Descaling system for condenser cooling tubes

Claim 1

A descaling system for condenser cooling tubes designed to conduct a large number of descaling elements through the cooling tubes from a cooling water feed line and draw out used descaling elements from the discharge line of cooling water, characterized in that said descaling system comprises a tightly closed vessel; a cage member whose outer peripheral wall is fixed to the inner peripheral wall of the vessel and whose bottom end is fitted with a pipe for passage of descaling elements, and which acts as a receptacle for the descaling elements and allows the free passage of cooling water alone; a descaling element supply pipe whose forward end communicates with the vessel and whose rear end communicates with a cooling water discharge line; evacuating means for deaerating the vessel; a 3-port switching valve connected to the pipe fitted to the bottom end of the cage member; a feed pipe, one end of which is connected to the 3-port switching valve for communication with the pipe of the cage member by selective operation of said valve and the other end of which communicates with a cooling water feed line; and a discharge pipe for drawing out descaling elements from the vessel, one end of said discharge pipe being connected to the 3port switching valve for communication with the pipe of the cage member by selective operation of said valve and the other end of said discharge pipe extending outside of the vessel, and said discharge pipe further having its peripheral wall bored with openings for conducting the cooling water of the vessel into said pipe.