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Jacking-up oil Device
Product number: CP010
Added time: 2023/11/27
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Working pressure 12 Mpa (normal)

Oil pump outlet pressure 21 Mpa (maximum)

Working medium Turbine oil 32# 46#

Filtration accuracy ≤40μm


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Product Details

In order to avoid the metal contact between the rotor journal and the bearing bush when the unit is started and stopped, the starting torque is reduced, and the steam turbine is equipped with a hydraulic top shaft device.

During normal operation of the unit, the rotor is supported on the dynamic oil film of the bearing, and the rotor is at a standstill when the turbine is ready to start or crank.

Although the lubricating oil system is normally supplied with oil, since the bearing oil wedge has no bearing capacity at this time, it is impossible to float the rotor. In this case, the starting unit or the rotating rotor is

It is necessary to overcome the frictional moment caused by the contact between the rotor journal and the radial bearing pad surface. Especially for the unit with large radial bearing load, the huge starting torque can easily damage the journal and the bearing bush.

In order to avoid this unfavorable situation, the steam turbine is equipped with a hydraulic top shaft device as shown.

Technical Parameters 

      Working pressure 12 Mpa (normal)

      Oil pump outlet pressure 21 Mpa (maximum)

      Working medium Turbine oil 32# 46#

      Filtration accuracy ≤40μm

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0573-88223782
No. 308, Hangfu Road, Chongfu Town, Tongxiang City, Zhejiang Province
jtu@jtupower.com