CN106660635A - 紧凑的液体冷却的、通风式厨房冷却器 - Google Patents
紧凑的液体冷却的、通风式厨房冷却器 Download PDFInfo
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Abstract
公开了一种用于飞机厨房饮料推车隔间的冷却器(10),其中液体冷却的冷却器位于推车隔间中,并垂直定向抵靠后壁。冷却器接合推车并且以减小的占地面积高效地循环冷却的空气,从而允许减小推车隔间的深度。该单元包括用来控制通过热交换器(34)的流体量的比例阀(38)以及在后冷却侧上的分配块(48),以有效地引导用过的制冷剂。
Description
相关申请的交叉引用
本申请要求于2014年7月8日提交的美国临时专利申请号62/022,113和于2015年6月29日提交的美国非临时专利申请号14/754,593的优先权,其内容通过引用全部并入本文。
背景技术
大型商业载客飞机具有用于在飞行期间制备和供应食物和饮料的厨房。这些厨房配备有烤箱、饮料制造机、垃圾压实机、以及在食品和饮料的制备和供应中使用的各种其他厨房类型的器具。厨房还包括可沿飞机的过道滚动以向乘客供应餐食和饮料的推车或手推车。与所有飞机***一样,这些厨房和其中使用的设备必须遵守重量和空间的准则,这两者都是飞机上的额外费用。作为食物和饮料服务的一部分,易腐品被存储,然后在飞行中供应。易腐品对飞机运营商造成了问题,因为传统的制冷***太重并占据太多的空间而不能在飞机厨房中起作用。因此,飞机制造商必须设计一种在飞行期间保持易腐品新鲜的方法,而不需要在飞机上安装冰箱。
为此,大多数商用飞机采用两种类型的***中的一种,以用于从装载到在飞行中的供应均在期望的温度下保持易腐食品和不易腐的饮料。第一种方法利用基于蒸汽循环的空气冷却器,其利用常规制冷剂气体压缩和膨胀技术来产生二次再循环冷却空气回路。冷却的空气通常经由热绝缘空气管道供应到合适的存储结构(诸如厨房)并从其返回。空气冷却器可以位于厨房上或厨房中或安装在飞机机身的一部分中。
第二种方法利用相同的常规制冷剂气体压缩和膨胀技术,但是冷却介质是冷却的液体而不是气体。将该冷却的液体在闭合回路中泵送到合适的存储结构(诸如厨房)并从其离开。在一些情况下,冷却的液体被配置为用于整个飞机的大型集中式***。在其他情况下,冷却的液体可以在每个单独的飞机厨房结构处循环以建立局部区域冷却回路,或者基于每个单独的厨房作为独立***。在厨房处,液体经由控制阀和电子控制***传递到热交换器,其中电轴流式(或其他)风扇围绕存储结构的需要冷却的封闭区域通过其矩阵吹动或吸入空气,该需要冷却的封闭区域例如为:厨房推车舱或隔间。热交换器风扇及其控制***(尽管不一定全部)被组合在一起以形成可配合在厨房中或远离厨房隔开的冷冻空气再循环单元。
这些各种冷却器***的一个缺点是,它们仍然占据厨房中的大部分可用空间,由于显而易见的原因,这在飞机中是非常昂贵的。此外,冷却器倾向于非常重,这也是其在飞机上使用的缺点。还存在冷凝物收集和移除的问题,以及对传热效率的改进的需要。此外,空气控制翼片需要减少冷却空气的损失(其使得***更低效)。
因此,具有这样的冷却器***将是有益的:其与目前使用的常规冷却器***相比占据更少的空间并且反映重量的减少,同时提供冷凝物收集和改善的传热效率。
发明内容
本发明是一种用于飞机的冷却空气分配***,其具有减小的总体占地面积和减小的重量,并且具有改进的总体热传递效率。该紧凑轻型***特别适用于飞机厨房,其需要冷藏或冷却的推车或手推车,和/或携带标准餐盒的推车,和/或冷却的食品和饮料隔间。本发明的冷却器***包括邻近饮料推车并且在飞机厨房的工作甲板下方的垂直定向的冷却单元,其包括远离饮料推车存储器引导的管道,以在冷却过程期间带走热空气。在饮料/餐食推车存在的情况下,联锁器连接***,并且当饮料/餐食推车被移除时,联锁器协作以关闭分配冷却空气的风扇,并且使冷却的制冷剂通过旁路回路(排除装配具有自关闭翼片阀的空气出口和入口的需要)。
空气冷却模块垂直定向并且定位在隔间中,在该处饮料/食物推车容纳在工作甲板下方的厨房中。在优选实施例中,该模块安装到隔间的后壁并且增加不超过1.65英寸(42mm)的深度。管道在模块的热交换器与位于隔间顶部的冷却液体分配歧管之间分配冷却的冷却剂,并从厨房中心列中的飞机管道或从另一个可用位置馈送。在优选实施例中,用于液体冷却剂接头的连接可以是带螺纹的或快速断开的。模块优选地通过允许快速和容易地安装和移除的多个柔性软管连接到分配歧管。
冷却模块可以采用厨房LRU(管线可更换单元)的形式,并且结合空气到液体的热交换器,以用于冷却通过相关联的饮料推车的再循环空气。在另一个优选实施例中,冷却模块可以包括除霜加热器,以用于在需要时从热交换器和其他部件清除冰。在这种情况下,优选地包括自动排水阀,以允许冷凝物从模块的壳体的底部移除并引导到飞行器的废水***。
本发明的特征是结合考虑到每个单独的冷却推车隔间的温度要求来控制制冷剂液体通过热交换器的流动的电动三通转向阀或比例阀。提供一个或多个轴流式风扇以使冷却的空气在安装的推车的内部周围再循环,但是也可以使用其他类型的风扇。模块的控制由局部控制箱实现,包括将信号传送到公共厨房安装的控制器(e-box)并且从公共厨房安装的控制器(e-box)传送信号的继电器。易于拆卸的电力和数据电缆布线到单元并从单元布线,并将关于***的信息馈送到主厨房控制器。还可以结合抗振动措施以防止振动传递到厨房结构,诸如抑制来自各种源的振动的弹性安装件。
本发明的位置在厨房占地面积和重量减轻中起到有用的作用,并且冷却空气在安装有手推车或推车的工作甲板下方周围的有效分配中也起到有用的作用。通过工作甲板的空气路径、管道***和空气引导装置被定位用于有效地使用冷却空气以满足飞机制造商的认证要求。
从下面结合附图的优选实施例的详细描述中,本发明的其他特征和优点将变得更加明显,附图通过示例的方式示出了本发明的操作。
附图说明
图1是本发明的第一优选实施例的前视图;
图2是图1的实施例的前视图,其中壳体被移除;
图3A是图1的实施例的侧视图,为了清楚起见,左手侧被剖开;以及
图3B是图1的实施例的侧视图,为了清楚起见,右手侧被剖开。
具体实施方式
图1示出了本发明的第一实施例的前视图,其示出了用于在飞机厨房中使用的紧凑的液体冷却的、通风式冷却器10。冷却器的部件被封装在由重量轻、坚固的聚合物或铝壳制成的壳体12中,其空气供应端口14位于上部16处,且空气返回端口18位于底部20处。在优选实施例中,端口14、18被密网(未示出)覆盖,以防止灰尘、昆虫和害虫进入冷却器的部件或获得存储在相邻推车中的食物。
在如图2所示移除壳体的情况下,部件及其彼此的关系变得显而易见。模块的上部16包括一对端口,第一端口22用于将电力连接到该单元并且第二端口24用于通信/数据交换。电源端口22可以连接到主厨房配电网络,该主厨房配电网络通常是符合FAA规定的三相电压***。在冷却器10的上表面处还有用于使液体制冷剂循环通过冷却器10的液体入口28和液体出口30。制冷剂可以循环通过***到热交换器34。用于制冷剂的入口28经由供应管道36连接到三通比例阀38,以用于控制制冷剂通过***的流动。一部分制冷剂流过热交换器34,且一部分制冷剂通过旁路管线40返回。被引导到热交换器的制冷剂的量和被引导到旁路管线的流体的量由控制器管理,该控制器监控厨房推车的加热需求并且随后相应地调节冷却器的冷却输出。
空气使用一个或多个管轴流式风扇42通过返回端口18被吸入,其携带空气越过热交换器34,并且在液体制冷剂冷却热交换器盘管时冷却空气。示例性实施例中的热交换器34是十二列热交换器,其在暖回流空气被引导经过盘管时循环液体制冷剂,由此冷却空气。液体制冷剂通过液体回流阀46和供应管线44从热交换器34运走,该供应管线44包括三通流量分配块48以再循环冷却流体。流量分配块48包括到单元顶部的冷却器10的液体制冷剂出口30的路径50,其中流体随后流到主泵送和热交换器***。到分配块48的第二入口包括来自旁路管线40的管道。邻近热交换器34的风扇42通过空气入口18将较暖的空气吸过热交换器34,然后通过空气供应端口14将冷却的空气吹回并经由联锁器直接进入饮料/食物推车。联锁器由饮料推车的存在致动/控制,并且当不存在推车时自动关闭轴流式风扇42。此外,当不存在推车时,冷却的制冷剂通过旁通管线40以再循环模式被引导,从而消除对自闭合空气翼片或其他封闭件的需要。然而,在优选实施例中,密封件52设置在空气入口14和空气出口端口18周围,以减少或消除在推车和冷却器的接合处的泄漏和损失。
图3A、3B示出了冷却器10的左部和右部的侧视图。冷凝物排放配件56设置在单元的左手侧,以用于收集和引导冷凝物到废水处理端口,作为飞机灰水***的一部分。在右侧和左侧的顶部处的液体制冷剂入口28和出口30分别具有通向比例阀38和分配块48的相关联的导管36、50。
本发明的特征是冷却器单元10在紧凑的占地面积中的高容量。如图3所示,冷却器10比传统厨房冷却器单元占据更少的空间,同时满足在长途航班上保存易腐品等的所有要求。具体地,本发明显着地减少了在使用远程供应的冷却液体作为冷却介质的飞机上、当前制造的ATLAS或ACE标准“通风式”饮料/食品车的有效冷却(制冷)所需的空间。本发明的冷却器允许常规飞机餐饮厨房的深度减小3至4英寸(75至100mm),同时维持全部效用。
本发明的优点包括将通风式冷却器模块的深度减小到1.65英寸(42mm),与采用常规通风式饮料/食物推车的厨房相比,允许减小厨房的整体深度。冷却器的紧凑和有效的性质提供了根据热需求的每个推车舱的独立和单独的冷却。此外,冷却的液体分配歧管在冷却推车舱的顶部朝向厨房工作甲板的后部的位置提供了用于与厨房的主液体冷却剂***集成的容易且方便的***。通过流动效率良好的管道***在冷却推车内部分配空气促进了效率,在管道***处较热的空气被冷却并通过隔间再循环。本发明通过使用塑料和轻质复合材料提供显着的重量减轻,以及通过使用经由比例阀的液体流量配比和可调风扇速度的组合来控制每个单独的模块的冷却能力(btu输出)的能量效率。出于安全和健康考虑,使用自动冷凝物排放装置从空气冷却模块的壳体中移除多余的冷凝水,并且通过使用推车致动的联锁装置消除对空气控制翼片的需求节省了成本,同时有助于防止热损失。
从前面的描述中显而易见的是,虽然已经示出和描述了本发明的特定形式,但是在不脱离本发明的精神和范围的情况下可以进行各种修改。因此,除了所附权利要求之外,并不意图限制本发明。
Claims (9)
1.一种用于布置在厨房推车隔间中的通风式液体制冷剂飞机厨房冷却器,包括:
液体制冷剂入口和液体制冷剂出口,用于连接到外部泵送***;
三通比例阀,被连接到所述液体制冷剂入口以用于控制制冷剂通过热交换器的流动;
控制器,用于基于所述厨房推车隔间内的状况来控制所述三通比例阀;
轴流式风扇,用于将冷却空气再循环到相邻的厨房推车;
供应空气端口和返回空气端口,用于分别向相邻的所述厨房推车递送空气及从相邻的所述厨房推车接纳空气;
热交换器,与所述液体制冷剂和从所述返回空气端口移动到所述供应空气端口的空气协作,以冷却所述空气;
流量分配块,用于从所述热交换器和所述三通比例阀接纳液体制冷剂,并将所述液体制冷剂连通到所述液体制冷剂出口;
其中所述冷却器是线路可更换单元。
2.根据权利要求1所述的通气式液体制冷剂飞机厨房冷却器,其中当所述冷却器以垂直取向安装在飞机厨房推车隔间中时,所述冷却器的深度小于二英寸。
3.根据权利要求2所述的通气式液体制冷剂飞机厨房冷却器,还包括在所述冷却器的底部处的自动排水阀,用于将冷凝物排出到所述飞机上的废水***。
4.根据权利要求2所述的通气式液体制冷剂飞机厨房冷却器,其中当所述飞机厨房推车隔间中不存在推车时,所述三通比例阀使所述液体制冷剂再循环。
5.根据权利要求2所述的通气式液体制冷剂飞机厨房冷却器,还包括用于移动空气通过所述冷却器的第二轴流式风扇。
6.根据权利要求2所述的通气式液体制冷剂飞机厨房冷却器,其中所述液体制冷剂入口和液体制冷剂出口是快速断开联接器。
7.根据权利要求2所述的通气式液体制冷剂飞机厨房冷却器,还包括在上表面上的数据端口。
8.根据权利要求1所述的通气式液体制冷剂飞机厨房冷却器,其中当所述冷却器以垂直定向安装在飞机厨房推车隔间中时,所述冷却器的深度为大致为四十二毫米。
9.根据权利要求2所述的通气式液体制冷剂飞机厨房冷却器,其中风扇速度基于所述飞机厨房推车隔间内的状况而被调节。
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US14/754,593 US10016055B2 (en) | 2014-07-08 | 2015-06-29 | Compact liquid cooled, air through galley chiller |
PCT/US2015/039408 WO2016007530A1 (en) | 2014-07-08 | 2015-07-07 | Chiller for an aircraft galley cart compartment |
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US10016055B2 (en) | 2018-07-10 |
EP3166848A1 (en) | 2017-05-17 |
WO2016007530A1 (en) | 2016-01-14 |
US20160007736A1 (en) | 2016-01-14 |
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