30results about How to "Increase the amount of recharge" patented technology

The invention relates to a wellhead of a frustum-shaped internal-external water-inflow permeable inverted-filtering recharge well and belongs to the technical field of water retention. The wellhead comprises a well lid, a geotextile inverted filter and a pressurizing mechanism, the well lid is composed of a well lid top and a well lid bottom, the well lid top is arranged as a hollow-core annulus groove and provided with water inlet orifices, the well lid bottom is buried under a river bottom or trench bottom ground, the well lid is integrally a hollow-core bottomless frustum, and the hollow-core annulus groove arranged in the center of the well lid top is a cube-shaped groove with a groove bottom. The round water inlet orifices are arranged in the outer side of the well lid top, the inner side of the hollow-core annulus groove and the groove bottom. The well lid bottom is an impermeable body. The geotextile inverted filter is arranged on the outer side of the well lid and fits the outer side of the well lid and the hollow-core annulus groove in shape. The pressurizing mechanism comprises a vertical shaft and blades. Under the condition that the appearance and the size of the wellhead device are unchanged, flow capacity and silt prevention and antiseep capacity of a recharge pool can be improved obviously, service life of the recharge pool is prolonged, recharge is quickened, and recharge efficiency is improved beneficially.

The invention discloses an internal-and-external-inflow well head device of a self-infiltration filtration recharge well and belongs to the technical field of water retention The internal-and-external-inflow well head device of the self-infiltration filtration recharge well comprises a well cover and a geotextile inverted filter layer, and is characterized in that the well cover is composed of an upper well cover portion and a lower well cover portion, the upper well cover portion is shaped in a hollow ring groove and is provided with water inlet orifices, the lower well cover portion which is an impermeable body is buried in the ground of a river bottom or a channel bottom, the well cover is integrally shaped in a hollow bottomless cylinder, the hollow ring groove of the upper well cover portion is provided with a groove bottom, the round water inlet orifices are formed in the outer side of the upper well cover portion, the inner side of the hollow ring groove and the groove bottom, and the geotextile inverted filter layer is arranged on the outer side of the well cover and is identical to the outer side of the well cover and the hollow ring groove in shape. The internal-and-external-inflow well head device of the self-infiltration filtration recharge well has the advantages that on the premise that the outline dimension of the well head device is not changed, flow capacity and silt controlling and anti-impact capabilities of a recharge pool are improved remarkably, and the service life of the recharge pool is prolonged.

The invention belongs to the technical field of water retention and discloses a square internal-external water inflow type wellhead device of an infiltration recharge well. The wellhead device comprises a well lid, a geotextile infiltration layer and a pressurizing device, the well lid comprises an upper well lid portion and a lower well lid portion, the upper well lid portion is in the shape of a hollow annular groove and provided with water inflow orifices, the lower well lid portion is buried below a river bottom ground or a canal bottom ground, the well lid is a hollow bottomless cylinder integrally, round water inflow orifices are formed in the outer side of the upper well lid portion, the inner side of the hollow annular groove and the groove bottom, and the lower well lid portion is a watertight body. A water pressurizing mechanism comprises a vertical shaft and blades, the vertical shaft is fixed on the inner sidewall of the hollow annular groove, upper blades can rotate to drive lower blades to rotate synchronously under the action of water flow, and the lower blades downwardly pressurize water inflowing to the recharge well, so that recharge speed is increased. The square internal-external water inflow type wellhead device of the infiltration recharge well has the advantages that on the condition that the wellhead device is unchanged in overall dimension, discharge capacity and silt-preventing wash-resistant capacity of a recharge pond can be improved remarkably, and service life of the recharge pond is prolonged.

A wellhead device for a round inside and outside water inflow self-infiltration inverted filter recharge well belongs to the technical field of water retention. The wellhead device comprises a well lid, a geotextile inverted filter layer and a pressing mechanism, the well lid is composed of a well lid upper portion and a well lid lower portion, the well lid upper portion is provided with water inlet holes arranged in a mode of a hollow ring-shaped groove, the well lid lower portion is buried at the bottom of a river or underground, the well lid is a hollow bottomless cylinder on the whole, the center of the well lid upper portion is provided with a hollow ring-shaped groove which is a cylinder with a groove bottom; the outside of the well lid upper portion, the inside of the hollow core ring-shaped groove and the groove bottom are all provided with round water inlet holes; the well lid lower portion is a water-impermeable body; the geotextile inverted filter layer is arranged outside the well lid and is matched with the shape of the outside of the well lid and the hollow ring-shaped groove. The wellhead device for the round inside and outside water inflow self-infiltration inverted filter recharge well can evidently improve discharge capacity and slit-prevention and antishock capacity of a recharge pond under the condition that a boundary dimension of the wellhead device is unchanged, prolong service life of the recharge pond and remarkably improve recharge speed and efficiency.