CN103591290A - Improved combined sealing ring - Google Patents
Improved combined sealing ring Download PDFInfo
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- CN103591290A CN103591290A CN201310566115.2A CN201310566115A CN103591290A CN 103591290 A CN103591290 A CN 103591290A CN 201310566115 A CN201310566115 A CN 201310566115A CN 103591290 A CN103591290 A CN 103591290A
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Abstract
The invention provides an improved combined sealing ring. The improved combined sealing ring comprises a metal sealing ring body and two nonmetal sealing ring bodies symmetrically located at the two ends of the metal sealing ring body, and is characterized in that a fixing groove is formed in the center of the outer side of the ring wall of the metal sealing ring body, and the fixing groove is symmetrically and sequentially provided with grooves and sealing faces towards the two ends, wherein the grooves are used for containing the nonmetal sealing ring bodies, and the sealing surfaces are used for achieving sealing in cooperation with flanges; the two nonmetal sealing ring bodies are placed in the grooves which are formed in the metal sealing ring body and used for containing the nonmetal sealing ring bodies. The improved combined sealing ring can be disassembled and replaced by an artificial robot under water, the process of collecting the sealing ring and the flanges to the land for replacement is avoided, operating time is shortened, and operating efficiency is improved; automatic and precise butt joint of the combined inner and outer pressure sealing ring can be achieved under the action of pretightening force of the flanges, so that the whole sealing ring bears large applied load, the problem of sealing failure caused by overlarge inner pressure is solved, engineering safety is guaranteed, and engineering quality is improved.
Description
Technical field
The present invention relates to sealing configuration, relate in particular to a kind of improved composite seal ring that is applicable to deepwater environment.
Background technique
Metal sealing, due to the material behavior of himself and good machinability, is widely used in High Temperature High Pressure field of sealing technology.Wherein, radial spherical sealing is a kind of common type in self-energized seal, often can adopt under water metallic spheric surface sealing as main seal form in the connection of each class formation.In the application in ocean engineering field, composite seal ring possesses the ability of the interior pressure of closed conduit high-temperature oil gas and low temperature seawater external pressure simultaneously, can better solve the underwater sealing problem of ocean engineering.Existing composite seal ring comprises: metal o-ring and nonmetal seal ring, wherein, nonmetal seal ring is arranged in metal o-ring conical surface groove, thereby realizes nonmetal sealing.Because the difficulty of seabed operation is very large, especially the deep underwater pipes that surpasses 500 meters is tightly connected, can only install by underwater robot less important work, add the special construction of composite seal ring, need special-purpose seal ring mounting and dismounting tool to complete under water installation, replacing and the dismounting of seal ring; In addition, seal ring installation precision is had relatively high expectations, and makes when the flange arrangement to coordinating with seal ring is installed, and its installation difficulty and risk are larger; Moreover, due to the uncertainty of environments such as subsea, and transmit the thermal expansion of pipeline that high-temperature oil gas causes, make the sealing configuration of existing composite metal seal ring because pressure is excessive, cause seal failure, all bring very big hidden danger with safety to construction quality under water.Therefore there is pending improvement.
Summary of the invention
Main purpose of the present invention is to overcome the above-mentioned shortcoming that prior art exists, and provide a kind of improved composite seal ring, can be under water by artificial robot (ROV) dismounting and change, avoid seal ring and flange to be recycled to the process that land is changed, effectively reduce the activity duration, improve operating efficiency; Can also make this compound inside and outside pressure seal ring under the effect of flange pretightening force, realize automatic precision docking, so that whole seal ring can bear larger plus load, thereby avoid the excessive problem that causes seal failure of interior pressure, guarantee engineering safety, improve construction quality.
The object of the invention is to be realized by following technological scheme.
The improved composite seal ring of the present invention, comprises a metal sealing circle body and two nonmetal sealing circle bodies, and two nonmetal sealing circle body symmetries are positioned at the two ends of metal sealing circle body; It is characterized in that: outside described metal sealing circle body circle wall, central authorities are provided with fixed groove, this fixed groove respectively to two ends symmetry be provided with successively the groove placed for nonmetal sealing circle body and with the sealing surface of flange seal; These two nonmetal sealing circle bodies are placed on respectively in the groove that the nonmetal sealing circle body of confession that metal sealing circle body is provided with places.
Aforesaid improved composite seal ring, wherein: the fixed groove that described metal sealing circle body circle wall outside central authorities are provided with is that the angle between the inwall of this groove and groove inner bottom surface is 100 degree to 150 degree along the integrated groove of metal sealing circle body circle wall circumferencial direction.
Aforesaid improved composite seal ring, wherein: the groove that the nonmetal sealing circle body of described confession is placed is two, these two grooves are the symmetrical both sides that are positioned at the fixed groove that metal sealing circle body circle wall outside is provided with respectively, and these two grooves are that the nonmetal seal ring shape of this groove and extrusion matches along the integrated groove of metal sealing circle body circle wall circumference Zhou Fangxiang.
Aforesaid improved composite seal ring, wherein: described metal sealing circle body circle wall outside is provided with two grooves placing for nonmetal sealing circle body and at its both sides circle wall, is provided with and is convenient to the extrusion of nonmetal sealing circle body and the sealing surface of protuberance sealing respectively, sealing face is ，Gai plane of inclination, plane of inclination and the extrusion of nonmetal sealing circle body and the angle of inclination of protuberance matches.
Aforesaid improved composite seal ring, wherein: described and sealing surface flange seal lays respectively at the metal sealing circle body circle wall outside away from two nonmetal sealing circle body sealing surfaces outsides of fixed groove, should match with sealing surface and the flange facing shape of flange seal.
Aforesaid improved composite seal ring, wherein: described metal sealing circle body is that stainless steel is one-body molded; Described nonmetal sealing circle body is that rubber or polyurethane material are one-body molded.
The beneficial effect of the improved composite seal ring of the present invention: it can be avoided seal ring and flange to be recycled to the process that land is changed under water by artificial robot (ROV) dismounting and change, effectively reduces the activity duration, improves operating efficiency; Can also make this compound inside and outside pressure seal ring under the effect of flange pretightening force, realize automatic precision docking, so that whole sealing configuration can bear larger plus load, thereby avoid the excessive problem that causes seal failure of interior pressure, guarantee engineering safety, improve construction quality.
Accompanying drawing explanation:
Fig. 1 is the overall structure schematic diagram of the improved composite seal ring of the present invention.
Fig. 2 is the improved composite seal ring decomposition texture of the present invention schematic diagram.
Fig. 3 is the metal o-ring body structure schematic diagram of the improved composite seal ring of the present invention.
Fig. 4 is that the improved composite seal ring of the present invention is used phase diagram.
Major label description in figure:
1 metal sealing circle body, 2 nonmetal sealing circle bodies, the 2 ' nonmetal sealing circle body, the sealing surface of 3 metal sealing circle bodies and flange seal, the sealing surface of 3 ' metal sealing circle body and flange seal, 4 grooves, 4 ' groove, 5 lower flanges, 61 with the sealing surface of nonmetal sealing circle body sealing, 62 with the sealing surface of nonmetal sealing circle body sealing, 63 with the sealing surface of nonmetal sealing circle body sealing, 64 with the sealing surface of nonmetal sealing circle body sealing, 7 fixed grooves, 8 upper flanges, elastic seal ring locating piece in 9 upper flanges.
Embodiment:
As shown in Figure 1, Figure 2, Figure 3, Figure 4, the improved composite seal ring of the present invention, comprises that a metal sealing circle body 1 and 2,2 ', two nonmetal sealing circle body symmetries of two nonmetal sealing circle bodies are positioned at the two ends of metal sealing circle body; Its improvements are: outside described metal sealing circle body 1 circle wall, central authorities are provided with fixed groove 7, this fixed groove 7 respectively to two ends symmetry be provided with successively the groove 4 placed for nonmetal sealing circle body, 4 ' and with the sealing surface 3,3 ' of flange seal; These two nonmetal sealing circle bodies 2,2 ' are placed on respectively in groove that the nonmetal sealing circle body of confession that metal sealing circle body 1 is provided with places 4,4 '.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, the improved composite seal ring of the present invention, wherein: the fixed groove 7 that described metal sealing circle body 1 circle wall outside central authorities are provided with is that the angle between the inwall of this groove and groove inner bottom surface is 100 degree to 150 degree along the integrated groove of metal sealing circle body circle wall circumferencial direction.The groove that the nonmetal sealing circle body of described confession is placed is two, this two grooves 4,4 ' are the symmetrical both sides that are positioned at the fixed groove 7 that metal sealing circle body circle wall outside is provided with respectively, and these two grooves are that the nonmetal seal ring shape of this groove and extrusion matches along the integrated groove of metal sealing circle body circle wall circumference Zhou Fangxiang.Described metal sealing circle body circle wall outside is provided with two grooves placing for nonmetal sealing circle body and at its both sides circle wall, is provided with and is convenient to the extrusion of nonmetal sealing circle body and the sealing surface 61,62,63,64 of protuberance sealing respectively, sealing face is ，Gai plane of inclination, plane of inclination and the extrusion of nonmetal sealing circle body and the angle of inclination of protuberance matches.Described and sealing surface 3,3 ' flange seal lays respectively at the metal sealing circle body circle wall outside away from two nonmetal sealing circle body sealing surfaces outsides of fixed groove 7, should match with sealing surface and the flange facing shape of flange seal.Described metal sealing circle body 1 is that stainless steel is one-body molded; Described two nonmetal sealing circle bodies 2,2 ' are that rubber or polyurethane material are one-body molded.
When the improved composite seal ring of the present invention is used: adopt metallic material to make upper flange 8 and lower flange 5, make flange hardness higher than metal o-ring 1.During installation, first upper flange 8 liftings are fixed, again composite sealing ring is approached to upper flange 8 from bottom to top, when composite sealing ring moves straight up, the outer end of its fixed groove 7 promotes the inside of the elastic seal ring locating piece 9 indentation upper flanges 8 in two upper flanges, the metal sealing circle body of seal ring to be composite one of them while contacting with upper flange 8 sealing surfaces with the sealing surface of flange seal, composite sealing ring motion puts in place, elastic seal ring locating piece 9 in upper flange 8 ejects under the effect of its elastic supporting member for supporting optical member, extend the inside of fixed groove 7, cancelling upper flange 8 after external force is that portability composite sealing ring moves to lower flange 5 tops, positions jointly, composite sealing ring is transferred to lower flange 5, to metal sealing circle body, another just completes installation process after contacting completely with lower flange 5 with the sealing surface of flange seal.Finally, working pressure machine applies thrust load, and upper flange 8 and lower flange 5 are applied to active force, realizes the deep water compressive strain of replaceable composite sealing ring under water, and then realizes sealing.By upper flange 8 and the inner confined space of lower flange 5 to completing sealing, pass into high pressure oil, and carry out pressurize, test deep water is the performance of replaceable composite sealing ring under water, as shown in Figure 4.Adjust press machine thrust load and suppress pressure, observing leakage situation, when the pretightening force of press machine reaches 36t, high pressure oil pressure reaches 35MPa, pressurize 1 hour, pipeline does not leak, and prove that sealing is effective.
The working principle of the improved composite seal ring of the present invention and advantage:
1, the sealing surface 3,3 ' that metal sealing circle body seals with flange coordinates with upper flange 8 and lower flange 5 sealing surfaces respectively, can inner high-pressure oil gas be sealed; Nonmetal sealing circle body 2,2 ' is separately fixed in groove that metal sealing circle body is provided with 4,4 ', after pressurization, the extrusion of nonmetal sealing circle body and protuberance are positioned at groove both sides and sealing surface 61,62,63,64 places nonmetal sealing circle body sealing, the nonmetal sealing circle body at this place is subject to upper flange 8 and lower flange 5 motion extruding, can produce great resiliently deformable, thereby can outside seawater be sealed; Upper flange 8 is inner arrange there is the fixed groove 7 that elastic carrying capacity and telescopic seal ring locating piece 9 are positioned at improved composite seal ring, upper flange and lower flange and sealing circle are locked, and facilitate the underwater installing/dismounting of sealing circle.
While 2, using, metal sealing circle body contacts with lower flange 5 with upper flange 8 with sealing surface 3 and the nonmetal sealing circle body of flange seal simultaneously, forms metal to metal seal and nonmetal-metal sealing, thereby realizes composite seal, improve leakage efficiency, saved usage space.
3, the fixed groove of improved composite seal ring can match with the seal ring positioning means arranging on flange, makes seal ring can comparatively conveniently install under water, dismantle and change, and operation facilitates efficiency high.
4, the sealing surface 3,3 ' of improved composite seal ring and flange seal is symmetricly set on outer end, metal sealing circle body fixed groove both sides, can prevent that high-pressure oil gas from leaking out to device external.
5, the sealing surface of metal sealing circle body and the sealing of nonmetal sealing circle body is symmetricly set on the metal sealing circle body circle wall of groove both sides, in the time of improved composite seal ring work, outside seawater can infiltrate into nonmetal sealing circle body sealing surface place, the extruding that now nonmetal sealing circle body is subject to external force can produce distortion, whole nonmetal sealing circle body and flange tightly fit together, reach sealing effect, can effectively stop that seawater is to the infiltration of device interior.
6, fixed groove is arranged on the central position of composite seal face, can with upper flange in the acting in conjunction of elastic seal ring locating piece, realize the function of location composite seal ring, this this project organization is saved space, is beneficial to the realization of locating function.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, any simple modification, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment, all still belong in the scope of technical solution of the present invention.
Claims (6)
1. an improved composite seal ring, comprises a metal sealing circle body and two nonmetal sealing circle bodies, and two nonmetal sealing circle body symmetries are positioned at the two ends of metal sealing circle body; It is characterized in that: outside described metal sealing circle body circle wall, central authorities are provided with fixed groove, this fixed groove respectively to two ends symmetry be provided with successively the groove placed for nonmetal sealing circle body and with the sealing surface of flange seal; These two nonmetal sealing circle bodies are placed on respectively in the groove that the nonmetal sealing circle body of confession that metal sealing circle body is provided with places.
2. improved composite seal ring according to claim 1, it is characterized in that: the fixed groove that described metal sealing circle body circle wall outside central authorities are provided with is that the angle between the inwall of this groove and groove inner bottom surface is 100 degree to 150 degree along the integrated groove of metal sealing circle body circle wall circumferencial direction.
3. improved composite seal ring according to claim 1, it is characterized in that: the groove that the nonmetal sealing circle body of described confession is placed is two, these two grooves are the symmetrical both sides that are positioned at the fixed groove that metal sealing circle body circle wall outside is provided with respectively, and these two grooves are that the nonmetal seal ring shape of this groove and extrusion matches along the integrated groove of metal sealing circle body circle wall circumference Zhou Fangxiang.
4. improved composite seal ring according to claim 1, it is characterized in that: described metal sealing circle body circle wall outside is provided with two grooves placing for nonmetal sealing circle body and at its both sides circle wall, is provided with and is convenient to the extrusion of nonmetal sealing circle body and the sealing surface of protuberance sealing respectively, sealing face is ，Gai plane of inclination, plane of inclination and the extrusion of nonmetal sealing circle body and the angle of inclination of protuberance matches.
5. improved composite seal ring according to claim 1, it is characterized in that: described and sealing surface flange seal lays respectively at the metal sealing circle body circle wall outside away from two nonmetal sealing circle body sealing surfaces outsides of fixed groove, should match with sealing surface and the flange facing shape of flange seal.
6. improved composite seal ring according to claim 1, is characterized in that: described metal sealing circle body is that stainless steel is one-body molded; Described nonmetal sealing circle body is that rubber or polyurethane material are one-body molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310566115.2A CN103591290B (en) | 2013-11-14 | 2013-11-14 | The composite seal ring improved |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310566115.2A CN103591290B (en) | 2013-11-14 | 2013-11-14 | The composite seal ring improved |
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| CN103591290A true CN103591290A (en) | 2014-02-19 |
| CN103591290B CN103591290B (en) | 2015-11-18 |
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| CN201310566115.2A Active CN103591290B (en) | 2013-11-14 | 2013-11-14 | The composite seal ring improved |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104147826A (en) * | 2014-08-19 | 2014-11-19 | 佛山市金凯地过滤设备有限公司 | High sealing feeding device of filter press |
| CN110500406A (en) * | 2019-06-27 | 2019-11-26 | 北京七星华创流量计有限公司 | Sealing structure and mass flow controller |
| CN113719252A (en) * | 2021-08-28 | 2021-11-30 | 中海石油(中国)有限公司湛江分公司 | Underwater well head connector combined type metal sealing ring |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111136610B (en) * | 2019-12-25 | 2021-06-11 | 哈尔滨工程大学 | Hydraulic operation type sealing ring replacing tool |
Citations (6)
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| GB249614A (en) * | 1925-01-01 | 1926-04-01 | Berkel & Parnall Mach Mfg Co | Improvements in sharpening devices for slicing machines |
| JPH10237424A (en) * | 1997-02-20 | 1998-09-08 | Kukil Co Ltd | Production of gasket |
| JP2001227482A (en) * | 2000-02-18 | 2001-08-24 | Fujitsu General Ltd | Sealing structure for scroll type compressor |
| EP1507107A1 (en) * | 2003-08-15 | 2005-02-16 | Carl Freudenberg KG | Butterfly valve with sealing packing |
| CN101625026A (en) * | 2008-07-08 | 2010-01-13 | 环球油田机械公司 | Resilient high pressure metal-to-metal seal and method |
| US20110266755A1 (en) * | 2008-03-28 | 2011-11-03 | Corrosion Control Corporation D/B/A Pikotek | Isolation gasket, system and method of manufacture |
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2013
- 2013-11-14 CN CN201310566115.2A patent/CN103591290B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB249614A (en) * | 1925-01-01 | 1926-04-01 | Berkel & Parnall Mach Mfg Co | Improvements in sharpening devices for slicing machines |
| JPH10237424A (en) * | 1997-02-20 | 1998-09-08 | Kukil Co Ltd | Production of gasket |
| JP2001227482A (en) * | 2000-02-18 | 2001-08-24 | Fujitsu General Ltd | Sealing structure for scroll type compressor |
| EP1507107A1 (en) * | 2003-08-15 | 2005-02-16 | Carl Freudenberg KG | Butterfly valve with sealing packing |
| US20110266755A1 (en) * | 2008-03-28 | 2011-11-03 | Corrosion Control Corporation D/B/A Pikotek | Isolation gasket, system and method of manufacture |
| CN101625026A (en) * | 2008-07-08 | 2010-01-13 | 环球油田机械公司 | Resilient high pressure metal-to-metal seal and method |
Non-Patent Citations (1)
| Title |
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| 周美珍等: "大直径透镜式金属密封圈研究", 《机械设计与制造》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104147826A (en) * | 2014-08-19 | 2014-11-19 | 佛山市金凯地过滤设备有限公司 | High sealing feeding device of filter press |
| CN110500406A (en) * | 2019-06-27 | 2019-11-26 | 北京七星华创流量计有限公司 | Sealing structure and mass flow controller |
| CN113719252A (en) * | 2021-08-28 | 2021-11-30 | 中海石油(中国)有限公司湛江分公司 | Underwater well head connector combined type metal sealing ring |
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| CN103591290B (en) | 2015-11-18 |
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Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: Offshore Oil Engineering Co., Ltd. Patentee after: China Offshore Oil Group Co., Ltd. Co-patentee after: Harbin Engineering Univ. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: Offshore Oil Engineering Co., Ltd. Patentee before: China National Offshore Oil Corporation Co-patentee before: Harbin Engineering Univ. |
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