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Double Stages Vacuum Transformer Oil Filtration
ZYD Double Stage Vacuum Transformer Oil Filtration Machine
**Application:**
The ZYD series double-stage transformer oil purifier is designed to efficiently remove water, trace moisture, gas, particles, as well as harmful components such as acetylene, hydrogen, and methane from the oil. This process enhances the dielectric strength of the oil, ensuring safe and stable operation of electrical equipment. It is particularly suitable for treating high-grade transformer oil, super-voltage transformer oil, and new transformer oil. The machine can be used on-site for live line work in substations above 110V. Additionally, it functions as an independent vacuum source for vacuum drying and vacuum oiling.
**Features:**
1. **Double-stage vacuum system** with strong vacuum evacuation capability, achieving an ultimate vacuum value ≤ 5Pa.
2. **Two vacuum separation chambers** with efficient oil film sprayers, increasing the surface area and contact time for better dehydration and degassing.
3. **Double-horizontal film evaporation technology**, combined with advanced dewatering and degassing components, ensures rapid and effective removal of water and gas.
4. **Multi-stage precision filtration system** using mesh filtration and molecular adsorption technologies.
5. **Efficient electric heating system** with uniform heating, low power consumption, and high safety.
6. **Dual infrared liquid level sensors** and pressure protection system for safe and reliable operation.
7. **Interlocked protective system** that connects the oil pump, heater, and liquid level sensor to prevent dry heating, empty pumping, oil leakage, and electrical faults.
8. **Onsite live line work, vacuum drying, and vacuum oiling capabilities.**
**Advantages:**
Compared to single-stage oil purifiers, the ZYD series improves effectiveness by more than three times, offering faster and more complete removal of moisture, gas, and particles. It also provides higher dielectric strength and can function as an independent vacuum source for power plants.
**Technical Parameters:**
| Index Name | Unit | ZYD-30 | ZYD-50 | ZYD-100 | ZYD-150 | ZYD-200 | ZYD-250 | ZYD-300 |
|--------------------|------|--------|--------|---------|---------|---------|---------|---------|
| Flow Rate | L/H | 1800 | 3000 | 6000 | 9000 | 12000 | 15000 | 18000 |
| Working Vacuum | MPa | -0.08~-0.099 | -0.08~-0.099 | -0.08~-0.099 | -0.08~-0.099 | -0.08~-0.099 | -0.08~-0.099 | -0.08~-0.099 |
| Working Pressure | MPa | ≤ 0.4 | ≤ 0.4 | ≤ 0.4 | ≤ 0.4 | ≤ 0.4 | ≤ 0.4 | ≤ 0.4 |
| Temperature Range | °C | 20~80 | 20~80 | 20~80 | 20~80 | 20~80 | 20~80 | 20~80 |
| Dielectric Strength| KV | ≥70 | ≥70 | ≥70 | ≥70 | ≥70 | ≥70 | ≥70 |
| Water Content | ppm | ≤3 | ≤3 | ≤3 | ≤3 | ≤3 | ≤3 | ≤3 |
| Gas Content | % | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 |
| Particle Size | μm | ≤1 | ≤1 | ≤1 | ≤1 | ≤1 | ≤1 | ≤1 |
| Power Supply | – | 380V 50Hz 3Ph (As per user's option) | 380V 50Hz 3Ph (As per user's option) | 380V 50Hz 3Ph (As per user's option) | 380V 50Hz 3Ph (As per user's option) | 380V 50Hz 3Ph (As per user's option) | 380V 50Hz 3Ph (As per user's option) | 380V 50Hz 3Ph (As per user's option) |
| Working Noise | dB(A) | ≤65~85 | ≤65~85 | ≤65~85 | ≤65~85 | ≤65~85 | ≤65~85 | ≤65~85 |
| Heating Power | kW | 24 | 30 | 60 | 90 | 125 | 136 | 151 |
| Total Power | kW | 27.5 | 35.5 | 68 | 105 | 135 | 148 | 168 |
| Inlet/Outlet | mm | Φ25 | Φ32 | Φ42 | Φ50 | Φ50 | Φ60 | Φ60 |
| Weight | kg | 650 | 750 | 900 | 1200 | 1800 | 1950 | 2300 |
| Dimensions (L x W x H) | mm | 1500x1250x1700 | 1500x1250x1750 | 1950x1300x2100 | 2100x1350x2200 | 2200x1350x2200 | 2250x1400x2200 | 2400x1450x2200 |
**Technology & Parts Introduction**
**Dehydration (Degas) System:**
The double-horizontal vacuum evaporation vessels significantly increase the evaporation area. The heater inside the vacuum vessel acts as an evaporator, allowing three times more evaporation area compared to traditional systems. This innovation enables efficient and separate dehydration and degassing. The increased oil surface exposure and extended flow path allow sufficient time to remove moisture and gas through vaporization.
**Filtering System:**
The filtering media consists of specialized glass fiber with gradually decreasing pore sizes across multiple stages. This allows step-by-step removal of impurities based on particle size, greatly improving the ability to remove particulate matter. The system includes reverse rinsing and dirt removal features, enhancing filtration efficiency and extending filter life.
**Electrical Control System:**
Main components are sourced from Siemens and Schneider, ensuring a safe and reliable control system. It includes an interlocked protective system and pressure protection to prevent overload, overvoltage, dry pumping, and electrical faults.
**Oil Heating System:**
The unique electric heater design ensures even heating. The system maintains less than 1.0W/cm² during operation, preventing oil degradation due to overheating. The temperature range is 0°C to 100°C, and the heater can be manually or automatically controlled. It stops automatically when the oil reaches a set temperature.
**Oil Level Control System:**
A floating ball and dual-infrared liquid level controller are installed in the vacuum vessel to regulate the oil level and prevent leaks during operation. A new innovation eliminates oil ejection and surging during the process.
**High-Quality Components:**
Key parts such as vacuum pumps, oil pumps, motors, and electrical components are imported from brands like Siemens, ABB, Schneider, Leybold, and Amico, ensuring product quality and reliability.
**Structure & Equipment:**
The oil purifier uses a ship-shaped chassis structure, making it oil-tight and environmentally friendly. It is compact, lightweight, and easy to move. Options include mobile or stationary versions, and both automatic and explosion-proof models are available upon request.
**Cooler & Condenser System:**
The system includes a cooler, condenser, and water receiver. Evaporated vapors and gases are cooled and dehumidified in the condenser before being condensed again in the cooler. The resulting condensed water is discharged via the water receiver, protecting the vacuum pump from damage.
**Other Main Products:**
- Series BZ Insulating Oil Recycling Machine
- Series TYA Lubricating Transformer Oil Purifier
- Series TY Turbine Transformer Oil Filtration Machine
- Series JZS/JZC Engine Oil Recycling Machine
- Series TPF Edible Oil Reclamation Machine
- Series TYK Phosphate Ester Fire-Resistant Transformer Oil Filter
- Series IIJ-II Insulating Oil Dielectric Strength Tester
- Series NKEE Oil Moisture Content Sensor
**User Options:**
1. Trailer type with fully closed housing for protection (waterproof and dustproof).
2. Customizable vacuum pump, oil pump, and electrical components.
3. Explosion-proof (EX type) electrical components.
4. Moisture sensor and dielectric strength tester installed on the machine.
5. Filter elements for different filtration requirements.
6. Stainless steel body for the oil purifier.