| 摘要 |
PURPOSE:To allow the weight of a pump to act on the bottom part of a tank and lower the center of gravity of the tank so as to enable a piping system to be reduced, by connecting a delivery pipe to be arranged in the bottom part of the tank and removably jointing the delivery port of a pump of submergible type to an opening end part of this delivery pipe in the tank. CONSTITUTION:Connecting a delivery pipe 28 to be arranged in the bottom part of a tank 10, a delivery port 32 of a pump 14 of submergible type is removably jointed to an opening end part 30 of this delivery pipe 28 in the tank by a suitable jointing means. Further in this case, it is preferable to provide a suction port 34 of the pump of submergible type in the bottom end central part adjacent to a bottom surface in the tank while the delivery port 32 in one side part neighboring to the suction port 34. In such way, a load of the pump of submergible type, acting on the bottom part of the tank through the delivery pipe, enables the center of gravity of the tank to be placed in a lower position despite the constitution such that a manhole is provided in the top part of the tank so as to enable the pump of submergible type to be brought in and out. While a piping system can be decreased because the delivery pipe is inducted from the bottom part of the tank. |
