A large swan neck tank mouth air bag locking type sealing device

Abstract

The utility model provides a big swan pipe tank mouth air bag locking type sealing device, including main part structure and air bag structure, main part structure contains inner tube, is equipped with outer tube outside the inner tube, is equipped with flange plate in the outer tube bottom, and the flange plate is fixedly connected through bolt and air bag structure, air bag structure contains air bag, inflation hole and fixed frame, and the air bag is clamped and is connected on the upper and lower two sides of fixed frame, and the air bag top is equipped with inflation hole. Through the inflation expansion in the air bag, make it and the tank mouth close adhesion, effectively improve the sealing reliability, avoid oil gas leakage, improve the sealing property further through the sealing washer set up in the connecting place.

Description

Technical Field

[0001] This utility model mainly relates to the technical field of sealing devices for large loading arms tank openings, specifically a bladder-locking sealing device for large loading arms tank openings. Background Technology

[0002] In liquid loading and unloading operations in industries such as petroleum and chemicals, the large loading arm is a key device connecting storage tanks and transportation equipment. Its tank opening sealing performance is directly related to operational safety, environmental compliance, and operational efficiency.

[0003] In the existing technology, the sealing of the tank opening of the large loading arm is mostly done by mechanical compression, which can effectively achieve the sealing effect. However, there are still technical defects in practical applications. Most large loading arm tank openings are prone to leakage of oil and gas from the tank opening due to uneven distribution of compression force. There is still room for improvement in this aspect. Utility Model Content

[0004] This utility model mainly provides a large loading arm tank opening airbag locking sealing device to solve the technical problems mentioned in the background art.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A large loading arm tank opening airbag locking sealing device includes a main structure and an airbag structure. The main structure includes an inner tube, and an outer tube is provided outside the inner tube. A flange is provided at the bottom of the outer tube, and the flange is fixedly connected to the airbag structure by bolts.

[0007] The airbag structure includes an airbag, an inflation port, and a fixing frame. The upper and lower sides of the fixing frame are snapped into the airbag, and the top of the airbag is provided with an inflation port.

[0008] Furthermore, the airbag structure also includes a fixed plate, a base, a liquid level sensor, and a sealing gasket. The top of the fixed frame is fixedly connected to the fixed plate by bolts, and the bottom of the fixed frame is fixedly connected to the base by bolts. A liquid level sensor is provided on the bottom of the inner wall of the fixed frame.

[0009] Furthermore, the airbag is V-shaped and becomes bulging after inflation to adapt to can openings of different diameters and achieve uniform sealing.

[0010] Furthermore, the liquid level sensor can monitor the oil level in real time and provide feedback to the control system.

[0011] Furthermore, a sealing gasket is provided at the connection between the fixing frame and the fixing plate, and a sealing gasket is provided at the connection between the fixing frame and the chassis.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] Significantly improved sealing performance: The airbag locking sealing structure is adopted. After the airbag is inflated, it becomes round and forms a uniform and tight fit with the inner wall of the tank opening, which effectively avoids oil and gas leakage caused by uneven mechanical clamping force and significantly improves sealing reliability.

[0014] Highly adaptable and compatible with various can opening sizes: The flexible design of the airbag allows it to adapt to can openings of different diameters or slight deformations. The V-arc structure enhances the uniformity of expansion after inflation, reduces dependence on can opening precision, and lowers installation difficulty.

[0015] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0017] Figure 2 This is a diagram showing the overall structure of the present invention;

[0018] Figure 3 This is a cross-sectional view of the airbag structure of this utility model.

[0019] In the diagram: 1. Main structure; 11. Outer pipe; 12. Inner pipe; 13. Flange; 14. Bolt; 2. Airbag structure; 21. Fixing plate; 22. Fixing frame; 23. Airbag; 24. Chassis; 25. Inflation port; 26. Liquid level sensor; 27. Sealing gasket. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] Please refer to the appendix carefully. Figure 1 To be continued Figure 3 As shown, a large loading arm tank opening airbag locking sealing device includes a main structure 1 and an airbag structure 2. The main structure 1 includes an inner tube 12, an outer tube 11 is provided outside the inner tube 12, and a flange 13 is provided at the bottom of the outer tube 11. The flange 13 is fixedly connected to the airbag structure 2 by bolts 14.

[0024] The airbag structure 2 includes a fixed plate 21, a fixed frame 22, an airbag 23, a base 24, an inflation port 25, a liquid level sensor 26, and a sealing gasket 27. The top of the fixed frame 22 is fixedly connected to the fixed plate 21 by bolts 14, and the bottom of the fixed frame 22 is fixedly connected to the base 24 by bolts 14. The upper and lower sides of the fixed frame 22 are snapped into the airbag 23. The airbag is made of oil-resistant and low-temperature-resistant material, and the airbag 23 is V-shaped. After inflation, it becomes round to adapt to tank openings of different diameters and achieve uniform sealing. The top of the airbag 23 is provided with an inflation port 25, and the bottom of the inner wall of the fixed frame 22 is provided with a liquid level sensor 26. The liquid level sensor 26 monitors the oil level in real time and feeds back the electrical signal to the control system to control the delivery of oil.

[0025] A sealing gasket 27 is provided at the connection between the fixed frame 22 and the fixed plate 21, and a sealing gasket 27 is provided at the connection between the fixed frame 22 and the chassis 24 to prevent oil and gas from leaking through gaps.

[0026] The specific operation method of this utility model is as follows:

[0027] According to the tank opening size, insert the inner tube 12 of the main structure 1 into the tank opening until the fixing plate 21 is in contact with the tank opening flange. Use an external inflation device to inflate gas into the air bag 23 through the inflation hole 25. The air bag 23 gradually expands from a V-shaped arc to a bulging round shape, which fits tightly against the inner wall of the tank opening to prevent oil and gas leakage. At the same time, the oil level sensor 26 monitors the oil level in real time and feeds back the electrical signal to the control system to control the oil delivery. After the oil delivery is completed, the air in the air bag 23 is discharged and the inner tube 12 is removed.

[0028] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A type of airbag locking sealing device for the opening of a large loading arm tank, comprising a main structure (1) and an airbag structure (2), characterized in that, The main structure (1) includes an inner tube (12), an outer tube (11) is provided outside the inner tube (12), a flange (13) is provided at the bottom of the outer tube (11), and the flange (13) is fixedly connected to the airbag structure (2) by bolts (14); The airbag structure (2) includes an airbag (23), an inflation hole (25) and a fixing frame (22). The fixing frame (22) is connected to the airbag (23) on both the upper and lower sides. The airbag (23) has an inflation hole (25) on the top.

2. The airbag locking sealing device for the opening of a large loading arm tank according to claim 1, characterized in that, The airbag structure (2) also includes a fixed plate (21), a chassis (24), a liquid level sensor (26) and a sealing gasket (27). The top of the fixed frame (22) is fixedly connected to the fixed plate (21) by bolts (14), and the bottom of the fixed frame (22) is fixedly connected to the chassis (24) by bolts (14). The bottom of the inner wall of the fixed frame (22) is provided with a liquid level sensor (26).

3. The airbag locking sealing device for the opening of a large loading arm tank according to claim 1, characterized in that, The airbag (23) is V-shaped and becomes bulging after inflation to adapt to can openings of different diameters and achieve uniform sealing.

4. The airbag locking sealing device for the opening of a large loading arm tank according to claim 2, characterized in that, The liquid level sensor (26) can monitor the oil level in real time and feed it back to the control system.

5. The airbag locking sealing device for the opening of a large loading arm tank according to claim 2, characterized in that, A sealing gasket (27) is provided at the connection between the fixed frame (22) and the fixed plate (21), and a sealing gasket (27) is provided at the connection between the fixed frame (22) and the chassis (24).

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