CN101485063B - 旋转式空气对空气能量回收和干燥除湿系统中旋转轮的系统和方法的改进 - Google Patents
旋转式空气对空气能量回收和干燥除湿系统中旋转轮的系统和方法的改进 Download PDFInfo
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Abstract
本发明涉及转动传输轮提供两个逆流气流间的热量和/或水分交换的系统和方法。所述系统包括:框架;包括传输基体的传输轮,所述传输基体相对所述框架安装并且可转动地固定,使得所述轮能够转动通过所述两个逆流气流,以及使得热量和/或水分能够在所述两个逆流气流之间传输;第一多个马达部件,其相对所述轮固定地安装,使得所述第一多个的部件起马达的转子的作用;以及第二多个马达部件,其相对所述框架安装,使得所述第二多个的部件起马达的定子的作用;其中供应至第二多个的马达部件的功率引起所述传输轮转动通过所述两个逆流气流。
Description
相关申请
本申请涉及2006年1月19日提交的美国临时专利申请60/760,287,并要求该美国临时专利申请的优先权。
技术领域
本公开总得涉及能量和水分传输轮(transfer wheel),更具体地,涉及用于旋转式空气对空气能量回收及主动和被动加湿和除湿系统中对传输轮转动进行的控制方法及系统的改进。
背景技术
众所周知,能量和水分传输轮用于影响两个逆流气流之间的热量和/或水分传输。这种传输轮通常用于控制建筑物内空气的温度和/或湿度,其中所述逆流气流可以是进入空气和流出空气。
驱动马达通常安装为与传输轮相邻并通过带轮和传动带耦合至传输轮,使得传输轮在操作期间能够绕其轴线被旋转地驱动。此外,驱动马达通常选自此类应用所通常采用的大组(large group),特定的选择取决于各种因素,诸如轮的尺寸和重量以及可用的建筑物功率供应,所述建筑物功率供应的范围能够从120VAC到575VAC,并通常具有50Hz或60Hz、单相或三相的频率。
据此,希望提供能够在预期的电源和工作频率的全部范围内运转的单个马达,以及提供所需的可变旋转速度。
发明内容
用于转动传输轮的系统和方法提供两个逆流气流间的热量和/或水分交换。所述系统包括:框架;包括传输基体(transfer matrix)的传输轮,所述传输基体相对于框架安装并可转动地固定,使得所述轮能够转动通过这两个逆流气流,以及使得热量和/或水分可以在这两个逆流气流间传输;第一多个马达部件和第二多个马达部件,所述第一多个马达部件相对于轮固定安装,使得该第一多个的马达部件用作马达的转子,所述第二多个马达部件相对于框架固定地安装,使得该第二多个的马达部件用作马达的定子;其中,供应至该第二多个的马达部件的功率使传输轮转动通过两个逆流气流。
附图说明
参照附图,其中具有相同附图标记的元件在全文表示类似元件,其中:
图1是逆流式热交换器的横截面侧视图,所述逆流式热交换器布置在逆流式热量和/或水分交换系统中,所述逆流式热量和/或水分交换系统布置在逆流式空气系统中;
图2是逆流式热量和/或水分交换系统的框架和轮的正视图;
图3是逆流式热量和/或水分交换系统中所使用的组装的无刷直流马达装置的透视图;
图4是图3的马达装置的分解视图;
图5是用于逆流式热量和/或水分交换系统的步进马达装置的正视图;以及
图6A—6C是图5所示的步进马达装置所使用的极靴(pole piece)组件的透视、侧视和正视图。
具体实施方式
参见图1和图2,本发明提供一种热量和/或水分传输基体10,其用作逆流式热量和/或水分交换系统14中的热量和/或水分传输轮12的一部分。传输轮12绕旋转轴线18可转动地安装在框架16中。用窄空气通道构造传输基体10,以便在两个逆流气流间传输热量和水分。传输基体10可以进一步包括一种或多种除湿材料,除湿材料用于增强从较潮湿空气到较干燥空气的水分传输。框架16包括基本上包围传输轮12的单个密封板或多个板片,使得基本上所有逆流气流中的空气将穿过传输基体。
如图1和图2所示,交换系统14布置有气流系统22。系统22可以包括由壁28分隔开的流动管道24和逆流管道26。第一气流由流动管道24接收,而第二气流由逆流管道26接收。正如它们的名字所隐含的,流动管道24和逆流管道26引导气流以相反方向通过轮12。一个气流比另一个气流更热和/或更湿,使得当该轮转动时,一些热量和/或水分通过该轮传输。备选地,气流系统可以包括机柜,机柜设计成有两个逆流气流通过并且构造成使得传输轮12和框架16可以安装在其中。
传输轮12安装在气流系统22中,用于通过气流管道24和逆流管道26的同时转动,传输轮12的外周在传输轮12和框架16之间形成近似的空气密封以便确保流过基体,以及在气流管道24和逆流管道26之间形成近似的空气密封以防止管道24和管道26之间的泄漏。传输轮周边周围的密封确保在该轮旋转时空气流过基体。
传输轮12的传输基体10的窄空气通道在传输轮12的面30和面32之间延伸。据此,第一气流通过传输轮12从第二面32到第一面30,而第二气流通过传输轮12从第一面30到第二面32。当传输轮旋转时,热量和/或水分能够在两个气流之间交换。
根据本发明的教导,去除了单独的驱动马达、带和带轮,传输轮12和框架16被配置和安置成包括相对传输轮12和框架16中的每一个固定地安装的马达部件,使得相对其固定地安装的马达部件还起马达的转子的作用,而相对于框架固定的马达部件起马达的定子的作用。当功率提供给定子马达部件时,引起轮12转动通过两个逆流气流。
所采用的马达部件将取决于马达的设计。优选地,相对轮12固定的马达部件起转子作用,相对框架16固定的马达部件起定子作用。使用一个或多个定子电磁极段或电磁极靴,定子优选地仅在全部360度轮圆周的一部分上被激励。这还可以被称为“不完全”的定子或定子段。对这种马达有许多种设计。例如,无刷马达设计能够采用带有传感器的无刷直流马达、没有传感器的直流马达或直流步进马达的形式,直流步进马达是无刷直流马达的一种形式。所有这些马达使用电子控制器来执行所希望的功率分配。一种适于提供这种控制的控制器是由安森美半导体(On Semiconductor)制造的MC33033、NCV33033。参见无刷直流马达控制器,出版订购号:MC33033/D,2004年四月,第七次修订,安森美半导体出版,第1-24页(Brushless DC Motor Controller,Publication OrderNumber:MC33033/D,April,2004,Rev.7,published by On Semiconductor)。
图3和图4是逆流式交换系统14的轮12和框架16的一个实施例的示图。将系统修改为包括马达部件以便提供无刷直流马达操作。特别地,将轮12修改为包括第一多个马达部件和第二多个马达部件,第一多个马达部件相对轮固定,使得第一多个马达部件中的部件起无刷直流马达的转子的作用,而第二多个马达部件相对框架固定,使得第二多个马达部件中的部件起所述马达的定子的作用。提供功率转换器70(必要时,包括变压器)用于将可用功率转换为与用于驱动轮12的适合的功率参数一致。尽管功率转换器能够固定在别处,但是所示的功率转换器固定至框架16。此外,类似地提供换向控制器72并且该换向控制器示出为连接至框架16。定子线圈74和护铁(back iron)组件76相对框架16固定。使用至少三个定子线圈74,它们固定至框架16使得三个线圈74定位得邻近轮12的边缘。盖82用于覆盖换向控制器72和线圈74。最后,多个换向传感器80相对框架16固定,用于在轮12绕其轴线18旋转时检测其位置。可以安装传感器80使得它们如所示地与定子线圈74间隔开,或者如所希望地安装在线圈74之间或之中。当采用没有传感器的无刷直流马达设计时,还可以去除传感器80,如下面进一步描述的。此外,对于大的轮,可以采用额外的定子线圈组74以提供额外的转矩。优选地,当使用三相马达装置时,提供至少三个这种传感器,当使用四相马达装置时,使用至少两个这种传感器。
还将图3和图4所示的轮12修改为包括马达部件。优选地,为起无刷直流马达的作用,优选地该轮设有护铁形式的连续底座条(base strip)84或者绕该轮的边缘连续布置的类似铁磁材料以及用于提供多个绕该边缘分布的永久磁段的弹性嵌段电枢磁条(segmented armature magnet strip)86。作为条86的备选,该轮可以设有绕该边缘分布的多个分开的永久磁体。底座条84给磁条或永久磁体提供磁体通路。如图3所最佳示出的,磁条86(或如果使用永久磁体的备选装置)提供交替北极和南极的电磁模式,当一个绕轮12的边缘行进时(如图3所最佳示出的)。
操作中,外部功率被输送至功率转换器70,功率转换器70接着提供适合参数中的适合功率至控制器72。控制器72提供所需的驱动信号至定子线圈74,以便产生通过轮边缘特别是电磁条86和底座条84的脉冲通量场。这产生引起轮转动的电磁力(EMF)。能够对控制器72提供输入,使得轮的转动速度可以容易地控制,基本适应交换系统操作的所有预期模式并确保当不希望转动时轮不会转动。
http://en.wikipedia.org/wiki/Brushless_DC_electric_motor(2007年1月12日)中描述了使用传感器类型的无刷直流马达以及没有传感器的无刷直流马达。如所指明的,控制器用于指引转子转动。对于使用传感器的设计,控制器使用换向传感器装置来确定转子的方向/位置(相对定子线圈)。一些设计使用霍耳效应传感器,但也能够使用诸如旋转编码器的其它装置来直接测量转子的位置。其它设计测量在未被驱动线圈中的反电动势(back EMF)以推断转子位置,而不需要单独的换向传感器,因此通常被称为“无传感器的”控制器。
有传感器类型和无传感器类型的无刷直流马达的典型控制器包括3个用于驱动大电流直流电源的双向驱动器。驱动器通常由逻辑电路控制。简单的控制器采用比较器来确定何时输出相位应当提前,而更多改进的控制器采用微控制器来管理加速、控制速度和调整效率。用于基于反电动势来检测转子位置的无传感器直流马达的控制器在初始运动上面临特别的挑战,因为当转子静止时不产生反电动势。这经常通过从任意相位开始转动来实现,如果发现错误就跳至正确相位。这能够引起马达暂时向后运转,给启动程序增加更多的复杂性。
无刷直流马达能够以几种不同的物理构造形式构造:在“传统”(也称为“内转子”(inrunner))构造中,永磁体被安装在旋转电枢(spinningarmature)(转子)上。多个定子线圈被设置得与轮相邻。线圈的数量取决于所需的相位和功率数量。
如所述的,改进的交换系统14所使用的无刷马达设计可以为步进马达的无刷马达。图5示出了构造为步进马达的逆流式热交换器的实施例,其中框架16支撑线圈和极靴组件90,并且轮12支撑连续护铁(铁磁材料制成)底座条92和磁条94(或备选地为永磁体)。磁条(或替代磁体)的极性在轮边缘周围的北和南极之间交替。图6A—6C详细示出了线圈和极靴组件。如所示,每个组件90包括带有引线98的中央线圈96。线圈96被布置在两个极齿(pole tooth)100之间,当安装在框架16上时,线圈径向地从一个极齿移向另一极齿。极齿和磁条(或替代磁体)的交替极性有偏移量,使得任一时间所有的极齿将不与磁条(或替代磁体)的北和南极对齐。能够从适合的功率转换器(未示出)施加AC信号至线圈96。
如http://en.wikipedia.org/wiki/Stepper_motor(2007年1月12日)所述,步进马达的运转不同于带有传感器的无刷直流马达。当施加电压至定子上的激励线圈时,带有传感器的无刷直流马达简单地旋转。另一方面,步进马达实际上具有多个安置在中央转子周围的电磁体。为使马达轴转动,通过设置在定子上的线圈和极靴装置给第一个电磁体功率,这使得转子以预定角增量转动。当定子极靴上产生的磁场与转子上提供的磁场对齐时,它们会从下一个电磁体稍微地偏移。所以当下一个电磁体打开、第一个电磁体关闭时,转子稍微转动以与下一个电磁体对齐,自此重复该步骤以便引起转动。那些稍微转动中的每一个称为“步”。以那种方式,马达可以被转动精确的角增量,或者通过施加AC驱动信号至设置在定子上的线圈,转子可以连续转动。对于步进马达的电磁感应圈有两种基本的装置:双极和单级。
步进马达能够视为带有增加的极数量(既在转子上又在定子上)的直流马达,注意它们没有公分母(common denominator)。此外,带有在转子和定子上的许多极齿的软磁材料以便宜的成本成倍地增加极数量(磁阻马达)。理想的是,由正弦电流驱动以允许无级运转。脉宽调制通常用于调节平均电流。双极控制器可以在电源电压、接地和断开之间转换。单级控制器仅可以连接或断开电缆,因为电压为硬接线。单级控制器需要中心抽头的线圈。为达到全部额定转矩,在每一步中,步进马达中的线圈必须达到它们的全部额定电流。
因此,已经描述了根据本公开提供的新的、改进的热量和/或水分交换系统和方法。通过说明性的方式而不是限制性的方式介绍了说明书中所描述的示例性实施例,在不背离较广泛的方面以及如所附权利要求所述的本发明的精神或范围的情况下,本领域技术人员可以实现各种修改、结合以及替换。因此,提供马达部件至逆流式热量和/或水分交换系统的轮12和框架16消除了对驱动马达、带和带轮的需要。此外,需要较少的设计选择来覆盖所有可能的应用,包括可能的轮尺寸范围和电源范围。此外,可以从零至完全额定转速更好地控制轮12。
此处所披露的新的、改进的热交换系统和本公开的方法以及所有它们的元件,包含在下述权利要求的至少一个的范围中。不意图对目前所披露的系统和方法的元件放弃权利要求,它们也不意图对权利要求的解释进行限制。这些权利要求中,除非特别声明,单数地引用元件意指“一个或更多”,而不是意指“一个且仅一个”。本领域普通技术人员已知的或今后将要知道的、本发明各处所描述的各种实施例的元件的所有等同的结构和功能在此处清楚地以参考的方式加入,并且旨在被权利要求所包括。此外,这里披露的任何内容都不是意图贡献给公众,不管在权利要求中是否清楚地记载了此类披露。权利要求要素不是根据35U.S.C.§112第6段的规定解释的,除非使用“用于…的装置”清楚地记载所述要素或者在方法权利要求的情况下使用短语“用于…的步骤”记载所述要素。
Claims (9)
1.一种用于在两个逆流气流之间提供热量和/或水分交换的系统,包括:
框架;
包括传输基体的传输轮,所述传输轮相对所述框架安装并且可转动地固定,并且所述传输基体具有窄空气通道,用于在两个分开的、逆流气流之间传输热量和水分,所述传输轮同时转动通过流动管道和逆流管道并且使得热量和/或水分在所述两个逆流气流之间通过所述基体,该流动管道和逆流管道设置成以相反方向引导所述两个逆流气流通过所述传输轮;
传输轮周边周围的密封,所述传输轮的外周在所述传输轮和所述框架之间形成近似的空气密封以便确保当所述轮转动时气流通过所述基体,以及在所述流动管道和所述逆流管道之间形成近似的空气密封以防止所述流动管道和所述逆流管道之间的泄漏;和
马达,配置和布置成转动所述传输轮并且包括第一多个马达部件和第二多个马达部件,所述第一多个马达部件相对所述轮固定地安装,使得所述第一多个的马达部件用作马达的转子,所述第二多个马达部件相对所述框架固定地安装,使得所述第二多个的马达部件用作所述马达的定子;
其中所述马达部件被配置和布置成供应至所述第二多个的马达部件
的功率向所述传输轮提供足够的转矩从而使所述传输轮同时转动通过所述两个逆流气流。
2.如权利要求1所述的系统,其中所述第一多个的马达部件被配置成用作转子,所述第二多个的马达部件被配置成用作无刷马达的定子。
3.如权利要求1所述的系统,其中所述马达部件包括永磁体。
4.如权利要求3所述的系统,其中所述第二多个马达部件包括相对所述框架配置和安装的定子磁场线圈。
5.如权利要求1所述的系统,其中所述第一多个马达部件的部件被配置成用作转子,所述第二多个马达部件的部件被配置成用作带有传感器的无刷直流马达的定子。
6.如权利要求1所述的系统,其中所述第一多个马达部件的部件被配置成用作转子,所述第二多个马达部件的部件被配置成用作不带传感器的无刷直流马达的定子。
7.如权利要求1所述的系统,其中所述第一多个马达部件的部件被配置成用作转子,所述第二多个马达部件的部件被配置成用作步进马达的定子。
8.如权利要求1所述的系统,其中所述传输基体用于在逆流气流之间传输水分,以便增强所述气流之一的湿度。
9.如权利要求1所述的系统,其中所述传输基体用于在逆流气流之间传输水分,以便减少所述气流之一的湿度。
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PCT/US2007/001556 WO2007117345A2 (en) | 2006-01-19 | 2007-01-19 | Improvements in system for and method of rotating wheels in rotary air-to-air energy recovery and desiccant dehumidification systems |
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BRPI0706700A2 (pt) | 2011-04-05 |
RU2008133993A (ru) | 2010-02-27 |
EP1974438A2 (en) | 2008-10-01 |
CN101485063A (zh) | 2009-07-15 |
JP2013110963A (ja) | 2013-06-06 |
EP1974438A4 (en) | 2013-07-17 |
CA2636731A1 (en) | 2007-10-18 |
WO2007117345A3 (en) | 2008-11-27 |
RU2427065C2 (ru) | 2011-08-20 |
US20070273240A1 (en) | 2007-11-29 |
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JP2009524400A (ja) | 2009-06-25 |
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