Sprinkler head for water spray cooling installations

A sprinkler head particularly suited for water spray cooling installations, where hot water flows through horizontal water distribution conduits or water distribution channels and is to be sprayed onto heat transfer structures thereunder, as it exits through a plurality of sprinkler heads mounted on a bottom wall of said distribution conduit or distribution channel, the sprinkler head comprising in combination:

• a downwardly oriented spray pipe attached to the bottom wall of the distribution conduit or distribution channel and communicating with the inside thereof to serve as an outlet, the spray pipe having a mouth portion at its lower extremity;
• at least one spray plate arranged centrally underneath the mouth portion of the spray pipe, so as to face upwardly against the latter;
• and
• means for carrying and holding the spray plate in said position against the impact of an impinging stream of liquid exiting from the mouth portion of the spray pipe;
• and wherein
• the spray plate has an outwardly and downwardly sloping upper surface of which an impinging stream of liquid is deflected and spread into a generally cone-shaped divergent spray pattern;
• and
• the spray plate further has extending through it a plurality of apertures through which a portion of said liquid stream can pass downwardly so as to cover an area which is located centrally within said spray pattern, said apertures being spray distributor slots extending inwardly from the periphery of the spray plate, forming a slot pattern in which groups of parallel, secantially oriented slots follow each other in a regular angular succession, whereby the slots of angularly adjacent slot groups are oriented substantially transversely to each other and the inner extremities of one group of slots are spaced substantially the same distance from the nearest slot of the adjacent group of slots.