Flap valve and flap filter tank
A flap filter and valve technology, applied in the direction of filtration separation, gravity filter, loose filter material filter, etc., can solve the problems of flap valve and flap filter not tightly sealed, easy to lose filter material, etc. Achieve the effect of large specificity, high backwashing intensity and good pollution interception ability
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[0033] The embodiment of the flap filter is shown in Figure 1. This flap filter is provided with a filter tube 2 at the bottom of the pool body 1, and a water collection chamber 3 is provided at the bottom of the pool body 1. The water collection chamber and the filtered water outlet pipe 4 is communicated with the recoil pipe 9, a filter material layer 6 is arranged inside the tank body 1, and a recoil drainage channel 5 and an overflow weir 27 are communicated with respect to the outside of the pond wall of the filter material layer, and the filter tank is connected with the recoil drainage channel. The valve frame 8 is fixed on the hole 32, the lower side of the valve plate 7 is hinged with the valve frame 8, and the middle part of the valve plate is hinged with the driving mechanism, and the driving mechanism includes the driving cylinder 10. And the push-pull link 11, the push-pull link is hinged with the middle and upper part of the valve plate via the hinge 23. There is...
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