CN208546740U - A kind of sealing device of high-pressure composite containers plastic inner container - Google Patents
A kind of sealing device of high-pressure composite containers plastic inner container Download PDFInfo
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- CN208546740U CN208546740U CN201820036229.4U CN201820036229U CN208546740U CN 208546740 U CN208546740 U CN 208546740U CN 201820036229 U CN201820036229 U CN 201820036229U CN 208546740 U CN208546740 U CN 208546740U
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- plastic inner
- inner lining
- sealing
- metal termination
- metal
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
- F17C1/005—Storage of gas or gaseous mixture at high pressure and at high density condition, e.g. in the single state phase
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/002—Details of vessels or of the filling or discharging of vessels for vessels under pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/05—Size
- F17C2201/056—Small (<1 m3)
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0602—Wall structures; Special features thereof
- F17C2203/0612—Wall structures
- F17C2203/0614—Single wall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0602—Wall structures; Special features thereof
- F17C2203/0612—Wall structures
- F17C2203/0614—Single wall
- F17C2203/0619—Single wall with two layers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0634—Materials for walls or layers thereof
- F17C2203/0658—Synthetics
- F17C2203/066—Plastics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/012—Hydrogen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
- F17C2223/035—High pressure (>10 bar)
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/03—Dealing with losses
- F17C2260/035—Dealing with losses of fluid
- F17C2260/036—Avoiding leaks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0165—Applications for fluid transport or storage on the road
- F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
- F17C2270/0178—Cars
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model relates to a kind of sealing devices of high-pressure composite containers plastic inner container, the sealing device includes the sealing gasket of composite layer, elastomer rubber sealing ring, bottle-jack valve and metal that the metal termination of aluminium alloy or stainless steel, the plastic inner lining of single-layer or multi-layer material, fiber and resin form, the metal termination is wrapped up by plastic inner lining, and reinforce connecting by strengthening part, two sealing rings are separately mounted on metal termination and plastic inner lining；Sealing gasket and metal termination, plastic inner lining squeeze sealing ring, and composite layer carries out wrapping up sealing gasket, plastic inner lining by way of winding, and bottle-jack valve is attached with metal termination by metal threaded, ultimately form sealing structure.Connect more reliable for guarantee metal termination and plastic inner lining, in plastic inner lining molding, be embedded in metal termination, by metal termination the features such as hole, slot, ripple both to be reliably connected.
Description
Technical field
The present invention relates to a kind of sealing devices, and in particular to a kind of sealing device of high-pressure composite containers plastic inner container belongs to
In Oiltank structure component technology field.
Background technique
Most of taxi repacking compressed natural gas (CNG) to be instead of the operating pressure of fuel oil, general CNG high pressure gas cylinder
20MPa；Some vehicles producer has promoted CNG or the CNG vehicle mixed with fuel oil, such as Audi, general.Using hydrogen
Fuel cell car is also current hot spot, and the operating pressure of hydrogen storage high pressure gas cylinder is generally 35MPa, 70MPa, and 70MPa
IV type bottle (high-pressure plastic liner clad vessel) is current research and development focus.In addition to automobile-used, high pressure gas cylinder is also obtained in other field
Partial liquefaction oil gas to sufficient application, such as Europe uses plastic inner lining clad vessel (operating pressure 2MPa).Largely
High-pressure bottle be used widely in daily life, that there are weight is bigger than normal for traditional pure metal or metal inner lining clad vessel
The problem of, it is not easy to transport；And storage pressure is higher, metal liner production technology is more complicated, and cost is higher, and there is also by high pressure gas
The risk of body corrosion.In order to meet light-weighted requirement, high-pressure plastic liner clad vessel is generated, should because of the characteristic of plastics
Class product has the superior functions such as corrosion-resistant, endurance, and main production firm is Toyota, Hexagon (Norway), Quantum (beauty
State) etc..Relative to pure metal or metal inner lining clad vessel, the guarantee of the leakproofness of high-pressure plastic liner clad vessel is more severe
It carves, main cause is that plastic inner lining is different from the material of metal termination, in use process repeatedly, plastic inner lining and metal end
Head connection can loosen, sealing performance decline.
In view of status, the hot spot and difficult point of metal termination and plastic inner lining connected into for research.Fig. 1 show one
High-pressure plastic liner clad vessel, metal termination 1 are mounted on plastic inner lining 2, are twined later by fiber composite layer 3
Around being wrapped to form.Fig. 2 is illustrated the sealing structure of end face: metal termination 1 and the big face contact of plastic inner lining are in technique
It is infeasible, even if feasible cost is also high；The structure does not consider the limit on metal termination 1 and 2 axis of plastic inner lining
Position；The structure does not consider the internal pressure changing pressurising of plastic inner lining when winding, will lead to metal termination 1 and plastic inner lining connects
The place of connecing generates gap and causes to leak；The structure does not consider limit when bottleneck bears installation torque, and metal termination 1 is caused after installation
It is reduced with the bond strength of composite layer 3；The escape paths P of compressed gas is shorter in the structure, will increase compressed gas escape
Risk, especially micro-molecular gas hydrogen, helium；Therefore, a kind of new scheme of urgent need solves the technical problem.
Summary of the invention
The present invention exactly for the technical problems in the prior art, provides a kind of high-pressure composite containers plastic inner container
Sealing device, the Technical Design is ingenious, compact-sized, to guarantee that metal termination and plastic inner lining connect more may be used
Lean on, in plastic inner lining molding, be embedded in metal termination, by metal termination the features such as hole, slot, ripple both make it is reliable
Connection, while ripple struction can inhibit the escape of compressed gas to a certain extent；For the escape for reducing compressed gas, increase
The path P of hydrogen escape；The connection of metal termination, plastic inner lining, bottle-jack valve is comprehensively considered, use sealing ring few as far as possible is realized
The sealing of assembly.
To achieve the goals above, technical scheme is as follows, a kind of sealing of high-pressure composite containers plastic inner container
Device, the sealing device is by the metal termination of aluminium alloy or stainless steel, plastic inner lining, fiber and the tree of single-layer or multi-layer material
The sealing gasket composition for composite layer, elastomer rubber sealing ring, bottle-jack valve and the metal that rouge forms, the metal termination are moulded
Expect liner package, and reinforce connecting by strengthening part, two sealing rings are separately mounted on metal termination and plastic inner lining；It is close
Envelope liner squeezes mounted sealing ring with metal termination, plastic inner lining, and composite layer is carried out by way of winding to sealing lining
Pad, plastic inner lining are wrapped up, and bottle-jack valve is attached with metal termination by metal threaded, ultimately form sealing structure.
As an improvement of the present invention, the strengthening part be the hole being arranged in metal termination, slot, ripple struction,
One or more of polymorphic structure strengthening part.
As an improvement of the present invention, the metal termination includes flat segments end i.e. position of bottleneck and segmental arc end
That is end socket position, the thickness of the segmental arc end from inside to outside is gradually thinning, and the hole, slot are arranged in segmental arc end, wave
Line structure setting is in flat segments end.
As an improvement of the present invention, pore size distribution is in segmental arc end outermost, the relatively thin position of wall thickness, the axial direction in hole
It is vertical as far as possible with binding face.In forming process, molten plastic through hole is squeezed through smallest cross-sectional and forms back-off structure, in order to full
Foot has enough material that can be pressed against；And form back-off structure.Consider equal diameter aperture simultaneously, then for the section (normal direction in section
It is parallel with the normal direction of binding face) initially contact expect the opening 11a of embryo, the area of smallest cross-sectional 11b, 11c meets following condition.
The sectional area of Min (sectional area of 11a, the sectional area of 11c) >=11b；
The pore structure is not limited to the structure in schematic diagram, and is limited to all scenario that above-mentioned formula is likely to occur.
As an improvement of the present invention, the slot is distributed in the thicker position in segmental arc end, and the slot is set as
Import is small, internal big structure, and in forming process, molten plastic passes through slot and forms back-off.In the program, in order to guarantee that material can squeeze
Back-off is formed into slot, import is small, internal big, and main feed direction is set parallel as far as possible with binding face normal direction；In order to guarantee to be vented, if
Count through-hole.
As an improvement of the present invention, the ripple struction is distributed in flat segments end i.e. position of bottleneck, forming process
In, plastic inner lining forms circumferential position limiting sealed ripple after blow molding, and each ripple section joins end to end after being rotated by 360 °, joins end to end
Ripple along bottleneck axial position carry out array.For the bonding strength for enhancing bottle mouth position metal termination and plastic inner lining, increase
The leakage path of compressed gas, using ripple struction, plastic inner lining forms feature to metal termination after blow-moulding.The single ripple is cut
Face structure is not limited to rectangle, isosceles trapezoid, is limited to join end to end after each section is rotated by 360 °, end to end ripple is along bottleneck
Axial position carry out array.
As an improvement of the present invention, the polymorphic structure is distributed in flat segments end i.e. position of bottleneck.To guarantee bottle
Mouth position is able to bear big torque.Having special-shaped geometrical characteristic 14a in metal termination prevents radial rotating, in order to guarantee to seal
The installation of circle may have other features, such as pre-installation slot on special-shaped geometrical characteristic.
A kind of sealing device of high-pressure composite containers plastic inner container, the sealing structure is by aluminium alloy or the metal of stainless steel
Composite layer, elastomer rubber sealing ring and the bottleneck that end, the plastic inner lining of single-layer or multi-layer material, fiber and resin form
Valve group is at the metal termination is wrapped up by plastic inner lining, and reinforces connecting by strengthening part, and through hole, slot, ripple etc. add
Strong ties, composite layer carry out wrapping up plastic inner lining by way of winding, in sealing ring pre-installation and plastic inner lining, gold
Belong to end, the mounted sealing ring of plastic inner lining extruding, bottle-jack valve is attached by metal threaded with metal termination, is formed close
Envelope.The program is connected using external screw thread, and sealing occurs that 1 sealing ring can be saved on plastic inner lining and metal termination,
Sealing gasket is eliminated simultaneously.
A kind of sealing device of high-pressure composite containers plastic inner container, the sealing structure is by aluminium alloy or the metal of stainless steel
Composite layer, elastomer rubber sealing ring and the bottle-jack valve that end, the plastic inner lining with sealing characteristics, fiber and resin form
Composition, metal termination are reinforced connecting by plastic inner lining by strengthening part, and composite layer is carried out by way of winding in plastics
Lining is wrapped up, and for sealing ring pre-installation on plastic inner lining, metal termination, plastic inner lining squeeze mounted sealing ring, bottleneck
Valve is attached with metal termination by metal threaded, and sealing is formed.
As an improvement of the present invention, the strengthening part be the hole being arranged in metal termination, slot, ripple struction,
One of card slot, slotted hole structure are several, and the card slot circumferential direction is arranged in position of bottleneck, in blow molding, pass through material extrusion
Mode is attached card slot with plastic inner lining；The slotted hole structure is circumferentially disposed in position of bottleneck, in blow molding, by squeezing
The mode of material enters slotted hole structure.The program uses another connection structure in position of bottleneck, is guaranteed by card slot
The ability for bearing torque realizes that the connection of metal termination and plastic inner lining guarantees to seal by slotted hole structure.The card slot of the program,
It is circumferentially disposed.In blow molding, by way of material extrusion card slot is attached with plastic inner lining, it in the conceived case, can
To form card slot features in metal termination, so that position of bottleneck connects more reliable.Slotted hole structure in the program, should
Structure is circumferentially disposed.In blow molding, enter slotted hole structure along dotted line material extrusion direction.The structure shape
At radial limitation connection, bonding strength, enhancing sealing are improved.
Compared with the existing technology, the invention has the advantages that, 1) the technical solution overall construction design is compact, ingenious,
The program has comprehensively considered the connection of metal termination, plastic inner lining, bottle-jack valve, and design has the metal end in hole, slot in the program
Head realizes the connection of plastic inner lining and metal end face in plastic inner lining molding, increases the path that compressed gas is escaped；2) should
Ripple glaze that scheme is connected using multiple first and last, closure, enhances bottleneck bonding strength, while compressed gas being inhibited to escape；3)
The program increases polymorphic structure, hole, slot, the bonding strength and sealing of reinforced plastics liner and metal termination in position of bottleneck；4)
The program comprehensively considers the assembly of bottle-jack valve, realizes the closed of whole system, and the use for reducing sealing ring reduces cost, improves system
System reliability.
Detailed description of the invention
Fig. 1 is that the prior art compresses container schematic diagram；
Fig. 2 is prior art sealed structural schematic diagram；
Fig. 3 is 1 structural schematic diagram of embodiment；
Fig. 4 metal termination structural schematic diagram；
Fig. 5 is the structural schematic diagram in hole；
Fig. 6 is the structural schematic diagram of slot；
Fig. 7 is ripple struction schematic diagram；
Fig. 8 is bottleneck polymorphic structure schematic diagram；
Fig. 9 is 2 structural schematic diagram of embodiment；
Figure 10 is 3 structural schematic diagram of embodiment；
Figure 11 is notch schematic diagram；
Figure 12 is slotted hole structure schematic diagram.
In figure: 1, metal termination, 2, plastic inner lining, 3, composite layer, 4, sealing ring, 5, bottle-jack valve, 6, sealing gasket, 10,
Sealing structure, 11, hole, 12, slot, 12a, import, 12b, through-hole, 13, ripple struction, 14, polymorphic structure, 15, flange are 15a, close
Seal mounting groove, 16, card slot, 16a, card slot profile, 16b, card slot profile, 17, slotted hole structure, 21, back-off structure, 22, back-off,
23, circumferential position limiting sealed ripple 26 buckles, 27 buckle, 28 sealing ring mounting grooves.
Specific embodiment:
In order to deepen the understanding of the present invention, the present embodiment is described in detail with reference to the accompanying drawing.
Embodiment 1: referring to Fig. 3, a kind of sealing device of high-pressure composite containers plastic inner container, the sealing device is closed by aluminium
Composite layer 3, the elasticity of gold or the metal termination 1 of stainless steel, the plastic inner lining 2 of single-layer or multi-layer material, fiber and resin composition
The sealing gasket 6 of body rubber sealing ring 4, bottle-jack valve 5 and metal forms, and the metal termination 1 is wrapped up by plastic inner lining 2, and
Reinforce connecting by strengthening part, 2 sealing rings 4 are separately mounted on metal termination 1 and plastic inner lining 2；Sealing gasket 6 and gold
Category end 1, plastic inner lining 2 squeeze mounted sealing ring 4, and composite layer 3 is carried out by way of winding to sealing gasket 6, modeling
Material liner 2 is wrapped up, and bottle-jack valve 5 is attached with metal termination 1 by metal threaded, ultimately forms sealing structure, institute
Stating strengthening part is one or more of the hole 11 being arranged in metal termination, slot 12, ripple struction 13, polymorphic structure 14
Strengthening part.Compressed gas leakage path P is most likely to happen in the binding face along metal termination 1 and plastic inner lining 2.Fig. 1 institute
The design shown increases the path of gas escape significantly.The structure uses 2 sealing rings, sealing ring 4 above prevent gas from
Sealing gasket 5 and the gap of metal termination are run out of, and sealing ring below prevents gas between sealing gasket 5 and metal termination 1
Gap is run out of via composite layer again.
The distribution for introducing metal termination 14 foundation characteristics as shown in Figure 4, says on the whole, all feature cyclization to point
Cloth；Hole slot is distributed in end socket position (arc section), and opening direction is consistent with binding face normal direction as far as possible；Corrugation patterns, special-shaped geometry
Feature distribution is in position of bottleneck.
Further, as shown in figure 5, the metal termination include flat segments end i.e. position of bottleneck and segmental arc end i.e.
End socket position, the thickness of the segmental arc end from inside to outside is gradually thinning, and the hole 11, slot 12 are arranged in segmental arc end,
Ripple struction 13, polymorphic structure 14 are arranged in flat segments end, and hole 11 is distributed in segmental arc end outermost, the relatively thin position of wall thickness
It sets, the axial direction in hole is vertical as far as possible with binding face.In forming process, molten plastic through hole 11 be pressed against smallest cross-sectional 11b and
Back-off structure 21 is formed, there are enough material that can be pressed against 11b to meet；And form back-off structure 21.Equal diameter is considered simultaneously
Aperture, then it is (minimum for section (normal direction in section and the normal direction of binding face are parallel) 11a (initially contacting the opening of material embryo), 11b
Section), the area of 11c meet following condition.
The sectional area of Min (sectional area of 11a, the sectional area of 11c) >=11b；
The pore structure is not limited to the structure in schematic diagram, and is limited to all scenario that above-mentioned formula is likely to occur.
Further, as shown in fig. 6, the slot 12 is distributed in the thicker position in segmental arc end, the slot is set as
Import is small, internal big structure, and in forming process, molten plastic forms back-off 22 by slot 12.In the program, in order to guarantee to expect energy
It is expressed in slot 12 and forms back-off 22, import 12a is small, internal big, and main feed direction is set parallel as far as possible with binding face normal direction；In order to
Guarantee exhaust, designs porosity characteristics 12b.
Further, as shown in fig. 7, the ripple struction is distributed in flat segments end i.e. position of bottleneck, in forming process,
Plastic inner lining 2 forms circumferential position limiting sealed ripple 23,23' after blow molding, and each ripple section joins end to end after being rotated by 360 °, head and the tail
Connected ripple carries out array along the axial position of bottleneck.It is strong for enhancing bottle mouth position metal termination 1 and the connection of plastic inner lining 2
Degree increases the leakage path of compressed gas, and using ripple struction 13,13 ', plastic inner lining 2 forms spy to metal termination 1 after blow-moulding
Levy 23,23'.The single ripple cross section structure is not limited to that rectangle (13a length be equal to 13b length), (13a ' length is big for isosceles trapezoid
In 13b ' length), it is limited to join end to end after each section is rotated by 360 °, end to end ripple is carried out along the axial position of bottleneck
Array.
Further, as shown in figure 8, the polymorphic structure 14 is distributed in flat segments end i.e. position of bottleneck, to guarantee bottle
Mouth position is able to bear big torque.Having special-shaped geometrical characteristic 14a in metal termination 1 prevents radial rotating, and this feature is unlimited
In schematic diagram shown in figure.In order to guarantee the installation of sealing ring, there may be other features on special-shaped geometrical characteristic, such as
Pre-install slot 15.The program considers the assembly of bottle-jack valve, arranges sealing ring on the whole, it is possible to reduce sealing ring dosage.?
Plastic inner lining is connect with metal inner lining at the time of molding, by it, and the structures such as through hole, slot, ripple squeeze into plastics in metal termination
Bonding strength is improved, process is reduced, reduces the requirement such as high-pressure bottle structure and size, performance, technique, reduces exploitation manufacture
Cost.The path of compressed gas escape is increased in structure, and is sealed on escape paths using sealing ring, the row of being effectively reduced
It puts, improves the security performance of product.
Embodiment 2: referring to Fig. 9, a kind of sealing device of high-pressure composite containers plastic inner container, the sealing structure is closed by aluminium
Composite layer 3, the elasticity of gold or the metal termination 1 of stainless steel, the plastic inner lining 2 of single-layer or multi-layer material, fiber and resin composition
Body rubber sealing ring 4 and bottle-jack valve 5 form, and the metal termination 1 is wrapped up by plastic inner lining 2, and are reinforced by strengthening part
Connection, composite layer 3 carry out wrapping up plastic inner lining 2 by way of winding, in the pre-installation of sealing ring 4 and plastic inner lining 2,
Metal termination 1, plastic inner lining 2 squeeze mounted sealing ring 4, and bottle-jack valve 5 is connected with metal termination 1 by metal threaded
It connects, forms sealing.Sealing structure 10 as shown in Figure 9, relative to embodiment 1, the program is connected using external screw thread, close
Seal is raw on plastic inner lining and metal termination, can save 1 sealing ring 4, while eliminating sealing gasket 6.In the program
The strengthening part is set as one of structures such as hole, slot, ripple or a variety of, wherein chatting about the characteristics of hole, slot, ripple
State same embodiment 1.
Embodiment 3: referring to Figure 10, a kind of sealing device of high-pressure composite containers plastic inner container, the sealing structure is by aluminium
Composite layer 3, the elasticity of the metal termination 1 of alloy or stainless steel, the plastic inner lining 2 with sealing characteristics, fiber and resin composition
Body rubber sealing ring 4 and bottle-jack valve 5 form, and metal termination 1 is reinforced connecting by plastic inner lining 2 by strengthening part；Composite layer 3
It carries out wrapping up plastic inner lining 2 by way of winding, the pre-installation of sealing ring 4 on plastic inner lining 2, mould by metal termination 1
Material liner 2 squeezes mounted sealing ring 4, and bottle-jack valve 5 is attached with metal termination 1 by metal threaded, forms sealing, institute
Stating strengthening part is one of the hole being arranged in metal termination, slot, ripple struction, card slot, slotted hole structure or several, institute
It is circumferentially disposed in position of bottleneck to state card slot 16, in blow molding, connects card slot 16 with plastic inner lining 2
It connects；The slotted hole structure is circumferentially disposed to make slotted hole structure 17 along dotted line in blow molding in position of bottleneck by way of material extrusion
Direction 17a enters.Sealing structure as shown in Figure 10 for embodiment 2, is used another in position of bottleneck relative to embodiment 1
A kind of outer connection structure, guarantees the ability for bearing torque by card slot 16, realizes metal termination 1 and plastics by slotted hole structure 17
The connection of liner 2 guarantees sealing.Card slot 16 shown in Figure 11, it is circumferentially disposed.In blow molding, card slot is made by way of material extrusion
16 are attached with plastic inner lining 2, in the conceived case, feature 16a, 16b can be formed in metal termination 1, so that bottle
Mouth position connects more reliable.Slotted hole structure as shown in figure 12, the structure be it is circumferentially disposed, blow molding when, pass through material extrusion
Mode make slotted hole structure 17 along dotted line direction 17a enter.The structure forms radial limitation connection, and it is strong to improve connection
Degree, enhancing sealing.
Strengthening part described in the program is set as one of structures such as hole, slot, ripple or a variety of, wherein about
The characteristics of hole, slot, ripple, describes with embodiment 1.
In above scheme, metal termination is placed on mold or other supporting elements, mould by plastic inner lining in blow molding
When tool closure, molten plastic wraps up metal termination, and partial melting plastics are squeezed hole, the slot etc. of inlet side head, realize connection.To guarantee
The consistency of stress, hole, slot are circumferential symmetrical.In integral arrangement, proximal edge is leaned in hole, and slot is arranged in metal termination thickness ratio
Biggish place.
Hole has 2 kinds: a kind of metal termination and liner binding face (hreinafter referred to as binding face) are reference, opening direction with
Binding face normal direction is parallel as far as possible, conducive to squeezing into for material；Bore dia from large to small, to after certain thickness, then becomes larger, conducive to that can be formed
Back-off structure；Another equal diameter through-hole is generally used for cannot achieve a kind of position in front, such as weak area or row on side
Stomata.
The feature of slot is as follows: binding face is as reference, and the normal direction of channel opening and the normal direction of binding face are parallel as far as possible, open-mouth ruler
The very little inside that is less than is conducive to molten plastic and is formed back-off structure by etched-off area size；In order to guarantee the consolidation of filling plastic in slot
Degree can open aperture for being vented on slot.
There is the ripple glaze (generally in position of bottleneck) being connected between metal termination and plastic inner lining, the staggered structure of canine tooth is advantageous
In the intensity of faying face, the path of compressed gas leakage is effectively increased.The section of single ripple glaze can for rectangle, it is trapezoidal, three
It is angular etc..Have between ripple glaze in bottleneck axial position array, spacing considers metal termination difficulty of processing and plastics extrusion forming
Technique.
Sealing ring is disposed in the leakage path of compressed gas, obstructs the gas revealed from liner, is eliminated because of size public affairs
Gap caused by difference devises different schemes for different connections.
In actual application process, because the difference of the medium of storage, pressure, not necessarily all measure require to use.
It should be noted that above-described embodiment, is not intended to limit the scope of protection of the present invention, in above-mentioned technical proposal
On the basis of made equivalents or substitution each fall within the range that the claims in the present invention are protected.
Claims (9)
1. a kind of sealing device of high-pressure composite containers plastic inner container, which is characterized in that the sealing device is by aluminium alloy or not
Composite layer, the elastomer rubber sealing of the rust metal termination of steel, the plastic inner lining of single-layer or multi-layer material, fiber and resin composition
The sealing gasket composition of circle, bottle-jack valve and metal, the metal termination is wrapped up by plastic inner lining, and is reinforced by strengthening part
Connection, two sealing rings are separately mounted on metal termination and plastic inner lining；Sealing gasket and metal termination, plastic inner lining squeeze
Sealing ring, composite layer carry out wrapping up sealing gasket, plastic inner lining by way of winding, and bottle-jack valve and metal termination are logical
Cross it is metal threaded be attached, ultimately form sealing structure.
2. the sealing device of high-pressure composite containers plastic inner container according to claim 1, which is characterized in that the reinforcement part
Part is one or more of the hole being arranged in metal termination, slot, ripple struction strengthening part.
3. the sealing device of high-pressure composite containers plastic inner container according to claim 2, which is characterized in that the metal end
Head includes flat segments and segmental arc, and the thickness of the segmental arc end from inside to outside is gradually thinning, and the hole, slot are arranged in arc
Duan Duantou, ripple struction are arranged in flat segments end.
4. the sealing device of high-pressure composite containers plastic inner container according to claim 2, which is characterized in that the hole (11)
It is distributed in segmental arc end outermost, the relatively thin position of wall thickness, the axial direction in hole is vertical as far as possible with binding face, in forming process, melts
Melt plastics through hole (11) to be pressed against smallest cross-sectional (11b) and formed back-off structure (21).
5. the sealing device of high-pressure composite containers plastic inner container according to claim 2, which is characterized in that the slot (12)
It is distributed in the thicker position in segmental arc end, the slot is set as that import is small, internal big structure, in forming process, melting modeling
Material forms back-off (22) by slot (12).
6. the sealing device of high-pressure composite containers plastic inner container according to claim 2, which is characterized in that the ripple knot
Structure is distributed in flat segments end i.e. position of bottleneck, and in forming process, plastic inner lining (2) forms circumferential position limiting sealed ripple after blow molding
(23,23')。
7. a kind of sealing device of high-pressure composite containers plastic inner container, which is characterized in that the sealing device is by aluminium alloy or not
Composite layer, the elastomer rubber sealing of the rust metal termination of steel, the plastic inner lining of single-layer or multi-layer material, fiber and resin composition
Circle and bottle-jack valve composition, the metal termination are wrapped up by plastic inner lining, and reinforce connecting by strengthening part, and composite layer passes through
The mode of winding wrap up plastic inner lining, and on plastic inner lining, metal termination, plastic inner lining squeeze sealing ring pre-installation
Pressure seal ring, bottle-jack valve are attached with metal termination by metal threaded, and sealing is formed.
8. a kind of sealing device of high-pressure composite containers plastic inner container, which is characterized in that the sealing device is by aluminium alloy or not
Composite layer, the elastomer rubber sealing ring that metal termination, the plastic inner lining with sealing characteristics, fiber and the resin of rust steel form
And bottle-jack valve composition, metal termination by plastic inner lining by strengthening part reinforce connection, composite layer by way of winding into
Row wraps up plastic inner lining, and for sealing ring pre-installation on plastic inner lining, metal termination, plastic inner lining squeeze sealing ring, bottle
Mouth valve is attached with metal termination by metal threaded, and sealing is formed.
9. the sealing device of high-pressure composite containers plastic inner container according to claim 8, which is characterized in that the reinforcement part
Part is one of the hole being arranged in metal termination, slot, ripple struction, card slot, slotted hole structure or several, the bayonet slot ring
To position of bottleneck is arranged in, in blow molding, by way of material extrusion card slot is attached with plastic inner lining；The slot knot
Structure is circumferentially disposed to enter slotted hole structure by way of material extrusion in blow molding in position of bottleneck.
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| CN201711494392 | 2017-12-31 | ||
| CN2017114943921 | 2017-12-31 |
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| CN201810021202.2A Active CN108131554B (en) | 2017-12-31 | 2018-01-10 | Sealing device for plastic liner of high-pressure composite container |
| CN201820036229.4U Active CN208546740U (en) | 2017-12-31 | 2018-01-10 | A kind of sealing device of high-pressure composite containers plastic inner container |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108131554A (en) * | 2017-12-31 | 2018-06-08 | 亚普汽车部件股份有限公司 | A kind of sealing device of high-pressure composite containers plastic inner container |
| WO2022042668A1 (en) * | 2020-08-28 | 2022-03-03 | 亚普汽车部件股份有限公司 | High-pressure composite container |
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| CN111963891B (en) * | 2020-08-28 | 2022-07-12 | 亚普汽车部件股份有限公司 | Plastic inner container of high-pressure composite container |
| CN111963892B (en) * | 2020-08-28 | 2022-07-12 | 亚普汽车部件股份有限公司 | Sealing structure of plastic liner high-pressure composite container |
| CN117307945B (en) * | 2023-11-28 | 2024-03-08 | 安顺集团建设有限公司 | Pressure vessel for storing natural gas |
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| CN108131554A (en) * | 2017-12-31 | 2018-06-08 | 亚普汽车部件股份有限公司 | A kind of sealing device of high-pressure composite containers plastic inner container |
| WO2022042668A1 (en) * | 2020-08-28 | 2022-03-03 | 亚普汽车部件股份有限公司 | High-pressure composite container |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108131554B (en) | 2023-06-30 |
| CN108131554A (en) | 2018-06-08 |
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