CN108627403A - A kind of cryogenic test equipment - Google Patents

A kind of cryogenic test equipment Download PDF

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Publication number
CN108627403A
CN108627403A CN201810706600.8A CN201810706600A CN108627403A CN 108627403 A CN108627403 A CN 108627403A CN 201810706600 A CN201810706600 A CN 201810706600A CN 108627403 A CN108627403 A CN 108627403A
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CN
China
Prior art keywords
low temperature
cryogenic
circular hole
refrigerator
temperature bin
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.)
Pending
Application number
CN201810706600.8A
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Chinese (zh)
Inventor
许天旱
林宏
丁明
丁一明
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Xian Shiyou University
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Xian Shiyou 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.)
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Publication date
Application filed by Xian Shiyou University filed Critical Xian Shiyou University
Priority to CN201810706600.8A priority Critical patent/CN108627403A/en
Publication of CN108627403A publication Critical patent/CN108627403A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/18Performing tests at high or low temperatures
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02Details
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014Type of force applied
    • G01N2203/0016Tensile or compressive
    • G01N2203/0017Tensile
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02Details not specific for a particular testing method
    • G01N2203/022Environment of the test
    • G01N2203/0222Temperature
    • G01N2203/0228Low temperature; Cooling means

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

A kind of cryogenic test equipment, including low temperature bin, refrigerator and display composition;Sample both ends are closely connect with cryostat, and partition board respectively, sample is mounted on by extension rod on cupping machine, bat-handle switch knob opens refrigerator, after display medium temperature reaches test temperature on handle display screen, rotate speed governing knob, cryogenic pump is started to work, cryogenic media enters low temperature bin by input pipe, refrigerator is flowed back to via efferent duct, it rotates speed governing knob and controls cryogenic liquid flow velocity, when showing that low temperature bin temperature curve reaches test requirements document on display, cupping machine is opened, display records stress strain curve;The present apparatus is simple in structure, easy to operate, can be precisely accomplished associated low temperature tension test.

Description

A kind of cryogenic test equipment
Technical field
The invention belongs to Material Testing Technology fields, and in particular to and a kind of cryogenic test equipment provides a kind of low temperature environment, Realize the purpose of the mechanical property of test material and intensity curve at low ambient temperatures.
Background technology
Petroleum and petrochemical industry all be unable to do without the branch of metal material from the exploitation of oil to pipeline transportation and oil refining It holds, and the place of production of oil, often in wilderness field, natural conditions are severe, and outdoor temperature is low.For metal material under low temperature environment Whether safety be on active service, be everybody discuss always the problem of.Test the mechanical property of metal material sample at low ambient temperatures, letter Easily, the equipment for meeting test requirements document there is not yet.
Invention content
To overcome above-mentioned the deficiencies in the prior art, the purpose of the present invention is to provide a kind of low-temperature test environment, make experiment Sample is in required cryogenic temperature, to complete to test;With simple in structure, operation is simple, is quick on the draw, test accuracy High feature.
To achieve the goals above, the technical solution adopted by the present invention is:A kind of cryogenic test equipment, including low temperature bin, low temperature Storehouse is located on support base, and low temperature bin is connect with support base by buffer;Low temperature bin input interface by input pipe successively with it is low Temperature pump, refrigerator are connected;Low temperature bin output interface is connect by efferent duct with refrigerator;Refrigerator is connected with display screen and control Handle;The low temperature bin is divided into low temperature chamber and partition board, and low temperature chamber is by metal courage, insulating layer one, insulating layer two, shell, annular bottom Board group at;The upper opening of the metal courage has edge and a vertical edge edge in level, and partition board is positioned over metal courage opening in experimentation; Edge and vertical edge edge and baffle contacts in level;The partition board is made of circular lower plate, annular thermal insulation board and ring-like upper plate;Every Plate, cryostat, collectively constitute the space of opposing seal, and space memory lowers geothermal liquid medium, and cryogenic liquid medium passes through input pipe Interior cycle is formed at the space in low temperature bin with efferent duct.
The partition board center of the low temperature bin carries circular hole A, and low temperature chamber bottom carries circular hole D, and sample may pass through above-mentioned two The arc-shaped transition section of a circular hole A and circular hole D, sample one end are closely connect with partition board circular hole A, the arc-shaped transition section of the sample other end It is closely connect with low temperature chamber circular hole D, it is ensured that the non-leakage cryogenic media of low temperature chamber, while ensuring that partition board just covers opening in low temperature chamber On mouth.
The partition board is provided with circular hole A, circular hole B, circular hole C;The circular hole A places sample, circular hole B passes through displacement sensing Device, circular hole C pass through temperature sensor.
The centre bit of the platform of the support base is equipped with circular hole E, and extension rod passes through circular hole E;Extension rod and sample screw thread Connection.
The refrigerator generates cryogenic liquid, and cryogenic liquid enters low temperature bin by input pipe;Cryogenic liquid is full of low temperature Behind storehouse, refrigerator is flowed back to via efferent duct, cryogenic liquid flow velocity is controlled by control handle;There is switching knob on control handle, adjust Fast knob and flow velocity display screen;Control handle is connect by cable with refrigerator;Refrigerator and display wired connection, display The signal of temperature sensor, position sensor is received, shows that the temperature curve of liquid and sample stretch in low temperature bin on display Curve.
The low temperature bin is closely connect with sample, it is ensured that and it is non-leakage, after preparation is completed, start to test.
When experiment, sample is mounted on cupping machine by extension rod, refrigerator is opened, is shown on uniform flow display screen After showing that medium temperature reaches test temperature, speed governing knob is rotated, cryogenic pump is started to work, and cryogenic media enters low temperature by input pipe Refrigerator is flowed back in storehouse via efferent duct, according to the temperature for showing low temperature bin on display, speed governing knob is rotated, when low temperature bin temperature When spending curve level without fluctuation, cupping machine is opened, display records stress strain curve.Since partition board and low temperature chamber separate vertically When, stress very little does not influence test result, in error range.The temperature sensor and position sensor of use can be penetrated Signal, display receive signal, show low temperature bin temperature curve and stress strain curve.
The beneficial effects of the invention are as follows:
1)Since the present invention connects low temperature bin by refrigerator, low temperature bin freezes sample, completes to stretch examination on cupping machine It tests, realizes the accurate low-temperature test requirement of low-temperature test;
2)Since the present invention is closely connect by sample with low temperature bin, low temperature bin rationally designs, and low temperature chamber is connect with baffle contacts, It is greatly reduced test error, it is ensured that the accuracy of test result.
3)Since the present invention is by low temperature bin and sample integrated design, it is mounted on testing machine, temperature sensor measurement Low temperature bin temperature, display real-time display low temperature bin temperature, it is ensured that the accuracy of stretching experiment.
4)Using extension rod, structure is more reasonable, increases experiment convenience.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is low temperature bin structural schematic diagram of the present invention.
Fig. 3 is the low temperature bin structural schematic diagram after the fixed sample of the present invention.
Fig. 4 is the structure enlargement diagram of I in Fig. 3 of the present invention.
The structure enlargement diagram that Fig. 5 is in Fig. 2 of the present invention II.
Fig. 6 is style and extension rod schematic diagram in figure of the present invention.
Specific implementation mode
Invention is further described in detail below in conjunction with the accompanying drawings.
Referring to attached drawing 1,2,3,4,5, a kind of cryogenic test equipment includes a low temperature bin 6,6 input interface of low temperature bin 6014 connection input pipes 2, input pipe 2 are connect with cryogenic pump 1, and cryogenic pump 1 is connected with refrigerator 13;6 output interface of low temperature bin 6015 connection efferent ducts 3, efferent duct 3 are connect with refrigerator 13;Refrigerator 13 is connected with display screen 11 and control handle 5;Low temperature Storehouse 6 is made of cryostat, 601 and partition board 602;Metal courage 6011, insulating layer 1, insulating layer 2 6016, shell 6013, ring Shape bottom plate 6017 forms cryostat, 601;The opening of metal courage 6011 has in level along 6018 and vertical edge along 6019, metal courage 6011 Positioned at innermost layer, insulating layer 1 is close to 6011 outer wall of metal courage, and shell 6013 is in outermost;Insulating layer 2 6016 is close to 6011 bottom of metal courage, annular bottom plate 6017 are close to 2 6016 lower part of insulating layer, and annular bottom plate 6017 is in the most bottom of cryostat, 601 Portion.
601 bottom of cryostat, is equipped with circular hole D601-1, and partition board 602 is provided with circular hole A602-1, circular hole B602-2, circular hole C602-3, circular hole A602-1 place sample 9, circular hole B602-2 places displacement sensor 8, and circular hole C602-3 places temperature sensor 7。
Two extension rods 14 are threadedly coupled with sample 9, by specially treated, the arc-shaped transition section and partition board of 9 one end of sample 602 circular hole A are closely connected, and the arc-shaped transition section of 9 other end of sample is closely connect with 601 circular hole D601-1 of low temperature chamber, it is ensured that low 601 non-leakage cryogenic media of warm slot, while ensuring that partition board 602 just covers in the opening of cryostat, 601.
On the platform 111 of support base 15, low temperature bin 6 is connect with platform 111 by buffer 12 low temperature bin 6;One is prolonged Boom 14 passes through the circular hole E111-1 on platform 111, two extension rods 14 to be clamped on cupping machine.
Refrigerator 13 generates cryogenic liquid, and cryogenic liquid enters low temperature bin 6 by input pipe 2, via output after cycle Pipe 3 flows back to refrigerator 13;There are switching knob 501, speed governing knob 502 and flow velocity display screen 503 on control handle 5, flow velocity is shown Fluid temperature in 503 display refrigerator 13 of screen, adjusts cryogenic liquid flow velocity by speed governing knob 502, controls liquid in low temperature bin 6 Temperature shows the real time temperature curve of liquid in low temperature bin 6 on display 11, when temperature curve reaches experiment and wants on display 11 After asking, cupping machine is opened, cupping machine is started to work, and Live stretch curve is shown on display 11.
The present invention operation principle be:
Refrigerator 13 provides cryogenic media, and cryogenic liquid enters low temperature bin 6 by cryogenic pump 1 by input pipe 2, after cycle via Efferent duct 3 flows back to refrigerator 13, and 9 temperature of sample is regulated and controled by 6 cryogenic liquid of low temperature bin, and cryogenic media temperature reaches test temperature, Temperature is stablized, and tension test starts, and measurement data is presented in graph form on display 11.

Claims (5)

1. a kind of cryogenic test equipment, including low temperature bin (6), low temperature bin (6) are located at support base(15)On, low temperature bin (6) and branch Support seat(15)It is connected by buffer (12);Low temperature bin (6) input interface(6014)By input pipe (2) successively with cryogenic pump (1), refrigerator(13)It is connected;Low temperature bin (6) output interface(6015)Pass through efferent duct(3)With refrigerator(13)Connection;Refrigeration Device(13)It is connected with display screen(11)With control handle(5);The low temperature bin (6) is divided into cryostat,(601)And partition board(602), Cryostat,(601)By metal courage(6011), insulating layer one(6012), insulating layer two(6016), shell(6013), annular bottom plate (6017)Composition;It is characterized in that, the metal courage(6011)Upper opening have edge in level(6018)With vertical edge edge (6019), partition board in experimentation(602)It is positioned over metal courage(6011)Opening;Edge in level(6018)With vertical edge edge (6019)With partition board(602)Contact;The partition board(602)By circular lower plate(6021), annular thermal insulation board (6022) and it is annular on Plate(6023)Composition;Partition board(602), cryostat,(601)Collectively constitute the space of opposing seal(10), space(10)Memory is lowerd Geothermal liquid medium, cryogenic liquid medium pass through input pipe(2)And efferent duct(3)It is followed in being formed at the space of low temperature bin (10) Ring.
2. a kind of cryogenic test equipment according to claim 1, which is characterized in that the partition board of the low temperature bin (6) (602)Center carries circular hole A(602-1), cryostat,(601)Bottom carries circular hole D(601-1), sample(9)It may pass through above-mentioned two A circular hole A and circular hole D, sample(9)The arc-shaped transition section and partition board of one end(602)Circular hole A is closely connected, sample(9)The other end Arc-shaped transition section and cryostat,(601)Circular hole D is closely connected, it is ensured that cryostat,(601)Non-leakage cryogenic media, ensures simultaneously Partition board(602)It just covers in cryostat,(601)Opening on.
3. a kind of cryogenic test equipment according to claim 2, which is characterized in that the circular hole A(602-1)Place examination Sample(9), circular hole B(602-2)Pass through displacement sensor(8), circular hole C(602-3)Pass through temperature sensor(7).
4. a kind of cryogenic test equipment according to claim 1, which is characterized in that the support base(15)Platform (111)Centre bit be equipped with circular hole E(111-1), extension rod(14)Pass through circular hole E(111-1);Extension rod(14)With sample(9) It is threadedly coupled.
5. a kind of cryogenic test equipment according to claim 1, which is characterized in that the refrigerator(13)Generate Low Temperature Liquid Body, cryogenic liquid enter low temperature bin (6) by input pipe (2);After cryogenic liquid is full of low temperature bin (6), via efferent duct(3)Stream Return refrigerator(13), cryogenic liquid flow velocity is by control handle(5)Control;Control handle(5)On have switching knob(501), speed governing Knob(502)With flow velocity display screen(503);Control handle(5)Pass through cable(4)With refrigerator(13)Connection;Refrigerator(13) With display(11)Wired connection, display(11)Receive temperature sensor(7), position sensor(8)Signal, display (11)The temperature curve and sample stress strain curve of upper display low temperature bin (6) interior liquid.
CN201810706600.8A 2018-07-02 2018-07-02 A kind of cryogenic test equipment Pending CN108627403A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810706600.8A CN108627403A (en) 2018-07-02 2018-07-02 A kind of cryogenic test equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810706600.8A CN108627403A (en) 2018-07-02 2018-07-02 A kind of cryogenic test equipment

Publications (1)

Publication Number Publication Date
CN108627403A true CN108627403A (en) 2018-10-09

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ID=63689233

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Application Number Title Priority Date Filing Date
CN201810706600.8A Pending CN108627403A (en) 2018-07-02 2018-07-02 A kind of cryogenic test equipment

Country Status (1)

Country Link
CN (1) CN108627403A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006078397A (en) * 2004-09-10 2006-03-23 Momose Kikai Sekkei Kk Low/high temperature strength tester
CN203396654U (en) * 2013-07-10 2014-01-15 南京钢铁股份有限公司 Low-temperature tensile test system for twisted steel
CN207488054U (en) * 2017-10-26 2018-06-12 西安石油大学 A kind of cryogenic test equipment
CN208420562U (en) * 2018-07-02 2019-01-22 西安石油大学 A kind of cryogenic test equipment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006078397A (en) * 2004-09-10 2006-03-23 Momose Kikai Sekkei Kk Low/high temperature strength tester
CN203396654U (en) * 2013-07-10 2014-01-15 南京钢铁股份有限公司 Low-temperature tensile test system for twisted steel
CN207488054U (en) * 2017-10-26 2018-06-12 西安石油大学 A kind of cryogenic test equipment
CN208420562U (en) * 2018-07-02 2019-01-22 西安石油大学 A kind of cryogenic test equipment

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Application publication date: 20181009