TANK MIXING SYSTEM AND VALVE THEREFOR

摘要

A mixing system [ 10] and valve(s) [ 12] are provided for a tank [ 13] or other container of liquid to be mixed. The directional flow control valve [ 12] is secured within the tank [13]. The directional flow control valve [12] includes a plate [32] secured adjacent an inlet supply [14] opening or an outlet supply [16] opening in the tank. The valve plate [32] has openings for enabling controlled maximum liquid flow into or out of the supply openings [14, 16], respectively. A floating disc [36] is also provided within the valve [ 12] and located in an aligned position to enable sealing engagement of the floating disc [36] over the plate openings [34] when the flow control valve [12] is in a closed position, and to enable movement of the floating disc [36] away from the plate openings [34] when the flow control valve is in an open position. An inlet and outlet supply [15] is also provided to supply liquid into and out of the tank [13]. The directional flow control valve [12] is secured adjacent either an inlet and/or outlet supply [15] and the tank [13]. An inlet and outlet conduit [18] is supported within the tank [13] for receiving or providing liquid to the tank [13]. Connected to the inlet and outlet conduit [18] is an inlet and outlet distribution conduit [20], which extends from the inlet and outlet conduit [18]and has inlet and outlet orifices [22] located therein. Liquid is mixed within the tank [13] when liquid is provided under pressure from the inlet supply [15] into the tank via the inlet and outlet orifices [22], or when liquid is removed from the tank [13] to the outlet supply [15] via said inlet and outlet orifices [22] under gravity or reverse pressure in pressurized vessels.