CN207123347U - A kind of flexible fluid injection probe unit - Google Patents
A kind of flexible fluid injection probe unit Download PDFInfo
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- CN207123347U CN207123347U CN201721153827.1U CN201721153827U CN207123347U CN 207123347 U CN207123347 U CN 207123347U CN 201721153827 U CN201721153827 U CN 201721153827U CN 207123347 U CN207123347 U CN 207123347U
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- flexible
- pressure
- fluid injection
- pressure responsive
- probe unit
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Abstract
The utility model discloses a kind of flexible fluid injection probe unit, it is connected including at least one flexible pressure responsive device, priming device, conveying device, pressure tester, the priming device with conveying device, the conveying device also detachably connects with flexible pressure responsive device, and the pressure tester connects with conveying device or flexible pressure responsive device.The utility model flexible fluid injection probe unit can be fully bonded with the wall of a borehole, so it sensitive can perceive surrouding rock stress change, stress position triaxiality, the trend of convenient analysis supporting pressure change and the position of pressure spikes are able to detect that simultaneously, are the safety in production service in colliery.
Description
Technical field
The present invention relates to flexible pressure sensor device technical field, more particularly to a kind of flexible fluid injection probe unit.
Background technology
The dynamic change of surrouding rock stress is the reason for triggering all kinds of geological disasters, and the monitoring to surrouding rock stress change at present is set
It is for the predominantly rigid device such as borehole stressmeter, its shortcoming：1. can not be fully bonded with the wall of a borehole, thus can not sensitively feel
Know the change of surrouding rock stress；2. the surrouding rock stress change of fixed-direction can only be monitored, due to surrouding rock stress position triaxiality, therefore
Rigid device can not fully reflect the situation of change of surrouding rock stress.Therefore existing equipment accurately and timely can not comprehensively reflect country rock
Stress variation situation, causes to grasp country rock rule not accurate enough, leaves hidden danger for geological disaster.Find out branch bearing capacity
The rule of change has great importance for Safety of Coal Mine Production, understands scope and pressure height that lead abutment pressure influences
The position at peak, for determining that all aspects of the parameters of advance support play reference function.Meanwhile according to tunnel entity coal side branch pressure-bearing
The change of power, subsequent work face is selected reasonably to send the lane time and send lane position all critically important.
The content of the invention
The first object of the present invention be mainly solve prior art in the presence of sensitivity it is low, multiaxial stress can not be monitored
The technical problem of change, so as to provide a kind of flexible fluid injection probe unit, the flexible fluid injection probe unit can fill with the wall of a borehole
Divide fitting, so surrouding rock stress change sensitive can be perceived, while be able to detect that stress position triaxiality.
The second object of the present invention is to provide for a kind of detection method of above-mentioned flexible fluid injection probe unit.
In order to realize the first object of the present invention, the technical solution adopted in the present invention is as follows：
A kind of flexible fluid injection probe unit, for sensing surrouding rock stress change, including with lower component：
At least one flexible pressure responsive device, it is cylindrical structure, for being fitted into the drilling in country rock, sensing loads injection breast
The pressure in country rock is sensed after change liquid；
Priming device, for injecting emulsion into flexible pressure responsive device；
Conveying device, for emulsion to be delivered in flexible pressure responsive device from priming device；
Pressure tester, for showing the pressure of emulsion in conveying device or flexible pressure responsive device；
The priming device is connected with conveying device, and the conveying device also detachably connects with flexible pressure responsive device, institute
Pressure tester is stated to connect with conveying device or flexible pressure responsive device.
Further, the flexible pressure responsive device includes body, sealant, rubber layer, joint, and the sealant is arranged on
The body outer layer, the rubber layer are arranged on outside the sealant, and the joint is arranged on described body one end, the pipe
The body other end is closed.
Further, the rubber layer is worked out by high polymer material rubber and steel wire pressing.
Further, liquid injection hole is provided with the middle part of the joint, the joint side is provided with steam vent, the liquid injection hole
Connected with steam vent with the inner chamber of body.
Further, the priming device includes pump, flowmeter, fluid injection gun, the pump, fluid injection gun, flowmeter, conveying dress
Put and be sequentially connected, the conveying device is rubber tube.
Further, the pressure tester includes pressure gauge and triple valve, and the triple valve is arranged on the rubber tube,
And the pressure gauge also connects with the triple valve.
In order to realize the second object of the present invention, the technical solution adopted in the present invention is as follows：
A kind of detection method of above-mentioned flexible fluid injection probe unit, comprises the following steps：
S1, at least one set of drilling is bored on country rock；
S2, a certain amount of emulsion emptying air is injected into each flexible pressure responsive device；
S3, rubber tube are connected with flexible pressure responsive device, then load a flexible pressure responsive device in each foot of hole；
S4, with pump first time fluid injection is carried out into each flexible pressure responsive device successively, after fluid injection to the first preset pressure,
Until pressure stability and flowmeter do not change, fluid injection in a flexible pressure responsive device still further below；
S5, with pump second of fluid injection is carried out into flexible pressure responsive device successively, until pressure reaches the second preset pressure；
Pressure value in each flexible pressure responsive device of S6, at the appointed time record, analysis support pressure change become
The position of gesture and pressure spikes.
Further, in the step S1, drilling is needed apart from tunnel bottom 0.5m, vertical rib, parallel to coal seam drilling
Hole, the diameter of drilling are greater than 48mm.
Further, in the step S4, the first preset pressure is 1.5MPa-2.0Mpa, the second default pressure in step S5
Power is 5MPa.
When detecting surrouding rock stress, multiple drillings are usually opened up on country rock, flexible pressure-sensitive is respectively mounted in each drilling
Device, detect the stress at diverse location on country rock.This patent is by setting the flexible pressure responsive device of cylindrical structure, pressure-sensitive dress
Put in the drilling that may be mounted at country rock, be then charged into after the emulsion of predetermined pressure, flexible pressure responsive device can be with brill
Hole inwall fitting, drill hole inner wall can be conducted to flexible pressure responsive device surface by the stress of any direction, pass through pressure tester
The pressure can for detecting emulsion in flexible pressure responsive device identifies the stress being subject in wall rock drill-hole.Priming device and conveying
Device is for injecting emulsion into flexible pressure responsive device.
Compared with prior art, the advantage of the invention is that：The flexible fluid injection probe unit can fully paste with the wall of a borehole
Close, so surrouding rock stress change sensitive can be perceived, while be able to detect that stress position triaxiality, it is convenient to analyze branch bearing capacity
The trend of change and the position of pressure spikes, it is the safety in production service in colliery.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the flexible fluid injection probe unit of the present invention；
Fig. 2 is the structural representation of flexible pressure responsive device in the present invention；
Fig. 3 is the method schematic of the flexible fluid injection probe unit detection method of the present invention.
Embodiment
The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, apparent is clearly defined so as to be made to protection scope of the present invention.
As shown in fig.1, a kind of flexible fluid injection probe unit provided by the invention, for sensing surrouding rock stress change, bag
Include with lower component：
At least one flexible pressure responsive device 1, it is cylindrical structure, for being fitted into the drilling in country rock, sensing loads injection
The pressure in country rock is sensed after emulsion；Multiple flexible induction installations 1 can detect answering in diverse location drilling on country rock
Power.
Priming device 2, for injecting emulsion into flexible pressure responsive device；
Conveying device 3, for emulsion to be delivered in flexible pressure responsive device from priming device；Connect each device.
Pressure tester 4, for showing the pressure of emulsion in conveying device or flexible pressure responsive device；
The priming device 2 is connected with conveying device 3, and the conveying device 3 also detachably connects with flexible pressure responsive device 1
Logical, the pressure tester 4 connects with conveying device 3 or flexible pressure responsive device 1.
When detecting surrouding rock stress, multiple drillings 6 are usually opened up on country rock 5, flexible sense is respectively mounted in each drilling 6
Pressure device 1, detect the stress at diverse location on country rock 5.By setting the flexible pressure responsive device 1 of cylindrical structure, pressure-sensitive dress
Put in the drilling 6 that may be mounted at country rock 5, be then charged into after the emulsion of predetermined pressure, flexible pressure responsive device 1 can be with
6 hole inwall fittings are bored, 6 inwalls of drilling can be conducted to the flexible surface of pressure responsive device 1 by the stress of any direction, pass through pressure measurement
The pressure can that device 4 detects emulsion in flexible pressure responsive device 1 identifies the stress being subject in wall rock drill-hole 6.Fluid injection fills
Put 2 and conveying device 3 be for injecting emulsion into flexible pressure responsive device.And conveying device 3 and flexible pressure responsive device 1
Dismountable connection, when being detected, only need to configure a set of priming device 2 can note to multiple flexible pressure responsive devices 1
Liquid.So the flexible fluid injection probe unit can be fully bonded with the wall of a borehole, so surrouding rock stress change sensitive can be perceived,
Stress position triaxiality, the trend of convenient analysis supporting pressure change and the position of pressure spikes are able to detect that simultaneously, are coal
The safety in production service of ore deposit.
As shown in fig.2, the flexible pressure responsive device 1 includes body 11, sealant 12, rubber layer 13, joint 14, it is described
Sealant 12 is arranged on the body outer layer 11, and the rubber layer 13 is arranged on outside the sealant 12, and the joint 14 is pacified
Mounted in described one end of body 11, the other end of body 11 closing.Preferably, body 1 can use seamless steel pipe, seamless steel pipe
Surface covers one layer of caulking gum material and forms hollow structure, i.e., the hollow structure formed between steel pipe and rubber layer, the sealing
Elastomeric material is as sealant 12, and wherein hollow structure is used for filling flexible high polymer material, and rubber layer 13 is by macromolecule material
Material rubber is worked out with steel wire pressing, and the both ends of body 11 can use clip clamping.Breast of the injection with pressure in body 11
When changing liquid, rubber layer 13 is in close contact with 6 inner wall surfaces of drilling, and when having stress in drilling 6, stress is transferred to rubber layer 13
Surface, cause the pressure change in body 11.Bubble, the joint 14 are left during in order to prevent fluid injection in flexibility pressure responsive device 1
Middle part is provided with liquid injection hole 141, and the side of joint 14 is provided with steam vent 142, and the liquid injection hole 141 and steam vent 142 are equal
Connected with the inner chamber of body 11.During fluid injection, gas can send in steam vent 142 and flow back.
Specifically, the priming device 2 includes pump 21, flowmeter 22, fluid injection gun 23, the pump 21, fluid injection gun 23, flow
Meter 22, conveying device 3 are sequentially connected, and the conveying device 3 is rubber tube.A pressure can also be included in the priming device 2
Table, the emulsion pressure exported for checking fluid injection gun 23.
The pressure tester 4 includes pressure gauge 41 and triple valve 42, and the triple valve 42 is arranged on the rubber tube, and
The pressure gauge 41 also connects with the triple valve 42.Triple valve 42 is connected by sealing ring with rubber tube or pressure gauge 41, is prevented
Leak-stopping liquid.The side of the inlet of triple valve 42 is provided with check valve, for preventing emulsion from flowing back.
In order to realize the second object of the present invention, the technical solution adopted in the present invention is as follows：
As shown in fig.3, a kind of detection method of above-mentioned flexible fluid injection probe unit, comprises the following steps：
S1, at least one set of drilling is bored on country rock；The drilling is usually vertical rib, parallel to one group of brill of coal seam construction
Hole.
S2, a certain amount of emulsion emptying air is injected into each flexible pressure responsive device；The emulsion typically adds
500ml, but the amount of emulsion can be adjusted according to the size of flexible pressure responsive device.
S3, rubber tube are connected with flexible pressure responsive device, then load a flexible pressure responsive device in each foot of hole；Can
So that flexible pressure responsive device is disclosed to the bottom of drilling 6 by anchor cable.
S4, with pump first time fluid injection is carried out into each flexible pressure responsive device successively, after fluid injection to the first preset pressure,
Until pressure stability and flowmeter do not change, fluid injection in a flexible pressure responsive device still further below；Wherein pressure tester 4 can be with
It is connected to by flexible pipe on flexible pressure responsive device, checks at any time and read the pressure on flexible pressure responsive device 1, and priming device 2
On a pressure gauge can be installed again in addition.
S5, with pump second of fluid injection is carried out into flexible pressure responsive device successively, until pressure reaches the second preset pressure；The
One preset pressure is less than the second preset pressure, and by repeatedly being pressurizeed to flexible pressure responsive device, the pressure finally measured is accurate
Property it is high, and pressure is relatively stable.
Pressure value in each flexible pressure responsive device of S6, at the appointed time record, analysis support pressure change become
The position of gesture and pressure spikes.
In the present embodiment, in the step S1, drilling is needed apart from tunnel bottom 0.5m, vertical rib, parallel to coal
Layer drilling, the diameter of drilling is greater than 48mm, and 6 deep of drilling needs to be determined according to actual conditions, and usually depth is 5m,
8m,11m,14m,17m.Preferably, in the step S4, the first preset pressure is 1.5MPa-2.0Mpa, and second is pre- in step S5
If pressure is 5MPa.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
The change or replacement expected without creative work, it should all be included within the scope of the present invention.Therefore, it is of the invention
Protection domain should be determined by the scope of protection defined in the claims.
Claims (6)
- A kind of 1. flexible fluid injection probe unit, for sensing surrouding rock stress change, it is characterised in that including with lower component：At least one flexible pressure responsive device, it is cylindrical structure, for being fitted into the drilling in country rock, sensing loads injection emulsion Pressure in sensing country rock later；Priming device, for injecting emulsion into flexible pressure responsive device；Conveying device, for emulsion to be delivered in flexible pressure responsive device from priming device；Pressure tester, for showing the pressure of emulsion in conveying device or flexible pressure responsive device；The priming device is connected with conveying device, and the conveying device also detachably connects with flexible pressure responsive device, the survey Pressure device connects with conveying device or flexible pressure responsive device.
- 2. flexible fluid injection probe unit according to claim 1, it is characterised in that：The flexible pressure responsive device includes pipe Body, sealant, rubber layer, joint, the sealant are arranged on the body outer layer, and the rubber layer is arranged on the sealant Outside, the joint are arranged on described body one end, the body other end closing.
- 3. flexible fluid injection probe unit according to claim 2, it is characterised in that：The rubber layer is by high polymer material rubber Glue is worked out with steel wire pressing.
- 4. flexible fluid injection probe unit according to claim 2, it is characterised in that：Fluid injection is provided with the middle part of the joint Hole, the joint side are provided with steam vent, and the liquid injection hole and steam vent connect with the inner chamber of body.
- 5. flexible fluid injection probe unit according to claim 2, it is characterised in that：The priming device includes pump, flow Meter, fluid injection gun, the pump, fluid injection gun, flowmeter, conveying device are sequentially connected, and the conveying device is rubber tube.
- 6. flexible fluid injection probe unit according to claim 5, it is characterised in that：The pressure tester include pressure gauge and Triple valve, the triple valve is arranged on the rubber tube, and the pressure gauge also connects with the triple valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721153827.1U CN207123347U (en) | 2017-09-11 | 2017-09-11 | A kind of flexible fluid injection probe unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721153827.1U CN207123347U (en) | 2017-09-11 | 2017-09-11 | A kind of flexible fluid injection probe unit |
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| Publication Number | Publication Date |
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| CN207123347U true CN207123347U (en) | 2018-03-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107402085A (en) * | 2017-09-11 | 2017-11-28 | 山东科大中天安控科技有限公司 | A kind of flexible fluid injection probe unit and detection method |
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2017
- 2017-09-11 CN CN201721153827.1U patent/CN207123347U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107402085A (en) * | 2017-09-11 | 2017-11-28 | 山东科大中天安控科技有限公司 | A kind of flexible fluid injection probe unit and detection method |
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