FLUID FILTER Russian patent published in 2013 - IPC B01D35/12 B01D29/66 

FIELD: process engineering.

SUBSTANCE: invention relates to filtration particularly, to removal of mechanical impurities by filters and auxiliary means of filter unloading by cleaned fluid backwash. Fluid assembly comprises filter with filtration element and sediment discharge pipe at filter bottom, initial fluid feed pipe with valve at filter inlet, and cleaned fluid discharge pipe with valve at filter outlet. Besides, is includes extra pipe with valve. One end of said pipe is connected to initial fluid feed pipe upstream of the valve of the latter. Opposite end of extra pipe is connected to cleaned fluid pipe between filter and valve of said pipe. Also, it includes delivery pump. Extra pipe is furnished with filter with filtration element and sediment discharge valve at filter bottom arranged between extra pipe valve and cleaned fluid pipe. Delivery pump is arranged at initial fluid pipe inlet.

EFFECT: filter efficiency of filtration, faster backwash.

1 dwg