CN1084862C - Full compound material gas cylinder for vehicle use compressed natural gas and manufacturing method thereof - Google Patents

Full compound material gas cylinder for vehicle use compressed natural gas and manufacturing method thereof Download PDF

Info

Publication number
CN1084862C
CN1084862C CN97103911A CN97103911A CN1084862C CN 1084862 C CN1084862 C CN 1084862C CN 97103911 A CN97103911 A CN 97103911A CN 97103911 A CN97103911 A CN 97103911A CN 1084862 C CN1084862 C CN 1084862C
Authority
CN
China
Prior art keywords
gas cylinder
inner bag
composite material
material gas
metal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN97103911A
Other languages
Chinese (zh)
Other versions
CN1196462A (en
Inventor
屈永强
张康助
蒋钦荣
刘文会
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
No43 Inst No4 Inst Chinese Aerospace Industry Corp
Original Assignee
No43 Inst No4 Inst Chinese Aerospace Industry Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by No43 Inst No4 Inst Chinese Aerospace Industry Corp filed Critical No43 Inst No4 Inst Chinese Aerospace Industry Corp
Priority to CN97103911A priority Critical patent/CN1084862C/en
Publication of CN1196462A publication Critical patent/CN1196462A/en
Application granted granted Critical
Publication of CN1084862C publication Critical patent/CN1084862C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

The present invention relates to a full composite material gas bottle for compressed natural gas for automobiles, which comprises a plastic inner liner, a composite material structural layer, a protective layer and metallic nozzle connecting flanges, wherein the composite material structural layer is wound outside the plastic inner liner; the outer surface of the composite material structural layer is wrapped by the protective layer; the metallic nozzle connecting flanges are respectively connected with gas outlets of sealing heads at both ends of the plastic inner liner. The method for manufacturing the gas bottle comprises the sequential steps of processing of metallic flanges, rolling of the plastic inner liner, dipping of continuous fiber in moderate temperature solidified epoxy resin glue, wet winding of the composite material structural layer, wrapping of the protective layer of the outer surface of a moderate temperature solidified and shaped composite material. The present invention has the advantages of light weight (about 35kg), durability, good gas tightness, high static strength and fatigue strength, simple manufacturing technology, high productive efficiency and low cost.

Description

Full compound material gas cylinder for vehicle use compressed natural gas and manufacture method thereof
The present invention relates to a kind of compressed natural gas used as vehicle fuel gas cylinder and manufacture method thereof, particularly a kind of full composite wood compressed natural gas used as vehicle fuel gas cylinder is a kind of with the be used as power automobile accessories product of fuel of rock gas.At present, domestic this type of gas cylinder only limits to steel gas cylinder, it is that base growth is come with the oxygen cylinder, its material is a steel, big (50 liters of the volumes of sole mass, about 65Kg), and geomery big (φ 229 * 1500), be unfavorable for installing and using on the multiple vehicle development and use with natural gas energy resource.The kind of external this type of gas cylinder has the steel gas cylinder of steel, hoop wound composite.The steel cylinder of steel cylinder, hoop wound composite self is great, use is on large vehicle,, loading anharmonic ratio heavy with its car body, gas cylinder is heavy insignificant, but use on dilly, particularly sedan car, taxi, the heavy distribution that will influence body gravity of gas cylinder, and with loading heavy phase ratio, it is heavy that gas cylinder weight has just occupied certain loading, reduce the deadweight of gas cylinder, it is smaller that gas cylinder must be made, and correspondingly, gas cylinder volume reduces, the gas cylinder aeration quantity reduces, and the distance that car travels will reduce.
The object of the present invention is to provide a kind of lightweight, durable and lower-cost full composite material gas cylinder.
Another object of the present invention is to provide a kind of manufacture method of above-mentioned gas cylinder.
The object of the present invention is achieved like this: a kind of full compound material gas cylinder for vehicle use compressed natural gas; comprise the plastics inner bag; be wrapped in the outer composite structural laminate of plastics inner bag; be coated on the fire prevention that has of composite structural laminate outer surface; moistureproof; acid-proof; alkali; salt; the protective layer of antistatic and the metal that is connected on end socket air outlet, plastics inner bag two ends respectively connect the mouth flange; its characteristics are: above-mentioned metal mouth flange all has through hole; the central axes of its through hole central axis and plastics inner bag, and end socket air outlet, above-mentioned plastics inner bag two ends place connects with above-mentioned metal that the mouth flange directly is embedded in or by being threaded togather.
The manufacture method of above-mentioned gas cylinder comprises the following steps:
(1) Design and Machining of metal flange;
(2) rolling of plastics inner bag;
(3) continuous fiber soaks the epoxy resin glue of intermediate temperature setting, wet method wound composite construction layer;
(4) intermediate temperature setting of composite structural laminate;
(5) system of covering of gas cylinder external protection.
After the rolling of plastics inner bag, at liner end enclosure outer surface or inner bag outer surface Pasting rubber layer.
The present invention is described in more detail below in conjunction with drawings and Examples.
Fig. 1 is an overall structure sectional view of the present invention;
Fig. 2 inlays the partial sectional view that is connected for plastics inner bag of the present invention connects the mouth flange with metal;
The inner bag partial sectional view that Fig. 3 joins by screw thread and metal flange for plastics inner bag of the present invention;
The partial sectional view that Fig. 4 joins by screw thread and metal flange for plastics inner bag of the present invention.
Referring to accompanying drawing 1; present embodiment comprises plastics inner bag 3, be wrapped in the outer composite structural laminate 4 of plastics inner bag, be coated on the gas cylinder protective layer 5 of composite structural laminate 4 outer surfaces, be connected on the metal that place, end socket air outlet, plastics inner bag two ends all has a through hole respectively connects mouth flange 1, and metal connects the central axes of the through hole central axis and the plastics inner bag 3 of mouth flange 1.
In order to slow down the shearing stress between plastics inner bag 3 and composite structural laminate 4 interfaces, prevent to frustrate, improve the fatigue life of cylinder liner, plastics inner bag 3 is before twining outer layer of composite material construction layer 4, paste the higher rubber layer 2 of one deck shear modulus in its gamut or in its end socket subrange, thickness is between the 0.5-2mm.
Gas cylinder outer surface protective layer 5 can adopt two kinds of forms: a kind ofly be the coating of polyamine resin system, and another kind of for twining the composite layer of one deck carbon fiber.These two kinds of materials can both be prevented fires, protection against the tide, and acid-proof, alkali, salt, antistatic guarantees the safe handling of gas cylinder under the condition of various proper functioning.
When plastics inner bag 3 adopted the moulding of rotational moulding method, its end socket profile can be standard spheroid face, three-core garden profile, isostension end socket profile or ball-type face.Easily manufactured and utilize composite structural laminate 4 Wrapping formed convenience for the mould of inner bag 3 rotationally moldings, present embodiment adopts the standard spheroid end socket.
Referring to accompanying drawing 2,3,4, metal connects the dual mode that is connected with of mouth flange 1 and plastics inner bag 3: a kind of is in plastics inner bag 3 forming processes, and metal is connect on the end socket that mouth flange 1 directly is embedded in inner bag 3, as shown in Figure 2.Another kind of mode is when rotational moulding inner bag 3, on the end socket of two ends, precasts the screw column of evagination, as shown in Figure 3, again the metal that processes is connect mouth flange 1 by being threaded togather, as shown in Figure 4.The connection of above dual mode has guaranteed the tightness and the soundness that is connected of plastics inner bag 3.
Because the Young's modulus of metal and plastics differs bigger, two kinds of material junction stiffness are discontinuous, therefore, when the design metal connects mouth flange 1, consideration inner bag 3 is pressed the stress distribution of rear head in being subjected to, mild transition of proof stress and finished product gas cylinder are being subjected under the inner high voltage, and metal connects mouth flange 1 and is not extruded, so metal connects the shoulder breadth of mouth flange 1 than designing between 1.5-2mm.The shoulder outer mold surface that metal connects mouth flange 1 is consistent with end socket outer mold surface curvilinear equation, and profile is the thickness attenuate gradually from the neck root to the shoulder breadth edge in it.
For fatigue life of guaranteeing gas cylinder greater than 10000 times, the present invention has adopted the Intensity Design based on netting theory in the design of composite structural laminate 4, finite element stress analysis and analysis of fatigue are the comprehensive designing method of assisting.Satisfying on the basis of static strength, carry out the stress analysis of finite element, each point stress branch and size under the evaluation work pressure, the stress during again with material failure is compared, and ratio is taken as δ, is defined as stress axis.Size and fatigue curve according to stress ratio are found fatigue life, if the less than 10000 times fatigue life at which position by increasing the composite material stiffness at this position, reduces distortion so, reduce stress, improve fatigue life.
When making gas cylinder, at first the processing metal flange 1, and material is 45 steel, quenching with Subsequent tempering; Utilize rotational molding technique rolling plastics inner bag 3 again, its thickness is 1-7mm, in the rolling process, metal flange 1 directly is embedded in 3 liang of end socket ends of inner bag, or go out the column screw thread in two end socket end rollings, the metal flange 1 that processes is linked together by section's convex thread; Paste rubber layer at outer surface or whole inner bag 3 outer surfaces then, its thickness is 0.5-2mm; Afterwards continuous fiber (glass, aramid fiber, carbon fiber or mixed fibre) is immersed in middle temperature (60 °~90 °) curing epoxy resin adhesive wet method wound composite construction layer; With temperature (60 °~90 °) solidifying in the composite structural laminate, outside gas cylinder, twine the composite material protective layer of one deck carbon fiber again, or coat the protective layer of polyamine resin system.
The present invention compared with prior art has following advantage:
1. adopt low-density, high performance nonmetallic materials-plastics as inner bag, with low-density, high-performance Composite make structure sheaf, gas cylinder is coated with the full composite material gas cylinder of protective layer, so gas cylinder itself Quality light (heavily about 35Kg), durable and the inner bag manufacturing process is simple, one-shot forming has reduced production cost.
2. the present invention has adopted epoxy resin, intermediate temperature setting prescription, wet winding technology technology in manufacturing. Properties of Epoxy Resin is good, low price; Intermediate temperature setting, energy savings; Wet Winding Process twines with dry method to be compared, Reduced by a procedure, improved production efficiency, reduced production cost.
3. good and static strength and fatigue strength height of air-tightness of the present invention. When carrying out the hydraulic pressure fatigue test, After times of fatigue 10000, air-tightness is intact, and inspection is depressed into 85% of design burst pressure, pressurize 5 minutes, Do not have unusual.

Claims (6)

1; a kind of full compound material gas cylinder for vehicle use compressed natural gas; comprise the plastics inner bag; be wrapped in the outer composite structural laminate of plastics inner bag; be coated on the fire prevention that has of composite structural laminate outer surface; moistureproof; acid-proof; alkali; salt; the protective layer of antistatic and the metal that is connected on end socket air outlet, plastics inner bag two ends respectively connect the mouth flange; it is characterized in that: above-mentioned metal mouth flange all has through hole; the central axes of its through hole central axis and plastics inner bag, and end socket air outlet, above-mentioned plastics inner bag two ends place connects with above-mentioned metal that the mouth flange directly is embedded in or by being threaded togather.
2, full composite material gas cylinder according to claim 1 is characterized in that: the composite layer of the coating that above-mentioned gas cylinder outer surface protective layer is one deck polyamine resin system or winding one deck carbon fiber.
3, full composite material gas cylinder according to claim 1 is characterized in that: above-mentioned plastics liner end enclosure profile is standard spheroid profile or three-core garden profile or isostension profile or ball-type face.
4, full composite material gas cylinder according to claim 1 is characterized in that: the wall thickness of above-mentioned plastics inner bag is 1-7mm.
5, full composite material gas cylinder according to claim 1, it is characterized in that: above-mentioned metal connects the shoulder breadth of mouth flange than between 1.5-2mm, its outer mold surface is consistent with plastics liner end enclosure outer mold surface curvilinear equation, and profile is the thickness attenuate gradually from the neck root to the shoulder breadth edge in it.
6, a kind of method of making the described full composite material gas cylinder of claim 1 is characterized in that: comprise the following steps:
(1) Design and Machining of metal flange;
(2) rolling of plastics inner bag;
(3) in the rolling process, metal flange directly is embedded in inner bag two end socket ends, or goes out the column screw thread in two end socket end rollings, the metal flange that processes is linked together by convex thread;
(4) continuous fiber soaks the epoxy resin glue of intermediate temperature setting, wet method wound composite construction layer;
(5) intermediate temperature setting of composite structural laminate;
(6) system of covering of gas cylinder external protection.
CN97103911A 1997-04-15 1997-04-15 Full compound material gas cylinder for vehicle use compressed natural gas and manufacturing method thereof Expired - Fee Related CN1084862C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN97103911A CN1084862C (en) 1997-04-15 1997-04-15 Full compound material gas cylinder for vehicle use compressed natural gas and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN97103911A CN1084862C (en) 1997-04-15 1997-04-15 Full compound material gas cylinder for vehicle use compressed natural gas and manufacturing method thereof

Publications (2)

Publication Number Publication Date
CN1196462A CN1196462A (en) 1998-10-21
CN1084862C true CN1084862C (en) 2002-05-15

Family

ID=5166978

Family Applications (1)

Application Number Title Priority Date Filing Date
CN97103911A Expired - Fee Related CN1084862C (en) 1997-04-15 1997-04-15 Full compound material gas cylinder for vehicle use compressed natural gas and manufacturing method thereof

Country Status (1)

Country Link
CN (1) CN1084862C (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4457359B2 (en) * 2006-12-13 2010-04-28 トヨタ自動車株式会社 Pressure vessel
CN101318291B (en) * 2008-06-27 2010-06-16 重庆理工大学 Automatic processing product line for source nipple of gas cylinder
CN102182910A (en) * 2011-04-07 2011-09-14 杭州余杭獐山钢瓶有限公司 Gas cylinder with fully-wound plastic liner and molding technology thereof
CN104421606A (en) * 2013-08-23 2015-03-18 刘建华 Glass reinforced plastic fuel gas storage tank
CN103994319B (en) * 2013-11-19 2016-03-02 上海复合材料科技有限公司 Thin-wall metal liner fiber is wound around winding and the solidification method of lightweight gas cylinder entirely
CN105643961A (en) * 2016-01-08 2016-06-08 武汉理工大学 External pressure resistance composite material cylinder body and metal end socket co-curing connecting structure and manufacturing method thereof
CN106863863A (en) * 2017-02-17 2017-06-20 安徽绿动能源有限公司 A kind of fiber winds the manufacture method of plastic inner container composite cylinder entirely
CN107339599A (en) * 2017-08-11 2017-11-10 天津安易达复合气瓶有限公司 A kind of nonmetallic inner bag winds composite cylinder and its manufacture method entirely
CN107461600A (en) * 2017-09-30 2017-12-12 安徽绿动能源有限公司 Overall plastic composite high pressure gas cylinder manufacture method
CN108656499B (en) * 2018-04-24 2020-06-16 亚普汽车部件股份有限公司 End socket structure of IV-type gas cylinder and lining forming method
JP7135727B2 (en) * 2018-10-30 2022-09-13 トヨタ自動車株式会社 high pressure tank
CN109210365B (en) * 2018-10-30 2020-12-29 亚普汽车部件股份有限公司 Sealing structure of high-pressure composite container and high-pressure composite container
CN109469816B (en) * 2018-12-25 2021-01-22 北华航天工业学院 Composite material shell and preparation method thereof
CN111779965B (en) * 2019-04-09 2022-03-25 石家庄安瑞科气体机械有限公司 Composite gas cylinder and forming method thereof
CN112524472A (en) * 2019-09-17 2021-03-19 彭志军 Built-in ultrasonic auxiliary gas outlet hydrogen tank device
CN111174083B (en) * 2019-12-27 2021-12-28 东南大学 High-pressure composite gas cylinder
CN113566108A (en) * 2020-04-28 2021-10-29 未势能源科技有限公司 Valve seat of gas cylinder with fully-wound non-metal liner and gas cylinder with fully-wound non-metal liner
CN113958860A (en) * 2020-07-05 2022-01-21 北京天海工业有限公司 Plastic inner container of vehicular wound gas cylinder and processing method
CN111963890B (en) 2020-08-28 2022-07-15 亚普汽车部件股份有限公司 High-pressure composite container
CN112303478B (en) * 2020-10-30 2022-05-03 陕西碳能新材料有限责任公司 Fireproof flame-retardant vehicle-mounted high-pressure hydrogen storage cylinder and manufacturing method thereof
CN115076600A (en) * 2022-06-16 2022-09-20 江苏国富氢能技术装备股份有限公司 Bottleneck structure of high-pressure hydrogen bottle plastic inner container

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1031273A (en) * 1987-07-21 1989-02-22 卡劳得·里昂·安伯特 Fluid container and method for manufacturing the same
CN2312400Y (en) * 1997-04-15 1999-03-31 中国航天工业总公司第四研究院第四十三研究所 Full composite material bottle for compressed natural gas for automobiles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1031273A (en) * 1987-07-21 1989-02-22 卡劳得·里昂·安伯特 Fluid container and method for manufacturing the same
CN2312400Y (en) * 1997-04-15 1999-03-31 中国航天工业总公司第四研究院第四十三研究所 Full composite material bottle for compressed natural gas for automobiles

Also Published As

Publication number Publication date
CN1196462A (en) 1998-10-21

Similar Documents

Publication Publication Date Title
CN1084862C (en) Full compound material gas cylinder for vehicle use compressed natural gas and manufacturing method thereof
JP4875915B2 (en) Pressure vessel
CN108005846B (en) Main bearing beam and hybrid wing spar composite wind power blade for large wind power blade and preparation method thereof
CN101029707A (en) Circular winding layer reinforced CNG air bottle of steel lining fibre material for vehicle and its production
CN111188991A (en) Carbon fiber fully-wound gas cylinder with plastic inner container and manufacturing method thereof
US20150316207A1 (en) Composite Pressure Vessel Integrated Mandrel
CN101614184B (en) Blade insert
CN107326806A (en) Rigid-flexible combined composite main cable protection system
CN110566569A (en) Manufacturing method of lightweight joint with rubber metal spherical hinge
CN109681770B (en) Storage and transportation gas cylinder with fiber wound plastic liner and manufacturing method thereof
CN2312400Y (en) Full composite material bottle for compressed natural gas for automobiles
CN114667407A (en) Pressure vessel
CN206145427U (en) Gas cylinder with plastic -aluminum integrated configuration inner bag
CN113970060B (en) Intelligent monitoring basalt fiber gas cylinder
CN102218825A (en) Preparation process of interiorly-painted quantized composite material of unmanned plane
CN112664820B (en) Composite flange for spacecraft composite material pressure vessel and manufacturing method thereof
CN112412658B (en) Combined core mold with medicine winding function
CN1956883A (en) Window frame for aircraft
CN1523258A (en) Composite pressure container
CN2649929Y (en) Filament wound composite material pressure vessel
CN107327437B (en) Composite material hydraulic cylinder body with filling framework and manufacturing method thereof
CN202573752U (en) Edge covering skylight glass without refraction on surface
KR102432512B1 (en) High-pressure gas storage tank with multiple pressurized nozzle boss
CN110239111A (en) A kind of composite material tube body and connector integrated molding method
CN207657810U (en) A kind of fiber winding enhancing full plastic automobile brake apparatus gas receiver

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee