CN108775245B - A kind of controllable pressure injection apparatus and its method based on hydraulic accumulator - Google Patents
A kind of controllable pressure injection apparatus and its method based on hydraulic accumulator Download PDFInfo
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- CN108775245B CN108775245B CN201810378319.6A CN201810378319A CN108775245B CN 108775245 B CN108775245 B CN 108775245B CN 201810378319 A CN201810378319 A CN 201810378319A CN 108775245 B CN108775245 B CN 108775245B
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- pressure
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- gun barrel
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C37/00—Other methods or devices for dislodging with or without loading
- E21C37/06—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole
- E21C37/12—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole by injecting into the borehole a liquid, either initially at high pressure or subsequently subjected to high pressure, e.g. by pulses, by explosive cartridges acting on the liquid
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1066—Making by using boring or cutting machines with fluid jets
Abstract
A kind of controllable pressure injection apparatus based on hydraulic accumulator, including storage pressure system, pressure-retaining system, sealing system and spraying system, wherein, the storage pressure system includes pressure cylinder first half, annular piston and middle connection body, the pressure-retaining system includes that accumulator, pressure cylinder be latter half of and rear end cap, the sealing system includes hydraulic drive cylinder, propelling piston, drive end bearing bracket, seal pipe, enlarged end and Dilated rubber hose, and the spraying system includes hydraulic valve and injection gun barrel.The present invention can make rock bearing tension damage, improve hard rock drivage efficiency in a manner of fluid power to drilling hole bottom fast application pressure.
Description
Technical field
The present invention relates to a kind of device for being split up broken rock using high pressure liquid stream, it is especially a kind of based on hydraulic accumulator can
Governor pressure injection apparatus and its method belong to exploitation tunnelling engineering technical field.
Background technique
21 century is the period in tunnel and underground space great development, with mentioning for China's expanding economy and scientific and technological level
The excavation means of height, the underground space are also more and more, but with the increase of the raising of underground space demand and cutting depth, ground
The development construction of down space is faced with new difficulty and challenge.Coal is opened as the most important energy in China's energy system
Hair and the excavation using the driving and deep rock mass for be unableing to do without underground passage, with the development of economic construction of China, the need of coal
The amount of asking is growing on and on, and the excavation of underground deep hard rock is urgently to be resolved as a big technological difficulties, seriously constrains coal production
Coordinated development.
Currently, domestic stone drifting mainly uses drilling and blasting method and comprehensive pick method, but both piercing techniques all there is into
The problems such as ruler level is low, mechanization degree is low.Especially hard rock driving aspect, drivage efficiency are substantially reduced.
Summary of the invention
In order to overcome the above-mentioned deficiency of the prior art, the present invention provides a kind of controllable pressure injection based on hydraulic accumulator
Devices and methods therefor can convert the pressure of high-pressure fluid to the power that is split up for acting on rock interior, effectively improve hard rock
Drivage efficiency.
The technical solution used to solve the technical problems of the present invention is that:
A kind of controllable pressure injection apparatus based on hydraulic accumulator, it is characterized in that: include storage pressure system, pressure-retaining system,
Sealing system and spraying system；The storage pressure system includes pressure cylinder first half, annular piston and middle connection body, San Zhean
Dress on the same axis, annular piston go forward side by side positioned at pressure cylinder and hydraulic regulation pipe between action sealing, pressure cylinder first half and
The end of middle connection body is fixed together, and both ends are equipped in middle connection body and are respectively communicated in external and pressure cylinder first half
The high-pressure fluid inlet channel of chamber；The pressure-retaining system includes accumulator, pressure cylinder is latter half of and rear end cap, pressure cylinder are later half
Portion and the rear end of hydraulic regulation pipe are detachably connected and are sealed with rear end cap respectively, and the outer end of rear end cap is equipped with accumulation of energy
Device, and accumulator is communicated to the latter half of inner cavity of pressure cylinder；The sealing system includes hydraulic drive cylinder, propelling piston, front end
Lid, seal pipe, enlarged end and Dilated rubber hose, seal pipe sequentially pass through the axle center of drive end bearing bracket and propelling piston, seal pipe rear end
It is connected to one with propelling piston, Dilated rubber hose is connected with the docking of the front end of seal pipe, coaxial line, seal pipe and drive end bearing bracket
And dynamic sealing is all carried out between propelling piston and hydraulic drive cylinder, the front end of hydraulic drive cylinder is detachably connected to drive end bearing bracket
Rear end and be sealed, the rear end of hydraulic drive cylinder is fixedly connected with middle connection body, and two are additionally provided in middle connection body
End is respectively communicated with external and hydraulic drive cylinder inner cavity oil inlet and outlet；The spraying system includes hydraulic valve and ejecting gun
Pipe, hydraulic valve is coaxially mounted to inside the hydraulic regulation pipe front port in storage pressure system, and is moved in front end therebetween
Sealing, injection gun barrel coaxial line are sheathed on inside seal pipe and pass through propelling piston, spray the front end of gun barrel coaxially, removably
It is connected with enlarged end, the rear end for spraying gun barrel is fixedly connected with middle connection body, and hydraulic valve front end has tapered region, with spray
The groove for penetrating gun tube rear end fits.
A kind of controllable pressure injection method based on hydraulic accumulator, includes the following steps:
A, injection gun barrel being inserted into rock-boring, propelling piston pushes seal pipe that Dilated rubber hose is pushed into enlarged end,
It is bonded injection gun barrel overall diameter expansion with rock-boring inner wall, forms sealing space in the bottom hole of rock-boring；
B, start hydraulic valve, be bonded with the groove of injection gun tube rear end；High-pressure spray is passed through through high-pressure fluid inlet channel
Body medium forms high-pressure area in pressure cylinder leading portion；
C, the pressure change of pressure cylinder and accumulator is monitored；
D, after pressure reaches predetermined value, reducing pressure in hydraulic regulation pipe is gradually 0, before high-pressure area is to hydraulic valve
The pressure that end cone face area generates is greater than in rear end hydraulic regulation pipe after oil circuit pressure, after hydraulic valve slides backward and sprays gun barrel
Groove separation is held, high-pressure fluid medium moment under the thrust of pressure itself and annular piston pours in rock-boring bottom hole
Sealing space, the pressure of generation are enough to make rock from internal rupture.
Compared with prior art, a kind of controllable pressure injection apparatus and its method based on hydraulic accumulator of the invention, benefit
The characteristics of being far below compression strength with Tensile Strength of Rock can realize the broken of hard rock with lower pressure, and efficiency of breaking rock is high,
Safety and environmental protection.The present invention can replace the quick-fried method tunneling method of conventional brill-, be easy to join with digging devices such as development machine, rock drills
It closes, achievable underground nobody or few people is connect with electromechanical control equipment and exploits and tunnels, is had many advantages, such as small-scale, easy to control.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the structural schematic diagram of one embodiment of the invention.
Fig. 2 is the enlarged drawing in Fig. 1 at A.
Fig. 3 is the enlarged drawing in Fig. 1 at B.
In figure, 1, rear end cap；2, accumulator；3, hydraulic regulation pipe；4, pressure cylinder；5, annular piston；6, hydraulic valve；6-
1, tapered region；7, middle connection body；7-1, high-pressure fluid inlet channel；7-2, oil inlet and outlet；8, hydraulic drive cylinder；9, it promotes and lives
Plug；10, drive end bearing bracket；11, gun barrel is sprayed；11-1, groove；12, seal pipe；13, Dilated rubber hose；14, enlarged end.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, belongs to protection scope of the present invention.
In order to describe to understand needs, illustrate, " preceding " end mentioned in the present embodiment, " preceding " half portion or
" preceding " side, all refers to the downwardly direction in Fig. 1, and " rear " is then consistent with the direction of " upward ".
In Fig. 1 into embodiment illustrated in fig. 3, a kind of controllable pressure injection apparatus based on hydraulic accumulator, in rock
Apply in churn drill hole and be split up power and carry out broken operation to rock out of hole, including storage pressure system, pressure-retaining system, sealing system and
Spraying system；Wherein, storage pressure system includes pressure cylinder first half 4-2, annular piston 5 and middle connection body 7, San Zhean
Dress on the same axis, go forward side by side to take action between pressure cylinder 4 and hydraulic regulation pipe 3 and seal, pressure cylinder first half by annular piston 5
4-2 and the end of middle connection body 7 are fixed together, and both ends are equipped in middle connection body 7 and are respectively communicated with external and pressure cylinder
The high-pressure fluid inlet channel 7-1 of the inner cavity first half 4-2, high-pressure fluid medium are entered by the high-pressure fluid inlet channel 7-1
Pressure cylinder 4 pushes annular piston 5 to move backward storage high-pressure fluid medium；The pressure-retaining system includes accumulator 2, pressure
The rear end of the latter half of 4-1 of cylinder and rear end cap 1, the latter half of 4-1 of pressure cylinder and hydraulic regulation pipe 3 detachably connects with rear end cap 1 respectively
It connects and is sealed, the outer end of rear end cap 1 is equipped with accumulator 2, and accumulator 2 is communicated to the latter half of inner cavity 4-1 of pressure cylinder；It stores
Energy device 2 absorbs the high pressure oil from pressure cylinder 4, and when 5 front end high fluid media (medium) of annular piston sprays, the release of accumulator 2 is stored
Hydraulic oil maintain the pressure in 4 short time of pressure cylinder not occur acutely to decline；Raising with pressure in pressure cylinder 4 reaches
The pressure of setting reduces the oil pressure in hydraulic regulation pipe 3, and hydraulic valve 6 moves backward under the pressure of high-pressure fluid medium, high
Fluid media (medium) is pressed to spray from injection gun barrel 11.The sealing system include hydraulic drive cylinder 8, propelling piston 9, drive end bearing bracket 10,
Seal pipe 12, enlarged end 14 and Dilated rubber hose 13, seal pipe 12 sequentially passes through the axle center of drive end bearing bracket 10 and propelling piston 9, close
12 rear end of tube sealing is connected to one with propelling piston 9, and Dilated rubber hose 13 docks with the front end of seal pipe 12, coaxial line phase
Even, dynamic sealing, 13 energy of Dilated rubber hose are all carried out between seal pipe 12 and drive end bearing bracket 10 and propelling piston 9 and hydraulic drive cylinder 8
As propelling piston 9 is moved along axis, the front end of hydraulic drive cylinder 8 is detachably connected to the rear end of drive end bearing bracket 10 and carries out close
The rear end of envelope, hydraulic drive cylinder 8 is fixedly connected in a manner of welding etc. with middle connection body 7, is additionally provided with two in middle connection body 7
End is respectively communicated with external and 8 inner cavity of hydraulic drive cylinder oil inlet and outlet 7-2, the pressure of the high-pressure fluid medium from front end backward
Hydraulic oil is pressed into accumulator by annular piston 5, for the pressure in storage system.The spraying system includes hydraulic valve
Body 6 and injection gun barrel 11, hydraulic valve 6 are coaxially mounted to inside the hydraulic regulation pipe 3 in storage pressure system, and therebetween in preceding
End carries out dynamic sealing, and final hydraulic valve 6 can only be translated in the groove of 3 front end of hydraulic regulation pipe, cannot be removed；Spray gun barrel
11 coaxial lines are sheathed on 12 inside of seal pipe and pass through propelling piston 9, and the front end of injection gun barrel 11 is coaxial, is detachably connected with
Enlarged end 14, the rear end for spraying gun barrel 11 are fixedly connected in a manner of welding etc. with middle connection body 7,6 front end of hydraulic valve tool
There is tapered region 6-1, fits with the groove 11-1 of injection 11 rear end of gun barrel.Hydraulic valve 6 for opening and closing pressure cylinder 4 with
The connected state between gun barrel 11 is sprayed, the start-up and shut-down control to spraying system is realized by hydraulic regulation pipe 3.Preferably, described
6 front end of hydraulic valve tapered region 6-1 with injection 11 rear end of gun barrel groove 11-1 be bonded after still there are part tapered region is sudden and violent
It is exposed in high-pressure fluid, thrust backward is generated to hydraulic valve 6.The annular piston 5 and pressure cylinder 4 and hydraulic regulation pipe
Dynamic sealing is carried out by guidance tape and Glais ring between 3, enables annular piston 5 between hydraulic regulation pipe 3 and pressure cylinder 4
Sliding.
In the present embodiment, the end of the pressure cylinder first half 4-2 and middle connection body 7 is welded to together；Pressure
The latter half of 4-1 of power cylinder is connected through a screw thread with rear end cap 1, intermediate to be sealed by O-ring.The hydraulic drive cylinder 8 passes through spiral shell
Line is connected to the rear end of drive end bearing bracket 10, is equipped with the sealing that O-ring guarantees hydraulic oil therebetween；It is set between drive end bearing bracket 10 and seal pipe 12
There are guidance tape and Si Te envelope to guarantee the sealing of hydraulic oil.The enlarged end 14 is threadedly attached in injection gun barrel 11
On；Dynamic sealing is carried out by guide sleeve and Glais ring between hydraulic valve 6 and hydraulic regulation pipe 3, makes hydraulic valve 6 in intraluminal fluid
It being moved forward under the promotion of pressure oil, the tapered region 6-1 of 6 front end of hydraulic valve is bonded with the groove 11-1 of injection 11 rear end of gun barrel,
Sealing space is formed in pressure cylinder 4.
It is buffered to be formed to annular piston 5, in the middle connection body 7 towards being equipped with one on the end face of pressure cylinder 4
Protruding circular ring, the protruding circular ring are located in the inner cavity of pressure cylinder 4, and the height of protruding circular ring can go 1 centimetre.
Preferably, the tapered region 6-1 of 6 front end groove 11-1 and hydraulic valve of 11 rear end of injection gun barrel is
45 ° of chamfering；Still further, groove 11-1 is 1 × 1mm chamfering, tapered region 6-1 is the chamfering of 8 × 8mm.
A kind of controllable pressure injection method based on hydraulic accumulator of the embodiment of the present invention, includes the following steps:
A, injection gun barrel 11 is inserted into rock-boring, propelling piston 9 pushes seal pipe 12 to be pushed into increase by Dilated rubber hose 13
Thick end 14 is bonded injection 11 overall diameter of gun barrel expansion with rock-boring inner wall, and it is empty to form sealing in the bottom hole of rock-boring
Between；
B, start hydraulic valve 6, be bonded with the groove 11-1 of injection 11 rear end of gun barrel；Through high-pressure fluid inlet channel 7-1
It is passed through high-pressure fluid medium, forms high-pressure area in 4 leading portion of pressure cylinder；
C, the pressure change of pressure cylinder 4 and accumulator 2 is monitored；
D, after pressure reaches predetermined value, reducing pressure in hydraulic regulation pipe 3 is gradually 0, when high-pressure area is to hydraulic valve 6
The pressure that front end tapered region 6-1 is generated is greater than in rear end hydraulic regulation pipe 3 after oil circuit pressure, and hydraulic valve 6 slides and spray backward
Gun tube rear end groove 11-1 separation is penetrated, high-pressure fluid medium moment under the thrust of pressure itself and annular piston 5 pours in
The sealing space of rock-boring bottom hole, the pressure of generation are enough to make rock from internal rupture.
Wherein, the high-pressure fluid medium can be the media such as high-pressure foam or high pressure water.
Controllable pressure injection of the present invention is that hydraulic regulation pipe 3 by regulatable hydraulic power unit fuel feeding, passes through setting difference
Fuel feeding realize opposing jet body pressure medium size regulation.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, it is all according to
According to technical spirit of the invention, any simple modification and same variation are made to above embodiments, each fall within guarantor of the invention
Within the scope of shield.
Claims (10)
1. a kind of controllable pressure injection apparatus based on hydraulic accumulator, it is characterized in that: including storage pressure system, pressure-retaining system, close
Envelope system and spraying system；Wherein, storage pressure system includes that pressure cylinder first half (4-2), annular piston (5) and middle part connect
Junctor (7), three install on the same axis, and annular piston (5), which is located between pressure cylinder (4) and hydraulic regulation pipe (3), goes forward side by side
Action sealing, pressure cylinder first half (4-2) and the end of middle connection body (7) are fixed together, and set in middle connection body (7)
There are both ends to be respectively communicated with external and the inner cavity pressure cylinder first half (4-2) high-pressure fluid inlet channel (7-1)；The positive system
System includes accumulator (2), pressure cylinder latter half of (4-1) and rear end cap (1), pressure cylinder latter half of (4-1) and hydraulic regulation pipe (3)
Rear end be detachably connected and be sealed with rear end cap (1) respectively, the outer end of rear end cap (1) is equipped with accumulator (2), and store
Energy device (2) is communicated to the latter half of inner cavity (4-1) of pressure cylinder；The sealing system includes hydraulic drive cylinder (8), propelling piston
(9), drive end bearing bracket (10), seal pipe (12), enlarged end (14) and Dilated rubber hose (13), seal pipe (12) sequentially pass through drive end bearing bracket
(10) it is connected to one with the axle center of propelling piston (9), seal pipe (12) rear end with propelling piston (9), Dilated rubber hose
(13) be connected with the docking of the front end of seal pipe (12), coaxial line, seal pipe (12) and drive end bearing bracket (10) and propelling piston (9) and
Dynamic sealing is all carried out between hydraulic drive cylinder (8), after the front end of hydraulic drive cylinder (8) is detachably connected to drive end bearing bracket (10)
It holds and is sealed, the rear end of hydraulic drive cylinder (8) is fixedly connected with middle connection body (7), is also set in middle connection body (7)
There are both ends to be respectively communicated with external and hydraulic drive cylinder (8) inner cavity oil inlet and outlet (7-2)；The spraying system includes hydraulic valve
Body (6) and injection gun barrel (11), the hydraulic regulation pipe (3) that hydraulic valve (6) is coaxially mounted in storage pressure system is internal, and two
Dynamic sealing is carried out in front end between person, injection gun barrel (11) coaxial line is sheathed on seal pipe (12) inside and passes through propelling piston
(9), the front end of injection gun barrel (11) is coaxial, is detachably connected with enlarged end (14), sprays the rear end of gun barrel (11) in
Portion's connector (7) is fixedly connected, and hydraulic valve (6) front end has tapered region (6-1), the groove with injection gun barrel (11) rear end
(11-1) fits.
2. a kind of controllable pressure injection apparatus based on hydraulic accumulator according to claim 1, it is characterized in that: described
Dynamic sealing is carried out by guidance tape and Glais ring between annular piston (5) and pressure cylinder (4) and hydraulic regulation pipe (3), makes ring
Shape piston (5) can slide between hydraulic regulation pipe (3) and pressure cylinder (4).
3. a kind of controllable pressure injection apparatus based on hydraulic accumulator according to claim 1 or 2, it is characterized in that: institute
The end of the pressure cylinder first half (4-2) and middle connection body (7) stated is welded to together；Pressure cylinder latter half of (4-1) is with after
End cap (1) is connected through a screw thread, intermediate to be sealed by O-ring.
4. a kind of controllable pressure injection apparatus based on hydraulic accumulator according to claim 1 or 2, it is characterized in that:
The middle connection body (7) is equipped with a protruding circular ring towards the end face of pressure cylinder (4), which is located at pressure cylinder
(4) in inner cavity.
5. a kind of controllable pressure injection apparatus based on hydraulic accumulator according to claim 1 or 2, it is characterized in that: institute
The hydraulic drive cylinder (8) stated is threadedly attached in the rear end of drive end bearing bracket (10), is equipped with O-ring therebetween and guarantees the close of hydraulic oil
Envelope；Guidance tape and Si Te envelope are equipped between drive end bearing bracket (10) and seal pipe (12) to guarantee the sealing of hydraulic oil.
6. a kind of controllable pressure injection apparatus based on hydraulic accumulator according to claim 1 or 2, it is characterized in that: institute
The enlarged end (14) stated is threadedly attached in injection gun barrel (11)；Lead between hydraulic valve (6) and hydraulic regulation pipe (3)
It crosses guide sleeve and Glais ring carries out dynamic sealing.
7. a kind of controllable pressure injection apparatus based on hydraulic accumulator according to claim 1 or 2, it is characterized in that: institute
The groove (11-1) of injection gun barrel (11) rear end stated and the tapered region (6-1) of hydraulic valve (6) front end are all 45 ° of chamfering,
And groove (11-1) is 1 × 1mm chamfering, tapered region (6-1) is the chamfering of 8 × 8mm.
8. a kind of controllable pressure injection apparatus based on hydraulic accumulator according to claim 1 or 2, it is characterized in that: institute
The rear end and middle connection body (7) for stating hydraulic drive cylinder (8) are welded；The rear end and middle connection body (7) for spraying gun barrel (11) are welded
Connect fixation.
9. a kind of injection method based on the controllable pressure injection apparatus described in claim 1 based on hydraulic accumulator, feature
It is, includes the following steps:
A, injection gun barrel (11) is inserted into rock-boring, propelling piston (9) pushes seal pipe (12) to push away Dilated rubber hose (13)
To enlarged end (14), it is bonded injection gun barrel (11) overall diameter expansion with rock-boring inner wall, in the bottom hole shape of rock-boring
At sealing space；
B, start hydraulic valve (6), be bonded with the groove (11-1) of injection gun barrel (11) rear end；Through high-pressure fluid inlet channel
(7-1) is passed through high-pressure fluid medium, forms high-pressure area in pressure cylinder (4) leading portion；
C, the pressure change of pressure cylinder (4) and accumulator (2) is monitored；
D, after pressure reaches predetermined value, reducing pressure in hydraulic regulation pipe (3) is gradually 0, when high-pressure area is to hydraulic valve (6)
The pressure that front end tapered region (6-1) generates is greater than in rear end hydraulic regulation pipe (3) after oil circuit pressure, and hydraulic valve (6) is slided backward
It moves and is separated with injection gun barrel rearmost flute (11-1), thrust of the high-pressure fluid medium in pressure itself and annular piston (5)
Lower moment will pour in the sealing space of rock-boring bottom hole, and the pressure of generation is enough to make rock from internal rupture.
10. a kind of injection method of the controllable pressure injection apparatus based on hydraulic accumulator according to claim 9, feature
It is, the high-pressure fluid medium is high-pressure foam or high pressure water.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810378319.6A CN108775245B (en) | 2018-04-25 | 2018-04-25 | A kind of controllable pressure injection apparatus and its method based on hydraulic accumulator |
| CA3081867A CA3081867A1 (en) | 2018-04-25 | 2018-09-21 | Hydraulic accumulator-based controllable pressure injection device and method |
| PCT/CN2018/106902 WO2019205472A1 (en) | 2018-04-25 | 2018-09-21 | Controllable pressure injection apparatus based on hydraulic accumulator and method therefor |
| US16/764,395 US20200355031A1 (en) | 2018-04-25 | 2018-09-21 | Hydraulic accumulator-based controllable pressure injection device and method |
| AU2018420716A AU2018420716A1 (en) | 2018-04-25 | 2018-09-21 | Controllable pressure injection apparatus based on hydraulic accumulator and method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810378319.6A CN108775245B (en) | 2018-04-25 | 2018-04-25 | A kind of controllable pressure injection apparatus and its method based on hydraulic accumulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108775245A CN108775245A (en) | 2018-11-09 |
| CN108775245B true CN108775245B (en) | 2019-08-02 |
Family
ID=64026672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810378319.6A Active CN108775245B (en) | 2018-04-25 | 2018-04-25 | A kind of controllable pressure injection apparatus and its method based on hydraulic accumulator |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20200355031A1 (en) |
| CN (1) | CN108775245B (en) |
| AU (1) | AU2018420716A1 (en) |
| CA (1) | CA3081867A1 (en) |
| WO (1) | WO2019205472A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905544B (en) * | 2019-11-26 | 2021-02-09 | 中国矿业大学 | Pulse jet flow auxiliary type heading machine |
| CN114151082B (en) * | 2021-10-27 | 2023-12-12 | 中国矿业大学 | Automatic high-pressure jet auxiliary rock breaking and foam dust suppression cutting pick device |
| CN114477323B (en) * | 2022-01-10 | 2023-04-25 | 珠海格力电器股份有限公司 | Buckling structure and water purifier |
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| CN203547752U (en) * | 2013-07-16 | 2014-04-16 | 福州德格索兰机械有限公司 | Hydraulic splitting machine |
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- 2018-04-25 CN CN201810378319.6A patent/CN108775245B/en active Active
- 2018-09-21 WO PCT/CN2018/106902 patent/WO2019205472A1/en active Application Filing
- 2018-09-21 CA CA3081867A patent/CA3081867A1/en not_active Abandoned
- 2018-09-21 AU AU2018420716A patent/AU2018420716A1/en not_active Abandoned
- 2018-09-21 US US16/764,395 patent/US20200355031A1/en not_active Abandoned
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| CN101666207A (en) * | 2009-09-15 | 2010-03-10 | 刘国经 | Energy accumulation type hydraulic hole drilling hammer |
| CN202724526U (en) * | 2012-07-30 | 2013-02-13 | 四川海川消防设备有限公司 | Liquid control impact jetting device |
| CN104033155A (en) * | 2014-06-16 | 2014-09-10 | 湖南铭益隧道工程技术有限公司 | Novel tunnel smooth surface digging rock drilling equipment and construction method of novel tunnel smooth surface digging rock drilling equipment |
| CN204225892U (en) * | 2014-10-11 | 2015-03-25 | 北京市政路桥股份有限公司 | A kind of pneumatic fractured rock facility device |
| WO2018038290A1 (en) * | 2016-08-24 | 2018-03-01 | 영인산업 주식회사 | Packer for splitting rock using hydraulic pressure |
| CN106703805A (en) * | 2016-12-02 | 2017-05-24 | 中国矿业大学 | Drilling up rock drilling all-in-one machine based on high pressure froth medium |
Also Published As
| Publication number | Publication date |
|---|---|
| US20200355031A1 (en) | 2020-11-12 |
| AU2018420716A1 (en) | 2020-07-30 |
| WO2019205472A1 (en) | 2019-10-31 |
| CN108775245A (en) | 2018-11-09 |
| CA3081867A1 (en) | 2019-10-31 |
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