CN104727772A - Nonmetal sealing device with metal shell - Google Patents

Nonmetal sealing device with metal shell Download PDF

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Publication number
CN104727772A
CN104727772A CN201510112128.1A CN201510112128A CN104727772A CN 104727772 A CN104727772 A CN 104727772A CN 201510112128 A CN201510112128 A CN 201510112128A CN 104727772 A CN104727772 A CN 104727772A
Authority
CN
China
Prior art keywords
metal shell
sealing device
seal body
lip
support member
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.)
Granted
Application number
CN201510112128.1A
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Chinese (zh)
Other versions
CN104727772B (en
Inventor
张鹏举
李博
梁斌
施佳
齐效文
黄河
汪伟俊
涂再君
许淑峰
汤有兵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MEIZUAN ENERGY TECHNOLOGY (SHANGHAI) Co Ltd
Original Assignee
MEIZUAN ENERGY TECHNOLOGY (SHANGHAI) Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MEIZUAN ENERGY TECHNOLOGY (SHANGHAI) Co Ltd filed Critical MEIZUAN ENERGY TECHNOLOGY (SHANGHAI) Co Ltd
Priority to CN201510112128.1A priority Critical patent/CN104727772B/en
Publication of CN104727772A publication Critical patent/CN104727772A/en
Application granted granted Critical
Publication of CN104727772B publication Critical patent/CN104727772B/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00Sealing or packing boreholes or wells
    • E21B33/02Surface sealing or packing
    • E21B33/03Well heads; Setting-up thereof
    • E21B33/035Well heads; Setting-up thereof specially adapted for underwater installations

Abstract

The invention provides a nonmetal sealing device with a metal shell. The nonmetal sealing device with the metal shell comprises a supporting piece, the metal shell and a sealing body, wherein the supporting piece is of a symmetrical structure, and the lip side of the supporting piece is in a broken-line shape; the metal shell is an annular cavity, the bottom edge of the metal shell is fixed on the lip side of the supporting piece, and the top edge of the metal shell is in a contracting shape; the sealing body is squeezed in the metal shell, the upper lip side and the lower lip side of the sealing body extend out of the top end and the bottom end of the metal shell respectively, and the lower lip side of the sealing body and the lip side of the supporting piece are fixed in an embedded mode. The sealing body is made of rubber materials. The upper lip side and the lower side of the sealing body are symmetrical structures respectively. At least one upper groove is formed in the upper lip side of the sealing body. The lip side of the supporting piece is provided with a plurality of symmetrical protrusions. The lower lip side of the sealing body is provided with a plurality of lower grooves embedded with the protrusions of the supporting piece. The upper groove is in a semi-circular shape. Each lower groove is in a semi-circular shape.

Description

A kind of nonmetal sealing device with metal shell
Technical field
The present invention relates to the seal that underwater oil mining equipment uses, specifically, relate to the nonmetal sealing device of the band metal shell used in a kind of underwater horizontal type production tree production system.
Background technology
In submarine oil recovery process, the mining equipment used needs to have good sealing, causes waste to avoid that Oil spills occurs, and contaminated environment.
In underwater oil equipment, metal end caps sealing (MEC), as the one of subsea production tree seal form, applies to annular space or other tubular body space sealings of subsea production tree in a large number.What the sealing in traditional subsea production tree annular space or tubular body space adopted is all-metal sealing, or adopts nonmetal sealing in tubular body space.All-metal sealing has good corrosion resistance, and metal o-ring can reach good sealing effectiveness in certain scope of application, such as, in higher pressure rating environment; But not metal sealing, as rubber seal, deformation quantity is larger under external force, it is high that once mounting is sealed to power, require relatively little to the metallic sealing section of contact, but its corrosion resistance, high pressure resistant, high and low temperature resistance is relatively poor, the position directly contacted with dielectric fluid is more easily aging, affects application life.For to be sealed in the specific environment of submarine oil recovery process, no matter be adopt metal seal or non-metallic seal, all there is certain defect, affect its sealing effectiveness.
Therefore, need a kind of novel MEC seal, above-mentioned shortcoming can be overcome, for production tree annular space or tubular body space provide good sealing, and improve the sealing performance of sealing device, promote the use of scope.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of nonmetal sealing device with metal shell, be integrated with the Corrosion Protection of metal sealing and the high resiliency performance of nonmetal sealing, not only ensure the corrosion resistance of sealing device, and improve the sealing performance of sealing device, save sealed material and enough elastic deformation amounts can be provided.
For achieving the above object, the invention provides a kind of nonmetal sealing device with metal shell, it comprises: support member, described support member is symmetrical structure, its lip limit is fold-line-shaped, metal shell, and described metal shell is annular housing, the base of described metal shell is fixed on the lip limit of described support member, and the top margin of described metal shell is gradually-reducing shape; Seal body, described seal body is squeezed in described metal shell, and the upper lip of described sealed body and lower lip are stretched out from the top of described metal shell and bottom respectively, and the lip limit of described lower lip and described support member is fitted and fixed with.
Preferably, described seal body adopts quality of rubber materials to make.
Preferably, the upper lip of described seal body and lower lip are respectively symmetrical structure.
Preferably, described upper lip is provided with at least one upper groove.
Preferably, the lip limit of described support member has the projection of multiple symmetry.
Preferably, the lower lip of described seal body is provided with the chimeric low groove of the projection of multiple and described support member.
Preferably, described upper groove semicircular in shape.
In addition, preferably, described low groove semicircular in shape.
From above-mentioned description with put into practice, the nonmetal sealing device of band metal shell provided by the invention, one, the seal body adopting the non-metallic materials such as rubber to make, has high resiliency, can ensure sealing performance; Its two, adopt metal material make metal shell, there is corrosion resistance; Can mechanical strength be improved, increase overall constant intensity and the sealing effectiveness of seal; Simultaneously for nonmetallic seal body provides spatial accommodation, the contact of seal body and dielectric fluid can be stoped; Its three, nonmetallic seal body is provided with upper groove and low groove, and it provides deformation space for seal body, and reduce encapsulant use amount, increase contact effect during seal body extruding, improve sealing performance, also effectively can prevent wearing and tearing during crimp; And the projection on low groove and support member is fitted and fixed with, and can realize seal body and be combined closely with support member; Its four, metal shell and seal body are used in conjunction with each other, and are integrated with the high resiliency performance of the Corrosion Protection of metal sealing and nonmetal sealing especially rubber bodies, not only ensure the corrosion resistance of sealing device, and improve the sealing performance of sealing device.
Accompanying drawing explanation
By below in conjunction with the description of accompanying drawing to embodiment, above-mentioned characteristic sum technological merit of the present invention will become apparent and easy understand.In the accompanying drawings,
Fig. 1 is the nonmetal sealing device schematic diagram of the band metal shell described in one embodiment of the invention;
Fig. 2 is the nonmetal sealing device using state schematic diagram of the band metal shell shown in Fig. 1.
Reference numeral:
Nonmetal sealing device 100 with metal shell:
10: support member; 20: metal shell; 30: seal body.
Detailed description of the invention
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, and below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the nonmetal sealing device schematic diagram of the band metal shell described in one embodiment of the invention.Fig. 2 is the nonmetal sealing device using state schematic diagram of the band metal shell shown in Fig. 1.As depicted in figs. 1 and 2, the nonmetal sealing device 100 of metal shell is with to comprise support member 10, metal shell 20 and sealed body 30.
Support member 10 is symmetrical structures, the cross section of support member 10 is circular, the two ends of support member 10 are lip limit, lip limit is fold-line-shaped, lip limit has two levels, and the level at edge, higher than the level at center, is connected by hypotenuse between two levels, in the plane at center, compartment of terrain is provided with multiple projection, and projection is symmetrical on lip limit.
Metal shell 20 is annular housing, and the top of this annular housing and bottom are opened type, and the base of metal shell 20 is fixed on the lip limit of support member 10, and usual each support member 10 two ends are each fixes a metal shell 20, and the top margin of metal shell 20 is gradually-reducing shape.Adopt the shell that metal material is made, such as stainless steel casing etc., can improve mechanical strength, stop the seal body 30 of its inside and the contact of dielectric fluid, more corrosion-resistant.
Seal body 30 is squeezed in metal shell 20, seal body 30 top is the gradually-reducing shape with metal shell 20 top similar shape, this convergent face with plane convergence, can reduce the use amount of encapsulant at its top, and seal body 30 can compress and be fitted on metal shell 20 inwall.
Upper lip and lower lip lay respectively at top and the bottom of seal body 30, the upper lip of sealed body 30 and lower lip are stretched out from the top of metal shell 20 and bottom respectively, the lip limit of lower lip and support member 10 is fitted and fixed with, and can combine closely, and can guarantee sealing again.Preferably, upper lip and the lower lip of seal body 30 are respectively symmetrical structure, and seal body 30 is also symmetrical structure.
Seal body 30 bottom squeeze is on the base of metal shell 20, by inclined-plane gradual transition between the bottom of seal body 30 and its lower lip, the sealing avoiding step-wise transition to cause is not good enough, fit and be fitted and fixed with in the lip limit of lower lip and support member 10, seal body 30 can be stably fixed on support member 10.
The top of metal shell 20 is contraction-like, the top of seal body 30 is also in contraction-like, the top of metal shell 20 can provide downward extruding force for the seal body 30 in cavity, certain amount of elastic deformation is provided, guarantee that metal shell 20 and sealed body 30 are combined closely, contraction-like seal body 30 also can reduce the use amount of sealed material simultaneously.
Preferably, seal body 30 adopts quality of rubber materials to make, and quality of rubber materials has certain elasticity, can produce certain deflection, realizes the compression distortion in metal shell 20, thus guarantees sealing.Also other nonmetallic materials with certain amount of elastic deformation can be adopted to make seal body 30.Preferably, upper lip is provided with at least one upper groove, is symmetric when being provided with multiple upper groove.Preferably, lower lip is provided with multiple low groove chimeric with the projection of support member 10, and low groove is symmetric.Upper groove and low groove can reduce the use amount of sealed material, and ensure that seal body 30 has enough deformation spaces and deflection, are convenient to compress distortion, guarantee sealing performance.In addition, low groove is identical with the number of projection and be fitted and fixed with, and can realize being connected and fixed of seal body 30 and support member 10.Preferably, the fluting of upper groove and low groove semicircular in shape, can provide larger deformation space and deflection for seal body, is convenient to realize compressing distortion in supporting cavity 20, thus ensures sealing performance.
Introduce the use procedure of the nonmetal sealing device 100 of band metal shell below.
Nonmetal sealing device 100 with metal shell is circulus, the outer wall of the nonmetal sealing device 100 with metal shell and the contact internal walls of pipeline body, the inwall of the nonmetal sealing device 100 with metal shell and the built-up member of pipeline tubular body or core body wall contacts, thus realize the channel seal in pipeline tubular body space.
The nonmetal sealing device of the band metal shell that the embodiment provided by the invention described above is provided, one, the seal body adopting the non-metallic materials such as rubber to make, has high resiliency, can ensure sealing performance; Its two, adopt metal material make metal shell, there is corrosion resistance; Can mechanical strength be improved, increase overall constant intensity and the sealing effectiveness of seal; Simultaneously for nonmetallic seal body provides spatial accommodation, the contact of seal body and dielectric fluid can be stoped; Its three, nonmetallic seal body is provided with upper groove and low groove, and it provides deformation space for seal body, and reduce encapsulant use amount, increase contact effect during seal body extruding, improve sealing performance, also effectively can prevent wearing and tearing during crimp; And the projection on low groove and support member is fitted and fixed with, and can realize seal body and be combined closely with support member; Its four, metal shell and seal body are used in conjunction with each other, and are integrated with the high resiliency performance of the Corrosion Protection of metal sealing and nonmetal sealing especially rubber bodies, not only ensure the corrosion resistance of sealing device, and improve the sealing performance of sealing device.
The above; be only the present invention's preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, any people being familiar with this technology is in the technical scope disclosed by the present invention; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.

Claims (8)

1. the nonmetal sealing device with metal shell, it comprises: support member, and described support member is symmetrical structure, and its lip limit is fold-line-shaped, it is characterized in that,
Metal shell, described metal shell is annular housing, and the base of described metal shell is fixed on the lip limit of described support member, and the top margin of described metal shell is gradually-reducing shape;
Seal body, described seal body is squeezed in described metal shell, and the upper lip of described sealed body and lower lip are stretched out from the top of described metal shell and bottom respectively, and the lip limit of described lower lip and described support member is fitted and fixed with.
2. the nonmetal sealing device of band metal shell as claimed in claim 1, is characterized in that, described seal body adopts quality of rubber materials to make.
3. the nonmetal sealing device of band metal shell as claimed in claim 1, it is characterized in that, upper lip and the lower lip of described seal body are respectively symmetrical structure.
4. the nonmetal sealing device of band metal shell as claimed in claim 1, it is characterized in that, described upper lip is provided with at least one upper groove.
5. the nonmetal sealing device of band metal shell as claimed in claim 1, is characterized in that the lip limit of described support member having the projection of multiple symmetry.
6. the nonmetal sealing device of band metal shell as claimed in claim 1, is characterized in that, the lower lip of described seal body is provided with the chimeric low groove of the projection of multiple and described support member.
7. the nonmetal sealing device of band metal shell as claimed in claim 4, is characterized in that, described upper groove semicircular in shape.
8. the nonmetal sealing device of band metal shell as claimed in claim 6, is characterized in that, described low groove semicircular in shape.
CN201510112128.1A 2015-03-13 2015-03-13 A kind of nonmetallic sealing device with metal shell Active CN104727772B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510112128.1A CN104727772B (en) 2015-03-13 2015-03-13 A kind of nonmetallic sealing device with metal shell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510112128.1A CN104727772B (en) 2015-03-13 2015-03-13 A kind of nonmetallic sealing device with metal shell

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CN104727772A true CN104727772A (en) 2015-06-24
CN104727772B CN104727772B (en) 2017-08-29

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Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB714185A (en) * 1951-02-03 1954-08-25 Emsco Derrick & Equip Co Improvements in or relating to packing for rods
US5803170A (en) * 1997-02-14 1998-09-08 Halliburton Energy Services, Inc. Well line protective apparatus
CN2533342Y (en) * 2001-09-19 2003-01-29 付继斌 Self-tightening seal ring for connection of Christmas tree
CN201027982Y (en) * 2007-03-26 2008-02-27 黄继荣 Novel sealing ring
CN201100406Y (en) * 2007-10-31 2008-08-13 李建新 Sealing ring for setting arc reverse corner
CN201103683Y (en) * 2007-08-10 2008-08-20 安徽省宁国市正轼密封件有限公司 Gas spring sealing ring of U-shape/L-shape framework
CN201610940U (en) * 2009-12-29 2010-10-20 深圳市富洋密封件有限公司 Thermoplastic polyurethane composite seal ring
CN201636318U (en) * 2010-04-06 2010-11-17 江苏金石油气井口科技有限公司 Rubber-excited metal sealing ring
CN201757177U (en) * 2010-07-16 2011-03-09 上海以琳石油机械制造有限公司 Sealing ring of oil pipe hanger
CN102797852A (en) * 2011-05-25 2012-11-28 株式会社爱德克斯 Annular seal member
CN203023473U (en) * 2012-12-28 2013-06-26 北京华德广研密封件有限公司 Seal assembly
CN203548587U (en) * 2013-11-12 2014-04-16 无锡华洋滚动轴承有限公司 High-temperature-resistant oil-pressure-resistant double-layer rubber sealing ball bearing
CN203809681U (en) * 2014-04-28 2014-09-03 南车眉山车辆有限公司 Combined type tooth-shaped sealing ring for railway vehicle flange

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB714185A (en) * 1951-02-03 1954-08-25 Emsco Derrick & Equip Co Improvements in or relating to packing for rods
US5803170A (en) * 1997-02-14 1998-09-08 Halliburton Energy Services, Inc. Well line protective apparatus
CN2533342Y (en) * 2001-09-19 2003-01-29 付继斌 Self-tightening seal ring for connection of Christmas tree
CN201027982Y (en) * 2007-03-26 2008-02-27 黄继荣 Novel sealing ring
CN201103683Y (en) * 2007-08-10 2008-08-20 安徽省宁国市正轼密封件有限公司 Gas spring sealing ring of U-shape/L-shape framework
CN201100406Y (en) * 2007-10-31 2008-08-13 李建新 Sealing ring for setting arc reverse corner
CN201610940U (en) * 2009-12-29 2010-10-20 深圳市富洋密封件有限公司 Thermoplastic polyurethane composite seal ring
CN201636318U (en) * 2010-04-06 2010-11-17 江苏金石油气井口科技有限公司 Rubber-excited metal sealing ring
CN201757177U (en) * 2010-07-16 2011-03-09 上海以琳石油机械制造有限公司 Sealing ring of oil pipe hanger
CN102797852A (en) * 2011-05-25 2012-11-28 株式会社爱德克斯 Annular seal member
CN203023473U (en) * 2012-12-28 2013-06-26 北京华德广研密封件有限公司 Seal assembly
CN203548587U (en) * 2013-11-12 2014-04-16 无锡华洋滚动轴承有限公司 High-temperature-resistant oil-pressure-resistant double-layer rubber sealing ball bearing
CN203809681U (en) * 2014-04-28 2014-09-03 南车眉山车辆有限公司 Combined type tooth-shaped sealing ring for railway vehicle flange

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