CN1186539A - 动力生产装置及其建造方法 - Google Patents
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Abstract
本发明涉及一种动力生产装置(10)和方法。该动力生产装置包括:一烟囱(12);一在该烟囱中的管道(18),该管道具有一出口和入口;和一太阳能收集器(30),它具有与该烟囱连接的一出口,其特点是:太阳能收集器输出口与管道入口相连;一转子(50)在上述出口中;以及管道与烟囱中心线(A)偏离。在烟囱中设置一管道使该装置能够分步骤地建设,并允许在整个装置完成前输出动力。
Description
本发明涉及一种动力生产装置及其建造方法,虽然该装置主要目的是用于太阳能发电,但它也能由其它能源如地热和/或风力运行,并可具有其它用途,如在物品上产生空气流进行干燥。
本发明的方法对于建造大规模动力生产装置具有极大用途,以生产例如100MW以上的电力供当地,全国或出口用。
在本说明书中,所用的‘上’和‘下’等词应理解为相对于重力方向。
许多动力生产装置,如用于全国性电网的电厂需连续使用不可再生的资源,如煤,石油或天然气,这些必须运输到电厂。其它电厂,如水电装置,仅可设置在一个具有天然或人工水头的位置,并且这个水头可能不便于获得。在工程完成之前,没有令人满意的装置检查该装置是否会达到技术要求。
动力装置建设耗资巨大。为了偿还投资,需要生产和销售电力,但是用已知的建设方法,在完工前动力装置不能生产动力,对于200MW或更大的大型装置要在建设开始后三年或更多的时间才能生产。因为长的偿还时间,订购新的动力装置的人不愿花钱投资可能提供节约但并未经证明的新技术,这些新技术只有到最后建设完成后才可证实。
法国专利2,531,753公开了一动力生产装置,它包括:一个烟囱,具有一中心轴线;在该烟囱中的一管道,具有与烟囱中心轴线重合的一轴线,管道具有一入口和一出口;和一太阳能收集器,具有与烟囱连接的一出口。在烟囱顶上设置有一涡轮。
英国专利2,055,980A公开了一动力生产装置,它包括:一烟囱,具有一下入口和上出口,以向下入口引入空气,通过烟囱由上出口出来;和一安装在烟囱上的发动机,带有用空气流驱动该发动机的装置。有一个转子驱动该发动机,转子轴线水平并平行于空气流。
本发明提出的动力生产装置包括:一烟囱;一在烟囱中的管道,该管道具有一出口和入口;和一太阳能收集器,具有与该烟囱连接的一出口,它的特点在于:太阳能收集器输出端与管道入口相连,一转子在上述出口中,以及管道与烟囱中心轴线偏移。转子是风力驱动的,最好是一带外罩的、水平轴线的、压力分级风力涡轮的部分。
因为管道与烟囱的中心轴线偏移,在烟囱中能够设置一个或多个附加的管道,每个管道具有与一相应的太阳能收集器的出口连接的入口。
本发明的优点是,当第一个收集器和管道组装,就能生产动力,而不必等第二个和附加的收集器/管道安装好之后再生产。而且,动力装置的动力输出能够根据安装的收集器/管道组的数目进行控制,控制的最大组数由烟囱的直径(或许还有高度)所确定。
本发明提供的建造动力生产装置的方法包括以下步骤:沿一中心轴线建一烟囱;在烟囱内安装一管道,管道具有一入口和一出口;固定一太阳能收集器,该收集器具有一空气入口和一空气出口,该空气出口连接该烟囱;其特点是:将该空气出口连接到烟囱的入口;在该空气出口中安装一转子,从而使该转子由流入烟囱入口的空气转动;以及偏离上述中心轴线安装管道。最好太阳能收集器由该中心轴线径向延伸,并具有随着离中心轴线的距离的增加而增加的宽度,从而形成扇形,该扇形对的角至少是三度,最好至少十度。
如果太阳能收集器对角为十度,在烟囱周围可设有相似的三十六个收集器,并在烟囱中安装三十六个管道。但最好是将收集器和管道的数目限制为二十组。在另一实施例中,当最后的收集器(第20个)到位,准备进行最大的太阳能烟囱的输出时,早先装的十九个管道可除去。在又一实施例中,当最后的收集器(第20个)到位,准备进行最大的太阳能烟囱的输出,早先装的十九个转子可从太阳能连接器除去,一个或多个风动涡轮安装在烟囱中。
本发明的一个方面是起初建的烟囱具有达到设计的最大动力输出的直径。这样的烟囱的基础建成的强度能允许为分阶段增加动力输出直到设计的最大输出而增加烟囱的高度(具有标准的安全系数)裕度。
下面参考附图通过实施例介绍本发明。附图中:
图1是根据本发明的太阳能烟囱的剖面图,一单个太阳能收集器设置在烟囱中心轴线的径向,并有单个的管道,虚线示出整个完成后的烟囱的设计形状和大小;
图2是图1太阳能烟囱的平面图,但第二个收集器已到位,第二个管道已安装;
图3是一太阳能收集器中风动涡轮剖面图,带有气流控制;以及
图4是根据本发明的一个完成后的动力生产装置透视图。
图1的太阳能动力生产装置10提供200MW的输出。然而在建设的第一阶段完成后(如图1所示),装置10仅有1.75MW的能力,但却代表了就地可用的或出售的帮助偿还建设费的较大的动力输出。
第一实施例提出的装置被认为适合于整体的太阳能辐射平均为960瓦/平方米和环境温度平均为30℃的国家或地区。
这样的国家或地区的一个一般的200MW装置的设计规格可要求一个250米直径的烟囱,并建议该烟囱在初始建设中象建一已知动力装置那样建设。
然而对这个特定的动力输出的设计规格也可要求(a)一个高度为1000米的烟囱;(b)467公顷的太阳能收集器区;(c)9,300公顷太阳能水池热收集器区;以及(d)36个压力级风动涡轮,每个具有5.5MW的能力。但已认识到,能修改这个装置的设计,以致在能获得有用的动力前不需要满足这些要求的全部或者是任何一个要求,即,当投资较低时,就可生产动力,该投资只占按常规甚至在装置开始生产动力前(如电力)就需花出的投资的较小的比例。
如果条件改变而该装置不能在完成时达到它的全部200MW的指标,那么该装置可以按减低的指标继续满意地运行。
因此,按已知方式,在基础14上将烟囱12建到300米的高度,在地16中的基础14的深度为支撑烟囱最终全部高度所要求的深度。烟囱12具有围绕其中心轴线A的圆形地基。在本实施例中,地基的直径是250米。这是适于设计最大输出为200MW的动力装置的烟囱的计算直径。
本发明的特点是,在第一阶段,整个烟囱直径(本实施例为250米)不完全用于空气上流。该烟囱包括一个管道18,其目的下面将详细说明。管道18的位置从轴线A偏移。在本实施例中管道18固定到烟囱的内壁。
围绕烟囱的圆周设有数个烟囱入口20。如图所示,每个烟囱入口是方形截面,其面积与它所连接的管道18的面积相应。在另外的实施例中,开口是矩形的或圆的。如果烟囱入口与开口的形状和大小不同,开口可部分地由一具有烟囱入口的形状和大小的组件封闭。
每个烟囱入口起初是密封的不让空气进入。当建设时,通向第一管道18的入口与一个选择的烟囱入口20连接。然后去掉这个烟囱入口的密封或盖子。
与该选择的烟囱入口20对准是的一个已知设计的太阳能收集器30,它适当地包括一由金属支柱34支撑的透明顶部32,用粗或黑的垫覆盖太阳能收集器区36。环境空气可由入口38吸入,并在进入到相应的烟囱入口20之前被加热,在管道18中上升,之后消散到大气中。
在烟囱12中的空气流动不仅可由烟囱上下水平面的温差产生,而且可由气压差和外部的风引起。这些效应在另外的实施例中被加强,在此实施例中烟囱12的高度增加到图中虚线所示的尺寸。在另一实施例中,烟囱的外径随高度增加逐渐减小。
第一太阳能收集器30最好设置得使它的入口38面向主风。
在此实施例中,太阳能收集器30具有面积为12.9公顷的透明盖面,并有面积为465公顷的太阳能水池收集器区,该水池在用作太阳能收集器的区域周围形成沟槽,并盖有盖子42。
图4的完成后的太阳能动力装置包括20个太阳能收集器30和太阳能水池收集器区40,它有258公顷的(粗石或垫)遮盖面积和9,300公顷的水池区。但是在另一实施例中用的太阳能收集器(和水池)是大小不同的。在又一实施例中,太阳能收集器和水池的对角是不同的。
如图2所示,在第一阶段,完成了太阳能收集器30a,进行运转;在第二阶段,太阳能收集器30b在建设中,需要最后的顶部部分。但在某些场合可能希望在图2的状态中运行太阳能收集器30b,以致在最后的顶部装上之前太阳能收集器30b的(减小的)区域可用于生产电力。因此,可能有某些使用者倾向于建一个太阳能收集器的圆环,每个具有减小的(未完成的)顶部面积的太阳能收集器在需要时再增加顶部面积。
虽然空气流可有各种工业用途,实用中,太阳能收集器30中安装一风动涡轮50,涡轮50被支撑在轴54上,与轴线A相距165米。在这个实施例中,风动涡轮50具有两个叶片,其扫过的截面积为490平方米,额定功率为5.5MW,在其它的实施例中该涡轮可有四个或更多的叶片。但是,在第一阶段,风动涡轮50的输出人为地限制在1.75MW内,以使在第一风动涡轮50能运行之前,它的太阳能收集器不必建成为设计的完整尺寸。
烟囱直径为250米,截面约为49000平方米,使用扫过面积仅为490平方米的叶片的风动涡轮50的情况下,与现行的设计规则矛盾。因此在烟囱12内的空气会有突然减压,这又会使得空气流速降低,并使跨叶片的压降下降到叶片不能开始旋转的程度,或者如果旋转,也会慢慢地停止。为了克服这个问题,风动涡轮50的出口连接烟囱入口20,作为本发明的重要特征,随后连接到管道18。
向风动涡轮流动的空气流量部分地由它的配套的太阳能收集器30的大小和形状所决定。在第一阶段,仅建了单个的楔形或扇形的收集器30,它由烟囱12辐射出,边部39是用侧盖封闭的。如图4所示,即使在太阳能烟囱10全部组装的状态下,边盖39仍可保留在位使用,起着隔断向风动涡轮50的空气流的作用,以使它们可以分别地退出工作以进行维修或更换(太阳能烟囱不必关闭),并且边盖如果选择是刚性的,可帮助支撑顶部32。
在所示的优选实施例中,向风动涡轮50流动的空气体积是由跨收集器入口38的可动闸板控制,在太阳能收集器完成到它的整个尺寸之前,使风动涡轮能开始运行。但是,这些体积的空气可能不会全部产生有用的动力。因此如果风动涡轮是安装在具有方形或矩形边的箱中,一些体积的空气将碰撞到箱上。而且,如果该箱没有一个封闭结构包围,以阻止涡轮周围的空气流动,如在该涡轮和一个或多个收集器顶部32,侧盖39和地面(它们一同限定收集器空气流道,大约为625平方米)之间的空气流动,那么,可利用的空气流能量就会有进一步的减少。因此,作为本发明的另一特点,设置了一个罩52,它与风动涡轮入口连接,并具有一个内表面,这个内表面由大体等于收集器空气流道(如625平方米)的截面逐渐地、平滑地会合到风动涡轮入口处的截面(如490平方米),以使所有的或大致所有的进入太阳能收集器30的空气能够以层流流动,并使进入和通过涡轮50的摩擦损失最小。
涡轮50的出口邻近烟囱入口20。但在另一个实施例中,管道18可具有下端,其大小和形状使得可由相应的入口20支撑,管道端部直接与涡轮出口相配,防止空气流的损耗。
如图4所示,随后太阳能烟囱可通过附加另外的收集器30′完成,从而能与另外的管道18(它们中一些可捆绑到烟囱壁上,另外的可捆绑到现有的管道上,如果需要的话,以一个管道沿着轴线A)一起达到全部设计动力输出。如果在例如第一阶段完成后若干年时,要求更大的输出,那时可在烟囱12上建一向上的延长部分,例如达到虚线所示的高度。并且,如果希望的话,在这样增加烟囱的高度的情况下,在收集器顶部32上可增加另一排收集器,每个收集器具有它自己的涡轮。现在去掉闸板等可将入口38全部打开。
这个方法的重要优点是小规模的装置可以交工运行,而通过大概在若干年内分阶段地向该小规模的装置附加,可获得大规模的装置(发电量超过200MW)。该大规模的装置,可以预见,能够和使用非再生能源的气轮机,柴油涡轮,和燃煤装置有效地竞争。而且,在具有适当的太阳能辐射和风力水平的国家,当地如果没有那些能源,使用本发明最好。
Claims (4)
1.一种动力生产装置,包括:一烟囱;一在所述烟囱中的管道,所述管道具有一入口和出口;和一太阳能收集器,它具有与所述烟囱连接的一出口;其特征在于:所述太阳能收集器输出口与所述管道入口相连;一转子在所述出口中;以及所述管道从所述烟囱中心线偏移。
2.一种建造一动力生产装置的方法,包括以下步骤:绕一中心轴线建一烟囱;在所述烟囱内安装一管道,所述管道具有一入口和一出口;定位一太阳能收集器,所述收集器具有一空气入口和一空气出口,所述空气出口连接所述烟囱;其特征在于:将所述空气出口连到所述管道入口;在所述空气出口中安装一转子,以便流入所述管道入口的空气使转子转动;以及偏离所述中心轴线安装所述管道。
3.根据权利要求2所述的方法,其特征在于,所述烟囱增高,并将附加的管道装入所述烟囱,每个管道连接一个具有一风动涡轮的太阳能收集器。
4.根据权利要求3所述的方法,其特征在于,当所述的烟囱高度增加十倍后,将所述管道除去。
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JO1936B1 (en) | 1997-01-15 |
WO1996031698A1 (en) | 1996-10-10 |
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