Tank container

Abstract

The present application provides a kind of tank container, including tank body and heating structure arranged on the bottom of tank body;Heating structure includes: a plurality of heating jacket, along the longitudinal direction of tank body interval arrangement;Each heating jacket extends along the circumference of tank body to cover on tank body, and heating jacket includes two opposite overlapping and welded together plate, two plate is through pressure double face inflation and thus forms hollow sandwich;Connecting pipeline, for heating medium flow in;Connecting pipeline extends along the longitudinal direction of tank body, and respectively with each heating jacket sandwich connection pass through.The length of plate is longer compared with traditional heating pipe, in addition, plate will not be limited by width, therefore, heating area can easily increase to achieve the desired good heating effect.Due to the existence of sandwich, avoid the contact of heating medium and tank outer wall, and then solve the corrosion problem of heating medium for tank wall, prolong the service life of tank box.

Description

Technical Field

[0001] This invention relates to the field of transport tank container technology, and particularly to a tank container. Background Technology

[0002] Because some media have high melting points, heating systems are often installed on the tank body to ensure smooth unloading. These systems heat the material to a certain temperature, melting it into a liquid within the tank. Please refer to [further details]. Figure 1 and Figure 2 Typical tank heating systems employ a multi-channel, longitudinally aligned semi-tube structure. These semi-tubes are directly welded to the tank wall, forming multiple closed flow channels, known as heating tubes 500. High-temperature steam or hot water typically flows through these heating tubes 500, directly heating the tank. However, due to the limited width of the pipes, the heating area is relatively small. Furthermore, the steam or hot water flowing within the tubes directly contacts the tank wall, leading to corrosion of the tank body, especially when the tank is made of carbon steel, thus reducing the tank's service life. Summary of the Invention

[0003] The purpose of this invention is to provide a tank container to solve the problems of small heating area and easy corrosion of the tank body caused by heating pipes in the prior art.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A tank container includes a tank body and a heating structure disposed at the bottom of the tank body; the heating structure includes: a plurality of heating jackets arranged at intervals along the longitudinal direction of the tank body; each heating jacket extends circumferentially along the tank body to cover the tank body, the heating jacket includes two relatively overlapping plates welded together, the two plates being double-sided bulged by pressure to form a hollow interlayer; connecting pipes for the inflow and outflow of heating medium; the connecting pipes extend along the longitudinal direction of the tank body and are respectively connected to the interlayer of each heating jacket.

[0006] According to one aspect of the invention, the heating jacket includes a first jacket and a second jacket symmetrically arranged along the longitudinal central axis of the tank; both the first jacket and the second jacket have an arcuate profile to fit against the peripheral wall of the tank.

[0007] According to one aspect of the invention, the heating structure further includes a thermally conductive material that fills the gap between the heating jacket and the tank.

[0008] According to one aspect of the present invention, the heating jacket is a honeycomb jacket, wherein two plates are welded at multiple points and expanded by pressure to form a sandwich structure with interconnected internal gaps; the outer surface of the heating jacket has multiple grooves formed due to the weld point depressions; the heating jacket is tightly fitted to the outer wall of the tank, and the grooves are filled with heat-conducting material.

[0009] According to one aspect of the invention, the weld of the heating jacket is circular or elongated.

[0010] According to one aspect of the present invention, the connecting pipeline includes a first inlet pipe and a second inlet pipe; the first inlet pipe is correspondingly disposed with the first jacket, and the second inlet pipe is correspondingly disposed with the second jacket; the first inlet pipe extends longitudinally from back to front along the tank body, and a plurality of branch pipes are provided on the first inlet pipe at intervals, each branch pipe being connected and communicating with the upper end of each first jacket; the rear end of each inlet pipe is an inlet for the heating medium to flow in.

[0011] According to one aspect of the invention, the connecting pipeline further includes an outlet pipe; the outlet pipe is located at the bottom of the tank body and thus lower than each jacket, the outlet pipe extends longitudinally from back to front and communicates with the jacket of each jacket, and the rear end of the outlet pipe is an outlet for the heating medium to flow out.

[0012] According to one aspect of the present invention, the connecting pipeline further includes a first outlet pipe and a second outlet pipe that are bent together and spaced parallel to each other; both the first outlet pipe and the second outlet pipe extend longitudinally from back to front; the first outlet pipe is connected to the interlayer of each jacket, the front end of the second outlet pipe is bent together with the front end of the first outlet pipe, and the rear end of the second outlet pipe is an outlet for the heating medium to flow out.

[0013] According to one aspect of the present invention, the connecting pipeline further includes a first outlet pipe, a second outlet pipe, and a third outlet pipe extending longitudinally and spaced parallel to each other; the first outlet pipe is connected to the interlayer of each first jacket, and the second outlet pipe is connected to the interlayer of each second jacket; the front ends of the first outlet pipe and the second outlet pipe are connected together by bending to form a converging end; the front end of the third outlet pipe is connected to the converging end, and the rear end of the third outlet pipe is an outlet for the heating medium to flow out.

[0014] According to one aspect of the invention, the tank container further includes multiple sets of straps; each set of straps is arranged corresponding to each heating jacket, and the straps are wrapped around the outer surface of the heating jacket in the circumferential direction of the tank body, thereby securing the heating jacket to the tank body.

[0015] As can be seen from the above technical solution, the tank container provided by the present invention has at least the following advantages and positive effects:

[0016] Its heating structure employs multiple heating jackets arranged longitudinally and at intervals along the tank body. Furthermore, the heating jackets extend circumferentially around the tank body to cover it. Specifically, each heating jacket comprises two overlapping and welded plates, which are double-sided bulged under pressure to form a hollow interlayer. The interlayers are interconnected via connecting pipes, allowing the heating medium to flow simultaneously along both the circumferential and longitudinal directions of the tank body through the interlayers, thus heating a large area of ​​the tank.

[0017] Compared to traditional heating tubes, the heating jacket's plates extend circumferentially along the tank body, resulting in a longer plate length. Furthermore, the plates are not limited by width, thus the jacket has a larger surface area. This allows for a significant increase in the heating area covering the tank body, achieving the desired heating effect. Additionally, the jacket prevents the heating medium from contacting the outer wall of the tank, thereby solving the problem of corrosion caused by the heating medium and extending the tank's service life. Attached Figure Description

[0018] Figure 1 This refers to a heating system at the bottom of a tank container in related technologies.

[0019] Figure 2 for Figure 1 A sectional view along the AA direction.

[0020] Figure 3 This is a side view of the tank container in the first embodiment of the present invention.

[0021] Figure 4 for Figure 3 A schematic diagram of the cross-section of the heating jacket along the transverse direction of the tank.

[0022] Figure 5 This is a schematic diagram showing that the weld of the heating jacket in the first embodiment of the present invention is circular.

[0023] Figure 6 This is a schematic diagram showing that the weld of the heating jacket in the first embodiment of the present invention is long and narrow.

[0024] Figure 7 This is a schematic diagram of the bottom of the tank container in the first embodiment of the present invention.

[0025] Figure 8 This is a schematic diagram of the arrangement of the rear end cap of the tank in the first embodiment of the present invention.

[0026] Figure 9 This is a side view of a tank container in the second embodiment of the present invention.

[0027] Figure 10 This is a schematic diagram of the bottom of the tank container in the second embodiment of the present invention.

[0028] The annotations in the attached figures are explained as follows:

[0029] 500-Heating element,

[0030] 200 - Tank body, 20 - Shell body, 21 - Front end cap, 22 - Rear end cap

[0031] 100-Heating structure,

[0032] 1-Heating jacket, 11-Plate, 12-Layer, 13-Weld, 14-First jacket, 15-Second jacket, 101-Groove

[0033] 3-Connecting pipe, 30-Main inlet pipe, 31-First inlet pipe, 32-Second inlet pipe, 33-Branch pipe, 34-Jacketed outlet pipe, 35a-Outlet pipe, 35b-Outlet pipe, 351-First outlet pipe, 352-Second outlet pipe, 301-Inlet, 302-Outlet,

[0034] 5-Strap,

[0035] 7- Thermally conductive materials. Detailed Implementation

[0036] Typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various variations in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations herein are for illustrative purposes only and not intended to limit the present invention.

[0037] This embodiment provides a tank container for storing and transporting materials such as liquid chemicals with high melting points. The tank container mainly includes a frame, a horizontally mounted tank for storing materials inside the frame, and a heating structure on the tank. The heating structure can heat the materials to a certain temperature, causing them to melt into a liquid inside the tank, facilitating unloading or repackaging operations.

[0038] First embodiment of tank container

[0039] Please refer to Figure 3 , Figure 3 The specific structure of a tank container provided in this embodiment is shown.

[0040] The tank body 200 includes a cylindrical body 20 and two end caps respectively located at both ends of the cylindrical body 20.

[0041] by Figure 3With the view direction as a reference, the end cap located at the left end of the cylinder 20 is defined as the front end cap 21, and the end cap located at the right end of the cylinder 20 is defined as the rear end cap 22. The "front," "rear," "up," and "down" directions in the following text are all based on this standard. Unless otherwise specified, the directions in the following embodiments are all based on this direction and will not be changed.

[0042] The heating structure 100 includes multiple heating jackets 1 and connecting pipes 3. The multiple heating jackets 1 are arranged at intervals along the longitudinal direction of the tank body 200. Each heating jacket 1 extends circumferentially around the tank body 200 to cover it. Each heating jacket 1 includes two overlapping and welded plates 11, which are double-expanded under pressure to form a hollow interlayer 12. The connecting pipes 3 allow the heating medium to flow in and out; the connecting pipes 3 extend longitudinally along the tank body 200 and are connected to the interlayers 12 of each heating jacket 1. Therefore, the interlayers 12 are interconnected through the connecting pipes, allowing the heating medium to flow simultaneously along both the circumferential and longitudinal directions of the tank body 200 through the interlayers 12, thus heating a large area of ​​the tank body 200.

[0043] The tank container also includes multiple sets of straps 5. Each set of straps 5 is arranged corresponding to each heating jacket 1. The straps 5 are wrapped around the outer surface of the heating jacket 1 along the circumference of the tank body 200, thereby securing the heating jacket 1 to the tank body 200. The above-mentioned binding method replaces the traditional welding fixing method, making the installation, disassembly and maintenance of the heating structure 100 very convenient and highly practical.

[0044] Compared to traditional heating tubes, the plate 11 of the heating jacket 1 extends circumferentially along the tank body 200, resulting in a longer plate 11. Furthermore, since the plate 11 is not limited by width, the jacket 12 has a larger surface area and thus a larger heating area, easily achieving complete coverage of the bottom of the tank body 200. Moreover, the presence of the jacket 12 prevents contact between the heating medium and the outer wall of the tank body 200, thereby solving the problem of corrosion of the tank wall by the heating medium and extending the service life of the tank.

[0045] In this embodiment, the heating jacket 1 is mainly disposed on the cylinder 20 and wraps around the bottom of the cylinder 20, thereby effectively heating the material settled at the bottom of the tank. In other embodiments, the heating jacket 1 may also be disposed at the end cap.

[0046] Please refer to further details. Figure 4 The heating jacket 1 is a honeycomb jacket, and the two plates 11 are welded at multiple points and formed by pressure expansion to create a sandwich structure with interconnected internal gaps.

[0047] A honeycomb jacket is a highly efficient heat transfer structure characterized by a sealed space through which a heat exchange medium is circulated to heat or cool materials, maintaining their temperature within a predetermined range. Honeycomb jackets are typically manufactured using laser welding, and pressure bulging is a key element in their formation.

[0048] The manufacturing process of a honeycomb jacket is as follows: Two thin steel plates of similar thickness and dimensions are tightly bonded together, and the perimeters of the two plates are welded together to form an edge seal, with two rounds of edge seal to ensure airtightness. Then, a high-energy laser beam is used to weld along points arranged in an equilateral triangle or square pattern, creating a honeycomb structure. The plates are then rolled and bent into an arc shape, and pressure is applied to inflate the honeycomb structure, resulting in a honeycomb-like jacket structure. Due to the turbulent effect of the honeycomb points on the fluid, the honeycomb jacket exhibits advantages such as a high heat transfer coefficient and excellent heat exchange effect.

[0049] like Figure 4 As shown, the outer surface of the heating jacket 1 has multiple grooves 101 formed by the weld points. When the heating jacket 1 is wound around the tank body 200, the surface of the heating jacket 1, except for the grooves 101, is made to fit tightly against the outer wall of the tank body 200 to increase the heating area; while there is a gap between the grooves 101 and the tank wall.

[0050] To this end, the heating structure 100 also includes a heat-conducting material 7. The heat-conducting material 7 fills the groove 101 and is in direct contact with the tank wall. Furthermore, the heat-conducting material 7 is also sandwiched in the gap between the heating jacket 1 and the tank wall. The heat-conducting material 7 can be heat-conducting putty or heat-conducting silicone grease, etc., which not only effectively transfers heat to the tank 200, but also fills the groove 101 well without leaving gaps, thereby further improving the heating effect.

[0051] Please combine Figure 5 and Figure 6 After the heating jacket 1 is unfolded, the weld 13 of the heating jacket 1 can be circular or elongated. In other embodiments, it is not limited to the above shape.

[0052] Please refer to the above as well. Figure 7 and Figure 8 The heating jacket 1 includes a first jacket 14 and a second jacket 15 symmetrically arranged along the longitudinal central axis of the tank 200; both the first jacket 14 and the second jacket 15 have an arcuate profile to fit against the peripheral wall of the tank 200. Preferably, the central angle of each jacket is as close as possible to 90 degrees to effectively cover the bottom of the tank 200.

[0053] The connecting pipeline 3 is divided into the pipeline inlet side and the pipeline outlet side.

[0054] The pipeline inlet side includes an inlet main pipe 30, a first inlet pipe 31, a second inlet pipe 32, and multiple branch pipes 33. Through their connection, the heating medium can be transported to each heating jacket 1.

[0055] The main inlet pipe 30 is roughly U-shaped and is the first section of pipeline through which the heating medium flows in. The main inlet pipe 30 is arranged obliquely upwards close to the lower side of the spherical head at the rear end of the tank body 200, thus being located inside the frame.

[0056] The first inlet pipe 31 and the second inlet pipe 32 are respectively connected to the two transverse ends of the bend in the main inlet pipe 30. Each inlet pipe extends from back to front along the longitudinal direction of the tank body 200. That is, the rear end of each inlet pipe is the inlet 301 for the heating medium to flow in.

[0057] like Figure 8 As shown, the first inlet pipe 31 and the second inlet pipe 32 are arranged at the top, both located above the horizontal central axis of the tank, and corresponding to the first jacket 14 and the second jacket 15, respectively. The first inlet pipe 31 has multiple branch pipes 33 evenly spaced on it. The first inlet pipe 31 is connected to the upper end of the first jacket 14 via the branch pipes 33, and communicates with its interlayer 12. Similarly, the second inlet pipe 32 has multiple branch pipes 33 evenly spaced on it, and communicates with the upper end of the second jacket 15 via the branch pipes 33.

[0058] like Figure 7 As shown, the pipeline outlet side is located at the bottom of the tank 200, including an outlet pipe 35a and multiple jacketed outlet pipes 34.

[0059] The number of multiple jacket outlet pipes 34 is consistent with the number of each heating jacket 1. The jacket 12 of the first jacket 14 and the jacket 12 of the second jacket 15 are connected and communicate with each other through the jacket outlet pipes 34. The jacket outlet pipes 34 are arranged to extend circumferentially along the tank body 200.

[0060] The outlet pipe 35a extends longitudinally from back to front, perpendicular to each of the multiple jacketed outlet pipes 34, and connects to the middle of each jacketed outlet pipe 34. The rear end of the outlet pipe 35a is the outlet 302 for the heating medium to flow out. In other words, the outlet 302 and the inlet 301 are located on the same side of the tank. This same-side arrangement facilitates operation and maintenance by staff.

[0061] During heating, following the arrow indication, the heating medium enters from inlet 301 of the main inlet pipe 30, is branched off by the main inlet pipe 30, reaches the first inlet pipe 31 and the second inlet pipe 32, and then flows into the interior of the heating jacket 1 via the branch pipe 33. Inside the jacket, the heating medium transfers heat to the tank 200, melting the material inside the tank, and then flows through the jacket outlet pipe 34 into the outlet pipe 35a, finally flowing out through the outlet 302 to achieve circulation.

[0062] In this embodiment, placing the pipeline outlet at the bottom of the jacket is more conducive to the discharge of heating medium and condensate from the jacket.

[0063] In other embodiments, it is not necessary to set up a jacket outlet pipe 34 or to connect the interlayers in the two jackets. Instead, multiple first jackets 14 can be connected to one outlet pipe at the same time, and multiple second jackets 15 can be connected to another outlet pipe at the same time. Then, the two outlet pipes are connected together and finally connected to the outlet pipe 35a.

[0064] In summary, the tank container provided by this invention has at least the following advantages and positive effects:

[0065] The heating structure 100 employs multiple heating jackets 1 arranged longitudinally and at intervals along the tank body 200. Furthermore, the heating jackets 1 extend circumferentially along the tank body 200 to cover it. Specifically, each heating jacket 1 comprises two relatively overlapping plates 11 welded together. The two plates 11 are double-expanded under pressure to form a hollow interlayer 12. Each interlayer 12 is interconnected via connecting pipes, allowing the heating medium to flow simultaneously along both the circumferential and longitudinal directions of the tank body 200 through the interlayers 12, thus heating the tank body 200 over a large area.

[0066] Compared to traditional heating tubes, the plate 11 of the heating jacket 1 extends circumferentially along the tank body 200, meaning the plate 11 is longer. Furthermore, the plate 11 is not limited by width. Therefore, the surface area of ​​the jacket 12 is larger, easily increasing the heating area covering the tank body 200 to achieve the desired heating effect. Moreover, the presence of the jacket 12 prevents the heating medium from contacting the outer wall of the tank body 200, thus solving the corrosion problem of the heating medium on the tank wall and extending the service life of the tank.

[0067] Second embodiment of tank container

[0068] Please refer to the above as well. Figure 9 and Figure 10 The difference between this embodiment and the first embodiment is that the structure of the outlet pipe is different.

[0069] In this embodiment, the outlet pipe 35b is similar to a long U-shaped pipe, including a first outlet pipe 351 and a second outlet pipe 352 that are bent and connected at intervals and parallel to each other. Both outlet pipes extend longitudinally from back to front.

[0070] The first outlet pipe 351 is centrally located at the bottom of the tank and is vertically connected to the outlet pipes 34 of each jacket, connecting the jackets of all the first jackets 14 and the second jackets 15 together. The rear end of the first outlet pipe 351 is closed.

[0071] The second outlet pipe 352 is parallel to the first outlet pipe 351 at a distance. The front end of the second outlet pipe 352 is bent and connected to the front end of the first outlet pipe 351, and the rear end of the second outlet pipe 352 is the outlet 302 for the heating medium to flow out.

[0072] In the first embodiment, since the inlet 301 and outlet 302 of the heating structure 100 are both located at the rear end of the tank, that is, the inlet 301 and outlet 302 are located on the same side of the tank, according to conventional thinking, the connecting pipe 3 is often easily designed as in the first embodiment. Figure 7 The structure shown, however, in use, the medium flows faster in the heating jacket 1 closer to the rear end, while the heating jacket 1 located at the front end cannot be heated due to steam short circuit, resulting in poor heating effect.

[0073] Therefore, this embodiment makes a U-shaped improvement to the outlet pipe 35b, so that the heating medium coming out of each heating jacket 1 first gathers at the front end of the first outlet pipe 351, and then flows out from the rear outlet 302 through the second outlet pipe 352; in other words, the total path of the heating medium from the inlet 301 through each heating jacket 1 to the outlet 302 is equal, avoiding uneven heating caused by steam short circuit.

[0074] Third embodiment of tank container

[0075] The difference between this embodiment and the second embodiment is that the structure of the outlet pipe is different.

[0076] Its outlet pipes are divided into three parallel types: a first outlet pipe 351, a second outlet pipe 352, and a third outlet pipe (not shown). All three outlet pipes extend longitudinally from back to front.

[0077] The first outlet pipe 351 is located near the bottom of the first jacket 14 and is connected to the interlayer of all the first jackets 14. The rear end of the first outlet pipe 351 is closed, and the front end of the first outlet pipe 351 is the outlet of the heating medium of each first jacket 14.

[0078] The second outlet pipe 352 has the same function as the first outlet pipe 351. The second outlet pipe 352 is located near the bottom of the second jacket 15 and is connected to the jacket of all the second jackets 15. The front end of the second outlet pipe 351 is the outlet of the heating medium of each second jacket 15, and the front end of the second outlet pipe 351 is bent and connected to the front end of the first outlet pipe 351 to form a converging end.

[0079] Thus, due to the separate arrangement of the two outlet pipes, the first jacket 14 and the second jacket 15 in this embodiment are not directly connected together, but are relatively independent and in parallel.

[0080] The front end of the third outlet pipe is connected to the converging end, so that the heating medium flowing out through the first jacket 14 and the second jacket 15 merges together; the rear end of the third outlet pipe is the outlet 302 for the converged heating medium to flow out. That is, the outlet 302 and the inlet 301 are located on the same side of the tank.

[0081] The design principle of the heating pipeline in this embodiment is the same as that of the equal-path heating pipeline in the second embodiment. That is, the total path of the heating medium from the inlet 301 through each heating jacket 1 to the outlet 302 is equal, avoiding uneven heating caused by steam short circuits.

[0082] Fourth embodiment of tank container

[0083] The difference between this embodiment and the three embodiments mentioned above is that the outlet 302 and the inlet 301 are located on opposite sides of the tank along the axial direction.

[0084] Specifically, outlet 302 can be located at the front end of the tank, while inlet 301 is located at the rear end of the tank. Based on this, the design of outlet 302 and inlet 301 follows the principle of equal-path heating pipelines to avoid steam short-circuiting. Furthermore, the opposite orientation of outlet 302 and inlet 301 ensures that the heating medium can circulate and heat the entire jacket.

[0085] Although the invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A tank container, characterized in that, It includes a tank body and a heating structure disposed at the bottom of the tank body; the heating structure includes: Multiple heating jackets are arranged at intervals along the longitudinal direction of the tank body; each heating jacket extends circumferentially along the tank body to cover the tank body, and the heating jacket includes two relatively overlapping plates welded together, the two plates being double-sided bulged by pressure to form a hollow sandwich. A connecting pipe is provided for the inflow and outflow of the heating medium; the connecting pipe extends longitudinally along the tank body and is connected to the jacket of each of the heating jackets respectively; the connecting pipe includes an inlet and an outlet, and the path of the heating medium from the inlet through each of the heating jackets to the outlet is equal.

2. The tank container according to claim 1, characterized in that, The heating jacket includes a first jacket and a second jacket symmetrically arranged along the longitudinal central axis of the tank; both the first jacket and the second jacket have an arc-shaped profile to fit against the peripheral wall of the tank.

3. The tank container according to claim 2, characterized in that, The heating structure also includes a thermally conductive material, which fills the gap between the heating jacket and the tank.

4. The tank container according to claim 3, characterized in that, The heating jacket is a honeycomb jacket, with two plates welded at multiple points and expanded by pressure to form a sandwich structure with interconnected internal gaps; the outer surface of the heating jacket has multiple grooves formed by the weld points; the heating jacket is tightly fitted to the outer wall of the tank, and the grooves are filled with heat-conducting material.

5. The tank container according to claim 4, characterized in that, The weld seam of the heating jacket is circular or elongated.

6. The tank container according to claim 2, characterized in that, The connecting pipeline includes a first inlet pipe and a second inlet pipe; The first inlet pipe is correspondingly arranged with the first jacket, and the second inlet pipe is correspondingly arranged with the second jacket; the first inlet pipe extends longitudinally from back to front along the tank body, and multiple branch pipes are spaced apart on the first inlet pipe, each branch pipe being connected to the upper end of each first jacket; the rear end of each inlet pipe is an inlet for the heating medium to flow in.

7. The tank container according to claim 6, characterized in that, The connecting pipeline also includes an outlet pipe; the outlet pipe is located at the bottom of the tank body, thus below each jacket.

8. The tank container according to claim 6, characterized in that, The connecting pipeline also includes a first outlet pipe and a second outlet pipe that are bent and parallel to each other; both the first outlet pipe and the second outlet pipe extend longitudinally from back to front; the first outlet pipe is connected to the interlayer of each jacket, the front end of the second outlet pipe is bent and connected to the front end of the first outlet pipe, and the rear end of the second outlet pipe is the outlet for the heating medium to flow out.

9. The tank container according to claim 6, characterized in that, The connecting pipeline further includes a first outlet pipe, a second outlet pipe, and a third outlet pipe that extend longitudinally and are spaced parallel to each other; the first outlet pipe is connected to the interlayer of each first jacket, and the second outlet pipe is connected to the interlayer of each second jacket; the front ends of the first outlet pipe and the second outlet pipe are connected together by bending to form a converging end; the front end of the third outlet pipe is connected to the converging end, and the rear end of the third outlet pipe is an outlet for the heating medium to flow out.

10. The tank container according to claim 1, characterized in that, The tank container also includes multiple sets of straps; each set of straps is arranged corresponding to each heating jacket, and the straps are wrapped around the outer surface of the heating jacket along the circumference of the tank body, thereby securing the heating jacket to the tank body.

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