CN209040789U - A kind of coal bed gas well novel well head sealing device - Google Patents
A kind of coal bed gas well novel well head sealing device Download PDFInfo
- Publication number
- CN209040789U CN209040789U CN201821870139.1U CN201821870139U CN209040789U CN 209040789 U CN209040789 U CN 209040789U CN 201821870139 U CN201821870139 U CN 201821870139U CN 209040789 U CN209040789 U CN 209040789U
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- China
- Prior art keywords
- tuningout
- pedestal
- auxiliary
- deflection
- coal bed
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- 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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Abstract
The utility model provides a kind of coal bed gas well novel well head sealing device, mainly consists of three parts, including upper, middle and lower.The top is offset portion, comprising: gland, deflection-regulating centralizing device, tuningout nut, adjusting gasket, tuningout pedestal；The middle part is packing seal part, comprising: compresses Glan, is shorted；The lower part is auxiliary offset portion, comprising: auxiliary deflection-regulating centralizing device, righting adjusting nut, auxiliary tuningout pedestal, connection coupling.Described device uses twin-stage tuningout, and anti-bias effect is good, is shorted and increases packing cavity, improves sealing performance, and when tuningout and filler is simple to operate, improves production efficiency, and most of material of device is waste utilization, saves production cost.
Description
Technical field
The utility model relates to well head technical field, specially a kind of coal bed gas well novel well head sealing device.
Background technique
The gas well opening well and making production of coal bed gas company uses beam pumping unit mining substantially.Realize this production scheme
The device of sealing is adjustable offset blowout prevention box well head, realizes wellhead sealing using rubber, carries out tuningout well by two pairs of adjusting nuts
Mouthful, guarantee that polished rod is placed in the middle, achievees the purpose that eccentric abrasion prevention.But the Glan diameter of this sealing device is small, and filler installation caliber is small,
Slight eccentric wear wears blowout prevention box, and rubber is easy to wear, liquid measure great Yi leakage, after rubber abrasion polished rod eccentric wear wellhead blowout-preventing box and
Threeway causes polished rod eccentric wear to attenuate, and wellhead tee joint is worn out, wellhead blowout-preventing box overflow leakage, to cause maintenance workload and life
The increase for producing cost influences pumping unit and drives a well rate.
Utility model content
In order to solve deficiency in the prior art, the utility model provides a kind of coal bed gas well novel wellhead sealing dress
It sets.
The technical solution adopted in the utility model is as follows: a kind of coal bed gas well novel well head sealing device, mainly by three
It is grouped as, including upper, middle and lower.The top is offset portion, comprising: gland, deflection-regulating centralizing device, tuningout nut,
Adjusting gasket, tuningout pedestal；The middle part is packing seal part, comprising: compresses Glan, is shorted；The lower part is that auxiliary is adjusted
Inclined part, comprising: auxiliary deflection-regulating centralizing device, righting adjusting nut, auxiliary tuningout pedestal, connection coupling.Tuningout chassis interior is set
There is deflection-regulating centralizing device, wherein the tuningout pedestal is overlapped installation with the center line of the deflection-regulating centralizing device, in the tuningout pedestal
Adjusting gasket, the center line of the adjusting gasket and the deflection-regulating centralizing device are installed on the outside of inside, the deflection-regulating centralizing device
Center line is overlapped, and the gland connect by screw thread with the tuningout pedestal, set on the tuningout pedestal there are three positioned at tuningout
At centralizer half height and the threaded hole of radially uniform distribution is for installing the tuningout nut.It is described short circuit with it is described
Tuningout pedestal is connected through a screw thread, and is packing cavity inside the short circuit, filling sealed material in packing cavity, under the tuningout pedestal
There is a compression Glan in side, and auxiliary tuningout pedestal is equipped with below the short circuit, set on the auxiliary tuningout pedestal there are three be located at
At auxiliary deflection-regulating centralizing device half height and the threaded hole of radially uniform distribution is for installing the righting adjusting nut, institute
The upper end and the auxiliary tuningout pedestal for stating connection coupling are connected through a screw thread, and the lower end of the connection coupling and wellhead tee joint are logical
Cross threaded connection.
Compared with prior art, the utility model has the beneficial effects that
The utility model includes that offset portion and auxiliary offset portion carry out twin-stage tuningout, and anti-bias effect is good.Add short circuit
Filling space is big afterwards, and the sealing material that can be inserted greatly increases, and is compressed sealing material using Glan is compressed, and leakproofness mentions
It is high.Sealing material is that waste and old belt adds a small amount of rubber, is shorted two for both sides processing screw thread, three classes oil pipe, realizes waste utilization,
Reduce production cost.Deflection-regulating centralizing device and auxiliary deflection-regulating centralizing device are identical nylon centralising device, and the centralizer of the type uses
Service life is long.Well head centering can be adjusted in one monkey wrench, facilitates patrol personnel to adjust well head in time, improves efficiency.
Detailed description of the invention
Fig. 1 is a kind of coal bed gas well novel well head sealing device structural schematic diagram.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, right with reference to the accompanying drawings and embodiments
The present invention further explain in detail.It should be appreciated that specific embodiment described herein is only to explain the present invention, and do not have to
It is of the invention in limiting.
According to Fig. 1, a kind of coal bed gas well novel well head sealing device is mainly consisted of three parts, including top, middle part and
Lower part.The top is offset portion, comprising: gland 1, deflection-regulating centralizing device 3, tuningout nut 6, adjusting gasket 2, tuningout pedestal 4；
The middle part is packing seal part, comprising: compresses Glan 5, is shorted 7；The lower part is auxiliary offset portion, comprising: auxiliary
Deflection-regulating centralizing device 8, righting adjusting nut 9, auxiliary tuningout pedestal 10, connection coupling 11.Deflection-regulating centralizing is equipped with inside tuningout pedestal 4
Device 3, wherein tuningout pedestal 4 is overlapped installation with the center line of deflection-regulating centralizing device 3, outside 4 inside of tuningout pedestal, deflection-regulating centralizing device 3
Side is equipped with adjusting gasket 2, and the center line of adjusting gasket 2 is overlapped with the center line of deflection-regulating centralizing device 3, gland 1 by screw thread with
Tuningout pedestal 4 connects, and sets that there are three be located at 3 half height of deflection-regulating centralizing device and radially uniform distribution on tuningout pedestal 4
Threaded hole for installing tuningout nut 6.It is shorted 7 to be connected through a screw thread with tuningout pedestal 4, being shorted 7 inside is packing cavity, filler
Intracavitary filling sealed material has below tuningout pedestal 4 and compresses Glan 5, is shorted 7 lower sections and is equipped with auxiliary tuningout pedestal 10, auxiliary is adjusted
It is located at auxiliary 8 half height of deflection-regulating centralizing device there are three being set on inclined pedestal 10 and the threaded hole of radially uniform distribution is used for
The righting adjusting nut 9 is installed, upper end and the auxiliary tuningout pedestal 10 of connection coupling 11 are connected through a screw thread, connection coupling 11
Lower end be connected through a screw thread with wellhead tee joint 12.
Deflection-regulating centralizing device 3 and three tuningout nuts 6 remain polished rod 13 between two parties, realize not eccentric wear well head
Purpose, while the outside of deflection-regulating centralizing device 3 be equipped with adjusting gasket 2, its surface stress face is made when adjusting deflection-regulating centralizing device 3
Contact can extend the service life of deflection-regulating centralizing device 3, and gland 1 is connect by screw thread with tuningout pedestal 4, compress tuningout
Centralizer 3 and adjusting gasket 2 prevent its upper and lower play, while can lubricate from 3 interstitial hole edge slot filling engine oil of gland, subtract
Small friction.It is shorted 7 to be connected through a screw thread with tuningout pedestal 4, longer due to being shorted 7, the internal packing cavity formed is larger, passes through
It loads a large amount of waste and old belts by machine oil immersion and a small amount of rubber realizes sealing, since packing cavity is big, amount can be filled greatly, it can
Realize more preferable, more longlasting sealing, its toughness of waste and old belt and wearability impregnated through machine oil all increase.Compress Glan 5
It is processed as one with tuningout pedestal 4, wherein compressing Glan 5 can realize the belt and rubber compression inside packing cavity more preferable
Sealing sealed when belt and rubber are by certain abrasion by screwing to be shorted 7 and compresses realization again with tuningout pedestal 4,
The number of replacement belt and rubber can be reduced.Auxiliary tuningout pedestal 10 is used to support auxiliary deflection-regulating centralizing device 8, wherein auxiliary is adjusted
Inclined pedestal 10 is processed as one with being shorted 7, and auxiliary deflection-regulating centralizing device 8 is used cooperatively auxiliary to polished rod with three righting adjusting nuts 9
Tuningout is helped, anti-bias effect is reinforced, while being conducive to install belt and rubber additional.11 upper end of connection coupling and auxiliary tuningout pedestal 10 are logical
Threaded connection is crossed, 11 lower end of connection coupling is connected through a screw thread with wellhead tee joint 12, realizes normal mining work.It is above-mentioned all
Threaded connection place has raw material band to wind to enhance the leakproofness of junction.Deflection-regulating centralizing device 3 and auxiliary deflection-regulating centralizing device 8 are phase
Same nylon centralising device.Normal well head eccentric wear replaces deflection-regulating centralizing device 3, and well head screws short circuit 7 and tuningout first when leaking
Connection between pedestal 4, if replacing packing cavity inner belt and rubber there are also leaking after screwing.
Compared with prior art, the utility model has the beneficial effects that
The utility model includes that offset portion and auxiliary offset portion carry out twin-stage tuningout, and anti-bias effect is good.Add short circuit
Filling space is big afterwards, and the sealing material that can be inserted greatly increases, and is compressed sealing material using Glan is compressed, and leakproofness mentions
It is high.Sealing material is that waste and old belt adds a small amount of rubber, is shorted two for both sides processing screw thread, three classes oil pipe, realizes waste utilization,
Reduce production cost.Deflection-regulating centralizing device and auxiliary deflection-regulating centralizing device are identical nylon centralising device, and the centralizer of the type uses
Service life is long.Well head centering can be adjusted in one monkey wrench, facilitates patrol personnel to adjust well head in time, improves efficiency.
Claims (8)
1. a kind of coal bed gas well novel well head sealing device, it is characterised in that mainly consist of three parts, including top, middle part and
Lower part, the top are offset portions, comprising: gland, deflection-regulating centralizing device, tuningout nut, adjusting gasket, tuningout pedestal；It is described
Middle part is packing seal part, comprising: compresses Glan, is shorted；The lower part is auxiliary offset portion, comprising: auxiliary tuningout is helped
Positive device, righting adjusting nut, auxiliary tuningout pedestal, connection coupling；Tuningout chassis interior is equipped with deflection-regulating centralizing device, wherein the tune
Inclined pedestal is overlapped installation with the center line of the deflection-regulating centralizing device, on the inside of the tuningout pedestal, on the outside of the deflection-regulating centralizing device
Adjusting gasket is installed, the center line of the adjusting gasket is overlapped with the center line of the deflection-regulating centralizing device, and the gland passes through
Screw thread is connect with the tuningout pedestal, set on the tuningout pedestal there are three be located at deflection-regulating centralizing device half height at and diameter
To equally distributed threaded hole for installing the tuningout nut, the short circuit is connected through a screw thread with the tuningout pedestal, institute
It is packing cavity that it is internal, which to state short circuit, and filling sealed material in packing cavity, there is the compression Glan in the tuningout pedestal lower section, described short
It connects lower section and is equipped with auxiliary tuningout pedestal, set on the auxiliary tuningout pedestal high there are three auxiliary deflection-regulating centralizing device half is located at
At degree and the threaded hole of radially uniform distribution is for installing the righting adjusting nut, the upper end of the connection coupling with it is described auxiliary
Tuningout pedestal is helped to be connected through a screw thread, lower end and the wellhead tee joint of the connection coupling are connected through a screw thread.
2. a kind of coal bed gas well novel well head sealing device according to claim 1, it is characterised in that: the deflection-regulating centralizing
Device and the auxiliary deflection-regulating centralizing device are identical nylon centralising device.
3. a kind of coal bed gas well novel well head sealing device according to claim 1, it is characterised in that: described be shorted is two
Side processes the two of screw thread, three classes oil pipe.
4. a kind of coal bed gas well novel well head sealing device according to claim 1, it is characterised in that: all threaded connections
Place has raw material band to wind to enhance the leakproofness of junction.
5. a kind of coal bed gas well novel well head sealing device according to claim 1, it is characterised in that: the tuningout pedestal
It is processed as one with the compression Glan.
6. a kind of coal bed gas well novel well head sealing device according to claim 1, it is characterised in that: the short circuit with
What the auxiliary tuningout pedestal was processed as one.
7. a kind of coal bed gas well novel well head sealing device according to claim 1, it is characterised in that: airtight and watertight padding is useless
Old belt adds a small amount of rubber.
8. a kind of coal bed gas well novel well head sealing device according to claim 5, it is characterised in that: waste and old belt needs
It is impregnated with machine oil, improves its toughness and wearability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821870139.1U CN209040789U (en) | 2018-11-14 | 2018-11-14 | A kind of coal bed gas well novel well head sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821870139.1U CN209040789U (en) | 2018-11-14 | 2018-11-14 | A kind of coal bed gas well novel well head sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209040789U true CN209040789U (en) | 2019-06-28 |
Family
ID=67042394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821870139.1U Expired - Fee Related CN209040789U (en) | 2018-11-14 | 2018-11-14 | A kind of coal bed gas well novel well head sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209040789U (en) |
-
2018
- 2018-11-14 CN CN201821870139.1U patent/CN209040789U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190628 Termination date: 20191114 |