CN117262945A - Mine wellhead protection device for mine hoist - Google Patents
Mine wellhead protection device for mine hoist Download PDFInfo
- Publication number
- CN117262945A CN117262945A CN202311548958.XA CN202311548958A CN117262945A CN 117262945 A CN117262945 A CN 117262945A CN 202311548958 A CN202311548958 A CN 202311548958A CN 117262945 A CN117262945 A CN 117262945A
- Authority
- CN
- China
- Prior art keywords
- mine
- pipe
- piston
- wellhead
- ball head
- 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.)
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Links
- 230000001105 regulatory effect Effects 0.000 claims abstract 2
- 238000007789 sealing Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 3
- 230000003116 impacting effect Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 19
- 238000005065 mining Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B17/00—Hoistway equipment
Landscapes
- Earth Drilling (AREA)
- Actuator (AREA)
Abstract
The invention relates to the technical field of mine protection, and discloses a support platform, a lifting pipe, an adjusting component, a connecting ball head and a blowout preventer arranged on the connecting ball head, wherein the support platform is arranged on the outer side of a mine wellhead, the lifting pipe is vertically arranged on the support platform, a rotary support is arranged on the support platform, the adjusting component is arranged on the rotary support, the connecting ball head is movably arranged on the top end of the adjusting component, the lifting pipe is a lifting channel of the mine hoist, and the pipe end of the lifting pipe is detachably connected to the bottom end of the adjusting component. According to the invention, the mine hoist equipment is replaced at the upper end of the lifting pipe through the rotary support, the high-speed fluid is slowed down through the structure in the replaced connecting ball head, the protection strength of the wellhead is ensured, meanwhile, the deflection angle of the connecting ball head and the blowout preventer is continuously regulated by utilizing the pressure difference, the pressure difference at the inner side of the wellhead is obtained through the deflection angle, and the condition that water burst in the well occurs is better detected.
Description
Technical Field
The invention relates to the field of mine protection, in particular to a mine wellhead protection device for a mine hoist.
Background
Mine lifts refer to the primary transportation equipment that is connected downhole to the ground in a mining process. Mine hoists are hoisting machines installed on the ground that drive a hoisting vessel along a shaft or ramp by means of a wire rope. It is used for lifting coal, ore, gangue, lifting personnel, lowering materials, tools, equipment and the like in vertical shafts and inclined shafts.
The water burst of mine is a sudden water outlet accident caused by the approach or communication of a roadway, a working surface, a karst cave, a cave-in column, a structural breaking belt and the like of the water-bearing stratum. During the tunneling or working face extraction process, the natural balance of the rock stratum is destroyed, and the surrounding water body enters the mining working face through the faults, the water-resisting layer and the weak parts of the rock stratum under the action of hydrostatic pressure and mine pressure to form mine water burst.
In the mining process, because a large amount of underground water floods into a mine tunnel, the mine hoist equipment and the mine foundation safely collapse due to the fact that the water burst is sprayed out from a mine opening, and the mine hoist equipment and the mine foundation are seriously threatened to the safety of a mine, sometimes even direct mining areas are scrapped, continuous mining cannot be carried out, and serious losses are caused in the aspects of economy and resource utilization.
After the mine water burst occurs in a small range, the water outlet point of the mine is unbalanced on the inner side of the position of the mine, the mine is prevented from collapsing by using filler blocking, the water burst side of the mine cannot be well filled, the single-side pressure in the mine is deviated, the filler blocking effect is poor, the state of the mine water burst cannot be controlled easily, and collapse of a mine hoist and a wellhead foundation cannot be recovered.
Disclosure of Invention
The invention provides a mine wellhead protection device for a mine hoist, which solves the technical problems that the pressure on the inner side of a mine wellhead is deviated and the water burst state of a mine is not easy to control in the related art.
The invention provides a mine wellhead protection device for a mine hoist, which comprises a supporting platform, a lifting pipe, an adjusting component, a connecting ball head and a blowout preventer arranged on the connecting ball head, wherein the supporting platform is arranged on the outer side of a mine wellhead;
a flow channel is arranged in the connecting ball head, one end of the flow channel is provided with a plurality of baffle bodies, a middle-arranged flow channel is reserved among the baffle bodies, two sides of the other end of the flow channel are respectively extended with a pipeline, electromagnetic valves are arranged on the pipelines, and the tail ends of the pipelines are connected with a blowout preventer;
the outer walls of the two baffle bodies are respectively provided with a pressure sensor, the signal ends of the pressure sensors are electrically connected with the electromagnetic valve, one side of the vertical section of the baffle bodies is of an arch structure, the other side of the vertical section of the baffle bodies is of a plane structure, and the baffle bodies are used for dividing the liquid input into the circulation channels and mutually impacting at the tail ends of the middle circulation channels to reduce speed;
the adjusting component comprises a flexible pressure-resistant pipe, mounting seats and hydraulic cylinder groups, wherein the mounting seats are arranged in parallel, through holes are formed in the middle of the mounting seats, the flexible pressure-resistant pipe is arranged between the through holes of the mounting seats on two sides, and the hydraulic cylinder groups are annularly distributed between the mounting seats on two sides.
Further, the blowout preventer comprises a base, a sealing cover, an input pipe, a piston and a pressing rubber plug, wherein the sealing cover is arranged on the base, a sliding cylinder is arranged in the base, the piston is sleeved on the outer wall of the sliding cylinder, the pressing rubber plug is arranged on the top end of the sliding cylinder, the piston moves on the outer wall of the sliding cylinder along the vertical direction, and the piston extrudes the pressing rubber plug to retract inwards and seal the sealing cover.
Further, the outer side wall of the sliding cylinder is provided with a limiting chute, the inner side wall of the piston is provided with a sliding lug, and the sliding lug is in sliding connection with the inside wall of the limiting chute.
Further, the bottom of base is equipped with flange, and flange card locates on the connection bulb.
Further, a first input pipe and a second input pipe are respectively arranged on two sides of the base, and the first input pipe and the second input pipe are connected with a pipeline extending in the connecting ball head.
Further, the vertical cross-sectional structure of the piston is an F-shaped structure, and when the piston moves vertically on the outer wall of the slide cylinder, the end surfaces of the piston are switched between the first input pipe and the second input pipe.
Further, the inner side wall of the connecting flange is provided with a circle of guide plates, and the guide plates are used for guiding the liquid flowing in the adjusting assembly.
Further, both the outer side of the flexible pressure-resistant pipe and the end of the blowout preventer are connected with a drainage source, and the drainage source is used for rapidly discharging liquid sprayed out of the mine.
Further, the rotary support is of a triangular structure, and a positioning piece is arranged at the joint of the rotary support and the supporting platform.
Further, the pipes extending at both sides of the flow channel are divided into a high-pressure pipe and a low-pressure pipe, which are connected with the first input pipe and the second input pipe through the pipes, respectively.
The invention has the beneficial effects that: this well head protector accessible runing rest is replaced mine winder's riser's upper end to high-speed fluid is slowed down through the structure in the connecting bulb after the replacement, guarantees its well head protection's intensity, utilizes the off-angle of pressure differential constantly regulation connecting bulb and preventer simultaneously, obtains the inboard pressure differential of well head through the off-angle, better detection in the well state that appears gushing water.
Drawings
FIG. 1 is a schematic view of a mine wellhead protection device for a mine hoist;
FIG. 2 is a top view of FIG. 1 of the present invention;
FIG. 3 is a schematic view of the structure of the vertical section of the connecting ball of the present invention;
FIG. 4 is an assembly view of the blowout preventer of the present invention;
FIG. 5 is a front view of FIG. 4 of the present invention;
FIG. 6 is a schematic view of the cross-sectional structure of FIG. 5 A-A in accordance with the present invention;
fig. 7 is a schematic view of the piston of fig. 4 in accordance with the present invention.
In the figure: 100. supporting a platform; 200. an adjustment assembly; 210. a first mount; 220. a hydraulic cylinder group; 230. a second mounting base; 240. a flexible pressure-resistant tube; 300. connecting a ball head; 310. a protective housing; 320. a baffle; 330. a centrally arranged flow channel; 340. a lateral flow channel; 350. a low pressure tube; 360. a high pressure pipe; 370. an electromagnetic valve; 380. an output flow channel; 400. blowout preventer; 410. a base; 411. a connecting flange; 412. a deflector; 420. a first input tube; 430. a second input tube; 440. a piston; 441. a sliding bump; 450. pressing the rubber plug; 460. a sliding cylinder; 461. limiting sliding grooves; 470. sealing cover; 500. a riser; 600. and (5) rotating the bracket.
Detailed Description
The subject matter described herein will now be discussed with reference to example embodiments. It is to be understood that these embodiments are merely discussed so that those skilled in the art may better understand and implement the subject matter described herein and that changes may be made in the function and arrangement of the elements discussed without departing from the scope of the disclosure herein. Various examples may omit, replace, or add various procedures or components as desired. In addition, features described with respect to some examples may be combined in other examples as well.
Referring to fig. 1 to 7, the mine wellhead protection device for a mine hoist comprises a supporting platform 100, a lifting pipe 500, an adjusting assembly 200, a connecting ball head 300 and a blowout preventer 400 arranged on the connecting ball head 300, wherein the supporting platform 100 is arranged on the outer side of a mine wellhead, the lifting pipe 500 is vertically arranged on the supporting platform 100, a rotary support 600 is arranged on the supporting platform 100, the adjusting assembly 200 is arranged on the rotary support 600, the connecting ball head 300 is movably arranged on the top end of the adjusting assembly 200, the lifting pipe 500 is a lifting channel of the mine hoist, and the pipe end of the lifting pipe 500 is detachably connected to the bottom end of the adjusting assembly 200;
the rotary support 600 is in a triangular structure, a positioning piece is arranged at the joint of the rotary support 600 and the supporting platform 100, in the protection process, the mine hoist is switched from the lifting pipe 500, and the structure consisting of the adjusting component 200, the blowout preventer 400 and the connecting ball head 300 is switched to the lifting pipe 500;
the connecting ball head 300 comprises a protective shell 310, a flow channel is arranged in the protective shell 310, a plurality of baffle bodies 320 are symmetrically arranged at one end of the flow channel, the baffle bodies 320 are annularly distributed in the flow channel, a middle-arranged flow channel 330 is reserved among the baffle bodies 320, lateral flow channels 340 are respectively arranged on the outer side walls of the annularly distributed baffle bodies 320, pipelines are respectively extended at two sides of the other end of the flow channel, electromagnetic valves 370 are respectively arranged on the pipelines, and the tail ends of the pipelines are connected with a blowout preventer 400;
as shown in fig. 3, the outer walls of the baffle 320 are respectively provided with a pressure sensor, the signal ends of the pressure sensors are electrically connected with the electromagnetic valve 370, one side of the vertical section of the baffle 320 is in an arch structure, the other side is in a plane structure, and the baffle 320 is used for dividing the liquid input into the circulation channel and reducing the speed by mutually impacting at the tail end of the middle circulation channel 330;
namely, the middle-set circulation groove 330 inputs fluid, the fluid is led into the lateral circulation grooves 340 at two sides, the circulation speed of the fluid output by the lateral circulation grooves 340 is high, the pressure is low, the fluid circulation speed in the middle-set circulation groove 330 is low, the pressure is high, the fluid with low pressure is impacted to the fluid with high pressure on the tail end of the baffle 320 to continuously impact and reduce the speed, and finally the fluid is continuously input into the blowout preventer 400 through the output circulation groove 380;
the adjusting assembly 200 comprises a flexible pressure-resistant pipe 240, mounting seats and hydraulic cylinder groups 220, wherein the mounting seats are arranged in parallel, through holes are formed in the middle of the mounting seats, the flexible pressure-resistant pipe 240 is arranged between the through holes of the mounting seats on two sides, and the hydraulic cylinder groups 220 are distributed between the mounting seats on two sides in an annular mode.
The mounting seat comprises a first mounting seat 210 and a second mounting seat 230, the first mounting seat 210 and the second mounting seat 230 are of triangular structures and are mounted on a rotary bracket 600, through holes are formed in the first mounting seat 210 and the second mounting seat 230, and the first mounting seat 210 and the second mounting seat 230 are communicated through a flexible pressure-resistant pipe 240;
the blowout preventer 400 comprises a base 410, a sealing cover 470, an input pipe, a piston 440 and a pressing rubber plug 450, wherein the sealing cover 470 is arranged on the base 410, a sliding cylinder 460 is arranged in the base 410, the piston 440 is sleeved on the outer wall of the sliding cylinder 460, the pressing rubber plug 450 is arranged on the top end of the sliding cylinder 460, the piston 440 moves vertically on the outer wall of the sliding cylinder 460, the piston 440 extrudes the pressing rubber plug 450 to retract inwards and seals the sealing cover 470, a limiting chute 461 is arranged on the outer side wall of the sliding cylinder 460, a sliding lug 441 is arranged on the inner side wall of the piston 440, and the sliding lug 441 is connected in the wall of the limiting chute 461 in a sliding manner.
The outer sidewall of the base 410 is provided with an inclination sensor, which can detect the adjusted back inclination of the blowout preventer 400, and the inclination sensor and the pressure sensor are both related art, and the working principle thereof is not described again.
The bottom of base 410 is equipped with flange 411, flange 411 card locates on connecting bulb 300, the both sides of base 410 are equipped with first input tube 420 and second input tube 430 respectively, first input tube 420 and second input tube 430 are connected with the pipeline that extends in connecting bulb 300, pipeline that extends in the both sides of circulation channel divide into high-pressure pipe 360 and low-pressure pipe 350, high-pressure pipe 360 and low-pressure pipe 350 are connected with first input tube 420 and second input tube 430 respectively through the pipeline, the vertical cross-section structure of piston 440 is F type structure, when piston 440 moves along the plumb direction on the outer wall of slide cylinder 460, the terminal surface of piston 440 switches each other between first input tube 420 and second input tube 430.
Wherein, the inner side wall of the connecting flange 411 is provided with a circle of flow guiding plates 412, and the flow guiding plates 412 are used for guiding the liquid flowing in the adjusting assembly 200.
A drainage source for rapidly discharging the liquid ejected from the inside of the well is connected to both the outside of the flexible pressure pipe 240 and the end of the blowout preventer 400.
When the wellhead protection device is used, the specific protection flow is as follows:
the lifting end of the mine hoist extends into the lifting pipe 500, when the water pressure in the mine is insufficient, the adjusting assembly 200 and the blowout preventer 400 are driven to be switched to the lifting pipe 500 through the rotating bracket 600, and the second mounting seat 230 is mounted on the pipe end of the lifting pipe 500;
the fluid overflows into the flexible pressure-resistant pipe 240 and then passes through the middle-placed circulation groove 330 connected with the ball head 300, one part of the fluid is input by the middle-placed circulation groove 330, the other part of the fluid is input by the lateral circulation groove 340, the middle-placed circulation groove 330 inputs the fluid, the fluid is led into the lateral circulation grooves 340 at two sides, the fluid is output by the lateral circulation grooves 340 at a high circulation speed, the pressure is low, the fluid in the middle-placed circulation groove 330 has a low circulation speed and a high pressure, and the fluid with a low pressure is impacted to the fluid with a high pressure on the tail end of the baffle 320 to continuously impact for speed reduction;
the fluid after speed reduction passes through a pressure sensor on the baffle 320, the pressure sensor detects the water pressure value of the fluid, the fluid is introduced into the high-pressure pipe 360 and the low-pressure pipe 350 according to the water pressure, the low-pressure pipe 350 and the high-pressure pipe 360 are controlled to circulate through the electromagnetic valve 370, the high-pressure pipe 360 and the low-pressure pipe 350 are communicated into the base 410 through pipelines, and the first input pipe 420 and the second input pipe 430 in the base 410 are respectively connected with the high-pressure pipe 360 and the low-pressure pipe 350;
the high-pressure pipe 360 is connected with the first input pipe 420, the low-pressure pipe 350 is connected with the second input pipe 430, the piston 440 is pushed to move along the wall of the sliding cylinder 460, the sliding lug 441 of the piston 440 moves along the groove of the limiting chute 461, the piston 440 continuously presses the pressing rubber plug 450 into the pressing rubber plug 450, the end part of the sealing cover 470 is plugged by the pressing rubber plug 450, and the circulation caliber of the sealing cover 470 is reduced;
meanwhile, the electromagnetic valve 370 on the high-pressure pipe 360 or the low-pressure pipe 350 can be opened due to different water pressures at the outer sides of the baffle bodies 320 distributed in an annular manner and is connected with the first input pipe 420 or the second input pipe 430, and the hydraulic cylinder group 220 drives the connecting ball head 300 and the blowout preventer 400 connected with the connecting ball head 300 to deflect;
the connecting ball head 300 and the blowout preventer 400 are driven to form a certain included angle with the vertical direction through deflection, and the pressure changes at different sides can be detected through the included angle;
the water pressure of 100N is corresponding with 1 degree angle, the pressure difference of different sides can be detected through the contained angle, then the drainage is carried out through the drainage source of different sides, the drainage source can realize the work efficiency of different drainage sources according to the pressure difference variation intensity, and then the protection pressure balance of well head has been realized.
The embodiment has been described above with reference to the embodiment, but the embodiment is not limited to the above-described specific implementation, which is only illustrative and not restrictive, and many forms can be made by those of ordinary skill in the art, given the benefit of this disclosure, are within the scope of this embodiment.
Claims (10)
1. The mine wellhead protection device for the mine hoist is characterized by comprising a supporting platform (100), a lifting pipe (500), an adjusting component (200), a connecting ball head (300) and a blowout preventer (400) arranged on the connecting ball head (300), wherein the supporting platform (100) is arranged on the outer side of a mine wellhead, the lifting pipe (500) is vertically arranged on the supporting platform (100), a rotary support (600) is arranged on the supporting platform (100), the adjusting component (200) is arranged on the rotary support (600), the connecting ball head (300) is movably arranged on the top end of the adjusting component (200), the lifting pipe (500) is a lifting channel of the mine hoist, and the pipe end of the lifting pipe (500) is detachably connected to the bottom end of the adjusting component (200);
a flow channel is arranged in the connecting ball head (300), one end of the flow channel is provided with a plurality of baffle bodies (320), a middle-arranged flow channel (330) is reserved among the baffle bodies (320), two sides of the other end of the flow channel are respectively extended with a pipeline, electromagnetic valves (370) are arranged on the pipelines, and the tail ends of the pipelines are connected with a blowout preventer (400);
the outer walls of the two baffle bodies (320) are respectively provided with a pressure sensor, the signal ends of the pressure sensors are electrically connected with the electromagnetic valve (370), one side of the vertical section of the baffle bodies (320) is of an arch structure, the other side of the vertical section of the baffle bodies is of a plane structure, and the baffle bodies (320) are used for dividing the liquid input into the flow channel and mutually impacting at the tail ends of the middle-arranged flow channel (330) to reduce speed;
the adjusting component (200) comprises a flexible pressure-resistant pipe (240), mounting seats and hydraulic cylinder groups (220) which are arranged in parallel, through holes are formed in the middle of the mounting seats, the flexible pressure-resistant pipe (240) is arranged between the through holes of the mounting seats on two sides, and the hydraulic cylinder groups (220) are annularly distributed between the mounting seats on two sides.
2. The mine wellhead protection device for a mine hoist according to claim 1, characterized in that the blowout preventer (400) comprises a base (410), a sealing cover (470), an input pipe, a piston (440) and a pressing rubber plug (450), the sealing cover (470) is mounted on the base (410), a sliding cylinder (460) is arranged in the base (410), the piston (440) is sleeved on the outer wall of the sliding cylinder (460), the pressing rubber plug (450) is arranged on the top end of the sliding cylinder (460), the piston (440) moves on the outer wall of the sliding cylinder (460) along the vertical direction, and the piston (440) presses the pressing rubber plug (450) to retract inwards and seals the sealing cover (470).
3. The mine wellhead protection device for a mine hoist according to claim 2, characterized in that the outer side wall of the sliding cylinder (460) is provided with a limit chute (461), the inner side wall of the piston (440) is provided with a sliding lug (441), and the sliding lug (441) is slidably connected in the chute wall of the limit chute (461).
4. A mine wellhead protection device for a mine hoist according to claim 3, characterized in that the bottom end of the base (410) is provided with a connecting flange (411), the connecting flange (411) being clamped on the connecting ball (300).
5. The mine wellhead protection device for a mine hoist as claimed in claim 4, wherein the base (410) is provided with a first input pipe (420) and a second input pipe (430) on both sides thereof, respectively, the first input pipe (420) and the second input pipe (430) being connected to a pipe extending in the connecting bulb (300).
6. The mine wellhead protection device for a mine hoist of claim 5, characterized in that the vertical cross-sectional structure of the piston (440) is an F-shaped structure, and the end surface of the piston (440) is switched between the first input pipe (420) and the second input pipe (430) when the piston (440) moves vertically on the outer wall of the sliding cylinder (460).
7. The mine wellhead guard for a mine hoist of claim 6, characterized in that the inner side wall of the connecting flange (411) is provided with a ring of baffles (412), the baffles (412) being used for guiding the liquid flowing in the regulating assembly (200).
8. The mine wellhead guard for a mine hoist of claim 7, characterized in that both an outer side of the flexible pressure pipe (240) and an end of the blowout preventer (400) are connected with a drainage source for rapidly discharging liquid ejected from the mine.
9. The mine wellhead protection device for a mine hoist of claim 8, characterized in that the rotary support (600) is of a triangular structure, and a positioning member is provided at the junction of the rotary support (600) and the support platform (100).
10. The mine wellhead guard for a mine hoist of claim 9, characterized in that the pipes extending on both sides of the flow channel are divided into a high pressure pipe (360) and a low pressure pipe (350), the high pressure pipe (360) and the low pressure pipe (350) being connected to the first input pipe (420) and the second input pipe (430) respectively by the pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311548958.XA CN117262945B (en) | 2023-11-21 | 2023-11-21 | Mine wellhead protection device for mine hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311548958.XA CN117262945B (en) | 2023-11-21 | 2023-11-21 | Mine wellhead protection device for mine hoist |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117262945A true CN117262945A (en) | 2023-12-22 |
| CN117262945B CN117262945B (en) | 2024-01-23 |
Family
ID=89202934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311548958.XA Active CN117262945B (en) | 2023-11-21 | 2023-11-21 | Mine wellhead protection device for mine hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117262945B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1600281A (en) * | 1977-05-21 | 1981-10-14 | Nat Res Dev | Containment of pressurized fluid jets |
| GB8521937D0 (en) * | 1984-09-28 | 1985-10-09 | Hughes Tool Co | Drill pipe |
| US5588491A (en) * | 1995-08-10 | 1996-12-31 | Varco Shaffer, Inc. | Rotating blowout preventer and method |
| US6626245B1 (en) * | 2000-03-29 | 2003-09-30 | L Murray Dallas | Blowout preventer protector and method of using same |
| CN2648048Y (en) * | 2003-09-10 | 2004-10-13 | 中国石油天然气股份有限公司 | Novel active sealing rotary blowout preventer and control device thereof |
| CN206419000U (en) * | 2016-12-09 | 2017-08-18 | 东北石油大学 | One kind can realize gas well responding curve of well quantity-produced plunger gas producing device |
| CN107630696A (en) * | 2017-09-11 | 2018-01-26 | 中国石油化工股份有限公司 | The underground pressure testing device and its pressure-measuring method of a kind of ground blowout hookup |
| CN108150577A (en) * | 2018-02-06 | 2018-06-12 | 江西达森家私有限公司 | A kind of positive/negative-pressure buffer unit and application |
| CN214576881U (en) * | 2021-03-24 | 2021-11-02 | 天津市康瑞申石油工程技术有限公司 | Well head blowout preventer with protective structure |
| CN217421132U (en) * | 2022-02-28 | 2022-09-13 | 北京泰利新能源科技发展有限公司 | Wellhead device with pressure reduction function |
| CN115175059A (en) * | 2022-07-07 | 2022-10-11 | 广东智能无人系统研究院 | Mine is permeated water and is searched for aquatic speaker of usefulness of helping |
| CN117052343A (en) * | 2023-09-25 | 2023-11-14 | 中国石油大学(华东) | Ball valve type underground while-drilling plugging device and use method |
-
2023
- 2023-11-21 CN CN202311548958.XA patent/CN117262945B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1600281A (en) * | 1977-05-21 | 1981-10-14 | Nat Res Dev | Containment of pressurized fluid jets |
| GB8521937D0 (en) * | 1984-09-28 | 1985-10-09 | Hughes Tool Co | Drill pipe |
| US5588491A (en) * | 1995-08-10 | 1996-12-31 | Varco Shaffer, Inc. | Rotating blowout preventer and method |
| US6626245B1 (en) * | 2000-03-29 | 2003-09-30 | L Murray Dallas | Blowout preventer protector and method of using same |
| CN2648048Y (en) * | 2003-09-10 | 2004-10-13 | 中国石油天然气股份有限公司 | Novel active sealing rotary blowout preventer and control device thereof |
| CN206419000U (en) * | 2016-12-09 | 2017-08-18 | 东北石油大学 | One kind can realize gas well responding curve of well quantity-produced plunger gas producing device |
| CN107630696A (en) * | 2017-09-11 | 2018-01-26 | 中国石油化工股份有限公司 | The underground pressure testing device and its pressure-measuring method of a kind of ground blowout hookup |
| CN108150577A (en) * | 2018-02-06 | 2018-06-12 | 江西达森家私有限公司 | A kind of positive/negative-pressure buffer unit and application |
| CN214576881U (en) * | 2021-03-24 | 2021-11-02 | 天津市康瑞申石油工程技术有限公司 | Well head blowout preventer with protective structure |
| CN217421132U (en) * | 2022-02-28 | 2022-09-13 | 北京泰利新能源科技发展有限公司 | Wellhead device with pressure reduction function |
| CN115175059A (en) * | 2022-07-07 | 2022-10-11 | 广东智能无人系统研究院 | Mine is permeated water and is searched for aquatic speaker of usefulness of helping |
| CN117052343A (en) * | 2023-09-25 | 2023-11-14 | 中国石油大学(华东) | Ball valve type underground while-drilling plugging device and use method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117262945B (en) | 2024-01-23 |
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