CN203384374U - Mechanical rotary sealing device for vertical type screw pump pumping unit - Google Patents
Mechanical rotary sealing device for vertical type screw pump pumping unit Download PDFInfo
- Publication number
- CN203384374U CN203384374U CN201320502779.8U CN201320502779U CN203384374U CN 203384374 U CN203384374 U CN 203384374U CN 201320502779 U CN201320502779 U CN 201320502779U CN 203384374 U CN203384374 U CN 203384374U
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- CN
- China
- Prior art keywords
- gliding mass
- sleeve
- quiet
- stuffing box
- box gland
- 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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Abstract
The utility model relates to a sealing device, in particular to a mechanical rotary sealing device for a vertical type screw pump pumping unit. The problems that the mechanical rotary sealing device on an existing pumping unit is sealed in a filler mode or in a sealing ring mode or in a single mechanical mode, and the service life in all the modes is short are solved. The lower end of a sleeve barrel penetrates a main shaft on a motor and is connected with a blowout preventer, a locating bearing, a movable sliding body and a static sliding body are arranged between the sleeve barrel and the main shaft in sequence from bottom to top, a pumping rod sealing sleeve is arranged above the static sliding body, the lower end of the pumping rod sealing sleeve is in threaded connection with the sleeve barrel, an O-shaped sealing ring is arranged between the static sliding body and the sleeve barrel, a spring is arranged on the static sliding body and the pumping rod sealing sleeve in a sleeved mode, a transmission body is arranged on the static sliding body and the pumping rod sealing sleeve in a sleeved mode, the lower end of the transmission body is fixedly connected with the main shaft, packing and a transmission rod sealing sleeve are arranged in a transmission rod sealing groove from bottom to top, the transmission rod sealing sleeve is in threaded connection with the transmission body, and the upper end of the transmission body is sleeved with a clamp. The mechanical rotary sealing device is used for the vertical type screw pump pumping unit.
Description
Technical field
The utility model relates to a kind of seal arrangement, is specifically related to a kind of for the mechanical rotating sealing device on the vertical screw pump pumping unit.
Background technique
In the machinery of existing oil pumping in oil fields, a lot of rotation positions needs sealing.Existing seal form is divided into three kinds, and the first is to adopt the material filling type sealing, and the second is to adopt various sealing ring type sealings, and the third is to adopt single mechanical seal.These three kinds of sealing means when just installing or machine operation when steady sealing effect better.But in oil well pump work as while running into load variations, can make sucker rod produce shake, will cause the generation of sealing place oil impregnate or oil leakage phenomenon.Contain crude oil, natural gas, sand, water etc. in crude oil, seal arrangement working environment very severe, thus above three kinds of encapsulating method life-spans all shorter, and change Sealing and bother very much, some equipment also needs to employ the equipment such as crane when changing Sealing, returns factory and changes and maintenance.
The model utility content
The purpose of this utility model is that the mechanical rotating sealing device in order to solve on existing pumping unit adopts material filling type sealing, sealing ring type sealing or single mechanical seal, all there is short problem in working life, provide a kind of for the mechanical rotating sealing device on the vertical screw pump pumping unit.
The utility model comprises clamp, the drive link stuffing box gland, transmission body, the sucker rod stuffing box gland, packing, spring, quiet gliding mass, moving gliding mass, sleeve, positioning bearing, motor, blowout preventer and O RunddichtringO, the lower end of sleeve is passed the main shaft on motor and is connected with blowout preventer, positioning bearing, moving gliding mass and quiet gliding mass are arranged between sleeve and main shaft from the bottom to top successively, the sucker rod stuffing box gland is arranged on the top of quiet gliding mass, and the lower end of sucker rod stuffing box gland is connected with bush whorl, the O RunddichtringO is arranged between quiet gliding mass and sleeve, spring housing is contained on quiet gliding mass and sucker rod stuffing box gland, transmission body is sleeved on quiet gliding mass and sucker rod stuffing box gland, and the lower end of transmission body is fixedly connected with main shaft, the upper end of transmission body is provided with the drive link seal groove, packing and drive link stuffing box gland are arranged in the drive link seal groove from the bottom to top, and the drive link stuffing box gland is threaded with transmission body, clamp is sleeved on the upper end of transmission body.
The utlity model has following beneficial effect:
One, the utility model can form four road sealings, has effectively guaranteed the sealing of mechanical rotating sealing device, and crude oil oozes out also can not cause electrical fault, thereby has improved the working life of seal arrangement.
Two, the utility model is simple in structure, good sealing effect, long service life can be in 20 months without shutting down maintenance and changing easily damaged parts, while changing easily damaged parts without supplementary equipment as crane and automobile etc.
Three, the utility model replacing easily damaged parts is very convenient quick, shuts down and only needs get final product in 20-30 minute.
Four, seal arrangement can adapt to various media environments, can use with the various coordinative composition of equipments of sealing that need.
The accompanying drawing explanation
Fig. 1 is overall structure master's sectional view of the present utility model, and Fig. 2 is structure master's sectional view of gliding mass 8, and Fig. 3 is structure master's sectional view of quiet gliding mass 7.
Embodiment
Embodiment one: in conjunction with Fig. 1, present embodiment is described, present embodiment comprises clamp 1, drive link stuffing box gland 2, transmission body 3, sucker rod stuffing box gland 4, packing 5, spring 6, quiet gliding mass 7, moving gliding mass 8, sleeve 9, positioning bearing 10, motor 11, blowout preventer 12 and O RunddichtringO 13, the lower end of sleeve 9 is through the main shaft 11-1 on motor 11 and be connected positioning bearing 10 with blowout preventer 12, moving gliding mass 8 and quiet gliding mass 7 are arranged between sleeve 9 and main shaft 11-1 from the bottom to top successively, sucker rod stuffing box gland 4 is arranged on the top of quiet gliding mass 7, and the lower end of sucker rod stuffing box gland 4 is threaded with sleeve 9, O RunddichtringO 13 is arranged between quiet gliding mass 7 and sleeve 9, spring 6 is sleeved on quiet gliding mass 7 and sucker rod stuffing box gland 4, transmission body 3 is sleeved on quiet gliding mass 7 and sucker rod stuffing box gland 4, and the lower end of transmission body 3 is fixedly connected with main shaft 11-1, the upper end of transmission body 3 is provided with drive link seal groove 3-1, packing 5 and drive link stuffing box gland 2 are arranged in drive link seal groove 3-1 from the bottom to top, and drive link stuffing box gland 2 is threaded with transmission body 3, clamp 1 is sleeved on the upper end of transmission body 3.
Embodiment two: present embodiment is described in conjunction with Fig. 2, the moving gliding mass 8 of present embodiment comprises the second seal ring 8-2, the 3rd seal ring 8-3, lower seal pad 8-4, lower slip ring 8-5 and moving gliding mass cover 8-6, the lower end edge inwall of moving gliding mass cover 8-6 is provided with lower seal ring recess 8-7, the 3rd seal ring 8-3, the second seal ring 8-2 and the first seal ring 8-1 from top to bottom are arranged in lower seal ring recess 8-7 successively, the upper end edge inwall of moving gliding mass cover 8-6 is provided with seal groove 8-8, lower seal pad 8-4 is arranged in seal groove 8-8, the upper end edge inwall of lower seal pad 8-4 is provided with downslide annular groove 8-4-1, lower slip ring 8-5 is arranged in downslide annular groove 8-4-1.Other composition and annexation are identical with embodiment one.
Embodiment three: present embodiment is described in conjunction with Fig. 3, the quiet gliding mass 7 of present embodiment comprises quiet gliding mass cover 7-1, upper sealing gasket 7-2 and upper slip ring 7-3, the lower end edge inwall of gliding mass cover 8-1 is provided with lower seal ring recess 7-4, upper sealing gasket 7-2 is arranged in lower seal ring recess 7-4, the lower end edge inwall of upper sealing gasket 7-2 is provided with slip ring groove 7-2-1, and upper slip ring 7-3 is arranged in slip ring groove 7-2-1.Other composition and annexation are identical with embodiment two.
Working principle: between sleeve 9 and main shaft 11-1, be lower seal chamber M, moving gliding mass 8 provides the first sealing for lower seal chamber M; Under effect at spring 6 at spring force, make quiet gliding mass 7 and moving gliding mass 8 mutually be close to carry out slipper seal (be upper slip ring 7-3 mutually be close to and carry out slipper seal with the lower slip ring 8-5 on moving gliding mass 8) on quiet gliding mass 7, seal to form second; Sucker rod stuffing box gland 4 is three seals; The O RunddichtringO 13 of sucker rod stuffing box gland 4 lower ends be extruded distortion played the screw thread that both seals sucker rod stuffing box gland 4 must not oil impregnate, also having sealed sucker rod 14 must not leakage of oil, the 13 Wei tetra-roads sealings of O RunddichtringO.The vertical screw-pump oil extractor of positioning bearing 10, transmission body 3, packing 5 and sucker rod stuffing box gland 4 forms a complete Seal cage.
Claims (3)
1. one kind for the mechanical rotating sealing device on the vertical screw pump pumping unit, it is characterized in that: described device comprises clamp (1), drive link stuffing box gland (2), transmission body (3), sucker rod stuffing box gland (4), packing (5), spring (6), quiet gliding mass (7), moving gliding mass (8), sleeve (9), positioning bearing (10), motor (11), blowout preventer (12) and O RunddichtringO (13), the lower end of sleeve (9) is passed the main shaft (11-1) on motor (11) and is connected with blowout preventer (12), positioning bearing (10), moving gliding mass (8) and quiet gliding mass (7) are arranged between sleeve (9) and main shaft (11-1) from the bottom to top successively, sucker rod stuffing box gland (4) is arranged on the top of quiet gliding mass (7), and the lower end of sucker rod stuffing box gland (4) is threaded with sleeve (9), O RunddichtringO (13) is arranged between quiet gliding mass (7) and sleeve (9), spring (6) is sleeved on quiet gliding mass (7) and sucker rod stuffing box gland (4), transmission body (3) is sleeved on quiet gliding mass (7) and sucker rod stuffing box gland (4), and the lower end of transmission body (3) is fixedly connected with main shaft (11-1), the upper end of transmission body (3) is provided with drive link seal groove (3-1), packing (5) and drive link stuffing box gland (2) are arranged in drive link seal groove (3-1) from the bottom to top, and drive link stuffing box gland (2) is threaded with transmission body (3), clamp (1) is sleeved on the upper end of transmission body (3).
2. according to claim 1 for the mechanical rotating sealing device on the vertical screw pump pumping unit, it is characterized in that: described moving gliding mass (8) comprises the second seal ring (8-2), the 3rd seal ring (8-3), lower seal pad (8-4), lower slip ring (8-5) and moving gliding mass cover (8-6), the lower end edge inwall of moving gliding mass cover (8-6) is provided with lower seal ring recess (8-7), the 3rd seal ring (8-3), the second seal ring (8-2) and the first seal ring (8-1) from top to bottom are arranged in lower seal ring recess (8-7) successively, the upper end edge inwall of moving gliding mass cover (8-6) is provided with seal groove (8-8), lower seal pad (8-4) is arranged in seal groove (8-8), the upper end edge inwall of lower seal pad (8-4) is provided with downslide annular groove (8-4-1), lower slip ring (8-5) is arranged in downslide annular groove (8-4-1).
3. according to claim 2 for the mechanical rotating sealing device on the vertical screw pump pumping unit, it is characterized in that: described quiet gliding mass (7) comprises quiet gliding mass cover (7-1), upper sealing gasket (7-2) and upper slip ring (7-3), the lower end edge inwall of gliding mass cover (8-1) is provided with lower seal ring recess (7-4), upper sealing gasket (7-2) is arranged in lower seal ring recess (7-4), the lower end edge inwall of upper sealing gasket (7-2) is provided with slip ring groove (7-2-1), and upper slip ring (7-3) is arranged in slip ring groove (7-2-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320502779.8U CN203384374U (en) | 2013-08-16 | 2013-08-16 | Mechanical rotary sealing device for vertical type screw pump pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320502779.8U CN203384374U (en) | 2013-08-16 | 2013-08-16 | Mechanical rotary sealing device for vertical type screw pump pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203384374U true CN203384374U (en) | 2014-01-08 |
Family
ID=49872868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320502779.8U Expired - Fee Related CN203384374U (en) | 2013-08-16 | 2013-08-16 | Mechanical rotary sealing device for vertical type screw pump pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203384374U (en) |
-
2013
- 2013-08-16 CN CN201320502779.8U patent/CN203384374U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20140816 |
|
| EXPY | Termination of patent right or utility model |