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KI- series Vacuum Pressure Impregnation Equipment |
1、Application scope
It is Mainly used on the insulation treatment of electrical products, e.g. the impregnation of HV motor, wind turbines, H type drying transformer, power capacitor and insulation material of cables. For example, through the vacuum pressure impregnation, motors or transformer windings can be evaporated at vacuum phase in order to reduce the influence of insulation from moisture, air and other impurities. At the pressure impregnation phase, resin can be immersed into structure inside thoroughly under pressure. Thus the whole insulation will be stronger, the insulation level and electric performance of product will be improved.
It also applies in material industry for modification and structure improvement in order to improve material performance, e.g. precision casting (graphite products, engine shell), fire brick, wood, etc. It could increase compactness, strength and resistance characteristic of graphite. For automotive engine castings and high pressure valves, it could thoroughly solve micro-leakage and improve qualification ratio by vacuum pressure impregnation. Fire brick and wood could change substrate property to reach different effectiveness by immersing different impregnation liquid (e.g. bitumen, aseptic, etc.) |
2、Categorization
●Vacuum pressure impregnation equipment for wind turbines, driven motor of multiple units and HV motor
●Vacuum pressure impregnation equipment for drying transformer
●Vacuum (pressure) oil impregnation equipment for drying bushing, capacitor
●Others |
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3、Advantages
●To easily evaporate moisture and air under process state
●Residual water rate less than 10ppm with good insulation
●Good humidity resistance
●High dielectric property
●Reuse of impregnation to reduce environmental pollution
●To impregnate objects with good effect in short time, which lead to promote the productivity greatly |
4、Features
●To well design and manufacture in combination with the advanced technology of pressure container, vacuum, pressurization, refrigeration, heating and auto control.
●With PLC or computer so as to fulfill full automatic in measurement and control.
●With safety alarm and interlock protection device in order to make sure safe operation. |
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5、Working principle
First, put objects into the vacuum pressure tank, evacuate the moisture and air from objects. Then fill impregnation liquid into vacuum tank by pressure difference or pump. In order to impregnation fully, the impregnation liquid will be dipped in the gap of objects by certain pressure.
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6、Typical process flow
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7、Constitution
●Vacuum pressure impregnation tank
●Resin storage tank
●Resin circulation pipeline system
●Vacuum system
●Pneumatic & pressurization system
●Heating system (optional)
●Refrigerating system(optional)
●Control system
●Cooling water system
●Ventilation system (optional)
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| 8、Schematic diagram |
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| 9、Standard specification |
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| Applications: |
| Ningbo AUX Transformer Co., Ltd. --- impregnation tank size: Ф3000×3000mm |
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| Nanjing Daqo Transformer Systems Co., Ltd. --- impregnation tank size: Ф2000×2000mm |
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| Zhejiang Sanbian Sci-Tech Co., Ltd. --- impregnation tank size: Ф2200×2200mm |
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| Yongji Xinshisu Electric Equipment Co., Ltd. --- impregnation tank size: Ф3000×3000mm |
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| Shanghai Huguang Transformer Co., Ltd. --- Impregnation tank size: Ф1600×1800mm |
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| ZhuZhou Bofen Technology Co., Ltd. --- Impregnation tank size: Ф5000×2100mm |
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| Xian Dunan Electric Co., Ltd. --- Impregnation tank size: Ф5000×2100mm |
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