Huazheng HZLY-75 Single-Stage Transformer Oil Purification Machine (4500 LPH)

Product Overview

The HZLY-75 Transformer Oil Purifier is a single-stage vacuum oil purification system with a capacity of 4500 liters per hour. It effectively removes water, gases, and solid impurities from insulating oil, significantly enhancing its dielectric strength and ensuring the safe operation of high-voltage electrical equipment.

Key Features

• Removes moisture, gas, and particles from transformer insulating oil
• Increases oil breakdown voltage and improves overall oil quality
• Built-in vacuum dehydration and precision multi-stage filtration
• Low heat load design prevents oil degradation
• Automated operation with intelligent control system
• Ideal for on-site maintenance of transformers and high-voltage equipment

System Components

1. Vacuum System

• Comprises a vacuum chamber, vacuum pump, vapor condenser, and air intake system
• Optimized internal design increases oil exposure surface
• Ensures complete removal of dissolved gases and water

2. Filtration System

• Three-stage filtering process:
• Primary filter at the oil inlet protects the pump
• Two high-precision filters for effective fine filtration

3. Heating System

• Step-by-step gradual heating design
• Surface heat load ≤1.0 W/cm²
• Oil temperature range: 0–100ºC with automatic control and safety protection

4. Automatic Control System

• Equipped with frequency converter, water level transmitter, temperature sensor, vacuum sensor, and pressure monitor
• Data collected and processed via central control panel for safe and intelligent operation

Technical Specifications

• Model: HZLY-75
• Rated Flow Capacity: 4500 L/h
• Effective Oil Output: 75 L/min
• Vacuum Pumping Speed: 65 m³/h
• Working Pressure: ≤0.4 MPa
• Power Supply: 380V, 50Hz, 3-phase, 3-wire
• Heating Power: 48 kW (2 independent groups)
• Total Power: 55 kW
• Operating Noise: ≤75 dB(A)
• Inlet/Outlet Diameter: 45 mm
• Dimensions (L×W×H): 165 × 160 × 170 cm
• Weight: 560 kg

Applications

• On-site purification of transformer and insulating oil
• Vacuum drying and oil filling of transformers
• Maintenance of substations, power plants, and HV equipment