CN215294542U - Gas cylinder for storing cryogenic liquid - Google Patents
Gas cylinder for storing cryogenic liquid Download PDFInfo
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- CN215294542U CN215294542U CN202120207418.5U CN202120207418U CN215294542U CN 215294542 U CN215294542 U CN 215294542U CN 202120207418 U CN202120207418 U CN 202120207418U CN 215294542 U CN215294542 U CN 215294542U
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Abstract
The utility model discloses a store cryogenic liquids's gas cylinder, include: the outer cylinder and the inner cylinder are mutually supported through a front supporting structure and a rear supporting structure, the outer end of the front supporting structure is fixed on a distribution head on an outer front end socket, the inner cylinder is also provided with a liquid level sensor, an inner liquid inlet pipe, an inner liquid outlet pipe and an inner hollow pipe which are respectively communicated with corresponding connecting channels in the distribution head one by one, a reserved cover shell covering the front supporting structure is arranged on the inner wall of the inner front end socket, a reserved space is formed by matching the inner front end socket and the reserved cover shell, the reserved space is communicated with a liquid storage space of the inner cylinder through a through hole at the bottom of the reserved cover shell, the front supporting structure in the reserved space is positioned in a gas phase space in the reserved space, the inner liquid inlet pipe, the inner liquid outlet pipe and the inner hollow pipe respectively penetrate through the reserved housing and the gas phase space in the reserved space, and the outer walls of the inner liquid inlet pipe, the inner liquid outlet pipe and the inner hollow pipe are respectively sealed with the through holes in the reserved housing. The preposition of the reserved space improves the heat insulation performance of the gas cylinder.
Description
Technical Field
The utility model relates to a gas cylinder for storing cryogenic liquids such as liquefied natural gas, liquid hydrogen.
Background
The existing liquefied natural gas and liquid hydrogen gas cylinders generally adopt a double-layer structure of an outer cylinder and an inner cylinder, a vacuum interlayer is formed between the inner cylinder and the outer cylinder, and the outer cylinder comprises: outer barrel and connect outer preceding head and outer back head on outer barrel, the inner tube includes: the inner cylinder body, and an inner front end enclosure and an inner rear end enclosure which are connected on the inner cylinder body. The back bearing structure who supports between outer back head and interior back head supports each other through the preceding bearing structure who supports between outer front head and interior front head, the urceolus of gas cylinder, still is provided with inside pipeline unit and level sensor, and inside pipeline unit includes: interior feed liquor pipe, interior drain pipe and interior drain pipe, fixed distribution head that is provided with in the central through hole of head before outer, the inner of distribution head is fixed with preceding bearing structure's outer end, be provided with in the distribution head can with interior feed liquor pipe, interior drain pipe, a plurality of interface channel that interior drain pipe one-to-one is connected, the interface channel who is connected with interior drain pipe generally is located the bottom of distribution head, can dock each pipeline in the gas cylinder and the pipeline that the gas cylinder corresponds one-to-one outside through these interface channel. The inner wall of the inner rear end socket is fixedly provided with a reserved cover shell, a reserved space capable of balancing the pressure of gas in the inner cylinder is formed by the reserved cover shell and the inner rear end socket in a surrounding mode, and most of the reserved space is a gas phase space when the gas cylinder works normally. The gas cylinder with the structure has the following disadvantages: the reserved space arranged at the inner rear end socket only has the function of balancing the gas-liquid pressure in the inner cylinder, and does not play more role in the heat insulation performance of the gas cylinder.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: provided is a cryogenic liquid storage cylinder which utilizes a reserved space to improve the thermal insulation performance of the cylinder.
In order to achieve the above object, the utility model adopts the following technical scheme: a cylinder for storing cryogenic liquid, comprising: the outer cylinder comprises an outer front end enclosure, an outer cylinder body and an outer rear end enclosure which are connected with each other; the inner cylinder comprises an inner front end socket, an inner cylinder body and an inner rear end socket which are connected with each other; a vacuum interlayer is arranged between the inner cylinder and the outer cylinder; the inner cylinder and the outer cylinder of the gas cylinder are mutually supported through a front supporting structure supported between an outer front seal head and an inner front seal head and a rear supporting structure supported between an outer rear seal head and an inner rear seal head, a distribution head is fixedly arranged on the outer front seal head, the outer end of the front supporting structure is fixed on the distribution head, and a plurality of mutually independent connecting channels are arranged in the distribution head; the inner liquid inlet pipe, the inner liquid outlet pipe and the inner hollow pipe are respectively connected with corresponding connecting channels in the distribution head in a one-to-one correspondence mode, a reserved housing covering the front supporting structure is arranged on the inner wall of the inner front housing head, a reserved space is formed between the inner front housing head and the reserved housing in a matched mode, the reserved space is communicated with a liquid storage space of the inner barrel through a through hole in the bottom of the reserved housing, a front supporting structure in the reserved space is located in a gas phase space in the reserved space, the inner liquid inlet pipe, the inner liquid outlet pipe and the inner hollow pipe uniformly penetrate through the reserved housing and the gas phase space in the reserved space, and the outer walls of the inner liquid inlet pipe, the inner liquid outlet pipe and the inner hollow pipe are respectively sealed with the through holes in the reserved housing.
Further, the foregoing gas cylinder for storing cryogenic liquid, wherein: the inner liquid inlet pipe, the inner liquid outlet pipe and the inner hollow pipe are respectively provided with a U-shaped or V-shaped bending part which is bent downwards, and part of pipe bodies in the U-shaped or V-shaped bending parts are positioned in the reserved space.
Further, the foregoing gas cylinder for storing cryogenic liquid, wherein: and a rear heat insulation cover covering the rear supporting structure is arranged on the inner wall of the inner rear end socket, a heat insulation space is formed between the inner wall of the rear heat insulation cover and the inner rear end socket, and the heat insulation space is communicated with the vacuum interlayer.
Further, the foregoing gas cylinder for storing cryogenic liquid, wherein: and a heat preservation and insulation layer is arranged on the inner wall of the rear heat shield.
Further, the foregoing gas cylinder for storing cryogenic liquid, wherein: the inner wall of the inner front end socket in the reserved space is provided with a front heat insulation cover covering the front supporting structure, a heat insulation space is formed between the inner wall of the front heat insulation cover and the inner front end socket, and the heat insulation space is communicated with the vacuum interlayer.
Further, the foregoing gas cylinder for storing cryogenic liquid, wherein: the inner wall of the front heat shield is provided with a heat preservation and insulation layer.
The utility model has the advantages that: the reserved space is arranged at the inner front seal head, and the front support structure, the inner liquid inlet pipe, the inner liquid outlet pipe and the inner emptying pipe in the reserved space are all arranged in the gas phase space in the reserved space, so that the heat conductivity of external heat transferred to low-temperature liquid through the front support structure, the inner liquid inlet pipe, the inner liquid outlet pipe and the inner emptying pipe can be reduced, and the heat insulation performance of the gas cylinder for storing the low-temperature liquid is improved.
Drawings
Fig. 1 is a schematic structural diagram of a gas cylinder for storing cryogenic liquid according to the present invention.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and preferred embodiments.
As shown in fig. 1, a gas cylinder for storing cryogenic liquid includes: the outer cylinder 1 comprises an outer front end enclosure 12, an outer cylinder body 11 and an outer rear end enclosure 13 which are connected with each other; the inner cylinder 2 comprises an inner front end socket 22, an inner cylinder body 21 and an inner rear end socket 23 which are connected with each other; a vacuum interlayer 15 is arranged between the inner cylinder 2 and the outer cylinder 1; the inner cylinder and the outer cylinder of the gas cylinder are mutually supported by a front supporting structure 31 supported between an outer front seal head 12 and an inner front seal head 22 and a rear supporting structure 32 supported between an outer rear seal head 13 and an inner rear seal head 23, a distribution head 4 is fixedly arranged on the outer front seal head 12, the outer end of the front supporting structure 31 is fixed on the distribution head 4 on the outer front seal head 12, and a plurality of mutually independent connecting channels are arranged in the distribution head 4; the liquid level sensor 54, the inner liquid inlet pipe 51, the inner liquid outlet pipe 52 and the inner hollow pipe 53 are respectively connected with corresponding connecting channels in the distribution head 4 in a one-to-one correspondence mode, a reserved housing 6 covering the front supporting structure 31 is arranged on the inner wall of the inner front end enclosure 22, a reserved space 61 is formed by matching the inner front end enclosure 22 and the reserved housing 6, the front supporting structure 31 in the reserved space 61 is located in a gas phase space in the reserved space 61, the reserved space 61 is communicated with the liquid storage space 25 of the inner barrel 2 through a through hole in the bottom of the reserved housing 6, the inner liquid inlet pipe 51, the inner liquid outlet pipe 52 and the inner hollow pipe 53 respectively penetrate through the reserved housing 6 and the gas phase space in the reserved space 61, and the outer walls of the inner liquid inlet pipe 51, the inner liquid outlet pipe 52 and the inner hollow pipe 53 are respectively sealed with the through hole in the reserved housing 6. In the present embodiment, the provision of the headspace 61 at the inner header 22 serves to: the front supporting structure 31, the inner liquid inlet pipe 51, the inner liquid outlet pipe 52 and the inner hollow pipe 53 in the reserved space 61 are all arranged in the gas phase space in the reserved space 61, so that the heat conductivity of external heat transferred to low-temperature liquid through the front supporting structure 31, the inner liquid inlet pipe 51, the inner liquid outlet pipe 52 and the inner hollow pipe 53 can be reduced, and the heat insulation performance of the gas cylinder is improved.
In this embodiment, a "U" shaped bent portion bent downward is provided on each of the inner liquid inlet pipe 51 and the inner hollow pipe 53, a "V" shaped bent portion is provided on the inner liquid outlet pipe 52, and a part of the "U" shaped or "V" shaped bent portion is located in the reserved space 61. Set up the portion of bending of "U" shape or "V" shape on interior feed liquor pipe 51, interior drain pipe 52 and be used in: after the stop valves on the external pipelines outside the gas cylinder communicated with the internal liquid inlet pipe 51 and the internal liquid outlet pipe 52 are closed, since external heat can be transferred into the internal liquid inlet pipe 51 and the internal liquid outlet pipe 52 through the distribution head 4, low-temperature liquid in the external pipe body of the internal liquid inlet pipe 51 and the internal liquid outlet pipe 52 close to the distribution head 4 can be easily heated and gasified, and after the U-shaped or V-shaped bending part is arranged, a certain amount of gas can be sealed in the pipe body close to the distribution head 4 by using the U-shaped or V-shaped bending part, so that a section of gas phase space with gas sealing effect is formed in the external pipe body of the internal liquid inlet pipe 51 and the internal liquid outlet pipe 52 close to the distribution head 4, the heat conductivity of the external heat transferred to the low-temperature liquid through the internal liquid inlet pipe 51 and the internal liquid outlet pipe 52 can be reduced, and the heat insulation performance of the gas cylinder for storing the low-temperature liquid is improved. Set up the aim at of "U" shape portion of bending on interior blow-down pipe 53: once the cryogenic liquid in the inner cylinder 2 enters the inner hollow tube 53 from the inner end opening of the inner hollow tube 53, a gas phase space can be formed in the outer end tube body of the inner hollow tube 53 close to the distribution head 4, and the heat conductivity of the external heat transferred to the inner cylinder of the gas cylinder through the inner hollow tube 53 can be reduced.
In this embodiment, a rear heat shield 71 covering the rear support structure 32 is disposed on an inner wall of the inner rear head 23, a heat insulating space is formed between the inner wall of the rear heat shield 71 and the inner rear head 23, the heat insulating space is communicated with the vacuum interlayer 15, and a heat insulating layer 712 is disposed on the inner wall of the rear heat shield 71. The inner wall of the inner front head 22 in the reserved space 61 is provided with a front heat insulation cover 72 covering the front support structure 31, a heat insulation space is formed between the inner wall of the front heat insulation cover 72 and the inner front head 22 and is communicated with the vacuum interlayer 15, and the inner wall of the front heat insulation cover 72 is provided with a heat insulation layer 721. Because the heat insulation space in the rear heat insulation cover 71 and the heat insulation space in the front heat insulation cover 72 are both communicated with the vacuum interlayer 15, the heat insulation space in the rear heat insulation cover 71 and the heat insulation space in the front heat insulation cover 72 are both vacuum spaces, the heat conductivity of external heat transferred to low-temperature liquid through the front support structure 31 and the rear support structure 32 is further reduced, and the heat insulation performance of the gas cylinder for storing the low-temperature liquid is improved.
The utility model has the advantages that: because the reserved space 61 is arranged at the inner front seal head 22, and the front supporting structure 31, the inner liquid inlet pipe 51, the inner liquid outlet pipe 52 and the inner hollow pipe 53 in the reserved space 61 are all arranged in the gas phase space in the reserved space 61, the heat conductivity of external heat transferred to the low-temperature liquid through the front supporting structure 31, the inner liquid inlet pipe 51, the inner liquid outlet pipe 52 and the inner hollow pipe 53 can be reduced, and the heat insulation performance of the gas cylinder for storing the low-temperature liquid is improved.
Claims (6)
1. A cylinder for storing cryogenic liquid, comprising: the outer cylinder comprises an outer front end enclosure, an outer cylinder body and an outer rear end enclosure which are connected with each other; the inner cylinder comprises an inner front end socket, an inner cylinder body and an inner rear end socket which are connected with each other; a vacuum interlayer is arranged between the inner cylinder and the outer cylinder; the inner cylinder and the outer cylinder of the gas cylinder are mutually supported through a front supporting structure supported between an outer front seal head and an inner front seal head and a rear supporting structure supported between an outer rear seal head and an inner rear seal head, a distribution head is fixedly arranged on the outer front seal head, the outer end of the front supporting structure is fixed on the distribution head, and a plurality of mutually independent connecting channels are arranged in the distribution head; still be provided with level sensor and respectively with interior feed liquor pipe, interior drain pipe and the interior hollow tube of being connected of the connecting channel one-to-one of the correspondence of correspondence in the distribution head, its characterized in that: the inner wall of the inner front end socket is provided with a reserved housing covering the front supporting structure, a reserved space is formed by matching the inner front end socket and the reserved housing, the reserved space is communicated with a liquid storage space of the inner barrel through a through hole at the bottom of the reserved housing, the front supporting structure in the reserved space is located in a gas phase space in the reserved space, the inner liquid inlet pipe, the inner liquid outlet pipe and the inner hollow pipe equally penetrate through the reserved housing and the gas phase space in the reserved space respectively, and the outer walls of the inner liquid inlet pipe, the inner liquid outlet pipe and the inner hollow pipe are sealed with the through hole in the reserved housing respectively.
2. A gas cylinder for storing cryogenic liquid according to claim 1, wherein: the inner liquid inlet pipe, the inner liquid outlet pipe and the inner hollow pipe are respectively provided with a U-shaped or V-shaped bending part which is bent downwards, and part of pipe bodies in the U-shaped or V-shaped bending parts are positioned in the reserved space.
3. A cylinder for storing cryogenic liquid according to claim 1 or 2, wherein: and a rear heat insulation cover covering the rear supporting structure is arranged on the inner wall of the inner rear end socket, a heat insulation space is formed between the inner wall of the rear heat insulation cover and the inner rear end socket, and the heat insulation space is communicated with the vacuum interlayer.
4. A cylinder for storing cryogenic liquid according to claim 3, wherein: and a heat preservation and insulation layer is arranged on the inner wall of the rear heat shield.
5. A cylinder for storing cryogenic liquid according to claim 1 or 2, wherein: the inner wall of the inner front end socket in the reserved space is provided with a front heat insulation cover covering the front supporting structure, a heat insulation space is formed between the inner wall of the front heat insulation cover and the inner front end socket, and the heat insulation space is communicated with the vacuum interlayer.
6. A cylinder for storing cryogenic liquid according to claim 5, wherein: the inner wall of the front heat shield is provided with a heat preservation and insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120207418.5U CN215294542U (en) | 2021-01-26 | 2021-01-26 | Gas cylinder for storing cryogenic liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120207418.5U CN215294542U (en) | 2021-01-26 | 2021-01-26 | Gas cylinder for storing cryogenic liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215294542U true CN215294542U (en) | 2021-12-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120207418.5U Active CN215294542U (en) | 2021-01-26 | 2021-01-26 | Gas cylinder for storing cryogenic liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215294542U (en) |
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2021
- 2021-01-26 CN CN202120207418.5U patent/CN215294542U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230927 Address after: 215600 Fuxin (morning) road 19, Yang Shi Town, Zhangjiagang City, Suzhou, Jiangsu. Patentee after: Zhangjiagang Furui New Energy Technology Co.,Ltd. Address before: 215600 Zhangjiagang Furui Cryogenic Technology Co., Ltd., 19 Fuxin (Chenxin) road, yangshe Town, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee before: ZHANGJIAGANG FURUI CRYOGENIC TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |