CN108825781A - A kind of dual spherical surface metal o-ring of dismountable H-type and flange arrangement - Google Patents
A kind of dual spherical surface metal o-ring of dismountable H-type and flange arrangement Download PDFInfo
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- CN108825781A CN108825781A CN201810510946.0A CN201810510946A CN108825781A CN 108825781 A CN108825781 A CN 108825781A CN 201810510946 A CN201810510946 A CN 201810510946A CN 108825781 A CN108825781 A CN 108825781A
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- spherical surface
- sealing
- ring
- type
- dual
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
Abstract
The present invention provides a kind of dual spherical surface metal o-ring of dismountable H-type and flange arrangement, including four metallic spheric surfaces, connection floor and rotatably positions overlap；Four metallic spheric surfaces are opposite two-by-two, are symmetrically distributed in the two sides up and down of connection floor, constitute the dual spherical surface metal o-ring of H-type；Rotary positioning overlap is located on the outside of the dual spherical surface metal o-ring of H-type.The present invention can be dismantled and be replaced to it in remote operation unmanned submersible ROV, without by damaged sealing ring and deep water equipment be recycled on ship or it is land operate, a large amount of time and funds can be saved；The dual spherical surface metal sealing of H-type can make the sealing ring in the contact process with flange, by disposably pre-tightening while realizing primary seal and secondary sealing, improve the precision of docking, dual-seal is able to bear the high/low temperature circulation and the effect of external applied load of underwater oil gas medium, guarantee the performance of underwater sealing, improves deep water Engineering Reliability.
Description
Technical field
The present invention relates to a kind of sealing structure more particularly to a kind of dual spherical surface metal o-ring of dismountable H-type and methods
Blue structure.
Background technique
In the application of ocean engineering field, deep water armament-related work bad environments are inside and outside to be carried by high pressure and high and low temperature alternative
Lotus effect, has higher requirement to sealing performance.Deep water sealing belongs to high pressure sealing technology, and high pressure sealing is in petrochemical industry row
Using relatively extensively in industry, structure is complicated, manufacture difficulty is big.
The performance acted on according to sealing by internal pressure is different, and high pressure sealing is divided into three kinds of structures：Forced sealing structure, half are certainly
Compact form sealing structure and self-fastening sealing structure.Forced sealing mainly has flat gasket, seal with metal lens ring and Cachaly seal
Three kinds of forms；Half self-energized seal mainly has biconical ring seal, octagonalring closure and oval ring sealing；Self-energized seal mainly has
The sealing of " C " shape ring, "O" ring sealing and delta gasket closure three types.These sealing means in only one ipsilateral sealing surface,
If pressure instability or the non-uniform situation of external load function, flange occurs cannot compress sealing surface completely, then leakage is easy to produce.
In addition, this sealing ring can seal ipsilateral generation at present using more there are also the sealing ring of metal and rubber combined type
Two sealing surfaces can preferably resist the variation of interior external applied load, but rubber easily generates aging under high/low temperature ringing,
Existing metal and rubber composite seal ring is set to fail.Simultaneously as the service life of underwater production facility is generally 20-
30 years, the sealing structure link needs most weak as connecting portion were replaced before its failure, common ring structure
It can not be replaced by remotely pilotless submersible (ROV, Remotely Operated Vehicle) in deep water, be not enough to adapt to
Deepwater work.Therefore, it is necessary to design novel double sealing structure dismountable under water.
Summary of the invention
The purpose of the invention is to provide a kind of dual spherical surface metal o-ring of dismountable H-type and flange arrangement, it is
A kind of dual ball face sealing circle of H-type that can be dismantled under water by ROV, the disposable primary seal realized between flange and pair are close
Envelope is able to bear high/low temperature circulation and external load function, guarantees sealing effect for a long time in deep water, extending underwater production facility makes
Use the service life；Meanwhile can directly be used under water by ROV operational instrument realize old sealing ring disassembly Yu Xinmi City's seal installation,
Reduce the time for being recycled to land maintenance and economic cost.
The object of the present invention is achieved like this：A kind of dual spherical surface metal o-ring of dismountable H-type, including by annular
Connection floor, be symmetricly set on connection floor up and down two sides two pairs of metallic spheric surfaces composition the dual spherical surface metal sealing of H-type
Circle body, each pair of metallic spheric surface include the secondary sealing spherical surface on the outside of connection floor and the primary seal ball on the inside of connection floor
Face and secondary sealing spherical surface is oppositely arranged with primary seal spherical surface, is symmetrical arranged that there are two the pressure test hole present invention on connection floor
It further include structure features some in this way：
1. it is symmetrical arranged on the dual spherical surface metal o-ring external surface of H-type there are three rotary positioning overlap, it is adjacent
Aerofoil profile groove is formed between two rotary positioning overlaps, the aerofoil profile groove is by the sky between two neighboring rotary positioning overlap
Gap and the annular notch composition that rotary positioning overlap end is set.
2. rotatably the upper surface and lower end surface of positioning overlap are inclined-planes.
3. a kind of flange arrangement for applying the dual spherical surface metal o-ring of dismountable H-type, including upper flange and lower flange,
Upper flange and lower flange are respectively arranged with the sealing structure with primary seal spherical surface and secondary sealing mating spherical surfaces, and upper flange inner surface is also
It is provided with the positioning mechanism with rotatably positioning overlap cooperation.
4. primary sealing area and secondary sealing area play sealing function, primary sealing area pair simultaneously when by uniform external force
Internal high-pressure oil gas is sealed, and secondary sealing area is sealed external high pressure sea water；When the effect by deflection external force
When, the primary sealing area and secondary sealing area of heteropleural play sealing function, while carrying out the sealing of high-pressure oil gas high pressure sea water.
Compared with prior art, the beneficial effects of the invention are as follows：The dual spherical surface metal of the detachable H-type that the present invention designs is close
Seal can be dismantled and be replaced to it in remote operation ROV, it is not necessary that damaged sealing ring and deep water equipment to be recycled on ship
Or it is land operated, a large amount of time and funds can be saved；The dual spherical surface metal sealing of H-type can make the sealing ring with method
In blue contact process, by disposably pre-tightening while realizing primary seal and secondary sealing, the precision of docking, dual-seal are improved
It is able to bear the high/low temperature circulation and the effect of external applied load of underwater oil gas medium, guarantees the performance of underwater sealing, improves deep water work
Journey reliability.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the dual spherical surface metal o-ring of the detachable H-type of the present invention.
Fig. 2 is the axial cut-away view of the dual spherical surface metal o-ring of the detachable H-type of the present invention.
Fig. 3 is the top view of the dual spherical surface metal o-ring of the detachable H-type of the present invention.
Fig. 4 is the side view of the dual spherical surface metal o-ring of the detachable H-type of the present invention.
Fig. 5 is the installation cut-away view of the dual spherical surface metal o-ring of the detachable H-type of the present invention.
Fig. 6 is the use state diagram of the dual spherical surface metal o-ring of the detachable H-type of the present invention.
Major Symbol explanation in figure：1 secondary sealing spherical surface, 1 ' secondary sealing spherical surface, 2 primary seal spherical surfaces, 2 ' primary seal spherical surfaces, 3
Pressure test hole, 3 ' pressure test holes, 4 connection floors, 5 rotary positioning overlaps, 5 ' rotatably position overlap, 5 " rotary fixed
Position overlap, 6 profiled slots, 6 ' profiled slots, 6 " profiled slots, 71 rotary positioning overlap lower surfaces, 72 rotary positioning fly
Side upper surface, the positioning mechanism in 8 upper flanges, the positioning mechanism in 8 ' upper flanges, the positioning mechanism in 8 " upper flanges, 9H type are double
Heavy ball face metal sealing circle body, 10 upper flanges, 11 lower flanges, the dual spherical surface metal o-ring of 12 detachable H-types, 13 upper flanges are close
Seal structure, 14 lower flange sealing structures.
Specific embodiment
Present invention is further described in detail with specific embodiment with reference to the accompanying drawing.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, the dual spherical surface metal o-ring of the detachable H-type of the present invention, including
Two primary seal spherical surfaces 2,2 ', two secondary sealing spherical surfaces 1,1 ', a connection floor 4 and three rotary positioning overlaps 5,
5',5"；The primary seal spherical surface 2,2 ' of the sealing ring and secondary sealing spherical surface 1,1 ' Relative distribution are in connecting up and down the two of floor 4
Side constitutes the dual spherical surface metal o-ring of H-type；Rotary positioning overlap 5,5 ', 5 " is located at outside the dual spherical surface metal o-ring of H-type
Side.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, the dual spherical surface metal o-ring of the detachable H-type of the present invention, wherein：
The sealing surface of the dual spherical surface metal o-ring is made of primary seal spherical surface 2,2 ' and secondary sealing spherical surface 1,1 ' two parts, is connected
Two metallic spheric surfaces of the inside of floor 4 are primary sealing areas 2,2 ', two metallic spheric surfaces in 4 outside of connection floor be secondary sealing area 1,
1'.Cooperate between the dual spherical surface metal o-ring of the detachable H-type and flange 10,11 sealing major and minor sealing surface 2,2 ', 1,
1 ', it can disposably realize and be sealed with the Dual-contack of sealing surface inside and outside flange 10,11, the sealing surface of the shape and flange 10,11
Shape matches.Rotary positioning overlap 5,5 ', 5 ", the rotation are machined on dual 9 outer wall of spherical surface metal sealing circle body of H-type
Rotatable positioning overlap 5,5 ', 5 ", by three identical structure compositions, is on the dual 9 outer wall circumference of spherical surface metal sealing circle body of H-type
120 ° are uniformly distributed, and have 30 ° of profiled slots 6,6 ', 6 " between each structure.The dual spherical surface metal sealing circle body 9 of H-type
The upper and lower surface 71,72 of rotary positioning overlap 5,5 ', 5 " be inclined-plane, which meets metal to metal sliding table
The self-locking performance requirement in face；Wherein rotatably the upper surface 72 of positioning overlap 5,5 ', 5 " for before rotational positioning positioning mechanism 8,
8 ', 8 " is adaptive mutually with the position of rotary positioning overlap 5,5 ', 5 ", and lower surface 71 is used for after rotational positioning and positioning mechanism
8, positioning is axially engaged between 8 ', 8 ".Dual 9 outer wall of spherical surface metal sealing circle body of H-type rotatably position overlap 5,5 ',
5 " profiled slot 6,6 ', 6 " be made of rectangle and dislocation annular, the groove skiving rotary positioning overlap 5,5 ', 5 ", just
Rotational positioning is realized between overlap and positioning mechanism 8,8 ', 8 ".Two sealing pressures are arranged symmetrically for 180 ° on the connection floor 4
Power instrument connection 3,3 ', the circulation for medium in pressure test after the completion of sealing acts.The dual spherical surface metal of H-type is close
Seal body 9 and rotary positioning overlap 5,5 ', 5 " are stainless steel integrated molding.
When the dual spherical surface metal o-ring of the detachable H-type of the present invention uses：Using using current potential and detachable H in the seawater
Upper flange 10 and lower flange 11 is made in metal material similar in dual 12 current potential of spherical surface metal o-ring of type, and flange hardness wants high
In sealing ring.The detachable dual spherical surface metal o-ring 12 of H-type, which is carried by upper flange 10 to designated position and lower flange 11, to carry out
Sealing；During the detachable dual installation to upper flange 10 of spherical surface metal o-ring 12 of H-type, first by rotatably positioning overlap
5, the contacts-side-down of 5 ', 5 " upper surface 72 and positioning mechanism 8,8 ', 8 ", another mistake hour hands rotate the dual spherical surface gold of detachable H-type
Belong to sealing ring 12, the lower surface 72 for rotatably positioning overlap 5,5 ', 5 " can be made to be threaded to the upside of positioning mechanism 8,8 ', 8 ", this
When remove external force, then the dual spherical surface metal o-ring 12 of detachable H-type will pass through gravity make rotatably to position overlap 5,5 ', 5 " with
It is contacted between positioning mechanism 8,8 ', 8 ", realizes location and installation.Finally, by the loading mechanism outside deep water equipment to upper flange
10 apply pretightning force with lower flange 11, and upper flange sealing structure 13, lower flange sealing structure 14 is made to compress the dual ball of detachable H-type
The primary seal spherical surface 2,2 ' and secondary sealing spherical surface 1,1 ' of face metal o-ring 12, make it generate juxtaposition metamorphose, reach metal sealing
Requirement.Finally, can pass through upward flange sealing structure 13, lower flange sealing structure 14 and major and minor close with land under water
The mode of the confined space injection high-pressure medium constituted between blocking face 2,2 ', 1,1 ', carries out pressure test, is protected by long-time
Pressure tests the sealing performance of the detachable dual spherical surface metal o-ring 12 of H-type.According to API 6A, pressure drop need to be less than current load pressure
10% (choosing lesser value in the two) i.e. provable sealing performance of 5% or rated pressure of power is intact.
The working principle and advantage of the dual spherical surface metal o-ring of the detachable H-type of the present invention：
The dual spherical surface metal sealing circle body 9 of 1.H type is sealed with flange 10,11 by sealing face contact, primary sealing area
2, the sealing structure 13 in secondary sealing area 1 and upper flange 10 is sealed cooperation, primary sealing area 2 ', secondary sealing area 1 ' and lower flange
11 sealing structure 14 is sealed cooperation；When deep water equip by uniform external force when, annular primary sealing area 2,2 ' and
Secondary sealing area 1,1 ' plays sealing function simultaneously, and primary sealing area 2,2 ' can be sealed internal high-pressure oil gas, secondary sealing
Face 1,1 ' can be sealed external high pressure sea water；When deep water equips the effect by deflection external force, the semi-ring of heteropleural
Primary sealing area 2,2 ' and secondary sealing area 1,1 ' play sealing function, while carrying out the sealing of high-pressure oil gas high pressure sea water, can support
Resist adverse effect of the uneven external force to sealing；Positioning mechanism 8,8 ', 8 ", detachable H-type dual ball are set inside upper flange 10
The matched positioning respectively of the rotary positioning overlap 5,5 ', 5 " of face metal o-ring 12, enables upper flange 10 and lower flange 11
The enough and sealing ring realizes axially position, and the sealing ring can be rotated by specific purpose tool, realizes the dual spherical surface of detachable H-type
Installation and replacement of the metal o-ring 12 in deep water.
2, in use, the dual spherical surface metal sealing circle body of H-type 9 sealed with upper flange 10, lower flange 11 primary sealing area 2,
2 ' and secondary sealing area 1,1 ' contact simultaneously, it is disposable to form primary seal and secondary sealing, improve leakage efficiency, save installation space.
3, the rotary positioning overlap 5,5 ', 5 " of the dual spherical surface metal o-ring 12 of detachable H-type can be with upper flange 10
The positioning mechanism 8,8 ', 8 " of interior setting matches, and keeps it rotary by rotating the detachable dual spherical surface metal o-ring 12 of H-type
The upper and lower surfaces 71 and 72 of positioning overlap are respectively completed the effect of contact and positioning, can be convenient the sealing ring and complete in deep water
Fast Installation, disassembly and replacement, operating efficiency are high.
Primary sealing area that 4, the dual spherical surface metal o-ring of detachable H-type 12 is sealed with upper flange 10, lower flange 11,
Secondary sealing area (2,1 and 2 ', 1 ') is symmetricly set on the two sides up and down of connection floor, can prevent the high-pressure oil gas inside deep water equipment
Leak out to device external.
5, when the dual spherical surface metal o-ring 12 of detachable H-type works, secondary sealing area 1,1 ' is by flange
Pretightning force is deformed when squeezing with primary sealing area 2,2 ' simultaneously, and external high pressure sea water can infiltrate into the dual spherical surface metal of H-type
When sealing the outside of circle body 9, secondary sealing area 1,1 ' can effectively stop seawater to the infiltration inside equipment.
6, the central part that the dual external side of spherical surface metal o-ring of H-type is arranged in overlap 5,5 ', 5 " is rotatably positioned, it can
With 8,8 ', 8 " quick-fit of positioning mechanism in upper flange, to realize the positioning of sealing ring, this this design structure is not needed
Separately plus telescopic locating element, facilitate operation and save space.
To sum up, the dual spherical surface metal o-ring of dismountable H-type of the invention, including four metallic spheric surfaces, connection floor
And rotatably position overlap；Four metallic spheric surfaces of the sealing ring are opposite two-by-two, are symmetrically distributed in the upper and lower of connection floor
Two sides constitute the dual spherical surface metal o-ring of H-type；Rotary positioning overlap is located on the outside of the dual spherical surface metal o-ring of H-type.Institute
The sealing surface for stating dual spherical surface metal o-ring is made of two parts, and two metallic spheric surfaces connected on the inside of floor are primary seals
Face, two metallic spheric surfaces connected on the outside of floor are secondary sealing areas.The dual spherical surface metal o-ring of the detachable H-type and flange
Between cooperate the major and minor sealing surface of sealing, can disposably realize and be sealed with the Dual-contack of sealing surface inside and outside flange, the shape with
The sealing surface shape of flange matches.Rotary positioning overlap is machined on the dual external wall of spherical surface metal o-ring of H-type,
The rotary positioning overlap, by three identical structure compositions, is uniformly distributed on the external wall circumference of metal o-ring in 120 °, and
There are 30 ° of profiled slots between each structure.The rotary positioning overlap upper and lower surface of the dual spherical surface metal sealing circle body of H-type
It is inclined-plane, which meets the self-locking performance requirement of metal to metal slidingsurface；Wherein rotatably position table on overlap
The mechanism position that face is used for before rotational positioning is adaptive mutually, and lower surface is used for the axial direction after rotational positioning between positioning mechanism
Cooperation positioning.The dual external wall of spherical surface metal o-ring of H-type rotatably positions overlap profiled slot, by rectangle and dislocation loop
Shape composition, the rotary positioning overlap of the groove skiving, convenient for realizing rotational positioning between overlap and positioning mechanism.The connection
Two sealed pressure instrument connections are arranged symmetrically for 180 ° on floor, the stream for medium in pressure test after the completion of sealing acts
It is logical.The dual spherical surface metal sealing circle body of H-type and rotary positioning overlap are stainless steel integrated molding.Of the invention is detachable
The dual spherical surface metal o-ring of H-type can be dismantled and be replaced to it in remote operation unmanned submersible ROV, without will be damaged
Sealing ring and deep water equipment be recycled on ship or it is land operated, a large amount of time and funds can be saved；The dual spherical surface gold of H-type
Belonging to sealing can make the sealing ring in the contact process with flange, by disposably pre-tightening while realizing that primary seal is close with pair
Envelope, improves the precision of docking, and dual-seal is able to bear the high/low temperature circulation and the effect of external applied load of underwater oil gas medium, protects
The performance of underwater sealing is demonstrate,proved, deep water Engineering Reliability is improved.
Claims (5)
1. a kind of dual spherical surface metal o-ring of dismountable H-type, it is characterised in that：Including the connection floor, symmetrical by annular
The dual spherical surface metal sealing circle body of H-type of two pairs of metallic spheric surfaces composition of connection floor or more two sides, each pair of metal ball are set
Face includes the secondary sealing spherical surface on the outside of connection floor and primary seal spherical surface and secondary sealing spherical surface on the inside of connection floor
It is oppositely arranged with primary seal spherical surface, arranged symmetrically on connection floor there are two pressure test holes.
2. a kind of dismountable dual spherical surface metal o-ring of H-type according to claim 1, it is characterised in that：It is double in H-type
It is symmetrical arranged on the metal o-ring external surface of heavy ball face and positions overlap, two neighboring rotary positioning overlap there are three rotary
Between form aerofoil profile groove, the aerofoil profile groove by between two neighboring rotary positioning overlap gap and setting rotatably fixed
The annular notch composition of position overlap end.
3. a kind of dismountable dual spherical surface metal o-ring of H-type according to claim 2, it is characterised in that：Rotatably
The upper surface and lower end surface for positioning overlap are inclined-planes.
4. a kind of flange arrangement using dismountable dual spherical surface metal o-ring of H-type as claimed in claim 3, feature exist
It is：Including upper flange and lower flange, upper flange and lower flange are respectively arranged with and primary seal spherical surface and secondary sealing mating spherical surfaces
Sealing structure, upper flange inner surface be additionally provided with rotatably positioning overlap cooperation positioning mechanism.
5. a kind of flange arrangement according to claim 4, it is characterised in that：When by uniform external force, primary seal
Face and secondary sealing area play sealing function simultaneously, and primary sealing area is sealed internal high-pressure oil gas, and secondary sealing area is to outside
High pressure sea water be sealed；When the effect by deflection external force, the primary sealing area and secondary sealing area of heteropleural play sealing and make
With, while carrying out the sealing of high-pressure oil gas high pressure sea water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810510946.0A CN108825781A (en) | 2018-05-25 | 2018-05-25 | A kind of dual spherical surface metal o-ring of dismountable H-type and flange arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810510946.0A CN108825781A (en) | 2018-05-25 | 2018-05-25 | A kind of dual spherical surface metal o-ring of dismountable H-type and flange arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108825781A true CN108825781A (en) | 2018-11-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810510946.0A Pending CN108825781A (en) | 2018-05-25 | 2018-05-25 | A kind of dual spherical surface metal o-ring of dismountable H-type and flange arrangement |
Country Status (1)
| Country | Link |
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| CN (1) | CN108825781A (en) |
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| CN112555424A (en) * | 2020-11-11 | 2021-03-26 | 杭州电子科技大学 | Large-size internal and external type double-track structure flexible sealing device and working method thereof |
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