CN102518801A - Special faucet washing pipe compound sealing device for petroleum drilling machine - Google Patents
Special faucet washing pipe compound sealing device for petroleum drilling machine Download PDFInfo
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- CN102518801A CN102518801A CN2011104206989A CN201110420698A CN102518801A CN 102518801 A CN102518801 A CN 102518801A CN 2011104206989 A CN2011104206989 A CN 2011104206989A CN 201110420698 A CN201110420698 A CN 201110420698A CN 102518801 A CN102518801 A CN 102518801A
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- washing pipe
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- packing
- sealing
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Abstract
The invention relates to the technical field of special faucet washing pipe sealing devices for petroleum drilling machines, in particular to a special faucet washing pipe compound sealing device for a petroleum drilling machine, which comprises an upper sealing device, a washing pipe, a central pipe, a lower sealing mounting pipe, a lower gland, a mechanical sealing device and a lower packing sealing device, and an upper gland is mounted above the washing pipe and integrated with the washing pipe through the upper sealing device. The special faucet washing pipe compound sealing device is reasonable and compact in structure and convenient in use, the washing pipe is doubly sealed by the mechanical sealing device and the lower packing sealing device, cement paste and fine sand can be effectively stopped by means of primary sealing of the mechanical sealing device, the special faucet washing pipe compound sealing device is fine in sealing effect and long in service life, the secondary sealing mode of packing sealing can be used for continuing sealing if the primary sealing loses effectiveness, accordingly, sealing time can be prolonged, replacement frequency of the sealing device is reduced, waste is decreased, working efficiency is improved, and the special faucet washing pipe compound sealing device enables faucet sealing to be effectively prolonged to six to twelve months.
Description
Technical field
the present invention relates to oil-well rig dedicated water tap washpipe packing device technique field, are a kind of oil-well rig dedicated water tap washing pipe composite seal devices.
Background technique
are present, and the sealing means of oil-well rig dedicated water tap washing pipe mainly is the mode that adopts packing_seal; Top and bottom at washing pipe are adopted the packing_seal mode respectively; Because the medium in the water tap is a cement slurry, contains more fine sand in the cement slurry, the rubber seal ring of the packing_seal that very easily weares and teares; Especially the packing_seal of installing in the washing pipe lower end, because of it be main motive sealing position, so in seal process, in the very easy embedding packing of fine sand, the formation packing wearing and tearing, the weak effect of sealing; Again because of its life cycle short (1 to 2 months), change frequently, not only caused bigger waste, when changing, also very delay project progress simultaneously.
Summary of the invention
the invention provides a kind of oil-well rig dedicated water tap washing pipe composite seal device; Overcome the deficiency of above-mentioned existing technology; When packing_seal is adopted in its lower end that can effectively solve water tap; Sealing effect is poor, changes frequently, causes the problem of corresponding waste and reduction project progress.
technological scheme of the present invention realizes through following measure: a kind of oil-well rig dedicated water tap washing pipe composite seal device comprises upper sealing device, washing pipe, center tube, lower seal mounting pipe, lower cover, mechanical seal device and following packing seal arrangement; Upper press cover is installed above washing pipe, and upper press cover and washing pipe are installed together through upper sealing device; The center tube that can rotate is installed below washing pipe, and the outside, bottom of washing pipe is set with the lower seal mounting pipe, forms the cavity of annular between lower seal mounting pipe and the washing pipe; The lower end and the center tube of lower seal mounting pipe are fixed together; Middle inside in the lower seal mounting pipe is fixedly connected with annular dividing plate, and dividing plate is separated into installation cavity and following installation cavity with the cavity between lower seal mounting pipe and the washing pipe; Packing seal arrangement down is installed in last installation cavity, and following packing seal arrangement and washing pipe are fixed together; Be installed with the lower cover that can will descend the packing seal arrangement to compress in the upper end of lower seal mounting pipe; In the installation cavity mechanical seal device is being installed down; The top and the washing pipe of mechanical seal device are fixed together, and the lower end and the center tube of mechanical seal device are fixed together.
Be to the further optimization of foregoing invention technological scheme below or/and improve:
above-mentioned mechanical seal device comprises retainer, locating stud, pressure spring, throw-out collar, stationary ring, rotating ring and anti-rotation pin; Retainer is the ring set that Open Side Down, and the radially pin-and-hole of at least one circle distribution is arranged on the top of retainer, is fixed together through locating stud between the top of retainer and the washing pipe; Form the compression chamber of the annular that Open Side Down between the bottom of retainer and the washing pipe; Be installed with pressure spring, throw-out collar and stationary ring in the following installation cavity below retainer from top to bottom successively; The upper end of pressure spring is fixedly mounted in the compression chamber, and the lower end of pressure spring is fixedly mounted on the upper outside of throw-out collar; The rotating ring that can rotate is installed below stationary ring, and the axial pin-and-hole of at least two circle distribution is arranged at the bottom of rotating ring, is fixed together through the anti-rotation pin between rotating ring and the center tube.
There is the outer lug of annular in the outside, bottom of
above-mentioned lower seal mounting pipe, and outside thread is arranged respectively on outer lug and the center tube, and following locking union is fixedly connected on the outer lug and the center tube outside through screw thread; The upper end of outer lug is up-narrow and down-wide taper, and the inner convex platform of annular is arranged on the following locking union on outer lug, and the lower end of inner convex platform is stuck on the outer lug; The annular protrusion that annular is arranged in the upper end of center tube, annular protrusion are installed in down the lower inside of installation cavity and are fixed together through the anti-rotation pin with rotating ring.
above-mentioned packing seal arrangement down comprises packing_seal ring and spacer ring; Packing_seal ring and spacer ring from top to bottom alternately are fixed together successively; Two cover packing_seal ring and spacer rings are installed in last installation cavity and are fixedly mounted on the outside of washing pipe.
above-mentioned upper sealing device comprise packing_seal ring, spacer ring, on seal fitting seat and go up locking trip ninth of the ten Heavenly Stems; The upper outside of washing pipe is equipped with the upward sealing fitting seat that opening makes progress; In last sealing fitting seat, be sealed and installed with spacer ring and packing_seal ring from top to bottom; The upper outside of the washing pipe corresponding with spacer ring and packing_seal ring has keyway, and spacer ring and packing_seal ring are installed in the upper outside of washing pipe through key; Upper press cover is fixedly mounted on the spacer ring upper end, the ninth of the ten Heavenly Stems upper press cover and last sealing fitting seat is installed together and spacer ring and packing_seal ring are compressed through last locking trip.
Be installed with seal ring between
above-mentioned rotating ring and the annular protrusion; Be installed with seal ring between stationary ring and the washing pipe; Be installed with seal ring between packing_seal ring in last sealing fitting seat and the upper press cover.
There is the connection screw thread hole of at least two circle distribution the upper end of
above-mentioned lower seal mounting pipe, lower seal mounting pipe and lower cover and between link together through the lower cover screw.
reasonable and compact in structure of the present invention, easy to use; Through mechanical seal device and following packing seal arrangement washing pipe is carried out double-sealing, the primary seal of mechanical seal device can effectively stop cement slurry fine sand, good sealing effect, long service life; Like first seal failure, can adopt the secondary seal mode of packing_seal to continue sealing, can prolong the time of sealing like this, reduce the replacing frequency of seal arrangement, cut the waste, increase work efficiency; This invention can make the water tap sealing effectively prolong 6 to 12 months.
Description of drawings
accompanying drawing 1 is looked the sectional structure schematic representation for the master of most preferred embodiment of the present invention.
Coding in
accompanying drawing is respectively: 1 is washing pipe, and 2 is center tube, and 3 is the lower seal mounting pipe, and 4 is dividing plate, and 5 is lower cover; 6 is retainer, and 7 is locating stud, and 8 is compression chamber, and 9 is pressure spring, and 10 is throw-out collar; 11 is stationary ring, and 12 is rotating ring, and 13 is the anti-rotation pin, and 14 is outer lug, and 15 for locking union down; 16 is inner convex platform, and 17 is annular protrusion, and 18 is seal ring, and 19 is the packing_seal ring, and 20 is spacer ring; 21 is the lower cover screw, and 22 is upper press cover, and 23 is last sealing fitting seat, and 24 is that the ninth of the ten Heavenly Stems is swum in last locking.
Embodiment
the present invention does not receive following embodiment's restriction, can confirm concrete mode of execution according to technological scheme of the present invention and actual conditions.
in the present invention; For the ease of describing; The description of the relative position relation of each parts all is to describe according to the Butut mode of Figure of description 1, as: the position relation of upper and lower, left and right etc. is what to confirm according to the Butut direction of Figure of description.
Below in conjunction with embodiment and accompanying drawing the present invention is further described:
shown in accompanying drawing 1, this oil-well rig dedicated water tap washing pipe composite seal device comprises upper sealing device, washing pipe 1, center tube 2, lower seal mounting pipe 3, lower cover 5, mechanical seal device and following packing seal arrangement; Upper press cover 22 is installed above washing pipe 1, and upper press cover 22 and washing pipe 1 are installed together through upper sealing device; The center tube 2 that can rotate is installed below washing pipe 1, and the outside, bottom of washing pipe 1 is set with lower seal mounting pipe 3, forms the cavity of annular between lower seal mounting pipe 3 and the washing pipe 1; The lower end of lower seal mounting pipe 3 and center tube 2 are fixed together; Middle inside in lower seal mounting pipe 3 is fixedly connected with annular dividing plate 4, and dividing plate 4 is separated into installation cavity and following installation cavity with the cavity between lower seal mounting pipe 3 and the washing pipe 1; Packing seal arrangement down is installed in last installation cavity, and following packing seal arrangement and washing pipe 1 are fixed together; Be installed with the lower cover 5 that can will descend the packing seal arrangement to compress in the upper end of lower seal mounting pipe 3; In the installation cavity mechanical seal device is being installed down; The top of mechanical seal device and washing pipe 1 are fixed together, and the lower end of mechanical seal device and center tube 2 are fixed together.Mechanical seal device carries out double-sealing with following packing seal arrangement; Promptly seal through mechanical seal device earlier by washing pipe 1 and the cement slurry that center tube 2 leaks; After the seal failure, can prevent to leak between the adjacent junction plane between washing pipe 1 and the lower cover 5 through packing seal arrangement sealing down; Mechanical seal has that sealing is reliable, and macrocyclic in service, sealing state is very stable, and leakage rate is very little, and characteristics such as working life make the invention need not the frequent change seal arrangement, increase work efficiency.
Can according to actual needs above-mentioned oil-well rig dedicated water tap washing pipe composite seal device be done further to optimize or/and improve:
shown in accompanying drawing 1, mechanical seal device comprises retainer 6, locating stud 7, pressure spring 9, throw-out collar 10, stationary ring 11, rotating ring 12 and anti-rotation pin 13; Retainer 6 is the ring set that Open Side Down, and the radially pin-and-hole of at least one circle distribution is arranged on the top of retainer 6, is fixed together through locating stud 7 between the top of retainer 6 and the washing pipe 1; Form the compression chamber 8 of the annular that Open Side Down between the bottom of retainer 6 and the washing pipe 1; Be installed with pressure spring 9, throw-out collar 10 and stationary ring 11 in the following installation cavity below retainer 6 from top to bottom successively; The upper end of pressure spring 9 is fixedly mounted in the compression chamber 8, and the lower end of pressure spring 9 is fixedly mounted on the upper outside of throw-out collar 10; The rotating ring 12 that can rotate is installed below stationary ring 11, and the axial pin-and-hole of at least two circle distribution is arranged at the bottom of rotating ring 12, is fixed together through anti-rotation pin 13 between rotating ring 12 and the center tube 2.Through the yield force of pressure spring 9, make pressure spring 9 promote throw-out collar 10 and stationary ring 11, thereby compression rotating ring 12 make between rotating ring 12 and the center tube 2 and produce motive sealing; In this process; Washing pipe 1 is fixing, and center tube 2 rotates, and the lower seal mounting pipe 3 that is connected with center tube 2 is rotated; Owing to be connected through locating stud 7 between retainer 6 and the washing pipe 1; Retainer 6 is fixing, and connected pressure spring 9, throw-out collar 10 and stationary ring 11 all are fixedly mounted on the washing pipe 1, play the effect of compression rotating ring 12.
have the outer lug 14 of annular in the outside, bottom of lower seal mounting pipe 3 shown in accompanying drawing 1, on outer lug 14 and the center tube 2 outside thread is arranged respectively, and following locking union 15 is fixedly connected on the outer lug 14 and center tube 2 outsides through screw thread; The upper end of outer lug 14 is up-narrow and down-wide taper, and the inner convex platform 16 of annular is arranged on the following locking union 15 of outer lug 14 upper ends, and the lower end of inner convex platform 16 is stuck on the outer lug 14; The annular protrusion 17 that annular is arranged in the upper end of center tube 2, annular protrusion 17 are installed in down the lower inside of installation cavity and are fixed together through anti-rotation pin 13 with rotating ring 12.Through under lock union 15 center tube 2 and lower seal mounting pipe 3 be fixedly installed togather, so also can play the adjacent junction plane that preventing center tube 2 and lower seal mounting pipe 3 and leak, play the effect of sealing.
shown in accompanying drawing 1, upper sealing device comprise packing_seal ring 19, spacer ring 20, on seal fitting seat 23 and go up locking trip ninth of the ten Heavenly Stems 24; The upper outside of washing pipe 1 is installed with the upward sealing fitting seat 23 that opening makes progress; In last sealing fitting seat 23, be sealed and installed with spacer ring 20 and packing_seal ring 19 from top to bottom; The upper outside of the washing pipe 1 corresponding with spacer ring 20 and packing_seal ring 19 has keyway, and spacer ring 20 and packing_seal ring 19 are installed in the upper outside of washing pipe 1 through key; Upper press cover 22 is fixedly mounted on spacer ring 20 upper ends, and upper press cover 22 is installed together and spacer ring 20 and packing_seal ring 19 are compressed through last locking trip with last sealing fitting seat 23 ninth of the ten Heavenly Stems 24.
shown in accompanying drawing 1, following packing seal arrangement comprises packing_seal ring 19 and spacer ring 20; In last installation cavity, alternately be sealed and installed with two cover packing_seal rings 19 and spacer ring 20 and be fixedly mounted on the outside, bottom of washing pipe 1.Like this, compress, make it play the effect of sealing through 5 pairs of packing_seal rings of lower cover 19 and spacer ring 20.
are installed with seal ring 18 between rotating ring 12 and annular protrusion 17 shown in accompanying drawing 1; Be installed with seal ring 18 between stationary ring 11 and the washing pipe 1; Be installed with seal ring 18 between packing_seal ring 1 in last sealing fitting seat 23 and the upper press cover 22.
have the connection screw thread hole of at least two circle distribution in the upper end of lower seal mounting pipe 3 shown in accompanying drawing 1, lower seal mounting pipe 3 and lower cover 5 and between be fixed together through lower cover screw 21.Be convenient to the installation and removal between lower cover 5 and the lower seal mounting pipe 3 like this.
above technical characteristics has constituted most preferred embodiment of the present invention, and it has stronger adaptability and best implementation result, can increase and decrease non-essential technical characteristics according to actual needs, satisfies the demand of different situations.
Claims (10)
1. an oil-well rig dedicated water tap washing pipe composite seal device is characterized in that comprising upper sealing device, washing pipe, center tube, lower seal mounting pipe, lower cover, mechanical seal device and following packing seal arrangement; Upper press cover is installed above washing pipe, and upper press cover and washing pipe are installed together through upper sealing device; The center tube that can rotate is installed below washing pipe, and the outside, bottom of washing pipe is set with the lower seal mounting pipe, forms the cavity of annular between lower seal mounting pipe and the washing pipe; The lower end and the center tube of lower seal mounting pipe are fixed together; Middle inside in the lower seal mounting pipe is fixedly connected with annular dividing plate, and dividing plate is separated into installation cavity and following installation cavity with the cavity between lower seal mounting pipe and the washing pipe; Packing seal arrangement down is installed in last installation cavity, and following packing seal arrangement and washing pipe are fixed together; Be installed with the lower cover that can will descend the packing seal arrangement to compress in the upper end of lower seal mounting pipe; In the installation cavity mechanical seal device is being installed down; The top and the washing pipe of mechanical seal device are fixed together, and the lower end and the center tube of mechanical seal device are fixed together.
2. oil-well rig dedicated water tap washing pipe composite seal device according to claim 1 is characterized in that mechanical seal device comprises retainer, locating stud, pressure spring, throw-out collar, stationary ring, rotating ring and anti-rotation pin; Retainer is the ring set that Open Side Down, and the radially pin-and-hole of at least one circle distribution is arranged on the top of retainer, is fixed together through locating stud between the top of retainer and the washing pipe; Form the compression chamber of the annular that Open Side Down between the bottom of retainer and the washing pipe; Be installed with pressure spring, throw-out collar and stationary ring in the following installation cavity below retainer from top to bottom successively; The upper end of pressure spring is fixedly mounted in the compression chamber, and the lower end of pressure spring is fixedly mounted on the upper outside of throw-out collar; The rotating ring that can rotate is installed below stationary ring, and the axial pin-and-hole of at least two circle distribution is arranged at the bottom of rotating ring, is fixed together through the anti-rotation pin between rotating ring and the center tube.
3. oil-well rig dedicated water tap washing pipe composite seal device according to claim 2; There is annular outer lug in the outside, bottom that it is characterized in that the lower seal mounting pipe; Outside thread is arranged respectively on outer lug and the center tube, and following locking union is fixedly connected on the outer lug and the center tube outside through screw thread; The upper end of outer lug is up-narrow and down-wide taper, and the inner convex platform of annular is arranged on the following locking union on outer lug, and the lower end of inner convex platform is stuck on the outer lug; The annular protrusion that annular is arranged in the upper end of center tube, annular protrusion are installed in down the lower inside of installation cavity and are fixed together through the anti-rotation pin with rotating ring.
4. according to claim 1 or 2 or 3 described oil-well rig dedicated water tap washing pipe composite seal devices, it is characterized in that the packing seal arrangement comprises packing_seal ring and spacer ring down; Packing_seal ring and spacer ring from top to bottom alternately are fixed together successively; Two cover packing_seal ring and spacer rings are installed in last installation cavity and are fixedly mounted on the outside of washing pipe.
5. according to claim 1 or 2 or 3 described oil-well rig dedicated water tap washing pipe composite seal devices, it is characterized in that upper sealing device comprise packing_seal ring, spacer ring, on seal fitting seat and go up locking trip ninth of the ten Heavenly Stems; The upper outside of washing pipe is installed with the upward sealing fitting seat that opening makes progress; In last sealing fitting seat, be sealed and installed with spacer ring and packing_seal ring from top to bottom; The upper outside of the washing pipe corresponding with spacer ring and packing_seal ring has keyway, and spacer ring and packing_seal ring are installed in the upper outside of washing pipe through key; Upper press cover is fixedly mounted on the spacer ring upper end, and upper press cover and last sealing fitting seat are installed together and spacer ring and packing_seal ring are compressed through last locking trip the ninth of the ten Heavenly Stems.
6. oil-well rig dedicated water according to claim 4 tap washing pipe composite seal device, it is characterized in that upper sealing device comprise packing_seal ring, spacer ring, on seal fitting seat and go up locking trip ninth of the ten Heavenly Stems; The upper outside of washing pipe is installed with the upward sealing fitting seat that opening makes progress; In last sealing fitting seat, be sealed and installed with spacer ring and packing_seal ring from top to bottom; The upper outside of the washing pipe corresponding with spacer ring and packing_seal ring has keyway, and spacer ring and packing_seal ring are installed in the upper outside of washing pipe through key; Upper press cover is fixedly mounted on the spacer ring upper end, and upper press cover and last sealing fitting seat are installed together and spacer ring and packing_seal ring are compressed through last locking trip the ninth of the ten Heavenly Stems.
7. oil-well rig dedicated water tap washing pipe composite seal device according to claim 6 is characterized in that being installed with seal ring between rotating ring and the annular protrusion; Be installed with seal ring between stationary ring and the washing pipe; Be installed with seal ring between packing_seal ring in last sealing fitting seat and the upper press cover.
8. according to claim 1 or 2 or 3 described oil-well rig dedicated water tap washing pipe composite seal devices; There is the connection screw thread hole of at least two circle distribution the upper end that it is characterized in that the lower seal mounting pipe, lower seal mounting pipe and lower cover and between link together through the lower cover screw.
9. oil-well rig dedicated water tap washing pipe composite seal device according to claim 4; There is the connection screw thread hole of at least two circle distribution the upper end that it is characterized in that the lower seal mounting pipe, lower seal mounting pipe and lower cover and between link together through the lower cover screw.
10. oil-well rig dedicated water tap washing pipe composite seal device according to claim 7; There is the connection screw thread hole of at least two circle distribution the upper end that it is characterized in that the lower seal mounting pipe, lower seal mounting pipe and lower cover and between link together through the lower cover screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110420698.9A CN102518801B (en) | 2011-12-15 | 2011-12-15 | Special faucet washing pipe compound sealing device for petroleum drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110420698.9A CN102518801B (en) | 2011-12-15 | 2011-12-15 | Special faucet washing pipe compound sealing device for petroleum drilling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102518801A true CN102518801A (en) | 2012-06-27 |
| CN102518801B CN102518801B (en) | 2015-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110420698.9A Expired - Fee Related CN102518801B (en) | 2011-12-15 | 2011-12-15 | Special faucet washing pipe compound sealing device for petroleum drilling machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN102518801B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105156050A (en) * | 2015-06-19 | 2015-12-16 | 北京捷杰西石油设备有限公司 | Petroleum and natural gas drilling washpipe assembly |
| CN108050134A (en) * | 2017-12-08 | 2018-05-18 | 周宝龙 | A kind of special snap-fit connecting flange structure |
| 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 |
| CN111853241A (en) * | 2020-07-28 | 2020-10-30 | 河南华中科翔石油机械有限公司 | Washing pipe sealing ultrahigh-pressure sealing packing for drilling machine faucet |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105156050A (en) * | 2015-06-19 | 2015-12-16 | 北京捷杰西石油设备有限公司 | Petroleum and natural gas drilling washpipe assembly |
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| CN108050134A (en) * | 2017-12-08 | 2018-05-18 | 周宝龙 | A kind of special snap-fit connecting flange structure |
| 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 |
| CN111853241A (en) * | 2020-07-28 | 2020-10-30 | 河南华中科翔石油机械有限公司 | Washing pipe sealing ultrahigh-pressure sealing packing for drilling machine faucet |
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| CN102518801B (en) | 2015-06-17 |
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