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

Method for simply demounting copper tile from cylinder body of hydropower unit

A technology for hydroelectric units and cylinders, applied in hand-held tools, manufacturing tools, etc., can solve the problems of not being able to meet the actual needs of repairs, difficulty in reassembling new copper tiles, and easy damage to the cylinder body, so as to ensure quality and Appearance, easy promotion, low cost effect

Inactive Publication Date: 2018-09-07
HARBIN ELECTRIC MASCH CO LTD
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, as the repair business of hydropower units continues to increase, in the past, manufacturers of cylinder block repairs used equipment to remove copper tiles, which was costly and long-term, and could no longer meet the actual needs of repairs.
Trying other methods such as on-site mechanical demolition, gas cutting and disassembly, etc., can easily damage the cylinder body, which has a high risk, and it is difficult to reinstall the new copper tile

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
  • Method for simply demounting copper tile from cylinder body of hydropower unit

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment

[0030] Taking the repair work of a cylinder block of a large hydropower unit as an example to illustrate the process of removing copper tiles by applying the present invention: the weight of the cylinder body is 25t, the height is about 832mm, the maximum outer diameter is Ф1275mm, the maximum outer diameter of copper tiles is Ф375, and the copper tiles Height 120mm. Adopt the present invention to remove, and process is as follows:

[0031] 1) Place the cylinder body 1 on the ground, with the flange end of the copper tile 2 facing down, and weld the container tube 3 with a height of 150mm under the cylinder body 1;

[0032] 2) Pour 700ml of liquid nitrogen from the upper opening of the cylinder into the space formed by the cylinder 1, the copper tile 2 and the container cylinder 3;

[0033] 3) Put the pressure bearing plate 6 on the upper end of the copper tile 2;

[0034] 4) Put the jack 5 on the upper part of the pressure plate 6, adjust the height of the jack 5, put the p...

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
heightaaaaaaaaaa
heightaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for simply demounting a copper tile from a cylinder body of a hydropower unit. Through the difference of thermal expansion coefficients of different materials, the friction force of the copper tile and the cylinder body is reduced through liquid nitrogen; and through the structure of a container barrel, a pressure bearing plate, a jack and a pressure bearing frame,force is applied to stably press the copper tile out of the cylinder body, and the technical effect that the cylinder body and the copper tile do not suffer from any damage is achieved. According tothe method, the method for simply demounting the copper tile from the cylinder body of the hydropower unit is enriched, and the temporary repair significance on the construction site is great. The method has the beneficial effects of being easy to popularize, low in cost and obvious in effect.

Description

Technical field: [0001] The invention relates to a removal method in the field of mechanical manufacturing, in particular to a method for simply removing copper tiles from a cylinder body of a hydroelectric unit. Background technique: [0002] The cylinder block of the hydroelectric unit is one of the core components of the unit, and it is also one of the common reworked workpieces in the rework of the hydroelectric unit. [0003] At present, as the repair business of hydropower units continues to increase, in the past, manufacturers of cylinder block repairs have used equipment to remove copper tiles, which is costly and takes a long time, which can no longer meet the actual needs of repairs. Trying other methods such as on-site mechanical dismantling, gas cutting and disassembly, etc., can easily damage the cylinder body, which has a high risk, and it is difficult to reinstall the new copper tiles. [0004] Therefore, in order to overcome the above-mentioned situation, it...

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): B25B27/02
Inventor 刘向海张向阳詹飞飞黄海玉姜国华
Owner HARBIN ELECTRIC MASCH CO LTD
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