CN101358917A - Multifunction seepage experimental apparatus for loose crushing medium - Google Patents
Multifunction seepage experimental apparatus for loose crushing medium Download PDFInfo
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- CN101358917A CN101358917A CN 200810143109 CN200810143109A CN101358917A CN 101358917 A CN101358917 A CN 101358917A CN 200810143109 CN200810143109 CN 200810143109 CN 200810143109 A CN200810143109 A CN 200810143109A CN 101358917 A CN101358917 A CN 101358917A
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Abstract
The invention discloses a loose broken-medium multi-function seepage tester, comprising a cylinder. Two rows of vertical mounting holes for installing a tensiometer and a manometer are arranged on the wall of the cylinder from top down. A cover plate provided with a turnabout shower is arranged at the top end of the cylinder; the cover plate is connected with the flange arranged at the top end of the cylinder by a connecting bolt; a packing washer is arranged between the cover plate and the flange; a temperature-testing orifice joint, a shower inlet joint, a water inlet joint and an air inlet joint are arranged on the cover plate respectively. A cylindrical base is connected with the flange at the lower end of the cylinder by a bolt; a packing washer is arranged between the lower end of the cylinder and the cylinder base; a clapboard provided with a plurality of exhaust outlets is arranged at the upper end of the base of the cylindrical base; a screen is arranged on the clapboard; in the cylinder, a layer of smooth pebbles are arranged on the screen. Four air outlet joints are evenly arranged at the upper part of the cylindrical wall of the cylinder base, and four water outlet joints are evenly arranged at the lower part of the cylindrical wall of the cylinder base.
Description
Technical field
The present invention relates to a kind of device that is used for doing the loose crushing medium seepage tests, particularly a kind of multi-functional device that is used for doing loose crushing medium gas-liquid two-phase fluid seepage tests.
Background technology
Loose crushing medium is a kind of of porous medium, is the heterogeneous system that contains solid phase, and other can be gas phase or liquid phase mutually, solid is called solid skeletal mutually, and other parts are called space or hole, and solid phase spreads all over whole medium, have bigger specific surface, the many holes in the space are interconnected.In general, loose crushing medium is other porous medium such as soil, crack rock etc. relatively, and the one, particle grading distribution is extremely inhomogeneous, and the 2nd, grain diameter is bigger, and the 3rd, do not exist between particle to connect or only exist weak the connection.The example of occurring in nature loose crushing medium is a lot, piles, is used for the enrockment of engineerings such as rock-fill dams, railway and highway subgrade, Bridge Pier, soft based process and high embankment etc. as the ore deposit that forms after the rock body quality of mine explosion.Thereby the Seepage problems of loose crushing medium is with a wide range of applications, and is one of the research focus in seepage flow field.Pore filling type of fluid according to loose crushing medium can be divided into the Seepage problems of this type of medium hold-up seepage flow, liquid unsaturated seepage, gas saturated flow and gas-liquid two-phase fluid seepage flow.
Gas-liquid two-phase fluid seepage flow is the common flow operating modes of industrial circle such as oil, chemical industry, power, but the measuring method of gas-liquid two-phase fluid flow is the problem that does not satisfactorily resolve as yet in the world always.The research of gas-liquid two-phase fluid seepage flow, along with industrial technology need grow up, forties in last century particularly, because the rise of power engineering, chemical engineering, petrochemical industry project, atomic energy engineering, aerospace engineering and environmental engineering, the research of gas-liquid two-phase fluid seepage flow comes into one's own day by day, and has formed complete basic applied disciplines.
At present, both at home and abroad in loose crushing medium seepage flow research field, carrying out more is Coupling Research about water and stress.Still nobody conducts a research about gas-liquid two-phase fluid seepage flow in the loose crushing medium, Given this, develops the blank that a kind of multi-functional loose crushing medium gas-liquid two-phase fluid seepage flow test device can be filled up this respect research, is of great immediate significance.
Summary of the invention
The objective of the invention is provides a kind of multifunction test device for research loose crushing medium gas-liquid two-phase fluid seepage flow.
Technical scheme of the present invention is: a kind of loose crushing medium multifunction seepage test unit, it comprises a cylindrical shell of being made up of upper shell and lower shell, link together by flange, coupling bolt between upper shell and the lower shell, between upper shell and lower shell, also be provided with packing washer.On the barrel of cylindrical shell, be equipped with the mounting hole that has atresia rubber plug and porose rubber plug that two rows erect from top to bottom, a row erects is used for installing tensiometer, and what a row erect is the air pressure gaging hole, is used for installing rain glass.The top of cylindrical shell is provided with a cover plate that has back-shaped shower, back-shaped shower is installed in the cylindrical shell of cover plate lower surface, back-shaped shower is provided with spray apertures, cover plate links together by coupling bolt and the flange that is located at cylinder top, be provided with packing washer between cover plate and the flange, also be respectively equipped with temperature-measuring port joint, shower water inlet joint, water inlet joint and air inlet connections at the upper surface of cover plate.Wherein, shower water inlet joint joins with the back-shaped shower that is installed in the cover plate lower surface cylindrical shell, and temperature-measuring port joint, water inlet joint and air inlet connections communicate with cylinder lumen.Lower end at cylindrical shell is connected with a cylindrical shell base by coupling bolt and flange, is provided with packing washer between the lower end of cylindrical shell and the cylindrical shell base.The upper end of cylindrical shell base is provided with the dividing plate in piece of cloth set solid water hole, and the aperture of osculum is that 1cm, spacing are 8mm on the dividing plate.Be provided with a screen pack on dividing plate, screen pack is 200 purpose metal screens.In cylindrical shell, be furnished with the thick smooth cobble of one deck 8-15mm above the screen pack, the diameter of cobble is 3-6mm.Be equipped with four gas outlet joints on the barrel top of cylindrical shell base, be equipped with four water delivering orifice joints in the barrel bottom of cylindrical shell base, when guaranteeing that inflow is big in the experimentation draining unobstructed, be unlikely to the penetrating power of medium is exerted an influence.
The further technical scheme of the present invention is: the inwall at cylindrical shell is provided with the thick sand-cement slurry of one deck 5mm, scribbles one deck epoxy resin on the sand-cement slurry.Doing this special processing at the inwall of cylindrical shell, is in order to reduce the wall effect in the cylindrical shell, because smooth inwall is easy to generate random little shape gas circulation in the cylindrical shell, to increase air resistance.
The present invention more further technical scheme be: the ratio of cylindrical shell length and the radius of cylinder internal diameter be that one dimension is mobile greater than 3: 1 to guarantee fluid flowing in test medium.
The tensiometer that this experimental provision uses is the DLS-II type tensiometer that Chinese Academy of Sciences's geographical science and The Study on Resources are produced, and in experiment of single-phase liquid unsaturated seepage and gas-liquid two-phase fluid seepage flow experimentation, can effectively realize the matric suction measurement; The rain glass that uses is the KONICS series rain glass that Korea S produces, and cooperates the air pressure in the homemade probe measurement medium, in experiment of single phase gas seepage flow and gas-liquid two-phase fluid seepage flow experimentation, reaches ideal effect.
When doing experiment, whole experiment device places on the platform balance, can monitor whether formed the stable percolation process in the seepage tests process by this platform balance.Inlet opening joint on the cover plate of cylindrical shell upper end is connected two cover water inlet systems respectively with shower water inlet joint.
In the single-phase liquid saturated flow experimentation, titting water outlet is connected with device water tank outward, regulates the lower end head with overflow mechanism, and head is regulated with a water pipe that links to each other with inlet opening joint on the cover plate in the upper end.Oppositely intake from the lower end osculum, the air in the discharger is seen the water surface in the water pipe of top, stop into water.After leaving standstill a period of time, intake from water inlet pipe, open simultaneously four osculums rallentando, in the whole process, prevent the gas access to plant, measure the corresponding flow Q of water constantly with LZB rotor flow measurement, measure the corresponding pressure differential constantly in sample two ends, can obtain corresponding hydraulic gradient and percolation flow velocity constantly.
In the single-phase liquid unsaturated seepage experimentation,,, form and suck process and discharge process, treat to measure pore water pressure p behind the seepage stability with LZB rotor flowmeter Control Flow from the water inlet of upper end water inlet joint
1, p
2, water saturation degree in the weight of discharge, corresponding certain water cut and the medium.Link to each other with the outer gas heat sink of device by the enterprising air vent connector of cover plate, guaranteed that gas flow is an isothermal flow in the single phase gas seepage flow experimentation.
Multifunction seepage experimental apparatus for loose crushing medium provided by the invention has following characteristics:
1, powerful, the research contents of covering is many, can carry out the experimental study of single-phase liquid saturated flow, single-phase liquid unsaturated seepage, can also carry out single phase gas seepage flow experimental study and gas-liquid two-phase fluid seepage flow experimental study.
2, device and pipeline all adopt closed, have prevented that gas leakage and liquid from flowing out, and have guaranteed good experimental situation condition, and be simple to operate, good stability, and effective simulated field actual conditions, measurement data is true and reliable.
3, the device inwall has reduced wall effect to a great extent through special processing.
4, the LZB rotor flowmeter of device outfit can simple and directly promptly be measured corresponding fluid flow constantly, has replaced the manual measurement mode of fluid flow.
5, install Chinese Academy of Sciences's geographical science of outfit and the DLS-II type tensiometer that The Study on Resources is produced, can effectively measure the pore water pressure in the loose crushing medium, solved in liquid seepage flow experimentation the difficult problem that matric suction is difficult to measure.
6, the KONICS serial gas tensimeter of Korea S's production of device outfit, highly sensitive, in conjunction with homemade probe, effectively measurement gas pressure has solved in gas seepage flow experimentation the difficult problem that the gauge measurement pipe easily stops up, sensitivity is low.
7, the outer gas heat sink of the air inlet connections device on the device links to each other, and has guaranteed that gas flow is an isothermal flow in the single phase gas seepage flow experimentation.
Multifunction seepage experimental apparatus for loose crushing medium can be finished single phase gas, the experiment of liquid seepage flow, can finish the experiment of gas-liquid two-phase fluid seepage flow again, and is simple to operate, long service life, and applicability is strong, and measurement data is authentic and valid, has reached the design object of estimating.
Below in conjunction with the drawings and specific embodiments detailed structure of the present invention is further described.
Description of drawings
Accompanying drawing 1 is a structural representation of the present invention;
Accompanying drawing 2 is the vertical view of accompanying drawing 1;
Accompanying drawing 3 is the structural representation of back-shaped shower;
Accompanying drawing 4 is the left view of accompanying drawing 3.
Embodiment
As shown in drawings: a kind of loose crushing medium multifunction seepage test unit, it comprises a cylindrical shell 11 of being made up of upper shell 111 and lower shell 112, link together by flange 12,15, coupling bolt 13 between upper shell 111 and the lower shell 112, cylindrical shell 11 length are 3: 1 with the ratio of cylindrical shell 11 internal diameter radiuses, also are provided with packing washer 14 between upper shell 111 and lower shell 112.On the barrel of cylindrical shell 11, what being used for of being equipped with from top to bottom that the mounting holes that have atresia rubber plug 29 and porose rubber plug 16 28, one rows that two rows erect erect installed that tensiometer 9, one rows erect is the air pressure gaging hole, is used for installing rain glass 10.The top of cylindrical shell 11 is provided with a cover plate 6 that has back-shaped shower 61, back-shaped shower 61 is installed in the cylindrical shell 11 of cover plate 6 lower surfaces, back-shaped shower is provided with spray apertures 611, cover plate 6 links together by coupling bolt 1 and the flange 8 that is located at cylindrical shell 11 tops, be provided with packing washer 7 between cover plate 6 and the flange 8, on cover plate 6, also be respectively equipped with temperature-measuring port joint 2, shower water inlet joint 3, water inlet joint 4 and air inlet connections 5.Wherein, shower water inlet joint 3 joins with the back-shaped shower 61 that is installed in the cover plate 6 lower surface cylindrical shells 11, and temperature-measuring port joint 2, water inlet joint 4 and air inlet connections 5 communicate with cylindrical shell 11 inner chambers.Lower end at cylindrical shell 11 is connected with a cylindrical shell base 23 by coupling bolt 18 and flange 17,20, is provided with packing washer 19 between the lower end of cylindrical shell 11 and the cylindrical shell base 23.The upper end of cylindrical shell base 23 is provided with the dividing plate 22 in piece of cloth set solid water hole, and the aperture of osculum is that 1cm, spacing are 8mm on the dividing plate 22.Be provided with a screen pack 21 on dividing plate 22, screen pack 21 is 200 purpose metal screens.In cylindrical shell 11, be furnished with the thick smooth cobble 27 of one deck 10mm above the screen pack 21, the diameter of cobble 27 is 5mm.Be equipped with four gas outlet joints 26 on the barrel top of cylindrical shell base 23, be equipped with four water delivering orifice joints 24 in the barrel bottom of cylindrical shell base 23.Inwall at cylindrical shell 11 is provided with the thick sand-cement slurry of one deck 5mm 25, scribbles one deck epoxy resin on the sand-cement slurry 25.
Claims (3)
1, a kind of loose crushing medium multifunction seepage test unit, it is characterized in that: it comprises a cylindrical shell of being made up of upper shell and lower shell, link together by flange, coupling bolt between upper shell and the lower shell, between upper shell and lower shell, also be provided with packing washer, on the barrel of cylindrical shell, be equipped with the mounting hole that has atresia rubber plug and porose rubber plug that two rows erect from top to bottom, one row erects is used for installing tensiometer, what one row erect is the air pressure gaging hole, is used for installing rain glass; The top of cylindrical shell is provided with a cover plate that has back-shaped shower, back-shaped shower is installed in the cylindrical shell of cover plate lower surface, back-shaped shower is provided with spray apertures, cover plate links together by coupling bolt and the flange that is located at cylinder top, be provided with packing washer between cover plate and the flange, on the cover board also be respectively equipped with the temperature-measuring port joint, shower water inlet joint, water inlet joint and air inlet connections, shower water inlet joint joins the temperature-measuring port joint with the back-shaped shower that is installed in the cover plate lower surface cylindrical shell, water inlet joint and air inlet connections communicate with cylinder lumen; Lower end at cylindrical shell is connected with a cylindrical shell base by coupling bolt and flange, be provided with packing washer between the lower end of cylindrical shell and the cylindrical shell base, the upper end of cylindrical shell base is provided with the dividing plate in piece of cloth set solid water hole, the aperture of osculum is 1cm on the dividing plate, spacing is 8mm, on dividing plate, be provided with a screen pack, screen pack is 200 purpose metal screens, in cylindrical shell, be furnished with the thick smooth cobble of one deck 8-15mm above the screen pack, the diameter of cobble is 3-6mm, be equipped with four gas outlet joints on the barrel top of cylindrical shell base, be equipped with four water delivering orifice joints in the barrel bottom of cylindrical shell base.
2, a kind of loose crushing medium multifunction seepage test unit according to claim 1, it is characterized in that: the inwall at cylindrical shell is provided with the thick sand-cement slurry of one deck 5mm, scribbles one deck epoxy resin on the sand-cement slurry.
3, a kind of loose crushing medium multifunction seepage test unit according to claim 1 and 2 is characterized in that: the ratio of cylindrical shell length and cylinder internal diameter radius was greater than 3: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200810143109 CN101358917B (en) | 2008-08-27 | 2008-08-27 | Multifunction seepage experimental apparatus for loose crushing medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200810143109 CN101358917B (en) | 2008-08-27 | 2008-08-27 | Multifunction seepage experimental apparatus for loose crushing medium |
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| CN101358917A true CN101358917A (en) | 2009-02-04 |
| CN101358917B CN101358917B (en) | 2010-12-29 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866093A (en) * | 2012-09-04 | 2013-01-09 | 中国农业大学 | Porous medium biological clogging simulation test device and simulation test evaluation method |
| CN102928328A (en) * | 2012-11-15 | 2013-02-13 | 南华大学 | Rock core holder for measuring transverse permeability of sandstone-type uranium deposit rock core |
| CN102980842A (en) * | 2012-12-11 | 2013-03-20 | 重庆交通大学 | System and method for testing anisotropy permeability coefficient of layered coarse-grained soil body |
| CN103076200A (en) * | 2013-01-06 | 2013-05-01 | 南华大学 | Layered sampling testing device for capillary water zone |
| CN104916210A (en) * | 2015-05-25 | 2015-09-16 | 中广核核电运营有限公司 | Bolt fastening demonstration apparatus and bolt fastening parameter display method |
| CN105158134A (en) * | 2015-06-17 | 2015-12-16 | 南华大学 | Multifunctional testing apparatus for steeply-inclined loose fragmented medium |
| CN106442258A (en) * | 2016-09-21 | 2017-02-22 | 中国水利水电科学研究院 | Detachable lining seepage testing device and testing method thereof |
| CN109323962A (en) * | 2018-11-16 | 2019-02-12 | 核工业北京化工冶金研究院 | A kind of multi-functional radon diffusion seepage flow test device of smashed radioactive material |
| CN112595648A (en) * | 2020-12-14 | 2021-04-02 | 广东省水利水电科学研究院 | Device and method for detecting seepage failure ratio degradation quality of core sample of plastic concrete wall |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2532480Y (en) * | 2002-03-22 | 2003-01-22 | 中国矿业大学 | Auxiliary device for cracked rock and non-consolidation porous material permeability test |
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2008
- 2008-08-27 CN CN 200810143109 patent/CN101358917B/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866093A (en) * | 2012-09-04 | 2013-01-09 | 中国农业大学 | Porous medium biological clogging simulation test device and simulation test evaluation method |
| CN102866093B (en) * | 2012-09-04 | 2014-12-10 | 中国农业大学 | Porous medium biological clogging simulation test device and simulation test evaluation method |
| CN102928328A (en) * | 2012-11-15 | 2013-02-13 | 南华大学 | Rock core holder for measuring transverse permeability of sandstone-type uranium deposit rock core |
| CN102980842A (en) * | 2012-12-11 | 2013-03-20 | 重庆交通大学 | System and method for testing anisotropy permeability coefficient of layered coarse-grained soil body |
| CN102980842B (en) * | 2012-12-11 | 2015-01-07 | 重庆交通大学 | System and method for testing anisotropy permeability coefficient of layered coarse-grained soil body |
| CN103076200A (en) * | 2013-01-06 | 2013-05-01 | 南华大学 | Layered sampling testing device for capillary water zone |
| CN104916210A (en) * | 2015-05-25 | 2015-09-16 | 中广核核电运营有限公司 | Bolt fastening demonstration apparatus and bolt fastening parameter display method |
| CN105158134A (en) * | 2015-06-17 | 2015-12-16 | 南华大学 | Multifunctional testing apparatus for steeply-inclined loose fragmented medium |
| CN106442258A (en) * | 2016-09-21 | 2017-02-22 | 中国水利水电科学研究院 | Detachable lining seepage testing device and testing method thereof |
| CN106442258B (en) * | 2016-09-21 | 2017-11-03 | 中国水利水电科学研究院 | A kind of detachable lining cutting seepage flow test device and its test method |
| CN109323962A (en) * | 2018-11-16 | 2019-02-12 | 核工业北京化工冶金研究院 | A kind of multi-functional radon diffusion seepage flow test device of smashed radioactive material |
| CN112595648A (en) * | 2020-12-14 | 2021-04-02 | 广东省水利水电科学研究院 | Device and method for detecting seepage failure ratio degradation quality of core sample of plastic concrete wall |
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| CN101358917B (en) | 2010-12-29 |
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