tank container

Abstract

This invention provides a tank container, including a tank body and a heating system connected to the tank body. The bottom of the tank body is provided with a discharge port and at least one connecting hole spaced apart from the discharge port. The heating system includes at least one internal heating device. The internal heating device includes: an outer sleeve with one end open and having a space inside; an inner sleeve disposed inside the outer sleeve; a boss protruding outward from one end of the inner sleeve, the boss corresponding to and closing the opening of the outer sleeve; a space between the outer circumference of the inner sleeve and the inner circumference of the outer sleeve; an internal thread on the inner circumference of the inner sleeve; a first liquid-absorbing layer adhering to the inner circumferential wall of the outer sleeve and the outer circumferential wall of the inner sleeve; a first heat-conducting liquid disposed within the space; connecting flanges and connecting holes are provided one-to-one; the connecting flanges are connected to the peripheral sidewalls of the corresponding connecting holes to realize the connection between the internal heating device and the tank body; the outer sleeve and the inner sleeve extend at least partially into the tank body.

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 tanks to ensure smooth unloading of tank containers. These systems heat the materials to a certain temperature, melting them into a liquid within the tank. Currently, steam is commonly used for heating, but steam heating often fails to reach the bottom of the unloading area, leading to blockages at the unloading port. Summary of the Invention

[0003] The purpose of this invention is to provide a tank container to solve the problem of unloading port blockage in the prior art.

[0004] To solve the above-mentioned technical problems, the present invention provides a tank container, including a tank body and a heating system connected to the tank body. The bottom of the tank body is provided with a discharge port and at least one connecting hole spaced apart from the discharge port. The heating system includes at least one internal heating device, and the internal heating device is correspondingly arranged with the connecting hole.

[0005] The internal heating device includes:

[0006] The outer tube is open at one end and has internal space.

[0007] An inner sleeve is disposed inside the outer sleeve; one end of the inner sleeve has a protruding boss, which corresponds to and closes the opening of the outer sleeve; there is a gap between the outer circumference of the inner sleeve and the inner circumference of the outer sleeve to form an accommodating space, and the accommodating space is a vacuum environment; the inner circumference of the inner sleeve is provided with an internal thread.

[0008] The first absorbent layer is attached to the inner wall of the outer sleeve; the first absorbent layer is capable of condensing liquid.

[0009] A first heat-conducting liquid is disposed within the accommodating space; the volume of the first heat-conducting liquid is 1% to 10% of the volume of the accommodating space.

[0010] A connecting flange is fitted around the outer periphery of the outer sleeve and close to the opening; the connecting flange and the connecting hole are arranged in a one-to-one correspondence; the connecting flange is connected to the peripheral sidewall of the corresponding connecting hole to realize the connection between the internal heating device and the tank body, and the outer sleeve and the inner sleeve extend at least partially into the tank body.

[0011] In one embodiment, the pressure of the accommodating space is 0.01 MPa to 0.05 MPa; the outer sleeve is inclined or vertical relative to the tank body;

[0012] When there are multiple internal heating devices, the multiple internal heating devices are arranged around the discharge port;

[0013] The tank body includes a cylindrical body and end caps located at opposite ends of the cylindrical body. The end caps are provided with the discharge port and the connection hole.

[0014] In one embodiment, the outer sleeve has a thickness of 0.1–4 mm, an outer diameter of 5–50 mm, a length of 100–600 mm, an inner sleeve has a thickness of 0.1–4 mm, and a distance of 1–10 mm between the inner wall of the outer sleeve and the outer wall of the inner sleeve; the connecting flange has a thickness of 10–40 mm.

[0015] In one embodiment, the thermal conductivity of the first heat-conducting fluid is greater than 0.4 (W / (m·K));

[0016] The first heat-conducting fluid comprises one of the following: a mixed aqueous solution of dichromate, a mixed aqueous solution of permanganate, ethylene glycol, dichloromethane, distilled water, oil, ethanol, and methanol.

[0017] In one embodiment, the first absorbent layer is a capillary structure formed on the inner peripheral wall of the outer sleeve, an uneven structure formed on the inner peripheral wall of the outer sleeve, or a fibrous material attached to the inner peripheral wall of the outer sleeve.

[0018] In one embodiment, the heating system includes an external heating device disposed at the discharge port, the external heating device comprising:

[0019] The outer casing includes a cylindrical body and an end plate disposed at one end thereon; a through hole is provided in the middle of the end plate;

[0020] An inner shell is disposed within the outer shell, and its outer periphery is connected to the inner peripheral wall of the end plate; a through hole penetrating its axis is provided in the middle of the inner shell, and the through hole communicates with the discharge port; an annular channel is provided inside the inner shell; a receiving groove is formed between the inner shell and the outer shell, and the annular channel communicates with the receiving groove;

[0021] The second liquid-absorbing layer is disposed on the inner peripheral wall of the annular channel and the outer peripheral wall of the inner shell; the second liquid-absorbing layer is capable of condensing liquid.

[0022] A liquid collection box is disposed outside the outer shell and communicates with the receiving groove;

[0023] The second heat-conducting fluid is disposed in the liquid collection box;

[0024] The external heating device is connected to the tank, and the opening of the receiving tank is sealed by the tank. The receiving tank, the annular channel, and the liquid collection box constitute a closed cavity, which is a vacuum environment. The volume of the second heat-conducting liquid accounts for 1% to 10% of the volume of the closed cavity.

[0025] In one embodiment, the inner housing includes a cylindrical first housing portion, a second housing portion extending inward and downward from the axial top of the first housing portion, and a sealing plate located at the axial bottom of the first housing portion and the second housing portion. The second housing portion is inclined inward from top to bottom, and the first housing portion, the second housing portion, and the sealing plate constitute the annular channel.

[0026] The first housing portion has a through hole, which connects the receiving groove and the annular channel.

[0027] In one embodiment, the pressure of the sealed cavity is 0.01 MPa to 0.05 MPa; the cross-section of the liquid collection box is circular.

[0028] The outer casing is inclined, and the liquid collection box is located at the bottom of the outer casing.

[0029] In one embodiment, the thermal conductivity of the second heat-conducting fluid is greater than 0.4 (W / (m·K));

[0030] The second heat-conducting fluid includes one of the following: a mixed aqueous solution of dichromate, a mixed aqueous solution of permanganate, ethylene glycol, dichloromethane, distilled water, oil, ethanol, and methanol.

[0031] In one embodiment, the second absorbent layer is a capillary structure formed by the inner peripheral wall of the annular channel and the outer peripheral wall of the inner shell, an uneven structure formed by the inner peripheral wall of the annular channel and the outer peripheral wall of the inner shell, or a fibrous material attached to the inner peripheral wall of the annular channel and the outer peripheral wall of the inner shell.

[0032] As can be seen from the above technical solution, the advantages and positive effects of the present invention are as follows:

[0033] The tank container of this invention includes a tank body and a heating system. The heating system includes an internal heating device. By heating the inner sleeve, the first heat-conducting liquid in the containment space is heated and rapidly vaporized into steam, which fills the entire containment space. The steam rapidly releases heat along the outer sleeve and condenses and flows back through the action of the first liquid absorption layer. The first heat-conducting liquid forms a vaporization-condensation cycle. The rapid heat release process raises the temperature of the material near the discharge port, thereby enhancing its fluidity and preventing blockage of the discharge port.

[0034] Furthermore, the heating system includes an external heating device. Heating the liquid collection box of the external heating device causes the second heat-conducting liquid to rapidly vaporize and fill the sealed cavity. The vapor rapidly releases heat and condenses near the outer shell. Since the heat-releasing area of ​​the external heating device is much larger than its heat-absorbing area, the rapid heat absorption and release of the second heat-conducting liquid within the sealed cavity allows the external heating device and surrounding area to heat up quickly, further enhancing the material's fluidity and thus better preventing blockage at the discharge port. The external heating device and the internal heating device provide heating from the inside and outside of the tank respectively, offering dual protection. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of a tank container according to one embodiment of the present invention.

[0036] Figure 2 yes Figure 1 Partial sectional view of a medium-sized tank container.

[0037] Figure 3 This is a schematic diagram of the internal heating device according to one embodiment of the present invention.

[0038] Figure 4 yes Figure 3 A cross-sectional view of the internal heating device.

[0039] Figure 5 This is a schematic diagram of the structure of an external heating device according to one embodiment of the present invention.

[0040] Figure 6 yes Figure 5 Cross-sectional view of Chinese and foreign heating equipment.

[0041] Figure 7 This is a three-dimensional exploded view of an external heating device according to one embodiment of the present invention.

[0042] The annotations in the attached figures are explained as follows:

[0043] 80. Tank container; 11. Shell; 12. Head; 2. Internal heating equipment; 21. Outer shell; 22. Inner shell; 221. Boss; 23. First heat transfer fluid; 24. Connecting flange; 3. External heating equipment; 31. Outer shell; 32. Inner shell; 321. First shell section; 322. Second shell section; 323. Sealing plate; 324. Annular channel; 33. Second heat transfer fluid; 34. Liquid collection box. Detailed Implementation

[0044] Typical embodiments embodying the features and advantages of the present invention are described in detail in the following description. It should be understood that the present invention is capable of various variations in different embodiments without departing from the scope of the present invention, and that the descriptions and illustrations herein are intended to be illustrative rather than limiting.

[0045] To further illustrate the principles and structure of the present invention, preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0046] This invention provides a tank container 80, which can transfer heat to the vicinity of the unloading port through rapid heating, eliminating the heating dead zone of bottom discharge in traditional steam heating, allowing the material to heat up quickly and thus increasing the material's fluidity, avoiding the problem of high material viscosity and unloading blockage caused by uneven temperature at this point.

[0047] Figure 1 A structural schematic diagram of the tank container 80 is shown. Figure 2 A partial sectional view of a tank container 80 is shown, combined with... Figure 1 and Figure 2 The tank container 80 includes the tank body and a heating system.

[0048] The tank is used to load materials, where the materials refer to liquid materials. Specifically, the tank includes a cylindrical body 11 and end caps 12 located at both ends of the cylindrical body 11.

[0049] The tank bottom is provided with a discharge port and at least one connecting hole spaced apart from the discharge port. The discharge port is used to unload materials from the tank. Specifically, both the discharge port and the connecting hole are located on one of the end caps 12. In this embodiment, the discharge port is located on the end cap 12 near the cylinder 11. There are multiple connecting holes, which are arranged around the discharge port. In other embodiments, the discharge port and the connecting hole may also be located on the cylinder 11. The specific arrangement can be determined according to the actual situation.

[0050] The heating system includes an internal heating device 2. Figure 3 A schematic diagram of the internal heating device 2 is shown. Figure 4 A cross-sectional view of the internal heating device 2 is shown, in conjunction with... Figure 3 and Figure 4 The internal heating device 2 includes an outer sleeve 21, an inner sleeve 22, a first liquid absorption layer (not shown in the figure), a first heat-conducting liquid 23, and a connecting flange 24. This internal heating device 2 heats the material in the discharge port area and within the tank, thereby reducing the material's viscosity, increasing its fluidity, and allowing the material to be smoothly discharged from the discharge port, avoiding blockage and ensuring smooth discharge.

[0051] The outer sleeve 21 has an open end and an internal space. That is, one end of the outer sleeve 21 is a closed end, and the other end is an open end. Specifically, the outer sleeve 21 is made of stainless steel. In this embodiment, the outer sleeve 21 is made of 304 stainless steel. The outer sleeve 21 is integrally formed.

[0052] The inner sleeve 22 is disposed inside the outer sleeve 21. Specifically, the inner sleeve 22 and the outer sleeve 21 are coaxially arranged. The inner sleeve 22 is made of stainless steel, such as 304 stainless steel. The inner sleeve 22 is integrally formed.

[0053] One end of the inner sleeve 22 is closed, and the other end is open, and the interior is hollow. That is, one end of the inner sleeve 22 is a closed end, and the other end is an open end. A boss 221 protrudes outward from one end of the inner sleeve 22, and the boss 221 corresponds to the opening of the outer sleeve 21 and closes the opening. Specifically, the boss 221 is provided at the open end of the inner sleeve 22, that is, the boss 221 is provided at the open end of the inner sleeve 22, and the outer sleeve 21 and the inner sleeve 22 are connected through the boss 221, while the outer sleeve 21 is closed.

[0054] A space is formed between the outer periphery of the inner sleeve 22 and the inner periphery of the outer sleeve 21, creating a vacuum environment within the space. The pressure within the space is 0.01 MPa to 0.05 MPa. Furthermore, a gap exists between the closed end of the inner sleeve 22 and the closed end of the outer sleeve 21.

[0055] The inner circumference of the inner sleeve 22 is provided with an internal thread. This internal thread is used for screwing into the electric heating rod.

[0056] The first absorbent layer adheres to the inner peripheral wall of the outer sleeve 21 and the outer peripheral wall of the inner sleeve 22, and the first absorbent layer can condense liquid. Specifically, the first absorbent layer is a capillary structure formed by the inner peripheral wall of the outer sleeve 21 and the outer peripheral wall of the inner sleeve 22, an uneven structure formed by the inner peripheral wall of the outer sleeve 21 and the outer peripheral wall of the inner sleeve 22, or fibrous material attached to the inner peripheral wall of the outer sleeve 21 and the outer peripheral wall of the inner sleeve 22.

[0057] Capillary structures can be formed by sintering mixed metal or non-metal powders.

[0058] The uneven structure can be formed by processing the inner peripheral wall of the outer sleeve 21 to create a micro-nano-scale uneven structure.

[0059] The fiber material can be nylon fiber or high-temperature resistant absorbent sponge.

[0060] Since the inner peripheral wall of the outer sleeve 21 and the outer peripheral wall of the inner sleeve 22 need to be provided with a first liquid absorption layer, the inner sleeve 22 and the outer sleeve 21 are connected by welding. Specifically, the inner sleeve 22 is inserted into the outer sleeve 21 through the opening of the outer sleeve 21, and the boss 221 is connected to the inner peripheral wall of the opening of the outer sleeve 21, thereby sealing the outer sleeve 21 to form an accommodating space.

[0061] The first heat transfer fluid 23 is disposed within the accommodating space. The volume of the first heat transfer fluid 23 is 1% to 10% of the volume of the accommodating space.

[0062] The thermal conductivity of the first heat transfer fluid 23 is greater than 0.4 (W / (m·K)).

[0063] The first heat transfer fluid 23 includes one of the following: a mixed aqueous solution of dichromate, a mixed aqueous solution of permanganate, ethylene glycol, dichloromethane, distilled water, oil, ethanol, and methanol.

[0064] Specifically, a vacuum hole is provided at the closed end of the outer sleeve 21. After the inner sleeve 22 and the outer sleeve 21 are connected as a whole, the first heat-conducting liquid 23 is injected through the vacuum hole, and the accommodating space is evacuated to a negative pressure of 0.01 MPa to 0.05 MPa through the vacuum hole and then sealed. For example, the pressure in the accommodating space can be 0.03 MPa.

[0065] The connecting flange 24 is fitted around the outer periphery of the outer sleeve 21 and close to the opening. The connecting flange 24 is provided in a one-to-one correspondence with the connecting hole. The connecting flange 24 is connected to the peripheral sidewall of the corresponding connecting hole to realize the connection between the internal heating device 2 and the tank body. The outer sleeve 21 and the inner sleeve 22 extend at least partially into the tank body.

[0066] Specifically, the connecting flange 24 is a hollow cylindrical shape, with its inner peripheral wall connected to the outer peripheral wall of the outer sleeve 21, and its outer peripheral wall connected to the peripheral side wall of the connecting hole of the tank. The connecting flange 24 and the outer sleeve 21 are coaxial. In this embodiment, the closed end of the connecting flange 24, away from the outer sleeve 21, is flush with the open end of the outer sleeve 21.

[0067] The outer sleeve 21 is inclined or vertical relative to the tank body. Since the connecting flange 24 is coaxial with the outer sleeve 21 in this embodiment, the connecting flange 24 is inclined or vertical relative to the tank body.

[0068] The connecting flange 24 is partially located inside the tank and partially located outside the tank, so that the outer sleeve 21 and the inner sleeve 22 are mostly located inside the tank.

[0069] When there are multiple internal heating devices 2, they are arranged around the discharge port. That is, the connection holes are arranged around the discharge port. The multiple internal heating devices 2 can be arranged in parallel or in series, depending on the actual needs.

[0070] Preferably, in this embodiment, the dimensions of the internal heating device 2 are as follows: the thickness of the outer sleeve 21 is 0.1-4 mm, the outer diameter of the outer sleeve 21 is 5-50 mm, the length of the outer sleeve 21 is 100-600 mm, the thickness of the inner sleeve 22 is 0.1-4 mm, the distance between the inner wall of the outer sleeve 21 and the outer wall of the inner sleeve 22 is 1-10 mm, and the thickness of the connecting flange 24 is 10-40 mm.

[0071] During unloading, an electric heating rod is connected to the inner sleeve 22 through an internal thread. The electric heating rod heats the first heat-conducting liquid 23 in the containment space, causing it to rapidly vaporize into steam and fill the entire containment space. The steam quickly releases heat along the outer sleeve 21 and condenses and flows back through the action of the first liquid absorption layer. The first heat-conducting liquid 23 forms a vaporization-condensation cycle. The rapid heat release process raises the temperature of the material near the unloading port, thereby enhancing its fluidity and preventing blockage of the unloading port.

[0072] Furthermore, the heating system includes an external heating device 3. The external heating device 3 is located at the discharge port. Through the cooperation of the external heating device 3 and the internal heating device 2, the flowability of the material is better increased, and the problem of discharge port blockage is solved.

[0073] Figure 5 A schematic diagram of the external heating device 3 is shown. Figure 6 A cross-sectional view of the external heating device 3 is shown. Figure 7 An exploded three-dimensional schematic diagram of the external heating device 3 is shown, combined with... Figures 5-7 The external heating device 3 includes an outer shell 31, an inner shell 32, a liquid collection box 34, a second liquid absorption layer (not shown in the figure), and a second heat-conducting liquid 33.

[0074] The outer casing 31 includes a cylindrical body and an end plate disposed at one end thereon. A through hole is provided in the middle of the end plate.

[0075] The inner shell 32 is disposed inside the outer shell 31, and its outer periphery is connected to the inner peripheral wall of the end plate. The inner shell 32 and the outer shell 31 form an annular receiving groove.

[0076] The inner housing 32 has an annular channel 324 that communicates with the receiving groove. Specifically, the inner housing 32 includes a cylindrical first housing portion 321, a second housing portion 322 extending inward and downward from the top of the first housing portion, and a sealing plate 323 located at the bottom of the first housing portion 321 and the second housing portion 322. The second housing portion is inclined inward from top to bottom, and the first housing portion 321, the second housing portion 322, and the sealing plate 323 form the annular channel 324. In this embodiment, the second housing portion 322 is in the shape of an inverted frustum.

[0077] The inner shell 32 has a through hole running through its axis in the middle, which communicates with the discharge port. Specifically, the second shell part 322 is hollow inside to form the through hole, which is used for material to flow out. The inwardly inclined structure of the second shell part 322 from top to bottom allows the material in the tank to be transported outward along the inclined structure, increasing the smoothness of discharge.

[0078] The second liquid-absorbing layer is disposed on the inner peripheral wall of the outer shell 31, the inner peripheral wall of the annular channel 324, the inner peripheral wall of the liquid collection box 34, and the outer peripheral wall of the inner shell 32. The second liquid-absorbing layer can condense liquid. Since the second liquid-absorbing layer needs to be disposed on the inner peripheral wall of the outer shell 31 and the annular channel 324, the sealing plate 323 is welded to the first shell part 321 and the second shell part 322. Specifically, after the second liquid-absorbing layer is disposed on the first shell part 321, the second shell part 322, and the sealing plate 323, the sealing plate 323 is then connected to the bottom of the first shell part 321 and the second shell part 322 to seal the annular channel 324.

[0079] A perforation is provided on the first housing portion 321, which connects the receiving groove and the annular channel 324. The axis of the perforation extends radially along the first housing portion 321. A second liquid-absorbing layer is also provided on the inner peripheral wall of the perforation.

[0080] Specifically, the second absorbent layer is a capillary structure formed by the inner peripheral wall of the outer shell 31, the inner peripheral wall of the annular channel 324, the inner peripheral wall of the liquid collection box 34, and the outer peripheral wall of the inner shell 32; an uneven structure formed by the inner peripheral wall of the outer shell 31, the inner peripheral wall of the annular channel 324, the inner peripheral wall of the liquid collection box 34, and the outer peripheral wall of the inner shell 32; or fibrous material attached to the inner peripheral wall of the outer shell 31, the inner peripheral wall of the annular channel 324, the inner peripheral wall of the liquid collection box 34, and the outer peripheral wall of the inner shell 32.

[0081] Capillary structures can be formed by sintering mixed metal or non-metal powders.

[0082] The uneven structure can be formed by processing the inner peripheral wall of the outer shell 31, the inner peripheral wall of the annular channel 324, the inner peripheral wall of the liquid accumulation box 34, and the outer peripheral wall of the inner shell 32 to form a micro-nano-scale uneven structure.

[0083] The fiber material can be nylon fiber or high-temperature resistant absorbent sponge.

[0084] The liquid collection box 34 is disposed outside the outer shell 31 and communicates with the receiving groove. The liquid collection box 34 has a circular cross-section. Specifically, the liquid collection box 34 is a cylindrical shape with one end open and the other end closed. The outer shell 31 is provided with a through hole, and the liquid collection box 34 is inserted into the through hole, with the open end of the liquid collection box 34 facing the inner shell 32.

[0085] The second heat transfer fluid 33 is disposed in the liquid collection box 34.

[0086] The external heating device 3 is connected to the tank body, and the opening of the receiving groove is sealed to the tank body, thus sealing the receiving groove. The receiving groove, the annular channel 324, and the liquid collection box 34 constitute a closed cavity. Specifically, the end cap 12 is fixedly connected to the end of the outer shell 31 and the outer periphery of the first shell part 321, thereby achieving the sealing of the receiving groove.

[0087] The pressure of the sealed cavity is 0.01 MPa to 0.05 MPa, and the volume of the second heat transfer fluid 33 accounts for 1% to 10% of the volume of the sealed cavity.

[0088] The thermal conductivity of the second heat transfer fluid 33 is greater than 0.4 (W / (m·K)).

[0089] The second heat transfer fluid 33 includes one of the following: a mixed aqueous solution of dichromate, a mixed aqueous solution of permanganate, ethylene glycol, dichloromethane, distilled water, oil, ethanol, and methanol.

[0090] The outer casing 31 is welded to the peripheral wall of the discharge port. In this embodiment, the outer casing 31 is inclined relative to the tank, and the liquid collection box 34 is located at the bottom of the outer casing 31. In other embodiments, the outer casing 31 is vertically arranged. The liquid collection box 34 is used to hold the second heat-conducting liquid 33.

[0091] In this embodiment, the external heating device heats the liquid collection box through electromagnetic heating, steam heating, resistance heating, etc., so that the second heat-conducting liquid quickly vaporizes and fills the closed cavity. The steam rapidly releases heat and condenses near the outer shell 31. The heat release area of ​​the external heating device 3 is much larger than the heat absorption area. Therefore, the rapid heat absorption and release of the second heat-conducting liquid in the closed cavity enables the external heating device 3 and the surrounding area to heat up quickly, eliminating the heating dead zone of the traditional steam heating method and solving the problem of high material viscosity clogging the discharge port.

[0092] In this embodiment, the heating system provides dual protection through external heating device 3 and internal heating device 2, heating from both inside and outside the tank, thus better ensuring the fluidity of the material and solving the problem of blockage at the discharge port.

[0093] Although the invention has been described with reference to several typical embodiments, it should be understood that the terminology used is illustrative 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, The system includes a tank body and a heating system connected to the tank body. The bottom of the tank body is provided with a discharge port and at least one connecting hole spaced apart from the discharge port. The heating system includes at least one internal heating device, which is correspondingly arranged with the connecting hole. The internal heating device includes: The outer tube is open at one end and has internal space. An inner sleeve is disposed inside the outer sleeve; one end of the inner sleeve has a protruding boss, which corresponds to and closes the opening of the outer sleeve; there is a gap between the outer circumference of the inner sleeve and the inner circumference of the outer sleeve to form an accommodating space, which is a vacuum environment; the inner circumference of the inner sleeve is provided with an internal thread; the internal thread is used for screwing into an electric heating rod. A first absorbent layer is attached to the inner peripheral wall of the outer sleeve and the outer peripheral wall of the inner sleeve; the first absorbent layer is capable of condensing liquid; the first absorbent layer is a capillary structure formed by the inner peripheral wall of the outer sleeve and the outer peripheral wall of the inner sleeve, an uneven structure formed by the inner peripheral wall of the outer sleeve and the outer peripheral wall of the inner sleeve, or a fibrous material attached to the inner peripheral wall of the outer sleeve and the outer peripheral wall of the inner sleeve. A first heat-conducting fluid is disposed within the accommodating space; the volume of the first heat-conducting fluid is 1% to 10% of the volume of the accommodating space. A connecting flange is fitted around the outer periphery of the outer sleeve and close to the opening; the connecting flange and the connecting hole are provided in a one-to-one correspondence; the connecting flange is connected to the peripheral sidewall of the corresponding connecting hole to realize the connection between the internal heating device and the tank body, and the outer sleeve and the inner sleeve extend at least partially into the tank body; Heating the inner sleeve causes the first heat-conducting liquid in the accommodating space to be heated and rapidly vaporized into steam, filling the entire accommodating space. The steam quickly releases heat along the outer sleeve and condenses and flows back through the action of the first liquid-absorbing layer.

2. The tank container according to claim 1, characterized in that, The pressure in the accommodating space is 0.01 MPa to 0.05 MPa; the outer sleeve is inclined or vertical relative to the tank body; When there are multiple internal heating devices, the multiple internal heating devices are arranged around the discharge port; The tank body includes a cylindrical body and end caps located at opposite ends of the cylindrical body. The end caps are provided with the discharge port and the connection hole.

3. The tank container according to claim 1, characterized in that, The outer sleeve has a thickness of 0.1~4mm, an outer diameter of 5~50mm, a length of 100~600mm, an inner sleeve has a thickness of 0.1~4mm, and a distance of 1~10mm between the inner wall of the outer sleeve and the outer wall of the inner sleeve; the connecting flange has a thickness of 10~40mm.

4. The tank container according to claim 1, characterized in that, The thermal conductivity of the first heat-conducting fluid is greater than 0.4 (W / (m·K)). The first heat-conducting fluid comprises one of the following: a mixed aqueous solution of dichromate, a mixed aqueous solution of permanganate, ethylene glycol, dichloromethane, distilled water, oil, ethanol, and methanol.

5. The tank container according to claim 1, characterized in that, The heating system includes an external heating device, which is disposed at the discharge port. The external heating device includes: The outer casing includes a cylindrical body and an end plate disposed at one end thereon; a through hole is provided in the middle of the end plate; An inner shell is disposed within the outer shell, and its outer periphery is connected to the inner peripheral wall of the end plate; a through hole is provided in the middle of the inner shell through its axis, and the through hole constitutes the discharge port; an annular channel is provided inside the inner shell; a receiving groove is formed between the inner shell and the outer shell, and the annular channel communicates with the receiving groove; A liquid collection box is disposed outside the outer shell and communicates with the receiving groove; The second liquid-absorbing layer is disposed on the inner peripheral wall of the outer shell, the inner peripheral wall of the annular channel, the inner peripheral wall of the liquid collection box, and the outer peripheral wall of the inner shell; the second liquid-absorbing layer is capable of condensing liquid. The second heat-conducting fluid is disposed in the liquid collection box; The external heating device is connected to the tank, and the opening of the accommodating tank is sealed by the tank. The accommodating tank, the annular channel, and the liquid collection box constitute a closed cavity, which is a vacuum environment. The volume of the second heat-conducting liquid accounts for 1% to 10% of the volume of the closed cavity.

6. The tank container according to claim 5, characterized in that, The inner shell includes a cylindrical first shell portion, a second shell portion extending inward and downward from the axial top of the first shell portion, and a sealing plate located at the axial bottom of the first shell portion and the second shell portion. The second shell portion is inclined inward from top to bottom, and the first shell portion, the second shell portion, and the sealing plate constitute the annular channel. The first housing portion has a through hole, which connects the receiving groove and the annular channel.

7. The tank container according to claim 5, characterized in that, The pressure in the sealed cavity is 0.01 MPa to 0.05 MPa; the cross-section of the liquid collection box is circular. The outer casing is inclined, and the liquid collection box is located at the bottom of the outer casing.

8. The tank container according to claim 5, characterized in that, The thermal conductivity of the second heat-conducting fluid is greater than 0.4 (W / (m·K)). The second heat-conducting fluid includes one of the following: a mixed aqueous solution of dichromate, a mixed aqueous solution of permanganate, ethylene glycol, dichloromethane, distilled water, oil, ethanol, and methanol.

9. The tank container according to claim 5, characterized in that, The second absorbent layer is a capillary structure formed by the inner peripheral wall of the outer shell, the inner peripheral wall of the annular channel, the inner peripheral wall of the liquid collection box, and the outer peripheral wall of the inner shell, an uneven structure formed by the inner peripheral wall of the annular channel and the outer peripheral wall of the inner shell, or fibrous material attached to the inner peripheral wall of the annular channel and the outer peripheral wall of the inner shell.

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