CN107478519A - A kind of Cryo Equipment supports heat-insulated bar cryogenic property test device and method of testing - Google Patents
A kind of Cryo Equipment supports heat-insulated bar cryogenic property test device and method of testing Download PDFInfo
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- CN107478519A CN107478519A CN201710651346.1A CN201710651346A CN107478519A CN 107478519 A CN107478519 A CN 107478519A CN 201710651346 A CN201710651346 A CN 201710651346A CN 107478519 A CN107478519 A CN 107478519A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0228—Low temperature; Cooling means
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of Cryo Equipment to support heat-insulated bar cryogenic property test device, including base, vacuum tank, axially mounted part and radially installed part, axially mounted part mainly provides axial tension, radially installed part mainly provides low temperature environment, axially mounted part includes the first heat-insulated bar of support, cold drawing, the second heat-insulated bar of support, load pull bar and loading device, unidirectional or three-dimensional low temperature foil gauge and unidirectional or three-dimensional normal temperature foil gauge are respectively arranged with the heat-insulated bar of first support and the second heat-insulated bar of support, radially installed part includes the heat insulation support seat in vacuum tank, cold drawing, cold bridge device and cryocooler cold head, heating plate is provided with cryocooler cold head；The invention also discloses its method of testing；Clever structure of the present invention is reliable, meets that Cryo Equipment supports the mechanical property of heat-insulated bar and leakage Thermal test demand, its test result to provide technical support for the master-plan of Cryo Equipment.
Description
Technical field
The invention belongs to material properties test technical field, and in particular to a kind of Cryo Equipment supports heat-insulated bar low temperature properties
Energy test device and its method of testing, in simulating examination low-temperature vacuum environment, Cryo Equipment to support heat-insulated bar in low temperature
Under intensity and leakage heat.
Background technology
For it is some run on the equipment of profound hypothermia for, be typically in the low temperature environment for place it into heat-insulation vacuum, and
Itself and the structural member under normal temperature state are linked together using heat-insulated bar is supported.Support the pass that heat-insulated bar is Cryo Equipment
Key member, play a part of adiabatic, load bearing equipment weight and undertake certain load, thus it is same in the design for supporting heat-insulated bar
When take into account intensity and leak the requirement of hot these two aspects.I.e. in the design process for supporting heat-insulated bar, following factor need to be considered：1）It is logical
Structure design is crossed, makes it that there is enough intensity at low ambient temperatures；2）By dimensionally-optimised design, relatively low leakage is made it have
Heat, with this come meet cryogenic refrigerating system to leakage heat general requirement.
At present, the cold performance test device that domestic testing machine factory provides typically is formed by universal testing machine transformation, and
It is only capable of testing liquid nitrogen environment（77K）Under intensity, it is impossible to test leakage heat.For it is some apply to the equipment at a temperature of 30K for,
The experimental rig obviously can not meet performance test demand.
Based on this, propose that a kind of Cryo Equipment supports heat-insulated bar cryogenic property test device, the experimental rig can not only
The true stress of heat-insulated bar and working condition are supported under enough feasible simulation 30K low temperature environments（One end is low temperature 30K, and one end is normal temperature,
Bear certain axial tension simultaneously）, and the temperature of the heat-insulated bar of support, strain, pulling force and leakage heat etc. can be tested,
Relevant parameter is obtained, the intensity for supporting heat-insulated bar whether can meet Cryo Equipment and leakage heat request are verified with this, set for low temperature
Standby master-plan provides technical support.
The content of the invention
An object of the present invention is according to the deficiencies in the prior art, with reference to the true stress and work shape of Cryo Equipment
State, design a kind of Cryo Equipment and support heat-insulated bar cryogenic property test device, test device disclosed by the invention can expire simultaneously
Under sufficient low temperature environment（30K）The examination demand of intensity and leakage heat.
The technical solution adopted for the present invention to solve the technical problems is：A kind of Cryo Equipment supports heat-insulated bar low temperature properties
Energy test device, including base, vacuum tank, axially mounted part and the radially installed part being arranged in vacuum tank,
Described axially mounted part include the first heat-insulated bar of support, cold drawing, the second support that are coaxially sequentially connected in the horizontal direction every
Hot rod and loading pull bar, the heat-insulated bar of the described first support, cold drawing and the second heat-insulated bar of support are arranged in vacuum tank, described
Loading pull bar through vacuum tank and with vacuum tank be tightly connected, described axially mounted part also include be arranged on base
Loading device that is upper and being fixedly connected with loading the external part of pull bar, the other end of the described first heat-insulated bar of support hold with vacuum
The inwall of device is connected, the described first heat-insulated bar of support and the connection end of the heat-insulated bar of the second support and cold drawing be provided with it is unidirectional or
Three-dimensional low temperature foil gauge, the heat-insulated bar of the described first support and the connection end of vacuum tank and the second heat-insulated bar of support and loading
The connection end of pull bar is provided with unidirectional or three-dimensional normal temperature foil gauge, and described radially installed part includes the vertical radial direction along cold drawing
Heat insulation support seat, cold drawing, cold bridge device and the cryocooler cold head that direction is sequentially connected, described heat insulation support seat are fixedly installed on
On the inwall of vacuum tank, heating plate is provided with described cryocooler cold head.
Described loading device includes the head rod that is arranged side by side and the second connecting rod, described head rod and
The both ends of second connecting rod are fixedly installed first crossbeam and second cross beam respectively, and described first crossbeam is stretched with loading pull bar
Go out end to be fixedly connected, the jack being fixedly connected on base is provided between described first crossbeam and second cross beam, it is described
Second cross beam on be provided with the pressure sensor being used cooperatively with jack.
Described cold bridge device is formed by multiple sheet coppers for being bent into U-shaped are stacked.
The sealing baffle being used cooperatively with loading pull bar is further fixedly arranged on described vacuum tank, described vacuum is held
The one 0 type sealing ring is provided between device and loading pull bar and between vacuum tank, loading pull bar and sealing baffle.
Described vacuum tank includes casing and the cover plate being connected with box sealing, and described casing includes framework, taken out very
Empty joint, aviation socket and cryocooler cold head seat, described cryocooler cold head seat are tightly connected with cryocooler cold head.
The heat-insulated bar of first support, cold drawing, cryocooler cold head, cold bridge device, heat insulation support seat and second support heat-insulated bar
Aluminium plating terylene film is enclosed with outer surface.
Described heat insulation support seat is glass fiber reinforced plastics composite material part, heatpiston's part or multi-hole material workpiece.
The second object of the present invention is to provide the test that a kind of Cryo Equipment supports heat-insulated bar cryogenic property test device
Method, comprise the following steps：
a）By the casing of vacuum tank, cold drawing, cold bridge device, cryocooler cold head, heating plate, the first heat-insulated bar of support, second
Support heat-insulated bar, loading pull bar, the one 0 type sealing ring and sealing baffle to be assembled together, without assembling heat insulation support seat, then use
Aluminium plating terylene film is wrapped in the outer of cold drawing, cold bridge device, cryocooler cold head, the heat-insulated bar of the first support and the second heat-insulated bar of support
Surface, and cover the cover plate of vacuum tank；
b）By vacuumizing joint, vacuum tank is vacuumized, and vacuum is maintained into certain level；
c）Open refrigeration machine and heating plate, temperature stabilization after 30K, according to the refrigerating capacity under refrigeration machine 30K and heating plate plus
Heat, it is back-calculated to obtain the leakage heat of the heat-insulated bar of the first support and the second heat-insulated bar of support；
d）Refrigeration machine and heating plate are closed, opens the cover plate of vacuum tank, after rising again, heat insulation support seat is assembled, wraps and aluminize
After mylar, the cover plate of vacuum tank is covered, and loading device and loading pull bar are linked together, completes experimental rig
Assembling；
e）After vacuumizing, refrigeration machine is opened, temperature stabilization then supports heat-insulated bar and the in 30K by loading device to first
The two heat-insulated bars of support apply axial tension, test its surface strain, and its intensity is assessed according to test result.
The beneficial effects of the invention are as follows：
The cold bridge device of test device of the present invention is advantageous to pass cold using the multilayer U-shaped thin-walled cold bridge being superimposed
While passing cold drawing, the rigidity of cold bridge device is reduced, avoids destroying cryocooler cold head in loading procedure.Meanwhile pass through mould
Intend the true stress and working condition that support heat-insulated bar in certain Cryo Equipment, test and support the mechanical property of heat-insulated bar at low temperature
Can be hot with leakage, relevant parameter is obtained, the intensity for supporting heat-insulated bar whether can meet Cryo Equipment is demonstrated with this and leaks heat and is wanted
Ask.Clever structure of the present invention is reliable, meets that Cryo Equipment supports the mechanical property and leakage Thermal test demand of heat-insulated bar, it is tested
As a result technical support can be provided for the master-plan of Cryo Equipment.
Brief description of the drawings
Fig. 1 is the structural representation of apparatus of the present invention；
Fig. 2 is the vacuum tank and loading pull bar installation close-up schematic view of apparatus of the present invention；
Fig. 3 and Fig. 4 is the structural representation of vacuum tank of the present invention；
Fig. 5 is the structural representation of the vacuum tank casing of apparatus of the present invention；
Fig. 6 is the structural representation of the loading device of apparatus of the present invention；
Fig. 7 is the structural representation of the cold bridge device of apparatus of the present invention.
Each reference is：1-vacuum tank, 101-casing, the 102-the 20 type sealing ring, 103-cover plate, 104-
Casing and cover plate installation bolt, 105-casing and cover plate installation pad, 1011-framework, 1012-vacuumizing joint, 1013-
Aviation socket, 1014-cryocooler cold head seat, the 2-the first heat-insulated bar of support, 3-cold drawing, 4-heating plate, 5-refrigeration machine are cold
Head, 6-cold bridge device, the 61-the first cold bridge, the 62-the second cold bridge, the 63-the three cold bridge, 7-aluminium plating terylene film, 8-heat-insulated
Support base, the 9-the second heat-insulated bar of support, the 10-the one 0 type sealing ring, 11-sealing baffle, 12-loading pull bar, 13-bottom
Seat, 14-loading device, 141-first crossbeam, 142-head rod, the 143-the second connecting rod, 144-second cross beam,
145-crossbeam and connecting rod installation bolt, 146-crossbeam and connecting rod installation pad, 147-pressure sensor, 148-very heavy
Top, 15-sealing baffle installation bolt, 16-sealing baffle installation pad.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Heat-insulated bar cryogenic property test dress is supported referring to figs. 1 to shown in Fig. 7, the invention discloses a kind of Cryo Equipment
Put, including base 13, vacuum tank 1, axially mounted part and the radially installed part being arranged in vacuum tank 1, it is described
Vacuum tank 1 and base 13 be fixed on test platform.
Described vacuum tank 1 includes casing 101 and cover plate 103, is provided between described casing 101 and cover plate 103
2nd 0 type sealing ring 102, described cover plate 103 install pad 105 by casing and cover plate installation bolt 104, casing and cover plate
It is fixedly connected on casing 101.Described casing 101 includes framework 1011, vacuumizing joint 1012, aviation socket 1013 and system
Cold cold head seat 1014, described cryocooler cold head seat 1014 are connected by metal o-ring and bolt with the sealing of cryocooler cold head 5
Connect.
The first heat-insulated bar 2 of support that described axially mounted part includes coaxially being sequentially connected in the horizontal direction, cold drawing 3,
The heat-insulated bar 9 of second support and loading pull bar 12, the heat-insulated bar 2 of the described first support, cold drawing 3 and second support heat-insulated bar 9 to set
In vacuum tank 1, described loading pull bar 12 passes through vacuum tank 1, is further fixedly arranged on described vacuum tank 1 with adding
Carry the sealing baffle 11 that is used cooperatively of pull bar 12, between described vacuum tank 1 and loading pull bar 12 and vacuum tank 1 plus
Carry and be provided with the one 0 type sealing ring 10 between pull bar 12 and sealing baffle 11.Described sealing baffle 11 passes through sealing baffle
Installation bolt 15 and sealing baffle installation pad 16 are fixedly connected on vacuum tank 1.
Described axially mounted part also includes being arranged on base 13 and the external part with loading pull bar 12 is fixedly connected
Loading device 14.Described loading device 14 includes the connecting rod 143 of head rod 142 and second being arranged side by side, described
The both ends of the connecting rod 143 of head rod 142 and second pass through crossbeam and connecting rod installation bolt 145, crossbeam and connecting rod
Installation pad 146 is fixedly installed first crossbeam 141 and second cross beam 144, described first crossbeam 141 and loading pull bar respectively
12 external part is bolted to connection, and is provided with and is fixedly connected between described first crossbeam 141 and second cross beam 144
Jack 148 on base 13, the pressure sensor being used cooperatively with jack 148 is provided with described second cross beam 144
147.When applying oil pressure to jack 148, the jacking system of jack 148 will drive the second horizontal stroke by pressure sensor 147
Beam 144, and then support heat-insulated bar 9 to apply axial tension to the first heat-insulated bar 2 and second of support.
The other end of the heat-insulated bar 2 of described first support is connected with the inwall of vacuum tank 1, described first support every
Hot rod 2 and second supports heat-insulated bar 9 low for the heat-insulated bar low-temperature end of the first support and the second heat-insulated bar of support with the connection end of cold drawing 3
The outer surface of Wen Duan, the heat-insulated bar low-temperature end of the described first support and the second heat-insulated bar low-temperature end of support is provided with unidirectional or three-dimensional
Low temperature foil gauge, the described first heat-insulated bar 2 of support and the connection end of vacuum tank 1 and the second heat-insulated bar 9 of support and loading
The connection end of pull bar 12 is the heat-insulated bar normal temperature end of the first support and the second heat-insulated bar normal temperature end of support, and the described first support is heat-insulated
The outer surface at bar normal temperature end and the second heat-insulated bar normal temperature end of support is provided with unidirectional or three-dimensional normal temperature foil gauge.
Described radially installed part includes heat insulation support seat 8, the cold drawing being sequentially connected along the vertical radial direction of cold drawing 3
3rd, cold bridge device 6 and cryocooler cold head 5, described heat insulation support seat 8 is fixedly installed on the inwall of vacuum tank 1, described
Heating plate 4 it has been bolted on cryocooler cold head 5, the electric current of described heating plate 4 is by aviation plug 1013 by outside
Power supply is powered.Described heat insulation support seat 8 is glass fiber reinforced plastics composite material part, heatpiston's part or multi-hole material workpiece, for supporting
The weight of cold drawing 3, the heat-insulated bar 2 and second of the first support is avoided to support heat-insulated bar 9 to produce additional load.Described cold bridge device 6
The first cold bridge 61, the second cold bridge 62 and the 3rd cold bridge 63 of the U-shaped set including superposition, the first described cold bridge 61, second
The cold bridge 63 of cold bridge 62 and the 3rd is bent by sheet copper to be formed.
The heat-insulated bar 2 of described first support, cold drawing 3, cryocooler cold head 5, cold bridge device 6, heat insulation support seat 8 and second
Support and be enclosed with aluminium plating terylene film 7 on the outer surface of heat-insulated bar 9.
Described axially mounted part mainly provides axial tension, and described radially installed part mainly provides low temperature ring
Border, the actual connection status that the heat-insulated bar 2 and second of the support of simulation first supports heat-insulated bar 9 is used to, is easy to accurate test first
Heat-insulated bar 2 and second is supported to support the performance of heat-insulated bar 9；Simultaneously heat-insulated bar 9 is supported for the heat-insulated bar 2 and second of the support of monitoring first
Ess-strain, be disposed with unidirectional or three in the outer surface of the first heat-insulated bar low-temperature end of support and the second heat-insulated bar low-temperature end of support
To low temperature foil gauge, unidirectionally mistake is disposed with the outer surface at the heat-insulated bar normal temperature end of the first support and the second heat-insulated bar normal temperature end of support
Three-dimensional normal temperature foil gauge, institute is leaded to be drawn by aviation plug 1013.
The invention also discloses the method for testing that a kind of Cryo Equipment supports heat-insulated bar cryogenic property test device, including
Following steps：
a）The casing 101 of vacuum tank, cold drawing 3, cold bridge device 6, cryocooler cold head 5, heating plate 4, first are supported into heat-insulated bar
2nd, the second heat-insulated bar 9 of support, loading pull bar 12, the one 0 type sealing ring 10 and sealing baffle 11 are assembled together, without assembling every
Hot support base 8, then it is wrapped in cold drawing 3, cold bridge device 6, cryocooler cold head 5, first with aluminium plating terylene film 7 and supports heat-insulated bar
2 and second support the outer surface of heat-insulated bar 9, and cover the cover plate 103 of vacuum tank；
b）By vacuumizing joint 1012, vacuum tank 1 is vacuumized, and vacuum is maintained into certain level；
c）Refrigeration machine and heating plate 4 are opened, temperature stabilization is after 30K, according to the refrigerating capacity under refrigeration machine 30K and heating plate 4
Heating amount, it is back-calculated to obtain the leakage heat that the heat-insulated bar 2 and second of the first support supports heat-insulated bar 9；
d）Refrigeration machine and heating plate 4 are closed, opens the cover plate 103 of vacuum tank, after rising again, assembling heat insulation support seat 8, is wrapped
After aluminium plating terylene film 7, the cover plate 103 of vacuum tank is covered, and loading device 14 and loading pull bar 12 are linked together, it is complete
Into the assembling of experimental rig；
e）After vacuumizing, refrigeration machine is opened, temperature stabilization then supports the heat-insulated He of bar 2 in 30K by loading device 14 to first
The second heat-insulated bar 9 of support applies axial tension, tests its surface strain, and its intensity is assessed according to test result.
The above-described embodiments merely illustrate the principles and effects of the present invention, and the embodiment that part uses, for
For one of ordinary skill in the art, without departing from the concept of the premise of the invention, can also make it is some deformation and
Improve, these belong to protection scope of the present invention.
Claims (8)
1. a kind of Cryo Equipment supports heat-insulated bar cryogenic property test device, it is characterised in that：Including base（13）, vacuum hold
Device（1）, axially mounted part and be arranged on vacuum tank（1）Interior radially installed part, described axially mounted part bag
Include the first heat-insulated bar of support being coaxially sequentially connected in the horizontal direction（2）, cold drawing（3）, the second heat-insulated bar of support（9）Drawn with loading
Bar（12）, the heat-insulated bar of described first support（2）, cold drawing（3）With the second heat-insulated bar of support（9）It is arranged on vacuum tank（1）It is interior,
Described loading pull bar（12）Through vacuum tank（1）And and vacuum tank（1）It is tightly connected, described axially mounted part is also
Including being arranged on base（13）Above and with loading pull bar（12）The loading device that is fixedly connected of external part（14）, described first
Support heat-insulated bar（2）The other end and vacuum tank（1）Inwall be connected, the described first heat-insulated bar of support（2）With second
Support heat-insulated bar（9）With cold drawing（3）Connection end be provided with unidirectional or three-dimensional low temperature foil gauge, the described first heat-insulated bar of support
（2）With vacuum tank（1）Connection end and the second heat-insulated bar of support（9）With loading pull bar（12）Connection end be provided with unidirectionally
Or three-dimensional normal temperature foil gauge, described radially installed part are included along cold drawing（3）Vertical radial direction be sequentially connected it is heat-insulated
Support base（8）, cold drawing（3）, cold bridge device（6）And cryocooler cold head（5）, described heat insulation support seat（8）It is fixedly installed on true
Empty container（1）Inwall on, described cryocooler cold head（5）On be additionally provided with heating plate（4）.
2. a kind of Cryo Equipment according to claim 1 supports heat-insulated bar cryogenic property test device, it is characterised in that
Described loading device（14）Including the head rod being arranged side by side（142）With the second connecting rod（143）, described first connects
Extension bar（142）With the second connecting rod（143）Both ends be fixedly installed first crossbeam respectively（141）And second cross beam（144）, institute
The first crossbeam stated（141）With loading pull bar（12）External part be fixedly connected, described first crossbeam（141）And second cross beam
（144）Between be provided with and be fixedly connected on base（13）On jack（148）, described second cross beam（144）On be provided with
With jack（148）The pressure sensor being used cooperatively（147）.
3. a kind of Cryo Equipment according to claim 2 supports heat-insulated bar cryogenic property test device, it is characterised in that
Described cold bridge device（6）Formed by multiple sheet coppers for being bent into U-shaped are stacked.
4. a kind of Cryo Equipment according to claim 3 supports heat-insulated bar cryogenic property test device, it is characterised in that
Described vacuum tank（1）On be further fixedly arranged on loading pull bar（12）The sealing baffle being used cooperatively（11）, described is true
Empty container（1）With loading pull bar（12）Between and vacuum tank（1）, loading pull bar（12）With sealing baffle（11）Between be all provided with
It is equipped with the one 0 type sealing ring（10）.
5. a kind of Cryo Equipment according to claim 4 supports heat-insulated bar cryogenic property test device, it is characterised in that
Described vacuum tank（1）Including casing（101）With with casing（101）The cover plate of sealed connection（103）, described casing
（101）Including framework（1011）, vacuumizing joint（1012）, aviation socket（1013）With cryocooler cold head seat（1014）, it is described
Cryocooler cold head seat（1014）With cryocooler cold head（5）It is tightly connected.
6. a kind of Cryo Equipment according to claim 5 supports heat-insulated bar cryogenic property test device, it is characterised in that
The first heat-insulated bar of support（2）, cold drawing（3）, cryocooler cold head（5）, cold bridge device（6）, heat insulation support seat（8）With second support every
Hot rod（9）Outer surface on be enclosed with aluminium plating terylene film（7）.
7. a kind of Cryo Equipment according to claim 6 supports heat-insulated bar cryogenic property test device, it is characterised in that
Described heat insulation support seat（8）For glass fiber reinforced plastics composite material part, heatpiston's part or multi-hole material workpiece.
8. a kind of Cryo Equipment as described in any one of claim 1 to 7 supports the survey of heat-insulated bar cryogenic property test device
Method for testing, it is characterised in that comprise the following steps：
a）, by the casing of vacuum tank（101）, cold drawing（3）, cold bridge device（6）, cryocooler cold head（5）, heating plate（4）, first
Support heat-insulated bar（2）, the second heat-insulated bar of support（9）, loading pull bar（12）, the one 0 type sealing ring（10）And sealing baffle（11）
It is assembled together, without assembling heat insulation support seat（8）, then use aluminium plating terylene film（7）It is wrapped in cold drawing（3）, cold bridge device
（6）, cryocooler cold head（5）, the first heat-insulated bar of support（2）With the second heat-insulated bar of support（9）Outer surface, and cover vacuum tank
Cover plate（103）；
b）, pass through vacuumizing joint（1012）, to vacuum tank（1）Vacuumized, and vacuum is maintained into certain level；
c）, open refrigeration machine and heating plate（4）, temperature stabilization is after 30K, according to the refrigerating capacity and heating plate under refrigeration machine 30K
（4）Heating amount, be back-calculated to obtain the heat-insulated bar of the first support（2）With the second heat-insulated bar of support（9）Leakage heat；
d）, close refrigeration machine and heating plate（4）, open the cover plate of vacuum tank（103）, after rising again, assemble heat insulation support seat
（8）, wrap aluminium plating terylene film（7）Afterwards, the cover plate of vacuum tank is covered（103）, and by loading device（14）With loading pull bar
（12）Link together, complete the assembling of experimental rig；
e）, vacuumize after, open refrigeration machine, temperature stabilization then passes through loading device in 30K（14）To the first heat-insulated bar of support
（2）With the second heat-insulated bar of support（9）Apply axial tension, test its surface strain, its intensity is assessed according to test result.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710651346.1A CN107478519B (en) | 2017-08-02 | 2017-08-02 | A kind of Cryo Equipment supports heat-insulated bar cryogenic property test device and test method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710651346.1A CN107478519B (en) | 2017-08-02 | 2017-08-02 | A kind of Cryo Equipment supports heat-insulated bar cryogenic property test device and test method |
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| CN107478519A true CN107478519A (en) | 2017-12-15 |
| CN107478519B CN107478519B (en) | 2019-06-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111487136A (en) * | 2020-04-28 | 2020-08-04 | 滁州市永通交通设备有限公司 | Aluminum honeycomb panel rigidity testing arrangement based on external environment simulation |
| CN114383811A (en) * | 2022-01-17 | 2022-04-22 | 中国科学院上海微系统与信息技术研究所 | Optical self-alignment extremely-low-temperature test system |
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| CN111487136B (en) * | 2020-04-28 | 2023-04-18 | 滁州市永通交通设备有限公司 | Aluminum honeycomb panel rigidity testing arrangement based on external environment simulation |
| CN114383811A (en) * | 2022-01-17 | 2022-04-22 | 中国科学院上海微系统与信息技术研究所 | Optical self-alignment extremely-low-temperature test system |
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