Check patentability & draft patents in minutes with Patsnap Eureka AI!

Axial compressor

A technology for axial flow compressors and rotating shafts, which is applied in the direction of axial flow pumps, mechanical equipment, engine components, etc., and can solve problems such as rusting and leakage of sliding parts, regardless of the sealability of variable stator blades and casings, and achieve suppression Leakage, the effect of improving reliability

Active Publication Date: 2015-02-11
MITSUBISHI POWER LTD
View PDF9 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, it is practical to hardly consider improving the sealing performance of the sliding part between the variable vane and the casing.
Therefore, especially when liquid droplets such as water are sprayed inside a compressor equipped with variable vanes, the liquid droplets caused by the pressure difference inside and outside the housing leak from the variable vane mechanism to the outside of the housing. In addition, there is a concern that the sliding part between the rotating shaft of the variable vane and the shell surface may rust due to corrosion over a long period of time, and the reliability of the equipment of the variable vane may decrease.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Axial compressor
  • Axial compressor
  • Axial compressor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Embodiments of the present invention will be described below using the drawings. First, use figure 1 A configuration example of a gas turbine system including an air suction spray mechanism will be described. figure 1 This is a simplified overall configuration diagram of a gas turbine system equipped with a suction spray mechanism.

[0021] The gas turbine system shown in this figure includes a compressor 1 that compresses air to generate high-pressure air, a combustor 2 that mixes the compressed air with fuel and burns them, and a turbine 3 that is rotationally driven by high-temperature combustion gas . The compressor 1 and the turbine 3 are mechanically connected to a generator 4 via a rotating shaft.

[0022] next, yes figure 1 The flow of working fluid in a gas turbine system is described. Air 11 as a working fluid flows into the compressor 1 , is compressed by the compressor 1 and flows into the combustor 2 as high-pressure air 12 . In the combustor 2 , high...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An axial compressor includes: a spray nozzle (32) that supplies droplets to a working fluid before compression or being compressed; a variable stator vane (56) having a stem section (94) inserted in an insertion hole (73) in a casing (54), the variable stator vane (56) having an angle of attack varied through sliding motion relative to the casing caused by rotation of the stem section; a sealing groove (93) provided in a sliding portion between a thrust washer (82) slid relative to the casing during rotation of the stem section and the casing; and a sealing member (92) housed in the sealing groove.

Description

technical field [0001] The present invention relates to a gas turbine or industrial axial flow compressor. Background technique [0002] During operation of the gas turbine, such as in summer, when the atmospheric temperature is high, the suction density decreases, and the output of the gas turbine decreases. For this output reduction, for example, there is a method of spraying liquid droplets such as water onto the intake air of the compressor with a spray nozzle to increase the intake air density and improve the gas turbine output by the effect of intake air cooling. Furthermore, when the spray amount of the liquid droplets is increased to introduce the liquid droplets into the compressor, the efficiency of the gas turbine is improved by reducing the compression power due to the effect of intercooling. The tiny liquid droplets sent to the inside of the compressor together with the air flow are evaporated to the saturation temperature of each stage while passing between th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F02C7/143F02C7/28F01D25/12F01D17/16F04D29/56
CPCF02C7/1435F01D17/162F04D29/705F04D29/582F04D29/563F04D29/083F04D19/028F01D11/003F04D29/5846Y02T50/60
Inventor 高桥康雄明连千寻川村康太
Owner MITSUBISHI POWER LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com