CN205350688U - Low -temperature vacuum pipeline with inside and outside compensation function - Google Patents
Low -temperature vacuum pipeline with inside and outside compensation function Download PDFInfo
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- CN205350688U CN205350688U CN201620030858.7U CN201620030858U CN205350688U CN 205350688 U CN205350688 U CN 205350688U CN 201620030858 U CN201620030858 U CN 201620030858U CN 205350688 U CN205350688 U CN 205350688U
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Abstract
The utility model discloses a low -temperature vacuum pipeline with inside and outside compensation function, including welded joint, first outer tube, first inner tube, the blanking cover, adsorb the box, the external compensation ware, the second outer tube, support, the stopper is sealed in the vacuum, the heat insulation layer, interior compensator and second inner tube, the evacuation of stopper mainly used pipeline is sealed in the vacuum, the blanking cover is arranged in loading the adsorbent and carrying out the shutoff to the pipeline at the absorption box, the adsorbent is used for adsorbing the hourglass gassing after the evacuation, maintain the high vacuum degree of pipeline, external compensation ware and interior compensator use the bellows as the major structure, the deformation that produces under the low temperature environment outer tube and inner tube compensates, the support is used for fixed inner tube, the heat insulation layer is used for reducing the heat leakage of low -temperature vacuum pipeline. The utility model is suitable for a large -scale low temperature filling system, compact structure can compensate the deformation of inside and outside pipeline, have reduced the use quantity of low -temperature vacuum pipe hose, have reduced system's cost, have improved the reliability of cryogenic liquids filling.
Description
Technical field
This utility model relates to a kind of cryogenic vacuum pipeline with interior external compensation function, belongs to cryogenic liquid technical field of transportation.
Background technology
Low-temperature vacuum multilayer thermal insulation pipeline is widely used in cryogenic engineering, the transport etc. of the cryogenic medias such as such as liquid oxygen, liquid hydrogen, liquid nitrogen, liquid argon and liquefied natural gas, it it is the important component part of low temperature liquid-way system, and be used widely in the cryogenic loading system of rocket, the liquid hydrogen cryogenic loading system of the Saturn V of the such as U.S., by liquid hydrogen hold-up vessel, liquid hydrogen transfer pipeline, various Cryogenic Filling valve, venting the forming of valve, is complicated liquid cryogen loading system.Arian's Launch Vehicle Series also uses low temp fuel as propellant, and space flight Si Ta Harry Ke Ta launching site of India also adds Cryogenic Filling facility in launch site, it is seen that low temperature vacuum thermal insulation pipeline is applied widely in aerospace system.
China's Cryogenic Filling is also in developmental stage, currently mainly use and No. three Launch Vehicle Series of the Long March, but along with China's rocket develops toward high thrust direction, required cryogenic loading system becomes increasingly complex, and this allows for only using the cryogenic vacuum pipeline of conventional structure to can not meet the requirement of complication system in the past.
Utility model content
Technology of the present utility model solves problem: overcome the deficiencies in the prior art, this utility model provides a kind of cryogenic vacuum pipeline with interior external compensation function, the change that effectively ambient temperature can be occurred compensates, and reduces the scale of system simultaneously, improves the overall security performance of system.
Technical solution of the present utility model is:
A kind of cryogenic vacuum pipeline with interior external compensation function, including welding point, first outer tube, pipe in first, blanking cover, adsorption box, External compensator, second outer tube, support, vacuum seal plug, heat insulation layer, pipe in interior compensator and second, first outer tube is provided with welding point, second outer tube is provided with vacuum seal plug, External compensator is installed between the first outer tube and the second outer tube, in first between pipe and the first outer tube, it is equipped with support between pipe and the second outer tube in second, compensator in installing between pipe in pipe and second in first, in first, pipe is provided with adsorption box, on the first outer tube, the position of corresponding adsorption box is provided with blanking cover, in first, pipe and the second outer wall of inner tube are provided with heat insulation layer.Vacuum seal plug is mainly used in pipeline evacuation, and blanking cover for filling adsorbent and pipeline being blocked in adsorption box, and adsorbent is mainly used for the leakage venting after absorption evacuation, maintains the condition of high vacuum degree of pipeline.
In above-mentioned a kind of cryogenic vacuum pipeline with interior external compensation function, interior compensator and External compensator adopt corrugated tube to be agent structure, and the deformation that inner and outer tubes are produced at low ambient temperatures compensates；Supporting and manage and outer tube in fixing, after inner tube assembly assembly welding, outer surface also needs alternately wound insulation layer, for reducing the leakage heat of cryogenic vacuum pipeline.
In above-mentioned a kind of cryogenic vacuum pipeline with interior external compensation function, adsorption box is made up of back-up ring, guard, check washer, screw bolt and nut, it is respectively mounted back-up ring in the both sides of guard, back-up ring is provided with the width of rebate groove less than absorbent particles width, guard is provided with the diameter hole less than absorbent particles diameter, being provided with the filler of adsorbent on guard, filler adopts bolts and nuts coordinate and seal with check washer.
In above-mentioned a kind of cryogenic vacuum pipeline with interior external compensation function, interior compensator and External compensator can compensate for all deformation that medium brings with ambient temperature.
This utility model compared with prior art provides the benefit that:
1, interior compensator of the present utility model and External compensator compact conformation, can compensate for the deformation of inside and outside pipeline, eliminate STRESS VARIATION, improve the reliability of charging liquid at low-temperature.
2, this utility model is applicable to large-scale low-temperature loading system, can be widely applied to the pipeline of the cryogenic liquid system such as space flight, chemical industry and builds.
3, adopt support fixing between inner and outer tubes of the present utility model, decrease the usage quantity of cryogenic vacuum pipe flexible pipe, reduce system cost.
4, vacuum seal plug of the present utility model ensure that the vacuum of vacuum chamber, has higher security performance.
5, adsorption box of the present utility model adopts the mode that bolts and nuts coordinate can effectively place adsorbent, has the function repeatedly loaded, and adsorption box back-up ring is provided with groove, increases adsorption area, improves adsorption efficiency.
Accompanying drawing explanation
Fig. 1 is this utility model structure chart
Fig. 2 is this utility model adsorption box structure chart
Fig. 3 is this utility model the first outer tube and the first inner tube structure figure
Wherein: 1 welding point；2 first outer tubes；Pipe in 3 first；4 blanking covers；5 adsorption boxes；6 External compensators；7 second outer tubes；8 support；9 vacuum seal plugs；10 heat insulation layers；Compensator in 11；Pipe in 12 second；13 back-up rings；14 guards；15 check washers；16 bolts；17 nuts
Detailed description of the invention
Illustrate with specific embodiment, this utility model to be further described below in conjunction with accompanying drawing:
As shown in figs. 1 and 3, a kind of cryogenic vacuum pipeline with interior external compensation function, including welding point 1, first outer tube 2, pipe 3 in first, blanking cover 4, adsorption box 5, External compensator 6, second outer tube 7, support 8, vacuum seal plug 9, heat insulation layer 10, pipe 12 in interior compensator 11 and second, the first outer tube 2 is provided with welding point 1, and the second outer tube 7 is provided with vacuum seal plug 9, installs External compensator 6, in first between pipe 3 and the first outer tube 2 between the first outer tube 2 and the second outer tube 7, it is equipped with support 8 between pipe 12 and the second outer tube 7 in second, compensator 11 in installing between pipe 12 in pipe 3 and second in first, in first, pipe 3 is provided with adsorption box 5, on the first outer tube 2, the position of corresponding adsorption box 5 is provided with blanking cover 4, in first, in pipe 3 and second, pipe 12 outer wall is provided with heat insulation layer 10, vacuum seal plug 9 is mainly used in pipeline evacuation, blanking cover 4 for filling adsorbent and pipeline being blocked in adsorption box 5, adsorbent is mainly used for the leakage venting after absorption evacuation, maintains the condition of high vacuum degree of pipeline.
External compensator 6 and interior compensator 11 adopt corrugated tube to be agent structure, and the deformation that pipe 12 in pipe 3, second in first outer tube the 2, second outer tube 7 and first is produced at low ambient temperatures compensates；Support 8 and be used for fixing in first in pipe 3 and second pipe 12, after inner tube assembly assembly welding, outer surface also needs alternately wound insulation layer 10, for reducing the leakage heat of cryogenic vacuum pipeline, External compensator 6 is provided with the fixing bolt of range of accommodation, it is prevented that External compensator 6 exceedes carrying scope and deforms.
As shown in Figure 2, adsorption box 5 is made up of back-up ring 13, guard 14, check washer 15, bolt 16 and nut 17, back-up ring 13 is installed in the both sides of guard 14, back-up ring 13 is provided with the width of rebate groove less than absorbent particles width, guard 14 is provided with the diameter hole less than absorbent particles diameter, guard 14 is provided with the filler of adsorbent, and filler adopts bolt 16 coordinate with nut 17 and seal with check washer 15.
Operation principle of the present utility model is:
Cryogenic media in first in pipe 3, interior compensator 11, second pipe 12 transmit, in first in pipe 3, second vacuum chamber between pipe 12 and first outer tube the 2, second outer tube 7 by vacuum seal plug 9 evacuation, realize pipeline heat insulation, reduce heat in air and leak in medium, cryogenic media is avoided to be in liquid condition, owing to the temperature of cryogenic media is non-normally low, in first, in pipe 3 and second, pipe 12 can produce shrinkage deformation, interior compensator 11 then plays compensating action, prevent from deformation from producing stress to concentrate, destroy pipeline structure；First outer tube 2 and the second outer tube 7 also can be deformed because expanding with heat and contract with cold, and this deflection is compensated by External compensator 6；Compensating action by External compensator 6 and interior compensator 11, it is ensured that pipeline structure reliability under varying environment temperature, Different hypothermia medium.
The content not being described in detail in this utility model description is known to the skilled person technology.
Claims (4)
1. a cryogenic vacuum pipeline with interior external compensation function, it is characterized in that: include welding point (1), first outer tube (2), pipe (3) in first, blanking cover (4), adsorption box (5), External compensator (6), second outer tube (7), support (8), vacuum seal plug (9), heat insulation layer (10), pipe (12) in interior compensator (11) and second, first outer tube (2) is provided with welding point (1), second outer tube (7) is provided with vacuum seal plug (9), External compensator (6) is installed between the first outer tube (2) and the second outer tube (7), in first between pipe (3) and the first outer tube (2), it is equipped with support (8) between pipe (12) and the second outer tube (7) in second, compensator (11) in installing between pipe (12) in (3) and second is managed in first, in first, pipe (3) is provided with adsorption box (5), it is provided with blanking cover (4) in the position of the upper corresponding adsorption box (5) of the first outer tube (2), in first, in pipe (3) and second, pipe (12) is provided with heat insulation layer (10).
2. a kind of cryogenic vacuum pipeline with interior external compensation function according to claim 1, it is characterised in that: the agent structure of described External compensator (6) adopts corrugated tube.
3. a kind of cryogenic vacuum pipeline with interior external compensation function according to claim 1, it is characterized in that: described adsorption box (5) is by back-up ring (13), guard (14), check washer (15), bolt (16) and nut (17) composition, back-up ring (13) is installed in the both sides of guard (14), back-up ring (13) is provided with the width of rebate groove less than absorbent particles width, guard (14) is provided with the diameter hole less than absorbent particles diameter, guard (14) is provided with the filler of adsorbent, filler adopts bolt (16) to coordinate with nut (17) and seals with check washer (15).
4. a kind of cryogenic vacuum pipeline with interior external compensation function according to claim 1, it is characterised in that: the agent structure of described interior compensator (11) adopts corrugated tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620030858.7U CN205350688U (en) | 2016-01-13 | 2016-01-13 | Low -temperature vacuum pipeline with inside and outside compensation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620030858.7U CN205350688U (en) | 2016-01-13 | 2016-01-13 | Low -temperature vacuum pipeline with inside and outside compensation function |
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| CN205350688U true CN205350688U (en) | 2016-06-29 |
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| CN201620030858.7U Active CN205350688U (en) | 2016-01-13 | 2016-01-13 | Low -temperature vacuum pipeline with inside and outside compensation function |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300430A (en) * | 2017-07-18 | 2017-10-27 | 甘肃蓝科石化高新装备股份有限公司 | A kind of vacuum heat insulating low-temperature pipe leaking heat measurement apparatus and its measuring method |
| CN109668007A (en) * | 2018-12-12 | 2019-04-23 | 陕西航天机电环境工程设计院有限责任公司 | A kind of high pressure vacuum Sandwich pipeline |
| RU2686646C1 (en) * | 2018-07-13 | 2019-04-29 | Игорь Анатольевич Мнушкин | Cryogenic pipeline |
| CN109707946A (en) * | 2018-12-12 | 2019-05-03 | 陕西航天机电环境工程设计院有限责任公司 | A kind of cryogenic piping system |
| CN110131527A (en) * | 2019-06-19 | 2019-08-16 | 成都科瑞尔低温设备有限公司 | A kind of cryogenic vacuum pipeline |
| CN110440076A (en) * | 2019-08-14 | 2019-11-12 | 北京航天发射技术研究所 | A kind of small vacuum and low temperature multi-pass pipe and preparation method thereof |
| CN110715173A (en) * | 2019-09-29 | 2020-01-21 | 西安交通大学 | Quick precooling transmission pipeline structure of low-temperature propellant |
| CN111022804A (en) * | 2019-12-26 | 2020-04-17 | 中国科学院长春光学精密机械与物理研究所 | Low vacuum protection and monitoring device for cooling circulation system in X-ray vacuum equipment |
| CN112282968A (en) * | 2020-10-09 | 2021-01-29 | 北京宇航系统工程研究所 | Low-temperature common-bottom storage tank for conveying propellant in inner |
| CN113389656A (en) * | 2021-04-25 | 2021-09-14 | 北京航天发射技术研究所 | Low-temperature vacuum filter |
| CN114370557A (en) * | 2022-02-07 | 2022-04-19 | 北京航天雷特机电工程有限公司 | Sandwich vacuum heat-insulating pipe |
-
2016
- 2016-01-13 CN CN201620030858.7U patent/CN205350688U/en active Active
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300430A (en) * | 2017-07-18 | 2017-10-27 | 甘肃蓝科石化高新装备股份有限公司 | A kind of vacuum heat insulating low-temperature pipe leaking heat measurement apparatus and its measuring method |
| RU2686646C1 (en) * | 2018-07-13 | 2019-04-29 | Игорь Анатольевич Мнушкин | Cryogenic pipeline |
| CN109707946B (en) * | 2018-12-12 | 2022-03-01 | 陕西航天机电环境工程设计院有限责任公司 | Low-temperature pipeline system |
| CN109668007A (en) * | 2018-12-12 | 2019-04-23 | 陕西航天机电环境工程设计院有限责任公司 | A kind of high pressure vacuum Sandwich pipeline |
| CN109707946A (en) * | 2018-12-12 | 2019-05-03 | 陕西航天机电环境工程设计院有限责任公司 | A kind of cryogenic piping system |
| CN110131527A (en) * | 2019-06-19 | 2019-08-16 | 成都科瑞尔低温设备有限公司 | A kind of cryogenic vacuum pipeline |
| CN110440076A (en) * | 2019-08-14 | 2019-11-12 | 北京航天发射技术研究所 | A kind of small vacuum and low temperature multi-pass pipe and preparation method thereof |
| CN110715173A (en) * | 2019-09-29 | 2020-01-21 | 西安交通大学 | Quick precooling transmission pipeline structure of low-temperature propellant |
| CN111022804B (en) * | 2019-12-26 | 2021-04-20 | 中国科学院长春光学精密机械与物理研究所 | Low vacuum protection and monitoring device for cooling circulation system in X-ray vacuum equipment |
| CN111022804A (en) * | 2019-12-26 | 2020-04-17 | 中国科学院长春光学精密机械与物理研究所 | Low vacuum protection and monitoring device for cooling circulation system in X-ray vacuum equipment |
| CN112282968A (en) * | 2020-10-09 | 2021-01-29 | 北京宇航系统工程研究所 | Low-temperature common-bottom storage tank for conveying propellant in inner |
| CN113389656A (en) * | 2021-04-25 | 2021-09-14 | 北京航天发射技术研究所 | Low-temperature vacuum filter |
| CN114370557A (en) * | 2022-02-07 | 2022-04-19 | 北京航天雷特机电工程有限公司 | Sandwich vacuum heat-insulating pipe |
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