CN205067278U - Axial loading permeability test device - Google Patents
Axial loading permeability test device Download PDFInfo
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- CN205067278U CN205067278U CN201520830304.0U CN201520830304U CN205067278U CN 205067278 U CN205067278 U CN 205067278U CN 201520830304 U CN201520830304 U CN 201520830304U CN 205067278 U CN205067278 U CN 205067278U
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- valve
- hydraulic cylinder
- axial loading
- action hydraulic
- nonoculture
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Abstract
(B, ) the utility model discloses an axial loading permeability test device including the mount, locates infiltration appearance on the mount, and locate the pneumatic cylinder for the nonoculture of infiltration appearance bottom, and drive the loaded axial loading system of pneumatic cylinder displacement for the nonoculture, the axial loading system include with the confession oil pipe way of pneumatic cylinder lower part intercommunication for the nonoculture, and with supply the variable piston pump of oil pipe way intercommunication, be equipped with stop valve, switching -over valve and choke valve on the confession oil pipe way between pneumatic cylinder for the nonoculture and variable piston pump in proper order, the utility model has the advantages of, simple structure not only, utilize in addition axial loading system control for the nonoculture pneumatic cylinder realize the displacement load, when making broken rock specimen take place the compressing deformation, effectively guarantee rock specimen both ends pressure stability to improve the stability of rock specimen permeability parameter. (B, )
Description
Technical field
the utility model relates to a kind of infiltration experiment device, is specifically related to one and axially loads infiltration experiment device.
Background technology
genesis of Karst Subsided Column extensive development in North China type coalfield Permo-carboniferous period stratum.In progress of coal mining, once karst collapse col umn is disclosed, usually there is water bursting disaster, cause the Loss of Life and property that colliery is huge.At present in broken rock sample process of osmosis, in rock sample hole, hydraulic pressure can not balance voluntarily, need to apply axial load at rock sample two ends, but in existing fractured rock infiltration experiment device, because pressure controling precision is not high enough, the pressure transient at rock sample two ends, build-up of pressure fluctuation has an impact to rock sample perviousness parameter.
Summary of the invention
the utility model object is: not only structure is simple to provide one, and ensures the axis loading infiltration experiment device that rock sample pressure at two ends is stable.
the technical solution of the utility model is: one axially loads infiltration experiment device, comprise fixed mount, be located at the permeameter on described fixed mount, and be located at the single-action hydraulic cylinder bottom described permeameter, and the axial loading system driving described single-action hydraulic cylinder displacement to load; Described axial loading system comprises the oil feed line be communicated with described single-action hydraulic cylinder bottom, and the Variable plunger pump be communicated with described oil feed line; Oil feed line between single-action hydraulic cylinder and Variable plunger pump is provided with stop valve, reversal valve and throttling valve successively.
as preferred technical scheme, described fixed mount and described single-action hydraulic cylinder are respectively equipped with the cross tube and sheer pole that be arranged in parallel, between described cross tube and described sheer pole, are vertically provided with a displacement transducer.
as preferred technical scheme, the oil feed line between described reversal valve and described throttling valve is provided with overflow passage, described overflow passage is provided with tensimeter and surplus valve.
as preferred technical scheme, the oil feed line between described single-action hydraulic cylinder and stop valve is provided with pressure unit.
as preferred technical scheme, described fixed mount is provided with crossbeam, bottom described crossbeam, is positioned at above described permeameter and is provided with spherical indenter.
as preferred technical scheme, described reversal valve is three position four-way directional control valve.
concrete control method of the present utility model is as follows: displacement is converted to voltage signal by displacement transducer by the axial compression amount of broken rock sample, and voltage signal is shown in real time by recording instrument without paper and stores.Open stop valve, the spool of reversal valve is placed in oil-feed position, the piston rod that oil pressure promotes single-action hydraulic cylinder moves up, and when displacement reaches preset value, is changed to meta by the spool of reversal valve and is closed by stop valve, realize rock sample deflection constant by oil-feed position; The spool of reversal valve is placed in oil return position and opens stop valve, then, under the effect of gravity and spring restoring force, the piston rod of single-action hydraulic cylinder moves down, and rock sample is unloaded.
the utility model has the advantages that:
1. not only structure is simple for the utility model, and utilizes axial loading system control single-action hydraulic cylinder to realize displacement loading, while making broken rock sample generation compression deformation, effectively ensures that rock sample pressure at two ends is stablized, and improves the stability of rock sample perviousness parameter.
Accompanying drawing explanation
below in conjunction with drawings and Examples, the utility model is further described:
fig. 1 is the utility model structural representation;
wherein: 1 fixed mount, 2 permeameters, 3 single-action hydraulic cylinders, 4 oil feed lines, 5 Variable plunger pumps, 6 stop valves, 7 reversal valves, 8 throttling valve, 9 cross tubes, 10 sheer poles, 11 displacement transducers, 12 overflow passages, 13 tensimeters, 14 surplus valves, 15 pressure units, 16 crossbeams, 17 spherical indenters.
Embodiment
embodiment: with reference to shown in Fig. 1, one axially loads infiltration experiment device, comprises fixed mount 1, is located at the permeameter 2 on fixed mount 1, and the single-action hydraulic cylinder 3 be located at bottom permeameter 2, and the axial loading system driving single-action hydraulic cylinder 3 displacement to load; Axial loading system comprises the oil feed line 4 be communicated with single-action hydraulic cylinder 3 bottom, and the Variable plunger pump 5 be communicated with oil feed line 4; Oil feed line 4 between single-action hydraulic cylinder 3 and Variable plunger pump 5 is provided with successively stop valve 6, this reversal valve 7 of reversal valve 7(is three position four-way directional control valve) and throttling valve 8.
the utility model is respectively equipped with the cross tube 9 and sheer pole 10 that be arranged in parallel on fixed mount 1 and single-action hydraulic cylinder 3, is vertically provided with a displacement transducer 11 between cross tube 9 and sheer pole 10.
the oil feed line 4 of the utility model between reversal valve 7 and throttling valve 8 is provided with overflow passage 12, overflow passage 12 is provided with tensimeter 13 and surplus valve 14, the oil feed line 3 simultaneously between single-action hydraulic cylinder 3 and stop valve 6 is provided with pressure unit 15.
the utility model is provided with crossbeam 16 on fixed mount 1, bottom crossbeam 16, is positioned at above permeameter 2 and is provided with spherical indenter 17.
concrete control method of the present utility model is as follows: displacement is converted to voltage signal by displacement transducer 11 by the axial compression amount of broken rock sample, and voltage signal is shown in real time by recording instrument without paper and stores.Open stop valve 6, the spool of reversal valve 7 is placed in oil-feed position, and the piston rod that oil pressure promotes single-action hydraulic cylinder 3 moves up, when displacement reaches preset value, the spool of reversal valve 7 changed to meta by oil-feed position and stop valve 6 is closed, realizing rock sample deflection constant; The spool of reversal valve 7 is placed in oil return position and opens stop valve 6, then, under the effect of gravity and spring restoring force, the piston rod of single-action hydraulic cylinder 3 moves down, and rock sample is unloaded.
above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (6)
1. an axis loads infiltration experiment device, comprise fixed mount (1), and the permeameter (2) be located on described fixed mount (1), it is characterized in that, also comprise the single-action hydraulic cylinder (3) being located at described permeameter (2) bottom, and the axial loading system driving described single-action hydraulic cylinder (3) displacement to load; Described axial loading system comprises the oil feed line (4) be communicated with described single-action hydraulic cylinder (3) bottom, and the Variable plunger pump (5) be communicated with described oil feed line (4); Oil feed line (4) between single-action hydraulic cylinder (3) and Variable plunger pump (5) is provided with successively stop valve (6), reversal valve (7) and throttling valve (8).
2. axis according to claim 1 loads infiltration experiment device, it is characterized in that, described fixed mount (1) and described single-action hydraulic cylinder (3) are respectively equipped with the cross tube (9) be arranged in parallel and sheer pole (10), between described cross tube (9) and described sheer pole (10), are vertically provided with a displacement transducer (11).
3. axis according to claim 1 loads infiltration experiment device, it is characterized in that, oil feed line (4) between described reversal valve (7) and described throttling valve (8) is provided with overflow passage (12), described overflow passage (12) is provided with tensimeter (13) and surplus valve (14).
4. axis according to claim 1 loads infiltration experiment device, it is characterized in that, the oil feed line (4) between described single-action hydraulic cylinder (3) and stop valve (6) is provided with pressure unit (15).
5. axis according to claim 1 loads infiltration experiment device, it is characterized in that, described fixed mount (1) is provided with crossbeam (16), described crossbeam (16) bottom, be positioned at described permeameter (2) top be provided with spherical indenter (17).
6. axis according to claim 1 loads infiltration experiment device, it is characterized in that, described reversal valve (7) is three position four-way directional control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520830304.0U CN205067278U (en) | 2015-10-23 | 2015-10-23 | Axial loading permeability test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520830304.0U CN205067278U (en) | 2015-10-23 | 2015-10-23 | Axial loading permeability test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205067278U true CN205067278U (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520830304.0U Expired - Fee Related CN205067278U (en) | 2015-10-23 | 2015-10-23 | Axial loading permeability test device |
Country Status (1)
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| CN (1) | CN205067278U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105628590A (en) * | 2016-04-01 | 2016-06-01 | 盐城工学院 | Water-sand two-phase seepage testing device for broken rock |
| CN105628589A (en) * | 2016-04-01 | 2016-06-01 | 盐城工学院 | Injector type crushed rock permeability test device capable of adding sand continuously |
| CN105675472A (en) * | 2016-04-01 | 2016-06-15 | 盐城工学院 | Pump station type broken rock seepage test device capable of feeding sand continuously |
| CN105758779A (en) * | 2016-04-01 | 2016-07-13 | 盐城工学院 | Broken rock permeability test device capable of continuously feeding sand in multiple ways |
| CN106525693A (en) * | 2016-12-27 | 2017-03-22 | 盐城工学院 | Hydraulic type penetration pressure loading device used for rock penetration test |
| CN106525694A (en) * | 2016-12-27 | 2017-03-22 | 盐城工学院 | Electromagnetic sensing type permeation pressure loading device for rock permeation test |
| CN107884291A (en) * | 2017-10-16 | 2018-04-06 | 太原理工大学 | A kind of rock axial direction sine and cosine adds unloading single axis test machines device |
| CN110685763A (en) * | 2019-10-24 | 2020-01-14 | 中国能源建设集团山西电力建设有限公司 | Universal tool for hydraulic test of low-pressure pipeline valve in thermal power plant |
-
2015
- 2015-10-23 CN CN201520830304.0U patent/CN205067278U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105628590B (en) * | 2016-04-01 | 2018-02-06 | 盐城工学院 | A kind of experimental rig for fractured rock water sand two phase fluid flow |
| CN105628589A (en) * | 2016-04-01 | 2016-06-01 | 盐城工学院 | Injector type crushed rock permeability test device capable of adding sand continuously |
| CN105675472A (en) * | 2016-04-01 | 2016-06-15 | 盐城工学院 | Pump station type broken rock seepage test device capable of feeding sand continuously |
| CN105758779A (en) * | 2016-04-01 | 2016-07-13 | 盐城工学院 | Broken rock permeability test device capable of continuously feeding sand in multiple ways |
| CN105628590A (en) * | 2016-04-01 | 2016-06-01 | 盐城工学院 | Water-sand two-phase seepage testing device for broken rock |
| CN105628589B (en) * | 2016-04-01 | 2018-02-06 | 盐城工学院 | A kind of sustainable plus sand syringe type fractured rock infiltration experiment device |
| CN105675472B (en) * | 2016-04-01 | 2018-02-06 | 盐城工学院 | A kind of sustainable plus sand pumping plant formula fractured rock infiltration experiment device |
| CN105758779B (en) * | 2016-04-01 | 2018-06-19 | 盐城工学院 | A kind of sustainable multipath adds the fractured rock infiltration experiment device of sand |
| CN106525693A (en) * | 2016-12-27 | 2017-03-22 | 盐城工学院 | Hydraulic type penetration pressure loading device used for rock penetration test |
| CN106525694A (en) * | 2016-12-27 | 2017-03-22 | 盐城工学院 | Electromagnetic sensing type permeation pressure loading device for rock permeation test |
| CN107884291A (en) * | 2017-10-16 | 2018-04-06 | 太原理工大学 | A kind of rock axial direction sine and cosine adds unloading single axis test machines device |
| CN107884291B (en) * | 2017-10-16 | 2020-12-11 | 太原理工大学 | Rock axial sine and cosine loading and unloading single-shaft testing machine device |
| CN110685763A (en) * | 2019-10-24 | 2020-01-14 | 中国能源建设集团山西电力建设有限公司 | Universal tool for hydraulic test of low-pressure pipeline valve in thermal power plant |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20161023 |