PUMPING-AERATING STIRRER USING GAS AND WATER TANK EQUIPPED WITH THE SAME

PROBLEM TO BE SOLVED: To provide an apparatus having both a pumping function and an aeration- stirring function for a liquid such as water, and to provide a water tank. SOLUTION: This apparatus which is set to a container w1 such as a water tank and is used for pumping up a liquid, such as water, filled in the container w1 to a position above the liquid level position of the container w1 with compressed air and for aeration-stirring the liquid comprises an upper closed container c which has an entrance i for flowing the liquid into the container c and a gas phase portion g for receiving the gas in the upper portion of the container c, a pumping pipe p which is used for pumping up the liquid and is opened at a position below the upper partition of the upper closed container c and above the entrance i and at a position above the liquid level position of the container w1, an aeration-stirring pipe d which is used for aeration-stirring the liquid, is opened at a position below the upper partition of the upper closed container c and above the entrance i, is approximately vertically extended through the upper partition, and is opened below the liquid level position of the container w1, and an aeration portion k for pressing the gas into a gas phase portion g. COPYRIGHT: (C)2003,JPO