CN201170077Y - Ram block shaft seal components - Google Patents
Ram block shaft seal components Download PDFInfo
- Publication number
- CN201170077Y CN201170077Y CNU2008200742054U CN200820074205U CN201170077Y CN 201170077 Y CN201170077 Y CN 201170077Y CN U2008200742054 U CNU2008200742054 U CN U2008200742054U CN 200820074205 U CN200820074205 U CN 200820074205U CN 201170077 Y CN201170077 Y CN 201170077Y
- Authority
- CN
- China
- Prior art keywords
- ring
- shaped
- shaped ring
- sealing
- ram block
- 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
Images
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model discloses a sealing assembly for a flashboard of a blowout preventer, comprising a Y type sealing ring (1), a V-shaped ring (2), and a V-shaped seat ring (3). The V-shaped ring (2) is arranged in front of the V-shaped seat ring (3), and the Y-shaped sealing ring (1) is arranged in front of the V-shaped ring (2). The assembly is characterized in that the bottom of the Y-shaped sealing ring (1) is manufactured to be V-shaped, and the bottom matches the V-shaped ring (2) at the rear side. The rear side of the Y-shaped sealing ring (1) matches the V-shaped seat ring (3). The rear side of the V-shaped seat ring (4) is a plane. The sealing assembly can obtain a good sealing effect at a low pressure or a high pressure, and can prevent the sealing ring from being extruded and damaged at a high-pressure media, thereby improving the service life of the product and the reliability of the operation.
Description
Affiliated technical field
The utility model belongs to oil drilling facility parts, is meant a kind of oil drilling ram block shaft seal assembly especially.
Background technology
Preventer is the visual plant in the modern oil drilling, and it mainly acts on is the generation that prevents gas blowout accident in drilling process.Ram preventer is a kind of of preventer, and the oil cylinder that it is mainly closed by pressure-bearing shell, side door, flashboard, driving flashboard etc. is formed.The rod-type part that connects flashboard and driven plunger is called flashboard axis, and flashboard one side of flashboard axis is a medium in the well, and opposite side is for driving oil circuit.The ram block sealing is one of most important seal point of preventer, and its reliability has directly influenced the reliability of preventer.More common seal form has two kinds: in groups W circle or v-ring; Single-piece y-shaped ring or combination rectangular loop.Following problem is arranged: during actual the use 1) when the sealing ring that uses in groups, because structural restriction, its pretightning force size can't be adjusted, be difficult to compensation after the wearing and tearing, cause sealing effectiveness undesirable, 2) y-type seal ring low pressure or initial stage sealing effectiveness are better, but it is squeezed into the gap easily and destroys under the high pressure effect.
Summary of the invention
The purpose of the utility model is to overcome the above-mentioned deficiency of prior art, and a kind of improved ram block shaft seal assembly is provided, and it is simple in structure, and is easy for installation, and result of use is good.
For reaching above-mentioned purpose, the utility model is taked following technical scheme: the utility model includes: y-type seal ring, v shaped ring, V-shape base circle, v shaped ring is installed in the front of V-shape base circle, y-shaped ring is installed in the front of v shaped ring, their integral installations is characterized in that in closure gasket groove: V-arrangement has been made in the bottom of y-shaped ring, and is identical with the v shaped ring of back, y-shaped ring back and V-shape base circle coincide, and the back of V-shape base circle is the plane.
The utility model is taked technique scheme, have following beneficial effect: y-type seal ring has the better seal ability, but it is anti-extrudability relatively poor, Y-shaped ring and v shaped ring combination sealing in the utility model, V-arrangement is made in Y shape circle bottom, relative with hardness higher, anti-extrusion performance teflin ring preferably cooperates.V shaped ring can be single, also can a plurality ofly use in groups.When high-pressure medium affacts y-shaped ring, y-shaped ring transfers the pressure to the rear portion v shaped ring, its distortion is opened v shaped ring outward, itself and sealing surfaces are fitted tightly, prevent that the softer y-shaped ring of hardness is squeezed into seal clearance and destroys, v shaped ring also can participate in sealing simultaneously, thereby improves flashboard axis black box sealability under high pressure.Major advantage of the present utility model is: 1) all can obtain good sealing effectiveness under high and low pressure; 2) can prevent that sealing ring from extruding destruction under high-pressure medium, thereby improve the application life of product and the reliability of work.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described in detail.
Fig. 1 is the utility model structure diagram.
Mark among the figure: 1-Y shape sealing ring, 2-V shape circle, 3-V shape seat ring.
The specific embodiment
By shown in Figure 1, the utility model comprises: y-type seal ring 1, v shaped ring 2, V-shape base circle 3, v shaped ring 2 is installed in the front of V-shape base circle 3, y-shaped ring 1 is installed in the front of v shaped ring 2, their integral installations is characterized in that in closure gasket groove: V-arrangement has been made in the bottom of y-shaped ring 1, and is identical with the v shaped ring 2 of back, y-shaped ring 1 back and V-shape base circle 3 coincide, and the back of V-shape base circle 3 is the plane.
The utility model is installed on the sealing position as black box, and after the installation, the lip limit of y-shaped ring is by precommpression.Press the position among Fig. 1, the pressure medium of sealing is from top, pressure medium makes two lip limits of y-shaped ring fit closely with the sealing position, pressure medium is passed to the v shaped ring and the V-shape base circle of its back by y-shaped ring simultaneously, impel outside its lip limit Zhang Eryu sealing position to fit tightly, prevented that the Y sealing ring is squeezed into seal clearance and destroys.
The utility model y-type seal ring adopts quality of rubber materials, v shaped ring, V-arrangement Seat ring adopts the polytetrafluoroethylene (PTFE) material, and it combines rubber seal and polytetrafluoroethyl-ne Alkene sealing ring advantage separately.
Claims (1)
1, a kind of ram block shaft seal assembly, it comprises: y-type seal ring (1), v shaped ring (2), V-shape base circle (3), v shaped ring (2) is installed in the front of V-shape base circle (3), y-shaped ring (1) is installed in the front of v shaped ring (2), it is characterized in that: V-arrangement has been made in the bottom of y-shaped ring (1), coincide with the v shaped ring (2) of back, y-shaped ring (1) back and V-shape base circle (3) coincide, and the back of V-shape base circle (3) is the plane.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2008200742054U CN201170077Y (en) | 2008-03-26 | 2008-03-26 | Ram block shaft seal components |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2008200742054U CN201170077Y (en) | 2008-03-26 | 2008-03-26 | Ram block shaft seal components |
Publications (1)
Publication Number | Publication Date |
---|---|
CN201170077Y true CN201170077Y (en) | 2008-12-24 |
Family
ID=40209130
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNU2008200742054U Expired - Fee Related CN201170077Y (en) | 2008-03-26 | 2008-03-26 | Ram block shaft seal components |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN201170077Y (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108799498A (en) * | 2017-04-28 | 2018-11-13 | 凯氟隆(厦门)密封件有限公司 | A kind of Novel down-hole tool combinations encapsulation scheme |
-
2008
- 2008-03-26 CN CNU2008200742054U patent/CN201170077Y/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108799498A (en) * | 2017-04-28 | 2018-11-13 | 凯氟隆(厦门)密封件有限公司 | A kind of Novel down-hole tool combinations encapsulation scheme |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102080651B (en) | Long-acting no-leakage plunger sealing structure for plunger type measuring pump | |
CN201558748U (en) | Adjustable overflow pipe of whirlcone | |
CN201170077Y (en) | Ram block shaft seal components | |
CN102588610B (en) | Hydraulic cylinder with sealing follow-up device | |
CN201487257U (en) | Valve body and plug sealing structure of plunger type high-pressure adjusting valve | |
CN205663897U (en) | Regulation type metal seal butterfly valve | |
CN202901238U (en) | High pressure pump output shaft oil sealing structure | |
CN102108987A (en) | Oil cylinder | |
CN2814034Y (en) | C type ring sealing spacer | |
CN204040986U (en) | Double-strand chain piston rod sealer for pumping oil | |
CN101265870B (en) | Hydroturbine possessing cylinder-shaped valve upper end surface seal | |
CN103527802B (en) | Vacuum spray painting machine high sealing push-pull valve | |
CN102808946A (en) | Sealing mechanism of medical waste treating tank feed port | |
CN206495816U (en) | A kind of mechanical seal for pump suitable for the highly crystalline station of high solids | |
CN202646136U (en) | Sealing structure for pump | |
CN2580218Y (en) | Piston stop valve | |
CN204153191U (en) | A kind of pneumatic double valve plates wear-resistant sluice valve for dust medium runner | |
CN201367480Y (en) | Compressing apparatus of discharge hole of feeding device | |
CN202048047U (en) | Oil cylinder | |
CN201007359Y (en) | Adjustable piston valve | |
CN203948694U (en) | A kind of fixed metal hard-sealing ball valve | |
CN210003858U (en) | knife valve | |
CN203532794U (en) | Sealing stop valve | |
CN2580219Y (en) | Piston stop valve | |
CN221033958U (en) | Exposed skeleton motor shaft oil seal |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081224 |