CN101836027A - 加压流体罐和制造这种罐的方法 - Google Patents
加压流体罐和制造这种罐的方法 Download PDFInfo
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Abstract
本发明特别涉及一种用于储存高压流体的金属罐(1),该金属罐(1)沿其轴线(2)包括多个被分隔件(3)隔开的相邻隔室(10,71,91),每个隔室具有圆筒形壁(72)、将每个分隔件与圆筒形壁相连的过渡区(73),所述隔室通过在每个分隔件中形成的至少一个孔口(6)相互连通,其中,对于给定隔室,所述圆筒形壁通过环状焊缝(75)与相邻隔室的过渡区相连。
Description
技术领域
本发明涉及处于压力下的流体的储存。其特别但并非唯一地适用于公路车辆、例如带有高压氧气储备的燃料电池车辆中气态氧的储存。
背景技术
在该领域中,在大量生产所述车辆时的一个困难是所述罐的设计,因为由所述车辆携带的罐必须满足严格的安全要求,以便使敲击或者意外碰撞的后果最小化。例如,当在所涉及的车辆的意外事故中罐被毁坏时,或者当从枪炮发射的弹丸穿过罐时,流体的压力被非常突然地释放。因为储存压力为200至500巴的数量级,由该压力释放所产生的能量可能如此大,以至聚集了火焰切割所需的条件。因此,一个目的是使由释放罐的内部压力所产生的能量最小化,否则后者将破裂。另一个目的是允许以合理的成本、例如机动车辆应用可接受的成本按工业规模获得所述罐。
发明内容
为此,本发明提出一种用于储存高压流体的金属罐,该金属罐沿其轴线包括多个被分隔件隔开的相邻隔室,每个隔室具有圆筒形壁、将每个分隔件与圆筒形壁相连的过渡区,所述隔室通过在每个分隔件中形成的至少一个孔口相互连通,其中,对于给定隔室,所述圆筒形壁通过环状焊缝与相邻隔室的过渡区相连。
优选地,端部隔室不同于中央隔室,所有中央隔室彼此相同。
优选地,罐具有位于所述罐的入口/出口端的单个入口/出口接口。还优选地,分隔件呈穹顶状,分隔件的凹面朝向罐的入口/出口端。
优选地,每个分隔件具有置于所述分隔件的中心处的单个孔口,孔口的直径在1毫米和5毫米之间。
本发明还提出一种获得用于储存高压流体的金属罐的方法,所述方法依次包括以下步骤:
·形成基本元件,所述基本元件包括具有圆形横截面的圆筒形壁、分隔件、将圆筒形壁的第一端与分隔件相连的过渡区,所述圆筒形壁的第二端构成自由边缘,其中所述分隔件包括孔口并且垂直于圆筒形壁的轴线安装,
·以使圆筒形壁的各自轴线重合的方式并置多个相同的基本元件,
·通过将每个基本元件的圆筒形壁的端部的自由边缘焊接到相邻元件的过渡区上将所述多个基本元件连接在一起。
优选地,所述基本元件基本上通过拉拔形成。
可替换地,所述基本元件基本上通过材料去除形成。
优选地,所述多个基本元件通过电子束焊接连接在一起。
优选地,端部元件也被焊接到所述多个基本元件的两端上,所述端部元件不同于所述基本元件。
优选地,每个基本元件的过渡区包括对中台肩,相邻元件的自由边缘围绕所述台肩定位。
附图说明
本发明的其他特征和优点从优选实施例的说明中将变得显而易见。附图分别示出了:
-图1:根据发明的罐的透视和局部剖开视图;
-图2:图1的罐的两个基本元件的平面图;
-图3:在包含罐的轴线的平面上的图1的两个罐元件之间的连接的细节的横截面视图;
-图4:在包含罐的轴线的平面上的图1的罐的两个隔室之间的连通孔口的细节的横截面视图;
-图5:根据本发明的第二实施例的连接的细节的类似于图4的横截面视图;
-图6:根据本发明的第三实施例的连接的细节的类似于图4和5的横截面视图。
具体实施方式
参见图1,其以局部剖开的方式示出了具有围绕轴线2的圆筒形总形状的罐1。罐具有构成其入口/出口接口40的一个开口端4和一个封闭端5。罐内部具有限定出多个隔室10的多个分隔件3。相邻隔室通过位于相应分隔件的中心处的孔口6连通。在该例子中,罐由限定出五个相同的中央隔室10的五个相同的基本元件7组成。罐的端部使用不同于基本元件7的特殊用途(专用)元件8和9。
封闭端5由端盖元件9构成。由此限定出的端部隔室91具有与中央隔室相似的容积。这里,端盖元件包括用于通过可动或柔性中间元件固定到车辆底盘上的螺纹杆51。这将允许罐的封闭端轴向移动,所述移动是其所承受的热应力和机械应力引起的变形的结果。应当意识到,可以以任何适宜的方式、例如利用滑动引导件实现保持/引导罐的封闭端5的该功能。
罐1的开口端4由具有入口/出口接口40的入口/出口元件8构成。所述入口/出口接口40包括与流体回路相连的连接装置(参见用于密封的外壳41),以及在该例子中形成相对于车辆附接罐的附接装置(参见螺纹孔42)。
如此处所示,分隔件3优选朝向罐的端部呈穹顶状(凹面朝向罐和所述分隔件形成其一部分的元件的开口端)。
图1的罐还包括与基本元件7相似的元件71,只是其管状部分稍短,从而使得由此限定出的入口/出口隔室71具有与中央隔室10相当的容积。然而,应当意识到,如果可以接受相应的隔室71具有稍大于其它隔室的容积的事实,则可以替代该元件71非常好地采用第六基本元件7。
示出了在相互装配在一起之前的两个基本元件的图2清楚地示出每个基本元件7(或者71)具有分隔件3和用于构成罐的圆筒形壁的外径为“φ”的圆形截面管状部分72。每个元件被制造成整体件,优选由诸如与加压氧气相适应的不锈钢的金属和可焊接材料制成。
然后,如图3中所示,以密封方式将所有元件(基本元件和端部元件)连接在一起,其中图3详细示出了两个相邻元件之间的连接的一个实施例。该附图示出了连接管状部分72和整体式基本元件的分隔件3的过渡区73。相邻元件7′的管状部分72的自由边缘76围绕该过渡区的对中台肩74装配。然后,周边焊缝(焊道)75以密封方式连接两个元件。此处所图示的连接是两个基本元件之间的连接,但是,如可从图1中推断出的那样,可以将相同类型的连接应用到端部元件8和9上。特别是,因为入口/出口元件8没有分隔件,入口/出口元件8的过渡区不同,但是可以以与其它元件相同的方式实现该元件8和相邻元件70之间的连接。
图4以放大的比例示出了图2中的细节B。其示出了具有孔口6的分隔件3的中心部分。如上所述,所述孔口使两个相邻隔室10连通。当罐被填充时,流体通过孔口流向附图的右侧,以便装满全部隔室并且使它们压力相等。当罐供给流体消耗回路时,流体流向附图的左侧,即,朝向罐的开口端4。所述单个和中心孔口6构成限制两个相邻隔室之间的流量/流速的声速喉部。
分隔件所起到的实质作用是如果罐破裂则减小被立刻释放的流体的体积。优选地,需如此设计分隔件和孔口的尺寸,以使得当罐破裂时,它们能够抵抗至少一个隔室的压力的急剧下降,即使为了这样做它们不得不变形,包括永久(塑性)变形。对于由拉伸强度为1100MPa的不锈钢制成、直径为φ=70毫米、填充处于200巴的惯用压力下的氧气的罐,已经发现,分隔件的厚度为0.8毫米并且孔口的直径为3毫米被证明是完全满意的。取决于罐的尺寸,孔口的直径可以变化。优选地,其在1毫米和5毫米之间。可替换地,可以具有最终对全部流量具有相同作用的多个更小直径的孔。
分隔件朝向罐的端部呈穹顶形的事实允许在相对于目标储存压力来说相对高的的填充压力下填充罐而不损坏分隔件,因为它们能够承受两个相继隔室(附图中从左至右)之间的高压力差。因此,可以更快地进行填充。与之相对照,当接着通过供应流体的回路消耗流体时,分隔件所承受的压力差低得多(如果不可以忽略),因为流量/流速比填充期间低得多。
为此,使用以下方法制造罐:
·例如通过材料去除(车削、铣削)、通过拉拔或者使用适合于所选材料的任何技术来形成基本元件和特殊用途端部元件,
·沿元件的轴线组装组成罐的所述元件,
·例如通过电子束焊接(亦称电子轰击)、激光焊接或者摩擦焊接实现每个元件的圆筒形壁72的自由边缘76与相邻元件的过渡区73之间的最后或确定连接。
当提到基本上通过拉拔获得所述元件时,其意味着拉拔操作赋予元件的总形状,即使然后还需要根据连接类型所需的装配精度在过渡区中或者自由边缘上进行机加工操作。例如,已知通过电子束焊接的连接需要相对高的精度。
图5示出了根据本发明的罐的第二实施例,其中,通过与如上所述关于将相邻元件相互连接在一起的方法类似的方式将管部分721焊接(参见焊缝或焊道77)到分隔件3的台肩78上来获得元件本身。
图6示出了根据本发明的罐的第三实施例。其与第二实施例的不同之处在于,管部分721的自由边缘761和过渡区732以这样的方式构造,以使得允许利用单个焊缝75将它们组装并连接在一起。在该实例中,自由边缘以45°的角度倒角,并且分隔件3具有环形隆起79,其侧面斜坡也倾斜45°。
已经以在车辆罐上的特定应用为例描述了本发明,应当理解,其也可以被应用到具有更大或更小容量的静止罐的情况下。
在机动车辆应用中设想的惯常压力为200巴。根据目前实施的标准,其对应于300巴的检验压力和超过450巴的拉伸强度。
本发明的一个优点是罐的长度仅取决于所应用的基本元件的数量。
Claims (11)
1.用于储存高压流体的金属罐(1),该金属罐(1)沿其轴线(2)包括多个被分隔件(3)隔开的相邻隔室(10,71,91),每个隔室具有圆筒形壁(72)、将每个分隔件与所述圆筒形壁相连的过渡区(73),所述隔室通过在每个分隔件中形成的至少一个孔口(6)相互连通,其中,对于给定隔室,所述圆筒形壁通过环状焊缝(75)与相邻隔室的过渡区相连。
2.根据权利要求1所述的罐,其特征在于,端部隔室(71,91)不同于中央隔室(10),所有中央隔室彼此相同。
3.根据前述权利要求之一所述的罐,其特征在于,包括位于所述罐的入口/出口端(4)处的单个入口/出口接口(40)。
4.根据权利要求3所述的罐,其特征在于,所述分隔件呈穹顶状,所述分隔件的凹面朝向所述罐的入口/出口端。
5.根据前述权利要求之一所述的罐,其特征在于,每个分隔件具有置于所述分隔件的中心的单个孔口(6),所述孔口的直径(φ)在1毫米和5毫米之间。
6.制造用于储存高压流体的金属罐的方法,所述方法依次包括以下步骤:
·形成基本元件,所述基本元件包括具有圆形横截面的圆筒形壁(72)、分隔件(3)、将所述圆筒形壁的第一端与所述分隔件相连的过渡区(73),所述圆筒形壁的第二端构成自由边缘(76),其中所述分隔件(3)包括孔口(6)并且垂直于所述圆筒形壁的轴线(2)安装,
·以使所述圆筒形壁的各自轴线重合的方式并置多个相同的基本元件,
·通过将每个基本元件的圆筒形壁的端部的自由边缘焊接到相邻元件的过渡区上将所述多个基本元件连接在一起。
7.根据权利要求6所述的方法,其特征在于,所述基本元件基本上通过拉拔形成。
8.根据权利要求6所述的方法,其特征在于,所述基本元件基本上通过材料去除形成。
9.根据权利要求6至8之一所述的方法,其特征在于,所述多个基本元件通过电子束焊接连接在一起。
10.根据权利要求6至9之一所述的方法,其特征在于,端部元件(8,9)也被焊接到所述多个基本元件(7)的两端上,所述端部元件不同于所述基本元件。
11.根据权利要求6至10之一所述的方法,其特征在于,每个基本元件(7)的过渡区(73)包括对中台肩(74),所述相邻元件(7′)的自由边缘(76)围绕所述对中台肩(74)定位。
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FR0758545A FR2922993B1 (fr) | 2007-10-24 | 2007-10-24 | Reservoir de fluide sous pression et methode de fabrication d'un tel reservoir. |
PCT/EP2008/064245 WO2009053374A1 (fr) | 2007-10-24 | 2008-10-22 | Reservoir de fluide sous pression et methode de fabrication d'un tel reservoir |
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EP (1) | EP2212612B1 (zh) |
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CN103890480A (zh) * | 2011-08-22 | 2014-06-25 | 天然气运输有限公司 | 生产四型气缸及将其安装在用于气态流体运输的运输厢体中方法 |
CN106542123A (zh) * | 2016-12-09 | 2017-03-29 | 大连理工大学 | 具有蜂窝夹芯壁的运载火箭复合材料贮箱及其加工方法 |
CN111457243A (zh) * | 2019-01-21 | 2020-07-28 | 本田技研工业株式会社 | 芯轴结构及其制造方法 |
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CN104154412A (zh) * | 2014-07-09 | 2014-11-19 | 汪佳泉 | 一种消防用七氟丙烷钢瓶及其制造方法 |
DE102015002708B3 (de) * | 2014-09-09 | 2015-10-22 | Mt Aerospace Ag | Behälter zum Aufnehmen und Speichern von Flüssigkeiten und viskosen Stoffen, insbesondere von kryogenen Fluiden, und Verfahren zu dessen Herstellung sowie dessen Verwendung |
CN104439819B (zh) * | 2014-10-14 | 2016-05-18 | 中国化学工程第十六建设有限公司 | 一种低温双层液氨储罐施工工艺 |
WO2016172430A1 (en) * | 2015-04-22 | 2016-10-27 | Keystone Engineering Company | Center of mass control of liquid tanks for spacecraft use |
DE102015014276A1 (de) * | 2015-11-06 | 2017-05-11 | Cool-System Keg Gmbh | Einweg Getränkefass aus Edelstahl |
EP3399952B1 (en) * | 2016-01-04 | 2023-06-07 | University of Pittsburgh- Of the Commonwealth System of Higher Education | Personal mobility wheelchair or scooter |
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FR3125103A1 (fr) * | 2021-07-07 | 2023-01-13 | Edmond Thuries | Compartimentage d’un réservoir en tubes de petit diamètre |
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- 2008-10-22 EP EP08842082.3A patent/EP2212612B1/fr not_active Not-in-force
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Cited By (5)
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CN103890480A (zh) * | 2011-08-22 | 2014-06-25 | 天然气运输有限公司 | 生产四型气缸及将其安装在用于气态流体运输的运输厢体中方法 |
CN103890480B (zh) * | 2011-08-22 | 2016-01-20 | 天然气运输有限公司 | 生产四型气缸及将其安装在用于气态流体运输的运输厢体中方法 |
CN106542123A (zh) * | 2016-12-09 | 2017-03-29 | 大连理工大学 | 具有蜂窝夹芯壁的运载火箭复合材料贮箱及其加工方法 |
CN111457243A (zh) * | 2019-01-21 | 2020-07-28 | 本田技研工业株式会社 | 芯轴结构及其制造方法 |
CN111457243B (zh) * | 2019-01-21 | 2021-11-09 | 本田技研工业株式会社 | 芯轴结构及其制造方法 |
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EP2212612B1 (fr) | 2018-09-19 |
JP2011501072A (ja) | 2011-01-06 |
EP2212612A1 (fr) | 2010-08-04 |
WO2009053374A1 (fr) | 2009-04-30 |
US20110226781A1 (en) | 2011-09-22 |
FR2922993A1 (fr) | 2009-05-01 |
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