Rainwater eddy flow sand-settling seepage well

Abstract

The invention discloses a rainwater eddy flow sand-settling seepage well which comprises a well body, wherein a water inlet pipe is arranged on a well wall of the well body; a sand storage zone and an oil storage zone are arranged in the well body; a baffle is arranged between the sand storage zone and the oil storage zone; a sand settling hole is formed in the middle part of the baffle; a separating device is arranged in the oil storage zone; the separating device comprises an outer barrel; the bottom of the outer barrel is opening; an inner pipe is connected with the top of the outer barrel; a water outlet pipe and a water seepage pipe are arranged on the side wall of the outer barrel; the height of the water seepage pipe is higher than the height of the oil storage zone. The rainwater eddy flow sand-settling seepage well has the beneficial effects that the silt content and the oil concentration in the rainwater can be effectively reduced, the non-point source pollution caused by emission into urban water can be reduced and local rainwater entering into the well can permeate into the ground through the well wall so that the underground water supplement can be realized.

Description

technical field [0001] The invention relates to the technical field of water infiltration wells, in particular to a rainwater swirling sand sedimentation infiltration well. Background technique [0002] Existing rainwater treatment devices or directly discharged into the municipal pipe network after sedimentation in the grit well, such as Figure 1-3 The sand settling wells shown generally adopt the principle of planar flow sand settling, which has the following disadvantages: low efficiency, difficult cleaning and maintenance, and inability to remove oil; or use infiltration wells to directly infiltrate rainwater, such as Figure 4 The infiltration well shown has the following disadvantages: low infiltration efficiency, easy to be blocked, and easy to affect the well foundation. Contents of the invention [0003] Aiming at the above-mentioned technical problems in the related art, the present invention proposes a rainwater swirling sand settling infiltration well to solve...

AI Technical Summary

Problems solved by technology

[0002] Existing rainwater treatment devices or directly discharged into the municipal pipe network after sedimentation in the grit well, such as Figure 1-3 The sand settling wells shown generally adopt the principle of planar flow sand settling, which has the following disadvantages: low efficiency, difficult cleaning and maintenance, and inability to remove oil; or use infiltration wells to directly infiltrate rainwater, such as Figure 4 The infiltration well shown has the following disadvantages: low infiltration efficiency, easy to be blocked, and easy to affect the well foundation

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