CN206874246U - A kind of producing well sealing device - Google Patents
A kind of producing well sealing device Download PDFInfo
- Publication number
- CN206874246U CN206874246U CN201720447693.8U CN201720447693U CN206874246U CN 206874246 U CN206874246 U CN 206874246U CN 201720447693 U CN201720447693 U CN 201720447693U CN 206874246 U CN206874246 U CN 206874246U
- Authority
- CN
- China
- Prior art keywords
- seal
- packing
- piston
- polished rod
- short section
- 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
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- Sealing Devices (AREA)
Abstract
A kind of water-tight equipment is the utility model is related to, more particularly to a kind of producing well sealing device, its technical scheme is：Including polished rod, connecting short section, packer, sealing flange, seal sleeve, piston bush, piston, packing lifts pallet, sealed packing, packing gland, pre-pressing spring, seal, polished rod is located inside connecting short section and seal sleeve, the bottom of polished rod is fixed by packer and connecting short section, the top of connecting short section connects through sealing flange connection seal sleeve, the bottom of described seal sleeve is provided with piston bush, fixed piston on piston bush, the bottom of piston and polished rod is provided with packing lifting pallet, on described packing lifting pallet fixing seal disk with, pre-pressing spring is provided between piston and piston bush, the top of sealed packing is sealed by packing gland and fixed, seal is provided between described sealed packing and packing gland, the beneficial effects of the utility model are：The problem of changing existing hermetic oil seal sealing effectiveness difference, simple in construction, service life length, maintenance letter is answered, conveniently.
Description
Technical field
A kind of water-tight equipment is the utility model is related to, more particularly to a kind of producing well sealing device.
Background technology
In the high pressure packing_seal oil well production that petroleum industry uses, due to reasons such as pressure height, agings, easily cause oil
Envelope thorn leakage, causes lubricating oil to miss, not only influences production, increase maintenance cost, but also pollute environment.Existing hermetic oil seal is
Quality of rubber materials, simple in construction, service life is short, is unsuitable for using, it is necessary to close to high pressure-conducting disk root in current produce reality situation
The structure and material of envelope are further to be improved, to adapt to the existing equipment situation of oil well production.
The content of the invention
The purpose of this utility model is aiming at drawbacks described above existing for prior art, there is provided a kind of producing well is filled with sealing
Put.
Its technical scheme is：Including polished rod, connecting short section, packer, sealing flange, seal sleeve, piston bush, piston,
Packing lifting pallet, sealed packing, packing gland, pre-pressing spring, seal, polished rod are located in connecting short section and seal sleeve
Portion, the bottom of polished rod are fixed by packer and connecting short section, and the top of connecting short section connects through sealing flange connection sealing
Sleeve, the bottom of described seal sleeve are provided with piston bush, fixed piston on piston bush, and the bottom of piston and polished rod is provided with packing
Pallet is lifted, fixing seal disk is with being provided with pre-pressing spring, sealing on described packing lifting pallet between piston and piston bush
The top of packing is sealed by packing gland and fixed, and seal is provided between described sealed packing and packing gland.
Described seal is split-type circular ring structure, including the first seal and the second seal, the first seal and
Second seal is semicircular structure, and the outer wall of the first described seal and the second seal is provided with groove, the first seal
Mutually fasten with the second seal, fixed in the exterior groove of the first seal and the second seal by spring clamp ring.
The both ends of first seal are bevel angle, and the both ends of the second seal are the neck to be cooperated with bevel angle.
The beneficial effects of the utility model are：The problem of changing existing hermetic oil seal sealing effectiveness difference, it is simple in construction, make
Grown with the cycle, maintenance letter answer, conveniently, suitable for being used in current produce reality situation, the seal that piston upper shed is provided with and
One pre-compressed spring, seal are split-type circular ring structure, and seal 12 is in the presence of spring clamp ring 12.4, seal pair
The slight skimming wear of piston is compensated, and pre-compressed spring is provided on the seal acted in relatively low or no pressure, ensured
The minimum squeezing action power of polished rod is sealed, as hydraulic coupling of the effect of increasing of well head pressure on piston increases, is then acted on
Squeezing action power on seal also increases, and ensure that the optimal seal of polished rod.
Brief description of the drawings
Accompanying drawing 1 is structural representation of the present utility model；
Accompanying drawing 2 is the structural representation of seal；
Accompanying drawing 3 is the side view of seal；
In upper figure：Polished rod 1, connecting short section 2, packer 3, sealing flange 4, seal sleeve 5, piston bush 6, piston 7, packing
Lift pallet 8, sealed packing 9, packing gland 10, pre-pressing spring 11, seal 12；First seal 12.1, second seals
Body 12.2, groove 12.3, spring clamp ring 12.4.
Embodiment
With reference to accompanying drawing 1-3, the utility model will be further described：
The utility model includes polished rod 1, connecting short section 2, packer 3, sealing flange 4, seal sleeve 5, piston bush 6, work
Plug 7, packing lifting pallet 8, sealed packing 9, packing gland 10, pre-pressing spring 11, seal 12, polished rod 1 are short positioned at connecting
Inside section 2 and seal sleeve 5, the bottom of polished rod 1 is fixed by packer 3 and connecting short section 2, the top connection of connecting short section 2
Seal sleeve 5 is connected by sealing flange 4, the bottom of described seal sleeve 5 is provided with piston bush 6, fixed piston on piston bush 6
7, the bottom of piston 7 and polished rod 1 is provided with packing lifting pallet 8, and fixing seal disk is with 9 on described packing lifting pallet 8, piston
Pre-pressing spring 11 is provided between piston bush 6, the top of sealed packing 9 is sealed by packing gland 10 to be fixed, and described is close
Seal 12 is provided between closing disk root 9 and packing gland 10.
Described seal 12 is split-type circular ring structure, including the first seal 12.1 and the second seal 12.2,
One seal 12.1 and the second seal 12.2 are semicircular structure, described the first seal 12.1 and the second seal 12.2
Outer wall be provided with groove 12.3, the first seal 12.1 and the second seal 12.2 mutually fasten, the first seal 12.1 and
Fixed in the exterior groove of two seals 12.2 by spring clamp ring 12.4.
The both ends of first seal 12.1 are bevel angle, and the both ends of the second seal 12.2 are to be cooperated with bevel angle
Neck.
Operation principle：
Polished rod is moved up and down in the course of work, and piston lower portion is fixed by piston bush 6, the seal that piston upper shed is provided with
12 and a pre-compressed spring, seal 12 be split-type circular ring structure, seal 12 is close in the presence of spring clamp ring 12.4
Envelope body 12 compensates to the slight skimming wear of piston, and pre-compressed spring provides the seal acted in relatively low or no pressure
Minimum squeezing action power that is upper, ensureing sealing polished rod, as hydraulic coupling of the effect of increasing of well head pressure on piston increases, then
The squeezing action power acted on seal also increases, and ensure that the optimal seal of polished rod.
Finally it should be noted that：Preferred embodiment of the present utility model is the foregoing is only, is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it can still modify to the technical scheme described in foregoing embodiments, or to which part technical characteristic
Carry out equivalent substitution.All any modification, equivalent substitution and improvements within the spirit and principles of the utility model, made etc.,
It should be included within the scope of protection of the utility model.
Claims (3)
1. a kind of producing well sealing device, it is characterized in that：Including polished rod, connecting short section, packer, sealing flange, sealing shroud
Cylinder, piston bush, piston, packing lifting pallet, sealed packing, packing gland, pre-pressing spring, seal, polished rod is positioned at connection
Inside pipe nipple and seal sleeve, the bottom of polished rod is fixed by packer and connecting short section, and the top of connecting short section connects through
Sealing flange connects seal sleeve, and the bottom of described seal sleeve is provided with piston bush, fixed piston, piston and light on piston bush
The bottom of bar is provided with packing lifting pallet, and fixing seal disk between piston and piston bush with setting on described packing lifting pallet
There is pre-pressing spring, the top of sealed packing is sealed by packing gland to be fixed, between described sealed packing and packing gland
Provided with seal.
2. a kind of producing well sealing device according to claim 1, it is characterized in that：Described seal is justified for split-type
Ring structure, including the first seal and the second seal, the first seal and the second seal are semicircular structure, described
The outer wall of one seal and the second seal is provided with groove, and the first seal and the second seal mutually fasten, the first seal
Fixed with the exterior groove of the second seal by spring clamp ring.
3. a kind of producing well sealing device according to claim 2, it is characterized in that：The both ends of first seal are taper
Angle, the both ends of the second seal are the neck to be cooperated with bevel angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720447693.8U CN206874246U (en) | 2017-04-26 | 2017-04-26 | A kind of producing well sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720447693.8U CN206874246U (en) | 2017-04-26 | 2017-04-26 | A kind of producing well sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206874246U true CN206874246U (en) | 2018-01-12 |
Family
ID=61344411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720447693.8U Expired - Fee Related CN206874246U (en) | 2017-04-26 | 2017-04-26 | A kind of producing well sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206874246U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111305786A (en) * | 2020-04-17 | 2020-06-19 | 濮阳市大通机泵有限公司 | Automatic tight packing polished rod sealer |
| CN112855064A (en) * | 2021-02-19 | 2021-05-28 | 大庆市天德忠石油科技有限公司 | High-strength compression type packer rubber barrel structure |
-
2017
- 2017-04-26 CN CN201720447693.8U patent/CN206874246U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111305786A (en) * | 2020-04-17 | 2020-06-19 | 濮阳市大通机泵有限公司 | Automatic tight packing polished rod sealer |
| CN112855064A (en) * | 2021-02-19 | 2021-05-28 | 大庆市天德忠石油科技有限公司 | High-strength compression type packer rubber barrel structure |
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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: 20180112 Termination date: 20180426 |