F - Mech Eng,Light,Heat,Weapons – 01 – K
Patent
F - Mech Eng,Light,Heat,Weapons
01
K
60/53
F01K 9/02 (2006.01) B01D 5/00 (2006.01) F22D 11/00 (2006.01)
Patent
CA 1150067
Abstract: A side stream type condenser for a steam turbine of a power plant has a first hot well for condensing steam exhausted from the turbine and for storing such water, and a second hot well for storing purified condensed water to prepare it as water feed to a main system. A weir is located between the hot wells so that part of the water in the second well over- flows into the first well and keeps a fixed water level. The weir is constructed as a labyrinth having a passage normally filled up with the water, and a space in the upper part of the second hot well communicates with the upper space of the first hot well through this passage only. The condensed water in the first hot well is fed to and purified in a purifying system. It is then fed to the second hot well when the main system requires feed water and to the first hot well when not. The water level in the second hot well is controlled by causing the condensed water to overflow from the weir portion. The water level in the first hot well is controlled by a water level gauge. The quantities of water fed into and out of a storage tank for the feed water for the main system are contro- lled in accordance with the detected water level. The invention enhances the stability and responsiveness of the water level control, while also obtaining a high thermal efficiency.
358469
Masuda Toyohiko
Nagai Yoji
Nakamura Shozo
Tsunematsu Hiroshi
Ueno Takeshi
Hitachi Ltd.
Kirby Eades Gale Baker
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