CN102179341A - Vacuum pressure paint dipping device - Google Patents
Vacuum pressure paint dipping device Download PDFInfo
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- CN102179341A CN102179341A CN2011101033155A CN201110103315A CN102179341A CN 102179341 A CN102179341 A CN 102179341A CN 2011101033155 A CN2011101033155 A CN 2011101033155A CN 201110103315 A CN201110103315 A CN 201110103315A CN 102179341 A CN102179341 A CN 102179341A
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- paint
- impregnating vessel
- vacuum pressure
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Abstract
The invention provides a vacuum pressure paint dipping device, which comprises a paint dipping tank and a paint storing tank connected with the pain dipping tank, wherein the bottom of the paint dipping tank is communicated with the bottom of the pain storing tank through a paint delivery pipe which is provided with a paint delivery valve. The vacuum pressure paint dipping device is characterized in that: the paint dipping tank is respectively communicated with a vacuum machine set, an air compressor and a gas tank device storing carbon dioxide gas through a communicating valve; and an infrared low-temperature heating device is arranged in the paint dipping tank. By the device, carbon dioxide is directly input into the paint dipping tank and is properly pressurized and preheated to fill all microgaps the carbon dioxide can enter so as to realize good dehumidification function and greatly shorten time for preheating and dehumidifying workpieces.
Description
Technical field
The present invention relates to a kind of vacuum pressure impregnation device, specifically, the present invention relates to a kind of vacuum pressure impregnation device that improves the impregnating vessel structure.
Background technology
The extreme high voltage technology also becomes the emphasis that the electrical equipment and electrical industry is studied simultaneously along with the development of electrical industry is not only paid close attention to by power industry.Extra-high-speed force feed electricity, high pressure electricity consumption will effectively reduce cost of transportation, the energy-saving and emission-reduction of electric coal, will bring huge social benefit and economic interests for economic construction and industrial expansion.High-voltage motor will replace the main flow that low voltage motor becomes the 100KW-1000KW capacity.But the manufacturing technology of high-voltage motor winding insulation remains at present and hinders the important step that motor increases capacity, reduces volume, raises the efficiency.High-voltage motor technological progress important behaviour point is to reduce the thickness of winding insulation layer.And the present technological ability of domestic big electromechanics trade also can't adapt to the mica material of high osmosis, low gel content.The feature that current domestic production is used for the mica tape of VPI technology is to satisfy the manufacturability that falls behind wrapped equipment to sacrifice permeability.Mainly show and improve gel content, improve pulling force and toughness simultaneously to increase pliability.Also require to have changed glue spreading method even gel content is lower than 10% mica tape, destroyed permeability greatly in order to cater to flexibility.The permeability ability of domestic low resin mica tape generally is the 1/15-1/20 of external like product.The shaped article that can reach below 1/10 is actually rare.This shows how effectively the limited mica permeability of protection is to improve the main difficult problem of winding dipping lacquer saturation degree in the VPI technical process.
The present preliminary drying method that extensively adopts of industry is that the winding iron core of preparing to carry out the VPI dipping baking oven of in advance packing into was cured 3-5 hour in 90-95 ℃ of temperature.Purpose is the inner remaining moisture of evaporation workpiece and strengthens the immersion resin flow, but this method is not complementary with the home made materials that uses at present.The first, gel content and the glue that is used for the mica material uncured of VPI technology should not cure in high temperature in the homogenising that mica distributes, and only does like this and can make the mica hardening, makes the very poor more difficult infiltration of mica of permeability originally; The second, the domestic VPI impregnating resin that carries out is applicable to that normal temperature uses, and viscosity can reach 18-30 second under the normal temperature, as long as workpiece also is in 20-40 ℃ of normal temperature.Therefore, how more effective removal moisture is the pretreated core of workpiece.Baking process has not only destroyed the penetrating power of mica, and the low-temperature heat in the short time can only make the water evaporates of surface of the work, in the embedded groove hydrone of very dark insulation system inside from low temperature to high temperature displacement then need a very long process (needing 3-7 days time) such as curing of timber, have only above 120 ℃, make moisture vaporization produce pressure and discharge rapidly, more can quicken mica and be tending towards quantitative curing and do like this.
Summary of the invention
For this reason, the purpose of this invention is to provide a kind of vacuum pressure impregnation device.The technology used in the present invention means are before vacuum pressure impregnation technology begins, and earlier with equipment, for example under the atmosphere of winding carbon dioxide now unshakable in one's determination, preheat 1-2 hour under 60-85 ℃ temperature, so that the moisture in the removal equipment.
In order to realize above-mentioned means, the present invention is achieved through the following technical solutions: a kind of vacuum pressure impregnation device comprises: impregnating vessel; With the tank connected storage paint can of dipping lacquer, the bottom of described impregnating vessel is communicated with by the transmission pipe road with the bottom of storage paint can, and defeated lacquer valve is set on the transmission pipe; It is characterized in that: impregnating vessel is communicated with by communicating valve and vacuum unit, air compressor and the gas tank device that stores carbon dioxide respectively, and described impregnating vessel inside also is equipped with infrared low-temperature heating device.
Preferably, described infrared low-temperature heating device also is equipped with temperature sensor and temperature control unit, and when the real time temperature of temperature sensor measurement was lower than 60 ℃, infrared heating element worked on; When temperature reached 85 ℃, infrared heating element quit work.
The operation principle of vacuum pressure impregnation device of the present invention can be described by following steps:
1. the impregnating vessel of workpiece being packed into is sealing also;
2. open the vacuum unit, vacuumize impregnating vessel pressure is reached below the 30Pa;
3. open communicating valve, the input carbon dioxide makes impregnating vessel pressure reach 0.10-0.25MPa, opens infrared low-temperature heating device simultaneously, the temperature that keeps impregnating vessel between the 60-85 degree, duration 1-2 hour;
4. open the vacuum unit, be evacuated to below the 30Pa, pressurize 0.5-1 hour, make work-piece cools, then the isolated input lacquer;
5. after insulated paint fully soaks into workpiece, the unlatching air compressor will store up paint can and be pressurized to 0.5-0.8MPa, make insulated paint fully soak into workpiece, pressurize 0.5-1 hour;
6. open the vacuum unit, pressure release pushes back the storage paint can to 0.3-0.4MPa with the insulated paint in the impregnating vessel, finishes paint-dipping process.
Technical scheme of the present invention compared with prior art, its superiority is:
1. utilize the characteristics of the airtight pump pressure of VPI equipment, winding iron core is directly packed into carry out the preheating dehumidification treatments in the impregnating vessel.Input carbon dioxide and suitably pressurization and preheating in jar, carbon dioxide is brought into play its good exsiccation with all microgaps that can enter of filling, has shortened the time of workpiece preheating dehumidifying greatly.
2. another advantage of carbon dioxide treatment is to utilize pressure that insulation is organized in the part extruding that is subjected in the rule process to repair, and makes insulation tissue density more even.
3. adopting the winding insulation layer of VPI technology is the openpore state when rule, be similar to soft tissue, need mechanical compression before the rule, rely on soft tissue nature diastole resilience to fill up in the embedded groove, in addition, embed in addition slot wedge and minority winding fall the time degree of difficulty increase, individual trough-shaped is irregular, part extruding all can formation insulation tissue odds that causes is even, the irrational extruding of great majority operation relies on the diastole resilience of tissue tension force own to recover, and indivedual local extruding can cause plastic deformation, will increase the weight of density unevenness behind the dipping lacquer.
4. about thermal process that the present invention taked also is to utilize carbon dioxide gas pressure the insulation tissue to be repeated repeatedly to carry out the process of combing.The strength that produces is can set upright the machine direction of mica and supporting material, eliminate plastic deformation, dredge the lacquer road, makes the dipping saturation degree higher, and insulation compactness increases.
Description of drawings
Fig. 1 is the structural representation of high pressure vacuum pressure impregnation device.
Wherein, 1-impregnating vessel; 2-stores up paint can; 3-vacuum unit; The 4-air compressor unit; The 5-transmission pipe; The 6-carbon dioxide cylinder; 7-communicating pipe; The 8-communicating valve.
The specific embodiment
Embodiment 1
The present invention adopts following embodiment to implement: a kind of technique of vacuum pressure for dipping electrical, carry out according to following steps:
1. with low resin mica tape, the vacuum pressure impregnation jar of packing into is sealing also;
2. open the vacuum unit, vacuumize and make the vacuum pressure impregnation pressure tank reach 30Pa;
3. open communicating valve, the input carbon dioxide makes impregnating vessel pressure reach 0.15MPa, opens infrared low-temperature heating device simultaneously, the temperature that keeps impregnating vessel between 85 degree, 2 hours duration;
4. open the vacuum unit, be evacuated to below the 30Pa, pressurize 0.5-1 hour, make work-piece cools, then the isolated input lacquer;
5. after insulated paint fully soaks into workpiece, the unlatching air compressor will store up paint can and be pressurized to 0.6MPa, make insulated paint fully soak into workpiece, pressurize 1 hour;
6. open the vacuum unit, pressure release pushes back the storage paint can to 0.4MPa with the insulated paint in the impregnating vessel, finishes paint-dipping process.
7. workpiece was handled 3 hours in 95 degree bakings and curing.
Compare with traditional technology, the workpiece that employing the application's device processes obtains, normality dielectric loss and hot dielectric loss all will be far below preliminary drying technologies in the common stove; And the workpiece side disruptive field intensity has improved about 25-35%.
Fig. 1 is shown in the application's the structural representation of vacuum pressure impregnation device, comprise an impregnating vessel, storage paint can, vacuum unit and air compressor unit, the bottom of impregnating vessel is communicated with by transmission pipe with the bottom of storage paint can, transmission pipe is provided with defeated lacquer valve, the top of impregnating vessel is communicated with vacuum unit and air compressor unit by pipeline respectively, the top of impregnating vessel also is communicated with carbon dioxide cylinder by communicating pipe, and on this communicating pipe communicating valve is set.
Claims (5)
1. vacuum pressure impregnation device comprises: impregnating vessel, and with the tank connected storage paint can of dipping lacquer, the bottom of described impregnating vessel is communicated with by the transmission pipe road with the bottom of storage paint can, is provided with on the transmission pipe to fail to coat with lacquer valve; It is characterized in that: impregnating vessel is communicated with by communicating valve and vacuum unit, air compressor and the gas tank device that stores carbon dioxide respectively, and described impregnating vessel inside also is equipped with infrared low-temperature heating device.
2. the described vacuum pressure impregnation device of claim 1 is characterized in that described infrared low-temperature heating device also is equipped with temperature sensor and temperature control unit.
3. the described vacuum pressure impregnation device of claim 2 is characterized in that the temperature of infrared low-temperature heating device control impregnating vessel is 60-85 ℃.
4. the described vacuum pressure impregnation device of claim 1 is characterized in that on the top of impregnating vessel respectively being communicated with by communicating valve and vacuum unit, air compressor and the gas tank device that stores carbon dioxide.
5. the using method of the described vacuum pressure impregnation device of claim 1 is characterized in that may further comprise the steps:
1. the impregnating vessel of workpiece being packed into is sealing also;
2. open the vacuum unit, vacuumize impregnating vessel pressure is reached below the 30Pa;
3. open communicating valve, the input carbon dioxide makes impregnating vessel pressure reach 0.10-0.25MPa, opens infrared low-temperature heating device simultaneously, the temperature that keeps impregnating vessel between the 60-85 degree, duration 1-2 hour;
4. open the vacuum unit, be evacuated to below the 30Pa, pressurize 0.5-1 hour, make work-piece cools, then the isolated input lacquer;
5. after insulated paint fully soaks into workpiece, the unlatching air compressor will store up paint can and be pressurized to 0.5-0.8MPa, make insulated paint fully soak into workpiece, pressurize 0.5-1 hour;
6. open the vacuum unit, pressure release pushes back the storage paint can to 0.3-0.4MPa with the insulated paint in the impregnating vessel, finishes paint-dipping process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101033155A CN102179341A (en) | 2011-04-25 | 2011-04-25 | Vacuum pressure paint dipping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101033155A CN102179341A (en) | 2011-04-25 | 2011-04-25 | Vacuum pressure paint dipping device |
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| CN102179341A true CN102179341A (en) | 2011-09-14 |
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| CN2011101033155A Pending CN102179341A (en) | 2011-04-25 | 2011-04-25 | Vacuum pressure paint dipping device |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102527610A (en) * | 2012-02-10 | 2012-07-04 | 杨恩霖 | Vacuum low-temperature internal-heating drying and pollution eliminating method for insulating varnish |
| CN103451638A (en) * | 2013-09-02 | 2013-12-18 | 东南大学 | Pressure phosphating method for enhancing surface oxidation resistance of steel and iron materials |
| CN103611660A (en) * | 2013-12-05 | 2014-03-05 | 南车洛阳机车有限公司 | Decontamination vacuum lacquer impregnation tank and method |
| CN104410229A (en) * | 2014-12-23 | 2015-03-11 | 湘潭电机股份有限公司 | System and method for vacuum pouring of insulation resin used for motor rotor |
| CN104917321A (en) * | 2015-06-03 | 2015-09-16 | 卧龙电气集团股份有限公司 | 10KV high-voltage motor shaped coil and processing method thereof |
| CN104917320A (en) * | 2015-06-03 | 2015-09-16 | 卧龙电气集团股份有限公司 | 6KV high-voltage motor shaped coil and processing method thereof. |
| CN105914972A (en) * | 2016-07-12 | 2016-08-31 | 合肥新沪屏蔽泵有限公司 | Paint dipping process for stator for shield pump |
| CN108838026A (en) * | 2018-09-19 | 2018-11-20 | 河北科技大学 | A kind of ring potting adhesive curing device and process for filling colloid method |
| CN110098704A (en) * | 2018-01-31 | 2019-08-06 | 北京金风科创风电设备有限公司 | Process equipment and method for filling liquid to displace, impregnate and infiltrate armature |
| CN110518762A (en) * | 2019-08-08 | 2019-11-29 | 哈尔滨电机厂有限责任公司 | A kind of stator bar lacks glue insulation Novel heating curing method |
| CN112018974A (en) * | 2020-08-24 | 2020-12-01 | 浙江向阳齿轮机电有限公司 | Motor and manufacturing method thereof |
| CN113373617A (en) * | 2021-03-12 | 2021-09-10 | 山东玻纤集团股份有限公司 | Glass fiber baking and coating device and using method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB642892A (en) * | 1945-03-22 | 1950-09-13 | Western Electric Co | Improved moisture-resistant coating and method of producing it |
| JPS61231711A (en) * | 1985-04-05 | 1986-10-16 | Nissin Electric Co Ltd | Manufacture of molded coil |
| EP0502659A1 (en) * | 1991-03-04 | 1992-09-09 | General Electric Company | An apparatus and method for impregnating superconductor windings |
| JP2002198246A (en) * | 2000-12-27 | 2002-07-12 | Toshiba Corp | Method for manufacturing mold coil, and molding die |
| CN101086921A (en) * | 2007-04-20 | 2007-12-12 | 上海同立电工材料有限公司 | A vacuum pressure dipping technology and its application device |
| CN101086922A (en) * | 2007-04-20 | 2007-12-12 | 上海同立电工材料有限公司 | A vacuum balance method of vacuum pressure dipping technology and its device |
| CN101707423A (en) * | 2008-12-07 | 2010-05-12 | 新疆金风科技股份有限公司 | Paint immersing method of stator of outdoor open-type motor |
-
2011
- 2011-04-25 CN CN2011101033155A patent/CN102179341A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB642892A (en) * | 1945-03-22 | 1950-09-13 | Western Electric Co | Improved moisture-resistant coating and method of producing it |
| JPS61231711A (en) * | 1985-04-05 | 1986-10-16 | Nissin Electric Co Ltd | Manufacture of molded coil |
| EP0502659A1 (en) * | 1991-03-04 | 1992-09-09 | General Electric Company | An apparatus and method for impregnating superconductor windings |
| JP2002198246A (en) * | 2000-12-27 | 2002-07-12 | Toshiba Corp | Method for manufacturing mold coil, and molding die |
| CN101086921A (en) * | 2007-04-20 | 2007-12-12 | 上海同立电工材料有限公司 | A vacuum pressure dipping technology and its application device |
| CN101086922A (en) * | 2007-04-20 | 2007-12-12 | 上海同立电工材料有限公司 | A vacuum balance method of vacuum pressure dipping technology and its device |
| CN101707423A (en) * | 2008-12-07 | 2010-05-12 | 新疆金风科技股份有限公司 | Paint immersing method of stator of outdoor open-type motor |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102527610A (en) * | 2012-02-10 | 2012-07-04 | 杨恩霖 | Vacuum low-temperature internal-heating drying and pollution eliminating method for insulating varnish |
| CN103451638B (en) * | 2013-09-02 | 2015-10-28 | 东南大学 | A kind of pressure parco-lubrizing strengthening steel material surface resistance of oxidation |
| CN103451638A (en) * | 2013-09-02 | 2013-12-18 | 东南大学 | Pressure phosphating method for enhancing surface oxidation resistance of steel and iron materials |
| CN103611660A (en) * | 2013-12-05 | 2014-03-05 | 南车洛阳机车有限公司 | Decontamination vacuum lacquer impregnation tank and method |
| CN103611660B (en) * | 2013-12-05 | 2016-09-07 | 南车洛阳机车有限公司 | A kind of decontamination Vaccum Permeating paint can and dipping paint method |
| CN104410229A (en) * | 2014-12-23 | 2015-03-11 | 湘潭电机股份有限公司 | System and method for vacuum pouring of insulation resin used for motor rotor |
| CN104917321A (en) * | 2015-06-03 | 2015-09-16 | 卧龙电气集团股份有限公司 | 10KV high-voltage motor shaped coil and processing method thereof |
| CN104917320A (en) * | 2015-06-03 | 2015-09-16 | 卧龙电气集团股份有限公司 | 6KV high-voltage motor shaped coil and processing method thereof. |
| CN104917321B (en) * | 2015-06-03 | 2017-10-17 | 卧龙电气集团股份有限公司 | A kind of 10KV high-voltage motors formed coil and its processing method |
| CN104917320B (en) * | 2015-06-03 | 2018-01-19 | 卧龙电气集团股份有限公司 | A kind of 6KV high-voltage motors formed coil and its processing method |
| CN105914972A (en) * | 2016-07-12 | 2016-08-31 | 合肥新沪屏蔽泵有限公司 | Paint dipping process for stator for shield pump |
| CN110098704A (en) * | 2018-01-31 | 2019-08-06 | 北京金风科创风电设备有限公司 | Process equipment and method for filling liquid to displace, impregnate and infiltrate armature |
| CN108838026A (en) * | 2018-09-19 | 2018-11-20 | 河北科技大学 | A kind of ring potting adhesive curing device and process for filling colloid method |
| CN108838026B (en) * | 2018-09-19 | 2023-08-15 | 河北科技大学 | Ring glue filling solidifying device and glue filling process method |
| CN110518762A (en) * | 2019-08-08 | 2019-11-29 | 哈尔滨电机厂有限责任公司 | A kind of stator bar lacks glue insulation Novel heating curing method |
| CN112018974A (en) * | 2020-08-24 | 2020-12-01 | 浙江向阳齿轮机电有限公司 | Motor and manufacturing method thereof |
| CN113373617A (en) * | 2021-03-12 | 2021-09-10 | 山东玻纤集团股份有限公司 | Glass fiber baking and coating device and using method thereof |
| CN113373617B (en) * | 2021-03-12 | 2022-07-22 | 山东玻纤集团股份有限公司 | Glass fiber baking and coating device and using method thereof |
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Application publication date: 20110914 |