CN117775525A - Large-volume heating insulation tank - Google Patents

Abstract

The invention discloses a large-volume heating insulation tank, which comprises a frame, a tank body, a heating assembly and an insulation assembly, wherein the frame is provided with a plurality of heating pipes; the frame comprises a front end frame, a rear end frame, an upper side beam and a lower side beam; the tank body comprises a cylinder body and a sealing head; the heating component comprises a plurality of annular heating pipes and longitudinal heating pipes which are welded on the outer wall of the lower part of the tank body, and the annular heating pipes are communicated with the longitudinal heating pipes and are provided with an air inlet pipe and an air outlet pipe; the heat preservation component comprises a seal head heat preservation layer and a seal head heat preservation plate which cover the seal head, and a cylinder heat preservation layer and a cylinder heat preservation plate which wrap the cylinder. The invention can increase the volume of the tank and reduce the weight of the tank, ensure the effective heating area, remarkably improve the heat insulation performance of the tank and improve the universality and the economy of the tank.

Description

Large-volume heating insulation tank

Technical Field

The invention relates to a large-volume heating insulation tank.

Background

The container is used as a transportation mode of bulk cargos, can organize joint transportation among different transportation modes and develop door-to-door transportation, accelerates turnover of vehicles and vessels, accelerates arrival of cargos, and improves whole-course transportation efficiency of cargos.

At present, non-dangerous goods media such as marine fuel oil, edible oil, 1, 4-butanediol and the like which need to be heated and transported can be transported through a tank container. According to investigation and user feedback, for the non-dangerous goods liquid medium to be heated, mainly adopting T11 dangerous goods tank container and 28m ³ 、29m ³ Is a non-hazardous material tank container. Most of the existing heating insulation tank boxes are T11 tank boxes with the volume of 24m ³ 、25m ³ 、26m ³ . T11 belongs to dangerous goods tank container regulated by IMDG, and has high requirements on tank wall thickness, frame structure and the like, so that the self weight of the container is large, and the volume is small. Therefore, the economy of transporting non-hazardous materials with such tanks is poor. The existing tank container has the following defects:

the tank volume is not large enough. The total weight of the 1CC tank is 30.48t and 35t, and when the density of the medium used for filling is smaller, the tank with smaller volume has poorer economy.

The frame is of great weight. Through static strength simulation calculation, the existing frame strength is larger in margin, and the selected profile is higher in specification, so that the dead weight of the profile is larger.

The heating pipe has a complex structure, large welding deformation and large assembling difficulty. The existing heating pipes are mostly of bottom longitudinal calandria structures, mostly of 12 channels, and therefore sufficient effective heating area and actual heating area are guaranteed. However, in the manufacturing process, because of the large number of heating pipes, the deformation after welding is large, and the internal stress level of the tank body and the heating pipes is high, so that certain hidden danger exists.

The heat preservation performance is poor. The existing heat preservation structure adopts metal support, is externally provided with a circumferential glass fiber reinforced plastic shell, heat preservation materials are paved inside the glass fiber reinforced plastic shell, and the glass fiber reinforced plastic shell is connected with the metal support through circumferential rivets and the tank body. The metal support adopted by the structure forms a plurality of metal heat bridges between the tank body and the shell, and the heat insulation performance of the structure is poor because the metal has better heat conduction.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a large-volume heating insulation tank, which solves the problems of poor economy, insufficient tank volume, heavy frame self weight, complex heating pipe structure, large welding deformation, large assembly difficulty, poor insulation performance and the like when the conventional tank container is used for loading common goods.

In order to solve the technical problems, the invention adopts the following technical scheme:

a large-volume heating insulation tank comprises a frame, a tank body, a heating assembly and an insulation assembly;

the frame comprises a front end frame, a rear end frame, an upper side beam and a lower side beam; the front end frame and the rear end frame are connected through an upper side beam and a lower side beam to form a cuboid frame integral structure;

the tank body comprises a cylinder body and an end socket; the cylinder body is butt-welded with the end sockets at the two ends, and the two ends of the tank body are respectively welded with the front end frame and the rear end frame through skirt bases;

the heating component comprises a plurality of annular heating pipes and longitudinal heating pipes which are welded on the outer wall of the lower part of the tank body, and the annular heating pipes are communicated with the longitudinal heating pipes and are provided with an air inlet pipe and an air outlet pipe;

the heat preservation assembly comprises a seal head heat preservation layer and a seal head heat preservation plate which cover the seal head, and a cylinder heat preservation layer and a cylinder heat preservation plate which wrap the cylinder.

The invention also comprises the following technical characteristics:

specifically, the front end frame, the rear end frame, the upper side beam and the lower side beam are all welded; an upper diagonal bracing and a top guard plate are welded between the front end frame and the upper side beam and between the rear end frame and the upper side beam; lower diagonal braces are welded between the front end frame and the lower side beam and between the rear end frame and the lower side beam.

Specifically, the front end frame and the rear end frame are square frame structures formed by encircling a corner post, an upper end beam, a corner post and a lower end beam in sequence, and the corner post is welded with the upper end beam and the lower end beam through corner pieces; diagonal braces are welded at four corners of the front end frame and the rear end frame; the outer sides of the front end frame and the rear end frame are respectively provided with an end ladder.

Specifically, the bottom surface of the lower end beam is reinforced by adopting an H-shaped reinforcing plate; the bottoms of the two ends of the lower end beam are provided with openings, and the openings are reinforced by adopting groove-shaped reinforcing plates with downward openings; the side wall of the corner post is provided with a post patch; the middle of the upper surface of the lower end beam of the rear end frame is provided with a notch, and the notch is reinforced by an integral reinforcing plate.

Specifically, a manhole is arranged at the top of the tank body, an inner ladder and a liquid level meter which are communicated with the tank body are arranged at the manhole, and a safety valve, an air ball valve, a gas-liquid linkage pipeline and a nitrogen charging ball valve are also arranged at the top of the tank body; the manhole, the safety valve, the air ball valve and the nitrogen charging ball valve are all arranged in the overflow box, and the overflow box is connected with the overflow pipe to the bottom of the tank body.

Specifically, a bottom discharge valve is arranged at the bottom of the rear end of the tank body, and the bottom discharge valve is sunk into the seal head by adopting a flanging flange so as to reduce the space occupied by the bottom discharge valve and increase the length and the volume of the tank body; the bottom discharge valve is provided with a bottom discharge box to provide protection for the bottom discharge valve.

Specifically, the section of the cylinder body is in a round rectangle shape so as to increase the section area of the cylinder body as much as possible, thereby increasing the volume of the tank body.

Specifically, the inner wall of the tank body is provided with a reinforcing ring with an I-shaped section, and the outer side wall and the top of the tank body are provided with longitudinal reinforcing pieces.

Specifically, the annular heating pipe comprises an annular heating pipe I, an annular heating pipe II and an annular heating pipe III; the annular heating pipe I and the annular heating pipe III are respectively arranged at two ends of the tank body, and the annular heating pipe II is adjacent to the annular heating pipe I; the annular heating pipe I, the longitudinal heating pipe positioned at the side part, the annular heating pipe III, the longitudinal heating pipe positioned at the bottom part and the annular heating pipe II are sequentially communicated; the air inlet pipe is communicated with the annular heating pipe I, the air outlet pipe is communicated with the annular heating pipe II, and a water outlet is arranged at the lowest position of the air outlet pipe.

Specifically, the seal head heat-insulating layer is attached to the shape of the seal head and covers the surface of the seal head, and the seal head heat-insulating plate covers the seal head heat-insulating layer; a plurality of heat-insulating hard supports are circumferentially distributed on the outer surface of the cylinder body to support the cylinder body heat-insulating plate, and the cylinder body heat-insulating layer is filled in a gap between the cylinder body heat-insulating plate and the cylinder body.

Compared with the prior art, the invention has the following technical effects:

the tank container specially used for common cargo transportation, designed by the invention, can reduce the self weight while increasing the volume of the tank, solves the problem of poor economy, and particularly solves the problem of poor economy when the T11 tank is used for shipping common cargo.

According to the invention, the tank body is biased, the bottom valve mounting structure is changed, the length of the tank body is increased, and the volume of the tank body is increased; through setting up jar body additional strengthening, solve the intensity, rigidity, the stability subalternation problem that arouses behind the jar body volume increase, promoted the commonality and the economic nature of jar case.

According to the invention, through static strength simulation calculation, a low-wall-thickness profile is adopted, a frame structure is optimized, the overall strength, rigidity and stability of the frame are improved, the self weight of the frame is reduced on the premise that relevant standards are met, and the single-box cargo carrying is improved.

The invention reduces the number of heating pipes, reduces the welding amount and the welding difficulty and improves the quality after welding while ensuring the actual and effective heating area.

The invention cancels the original structure with high heat conductivity such as the metal support, adopts the nonmetal support with certain heat insulation performance, effectively blocks the heat bridge, and remarkably improves the heat insulation performance of the tank.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a tank of the present invention;

FIG. 2 is a schematic diagram of the tank frame structure of the present invention;

FIG. 3 is a front end block diagram of the present invention;

FIG. 4 is a back end frame schematic of the present invention;

FIG. 5 is a front view of the can of the present invention;

FIG. 6 is a cross-sectional view of a can body A-A of the present invention;

FIG. 7 is a top view of the can of the present invention;

FIG. 8 is a schematic diagram of a warming assembly of the present invention;

FIG. 9 is a schematic view of the thermal insulation assembly of the present invention.

The meaning of each reference numeral in the figures is:

1. the device comprises a frame, a tank body, a heating assembly and a heat preservation assembly, wherein the tank body is provided with a heating assembly and a heat preservation assembly;

11. the front end frame, 12, the rear end frame, 13, the upper side beam, 14, the lower side beam, 15, the upper diagonal bracing, 16, the top guard plate and 17, the lower diagonal bracing; 111. corner posts 112, upper end beams 113, lower end beams 114, corner pieces 115, diagonal braces 116 and end ladders;

21. the device comprises a barrel body, a sealing head, a manhole, a safety valve, an air ball valve, a gas-liquid linkage pipeline, a nitrogen charging ball valve, an overflow box and a bottom discharge valve, wherein the barrel body is 22, the sealing head is 23, the manhole is 24, the safety valve is 25, the air ball valve is 26, the nitrogen charging ball valve is 27, the overflow box is 28, and the bottom discharge valve is 29; 211. reinforcing rings 212. Longitudinal stiffeners; 231. an inner ladder 232, a liquid level meter; 281. overflow tube 291. Bottom discharge box;

31. the annular heating pipe, 32, the longitudinal heating pipe, 33, the air inlet pipe, 34 and the air outlet pipe; 311. annular heating pipes I,312, annular heating pipes II,313, annular heating pipe III;341. a water outlet;

41. the heat-insulating material comprises a sealing head heat-insulating layer 42, a sealing head heat-insulating plate 43, a cylinder heat-insulating layer 44, a cylinder heat-insulating plate 45 and a heat-insulating hard support.

Detailed Description

The following specific embodiments of the present invention are provided, and it should be noted that the present invention is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical solutions of the present application fall within the protection scope of the present invention.

Example 1:

as shown in fig. 1 to 9, the present embodiment provides a large-volume heating insulation tank, comprising a frame 1, a tank 2, a heating assembly 3 and an insulation assembly 4.

The frame 1 includes a front end frame 11, a rear end frame 12, an upper side member 13, and a lower side member 14; the front end frame 11 and the rear end frame 12 are connected through an upper side beam 13 and a lower side beam 14 to form a cuboid frame integral structure; specifically, the front end frame and the rear end frame are parallel and opposite and are of square frame structures, two upper side beams are connected with the two ends of the upper parts of the front end frame and the rear end frame, and two lower side beams are connected with the two ends of the lower parts of the front end frame and the rear end frame; the upper side beam and the lower side beam are parallel to each other.

The tank body 2 comprises a cylinder 21 and a seal head 22; the cylinder 21 and the two end closure heads 22 are butt-welded, and two ends of the tank body 2 are respectively welded with the front end frame 11 and the rear end frame 12 through skirt bases.

The heating component 3 comprises a plurality of annular heating pipes 31 and longitudinal heating pipes 32 welded on the outer wall of the lower part of the tank body 2, wherein the annular heating pipes 31 and the longitudinal heating pipes 32 are communicated and are provided with an air inlet pipe 33 and an air outlet pipe 34.

The insulation assembly 4 includes a head insulation layer 41 and a head insulation plate 42 covering the head 22, and a cylinder insulation layer 43 and a cylinder insulation plate 44 wrapping the cylinder 21.

The front end frame 11, the rear end frame 12, the upper side beam 13 and the lower side beam 14 are all welded; an upper diagonal bracing 15 and a top guard plate 16 are welded between the front end frame 11 and the upper side beam 13 and between the rear end frame 12 and the upper side beam 13; a lower diagonal brace 17 is welded between the front end frame 11 and the lower side beam 14 and between the rear end frame 12 and the lower side beam 14; acting to increase the stiffness of the overall frame. The top guard plate 16 can prevent the bottom corner fittings from damaging the frame structure when stacking the containers, thereby prolonging the service life of the frame and reducing the maintenance cost.

The front end frame 11 and the rear end frame 12 are square frame structures which are sequentially surrounded by corner posts 111, upper end beams 112, corner posts 111 and lower end beams 113, and the corner posts 111, the upper end beams 112 and the lower end beams 113 are welded through corner pieces 114; diagonal braces 115 are welded at four corners of the front end frame 11 and the rear end frame 12; specifically, diagonal braces are welded between the upper end beam and the corner posts at two sides and between the lower end beam and the corner posts at two sides; the overall strength, rigidity and stability are improved. End ladders 116 are arranged on the outer side surfaces of the front end frame 11 and the rear end frame 12; specifically, all be bolted connection between end ladder upper end and the upper end roof beam, between end ladder lower extreme and the bracing of below, easily dismantle.

The bottom surface of the lower end beam 113 is reinforced by adopting an H-shaped patch, and the H-shaped patch is welded on the bottom surface, so that the self weight is reduced while the sufficient strength is provided.

The bottoms of the two ends of the lower end beam 113 are provided with openings, the openings are reinforced by adopting groove-shaped reinforcing plates with downward openings, and the groove-shaped reinforcing plates are bonded and welded at the openings so as to improve the connection strength; the lower end beam 113 is provided with openings at two ends, so that the container can be prevented from falling on the top corner fitting of the next layer of container when being stacked, impact damage to the container is avoided, the stacking efficiency of the container is improved, and the accident rate is reduced.

The side wall of the corner column 111 is provided with a column patch so as to shield the gap of the heat insulation shell while improving the bending resistance of the column and make the whole tank more attractive.

The middle part of the upper surface of the lower end beam 113 of the rear end frame 12 is provided with a gap, the gap is reinforced by adopting an integral reinforcing plate, the integral reinforcing plate is bonded and welded at the gap, the gap is the theoretical lowest part, a space as large as possible is provided for the installation of a bottom valve, the gap can effectively reduce the installation height of the bottom discharge valve, and the design tank diameter of the tank body is increased.

A manhole 23 is arranged at the top of the tank body 2, an inner ladder 231 and a liquid level meter 232 which are communicated with the tank body 2 are arranged at the manhole 23, and a safety valve 24, an air ball valve 25, a gas-liquid linkage pipeline 26 and a nitrogen charging ball valve 27 are also arranged at the top of the tank body 2; the manhole 23, the safety valve 24, the air ball valve 25 and the nitrogen charging ball valve 27 are all arranged in an overflow box 28, and the overflow box 28 is connected with an overflow pipe 281 to the bottom of the tank body 2; the overflow box not only provides a certain protection for each valve element, but also can be discharged through the overflow pipe when the medium is filled and overflows when the medium is filled; specifically, the inner ladder can climb up and down during maintenance or cleaning; the liquid level meter can directly watch the filling volume when loading and unloading the medium; the safety valve can protect the tank body in the tank transportation process, so that the pressure of the tank body is within a designed pressure-bearing range; the air ball valve is used when the medium is discharged, and protects the tank body from negative pressure; the bottom discharge valve can be opened only when the ball valve is opened, so that the tank body is protected, and the bottom discharge valve is prevented from being opened when the air ball valve is not opened by misoperation or omission, so that negative pressure is generated in the tank body; the nitrogen-filled ball valve is used when the filling medium needs nitrogen protection.

The bottom of the rear end of the tank body 2 is provided with a bottom discharge valve 29, and the bottom discharge valve 29 is submerged into the seal head 22 by adopting a flanging flange so as to reduce the space occupied by the bottom discharge valve 29 and increase the length and the volume of the tank body 2; a bottom discharge box 291 is provided at the bottom discharge valve 29 to provide protection for the bottom discharge valve 29. Specifically, through setting up the different length of skirt, set up jar body position to the front end biasing to this realization increases the rear end, and through adopting the immersed bottom valve structure: the bottom discharge valve is submerged into the sealing head by adopting the flanging flange, so that the occupied space of the bottom discharge valve is further reduced, the length of the tank body is increased, and the volume of the tank body is increased.

The cross section of the cylinder 21 is rounded rectangular to increase the cross section of the cylinder 21 as much as possible to increase the volume of the can 2.

The inner wall of the tank body 2 is provided with a reinforcing ring 211 with an I-shaped section, and the outer side wall and the top of the tank body 2 are provided with longitudinal reinforcing pieces 212, so that the strength, the rigidity and the stability of the tank body are enhanced.

In this embodiment, the sections of the circumferential heating pipe 31 and the longitudinal heating pipe 32 are both groove-shaped so as to form a closed cavity with the outer wall of the tank body 2; the groove-shaped section of the longitudinal heating pipe 32 is a trapezoid groove, and the opening size of the trapezoid groove is larger than the groove bottom size of the trapezoid groove, namely, the opening is a flaring-shaped groove, so that the number of the longitudinal heating pipes can be reduced while the heating area is met, and welding deformation of the tank body can be reduced when the tank body is welded and controlled.

Specifically, the longitudinal heating pipes 32 are longitudinally arranged along the tank 2, and a plurality of longitudinal heating pipes 32 are circumferentially spaced apart from the tank 2 at a lower portion of the tank 2. In this embodiment, there are eight longitudinal heating pipes 32, four longitudinal heating pipes 32 are located at the bottom of the tank 2, and the other four longitudinal heating pipes 32 are distributed on two sides of the tank 2.

The annular heating pipes 31 are circumferentially arranged along the tank body 2, and the annular heating pipes 31 comprise an annular heating pipe I311, an annular heating pipe II312 and an annular heating pipe III313; the annular heating pipe I311 and the annular heating pipe III313 are respectively arranged at two ends of the tank body 2, and the annular heating pipe II312 is adjacent to the annular heating pipe I311.

The annular heating pipe I311, the longitudinal heating pipe 32 positioned at the side part, the annular heating pipe III313, the longitudinal heating pipe 32 positioned at the bottom part and the annular heating pipe II312 are sequentially communicated.

The air inlet pipe 33 is communicated with the annular heating pipe I311, the air outlet pipe 34 is communicated with the annular heating pipe II312, and a water outlet 341 is arranged at the lowest part of the air outlet pipe 34.

When the tank needs to be heated, hot steam enters the annular heating pipe I from the air inlet pipe, enters the annular heating pipe III through the side longitudinal heating pipe, then enters the annular heating pipe II through the bottom longitudinal heating pipe, and finally is discharged through the air outlet pipe; when water is needed to drain, the water outlet can be opened; the plurality of annular heating pipes and the longitudinal heating pipes can bear certain pressure so as to strengthen the strength, the rigidity and the stability of the tank body.

The number of longitudinal heating pipelines is reduced while the heating area is satisfied, the welding with the tank body is reduced, and the welding deformation of the tank body is effectively controlled; the longitudinal heating pipe adopts a trapezoid groove cross-section structure, is easy to manufacture, and meets the personalized production requirement; the heating device has the advantages of reliable use, easy manufacture and capability of meeting the individual production requirements, and can heat the medium in the tank through steam.

The seal head heat preservation layer 41 is attached to the seal head 22 in shape and covers the surface of the seal head 22, and the seal head heat preservation plate 42 covers the seal head heat preservation layer 41; a plurality of heat-insulating hard supports 45 are circumferentially arranged on the outer surface of the cylinder 21 to support the cylinder heat-insulating plate 44, and the cylinder heat-insulating layer 43 is filled in a gap between the cylinder heat-insulating plate 44 and the cylinder 21.

In this embodiment, the cylinder insulation board 44 and the end socket insulation board 42 are made of glass fiber reinforced plastic, and the glass fiber reinforced plastic has small dead weight, smooth surface, corrosion resistance, good appearance and light weight.

The heat-insulating hard support 45 is made of polyurethane, and the polyurethane has good chemical stability, is non-corrosive to the stainless steel tank body, and ensures the strength of the tank body; the dead weight is small, and the light weight requirement of the product is met; the flame retardance is good, and the safety performance is improved; the heat bridge structure without steel support reduces the capacity loss and increases the overall heat insulation performance of the tank body. In other embodiments, the thermal insulation support is not limited to polyurethane hard support, but may take other forms or other structures of materials to achieve the effect of the present solution.

The cylinder heat preservation layer 43 adopts rock wool, the rock wool is low in heat conduction and flame retardant, has no corrosiveness to the stainless steel tank body, has good heat preservation effect, and ensures the overall heat preservation performance of the tank body. In other embodiments, the heat-insulating layer of the cylinder is not limited to rock wool, and other materials with better heat-insulating performance and smaller dead weight can be adopted to achieve the effect of the scheme.

In other embodiments, the large volume and light weight of the heating insulation tank can be realized in various modes, and the tank meets the static strength calculation specified by the related test and is verified by the test; the design of the large volume and light weight is not limited to the aforementioned structural form, and all the designs belong to the protection scope of the invention.

In other embodiments, the improvement of the heat insulation performance is mainly a method for reducing the heat dissipation of the tank body, so that a thermal bridge is effectively reduced or blocked; therefore, more methods can be adopted for improving the heat preservation performance, such as polyurethane filling foaming between the tank body and the heat preservation shell, vacuum structure adopted by the heat preservation layer and the like, and the heat preservation method belongs to the protection scope of the invention.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the scope of the technical concept of the present invention, and all the simple modifications belong to the protection scope of the present invention.

In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations of the invention are not described in detail in order to avoid unnecessary repetition.

Moreover, any combination of the various embodiments of the invention can be made without departing from the spirit of the invention, which should also be considered as disclosed herein.

Claims (10)

1. The large-volume heating insulation tank is characterized by comprising a frame (1), a tank body (2), a heating component (3) and an insulation component (4);

the frame (1) comprises a front end frame (11), a rear end frame (12), an upper side beam (13) and a lower side beam (14); the front end frame (11) and the rear end frame (12) are connected through an upper side beam (13) and a lower side beam (14) to form a cuboid frame integral structure;

the tank body (2) comprises a cylinder body (21) and a seal head (22); the cylinder body (21) is butt welded with the sealing heads (22) at the two ends, and the two ends of the tank body (2) are respectively welded with the front end frame (11) and the rear end frame (12) through skirt bases;

the heating assembly (3) comprises a plurality of annular heating pipes (31) and longitudinal heating pipes (32) which are welded on the outer wall of the lower part of the tank body (2), wherein the annular heating pipes (31) and the longitudinal heating pipes (32) are communicated and are provided with an air inlet pipe (33) and an air outlet pipe (34);

the heat preservation assembly (4) comprises a seal head heat preservation layer (41) and a seal head heat preservation plate (42) which cover the seal head (22), and a cylinder heat preservation layer (43) and a cylinder heat preservation plate (44) which wrap the cylinder (21).

2. The large-volume heating insulation tank according to claim 1, wherein welding is performed among the front end frame (11), the rear end frame (12), the upper side beam (13) and the lower side beam (14); an upper diagonal brace (15) and a top guard plate (16) are welded between the front end frame (11) and the upper side beam (13) and between the rear end frame (12) and the upper side beam (13); lower diagonal braces (17) are welded between the front end frame (11) and the lower side beam (14) and between the rear end frame (12) and the lower side beam (14).

3. The large-volume heating insulation tank according to claim 1, wherein the front end frame (11) and the rear end frame (12) are square frame structures formed by encircling a corner post (111), an upper end beam (112), the corner post (111) and a lower end beam (113) in sequence, and the corner post (111) is welded with the upper end beam (112) and the lower end beam (113) through corner fittings (114); diagonal braces (115) are welded at four corners of the front end frame (11) and the rear end frame (12); the outer side surfaces of the front end frame (11) and the rear end frame (12) are respectively provided with an end ladder (116).

4. A large-volume heating insulation tank as claimed in claim 3, wherein the bottom surface of the lower end beam (113) is reinforced by adopting an H-shaped reinforcing plate; the bottoms of the two ends of the lower end beam (113) are provided with openings, and the openings are reinforced by adopting groove-shaped reinforcing plates with downward openings; the side wall of the corner post (111) is provided with a post patch; the middle of the upper surface of the lower end beam (113) of the rear end frame (12) is provided with a notch, and the notch is reinforced by an integral reinforcing plate.

5. The large-volume heating insulation tank according to claim 1, wherein a manhole (23) is arranged at the top of the tank body (2), an inner ladder (231) and a liquid level meter (232) which are communicated with the tank body (2) are arranged at the manhole (23), and a safety valve (24), an air ball valve (25), a gas-liquid linkage pipeline (26) and a nitrogen filling ball valve (27) are also arranged at the top of the tank body (2); the manhole (23), the safety valve (24), the air ball valve (25) and the nitrogen charging ball valve (27) are all arranged in the overflow box (28), and the overflow box (28) is connected with the overflow pipe (281) to the bottom of the tank body (2).

6. The large-volume heating insulation tank according to claim 1, wherein a bottom discharge valve (29) is arranged at the bottom of the rear end of the tank body (2), and the bottom discharge valve (29) is submerged into the sealing head (22) by adopting a flanging flange so as to reduce the space occupied by the bottom discharge valve (29) and increase the length and the volume of the tank body (2); a bottom discharge box (291) is provided at the bottom discharge valve (29) to provide protection for the bottom discharge valve (29).

7. A bulk heating insulation can as claimed in claim 1, wherein the cross section of the barrel (21) is rounded rectangular to increase the cross section of the barrel (21) as much as possible to increase the volume of the can (2).

8. The large-volume heating insulation tank as claimed in claim 1, wherein the inner wall of the tank body (2) is provided with an I-shaped reinforcing ring (211), and the outer side wall and the top of the tank body (2) are provided with longitudinal reinforcing members (212).

9. The large-volume heating insulation tank according to claim 1, wherein the circumferential heating pipe (31) comprises a circumferential heating pipe I (311), a circumferential heating pipe II (312) and a circumferential heating pipe III (313); the annular heating pipe I (311) and the annular heating pipe III (313) are respectively arranged at two ends of the tank body (2), and the annular heating pipe II (312) is adjacent to the annular heating pipe I (311); the annular heating pipe I (311), the longitudinal heating pipe (32) positioned at the side part, the annular heating pipe III (313), the longitudinal heating pipe (32) positioned at the bottom part and the annular heating pipe II (312) are sequentially communicated; the air inlet pipe (33) is communicated with the annular heating pipe I (311), the air outlet pipe (34) is communicated with the annular heating pipe II (312), and a water outlet (341) is formed in the lowest position of the air outlet pipe (34).

10. The large-volume heating insulation tank according to claim 1, wherein the end socket insulation layer (41) is in shape fit with the end socket (22) and covers the surface of the end socket (22), and the end socket insulation plate (42) covers the end socket insulation layer (41); a plurality of heat-insulating hard supports (45) are circumferentially distributed on the outer surface of the cylinder (21) to support a cylinder heat-insulating plate (44), and a cylinder heat-insulating layer (43) is filled in a gap between the cylinder heat-insulating plate (44) and the cylinder (21).