Mechanical shoe-shaped elastic efficient sealing device for floating roof of storage tank

Abstract

The utility model provides a mechanical shoe-shaped elastic efficient sealing device for a floating roof of a storage tank, which belongs to the technical field of floating roof storage tanks and comprises a cover plate, a buoyancy plate, an arc-shaped sealing plate and a rectangular sealing plate. After the storage tank is filled with liquid, the device covers the matched storage tank, after the buoyancy plate floats on the liquid level, the pull rope is in a loose state, and the arc-shaped sealing plate and the rectangular sealing plate are tightly attached to the inner side surface of the storage tank under the action of elasticity of a first sleeving spring and a second sleeving spring on the first elastic assembly and the second elastic assembly. The arc-shaped sealing plate and the rectangular sealing plate are tightly attached to each other, the effect of sealing the storage tank is achieved, when liquid stored in the storage tank is used, the liquid level in the storage tank descends, the device moves downwards under the action of gravity, and it is guaranteed that the buoyancy plate always floats on the liquid level in the storage tank; and in the downward moving process of the arc-shaped sealing plate and the rectangular sealing plate, the inner side surface of the storage tank is scraped, and cleanliness of the interior of the storage tank is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of floating roof storage tanks, and particularly relates to a mechanical shoe-shaped elastic and efficient sealing device for the floating roof of a storage tank. Background Art

[0002] The floating roof storage tank is an important storage device, which is widely used in industries such as petroleum and chemical industry for storing media such as fuel oil and liquid chemicals. The existing sealing device cannot adjust the pressing force between it and the storage tank wall. When the oil in the storage tank is emptied, the residual oil amount on the storage tank wall is less or dry. Therefore, when the floating roof needs to be moved upward at this time, the sealing device increases the difficulty of removal and at the same time intensifies the friction between the sealing device and the storage tank wall.

[0003] For example, in the prior art, the patent with the authorization announcement number CN215707987U discloses an elastic sealing device for a floating roof storage tank. This device drives the top block to retract and extend through an adjusting mechanism, and can adjust the extrusion force of the elastic sealing block on the storage tank wall. When the floating roof body is lifted, the gap between the floating roof body and the inner wall of the storage tank can be increased, the friction force can be reduced, the pulling force for pulling up the floating roof body can be reduced, and the friction loss of the elastic sealing block can be reduced.

[0004] However, this device uses multiple top blocks to push the elastic sealing block to adjust the extrusion force between the sealing block and the storage tank wall, so as to achieve the sealing effect. Although the sealing effect is good, using multiple top blocks to push the elastic sealing block causes the elastic sealing block to deform continuously, which easily affects the service life of the sealing block and the subsequent sealing effect. Therefore, an elastic sealing device for a floating roof storage tank is designed to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problems existing in the above background art, and to propose a mechanical shoe-shaped elastic and efficient sealing device for the floating roof of a storage tank.

[0006] The technical problem to be solved by the utility model is to provide a mechanical shoe-shaped elastic and efficient sealing device for the floating roof of a storage tank, and solve the problem in the prior art that by using a top block to push an elastic sealing block, the elastic sealing block deforms to change the friction force between the sealing block and the storage tank, and the continuous deformation of the elastic sealing block easily affects the service life of the elastic sealing block.

[0007] The utility model provides a mechanical shoe-shaped elastic and efficient sealing device for a storage tank floating roof, which comprises a cover plate, a buoyancy plate, an arc-shaped sealing plate and a rectangular sealing plate. The buoyancy plate is of a hollow box structure, and connecting columns are fixedly arranged on both the left and right sides of the upper surface of the buoyancy plate. The top of the connecting column is fixedly provided with a cover plate. The arc-shaped sealing plate is fixedly arranged on both the left and right sides of the upper surface of the buoyancy plate through an elastic component I. The rectangular sealing plate is fixedly arranged on both the inner and outer sides of the upper surface of the buoyancy plate through an elastic component II.

[0008] Preferably, the elastic component I comprises a first guide rod, a first fixing column and a first socket spring. The first guide rod is fixedly arranged on the inner surface of the arc-shaped sealing plate. The first fixing column penetrates through the first guide rod and is fixedly arranged on the upper surface of the buoyancy plate. A first socket spring is fixedly arranged between the arc-shaped sealing plate and the first fixing column.

[0009] Preferably, the elastic component II comprises a second guide rod, a second fixing column and a second socket spring. The second guide rod is fixedly arranged on the inner surface of the rectangular sealing plate. The second fixing column penetrates through the second guide rod and is fixedly arranged on the upper surface of the buoyancy plate. A second socket spring is fixedly arranged between the rectangular sealing plate and the second fixing column.

[0010] Preferably, concave frames are fixedly arranged at the ends of the two first guide rods far away from the arc-shaped sealing plate. A connecting rod is rotatably arranged on the two concave frames through a pin shaft. The other end of the connecting rod is fixedly provided with an inverted concave frame. A connecting plate is fixedly arranged between the two inverted concave frames.

[0011] Preferably, a through groove is formed in the center of the upper surface of the cover plate, and the two connecting rods penetrate through the through groove.

[0012] Preferably, a pull rope is fixedly arranged at the center of the upper surface of the connecting plate. The upper part of the pull rope is wound around a winding rod. The winding rod is rotatably arranged on a fixed seat. A motor is installed on the outer surface of the fixed seat, and the output end of the motor is fixedly arranged on the winding rod. The fixed seat is installed above the storage tank.

[0013] Preferably, the end of the arc-shaped sealing plate is in an inclined slope shape, and the two ends of the rectangular sealing plate are in an inclined slope shape. The end of the arc-shaped sealing plate matches the end of the rectangular sealing plate. The rectangular sealing plate is in an isosceles trapezoid shape with a smaller width on the side far away from the buoyancy plate.

[0014] Preferably, when the arc-shaped sealing plate and the rectangular sealing plate are both attached to the inner surface of the storage tank, the first socket spring and the second socket spring are both in a compressed state, and at this time, the arc-shaped sealing plate and the rectangular sealing plate are closely attached to each other.

[0015] Compared with the prior art, the utility model has at least the following beneficial effects:

[0016] 1. The utility model is provided with an elastic component I and an elastic component II. During actual use, after the storage tank is filled with the liquid to be stored, the device is covered in a matching storage tank. After the buoyancy plate floats on the liquid surface, the pulling rope is in a relaxed state. Under the action of the elastic forces of the first socket spring and the second socket spring on the elastic component I and the elastic component II, the arc-shaped sealing plate and the rectangular sealing plate are closely attached to the inner surface of the storage tank, and the arc-shaped sealing plate and the rectangular sealing plate are closely attached to each other, achieving the effect of sealing the storage tank. When using the liquid stored in the storage tank, the liquid level in the storage tank drops. Under the action of the gravity of the device, the cover plate, the buoyancy plate, the arc-shaped sealing plate and the rectangular sealing plate all move downward, ensuring that the buoyancy plate always floats on the liquid surface in the storage tank. During the downward movement of the arc-shaped sealing plate and the rectangular sealing plate, the inner surface of the storage tank is scraped to ensure the cleanliness of the inner surface of the storage tank.

[0017] 2. After the liquid in the storage tank of the utility model is used up, the motor drives the winding rod to rotate. The winding rod winds the pulling rope, and the pulling rope pulls the connecting plate to move upward. As the connecting plate moves upward, two connecting rods are used to pull two first guide rods to move in opposite directions. The first guide rods pull the arc-shaped sealing plate to move in opposite directions, so that the arc-shaped sealing plate does not contact the inner surface of the storage tank. At the same time, when the arc-shaped sealing plate moves in opposite directions, it squeezes the rectangular sealing plate, causing the rectangular sealing plate to move in opposite directions, so that the rectangular sealing plate does not contact the inner surface of the storage tank. This facilitates the hoisting of the device, prevents friction between the arc-shaped sealing plate and the rectangular sealing plate and the storage tank, prevents damage to the arc-shaped sealing plate and the rectangular sealing plate, and facilitates the removal of the floating roof. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally denoted by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 Schematic three-dimensional view of the overall structure of the utility model Figure 1 。

[0020] Figure 2 Schematic three-dimensional view of the partial structure of the utility model Figure 1 。

[0021] Figure 3 Schematic three-dimensional view of the partial structure of the utility model Figure 2 。

[0022] Figure 4Schematic three - dimensional view of the overall structure of the present utility model Figure 2 。

[0023] [Reference numerals]

[0024] 1. Fixed seat; 2. Motor; 3. Winding rod; 4. Pulling rope; 5. Cover plate; 501. Through - groove; 6. Buoyancy plate; 601. Connecting column; 7. Arc - shaped sealing plate; 701. First guiding rod; 702. First fixing column; 703. First socket spring; 8. Rectangular sealing plate; 801. Second guiding rod; 802. Second fixing column; 803. Second socket spring; 9. Concave - shaped frame; 10. Connecting rod; 11. Inverted concave - shaped frame; 12. Connecting plate. Detailed implementation manners

[0025] Embodiment:

[0026] As Figures 1 - 4 shown, the embodiment of the present utility model provides a mechanical shoe - shaped elastic and efficient sealing device for a storage tank floating roof, including a cover plate 5, a buoyancy plate 6, an arc - shaped sealing plate 7 and a rectangular sealing plate 8. The buoyancy plate 6 is a hollow box - shaped structure, and connecting columns 601 are fixedly arranged on both the left and right sides of the upper surface of the buoyancy plate 6. The top of the connecting column 601 is fixedly provided with a cover plate 5. The arc - shaped sealing plate 7 is fixedly arranged on both the left and right sides of the upper surface of the buoyancy plate 6 through elastic component one, and the rectangular sealing plate 8 is fixedly arranged on both the inner and outer sides of the upper surface of the buoyancy plate 6 through elastic component two.

[0027] In this embodiment, elastic component one includes a first guiding rod 701, a first fixing column 702 and a first socket spring 703. The first guiding rod 701 is fixedly arranged on the inner surface of the arc - shaped sealing plate 7. The first fixing column 702 is penetrated through the first guiding rod 701, and the first fixing column 702 is fixedly arranged on the upper surface of the buoyancy plate 6. A first socket spring 703 is fixedly arranged between the arc - shaped sealing plate 7 and the first fixing column 702.

[0028] In this embodiment, elastic component two includes a second guiding rod 801, a second fixing column 802 and a second socket spring 803. The second guiding rod 801 is fixedly arranged on the inner surface of the rectangular sealing plate 8. The second fixing column 802 is penetrated through the second guiding rod 801, and the second fixing column 802 is fixedly arranged on the upper surface of the buoyancy plate 6. A second socket spring 803 is fixedly arranged between the rectangular sealing plate 8 and the second fixing column 802.

[0029] In this embodiment, the ends of the two first guiding rods 701 far away from the arc - shaped sealing plate 7 are fixedly provided with concave - shaped frames 9. A connecting rod 10 is rotatably arranged on the two concave - shaped frames 9 through a pin shaft. The other end of the connecting rod 10 is fixedly provided with an inverted concave - shaped frame 11. A connecting plate 12 is fixedly arranged between the two inverted concave - shaped frames 11.

[0030] In this embodiment, a through groove 501 is formed in the center of the upper surface of the cover plate 5, and two connecting rods 10 penetrate through the through groove 501.

[0031] In this embodiment, a pull rope 4 is fixedly arranged in the center of the upper surface of the connecting plate 12. The upper part of the pull rope 4 is wound around the winding rod 3. The winding rod 3 is rotatably arranged on the fixed seat 1. A motor 2 is installed on the outer surface of the fixed seat 1, and the output end of the motor 2 is fixedly arranged on the winding rod 3. The fixed seat 1 is installed above the storage tank.

[0032] In this embodiment, the end of the arc-shaped sealing plate 7 is in an inclined slope shape, and the two ends of the rectangular sealing plate 8 are in an inclined slope shape. The end of the arc-shaped sealing plate 7 matches the end of the rectangular sealing plate 8. The rectangular sealing plate 8 is in an isosceles trapezoid shape with a smaller width on the side away from the buoyancy plate 6.

[0033] In this embodiment, when the arc-shaped sealing plate 7 and the rectangular sealing plate 8 are both attached to the inner surface of the storage tank, the first socket spring 703 and the second socket spring 803 are both in a compressed state, and at this time, the arc-shaped sealing plate 7 and the rectangular sealing plate 8 are in close contact with each other.

[0034] By providing the first elastic component and the second elastic component, during actual use, after the storage tank is filled with the liquid to be stored, the device is covered in the matching storage tank. After the buoyancy plate 6 floats on the liquid surface, the pull rope 4 is in a relaxed state. Under the action of the elastic forces of the first socket spring 703 and the second socket spring 803 on the first elastic component and the second elastic component, the arc-shaped sealing plate 7 and the rectangular sealing plate 8 are in close contact with the inner surface of the storage tank, and the arc-shaped sealing plate 7 and the rectangular sealing plate 8 are in close contact with each other, achieving the effect of sealing the storage tank. When using the liquid stored in the storage tank, the liquid level in the storage tank drops. Under the action of the gravity of the device, the cover plate 5, the buoyancy plate 6, the arc-shaped sealing plate 7 and the rectangular sealing plate 8 all move downward, ensuring that the buoyancy plate 6 always floats on the liquid surface in the storage tank. During the downward movement of the arc-shaped sealing plate 7 and the rectangular sealing plate 8, the inner surface of the storage tank is scraped to ensure the cleanliness of the inner surface of the storage tank.

[0035] After the liquid in the storage tank is used up, the motor 2 drives the winding rod 3 to rotate. The winding rod 3 winds the pulling rope 4. The pulling rope 4 pulls the connecting plate 12 to move upward. As the connecting plate 12 moves upward, two connecting rods 10 pull two first guide rods 701 to move in opposite directions. The first guide rods 701 pull the arc-shaped sealing plate 7 to move in opposite directions, so that the arc-shaped sealing plate 7 does not contact the inner surface of the storage tank. At the same time, when the arc-shaped sealing plate 7 moves in opposite directions, it squeezes the rectangular sealing plate 8, causing the rectangular sealing plate 8 to move in opposite directions, so that the rectangular sealing plate 8 does not contact the inner surface of the storage tank. While facilitating the hoisting of the device, it prevents friction between the arc-shaped sealing plate 7 and the rectangular sealing plate 8 and the storage tank, prevents damage to the arc-shaped sealing plate 7 and the rectangular sealing plate 8, and facilitates the removal of the floating roof at the same time.

[0036] The above are only the preferred embodiments of the present invention. It should be noted that for those skilled in the art, without departing from the concept of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicability of the patent.

Claims

1. A mechanical shoe-shaped elastic high-efficiency sealing device for a tank floating roof, characterized in that: The invention comprises a cover plate (5), a buoyancy plate (6), an arc-shaped sealing plate (7) and a rectangular sealing plate (8); the buoyancy plate (6) is a hollow box structure, and connecting columns (601) are fixedly arranged on both left and right sides of the upper surface of the buoyancy plate (6); the cover plate (5) is fixedly arranged on the top of the connecting columns (601); the arc-shaped sealing plates (7) are fixedly arranged on both left and right sides of the upper surface of the buoyancy plate (6) through an elastic component 1; and the rectangular sealing plates (8) are fixedly arranged on both inner and outer sides of the upper surface of the buoyancy plate (6) through an elastic component 2.

2. The mechanical shoe-shaped elastic high-efficiency sealing device for a tank floating roof according to claim 1 is characterized in that: The elastic component 1 includes a first guide rod (701), a first fixed column (702) and a first sleeve spring (703), wherein the first guide rod (701) is fixedly arranged on the inner surface of the arc-shaped sealing plate (7), the first fixed column (702) is penetrated by the first guide rod (701), and the first fixed column (702) is fixedly arranged on the upper surface of the buoyancy plate (6), and the first sleeve spring (703) is fixedly arranged between the arc-shaped sealing plate (7) and the first fixed column (702).

3. The mechanical shoe-shaped elastic high-efficiency sealing device for a tank floating roof according to claim 2 is characterized in that: The second elastic component includes a second guide rod (801), a second fixed column (802) and a second sleeve spring (803), the second guide rod is fixedly arranged on the inner surface of the rectangular sealing plate (8), the second fixed column (802) is penetrated by the second guide rod, and the second fixed column (802) is fixedly arranged on the upper surface of the buoyancy plate (6), and the second sleeve spring (803) is fixedly arranged between the rectangular sealing plate (8) and the second fixed column (802).

4. The mechanical shoe-shaped elastic high-efficiency sealing device for a tank floating roof according to claim 3 is characterized in that: A concave frame (9) is fixedly provided at one end of the two first guide rods (701) away from the arc-shaped sealing plate (7), a connecting rod (10) is fixedly provided on the two concave frames (9) and is rotatably provided via a pin shaft, an inverted concave frame (11) is fixedly provided at the other end of the connecting rod (10), and a connecting plate (12) is fixedly provided between the two inverted concave frames (11).

5. The mechanical shoe-shaped elastic high-efficiency sealing device for a tank floating roof according to claim 4 is characterized in that: A through groove (501) is provided in the center of the upper surface of the cover plate (5), and two connecting rods (10) penetrate through the through groove (501).

6. The mechanical shoe-shaped elastic high-efficiency sealing device for a tank floating roof according to claim 5 is characterized in that: A pull rope (4) is fixedly arranged at the center of the upper surface of the connecting plate (12), and the upper part of the pull rope (4) is wound on a winding rod (3). The winding rod (3) is rotatably arranged on a fixed seat (1). A motor (2) is installed on the outer surface of the fixed seat (1), and the output end of the motor (2) is fixedly arranged on the winding rod (3). The fixed seat (1) is installed above the storage tank.

7. The mechanical shoe-shaped elastic high-efficiency sealing device for a tank floating roof according to claim 6 is characterized in that: The end of the arc-shaped sealing plate (7) is in the shape of an inclined slope, and the two ends of the rectangular sealing plate (8) are in the shape of an inclined slope, and the end of the arc-shaped sealing plate (7) matches the end of the rectangular sealing plate (8), and the rectangular sealing plate (8) is in the shape of an isosceles trapezoid with a small width on the side away from the buoyancy plate (6).

8. The mechanical shoe-shaped elastic high-efficiency sealing device for a tank floating roof according to claim 7 is characterized in that: When the arc-shaped sealing plate (7) and the rectangular sealing plate (8) are both attached to the inner surface of the storage tank, the first sleeve spring (703) and the second sleeve spring (803) are both in a compressed state, and at this time, the arc-shaped sealing plate (7) and the rectangular sealing plate (8) are tightly attached to each other.

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