CN116892375A - Pumping unit wellhead packing box - Google Patents
Pumping unit wellhead packing box Download PDFInfo
- Publication number
- CN116892375A CN116892375A CN202310972257.2A CN202310972257A CN116892375A CN 116892375 A CN116892375 A CN 116892375A CN 202310972257 A CN202310972257 A CN 202310972257A CN 116892375 A CN116892375 A CN 116892375A
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- China
- Prior art keywords
- oil
- wall
- packing box
- sleeve
- packing
- 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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- 238000012856 packing Methods 0.000 title claims abstract description 120
- 238000005086 pumping Methods 0.000 title claims abstract description 29
- 239000003921 oil Substances 0.000 claims abstract description 187
- 210000000078 claw Anatomy 0.000 claims description 53
- 230000017525 heat dissipation Effects 0.000 claims description 40
- 230000002265 prevention Effects 0.000 claims description 39
- 239000010687 lubricating oil Substances 0.000 claims description 21
- 210000004907 gland Anatomy 0.000 claims description 15
- 230000001681 protective effect Effects 0.000 claims description 15
- 239000004519 grease Substances 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000010779 crude oil Substances 0.000 abstract description 23
- 238000003912 environmental pollution Methods 0.000 abstract description 5
- 239000012535 impurity Substances 0.000 abstract description 3
- 238000009288 screen filtration Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 11
- 238000007789 sealing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
- F16N13/02—Lubricating-pumps with reciprocating piston
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N3/00—Devices for supplying lubricant by manual action
- F16N3/10—Devices for supplying lubricant by manual action delivering grease
- F16N3/12—Grease guns
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a packing box of a wellhead of a pumping unit, which comprises: the packing box main part, packing box main part is including supporting base, packing box body, and the packing box body sets up in the top of supporting the base, is provided with the packing that corresponds with the polished rod in the packing box body, and the polished rod passes and supports the base, supports base inner wall bottom and installs first oil box, and first pump is installed to first oil box inner wall bottom, and first oil pipe is installed to first pump outer wall, and first oil pipe outer wall cover is equipped with the filter screen, and second oil pipe is installed to first pump outer wall, and the second oil pipe runs through first oil box and supports the base outer wall and stretches out. When the packing box main part takes place that crude oil spills, then start first pump machine and pass through the first oil pipe and pump in the second oil pipe with the crude oil behind the filter screen filtration impurity, the outside collection box of second oil pipe connection discharges crude oil, has realized the crude oil collection discharge function that spills the packing box main part, prevents that crude oil from causing the pollution to the well internal environment, has solved the packing box oil leak and has led to environmental pollution's problem.
Description
Technical Field
The invention relates to the technical field of auxiliary equipment of a wellhead of an oil pumping unit in an oil field, in particular to a wellhead packing box of the oil pumping unit.
Background
The packing box is used for sealing the wellhead dynamic sealing device of the oil pipe and the polish rod annular space, adopts multistage sealing, has good sealing effect and high pressure resistance, is particularly suitable for wellhead deflection oil wells due to the fact that the universal joint is designed for adjusting the eccentricity and the angle, and has the following working principle: the surface of the shaft is very uneven under the microcosmic condition and can only be partially attached to the packing, so that a tiny gap exists between the packing and the shaft, like a labyrinth, a medium is intercepted for many times in the labyrinth, so that the sealing effect is achieved, the existing packing box cannot collect and discharge crude oil leaked from the packing box, and the problem of underground environmental pollution caused by crude oil leakage is solved.
The prior Chinese patent document CN21728840U discloses a packing box of a wellhead of an oil pumping unit, which comprises a mounting base, wherein the outer surface of the mounting base is slidably connected with a gland, and the outer surface of the gland is fixedly provided with a fixing lug. Through this design, at the lubrication box, annotate the liquid mouth with lubricating oil and pour into inside the lubrication box through the lubrication box into, and under the effect of lubricating oil, so that carry out lubricated processing to the surface of polished rod, and lead to the upper end of its inflow gland through the through-hole, through the contact gap of polished rod and gland, flow into the contact gap of polished rod and suppression packing, on flowing into the packing rope, so that the packing rope absorbs it, after polished rod and packing rope contact, the wearing and tearing situation of packing rope and polished rod has been reduced, and then the life of polished rod has been improved, and under the effect of scraping the polished rod board, so that scrape the polished rod of contact, the burr on the polished rod has been avoided accelerating the problem of wearing and tearing to the packing rope.
To sum up, above-mentioned patent has realized reducing the wearing and tearing situation of packing rope and polished rod through being provided with fixed ear, gland and through-hole, and then has improved the life of polished rod to and under the effect of scraping the polished rod board, so as to scrape the polished rod of contact, avoided burr on the polished rod to the problem that the packing rope is wearing and tearing fast, but above-mentioned patent can not collect the discharge function to the crude oil that the packing box spilled, leads to the crude oil to reveal the problem that causes downhole environmental pollution. Therefore, there is a need for a pumping unit wellhead packing box that at least partially addresses the problems of the prior art.
Disclosure of Invention
In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description. The summary of the invention is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
To at least partially solve the above problems, the present invention provides a wellhead packing box of a pumping unit, including: the packing box main part, packing box main part is including supporting base, packing box body, the packing box body sets up in the top of supporting the base, be provided with the packing that corresponds with the polished rod in the packing box body, the polished rod passes and supports the base, it is provided with first oil box to support base inner wall bottom, first oil box inner wall bottom is provided with first pump machine, be provided with first oil pipe on the first pump machine outer wall, first oil pipe outer wall cover is equipped with the filter screen, be provided with second oil pipe on the first pump machine outer wall, second oil pipe runs through first oil box and supports the base outer wall and stretches out.
According to the wellhead packing box of the pumping unit, the splash guard is arranged at the upper end of the outer wall of the supporting base, the oil leakage hole channel is arranged at the upper end of the outer wall of the supporting base, the second oil box is arranged at the upper end of the inner wall of the supporting base, the third oil pipe is arranged at the bottom of the outer wall of the second oil box, and the bottom of the outer wall of the third oil pipe is communicated with the upper end of the outer wall of the first oil box.
According to the wellhead packing box of the pumping unit, the upper end of the outer wall of the supporting base is provided with a plurality of movable rods, the packing box body is arranged at the upper end of the movable rods, the upper end of the outer wall of the packing box body is provided with a gland, the polish rod penetrates through the outer wall of the gland and extends out, and the upper end of the outer wall of the gland is provided with a compression bolt.
According to the oil pumping unit wellhead packing box provided by the embodiment of the invention, the outer wall of the packing box body is provided with the first hydraulic cylinder, the outer wall of the first hydraulic cylinder is provided with the first hydraulic rod, the outer wall of the first hydraulic rod is provided with the first limiting block, and the first limiting block is tightly attached to the outer wall of the packing.
According to the oil pumping unit wellhead packing box provided by the embodiment of the invention, the outer wall of the packing box body is provided with the second hydraulic cylinder, the outer wall of the second hydraulic cylinder is provided with the second hydraulic rod, the outer wall of the second hydraulic rod is provided with the second limiting block, and the second limiting block is tightly attached to the outer wall of the packing.
According to the wellhead packing box of the oil pumping unit, the outer wall of the packing box body is provided with the lubricating oil box, the upper end of the outer wall of the lubricating oil box is provided with the oil injection pipeline, the lubricating oil box is internally provided with the grease gun pump, the outer wall of the grease gun pump is provided with the oil outlet pipe, the outer wall of the oil outlet pipe is provided with the oil gun port, and the oil gun port is connected with the outer wall of the packing.
According to the wellhead packing box of the pumping unit, the protection module is arranged on the support base, the upper end of the protection module is communicated with the bottom of the packing box body, the protection module comprises the upper protection sleeve and the lower protection sleeve, the lower protection sleeve is arranged on the support base, the upper protection sleeve is connected with the lower protection sleeve, the polish rod penetrates through the upper protection sleeve and the lower protection sleeve, the upper part of the outer wall of the upper protection sleeve is movably provided with the claw mechanism, the lower part of the outer wall of the upper protection sleeve is provided with the oil leakage prevention sleeve, the upper part of the outer wall of the lower protection sleeve is provided with the oil leakage prevention inner sleeve corresponding to the oil leakage prevention sleeve and the claw seat blocks corresponding to the claw mechanism, and the oil leakage prevention inner sleeve is connected with the claw seat blocks through the limiting rods.
According to the wellhead packing box of the pumping unit, the oil leakage prevention inner sleeve is arranged on the lower protective sleeve in a sliding mode, a first oil leakage prevention convex lip ring and a second oil leakage prevention convex lip ring are arranged on the oil leakage prevention inner sleeve, an oil leakage prevention groove is arranged on the first oil leakage prevention convex lip ring, an oil leakage prevention pad is arranged in the oil leakage prevention groove, a first wedge-shaped surface is arranged on the first oil leakage prevention convex lip ring, and a second wedge-shaped surface is arranged at the lower edge of the inner wall of the oil leakage prevention outer sleeve.
According to the oil pumping unit wellhead packing box disclosed by the embodiment of the invention, the claw seat block is internally provided with the heat dissipation cylinder, the lower protective sleeve is provided with the first heat dissipation opening, the first heat dissipation opening is positioned in the heat dissipation cylinder, the first heat dissipation opening is internally provided with the inner oil leakage prevention piece, the inner oil leakage prevention piece comprises the inner leakage prevention cover, the inner pressure spring and the ball, the inner leakage prevention cover is arranged at the outer end of the first heat dissipation opening, the inner leakage prevention cover is provided with a plurality of hollow grooves, the inner pressure spring and the ball are arranged in the first heat dissipation opening, and the inner pressure spring is propped against the inner leakage prevention cover and the ball, so that the ball is blocked at the inner end of the first heat dissipation opening.
According to the wellhead packing box of the pumping unit, the lower protective sleeve is further provided with the auxiliary mechanism, the auxiliary mechanism comprises the auxiliary slip ring and a plurality of outer auxiliary cylinders, the auxiliary slip ring is arranged on the lower protective sleeve, the outer auxiliary cylinders are arranged on the lower protective sleeve and sleeved on the heat dissipation cylinder, the lower end of the heat dissipation cylinder is provided with the first end cover and the pressing plate, the lower end of the heat dissipation cylinder is provided with the second end cover, the second end cover is provided with the auxiliary guide rod and the auxiliary spring, the auxiliary guide rod is arranged in the first end cover in a penetrating mode and abuts against the pressing plate, the auxiliary spring abuts against the first end cover and the second end cover, and the second end cover is further provided with the plurality of second heat dissipation openings.
Compared with the prior art, the invention at least comprises the following beneficial effects:
1. the invention provides a packing box for a wellhead of an oil pumping machine, which comprises a packing box main body, wherein the packing box main body comprises a supporting base, a first oil box and a first pump, the first oil box is arranged at the bottom of the inner wall of the supporting base, the first pump is arranged at the bottom of the inner wall of the first oil box, a first oil pipe is arranged on the outer wall of the first pump, a filter screen is sleeved on the outer wall of the first oil pipe, a second oil pipe is arranged on the outer wall of the first pump, and the second oil pipe penetrates through the first oil box and the outer wall of the supporting base to extend out. When the packing box main part takes place that crude oil spills, then start first pump machine and pass through the first oil pipe and pump in the second oil pipe with the crude oil behind the filter screen filtration impurity, the outside collection box of second oil pipe connection discharges crude oil, has realized the crude oil collection discharge function that spills the packing box main part, prevents that crude oil from causing the pollution to the well internal environment, has solved the packing box oil leak and has led to environmental pollution's problem.
2. According to the invention, the lubricating oil box, the grease gun pump and the oil gun port are arranged, the outer wall of the packing box body is provided with the lubricating oil box, the upper end of the outer wall of the lubricating oil box is provided with the oil injection pipeline, the inner wall of the lubricating oil box is provided with the grease gun pump, the outer wall of the grease gun pump is provided with the oil outlet pipe, the oil gun port is arranged on the outer wall of the oil outlet pipe, and the oil gun port is connected with the outer wall of the packing, so that the lubricating effect on the packing is realized, the oil leakage of the device caused by excessive abrasion of the packing is prevented, the production efficiency is low, and the problem of the oil leakage of the device caused by excessive abrasion of the packing is solved.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a front elevational view of the structure of the present invention;
FIG. 3 is a schematic view of a portion of a first pump according to the present invention;
FIG. 4 is a schematic view of a part of the structure of a first hydraulic cylinder according to the present invention;
FIG. 5 is a schematic diagram of a protection module according to the present invention;
FIG. 6 is a schematic diagram of a portion of a pump of a grease gun according to the present invention;
FIG. 7 is a schematic view of the structure of the upper protective sheath according to the present invention;
FIG. 8 is a schematic diagram of the structure of the lower protective sheath according to the present invention;
FIG. 9 is a schematic view of a part of the internal structure of the present invention;
FIG. 10 is a schematic view of the internal structure of a part of the upper boot of the present invention;
FIG. 11 is a schematic view of a part of the internal structure of the lower protective sheath according to the present invention;
FIG. 12 is an enlarged schematic view of the portion A of FIG. 9 in accordance with the present invention;
fig. 13 is an enlarged schematic view of the portion B of fig. 11 according to the present invention.
Detailed Description
The present invention is described in further detail below with reference to the drawings and examples to enable those skilled in the art to practice the invention by referring to the description.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1 to 5, the present invention provides a packing box for a wellhead of a pumping unit, comprising: packing box main part 100, packing box main part 100 is including supporting base 1, packing box body 3 installs in the top of supporting base 1, install the packing 5 that corresponds with polished rod 11 in the packing box body 3, polished rod 11 passes and supports base 1, support 1 inner wall bottom and install first oil box 6, first oil box 6 inner wall bottom installs first pump 61, install first oil pipe 62 on the first pump 61 outer wall, first oil pipe 62 outer wall cover is equipped with filter screen 63, install second oil pipe 64 on the first pump 61 outer wall, and second oil pipe 64 runs through first oil box 6 and supports 1 outer wall extension of base. When the above packing box main body 100 leaks crude oil, the first pump 61 is started to pump the crude oil after the filter screen 63 filters impurities into the second oil pipe 64 through the first oil pipe 62, and the second oil pipe 64 is connected with the external collecting box to discharge crude oil, so that the crude oil collecting and discharging function of the packing box main body 100 is realized, pollution of crude oil to the in-well environment is prevented, and the problem of environmental pollution caused by oil leakage of the packing box is solved.
Further, a splash guard 13 is installed at the upper end of the outer wall of the supporting base 1, an oil leakage duct 12 is installed at the upper end of the outer wall of the supporting base 1, a second oil box 14 is installed at the upper end of the inner wall of the supporting base 1, a third oil pipe 15 is installed at the bottom of the outer wall of the second oil box 14, and the bottom of the outer wall of the third oil pipe 15 is communicated with the upper end of the outer wall of the first oil box 6. Wherein, above-mentioned splash guard 13 plays and prevents crude oil and reveal the splash effect, and oil leak pore 12 plays and gathers leaking crude oil effect, and third oil pipe 15 plays the effect of connecting second oil casing 14 and first oil casing 6.
Further, install movable rod 2 in support base 1 outer wall upper end, and movable rod 2 outer wall encircles there is buffer spring 201, install polished rod 11 at support base 1 outer wall upper end, be equipped with packing box body 3 at movable rod 2 outer wall cover, further, install gland 31 at packing box body 3 outer wall upper end, and polished rod 11 runs through gland 31 outer wall and stretches out, further, install hold-down bolt 32 at gland 31 outer wall upper end, packing 5 is installed to packing box body 3 inner wall, packing 5 outer wall and polished rod 11 hugs closely.
The hold-down bolt 32 plays a role in holding down the gland 31, the movable rod 2 and the buffer spring 201 play a role in buffering the axial force movement of the packing box body 3, the splash guard 13 plays a role in preventing crude oil from leaking and splashing, the oil leakage hole 12 plays a role in collecting leaked crude oil, and the third oil pipe 15 plays a role in connecting the second oil box 14 and the first oil box 6.
Further, a first hydraulic cylinder 4 is installed on the outer wall of the packing box body 3, a first hydraulic rod 41 is installed on the outer wall of the first hydraulic cylinder 4, a first limiting block 42 is installed on the outer wall of the first hydraulic rod 41, and the first limiting block 42 is tightly attached to the outer wall of the packing 5. Further, a second hydraulic cylinder 43 is installed on the outer wall of the packing box body 3, a second hydraulic rod 44 is installed on the outer wall of the second hydraulic cylinder 43, and a second limiting block 45 is installed on the outer wall of the second hydraulic rod 44, so that the second limiting block 45 is tightly attached to the outer wall of the packing 5.
When the novel polishing rod centering device is used, the first hydraulic cylinder 4 and the second hydraulic cylinder 43 are started, the first hydraulic cylinder 4 and the second hydraulic cylinder 43 respectively drive the first hydraulic rod 41 and the second hydraulic rod 44 to stretch and retract, the first hydraulic rod 41 and the second hydraulic rod 44 respectively drive the first limiting block 42 and the second limiting block 45 to stretch and retract, the first limiting block 42 and the second limiting block 45 push the packing 5, centering effect on the polished rod 11 is achieved, centering of the polished rod 11 is guaranteed, oil leakage caused by abrasion of the polished rod 11 is prevented, and production is affected.
Further, the outer wall of the packing box body 3 is provided with a lubricating oil box 7, the upper end of the outer wall of the lubricating oil box 7 is provided with an oil injection pipeline 71, the inside of the lubricating oil box 7 is provided with a grease gun pump 72, the outer wall of the grease gun pump 72 is provided with an oil outlet pipe 73, the outer wall of the oil outlet pipe 73 is provided with an oil gun port 74, and the oil gun port 74 is connected with the outer wall of the packing 5.
Wherein, here operating personnel can pour into the lubricating oil box 7 with lubricating oil from the oil filler pipe 71, the grease gun pump 72 starts, the grease gun pump 72 carries the inside lubricating oil of lubricating oil box 7 to the play oil pipe 73 in, play oil pipe 73 connection oil muzzle 74, the oil muzzle 74 pours into the packing 5 outer wall with the inside lubricating oil of play oil pipe 73 into, packing 5 absorbs lubricating oil, the lubrication effect to packing 5 has been realized, prevent packing 5 excessive wear and lead to the device oil leak, production efficiency is low, the problem that packing 5 excessive wear leads to the device oil leak has been solved.
As shown in fig. 6-13, further, the support base 1 is further provided with a protection module 8, the upper end of the protection module 8 is communicated with the bottom of the packing box 3, and the protection module 8 is sleeved on the polish rod 11, so that the protection module 8 shields the polish rod 11 when the polish rod 11 moves, prevents external dust from sticking to the polish rod 11, and causes accumulation at the bottom of the packing box 3 to combine with leaked oil to form greasy dirt.
The protection module 8 here comprises an upper protection sleeve 81, a lower protection sleeve 82, wherein the lower protection sleeve 82 is mounted on the support base 1, and the upper protection sleeve 81 is mounted on the lower protection sleeve 82, in particular, such that the polish rod 11 is inserted in the upper protection sleeve 81, the lower protection sleeve 82.
Further, since the packing box body 3 needs to be maintained inside the packing box body 3 after being used for a long time, and meanwhile, the protection module 8 needs to be maintained, the upper protection sleeve 81 and the lower protection sleeve 82 need to be conveniently detached and also conveniently and rapidly assembled, so that the upper part of the outer wall of the upper protection sleeve 81 is movably provided with the claw mechanism 83, the lower part is provided with the oil leakage prevention outer sleeve 84, the upper part of the outer wall of the lower protection sleeve 82 is correspondingly provided with the oil leakage prevention inner sleeve 85 corresponding to the oil leakage prevention outer sleeve 84 and the plurality of claw seat blocks 86 corresponding to the claw mechanism 83, when the lower protection sleeve 82 is firstly arranged on the supporting base 1, an operator aligns the upper protection sleeve 81 to the lower protection sleeve 82, and then the upper end of the lower protection sleeve 82 enters the oil leakage prevention outer sleeve 84, and then the claw mechanism 83 can be fixed to the plurality of claw seat blocks 86, so that the upper protection sleeve 81 and the lower protection sleeve 82 are connected, and when the upper protection sleeve 82 is connected with the lower protection sleeve 82, the upper protection sleeve 85 is separated from the upper protection sleeve 85, and the lower protection sleeve 85 need to be separated from the upper protection sleeve 85, and the upper protection sleeve 85 is further separated from the lower protection sleeve 85.
Through the design of above-mentioned structure, go up lag 81, lower lag 82 and can conveniently install, provide follow-up maintenance efficiency greatly, can split upper lag 81, lower lag 82 about fast, and can fast assembly after the maintenance, simple to use, use cost is lower.
Further, the above-mentioned oil leakage preventing inner sleeve 85 is slidably mounted on the upper portion of the outer wall of the lower protecting sleeve 82, in order to correspondingly butt-joint the oil leakage preventing inner sleeve 85 and the oil leakage preventing outer sleeve 84, so that oil on the polish rod 11 is leaked between the upper protecting sleeve 81 and the lower protecting sleeve 82, a first oil leakage preventing lip ring 851 and a second oil leakage preventing lip ring 852 are designed on the oil leakage preventing inner sleeve 85, the first oil leakage preventing lip ring 851 is located above the second oil leakage preventing lip ring 852, further, a first wedge-shaped surface 855 is designed on the first oil leakage preventing lip ring 851, and correspondingly, a second wedge-shaped surface 841 is designed on the lower edge of the inner wall of the oil leakage preventing outer sleeve 84, so that when the first oil leakage preventing lip ring 851 enters the oil leakage preventing outer sleeve 84, the first wedge-shaped surface 855 contacts the second wedge-shaped surface 841, and the second wedge-shaped surface 841 plays a role of reducing friction, so that the first oil leakage preventing lip ring 851 can continuously enter the oil leakage preventing outer sleeve 84;
therefore, the first oil leakage preventing lip ring 851 can enter the oil leakage preventing jacket 84 to completely fill the oil leakage preventing jacket 84, the first oil leakage preventing lip ring 851 is further provided with an oil leakage preventing groove 853, and an oil leakage preventing pad 854 is mounted in the oil leakage preventing groove 853, so that the oil leakage preventing pad 854 is further attached to the oil leakage preventing jacket 84 to play a role in oil leakage prevention.
Further, since the polish rod 11 needs to move up and down and the temperature of the oil well for oil extraction is up to 80 ℃ or higher, the high temperature gas needs to be discharged to prevent the high temperature gas from influencing the movement of the polish rod 11 in the upper and lower protective sleeves 81 and 82 due to excessive high temperature gas, the claw block 86 is further provided with the heat dissipation cylinder 861, the lower protective sleeve 82 is provided with the first heat dissipation opening 821, the first heat dissipation opening 821 is positioned in the heat dissipation cylinder 861, and the inner oil leakage prevention member 822 is arranged in the first heat dissipation opening 821, so the high temperature gas in the upper and lower protective sleeves 81 and 82 can prop the inner oil leakage prevention member 822 open, and then the high temperature gas is discharged to the heat dissipation cylinder 861 through the first heat dissipation opening 821.
The inner leak-proof member 822 includes an inner leak-proof cover 823, an inner spring 824 and a ball 825, wherein the inner leak-proof cover 823 is mounted at the outer end of the first heat dissipation opening 821, a plurality of hollow grooves 826 are formed in the inner leak-proof cover 823, the inner spring 824 and the ball 825 are mounted in the first heat dissipation opening 821, the inner spring 824 is propped between the inner leak-proof cover 823 and the ball 825, so that the ball 825 is blocked at the inner end of the first heat dissipation opening 821, when the ball 825 partially extends out of the first heat dissipation opening 821 and contacts the polish rod 11, the ball 825 is driven to rotate when the polish rod 11 moves, and since the ball 825 slidingly rolls at the inner end of the first heat dissipation opening 821, a gap is formed between the ball 825 when the ball 825 rolls, high-temperature gas can be conveniently discharged, and the high-temperature gas can be temporarily stored in the heat dissipation cylinder 861;
because the above-mentioned stop lever 87 is inserted into the heat-dissipating cylinder 861, the high-temperature gas will push against the lower end of the stop lever 87, so the stop lever 87 will move the oil-leakage-preventing inner sleeve 85 upwards on the outer wall of the lower protecting sleeve 82, and the first oil-leakage-preventing lip ring 851 on the oil-leakage-preventing inner sleeve 85 will push against the oil-leakage-preventing outer sleeve 84 more firmly under the action of the hook mechanism 83, further increasing the oil leakage-preventing performance between the upper protecting sleeve 81 and the lower protecting sleeve 82.
Further, an auxiliary mechanism 88 is further installed on the lower protection sleeve 82, wherein the high temperature gas exhausted from the upper protection sleeve 81 and the lower protection sleeve 82 is temporarily stored by the auxiliary mechanism 88, so as to realize the oil leakage prevention effect of the first oil leakage prevention lip ring 851;
specifically, the auxiliary mechanism 88 includes an auxiliary slip ring 881 and a plurality of outer auxiliary cylinders 882, wherein the auxiliary slip ring 881 is mounted on the lower protecting sleeve 82, and the plurality of outer auxiliary cylinders 882 are mounted on the lower protecting sleeve 82 and are sleeved on the heat dissipation cylinder 861, wherein a first end cap 862 and a pressure plate 863 are mounted at the lower end of the heat dissipation cylinder 861, a second end cap 883 is mounted at the lower end of the outer auxiliary cylinder 882, so the second end cap 883 corresponds to the first end cap 862, and an auxiliary guide rod 884 and an auxiliary spring (not shown) are mounted on the second end cap 883, wherein the auxiliary guide rod 884 is inserted into the first end cap 862, the upper end of the auxiliary guide rod 884 has an auxiliary baffle 886, the auxiliary baffle 886 abuts against the pressure plate 863, and the auxiliary spring abuts against the space between the first end cap 862 and the second end cap 883, so the auxiliary baffle 886 can act to temporarily block the high-temperature gas, so that the high-temperature gas abuts against the above-mentioned limit rod 87. When the polish rod 11 stops working, the high temperature gas stored in the heat dissipation cylinder 861 is gradually discharged to the outside through the first end cover 862 and the plurality of second heat dissipation openings 885 further formed on the second end cover 883, so as to facilitate the subsequent use.
Further, the above-mentioned claw mechanism 83 includes a claw slip ring 831, a claw spring 832 and a plurality of L-shaped claw bars 833, wherein the upper portion of the outer wall of the upper protecting sleeve 81 is designed with a fixing ring 811, the claw slip ring 831 is slidably mounted on the upper portion of the outer wall of the upper protecting sleeve 81 and above the fixing ring 811, the claw spring 832 is mounted on the outer wall of the upper protecting sleeve 81 and abuts against the fixing ring 811 and the claw slip ring 831, further, a plurality of first claw bar fixing seats 834 are mounted on the claw slip ring 831, and correspondingly, a plurality of second claw bar fixing seats 812 are mounted on the fixing ring 811, so that the L-shaped claw bars 833 can be mounted on the first claw bar fixing seats 834 and the second claw bar fixing seats 812, specifically, the middle part of the L-shaped claw rod 833 can be hinged between the second claw rod fixing seats 812, wherein an inner chute 835 is formed at the upper end of the L-shaped claw rod 833, and the first claw rod fixing seat 834 is penetrated in the inner chute 835, so when an operator moves the claw slip ring 831 downwards on the upper protecting sleeve 81 and then abuts against the claw spring 832 to compress the claw spring 832, the lower end of the L-shaped claw rod 833 is opened, the lower end of the L-shaped claw rod 833 can correspond to the claw seat block 68, then the claw slip ring 831 is released, the claw slip ring 831 moves upwards under the action of the claw spring 832, the lower end of the L-shaped claw rod 833 is fixed in the claw seat block 68, and the claw spring 832 continuously abuts against the fixing rings 811 and the claw slip ring 831;
and a plurality of auxiliary fixing plates 836 are further installed on the claw slip ring 831, and an inner fixing groove 837 is formed at the lower end of the inner wall of the auxiliary fixing plate 836, so that the claw mechanism 83 can be fixed to the fixing ring 811 by a plurality of auxiliary fixing plates 836, so that when an operator pushes the claw slip ring 831 downward so that the inner fixing groove 837 at the lower end of the auxiliary fixing plate 836 is clamped to the fixing ring 811, the claw slip ring 831 is released, and the claw slip ring 831 is moved in place under the action of the claw spring 832, so that the claw mechanism 83 is convenient to use and install and subsequent disassemble.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (10)
1. The utility model provides a beam-pumping unit wellhead packing box which characterized in that includes:
packing box main part (100), packing box main part (100) are including supporting base (1), packing box body (3) set up in the top of supporting base (1), be provided with packing (5) that correspond with polished rod (11) in packing box body (3), polished rod (11) pass and support base (1), support base (1) inner wall bottom is provided with first oil box (6), first oil box (6) inner wall bottom is provided with first pump (61), be provided with first oil pipe (62) on first pump (61) outer wall, first oil pipe (62) outer wall cover is equipped with filter screen (63), be provided with second oil pipe (64) on first pump (61) outer wall, second oil pipe (64) run through first oil box (6) and support base (1) outer wall and stretch out.
2. The wellhead packing box of the pumping unit according to claim 1, characterized in that a splash guard (13) is arranged at the upper end of the outer wall of the supporting base (1), an oil leakage duct (12) is arranged at the upper end of the outer wall of the supporting base (1), a second oil box (14) is arranged at the upper end of the inner wall of the supporting base (1), a third oil pipe (15) is arranged at the bottom of the outer wall of the second oil box (14), and the bottom of the outer wall of the third oil pipe (15) is communicated with the upper end of the outer wall of the first oil box (6).
3. The packing box for the wellhead of the pumping unit according to claim 1, wherein a plurality of movable rods (2) are arranged at the upper end of the outer wall of the supporting base (1), the packing box body (3) is arranged at the upper end of the movable rods (2), a gland (31) is arranged at the upper end of the outer wall of the packing box body (3), the polish rod (11) extends out through the outer wall of the gland (31), and a compression bolt (32) is arranged at the upper end of the outer wall of the gland (31).
4. A wellhead packing box for a pumping unit according to claim 3, characterized in that a first hydraulic cylinder (4) is arranged on the outer wall of the packing box body (3), a first hydraulic rod (41) is arranged on the outer wall of the first hydraulic cylinder (4), a first limiting block (42) is arranged on the outer wall of the first hydraulic rod (41), and the first limiting block (42) is tightly attached to the outer wall of the packing (5).
5. The packing box for the wellhead of the pumping unit according to claim 4, wherein a second hydraulic cylinder (43) is arranged on the outer wall of the packing box body (3), a second hydraulic rod (44) is arranged on the outer wall of the second hydraulic cylinder (43), a second limiting block (45) is arranged on the outer wall of the second hydraulic rod (44), and the second limiting block (45) is tightly attached to the outer wall of the packing (5).
6. The oil pumping unit wellhead packing box according to claim 5, characterized in that a lubricating oil box (7) is arranged on the outer wall of the packing box body (3), an oil injection pipeline (71) is arranged at the upper end of the outer wall of the lubricating oil box (7), a grease gun pump (72) is arranged in the lubricating oil box (7), an oil outlet pipe (73) is arranged on the outer wall of the grease gun pump (72), an oil gun port (74) is arranged on the outer wall of the oil outlet pipe (73), and the oil gun port (74) is connected with the outer wall of the packing (5).
7. A wellhead packing box for a pumping unit according to claim 1 or 3, characterized in that a protection module (8) is arranged on the supporting base (1), the upper end of the protection module (8) is communicated with the bottom of the packing box body (3), the protection module (8) comprises an upper protection sleeve (81) and a lower protection sleeve (82), the lower protection sleeve (82) is arranged on the supporting base (1), the upper protection sleeve (81) is connected to the lower protection sleeve (82), the polish rod (11) is arranged in the upper protection sleeve (81) and the lower protection sleeve (82) in a penetrating manner, a claw mechanism (83) is movably arranged at the upper part of the outer wall of the upper protection sleeve (81), an oil leakage prevention outer sleeve (84) is arranged at the lower part of the outer wall of the lower protection sleeve (82), an oil leakage prevention inner sleeve (85) corresponding to the oil leakage prevention outer sleeve (84) and a plurality of claw seat blocks (86) corresponding to the claw mechanism (83) are arranged at the upper part of the outer wall of the lower protection sleeve (82), and the oil leakage prevention inner sleeve (85) is connected with the claw seat blocks (86) through a plurality of limiting rods (87).
8. The wellhead packing box of a pumping unit according to claim 7, characterized in that the oil leakage preventing inner sleeve (85) is slidingly arranged on the lower protecting sleeve (82), a first oil leakage preventing lip ring (851) and a second oil leakage preventing lip ring (852) are arranged on the oil leakage preventing inner sleeve (85), an oil leakage preventing groove (853) is arranged on the first oil leakage preventing lip ring (851), an oil leakage preventing pad (854) is arranged in the oil leakage preventing groove (853), a first wedge-shaped surface (855) is arranged on the first oil leakage preventing lip ring (851), and a second wedge-shaped surface (841) is arranged at the lower edge of the inner wall of the oil leakage preventing outer sleeve (84).
9. The oil pumping unit wellhead packing box according to claim 7, characterized in that a heat dissipation cylinder (861) is arranged in the claw seat block (86), a first heat dissipation opening (821) is arranged on the lower protective sleeve (82), the first heat dissipation opening (821) is located in the heat dissipation cylinder (861), an inner oil leakage prevention piece (822) is arranged in the first heat dissipation opening (821), the inner oil leakage prevention piece (822) comprises an inner leakage prevention cover (823), an inner pressure spring (824) and a ball (825), the inner leakage prevention cover (823) is arranged at the outer end of the first heat dissipation opening (821), a plurality of hollow grooves (826) are formed in the inner leakage prevention cover (823), the inner pressure spring (824) and the ball (825) are arranged in the first heat dissipation opening (821), and the inner pressure spring (824) is propped against the inner leakage prevention cover (825) and the ball (825) so that the ball (825) is blocked at the inner end of the first heat dissipation opening (821).
10. The oil pumping unit wellhead packing box according to claim 9, characterized in that an auxiliary mechanism (88) is further arranged on the lower protective sleeve (82), the auxiliary mechanism (88) comprises an auxiliary slip ring (881) and a plurality of outer auxiliary cylinders (882), the auxiliary slip ring (881) is arranged on the lower protective sleeve (82), the outer auxiliary cylinders (882) are arranged on the lower protective sleeve (82) and are sleeved on the heat dissipation cylinder (861), a first end cover (862) and a pressing plate (863) are arranged at the lower end of the heat dissipation cylinder (861), a second end cover (883) is arranged at the lower end of the outer auxiliary cylinder (882), an auxiliary guide rod (884) and an auxiliary spring are arranged on the second end cover (883), the auxiliary guide rod (884) is arranged in the first end cover (862) in a penetrating manner and abuts against the pressing plate (863), the auxiliary spring abuts against the first end cover (862) and the second end cover (883), and a plurality of second heat dissipation openings (885) are further arranged on the second end cover (883).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310972257.2A CN116892375A (en) | 2023-08-03 | 2023-08-03 | Pumping unit wellhead packing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310972257.2A CN116892375A (en) | 2023-08-03 | 2023-08-03 | Pumping unit wellhead packing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116892375A true CN116892375A (en) | 2023-10-17 |
Family
ID=88310763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310972257.2A Withdrawn CN116892375A (en) | 2023-08-03 | 2023-08-03 | Pumping unit wellhead packing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116892375A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117823075A (en) * | 2024-01-15 | 2024-04-05 | 大连明强塑料机械有限公司 | Packing sealing device of oil pumping unit |
-
2023
- 2023-08-03 CN CN202310972257.2A patent/CN116892375A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117823075A (en) * | 2024-01-15 | 2024-04-05 | 大连明强塑料机械有限公司 | Packing sealing device of oil pumping unit |
| CN117823075B (en) * | 2024-01-15 | 2024-07-16 | 大连明强塑料机械有限公司 | Packing sealing device of oil pumping unit |
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| PB01 | Publication | ||
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Application publication date: 20231017 |