CN207229060U - A kind of rock body quality of mine drilling gas blocks extraction Intergration system - Google Patents
A kind of rock body quality of mine drilling gas blocks extraction Intergration system Download PDFInfo
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- CN207229060U CN207229060U CN201721323516.5U CN201721323516U CN207229060U CN 207229060 U CN207229060 U CN 207229060U CN 201721323516 U CN201721323516 U CN 201721323516U CN 207229060 U CN207229060 U CN 207229060U
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Abstract
The utility model discloses a kind of rock body quality of mine drilling gas to block extraction Intergration system, it solves the problems, such as that envelope effect is poor, extraction is of high cost, double-plugging effect is poor in rock body quality of mine drilling in the prior art, has the stability for improving closure process and gas pumping process, the effect for strengthening sealing performance；Its technical solution is：Side leakage valve is connected with including conehead, II types closure unit and two I types closure units, the afterbody of the II types closure unit；The II types closure unit is arranged between two I types closure units, its stem connects an I types closure unit by collection tube and forms collection cavity with drill hole inner wall, its afterbody is by connecting another I types closure unit communicating pipe and forming sealing cavity with drill hole inner wall；I types closure unit arranged on II types closure unit header is connected with conehead；Plugging material plays swollen I types closure unit and II types by being connected communicating pipe and blocks unit and sealing cavity at the same time, realizes triple closure.
Description
Technical field
The utility model belongs to rock body quality of mine hole pumping and mining technical field, and in particular to a kind of rock body quality of mine drilling gas envelope
Stifled extraction Intergration system.
Background technology
Gas pressure and gas bearing capacity are the important parameters for indicating coal-bed gas occurrence status.In research mine coal and gas
When protrusion, Gas, gas drainage under suction, it is a critical underlying parameter, thus for research coal-bed gas preservation and
The rule gushed out, it is necessary to carry out the measure of coal-bed gas pressure and gas bearing capacity.According to coal industry standard relevant regulations, survey
Pressure drill site should be selected in the tunnel of adjacent coal seam, should generally select to stamp capable drilling in complete hard coal petrography.
Traditional borehole sealing mode is that concrete filling material is filled into drilling, installs baffle in the borehole to be formed
Sealing space, and filler is irrigated into sealing space by single pipeline.Medium is blocked in above-mentioned closure mode to adopt more
With solid dielectric, after solid dielectric cures, easily cause rock mass crack phenomenon or solid material can not be to the wall of a borehole of correspondent section
Surrounding rock body crack is sealed；And traditional gas drainage system is only capable of forming dual-plugging, to the sealing effect of drilling compared with
Difference.Traditional gas drainage system is mostly expendable consumed product, cannot generally be reused, and improves gas pumping cost, no
Gas can effectively be collected.
It can be seen from the above that existing issue is up for further solving.
Utility model content
For overcome the deficiencies in the prior art, the utility model provides a kind of rock body quality of mine drilling gas closure extraction one
Body formula system, improves the stability of closure process and gas pumping process；Using flexible media at the same time rise it is swollen closure unit and
Sealing cavity, realizes triple closure, further ensures borehole sealing effect.
The utility model uses following technical proposals：
The utility model provides a kind of rock body quality of mine drilling gas closure test probe, including conehead, II types closure list
Member and two I types block unit, and the afterbody of the II types closure unit is connected with side leakage valve；The II types closure unit is arranged on two
Between a I types closure unit, its stem connects an I types closure unit by collection tube and is gathered with drill hole inner wall formation empty
Chamber, its afterbody is by connecting another I types closure unit communicating pipe and forming sealing cavity with drill hole inner wall；Blocked arranged on II types single
The I types closure unit of first stem is connected with conehead；Plugging material plays the swollen I types by being connected communicating pipe and blocks unit and II at the same time
Type blocks unit and sealing cavity, realizes triple closure.
Further, I types closure unit includes I-tube straight coupling, the first closure capsule and the 4th switch, and described the
Four switches are coated on the outside of I-tube straight coupling, the I arranged on the circumferential side of I-tube straight coupling, the first closure capsule
The passage being internally provided with for accommodating plugging material of type tubular configured joint.
Further, the both ends of the I-tube straight coupling are equipped with lug boss, and groove is formed between the lug boss, described
The side of groove be equipped be used for the 4th switch through through hole.
4th switch includes block and the first spring, and one end of the block is connect by the first spring and I-tube shape
The inner wall of head is connected, and the other end of the block is arranged on the outside of I-tube straight coupling.
Further, the block is in T-Type structure, and the inner side of the block is equipped with block external member, the block external member
It is fixed on the outside of through hole and both sides and is equipped with the first aperture.
In a free state, the block blocks the first aperture to first spring；First spring under compression, block
Upspring, the passage is connected by the first aperture with the first closure capsule with the cavity between I-tube straight coupling.
Further, the II types closure unit includes II types tubular configured joint, the second closure capsule and the 5th switch, described
5th switch is coated on the outside of II type tubular configured joints arranged on the circumferential side of II type tubular configured joints, the second closure capsule,
The passage being internally provided with for accommodating plugging material of the II types tubular configured joint.
Further, one end of the II types tubular configured joint is equipped with concave part, and the other end is equipped with lug boss, the concave part
Groove is formed between lug boss, the side of the groove is equipped with through hole.
Further, the side leakage valve includes basal body pipe, ball, second spring and adjusting nut, in described matrix pipe
Second orifice is equipped with along axisymmetrical on rear side of portion, ball, the rear side of the ball and second are equipped with the second orifice
The end thereof contacts of spring, the other end of the second spring are contacted with adjusting nut.
Further, the collection tube is equipped with some 3rd apertures, is oppositely arranged in the 3rd aperture equipped with two
One-way sealing strip of paper used for sealing；The opening towards collection inside pipe wall is formed between two one-way sealing strip of paper used for sealings, gas enters through one-way sealing strip of paper used for sealing
In collection tube, one-way sealing strip of paper used for sealing prevents plugging material from directly entering by the 3rd aperture in drilling.
The utility model additionally provides a kind of rock body quality of mine drilling gas closure extraction system, including propulsion system, supply
System and test probe, the afterbody of the propulsion system connecting test probe, designated position in drilling is advanced into by test probe；
The feed system provides the plugging material of setting pressure into test probe.
Further, the propulsion system includes drilling rod and drilling machine, the afterbody of the drilling rod connecting test probe；The confession
To system be equipped with supply operation console, it is described supply operation console be equipped be sequentially connected first switch, pressure gauge, flowmeter,
Second switch, the second switch are connected by hose with drilling rod.
Compared with prior art, the beneficial effects of the utility model are：
(1) the utility model is coordinated using I types closure unit, II types closure unit and the triple closure modes of sealing cavity
Flexible blockage medium, not only enhances borehole sealing effect, but also sealing is played in the surrounding rock body crack that can drill to seal section
Effect, further improves sealing effect；
(2) switch is equipped with the I types closure unit of the utility model and II types closure unit, switched in spring under normal conditions
Remain turned-off, only when I types, which block, is filled with plugging material in unit and II types closure unit, since plugging material applies spring
Plus-pressure makes switch upspring, and plugging material is flow in drilling by corresponding aperture；Increase the leakproofness and filling effect of equipment；
(3) the afterbody connection side leakage valve of the II types closure unit of the utility model, by rotating the adjusting spiral shell in side leakage valve
The pretightning force of female adjustable springs, to adjust the Opening pressure of ball；Side leakage valve has certain initial Opening pressure, closure
Capsule rises swollen after sealing cavity and collection cavity are formed with drilling, and flexible blockage medium, into sealing cavity, has through side leakage valve
Sealing effect beneficial to enhancing sealing cavity to drilling；
(4) the one-way sealing strip of paper used for sealing only opened to collection inside pipe wall is equipped with the collection tube of the utility model, drilling can be made
In gas entered by the opening between one-way sealing strip of paper used for sealing in collection tube, it is while single playing a swollen I types closure unit, the closure of II types
Member, can prevent flexible blockage medium from directly entering by the 3rd aperture in drilling.
Brief description of the drawings
The accompanying drawings which form a part of this application are used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation are used to explain the application, do not form the improper restriction to the application.
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the gas pumping view of the utility model；
Fig. 3 is the test probe structure diagram of the utility model；
Fig. 4 is the conehead structure diagram of the utility model；
Fig. 5 is that the I types of the utility model block cellular construction schematic diagram；
Fig. 6 is the 4th switch structure diagram of the utility model；
Fig. 7 is the collection tube structure diagram of the utility model；
The collection tube partial enlarged view of Fig. 8 the utility model；
Fig. 9 is the communicating tube structure schematic diagram of the utility model；
Figure 10 is that the II types of the utility model block cellular construction schematic diagram；
Figure 11 is the side leakage valve arrangement schematic diagram of the utility model；
Figure 12 is the side leakage valve profile of the utility model；
Wherein, 1, coal and rock, 2, drilling, 3, conehead, 4, I types closure unit, 5, II types closure unit, 6, sealing cavity,
7th, cavity is gathered, 8, communicating pipe, 9, collection tube, 10, drilling rod, 11, hose, 12, drilling machine, 13, supply operation console, 14, first opens
Close, 15, pressure gauge, 16, flowmeter, 17, second switch, 18, collect operation console, the 19, the 3rd switch, 20, gas pressure table,
21st, electronic pressure gage, 22, collecting tank, 23, unidirectional stop valve, 24, flexible blockage medium, 25, side leakage valve, 26, II type tubuloses connect
Head, the 27, second closure capsule, 28, block, the 29, first spring, the 30, first aperture, the 31, the 3rd aperture, 32, one-way sealing strip of paper used for sealing,
33rd, basal body pipe, 34, ball, 35, second spring, 36, second orifice, 37, adjusting nut, the 38, the 4th switch, 39, I-tube
Straight coupling, the 40, first closure capsule, the 41, the 5th switch.
Embodiment
It is noted that described further below is all illustrative, it is intended to provides further instruction to the application.It is unless another
Indicate, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
As background technology is introduced, exist in the prior art that rock body quality of mine drilling interior sealing effect is poor, extraction cost
Deficiency high, double-plugging effect is poor, in order to solve technical problem as above, present applicant proposes a kind of drilling of rock body quality of mine
Gas blocks extraction Intergration system.
In a kind of typical embodiment of the application, as shown in Fig. 3-Figure 12, there is provided a kind of rock body quality of mine drilling watt
This closure test probe, including conehead 3, II types closure unit 5 and two I types closure units 4, the II types closure unit 5
Afterbody is connected with side leakage valve 25；The II types closure unit 5 is arranged between two I types closure units 4, its stem passes through collection tube
The 9 I types of connection one closure units 4 simultaneously form collection cavity 7 with 2 inner walls of drilling, its afterbody is by connecting another I types communicating pipe 8
Block unit 4 and form sealing cavity 6 with 2 inner walls of drilling；Arranged on the I types closure unit 4 and conehead of II types closure 5 stem of unit
3 are connected；Plugging material plays the swollen I types being connected by communicating pipe 8 and blocks unit 4 and II types closure unit 5 and sealing cavity at the same time
6, realize triple closure.
As shown in figure 4, the conehead 3 is arranged on the head of test probe, with I types closure unit 4 to be threadedly coupled, plays and lead
To effect.
As shown in Figure 7 and Figure 8, one end of the collection tube 9 is threadedly coupled with the I types closure unit 4 of test probe stem,
The other end is threadedly coupled with II types closure unit 5；It is several that the 3rd aperture 31 is through with the collection tube 9, the 3rd aperture 31
In two one-way sealing strip of paper used for sealings 32 are installed, the tube wall of the one-way sealing strip of paper used for sealing 32 and collection tube 9 is in a certain angle, two one-way sealings
The opening formed between strip of paper used for sealing 32 is only opened to 9 inner wall of collection tube, can make gas in drilling 2 by one-way sealing strip of paper used for sealing 32 it
Between opening enter in collection tube 9, while playing a swollen I types closure unit 4, an II types closure unit 5, flexible blockage medium can be prevented
24 are directly entered in drilling 2 by the 3rd aperture 31.
As shown in Figure 5 and Figure 6, the I types closure unit 4 has two, respectively positioned at the afterbody and stem of test probe, institute
Stating I types closure unit 4 includes the closure capsule 40 and the 4th of I-tube straight coupling 39, first switch 38, the I-tube straight coupling 39
In the tubular structure of both ends protrusion intermediate recess, the first closure capsule 40 is wrapped and is fixed among I-tube straight coupling 39
Sunk part, I-tube straight coupling 39 are internally provided with passage；4th switch 38 is fixed on the outside of I-tube straight coupling 39
In the middle part of tube wall, and arranged on the inside of the first closure capsule 40.
4th switch 38 includes block 28, the first spring 29 and block external member, and the block 28 is in T-Type structure,
The top both sides of block 28 are equipped with riser, the bottom of block 28 through I-tube straight coupling 39 to its inside, 28 two bottom sides of block
Equipped with connecting plate, the connecting plate is connected by the first spring 29 with the inner wall of I-tube straight coupling 39.
The outside that the block external member is fixed on I-tube straight coupling 39 is engaged with block 28, and the inside of block external member is
Cavity, both sides are equipped with the first aperture 30；Under normal conditions, block 28 is closed under the action of the first spring 29, and riser is proper
Ingeniously seal up the first aperture 30；During filling and blocking material, the plugging material of certain pressure jacks up block 28 upwards, I-tube shape
The inside of connector 39 forms path with the first aperture 30, and plugging material enters 39 He of I-tube straight coupling through the first aperture 30 at this time
In the cavity of first closure capsule 40, the first closure capsule 40 rises swollen.
The plugging material is flexible blockage medium 24, in flow-like.
The II types closure unit 5 is one, between two I types block unit 4, as shown in Figure 10, the closure of II types
Unit 5 includes the second closure capsule 27, the switch of II types tubular configured joint 26 and the 5th 41, the structure of the 5th switch 41 and setting
Mode is identical with the 4th switch 38, and details are not described herein again.
One end of the II types tubular configured joint 26 is equipped with concave part, and the other end is equipped with lug boss, the concave part and protrusion
Groove is formed between portion, the side of the groove is equipped with through hole；The II types tubular configured joint 26 is internally provided with for accommodating envelope
The passage of stifled material.
The concave part of 26 afterbody of II types tubular configured joint is threaded with side leakage valve 25.
As is illustrated by figs. 11 and 12, the side leakage valve include the second spring 35, two of basal body pipe 33, two ball 34,
Two second orifices 36 and two adjusting nuts 37 form.Described matrix pipe 33 is cylindrical tube structure, and its one end is internally provided with
Stepped passage, for stepped passage with the concave part of II types closure 5 afterbody of unit to be threadedly coupled, the concave part is arranged on ladder
The inside of shape passage.
The rear side of the stepped passage is equipped with the cylindrical channel that internal diameter is less than stepped passage, the cylindrical channel
Both sides be arranged with second orifice 36, second orifice 36 is stepped hole, and its one end is connected with stepped passage, the other end with bore
Hole 2 connects；Ball 34 is equipped with the step of the second orifice 36, the rear side of the ball 34 is equipped with second spring 35
With adjusting nut 37, the pretightning force of second spring 35 is adjusted by rotating adjusting nut 37, to adjust the unlatching of ball 34
Pressure.
Flexible blockage medium 24 can be entered in sealing cavity 6 by side leakage valve 25, not only salable drilling 2, but also to boring
Play further sealing function in 2 surrounding rock body crack of hole.Flexible blockage medium 24 can also be entered by side leakage valve 25 and be gathered at the same time
In cavity 7, acted on along 7 surrounding rock body crack of collection cavity using its high pressure and further destroyed, increase fissure permeability, Zhi Hourou
Property closure medium 24 collection tube 9 is entered by the 3rd aperture 31 on collection tube 9 and one-way sealing strip of paper used for sealing 32 and is discharged.
In the another embodiment of the application, as shown in Figure 1, there is provided a kind of rock body quality of mine drilling gas blocks extraction
System, including propulsion system, feed system and test probe, the structure of the test probe are identical with the above embodiment.
The afterbody of the propulsion system connecting test probe, designated position in drilling 2 is advanced into by test probe；The confession
The plugging material of setting pressure is provided to system into test probe.
The propulsion system includes drilling rod 10 and drilling machine 12, and the afterbody of 10 connecting test of the drilling rod probe, plays spreading
With promoting double action, the drilling machine 12 promotes test probe to drilling designated position by drilling rod 10.
The feed system is equipped with supply operation console 13, and the supply operation console 13 is equipped with first be sequentially connected and opens
14, pressure gauge 15, flowmeter 16, second switch 17 are closed, second switch 17 is connected by hose 11 with drilling rod 10.
The flexible blockage that the supply operation console 13 provides certain pressure by hose 11, drilling rod 10 into test probe is situated between
Matter 24.
The pressure gauge 15 supplies the pressure for the flexible blockage medium 24 that operation console 13 is provided, the flow to observe
Table 16 is reading the flow that flexible blockage medium 24 passes through.
Gas pumping process is in drilling 2：
(1) mash gas pumping drilling 2 is beaten：Successively constructed and provided into top plate or bottom plate coal and rock 1 in tunnel with drilling machine 12
The coal seam in extraction region is specified in the drilling 2 of angle to reaching.
(2) test probe is installed：Cleaning drilling 2 in debris, be sequentially connected conehead 3, I types closure unit 4, collection tube 9,
II types closure unit 5, communicating pipe 8 etc., and the I types closure unit 4 of test probe afterbody is connected with drilling rod 10, utilize drilling machine
12 push the test probe installed to specified extraction region.
(3) closing drilling 2：After probe header to be measured reaches specified region, hose 11 is utilized to connect supply operation console 13 and bore
Bar 10, the flexible blockage medium 24 of certain pressure is provided into test probe.
First, open the first switch 14 of supply operation console 13, flexible blockage medium 24 by communicating pipe 8 and collection tube 9,
Enter via the 38, the 5th switch 41 of the corresponding 4th switch in I types closure unit 4 and II types closure unit 5, play swollen first closure
Capsule 40 and second blocks capsule 27, forms sealing cavity 6 and collection cavity 7 respectively.
Continue the pressure of increase flexible blockage medium 24, side leakage valve 25 is opened, and flexible blockage medium 24 is via second orifice
36 enter in sealing cavity 6, and sealing cavity 6 is filled, and further fill 6 surrounding rock body crack of sealing cavity, at this time,
I types closure unit 4, II types closure unit 5 and the sealing cavity 6 of test probe afterbody form triple borehole sealings, behaviour to be supplied
After making 16 registration of the flowmeter stabilization on platform 13, first switch 14 is closed, opens second switch 17, removes communicating pipe 8 and collection
Flexible blockage medium 24 in pipe 9, makes to keep clear inside pipeline.
(4) pressure test：After sealing of hole, do pressure test and test to sealing of hole effect, if sealing of hole is unqualified, need
Again sealing of hole.
In another embodiment of the application, as shown in Figure 2, there is provided a kind of rock body quality of mine drilling gas measure system
System, the measurement system include collection system and test probe, and the main body of the collection system is collection operation console 18, including is received
Collection tank 22, electronic pressure gage 21 and gas pressure table 20, the collecting tank 22, electronic pressure gage 21 and gas pressure table 20 pass through
Pipeline is sequentially connected, and the gas pressure table 20 blocks unit 4 with I types by pipeline and is connected.
Pipeline between the collecting tank 22 and electronic pressure gage 21 is equipped with unidirectional stop valve 23, the gas pressure table
20 pipelines that unit 4 is blocked with I types are equipped with the 3rd switch 19.
Described to collect operation console 18 to collect the methane gas in collection cavity 7, the gas pressure table 20 is reading
Gas pressure registration is taken, the electronic pressure gage 21 is mutually corrected with gas pressure table 20, ensures the accurate of gas pressure parameter
Property.Unidirectional stop valve 23 ensure methane gas can only one-way flow into collecting tank 22.
Firedamp testing operation is carried out after pressure test, detailed process is：
Operation console 18 is collected in connection, opens the 3rd switch 19, and methane gas is entered by the 3rd aperture 31 of collection tube 9 to be adopted
In collector 9, enter through the grade of communicating pipe 8 and collect operation console 18, after the stabilization of gas pressure table 20, read gas pressure table 20 and show
Number, and compared with 21 reading of electronic pressure gage, in the case where the two numerical value is roughly the same, the average value of the two numerical value is taken,
As show collection cavity 7 in gas pressure numerical value, finally will collect in collecting tank 22 methane gas carry out component and
Content analysis.
The part do not addressed in the utility model uses or uses for reference prior art and can be achieved.
The foregoing is merely the preferred embodiment of the application, the application is not limited to, for the skill of this area
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.
Claims (10)
1. a kind of rock body quality of mine drilling gas blocks test probe, it is characterised in that including conehead, II types closure unit and two
I types block unit, and the afterbody of the II types closure unit is connected with side leakage valve；The II types closure unit is arranged on two I types and seals
Between stifled unit, its stem connects an I types closure unit by collection tube and forms collection cavity, its afterbody with drill hole inner wall
By connecting another I types closure unit communicating pipe and forming sealing cavity with drill hole inner wall；Arranged on the I of II types closure unit header
Type closure unit is connected with conehead.
A kind of 2. rock body quality of mine drilling gas closure test probe according to claim 1, it is characterised in that the I types
Blocking unit includes I-tube straight coupling, the first closure capsule and the 4th switch, and the 4th switch is arranged on I-tube straight coupling
Circumferential side, the first closure capsule are coated on the outside of I-tube straight coupling, and being internally provided with for the I-tube straight coupling is logical
Road.
A kind of 3. rock body quality of mine drilling gas closure test probe according to claim 2, it is characterised in that the I types
The both ends of tubular configured joint are equipped with lug boss, and groove is formed between the lug boss, and the side of the groove is equipped with opens for the 4th
Close through through hole；
4th switch includes block and the first spring, and one end of the block passes through the first spring and I-tube straight coupling
Inner wall is connected, and the other end of the block is arranged on the outside of I-tube straight coupling.
A kind of 4. rock body quality of mine drilling gas closure test probe according to claim 3, it is characterised in that the block
In T-Type structure, the inner side of the block is equipped with block external member, and the block external member is fixed on the outside of through hole and both sides are set
There is the first aperture.
A kind of 5. rock body quality of mine drilling gas closure test probe according to claim 1, it is characterised in that the II types
Blocking unit includes II types tubular configured joint, the second closure capsule and the 5th switch, and the 5th switch is arranged on II type tubular configured joints
Circumferential side, the second closure capsule is coated on the outsides of II type tubular configured joints, and the inside of the II types tubular configured joint is set
There is passage.
A kind of 6. rock body quality of mine drilling gas closure test probe according to claim 5, it is characterised in that the II types
One end of tubular configured joint is equipped with concave part, and the other end is equipped with lug boss, groove is formed between the concave part and lug boss, described
The side of groove is equipped with through hole.
A kind of 7. rock body quality of mine drilling gas closure test probe according to claim 1, it is characterised in that the side leakage
Valve includes basal body pipe, ball, second spring and adjusting nut, and described matrix pipe inner back side is small equipped with second along axisymmetrical
Hole, is equipped with ball, the rear side of the ball and the end thereof contacts of second spring, the second spring in the second orifice
The other end contacted with adjusting nut.
A kind of 8. rock body quality of mine drilling gas closure test probe according to claim 1, it is characterised in that the collection
Pipe is equipped with some 3rd apertures, and two one-way sealing strip of paper used for sealings being oppositely arranged are equipped with the 3rd aperture；Two one-way sealings
The opening towards collection inside pipe wall is formed between bar.
9. a kind of rock body quality of mine drilling gas blocks extraction system, it is characterised in that including propulsion system, feed system and according to
Any test probes of claim 1-7, the afterbody of the propulsion system connecting test probe, test probe is advanced into
Designated position in drilling；The feed system provides the plugging material of setting pressure into test probe.
10. a kind of rock body quality of mine drilling gas closure extraction system according to claim 9, it is characterised in that described to push away
Include drilling rod and drilling machine, the afterbody of the drilling rod connecting test probe into system；The feed system is equipped with supply operation console,
The supply operation console is equipped with the first switch being sequentially connected, pressure gauge, flowmeter, second switch, and the second switch leads to
Hose is crossed with drilling rod to be connected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721323516.5U CN207229060U (en) | 2017-10-13 | 2017-10-13 | A kind of rock body quality of mine drilling gas blocks extraction Intergration system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721323516.5U CN207229060U (en) | 2017-10-13 | 2017-10-13 | A kind of rock body quality of mine drilling gas blocks extraction Intergration system |
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|---|---|---|---|
| CN201721323516.5U Expired - Fee Related CN207229060U (en) | 2017-10-13 | 2017-10-13 | A kind of rock body quality of mine drilling gas blocks extraction Intergration system |
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| CN108709841B (en) * | 2018-04-20 | 2020-05-19 | 大连理工大学 | Rock mass permeability in-situ testing device |
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| CN108643891B (en) * | 2018-04-20 | 2021-08-17 | 大连理工大学 | Single-loop overburden fracture double-end plugging and leakage detection method |
| CN108643901B (en) * | 2018-04-20 | 2021-08-17 | 大连理工大学 | Multi-section graded pressure reduction water injection observation method based on fracture observation |
| CN111395991A (en) * | 2020-03-17 | 2020-07-10 | 中国矿业大学 | Recyclable high-resistance high-pressure drilling sealing device and using method |
| CN114809915A (en) * | 2022-04-15 | 2022-07-29 | 河南理工大学 | Coal seam deep and long hole drilling, hole sealing and pressure measuring integrated device and pressure measuring method |
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