JP5581295B2 - Pressure vessel - Google Patents

Pressure vessel Download PDF

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JP5581295B2
JP5581295B2 JP2011229388A JP2011229388A JP5581295B2 JP 5581295 B2 JP5581295 B2 JP 5581295B2 JP 2011229388 A JP2011229388 A JP 2011229388A JP 2011229388 A JP2011229388 A JP 2011229388A JP 5581295 B2 JP5581295 B2 JP 5581295B2
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base member
pressure vessel
valve
rising wall
resin liner
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JP2013036603A (en
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和広 中村
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Yachiyo Industry Co Ltd
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Yachiyo Industry Co Ltd
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Priority to JP2011229388A priority Critical patent/JP5581295B2/en
Priority to PCT/JP2012/067202 priority patent/WO2013008719A1/en
Priority to CN201280034298.7A priority patent/CN103703298B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J12/00—Pressure vessels in general
    • 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
    • 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
    • F17C2201/05—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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/058—Size portable (<30 l)
    • 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
    • F17C2203/0604—Liners
    • 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
    • F17C2203/0619—Single wall with two 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
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/21—Shaping processes
    • F17C2209/2109—Moulding
    • F17C2209/2127—Moulding by blowing
    • 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
    • F17C2209/2154—Winding
    • 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
    • F17C2209/227—Assembling processes by adhesive means
    • 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
    • F17C2221/035—Propane butane, 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
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/012—Reducing weight
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/03—Dealing with losses
    • F17C2260/035—Dealing with losses of fluid
    • F17C2260/036—Avoiding leaks

Description

本発明は、気体又は液体を貯留する圧力容器に関する。   The present invention relates to a pressure vessel that stores gas or liquid.

液化石油ガス（Liquefied petroleum gas）は、ブタン、プロパンなどを主成分とし、圧縮することにより常温で容易に液化できる気体燃料として知られている。ＬＰＧを液化することで、その体積は気化ガス時の２５０分の１になり、耐圧の低い圧力で貯蔵や輸送が可能となる。ＬＰＧを貯蔵する材料としては、これまでは一般に、スチール製やアルミニウム合金製の圧力容器が採用されてきた。しかし、金属製の圧力容器は、強度が高く、信頼性が高い利点を有するが、重量が重くなるという問題があった。   Liquefied petroleum gas is known as a gaseous fuel that is mainly composed of butane, propane, etc. and can be easily liquefied at room temperature by compression. By liquefying LPG, its volume becomes 1/250 that of vaporized gas, and storage and transportation are possible at a low pressure. As a material for storing LPG, a pressure vessel made of steel or aluminum alloy has been generally used so far. However, the metal pressure vessel has the advantages of high strength and high reliability, but there is a problem that the weight increases.

このような問題点に鑑み、近年では、圧力容器の軽量化を目的として、合成樹脂製の薄肉容器（樹脂ライナー）を、樹脂が含浸された繊維強化層で被い、その後樹脂を硬化させる複合構造の圧力容器が提案されている。例えば特許文献１に記載の圧力容器は、樹脂ライナーと、この樹脂ライナーの外面を補強する繊維強化樹脂層（ＦＲＰ層）と、樹脂ライナー及び繊維強化樹脂層の外側に突出し、ＬＰＧの注排口となる金属製の口金部材とで構成されている。口金部材の筒部の内周面には例えば雌ネジが形成されており、この雌ネジにバルブを締結して、バルブから圧力容器の内部のＬＰＧを注排する。   In view of such problems, in recent years, for the purpose of reducing the weight of pressure vessels, a synthetic resin thin container (resin liner) is covered with a fiber reinforced layer impregnated with resin, and then the resin is cured. Structured pressure vessels have been proposed. For example, a pressure vessel described in Patent Document 1 projects a resin liner, a fiber reinforced resin layer (FRP layer) that reinforces the outer surface of the resin liner, and protrudes outside the resin liner and the fiber reinforced resin layer. And a metal base member. For example, a female screw is formed on the inner peripheral surface of the cylindrical portion of the base member. A valve is fastened to the female screw, and LPG inside the pressure vessel is poured out from the valve.

特開２００７−１０００４号公報JP 2007-10004 A

樹脂ライナーと口金部材とは材料が異なるため、これらの部材を気体や液体がリークしないように隙間なく接合することは容易ではない。一方で、リークしないようにシール構造を複雑化させると、製造作業が煩雑になったり、製造コストが増加したりするという問題がある。また、シール構造が複雑化すると、メンテナンスやシール部分の管理も困難になる。   Since the resin liner and the base member are made of different materials, it is not easy to join these members without gaps so that gas and liquid do not leak. On the other hand, if the seal structure is complicated so as not to leak, the manufacturing work becomes complicated and the manufacturing cost increases. Further, when the seal structure is complicated, maintenance and management of the seal portion become difficult.

本発明はこのような課題を解決するために創作されたものであり、簡易な構造で確実にシールすることができる圧力容器を提供することを課題とする。   The present invention has been created to solve such problems, and an object of the present invention is to provide a pressure vessel that can be reliably sealed with a simple structure.

前記課題を解決するため、本発明は、突出するネック部を備え、気体又は液体を収容する中空の樹脂ライナーと、前記ネック部の内側に取り付けられた口金部材と、前記口金部材の内側に取り付けられたバルブと、前記樹脂ライナーと前記バルブとの間に設けられたシール部材と、を有する圧力容器であって、前記ネック部は、筒状を呈する筒部と、前記筒部の上端に設けられ前記シール部材を取り付ける取付座面と、前記取付座面の外側に立ち上がる立上り壁と、を有し、前記シール部材は、前記バルブの一部及び前記取付座面に当接していることを特徴とする。   In order to solve the above-described problems, the present invention provides a hollow resin liner that includes a protruding neck portion and accommodates a gas or a liquid, a base member attached to the inside of the neck portion, and attached to the inside of the base member. A pressure vessel, and a seal member provided between the resin liner and the valve, wherein the neck portion is provided in a cylindrical shape and an upper end of the cylindrical portion. A mounting seat surface to which the seal member is attached and a rising wall that rises outside the mounting seat surface, the seal member being in contact with a part of the valve and the mounting seat surface. And

かかる構成によれば、シール部材を樹脂ライナーの取付座面とバルブとの間に介設するだけで気体又は液体のリークを確実に防ぐことができる。また、取付座面の外側に立上り壁を設けたことにより、シール部材の取付性を向上させることができる。また、立上り壁を設けたことにより、圧力容器に内圧が作用した際に、シール部材がはみ出るのを防ぐことができる。また、樹脂ライナーとバルブとの間にシール部材を介設しているため、バルブを外せばシール部材を視認できる。これにより、メンテナンスやシール部分の管理が容易になる。   According to such a configuration, it is possible to reliably prevent leakage of gas or liquid simply by providing the seal member between the mounting seat surface of the resin liner and the valve. In addition, by providing the rising wall on the outer side of the mounting seat surface, the mounting performance of the seal member can be improved. Further, by providing the rising wall, it is possible to prevent the seal member from protruding when the internal pressure acts on the pressure vessel. Moreover, since the sealing member is interposed between the resin liner and the valve, the sealing member can be visually recognized by removing the valve. This facilitates maintenance and management of the seal portion.

また、本発明は、突出するネック部を備え、気体又は液体を収容する中空の樹脂ライナーと、前記ネック部の内側に取り付けられた口金部材と、前記口金部材の内側に取り付けられた補助部材と、前記補助部材の内側に取り付けられたバルブと、前記樹脂ライナーと前記補助部材との間に設けられたシール部材と、を有する圧力容器であって、前記ネック部は、筒状を呈する筒部と、前記筒部の上端に設けられ前記シール部材を取り付ける取付座面と、前記取付座面の外側に立ち上がる立上り壁と、を有し、前記シール部材は、前記補助部材の一部及び前記取付座面に当接していることを特徴とする。   The present invention also includes a hollow resin liner having a protruding neck portion and containing gas or liquid, a base member attached to the inside of the neck portion, and an auxiliary member attached to the inside of the base member. A pressure vessel having a valve attached to the inside of the auxiliary member and a seal member provided between the resin liner and the auxiliary member, wherein the neck portion has a cylindrical shape A mounting seat surface that is provided at an upper end of the cylindrical portion and attaches the seal member; and a rising wall that rises outside the mounting seat surface, wherein the seal member includes a part of the auxiliary member and the mounting portion. It is in contact with the seating surface.

かかる構成によれば、シール部材を樹脂ライナーの取付座面と補助部材との間に介設するだけで気体又は液体のリークを確実に防ぐことができる。また、口金部材とバルブの間に補助部材を設けることにより、様々な種類のバルブに対応することができる。また、取付座面の外側に立上り壁を設けたことにより、シール部材の取付性を向上させることができる。また、立上り壁を設けたことにより、圧力容器に内圧が作用した際に、シール部材がはみ出るのを防ぐことができる。また、樹脂ライナーとバルブとの間にシール部材を介設しているため、バルブ及び補助部材を外せばシール部材を視認できる。これにより、メンテナンスやシール部分の管理が容易になる。   According to such a configuration, it is possible to reliably prevent the leakage of gas or liquid only by interposing the seal member between the mounting seat surface of the resin liner and the auxiliary member. Further, by providing an auxiliary member between the base member and the valve, various types of valves can be handled. In addition, by providing the rising wall on the outer side of the mounting seat surface, the mounting performance of the seal member can be improved. Further, by providing the rising wall, it is possible to prevent the seal member from protruding when the internal pressure acts on the pressure vessel. Moreover, since the sealing member is interposed between the resin liner and the valve, the sealing member can be visually recognized by removing the valve and the auxiliary member. This facilitates maintenance and management of the seal portion.

また、前記口金部材は、リング状のフランジ部と、前記フランジ部の内周に突出する筒状の突出部と、を有し、前記突出部の外周には、半径方向に延設された大径部が設けられており、前記取付座面の下に前記大径部が配置されていることが好ましい。   Further, the base member has a ring-shaped flange portion and a cylindrical projecting portion projecting to the inner periphery of the flange portion, and the outer periphery of the projecting portion is extended in a radial direction. It is preferable that a diameter portion is provided and the large diameter portion is disposed under the mounting seat surface.

かかる構成によれば、樹脂製の取付座面が金属製の口金部材の大径部で支持されているため、取付座面の強度を向上させることができる。これにより、シール部分の耐久性を向上させることができる。   According to this configuration, since the resin mounting seat surface is supported by the large-diameter portion of the metal base member, the strength of the mounting seat surface can be improved. Thereby, durability of a seal part can be improved.

また、前記バルブは、前記口金部に接合される本体筒部と、前記本体筒部から外側に張り出し、前記立上り壁の上端及び前記口金部材の上端を覆う押え部を有し、前記押え部には、前記立上り壁の外側に配置されたサポート部が延設されていることが好ましい。   In addition, the valve includes a main body cylinder portion joined to the base portion, a presser portion that projects outward from the main body cylinder portion and covers an upper end of the rising wall and an upper end of the base member, and the presser portion includes It is preferable that a support portion arranged outside the rising wall is extended.

かかる構成によれば、立上り壁の外側にサポート部が配置されるため、樹脂ライナーに内圧が作用した際に、立上り壁や筒部が外側に倒れるのを防ぐことができる。   According to such a configuration, since the support portion is disposed outside the rising wall, it is possible to prevent the rising wall and the cylindrical portion from falling outside when an internal pressure is applied to the resin liner.

また、前記補助部材は、前記口金部材に接合されるとともに前記バルブが取り付けられる基部と、前記基部から外側に張り出し、前記立上り壁の上端及び前記口金部材の上端を覆う押え部を有し、前記押え部には、前記前記立上り壁の外側に配置されたサポート部が延設されていることが好ましい。   In addition, the auxiliary member has a base portion that is joined to the base member and to which the valve is attached, and has a pressing portion that projects outward from the base portion and covers the upper end of the rising wall and the upper end of the base member, It is preferable that a support portion disposed outside the rising wall is extended to the presser portion.

かかる構成によれば、補助部材を用いた場合であっても、立上り壁の外側にサポート部が配置されるため、樹脂ライナーに内圧が作用した際に、立上り壁や筒部が外側に倒れるのを防ぐことができる。   According to such a configuration, even when the auxiliary member is used, the support portion is disposed outside the rising wall, so that when the internal pressure is applied to the resin liner, the rising wall or the cylindrical portion falls outside. Can be prevented.

また、前記口金部材の外周に、凹溝が設けられており、前記凹溝に前記樹脂ライナーを構成する樹脂が充填されていることが好ましい。かかる構成によれば、樹脂ライナーに対する口金部材の回転を規制することができるため、樹脂ライナーと口金部材との結合性を高めることができる。   Moreover, it is preferable that the outer periphery of the base member is provided with a concave groove, and the concave groove is filled with a resin constituting the resin liner. According to this configuration, since the rotation of the base member with respect to the resin liner can be restricted, the bondability between the resin liner and the base member can be improved.

また、前記口金部材と前記樹脂ライナーとの間に粉体塗装による塗膜が形成されていることが好ましい。かかる構成によれば、口金部材と樹脂ライナーとの結合性を高めることができる。   Moreover, it is preferable that the coating film by powder coating is formed between the said base member and the said resin liner. According to such a configuration, the bondability between the base member and the resin liner can be enhanced.

本発明に係る圧力容器によれば、簡易な構造で確実にシールすることができる。   The pressure vessel according to the present invention can be reliably sealed with a simple structure.

第一実施形態に係る圧力容器を示す一部破断側断面図である。It is a partially broken side sectional view showing a pressure vessel concerning a first embodiment. 第一実施形態に係る圧力容器を示す要部拡大側断面図である。It is a principal part expanded sectional side view which shows the pressure vessel which concerns on 1st embodiment. 第一実施形態に係る口金部材を示した図であって、（ａ）は斜視図、（ｂ）は平面図である。It is the figure which showed the nozzle | cap | die member which concerns on 1st embodiment, Comprising: (a) is a perspective view, (b) is a top view. 図２のＡ−Ａ断面図である。It is AA sectional drawing of FIG. 第一実施形態に係る圧力容器の製造方法の口金部材保持工程を示した模式断面図である。It is the schematic cross section which showed the nozzle | cap | die member holding process of the manufacturing method of the pressure vessel which concerns on 1st embodiment. 第一実施形態に係る圧力容器の製造方法の型締め工程を示した模式断面図である。It is the schematic cross section which showed the clamping process of the manufacturing method of the pressure vessel which concerns on 1st embodiment. 第一実施形態に係る圧力容器の製造方法のブロー工程を示した模式断面図である。It is the schematic cross section which showed the blow process of the manufacturing method of the pressure vessel which concerns on 1st embodiment. 変形例に係る圧力容器を示す要部拡大側断面図である。It is a principal part expanded sectional side view which shows the pressure vessel which concerns on a modification. 第二実施形態に係る圧力容器を示す要部拡大側断面図である。It is a principal part expanded sectional side view which shows the pressure vessel which concerns on 2nd embodiment. 変形例に係る圧力容器を示す要部拡大側断面図である。It is a principal part expanded sectional side view which shows the pressure vessel which concerns on a modification.

［第一実施形態］
本発明の実施形態について図面を参照して詳細に説明する。図１に示すように、本実施形態に係る圧力容器１は、樹脂ライナー２と、樹脂ライナー２の端部に形成された口金部材３と、口金部材３の外周面に形成された塗膜４と、樹脂ライナー２の外周を覆う繊維強化樹脂層５と、口金部材３に取り付けられたバルブ６と、シール部材７とで主に構成されている。圧力容器１は、例えば、内部に液体又は気体を収容することができる容器である。 [First embodiment]
Embodiments of the present invention will be described in detail with reference to the drawings. As shown in FIG. 1, a pressure vessel 1 according to this embodiment includes a resin liner 2, a cap member 3 formed at an end of the resin liner 2, and a coating film 4 formed on the outer peripheral surface of the cap member 3. And a fiber reinforced resin layer 5 covering the outer periphery of the resin liner 2, a valve 6 attached to the cap member 3, and a seal member 7. The pressure vessel 1 is, for example, a vessel that can contain a liquid or a gas inside.

樹脂ライナー２は、図１及び図２に示すように、樹脂製であって内部が中空になっている。樹脂ライナー２の材料は特に制限されないが、収容する気体又は液体の種類や用途に応じて、例えば、ポリエチレン（ＰＥ）、高密度ポリエチレン（ＨＤＰＥ）、ポリアミド、ポリケトン、ポリフェニレンサルフィド（ＰＰＳ）などが用いられる。樹脂ライナー２を樹脂で形成することで、軽量化を図ることができる。   As shown in FIGS. 1 and 2, the resin liner 2 is made of resin and is hollow inside. The material of the resin liner 2 is not particularly limited, but, for example, polyethylene (PE), high-density polyethylene (HDPE), polyamide, polyketone, polyphenylene sulfide (PPS), etc., may be used depending on the type or application of the gas or liquid to be contained. Used. By forming the resin liner 2 with resin, weight reduction can be achieved.

樹脂ライナー２は、本実施形態では、筒状を呈する胴部２ａと、胴部２ａの端部側を構成する曲面を備えた肩部２ｂと、肩部２ｂから中心軸Ｃ方向に向けて突出するネック部２ｃとで構成されている。樹脂ライナー２の形状は、特に制限されるものではなく、例えば、球形であってもよい。   In this embodiment, the resin liner 2 protrudes in the direction of the central axis C from the shoulder 2b having a cylindrical body 2a, a shoulder 2b having a curved surface constituting the end of the body 2a, and the shoulder 2b. And a neck portion 2c. The shape of the resin liner 2 is not particularly limited, and may be a spherical shape, for example.

ネック部２ｃは、図２に示すように、筒部１１と、張出部１２と、立上り壁１３とを備えている。筒部１１は、円筒状を呈し、その内側には口金部材３が取り付けられている。   As shown in FIG. 2, the neck portion 2 c includes a cylinder portion 11, an overhang portion 12, and a rising wall 13. The cylinder portion 11 has a cylindrical shape, and the base member 3 is attached to the inside thereof.

張出部１２は、筒部１１の内面に沿って内側（中心軸Ｃ方向）に張り出している。張出部１２の上面は、シール部材７を取り付ける取付座面１２ａになっている。取付座面１２ａは、パーティングラインの無い平面になっており、平面視リング状に形成されている。   The overhang portion 12 projects inward (in the direction of the central axis C) along the inner surface of the tube portion 11. The upper surface of the overhanging portion 12 is a mounting seat surface 12a to which the seal member 7 is attached. The mounting seat surface 12a is a flat surface without a parting line, and is formed in a ring shape in plan view.

立上り壁１３は、取付座面１２ａの外側に形成されている。立上り壁１３は、筒部１１の上端から上方に突出しており、平面視リング状に形成されている。立上り壁１３の形状は、断面視矩形になっている。   The rising wall 13 is formed outside the mounting seat surface 12a. The rising wall 13 protrudes upward from the upper end of the cylindrical portion 11 and is formed in a ring shape in plan view. The shape of the rising wall 13 is rectangular in a sectional view.

口金部材３は、図２、図３の（ａ）及び（ｂ）に示すように、環状のフランジ部２１と、フランジ部２１に突出した突出部２２とで構成されている。口金部材３は、金属製であって、その内側にバルブ６が取り付けられる。   As shown in FIGS. 2 and 3 (a) and 3 (b), the base member 3 includes an annular flange portion 21 and a protruding portion 22 protruding from the flange portion 21. The base member 3 is made of metal, and a valve 6 is attached to the inside thereof.

フランジ部２１は、リング状を呈する板状部位である。図２に示すように、フランジ部２１の下面と、樹脂ライナー２の肩部２ｂの内面とは略面一になっている。   The flange portion 21 is a plate-like portion having a ring shape. As shown in FIG. 2, the lower surface of the flange portion 21 and the inner surface of the shoulder portion 2 b of the resin liner 2 are substantially flush.

突出部２２の内周面には、バルブ６を取り付けるための雌ネジが形成されている。突出部２２には、半径方向に延設された大径部２３が形成されている。大径部２３の外周は平面視略円形になっている。大径部２３は、樹脂ライナー２のネック部２ｃで覆われる部位である。成形後には、図２に示すように、張出部１２の直下に大径部２３が配置される。   A female screw for attaching the valve 6 is formed on the inner peripheral surface of the protruding portion 22. The projecting portion 22 is formed with a large diameter portion 23 extending in the radial direction. The outer periphery of the large diameter portion 23 is substantially circular in plan view. The large diameter portion 23 is a portion covered with the neck portion 2 c of the resin liner 2. After the molding, as shown in FIG. 2, the large-diameter portion 23 is disposed immediately below the overhang portion 12.

大径部２３の外周面には、周方向において等間隔に複数の凹溝２５が形成されている。凹溝２５は、図４に示すように、樹脂ライナー２を構成する樹脂が充填されることにより、樹脂ライナー２に対する口金部材３の回転を規制するための部位である。凹溝２５は、水平断面が長方形であって、突出部２２の突出方向（注排方向）に沿って延設されている。   A plurality of concave grooves 25 are formed on the outer peripheral surface of the large diameter portion 23 at equal intervals in the circumferential direction. As shown in FIG. 4, the concave groove 25 is a part for restricting the rotation of the base member 3 relative to the resin liner 2 by being filled with the resin constituting the resin liner 2. The concave groove 25 has a rectangular horizontal cross section, and extends along the protruding direction (pouring direction) of the protruding portion 22.

本実施形態では、凹溝２５の上方（突出部２２の突出方向側）が開放されている。これにより、凹溝２５に樹脂を充填する際に、空気が抜けやすいため凹溝２５の内部に空気溜まりができにくい。凹溝２５は、本実施形態では前記したように形成したが、樹脂ライナー２が充填されることで、樹脂ライナー２に対する口金部材３の回転を規制する形状であれば、これに限定されるものではない。例えば、凹溝２５は、少なくとも一つ設けられているだけでもよい。また、本実施形態では、凹溝２５の突出部２２の突出方向側が開放されているが、閉鎖した形状であってもよい。また、凹溝２５は、ディンプルのように丸く繰り抜かれた形状であってもよい。   In the present embodiment, the upper side of the concave groove 25 (the protruding direction side of the protruding portion 22) is opened. As a result, when the groove 25 is filled with resin, air easily escapes, so that it is difficult to retain air inside the groove 25. The concave groove 25 is formed as described above in the present embodiment. However, the concave groove 25 is limited to this shape as long as the resin liner 2 is filled to restrict the rotation of the base member 3 with respect to the resin liner 2. is not. For example, at least one concave groove 25 may be provided. Moreover, in this embodiment, although the protrusion direction side of the protrusion part 22 of the ditch | groove 25 is open | released, the closed shape may be sufficient. The concave groove 25 may have a shape that is rounded out like a dimple.

また、突出部２２には外側に張り出した鍔部２６が形成されている。鍔部２６は、円板状に形成されている。鍔部２６は、樹脂ライナー２を構成する樹脂で覆われることにより、樹脂ライナー２に対する口金部材３の脱落を防止する部位である。   Further, the protruding portion 22 is formed with a flange portion 26 protruding outward. The collar part 26 is formed in a disk shape. The collar portion 26 is a portion that prevents the cap member 3 from falling off the resin liner 2 by being covered with the resin constituting the resin liner 2.

なお、口金部材３は、前記した形状に限定されるものではない。例えば大径部２３、凹溝２５及び鍔部２６は省略してもよい。   The base member 3 is not limited to the shape described above. For example, you may abbreviate | omit the large diameter part 23, the ditch | groove 25, and the collar part 26. FIG.

口金部材３の製造方法は、特に制限されないが、本実施形態では鍛造により一体成形されている。鍛造によれば、凹溝２５を成形する際に切削加工が不要になるため、製造期間や作業を省略することができる。   Although the manufacturing method of the base member 3 is not particularly limited, in the present embodiment, it is integrally formed by forging. According to the forging, the cutting process is not necessary when forming the concave groove 25, so that the manufacturing period and work can be omitted.

塗膜４は、図２に示すように、粉体塗装によって形成されており、例えばポリオレフィン系樹脂からなる接着層である。塗膜４は、樹脂ライナー２と口金部材３とが接触する部分及び凹溝２５の内面に塗布されている。塗膜４が形成されることにより、樹脂ライナー２と口金部材３との接着性（結合性）を向上させることができる。   As shown in FIG. 2, the coating film 4 is formed by powder coating, and is an adhesive layer made of, for example, a polyolefin resin. The coating film 4 is applied to the portion where the resin liner 2 and the base member 3 are in contact with each other and the inner surface of the groove 25. By forming the coating film 4, the adhesiveness (bonding property) between the resin liner 2 and the base member 3 can be improved.

また、粉体塗装を行う前処理として、表面を粗面化することが望ましく、例えば、サンドブラスト、ショットブラスト、化学的な処理剤の塗布等を行ってもよい。また、樹脂ライナー２と口金部材３との結合性を向上させるものであれば他の接着剤で塗膜４を形成しても構わない。   Further, it is desirable to roughen the surface as a pretreatment for performing powder coating. For example, sandblasting, shot blasting, application of a chemical treatment agent, or the like may be performed. Further, the coating film 4 may be formed with another adhesive as long as it improves the bondability between the resin liner 2 and the base member 3.

繊維強化樹脂層５は、ＦＲＰ（繊維強化プラスチック）であり、樹脂ライナー２の外周を覆うように形成されている。繊維強化樹脂層５は、例えば、フィラメントワインディング法、ハンドレイアップ法等によって、樹脂が含浸された織布が積層されることによって設けられている。   The fiber reinforced resin layer 5 is FRP (fiber reinforced plastic) and is formed so as to cover the outer periphery of the resin liner 2. The fiber reinforced resin layer 5 is provided by laminating a woven fabric impregnated with a resin by, for example, a filament winding method, a hand layup method, or the like.

繊維強化樹脂層５に使用される樹脂としては、強度が高いことからエポキシ系樹脂が一般的である。熱的な安定性を求める場合などは、フェノール系樹脂も使用することができる。繊維強化樹脂層５の形成方法については特に制限されないが、繊維の連続性を保つことができるとともに高い強度を容易に実現でき、かつ、薄肉化が図れるフィラメントワインディング法が好ましい。   The resin used for the fiber reinforced resin layer 5 is generally an epoxy resin because of its high strength. In the case where thermal stability is required, a phenolic resin can also be used. The method for forming the fiber reinforced resin layer 5 is not particularly limited, but a filament winding method that can maintain the continuity of the fibers, can easily realize high strength, and can be thinned is preferable.

バルブ６は、図２に示すように、口金部材３の内側に螺合されている。バルブ６は、本体筒部３１と、本体筒部３１の外周から外側に張り出した押え部３２とで構成されている。本体筒部３１の内部には、樹脂ライナー２の内部に連通する連通孔３１ａが形成されている。本体筒部３１の外周には、口金部材３に螺合される雄ネジが形成されている。押え部３２は、円板状に形成されており、シール部材７を覆うようにシール部材７の外径よりも大きい外径で形成されている。本実施形態では、押え部３２は、ネック部２ｃと同等の半径で形成されている。   As shown in FIG. 2, the valve 6 is screwed into the inside of the base member 3. The valve 6 includes a main body cylinder portion 31 and a presser portion 32 that protrudes outward from the outer periphery of the main body cylinder portion 31. A communication hole 31 a communicating with the inside of the resin liner 2 is formed inside the main body cylinder portion 31. A male screw that is screwed into the base member 3 is formed on the outer periphery of the main body cylindrical portion 31. The presser portion 32 is formed in a disc shape and has an outer diameter larger than the outer diameter of the seal member 7 so as to cover the seal member 7. In the present embodiment, the presser portion 32 is formed with a radius equivalent to that of the neck portion 2c.

シール部材７は、Ｏリングであって、取付座面１２ａに取り付けられている。シール部材７は、圧力容器１の内部に貯留された気体又は液体のリークを防ぐ部材である。シール部材７は、本実施形態では、取付座面１２ａと押え部３２の下面３２ａとに当接している。なお、シール部材７は、取付座面１２ａ及び下面３２ａに加えて、口金部材３の突出部２２及び立上り壁１３の内面１３ａの少なくとも一方に当接させてもよい。これにより、気体又は液体のリークをより確実に防ぐことができる。   The seal member 7 is an O-ring and is attached to the attachment seat surface 12a. The seal member 7 is a member that prevents leakage of gas or liquid stored in the pressure vessel 1. In this embodiment, the seal member 7 is in contact with the mounting seat surface 12a and the lower surface 32a of the pressing portion 32. The sealing member 7 may be brought into contact with at least one of the protruding portion 22 of the base member 3 and the inner surface 13a of the rising wall 13 in addition to the mounting seat surface 12a and the lower surface 32a. Thereby, the leak of gas or liquid can be prevented more reliably.

次に、本実施形態に係る圧力容器の製造方法について説明する。圧力容器の製造方法については特に制限されないが、本実施形態ではブロー成形によって製造する場合を例示する。圧力容器の製造方法では、口金部材保持工程と、パリソン供給工程と、型締め工程と、ブロー工程と、繊維強化樹脂層成形工程、部品取付工程を行う。   Next, a method for manufacturing a pressure vessel according to this embodiment will be described. The method for manufacturing the pressure vessel is not particularly limited, but in the present embodiment, a case of manufacturing by blow molding is illustrated. In the pressure vessel manufacturing method, a cap member holding step, a parison supplying step, a mold clamping step, a blowing step, a fiber reinforced resin layer forming step, and a component attaching step are performed.

図５は、本実施形態に係る圧力容器の製造方法の口金部材保持工程を示した模式断面図である。図６は、本実施形態に係る圧力容器の製造方法の型締め工程を示した模式断面図である。図７は、本実施形態に係る圧力容器の製造方法のブロー工程を示した模式断面図である。   FIG. 5 is a schematic cross-sectional view showing a cap member holding step of the method for manufacturing a pressure vessel according to the present embodiment. FIG. 6 is a schematic cross-sectional view showing a mold clamping step of the pressure vessel manufacturing method according to the present embodiment. FIG. 7 is a schematic cross-sectional view showing the blowing process of the pressure vessel manufacturing method according to the present embodiment.

口金部材保持工程では、図５に示すように、口金部材３をブロー装置４１に装着する。口金部材３の表面には粉体塗装が予め施されている。ブロー装置４１は、外筒部４２と、内筒部４３と、ブローピン４４と、ボールＢとで主に構成されている。口金部材３は、口金部材３の突出部２２と外筒部４２の先端とが対向するようにして装着される。ブロー装置４１は、内筒部４３及びブローピン４４を口金部材３の突出部２２に挿入し、ボールＢを外側に押し出すことによりロックされるようになっている。一方、ブローピン４４を縮退させるとボールＢが内側に移動してロックが解除されるようになっている。ブロー装置４１と口金部材３とは、簡易に着脱可能であれば他の構造であってもよい。   In the base member holding step, the base member 3 is mounted on the blow device 41 as shown in FIG. Powder coating is applied to the surface of the base member 3 in advance. The blow device 41 is mainly composed of an outer cylinder part 42, an inner cylinder part 43, a blow pin 44 and a ball B. The base member 3 is mounted such that the protruding portion 22 of the base member 3 and the tip of the outer cylinder portion 42 face each other. The blow device 41 is locked by inserting the inner cylinder portion 43 and the blow pin 44 into the protruding portion 22 of the base member 3 and pushing the ball B outward. On the other hand, when the blow pin 44 is retracted, the ball B moves inward and the lock is released. The blow device 41 and the base member 3 may have other structures as long as they can be easily attached and detached.

外筒部４２は、筒部材であって、先端には平面視リング状の先端面５１が形成されている。また、先端面５１には、平面視リング状に突出した突条５２が形成されている。突条５２は断面視矩形で形成されている。先端面５１の内側には内側先端面５１ａ、外側には外側先端面５１ｂがそれぞれ形成されている。突条５２の内側には突条内面５２ａ、上側には突条天面５２ｂ及び外側には突条外面５２ｃがそれぞれ形成されている。口金部材３の突出部２２は、内筒部４３と突条５２の間に挟持されている。   The outer cylindrical portion 42 is a cylindrical member, and a distal end surface 51 having a ring shape in plan view is formed at the distal end. Further, a protrusion 52 protruding in a ring shape in plan view is formed on the tip surface 51. The protrusion 52 is formed in a rectangular shape in cross section. An inner tip surface 51a is formed inside the tip surface 51, and an outer tip surface 51b is formed outside. A ridge inner surface 52 a is formed on the inner side of the ridge 52, a ridge top surface 52 b is formed on the upper side, and a ridge outer surface 52 c is formed on the outer side. The protruding portion 22 of the base member 3 is sandwiched between the inner tube portion 43 and the protrusion 52.

パリソン供給工程では、口金部材３の外側であり、かつ、後記する第１型Ｋ１と第２型Ｋ２の間に筒状のパリソンＰを供給する。なお、図５及び図６では、説明の便宜上、パリソンの描画を省略している。   In the parison supplying step, a cylindrical parison P is supplied outside the base member 3 and between a first mold K1 and a second mold K2 described later. In FIG. 5 and FIG. 6, drawing of the parison is omitted for convenience of explanation.

型締め工程では、図６に示すように、第１型Ｋ１と第２型Ｋ２とで型締めを行う。第１型Ｋ１の端部の内面Ｋ１ａ及び第２型の端部の内面Ｋ２ａは外筒部４２に密接するように半円状にくり抜かれている。型締めを行うことにより、口金部材３、突条天面５２ｂ、突条外面５２ｃ、外側先端面５１ｂ、第１型Ｋ１の内面Ｋ１ａ及び第２型の内面Ｋ２ａとで囲まれたキャビティが形成される。このキャビティによって樹脂ライナー２のネック部２ｃが成形される。   In the mold clamping process, as shown in FIG. 6, mold clamping is performed with the first mold K1 and the second mold K2. The inner surface K1a at the end portion of the first mold K1 and the inner surface K2a at the end portion of the second mold are cut out in a semicircular shape so as to be in close contact with the outer cylinder portion. By performing mold clamping, a cavity surrounded by the base member 3, the ridge top surface 52b, the ridge outer surface 52c, the outer front end surface 51b, the inner surface K1a of the first mold K1 and the inner surface K2a of the second mold is formed. The The neck portion 2c of the resin liner 2 is formed by this cavity.

ブロー工程では、図７に示すように、ブローピン４４に空気を供給して、パリソンＰを第１型Ｋ１及び第２型Ｋ２に転写させる。パリソンＰは、溶融した樹脂であって、後に樹脂ライナー２となる材料である。ブロー成形の際の空気の圧力によって、パリソンＰが流動し、前記したキャビティにパリソンＰが確実に充填される。   In the blowing step, as shown in FIG. 7, air is supplied to the blow pins 44 to transfer the parison P to the first mold K1 and the second mold K2. The parison P is a molten resin and is a material that will later become the resin liner 2. The parison P flows by the pressure of the air during blow molding, and the parison P is reliably filled in the cavity.

ブローが終了したら、ブローピン４４を第１型Ｋ１及び第２型Ｋ２の外部に縮退させて、脱型する。これにより、樹脂ライナー２と口金部材３とが一体化された複合部材が形成される。   When the blow is completed, the blow pin 44 is retracted to the outside of the first mold K1 and the second mold K2, and is removed from the mold. Thereby, a composite member in which the resin liner 2 and the base member 3 are integrated is formed.

繊維強化樹脂層成形工程では、具体的な図示は省略するが、例えば、ブロー工程で成形された複合部材について、フィラメントワインディング法により、樹脂ライナー２の外周に、繊維強化樹脂層５を形成する。   In the fiber reinforced resin layer forming step, although not specifically illustrated, for example, the fiber reinforced resin layer 5 is formed on the outer periphery of the resin liner 2 by a filament winding method for the composite member formed in the blowing step.

部品取付工程では、取付座面１２ａにシール部材７を取り付けるとともに、バルブ６を口金部材３に螺合する。以上の工程によって、圧力容器１が形成される。   In the component attachment process, the seal member 7 is attached to the attachment seat surface 12 a and the valve 6 is screwed to the base member 3. The pressure vessel 1 is formed by the above steps.

圧力容器１の製造方法は、前記した工程に限定されるものではない。本実施形態では、ブロー成形によって製造したが、例えば、口金部材３を金型にインサートした後に、インジェクション成形、回転成形等で成形工程を行ってもよい。   The manufacturing method of the pressure vessel 1 is not limited to the process described above. In this embodiment, although it manufactured by blow molding, after inserting the nozzle | cap | die member 3 in a metal mold | die, you may perform a shaping | molding process by injection molding, rotational molding, etc., for example.

以上説明した圧力容器１によれば、シール部材７を樹脂ライナー２の取付座面１２ａとバルブ６との間に介設するだけで気体又は液体のリークを確実に防ぐことができる。また、取付座面１２ａの外側に立上り壁１３を設けたことによりシール部材７の位置決めが容易になり、シール部材７の取付性を向上させることができる。また、立上り壁１３を設けたため、圧力容器１に内圧が作用した際に、シール部材７が外部にはみ出るのを防ぐことができる。また、立上り壁１３とバルブ６の押え部３２とでシール部材７を覆うことにより、シール部材７に直接太陽光が当らないため、シール部材７の劣化を防ぐことができる。   According to the pressure vessel 1 described above, leakage of gas or liquid can be surely prevented by merely providing the seal member 7 between the mounting seat surface 12a of the resin liner 2 and the valve 6. In addition, since the rising wall 13 is provided outside the mounting seat surface 12a, the sealing member 7 can be easily positioned, and the mounting property of the sealing member 7 can be improved. Further, since the rising wall 13 is provided, it is possible to prevent the seal member 7 from protruding to the outside when an internal pressure is applied to the pressure vessel 1. Further, since the sealing member 7 is covered by the rising wall 13 and the pressing portion 32 of the valve 6, sunlight is not directly applied to the sealing member 7, so that deterioration of the sealing member 7 can be prevented.

また、樹脂ライナー２とバルブ６との間にシール部材７を介設しているため、バルブ６を外せばシール部材７を視認できる。これにより、メンテナンスやシール部分の管理が容易になる。また、バルブ６を螺合する際に、シール部材７がよれるのを防ぐことができるため、取付時にシール性能が低下するのを回避できる。   Further, since the seal member 7 is interposed between the resin liner 2 and the valve 6, the seal member 7 can be visually recognized by removing the valve 6. This facilitates maintenance and management of the seal portion. Further, since the seal member 7 can be prevented from swaying when the valve 6 is screwed together, it is possible to avoid the deterioration of the sealing performance during installation.

また、樹脂製の取付座面１２ａを備えた張出部１２を金属製の口金部材３の大径部２３で支持しているため、張出部１２（取付座面１２ａ）の強度を向上させることができる。これにより、シール部分の耐久性を高めることができる。   Moreover, since the overhang | projection part 12 provided with the resin-made attachment seat surfaces 12a is supported by the large diameter part 23 of the metal cap member 3, the intensity | strength of the overhang | projection part 12 (attachment seat surface 12a) is improved. be able to. Thereby, durability of a seal part can be improved.

また、口金部材３の外周に、凹溝２５が設けられており、凹溝２５に樹脂ライナー２を構成する樹脂が充填されているため、樹脂ライナー２に対する口金部材３の回転を規制することができる。これにより、樹脂ライナー２と口金部材３との結合性を高めることができる。   Moreover, since the concave groove 25 is provided on the outer periphery of the base member 3 and the concave groove 25 is filled with the resin constituting the resin liner 2, the rotation of the base member 3 with respect to the resin liner 2 can be restricted. it can. Thereby, the bondability of the resin liner 2 and the base member 3 can be enhanced.

ここで、シール部材７が配置される部位にパーティングラインがあると、シール部分に隙間が発生し、シール性能を低下させるおそれがある。本実施形態の製造方法によれば、第１型Ｋ１及び第２型Ｋ２により、筒部１１の外周面には少なくとも２条のパーティングラインが形成されるが、取付座面１２ａ及び立上り壁１３の内面１３ａにはパーティングラインが形成されない。取付座面１２ａは、図６に示すように、突条５２の突条天面５２ｂで成形される。また、立上り壁１３の内面１３ａは、突条５２の突条外面５２ｃで成形される。つまり、突条天面５２ｂ及び突条外面５２ｃはいずれも連続するリング状になっているため、成形時にこれらの面にパーティングラインは形成されない。これにより、本実施形態に係る圧力容器の製造方法及び圧力容器１によれば、シール性能をより向上させることができる。   Here, if there is a parting line at a site where the seal member 7 is disposed, a gap is generated in the seal portion, which may reduce the seal performance. According to the manufacturing method of the present embodiment, the first mold K1 and the second mold K2 form at least two parting lines on the outer peripheral surface of the cylindrical portion 11, but the mounting seat surface 12a and the rising wall 13 are formed. No parting line is formed on the inner surface 13a. As shown in FIG. 6, the mounting seat surface 12 a is formed by a ridge top surface 52 b of the ridge 52. Further, the inner surface 13 a of the rising wall 13 is formed by the outer ridge surface 52 c of the ridge 52. That is, since the ridge top surface 52b and the ridge outer surface 52c are both in a continuous ring shape, no parting line is formed on these surfaces during molding. Thereby, according to the manufacturing method of the pressure vessel which concerns on this embodiment, and the pressure vessel 1, sealing performance can be improved more.

以上本発明の実施形態について説明したが、本発明の趣旨に反しない範囲において適宜設計変更が可能である。例えば、大径部２３の上端は、本実施形態では下方に傾斜しているが、突出部２２に対して垂直に延設されていてもよい。   Although the embodiments of the present invention have been described above, design changes can be made as appropriate without departing from the spirit of the present invention. For example, the upper end of the large-diameter portion 23 is inclined downward in the present embodiment, but may be extended perpendicular to the protruding portion 22.

図８は、変形例に係る圧力容器を示す要部拡大側断面図である。図８に示すように、変形例に係る圧力容器１Ａでは、バルブ６Ａにサポート部３３が形成されている点で前記した実施形態と相違する。また、口金部材３Ａには大径部２３及び鍔部２６が形成されていない点で前記した実施形態と相違する。   FIG. 8 is an enlarged cross-sectional side view of a main part showing a pressure vessel according to a modification. As shown in FIG. 8, the pressure vessel 1A according to the modified example is different from the above-described embodiment in that a support portion 33 is formed on the valve 6A. Further, the base member 3A is different from the above-described embodiment in that the large diameter portion 23 and the flange portion 26 are not formed.

バルブ６Ａは、本体筒部３１と、本体筒部３１の外周から外側に張り出した押え部３２と、押え部３２から延設されたサポート部３３とで構成されている。押え部３２は、口金部材３の上端及び立上り壁１３の上端を覆っている。   The valve 6 </ b> A includes a main body cylinder portion 31, a presser portion 32 that protrudes outward from the outer periphery of the main body cylinder portion 31, and a support portion 33 that extends from the presser portion 32. The presser part 32 covers the upper end of the base member 3 and the upper end of the rising wall 13.

サポート部３３は、押え部３２の先端側から下方に垂下しており、中心軸Ｃに対して立上り壁１３の外側に配置されている。サポート部３３は、断面視矩形を呈し、平面視してリング状に形成されている。サポート部３３は、立上り壁１３よりも長くなっており、押え部３２から筒部１１の上部まで延設されている。サポート部３３の内周面と立上り壁１３の外周面とは接触していてもよいし、わずかに離間していてもよい。また、立上り壁１３と押え部３２とは接触していてもよいし、わずかに離間していてもよい。また、サポート部３３が立上り壁１３の外側に配置されているのであれば、サポート部３３の長さは、立上り壁１３の長さ以下に設定してもよい。   The support portion 33 hangs downward from the distal end side of the presser portion 32 and is disposed outside the rising wall 13 with respect to the central axis C. The support portion 33 has a rectangular shape in cross section and is formed in a ring shape in plan view. The support portion 33 is longer than the rising wall 13 and extends from the presser portion 32 to the upper portion of the cylindrical portion 11. The inner peripheral surface of the support portion 33 and the outer peripheral surface of the rising wall 13 may be in contact with each other or may be slightly separated from each other. Further, the rising wall 13 and the pressing portion 32 may be in contact with each other or may be slightly separated from each other. Further, if the support portion 33 is disposed outside the rising wall 13, the length of the support portion 33 may be set to be equal to or shorter than the length of the rising wall 13.

樹脂製の立上り壁１３の外側に金属製のサポート部３３が配置されるため、樹脂ライナー２に内圧が作用した際に、立上り壁１３や筒部１１が外側に倒れるのを防ぐことができ、圧力容器１Ａの耐久性の向上を図ることができる。   Since the metal support portion 33 is disposed outside the resin rising wall 13, when the internal pressure is applied to the resin liner 2, the rising wall 13 and the cylindrical portion 11 can be prevented from falling outside. The durability of the pressure vessel 1A can be improved.

［第二実施形態］
第二実施形態に係る圧力容器１Ｂは、図９に示すように、補助部材６１を取り付けている点で第一実施形態と相違する。圧力容器１Ｂは、樹脂ライナー２と、樹脂ライナー２の端部に形成された口金部材３と、口金部材３の外周面に形成された塗膜４と、樹脂ライナー２の外周を覆う繊維強化樹脂層５と、口金部材３の内側に取り付けられた補助部材６１と、補助部材６１の内側に取り付けられたバルブ７１と、シール部材７とで主に構成されている。補助部材６１及びバルブ７１以外の部材は第一実施形態と略同等であるため、補助部材６１及びバルブ７１を中心に説明する。 [Second Embodiment]
The pressure vessel 1B according to the second embodiment is different from the first embodiment in that an auxiliary member 61 is attached as shown in FIG. The pressure vessel 1B includes a resin liner 2, a base member 3 formed at the end of the resin liner 2, a coating film 4 formed on the outer peripheral surface of the base member 3, and a fiber reinforced resin that covers the outer periphery of the resin liner 2. The layer 5, the auxiliary member 61 attached to the inside of the base member 3, the valve 71 attached to the inside of the auxiliary member 61, and the seal member 7 are mainly configured. Since members other than the auxiliary member 61 and the valve 71 are substantially the same as those in the first embodiment, the auxiliary member 61 and the valve 71 will be mainly described.

補助部材６１は、口金部材３の内側に接合されるとともに、バルブ７１が着脱される部材である。補助部材６１は、本実施形態では金属で形成されているが、樹脂製であってもよい。補助部材６１は、基部６２と、基部６２の先端から外側に張り出した押え部６３と、押え部６３の外縁に設けられたサポート部６４とで構成されている。   The auxiliary member 61 is a member to which the valve 71 is attached and detached while being joined to the inside of the base member 3. The auxiliary member 61 is made of metal in the present embodiment, but may be made of resin. The auxiliary member 61 includes a base portion 62, a presser portion 63 projecting outward from the tip of the base portion 62, and a support portion 64 provided on the outer edge of the presser portion 63.

基部６２は、筒状を呈する部位である。基部６２の内周面には雌ネジが形成されており、バルブ７１が螺合されるようになっている。また、基部６２の外周面には雄ネジが形成されており、口金部材３に螺合されるようになっている。   The base 62 is a part that has a cylindrical shape. An internal thread is formed on the inner peripheral surface of the base 62, and the valve 71 is screwed together. Further, a male screw is formed on the outer peripheral surface of the base portion 62 and is screwed into the base member 3.

押え部６３は、平面視円形を呈し、基部６２の上端から外側に向けて張り出している。押え部６３の外径は、筒部１１の外径よりも大きくなっている。   The presser part 63 has a circular shape in plan view, and projects outward from the upper end of the base part 62. The outer diameter of the pressing portion 63 is larger than the outer diameter of the cylindrical portion 11.

サポート部６４は、押え部６３の外縁から下方に垂下しており、中心軸Ｃに対して立上り壁１３の外側に配置されている。サポート部６４は、断面視矩形を呈し、平面視リング状に形成されている。サポート部６４は、立上り壁１３よりも長くなっており、押え部６３から筒部１１の上部まで延設されている。サポート部６４の内周面と立上り壁１３の外周面とは接触していてもよいし、わずかに離間していてもよい。また、立上り壁１３と押え部６３とは接触していてもよいし、わずかに離間していてもよい。また、サポート部６４が立上り壁１３の外側に配置されているのであれば、サポート部６４の長さは、立上り壁１３の長さ以下に設定してもよい。   The support part 64 hangs downward from the outer edge of the presser part 63, and is disposed outside the rising wall 13 with respect to the central axis C. The support portion 64 has a rectangular shape in sectional view and is formed in a ring shape in plan view. The support part 64 is longer than the rising wall 13 and extends from the presser part 63 to the upper part of the cylinder part 11. The inner peripheral surface of the support portion 64 and the outer peripheral surface of the rising wall 13 may be in contact with each other or may be slightly separated from each other. Further, the rising wall 13 and the pressing portion 63 may be in contact with each other or may be slightly separated from each other. Further, if the support portion 64 is disposed outside the rising wall 13, the length of the support portion 64 may be set to be equal to or shorter than the length of the rising wall 13.

バルブ７１は、内部に連通孔が形成された本体筒部７２を備えている。本体筒部７２は、補助部材６１の基部６２に接合される部位である。本実施形態では、本体筒部７２の先端側には先端に向けて先細りとなるテーパー部７２ａが形成されている。テーパー部７２ａの外周面には、雄ネジが形成されている。   The valve 71 includes a main body cylinder portion 72 having a communication hole formed therein. The main body cylinder part 72 is a part joined to the base part 62 of the auxiliary member 61. In the present embodiment, a tapered portion 72 a that is tapered toward the distal end is formed on the distal end side of the main body cylindrical portion 72. A male screw is formed on the outer peripheral surface of the tapered portion 72a.

また、テーパー部７２ａと補助部材６１の基部６２との間には、シール部材６５が介設されている。シール部材６５は、例えば、シールテープを用いる。   Further, a seal member 65 is interposed between the tapered portion 72 a and the base portion 62 of the auxiliary member 61. For example, a seal tape is used as the seal member 65.

以上のように構成された第二実施形態であっても、第一実施形態と略同等の効果を奏することができる。第一実施形態で用いたバルブ６には、押え部３２及びサポート部３３が形成されているが、押え部３２及びサポート部３３が形成されていないバルブも存在する。このような場合には、口金部材３とバルブ７１の間に補助部材６１を設けることで、様々な種類のバルブに対応することができる。   Even if it is 2nd embodiment comprised as mentioned above, there can exist an effect substantially equivalent to 1st embodiment. In the valve 6 used in the first embodiment, the presser portion 32 and the support portion 33 are formed, but there is a valve in which the presser portion 32 and the support portion 33 are not formed. In such a case, by providing the auxiliary member 61 between the base member 3 and the valve 71, various types of valves can be handled.

また、補助部材６１には、立上り壁１３の外側に配設されるサポート部６４が形成されているため、樹脂ライナー２に内圧が作用した際に、立上り壁１３や筒部１１が外側に倒れるのを防ぐことができ、圧力容器１Ｂの耐久性の向上を図ることができる。また、シール部材６５を設けることにより、補助部材６１とバルブ７１の間のシール性を高めることができる。   In addition, since the support member 64 disposed outside the rising wall 13 is formed in the auxiliary member 61, when the internal pressure is applied to the resin liner 2, the rising wall 13 and the cylindrical portion 11 fall outside. Can be prevented, and the durability of the pressure vessel 1B can be improved. Further, by providing the seal member 65, the sealing performance between the auxiliary member 61 and the valve 71 can be enhanced.

図１０は、変形例に係る圧力容器を示す要部拡大側断面図である。図１０に示すように、圧力容器１Ｃでは、バルブ８１の構成及びシール部材６５にＯリングを用いている点で第二実施形態と相違する。   FIG. 10 is an enlarged cross-sectional side view of a main part showing a pressure vessel according to a modification. As shown in FIG. 10, the pressure vessel 1 </ b> C is different from the second embodiment in that the valve 81 is configured and an O-ring is used for the seal member 65.

バルブ８１は、内部に連通孔が形成された本体筒部８２を備えている。本体筒部８２は、補助部材６１の基部６２に接合される部位である。本変形例では、本体筒部８２には、雄ネジが形成された接合部８２ａと、接合部８２ａよりも先端側に形成された先端部８２ｂと、先端部８２ｂに形成された凹部８２ｃとが形成されている。   The valve 81 includes a main body cylinder portion 82 having a communication hole formed therein. The main body cylinder part 82 is a part joined to the base part 62 of the auxiliary member 61. In the present modification, the main body cylinder portion 82 includes a joint portion 82a formed with a male screw, a tip portion 82b formed on the tip side of the joint portion 82a, and a recess portion 82c formed on the tip portion 82b. Is formed.

先端部８２ｂは略円柱状を呈する。凹部８２ｃは、先端部８２ｂの外周面に形成された窪みである。凹部８２ｃには、シール部材（Ｏリング）６５が配設される。   The tip 82b has a substantially cylindrical shape. The recess 82c is a recess formed in the outer peripheral surface of the tip end portion 82b. A seal member (O-ring) 65 is disposed in the recess 82c.

補助部材６１の基部６２の内周面６２ａは、先端部８２ｂの外周面と対向する。シール部材６５が、内周面６２ａと凹部８２ｃとに当接されることにより、補助部材６１とバルブ８１との間のシール性を高めることができる。   The inner peripheral surface 62a of the base portion 62 of the auxiliary member 61 faces the outer peripheral surface of the tip end portion 82b. The sealing performance between the auxiliary member 61 and the valve 81 can be enhanced by the sealing member 65 being in contact with the inner peripheral surface 62a and the recess 82c.

１ 圧力容器
２ 樹脂ライナー
２ａ 胴部
２ｂ 肩部
２ｃ ネック部
３ 口金部材
４ 塗膜
５ 繊維強化樹脂層
６ バルブ
７ シール部材
１１ 筒部
１２ 張出部
１２ａ 取付座面
１３ 立上り壁
２１ フランジ部
２２ 突出部
２３ 大径部
２５ 凹溝
３１ 本体筒部
３２ 押え部
３３ サポート部
６１ 補助部材
６２ 基部
６３ 押え部
６４ サポート部
７１ バルブ
７２ 本体筒部
８１ バルブ
８２ 本体筒部
Ｋ１ 第１型
Ｋ２ 第２型 DESCRIPTION OF SYMBOLS 1 Pressure vessel 2 Resin liner 2a Body part 2b Shoulder part 2c Neck part 3 Cap member 4 Coating film 5 Fiber reinforced resin layer 6 Valve 7 Seal member 11 Cylindrical part 12 Overhang | projection part 12a Mounting seat surface 13 Standing wall 21 Flange part 22 Projection Part 23 Large diameter part 25 Concave groove 31 Main body cylinder part 32 Presser part 33 Support part 61 Auxiliary member 62 Base part 63 Presser part 64 Support part 71 Valve 72 Main body cylinder part 81 Valve 82 Main body cylinder part K1 First type K2 Second type

Claims (5)

突出するネック部を備え、気体又は液体を収容する中空の樹脂ライナーと、
前記ネック部の内側に取り付けられた口金部材と、
前記口金部材の内側に取り付けられたバルブと、
前記樹脂ライナーと前記バルブとの間に設けられたシール部材と、を有する圧力容器であって、
前記ネック部は、筒状を呈する筒部と、前記筒部の上端に設けられ前記シール部材を取り付ける取付座面と、前記取付座面の外側に立ち上がる立上り壁と、を有し、
前記シール部材は、前記バルブの一部及び前記取付座面に当接しており、
前記バルブは、
前記口金部材に接合される本体筒部と、
前記本体筒部から外側に張り出し、前記立上り壁の上端及び前記口金部材の上端を覆う押え部を有し、
前記押え部には、前記立上り壁の外側に配置されたサポート部が延設されていることを特徴とする圧力容器。 A hollow resin liner having a protruding neck and containing gas or liquid;
A base member attached to the inside of the neck portion;
A valve attached to the inside of the base member;
A pressure vessel having a sealing member provided between the resin liner and the valve,
The neck portion has a cylindrical portion, a mounting seat surface provided at an upper end of the cylindrical portion to which the seal member is attached, and a rising wall that rises outside the mounting seat surface,
The seal member is in contact with a part of the valve and the mounting seat surface ,
The valve is
A main body cylinder part joined to the base member;
Projecting outward from the main body cylinder part, and having a presser part covering the upper end of the rising wall and the upper end of the base member,
The pressure vessel according to claim 1, wherein a support portion disposed outside the rising wall extends from the presser portion. 突出するネック部を備え、気体又は液体を収容する中空の樹脂ライナーと、
前記ネック部の内側に取り付けられた口金部材と、
前記口金部材の内側に取り付けられた補助部材と、
前記補助部材の内側に取り付けられたバルブと、
前記樹脂ライナーと前記補助部材との間に設けられたシール部材と、を有する圧力容器であって、
前記ネック部は、筒状を呈する筒部と、前記筒部の上端に設けられ前記シール部材を取り付ける取付座面と、前記取付座面の外側に立ち上がる立上り壁と、を有し、
前記シール部材は、前記補助部材の一部及び前記取付座面に当接しており、
前記補助部材は、
前記口金部材に接合されるとともに前記バルブが取り付けられる基部と、
前記基部から外側に張り出し、前記立上り壁の上端及び前記口金部材の上端を覆う押え部を有し、
前記押え部には、前記立上り壁の外側に配置されたサポート部が延設されていることを特徴とする圧力容器。 A hollow resin liner having a protruding neck and containing gas or liquid;
A base member attached to the inside of the neck portion;
An auxiliary member attached to the inside of the base member;
A valve attached to the inside of the auxiliary member;
A pressure vessel having a sealing member provided between the resin liner and the auxiliary member,
The neck portion has a cylindrical portion, a mounting seat surface provided at an upper end of the cylindrical portion to which the seal member is attached, and a rising wall that rises outside the mounting seat surface,
The seal member is in contact with a part of the auxiliary member and the mounting seat surface ,
The auxiliary member is
A base to which the valve is attached while being joined to the base member;
Projecting outward from the base, and having a presser part covering the upper end of the rising wall and the upper end of the base member,
The pressure vessel according to claim 1, wherein a support portion disposed outside the rising wall extends from the presser portion. 前記口金部材は、リング状のフランジ部と、前記フランジ部の内周に突出する筒状の突出部と、を有し、
前記突出部の外周には、半径方向に延設された大径部が設けられており、
前記取付座面の下に前記大径部が配置されていることを特徴とする請求項１又は請求項２に記載の圧力容器。 The base member has a ring-shaped flange part, and a cylindrical projecting part projecting to the inner periphery of the flange part,
A large-diameter portion extending in the radial direction is provided on the outer periphery of the protruding portion,
The pressure vessel according to claim 1 or 2, wherein the large-diameter portion is disposed under the mounting seat surface. 前記口金部材の外周に、凹溝が設けられており、
前記凹溝に前記樹脂ライナーを構成する樹脂が充填されていることを特徴とする請求項１乃至請求項３のいずれか一項に記載の圧力容器。 A concave groove is provided on the outer periphery of the base member,
The pressure vessel according to any one of claims 1 to 3, wherein the concave groove is filled with a resin constituting the resin liner. 前記口金部材と前記樹脂ライナーとの間に粉体塗装による塗膜が形成されていることを特徴とする請求項１乃至請求項４のいずれか一項に記載の圧力容器。

The pressure vessel according to any one of claims 1 to 4, wherein a coating film by powder coating is formed between the base member and the resin liner.

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