CN204008400U - A kind of flexible barrier material infiltration dissolved corrosion test device - Google Patents
A kind of flexible barrier material infiltration dissolved corrosion test device Download PDFInfo
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- CN204008400U CN204008400U CN201420433787.6U CN201420433787U CN204008400U CN 204008400 U CN204008400 U CN 204008400U CN 201420433787 U CN201420433787 U CN 201420433787U CN 204008400 U CN204008400 U CN 204008400U
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Abstract
The utility model discloses a kind of flexible barrier material infiltration dissolved corrosion test device, comprise pressure water tank, infiltration corrosion pressure chamber and static pressure switch board, pressure water tank is connected with infiltration corrosion pressure chamber; Infiltration is provided with a specimen mount in corrosion pressure chamber, is provided with a rotation upper cover corresponding thereto directly over described specimen mount, between rotation upper cover and specimen mount, has formed a space; In rotation upper cover, be provided with the apopore that bottom communicates with sample, top communicates with rising pipe, apopore is connected with rising pipe, outside the logical pressure chamber of rising pipe; Specimen mount inside is provided with that top communicates with sample, bottom and extraneous drainage pore and the seepage pressure interface communicating; Seepage pressure interface is connected with seepage pressure water pot; Drainage pore is connected with drainage tracheae; The side of specimen mount is provided with ambient pressure interface, is connected to static pressure switch board by pressure line, when test, permeates dissolved corrosion test by static pressure cabinet pressure regulation pressure regulating valve.
Description
Technical field
The utility model relates to a kind of infiltration dissolved corrosion test device, especially a kind of flexible barrier material building body infiltration dissolved corrosion test device.
Background technology
Flexible barrier material is widely used in diaphragm wall that hydraulic engineering dam foundation, dike seepage control reinforce, and they are in underground, and in most cases in fresh water environment, works, and is subject to for a long time the corrosion of underground water.Corrosion, also claim leaching corrosion, refer in the time that flexible barrier material building body is subject to the seepage effect of press water in environment, calcium hydroxide in building body is diffused into gradually in the Environmental Water that concentration is very low and goes, like this, solid phase hydrated minerals in silicate is just separated out lime automatically to supplement the calcium hydroxide content in liquid phase, so as to recovering concentration balance.If these lime water are pulled away again under seepage effect, solid matter continues to dissolve again, lime concentration in solution keeps while reduction, the calcium in hydrated calcium silicate, drated calcium aluminate, aquation calcium aluminoferrite is also incited somebody to action loss by dissolution in succession, finally causes antiseepage building body structure that the process of destroying occurs.Corrosion problem is directly connected to trouble free service and the serviceable life of antiseepage building body, not yet has the flexible barrier material infiltration dissolved corrosion test product of sizing at present.
Chinese patent application 201110191480.0 discloses a kind of plastic concrete permeability tester and test method thereof, this device is a device that is exclusively used in infiltration coefficient test, cannot permeate dissolved corrosion test, because 1. not only amount of seepage is very large for infiltration dissolved corrosion test, and test period reaches the several months conventionally, it is very difficult utilizing the water yield of oozing out of each time period of manual record, and plastic concrete permeability tester is without automatic hourly observation system, can not meet the measuring requirement of each time period to test amount of seepage; The pressure chamber of 2 plastic concrete permeability testers is upper and lower two-layer sealing, and because the ambient pressure that infiltration dissolved corrosion test applies is relatively large, this design is more easily leaked gas, and it is good that sealing effectiveness is not so good as integral type.
Utility model content
The shortcoming existing in order to solve prior art, the utility model discloses a kind of flexible barrier material infiltration dissolved corrosion test system and test method thereof.
The technical solution adopted in the utility model is as follows:
A kind of flexible barrier material infiltration dissolved corrosion test device, comprises pressure water tank, infiltration corrosion pressure chamber and static pressure switch board, and described pressure water tank is connected with infiltration corrosion pressure chamber, for it provides seepage water pressure; In described infiltration corrosion pressure chamber, be provided with a specimen mount, directly over described specimen mount, be provided with a rotation upper cover corresponding thereto, between rotation upper cover and specimen mount, formed one for laying the space of sample and permeable stone; Be provided with in rotation the apopore that bottom communicates with sample, top communicates with rising pipe in upper cover, apopore is connected with rising pipe, and rising pipe one, outside pressure chamber, and is connected with flowmeter; Described specimen mount inside is provided with that top communicates with sample, bottom and extraneous drainage pore and the seepage pressure interface communicating; Seepage pressure interface is connected with seepage pressure water pot; Drainage pore is connected with drainage tracheae; The side of described specimen mount is provided with ambient pressure interface, is connected to static pressure switch board by pressure line, when test, permeates dissolved corrosion test by static pressure cabinet pressure regulation pressure regulating valve.
Described infiltration corrosion pressure chamber comprises pressure chamber's stationary installation and pressure chamber's outer cover; Described pressure chamber's stationary installation comprises pressure chamber's base, triangular supports and column, and they are fixedly connected with; Between described pressure chamber's outer cover and pressure chamber's base, be connected by an abutment ring, abutment ring is provided with two handles; Outer cover top, pressure chamber and an end cap are threaded connection; In described pressure chamber's outer cover, be provided with a triangular supports, described support is connected with pressure chamber's base by column, and support is provided with and the circular hole of sample same diameter, and tolerable sample upper cover is through carriage center, and regulates highly by screw thread rotation.
Described static pressure switch board device, comprises two pressure regulator valves and two precision pressure gauges, is arranged on respectively on the panel of switch board, forms a set of complete static pressure control system; Pneumatic supply is respectively seepage water pressure tank by two-way valve and pressure chamber's confined pressure provides pressure; Described seepage pressure water pot is connected with water source, and pneumatic supply exerts pressure to seepage pressure water pot by seepage pressure pressure regulator valve, and air pressure is connected with seepage pressure interface after being converted to hydraulic pressure, realizes the seepage water pressure of dissolved corrosion test; Applying of described pressure chamber's ambient pressure, is, by ambient pressure pressure regulator valve, inside, pressure chamber is applied to ambient pressure, and this pressure should be greater than the seepage water pressure of sample, and this measure can prevent that sidewall is around oozing.
In described rotation, cover and be provided with a coupled handle.
Be equipped with permeable stone at described sample rotation upper cover bottom, specimen mount top, described sample is placed between two permeable stones.
Described infiltration corrosion pressure chamber's adapter and water inlet, water outlet, osculum connecting pipe are equipped with check valve door.
Test method of the present utility model is as follows:
1. by sample upper and lower surface hacking, with the cement serous coat of the sample water permeability of eliminating the effects of the act;
2. evenly coat encapsulant silicon rubber at the side surface of right cylinder sample, and the sample of handling well is soaked more than 24 hours in clear water, or it is saturated to carry out vacuum with saturated tank;
3. latex film is bundled in to specimen mount, places respectively lower permeable stone, sample, upper dankness stone.Adjust upper cover height by the rotation of upper cover handle, be advisable until the lower surface of movable top lid has just contacted upper dankness stone.Latex film is tightened in the groove of movable top lid to test specimen installation;
4. pressure chamber's outer cover is positioned on pressure chamber's base, screws pressure chamber by handle, and check whether pressure chamber has gas leak phenomenon.
5. open the valve that seepage pressure is taken over, apply the seepage water pressure of 0.05MPa by control panel, the air of bringing between latex film and sample in dress sample process is discharged by rising pipe; After sample exhaust gas inside completes, close seepage water pressure and take over valve, remove seepage pressure; In pressure chamber, apply the ambient pressure of 0.05MPa, inner sample superfluous water is discharged, after determining without superfluous water and gas, open seepage water pressure and take over valve, permeate dissolved corrosion test.
6. fall according to prior selected infiltration ratio, apply ambient pressure and infiltration water and compress into row test in pressure chamber, for guaranteeing the accuracy of test findings, when test, seepage pressure is less than ambient pressure in pressure chamber, guarantees that latex film is adjacent to sample, prevents around oozing.
7. by flowmeter survey real-time ooze out the water yield, every 24 hour records accumulative total on same day amount of seepages, and detect Ca in water seepage on the same day
2+content.
8. monitor in real time flow instrument data, in the time that flow instrument data become suddenly large, should stop test.
9. close seepage pressure and take over valve, remove seepage pressure and ambient pressure, open drainage air valve, by drainage tracheae, the remaining water in sample and pipeline is discharged, the pressure chamber of outwarding winding, removes latex film, takes down sample, and dissolved corrosion test completes;
10. arrange out Ca
2+same day stripping quantity and infiltration lasts relation line, CaO accumulation stripping quantity and infiltration and lasts relation line.
The beneficial effects of the utility model are as follows:
1, pressure chamber structure is divided into two parts: the base of (1), test unit is fixedly connected with the column that triangular supports distributes by three equilateral triangles, and this part is pressure chamber's fixed part.Support is provided with the circular hole with sample same diameter, and tolerable sample upper cover passes carriage center, and regulates height by screw thread rotation.Sample upper cover center is provided with the apopore that runs through upper and lower, is connected with rising pipe.(2), pressure chamber's cover part.Pressure chamber's outer cover, for integral type designs, by the handle on abutment ring, is tightened to as a whole infiltration dissolved corrosion test device pressure chamber with base rotation.Integral type design makes pressure chamber stressed evenly, and simple in structure, sealing effectiveness is better.
2, sample is carried out to gluing and wrap up in film, and make the ambient pressure applying be greater than seepage pressure, prevented that the sidewall of infiltration water is around oozing, ensured the stable and accurate of test findings.
3, this instrument can obtain the infiltration coefficient of each time period of sample in the process of dissolved corrosion test simultaneously, and specific aim and the Efficiency of test improve greatly.
4, sample upper cover is designed to screw thread rotation articulated with the form that connects of triangular supports, this design can be according to different specimen height, suitably adjust the spacing of movable top lid and specimen mount, avoid specimen height to be limited by constant spacing and cause sample to be reprocessed.
Brief description of the drawings
Fig. 1 one-piece construction figure of the present utility model;
Fig. 2 permeates the structural drawing of dissolved corrosion test pressure chamber;
Fig. 3 static pressure switch board schematic diagram;
In figure: 1 outer cover, 2 rotation upper cover handles, 3 rising pipes, 4 permeable stones, 5 samples, 6 specimen mount, 7 ambient pressure interfaces, 8 drainage tracheaes, 9 seepage pressure interfaces, 10 pressure chamber's base supports, 11 pressure chamber's bases, 12 flowmeter interfaces, 13 O-ring seals, 14 handles, 15 abutment rings, 16 columns, 17 rotation upper covers, 18 triangular supports, 19 seepage pressure pressure regulator valves, 20 seepage pressure water pots, 21 infiltration corrosion pressure chambers; 22 pneumatic supplies, 23 ambient pressure pressure regulator valves.
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated:
A kind of flexible barrier material infiltration dissolved corrosion test device, comprises seepage pressure water pot 20, infiltration corrosion pressure chamber 21 and static pressure switch board 22; Seepage pressure water pot is connected with infiltration corrosion pressure chamber, for it provides seepage water pressure;
Infiltration corrosion pressure chamber comprises pressure chamber's stationary installation and pressure chamber's outer cover 1; Pressure chamber's stationary installation comprises pressure chamber's base 11, triangular supports 18 and column 16, between described pressure chamber's outer cover 1 and pressure chamber's base 11, is connected by an abutment ring 15, and abutment ring 15 is provided with handle 14; Pressure chamber's outer cover 1 top and an end cap are threaded connection; In described pressure chamber's outer cover, be provided with a triangular supports, described support is connected with pressure chamber's base by column, and support is provided with and the circular hole of sample same diameter, and tolerable sample upper cover is through carriage center, and regulates highly by screw thread rotation.
In pressure chamber's outer cover 1, be provided with a specimen mount 6 being placed on pressure chamber's base, directly over described specimen mount, be provided with the rotation upper cover 17 that can regulate by rotation upper cover handle 2 height, between described rotation upper cover and specimen mount for laying sample 5 and permeable stone 4; In rotation, tops is provided with a water delivering orifice, directly leads to pressure chamber's base by rising pipe 3, is connected with Flow Observation system at flowmeter interface 12 places; Specimen mount 6 is provided with the drainage tracheae 8 and the seepage pressure interface 9 that communicate with the external world; The side of specimen mount is provided with the ambient pressure interface 7 that can apply to sample ambient pressure; Pressure chamber's outer cover 1 on pressure chamber's base, is provided with O-ring seal 13 by with handles 14 rotatable abutment ring 15 screw-tightened between pressure chamber's base and abutment ring, so just formed a complete infiltration dissolved corrosion test pressure chamber.
Static pressure switch board device, is made up of two pressure regulator valves and two precision pressure gauges, is arranged on respectively on the panel of switch board, forms a set of complete static pressure control system; Pneumatic supply 22 is respectively seepage water pressure tank by two-way valve and pressure chamber's confined pressure provides pressure.Pneumatic supply 22 is exerted pressure to seepage pressure water pot by seepage pressure pressure regulator valve 19, and air pressure is connected with seepage pressure interface 9 after being converted to hydraulic pressure, realizes the seepage water pressure of dissolved corrosion test; Applying of described pressure chamber's ambient pressure, is, by ambient pressure pressure regulator valve 23, inside, pressure chamber is applied to ambient pressure, and this pressure should be greater than the seepage water pressure of sample, and this measure can prevent that sidewall is around oozing.
Test method of the present utility model is as follows:
1. by sample upper and lower surface hacking, with the cement serous coat of the sample water permeability of eliminating the effects of the act;
2. evenly coat encapsulant silicon rubber at the side surface of right cylinder sample, and the sample of handling well is soaked more than 24 hours in clear water, or it is saturated to carry out vacuum with saturated tank;
3. latex film is bundled in to specimen mount, places respectively lower permeable stone, sample, upper dankness stone.Adjust upper cover height by the rotation of upper cover handle, be advisable until the lower surface of movable top lid has just contacted upper dankness stone.Latex film is tightened in the groove of movable top lid to test specimen installation;
4. pressure chamber's outer cover is positioned on pressure chamber's base, screws pressure chamber by handle, and check whether pressure chamber has gas leak phenomenon.
5. open the valve that seepage pressure is taken over, apply the seepage water pressure of 0.05MPa by control panel, the air of bringing between latex film and sample in dress sample process is discharged by rising pipe; After sample exhaust gas inside completes, close seepage water pressure and take over valve, remove seepage pressure; In pressure chamber, apply the ambient pressure of 0.05MPa, inner sample superfluous water is discharged, after determining without superfluous water and gas, carry out corrosion, permeability test.
6. fall according to prior selected infiltration ratio, apply ambient pressure and infiltration water and compress into row test in pressure chamber, for guaranteeing the accuracy of test findings, when test, seepage pressure is less than ambient pressure in pressure chamber, guarantees that latex film is adjacent to sample, prevents around oozing.
7. by flowmeter survey real-time ooze out the water yield, every 24 hour records accumulative total on same day amount of seepages, and detect Ca in water seepage on the same day
2+content.
8. monitor in real time flow instrument data, in the time that flow instrument data become suddenly large, should stop test.
9. close seepage pressure and take over valve, remove seepage pressure and ambient pressure, open drainage air valve, by drainage tracheae, the remaining water in sample and pipeline is discharged, the pressure chamber of outwarding winding, removes latex film, takes down sample, and dissolved corrosion test completes;
10. arrange out Ca
2+same day stripping quantity and infiltration lasts relation line, CaO accumulation stripping quantity and infiltration and lasts relation line.
Claims (7)
1. a flexible barrier material infiltration dissolved corrosion test device, is characterized in that: comprise pressure water tank, infiltration corrosion pressure chamber and static pressure switch board, described pressure water tank is connected with infiltration corrosion pressure chamber, for it provides seepage water pressure; In described infiltration corrosion pressure chamber, be provided with a specimen mount, directly over described specimen mount, be provided with a rotation upper cover corresponding thereto, between rotation upper cover and specimen mount, formed one for laying the space of sample and permeable stone; Be provided with in rotation the apopore that bottom communicates with sample, top communicates with rising pipe in upper cover, apopore is connected with rising pipe, and rising pipe one, outside pressure chamber, and is connected with flowmeter; Described specimen mount inside is provided with that top communicates with sample, bottom and extraneous drainage pore and the seepage pressure interface communicating; Seepage pressure interface is connected with seepage pressure water pot; Drainage pore is connected with drainage tracheae; The side of described specimen mount is provided with ambient pressure interface, is connected to static pressure switch board by pressure line, when test, permeates dissolved corrosion test by static pressure cabinet pressure regulation pressure regulating valve.
2. flexible barrier material infiltration dissolved corrosion test device as claimed in claim 1, is characterized in that: described infiltration corrosion pressure chamber comprises pressure chamber's stationary installation and pressure chamber's outer cover; Described pressure chamber's stationary installation comprises pressure chamber's base, triangular supports and column, between described pressure chamber's outer cover and pressure chamber's base, is connected by an abutment ring, and abutment ring is provided with a handles; Outer cover top, pressure chamber and an end cap are threaded connection; In described pressure chamber's outer cover, be provided with a triangular supports, described support is connected with pressure chamber's base by column, and support is provided with and the circular hole of sample same diameter, and tolerable sample upper cover is through carriage center, and regulates highly by screw thread rotation.
3. flexible barrier material infiltration dissolved corrosion test device as claimed in claim 1, it is characterized in that: described static pressure switch board device, comprise two pressure regulator valves and two precision pressure gauges, be arranged on respectively on the panel of switch board, form a set of complete static pressure control system; Pneumatic supply is respectively seepage water pressure tank by two-way valve and pressure chamber's confined pressure provides pressure.
4. flexible barrier material infiltration dissolved corrosion test device as claimed in claim 3, it is characterized in that: described pneumatic supply is exerted pressure to seepage pressure water pot by seepage pressure valve, air pressure is connected with seepage pressure interface after being converted to hydraulic pressure, realizes the seepage water pressure of dissolved corrosion test; Described pneumatic supply applies ambient pressure by ambient pressure pressure regulator valve to described inside, pressure chamber, and this pressure should be greater than the seepage water pressure of sample, prevents that sidewall is around oozing.
5. flexible barrier material infiltration dissolved corrosion test device as claimed in claim 1, is characterized in that: in described rotation, cover and be provided with a coupled handle.
6. flexible barrier material infiltration dissolved corrosion test device as claimed in claim 1, is characterized in that: be equipped with permeable stone at described sample rotation upper cover bottom, specimen mount top, described sample is placed between two permeable stones.
7. flexible barrier material infiltration dissolved corrosion test device as claimed in claim 1, is characterized in that: described infiltration corrosion pressure chamber's adapter and water inlet, water outlet, osculum connecting pipe are equipped with check valve door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420433787.6U CN204008400U (en) | 2014-08-01 | 2014-08-01 | A kind of flexible barrier material infiltration dissolved corrosion test device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420433787.6U CN204008400U (en) | 2014-08-01 | 2014-08-01 | A kind of flexible barrier material infiltration dissolved corrosion test device |
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| CN204008400U true CN204008400U (en) | 2014-12-10 |
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| CN201420433787.6U Expired - Fee Related CN204008400U (en) | 2014-08-01 | 2014-08-01 | A kind of flexible barrier material infiltration dissolved corrosion test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108088757A (en) * | 2018-02-02 | 2018-05-29 | 中国矿业大学 | The three-axis force experimental rig and method of a kind of simulated high-pressure water congeals into ice process |
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2014
- 2014-08-01 CN CN201420433787.6U patent/CN204008400U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108088757A (en) * | 2018-02-02 | 2018-05-29 | 中国矿业大学 | The three-axis force experimental rig and method of a kind of simulated high-pressure water congeals into ice process |
| CN108088757B (en) * | 2018-02-02 | 2019-02-19 | 中国矿业大学 | The three-axis force experimental rig and method of a kind of simulated high-pressure water congeals into ice process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20170801 |
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| CF01 | Termination of patent right due to non-payment of annual fee |