Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of processing method of steam turbine diaphragm expansion groove

A processing method and expansion tank technology, applied in mechanical equipment, engine components, machines/engines, etc., can solve the problems of poor processing quality, high processing cost, long processing cycle, etc., and achieve the goal of improving production efficiency, saving cycle and cost. Effect

Active Publication Date: 2017-09-19
HARBIN TURBINE +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention aims to solve the problems of poor processing quality, high processing cost and long processing period in the processing process of the expansion groove of the existing steam turbine diaphragm, and provides a processing method for the expansion groove of the diaphragm of the steam turbine

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
  • A kind of processing method of steam turbine diaphragm expansion groove
  • A kind of processing method of steam turbine diaphragm expansion groove
  • A kind of processing method of steam turbine diaphragm expansion groove

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0030] Specific Embodiment 1: In this embodiment, the method for processing the expansion groove of the diaphragm of the steam turbine is realized according to the following steps:

[0031] 1. Selection of guide vanes at the expansion tank: select 6, 8, 10 or 12 guide vanes at the expansion tank of the partition, and the guide vanes make all the guide vanes of the expansion tank 6, 8, 10 or 12 equal parts ;

[0032] 2. Processing of the plug: process the plug according to the size of the expansion tank, the thickness of the plug is the same as the width of the expansion tank, and the length of the plug is 3 to 5 mm longer than the length of the expansion tank;

[0033] 3. The processing of the block: according to the thickness of the partition, process the block that blocks the expansion groove and the middle split surface. The thickness of the block is 10-20mm larger than the thickness of the partition;

[0034] 4. Cleaning: Discharge the guide vanes in a single layer in the...

specific Embodiment approach 2

[0044] Embodiment 2: This embodiment differs from Embodiment 1 in that the length of the plug piece in step 2 is 4 mm longer than the length of the expansion tank. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0045] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the thickness of the block in step 3 is 12-18mm larger than that of the partition. Others are the same as in the first or second embodiment.

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

PropertyMeasurementUnit
lengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a machining method for a steam turbine partition plate expansion tank and relates to a machining method of the expansion tank or a split face. The problems that the machining quality is poor, the machining cost is high and the machining period is long in an existing machining process of the steam turbine partition plate expansion tank are solved through the machining method. The machining method comprises the steps of (1) selection of a guide vane arranged at the expansion tank; (2) machining of a patch; (3) machining of a stopping block; (4) cleaning; (5) assembling; (6) spot welding; (7) reinforcement welding; (8) welding of the stopping block; (9) electron beam welding; (10) coping; (11) heat treatment; and (12) machining. According to the machining method, a traditional machining method of band saw machining or electrosparking machining for the expansion tank is omitted, the period of the traditional machining method is shortened and cost is reduced, and the production efficiency is greatly improved. The machining method is used for machining the steam turbine partition plate expansion tank.

Description

technical field [0001] The invention relates to a processing method of an expansion groove or a split surface. Background technique [0002] At present, the electron beam welding clapboard expansion groove and the mid-section surface of the self-contained crown swing plate are processed by wire cutting or band sawing. During the processing, peeling, ballast, and half-size are easy to occur, which affects the processing quality and processing cost. High, long processing cycle. Contents of the invention [0003] The invention aims to solve the problems of poor processing quality, high processing cost and long processing period in the processing process of the expansion groove of the separator of the steam turbine, and provides a processing method of the expansion groove of the separator of the steam turbine. [0004] The method for processing the expansion groove of the steam turbine diaphragm of the present invention is realized according to the following steps: [0005] ...

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 Patents(China)
IPC IPC(8): B23P15/00
CPCB23P15/00F01D25/24
Inventor 王金刚吕振佳陈正鑫魏利阳宫在龙杨飞鹏沈阳威吴海涛赵乾孙建辉
Owner HARBIN TURBINE