| 摘要 |
PURPOSE:To permit to obtain high heat transfer coefficient by a method wherein a thin tubular body, forming a small gap between the inner wall of the tube and provided with a vapor flowing port and an operating liquid flowing port at the upper and lower parts thereof, is inserted into the tube. CONSTITUTION:The thin cylindrical body 6, having a diameter slightly smaller than the tube 1, forming the small gap 7 between the inner wall of the tube 1 and provided with a continuous slit type vapor flowing port 8 on the upper part in the axial direction thereof, is inserted into the evaporating tube 1 equipped horizontally while the lower parts of both ends of the thin cylindrical body 6 are formed with the operating liquid flowing ports. According to this method, the contact area between the operating liquid on the inner surface of the tube 1 may be increased by the surface tension of the operating liquid 5 and the high heat transfer coefficient may be obtained. In this case, the size of the small gap 7 is the smaller the more effective. |
