CN111997943B - Liquid uniform-speed pressurizing device for testing permeability of geomembrane - Google Patents
Liquid uniform-speed pressurizing device for testing permeability of geomembrane Download PDFInfo
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- CN111997943B CN111997943B CN202010878622.XA CN202010878622A CN111997943B CN 111997943 B CN111997943 B CN 111997943B CN 202010878622 A CN202010878622 A CN 202010878622A CN 111997943 B CN111997943 B CN 111997943B
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- 239000007788 liquid Substances 0.000 title claims abstract description 46
- 230000035699 permeability Effects 0.000 title claims abstract description 27
- 238000012360 testing method Methods 0.000 title claims abstract description 26
- 238000001514 detection method Methods 0.000 claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 238000003825 pressing Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 11
- 238000007906 compression Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 4
- 239000002985 plastic film Substances 0.000 description 3
- 229920006255 plastic film Polymers 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- -1 Polyethylene Polymers 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000002315 pressor effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/06—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam
- F15B11/072—Combined pneumatic-hydraulic systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
- F15B11/032—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of fluid-pressure converters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20576—Systems with pumps with multiple pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
- F15B2211/7142—Multiple output members, e.g. multiple hydraulic motors or cylinders the output members being arranged in multiple groups
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Dispersion Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Examining Or Testing Airtightness (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention belongs to the technical field of geomembrane permeability detection, and particularly relates to a liquid constant-speed pressurizing device for geomembrane permeability test, which is used for pressurizing liquid by driving a pressing plate to press downwards through an air cylinder during the existing geomembrane permeability detection, but the pressurizing mode is easy to damage the geomembrane, and the volume of a water body cannot be changed while the water body is extruded, so that the extruding force degree on the lower geomembrane is higher, the geomembrane is extremely easy to damage, and the following scheme is provided and comprises a detection box. When liquid is pressurized at a constant speed, the air cylinder is adjusted to enable the air plate to be located at the upper end of the liquid but not to be contacted with the liquid, then external air is introduced into the air plate through the high-pressure air pump, the air is blown to the liquid through the air holes, the liquid is pressurized through air pressure, the volume of the liquid does not need to be changed, the pressurizing effect is achieved, and the possibility of damage caused by external factors in the performance detection process of the geomembrane is reduced.
Description
Technical Field
The invention relates to the technical field of geomembrane permeability detection, in particular to a liquid uniform-speed pressurizing device for geomembrane permeability test.
Background
The geomembrane is made of a geotechnical anti-seepage material compounded by a non-woven fabric and a plastic film serving as an anti-seepage base material, and the anti-seepage performance of the new material geomembrane mainly depends on the anti-seepage performance of the plastic film. The plastic film mainly comprises polyvinyl chloride (PVC), Polyethylene (PE) and EVA (ethylene/vinyl acetate copolymer), and the ECB (ethylene vinyl acetate modified asphalt blended geomembrane) is also designed and used in tunnel application, is a high-molecular chemical flexible material, has small specific gravity, strong extensibility, high deformation adaptability, corrosion resistance, low temperature resistance and good freezing resistance, and needs to be subjected to permeability detection in the production process, and liquid needs to be subjected to pressurization treatment by a uniform-speed pressurization device in the detection process.
When the existing geomembrane permeability is detected, the pressing plate is driven to press downwards through the air cylinder so as to pressurize liquid, however, the geomembrane is easily damaged by the pressurizing mode, and the volume of the water body cannot be changed when the water body is extruded, so that the extruding force degree of the geomembrane below is high, and the geomembrane is very easy to damage.
Disclosure of Invention
When detecting based on current geomembrane permeability, all drive the clamp plate through the cylinder and push down to carry out liquid pressurization, however, this kind of pressurization mode causes the damage to the geomembrane easily, and the water receives the extrusion while, and its volume can not produce the change, consequently, the extrusion dynamics that causes the geomembrane of below is great, and at this moment the geomembrane is very easily impaired.
The liquid uniform-speed pressurizing device for testing the permeability of the geomembrane comprises a detection box, wherein fixing frames are fixedly connected to the outer walls of two sides of the detection box, air cylinders are fixedly connected to the outer walls of the tops of the two fixing frames, the outer walls of the bottoms of the two air cylinders are fixedly connected with the same air plate, air holes are formed in the outer walls of the bottoms of the air plates at equal intervals, two high-pressure air pumps are fixedly connected to the outer walls of the tops of the air plates, and air conveying ends of the two high-pressure air pumps are connected to the inner portions of the air plates through pipelines.
Preferably, the equal fixedly connected with of top outer wall that the gas board is close to two high compression pump inlet ends places the frame, and two inner walls of placing the frame all peg graft and have the filter screen, the equal fixedly connected with pull ring of top outer wall of two filter screens.
Preferably, the outer walls of the two sides of the detection box are both provided with through holes, and the outer walls of the two detection boxes positioned outside the through holes are fixedly connected with sealing frames.
Preferably, the outer wall of the detection box located at the outer side of the two through holes is fixedly connected with two fixing plates, and the outer wall of one side of the two fixing plates, which is opposite to the two fixing plates, is fixedly connected with two connecting plates.
Preferably, two equal fixedly connected with two pneumatic cylinders of the relative one side outer wall of connecting plate, and be located the same grip block of the other end fixedly connected with of two pneumatic cylinders on the same connecting plate.
Preferably, the inner wall fixedly connected with backup pad of detection case, and the top outer wall equidistance of backup pad is opened has the water hole of crossing, and the top outer wall equidistance fixedly connected with jack-up piece of backup pad.
Preferably, one side outer wall fixedly connected with drain pipe of detection case, and the outer wall of drain pipe has the valve through flange joint.
Preferably, the equal fixedly connected with fixed block of both sides inner wall of detection case, and the equal fixedly connected with vibrating motor of top outer wall of two fixed blocks, the equal fixedly connected with guide plate of both sides inner wall that the detection case is located two vibrating motor tops.
Preferably, two the equal fixedly connected with curb plate of both sides outer wall of mount, and the impartial distance fixedly connected with spring beam of the bottom outer wall of four curb plates, the equal fixed connection in top outer wall of gas board of the other end of spring beam.
The beneficial effects of the invention are as follows:
1. through being provided with gas board, high compression pump and cylinder, when carrying out liquid at the uniform velocity pressurization, adjust the cylinder makes the gas board be located the liquid upper end, but does not contact, then through high compression pump with external gaseous leading-in gas board, blow to liquid through the gas pocket, pressurize liquid through atmospheric pressure, need not to change the volume of liquid, play the pressor effect, reduce the geomembrane performance testing in-process because of the possibility that external factor caused the damage.
2. Through being provided with the jack-up piece, behind the geomembrane centre gripping, its lower extreme and jack-up piece contact, jack-up piece equidistance distributes in the backup pad, and during the permeability detected, if the damaged condition of geomembrane appeared, on liquid can directly fall into the backup pad of below through the geomembrane, the condition that geomembrane and backup pad closely laminate and cause liquid can't flow down can not appear.
3. Through being provided with vibrating motor and guide plate, the at the uniform velocity pressurized in-process of liquid drives the liquid on the geomembrane through vibrating motor and does slow flow, improves liquid activity to make liquid can flow in the testing process, then improve the accuracy nature of performance testing result.
4. Through being provided with the filter screen and placing the frame, the filter screen is installed in high compression pump inlet end department, filters the gas that gets into high compression pump, prevents that the dust in the gas from causing the shadow to the testing result, and the filter screen is directly placed in placing the frame, is convenient for change it.
5. Through being provided with curb plate and spring beam, when carrying out the regulation of gas board through the pneumatic cylinder, the spring beam is flexible thereupon to play the spacing effect of support to the gas board, improve the fastness after the gas board is adjusted.
Drawings
Fig. 1 is a schematic overall structure diagram of a liquid uniform-speed pressurizing device for geomembrane permeability test according to the present invention;
fig. 2 is a schematic view of a gas plate structure of a liquid uniform-speed pressurizing device for geomembrane permeability test according to the present invention;
fig. 3 is a side view of the overall structure of a liquid uniform-speed pressurizing device for geomembrane permeability test according to the present invention;
fig. 4 is a sectional view of the internal structure of a detection box of a liquid uniform-speed pressurizing device for geomembrane permeability test according to the present invention;
fig. 5 is a schematic structural view of a support plate of a liquid uniform-speed pressurizing device for geomembrane permeability test according to the present invention;
fig. 6 is a schematic view of the overall structure of a liquid uniform-velocity pressurizing device for geomembrane permeability test according to embodiment 2 of the present invention.
In the figure: the device comprises a detection box 1, a high-pressure air pump 2, an air cylinder 3, an air plate 4, a pull ring 5, a filter screen 6, a placement frame 7, a fixing frame 8, a fixing plate 9, a hydraulic cylinder 10, a valve 11, a drain pipe 12, a clamping plate 13, a connecting plate 14, air holes 15, a sealing frame 16, a vibrating motor 17, a fixing block 18, a guide plate 19, a supporting plate 20, a jacking block 21, a through hole 22, a water passing hole 23, a side plate 24 and a spring rod 25.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
Referring to fig. 1-5, a liquid pressure device at uniform velocity of geomembrane permeability test, including detection case 1, the equal fixedly connected with mount 8 of both sides outer wall of detection case 1, and the equal fixedly connected with cylinder 3 of the top outer wall of two mount 8, the same gas board 4 of the bottom outer wall fixedly connected with of two cylinders 3, and the bottom outer wall equidistance of gas board 4 is opened has gas pocket 15, two high compression pumps 2 of the top outer wall fixedly connected with of gas board 4, and the gas transmission end of two high compression pumps 2 all passes through pipe connection in the inside of gas board 4.
According to the invention, the outer walls of the tops of the air plates 4 close to the air inlet ends of the two high-pressure air pumps 2 are fixedly connected with the placing frames 7, the inner walls of the two placing frames 7 are respectively inserted with the filter screens 6, and the outer walls of the tops of the two filter screens 6 are respectively fixedly connected with the pull rings 5.
In the invention, through holes 22 are formed in the outer walls of two sides of each detection box 1, and the outer walls of the two detection boxes 1 positioned outside the through holes 22 are fixedly connected with sealing frames 16.
In the invention, the outer walls of the detection box 1, which are positioned at the outer sides of the two through holes 22, are fixedly connected with the two fixing plates 9, and the outer wall of one side, opposite to the two fixing plates 9, is fixedly connected with the two connecting plates 14.
In the invention, two hydraulic cylinders 10 are fixedly connected to the outer walls of the opposite sides of the two connecting plates 14, and the other ends of the two hydraulic cylinders 10 on the same connecting plate 14 are fixedly connected with the same clamping plate 13.
In the invention, the inner wall of the detection box 1 is fixedly connected with a support plate 20, the outer wall of the top part of the support plate 20 is provided with water through holes 23 at equal intervals, and the outer wall of the top part of the support plate 20 is fixedly connected with jacking blocks 21 at equal intervals.
In the invention, the outer wall of one side of the detection box 1 is fixedly connected with a drain pipe 12, and the outer wall of the drain pipe 12 is connected with a valve 11 through a flange.
In the invention, the inner walls of two sides of the detection box 1 are fixedly connected with fixed blocks 18, the outer walls of the tops of the two fixed blocks 18 are fixedly connected with vibrating motors 17, and the inner walls of two sides of the detection box 1 above the two vibrating motors 17 are fixedly connected with guide plates 19.
During the use, pass two through-holes 22 with the geomembrane, then adjust pneumatic cylinder 10 and drive grip block 13 and carry out the centre gripping to the geomembrane, pour liquid into detection case 1 then, liquid is located the geomembrane top, when evenly pressurizeing liquid, adjust cylinder 3 and drive gas board 4 and push down, make gas board 4 be located the geomembrane top, start high compression pump 2, high compression pump 2 is with the leading-in gas board 4 of external gas, pressurize liquid through gas pocket 15, gaseous before getting into gas board 4, filter screen 6 carries out filtration to it, in the geomembrane performance testing process, start vibrating motor 17, vibrating motor 17 increases liquid flow activity, improve the accuracy nature of testing result.
Example 2
Referring to fig. 6, a liquid pressure device at uniform velocity of geomembrane permeability test, including detection case 1, the equal fixedly connected with mount 8 of both sides outer wall of detection case 1, and the equal fixedly connected with cylinder 3 of the top outer wall of two mount 8, the same gas board 4 of the bottom outer wall fixedly connected with of two cylinders 3, and the bottom outer wall equidistance of gas board 4 is opened there is gas pocket 15, two high compression pumps 2 of the top outer wall fixedly connected with of gas board 4, and the gas transmission end of two high compression pumps 2 all passes through pipe connection in the inside of gas board 4.
According to the invention, the outer walls of the tops of the air plates 4 close to the air inlet ends of the two high-pressure air pumps 2 are fixedly connected with the placing frames 7, the inner walls of the two placing frames 7 are respectively inserted with the filter screens 6, and the outer walls of the tops of the two filter screens 6 are respectively fixedly connected with the pull rings 5.
In the invention, through holes 22 are formed in the outer walls of two sides of the detection box 1, and the outer walls of the two detection boxes 1 positioned outside the through holes 22 are fixedly connected with sealing frames 16.
In the invention, the outer walls of the detection box 1, which are positioned at the outer sides of the two through holes 22, are fixedly connected with the two fixing plates 9, and the outer wall of one side, opposite to the two fixing plates 9, is fixedly connected with the two connecting plates 14.
In the invention, two hydraulic cylinders 10 are fixedly connected to the outer walls of the opposite sides of the two connecting plates 14, and the other ends of the two hydraulic cylinders 10 on the same connecting plate 14 are fixedly connected with the same clamping plate 13.
In the invention, the inner wall of the detection box 1 is fixedly connected with a support plate 20, the outer wall of the top part of the support plate 20 is provided with water through holes 23 at equal intervals, and the outer wall of the top part of the support plate 20 is fixedly connected with jacking blocks 21 at equal intervals.
In the invention, the outer wall of one side of the detection box 1 is fixedly connected with a drain pipe 12, and the outer wall of the drain pipe 12 is connected with a valve 11 through a flange.
In the invention, the inner walls of two sides of the detection box 1 are fixedly connected with fixed blocks 18, the outer walls of the tops of the two fixed blocks 18 are fixedly connected with vibrating motors 17, and the inner walls of two sides of the detection box 1 above the two vibrating motors 17 are fixedly connected with guide plates 19.
Compare in embodiment 1, the equal fixedly connected with curb plate 24 of both sides outer wall of two mounts 8, and the equal distance fixedly connected with spring beam 25 of the bottom outer wall of four curb plates 24, the equal fixed connection in the top outer wall of gas board 4 of the other end of spring beam 25.
During the use, compare in embodiment 1, cylinder 3 drives the in-process that gas board 4 pushed down, and spring beam 25 stretches out and draws back along with it, plays the spacing effect of support to gas board 4 after adjusting through spring beam 25, improves its pressurization in-process, the stability of gas board 4.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The liquid uniform-speed pressurizing device for testing the permeability of the geomembrane comprises a detection box (1) and is characterized in that fixing frames (8) are fixedly connected to the outer walls of two sides of the detection box (1), air cylinders (3) are fixedly connected to the outer walls of the tops of the two fixing frames (8), the outer walls of the bottoms of the two air cylinders (3) are fixedly connected with the same air plate (4), air holes (15) are formed in the outer wall of the bottom of the air plate (4) in an equidistant mode, two high-pressure air pumps (2) are fixedly connected to the outer wall of the top of the air plate (4), and the air conveying ends of the two high-pressure air pumps (2) are connected to the inner portion of the air plate (4) through pipelines; the inner walls of two sides of the detection box (1) are fixedly connected with fixed blocks (18), the outer walls of the tops of the two fixed blocks (18) are fixedly connected with vibrating motors (17), and the inner walls of two sides of the detection box (1) above the two vibrating motors (17) are fixedly connected with guide plates (19); two the equal fixedly connected with curb plate (24) of both sides outer wall of mount (8), and the equal distance fixedly connected with spring beam (25) of the bottom outer wall of four curb plates (24), the equal fixed connection in top outer wall of gas board (4) of the other end of spring beam (25).
2. The liquid uniform-speed pressurizing device for the geomembrane permeability test according to claim 1, wherein the top outer walls of the air plates (4) close to the air inlet ends of the two high-pressure air pumps (2) are fixedly connected with placing frames (7), the inner walls of the two placing frames (7) are respectively inserted with filter screens (6), and the top outer walls of the two filter screens (6) are respectively fixedly connected with pull rings (5).
3. The liquid uniform-speed pressurizing device for the geomembrane permeability test is characterized in that through holes (22) are formed in the outer walls of two sides of each detection box (1), and sealing frames (16) are fixedly connected to the outer walls, located on the outer sides of the through holes (22), of the two detection boxes (1).
4. The liquid uniform-speed pressurizing device for the geomembrane permeability test according to claim 3, wherein the outer walls of the detection box (1) at the outer sides of the two through holes (22) are fixedly connected with two fixing plates (9), and the outer wall at the opposite side of the two fixing plates (9) is fixedly connected with two connecting plates (14).
5. The liquid uniform-speed pressurizing device for the geomembrane permeability test according to claim 4, wherein two hydraulic cylinders (10) are fixedly connected to the outer wall of one side of each of the two connecting plates (14), and the other ends of the two hydraulic cylinders (10) on the same connecting plate (14) are fixedly connected with the same clamping plate (13).
6. The liquid uniform-speed pressurizing device for the geomembrane permeability test is characterized in that a supporting plate (20) is fixedly connected to the inner wall of the detection box (1), water through holes (23) are formed in the outer wall of the top of the supporting plate (20) at equal intervals, and jacking blocks (21) are fixedly connected to the outer wall of the top of the supporting plate (20) at equal intervals.
7. The liquid uniform-speed pressurizing device for the geomembrane permeability test according to claim 1, wherein a drain pipe (12) is fixedly connected to the outer wall of one side of the detection box (1), and a valve (11) is connected to the outer wall of the drain pipe (12) through a flange.
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| CN202010878622.XA CN111997943B (en) | 2020-08-27 | 2020-08-27 | Liquid uniform-speed pressurizing device for testing permeability of geomembrane |
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| CN202010878622.XA CN111997943B (en) | 2020-08-27 | 2020-08-27 | Liquid uniform-speed pressurizing device for testing permeability of geomembrane |
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| CN111997943B true CN111997943B (en) | 2022-08-12 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8596110B2 (en) * | 2011-03-14 | 2013-12-03 | King Fahd University Of Petroleum And Minerals | Device and method for testing reverse osmosis membranes |
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|---|---|---|---|---|
| CN201196634Y (en) * | 2007-10-30 | 2009-02-18 | 河南理工大学 | Coal rock, gas coupling osmosis bidirectional loading tester |
| CN202956328U (en) * | 2012-12-07 | 2013-05-29 | 浙江土工仪器制造有限公司 | Geomembrane impermeability tester |
| CN203490157U (en) * | 2013-09-24 | 2014-03-19 | 福建中意铁科新型材料有限公司 | Geomembrane test anti-seepage instrument |
| CN205826478U (en) * | 2016-07-18 | 2016-12-21 | 山东省水利科学研究院 | A kind of geomembrane impermeability analyzer |
| CN206710262U (en) * | 2016-09-28 | 2017-12-05 | 山西省交通科学研究院 | A kind of geotechnological film penetration instrument |
| CN110186834A (en) * | 2019-07-17 | 2019-08-30 | 安徽智泓净化科技股份有限公司 | A kind of sealant is to reverse osmosis permeability of the membrane detection device and detection method |
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