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

AP1000 steam generator tube plate group hole high-efficiency machining technology and method

A steam generator and processing technology technology, applied in metal processing equipment, metal processing mechanical parts, manufacturing tools, etc., can solve the problems of excessive hole position, unreasonable influence control, chipping tool life, etc., and achieve cumulative error. The effect of reducing, saving working time and increasing service life

Active Publication Date: 2013-09-11
HARBIN ELECTRIC CORP QINHUANGDAO HEAVY EQUIP
View PDF6 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Deep hole processing of evaporator tube sheets has always been a difficult problem for nuclear power equipment manufacturers. The deep hole processing of evaporator tube sheets is different from single hole or a small number of tube hole deep hole processing. This type of tube sheet hole processing needs to ensure that equipment, tools The stability of the entire deep hole processing system, technology, etc. In the past, during the deep hole processing of nuclear power tube sheets, poor design of supporting key tooling (guide sleeves, spacing blocks), lack of BTA drill selection and use experience caused tool chipping and tool breakage. Unreasonable life impact control, insufficient grasp of the cutting performance of the tube sheet material, or unreasonable selection of processing technology parameters will affect the accuracy, straightness and smoothness of the tube hole, and the cumulative error caused by multiple positioning and repeated positioning of the machine tool often results in hole position accuracy. out of control

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
  • AP1000 steam generator tube plate group hole high-efficiency machining technology and method
  • AP1000 steam generator tube plate group hole high-efficiency machining technology and method
  • AP1000 steam generator tube plate group hole high-efficiency machining technology and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0056] The following describes the present invention in detail, and the features and advantages of the present invention will become more clear and definite along with these descriptions.

[0057] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0058]In a preferred embodiment of the present invention, such as Figure 1-4 As shown in , a method for efficiently processing steam generator tube plate group holes is provided. The method is carried out by an improved CNC three-axis deep hole drilling machine, and the improved CNC three-axis deep hole drilling machine is included in the CNC three-axis deep hole drilling machine. The installed tube plate...

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

The invention discloses an AP1000 steam generator tube plate group hole high-efficiency machining technology and method. The method is conducted through an improved numerical control three-shaft gun drilling machine. The improved numerical control three-shaft gun drilling machine comprises a tube plate clamping tool, a tube plate displacement monitoring system installed on a tube plate to be machined, a tool installed on the numerical control three-shaft gun drilling machine, and an ancillary tool installed on the numerical control three-shaft gun drilling machine. The machining method comprises the following steps of (1) conducting annealing heat treatment on the tube plate to be machined so as to improve the cutting effect of the numerical control gun drilling machine; (2) fixing the tube plate to be machined onto a working platform by the adoption of a binding fixing method so that the tube plate to be machined cannot move during long-period punching, and installing the tube plate displacement monitoring system on the tube plate to be machined; (3) conducing drilling on the tube plate to be machined.

Description

technical field [0001] The invention relates to a processing method for group holes of a tube sheet, in particular to a high-efficiency processing method for group holes of a steam generator tube sheet applied to the tube sheet of an AP1000 steam generator. Background technique [0002] A steam generator refers to a mechanical device that uses heat energy (such as electric energy) from fuel or other energy sources to heat water into steam. [0003] The tube plate is a kind of accessory that drills a hole slightly larger than the outer diameter of the pipe on the steel plate, and penetrates the pipe into it and welds it to fix it. [0004] Deep hole processing of evaporator tube sheets has always been a difficult problem for nuclear power equipment manufacturers. The deep hole processing of evaporator tube sheets is different from single hole or a small number of tube hole deep hole processing. This type of tube sheet hole processing needs to ensure that equipment, tools The...

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): B23B35/00B23B41/02B23Q3/06
Inventor 韩君杨松马东华于均刚杨圆明和广庆张楠琦
Owner HARBIN ELECTRIC CORP QINHUANGDAO HEAVY EQUIP
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