CN204113180U - Righting well testing mouth sealing device - Google Patents
Righting well testing mouth sealing device Download PDFInfo
- Publication number
- CN204113180U CN204113180U CN201420495990.6U CN201420495990U CN204113180U CN 204113180 U CN204113180 U CN 204113180U CN 201420495990 U CN201420495990 U CN 201420495990U CN 204113180 U CN204113180 U CN 204113180U
- Authority
- CN
- China
- Prior art keywords
- centering ring
- root
- righting
- sealing
- sealing device
- 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
Links
Abstract
A kind of righting well testing mouth sealing device.Mainly solve the problem of the sealing of existing well head upper sealing device and righting weak effect.It is characterized in that: sealing drum (1) is built-in with more than 2 columniform chassis root (4), chassis root (4) endoporus is conical, round taper hole be built-in with match conical take over a business root (5), chassis root (4) and take over a business root (5) sidewall on have spiral opening, uppermost take over a business root (5) be equipped with above the centering ring (6) of two halves circle, centering ring (6) and sealing drum (1) stationary fit, centering ring (6) thickness 15-35 millimeter, centering ring (6) hardness is lower than polished rod hardness, centering ring (6) is equipped with gland (2) above, above gland (2), sealing drum (1) is connected with packing pressure cap (3).This righting well testing mouth sealing device has sealing and the effective feature of righting.
Description
Technical field
The utility model relates to a kind of oil field shaft mouth sealing device, especially righting well testing mouth sealing device.
Background technology
In field of oil field oil extraction, in order to prevent well head and the leakage of oil of polished rod junction, need mounting sealing device on well head.And existing sealing device exists the problem of sealing and righting weak effect due to reasons in structure, affect oil recovery efficiency.
Summary of the invention
In order to solve the problem of the sealing of existing well head upper sealing device and righting weak effect.The utility model provides a kind of righting well testing mouth sealing device.This righting well testing mouth sealing device has sealing and the effective feature of righting.
The technical solution of the utility model is: this righting well testing mouth sealing device comprises sealing drum, gland and packing pressure cap.Sealing drum is built-in with more than 2 columniform chassis roots, chassis root endoporus is conical, round taper hole be built-in with match conical take over a business root, chassis root and take over a business root sidewall on have spiral opening, the uppermost centering ring taking over a business to be equipped with above root two halves circle, centering ring and sealing drum stationary fit, centering ring thickness 15-35 millimeter, centering ring hardness, lower than polished rod hardness, is equipped with gland above centering ring, above gland, sealing drum is connected with packing pressure cap.
The utility model has following beneficial effect: this righting well testing mouth sealing device is built-in with more than 2 columniform chassis roots owing to adopting sealing drum, chassis root endoporus is conical, round taper hole be built-in with match conical take over a business root, chassis root and take over a business root sidewall on have spiral opening, the uppermost centering ring taking over a business to be equipped with above root two halves circle, centering ring and sealing drum stationary fit, centering ring thickness 15-35 millimeter, centering ring hardness is lower than polished rod hardness, be equipped with gland above centering ring, above gland, sealing drum be connected with the structure of packing pressure cap.Utilize the centering ring composition arch brace polished rod of two halves circle, reduce the wearing and tearing to packing, thus improve sealing and righting effect.This righting well testing mouth sealing device has sealing and the effective feature of righting thus.
accompanying drawing illustrates:
Accompanying drawing 1 is the utility model structural representation;
Accompanying drawing 2 is centering ring schematic diagrames in Fig. 1.
1-sealing drum in figure, 2-gland, 3-packing pressure cap, 4-chassis root, 5-takes over a business root, 6-centering ring.
detailed description of the invention:
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, this righting well testing mouth sealing device comprises sealing drum 1, gland 2 and packing pressure cap 3.Sealing drum 1 is tubulose, sealing drum 1 is built-in with more than 2 columniform chassis roots 4, chassis root 4 endoporus is conical, round taper hole be built-in with match conical take over a business root 5, chassis root 4 and take over a business root 5 sidewall on have spiral opening, by chassis root 4 with take over a business root 5 and form complete packing, this packing is pressed tighter and tighter, thus improves sealing effectiveness.Uppermost take over a business root 6 be equipped with above the centering ring 6 of two halves circle, centering ring 6 and sealing drum (1) stationary fit, centering ring 6 thickness 15-35 millimeter, the too thick quickening of centering ring 6 thickness is to the wearing and tearing of polished rod, centering ring 6 thickness too thin reduction righting effect, best at 15-35 millimeter through experimental thickness.Centering ring 6 hardness is lower than polished rod hardness, and optimal selection is less than No. 45 carbon steel.The circular centering ring 6 of two halves forms complete circle, and because centering ring 6 hardness is lower than polished rod hardness, very little to polished rod wearing and tearing, self wearing and tearing is also slow, so with centering ring 6 righting polished rod, thus reduce the wearing and tearing to packing, finally improve sealing effectiveness.Centering ring 6 is equipped with gland 2 above, above gland 2, sealing drum 1 is connected with packing pressure cap 3, and compress gland 2 downwards by packing pressure cap 3, gland 2 compresses packing downwards.
This righting well testing mouth sealing device coordinates and the centering ring 6 of No. 45 carbon steels owing to adopting conical bottom packing 4 and taking over a business root 5, and then improves sealing and righting effect.
Claims (1)
1. a righting well testing mouth sealing device, comprise sealing drum (1), gland (2) and packing pressure cap (3), it is characterized in that: sealing drum (1) is built-in with more than 2 columniform chassis root (4), chassis root (4) endoporus is conical, round taper hole be built-in with match conical take over a business root (5), chassis root (4) and take over a business root (5) sidewall on have spiral opening, uppermost take over a business root (5) be equipped with above the centering ring (6) of two halves circle, centering ring (6) and sealing drum (1) stationary fit, centering ring (6) thickness 15-35 millimeter, centering ring (6) hardness is lower than polished rod hardness, centering ring (6) is equipped with gland (2) above, above gland (2), sealing drum (1) is connected with packing pressure cap (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420495990.6U CN204113180U (en) | 2014-08-29 | 2014-08-29 | Righting well testing mouth sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420495990.6U CN204113180U (en) | 2014-08-29 | 2014-08-29 | Righting well testing mouth sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204113180U true CN204113180U (en) | 2015-01-21 |
Family
ID=52330504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420495990.6U Expired - Fee Related CN204113180U (en) | 2014-08-29 | 2014-08-29 | Righting well testing mouth sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204113180U (en) |
-
2014
- 2014-08-29 CN CN201420495990.6U patent/CN204113180U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20160829 |