Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Assembly type nozzle diaphragm

一种喷嘴隔板、隔板的技术，应用在发动机制造、机器/发动机、定子等方向，能够解决难降低成本、降低焊接成本、难自动化焊接等问题，达到高涡轮分级效率、减少更换操作的效果

Inactive Publication Date: 2009-04-08
KK TOSHIBA
View PDF0 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method also inherently has its limitations
[0015] (2) About cost: Since there are many welding steps, it is difficult to achieve cost reduction
Therefore, even if the material cost and processing cost are effectively reduced, there is a limit to the cost reduction
In addition, since it is difficult to achieve 100% mechanized and automated welding, it is difficult to reduce the welding cost itself

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
  • Assembly type nozzle diaphragm
  • Assembly type nozzle diaphragm
  • Assembly type nozzle diaphragm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0076] Embodiments of the assembly type nozzle diaphragm and assembly method of the present invention will be described below by reference numerals attached to the drawings and with reference to the drawings. In various embodiments, fabricated nozzle diaphragms are employed in steam turbines. The reference ST in the figure represents the steam flow inside the steam turbine.

[0077] Figure 31 shows multiple stages of an axial flow steam turbine 100 with fabricated nozzle baffles. Each nozzle vane 104 is connected to the diaphragm outer ring 102 and the diaphragm inner ring 103 , wherein the diaphragm outer ring 102 is connected to the turbine casing 101 , thereby forming nozzle vane flow passages. A plurality of turbine moving (rotor) vanes 106 are arranged downstream of the nozzle vane flow path. The moving blades 106 are built or fitted on the outer periphery of the rotor wheel 105 at predetermined intervals in the circumferential direction, and a cover 107 for preventing ...

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 assembly type nozzle diaphragm comprising a diaphragm outer wheel inner-diametrically opened and having an inner-peripherally continuous groove, and a nozzle vane having at one end thereof a diaphragm outer wheel implanting section and at the other end thereof a diaphragm inner wheel implanting section fitting together with the nozzle vane, wherein, the diaphragm inner wheel implanting section forms a diaphragm inner wheel. According to the above construction, it is possible to provide an assembly type nozzle diaphragm simplified by applying improvements to the construction of a turbine nozzle and capable of easy assembly without welding operation.

Description

[0001] This application is a divisional application of a Chinese patent application whose applicant is Toshiba Co., Ltd., with application number 02814568.2, and titled "Assembled Nozzle Separator and Method for Equipping the Nozzle Separator". Herein, all content of this Chinese patent application is inserted by reference. technical field [0002] The invention relates to an assembled nozzle diaphragm applied to a steam turbine and a method for assembling the nozzle diaphragm. Background technique [0003] Typically so-called axial flow steam turbines are used, having high power and comprising multiple stages arranged along the direction of steam flow, each stage comprising turbine nozzles (turbine stationary (stator) blades) and turbine moving or moveable (rotor) blades The combination. [0004] The axial flow steam turbine is roughly classified into a reaction type and a push type. [0005] The push type steam turbine utilizes each turbine nozzle to cause steam thermal ...

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): F01D9/02F01D9/04F01D25/24
CPCF01D9/042F05D2230/61F01D25/246F05B2240/10F05B2230/601F05D2240/10Y10T29/49323F01D9/02
Inventor 佐佐木隆仲摩裕司今井健一
Owner KK TOSHIBA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com