JP2021121750A - 高圧タンクの製造方法 - Google Patents
高圧タンクの製造方法 Download PDFInfo
- Publication number
- JP2021121750A JP2021121750A JP2020014969A JP2020014969A JP2021121750A JP 2021121750 A JP2021121750 A JP 2021121750A JP 2020014969 A JP2020014969 A JP 2020014969A JP 2020014969 A JP2020014969 A JP 2020014969A JP 2021121750 A JP2021121750 A JP 2021121750A
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- JP
- Japan
- Prior art keywords
- liner
- tubular member
- body portion
- resin
- dome
- 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.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/38—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor by liberation of internal stresses
- B29C63/46—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor by liberation of internal stresses of internal surfaces
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- 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
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- F17C1/02—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge involving reinforcing arrangements
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- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
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- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
-
- 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
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
- F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, 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
- F17C2223/03—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
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0165—Applications for fluid transport or storage on the road
- F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
- F17C2270/0178—Cars
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0165—Applications for fluid transport or storage on the road
- F17C2270/0184—Fuel cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
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- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Pressure Vessels And Lids Thereof (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
Description
図1および図2に示すように、高圧タンク1は、両端がドーム状に丸みを帯びた略円筒形状の高圧ガス貯蔵容器である。高圧タンク1は、ガスバリア性を有するライナー2と、ライナー2の外面を覆う繊維強化樹脂からなる補強部3と、を備える。補強部3は、ライナー2の外面を覆う第1補強層30と、第1補強層30の外面を覆う第2補強層34と、を有する。高圧タンク1の一方端には、開口部が形成されており、開口部周辺には口金4が取り付けられている。なお、第1補強層30が、本発明でいう「補強層」に相当する。
次に、本発明の一実施形態に係る高圧タンク1の製造方法について説明する。図3は、高圧タンク1の製造方法の工程を説明するフロー図である。高圧タンク1の製造方法は、図3に示すように、準備工程S1と、収縮工程S2と、挿入工程S3と、嵌合工程S4と、接合工程S5と、第2補強層形成工程S6とを含んでいる。
準備工程S1は、ライナー2と、第1補強層30となる筒部材31および2つのドーム部材32、33と、を準備する。なお、この準備工程S1では、後述するように、ライナー2の胴体部21の外径D1が、筒部材31の内径D2よりも大きい寸法関係を満たすライナー2および筒部材31を準備する。まず、準備する2つのドーム部材32、33の形成方法について以下に説明する。
図5に示すドーム部材32、33の形成方法では、図4に示すように、たとえばフィラメントワインディング法(FW法)により、樹脂が含浸された繊維束F1をマンドレル100の外面に巻回する。具体的には、マンドレル100は、本体部101と、本体部101の一端から外側に延在するシャフト部102と、を有する。
図6に示すように、たとえば、円柱状のマンドレル200の外面に、繊維シートF2を巻き付けることによって、筒部材31を形成する。マンドレル200の外径は、筒部材31の内径D2に相当する外径である。マンドレル200の材質は、特に限定されるものではないが、繊維シートF2を貼り付ける際に変形しない強度を確保するためには、金属であることが好ましい。
図7に示すように、ライナー2の胴体部21の外径D1が、筒部材31の内径D2よりも大きいライナー2を形成する。具体的には、胴体部21に相当する胴体部材(図示せず)と側端部22、23に相当する2つの側端部材(図示せず)を準備する。側端部22に対応するドーム状の側端部材には、その頂部に開口部22aが形成され、この開口部22aに円筒状の管状部22bが形成されている。
収縮工程S2では、ライナー2を冷却することにより、ライナー2を収縮させる。具体的には、収縮工程S2において、図8に示すように、ライナー2の胴体部21の外径D1が、筒部材31の内径D2よりも小さくなる温度(具体的には室温よりも低い温度)まで、ライナー2を冷却する。
挿入工程S3では、図8に示すように、収縮工程S2で収縮した状態のライナー2の胴体部21を筒部材31で覆う位置まで、ライナー2を筒部材31に挿入する。収縮工程S2で、ライナー2の胴体部21の外径D1が筒部材31の内径D2よりも小さくなるようにライナー2を収縮させたので、ライナー2を筒部材31に簡単に挿入することができる。
嵌合工程S4では、図9および図10に示すように、筒部材31に挿入したライナー2を、収縮工程S2による冷却前の温度まで昇温することにより、収縮した状態のライナー2を膨張させて、胴体部21に筒部材31を嵌合させる。
接合工程S5では、図11および図12に示すように、ドーム部材32、33で、ライナー2の側端部22、23を覆うように、胴体部21に嵌合した筒部材31の各周端部31a、31aに、ドーム部材32、33の周端部32a、33aを接合して、第1補強層30を形成する。
第2補強層形成工程S6では、図1に示すように、第1補強層30の外面を覆うように、繊維強化樹脂からなる第2補強層34を形成する。これにより、第1補強層30および第2補強層34を有する補強部3を形成することができる。
Claims (4)
- 筒状の胴体部と、前記胴体部の両側に形成されたドーム状の側端部とを有するライナーの外面に、繊維強化樹脂からなる補強層が形成された高圧タンクの製造方法であって、
前記ライナーと、前記補強層となる筒部材および2つのドーム部材と、を準備する工程と、
前記ライナーを冷却することにより、前記ライナーを収縮させる工程と、
収縮した状態の前記ライナーの前記胴体部を前記筒部材で覆う位置まで、前記ライナーを前記筒部材に挿入する工程と、
前記筒部材に挿入した前記ライナーを冷却前の温度まで昇温することにより、収縮した状態の前記ライナーを膨張させて、前記胴体部に前記筒部材を嵌合させる工程と、
前記ドーム部材で前記側端部を覆うように、前記胴体部に嵌合した前記筒部材の各周端部に、前記ドーム部材の周端部を接合して、前記補強層を形成する工程と、を少なくとも含むことを特徴とする高圧タンクの製造方法。 - 前記ライナーの前記胴体部および前記筒部材は円筒状であり、
前記準備する工程において、前記ライナーの前記胴体部の外径が、前記筒部材の内径よりも大きい寸法関係を満たす前記ライナーおよび前記筒部材を準備し、
前記収縮させる工程において、前記ライナーの前記胴体部の外径が、前記筒部材の内径よりも小さくなる温度まで、前記ライナーを冷却し、
前記嵌合させる工程において、前記寸法関係を満たす前記冷却前の温度まで、前記ライナーを昇温することを特徴とする請求項1に記載の高圧タンクの製造方法。 - 前記準備する工程において、前記ライナーの昇温の完了後に、前記筒部材から前記ライナーの前記胴体部に押圧する圧力が、前記ライナーの材料の降伏応力よりも小さくなるように、前記胴体部の外径と、前記筒部材の内径とを設定することを特徴とする請求項2に記載の高圧タンクの製造方法。
- 前記ライナーは、熱可塑性樹脂からなることを特徴とする請求項1〜3のいずれか一項に記載の高圧タンクの製造方法。
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JP7338583B2 (ja) | 2020-07-31 | 2023-09-05 | トヨタ自動車株式会社 | 高圧タンクの製造方法 |
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