Browsing by Author "TSAI Chuen-Jinn"

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METHOD FOR MANUFACTURING A NOZZLE PLATE CONTAINING MULTIPLE MICRO-ORIFICES FOR CASCADE IMPACTOR
(2014-01-30)
TSAI Chuen-Jinn
;
CHEN Sheng-Chieh
;
CHEN Hong-Dar
A nozzle plate containing multiple micro-orifices for the cascade impactor and a method for manufacturing the same are disclosed. The nozzle plate is formed by a series of semiconductor processes, including lithography, etching and electroplating. The nozzle plate comprises a plate body and a plurality of micro-orifices formed on the plate body. The orifice has a diameter which gradually expands in the direction away from the bottom of the plate body to achieve a smooth inner surface, allowing particles to pass therethrough smoothly without being clogged in the nozzle plate.
WETTED WALL VENTURI SCRUBBER WITH A 2-STAGE VENTURI THROAT
(2013-02-14)
TSAI Chuen-Jinn
A venturi scrubber, which avoids clogging in the throat by dust particles, includes a venturi tube, two scrubbing fluid conduits and a scrubbing fluid tank. The venturi tube has a converging section, a diverging section and a throat section which is connected between the converging section and the diverging section. The scrubbing fluid conduit has a top end connected with the bottom end of the converging section of the venturi tube, and the scrubbing fluid conduit is connected with the scrubbing fluid tank. Thereby, scrubbing fluid can be guided directly into the scrubbing fluid tank without passing through the throat section. As a result, the clogging of dust particles on the converging section of the venturi throat can be minimized and the abnormal increase of the pressure drop of the throat can also be avoided.