CN205936484U - Anti-spraying type pumping unit packing box pressing cap - Google Patents
Anti-spraying type pumping unit packing box pressing cap Download PDFInfo
- Publication number
- CN205936484U CN205936484U CN201620839718.4U CN201620839718U CN205936484U CN 205936484 U CN205936484 U CN 205936484U CN 201620839718 U CN201620839718 U CN 201620839718U CN 205936484 U CN205936484 U CN 205936484U
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- China
- Prior art keywords
- packing box
- pumping unit
- pressing cap
- box pressing
- cavity
- 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 78
- 238000003825 pressing Methods 0.000 title claims abstract description 47
- 238000005086 pumping Methods 0.000 title claims abstract description 33
- 238000005507 spraying Methods 0.000 title description 2
- 210000004907 gland Anatomy 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 230000001050 lubricating effect Effects 0.000 claims description 25
- 239000000945 filler Substances 0.000 claims description 8
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims 1
- 239000003921 oil Substances 0.000 abstract description 27
- 230000002265 prevention Effects 0.000 abstract description 7
- 238000003912 environmental pollution Methods 0.000 abstract description 4
- 238000005461 lubrication Methods 0.000 abstract description 4
- 239000010779 crude oil Substances 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 10
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 235000014121 butter Nutrition 0.000 description 5
- 239000010721 machine oil Substances 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 229950000845 politef Drugs 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a prevent spouting formula beam-pumping unit packing box pressure cap belongs to oil field oil recovery machinery technical field. This packing box pressure cap is including pressing the cap main part press being provided with in the cap main part: a sealing cavity located at the upper end of the pressure cap main body; the connecting cavity is positioned at the lower end of the pressing cap main body and is used for being communicated with the packing box; a lubrication chamber communicating the seal chamber and the connection chamber; and a blowout preventer cavity located at one side of the pressure cap body and communicated with the lubrication cavity; a gland is arranged in the sealing cavity and provided with a sealing port for accommodating a polished rod of the pumping unit; a blowout prevention ball, a fixed jackscrew for sealing the blowout prevention ball in the blowout prevention device cavity and a spring positioned between the blowout prevention ball and the fixed jackscrew are arranged in the blowout prevention device cavity; the diameter of the blowout prevention ball is larger than that of the sealing port. The packing box pressing cap avoids the problems of crude oil loss, environmental pollution and the like caused by the breaking and the falling of the polish rod.
Description
Technical field
This utility model is related to oil extraction in oil field field of mechanical technique, particularly to a kind of jet proof type oil extractor packing box pressure
Cap.
Background technology
Oil-extractor polish-rod be for realize the connection between sucker rod and polished rod eye and special " sucker rod ", take out due to being in
The topmost of beam hanger, stress is maximum, so the diameter of polished rod is bigger than oil pumping shank diameter, the rank of steel is higher, and surface is more smooth,
One of its Main Function is to combine with the packing in packing box, sealing wellhead, prevents oil, gas and water from revealing.
However, in actual oil extraction in oil field, oil-extractor polish-rod often occurs disconnected de- because of following reason：(1) aspirate
Parameter is excessive, and punching speed is too fast；(2) pumping unit load is excessive, or rod-pumped well occur sand card, wax card phenomenon and make the load of polished rod
Moment increases；(3) in pumpingh well installation process, the artificial error producing makes polished rod misalign with well head；(4) pumping production tree
Installing just does not make polished rod misalign with well head；(5) stratum reason：Viscosity of crude is big, and pumping unit load increases, and descending polished rod is sent out
Raw hysteresis；(6) polished rod is of poor quality, does not reach design strength.Oil-extractor polish-rod break de- after drop in pit shaft, well head pressure
Rapid decline, the liquid in liquid and gathering line in pit shaft can spray at the sealing of wellhead packing box, causes crude oil to let out
Leakage loss and environmental pollution, have a strong impact on carrying out production strictly in line with rules and regulations of oil field.
Utility model content
For solution above-mentioned technical problem, this utility model provides a kind of it can be avoided that oil-extractor polish-rod breaks takes off rear well head oil spout
Beam-pumping unit packing box pressing cap.
Specifically, including following technical scheme：
A kind of jet proof type beam-pumping unit packing box pressing cap, this packing box pressing cap includes pressure cap main body, in described pressure cap main body
It is provided with：
Annular seal space positioned at the upper end of described pressure cap main body；
Positioned at the lower end of described pressure cap main body and for the connecting cavity that connects with packing box；
Connect described annular seal space and the lubricating cavity of described connecting cavity；And
The blowout hookup chamber connecting positioned at the side of described pressure cap main body and with described lubricating cavity；
And, described sealing intracavity is provided with gland, and described gland has the seal for accommodating oil-extractor polish-rod；
Described blowout hookup intracavity is provided with spray-proof ball, described spray-proof ball is sealed in the fixation of described blowout hookup intracavity
Jackscrew and be located at spring between described spray-proof ball and described fixing jackscrew；
The diameter with diameter greater than described seal of described spray-proof ball.
Preferably, described annular seal space, described connecting cavity, described lubricating cavity and described blowout hookup chamber are cylinder
Chamber.
Preferably, described spray-proof ball is made up of politef.
Further, the side of described pressure cap main body is additionally provided with oil filler point, described oil filler point and described lubricating cavity
Connection.
Preferably, described sealing intracavity be additionally provided with O-ring, described O-ring be located at described gland lower section, and with institute
State gland and be fixedly connected on described sealing intracavity.
Preferably, connected by fixing screws between described gland and described O-ring.
Preferably, one end of described spring is connected with described fixing jackscrew, and the other end of described spring abuts described blowout prevention
Ball.
Preferably, described spring is connected with described fixing jackscrew by way of sheathed.
Preferably, described fixing jackscrew has external screw thread, is connected with the female thread in described blowout hookup chamber.
Preferably, described fixing jackscrew is d-axis screw rod.
Preferably, described connecting cavity has the female thread for connecting with packing box.
Preferably, the internal diameter of described connecting cavity is more than the internal diameter of described lubricating cavity.
The beneficial effect of technical scheme that this utility model embodiment provides is：There is provided a kind of it can be avoided that oil-extractor polish-rod
The beam-pumping unit packing box pressing cap of disconnected de- rear well head oil spout.This utility model avoids oil-extractor polish-rod by the design of spray-proof ball and breaks
After taking off in pit shaft, well head pressure declines rapidly, and the liquid in liquid and gathering line in pit shaft is from wellhead packing box pressure
The seal of cap sprays, and causes oil loss, the problem of production scene pollution.Specifically, take off well when oil-extractor polish-rod breaks
When in cylinder, the lubricating cavity of packing box pressing cap and ft connection, make reduced pressure, spring thus can be to the quick bullet in the low direction of pressure
Go out spray-proof ball, make spray-proof ball quickly move to the lubrication intracavity of packing box pressing cap, simultaneously because well head pressure declines rapidly, pit shaft
In liquid and gathering line in liquid also at the box Mi Kou of the low packing pressure cap of pressure spray, promote spray-proof ball quickly to
On move to the seal of packing box pressing cap, because spray-proof ball is with diameter greater than the diameter of the seal of packing box pressing cap, spray-proof ball
Therefore top has been gone up at the seal of packing box pressing cap, thus efficiently avoid liquid spraying from seal, it is to avoid crude oil damage
The problems such as consumption and production scene are polluted.This apparatus structure is simple, safe and reliable, stable operation, practical and be easy to manufacture, keep away
Exempt from the problems such as oil loss and environmental pollution of causing because of light rod-broken, alleviated the labor intensity of employee, reduce life
Produce cost.
Brief description
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, below will be to required in embodiment description
Accompanying drawing to be used be briefly described it should be apparent that, drawings in the following description are only that of the present utility model some are real
Apply example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
A kind of main view profile of jet proof type beam-pumping unit packing box pressing cap that Fig. 1 provides for this utility model embodiment.
The reference of in figure represents respectively：
1st, pressure cap main body；
2nd, annular seal space；
3rd, connecting cavity；
4th, lubricating cavity；
5th, blowout hookup chamber；
6th, spray-proof ball；
7th, fixing jackscrew；
8th, spring；
9th, gland；
10th, seal；
11st, oil filler point；
12nd, O-ring；
13rd, fixing screws.
Specific embodiment
For making the technical solution of the utility model and advantage clearer, below in conjunction with accompanying drawing, this utility model is implemented
Mode is described in further detail.
This utility model provides a kind of jet proof type beam-pumping unit packing box pressing cap, as shown in figure 1, this packing box pressing cap includes pressing
Cap main body 1, is provided with pressure cap main body 1：
Annular seal space 2 positioned at the upper end of pressure cap main body 1；
Positioned at the lower end of pressure cap main body 1 and for the connecting cavity 3 that connects with packing box；
The lubricating cavity 4 of communication seals chamber 2 and connecting cavity 3；
And it is located at the side of pressure cap main body 1 and the blowout hookup chamber 5 connecting with lubricating cavity 4；
And, it is provided with gland 9 in annular seal space 2, gland 9 has the seal 10 for accommodating oil-extractor polish-rod；
Be provided with blowout hookup chamber 5 spray-proof ball 6, the fixing jackscrew 7 spray-proof ball 6 being sealed in blowout hookup chamber 5, with
And it is located at the spring 8 between spray-proof ball 6 and fixing jackscrew 7；
The diameter with diameter greater than seal 10 of spray-proof ball 6.
Preferably, annular seal space 2, connecting cavity 3, lubricating cavity 4 and blowout hookup chamber 5 are disposed as cylindrical cavity.Need
Bright, when using this packing box pressing cap, first pressure cap main body 1 is connected on packing box, then again by gland 9, spray-proof ball
6th, the assembly such as fixing jackscrew 7, spring 8 is consecutively connected in pressure cap main body 1.Specifically, lay down in the state of oil pumper stoppage in transit
Preload, polished rod eye, square clamp is separated oil-extractor polish-rod, twists off and prevent raising one's hat, packing box is penetrated from polished rod top, and fixing
It is connected on well head rubber gate, install the packing in packing box and Golan；Again by the pressure cap main body 1 of this packing box pressing cap from
Oil-extractor polish-rod top penetrates, and is connected with packing box, is closely connected with packing box by pressure cap main body 1, can compress Golan, and
Packing under compression Golan further, thus realize the sealing to oil-extractor polish-rod for the packing box；Then gland 9 is passed through seal
10 are fixed in annular seal space 2 from the loading of the top of oil-extractor polish-rod and by gland 9, close to carry out to oil-extractor polish-rod further
Envelope, then put into spray-proof ball 6, spring 8, fixing jackscrew 7 in blowout hookup chamber 5 successively, tighten fixing jackscrew 7, by spray-proof ball 6 He
Spring 8 is sealed in blowout hookup chamber 5, and spray-proof ball 6 is resisted against on oil-extractor polish-rod, and spring 8 is in compressive state, is then
Oil pumper can be started shipment.
The operation principle of a kind of jet proof type beam-pumping unit packing box pressing cap that this utility model embodiment provides is：In running
Oil-extractor polish-rod break suddenly de- and when in the pit shaft that drops, the lubricating cavity 4 in the pressure cap main body 1 of this packing box pressing cap is connected with outside
Lead to and make reduced pressure, spring 8 therefore quickly ejects spray-proof ball 6 to the low direction of pressure, makes spray-proof ball 6 quickly move to pressure cap
In the lubricating cavity 4 of main body 1, simultaneously because well head pressure declines rapidly, the liquid in liquid and gathering line in pit shaft also to
The seal 10 of the low packing box pressing cap of pressure sprays, thus promotes spray-proof ball 6 fast upward motion close to packing box pressing cap
Seal at 10, because spray-proof ball 6 is with diameter greater than the diameter of the seal 10 of gland 9, spray-proof ball 6 therefore pushes up and gone up packing box pressure
At the seal 10 of cap, efficiently avoid liquid and spray from shaft bottom, it is to avoid the problems such as oil loss and production scene are polluted.
This apparatus structure is simple, safe and reliable, stable operation, practical and be easy to manufacture, it is to avoid cause because of light rod-broken
The problems such as oil loss and environmental pollution, alleviate the labor intensity of employee, reduce production cost.
In above-mentioned jet proof type beam-pumping unit packing box pressing cap, the material of spray-proof ball 6 is not strict with, has good
High temperature resistant, mar proof can be it is preferable that spray-proof ball 6 can be made up of politef.
In above-mentioned jet proof type beam-pumping unit packing box pressing cap, spray-proof ball 6 is contacted with oil-extractor polish-rod, and in up-down stroke
During, phase mutual friction and make spray-proof ball 6 and oil-extractor polish-rod abrasion, in order to reduce this frictional dissipation and reduce friction and produce
Raw heat, is also provided with oil filler point 11, oil filler point 11 is connected with lubricating cavity 4, by from note on the side of pressure cap main body 1
Oilhole 11 injects butter and machine oil (butter and machine oil inject by a certain percentage) into lubricating cavity 4, then blocks oil filler point 11,
During oil-extractor polish-rod moves up and down, due to lubrication and the cooling effect of butter and machine oil, and its own temperature is made to reduce,
And reduce itself friction and spray-proof ball 6 between.
In above-mentioned jet proof type beam-pumping unit packing box pressing cap, in order to prevent oil-extractor polish-rod during up-down stroke
Take the butter in lubricating cavity 4 and machine oil out of, be further provided with O-ring 12 in annular seal space 2, O-ring 12 is located at gland 9
Lower section, and be fixedly connected in annular seal space 2 with gland 9, O-ring 12 is used for scraping the oil on oil-extractor polish-rod, makes oil stay profit
In sliding chamber 4.
In above-mentioned jet proof type beam-pumping unit packing box pressing cap, not tight to the connected mode between gland 9 and O-ring 12
Lattice require, and for the ease of dismounting, can connect gland 9 and O-ring 12 by fixing screws 13.Further, in order that connecting more
Fastening, can be respectively fixedly connected with gland 9 and O-ring 12 using four fixing screws 13 on symmetrical position.
In above-mentioned jet proof type beam-pumping unit packing box pressing cap, when spray-proof ball 6 springs in lubricating cavity 4, in order to prevent bullet
Spring 8 is fallen into sleeve pipe from lubricating cavity 4 and is resulted in blockage, and the one end that can arrange spring 8 is connected with fixing jackscrew 7, and spring 8 is another
End abuts spray-proof ball 6.
In above-mentioned jet proof type beam-pumping unit packing box pressing cap, not strict with the connected mode of fixing jackscrew 7 to spring 8
Limit, be capable of spring 8 and be fixedly connected with fixing jackscrew 7.Spring 8 can be welded on fixing jackscrew 7 it is also possible to lead to
Cross sheathed mode to be connected with fixing jackscrew 7.
Connected mode in above-mentioned jet proof type beam-pumping unit packing box pressing cap, to fixing jackscrew 7 and blowout hookup chamber 5
There is no considered critical, be capable of shirking of the two and be tightly connected, for example, fixing jackscrew 7 can be set there is external screw thread,
It is connected with the female thread in blowout hookup chamber 5.Further, fixing jackscrew 7 can be threaded into the length in blowout hookup chamber 5 by it
Spend and to adjust the compression degree of the spring 8 between fixing jackscrew 7 and spray-proof ball 6 it is preferable that making spring 8 promote the bullet of spray-proof ball 6
Power pressure to spray-proof ball 6 equal to the butter and machine oil in lubricating cavity 4, to keep spray-proof ball 6 position in lubricating cavity 4 stable,
Reduce the friction between oil-extractor polish-rod and spray-proof ball 6 simultaneously.
In above-mentioned jet proof type beam-pumping unit packing box pressing cap, not strict with the connected mode of packing box to connecting cavity 3
Limit, can connect for flange, threaded, in moving up and down in oil pumper, packing and interior packing have loosening, need
It being pressurizeed, therefore for convenience periodically pressure being applied to the Golan in packing box it is preferable that arranging pressure cap main body 1
Connecting cavity 3 be there is female thread for being connected with packing box, packing box pressing cap is screwed down by timing, and compresses packing.
In above-mentioned jet proof type beam-pumping unit packing box pressing cap, in order to realize that the Golan in packing box is extruded, can
The internal diameter of setting connecting cavity 3 is more than the internal diameter of lubricating cavity 4, and when this packing box pressing cap is connected with packing box, lubricating cavity 4 is less than even
The part connecing chamber 3 is pressed on the Golan in packing box, thus during this packing box pressing cap is threadeded with packing box,
Compress the packing under Golan by extruding Golan further.
The above is for only for ease of those skilled in the art and understands the technical solution of the utility model, not in order to
Limit this utility model.All of the present utility model spirit and principle within, any modification, equivalent substitution and improvement made etc.,
Should be included within protection domain of the present utility model.
Claims (10)
1. a kind of jet proof type beam-pumping unit packing box pressing cap is it is characterised in that this packing box pressing cap includes pressure cap main body (1), in institute
State and be provided with pressure cap main body (1)：
Annular seal space (2) positioned at the upper end of described pressure cap main body (1)；
Positioned at the lower end of described pressure cap main body (1) and for the connecting cavity (3) that connects with packing box；
Connect the lubricating cavity (4) of described annular seal space (2) and described connecting cavity (3)；And
The blowout hookup chamber (5) connecting positioned at the side of described pressure cap main body (1) and with described lubricating cavity (4)；
And, it is provided with gland (9) in described annular seal space (2), described gland (9) has the sealing for accommodating oil-extractor polish-rod
Mouth (10)；
It is provided with spray-proof ball (6) in described blowout hookup chamber (5), described spray-proof ball (6) is sealed in described blowout hookup chamber (5)
Interior fixing jackscrew (7) and be located at spring (8) between described spray-proof ball (6) and described fixing jackscrew (7)；
The diameter with diameter greater than described seal (10) of described spray-proof ball (6).
2. jet proof type beam-pumping unit packing box pressing cap according to claim 1 is it is characterised in that described spray-proof ball (6) is by gathering
Tetrafluoroethene is made.
3. jet proof type beam-pumping unit packing box pressing cap according to claim 1 is it is characterised in that in described pressure cap main body (1)
Side on be additionally provided with oil filler point (11), described oil filler point (11) is connected with described lubricating cavity (4).
4. jet proof type beam-pumping unit packing box pressing cap according to claim 3 is it is characterised in that in described annular seal space (2)
It is additionally provided with O-ring (12), described O-ring (12) is located at the lower section of described gland (9), and is fixedly connected with described gland (9)
In described annular seal space (2).
5. jet proof type beam-pumping unit packing box pressing cap according to claim 4 is it is characterised in that described gland (9) and described O
Pass through fixing screws (13) between type circle (12) to connect.
6. jet proof type beam-pumping unit packing box pressing cap according to claim 4 is it is characterised in that one end of described spring (8)
It is connected with described fixing jackscrew (7), the other end of described spring (8) abuts described spray-proof ball (6).
7. jet proof type beam-pumping unit packing box pressing cap according to claim 6 is it is characterised in that described spring (8) passes through set
If mode be connected with described fixing jackscrew (7).
8. jet proof type beam-pumping unit packing box pressing cap according to claim 7 it is characterised in that described fixing jackscrew (7) with
It is threaded between described blowout hookup chamber (5).
9. jet proof type beam-pumping unit packing box pressing cap according to claim 1 is it is characterised in that described connecting cavity (3) has
For the female thread connecting with packing box.
10. jet proof type beam-pumping unit packing box pressing cap according to claim 9 it is characterised in that described connecting cavity (3) interior
Footpath is more than the internal diameter of described lubricating cavity (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620839718.4U CN205936484U (en) | 2016-08-04 | 2016-08-04 | Anti-spraying type pumping unit packing box pressing cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620839718.4U CN205936484U (en) | 2016-08-04 | 2016-08-04 | Anti-spraying type pumping unit packing box pressing cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205936484U true CN205936484U (en) | 2017-02-08 |
Family
ID=57925540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620839718.4U Active CN205936484U (en) | 2016-08-04 | 2016-08-04 | Anti-spraying type pumping unit packing box pressing cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205936484U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915057A (en) * | 2019-04-16 | 2019-06-21 | 延长油田股份有限公司 | A kind of new oil formula polish rod lubricating device |
-
2016
- 2016-08-04 CN CN201620839718.4U patent/CN205936484U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915057A (en) * | 2019-04-16 | 2019-06-21 | 延长油田股份有限公司 | A kind of new oil formula polish rod lubricating device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |