Tank top structure and container tank

Abstract

The invention provides a tank top structure and a container tank, and relates to the technical field of storage tanks. The tank top structure comprises a tank top body, a center sleeve, an operation platform and at least one connecting piece, a through hole is formed in the tank top body, the center sleeve penetrates through the through hole, the operation platform is connected with the end, away from the tank top body, of the center sleeve, the operation platform blocks the center sleeve, and at least one connecting pipe is arranged on the operation platform; the connecting pipe is communicated with the central sleeve. The two ends of the connecting piece are connected with the tank top body and the operation platform respectively, and the connecting piece is arranged on the periphery of the center sleeve in a surrounding mode. Load of the operation platform is transmitted to the tank top body through contact of the wall face of the center sleeve, the center sleeve provides a rigid annular supporting reference, the load can be dispersed and concentrated, and tearing or sinking of the tank top body is avoided. The connecting piece is arranged on the periphery of the center sleeve in a surrounding mode, equivalently, a circle of annular auxiliary support is additionally arranged between the tank top body and the operation platform, and the load of the operation platform is further dispersed to a larger-range area.

Description

Technical Field

[0001] This application relates to the field of storage tank technology, and in particular to a tank top structure and container tank. Background Technology

[0002] In the chemical and petrochemical industries, containers and tanks are widely used for storing or processing liquids, gases, and other media. The top of these containers needs to be equipped with an operating platform to accommodate inlet / outlet connections, instrument installation, maintenance, and repair.

[0003] The support legs of the operating platform are fixed to the top of the tank by welding, bolting and other methods. When personnel walk around during routine maintenance and repair work, generating dynamic loads, the contact points between the support legs and the top of the tank will bear huge shear forces and bending moments, causing the top of the tank to deform. Summary of the Invention

[0004] This application provides a tank top structure and container tank to solve the problem of tank top deformation caused by the support legs of the operating platform.

[0005] In a first aspect, the tank top structure provided in the embodiments of this application includes:

[0006] The tank top body has a through hole.

[0007] A central sleeve is inserted through the through hole and is integrally formed with the tank top body.

[0008] The operating platform is connected to the end of the central sleeve away from the tank top body, and the operating platform and the central sleeve are integrally formed. The operating platform seals the central sleeve, and at least one connecting pipe is provided on the operating platform, which is connected to the central sleeve.

[0009] At least one connector, with its two ends connected to the tank top body and the operating platform respectively, and the connector surrounding the outer periphery of the central sleeve.

[0010] In one possible implementation, the tank top structure provided in this application embodiment further includes a plurality of support beams disposed on the tank top body, the plurality of support beams being arranged around the outer periphery of the central sleeve, and one end of the support beams being connected to the central sleeve;

[0011] The end of the connector furthest from the operating platform is connected to the support beam.

[0012] In one possible implementation, the tank top structure provided in this application embodiment has multiple connectors, and the connectors are connected to the support beams respectively.

[0013] In one possible implementation, the tank top structure provided in this application embodiment further includes a support sleeve for connecting to the tank body of the container tank;

[0014] The tank top body is covered at one end of the support sleeve, and the central sleeve is connected to the support sleeve.

[0015] In one possible implementation, the tank top structure provided in this application embodiment further includes a pressure-bearing ring, which is disposed inside the support sleeve and connected to the tank top body.

[0016] In one possible implementation, the tank top structure provided in this application embodiment has a support portion wrapped around the outer edge of the support sleeve, and the support portion is connected to the tank top body.

[0017] In one possible implementation, the tank top structure provided in this application embodiment has the pressure-bearing ring facing one end of the tank top body, the support sleeve facing one end of the tank top body, and the support part facing one end of the tank top body flush.

[0018] In one possible implementation, the tank top structure provided in this application embodiment further includes at least one lifting lug, which is disposed on the support sleeve.

[0019] In one possible implementation, the tank top structure provided in this application embodiment has at least one mounting hole on the tank top body, and the lifting lug is connected to the support sleeve through the mounting hole.

[0020] Secondly, the container provided in the embodiments of this application includes a tank body and a top structure as described above connected to the tank body.

[0021] This application provides a tank top structure and a container tank. The tank top structure includes a tank top body, a central sleeve, an operating platform, and at least one connector. The tank top body has a through hole, through which the central sleeve passes. The operating platform is connected to the end of the central sleeve furthest from the tank top body, and the operating platform seals the central sleeve. At least one connecting pipe is provided on the operating platform, communicating with the central sleeve. The two ends of the connector are connected to the tank top body and the operating platform, respectively, and the connector surrounds the outer periphery of the central sleeve. The load of the operating platform is transferred to the tank top body through contact with the wall surface of the central sleeve. The central sleeve provides a rigid annular support reference, which can distribute concentrated loads and prevent tearing or denting of the tank top body. The connector surrounding the outer periphery of the central sleeve is equivalent to adding an annular auxiliary support between the tank top body and the operating platform, further distributing the load of the operating platform to a larger area. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0023] Figure 1 A cross-sectional view of a container provided in an embodiment of this application;

[0024] Figure 2 for Figure 1 A sectional view of the tank top structure;

[0025] Figure 3 A top view of a container provided in an embodiment of this application;

[0026] Figure 4 for Figure 3 A partial structural diagram of the container tank.

[0027] Explanation of reference numerals in the attached figures:

[0028] 10. Tank top structure;

[0029] 100. Tank top body; 110. Through hole; 120. Mounting hole;

[0030] 200. Center sleeve;

[0031] 300. Operating platform; 310. Connecting pipe;

[0032] 400. Connectors;

[0033] 500. Support beam;

[0034] 600. Support sleeve; 610. Support part;

[0035] 700, bearing ring;

[0036] 800, sling;

[0037] 20. Tank body.

[0038] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0039] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0040] The terms “first,” “second,” “third,” and “fourth,” etc., as used in this application description (if applicable), are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0041] As mentioned in the background section, containers and tanks are widely used in the chemical and petrochemical industries for storing or processing liquids, gases, and other media. The top of these containers and tanks requires an operating platform to accommodate inlet / outlet connections, instrument installation, maintenance, and repair.

[0042] The support legs of the operating platform are fixed to the top of the tank by welding, bolting and other methods. When personnel walk around during routine maintenance and repair work, generating dynamic loads, the contact points between the support legs and the top of the tank will bear huge shear forces and bending moments, causing the top of the tank to deform.

[0043] To address the aforementioned problems in the prior art, this application provides a tank top structure and a container tank. The tank top structure includes a tank top body, a central sleeve, an operating platform, and at least one connecting member. The tank top body has a through hole, through which the central sleeve passes. The operating platform is connected to the end of the central sleeve furthest from the tank top body, and the operating platform seals the central sleeve. At least one connecting pipe is provided on the operating platform, communicating with the central sleeve. The two ends of the connecting member are connected to the tank top body and the operating platform respectively, and the connecting member surrounds the outer periphery of the central sleeve. The load of the operating platform is transferred to the tank top body through contact with the wall surface of the central sleeve. The central sleeve provides a rigid annular support reference, which can distribute concentrated loads and prevent tearing or denting of the tank top body. The connecting member surrounding the outer periphery of the central sleeve is equivalent to adding an annular auxiliary support between the tank top body and the operating platform, further distributing the load of the operating platform to a larger area.

[0044] The following describes exemplary application scenarios of the present invention.

[0045] The tank top structure provided by this invention can be applied to containers, such as storage containers, reaction containers, and separation containers.

[0046] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will be described below with reference to the accompanying drawings.

[0047] Reference Figures 1 to 4 As shown in the embodiment of this application, the tank top structure 10 includes a tank top body 100, a central sleeve 200, an operating platform 300, and at least one connector 400.

[0048] A through hole 110 is provided on the tank top body 100, and a central sleeve 200 is inserted through the through hole 110. An operating platform 300 is connected to the end of the central sleeve 200 away from the tank top body 100, and the operating platform 300 blocks the central sleeve 200. At least one connecting pipe 310 is provided on the operating platform 300, and the connecting pipe 310 communicates with the central sleeve 200. The two ends of the connector 400 are respectively connected to the tank top body 100 and the operating platform 300, and the connector 400 surrounds the outer periphery of the central sleeve 200.

[0049] It is understood that the can top structure 10 provided in this application embodiment can be used in a container tank. The can top structure 10 is connected to the tank body 20 of the container tank to form a closed receiving cavity. The tank body 20 has an opening, and the can top body 100 of the can top structure 10 is configured to cover the opening of the tank body 20.

[0050] A central sleeve 200 is provided on the top body 100 of the tank. The central sleeve 200 is connected to the opening of the tank body 20. The operating platform 300 blocks the central sleeve 200. The central sleeve 200 is connected to the connecting pipe 310 on the operating platform 300. In this way, the receiving cavity of the container can be connected to external equipment through the connecting pipe 310 for the purpose of transmitting media or installing detection equipment (such as sensors).

[0051] The operating platform 300 is mounted on the central sleeve 200. The load of the operating platform 300 is transferred to the tank top body 100 through the wall surface of the central sleeve 200, transforming the original point contact load into an annular surface contact load. This greatly disperses the concentrated load and prevents tearing or denting of the tank top body 100. Furthermore, the rigid annular support reference of the central sleeve 200, compared to traditional multi-point support legs, makes it easier to ensure levelness on the circumferential support surface, effectively preventing the operating platform 300 from tilting due to uneven support points.

[0052] Furthermore, the connector 400 is positioned around the outer periphery of the central sleeve 200, effectively adding a ring-shaped auxiliary support between the tank top body 100 and the operating platform 300, further distributing the load of the operating platform 300 over a wider area. When the operating platform 300 is subjected to eccentric loads (such as personnel performing maintenance at the platform edge or lateral wind loads), the connector 400 can effectively bear part of the eccentric load, preventing the load from being concentrated entirely on the central sleeve 200 and preventing shear failure at the connection node between the central sleeve 200 and the operating platform 300.

[0053] For example, the tank top body 100 may be a dome-shaped, conical, or flat-topped structure, and the material may be carbon steel, stainless steel, or composite material. The central sleeve 200 may be a cylindrical, conical, or other irregularly shaped structure, and the material may be metal or corrosion-resistant composite material.

[0054] Specifically, refer to Figure 2 and Figure 4 As shown, the tank top body 100 is conical, and the central sleeve 200 is cylindrical. The central sleeve 200 is coaxially arranged with the tank top body 100. The central sleeve 200 is integrally welded to the side wall of the through hole 110 of the tank top body 100. This eliminates the need for bolts and other connection structures, and also increases the structural strength of the connection.

[0055] The internal cavity of the central sleeve 200 provides a dedicated through-channel for the process pipelines (such as feed pipes, discharge pipes, and return pipes) and instrument cables (such as temperature sensor and pressure sensor cables) of the tank top body 100. This integrates multiple small openings that were originally scattered into a single large-diameter opening in the central sleeve 200, preventing a decrease in strength of the tank top body 100 due to excessive openings. Simultaneously, the centralized arrangement of pipelines facilitates maintenance on the operating platform 300, improving the convenience of process operations.

[0056] For example, the operating platform 300 can be circular, square, or other shapes, and the material can be steel or aluminum alloy. The connecting pipe 310 can be a straight pipe, a bend, or a pipe with a flange, and the material can be metal or plastic. The connector 400 can be made of metal.

[0057] Furthermore, the operating platform 300 and the central sleeve 200 are integrally welded at their ends, one end of the connector 400 is integrally welded to the operating platform 300, and the other end of the connector 400 is integrally welded to the tank top body 100. In this way, each component is connected into a single structure by welding, eliminating the need for bolts, nuts, and other connecting structures, significantly saving material and reducing overall weight. Moreover, the integrated welded structure has superior fatigue resistance, effectively resisting long-term repeated loads, avoiding fatigue damage at connection nodes, and extending the service life of the equipment.

[0058] In summary, in the tank top structure 10 provided in this application embodiment, the load of the operating platform 300 is transferred to the tank top body 100 through the contact surface of the central sleeve 200. The central sleeve 200 provides a rigid annular support reference, which can distribute concentrated loads and prevent the tank top body 100 from tearing or denting. The connector 400 is arranged around the outer periphery of the central sleeve 200, which is equivalent to adding an annular auxiliary support between the tank top body 100 and the operating platform 300, further distributing the load of the operating platform 300 to a larger area.

[0059] Reference Figure 2 and Figure 4 As shown, in some embodiments, the tank top structure 10 provided in this application further includes a plurality of support beams 500 disposed on the tank top body 100. The plurality of support beams 500 are arranged around the outer periphery of the central sleeve 200, and one end of the support beam 500 is connected to the central sleeve 200. The end of the connector 400 away from the operating platform 300 is connected to the support beam 500.

[0060] In the above embodiment, multiple support beams 500 are distributed in a ring around the central sleeve 200, which significantly improves the overall rigidity and deformation resistance of the tank top body 100.

[0061] One end of the support beam 500 is connected to the central sleeve 200. The support beam 500 can further disperse the annular line load transmitted by the central sleeve 200 into multiple radially distributed surface loads, so that the stress area of ​​the tank top body 100 is expanded from a small area around the central sleeve 200 to a large area covered by multiple support beams 500, thereby further preventing the tank top body 100 from deforming.

[0062] Furthermore, the end of the connector 400 furthest from the operating platform 300 is connected to the support beam 500, which provides a rigid connection platform for the connector 400 to distribute the stress on the connector 400.

[0063] Specifically, refer to Figures 2 to 4 As shown, the support beam 500 can extend radially along the operating platform 300.

[0064] For example, the support beam 500 can be a rectangular, I-shaped, or box-shaped cross-section structure, and the material can be steel, aluminum alloy, or composite material. The support beam 500 is welded to the tank top body 100, one end of the support beam 500 is welded to the central sleeve 200, and the end of the connector 400 away from the central sleeve 200 is welded to the support beam 500.

[0065] The distance between the ends of two adjacent support beams 500 that are furthest from the central sleeve 200 can be 2 to 3 meters, such as 2 meters, 2.1 meters, 2.2 meters, 2.3 meters, 2.4 meters, 2.5 meters, 2.6 meters, 2.7 meters, 2.8 meters, 2.9 meters, 3 meters, etc.

[0066] Reference Figure 2 and Figure 4 As shown, in one embodiment, there are multiple connectors 400, and the connectors 400 are connected to the support beam 500 respectively.

[0067] In the above embodiment, the connector 400 and the support beam 500 are connected in a one-to-one correspondence. The load of each connector 400 is transferred to the tank top body 100 through the independent support beam 500, avoiding load concentration caused by uneven distribution of connectors 400, and further improving the deformation resistance and long-term stability of the tank top structure 10.

[0068] Specifically, refer to Figure 4 As shown, there are 8 connectors 400 and 8 support beams 500. Each connector 400 is connected to each support beam 500 to form a uniform load distribution path.

[0069] In another embodiment, there is one connector 400, which is a ring structure. The upper end face of the connector 400 is welded to the operating platform 300, and the lower end face of the connector 400 is welded to multiple support beams 500.

[0070] In the above embodiment, the annular connector 400 can also transfer the load to each support beam 500.

[0071] Reference Figure 2 As shown, in some embodiments, the tank top structure 10 provided in this application further includes a support sleeve 600, which is used to connect with the tank body 20 of the container. The tank top body 100 covers one end of the support sleeve 600, and the central sleeve 200 communicates with the support sleeve 600.

[0072] Understandably, referring to Figure 1 and Figure 2 As shown, the container body 20 has a receiving groove, and the support sleeve 600 is provided to connect with the groove opening of the receiving groove, so that the top body 100, the support sleeve 600 and the container body 20 form a container with a receiving cavity.

[0073] In the above embodiment, a portion of the load of the tank top body 100 is transferred to the tank body 20 via the support sleeve 600, reducing the stress burden on the tank top body 100. The covering connection between the support sleeve 600 and the tank top body 100 ensures that the load is evenly distributed along the mating surface between the tank top body 100 and the support sleeve 600, avoiding connection failure due to local stress concentration, and further improving the overall stability of the tank top structure 10.

[0074] The inner cavity of the connecting pipe 310, the inner cavity of the central sleeve 200, the inner cavity of the support sleeve 600, and the receiving groove are connected in sequence.

[0075] For example, the support sleeve 600 can be cylindrical, and the material can be carbon steel, stainless steel or corrosion-resistant alloy, etc. The end face of the support sleeve 600 is welded to the tank top body 100, which increases the structural strength of the connection while ensuring the sealing performance.

[0076] In one embodiment, the support sleeve 600 and the tank body 20 are integrally formed, which eliminates the need for a connecting structure between the two, saves costs, and provides higher overall structural strength.

[0077] In another embodiment, the support sleeve 600 is welded to the groove of the receiving slot of the tank body 20, which increases the structural strength of the connection while ensuring sealing.

[0078] Reference Figure 2 As shown, in some embodiments, the tank top structure 10 provided in this application also includes a pressure-bearing ring 700, which is disposed on the inner side of the support sleeve 600 and is connected to the tank top body 100.

[0079] In the above embodiment, the pressure-bearing ring 700 is disposed on the inner side of the support sleeve 600. The pressure-bearing ring 700 serves as an additional support point on the support sleeve 600 and together with the end of the support sleeve 600, it supports the tank top body 100, thereby increasing the force-bearing area of ​​the tank top body 100. The vertical load from the tank top body 100 and its operating platform 300 is evenly distributed on the contact surface between the pressure-bearing ring 700 and the end of the support sleeve 600, effectively preventing the tank top body 100 from being crushed, dented, or subjected to local buckling deformation due to excessive local pressure.

[0080] The thickness of the bearing ring 700 is greater than or equal to 16mm, for example, 16mm, 17mm, 18mm, 19mm, 20mm and above, to ensure connection strength. The cross-sectional width of the bearing ring 700 can be determined based on the strength calculation results.

[0081] For example, the pressure ring 700 can be an annular steel plate or a composite material ring, with high strength and corrosion resistance. The pressure ring 700 is welded to the inner wall of the support sleeve 600 and to the tank top body 100, thus ensuring sealing while increasing the structural strength of the connection.

[0082] Reference Figures 2 to 4 As shown, in some embodiments, a support portion 610 is provided around the outer edge of the support sleeve 600, and the support portion 610 is connected to the tank top body 100.

[0083] In the above embodiments, the support portion 610 is arranged around the outer edge of the support sleeve 600, which can further support the structural strength of the sleeve 600, eliminate stress concentration at the edge of the support sleeve 600, and improve the overall load-bearing capacity and deformation resistance of the support sleeve 600.

[0084] Furthermore, the support part 610 is connected to the tank top body 100. The support part 610 and the pressure ring 700 together serve as additional support points on the support sleeve 600, jointly supporting the tank top body 100, thereby increasing the force-bearing area of ​​the tank top body 100. The vertical load from the tank top body 100 and its operating platform 300 is evenly distributed to the contact surfaces of the pressure ring 700, the end of the support sleeve 600 and the support part 610, effectively preventing the tank top body 100 from being crushed, dented or subjected to local buckling deformation due to excessive local pressure.

[0085] Among them, the support part 610 and the support sleeve 600 are integrally formed structures, and the support part 610 is welded to the tank top body 100.

[0086] Reference Figure 2 As shown, in some embodiments, the end of the pressure ring 700 facing the tank top body 100, the end of the support sleeve 600 facing the tank top body 100, and the end of the support portion 610 facing the tank top body 100 are flush.

[0087] In the above embodiment, the three-end flush design ensures that the support height of the three support points on the tank top body 100 is completely consistent. The tank top body 100 can fully and seamlessly fit with the flush support reference surface, completely eliminating the generation of additional bending moment and ensuring uniform stress distribution at the three support points.

[0088] Furthermore, refer to Figure 2 As shown, the tank top body 100 has a conical structure, and the ends of the pressure ring 700, the support sleeve 600, and the support part 610 form a conical structure that is adapted to the tank top body 100.

[0089] Reference Figures 2 to 4As shown, in some embodiments, the tank top structure 10 provided in this application also includes at least one lifting lug 800, which is disposed on the support sleeve 600.

[0090] In the above embodiment, by providing lifting lugs 800 on the support sleeve 600, connection points are provided for the hoisting of the tank top structure 10 and the container tank.

[0091] The lifting lug 800 can be a ring-shaped lug, an L-shaped lug, or a welded lifting ring, and the material can be steel or aluminum alloy. The lifting lug 800 is welded to the support sleeve 600. To increase the strength of the weld between the lifting lug 800 and the support sleeve 600, a double-sided notch can be opened on the end face of the lifting lug 800.

[0092] At least one lifting lug 800. It can be understood that the number of lifting lugs 800 can be one or more. Multiple lifting lugs 800 are arranged around the periphery of the central sleeve 200. For example, the number of lifting lugs 800 can be 2, 3, 4, 5, etc. There are no further restrictions here.

[0093] Reference Figure 2 As shown, in some embodiments, at least one mounting hole 120 is provided on the tank top body 100, and the lifting lug 800 is connected to the support sleeve 600 through the mounting hole 120.

[0094] In the above embodiment, by providing a mounting hole 120 on the tank top body 100, the mounting hole 120 can avoid the lifting lug 800, allowing the lifting lug 800 to be connected to the support sleeve 600 through the mounting hole 120.

[0095] At least one mounting hole 120. It can be understood that the number of mounting holes 120 can be one; the number of mounting holes 120 can also be multiple, with multiple mounting holes 120 arranged around the periphery of the central sleeve 200. For example, the number of mounting holes 120 can be 2, 3, 4, 5, etc., as long as the number of mounting holes 120 corresponds one-to-one with the number of lifting lugs 800. No further restrictions are imposed here.

[0096] The size of the mounting hole 120 is slightly larger than that of the lifting lug 800 to ensure that the weld between the lifting lug 800 and the support sleeve 600 can fill the mounting hole 120, thereby achieving a seal.

[0097] Specifically, the tank top body 100 can be made of thin metal sheet with a thickness of 5-8 mm, and the operating platform 300 can be made of corrugated sheet to improve its rigidity. The corrugated sheet can be made of thin metal sheet with a thickness of 1-3 mm. The diameter of the central sleeve 200 can be determined according to the size and number of connecting pipes 310, and can be 0.3-0.5 times the diameter of the container tank. The thickness of the central sleeve 200 is between that of the tank top body 100 and the pressure ring 700, and can be 10-16 mm.

[0098] Reference Figure 1 As shown, the container provided in this embodiment includes a tank body 20 and a top structure 10 connected to the tank body 20 as described above.

[0099] In the above structural configuration, since the container adopts the can top structure 10 in the above embodiment, it also has the advantages and benefits brought by the can top structure 10, which will not be elaborated here.

[0100] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only.

[0101] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope.

Claims

1. A tank top structure (10), characterized in that, include: The can top body (100) has a through hole (110). A central sleeve (200) is inserted through the through hole (110) and is integrally formed with the tank top body (100); An operating platform (300) is connected to the end of the central sleeve (200) away from the tank top body (100), and the operating platform (300) and the central sleeve (200) are integrally formed. The operating platform (300) seals the central sleeve (200). At least one connecting pipe (310) is provided on the operating platform (300), and the connecting pipe (310) is connected to the central sleeve (200). At least one connector (400) is provided, with its two ends connected to the tank top body (100) and the operating platform (300) respectively, and the connector (400) is arranged around the outer periphery of the central sleeve (200).

2. The tank top structure (10) according to claim 1, characterized in that, It also includes a plurality of support beams (500) disposed on the tank top body (100), the plurality of support beams (500) being arranged around the outer periphery of the central sleeve (200), and one end of the support beams (500) being connected to the central sleeve (200); The end of the connector (400) away from the operating platform (300) is connected to the support beam (500).

3. The tank top structure (10) according to claim 2, characterized in that, There are multiple connectors (400), and the connectors (400) are connected to the support beams (500) respectively.

4. The tank top structure (10) according to any one of claims 1 to 3, characterized in that, It also includes a support sleeve (600) for connecting to the tank body (20) of the container; The tank top body (100) is disposed over one end of the support sleeve (600), and the central sleeve (200) is connected to the support sleeve (600).

5. The tank top structure (10) according to claim 4, characterized in that, It also includes a pressure-bearing ring (700), which is disposed on the inner side of the support sleeve (600) and is connected to the tank top body (100).

6. The tank top structure (10) according to claim 5, characterized in that, A support portion (610) is provided around the outer edge of the support sleeve (600), and the support portion (610) is connected to the tank top body (100).

7. The tank top structure (10) according to claim 6, characterized in that, The pressure-bearing ring (700) is flush with one end facing the tank top body (100), the support sleeve (600) is flush with one end facing the tank top body (100), and the support part (610) is flush with one end facing the tank top body (100).

8. The tank top structure (10) according to claim 4, characterized in that, It also includes at least one lug (800) disposed on the support sleeve (600).

9. The tank top structure (10) according to claim 8, characterized in that, At least one mounting hole (120) is provided on the tank top body (100), and the lifting lug (800) is connected to the support sleeve (600) through the mounting hole (120).

10. A container, characterized in that, It includes a tank body (20) and a tank top structure (10) as described in any one of claims 1 to 9 connected to the tank body (20).

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