| 摘要 |
PROBLEM TO BE SOLVED: To provide a submersible pump for deep well capable of performing efficient degassing without damaging a well casing or cable. SOLUTION: A submersible pump for deep well 1 includes a suction casing 10, a first pump section 20 installed over the suction casing 10, and including a first impeller 21 having a first hole 28 and a first intermediate casing 23 having a first degassing hole 39, a second pump section 40 assembled to the first pump section 20, and including a second impeller 41 having a second hole 47 and a second intermediate casing 42 having a second degassing hole 55, third pump sections 60 assembled in plurality to the second pump section 40, and a delivery casing 80 assembled on an upper tier of the third pump sections 60 as the uppermost tier. A first flange section 33 and a second flange section 50 are arranged on the extension of the first degassing hole 39 and the second degassing hole 55, thereby they are formed such that bubbles of discharged gas and hot well water can be stirred. COPYRIGHT: (C)2009,JPO&INPIT
|
