Normal-pressure storage tank leaking stoppage device

Abstract

The utility model relates to the technical field of leaking stoppage, and particularly discloses a normal pressure storage tank leaking stoppage device which comprises a tank body, an arc-shaped plate is arranged on the circumferential face of the outer side of the tank body, and a first air bag is fixedly installed on the circumferential face of the inner side of the arc-shaped plate. A screw rod is rotationally mounted in the arc-shaped plate, and the two ends of the screw rod are located on the outer side of the arc-shaped plate; a plurality of rotating plates are rotatably mounted at the left end of the screw rod, a ventilation pipe is slidably mounted in the screw rod, a ventilation column is fixedly mounted at the left end of the ventilation pipe, and a threaded drill bit is fixedly mounted at the left end of the ventilation column; and a second air bag is arranged between the ventilation column and the rotating plate. Compared with a traditional single-weight plugging device in the market, the outer side of the tank body can be plugged under the action of the first air bag, the inner side of the tank body can be plugged under the action of the second air bag, double plugging is achieved, and therefore the plugging efficiency of the device is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of leak plugging, in particular to a leak plugging device for a normal pressure storage tank. Background Art

[0002] Atmospheric pressure storage tanks refer to steel welded storage tanks with a design pressure of less than or equal to 1 / 3 of atmospheric pressure, built on the ground, and storing non-artificially refrigerated, non-toxic liquid media such as petroleum and chemicals. Storage tanks are widely used storage equipment in petrochemical production. In the oil refining industry, they are used to store various raw oils, semi-finished oils, finished oils, aromatic products and liquefied gas, etc. Atmospheric pressure storage tanks usually have a pipe directly connected to the atmosphere to always keep the operating pressure in the tank no more than the design pressure.

[0003] During the use of storage tanks, it is inevitable that they will be hit by external equipment, which may make the storage tanks prone to rupture, causing the crude oil or other liquids inside to leak. In order to prevent such situations from occurring, it is necessary to seal the ruptured position of the storage tank to protect the raw materials inside the storage tank and prevent site pollution and waste of materials.

[0004] However, most of the sealing devices on the market are single-seal, resulting in poor plugging effect. For example, a Chinese patent (publication number: CN113479504A) discloses a plugging device for transporting hazardous chemicals. The plugging device is provided with a hinge assembly, a rubber part, a sealing cover, and an adsorption mechanism, so that the device can be directly adsorbed on the damaged part of the surface of the transport device. The hinge assembly can adapt to fit the curved surface of the transport device, and cooperate with the rubber part and the sealing cover to make the sealing effect better, quicker and more practical. However, the above technical solution is a single-seal structure when sealing the leak point. Due to the single-seal structure, its plugging effect is poor.

[0005] Secondly, after the atmospheric pressure storage tank is split, its surface is mostly a crack. When performing double-sided sealing, it is necessary to open a hole in the tank so that the sealing equipment can enter the interior of the tank. However, most of the double sealing equipment on the market requires the use of external equipment to perform the hole opening operation, and when using external equipment, it is necessary to pull the wires to perform the operation, so it is more inconvenient. Summary of the invention

[0006] The purpose of the utility model is to provide a leak-proof device for atmospheric pressure storage tanks. Compared with the traditional single-sealing device on the market, the utility model can seal the outer side of the tank body under the action of the first airbag, and can seal the inner side of the tank body under the action of the second airbag, thereby realizing double sealing, thereby effectively improving the sealing efficiency of the device to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the utility model provides the following technical solutions: a leak plugging device for a normal pressure storage tank, comprising a tank body, an arc plate is arranged on the outer circumferential surface of the tank body, and a first air bag is fixedly installed on the inner circumferential surface of the arc plate;

[0008] A screw is rotatably mounted inside the arc-shaped plate, and two ends of the screw are located outside the arc-shaped plate;

[0009] A plurality of rotating plates are rotatably mounted on the left end of the screw rod, a ventilation pipe is slidably mounted inside the screw rod, a ventilation column is fixedly mounted on the left end of the ventilation pipe, and a threaded drill bit is fixedly mounted on the left end of the ventilation column;

[0010] A second air bag is arranged between the ventilation column and the rotating plate.

[0011] Preferably, an arc-shaped groove is formed on the inner circumferential surface of the arc-shaped plate, and the first airbag is fixedly installed inside the arc-shaped groove.

[0012] Preferably, a threaded cavity column is fixedly mounted on the outer circumferential surface of the arc-shaped plate, and the threaded cavity column is connected to the threaded hole at the center of the arc-shaped plate.

[0013] Preferably, a threaded head is rotatably mounted on the inner right end of the screw, a plurality of U-shaped grooves are evenly opened on the left end of the screw, and one end of the rotating plate is rotatably mounted inside the U-shaped groove.

[0014] Preferably, two sliding grooves are provided on the inner circumferential surface of the screw.

[0015] Preferably, a U-shaped push rod is fixedly mounted on the outer circumferential surface of the ventilation pipe, the right end of the U-shaped push rod is located outside the threaded cavity column, and the U-shaped push rod is slidably mounted inside the slide groove.

[0016] Preferably, a symmetrically designed arc-shaped air outlet is provided at the right end of the ventilation column, and the right end of the ventilation column is fixedly connected to the left end of the second airbag.

[0017] Preferably, vertical poles are fixedly mounted on both ends of the arc-shaped plate, and suction cups are fixedly mounted on both ends of the vertical poles.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. Compared with the traditional single-blocking device on the market, the utility model can block the outer side of the tank under the action of the first airbag, and can block the inner side of the tank under the action of the second airbag, realizing double blocking, thereby effectively improving the blocking efficiency of the device.

[0020] 2. Compared with the devices on the market that need tools to perform hole drilling operations, the utility model can directly drill holes in the tank body under the action of a threaded drill bit, saving time for borrowing other tools, and can bring a vent pipe into the interior of the tank body during the hole drilling process, avoiding the need to pull out the equipment after drilling the hole, which would cause leakage of liquid inside the tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is an external view of the main body of the utility model;

[0023] Figure 2 It is a schematic diagram of the arc plate and suction cup of the utility model;

[0024] Figure 3 This is a schematic diagram of a first airbag of the utility model;

[0025] Figure 4 It is a schematic diagram of the screw rod and U-shaped push rod of the utility model;

[0026] Figure 5 This is a diagram showing the internal structure of the screw rod of the utility model;

[0027] Figure 6 It is a schematic diagram of the turning plate of the utility model;

[0028] Figure 7 It is a schematic diagram of the ventilation tube and the second air bag of the utility model;

[0029] Figure 8 It is a schematic diagram of the ventilation pipe and ventilation column of the utility model;

[0030] Description of reference numerals:

[0031] 1. tank body; 2. arc-shaped plate; 21. arc-shaped groove; 22. first air bag; 23. vertical pole; 24. suction cup;

[0032] 3. Threaded cavity column; 4. Screw; 41. Threaded head; 42. U-shaped groove; 43. Slide groove; 44. Turn plate;

[0033] 5. Ventilation pipe; 51. U-shaped push rod; 52. Ventilation column; 53. Arc-shaped air outlet; 54. Threaded drill bit; 6. Second air bag. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] See also Figures 1 to 8 , the utility model provides a technical solution:

[0036] A leak plugging device for a normal pressure storage tank comprises a tank body 1, an arc plate 2 is arranged on the outer circumferential surface of the tank body 1, a first air bag 22 is fixedly installed on the inner circumferential surface of the arc plate 2, a screw rod 4 is rotatably installed inside the arc plate 2, and the two ends of the screw rod 4 are located outside the arc plate 2; a plurality of rotating plates 44 are rotatably installed on the left end of the screw rod 4, a vent pipe 5 is slidably installed inside the screw 4, a vent column 52 is fixedly installed on the left end of the vent pipe 5, and a threaded drill bit 54 is fixedly installed on the left end of the vent column 52; the vent pipe 5 ... A second airbag 6 is arranged between the air column 52 and the rotating plate 44, an arc-shaped groove 21 is opened on the inner circumferential surface of the arc plate 2, the first airbag 22 is fixedly installed inside the arc-shaped groove 21, a threaded cavity column 3 is fixedly installed on the outer circumferential surface of the arc plate 2, the threaded cavity column 3 is connected with the threaded hole at the center position of the arc plate 2, a threaded head 41 is rotatably installed on the inner right end of the screw rod 4, a plurality of U-shaped grooves 42 are evenly opened on the left end of the screw rod 4, and one end of the rotating plate 44 is rotatably installed inside the U-shaped groove 42.

[0037] By adopting the above technical solution, the storage tank is a storage device widely used in petrochemical production. In the oil refining industry, it is used to store various raw oils, semi-finished oils, finished oils, aromatic products and liquefied gas, etc. In the process of use, due to the bottom edge of the storage tank, its surface will be touched by external equipment, which will cause cracks and splits in the storage tank, thereby causing the liquid inside the tank body 1 to leak; the structure of the device is as follows, including a tank body 1, an arc plate 2 is arranged on the outer circumferential surface through, wherein vertical poles 23 of the same structure are fixedly installed on both sides of the arc plate 2, and suction cups 24 are fixedly installed at the upper and lower ends of the vertical pole 23, and the suction cups 24 The inner side surface is fitted together with the outer circumferential surface of the tank body 1, and then an arc-shaped groove 21 is opened on the inner circumferential surface of the arc-shaped plate 2, and a first air bag 22 is fixedly installed at a high level inside the arc-shaped groove 21, wherein a threaded hole is opened at the center position of the arc-shaped plate 2, and a through hole is opened at the center of the first air bag 22, which is used to penetrate the threaded hole at the center position of the arc-shaped plate 2; secondly, a threaded cavity column 3 is fixedly installed on the outer circumferential surface of the arc-shaped plate 2, wherein the interior of the threaded cavity column 3 is a cavity structure and both ends are opening devices, and the threaded cavity column 3 is penetrated by the threaded hole at the center position of the arc-shaped plate 2, and a thread is opened inside the threaded cavity column 3.

[0038] In addition, a screw rod 4 is rotatably installed inside the threaded cavity column 3. The interior of the screw rod 4 is in a cavity state and both ends are open. In addition, two slide grooves 43 are provided on the inner circumferential surface of the screw rod 4. Then, a threaded head 41 is rotatably installed at the right end of the interior of the screw rod 4 to seal the right end opening of the screw rod 4. Secondly, a plurality of U-shaped grooves 42 are evenly provided on the left end of the screw rod 4, and corresponding rotating plates 44 are rotatably installed on the U-shaped grooves 42, and the plurality of rotating plates 44 can be combined into a cylindrical structure.

[0039] In addition, a vent pipe 5 is slidably installed inside the screw 4, and the interior of the vent pipe 5 is a cavity structure, and its right end is in an open state, and a U-shaped push rod 51 is fixedly installed on the outer circumferential surface of the vent pipe 5, and the right end of the U-shaped push rod 51 is located on the outside of the screw 4, and the U-shaped push rod 51 is slidably installed inside the slide groove 43, so that the U-shaped push rod 51 can rotate synchronously with the screw 4 during the rotation process, and then when the vent pipe 5 rotates, the screw 4 can move with the vent pipe 5, so as to apply a backward force, so that the subsequent equipment can perform an opening operation on the surface of the tank body 1.

[0040] In addition, a ventilation column 52 is fixedly installed at the left end of the ventilation pipe 5, and the interior of the ventilation column 52 is a cavity and is connected to the ventilation pipe 5. Secondly, a symmetrical arc-shaped air outlet 53 is opened on the right end surface of the ventilation column 52, and a threaded drill bit 54 is fixedly installed at the left end of the ventilation column 52 for drilling holes in the tank body 1. Then a second airbag 6 is fixedly installed on the outer circumferential surface of the ventilation pipe 5, and the left end of the second airbag 6 is fixedly connected to the arc-shaped air outlet 53, so that gas can enter the interior of the second airbag 6, so that the second airbag 6 can block the cracks on the inner wall of the tank body 1; when in use, the suction cup 24 is attached to the outer circumferential surface of the tank body 1, so that the arc plate 2 can be in a fixed state, and during the attachment process, the first airbag 22 on the inner circumferential surface of the arc plate 2 will fit with the cracks on the outer circumferential surface of the tank body 1, thereby making the first airbag 22 It can seal the outer circumferential surface of the tank body 1. Secondly, in order to ensure the sealing effect of the first airbag 22 during use, the construction personnel can inflate the first airbag 22 according to the actual situation on site, so as to ensure that the sealing effect of the first airbag 22 is in a completely closed state. Then, rotate the U-shaped push rod 51. The U-shaped push rod 51 will rotate synchronously with the screw 4 during the rotation process, so that the screw 4 can rotate inside the threaded cavity column 3, and then the screw 4 can gradually approach the tank body 1 with the vent pipe 5, and then under the action of the threaded drill bit 54, it can fit with the outer circumferential surface of the tank body 1. At this time, continue to rotate the U-shaped push rod 51. At this time, the screw 4 will rotate synchronously with the vent pipe 5, and the vent pipe 5 will rotate synchronously with the threaded drill bit 54, so that the threaded drill bit 54 can open a hole in the tank body 1.

[0041] Secondly, during use, the threaded drill bit 54 enters the interior of the tank body 1, pushing the U-shaped push rod 51 into the interior of the tank body 1, and then the left end of the screw rod 4 also extends to the interior of the tank body 1. Finally, the threaded head 41 is turned down, and the equipment is used to inflate the vent pipe 5. The gas inside the vent pipe 5 will pass through the arc-shaped air outlet 53 and enter the interior of the second air bag 6, thereby causing the second air bag 6 to gradually expand, and during the expansion process, it will push the rotating plate 44 to rotate. After completing the inflation operation, the U-shaped push rod 51 moves outward with the vent pipe 5, causing the second air bag 6 to be squeezed and deformed, so that the second air bag 6 can block the inner wall of the tank body 1; compared with the single-layer sealing device on the market, the present device can achieve double-layer sealing inside and outside the tank body 1, effectively improving the sealing effect.

[0042] Specifically, Figures 1 to 8As shown, two slide grooves 43 are provided on the inner circumferential surface of the screw rod 4, a U-shaped push rod 51 is fixedly installed on the outer circumferential surface of the ventilation pipe 5, the right end of the U-shaped push rod 51 is located on the outside of the threaded cavity column 3, the U-shaped push rod 51 is slidably installed inside the slide groove 43, a symmetrically designed arc-shaped air outlet 53 is provided on the right end of the ventilation column 52, the right end of the ventilation column 52 is fixedly connected to the left end of the second airbag 6, vertical poles 23 are fixedly installed at both ends of the arc plate 2, and suction cups 24 are fixedly installed at both ends of the vertical pole 23.

[0043] By adopting the above technical scheme, the plugging devices on the market need to seal the inner and outer surfaces of the tank body 1 when they are working. When sealing the inside of the tank body 1, since the cracks of the tank body 1 are mostly in the state of cracks, even if irregular holes appear at the cracks, it is difficult for the plugging device to enter the inside of the tank body 1 due to the small size of the holes, resulting in the inability of the device to seal the inside of the tank body 1; while in the process of using the present device, the U-shaped push rod can rotate synchronously with the screw rod 4, so that the screw rod 4 will gradually approach the tank body 1, so that the threaded drill bit 54 can drill a hole on the surface of the tank body 1, because the screw 4 will rotate synchronously with the vent pipe 5 when it rotates, so that the vent pipe 5 can be 5 is equipped with a vent column 52, and the vent column 52 is synchronously rotated with a threaded drill bit 54 to perform a hole drilling operation on the cracked part of the tank body 1, so that the subsequent vent pipe 5 and the second air bag 6 can enter the interior of the tank body 1, so that the second air bag 6 can expand to perform a plugging operation on the inner layer of the tank body 1. Compared with the traditional double-layer plugging on the market, the present device can perform a hole drilling operation on the tank body 1 without using any tools, and during the hole drilling operation, the equipment can gradually enter the interior of the tank body 1, and the threaded drill bit 54 will not be pulled out, thereby avoiding leakage of the liquid inside the tank body 1, thereby avoiding splashing of the liquid onto the construction workers and causing harm to them.

[0044] Working principle: First, the suction cup 24 is adsorbed on the outer circumferential surface of the tank body 1 around the crack, and then the first airbag 22 is inflated to seal the outer crack of the tank body 1.

[0045] Then, the U-shaped push rod 51 rotates with the screw rod 4 , so that the screw rod 4 brings the vent pipe 5 close to the tank body 1 , so that the threaded drill bit 54 can perform a hole drilling operation on the tank body 1 .

[0046] Secondly, the vent pipe 5 is located inside the tank body 1 , and then the threaded head 41 is removed, and an inflating operation is performed on the vent pipe 5 to inflate the second airbag 6 .

[0047] Then the U-shaped push rod pulls the vent pipe 5 to slide outward, so that the vent column 52 can squeeze the second air bag 6, so that the second air bag 6 can be transformed from a cylindrical structure to a disc-shaped structure, thereby blocking the inner wall of the tank body 1.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A leak-proof device for a normal pressure storage tank, comprising a tank body (1), characterized in that: An arc-shaped plate (2) is provided on the outer circumferential surface of the tank body (1), and a first air bag (22) is fixedly mounted on the inner circumferential surface of the arc-shaped plate (2); A screw rod (4) is rotatably mounted inside the arc-shaped plate (2), and two ends of the screw rod (4) are located outside the arc-shaped plate (2); A plurality of rotating plates (44) are rotatably mounted on the left end of the screw rod (4), a vent pipe (5) is slidably mounted inside the screw rod (4), a vent column (52) is fixedly mounted on the left end of the vent pipe (5), and a threaded drill bit (54) is fixedly mounted on the left end of the vent column (52); A second air bag (6) is arranged between the ventilation column (52) and the rotating plate (44).

2. The leak-proof device for atmospheric pressure storage tank according to claim 1, characterized in that: An arc-shaped groove (21) is provided on the inner circumferential surface of the arc-shaped plate (2), and the first airbag (22) is fixedly installed inside the arc-shaped groove (21).

3. The leak-proof device for atmospheric pressure storage tank according to claim 1, characterized in that: A threaded cavity column (3) is fixedly mounted on the outer circumferential surface of the arc-shaped plate (2), and the threaded cavity column (3) is connected to a threaded hole at the center of the arc-shaped plate (2).

4. The leak-proof device for atmospheric pressure storage tank according to claim 1, characterized in that: A threaded head (41) is rotatably mounted on the right end of the screw rod (4), a plurality of U-shaped grooves (42) are evenly arranged on the left end of the screw rod (4), and one end of the rotating plate (44) is rotatably mounted inside the U-shaped groove (42).

5. The leak-proof device for atmospheric pressure storage tank according to claim 1, characterized in that: Two sliding grooves (43) are provided on the inner circumferential surface of the screw rod (4).

6. The leak-proof device for atmospheric pressure storage tank according to claim 5, characterized in that: A U-shaped push rod (51) is fixedly mounted on the outer circumferential surface of the ventilation pipe (5), the right end of the U-shaped push rod (51) is located outside the threaded cavity column (3), and the U-shaped push rod (51) is slidably mounted inside the slide groove (43).

7. The leak-proof device for atmospheric pressure storage tank according to claim 1, characterized in that: A symmetrically designed arc-shaped air outlet (53) is provided at the right end of the ventilation column (52), and the right end of the ventilation column (52) is fixedly connected to the left end of the second airbag (6).

8. The leak-proof device for atmospheric pressure storage tank according to claim 1, characterized in that: Vertical poles (23) are fixedly mounted on both ends of the arc-shaped plate (2), and suction cups (24) are fixedly mounted on both ends of the vertical pole (23).

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