Film distribution device for vertical tube falling film

The utility model discloses a film distribution device for a vertical tube falling film, which comprises a heat exchange vertical tube, a film distribution tank body and a liquid inlet tube, wherein an outlet of the liquid inlet tube is communicated with the film distribution tank body and faces towards the circumferential direction of the film distribution tank body; the film distribution tank body takes the shape of a vertical cylinder and is provided with a circular hole at the bottom; the heat exchange vertical tube penetrates through the circular hole and forms an annular space at the circular hole; and the annular space is communicated with the space of the film distribution tank body. The film distribution device has the advantages of low manufacturing cost, uniform film distribution, convenient operation and difficult blocking.