| 摘要 |
PROBLEM TO BE SOLVED: To obtain a heat exchange apparatus in which the whole object to be heat-exchanged can be heat-exchanged efficiently even when the amount of the object to be heat-exchanged is small. SOLUTION: A vertically long reaction vessel 1 whose diameter is made smaller gradually to ward the bottom of the vessel is arranged. A jacket part 2 is arranged almost on the whole surface of the outer periphery of the vessel 1. A steam supplying pipe 3 for heating the vessel 1 and a cooling fluid supplying pipe 20 for cooling the vessel 1 are connected to the upper part of the part 2. An ejector 6 is connected to the lower part of the part 2. The ejector 6 is connected to a circulation pump 11 while a tank 10 is interposed between them. The whole object to be heat-exchanged can be heat-exchanged efficiently even when the amount of the object which is to be heat-exchanged and fed to the vessel 1 is small because the volume of the lower part of the vessel 1 is so small that the prescribed height can be kept and the large heat transfer area can be secured. COPYRIGHT: (C)2003,JPO
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