External pressure tubular micro -filtration membrane

The utility model provides an external pressure tubular micro -filtration membrane, it includes: the membrane shell that inside cavity set up, its at least one end are provided with produces the mouthof a river, is provided with the water inlet and the dense mouth of a river on its lateral wall, the membrane core that inside cavity set up, it is located in the membrane shell, and with the clearance has between the membrane shell, produce the mouth of a river with membrane core's inner space keeps communicateing, and with the clearance keeps not communicateing, the water inlet and the dense mouth of a river with the clearance is linked together, membrane core's long -pending being greater than of outside face membrane core's inboard face is long -pending. The utility model discloses an external pressure tubular micro -filtration membrane's membrane core's long -pending being greater than of outside face membrane core's inboard face is long -pending, just intakes to advance water from membrane core's outside or