公开(公告)号：US20020085908A1

公开(公告)日：2002-07-04

申请号：US10004476

申请日：2001-11-16

发明人： Peter Tiemann

IPC分类号： F01D009/06 ,  F01D005/08

CPC分类号： F01D5/188 ,  F05D2260/201 ,  F05D2260/205 ,  F05D2260/2322

摘要： A gas turbine blade is used for closed steam cooling. A partition, preferably designed as a metal sheet, divides a first part cavity in the axial direction. This is done in such a way that steam is capable of being guided out of the first subspace into an inlet edge cavity and from this into a second subspace with an impact-cooling effect, This has the advantage that closed steam cooling is designed to be particularly simple and cost-effective in manufacturing terms, while at the same time the inlet edge has an aerodynamically favorable shape.

摘要翻译： 燃气轮机叶片用于封闭蒸汽冷却。 优选地设计为金属片的分隔件在轴向方向上分割第一部分空腔。 这样做的方式是使得蒸汽能够被引导出第一子空间进入入口边缘空腔，并且由此形成具有冲击冷却效果的第二子空间。这具有将闭合蒸汽冷却设计成为 在制造方面特别简单和成本有效，同时入口边缘具有空气动力学良好的形状。

公开(公告)号：US20010046441A1

公开(公告)日：2001-11-29

申请号：US09778042

申请日：2001-02-07

发明人： Thomas Charles Mashey

IPC分类号： F01D005/14 ,  F01D005/08

CPC分类号： F01D5/081 ,  F01D5/06

摘要： In a multi-stage turbine rotor, tubes are disposed in openings adjacent the rotor rim for flowing a thermal medium to rotor buckets and returning spent thermal medium. The tubes have axially spaced lands of predetermined wall thickness with thin-walled tube sections between the lands and of increasing thickness from the forward to the aft ends of the tubes. A pair of retention plates are carried on the aft end face of the aft wheel and straddle the tube and engage against a shoulder on the tube to preclude displacement of the tube in an aft direction.

摘要翻译： 在多级涡轮转子中，管被设置在与转子轮缘相邻的开口中，用于将热介质流动到转子桶并返回废热介质。 管具有预定壁厚的轴向间隔的平台，其中在平台之间具有薄壁管部分，并且从管的前端到后端增加厚度。 一对保持板承载在后轮的后端面上，并且跨过管并与管子上的肩部接合，以防止管在向后方向上的位移。

公开(公告)号：US20010022934A1

公开(公告)日：2001-09-20

申请号：US09769749

申请日：2001-01-26

发明人： Thomas Charles Mashey

IPC分类号： F01D005/08 ,  F01D005/14

CPC分类号： C23C28/321 ,  C23C28/34 ,  C23C28/347 ,  F01D5/084 ,  F01D9/06 ,  F01D25/18 ,  F05C2201/0463 ,  F05D2230/90 ,  F05D2300/21 ,  F05D2300/509 ,  F05D2300/611 ,  F16L58/08 ,  F16L58/14

摘要： Cooling steam delivery tubes extend axially along the outer rim of a gas turbine rotor for supplying cooling steam to and returning spent cooling steam from the turbine buckets. Because of the high friction forces at the interface of the tubes and supporting elements due to rotor rotation, a low coefficient of friction coating is provided at the interface of the tubes and support elements. On each surface, a first coating of a cobalt-based alloy is sprayed onto the surface at high temperature. A portion of the first coating is machined off to provide a smooth, hard surface. A second ceramic-based solid film lubricant is sprayed onto the first coating. By reducing the resistance to axial displacement of the tubes relative to the supporting elements due to thermal expansion, the service life of the tubes is substantially extended.

摘要翻译： 冷却蒸汽输送管沿着燃气涡轮机转子的外缘轴向延伸，用于将冷却蒸汽供给并从涡轮机叶返回废冷却蒸汽。 由于由于转子旋转而在管和支撑元件的界面处的高摩擦力，所以在管和支撑元件的界面处提供了低摩擦系数涂层。 在每个表面上，钴基合金的第一涂层在高温下喷涂到表面上。 第一涂层的一部分被加工以提供光滑的硬表面。 将第二陶瓷基固体膜润滑剂喷涂到第一涂层上。 通过由于热膨胀减小管相对于支撑元件的轴向位移的阻力，管的使用寿命显着延长。

公开(公告)号：US20010005480A1

公开(公告)日：2001-06-28

申请号：US09761635

申请日：2001-01-18

发明人： Yufeng Phillip Yu ,  Gary Michael Itzel ,  Victor H. S. Correia

IPC分类号： F01D009/06 ,  F01D005/08 ,  F01D005/18 ,  F03D011/00 ,  F03B011/00 ,  F01D011/00 ,  F01D025/08 ,  F01D025/16 ,  F01D025/18 ,  F04D029/04

CPC分类号： F01D25/10 ,  F01D5/187 ,  F01D11/24 ,  F01D25/08 ,  F01D25/12 ,  F05D2240/81

摘要： To control the temperature mismatch between the inner and outer bands and covers forming plenums with the inner and outer bands on sides thereof remote from the hot gas path, passages extend from the leading edge of the covers in communication with the hot gases of combustion to the trailing edge of the covers in communication with the hot gas flowpath. A mixing chamber is provided in each passage in communication with compressor discharge air for mixing the hot gases of combustion and compressor discharge air for flow through the passage, thereby heating the cover and minimizing the temperature differential between the inner and outer bands and their respective covers. The passages are particularly useful adjacent the welded or brazed joints between the covers and inner band portions.

摘要翻译： 为了控制内带和外带之间的温度失配，并且覆盖形成集气室，其侧壁上的内带和外带远离热气路径，通道从盖的前缘延伸，与燃烧的热气体连通 盖子的后缘与热气流路相通。 在每个通道中设置有与压缩机排放空气连通的混合室，用于混合燃烧的热气体和压缩机排放空气以流过通道，从而加热盖并最小化内带和外带之间的温差及其各自的盖 。 这些通道在盖和内带部分之间的焊接或钎焊接头附近特别有用。