The Steam Injector
A theoretical and practical treatise on the design and operation of injectors and on the flow of fluids through and the design of nozzles.
Forfatter: V. A. B. Hughes
År: 1912
Forlag: The Technical Publishing Company Limited
Sted: London
Sider: 145
UDK: 621.176
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50
THE STEAM INJECTOR.
of the overflow arrangements, therø may, for example, be
a vacuum of 20 in. mercury (5 Ibs. pressure per square inch
absolute) at one pointi (as at b, fig. 24), and a pressure
above 5 Ibs. per square inch absolute at another (as at a,
fig. 24), and the two points may be freely communicating
Fig. 26.
with a common overflow chamber. Such. a condition must
result in a circulation of vapour from the point of higher
pressure to that of lower pressure, which will tenel to
spread and break the jet at the former point.
Fig. 27.
When the problem of constructing an injector capable of
working with exhaust in place of “live” steam was
seriously taken in hånd, the importance of the above be-
carøe evident, for owing to the large volume of steam to