Square internal-external water inflow type wellhead device of infiltration recharge well

Abstract

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.

Description

technical field

[0001] The invention relates to a recharge well for self-seepage pressureless groundwater recharge, in particular to a wellhead device for self-seepage reverse filtration recharge wells with square inner and outer water inlets, belonging to the technical field of water conservation. Background technique

[0002] How to preserve water in some water-deficient areas or how to prevent seawater backflow caused by excessive exploitation of groundwater in coastal areas is a major issue that restricts local people's life and economic development. The means to solve this issue are to strengthen people's awareness of water conservation. Effective use of rain and flood resources is also one of the important measures.

[0003] In order to make full use of rain and flood resources, in seasonal rivers with no pollution or slight pollution, a kind of recharge well with the function of filtering particulate impurities in water is often arranged, that is, self-infiltration re...

Examples

Embodiment Construction

[0030] exist Figure 1-8 Among them, the wellhead device of this kind of internal and external water inflow self-infiltration reverse filtration reinjection well involves the reinjection well 8 and its wellhead device. The filter material 9, the recharge well 8 is located below the ground 10 at the bottom of the river or at the bottom of the canal.

[0031] The wellhead device includes a well cover 1 and a geotextile filter layer 3 .

[0032] The well cover 1 is composed of the upper part 11 of the well cover with the water inlet hole and the lower part 12 of the well cover buried in the bottom of the river or below the ground at the bottom of the canal. Can be rectangular. The center of the upper part of the well cover 1 is provided with a square hollow ring body groove with a groove bottom, and a circular water inlet hole is arranged on the outer side of the upper part of the well cover, that is, the water inlet hole 4 on the top surface of the well cover and the water inl...

technical field

[0001] The invention relates to a recharge well for self-seepage pressureless groundwater recharge, in particular to a wellhead device for self-seepage reverse filtration recharge wells with square inner and outer water inlets, belonging to the technical field of water conservation. Background technique

[0002] How to preserve water in some water-deficient areas or how to prevent seawater backflow caused by excessive exploitation of groundwater in coastal areas is a major issue that restricts local people's life and economic development. The means to solve this issue are to strengthen people's awareness of water conservation. Effective use of rain and flood resources is also one of the important measures.

[0003] In order to make full use of rain and flood resources, in seasonal rivers with no pollution or slight pollution, a kind of recharge well with the function of filtering particulate impurities in water is often arranged, that is, self-infiltration re...

Examples

Embodiment Construction

[0030] exist Figure 1-8 Among them, the wellhead device of this kind of internal and external water inflow self-infiltration reverse filtration reinjection well involves the reinjection well 8 and its wellhead device. The filter material 9, the recharge well 8 is located below the ground 10 at the bottom of the river or at the bottom of the canal.

[0031] The wellhead device includes a well cover 1 and a geotextile filter layer 3 .

[0032] The well cover 1 is composed of the upper part 11 of the well cover with the water inlet hole and the lower part 12 of the well cover buried in the bottom of the river or below the ground at the bottom of the canal. Can be rectangular. The center of the upper part of the well cover 1 is provided with a square hollow ring body groove with a groove bottom, and a circular water inlet hole is arranged on the outer side of the upper part of the well cover, that is, the water inlet hole 4 on the top surface of the well cover and the water inl...

Images