CN107489858A - The hot On Tranofer Tube For Liquid Helium of low drain - Google Patents

The hot On Tranofer Tube For Liquid Helium of low drain Download PDF

Info

Publication number
CN107489858A
CN107489858A CN201710810463.8A CN201710810463A CN107489858A CN 107489858 A CN107489858 A CN 107489858A CN 201710810463 A CN201710810463 A CN 201710810463A CN 107489858 A CN107489858 A CN 107489858A
Authority
CN
China
Prior art keywords
tube
cold screen
liquid helium
hot
tranofer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201710810463.8A
Other languages
Chinese (zh)
Other versions
CN107489858B (en
Inventor
刘大猛
张晨辉
王婷
雒建斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tsinghua University
Original Assignee
Tsinghua University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tsinghua University filed Critical Tsinghua University
Priority to CN201710810463.8A priority Critical patent/CN107489858B/en
Publication of CN107489858A publication Critical patent/CN107489858A/en
Application granted granted Critical
Publication of CN107489858B publication Critical patent/CN107489858B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00Thermal insulation in general
    • F16L59/06Arrangements using an air layer or vacuum
    • F16L59/065Arrangements using an air layer or vacuum using vacuum
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L53/00Heating of pipes or pipe systems; Cooling of pipes or pipe systems

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Insulation (AREA)

Abstract

The invention provides a kind of hot On Tranofer Tube For Liquid Helium of low drain, including:Vacuum outer tube, its both ends are respectively equipped with infusion connector;Cold screen sealing structure, it is located in the vacuum outer tube, and the cold screen sealing structure has transfusion inner tube and cold screen pipe, and the cold screen seal of tube is set in outside the transfusion inner tube, formed with annular seal space between the cold screen pipe and the transfusion inner tube, the annular seal space is interior to be filled with gas;The housing for containing adsorbent is arranged with the transfusion inner tube, the housing is located in the annular seal space.The hot On Tranofer Tube For Liquid Helium of low drain of the present invention, can effectively reduce the loss of liquid helium in liquid helium course of conveying.

Description

The hot On Tranofer Tube For Liquid Helium of low drain
Technical field
The present invention is related to a kind of On Tranofer Tube For Liquid Helium, low more particularly to being applied in a kind of refrigeration & cryogenic engineering field Leak hot On Tranofer Tube For Liquid Helium.
Background technology
With the development of technology, application of the liquid helium in fields such as low-temperature physics, low-temperature superconductings is more and more wider, due to liquid helium Temperature is extremely low (temperature of liquid helium is -269 DEG C), therefore is easy to gasification, particularly in liquid helium course of conveying.Simultaneously liquid helium into This is high, if being configured without helium recovery unit, the helium of gasification will be discharged directly, can cause larger economic loss.
High vacuum multiple layer heat insulation structure is directly used in traditional On Tranofer Tube For Liquid Helium, due to lacking suitable low-temperature receiver, therefore is not had There is setting low temperature cold screen, cause leakage heat larger.
The content of the invention
It is an object of the invention to provide a kind of hot On Tranofer Tube For Liquid Helium of low drain, can effectively reduce liquid helium in liquid helium course of conveying Loss.
The above-mentioned purpose of the present invention can be realized using following technical proposal:
The present invention provides a kind of hot On Tranofer Tube For Liquid Helium of low drain, and it includes:
Vacuum outer tube, its both ends are respectively equipped with infusion connector;
Cold screen sealing structure, it is located in the vacuum outer tube, and the cold screen sealing structure has transfusion inner tube and cold Screen pipe, the cold screen seal of tube are set in outside the transfusion inner tube, formed with close between the cold screen pipe and the transfusion inner tube Chamber is sealed, gas is filled with the annular seal space;The housing for containing adsorbent is arranged with the transfusion inner tube, the housing is located at In the annular seal space.
In embodiments of the present invention, multiple adiabatic support knots are provided between the cold screen pipe and the vacuum outer tube Structure.
In embodiments of the present invention, the adiabatic supporting construction is the platy structure with multiple abutments, described Platy structure is socketed on the cold screen pipe, and multiple abutments are connected on the inwall of the vacuum outer tube.
In embodiments of the present invention, the gas is nitrogen or argon gas.
In embodiments of the present invention, the transfusion inner tube is provided with bellows, and the bellows is located at the cold screen In pipe.
In embodiments of the present invention, the outside of the cold screen pipe and the transfusion inner tube pass the cold screen pipe Both ends are arranged with multilayer insulant layer respectively.
In embodiments of the present invention, the hot On Tranofer Tube For Liquid Helium of the low drain has cryogenic globe valve, the low temperature cut-off Valve is connected to the transfusion inner tube.
In embodiments of the present invention, between the vacuum outer tube and the cold screen sealing structure formed with vacuum chamber, The vacuum outer tube is provided with and vacuumizes interface, and the interface that vacuumizes is connected with the vacuum chamber.
In embodiments of the present invention, two infusion connectors of the vacuum outer tube are respectively connected with mouthpiece, institute Stating mouthpiece has the external tapping pipe being connected with the vacuum outer tube, and the inner joint pipe being connected with the transfusion inner tube, institute The external tapping seal of tube is stated to be set in outside the inner joint pipe, between the external tapping pipe and the inner joint pipe formed with it is described The hub cavity that vacuum chamber is connected.
In embodiments of the present invention, the vacuum outer tube is multiple to pass through vacuum between multiple vacuum outer tubes Band mesh grid flexible pipe is connected;The cold screen sealing structure is multiple, and multiple cold screen sealing structures, which are connected in series, to be arranged on In multiple vacuum outer tubes, it is connected between the both ends of the transfusion inner tube of each cold screen sealing structure by bellows.
The characteristics of low drain hot On Tranofer Tube For Liquid Helium of the present invention and advantage are:The hot On Tranofer Tube For Liquid Helium of the low drain is provided with cold screen pipe And annular seal space, by cold screen pipe and the heat convection mode of transfusion inner tube, solve the problems, such as the low-temperature receiver needed for cold screen pipe cooling, together When utilize the Refrigeration Technique of adsorbent again, avoid convection current extremely low temperature under and leak hot loss, effectively reduce infusion process middle pipe Road leakage heat, reduce the liquid helium loss in infusion process.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings Accompanying drawing.
Fig. 1 is the cross section structure diagram of the hot On Tranofer Tube For Liquid Helium of low drain of the present invention.
Fig. 2 is the schematic diagram of the adiabatic supporting construction of the hot On Tranofer Tube For Liquid Helium of low drain of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made Embodiment, belong to the scope of protection of the invention.
As depicted in figs. 1 and 2, the present invention provides a kind of hot On Tranofer Tube For Liquid Helium of low drain, and it includes vacuum outer tube 1 and cold screen is close Seal structure 2, wherein:The both ends of vacuum outer tube 1 are respectively equipped with infusion connector 11;Cold screen sealing structure 2 is located in outside the vacuum In pipe 1, the cold screen sealing structure 2 has transfusion inner tube 21 and cold screen pipe 22, and the cold sealing of screen pipe 22 is set in described defeated Outside liquid inner tube 21, formed with annular seal space 23 between the cold screen pipe 22 and the transfusion inner tube 21, the annular seal space 23 is interior to fill There is gas;The housing 24 for containing adsorbent 241 is arranged with the transfusion inner tube 21, the housing 24 is located at the annular seal space 23 It is interior.
Specifically, vacuum outer tube 1 is substantially cylindrical, it is made up of stainless steel material, and the wall thickness of the vacuum outer tube 1 is less than Or equal to 3mm;The both ends of the vacuum outer tube 1 are respectively formed with two infusion connectors 11.In the present embodiment, vacuum outer tube 1 One end is connected with adapter 12, the setting perpendicular with vacuum outer tube 1 of adapter 12 and is oppositely arranged with infusion connector 11, and the adapter 12 has There are inner connecting tube 121 and extension tube attached 122, the extension tube attached 122 is connected with vacuum outer tube 1, shape between inner connecting tube 121 and extension tube attached 122 Into there is adapter chamber 123.
Cold screen sealing structure 2 is arranged in vacuum outer tube 1, and it is between vacuum outer tube 1 formed with vacuum chamber 13, the vacuum Chamber 13 is connected with adapter chamber 123;In the present embodiment, it is connected with vacuum outer tube 1 and vacuumizes interface 16, this vacuumizes interface 16 are connected with vacuum chamber 13;Certainly, in other examples, this vacuumizes the extension tube attached that interface 16 may be provided at adapter 12 On 122, it is not limited herein.16 external vavuum pump of interface is vacuumized by this, can be achieved to vacuumize operation to vacuum chamber 13, Use is vacuumized again after can also be used for vacuum failure, it is convenient and swift.
The cold screen sealing structure 2 has transfusion inner tube 21 and cold screen pipe 22, and the cold sealing of screen pipe 22 is set in transfusion inner tube 21 Outside, in the present embodiment, cold 22 generally tubular structure of screen pipe, it is made up of oxygen-free copper or red copper material, outside cold screen pipe 22 Surface can effectively ensure that the finish on its surface, reduced the emissivity of material surface using polishing or electroplating processes.At this In invention, the both ends of the cold screen pipe 22 are sealedly attached to transfusion inner tube 21, the end part seal joint by end part seal joint 221 221 be the thin-walled body made of stainless steel material or titanium alloy material, and it is welded to connect in the end of cold screen pipe 22 and transfusion Between the outer tube wall of inner tube 21, so as to effectively seal the annular seal space 23 formed between transfusion inner tube 21 and cold screen pipe 22, Transfusion inner tube 21 and the direct heat conduction leakage heat of cold screen pipe 22 can be effectively reduced.The transfusion inner tube 21 passes the both ends of cold screen pipe 22 It is respectively protruding into two infusion connectors 11 at the both ends of vacuum outer tube 1.
In the present invention, the hot On Tranofer Tube For Liquid Helium of the low drain also has cryogenic globe valve 4, and the cryogenic globe valve 4 is connected to defeated Liquid inner tube 21.The cryogenic globe valve 4 is used to control the flow in liquid helium course of conveying, and it can be hand-operated valve, pneumatic operated valve or electricity Dynamic control valve.The cryogenic globe valve 4 in addition to valve handle all is arranged in vacuum outer tube 1, the import of the cryogenic globe valve 4 with it is aftermentioned The inner joint pipe 142 of mouthpiece 14 be welded to connect, it is exported is welded to connect with inner tube 21 of infusing, and its valve handle passes through flange or weldering Binding structure is connected with vacuum outer tube 1.
The housing 24 with multiple perforates is arranged with the transfusion inner tube 21, the housing 24 for example can be by the way of bonding The outer wall of transfusion inner tube 21 is connected to, is placed with adsorbent 241 in the housing 24, in the present embodiment, the adsorbent 241 can be The porous media material such as activated carbon or molecular sieve.In the present invention, the both ends of the transfusion inner tube 21 in annular seal space 23 point A housing for being loaded with adsorbent 241 24 is not connected with.
Gas is filled with the annular seal space 23 formed between the transfusion inner tube 21 and cold screen pipe 22, in the present embodiment, should Gas can be nitrogen or argon gas, under normal temperature condition (such as 20 DEG C), the control of gas pressure in annular seal space 23 100Pa~ 1000Pa。
Further, two infusion connectors 11 of the vacuum outer tube 1 are respectively connected with mouthpiece 14, the mouthpiece 14 have with The connected external tapping pipe 141 of vacuum outer tube 1, and the inner joint pipe 142 being connected with transfusion inner tube 21, the external tapping pipe 141 are close Big envelope is located at outside inner joint pipe 142, formed with being connected with vacuum chamber 13 between the external tapping pipe 141 and inner joint pipe 142 Hub cavity 143.
In the present embodiment, transfusion inner tube 21 passes the both ends of the cold screen pipe 22 inner joint pipe with each mouthpiece 14 respectively 142 are connected, and one end of the external tapping pipe 141 of each mouthpiece 14 is connected with vacuum outer tube 1, and its other end sealing welding is in inner joint The end of pipe 142, so that the hub cavity 143 and vacuum chamber 13 that are connected form overall sealing structure.
In the embodiment shown in Fig. 1 of the present invention, the generally straight tube-like of vacuum outer tube 1, two mouthpieces 14 are connected to The both ends of vacuum outer tube 1, and respectively with the 1 perpendicular setting of vacuum outer tube so that the present invention the hot On Tranofer Tube For Liquid Helium of low drain Overall U-shaped structure;Certainly, in other embodiments, two mouthpieces 14 also can with the 1 parallel setting of vacuum outer tube, with The hot On Tranofer Tube For Liquid Helium of low drain for making the present invention is in integrally in-line structure;Or in a further embodiment, two mouthpieces 14 In one of with the 1 perpendicular setting of vacuum outer tube, another mouthpiece 14 and the 1 parallel setting of vacuum outer tube so that this hair The overall L-shaped structure of the hot On Tranofer Tube For Liquid Helium of bright low drain, is not limited herein.
In infusion process, two infusion connectors 11 of the hot On Tranofer Tube For Liquid Helium of low drain are distinguished into connecting interface pipe 14 first Afterwards, connected to liquid helium Dewar and related liquid helium application apparatus.Before initial transfusion, whole inner tube 21 of infusing is all in normal temperature state (20 DEG C), liquid helium are directly entered transfusion inner tube 21, and begin to cool down transfusion inner tube 21, now due to having gas in annular seal space 23, The heat convection between transfusion inner tube 21 and cold screen pipe 22 can be strengthened, so that cold screen pipe 22 also fast cooling, with defeated The reduction of the temperature of liquid inner tube 21, the temperature of adsorbent 241 are also decreased, and adsorbent 241 is had to the adsorption capacity of gas Effect is strengthened so that the gas in annular seal space 23 is all adsorbed or freezed solidification, and high vacuum is realized in annular seal space 23, inner tube of infusing Leakage heat between 21 and cold screen pipe 22 substantially reduces, now because the temperature of cold screen pipe 22 has quickly been reduced, according to spoke Penetrate Lou hot formula Q=ε σ A (Th 4-Tl 4),
Wherein, Q:Leaking heat is radiated, unit is W (watt);
ε:Slin emissivity;
σ:Boltzmann constant, 5.67 × 10-8W/m2K4, unit W/m2K4(four times of watt every square metre of every Kelvin Side);
Th:High-temperature material surface temperature, unit are K (Kelvin);
Tl:Cryogenic material surface temperature, unit are K (Kelvin);
According to above formula, under conditions of cryogenic material surface temperature is constant, high-temperature material surface temperature drops from 300K As little as below 80K, radiation leakage heat, which will have, is reduced to original 1/200th.Therefore the spoke of transfusion inner tube 21 can quickly be reduced Penetrate Lou hot.
The hot On Tranofer Tube For Liquid Helium of low drain of the present invention, there is provided cold screen pipe 22 and annular seal space 23, passes through cold screen pipe 22 and transfusion The heat convection mode of inner tube 21, solve the problems, such as that cold screen pipe 22 cools required low-temperature receiver, while utilize the cold of adsorbent 241 again Freeze techniques, the loss of convection current leakage heat under extremely low temperature is avoided, effectively reduce pipeline leakage heat in infusion process, reduce infusion process In liquid helium loss.Due to the introducing of cold screen pipe 22, it is especially apparent for low discharge liquid helium transfusion advantage.
According to an embodiment of the invention, multiple adiabatic support knots are provided between cold the screen pipe 22 and vacuum outer tube 1 Structure 3.
As shown in Fig. 2 the adiabatic supporting construction 3 is the platy structure with multiple abutments 31, platy structure socket On cold screen pipe 22, multiple abutments 31 are connected on the inwall of vacuum outer tube 1.In the present embodiment, the adiabatic supporting construction 3 Substantially rectangular plate, it has four abutments 31, and the middle part of the adiabatic supporting construction 3, which is provided with, to be used to be socketed cold screen pipe 22 Connecting hole, the inwall of four abutments 31 of the adiabatic supporting construction 3 respectively with vacuum outer tube 1 is weldingly connected;Further, Four perforation 32 are additionally provided with close to the external place of four abutments 31 in the adiabatic supporting construction 3, the perforation 32 is used to connect absolutely The inner chamber of the vacuum outer tube 1 of the hot both sides of supporting construction 3.Adiabatic generally use low thermal conductivity material of supporting construction 3 processing and Into, such as can be that (G10 is a kind of answering as synthesized by glass fabric with epoxy number fat for stainless steel material or G10 materials Condensation material), the inner side of usual adiabatic supporting construction 3 is contacted with the directly fixation of cold screen pipe 22, and outside is connect using the point of abutment 31 Touch mode be connected with vacuum outer tube 1, so as to avoid the middle part of cold screen pipe 22 from directly being contacted with the middle part of vacuum outer tube 1, cause compared with Big leakage heat.The adiabatic supporting construction 3 is applicable in the longer structure of vacuum outer tube 1, prevents vacuum outer tube 1 and cold screen pipe 22 Directly contact.
Further, in the present invention, the transfusion inner tube 21 is provided with bellows 211, and the bellows 211 is positioned at described In cold screen pipe 22.In order to avoid causing to be seal failure due to low-temperature shrink amount difference due to cold screen pipe 22 and transfusion inner tube 21, Therefore bellows 211 is set in the transfusion inner tube 21 in annular seal space 23, for compensating deflection.
Further, the outside of the cold screen pipe 22 and transfusion inner tube 21 pass the both ends of the cold screen pipe 22 and are arranged respectively There is multilayer insulant layer.The insulation material layer can be aluminium plating terylene film, further reduce leakage heat, to ensure system leakage heat to the greatest extent May be small.
According to an embodiment of the invention, the vacuum outer tube 1 is multiple, passes through vacuum between multiple vacuum outer tubes 1 Band mesh grid flexible pipe 15 is connected;The cold screen sealing structure 2 to be multiple, multiple cold screen sealing structures 2 be connected in series be arranged on it is more In individual vacuum outer tube 1, it is connected between the both ends of the transfusion inner tube 21 of each cold screen sealing structure 2 by bellows 212.
Specifically, pass through vacuum belt mesh grid flexible pipe 15 between the vacuum outer tube 1 adjacent two-by-two of multiple vacuum outer tubes 1 Connect adjacent, wherein, vacuum belt mesh grid flexible pipe 15 is that outside is metal net, and inside is the pipe of flexible hydraulic bellows Body, it is made up of stainless steel material.
Multiple cold screen sealing structures 2, which are connected in series, to be arranged in multiple vacuum outer tubes 1, the cold screen sealing of two be disposed adjacent It is connected between the end of the transfusion inner tube 21 of structure 2 by bellows 212, the bellows 212 and vacuum belt mesh grid flexible pipe 15 are oppositely arranged.
In order to ensure the flexibility of the hot On Tranofer Tube For Liquid Helium of low drain of the present invention, convenient operation, the cold screen sealing structure 2, which uses, divides Section arrangement, and bellows 212 and vacuum belt mesh grid are used between every section of transfusion inner tube 21 and between vacuum outer tube 1 The flexible connecting structure of flexible pipe 15, so as to meet overall flexibility demand.The present invention is while reduction leakage is hot, to greatest extent It ensure that the flexibility of the hot On Tranofer Tube For Liquid Helium of low drain.
Several embodiments of the present invention are the foregoing is only, those skilled in the art is according to application documents disclosure Various changes or modifications can be carried out without departing from the spirit and scope of the present invention to the embodiment of the present invention.

Claims (10)

  1. A kind of 1. hot On Tranofer Tube For Liquid Helium of low drain, it is characterised in that including:
    Vacuum outer tube, its both ends are respectively equipped with infusion connector;
    Cold screen sealing structure, it is located in the vacuum outer tube, and the cold screen sealing structure has transfusion inner tube and cold screen pipe, The cold screen seal of tube is set in outside the transfusion inner tube, formed with annular seal space between the cold screen pipe and the transfusion inner tube, Gas is filled with the annular seal space;The housing for containing adsorbent is arranged with the transfusion inner tube, the housing is positioned at described In annular seal space.
  2. 2. the hot On Tranofer Tube For Liquid Helium of low drain as claimed in claim 1, it is characterised in that the cold screen pipe and the vacuum outer tube it Between be provided with multiple adiabatic supporting constructions.
  3. 3. the hot On Tranofer Tube For Liquid Helium of low drain as claimed in claim 2, it is characterised in that the adiabatic supporting construction is with multiple The platy structure of abutment, the platy structure are socketed on the cold screen pipe, and multiple abutments are connected to the vacuum On the inwall of outer tube.
  4. 4. the hot On Tranofer Tube For Liquid Helium of low drain as claimed in claim 1, it is characterised in that the gas is nitrogen or argon gas.
  5. 5. the hot On Tranofer Tube For Liquid Helium of low drain as claimed in claim 1, it is characterised in that the transfusion inner tube is provided with bellows, The bellows is located in the cold screen pipe.
  6. 6. the hot On Tranofer Tube For Liquid Helium of low drain as claimed in claim 1, it is characterised in that the outside of the cold screen pipe and described defeated The both ends that liquid inner tube passes the cold screen pipe are arranged with multilayer insulant layer respectively.
  7. 7. the hot On Tranofer Tube For Liquid Helium of low drain as claimed in claim 1, it is characterised in that the hot On Tranofer Tube For Liquid Helium of low drain has low Warm stop valve, the cryogenic globe valve are connected to the transfusion inner tube.
  8. 8. the hot On Tranofer Tube For Liquid Helium of low drain as claimed in claim 1, it is characterised in that the vacuum outer tube seals with the cold screen Formed with vacuum chamber between structure, the vacuum outer tube is provided with and vacuumizes interface, described to vacuumize interface and the vacuum chamber It is connected.
  9. 9. the hot On Tranofer Tube For Liquid Helium of low drain as claimed in claim 8, it is characterised in that two transfusions of the vacuum outer tube Interface is respectively connected with mouthpiece, and the mouthpiece has an external tapping pipe being connected with the vacuum outer tube, and with the transfusion The connected inner joint pipe of inner tube, the external tapping seal of tube are set in outside the inner joint pipe, the external tapping pipe with it is described interior Formed with the hub cavity being connected with the vacuum chamber between mouthpiece.
  10. 10. the hot On Tranofer Tube For Liquid Helium of low drain as claimed in any one of claims 1-9 wherein, it is characterised in that the vacuum outer tube is It is multiple, it is connected between multiple vacuum outer tubes by vacuum belt mesh grid flexible pipe;The cold screen sealing structure is more to be multiple The individual cold screen sealing structure, which is connected in series, to be arranged in multiple vacuum outer tubes, each cold screen sealing structure it is described defeated It is connected between the both ends of liquid inner tube by bellows.
CN201710810463.8A 2017-09-11 2017-09-11 The hot On Tranofer Tube For Liquid Helium of low drain Active CN107489858B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710810463.8A CN107489858B (en) 2017-09-11 2017-09-11 The hot On Tranofer Tube For Liquid Helium of low drain

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710810463.8A CN107489858B (en) 2017-09-11 2017-09-11 The hot On Tranofer Tube For Liquid Helium of low drain

Publications (2)

Publication Number Publication Date
CN107489858A true CN107489858A (en) 2017-12-19
CN107489858B CN107489858B (en) 2019-04-30

Family

ID=60651630

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710810463.8A Active CN107489858B (en) 2017-09-11 2017-09-11 The hot On Tranofer Tube For Liquid Helium of low drain

Country Status (1)

Country Link
CN (1) CN107489858B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110017919A (en) * 2018-01-10 2019-07-16 中国科学院理化技术研究所 Cryogenic delivery pipe road leaking heat test macro and measurement method
CN114165653A (en) * 2021-11-04 2022-03-11 中国工程物理研究院应用电子学研究所 Multichannel liquid helium transfusion pipe and liquid helium transfusion device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2755404Y (en) * 2004-11-30 2006-02-01 贾林祥 Low-temperature fluid pipeline of vacuum sandwich with cold screen
CN2913782Y (en) * 2005-07-06 2007-06-20 贾林祥 Thermally-insulated support means of vacuum interlayer cryogenic fluid delivery conduit with cooling screen
US7517576B2 (en) * 2004-10-12 2009-04-14 Hitachi Appliances, Inc. Vacuum insulation panel
CN101712382A (en) * 2010-01-20 2010-05-26 张周卫 Self-pressurization type space low-infrared radiation cold-shield system device
CN101738055A (en) * 2009-11-10 2010-06-16 北京航空航天大学 Liquid helium conveying pipeline and heat sink interface form design
EP2730831A1 (en) * 2012-11-08 2014-05-14 Linde Aktiengesellschaft Pipeline apparatus
CN203823261U (en) * 2014-04-22 2014-09-10 中国科学院等离子体物理研究所 Low-temperature pipeline return gas cold shieldsystem
CN203963355U (en) * 2014-05-23 2014-11-26 北京航天发射技术研究所 A kind of new type low temperature vacuum multi-layer insulation abnormity pipeline

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7517576B2 (en) * 2004-10-12 2009-04-14 Hitachi Appliances, Inc. Vacuum insulation panel
CN2755404Y (en) * 2004-11-30 2006-02-01 贾林祥 Low-temperature fluid pipeline of vacuum sandwich with cold screen
CN2913782Y (en) * 2005-07-06 2007-06-20 贾林祥 Thermally-insulated support means of vacuum interlayer cryogenic fluid delivery conduit with cooling screen
CN101738055A (en) * 2009-11-10 2010-06-16 北京航空航天大学 Liquid helium conveying pipeline and heat sink interface form design
CN101712382A (en) * 2010-01-20 2010-05-26 张周卫 Self-pressurization type space low-infrared radiation cold-shield system device
EP2730831A1 (en) * 2012-11-08 2014-05-14 Linde Aktiengesellschaft Pipeline apparatus
CN203823261U (en) * 2014-04-22 2014-09-10 中国科学院等离子体物理研究所 Low-temperature pipeline return gas cold shieldsystem
CN203963355U (en) * 2014-05-23 2014-11-26 北京航天发射技术研究所 A kind of new type low temperature vacuum multi-layer insulation abnormity pipeline

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110017919A (en) * 2018-01-10 2019-07-16 中国科学院理化技术研究所 Cryogenic delivery pipe road leaking heat test macro and measurement method
CN114165653A (en) * 2021-11-04 2022-03-11 中国工程物理研究院应用电子学研究所 Multichannel liquid helium transfusion pipe and liquid helium transfusion device

Also Published As

Publication number Publication date
CN107489858B (en) 2019-04-30

Similar Documents

Publication Publication Date Title
EP2167862B1 (en) Vacuum insulated piping assembly method
CN101405533B (en) Cryogenic aerogel insulation system
WO2017118241A1 (en) Mechanical vibration-isolated, liquid helium consumption-free and extremely low temperature refrigerating system
CN100538151C (en) Cryogenic piping system
CN103968878B (en) Low temperature pulsating heat pipe experimental provision
CN210196798U (en) Low-temperature vacuum pipeline
CN103307380A (en) Low-temperature fluid delivery tube connector with potential isolating function
CN107489858B (en) The hot On Tranofer Tube For Liquid Helium of low drain
CN104654692A (en) Air gap type thermal switch applied to extremely-low-temperature refrigerator and heat conduction method thereof
CN207394145U (en) cryogenic transfer line
CN109668007A (en) A kind of high pressure vacuum Sandwich pipeline
US3302419A (en) Vacuum jacket siphon for cryogenic fluids
JP2015117778A (en) Vacuum heat insulation pipe and vacuum heat insulation transfer tube
JP5243154B2 (en) Current leads for superconducting equipment
CN214840074U (en) High-vacuum maintained liquid helium dewar
CN110308175B (en) Device for testing multilayer heat insulation materials under liquid helium storage and liquid helium temperature zone
KR101639189B1 (en) Joint structure of vacuum insulate pipe
CN207471021U (en) A kind of vacuum interlayer cryogenic fluid transfer pipeline
CN108547753A (en) A kind of heavy caliber liquid nitrogen-GM type cryogenic pumps
CN114017507B (en) Vacuum low-temperature valve for liquid helium and liquid hydrogen
CN221897353U (en) Liquid helium transmission pipe interface device and liquid helium transmission pipeline
CN210376204U (en) Device for storing liquid helium and testing multilayer heat-insulating material under liquid helium temperature zone
CN107806537A (en) cryogenic transfer line
CN109707991A (en) A kind of deep cooling high-pressure hydrogen storing bottle
CN107725972A (en) A kind of vacuum interlayer cryogenic fluid transfer pipeline

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB03 Change of inventor or designer information
CB03 Change of inventor or designer information

Inventor after: Zhang Chenhui

Inventor after: Liu Dameng

Inventor after: Wang Ting

Inventor after: Wu Pu

Inventor after: Luo Jianbin

Inventor after: Chen Jie

Inventor after: Chao Wei

Inventor after: Li Yanfeng

Inventor before: Liu Dameng

Inventor before: Zhang Chenhui

Inventor before: Wang Ting

Inventor before: Luo Jianbin

GR01 Patent grant
GR01 Patent grant