Large garden realizes rainwater comprehensive utilization's internal circulation system and its construction method

Abstract

The present application relates to the technical field of garden rainwater utilization, in particular to an internal circulation system for realizing comprehensive utilization of rainwater in large gardens and a construction method thereof, comprising an underground water storage device, an aboveground water storage device and a domestic water purification device, wherein the domestic water purification device is connected to the inside of the underground water storage device and used for treating the water collected in the underground water storage device and then delivering the treated water to a user water end in the garden through a water pipeline, and the bottom of the aboveground water storage device is connected to the underground water storage device. The system is installed in large gardens and can be used in cooperation with multiple same systems arranged at intervals. The system can collect rainwater and domestic wastewater, filter and purify the collected rainwater, store the purified rainwater, and use the stored rainwater for irrigation or supply of domestic water in the garden when needed, thereby effectively improving the recycling rate of rainwater and wastewater resources.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of garden rainwater utilization, in particular to a new type of circulating system capable of realizing multi-stage comprehensive utilization of rainwater in a large garden, in particular to an internal circulating system for realizing comprehensive utilization of rainwater in a large garden and a construction method thereof. BACKGROUND

[0002] The area of a large garden is relatively large, and there are a large number of trees and vegetation inside the garden, so the water consumption of the garden is large. At present, the garden is generally connected with municipal water supply by building a water supply pipeline inside the garden, and in some areas, the internal supply is generally realized by drilling a well.

[0003] In some gardens, in order to save water resources, a water pool or equipment for collecting and reusing rainwater is configured in many gardens. For example, a garden rainwater collecting device is disclosed in a patent application No. CN201720337424.6, which mainly comprises a sleeve surrounding the main stem of a garden tree, a folding umbrella-shaped collector installed on the sleeve, and a water storage tank located below the folding umbrella-shaped collector and used for storing rainwater collected by the folding umbrella-shaped collector. The folding umbrella-shaped collector comprises a sleeve ring slidingly sleeved on the circumferential surface of the sleeve, and an umbrella-shaped part connected with the sleeve ring through a connecting rod, and the two ends of the connecting rod are hingedly connected with the sleeve ring and the umbrella-shaped part, respectively. The bottom of the water storage tank is inserted into the soil around the main stem of the garden tree through a support pipe.

[0004] As can be seen from the description of the prior art patent in the above example, the rainwater collecting device described above is mainly installed on a single tree trunk for use, and it can only be used for rainwater irrigation for the corresponding tree. The rainwater collecting capacity of this rainwater collecting device is limited, and it needs to be configured separately on each tree, so it is difficult to use and install in a large garden, and it is difficult to achieve the purpose of considering the entire garden area.

[0005] In addition, a garden slope rainwater collecting device is also disclosed in a patent application No. CN202020105884.8, which mainly comprises a water tank placed on the side of a garden slope and a rainwater filtering device placed at the bottom end of the garden slope. The rainwater filtering device comprises a load-bearing groove installed at the bottom end of the garden slope, and a garbage filtering groove and a sedimentation tank are sequentially installed in the load-bearing groove from top to bottom. A water leakage hole one is opened at the bottom end of the load-bearing groove, and a water collecting pipe is connected below the water leakage hole one. The water collecting pipe is connected to the water tank through a water pipe line.

[0006] From the above-mentioned garden slope rainwater collection device recorded in the content can be seen, the above patent is mainly using water tank to collect the rainwater flowing down the slope, and pretreatment before collection, in order to achieve the purpose of rainwater utilization, but this collection method is also more traditional, can not effectively improve the efficiency and effect of rainwater collection and treatment, the range of rainwater collection and reuse and the ability of supply area is limited.

[0007] Therefore, the present application proposes a new type of circulating system which can realize multi-stage comprehensive utilization of rainwater in large gardens, so as to better solve the problems in the prior art. SUMMARY

[0008] To solve the above technical problems, the technical scheme adopted by the present application is: an internal circulating system for realizing comprehensive utilization of rainwater in a large garden, which is installed inside the large garden for use, and comprises an underground water storage device, an aboveground water storage device, and a domestic water purification device, wherein the domestic water purification device is connected to the inside of the underground water storage device and is used to treat the water collected in the underground water storage device and then deliver the treated water to a user water end in the garden area through a water pipeline, the bottom of the aboveground water storage device is connected to the underground water storage device, and a water treatment subassembly is installed on the water pipeline between the domestic water purification device and the user water end in the garden area.

[0009] In any of the above-mentioned schemes, preferably, the underground water storage device comprises a plurality of vertically arranged water well units, and annular well cavities are formed between the vertical wells on the outside of each water well unit and the drill hole rock wall, and the annular well cavities are filled with annular reinforced anti-seepage pouring protective layers.

[0010] Preferably in any of the above solutions, the vertical water well unit comprises a ring-shaped corrosion-proof well tube, the bottom of the ring-shaped corrosion-proof well tube is sealed by a bottom sealing end head, the inner tube bottom of the ring-shaped corrosion-proof well tube is in communication with the ring-shaped cavity of the ring-shaped corrosion-proof well tube, the outer tube of the ring-shaped corrosion-proof well tube is coaxial with the inner tube and is fixedly arranged, the ring-shaped corrosion-proof well tube is fitted and installed in the inner cavity of the ring-shaped reinforced anti-seepage pouring sheath at the corresponding position, the central cavity of the ring-shaped corrosion-proof well tube is a central water inlet cavity, the ring-shaped cavity of the ring-shaped corrosion-proof well tube is a ring-shaped water outlet cavity, a lifting submersible pump is installed below the water surface of the ring-shaped water outlet cavity, the lifting submersible pump lifts the water source in the ring-shaped water outlet cavity upward and out through the lift water pipe to the upper part of the corresponding vertical well, a ring-shaped bracket is fixedly installed at the upper part of the central water inlet cavity, the outer side walls of the ring-shaped bracket are fixed on the inner ring side walls of the ring-shaped corrosion-proof well tube by anchor members, a terminal purification treatment component is installed inside the central water inlet cavity above the ring-shaped bracket, the terminal purification treatment component is used for terminal purification treatment of the pre-treated rainwater and wastewater entering the inside of the ring-shaped corrosion-proof well tube.

[0011] A central sealing cover is sealingly installed at the top of the central cavity of the ring-shaped corrosion-proof well tube, a underground water inlet main pipe is movably and sealingly penetrated through the central position of the central sealing cover, the lower end of the underground water inlet main pipe is connected with the water inlet end of the terminal purification treatment component, the upper end of the underground water inlet main pipe extends into the above-ground water storage device and collects the rainwater in the above-ground water storage device into the underground water storage device, a power submersible pump is installed on the underground water inlet main pipe.

[0012] A ring-shaped sealing well cover is sealingly installed at the wellhead of the vertical well of the ring-shaped reinforced anti-seepage pouring sheath, the ring-shaped sealing well cover is used for sealing the wellhead of the vertical well, the upper end of the lift water pipe is movably and sealingly penetrated through the ring-shaped sealing well cover and is connected with the water inlet end of the domestic water purification device on the park ground.

[0013] Preferably in any of the above solutions, the terminal purification treatment component comprises a purification outer steel tube installed in the central water inlet cavity, a purification inner steel tube is coaxially arranged in the inner cavity of the purification outer steel tube, the top and bottom of the ring-shaped purification cavity formed by the purification inner steel tube and the purification outer steel tube are respectively provided with a sealing upper cover and a sealing lower cover, the ring-shaped purification cavity is divided into a plurality of installation sub-cavities by a partition plate, a water treatment membrane group is installed in each of the installation sub-cavities, the top water inlet pipe of each water treatment membrane group is movably and sealingly penetrated through the sealing upper cover and is connected with the underground water inlet main pipe above the upper part thereof through a connecting pipeline, the bottom water outlet pipe of each water treatment membrane group is movably and sealingly penetrated through the sealing lower cover.

[0014] In any of the above solutions, preferably, a self-cleaning mechanism is installed in the inner cavity of the purification inner steel cylinder, which includes an annular collection box installed in the inner cavity of the purification inner steel cylinder, the outer sidewall of the annular collection box is fixed on the inner cavity sidewall of the purification inner steel cylinder by external threads, a sewage introduction elbow is arranged at the top of the annular collection box corresponding to the top of each water treatment membrane group for connecting with the sewage pipe orifice of the water treatment membrane group, a backflush pipe with a control valve is installed at the upper part of the lift water pipe of the corresponding vertical water well unit, the backflush pipe is movable and sealed to pass through a through hole in the annular corrosion-proof well cylinder and then passes out from the center through cavity of the annular collection box from top to bottom, a flushing jet branch pipe is connected to the end of each backflush pipe, and the end of each flushing jet branch pipe is connected to the lower backflush pipe inlet of the water treatment membrane group at the corresponding position, a backflush one-way valve and a sewage one-way valve are installed on each lower backflush pipe inlet and sewage pipe orifice.

[0015] In any of the above solutions, preferably, an anti-corrosion coating is sprayed on each sidewall of the annular corrosion-proof well cylinder.

[0016] In any of the above solutions, preferably, the above-ground water storage device includes a dosing collection tank, a dosing device is installed on the dosing collection tank, the dosing device is controlled to add water treatment chemicals into the dosing collection tank to achieve water treatment, a water storage tank is arranged on one side of the dosing collection tank, a dustproof sealing cover is arranged on the top of the water storage tank, a rainwater filtering assembly is installed on the top of the dosing collection tank, the dosing collection tank and the water storage tank are connected by a flow diversion pipeline, a constant pressure start flow diversion one-way valve is installed on the flow diversion pipeline, the constant pressure start flow diversion one-way valve is only connected from the dosing collection tank to the water storage tank, low and high water level monitoring elements are arranged in the water storage tank, and the outlet end of the water storage tank is connected to the corresponding underground water inlet main pipe of each vertical water well unit by a pipeline.

[0017] In any of the above solutions, preferably, the rainwater filtering assembly includes a positioning frame fixedly installed on the upper part of the dosing collection tank, a first filter screen, a second filter screen and a third filter screen are sequentially installed in the positioning frame from top to bottom, and the mesh sizes of the first filter screen, the second filter screen and the third filter screen decrease in sequence.

[0018] Preferably, in any of the above solutions, a chute is installed on both sides of the top of the medicated collection pool, an induction blocking upper cover is arranged above the medicated collection pool, the induction blocking upper cover is installed in the corresponding chute through the cooperation of the slide rails at the bottom, an induction starting electric cylinder is fixedly installed on the outer wall of the medicated collection pool, the end of the piston rod of the induction starting electric cylinder is connected to the connecting seat at the bottom of the outer end of the induction blocking upper cover, a rainwater inductor is fixedly installed on the top of the induction blocking upper cover, the rainwater inductor and the induction starting electric cylinder are powered by the solar cell module on the top of the induction blocking upper cover, signal connection is realized between the rainwater inductor and the induction starting electric cylinder, when the rainwater inductor senses rainwater, feedback is given to the controller on the induction starting electric cylinder, the piston rod of the induction starting electric cylinder is driven to extend outward, the induction blocking upper cover is driven to move outward, and the medicated collection pool is opened, when rainwater is not sensed for a long time, the induction blocking upper cover is reset and is in a closed state, and the induction blocking upper cover is used for dustproof protection of the medicated collection pool.

[0019] Preferably, in any of the above solutions, the domestic water purification device comprises a plurality of water purification membrane units, the water purification membrane units are arranged side by side, the inlet end and the outlet end of each water purification membrane unit are connected with a purification inlet branch and a purification outlet branch respectively, each purification inlet branch is connected with the outlet end of the lift water pipe through a water inlet multi-way conversion valve, and each purification outlet branch is connected with the water pipe in communication through a water outlet multi-way conversion valve. A branch stop valve is installed on each purification inlet branch and each purification outlet branch.

[0020] In the present application, the plurality of water purification membrane units on the domestic water purification device can realize the following effects: first, the parallel connection of multiple units can effectively realize the purification water volume in unit time; second, the water purification membrane units on each branch can be closed individually, and each branch does not affect the other branches, so that when the water purification membrane units on one branch fail or need to be replaced, the normal operation of the other branches will not be affected; third, each water purification membrane unit can be selected to be started synchronously, or only a part of the water purification membrane units can be started, and the remaining part of the water purification membrane units can be kept in standby state, so that each water purification membrane unit can serve as a backup unit, thereby ensuring that the domestic water purification device can normally purify rainwater in a continuous and uninterrupted state.

[0021] Preferably in any of the above schemes, the water treatment subassembly comprises a fixedly arranged cylindrical magnet, a solar heated water pipeline is spirally wound on the cylindrical magnet, the inlet end of the solar heated water pipeline is connected with the water using pipeline, the outlet end of the solar heated water pipeline is connected with the user water end in the park through a pipeline, and the bottom of the two ends of the cylindrical magnet is fixedly arranged through a mounting seat.

[0022] The water treatment subassembly magnetizes and preheats the purified water after upstream purification, the spiral winding of the solar heated water pipeline and the spiral flow of the internal water flow effectively improve the magnetization effect of the water flow, in addition, the cylindrical magnet not only has a magnetization effect but also has an auxiliary heat conduction effect, the selected cylindrical magnet is black, which is heated up quickly and has a high temperature under sunlight, the solar heated water pipeline spirally wound thereon can not only absorb energy from sunlight but also absorb heat conducted by the cylindrical magnet, so that the internal water flow of the solar heated water pipeline can be quickly heated and preheated.

[0023] Compared with the prior art, the present application has the following advantages:

[0024] 1. The system is installed in a large park and can be used in cooperation with multiple same systems arranged at intervals, the system can realize the centralized collection of rainwater and domestic wastewater, the collected rainwater can be filtered, purified and stored, and can be used for irrigation or domestic water supply in the park when needed, effectively improving the recycling rate of rainwater and wastewater resources.

[0025] 2. The underground water storage device in combination with the aboveground water storage device can better improve the expansion of the water storage capacity of rainwater and wastewater, and the underground storage of a large amount of initially purified water can reduce the evaporation of the water source, when water is needed, the rainwater and wastewater stored in the aboveground water storage device can be directly used for irrigating trees and vegetation in the nearby park, and when domestic water is needed, the water can be further purified by the domestic water purification device in combination with the water treatment subassembly, so that the water source can meet the standard of domestic water (non-drinking water) for living and working, effectively realizing comprehensive utilization of resources.

[0026] 3、The system exists rainwater ground three level filtration + neutralization purification, still be equipped with the underground water storage end purification filter simultaneously, can guarantee the relatively clean of water source stored in the ground, reduce the probability of water quality deterioration, prolong the storage period; simultaneously, the application also specially sets up the domestic water treatment unit of the user water end in the park, utilizes the domestic water purification device, water treatment subassembly can realize the further water quality optimization, magnetization and preheating treatment of the underground storage water source, effectively guarantees the water source supply demand of the user water end in the park. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the specific embodiments or prior art description will be briefly introduced below. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, various elements or components are not necessarily drawn according to the actual scale.

[0028] Figure 1 It is the overall layout schematic diagram of the present application.

[0029] Figure 2 It is the structure schematic diagram of the present application.

[0030] Figure 3 It is the internal structure schematic diagram of the vertical water well unit of the present application.

[0031] Figure 4 It is the enlarged structure schematic diagram of the end purification treatment component of the present application.

[0032] Figure 5 It is the installation position partial top view structure schematic diagram of the water treatment membrane group of the present application.

[0033] Figure 6 It is the enlarged structure schematic diagram of the ground water storage device of the present application.

[0034] Figure 7 It is the enlarged structure schematic diagram of the domestic water purification device of the present application.

[0035] Figure 8 It is the enlarged structure schematic diagram of the water treatment subassembly of the present application.

[0036] In the drawings, A, end purification treatment component; B, underground water storage device; C, rainwater filtration assembly;

[0037] 1, life water purification device; 2, water pipeline; 3, user water end; 4, water treatment subassembly; 5, vertical water well unit; 501, annular corrosion-proof well cylinder; 5011, outer cylinder; 5012, inner cylinder; 502, well bottom blocking end; 503, central water inlet cavity; 504, annular water outlet cavity; 505, lifting submersible pump; 506, lift water pipe; 507, annular bracket; 508, central sealing cover; 509, underground water inlet main pipe; 510, power submersible pump; 511, purification outer steel cylinder; 512, purification inner steel cylinder; 513, annular purification cavity; 514, blocking upper cover; 515, blocking lower cover; 516, partition plate; 517, installation subcavity; 518, water treatment membrane group; 519, top water inlet pipe; 520, lower backflush pipe inlet; 521, bottom water outlet pipe; 522, annular collection tank; 523, blowdown pipe; 524, blowdown elbow; 525, backflush pipe; 526, central through cavity; 527, flushing jet branch pipe; 528, backflush one-way valve; 529, blowdown one-way valve; 6, drilling rock wall; 7, vertical well; 8, annular reinforced anti-seepage pouring protective layer; 9, aboveground water storage device; 901, dosing collection tank; 902, doser; 903, water storage tank; 904, dustproof sealing cover; 905, flow diversion pipeline; 906, flow diversion solenoid valve; 907, constant pressure start flow diversion one-way valve; 10, positioning frame; 11, first filter screen; 12, second filter screen; 13, third filter screen; 14, chute; 15, induction shielding upper cover; 16, slide rail; 17, induction start electric cylinder; 18, connecting seat; 19, rainwater inductor; 20, water purification membrane unit; 21, purification inlet branch; 22, purification outlet branch; 23, water inlet multi-way conversion valve; 24, water outlet multi-way conversion valve; 25, branch stop valve; 26, cylindrical magnet; 27, solar heating water pipeline. DETAILED DESCRIPTION

[0038] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application. The specific structure of the present application is shown in Figures 1-8

[0039] ​Embodiment 1: Large garden realizes the internal circulation system of rainwater comprehensive utilization, the internal circulation system is installed inside large garden uses, the internal circulation system includes underground water storage device B, ground water storage device 9, domestic water purification device 1, the domestic water purification device 1 is connected with the inside of underground water storage device B and is used to handle the water source collected in the inside of underground water storage device again through water pipeline 2 is delivered to the user water end 3 in garden area, the bottom of ground water storage device 9 is connected with underground water storage device respectively, installs a water treatment subassembly 4 on the water pipeline 2 between the domestic water purification device 1 and the user water end 3 in garden area.This system is mainly used to realize the recycling of rainwater and waste water in garden area and utilization, when recycling, can use underground water storage device, ground water storage device 9 to realize the large capacity prestorage of preprocessed water source, and the water source in ground water storage device 9 can be used for temporary irrigation of trees and vegetation around the garden area;The water source stored in the ground will be purified and filtered by the end purification treatment component A before entering the underground water storage device, which can ensure that the water quality in the underground water storage device is better than that in the ground water storage device 9, and when the user water end 3 in the garden area needs domestic water, the underground water source can be further purified, magnetized and preheated by using the domestic water purification device 1 and the water treatment subassembly 4, so as to ensure the quality of domestic water of the user water end 3 in the garden area.

[0040] In any of the above schemes, preferably, the underground water storage device includes a plurality of vertically arranged water well units 5, the lower ends of each of the water well units 5 are connected by branches, and an annular well cavity is formed between the vertical well 7 outside each of the water well units 5 and the drilling rock wall 6, and the annular well cavity is filled with an annular reinforced anti-seepage pouring protective layer 8. The underground water storage device realizes the prestorage of water source through a plurality of vertical water well units 5, which can effectively expand the storage capacity of water source and ensure the balanced outward delivery of water in each vertical water well unit 5 when upward pumping. In order to prevent water source from seeping outward, the annular reinforced anti-seepage pouring protective layer 8 is provided, which can stabilize and reinforce the drilling rock wall 6 and fix and reinforce the vertical water well unit 5.

[0041] In any of the above schemes, preferably, the vertical water well unit 5 comprises a ring-shaped corrosion-proof well tube 501, the bottom of which is sealed and blocked by a well bottom blocking end head 502, and the inner tube bottom of the ring-shaped corrosion-proof well tube 501 is in communication with the annular cavity of the ring-shaped corrosion-proof well tube 501, the outer tube and the inner tube of the ring-shaped corrosion-proof well tube 501 are coaxially arranged and fixed, the ring-shaped corrosion-proof well tube 501 is fitted and installed in the inner cavity of the corresponding position of the annular reinforced anti-seepage pouring sheath 8, the central cavity of the ring-shaped corrosion-proof well tube 501 is a central water inlet cavity 503, the annular cavity of the ring-shaped corrosion-proof well tube 501 is an annular water outlet cavity 504, a lifting submersible pump 505 is installed below the water surface of the annular water outlet cavity 504, the lifting submersible pump 505 lifts the water source in the annular water outlet cavity 504 upward and out through the lift water pipe 506 to the upper part of the corresponding vertical well 7, a ring-shaped bracket 507 is fixedly installed at the upper part of the central water inlet cavity 503, the outer side walls of the ring-shaped bracket 507 are fixed on the inner ring side walls of the ring-shaped corrosion-proof well tube 501 by anchor members, a central sealing cover 508 is sealingly installed at the top of the central cavity of the ring-shaped corrosion-proof well tube 501, a underground water inlet main pipe 509 is movably and sealingly passed through the central position of the central sealing cover 508, the upper end of the underground water inlet main pipe 509 extends into the above-ground water storage device 9 and collects rainwater in the above-ground water storage device 9 to the underground water storage device, and a power water pump 510 is installed on the underground water inlet main pipe 509.

[0042] A ring-shaped sealing well cover is sealingly installed at the well mouth of the vertical well 7 of the annular reinforced anti-seepage pouring sheath 8, which is used to block the well mouth of the vertical well 7, and the upper end of the lift water pipe 506 is movably and sealingly passed through the ring-shaped sealing well cover and connected with the water inlet end of the domestic water purification device 1 on the park ground.

[0043] The vertical water well unit 5 as a whole relies on the central cavity and the annular cavity of the ring-shaped corrosion-proof well tube 501 to store water source, and because the central cavity and the annular cavity are in communication with each other, the water level in the central cavity and the annular cavity is at the same height, the annular water outlet cavity 504 as a water storage space, the lifting submersible pump 505 installed therein can be started to lift the water source in the corresponding water storage space upward and output to the ground for supplying water to the user water end 3 in the park when water is needed. The ring-shaped sealing well cover and the central sealing cover 508 of the ring-shaped corrosion-proof well tube 501 achieve the purpose of upper sealing.

[0044] In any of the above schemes, preferably, the end purification treatment component A comprises a purification outer steel cylinder 511 installed in the central water inlet cavity 503, a purification inner steel cylinder 512 coaxially arranged in the inner cavity of the purification outer steel cylinder 511, the top and bottom of the annular purification cavity 513 formed by the purification inner steel cylinder 512 and the purification outer steel cylinder 511 are respectively provided with a blocking upper cover 514 and a blocking lower cover 515, the annular purification cavity 513 is divided into several installation sub-cavities 517 by a partition 516, and a water treatment membrane group 518 is installed in each installation sub-cavity 517, the top water inlet pipe 519 of each water treatment membrane group 518 is movably and sealingly penetrated through the blocking upper cover 514 and connected to the upper underground water inlet main pipe 509 through a connecting pipe, and the bottom water outlet pipe 521 of each water treatment membrane group 518 is movably and sealingly penetrated through the blocking lower cover 515.

[0045] The end purification treatment component A further purifies the water source entering from the top of the central cavity, and the underground water inlet main pipe 509 carries the externally preliminarily treated water source for purification, the water source is sequentially distributed to the corresponding water treatment membrane group 518 through the corresponding top water inlet pipe 519, and the water flow is further purified after passing through the water treatment membrane group 518 under the action of the pumping pressure on the pipe, so as to further improve the water quality of the water source.

[0046] In any of the above solutions, preferably, a self-cleaning mechanism is installed in the inner cavity of the purification inner steel cylinder 512, which includes an annular collection tank 522 installed in the inner cavity of the purification inner steel cylinder 512, the outer side wall of the annular collection tank 522 is fixed on the inner cavity side wall of the purification inner steel cylinder 512 by external thread screwing, a sewage introduction elbow 524 for connecting with the sewage outlet pipe 523 at the top of each water treatment membrane group 518 is arranged at the top of the annular collection tank 522 corresponding to each water treatment membrane group 518, a backflush pipe 525 with a control valve is installed at the upper part of the lift water pipe 506 corresponding to the vertical water well unit 5, the backflush pipe 525 is movable and sealed inwardly through a through hole on the annular corrosion-proof well cylinder 501 and then passes through the central through cavity 526 of the annular collection tank 522 from top to bottom, a flushing jet branch pipe 527 is connected at the end of each backflush pipe 525, the end of each flushing jet branch pipe 527 is connected with the lower backflush pipe inlet 520 of the water treatment membrane group 518 at the corresponding position, a backflush one-way valve 528 and a sewage one-way valve 529 are installed on each lower backflush pipe inlet 520 and sewage outlet pipe 523. A self-cleaning mechanism is also installed in the purification inner steel cylinder 512 of the end purification treatment part A, which uses water source from the lower storage space and cooperates with the lift submersible pump 505, the lift water pipe 506, and the lower backflush pipe inlet 520 to introduce part of the clean water source into the lower backflush pipe inlet 520 below each water treatment membrane group 518 through the corresponding flushing jet branch pipe 527, thereby achieving backflushing and cleaning of each water treatment membrane group 518. Through backflushing and cleaning of each water treatment membrane group 518, the service life and period of the water treatment membrane group 518 can be effectively prolonged, the frequency of disassembly and cleaning can be reduced, and the purification effect can be improved. The backflush one-way valve 528 and the sewage one-way valve 529 arranged here mainly play a role in controlling the flow direction.

[0047] In any of the above schemes, preferably, the ground water storage device 9 comprises a dosing collection tank 901, a dosing device 902 is arranged on the dosing collection tank 901, the dosing device 902 is controlled to add water treatment chemicals into the dosing collection tank 901 to treat the water, a water storage tank 903 is arranged on one side of the dosing collection tank 901, a dustproof sealing cover 904 is arranged on the top of the water storage tank 903, a rainwater filtering assembly C is arranged on the top of the dosing collection tank 901, the dosing collection tank 901 and the water storage tank 903 are connected through a diversion pipeline 905, a diversion electromagnetic valve 906 and a constant pressure starting diversion one-way valve 907 are arranged on the diversion pipeline 905, the constant pressure starting diversion one-way valve 907 is only connected to one side of the water storage tank 903 from the dosing collection tank 901, low and high water level monitoring elements are arranged in the water storage tank 903, and the outlet end of the water storage tank 903 is connected to the corresponding underground water inlet main pipe 509 of each vertical water well unit 5 through a pipeline 908. The ground water storage device 9 collects rainwater or wastewater in the park in the dosing collection tank 901, the water in the dosing collection tank 901 is filtered by the rainwater filtering assembly C in three stages to filter out impurities, particles, leaves and grass, the dosing device 902 is used to add appropriate chemicals into the water in the dosing collection tank 901 for reaction, the diversion electromagnetic valve 906 is opened after the reaction, and part of the water can be used for irrigation of trees in the surrounding park.

[0048] When the water in the dosing collection tank 901 reaches a certain capacity, the constant pressure starting diversion one-way valve 907 is opened, so that the treated water in the dosing collection tank 901 flows into the water storage tank 903, the water in the water storage tank 903 can be temporarily stored, and when it is needed to be transported into the underground water storage device, the pump body of each underground water inlet main pipe 509 is started to continuously drain the water into the vertical water well unit 5 of the underground water storage device for underground storage.

[0049] In any of the above schemes, preferably, the rainwater filtering assembly C comprises a positioning frame 10 fixedly installed on the upper part of the dosing collection tank 901, a first filter screen 11, a second filter screen 12 and a third filter screen 13 are sequentially installed in the positioning frame 10 from top to bottom, and the mesh sizes of the first filter screen 11, the second filter screen 12 and the third filter screen 13 decrease in sequence. The first filter screen 11, the second filter screen 12 and the third filter screen 13 can realize three-stage filtration of impurities in rainwater and wastewater, effectively improving the filtration effect.

[0050] In any of the above schemes, preferably, the domestic water purification device 1 comprises several water purification membrane units 20, each of which is arranged in parallel, and each of the water purification membrane units 20 is connected with a purification inlet branch 21 and a purification outlet branch 22 at the inlet end and the outlet end, respectively, each of the purification inlet branches 21 is connected with the outlet end of the water lift pipe 506 through a water inlet multi-way conversion valve 23, and each of the purification outlet branches 22 is connected with the water using pipe 2 through a water outlet multi-way conversion valve 24, and a branch stop valve 25 is installed on each of the purification inlet branches 21 and the purification outlet branches 22. In the present application, the use of the multiple water purification membrane units 20 on the domestic water purification device 1 can achieve the following effects: first, the parallel connection of multiple units can effectively achieve the purification water volume per unit time; second, each branch can be closed individually, and each branch does not affect the other branches, so that when the water purification membrane unit 20 in one branch fails or needs to be replaced, the normal operation of the other branches will not be affected; third, each water purification membrane unit 20 can be selected to be opened synchronously, or only a part of the water purification membrane units 20 can be opened, and the remaining part of the water purification membrane units 20 can be kept in standby state, so that each water purification membrane unit 20 can serve as a backup unit for each other, thereby ensuring that the entire domestic water purification device 1 can purify rainwater in a continuous and uninterrupted manner.

[0051] In any of the above schemes, preferably, the water treatment subassembly 4 comprises a fixedly arranged cylindrical magnet 26, and a solar heated water pipe 27 is spirally wound on the cylindrical magnet 26, the inlet end of the solar heated water pipe 27 is connected with the water using pipe 2, the outlet end of the solar heated water pipe 27 is connected with the user water end 3 in the park through a pipe, and the bottom of both ends of the cylindrical magnet 26 is fixedly arranged through a mounting seat; the water treatment subassembly 4 magnetizes and preheats the purified water after upstream purification, and when the solar heated water pipe 27 is spirally wound and the internal water flow spirally flows, the magnetization effect of the water flow is effectively improved; in addition, the cylindrical magnet 26 not only has a magnetization effect but also has an auxiliary heat conduction effect, the selected cylindrical magnet 26 is black, which heats up quickly and has a high temperature under sunlight, and the solar heated water pipe 27 spirally wound thereon not only can absorb energy from sunlight but also can absorb heat conducted by the cylindrical magnet 26, so that the water flow in the solar heated water pipe 27 can be quickly preheated.

[0052] Embodiment 2: The internal circulation system for realizing comprehensive utilization of rainwater in a large garden is installed inside the large garden, and comprises an underground water storage device, an aboveground water storage device 9, and a domestic water purification device 1. The domestic water purification device 1 is connected to the inside of the underground water storage device and is used to treat the water collected in the inside of the underground water storage device and then deliver the treated water to a user water end 3 in the garden through a water delivery pipeline 2. The bottom of the aboveground water storage device 9 is connected to the underground water storage device, and a water treatment subassembly 4 is installed on the water delivery pipeline 2 between the domestic water purification device 1 and the user water end 3 in the garden.

[0053] The internal circulation system for realizing comprehensive utilization of rainwater in a large garden is mainly used for recycling and treating rainwater and wastewater in the garden. When recycling rainwater and garden wastewater, the underground water storage device and the aboveground water storage device 9 can be used to pre-store a large amount of pretreated water. The water in the aboveground water storage device 9 can be used for temporary irrigation of trees and vegetation around the garden. The water stored in the underground water storage device is purified by the end purification treatment component A before being stored, which can ensure that the water quality in the underground water storage device is better than that in the aboveground water storage device 9. When the user water end 3 in the garden needs domestic water, the domestic water purification device 1 and the water treatment subassembly 4 can be used to further purify, magnetize, and preheat the underground water, thereby ensuring the quality of the domestic water of the user water end 3 in the garden.

[0054] In any of the above solutions, preferably, the underground water storage device comprises a plurality of vertically arranged water well units 5, and a ring-shaped well cavity is formed between the vertical well 7 on the outer side of each water well unit 5 and the well wall 6, which is filled with a ring-shaped reinforced anti-seepage pouring protective layer 8.

[0055] The underground water storage device can effectively expand the storage capacity of the water source by using a plurality of water well units 5, and can ensure that the water in each water well unit 5 is evenly delivered outward when pumping water upward. In order to prevent water from seeping outward, the ring-shaped reinforced anti-seepage pouring protective layer 8 is provided, which can stabilize and reinforce the well wall 6 and fix and reinforce the water well unit 5.

[0056] In any of the above schemes, preferably, the vertical water well unit 5 comprises a ring-shaped corrosion-proof well tube 501, the bottom of which is sealed and blocked by a well bottom blocking end head 502, and the inner tube bottom of the ring-shaped corrosion-proof well tube 501 is in communication with the annular cavity of the ring-shaped corrosion-proof well tube 501, the outer tube 5011 and the inner tube 5012 of the ring-shaped corrosion-proof well tube 501 are coaxially and fixedly arranged, the ring-shaped corrosion-proof well tube 501 is fitted and installed in the inner cavity of the ring-shaped reinforced anti-seepage pouring sheath 8 at the corresponding position, the central cavity of the ring-shaped corrosion-proof well tube 501 is a central water inlet cavity 503, the annular cavity of the ring-shaped corrosion-proof well tube 501 is an annular water outlet cavity 504, a lifting submersible pump 505 is installed below the water surface of the annular water outlet cavity 504, the lifting submersible pump 505 lifts the water source in the annular water outlet cavity 504 upward and out through the lift water pipe 506 to the upper part of the corresponding vertical well 7, a ring-shaped bracket 507 is fixedly installed at the upper part of the central water inlet cavity 503, the outer side walls of the ring-shaped bracket 507 are fixed on the inner ring side wall of the ring-shaped corrosion-proof well tube 501 by anchor members, an end purification treatment component A is installed inside the central water inlet cavity 503 above the ring-shaped bracket 507, and the end purification treatment component A is used for end purification treatment of the pretreated rainwater and wastewater entering the inside of the ring-shaped corrosion-proof well tube 501.

[0057] A central sealing cover 508 is sealingly installed at the top of the central cavity of the ring-shaped corrosion-proof well tube 501, a underground water inlet main pipe 509 is movably and sealingly passed through the central position of the central sealing cover 508, the lower end of the underground water inlet main pipe 509 is connected with the water inlet end of the end purification treatment component A, the upper end of the underground water inlet main pipe 509 extends into the aboveground water storage device 9 and collects the rainwater and wastewater in the aboveground water storage device 9 to the underground water storage device, and a power water pump 510 is installed on the underground water inlet main pipe 509.

[0058] A ring-shaped sealing well cover is sealingly installed at the well mouth of the vertical well 7 of the ring-shaped reinforced anti-seepage pouring sheath 8, which is used to block the well mouth of the vertical well 7, and the upper end of the lift water pipe 506 is movably and sealingly passed through the ring-shaped sealing well cover and connected with the water inlet end of the domestic water purification device 1 on the park ground.

[0059] The vertical water well unit 5 relies on the central cavity and the annular cavity of the annular corrosion-proof well tube 501 to store water source, and because the central cavity and the annular cavity are in communication with each other, the water level in the central cavity and the annular cavity is at the same height. The water source enters from the top of the central cavity and needs to be further purified by the terminal purification treatment component A before entering, so as to ensure the quality of the underground stored water source. The annular water outlet cavity 504 serves as a water storage space, and the lifting submersible pump 505 installed in the annular water outlet cavity 504 can be started when water is needed, and drives the water in the corresponding water storage space to be lifted upward and output to the ground above for supplying the user water end 3 in the park.

[0060] The annular sealing well cover and the central sealing cover 508 provided on the annular corrosion-proof well tube 501 achieve the purpose of upper sealing.

[0061] In any of the above schemes, preferably, the terminal purification treatment component A includes a purification outer steel cylinder 511 installed in the central water inlet cavity 503, a purification inner steel cylinder 512 coaxially arranged in the inner cavity of the purification outer steel cylinder 511, and a sealing upper cover 514 and a sealing lower cover 515 respectively installed at the top and bottom of an annular purification cavity 513 formed by the purification inner steel cylinder 512 and the purification outer steel cylinder 511. The annular purification cavity 513 is divided into a plurality of installation sub-cavities 517 by a partition plate 516, and a water treatment membrane group 518 is respectively installed in each installation sub-cavity 517. The top water inlet pipe 519 of each water treatment membrane group 518 is movably and sealingly penetrated through the sealing upper cover 514 and connected to the underground water inlet main pipe 509 above by a connecting pipe, and the bottom water outlet pipe 521 of each water treatment membrane group 518 is movably and sealingly penetrated through the sealing lower cover 515.

[0062] The terminal purification treatment component A further purifies the water source entering from the top of the central cavity, and the underground water inlet main pipe 509 carries the externally preliminarily treated water source for purification. The water source is sequentially distributed to the corresponding water treatment membrane group 518 through the corresponding top water inlet pipe 519, and the water flow is further purified after passing through the water treatment membrane group 518 under the action of the pumping pressure on the pipe, so as to further improve the water quality of the water source.

[0063] In any of the above-mentioned solutions, preferably, a self-cleaning mechanism is installed in the inner cavity of the inner purification steel cylinder 512, which comprises an annular collection box 522 installed in the inner cavity of the inner purification steel cylinder 512, the outer sidewall of the annular collection box 522 is fixed on the inner cavity sidewall of the inner purification steel cylinder 512 by external thread, a sewage introduction elbow 524 is arranged at the top of the annular collection box 522 corresponding to the position of each water treatment membrane group 518 for connecting with the sewage outlet 523 at the top of each water treatment membrane group 518, a backflushing pipe 525 with a control valve is installed at the upper part of the lift water pipe 506 corresponding to the vertical water well unit 5, the backflushing pipe 525 is movable and sealed to pass through the through hole on the annular corrosion-proof well cylinder 501 and then passes out from the center through cavity 526 of the annular collection box 522 from top to bottom, a flushing jet branch pipe 527 is connected at the end of each backflushing pipe 525, and the end of each flushing jet branch pipe 527 is connected with the lower part of the backflushing pipe 525 at the corresponding position of the water treatment membrane group 518, and a backflushing one-way valve 528 and a sewage one-way valve 529 are installed on each lower backflushing pipe inlet 520 and sewage outlet 523.

[0064] The self-cleaning mechanism installed in the inner purification steel cylinder 512 of the end purification treatment component A uses the water source from the lower storage space and cooperates with the lift water pipe 506 and the lower backflushing pipe inlet 520 to introduce part of the cleaning water source into the lower backflushing pipe inlet 520 below each water treatment membrane group 518 through the corresponding flushing jet branch pipe 527, thereby achieving backflushing cleaning of each water treatment membrane group 518. Through backflushing treatment of each water treatment membrane group 518, the service life and period of the water treatment membrane group 518 can be effectively prolonged, the frequency of disassembly and cleaning can be reduced, and the purification use effect can be improved. The backflushing one-way valve 528 and the sewage one-way valve 529 arranged herein mainly play a role in controlling the flow direction.

[0065] In any of the above-mentioned solutions, preferably, an anti-corrosion coating is sprayed on each sidewall of the annular corrosion-proof well cylinder 501, which can better play an anti-corrosion role and avoid corrosion of residual substances.

[0066] Preferably in any of the above solutions, the ground water storage device 9 comprises a water collecting tank 901, a water medicator 902 is installed on the water collecting tank 901, the water medicator 902 is controlled to add water treatment chemicals into the water collecting tank 901 to treat the water, a water storage tank 903 is arranged on one side of the water collecting tank 901, a dustproof sealing cover 904 is arranged on the top of the water storage tank 903, a rainwater filtering assembly C is installed on the top of the water collecting tank 901, the water collecting tank 901 and the water storage tank 903 are connected through a diversion pipeline 905, a diversion electromagnetic valve 906 and a constant pressure starting diversion check valve 907 are installed on the diversion pipeline 905, the constant pressure starting diversion check valve 907 is only connected to the water storage tank 903 from the water collecting tank 901, low and high water level monitoring elements are arranged in the water storage tank 903, and the outlet end of the water storage tank 903 is connected to the corresponding underground water inlet main pipe 509 of each vertical water well unit 5 through a pipeline 908.

[0067] The ground water storage device 9 collects rainwater or waste water in the garden area in the water collecting tank 901, the water in the water collecting tank 901 is filtered by the rainwater filtering assembly C in three stages to filter out impurities, particles, leaves and grass, the water medicator 902 is used to add appropriate chemicals to the water in the water collecting tank 901 for reaction, after the reaction, the diversion electromagnetic valve 906 is opened, and part of the water can be used for irrigation of trees in the surrounding garden area. When the water in the water collecting tank 901 reaches a certain capacity, the constant pressure starting diversion check valve 907 is opened, so that the treated water in the water collecting tank 901 flows into the water storage tank 903, the water in the water storage tank 903 can be temporarily stored, and when it is needed to be transported to the underground water storage device, the pump body of each underground water inlet main pipe 509 is started to continuously drain the water into the vertical water well unit 5 of the underground water storage device for underground storage.

[0068] Preferably in any of the above solutions, the rainwater filtering assembly C comprises a positioning frame 10 fixedly installed on the upper part of the water collecting tank 901, a first filter screen 11, a second filter screen 12 and a third filter screen 13 are sequentially installed in the positioning frame 10 from top to bottom, and the mesh sizes of the first filter screen 11, the second filter screen 12 and the third filter screen 13 are sequentially reduced.

[0069] The first filter screen 11, the second filter screen 12 and the third filter screen 13 can realize three-stage filtration of impurities in rainwater and waste water, effectively improving the filtration effect.

[0070] Preferably, in any of the above solutions, a chute 14 is installed on both sides of the top of the medicated collection tank 901, an induction blocking upper cover 15 is arranged above the medicated collection tank 901, the induction blocking upper cover 15 is fitted into the corresponding chute 14 through the bottom of each sliding rail 16, an induction starting electric cylinder 17 is fixedly installed on the upper part of the outer side wall of the medicated collection tank 901, the end of the piston rod of the induction starting electric cylinder 17 is connected to the connecting seat 18 at the outer end of the bottom of the induction blocking upper cover 15, a rainwater sensor 19 is fixedly installed on the top of the induction blocking upper cover 15, the rainwater sensor 19 and the induction starting electric cylinder 17 are both powered by the solar cell module on the top of the induction blocking upper cover 15, signal connection is achieved between the rainwater sensor 19 and the induction starting electric cylinder 17, when the rainwater sensor 19 senses rainwater, it will feed back to the controller on the induction starting electric cylinder 17 and drive the piston rod of the induction starting electric cylinder 17 to extend outward and drive the induction blocking upper cover 15 to move outward and open the medicated collection tank 901, when no rainwater is sensed for a long time, the induction blocking upper cover 15 returns to the closed state, and the induction blocking upper cover 15 is used to achieve dustproof protection of the medicated collection tank 901.

[0071] In order to ensure dustproof and protective effect when the medicated collection tank 901 is idle, the induction blocking upper cover 15 is arranged, which can be opened according to the sensed rainwater (or manually controlled to open), so that when it is not necessary to receive external rainwater or waste water, the induction blocking upper cover 15 is in the closed state, and when it is raining or external waste water needs to be received, the induction starting electric cylinder 17 can be controlled to extend, so as to drive the induction blocking upper cover 15 to open and open the upper part of the medicated collection tank 901 to facilitate rainwater to fall in or waste water to pour in.

[0072] Preferably, in any of the above solutions, the domestic water purification device 1 comprises a plurality of water purification membrane units 20, each of the water purification membrane units 20 is arranged side by side, the inlet end and the outlet end of each of the water purification membrane units 20 are respectively connected with a purification inlet branch 21 and a purification outlet branch 22, each of the purification inlet branches 21 is connected with the outlet end of the lift water pipe 506 through a water inlet multi-way conversion valve 23, each of the purification outlet branches 22 is connected with the water using pipe 2 through a water outlet multi-way conversion valve 24, and a branch stop valve 25 is installed on each of the purification inlet branches 21 and each of the purification outlet branches 22.

[0073] The multiple water purification membrane units 20 on the domestic water purification device 1 can achieve the following effects: first, multiple units in parallel can effectively achieve the purification water volume per unit time; second, the water purification membrane units 20 on each branch can be closed individually, and the branches do not affect each other, so that the normal operation of other branches will not be affected when the water purification membrane units 20 on one branch fail or need to be replaced; third, each water purification membrane unit 20 can be selected to be opened synchronously, or only a part of the water purification membrane units 20 can be opened, and the remaining part of the water purification membrane units 20 can be kept in standby state, so that each water purification membrane unit 20 can serve as a backup unit, thereby ensuring that the entire domestic water purification device 1 can purify rainwater in a continuous and uninterrupted manner.

[0074] In any of the above solutions, preferably, the water treatment subassembly 4 comprises a fixedly arranged cylindrical magnet 26, a solar heated water pipeline 27 is spirally wound on the cylindrical magnet 26, the inlet end of the solar heated water pipeline 27 is connected with the water pipeline 2, the outlet end of the solar heated water pipeline 27 is connected with the user water end 3 in the park through a pipeline, and the bottom of each end of the cylindrical magnet 26 is fixedly arranged through a mounting seat.

[0075] The water treatment subassembly 4 magnetizes and preheats the purified water after upstream purification, and when the solar heated water pipeline 27 is spirally wound and the internal water flow spirally flows, the magnetization effect of the water flow is effectively improved. In addition, the cylindrical magnet 26 not only has a magnetization effect but also has an auxiliary heat conduction effect. The selected cylindrical magnet 26 is black, which is heated quickly and has a high temperature under sunlight. The solar heated water pipeline 27 spirally wound on the cylindrical magnet 26 can not only absorb energy from sunlight but also absorb heat conducted by the cylindrical magnet 26, so that the water flow in the solar heated water pipeline 27 can be quickly preheated.

[0076] The application further provides a construction method of the internal circulation system for realizing comprehensive utilization of rainwater in a large garden, wherein the internal circulation system for realizing comprehensive utilization of rainwater in a large garden is the above-mentioned internal circulation system for realizing comprehensive utilization of rainwater in a large garden, and the construction method comprises the following steps:

[0077] Surveying the terrain inside the large garden and selecting a construction site of the internal circulation system;

[0078] Completing the well-forming operation of the vertical well 7 of each vertically arranged water well unit 5 in sequence at the construction site;

[0079] Hoisting and placing the prefabricated annular corrosion-resistant well cylinder 501 into each vertical well 7 in sequence and positioning the axis;

[0080] The mixed mortar is cast into the annular cavity between each vertical well 7 and the corresponding annular corrosion-proof well tube 501, and after complete solidification, the annular reinforced anti-seepage cast layer 8 is formed;

[0081] The parts inside each annular corrosion-proof well tube 501 are installed and operated, and the installation and assembly of the current vertical water well unit 5 are completed, and thus the underground water storage device construction is completed;

[0082] The top ground of each vertical water well unit 5 is leveled, compacted, and the subsequent ground hardening treatment is completed;

[0083] The dosing collection tank 901 and the water storage tank 903 are built on the ground on one side of each vertical water well unit 5, and the installation of accessories including the dosing device 902, the dustproof sealing cover 904, the flow diversion pipeline 905, the constant pressure starting flow diversion one-way valve 907, the rainwater filter assembly C, and the water level monitoring element is completed, the underground water inlet main pipe 509 of each vertical water well unit 5 is connected with the outlet end of the water storage tank 903, and thus the installation and construction of the above-ground water storage device 9 is completed;

[0084] The domestic water purification device 1 and the water treatment subassembly 4 are installed at a suitable position on the ground;

[0085] The domestic water purification device 1 and the water treatment subassembly 4 are connected by using the water pipeline 2, and finally the user water end 3 in the park is connected by using the pipeline;

[0086] After the equipment installation is completed and the pipeline connection is good, the power supply is started, and the system operation test is realized by simulating a rainy day weather;

[0087] After the test is up to standard, the construction of the internal circulation system is completed.

[0088] The system can utilize the underground water storage device and the ground water storage device 9 to realize large capacity pre-storage of pretreated water source when recycling rainwater and garden wastewater. Meanwhile, the water source in the ground water storage device 9 can be used for temporary irrigation of trees and vegetation around the park. The water source stored in the ground will be further purified by the end purification treatment component A before entering the underground water storage device, which can ensure that the water quality in the underground water storage device is better than that in the ground water storage device 9. When the user water end 3 in the park needs domestic water, the domestic water purification device 1 and the water treatment subassembly 4 can be used to further purify, magnetize and preheat the underground water source, so as to ensure the quality of domestic water of the user water end 3 in the park. The ground water storage device 9 relies on the dosing collection tank 901 to preliminarily collect rainwater or wastewater in the park. The water in the dosing collection tank 901 is filtered by the three-stage rainwater filter assembly C to filter out impurities, particles, leaves and grass. The dosing device 902 is used to add appropriate liquid medicine to the water in the dosing collection tank 901 for reaction. After the reaction is completed, the flow control solenoid valve 906 is opened, and part of the water can be used for irrigation of trees around the park.

[0089] When the water in the dosing collection tank 901 reaches a certain capacity, the constant pressure start flow control one-way valve 907 is opened, so that the treated water in the dosing collection tank 901 flows into the water storage tank 903. The water in the water storage tank 903 can be temporarily stored. When it is needed to be transported to the underground water storage device, the pump body on each underground water inlet main pipe 509 is started to continuously drain the water source into each vertical water well unit 5 of the underground water storage device for underground storage. The underground water storage device realizes pre-storage of water source through multiple vertical water well units 5, which can effectively expand the storage capacity of water source and ensure balanced outward delivery of water in each vertical water well unit 5 when upward pumping. In order to prevent water leakage, the annular reinforced anti-seepage pouring sheath 8 is provided. It can stabilize and reinforce the drilling rock wall 6 and fix and reinforce the vertical water well unit 5. In addition, the vertical water well unit 5 relies on the central cavity and the annular cavity of the annular corrosion-resistant well shaft 501 to store water source. Since the central cavity and the annular cavity are in communication, the water levels in the central cavity and the annular cavity are at the same height. The water source enters from the top of the central cavity and needs to be further purified by the end purification treatment component A to ensure the quality of the underground stored water source. The lifting submersible pump 505 installed in the annular water outlet cavity 504 can be started to lift and output the water source in the corresponding storage space to the ground above for supply to the user water end 3 in the park when water is needed.

[0090] Before entering the user water end 3 in the park, the multiple water purification membrane unit 20 on the domestic water purification device 1 can achieve the following effects: first, multiple units in parallel can effectively achieve the purification water quantity in unit time; second, the water purification membrane unit 20 on each branch can be closed separately, and each branch does not affect each other, and when the water purification membrane unit 20 in one branch fails or needs to be replaced, it will not affect the normal operation of other branches; third, each water purification membrane unit 20 can be selected to be opened synchronously, or only a part of the water purification membrane unit 20 can be opened, and the remaining part of the water purification membrane unit 20 is in standby state, which can realize mutual standby between each water purification membrane unit 20, so as to ensure that the whole domestic water purification device 1 can realize normal purification of rainwater in continuous non-stop state.

[0091] When the water flow passes through the purification and enters the water treatment subassembly 4, the water treatment subassembly 4 can realize the magnetization treatment and the preheating treatment of the water flow after the upstream purification, the solar heating water pipeline 27 is spirally wound and the internal water flow spirally flows, which can effectively improve the magnetization effect of the water flow; in addition, the cylindrical magnet 26 not only has the magnetization effect but also has the auxiliary heat conduction effect, the selected cylindrical magnet 26 is black, which can be quickly heated and has a high temperature under the sunlight, the solar heating water pipeline 27 spirally wound on the cylindrical magnet 26 can not only absorb the energy from the sunlight but also absorb the heat conduction from the cylindrical magnet 26, so that the water flow in the solar heating water pipeline 27 can be quickly heated and preheated, and finally the purpose of supplying the user can be achieved.

[0092] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit the present application; although the present application is described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions recorded in the above embodiments can be modified, or some or all of the technical features can be replaced by equivalents; the modification or replacement does not make the essence of the corresponding technical solution deviate from the scope of the technical solutions of the embodiments of the present application, and should be covered in the scope of the claims and the description of the present application; any alternative improvement or change made by those skilled in the art to the embodiments of the present application falls within the protection scope of the present application.

[0093] The details of the present application not described are well known to those skilled in the art.

Claims

1. A large garden realizes the inner circulation system of rainwater comprehensive utilization, the inner circulation system is installed in the inside use of large garden, it is characterized in that: The inner circulation system comprises an underground water storage device, an aboveground water storage device and a domestic water purification device, the domestic water purification device is connected with the inside of the underground water storage device and is used for treating the water collected in the inside of the underground water storage device and then delivering the treated water to a user water end in the park through a water delivery pipeline, the bottom of the aboveground water storage device is communicated with the underground water storage device, and a water treatment subassembly is installed on the water delivery pipeline between the domestic water purification device and the user water end; The underground water storage device comprises a plurality of vertically arranged water well units, and annular well cavities are formed between the vertical wells on the outside of each water well unit and the drill hole rock wall, and the annular well cavities are filled with annular reinforced anti-seepage pouring protective layers; The vertical water well unit comprises an annular anticorrosion well cylinder, the bottom of the annular anticorrosion well cylinder is sealed by a well bottom sealing end head, the inner cylinder bottom of the annular anticorrosion well cylinder is communicated with the annular cavity of the annular anticorrosion well cylinder, the outer cylinder of the annular anticorrosion well cylinder is coaxial with the inner cylinder and is fixedly arranged, the annular anticorrosion well cylinder is arranged in the inner cavity of the annular reinforced anti-seepage pouring protective layer at the corresponding position, the central cavity of the annular anticorrosion well cylinder is a central water inlet cavity, the annular cavity of the annular anticorrosion well cylinder is an annular water outlet cavity, a lifting submersible pump is installed below the water surface of the annular water outlet cavity, the lifting submersible pump lifts the water in the annular water outlet cavity upward and passes through a lift water pipe to the upper side of the corresponding vertical well, a ring-shaped bracket is fixedly arranged at the upper portion of the central water inlet cavity, the outer side walls of the ring-shaped bracket are fixed on the inner ring side walls of the annular anticorrosion well cylinder by anchor members, and a terminal purification treatment component is arranged in the central water inlet cavity above the ring-shaped bracket; A central sealing cover is sealingly arranged at the top of the central cavity of the annular anticorrosion well cylinder, a underground water inlet main pipe is movably and sealingly arranged at the central position of the central sealing cover, the lower end of the underground water inlet main pipe is connected with the water inlet end of the terminal purification treatment component, and the upper end of the underground water inlet main pipe extends into the aboveground water storage device and guides and collects the rainwater in the aboveground water storage device to the underground water storage device.

2. The large-scale garden rainwater comprehensive utilization inner circulation system according to claim 1, characterized in that: The terminal purification treatment component is used for performing terminal purification treatment on the pre-treated rainwater and wastewater entering the inside of the annular anticorrosion well cylinder; A power submersible pump is arranged on the underground water inlet main pipe; A ring-shaped sealing well cover is sealingly arranged at the well mouth of the vertical well of the annular reinforced anti-seepage pouring protective layer, the ring-shaped sealing well cover is used for sealing the well mouth of the vertical well, and the upper end of the lift water pipe is movably and sealingly arranged out of the ring-shaped sealing well cover and is connected with the water inlet end of the domestic water purification device on the ground of the park.

3. The large-scale garden rainwater comprehensive utilization inner circulation system according to claim 2, characterized in that: An anticorrosion coating is sprayed on each side wall of the annular anticorrosion well cylinder.

4. The large-scale garden rainwater comprehensive utilization inner circulation system according to claim 3, characterized in that: The above-ground water storage device comprises a dosing collection pool, a dosing device is arranged on the dosing collection pool, the dosing device is controlled to add water treatment chemicals into the dosing collection pool to realize water treatment, a water storage pool is arranged on one side of the dosing collection pool, a dustproof sealing cover is arranged on the top of the water storage pool, a rainwater filtering assembly is arranged on the top of the dosing collection pool, the dosing collection pool and the water storage pool are connected through a flow switching pipeline, a constant pressure starting flow switching one-way valve is arranged on the flow switching pipeline, the constant pressure starting flow switching one-way valve is connected to the water storage pool from the dosing collection pool, low and high water level monitoring elements are arranged in the water storage pool, and the outlet end of the water storage pool is connected to the corresponding underground water inlet main pipes of the vertical water well units through pipelines.

5. The large-scale garden rainwater comprehensive utilization inner circulation system according to claim 4, characterized in that: The rainwater filtering assembly comprises a positioning frame fixedly arranged on the upper portion of the dosing collection pool, a first filter screen, a second filter screen and a third filter screen are sequentially arranged in the positioning frame from top to bottom, and the mesh sizes of the first filter screen, the second filter screen and the third filter screen are sequentially reduced.

6. The large-scale garden rainwater comprehensive utilization inner circulation system according to claim 5, characterized in that: Sliding grooves are arranged on both sides of the top of the dosing collection pool, an induction shielding upper cover is arranged above the dosing collection pool, the induction shielding upper cover is arranged in the corresponding sliding grooves through the sliding rails at the bottom, an induction starting electric cylinder is fixedly arranged on the upper portion of the outer wall of the dosing collection pool, the end of the piston rod of the induction starting electric cylinder is connected to the connecting seat at the bottom of the outer end of the induction shielding upper cover, a rainwater inductor is fixedly arranged on the top of the induction shielding upper cover, the rainwater inductor and the induction starting electric cylinder are powered by the solar cell assembly on the top of the induction shielding upper cover, signal connection is realized between the rainwater inductor and the induction starting electric cylinder, when the rainwater inductor senses rainwater, feedback is given to the controller on the induction starting electric cylinder, the piston rod of the induction starting electric cylinder is extended outward, the induction shielding upper cover is moved outward, the dosing collection pool is opened, when rainwater is not sensed for a long time, the induction shielding upper cover is reset and is in a closed state, and the induction shielding upper cover is used for dustproof protection of the dosing collection pool.

7. The large-scale garden rainwater comprehensive utilization inner circulation system according to claim 6, characterized in that: The domestic water purification device comprises a plurality of water purification membrane units, the water purification membrane units are arranged side by side, purification inlet branches and purification outlet branches are connected to the inlet ends and outlet ends of the water purification membrane units, respectively, each purification inlet branch is connected to the outlet end of the lift water pipe through a water inlet multi-way conversion valve, each purification outlet branch is connected to the water pipe through a water outlet multi-way conversion valve, and branch stop valves are arranged on each purification inlet branch and each purification outlet branch.

8. The large-scale garden rainwater comprehensive utilization inner circulation system according to claim 7, characterized in that: The water treatment subassembly comprises a fixedly arranged cylindrical magnet, a solar energy heated water pipeline is spirally wound on the cylindrical magnet, an inlet end of the solar energy heated water pipeline is connected with the water using pipeline, an outlet end of the solar energy heated water pipeline is connected with a user water end in the park through a pipeline, and the bottom of each end of the cylindrical magnet is fixedly arranged through a mounting seat. The water treatment subassembly magnetizes and preheats the purified water after upstream purification, the spiral winding of the solar energy heated water pipeline and the spiral flow of the internal water flow effectively improve the magnetization effect of the water flow, in addition, the cylindrical magnet not only has a magnetization effect but also has an auxiliary heat conduction effect, the selected cylindrical magnet is black, which is heated quickly and has a high temperature under sunlight, the solar energy heated water pipeline spirally wound thereon can not only absorb energy from sunlight but also absorb heat conducted by the cylindrical magnet, so that the internal water flow of the solar energy heated water pipeline can be quickly heated and preheated.

9. The construction method of the internal circulation system for realizing comprehensive utilization of rainwater in a large garden, wherein the internal circulation system for realizing comprehensive utilization of rainwater in a large garden is the internal circulation system for realizing comprehensive utilization of rainwater in a large garden according to any one of claims 4-8, characterized in that: The method comprises the following steps: Surveying the terrain inside a large garden and selecting a construction site of the internal circulation system; Completing the well forming operation of the vertical well and branch well of each vertically arranged water well unit in sequence at the construction site; Hoisting and placing the prefabricated annular corrosion-proof well tube into each vertical well in sequence and positioning the axis; Pouring mixed mortar into the annular cavity between each vertical well and the corresponding annular corrosion-proof well tube and forming an annular reinforced anti-seepage pouring protective layer after complete solidification; Performing the line laying installation operation on the parts inside each annular corrosion-proof well tube and completing the installation and assembly of the current vertical water well unit, thus completing the construction of the underground water storage device; Flattening and compacting the ground at the top of each vertical water well unit and completing the subsequent ground hardening treatment; Building a dosing and water collecting tank and a water storage tank on the ground on one side of each vertical water well unit and completing the installation of the accessories including a dosing device, a dustproof sealing cover, a flow diversion pipeline, a constant pressure starting flow diversion one-way valve, a rainwater filtering assembly, and a water level monitoring element, connecting the underground water inlet main pipe of each vertical water well unit with the outlet end of the water storage tank, thus completing the installation and construction of the above-ground water storage device; Installing a domestic water purification device and a water treatment subassembly at a suitable position on the ground; Connecting the domestic water purification device and the water treatment subassembly through a water using pipeline and finally connecting the user water end in the park through a pipeline; After the equipment installation is completed and the pipeline connection is good, starting the power supply and simulating a rainy day weather to test the system operation; After the test is qualified, the construction of the internal circulation system is completed.

Images