CN104659988B - A kind of rotor of steam turbo generator lead wire insulation manufacture method - Google Patents
A kind of rotor of steam turbo generator lead wire insulation manufacture method Download PDFInfo
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- CN104659988B CN104659988B CN201510095262.5A CN201510095262A CN104659988B CN 104659988 B CN104659988 B CN 104659988B CN 201510095262 A CN201510095262 A CN 201510095262A CN 104659988 B CN104659988 B CN 104659988B
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Abstract
The invention discloses a kind of rotor of steam turbo generator lead wire insulation manufacture method, by insulant preferably, the improvement of Wrapping technical and curing process, make lead wire insulation Quality advance, simultaneously invention provides for wrapping up the methods to set up such as tension force, solidification temperature, warming and cooling rate, temperature retention time in lead wire insulation manufacture process.The lead being manufactured using the present invention, can accomplish between various materials air-gap-free, no be layered, and lead ventilation in the hole no blocks, and ensure that lead wire insulation quality, lead wire insulation can be made to reach design service life, be that steam turbine generator safe operation provides safeguard.
Description
Technical field：
The invention belongs to turbo-generator manufacturing technology field, more particularly, to a kind of rotor of steam turbo generator lead wire insulation system
Make method.
Background technology：
Rotor of steam turbo generator lead is made up of copper conductor and insulant, and copper conductor is to be fastened by U-shaped copper groove to form, in
Empty part is the air vent of lead.Rotor leading wire is one of vitals of rotor of steam turbo generator, and the quality of lead wire insulation is determined
Determine steam turbine generator safety work.But the quality of lead wire insulation is frequently not because the performance of insulant itself is determined
Fixed, but select collocation and wrapping and curing process to determine by insulant.Lead wire insulation, insulation are manufactured using conventional method
Between material, easily there is air gap between insulant and copper conductor, easily lamination occur, and adhesive in the fabrication process
Easily along copper conductor seam flow ventilation in the hole, result in blockage, the serious quality that have impact on lead wire insulation, it is extremely difficult to lead
Insulating Design service life, and then affect the safe operation of steam turbine generator.
Content of the invention：
For the problems referred to above, it is an object of the invention to provide between a kind of insulant that can effectively eliminate lead,
Air gap between insulant and copper conductor, solves layering and air vent blockage problem, provides for steam turbine generator safe operation
The method that the rotor of steam turbo generator lead wire insulation ensureing manufactures.The technical scheme that the present invention takes is：
A. insulant selects and Wrapping technical：Wrap up 1 with the wrapping method of 1/2 overlap wrapping outside copper conductor (1)
Slice width degree 25mm, the mylar adhesive tape (2) of thickness 0.05mm, with the wrapping method of 1/2 overlap wrapping in mylar adhesive tape
(2) wrap up the ground floor glass tape (3) of 1 slice width degree 25mm, thickness 0.18mm outside, with the wrapping method of 1/2 overlap wrapping
Wrap up the silicone glass mica tape (4) of 7 slice width degree 32mm, thickness 0.14mm outside ground floor glass tape (3), with 1/2
The wrapping method of overlap wrapping wraps up 2 slice width degree 25mm, the second layer of thickness 0.25mm outside silicone glass mica tape (4)
Glass tape (5), wrap up every kind of insulant when, equipment wrapping tension force be disposed as 45N, wrapping ground floor glass tape,
When second layer glass tape and silicone glass mica tape, often in 1 layer of adhesive of its outer surface brush after 1 layer of wrapping, wrap up
While scraping off the unnecessary adhesive of insulating surface；
B. lead wire insulation heating：After the completion of the wrapping of lead wire insulation material, lead is put into what warming and cooling rate can be adjusted
Heat lead insulation in firing equipment, the programming rate of firing equipment is set to 25 DEG C/h, and holding temperature is set to 130 DEG C, protects
Warm set of time is 4h；
C. lead wire insulation cooling：After insulant reaches temperature retention time, by the cooling rate of firing equipment be set to 25 DEG C/
H, cooling stops temperature setting and is 23 DEG C, so that lead wire insulation is lowered the temperature in firing equipment, when wire temperature is reduced to 23 DEG C, fall
Temperature stops, and lead wire insulation manufacture completes.
The solution have the advantages that：
1) avoid hole plug of divulging information
Lead air vent is fastened by U-shaped copper groove and forms, and in the past when lead wire insulation is wrapped up, adhesive can be along fastening seam
Flow ventilation in the hole and lead to block air vent, the present invention use mylar adhesive tape will fasten seam and adhesive isolation, have
Effect stops in adhesive inflow vents.
2) eliminate air gap
In this method, wrapping lead wire insulation is to carry out on the equipment that wrapping tension force can be adjusted, in the work of wrapping tension force
With under, the air between insulant, between insulant and copper conductor is all discharged, makes between insulant, insulation material
The combining closely of air-gap-free between material and copper conductor, effectively raises the quality of lead wire insulation.
3) avoid dielectric layer
In lead wire insulation manufacture process, conventional method does not claim to lead warming and cooling rate, usually can be because
Lead to lead wire insulation to be layered for temperature jump, affect insulation quality.Lead is put into what warming and cooling rate can control by the present invention
Curing molding in firing equipment, this equipment have the characteristics that temperature control accurately, warming and cooling rate can adjust, in solidification process
In, ensure that the bulk temperature of lead wire insulation is always consistent, it is to avoid because non-uniform temperature or temperature change are too fast and produce
Raw lamination.
4) improve insulation thermostability
Manufactured using F level mica tape during generator amature lead, insulation during electromotor longtime running can be born in the past
Maximum temperature is 155 DEG C, and the present invention adopts H level silicone glass mica tape to manufacture lead wire insulation, so that insulation is born
Maximum temperature is promoted to 180 DEG C, effectively increases lead wire insulation thermostability, provides for the safety that electromotor runs at high temperature
Ensure.
This invention effectively solves lead wire insulation in the fabrication process it may happen that air vent blockage problem, layering are asked
Topic, and discharge between insulant, air between insulant and copper conductor, realize various material air-gap-free and contact it is ensured that drawing
Line insulation quality is so as to reach design service life.The present invention has good application prospect, is the safety fortune of steam turbine generator
Row lays the foundation.
Brief description：
Fig. 1 is lead wire insulation structural profile schematic diagram.
Specific embodiment：
As shown in figure 1, the present invention is a kind of rotor of steam turbo generator lead wire insulation manufacture method, manufacture step including following
Suddenly：
A. insulant selects and Wrapping technical：1 slice width is wrapped up outside copper conductor with the wrapping method of 1/2 overlap wrapping
Degree 25mm, the mylar adhesive tape of thickness 0.05mm, are wrapped up outside mylar adhesive tape with the wrapping method of 1/2 overlap wrapping
1 slice width degree 25mm, the glass tape of thickness 0.18mm, wrap up 7 layers with the wrapping method of 1/2 overlap wrapping outside glass tape
Width 32mm, the silicone glass mica tape of thickness 0.14mm, with the wrapping method of 1/2 overlap wrapping in silicone glass Muscovitum
With the glass tape of outside wrapping 2 slice width degree 25mm, thickness 0.25mm, when wrapping up every kind of insulant, equipment wrapping tension force is equal
It is set to 45N, when wrapping up glass tape and silicone glass mica tape, often gluing on 1 layer of its outer surface brush after 1 layer of wrapping
Agent, wraps up and scrapes off the unnecessary adhesive of insulating surface；
B. lead wire insulation heating：After the completion of the wrapping of lead wire insulation material, lead is put into what warming and cooling rate can be adjusted
Heat lead insulation in firing equipment, the programming rate of firing equipment is set to 25 DEG C/h, and holding temperature is set to 130 DEG C, protects
Warm set of time is 4h；
C. lead wire insulation cooling：After insulant reaches temperature retention time, by the cooling rate of firing equipment be set to 25 DEG C/
H, cooling stops temperature setting and is 23 DEG C, so that lead wire insulation is lowered the temperature in firing equipment, when wire temperature is reduced to 23 DEG C, fall
Temperature stops, and lead wire insulation manufacture completes.
Claims (1)
1. a kind of rotor of steam turbo generator lead wire insulation manufacture method, is characterized in that：Comprise the steps：
A. insulant selects and Wrapping technical：1 slice width is wrapped up outside copper conductor (1) with the wrapping method of 1/2 overlap wrapping
Degree 25mm, the mylar adhesive tape (2) of thickness 0.05mm, with the wrapping method of 1/2 overlap wrapping in mylar adhesive tape (2) outward
Bread pricks 1 slice width degree 25mm, the ground floor glass tape (3) of thickness 0.18mm, with the wrapping method of 1/2 overlap wrapping first
Wrap up the silicone glass mica tape (4) of 7 slice width degree 32mm, thickness 0.14mm outside layer glass tape (3), twined with 1/2 overlap
Around wrapping method wrap up the second layer glass fiber of 2 slice width degree 25mm, thickness 0.25mm outside silicone glass mica tape (4)
Band (5), when wrapping up every kind of insulant, equipment wrapping tension force is disposed as 45N, in wrapping ground floor glass tape, the second layer
When glass tape and silicone glass mica tape, often in 1 layer of adhesive of its outer surface brush after 1 layer of wrapping, wrap up and scrape
Remove the adhesive that insulating surface is unnecessary；
B. lead wire insulation heating：After the completion of the wrapping of lead wire insulation material, lead is put into the heating that warming and cooling rate can be adjusted
Heat lead insulation in equipment, the programming rate of firing equipment is set to 25 DEG C/h, and holding temperature is set to 130 DEG C, during insulation
Between be set to 4h；
C. lead wire insulation cooling：After insulant reaches temperature retention time, the cooling rate of firing equipment is set to 25 DEG C/h, fall
Temperature stops temperature setting and is 23 DEG C, so that lead wire insulation is lowered the temperature in firing equipment, when wire temperature is reduced to 23 DEG C, cooling stops
Only, lead wire insulation manufacture completes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510095262.5A CN104659988B (en) | 2015-03-04 | 2015-03-04 | A kind of rotor of steam turbo generator lead wire insulation manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510095262.5A CN104659988B (en) | 2015-03-04 | 2015-03-04 | A kind of rotor of steam turbo generator lead wire insulation manufacture method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104659988A CN104659988A (en) | 2015-05-27 |
| CN104659988B true CN104659988B (en) | 2017-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510095262.5A Active CN104659988B (en) | 2015-03-04 | 2015-03-04 | A kind of rotor of steam turbo generator lead wire insulation manufacture method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104967266B (en) * | 2015-07-06 | 2017-07-21 | 大唐桂冠合山发电有限公司 | A kind of insulating method for being directed to the transition lead wire of stator winding in steam turbine generator |
| CN108512378A (en) * | 2018-03-23 | 2018-09-07 | 哈尔滨电机厂有限责任公司 | A kind of Hydrogen-cooling stator of steam turbine generator parallel ring lead wire insulation manufacturing method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0910627D0 (en) * | 2009-06-19 | 2009-08-05 | Muirhead Aerospace Ltd | Electrical insulation |
| CN102185407A (en) * | 2011-05-13 | 2011-09-14 | 东方电气（乐山）新能源设备有限公司 | Insulating structure for 2MW wind driven generator |
| CN102158022B (en) * | 2011-05-18 | 2012-12-05 | 江苏冰城电材股份有限公司 | Method for manufacturing insulating structure of 3-5MW wind power generator stator coil |
| CN102158023B (en) * | 2011-05-18 | 2013-02-13 | 江苏冰城电材股份有限公司 | Method for manufacturing insulation structure of rotor coil of wind driven generator |
| CN102255448B (en) * | 2011-07-19 | 2013-08-07 | 柳州市明阳机电制造有限责任公司 | Insulation manufacturing method for wind driven generator |
| US20130069474A1 (en) * | 2011-09-16 | 2013-03-21 | Remy Technologies, L.L.C. | Composite conductor insulation |
| JP2014154511A (en) * | 2013-02-13 | 2014-08-25 | Hitachi Metals Ltd | Insulated wire and method of manufacturing the same |
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