CN110145682A - Plastic casing and high-pressure composite containers - Google Patents
Plastic casing and high-pressure composite containers Download PDFInfo
- Publication number
- CN110145682A CN110145682A CN201910471150.3A CN201910471150A CN110145682A CN 110145682 A CN110145682 A CN 110145682A CN 201910471150 A CN201910471150 A CN 201910471150A CN 110145682 A CN110145682 A CN 110145682A
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- China
- Prior art keywords
- metal termination
- pressure
- multilayer cover
- layer
- plastic casing
- Prior art date
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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
- F17C1/02—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge involving reinforcing arrangements
- F17C1/04—Protecting sheathings
- F17C1/06—Protecting sheathings built-up from wound-on bands or filamentary material, e.g. wires
-
- 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
- F17C1/16—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge constructed of plastics materials
-
- 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
- F17C2201/01—Shape
- F17C2201/0104—Shape cylindrical
- F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
-
- 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
- F17C2201/03—Orientation
- F17C2201/035—Orientation with substantially horizontal main axis
-
- 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
- F17C2203/0621—Single wall with three 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
- 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
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0305—Bosses, e.g. boss collars
-
- 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
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
-
- 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
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0107—Single phase
- F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
-
- 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
- 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
- F17C2223/036—Very high pressure (>80 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
- F17C2265/00—Effects achieved by gas storage or gas handling
- F17C2265/06—Fluid distribution
- F17C2265/061—Fluid distribution for supply of supplying vehicles
Abstract
The invention discloses a kind of plastic casing and high-pressure composite containers, and wherein the plastic casing includes ontology and multilayer cover, which is fixedly connected with the end of ontology in the axial direction, and bottleneck is provided on multilayer cover, and multilayer cover includes two layers or more of layer structure.Plastic casing and high-pressure composite containers provided by the invention ensure that the leakproofness and the alternation of resistance to high-low pressure performance and low-temperature impact-resistant performance of high-pressure composite containers entirety by the cooperation of multilayer cover and metal termination.
Description
Technical field
The present invention relates to clad vessel manufacturing technology field more particularly to a kind of plastic casings and high-pressure composite containers.
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.；In addition, plastics
The end of shell easily deforms in the case where high-low pressure alternation, while being also difficult to bear low-temperature impact.Therefore, one kind is studied
The high-pressure composite containers for 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 plastic casing and high-pressure composite containers, to solve above-mentioned in the prior art ask
Topic, prevents the leakage and infiltration of high-pressure composite containers mesohigh gas medium, and the sealing performance of hoisting container and resistance to high-low pressure are handed over
Denaturation energy and low-temperature impact-resistant performance.
The present invention provides a kind of plastic casings, wherein includes:
Ontology and multilayer cover, the multilayer cover are fixedly connected with the end of the ontology in the axial direction, on the multilayer cover
It is provided with bottleneck, the multilayer cover includes two layers or more of layer structure.
Plastic casing as described above, wherein preferably, layered structure includes Withstand voltage layer, barrier layer and resistance to low
Warm layer, successively lamination is connected by the outer laterally inner side of the ontology for the Withstand voltage layer, barrier layer and low temperature resistant layer.
Plastic casing as described above, wherein preferably, the material of the barrier layer is EVOH, PPS or PVDF, institute
The material for stating low temperature resistant layer is PE, PA or PP.
Plastic casing as described above, wherein preferably, the Withstand voltage layer, barrier layer and low temperature resistant layer pass through plastic uptake
Technique lamination is connected.
Plastic casing as described above, wherein preferably, the multilayer cover includes the interconnecting piece being sequentially connected, inclination
Portion and horizontal part；
The interconnecting piece is fixedly linked with the ontology；
Inner inclination from the rake to the ontology, and between the rake and the horizontal part at obtuse angle,
The rake and the horizontal part, which are used to seal with metal termination, to be cooperated；
The bottleneck is arranged on the horizontal part.
Plastic casing as described above, wherein preferably, the multilayer cover passes through hot plate welding, ultrasonic bonding, swashs
One of photocoagulation or friction welding are fixedly linked with the ontology.
The present invention also provides a kind of high-pressure composite containers, wherein including plastic casing provided by the invention, the high pressure
Clad vessel further include:
Metal termination, the metal termination and the multilayer cover fixing seal cooperate, be provided in the metal termination with
The through-hole of the bottleneck connection；
Bottle-jack valve, the bottle-jack valve are connected by the through-hole with metal termination sealing；
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 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 multilayer cover；
The construction section is threadedly coupled with the bottle-jack valve；
The first curved portion is provided at the position that the strengthening segment is connect with the construction section, the strengthening segment is held with described
It is provided with the second curved portion at the position of pressure section connection, and first curved portion and second curved portion are to the metal
The axis direction of end is recessed.
High-pressure composite containers as described above, wherein further include fixture nut, the metal termination is also wrapped preferably
Fixed section is included, the fixed section extend into the inside of the ontology from the bottleneck, is provided with spiral shell on the outer wall of the fixed section
Line, the fixture nut are fixedly linked by the screw thread and the fixed section.
High-pressure composite containers as described above, wherein preferably, further include sealing ring, in the metal termination with institute
It states and is provided with limiting slot on the surface of multilayer cover cooperation, the sealing ring is arranged in the limiting slot, and the sealing ring
The diameter in section is greater than the depth of the limiting slot.
Plastic casing and high-pressure composite containers provided by the invention ensure that by the cooperation of multilayer cover and metal termination
The leakproofness and the alternation of resistance to high-low pressure performance and low-temperature impact-resistant performance of high-pressure composite containers entirety.
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 partial view of multilayer cover in the application；
Fig. 4 is the structural schematic diagram of ontology；
Fig. 5 is the partial sectional view of multilayer cover；
Fig. 6 is the structural schematic diagram of high-pressure composite containers provided in an embodiment of the present invention；
Fig. 7 is the partial enlarged view of Fig. 6；
Fig. 8 is state diagram of the high-pressure composite containers provided in an embodiment of the present invention when not installing bottle-jack valve.
Description of symbols:
1- metal termination 2- plastic inner container 3- enhancement layer
4- leakage path
100- multilayer cover 101- Withstand voltage layer 102- barrier layer
The low temperature resistant layer 110- interconnecting piece 120- rake of 103-
130- horizontal part 200- ontology 300- fixture nut
400- metal termination 410- pressure-bearing section 420- construction section
430- strengthening segment 440- fixed section 500- sealing ring
600- bottle-jack valve 700- fiber winds enhancement layer
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 5, the embodiment of the invention provides a kind of plastic casings comprising ontology 200 and multilayer cover
100, which is fixedly connected with the end of ontology 200 in the axial direction, and bottleneck, multilayer cover are provided on multilayer cover 100
100 include two layers or more of layer structure.Wherein, every layer of layer structure can use different materials, so that every layer of layer
Shape structure has different characteristics, such as pressure resistant type, that cold temperature impact and high leakproofness, to ensure that the compound appearance of high pressure
The leakproofness and the alternation of resistance to high-low pressure performance and low-temperature impact-resistant performance of device entirety.
Specifically, resistance to as shown in figure 5, layer structure may include Withstand voltage layer 101, barrier layer 102 and low temperature resistant layer 103
Successively lamination is connected by the outer laterally inner side of ontology 200 for pressurized layer 101, barrier layer 102 and low temperature resistant layer 103.Due to low temperature resistant layer
103 directly contact with the high pressure gas in container, so as to directly keep out low-temperature impact by low temperature resistant layer 103, wherein resistance to
The material of cryosphere 103 can be PE, PA or PP；Simultaneously as barrier layer 102 is arranged in Withstand voltage layer 101 and low temperature resistant layer 103
Between at position, high-pressure gas medium can be obstructed and penetrate into the external world, guarantee the leakproofness of container, wherein the material of barrier layer 102
Matter can be EVOH, PPS or PVDF；In addition, Withstand voltage layer 101 is arranged in the outermost layer in multilayer cover 100, it is ensured that multilayer cover
100 overall structural strength makes multilayer cover 100 not deform when by container impacting with high pressure.
It should be noted that Withstand voltage layer 101, barrier layer 102 and low temperature resistant layer 103 can pass through plastic uptake technique lamination phase
Even, to guarantee that the faying face of Withstand voltage layer 101, barrier layer 102 and low temperature resistant layer 103 will not generate parting line, guarantee that each layer combines
Compactness, lift-off seal effect.
Further, as shown in figure 3, multilayer cover 100 includes interconnecting piece 110, rake 120 and the horizontal part being sequentially connected
130；Interconnecting piece 110 is fixedly linked with ontology 200, inner inclination of the rake 120 to ontology 200, and rake 120 and horizontal
Between portion 130 at obtuse angle, rake 120 and horizontal part 130, which are used to seal with metal termination 400, to be cooperated, and bottleneck is arranged in water
In flat portion 130.Wherein, it is provided with cambered surface on the outer wall of interconnecting piece 110, which can form with the outer wall surface of ontology 200
With complete continuous arcwall face, it is possible thereby to guarantee that fiber winding enhancement layer 700 can tightly be wrapped in ontology 200 and multilayer cover
100 and container on metal termination 400 on, so as to so that metal termination 400 and plastic casing are able to bear higher appearance
Device pressure, while plastic casing also being avoided to deform and metal termination 400 the problems such as flying out.
Further, since inner inclination of the rake 120 to ontology 200, so as to be increase metal termination 400 in plastics
The length of shell axial direction provides space, so as to realize increase the moment of inertia, promotes bearing capacity.And pass through setting horizontal part
130, it is ensured that the stability that metal termination 400 is supported and fixed.
It should be noted that multilayer cover 100 can pass through hot plate welding, ultrasonic bonding, laser welding or friction welding
One of be fixedly linked with ontology 200, thereby may be ensured that the reliability that multilayer cover 100 is combined with ontology 200, while can be with
Guarantee the sealing effect of multilayer cover 100 and 200 junction of ontology.
Further, such as Fig. 3 to Fig. 8, the embodiment of the invention also provides a kind of high-pressure composite containers comprising the present invention appoints
The plastic casing that embodiment of anticipating provides, the high-pressure composite containers further include that metal termination 400, bottle-jack valve 600 and fiber winding increase
Strong layer 700, wherein metal termination 400 and 100 fixing seal of multilayer cover cooperate, and are provided in metal termination 400 and are connected to bottleneck
Through-hole；Bottle-jack valve 600 is connected by through-hole with the sealing of metal termination 400；The fiber winding fixation of enhancement layer 700 is wrapped in plastics
On the outer surface of shell and metal termination 400.Wherein, the layer structure of every layer of multilayer cover 100 can use different materials, with
Making every layer of layer structure has different characteristics, such as pressure resistant type, that cold temperature impact and high leakproofness, to ensure that
The leakproofness and the alternation of resistance to high-low pressure performance and low-temperature impact-resistant performance of high-pressure composite containers entirety.
Further, metal termination 400 includes construction section 420, pressure-bearing section 410 and strengthening segment 430, construction section 420, pressure-bearing section
410 and strengthening segment 430 be sequentially connected, pressure-bearing section 410 is fixedly connected with multilayer cover 100；Construction section 420 and 600 screw thread of bottle-jack valve
Connection, wherein need to design enough threads between bottle-jack valve 600 and construction section 420, thread quantity is preferably 20, so that
Bottle-jack valve 600 and construction section 420 form the higher power of being fitted to each other, and bottle-jack valve 600 is avoided to deform or fly out；Strengthening segment 430 with
It is provided with the first curved portion at the position that construction section 420 connects, is provided at the position that strengthening segment 430 is connect with pressure-bearing section 410
Second curved portion, and the first curved portion and the second curved portion are recessed to the axis direction of metal termination 400.
The metal termination 400 can undertake most of pressure inside container by pressure-bearing section 410, can prevent from moulding
Expect shell end compressive deformation, guarantees the stabilization of the high-pressure composite containers configuration.And due to strengthening segment 430 and pressure-bearing section
It is provided with the second curved portion at the position of 410 connections, and the first curved portion and the second curved portion are to the axis of metal termination 400
Direction recess, makes strengthening segment 430 protrude from the surface of metal termination 400, and thus strengthening segment 430 can be greater than 180 ° of angle
The face that upper offer cooperates with fiber winding enhancement layer 700, when fiber winding enhancement layer 700 is wrapped in strengthening segment 430, metal
Power suffered by end 400 can be passed up to fiber winding enhancing in the side greater than 180 ° by the outer surface of strengthening segment 430
Layer 700, thereby may be ensured that the stability that metal termination 400 is connect with plastic casing, while guarantee that fiber winds enhancement layer 700
To the reliability that metal termination 400 is fixed.
Further, as shown in Fig. 3, Fig. 7 and Fig. 8, which further includes fixture nut 300, metal termination 400
It further include fixed section 440, fixed section 440 extend into the inside of ontology 200 from bottleneck, is provided with spiral shell on the outer wall of fixed section 440
Line, fixture nut 300 are fixedly linked by screw thread with fixed section 440.After metal termination 400 and the sealing of multilayer cover 100 cooperate,
Fixed section 440 can be extend into inside plastic casing from bottleneck, and can be tightened nut 300 at this time, to pass through fixture nut
300 and the cooperation of fixed section 440 be fitted close multilayer cover 100 and metal termination 400, ensure that the leakproofness of container.
Further, as shown in fig. 7, the high-pressure composite containers further include sealing ring 500, in metal termination 400 with multilayer cover
Limiting slot is provided on the surface of 100 cooperations, sealing ring 500 is arranged in limiting slot, and the diameter in the section of sealing ring 500 is big
In the depth of limiting slot.When metal termination 400 and multilayer cover 100 cooperate, metal termination 400, which can squeeze sealing ring 500, to be made
It deforms, so as to promote the sealing cooperated between metal termination 400 and multilayer cover 100 effect by sealing ring 500
Fruit.
In addition, sealing ring also can be set in the top end surface of metal termination 400, after guaranteeing that bottle-jack valve 600 is installed
With the leakproofness between metal termination 400.
Plastic casing and high-pressure composite containers provided in an embodiment of the present invention, by the cooperation of multilayer cover and metal termination,
It ensure that the leakproofness and the alternation of resistance to high-low pressure performance and low-temperature impact-resistant performance of high-pressure composite containers entirety.
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 (10)
1. a kind of plastic casing characterized by comprising
Ontology and multilayer cover, the multilayer cover are fixedly connected with the end of the ontology in the axial direction, are arranged on the multilayer cover
There is bottleneck, the multilayer cover includes two layers or more of layer structure.
2. plastic casing according to claim 1, which is characterized in that layered structure include Withstand voltage layer, barrier layer and
Low temperature resistant layer, successively lamination is connected by the outer laterally inner side of the ontology for the Withstand voltage layer, barrier layer and low temperature resistant layer.
3. plastic casing according to claim 2, which is characterized in that the material of the barrier layer be EVOH, PPS or
PVDF, the material of the low temperature resistant layer are PE, PA or PP.
4. plastic casing according to claim 2, which is characterized in that the Withstand voltage layer, barrier layer and low temperature resistant layer pass through
Plastic uptake technique lamination is connected.
5. plastic casing according to claim 1, which is characterized in that the multilayer cover include the interconnecting piece being sequentially connected,
Rake and horizontal part；
The interconnecting piece is fixedly linked with the ontology；
Inner inclination from the rake to the ontology, and between the rake and the horizontal part at obtuse angle, it is described
Rake and the horizontal part, which are used to seal with metal termination, to be cooperated；
The bottleneck is arranged on the horizontal part.
6. plastic casing according to claim 1, which is characterized in that the multilayer cover passes through hot plate welding, supersonic welding
It connects, one of laser welding or friction welding are fixedly linked with the ontology.
7. a kind of high-pressure composite containers, which is characterized in that including plastic casing described in any one of claims 1-6, the height
Press clad vessel further include:
Metal termination, the metal termination and the multilayer cover fixing seal cooperate, be provided in the metal termination with it is described
The through-hole of bottleneck connection；
Bottle-jack valve, the bottle-jack valve are connected by the through-hole with metal termination sealing；
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.
8. high-pressure composite containers according to claim 7, 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, and the pressure-bearing section is fixedly connected with the multilayer cover；
The construction section is threadedly coupled with the bottle-jack valve；
The first curved portion, the strengthening segment and the pressure-bearing section are provided at the position that the strengthening segment is connect with the construction section
The second curved portion is provided at the position of connection, and first curved portion and second curved portion are to the metal termination
Axis direction recess.
9. high-pressure composite containers according to claim 7, which is characterized in that it further include fixture nut, the metal termination
It further include fixed section, the fixed section extend into the inside of the ontology from the bottleneck, is arranged on the outer wall of the fixed section
There is screw thread, the fixture nut is fixedly linked by the screw thread and the fixed section.
10. high-pressure composite containers according to claim 7, which is characterized in that further include sealing ring, in the metal termination
It is provided with limiting slot on the surface of multilayer cover cooperation, the sealing ring is arranged in the limiting slot, and the sealing
The diameter in the section of circle is greater than the depth of the limiting slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910471150.3A CN110145682A (en) | 2019-05-31 | 2019-05-31 | Plastic casing and high-pressure composite containers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910471150.3A CN110145682A (en) | 2019-05-31 | 2019-05-31 | Plastic casing and high-pressure composite containers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110145682A true CN110145682A (en) | 2019-08-20 |
Family
ID=67590169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910471150.3A Pending CN110145682A (en) | 2019-05-31 | 2019-05-31 | Plastic casing and high-pressure composite containers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110145682A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110748785A (en) * | 2019-09-13 | 2020-02-04 | 上海空间推进研究所 | Metal and non-metal composite lining fiber winding composite material gas cylinder and manufacturing method thereof |
| CN111963888A (en) * | 2020-08-28 | 2020-11-20 | 亚普汽车部件股份有限公司 | Sealing structure of high-pressure gas cylinder with plastic inner container |
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| US4690295A (en) * | 1983-11-09 | 1987-09-01 | The British Petroleum Company P.L.C. | Pressure container with thermoplastic fusible plug |
| US5476189A (en) * | 1993-12-03 | 1995-12-19 | Duvall; Paul F. | Pressure vessel with damage mitigating system |
| CN102168756A (en) * | 2010-02-26 | 2011-08-31 | 通用汽车环球科技运作有限责任公司 | Extruded tube welded vessel liner with injection molded end caps |
| US20110220659A1 (en) * | 2010-03-10 | 2011-09-15 | Gm Global Technology Operations, Inc. | Liner for a pressure vessel and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4366917A (en) * | 1975-03-04 | 1983-01-04 | Technigaz | Cryogenic tank |
| US4690295A (en) * | 1983-11-09 | 1987-09-01 | The British Petroleum Company P.L.C. | Pressure container with thermoplastic fusible plug |
| US5476189A (en) * | 1993-12-03 | 1995-12-19 | Duvall; Paul F. | Pressure vessel with damage mitigating system |
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| US20110220659A1 (en) * | 2010-03-10 | 2011-09-15 | Gm Global Technology Operations, Inc. | Liner for a pressure vessel and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110748785A (en) * | 2019-09-13 | 2020-02-04 | 上海空间推进研究所 | Metal and non-metal composite lining fiber winding composite material gas cylinder and manufacturing method thereof |
| CN111963888A (en) * | 2020-08-28 | 2020-11-20 | 亚普汽车部件股份有限公司 | Sealing structure of high-pressure gas cylinder with plastic inner container |
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