The invention discloses a fuel
cell efficient membrane humidifier which at least comprises a shell, opposite humidifying medium inlets and outlets are formed in the two sides of the shell, a flow guide cavity is formed in the shell, and the humidifying medium inlets and outlets are communicated with the flow guide cavity; a membrane humidifying
assembly is arranged between the flow guide cavitiesin the two sides of the interior of the shell and is at least provided with humidifying membrane pipes arranged in a
square matrix mode; connecting flow guide end covers are arranged on the two sides,adjacent to the inlet and outlet, of the shell, and the flow guide end covers on the two sides communicate with air guide openings. By means of the structure, the
impact and separation effect betweenpipe bundles of the humidification film
pipe can be effectively reduced, disturbance in a flow field is reduced, and the flow
distribution uniformity of humidification media on the outer side of thehumidification film
pipe is improved; the air flow in the humidifying membrane tube is smoother, the membrane tube is prevented from vibrating, the resistance in the membrane tube is reduced, and theservice life of the membrane tube is prolonged; in addition, the uniform gaps formed in the longitudinal direction of the humidifying film
pipe increase the
filling rate of the film pipe and meanwhiledo not increase resistance, and therefore the
mass and
heat transfer efficiency of the whole humidifier is improved.