CN111502579A - Automatic tunnel pressurize of reporting to police is got core and is equipped - Google Patents
Automatic tunnel pressurize of reporting to police is got core and is equipped Download PDFInfo
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- CN111502579A CN111502579A CN202010346387.1A CN202010346387A CN111502579A CN 111502579 A CN111502579 A CN 111502579A CN 202010346387 A CN202010346387 A CN 202010346387A CN 111502579 A CN111502579 A CN 111502579A
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- core
- coring
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- 238000005553 drilling Methods 0.000 claims abstract description 25
- 238000002347 injection Methods 0.000 claims abstract description 19
- 239000007924 injection Substances 0.000 claims abstract description 19
- 238000012546 transfer Methods 0.000 claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims description 40
- 239000002131 composite material Substances 0.000 claims description 15
- 230000002457 bidirectional effect Effects 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 9
- 239000007789 gas Substances 0.000 description 24
- 239000003245 coal Substances 0.000 description 21
- 238000007789 sealing Methods 0.000 description 17
- 238000003860 storage Methods 0.000 description 10
- 238000005259 measurement Methods 0.000 description 6
- 230000002265 prevention Effects 0.000 description 6
- 239000000725 suspension Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
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- 230000005540 biological transmission Effects 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Images
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
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors
- E21B25/02—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe
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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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
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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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/22—Handling reeled pipe or rod units, e.g. flexible drilling pipes
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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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
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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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/12—Valve arrangements for boreholes or wells in wells operated by movement of casings or tubings
-
- 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
- E21B47/00—Survey of boreholes or wells
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
Abstract
The invention discloses an automatic-alarming roadway pressure-maintaining coring device, which comprises a continuous conduit operation device and a coring device, wherein the continuous conduit operation device comprises a pipeline; the continuous conduit operation equipment comprises a transfer device, wherein the transfer device comprises an injection head and a tunnel drilling machine; the corer includes the inner tube assembly, the outer tube assembly passes through the drilling rod and connects gallery rig, continuous pipe is connected to the inner tube assembly, the syringe needle is used for transferring/carrying and draws continuous pipe, inner tube assembly and outer tube assembly block are connected, the inner tube assembly includes the inner tube subassembly, the center subassembly includes well core rod, continuous pipe is connected at well core rod top, continuous pipe and well core rod are hollow structure, the cable mounting is in continuous pipe and well core rod, bottom surface equipment provides electric power and/or signal to electrical equipment in the corer through the cable. The core taking device has good operation performance, can prevent the core taking barrel from rotating in the core taking process, keeps the core pure, is easy to separate the inner pipe assembly from the outer pipe assembly, is convenient to send a cable, receives signals and provides power.
Description
Technical Field
The invention relates to the field of coal mine tunnel coring operation, in particular to tunnel pressure maintaining coring equipment with an automatic alarm function.
Background
China is a large country for coal production and a large country for coal consumption, and coal is an important basic energy and raw material in China. The coal bed gas content and the coal bed gas pressure are main indexes for predicting and inspecting regional effect of outburst danger regions of outburst coal beds, the coal bed gas content is generally measured by methods such as ground coal bed gas content measurement, geological exploration gas content measurement, drilling and coring of underground coal beds of mines and the like, and due to differences of coal bed gas content test conditions, test methods and the like, the coal bed gas content test results are often large in difference and low in precision, estimation loss generally exists, and the guiding significance for coal mining is limited.
For the coring of coal bed tunnels, the prior art has a core taking device with a coal bed gas rope, the name of which is CN204646157U, the device uses a rope to lift/lower a corer, compressed air needs to be introduced into the core taking device to drive the core taking device to act, while the name of the core taking device with a CN107905752A, the device also uses a rope to lift/lower the corer, meanwhile, the core taking device needs to drive the core taking device to act by water pressure,
in order to further realize pressure-maintaining coring of the coal bed, a coal sample sampler with the publication number of CN201811862U is provided, which performs pressure-maintaining coring of samples by means of a viscous liquid and a vacuum device, wherein fluid media exist in the devices, certain pollution is caused to the coal bed core, the measurement of parameters such as water content and the like is influenced,
at present, the device relies on sample self to promote the effect and opens and start the sealed ball valve of cutting the heart, and the structure is comparatively complicated, need change different accessories to different coal seams and realize the cutting, and the operation is difficult for the airtight coring device of application number CN201410739874.9, name ground well drilling coal bed gas, rock stratum gas content test.
The coring device is generally composed of an inner pipe assembly and an outer pipe assembly, a gap exists between the inner pipe assembly and the outer pipe assembly, so that the risk of gas leakage is high, at present, a blowout prevention box arranged at the top end of a drill rod is often used for preventing gas leakage, but gas still exists in the drill rod, so that the potential safety hazard exists in the coring operation,
the clearance between the inner tube assembly and the outer tube assembly can also cause the coring barrel to easily rotate along with the coring outer barrel, when the external disturbance is large, the coring component has a large error with the real condition,
in order to reduce errors caused by rotation, a single-action device is usually arranged between an outer pipe assembly and an inner pipe assembly of the currently used coring device to reduce the rotation of a coring barrel, but the single-action device has an anti-rotation effect, but the coring barrel still rotates to a certain extent, and the measurement errors are difficult to effectively reduce.
Meanwhile, in the coring process, the inner pipe assembly needs to be placed to the outer pipe assembly and then is clamped and connected, and then a coring barrel in the inner pipe assembly needs to core gas and the like, so that the pressure, the temperature and the like of a gas sample are difficult to monitor,
patents such as CN203430457U and CN104481439B exist in the prior art, and through the deformation of part parts in the coring process, whether a sealing ball valve is closed in place in the device is alarmed, the state of a coring sample cannot be effectively recorded, and the coring sampling accuracy cannot be completely guaranteed.
Disclosure of Invention
The invention aims to provide an automatic-alarming roadway pressure-maintaining coring device which is good in operation performance, capable of preventing a coring barrel from rotating in the coring process, keeping a core pure, easy to separate an inner pipe assembly from an outer pipe assembly, convenient to send a cable, convenient to receive signals and capable of providing power.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
the invention discloses an automatic-alarming roadway pressure-maintaining coring device, which comprises a continuous conduit operation device and a coring device, wherein the continuous conduit operation device comprises a pipeline; the continuous conduit operation equipment comprises a transfer device, wherein the transfer device comprises an injection head and a tunnel drilling machine; the corer includes the inner tube assembly, the outer tube assembly passes through the drilling rod and connects gallery rig, continuous pipe is connected to the inner tube assembly, the syringe needle is used for transferring/carrying and draws continuous pipe, inner tube assembly and outer tube assembly block are connected, the inner tube assembly includes the inner tube subassembly, the center subassembly includes well core rod, continuous pipe is connected at well core rod top, continuous pipe and well core rod are hollow structure, the cable mounting is in continuous pipe and well core rod, bottom surface equipment provides electric power and/or signal to electrical equipment in the corer through the cable, electrical equipment includes the sensor, the sensor is used for monitoring inner tube assembly and outer tube total block state, the sensor passes through cable junction processing terminal.
Preferably, the inner pipe assembly comprises a core outer barrel, a self-gravity valve is arranged at the bottom of the core outer barrel and comprises an annular valve seat and a circular valve clack, the edge of the circular valve clack is hinged to the edge of the top surface of the annular valve seat, and the circular valve clack is of an elastic structure.
Preferably, the bottom end of the central rod is fixedly connected with a piston, a pressure maintaining controller is arranged in the piston,
the pressure maintaining controller comprises a pressure maintaining cylinder, the pressure maintaining cylinder is vertically arranged, a pressure maintaining piston is arranged in the pressure maintaining cylinder, the pressure maintaining piston is in sliding fit with the inner wall of the pressure maintaining cylinder, the pressure maintaining piston divides the pressure maintaining cylinder into an upper cavity and a lower cavity, the lower cavity is communicated with the bottom surface of the piston, and gas is filled in the upper cavity.
Preferably, a composite bearing is arranged between the inner pipe assembly and the central assembly, the central assembly comprises a positioning pipe section,
the composite bearing comprises a base, wherein the base is in a thrust bearing form, the base is arranged in an inner pipe assembly, the inner wall of the base is provided with an annular ball recess, the middle of a positioning pipe section is provided with a plurality of ball holes along the circumferential direction, a spherical roller is arranged in the ball holes, and the convex part of the spherical roller is matched with the ball recess.
Preferably, the central component is provided with a first annular convex edge, a thrust bearing is arranged between the first annular convex edge and the inner pipe component, and the first annular convex edge is positioned between the two thrust bearings.
Preferably, the top of the inner pipe component is provided with an elastic clamping mechanism, the inner wall of the top of the outer pipe assembly is provided with an elastic clamping chamber, the outer wall of the elastic clamping mechanism is provided with a latch groove, a latch is arranged in the latch groove, the bottom of the latch is rotatably connected with the inner wall of the latch groove, a spring is arranged between the top of the latch and the latch groove, the latch is matched with the elastic clamping chamber,
the sensor includes the pressure sensor, and the pressure sensor is located in the bullet card mechanism, and the pressure sensor passes through signal cable connection processing terminal, and the signal cable is installed in continuous pipe and central pole.
Preferably, the central component further comprises a core inner barrel, the bottom of the central rod is inserted into the core inner barrel, the bottom end of the central rod is provided with a temperature sensor and a pressure sensor, the processing terminal is connected with the temperature sensor and the pressure sensor through signal cables, and the signal cables are installed in the continuous guide pipe and the central rod.
Preferably, the continuous conduit operation equipment further comprises a reel device, the reel device comprises a collecting ring and a reel, a cable in the continuous conduit is electrically connected with the collecting ring, the reel is arranged on a reel frame, a pipe arrangement device assembly is arranged on the reel frame and used for controlling the sequence of reels of the continuous conduit, and the reel is driven by a reel motor;
the pipe arranging device assembly comprises a support and a torque limiter, a lifting hydraulic rod is arranged between the support and a winding drum frame, a bidirectional screw rod is arranged on the support, a guide device is arranged on the bidirectional screw rod, a mechanical counter and a rotating system are arranged in the guide device, the rotating system comprises a plurality of conveying wheels, and a lifting oil cylinder is arranged between the guide device and the bidirectional screw rod.
Preferably, the bottom end of the positioning pipe section is provided with an alarm sensor which is a pressure-sensitive sensor.
Preferably, the injection head comprises two transfer means arranged side by side, between which the continuous conduit is positioned, the continuous conduit being transferred gripped by the two transfer means.
The invention has the beneficial effects that:
1. the self-gravity valve used in the invention has simple structure and good operation performance.
2. The anti-rotation device comprises a continuous guide pipe, a composite bearing and the like, wherein the continuous guide pipe is arranged in the tunnel, the composite bearing is arranged in the tunnel, the continuous guide pipe is connected with the continuous guide pipe through a connecting rod, the composite bearing is arranged in the tunnel, and the connecting rod is connected with the continuous guide pipe through a connecting rod.
3. The self-gravity valve is used in the invention, and no extra power is needed to be provided for pressure maintaining and fidelity, so that the purity of the rock core can be kept.
4. The continuous conduit and the central rod are both of hollow structures, the control cable and the power cable are both arranged in the hollow structures, electrical equipment such as a temperature sensor, a pressure sensor and other monitoring equipment can be easily arranged in the coring device, heating devices, cooling devices, pressurizing devices and the like can be arranged, and power can be provided for the devices through the cables in the hollow structures.
5. When the spring is pressed, the pressure sensor button is pressed down to monitor whether the inner pipe assembly is clamped in place or not, the ground can receive in-place signals, and the temperature sensor and the pressure sensor are positioned in the storage cylinder and can detect the temperature and pressure changes in the coring process.
6. The device has simple structure, the inner pipe assembly is easy to separate from the outer pipe assembly, and the failure rate is low.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of an outer tube assembly;
FIG. 3 is a cross-sectional view of the outer tube assembly;
FIG. 4 is a cross-sectional view of the center assembly mounted to the inner tube assembly prior to coring;
FIG. 5 is a cross-sectional view of the center assembly mounted to the inner tube assembly after coring;
FIG. 6 is a schematic view of the card ejection mechanism of FIG. 5;
FIG. 7 is a schematic view of the composite bearing set of FIG. 5;
FIG. 8 is a schematic view of the self-gravity valve of FIG. 5;
FIG. 9 is a schematic view of the composite bearing set prior to coring;
FIG. 10 is a schematic view of a continuous conduit work apparatus;
FIG. 11 is a side view of the transfer device;
FIG. 12 is a schematic view of a reel assembly;
FIG. 13 is a side view of the reel assembly;
FIG. 14 is a schematic view of a guide arch and injection head;
FIG. 15 is a first schematic view of the injector head;
FIG. 16 is a second schematic view of the injector head;
FIG. 17 is a schematic diagram of a clamping block;
FIG. 18 is a schematic view of a hydraulic clamping mechanism;
FIG. 19 is a cross-sectional view of the inner tubing assembly as it passes through the inner blowout preventer joint.
In the figure: 1-reel device, 2-transmission device, 3-coring device, 4-drill rod, 51-first pipe section, 511-elastic clamping chamber, 512-suspension ring, 52-second pipe section, 53-third pipe section, 54-fourth pipe section, 55-reaming section, 551-reaming convex edge, 56-coring bit, 561-blade, 562-first slope surface, 563-first through hole, 61-locking nut, 611-first fixing screw, 62-elastic clamping mechanism, 621-latch groove, 622-latch, 623-pin shaft, 624-spring hole, 625-recess, 626-spring, 627-limiting ring, 628-first slope surface, 629-second slope surface, 63-connecting section, 631-first annular convex edge, 632-thrust bearing hole, 633-seal assembly, 64-fifth pipe segment, 641-second annular ridge, 65-sixth pipe segment, 651-first seal groove, 67-seventh pipe segment, 671-composite bearing set, 6711-base, 6712-top ring, 6713-middle ring, 6714-bottom ring, 6715-roller, 6716-ball recess, 672-fourth set screw, 68-core outer barrel, 681-annular recess, 682-self-gravity valve, 683-annular valve seat, 684-circular flap, 71-center rod, 711-second set screw, 712-piston, 713-second seal groove, 714-fourth slope, 715-third seal groove, 81-core inner barrel, 811-compensating pipe segment, 8111-third set screw, 812-positioning pipe segment, 8121-ball hole, 8122-spherical roller, 8123-third inclined plane, 813-storage cylinder, 8131-anti-skid flange, 814-fixed pipe section, 8141-second through hole, 8142-key, 8143-first key slot, 8144-second key slot, 9-continuous conduit, 101-temperature sensor, 102-pressure sensor, 103-pressure sensor, 104-signal cable, 1101-winding drum, 1102-winding drum rack, 1103-pipe arranging device assembly, 1104-bracket, 1105-lifting hydraulic rod, 1106-bidirectional lead screw, 1107-guiding device, 1108-lifting oil cylinder, 1109-transmission wheel, 1201-guiding arch, 1202-injection head, 1203-drilling machine bracket, 1204-rotary table, 1205-drilling machine hydraulic cylinder, 1206-guide wheel, 1207-pinch roller, 1208-folding hydraulic rod, 1209-sliding block, 1210-outer frame, 1211-transmission chain, 1212-transmission chain motor, 1213-lower chain wheel, 1214-clamping block, 1215-clamping base, 1216-clamping claw, 1217-friction protrusion, 1218-hydraulic clamping mechanism, 1219-clamping arm, 1220-clamping hydraulic cylinder, 1221-transmission chain counter, 1222-load sensor, 1223-blowout preventer, 1224-arch beam, 1225-locking piece, 1226-tensioning device, 1301-mobile base, 1302-track, 1401-valve section, 1402-connecting pipe section, 1403-female section, 1404-outlet section, 1405-male section, 1406-blowout preventer seat, 1407-blowout preventer cover, 1408-torsion spring, 1409-cylindrical pin, 1410-fifth slope, 1411-sixth slope, 1501-holding cylinder, 1502-holding piston, 1503-upper chamber, 1504-lower chamber.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings, wherein the temperature sensor 101, the pressure sensor 102, the pressure sensor 103 and the signal cable 104 are not labeled in fig. 4, but only labeled in fig. 5.
As shown in fig. 1 to 19, the invention discloses an automatic alarming roadway pressure maintaining coring device, which comprises a continuous conduit operation device and a coring device 3.
The continuous conduit operation equipment comprises a reel device 1 and a transfer device 2, wherein the reel device 1 and the transfer device 2 are both provided with a movable base 1301, the movable bases 1301 are both provided with a crawler 1302,
the reel device 1 is used for accommodating the continuous conduit 9, the reel device 1 comprises a reel 1101 and a reel rack 1102, the reel 1101 is arranged on the reel rack 1102, a pipe arranging device assembly 1103 is arranged on the reel rack 1102,
the pipe arrangement device assembly 1103 comprises a support 1104 and a torque limiter, the support 1104 is rotatably connected with a winding drum frame 1102, the support 1104 and the winding drum frame 1102 are provided with lifting hydraulic rods 1105, a bidirectional screw rod 1106 is arranged on the support 1104, a guide device 1107 is arranged on the bidirectional screw rod 1106, a mechanical counter and a rotating system are arranged in the guide device 1107, a lifting oil cylinder 1108 is arranged between the guide device 1107 and the bidirectional screw rod 1106, the rotating system comprises a plurality of conveying wheels 1109, a current collecting ring is further arranged on the winding drum device 1, a cable is arranged in the continuous conduit 9 and electrically connected with the current collecting ring and used for providing power for underground electrical equipment, and when the continuous conduit 9 is in a transmission process, the guide device 1107 reciprocates along the bidirectional screw rod 1106, so that the continuous conduit 9 is neatly stored on.
The transfer device 2 comprises a guide arch 1201, an injection head 1202, a tunnel boring machine,
the tunnel drilling machine comprises a drilling machine support 1203, a turntable 1204 is arranged on the drilling machine support 1203, the bottom end of the drilling machine support 1203 is hinged with a movable base 1301, a drilling machine hydraulic cylinder 1205 is arranged between the drilling machine support 1203 and the movable base 1301, the top end of the drilling machine support 1203 is hinged with an injection head 1202,
the bottom end of the guide arch 1201 is hinged with the top end of the injection head 1202, a plurality of guide wheels 1206 are arranged at the top of the guide arch 1201 at equal intervals along the length direction, a plurality of pinch rollers 1207 are arranged at the top of the guide arch 1201 at equal intervals along the length direction, the guide wheels 1206 and the pinch rollers 1207 form a supply channel of the continuous conduit 9,
the bottom of the guide arch 1201 is provided with a hydraulic assembly, the hydraulic assembly comprises a folding hydraulic rod 1208, the bottom end of the folding hydraulic rod 1208 is hinged with an injection head 1202, the top end of the folding hydraulic rod 1208 is hinged with a sliding block 1209, the sliding block 1209 is in sliding fit with the bottom surface of the guide arch 1201, the guide arch 1201 comprises a plurality of arch beams 1224, the arch beams 1224 are in hinged fit, locking pieces 1225 are arranged between the adjacent arch beams 1224, the locking pieces 1225 are used for locking the guide arch 1201 when the arch beams 1224 are extended to prevent the guide arch 1201 from collapsing,
the injection head 1202 comprises an outer frame 1210, two conveying mechanisms arranged side by side are installed in the outer frame 1210, a continuous conduit 9 is positioned between the two conveying mechanisms, each conveying mechanism comprises a conveying chain 1211, a conveying chain motor 1212 is arranged at the top of each conveying chain 1211, a lower chain wheel 1213 is arranged at the bottom of each conveying chain 1211, a tensioning device 1226 is arranged on each lower chain wheel 1213, each tensioning device 1226 is used for keeping the conveying chain 1211 in a tensioning state, a clamping block 1214 is installed on each conveying chain 1211, each clamping block 1214 comprises a clamping base 1215 and a clamping claw 1216, a friction bulge 1217 is arranged in each clamping claw 1216, adjacent parts of the two conveying chains 1211 pass through a hydraulic clamping mechanism 1218, each hydraulic clamping mechanism 1218 comprises two clamping arms 1219, clamping hydraulic cylinders 1220 are respectively arranged at two ends of each clamping arm 1219, the clamping arms 1219 are in sliding fit with the conveying chains 1211, a turning device is arranged between the injection head 1202 and a drilling machine support 1203, a, The load sensor 1222 connects the rotary disc 1204 of the transmission device 2 with the coring device 3 through the drill rod 4.
The coring device 3 comprises an outer pipe assembly and an inner pipe assembly, wherein the inner pipe assembly is lifted or lowered through a continuous guide pipe to move, the inner pipe assembly is installed inside the outer pipe assembly, the outer wall of the inner pipe assembly is in clearance fit with the inner wall of the outer pipe assembly, the inner pipe assembly comprises an inner pipe component and a center component, the center component is installed in the inner pipe component, the outer wall of the center component is in sliding fit with the inner wall of the inner pipe component, and the outer pipe assembly is connected with the drill rod 4.
The outer pipe assembly comprises a first pipe section 51, a second pipe section 52, a third pipe section 53, a fourth pipe section 54, a reaming section 55 and a core bit 56 which are coaxially installed and connected from top to bottom,
the first pipe section 51, the second pipe section 52, the third pipe section 53 and the fourth pipe section 54 form an outer pipe,
the first pipe section 51 is detachably connected with the second pipe section 52, the bottom end of the first pipe section 51 is a male head, the top end of the second pipe section 52 is a female head, the middle of the first pipe section 51 is provided with two elastic clamping chambers 511, the elastic clamping chambers 511 are arranged along the circumferential direction, the two elastic clamping chambers 511 are arranged oppositely, a first sealing ring is arranged between the first pipe section 51 and the second pipe section 52 and is in sliding fit with the inner pipe assembly, a suspension ring 512 is arranged between the first pipe section 51 and the second pipe section 52, the suspension ring 512 is matched with the bottom edge of the elastic clamping mechanism 62, and when the inner pipe assembly reaches a preset position in the outer pipe assembly, the bottom surface of the elastic clamping mechanism 62 is located on the suspension ring 512 and is used for limiting the descending position of the inner pipe assembly.
The second pipe section 52 is detachably connected with the third pipe section 53, the bottom end of the second pipe section 52 is a male head, the top end of the third pipe section 53 is a female head,
the third pipe section 53 is detachably connected with the fourth pipe section 54, the bottom end of the third pipe section 53 is a male head, the top end of the fourth pipe section 54 is a female head,
the fourth pipe section 54 is detachably connected with the reaming section 55, the bottom end of the fourth pipe section 54 is a male head, the top end of the reaming section 55 is a female head, the outer wall of the reaming section 55 is circumferentially provided with a plurality of reaming convex ridges 551, the reaming convex ridges 551 are arranged at an angle with the vertical direction, an oblique channel is formed between adjacent reaming convex ridges 551,
The inner pipe component comprises a locking nut 61, an elastic clamping mechanism 62, a connecting section 63, a fifth pipe section 64, a sixth pipe section 65, a seventh pipe section 67 and a core outer cylinder 68 which are arranged from top to bottom in sequence,
the locking nut 61 is detachably connected with the snapping mechanism 62, the bottom end of the locking nut 61 is a female head, the top end of the snapping mechanism 62 is a male head, the top surface of the locking nut 61 is provided with a first fixing screw 611, the first fixing screw 611 is arranged along the axial direction, the first fixing screw 611 penetrates through the locking nut 61 and then is inserted into a concave pit on the top surface of the snapping mechanism 62, the first fixing screw 611 is in threaded connection with the locking nut 61,
the elastic clamping mechanism 62 is detachably connected with the connecting section 63, the bottom end of the elastic clamping mechanism 62 is a female head, the top end of the connecting section 63 is a male head, the outer wall of the elastic clamping mechanism 62 is provided with two latch grooves 621, the latch grooves 621 are arranged along the circumferential direction, two latch grooves 621 are arranged oppositely, a latch 622 is arranged in each latch groove 621, a pin shaft 623 is arranged between two side walls of each latch groove 621 and penetrates through each latch 622, each pin shaft 623 is rotatably connected with each latch 622 and is arranged at the bottom of each latch groove 621, a spring hole 624 is arranged on the top of each latch 622 facing the elastic clamping mechanism 62, a recess 625 is arranged at the top of each latch groove 621, a spring 626 is arranged between each latch 622 and each latch groove 626, one end of each spring is inserted into each spring hole 624, the other end of each spring 626 is inserted into each recess 625, a limit ring 627 is arranged at the edge of the top of each latch groove 621, each limit ring 627 is sleeved on the periphery of the, the bottom surface of the limiting ring 627 is a first inclined surface 628 facing the latch groove 621, the top surface of the latch 622 facing away from the latch mechanism 62 is a second inclined surface 629, the first inclined surface 628 is adapted to the second inclined surface 629 to control the ejecting distance of the top of the latch 622, the inner wall of the bottom of the latch mechanism 62 is a stepped hole structure,
the middle part of the connecting section 63 is provided with a first annular convex edge 631, the inner wall of the top end of the fifth pipe section 64 is provided with a second annular convex edge 641, the first annular convex edge 631 is positioned in the fifth pipe section 64, the periphery of the first annular convex edge 631 is in clearance fit with the inner wall of the fifth pipe section 64, a thrust bearing 632 is arranged between the top surface of the first annular convex edge 631 and the bottom surface of the second annular convex edge 641, a sealing assembly 633 is arranged between the inner wall of the first annular convex edge 631 and the outer wall of the connecting section 63,
the fifth pipe section 64 is detachably connected with the sixth pipe section 65, the bottom end of the fifth pipe section 64 is a female head, the top end of the sixth pipe section 65 is a male head, a thrust bearing 632 is arranged between the top surface of the sixth pipe section 65 and the bottom surface of the first annular convex edge 631, a first sealing groove 651 is arranged on the periphery of the bottom of the male head of the sixth pipe section 65, an O-shaped sealing ring is arranged in the first sealing groove 651,
the sixth pipe section 65 is detachably connected with the seventh pipe section 67, the bottom end of the sixth pipe section 65 is a male head, the head end of the seventh pipe section 67 is a female head, the inner wall of the head of the seventh pipe section 67 is provided with a composite bearing group 671, the composite bearing group 671 is fixed in the seventh pipe section 67 through a fourth fixing screw 672,
the seventh pipe section 67 is detachably connected with the core outer cylinder 68, the bottom end of the seventh pipe section 67 is a male head, the top end of the core outer cylinder 68 is a female head, an annular recess 681 is arranged on the inner wall of the bottom end of the core outer cylinder 68, a self-gravity valve 682 is mounted at the top of the annular recess 681, the self-gravity valve 682 comprises an annular valve seat 683 and a circular valve clack 684, the annular valve seat 683 is fixedly connected with the inner wall of the annular recess 681, the circular valve clack 684 is of a deformable structure, the edge of the circular valve clack 684 is hinged with the top edge of the annular valve seat 683, the size of a channel in the,
when the self-gravity valve 682 is opened, the circular valve flap 684 is curved, the circular valve flap 684 is stored within the annular recess 681,
the locking section is installed to annular 681 bottom, and locking section top inner wall is the shoulder hole structure, and locking section bottom outer wall is for the second that reduces from the top to the end size gradually domatic, and first domatic 562 adaptation second is domatic.
The central component comprises a central rod 71 and a core inner cylinder 81, the bottom of the central rod 71 is inserted into the core inner cylinder 81, the central rod 71 is in sliding fit with the core inner cylinder 81, the core outer cylinder 68 and the core inner cylinder 81 form a core cylinder,
the top of the card ejecting mechanism 62 is provided with a second fixing screw 711, the second fixing screw 711 is arranged along the radial direction, the second fixing screw 711 penetrates the top of the card ejecting mechanism 62 and is inserted into the central rod 71,
the core inner cylinder 81 comprises a compensation pipe section 811, a positioning pipe section 812 and a storage cylinder 813 which are sequentially arranged from top to bottom,
the compensating pipe section 811 is detachably connected with the positioning pipe section 812, the bottom end of the compensating pipe section 811 is a male head, the top end of the positioning pipe section 812 is a female head, a third fixing screw 8111 penetrates through the positioning pipe section 812 and then is screwed into the compensating pipe section 811, the compensating pipe section 811 is in sliding fit with the central rod 71,
the positioning pipe section 812 is detachably connected with the storage cylinder 813, the bottom end of the positioning pipe section 812 is a male head, the top end of the storage cylinder 813 is a female head, a gap is formed between the inner wall of the positioning pipe section 812 and the central rod 71,
the composite bearing set 671 comprises a base 6711, the base 6711 is a thrust bearing, an annular ball recess 6716 is arranged on the inner wall of the base 6711, a plurality of ball holes 8121 are arranged in the middle of the positioning pipe section 812 along the circumferential direction, the spherical roller 8122 is installed in the ball holes 8121, the protruding part of the spherical roller 8122 can slide in the ball recess 6716, the depth of the ball recess 6716 is small, when the positioning pipe section 812 is moved upwards by external force, the spherical roller 8122 can slide out of the ball recess 6716 easily,
the base 6711 comprises a top ring 6712, a middle ring 6713 and a bottom ring 6714 which are sequentially stacked, a roller 6715 is arranged between the top ring 6712 and the middle ring 6713, a roller 6715 is arranged between the middle ring 6713 and the bottom ring 6714, a ball recess 6716 is arranged on the inner wall of the middle ring 6713,
the fixed pipe section 814 is installed on the inner wall of the top of the positioning pipe section 812, the fixed pipe section 814 is sleeved on the periphery of the central rod 71, the key 8142 is spherical, the fixed pipe section 814 is provided with a second through hole 8141 for adapting the key 8142, the diameter of the key 8142 is larger than the length of the second through hole 8141, the inner wall of the positioning pipe section 812 is provided with a first key groove 8143, the first key groove 8143 is adapted to the key 8142, the outer wall of the bottom of the central rod 71 is provided with a second key groove 8144, the second key groove 8144 is adapted,
before coring, the key 8142 is positioned in the second through hole 8141 and the first key slot 8143, the fixed pipe section 814 is fixedly connected with the positioning pipe section 812 through the key 8142,
when coring, the central rod 71 moves upwards, the key 8142 is disengaged from the first key slot 8143, then the key 8142 enters the second key slot 8144, the fixed pipe section 814 is fixedly connected with the central rod 71 through the key 8142, the central rod 71 drives the fixed pipe section 814 to move upwards, the fixed pipe section 814 abuts against the bottom surface of the compensation pipe section 811, the central rod 71 further drives the core inner cylinder 81 to move upwards,
the inner wall edge of the bottom surface of the positioning pipe section 812 is a third inclined surface 8123 with the diameter gradually increasing from top to bottom,
the bottom end of the positioning pipe section 812 is provided with an alarm sensor which is a pressure-sensitive sensor,
the inner wall of the bottom of the storage cylinder 813 is provided with a plurality of anti-skid convex ribs 8131 along the axial direction, and the anti-skid convex ribs 8131 are of an annular structure.
The bottom end of the central rod 71 is fixedly connected with a piston 712, the periphery of the bottom end of the central rod 71 is provided with a plurality of second sealing grooves 713, an O-shaped sealing ring is arranged in each second sealing groove 713, the O-shaped sealing ring at the bottom end of the central rod 71 is used for being in sealing connection with the inner wall of the positioning pipe section 812, the central rod 71 and the piston 712 are integrally manufactured, the coiling device 1 provides a continuous guide pipe 9 for the transfer device 2, the continuous guide pipe 9 penetrates through the drill rod 4 and is connected with,
the outer edge of the top surface of the piston 712 is a fourth inclined surface 714 with a diameter gradually increasing from top to bottom, the third inclined surface 8123 is matched with the fourth inclined surface 714, the piston 712 is connected with the inner wall of the storage cylinder 813 in a sliding manner, the outer periphery of the top of the piston 712 is provided with a third sealing groove 715, a sealing ring is arranged in the third sealing groove 715,
a pressure maintaining controller is arranged in the piston 712, the pressure maintaining controller comprises a pressure maintaining cylinder 1501, the pressure maintaining cylinder 1501 is vertically arranged, a pressure maintaining piston 1502 is arranged in the pressure maintaining cylinder 1501, the pressure maintaining piston is in sliding fit with the inner wall of the pressure maintaining cylinder, the pressure maintaining piston 1502 divides the pressure maintaining cylinder 1501 into an upper chamber 1503 and a lower chamber 1504 which are mutually isolated, the lower chamber 1504 is communicated with the storage cylinder 813, the upper chamber 1503 is filled with gas such as nitrogen and the like,
the central rod 71 is a hollow structure, a measurement and control assembly is arranged in the piston 712, the measurement and control assembly comprises a temperature sensor 101 and a pressure sensor 102 which are arranged along the axial direction, the pressure sensor extends into the storage cylinder 813, a pressure sensor 103 is arranged in the recess 625, the pressure sensor 103 is a key sensor or a capacitance sensor, the temperature sensor 101, the pressure sensor 102 and the pressure sensor 103 are connected with a processing terminal through a signal cable 104, the signal cable 104 is positioned in the central rod 71, and the signal cable 104 extends from the central rod to the continuous conduit 9 and then is connected with the processing terminal from the ground.
The internal blowout prevention joint comprises a valve pipe section 1401 and a connecting pipe section 1402, wherein the valve pipe section 1401 is detachably connected with the connecting pipe section 1402, the bottom end of the valve pipe section 1401 is a male head, the top end of the connecting pipe section 1402 is a female head,
the top of the connecting pipe section 1402 is a female section 1403, the bottom of the connecting pipe section 1402 is an outlet section 1404, the inner diameter of the female section 1403 is larger than that of the outlet section 1404, the inner diameter of the outlet section 1404 is larger than that of the inner pipe assembly,
the bottom of the valve pipe section 1401 is a male head section 1405, the bottom end of the valve pipe section 1401 is a blowout preventer valve seat 1406, the bottom surface of the valve pipe section 1401 is provided with a blowout preventer cover 1407, the edge of the blowout preventer cover 1407 is rotatably connected with the edge of the bottom surface of the valve pipe section 1401, the bottom surface of the blowout preventer cover 1407 is provided with a torsion spring 1408, one end of the torsion spring 1408 is connected with the blowout preventer cover 1407, the other end of the torsion spring 1408 is connected with the inner wall of the female head section 1403, the sealing surface of the blowout preventer valve seat 1406 is a fifth inclined surface 1410 with gradually increasing diameter from top to bottom, the sealing surface of the blowout,
in order to better secure the torsion spring 1408 to the lubricator cap 1407, a cylindrical pin 1409 is provided, the cylindrical pin 1409 is provided on the bottom surface of the lubricator cap 1407, the cylindrical pin 1409 penetrates through the lubricator cap 1407 and the middle of the torsion spring 1408,
the sum of the length of the male section 1405 and the diameter of the blowout preventer cap 1407 is less than or equal to the length of the female section 1403, when the present invention is in an open state, i.e., when the blowout preventer cap 1407 is in an upright state, the blowout preventer cap 1407 is still within the female section 1403,
the lubricator cap 1407 may be a deformable structure, and when the lubricator cap 1407 is pushed open by the inner pipe assembly, the lubricator cap 1407 may be curved to abut against the inner wall of the female head 1403, so that the device structure is more compact.
In actual use, the continuous conduit 9 is continuously lowered through the continuous conduit operation equipment, so that the inner pipe assembly is lowered in the drill pipe 4, when the inner pipe assembly reaches the corresponding position of the outer pipe assembly, the latch 622 of the elastic clamping mechanism 62 enters the elastic clamping chamber 511, the inner pipe assembly is lowered to the specified position, the elastic clamping mechanism 62 is located on the suspension ring 512, the spring 626 pressing on the pressure sensor 103 is loosened, the ground receives the in-place alarm signal of the pressure sensor 103,
in the working process, the continuous guide pipe 9 is connected with the central rod 71, for coal mine coring, the used continuous guide pipe 9 has shorter length, the continuous guide pipe 9 has good torsion resistance,
meanwhile, the invention uses the composite bearing group 671, and the spherical roller 8122 is arranged between the composite bearing group 671 and the positioning pipe section 812, which can also prevent the rotation of the core inner cylinder 81,
the invention is also provided with a connecting section 63 which can transmit the rotation of the outer tube assembly to the core outer tube 68, reduce the influence of the outer tube assembly on the core inner tube 81, further prevent the core inner tube 81 from rotating,
the center assembly and the inner tube assembly are provided with two sets of thrust bearings 632, and when the snapping mechanism 62 rotates, the two sets of thrust bearings 632 act to prevent the core barrel from rotating.
Before coring, the upper chamber 1503 is filled with nitrogen, the holding piston 1502 is located at the bottom of the holding cylinder 1501,
when coring, the central component is lifted, the core enters the core barrel, the piston 712 is lifted to reduce the resistance to the core in the core barrel, meanwhile, the lower chamber 1504 is filled with gas, the pressure maintaining piston 1502 moves upwards after receiving the gas pressure in the environment, the gas in the upper chamber 1503 is compressed, the temperature sensor 101 and the pressure sensor 102 in the piston 712 can be used for monitoring the data of the sample in the storage barrel in real time,
after coring, the core is filled in the core inner cylinder 81, the piston 712 of the central rod 71 moves to the positioning pipe section 812, the alarm sensor between the core inner cylinder and the positioning pipe section 812 sends out an alarm signal to indicate that the piston 712 is in contact with the positioning pipe section 812, coring is completed, the gravity valve 682 is closed, the core taking cylinder forms a closed structure, if gas leakage occurs, the gas in the upper chamber 1503 expands, the gas in the lower chamber 1504 is filled in the core taking cylinder, pressure loss is reduced, and a pressure maintaining effect is achieved.
The main coring workflow comprises the following steps:
s1, installing continuous pipe operation equipment;
s2, connecting the coring bit 56 with the outer pipe to assemble the outer pipe assembly, connecting the outer pipe assembly and the drill rod 4 by using the related equipment of the tunnel drilling machine, and gradually lowering the outer pipe assembly from the ground to the coring position;
s3, after the inner pipe assembly is assembled on the ground, connecting the continuous guide pipe 9 with the central rod 71 of the inner pipe assembly through a quick connector;
s4, continuously lowering the continuous guide pipe 9 through the continuous guide pipe operation equipment, thereby lowering the inner pipe assembly in the drill pipe 4, when the inner pipe assembly reaches the corresponding position of the outer pipe assembly, after the ground receives a sensor in-place alarm signal, the latch 622 of the elastic clamping mechanism 62 enters the elastic clamping chamber 511, the inner pipe assembly is lowered to the designated position, and the elastic clamping mechanism 62 is located on the suspension ring 512;
s5, starting a ground drilling machine, rotating the rotary table 1204 and performing pressurized drilling, wherein the inner pipe assembly and the outer pipe assembly are matched to perform downward drilling to start coring operation, and the ground blowout prevention box 1223 realizes sealing of a wellhead of the drilling tool;
s6, in the coring operation process, the continuous conduit operation equipment stops lowering the continuous conduit 9, the position of the continuous conduit 9 in the drill rod 4 is kept unchanged, the central component is kept static, and the core enters the barrel along with the downward movement of the inner pipe component and the outer pipe assembly;
in the operation process, under the working condition that the external drilling tool rotates, the core inner cylinder 81 is kept static by the combined action of the multiple anti-rotation mechanisms and the continuous conduit 9, so that the disturbance to the core is reduced; meanwhile, the piston 712 has a suction effect on the core, so that the resistance of the core entering the barrel is reduced;
s7, after coring is completed, the core is filled in the core inner cylinder 81, the piston 712 of the central rod 71 moves to the position of the positioning pipe section 812, and a sensor between the two sends out an alarm signal to display that coring is completed;
s8, starting continuous conduit operation equipment, lifting the continuous conduit 9, pulling the core barrel upwards through the continuous conduit 9 through the central rod 71, clamping the core by the anti-skid convex ridge 8131 at the end part of the core inner barrel 81, lifting the core into the pressure maintaining cabin, and closing the circular valve clack 684 of the gravity valve 682 at the lower end of the pressure maintaining cabin;
s9, continuously lifting the continuous guide pipe 9, when the lifting force is larger than F, the elastic clamping mechanism 62 contracts, the inner pipe assembly is lifted out of the outer pipe assembly, and then the continuous guide pipe 9 is quickly lifted;
s10, an inner blowout prevention joint is arranged at the lower part of the drill rod 4, and in the process of lifting the inner pipe assembly, after passing through the inner blowout prevention joint, the blowout prevention valve cover 1407 is closed to separate the hole bottom from the hollow drill rod 4, so that gas in the hole bottom environment is prevented from diffusing outwards;
s11, after the inner pipe assembly is lifted out of the drill rod 4 through the continuous guide pipe 9, the quick connector at the tail end of the continuous guide pipe 9 is disassembled, the inner pipe assembly is taken down for disassembly, the fidelity cabin part is placed into the transfer cabin, and the upper hanging part is used for the second time.
Wherein step S1 includes the following substeps:
s101, conveying the transmission device 2 to a coring place, and conveying the coiling device 1 to the rear of the transmission device 2;
s102, erecting a hydraulic cylinder support 1104 by using a hydraulic cylinder 1205 of the drilling machine, and erecting an injection head 1202 together;
s103, the turnover device is driven, and the injection head 1202 becomes a horizontal state.
Step S4 includes the following substeps:
s401, driving the turnover device, and enabling the injection head 1202 to be in a vertical state;
s402, the folding hydraulic rod 1208 acts, the plurality of arch beams 1224 extend, and the guide arch 1201 is lifted;
s403, the continuous conduit 9 extends into the guide arch 1201 from the reel device 1 through the pipe discharging device assembly 1103;
s404, the continuous catheter 9 extends into the injection head 1202 from the guide arch 1201, the conveying chain 1211 moves in the injection head 1202, the clamping block 1214 on the conveying chain 1211 is clamped outside the continuous catheter 9, the clamping block 1214 moves along with the conveying chain 1211, the clamping block 1214 clamped on the periphery of the continuous catheter 9 clamps the continuous catheter 9 under the action of the hydraulic clamping mechanism 1218, and the continuous catheter 9 moves downwards;
s405, assembling an inner pipe assembly, and connecting the continuous guide pipe 9 with a central rod of the inner pipe assembly through a quick connector.
The present invention is capable of other embodiments, and various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides an automatic gallery pressurize of reporting to police is got core and is equipped which characterized in that: comprises continuous conduit operation equipment and a coring device;
the continuous conduit operation equipment comprises a transfer device, wherein the transfer device comprises an injection head and a tunnel drilling machine;
the coring device comprises an inner pipe assembly and an outer pipe assembly, the outer pipe assembly is connected with the tunnel drilling machine through a drill rod, the inner pipe assembly is connected with a continuous conduit, an injection head is used for lowering/lifting the continuous conduit, the inner pipe assembly and the outer pipe assembly are connected in a clamping way,
the inner tube assembly comprises an inner tube assembly and a center assembly, the center assembly comprises a center rod, the top end of the center rod is connected with a continuous guide tube, the continuous guide tube and the center rod are both of hollow structures, cables are arranged in the continuous guide tube and the center rod, bottom surface equipment provides power and/or signals for electrical equipment in the coring device through the cables,
the electrical equipment comprises a sensor, the sensor is used for monitoring the total clamping state of the inner pipe assembly and the outer pipe, and the sensor is connected with the processing terminal through a cable.
2. The coring apparatus of claim 1, wherein: the inner pipe assembly comprises a core outer barrel, a self-gravity valve is arranged at the bottom of the core outer barrel and comprises an annular valve seat and a circular valve clack, the edge of the circular valve clack is hinged to the edge of the top surface of the annular valve seat, and the circular valve clack is of an elastic structure.
3. The coring apparatus of claim 2, wherein: the bottom end of the central rod is fixedly connected with a piston, a pressure maintaining controller is arranged in the piston,
the pressure maintaining controller comprises a pressure maintaining cylinder, the pressure maintaining cylinder is vertically arranged, a pressure maintaining piston is arranged in the pressure maintaining cylinder, the pressure maintaining piston is in sliding fit with the inner wall of the pressure maintaining cylinder, the pressure maintaining piston divides the pressure maintaining cylinder into an upper cavity and a lower cavity, the lower cavity is communicated with the bottom surface of the piston, and gas is filled in the upper cavity.
4. The coring apparatus of claim 1, wherein: a composite bearing is arranged between the inner pipe component and the central component, the central component comprises a positioning pipe section,
the composite bearing comprises a base, wherein the base is in a thrust bearing form, the base is arranged in an inner pipe assembly, the inner wall of the base is provided with an annular ball recess, the middle of a positioning pipe section is provided with a plurality of ball holes along the circumferential direction, a spherical roller is arranged in the ball holes, and the convex part of the spherical roller is matched with the ball recess.
5. The coring apparatus of claim 4, wherein: the central component is provided with a first annular convex edge, a thrust bearing is arranged between the first annular convex edge and the inner pipe component, and the first annular convex edge is positioned between the two thrust bearings.
6. The coring apparatus of claim 1, wherein: the top of the inner pipe component is provided with an elastic clamping mechanism, the inner wall of the top of the outer pipe assembly is provided with an elastic clamping chamber, the outer wall of the elastic clamping mechanism is provided with a latch groove, a latch is arranged in the latch groove, the bottom of the latch is rotationally connected with the inner wall of the latch groove, a spring is arranged between the top of the latch and the latch groove, the latch is matched with the elastic clamping chamber,
the sensor includes the pressure sensor, and the pressure sensor is located in the bullet card mechanism, and the pressure sensor passes through signal cable connection processing terminal, and the signal cable is installed in continuous pipe and central pole.
7. The coring apparatus of claim 1, wherein: the central component further comprises a core inner barrel, the bottom of the central rod is inserted into the core inner barrel, the bottom end of the central rod is provided with a temperature sensor and a pressure sensor, the processing terminal is connected with the temperature sensor and the pressure sensor through signal cables, and the signal cables are installed in the continuous guide pipe and the central rod.
8. The coring apparatus of claim 1, wherein: the continuous conduit operation equipment also comprises a reel device, wherein the reel device comprises a collector ring and a reel, a cable in the continuous conduit is electrically connected with the collector ring, the reel is arranged on a reel frame, a pipe arrangement device assembly is arranged on the reel frame and used for controlling the sequence of the reels of the continuous conduit, and the reel is driven by a reel motor;
the pipe arranging device assembly comprises a support and a torque limiter, a lifting hydraulic rod is arranged between the support and a winding drum frame, a bidirectional screw rod is arranged on the support, a guide device is arranged on the bidirectional screw rod, a mechanical counter and a rotating system are arranged in the guide device, the rotating system comprises a plurality of conveying wheels, and a lifting oil cylinder is arranged between the guide device and the bidirectional screw rod.
9. The coring apparatus of claim 4, wherein: the bottom end of the positioning pipe section is provided with an alarm sensor which is a pressure-sensitive sensor.
10. The coring apparatus of claim 1, wherein: the injection head comprises two conveying mechanisms arranged side by side, and the continuous conduit is positioned between the two conveying mechanisms and is clamped and transferred by the two conveying mechanisms.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010346387.1A CN111502579A (en) | 2020-04-27 | 2020-04-27 | Automatic tunnel pressurize of reporting to police is got core and is equipped |
| PCT/CN2021/073844 WO2021218252A1 (en) | 2020-04-27 | 2021-01-26 | Tunnel pressure coring equipment having automatic alarm function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010346387.1A CN111502579A (en) | 2020-04-27 | 2020-04-27 | Automatic tunnel pressurize of reporting to police is got core and is equipped |
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| WO (1) | WO2021218252A1 (en) |
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| CN113187446A (en) * | 2021-05-08 | 2021-07-30 | 广州海洋地质调查局 | Sand control screen pipe capable of measuring compaction settlement stress in hydrate pilot production process |
| WO2021218252A1 (en) * | 2020-04-27 | 2021-11-04 | 四川大学 | Tunnel pressure coring equipment having automatic alarm function |
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| CN115478800B (en) * | 2022-09-19 | 2023-09-19 | 中煤科工集团重庆研究院有限公司 | Coal seam fixed-point quick-freezing coring device and coring method |
| CN116677330B (en) * | 2023-07-31 | 2023-12-01 | 山东科瑞油气装备有限公司 | Quick working vehicle and working method for working tube |
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