CN2158083Y - Permeability detecting meter - Google Patents
Permeability detecting meter Download PDFInfo
- Publication number
- CN2158083Y CN2158083Y CN 93211321 CN93211321U CN2158083Y CN 2158083 Y CN2158083 Y CN 2158083Y CN 93211321 CN93211321 CN 93211321 CN 93211321 U CN93211321 U CN 93211321U CN 2158083 Y CN2158083 Y CN 2158083Y
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- CN
- China
- Prior art keywords
- piston
- vertical tube
- permeability
- probe
- water level
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model relates to a fast permeability detecting device for ore yards, characterized in that one waney vertical tube is arranged, the lower end of the vertical tube is inserted in a pool whose water lever is constant, and the upper end and a return pump and a probe are mutually connect via a hose. The tube diameter of the vertical tube is gradually reduced from bottom to top. On each section of the tube diameter, two water level measuring points are arranged, and the water level measuring points and a data acquisition part are mutually connected. As long as the time of the water level passing through the two water level measuring points is detected, the value of the permeability of a rock which is to be detected can be quickly detected, and accordingly, the purpose of the utility model can be realized.
Description
The utility model relates to a kind of device of measuring rock and porous media material permeability thereof.
In the geologic prospecting work in the open air, often need to measure the hole permeability of rock.In order to measure permeability of rock, the conventional way in the field geological work is the sample that drills through rock from each tested point, transports the indoor core of making then back, can record permeability of rock after treatment.The method of this mensuration rock permeability, link is many, and is time-consuming many, and therefore the expense height brings a lot of difficulties to field geological work.
Task of the present utility model provides a kind of mining site rapid osmotic rate determinator, and it is little, easy and simple to handle to make it to have volume, does not need boring sample, characteristics that can fast-field evaluation permeability of rock value.
The purpose of this utility model can reach by following measure: in the structure of permeability detector, be provided with a waney vertical tube, insert in the pond of a constant water level lower end of vertical tube, upper end and return pump be connected with probe by flexible pipe.
The purpose of this utility model can also reach by following measure: vertical tube from top to bottom, caliber reduces successively.On each caliber section, be provided with two level measuring points, level measuring point is connected with part of data acquisition.Be provided with a piston in probe, a circular channel is arranged in the piston, the lower end that an end of passage is positioned at piston communicates with the external world, and the other end of passage is positioned at the side of piston, also has a passway at the shell of probe and the corresponding side of lateral access mouth of piston.
Permeability tester described in the utility model, its advantage are that volume is little, and be easy and simple to handle, do not need boring sample, and energy fast-field evaluation permeability of rock value is suitable for field work.
Fig. 1 is a general structure synoptic diagram of the present utility model.
Fig. 2 is the structural representation of the utility model probe segment.
Below in conjunction with accompanying drawing the utility model is further described: in Fig. 1, the lower end of vertical tube (5) is arranged in the pond (6) of constant water level, vertical tube from top to bottom, caliber reduces successively.On each caliber section, be provided with two level measuring points (4), when return pump (1) vacuumizes in vertical tube, because the pressure of pipe internal upper part is less than atmospheric pressure, water in the pond rises along vertical tube, the height that water level rises is relevant with the difference that the upper pressure of pipe is lower than atmospheric pressure, and difference is big more, and water level is high more.When measuring permeability of rock, to pop one's head in (7) be positioned at rock to be measured (8) above, make the pressure of atmosphere enter probe through blowhole, pass through the top that flexible pipe (2) enters vertical tube again, its inner vacuum tightness is reduced, decline of water table, the speed of decline of water table is relevant with the survey permeability of rock.When water level is reduced to a certain caliber section, can record time through 2 level measuring points, with the measured time after part of data acquisition (3) is calculated, can obtain the permeability of rock value.
In Fig. 2, the shell of probe (14) is a cylinder barrel shaped, and piston (12) is positioned at tube.The lower end of piston is embedded with a rubber seal (9), also is provided with two seals circle (10), (11) between the sliding interface of piston and shell.One end of the circular channel (15) in the piston is positioned at the lower end of piston, and is positioned at rubber seal (9) and communicates with the external world, and the other end of passage is positioned at the side of piston, and is positioned between two seals circle (10), (11).On the shell of probe, also have a passway with the corresponding side of the lateral access mouth of piston.Probe is not when working, because the effect of spring (13), piston is to moving down, the passway of piston side is misplaced mutually with the passway of shell, again because the effect of O-ring seal (10), (11), make extraneous air not enter in the flexible pipe, thereby vertical tube is not communicated with the external world through piston channel.And when measuring rock permeability, probe is positioned on the surface of rock (8), firmly to pressing down probe, piston moves up, thereby passway, piston side is communicated with the outer shell passage mouth, because the effect of O-ring seal (10), (11) and O-ring seal (9) just can enter in the vertical tube air that has only through rock (8) hole, so just can record permeability of rock again.
Claims (7)
1, a kind of permeability detector of being formed by return pump (1), vertical tube (5), probe (7), it is characterized in that vertical tube (5) is a waney vertical tube, insert in the pond (6) of a constant water level its lower end, upper end and return pump be connected with probe by flexible pipe (2).
2, permeability detector according to claim 1 is characterized in that vertical tube from top to bottom, and caliber reduces successively.
3, permeability detector according to claim 2 is characterized in that being provided with two level measuring points (4) on each caliber section of vertical tube, and level measuring point is connected with part of data acquisition (3).
4,, it is characterized in that in probe (7), being provided with a piston (12) according to claim 1,2,3 described permeability detectors.
5, permeability detector according to claim 4 is characterized in that being provided with a circular channel (15) in piston (12), and the lower end that an end of passage is positioned at piston communicates with the external world, and the other end is positioned at the side of piston.
6, permeability detector according to claim 5 is characterized in that upward and with the corresponding side of the lateral access mouth of piston body also having a passway at the shell (14) of probe.
7, permeability detector according to claim 6 is characterized in that being embedded with a rubber seal (9) in the lower end of piston, also is provided with two seals circle (10), (11) between the sliding interface of piston and shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93211321 CN2158083Y (en) | 1993-04-27 | 1993-04-27 | Permeability detecting meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93211321 CN2158083Y (en) | 1993-04-27 | 1993-04-27 | Permeability detecting meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2158083Y true CN2158083Y (en) | 1994-03-02 |
Family
ID=33792981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93211321 Expired - Fee Related CN2158083Y (en) | 1993-04-27 | 1993-04-27 | Permeability detecting meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2158083Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101221111B (en) * | 2007-01-12 | 2010-12-22 | 中国石油大学(北京) | Testing method and device for anisotropic permeability |
| CN103808635A (en) * | 2014-01-20 | 2014-05-21 | 浙江大学 | Device and method for measuring water diffusion rate in porous medium |
| US10053985B1 (en) | 2017-03-24 | 2018-08-21 | China University Of Mining & Technology-Beijing | Real-time water-level monitoring system for dumping site of open-pit coal mine, and methods of establishment and use of the same |
-
1993
- 1993-04-27 CN CN 93211321 patent/CN2158083Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101221111B (en) * | 2007-01-12 | 2010-12-22 | 中国石油大学(北京) | Testing method and device for anisotropic permeability |
| CN103808635A (en) * | 2014-01-20 | 2014-05-21 | 浙江大学 | Device and method for measuring water diffusion rate in porous medium |
| CN103808635B (en) * | 2014-01-20 | 2014-12-10 | 浙江大学 | Device and method for measuring water diffusion rate in porous medium |
| US10053985B1 (en) | 2017-03-24 | 2018-08-21 | China University Of Mining & Technology-Beijing | Real-time water-level monitoring system for dumping site of open-pit coal mine, and methods of establishment and use of the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |