CN110678640B - 压力构建低温流体输送系统 - Google Patents
压力构建低温流体输送系统 Download PDFInfo
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Abstract
一种低温流体输送系统包括配置为储存低温液体的供应的贮罐和具有主管线和再加热管线的热交换器。液体拾取管线具有接收来自贮罐的低温液体并且将其引导至热交换器的主管线的入口。修整加热器离去三通接收来自热交换器的主管线的流体。流体经过发动机出口和修整加热器出口离开修整加热器离去三通。经过发动机出口离开的流体流动经过流动限制装置并且流动至修整加热器返回三通的主入口。修整加热器管线接收来自修整加热器离去三通的修整加热器出口的流体并且在流体经过修整加热器管线的定位在贮罐内的一个部分之后将流体引导至热交换器的再加热管线。离开热交换器的再加热管线的已加温的流体行进至修整加热器返回三通的修整加热器入口。
Description
优先权主张
本申请要求于2017年4月25日提交的美国临时申请第62/489,575号的权益,其的内容在此通过引用并入。
技术领域
本公开内容一般地涉及低温流体输送系统,并且更具体地涉及压力构建低温流体输送系统。
背景技术
低温流体输送系统经常用于将流体提供至使用装置作为燃料或用于其他的用途。例如,一个类型的低温流体输送系统将液化天然气(LNG)作为燃料提供至LNG供能的交通工具的发动机并且必须被安装在交通工具的底盘上,随LNG储存贮罐一起。
许多天然气燃料系统需要高的燃料输送压力以满足发动机的流量要求。最优地饱和的LNG不是始终在燃料供应站可获得的。此外,在高消耗应用中导致去饱和,在其中燃料被从容器连续地并且以高速率取出。这些都能够导致低压力问题,导致向天然气发动机的不足够的流动。
存在对于解决上文的低压力问题的低温流体输送系统的需要。
发明内容
本发明的主题内容具有若干方面,其可以在下文描述和要求保护的装置和系统中分别地或共同地体现。这些方面可以单独地或与本文描述的主题内容的其他的方面组合地采用,并且这些方面的共同的描述不意图排除这些方面的分别的使用或这样的方面的分别的或在如在所附的权利要求中记载的不同的组合中的要求保护。
本发明要解决的技术问题是如何在产品被取出时建立贮罐压力,以有效地将足够的热和压力加入贮罐中以构建压力并且解决低压力问题。
在一个方面,一种集成的低温流体输送系统包括配置为储存低温液体的供应的贮罐和具有主管线和再加热管线的热交换器。液体拾取管线具有配置为接收来自贮罐的低温液体的入口和与热交换器的主管线的入口流体连通的出口。修整(trim)加热器离去三通具有与热交换器的主管线的出口流体连通的入口、修整加热器出口和发动机出口。修整加热器返回三通具有主入口、修整加热器入口和组合流出口。流动限制装置具有与修整加热器离去三通的发动机出口流体连通的入口和与修整加热器返回三通的主入口流体连通的出口。修整加热器管线具有与修整加热器离去三通的修整加热器出口流体连通的入口和与热交换器的再加热管线的入口流体连通的出口。修整加热器管线的一个部分定位在贮罐内。热交换器的再加热管线的出口与修整加热器返回三通的修整加热器入口流体连通。
在另一个方面,一种用于输送来自贮罐的低温流体的系统包括具有主管线和再加热管线的热交换器。液体拾取管线具有配置为接收来自贮罐的低温液体的入口和与热交换器的主管线的入口流体连通的出口。修整加热器离去三通具有与热交换器的主管线的出口流体连通的入口、修整加热器出口和发动机出口。修整加热器返回三通具有主入口、修整加热器入口和组合流出口。流动限制装置具有与修整加热器离去三通的发动机出口流体连通的入口和与修整加热器返回三通的主入口流体连通的出口。修整加热器管线具有与修整加热器离去三通的修整加热器出口流体连通的入口和与热交换器的再加热管线的入口流体连通的出口。修整加热器管线的一个部分定位在贮罐内。热交换器的再加热管线的出口与修整加热器返回三通的修整加热器入口流体连通。
在另一个方面,一种将低温流体输送至使用装置的方法包括以下步骤:将低温液体储存在贮罐中,将来自贮罐的低温液体在热交换器中蒸发以提供低温蒸气,将低温蒸气的第一部分引导至使用装置,将低温蒸气的第二部分引导至贮罐以暖化所储存的低温液体,由此产生已冷却的低温蒸气,将已冷却的低温蒸气在热交换器中暖化以产生已修整加热的低温蒸气以及将已修整加热的低温蒸气与低温蒸气的第一部分组合以用于向使用装置的输送。
本发明暖化例如车辆的燃料贮罐的贮罐内的液体燃料,以使燃料饱和并加压至足以满足发动机的燃料流动要求的输送压力。本发明提供了当在燃料供应站没有最佳饱和的燃料和/或当在燃料被连续从贮罐中以高速率取出的高频使用的应用中导致去饱和时使贮罐内的燃料加压并饱和的益处。通过解决这些问题,本发明处理了低压问题,而低压问题会导致饱和燃料向发动机的不足够的流动。
附图说明
图1是本公开内容的压力构建低温流体输送系统的一个实施方式的示意图;
图2是图1的系统的后视正视图。
具体实施方式
下文描述的本公开内容的系统的实施方式提供液化天然气(LNG)的从储存贮罐至使用装置例如天然气供能的交通工具发动机的集成的输送系统。将理解,本发明可以任选地用于输送或分配其他的类型的低温流体。
本公开内容的实施方式包括用于在产品正在被取出的同时构建贮罐压力的环路,以有效地将足够的热和压力加入贮罐中以构建压力并且解决低压力问题。
参考图1和2,在贮罐15中储存的燃料进入液体拾取管线1并且经过止回阀2、手动阀3、溢流阀4,并且经过管线12进入热交换器5的主要通路或主管线5a。热交换器通过流动经过热交换器的壳体并且与承载LNG的管接触的热发动机冷却剂将热(Q1)加入至天然气并且蒸发天然气。
仅作为例子,热交换器5可以如在美国专利第9,829,156号或美国专利申请第15/924,779号中描述的被配置,二者都属于Chart Inc.,其二者的内容在此通过引用并入,具有壳体和管式热交换器或其他的本领域已知的热交换器。
离开热交换器的天然气蒸气的流动分裂,其中一个部分继续至发动机(在图1中在13以虚线指示),并且其余部分转向返回,从而经过贮罐加热器管线7行进经过贮罐。作为结果,贮罐加热器管线7将热(Q2)输送入贮罐15中,导致贮罐内部压力的增加。
返回入贮罐加热器管线中的流动通过流动限制装置例如孔口6成为可能的,流动限制装置导致贮罐加热器管线7的离去三通10和返回三通11之间的压差。压力构建速率可以通过增加或减少孔口的大小被操纵,即,减小孔口的大小将使更多的流动被引导入贮罐加热器管线中,从而导致更高的压力构建速率。任选地,使用更大的孔口将允许更多的流动被引导至发动机,从而减少向贮罐加热器管线中的流动的量并且进而减小压力构建速率。孔口在本文中用于控制压力构建速率,然而本领域的技术人员已知,流动可以还通过针阀、调节器、止回阀或任何其他的本领域已知的流动限制装置被操纵,本发明涵盖其所有。作为本发明涵盖的另一个选择方式,在离去三通10下游的管路或管线可以包括创造压力构建系统以作为流动限制装置起作用使得孔口、针阀、调节器、止回阀或其他的专用的部件不被需要的直径、折曲部和/或长度。
贮罐加热器管线7内的气体将典型地在从贮罐内侧离开时是冷的,并且因此已冷却的气体可以被经过管线14引导返回入热交换器5的第二途经再加热管线5b中以暖化其以用于发动机输送。在离开再加热管线5b之后,气体将在返回三通11与燃料输送气体混合返回,并且经过自动阀8并且然后到达发动机13。
液体拾取管线1可以设置有节热器环路,如在Chart Inc.美国专利第9,829,156号中公开的。当如此配备时,图1和2的系统通过节热器环路的一旦贮罐内的压力达到阀门设定点时打开的“节热器”或“自冷冻”阀门被防止将贮罐15过压。当节热器环路阀门打开时,载热的蒸气被经过节热器环路和液体拾取管线1从贮罐除去,并且被从系统输送至发动机,从而保持稳定的贮罐内部压力。本发明的系统可以还具有与Chart Inc.美国专利第9,829,156号相同的卸压部、填充部、液面控制部、通风部、和冷燃料检测装置。
虽然在此描述了被冷却剂暖化的热交换器,但是环境气化器、电加热器或其他的合适的热交换器可以使用。此外,虽然系统被描述为使用LNG,但是本发明可以用于任何其他的低温系统以及必须使压力在产品输送期间被构建以解决上文描述的低压问题的低温系统。
低温流体输送系统必须经常被安装在具有相当大的空间限制的环境中。例如,用于将液化天然气(LNG)提供至LNG供能的交通工具的发动机的系统的部件必须被安装在交通工具的底盘上,随LNG储存贮罐一起。作为结果,如在图2中图示的,是期望的是将系统的所有的部件集成为一个组件。部件的组件可以被定位在护罩16内,护罩16可以附接至容纳LNG的贮罐的端壁或头部,如在Chart Inc.美国专利第9,829,156号中教导的。
虽然已经示出和描述了本公开内容的优选的实施方式,但是对于本领域的技术人员将是明显的是,可以作出优选的实施方式的改变和修改,而不偏离本公开内容的精神,本公开内容的范围由下文的权利要求限定。
Claims (25)
1.一种低温流体输送系统,包括:
a.贮罐,配置为储存低温液体的供应;
b.热交换器,具有主管线和再加热管线;
c.液体拾取管线,具有配置为接收来自所述贮罐的低温液体的入口和与所述热交换器的所述主管线流体连通的出口;
d.修整加热器离去三通,具有与所述热交换器的所述主管线流体连通的入口、修整加热器出口和发动机出口;
e.修整加热器返回三通,具有主入口、修整加热器入口和组合流出口;
f.流动限制装置,具有与所述修整加热器离去三通的所述发动机出口流体连通的入口和与所述修整加热器返回三通的所述主入口流体连通的出口;以及
g.修整加热器管线,具有与所述修整加热器离去三通的所述修整加热器出口流体连通的入口和与所述热交换器的所述再加热管线的入口流体连通的出口,其中所述修整加热器管线的一个部分定位在所述贮罐内,并且其中所述热交换器的所述再加热管线的出口与所述修整加热器返回三通的所述修整加热器入口流体连通。
2.根据权利要求1所述的系统,还包括溢流阀,具有与所述液体拾取管线流体连通的入口和与所述热交换器的所述主管线流体连通的出口。
3.根据权利要求2所述的系统,还包括燃料截止阀,具有与所述液体拾取管线流体连通的入口和与所述溢流阀的所述入口流体连通的出口。
4.根据权利要求3所述的系统,还包括止回阀,具有与所述液体拾取管线流体连通的入口和与所述燃料截止阀的所述入口流体连通的出口。
5.根据权利要求1所述的系统,其中所述流动限制装置是孔口、针阀、调节器或止回阀。
6.根据权利要求1所述的系统,其中所述热交换器包括:
a.壳体,界定加温流体室并且具有与所述加温流体室流体连通的壳体入口和壳体出口;并且
b.其中所述热交换器主管线包括定位在所述加温流体室内的多个低温流体盘管。
7.根据权利要求6所述的系统,其中所述热交换器再加热管线包括定位在所述加温流体室内的多个低温流体盘管。
8.根据权利要求7所述的系统,其中所述壳体入口和所述壳体出口配置为与被所述低温流体供能的发动机的冷却系统连通。
9.根据权利要求6所述的系统,其中所述壳体入口和所述壳体出口配置为与被所述低温流体供能的发动机的冷却系统连通。
10.根据权利要求1所述的系统,还包括与所述液体拾取管线流体连通的节热器环路。
11.根据权利要求1所述的系统,还包括自动截止阀,具有与所述修整加热器返回三通的所述组合流出口流体连通的入口和配置为向使用装置提供低温流体的出口。
12.根据权利要求11所述的系统,其中所述低温液体是液化天然气并且所述使用装置是LNG供能的发动机。
13.一种用于输送来自贮罐的低温流体的系统,包括:
a.热交换器,具有主管线和再加热管线;
b.液体拾取管线,具有配置为接收来自所述贮罐的低温液体的入口和与所述热交换器的所述主管线流体连通的出口;
c.修整加热器离去三通,具有与所述热交换器的所述主管线流体连通的入口、修整加热器出口和发动机出口;
d.修整加热器返回三通,具有主入口、修整加热器入口和组合流出口;
e.流动限制装置,具有与所述修整加热器离去三通的所述发动机出口流体连通的入口和与所述修整加热器返回三通的所述主入口流体连通的出口;以及
f.修整加热器管线,具有与所述修整加热器离去三通的所述修整加热器出口流体连通的入口和与所述热交换器的所述再加热管线的入口流体连通的出口,其中所述修整加热器管线的一个部分定位在所述贮罐内,并且其中所述热交换器的所述再加热管线的出口与所述修整加热器返回三通的所述修整加热器入口流体连通。
14.根据权利要求13所述的系统,还包括溢流阀,具有与所述液体拾取管线流体连通的入口和与所述热交换器的所述主管线流体连通的出口。
15.根据权利要求14所述的系统,还包括燃料截止阀,具有与所述液体拾取管线流体连通的入口和与所述溢流阀的所述入口流体连通的出口。
16.根据权利要求15所述的系统,还包括止回阀,具有与所述液体拾取管线流体连通的入口和与所述燃料截止阀的所述入口流体连通的出口。
17.根据权利要求13所述的系统,其中所述流动限制装置是孔口、针阀、调节器或止回阀。
18.根据权利要求13所述的系统,其中所述热交换器包括:
a.壳体,界定加温流体室并且具有与所述加温流体室流体连通的壳体入口和壳体出口;并且
b.其中所述热交换器主管线包括定位在所述加温流体室内的多个低温流体盘管。
19.根据权利要求18所述的系统,其中所述热交换器再加热管线包括定位在所述加温流体室内的多个低温流体盘管。
20.根据权利要求19所述的系统,其中所述壳体入口和所述壳体出口配置为与被所述低温流体供能的发动机的冷却系统连通。
21.根据权利要求18所述的系统,其中所述壳体入口和所述壳体出口配置为与被所述低温流体供能的发动机的冷却系统连通。
22.根据权利要求13所述的系统,还包括与所述液体拾取管线流体连通的节热器环路。
23.根据权利要求13所述的系统,还包括自动截止阀,具有与所述修整加热器返回三通的所述组合流出口流体连通的入口和配置为向使用装置提供低温流体的出口。
24.根据权利要求23所述的系统,其中所述低温液体是液化天然气并且所述使用装置是LNG供能的发动机。
25.一种将低温流体输送至使用装置的方法,包括以下步骤:
a.将低温液体储存在贮罐中;
b.将来自所述贮罐的低温液体在热交换器中蒸发以提供低温蒸气;
c.将所述低温蒸气的第一部分引导至所述使用装置;
d.将所述低温蒸气的第二部分引导至所述贮罐以暖化所储存的低温液体,由此产生已冷却的低温蒸气;
e.将所述已冷却的低温蒸气在所述热交换器中暖化以产生已修整加热的低温蒸气;以及
f.将所述已修整加热的低温蒸气与所述低温蒸气的所述第一部分组合以用于向所述使用装置的输送。
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KR20190134672A (ko) | 2019-12-04 |
CN110678640A (zh) | 2020-01-10 |
CA3059962C (en) | 2023-02-28 |
JP7125424B2 (ja) | 2022-08-24 |
EP3396228B1 (en) | 2020-02-26 |
JP2020517854A (ja) | 2020-06-18 |
CA3059962A1 (en) | 2018-11-01 |
WO2018200725A1 (en) | 2018-11-01 |
MX2019012334A (es) | 2020-01-23 |
US20180306383A1 (en) | 2018-10-25 |
US11371654B2 (en) | 2022-06-28 |
ES2791536T3 (es) | 2020-11-04 |
KR102520903B1 (ko) | 2023-04-11 |
PL3396228T3 (pl) | 2020-11-16 |
EP3396228A1 (en) | 2018-10-31 |
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