CN209707274U - A kind of regulation low temperature environment testing apparatus - Google Patents
A kind of regulation low temperature environment testing apparatus Download PDFInfo
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- CN209707274U CN209707274U CN201822246351.7U CN201822246351U CN209707274U CN 209707274 U CN209707274 U CN 209707274U CN 201822246351 U CN201822246351 U CN 201822246351U CN 209707274 U CN209707274 U CN 209707274U
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Abstract
The utility model provides a kind of regulation low temperature environment testing apparatus, it is related to cryogenic test equipment technical field, it include: the interlayer cavity that double-deck stainless steel constitutes cooler bin, the inlet and liquid outlet of cooler bin are connected to interlayer cavity, liquid outlet is ipsilateral to be also provided with test specimen inlet and outlet, four walls of cooler bin are provided with thermal insulation thermal insulation board, probe temperature measurer is arranged in cooler bin side wall, at the top of the press of universal testing machine and pressure head bottom is provided with plexiglas steel pipe socket, cooler bin is arranged on press, pressure head passes through through-hole and is arranged in cooler bin, the outlet of cryostat device and entrance pass through inlet tube and outlet tube respectively and are connected to the inlet of cooler bin and liquid outlet, freezing liquid is provided in cryostat device and interlayer cavity, stress-strain data collecting instrument is connect by foil gauge and foil gauge connecting line with the sample in cooler bin.The device is convenient for disassembly and assembly, and cost is relatively low, improves the utilization rate and test scope of universal testing machine, and measuring accuracy is high.
Description
Technical field
The utility model relates to cryogenic test equipment technical fields, and in particular to a kind of regulation low temperature environment testing apparatus.
Background technique
Northwest China cold district, mean winter temperature is between -3.5~-15 DEG C, from western mean winter temperature phase eastwards
Difference about 12 DEG C, Annual lowest climate temperature -26~-50 DEG C between, most area winter be up to 5 months or more.Most of this area
Concrete suffers from the influence of natural environment low temperature, and each performance (physical property, mechanical property, durability) of concrete all can
Different degrees of variation is generated, wherein mechanical property (such as compression strength, elasticity modulus) is an importance in engineering material
It can index.Therefore, influence of the testing research low temperature environment to mechanical performance of concrete can more accurately speculate concrete material
Military service performance and used life.
It is directed to the low temperature environment Study on behavior of concrete both at home and abroad, correlative study is concentrated mainly on natural environment low temperature
In ultra-low temperature surroundings.But since the performance characteristic of each local component materials of concrete has apparent otherness,
Research achievement both domestic and external cannot can only directly be applied as reference.And China not yet formulates coagulation under cold service
The codes and standards in earthwork face needs the concrete in conjunction with different regions to provide certain data and research achievement.
Currently, common low temperature environment testing apparatus can be divided into two kinds, one is the device only to cool down such as ice
Case and freeze thawing case etc., another kind are the Cryo Equipments of cooling with the device such as Takashai of load one, this device utilizes
Liquid nitrogen can quickly cool down to experimental enviroment as cooling medium, and also can be realized what cooling was carried out with loading synchronous
Operation, but there is also some disadvantages:
(1) its loading device and thermal insulation separation hot tank are integrated formula not easy to disassemble, although can guarantee the equal of environment temperature
Even property, but influence whether the use of subsequent load device, loading device provisioned in Most current universities and colleges and research is omnipotent
Testing machine, such pressure head of testing machine is excessive, and the installation of incubator is equipped with difficult.
(2) temperature used in concrete low-temperature test is mostly to simulate used in outdoor building environment temperature, and liquid nitrogen cooling can
So that temperature is minimum to drop to -195 DEG C, dropped temperature range is excessive, and wants practical liquid nitrogen steel cylinder etc. to set during test operation
Standby, cost is excessively high and there are certain risk.
(3) when universal testing machine works, test specimen and universal testing machine contact surface can generate heat, and the above Cryo Equipment
In, there is no heat-insulated safeguard measure on the press of universal test compressing head and placement test specimen.
Utility model content
In order to overcome the shortcomings of the prior art described above, the utility model provides a kind of regulation low temperature environment test dress
It sets.
To achieve the goals above, the utility model provides the following technical solutions:
A kind of regulation low temperature environment testing apparatus, including universal testing machine, cooler bin, cryostat device, probe temperature measurer and
Stress-strain data collecting instrument；
The cooler bin is formed by welding by double-deck stainless steel, and the interlayer that double-deck stainless steel constitutes the cooler bin is empty
Chamber, the bottom of the cooler bin are Openworks shape, and through-hole is offered at the top of the cooler bin, and close over is leaned in the cooler bin side
Be provided with inlet, the cooler bin other side is provided with liquid outlet close to lower section, the inlet and liquid outlet with it is described
The connection of interlayer cavity, the liquid outlet is ipsilateral to be also provided with test specimen inlet and outlet, the test specimen import and export be provided with it is described cold
But the side walls hinged hermatic door of case, four walls of the cooler bin are provided with thermal insulation thermal insulation board, and the probe temperature measurer is arranged in institute
Cooler bin side wall is stated, the probe of the probe temperature measurer is arranged inside the cooler bin, the cryostat device and interlayer cavity
In be provided with freezing liquid；
The universal testing machine includes press and the pressure head that is arranged in above the press, at the top of the press and the pressure
Head bottom is provided with plexiglas steel pipe socket, and the cooler bin is arranged on the press, and the pressure head passes through the through-hole
It is arranged in the cooler bin, the outlet of the cryostat device is connected to by inlet tube with the inlet of the cooler bin, described
The entrance of cryostat device is connected to by outlet tube with the liquid outlet of the cooler bin, and the stress-strain data collecting instrument passes through
Foil gauge and foil gauge connecting line are connect with the sample in the cooler bin.
Preferably, the freezing liquid is that water adds alcohol, and the water and alcohol by volume ratio are 3:7.
Preferably, the exit and inlet of the cryostat device are respectively arranged with positive displacement pump and liquid feeding pump, the feed liquor
The outlet of pipe and the positive displacement pump, the liquid outlet are connected to the entrance of the liquid feeding pump.
The another object of the utility model is to provide a kind of control low temperature environment test method, including following tests step:
Step 1: being respectively mounted the plexiglas steel pipe socket with the pressure head bottom at the top of the press；
Step 2: the cooler bin is placed on the press, the pressure head is protruded into the cooling box body；
Step 3: by the outlet of one end of the inlet tube and the positive displacement pump, by the other end of the inlet tube
It is connected to the inlet of the cooler bin, one end of the outlet tube is connected to the entrance of the liquid feeding pump, it will the liquid out
The other end of pipe is connected to the liquid outlet of the cooler bin, and the interface raw material band package of the inlet tube and outlet tube is carried out
Leak-proof measure, and freezing liquid is poured into the cryostat device；
Cool down Step 4: the sample of multiple and different water content is put into refrigerator, temperature is down to t1 DEG C, wherein -40 DEG C
≤t1℃≤0℃；
Step 5 opens cryostat device, the temperature of freezing liquid is transferred to t1 DEG C；
Freezing liquid after cooling is discharged into the interlayer cavity of the cooler bin by the positive displacement pump, to described by step 6
Cryostat device operation a period of time, the central temperature in the cooler bin is detected by the probe temperature measurer；
Step 6 is taken out and is pasted from refrigerator by the sample for having reached t1 DEG C when the temperature in the cooler bin reaches t1 DEG C
Foil gauge is connect by foil gauge connecting line with the stress-strain data collecting instrument, then will post strain by upper foil gauge
The sample of piece is placed in the cooler bin from test specimen inlet and outlet, and the test specimen is imported and exported and is closed；
Step 7 opens universal testing machine and carries out mechanical test, applies pressure to sample by the pressure head, by described
Stress-strain data collecting instrument measures required data；
Step 8, sets test temperature as t2 DEG C, t2 DEG C≤t1 DEG C, repeats step 4 to step 7, and so on into
Row Concrete under Low mechanical test is until temperature is down to -40 DEG C；
Step 9 after test, closes cryostat device, will be in the interlayer cavity of the cooler bin by the liquid feeding pump
Freezing liquid be discharged into the cryostat device；
Step 10 dismantles the inlet tube and the outlet tube, is done the interlayer oral rinses of the cooler bin with clear water
Only.
Regulation low temperature environment testing apparatus provided by the utility model has the advantages that
(1) device by cooler bin, cryostat device, probe temperature measurer and is answered based on existing universal testing machine
The combination of power-strain data Acquisition Instrument can accurately regulate and control cryogenic temperature and can reuse, and may be implemented under low temperature environment
The Mechanics Performance Testing of concrete, and moulding is simple, makes and easy to operate, it is convenient for disassembly and assembly, universal test can also be improved
The utilization rate of machine；
(2) the utility model can more effectively improve the utilization rate of universal testing machine, maximumlly improve universal test
The test scope of machine；
(3) sample is put into cooler bin by the utility model, utilizes the central temperature of probe temperature measurer test sample, Ke Yibao
Card sample rapidly and efficiently be reduced to required temperature, fixed probe temperature measurer makes sample internal temperature and ring outside cooler bin
Border temperature is consistent, and improves the accuracy of experimental test result；
(4) cooler bin of the utility model, cryostat device production process are simple, and easy to disassemble, cost is relatively low；
(5) pressure head of universal testing machine and fixture are protected using resin glass fibre reinforced plastics, are played heat-blocking action warm absolutely, are blocked
The heat source that sample and pressure head friction generate is easy to implement scheduled requirement so that contact surface is consistent with low temperature environment temperature；
(6) it is strong can to test the compression strength of concrete at a temperature of different moisture content Different hypothermia, anti-folding for the utility model
Degree, elasticity modulus and ess-strain, test result precision are high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the regulation low temperature environment testing apparatus of the utility model embodiment 1；
Fig. 2 is the heat-insulated processing schematic of universal testing machine；
Fig. 3 is cooler bin schematic diagram；
Fig. 4 is natural pumice concrete crushing strength change curve under low temperature；
Fig. 5 is natural pumice concrete stress-strain curve figure under low temperature.
Description of symbols:
Pressure head -1, cooler bin -2, sample -3, press -4, cryostat device -5, inlet tube -6, outlet tube -7, stress-strain
Data collecting instrument -8, probe temperature measurer -9, plexiglas steel pipe socket -10, foil gauge connecting line -11, inlet -12, out liquid
Mouth -13, inlet and outlet -14, interlayer cavity -15, thermal insulation thermal insulation board -16, positive displacement pump -17, liquid feeding pump -18, foil gauge -19 calculate
Machine -20, through-hole -21, hermatic door -22.
Specific embodiment
With reference to the accompanying drawing, specific embodiment of the present utility model is further described.Following embodiment is only used for
Clearly illustrate the technical solution of the utility model, and cannot be used as a limitation the limitation protection scope of the utility model.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside",
The orientation or positional relationship of the instructions such as " axial direction ", " radial direction ", " circumferential direction " is to be based on the orientation or positional relationship shown in the drawings, and is only
The technical solution of the utility model and simplified description for ease of description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply relatively important
Property.In the description of the present invention, it should be noted that unless otherwise specific regulation or limiting, term " connected " " connects
Connect " it should broadly understood, for example, it may be being fixedly connected, it may be a detachable connection or integral type connects；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, be also possible to indirectly connected through an intermediary.For this field
Those of ordinary skill for, can understand the concrete meaning of above-mentioned term in the present invention as the case may be.At this
In the description of utility model, unless otherwise indicated, the meaning of " plurality " is two or more, and this will not be detailed here.
Embodiment 1
The utility model provides a kind of regulation low temperature environment testing apparatus, specific as shown in Figures 1 to 3, including omnipotent examination
Test machine, cooler bin 2, cryostat device 5, probe temperature measurer 9 and stress-strain data collecting instrument 8；
Cooler bin 2 is formed by welding by double-deck stainless steel, and double-deck stainless steel constitutes the interlayer cavity 15 of cooler bin 2, no
Rust steel plate heat transfer coefficient can be transmitted to chilled liquid temperature in interlayer cavity 15 is more uniform in the cavity of cabinet greatly, for test
Environment temperature is provided；The bottom of cooler bin 2 is Openworks shape, and the top of cooler bin 2 offers through-hole 21, and 2 side of cooler bin is close
Top is provided with inlet 12, and 2 other side of cooler bin is provided with liquid outlet 13 close to lower section, inlet 12 and liquid outlet 13 with
Interlayer cavity 15 is connected to, and liquid outlet 13 is ipsilateral to be also provided with test specimen inlet and outlet 14, is provided with and cooler bin 2 at test specimen inlet and outlet 14
Side walls hinged hermatic door 22, four walls of cooler bin 2 are provided with thermal insulation thermal insulation board 16, and the effect of cooling thermal insulation board 16 is will to cool down
The outer wall of case 2 is wrapped up, and package here is one layer of heat preservation heat-barrier material, it can be understood as the materials such as cystosepiment make to press from both sides
The temperature of freezing liquid is transmitted to box house in layer cavity 15, avoids being transmitted to outside cabinet.Probe temperature measurer 9 is arranged in cooler bin
The probe of 2 side walls, probe temperature measurer 9 is arranged inside cooler bin 2, the environment temperature of test sample, and cryostat device 5 and interlayer are empty
Freezing liquid is provided in chamber 15, cryostat device 5 is existing temperature control device in the present embodiment, is provided with temperature in cryostat device 5
During adjusting, it is provided with control panel in cryostat device 5, setting for internal regulation temperature can easily be carried out by control panel
It sets.
Universal testing machine includes press 4 and the pressure head 1 that 4 top of press is arranged in, and 4 top of press and 1 bottom of pressure head are all provided with
It is equipped with plexiglas steel pipe socket 10, it can when configuring plexiglas steel pipe socket 10 on pressure head 1 and press 4 and test is completed
The damage that not will cause instrument completely is disassembled, bring convenience for subsequent tests.The pressure of universal testing machine
First 1 and press 4 wrapped up using plexiglas steel pipe socket 10 because pressure head 1 and press 4 be all steel composition, steel heat transfer
Coefficient is larger, and the temperature energy of sample is consumed when low-temperature sample is contacted with pressure head 1, press 4, and frictional heat generation be easy to cause and connects
Contacting surface is got rusty, and will lead to the vertical non-uniform temperature of low-temperature sample, will affect the test result of low-temperature concrete stress performance.
Therefore, the pressure head 1 of universal testing machine, press 4 are protected using plexiglas steel pipe socket 10, play heat-blocking action warm absolutely, resistance
The heat source that 1 friction of disconnected sample 3 and pressure generates is easy to implement scheduled so that contact surface is consistent with low temperature environment temperature
It is required that.
Cooler bin 2 is arranged on press 4, and pressure head 1 passes through through-hole 21 and is arranged in cooler bin 2, and the outlet of cryostat device 5 is logical
It crosses inlet tube 6 to be connected to the inlet 12 of cooler bin 2, the entrance of cryostat device 5 passes through the liquid outlet of outlet tube 7 and cooler bin 2
13 connections, stress-strain data collecting instrument 8 are connected by the sample 3 in foil gauge 19 and foil gauge connecting line 11 and cooler bin 2
It connects.It is the refrigeration source of Concrete under Low using cryogenic thermostat cryostat device 5, simulates ring in a low temperature of northwest China winter
The test such as resistance to compression under concrete low temperature is completed in border, which can be accurately controlled, simple and convenient.Cryostat
Device 5 is the core component of this device, is the refrigeration source of Concrete under Low test, while being also the cold of guarantee environment temperature
Source, progress outer circulation can carry out accurate temperature regulation, temperature range -40 within the scope of certain temperature after freezing liquid is added
DEG C -0 DEG C, it can satisfy the temperature requirement that northwest China cold district is subjected to.
In the present embodiment, the freezing liquid in interlayer cavity 15 and cryostat device 5 is that water adds alcohol, water and alcohol by volume ratio
For 3:7, water adds the freezing liquid of alcohol to be the lesser medium of risk inexpensive and can be recycled.
The exit and inlet of cryostat device 5 are respectively arranged with positive displacement pump 17 and liquid feeding pump 18, inlet tube 6 and drain
The outlet of pump 17, liquid outlet 13 are connected to the entrance of liquid feeding pump 18.Cooling medium is pumped by cooler bin 2 using outer circulation
Interlayer cavity 15 in, uniformly cooled so as to the center uniformly to cooler bin 2, guarantee loaded
When 3 ambient temperature of sample reach specified low temperature.
The present embodiment also provides a kind of control low temperature environment test method, and it is described that specific step is as follows:
Step 1: being respectively mounted plexiglas steel pipe socket 10 at 4 top of press and 1 bottom of pressure head；
Step 2: cooler bin 2 is placed on press 4, pressure head 1 is protruded into 2 cabinet of cooler bin；
Step 3: by the outlet of one end of inlet tube 6 and positive displacement pump 17, by the other end of inlet tube 6 and cooler bin 2
Inlet 12 be connected to, one end of outlet tube 7 is connected to the entrance of liquid feeding pump 18, by the other end of outlet tube 7 and cooler bin 2
Liquid outlet 13 be connected to, the interface raw material band package of inlet tube 6 and outlet tube 7 carries out leak-proof measure, and freezing liquid is fallen
Enter cryostat device 5；
Cool down Step 4: the sample 3 of multiple and different water content is put into refrigerator, temperature is down to t1 DEG C, wherein -40
℃≤t1℃≤0℃；Specifically, t1 DEG C of temperature is variable, it can be the temperature in the area requirements such as -5 DEG C, -10 DEG C, -15 DEG C；
Step 5 opens cryostat device 5, the temperature of freezing liquid is transferred to t1 DEG C；
Freezing liquid after cooling is discharged into the interlayer cavity 15 of cooler bin 2 by positive displacement pump 17, to cryostat device by step 6
5 operation a period of times, the central temperature in cooler bin 2 is detected by probe temperature measurer 9；
Step 6, when the temperature in cooler bin 2 reaches t1 DEG C, the sample 3 that will have reached t1 DEG C from refrigerator takes out and sticks
Foil gauge 19 is connect by foil gauge connecting line 11 with stress-strain data collecting instrument 8, then will post and answer by foil gauge 19
Become the sample 3 of piece 19 from 14 merging cooler bin 2 of test specimen inlet and outlet, and test specimen inlet and outlet 14 are closed；
Step 7 after setting the pressing speed of universal testing machine as 0.1KN/s, opens universal testing machine and carries out compression strength
Test applies pressure to sample 3 by pressure head 1, pressurizes according to the rate of 0.1KN/s, (this until concrete damages by pressure
Universal testing machine meeting emergency stop when damaging test block by pressure)；Required data are measured by stress-strain data collecting instrument 8；Test frequency
For ten strains of 1s survey, universal testing machine can measure stress, and stress-strain data collecting instrument 8 can measure strain, and will
The data of measurement are sent to computer 20 in time and are stored；
Step 8, sets test temperature as t2 DEG C, t2 DEG C≤t1 DEG C, repeats step 4 to step 7, and so on into
Row Concrete under Low mechanical test is until temperature is down to -40 DEG C；
Step 9 after test, closes cryostat device 5, will be in the interlayer cavity 15 of cooler bin 2 by liquid feeding pump 18
Freezing liquid is discharged into cryostat device 5；
Step 10 dismantles inlet tube 6 and outlet tube 7, is cleaned up the interlayer cavity 15 of cooler bin 2 with clear water.
The present embodiment test sample size can choose 100mm*100mm*100mm, 100mm*100mm*400mm or
150mm*150mm*450mm, can test the compression strength of concrete at a temperature of different moisture content Different hypothermia, flexural strength,
Elasticity modulus, ess-strain etc..
The above method is further verified below by a specific embodiment, is tried using above-mentioned steps
The data tested are as described below:
(1) raw material are tested
Cement: Ji Dong P.O42.5 ordinary portland cement；Flyash: I grade of flyash of Erdos Jungar Banner power plant；
Coarse aggregate: Central Inner Mongolia float stone gathers materials, particle size range 9.5mm~22.5mm float stone；Fine aggregate: natural river sand, fineness
Modulus 2.55, clay content 2.17%, bulk density 1590kg/m3, apparent density 2550kg/m3, moisture content 2.31%, granular-grade
With good；Water-reducing agent: naphthalene system ordinary water-reducing agent, water-reducing rate 18% do not have action of rust to reinforcing bar；Water: ordinary tap water.
According to raw material preparation strength grade LC30 concrete, match ratio is shown in Table 1.
1 natural pumice concrete mix of table and performance
(2) 28 days age concretes will be conserved and carry out full water as test block, carry out cooling to 0 DEG C according to step 4, according to
Cooler bin 2 is cooled to 0 DEG C by step 5, is tested according to the compressive strength that step 6 and seven carry out 0 DEG C.Then sample is distinguished again
- 5 DEG C, -10 DEG C, -15 DEG C, -20 DEG C are dropped to, above-mentioned test is repeated.The compression strength for measuring natural pumice concrete under low temperature becomes
Rate is shown in Fig. 4, and natural pumice concrete stress strain curve is shown in Fig. 5 under low temperature.
Fig. 4 be influence of the Different hypothermia temperature to LC30 strength concrete compression strength, as can be seen from the figure -5 DEG C, -
When 10 DEG C, -15 DEG C, -20 DEG C compression strength compared with 0 DEG C of compressive strength be respectively increased 0%, 3.3%, 4.6%, 36.3%,
40.4%, when -20 DEG C≤t≤0 DEG C, with the reduction of temperature, concrete crushing strength is gradually in increase tendency.This is because
With the reduction of temperature, gradually ice crystal microsegregation (MILS) effect occurs the water in hole for frozen, and the increase of ice body mentions
The high intensity of natural pumice concrete.Fig. 5 is natural pumice concrete stress strain curve under low temperature, it can be seen that not equality of temperature
Under degree, identical match ratio sample stress-strain diagram is different；As can be seen from the test results with the reduction of temperature, sample is destroyed
There are a plurality of vertical rifts first in surface, as the increase of pressure gradually extends, develops as through check, causes natural pumice mixed
Solidifying soil destroys, and with explosion sound when destruction, brittle break is presented.At room temperature, the frost of white is presented in surface for test specimen exposure.
This experimental provision guarantees the low temperature environment of concrete and is avoided that the loss of concrete temperature in the detection process.
Embodiment described above is only the preferable specific embodiment of the utility model, and the protection scope of the utility model is not
It is limited to this, anyone skilled in the art can become apparent in the technical scope that the utility model discloses
Technical solution simple change or equivalence replacement, belong to the protection scope of the utility model.
Claims (3)
1. a kind of regulation low temperature environment testing apparatus, which is characterized in that including universal testing machine, cooler bin (2), cryostat device
(5), probe temperature measurer (9) and stress-strain data collecting instrument (8)；
The cooler bin (2) is formed by welding by double-deck stainless steel, and the interlayer that double-deck stainless steel constitutes the cooler bin (2) is empty
Chamber (15), the bottom of the cooler bin (2) are Openworks shape, offer through-hole (21), the cooling at the top of the cooler bin (2)
Case (2) side is provided with inlet (12) by close over, and cooler bin (2) other side is provided with liquid outlet close to lower section
(13), the inlet (12) and liquid outlet (13) are connected to the interlayer cavity (15), and the liquid outlet (13) is ipsilateral also
Test specimen inlet and outlet (14) are offered, are provided with the sealing side walls hinged with the cooler bin (2) at the test specimen inlet and outlet (14)
Door (22), four walls of the cooler bin (2) are provided with thermal insulation thermal insulation board (16), and the probe temperature measurer (9) is arranged described cold
But the probe setting of case (2) side wall, the probe temperature measurer (9) is internal in the cooler bin (2), the cryostat device (5) and
Interlayer cavity is provided with freezing liquid in (15)；
The universal testing machine includes the pressure head (1) of press (4) and setting above the press (4), press (4) top
It being provided with plexiglas steel pipe socket (10) with the pressure head (1) bottom, the cooler bin (2) is arranged on the press (4),
The pressure head (1) passes through the through-hole (21) and is arranged in the cooler bin (2), the outlet of the cryostat device (5) by into
Liquid pipe (6) is connected to the inlet (12) of the cooler bin (2), and the entrance of the cryostat device (5) passes through outlet tube (7) and institute
Liquid outlet (13) connection of cooler bin (2) is stated, the stress-strain data collecting instrument (8) passes through foil gauge (19) and foil gauge
Connecting line (11) is connect with the sample (3) in the cooler bin (2).
2. regulation low temperature environment testing apparatus according to claim 1, which is characterized in that the freezing liquid is that water adds wine
Essence.
3. regulation low temperature environment testing apparatus according to claim 1, which is characterized in that the cryostat device (5) goes out
Mouthful place and inlet are respectively arranged with positive displacement pump (17) and liquid feeding pump (18), the inlet tube (6) and the positive displacement pump (17)
Outlet, the liquid outlet (13) are connected to the entrance of the liquid feeding pump (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822246351.7U CN209707274U (en) | 2018-12-28 | 2018-12-28 | A kind of regulation low temperature environment testing apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822246351.7U CN209707274U (en) | 2018-12-28 | 2018-12-28 | A kind of regulation low temperature environment testing apparatus |
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| Publication Number | Publication Date |
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| CN209707274U true CN209707274U (en) | 2019-11-29 |
Family
ID=68638765
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| CN201822246351.7U Expired - Fee Related CN209707274U (en) | 2018-12-28 | 2018-12-28 | A kind of regulation low temperature environment testing apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470578A (en) * | 2018-12-28 | 2019-03-15 | 内蒙古工业大学 | A kind of regulation low temperature environment testing apparatus and test method |
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2018
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470578A (en) * | 2018-12-28 | 2019-03-15 | 内蒙古工业大学 | A kind of regulation low temperature environment testing apparatus and test method |
| CN109470578B (en) * | 2018-12-28 | 2024-02-27 | 内蒙古工业大学 | Test device and test method for regulating low-temperature environment |
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