| 摘要 |
<P>PROBLEM TO BE SOLVED: To efficiently heat the liquid in a storage tank in a steam heat exchanger. <P>SOLUTION: The steam heat exchanger 1 includes the storage tank 2, a heat transfer tube 3 and an orifice 4. The storage tank 2 reserves liquid 21 to be heated. The heat transfer tube 3 is submerged in the liquid 21 with both ends projected from the liquid level. Steam S is supplied from one end of the heat transfer tube 3. The orifice 4 discharges a predetermined amount of drain D from the other end of the heat transfer tube 3. The steam heat exchanger 1 has a water sealing surface SD, at which the dryness of steam S becomes 0, at a portion, submerged in the liquid 21, of the heat transfer tube 3, and the flow direction on the water sealing surface SD is an axial direction of the heat transfer tube 3. <P>COPYRIGHT: (C)2011,JPO&INPIT |
