System and apparatus for non-powered cleaning of tubular...

Heat exchange – With cleaning means for heat exchanger

Reexamination Certificate

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C165S094000

Reexamination Certificate

active

07735545

ABSTRACT:
In the present invention, a dual hull cyclone is incorporated into a non-powered cleaning system using balls for tubular heat exchange systems. The dual hull cyclone separates balls which are smaller than a predetermined diameter so that they can be disposed of and replaced. The dual hull cyclone also serves to separate debris from fluid in the tubular heat exchange system and also debris that may have accumulated on the balls. The cleaning system in accordance with the present invention comprises a plurality of balls circulating in the fluid of the heat exchange system, a ball inlet, a ball outlet, and a dual hull cyclone. The balls in the fluid are generally of a predetermined diameter suitable for cleaning the tubes in the heat exchange unit. While the balls may be made of a variety of elastomeric materials, almost any resilient material may be utilized. Furthermore, the balls used in the present invention utilize a asymmetrical weighted core to increase the specific gravity of the balls.

REFERENCES:
patent: 3841397 (1974-10-01), Eimer
patent: 3939065 (1976-02-01), Einarsson Ahlfors
patent: 4420038 (1983-12-01), Okouchi et al.
patent: 4498932 (1985-02-01), Kruka
patent: 4554965 (1985-11-01), Bochinski et al.
patent: 4569097 (1986-02-01), Echols
patent: 5388636 (1995-02-01), Peery
patent: 5482111 (1996-01-01), Bizard
patent: 1 703 208 (1992-07-01), None
WO 2006/009515, International Search Report and Written Opinion of International Searching Authority for PCT/SG2005/00195.

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