CN110220104A - High-pressure composite containers and its manufacturing process - Google Patents
High-pressure composite containers and its manufacturing process Download PDFInfo
- Publication number
- CN110220104A CN110220104A CN201910470118.3A CN201910470118A CN110220104A CN 110220104 A CN110220104 A CN 110220104A CN 201910470118 A CN201910470118 A CN 201910470118A CN 110220104 A CN110220104 A CN 110220104A
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- Prior art keywords
- sealing
- plastic casing
- metal termination
- pressure
- composite containers
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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
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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
- F17C13/00—Details of vessels or of the filling or discharging of vessels
-
- 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
- F17C13/04—Arrangement or mounting of valves
-
- 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
- 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
- F17C2203/0663—Synthetics in form of fibers or filaments
-
- 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
- F17C2209/00—Vessel construction, in particular methods of manufacturing
- F17C2209/21—Shaping processes
- F17C2209/2109—Moulding
- F17C2209/2118—Moulding by injection
-
- 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
- F17C2209/00—Vessel construction, in particular methods of manufacturing
- F17C2209/22—Assembling processes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a kind of high-pressure composite containers and its manufacturing process, and wherein the container includes plastic casing, metal termination, sealing structure, sealing support, bottle-jack valve and fiber winding enhancement layer；Wherein, bottleneck is provided on plastic casing；Metal termination is fixedly connected with plastic casing, and mounting hole is provided in metal termination, and mounting hole is connected to bottleneck；Sealing structure is fixed between plastic casing and metal termination；One end of sealing support is fixedly connected with the inner surface of plastic casing, and the other end for sealing support is fixedly connected after bottleneck stretching with metal termination；Bottle-jack valve is fixed in mounting hole；Fiber winding enhancement layer fixation is wrapped on the outer surface of plastic casing and metal termination.High-pressure composite containers provided by the invention and its manufacturing process can be fully wrapped around by bottleneck by the cooperation of sealing support and metal termination, enhance the bearing strength of bottle mouth position, it is therefore prevented that the leakage of high pressure gas ensure that leakproofness.
Description
Technical field
The present invention relates to high-pressure composite containers manufacturing technology field more particularly to a kind of high-pressure composite containers and its manufacture works
Skill.
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
Medium battery 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 container 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, metallo-plastic liner production technology is more complicated, and cost is higher, and there is also high
Press the risk of gas attack.In order to meet light-weighted requirement, high-pressure plastic liner clad vessel is generated, because of the spy of plastics
Property, such product has the superior functions such as corrosion-resistant, endurance, light-weight.Relative to pure metal or metal inner lining clad vessel,
The guarantee of the leakproofness of high-pressure plastic liner clad vessel is more harsh, and main cause is plastic inner container shell and metal termination
Material is different, and in use process repeatedly, plastic inner container is connect with metal termination to be loosened, sealing performance decline.
In view of status, the hot spot and difficult point of metal termination and plastic inner container connected into for research.Fig. 1 is the prior art
In high-pressure plastic liner clad vessel schematic diagram comprising metal termination 1, plastic inner container 2 and enhancement layer 3, metal termination 1
It is mounted on plastic inner container 2, is wound is wrapped to form by enhancement layer 3 later.Fig. 2 is that high-pressure plastic liner shown in Fig. 1 is multiple
The sealing structure in container is closed, as depicted in figs. 1 and 2, the big face contact of metal termination 1 and plastic inner container 2 is not in technique
It is feasible, even if feasible cost is also high；The sealing structure does not consider the limit on metal termination 1 and 2 axis of plastic inner container
Position；The structure does not consider the internal pressure changing pressurising of plastic inner container 2 when winding, will lead to metal termination 1 and plastic inner container 2
Junction generates gap and causes to leak, leakage path 4 as shown by the arrows in Figure 2；The structure does not consider that bottleneck bears installation and turns round
Limit when square causes metal termination 1 and the bond strength of enhancement layer 3 to reduce after installation；The escape of compressed gas in the structure
Path P is shorter, will increase the risk of compressed gas escape, especially micro-molecular gas CNG, hydrogen, helium etc..Therefore, it studies
A kind of high-pressure composite containers being able to solve the above problem are very necessary.
Summary of the invention
The object of the present invention is to provide a kind of high-pressure composite containers and its manufacturing process, above-mentioned in the prior art to solve
Problem prevents the leakage and infiltration of high-pressure composite containers mesohigh gas medium, guarantees the leakproofness of container.
The present invention provides a kind of high-pressure composite containers, wherein includes:
Plastic casing is provided with bottleneck on the plastic casing；
Metal termination, the metal termination are fixedly connected with the plastic casing, and installation is provided in the metal termination
Hole, the mounting hole are connected to the bottleneck；
Sealing structure, the sealing structure are fixed between the plastic casing and the metal termination；
One end of sealing support, the sealing support is fixedly connected with the inner surface of the plastic casing, the sealing branch
The other end of support is fixedly connected after bottleneck stretching with the metal termination；
Bottle-jack valve, the bottle-jack valve are fixed in the mounting hole；
Fiber winds enhancement layer, and the fiber winding enhancement layer fixation is wrapped in the plastic casing and the metal termination
Outer surface on.
High-pressure composite containers as described above, wherein the sealing support includes the first supporting section being arranged in a mutually vertical manner
With the second supporting section, first supporting section is fixedly connected with the inner surface of the plastic casing, second supporting section and institute
State metal termination threaded connection.
High-pressure composite containers as described above, wherein preferably, the metal termination include construction section, pressure-bearing section and
Strengthening segment, the construction section, pressure-bearing section and strengthening segment are sequentially connected, and the pressure-bearing section is fixedly connected with the plastic casing, institute
It states construction section to be threadedly coupled with the bottle-jack valve, the first arc is provided at the position that the strengthening segment is connect with the construction section
Portion, is provided with the second curved portion at the position that the strengthening segment is connect with the pressure-bearing section, and first curved portion and described
Second curved portion is recessed to the axis direction of the metal termination.
High-pressure composite containers as described above, wherein preferably, be provided in the pressure-bearing section for block set it is described close
The limiting slot of seal structure.
High-pressure composite containers as described above, wherein preferably, mounting groove is provided in the metal termination, it is described
Mounting groove is connected to the mounting hole, and the internal diameter of the mounting groove is greater than the internal diameter of the mounting hole, described to seal the one of support
Fixed support in end is formed by step surface between the mounting groove and the mounting hole.
High-pressure composite containers as described above, wherein preferably, it is provided with screw thread on the inner wall of the mounting groove,
The sealing support is fixedly connected by the screw thread with the mounting groove.
High-pressure composite containers as described above, wherein preferably, the sealing structure is annular, and the sealing is tied
Structure includes the first sealing, the second sealing and third sealing, and the diameter of first sealing is greater than second sealing
The diameter in portion is connected between first sealing and second sealing by the third sealing, and the third is close
The thickness in envelope portion is less than the thickness of first sealing and second sealing.
High-pressure composite containers as described above, wherein preferably, it is provided with seal junction on the plastic casing,
The seal junction is fixedly connected to the plastic casing inner recess, the metal termination with the seal junction.
The present invention also provides a kind of manufacturing process of high-pressure composite containers, wherein includes the following steps:
Sealing support is set on blow needle, and the blanking into mold；
The blow needle for being arranged with the sealing support is extend into the setting position in mold；
Guan Bi mould, to blank blow molding, to form plastic casing；
Mold is opened, blow needle is exited, stays in the sealing support in the plastic casing；
The plastic casing is taken out, the posture of the sealing support is adjusted, so that institute is stretched out in one end of the sealing support
State the bottleneck on plastic casing；
One end that the bottleneck is stretched out in metal termination and the sealing support is fixedly connected.
High-pressure composite containers provided by the invention and its manufacturing process can by the cooperation of sealing support and metal termination
With bottleneck is fully wrapped around, the bearing strength of bottle mouth position is enhanced, while by being arranged between metal termination and sealing support
Sealing structure can prevent high pressure gas from leaking from the cooperation interface of metal termination and plastic casing, ensure that leakproofness.
Detailed description of the invention
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.
Fig. 1 is the schematic diagram of high-pressure plastic liner clad vessel in the prior art；
Fig. 2 is the sealing structure in high-pressure plastic liner clad vessel shown in Fig. 1；
Fig. 3 is the structural schematic diagram of high-pressure composite containers provided in an embodiment of the present invention；
Fig. 4 is state diagram of the high-pressure composite containers provided in an embodiment of the present invention when not installing bottle-jack valve；
Fig. 5 is the schematic diagram of plastic casing and sealing support connection；
Fig. 6 is the structural schematic diagram of metal termination；
Fig. 7 is the structural schematic diagram of sealing support；
Fig. 8 is the cross-sectional view of sealing structure；
Fig. 9 be will seal support be set on blow needle, and into mold blanking shape body figure；
State diagram when Figure 10 is to blank blow molding；
Figure 11 is to the state diagram after blank blow molding.
Description of symbols:
1- metal termination 2- plastic inner container 3- enhancement layer
4- leakage path
The seal junction 100- plastic casing 110- 200- metal termination
210- construction section 220- pressure-bearing section 230- strengthening segment
240- limiting slot 250- mounting groove 300- sealing support
310- the first supporting section 320- the second supporting section 400- fiber winds enhancement layer
500- bottle-jack valve 600- sealing structure the first sealing of 610-
620- the second sealing 630- third sealing 700- bottom metal end
The support of 800- sealed bottom
10- mold 20- blow needle 30- blank
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not construed as limiting the claims.
As shown in Figures 3 to 8, the embodiment of the invention provides a kind of high-pressure composite containers comprising plastic casing 100,
Metal termination 200, sealing structure 600, sealed bottom support 800, bottle-jack valve 500 and fiber wind enhancement layer 400；Wherein, it moulds
Bottleneck is provided on material shell body 100；Metal termination 200 is fixedly connected with plastic casing 100, and peace is provided in metal termination 200
Hole is filled, mounting hole is connected to bottleneck；Sealing structure 600 is fixed between plastic casing 100 and metal termination 200；Bottom
One end of sealing support 800 is fixedly connected with the inner surface of plastic casing 100, and sealed bottom supports 800 other end from bottleneck
It is fixedly connected after stretching with metal termination 200；Bottle-jack valve 500 is fixed in mounting hole；It is fixed that fiber winds enhancement layer 400
It is wrapped on the outer surface of plastic casing 100 and metal termination 200.
Wherein, can be fully wrapped around by bottleneck by the cooperation of sealed bottom support 800 and metal termination 200, it enhances
The bearing strength of bottle mouth position, while by the way that sealing structure 600 is arranged between metal termination 200 and sealed bottom support 800, it can
To prevent high pressure gas from leaking from the cooperation interface of metal termination 200 and plastic casing 100, leakproofness ensure that.
Wherein, as shown in Fig. 4, Fig. 5 and Fig. 7, sealed bottom support 800 includes the first supporting section being arranged in a mutually vertical manner
310 and second supporting section 320, the first supporting section 310 be fixedly connected with the inner surface of plastic casing 100, the second supporting section 320 with
Metal termination 200 is threadedly coupled.Wherein, the first supporting section 310 and the second supporting section 320 can be integrally formed, the first support
Section 310 and the second supporting section 320 can wrap up inner surface and the end face of bottle mouth position, meanwhile, the first supporting section 310 and plastic casing
Cooperation interface on 100 between the inner surface of bottle mouth position extends the leakage paths of high pressure gas, is difficult to high pressure gas
From the cooperation interface around leaking after bottleneck, leakproofness ensure that.In addition, by the first supporting section 310 to table in bottle mouth position
The support in face can act directly on bottleneck to avoid the high pressure in container and lead to bottleneck compressive deformation.Wherein, the first support
It towards the surface inside container is cambered surface in section 310, when the direct pressure inside container acts in the cambered surface, this is straight
The component that pressure can be decomposed on different directions by cambered surface is connect, and the direct pressure received at different location in cambered surface is decomposed
Afterwards, when its component is contrary with the component at other positions, the counteracting of power may be implemented, it is possible thereby to reduce by first
The bearing strength of section 310 is supportted, and then ensure that the durability of bottleneck.
Wherein, sealed bottom support 800 can be the plastic part with some strength, material be chosen as POM, PA, PE,
PP, PPA or PPS etc., it is of course also possible to be metal material, such as aluminium alloy, stainless steel, to this, this embodiment is not limited.
Further, as shown in Figure 4 and Figure 6, metal termination 200 includes construction section 210, pressure-bearing section 220 and strengthening segment 230,
Construction section 210, pressure-bearing section 220 and strengthening segment 230 are sequentially connected, and pressure-bearing section 220 is fixedly connected with plastic casing 100, construction section
210 are threadedly coupled with bottle-jack valve 500, wherein need to design enough threads, thread number between bottle-jack valve 500 and construction section 210
Amount preferably 20 so that bottle-jack valve 500 and construction section 210 form the higher power of being fitted to each other, avoid bottle-jack valve 500 deform or
It flies out；The first curved portion is provided at the position that strengthening segment 230 is connect with construction section 210, strengthening segment 230 and pressure-bearing section 220 connect
The second curved portion is provided at the position connect, and the first curved portion and the second curved portion are to the axis direction of metal termination 200
Recess.
The metal termination 200 can undertake most of pressure inside container by pressure-bearing section 220, can prevent from moulding
The deformation of 100 end capacity compression of material shell body, guarantees the stabilization of the high-pressure composite containers configuration.And due to strengthening segment 230 and pressure-bearing
It is provided with the second curved portion at the position of 220 connection of section, and the first curved portion and the second curved portion are to the axis of metal termination 200
Line direction recess, makes strengthening segment 230 protrude from the surface of metal termination 200, and thus strengthening segment 230 can be greater than 180 ° of angle
The face cooperated with fiber winding enhancement layer 400 is provided on degree, when fiber winding enhancement layer 400 is wrapped in strengthening segment 230, gold
Fiber winding increasing can be passed up in the side greater than 180 ° by the outer surface of strengthening segment 230 by belonging to power suffered by end 200
Strong layer 400, thereby may be ensured that the stability that metal termination 200 is connect with plastic casing 100, while guarantee fiber winding enhancing
The fixed reliability of 400 pairs of metal termination 200 of layer.
In addition, sealing ring can be set in the top end surface of metal termination 200, with guarantee after bottle-jack valve 500 is installed with
Leakproofness between metal termination 200.
Further, as shown in Figure 4 and Figure 6, sealing structure 600 is matched in metal termination 200 and plastic casing 100 in order to prevent
Radial-play occurs on the interface of conjunction, cause generate gap and cause to leak, can be set in pressure-bearing section 220 for block set it is close
The limiting slot 240 of seal structure 600.
Further, mounting groove 250 is provided in metal termination 200, mounting groove 250 is connected to mounting hole, mounting groove 250
Internal diameter is greater than the internal diameter of mounting hole, and institute's shape between mounting groove 250 and mounting hole is supported in one end fixation of sealed bottom support 800
At step surface on.When the second supporting section 320 in sealed bottom support 800 is connect with metal termination 200, the second supporting section
320 end can be connected on above-mentioned step surface, meanwhile, the inner wall of the side wall and mounting groove 250 of the second supporting section 320 is close
Connection guarantees leakproofness, while step surface can also so as to realize the package to the second supporting section 320 by mounting groove 250
To extend the cooperation interface of itself and sealed bottom support 800, and then the leakage paths of high pressure gas are extended, further prevented
Gas leakage.
Wherein, screw thread is provided on the inner wall of mounting groove 250, sealed bottom support 800 passes through screw thread and mounting groove 250
It is fixedly connected, so that metal termination 200 and sealed bottom support 800 can be connected through a screw thread tightening, makes 600 shape of sealing structure
At being effectively compressed, to form the sealed section for effectively preventing gas medium from leaking and permeating, excellent metal termination 200 is constituted
Sealing performance between plastic casing 100.
Further, as shown in Fig. 4, Fig. 5 and Fig. 8, sealing structure 600 is annular, and sealing structure 600 includes the first sealing
The diameter of portion 610, the second sealing 620 and third sealing 630, the first sealing 610 is greater than the straight of the second sealing 620
Diameter is connected between the first sealing 610 and the second sealing 620 by third sealing 630, the thickness of third sealing 630
Less than the thickness of the first sealing 610 and the second sealing 620.Pass through the first sealing 610 and the second sealing 620 as a result,
It can successively realize that two-stage seals, while by making the thickness of third sealing 630 less than the first sealing 610 and the second sealing
The thickness in portion 620 can provide deformation space for the first sealing 610 and the second sealing 620, guarantee metal termination 200 with
First sealing 610 and the second sealing 620 sufficiently squeeze contact, guarantee leakproofness.
Further, seal junction 110 is provided on plastic casing 100, seal junction 110 is into plastic casing 100
Portion's recess, metal termination 200 are fixedly connected with seal junction 110.The seal junction 110 can be increase metal as a result,
End 200 provides space in the axial length of plastic casing 100, to realize increase the moment of inertia, improves bearing capacity.
It should be noted that the outside wall surface of the pressure-bearing section 220 of metal termination 200 is arcwall face, which can be with modeling
The outside wall surface of material shell body 100 forms a complete continuous cambered surface, it is possible thereby to guarantee that fiber winding enhancement layer 400 can be wrapped tightly
It is rolled in pressure-bearing section 220, so that metal termination 200 and plastic casing 100 is able to bear higher container pressure, avoid plastic casing
The problems such as 100 deformations or metal termination 200 fly out.
Further, as shown in figure 3, the high-pressure composite containers further include bottom metal end 700 and sealed bottom support
800, the structure of sealed bottom support 800 can be identical as the above-mentioned structure of sealed bottom support 800 that bottle mouth position is arranged in,
And the structure of bottom metal end 700 is different from the above-mentioned structure of metal termination 200 that bottle mouth position is arranged in, and specifically, plastics
Hole can be set in one end far from bottleneck on shell 100, bottom metal end 700 is by sealed bottom support 800 and is somebody's turn to do
Plastic casing 100 around hole is fixedly connected, and bottom metal end 700 can block in the hole completely after mounting, i.e. bottom
Not set any hole characteristic that can be connected to the hole in portion's metal termination 700, so as to realize to 100 bottom of plastic casing
Be fully sealed, while can guarantee the bottom of high-pressure composite containers structural strength with higher, to realize promotion
The bearing capacity of the high-pressure composite containers two-end structure, extends service life.
As shown in Figures 9 to 11, the embodiment of the invention also provides a kind of manufacturing process of high-pressure composite containers comprising
Following steps:
Step S1, sealed bottom support 800 is set on blow needle 20, and the blanking into mold 10.
Step S2, the blow needle 20 for being arranged with sealed bottom support 800 is extend into the setting position in mold 10, such as Fig. 9
It is shown.
Step S3, Guan Bi mould 10, to 30 blow molding of blank, to form plastic casing 100, as shown in Figure 10.
Step S4, mold 10 is opened, blow needle 20 is exited, sealed bottom support 800 is stayed in plastic casing 100, such as schemes
Shown in 11.
Step S5, plastic casing 100, the posture of adjustment sealed bottom support 800, so that sealed bottom support 800 are taken out
One end stretch out plastic casing 100 on bottleneck.
Step S6, the fixed company in one end of the bottleneck will be stretched out in metal termination 200 and sealed bottom support 800
It connects.
High-pressure composite containers provided in an embodiment of the present invention and its manufacturing process are matched by sealing support and metal termination
It closes, can be fully wrapped around by bottleneck, the bearing strength of bottle mouth position is enhanced, while by between metal termination and sealing support
Sealing structure is set, can prevent high pressure gas from leaking from the cooperation interface of metal termination and plastic casing, ensure that sealing
Property.
Structure, feature and effect of the invention, the above institute are described in detail based on the embodiments shown in the drawings
Only presently preferred embodiments of the present invention is stated, but the present invention does not limit the scope of implementation as shown in the drawings, it is all according to structure of the invention
Think made change or equivalent example modified to equivalent change, when not going beyond the spirit of the description and the drawings,
It should all be within the scope of the present invention.
Claims (9)
1. a kind of high-pressure composite containers characterized by comprising
Plastic casing is provided with bottleneck on the plastic casing；
Metal termination, the metal termination are fixedly connected with the plastic casing, and mounting hole, institute are provided in the metal termination
Mounting hole is stated to be connected to the bottleneck；
Sealing structure, the sealing structure are fixed between the plastic casing and the metal termination；
One end of sealing support, the sealing support is fixedly connected with the inner surface of the plastic casing, the sealing support
The other end is fixedly connected after bottleneck stretching with the metal termination；
Bottle-jack valve, the bottle-jack valve are fixed in the mounting hole；
Fiber winds enhancement layer, and fiber winding enhancement layer is fixed to be wrapped in the outer of the plastic casing and the metal termination
On surface.
2. high-pressure composite containers according to claim 1, which is characterized in that the sealing support includes being arranged in a mutually vertical manner
The first supporting section and the second supporting section, first supporting section is fixedly connected with the inner surface of the plastic casing, described
Two supporting sections are threadedly coupled with the metal termination.
3. high-pressure composite containers according to claim 1, which is characterized in that the metal termination includes construction section, pressure-bearing
Section and strengthening segment, the construction section, pressure-bearing section and strengthening segment are sequentially connected, the pressure-bearing section and the fixed company of the plastic casing
It connects, the construction section is threadedly coupled with the bottle-jack valve, and is provided at the position that the strengthening segment is connect with the construction section
One curved portion is provided with the second curved portion, and first curved portion at the position that the strengthening segment is connect with the pressure-bearing section
It is recessed to the axis direction of the metal termination with second curved portion.
4. high-pressure composite containers according to claim 3, which is characterized in that be provided in the pressure-bearing section and set institute for blocking
State the limiting slot of sealing structure.
5. high-pressure composite containers according to claim 1, which is characterized in that it is provided with mounting groove in the metal termination,
The mounting groove is connected to the mounting hole, and the internal diameter of the mounting groove is greater than the internal diameter of the mounting hole, the sealing support
Fixed support in one end be formed by step surface between the mounting groove and the mounting hole.
6. high-pressure composite containers according to claim 5, which is characterized in that be provided with spiral shell on the inner wall of the mounting groove
Line, the sealing support are fixedly connected by the screw thread with the mounting groove.
7. high-pressure composite containers according to claim 1, which is characterized in that the sealing structure is annular, and described close
Seal structure includes the first sealing, the second sealing and third sealing, and the diameter of first sealing is greater than described second
The diameter of sealing is connected between first sealing and second sealing by the third sealing, and described
The thickness of three sealings is less than the thickness of first sealing and second sealing.
8. high-pressure composite containers according to claim 1, which is characterized in that be provided with sealing on the plastic casing and combine
Portion, the seal junction are fixedly connected to the plastic casing inner recess, the metal termination with the seal junction.
9. a kind of manufacturing process of high-pressure composite containers, which comprises the steps of:
Sealing support is set on blow needle, and the blanking into mold；
The blow needle for being arranged with the sealing support is extend into the setting position in mold；
Guan Bi mould, to blank blow molding, to form plastic casing；
Mold is opened, blow needle is exited, stays in the sealing support in the plastic casing；
The plastic casing is taken out, the posture of the sealing support is adjusted, so that the modeling is stretched out in one end of the sealing support
Bottleneck on material shell body；
One end that the bottleneck is stretched out in metal termination and the sealing support is fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910470118.3A CN110220104A (en) | 2019-05-31 | 2019-05-31 | High-pressure composite containers and its manufacturing process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910470118.3A CN110220104A (en) | 2019-05-31 | 2019-05-31 | High-pressure composite containers and its manufacturing process |
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| CN110220104A true CN110220104A (en) | 2019-09-10 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848558A (en) * | 2019-11-14 | 2020-02-28 | 江苏国富氢能技术装备有限公司 | Gas cylinder mouth structure with plastic liner and fully-wound fibers |
| EP4092164A1 (en) * | 2021-05-17 | 2022-11-23 | Siemens Energy Global GmbH & Co. KG | Pressure equipment with support structure device |
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Application publication date: 20190910 |