Water exchanger and method for evaporative cooler

Details Water exchanger and method for evaporative cooler Water exchanger and method for evaporative cooler

1983-03-14

1985-04-16

Bennett, Henry

Refrigeration

Automatic control

Gas-liquid contact cooler, fluid flow

261DIG46, 261 27, 62310, F28D 300

Patent

active

045107661

ABSTRACT:
Apparatus and method are disclosed for refreshing the water in an evaporative cooler. The apparatus includes a sump in which water for the cooler is collected. The sump is divided into two portions by a dividing dam. A pump supplying water to the cooler is positioned in one portion of the sump; a drain is positioned in the other portion. The drain is normally closed by a ball and flapper assembly and the sump is normally filled to a preselected level higher than the dividing dam. Periodically the ball and flapper are raised to flush the water from the sump so that contaminates and minerals are flushed from the sump and the water can be replaced by fresh water. During the flushing cycle enough water is trapped in the first portion of the sump by the dam so that the pump can continue to operate. In one embodiment the periodic flushing is accomplished by a mechanical flushing timer incorporated with the pump motor.

REFERENCES:
patent: 2828761 (1958-04-01), Weibert
patent: 4333887 (1982-06-01), Goettl

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