CN207528376U - A kind of large cavity high/low temperature loading device for neutron stress measurement - Google Patents

A kind of large cavity high/low temperature loading device for neutron stress measurement Download PDF

Info

Publication number
CN207528376U
CN207528376U CN201721689181.9U CN201721689181U CN207528376U CN 207528376 U CN207528376 U CN 207528376U CN 201721689181 U CN201721689181 U CN 201721689181U CN 207528376 U CN207528376 U CN 207528376U
Authority
CN
China
Prior art keywords
cold
fixed
sealing flange
cold screen
top plate
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.)
Expired - Fee Related
Application number
CN201721689181.9U
Other languages
Chinese (zh)
Inventor
庞蓓蓓
王虹
王立智
孙光爱
李艳锋
巢伟
丁晗飞
张昌盛
李建
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.)
Institute of Nuclear Physics and Chemistry China Academy of Engineering Physics
Original Assignee
Institute of Nuclear Physics and Chemistry China Academy of Engineering Physics
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 Institute of Nuclear Physics and Chemistry China Academy of Engineering Physics filed Critical Institute of Nuclear Physics and Chemistry China Academy of Engineering Physics
Priority to CN201721689181.9U priority Critical patent/CN207528376U/en
Application granted granted Critical
Publication of CN207528376U publication Critical patent/CN207528376U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Analysing Materials By The Use Of Radiation (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The utility model provides a kind of large cavity high/low temperature loading device for neutron stress measurement, and the upper sealing flange, lower sealing flange in the device are separately mounted to the upper end of vacuum cover body, lower end, form a cylindric seal cavity;The cold screen top plate, cold screen substrate are separately fixed at cold screen upper end, lower end, form a cylindric heat radiation shield;The upper fixed specimen holder is fixed on cold screen top plate, and lower fixed specimen holder is fixed on cold screen substrate, and sample is made to be placed on inside heat radiation shield;The refrigeration machine is fixed on sealing flange, and the cold head of refrigeration machine is made to be placed in inside seal cavity;The pharoid is placed in inside heat radiation shield, is fixed on cold screen top plate;The measurement end of the platinum resistance is attached to sample surface.The utility model is simple in structure, and reliability is high.

Description

A kind of large cavity high/low temperature loading device for neutron stress measurement
Technical field
A kind of neutron diffraction in-situ temperature loading device in being applied the utility model is related to neutron diffraction stress measurement, tool Body is related to a kind of large cavity high/low temperature loading device for neutron stress measurement.
Background technology
It is used for the large cavity high/low temperature loading device cooperation neutron stress spectrometer of neutron stress measurement, available for measuring The components such as aviation wing, engine, high-speed railway rail stress distribution situation at a temperature of usage, to component materials selection, processing work Skill etc. plays directive function.The usage temperature range of these components is generally subzero tens degree to 100 degree or so.Pass through Change the environment temperature of unit under test, recycle the stress distribution of neutron stress spectrometer measuring part, can obtain unit under test should Power is distributed the mechanism that is acted upon by temperature changes.To obtain fine stress envelope, a component needs to measure tens even A different locations up to a hundred, the time-consuming time that can reach two, three days.The conventional high/low temperature loading device of the temperature section is often used and is made The liquid nitrogen of valency economy is exposed to as refrigeration source, unit under test in ambient air, long time loading(One hour or so)Tested portion Part surface can condense a large amount of frosts.Neutron is excessively poor to the penetrability of water, therefore the liquid nitrogen type of cooling is unsatisfactory for neutron scattering survey The loading requirement of amount experiment.At present, not yet it is related to neutron in domestic document or report about neutron scattering in situ environment device The relevant technologies content of diffraction in-situ low temperature loading.
Invention content
The technical problem to be solved by the present invention is to provide a kind of large cavity high/low temperatures for neutron stress measurement to add It carries and puts.The utility model can provide high and low temperature environment for component-level sample, and the structure design of device allows neutron spectrometer pair Component sample carries out 360 ° of comprehensive stress measurement, while ensures that sample is not in condensation frost in low temperature loading procedure Problem.
The large cavity high/low temperature loading device for neutron stress measurement of the utility model, its main feature is that, the loading Device includes seal cavity, heat radiation shield, specimen holder, refrigeration machine, pharoid, platinum resistance, vacuum pump and cold conduction Component;The seal cavity includes upper sealing flange, lower sealing flange, vacuum cover body;The heat radiation shield includes cold Shield top plate, cold screen substrate, cold screen;The specimen holder includes upper fixed specimen holder, lower fixed specimen holder;The cold conduction Component includes conduction cold chain, bellows, cold chain lifting rod, wherein, the upper sealing flange is provided with the true of connection vacuum pump Sky takes out mouth and connection pharoid, the electric interfaces of platinum resistance.
Its connection relation is:The upper sealing flange, lower sealing flange be separately mounted to vacuum cover body upper end, under End forms a cylindric seal cavity;The cold screen top plate, cold screen substrate are separately fixed at cold screen upper end, lower end, group The heat radiation shield cylindric into one;Using heat-insulating material respectively by cold screen top plate, cold screen substrate be fixed on upper sealing flange, On lower sealing flange, heat radiation shield is made to be placed in the inside of seal cavity;The upper fixed specimen holder is fixed on cold screen top plate On, lower fixed specimen holder is fixed on cold screen substrate, and sample is made to be placed on inside heat radiation shield;The refrigeration machine is fixed on On upper sealing flange, the cold head of refrigeration machine is made to be placed in inside seal cavity;The pharoid is placed in inside heat radiation shield, It is fixed on cold screen top plate;The measurement end of the platinum resistance is attached to sample surface;The pharoid, platinum resistance Cable be connected to sealing flange setting electric interfaces on;The vacuum pump is connected to upper sealing flange by vacuum tube Vacuum pumping port on;The cold chain lifting rod is fixed on using bellows on upper sealing flange, described conduction cold chain one end On the cold head for connecting refrigeration machine, the other end is connected on cold chain lifting rod, and the conduction cold chain is in the drive of cold chain lifting rod Under can with cold screen top plate be in close contact or be detached from.
The vacuum cover body carries out overall processing using forging thick section and high strength aluminium-alloy pipe.
The cold screen top plate, cold screen substrate selection high thermal conductivity metal material, inner surface are carried out at black anodizing Reason.
The cold screen selection high-strength aluminum alloy material, inner surface carry out black anodizing processing.
The refrigeration machine is liquid helium closed loop type refrigeration machine;
The conduction cold chain is the flexible metallic material of high thermal conductivity materials.
The cold chain lifting rod is pneumatic pull-type, and cold chain lifting rod drives conduction cold chain to be pressed onto Leng Pingding during inflation The surface of plate, cold chain lifting rod drives conduction cold chain to be detached from cold screen top plate when dying.
The course of work of described device is:
1)The air with water composition in seal cavity is extracted out using vacuum pump, ensures anhydrous, the nothing of sample environment Oxidation.
2)When carrying out refrigerating operation for sample, the cylinder valve of cold chain lifting rod is first turned on, cylinder is inflated, it is cold Chain lifting rod, which drives, conducts the surface that cold chain is pressed onto cold screen top plate;Then, start liquid helium closed loop type refrigeration machine to carry for sample For low-temperature receiver, sample is not in contact with to steam in the process, and therefore, the sample of low-temperature condition shows to be not in icing, frost.
3)When carrying out heating operation for sample, the cylinder valve of cold chain lifting rod is first shut off, is died to cylinder, it is cold Chain lifting rod drives conduction cold chain to be detached from cold screen top plate, then controls the loading current of heating plate, sample is heated;
The large cavity high/low temperature loading device for neutron stress measurement of the utility model has simple in structure, performance The characteristics of reliable.Device using closed cavity body structure and liquid helium closed loop refrigeration modes so that sample always in anaerobic, Anhydrous vacuum state, when refrigeration are not in icing, frost, and when heating is not in sample oxidation problem, so as to really The smooth development of neutron measurement experiment is protected.The vacuum cover body of device using neutron high transmittance high-strength aluminum alloy material and The processing method of forging thick-walled pipe reduces cover body wall thickness under the premise of it can bear inside and outside atmospheric pressure, true so as to ensure that The neutron high transmittance of empty cover body, meanwhile, cooperation with spinfunction sample stage, it can be achieved that 360 ° of component sample it is comprehensive Stress measurement.The utility model is suitable for the component-levels samples such as aviation wing, engine, high-speed railway rail, disclosure satisfy that component-level Sample stress distribution measurement demand at a temperature of usage is made so as to play guidance to component materials selection, processing technology etc. With with higher scientific research value and good application prospect.
Description of the drawings
Fig. 1 is the structure diagram of the large cavity high/low temperature loading device for neutron stress measurement of the utility model;
Fig. 2 is the sectional view of the large cavity high/low temperature loading device for neutron stress measurement of the utility model;
Fig. 3 is the large cavity high/low temperature loading device vertical view for neutron stress measurement of the utility model;
In figure, 2. times sealing flanges of sealing flange, 3. vacuum cover body, 4. cold 5. cold screen substrate of screen top plate on 1. 6. 8. times 10. pharoid of fixed 9. refrigeration machine of specimen holder, 11. platinum of specimen holder are fixed on cold screen 7. 12. vacuum pump 13. of resistance conduction cold chain, 14. bellows, 15. cold chain lifting rod.
Specific embodiment
The detailed content and its specific embodiment of the utility model are further illustrated below in conjunction with the accompanying drawings.
Embodiment 1
Fig. 1 to Fig. 3 is respectively the structure diagram, sectional view and vertical view of the present embodiment, in being used for of the utility model The large cavity high/low temperature loading device of sub- stress measurement adds including seal cavity, heat radiation shield, specimen holder, refrigeration machine 9, radiation Hot device 10, platinum resistance 11, vacuum pump 12 and cold conductive members;The seal cavity includes upper sealing flange 1, lower Sealing Method Orchid 2, vacuum cover body 3;The heat radiation shield includes cold screen top plate 4, cold screen substrate 5, cold screen 6;The specimen holder includes Upper fixed specimen holder 7, lower fixed specimen holder 8;The cold conductive members include conduction cold chain 13, bellows 14, cold chain and carry Pull rod 15.Wherein, the upper sealing flange 1 be provided with connection vacuum pump 12 vacuum pumping port and connection pharoid 10, The electric interfaces of platinum resistance 11.
The upper sealing flange 1, lower sealing flange 2 are separately mounted to the upper end of vacuum cover body 3, lower end, form one Cylindric seal cavity;The cold screen top plate 4, cold screen substrate 5 are separately fixed at cold 6 upper end of screen, lower end, form a circle The heat radiation shield of tubular;Using heat-insulating material respectively by cold screen top plate 4, cold screen substrate 5 be fixed on upper sealing flange 1, under it is close It seals on flange 2, heat radiation shield is made to be placed in the inside of seal cavity;The upper fixed specimen holder 7 is fixed on cold screen top plate 4 On, lower fixed specimen holder 8 is fixed on cold screen substrate 5, and sample is made to be placed on inside heat radiation shield;The refrigeration machine 9 is solid It is scheduled on sealing flange 1, the cold head of refrigeration machine 9 is made to be placed in inside seal cavity;The pharoid 10 is placed in heat spoke It penetrates inside cover, is fixed on cold screen top plate 4;The measurement end of the platinum resistance 11 is attached to sample surface;The radiation Heater 10, platinum resistance 11 cable be connected to sealing flange 1 setting electric interfaces on;The vacuum pump 12 is by true Blank pipe is connected on the vacuum pumping port of sealing flange 1;The cold chain lifting rod 15 is fixed on upper sealing using bellows 14 On flange 1, on the cold head of 13 one end of conduction cold chain connection refrigeration machine 9, the other end is connected on cold chain lifting rod 15, institute The conduction cold chain 13 stated can be in close contact or be detached from cold screen top plate 4 under the drive of cold chain lifting rod 15.
The vacuum cover body 3 carries out overall processing using forging thick section and high strength aluminium-alloy pipe.
The cold screen top plate 4, cold screen substrate 5 select high thermal conductivity metal material, and inner surface carries out black anodizing Processing.
The cold screen 6 selects high-strength aluminum alloy material, and inner surface carries out black anodizing processing.
The refrigeration machine 9 is liquid helium closed loop type refrigeration machine;
The conduction cold chain 13 is the flexible metallic material of high thermal conductivity materials.
The cold chain lifting rod 15 is pneumatic pull-type, and cold chain lifting rod 15 drives conduction cold chain 13 to be pressed onto during inflation The surface of cold screen top plate 4, cold chain lifting rod 15 drives conduction cold chain 13 to be detached from cold screen top plate 4 when dying.
In the present embodiment, upper sealing flange, lower sealing flange select stainless steel material, and vacuum cover body uses 7050 aviation aluminium Alloy material, appearance and size is diameter 600mm, height 700mm, wall thickness 4mm;Cold screen top plate, cold screen substrate select copper alloy material Matter, cold screen material selection aluminum alloy materials, appearance and size is diameter 575mm, height 550mm, wall thickness 2.5mm;Liquid helium closed loop The refrigeration work consumption of type refrigeration machine is 200w.After above-mentioned implementation, within the utility model can be to diameter 500mm, height 500mm Cylinder, annulus equidimension rank component sample carry out the high/low temperature loading of neutron diffraction original position.
Embodiment 2
The present embodiment is identical with the structure of embodiment 1, be a difference in that the appearance and size of vacuum cover body for diameter 400mm, Height 600mm, wall thickness 3mm;Cold screen top plate, cold screen substrate, cold screen select aluminum alloy materials, and the appearance and size of cold screen is diameter 375mm, height 350mm, wall thickness 2.5mm;The refrigeration work consumption of liquid helium closed loop type refrigeration machine is 150w.
The utility model can be to cylinder, the component sample of annulus equidimension rank within diameter 300mm, height 300mm Carry out the high/low temperature loading of neutron diffraction original position.

Claims (4)

1. a kind of large cavity high/low temperature loading device for neutron stress measurement, which is characterized in that the loading device includes Seal cavity, heat radiation shield, specimen holder, refrigeration machine(9), pharoid(10), platinum resistance(11), vacuum pump(12)With it is cold Measure conductive members;The seal cavity includes upper sealing flange(1), lower sealing flange(2), vacuum cover body(3);The heat It measures radiation shield and includes cold screen top plate(4), cold screen substrate(5), cold screen(6);The specimen holder includes upper fixed specimen holder(7)、 Lower fixed specimen holder(8);The cold conductive members include conduction cold chain(13), bellows(14), cold chain lifting rod(15), Wherein, the upper sealing flange(1)It is provided with connection vacuum pump(12)Vacuum pumping port and connection pharoid(10), platinum Resistance(11)Electric interfaces;Its connection relation is:The upper sealing flange(1), lower sealing flange(2)It is separately mounted to true Empty cover body(3)Upper end, lower end, form a cylindric seal cavity;The cold screen top plate(4), cold screen substrate(5)Point It is not fixed on cold screen(6)Upper end, lower end form a cylindric heat radiation shield;Using heat-insulating material respectively by cold screen top Plate(4), cold screen substrate(5)It is fixed on sealing flange(1), lower sealing flange(2)On, heat radiation shield is made to be placed in seal cavity Inside;The upper fixed specimen holder(7)It is fixed on cold screen top plate(4)On, lower fixed specimen holder(8)It is fixed on cold screen substrate (5)On, sample is made to be placed on inside heat radiation shield;The refrigeration machine(9)It is fixed on sealing flange(1)On, make refrigeration Machine(9)Cold head be placed in inside seal cavity;The pharoid(10)It is placed in inside heat radiation shield, is fixed on Leng Pingding Plate(4)On;The platinum resistance(11)Measurement end be attached to sample surface;The pharoid(10), platinum resistance (11)Cable be connected to sealing flange(1)On the electric interfaces of setting;The vacuum pump(12)It is connected by vacuum tube To upper sealing flange(1)Vacuum pumping port on;The cold chain lifting rod(15)Utilize bellows(14)It is fixed on Sealing Method It is blue(1)On, the conduction cold chain(13)One end connects refrigeration machine(9)Cold head on, the other end is connected to cold chain lifting rod (15)On, the conduction cold chain(13)In cold chain lifting rod(15)Drive under can be with cold screen top plate(4)It is in close contact or de- From.
2. the large cavity high/low temperature loading device according to claim 1 for neutron stress measurement, it is characterised in that:Institute The vacuum cover body stated(3)Overall processing is carried out using forging thick section and high strength aluminium-alloy pipe to be made.
3. the large cavity high/low temperature loading device according to claim 1 for neutron stress measurement, it is characterised in that:Institute The refrigeration machine stated(9)For liquid helium closed loop type refrigeration machine.
4. the large cavity high/low temperature loading device according to claim 1 for neutron stress measurement, it is characterised in that:Institute The cold chain lifting rod stated(15)For pneumatic pull-type, cold chain lifting rod during inflation(15)Drive conduction cold chain(13)It is pressed onto cold screen Top plate(4)Surface, cold chain lifting rod when dying(15)Drive conduction cold chain(13)It is detached from cold screen top plate(4).
CN201721689181.9U 2017-12-07 2017-12-07 A kind of large cavity high/low temperature loading device for neutron stress measurement Expired - Fee Related CN207528376U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721689181.9U CN207528376U (en) 2017-12-07 2017-12-07 A kind of large cavity high/low temperature loading device for neutron stress measurement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721689181.9U CN207528376U (en) 2017-12-07 2017-12-07 A kind of large cavity high/low temperature loading device for neutron stress measurement

Publications (1)

Publication Number Publication Date
CN207528376U true CN207528376U (en) 2018-06-22

Family

ID=62578902

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721689181.9U Expired - Fee Related CN207528376U (en) 2017-12-07 2017-12-07 A kind of large cavity high/low temperature loading device for neutron stress measurement

Country Status (1)

Country Link
CN (1) CN207528376U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107817067A (en) * 2017-12-07 2018-03-20 中国工程物理研究院核物理与化学研究所 A kind of large cavity high/low temperature loading device for neutron stress measurement
CN111122342A (en) * 2019-12-24 2020-05-08 吉林大学 Vacuum temperature-changing environment loading device for neutron stress spectrometer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107817067A (en) * 2017-12-07 2018-03-20 中国工程物理研究院核物理与化学研究所 A kind of large cavity high/low temperature loading device for neutron stress measurement
CN107817067B (en) * 2017-12-07 2023-10-20 中国工程物理研究院核物理与化学研究所 Large-cavity high-low temperature loading device for neutron stress measurement
CN111122342A (en) * 2019-12-24 2020-05-08 吉林大学 Vacuum temperature-changing environment loading device for neutron stress spectrometer

Similar Documents

Publication Publication Date Title
CN207528376U (en) A kind of large cavity high/low temperature loading device for neutron stress measurement
CN102288634B (en) Thermal physical property measuring device
CN103901232B (en) A kind of low-temperature scanning tunneling microscope utilizing the refrigeration of closed circuit refrigeration machine
CN101187611B (en) Heating device for determining non-metal material high temperature compressive strength
CN104215661B (en) Solid interface contact thermal resistance test device based on super-magnetostrictive intelligent material
CN201803966U (en) Low-temperature physical property measuring device of solid material
CN107817067A (en) A kind of large cavity high/low temperature loading device for neutron stress measurement
CN102175536A (en) Test device for high-temperature tensile strength of nonmetal material
CN103439227B (en) Liquid lithium lead compatibility static testing device
CN103424319A (en) Ultralow-temperature impact test device and test method thereof
CN101308074B (en) High-temperature high pressure oil quality characteristic measuring apparatus and measurement method
CN101750227B (en) Operational capacity test device of low-temperature pressure gloves
CN204855428U (en) Coefficient of heat conductivity tester
CN102070305A (en) Vacuum glass with real-time detectable vacuum performance
CN107664308A (en) A kind of simple vacuum microwave oven apparatus
CN204389422U (en) Superhigh temperature Heat-Insulation Test device
CN101183093B (en) Measuring equipment of non-metallic material high-temperature expansive power and method of use thereof
CN214585027U (en) Device for simulating soil freezing and thawing process under field condition
CN201896140U (en) Vacuum glass capable of detecting vacuum property in real time
CN209640268U (en) Unstable state superhigh temperature Heat-Insulation Test device
CN111366243B (en) Device for testing detection capability of infrared camera on low-temperature target in deep space background
CN103808560A (en) Continuous temperature control static mechanical property test system for 500-4.2K material
CN203465171U (en) Static test device for liquid lithium lead compatibility
CN209542496U (en) A kind of temperature-regulating fiber heat storage performance testing experiment cup
CN105784753A (en) Freeze-dryer eutectic point and co-melting point testing equipment and system

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180622

Termination date: 20191207