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Patent Searching and Data


Title:
WATER TREATING APPARATUS FOR POWER GENERATING PLANT AND WATER TREATMENT
Document Type and Number:
Japanese Patent JPH11236689
Kind Code:
A
Abstract:

To prevent corrosion by injecting oxygen to a low pressure and high pressure feed water heater drain line to increase the oxygen concentration in equipments and pipe lines.

In a plant applying an oxygen treating method as the corrosion countermeasure, an oxygen injection pipe line 26 for injecting oxygen to the low pressure feed water heater 8 and the high pressure feed water heater 13, which are installed in a water feed line, is provided and oxygen is injected to the drain line of each feed water heater. Alternatively, steam from a bleeding pipe line 19 is supplied to the inside of the low pressure feed water heater 8 and the high pressure feed water heater 13, which are installed in the water feed line, and the steam is heat-exchanged with a feed water in a water feed pipe line arranged in each feed water heater, the drain of steam is introduced into drain lines 16, 17 and oxygen is injected to a part of a liquid phase in the inside of each feed water heater separated into a gas phase and the liquid phase.


Inventors:
KANBARA TOSHIO
SHIMONO NOBUO
Application Number:
JP4370298A
Publication Date:
August 31, 1999
Filing Date:
February 25, 1998
Export Citation:
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Assignee:
BABCOCK HITACHI KK
International Classes:
G21D1/00; C02F1/74; C23F11/18; C23F15/00; F01K21/06; (IPC1-7): C23F11/18; C02F1/74; C23F15/00; F01K21/06; G21D1/00
Attorney, Agent or Firm:
Kenjiro Take