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

The invention discloses a water settling, spring protection and recharging integrated device for foundation pit engineering. The water settling, spring protection and recharging integrated device is characterized in that one end of a recharging water quality treatment system is connected with a water settling well, the other end of the recharging water quality treatment system is sequentially and serially connected with a water quality monitoring system, a pressurizing and water collecting system, a wellhead device and a recharging well, and the water quality of the sucked underground water is analyzed by the recharging water quality treatment system and the water quality monitoring system; when the recharging water quality requirement is met, the recharging water enters the pressurizing and water collecting system, and the water of the pressurizing and water collecting system enters the recharging well through the recharging wellhead device at fixed flow rate and fixed pressure; when the recharging water quality requirement is not met, the recharging water flows back to the recharging water quality treatment system, and the water quality is analyzed and treated again. The water settling, spring protection and recharging integrated device has the beneficial effects that by utilizing the underground water recharging technique, the stability of the underground water level near the construction area can be effectively controlled, the deformation of adjacent stratum is prevented, and the safety threat of construction on the neighboring residents is reduced.

The invention belongs to the technical field of water retention and discloses a paired wellhead device of an infiltration recharge well. The wellhead device comprises a hard well lid and a geotextile infiltration layer fixedly arranged on the outer side of the well lid, the well lid comprises an upper well lid portion and a lower well lid portion which are in paired arrangement, the upper well lid portion is provided with water inlet 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, and the upper well lid portion is divided into two symmetrical portions by an elongated slot formed in the upper center of the well lid so as to form a left pairing body and a right pairing body. Round water inlet orifices are formed in the surfaces of the left pairing body and the right pairing body and the bottom of the elongated slot, the lower well lid portion is a watertight body, the elongated slot and water flow are the same in direction, and the geotextile infiltration layer is arranged on the outer side of the well lid and is identical to the elongated slot in shape. The paired 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.

The invention discloses a construction method for a spring protection recharge well in a sand and gravel stratum. The construction method solves the problems that a traditional recharge well system in the sand and gravel stratum is low in recharge water amount, low in recharge water quality, limited in recharge range and low in spring protection efficiency, has the beneficial effects that the recharge water amount is large, the recharge water quality control is good and the recharge influence range is wide and can well play the functions of protecting underground water in spring regions and protecting the surrounding environment. According to the technical scheme, the method comprises the steps that the level and the buried depth of underground water on the position to be recharged, the soil stratum distribution and the physical and mechanical indexes of different soil stratums are measured, and a recharge seepage pit is excavated in the position to be recharged; oblique guide holes are drilled in the bottom of the recharge seepage pit, and steel piles are put into the oblique guide holes; and a pipe well is constructed on the center position of the recharge seepage pit, clear water sand filtering layers are correspondingly laid on the parts, located under the underground water, of the steel pipes and the pile well, and an oblique recharge well and a pipe well recharge well are formed.

The invention relates to a semicircular dual-type self-infiltrating reverse-filtering recharge well mouth device and belongs to the technical field of water conservation. The well mouth device comprises a hard well cover, a geotextile reverse filtering layer and a pressurizing mechanism, wherein the well cover consists of a pair of well cover upper part and well cover lower part which are arranged in a dual manner, and the center of the well cover upper part is provided with an elongated slot which divides the well cover upper part into two symmetrical parts to form a semicircular left dual body and a semicircular right dual body; the outer surfaces of the left dual body and the right dual body and the bottom of the elongated slot are provided with round water inlet holes; the well cover lower part is a non-water-permeable body; the direction of the elongated slot is consistent with the water flowing direction; the geotextile reverse filtering layer is arranged on the outer side of the well cover and is fit with the shape of the elongated slot; the pressurizing mechanism comprises a vertical shaft and blades. The device has the advantages that under the situation that the external dimension of the well mouth device is unchanged, the flow passing capacity and anti-sediment and anti-washing capacity of a recharge pond can be obviously improved, and the service life of the recharge pond is prolonged; the recharge speed and efficiency are obviously improved.

The invention discloses a geothermal tail water recharging system which comprises a floater treatment and filter device (1), a solid particle filter device and a nitrogen protection device (4), wherein geothermal water extracted from a geothermal well is sent into a recharge well (6) by a pipeline pump (5) after being subjected to thermal extraction by a plate type heat exchanger. The geothermal tail water recharging system is characterized in that a geothermal tail water treatment system is arranged between the thermal extraction device and the pipeline pump (5), and the geothermal well, a plate type heat exchanger, the geothermal tail water treatment system and the recharge well (6) form a closed circulation system. With the adoption of the system, the geothermal recharging quantity is greatly increased, and the geothermal recharge duration time is greatly prolonged, so that the system is an effective measure for ensuring circulation and sustainable development of geothermal resources and has important significance for protecting the geothermal resources, reducing resource waste, prolonging the service life of a production well, reducing environmental pollution and the like.

The invention discloses a pressurizing and spring protection recharge well and method. The pressurizing and spring protection recharge well comprises a push rod pressure device, wherein the push rod pressure device is used for transmitting pressure to recharged water of a well pipe by a pressure conduction device; the pressure conduction device is arranged on the well pipe; a water filtering pipe is arranged under the well pipe; a water inlet channel is arranged on one side of the well pipe; a check valve is arranged at the connection part of the water inlet channel and the well pipe; the upper part of the water filtering pipe is connected with a pressure sensor; the pressure sensor is connected with a pressure control system by a steel pipe; the pressure control system is connected with a push rod pressurizing device by a pressure control connection device. According to the pressurizing and spring protection recharge well, the problems of ground subsidence caused by consolidation deformation of a ground layer adjacent to a construction region, which is caused by foundation pit dewatering, and waste of underground water resources in hydrogeological units of the construction region, which is caused by the foundation pit dewatering are solved; a series of problems that equipment and procedures are complicated, the occupying area is large, citizens are disturbed by construction and the like in a popularization process of an underground water recharge technology are solved, so that the recharge efficiency is improved and the recharge cost is reduced.

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.

The invention relates to a rectangular dual-type self-infiltrating reverse-filtering recharge well mouth device and belongs to the technical field of water conservation. The well mouth device comprises a hard well cover, a geotextile reverse filtering layer and a pressurizing mechanism, wherein the well cover consists of a well cover upper part and a well cover lower part, the well cover is a hollow bottomless cylinder on the whole, and the center of the upper part of the well cover is provided with an elongated slot which divides the well cover upper part into a rectangular left dual body and a rectangular right dual body; the outer surfaces of the left dual body and the right dual body and the bottom of the elongated slot are provided with water inlet holes; the well cover lower part is a non-water-permeable body; the geotextile reverse filtering layer is arranged on the outer side of the well cover and is fit with the shape of the elongated slot; the pressurizing mechanism comprises a vertical shaft and blades, upper end blades can rotate under the effect of water flow to drive lower end blades to synchronously rotate, and the lower end blades apply downward pressure to water which enters a recharge well to accelerate recharge speed. The device has the advantages that, under the situation that the external dimension of the well mouth device is unchanged, the flow passing capacity and anti-sediment and anti-washing capacity of a recharge pond can be obviously improved, and the 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.