F - Mech Eng,Light,Heat,Weapons – 22 – B
Patent
F - Mech Eng,Light,Heat,Weapons
22
B
122/37
F22B 33/00 (2006.01) F01K 3/22 (2006.01)
Patent
CA 1129277
ABSTRACT OF THE DISCLOSURE A water outlet pipe 50 leading to a feed water tank 1 is connected to a separator 20 disposed downstream of an evaporator 15. A heat exchanger 6 and a first control valve 52 are disposed in the water outlet pipe, the valve being influenced by the level in the separator 20. In the heat exchanger 6 heat is transmitted, from the water flowing out of the separator, to the feed water flowing to the vapour or steam generator. Between the heat exchanger 6 and the first control valve 52 a bypass pipe 55 branches from the water outlet pipe 50 and contains a second control valve 56 which is also influenced by the level in the separator 20. The bypass pipe 55 leads into a condenser 35. A considerable proportion of the water leaving the separator 20 is discharged via the bypass pipe 55 to the condenser 35 as a result of said pipe 55 branching off upstream of the first control valve 52. Consequently, the flow cross-section of the first control valve 52 and the cross-section of the safety blow- off device to be provided on the feed-water tank can be consider- ably reduced in size.
342237
Gowling Lafleur Henderson Llp
Sulzer Brothers Limited
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