. Farm machinery and farm motors. ^ moving water, which is drawnup from the tank D. The swiftly flowing steam putssufficient momentum into the water to carry it into theboiler. The delivery tube E has a break in it at F wherethe surplus steam or water can overflow. An injector should 1)e chosen with reference to thespecial work required of it. Some will lift water, otherswill not. Some will start under low-pressure steam and ST£AM. FIG. 230—COMMERCIAL INJECTOR refuse to act under high, while with others the reverse istrue. There are also injectors which will operate withexhaust steam. Such an
. Farm machinery and farm motors. ^ moving water, which is drawnup from the tank D. The swiftly flowing steam putssufficient momentum into the water to carry it into theboiler. The delivery tube E has a break in it at F wherethe surplus steam or water can overflow. An injector should 1)e chosen with reference to thespecial work required of it. Some will lift water, otherswill not. Some will start under low-pressure steam and ST£AM. FIG. 230—COMMERCIAL INJECTOR refuse to act under high, while with others the reverse istrue. There are also injectors which will operate withexhaust steam. Such an injector is not essential, sincethe efficiency of one of high pressure is practically 100per cent. Locomotives are equipped with self-starting injectors. Every traction engine should be equipped with twosystems of boiler feeds. Some have two injectors, while 334 FARM MOTORS some have two pumps, but the most common method isa pump and injector. 454. Feed-water heaters.—The sudden change in tem-perature of boilers puts them under a great deal of of the principal reasons for this change in tempera-ture is the admitting of cold feed water. This water may-be easily heated by passing the exhaust steam throughit. There are two methods of such heating: one is toallow the exhaust steam to mingle with the water, thusbemg condensed and carried back to the boiler, and theother is to pass the feed water through pipes surr
Size: 1947px × 1284px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublisheretcetc, booksubject
