CN109668007A - A kind of high pressure vacuum Sandwich pipeline - Google Patents
A kind of high pressure vacuum Sandwich pipeline Download PDFInfo
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- CN109668007A CN109668007A CN201811519980.0A CN201811519980A CN109668007A CN 109668007 A CN109668007 A CN 109668007A CN 201811519980 A CN201811519980 A CN 201811519980A CN 109668007 A CN109668007 A CN 109668007A
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- pipe
- high pressure
- insulated
- cooling
- vacuum heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/06—Arrangements using an air layer or vacuum
- F16L59/065—Arrangements using an air layer or vacuum using vacuum
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
Abstract
The present invention relates to a kind of high pressure vacuum Sandwich pipeline, solve the problems, such as that vacuum interlayer pipeline results in waste of resources and there are security risks.It includes internal layer delivery pipe, intermediate pre-cooling pipe, external vacuum heat-insulated pipe, the first support frame, the first flexible connection component and the second flexible connection component, is provided with pre- cold medium in centre pre-cooling pipe；Internal layer delivery pipe, intermediate pre-cooling pipe, external vacuum heat-insulated pipe are set gradually from inside to outside, and coaxial, and multiple external vacuum heat-insulated pipes pass through the second flexible connection component connection by the first flexible connection component connection, multiple intermediate pre-cooling pipes；First support frame be it is multiple, the setting of multiple first support frames is provided with flowing hole between centre pre-cooling pipe and internal layer delivery pipe；The both ends of external vacuum heat-insulated pipe are provided with heat bridge, and heat bridge is multilayer coiled pipe structure；It is provided with to vacuumize on external vacuum heat-insulated pipe and connects mouth, and inner cavity is provided with molecular sieve filling chamber, for filling molecular sieve.
Description
Technical field
The present invention relates to conveyance conduits, and in particular to a kind of high pressure vacuum Sandwich pipeline.
Background technique
Vacuum interlayer pipeline is generally used for ultralow temperature medium, such as the conveying of liquid oxygen, liquid nitrogen, liquid hydrogen fluid, by medium from
Low-temperature storage tank is delivered to testing equipment, provides oxidant for test.Liquid oxygen vacuum interlayer pipeline generally divides two layers at this stage, internal layer
Circulation medium is liquid oxygen, -183 DEG C of liquid oxygen boiling temperature, to prevent cooling capacity to be transmitted in atmosphere by stainless steel pipes, not
One layer of stainless steel pipes are coated again outside rust steel conduit, are formed interlayer between two layers of pipeline, are vacuumized in interlayer, the transmitting to cooling capacity
It is thermally shielded.
When pilot system is started to work, storage tank lower valve is opened, the liquid oxygen in storage tank flows into liquid oxygen vacuum pipe, due to
Liquid oxygen vacuum pipe at this time is normal temperature state, and cryogenic media gasifies rapidly in pipeline, and flows to pipe outlet.Existing examination
Liquid oxygen (due to gasification, can be mixed) continued emissions by the process of testing with gas-liquid two-phase, until the temperature in vacuum pipe reaches
To -183 DEG C of liquid oxygen gasification critical-temperature hereinafter, liquid oxygen is all in a liquid state at this time, it can just be delivered to testing equipment and start to test, it should
Process is known as pipeline pre-cooling, and the gas-liquid two-phase medium that discharge is pre-chilled cannot be used for testing, and all emptying waste is very big, causes resource
Waste.In addition, existing liquid oxygen vacuum pipe directly uses liquid oxygen medium to be pre-chilled, a large amount of oxygen aggregation of liquid oxygen gasification discharge,
Comburant oxygen can aoxidize most of active materials, encounter combustibles and burning and risk of explosion easily occurs, so discharge areas environment
In the presence of the security risks such as burning and explosion.
Summary of the invention
Present invention aim to address existing vacuum interlayer pipelines when pipeline is pre-chilled, and will cause the wasting of resources and presence
The technical issues of security risk, provides a kind of high pressure vacuum Sandwich pipeline.
The technical scheme is that
A kind of high pressure vacuum Sandwich pipeline, including internal layer delivery pipe, intermediate pre-cooling pipe, external vacuum heat-insulated pipe, first
Support, the first flexible connection component and the second flexible connection component, intermediate be pre-chilled in pipe are provided with pre- cold medium；In described
Layer delivery pipe, intermediate pre-cooling pipe, external vacuum heat-insulated pipe are set gradually from inside to outside, and coaxial, multiple external vacuum heat-insulated pipes
By the first flexible connection component connection, multiple intermediate pre-cooling pipes pass through the second flexible connection component connection；First support
Frame be it is multiple, the setting of multiple first support frames is provided with flowing hole between centre pre-cooling pipe and internal layer delivery pipe；It is described outer
The both ends of portion's vacuum heat-insulating pipe are provided with heat bridge, and the heat bridge is multilayer coiled pipe structure；It is set on the external vacuum heat-insulated pipe
It is equipped with to vacuumize and connects mouth, and inner cavity is provided with molecular sieve filling chamber, for filling molecular sieve.
Further, it is described first flexible connection component include the first bellows, adjusting screw rod, two the second support plates and
Two the first connecting tubes；One end of first connecting tube is provided with connecting flange, and the other end is connect with external vacuum heat-insulated pipe, described
The connecting flange of two the first connecting tubes is connected by adjusting screw rod, first bellows be located at two the first connecting tubes it
Between, and be connected to two the first connecting tubes, the second support plate setting is managed, between external vacuum heat-insulated pipe in centre pre-cooling,
It is used to support external vacuum heat-insulated pipe.
Further, second support plate is nonmetallic epoxy glass reinforced plastic support ring, the appearance of second support plate
Face is evenly arranged with multiple protrusions, and inner surface is also evenly arranged with multiple protrusions.
Further, the second flexible connection component includes the second bellows, third connecting tube and two second connections
Pipe；One end of second connecting tube is provided with connecting flange, and the other end is connect with centre pre-cooling pipe, the third connecting tube
One end is fixedly connected with the flange of one of them the second connecting tube, and the other end is hanging, and second bellows is located at two second
Between connecting tube, and it is connected to two the second connecting tubes.
Further, the pre- cold medium is liquid nitrogen.
Further, the outer tube wall surface of the intermediate pre-cooling pipe is coated with flame retardant type aluminium foil composite insulation material.
Further, first support frame be sector structure, quantity be it is multiple, multiple first support frames are uniformly arranged on
Between centre pre-cooling pipe and internal layer delivery pipe.
Further, the both ends of the intermediate pre-cooling pipe are provided with outer tube, and one end of the outer tube is fixed at
On centre pre-cooling pipe.
Further, the vacuum inner cavity surface of the external vacuum heat-insulated pipe is polished to mirror surface.
Further, the internal layer delivery pipe, intermediate pipe, the external vacuum heat-insulated pipe of being pre-chilled is stainless steel tubes, and described first
Support frame is stainless steel material.
Compared with prior art, the present invention having following technical effect that
1. the intermediate pre-cooling pipe of present invention setting, from external covering liquid oxygen layer wall pipe completely, pre-cooling contact area is big, to internal layer
Delivery pipe is effectively cooled down, and is avoided using liquid oxygen cooling pipe, the effectively save energy.
2. the pre- cold medium of liquid oxygen vacuum pipe is set liquid nitrogen by the present invention, liquid nitrogen gasification is nitrogen, and nitrogen is inertia
Gas, when discharge, are highly-safe.
3. vacuum interlayer pipeline maximum working pressure provided by the invention is the high pressure liquid oxygen of 30MPa or so, medium
Flow velocity is very fast, if conventionally designing, when pre-cooling, a large amount of liquid oxygen quickly flowed away, and cannot be fully utilized, and in the present invention
With Liquid nitrogen precooler, liquid nitrogen medium uses lower pressure, such as 1MPa, flow velocity to substantially reduce, and dielectric dissipation amount obviously subtracts
It is few.
4. pre- cooling layer of the invention intermediate uses liquid nitrogen layer, -196 DEG C of liquid nitrogen boiling temperature, -183 DEG C of liquid oxygen boiling temperature,
When pre-cooling, the medium temperature used is lower, and also bigger with the temperature difference of pipeline, heat exchange is rapider, therefore, using Liquid nitrogen precooler
It is pre-chilled than liquid oxygen more efficient.
5. the present invention uses Liquid nitrogen precooler, liquid oxygen price is more slightly higher than liquid nitrogen price always, uses liquid using Liquid nitrogen precooler ratio
Oxygen pre-cooling is more economical, and long-term accumulated is got off, and can save a very big spending.
Detailed description of the invention
Fig. 1 is high pressure vacuum Sandwich pipeline structure chart of the present invention；
Fig. 2 is heat bridge structure figure of the present invention；
Fig. 3 is that the present invention first is flexibly connected assembly assumption diagram；
Fig. 4 is the second supporting plate structure figure of the invention；
Fig. 5 is that the present invention second is flexibly connected assembly assumption diagram；
Fig. 6 is the first support frame structure figure of the invention；
Fig. 7 is that high pressure vacuum Sandwich pipeline docks schematic diagram.
Appended drawing reference: 1- internal layer delivery pipe, pre-cooling pipe among 2-, 3- external vacuum heat-insulated pipe, the first support frame of 4-, 5- the
One flexible connection component, 6- second are flexibly connected component, and 7- heat bridge, 8-, which is vacuumized, connects mouth, 9- molecular sieve filling chamber, and 10- is fire-retardant
Type aluminium foil composite insulation material, 11- outer tube, the first connecting tube of 51-, the first bellows of 52-, the second support plate of 53-, 54- tune
Save screw rod, the second connecting tube of 61-, the second bellows of 62-, 63- third connecting tube.
Specific embodiment
The contents of the present invention are described in further detail below in conjunction with the drawings and specific embodiments.
For the consumption for reducing the pre- cold medium of cryogenic liquid conveyance conduit, the discharge safety of pre- cold medium, this hair are improved
It is bright that a kind of high pressure vacuum Sandwich pipeline is provided, solve the problems such as heat transfer, cold and hot compensation that medium conveys, which specifically may be used
Including internal layer 30MPa liquid oxygen layer, middle layer 1MPa liquid nitrogen layer, outer layer vacuum heat-insulating layer.Pipeline of the invention is used for wind tunnel heater
Test, test(ing) medium liquid oxygen, pre- cold medium are liquid nitrogen.
A kind of high pressure vacuum Sandwich pipeline as shown in Fig. 1 to 7, including internal layer delivery pipe 1, intermediate pre-cooling pipe 2, outside are very
Empty heat-insulated pipe 3 and the first support frame 4, centre are pre-chilled in pipe 2 and are provided with pre- cold medium；It is internal layer delivery pipe 1, intermediate pre-cooling pipe 2, outer
Portion's vacuum heat-insulating pipe 3 is set gradually from inside to outside, and coaxial, and internal layer delivery pipe 1 conveys liquid oxygen, and the pre-cooling of centre pre-cooling pipe 2 is situated between
Matter is liquid nitrogen, and external vacuum heat-insulated pipe 3 is evacuated state.The setting of first support frame 4 is in centre pre-cooling pipe 2 and internal layer delivery pipe
Between 1, it is used to support intermediate pre-cooling pipe 2, flowing hole is provided on the first support frame 4, passes through for liquid nitrogen, the first support frame 4
Specially sector structure, quantity be it is multiple, multiple first support frames 4 be uniformly arranged on intermediate pre-cooling pipe 2 and internal layer delivery pipe 1 it
Between.
The maximum working pressure 30MPa of internal layer delivery pipe 1, design pressure 33MPa, inside nominal diameter 150mm, because of bore
Greatly, pressure is high, the 06Cr19Ni10 stainless steel pipes wall thickness 28mm of selection.Pipeline outer-layer is vacuum heat-insulating layer, and cooling capacity is prevented to pass
Enter atmosphere, vacuum degree :≤2x10-3Pa, vacuum chamber glomus mosseae :≤5x10-9Pa.m3/s, each surface is thrown in vacuum chamber
Light is to mirror surface, to reduce heat radiation conduction.3 outer wall of external vacuum heat-insulated pipe does not allow frosting, external true to prevent outer tube frosting
The both ends of empty heat-insulated pipe 3 are provided with the closure of heat bridge 7, and heat bridge 7 is multilayer coiled pipe welding structure, such setting cooling capacity transmission path
It is longer, prevent medium heat from being transmitted on outer tube.
It is provided with to vacuumize on external vacuum heat-insulated pipe 3 and connects mouth 8, and inner cavity is provided with molecular sieve filling chamber 9, for filling
Molecular sieve is filled into molecular sieve filling chamber 9 after molecular sieve heat-activated, miscellaneous for discharging in adsorption plant long-term use process
Matter gas extends pipeline vacuum life.It vacuumizes and connects mouth 8 and vacuumize for connecting vacuum pump set, vacuumize and connect that mouth 8 is repeatable to be made
With after pipeline is installed in testing ground, the later period can vacuumize online.
Under low-temperature condition, internal layer delivery pipe 1, intermediate pre-cooling pipe 2 are contracted on cooling, and every mitron road shrinks about 3mm, and external true
Empty heat-insulated pipe 3 is in normal-temperature without deformation, it is therefore desirable to add bellows to be flexibly connected, compensation pipeline contracts on cooling deformation.Vacuum
Layer bellows is rod-pulling type, and double nut limit in two sides prevents bellows excess telescoping damage, specially multiple external vacuum insulation
Pipe 3 is connected by the first flexible connection component 5, and the first flexible connection component 5 includes two the first connecting tubes 51, the first bellowss
52, the second support plate 53 and adjusting screw rod 54；One end of two the first connecting tubes 51 is provided with connecting flange, the other end respectively with
The external vacuum heat-insulated pipe 3 at both ends welds, and the connecting flange of two the first connecting tubes 51 is connected by adjusting screw rod 54, first wave
Line pipe 52 is connected to one end of two the first connecting tubes 51 respectively；Pipe 2, external vacuum is pre-chilled in centre in the setting of second support plate 53
Between heat-insulated pipe 3, it is used to support external vacuum heat-insulated pipe 3.
Second support plate 53 is nonmetallic epoxy glass reinforced plastic support, and respectively there is a nonmetallic epoxy at vacuum layer bellows both ends
Glass reinforced plastic support makes external vacuum heat-insulated pipe frosting, epoxy glass to prevent cooling capacity to be transmitted on external vacuum heat-insulated pipe along support
It is both designed as three-point contact between glass bracing members and external vacuum heat-insulated pipe and intermediate pre-cooling pipe, contact area is small, reduces cold
Amount transmitting, specifically: the second support plate 53 is nonmetallic epoxy glass reinforced plastic support ring, is evenly arranged on the outside of support ring multiple
Protrusion is evenly arranged with multiple protrusions on the inside of support ring.
High-pressure bellows are high to the intensity requirement of ripple in design, this will lead to high-pressure bellows cost height, compensation rate
It is also small, add bellows in layer delivery pipe so not taking into account, and be added on intermediate pre-cooling pipeline.For theoretically, liquid nitrogen
Stainless steel tube all can be used in layer and liquid oxygen layer pipeline, and the amount of contracting on cooling is the same, but in actually pre-cooling, liquid nitrogen layer stainless steel tube
Wall thickness is thin, and Yi Lengtou, contraction distortion is fast, and liquid oxygen layer stainless steel tube wall thickness is thicker, and contraction distortion is slow, it is also desirable to carry out to deflection
Compensation.Liquid nitrogen layer bellows be it is telescopic, the first connecting tube of ripple external welding carries out radial limit to bellows, prevents bellows
Deformation of cylindrical.Specifically: multiple intermediate pre-cooling pipes 2 are connected by the second flexible connection component 6, and the second flexible connection component 6 wraps
Include two the second connecting tubes 61, the second bellows 62 and third connecting tube 63；One end of two the second connecting tubes 61 is provided with company
Acting flange, the other end are welded with the intermediate pre-cooling pipe 2 at both ends respectively, and one end of third connecting tube 63 second is connect with one of them
The flange of pipe 61 is fixedly connected, and the other end is hanging, and the second bellows 62 is connected to one end of two the second connecting tubes 61 respectively.
The outer tube wall surface cladding flame retardant type aluminium foil composite insulation material 10 of centre pre-cooling pipe 2, thickness about 10mm, further
Prevent the energy transmission between each pipe.The both ends of centre pre-cooling pipe 2 are provided with outer tube 11, one end fixed setting of outer tube 11
On centre pre-cooling pipe 2, facilitate the connection of adjacent high pressure vacuum Sandwich pipeline.
Before on-test, it will be passed through liquid nitrogen in centre pre-cooling pipe, liquid nitrogen flows through the thick-walled pipe of liquid oxygen layer, carries out to thick-walled pipe
Pre-cooling.Cooperate temperature sensor to detect pipe temperature, when temperature drops to -180 DEG C from room temperature, closes liquid nitrogen valve, Liquid nitrogen precooler
Terminate, is then passed through liquid oxygen in inner layer pipe, formally starts to test.When test, liquid nitrogen cold insulation, but tube are no longer persistently supplied
The outermost vacuum layer in road is heat-insulated, and pipe temperature is made to maintain low-temperature condition.
Claims (10)
1. a kind of high pressure vacuum Sandwich pipeline, it is characterised in that: true including internal layer delivery pipe (1), intermediate pre-cooling pipe (2), outside
Empty heat-insulated pipe (3), the first support frame (4), the first flexible connection component (5) and the second flexible connection component (6), the centre are pre-
Pre- cold medium is provided in cold pipe (2)；
The internal layer delivery pipe (1), intermediate pre-cooling pipe (2), external vacuum heat-insulated pipe (3) are set gradually from inside to outside, and coaxial,
For multiple external vacuum heat-insulated pipes (3) by the first flexible connection component (5) connection, multiple intermediate pre-cooling pipes (2) are soft by second
Property connection component (6) connect；
First support frame (4) be it is multiple, pipe (2) and internal layer delivery pipe is pre-chilled in centre in the setting of multiple first support frames (4)
(1) between, and it is provided with flowing hole；
The both ends of the external vacuum heat-insulated pipe (3) are provided with heat bridge (7), and the heat bridge (7) is multilayer coiled pipe structure；It is described
It is provided with to vacuumize on external vacuum heat-insulated pipe (3) and connect mouth (8), and inner cavity is provided with molecular sieve filling chamber (9), divide for filling
Son sieve.
2. high pressure vacuum Sandwich pipeline according to claim 1, it is characterised in that: first flexible connection component (5)
Including the first bellows (52), adjusting screw rod (54), two the second support plates (53) and two the first connecting tubes (51)；
One end of first connecting tube (51) is provided with connecting flange, and the other end is connect with external vacuum heat-insulated pipe (3), described two
The connecting flange of first connecting tube (51) is connected by adjusting screw rod (54), and first bellows (52) is located at two first companies
It takes between (51), and is connected to two the first connecting tubes (51), the second support plate (53) setting is in centre pre-cooling pipe
(2), between external vacuum heat-insulated pipe (3), external vacuum heat-insulated pipe (3) are used to support.
3. high pressure vacuum Sandwich pipeline according to claim 2, it is characterised in that: second support plate (53) is non-gold
Belong to fiber glass epoxy support ring, the outer surface of second support plate (53) is evenly arranged with multiple protrusions, and inner surface is also equal
It is even to be provided with multiple protrusions.
4. high pressure vacuum Sandwich pipeline according to claim 1, it is characterised in that: second flexible connection component (6)
Including the second bellows (62), third connecting tube (63) and two the second connecting tubes (61)；
One end of second connecting tube (61) is provided with connecting flange, and the other end is pre-chilled pipe (2) with centre and connect, the third
One end of connecting tube (63) is fixedly connected with the flange of one of them the second connecting tube (61), and the other end is hanging, second wave
Line pipe (62) is located between two the second connecting tubes (61), and is connected to two the second connecting tubes (61).
5. high pressure vacuum Sandwich pipeline according to any one of claims 1 to 4, it is characterised in that: the pre- cold medium is liquid
Nitrogen.
6. high pressure vacuum Sandwich pipeline according to claim 5, it is characterised in that: the outer tube of the intermediate pre-cooling pipe (2)
Wall surface is coated with flame retardant type aluminium foil composite insulation material (10).
7. high pressure vacuum Sandwich pipeline according to claim 6, it is characterised in that: first support frame (4) is sector
Structure, quantity be it is multiple, multiple first support frames (4) are uniformly arranged between intermediate pre-cooling pipe (2) and internal layer delivery pipe (1).
8. high pressure vacuum Sandwich pipeline according to claim 7, it is characterised in that: the both ends of the intermediate pre-cooling pipe (2)
It is provided with outer tube (11), one end of the outer tube (11) is fixed on intermediate pre-cooling pipe (2).
9. high pressure vacuum Sandwich pipeline according to claim 8, it is characterised in that: the external vacuum heat-insulated pipe (3)
Vacuum inner cavity surface is polished to mirror surface.
10. high pressure vacuum Sandwich pipeline according to claim 9, it is characterised in that: the internal layer delivery pipe (1), centre
Pre-cooling pipe (2), external vacuum heat-insulated pipe (3) are stainless steel tube, and first support frame (4) is stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811519980.0A CN109668007A (en) | 2018-12-12 | 2018-12-12 | A kind of high pressure vacuum Sandwich pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811519980.0A CN109668007A (en) | 2018-12-12 | 2018-12-12 | A kind of high pressure vacuum Sandwich pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109668007A true CN109668007A (en) | 2019-04-23 |
Family
ID=66144271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811519980.0A Pending CN109668007A (en) | 2018-12-12 | 2018-12-12 | A kind of high pressure vacuum Sandwich pipeline |
Country Status (1)
| Country | Link |
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| CN (1) | CN109668007A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107777A (en) * | 2019-05-23 | 2019-08-09 | 中国科学院理化技术研究所 | A kind of adiabatic supporting device |
| CN110715173A (en) * | 2019-09-29 | 2020-01-21 | 西安交通大学 | Quick precooling transmission pipeline structure of low-temperature propellant |
| CN112388095A (en) * | 2020-11-24 | 2021-02-23 | 合肥科烨电物理设备制造有限公司 | Steel-aluminum composite pipe brazing equipment and brazing method |
| 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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| GB1363076A (en) * | 1970-10-12 | 1974-08-14 | British Oxygen Co Ltd | Pipeline insulation |
| CN204512799U (en) * | 2015-03-16 | 2015-07-29 | 浙江赛德斯低温设备有限公司 | A kind of cryogenic piping with epoxy plate supporting structure |
| JP2016080053A (en) * | 2014-10-16 | 2016-05-16 | 川崎重工業株式会社 | Joint structure for cryogenic fluid vacuum heat insulation double pipe |
| CN205350688U (en) * | 2016-01-13 | 2016-06-29 | 北京航天发射技术研究所 | Low -temperature vacuum pipeline with inside and outside compensation function |
| CN208074310U (en) * | 2018-04-16 | 2018-11-09 | 成都科瑞尔低温设备有限公司 | Multimedium is the same as defeated high vacuum multiple layer heat insulation pipe |
-
2018
- 2018-12-12 CN CN201811519980.0A patent/CN109668007A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1363076A (en) * | 1970-10-12 | 1974-08-14 | British Oxygen Co Ltd | Pipeline insulation |
| JP2016080053A (en) * | 2014-10-16 | 2016-05-16 | 川崎重工業株式会社 | Joint structure for cryogenic fluid vacuum heat insulation double pipe |
| CN204512799U (en) * | 2015-03-16 | 2015-07-29 | 浙江赛德斯低温设备有限公司 | A kind of cryogenic piping with epoxy plate supporting structure |
| CN205350688U (en) * | 2016-01-13 | 2016-06-29 | 北京航天发射技术研究所 | Low -temperature vacuum pipeline with inside and outside compensation function |
| CN208074310U (en) * | 2018-04-16 | 2018-11-09 | 成都科瑞尔低温设备有限公司 | Multimedium is the same as defeated high vacuum multiple layer heat insulation pipe |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107777A (en) * | 2019-05-23 | 2019-08-09 | 中国科学院理化技术研究所 | A kind of adiabatic supporting device |
| CN110715173A (en) * | 2019-09-29 | 2020-01-21 | 西安交通大学 | Quick precooling transmission pipeline structure of low-temperature propellant |
| CN112388095A (en) * | 2020-11-24 | 2021-02-23 | 合肥科烨电物理设备制造有限公司 | Steel-aluminum composite pipe brazing equipment and brazing method |
| 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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Application publication date: 20190423 |