Underground water circulation well structure and using method thereof

Abstract

The underground water circulation well structure comprises a well body, an upper shaft and a lower shaft which are spliced up and down, a gravel filling layer is arranged between the upper shaft and the lower shaft, and the interior and the exterior of the well body on the two sides of the gravel filling layer are communicated. Underground water is preliminarily filtered through the gravel filling layer on the lower portion of the well body, large-particle solid impurities in the underground water are removed, then the underground water is pumped through the water pump, the preliminarily filtered underground water is conveyed to the spraying mechanism and combined with pesticide liquid, and the pesticide liquid is sprayed through staggered stirring of the outer impeller and the inner impeller in the spraying mechanism. And small-particle solid impurities in the underground water are further filtered out through the multiple layers of filter plates, and finally the underground water is discharged, so that the underground water quality is thoroughly purified, underground water circulation is promoted, and the purpose of repairing the underground water is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of groundwater restoration, in particular to a groundwater circulation well structure and a use method thereof. Background Art

[0002] A groundwater circulation well is a technical facility used for groundwater remediation and management. It usually consists of a central well pipe and an annular filtration area surrounding it. The central well pipe is used to extract groundwater, while the surrounding annular area is used to reinject treated water or clean water into the ground. Its working principle is to promote the migration and removal of pollutants through the local circulation of groundwater formed in the well.

[0003] Existing groundwater circulation wells generally perform preliminary filtration on groundwater before circulating it back. Although this method can improve water quality to a certain extent, the improvement in water quality is small and fails to completely purify the groundwater quality. Therefore, the present invention proposes a groundwater circulation well structure and a method of using it to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a groundwater circulation well structure and a method of using the same, so as to solve the problem that the existing groundwater circulation wells mentioned in the above background technology generally perform preliminary filtration on the groundwater and then circulate it back. However, although this method can improve the water quality to a certain extent, the improvement in water quality is relatively small and fails to completely purify the groundwater quality.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a groundwater circulation well structure and a method for using the same, comprising a well body, including an upper well shaft and a lower well shaft spliced ​​up and down, a gravel filling layer is arranged between the upper well shaft and the lower well shaft, and the inside of the well body on both sides of the gravel filling layer is connected to the outside; A partition assembly comprises a circular plate, the circular plate is arranged in the well body, a locking mechanism is arranged below the circular plate, and an upper wellbore and a lower wellbore of the well body are connected by the locking mechanism; A filter assembly, comprising a plurality of filter plates arranged at equal intervals in the well body and located above the circular plate, a water pump, and a water inlet pipe and a water outlet pipe connected to the water pump, wherein the water pump is arranged on the circular plate, one end of the water inlet pipe penetrates the circular plate and extends to the bottom of the well body, one end of the water outlet pipe penetrates each of the filter plates and extends above them, a spraying mechanism is arranged above the filter plates, and the water outlet pipe is connected to the spraying mechanism; The discharge assembly comprises a frustum movably arranged in the well body and a plurality of discharge ports arranged in an annular pattern on the well body, wherein the frustum and the discharge ports are both arranged between the circular plate and the filter plate.

[0006] As a preferred solution of the groundwater circulation well structure of the present invention, the lower end of the upper wellbore is stepped and matched with the lower wellbore, and the upper wellbore inside the gravel filling layer and the lower wellbore outside are both mesh tube structures; A sealing cover is provided at the top of the upper shaft, a gas collecting pipe is provided on one side of the sealing cover, a water collecting trough is provided at the bottom of the lower shaft, a filter head is provided at one end of the water inlet pipe located at the bottom of the well body, and the filter head is arranged in the middle of the water collecting trough of the lower shaft.

[0007] As a preferred solution of the groundwater circulation well structure of the present invention, wherein: the locking mechanism comprises a screw rod rotatably arranged at the bottom of the circular plate and a plug rod threadedly connected to both ends of the screw rod; The tops of the two insertion rods are provided with sliders, and both sides of the circular plate are provided with slide grooves, and the sliders of the insertion rods are arranged in the slide grooves of the circular plate; The screw is provided with a first worm wheel, the circular plate is also interspersed with a rotating rod, the bottom end of the rotating rod is connected with a first worm, and the first worm of the rotating rod is meshed with the first worm wheel of the screw.

[0008] As a preferred solution of the groundwater circulation well structure of the present invention, slots are provided on both sides of the upper wellbore and the lower wellbore, and the two insertion rods of the locking mechanism are respectively inserted into the slots on both sides of the upper wellbore and the lower wellbore.

[0009] As a preferred solution of the groundwater circulation well structure of the present invention, wherein: both ends of the screw are provided with external threads, and the spiral directions of the external threads at both ends of the screw are opposite, one end of the two insertion rods are provided with a thread groove matching the external threads of the screw, and the screw is screwed into the thread groove of the insertion rod to form a threaded connection.

[0010] As a preferred solution of the groundwater circulation well structure of the present invention, the spraying mechanism includes a columnar shell and a plurality of spraying pipes arranged in a ring on the columnar shell, one end of the columnar shell is rotatably connected to the water outlet pipe, and the other end of the columnar shell is rotatably connected to a drug delivery pipe, and the drug delivery pipe passes through the well cover and extends out of the well body; The cylindrical shell is provided with a V-shaped baffle between the water outlet pipe and the drug delivery tube, the water outlet pipe is provided with a plurality of inner impellers at equal intervals on the tube body inside the cylindrical shell, and a plurality of outer impellers are provided at equal intervals inside the cylindrical shell, and the number of the inner impellers is the same as that of the outer impellers and they are arranged alternately.

[0011] As a preferred solution of the groundwater circulation well structure of the present invention, the spraying mechanism further comprises a round shell arranged on one side of the water outlet pipe, a first rotating shaft inserted in the middle of the round shell, and a plurality of blades and a transmission member arranged on the first rotating shaft and located on the round shell; The transmission member includes a second worm arranged at one end of the first rotating shaft, a second rotating shaft, a second worm wheel and a driving gear arranged at both ends of the second rotating shaft, and a driven gear arranged on the cylindrical shell. A support seat is also arranged on one side of the water outlet pipe. The second rotating shaft is rotatably arranged on the support seat, the second worm wheel is meshed with the second worm, and the driving gear is meshed with the driven gear.

[0012] As a preferred solution of the groundwater circulation well structure of the present invention, spring telescopic rods are arranged on both sides of the frustum, one end of the spring telescopic rods is connected to the frustum, and the other end of the spring telescopic rods is fixed to the circular plate.

[0013] As a preferred solution of the groundwater circulation well structure of the present invention, the outer side of the frustum blocks the outlet of the well body, and a filter is also arranged in the outlet.

[0014] A method for using a groundwater circulation well structure comprises the following steps: Step (A), assembling the well body, installing the cone on the circular plate through a spring telescopic rod, then installing the water pump on the circular plate, connecting one end of the water inlet pipe to the filter head, then passing the other end of the water inlet pipe through the circular plate and connected to the water pump, passing one end of the water outlet pipe through the filter plate and the cone and connected to the water pump, and finally connecting the other end of the water outlet pipe to the spraying mechanism and the drug delivery pipe; piling gravel in an annular manner onto the wall of the lower wellbore to form a gravel packing layer; Step (A1), lift the circular plate from the top of the upper wellbore and insert it into the interior thereof until the insertion rods on both sides of the circular plate are flush with the slots of the upper wellbore, then rotate the rotating rod to rotate the first worm and drive the first worm wheel and the screw to rotate, and the insertion rods at both ends of the screw synchronously slide outward and insert into the slots of the upper wellbore until the ends of the insertion rods are flush with the outside of the upper wellbore, and then install the filter rod in the upper wellbore; Step (A2), pile gravel in a circular shape on the wall of the lower shaft to form a gravel filling layer, then splice the upper shaft with the lower shaft, align the slot of the lower shaft with the slot of the upper shaft, insert the filter head of the water inlet pipe into the middle of the water collection tank of the lower shaft, rotate the rotating rod again, make the plug rods at both ends of the screw rod slide further outward and insert them into the slots of the lower shaft, until the ends of the plug rods are flush with the outside of the lower shaft; Step (A3), passing the sealing cap through the drug delivery tube, then installing the sealing cap to the top of the upper wellbore, and finally installing the gas collection pipe on the sealing cap to complete the well body assembly; Step (B), pre-burying the well body underground, allowing groundwater from the stratum to enter the well through the mesh tube structure of the lower wellbore and the upper wellbore and be initially filtered by the gravel filling layer to remove large solid impurities, and the initially filtered groundwater is concentrated below the baffle assembly; Step (C), starting the water pump, drawing groundwater through the water inlet pipe, and then delivering it to the spraying mechanism through the water outlet pipe, and then connecting the drug delivery pipe to the drug liquid injection device, and injecting the drug liquid into the spraying mechanism through the drug delivery pipe; In step (D), when the outlet pipe transports groundwater, the water flow thrust drives the paddle on one side of the outlet pipe to rotate, thereby driving the first rotating shaft and the second worm to rotate, and then driving the second worm gear, the second rotating shaft and the driving gear to rotate, and the driven gear and the columnar shell are driven to rotate through the driving gear, thereby achieving the purpose of rotating the spray pipe; Step (E), the upper part of the columnar shell is supplied with liquid medicine through the medicine delivery tube, and the lower part of the columnar shell is supplied with groundwater through the outlet pipe, and the water is separated by a V-shaped baffle to prevent convection. When the columnar shell rotates, the outer impeller is driven to rotate, and the outer impeller in the columnar shell and the inner impeller on the outlet pipe are alternately stirred, so that the groundwater can be fully mixed with the liquid medicine to purify the water quality, and then sprayed out through the spray pipe; Step (F), the groundwater sprayed out from the spray pipe falls on the filter plate, and the small particles of solid impurities in the groundwater are filtered again by the filter plate and collected above the cone. When the cone collects a certain volume of groundwater, it pushes the cone compression spring telescopic rod to move it downward until the top of the cone moves to the discharge port, and the purified groundwater is discharged.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention performs preliminary filtration on groundwater through the gravel filling layer at the bottom of the well body to remove large solid impurities in the groundwater, and then extracts the groundwater through a water pump, and transports the preliminarily filtered groundwater to a spraying mechanism and combines it with a medicinal liquid. The outer impeller and the inner impeller in the spraying mechanism alternately stir the groundwater so that the groundwater can be fully mixed with the medicinal liquid to purify the water quality, and then further filters through a multi-layer filter plate to remove small solid impurities in the groundwater and finally discharge it, thereby thoroughly purifying the groundwater quality and promoting groundwater circulation, thereby achieving the purpose of repairing groundwater. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 3 It is a front cross-sectional structural schematic diagram of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure at A in the middle; Figure 5 It is a schematic diagram of the cross-sectional structure of the upper wellbore and the lower wellbore of the present invention; Figure 6 It is a schematic diagram of the top view of the partition assembly of the present invention; Figure 7 It is a bottom view structural schematic diagram of the partition assembly of the present invention; Figure 8 For the present invention Figure 7 A schematic diagram of the enlarged structure at B in the middle; Fig. 9 It is a structural schematic diagram of the spraying mechanism of the present invention; Fig.10 It is a schematic diagram of the cross-sectional structure of the columnar shell of the present invention; Fig.11 It is a schematic diagram of the front cross-sectional structure of the spraying mechanism of the present invention.

[0017] In the figure: 1, well body; 101, upper wellbore; 102, lower wellbore; 102a, water collecting tank; 103, gravel filling layer; 104, cover; 105, gas collection pipe; 106, slot; 2. Bulkhead assembly; 201. round plate; 201a. slideway; 202. locking mechanism; 202a. screw rod; 202b. insert rod; 202b-1. slider; 202b-2. threaded groove; 202c. first worm gear; 202d. rotating rod; 202e. first worm; 3. Filter assembly; 301. Filter plate; 302. Water pump; 303. Water inlet pipe; 303a. Filter head; 304. Water outlet pipe; 305. Spraying mechanism; 305a. Columnar shell; 305b. Spraying pipe; 305c. V-shaped baffle; 305d. Inner impeller; 305e. Outer impeller; 305f. Round shell; 305g. First rotating shaft; 305h. Paddle; 305i. Transmission member; 305i-1. Second worm; 305i-2. Second rotating shaft; 305i-3. Second worm wheel; 305i-4. Driving gear; 305i-5. Driven gear; 305i-6. Support seat; 306. Drug delivery tube; 4. Discharge assembly; 401. Cone; 402. Discharge outlet; 403. Spring telescopic rod; 404. Filter. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-11 , a groundwater circulation well structure and a method of using the same, comprising a well body 1, comprising an upper wellbore 101 and a lower wellbore 102 spliced ​​up and down, a gravel filling layer 103 is provided between the upper wellbore 101 and the lower wellbore 102, and the inside of the well body 1 on both sides of the gravel filling layer 103 is connected to the outside; The partition assembly 2 includes a circular plate 201, which is arranged in the well body 1. A locking mechanism 202 is arranged below the circular plate 201, and the upper wellbore 101 and the lower wellbore 102 of the well body 1 are connected by the locking mechanism 202; The filter assembly 3 includes a plurality of filter plates 301 arranged at equal intervals in the well body 1 and located above the circular plate 201, a water pump 302, an inlet pipe 303 and an outlet pipe 304 connected to the water pump 302, the water pump 302 is arranged on the circular plate 201, one end of the inlet pipe 303 penetrates the circular plate 201 and extends to the bottom of the well body 1, one end of the outlet pipe 304 penetrates each filter plate 301 and extends above it, a spraying mechanism 305 is arranged above the filter plate 301, and the outlet pipe 304 is connected to the spraying mechanism 305; The discharge assembly 4 includes a frustum 401 movably disposed in the well body 1 and a plurality of discharge ports 402 arranged in a circular pattern on the well body 1. The frustum 401 and the discharge ports 402 are both disposed between the circular plate 201 and the filter plate 301. It should be noted that the number of filter plates 301 is 1-5, and a through hole is provided in the middle of each filter plate 301 for inserting the water outlet pipe 304, and the number of outlets 402 is 2-6.

[0020] In this embodiment, the lower end of the upper wellbore 101 is stepped and matched with the lower wellbore 102. The upper wellbore 101 inside the gravel filling layer 103 and the lower wellbore 102 outside are both mesh structures, so that the groundwater outside the well body 1 can enter the well body 1 and be preliminarily filtered by the gravel filling layer 103. A cover 104 is provided at the top of the upper shaft 101, a gas collection pipe 105 is provided on one side of the cover 104, a water collecting tank 102a is provided at the bottom of the lower shaft 102, a filter head 303a is provided at one end of the water inlet pipe 303 located at the bottom of the well body 1, and the filter head 303a is provided in the middle of the water collecting tank 102a of the lower shaft 102; It should be noted that the gas collection pipe 105 is used to connect the exhaust gas treatment equipment to treat harmful gases in the well body 1. The water collection tank 102a at the bottom of the lower shaft 102 is concave from the outside to the inside to collect water, making it easier for the water inlet pipe 303 to draw water.

[0021] In this embodiment, the locking mechanism 202 includes a screw rod 202a rotatably disposed at the bottom of the circular plate 201 and an insert rod 202b threadedly connected to both ends of the screw rod 202a; The tops of the two insertion rods 202b are provided with sliders 202b-1, and both sides of the circular plate 201 are provided with slide grooves 201a, and the sliders 202b-1 of the insertion rods 202b are arranged in the slide grooves 201a of the circular plate 201; Specifically, two bearing seats are provided at the bottom of the circular plate 201, and the screw rod 202a is inserted into the bearing seats, so that the screw rod 202a can rotate but cannot slide left and right. The slider 202b-1 on the top of the insertion rod 202b is a T-shaped structure. Correspondingly, the slide grooves 201a on both sides of the circular plate 201 are also T-shaped structures. The two cooperate to enable the insertion rod 202b to slide under the circular plate 201; The screw 202a is provided with a first worm gear 202c, and the circular plate 201 is also interspersed with a rotating rod 202d, the bottom end of the rotating rod 202d is connected to a first worm 202e, and the first worm 202e of the rotating rod 202d is meshed with the first worm gear 202c of the screw 202a; Specifically, slots 106 are provided on both sides of the upper wellbore 101 and the lower wellbore 102, and two insertion rods 202b of the locking mechanism 202 are respectively inserted into the slots 106 on both sides of the upper wellbore 101 and the lower wellbore 102. This structure not only connects the upper wellbore 101 and the lower wellbore 102 to form the well body 1 through the insertion rods 202b, but also uses the insertion rods 202b as a support and limit for the circular plate 201; Both ends of the screw 202a are provided with external threads, and the spiral directions of the external threads at both ends of the screw 202a are opposite. One end of the two insertion rods 202b is provided with a thread groove 202b-2 that matches the external thread of the screw 202a. The screw 202a is screwed into the thread groove 202b-2 of the insertion rod 202b to form a threaded connection, so that when the screw 202a rotates, the insertion rods 202b at both ends of the screw 202a can move outward or inward synchronously.

[0022] In this embodiment, the spraying mechanism 305 includes a cylindrical shell 305a and a plurality of spraying pipes 305b arranged in a ring on the cylindrical shell 305a. One end of the cylindrical shell 305a is rotatably connected to the water outlet pipe 304, and the other end of the cylindrical shell 305a is rotatably connected to a drug delivery pipe 306, which passes through the well cover and extends out of the well body 1. It should be noted that the water outlet pipe 304 and the drug delivery pipe 306 are both provided with clamping rings, and the two ends of the columnar shell 305a are clamped into the clamping rings of the pipe body to form a rotational setting, and the number of the spraying pipes 305b is 2-6; The cylindrical shell 305a is provided with a V-shaped baffle 305c between the water outlet pipe 304 and the drug delivery pipe 306. The water outlet pipe 304 is located in the cylindrical shell 305a. A plurality of inner impellers 305d are evenly spaced on the tube body. A plurality of outer impellers 305e are evenly spaced in the cylindrical shell 305a. The number of the inner impellers 305d and the outer impellers 305e are the same and are staggered. It should be noted that the V-shaped baffle 305c is used to separate the water outlet pipe 304 and the drug delivery pipe 306 to prevent convection between the water body and the drug solution. The number of the inner impeller 305d and the outer impeller 305e is the same, both 2-4. The impeller structure is annular and has multiple notches distributed on the outside. The inner impeller 305d and the outer impeller 305e are alternately stirred to fully mix the water body and the drug solution. Furthermore, the spraying mechanism 305 further includes a round shell 305f disposed on one side of the water outlet pipe 304, a first rotating shaft 305g inserted in the middle of the round shell 305f, a plurality of paddles 305h disposed on the first rotating shaft 305g and located on the round shell 305f, and a transmission member 305i, wherein the number of the paddles 305h is 3-8; The transmission member 305i includes a second worm 305i-1 arranged at one end of the first rotating shaft 305g, a second rotating shaft 305i-2, a second worm wheel 305i-3 and a driving gear 305i-4 arranged at both ends of the second rotating shaft 305i-2, and a driven gear 305i-5 arranged on the cylindrical shell 305a. A support seat 305i-6 is also arranged on one side of the water outlet pipe 304. The second rotating shaft 305i-2 is rotatably arranged on the support seat 305i-6. The second worm wheel 305i-3 is meshed with the second worm 305i-1, and the driving gear 305i-4 is meshed with the driven gear 305i-5. It should be noted that the above structure uses the flow of water in the water outlet pipe 304 as a driving force, thereby driving the columnar shell 305a to rotate, thereby achieving the purpose of promoting the mixing of water and liquid medicine.

[0023] In this embodiment, spring telescopic rods 403 are provided on both sides of the cone 401, one end of the spring telescopic rod 403 is connected to the cone 401, and the other end of the spring telescopic rod 403 is fixed on the circular plate 201; Specifically, the outer side of the cone 401 blocks the outlet 402 of the well body 1 , and a filter 404 is provided in the outlet 402 to prevent external groundwater and external soil from entering the well body 1 through the outlet 402 .

[0024] The method for using the groundwater circulation well structure of the present invention comprises the following steps: Step (A), assembling the well body 1, installing the cone 401 on the circular plate 201 through the spring telescopic rod 403, then installing the water pump 302 on the circular plate 201, connecting one end of the water inlet pipe 303 to the filter head 303a, then passing the other end of the water inlet pipe 303 through the circular plate 201 and connected to the water pump 302, passing one end of the water outlet pipe 304 through the filter plate 301 and the cone 401 and connected to the water pump 302, and finally connecting the other end of the water outlet pipe 304 to the spraying mechanism 305 and the drug delivery tube 306; Pile gravel in an annular manner on the wall of the lower wellbore 102 to form a gravel packing layer 103; Step (A1), lift the circular plate 201 from the top of the upper wellbore 101 and insert it into the interior thereof until the insertion rods 202b on both sides of the circular plate 201 are flush with the slots 106 of the upper wellbore 101, then rotate the rotating rod 202d to rotate the first worm 202e and drive the first worm wheel 202c and the screw 202a to rotate, and the insertion rods 202b at both ends of the screw 202a synchronously slide outward and are inserted into the slots 106 of the upper wellbore 101, until the ends of the insertion rods 202b are flush with the outside of the upper wellbore 101, and then install the filter rod in the upper wellbore 101; Step (A2), pile gravel in a circular shape on the wall of the lower shaft 102 to form a gravel filling layer 103, then splice the upper shaft 101 with the lower shaft 102, align the slot 106 of the lower shaft 102 with the slot 106 of the upper shaft 101, insert the filter head 303a of the water inlet pipe 303 into the middle of the water collecting tank 102a of the lower shaft 102, rotate the rotating rod 202d again, so that the plug rods 202b at both ends of the screw rod 202a slide further outward and insert into the slot 106 of the lower shaft 102, until the end of the plug rod 202b is flush with the outside of the lower shaft 102; Step (A3), passing the sealing cap 104 through the drug delivery tube 306, and then installing the sealing cap 104 to the top of the upper wellbore 101, and finally installing the gas collection pipe 105 on the sealing cap 104, and completing the assembly of the well body 1; Step (B), the well body 1 is pre-buried underground, and the groundwater of the stratum enters the interior through the mesh tube structure of the lower wellbore 102 and the upper wellbore 101 and is initially filtered by the gravel filling layer 103 to remove large particles of solid impurities. The initially filtered groundwater is concentrated below the partition assembly 2; Step (C), start the water pump 302, draw groundwater through the water inlet pipe 303, and then deliver it to the spraying mechanism 305 through the water outlet pipe 304, then connect the drug delivery pipe 306 to the drug liquid injection device, and inject the drug liquid into the spraying mechanism 305 through the drug delivery pipe 306; Step (D), when the outlet pipe 304 transports groundwater, the water flow thrust drives the blade 305h on one side of the outlet pipe 304 to rotate, thereby driving the first rotating shaft 305g and the second worm 305i-1 to rotate, and then driving the second worm gear 305i-3, the second rotating shaft 305i-2 and the driving gear 305i-4 to rotate, and the driven gear 305i-5 and the columnar shell 305a are driven to rotate through the driving gear 305i-4, thereby achieving the purpose of rotating the spray pipe 305b; Step (E), the upper part of the cylindrical shell 305a is fed with liquid medicine through the medicine delivery tube 306, and the lower part of the cylindrical shell 305a is fed with groundwater through the outlet pipe 304, which is separated by the V-shaped baffle 305c to avoid convection. When the cylindrical shell 305a rotates, the outer impeller 305e is driven to rotate, and the outer impeller 305e in the cylindrical shell 305a and the inner impeller 305d on the outlet pipe 304 are alternately stirred, so that the groundwater can be fully mixed with the liquid medicine to purify the water quality, and then sprayed out through the spray pipe 305b; Step (F), the groundwater sprayed out by the spray pipe 305b falls on the filter plate 301, and the small particles of solid impurities in the groundwater are filtered again by the filter plate 301 and collected above the frustum 401. When the frustum 401 collects a certain volume of groundwater, it pushes the frustum 401 to compress the spring telescopic rod 403 to move it downward, until the top of the frustum 401 moves to the discharge port 402, and the purified groundwater is discharged.

[0025] In summary, the groundwater circulation well structure can filter and purify groundwater multiple times and can fully mix groundwater with liquid medicine, thereby thoroughly purifying the groundwater quality, promoting groundwater circulation, and achieving the purpose of repairing groundwater.

[0026] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A groundwater circulation well structure, characterized in that: include, A well body (1) comprises an upper wellbore (101) and a lower wellbore (102) connected up and down, a gravel filling layer (103) is provided between the upper wellbore (101) and the lower wellbore (102), and the inside of the well body (1) on both sides of the gravel filling layer (103) is connected to the outside; A partition assembly (2) comprises a circular plate (201), wherein the circular plate (201) is arranged in the well body (1), and a locking mechanism (202) is arranged below the circular plate (201), and an upper wellbore (101) and a lower wellbore (102) of the well body (1) are connected via the locking mechanism (202); A filter assembly (3), comprising a plurality of filter plates (301) arranged at equal intervals in the well body (1) and located above the circular plate (201), a water pump (302), a water inlet pipe (303) and a water outlet pipe (304) connected to the water pump (302), wherein the water pump (302) is arranged on the circular plate (201), one end of the water inlet pipe (303) passes through the circular plate (201) and extends to the bottom of the well body (1), one end of the water outlet pipe (304) passes through each filter plate (301) and extends above the filter plate (301), a spraying mechanism (305) is arranged above the filter plate (301), and the water outlet pipe (304) is connected to the spraying mechanism (305); The discharge assembly (4) comprises a frustum (401) movably arranged in the well body (1) and a plurality of discharge outlets (402) arranged in a circular pattern on the well body (1); the frustum (401) and the discharge outlets (402) are both arranged between the circular plate (201) and the filter plate (301).

2. The groundwater circulation well structure according to claim 1 is characterized in that: The lower end of the upper wellbore (101) is stepped and matched with the lower wellbore (102); the upper wellbore (101) inside the gravel filling layer (103) and the lower wellbore (102) outside are both mesh tube structures; The top of the upper shaft (101) is provided with a cover (104), one side of the cover (104) is provided with a gas collection pipe (105), the bottom of the lower shaft (102) is provided with a water collecting trough (102a), one end of the water inlet pipe (303) located at the bottom of the well body (1) is provided with a filter head (303a), and the filter head (303a) is arranged in the middle of the water collecting trough (102a) of the lower shaft (102).

3. The groundwater circulation well structure according to claim 1 or 2, characterized in that: The locking mechanism (202) comprises a screw rod (202a) rotatably arranged at the bottom of the circular plate (201) and an insertion rod (202b) threadedly connected to both ends of the screw rod (202a); The tops of the two insertion rods (202b) are each provided with a sliding block (202b-1), both sides of the circular plate (201) are provided with sliding grooves (201a), and the sliding blocks (202b-1) of the insertion rods (202b) are arranged in the sliding grooves (201a) of the circular plate (201); The screw rod (202a) is provided with a first worm wheel (202c), the circular plate (201) is also interspersed with a rotating rod (202d), the bottom end of the rotating rod (202d) is connected to a first worm wheel (202e), and the first worm wheel (202e) of the rotating rod (202d) is meshed with the first worm wheel (202c) of the screw rod (202a).

4. The groundwater circulation well structure according to claim 3 is characterized in that: Slots (106) are provided on both sides of the upper shaft (101) and the lower shaft (102), and the two insertion rods (202b) of the locking mechanism (202) are respectively inserted into the slots (106) on both sides of the upper shaft (101) and the lower shaft (102).

5. The groundwater circulation well structure according to claim 4 is characterized in that: Both ends of the screw rod (202a) are provided with external threads, and the spiral directions of the external threads at both ends of the screw rod (202a) are opposite, and one end of the two insertion rods (202b) is provided with a thread groove (202b-2) that matches the external thread of the screw rod (202a), and the screw rod (202a) is screwed into the thread groove (202b-2) of the insertion rod (202b) to form a threaded connection.

6. The groundwater circulation well structure according to claim 1 or 5, characterized in that: The spraying mechanism (305) comprises a columnar shell (305a) and a plurality of spraying pipes (305b) arranged in a circular pattern on the columnar shell (305a); one end of the columnar shell (305a) is rotatably connected to the water outlet pipe (304); the other end of the columnar shell (305a) is rotatably connected to a drug delivery pipe (306); the drug delivery pipe (306) passes through the well cover and extends out of the well body (1); The columnar shell (305a) is provided with a V-shaped baffle (305c) between the water outlet pipe (304) and the medicine delivery pipe (306); a plurality of inner impellers (305d) are evenly spaced on the tube body of the water outlet pipe (304) located inside the columnar shell (305a); a plurality of outer impellers (305e) are evenly spaced inside the columnar shell (305a); the number of the inner impellers (305d) and the number of the outer impellers (305e) are the same and are arranged alternately.

7. The groundwater circulation well structure according to claim 5, characterized in that: The spraying mechanism (305) further comprises a round shell (305f) arranged on one side of the water outlet pipe (304), a first rotating shaft (305g) inserted into the middle of the round shell (305f), a plurality of paddles (305h) arranged in a circular pattern on the first rotating shaft (305g) and located on the round shell (305f), and a transmission member (305i); The transmission member (305i) comprises a second worm (305i-1) arranged at one end of the first rotating shaft (305g), a second rotating shaft (305i-2), a second worm wheel (305i-3) and a driving gear (305i-4) arranged at both ends of the second rotating shaft (305i-2), and a driven gear (305i-5) arranged on the columnar shell (305a); a support seat (305i-6) is also arranged on one side of the water outlet pipe (304); the second rotating shaft (305i-2) is rotatably arranged on the support seat (305i-6); the second worm wheel (305i-3) is meshed with the second worm (305i-1); and the driving gear (305i-4) is meshed with the driven gear (305i-5).

8. The groundwater circulation well structure according to claim 1 or 7, characterized in that: Spring telescopic rods (403) are provided on both sides of the frustum (401); one end of the spring telescopic rod (403) is connected to the frustum (401), and the other end of the spring telescopic rod (403) is fixed on the circular plate (201).

9. The groundwater circulation well structure according to claim 8, characterized in that: The outer side of the cone (401) blocks the outlet (402) of the well body (1), and a filter screen (404) is also provided in the outlet (402).

10. A method for using the groundwater circulation well structure according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step (A), assembling the well body (1), installing the cone (401) on the circular plate (201) via the spring telescopic rod (403), then installing the water pump (302) on the circular plate (201), connecting one end of the water inlet pipe (303) to the filter head (303a), then passing the other end of the water inlet pipe (303) through the circular plate (201) and connected to the water pump (302), passing one end of the water outlet pipe (304) through the filter plate (301) and the cone (401) and connected to the water pump (302), and finally connecting the other end of the water outlet pipe (304) to the spraying mechanism (305) and the drug delivery pipe (306); Pile gravel in an annular manner on the wall of the lower wellbore (102) to form a gravel packing layer (103); Step (A1), lifting the circular plate (201) from the top of the upper wellbore (101) and inserting it into the interior thereof until the insertion rods (202b) on both sides of the circular plate (201) are flush with the slots (106) of the upper wellbore (101), then rotating the rotating rod (202d) to rotate the first worm (202e) and drive the first worm wheel (202c) and the screw (202a) to rotate, and the insertion rods (202b) at both ends of the screw (202a) are synchronously slid outward and inserted into the slots (106) of the upper wellbore (101) until the ends of the insertion rods (202b) are flush with the outside of the upper wellbore (101), and then the filter rod is installed in the upper wellbore (101); Step (A2), stacking gravel in a circular shape on the well wall of the lower wellbore (102) to form a gravel filling layer (103), then splicing the upper wellbore (101) with the lower wellbore (102), aligning the slot (106) of the lower wellbore (102) with the slot (106) of the upper wellbore (101), inserting the filter head (303a) of the water inlet pipe (303) into the middle of the water collecting trough (102a) of the lower wellbore (102), and rotating the rotating rod (202d) again, so that the insertion rods (202b) at both ends of the screw rod (202a) further slide outward and are inserted into the slots (106) of the lower wellbore (102), until the ends of the insertion rods (202b) are flush with the outside of the lower wellbore (102); Step (A3), passing the sealing cap (104) through the drug delivery tube (306), then installing the sealing cap (104) to the top of the upper wellbore (101), and finally installing the gas collection tube (105) on the sealing cap (104), thereby completing the assembly of the well body (1); Step (B), pre-burying the well body (1) underground, allowing groundwater in the stratum to enter the interior through the mesh tube structure of the lower wellbore (102) and the upper wellbore (101) and be initially filtered by the gravel filling layer (103) to remove large solid impurities, and the initially filtered groundwater is concentrated below the baffle assembly (2); Step (C), starting the water pump (302), drawing groundwater through the water inlet pipe (303), and then delivering the groundwater to the spraying mechanism (305) through the water outlet pipe (304), then connecting the drug delivery pipe (306) to the drug liquid injection device, and injecting the drug liquid into the spraying mechanism (305) through the drug delivery pipe (306); In step (D), when the water outlet pipe (304) transports groundwater, the water flow thrust drives the blade (305h) on one side of the water outlet pipe (304) to rotate, thereby driving the first rotating shaft (305g) and the second worm (305i-1) to rotate, and then driving the second worm wheel (305i-3), the second rotating shaft (305i-2) and the driving gear (305i-4) to rotate, and the driven gear (305i-5) and the columnar shell (305a) to rotate through the driving gear (305i-4), thereby achieving the purpose of rotating the spray pipe (305b); Step (E), liquid medicine is input into the upper part of the columnar shell (305a) through the medicine delivery tube (306), and groundwater is input into the lower part of the columnar shell (305a) through the outlet pipe (304), and is separated by a V-shaped baffle (305c) to avoid convection. When the columnar shell (305a) rotates, the outer impeller (305e) is driven to rotate, and the outer impeller (305e) in the columnar shell (305a) and the inner impeller (305d) on the outlet pipe (304) are alternately stirred, so that the groundwater can be fully mixed with the liquid medicine to purify the water quality, and then sprayed out through the spray pipe (305b); In step (F), groundwater sprayed from the spray pipe (305b) falls on the filter plate (301), and small solid impurities in the groundwater are filtered again by the filter plate (301) and collected above the cone (401). When the cone (401) collects a certain volume of groundwater, it pushes the cone (401) to compress the spring telescopic rod (403) to move it downward until the top of the cone (401) moves to the discharge port (402), and the purified groundwater is discharged.

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