| 摘要 |
PURPOSE: An oil heating device which can improve heat exchange efficiency is provided to rapidly transfer a large amount of oil by forming the diameter of a second oil tube larger than that of a first oil tube. CONSTITUTION: An oil heating device comprises a drum-shaped shell body(10), and first and second oil tubes(20,30). The shell body has a steam outlet(14) upon one side and a steam inlet(12) on the other side. The heat exchange operates in the inside of the shell body. A plurality of first oil tubes penetrate through the shell body. The second oil tube perpendicularly passes through the center of the shell body. The second oil tube has the diameter which bigger than the diameter of the first oil tube. While a large amount of oil passes through the second oil tube and has heat-exchange. |
