CN106124385A - From gravity pressurization original state clay ultrafiltration assay device - Google Patents
From gravity pressurization original state clay ultrafiltration assay device Download PDFInfo
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- CN106124385A CN106124385A CN201610648619.2A CN201610648619A CN106124385A CN 106124385 A CN106124385 A CN 106124385A CN 201610648619 A CN201610648619 A CN 201610648619A CN 106124385 A CN106124385 A CN 106124385A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
Abstract
The present invention is open a kind of from gravity pressurization original state clay ultrafiltration assay device, and including ultrafiltration tester with from gravity pressue device, the top of described ultrafiltration tester is provided with feed pathway, sidewall is provided with confined pressure hole；Described include base from gravity pressue device, top board and bearing plate, support column it is provided with between base and top board, described bearing plate is sheathed on the support columns, and can move up and down along support column, bearing plate is placed with and joins pressing plate, base is provided with hydraulic cavities, it is internally provided with pilot post in hydraulic cavities, the top of pilot post is connected with bearing plate, the side of hydraulic cavities is connected with reserving liquid tank by hydraulic connecting pipe, the opposite side of hydraulic cavities is connected with feed pathway or confined pressure hole by voltage stabilizing outlet tube, hydraulic connecting pipe and voltage stabilizing outlet tube are provided with check valve.Present invention employing carries out mechanical type from gravity pressue device to ultrafiltration tester and adds axial compression and confined pressure, and Stress control is stable, accurate, reduces the test error of process of the test.
Description
Technical field
The present invention relates to a kind of for original state clay is permeated with filter salt ability carry out laboratory test ultrafiltration test
Device, concretely relates to a kind of from gravity pressurization original state clay ultrafiltration assay device.
Background technology
The material that mainly comprises of aquiclude is cohesive soil, and soil CLAY MINERALS AND THEIR SIGNIFICANCE with montmorillonite, illite, kaolinite is
Main.In order to verify the filter salt effect of aquiclude, need to carry out high pressure infiltration experiment.Existing penetration testing equipment is mainly darcy
Tester, but darcy tester is only applicable to low pressure or minute-pressure.Common high pressure permeability equipment such as three the most popular axial compressions
Although power meter can survey high pressure, but is only applicable to the solid rock of consolidation, it is not particularly suited for viscosity soil sample.
Filed in 8 days Mays in 2015 of applicant, the Chinese invention patent of Application No. 201510229210.2 discloses
A kind of false three axle high pressure infiltration experiment instrument, its sealing using the method adding confined pressure extruding flexible wall to solve soil sample perisporium is asked
Topic, can be used for infiltration and the filter salt aptitude tests of cohesive undisturbed soil sample.But applicant finds during follow-up test, adding axle
During pressure and confined pressure, can there is the problem of pressure transient in the force (forcing) pump that compatibility test instrument uses, cause there is bigger test
Error.
Summary of the invention
Based on above-mentioned technical problem, the present invention provides a kind of from gravity pressurization original state clay ultrafiltration assay device.
The adopted technical solution is that:
A kind of from gravity pressurization original state clay ultrafiltration assay device, including ultrafiltration tester with from gravity pressue device, institute
State ultrafiltration tester include outer top cover, outer base and connect outer top cover and the sidewall of outer base, outer top cover, outer base and side
Wall surrounds closed cavity, be provided with in closed cavity internal head cover, interior base, for being coated with the flexible silicon gum cover of undisturbed soil sample
Pipe and perforated casing, described internal head cover is arranged on below outer top cover, is provided with the feed liquor connected and leads in internal head cover and outer top cover
Road, feed pathway external axial compression Pressure gauge, described interior base is arranged on above outer base, is provided with exhalant canal, outward in interior base
The water storage cavity connected with exhalant canal and the bottom sample tap being in communication with the outside by water storage cavity it is provided with in base, internal head cover, interior
Base becomes undisturbed soil sample permeation chamber with flexible silicon gum cover circumference of cannon bone, and perforated casing is enclosed within the outside of flexible silicon gum cover pipe, is having borehole jack
Forming confined pressure chamber between pipe and flexible silicon gum cover pipe, offer the confined pressure hole in connection confined pressure chamber on sidewall, confined pressure hole is external encloses
Pressure pressure table；Described include base, top board and bearing plate from gravity pressue device, between base and top board, be provided with support
Post, described bearing plate is sheathed on the support columns, and can move up and down along support column, is placed with and joins pressing plate, the end of on bearing plate
Being provided with hydraulic cavities on Zuo, be internally provided with pilot post in hydraulic cavities, the top of pilot post is connected with bearing plate, hydraulic cavities
Side is connected with reserving liquid tank by hydraulic connecting pipe, and the opposite side of hydraulic cavities is by voltage stabilizing outlet tube and feed pathway or confined pressure hole
Connection, is provided with check valve on hydraulic connecting pipe and voltage stabilizing outlet tube.
Preferably, described base and top board are all square, and described support column arranges four altogether, lay respectively at base and top board
Corner at, described pilot post is connected with the center of bearing plate.
Preferably, described reserving liquid tank is provided with the pumped well structure extruded by the liquid hand stored in reserving liquid tank, institute
Stating pumped well structure and include well body and pressure handle, well body is hollow cylindrical structure, and feed tube and reserving liquid tank are passed through in the bottom of well body
Bottom connection, the top of well body is provided with liquid outlet, liquid outlet by hydraulic connecting pipe connect hydraulic cavities, in well body
Portion is provided with piston, and described piston is connected with driving its reciprocating pressure handle, is provided above note in one end of reserving liquid tank
Liquid mouth.
Preferably, described reserving liquid tank arranges two altogether, respectively axial compression reserving liquid tank and confined pressure reserving liquid tank, and axial compression reserving liquid tank leads to
Crossing the first hydraulic connecting pipe and the hydraulic chamber into communication from gravity pressue device, hydraulic cavities is by voltage stabilizing outlet tube with feed pathway even
Logical, confined pressure reserving liquid tank is connected with confined pressure hole by the second hydraulic connecting pipe.
Preferably, described ultrafiltration tester arranges multiple, equal at the feed pathway and confined pressure hole of each ultrafiltration tester
Proportioning one threeway, the threeway at the feed pathway of all ultrafiltration testers is interconnected, at the confined pressure hole of all ultrafiltration testers
Threeway connect the most mutually.
Preferably, the bottom of described internal head cover is provided with downwardly projecting peripheral flange, the top of described interior base be provided with to
The peripheral flange protruded above, described flexible silicon gum cover pipe uses sealing steel card to add with the outside of internal head cover and interior base peripheral flange
Gu seal.
Preferably, the corresponding position at sidewall, perforated casing and flexible silicon gum cover pipe is provided with lateral sample tap, in side
Screwed pipe is installed at sample tap, sidewall and flexible silicon gum cover pipe are provided with the hickey suitable with screwed pipe, soft
Property silica gel sleeve pipe on the position of corresponding lateral sample tap be provided with flexible filter screen.
Preferably, described lateral sample tap arranges 2～5, and along sidewall in being intervally arranged up and down.
Preferably, the bottom surface of described internal head cover is provided with the first groove, places the first water filter plate in the first groove, described interior
The end face of base is provided with the second groove, place in the second groove the second water filter plate, described intake tunnel and the first water filter plate it
Between be provided with top inner chamber, be provided with end inner chamber between exhalant canal and the second water filter plate.
Preferably, it is provided with steel gauze between described water filter plate and the upper and lower contact surface of undisturbed soil sample.
Preferably, described interior base and internal head cover are contacted with sidewall by the first O-ring seal respectively, described internal head cover
Upper surface is contacted with outer top cover by the second O-ring seal, and the 3rd O-ring seal and outer base is passed through in described interior base lower surface
Contacting, described outer top cover and outer base are screwed respectively in sidewall upper and lower end face.
The method have the benefit that:
1, the present invention uses the mode that manual pressure device matches with from gravity pressue device, carries out ultrafiltration tester
Mechanical type adds axial compression and confined pressure, and compared to pulsed force (forcing) pump or peristaltic pump, Stress control is more stable, accurate, greatly drops
The low test error of process of the test.
2, owing to have employed the Purely mechanical pressuring method from gravity pressue device and manual pressure device, original state of the present invention
Clay ultrafiltration assay device can be equipped with multiple ultrafiltration tester simultaneously, carries out organizing test operation more, and test efficiency is higher, and respectively
Ultrafiltration tester is respectively provided with a threeway at feed pathway and confined pressure hole, can easily realize connecting, simple in construction, and manipulation is held
Easily.
3, the present invention sets up multiple lateral sample tap on ultrafiltration tester, can be as required to different through undisturbed soil sample
The transudate of position is sampled, thus realizes the analysis to transudate variation of water in clay.
4, the present invention is by installing screwed pipe at lateral sample tap, and arranges and screwed pipe on sidewall and flexible silicon gum cover pipe
The mode of suitable hickey, can easily realize laterally sampling, and have preferable sealing effectiveness, additionally in flexible silicon
On gum cover pipe, the position of corresponding lateral sample tap is provided with flexible filter screen, and undisturbed soil sample can play filtration iris action.
Accompanying drawing explanation
The invention will be further described with detailed description of the invention below in conjunction with the accompanying drawings:
Fig. 1 is the structural principle schematic diagram of one embodiment of the present invention；
Fig. 2 is the structure diagram from gravity pressue device；
Fig. 3 is the structure diagram of manual pressure device；
Fig. 4 is the structural principle schematic diagram of ultrafiltration tester；
Fig. 5 is the partial enlarged drawing of Fig. 4, mainly illustrates the structure at lateral sample tap.
In figure: 1-ultrafiltration tester, the outer top cover of 101-, 102-outer base, 103-sidewall, 104-internal head cover, 105-inner bottom
Seat, 106-flexible silicon gum cover pipe, 107-perforated casing, 108-feed pathway, 109-axial compression Pressure gauge, 1010-exhalant canal,
1011-water storage cavity, sample tap bottom 1012-, 1013-undisturbed soil sample permeation chamber, 1014-confined pressure chamber, 1015-confined pressure hole, 1016-
Confined pressure Pressure gauge, the lateral sample tap of 1017-, 1018-screwed pipe, 1019-hickey, 1020-flexible filter screen, 1021-sealing steel
Card, 1022-the first water filter plate, 1023-the second water filter plate, 1024-pushes up inner chamber, inner chamber at the bottom of 1025-, 1026-steel gauze, 1027-
Screw, 1028-connecting tube, 2-manual pressure device, 201-reserving liquid tank, 202-pumped well structure, 203-liquid injection port, 2021-well
Body, 2022-presses handle, 2023-feed tube, 2024-liquid outlet, 2025-piston, 2026-film, and 211-axial compression manual pressure fills
Putting, 212-confined pressure manual pressure device, 3-is from gravity pressue device, 301-base, 302-top board, 303-bearing plate, and 304-props up
Dagger, 305-joins pressing plate, 306-hydraulic cavities, 307-pilot post, 4-the first hydraulic connecting pipe, 5-voltage stabilizing outlet tube, 6-threeway, 7-
Second hydraulic connecting pipe, 8-check valve, 9-the first water check valve, 10-the second water check valve.
Detailed description of the invention
As it is shown in figure 1, a kind of original state clay ultrafiltration assay device, including ultrafiltration tester 1 with from gravity pressue device 3.
As shown in Figure 4, described ultrafiltration tester 1 includes outer top cover 101, outer base 102 and connects outer top cover 101 and outer base 102
Sidewall 103, outer top cover 101, outer base 102 and sidewall 103 surround closed cavity, are provided with internal head cover in closed cavity
104, interior base 105, for being coated with flexible silicon gum cover pipe 106 and the perforated casing 107 of undisturbed soil sample.Internal head cover 104 is installed
Outside below top cover 101, being provided with the feed pathway 108 connected in internal head cover 104 and outer top cover 101, feed pathway 108 is external
Axial compression Pressure gauge 109.Described interior base 105 is arranged on above outer base 102, is provided with exhalant canal 1010, outward in interior base 105
The water storage cavity 1011 connected with exhalant canal and the bottom sample tap being in communication with the outside by water storage cavity it is provided with in base 102
1012.Internal head cover 104, interior base 105 surround undisturbed soil sample permeation chamber 1013 with flexible silicon gum cover pipe 106, and perforated casing 107 overlaps
In the outside of flexible silicon gum cover pipe 106, between perforated casing 107 and flexible silicon gum cover pipe 106, form confined pressure chamber 1014, having
Also forming a chamber between hole sleeve 107 and sidewall 103, offer confined pressure hole 1015 on sidewall, confined pressure hole 1015 is with above-mentioned
Chamber, and then connection confined pressure chamber 1014, confined pressure hole external confined pressure Pressure gauge 1016, be provided with the second sealing at confined pressure hole
Valve 10.Base 301, top board 302 and bearing plate 303 is included from gravity pressue device 3, base 301 He as in figure 2 it is shown, described
Being provided with support column 304 between top board 302, described bearing plate 303 is set on support column 304, and can transport up and down along support column
Dynamic.Bearing plate 303 is placed with and joins pressing plate 305, base 301 is provided with hydraulic cavities 306, in the inside of hydraulic cavities 306
Being provided with pilot post 307, the top of pilot post 307 is connected with movable bearing plate 303.The side of hydraulic cavities 306 and reserving liquid tank
201 connections, the opposite side of hydraulic cavities connects with feed pathway or confined pressure hole.Reserving liquid tank 201 is provided with reserving liquid tank internal memory
The pumped well structure 202 that the liquid hand of storage extrudes, is provided above liquid injection port 203 in one end of reserving liquid tank.Reserving liquid tank 201 He
Pumped well structure 202 forms manual pressure device 2.As it is shown on figure 3, described pumped well structure 202 includes well body 2021 and pressure hands
Handle 2022, well body 2021 is in hollow cylindrical structure, and the bottom of well body 2021 is connected by the bottom of feed tube 2023 with reserving liquid tank 201
Logical, the top of well body 2021 is provided with liquid outlet 2024, is internally provided with piston 2025, at piston 2025 at well body 2021
Lower section be fixed with film 2026, described piston 2025 is connected with driving its reciprocating pressure handle 2022.This structure and work
Make principle consistent with the structure and working principle of common pumped well.Described reserving liquid tank arranges two altogether, respectively axial compression reserving liquid tank
With confined pressure reserving liquid tank, accordingly, as it is shown in figure 1, described manual pressure device arranges two altogether, respectively axial compression manual pressure fills
Put 211 and confined pressure manual pressure device 212, described arrange one from gravity pressue device.Described axial compression manual pressure device 211
Liquid outlet connected with the hydraulic cavities 306 from gravity pressue device 3 by the first hydraulic connecting pipe 4, described hydraulic cavities 306 is passed through
Voltage stabilizing outlet tube 5 connects with the inlet of threeway 6, and a wherein liquid outlet of threeway 6 connects with feed pathway 108, and another goes out liquid
Mouth is closed by the first water check valve 9.The liquid outlet of described confined pressure manual pressure device is by the second hydraulic connecting pipe 7 and confined pressure hole
1015 connections.First hydraulic connecting pipe 4, voltage stabilizing outlet tube 5 and the second hydraulic connecting pipe 7 are provided with check valve 8, make liquid
Body can only one-way transmission, it is impossible to reverse reflux.
As the further design to the present invention, as shown in Figure 4, Figure 5, at sidewall, perforated casing and flexible silicon gum cover pipe
Corresponding position be provided with lateral sample tap 1017, at lateral sample tap 1017, screwed pipe 1018 is installed, sidewall 103 He
The hickey 1019 suitable with screwed pipe it is provided with on flexible silicon gum cover pipe 106, corresponding lateral on flexible silicon gum cover pipe 106
The position of sample tap is provided with flexible filter screen 1020.
Above-mentioned lateral sample tap 1017 is preferably provided with 2～5, and along sidewall in being intervally arranged up and down.
Further, described base 301 and top board 302 are all square, and described support column 304 arranges four altogether, respectively
Being positioned at the corner of base 301 and top board 302, described pilot post 306 is connected with the center of bearing plate 303.The design of this structure can
The operation making bearing plate is more steady, and then the accurate control of beneficially axial compression.
Further, described ultrafiltration tester arranges multiple, at the feed pathway and confined pressure hole of each ultrafiltration tester
Being all connected with a threeway, the threeway at the feed pathway of all ultrafiltration testers is interconnected by pipeline, all ultrafiltration testers
Confined pressure hole at threeway be the most all interconnected by pipeline.Certainly, confined pressure pressure also can be by from gravity pressue device and confined pressure
Manual pressure device provides jointly, and the water that i.e. confined pressure manual pressure device extrudes is introduced into another hydraulic pressure from gravity pressue device
Chamber, then enters confined pressure hole under the effect of bearing plate and pilot post.
Further, as shown in Figure 4, the bottom of described internal head cover is provided with downwardly projecting peripheral flange, described inner bottom
The top of seat is provided with peripheral flange protruding upward, described flexible silicon gum cover pipe and internal head cover and the outside of interior base peripheral flange
Use sealing steel card 1021 to reinforce to seal.The bottom surface of described internal head cover is provided with the first groove, places the first filter in the first groove
Water plate 1022, the end face of described interior base is provided with the second groove, places the second water filter plate 1023, described water inlet in the second groove
It is provided with top inner chamber 1024 between passage and the first water filter plate, between exhalant canal and the second water filter plate, is provided with end inner chamber 1025.Institute
State on the first water filter plate and undisturbed soil sample between contact surface and be equipped with steel between contact surface under the second water filter plate and undisturbed soil sample
Gauze 1026.Described interior base and internal head cover are contacted with sidewall by the first O-ring seal respectively, described internal head cover upper surface
Being contacted with outer top cover by the second O-ring seal, described interior base lower surface is connected with outer base by the 3rd O-ring seal
Touching, described outer top cover and outer base are fixed on sidewall upper and lower end face by screw 1027 respectively.
Original state clay ultrafiltration assay device of the present invention, applicable original state clay can be non-consolidation plasticity cohesive undisturbed soil
Sample.Below as a example by viscosity soil sample, in conjunction with present configuration its concrete workflow is described:
1, sample preparation: viscosity soil sample is processed into the cylindrical sample of accurate dimension；
2, setting-out seals:
1) flexible silicon gum cover pipe 106 snapped in place the interior base 105 of the second water filter plate 1023 and steel gauze 1026,
Sealing steel card 1021 is used to fix on the downside of flexible silicon gum cover pipe 106；
2) cylindrical sample is put in flexible silicon gum cover pipe 106；
3) perforated casing 107 is enclosed within outside flexible silicon gum cover pipe 106, is placed on interior base 105；
4) the sealing steel card 1021 do not tightened is enclosed within the upside of flexible silicon gum cover pipe 106；
5) the steel gauze 1026 above sample and the first water filter plate 1022 being placed, internal head cover 104 snaps in flexible silica gel
Sleeve pipe 106, tightens upside sealing steel card 1021；
6) putting in outer base 102 by above entirety, sidewall 103 is put, adjustment sidewall 103, perforated casing 107 make
Lateral sample tap 1017 aligns；
7) screwed pipe 1018 is loaded so that it is tighten with the hickey 1019 on flexible silicon gum cover pipe 106 and sidewall 103；
8) tap water is filled it up with in confined pressure chamber 1014, build outer top cover 101, and fix with sidewall 103；
9) feed pathway 108 is connected with the voltage stabilizing outlet tube 5 from gravity pressue device by connecting tube 1028；
10) by the first hydraulic connecting pipe 4 of axial compression manual pressure device with the hydraulic cavities 306 from gravity pressue device even
Logical, the second hydraulic connecting pipe 7 of confined pressure manual pressure device and the confined pressure hole 1015 of ultrafiltration tester are connected；
11) testing liquid configured is injected the reserving liquid tank of axial compression manual pressure device, takes from water and inject confined pressure hands
The reserving liquid tank of dynamic pressue device, tests ready.
3, test:
1) the second water check valve 10 at ultrafiltration tester feed pathway 108 and confined pressure hole is closed, to axial compression manual pressure device
Suitable pressure is applied respectively with confined pressure manual pressure device；
2) first slowly open the second water check valve 10 at confined pressure hole 1015, note observing confined pressure Pressure gauge 1016 at confined pressure hole
Situation of change, slowly opens feed pathway 108 simultaneously, and observes the situation of change of axial compression Pressure gauge 109 at feed pathway, adjusts
Axial compression and confined pressure size, it is ensured that at feed pathway, axial compression Pressure gauge 109 reading is not more than confined pressure Pressure gauge 1016 at confined pressure hole
Reading.When the manometric reading of axial compression Pressure gauge and confined pressure is basicly stable, read pressure value, and record the time；
3) connect each lateral sample tap 1017 and bottom sample tap 1012 by rubber hose, and introduce in wide-mouth liquid containing bottle
Collect transudate, sample when infusion bottle transudate reaches 20ml, and numbered Yi-j(wherein, i=1,2,3,4, represent respectively
Top-down three lateral sample taps 1017 and bottom sample tap 1012；J=1,2,3, represent and sampled
The order of product).
4) testing liquid and taken transudate water sample to configuration carry out hydrochemical analyse, draw transudate change of water quality bent
Line.
The relevant technology contents do not addressed in aforesaid way is taked or uses for reference prior art to realize.
It should be noted that any equivalent replacement side under the teaching of this specification, done by those skilled in the art
Formula, or substantially variant, all should be within protection scope of the present invention.
Claims (6)
1. one kind from gravity pressurize original state clay ultrafiltration assay device, it is characterised in that: include ultrafiltration tester and add from gravity
Pressure device, described ultrafiltration tester includes outer top cover, outer base and connects outer top cover and the sidewall of outer base, outer top cover, outward
Base and sidewall surround closed cavity, be provided with in closed cavity internal head cover, interior base, for being coated with the flexibility of undisturbed soil sample
Silica gel sleeve pipe and perforated casing, described internal head cover is arranged on below outer top cover, is provided with and connects in internal head cover and outer top cover
Feed pathway, feed pathway external axial compression Pressure gauge, described interior base is arranged on above outer base, is provided with water outlet and leads in interior base
Road, is provided with the water storage cavity connected with exhalant canal and the bottom sample tap being in communication with the outside by water storage cavity, interior top in outer base
Lid, interior base become undisturbed soil sample permeation chamber with flexible silicon gum cover circumference of cannon bone, and perforated casing is enclosed within the outside of flexible silicon gum cover pipe, is having
Form confined pressure chamber between hole sleeve and flexible silicon gum cover pipe, sidewall offers the confined pressure hole in connection confined pressure chamber, outside confined pressure hole
Connect confined pressure Pressure gauge；Described include base, top board and bearing plate from gravity pressue device, be provided with between base and top board
Dagger, described bearing plate is sheathed on the support columns, and can move up and down along support column, is placed with and joins pressing plate on bearing plate,
Being provided with hydraulic cavities on base, be internally provided with pilot post in hydraulic cavities, the top of pilot post is connected with bearing plate, hydraulic cavities
Side connect with reserving liquid tank by hydraulic connecting pipe, the opposite side of hydraulic cavities passes through voltage stabilizing outlet tube and feed pathway or confined pressure
Hole connects, and is provided with check valve on hydraulic connecting pipe and voltage stabilizing outlet tube.
One the most according to claim 1 is from gravity pressurization original state clay ultrafiltration assay device, it is characterised in that: the described end
Seat and top board be all square, described support column arranges four altogether, lays respectively at the corner of base and top board, described pilot post with
The center of bearing plate connects.
One the most according to claim 1 is from gravity pressurization original state clay ultrafiltration assay device, it is characterised in that: described storage
Be provided with the pumped well structure liquid hand that stores in reserving liquid tank extruded on liquid case, described pumped well structure include well body and
Pressure handle, well body is hollow cylindrical structure, and the bottom of well body is connected with the bottom of reserving liquid tank, on the top of well body by feed tube
Being provided with liquid outlet, liquid outlet connects hydraulic cavities by hydraulic connecting pipe, at the piston that is internally provided with of well body, described piston with
Drive its reciprocating pressure handle to connect, be provided above liquid injection port in one end of reserving liquid tank.
One the most according to claim 1 is from gravity pressurization original state clay ultrafiltration assay device, it is characterised in that: described storage
Liquid case arranges two altogether, respectively axial compression reserving liquid tank and confined pressure reserving liquid tank, and axial compression reserving liquid tank passes through the first hydraulic connecting pipe and oneself
The hydraulic chamber into communication of gravity pressue device, hydraulic cavities is connected with feed pathway by voltage stabilizing outlet tube, and confined pressure reserving liquid tank passes through the
Two hydraulic connecting pipes connect with confined pressure hole.
One the most according to claim 1 is from gravity pressurization original state clay ultrafiltration assay device, it is characterised in that: described super
Filter tester arranges multiple, equal proportioning one threeway at the feed pathway and confined pressure hole of each ultrafiltration tester, and all ultrafiltration try
Testing the threeway at the feed pathway of instrument to be interconnected, the threeway at the confined pressure hole of all ultrafiltration testers connects the most mutually.
One the most according to claim 1 is from gravity pressurization original state clay ultrafiltration assay device, it is characterised in that: in described
The bottom of top cover is provided with downwardly projecting peripheral flange, and the top of described interior base is provided with peripheral flange protruding upward, described
Flexible silicon gum cover pipe uses sealing steel card to reinforce sealing with the outside of internal head cover and interior base peripheral flange.
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| CN201610648619.2A CN106124385B (en) | 2016-08-10 | 2016-08-10 | Self-gravity pressurization undisturbed clay ultrafiltration test device |
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|---|---|---|---|
| CN201610648619.2A CN106124385B (en) | 2016-08-10 | 2016-08-10 | Self-gravity pressurization undisturbed clay ultrafiltration test device |
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| CN106124385B CN106124385B (en) | 2020-04-10 |
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| CN204307530U (en) * | 2014-12-10 | 2015-05-06 | 中国热带农业科学院热带作物品种资源研究所 | A kind of rotating down pressing device for filtering |
| CN204789256U (en) * | 2015-05-08 | 2015-11-18 | 山东科技大学 | False triaxial high pressure permeability test appearance |
| CN205879750U (en) * | 2016-08-10 | 2017-01-11 | 山东科技大学 | From dead -weight loading original state clay ultrafiltration test device |
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