The utility model discloses a dual-two-stage-heat pipe solar water heater comprising a heat collection unit (4), a heattransferunit and a water tank (3).
本实用新型公开了一种双二级热管式太阳能热水器，包括集热单元（4）、传热单 元以及水箱（3）。
2
A plate heat exchanger having an excellent sea water corrosion resistance is also provided wherein the aluminium alloy material is used as a heattransferunit using sea water as cooling water.
另外，该板式换热器是将海水作为冷却水的传热部使用所述铝合金材料的耐海水腐蚀性出色的板式换热器。
3
HIMOD flagship series USES interactive "type v" coil, the internal thread copper tube and punched slotted fin, and heattransfer efficiency is higher than the traditional coil unit.