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Hydraulic aggregate for hydraulic motors on separating station

 

Hydraulic aggregate is a drive unit for hydraulic motors on separating station (hydromotors are part of products from PKS servis spol. s r.o.). Unit is consist of steel welded tank with cubic capacity 300 dm3 with two inspection doors and optical level indicator. On the lid of the tank are placed electric motors with holders, which drives hydrogenerators coupled in tandem. The hydraulic aggregate is designed for ISO VG 46 mineral hydraulic oil.

The first electric motor with a power of 15 kW drives 4 hydrogenerators with a flow rate about 20 dm3 / min. The suction of individual hydrogenerators are equipped with suction filters with a filtering capacity of 90 μm. Hydraulic pressure branches are connected to a 4-position hydraulic block where the individual positions are independent. Each position includes a built-in safety valve, a hydraulic lock and a low-center directional distributor. This block controls vertical ZH1 63 / 36x200-R hydraulic motors. The individual positions have a common waste branch that is led to a waste filter with a filtering capacity of 10 μm and an electronic indication of the filter insert clogging.

Oil bath with elementsThe second 4 kW electric motor drives 4 hydrogenerators with a flow rate about 12 dm3 / min. suction of individual hydrogenerators are equipped with suction filters with a filtering capacity of 90 μm. Hydraulic pressure branches are connected to a 4-position hydraulic block where the individual positions are independent. Each position includes a built-in safety valve and a low-center directional distributor. This block controls horizontal EH-50 / 32x800-R hydraulic motors. The individual positions have a common waste branch that is led to a waste filter with a filtering capacity of 10 μm and an electronic indication of the filter insert clogging.

There is also a filler neck with an air filter, a thermostat for emergency temperature monitoring and a level indicator for monitoring the oil level.

Parameters (indicative values)

Cubic capacity:                              300 dm3
Working fluid:                                mineral oil HLP, VG 42
Range of operating viscosity:          (22 ÷ 400) mm2 · s-1 (cSt)
Operating temperature range:         (25 ÷ 55) ° C
Degree of oil filtration: waste           10 μm
hydrogenerator HG1-HG2
        - supply quantity approx.            20 dm3 / min
        - Working pressure (pumps)        max. 250 bar
hydrogenerator HG5-HG8
        - supply quantity approx. 12        dm3 / min
        - Working pressure (pumps)        max. 250 bar