Stainless steel honeycomb inner floating roof with large compensation elastic mechanical seal structure

Abstract

The utility model discloses a stainless steel honeycomb type inner floating roof of big compensation elastic mechanical seal structure, including the inner floating roof body, the outside of inner floating roof body is equipped with the sealing washer, the center of inner floating roof body is equipped with the round hole, the inboard of round hole is slidably installed with the center floating plate, the upper surface of inner floating roof body is equipped with the moving plate, the moving plate is circular array distribution around the center of center floating plate, the end of moving plate is fixed with the moving elastic arc plate near the sealing washer, and the slidingly equipped with the connecting elastic arc plate between every two adjacent moving elastic arc plate. The utility model discloses when using, liquid buoyancy promotes the center floating plate and makes the center floating plate move upwards to make moving plate, moving elastic arc plate and connecting elastic arc plate extrude to the sealing washer direction, make sealing washer always keep the adhesion with the inner wall of tank, thereby guaranteeing that sealing washer can always guarantee the leakproofness between inner floating roof body and tank after the wear of sealing washer.

Description

Technical Field

[0001] This utility model relates to the field of internal floating roof technology, specifically to a stainless steel honeycomb internal floating roof with a large-compensation elastic mechanical seal structure. Background Technology

[0002] An internal floating roof is a floating roof that floats on the surface of the oil tank and rises and falls with the oil. The economic value of reducing oil and gas volatilization within three to six months is equivalent to the cost of installing and purchasing the internal floating roof. In other words, the cost of the internal floating roof can be recovered within six months. It can be used for docking tanks and overlapping tanks of various sizes. It does not contaminate oil or chemicals itself, reduces the loss of the medium due to volatilization, and prevents air pollution.

[0003] However, the existing sealing material between the internal floating roof and the tank relies on its own elasticity to fit the tank. After the sealing material wears down, gaps will appear between the internal floating roof and the tank. Therefore, it does not meet the current requirements. To address this, we propose a stainless steel honeycomb internal floating roof with a large-compensation elastic mechanical seal structure. Utility Model Content

[0004] The purpose of this invention is to provide a stainless steel honeycomb internal floating roof with a large-compensation elastic mechanical seal structure to solve the problems mentioned in the background art, such as the sealing material between the internal floating roof and the tank relying on its own elasticity to fit with the tank, which leads to gaps between the internal floating roof and the tank after the sealing material wears down.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a stainless steel honeycomb inner floating roof with a large-compensation elastic mechanical seal structure, comprising an inner floating roof body, a sealing ring on the outer side of the inner floating roof body, a circular hole at the center of the inner floating roof body, a central floating plate slidably installed inside the circular hole, a movable plate on the upper surface of the inner floating roof body, the movable plates being arranged in a circular array around the center of the central floating plate, a movable elastic arc plate fixed at the end of the movable plate near the sealing ring, and a connecting elastic arc plate slidably provided between every two adjacent movable elastic arc plates, the connecting elastic arc plate and the movable elastic arc plate fitting against the inner wall of the sealing ring.

[0006] Preferably, a buoyancy airbag is adhered to the bottom of the central floating plate, and the buoyancy airbag is hollow and filled with inert gas.

[0007] Preferably, limiting plates are provided on both sides of the movable plate. The limiting plates are L-shaped and their top ends slide in contact with the upper surface of the movable plate. The bottom ends of the limiting plates are fixed to the inner floating roof body.

[0008] Preferably, the movable plate has a guide slope at the end near the central floating plate, and the inclination angle of the guide slope is thirty degrees.

[0009] Preferably, the bottom edge of the guide slope is tangent to the top edge of the central floating plate, and the length of the guide slope is greater than the thickness of the sealing ring.

[0010] Preferably, the inner wall of the circular hole is provided with a guide ring groove, and a sealing connecting ring is fixed on the outer surface of the central floating plate, and the sealing connecting ring is slidably engaged with the inner side of the guide ring groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention utilizes the buoyancy of the liquid to push the central floating plate upward during the use of the internal floating roof. This causes the central floating plate to press the moving plate, the moving elastic arc plate, and the connecting elastic arc plate towards the sealing ring, ensuring that the sealing ring always remains in contact with the inner wall of the tank. This guarantees that even after wear occurs, the sealing ring will always maintain the seal between the internal floating roof body and the tank. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the limiting plate of this utility model;

[0015] Figure 3 This is a structural cross-sectional view of the main body of the internal floating roof of this utility model.

[0016] In the diagram: 1. Inner floating roof main body; 2. Central floating plate; 3. Moving plate; 4. Sealing ring; 5. Connecting elastic arc plate; 6. Moving elastic arc plate; 7. Limiting plate; 8. Buoyancy airbag; 9. Guide slope; 10. Sealing connection ring; 11. Guide ring groove. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] like Figures 1 to 3 As shown, the stainless steel honeycomb internal floating roof with a large-compensation elastic mechanical seal structure includes...

[0019] The system includes an inner floating roof body 1, with a sealing ring 4 on the outer side. A circular hole is located at the center of the inner floating roof body 1, and a central floating plate 2 is slidably installed inside the circular hole. A movable plate 3 is located on the upper surface of the inner floating roof body 1, and the movable plates 3 are arranged in a circular array around the center of the central floating plate 2. A movable elastic arc plate 6 is fixed to the end of the movable plate 3 near the sealing ring 4. A connecting elastic arc plate 5 is slidably provided between every two adjacent movable elastic arc plates 6. The connecting elastic arc plate 5 and the movable elastic arc plate 6 are in contact with the inner wall of the sealing ring 4. When the inner floating roof is in use, the buoyancy of the liquid pushes the central floating plate 2 upward, causing the central floating plate 2 to press the movable plate 3, the movable elastic arc plate 6 and the connecting elastic arc plate 5 towards the sealing ring 4, so that the sealing ring 4 always remains in contact with the inner wall of the tank.

[0020] A buoyancy airbag 8 is bonded to the bottom of the central floating plate 2. The interior of the buoyancy airbag 8 is hollow and filled with inert gas. The liquid first contacts the buoyancy airbag 8 and pushes the buoyancy airbag 8 and the central floating plate 2 upward, thereby causing the central floating plate 2 to squeeze the end of the moving plate 3 and make the moving plate 3 move closer to the sealing ring 4.

[0021] Limiting plates 7 are provided on both sides of the movable plate 3. The limiting plates 7 are L-shaped and their top ends slide in contact with the upper surface of the movable plate 3. The bottom end of the limiting plates 7 is fixed to the inner floating roof body 1. The limiting plates 7 restrict the position and direction of movement of the movable plate 3, so that after the end of the movable plate 3 is squeezed by the central floating plate 2, the movable plate 3 can only move along the length direction of the movable plate 3.

[0022] The movable plate 3 is provided with a guide slope 9 at the end near the central floating plate 2. The inclination angle of the guide slope 9 is 30 degrees. The bottom edge of the guide slope 9 is tangent to the top edge of the central floating plate 2. The length of the guide slope 9 is greater than the thickness of the sealing ring 4. The presence of the guide slope 9 causes the movable plate 3 to be subjected to an upward force after the central floating plate 2 moves upward, thereby ensuring that the movable plate 3 moves along its length direction.

[0023] The inner wall of the circular hole is provided with a guide ring groove 11, and a sealing connecting ring 10 is fixed on the outer surface of the central floating plate 2. The sealing connecting ring 10 is slidably engaged with the inner side of the guide ring groove 11. The presence of the sealing connecting ring 10 ensures that the central floating plate 2 will not fall out of the circular hole at the center of the inner floating top body 1.

[0024] Working principle: When the internal floating roof is installed inside the tank for use, the stored liquid is poured into the tank. As the liquid fills the tank, it first contacts the buoyancy airbag 8 at the bottom of the central floating plate 2, pushing the buoyancy airbag 8 and the central floating plate 2 upwards until the buoyancy airbag 8 contacts the main body of the internal floating roof 1. Only then does the liquid push the main body of the internal floating roof 1, subsequently pushing the buoyancy airbag 8, the main body of the internal floating roof 1, and the central floating plate 2 upwards. During this process, the central floating plate 2 moves upwards under the influence of the buoyancy airbag 8 and... The guide slope 9 at the end of the movable plate 3 is squeezed. Since the movable plate 3 is restricted by the limiting plates 7 on both sides, the movable plate 3 moves towards the sealing ring 4 and causes the movable elastic arc plate 6 to squeeze the sealing ring 4. At the same time, the movable elastic arc plate 6 pushes the connecting elastic arc plate 5 to move, so that the connecting elastic arc plate 5 also squeezes the sealing ring 4, so that the sealing ring 4 always stays in contact with the inner wall of the tank, thereby ensuring that the sealing ring 4 can always guarantee the sealing between the inner floating roof body 1 and the tank after wear occurs.

[0025] 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.

Claims

1. A stainless steel honeycomb internal floating roof with a large-compensation elastic mechanical seal structure, comprising an internal floating roof body (1), characterized in that: The inner floating roof body (1) is provided with a sealing ring (4) on the outside. The inner floating roof body (1) is provided with a circular hole at the center. A central floating plate (2) is slidably installed inside the circular hole. A movable plate (3) is provided on the upper surface of the inner floating roof body (1). The movable plates (3) are arranged in a circular array around the center of the central floating plate (2). A movable elastic arc plate (6) is fixed at the end of the movable plate (3) near the sealing ring (4). A connecting elastic arc plate (5) is slidably provided between every two adjacent movable elastic arc plates (6). The connecting elastic arc plate (5) and the movable elastic arc plate (6) fit against the inner wall of the sealing ring (4).

2. The stainless steel honeycomb inner floating roof of the large-compensation elastic mechanical seal structure according to claim 1, characterized in that: The bottom of the central floating plate (2) is bonded with a buoyancy airbag (8), which is hollow inside and filled with inert gas.

3. The stainless steel honeycomb internal floating roof of the large-compensation elastic mechanical seal structure according to claim 1, characterized in that: The movable plate (3) is provided with limiting plates (7) on both sides. The limiting plates (7) are L-shaped and their top ends slide in contact with the upper surface of the movable plate (3). The bottom end of the limiting plates (7) is fixed to the inner floating roof body (1).

4. The stainless steel honeycomb internal floating roof with a large-compensation elastic mechanical seal structure according to claim 3, characterized in that: The movable plate (3) has a guide slope (9) at the end near the central floating plate (2), and the guide slope (9) has an inclination angle of thirty degrees.

5. The stainless steel honeycomb internal floating roof of the large-compensation elastic mechanical seal structure according to claim 4, characterized in that: The bottom edge of the guide slope (9) is tangent to the top edge of the central floating plate (2), and the length of the guide slope (9) is greater than the thickness of the sealing ring (4).

6. The stainless steel honeycomb internal floating roof of the large-compensation elastic mechanical seal structure according to claim 1, characterized in that: The inner wall of the circular hole is provided with a guide ring groove (11), and a sealing connecting ring (10) is fixed on the outer surface of the central floating plate (2). The sealing connecting ring (10) is slidably engaged in the inner side of the guide ring groove (11).

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