Liquid heaters and vaporizers – Circulation – With start-up operations
Patent
1979-12-17
1981-09-22
Favors, Edward G.
Liquid heaters and vaporizers
Circulation
With start-up operations
122451S, 122122, 122479S, F22B 3762
Patent
active
042903904
ABSTRACT:
A water outlet pipe leading to a feed water tank is connected to a separator disposed downstream of an evaporator. A heat exchanger and a first control valve are disposed in the water outlet pipe, the valve being influenced by the level in the separator 20. In the heat exchanger heat is transmitted from the water flowing out of the separator to the feed water flowing to the heating surfaces of the vapor or steam generator. Between the heat exchanger and the first control valve, a bypass pipe branches from the water outlet pipe and contains a second control valve which is also influenced by the level in the separator. The bypass pipe leads into a condenser. A considerable proportion of the water leaving the separator is discharged via the bypass pipe to the condenser as a result of the pipe branching off upstream of the first control valve. Consequently, the flow cross-section of the first control valve and the cross-section of a safety blow-off means provided on the feed-water tank can be considerably reduced in size.
REFERENCES:
patent: 3212477 (1965-10-01), Gerber et al.
patent: 3313111 (1967-04-01), Strohmeyer
patent: 3690303 (1972-09-01), Dolezal
patent: 4205633 (1980-06-01), Wittchon
Favors Edward G.
Sulzer Brothers Limited
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