A tank sealing device

CN224830551UActive Publication Date: 2026-10-09JIANGSU SHUOYUN PETROCHEMICAL EQUIP CO LTD
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Patent Information

Application Number
CN202522246780.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-23
Publication Date
2026-10-09
Estimated Expiration
2035-10-23

AI Technical Summary

Technical Problem

[0005]本实用新型的目的在于提供一种储罐密封装置,解决了现有的问题

Benefits of technology

[0016](1)本实用新型的一种储罐密封装置,装置通过第一连接法兰、第二连接法兰和第三连接法兰的螺栓孔实现管道快速连接,配合充气式密封环的柔性密封,替代传统纯刚性法兰连接;当密封部件损坏时,无需复杂拆卸工序,仅需放气后更换充气式密封环或辅助密封环,大幅缩短维护停机时间,解决传统储罐因刚性连接导致的安装拆卸繁琐、影响生产效率的问题;

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Abstract

The utility model belongs to the technical field of storage tank sealing, especially a kind of storage tank sealing device, including the inside setting of the protective outer cover has inner tank body, the inboard of the inner tank body is provided with drainage pipeline, the outside fixed mounting of drainage pipeline has first connecting flange, battery provides independent power supply for air pump, need not rely on external power supply, make device can be in outdoor, remote factory area and other no urban power environment stable operation;Air pump is gas supply pipeline for inflatable sealing ring gas supply, ensure that sealing effect is not limited by power supply condition, broaden the applicable scene of storage tank inflatable sealing ring tightly after expansion and pipeline, cooperate auxiliary sealing ring and form double sealing structure, compared with traditional single gasket sealing, can better cope with pressure fluctuation and material corrosion, reduce the risk of leakage;This flexible sealing design guarantees that connection is close, and also reduce the component wear caused by rigid connection, improve the stability of device operation.
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Description

Technical Field

[0001] This utility model relates to the field of tank sealing technology, and in particular to a tank sealing device. Background Technology

[0002] As core equipment for storing materials in industries such as chemical, petroleum, and food, the safety and sealing performance of storage tanks have always been a key focus of industry attention. Traditional storage tanks have revealed numerous problems during long-term use: On the one hand, the sealing structures at the inlet and outlet pipe connections of storage tanks are simple, often using a single gasket seal. Under pressure fluctuations, temperature changes, and material corrosion during material transport, the seals are prone to failure, leading to material leakage. This not only wastes resources but may also cause environmental pollution and safety accidents. On the other hand, some storage tanks lack effective leak detection methods, meaning leaks cannot be detected in time, often only becoming apparent when the leakage is substantial, increasing the difficulty and cost of accident handling.

[0003] Meanwhile, traditional storage tanks rely heavily on rigid flange and bolt connections for piping, making installation and disassembly cumbersome and requiring specialized tools and significant manpower. When sealing components are damaged and need replacement, the tank often needs to be shut down for an extended period, impacting production efficiency. Furthermore, some storage tanks lack adequate protective measures, allowing dust and impurities from the external environment to easily enter the connection points, accelerating seal wear, shortening equipment lifespan, and rendering related sealing auxiliary equipment inoperable without external power, thus limiting the tank's use in certain special environments.

[0004] With the increasing demands for safety, reliability, and convenience of storage tanks in industrial production, we propose a storage tank sealing device. Utility Model Content

[0005] The purpose of this invention is to provide a tank sealing device that solves the existing problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A storage tank device includes a protective outer cover, an inner tank, a drain pipe, a first connecting flange, an inlet pipe, a second connecting flange, a column, a third connecting flange, a battery, a gas supply pipe, an inflatable sealing ring, an auxiliary sealing ring, a leak detection sensor, and an air pump. The inner tank is located inside the protective outer cover. A drain pipe is located on the inner side of the inner tank. A first connecting flange is fixedly installed on the outer side of the drain pipe. An inlet pipe is fixedly installed at the bottom of the inner tank. An auxiliary sealing ring is provided at the connection between the inlet pipe and the inner tank.

[0008] Preferably, a second connecting flange is provided at the top of the liquid inlet pipe, a column is fixed at the top of the second connecting flange, and a third connecting flange is fixedly installed at the top of the column. The third connecting flange is used to connect the liquid inlet pipe to other pipes.

[0009] Preferably, an inflatable sealing ring is provided on the outer side of the column, and the air pump is connected to the inflatable sealing ring through a gas supply pipe. After the inflatable sealing ring expands, it can make the connection between the liquid inlet pipe and other pipes tight.

[0010] Preferably, the battery is electrically connected to the air pump to supply power to the air pump.

[0011] Preferably, a leak detection sensor is provided on the bottom inner wall of the protective cover, and the leak detection sensor is used to detect whether the inner tank is leaking.

[0012] Preferably, the auxiliary sealing ring is made of oil-resistant and corrosion-resistant rubber, and the auxiliary sealing ring is tightly fitted to the liquid inlet pipe and the inner tank.

[0013] Preferably, the first connecting flange, the second connecting flange, and the third connecting flange are all provided with multiple bolt holes for fixing the pipes together with bolts.

[0014] Preferably, the protective cover is made of stainless steel, and a heat insulation layer is provided on the inner side of the protective cover.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] (1) A storage tank sealing device of this utility model realizes quick connection of pipeline through the bolt holes of the first connecting flange, the second connecting flange and the third connecting flange, and with the flexible sealing of the inflatable sealing ring, it replaces the traditional pure rigid flange connection; when the sealing component is damaged, there is no need for complicated disassembly process, only need to release the air and replace the inflatable sealing ring or the auxiliary sealing ring, which greatly shortens the maintenance downtime and solves the problem of complicated installation and disassembly and the impact on production efficiency caused by the rigid connection of traditional storage tanks;

[0017] (2) The storage tank sealing device of this utility model provides independent power supply for the air pump through the storage battery, without relying on the external power supply, so that the device can operate stably in environments without mains power, such as outdoors and remote factory areas; the air pump supplies air to the inflatable sealing ring through the gas supply pipeline, ensuring that the sealing effect is not limited by the power supply conditions, thus broadening the applicable scenarios of the storage tank. After the inflatable sealing ring expands, it fits tightly with the pipeline and forms a double sealing structure with the auxiliary sealing ring. Compared with the traditional single gasket seal, it can better cope with pressure fluctuations and material corrosion, and reduce the risk of leakage. This flexible sealing design not only ensures the tightness of the connection, but also reduces the wear of components caused by rigid connection, thus improving the stability of the device operation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of a tank sealing device proposed in this utility model;

[0020] Figure 2 This is a three-dimensional structural diagram of the explosive portion of a storage tank sealing device proposed in this utility model;

[0021] Figure 3 for Figure 2 A schematic diagram of the structure of part A in the diagram;

[0022] Figure 4 This is a partial three-dimensional structural diagram of a tank sealing device proposed in this utility model.

[0023] In the diagram: 1. Protective outer cover; 2. Inner tank; 3. Drainage pipe; 4. First connecting flange; 5. Inlet pipe; 6. Second connecting flange; 7. Column; 8. Third connecting flange; 9. Battery; 10. Gas supply pipe; 11. Inflatable sealing ring; 12. Auxiliary sealing ring; 13. Leakage detection sensor; 14. Air pump. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] refer to Figure 1-4A storage tank device includes a protective outer cover 1, an inner tank 2, a drain pipe 3, a first connecting flange 4, an inlet pipe 5, a second connecting flange 6, a column 7, a third connecting flange 8, a battery 9, a gas supply pipe 10, an inflatable sealing ring 11, an auxiliary sealing ring 12, a leak detection sensor 13, and an air pump 14. The inner tank 2 is located inside the protective outer cover 1. A drain pipe 3 is located on the inner side of the inner tank 2. A first connecting flange 4 is fixedly installed on the outer side of the drain pipe 3. An inlet pipe 5 is fixedly installed at the bottom of the inner tank 2. An auxiliary sealing ring 12 is provided at the connection between the inlet pipe 5 and the inner tank 2. The device is connected via the first connecting flange 4, the second connecting flange 6, and the third connecting flange 7. The bolt holes of flange 6 and the third connecting flange 8 enable quick pipe connection, and the flexible seal of the inflatable sealing ring 11 replaces the traditional pure rigid flange connection. When the sealing component is damaged, there is no need for complicated disassembly procedures. It is only necessary to release the air and replace the inflatable sealing ring 11 or the auxiliary sealing ring 12, which greatly shortens the maintenance downtime and solves the problem of complicated installation and disassembly and reduced production efficiency caused by rigid connection of traditional storage tanks. In this embodiment, the top of the liquid inlet pipe 5 is provided with a second connecting flange 6, the top of the second connecting flange 6 is fixed with a column 7, and the top of the column 7 is fixedly installed with a third connecting flange 8. The third connecting flange 8 is used to connect the liquid inlet pipe 5 to other pipes.

[0026] In this embodiment, an inflatable sealing ring 11 is provided on the outer side of the column 7. The air pump 14 is connected to the inflatable sealing ring 11 through the gas supply pipe 10. After the inflatable sealing ring 11 expands, it can make the connection between the liquid inlet pipe 5 and other pipes tight. The stainless steel protective cover 1 and the inner heat insulation layer can effectively block external dust and impurities from entering the connection part and reduce the wear of the seal. At the same time, it isolates the influence of external temperature on the internal tank and reduces the risk of material deterioration due to temperature changes. The auxiliary sealing ring 12 is made of oil-resistant and corrosion-resistant rubber, which fits tightly with the liquid inlet pipe 5 and the inner tank 2, further improving the corrosion resistance of the sealing part and extending the service life of the overall equipment. In this embodiment, the battery 9 is electrically connected to the air pump 14 to supply power to the air pump 14.

[0027] In this embodiment, a leak detection sensor 13 is provided on the bottom inner wall of the protective cover 1. The leak detection sensor 13 is used to detect whether the inner tank 2 is leaking. The battery 9 provides independent power to the air pump 14, without relying on an external power source, so that the device can operate stably in environments without mains power, such as outdoors and remote factory areas. The air pump 14 supplies air to the inflatable sealing ring 11 through the gas supply pipe 10, ensuring that the sealing effect is not limited by the power supply conditions, thus broadening the applicable scenarios of the storage tank. In this embodiment, the auxiliary sealing ring 12 is made of oil-resistant and corrosion-resistant rubber, and the auxiliary sealing ring 12 is tightly fitted with the liquid inlet pipe 5 and the inner tank 2.

[0028] In this embodiment, the first connecting flange 4, the second connecting flange 6, and the third connecting flange 8 are all provided with multiple bolt holes for fixing the pipes together with bolts; the inflatable sealing ring 11 expands and fits tightly against the pipe, forming a double sealing structure with the auxiliary sealing ring 12. Compared with the traditional single gasket seal, it can better cope with pressure fluctuations and material corrosion, and reduce the risk of leakage; this flexible sealing design not only ensures the tightness of the connection, but also reduces the wear of components caused by rigid connection, and improves the stability of the device operation; in this embodiment, the protective cover 1 is made of stainless steel, and the inner side of the protective cover 1 is provided with a heat insulation layer.

[0029] The implementation principle of a tank sealing device in this application embodiment is as follows: the device achieves rapid pipe connection through the bolt holes of the first connecting flange 4, the second connecting flange 6 and the third connecting flange 8, and with the flexible sealing of the inflatable sealing ring 11, it replaces the traditional pure rigid flange connection; when the sealing component is damaged, there is no need for complicated disassembly procedures, only need to release the air and replace the inflatable sealing ring 11 or the auxiliary sealing ring 12, which greatly shortens the maintenance downtime and solves the problem of cumbersome installation and disassembly and reduced production efficiency caused by rigid connection of traditional tanks;

[0030] The stainless steel protective cover 1 and the inner heat insulation layer can effectively block external dust and impurities from entering the connection parts and reduce the wear of the seals; at the same time, it isolates the external temperature from the internal tank and reduces the risk of material deterioration due to temperature changes; the auxiliary sealing ring 12 is made of oil-resistant and corrosion-resistant rubber, which fits tightly with the liquid inlet pipe 5 and the inner tank 2, further improving the corrosion resistance of the sealing parts and extending the service life of the overall equipment.

[0031] The storage battery 9 provides independent power to the air pump 14, eliminating the need for an external power source and enabling the device to operate stably in environments without mains power, such as outdoors and remote factory areas. The air pump 14 supplies air to the inflatable sealing ring 11 through the gas supply pipeline 10, ensuring that the sealing effect is not limited by the power supply conditions and expanding the applicable scenarios of the storage tank.

[0032] After the inflatable sealing ring 11 expands, it fits tightly against the pipeline, forming a double sealing structure with the auxiliary sealing ring 12. Compared with the traditional single gasket seal, it can better cope with pressure fluctuations and material corrosion, and reduce the risk of leakage. This flexible sealing design not only ensures the tightness of the connection, but also reduces the wear of components caused by rigid connection, and improves the stability of the device operation.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The above provides a detailed description of a storage tank sealing device provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A sealing device for a storage tank, characterized in that, The system includes a protective outer cover (1), an inner tank (2), a drain pipe (3), a first connecting flange (4), an inlet pipe (5), a second connecting flange (6), a column (7), a third connecting flange (8), a battery (9), a gas supply pipe (10), an inflatable sealing ring (11), an auxiliary sealing ring (12), a leak detection sensor (13), and an air pump (14). The inner tank (2) is located inside the protective outer cover (1). A drain pipe (3) is located on the inner side of the inner tank (2). A first connecting flange (4) is fixedly installed on the outer side of the drain pipe (3). An inlet pipe (5) is fixedly installed at the bottom of the inner tank (2). An auxiliary sealing ring (12) is provided at the connection between the inlet pipe (5) and the inner tank (2).

2. The tank sealing device according to claim 1, characterized in that, The top of the liquid inlet pipe (5) is provided with a second connecting flange (6), the top of the second connecting flange (6) is fixed with a column (7), the top of the column (7) is fixedly installed with a third connecting flange (8), and the third connecting flange (8) is used to connect the liquid inlet pipe (5) to other pipes.

3. The tank sealing device according to claim 1, characterized in that, An inflatable sealing ring (11) is provided on the outside of the column (7). The air pump (14) is connected to the inflatable sealing ring (11) through the gas supply pipe (10). After the inflatable sealing ring (11) expands, it can make the connection between the liquid inlet pipe (5) and other pipes tight.

4. A tank sealing device according to claim 1, characterized in that, The battery (9) is electrically connected to the air pump (14) and is used to supply power to the air pump (14).

5. A tank sealing device according to claim 1, characterized in that, The bottom inner wall of the protective cover (1) is provided with a leak detection sensor (13), which is used to detect whether the inner tank (2) is leaking.

6. A tank sealing device according to claim 1, characterized in that, The auxiliary sealing ring (12) is made of oil-resistant and corrosion-resistant rubber. The auxiliary sealing ring (12) is tightly fitted with the liquid inlet pipe (5) and the inner tank (2).

7. A tank sealing device according to claim 1, characterized in that, The first connecting flange (4), the second connecting flange (6) and the third connecting flange (8) are each provided with multiple bolt holes for fixing the pipes together by bolts.

8. A tank sealing device according to claim 1, characterized in that, The protective cover (1) is made of stainless steel, and a heat insulation layer is provided on the inner side of the protective cover (1).