reverse osmosis membrane element
A reverse osmosis membrane and element technology, applied in the field of reverse osmosis membrane elements, can solve the problems of small water production, easy pollution of reverse osmosis membrane, and few pure water channels
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Embodiment 1
[0021] Such as figure 1 , 2 As shown, the reverse osmosis membrane element 100 in this embodiment includes a central pipe 11, a water inlet spacer 12, a first reverse osmosis membrane 13, a first pure water diversion cloth 14, a second pure water diversion cloth 15 and a first pure water diversion cloth 15. Two reverse osmosis membranes 16, the water inlet spacer 12, the first reverse osmosis membrane 13, the first pure water diversion cloth 14, the second pure water diversion cloth 15 and the second reverse osmosis membrane 16 are stacked successively, they One side of the central tube is fixed on the outer wall of the central tube 11, and finally wound on the central tube 11. The first pure water guide cloth 14 and the second pure water guide cloth 15 form a multi-support point structure. A product water channel 18 is formed between the two opposite surfaces of the first reverse osmosis membrane 13 and the second reverse osmosis membrane 16 , and an inflow channel 17 is fo...
Embodiment 2
[0025] The reverse osmosis membrane element 200 in this embodiment is as image 3 As shown, it includes a central pipe 21 , a water inlet spacer 22 , a reverse osmosis membrane 23 and a pure water diversion cloth 24 . The water inlet screen 22, the reverse osmosis membrane 23 and the pure water diversion cloth 24 all have multiple layers, and the water inlet flow channel 27 and the water production flow channel 28 are respectively formed between the adjacent two layers of reverse osmosis membranes 23. The water flow channel 27 and the water production flow channel 28 are arranged at intervals, that is, except for the innermost and outermost two layers, a water production flow channel 28 is arranged on both sides of a water inlet flow channel 27, and a water production flow channel 28 is arranged on both sides of a water production flow channel 28. Water channel 27. A layer of the water inlet spacer 22 is placed in one water inlet flow channel 27, and a layer of pure water div...
Embodiment 3
[0027] The reverse osmosis membrane element 300 in this embodiment is as Figure 4 As shown, it includes a central pipe 31 , a water inlet spacer 32 , a reverse osmosis membrane 33 and a pure water diversion cloth 34 . The structure of the reverse osmosis membrane element 300 in this embodiment is substantially the same as that of the reverse osmosis membrane element 200 in Embodiment 2, the difference is that in this embodiment, the inlet water separator 32 is bent into a wave shape or a fan shape , the bent water inlet spacer 32 forms a multi-support point structure. Preferably, the layer spacing between adjacent layers of the wave shape (see Figure 5 L) shown in is 15-24 mm, the bending angle of the sector is 60-120 degrees, and the thickness of the pure water guide cloth 24 after bending is 0.3-0.5 mm. In this embodiment, the water inlet spacer 32 is bent into a wave shape or a fan shape, which increases the filtration area of the water inlet flow channel, thereby inc...
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