Steam injector

Fluid sprinkling – spraying – and diffusing – Distributor having thermal expansion joint – differentially...

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Details

2394345, B05B 704, B05B 700

Patent

active

054622298

ABSTRACT:
A steam injector includes a casing having a water supply port and a steam intake port, the casing being generally composed of two halves fastened integrally, a water nozzle and a steam nozzle both disposed in the casing and communicated with the water supply port and the steam intake port, respectively, a steam-water mixing nozzle disposed on the downstream side in the casing and a diffuser disposed further downstream side in the casing. The steam injector further includes a guide member such as guide vane or spacer ring for guiding the steam to the steam-water mixing nozzle. The steam injector may includes a needle valve disposed in a steam jetting nozzle, disposed axially in the central portion of the casing, which is provided with a heat transfer preventing structure such as hollow wall structure provided on the outer peripheral surface of the steam jetting nozzle. The water nozzle may be composed of a wear resisting material and the wear resisting material may be provided on the surfaces of the steam jetting nozzle and the diffuser.

REFERENCES:
patent: 1508010 (1924-09-01), Circle
patent: 1660557 (1928-02-01), Heimburger
patent: 2013302 (1935-09-01), Ferguson
patent: 2660125 (1953-11-01), Frese
patent: 3688511 (1972-09-01), Harmstrof
patent: 4555059 (1985-11-01), Collins et al.
patent: 4688724 (1987-08-01), Pal et al.

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