System for automatically feeding chemical liquids to cooling tow

Gas and liquid contact apparatus – Multiple diverse liquids

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Details

261 68, 261 70, 261DIG46, 137895, B01F 304

Patent

active

049461400

ABSTRACT:
A system for automatically feeding a chemical liquid to a cooling tower includes a water reservoir for storing water circulating through the cooling tower, a water feeding pipe extending into said water reservoir, a float valve provided in a passage of said water-feeding pipe, which is actuated in response to a variation in a water level in said water reservoir to open or close said passage, a means for increasing the flow rate of water flowing through said passage to inject water from a discharge port at the time when said float valve opens, a negative pressure generating chamber located in said passage and defined by said injection of water and a chemical liquid pipe in communication with said negative pressure generating chamber. A chemical liquid in the chemical liquid pipe is injected with water from the discharge port through the negative pressure generating chamber under the action of a negative pressure generated therein.

REFERENCES:
patent: Re25037 (1961-09-01), Brazier
patent: 2785012 (1957-03-01), Frewin
patent: 3196892 (1965-07-01), Savage et al.
patent: 3332871 (1967-07-01), Robinson
patent: 4259269 (1981-03-01), Flowers

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