CN2289053Y - Oil well hydraulic plunger sealing suction blow-out preventer - Google Patents
Oil well hydraulic plunger sealing suction blow-out preventer Download PDFInfo
- Publication number
- CN2289053Y CN2289053Y CN 96248769 CN96248769U CN2289053Y CN 2289053 Y CN2289053 Y CN 2289053Y CN 96248769 CN96248769 CN 96248769 CN 96248769 U CN96248769 U CN 96248769U CN 2289053 Y CN2289053 Y CN 2289053Y
- Authority
- CN
- China
- Prior art keywords
- plunger
- packing
- sealing
- oil well
- diameter
- 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.)
- Expired - Fee Related
Links
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model relates to an oil well hydraulic plunger sealing suction anti-spray device, belonging to the field of an anti-spray device for an oil well. The oil well hydraulic plunger sealing suction anti-spray device is composed of a plunger, a plunger upper sleeve, a disk root pressing cylinder sleeve, a compression spring, a sealing press head, a sealing disk root, a disk root inner pad, a disk root outer sleeve, a sealing ring, and a high pressure bend head component. The plunger, the compression spring, the sealing press head, the sealing disk root, and the disk root inner pad are positioned in the oil well hydraulic plunger sealing suction anti-spray device; the disk root pressing cylinder sleeve and the disk root outer sleeve are positioned outside the oil well hydraulic plunger sealing suction anti-spray device, and are connected by threads. The sealing disk root is a long cylinder, and is made of an oil resistant and wear resistant material. The elastic degree of a disk root is adjusted by a manual hydraulic pump. The utility model has good sealing effect, long service life, convenient operation, labor saving, and safety.
Description
The utility model relates to the oil well preventer, particularly is a kind of oil well hydraulic plunger sealing suction blowout hookup.
Existing oil well suction blowout hookup is called the blowout prevention box, is made up of parts such as tubing nipple, blowout prevention box shell, the flat rubber packing of slips and pressure caps.Its pressure cap aperture is 14～16mm, at used wirerope diameter design.This device is withstand voltage generally at 2～3Mpa, the static 5Mpa that reaches.The degree of tightness of its packing is rotated pressure cap by the artificial mechanism mode and is realized.In oil well suction manufacturing process, well head is equipped with one section higher lubricator usually.Therefore, will be during tight packing in work high above the ground, very inconvenient, also dangerous.From structure, adopt flat circular rubber packing not wear-resisting, often change, and sealing effectiveness is relatively poor.
Above-mentioned shortcoming and defect part in view of existing blowout prevention box, the purpose of this utility model just is to provide a kind of oil well hydraulic plunger sealing suction blowout hookup, its aperture further increases, withstand voltage further raising, packing structure and material all have the raising of improvement, and its anti-wear performance and application life further improve, and sealing effectiveness is also better, the tense-lax packing can be finished on ground, very convenient and safety.
Above-mentioned purpose is realized by following technical proposals: oil well hydraulic plunger sealing suction blowout hookup compresses in cylinder sleeve, compression spring, sealing pressure head, sealed packing, the packing pad, packing overcoat, sealing ring and high pressure elbow parts by cover, packing on plunger, the plunger and forms.Plunger first half outside is to overlap on the plunger, outwards is that packing compresses cylinder sleeve again.The sealing pressure head is pushed down in the plunger lower end, and sealed packing is pushed down in sealing pressure head lower end, and pad in the packing is pushed down in the sealed packing lower end.Packing overcoat epimere has external screw thread, compresses the screw-internal thread fit of cylinder sleeve hypomere with packing.In the above toroidal cavity in packing overcoat upper surface the compression spring is housed, compression spring upper end withstands on below the big boss of plunger cylindrical.Sealing ring is on plunger, the plunger and overlaps, packing compresses on the cylinder sleeve three fitting face.The high pressure elbow parts are installed in the packing hold-down cylinder cover first half, are in the above high pressure liquid body cavity position of the big boss of plunger cylindrical.
Plunger diameter of bore in the above-mentioned blowout hookup is 16～43mm, and there is a big boss in its cylindrical stage casing, a small boss, and a small stair, big boss compress the interior circle of cylinder sleeve stage casing with packing and cooperate, and small boss cooperates with the interior circle of cover on the plunger with the upper part.
Packing overcoat bottom diameter of bore 16～43mm in the above-mentioned blowout hookup, the remainder internal diameter is identical with plunger outer diameter.External screw thread place external diameter maximum is arranged at its cylindrical top, and middle part external diameter minimum, lower outer diameter are slightly larger than the middle part and external screw thread is arranged.
Sealing pressure head in the above-mentioned blowout hookup is a two halves assembling combination cylinder, the centre is linked into one with screw, its internal diameter and the suction wire rope between for movingly, its cylindrical Lower Half external diameter and packing outer casing internal diameter be for movingly, its cylindrical first half external diameter less than plunger outer diameter greater than the plunger internal diameter.Its upper end is the plane, and the lower end is the horn mouth conical surface.
Sealed packing in the above-mentioned blowout hookup is an elongated cylinder, and its top is conical, and consistent with sealing pressure head lower end horn mouth conical surface shape, this packing selects for use oil resistant abrasive rubber material to make.
Packing in the above-mentioned blowout hookup compresses the cylinder sleeve internal diameter and is divided into dispar three sections, and there is one section internal diameter minimum at its upper port place, matches with the place, thin footpath of cover cylindrical on the plunger; Middle one section internal diameter matches with the big boss of plunger cylindrical, and a radial screw bore is arranged at its top; The one section internal diameter maximum in bottom, and there is internal thread the end, and a radial screw bore is arranged more than the internal thread.
High pressure elbow parts one end in the above-mentioned blowout hookup is installed in the radial screw bore on packing hold-down cylinder cover top, and the other end and hydraulic hand-pump pipeline link.
Pad is two assembling combination planchets in the packing in the above-mentioned blowout hookup, the monolithic planchet has a groove, the top of groove is semicircle, its width and suction wire rope are for movingly, have and the convex body of groove on the same line on its one side, the groove of convex body and another sheet is for movingly, and pad internal diameter and suction wirerope diameter are for movingly in the packing, and external diameter and packing outer casing internal diameter are for movingly.
This blowout hookup is installed on the pumpingh well, and the suction wire rope passes from its plunger cavity and sealing pressure head, sealed packing, adjusts the elasticity of sealed packing by hydraulic hand-pump, can play the excellent sealing effect.
The utility model is compared with the prior art, and its major advantage is: simple and reasonable for structure, compact.Plunger and packing overcoat adopt the large aperture, increase to ∮ 14～43mm by ∮ 14～16mm, and maximum can make ∮ 42mm rope socket by blowout hookup, have avoided work such as each suction cut of rope cap, filling rope socket.Sealed packing has changed planform and material, has further improved anti-wear performance, and can improve 12 times application life, and sealing effectiveness takes a favorable turn, and withstand voltage reaching more than the 10Mpa can reach 30Mpa under the quiescent conditions.Because good sealing effect so well head is pollution-free, helps carrying out production strictly in line with rules and regulations.Since adopt the ground hydraulic hand-pump to adjust the tightness of sealed packing, very convenient, laborsaving and safety, and can in time adjust at random, alleviate mechanical load and wearing and tearing effectively.
Accompanying drawing is the structural representation of oil well hydraulic plunger sealing suction blowout hookup.
In conjunction with the accompanying drawings embodiment of the present utility model is described below:
Among the figure, the 1st, plunger, the 2nd, overlap on the plunger, the 3rd, packing compresses cylinder sleeve, and the 4th, the high pressure elbow parts, the 5th, the compression spring, the 6th, the sealing pressure head, the 7th, sealed packing, the 8th, the packing overcoat, the 9th, pad in the packing, the 10th, sealing ring, A are hydraulic cavities, and B is a spring cavity, and C is a gas port.
As seen from the figure, the assembling sequence of this blowout hookup is: earlier three sealing rings 10 are contained on the plunger on the cover 2 and plunger 1, again cover on the plunger 1 is put into packing and compress cylinder sleeve 3, again plunger 1 upper end is packed into and overlap 2 on the plunger, to seal the bottom that pressure head 6 first halves are inserted in plunger 1 again, and then put into and compress spring 5, in packing overcoat 8, pack into successively again pad 9 and packing 7 in the packing, make packing compress buckle on the external screw thread of the internal thread of lower end of cylinder sleeve 3 and packing overcoat 8 upper ends again, the lower end that seal pressure head 6 this moment just is pressed on the packing 7, and the packing upper end inner convex platform that compresses cylinder sleeve 3 is just pushed down the cylindrical step of cover 2 on the plunger; Load onto high pressure elbow parts 4 at last.Packing overcoat 8 lower end external screw threads connect installation with lubricator box cupling internal thread, and the center is the suction wire rope.
The operating principle of this blowout hookup is: when needs tighten sealed packing 7, just with manually removing the operate ground hydraulic hand-pump, make the A chamber produce hydraulic pressure.Plunger 1 is promoted downwards by highly pressurised liquid, and promotes sealing pressure head 6 and sealed packing 7 successively and move down.Gas in the B chamber is discharged from the C hole, to reduce resistance.Sealed packing 7 is produced expanded radially by axial compression, and tightr between its endoporus and the suction wire rope, sealing is higher, the also corresponding increase of its frictional force.When needs loosen sealed packing 7, just suitably lay down A cavity segment highly pressurised liquid, its pressure is descended, when pressure during less than the top power of compression spring 5, plunger 1 is promptly moved up by the top, so sealed packing 7 is thereupon axial expansion and radial contraction, sealing descends between its endoporus and the suction wire rope, and its frictional force is also corresponding to be reduced.
Claims (8)
1, a kind of oil well hydraulic plunger sealing suction blowout hookup, it is characterized in that by plunger, overlap on the plunger, packing compresses cylinder sleeve, the compression spring, the sealing pressure head, sealed packing, pad in the packing, the packing overcoat, sealing ring and high pressure elbow parts are formed, plunger first half outside is to overlap on the plunger, outwards be that packing compresses cylinder sleeve again, the sealing pressure head is pushed down in the plunger lower end, sealed packing is pushed down in sealing pressure head lower end, pad in the packing is pushed down in the sealed packing lower end, packing overcoat epimere has external screw thread, compress the screw-internal thread fit of cylinder sleeve hypomere with packing, in the toroidal cavity more than the packing overcoat upper surface compression spring is housed, compression spring upper end withstands on below the big boss of plunger cylindrical, sealing ring is in plunger, overlap on the plunger, packing compresses on the cylinder sleeve three fitting face, the high pressure elbow parts are installed in the packing hold-down cylinder cover first half, are in the above high pressure liquid body cavity position of the big boss of plunger cylindrical.
2, oil well hydraulic plunger sealing suction blowout hookup according to claim 1, it is characterized in that the plunger diameter of bore is 16～43mm, there is a big boss in its cylindrical stage casing, a small boss, a small stair, big boss compresses the interior circle of cylinder sleeve stage casing with packing and cooperates, and small boss cooperates with the interior circle of cover on the plunger with the upper part.
3, oil well hydraulic plunger sealing suction blowout hookup according to claim 1, it is characterized in that packing overcoat bottom diameter of bore is 16～43mm, the remainder internal diameter is identical with plunger outer diameter, external screw thread place external diameter maximum is arranged at its cylindrical top, middle part external diameter minimum, lower outer diameter are slightly larger than the middle part and external screw thread are arranged.
4, oil well hydraulic plunger sealing suction blowout hookup according to claim 1, it is characterized in that sealing pressure head is two halves assembling combination cylinder, the centre is linked into one with screw, internal diameter and the suction wire rope between for movingly, its cylindrical Lower Half external diameter and packing outer casing internal diameter are for movingly, greater than the plunger internal diameter, its upper end is the plane to its cylindrical first half external diameter less than plunger outer diameter, and the lower end is the horn mouth conical surface.
5, oil well hydraulic plunger sealing suction blowout hookup according to claim 1 is characterized in that sealed packing is an elongated cylinder, and its top is conical, and consistent with sealing pressure head lower end horn mouth conical surface shape, this packing selects for use oil resistant abrasive rubber material to make.
6, oil well hydraulic plunger sealing suction blowout hookup according to claim 1 is characterized in that packing compresses the cylinder sleeve internal diameter and is divided into three sections that do not wait, and there is one section internal diameter minimum at its upper port place, matches with the place, thin footpath of cover cylindrical on the plunger; Middle one section internal diameter matches with the big boss of plunger cylindrical, and a radial screw bore is arranged at its top; The one section internal diameter maximum in bottom, and there is internal thread the end, and a radial screw bore is arranged more than the internal thread.
7, oil well hydraulic plunger sealing suction blowout hookup according to claim 1 is characterized in that high pressure elbow parts one end is installed in the radial screw bore on packing hold-down cylinder cover top, and the other end and hydraulic hand-pump pipeline link.
8, oil well hydraulic plunger sealing suction blowout hookup according to claim 1, it is characterized in that pad is two assembling combination planchets in the packing, the monolithic planchet has a groove, the top of groove is semicircle, its width and suction wire rope have and the convex body of groove on the same line on its one side for movingly, and the groove of convex body and another sheet is for movingly, pad internal diameter and suction wirerope diameter are for movingly in the packing, and external diameter and packing outer casing internal diameter are for movingly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96248769 CN2289053Y (en) | 1996-12-21 | 1996-12-21 | Oil well hydraulic plunger sealing suction blow-out preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96248769 CN2289053Y (en) | 1996-12-21 | 1996-12-21 | Oil well hydraulic plunger sealing suction blow-out preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2289053Y true CN2289053Y (en) | 1998-08-26 |
Family
ID=33920550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96248769 Expired - Fee Related CN2289053Y (en) | 1996-12-21 | 1996-12-21 | Oil well hydraulic plunger sealing suction blow-out preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2289053Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971546A (en) * | 2016-07-12 | 2016-09-28 | 泸州聚源石油科技有限公司 | Blowout preventer for steel wire and cable |
-
1996
- 1996-12-21 CN CN 96248769 patent/CN2289053Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971546A (en) * | 2016-07-12 | 2016-09-28 | 泸州聚源石油科技有限公司 | Blowout preventer for steel wire and cable |
| CN105971546B (en) * | 2016-07-12 | 2019-05-24 | 泸州聚源石油科技有限公司 | Preventer suitable for steel wire and cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107355194A (en) | A kind of annular preventer | |
| CN110107245B (en) | Blowout prevention control tool for wellhead of pumping unit | |
| CN2289053Y (en) | Oil well hydraulic plunger sealing suction blow-out preventer | |
| CN213898920U (en) | Novel polished rod deviation-adjusting sealer for oil pumping unit well head | |
| CN207485399U (en) | A kind of annular preventer | |
| CN213684733U (en) | Pressurizing oil cylinder | |
| CN112303044B (en) | Supercharging oil cylinder | |
| CN2171005Y (en) | Well head sealing device | |
| CN2367842Y (en) | Compound motive sealing device of superhigh pressure reciprocating rod | |
| CN2156281Y (en) | Well sealing device for oil suction machine with rod | |
| CN111706502A (en) | Sealing device for high-pressure plunger water injection pump packing of offshore oil platform | |
| CN2337311Y (en) | Multi-function well head blow-out preventing box | |
| CN2401692Y (en) | Automatic sealed polish rod packing device | |
| CN2367840Y (en) | Anti-ageing sealing ring for pressure container | |
| CN2608676Y (en) | Oil sucker well head polish rod sealing device | |
| CN2374642Y (en) | Center self-regulating and self-compacting gusher-proof box | |
| CN2479199Y (en) | Multiple-circulation valve | |
| CN2244090Y (en) | Shearing high temperature resistance anti-corrosion oil drainage device | |
| CN2533255Y (en) | Mechanical polish rod sealing device for oil production wellhead | |
| CN2247241Y (en) | Inflator | |
| CN2658377Y (en) | Device for changing gas well casing packer | |
| CN212054588U (en) | Christmas tree wellhead sealing box | |
| CN206636533U (en) | Blowout prevention box | |
| CN2619047Y (en) | Gas control wellhead blowout preventing box | |
| CN2578550Y (en) | Gas lamps |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |