CN204530669U - Self-sealing packer - Google Patents
Self-sealing packer Download PDFInfo
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- CN204530669U CN204530669U CN201520222929.9U CN201520222929U CN204530669U CN 204530669 U CN204530669 U CN 204530669U CN 201520222929 U CN201520222929 U CN 201520222929U CN 204530669 U CN204530669 U CN 204530669U
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- rubber sleeve
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- packer
- electrode structure
- sealing packer
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Abstract
The utility model belongs to marine fixed platform packer technology field, discloses a kind of self-sealing packer.Its technical characteristics is: comprise rubber sleeve, the bottom of described rubber sleeve is provided with base fixture, the top of rubber sleeve is provided with multiple interdigitated electrode structure band, and interdigitated electrode structure band place is provided with top fixture, and the gap of adjacent fingers type band forms grouting mouth.Self-sealing packer provided by the utility model, is directly installed on piling bar sheath, can saves steel.The structure design of self-sealing packer has taken into full account the environment for use of packer, has the advantage that the safety factor of active packer is high; Installation procedure is simple simultaneously, does not need pipeline and dynamical system, does not need to install post debugging operation, has the advantage of passive type packer.
Description
Technical field
The utility model belongs to marine fixed platform packer technology field, particularly relates to a kind of self-sealing packer.
Background technology
Marine fixed platform is generally made up of upper chunk and lower guide pipe support.Jacket and seabed fixing be generally by be placed in sleeve bottom the main leg of jacket with through sleeve and being fixedly connected with the piling bar squeezing into seabed.And be fixedly reached by the form of cementation between sleeve diameter and stake external diameter.
The marine major function with packer is under water when being in the milk after driving piles, and the space inside sleeve bottom shutoff annulus and between stake external diameter, prevents cement paste from flowing out.For weak soil sea bed, need packer self or supporting device to be used for preventing the mud in seabed from entering an annular space between external diameter and sleeve, ensure that cement paste is not contaminated.
At present, marine packer is under water divided into active packer and passive type packer by job category.Active packer is air heave type packer mainly, and the advantage of air heave type packer is: the inner surface making air heave type packer in post process not with the exterior surface of post; Be not subject to the restriction of cement paste weight and the depth of water; The appropriateness of the counter motion of stake and stake can be allowed eccentric; The impact load of stake that vibration when driving piles and stake cause due to marine loop wheel machine catenary motion in lower stake process can be stood.Shortcoming is system complex, needs to be equipped with power station, interface met an urgent need by hydraulic line, underwater robot.Once pipeline damages need underwater robot connecting hose under water; Installation and Debugging workload in land is large and costly, and offshore operations is complicated; There is residual hardware consumable anode, the existence harm diver underwater operation of pipeline; Cost is high.
Passive type packer mainly contains mechanical packer and Crux packer.The advantage of passive type packer is: do not need pipeline, dynamical system, valve installation and underwater robot back-up system; Do not need land to debug and offshore operations, play simultaneously and stop that mud enters the effect of annular space; There is no residual hardware consumable anode, the various pipeline of the diver's underwater operation that is safe from harm and valve; Low price.Shortcoming mainly contains: the application depth of water is restricted; Stake hurtles down, and likely causes packer to destroy, loses efficacy.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of advantage having active packer and passive type packer concurrently, and reaches the self-sealing packer that structure is simple, good sealing effect, cost are low.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: comprise rubber sleeve, the bottom of described rubber sleeve is provided with base fixture, the top of rubber sleeve is provided with multiple interdigitated electrode structure band, interdigitated electrode structure band place is provided with top fixture, and the gap of adjacent fingers type band forms grouting mouth.
Its additional technical feature is: the outside bending in bottom of described rubber sleeve, and base fixture is arranged on bending part;
Radially outwardly, base fixture is arranged on protuberance in the bottom of described rubber sleeve;
Described top fixture, base fixture are the security strip with bolt or rivet;
Described interdigitated electrode structure band evenly arranges at least 4 groups along the circumference of rubber sleeve;
The free end of described interdigitated electrode structure band is provided with raised line;
The outside of described rubber sleeve is provided with vertically organizes ring skeleton more, and ring skeleton is macromolecular scaffold or metallic framework;
The inwall of described rubber sleeve is provided with the polymeric coating layer reducing friction factor;
Annular backing board is provided with below described rubber sleeve.
When self-sealing packer provided by the utility model uses, rubber sleeve is set directly at the inner side of sleeve, the bottom of rubber sleeve is connected with sleeve seal by base fixture, gap between rubber sleeve and sleeve forms cement paste accommodating cavity, the top of rubber sleeve is provided with multiple interdigitated electrode structure band, interdigitated electrode structure band is connected with sleeve by top fixture, and the breach between the rubber sleeve of the gap formation of adjacent fingers type band and sleeve forms the mouth that is in the milk.Preliminary sealing is realized by rubber sleeve and top fixture, base fixture, in cement paste accommodating cavity between rubber sleeve and sleeve during grout injection, because the proportion of cement paste is heavier and make rubber sleeve bottom extended and expand to stake side than seawater, the sealability of packer becomes large along with the increase pouring into cement paste post height, thus plays sealing function.Self-sealing packer is directly installed on piling bar sheath, can save steel.The structure design of self-sealing packer has taken into full account the environment for use of packer, has the advantage that the safety factor of active packer is high; Installation procedure is simple simultaneously, does not need pipeline and dynamical system, does not need to install post debugging operation, has the advantage of passive type packer.
As required, the bottom of rubber sleeve is to sleeve bending, and bending part is connected with sleeve seal by base fixture, or the bottom of rubber sleeve is radially outstanding to sleeve, and protuberance is connected with sleeve seal by base fixture.Top fixture, base fixture are the security strip with bolt or rivet.And interdigitated electrode structure band evenly arranges at least 4 groups along the circumference of rubber sleeve, the free end of interdigitated electrode structure band is provided with raised line, connects tightr.The outside of rubber sleeve is provided with vertically organizes ring skeleton more, and ring skeleton is macromolecular scaffold or metallic framework, improves the intensity of rubber sleeve.The internal diameter of rubber sleeve interlude is less than the diameter of the stake in sleeve, rubber sleeve inwall is provided with the polymeric coating layer reducing friction factor, make the interlude of rubber sleeve closely be attached to the external surface of stake, when making grout injection, cement paste can flow in cement paste accommodating cavity completely.And the setting of polymeric coating layer can by stake drive piles work time be reduced to minimum to the wearing and tearing of rubber sleeve.The annular backing board be fixed on sleeve is provided with below rubber sleeve, in cement paste accommodating cavity between rubber sleeve and sleeve during grout injection, because the proportion of cement paste is heavier and make rubber sleeve bottom extended and expand to stake side than seawater, the annular backing board that bottom is settled prevents the bottom overdistension of rubber sleeve and the mandatory bottom of rubber sleeve that makes to stake surface spreading, limits thus play sealing function to rubber sleeve bottom extended.
Accompanying drawing explanation
Fig. 1 is the first use structural representation of the utility model self-sealing packer;
Fig. 2 is that the second of self-sealing packer uses structural representation;
Fig. 3 is the structural representation of self-sealing packer.
Detailed description of the invention
Be described in further detail below in conjunction with the structure of accompanying drawing to self-sealing packer provided by the utility model.
As shown in Figure 1, the utility model self-sealing packer comprises sleeve 1, the inner side of sleeve 1 is provided with the rubber sleeve 2 coaxial with sleeve 1, the bottom of rubber sleeve 2 is tightly connected by base fixture 3 and sleeve 1, gap between rubber sleeve 2 and sleeve 1 forms cement paste accommodating cavity 4, the top of rubber sleeve 2 is provided with multiple interdigitated electrode structure band 5, interdigitated electrode structure band 5 is connected with sleeve 1 by top fixture 6, breach between the rubber sleeve 2 of the gap formation of adjacent fingers type band 5 and sleeve 1 forms the mouth 7 that is in the milk, interdigitated electrode structure band 5 evenly arranges at least 4 groups along the circumference of rubber sleeve 2, the free end of interdigitated electrode structure band 5 is provided with raised line 8.As shown in Figure 2, the annular backing board 9 be fixed on sleeve 1 is provided with below rubber sleeve 2.As shown in Figure 3, the outside bending in bottom of rubber sleeve 2, bending part is provided with base fixture 3, the inner side of rubber sleeve 2 forms cement paste accommodating cavity 4, the top of rubber sleeve 2 is provided with multiple interdigitated electrode structure band 5, and interdigitated electrode structure band 5 is provided with top fixture 6, and the gap of adjacent fingers type band 5 forms grouting mouth 7, the free end of interdigitated electrode structure band 5 is provided with raised line 8, and top fixture 6, base fixture 3 are the security strip with bolt or rivet.
When self-sealing packer provided by the utility model uses, rubber sleeve 2 is set directly at the inner side of sleeve 1, preliminary sealing is realized by rubber sleeve 2 and top fixture 6, base fixture 3, in cement paste accommodating cavity 4 between rubber sleeve 2 and sleeve 1 during grout injection, because the proportion of cement paste is heavier and make rubber sleeve 2 bottom extended and expand to stake side than seawater, the sealability of packer becomes large along with the increase pouring into cement paste post height, thus plays sealing function.As required, the bottom of rubber sleeve 2 is to sleeve 1 bending, and bending part is tightly connected by base fixture 3 and sleeve 1, or the bottom of rubber sleeve 2 is radially outstanding to sleeve 1, and protuberance is tightly connected by base fixture 3 and sleeve 1.Top fixture 6, base fixture 3 are the security strip with bolt or rivet.And interdigitated electrode structure band 5 evenly arranges at least 4 groups along the circumference of rubber sleeve 2, the free end of interdigitated electrode structure band 5 is provided with raised line 8, connects tightr.The outside of rubber sleeve 2 is provided with vertically organizes ring skeleton more, and ring skeleton is macromolecular scaffold or metallic framework, improves the intensity of rubber sleeve 2.The internal diameter of rubber sleeve 2 interlude is less than the diameter of the stake in sleeve 1, rubber sleeve 2 inwall is provided with the polymeric coating layer reducing friction factor, make the interlude of rubber sleeve 2 closely be attached to the external surface of stake, when making grout injection, cement paste can flow in cement paste accommodating cavity 4 completely.And the setting of polymeric coating layer can by stake drive piles work time be reduced to minimum to the wearing and tearing of rubber sleeve 5.The annular backing board 9 be fixed on sleeve 4 is provided with below rubber sleeve 5, in cement paste accommodating cavity 4 between rubber sleeve 2 and sleeve 1 during grout injection, because the proportion of cement paste is heavier and make rubber sleeve 2 bottom extended and expand to stake side than seawater, the annular backing board 9 that bottom is settled prevents the bottom overdistension of rubber sleeve 2 and the mandatory bottom of rubber sleeve 2 that makes to stake surface spreading, limits rubber sleeve 2 bottom extended thus plays sealing function.
Protection domain of the present utility model is not only confined to above-described embodiment, as long as structure is identical with the utility model self-sealing packer, just drops on the scope of the utility model protection.
Claims (9)
1. self-sealing packer, comprise rubber sleeve, it is characterized in that: the bottom of described rubber sleeve is provided with base fixture, the top of rubber sleeve is provided with multiple interdigitated electrode structure band, interdigitated electrode structure band place is provided with top fixture, and the gap of adjacent fingers type band forms grouting mouth.
2. self-sealing packer according to claim 1, is characterized in that: the outside bending in bottom of described rubber sleeve, base fixture is arranged on bending part.
3. self-sealing packer according to claim 1, is characterized in that: radially outwardly, base fixture is arranged on protuberance in the bottom of described rubber sleeve.
4. self-sealing packer according to claim 1, is characterized in that: described top fixture, base fixture are the security strip with bolt or rivet.
5. self-sealing packer according to claim 1, is characterized in that: described interdigitated electrode structure band evenly arranges at least 4 groups along the circumference of rubber sleeve.
6. self-styled pattern packer according to claim 1 or 5, is characterized in that: the free end of described interdigitated electrode structure band is provided with raised line.
7. self-sealing packer according to claim 1, is characterized in that: the outside of described rubber sleeve is provided with vertically organizes ring skeleton more, and ring skeleton is macromolecular scaffold or metallic framework.
8. self-sealing packer according to claim 1, is characterized in that: the inwall of described rubber sleeve is provided with the polymeric coating layer reducing friction factor.
9. self-sealing packer according to claim 1, is characterized in that: be provided with annular backing board below described rubber sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520222929.9U CN204530669U (en) | 2015-04-15 | 2015-04-15 | Self-sealing packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520222929.9U CN204530669U (en) | 2015-04-15 | 2015-04-15 | Self-sealing packer |
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| Publication Number | Publication Date |
|---|---|
| CN204530669U true CN204530669U (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520222929.9U Active CN204530669U (en) | 2015-04-15 | 2015-04-15 | Self-sealing packer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108401436A (en) * | 2017-06-13 | 2018-08-14 | 衡橡科技股份有限公司 | A kind of elder generation's stake formula packer |
| CN110093908A (en) * | 2019-06-06 | 2019-08-06 | 衡橡科技股份有限公司 | A kind of tower packer insulating jacket cement slurry |
| EP3913145A4 (en) * | 2019-10-30 | 2022-10-26 | China Railway Major Bridge Reconnaissance & Design Institute Co., Ltd. | Packer and pile foundation structure |
-
2015
- 2015-04-15 CN CN201520222929.9U patent/CN204530669U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108401436A (en) * | 2017-06-13 | 2018-08-14 | 衡橡科技股份有限公司 | A kind of elder generation's stake formula packer |
| CN110093908A (en) * | 2019-06-06 | 2019-08-06 | 衡橡科技股份有限公司 | A kind of tower packer insulating jacket cement slurry |
| CN110093908B (en) * | 2019-06-06 | 2023-12-29 | 衡橡科技股份有限公司 | Tower packer for packing jacket cement paste |
| EP3913145A4 (en) * | 2019-10-30 | 2022-10-26 | China Railway Major Bridge Reconnaissance & Design Institute Co., Ltd. | Packer and pile foundation structure |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Hengshui City, Hebei Province, 053000 North Park industrial base Taocheng District Road No. 9 Patentee after: Heng an Polytron Technologies Inc Address before: 053000 Hengshui Industrial Park, Hebei, North Industrial Street, No. 1 Patentee before: Hengshui Rubber Co., Ltd. |