| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lifting type aeration/circulation apparatus in which a power supply system using a power cable is made unnecessary, by utilizing an air supply system which supplies pressure air to an air-diffusing pipe member of a barge side so as to also permit the driving of an elevating means of the air-diffusing pipe member. <P>SOLUTION: The lifting type aeration/circulation apparatus includes: the barge 1; an elevating machine 4 disposed on the barge 1; and the air-diffusing pipe member 6 which is hung down into water so as to be elevated by an elevating rope 5 of the elevating machine 4. The elevating machine is constituted with an air winch 4. The barge 1 is provided with switching means (first electromagnetic switching valve 45, second electromagnetic switching valves 46, 47), each of which selectively switches the pressure air, supplied from a main air supply hose 41 of an air supply source 40 of a mechanical chamber 11 on land, between the air-diffusing pipe member 6 and the air winch 4 and selectively switches the rise and fall of the air winch 4. <P>COPYRIGHT: (C)2012,JPO&INPIT |
