The oil from theACG052K7NVBP China offers main sealing oil screw pump comes from the lubricating oil of the main oil tank, which is pressurized by the air side sealing oil pump and enters the air side sealing pad through the filter screen and pressure difference valve. Among them, the outlet of the oil pump leads a way to replenish oil to the sealed oil tank.

 

The function of sealing the oil tank:

(1) Seal the hydrogen gas and isolate the hydrogen system from the oil system. This not only prevents hydrogen gas from entering the oil system, but also ensures the pressure of hydrogen gas inside the machine, avoiding the mixing of hydrogen and air, causing explosion hazards;

(2) The oil returned from the hydrogen side of the sealing pad has a settling and separation effect, allowing the hydrogen contained in the oil to be separated and returned to the shell, thereby reducing hydrogen consumption;

(3) It can also play a role in regulating oil volume.

When supplying lubricating oil, emergency stop and discharge hydrogen until the internal pressure of the machine is within a certain range slightly higher than the sealing oil pressure, until the main engine lubricating oil pressure can seal the hydrogen. At this time, the sealing oil operation mode: main engine lubricating oil tank - lubricating oil system - differential pressure valve - generator sealing pad - main engine lubricating oil tank. Pay attention to the oil level in the float valve box. If the return oil is not smooth and the oil level is high, the bypass manual valve should be opened to control the oil level.

main sealing oil pump mechanical seal ACG070K7NVBP

Test Solenoid valve 22FDA-F5T-W220R-20/LP

main sealing oil pump HSNH280-46N

stator cooling water pump O-ring YCZ50-250C

Valve plate set KC50P-97

300MW turbine AC lube pump bearing sleeve 125LY-35-4

BLADDER LNXQ-AB-80/10 FY

Rubber Bladder for ST CWP Accumulator NXQ-A-/31.5-L-Y

trip globe valve SHV9.6

EH oil Re-Circulating pump F3-V10-1S6S-1C-20

BFP EH oil cooling oil pump coupling cushion HTGY6E.0

solenoid valve 22FDA-F5T-W220R-20/LBO

impeller 125LY-23

trip globe valve SHV20

main sealing oil pump coupling cushion ACG070K7NVBP

600MW turbine DC Emergency pump (EOP)Guide bearing 125LY-32

pump shaft KSB65-250A

stainless steel globe throttle check valve (welded) LJC50-1.6P

EH oil main pump 02-152165

needle valve SHV6.4

AST solenoid valve ZD.02.009

OPC solenoid valve 300AA00086A

actuator diaphragm 977HP

EH oil solenoid valve 4WE6D62/EG220N9K4/V

servo valve J761-003A

accumulator globe valve SHV20

actuator unloading valve HGPCV-02-B10

globe valve SHV4

OPC solenoid valve SV4-10V-C-0-00

bellows globe valve (flange) 50FWJ1.6P

vacuum pump 30SPEN

globe valve SHV20

main sealing oil pump ACG070K7NVBP

stop valve KHWJ25F1.6P

DFYLSYC-2023-09-08-A