The INTERNORMEN Fluid Purifier System, encompassing models IFPM21, IFPM31, IFPM/S71, and IFPS101, is an oil purification system designed for indoor operation. It effectively removes water, solid contamination, and gases from oil, returning the purified oil to its reservoir. The system operates autonomously once started.
Function Description:
The IFPM/S units draw oil from a reservoir via a hoseline or pipeline using a vacuum generated by an oil-lubricated rotary vane vacuum pump (13). The oil first passes through a preheater (1) and then enters a vacuum chamber (3) via a 2/2 solenoid valve (2). Within the vacuum chamber, the fluid is dispersed over a specialized material, creating a large free surface. Water vaporizes due to the lowered evaporation point in the vacuum. An air stream, introduced through a silica-gel air filter (4), flows counter to the oil's direction, acting as a carrier for the water vapor. A throttle valve (5) allows for vacuum adjustment. This process removes free, emulsified, and dissolved water. The humid air is then drawn by the vacuum pump and expelled into the atmosphere through a condenser (14) and a demister (15). The purified oil is pumped back into the reservoir by a hydraulic pump, specifically designed for vacuum operation.
Important Technical Specifications:
- Operating Temperature: 20...80 °C
- Ambient Temperature: 0...40 °C
- Viscosity Range: 12...700 mm²/s
- Noise Pressure Level: 69 dB (Af)* (at liquid viscosity of 32 mm²/s and adjusted vacuum of -0.6 bar)
- Degree of Protection: IP54
- Circulation Flow Rate (at liquid viscosity of 32 mm²/s and adjusted vacuum of -0.6 bar):
- IFPM21: 20 l/min
- IFPM31: 30 l/min
- IFPM/S71: 70 l/min
- IFPS101: 100 l/min
- Mass:
- IFPM21: 315 kg
- IFPM31: 325 kg
- IFPM/S71: 590 kg
- IFPS101: 790 kg
- Heating Power:
- IFPM21: 3 kW
- IFPM31: 3 kW
- IFPM/S71: 4 kW
- IFPS101: 8 kW
Usage Features:
The system is designed for ease of commissioning and operation.
- Installation: Units should be installed in a level position near the oil reservoir. For mobile units, the locking brake must be set before operation. The air outlet must remain open during operation.
- Electrical Connection: Connection is made via a CEE three-phase current connector (IEC 60309) with a phase-changing switch.
- Rotating Direction Check: Before initial operation, the rotating direction of the hydraulic pump motor must be checked. If incorrect, phases can be changed at the connector using a screwdriver. The vacuum pump's rotating direction is synchronized with the hydraulic pump.
- Silica-Gel Air Filter: The sealing of the Silica-Gel air filter must be removed, and its throttle valve completely opened before operation.
- Vacuum Chamber Emptying: The system allows for emptying the vacuum chamber, useful for conservation or preparing for a different tank.
- Viscosity Range Selection: Users must select the appropriate oil viscosity range (e.g., ISO VG 32, 46, 68, 100, 150, 220, 320, 460) during setup. This selection is crucial for the unit's overflow safety and to prevent malfunctions.
- Preheater Temperature Adjustment: The switch-off temperature of the preheater can be adjusted during operation, with the actual temperature displayed. Higher oil temperatures generally lead to faster dewatering.
- Vacuum Adjustment: The vacuum in the chamber can be adjusted using the throttle valve (5). Suggested vacuum parameters are provided for different oil types (e.g., HLP: -0.7 bar, CLP: -0.6 bar, HF-E: -0.7 bar, Transformer oils: -0.9 bar). The optimum vacuum and temperature depend on the fluid type and condition.
- Water Sensor (WSPS 05): This capacitive sensor indicates the water saturation level in oil as a percentage. It differs from the Karl-Fischer method, which measures absolute water content in mg/kg. 100% saturation means the fluid is totally saturated. Saturation values are temperature-dependent.
- Display Unit WFD01: This unit provides a clear display of water saturation and filter clogging.
- Water Saturation Level (%): An LED display indicates the water saturation level.
- 0-70% Saturation: Free water is unlikely; no danger of dissolved water.
- 70-90% Saturation: Free water is likely in small amounts; measures to reduce water content are suggested.
- 90-100% Saturation: Free water is present; dangerous for hydraulic/lubrication systems. Immediate measures to reduce water content are required.
- Clogging Indicator: An LED display indicates filter contamination.
- <50%: Filter element not used, pressure difference < 50% Δp-nominal.
- 50%: Starting contamination, pressure difference ≥ 50% Δp-nominal.
- 75% and S1: Moderate contamination, pressure difference ≥ 75% Δp-nominal, warning contact 1 switched.
- 90% and S1: Strong contamination, pressure difference ≥ 90% Δp-nominal.
- 100% and S2: Filter element used, pressure difference ≥ 100% Δp-nominal, warning contact 2 switched.
- Cold start indication (fluid temperature < 25 °C) does not indicate contamination.
- Collected Humidity Discharge: The collected humidity in the condenser can be discharged using the "Water out" ball valve. It is normal for little or no water to collect if the oil has low water content or is at a low temperature.
Maintenance Features:
- Hour Meter: The system includes an hour meter to track operating time, aiding in maintenance scheduling.
- Maintenance Interval Display: An internal clock tracks maintenance intervals. The display shows the time remaining until the next service. If the interval is exceeded, the display shows the elapsed time, and an alarm lamp blinks. Confirming "Service completed" at startup resets the interval.
- Filter Element Exchange: The "Filter Clogged" message indicates a clogged particulate filter element, requiring exchange and system restart.
- Vacuum Pump Lubricating Oil: The "No lubricating oil in v-pump" message indicates a low oil level, potentially due to a clogged coalescent element. This requires exchanging the coalescent element, refilling oil, and restarting the system.
- Troubleshooting: The manual provides a comprehensive troubleshooting guide for various failure messages, including "No oil," "Overflow," "Filter clogged," "No lubricating oil in v-pump," "Motor overload hydraulic pump," and "Motor overload vacuum pump," detailing possible reasons and remedies.
- Coalescent Elements: Only genuine Internormen coalescent elements should be used to keep emissions at the lowest possible level.
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