| 摘要 |
Tube heat exchanger provided with heat exchanging surface formed by uniform slender helical heat exchanging tubes (1) that are oriented in tube plates equally or alternately in two azimuths forming an angle (G) lower than 180 DEG and having their contour diameter (DE) greater than their pitch (T) in tube plates. Therefore, in case of the corresponding helix led in the heat exchanging surface numerous uniformly situated contact spots are formed. |
