17. Generator Seal Oil System

January 27, 2019 | Author: banukiran samboju | Category: Pump, Valve, Vacuum, Pressure Measurement, Energy Technology

Short Description

Generator Seal Oil System...

Description

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Seal oil pumps

Emergen Standard cy

Number

:

2 Nos. AC

1 No. DC

Capacity

LPH

200

200

Discharge pressure

Kg/cm2 (g)

12

12

Shut off head

Mwc

140

140 11

Pump motor

KW rating

KW

7.5

Voltage rating

Volts

415 volts 220 volts 16

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•The seal oil filters are of magnetic strainer type, the magnetic strainer consists of the filter housing with a filtering cage and the filter cover.

•The filtering cage consists of fine-mesh wire cloth with support strainers on both sides and the magnet bars.

•The seal oil entering the filter must first passes through the magnetic field set up by the magnet bars so that all iron particles contained in the seal oil are attracted by the magnet bars.

•The seal oil then flows through the fine mesh wire cloth which retains all dirt particles containing no iron . 19

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The vapor exhauster establishes a vacuum in the generator bearing compartments and seal oil storage tank which prevents the escape of oil vapor from the bearing compartments along the shaft. •

In addition, the vapor exhauster draws off any hydrogen gas which may be admitted into the bearing compartments in the event of a shaft seal failure. •

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1. Drive motor 2. Regreasing device 3. Suction branch 4. Delivery branch

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Vapour Extraction Unit Type Capacity

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Radial Fan

Cu M/hr.

360

Motor size

KW

0.75

Quantity of Vapour Extraction Units

No.

2 X 100%

Gas System Volume of H2 space in generator

Cu.M

82

Cu.M/hr.

33

Normal

%

98

Minimum

%

96

Cooling gas flow Purity of H2 required

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Solid model of Shaft seal assembly

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17. Generator Seal Oil System

Short Description

Description

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