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Blades of cyclone machines with radial band seals

A technology of seals and blades, which is applied in the field of blades of swirl machines, can solve the problems of weakened cooling efficiency and other issues

Active Publication Date: 2019-05-21
ANSALDO ENERGIA SWITZERLAND AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cooling efficiency may also be impaired by hot gas entering the shank area from the hot gas path

Method used

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  • Blades of cyclone machines with radial band seals
  • Blades of cyclone machines with radial band seals
  • Blades of cyclone machines with radial band seals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0069] figure 1 A first embodiment of a blade 1 is illustrated, eg a moving low pressure turbine blade for a gas turbine arrangement. figure 1 a shows a side view in the circumferential direction c of a swirler (not shown) along a radially inner section of the blade 1 . figure 1 The axes shown in a mark the axial direction a, the radial direction r and the circumferential direction c of the swirl machine. Further description refers to the axes defined in the respective descriptions.

[0070] The blade 1 comprises an airfoil 2 having a suction surface 3 and a pressure surface (not shown) joined together along a leading edge 4 and a trailing edge 5 . The radially inwardly extending end of the airfoil 2 joins an inner platform 6 connecting the airfoil 2 to a shank 7 at the radial end of the airfoil 2 . The shank 7 has at least one tang socket 8 defined as a region recessed into the shank 7 which is parted by the axial a of the platform 6 and by at least one radially directed ...

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PUM

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Abstract

The invention relates to blades of a swirling machine with radial seals. The invention relates to a blade for a swirling machine, the blade comprising an airfoil having suction and pressure surfaces joined to each other along the trailing and leading edges, a radially outwardly directed airfoil tip and a radially inwardly directed airfoil tip. a pointed end joining an inner platform connecting the airfoil to a shank at a radial end of the airfoil; and providing at least one shank socket extending axially from a portion of the platform and radially surrounding at least one radially extending edge extending from the trailing edge side of the shank and having a generally radially oriented first channel for receiving a seal; and radially from said shank socket Mounting piece extending inward. Characteristically, the first channel has a first hole on the surface of the shank oriented in the axial direction.

Description

technical field [0001] The invention relates to blades of cyclone machines. The blade includes an airfoil having suction and pressure surfaces joined together along a trailing and leading edge, a radially outwardly extending airfoil tip, and a radially inwardly extending end portion that An internal platform is attached that connects the airfoil to a shank at a radial end of the airfoil. The shank includes at least one shank pocket whose radially outwardly extending point is surrounded by a portion of the axially extending platform. At least one radially extending edge extends from the trailing edge side of the shank and has a radially oriented channel for receiving a seal. The mount extends radially inwardly from the socket. Background technique [0002] The blades of a swirl machine, such as a compressor unit or a turbine stage of a gas turbine arrangement, are typically arranged circumferentially on a plurality of axially ordered rotor wheels. The platform of each bla...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D5/14
CPCF05D2240/57F05D2260/30F01D11/006F05D2240/81F01D11/005F01D11/00F01D5/30F05D2250/75
Inventor S.希文S.马瓦尼J.陶S.蒂博斯V.斯特发尼斯S.贾斯特R.科勒尔
Owner ANSALDO ENERGIA SWITZERLAND AG
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