CN117345149A - Anti-blowout collection structure for high-capacity three-stage extraction orifice - Google Patents

Anti-blowout collection structure for high-capacity three-stage extraction orifice Download PDF

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Publication number
CN117345149A
CN117345149A CN202311472896.9A CN202311472896A CN117345149A CN 117345149 A CN117345149 A CN 117345149A CN 202311472896 A CN202311472896 A CN 202311472896A CN 117345149 A CN117345149 A CN 117345149A
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CN
China
Prior art keywords
blowout prevention
wall
interface
negative pressure
prevention box
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311472896.9A
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Chinese (zh)
Inventor
马鹏磊
马广兴
段李宏
戴磊
王勇
张洋
李亚辉
于成明
张长友
寇礼奎
高俊
吴启涛
杨斌
刘圣洁
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Yongcheng Yongan Mine Safety Technology Engineering Co ltd
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Yongcheng Yongan Mine Safety Technology Engineering Co ltd
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Application filed by Yongcheng Yongan Mine Safety Technology Engineering Co ltd filed Critical Yongcheng Yongan Mine Safety Technology Engineering Co ltd
Priority to CN202311472896.9A priority Critical patent/CN117345149A/en
Publication of CN117345149A publication Critical patent/CN117345149A/en
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof
    • E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Pipe Accessories (AREA)

Abstract

The invention relates to the technical field of blowout prevention for a drainage orifice, and discloses a blowout prevention collection structure for a high-capacity three-stage drainage orifice. By arranging the rubber sealing ring, the connecting component is tightly attached to the drill rod through the rubber sealing ring, so that the effect of preventing gas in the drill hole from overflowing is achieved; the connecting assembly can firmly seal and fix the rubber sealing ring, prevent the rubber sealing ring from moving back and forth, and can take out and replace the rubber sealing ring by rotating and detaching the male head after the rubber sealing ring is worn.

Description

Anti-blowout collection structure for high-capacity three-stage extraction orifice
Technical Field
The invention relates to the technical field of blowout prevention for extraction orifices, in particular to a blowout prevention collection structure for a large-capacity three-stage extraction orifice.
Background
The phenomenon of jet hole and toxic and harmful gas emission easily occurs in the gas extraction drilling construction process, coal, rock drilling cuttings and gas are ejected out of the drilling holes at a high speed, threat is caused to site constructors, and gas emission possibly causes gas overrun. The long coal hole construction process of directional drilling site sees the coal section longer, and coal powder granule extremely easily gathers at coal rock juncture after the coal section collapses, blocks up gas, coal, water and returns out the passageway and cause the hole that holds down, can spout a large amount of gas, cinder and water mixture instantaneously after the passageway mediation, and light then influences the efficiency of construction, causes the gas unusual, and heavy then probably causes constructor injury, exists great security risk.
At present, the orifice blowout preventer of the gas extraction drilling site has the common defects of small volume, poor sealing performance, weak blowout preventing capability and the like, and cannot cope with the phenomena of directional long coal orifice holding and spray orifice.
Disclosure of Invention
The invention provides a blowout prevention collecting structure for a large-capacity three-stage extraction orifice, which solves the problems set forth in the background art.
The invention provides the following technical scheme: the utility model provides a tertiary collection structure that prevents spouting of taking out drill way of large capacity, prevents spouting the case including the one-level, one end outer wall fixed mounting of one-level prevents spouting the case has negative pressure to take out the first joint, one-level prevents spouting the other end outer wall fixed mounting of case and has negative pressure to take out the second joint, one-level prevents spouting the middle part outer wall fixed mounting of case and has the gasbag interface, one-level prevents spouting the case and is close to one side outer wall fixed mounting of negative pressure to take out the first joint and have the steel pipe, one-level is kept away from one side outer wall fixed mounting of one-level preventing spouting the case to the steel pipe has flange one, one-level is kept away from one side of steel pipe to flange one is provided with flange two, one-level is kept away from one-level flange one side outer wall fixed mounting of flange one and is equipped with the pneumatic tube, pneumatic tube is equipped with pneumatic tube in the fixed mounting of pneumatic tube in the pneumatic tube, pneumatic tube is close to one-level inner wall fixed mounting of one-level preventing spouting the case has the slag notch in one-level preventing the steel pipe, one-level preventing spouting the case is kept away from one side outer wall fixed mounting of steel pipe has the coupling assembly, the inner wall threaded connection of gasbag interface has the bars, one-level preventing the air bag is kept away from one side of the other side is kept away from the side of the steel pipe, one side is kept away from the air-level side is provided with the air bag.
As a preferable technical scheme of the invention, the connecting component comprises a female seat, a clamping ring is fixedly assembled at the bottom of the inner wall of one end of the female seat, which is close to the steel pipe, a rubber sealing ring is arranged on the inner wall of the female seat, and a male head and a threaded end cover are connected with the inner wall of the female seat in a threaded manner.
As a preferable technical scheme of the invention, the number of the connecting components is two, one connecting component is arranged between the secondary blowout prevention box and the primary blowout prevention box, and the other connecting component is arranged on the outer wall of one end of the secondary blowout prevention box far away from the primary blowout prevention box.
As a preferable technical scheme of the invention, the female seat is fixedly assembled with the outer wall of the primary blowout prevention box in a group of connecting components between the secondary blowout prevention box and the primary blowout prevention box, the male head is fixedly assembled with the outer wall of the secondary blowout prevention box, and the secondary blowout prevention box and the primary blowout prevention box are in threaded connection through the male head and the female seat;
the female seat is fixedly assembled with the outer wall of one end of the secondary blowout prevention box, which is far away from the primary blowout prevention box, and the threaded end cover is in threaded connection with the inner wall of the female seat.
As a preferable technical scheme of the invention, the primary blowout prevention box has the diameter of 500mm, the length of 700mm and the capacity of 0.14m 3 The diameter of the flange I is 159mm; the diameter of the secondary blowout prevention box is 500mm, the length is 350mm, and the capacity is 0.068m 3 。
As a preferable technical scheme of the invention, the gas collecting air bag is tied up by using a hose clamp and is fixed at an air bag interface, and the volume of the gas collecting air bag reaches 1.3m 3 During normal drilling construction, the gas collection air bag is in a negative pressure continuous pumping state, and overflowed gas in the drilling hole is pumped away through a negative pressure pumping interface I, a negative pressure pumping interface II and a negative pressure pumping interface III, so that the gas collection air bag is in a flat suction state.
As a preferable technical scheme of the invention, the air bag interface grating comprises a grating main body, wherein partition plates are fixedly assembled on the inner walls of the two sides of the grating main body, mounting grooves are formed in the inner walls of the partition plates, and filtering columns are fixedly assembled on the inner walls of the mounting grooves;
the length of the filtering column is one half of that of the partition board, and the grating main body is in threaded connection with the inner wall of the air bag interface.
As a preferable technical scheme of the invention, the number of the slag discharging holes is two, one slag discharging hole is arranged on the outer wall of the primary blowout prevention box, the other slag discharging hole is fixedly assembled on the outer wall of the secondary blowout prevention box, and the flange I and the flange II are fixedly assembled through bolts.
As a preferable technical scheme of the invention, the negative pressure extraction interface I and the negative pressure extraction interface II are symmetrically arranged by taking the air bag interface as a center, and the slag discharging port is arranged in the opposite direction of the negative pressure extraction interface I, the negative pressure extraction interface II and the air bag interface.
The invention has the following beneficial effects:
1. according to the blowout prevention collecting structure for the large-capacity three-stage extraction hole, the connecting assembly is tightly attached to the drill rod through the rubber sealing ring by arranging the rubber sealing ring, so that the effect of preventing gas in a drilled hole from overflowing is achieved; the connecting assembly can firmly seal and fix the rubber sealing ring, prevent the rubber sealing ring from moving back and forth, and can take out and replace the rubber sealing ring by rotating and detaching the male head after the rubber sealing ring is worn.
2. This tertiary drainage drill way of large capacity is with preventing spouting collection structure through setting up gas collection gasbag, when making taking place the orifice phenomenon in the drilling, a large amount of gas blowout suddenly, and the gas that overflows can not be held to one-level blowout prevention case, second grade blowout prevention case, and when gas has no department to go, can jack up the gas collection gasbag and be full of, reaches to collect the gas, prevents that the gas from overflowing to the effect in the tunnel.
3. This tertiary extraction drill way of large capacity is with preventing spouting collection structure, when the length through the filter column is the half of baffle, makes when taking place the orifice phenomenon in the drilling, when a large amount of gas and residue spout suddenly, its residue when flowing to gasbag interface barrier, its residue first time can be contacted with the filter column to realize the effect of isolation, and through setting up the baffle, make little residue accessible baffle filter, in order to solve gas and carry the residue blowout, lead to the problem that the residue pierces gas collection gasbag.
4. The high-capacity three-stage extraction hole opening adopts a blowout prevention collecting structure, an air pressure pipe is placed in a drill hole, the air pressure pipe is sealed with the drill hole through a sealing material or other modes, then a drill rod penetrates through equipment through a connecting component, and a seal is formed between the drill rod and the equipment through a rubber sealing ring;
in the method, if the splash problem occurs, the gas exhausted from the drilling hole can be transmitted to the inner cavity of the air pressure bin through the circulation groove, so that the air pressure pipe can be expanded, and the stability of the connection between the equipment and the drilling hole can be improved by utilizing the friction between the air pressure pipe and the expansion of the drilling hole.
5. The gas accommodating space of the device reaches 75 times of a traditional orifice blowout preventer, the negative pressure extraction capacity is 3 times of that of the traditional orifice blowout preventer, the blowout prevention sealing effect also realizes qualitative leap, the precedent of a gas prevention and control technology in the coal industry is opened, the directional drilling orifice prevention capacity and the emergency treatment capacity are greatly improved, and the directional drilling machine construction efficiency is improved.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic diagram of a negative pressure extraction interface II according to the present invention;
FIG. 3 is a schematic diagram of a secondary blowout preventer of the present invention;
FIG. 4 is a schematic view of a connecting assembly according to the present invention;
FIG. 5 is a schematic view of the pneumatic chamber structure of the present invention;
FIG. 6 is a schematic view of the gas collecting bag according to the present invention;
FIG. 7 is a schematic view of the air bag interface grille structure of the present invention.
In the figure: 1. a first-stage blowout prevention box; 2. a negative pressure extraction joint I; 3. a negative pressure extraction joint II; 4. an air bag interface; 5. a steel pipe; 6. a first flange; 7. a second flange; 8. fastening a tube; 9. an air pressure pipe; 10. a flow channel; 11. an air pressure bin; 12. a slag discharge port; 13. a connection assembly; 14. a gas collection airbag; 15. an air bag interface grating; 16. a secondary blowout prevention box; 17. a negative pressure extraction interface III;
1301. a female seat; 1302. a clamping ring is fixedly assembled; 1303. a rubber seal ring; 1304. a male; 1305. a threaded end cap;
1501. a grill body; 1502. a partition plate; 1503. a mounting groove; 1504. and (3) a filtering column.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-7, a high-capacity three-stage extraction orifice blowout prevention collection structure comprises a first-stage blowout prevention box 1, wherein a negative pressure extraction port I2 is fixedly assembled on the outer wall of one end of the first-stage blowout prevention box 1, a negative pressure extraction port II 3 is fixedly assembled on the outer wall of the other end of the first-stage blowout prevention box 1, an air bag port 4 is fixedly assembled on the outer wall of the middle part of the first-stage blowout prevention box 1, a steel pipe 5 is fixedly assembled on the outer wall of one side of the first-stage blowout prevention box 1, which is close to the negative pressure extraction port I2, a flange I6 is fixedly assembled on the outer wall of one side of the steel pipe 5, which is far from the first-stage blowout prevention box 1, a flange II 7 is arranged on one side of the flange I6, which is far from the flange I7, a fastening pipe 8 is fixedly assembled on the outer wall of one side, the outer wall fixed assembly of fastening pipe 8 has pneumatic tube 9, pneumatic bin 11 has been seted up to the inner wall of one side that pneumatic tube 9 is close to fastening pipe 8, circulation groove 10 has been seted up to the outer wall of one end that fastening pipe 8 is close to flange two 7, one end outer wall fixed assembly that steel pipe 5 was kept away from to one-level blowout preventer 1 has slag tap 12, one side outer wall fixed assembly that steel pipe 5 was kept away from to one-level blowout preventer 1 has coupling assembling 13, the inner wall threaded connection of gasbag interface 4 has gasbag interface grating 15, the outer edge of gasbag interface 4 is provided with gas collection gasbag 14, one side that steel pipe 5 was kept away from to one-level blowout preventer 1 is provided with second blowout preventer 16, the outer wall fixed assembly of second blowout preventer 16 has negative pressure extraction interface three 17.
In an alternative embodiment: the connecting assembly 13 comprises a female seat 1301, a clamping ring 1302 is fixedly assembled at the bottom of the inner wall of one end of the female seat 1301, which is close to the steel pipe 5, a rubber sealing ring 1303 is arranged on the inner wall of the female seat 1301, and a male head 1304 and a threaded end cover 1305 are connected with the inner wall of the female seat 1301 in a threaded mode.
In the structure, the connecting component 13 is tightly attached to the drill rod through the rubber sealing ring 1303 by arranging the rubber sealing ring 1303, so that the effect of preventing gas in the drill hole from overflowing is achieved; the connecting component 13 can firmly seal and fix the rubber sealing ring 1303, prevent the rubber sealing ring 1303 from moving back and forth, and can take out and replace the rubber sealing ring 1303 by rotating and detaching the male head 1304 after the rubber sealing ring 1303 is worn.
In an alternative embodiment: the number of the connecting components 13 is two, one connecting component 13 is arranged between the secondary blowout prevention box 16 and the primary blowout prevention box 1, and the other connecting component 13 is arranged on the outer wall of one end of the secondary blowout prevention box 16 far away from the primary blowout prevention box 1.
In an alternative embodiment: in a group of connecting components 13 between the secondary blowout prevention box 16 and the primary blowout prevention box 1, a female seat 1301 of the connecting components is fixedly assembled with the outer wall of the primary blowout prevention box 1, a male head 1304 is fixedly assembled with the outer wall of the secondary blowout prevention box 16, and the secondary blowout prevention box 16 and the primary blowout prevention box 1 are in threaded connection with the female seat 1301 through the male head 1304;
in the group of connecting components 13 located on the outer wall of the end, far away from the primary blowout prevention box 1, of the secondary blowout prevention box 16, the outer wall of the end, far away from the primary blowout prevention box 1, of the secondary blowout prevention box 16 is fixedly assembled, and the threaded end cover 1305 is in threaded connection with the inner wall of the female seat 1301.
In the above structure, the connection between the primary blowout prevention box 1 and the secondary blowout prevention box 16 is realized through the connection component 13, and the rubber sealing ring 1303 is arranged, so that when the device is used, the drill rod of the device penetrates through the device through the female seat 1301, and the drill rod of the device can be in sealing connection with the device main body through the rubber sealing ring 1303;
specifically, when the device is in use, a person places the air pressure pipe 9 in a drill hole, seals the air pressure pipe 9 with the drill hole through a sealing material or other modes, then penetrates the drill rod through the device through the connecting component 13, and seals the drill rod with the device through the rubber sealing ring 1303;
in this method, if a splash problem occurs, the gas discharged from the borehole can be transferred to the inner cavity of the pneumatic chamber 11 through the flow channel 10, so that the pneumatic tube 9 is expanded, and the stability of the connection between the device and the borehole is increased by using the friction between the pneumatic tube 9 and the borehole expansion.
Another method is as follows: when in use, the drill rod is directly connected with the flange of the drilling hole opening through the first flange 6 by bolts, then the drill rod penetrates through the equipment through the connecting component 13, and the seal is formed between the drill rod and the equipment through the rubber sealing ring 1303;
in this way, if a splash problem occurs, the gas exhausted from the bore holes can be transferred to the inner cavities of the primary and secondary blowout preventers 1 and 16, respectively, through the connection assembly 13.
In an alternative embodiment: the diameter of the first-stage blowout prevention box 1 is 500mm, the length is 700mm, and the capacity is 0.14m 3 The diameter of the flange I6 is 159mm; the diameter of the secondary blowout prevention box 16 is 500mm, the length is 350mm, and the capacity is 0.068m 3 。
In the structure, the whole gas capacity of the device reaches 1.5m 3 The gas capacity of the gas drainage drill site is 75 times that of the conventional orifice blowout preventer, and the gas prevention capability of the gas drainage drill site is greatly improved.
In an alternative embodiment: the gas collecting air bag 14 is tied up by using a throat hoop and fixed at the air bag interface 4, and the volume of the gas collecting air bag 14 reaches 1.3m 3 During normal drilling construction, the gas collection air bag 14 is in a negative pressure continuous pumping state, gas overflowed from the drill hole is pumped away through the negative pressure pumping interface I2, the negative pressure pumping interface II 3 and the negative pressure pumping interface III 17, and the gas collection air bag 14 is in a flat suction state.
In the above structure, when the gas collecting air bag 14 is arranged to cause the phenomenon of spraying holes in the drill hole, a large amount of gas is sprayed suddenly, the primary blowout prevention box 1 and the secondary blowout prevention box 16 cannot contain overflowed gas, and when no gas can go, the gas collecting air bag 14 is pushed open and filled up, so that the effects of collecting the gas and preventing the gas from overflowing into a roadway are achieved.
In an alternative embodiment: the air bag interface grating 15 comprises a grating main body 1501, partition plates 1502 are fixedly arranged on the inner walls of two sides of the grating main body 1501, mounting grooves 1503 are formed in the inner walls of the partition plates 1502, and filtering columns 1504 are fixedly arranged on the inner walls of the mounting grooves 1503;
the length of the filter column 1504 is one half of the partition 1502 and the grill body 1501 is threaded onto the inner wall of the air bag port 4.
In the above structure, when the length of the filtering column 1504 is half of the partition 1502 and a large amount of gas and residues are suddenly sprayed out when the spraying hole is formed in the drilling hole, the residues can be contacted with the filtering column 1504 at the first time when the residues flow to the air bag interface grating 15, so that the isolation effect is realized, and small residues can be filtered through the partition 1502 by arranging the partition 1502, so that the problem that the residues puncture the gas collecting air bag 14 due to the spraying of the residues carried by gas is solved.
In an alternative embodiment: the number of the slag discharging ports 12 is two, one slag discharging port 12 is arranged on the outer wall of the primary blowout prevention box 1, the other slag discharging port 12 is fixedly assembled on the outer wall of the secondary blowout prevention box 16, and the flange I6 and the flange II 7 are fixedly assembled through bolts.
In an alternative embodiment: the first negative pressure extraction port 2 and the second negative pressure extraction port 3 are symmetrically arranged by taking the air bag port 4 as a center, and the slag discharging port 12 is arranged in the opposite directions of the first negative pressure extraction port 2, the second negative pressure extraction port 3 and the air bag port 4.
Working principle: the first-stage blowout prevention box 1 and the second-stage blowout prevention box 16 are connected through the connecting component 13, and the rubber sealing rings 1303 are arranged, so that when the device is used, a drill rod of the device penetrates through the device through the female seat 1301, and the drill rod of the device can be in sealing connection with the device main body through the rubber sealing rings 1303;
specifically, when the device is in use, a person places the air pressure pipe 9 in a drill hole, seals the air pressure pipe 9 with the drill hole through a sealing material or other modes, then penetrates the drill rod through the device through the connecting component 13, and seals the drill rod with the device through the rubber sealing ring 1303;
in the method, if the splash problem occurs, the gas exhausted from the drill hole can be transmitted to the inner cavity of the pneumatic bin 11 through the circulation groove 10, so that the pneumatic tube 9 can be expanded, and the stability of the connection between the equipment and the drill hole can be improved by utilizing the friction between the pneumatic tube 9 and the expansion of the drill hole;
another method is as follows: when in use, the drill rod is directly connected with the flange of the drilling hole opening through the first flange 6 by bolts, then the drill rod penetrates through the equipment through the connecting component 13, and the seal is formed between the drill rod and the equipment through the rubber sealing ring 1303;
in this method, if a splash problem occurs, the gas exhausted from the drill hole can be respectively transmitted to the inner cavities of the primary blowout prevention box 1 and the secondary blowout prevention box 16 through the connecting component 13;
by arranging the rubber sealing rings 1303, the connecting component 13 is tightly attached to the drill rod through the rubber sealing rings 1303, so that the effect of preventing gas in the drill hole from overflowing is achieved; the connecting component 13 can firmly seal and fix the rubber sealing ring 1303, prevent the rubber sealing ring 1303 from moving back and forth, and take out and replace the rubber sealing ring 1303 by rotating and detaching the male head 1304 after the rubber sealing ring 1303 is worn;
by arranging the gas collecting air bags 14, when a jet hole phenomenon occurs in a drill hole, a large amount of gas is suddenly jetted out, the primary blowout prevention box 1 and the secondary blowout prevention box 16 cannot contain overflowed gas, and when no gas can go, the gas collecting air bags 14 are pushed open and filled, so that the effects of collecting the gas and preventing the gas from overflowing into a roadway are achieved;
when a great amount of gas and residues are suddenly sprayed out when the length of the filtering column 1504 is one half of the length of the partition plate 1502 and the spraying hole is formed in the drilling hole, the residues can be contacted with the filtering column 1504 at the first time when the residues flow to the air bag interface grating 15, so that the isolation effect is realized, and small residues can be filtered through the partition plate 1502 by arranging the partition plate 1502, so that the problem that the residues puncture the gas collecting air bag 14 due to the spraying of the residues carried by gas is solved.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides a tertiary collection structure that prevents spouting of taking out drill way of large capacity, includes one-level blowout prevention case (1), its characterized in that: one end outer wall fixed mounting of one-level blowout prevention case (1) has negative pressure to take out and adopts interface one (2), the other end outer wall fixed mounting of one-level blowout prevention case (1) has negative pressure to take out and adopts interface two (3), the middle part outer wall fixed mounting of one-level blowout prevention case (1) has gasbag interface (4), one side outer wall fixed mounting that one-level blowout prevention case (1) is close to negative pressure to take out and adopts interface one (2) has steel pipe (5), one side outer wall fixed mounting that one-level blowout prevention case (1) was kept away from to steel pipe (5) has flange one (6), one side outer wall fixed mounting that one-level blowout prevention case (6) was kept away from to flange one (6) is provided with flange two (7), one side outer wall fixed mounting that flange two (7) kept away from flange one (6) is equipped with fastening pipe (8), the outer wall fixed mounting of fastening pipe (8) is equipped with pneumatic pipe (9), one side inner wall that pneumatic pipe (9) is close to fastening pipe (8) has seted up pneumatic cabin (11), one end outer wall fixed mounting of flange two (7) has groove (10), one-level blowout prevention case (1) is kept away from one side (1) is kept away from steel pipe (12) and is kept away from fixed one side of the fixed mounting of one-level blowout prevention case (1), the inner wall threaded connection of gasbag interface (4) has gasbag interface barrier (15), the outer edge of gasbag interface (4) is provided with gas collection gasbag (14), one side that steel pipe (5) were kept away from to one-level blowout prevention case (1) is provided with second grade blowout prevention case (16), the outer wall of second grade blowout prevention case (16) is fixed to be equipped with negative pressure extraction interface three (17).
2. The high-capacity three-stage extraction orifice blowout prevention collection structure according to claim 1, wherein: the connecting assembly (13) comprises a female seat (1301), a clamping ring (1302) is fixedly assembled at the bottom of the inner wall of one end of the female seat (1301) close to the steel pipe (5), a rubber sealing ring (1303) is arranged on the inner wall of the female seat (1301), and a male head (1304) and a threaded end cover (1305) are connected with the inner wall of the female seat (1301) in a threaded mode.
3. The high-capacity three-stage extraction orifice blowout prevention collection structure according to claim 2, wherein: the number of the connecting components (13) is two, one connecting component (13) is arranged between the second-level blowout prevention box (16) and the first-level blowout prevention box (1), and the other connecting component (13) is arranged on the outer wall of one end of the second-level blowout prevention box (16) far away from the first-level blowout prevention box (1).
4. A high capacity tertiary extraction orifice is with preventing spouting collection structure according to claim 3, characterized in that: in a group of connecting components (13) between the secondary blowout prevention box (16) and the primary blowout prevention box (1), the female seat (1301) is fixedly assembled with the outer wall of the primary blowout prevention box (1), the male head (1304) is fixedly assembled with the outer wall of the secondary blowout prevention box (16), and the secondary blowout prevention box (16) and the primary blowout prevention box (1) are in threaded connection with the female seat (1301) through the male head (1304);
in a group of connecting components (13) of one end outer wall of the primary blowout prevention box (1) is far away from to the secondary blowout prevention box (16), the female seat (1301) is fixedly assembled with one end outer wall of the primary blowout prevention box (1) is far away from to the secondary blowout prevention box (16), and the threaded end cover (1305) is in threaded connection with the inner wall of the female seat (1301).
5. The high-capacity three-stage extraction orifice blowout prevention collection structure according to claim 1, wherein: the diameter of the primary blowout prevention box (1) is 500mm, the length is 700mm, and the capacity is 0.14m 3 The diameter of the flange I (6) is 159mm; the diameter of the secondary blowout prevention box (16) is 500mm, the length is 350mm, and the capacity is 0.068m 3 。
6. The high-capacity three-stage extraction orifice blowout prevention collection structure according to claim 1, wherein: the gas collecting air bag (14) is usedThe hose clamp is tied up and fixed at the air bag interface (4), and the volume of the gas collecting air bag (14) reaches 1.3m 3 During normal drilling construction, the gas collection air bag (14) is in a negative pressure continuous pumping state, gas overflowed from the drill hole is pumped away through a negative pressure pumping joint I (2), a negative pressure pumping joint II (3) and a negative pressure pumping joint III (17), and the gas collection air bag (14) is in a suction flat state.
7. The high-capacity three-stage extraction orifice blowout prevention collection structure according to claim 1, wherein: the air bag interface grating (15) comprises a grating main body (1501), wherein partition plates (1502) are fixedly assembled on the inner walls of the two sides of the grating main body (1501), mounting grooves (1503) are formed in the inner walls of the partition plates (1502), and filtering columns (1504) are fixedly assembled on the inner walls of the mounting grooves (1503);
the length of the filtering column (1504) is one half of that of the partition board (1502), and the grating main body (1501) is in threaded connection with the inner wall of the air bag interface (4).
8. The high-capacity three-stage extraction orifice blowout prevention collection structure according to claim 1, wherein: the slag discharging ports (12) are two groups, one group of slag discharging ports (12) are arranged on the outer wall of the primary blowout prevention box (1), the other group of slag discharging ports (12) are fixedly assembled on the outer wall of the secondary blowout prevention box (16), and the flange I (6) and the flange II (7) are fixedly assembled through bolts.
9. The high capacity three-stage extraction orifice blowout prevention collection structure according to claim 8, wherein: the first negative pressure extraction interface (2) and the second negative pressure extraction interface (3) are symmetrically arranged by taking the air bag interface (4) as a center, and the slag discharging port (12) is arranged in the opposite directions of the first negative pressure extraction interface (2), the second negative pressure extraction interface (3) and the air bag interface (4).
CN202311472896.9A 2023-11-07 2023-11-07 Anti-blowout collection structure for high-capacity three-stage extraction orifice Pending CN117345149A (en)

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CN202311472896.9A CN117345149A (en) 2023-11-07 2023-11-07 Anti-blowout collection structure for high-capacity three-stage extraction orifice

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Application Number Priority Date Filing Date Title
CN202311472896.9A CN117345149A (en) 2023-11-07 2023-11-07 Anti-blowout collection structure for high-capacity three-stage extraction orifice

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CN117345149A true CN117345149A (en) 2024-01-05

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