CN208669254U - Self-sealing wellhead packing box with pressure - Google Patents
Self-sealing wellhead packing box with pressure Download PDFInfo
- Publication number
- CN208669254U CN208669254U CN201821231442.7U CN201821231442U CN208669254U CN 208669254 U CN208669254 U CN 208669254U CN 201821231442 U CN201821231442 U CN 201821231442U CN 208669254 U CN208669254 U CN 208669254U
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- Prior art keywords
- packing
- sucker rod
- outside
- nut
- globe joint
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- 238000012856 packing Methods 0.000 title claims abstract description 89
- 238000007789 sealing Methods 0.000 title claims abstract description 65
- 239000010779 crude oil Substances 0.000 claims abstract description 28
- 238000009434 installation Methods 0.000 claims description 32
- 238000005086 pumping Methods 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 5
- 238000003912 environmental pollution Methods 0.000 abstract description 4
- 230000004888 barrier function Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Details Of Valves (AREA)
Abstract
The utility model relates to polish rod sealing device technical fields, it is a kind of self-sealing wellhead packing box with pressure, it includes that packing assembly, packing top connection, crude oil spilling are shut off portion and packing lower contact, and packing assembly, packing top connection, crude oil spilling shut off portion and packing lower contact is sequentially fixedly mounted from top to bottom；Portion of shutting off is overflowed in packing top connection, crude oil and the inside of packing lower contact three forms interconnected sucker rod channel from top to bottom.The utility model reasonable and compact in structure, it is easy to use, it is after rod snap, sucker rod channel is passed through by transverse sealing device and to head into transverse sealing intracavitary, realize the packing in sucker rod channel at valve body, crude oil barrier is shut off below valve body, prevents crude oil from overflowing well head, environmental pollution and security risk caused by avoiding crude oil from overflowing；And by the way that eccentric adjustment section and tilt adjustments portion is arranged, keeps sucker rod placed in the middle in well, occur the phenomenon that bending and eccentric wear packing when preventing sucker rod from moving up and down.
Description
Technical field
The utility model relates to polish rod sealing device technical fields, are a kind of self-sealing wellhead packing boxes with pressure.
Background technique
After completing drilling well, crude oil production work can be carried out using pumping unit, and packing box is a kind of rod-pumped well
Mouth polish rod sealing device, in the work for playing the annular space between sealing oil pipe and sucker rod in oil well course of normal operation
With.In the sucker rod reciprocatory movement of pumping unit, packing box prevents oil, gas and water etc. outer for Seal Oil, gas and water etc.
It overflows.
Existing packing box when in use, has the following problems:
(1) since production wellhead is far from guard station on duty, operator on duty is different surely to be occurred in first time discovery sucker rod
Problem, after rod snap, when gap occurs in packing central hole, crude oil can overflow well head, cause environmental pollution and peace
Full hidden danger.
(2) sucker rod is connected to the lower section of beam hanger for pumping machine and illustrates to take out when beam hanger for pumping machine deviates well head center line
Beam hanger also offsets from well head center line, causes sucker rod not placed in the middle in well, due to not placed in the middle, the sucker rod up and down motion of sucker rod
When, the phenomenon that being easy to appear eccentric wear packing；Simultaneously as being also connected with other pumping tools below sucker rod, sucker rod is born
Certain gravity, in the case where sucker rod is not placed in the middle, long-time will appear buckling phenomenon after moving up and down.
(3) when inclination conditions occurs in pumpingh well, in order to guarantee that sucker rod is placed in the middle in well, the equipment for being mounted on the well head
Also inclination installation therewith, still, existing packing box can not remain that sucker rod is placed in the middle in well, and sucker rod is tilted in well head
Under operating condition, it is prone to bending and eccentric wear packing phenomenon.
Summary of the invention
The utility model provides a kind of self-sealing wellhead packing box with pressure, overcomes the defects of the prior art,
It can effectively solve the problem of rod snap causes crude oil to overflow.
The technical solution of the utility model is realized by following measures: a kind of self-sealing wellhead packing box with pressure,
Shut off portion and packing lower contact are overflowed including packing assembly, packing top connection, crude oil, packing assembly, packing top connection, crude oil overflow
Shut off portion out and packing lower contact is sequentially fixedly mounted from top to bottom；Packing top connection, crude oil overflow to be connect under shut off portion and packing
The inside of head three forms interconnected sucker rod channel from top to bottom；It includes valve body that crude oil, which overflows the portion of shutting off, and sucker rod is logical
Road longitudinally runs through valve body, and the transverse sealing chamber communicated with sucker rod channel is provided in the valve body of sucker rod channel left,
Be horizontally arranged in the valve body of sucker rod channel right and sucker rod channel communicate and with the radial corresponding transverse direction of transverse sealing chamber
Pressure-releasing chamber is provided with the transverse sealing device for heading into transverse sealing chamber packing sucker rod channel in lateral pressure-releasing chamber.
Here is the further optimization and/or improvements to above-mentioned utility model technical solution:
Above-mentioned transverse sealing device includes outer diameter and the matched rubber plug that shuts off of the intracavitary diameter of transverse sealing, the right part for the rubber plug that shuts off
Compressed spring in compressive state is installed between outside and the right end of lateral pressure-releasing chamber, is internally provided with left and right in the rubber plug that shuts off
The relief hole of perforation.
The left end of above-mentioned valve body is fixedly installed with left plug, the valve body between left plug right end and sucker rod channel left
It is interior from the right formation expansion chamber in a left side and transverse sealing chamber, the internal diameter of expansion chamber is greater than the internal diameter of transverse sealing chamber；Or/and in valve
The right end of body is fixedly installed with right plug, and lateral pressure release is formed in the valve body between right plug left end and sucker rod channel right
Chamber, the rubber plug that shuts off are mounted in the left part of lateral pressure-releasing chamber, the right end for the rubber plug that shuts off be fixed with outer diameter be less than shut off outside rubber plug
The addendum cone of diameter is provided with the pressure release uropore communicated with relief hole in addendum cone, pacifies in the valve body on the outside of addendum cone between right plug
Equipped with the compressed spring for being in compressive state.
Using eccentric adjustment section, eccentric adjustment section includes eccentric bushing, lower contact nut and lower contact for above-mentioned packing lower contact,
The inside of eccentric bushing, lower contact nut and lower contact three is interconnected；Eccentric bushing is in inverted T-shaped, and the axis in eccentric bushing is under
Eccentricity is equipped between axis in connector, eccentric bushing includes the narrow outer diameter section on top and the wide outer diameter section of lower part, narrow outer diameter section
Top and valve body lower end are fixedly mounted, and the lower inside and lower contact upper outside of lower contact nut are fixedly mounted, in lower contact
Internal diameter is provided on the inside of the upper end of nut to be less than wide outer diameter section outer diameter and be greater than the lower limit land of narrow outer diameter section outer diameter, lower limit
Land is sitting at the top of wide outer diameter section, and wide outer diameter section bottom end offsets with lower contact top.
Above-mentioned packing top connection uses tilt adjustments portion, and tilt adjustments portion includes connector cover for seat, globe joint and top connection
The inside of nut, connector cover for seat, globe joint and top connection nut three is interconnected, and is arranged in the lower outside of globe joint
Have in spherical spherical, plinth has put on spherical groove, and spherical is seated in spherical groove, the lower end of connector cover for seat and valve
The upper end of body is fixedly mounted, and inside and matched upper limit ring on the outside of spherical are provided on the inside of the upper end of top connection nut
Platform, upper limit land are sleeved on the outside of the spherical of plinth set top, outside the lower inside and connector cover for seat of top connection nut
Side is fixedly mounted.
Above-mentioned packing assembly includes clamping nut, and handle, clamp nut inside and ball are provided on the outside of clamping nut
It is fixedly mounted on the outside of shape connector, the lower end inside of globe joint is provided with installation land, the spherical shape more than installation land connects
Head inside forms installation groove, and the rectangular disk that can seal the annular space between sucker rod and globe joint is being equipped in installation groove
Root.
Above-mentioned packing assembly includes clamping nut and dribbling device, and handle is provided on the outside of clamping nut, and dribbling device is solid
Dingan County is fixedly mounted on the outside of globe joint on the inside of clamp nut, sets in the lower end inside of globe joint in clamping nut
It is equipped with installation land, forms installation groove on the inside of the globe joint more than installation land, being equipped in installation groove can lead to
The belt for being wrapped in and realizing the sealing of the annular space between sucker rod and globe joint on the outside of sucker rod is crossed, is arranged in the side of dribbling device
There is the open slot being connected to up and down, the upside of belt passes through open slot and stretches out outside clamping nut.
The utility model reasonable and compact in structure, it is easy to use, after rod snap, worn by transverse sealing device
It crosses sucker rod channel and heads into that transverse sealing is intracavitary, realize the packing in sucker rod channel at valve body, crude oil barrier is shut off in valve
Below body, prevent crude oil from overflowing well head, environmental pollution and security risk caused by avoiding crude oil from overflowing；And it is adjusted by the way that setting is eccentric
Whole and tilt adjustments portion keeps sucker rod placed in the middle in well, occurs bending and eccentric wear packing when preventing sucker rod from moving up and down
The phenomenon that.
Detailed description of the invention
Attached drawing 1 is schematic diagram of main cross-sectional structure of the best embodiment of the utility model.
Coding in attached drawing is respectively as follows: 1 for sucker rod channel, and 2 be valve body, and 3 be transverse sealing chamber, and 4 be lateral pressure-releasing chamber,
5 be sucker rod, and 6 be the rubber plug that shuts off, and 7 be compressed spring, and 8 be relief hole, and 9 be left plug, and 10 be expansion chamber, and 11 be right plug,
12 be addendum cone, and 13 be pressure release uropore, and 14 be lower contact nut, and 15 be lower contact, and 16 be narrow outer diameter section, and 17 be wide outer diameter section, 18
It is connector cover for seat for lower limit land, 19,20 be globe joint, and 21 be top connection nut, and 22 be spherical, and 23 be upper limit ring
Platform, 24 be handle, and 25 is install land, and 26 be dribbling device, and 27 be belt, and 28 be sealing ring, and 29 be clamping nut.
Specific embodiment
The utility model is not limited by following embodiments, can technical solution according to the present utility model and actual conditions
Determine specific embodiment.
In the present invention, for ease of description, the description of the relative positional relationship of each component is according to specification
The Butut mode of attached drawing 1 is described, such as: front, rear, top, and bottom, left and right positional relationship be according to Figure of description 1
Butut direction determine.
The utility model is further described below with reference to examples and drawings:
As shown in Fig. 1, which includes packing assembly, packing top connection, crude oil spilling section
Stream portion and packing lower contact, packing assembly, packing top connection, crude oil overflow portion of shutting off and packing lower contact sequentially to be consolidated from top to bottom
Dingan County's dress；The inside that shut off portion and packing lower contact three are overflowed in packing top connection, crude oil forms interconnected from top to bottom
Sucker rod channel 1；It includes valve body 2 that crude oil, which overflows the portion of shutting off, and sucker rod channel 1 is longitudinal to run through valve body 2, left in sucker rod channel 1
It is provided with the transverse sealing chamber 3 communicated with sucker rod channel 1 in the valve body 2 of side, it is horizontal in the valve body 2 of 1 right of sucker rod channel
To be provided with and sucker rod channel 1 communicate and with the radial corresponding lateral pressure-releasing chamber 4 of transverse sealing chamber 3, in lateral pressure-releasing chamber 4
It is provided with and heads into the transverse sealing device that transverse sealing chamber 3 insulates sucker rod channel 1.
When the utility model is used, the connection type according to conventional wellhead packing box is connect with other tools, sucker rod 5
Upper end is connect with beam hanger for pumping machine, and sucker rod 5 passes through the sucker rod channel 1 inside the utility model, transverse sealing device
Left end is held out against in 5 left-external side of sucker rod.
When sucker rod 5 fractures and sucker rod channel 1 between transverse sealing chamber 3 and lateral pressure-releasing chamber 4 is without sucker rod 5
When, transverse sealing device passes through sucker rod channel 1 and heads into transverse sealing chamber 3, realizes the envelope in sucker rod channel 1 at valve body 2
Every, crude oil barrier is shut off below valve body 2, prevents crude oil from overflowing well head, environmental pollution and peace caused by avoiding crude oil from overflowing
Full hidden danger.
Above-mentioned self-sealing wellhead packing box with pressure can be made further optimization and/or improvements according to actual needs:
As shown in Fig. 1, transverse sealing device includes outer diameter and the matched rubber plug 6 that shuts off of 3 internal diameter of transverse sealing chamber, is shut off
Compressed spring 7 in compressive state is installed between the right end of lateral pressure-releasing chamber 4, in the rubber plug 6 that shuts off on the outside of the right part of rubber plug 6
It is internally provided with the relief hole 8 of left and right perforation.
Under normal circumstances, the shut off left end of rubber plug 6 is held out against in the outside of sucker rod 5.When sucker rod 5 fractures and laterally close
When the sucker rod channel 1 sealed between chamber 3 and lateral 4 valve of pressure-releasing chamber does not have sucker rod 5, shut off rubber plug 6 compressed spring 7 elastic force
It under effect, across sucker rod channel 1 and heads into transverse sealing chamber 3, realizes the packing in sucker rod channel 1 at valve body 2.
Since the utility model uses under operating condition with pressure, when the rubber plug 6 that shuts off heads into transverse sealing chamber 3, laterally
Pressure in seal chamber 3 can import 2 right side of valve body by relief hole 8, and the rubber plug 6 that enables to shut off fully heads into transverse sealing chamber
3, it further increases crude oil and shuts off and insulate effect.
As shown in Fig. 1, it is fixedly installed with left plug 9 in the left end of valve body 2, in left 9 right end of plug and sucker rod channel 1
From the right formation expansion chamber 10 in a left side and transverse sealing chamber 3 in valve body 2 between left, the internal diameter of expansion chamber 10 is greater than transverse sealing
The internal diameter of chamber 3；Or/and it is fixedly installed with right plug 11 in the right end of valve body 2, it is right in right 11 left end of plug and sucker rod channel 1
Lateral pressure-releasing chamber 4 is formed in valve body 2 between side, the rubber plug 6 that shuts off is mounted in the left part of lateral pressure-releasing chamber 4, in the rubber plug 6 that shuts off
Right end be fixed with outer diameter and be less than the addendum cone 12 of 6 outer diameter of rubber plug of shutting off, be provided with the pressure release tail communicated with relief hole 8 in addendum cone 12
Hole 13 is equipped with the compressed spring 7 in compressive state in the valve body 2 between the outside of addendum cone 12 and right plug 11.
Since the rubber plug 6 that shuts off is rubber material, there is compressibility, therefore when the rubber plug 6 that shuts off is pushed into transverse sealing chamber 3
Afterwards, the shut off left end of rubber plug 6 is headed into expansion chamber 10, shut off rubber plug 6 of the left end for the rubber plug 6 that shuts off by compression-expansion, after expansion
Left end is squeezed into expansion chamber 10, and better seal transverse sealing chamber 3 further increases the packing effect for the rubber plug 6 that shuts off.
As shown in Fig. 1, using eccentric adjustment section, eccentric adjustment section includes eccentric bushing, lower contact nut for packing lower contact
14 and lower contact 15, the inside of 15 three of eccentric bushing, lower contact nut 14 and lower contact is interconnected；Eccentric bushing is in inverted T-shaped, partially
It is equipped with eccentricity between the axis in axis and lower contact 15 in heart set, eccentric bushing includes narrow outer diameter section 16 and the lower part on top
Wide outer diameter section 17, narrow 16 top of outer diameter section and 2 lower end of valve body be fixedly mounted, the lower inside and lower contact of lower contact nut 14
15 upper outsides are fixedly mounted, and internal diameter is provided on the inside of the upper end of lower contact nut 14 less than wide 17 outer diameter of outer diameter section and is greater than
The lower limit land 18 of narrow 16 outer diameter of outer diameter section, lower limit land 18 are sitting in 17 top of wide outer diameter section, wide 17 bottom end of outer diameter section with
15 top of lower contact offsets.
When beam hanger for pumping machine deviates well head center (center line), by adjusting eccentric adjustment section, make pumping unit
Polished rod eye is located on the center line of well head, also just makes sucker rod 5 placed in the middle in well, prevents sucker rod 5 from occurring when moving up and down curved
The phenomenon that bent and eccentric wear packing.
When beam hanger for pumping machine deviates well head center (center line), lower contact nut 14 is unclamped first, adjustment is simultaneously
Rotating eccentric sleeve is placed in the middle in well up to sucker rod 5, then tightens lower contact nut 14, prevents sucker rod 5 from when moving up and down
The phenomenon that now bending and eccentric wear packing.
As shown in Fig. 1, packing top connection uses tilt adjustments portion, and tilt adjustments portion includes that connector cover for seat 19, spherical shape connect
First 20 and top connection nut 21, the inside of 21 three of connector cover for seat 19, globe joint 20 and top connection nut is interconnected, in ball
The lower outside of shape connector 20 is provided in spherical spherical 22, has spherical groove in connector cover for seat 19, spherical 22 is seated at
In spherical groove, the lower end of connector cover for seat 19 and the upper end of valve body 2 are fixedly mounted, and are arranged on the inside of the upper end of top connection nut 21
There are inside and the 22 matched upper limit land 23 in outside of spherical, upper limit land 23 is sleeved on the spherical shape of 19 top of connector cover for seat
On the outside of body 22, it is fixedly mounted on the outside of the lower inside and connector cover for seat 19 of top connection nut 21.
When production wellhead inclination, by adjusting tilt adjustments portion, keeps sucker rod 5 placed in the middle in well, prevent sucker rod 5
Occurs the phenomenon that bending and eccentric wear packing when up and down motion.
When production wellhead inclination, top connection nut 21 is unclamped, then left and right or front and back adjustment globe joint 20 are until take out
Beam hanger 5 is placed in the middle in well.
As needed, packing assembly includes clamping nut 29, and the outside of clamping nut 29 is provided with handle 24, compresses spiral shell
Female inside be fixedly mounted on the outside of globe joint 20, be provided in the lower end inside of globe joint 20 and land 25 be installed, installed
Installation groove is formed on the inside of the globe joint 20 of 25 or more land, sucker rod 5 and spherical shape can be sealed by being equipped in installation groove
The rectangle packing of annular space between connector 20.
Rectangle packing is packing in existing well-known technique.
As shown in Fig. 1, packing assembly includes clamping nut 29 and dribbling device 26, is provided in the outside of clamping nut 29
Handle 24, dribbling device 26 are fixedly mounted in clamping nut 29, on the inside of clamp nut be fixedly mounted on the outside of globe joint 20,
The lower end inside of globe joint 20 is provided with installation land 25, and installation is formed on the inside of the globe joint 20 of 25 or more land of installation
Groove, can be by being wrapped in the ring realized between sucker rod 5 and globe joint 20 on the outside of sucker rod 5 being equipped in installation groove
The belt 27 of sky sealing, the open slot being connected to up and down is provided in the side of dribbling device 26, and the upside of belt 27 passes through open slot
It stretches out outside clamping nut 29.
By rotational handle 24, realize that 27 disk of belt is tight or operation of lightening restrictions on.
Belt 27 is the conventionally known belt packing in this field, and dribbling device 26 is the conventionally known belt pulley band in this field
Device.
According to actual needs, sealing ring 28 is provided between connector cover for seat 19 and globe joint 20.In eccentric bushing bottom end
Sealing ring 28 is provided between 15 top of lower contact.
The above technical characteristic constitutes the most preferred embodiment of the utility model, with stronger adaptability and best implementation
Effect can increase and decrease non-essential technical characteristic, according to actual needs to meet the needs of different situations.
Claims (10)
1. a kind of self-sealing wellhead packing box with pressure, it is characterised in that shut off including packing assembly, packing top connection, crude oil spilling
Portion and packing lower contact, packing assembly, packing top connection, crude oil overflows portion of shutting off and packing lower contact is sequentially fixed from top to bottom
Installation；Portion of shutting off is overflowed in packing top connection, crude oil and the inside of packing lower contact three forms interconnected pumping from top to bottom
Beam hanger channel；It includes valve body that crude oil, which overflows the portion of shutting off, and valve body is longitudinally run through in sucker rod channel, the valve body in sucker rod channel left
It is inside provided with the transverse sealing chamber communicated with sucker rod channel, is horizontally arranged with and pumps in the valve body of sucker rod channel right
Bar channel communicate and with the radial corresponding lateral pressure-releasing chamber of transverse sealing chamber, be provided in lateral pressure-releasing chamber and head into transverse direction
The transverse sealing device in seal chamber packing sucker rod channel.
2. self-sealing wellhead packing box with pressure according to claim 1, it is characterised in that transverse sealing device includes outer diameter
With the matched rubber plug that shuts off of the intracavitary diameter of transverse sealing, it is equipped between the right end of lateral pressure-releasing chamber on the outside of the right part for the rubber plug that shuts off
In the compressed spring of compressive state, the relief hole of left and right perforation is internally provided in the rubber plug that shuts off.
3. self-sealing wellhead packing box with pressure according to claim 2, it is characterised in that the left end of valve body is fixedly installed with
Left plug, from the right formation expansion chamber in a left side and transverse sealing in the valve body between left plug right end and sucker rod channel left
Chamber, the internal diameter of expansion chamber are greater than the internal diameter of transverse sealing chamber；Or/and it is fixedly installed with right plug in the right end of valve body, it is stifled on the right side
Lateral pressure-releasing chamber is formed in valve body between head left end and sucker rod channel right, the rubber plug that shuts off is mounted on a left side for lateral pressure-releasing chamber
In portion, it is fixed with the addendum cone that outer diameter is less than the rubber plug outer diameter that shuts off in the right end for the rubber plug that shuts off, is provided with and relief hole phase in addendum cone
Logical pressure release uropore is equipped with the compressed spring in compressive state in the valve body on the outside of addendum cone between right plug.
4. self-sealing wellhead packing box with pressure according to claim 1 or 2 or 3, it is characterised in that packing lower contact uses
Eccentric adjustment section, eccentric adjustment section include eccentric bushing, lower contact nut and lower contact, eccentric bushing, lower contact nut and lower contact
The inside of three is interconnected；Eccentric bushing is in inverted T-shaped, is equipped with bias between the axis in axis and lower contact in eccentric bushing
Away from, eccentric bushing includes the narrow outer diameter section on top and the wide outer diameter section of lower part, and narrow outer diameter section top and valve body lower end are fixedly mounted, under
The lower inside and lower contact upper outside of collar nut are fixedly mounted, and it is small to be provided with internal diameter on the inside of the upper end of lower contact nut
In wide outer diameter section outer diameter and greater than the lower limit land of narrow outer diameter section outer diameter, lower limit land is sitting at the top of wide outer diameter section, wide outer
Diameter section bottom end offsets with lower contact top.
5. self-sealing wellhead packing box with pressure according to claim 1 or 2 or 3, it is characterised in that packing top connection uses
Tilt adjustments portion, tilt adjustments portion include connector cover for seat, globe joint and top connection nut, connector cover for seat, globe joint and on
The inside of collar nut three is interconnected, and is provided in the lower outside of globe joint in spherical spherical, connector cover for seat
On have spherical groove, spherical is seated in spherical groove, and the upper end of the lower end of connector cover for seat and valve body is fixedly mounted, in top connection
Inside and matched upper limit land on the outside of spherical are provided on the inside of the upper end of nut, upper limit land is sleeved on connector cover for seat
On the outside of the spherical of top, it is fixedly mounted on the outside of the lower inside and connector cover for seat of top connection nut.
6. self-sealing wellhead packing box with pressure according to claim 4, it is characterised in that packing top connection is adjusted using inclination
Whole, tilt adjustments portion includes connector cover for seat, globe joint and top connection nut, connector cover for seat, globe joint and top connection spiral shell
The inside of female three is interconnected, and is provided in the lower outside of globe joint in spherical spherical, plinth has put on ball
Face groove, spherical are seated in spherical groove, and the lower end of connector cover for seat and the upper end of valve body are fixedly mounted, in top connection nut
Inside and matched upper limit land on the outside of spherical are provided on the inside of upper end, upper limit land is sleeved on plinth set top
On the outside of spherical, it is fixedly mounted on the outside of the lower inside and connector cover for seat of top connection nut.
7. self-sealing wellhead packing box with pressure according to claim 5, it is characterised in that packing assembly includes clamping nut,
It is provided with handle on the outside of clamping nut, is fixedly mounted on the inside of clamp nut on the outside of globe joint, under globe joint
End inside is provided with installation land, forms installation groove on the inside of the globe joint more than installation land, pacifies in installation groove
Rectangle packing equipped with the annular space that can be sealed between sucker rod and globe joint.
8. self-sealing wellhead packing box with pressure according to claim 6, it is characterised in that packing assembly includes clamping nut,
It is provided with handle on the outside of clamping nut, is fixedly mounted on the inside of clamp nut on the outside of globe joint, under globe joint
End inside is provided with installation land, forms installation groove on the inside of the globe joint more than installation land, pacifies in installation groove
Rectangle packing equipped with the annular space that can be sealed between sucker rod and globe joint.
9. self-sealing wellhead packing box with pressure according to claim 5, it is characterised in that packing assembly includes clamping nut
With dribbling device, handle is provided on the outside of clamping nut, dribbling device is fixedly mounted in clamping nut, on the inside of clamp nut with
It is fixedly mounted on the outside of globe joint, the lower end inside of globe joint is provided with installation land, the spherical shape more than installation land
Installation groove is formed on the inside of connector, sucker rod and spherical shape can be realized by being wrapped on the outside of sucker rod by being equipped in installation groove
The belt of annular space sealing between connector, the open slot being connected to up and down is provided in the side of dribbling device, the upside of belt passes through
Open slot stretches out outside clamping nut.
10. self-sealing wellhead packing box with pressure according to claim 6, it is characterised in that packing assembly includes clamping nut
With dribbling device, handle is provided on the outside of clamping nut, dribbling device is fixedly mounted in clamping nut, on the inside of clamp nut with
It is fixedly mounted on the outside of globe joint, the lower end inside of globe joint is provided with installation land, the spherical shape more than installation land
Installation groove is formed on the inside of connector, sucker rod and spherical shape can be realized by being wrapped on the outside of sucker rod by being equipped in installation groove
The belt of annular space sealing between connector, the open slot being connected to up and down is provided in the side of dribbling device, the upside of belt passes through
Open slot stretches out outside clamping nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821231442.7U CN208669254U (en) | 2018-08-01 | 2018-08-01 | Self-sealing wellhead packing box with pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821231442.7U CN208669254U (en) | 2018-08-01 | 2018-08-01 | Self-sealing wellhead packing box with pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208669254U true CN208669254U (en) | 2019-03-29 |
Family
ID=65833086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821231442.7U Expired - Fee Related CN208669254U (en) | 2018-08-01 | 2018-08-01 | Self-sealing wellhead packing box with pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208669254U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049748A (en) * | 2021-03-10 | 2021-06-29 | 深圳市行健自动化股份有限公司 | Cover plate of underwater electronic control module and use method |
-
2018
- 2018-08-01 CN CN201821231442.7U patent/CN208669254U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049748A (en) * | 2021-03-10 | 2021-06-29 | 深圳市行健自动化股份有限公司 | Cover plate of underwater electronic control module and use method |
| CN113049748B (en) * | 2021-03-10 | 2022-04-22 | 深圳市行健自动化股份有限公司 | Cover plate of underwater electronic control module and use method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190329 |