CN201865612U - Multi-component combination balanced stress type ball-shaped rubber core of annular blowout preventer - Google Patents
Multi-component combination balanced stress type ball-shaped rubber core of annular blowout preventer Download PDFInfo
- Publication number
- CN201865612U CN201865612U CN2010206039642U CN201020603964U CN201865612U CN 201865612 U CN201865612 U CN 201865612U CN 2010206039642 U CN2010206039642 U CN 2010206039642U CN 201020603964 U CN201020603964 U CN 201020603964U CN 201865612 U CN201865612 U CN 201865612U
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- rubber core
- glue core
- layer
- blowout preventer
- core
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Abstract
The utility model provides a multi-component combination balanced stress type ball-shaped rubber core of an annular blowout preventer, which relates to a pressure bearing sealing element in the blowout preventer. The utility model aims at providing the ball-shaped rubber core of the blowout preventer, which has the advantages that each part of the rubber core has the optimum stress distribution, and in addition, the rubber core and support ribs can be effectively matched. The utility model has the technical scheme that the multi-component combination balanced stress type ball-shaped rubber core of the annular blowout preventer comprises an annular rubber core, wherein a plurality of support ribs are symmetrically embedded in the outer wall of the rubber core by using the central axis of the rubber core as the symmetry axis, connecting parts between the middle parts of the support ribs and the rubber core are provided with a transition layer used for preventing the support ribs from being disengaged from the rubber core, and the transition layer comprises a bonding agent layer, a hard rubber layer, a fiber reinforcing layer and a soft rubber layer which are in sequential connection, wherein the bonding agent layer is connected with the support ribs, the soft rubber layer is connected with the rubber core, and the hardness of the rubber core is gradually increased in a direction from top to bottom and from outside to the central axis of the rubber core. The multi-component combination balanced stress type ball-shaped rubber core of the annular blowout preventer is mainly used in the blowout preventer.
Description
Technical field
The utility model relates to the pressure bearing and seal spare in a kind of preventer, particularly relates to a kind of preventer ball-type glue core.
Technical background
In drilling process,, because the complexity and the uncertainty of the geology state that architectonic complexity causes, all have at any time overflow, the well kick drilling failure until blowout takes place particularly when drilling tool closely during layer fluid.Preventer is exactly the very crucial important appliance arrangement that is used to control gas blowout accident, if blowout control is bad, will cause great property loss, casualties, and harm such as environment pollution, great especially is exactly a great calamity! No matter analyze as can be seen in the middle of repeatedly accident both domestic and external, be immediate cause or remote cause, all relevant with preventer.This shows the extreme critical importance of preventer in drilling well! And the blowout preventer glue core is the core part of preventer, and can a lot of parts of preventer and work all launch around the pressure-bearing and effectively the sealing of glue core of preventer, this shows the extreme critical importance of blowout preventer glue core! Because the glue core is in the process of work, the suffered tensile stress of glue core that is in the brace rod position is different, but the glue core in the middle of the prior art does not well address this problem, is connected between glue core and the brace rod on the one hand not in place, disengaging easily, on the other hand, the glue core is cracked easily, application life is very short, and causes sealing effectiveness poor, causes the generation of accident easily.
The utility model content
The purpose of this utility model provides a kind of each several part of glue core that can make and has the spherical glue core of the preventer that can effectively cooperate between optimum stress distribution and glue core and the brace rod.
For achieving the above object, the technical solution adopted in the utility model is: polynary compound, the spherical glue core of stress equilibrium type annular preventer, comprise circular glue core, a plurality of brace rods are embedded in the outer wall of glue core with respect to the central axis symmetry of glue core, and described brace rod middle part is provided with the transition zone that is used to prevent brace rod and the disengaging of glue core with the position that the glue core joins.
Described transition zone comprises adhesive layer, vulcanie layer, fiber-reinforced layer and the soft rubber layer that connects successively, and wherein adhesive layer is connected with brace rod, and the soft rubber layer is connected with the glue core.
The hardness of described glue core from top to bottom, increase from export-oriented glue core central axial direction gradually.
From above-mentioned architectural feature of the present utility model as can be seen, its advantage is: design respectively by the each several part hardness with the glue core, fully adapt to the variation in the course of the work of each several part stress, and the adding of novelty the setting of transition zone, make between brace rod and the glue core effectively to cooperate, be not easy to break away from, the design of total has fully taken into account the seal and pressure bearing effect of glue core in preventer, and application life significantly increase, corresponding operation cost is effectively reduced.
Description of drawings
The utility model will illustrate by way of compared with accompanying drawings and combined with example:
Fig. 1 is the utility model broken section structural representation
Fig. 2 is the utility model sectional structure schematic diagram in the course of the work
Fig. 3 is the structural representation of brace rod of the present utility model
The 4th, adhesive layer 5 is that vulcanie layer 6 is fiber-reinforced layers
The 7th, soft rubber layer 8 is that housing 9 is pistons
The 10th, drilling rod
The specific embodiment
The utility model is described further by embodiment below in conjunction with accompanying drawing:
Preferred embodiment
As shown in Figure 1-Figure 3 polynary compound, the spherical glue core of stress equilibrium type annular preventer, in the course of the work, whole device is placed in the housing 8 of preventer, its underpart is promoted by piston 9, top is subjected to the restriction that housing 8 internal diameters reduce gradually, so when piston 9 moves upward, glue core 1 is under the restriction of housing 8, progressively inwardly move and clamp drilling rod 10 in the upper end of glue core 1, because in glue core 1 extruded process, its stress that is subjected to from top to bottom, progressively reduce from outside to inside, so the requirement that meets with stresses for glue core 1 various piece is also just different, we progressively increase the variation that adapts to its stress with the hardness of glue core 1 from top to bottom from outside to inside.
In addition, in order to prevent that brace rod 2 and glue core 1 break away from mutually in the process of work, connect bond site at it and be provided with transition zone 3, make its bond site add rubber again from metal surface of the prior art adding additives, change into metal surface of the present utility model (just brace rod 2) and add that adhesive layer 4 adds that vulcanie layer 5 adds that fiber-reinforced layer 6 is adding soft rubber layer 7, such structure can make the combination between brace rod 2 and the glue core 1 more tight and have certain elasticity, in the process of STRESS VARIATION, can not cause disengaging, well promote the safety of device.
Disclosed all features in this manual except mutually exclusive feature, all can make up by any way.
Disclosed arbitrary feature in this manual (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
Claims (3)
1. many units are compound, the spherical glue core of stress equilibrium type annular preventer, comprise circular glue core (1), a plurality of brace rods (2) are embedded in the outer wall of glue core (1) with respect to the central axis symmetry of glue core (1), it is characterized in that the position that described brace rod (2) middle part and glue core (1) join is provided with the transition zone (3) that is used to prevent brace rod (2) and glue core (1) disengaging.
2. polynary compound, the spherical glue core of stress equilibrium type annular preventer according to claim 1, it is characterized in that described transition zone (3) comprises adhesive layer (4), vulcanie layer (5), fiber-reinforced layer (6) and the soft rubber layer (7) that connects successively, wherein adhesive layer (4) is connected with brace rod (2), and soft rubber layer (7) is connected with glue core (1).
3. the spherical glue core of polynary compound, stress equilibrium type annular preventer according to claim 1 and 2, the hardness that it is characterized in that described glue core (1) are from top to bottom, increase from export-oriented glue core (1) central axial direction gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206039642U CN201865612U (en) | 2010-11-12 | 2010-11-12 | Multi-component combination balanced stress type ball-shaped rubber core of annular blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206039642U CN201865612U (en) | 2010-11-12 | 2010-11-12 | Multi-component combination balanced stress type ball-shaped rubber core of annular blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201865612U true CN201865612U (en) | 2011-06-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206039642U Expired - Fee Related CN201865612U (en) | 2010-11-12 | 2010-11-12 | Multi-component combination balanced stress type ball-shaped rubber core of annular blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201865612U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107429553A (en) * | 2014-12-09 | 2017-12-01 | 海德里尔美国配送有限责任公司 | The variable ram packer of feature is reduced with strain |
| CN107740681A (en) * | 2017-11-07 | 2018-02-27 | 四川新为橡塑有限公司 | A kind of ball-type glue core and its production mould and production method |
| CN114396241A (en) * | 2022-03-28 | 2022-04-26 | 四川新为橡塑有限公司 | Double-layer sealed spherical rubber core and annular blowout preventer |
| CN115898319A (en) * | 2023-02-24 | 2023-04-04 | 四川新为橡塑有限公司 | Compound annular preventer of two rubber cores |
-
2010
- 2010-11-12 CN CN2010206039642U patent/CN201865612U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107429553A (en) * | 2014-12-09 | 2017-12-01 | 海德里尔美国配送有限责任公司 | The variable ram packer of feature is reduced with strain |
| CN107429553B (en) * | 2014-12-09 | 2019-10-22 | 海德里尔美国配送有限责任公司 | The variable ram packer of feature is reduced with strain |
| CN107740681A (en) * | 2017-11-07 | 2018-02-27 | 四川新为橡塑有限公司 | A kind of ball-type glue core and its production mould and production method |
| CN107740681B (en) * | 2017-11-07 | 2024-03-26 | 四川新为橡塑有限公司 | Spherical rubber core, production die and production method thereof |
| CN114396241A (en) * | 2022-03-28 | 2022-04-26 | 四川新为橡塑有限公司 | Double-layer sealed spherical rubber core and annular blowout preventer |
| CN114396241B (en) * | 2022-03-28 | 2022-06-10 | 四川新为橡塑有限公司 | Double-layer sealed spherical rubber core and annular blowout preventer |
| CN115898319A (en) * | 2023-02-24 | 2023-04-04 | 四川新为橡塑有限公司 | Compound annular preventer of two rubber cores |
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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: 20110615 Termination date: 20181112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |