Patent ID: 6761190
Filing Date: 2004-07-13
Classification: B65D,B67D

Abstract:
A volatile liquid storage tank pressure reduction system for reducing the volume of vapor present in the ullage of a storage tank that contains volatile liquid, comprising:a conduit having an inlet port and an outlet port; a valve connected inline to said conduit, said valve having a valve inlet and a valve outlet; a pump and heat exchanger connected inline to said conduit downstream said valve outlet; and an electronic controller electrically coupled to said valve to control the opening of said valve and electronically coupled to said pump to activate said pump, wherein said electronic controller is adapted to open said valve and activate said pump to draw vapor from the ullage of the storage tank through said inlet port to pass the vapor through said heat exchanger to cool the vapor and return the cooled vapor through said outlet port to the ullage of the storage tank; wherein said heat exchanger includes a fan to circulate outside air inside said conduit to cool the vapor.