| 摘要 |
The present invention relates to an immersion type filtering device, comprising: an end cap to which the lower end of a hollow fiber membrane bundle, wherein a plurality of hollow fiber membranes are focused on, is connected, spaced apart in between the outer and inner side of the hollow fiber membrane bundle, and having a plurality of air outlets for washing the surface and inside the hollow fiber membrane bundle by discharging air supplied from outside; a separation membrane module spaced apart from the upper side of the end cap to be connected to the upper end of the hollow fiber membrane bundle, and having a cross-sectional area smaller than the cross-sectional area of a top cap for hollow fiber membranes to be densely arranged toward the upper side; a combining unit arranged on the end cap for continuous fastening of multiple separation membrane modules; separation membrane module units including an upper header located on the upper side of the multiple separation membrane modules for the top cap to be communicated and inserted; a frame supporting the combination of the upper header and end cap for the spaced arrangement of the multiple separation membrane module units in a row; and a diffuser arranged on the lower side of the separation membrane module units to spray air to the separation membrane module units. Accordingly, washed air from the diffuser is supplied from the separation membrane modules to the hollow fiber membrane bundle, the diffuser is arranged on the lower side of the separation membrane modules to remove structurally unnecessary space for compact structure in total, and the installation space can be reduced because the volume and the projected area of the product compared to throughput can be reduced. |
