CN201103356Y - Packing and sealing device for oil-well rig water tap washing pipe with butterfly spring - Google Patents
Packing and sealing device for oil-well rig water tap washing pipe with butterfly spring Download PDFInfo
- Publication number
- CN201103356Y CN201103356Y CNU2007200312418U CN200720031241U CN201103356Y CN 201103356 Y CN201103356 Y CN 201103356Y CN U2007200312418 U CNU2007200312418 U CN U2007200312418U CN 200720031241 U CN200720031241 U CN 200720031241U CN 201103356 Y CN201103356 Y CN 201103356Y
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- packing
- washing pipe
- mud
- sealed
- slurry
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- Expired - Fee Related
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Abstract
The utility model relates to a packing sealing device used for a faucet washing pipe of an oil rig with disk spring, which is provided with a washing pipe (1). A slurry packing (3) is sealed and arranged at one end of the washing pipe (1) by an upper packing box (2) and all are fixed together into a whole body with an upper cover; the slurry packing (3) is sealed and arranged at the other end of the washing pipe (1) by a lower packing box (7) and all are fixed together into a whole body by a central pipe and an union (8) in which ladder-shaped screw threads are arranged, the whole body rotates along with the rotation of the central pipe; a disk spring (5) is arranged between the slurry packings in the upper packing box. The dick spring produces a back pressure on the sealing packing to reduce the pressure difference which comes from the slurry needing and is born by the sealing device, thus improving the situation that the sealing packing is intensively pressurized. The design can facilitate operation, slow down wear and tear of the sealing and a slurry pressure as high as 52MPa can be born.
Description
Technical field
The utility model relates to a kind of oil-well rig water tap washing pipe packing_seal device with the dish spring in the oil drilling equipment.
Background technology
The mud seal is the critical component of water tap, domestic petroleum rig water tap substantially all adopts floating punch tubular type packing_seal device at present, adopt screw thread to be connected with central tube with gooseneck by upper and lower packing box, when changing packing, need only upper and lower packing box is outwarded winding, this device has obtained extensive use because of the localized mode blocking.But according to its seal operation principle, concentrated pressurized is the key factor that sealing ring damages fast, in case mud pressure during greater than 35Mpa, the time that washing pipe and packing are operated at full capacity only can be kept 100h and just be lost efficacy and needed to change, stop boring and changing number of times thereby increase, influence bit speed.Reach when pump pressure under the situation of 52Mpa, this device can't use substantially, that is to say present floating punch tubular type packing_seal device, and the high-pressure water tap of rig is supporting in the time of can't adapting to oil drilling and be equipped in the large-scale heavy duty direction and develop.The utility model has solved 52Mpa effectively with interior water tap washpipe packing problem.
Summary of the invention
The utility model purpose provides a kind of oil-well rig water tap washing pipe packing_seal device with the dish spring, concentrates the situation of pressurized to improve sealed packing.
Specifically, a kind of oil-well rig water tap washing pipe packing_seal device with the dish spring, has a washing pipe (1), using packing box (2) at washing pipe (1) one end is sealed and installed with mud packing (3) and is fixed as one with loam cake together, the other end of washing pipe (1) with packing box (7) down be sealed and installed with mud packing (3) and together the union (8) by built-in trapezoidal thread connect as one with the rotation of central tube with central tube and rotate, thereby be equipped with between the mud packing in last packing box back pressure of sealed packing generation is born the situation butterfly spring (5) that the pressure differential that comes from mud is improved the concentrated pressurized of sealed packing with the reduction seal.
Mud packing (3) is fixed on down in the packing box (7) by last grommet (6) and the union (8) by built-in trapezoidal thread and central tube connect as one with the rotation of central tube and rotate together.
The utility model advantage is: the packing_seal device of the band dish spring of design is when mud pressure increases, by the dish spring sealed packing is produced a back pressure and bear the pressure differential that comes from mud to reduce seal, thereby improve the problems such as situation that sealed packing is concentrated pressurized, finally reach and reduce packing frictional force, reduce wearing and tearing, prolong the function in washpipe packing life-span.
Description of drawings
Accompanying drawing is the utility model structural representation.
The specific embodiment
Sealing packing unit of the present utility model as shown in the figure by washing pipe (1), go up packing box (2), mud packing (3), steady pin (4), dish spring (5), go up grommet (6), the union (8) etc. of packing box (7), built-in trapezoidal thread is formed down.Sealing packing unit form of structure mainly as shown in drawings, be divided into two parts, the upper end is made up of last packing box (2), mud packing (3), steady pin (4), dish spring (5) etc., fits together the back and by bolt or union they and loam cake is fixed together, and does not rotate; And the lower end is by last grommet (6), mud packing (3), packing box (7) waits and forms down, after fitting together with washing pipe (1) again union (8) and the central tube by built-in trapezoidal thread connect as one, rotate with the rotation of central tube.Last packing part mainly comprises mud packing (3) and dish spring (5) two parts, and these two parts all are placed in the packing box, and lubricating grease is filled with by oil nozzle (A) in the inside.After the normal assembling, whole mud packing (3) and dish spring (5) are in full oil condition, Y type mud packing (3) has the hydraulic pressure self-sealing effect, promptly its lip compresses the washing pipe outer wall all the time under the mud hydraulic action, under the situation that mud packing (3) constantly is worn, its lip still can lean on the hydraulic pressure spreading to guarantee sealing, when pressure changes, camber of spring can form relatively moving between washing pipe (1) and mud packing (3), being equivalent to washing pipe (1) fluctuates, can make the washing pipe wearing and tearing more even like this, when pressure reached certain numerical value, the dish spring of at this moment settling in the packing_seal device (5) produced the wearing and tearing that big counteracting spring power compensates packing according to increasing of pressure, just said back pressure, finally reach and reduce packing frictional force, reduction wearing and tearing, the function that prolongs the washpipe packing life-span.
Claims (2)
1. oil-well rig water tap washing pipe packing_seal device with the dish spring, has a washing pipe (1), it is characterized in that using packing box (2) at washing pipe (1) one end is sealed and installed with mud packing (3) and is fixed as one with loam cake together, the other end of washing pipe (1) with packing box (7) down be sealed and installed with mud packing (3) and together the union (8) by built-in trapezoidal thread connect as one with the rotation of central tube with central tube and rotate, thereby be equipped with between the mud packing in last packing box back pressure of sealed packing generation is born the situation butterfly spring (5) that the pressure differential that comes from mud is improved the concentrated pressurized of sealed packing with the reduction seal.
2. the oil-well rig water tap washing pipe packing_seal device of band dish spring according to claim 1 is characterized in that mud packing (3) is fixed on down in the packing box (7) by last grommet (6) and the union (8) by built-in trapezoidal thread and central tube connect as one with the rotation of central tube and rotate together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200312418U CN201103356Y (en) | 2007-02-09 | 2007-02-09 | Packing and sealing device for oil-well rig water tap washing pipe with butterfly spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200312418U CN201103356Y (en) | 2007-02-09 | 2007-02-09 | Packing and sealing device for oil-well rig water tap washing pipe with butterfly spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201103356Y true CN201103356Y (en) | 2008-08-20 |
Family
ID=39950381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200312418U Expired - Fee Related CN201103356Y (en) | 2007-02-09 | 2007-02-09 | Packing and sealing device for oil-well rig water tap washing pipe with butterfly spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201103356Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527076A (en) * | 2013-11-04 | 2014-01-22 | 恒天九五重工有限公司 | Top-driving-power faucet |
| CN106837218A (en) * | 2017-02-28 | 2017-06-13 | 中国海洋石油总公司 | A kind of well top driving mechanism hydraulic pressure pushing type rubber seal washing pipe assembly |
| CN106837239A (en) * | 2017-02-28 | 2017-06-13 | 中国海洋石油总公司 | A kind of rotary tail well cementation hydraulic pressure pushing type rubber seal cementing head |
| CN109751402A (en) * | 2019-01-18 | 2019-05-14 | 江苏徐工工程机械研究院有限公司 | A kind of vehicle-mounted coal bed gas drilling machine power head reduction gearbox |
-
2007
- 2007-02-09 CN CNU2007200312418U patent/CN201103356Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527076A (en) * | 2013-11-04 | 2014-01-22 | 恒天九五重工有限公司 | Top-driving-power faucet |
| CN103527076B (en) * | 2013-11-04 | 2015-11-18 | 恒天九五重工有限公司 | A kind of top driving force water tap |
| CN106837218A (en) * | 2017-02-28 | 2017-06-13 | 中国海洋石油总公司 | A kind of well top driving mechanism hydraulic pressure pushing type rubber seal washing pipe assembly |
| CN106837239A (en) * | 2017-02-28 | 2017-06-13 | 中国海洋石油总公司 | A kind of rotary tail well cementation hydraulic pressure pushing type rubber seal cementing head |
| CN106837239B (en) * | 2017-02-28 | 2023-01-13 | 中国海洋石油总公司 | Hydraulic pushing type rubber sealing cement head for rotary tail pipe well cementation |
| CN106837218B (en) * | 2017-02-28 | 2023-03-24 | 中国海洋石油总公司 | Hydraulic pushing type rubber sealing washpipe assembly of drilling top driving device |
| CN109751402A (en) * | 2019-01-18 | 2019-05-14 | 江苏徐工工程机械研究院有限公司 | A kind of vehicle-mounted coal bed gas drilling machine power head reduction gearbox |
| CN109751402B (en) * | 2019-01-18 | 2023-10-03 | 江苏徐工工程机械研究院有限公司 | Vehicle-mounted coalbed methane drill power head reduction gearbox |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080820 Termination date: 20130209 |