CN2222265Y - High-pressure rotation dynamic seal device - Google Patents
High-pressure rotation dynamic seal device Download PDFInfo
- Publication number
- CN2222265Y CN2222265Y CN 95213047 CN95213047U CN2222265Y CN 2222265 Y CN2222265 Y CN 2222265Y CN 95213047 CN95213047 CN 95213047 CN 95213047 U CN95213047 U CN 95213047U CN 2222265 Y CN2222265 Y CN 2222265Y
- Authority
- CN
- China
- Prior art keywords
- sealing
- tightly connected
- packing ring
- hand member
- fixed
- 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 discloses a high-pressure rotary movable sealing device. The utility model is characterized in that a movable sealing ring is sheathed on a shaft of a sealing box, a moveless sealing ring which is connected with the movable sealing ring is fixed to a sealing connection body, and an equalizing valve is also arranged on the connection body; a sealing unit is formed by the four parts, namely the movable sealing ring, the moveless sealing ring, the sealing box and the equalizing valve, and a plurality of sealing units are connected in series to jointly bear high pressure water which flows from a water uptake opening; two angular contact ball bearings are arranged on the left side of the shaft of the sealing box in series, and axial force is effectively born by the two angular contact ball bearings. The utility model has the advantages of simple structure, good sealing effect and long service life and solves the problem of the seal of high pressure inflowing water.
Description
The utility model relates to a kind of high-pressure rotary dynamic seal apparatus, is used for oil field pressurized water injection system.
For improving the oil output of oil field individual well, oil reservoir is carried out the water filling pressurization, in the initial stage and the mid-term of exploitation, the pressure of water filling is below 16MPa, to the exploitation later stage hydraulic pressure increase to more than the 20MPa by 16, because increasing of pressure, solve high pressure sealing problem and axial force problem with regard to needs, the domestic Sealing factory that is engaged in professional production once manufactured experimently the mechanical seal that 15MPa is born in requirement, find in the use that leakage rate is big and the life-span is also very short, and the oil field is open work in the open air, and the water that leaks out in the winter time build-ups ice and can't carry out work.
The purpose of this utility model is for a kind of sealing unit of being made up of rotary packing ring, stationary seal ring, pressure equalizing valve and the body that is tightly connected that overcomes that above-mentioned deficiency designs and with the be together in series high-pressure rotary dynamic seal apparatus of all being pressed by pressure equalizing valve between water pressure, each unit of coming of common bearing pump water sucking mouth 16MPa of a plurality of sealing units, has alleviated its leakage rate greatly and has improved life-span of sealing.
The utility model content, suit rotary packing ring on the sealed case axle of high-pressure rotary dynamic seal apparatus, the stationary seal ring that joins with rotary packing ring is fixed on the body that is tightly connected, the sealing connecting body is provided with pressure equalizing valve, above-mentioned rotary packing ring, stationary seal ring, be tightly connected body and pressure equalizing valve formation sealing unit, a plurality of sealing units are together in series; Two are tightly connected is connected and fixed by screw between body, be tightly connected body and the stationary seal ring of left end are separately fixed on the end cap of left end, the right-hand member of the body that is tightly connected of right-hand member is connected on the sealed support through screw, between sealed support and final stage rotary packing ring, be provided with the steel backing composite sliding bearing between sealing termination and final stage rotary packing ring, sealed support is provided with supporting positive cover with the small end outside of sealing termination, the sealing termination is fixed with the right-hand member that has the seal case of pump water sucking mouth, and the right-hand member of seal case left end and end cap and bearing housing is fixed together; Be provided with rolling bearing at bearing housing and sealed case between centers, the two ends of bearing housing are provided with sealing.
Bearing housing and sealed case between centers are installed two angular contact ball bearings.
The utility model advantage can be born the sealing unit of 5MPa and is together in series owing to be provided with five in the sealed case, bears the water pressure of coming of 16MPa jointly, leaks less than 5ml/h, and turn(a)round solved 16MPa high pressure lower seal problem greater than 8000 hours; Leakage rate is little, and height was together in series with two angular contact ball bearings at the left end of sealed case and can bears axial force effectively sealing life.
Description of drawings:
Fig. 1 is the utility model sectional view
Fig. 2 is that the utility model is installed and connection diagram in pressurized water injection
Below in conjunction with description of drawings the utility model embodiment, the left end of sealed case axle 1 is loaded on 3 li of two angular contact ball bearings of bearing housing 4, and these two angular contact ball bearings are installed in series bearing axial force, and plays axially and the radial location effect; Fixing stationary seal ring 9 on the end cap 6, all the other five stationary seal rings are separately fixed on five bodies 8 that are tightly connected; The right-hand member of end cap 6 and the left end of body 8 of being tightly connected are by screw, and sealed support 16 is connected with the right-hand member of the body 8 that is tightly connected, and the body that respectively is tightly connected of centre is together in series and through screw; The stationary seal ring 9 that is fixed together with the body 8 that is tightly connected is formed a sealing unit with corresponding rotary packing rings 10, be tightly connected body 8 and pressure equalizing valve 11; Rotary packing ring 10 is installed in the middle part of sealed case axle 1, final stage rotary packing ring 15 is contained in sealed case axle 1 right-hand member, steel backing composite sliding bearing 12 is equipped with in it and sealed support 16 and 14 of terminations of sealing, and the small end suit of sealed support 16 and sealing termination 14 supporting positive cover 13, to guarantee sealing centerings at different levels; Be provided with back-up ring 18 between two angular contact ball bearings, the right-hand member of bearing housing 4 is provided with sealing 5, also is provided with sealing in the bearing gland 2; The utility model left end is connected with motor 19 through coupling 20, right-hand member is connected with electric pump 23, the water that is flow to by pump water sucking mouth 22 flows at the annular space that is tightly connected between body 8 and the seal case 7, to having sealed cooling action, high pressure water enters electric pump 23 by the hole on 14 conical surfaces of sealing termination, respectively be tightly connected and plug cock 17 be housed on the body, when the utility model is installed, in the closed chamber of dynamic and static seal ring and the body that is tightly connected formation, fill with lubricant oil and tighten plug cock 17, to guarantee the lubricated of sealing surface.
Claims (2)
1, a kind of high-pressure rotary dynamic seal apparatus; It is characterized in that suit rotary packing ring on the sealed case axle, the stationary seal ring that joins with rotary packing ring is fixed on the body that is tightly connected, the sealing connecting body is provided with pressure equalizing valve, above-mentioned rotary packing ring, stationary seal ring, be tightly connected body and pressure equalizing valve formation sealing unit, a plurality of sealing units are together in series; Two are tightly connected is connected and fixed by screw between body, be tightly connected body and the stationary seal ring of left end are separately fixed on the end cap of left end, the right-hand member of the body that is tightly connected of right-hand member is connected on the sealed support through screw, between sealed support and final stage rotary packing ring, be provided with the steel backing composite sliding bearing between sealing termination and final stage rotary packing ring, sealed support is provided with supporting positive cover with the small end outside of sealing termination, the sealing termination is fixed with the right-hand member that has the seal case of pump water sucking mouth, and the right-hand member of seal case left end and end cap and bearing housing is fixed together; Be provided with rolling bearing at bearing housing and sealed case between centers, the two ends of bearing housing are provided with sealing.
2. high-pressure rotary dynamic seal apparatus as claimed in claim 1 is characterized in that bearing housing and sealed case between centers are installed with two angular contact ball bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95213047 CN2222265Y (en) | 1995-06-20 | 1995-06-20 | High-pressure rotation dynamic seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95213047 CN2222265Y (en) | 1995-06-20 | 1995-06-20 | High-pressure rotation dynamic seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2222265Y true CN2222265Y (en) | 1996-03-13 |
Family
ID=33863049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95213047 Expired - Fee Related CN2222265Y (en) | 1995-06-20 | 1995-06-20 | High-pressure rotation dynamic seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2222265Y (en) |
-
1995
- 1995-06-20 CN CN 95213047 patent/CN2222265Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |