半焊式板式换热器是用两张板片沿密封槽采用激光焊焊接成板对，板板片对用密封垫密封，以叠加的形式夹装在固定压紧板

活动压紧板中间的一种换热器。这种结构的优势在于一倒是煜接密封，另一但是垫片密封，方便清洗。而目在煌接侧，有两

个特别制作的角孔密封垫来密封两个角孔。这样，对于焊接侧的密封垫耗用量可以降至最低。

Semi-welded plate heat exchanger is this kind of heat exchanger whose plates are consist of two plates which is welded by laser along the seal groove, and the two plates are sealed by the gasekts which camped on the fixed plate and active plate through superposition. The advantage of semi-welded plate heat exchanger is that one side is sealed by welding and the other slede is sealed by gasket in order to clean easily. Meanwhile. there are two special gaskets to seal the two corner pores in the welding side in order to use the fewest seal gaskets.