CN2814036Y - Sealing device capable of changing packing under pressed state - Google Patents
Sealing device capable of changing packing under pressed state Download PDFInfo
- Publication number
- CN2814036Y CN2814036Y CN 200520103388 CN200520103388U CN2814036Y CN 2814036 Y CN2814036 Y CN 2814036Y CN 200520103388 CN200520103388 CN 200520103388 CN 200520103388 U CN200520103388 U CN 200520103388U CN 2814036 Y CN2814036 Y CN 2814036Y
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- Prior art keywords
- stuffing box
- filler
- stuffing
- following
- outside
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- Expired - Fee Related
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Abstract
The utility model relates to a sealing device capable of changing stuffing under the pressed state, which comprises an upper stuffing box, a lower stuffing box, a positioning sleeve and a connecting sleeve which are in sequential coaxial thread connection in a vertical direction, wherein stuffing is arranged in the upper and the lower stuffing boxes both, and the outside of the lower part of the connecting sleeve and the inside of the lower part of the positioning sleeve in thread connection; the screwing direction of connecting threads between the upper part of the positioning sleeve and the lower end of the lower stuffing box is opposite to the screwing direction of connecting threads between the upper and the lower stuffing boxes. After the utility model adopts the technical measures, when stuffing needs to be added or replaced, the lower stuffing box is rotated firstly to enable the lower stuffing box to be moved downwards to compress lower stuffing, and the lower stuffing is used as a temporary sealing device; after the operation of adding or replacing the stuffing is completed, the lower stuffing box is rotated in a reverse direction to enable the lower stuffing box to move upwards, the stuffing is loosened, and the lower stuffing box can not be abraded any more; thus, the emptying of an oil well is not needed at the time of adding the stuffing, the loss of crude oil can be avoided, the workload is decreased and the production efficiency can be improved.
Description
Technical field
The utility model relates to a kind of seal arrangement, specifically be a kind of be the seal arrangement of replaceable filler at band under the pressure condition, be mainly used in the sealing of pumping well well head and other similar occasion that needs sealing in the petroleum production.
Background technique
The machine of using often relates to the seal arrangement between static casing and the working beam of motion (axle) in industrial production, for example: pumping well wellhead sealing device in the petroleum production.The main structure of this sealer is to fill stuffing box packing in Stuffing box, and filler is compressed, by filler with the axle between the tight purpose that reaches sealing that contacts.Through causing the filler wearing and tearing after working long hours, when filler may wear to a certain degree after, just need filled, at this moment have pressure to need emptying in the well after ability filled.So just lose the crude oil of emptying, prolonged and stop when filled to strengthen workload between well advances, influenced working efficiency.
Summary of the invention
It is the seal arrangement of replaceable filler at band under the pressure condition that the purpose of this utility model just provides a kind of, and emptying loss crude oil, workload are big when solving filled that prior art exists, and influences the problem of working efficiency.
The technical solution of the utility model is: comprise Stuffing box and filling last filler within it, also comprise Stuffing box, following filler, setting sleeve, connecting sleeve down, outside the inboard upper end with following Stuffing box, described lower end of going up Stuffing box by being threaded, top at following Stuffing box is provided with inward flange, the outside, following Stuffing box lower end is provided with outward flange, this outward flange is enclosed within the inward flange of setting sleeve upper end, and this outward flange outside is threaded with the setting sleeve upper inner; Connecting sleeve top is provided with thin neck and slides and insert in the lower end of described Stuffing box down, in the Stuffing box filler is housed down described, between the outside, the upper end of this connecting sleeve and following Stuffing box inboard, seal ring is being housed, outside the bottom of this connecting sleeve with described setting sleeve lower inside for being threaded and fastening mutually; The rotation direction of the connecting thread between the outward flange of described setting sleeve top and following Stuffing box lower end is opposite with the rotation direction of the connecting thread between last Stuffing box and the following Stuffing box.
In the upper end of described connecting sleeve and describedly be provided with packing ring between the filler down.
The described Stuffing box of going up is structure as a whole with following Stuffing box; Upper end at Stuffing box is provided with gland, and this gland is opposite with the connecting thread rotation direction between following Stuffing box and the setting sleeve with thread rotary orientation between the last Stuffing box.
Be connected with auxiliary circle in the described Stuffing box down outside.
Be provided with radially screw at described auxiliary circle, in this screw, screw in fastening screw trip bolt.
Described auxiliary circle is fixing with the outside welding of following Stuffing box.
After taking abovementioned technology, when needs interpolation or replacing filler, at first Stuffing box moves down it under the rotation, compresses down filler, and filler is as the temporary sealing device under utilizing.After finishing interpolation or changing the work of filler, will play Stuffing box it to be moved up again to opposite backward rotation, unclamp filler down, it is is no longer worn and torn, standby when interpolation next time or replacing filler.So just reach and need not oil well emptying when adding filler, avoided the crude oil loss, and reduce workload, improved manufacturing efficiency.
Description of drawings
Fig. 1 for the utility model with can adjust the bar of eccentric wear and embodiment's sectional structure schematic representation that shaft seal is used;
Fig. 2 is the sectional structure schematic representation that the utility model and conventional seals device are used.
Embodiment
Referring to Fig. 1, this embodiment's of the utility model structure comprises: go up filler 1, go up Stuffing box 2, Stuffing box 5, filler 9, packing ring 3, seal ring 10, auxiliary circle 11, fastening screw trip bolt 4, setting sleeve 6, connecting sleeve 7 down down.Described inboard, lower end of going up Stuffing box 2 is connected by screw thread 21 with the outside, upper end of following Stuffing box 5, upper end at following Stuffing box 5 is provided with inward flange, the outside, following Stuffing box 5 lower ends is provided with outward flange, this outward flange is enclosed within the inward flange of setting sleeve 6 upper ends, and this outward flange outside of following Stuffing box 5 is connected by screw thread 52 with setting sleeve 6 upper inner.Connecting sleeve 7 tops are provided with thin neck 71 and slide and insert in the lower end of described Stuffing box 5 down, be provided with packing ring 3 in the upper end of described connecting sleeve 7, filler 9 below the inward flange of described Stuffing box 5 upper ends down and under being equipped with between the packing ring 3, outside the upper end of this connecting sleeve 7 and between following Stuffing box 5 inboards seal ring 10 is being housed, the outside, bottom of this connecting sleeve 7 is connected by screw thread 62 with described setting sleeve 6 lower inside, and the employing welding is fixing or fastening screw trip bolt is fastening.The rotation direction of the connecting thread 52 between the outward flange of the top of described setting sleeve 6 inboards and following Stuffing box 5 lower ends is opposite with the rotation direction of connecting thread 21 between last Stuffing box 2 and the following Stuffing box 5.In the axle center hole of above-mentioned each parts, pass working shaft 8.
Be connected with auxiliary circle 11 and fastening screw trip bolt 4 in the outside, described down Stuffing box 5 middle parts, be provided with radially screw, in this screw, screw in fastening screw trip bolt 4 at described auxiliary circle 11.Auxiliary circle 11 also can adopt welding fixing with following Stuffing box 5 outsides.
Its working principle is: when adding filler 1, with the opposite spin of auxiliary circle 11 to tight last filler 1, auxiliary circle 11 drives down, and filler 5 rotates synchronously, following Stuffing box 5 is opposite with connecting thread 21 rotation directions of following Stuffing box 5 with setting sleeve 6 connecting threads, 52 rotation directions and last Stuffing box 2, so during to the opposite spin of tight filler 1, following Stuffing box 5 moves down, top, connecting sleeve 7 top packing ring 3 at auxiliary circle 11, packing ring 3 holds out against down filler 9, compresses sealing with working shaft 8.Just can add filler 1 this moment, add behind the filler 1 auxiliary circle 11 backward rotation, auxiliary circle 11 drives down, and Stuffing box 9 rotates, this moves on Stuffing box 5 at present, when on move on to down Stuffing box 5 outboard flanges when withstanding on location 6 cover inside upper part flanges, following Stuffing box 5 will be positioned to 51 places, and on tight during filler 1, following Stuffing box 5 and setting sleeve 6 can not rotate later on.Following filler 9 is in blow-by state (relaxed state), can not wear and tear.Because seal ring 10 is arranged, following Stuffing box 5 inboards are in sealing state so sealing substance can not leak with connecting sleeve 7 tops.As above operate when add filler 1 next time.Reach and need not emptying when adding filler 1 and avoided the crude oil loss, and reduce workload and improved manufacturing efficiency.
Referring to Fig. 2, this embodiment's a structure and a last embodiment have 2 differences: the one: go up Stuffing box and be structure as a whole with following Stuffing box 5, just play the upper end of Stuffing box 5 to extend upward a segment distance, last filler 1 and following filler 9 all are contained in down the upper and lower part of the inward flange of Stuffing box 5.Upper end at the Stuffing box 5 of this one is provided with gland 12, and this gland 12 is opposite with connecting thread 52 rotation directions between following Stuffing box and the setting sleeve with screw thread 21 rotation directions between the last Stuffing box 5.Compress filler 1 by gland 12.When tightly going up filler 1, following Stuffing box 5 will be located motionless with setting sleeve 6.This embodiment's working principle is identical with a last embodiment.In addition be not both the auxiliary circle 11 that can save among the embodiment.
Claims (6)
1. one kind is the seal arrangement of replaceable filler under the band pressure condition, comprise Stuffing box and filling last filler within it, it is characterized in that: also comprise Stuffing box, following filler, setting sleeve, connecting sleeve down, outside the inboard upper end with following Stuffing box, described lower end of going up Stuffing box by being threaded, top at following Stuffing box is provided with inward flange, the outside, following Stuffing box lower end is provided with outward flange, this outward flange is enclosed within the inward flange of setting sleeve upper end, and this outward flange outside is threaded with the setting sleeve upper inner; Connecting sleeve top is provided with thin neck and slides and insert in the lower end of described Stuffing box down, in the Stuffing box filler is housed down described, outside the upper end of this connecting sleeve and between the following Stuffing box inboard seal ring is being housed, the outside, the bottom of this connecting sleeve and described setting sleeve lower inside be for being threaded, and fastening mutually; The rotation direction of the connecting thread between the outward flange of described setting sleeve top and following Stuffing box lower end is opposite with the rotation direction of the connecting thread between last Stuffing box and the following Stuffing box.
2. according to claim 1 is the seal arrangement of replaceable filler at band under the pressure condition, it is characterized in that: be provided with packing ring between the upper end of described connecting sleeve and described time filler.
3. according to claim 1 is the seal arrangement of replaceable filler under the band pressure condition, it is characterized in that: the described Stuffing box of going up is structure as a whole with following Stuffing box; Be provided with gland in the hopper of this one upper end, this gland is opposite with the connecting thread rotation direction between following Stuffing box and the setting sleeve with thread rotary orientation between the last Stuffing box.
4. according to claim 1 is the seal arrangement of replaceable filler under the band pressure condition, it is characterized in that: be connected with auxiliary circle in the described Stuffing box outside down.
5. according to claim 4 is the seal arrangement of replaceable filler at band under the pressure condition, it is characterized in that: be provided with radially screw at described auxiliary circle, screw in fastening screw trip bolt in this screw.
6. according to claim 4 is the seal arrangement of replaceable filler under the band pressure condition, it is characterized in that: described auxiliary circle is fixing with the outside welding of following Stuffing box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520103388 CN2814036Y (en) | 2005-08-05 | 2005-08-05 | Sealing device capable of changing packing under pressed state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520103388 CN2814036Y (en) | 2005-08-05 | 2005-08-05 | Sealing device capable of changing packing under pressed state |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2814036Y true CN2814036Y (en) | 2006-09-06 |
Family
ID=36949124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520103388 Expired - Fee Related CN2814036Y (en) | 2005-08-05 | 2005-08-05 | Sealing device capable of changing packing under pressed state |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2814036Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828717A (en) * | 2011-09-30 | 2012-12-19 | 南通新诚电子有限公司 | Automatic deviation adjusting wellhead sealing device |
| CN103982691A (en) * | 2014-05-30 | 2014-08-13 | 济钢集团有限公司 | Method for preventing valve from leaking under pressure without stopping production |
-
2005
- 2005-08-05 CN CN 200520103388 patent/CN2814036Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828717A (en) * | 2011-09-30 | 2012-12-19 | 南通新诚电子有限公司 | Automatic deviation adjusting wellhead sealing device |
| CN103982691A (en) * | 2014-05-30 | 2014-08-13 | 济钢集团有限公司 | Method for preventing valve from leaking under pressure without stopping production |
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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: 20060906 Termination date: 20140805 |
|
| EXPY | Termination of patent right or utility model |