An air bag type inner floating roof tank edge sealing device

Abstract

The application discloses an edge sealing device for an internal floating roof tank with an air bag, which comprises a tank, a floating roof, an edge plate, an air bag, a pressure sensor and a processor. The tank is internally provided with the floating roof, the outer side of the floating roof is provided with the edge plate, the edge plate and the inner wall of the tank are provided with the air bag, the inner wall of the air bag is provided with the pressure sensor and the processor, the pressure sensor and the processor are electrically connected, and the processor is in wireless communication with a user terminal. The pressure sensor can monitor the pressure in the air bag, transmit pressure data to the user terminal, and remind workers to take timely measures when the pressure data in the air bag exceeds the normal range, so that the pressure in the air bag is within a safe range, and safety accidents are avoided.

Description

Technical Field

[0001] This invention belongs to the field of tank sealing technology, specifically relating to an edge sealing device for an inflatable bladder-type internal floating roof tank. Background Technology

[0002] An internal floating roof tank is a common type of liquid storage device. It has an internal floating roof that rises and falls with changes in the liquid level inside the tank. The advantages of an internal floating roof tank include reduced contact between air and liquid inside the tank, thus reducing the possibility of oxidation and corrosion, and also reducing the amount of volatiles released into the tank.

[0003] Patent CN115676155A discloses an edge sealing device for an inflatable bladder-type internal floating roof tank, comprising an inflatable bladder, a sealing outer band, compartment plates, and bidirectional balance valves. The inflatable bladder is placed inside the sealing outer band, which is bolted to the internal floating roof via an edge plate. Multiple compartment plates are installed inside the inflatable bladder, dividing it into multiple airtight compartments. Multiple bidirectional balance valves are installed on the inflatable bladder, each corresponding to one of the airtight compartments. A central pressure balance airbag is placed on the internal floating roof, and multiple gas balance passages are provided between the central pressure balance airbag and the inflatable bladder, each corresponding to one of the airtight compartments. This invention can effectively avoid the flash explosion safety hazard caused by oil entering the sponge body after the outer sealing band of a traditional sponge-type tank breaks, reducing the difficulty of inspection and maintenance and improving the safety of inspection and maintenance.

[0004] However, the above-mentioned patent has the following shortcomings in actual use: because the air pressure inside the airbag is not monitored, too low air pressure can easily lead to poor sealing of the airbag, resulting in oil and gas leakage, and too high air pressure can easily lead to airbag explosion, causing safety hazards. Summary of the Invention

[0005] Therefore, the present invention aims to solve the problems in the prior art where the air pressure inside the inflatable bladder is not monitored, and low air pressure can easily lead to poor sealing of the bladder, resulting in oil and gas leakage, while excessive air pressure can easily lead to bladder explosion, causing safety hazards.

[0006] Therefore, the technical solution adopted is an inflatable bladder-type internal floating roof tank edge sealing device of the present invention, characterized in that it includes: a tank, a floating roof, an edge plate, an inflatable bladder, a pressure sensor and a processor. The floating roof is provided inside the tank, and the edge plate is provided outside the floating roof. An inflatable bladder is provided between the edge plate and the inner wall of the tank. The pressure sensor and the processor are provided on the inner wall of the inflatable bladder. The pressure sensor and the processor are electrically connected, and the processor communicates wirelessly with the user terminal.

[0007] Preferably, the inflatable bladder is connected to the edge plate by bolts.

[0008] Preferably, the inflatable bladder is an annular bladder, and multiple partitions are evenly spaced along the circumference inside the bladder, forming an airtight compartment between adjacent partitions.

[0009] Preferably, each airtight compartment is equipped with a corresponding air pressure balancing valve.

[0010] Preferably, the floating platform is equipped with a central pressure balancing airbag, which is connected to each airtight compartment through multiple gas passages.

[0011] Preferably, it also includes a sealing device, which comprises: a sealing cover, a boss, a support arm, and a power box. A sealing cover is provided at the top of the tank, and a boss is provided at the bottom of the sealing cover. The boss is installed inside the top of the tank, and a sealing ring is provided on the side wall of the boss. The top of the sealing cover is connected to the lower end of the support arm. A power box is provided on the side of the tank, and two first fixing blocks are spaced apart inside the power box. The first fixing blocks are connected to the inner wall of the power box and are on the same horizontal plane. One end of a swing arm is hinged to a first fixing block, and the other end of the swing arm is connected to a sliding groove. The two swing arms are parallel, and a horizontal connecting rod is provided between the two swing arms. Two swing arms are hinged at each end. A second fixed block is set on the left side of the first fixed block. The second fixed block is connected to the inner wall of the power box. The bottom end of the cylinder is hinged to the second fixed block. The piston rod of the cylinder is hinged to the swing arm on the left side. One end of the slide rod is slidably connected to the slide groove. A vertical moving plate is set inside the power box. The other end of the slide rod is hinged to the lower end of the moving plate. A slide column is set at the upper end of the moving plate. A slide groove is set on the outer wall of the power box. The slide groove is composed of a vertical slide groove, an oblique slide groove and a horizontal slide groove connected in sequence. One end of the slide column is vertically connected to the upper end of the moving plate. The other end of the slide column passes through the slide groove and is connected to the upper end of the support arm. The slide column can slide back and forth in the slide groove.

[0012] The technical solution of this invention has the following advantages:

[0013] 1. An inflatable bladder-type internal floating roof tank edge sealing device of the present invention includes: a tank, a floating roof, an edge plate, an inflatable bladder, a pressure sensor, and a processor. The floating roof is disposed inside the tank, and an edge plate is disposed outside the floating roof. An inflatable bladder is disposed between the edge plate and the inner wall of the tank. A pressure sensor and a processor are disposed on the inner wall of the inflatable bladder. The pressure sensor and the processor are electrically connected, and the processor communicates wirelessly with a user terminal. The pressure sensor monitors the pressure inside the inflatable bladder and transmits the pressure data to the user terminal. When the pressure data inside the inflatable bladder exceeds the normal range, it will alert personnel to take timely measures to ensure that the pressure inside the inflatable bladder is within a safe range, thus avoiding safety accidents.

[0014] 2. The sealing device in this invention ensures that the sealing cover is always in a horizontal state when it is opened or closed, which allows the protrusion to fit better with the inner wall of the top of the storage tank, improving the sealing performance. After opening, the sealing cover can be moved away from the top of the storage tank, making it easier for personnel to maintain the airbag and other sealing structures above the storage tank, avoiding obstruction by the sealing cover and affecting personnel maintenance, and making maintenance safer.

[0015] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0016] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a top view of the present invention;

[0020] Figure 3 This is a schematic diagram of the sealing device in this invention;

[0021] Figure 4 This is a schematic diagram of the slide groove in this invention;

[0022] Figure 5 This is a schematic diagram of the internal structure of the power box in this invention;

[0023] Figure 6 This is a diagram showing the open state of the sealing device in this invention.

[0024] Among them, 1-storage tank, 2-floating roof, 3-edge plate, 4-inflatable bladder, 5-pressure sensor, 6-processor, 7-bolt, 8-partition plate, 9-airtight compartment, 10-pressure balance valve, 11-central pressure balance airbag, 12-sealing cover, 13-protrusion, 14-support arm, 15-power box, 16-first fixed block, 17-swing rod, 18-slide body, 19-connecting rod, 20-slide rod, 21-moving plate, 22-slide column, 23-slide groove, 24-second fixed block, 25-cylinder, 26-piston rod, 231-vertical slide groove, 232-slanted slide groove, 233-horizontal slide groove. Detailed Implementation

[0025] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0026] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly or indirectly attached to that other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to that other component.

[0027] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] This invention provides an edge sealing device for an inflatable bladder-type internal floating roof tank, such as... Figure 1-2 As shown, it includes: a storage tank 1, a floating roof 2, an edge plate 3, an inflatable bladder 4, a pressure sensor 5, and a processor 6. The floating roof 2 is installed inside the storage tank 1, and the edge plate 3 is installed on the outside of the floating roof 2. The inflatable bladder 4 is installed between the edge plate 3 and the inner wall of the storage tank 1. The pressure sensor 5 and the processor 6 are installed on the inner wall of the inflatable bladder 4. The pressure sensor 5 and the processor 6 are electrically connected. The processor 6 communicates wirelessly with a user terminal, which is a mobile phone or tablet.

[0030] The working principle and beneficial technical effects of the above technical solution are as follows: the airbag 4 is inflated, and the airbag 4 expands and fits tightly against the inner wall and edge plate 3 of the storage tank 1, thus sealing the storage tank 1. The pressure sensor 5 can monitor the pressure inside the airbag 4 and transmit the pressure data to the user terminal. When the pressure data inside the airbag exceeds the normal range, it will remind the staff to take timely measures so that the pressure inside the airbag is within a safe range and to avoid safety accidents.

[0031] In one embodiment, such as Figure 1-2As shown, the inflatable bladder 4 is connected to the edge plate 3 by bolts 7, facilitating the installation and disassembly of the inflatable bladder 4. The inflatable bladder 4 is an annular airbag, with multiple partitions 8 evenly spaced circumferentially inside. Adjacent partitions 8 form airtight compartments 9, and each airtight compartment 9 is equipped with a corresponding pressure balancing valve 10. The pressure balancing valve 10 is used to inflate the airtight compartment 9 and to release pressure when the internal pressure of the airtight compartment 9 increases, ensuring the pressure balance of the inflatable bladder 4. A central pressure balancing airbag 11 is provided on the floating roof 2. The central pressure balancing airbag 11 is connected to each airtight compartment 9 through multiple gas passages. The central pressure balancing airbag delivers or draws in gas through the gas passages to ensure that the pressure of the inflatable bladder remains within the normal working pressure range during ascent or descent. When passing through narrow passages, the central pressure balancing airbag draws in gas from the inflatable bladder 4; when passing through wide passages of the storage tank, the central pressure balancing airbag inputs gas into the inflatable bladder 4.

[0032] In one implementation, such as Figure 3-6 As shown, it also includes a sealing device, which includes a sealing cover 12, a boss 13, a support arm 14, and a power box 15. The top of the storage tank 1 is provided with a sealing cover 12, and the bottom of the sealing cover 12 is provided with a boss 13. The boss 13 is installed inside the top of the storage tank 1, and a sealing ring is provided on the side wall of the boss 13. The top of the sealing cover 12 is connected to the lower end of the support arm 14. The side of the storage tank 1 is provided with a power box 15. Two first fixing blocks 16 are arranged at intervals inside the power box 15. The first fixing blocks 16 are connected to the inner wall of the power box 15 and are on the same horizontal plane. One end of the swing rod 17 is hinged to the first fixing block 16, and the other end of the swing rod 17 is connected to the slide body 18. The two swing rods 17 are parallel, and a horizontal connecting rod 19 is provided between the two swing rods 17. The two ends of the connecting rod 19 are respectively connected to two swing rods. The rod 17 is hinged, and a second fixing block 24 is provided on the left side of the first fixing block 16. The second fixing block 24 is connected to the inner wall of the power box 15. The bottom end of the cylinder 25 is hinged to the second fixing block 24. The piston rod 26 of the cylinder 25 is hinged to the left swing rod 17. One end of the sliding rod 20 is slidably connected to the slide groove body 18. A vertical moving plate 21 is provided inside the power box 15. The other end of the sliding rod 20 is hinged to the lower end of the moving plate 21. A sliding column 22 is provided at the upper end of the moving plate 21. A slide groove 23 is provided on the outer wall of the power box 15. The slide groove 23 is composed of a vertical slide groove 231, an inclined slide groove 232, and a horizontal slide groove 233 connected in sequence. One end of the sliding column 22 is vertically connected to the upper end of the moving plate 21. The other end of the sliding column 22 passes through the slide groove 23 and is connected to the upper end of the support arm 14. The sliding column 22 can slide back and forth in the slide groove 23.

[0033] The working principle and beneficial technical effects of the above technical solution: When the airbag 4 is damaged, it will lead to oil evaporation and leakage. At this time, the cylinder 25 is started, and the piston rod 26 drives the swing rod 17 and the slide body 18 to swing. The slide body 18 slides relative to the slide rod 20 and swings back and forth with the swing rod 17, which drives the moving plate 21 to move horizontally. The moving plate 21 can slide back and forth along the trajectory of the slide 23, which in turn drives the sealing cover 12 to move horizontally to the left, then horizontally to the lower left, and then vertically downward, so that the sealing cover 12 seals the top of the storage tank 1. Since the sealing cover 12 is always in a horizontal state when it is opened or closed, it can make the boss 13 fit better with the inner wall of the top of the storage tank 1, improving the sealing performance. After opening, the sealing cover 12 can be away from the top of the storage tank 1, which makes it easier for personnel to repair the airbag and other sealing structures above the storage tank 1, avoiding the obstruction of the sealing cover 12 and affecting personnel maintenance. It is also safer during maintenance.

[0034] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. An edge sealing device for an inflatable bladder-type internal floating roof storage tank, characterized in that, include: The tank (1), floating roof (2), edge plate (3), air bladder (4), pressure sensor (5) and processor (6) are provided inside the tank (1). An edge plate (3) is provided on the outside of the floating roof (2). An air bladder (4) is provided between the edge plate (3) and the inner wall of the tank (1). A pressure sensor (5) and processor (6) are provided on the inner wall of the air bladder (4). The pressure sensor (5) and processor (6) are electrically connected. The processor (6) communicates wirelessly with the user terminal. It also includes a sealing device, which includes: a sealing cover (12), a boss (13), a support arm (14), and a power box (15). The top of the storage tank (1) is provided with a sealing cover (12), and the bottom of the sealing cover (12) is provided with a boss (13). The boss (13) is installed inside the top of the storage tank (1). A sealing ring is provided on the side wall of the boss (13). The top of the sealing cover (12) is connected to the lower end of the support arm (14). The side of the storage tank (1) is provided with a power box (15). (15) Two first fixing blocks (16) are arranged at an internal interval. The first fixing blocks (16) are connected to the inner wall of the power box (15). The two first fixing blocks (16) are on the same horizontal plane. One end of the swing rod (17) is hinged to the first fixing block (16), and the other end of the swing rod (17) is connected to the slide body (18). The two swing rods (17) are parallel to each other. A horizontal connecting rod (19) is arranged between the two swing rods (17). The two ends of the connecting rod (19) are respectively connected to the two swing rods (17). The first fixing block (16) is hinged to the second fixing block (24) on the left side. The second fixing block (24) is connected to the inner wall of the power box (15). The bottom end of the cylinder (25) is hinged to the second fixing block (24). The piston rod (26) of the cylinder (25) is hinged to the left swing rod (17). One end of the slide rod (20) is slidably connected to the slide groove body (18). A vertical moving plate (21) is provided inside the power box (15). The other end of the slide rod (20) is connected to the moving plate (21). The lower end is hinged, and the upper end of the movable plate (21) is provided with a sliding column (22). The outer wall of the power box (15) is provided with a sliding groove (23). The sliding groove (23) is composed of a vertical sliding groove (231), an inclined sliding groove (232) and a horizontal sliding groove (233) connected in sequence. One end of the sliding column (22) is vertically connected to the upper end of the movable plate (21), and the other end of the sliding column (22) passes through the sliding groove (23) and is connected to the upper end of the support arm (14). The sliding column (22) can slide back and forth in the sliding groove (23).

2. The edge sealing device for an inflatable bladder-type internal floating roof tank according to claim 1, characterized in that, The airbag (4) is connected to the edge plate (3) by bolts (7).

3. The edge sealing device for an inflatable bladder-type internal floating roof tank according to claim 1, characterized in that, The airbag (4) is an annular airbag. Multiple partitions (8) are evenly spaced along the circumference inside the airbag (4), and airtight compartments (9) are formed between adjacent partitions (8).

4. The edge sealing device for an inflatable bladder-type internal floating roof tank according to claim 3, characterized in that, Each airtight compartment (9) is equipped with a corresponding air pressure balancing valve (10).

5. The edge sealing device for an inflatable bladder-type internal floating roof tank according to claim 3, characterized in that, A central pressure balancing airbag (11) is installed on the floating platform (2), and the central pressure balancing airbag (11) is connected to each airtight compartment (9) through multiple gas passages.

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