There are water droplets on the generator oil return window

Introduction There are water droplets in the generator oil return window. Excessive adjustment of the shaft seal gap causes steam leakage. The function of the high pressure cylinder shaft seal (end steam seal) is to prevent steam from escaping along the rotor. The end

There are water droplets on the generator oil return window

Excessive adjustment of the shaft seal clearance causes steam leakage.

The function of the high pressure cylinder shaft seal (end steam seal) is to prevent the steam from escaping along the rotor. the front and rear of the high pressure cylinder bear the relatively large pressure difference. The pressure at the nozzle of the regulating stage under nominal operating conditions is 2.9 MPa, and the pressure after the 11th stage is 0.5 MPa. Differences exist, but also in order to prevent dynamic and static parts from colliding, a certain amount of space must be left. The existence of space will inevitably lead to steam leakage. The amount of steam leakage generally reaches 0.5% of the total steam. volume. Due to the above two reasons, it is easy for steam to escape into the bearing chamber along the rotor, causing the temperature of the bearing to increase, making qhe oil system contains water condensed by steam.

What harm does low hydrogen pressure in the turbogenerator affect the operation of the equipment?

I will use it if possible

If you understand electronics, watch what you charge. How many volts does the equipment have? Then, when making a step-down circuit, the battery must be used, otherwise the electricity in the generator will not be filtered. The battery is a filter capacitor. ensure stable power generation

If you don't understand electronics, buy a 12 to 220V converter for 80 yuan. It's convenient

Every place has a 220V power supply

The problem of excessive generator temperature rise

Low pressure Hydrogen indicates the amount of hydrogen inside the generator. Insufficient, it cannot completely cool the stator and rotor of the generator,and it is easy to cause the temperature of the generator stator and rotor windings to be too high and unable to receive the load normally. In addition, if the hydrogen pressure is too low, the pressure difference valve and the balancing valve of the seal oil system will not work properly. Hydrogen will leak easily, causing a fire. This will also cause the seal oil return flow to be blocked. which causes the seal oil tank to be full of oil, which damages the internal oil intake of the generator.

Common causes and solutions for excessively high generator temperature rise

(1) Cause: Overload time is too long.

Handling: Reduce load.

(2) Reason: Friction between stator and rotor core.

Treatment: Most of the reasons are caused by bearing damage. The machine must be stopped immediatelyimmediately to repair or replace the bearing.

(3) Reason: There is a short circuit or leakage in the stator winding.

Treatment: Check the stator winding.

(4) Reason: Poor heat dissipation in the air duct.

Treatment: Check if the air duct is blocked and the fan is damaged.

(5)Cause: Bad rectification state.

Processing: If it is a silicon rectifier, check the silicon components. Check if the field circuit is grounded.

(6) Reason: The engine is wet.

Processing: Drying can be done by short circuit current method.

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