CN111295812A - 用于能量的热电联产以供应小型外围设施的改进浸没系统 - Google Patents
用于能量的热电联产以供应小型外围设施的改进浸没系统 Download PDFInfo
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Abstract
本发明涉及一种改进浸没系统(S),其用于能量的热电联产以供应小型外围设施,包括:至少一个适于通过燃料供应以产生机械能的热机(2);至少一个交流发电机(A),其可操作地连接到所述热机(2)并且适于在输入中接收所述机械能并在输出中提供电能以供应所述外围设施;容纳所述至少一个热机(2)和至少一个交流发电机(A)的外部容器(1),所述系统(S)的特征在于,所述外部容器(1)包括内罐(12),所述内罐完全或部分地填充有流体(F),所述热机(2)和交流发电机(A)完全或部分浸没到所述流体中,以及与所述内罐(12)耦合的外罐(11)。
Description
本发明涉及一种改进的浸没系统,其用于能量的热电联产以供应小型外围设施。
更具体地,本发明涉及一种上述类型的系统,其被设计和制造为特别用于电能和热能的热电联产,以供应位于环境中的一个或多个外围设施,例如加热或冷却系统、水网等,具有减小的尺寸。
众所周知,当前用于能量的热电联产的系统包括热机、交流发电机、热回收装置,通常还包括用于管理所述热量的传导的控制面板。
特别地,为热机供应燃料以向交流发电机提供机械能,交流发电机又以交流电的形式产生电能。
在正常运行期间,发动机和交流发电机还会产生大量热量,这些热量会部分回收。
通常,热量通过技术供水传递给用户,例如加热系统、蓄热器等。
用户使用控制面板来调节和控制热量传导。
在已知的系统中,在燃烧过程中由燃料提供给热机的化学能被转化为约25%的电能和约75%的热能。
在产生的75%的热能中,一部分因辐射而损失,而另一部分因未能完全回收排气的热量而损失,最终以最佳实现达到的整体热效率和电效率大约等于引入热机的燃料的“超级发热量”的80%。
显然,已知的热电联产系统的特征在于热能的损失,可以替代地将其回收并用于其他目的。
已知系统的另一个问题是在运行速度下优化热机的功率曲线所需的排气系统的长度。
这些长度也可以达到3米,具有相当大的物理负担。
已知系统的另一个问题涉及在系统本身的操作期间从外部感觉到的机械噪声和振动。
鉴于上述问题,因此本发明的目的是通过回收大部分可用的热能来提高系统的效率。
本发明的另一个目的是提供一种热电联产系统,该热电联产系统易于使用并且具有减小的尺寸,从而也可以在家庭环境中使用所述热电联产系统。
本发明的另一个目的是使用膨胀器,该膨胀器允许显著减小排气系统的长度,从而使整个系统紧凑。
本发明的又一个目的是在系统运行期间尽可能地减少机械噪声和从外部可感知的振动。
因此,本发明的一个特定目的是一种改进的浸没系统,其用于能量的热电联产以供应小型外围设施,包括:至少一个适于通过燃料供应以产生机械能的热机;至少一个交流发电机,其可操作地连接到所述热机并且适于在输入中接收所述机械能并在输出中提供电能以供应所述外围设施;容纳所述至少一个热机和至少一个交流发电机的外部容器,所述系统的特征在于,所述外部容器包括内罐,所述内罐完全或部分地填充有流体,所述热机和交流发电机完全或部分浸没到所述流体中,以及与所述内罐耦合的外罐。
进一步根据本发明,所述内罐通过弹性支撑件耦合到所述外罐,所述弹性支撑件固定或放置在所述外罐的底部上。
仍然根据本发明,所述内罐包括所述热机和交流发电机的支撑结构,并且所述支撑结构通过防振元件耦合到所述内罐。
优选地,根据本发明,在所述外罐和所述内罐之间插入间隙。
进一步根据本发明,所述内罐包括可连接至所述热机的润滑系统,其包括双油箱,高压电路和低压电路连接至所述双油箱以通过润滑油馈送所述热机。
仍根据本发明,所述内罐包括由所述热机的内燃产生的排气的能量回收电路,所述能量回收电路包括:第一级,在所述第一级中,降低在所述热机中循环的流体的温度;第二级,在所述第二级中,减少污染物并使所述热机稳定到所建立的运行状态;第三级,在所述第三级中,降低所述热机的噪声;和第四级,在所述第四级中,膨胀所述热机的排气。
优选地,根据本发明,所述第一级包括围绕所述热机的排放收集器和主排气管的外壁和间隙。
进一步根据本发明,所述第二级包括用于减少污染排放的催化剂,其通过限制件连接到形状像文丘里管的膨胀器。
仍根据本发明,所述第三级包括:第一腔室,在所述第一腔室中发生气体的第一膨胀,从而降低温度;第二腔室,与所述第一腔室通过隔膜隔开,由两个输送管馈送,其中气体第二膨胀并进一步降低温度;具有金属编织层的消音器,用于降低噪声;和与下一级相连的连接管。
优选地,根据本发明,所述第四级包括膨胀和冷凝腔室,在该膨胀和冷凝腔室中发生热机的排气的第三膨胀。
为了说明性而非限制性目的,现在将根据本发明的优选实施方式,特别是参照附图,对本发明进行描述,其中:
图1示出了根据本发明的用于能量的热电联产以馈送小型外围用户的改进浸没系统的示意性侧面剖视图;
图2示出了根据本发明的系统的一部分的侧面剖视图;
图3示出了包括在根据本发明的系统中的降噪电路的另一侧面剖视图;
图4示出了包括在根据本发明的系统中的润滑电路的细节的侧面剖视图;
图5示出了根据本发明的系统的细节的另一侧面剖视图;
图6示出了包括在根据本发明的系统中的能量回收电路的细节的正视图;
图7示出了图6的电路的另一侧面剖视图;和
图8A、8B和8C示出了图6的电路的另一剖视图。
在各个附图中,相似的部分将由相同的附图标记表示。
参照附图,根据本发明的用于能量的热电联产的改进浸没系统S包括外部容纳罐1,该外部容纳罐1包括由间隙13隔开的外罐11和内罐12,和设置在所述内罐12上的第一热交换器42。
所述内罐12包括热机2、第二热交换器22、第三热交换器25、与所述热机2轴向连接的交流发电机A、润滑系统3、冷却电路4、热能回收电路6,和还用作降噪电路9、10的排气系统。
所述热机2在入口处被供应燃料,以在输出处产生机械能。
然后,将所述机械能输送到所述交流发电机A的输入,该交流发电机A在输出处产生交流电功率。
所述热机2包括盘21和第三热交换器25,盘21容纳有热机2运行所必需的润滑油,第三热交换器25包含用于冷却润滑油的技术供水,这将在下面详细描述。
所述内部容纳罐12部分地或完全地填充有流体F,例如透热油,其中所述热机2和交流发电机A被完全浸没。
所述流体F用于热交换,以减少所产生的噪声和振动,所述噪声和振动部分地由于电路的壁的脉动,部分地由于交流发电机A的振动以及由于热机2的内部组件的运行而受到的冲击而产生。
所述外罐11在其整个内表面上用热声绝缘材料绝缘,以减少热量和噪声通向外部,并其被支撑在缓冲器111上的地面T上。
所述内罐12通过固定或搁在所述外罐11的底部上的弹性支撑件112而搁置在所述外罐11的内表面上,由此所述内罐12可以自由振荡,从而释放热机2的残余机械脉动和机械振动,特别是在所述弹性支撑112上。
所述内罐12在底部设有防振元件121,在该防振元件121上支撑有支撑结构113,该支撑结构113支撑所述内罐12中包括的所有部件,从提供热机2脉动的第一阻尼。
所述间隙13既起到绝热作用,又起到流体F的收集作用,流体F可能会意外地从所述内罐12中逸出。
在流体F意外损失的情况下,这可以通过由龙头(tap)调节的出口导管114将其收集在所述外罐11的外部。
所述润滑系统3与容纳在所述容纳罐1中的流体F分开地操作,并且适于回收从热机2传递到容纳在润滑系统3中的润滑油的热量。
热机2具有非常长的不间断运行时间,因此必须提供足够量的润滑油和自动加满系统。
现在参照图4,所述润滑系统3包括双油箱31,高压电路和低压电路连接至该双油箱31,这允许在所述热机2中长期供油。
特别地,所述双油箱31包括与高压电路连接的高压腔室311和与低压电路连接的低压腔室312。
特别地,所述高压腔室311容纳要被引入到热机2的盘21中的润滑油。
所述高压电路包括与所述高压腔室311连通的入口导管和出口导管。
插入热机2中的泵(图中未显示)从盘21中吸取润滑油,并将其送至所述第三热交换器25的入口管317,在那里其将热量传递给技术供水并冷却。
如此冷却的润滑油被输送到所述第三交换器25的出口管313中,到达过滤器316中,然后进入高压腔室311中,然后通过热机2的入口管23重新进入热机2。
高压腔室311的存在使得可以增加在热机2中循环的润滑油的量,从而允许油的较少磨损,较低的消耗并因此具有非常长的不间断运行时间。
特别地,所述低压腔室312容纳储备的润滑油并且由控制阀314关闭以用于自动加满和更换润滑油,并且包括油位控制构件,其又包括带有集成式液位控制杆的盖315。
所述低压电路包括与所述低压腔室312连通的入口导管和出口导管。
特别地,润滑油供应管24将油供应到所述盘21。
所述控制阀314总是常开,并且当盘21中的油位降低时,所述供应管24保持未被覆盖。
由于所述供应管24连接至所述气密密封的低压腔室312,因此当所述管24未被覆盖时,空气进入管24,然后进入所述低压腔室312,从而使必要量的润滑油再次升高油位,直到覆盖供应管24。
为了更换润滑油,必须关闭控制阀314,以便在打开盖315时避免容纳在所述低压腔室312中的储备油完全落入盘21内。
技术供水进而通过管26从所述第二交换器22到达所述第三交换器25,以回收润滑油的热量,并继续通过出口管27流向排气系统10,这将在下面详细描述。
为了使所述内罐12中包含的流体F、发动机2的热壁、交流发电机A和排气系统10之间的热交换有效,有必要通过自然对流将热交换传递到强制对流。
这防止了流体F停留在壁上,从而形成位于在最热的点上不均匀的区域,这减慢了热量从热机2、交流发电机A和排气系统10到容纳在内罐12内的流体的传递。
现在参考图5,为了移动所述流体F,使用处理泵50,其具有通过抽吸或吸入构件5将流体F吸入到较温暖区域的功能,通过管道511将其输送到所述第二热交换器22,并且在将热量传递到技术供水之后,冷却后的流体通过管52被输送到位于排气系统10下方的处理扩散器53。
所述扩散器53还具有迫使流体F从底部到顶部移动的功能,有助于改善热交换。
由未在图中示出的外部泵移动的技术供水通过用户到达低温,并进入通过膨胀和冷凝腔室41中的管40,在那里与所述第一热交换器42汇合并继续通过所述第二交换器22中的出口管43。
在膨胀和冷凝腔室41中产生的冷凝水通过管44排放到外部。
在所述第二交换器22中,热交换发生在所述内罐12中容纳的流体F的热量与技术供水之间。
技术供水的路径继续通过所述第三交换器25中的所述管26,从而吸收润滑油的热量。
该路径通过出口管27一直延伸到能量回收电路6,在此发生排气膨胀,并在部分吸收热量后,通过管65从S系统流出,以馈送外部用户。
在扩散器53的区域中,有处理泵50的浮子(float)54,其冷却热机2。
特别地,所述浮子54吸取较冷的流体F的一部分,该部分从处理扩散器53流出并且将所述流体F输送到热机2,并且在吸收了热机的热量之后,输送流体通过在液位F之上的较温暖区域中的管55,该区域中有处理泵5的吃水(draft)。
如已经描述的,所述系统S还包括能量回收电路,用于由所述热机2的内燃产生的排气。
排气中所含的能量代表了热机2产生的热量的最大部分,约为所引入热量的35%。
排气中所包含的能量的所述回收电路6除了执行用于减小噪声、污染物和消耗的已知功能之外,还降低了与流体F接触的表面的温度。
排气的能量回收电路6包括四级。
参照图6、图7和图8,第一级被外壁63和间隙64围绕,从排气收集器69开始沿着热机2的主排放管68一直延伸到催化剂61的入口;第二级包括催化剂61和膨胀器62;第三级10包括带有主消音器的双腔室;第四级包括膨胀和冷凝腔室41和次级消音器83。
第一级是最热的,并且为了降低外壁63的温度,技术供水在间隙64中循环,其除了外壁63的冷却功能之外还回收热量以减少技术供水投入运行的次数,所述技术供水从所述第三交换器25通过出口管27到达,并离开管65通向用户。
在第一级中,定位含氧传感器66,该含氧传感器与雾化(carburetion)控制单元在闭合电路中工作,以确保热机2在所有运行条件下均以化学计量水平运行,从而减少了消耗和排放。
第二级包括用于减少污染排放的催化剂61,以及形状像文丘里管,但是其横截面变化很大的膨胀器62。
从排气收集器69出来的气体经过主排气管68之后,到达催化剂61并被传送到限制件67,在第一级中产生反压并增加气体速度,以使热机2稳定在所建立的运行速度下,以这种方式,减少了主排气管68的长度,其另外将具有更长、更大的长度,从而有效地增加了排气系统的整体尺寸。
气体然后到达膨胀器62的端部,该端部具有较高的截面增加,其除了具有抽取作用外,还有助于增加第三级的第一膨胀和降温。
第三级包括第一腔室7,在第一腔室7中,气体发生第一膨胀,从而降低温度;第二腔室8,与所述第一腔室7通过隔膜71隔开,由两个运输管供给,其中气体第二膨胀并进一步降低温度。
所述第三级10还包括具有用于降低噪声的金属编织层的消音器81,以及在第三级和第四级之间的连接管道82。
第四级包括所述膨胀和冷凝腔室41,其中热机2的排气第三膨胀,并且其从连接管82来,并且所述第一热交换器42位于其中,技术供水在第一热交换器42中通过,其通过外部泵移动,到达用户。
在膨胀期间,排气系统的端部部分中的气体冷凝,将热量的最后部分释放到所述第一热交换器42。
排气通过消音器83出来,该消音器设有用于减小噪声的金属网。
膨胀和冷凝腔室41设有用于冷凝水的排水管44。
技术供水继续向上到达所述第一热交换器42的出口管43以向所述第二热交换器22馈送。
膨胀和冷凝腔室41还有助于减小热机2的噪声。
所述系统S还包括用于所述热机2的操作的辅助系统。
特别地,还参考图3,在隔室B中,容纳有通往和来自外部用户的连接,所述连接还包括利用水系统和电气系统与燃料的连接。
电气系统、热机管理单元2和第一热交换器42容纳在隔室C中。
电池容纳在隔室D中。
隔室C和D通过入口喷嘴E和电池隔室D的通风和/或供应管14连接到外罐11的壁。
这些隔室连通并形成另一个腔室,该腔室用于稳定压力波,从而减小其峰值并进一步降低噪声。
现在参考图1和图3,所述降噪电路9包括外壳91、过滤器箱93和空气过滤器94,所述过滤器箱93设有与适当形状的接口管件932连通的入口931。
在过滤器箱93中又有节流阀体或流量计92和抽吸收集器96。
外壳91通过绝缘壁95与冷却流体分开,该绝缘壁95使冷却流体部分地与热量隔绝。
外壳91和间隙13构成了另一个体积,其将被用作亥姆霍兹(Helmholtz)谐振器,以减少低频噪声。
尽管存在绝缘壁95,外壳91中的空气还是非常热,因此,为了不损失动力,有必要使热机2的吸取尽可能少。
因此,过滤器箱93的入口931放置在与内罐12的内壁以及与喷嘴932相隔一定距离处以便留下一部分,其形成降噪电路9的谐振器的颈部。
接口管件932将来自隔室C和来自隔室D的空气直接传送到所述过滤器93的所述入口931中。
隔室C和D由入口喷嘴E从电池隔室的通风管14供应,这些隔室连通并形成另一个腔室,该腔室用于稳定压力波,减小其峰值,进一步降低噪声。
入口喷嘴E朝向系统S的下层区域定向,以进一步减弱感知到的声压。
从技术隔室C的外部环境吸入的空气通道系统除了具有降噪的功能外,还具有降低电气系统温度,使其保持稳定的功能,从而导致吸取空气的温度升高。
这种增加是非常有限的,并且相对于室温大约为一度的量级。
用于能量的热电联产以供应小型外围设施的改进浸没系统的操作如下。
当系统S进入操作时,所有电路如上所述开始操作。
馈送所述热机2的燃料中包含的能量一部分转化为机械电气能,并且一部分转化为热能。
机械电气能的量是所述热机2和交流发电机A类型的函数,而热能直接来自燃料的一部分,所述燃料未被所述热机2和交流发电机A以冷却、润滑、排气和辐射的形式使用,包括所述交流发电机A产生的热量。
由所述热机2产生的热能由用作热矢量的所述流体F传递。
在从所述系统S出来之前,包含在最终排气路径中的能量几乎全部在所述膨胀和冷凝腔室41中回收。
因此,考虑到由于必要的排气出口和从所述容纳罐1向外部环境的适度残余辐射而造成的小损失,将机电功率添加到回收的热功率中,所述系统S的整体效率接近所述燃料中所含的100%的超级发热量。
从上面的描述可以清楚地看出,本发明的一个优点是,通过使用流体作为载体,可以回收所述整个系统S的运行所产生的几乎所有热量。
本发明的另一个优点是通过使用所述流体和双罐来减少所述系统S对放置该系统S的外部环境的声学影响,因为这减少了振动并且此外防止从内箱罐漏的任何流体。
本发明的另一个优点在于所述能量回收电路6的结构,其使所述系统S更加紧凑。
本发明的另一优点是延长了所述系统S的维护与后续系统S之间的维护时间。
根据本发明的优选实施方式,已经出于说明性而非限制性的目的对本发明进行了描述,但是应当理解,本领域的技术人员可以在不脱离所附权利要求中所限定的相关范围的情况下引入修改和/或改变。
Claims (10)
1.一种用于能量的热电联产以供应小型外围设施的改进浸没系统(S),包括:
至少一个热机(2),适于被供应通过燃料以产生机械能;
至少一个交流发电机(A),其可操作地连接到所述热机(1)并且适于在输入中接收所述机械能并在输出中提供电能以供应所述外围设施;
外部容器(1),在其中容纳所述至少一个热机(2)和至少一个交流发电机(A),所述系统(S)的特征在于,
所述外部容器(1)包括:
内罐(12),其完全或部分地填充有流体(F),所述热机(2)和交流发电机(A)完全或部分浸没到所述流体中,以及
外罐(11),所述内罐(12)耦合到所述外罐。
2.根据前述权利要求所述的系统(S),其特征在于,所述内罐(12)通过固定或放置在所述外罐(11)的底部上的弹性支撑件(112)耦合至所述外罐(11)。
3.根据前述权利要求中的任一项所述的系统(S),其特征在于
所述内罐(12)包括所述热机(2)和交流发电机(A)的支撑结构(113),以及
所述支撑结构(113)通过防振元件(121)耦合到所述内罐(12)。
4.根据前述权利要求中任一项所述的系统(S),其特征在于,在所述外罐(11)和所述内罐(12)之间插入有间隙(13)。
5.根据前述权利要求中任一项所述的系统(S),其特征在于,所述内罐(12)包括能够连接至所述热机(2)的润滑系统(3),所述润滑系统包括双油箱(31),高压电路和低压电路连接至所述双油箱以馈送所述热机通过润滑油(2)。
6.根据前述权利要求中任一项所述的系统(S),其特征在于,所述内罐(12)包括由所述热机(2)的内燃产生的排气的能量回收电路(6),所述能量回收电路(6)包括:
第一级(63、64、69),在所述第一级中,降低在所述热机(2)中循环的流体的温度;
第二级(61、62),在所述第二级中,减少污染物并使所述热机(2)稳定到所建立的运行状态;
第三级(7、8),在所述第三级中,降低所述热机(2)的噪声;和
第四级(41、83),在所述第四级中,膨胀所述热机(2)的排气。
7.根据前述权利要求所述的系统(S),其特征在于,所述第一级包括围绕所述热机(2)的排放收集器(69)和主排气管(68)的外壁(63)和间隙(64)。
8.根据权利要求6或7中任一项所述的系统(S),其特征在于,所述第二级包括用于减少污染排放的催化剂(61),其通过限制件(67)连接到形状像文丘里管的膨胀器(62)。
9.根据权利要求6或8中任一项所述的系统(S),其特征在于,所述第三级包括:
第一腔室(7),在所述第一腔室中发生气体的第一膨胀,从而降低温度;
第二腔室(8),与所述第一腔室(7)通过隔膜(71)隔开,由两个输送管(72)馈送,其中气体第二膨胀并进一步降低温度;
消音器(81),具有用于降低噪声的金属编织层和与下一级相连的连接管(82)。
10.根据权利要求6或9中任一项所述的系统(S),其特征在于,所述第四级包括膨胀和冷凝腔室(41),在所述膨胀和冷凝腔室中发生所述热机(2)的排气的第三膨胀。
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IT102017000122951A IT201700122951A1 (it) | 2017-10-30 | 2017-10-30 | Sistema perfezionato ad immersione per la cogenerazione di energia per l’alimentazione di utenze periferiche di ridotte dimensioni. |
IT102017000122951 | 2017-10-30 | ||
PCT/IT2018/050195 WO2019087221A1 (en) | 2017-10-30 | 2018-10-15 | Improved immersion system for the cogeneration of energy for supplying small-sized peripheral utilities. |
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EP4082091A4 (en) * | 2019-12-26 | 2024-01-17 | Lavalley Industries, LLC | ELECTRIC GENERATOR WITH ELECTRIC BUS CONNECTABLE TO DIFFERENT ELECTRIC ENERGY SOURCES AND LOADS |
DE102021121074A1 (de) | 2021-08-13 | 2023-02-16 | Viessmann Climate Solutions Se | Kraft-Wärme-Kopplungsanlage |
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US4201523A (en) * | 1978-01-23 | 1980-05-06 | Olofsson Bjorn O E | Device for cooling and silencing of noise of a compressor or vacuum pump |
US4657290A (en) * | 1984-10-03 | 1987-04-14 | Linden Craig L | Co-generation plant module system |
US4735061A (en) * | 1987-09-02 | 1988-04-05 | Hsieh Sheng Ming | Energy-saving system for an engine-driving air conditioning system |
JPH07119480A (ja) * | 1993-10-21 | 1995-05-09 | Suzuki Motor Corp | エンジン作業機 |
US20120312503A1 (en) * | 2011-05-26 | 2012-12-13 | Arrieta Francisco A | Method And Apparatus For Cogeneration Heat Recovery |
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JPS61179355U (zh) * | 1985-04-30 | 1986-11-08 |
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2018
- 2018-10-15 WO PCT/IT2018/050195 patent/WO2019087221A1/en unknown
- 2018-10-15 EP EP18796506.6A patent/EP3704777B1/en active Active
- 2018-10-15 CN CN201880070727.3A patent/CN111295812A/zh active Pending
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US4201523A (en) * | 1978-01-23 | 1980-05-06 | Olofsson Bjorn O E | Device for cooling and silencing of noise of a compressor or vacuum pump |
US4657290A (en) * | 1984-10-03 | 1987-04-14 | Linden Craig L | Co-generation plant module system |
US4735061A (en) * | 1987-09-02 | 1988-04-05 | Hsieh Sheng Ming | Energy-saving system for an engine-driving air conditioning system |
JPH07119480A (ja) * | 1993-10-21 | 1995-05-09 | Suzuki Motor Corp | エンジン作業機 |
US20120312503A1 (en) * | 2011-05-26 | 2012-12-13 | Arrieta Francisco A | Method And Apparatus For Cogeneration Heat Recovery |
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