CN208090298U - A kind of high-pressure composite containers plastic inner container seal assembly - Google Patents
A kind of high-pressure composite containers plastic inner container seal assembly Download PDFInfo
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- CN208090298U CN208090298U CN201721914009.9U CN201721914009U CN208090298U CN 208090298 U CN208090298 U CN 208090298U CN 201721914009 U CN201721914009 U CN 201721914009U CN 208090298 U CN208090298 U CN 208090298U
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- moulding
- plastic inner
- metal flange
- seal assembly
- flange connector
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Abstract
The utility model is related to a kind of high-pressure composite containers plastic inner container seal assemblies, the seal assembly is made of metal flange connector, moulding, carbon fiber layer, plastic inner lining and sealing ring, the plastic inner lining is obtained by extrusion and blow molding, there is carbon fiber layer encirclement outside pressure vessel, the moulding constitutes a sub-assembly with metal flange connector, and the sub-assembly is attached with plastic inner lining；The program makes liner and metal flange connector be reliably connected by screw thread, groove, is effectively guaranteed during rotating metal flange, will not be with the disengaging of moulding.
Description
Technical field
The present invention relates to a kind of seal assemblies, and in particular to a kind of high-pressure composite containers plastic inner container seal assembly belongs to
Oiltank structure component technology field.
Background technology
Most of taxi repacking compressed natural gas (CNG) is to replace fuel oil, the operating pressure of general CNG gas cylinders
20MPa；Some vehicles producer has promoted the CNG or CNG vehicles mixed with fuel oil, such as Audi, general.Use hydrogen
Fuel cell car is also current hot spot, and the operating pressure of hydrogen storage gas cylinder is generally 35MPa, 70MPa, and 70MPa
IV types bottle (high-pressure plastic liner clad vessel) is current research and development focus.In addition to automobile-used, 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 simple metal or metal inner lining clad vessel
The problem of, it is not easy to transport；And storage pressure is higher, metal inner tube 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 generates, 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 (U.S.s
State) etc..Relative to simple 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, during use repeatedly, plastic inner lining and metal end
Head connection can loosen, and sealing performance declines.
In view of present situation, 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 illustrates the sealing structure of end face：Metal termination 1 is contacted with the big face of plastic inner lining in technique
It is infeasible, even if feasible cost is also high；The structure does not consider metal termination 1 and the limit on 2 axis of plastic inner lining
Position；The structure does not consider the internal pressure changing pressurising of plastic inner lining when winding, and metal termination 1 and plastic inner lining can be caused to connect
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, can increase compressed gas escape
Risk, especially micro-molecular gas hydrogen, helium.Therefore, there is an urgent need for a kind of new schemes to solve the technical problem.
Invention content
The present invention exactly for the technical problems in the prior art, it is close to provide a kind of high-pressure composite containers plastic inner container
Sealing assembly, the Technical Design is ingenious, compact-sized, and the program is the sealing knot of the pressure vessel for containing high pressure gas
Structure has infiltration leakage caused by reducing the variation that storage tank internal cause temperature and pressure recycles during filling, storage, release
The advantages of.
To achieve the goals above, technical scheme is as follows, a kind of high-pressure composite containers plastic inner container sealing group
Part, which is characterized in that the seal assembly is by metal flange connector, moulding, carbon fiber layer, plastic inner lining and sealing ring group
At the plastic inner lining is obtained by extrusion and blow molding, has carbon fiber layer encirclement outside pressure vessel, by controlling carbon fiber
Width, tension, winding angle etc. make carbon fiber layer and plastic inner lining combine closely, and as the material for plastic inner lining, consider
Using nylon, HDPE, PP, POM, polyester or the like.The moulding constitutes a sub-assembly with metal flange connector, described
Sub-assembly is attached with plastic inner lining.
As an improvement of the present invention, between the plastic inner lining and moulding using laser welding or hot plate welding,
Or the processes such as ultrasonic bonding are attached, it is ensured that its air-tightness.
As an improvement of the present invention, the metal flange connector is linked together with moulding by injection molding manner,
The neck of metal flange connector carries multiple tracks circumferential direction square boss, is circumferentially set in the longitudinal direction of boss upper edge metal flange connector
There are multiple through-holes, while the chassis surface of metal flange prolongs two and is circumferentially with multiple through-holes, and gold is put into when moulding is molded
Belong to bump joint to be integrally formed, is injected in boss gap and the through-hole of metal flange connector by the material of moulding, make two
Person fastens completely.
As an improvement of the present invention, the upper surface for the sub-assembly that the metal flange connector is constituted with moulding has one
A groove, groove is for installing sealing ring.When installing valve member, valve member compresses sealing ring, prevents in pressure vessel
Medium molecule escape.
As an improvement of the present invention, the sub-assembly end outer surface that the metal flange connector and moulding are constituted is set
There is twice cancave cambered surface, for being pressed into carbon fiber.When carrying out the winding of carbon fiber layer, carbon fiber is pressed into cancave cambered surface, enhances and connects
The sealing performance and structural stability of mouth.
As an improvement of the present invention, the inner surface of the metal flange connector be equipped with screw connection structure, be used for
Connecting valve component.The effect of screw connection structure be by screw thread screw can effective connecting valve component, make leakproofness more
Stablize.
As an improvement of the present invention, the mode that the metal flange connector and moulding are connected through a screw thread is into luggage
Match, the bore area in the end outer surface of metal flange connector and moulding is equipped with screw thread.
As an improvement of the present invention, circumferentially there are 4 blockage parts, while metal flange in the bottom surface of moulding
Connector bottom surface is provided with 4 grooves, and blockage part is fixed with groove cooperation.Blockage part can ensure metal bump joint and injection molding
Stablize relatively the position of part.
As an improvement of the present invention, the lower surface of the moulding is equipped with one of groove for placing sealing ring.?
When being connected through a screw thread assembly metal flange connector with moulding, metal flange connector compresses sealing ring, places storage medium point
The escape of son.
As an improvement of the present invention, the outer surface of metal flange connector end is equipped with screw thread, for installing gold
Belong to lantern ring, metal collar compresses moulding after being connect with metal flange connector by screw thread.In order to ensure metal collar connection
Stability, lateral surface are designed with the inclined-plane of concave arc degree, and when carrying out the winding of carbon fiber layer, carbon fiber is pressed into concave arc
Face.The inner hole surface of metal flange connector is equipped with screw connection structure, and the effect of screw connection structure is to screw to have by screw thread
Imitate connecting valve integrated component.
Compared with the existing technology, the invention has the advantages that, 1) the technical solution overall construction design is compact, ingenious,
The program provides a kind of sealing structure of plastic inner lining pressure vessel, makes liner and metal flange connector can by screw thread, groove
By connection, it is effectively guaranteed during rotating metal flange, it will not be with the disengaging of moulding；In moulding and plastics
Close connection is ensured using welding manner between lining；2) it is preferably to prevent the infiltration leakage of gas, ensures its safety and close
Feng Xing, the present invention consider the connection between plastic inner lining and valve integrated package and in high pressure gas leakages that may be present
It is obstructed using O-ring seal on path；3) sealing structure of high-pressure bottle proposed by the present invention, is made in the way of welding
It obtains liner to connect with moulding, be melted into groove by moulding, effectively prevent when rotating metal flange connector and note
The disengaging of plastic, and on path of the high pressure gas there may be leakage, it is provided with groove, an O-ring seal is placed, is blocked
The spilling for preferably hindering gas is played the role of, so as to preferably ensure the close of gas cylinder in the path of gas overflowing
Feng Xing.
Description of the drawings
Fig. 1 compresses container schematic diagram
Fig. 2 sealing structures
Fig. 3 embodiments 1
1 metal termination figure of Fig. 4 schemes
1 metal termination broken section enlarged drawing of Fig. 5 schemes
1 gas leak path figure of Fig. 6 schemes
Fig. 7 embodiments 2
2 metal termination figure of Fig. 8 schemes
2 metal termination broken section enlarged drawing of Fig. 9 schemes
2 gas leak path figure of Figure 10 schemes
In figure：1, valve integrated component, 2, metal flange connector, 3, moulding, 4, carbon fiber layer, 5, plastic inner lining, 6,
Sealing ring, 7, boss gap, 8, screw connection structure, 9, blockage part, 10, metallic sheath.
Specific implementation mode：
In order to deepen the understanding of the present invention, the present embodiment is described in detail below in conjunction with the accompanying drawings.
Embodiment 1：Referring to Fig. 3-Fig. 6, a kind of high-pressure composite containers plastic inner container seal assembly, the seal assembly by
Metal flange connector 2, moulding 3, carbon fiber layer 4, plastic inner lining 5 and sealing ring 6 form, and the plastic inner lining 5 is by squeezing
Go out blow molding acquisition, there is the encirclement of carbon fiber layer 4 outside pressure vessel, by width, tension, the winding angle etc. that control carbon fiber
So that carbon fiber layer 4 is combined closely with plastic inner lining 5, as the material for plastic inner lining 5, be considered as nylon, HDPE, PP,
POM, polyester or the like.The moulding 3 and metal flange connector 2 constitute a sub-assembly, the sub-assembly in plastics
Lining 5 is attached, and laser welding or hot plate welding or ultrasonic bonding etc. are used between the plastic inner lining 5 and moulding 3
Process is attached, it is ensured that its air-tightness, in the concrete case of the present invention shown in Fig. 4, and the metal flange
Connector 2 is linked together with moulding 3 by injection molding manner, and the neck of metal flange connector 2 carries multiple tracks circumferential direction square boss,
Multiple through-holes are circumferentially in the longitudinal direction of boss upper edge metal flange connector 2, while the chassis surface of metal flange 2 prolongs two
It is a to be circumferentially with multiple through-holes, it is put into the integrated molding of metal flange connector 2 when moulding 3 is molded, passes through the material of moulding 3
It injects in boss gap 7 and the through-hole of metal flange connector 2, makes the two fastening completely.
The program makes plastic inner lining be connect with moulding by welding method, ensures its leakproofness；Use O-ring seal pair
Gas leak path is sealed, and reduces the possibility of gas leakage.The materials'use nylon of plastic inner lining, by being blow molded work
Skill is molded, and neck metal flange connector uses metal material, is paid the utmost attention to use aluminum alloy materials, be passed through outside plastic inner lining
The mode of winding wraps up one layer of carbon fiber layer, and the program effectively prevents the infiltration leakage of gas, ensures its safety and sealing
Property.
Embodiment 2：As an improvement of the present invention, as seen from Figure 4, the metal flange connector 2 and moulding 3
There are one grooves for the upper surface of the sub-assembly of composition, and groove is for installing sealing ring 6.When installing valve member 1, valve member
1 compresses sealing ring 6, prevents the medium molecule in pressure vessel from escaping.Metal flange connector passes through groove present in it and note
Plastic generation is fastenedly connected, and ensure that during tightening screw thread, and metal flange connector will not occur de- between moulding
From.In injection molding, an O-ring seal is placed on path of the high pressure gas there may be leakage, can also use Y types, T-type
Deng the sealing ring of other cross sectional shapes, only accordingly change the shape of other grooves, the quantity of this external groove and sealing ring according to
Actual container size also can increase or reduce.Gas is pressed during dotted arrow indicating positions overflows outward in figure, can be by
To the barrier of sealing ring.Remaining structure and advantage are same as Example 1.
Embodiment 3：As an improvement of the present invention, the sub-assembly end that the metal flange connector 2 and moulding 3 are constituted
Head outer surface is equipped with twice cancave cambered surface, for being pressed into carbon fiber.When carrying out the winding of carbon fiber layer 4, carbon fiber is pressed into concave arc
Face enhances the sealing performance and structural stability of interface.Remaining structure and advantage are same as Example 1.
Embodiment 4：As an improvement of the present invention, in described Fig. 4, the inner surface of the metal flange connector 2 is set
There is screw connection structure 8, is used for connecting valve component.The effect of screw connection structure 8 is to screw effectively to connect by screw thread
Valve member 1 makes leakproofness more stablize.Remaining structure and advantage are same as Example 1.
Embodiment 5：Referring to Fig. 7, Fig. 8, a kind of high-pressure composite containers plastic inner container seal assembly, the seal assembly is by gold
Belong to bump joint 2, moulding 3, carbon fiber layer 4, plastic inner lining 5 and sealing ring 6 to form, the plastic inner lining 5 passes through extrusion
Blow molding obtains, and has the encirclement of carbon fiber layer 4 outside pressure vessel, and width, tension, the winding angle etc. by controlling carbon fiber make
Carbon fiber layer 4 is combined closely with plastic inner lining 5, as the material for plastic inner lining 5, be considered as nylon, HDPE, PP,
POM, polyester or the like.The moulding 3 and metal flange connector 2 constitute a sub-assembly, the sub-assembly in plastics
Lining 5 is attached, and laser welding or hot plate welding or ultrasonic bonding etc. are used between the plastic inner lining 5 and moulding 3
Process is attached, it is ensured that its air-tightness, in the program, the metal flange connector 2 is connected through a screw thread with moulding 3
Mode assembled, the bore area in the end outer surface of metal flange connector 2 and moulding 3 is equipped with screw thread.
Embodiment 6：Referring to Fig. 7, Fig. 8, as an improvement of the present invention, as seen from Figure 8, at the bottom of moulding 3
Circumferentially there are 4 blockage parts 9 in face, while 2 bottom surface of metal flange connector is provided with 4 grooves, and blockage part coordinates with groove
It is fixed.Blockage part 9 can ensure that metal bump joint 2 is opposite with the position of moulding 3 and stablize.In the program, in metal method
Blue connector bottom uses hollow design, and four blockages are arranged in ten word directions, contacts, plays a supportive role with moulding, be convenient for
Fixed metal flange connector, while also can also save material.Remaining structure and advantage are same as Example 5.
Embodiment 7：Referring to Fig. 7, Fig. 8, as an improvement of the present invention, in fig. 8, the lower surface of the moulding 3
Equipped with one of groove for placing sealing ring 6.When being connected through a screw thread assembly metal flange connector 2 with moulding 3, metal method
Blue connector 2 compresses sealing ring 6, places the escape of storage medium molecule.Groove is provided on moulding so that metal flange connector
It forms a whole with moulding, and O-ring seal is placed on gas path that may be present, by O-ring seal to gas
Leakage paths are sealed.Remaining structure and advantage are same as Example 5.
Embodiment 8：Referring to Fig. 7, Fig. 8, as an improvement of the present invention, the appearance of 2 end of metal flange connector
Face is equipped with screw thread, and for installing metal collar 10, metal collar 10 compresses injection molding after being connect with metal flange connector 2 by screw thread
Part 3.In order to ensure that the stability of the connection of metal collar 10, lateral surface are designed with the inclined-plane of concave arc degree, when progress carbon fiber
When tieing up the winding of layer 4, carbon fiber is pressed into cancave cambered surface.As seen from Figure 8, the inner hole surface of metal flange connector 2 connects equipped with screw thread
Binding structure 8, the effect of screw connection structure 8 are that screwed by screw thread can effective connecting valve integrated component.Remaining structure and excellent
Point is same as Example 5.
It is new that at least one of embodiment 2,3,4 technical characteristics can also be combined formation by the present invention with embodiment 1
Embodiment；At least one of embodiment 6,7,8 technical characteristics can also be combined formation by the present invention with embodiment 5
New embodiment
It should be noted that above-described embodiment, protection domain not for the purpose of limiting the invention, in above-mentioned technical proposal
On the basis of made equivalents or replacement each fall within the range that the claims in the present invention are protected.
Claims (10)
1. a kind of high-pressure composite containers plastic inner container seal assembly, which is characterized in that the seal assembly by metal flange connector,
Moulding, carbon fiber layer, plastic inner lining and sealing ring composition, the plastic inner lining are obtained by extrusion and blow molding, pressure
There are carbon fiber layer encirclement, the moulding to constitute a sub-assembly, the sub-assembly and plastics with metal flange connector outside container
Liner is attached.
2. high-pressure composite containers plastic inner container seal assembly according to claim 1, which is characterized in that the plastic inner lining
It is attached using processes such as laser welding or hot plate welding or ultrasonic bonding between moulding, it is ensured that its is airtight
Property.
3. high-pressure composite containers plastic inner container seal assembly according to claim 1, which is characterized in that the metal flange
Connector is linked together with moulding by injection molding manner, and the neck of metal flange connector carries multiple tracks circumferential direction square boss,
The longitudinal direction of boss upper edge metal flange connector is circumferentially with multiple through-holes, while the chassis surface of metal flange prolonged for two weeks
To equipped with multiple through-holes, it is put into the integrated molding of metal flange connector when moulding is molded, gold is injected by the material of moulding
Belong in boss gap and the through-hole of bump joint, makes the two fastening completely.
4. high-pressure composite containers plastic inner container seal assembly according to claim 2, which is characterized in that the metal flange
There are one grooves for the upper surface for the sub-assembly that connector is constituted with moulding, and groove is for installing sealing ring.
5. high-pressure composite containers plastic inner container seal assembly according to claim 2, which is characterized in that the metal flange
The sub-assembly end outer surface that connector and moulding are constituted is equipped with twice cancave cambered surface, for being pressed into carbon fiber.
6. high-pressure composite containers plastic inner container seal assembly according to claim 3, which is characterized in that the metal flange
The inner surface of connector 2 is equipped with screw connection structure 8, is used for connecting valve component.
7. high-pressure composite containers plastic inner container seal assembly according to claim 1 or 2, which is characterized in that the metal
Bump joint is assembled with the mode that moulding is connected through a screw thread, in the end outer surface of metal flange connector and moulding
Bore area be equipped with screw thread.
8. high-pressure composite containers plastic inner container seal assembly according to claim 7, which is characterized in that at the bottom of moulding
Circumferentially there are 4 blockage parts in face, while metal flange connector bottom surface is provided with 4 grooves, and blockage part and groove cooperation are solid
It is fixed.
9. high-pressure composite containers plastic inner container seal assembly according to claim 7, which is characterized in that the moulding
Lower surface is equipped with one of groove for placing sealing ring.
10. high-pressure composite containers plastic inner container seal assembly according to claim 7, which is characterized in that the metal method
The outer surface of blue connector end is equipped with screw thread, and for installing metal collar, metal collar is connected by screw thread and metal flange connector
Moulding is compressed after connecing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721914009.9U CN208090298U (en) | 2017-12-31 | 2017-12-31 | A kind of high-pressure composite containers plastic inner container seal assembly |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721914009.9U CN208090298U (en) | 2017-12-31 | 2017-12-31 | A kind of high-pressure composite containers plastic inner container seal assembly |
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| CN208090298U true CN208090298U (en) | 2018-11-13 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131558A (en) * | 2017-12-31 | 2018-06-08 | 亚普汽车部件股份有限公司 | A kind of high-pressure composite containers plastic inner container seal assembly |
| CN111963891A (en) * | 2020-08-28 | 2020-11-20 | 亚普汽车部件股份有限公司 | Plastic inner container of high-pressure composite 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 |
| CN115972641A (en) * | 2022-10-20 | 2023-04-18 | 连云港神鹰复合材料科技有限公司 | Preparation method of novel air cylinder liner made of carbon fiber composite material |
-
2017
- 2017-12-31 CN CN201721914009.9U patent/CN208090298U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131558A (en) * | 2017-12-31 | 2018-06-08 | 亚普汽车部件股份有限公司 | A kind of high-pressure composite containers plastic inner container seal assembly |
| CN111963891A (en) * | 2020-08-28 | 2020-11-20 | 亚普汽车部件股份有限公司 | Plastic inner container of high-pressure composite 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 |
| 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 |
| CN115972641A (en) * | 2022-10-20 | 2023-04-18 | 连云港神鹰复合材料科技有限公司 | Preparation method of novel air cylinder liner made of carbon fiber composite material |
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