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Process for bonding y-type sealing strips on enclosure of electric generator stator

A generator stator and sealing strip technology, applied in the manufacture of motor generators, electrical components, electromechanical devices, etc., can solve the problems of reducing the cooling effect of the unit, poor mechanical strength, and sealing strips falling off, and achieve good promotion and application value, guarantee Assembly quality requirements, good use effect

Active Publication Date: 2012-03-14
SHANDONG QILU ELECTRIC MOTOR MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the operation of the generator, the problems of sealing strip falling off, thermal deformation, and poor mechanical strength occurred many times.
The deformation and falling off of the sealing strip will make the relatively independent cold and hot compartment air chambers of the stator unit penetrate, reduce the cooling effect of the unit, and seriously affect the normal operation of the motor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] 1. Bond the sealing strip to the upper part of the casing

[0022] 1.1. Cut the rubber sealing strip to the size required by the drawing;

[0023] 1.2. On the adhesive surface of the upper part of the casing, apply EP135 adhesive with a thickness of 2 to 3mm with a spatula, and use aluminum tape to bond and fix the sealing strip on the radial wall of the casing at even intervals to ensure good sealing. Bonding, special attention should be paid to the corners of the radial walls;

[0024] 1.3. After applying the adhesive, remove the aluminum tape, and carefully check that the sealing strip is glued to both sides of the radial wall of the casing throughout the entire length; When applying the adhesive, the sealing strip is partially clamped on the radial wall of the casing for trimming;

[0025] 2. The sealing strip is glued and fixed on the lower part of the casing

[0026] 2.1. The sealing strip is 100-120mm higher than the joint surface of the lower part of the casi...

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PUM

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Abstract

The invention relates to a process for bonding y-type sealing strips on an enclosure of an electric generator stator, which comprises the steps of bonding sealing strips on the upper part and the lower part of the enclosure and installing the stator into the enclosure. After a series of process tests, sealing strips for a single electric generatorWX18Z-05460MW are produced and tested for use, anda comprehensive quality control is carried out on the production site for bonding the sealing strips and installing the stator into the enclosure. Special observation is given to compression distortion and shedding of the sealing strips in the enclosure after the sealing strips are bonded and assembled, and to the feedback of electric generator users. Whether the sealing strips are aged, distorted and the like under heat is observed in combination with the environmental condition of temperature rise of unit operation. After integrating various ways of information and adopting the process, theethylene propylene diene rubber sealing strips completely meet the requirements for stator assembly. The invention has simple operation of process procedures, favorable use effect and excellent popularization and application value.

Description

technical field [0001] The invention relates to a bonding process, in particular to a bonding process for a Y-shaped sealing strip of a generator stator casing. Background technique [0002] WX series air-cooled generator stator core is radially ventilated and axially segmented for cooling. The radial wall of the stator casing and the segmented iron core form a radial air path with a cold and hot interval. By using the bonded "y" type rubber sealing strip, Separate the air inlet and outlet from each other to form separate cold and hot air chambers. Therefore, for the cooling effect of the stator and the core, the material properties and bonding technology of the rubber sealing strip are particularly important. For the rubber sealing strip of the stator casing, we have been using the fluororubber sealing strip bonding process in the past. However, during the operation of the generator, problems such as the sealing strip falling off, thermal deformation, and poor mechanical ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K15/00H02K15/14
Inventor 魏景生卢启杰栾业敏王帅甘帅
Owner SHANDONG QILU ELECTRIC MOTOR MFG