CN103616317B - A kind of fully-automatic equipment of assaying reaction heap material helium diffuse coefficient and method - Google Patents
A kind of fully-automatic equipment of assaying reaction heap material helium diffuse coefficient and method Download PDFInfo
- Publication number
- CN103616317B CN103616317B CN201310683037.4A CN201310683037A CN103616317B CN 103616317 B CN103616317 B CN 103616317B CN 201310683037 A CN201310683037 A CN 201310683037A CN 103616317 B CN103616317 B CN 103616317B
- Authority
- CN
- China
- Prior art keywords
- helium
- sample
- vacuum
- operation valve
- test
- 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.)
- Active
Links
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The invention provides a kind of fully-automatic equipment and method of assaying reaction heap material helium diffuse coefficient.Equipment comprises air source control valve, mass flow controller, flowrate control valve, low vacuum side vacuum gauge, venting operation valve, data collecting card, test pool operation valve, sample test pond, testing sample, high vacuum side vacuum gauge, vacuum pump, vacuum pump operation valve, helium detecting device, computing machine, helium source of the gas, relay and pipeline etc.Test macro comprises data collecting card and computing machine.Computing machine receives the data of both sides vacuum gauges, mass flow controller and helium detecting device and preserves, analyzes, and carries out process control by controlling each parts to system simultaneously, finally realizes the also Output rusults of test automatically.This equipment and assay method can realize the automatic test to reactor material helium diffuse coefficient, solve testing apparatus complicated operation in the past, the problems such as test result poor repeatability.
Description
Technical field
The present invention relates to a kind of fully-automatic equipment and the method that measure material helium diffuse coefficient, particularly relate to a kind of fully-automatic equipment and method of assaying reaction heap material helium diffuse coefficient.
Background technology
That its helium diffuse coefficient is as far as possible low to the requirement of material (the first wall graphite, charcoal charcoal and composite material of silicon carbide) in fusion reactor.If helium permeability is crossed material and is entered in plasma in fusion reactor, fusion fuel will be diluted, the loss of radiation can make the temperature of plasma reduce, this will have a strong impact on the performance of reactor, therefore the height of helium diffuse (diffusion refers to that helium is under concentration gradient effect, and helium gas molecules reaches a kind of physical process of balance to low concentration region free migration by various medium from high concentration region) coefficient is one of leading indicator of fusion reactor quality of materials.Present stage has following several to the method that material carries out helium diffuse coefficient determination: half Time Method, prediction method and time lag method etc.
Half Time Method is that infiltration gas is emptying, then this gas of a side contacts of material in handle component, be adjusted to isopiestic state again thus to equilibrium state, try to achieve the time reached required for osmotic equilibrium state half the time, coefficient of diffusion is obtained again by this value, its advantage is that precision is high, and shortcoming is that the test duration is long, not easily balances by extraneous factor interference such as temperature; Prediction method corresponds to the Pasternak solution of Fick curve, and this method prediction is more convenient, the time fast more next than half Time Method, but for the material of low coefficient of diffusion, the interference of sensor and environment can make the precision of prediction method lower; Time lag, method was a kind of transformation determination method, also " high vacuum method " is claimed, more conventional in diffusion coefficients, the method refers to when high vacuum condition and side test gas almost do not have, by calculating coefficient of diffusion to the mensuration of " retardation time " when reaching equilibrium state, its advantage is that the test duration is short, required variable is few, shortcoming is high to the requirement of system and sensor, need Real-time Monitoring Data, the error of data is easy to affect last test result, and measuring accuracy can not ensure.
Therefore, needing badly and existing equipment and assay method are optimized, designing and developing a kind of full-automatic testing equipment for investigating the helium diffuse coefficient of reactor material.
Summary of the invention
The object of the present invention is to provide a kind of fully-automatic equipment and method of assaying reaction heap material helium diffuse coefficient.This Apparatus and method for can helium diffuse coefficient that is convenient, fast, assaying reaction heap material accurately and efficiently, for research and development, production reactor material provide science reliable test data.
For achieving the above object, the invention provides a kind of fully-automatic equipment of assaying reaction heap material helium diffuse coefficient, it is characterized in that, this equipment comprises air source control valve, mass flow controller, flowrate control valve, low vacuum side vacuum gauge, venting operation valve, data collecting card, test pool operation valve, sample test pond, testing sample, high vacuum side vacuum gauge, vacuum pump, vacuum pump operation valve, helium detecting device, computing machine, helium source of the gas, relay (not marking in figure) and pipeline etc.
Described helium source of the gas is connected with the import of mass flow controller by pipeline, and controls source of the gas supply by air source control valve.
Outlet, low vacuum side vacuum gauge and the operation valve of exitting of low vacuum side, described sample test pond and mass flow controller are connected, and mass flow controller outlet is controlled by flowrate control valve; High vacuum side, described sample test pond is connected with vacuum pump, helium detecting device and high vacuum side vacuum gauge, and vacuum pump operation valve controls vacuum pump to the effect of high vacuum side, sample test pond; The high low vacuum both sides in described sample test pond realize connected sum by test pool operation valve and separate.
Described computing machine is connected by signal wire with mass flow controller, data collecting card and helium detecting device; Described computing machine is controlled mass flow controller, helium detecting device by communications protocol, and to the data analysis process come from mass flow controller, the transmission of helium detecting device.
The output terminal of described relay is connected with air source control valve, flowrate control valve, venting operation valve, test pool operation valve, vacuum pump, vacuum pump operation valve and helium detecting device; The input end of described relay is connected with the output switch parameter end of described data collecting card.
The AD end of described data collecting card is connected with the signal output part of low vacuum side vacuum gauge, high vacuum side vacuum gauge.Described low vacuum side vacuum gauge and high vacuum side vacuum gauge pass data in data collecting card by signal wire, are finally transferred to computing machine for display, analysis and treament.
A method for assaying reaction heap material helium diffuse coefficient, it comprises the following steps:
A. helium source of the gas is opened;
B. densified sample is put into sample test pond and start test;
C. computing machine is by software automatic closing gas source operation valve, venting operation valve and helium detecting device, opens flowrate control valve, test pool operation valve, vacuum pump and vacuum pump operation valve; Reach after scheduled pressure value until low vacuum wall pressure and close vacuum pump, vacuum pump operation valve and test pool operation valve, and open air source control valve, helium detecting device;
D. computing machine makes the force value of low vacuum side, sample test pond remain on pressure set points by the automatic quality of regulation flow controller of software;
E., after the value of the value of low vacuum side vacuum gauge, the value of high vacuum side vacuum gauge and helium detecting device is relatively stable, computer recording also stores the value of low vacuum side vacuum gauge, the value of high vacuum side vacuum gauge and the value of helium detecting device;
F. testing sample is put into sample test pond, repeat the step of C, D and E, and record data;
G. all raw data that computer recording is preserved are brought in formula, utilize the coefficient of diffusion of following formulae discovery helium in testing sample:
H. P in formula
h(Pa) be the value of low vacuum side vacuum gauge, A (cm
2) be the area of testing sample of test, d (cm) be the thickness of the testing sample tested; C
0for carrying out testing the value that the helium detecting device that obtains records after densified sample is put into sample test pond; C
1for carrying out testing the value that the helium detecting device that obtains records after testing sample is put into sample test pond.Finally obtain test result and analyze the relation of itself and each group of low vacuum side pressure value, high vacuum side pressure value.
In step, described helium source of the gas gas injection pressure is 0.2-1MPa, is preferably 0.2-0.5MPa.
In stepb, described densified sample coefficient of diffusion is 0-10
-10cm
2/ sec.
In step B and F, the area of described densified sample and testing sample is 0.1-100cm
2, be preferably 0.5-10cm
2; Thickness is 0.01-10cm, is preferably 0.05-1cm.
In step C, described helium detecting device is mass spectrometer or helium leak check instrument; Described scheduled pressure value is 0.01-1000Pa, is preferably 1-1000Pa.
In step D, the full scale of described mass flow controller is 1-10000mL/min, is preferably 1-100mL/min; The flow value of described mass flow controller is set automatically by test procedure; The pressure set points that low vacuum side, described sample test pond keeps is 0.01-1000kPa, is preferably 1-500kPa.
In addition, by increasing test pool quantity, can said method be adopted, according to described steps A-H, multiple sample be detected, to meet the series of comparisons of multiple sample.
Beneficial effect
(1) reactor material helium diffuse coefficient determination equipment provided by the invention and assay method can helium diffuse coefficients that is convenient, fast, assaying reaction heap material accurately and efficiently, for research and development, production reactor material provide science reliable test data.
(2) the present invention utilizes mass flow controller and helium detecting device to achieve direct mensuration to helium diffuse quality, meets the test of size coefficient of diffusion, has test specification wide, the advantages such as precision is high, speed is fast.
Describe the present invention below in conjunction with specific embodiment.Protection scope of the present invention is not limited with embodiment, but is limited by claim.
Accompanying drawing explanation
Below in conjunction with the drawings and the specific embodiments, the present invention is described in further detail.
Fig. 1 is shown as reactor material helium diffuse coefficient determination experimental facilities structural drawing of the present invention.In Fig. 1: 1, air source control valve; 2, mass flow controller; 3, flowrate control valve; 4, low vacuum side vacuum gauge; 5, venting operation valve; 6, data collecting card; 7, test pool operation valve; 8, sample test pond low vacuum side; 9, sample test pond; 10, testing sample; 11, sample test pond high vacuum side; 12, high vacuum side vacuum gauge; 13, vacuum pump; 14, vacuum pump operation valve; 15, helium detecting device; 16, computing machine; 17, helium source of the gas.
Embodiment
Embodiment 1
Present embodiments provide a kind of fully-automatic equipment of assaying reaction heap material helium diffuse coefficient, this equipment comprises air source control valve 1, mass flow controller 2, flowrate control valve 3, low vacuum side vacuum gauge 4, venting operation valve 5, data collecting card 6, test pool operation valve 7, sample test pond 9, testing sample 10, high vacuum side vacuum gauge 12, vacuum pump 13, vacuum pump operation valve 14, helium leak check instrument 15, computing machine 16, helium source of the gas 17, relay (not marking in figure) and pipeline etc.
Described helium source of the gas 17 is connected by the import of pipeline with mass flow controller 2, and controls source of the gas supply by air source control valve 1.
The outlet of low vacuum side, described sample test pond 8 and mass flow controller 2, low vacuum side vacuum gauge 4 and operation valve 5 of exitting are connected, and mass flow controller 2 is exported and controlled by flowrate control valve 3; High vacuum side, described sample test pond 11 is connected with vacuum pump 13, helium leak check instrument 15 and high vacuum side vacuum gauge 12, and vacuum pump operation valve 14 controls the effect of high vacuum side, vacuum pump 13 pairs of sample test ponds 11; The high low vacuum both sides in described sample test pond realize connected sum by test pool operation valve 7 and separate.
Described computing machine 16 is connected by signal wire with mass flow controller 2, data collecting card 6 and helium leak check instrument 15.
The output terminal of described relay is connected with air source control valve 1, flowrate control valve 3, operation valve 5 of exitting, test pool operation valve 7, vacuum pump 13, vacuum pump operation valve 14 and helium leak check instrument 15; The signal input part of described relay is connected with the output switch parameter end of described data collecting card 6.
The AD end of described data collecting card 6 is connected with the signal output part of low vacuum side vacuum gauge 4, high vacuum side vacuum gauge 12.
The present embodiment utilizes said apparatus to test sample cated on graphite matrix, and step is as follows:
Open helium source of the gas 17, keep source of the gas gas injection pressure to be 0.5MPa;
Be 1.54cm by area
2, thickness is that the densified sample of 0.1cm is put into sample test pond 9 and started test;
Computing machine 16 automatic closing gas source operation valve 1, venting operation valve 5 and helium leak check instrument 15, open flowrate control valve 3, test pool operation valve 7, vacuum pump 13 and vacuum pump operation valve 14, after low vacuum side vacuum gauge pressure reaches 500Pa, close vacuum pump 13, vacuum pump operation valve 14 and test pool operation valve 7, and open air source control valve 1, helium leak check instrument 15;
Computing machine 16 makes the force value of the low vacuum side 8 in sample test pond remain on pressure set points by the automatic quality of regulation flow controller 2 of software to control helium speed, and the full scale of mass flow controller is 7mL/min;
After the value of the value of low vacuum side vacuum gauge 4, the value of high vacuum side vacuum gauge 12 and helium leak check instrument 15 is relatively stable, computing machine 16 records and stores the value of low vacuum side vacuum gauge 4, the value of high vacuum side vacuum gauge 12, the value of helium leak check instrument 15;
Be 1.54cm by area to be measured
2, thickness be 0.1cm graphite matrix on cated sample 10 put into sample test pond 9, repeat the above-mentioned step that the densified sample of same shape is tested, and record data;
All raw data computing machine 16 being recorded preservation are brought in formula, utilize the coefficient of diffusion of following formulae discovery helium in sample 10:
P in formula
h(Pa) be the value of low vacuum side vacuum gauge 4, A (cm
2) be the area of sample 10, the thickness that d (cm) is sample 10; C
0for carrying out testing the value that the helium leak check instrument 15 that obtains records after densified sample is put into sample test pond 9; C
1for carrying out testing the value that the helium leak check instrument 15 that obtains records after sample 10 is put into sample test pond 9; Finally obtain test result and analyze the relation of itself and each group of low vacuum side pressure value, high vacuum side pressure value.
In the present embodiment, when different pressures setting value is carried out to same sample, after carrying out the diffusion coefficients under each pressure set points, then carry out the diffusion coefficients of next pressure set points.
In the present embodiment, the value of the helium transit dose of sample under different low vacuum wall pressure setting value 10kPa, 15kPa, 25kPa, 35kPa, 40kPa, 50kPa, 60kPa, 80kPa is respectively 2.5 × 10
-7pa.m
3/ sec, 3.0 × 10
-7pa.m
3/ sec, 4.1 × 10
-7pa.m
3/ sec, 5.6 × 10
-7pa.m
3/ sec, 6.4 × 10
-7pa.m
3/ sec, 7.8 × 10
-7pa.m
3/ sec, 9.4 × 10
-7pa.m
3/ sec, 12.0 × 10
-7pa.m
3/ sec, in the test result of this sample helium transit dose and low vacuum side pressure value almost linear, along with the increase of low vacuum side pressure value, helium transit dose increases gradually.The coefficient of diffusion result of final helium in this sample is 1.13 × 10
-6cm
2/ sec.
Embodiment 2
The proving installation of the present embodiment and method of testing are with embodiment 1, and except mass spectrometer selected by helium detecting device, testing sample selects area to be 5cm
2, thickness is the graphite matrix sample of 0.3cm.
The present embodiment is tested graphite matrix sample, and finally obtaining coefficient of diffusion is 9.96 × 10
-3cm
2/ sec.
Claims (9)
1. an assaying reaction piles the method using material helium diffuse coefficient, it is characterized in that, the method comprises air source control valve (1), mass flow controller (2), flowrate control valve (3), low vacuum side vacuum gauge (4), venting operation valve (5), data collecting card (6), test pool operation valve (7), sample test pond (9), testing sample (10), high vacuum side vacuum gauge (12), vacuum pump (13), vacuum pump operation valve (14), helium detecting device (15), computing machine (16), helium source of the gas (17), relay (not marking in figure) and pipeline,
I. described helium source of the gas (17) is connected by the import of pipeline with mass flow controller (2), and controls source of the gas supply by air source control valve (1);
Ii. outlet, low vacuum side vacuum gauge (4) of low vacuum side, described sample test pond (8) and mass flow controller (2) and operation valve (5) of exitting are connected, and mass flow controller (2) outlet is controlled by flowrate control valve (3); High vacuum side, described sample test pond (11) is connected with vacuum pump (13), helium detecting device (15) and high vacuum side vacuum gauge (12), and vacuum pump operation valve (14) controls vacuum pump (13) to the effect of high vacuum side, sample test pond (11); The high low vacuum both sides in described sample test pond are vacuumized sample both sides to realize vacuum pump (13) by the connected sum separation of test pool operation valve (7);
Iii. described computing machine (16) is connected by signal wire with mass flow controller (2), data collecting card (6) and helium detecting device (15);
Iv. the output terminal of described relay is connected with air source control valve (1), flowrate control valve (3), operation valve (5) of exitting, test pool operation valve (7), vacuum pump (13), vacuum pump operation valve (14) and helium detecting device (15); The input end of described relay is connected with the output switch parameter end of described data collecting card (6);
V. the AD end of described data collecting card (6) is connected with the signal output part of low vacuum side vacuum gauge (4), high vacuum side vacuum gauge (12);
Vi. its method of testing comprises the following steps:
A. helium source of the gas (17) is opened;
B. densified sample is put into sample test pond (9) and start test;
C. computing machine (16) is by software automatic closing gas source operation valve (1), venting operation valve (5) and helium detecting device (15), opens flowrate control valve (3), test pool operation valve (7), vacuum pump (13) and vacuum pump operation valve (14); Reach after scheduled pressure value until low vacuum wall pressure and close vacuum pump (13), vacuum pump operation valve (14) and test pool operation valve (7), and open air source control valve (1), helium detecting device (15);
D. computing machine (16) makes the force value of low vacuum side, sample test pond (8) remain on pressure set points by the automatic quality of regulation flow controller (2) of software;
E. after the value of the value of low vacuum side vacuum gauge (4), the value of high vacuum side vacuum gauge (12) and helium detecting device (15) is relatively stable, computing machine (16) records and stores the value of low vacuum side vacuum gauge (4), the value of high vacuum side vacuum gauge (12) and the value of helium detecting device (15);
F. testing sample (10) is put into sample test pond (9), repeat the step of C, D and E, and record data;
G. all raw data that computing machine (16) record is preserved are brought in formula, utilize the coefficient of diffusion of following formulae discovery helium in testing sample (10):
H. P in formula
h(Pa) be the value of low vacuum side vacuum gauge (4), A (cm
2) be the area of testing sample (10) of test, d (cm) be the thickness of the testing sample (10) tested; C
0for carrying out testing the value that the helium detecting device (15) that obtains records after densified sample being put into sample test pond (9); C
1for carrying out testing the value that the helium detecting device (15) that obtains records after testing sample (10) is put into sample test pond (9).
2., in the method for claim 1, described helium detecting device (15) is mass spectrometer or helium leak check instrument.
3. in the method for claim 1, wherein in step, described helium source of the gas (17) gas injection pressure is 0.2MPa-1MPa.
4. in the method for claim 1, wherein in stepb, described densified sample coefficient of diffusion is 0cm
2/ s-10
-10cm
2/ s.
5., in the method for claim 1, wherein in step B and F, the area of described densified sample and testing sample (10) is 0.1cm
2-100cm
2; Thickness is 0.01cm-10cm.
6., in the method for claim 1, wherein in step C, described scheduled pressure value is 0.01Pa-1000Pa.
7. in the method for claim 1, wherein in step D, the full scale of described mass flow controller (2) is 1mL/min-10000mL/min.
8. in the method for claim 1, wherein in step D, described mass flow controller (2) is set by test procedure automatically with stable sample low vacuum wall pressure.
9. the pressure set points that in the method for claim 1, wherein in step D, low vacuum side, described sample test pond (8) keeps is 0.01kPa-1000kPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310683037.4A CN103616317B (en) | 2013-12-16 | 2013-12-16 | A kind of fully-automatic equipment of assaying reaction heap material helium diffuse coefficient and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310683037.4A CN103616317B (en) | 2013-12-16 | 2013-12-16 | A kind of fully-automatic equipment of assaying reaction heap material helium diffuse coefficient and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103616317A CN103616317A (en) | 2014-03-05 |
| CN103616317B true CN103616317B (en) | 2016-03-30 |
Family
ID=50167023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310683037.4A Active CN103616317B (en) | 2013-12-16 | 2013-12-16 | A kind of fully-automatic equipment of assaying reaction heap material helium diffuse coefficient and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103616317B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106290117B (en) * | 2016-10-19 | 2023-11-03 | 中国科学院光电研究院 | Device and method for testing radiation induced gas permeation of material |
| CN108344674B (en) * | 2017-01-25 | 2023-12-26 | 济南思克测试技术有限公司 | Automatic gas permeability testing system and method based on artificial intelligence |
| CN107389498B (en) * | 2017-07-07 | 2024-01-12 | 金华职业技术学院 | Method for measuring methane transmittance |
| CN113791005A (en) * | 2021-08-18 | 2021-12-14 | 广西电网有限责任公司玉林供电局 | Test device and method for measuring diffusion degree of insulating medium in sealing rubber |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5107696A (en) * | 1990-12-19 | 1992-04-28 | Modern Controls, Inc. | Device for measuring gas permeation |
| WO2006093935A3 (en) * | 2005-02-28 | 2007-03-15 | Advanced Tech Materials | Apparatus and process for leak-testing and qualification of fluid dispensing vessels |
| CN101118197A (en) * | 2007-09-06 | 2008-02-06 | 中国核动力研究设计院 | High-temperature high pressure helium leak detection method and apparatus for detecting leakage thereof |
| CN101408493A (en) * | 2008-11-24 | 2009-04-15 | 中国科学院武汉岩土力学研究所 | Method and apparatus for measuring adsorbance-deformation-permeability coefficients of material |
| US20090201500A1 (en) * | 2008-02-13 | 2009-08-13 | Yixiang Duan | Hydrogen sensor |
| CN102147348A (en) * | 2011-01-25 | 2011-08-10 | 中国科学院山西煤炭化学研究所 | Device and method for measuring gas permeation in coal |
| CN102980837A (en) * | 2012-11-16 | 2013-03-20 | 中国石油天然气股份有限公司 | Device and measuring method for hydrocarbon diffusion coefficient in rocks under high temperature and high pressure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3349655B2 (en) * | 1997-09-22 | 2002-11-25 | 株式会社日立製作所 | Method and apparatus for inspecting leak position of thin tube |
-
2013
- 2013-12-16 CN CN201310683037.4A patent/CN103616317B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5107696A (en) * | 1990-12-19 | 1992-04-28 | Modern Controls, Inc. | Device for measuring gas permeation |
| WO2006093935A3 (en) * | 2005-02-28 | 2007-03-15 | Advanced Tech Materials | Apparatus and process for leak-testing and qualification of fluid dispensing vessels |
| CN101118197A (en) * | 2007-09-06 | 2008-02-06 | 中国核动力研究设计院 | High-temperature high pressure helium leak detection method and apparatus for detecting leakage thereof |
| US20090201500A1 (en) * | 2008-02-13 | 2009-08-13 | Yixiang Duan | Hydrogen sensor |
| CN101408493A (en) * | 2008-11-24 | 2009-04-15 | 中国科学院武汉岩土力学研究所 | Method and apparatus for measuring adsorbance-deformation-permeability coefficients of material |
| CN102147348A (en) * | 2011-01-25 | 2011-08-10 | 中国科学院山西煤炭化学研究所 | Device and method for measuring gas permeation in coal |
| CN102980837A (en) * | 2012-11-16 | 2013-03-20 | 中国石油天然气股份有限公司 | Device and measuring method for hydrocarbon diffusion coefficient in rocks under high temperature and high pressure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103616317A (en) | 2014-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103616317B (en) | A kind of fully-automatic equipment of assaying reaction heap material helium diffuse coefficient and method | |
| US4566326A (en) | Automatic volumetric sorption analyzer | |
| CA2897679C (en) | Apparatus and methodology for measuring properties of microporous material at multiple scales | |
| CN106885742B (en) | Triaxial apparatus is permeated in a kind of novel saturation and unsaturation | |
| CN104237283B (en) | Method and system for detecting adsorption capacity of solid sample to hydrogen-atom-containing gas | |
| CN201819853U (en) | Novel osmotic suction controlled comprehensive tester for unsaturated soil | |
| CN108195743B (en) | Shale seepage and absorption measuring device and measuring method | |
| CN108827853B (en) | Nuclear magnetic resonance-based tight reservoir rock electric measurement device and measurement method | |
| CN106501155A (en) | Rock core gas liquid two purpose permeability test device and reservoir damage evaluation method | |
| CN207379891U (en) | Fractured shale gas-water phases flowing fracture condudtiviy evaluating apparatus | |
| Zhang et al. | Evaluation and application of the transient-pulse technique for determining the hydraulic properties of low-permeability rocks—Part 2: experimental application | |
| CN111239023B (en) | Method for testing rock compression coefficient under high-temperature and high-pressure conditions | |
| JPH10108855A (en) | Method and device for quickly estimating storage life of negative pressure blood collection tube | |
| CN209745750U (en) | Deformation-adsorption capacity synchronous testing device in gas adsorption process of coal body | |
| CN107036899B (en) | Measure coarse-grained soil K0The large-scale K of value0Consolidation apparatus | |
| CN104897514A (en) | Device for measuring danks surface gas adsorption and danks desorption curves | |
| CN105717027A (en) | Test device for rock permeability by simulating underground deep rock environment | |
| CN113358683B (en) | Water flooding experimental device and method for researching core end face effect | |
| CN102590016B (en) | Measurement method of soil moisture characteristic curve measurement device | |
| CN103616129A (en) | Automatic calibration method for tension and compression residual stress ultrasonic detection system | |
| CN112505085A (en) | Method for measuring porosity effective stress coefficient based on nuclear magnetic resonance | |
| CN209821099U (en) | Multifunctional compact gas reservoir dynamic parameter joint measurement device based on nuclear magnetic resonance | |
| CN203732397U (en) | Rapid emulsion explosive density detector | |
| CN203025067U (en) | Low-osmosis rock sample permeability tester | |
| CN110836799A (en) | Suction control type rapid unsaturated soil sample preparation control system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |