CN212225173U - Mine is with preventing spouting guarantor's gas joint in - Google Patents
Mine is with preventing spouting guarantor's gas joint in Download PDFInfo
- Publication number
- CN212225173U CN212225173U CN202020672179.6U CN202020672179U CN212225173U CN 212225173 U CN212225173 U CN 212225173U CN 202020672179 U CN202020672179 U CN 202020672179U CN 212225173 U CN212225173 U CN 212225173U
- Authority
- CN
- China
- Prior art keywords
- pipe section
- blowout prevention
- section
- valve cover
- blowout
- 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.)
- Active
Links
Images
Landscapes
- Pipe Accessories (AREA)
Abstract
The utility model discloses an internal blowout prevention gas-protection joint for mines, which comprises a body, wherein the body is arranged at the bottom of a drill rod, the body comprises a valve pipe section and a connecting pipe section which are arranged from top to bottom, and the bottom of the valve pipe section is inserted into the top of the connecting pipe section; the bottom end of the valve pipe section is provided with a blowout prevention valve seat, the bottom surface of the valve pipe section is provided with a blowout prevention valve cover, the edge of the blowout prevention valve cover is rotatably connected with the edge of the bottom surface of the valve pipe section, the bottom surface of the blowout prevention valve cover is provided with a torsion spring, one end of the torsion spring is connected with the bottom surface of the blowout prevention valve cover, and the. The utility model discloses when coring the operation to the mine coal seam, have self-closing's function, reduce the leakage of gas, allow the heavy-calibre instrument to pass through.
Description
Technical Field
The utility model relates to a colliery gallery is got and is equipped the field, especially relates to a mine is with preventing spouting guarantor's gas joint in.
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 outburst danger areas and detecting the area effect of outburst coal beds, and 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 coal beds in mines and the like.
The corer comprises inner tube assembly and outer tube assembly usually, has the clearance between inner tube assembly and the outer tube assembly, leads to the gas to leak the risk higher, often uses at present to locate the blowout prevention box on drilling rod top and prevents the gas leakage, but still has the gas in the drilling rod, leads to coring operation to have the potential safety hazard.
When the core operation is carried out in the mine coal seam, the corer is usually required to be lifted and lowered through the inside of a drill rod for many times, and in the process of lifting and lowering the corer, the inner hole of the drill rod is communicated with the bottom of a hole and the external environment, so that gas leakage can be caused frequently.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a mine is with preventing spouting guarantor's gas joint in, when coring the operation to the mine coal seam, has self-closing's function, reduces the leakage of gas, allows the heavy-calibre instrument to pass through.
In order to achieve the purpose, the utility model adopts the following technical proposal to realize:
the utility model discloses a mine is with preventing spouting guarantor's gas joint in with, including the body, the body is installed in the drilling rod bottom, and the body includes valve pipe section, the connecting pipe section that sets up from the top to the end, and valve pipe section bottom inserts connecting pipe section top, and valve pipe section bottom is for preventing spouting the disk seat, and valve pipe section bottom surface is equipped with prevents spouting the valve gap, prevents spouting valve gap border and rotates connecting valve pipe section bottom surface border, prevents spouting the valve gap bottom surface and is equipped with the torsional spring, and torsional spring one end is connected and is prevented spouting valve gap bottom.
Preferably, the bottom of the valve pipe section is a male head section, the top of the connecting pipe section is a female head section, the bottom of the connecting pipe is an outlet section, and the inner diameter of the female head section is larger than that of the outlet section.
Preferably, the sum of the length of the male head section and the diameter of the blowout prevention valve cover is less than or equal to the length of the female head section.
Preferably, the blowout preventer cover may be a resiliently deformable structure,
when the blowout prevention valve cover is in an open state, the blowout prevention valve cover is arc-shaped and clings to the inner wall of the female head section, and when the blowout prevention valve cover is in a closed state, the blowout prevention valve cover is plate-shaped.
Preferably, the blowout-preventing valve further comprises a cylindrical pin, the cylindrical pin is arranged on the bottom surface of the blowout-preventing valve cover, and the cylindrical pin penetrates through the blowout-preventing valve cover and the torsion spring.
Preferably, the valve pipe section is in threaded connection with the connecting pipe section, and the top of the outer wall of the male head section and the top of the inner wall of the female head section are both provided with threads matched with each other.
Preferably, the sealing surface of the blowout prevention valve seat is a first inclined surface with the diameter gradually increasing from top to bottom, the sealing surface of the blowout prevention valve cover is a second inclined surface, and the first inclined surface is matched with the second inclined surface.
The utility model has the advantages that:
1. the utility model discloses can reduce the leakage of gas.
2. The utility model discloses simple structure, the good reliability.
3. The utility model discloses can allow the major diameter instrument to pass through.
Drawings
FIG. 1 is a sectional view of an internal blowout prevention gas protection joint when opened;
FIG. 2 is a cross-sectional view of the internal blowout prevention gas protection joint closed;
fig. 3 is a schematic diagram of the coring operation.
In the figure: 1-reel device, 2-transmission device, 3-coring device, 4-drill pipe, 5-blowout prevention box, 6-drill pipe driving device, 701-valve pipe section, 702-connecting pipe section, 703-female head section, 704-outlet section, 705-male head section, 706-blowout prevention valve seat, 707-blowout prevention valve cover, 708-torsion spring, 709-cylindrical pin, 710-first inclined surface, 711-second inclined surface, 8-pulling component, 9-injection head and 10-inner pipe assembly.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings.
As shown in figures 1 to 3, the utility model discloses an internal blowout prevention gas joint suitable for a coring device,
the internal blowout prevention gas-protection joint comprises a valve pipe section 701 and a connecting pipe section 702, the valve pipe section 701 is detachably connected with the connecting pipe section 702, the bottom end of the valve pipe section 701 is a male joint, the top end of the connecting pipe section 702 is a female joint,
the top of the connecting pipe section 702 is a female head section 703, the bottom of the connecting pipe section 702 is an outlet section 704, the inner diameter of the female head section 703 is larger than that of the outlet section 704, the inner diameter of the outlet section 704 is larger than that of the inner pipe assembly,
the bottom of the valve pipe section 701 is a male head section 705, the bottom end of the valve pipe section 701 is a blowout prevention valve seat 706, the bottom surface of the valve pipe section 701 is provided with a blowout prevention valve cover 707, the edge of the blowout prevention valve cover 707 is rotatably connected with the edge of the bottom surface of the valve pipe section 701, the bottom surface of the blowout prevention valve cover 707 is provided with a torsion spring 708, one end of the torsion spring 708 is connected with the blowout prevention valve cover 707, the other end of the torsion spring 708 is connected with the inner wall of the female head section 703, the sealing surface of the blowout prevention valve seat 706 is a first inclined surface 710 with the diameter gradually increasing from top to,
in order to better fix the torsion spring 708 and the blowout preventer cap 707, a cylindrical pin 709 is arranged on the bottom surface of the blowout preventer cap 707, the cylindrical pin 709 penetrates through the middle of the blowout preventer cap 707 and the torsion spring 708,
the sum of the length of the male head section 705 and the diameter of the blowout preventer valve cover 707 is less than or equal to the length of the female head section 703, when the utility model is in an open state, namely the blowout preventer valve cover 707 is in a vertical state, the blowout preventer valve cover 707 is still in the female head section 703,
the blowout preventer cover 707 may be a deformable structure, and when the blowout preventer cover 707 is jacked open by the inner pipe assembly, the blowout preventer cover 707 may be changed into an arc shape to abut against the inner wall of the female head section 703, so that the device structure is more compact.
The continuous conduit working equipment comprises a reel device 1 and a transfer device 2,
the reel device 1 is used for transferring a pulling assembly 8 such as a rope, a continuous conduit or the like,
the transmission device 2 comprises an injection head 9, a blowout prevention box 5 and a drill rod driving device 6, the drill rod driving device 6 drives an outer pipe assembly of the coring device to rotate and press down through a drill rod 4, the blowout prevention box 5 is arranged at the top end of the drill rod 4 to prevent gas from erupting, the injection head 9 drives a traction assembly 8 to further complete the lifting movement of an inner pipe assembly 10 of the coring device 3, and the traction assembly 8 penetrates through the blowout prevention box 5 to enter the drill rod 4.
In actual operation, the drill rod driving device 6 is used for clamping the periphery of the top of the drill rod 4, the pulling component 8 is connected with the inner pipe assembly 10, the inner pipe assembly 10 is put in and lowered from the drill rod 4, so that the inner pipe assembly 10 enters the outer pipe assembly,
before the inner pipe assembly 10 enters the inner blowout prevention gas-protection joint, the blowout prevention valve cover 707 is in a horizontal state under the action of the torsion spring 708, the inner blowout prevention gas-protection joint is in a closed state,
when the inner pipe assembly 10 enters the inner blowout prevention gas-protection joint, the inner pipe assembly 10 jacks the blowout prevention valve cover 707, and because the blowout prevention valve cover 707 is of a structure easy to deform, the blowout prevention valve cover 707 is tightly attached to the inner wall of the inner blowout prevention gas-protection joint,
after the inner pipe assembly 10 is withdrawn from the inner blowout prevention gas-protection joint, the blowout prevention valve cover 707 returns to the horizontal state under the action of the torsion spring 708, the blowout prevention valve cover 707 returns to the flat state, and the inner blowout prevention gas-protection joint is closed.
Of course, the present invention may have other embodiments, and those skilled in the art may make various corresponding changes and modifications according to the present invention without departing from the spirit and the essence of the present invention, and these corresponding changes and modifications should fall within the protection scope of the appended claims.
Claims (7)
1. The utility model provides a mine is with preventing spouting guarantor's gas joint in, its characterized in that: the anti-blowout valve comprises a body, wherein the body is installed at the bottom of a drill rod, the body comprises a valve pipe section and a connecting pipe section, the valve pipe section and the connecting pipe section are arranged from top to bottom, the bottom of the valve pipe section is inserted into the top of the connecting pipe section, an anti-blowout valve seat is arranged at the bottom end of the valve pipe section, an anti-blowout valve cover is arranged on the bottom surface of the valve pipe section, the anti-blowout valve cover edge is rotatably connected with the bottom surface edge of the valve pipe section.
2. The fitting according to claim 1, wherein: the bottom of the valve pipe section is a male head section, the top of the connecting pipe section is a female head section, the bottom of the connecting pipe is an outlet section, and the inner diameter of the female head section is larger than that of the outlet section.
3. The fitting according to claim 2, wherein: the sum of the length of the male head section and the diameter of the blowout prevention valve cover is less than or equal to the length of the female head section.
4. A joint according to claim 3, wherein: the blowout preventer bonnet may be a resiliently deformable structure,
when the blowout prevention valve cover is in an opening state, the blowout prevention valve cover is arc-shaped and is matched with the inner wall of the female head section,
when the blowout prevention valve cover is in a closed state, the blowout prevention valve cover is plate-shaped.
5. The fitting according to claim 1, wherein: the blowout prevention valve cover is characterized by further comprising a cylindrical pin, wherein the cylindrical pin is arranged on the bottom surface of the blowout prevention valve cover, and the cylindrical pin penetrates through the blowout prevention valve cover and the torsion spring.
6. The fitting according to claim 2, wherein: valve pipe section and connecting pipe section threaded connection, public first section outer wall top and female first section inner wall top all are equipped with the screw thread of mutual adaptation.
7. A joint according to any one of claims 1 to 6, wherein: the sealing surface of the blowout prevention valve seat is a first inclined surface with the diameter gradually increasing from top to bottom, the sealing surface of the blowout prevention valve cover is a second inclined surface, and the first inclined surface is matched with the second inclined surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020672179.6U CN212225173U (en) | 2020-04-27 | 2020-04-27 | Mine is with preventing spouting guarantor's gas joint in |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020672179.6U CN212225173U (en) | 2020-04-27 | 2020-04-27 | Mine is with preventing spouting guarantor's gas joint in |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212225173U true CN212225173U (en) | 2020-12-25 |
Family
ID=73909038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020672179.6U Active CN212225173U (en) | 2020-04-27 | 2020-04-27 | Mine is with preventing spouting guarantor's gas joint in |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212225173U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111485854A (en) * | 2020-04-27 | 2020-08-04 | 四川大学 | Mine is with preventing spouting guarantor's gas joint in |
-
2020
- 2020-04-27 CN CN202020672179.6U patent/CN212225173U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111485854A (en) * | 2020-04-27 | 2020-08-04 | 四川大学 | Mine is with preventing spouting guarantor's gas joint in |
| WO2021218253A1 (en) * | 2020-04-27 | 2021-11-04 | 四川大学 | Internal blowout-prevention gas-retaining connector for mine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201486515U (en) | Switch type releasing packer | |
| US7874371B2 (en) | Subsurface lubricator and method of use | |
| CN111485854A (en) | Mine is with preventing spouting guarantor's gas joint in | |
| CN203403854U (en) | Well mouth blowout preventer for large-diameter logging instrument | |
| CN212225173U (en) | Mine is with preventing spouting guarantor's gas joint in | |
| CN203476271U (en) | Ground hydraulic drilling jar for deep well and extra-deep well | |
| CN201280908Y (en) | Borehole log wellhead double-sealing blowout preventer | |
| CN2512899Y (en) | High pressure oil-gas water well operation device with pressure | |
| CN201723198U (en) | Double-opening differential pressure sliding sleeve | |
| CN210343289U (en) | Ultra-light titanium alloy logging blowout preventer | |
| CN210919028U (en) | Pressure testing device of blowout preventer full-sealing flashboard | |
| CN201367858Y (en) | Pressurized drilling device for drilling rod | |
| CN208686348U (en) | A kind of blowout prevention Simple assembling device for geologic survey well | |
| CN204238870U (en) | A kind of drill rod connector | |
| CN207093024U (en) | A kind of cementing cement head with rubber plug indicator | |
| CN2784580Y (en) | Hydraulic locking packer | |
| CN208267812U (en) | A kind of oil well head device | |
| CN2929162Y (en) | Wellhead in-site test pressure complete set device | |
| CN202788810U (en) | Pressure testing device of oil-water well operation well head and blowout preventer | |
| CN201778733U (en) | Hydraulic penetration device between subsea production tree and tubing hanger | |
| CN201810250U (en) | Hydraulic returnable salvage spear | |
| CN205805506U (en) | Shallow well lockable drives a well test valve | |
| CN202325402U (en) | Blowout-preventing plug valve | |
| CN201037416Y (en) | Mine mouth pressure testing device | |
| CN214035596U (en) | Overpressure protection equipment for well control pressure test equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |