UTERS  replace of INTERNORMEN  wind power gear box filter element 319435  01.NR 1000.32227.10VG.25G.25.B.V.-.S1 

Wind turbine fan gear box filter product introduction:

The wind power gear box filter is mainly used for filtering the hydraulic system of the turbine of the wind power station. This filter element is different from the ordinary filter element in that the filter element contains a stainless steel mesh filter element with a lower accuracy to ensure that the filter element is blocked during use. When the valve is opened, the filter element can still play a certain filtering effect, reducing unnecessary equipment wear and extending the service life of the equipment.

Wind turbine fan gear box filter element working principle and filter element parameters:

The wind power gear box filter is a two-stage filter. The accuracy of the two filters is 10 μm and 25 μm. Under normal working conditions, the lubricant is filtered through the 10 μ filter. When the 10 μm filter is blocked and the differential pressure is ≥ 4 bar, the check valve opens and the lubricant passes. 25μm filter. The differential pressure of the filter is monitored by a differential pressure transmitter. When the differential pressure is ≥3bar, the transmitter will prompt to replace the filter. (Note: When the lubricating system is just started and the temperature of the lubricating oil does not meet the requirements of normal working oil temperature (40 ° C), the viscosity of the oil is high. A relatively high pressure difference may form when passing the filter element. At this time, the differential pressure transmitter The signal is for reference only, not as an action signal.) There is a pressure measuring connector in front of the filter, which can be measured by a pressure gauge; a vent valve on the top of the filter is used to exclude the gas in the lubricating oil. The brazed cooler is of high quality Production of stainless steel sheet for water-oil heat exchange.

The lubricating device works. The working oil pump provides pressure lubricating oil to the system. The lubricating oil passes through the single-cylinder double-precision filter to the temperature control valve. The temperature control valve controls the flow of the lubricating oil according to the temperature of the lubricating oil. When the temperature is less than 45 ° C, the lubricating oil is directly Enter the gearbox; when the temperature is ≥45 ℃, the temperature control valve starts to operate, so that the lubricating oil is cooled by the cooler and then enters the gearbox. A pressure sensor is installed at the entrance of the gearbox (the set value is adjustable from 0 to 0.6bar) It is used to detect the pressure of lubricating oil. There is a safety relief valve at the pump outlet. When the system pressure is ≥12bar, the safety relief valve opens and returns the oil to the gear box.

Technical parameters of wind power gear box filter element:

Medium: general hydraulic oil filter element phosphate ester hydraulic oil emulsion water-glycol

Material: American LYDALL (Rand), Guobinz glass fiber filter (German HV and J.C.Binzer oil glass fiber), American HV, South Korea Oslon and AK, stainless steel braid

Filtration accuracy: 1μ-100μ

Working pressure: 21bar-210bar

Working temperature: -30 ～ + 100 ℃ 

Wind power gear box filter test standards:

Filtration resistance test according to ISO 2941

Filter element structural integrity according to ISO2943

Compatibility verification according to ISO2943

Filter filtration characteristics according to ISO4572

Filter differential pressure characteristics according to ISO3968

Flow pressure difference characteristic test according to ISO3968

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