CN108252294B

CN108252294B - Foundation pit groundwater recharge system

Info

Publication number: CN108252294B
Application number: CN201810103060.4A
Authority: CN
Inventors: 陈金碧
Original assignee: Zhongwei Construction Engineering Co Ltd
Current assignee: WENZHOU HUARUI CONSTRUCTION Co.,Ltd.
Priority date: 2018-02-01
Filing date: 2018-02-01
Publication date: 2019-12-13
Anticipated expiration: 2038-02-01
Also published as: CN108252294A

Abstract

The invention relates to a foundation pit groundwater recharge system, which comprises a pumping well, a recharge well and a treatment system arranged between the pumping well and the recharge well and used for treating water pumped by the pumping well, the treatment system comprises a reservoir for storing water pumped by the pumping well, a filtering unit for filtering the water in the reservoir, a sterilizing unit for sterilizing the water filtered by the filtering unit, an active carbon adsorption filtering unit for filtering the sterilized water and a recharging pool for storing the water filtered by the active carbon adsorption filtering unit, which are sequentially communicated, a recharge pump for pumping water in the recharge tank into the recharge well is arranged in the recharge tank, when the pumped water is injected into underground water, the water is treated so that the quality of the injected groundwater is higher than that of the groundwater, and when the water is injected into the groundwater, the quality of the groundwater is not easily polluted.

Description

foundation pit groundwater recharge system

Technical Field

The invention relates to a foundation pit underground water recharging system.

Background

In foundation pit engineering, in order to ensure that earth excavation and foundation construction are in a dry state or improve the stability of a foundation pit slope, a dewatering method is often adopted to reduce water inside or outside a foundation pit to a position below an excavation surface, but along with the reduction of an underground water level, the effective self-weight stress of a soil body below the original water level in the foundation is increased, so that the soil body of the foundation is solidified, the phenomena of uneven settlement, inclination, cracking and the like of the ground and a building within the influence range of dewatering are caused, and the safety and normal use of the foundation can be endangered in serious cases.

In order to eliminate the influence of the foundation pit precipitation on the surrounding environment, a recharge method is usually adopted to eliminate the influence of the foundation pit precipitation on the surrounding environment, but during recharge, the water quality of groundwater entering the ground cannot be guaranteed, so that the water quality of the groundwater is influenced, and the public safety is seriously damaged.

Disclosure of Invention

The invention aims to provide a foundation pit underground water recharging system which has the advantages that the underground water quality is guaranteed, and the underground water quality is not easily affected.

The technical purpose of the invention is realized by the following technical scheme: the utility model provides a foundation ditch groundwater recharge system, includes the pumped well, recharges the well and sets up the processing system who is used for handling the water that the pumped well was taken out between pumped well and recharging well, processing system is including the cistern that is used for storing the water that the pumped well was taken out in proper order communicating, be arranged in with the filtered filter unit of water in the cistern, be used for with the water sterilizing after the filter unit filtration sterilizing unit, be used for with the water filtering after the sterilization processing active carbon adsorption filter unit and be used for with the recharge pond of the water storage after the active carbon adsorption filter unit filtration, be provided with in the recharge pond and be used for taking out the water in the recharge pond to the recharge well in the recharge pump, filter unit includes totally closed box and sets up the multilayer cotton layer in the box, is provided with the sand stone layer between the adjacent cotton layer, be provided with the cistern in, the play water end of booster pump is connected with the box, the box body is connected with a water outlet pipe for filtered water to pass through, and the water outlet pipe is communicated with the sterilization unit.

By the technical scheme, when groundwater is recharged, water in the pumping well is pumped into the reservoir, then the water in the reservoir is pumped into the filtering unit by the booster pump for filtering, so that the impurities in the water reservoir are filtered, and then the filtered water is led to the sterilization unit, killing microorganisms and the like in water, avoiding the occurrence of the condition that the water injected into underground water contains more harmful microorganisms to a certain extent, then leading the sterilized water to an active carbon adsorption filtering unit for further filtering, leading the water to be cleaner, then the filtered water is recycled to a recharge tank for standby, finally the water in the recharge tank is filled into a recharge well through a recharge pump, in the process, the quality of the water poured into the ground can be guaranteed, and the condition that the water poured into the ground influences the quality of the ground water is avoided to a certain extent.

preferably, the box is internally provided with a frame body used for fixing the cotton cloth layer and the gravel layer in a sliding manner, the box is provided with a replacement opening for sliding out the frame body away from the ground end, and the replacement opening is provided with a sealing cover used for sealing the replacement opening.

Through the technical scheme, because filter unit in use can filter out a large amount of impurity, consequently, in order to avoid filter unit jam, need in time clear up filter unit, for convenient clearance, the slip is provided with the support body in the box, with the support body from changing mouthful roll-off when needing clearance cotton layer and grit layer, then change new cotton layer and grit layer, can be so that filter unit's filter effect remains the within range of regulation throughout through changing cotton layer and grit layer on time, can wash used repeatedly with the cotton layer after changing simultaneously with the grit layer, moreover, the steam generator is simple in structure, and it is convenient to change, simultaneously because it is located box back of the body ground face side to change the mouth, and can seal up through sealed lid after changing, consequently can effectively prevent water from changing the mouth leakage when filtering.

Preferably, the sterilization unit comprises a sealed tank made of stainless steel, and a plurality of ultraviolet lamp tubes are uniformly distributed in the sealed tank.

Through the technical scheme, the ultraviolet rays emitted by the ultraviolet lamp tube can destroy the molecular structure of DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) in cells of a microorganism organism, so that the death of growing cells and/or regenerative cells is caused, the effects of sterilization and disinfection are achieved, and the content of microorganisms in water is reduced to the maximum extent.

Preferably, the activated carbon adsorption filtration unit comprises a filtration pipe and a multi-layer activated carbon filtration unit detachably arranged in the filtration pipe.

Through above-mentioned technical scheme, in order to make the filter effect better, need in time change active carbon filter unit, through can dismantling the setting with active carbon filter unit in the filter tube, can conveniently change active carbon filter unit.

Preferably, the activated carbon filtering unit comprises a frame with openings at two ends and net covers arranged at the openings at two ends of the frame, activated carbon is filled between the net covers, an insertion opening for inserting the frame is arranged on the filtering pipe, and sealing rubber for preventing water from leaking between the frame and the insertion opening is arranged between the insertion opening and the frame.

Through the technical scheme, the mesh enclosures are arranged at the openings at the two ends of the frame, the area for placing the activated carbon can be formed between the two mesh enclosures, water can pass through the mesh enclosures during use, and due to the existence of the mesh enclosures, the activated carbon is not easy to disperse by water in work, so that the filtering effect of the activated carbon is good, meanwhile, the frame can be conveniently replaced through the insertion hole, and during replacement, the frame is taken out from the insertion hole.

Preferably, a magnetized water treatment device is arranged between the activated carbon adsorption filtering unit and the sterilization unit.

By the technical scheme, the magnetized water processor utilizes the ultrahigh strong magnetic field generated by the high-strength magnetic material to change the physical structure of mineral substances in water under the condition of not changing the original chemical components of the water. The original associated chain-like macromolecules are broken into single micromolecules, and the dipole moment of water molecules is deflected. The positive and negative ions (scale molecules) of dissolved salts in water are surrounded by a single water molecule, so that the acicular crystals of the scale substances such as calcium, magnesium and the like in water are changed into granular crystals, the characteristics of mutual adhesion and accumulation are damaged, hard scale is not formed on a heated surface or a management wall, the granular crystals are discharged along with a sewage discharge hole, meanwhile, the dipole moment of the water molecule is increased, the attraction force between the water molecule and the positive and negative ions of the salts is increased, the original old scale on a heated furnace wall and a heated pipe wall is gradually cracked, loosened and automatically fallen off, the treatment effect is achieved, the strong magnetic neodymium iron boron magnetic field generates turbulence in water waves, the ion channel of a cell membrane is damaged, the internal control current adaptive to cells and the environmental conditions required by survival are changed, and the cells lose the survival ability and die. Meanwhile, the water molecules after magnetic excitation can surround and seal oxygen dissolved in water, so that the source of oxygen required by the microorganisms for carrying out life reaction is damaged, thereby achieving good sterilization and algae removal effects and preventing the generation of biological sludge.

Preferably, a polytetrafluoroethylene film is laid on the inner wall of the recharging pool, and a cover body covers the recharging pool.

Through above-mentioned technical scheme, because the water in the recharge pond is the water after handling, consequently, in order to avoid water in the recharge pond to be polluted, it is equipped with the polytetrafluoroethylene film to lay in the recovery pond, the polytetrafluoroethylene film can be ageing-resistant, expose for a long time in the atmosphere, surface and performance remain unchanged, simultaneously be difficult for burning, be insoluble in strong acid, alkali and organic solvent, and it is neutral, consequently difficult quilt when handling water and polytetrafluoroethylene film contact is polluted, can guarantee that the quality of water of pouring into the recharge well is higher, effectively avoid the quality of water of groundwater to receive the condition emergence of polluting, can effectively avoid external impurity to fall into the recharge pond through the lid.

Preferably, the water outlet pipe is provided with a sampling valve for sampling water passing through the water outlet pipe.

Through above-mentioned technical scheme, whether the filter effect in order to look over filter unit in time is good is provided with the sample valve on the outlet pipe, can regularly take a sample through the sample valve, looks over the impurity content of the aquatic after the filtration, confirms whether should change cotton layer and gravel layer.

In summary, compared with the prior art, the beneficial effects of the invention are as follows:

(1) The water quality of the water injected into the underground water is guaranteed, and the water injected into the underground water is prevented from influencing the water quality of the underground water;

(2) The filtering unit and the active carbon filtering unit can be replaced in the process of treating water, so that the water treatment effect is higher;

(3) Meanwhile, as the water is filtered after being pumped out from the pumping well, impurities in the water are less when the water is treated subsequently, more impurities are not easy to attach to subsequent water treatment equipment, the water treatment effect is good, and the water quality can be guaranteed.

drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is a schematic structural view of a filter unit according to an embodiment;

FIG. 3 is a schematic structural view of an activated carbon adsorption filtration unit of an embodiment;

FIG. 4 is a schematic structural view of the case;

FIG. 5 is a schematic structural diagram of a frame body;

Fig. 6 is a schematic diagram of an embodiment.

Reference numerals: 1. pumping a water well; 2. recharging the well; 3. a processing system; 311. a reservoir; 312. a filtration unit; 3121. a box body; 3122. a cotton cloth layer; 3123. a sandstone layer; 313. a sterilization unit; 3131. sealing the tank body; 3132. an ultraviolet lamp tube; 314. an activated carbon adsorption filtration unit; 3141. a filter tube; 3142. an activated carbon filtration unit; 31421. a frame; 31422. a mesh enclosure; 31423. activated carbon; 31424. an insertion opening; 31425. sealing rubber; 315. recharging the pool; 4. a back-filling pump; 5. a booster pump; 6. a water outlet pipe; 7. a frame body; 8. replacing the port; 9. a sealing cover; 10. a magnetized water treatment device; 11. a polytetrafluoroethylene film; 12. a cover body; 13. a sampling valve; 14. and (5) filtering by using a filter screen.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

As shown in fig. 1 and 2, a foundation pit groundwater recharging system comprises a pumping well 1, a water reservoir 311 for storing water pumped by the pumping well 1, a filtering unit 312 for filtering water in the water reservoir 311, a sterilizing unit 313 for sterilizing water filtered by the filtering unit 312, an activated carbon adsorption filtering unit 314 for filtering sterilized water, a recharging pool 315 for storing water filtered by the activated carbon adsorption filtering unit 314, and a recharging well 2 communicated with the recharging pool 315, wherein the recharging pool 315 is provided with a recharging pump 4 for pumping water in the recharging pool 315 into the recharging well 2.

When groundwater is recharged, water in the pumping well 1 is pumped out to the water storage tank 311, then the water in the water storage tank 311 is pumped to the filtering unit 312 through the booster pump 5 to be filtered, impurities in the water storage tank 311 are filtered, then the filtered water is led to the sterilization unit 313 to kill microorganisms in the water, the situation that the water injected into the groundwater contains more harmful microorganisms is avoided to a certain extent, then the sterilized water is led to the activated carbon adsorption filtering unit 314 to be further filtered, the water is cleaner, the filtered water is recycled to the recharging tank 315 to be reserved, and finally the water in the recharging tank 315 is recharged into the recharging well 2 through the recharging pump 4.

as shown in fig. 1, because the water in the recharge tank 315 is treated water, in order to prevent the water from being polluted in the recharge tank 315, a polytetrafluoroethylene film 11 is laid on the inner wall of the recharge tank 315, and a cover body 12 is covered on the recharge tank 315, wherein the polytetrafluoroethylene film 11 can resist atmospheric aging and is exposed in the atmosphere for a long time, the surface and the performance of the polytetrafluoroethylene film 11 are kept unchanged, and the polytetrafluoroethylene film is not easy to burn, is insoluble in strong acid, strong base and organic solvent, and is neutral, so that the treated water is not easy to be polluted when contacting with the polytetrafluoroethylene film 11, the water quality of the water injected into the recharge well 2 can be ensured to be high, the water quality of underground water is effectively prevented from being polluted, and external impurities can be effectively prevented from falling into the recharge tank 315 through the cover body 12.

As shown in fig. 2 and 4, the filtering unit 312 includes a totally-enclosed case 3121 and multiple cotton layers 3122 disposed in the case 3121, a sand layer 3123 is disposed between adjacent cotton layers 3122, a frame body 7 is slidably disposed in the case 3121, a replacement opening 8 for sliding out the frame body 7 is disposed at a position deviating from the ground end of the case 3121, and a sealing cover 9 for sealing the replacement opening 8 is disposed at the replacement opening 8.

The two ends of the frame body 7 are open, the two ends of the opening of the frame body 7 are fixed with the filter screens 14, the cotton cloth layer 3122 and the sandstone layer 3123 are positioned between the two filter screens 14, when the cotton cloth layer 3122 and the sandstone layer 3123 are loaded between the two filter screens 14, one of the filter screens 14 is firstly removed, then the cotton cloth layer 3122 is laid in the frame body 7, and the cotton cloth layer 3122 is attached to the filter screen 14 which is not removed, then the sandstone layer 3123 is laid on the cotton cloth layer 3122, then the other cotton cloth layer 3122 is laid on the laid sandstone layer 3123, the multiple layers are laid in such a way, then the removed filter screens 14 are installed, and the cotton cloth layer 3122 is tightly abutted to the sandstone layer 3123 and the two filter screens 14 after installation.

Wherein, be provided with booster pump 5 in the cistern 311, the play water end of booster pump 5 is connected with box 3121, is connected with the outlet pipe 6 that supplies the water after the filtration to pass through on the box 3121, and the water that booster pump 5 took gets into box 3121, then leads to filter screen 14 and cotton layer 3122 and grit layer 3123, afterwards goes out from outlet pipe 6 again, gets into the unit 313 of disinfecting at last and disinfects.

As shown in fig. 1 and 2, in order to check whether the filtering effect of the filtering unit 312 is good or not in time, the water outlet pipe 6 is provided with the sampling valve 13, so that the water can be sampled by the sampling valve 13 regularly, and the impurity content in the filtered water can be checked to determine whether the cotton cloth layer 3122 and the sand layer 3123 should be replaced.

Need clear up the cotton layer 3122 with the grit layer 3123 the time with support body 7 from changing mouthful 8 roll-off, then dismantle filter screen 14, and change new cotton layer 3122 and grit layer 3123, install filter screen 14 after having changed new cotton layer 3122 and grit layer 3123, then will change the cotton layer 3122 and insert to change mouthful 8 with the support body 7 of grit layer 3123, can make the filter effect of filter unit 312 remain throughout in the specified scope through changing cotton layer 3122 and grit layer 3123 on time, can wash used repeatedly with cotton layer 3122 and grit layer 3123 after changing simultaneously, because change mouthful 8 and be located the box 3121 ground back face side, and can seal change mouthful 8 through sealed lid 9 after changing, consequently, can effectively prevent water from changing mouthful 8 when filtering and leaking.

As shown in fig. 1, the sterilization unit 313 includes a sealed tank 3131 made of stainless steel, a plurality of ultraviolet lamps 3132 are uniformly distributed in the sealed tank 3131, and ultraviolet rays emitted by the ultraviolet lamps 3132 can destroy molecular structures of DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) in cells of a microorganism organism, so that growth cell death and/or regeneration cell death are/is caused, thereby achieving the sterilization and disinfection effect and reducing the content of microorganisms in water to the maximum extent.

as shown in fig. 3 and 5, the activated carbon adsorption filter unit 314 includes a filter pipe 3141 and a multi-layer activated carbon filter unit 3142 detachably disposed in the filter pipe 3141, the activated carbon filter unit 3142 includes a frame 31421 with openings at both ends and net covers 31422 disposed at openings at both ends of the frame 31421, activated carbon 31423 is filled between the net covers 31422, an insertion port 31424 for inserting the frame 31421 is disposed on the filter pipe 3141, and a sealing rubber 31425 for preventing water from leaking between the frame 31421 and the insertion port 31424 is disposed between the insertion port 31424 and the frame 31421.

The mesh enclosures 31422 are arranged at the openings at the two ends of the frame 31421, so that an area for placing the activated carbon 31423 can be formed between the two mesh enclosures 31422, the mesh enclosures 31422 can be used for water to pass through, the activated carbon 31423 is not easily dispersed by water in work due to the mesh enclosures 31422, the filtering effect of the activated carbon 31423 is good, meanwhile, the frame 31421 can be conveniently replaced through the insertion opening 31424, the frame 31421 can be drawn out from the insertion opening 31424 in replacement, and the sealing rubber 31425 is arranged between the insertion opening 31424 and the frame 31421, so that water is not easily leaked through the insertion opening 31424 in filtering.

As shown in fig. 6, the water magnetizing treatment apparatus 10 is provided between the activated carbon adsorption filtration unit 314 and the sterilization unit 313, and the water magnetizing treatment apparatus 10 changes the physical structure of minerals in water by using an ultra-high magnetic field generated by a high-intensity magnetic material without changing the original chemical composition of water. The original associated chain-like macromolecules are broken into single micromolecules, and the dipole moment of water molecules is deflected. The positive and negative ions (scale molecules) of dissolved salts in water are surrounded by a single water molecule, so that the acicular crystals of the scale substances such as calcium, magnesium and the like in water are changed into granular crystals, the characteristics of mutual adhesion and accumulation are damaged, hard scale is not formed on a heated surface or a management wall, the granular crystals are discharged along with a sewage discharge hole, meanwhile, the dipole moment of the water molecule is increased, the attraction force between the water molecule and the positive and negative ions of the salts is increased, the original old scale on a heated furnace wall and a heated pipe wall is gradually cracked, loosened and automatically fallen off, the treatment effect is achieved, the strong magnetic neodymium iron boron magnetic field generates turbulence in water waves, the ion channel of a cell membrane is damaged, the internal control current adaptive to cells and the environmental conditions required by survival are changed, and the cells lose the survival ability and die. Meanwhile, the water molecules after magnetic excitation can surround and seal oxygen dissolved in water, so that the source of oxygen required by the microorganisms for carrying out life reaction is damaged, thereby achieving good sterilization and algae removal effects and preventing the generation of biological sludge.

As shown in figure 6, when in use, water pumped from the pumping well 1 is treated by the treatment system 3 and then stored into the recharging pool 315, and the recharging pump 4 is recharged into the recharging well 2, so that the recharging pump 4 and the recharging well 2 can be hermetically connected, and the recharging well 2 can be effectively prevented from being blocked in use by the impulsive force of the recharging pump 4.

The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.

Claims

1. the utility model provides a foundation ditch groundwater recharge system, includes pumped well (1), recharge well (2) and sets up between pumped well (1) and recharge well (2) and be used for carrying out processing system (3) that handle the water that pumped well (1) was taken out, its characterized in that: the treatment system (3) comprises a reservoir (311) which is used for storing water pumped by the pumping well (1), a filtering unit (312) which is used for filtering water in the reservoir (311), a sterilizing unit (313) which is used for sterilizing the water filtered by the filtering unit (312), an activated carbon adsorption filtering unit (314) which is used for filtering the sterilized water and a recharging pool (315) which is used for storing the water filtered by the activated carbon adsorption filtering unit (314), wherein the recharging pool (315) is internally provided with a recharging pump (4) which is used for pumping the water in the recharging pool (315) into the recharging well (2), the filtering unit (312) comprises a fully-closed box body (3121) and a plurality of cotton cloth layers (3122) which are arranged in the box body (3121), a sand stone layer (3123) is arranged between the adjacent cotton cloth layers (3122), and a booster pump (5) is arranged in the reservoir (311), the water outlet end of the booster pump (5) is connected with the tank body (3121), the tank body (3121) is connected with a water outlet pipe (6) for filtered water to pass through, the water outlet pipe (6) is communicated with a sterilization unit (313), the sterilization unit (313) comprises a sealed tank body (3131) made of stainless steel materials, a plurality of ultraviolet lamp tubes (3132) are uniformly distributed in the sealed tank body (3131), the active carbon filtering unit (3142) comprises a frame (31421) with openings at two ends and net covers (31422) arranged at the openings at two ends of the frame (31421), active carbon (31423) is filled between the net covers (31422), the filter pipe (3141) is provided with an insertion opening (31424) for inserting a frame (31421), a sealing rubber (31425) for preventing water from leaking between the frame (31421) and the insertion opening (31424) is provided between the insertion opening (31424) and the frame (31421).

2. A foundation pit groundwater recharge system as claimed in claim 1, wherein: the utility model discloses a storage box, including box (3121), box (3121) are provided with in the sliding support body (7) that are used for fixed cotton layer (3122) and grit layer (3123), box (3121) deviates from the ground end and is provided with the change mouth (8) that supply support body (7) roll-off, change mouth (8) department and be provided with and be used for changing sealed lid (9) that mouth (8) are sealed.

3. A foundation pit groundwater recharge system as claimed in claim 1, wherein: the activated carbon adsorption filtration unit (314) comprises a filtration pipe (3141) and a multi-layer activated carbon filtration unit (3142) which is detachably arranged in the filtration pipe (3141).

4. A foundation pit groundwater recharge system as claimed in claim 1, wherein: a magnetized water processor (10) is arranged between the active carbon adsorption filtering unit (314) and the sterilization unit (313).

5. A foundation pit groundwater recharge system as claimed in claim 1, wherein: the inner wall of the recharging pool (315) is paved with a polytetrafluoroethylene film (11), and the recharging pool (315) is covered with a cover body (12).

6. A foundation pit groundwater recharge system as claimed in claim 1, wherein: and the water outlet pipe (6) is provided with a sampling valve (13) for sampling water passing through the water outlet pipe (6).