CN202992523U - Heat-insulation sleeve used for vacuum low-temperature heat-insulation pipeline - Google Patents
Heat-insulation sleeve used for vacuum low-temperature heat-insulation pipeline Download PDFInfo
- Publication number
- CN202992523U CN202992523U CN 201220612969 CN201220612969U CN202992523U CN 202992523 U CN202992523 U CN 202992523U CN 201220612969 CN201220612969 CN 201220612969 CN 201220612969 U CN201220612969 U CN 201220612969U CN 202992523 U CN202992523 U CN 202992523U
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- Prior art keywords
- heat
- welded
- tube
- shrouding
- insulation
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Abstract
The utility model discloses a heat-insulation sleeve used for a vacuum low-temperature heat-insulation pipeline. The heat-insulation sleeve is sleeved at the position where the end portion of an inner pipe is connected with the end portion of an outer pipe in a welding mode and is used for insulating heat between the inner pipe and the outer pipe. The heat-insulation sleeve comprises an inner sealing plate, an inner sleeved pipe, an intermediate sealing plate, an outer sleeved pipe and an outer sealing plate. A process that cold temperature is transmitted to the outer pipe and the atmosphere is retarded due to the fact that the cold temperature is transmitted in a turning mode through the heat-insulation sleeve, and then heat preservation effect is achieved to a certain degree.
Description
Technical field
The utility model structure relates to a kind of vacuum and low temperature pipeline welding end collet, in particular for low temperature gas station transmission cryogenic liquide with a kind of vacuum and low temperature pipeline collet.
Background technique
The liquefied gas at low temp such as liquid oxygen, liquid nitrogen and LNG Liquefied natural gas are mainly carried by vacuum low-temperature heat insulation tube, in the process that long distance is carried, restriction due to tube length, needs employing inner tube is welded to connect to reach the connection between pipeline, but the length of outer tube is conditional, can't realize that the whole piece pipeline is the heat-insulation vacuum pipeline, this outer tube and another root outer tube that a Cryo Heat Insulation pipeline just occurs disconnects, the end will occur between outer tube and inner tube and be connected, be the most serious position of refrigerating loss herein.For satisfying the good cold insulation effect of having of vacuum low-temperature heat insulation tube, inside and outside pipe end connects just particularly important.In existing practice, all adopt end cap pattern (as shown in Figure 1), namely, adopt a shrouding 3 that inside and outside pipeline is connected to form an integral body between inner tube 1 and outer tube 2, in use, low temperature can be passed to rapidly outer tube-surface by ring flat-plate, thereby reduces the cold of vacuum tube inside, increases vacuum low-temperature heat insulation tube evaporation loss.
Summary of the invention
For the defective that exists in prior art, the utility model proposes a kind of vacuum and low temperature pipeline welding end collet.
a kind of vacuum and low temperature pipeline welding end collet, described collet weldering is enclosed within inner tube, the link position place of outer tube end, be used for heat insulation between inner and outer pipes, described collet comprises inner sealed board, inner sleeve, middle shrouding, outer sleeve and outer shrouding, wherein said inner sealed board one end is welded on described inner tube end wall, described inner sleeve one end is welded on the described inner sealed board the other end and along direction of described inner tube and extends in parallel, in the middle of described, an end of shrouding is welded on the other end of described inner sleeve, one end of described outer sleeve be welded on described in the middle of on the other end of shrouding and extend along another direction of described inner tube, one end of described outer shrouding is welded on the other end of described outer sleeve, and the other end of described outer shrouding is welded on described outer tube.
Cold like this temperature by collet turn several times transmit after, slowed down the process that passes to outer tube and atmosphere of cold temperature, reach the effect of certain insulation.
Description of drawings
Fig. 1 is the linkage structure of vacuum and low temperature pipeline inner and outer pipes in prior art
Fig. 2 is the structural representation that a kind of vacuum and low temperature pipeline welding end described in the utility model is used collet
Embodiment
Below in conjunction with accompanying drawing, the structure of a kind of vacuum and low temperature pipeline welding end described in the utility model with collet further illustrated.
as shown in Figure 2, a kind of vacuum and low temperature pipeline welding end collet 9, described collet 9 welderings are enclosed within inner tube 1, the link position place of outer tube 2 ends, be used for heat insulation between inner and outer pipes, described collet 9 comprises inner sealed board 4, inner sleeve 5, middle shrouding 8, outer sleeve 6 and outer shrouding 7, wherein said inner sealed board 4 one ends are welded on described inner tube 1 end wall, described inner sleeve 5 one ends are welded on described inner sealed board 4 the other ends and along 1 one directions of described inner tube and extend in parallel, in the middle of described, an end of shrouding 8 is welded on the other end of described inner sleeve 5, one end of described outer sleeve 6 be welded on described in the middle of on the other end of shrouding 8 and extend along another direction of described inner tube 1, one end of described outer shrouding 7 is welded on the other end of described outer sleeve 6, and the other end of described outer shrouding 7 is welded on described outer tube 2.
Claims (1)
1. vacuum low-temperature heat insulation tube road collet, described collet weldering is enclosed within inner tube, the link position place of outer tube end, be used for heat insulation between inner and outer pipes, described collet comprises inner sealed board, inner sleeve, middle shrouding, outer sleeve and outer shrouding, wherein said inner sealed board one end is welded on described inner tube end wall, described inner sleeve one end is welded on the described inner sealed board the other end and along direction of described inner tube and extends in parallel, in the middle of described, an end of shrouding is welded on the other end of described inner sleeve, one end of described outer sleeve be welded on described in the middle of on the other end of shrouding and extend along another direction of described inner tube, one end of described outer shrouding is welded on the other end of described outer sleeve, and the other end of described outer shrouding is welded on described outer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220612969 CN202992523U (en) | 2012-11-19 | 2012-11-19 | Heat-insulation sleeve used for vacuum low-temperature heat-insulation pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220612969 CN202992523U (en) | 2012-11-19 | 2012-11-19 | Heat-insulation sleeve used for vacuum low-temperature heat-insulation pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202992523U true CN202992523U (en) | 2013-06-12 |
Family
ID=48563702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220612969 Expired - Fee Related CN202992523U (en) | 2012-11-19 | 2012-11-19 | Heat-insulation sleeve used for vacuum low-temperature heat-insulation pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202992523U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322331A (en) * | 2013-06-28 | 2013-09-25 | 江苏深绿新能源科技有限公司 | Low-temperature vacuum pipe connector |
| CN108061243A (en) * | 2016-11-09 | 2018-05-22 | 张家港中集圣达因低温装备有限公司 | low-temperature pressure container |
-
2012
- 2012-11-19 CN CN 201220612969 patent/CN202992523U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322331A (en) * | 2013-06-28 | 2013-09-25 | 江苏深绿新能源科技有限公司 | Low-temperature vacuum pipe connector |
| CN103322331B (en) * | 2013-06-28 | 2015-02-11 | 江苏深绿新能源科技有限公司 | Low-temperature vacuum pipe connector |
| CN108061243A (en) * | 2016-11-09 | 2018-05-22 | 张家港中集圣达因低温装备有限公司 | low-temperature pressure container |
| CN108061243B (en) * | 2016-11-09 | 2023-08-18 | 张家港中集圣达因低温装备有限公司 | Low temperature pressure vessel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20161119 |