CN214008835U

CN214008835U - Cryogenic storage tank

Info

Publication number: CN214008835U
Application number: CN202023200819.2U
Authority: CN
Inventors: 张亚萍; 周小翔; 沈卫东; 张云凯; 吴霄婷
Original assignee: China International Marine Containers Group Co Ltd; CIMC Enric Investment Holdings Shenzhen Co Ltd; Nantong CIMC Energy Equipment Co Ltd
Current assignee: China International Marine Containers Group Co Ltd; CIMC Enric Investment Holdings Shenzhen Co Ltd; Nantong CIMC Energy Equipment Co Ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-08-20
Anticipated expiration: 2030-12-25

Abstract

The present disclosure provides a cryogenic storage tank comprising: the inner tank, the outer tank and at least one supporting component arranged in an interlayer between the inner tank and the outer tank; the supporting component comprises a pull belt, the pull belt is arranged along the axial direction of the copious cooling storage tank, one end of the pull belt is fixedly connected with the outer tank, and the other end of the pull belt is fixedly connected with the inner cylinder body. This disclosed cryrogenic storage tank changes the supporting component who sets up along cryrogenic storage tank axial direction into through the radial support piece with in the current cryrogenic storage tank, and the thickness and the width of the stretching strap among the supporting component are all thinner narrower than current support piece thickness, so can effectively reduce the width in intermediate layer space, and then can effectively increase the volume of inner tank, have solved among the prior art because of the big volumetric technical problem of inner tank that has compressed of support piece thickness.

Description

Cryogenic storage tank

Technical Field

The disclosure relates to the field of petroleum and chemical equipment, in particular to a cryogenic storage tank.

Background

At present, cryogenic storage tank in the market adopts a plurality of radial support piece and head support piece for guaranteeing the support of inner tank in all directions, can be including the intermediate layer between the outer jar to guarantee that the storage tank can not make relative displacement and structural deformation take place between inner tank and the outer jar because of bumping in operation, and the inner tank is because of filling cold-shrink behind the cryogenic liquids and the phenomenon of breaking support and pipeline. In order to ensure the heat insulation effect of the storage tank, the radial support piece is mostly made of glass fiber reinforced plastics.

However, the radial support part in the structure has larger thickness, so that the width of the interlayer space is larger, and the volume of the inner tank is compressed.

Disclosure of Invention

An object of this disclosure is to solve among the prior art support piece thickness great, lead to the intermediate layer space width great, compressed the technical problem of the volume of inner tank.

In order to solve the technical problem, the following technical scheme is adopted in the disclosure:

according to an aspect of the present disclosure, the present disclosure provides a cryogenic storage tank comprising: outer jar, inner tank and at least one supporting component. The outer tank comprises an outer cylinder body and outer sealing heads arranged at two ends of the outer cylinder body; the inner tank is arranged in the outer tank, an interlayer is formed between the inner tank and the outer tank, and the inner tank comprises an inner cylinder body and inner sealing heads arranged at two ends of the inner cylinder body; the supporting component is arranged in the interlayer and comprises a pull belt, the pull belt is arranged along the axial direction of the copious cooling storage tank, one end of the pull belt is fixedly connected with the outer tank, and the other end of the pull belt is fixedly connected with the inner cylinder.

According to the technical scheme, the method has the advantages that:

in this disclosure, through the supporting component who changes the radial support piece in the cryrogenic storage tank into the axial direction setting, and supporting component includes the stretching strap, stretching strap one end is connected with interior barrel, and the other end is connected with outer barrel. Because the thickness and the width of the stretching strap in the supporting component are thinner and narrower than the thickness of the existing supporting component, the width of the interlayer space can be effectively reduced, and the volume of the inner tank can be effectively increased. The technical problem of compress the volumetric of inner tank among the prior art because of support piece thickness is big is solved.

Drawings

FIG. 1 is a schematic diagram of the structure of one embodiment of the cryogenic storage tank of the present disclosure.

FIG. 2 is a schematic diagram of another embodiment of a cryogenic storage tank of the present disclosure.

Fig. 3 is a partial enlarged view of one embodiment of fig. 1 or 2.

Fig. 4 is a partial enlarged view of one embodiment of fig. 1 or 2.

Fig. 5 is a partial enlarged view of one embodiment of fig. 1 or 2.

FIG. 6 is a schematic diagram of another embodiment of a cryogenic storage tank of the present disclosure.

FIG. 7 is an enlarged view of a portion of the embodiment of FIG. 6.

FIG. 8 is an enlarged view of a portion of the embodiment of FIG. 6.

Fig. 9 is a partial enlarged view of the alternate embodiment of fig. 6.

Fig. 10 is an enlarged view of a portion of the alternate embodiment of fig. 6.

Fig. 11 is an enlarged view of a portion of the alternate embodiment of fig. 6.

FIG. 12 is a schematic diagram of the draw tape configuration of the cryogenic tank shown in FIG. 1, FIG. 2, or FIG. 6.

FIG. 13 is a schematic diagram of the draw tape configuration of the cryogenic tank shown in FIG. 1, FIG. 2, or FIG. 6.

FIG. 14 is a schematic diagram of the draw tape configuration of the cryogenic tank shown in FIG. 1, FIG. 2, or FIG. 6.

The device comprises an outer tank 1, an inner tank 2, a supporting component 3, a seal head support 4 and an interlayer 5; the structure comprises an outer cylinder body 11, an inner side surface 111 of the outer cylinder body, an outer sealing head 12, an inner cylinder body 21, an outer side surface 211 of the inner cylinder body, an inner sealing head 22, a pull belt 31, a reinforcing box 32, a backing plate 33, a reinforcing ring 34 and an intersecting piece 35; first wing panel 311, second wing panel 312, transition twisted rib 313, main part 314, connecting part 315, transition part 316, reinforcing plate 321, reinforcing side wall 322, first connecting plate 351, second connecting plate 352.

Detailed Description

While this disclosure may be susceptible to embodiment in different forms, there is shown in the drawings and will herein be described in detail only some specific embodiments thereof with the understanding that the present description is to be considered as an exemplification of the principles of the disclosure and is not intended to limit the disclosure to that as illustrated herein.

Thus, a feature indicated in this specification will serve to explain one of the features of one embodiment of the disclosure, and not to imply that every embodiment of the disclosure must have the stated feature. Further, it should be noted that this specification describes many features. Although some features may be combined to show a possible system design, these features may also be used in other combinations not explicitly described. Thus, the combinations illustrated are not intended to be limiting unless otherwise specified.

In the embodiments shown in the drawings, directional references (such as upper, lower, left, right, front and rear) are used to explain the structure and movement of the various elements of the disclosure not absolutely, but relatively. These descriptions are appropriate when the elements are in the positions shown in the drawings. If the description of the positions of these elements changes, the indication of these directions changes accordingly.

Some embodiments of the disclosure are further elaborated below in conjunction with the drawings of the present specification. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

The present disclosure provides a cryogenic storage tank, which is disposed in various tank regions, and is used for storing various cryogenic Liquefied gases, such as Liquefied Natural Gas (LNG), liquid nitrogen, liquid oxygen, and the like.

Referring to fig. 1, 2 and 6, the cryogenic storage tank includes an outer tank 1, an inner tank 2 and a support assembly 3. The inner tank 2 is arranged in the outer tank 1, and an interlayer 5 is formed between the inner tank and the outer tank 1. Supporting component 3 is located in intermediate layer 5 between outer jar 1 and inner tank 2, and its axial direction along this cryrogenic storage tank sets up, and one end is fixed in on inner tank 2, and the other end is fixed in on outer jar 1.

Wherein, outer jar 1 includes outer barrel 11 and locates outer head 12 at outer barrel 11 both ends, and inner tank 2 includes interior barrel 21 and locates the interior head 22 at interior barrel 21 both ends. In the present disclosure, the support member 3 is connected at one end to the inner vessel 2 and at the other end to the outer cylinder 11 or the outer closure 12.

It is understood that the support assembly 3 may include only the pulling tape 31 in the present disclosure, and both ends of the pulling tape 31 are connected to the outer side of the inner tank 2 and the inner side of the outer tank 1, respectively; as shown in fig. 3, 4 and 5, the supporting member 3 may also include a pull belt 31 and connecting members disposed at two ends of the pull belt 31, wherein the connecting member at one end is welded to the outer tank 1, and the connecting member at the other end is welded to the inner cylinder 21.

Referring to fig. 1 and 2, in an embodiment of the present disclosure, the supporting member 3 includes a pulling strap 31 and connecting members disposed at two ends of the pulling strap 31, wherein the connecting member at one end is welded to the inner side surface of the outer cylinder 11, and the connecting member at the other end is welded to the outer side surface of the inner cylinder 21.

In the present embodiment, the connecting members at the two ends of the pulling belt 31 are respectively a reinforcing box 32 shown in fig. 3, a backing plate 33 shown in fig. 5, a reinforcing ring 34 shown in fig. 4, and an intersecting member 35 shown in fig. 9.

As shown in fig. 3, the reinforcing box 32 includes a reinforcing plate 321 and two reinforcing sidewalls 322 disposed on the periphery of the reinforcing plate 321, and the reinforcing sidewalls 322 extend from the reinforcing plate 321 to the inner cylinder 21 and are fixedly connected to the outer side surface of the inner cylinder 21. The side of the reinforcing plate 321 facing away from the inner cylinder 21 is fixedly connected with the pull belt 31. As shown in fig. 5, one side surface of the pad 33 is bonded and fixed to the inner surface of the outer tube 11, and the other side surface is bonded and fixed to the pull tape 31.

In this embodiment, the drawstring 31 is connected with the inner cylinder 21 through the reinforcing box 32, and the reinforcing box 32 is connected with the inner cylinder 21 through the side edge of the reinforcing side wall 322, so that the contact area between the supporting component 3 and the inner tank 2 is effectively reduced, that is, the heat transfer area between the supporting component 3 and the inner tank 2 is reduced, the heat transfer quantity of the whole supporting component 3 can be effectively reduced, and the heat insulation performance of the whole cryogenic storage tank is further improved. In order to further avoid that the support member 3 transfers excessive heat to the outer vessel 1, the pad 33, which is attached to the outer cylinder 11, may be replaced with a reinforcing box 32.

Meanwhile, it can be understood that the reinforcing box 32 in this embodiment may also be replaced by a reinforcing ring 34 as shown in fig. 4, one end of the reinforcing ring 34 is fixedly connected with the inner cylinder 21, and the other end is fixedly connected with the pull belt 31. The contact surface between the reinforcing ring 34 and the inner cylinder 21 as well as the pull belt 31 is an annular end surface, and the contact surface is the same as the side edge of the reinforcing side plate 322 of the reinforcing box 32, so that the contact area is smaller, namely the heat transfer area is smaller, the heat transfer quantity of the whole supporting assembly 3 can be effectively reduced, and the heat insulation performance of the whole cryogenic storage tank is further improved. Similarly, in order to further avoid excessive heat transfer from the support member 3 to the outer tank 1, the backing plate 33 attached to the outer cylinder 11 may be replaced by a reinforcing ring 34.

Referring to fig. 13, in an embodiment, the pull tab 31 includes a main body portion 314 and connection portions 315 disposed at two ends of the main body portion 314, and a transition portion 316 is formed between the main body portion 314 and the connection portions 315 in a slope transition manner. The width of the connecting portion 315 is larger than that of the body portion 314, and the connecting portions 315 at both ends are connected to the reinforcing box 32 fixed to the inner cylinder 21 and the pad 33 fixed to the outer cylinder 11, respectively. One end of the transition portion 316 interfaces with the main body portion 314, and the width of the transition portion 316 is equal to the width of the main body portion 314. The other end of the transition part 316 is butted with the connecting part 315 at the same end, the width of the end of the transition part 316 is equal to that of the connecting part 315, and the width of the transition part 316 is gradually increased from the main body part 314 to the connecting part 315, so that the smoothness of transition from the main body part 314 to the connecting part 315 is ensured, and the stress concentration at the connecting part is reduced. The width of the connecting part 315 of the pull belt 31 is greater than that of the main body part 314 thereof, which is beneficial to enhancing the connecting strength between the pull belt 31 and the connecting parts at the two ends and ensuring the stability of the connecting structure of the support component 3. It is understood that the pull tape 31 in the above-described embodiment may also be a pull tape 31 having an equal width everywhere as shown in fig. 12.

Referring to fig. 6, in another embodiment of the present disclosure, the supporting member 3 only includes a pulling strip 31, one end of the pulling strip 31 is welded to the outer side of the inner cylinder 21, and the other end is welded to the inner side of the outer sealing head 12.

Referring to fig. 14, in the present embodiment, the pull strap 31 includes a first wing 311, a second wing 312 perpendicular to each other, and a transition twisted rib 313 disposed between the first wing 311 and the second wing 312. The transition twisted rib 313 is formed by twisting a flat plate in a twist shape, two ends of the flat plate are perpendicular to each other, and a center line of the first wing plate 311 and a center line of the second wing plate 312, which are disposed at the two ends, are located on the same straight line.

Referring to fig. 7 and 8, the end of the first wing 311 is welded to the outer surface of the inner cylinder 21 vertically, that is, the first wing 311 is disposed along the radial direction of the inner cylinder 21. The end of the second wing plate 312 abuts the outer cap 12 and is welded to the outer cap 12.

In this embodiment, the transition twisted rib 313 between the first wing plate 311 and the second wing plate 312 can effectively avoid the dislocation and deformation caused by uneven stress between the inner tank 2 and the outer tank 1. And the contact surface of the drawstring 31 with the inner cylinder 21 and the outer tank 1 is the end of the first wing plate 311 and one side of the second wing plate 312, so the contact area is small, the heat transfer area between the support component 3 and the inner tank 2 can be reduced, the heat transfer quantity of the whole support component 3 can be effectively reduced, and the heat insulation performance of the whole cryogenic storage tank is further improved.

It should be understood that, referring to fig. 9 to 11 in combination, in another embodiment of the present disclosure, the above-mentioned pulling tape 31 and the inner cylinder 21, and the pulling tape 31 and the outer sealing head 12 may also be fixedly connected by a connecting member. The connection is an intersection 35. The intersection 35 includes a first connection plate 351 and a second connection plate 352 fillet-welded to the first connection plate 351. The fillet weld includes a vertical fillet weld and an oblique fillet weld. As shown in fig. 9 and 10, the first connecting plate 351 of one of the intersecting members 35 is welded to the inner cylinder 21, and the second connecting plate 352 is connected to the first wing 311, where the second connecting plate 352 of the intersecting member 35 is fillet welded to the first connecting plate 351. As shown in fig. 11, the first connecting plate 351 of another intersection 35 is fit-welded to the outer head 12, and the second connecting plate 352 is fit-connected to the second wing plate 312, where the second connecting plate 352 of the intersection 35 is bevel-welded to the first connecting plate 351. The intersection piece 35 can increase the connection strength between the pull belt 31 and the inner cylinder 21 and between the pull belt 31 and the outer end enclosure 12 on the premise of ensuring the heat insulation performance of the cryogenic storage tank.

It will be appreciated that in some of the embodiments described above, the number of support assemblies 3 may be plural and arranged at intervals along the circumferential direction of the cryogenic tank.

In an embodiment of the present disclosure, as shown in fig. 1, the supporting members 3 are disposed on two opposite sides of the inner cylinder 21 in pairs in the same direction, that is, the same end of each pair of pulling straps 31 is respectively connected to the outer side 221 of the same end of the inner cylinder 22 or fixedly connected to the connecting member (the reinforcing box 32 in this embodiment), and the other same end of each pair of pulling straps 31 is respectively fixedly connected to the inner side 111 of the same end of the outer tank 1 or the connecting member (the backing plate 33 in this embodiment).

In another embodiment of the present disclosure, as shown in fig. 2, the supporting members 3 are disposed on two opposite sides of the inner cylinder 21 in pairs alternately, that is, the same end of each pair of pulling straps 31 is connected to the inner side 111 of the outer can 1 and the outer side 211 of the inner cylinder 21 at the same end, and the other same end of the pulling straps 31 is connected to the outer side 211 of the inner cylinder 21 and the inner side 111 of the outer can 1 at the other same end.

It will be appreciated that when the number of support members 3 is singular, they may be arranged in the same direction or alternatively one part may be arranged to interact with another part to ensure support of the inner vessel 2.

Meanwhile, as shown in fig. 1 and 2, in some embodiments, the cryogenic storage tank further comprises a head support 4 arranged on two inner heads 22. It is located in the intermediate layer 5 between interior head 22 and outer head 12, and one end is fixed in on interior head 22, and the other end is fixed in on outer head 12, and the head supports 4 and is located the central axis of this cryrogenic storage tank to support inner tank 2 in radial direction, prevent that inner tank 2 from taking place radial displacement. When the supporting components 3 are arranged in the interlayer 5 in the same direction, the inner tank 2 can be prevented from axial displacement or circumferential torsion, and the end enclosure supports 4 are required to be arranged on the inner end enclosures 22 on the two sides to increase the support. When supporting component 3 is alternately arranged in interlayer 5 relatively, it can not only prevent inner tank 2 from axial displacement or circumferential torsion, but also prevent inner tank 2 from radial displacement, so can not set up head support 4.

In other embodiments of the present disclosure, the supporting component 3 may be disposed in an interlayer between the outer cylinder 11 and the inner cylinder 21, or in an interlayer between the outer head 12 and the inner head 22, and both ends of the supporting component are respectively connected to the outer head 12 and the inner head 22 at the same end, so as to play a better supporting role, and replace the radial supporting component and the head support at the same time.

In this disclosure, through the supporting component who changes radial support piece in the cryrogenic storage tank into the axial direction setting, and supporting component connects in the intermediate layer between interior outer tank, and supporting component includes the stretching strap, and the one end and the inner tank of stretching strap are connected, and the other end is connected with outer jar. Because the thickness and the width of the stretching strap in the supporting component are thinner and narrower than the thickness of the existing supporting component, the width of the interlayer space can be effectively reduced, and the volume of the inner tank can be effectively increased. The technical problem of compress the volumetric of inner tank among the prior art because of support piece thickness is big is solved.

Meanwhile, the width of the drawstring is smaller, so the heat transfer area between the drawstring and the inner and outer cylinders is smaller, and the heat insulation capability of the storage tank is improved. And the supporting component has strong heat insulation property, so that the wear-resistant metal material can be directly used without considering the heat conductivity of the material, and the possibility of wear of the supporting component is reduced.

While the present disclosure has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present disclosure may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims

1. A cryogenic storage tank, comprising:

the outer tank comprises an outer cylinder body and outer sealing heads arranged at two ends of the outer cylinder body;

the inner tank is arranged in the outer tank, an interlayer is formed between the inner tank and the outer tank, and the inner tank comprises an inner cylinder body and inner sealing heads arranged at two ends of the inner cylinder body;

at least one supporting component is arranged in the interlayer, the supporting component comprises a pull belt, the pull belt is arranged along the axial direction of the copious cooling storage tank, one end of the pull belt is connected with the outer tank, and the other end of the pull belt is connected with the inner cylinder body.

2. The cryogenic storage tank of claim 1, wherein the support assembly further comprises connectors at both ends of the drawstring, wherein the connectors at one end are fixedly connected to the outer tank and the connectors at the other end are fixedly connected to the inner tank.

3. The cryogenic storage tank of claim 2, wherein the draw tape is plural and is provided at intervals in a circumferential direction of the cryogenic storage tank.

4. The cryogenic storage tank of claim 3, wherein the drawstring is arranged in the same direction at the periphery of the inner barrel, the same end of the drawstring is equally divided into a lateral surface fixed connection with the same end of the inner barrel, and the other same end of the drawstring is equally divided into a medial surface fixed connection with the same end of the outer tank.

5. The cryogenic storage tank of claim 3, wherein the drawstring is arranged in the inner tank body periphery in a relative interaction manner, the same end of the drawstring is equally divided into the inner side surface of the outer tank and the outer side surface of the inner tank body which are respectively connected with the same end, and the other same end of the drawstring is equally divided into the outer side surface of the inner tank body and the inner side surface fixed connection of the outer tank body which are respectively connected with the other same end.

6. The cryogenic storage tank of claim 2, wherein the draw strap comprises a first wing, a second wing perpendicular to each other, and a transition twist rib disposed between the first wing and the second wing; the transition twisted rib is in a twisted shape, two ends of the transition twisted rib are perpendicular to each other, and the central line of the first wing plate and the central line of the second wing plate are located on the same straight line.

7. The cryogenic storage tank according to claim 2, wherein the drawstring comprises a main body portion and connecting portions arranged at two ends of the main body portion, the width of each connecting portion is larger than that of the main body portion, inclined plane transition is formed between the main body portion and the connecting portions, and the connecting portions are respectively fixedly connected with the outer side face of the inner barrel body and the inner side face of the outer tank through the connecting pieces.

8. The cryogenic storage tank of claim 2, wherein the connecting piece is a reinforcing box, the reinforcing box comprises a reinforcing plate connected with the drawstring and a reinforcing side wall arranged on the periphery of the reinforcing plate, and the reinforcing side wall is extended from the reinforcing plate to the inner barrel body or the outer barrel body and is fixedly connected with the inner barrel body or the outer barrel body.

9. The cryogenic storage tank of claim 2, wherein the connecting piece is a connecting ring, one end of the connecting ring is fixedly connected with the inner barrel or the outer barrel, and the other end of the connecting ring is fixedly connected with the pull belt.

10. The cryogenic storage tank of claim 6, wherein the connecting piece is an intersecting piece, the intersecting piece comprises a first connecting plate and a second connecting plate arranged on the first connecting plate, the first connecting plate is attached and fixedly connected to the inner cylinder or the outer tank, and the second connecting plate is attached and connected to the first wing plate or the second wing plate.