Head baffle of plate-fin heat exchanger

2013 
The invention discloses a head baffle of a plate-fin heat exchanger. A head comprises a fluid inlet tube and an arc head. A baffle is disposed in the middle of arc structure of the arc head. 1-3mm of thickness of the baffle is recommended. The baffle is provided with a plurality of through holes. The diameter of each through hole is one fifth of that of the inlet tube. Spacing of both transverse and longitudinal holes is half of the hole diameter. The through holes arrayed on the baffle include three feature regions, namely an inlet tube projection region, a projection peripheral region and a bilateral symmetry region. The baffle structure is provided according to the logistical distribution feature of the traditional head. The diameter of the through holes is defined. The head baffle is simple and practical. Logistical distribution condition inside the head is improved effectively. The structural parameters of the baffle are defined according to the structural size of the head, so that the head baffle is universal, can be used as design basis and is important to improving heat exchange performance of the plate-fin heat exchanger.
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