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

The invention discloses a geothermal pulse pressure wave fracturing system comprising a geothermal well, an instrument, a pulse pressure wave generator, a pressure pump and a water tank, wherein the output end of the pulse pressure wave generator is connected with one end of a pulse pressure wave control valve, a water outlet of the water tank is connected with a water inlet of the pressure pump, and a water outlet of the pressure pump is connected with one end of a water pump control valve. The invention also discloses a geothermal pulse pressure wave fracturing method which adopts a mode of combining static pressure with pulse pressure to fracture a stratum layer and clean an original geothermal channel, the static pressure is generated by the pressure pump and pressure liquid, and the pulse pressure is generated by the pulse pressure wave generator. By adopting the system and method disclosed by the invention, ultrasonic waves are superimposed to the geothermal well fracturing static pressure to generate a long-distance, large-scale, periodical and continuous pressure acting area and result in that the wall of the geothermal well is ruptured, so that a new hot spring flowing channel is formed; and the pulse pressure waves are mechanical energy waves, so that rock cracks can be further expanded until a satisfactory fracturing effect is achieved.

The invention relates to a well mouth device with two purposes of self-seepage type groundwater recharging and pumping, and belongs to the technical field of water retention and crossing with water. The well mouth device comprises a recharging well lid and a pumping device. The well mouth device is characterized in that the recharging well lid is composed of a well opening head cover, a pumping device fixing ring beam and a geotextile inverted filter layer. The overall well lid is shaped like a hollow-core bottomless cylinder; a circular orifice surrounded by the pumping device fixing ring beam is formed in the middle of the top face of the upper portion of the well mouth head cover; circular water inlets are formed in the top face and the side face of the upper portion of the well mouth head cover respectively; the lower portion of the well mouth head cover adopts a watertight body; the geotextile inverted filter layer is arranged on the outer side of the well mouth and is consistent with the shape of the well mouth. The pumping device is composed of a water suction pump, a pump water pipe, a pump support and a pump valve. The water suction pump usually adopts a submersible pump; the pump support is a steel frame and is fixed on the pumping device fixing ring beam. By means of the well mouth device, organic combination of groundwater recharging and pumping is achieved, and the well mouth device has the advantages of being large in quantity of water recharge and capable of filtering particles in water, preventing silt, resisting rush and preventing low water level sewage recharging.

The invention discloses a method for controlling sedimentation through recharging engineering groundwater, comprising the following steps of: establishing a plurality of recharging working wells; ejecting a preset pipe to establish a recharging pipe; pumping groundwater in a dewatering well, meanwhile, carrying out purification treatment on the pumped groundwater, and recharging the groundwater to a water-bearing stratum. Due to the adoption of the method for controlling sedimentation through recharging engineering groundwater in the invention, high-flow groundwater recharge is realized, and groundwater pumping and recharging are kept balanced; and the method has the advantages of low cost, high efficiency, good sedimentation control effect and environment friendliness.

The invention discloses a well head device for both self-permeable type underground water recharging and water pumping, and belongs to the technical field of water conservation and water consumption. The well head device comprises a recharging well lid and a water pumping device and is characterized in that the recharging well lid is composed of a well head top lid, a water pumping device fixing ring beam and a geotextile reverse filtering layer; the whole well lid is a hollow bottomless tetrahedral body; a square orifice surrounded by the water pumping device fixing ring beam is formed in the middle of the top face of the upper portion of the well head top lid; circular water inlets are formed in the top face and the side faces of the upper portion of the well head top lid; an impermeable body is arranged at the lower portion of the well head top lid; the geotextile reverse filtering layer is arranged on the outer side of the well lid and matched with the well lid in shape; the water pumping device is composed of a water pumping pump, a water pumping pipe, a water pump support and a water pump valve; the water pumping pump is a submerged pump ordinarily; the water pump support is a steel frame and is fixed to the water pumping device fixing ring beam. According to the well head device, underground water recharging and water pumping are organically combined, and the well head device has the advantages of being large in recharging amount and capable of filtering out granules in water, preventing silt, resisting impact and preventing low-water-level sewage recharging.

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 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 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 discloses a self-seeping-type underground-water recharging and water-drawing dual-purpose well head device, and belongs to the technical field of intersection of water retention and watering. The well head device comprises a recharging well cover and a water drawing device. The well head device is characterized in that the recharging well cover is composed of a well-head top cover body, a water-drawing-device fixing ring beam and a geotextile reversed-filtering layer; the whole well cover is a hollow bottomless square table body; a square hole defined by the water-drawing-device fixing ring beam is formed in the middle of the top face of the upper portion of the well-head top cover body; circular water inlets are formed in the top face and the side face of the upper portion of the well-head top cover body; the lower portion of the well-head top cover body is a waterproof body; the geotextile reversed-filtering layer is arranged on the outer side of the well cover, and matched with the well cover in shape. The water drawing device is composed of a water drawing pump, a water pump water pipe, a water pump support and a water pump valve. The water drawing pump is a common submersible pump; the water pump support is a steel frame and is fixed to the water-drawing-device fixing ring beam. By means of the well head device, the organic combination of underground-water recharging and underground-water drawing is achieved, and the well head device has the advantages of being large in recharging quantity, capable of filtering particles in water, resistant to silt and impact and capable of preventing recharging of low-water-level sewage.

The invention discloses an automatic pressurizing recharging system. The system comprises a pressure tank. A booster water pump is arranged at an inlet of the pressure tank. An outlet of the pressure tank is connected with at least one flow divider. A liquid level transmitter used for detecting the liquid level in the pressure tank and a pressure transmitter I used for detecting the pressure in the pressure tank are mounted on the pressure tank. The booster water pump, the liquid level transmitter and the pressure transmitter I are connected with an intelligent controller. The intelligent controller sets control values to achieve automatic control over the pressure or the water level according to the pressure and the water level of the pressure tank.

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 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 discloses a residual water recharge well construction and recharge method based on shallow geothermal utilization. The technical problem that the recharge effect of a single well of an existing recharge well is not ideal is solved. The construction method comprises the steps that 1, the well completion position and the predicted well depth are determined; 2, the construction depth and the reducing depth of the recharge well are determined; 3, first well diameter drilling is carried out; step 4, drilling a well with a second well diameter; 5, a precipitation pipe and a water filter pipe are sequentially placed, a filter material is filled to form a water filter layer, and a water stop material is filled to form a water stop layer; the recharge method comprises the following steps of: 1, discharging residual water into the recharge well by using the water pump; 2, the water pumping amount of a water pump is controlled, and delta Hgt is guaranteed; delta S; and 3, when the water surface of the recharge well rises to the ground height and is still unstable, a pressure pump is started for pressurization and recharge. The single well recharge amount can be effectively increased, the number of recharge wells is reduced, space resources are saved, and the construction cost is reduced.

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.

The invention discloses a medium and low temperature geothermal well utilization system for a composite aquifer. The medium and low temperature geothermal well utilization system comprises the composite aquifer, an upper water-resisting layer, a submersible pump, a mining well, a geothermal water pipeline, a plate heat exchanger, a ground process part and a recharge well, the upper side of the composite aquifer is connected to the upper water-resisting layer, the mining well and the recharge well penetrate through the upper water-resisting layer to be inserted into the composite aquifer, the mining well and the recharge well are oppositely arranged, the plate heat exchanger and the ground process part are arranged in the middle of the geothermal water pipeline, the plate heat exchanger is arranged on the side close to the mining well, the submersible pump is arranged at the left end of the geothermal water pipeline and is inserted into the mining well, the right end of the geothermal water pipeline is inserted into the recharge well, the composite aquifer comprises a lower aquifer body, a lower water-resisting layer and an upper aquifer body, and the upper aquifer body, the lower water-resisting layer and the lower aquifer body are sequentially arranged on the lower side of the upper water-resisting layer.