CN103814248A - 用于复合容器的改进凸台 - Google Patents
用于复合容器的改进凸台 Download PDFInfo
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Abstract
公开了一种用于针对流体的复合压力容器的凸台。该凸台的结构包括确保避免在凸台内的内部压力积聚的减压装置。
Description
本发明涉及一种用于复合压力容器的改进凸台(boss,凸起部,毂)。尤其地,本发明涉及一种适于避免内部压力积聚的凸台。
背景技术
本发明涉及一种用于针对流体的复合压力容器的改进凸台,其中该容器包括内部流体密封热塑性衬层和由将纤维加强物缠绕在衬层上形成的压力支撑层,以及位于至少一端中的至少一个中心孔,该中心孔用于设置凸台以安装耦接件(coupling,联接器)或者阀件。
现有技术
在挪威专利第312048号中公开了一种用于复合压力容器的凸台。在挪威专利第306226号以及第309667号中公开了复合压力容器。
像这些压力容器均承受多种类型以及变化类型的应力和力。主要地,这涉及的是当用流体填充容器时可能发生内部过压。内部压力将通过可能是相当大的轴向向外定向的力影响着凸台。此外,凸台结构可能受轴向向内定向的力的影响,例如,当阀件或耦接件安装至凸台时,以及可能当由冲击或打击导致意外应力的情况时。重要的是,凸台的结构以及安装/固定也能够抵御这样的力。对于例如当阀件安装在凸台上时可能产生的扭转力(该阀件通常形成有螺纹并且被旋入凸台内),其同样是有效的。就这一点而言,当纤维加强物缠绕在内衬上时,也可能发生所涉及的扭转力。特别重要的是,凸台提供了相对压力容器的邻近部分的安全且耐久的密封。该密封必须使得上述力不能对密封效果造成破坏。
以上提及的挪威专利第312048号,公开了一种适于在本类型的压力容器中使用的凸台。
复合压力容器能够接收不同的流体,比如丙烷和丁烷,对于家用,通常具有相对低的约35巴的最大压力。容器也能够保持诸如CNG、氢气以及其他的通常需要更高的约200巴的最大压力的工业气体类型。复合压力容器可以适于在大区间段内承受压力。根据外部温度,在容器内的压力可以是从低于大气压力至达到2000巴。根据被接收在压力容器中的流体,压力容器会通常被构造成用于承受在选定区间段内的压力,这样的区间段例如但是不限制于0-20巴、4-260巴、1-1500巴等等。
发明目的
本发明的一个目的是提供一种适于在保持不仅相对低压力的流体的复合压力容器中使用的凸台,但是该凸台也能够被使用在保持更高压力的流体的压力容器上,并且该凸台制作并不昂贵。
遍布整个凸台材料上的压力、温度或浓度的差异可能导致流体渗透穿过材料。这种情况尤其与诸如O形环和密封表面的密封相关。如果凸台在内部主密封上方(其轴向外部)包括环境O形环(environmental O-ring,周围O形环)、或诸如气密螺纹连接或其他类型连接的气密密封的话,则可能在凸台内的主密封与辅助气密密封之间积聚压力。在凸台内的内部压力积聚可能影响凸台的安全性和良好的运行。
因此,本发明的另一个目的是要保证禁止任何在压力下会渗透穿过密封或会渗透穿过凸台的密封表面材料的流体在凸台内积聚压力。等同地禁止包括热致泄漏的任何泄漏,以防止导致在凸台内的压力积聚。
本发明的又一个目的是为了提供一种在高压下也具有长耐久性的凸台,因此允许容器可被重复使用很多次并且因此降低了成本。
为了实现这些目的和其他目的,本发明提供了一种用于针对流体的复合压力容器的凸台,其中压力容器包括内部流体密封衬层(fluid-tight linerlayer,不透流体的衬层)和由将纤维加强物缠绕在衬层上形成的压力支撑层,以及位于一端中的中心开口,该中心开口设置有凸台以装配耦接件或者阀件。
其中凸台包括适于接收耦接件或阀件的安装装置。
其中耦接件或阀件包括用于与安装装置接合的至少一个O形环。
其中凸台或耦接件或阀件进一步包括减压装置,该减压装置被布置成从在至少一个O形环外部轴向地布置的空隙传送流体并传送到凸台之外。
在一个实施方式中,根据本发明的凸台可以包括朝向压力容器的内部至少完全地嵌入的嵌入件,并且其中凸台包括布置在嵌入件与耦接件或阀件之间的唇部(lip)。
在本发明的一个方面中,凸台进一步包括在空隙的外部轴向地布置的环境O形环。环境O形环优选地放置于接近安装装置的轴向外端,以避免受到在凸台与耦接件或阀件之间的连接上的环境影响。
在一个实施方式中,减压装置包括布置在耦接件或阀件内的流体通道。
在另一个实施方式中,凸台包括具有螺纹的安装装置,并且所述减压装置包括位于螺纹中的凹槽或流体通道。
在根据本发明的凸台的又一个实施方式中,减压装置包括穿过凸台的减压通路,在一个方面中,减压通路包括布置在压力支撑层的内壁处的出口。
在一个实施方式中,凸台包括用于连接至衬层的连接法兰,以及在连接法兰外部轴向地放置的颈部,并且其中压力容器的纤维加强物缠绕在颈部上。
图的简要描述
现在将参考在图中示出的实例描述本发明,附图中:
图1图示了包括内部压力释放的凸台的第一实施方式的横截面。
图2图示了包括内部压力释放的凸台的第二实施方式的横截面。
图3图示了包括内部压力释放的凸台的第三实施方式的横截面。
发明的主要描述
图1、图2以及图3图示了本发明的另一方面的三种可选实施方式。所有图都示出了在压力容器上的凸台1,其中凸台包括开口、安装在开口中的耦接件或阀件5。凸台1通过连接法兰11而被焊接、胶接、铸造、模制、或以其他方式固定至复合压力容器上的内衬层4。通过倾斜表面14将连接法兰固定至衬层4。如上所述,根据使用的材料,可以用现有的方式通过焊接、通过不同的粘合技术、或通过其他技术来实施固定。可选地,对于所示的解决方案,凸台是衬层的整合(integrated,集成)部分或者衬层可以与连接法兰融合在一起以形成朝向开口的连续表面,或者衬形成了整合法兰,在此处凸台可以通过在其外部的螺纹而连接至整合衬法兰的外部。纤维加强物层3以本身已知的方法缠绕在连接法兰的顶部上以及衬层的顶部上。因此对于凸台1以及衬层4两者,纤维加强物层用作压力支撑层。进一步地,保护壳6,如所图示的,可以被布置在容器的外部。
凸台包括颈部12,颈部轴向地放置在连接法兰以及压力容器的外部。纤维加强物缠绕在颈部上,其提供了对纤维加强物的缠绕的良好控制,并且阻止纤维加强物覆盖开口。
凸台此外还包括嵌入件2。嵌入件2由具有至少足够的结构一致性的材料制成,以允许耦接件或阀件5的反复连接与分离。用于嵌入件2的材料可以与嵌入件3嵌入在其中的凸台1的其余部分的材料是不同的或相同的。嵌入件包括开口,该开口装配有用于安装耦接件或阀件5的安装装置24、25。在凸台中的开口可以进一步包括安装装置26。从制造经济性的角度,优选的是金属;但是,嵌入件2也可以由其他材料形成,可能是塑料材料,例如,纤维加强塑料。
除安装装置24、25外,嵌入件基本上通过在构成凸台的其余材料中注塑成型而铸造嵌入的。嵌入件2优选地形成有下部法兰21,下部法兰在连接法兰11的内部径向延伸。以这种方法,压力支撑纤维加强物也将覆盖嵌入件的下部法兰的外部,并且因此阻止在轴向方向上的运动。
安装装置24、25、26包括螺纹部24,该螺纹部被形成用于接收耦接件或阀件5,以及接收支撑表面25、26。因为在图1、图2以及图3上图示的发明涉及在耦接件或阀件5与凸台1之间的连接而不涉及这样的耦接件或阀件的内部结构,所以在图上仅详细图示了耦接件或阀件5的外表面。
图示的凸台的实施方式进一步包括用凸台的材料形成的唇部23,一旦安装耦接件或阀件5,该唇部被定位在阀件与嵌入件2之间在凸台的与颈部12轴向相对的一端处,并且布置在压力容器的内部。因为凸台的材料嵌入位于开口的内部中的嵌入件,面向开口的唇部表面形成了在开口的内端处的密封表面。阀件装配有一个或两个O形环51、51’,以进一步提升在耦接件或阀件5的外表面与凸台之间的密封。因为所有这些实施方式将会从本发明中获益,尽管此处在图1上图示的本发明采用了一个O形环并且在图2和图3上采用了两个O形环51、51’,但是仅具有一个O形环51的构造能等同地被应用在图2以及图3上所图示的实施方式中并且在图1上图示的实施方案可以采用两个O形环。
在容器内的容纳物在压力下将导致从容器的内部朝向凸台1定向的压力。该压力导致抵靠凸台内部的力朝向O形环51、51’挤压包括唇部23的凸台的部分,因此增强了O形环的密封效果。
凸台和衬层以已知方式用聚合物材料制成,分别优选地采用喷射铸造(spray casting)和吹塑(mould blowing);但是其他材料和制造方法也可以是预期的。
通过倾斜表面14将连接法兰固定至衬层4。如上所述,根据使用的材料,可以用现有的方式通过焊接、通过不同的粘合技术、或通过其他技术来实施固定。可选地,对于所示的解决方案,凸台是在衬的吹塑过程中安装的衬层的整合部分或是在之后旋上的,或者衬层可以与连接法兰融合在一起以形成朝向开口的连续表面。
为了阻止由扭转力(也由向内定向的力,例如,当固定阀时)引起的嵌入件2的运动,嵌入件2可以形成有抓紧机构(gripping organ,夹紧机构),该抓紧机构阻止嵌入件2相对于压力容器的旋转运动。这些抓紧机构可以形成为在嵌入件中的孔、凹陷或凹槽。
耦接件或阀件5可以包括布置在凸台的颈部12附近的环境O形环7或者相似的保护零件。环境O形环7的目的是为了密封进入安装装置24、25和26与耦接件或阀件5之间的连接的外部入口。环境O形环7限制潮气或污物或灰尘进入凸台的可能,但是可选的环境O形环7主要是保护免受容器所放置的环境的影响,而不是抵御在容器内的内部压力的O形环密封。
图1、图2和图3图示了针对避免在凸台中压力积聚的问题可选的解决方案。将要解决的问题是,通过一个或多个O形环51、51’获得的密封可能遭受渗透。在一定程度上取决于用于形成凸台所选择的材料,也可能发生穿过凸台其他部分的渗透。塑料材料一般地比金属更可能遭受渗透。如果允许渗透继续,流体压力将会在凸台内积聚,这又将会影响凸台的安全性以及可靠性。
图1图示了根据本发明的这个方面的凸台1以及耦接头或阀5的第一实施方式。在这个实施方式中,耦接件或阀件5包括减压通路41,该减压通路对任何来自空隙40的渗透流体进行引导,该空隙位于在凸台1与耦接件或阀件5之间的通道内且轴向地布置在O形环51的外部。减压通路41优选地与来自耦接件或阀件5的出口连通,该出口一般用于将流体从容器传送至使用位置。
图2图示了本发明的这个方面的第二可选实施方式。此处通过在螺纹区域24中的凹槽42或相似物,使得空隙40与外部环境的流体连通。可以通过选定的螺纹接触面设计来提供凹槽,因为能够将凸台上和耦接件或阀件上的螺纹选择成使得它们在耦接件或阀件旋在凸台上时提供沿螺纹的流体通道。如果耦接件或阀件5包括可选的环境O形环7,O形环7不具有或者具有有限的压力密封能力,使得压力不能在O形环的内侧积聚而是通过开口43释放到环境中。
图3图示了本发明的这个方面的第三可选实施方式。此处通过穿过凸台1的减压通路44,使得空隙40与外部环境的流体连通。减压通路可以布置在如所图示的嵌入件2中或穿过凸台的任意其他部分。减压通路的出口45布置在加强物层3的内壁处。加强物层是不防流体泄露的并且任何流体将因此穿过加强物层3并释放至环境中。加强物层3将保护减压通路44和凸台免受灰尘或相似的环境影响。
所应用的一个或多个O形环能够在尺寸上和材料上适于容器的压力以及适于形成容器的容纳物的化合物。
可以使用广泛已知的市场上可获得的方法来实施凸台的任何实施方式的生产。
Claims (7)
1.一种用于针对流体的复合压力容器的凸台,其中所述压力容器包括内部流体密封衬层(4)和由将纤维加强物缠绕在所述衬层上形成的压力支撑层(3)以及位于一端中的中心开口,所述中心开口设置有凸台(1)以装配耦接件或阀件(5),
其中所述凸台(1)包括适于接收所述耦接件或阀件(5)的安装装置(24、25、26),
其中所述耦接件或阀件包括用于与所述安装装置接合的至少一个O形环(51),
其中所述凸台或所述耦接件或阀件(5)进一步包括减压装置(41、42、44),所述减压装置被布置成从在所述至少一个O形环(51)外部轴向地布置的空隙(40)传送流体并传送到所述凸台(1)之外。
2.根据权利要求1所述的凸台,其中所述凸台(1)包括朝向所述压力容器的内部至少完全地嵌入的嵌入件(2),并且其中所述凸台包括布置在所述嵌入件(2)与所述耦接件或阀件(5)之间的唇部(23)。
3.根据权利要求1或2所述的凸台,其中所述凸台(1)进一步包括在所述空隙(40)外部轴向地布置的环境O形环(7)。
4.根据前述权利要求中任一项所述的凸台,其中所述减压装置包括位于所述耦接件或阀件(5)内的流体通道(41)。
5.根据权利要求1至3中任一项所述的凸台,其中所述安装装置包括螺纹(24)并且所述减压装置包括位于所述螺纹中的凹槽或流体通道(42)。
6.根据权利要求1至3中任一项所述的凸台,其中所述减压装置包括穿过所述凸台(1)的减压通路(44)。
7.根据权利要求6所述的凸台,其中所述减压通路(44)包括布置在所述压力支撑层(3)的内壁处的出口。
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BR112013033499B1 (pt) | 2022-06-28 |
WO2013000956A1 (en) | 2013-01-03 |
PL2726773T3 (pl) | 2021-06-14 |
PT2726773T (pt) | 2021-01-28 |
RU2014102040A (ru) | 2015-08-10 |
ES2843505T3 (es) | 2021-07-19 |
RU2602014C2 (ru) | 2016-11-10 |
MY178122A (en) | 2020-10-05 |
US20140239001A1 (en) | 2014-08-28 |
US9689531B2 (en) | 2017-06-27 |
EP2726773B1 (en) | 2020-11-04 |
EP2726773A1 (en) | 2014-05-07 |
BR112013033499A2 (pt) | 2017-01-24 |
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