CN212408260U

CN212408260U - Low temperature container

Info

Publication number: CN212408260U
Application number: CN202021397133.4U
Authority: CN
Inventors: 冯俊爽; 刘根仓; 汤培峰; 余永光; 钱季春; 代东亮; 卢迪; 王礼远; 范雨航
Original assignee: Zhangjiagang CIMC Sanctum Cryogenic Equipment Co Ltd
Current assignee: Zhangjiagang CIMC Sanctum Cryogenic Equipment Co Ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2021-01-26
Anticipated expiration: 2030-07-15

Abstract

The present disclosure provides a cryogenic vessel comprising: an outer tank; the inner tank is arranged in the outer tank, and a gap is formed between the inner tank and the outer tank; the interlayer pipe penetrates through the inner tank and the outer tank from the inner tank to the outside of the outer tank in a sealing way, and is fixedly connected with the inner tank and the outer tank; the fixed knot is fixed in the outer jar outside to the cover is located on the intermediate layer pipe, the fixed knot includes the shell ring and sets up in the shell ring and deviate from the fixing base of outer jar one end, the intermediate layer pipe passes the shell ring, with the fixing base centre gripping is fixed. Through the fixation of the two points, the interlayer pipe is ensured not to tilt in the filling and heat insulation process, and the technical problem that the interlayer pipe is easy to tilt when the heat insulation material is filled in the interlayer pipeline and is easy to deform so as to extend out of the outer tank in the prior art is solved.

Description

Low temperature container

Technical Field

The disclosure relates to the technical field of low-temperature storage, in particular to a low-temperature container.

Background

At present, in a conventional low-temperature container, an inner tank is made of austenitic stainless steel, an outer tank is made of low-alloy material, when an interlayer pipeline of the low-temperature container is led out from an outer end enclosure, a pipe cap, a small end enclosure or a folded plate and the like which are simple and easy to manufacture are adopted, the requirement on the positioning size of a butt joint pipe is not high, the pipe cap, the small end enclosure or the folded plate and the like are actually matched with a connecting pipe position in the manufacturing process, the pipeline is seriously deformed due to vibration, extrusion or other factors when the interlayer of the inner tank and the outer tank is filled with heat insulation materials, the phenomenon of tilting appears when the interlayer extends out from the outer tank. The requirement of high-precision positioning size of the pipeline leading-out pipe orifice by design files cannot be met.

SUMMERY OF THE UTILITY MODEL

An object of the present disclosure is to solve the technical problem in the prior art that an interlayer pipeline is easily tilted when a thermal insulation material is filled and is easily deformed, so that the interlayer pipeline extends out of an outer tank.

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

according to one aspect of the present disclosure, there is provided a cryogenic container comprising:

an outer tank;

the inner tank is arranged in the outer tank, and a gap is formed between the inner tank and the outer tank;

the interlayer pipe penetrates through the inner tank and the outer tank from the inside of the tank body to the outside of the low-temperature container in a sealing mode, and is fixedly connected with the inner tank and the outer tank;

the fixed knot is fixed in the outer jar outside to the cover is located on the intermediate layer pipe, the fixed knot includes the shell ring and sets up in the shell ring and deviates from the fixing base of outer jar one end, the intermediate layer pipe passes the fixing base, the fixing base will the intermediate layer pipe is held fixedly.

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

in the disclosure, a fixing joint is arranged outside the outer tank and sleeved on the periphery of the interlayer pipe, the fixing seat at the outward end of the fixing joint clamps and fixes the interlayer pipe, and meanwhile, the interlayer pipe is fixedly connected with the outer tank. Through the fixation of the two points, the interlayer pipe is ensured not to tilt in the filling and heat insulation process, and the technical problem that the interlayer pipe is easy to tilt when the heat insulation material is filled in the interlayer pipeline and is easy to deform so as to extend out of the outer tank in the prior art is solved.

Drawings

FIG. 1 is a block diagram of an embodiment of a cryogenic container of the present disclosure.

Fig. 2 is a partial structural view of the cryogenic container shown in fig. 1.

Fig. 3 is a structural view of the jacketed pipe of the cryogenic vessel shown in fig. 1.

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 vessel. The cryogenic container may be a storage tank, a transport tank, or other tanks for storing and transporting cryogenic media such as liquefied ethylene, liquefied natural gas, liquid nitrogen, and liquid hydrogen, and the disclosure is not limited thereto, and as long as the container can be used for storing and transporting cryogenic media, the scope of the disclosure is within the scope of protection, and here, a storage tank for storing cryogenic media is taken as an example.

Referring to fig. 1, the cryogenic vessel includes an outer vessel 10, an inner vessel 20, a jacketed pipe 30, and a fixed joint 40. The inner vessel 20 is disposed inside the outer vessel 10 with a space therebetween with respect to the outer vessel 10. The interlayer pipe 30 penetrates the inner tank 20 and the outer tank 10 from the inside of the inner tank 20 to the outside of the outer tank 10 in a sealing manner, and is fixedly connected with the inner tank 20 and the outer tank 10. The fixed joint 40 is fixed outside the outer tank 10 and sleeved on the interlayer pipe 30. The interlayer pipe 30 passes through the fixing joint 40 and is clamped and fixed with the fixing joint 40.

Wherein, the outer tank 10 comprises an outer cylinder 11 and outer sealing heads 12 arranged at two ends of the outer cylinder 11. The inner tank 20 includes an inner cylinder 21 and inner caps 22 provided at both ends of the inner cylinder 21.

It is understood that the sandwiched pipe 30 may be a straight pipe or a bent pipe. When the straight pipe is used, the straight pipe can vertically penetrate through the inner cylinder 21 and the outer cylinder 11 to the outside of the outer tank 10, and can also penetrate through the inner seal head 22 and the outer seal head 12 to the outside of the outer tank 10 along the direction parallel to the generatrix of the tank body.

When the sandwich tube 30 is an elbow, it may include a curved portion 31 at a middle section of the sandwich tube 30 and straight portions 32 at both ends of the curved portion 31.

Referring to fig. 3, the straight portion 32 includes a first straight portion 321 and a second straight portion 322, which are disposed along a direction parallel to the generatrix of the can and are not in the same straight line. The first straight portion 321 is connected to the outer head 12 in a penetrating manner, and the second straight portion 322 is connected to the inner head 22 in a penetrating manner.

The bent portion 31 may include a first bent portion 311 and a second bent portion 312. One end of the first bending portion 311 is connected to one end of the second bending portion 312 in a bent manner, the other end of the first bending portion 311 is connected to the first straight portion 321 in a bent manner, and the other end of the second bending portion 312 is connected to the second straight portion 322 in a bent manner.

It will be appreciated that the end of the sandwich pipe 30 facing the inner vessel 20 may also be provided with an inner vessel joint 34, one end of the inner vessel joint 34 sealingly penetrating the inner vessel 20 and the other end being connected to the curved portion 31 or the straight portion 32.

Referring to fig. 2, the fixing section 40 includes a cylindrical section 41 and a fixing seat 42, the cylindrical section 41 is disposed around the interlayer pipe 30, and two ends of the cylindrical section 41 are respectively fixedly connected to the outer tank 10 and the fixing seat 42. The interlayer pipe 30 passes through the cylindrical section 41 and is clamped and fixed with the fixed seat 42.

The fixing seat 42 includes a seat body 421, a cover body 422, and a sealing gasket 423, the seat body 421 is fixedly connected to the shell ring 41, and clamps and fixes the interlayer pipe 30, and a groove 4211 is formed in a surface of the seat body 421 facing away from the shell ring 41. The cover 422 is connected to a surface of the seat 421 facing away from the shell ring 41 and covers the groove 4211. The packing 423 is received in the groove 4211 to seal the groove 4211.

It can be understood that, in the embodiment shown in fig. 1, the fixing section 40 is fixed on the outer sealing head 12, and the first straight portion 321 passes through the outer sealing head 12 and then passes through the barrel section 41 to be clamped and fixed with the fixing base 42.

It is understood that the cryogenic container may further include a lead-out connector 50 disposed on the outer tank 10 and sleeved on the interlayer pipe 30. One end of which is fixedly connected with the interlayer pipe 30 and the other end of which hermetically penetrates the outer tank 10. The lead-out connector 50 includes a penetrating portion 51 and a fixing portion 52, the penetrating portion 51 sealingly penetrating the outer vessel 10. The fixing portion 52 is provided at one end of the penetrating portion 51 facing the fixing joint 40, and is connected to the sandwiched pipe 30 in a sealing manner, in this embodiment, the sealing connection is performed by full-circumference welding, and in other embodiments, a sealing ring fixing manner or the like may be used. Meanwhile, in the present embodiment, the outer edge diameter of the fixing portion 52 is smaller than the outer edge diameter of the penetrating portion 51 to ensure the welding quality between the sandwich pipe 30 and the lead joint 50.

In the above embodiment, the inner tank 20, the sandwich pipe 30, the fixing joint 40 and the lead-out joint 50 are all made of austenitic stainless steel, so as to reduce cold brittleness of related materials, improve toughness of the above components in a low temperature environment, and avoid brittle fracture of the components in the low temperature environment, thereby affecting structural strength of the low temperature container. Meanwhile, in order to ensure the connection strength and tightness, the inner tank 20 and the interlayer pipe 30, the interlayer pipe 30 and the fixed joint 40, the fixed joint 40 and the outer tank 10, the outer tank 10 and the lead-out connector 50, and the lead-out connector 50 and the interlayer pipe 30 are connected in a welding and fixing mode. To avoid leakage of the cryogenic medium and the insulating medium.

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 vessel, comprising:

an outer tank;

the interlayer pipe penetrates through the inner tank and the outer tank from the inner tank to the outside of the outer tank in a sealing way, and is fixedly connected with the inner tank and the outer tank;

the fixed knot is fixed in the outer jar outside to the cover is located on the intermediate layer pipe, the fixed knot includes the shell ring and sets up in the shell ring and deviate from the fixing base of outer jar one end, the intermediate layer pipe passes the shell ring, with the fixing base centre gripping is fixed.

2. The cryogenic vessel of claim 1, wherein the mount comprises:

the base body is fixedly connected with the shell ring and clamps and fixes the interlayer pipe, and a groove is formed in one surface of the base body, which is far away from the shell ring;

and the cover body is connected to one surface of the base body, which deviates from the shell ring, and covers the groove.

3. The cryogenic vessel of claim 2, wherein the mount further comprises:

and the sealing gasket is accommodated in the groove and seals the groove.

4. The cryogenic vessel of claim 3 wherein the sandwich tube is welded to the stationary lid.

5. The cryogenic vessel of claim 1, wherein the jacketed pipe comprises:

the bending part is arranged at the middle section of the sandwich pipe so as to bend the sandwich pipe;

straight portion, set up in the both ends of flexion, with the flexion is buckled and is connected.

6. The cryogenic container of claim 5, wherein the inner tank comprises an inner cylinder and inner end sockets disposed at two ends of the inner cylinder, the outer tank comprises an outer cylinder sleeved outside the inner cylinder and outer end sockets disposed at two ends of the outer cylinder, the outer end sockets correspond to the inner end sockets, the two straight portions respectively penetrate through the inner end sockets and the outer end sockets and are not located on the same straight line, and one end of the curved portion is connected with the other straight portion through multiple bending by the one straight portion.

7. The cryogenic vessel of claim 1 further comprising:

and the leading-out joint is arranged on the outer tank and is sleeved on the interlayer pipe, one end of the leading-out joint is fixedly connected with the interlayer pipe, and the other end of the leading-out joint penetrates through the outer tank in a sealing manner.

8. The cryogenic vessel of claim 7 wherein the outlet fitting comprises:

a penetration portion hermetically penetrating the outer can;

the fixing part is arranged at one end, facing the fixing joint, of the penetrating part and is in sealing connection with the interlayer pipe, and the diameter of the outer edge of the fixing part is smaller than that of the outer edge of the penetrating part.

9. The cryogenic vessel of claim 7 wherein the outlet joint is an austenitic joint.

10. The cryogenic vessel of claim 1 wherein an end of the jacketed pipe facing the inner vessel is provided with an inner vessel fitting that sealingly penetrates the inner vessel.