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    • 1. 发明申请
    • Steam Turbine
    • 汽轮机
    • US20080213091A1
    • 2008-09-04
    • US12033091
    • 2008-02-19
    • Heinrich LagederLucjan LukasikRalf GreimThomas SchreierMichael Fischer
    • Heinrich LagederLucjan LukasikRalf GreimThomas SchreierMichael Fischer
    • F01D9/00F01D25/24
    • F01D25/26F01D25/28F05B2260/301F05D2220/31F05D2230/21F05D2230/232F05D2230/235F05D2240/14
    • A steam turbine (10), especially in the form of a double-flow low-pressure steam turbine, includes a rotor (11) which is rotatably mounted around an axis (21) and which is concentrically enclosed with a spacing by an inner casing (13), forming annular steam passages (28, 29), and which has a multiplicity of rotor blades (12) which project into the steam passages (28, 29), wherein the inner casing (13) supports a multiplicity of stator blades (12) which project into the steam passages (28, 29) and which, for feeding steam to the steam passages (28, 29), has an inlet duct (15) which is directed around the axis (21) and tapers in the flow cross section. With such a steam turbine, the production is simplified by the inner casing (13) being formed as a welded construction, in which blade carriers (14), which delimit the steam passages (28, 29) and are produced as cast parts, are welded to additional forged or rolled steel elements (20) for fastening the stator blades (12′).
    • 特别是双流低压汽轮机形式的蒸汽涡轮机(10)包括转子(11),转子(11)围绕轴线(21)可旋转地安装,同轴地由内壳 (13),形成环形蒸汽通道(28,29),并且具有多个突出到所述蒸汽通道(28,29)中的转子叶片(12),其中所述内壳体(13)支撑多个定子叶片 (12),其突出到所述蒸汽通道(28,29)中,并且用于将蒸汽供给至所述蒸汽通道(28,29)的入口管道(15)具有围绕所述轴线(21)指向并在 流动截面。 通过这样的蒸汽涡轮机,通过形成为焊接结构的内壳(13)来简化生产,其中限定蒸汽通道(28,29)并被制成铸件的叶片承载件(14)是 焊接到用于紧固定子叶片(12')的另外的锻造或轧制钢元件(20)。
    • 2. 发明申请
    • Turbine
    • 涡轮
    • US20070207032A1
    • 2007-09-06
    • US11743211
    • 2007-05-02
    • Ralf GreimSaid Havakechian
    • Ralf GreimSaid Havakechian
    • F01D1/02
    • F01D1/06F01D1/04F01D5/28F05D2220/31Y10T29/4932
    • A turbine (100) of a turbine installation, especially a steam turbine of a steam turbine installation, includes at least one radial or diagonal turbine stage (120) with radial or diagonal inflow and axial outflow, and also at least one axial turbine stage (121-125) with axial inflow and axial outflow. The at least one radial or diagonal turbine stage (120) forms the first stage of the turbine (100) and the at least one axial turbine stage (121-125) is arranged downstream of the radial or diagonal turbine stage (121) as an additional stage of the turbine. The at least one radial or diagonal turbine stage (120) has a higher temperature resistance than the at least one axial turbine stage (121-125). The turbine (100) makes it possible to significantly increase the process temperature of the steam turbine installation, wherein measures for increasing the temperature resistance need only to be adopted for components of the radial or diagonal turbine stage (120).
    • 涡轮机设备的涡轮(100),特别是蒸汽涡轮机设备的蒸汽涡轮机,包括具有径向或对角线流入和轴向流出的至少一个径向或对角涡轮机台(120),并且还包括至少一个轴向涡轮机台 121 - 125)轴向流入和轴向流出。 至少一个径向或对角涡轮机台(120)形成涡轮机(100)的第一级,并且至少一个轴向涡轮机台(121-125)布置在径向或对角涡轮机台(121)的下游,作为 涡轮机的附加阶段。 所述至少一个径向或对角涡轮机台(120)具有比所述至少一个轴向涡轮机台(121-125)更高的耐温性。 涡轮(100)使得可以显着增加蒸汽轮机设备的过程温度,其中仅用于径向或对角涡轮机台(120)的部件的增加耐温性的措施。
    • 3. 发明授权
    • Turbomachine
    • 涡轮机
    • US07320574B2
    • 2008-01-22
    • US10936582
    • 2004-09-09
    • Ralf GreimSaid HavakechianAxel Pfau
    • Ralf GreimSaid HavakechianAxel Pfau
    • F01D11/08
    • F01D11/02F01D5/225F01D11/08F05D2240/11F05D2250/183F05D2250/184F05D2250/611F05D2250/70
    • A turbomachine has, on its inner casing (5) and on its shaft, recesses into which shrouds of rotor blades and/or of guide vanes (2a) protrude. The recesses are configured with wave-shaped contouring arrangements (10), which extend over their periphery. The contouring (10) extends over axially extending regions of the recess and consists of periodic elevations and depressions (14, 15) in the radial direction. They can also be effected on the radially extending regions of the recess and on the shrouds. The undulation-shaped contouring arrangements are used to counteract existing pressure fields and to reduce performance losses due to mixing processes between the leakage flow and the main flow.
    • 涡轮机在其内壳体(5)上及其轴上具有凹口,转子叶片和/或导向叶片(2a)的护罩突出到其中。 所述凹部配置有在其周边上延伸的波形轮廓布置(10)。 轮廓(10)在凹部的轴向延伸区域上延伸,并且包括在径向方向上的周期性高度和凹陷(14,15)。 它们也可以在凹部的径向延伸区域和护罩上进行。 波浪形轮廓布置用于抵消现有的压力场并且减少由于泄漏流和主流之间的混合过程引起的性能损失。
    • 4. 发明授权
    • Highly loaded turbine blading
    • 高负荷涡轮叶片
    • US06270315B1
    • 2001-08-07
    • US09395562
    • 1999-09-14
    • Ralf GreimSaid HavakechianHarald RomerPeter Szincsak
    • Ralf GreimSaid HavakechianHarald RomerPeter Szincsak
    • F01D900
    • F01D5/06F01D5/00Y10S416/02Y10S416/05
    • To reduce the number of stages of a turbine and, associated therewith, the overall length and the costs, blading having high stage-specific enthalpy transfer is to be used. In this case, the disadvantages of conventional highly loaded blading, such as increased secondary flow losses due to blades of large chord length and comparatively small height and the design of the turbine in the complicated chamber type of construction, are to be avoided. Resulting from these requirements is a highly loaded slim blade type of construction having considerable deflection. A turbine having blading according to the invention is characterized by a loading parameter RBL, which in the HRBL blading according to the invention, in contrast to conventional types of construction, is greater than 1.
    • 为了减少涡轮机的级数,并且与其相关联的总长度和成本,将使用具有高阶段特定焓传递的叶片。 在这种情况下,要避免常规高负载叶片的缺点,例如由于大弦长和较小高度的叶片所引起的二次流动损失增加,以及复杂室型结构中涡轮机的设计。 由这些要求导致的是具有相当大偏转的高负载薄型结构。 根据本发明的具有叶片的涡轮机的特征在于加载参数RBL,其在根据本发明的HRBL叶片中与常规类型的结构相比大于1。