Selectively controllable water curtain damper for inlet face of

Details Selectively controllable water curtain damper for inlet face of Selectively controllable water curtain damper for inlet face of

1977-08-01

1978-12-12

Lutter, Frank W.

Gas and liquid contact apparatus

Contact devices

Wet baffle

261 67, 261DIG11, F28C 104

Patent

active

041296257

ABSTRACT:
A simplified, selectively actuatable deicing apparatus for evaporative water cooling towers is provided which permits selective delivery of hot water from the upper distribution basin to the outer margin of the tower for deicing of the fill structure and inlet louvers thereof in order to maintain adequate airflow through the tower during sub-freezing ambient conditions. The deicing apparatus includes a substantially continuous slot in the bottom of the distribution basin adjacent its outer margin, in combination with valving devices for directing the flow of hot water through any selected segment of the slot to the underlying outer margin of the tower. The hot water carrying flume which feeds the distribution basin has a normal water level spaced above the bottom of the basin and is in direct flow communication with the latter at an elevation corresponding to its bottom such that a substantial part of the tower water is available for delivery through the selected segment of the slot. The increased volume of water presented to the slot creates a thick curtain of water along the portions of the outer margin below the open segment of the slot, which curtain temporarily blocks the inflow of sub-freezing ambient air whereby deicing of the tower by the cascading hot water is significantly enhanced.

REFERENCES:
patent: 2512271 (1950-06-01), Green
patent: 3099696 (1963-07-01), Meek
patent: 3880964 (1975-04-01), Fordyce et al.
patent: 4048265 (1977-09-01), Fordyce et al.

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