Annular edge-reinforced double-sealing floating disc

Abstract

The invention relates to the technical field of floating discs, in particular to an annular edge-reinforced double-sealing floating disc which comprises a storage tank, an annular groove is formed in the storage tank, a sealing cover is movably connected to the upper side of the storage tank in an inserted mode, a circular groove is formed in the middle of the inner wall of the sealing cover, and an O-shaped groove is formed in the lower side of the side face of the sealing cover. The side face of the O-shaped groove is fixedly sleeved with a sealing ring, and the side face of the sealing ring makes contact with the side face of the annular groove. According to the annular edge-reinforced double-sealing floating disc, a sealing cover is moved to the upper side of a storage tank, the sealing cover drives a sealing ring to move to the side face of an O-shaped groove, a sealing plate drives a rotating disc to rotate, an arc-shaped groove rotates, L-shaped rods are limited through a long groove, and the arc-shaped groove drives six L-shaped rods to open outwards at the same time; the sealing ring can be moved into the O-shaped groove by enabling the cross rod of the L-shaped rod to extrude the sealing ring, so that the storage tank is quickly sealed, and the possibility of volatilization of oil gas in the storage tank is reduced.

Description

Technical Field

[0001] This invention relates to the field of floating roof technology, specifically to a double-sealed floating roof with reinforced annular edges. Background Technology

[0002] In the petrochemical and related energy storage fields, floating roofs within storage tanks play a crucial role in energy conservation and environmental protection. Their core working principle lies in the ingenious use of liquid buoyancy: they act like a lightweight yet robust "floating dome" covering the surface of the liquid medium inside the tank, precisely rising and falling in sync with the liquid level, always maintaining close contact with the liquid surface. The primary purpose of installing such internal floating roofs is to construct a dynamic and efficient physical barrier. This barrier directly isolates the stored medium (especially volatile oils or chemical raw materials) from extensive contact with the gas phase space at the top of the tank. Through this substantial isolation, the equipment can extremely effectively suppress the unnecessary volatilization of the medium inside the tank. The direct benefits of this mechanism are numerous. In terms of its advantages, it not only significantly reduces the evaporation loss of valuable resources, saving enterprises considerable energy costs, but more importantly, it greatly reduces the emission of harmful substances such as volatile organic compounds into the atmosphere, thus making a positive contribution to protecting the air quality around us. By adding an internal floating roof, the storage tank achieves a tighter "sealed wrapping" and evaporation suppression of the stored medium, which is equivalent to putting an "energy-saving and environmentally friendly coat" on the storage tank. On the one hand, it reduces the direct economic losses and energy waste caused by the evaporation of the medium. On the other hand, by reducing the concentration of volatile gases in the gas phase space and reducing the evaporation heat absorption effect, it also helps to maintain a more stable state of the medium to a certain extent, further consolidating its energy-saving and environmental protection efficiency.

[0003] In the core structure of existing large oil storage tanks, the internal floating roof plays a crucial sealing role. It is usually installed tightly and securely on the floating roof body through specific mechanical structures or connection methods, forming an effective dynamic sealing interface to minimize the unnecessary loss of volatile oil and gas inside the tank. However, when ships carrying such storage tanks are transported at sea, the navigation environment is full of unpredictable challenges. Ships inevitably encounter various marine weather conditions, especially strong winds and giant waves. Such severe sea conditions can cause the hull to experience violent, multi-dimensional rolling, pitching and undulating. Under such continuous and complex dynamic loads, the originally solid internal floating roof fixing device will bear huge stress. This repeated and strong mechanical impact and vibration can easily have a cumulative effect on the fixing points of the floating roof, which in turn can easily lead to leakage and volatilization of oil and gas inside the storage tank.

[0004] In view of this, we propose a double-sealed floating roof with annular edge reinforcement. Summary of the Invention

[0005] The purpose of this invention is to provide a double-sealed floating roof with reinforced annular edges to address the challenges posed by the unpredictable navigation environment encountered by ships carrying such storage tanks during maritime transport, as mentioned in the background art. Ships inevitably face various marine weather conditions, especially strong winds and giant waves. These severe sea conditions cause the hull to experience violent, multi-dimensional rocking, turbulence, and undulation. Under such continuous and complex dynamic loads, the originally robust inner floating roof fixing device will bear enormous stress. This repeated and intense mechanical impact and vibration can easily have a cumulative effect on the floating roof's fixing points, leading to the problem of easy leakage and volatilization of oil and gas inside the storage tank. To achieve the above objectives, the present invention provides the following technical solution: a double-sealed floating roof with annular edge reinforcement, comprising a storage tank, an annular groove inside the storage tank, a sealing cover movably inserted into the upper side of the storage tank, a circular groove in the middle of the inner wall of the sealing cover, an O-shaped groove in the lower side of the side of the sealing cover, a sealing ring fixedly fitted to the side of the O-shaped groove, the side of the sealing ring contacting the side of the annular groove, an opening mechanism for squeezing the sealing ring rotatably connected to the side of the inner wall of the circular groove, a rotating groove in the top of the sealing cover, and a sealing mechanism for limiting the position of the sealing cover rotatably connected to the middle of the rotating groove.

[0006] Preferably, the opening mechanism includes a rotating disk rotatably connected inside a circular groove. The upper side of the rotating disk has six arc-shaped grooves, and the bottom of the inner wall of the circular groove has six long grooves. Each of the six long grooves has an L-shaped rod slidably connected inside. The horizontal bar of each L-shaped rod extends to the outside of the sealing cap. Each of the six L-shaped rods corresponds one-to-one with one of the six arc-shaped grooves, and the side of the vertical bar of the L-shaped rod slides into the interior of the arc-shaped groove. By rotating the arc-shaped grooves, the rotating disk drives the six L-shaped rods to open outwards simultaneously, causing the horizontal bar of the L-shaped rod to press against the side of the sealing ring, moving the sealing ring into the interior of the annular groove, thereby sealing the storage tank.

[0007] Preferably, the sealing mechanism includes a connecting block, which is fixed in the middle of the top surface of the rotating disk. A sealing plate is fixedly connected to the top of the connecting block. The side of the sealing plate rotates and engages with the inside of the rotating groove. Four abutment grooves are provided on the side of the sealing plate. When the Chinese character block moves to contact the inside of the abutment groove, the fixing state of the Chinese character block to the Z-shaped strip can be released.

[0008] Preferably, an annular frame is fixedly sleeved on the outer side of the sealing cover. Four Chinese character-shaped grooves are opened on the side of the inner wall of the annular frame. Four Chinese character-shaped blocks are slidably arranged inside the four Chinese character-shaped grooves. A first compression spring is fixedly connected to the side of the horizontal block of the Chinese character-shaped block. One end of the first compression spring is fixedly connected to the inside of the horizontal groove of the Chinese character-shaped groove. By rotating the sealing plate, the side of the sealing plate contacts the side of the Chinese character-shaped block, so that the horizontal block of the Chinese character-shaped block can squeeze the side of the Z-shaped strip.

[0009] Preferably, the vertical cross-section of the annular frame is T-shaped, and four Z-shaped grooves are provided on the outer side of the annular frame. Z-shaped strips are slidably arranged inside the four Z-shaped grooves. A second compression spring is fixedly connected to the side of the vertical strip of the Z-shaped strip. One end of the second compression spring is fixedly connected to the side of the vertical groove of the Z-shaped groove. When the Z-shaped strip is released from contact with the side of the groove, the fixing between the sealing cover and the storage tank can be released.

[0010] Preferably, the side of the upper vertical strip of the Z-shaped strip abuts against the side of the vertical block of the Chinese character block, the side of the vertical block on the opposite side of the four Chinese character blocks slides in cooperation with the side of the sealing plate and the side of the contact groove, and the opposite side of the horizontal block of the four Chinese character blocks is rounded. The friction generated when the side of the horizontal block of the Chinese character block with rounded corners abuts against the side of the contact groove is small.

[0011] Preferably, the top of the storage tank is provided with a slot that matches the lower side of the annular frame. Inside the slot, there are four slots that match the lower horizontal bar of the Z-shaped strip. When the lower horizontal bar of the Z-shaped strip moves into the slot, it is convenient to fix the sealing cap to the upper side of the storage tank.

[0012] Preferably, the top of the sealing plate has a groove, and a connecting strip is fixedly connected to the upper side of the inner wall of the groove, so that the sealing plate can be rotated easily through the connecting strip.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] In this invention, by moving the sealing cap to the upper side of the storage tank and causing the sealing cap to move the sealing ring to the side of the O-ring groove, the sealing plate drives the rotating disk to rotate, causing the arc groove to rotate. The long groove limits the L-shaped rod, causing the arc groove to drive the six L-shaped rods to open outward simultaneously, so that the crossbar of the L-shaped rod squeezes the sealing ring, thus moving the sealing ring into the O-ring groove and quickly sealing the storage tank, reducing the possibility of oil and gas volatilization inside the storage tank.

[0015] In this invention, by moving the annular frame into the slot, when the sealing plate rotates the contact groove, the horizontal block of the Chinese character-shaped block contacts the side of the sealing plate, pressing the four Chinese character-shaped blocks outward and compressing the first compression spring. At the same time, the horizontal block of the Chinese character-shaped block abuts against the upper horizontal bar of the Z-shaped strip and compresses the second compression spring, causing the four Z-shaped strips to open outward simultaneously. At this time, the lower horizontal bar of the Z-shaped strip moves into the slot through the annular frame, thereby fixing the sealing cover onto the storage tank, further enhancing the sealing effect of the storage tank.

[0016] In this invention, by rotating the annular frame, the abutment groove on its lower side moves to contact the side of the Chinese character-shaped block. At this time, the four Chinese character-shaped blocks close inward through the first compression spring, releasing the contact with the Z-shaped strip. At the same time, the horizontal bar on the lower side of the Z-shaped strip moves out of the slot through the second compression spring, quickly releasing the fixation between the sealing cap and the storage tank, so that the oil inside the storage tank can be quickly taken out. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural development view of the storage tank of the present invention;

[0019] Figure 3 This is a three-dimensional structural unfolded view of the sealing cap of the present invention;

[0020] Figure 4 This is a partial three-dimensional structural development view of the sealing cap of the present invention;

[0021] Figure 5 This is a partial three-dimensional cross-sectional view of the opening mechanism of the present invention;

[0022] Figure 6 This is a three-dimensional cross-sectional view of the sealing cap of the present invention;

[0023] Figure 7 This is a partial three-dimensional structural diagram of the Chinese character-shaped block of the present invention;

[0024] Figure 8 This is a partial three-dimensional structural diagram of the Z-shaped strip of the present invention.

[0025] In the diagram: 1. Storage tank; 101. Slot; 102. Slot; 2. Annular groove; 3. Sealing cover; 301. Annular frame; 302. Chinese character-shaped groove; 303. Chinese character-shaped block; 304. First compression spring; 305. Second compression spring; 306. Z-shaped strip; 307. Z-shaped groove; 4. Circular groove; 5. Opening mechanism; 501. Rotating disk; 502. Arc-shaped groove; 503. L-shaped rod; 504. Long groove; 6. Rotating groove; 7. Sealing mechanism; 701. Connecting block; 702. Sealing plate; 703. Contact groove; 704. Groove; 705. Connecting strip; 8. O-ring; 9. Sealing ring. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figures 1 to 8 The present invention provides a technical solution: a double-sealed floating roof with annular edge reinforcement, comprising a storage tank 1, an annular groove 2 inside the storage tank 1, a sealing cover 3 movably inserted into the upper side of the storage tank 1, a circular groove 4 in the middle of the inner wall of the sealing cover 3, an O-shaped groove 8 on the lower side of the side of the sealing cover 3, a sealing ring 9 fixedly sleeved on the side of the O-shaped groove 8, the side of the sealing ring 9 contacting the side of the annular groove 2, an opening mechanism 5 for squeezing the sealing ring 9 rotatably connected to the side of the inner wall of the circular groove 4, a rotating groove 6 on the top of the sealing cover 3, and a sealing mechanism 7 for limiting the sealing cover 3 rotatably connected to the middle of the rotating groove 6.

[0028] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 8As shown, the opening mechanism 5 includes a rotating disk 501, which is rotatably connected to the inside of the circular groove 4. Six arc-shaped grooves 502 are provided on the upper side of the rotating disk 501, and six long grooves 504 are provided on the bottom of the inner wall of the circular groove 4. L-shaped rods 503 are slidably connected inside the six long grooves 504. The horizontal bar of the L-shaped rod 503 extends to the outside of the sealing cover 3. The six L-shaped rods 503 correspond one-to-one with the six arc-shaped grooves 502, and the side of the vertical bar of the L-shaped rod 503 slides in cooperation with the inside of the arc-shaped groove 502. The rotating disk 501 drives the arc-shaped groove 502 to rotate, and the long grooves 504 limit the L-shaped rods 503, so that the six L-shaped rods 503 can be driven to open outward at the same time, so that the horizontal bar of the L-shaped rod 503 squeezes and abuts against the side of the sealing ring 9, so that the sealing ring 9 moves into the inside of the annular groove 2, thereby sealing the storage tank 1.

[0029] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 8 As shown, the sealing mechanism 7 includes a connecting block 701, which is fixed in the middle of the top surface of the rotating disk 501. A sealing plate 702 is fixedly connected to the top of the connecting block 701. The side of the sealing plate 702 rotates and engages with the inside of the rotating groove 6. Four abutting grooves 703 are provided on the side of the sealing plate 702. When the Chinese character block 303 moves to contact the inside of the abutting groove 703, the fixing state of the Chinese character block 303 to the Z-shaped strip 306 can be released.

[0030] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 8 As shown, an annular frame 301 is fixedly sleeved on the outer side of the sealing cover 3. Four Chinese character-shaped grooves 302 are opened on the side of the inner wall of the annular frame 301. Four Chinese character-shaped blocks 303 are slidably arranged inside the four Chinese character-shaped grooves 302. A first compression spring 304 is fixedly connected to the side of the horizontal block of the Chinese character-shaped block 303. One end of the first compression spring 304 is fixedly connected to the inside of the horizontal groove of the Chinese character-shaped groove 302. By rotating the sealing plate 702, the side of the sealing plate 702 contacts the side of the Chinese character-shaped block 303, so that the horizontal block of the Chinese character-shaped block 303 can squeeze the side of the Z-shaped strip 306.

[0031] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 8As shown, the vertical cross-section of the annular frame 301 is T-shaped, and four Z-shaped grooves 307 are provided on the outer side of the annular frame 301. Z-shaped strips 306 are slidably arranged inside the four Z-shaped grooves 307. A second compression spring 305 is fixedly connected to the side of the vertical strip of the Z-shaped strip 306. One end of the second compression spring 305 is fixedly connected to the side of the vertical groove of the Z-shaped groove 307. When the Z-shaped strip 306 is released from contact with the side of the slot 101, the fixing between the sealing cover 3 and the storage tank 1 can be released.

[0032] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 8 As shown, the side of the upper vertical strip of the Z-shaped strip 306 abuts against the side of the vertical block of the Chinese character block 303. The sides of the vertical blocks on opposite sides of the four Chinese character blocks 303 slide against the sides of the sealing plate 702 and the contact groove 703, respectively. The opposite sides of the horizontal blocks of the four Chinese character blocks 303 are all rounded. The friction generated when the side of the horizontal block of the Chinese character block 303 with rounded corners abuts against the side of the contact groove 703 is small.

[0033] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 8 As shown, the top of the storage tank 1 is provided with a slot 101 that matches the lower side of the annular frame 301. Inside the slot 101, there are four slots 102 that match the lower horizontal bar of the Z-shaped strip 306. When the lower horizontal bar of the Z-shaped strip 306 moves into the slot 102, it is convenient to fix the sealing cover 3 on the upper side of the storage tank 1, so that the storage tank 1 can be sealed by the sealing cover 3.

[0034] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 8 As shown, a groove 704 is provided on the top of the sealing plate 702, and a connecting strip 705 is fixedly connected to the upper side of the inner wall of the groove 704. The connecting strip 705 facilitates the rotation of the sealing plate 702, so that the sealing plate 702 can drive the abutment groove 703 on its lower side to rotate, which facilitates the quick fixing or disassembly of the sealing cover 3 and the storage tank 1.

[0035] The method of use and advantages of this invention: The working process of this annular edge-reinforced double-sealed floating roof during operation and use is as follows:

[0036] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown in the figure, firstly, the sealing cover 3 is moved to the upper side of the storage tank 1, and the sealing cover 3 drives the sealing ring 9 on its side to move to the side of the O-ring groove 8. The sealing plate 702 and the connecting block 701 drive the rotating disk 501 to rotate, and the arc groove 502 rotates. At the same time, the long groove 504 limits the L-shaped rod 503, so that when the arc groove 502 rotates, it drives the six L-shaped rods 503 to open outward at the same time, so that the crossbar of the L-shaped rod 503 squeezes the sealing ring 9, thereby moving the sealing ring 9 into the interior of the O-ring groove 8, and thus quickly sealing the storage tank 1, reducing the possibility of oil and gas volatilization inside the storage tank 1.

[0037] By moving the annular frame 301 into the slot 101, when the sealing plate 702 rotates, it drives the abutment groove 703 on its side to rotate, so that the side inside the abutment groove 703 contacts the side of the horizontal block of the Chinese character block 303 and moves to contact the side of the sealing plate 702, thereby pressing the four Chinese character blocks 303 outward and compressing the first compression spring 304. At the same time, the horizontal block of the Chinese character block 303 abuts the upper horizontal bar of the Z-shaped strip 306 and compresses the second compression spring 305, causing the four Z-shaped strips 306 to open outward at the same time. At this time, the lower horizontal bar of the Z-shaped strip 306 moves into the slot 102 through the annular frame 301, thereby quickly fixing the sealing cover 3 on the upper side of the storage tank 1, further increasing the sealing effect of the storage tank 1.

[0038] By rotating the annular frame 301, the abutment groove 703 on its lower side moves to contact the side of the Chinese character-shaped block 303. At this time, the four Chinese character-shaped blocks 303 close inward by the rebound force of the first compression spring 304, releasing the abutment state of the Z-shaped strip 306. At the same time, the horizontal bar on the lower side of the Z-shaped strip 306 moves out from the inside of the slot 102 by the rebound force of the second compression spring 305, thereby quickly releasing the fixed state between the sealing cover 3 and the storage tank 1, so that the oil inside the storage tank 1 can be quickly taken out.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-sealed floating roof with reinforced annular edge, comprising a storage tank (1), characterized in that: The storage tank (1) has an annular groove (2) inside. A sealing cover (3) is movably inserted into the upper side of the storage tank (1). A circular groove (4) is opened in the middle of the inner wall of the sealing cover (3). An O-shaped groove (8) is opened on the lower side of the side of the sealing cover (3). A sealing ring (9) is fixedly sleeved on the side of the O-shaped groove (8). The side of the sealing ring (9) contacts the side of the annular groove (2). An opening mechanism (5) for squeezing the sealing ring (9) is rotatably connected to the side of the inner wall of the circular groove (4). A rotating groove (6) is opened at the top of the sealing cover (3). A sealing mechanism (7) for limiting the sealing cover (3) is rotatably connected in the middle of the rotating groove (6).

2. The annular edge-reinforced double-sealed floating roof according to claim 1, characterized in that: The opening mechanism (5) includes a rotating disk (501), which is rotatably connected to the inside of the circular groove (4). The upper side of the rotating disk (501) is provided with six arc-shaped grooves (502), and the bottom of the inner wall of the circular groove (4) is provided with six long grooves (504). The interior of each of the six long grooves (504) is slidably connected with an L-shaped rod (503). The horizontal bar of the L-shaped rod (503) extends to the outside of the sealing cover (3). The six L-shaped rods (503) correspond one-to-one with the six arc-shaped grooves (502), and the side of the vertical bar of the L-shaped rod (503) slides in cooperation with the interior of the arc-shaped groove (502).

3. The annular edge-reinforced double-sealed floating roof according to claim 1, characterized in that: The sealing mechanism (7) includes a connecting block (701), which is fixed in the middle of the top surface of the rotating disk (501). A sealing plate (702) is fixedly connected to the top of the connecting block (701). The side of the sealing plate (702) rotates with the inside of the rotating groove (6). Four abutment grooves (703) are provided on the side of the sealing plate (702).

4. The annular edge-reinforced double-sealed floating roof according to claim 3, characterized in that: An annular frame (301) is fixedly sleeved on the outer side of the sealing cover (3). Four Chinese character-shaped grooves (302) are provided on the side of the inner wall of the annular frame (301). Four Chinese character-shaped blocks (303) are slidably arranged inside the four Chinese character-shaped grooves (302). A first compression spring (304) is fixedly connected to the side of the horizontal block of the Chinese character-shaped block (303). One end of the first compression spring (304) is fixedly connected to the inside of the horizontal groove of the Chinese character-shaped groove (302).

5. The annular edge-reinforced double-sealed floating roof according to claim 4, characterized in that: The vertical cross-section of the annular frame (301) is T-shaped, and four Z-shaped grooves (307) are provided on the outer side of the annular frame (301). A Z-shaped strip (306) is slidably arranged inside the four Z-shaped grooves (307). A second compression spring (305) is fixedly connected to the side of the vertical strip of the Z-shaped strip (306). One end of the second compression spring (305) is fixedly connected to the side of the vertical groove of the Z-shaped groove (307).

6. The annular edge-reinforced double-sealed floating roof according to claim 5, characterized in that: The side of the upper vertical strip of the Z-shaped strip (306) abuts against the side of the vertical block of the Chinese character block (303). The sides of the vertical blocks on opposite sides of the four Chinese character blocks (303) slide in cooperation with the sides of the sealing plate (702) and the contact groove (703), and the opposite sides of the horizontal blocks of the four Chinese character blocks (303) are all rounded.

7. The annular edge-reinforced double-sealed floating roof according to claim 5, characterized in that: The top of the storage tank (1) is provided with a slot (101) that matches the lower side of the annular frame (301), and the inside of the slot (101) is provided with four slots (102) that match the lower horizontal bar of the Z-shaped strip (306).

8. The annular edge-reinforced double-sealed floating roof according to claim 6, characterized in that: The top of the sealing plate (702) is provided with a groove (704), and a connecting strip (705) is fixedly connected to the upper side of the inner wall of the groove (704).

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