CN109540680A - A kind of Miniature tension meter is rapidly saturated device - Google Patents
A kind of Miniature tension meter is rapidly saturated device Download PDFInfo
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- CN109540680A CN109540680A CN201811485810.5A CN201811485810A CN109540680A CN 109540680 A CN109540680 A CN 109540680A CN 201811485810 A CN201811485810 A CN 201811485810A CN 109540680 A CN109540680 A CN 109540680A
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- 229920006395 saturated elastomer Polymers 0.000 title claims abstract description 43
- 239000004927 clay Substances 0.000 claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 229920001971 elastomer Polymers 0.000 claims description 14
- 239000008400 supply water Substances 0.000 claims 1
- HPNSNYBUADCFDR-UHFFFAOYSA-N chromafenozide Chemical compound CC1=CC(C)=CC(C(=O)N(NC(=O)C=2C(=C3CCCOC3=CC=2)C)C(C)(C)C)=C1 HPNSNYBUADCFDR-UHFFFAOYSA-N 0.000 abstract description 15
- 238000005259 measurement Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 230000035484 reaction time Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 11
- 238000007789 sealing Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000007872 degassing Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000005499 meniscus Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229940099259 vaseline Drugs 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of Miniature tension meters to be rapidly saturated device, including pumped vacuum systems, saturation system and water storage system.Miniature tension flowmeter sensor and vitrified-clay pipe are separately fixed in sensor saturated rings and vitrified-clay pipe mounting hole by the invention.During vacuumizing, by the effect of vibration of wireless vibration excitor, the bubble of sensor internal can be discharged, to effectively improve the degree of saturation of sensor, in addition, degassed water is gradually injected pot clay end reservoir chamber and under the action of atmospheric pressure, it is gradually saturated pot clay end.Experimental rig operation sequence of the present invention is easy, it can quickly and synchronously be saturated sensor and pot clay end, saturation effect is good, the reaction time of tensometer measurement matric suction can not only shortened, high air-entry value pot clay end can more be postponed, the time of cavitation pitting occurs, to improve ability of the high air-entry value Miniature tension meter measurement more than 85kPa matric suction.
Description
Technical field
The present invention relates to a kind of Miniature tension meters to be rapidly saturated device device.The device can effectively be saturated more Miniature tensions
Meter, and degree of saturation is high, can effectively improve ability of the high air-entry value Miniature tension meter measurement more than 85kPa matric suction.
Background technique
Analysis of The Seepage, shearing strength, the body of unsaturated soil become and settlement calculation all has close relationship with matric suction,
Therefore matric suction is the basis of unsaturated soil theory of mechanics system, has important meaning to the Mechanical Characters of Composite Ground for explaining unsaturated soil
Justice.There are many kinds of the method for measurement of matric suction, but compared with other methods, Miniature tension meter is not only easy to carry, and by
It is short in the reaction time of matric suction balance, thus at the scene, it is indoor in model test using increasingly extensive.In addition, with
The progress of tensometer technology, developed high air-entry value Miniature tension meter, it can measure be more than 85kPa matric suction,
But it is higher than general Miniature tension meter to pot clay end and the requirement of sensor degree of saturation, this traditionally to utilize syringe
Respectively to the syringe saturation of Miniature tension flowmeter sensor and pot clay end pumping, it has been difficult to meet high air-entry value Miniature tension meter
Degree of saturation requirement.Using tradition saturation, there is also following deficiencies simultaneously:
1. the saturation effect of Miniature tension meter is difficult to control.The degree of saturation of traditional syringe saturation is not easy to control,
It is commonly present the low problem of degree of saturation, causes the reaction time of measurement matric suction to lengthen, high air-entry value pot clay end can also mentioned
Preceding generation cavitation pitting, to reduce ability of the high air-entry value Miniature tension meter measurement more than 85kPa matric suction.
2. the saturation efficiency of Miniature tension meter is low.Traditional glass syringe method saturation, can only single branch be saturated by several times, Bu Nengtong
When be saturated more tensometers, will be taken considerable time if you need to the Miniature tension meter for being saturated more.
3. the poor operability of Miniature tension meter saturation process.Traditional syringe saturation need to tension flowmeter sensor and
Pot clay end is saturated respectively, and is also needed in saturation process by the air for tapping discharge sensor internal manually, inconvenient.
Summary of the invention
To solve disadvantages mentioned above and shortcoming, the present invention provides a kind of Miniature tension meters to be rapidly saturated device device, should
Device can effectively be saturated more Miniature tension meters, and the degree of saturation of sensor and pot clay end is high, can effectively improve high air-entry value
Miniature tension meter measures the ability more than 85kPa matric suction.
In order to achieve the goal above, the present invention devises pumped vacuum systems, saturation system and water storage system.
The saturation system includes sensor saturation room, storage line room and clay protection of pipe room.The sensor is full
It is equipped with wireless vibration excitor with room, sensor is fixed by sensor saturated rings with O-ring seal, and wherein by degassed water injection.
Vitrified-clay pipe needs guiding through inverted rubber stopper and is fixed on vitrified-clay pipe mounting hole.After being installed, by vacuumizing, filling the water and start
Wireless vibration excitor can be saturated sensor and pot clay end.
The pumped vacuum systems includes vacuum pump, vacuum meter, conduit.Suction catheters one end is connected with vacuum pump, another
End is connected with the top cover of vacuum barrel.
The saturation system includes sensor saturation room, storage line room, clay protection of pipe room.It is sensing that sensor, which is saturated room,
Device saturation provides separate space.Storage line room, which facilitates, places sensor connecting line.Clay protection of pipe room is vacuumizing and vibration processes
In, influence of the sensor connecting line to vitrified-clay pipe can be obstructed.
The water storage system includes water storage bottle and reservoir chamber, is connected between water storage bottle and reservoir chamber by conduit and valve
It connects, is supplied water from water storage bottle to reservoir chamber.
The bottom plate of the vacuum barrel is equipped with pot clay end mounting hole.
Rubber washer is equipped between the top cover and vacuum barrel, for sealing vacuum barrel.
The top cover is equipped with vacuum meter, for monitoring the vacuum degree of saturation system.
The sensor is fixed by sensor saturated rings.
The sensor saturation room is provided with wireless vibration excitor, and sensor saturation room back plate vibration can be allowed to pass with benefit discharge
Bubble in sensor.
The storage line chamber interior walls are fixed with wireless vibration excitor power supply.
The storage line room is provided with spring, for reinforcing the vibration of sensor saturation room bottom plate.
The vitrified-clay pipe passes through inverted rubber stopper and is fixed on vitrified-clay pipe mounting hole.
The reservoir chamber bottom plate is covered with sponge bed course, for protecting pot clay end.
The reservoir chamber is connected with valve, as reservoir chamber and external blow vent.
It is provided with flange between the clay protection of pipe room and reservoir chamber, for being connected and fixed saturation system and water storage system
System, and facilitate carrying.
Compared to the prior art, the present invention has the following advantages:
1. the saturation effect of Miniature tension meter is easy to control.Effect of vibration of the sensor by wireless vibration excitor, can effectively arrange
Sensor internal bubble out, and degassed water can effectively fill the pore channel of pot clay end, make the anti-of tensometer measurement matric suction
Shorten between seasonable, and postpone the time for generating cavitation pitting inside high air-entry value pot clay end, to improve high air-entry value Miniature tension meter
Ability of the measurement more than 85kPa matric suction.
2. improving the saturation efficiency of Miniature tension meter.The quantity that single is saturated tensometer increases, and saturation time shortens.
3. enhancing the operability of Miniature tension meter saturation process.It only needs to fix vitrified-clay pipe across inverted rubber stopper
It is fixed in sensor saturated rings on vitrified-clay pipe mounting hole, then by sensor, and gives the water storage of sensor saturated rings, vacuumize,
Wireless vibration excitor is filled the water and starts, operating process is easy.
Detailed description of the invention
Fig. 1 is that Miniature tension meter provided by the invention is rapidly saturated device structural schematic diagram.
1- pumped vacuum systems in figure, 2- saturation system, 3- water storage system, 4- top cover, 4-1 rubber washer, 5- vacuum pump, 6-
Exhaust tube, 7- valve, 8- vacuum meter, 9- sensor are saturated room, 9-1- is wireless vibration excitor, 9-2- sensor saturated rings, 9-3- biography
Sensor, 9-4-O type sealing ring, 9-5- sensor are saturated room bottom plate, 9-6- is wireless vibration excitor power supply, 10- storage line room, 10-1- storage
Line room bottom plate, 10-2- storage line room supporting clapboard, 10-3 spring, 10-4 supporting clapboard, 10-5 gas port, 11- clay protection of pipe
Room, 11-1- vitrified-clay pipe mounting hole, 11-2- vitrified-clay pipe, 11-3- have hole rubber stopper, 11-4- pot clay end, 12- reservoir chamber, 12-1-
Sponge bed course, 12-2- valve, 13- bracket, 14- water storage bottle, 15- drainpipe, 16- valve, 17- vacuum barrel, 18- water butt,
19- handle, 20- flange, 20-1- seal washer, 20-2- screw.
Specific embodiment
1 the present invention will be described in detail with reference to the accompanying drawing.
As shown in Figure 1, vacuumizing saturation tensometer experimental rig, comprising: pumped vacuum systems 1, saturation system 2, water storage system
System 3.
The connection type of each component of pumped vacuum systems 1 is as described below: 6 one end of exhaust tube connects vacuum pump 5, another
End is connected with vacuum barrel top cover 4 by valve 7, and vacuum meter 8 is installed on vacuum barrel top cover 4, is put between top cover 4 and vacuum barrel 17
Set rubber washer 4-1.
The saturation system includes sensor saturation room 9, storage line room 10, clay protection of pipe room 11.
The sensor saturation room 9 is separated by vacuum barrel top cover 4, sensor saturation room bottom plate 9-5.Sensor is full
Be that aperture shape which is provided with sensor saturated rings 9-2 with room bottom plate 9-5, sensor 9-3 by sensor saturated rings 9-2 with it is O-shaped
Sealing ring sealing 9-4 is fixed.The sensor 9-3 fixed is lain in a horizontal plane in into support together with sensor saturation room bottom plate 9-5 again
On partition 10-4, spring 10-3, sensor wire portion are provided between sensor saturation room bottom plate 9-5 and supporting clapboard 10-4
Divide and be then placed in storage line room 10, in sensor saturated rings 9-2 plus degassed water, water level must not have sensor 9-3, then wireless sharp
Vibration device 9-1 is fixed on sensor saturation room bottom plate 9-5.Can according to the actual situation, the appropriate quantity for increasing and decreasing sensor 9-3.
The storage line room 10 is separated by sensor saturation room bottom plate 9-5 and storage line room bottom plate 10-1.Aperture
Storage line room bottom plate 10-1 is lain in a horizontal plane on the supporting clapboard 10-2 of storage line room.
The clay protection of pipe room 11 is separated by storage line room bottom plate 10-1 and the bottom plate of vacuum barrel 17.Vacuum barrel 17
Bottom plate be equipped with vitrified-clay pipe mounting hole 11-1.Vitrified-clay pipe 11-2 passes through inverted rubber stopper 11-3 and is fixed on vitrified-clay pipe mounting hole
On 11-1.Such as without being saturated more vitrified-clay pipes, then remaining vitrified-clay pipe mounting hole 11-1 needs rubber stopper solid beyond the Great Wall.Flange 20
It can be used for being connected and fixed vacuum barrel 17 and water butt 18.
The water storage system includes reservoir chamber 12, water storage bottle 14, bracket 13, drainpipe 15, valve 16.Sponge bed course
12-1 is for protecting tensometer pot clay end 11-4.Water storage bottle 14 is supplied water by drainpipe 15 to reservoir chamber 12.
Use step of the invention:
(1) vitrified-clay pipe 11-2 passes through inverted rubber stopper 11-3 and is fixed on vitrified-clay pipe mounting hole 11-1, remaining vitrified-clay pipe peace
Fill hole solid rubber plug beyond the Great Wall.
(2) vacuum barrel 17 is placed on water butt 18, tightens the screw 20-2 on flange 20.
(3) storage line room bottom plate 10-1 is placed on the supporting clapboard 10-2 of storage line room.
(4) sensor 9-3 is fixed in sensor saturated rings 9-2 simultaneously water storage, then puts it into sensor saturation room, and
Sensor wire part is then placed in storage line room 10, and connects wireless vibration excitor 9-1 and wireless vibration excitor power supply 9-6.
(5) vacuum barrel top cover 4 is covered, pad places rubber washer 4-1 between top cover 4 and vacuum barrel 17, and coats vaseline,
Enhance the leakproofness between top cover 4 and vacuum barrel 17.
(6) valve 16 and valve 12-2 are closed, opens valve 7, extract vacuum barrel 17, sensor 9-3, vitrified-clay pipe 11-2 with
And the gas in pot clay end 11-4, lasting to be evacuated after vacuum degree is close to 1 atmosphere negative pressure, opening valve 16 infuses degassed water
Enter in reservoir chamber 12, when liquid level is close to pot clay end 11-4, turn down valve 16, the degasification water level of injection is made not have clay slowly
Stop water filling after 1-2cm at the top of head 11-4.
(7) start wireless vibration excitor 9-1, the bubble in sensor 9-3 is discharged.
(8) valve 12-2 is opened, reservoir chamber 12 is connected to outside, using atmospheric pressure, pot clay end 11-4 is made gradually to satisfy
With.
(9) when the liquid level of water in pot clay end 11-4 is higher than the liquid level of water in reservoir chamber 12, stop pumping.
(10) pot clay end 11-4, sensor 9-3 after being saturated are removed.
(11) connecting needs before sensor and pot clay end with syringe to filling degasification in vitrified-clay pipe 11-2 and sensor 9-3
Water, port position need to be in the meniscus of evagination, then vitrified-clay pipe 11-2 is connected with sensor 9-3.
The invention discloses a kind of Miniature tension meters to be rapidly saturated device, by pumped vacuum systems, saturation system and water storage system
System composition.The device can effectively be saturated more Miniature tension meters, and degree of saturation is high and easy to control, and tensometer is made to measure matric suction
Reaction time shorten, can more postpone the time that water in high air-entry value pot clay end generates cavitation pitting, so that it is micro- to improve high air-entry value
Type tensometer measures the ability more than 85kPa matric suction.In addition, the quantity of single saturation tensometer increases, and saturation time
Shorten, improves the saturation efficiency of Miniature tension meter.Saturation process only needs to be fixed on sensor in sensor saturated rings and store
Water, then vitrified-clay pipe is passed through into inverted rubber stopper and is fixed on vitrified-clay pipe mounting hole, it vacuumizes, fill the water and start wireless vibration excitor
, operating process simplicity.
The above is only the preferable embodiment of the present invention, does not do any restrictions to the present invention, be equally applicable to other classes
Type tensometer.All any modification, change and equivalent structure made to the above embodiment according to the technical essence of the invention become
It changes, should belong to technical solution of the present invention protection scope.
Claims (7)
1. Miniature tension meter is rapidly saturated device, including pumped vacuum systems (1), saturation system (2), water storage system (3).
The pumped vacuum systems includes vacuum pump (5), vacuum meter (8), suction catheters (6).Suction catheters one end and vacuum pump
It is connected, the other end is connected with the top cover (4) of vacuum barrel.
The saturation system (2) includes sensor saturation room (9), storage line room (10), clay protection of pipe room (11).By vacuum barrel
(17), sensor saturation room bottom plate (9-5) and storage line room bottom plate (10-1) form.
The water storage system (3) includes water storage bottle (14), reservoir chamber (12).Pass through between water storage bottle (14) and reservoir chamber (12)
Conduit (15) connection, water storage bottle (14) supply water to reservoir chamber (12).Water storage system (3) can be split with saturation system (2).
2. Miniature tension meter according to claim 1 is rapidly saturated device, it is characterised in that: the bottom of the vacuum barrel (17)
Plate is equipped with vitrified-clay pipe mounting hole (11-1).
3. Miniature tension meter according to claim 1 is rapidly saturated device, it is characterised in that: the sensor is saturated room
(9) it is provided with wireless vibration excitor (9-1).
4. Miniature tension meter according to claim 1 is rapidly saturated device, it is characterised in that: the sensor (9-3) is logical
It is fixed to cross sensor saturated rings (9-2).
5. Miniature tension meter according to claim 1 is rapidly saturated device, it is characterised in that: the supporting clapboard (10-4)
Spring (10-3) is equipped between sensor saturation room bottom plate (9-5).
6. Miniature tension meter according to claim 1 is rapidly saturated device, it is characterised in that: the vitrified-clay pipe (11-2) is worn
Inverted rubber stopper (11-3) is crossed to be fixed on vitrified-clay pipe mounting hole (11-1).
7. Miniature tension meter according to claim 1 is rapidly saturated device, it is characterised in that: the sponge bed course (12-1)
It is placed on reservoir chamber (12) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811485810.5A CN109540680B (en) | 2018-12-06 | 2018-12-06 | Quick saturator of miniature tensiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811485810.5A CN109540680B (en) | 2018-12-06 | 2018-12-06 | Quick saturator of miniature tensiometer |
Publications (2)
| Publication Number | Publication Date |
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| CN109540680A true CN109540680A (en) | 2019-03-29 |
| CN109540680B CN109540680B (en) | 2022-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811485810.5A Active CN109540680B (en) | 2018-12-06 | 2018-12-06 | Quick saturator of miniature tensiometer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115615878A (en) * | 2022-09-23 | 2023-01-17 | 浙江大学 | Automatic saturation device of high-range tensiometer and saturation manufacturing method |
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2018
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| CN115615878B (en) * | 2022-09-23 | 2024-01-23 | 浙江大学 | Automatic saturation device of high-range tensiometer and saturation manufacturing method |
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| CN109540680B (en) | 2022-08-05 |
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