CN103546000B - A kind of generator end insulation booth glue-pouring method - Google Patents
A kind of generator end insulation booth glue-pouring method Download PDFInfo
- Publication number
- CN103546000B CN103546000B CN201310525251.7A CN201310525251A CN103546000B CN 103546000 B CN103546000 B CN 103546000B CN 201310525251 A CN201310525251 A CN 201310525251A CN 103546000 B CN103546000 B CN 103546000B
- Authority
- CN
- China
- Prior art keywords
- insulation box
- mica insulation
- glue
- mica
- potting compound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention provides a kind of Generator Stator Winding Ends insulation booth glue-pouring method, use mica insulation box and frock by tab closure, and with epoxy putty, mica insulation box and frock seam crossing are sealed, mica insulation box opens hole for injecting glue in advance, use potting compound equipment, epoxy potting compound is injected hole for injecting glue, and epoxy potting compound is at room temperature solidified, after removing frock, mica insulation box and epoxy potting compound form entirety.Method provided by the invention overcomes the deficiencies in the prior art, and dependable performance, structure simply, and can enhance productivity, reduce labour intensity, ensure that insulation effect.
Description
Technical field
The present invention relates to a kind of generator end insulation booth glue-pouring method, can be used for the closed insulation of Generator Stator Winding Ends globe joint copper bar connecting portion, belong to generator unit stator mounting technology field.
Background technology
At present, large turbo-type generator stator winding generally adopts basket winding or lap winding, for ease of processing and insulation, each coil is made up of two line rods, be placed on the upper and lower in different slots respectively, the straight line portion of levels coil is embedded in groove, after end goes out groove by and the form such as headgear or welding connected by joint at generator end, to internal water cooling coil, joint location also will bear water route connection function, be in operation, for ensureing that adjacent joint has enough insulating capacities, joint outward can wrapped certain insulating material simultaneously.
Traditional stator winding end joint insulation adopts mica tape to hold the mode of baked and cured usually, along with the mode that Generator Stator Winding Ends adopts globe joint to be connected with busbar, the shape matching of syndeton is complicated, if still adopt the insulation mode that mica tape holds, not only need to hold the more mica tape number of plies, shape matching in addition due to end line rod syndeton is complicated, wrap up more difficult, operator's labour intensity is high, and hold of poor quality, not only production efficiency is low, and integral insulation poor effect.The limitation of tradition Wrapping technical, many-side affects the manufacturing of turbo generator.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of dependable performance, structure is simple, and the Generator Stator Winding Ends insulation booth glue-pouring method of labour intensity of can enhancing productivity, reduce.
In order to solve above-mentioned first technical problem, technical scheme of the present invention is to provide a kind of Generator Stator Winding Ends insulation booth glue-pouring method, it is characterized in that: the method is made up of following 4 steps:
Step 1: at coil jointing surrounding prepackage mica insulation box, and join out hole for injecting glue, front side baffle plate and rear side baffle is equipped with respectively before and after mica insulation box, adjustment mica insulation box and play movement, fixing mica insulation box, and with epoxy putty, mica insulation box and front side baffle plate, rear side baffle seam crossing are sealed;
Step 2: arrange adhesive injection device plastic emitting ratio, regulates epoxy potting compound two kinds of component proportionings, makes epoxy potting compound can proportional, plastic emitting equably;
Step 3: inject epoxy potting compound from a hole for injecting glue of mica insulation box, fill completely to mica insulation box; In other mica insulation box processes of perfusion, benefit glue is carried out to the mica insulation box poured into, ensure that epoxy potting compound flushes with mica insulation box;
Step 4: after perfusion terminates, cold curing, epoxy potting compound solidifies rear dismounting front side baffle plate and rear side baffle completely, checks perfusion situation, ensures that mica insulation box is connected tight gapless with epoxy potting compound.
Preferably, described mica insulation box be adopt multilayer mica paper and glass cloth hot-forming in a mold after gluing holds, and machinedly to form, and coarsen treatment carried out to mica insulation box inner surface.
Preferably, described epoxy potting compound is double-component cold curing epoxy potting resin, containing silica filler, pigment, and amine curing agent.
Preferably, in described step 2, control plastic emitting flow velocity by the controlled valve of the Filling gun regulating adhesive injection device.
Preferably, in described step 3, each mica insulation box infusion time is 5min.
Preferably, in described step 4, the cold curing time is 18h.
Generator Stator Winding Ends insulation booth glue-pouring method provided by the invention adopts insulation booth potting structure, and efficiently solve the problem that Conventional insulation binding structure for binding production efficiency is low, labour intensity is large, insulation effect is good, insulation good stability.
Method provided by the invention overcomes the deficiencies in the prior art, and dependable performance, structure simply, and can enhance productivity, reduce labour intensity, ensure that insulation effect.
Accompanying drawing explanation
Fig. 1 is Generator Stator Winding Ends insulation booth glue-pouring method process chart provided by the invention;
Fig. 2 is that generator end connects partial front elevation view;
Fig. 3 is that generator end connects partial side view;
Fig. 4 is generator end dress insulation booth, encapsulating figure;
Fig. 5 is rear side baffle structure chart;
Fig. 6 is front side baffle arrangement figure.
Embodiment
For making the present invention become apparent, hereby with a preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
Fig. 1 is Generator Stator Winding Ends insulation booth glue-pouring method process chart provided by the invention, Generator Stator Winding Ends insulation booth glue-pouring method provided by the invention uses mica insulation box and frock by tab closure, and with a kind of epoxy putty, mica insulation box and frock seam crossing are sealed, mica insulation box opens hole for injecting glue in advance, use potting compound equipment, epoxy potting compound is injected hole for injecting glue, and epoxy potting compound is at room temperature solidified, after removing frock, mica insulation box should form entirety with epoxy potting compound.
Mica insulation box be adopt multilayer mica paper and glass cloth through gluing, hold after hot-forming in a mold, machinedly to form.The features such as mica insulation box tool mechanical strength is high, excellent electrical properties, Heat stability is good, thermal endurance class is F level.For make mica insulation box better and epoxy potting compound bond, grinding process need be carried out to mica insulation box inner surface.
Epoxy potting compound is full-bodied double-component cold curing epoxy potting resin, mainly containing silica filler, pigment, and the curing agent composition of liquid amine formula.Its main feature be its when at room temperature solidifying exothermal reaction process slow and gentle, final cure shrinkage is very little, after avoiding the solidification of epoxy potting compound and mica insulation box lamination.
Composition graphs 2 ~ Fig. 4, after prepackage mica insulation box 1, the difference of generator locus is positioned at by it, mark hole for injecting glue, the joint 2 of this generator is positioned at the axial centre position of mica insulation box 1, defines the space that two need encapsulating in mica insulation box 1, therefore need mark 4 fill orifice positions in front and back, mica insulation box 1 surface or upper and lower peak, and the φ 16mm that holes, clean out.The rear side baffle 4 shown in Fig. 5 is filled before and after stator coil jointing 2, and it is temporary fixed with adhesive tape, rear side baffle 4 is carried out repair with the indentation, there of stator coil jointing 2 and is used epoxy putty shutoff, mica insulation box 1 is seated, on rear side of it should with rear side baffle 4 close contact, fixed by mica insulation box 1 with wedge between mica insulation box 1 and joint, mica insulation box 1 and rear side baffle 4 surrounding faying face epoxy putty carry out shutoff.Generator installing insulating aqueduct is gone forward side by side, and promoting the circulation of qi is close, the hydraulic test.Composition graphs 6, baffle plate 5 on front side of dress mica insulation box, and with baffle plate on front side of epoxy putty shutoff 5 and mica insulation box 1 gap.
According to the weight ratio 100:35 of epoxy potting compound 3 liang of components, setting glue pouring machine plastic emitting scale parameter.Epoxy potting compound 3 is stirred in respective material cylinder, and carries out vacuumizing de-bubble process.Before perfusion, from the sample tap of glue pouring machine, gather separately A, B one-component, calculate, verify plastic emitting weight ratio.Open the plastic emitting valve of glue pouring machine, from mica insulation box 1 hole for injecting glue position perfusion epoxy potting compound 3.Carry out pouring into until each fill orifice all has resin to flow out from different hole for injecting glue respectively, and carry out benefit glue after certain interval of time, ensure that epoxy potting compound 3 flushes with mica insulation box 1.Each mica insulation box 1 infusion time is about 5min.After perfusion terminates rear cold curing 18h, perfusion potting compound 3 solidifies completely, removes front side baffle plate 5, rear side baffle 4, checks perfusion situation, ensures that mica insulation box 1 is connected tight gapless with perfusion potting compound 3.Cleaning perfusion equipment.
Claims (5)
1. a Generator Stator Winding Ends insulation booth glue-pouring method, is characterized in that: the method is made up of following 4 steps:
Step 1: in coil jointing (2) surrounding prepackage mica insulation box (1), and join out hole for injecting glue, front side baffle plate (5) and rear side baffle (4) is equipped with respectively before and after mica insulation box (1), adjustment mica insulation box (1) and joint (2) gap, fixing mica insulation box (1), and with epoxy putty, mica insulation box (1) and front side baffle plate (5), rear side baffle (4) seam crossing are sealed;
Step 2: arrange adhesive injection device plastic emitting ratio, regulates epoxy potting compound (3) two kinds of component proportionings, makes epoxy potting compound (3) can proportional, plastic emitting equably;
Step 3: inject epoxy potting compound from a hole for injecting glue of mica insulation box (1), fill completely to mica insulation box (1); In other mica insulation box processes of perfusion, benefit glue is carried out to the mica insulation box poured into, ensure that epoxy potting compound flushes with mica insulation box;
Step 4: after perfusion terminates, cold curing, epoxy potting compound solidifies rear dismounting front side baffle plate (5) and rear side baffle (4) completely, checks perfusion situation, ensures that mica insulation box is connected tight gapless with epoxy potting compound.
2. a kind of Generator Stator Winding Ends insulation booth glue-pouring method as claimed in claim 1, it is characterized in that: described mica insulation box (1) is that employing multilayer mica paper and glass cloth are hot-forming in a mold after gluing holds, and carries out coarsen treatment to mica insulation box (1) inner surface.
3. a kind of Generator Stator Winding Ends insulation booth glue-pouring method as claimed in claim 1, is characterized in that: in described step 2, controls plastic emitting flow velocity by the controlled valve of the Filling gun regulating adhesive injection device.
4. a kind of Generator Stator Winding Ends insulation booth glue-pouring method as claimed in claim 1, is characterized in that: in described step 3, and each mica insulation box (1) infusion time is 5min.
5. a kind of Generator Stator Winding Ends insulation booth glue-pouring method as claimed in claim 1, it is characterized in that: in described step 4, the cold curing time is 18h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310525251.7A CN103546000B (en) | 2013-10-29 | 2013-10-29 | A kind of generator end insulation booth glue-pouring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310525251.7A CN103546000B (en) | 2013-10-29 | 2013-10-29 | A kind of generator end insulation booth glue-pouring method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103546000A CN103546000A (en) | 2014-01-29 |
| CN103546000B true CN103546000B (en) | 2015-08-26 |
Family
ID=49969160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310525251.7A Active CN103546000B (en) | 2013-10-29 | 2013-10-29 | A kind of generator end insulation booth glue-pouring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103546000B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124842A (en) * | 2014-06-18 | 2014-10-29 | 中信重工机械股份有限公司 | Turn-to-turn insulation manufacturing method for rotor of inner air-cooled steam-turbine generator |
| CN106685121B (en) * | 2017-01-16 | 2023-12-05 | 浙江博菲电气股份有限公司 | Flexible plugging sleeve for vertical hydraulic generator stator bar lead insulation box and assembly method thereof |
| CN106787526B (en) * | 2017-03-30 | 2019-03-29 | 上海电气集团上海电机厂有限公司 | A kind of manufacture craft of brushless low speed synchromotor insulation booth infusion epoxy resin glue |
| CN107276342B (en) * | 2017-07-17 | 2020-03-20 | 浙江西子富沃德电机有限公司 | Epoxy resin pouring process for motor stator winding |
| CN108520818B (en) * | 2018-03-19 | 2020-09-01 | 佛山市亨得利电子电器有限公司 | Coil encapsulation process |
| CN108418365B (en) * | 2018-03-19 | 2020-06-16 | 佛山市亨得利电子电器有限公司 | Coil encapsulation process |
| CN110511571B (en) * | 2019-07-30 | 2021-07-30 | 浙江荣泰科技企业有限公司 | Stator winding end insulation structure of generator and processing method |
| CN116760249B (en) * | 2023-08-16 | 2023-11-10 | 哈尔滨电机厂有限责任公司 | Generator on-site glue pouring process method of end glue pouring structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280975B (en) * | 2010-06-08 | 2015-06-24 | 天津市松正电动汽车技术股份有限公司 | Filling and sealing process of motor stator core |
| CN101882844B (en) * | 2010-06-30 | 2012-01-25 | 上海电气电站设备有限公司 | Stator coil end encapsulating and fixing method |
| EP2451052A3 (en) * | 2010-11-09 | 2014-02-26 | Alstom Technology Ltd | Electric machine, insulating cap and method for realising an insulating cap |
-
2013
- 2013-10-29 CN CN201310525251.7A patent/CN103546000B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103546000A (en) | 2014-01-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103546000B (en) | A kind of generator end insulation booth glue-pouring method | |
| CN102280975B (en) | Filling and sealing process of motor stator core | |
| CN103692590B (en) | A kind of transformer shell glue-pouring device and use the method for this device encapsulating | |
| CN107979201A (en) | Electric motor winding end embedding structure, method and the motor made by this method | |
| JP2007515746A (en) | Composite hollow insulator and manufacturing method thereof | |
| CN111384792B (en) | Axial motor stator and production process thereof | |
| CN102825352B (en) | The manufacture method of water knockout drum and manufacture the semi-finished product of this water knockout drum | |
| CN206124047U (en) | A casting die utensil for square rock core epoxy | |
| CN102360687A (en) | Electromagnetic coil for air conditioning four-way valve and manufacturing method for electromagnetic coil | |
| CN206412863U (en) | Flexible block sets for vertical hydrogenerator stator bar lead wire insulation box | |
| CN103827717B (en) | The manufacture method of optical module | |
| CN106298217B (en) | A kind of rotary transformer encapsulating device, method and its application | |
| CN104241555A (en) | Lithium battery encapsulating method | |
| CN209545291U (en) | A kind of stator core insulation structure | |
| CN107317444A (en) | The stator and rotor epoxy sealing technique of disc type magnetic generator | |
| CN103594240B (en) | Low-noise dry-type iron core reactor assembling process | |
| CN208497567U (en) | The encapsulated injection mould structure of water heater housing seam crossing | |
| CN207630419U (en) | A kind of air plug encapsulating device | |
| CN205763671U (en) | Core solidification equipment | |
| CN207304248U (en) | Flange-cooled shield electric machine stator | |
| CN205863885U (en) | A kind of plugging device of oil-filled cable transition joint permeability point | |
| CN104966610B (en) | Transformer coil outlet end welder and method | |
| CN105799095B (en) | A kind of blade mold and preparation method thereof | |
| CN205629352U (en) | Electromagnetic induction heating device of package in middle of brazing filler metal casting | |
| CN209555051U (en) | A kind of quartz crucible mold |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |