B - Operations – Transporting – 07 – B
Patent
B - Operations, Transporting
07
B
209/102
B07B 1/00 (2006.01) B04C 5/12 (2006.01) B04C 7/00 (2006.01) F28G 1/12 (2006.01)
Patent
CA 1172207
ABSTRACT OF THE DISCLOSURE A sorting apparatus for sorting elastic balls for cleaning the inner surfaces of heat transfer tubes of a heat exchanger. The apparatus comprises a casing having a cylindrical cross-section, an inlet pipe connected to an upper portion of the wall of the casing and adapted to introduce the elastic balls together with the cooling water, a substantially frusto-conical separation sleeve disposed at the center of the casing and having a peripheral wall in which formed are a multiplicity of apertures shaped and sized to permit only the worn out elastic balls smaller than a prede- termined size to pass therethrough, an annular swirling passage defined between the inner peripheral surface of the casing and the outer peripheral surface of the separation sleeve and adapted to impart a swirl to the cooling water suspending the elastic balls and introduced into the casing, an outlet pipe connected to a lower portion of the wall of the casing and adapted for taking out the valid elastic balls greater than the predetermined size, and a discharge pipe also connected to the casing and adapted for discharging the worn out elastic balls which have been introduced into the separation sleeve.
380537
Miyai Masahiko
Mukai Yasuteru
Okouchi Isao
Otake Katsumoto
Sasaki Takuya
Hitachi Ltd.
Kirby Eades Gale Baker
LandOfFree
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