically arranged. The arrangement of the first sealing scraper 3 and the second sealing scraper 8 makes the inner floating roof shell 1 completely sealed with the inner wall of the oil tank during the up and down movement. By setting A plurality of floats 13 are used to provide buoyancy for the inner floating roof shell 1. A plurality of support legs 4 are fixed at the bottom of the inner floating roof shell 1 to provide support for the inner floating roof shell 1. A first protective plate 10 and a second protective plate 11 are arranged at the bottom of the inner floating roof shell 1, and the first protective plate 10 and the second protective plate 11 are vertically fixed. The first protective plate 10 and the second protective plate 11 are both of wavy design, and through holes 14 are opened above the first protective plate 10 and the second protective plate 11 to reduce the influence of the fluctuation of the liquid level on the inner floating roof shell 1 and facilitate the stable movement of the inner floating roof shell 1.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A large compensating sealing device for an internal floating roof, comprising an internal floating roof shell (1), characterized in that: A fixing plate (9) is fixedly connected to one side of the inner floating roof shell (1), a mounting groove (12) is provided on the outer surface of the fixing plate (9), a sealing ring (7) is arranged inside the mounting groove (12), a first mounting plate (6) is arranged on one side of the sealing ring (7), an inner ring surface of the first mounting plate (6) is fixedly connected to the outer surface of the fixing plate (9), a second mounting plate (16) is arranged on the other side of the sealing ring (7), an inner ring surface of the second mounting plate (16) is fixedly connected to the outer surface of the fixing plate (9), a first sealing scraper (3) is arranged on one side of the first mounting plate (6), and a second sealing scraper (8) is arranged on one side of the second mounting plate (16).

2. A large compensating sealing device for an internal floating roof according to claim 1, characterized in that: A fixing bolt (2) is installed on one side of the first sealing scraper (3), and one end of the fixing bolt (2) passes through the first mounting plate (6), the sealing ring (7), the second mounting plate (16) and the second sealing scraper (8) in sequence.

3. A large compensating sealing device for an internal floating roof according to claim 1, characterized in that: A second protective plate (11) is fixedly connected to one side of the inner floating roof shell (1), a first protective plate (10) is fixedly connected to the middle of the second protective plate (11), the first protective plate (10) and the second protective plate (11) are perpendicular to each other, and a through hole (14) is provided on one side of each of the first protective plate (10) and the second protective plate (11).

4. A large compensating sealing device for an internal floating roof according to claim 1, characterized in that: A support leg (4) is fixedly connected to one side of the inner floating roof shell (1).

5. A large compensating sealing device for an internal floating roof according to claim 1, characterized in that: A buoy (13) is fixedly connected to the interior of the inner floating roof shell (1).

6. A large compensating sealing device for an internal floating roof according to claim 5, characterized in that: Support frames (15) are provided on both sides of the buoy (13), and both ends of the support frames (15) are fixedly connected to the inner side of the inner floating roof shell (1).

7. A large compensating sealing device for an internal floating roof according to claim 1, characterized in that: The middle portion of the inner floating roof shell (1) is fixedly connected to a manhole (5).

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