CN114892757A

CN114892757A - Sprinkling irrigation system is collected in wisdom of sponge urban rainwater

Info

Publication number: CN114892757A
Application number: CN202210585779.2A
Authority: CN
Inventors: 郝敬国; 杨晓敏
Original assignee: Jiangsu Haoyu Sponge City Technology Co ltd
Current assignee: Jiangsu Haoyu Sponge City Technology Co ltd
Priority date: 2022-05-26
Filing date: 2022-05-26
Publication date: 2022-08-12

Abstract

The invention relates to the technical field of sponge cities, in particular to an intelligent rainwater collecting and sprinkling irrigation system for a sponge city. The system comprises a rainwater collecting and purifying system, a rainwater sprinkling irrigation system and an Internet of things control system. The rainwater collection and purification system is arranged underground, comprises a siphon water prevention and drainage system, a pretreatment system, a water storage system and a purification system which are sequentially connected through pipelines from front to back, and is used for collecting rainwater and purifying and storing the rainwater. The rainwater sprinkling irrigation system comprises a water delivery pipe network distributed underground and an intelligent sprinkling irrigation device connected with the water delivery pipe network. The internet of things control system is powered by solar energy and remotely controls the rainwater sprinkling irrigation system to automatically irrigate. The rainwater can be collected and purified and applied to the water-saving sprinkling irrigation for urban landscaping, and the technical problems of water resource waste, high investment cost, incapability of carrying out automatic sprinkling irrigation according to soil humidity, non-uniform sprinkling irrigation and the like in the traditional urban landscaping irrigation mode can be effectively solved.

Description

Sprinkling irrigation system is collected in wisdom of sponge urban rainwater

Technical Field

The invention relates to the technical field of sponge cities, in particular to an intelligent rainwater collecting and sprinkling irrigation system for a sponge city.

Background

The sponge city is a new generation of urban rainfall flood management concept, has good elasticity in the aspects of adapting to environmental changes, coping with natural disasters caused by rainwater and the like, and is also called as a water elasticity city. With the acceleration of the urbanization process, the problem of difficult urban water utilization is also increasingly serious. Rainwater is used as a clean water source and plays an important role in the aspects of environment and water resource utilization. Therefore, rainwater is collected, purified and stored for secondary utilization, and the rainwater storage device is an effective solution for coping with natural disasters caused by rainwater and solving the problem of difficulty in urban water utilization.

At present, the irrigation mode of urban landscaping in China still adopts the traditional running water irrigation or sprinkling irrigation mode, so that the waste of water resources is increased, the cost is increased, and the national advocated concept of green, low carbon and environmental protection is not met. In addition, traditional irrigation needs to judge soil humidity and manual control sprinkling irrigation valve through the manual work, and the comparison consumes the manpower, can't realize automatic irrigation. Consequently, design a sponge city rainwater wisdom collection sprinkling irrigation system, collect the rainwater and reuse in the afforestation sprinkling irrigation, have important meaning to solving urban water resource shortage problem.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the intelligent sponge urban rainwater collecting and sprinkling irrigation system which can collect and purify rainwater and apply the rainwater to water-saving sprinkling irrigation of urban gardens and green belts, and can effectively solve the technical problems of water resource waste, high input cost, incapability of carrying out automatic sprinkling irrigation according to soil humidity, non-uniform sprinkling irrigation and the like in the traditional urban garden greening irrigation mode.

In order to achieve the technical purpose, the technical scheme adopted by the invention comprises the following specific contents:

in one technical scheme of the invention, the intelligent rainwater collecting and sprinkling irrigation system for the sponge city comprises a rainwater collecting and purifying system, a rainwater sprinkling irrigation system and an Internet of things control system;

the rainwater collecting and purifying system is arranged underground, comprises a siphon water-proof and drainage system, a pretreatment system, a water storage system and a purifying system which are sequentially connected through pipelines from front to back, and is used for collecting rainwater, purifying and storing the rainwater;

the rainwater sprinkling irrigation system comprises a water delivery pipe network distributed underground and an intelligent sprinkling irrigation device connected with the water delivery pipe network;

the Internet of things control system is powered by solar energy and remotely controls the rainwater sprinkling irrigation system to automatically irrigate.

Adopt above-mentioned technical scheme, collect the rainwater in the clean system collection soil and carry out filtering pretreatment in proper order to it through the rainwater, storage and purification, then through thing networked control system control rainwater sprinkler irrigation system, pass through the raceway net with the rainwater after the purification treatment and carry to intelligent sprinkling irrigation equipment, treat the sprinkling irrigation district and carry out automatic sprinkling irrigation, thereby realize collecting and sprinkling irrigation to the intellectuality of rainwater in the sponge city, realize the reuse of water resource, both can solve the natural disasters that the rainwater brought, also can solve the problem of city water difficulty.

In some possible embodiments of the present invention, the siphon water-proof and drainage system includes a drainage plate and a siphon water chute connected to each other, the siphon water chute is connected to a vent pipe and a water guiding pipe, a filtering layer is disposed above the drainage plate and the siphon water chute, a waterproof layer is disposed below the drainage plate and the siphon water chute, a soil planting layer is disposed above the filtering layer, and rainwater in the soil planting layer flows into the siphon water chute after being filtered and drained by the filtering layer and the drainage plate in sequence, and is guided to the rainwater pipe network by the water guiding pipe. By adopting the scheme, rainwater in the soil planting layer or redundant moisture of irrigation vegetation is filtered and drained in the filtering layer and the drainage plate through soil permeation, converged to the siphon water guiding groove through the water inlet of the siphon water guiding groove and guided to the rainwater pipe network through the water guiding pipe, so that the purpose of collecting and filtering the rainwater in the soil is achieved.

In some possible embodiments of the invention, the pretreatment system comprises a flow dividing well, a sewage intercepting device, a flow discarding device and a fine filtering device which are sequentially connected through pipelines from front to back, a water inlet of the flow dividing well is connected with a rainwater pipe network through a pipeline, a water outlet of the fine filtering device is connected with a water storage system through a pipeline, a first filter screen, a second filter screen and a third filter screen are respectively vertically arranged in the sewage intercepting device, the flow discarding device and the fine filtering device, and the single-hole areas of filter holes uniformly distributed on the first filter screen, the second filter screen and the third filter screen are sequentially reduced.

Adopt above-mentioned scheme, rainwater in the soil planting layer that drainage system was collected is prevented in siphon gets into the reposition of redundant personnel well through the rainwater pipe network, after holding back the great rubbish of partial volume, rainwater flows into through the pipeline and cuts dirty device, further holds back precipitation part impurity, then flows into through the pipeline and abandons a class device, abandons a class great rainwater of rainfall initial stage pollution to filter the rainwater, rainwater after the filtration flows into essence filter equipment through the pipeline, further meticulous filtration adsorbs the less impurity of detach granule, then rainwater after the filtration flows into water storage system through the pipeline and stores. In addition, the pretreatment system in the scheme can also treat rainwater collected by a ground surface and roof rainwater drainage system and collected into a rainwater pipe network, and the rainwater in the soil planting layer is treated together and collected into a water storage system for storage for recycling.

In some possible embodiments of the present invention, the water storage system includes a water storage tank assembled by a plurality of rainwater collection modules, and a water inlet well and a lift well which are arranged inside the water storage tank and extend to the ground, wherein the water inlet well is connected with the fine filtering device through a pipeline, and the bottom of the lift well is provided with a lift pump which is connected with the purification system through a pipeline. Through setting up the cistern and being used for saving the rainwater after pretreatment systems filtration, accessible elevator pump carries the rainwater to clean system on the one hand and carries out further purification treatment, finally is used for the sprinkling irrigation, and on the other hand, the rainwater of storage in the cistern still can be through connecting the reuse water pipeline, carries to in other external equipment for use in the aspect of fire control etc..

In some possible embodiments of the invention, a sewage pump is arranged at the bottom of the water inlet well, the sewage pump is connected with a municipal sewage pipe through a pipeline, a backwashing well extending upwards to the ground is further arranged inside the water storage tank, a plurality of flushing pipes are uniformly distributed at the bottom of the water storage tank, and a plurality of water permeable holes are distributed on the flushing pipes and used for backwashing and sewage discharge inside the water storage tank. The retrieval and utilization water pump through among the backwash well supplies water to the wash pipe in the cistern, washes the inside of cistern, and silt collects in the bottom of cistern under the action of gravity, through the dredge pump with silt pump drainage to municipal administration blow off pipe in to the realization washes clear purpose to the cistern, improves the life of cistern and promotes the quality of water storage.

In some possible embodiments of the present invention, the purification system includes a purification equipment well extending to the ground and a purification all-in-one machine disposed inside the purification equipment well, wherein a water inlet end of the purification all-in-one machine is connected to the lift pump through a pipeline, and a water outlet end of the purification all-in-one machine is connected to the water pipe network through a pipeline; the water in the reservoir is lifted to the purification integrated machine by the lift pump and is sequentially subjected to precipitation, flocculation, filtration and sterilization. Further purify waste water through purifying the all-in-one, improve recycle's rainwater quality to this clean system can bury, does not occupy the ground space, reduces the civil engineering cost, and water treatment is convenient.

In some possible embodiments of the invention, the rainwater sprinkling irrigation system further comprises a clean water tank arranged underground, the water inlet end of the clean water tank is connected with the purification all-in-one machine through a pipeline, the water outlet end of the clean water tank is provided with a booster pump for conveying water into a water conveying pipe network, and sprinkling irrigation is carried out through a spray head 8 connected in the intelligent sprinkling irrigation device.

In some possible embodiments of the invention, the rainwater sprinkling irrigation system further comprises a soil humidity sensor arranged underground and used for monitoring soil humidity and wirelessly transmitting humidity data to the internet of things control system, when the soil lacks water, the internet of things control system remotely controls the intelligent sprinkling irrigation device to pump water in the clean water tank through a water delivery pipe network, sprinkling irrigation is carried out on an area to be sprinkled, and the intelligent sprinkling irrigation device automatically stops sprinkling irrigation after the requirement of the soil humidity is met.

In some possible embodiments of the invention, the clean water tank is connected with the municipal water supply pipe network through a pipeline, the pipeline is provided with a water replenishing electromagnetic valve for replenishing tap water into the clean water tank, the clean water tank is provided with a liquid level sensor, the liquid level sensor and the water replenishing electromagnetic valve are both in wireless connection with the internet of things control system, and when the water level of the clean water tank is low, tap water is replenished into the clean water tank through the municipal water supply pipe network so as to ensure sufficient water consumption for sprinkling irrigation. Among this technical scheme, thing networked control system passes through the liquid level in the level sensor control clean water basin, and when the rainfall was few in dry season, the purification rainwater of storing was less in the clean water basin, and the water level is on the low side, and thing networked control system receives level sensor's low water level signal, and when the water level was on the low side and remote control moisturizing solenoid valve supplied water to the clean water basin through municipal water supply pipe network and guaranteed the water consumption of sprinkling irrigation.

In some possible embodiments of the invention, the internet of things control system supplies power through the solar battery assembly and the storage battery set which are arranged on the ground so as to save energy consumption, and the storage battery set adopts a colloid lead-acid storage battery, so that the service life of the battery is longer, and the charging and discharging performance is better. At night or in rainy days, the storage battery supplies power for the Internet of things control system, the sensors at all levels and the water pump set.

The intelligent sponge urban rainwater collecting and sprinkling irrigation system provided by the invention has the following beneficial effects:

according to the invention, rainwater on soil, ground and roof can be collected, filtered, stored and purified through the rainwater collecting and purifying system, then the rainwater is conveyed to the intelligent sprinkling irrigation device through the water conveying pipe network, the rainwater sprinkling irrigation system is controlled through the Internet of things control system, and the purified rainwater is used for automatic sprinkling irrigation, so that the intelligent collection and sprinkling irrigation of the rainwater in the sponge city are realized, the reuse of water resources is realized, and meanwhile, the solar energy is adopted for power supply, so that the energy consumption is saved, and the low carbon and environmental protection effects are achieved. The invention improves the rainwater collection and purification efficiency, greatly relieves the use pressure of tap water and underground water, and realizes accurate automatic irrigation of garden greenbelts by monitoring the soil in real time by means of an Internet of things control system.

The rainwater in the soil is quickly drained and collected through the siphon drainage preventing system, meanwhile, the rainwater collected by the surface rainwater drainage system and the roof rainwater drainage system can be combined and converged to the rainwater pipe network, then the rainwater is filtered step by step through the pretreatment system to remove most impurities and is treated, the pretreated rainwater is temporarily stored in the water storage system and can be directly used for rainwater recycling, and the rainwater can be further purified through the purification all-in-one machine to reach a certain water quality standard and then is stored in the clean water tank for sprinkling irrigation. When soil moisture sensor detects that the vegetation needs to spray, with signal transmission to thing networked control system control intelligence sprinkling irrigation equipment work, carry the rainwater from the clean water basin through the raceway network to the shower nozzle and spray, the shower nozzle automatic shutdown sprinkling irrigation that thing networked control system control intelligence sprinkling irrigation equipment connected after soil moisture reaches the requirement. When the rainfall is less or the liquid level is lower in the clean water basin in dry season, the water replenishing electromagnetic valve is opened by the Internet of things control system according to the feedback signal of the liquid level sensor, and water is supplied to the clean water basin through the municipal water supply pipe network so as to ensure sufficient irrigation water consumption.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a block diagram of the working process of the intelligent rainwater collection and sprinkling irrigation system for a sponge city;

FIG. 2 is a schematic structural view of the intelligent rainwater collection and irrigation system for sponge cities;

FIG. 3 is a schematic structural view of a siphon water-proof and drainage system in the rainwater collection and purification system of FIG. 2;

FIG. 4 is a schematic view of a pretreatment system in the rainwater collection and purification system of FIG. 2;

FIG. 5 is a schematic view of the water storage system in the rainwater collection and purification system of FIG. 2;

FIG. 6 is a schematic view showing the construction of a purification system in the rainwater collection and purification system of FIG. 2;

fig. 7 is a schematic structural diagram of the rainwater irrigation system and the internet of things control system in fig. 2.

The reference numbers in the figures illustrate: 1. a rainwater collection and purification system; 11. a siphon water-proof and drainage system; 111. a drain plate; 112. a siphon aqueduct; 113. a gas permeable pipe; 114. a water conduit; 115. a filter layer; 116. a waterproof layer; 117. a soil planting layer; 12. a pre-treatment system; 121. a diversion well; 122. a sewage interception device; 1221. a first filter screen; 1222. a stainless steel basket; 123. a flow discarding device; 1231. a second filter screen; 1232. a flow abandoning port; 1233. a floating ball; 124. a fine filtration device; 1241. a third filter screen; 1242. a sewage collecting hanging basket; 1243. a ceramic filter material; 13. a water storage system; 131. a reservoir; 132. a water inlet well; 133. lifting the well; 134. a lift pump; 135. a backwash well; 136. a flush tube; 137. a sewage pump; 138. a recycling water pump; 139. a liquid level monitoring device; 14. a purification system; 141. a decontamination equipment well; 142. purifying the integrated machine; 2. a rainwater sprinkling irrigation system; 21. a water delivery pipe network; 22. an intelligent sprinkling irrigation device; 23. a clean water tank; 24. a soil humidity sensor; 25. a booster pump; 26. a water replenishing electromagnetic valve; 27. a liquid level sensor; 28. a spray head; 3. an Internet of things control system; 31. an electrical control cabinet; 32. a central control system; 4. a storm drain network; 5. a municipal sewage pipe; 6. a solar cell module; 7. municipal water supply networks.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure. While the invention will be described in conjunction with the preferred embodiments, it is not intended that the features of the invention be limited to that embodiment.

In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "outer", "top", "bottom", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are usually placed when the products of the present invention are used, and are used for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. The terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present embodiment, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present embodiment can be understood in specific cases by those of ordinary skill in the art.

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In an embodiment of the invention, referring to fig. 1 and 2, in a technical scheme of the invention, an intelligent rainwater collection and sprinkling irrigation system for a sponge city comprises a rainwater collection and purification system 1, a rainwater sprinkling irrigation system 2 and an internet-of-things control system 3. The rainwater collecting and purifying system 1 is arranged underground, comprises a siphon water-proof and drainage system 11, a pretreatment system 12, a water storage system 13 and a purifying system 14 which are sequentially connected through pipelines from front to back, and is used for collecting rainwater, purifying and storing the rainwater. The rainwater irrigation system 2 comprises a water delivery pipe network 21 distributed underground and an intelligent sprinkling irrigation device 22 connected with the water delivery pipe network 21. The internet of things control system 3 is powered by solar energy, and the remote control rainwater sprinkling irrigation system 2 is used for automatic irrigation.

This embodiment collects the rainwater in the clean system collection soil through the rainwater and filters preliminary treatment, storage and purification to it in proper order, then through thing networked control system control rainwater sprinkler irrigation system, carries the rainwater after the purification treatment to intelligent sprinkling irrigation equipment through the raceway network, treats the sprinkling irrigation district and carries out automatic sprinkling irrigation to the wisdom collection and the sprinkling irrigation of rainwater in the realization sponge city, realize the reuse of water resource.

Further, in another embodiment of the present invention, referring to fig. 3, the siphon water-proof and drainage system 11 includes a drainage plate 111 and a siphon water chute 112 connected to each other, and a plurality of water inlets are formed at a side surface of the siphon water chute 112. The siphon water-proof and drainage system 11 can be arranged above an underground parking lot, an insulating layer and a waterproof layer 116 are laid above a building structure of the parking lot, a drainage plate 111 and siphon water chutes 112 are laid above the waterproof layer 116, and the drainage plate 111 is laid between the siphon water chutes 112 and is in seamless connection with a water inlet. A filter layer 115, such as a water-permeable geotextile or a non-woven fabric, is laid over the drain board 111 and the siphon water chute 112. Cover soil over the filter layer 115 and plant vegetation to form a soil planting layer 117. The siphon water chute 112 is connected with a vent pipe 113 and a water guide pipe 114, and the top of the vent pipe 113 extends to a soil planting layer 117 for ventilation and observation drainage.

The rainwater in the soil planting layer 117 or the excessive moisture of the irrigated vegetation permeates to the filtering layer 115 and the drainage plate 111 through the soil, and after filtration and seepage drainage, the water inlet through the siphon water chute 112 converges to the siphon water chute 112, and is guided to the rainwater pipe network 4 through the aqueduct 114, so that the rainwater in the soil is collected and filtered.

Further, in another embodiment of the present invention, referring to fig. 4, the pretreatment system 12 includes a flow dividing well 121, a sewage interception device 122, a flow abandoning device 123 and a fine filtration device 124 which are connected in sequence from front to back through pipes. The inlet of the diversion well 121 is connected with the rainwater pipe network 4 through a pipeline, and the outlet of the fine filter 124 is connected with the water storage system 13 through a pipeline.

Rainwater in the soil planting layer 117 collected by the siphon water-proof and drainage system 11 enters the diversion well 121 through the rainwater pipe network 4, after garbage with a large volume is intercepted, the rainwater flows into the sewage intercepting device 122 through a pipeline, impurities of a precipitation part are further intercepted, then the rainwater flows into the flow abandoning device 123 through a pipeline, the rainwater with large pollution at the initial stage of flow abandoning rainfall is abandoned, the rainwater is filtered, the filtered rainwater flows into the fine filtering device 124 through a pipeline, the impurities with small particles are further finely filtered and adsorbed, and then the filtered rainwater flows into the water storage system 13 through a pipeline to be stored.

Specifically, as shown in fig. 4, a vertical first filter screen 1221 made of stainless steel is disposed inside the dirt blocking device 122, and is used for blocking large-volume garbage, leaves, and the like in rainwater, and a stainless steel basket 1222 with a handle is suspended on the lower portion of the dirt blocking device 122, and is used for collecting and settling the garbage blocked by the first filter screen 1221, and then taking out the collected garbage to be cleaned.

Abandon the inside of class device 123 and be equipped with vertical stainless steel's second filter screen 1231, the bottom is equipped with abandons class mouth 1232 and communicates municipal administration blow off pipe 5, abandons class mouth 1232 upper and lower both sides and all is equipped with the floater 1233 that is connected for the opening and shutting of class mouth 1232 is abandoned in the control. When the initial rainwater flow is small, the rainwater pollution is serious, and after the rainwater flows into the flow discarding device 123, the rainwater is directly discharged into the municipal sewage pipe 5 through the flow discarding port 1232 at the bottom under the action of gravity. When later stage rainwater flow increases, the floating ball 1233 positioned above the discarding port 1232 floats upwards under the action of water flow buoyancy, the floating ball 1233 below is driven to close the discarding port 1232, the water level in the discarding device 123 rises, rainwater flows out of the discarding device 123 after being filtered through the vertically arranged second filter screen 1231, and then flows into the rear fine filter device 124 through a pipeline.

The inside third filter screen 1241 that is equipped with vertical stainless steel of essence filter unit 124, the lower part of the end of intaking hangs dirty basket 1242 of hanging, is filled with ceramic filter material 1243 between third filter screen 1241 and the play water end, and the rainwater after abandoning class device 123 filtration flows into essence filter unit 124, carries out further filtration through third filter screen 1241 earlier, and the impurity of intercepting is collected the clearance by dirty basket 1242 of hanging, and the ceramic filter material 1243 that flows again purifies the absorption, flows into water storage system 13 from the play water end through the pipeline at last and stores.

A plurality of filter holes are uniformly distributed on the first filter screen 1221, the second filter screen 1231 and the third filter screen 1241, the area of a single filter hole on the third filter screen 1241 is smaller than that of a single filter hole on the second filter screen 1231, and the area of a single filter hole on the second filter screen 1231 is smaller than that of a single filter hole on the first filter screen 1221.

The diversion well 121 is of a civil structure and is internally provided with an overflow pipeline. The top ends of the sewage interception device 122, the flow discarding device 123 and the fine filtering device 124 are provided with access holes communicated with the ground, so that the overhaul is convenient. The sewage interception device 122, the flow discarding device 123 and the fine filtering device 124 are all made of high polymer plastics by injection molding, and the high polymer plastics can be PE, HDPE, ABS or PC.

Further, in another embodiment of the present invention, referring to fig. 5, the water storage system 13 includes a water storage reservoir 131 assembled by a plurality of rainwater collection modules, and a water inlet well 132 and a lift well 133 disposed inside the water storage reservoir 131 and extending to the surface. The inlet well 132 is connected to the fine filter 124 through a pipe, and the bottom of the lifting well 133 is provided with a lift pump 134, and the lift pump 134 is connected to the purification system 14 through a pipe. The outside of the reservoir 131 is wrapped with an impermeable membrane and a protective plate arranged outside the impermeable membrane, and the top overhaul positions of the water inlet well 132 and the lifting well 133 are both provided with anti-falling nets. A level monitoring device 139 is provided in the lift well 133 for monitoring the water level within the reservoir 131.

In order to realize the automatic cleaning of the water storage tank 131, a sewage pump 137 is arranged at the bottom of the water inlet well 132, the sewage pump 137 is connected with the municipal sewage pipe 5 through a pipeline, and a backwashing well 135 extending upwards to the ground is further arranged inside the water storage tank 131. A plurality of flushing pipes 136 are uniformly distributed at the bottom of the water reservoir 131, and a plurality of water permeable holes are distributed on the flushing pipes 136. A reuse water pump 138 in the backwash well 135 is connected to the municipal water supply network 7, and supplies water to the inside of the reservoir 131 through a flush pipe 136 for backwashing and sewage disposal. Wherein the horizontal level of the soil discharge pump 137 is lower than the bottom level of the water reservoir 131. The reservoir 131 is filled with water through the backwash well 135, the inside of the reservoir 131 is washed by showering through the flushing pipe 136, and sludge deposited at the bottom of the reservoir 131 is pumped and discharged to the municipal sewage pipe 5 through the sewage pump 137.

Further, in another embodiment of the present invention, referring to FIG. 6, the decontamination system 14 includes a decontamination apparatus well 141 extending to the surface and a decontamination engine 142 disposed within the decontamination apparatus well 141. The water inlet end of the purification integrated machine 142 is connected with the lift pump 134 through a pipeline, and the water outlet end is connected with the water delivery pipe network 21 through a pipeline. The water in the reservoir 131 is lifted into the purification integrated machine 142 by the lift pump 134 and sequentially subjected to precipitation, flocculation, filtration and sterilization. The purification integrated machine 142 is provided with a pipeline connected with a municipal sewage pipe 5 for sewage disposal.

Further, in another embodiment of the present invention, referring to fig. 7, the rainsprinkler 2 further includes a clean water tank 23 and a soil moisture sensor 24 disposed underground. Wherein, the water inlet end of the clean water tank 23 is connected with the purification integrated machine 142 through a pipeline, and the water outlet end of the clean water tank 23 is provided with a booster pump 25 for delivering water to the water delivery pipe network 21 and then carrying out sprinkling irrigation through the spray head 28 connected in the intelligent sprinkling irrigation device 22. Soil humidity sensor 24 is used for monitoring soil humidity and with humidity data wireless transmission to thing networked control system 3. When soil lacks water, the humidity value that 24 soil moisture sensors detected is less than the setting value, and 24 soil moisture sensors transmit the signal to thing networked control system 3, and thing networked control system 3 remote control intelligence sprinkling irrigation equipment 22 passes through the water in the raceway network 21 extraction clean water basin 23, treats the sprinkling irrigation region and sprays, and intelligent sprinkling irrigation equipment 22 automatic stop sprinkling irrigation after reaching the soil moisture requirement.

The spray head 28 can be a hydraulic-propelled buried spray head, the height of the spray head can be adjusted, and the spray irrigation range can be controlled. The spray head 28 adopts a polyhedral structural design, and divides water flow, so that the spray irrigation is prevented from being damaged by the water flow while the omnibearing spray irrigation is realized.

The clean water tank 23 is connected with the municipal water supply pipe network 7 through a pipeline, a water supplementing electromagnetic valve 26 is arranged on the pipeline and used for supplementing tap water into the clean water tank 23, a liquid level sensor 27 is arranged in the clean water tank 23, the liquid level sensor 27 and the water supplementing electromagnetic valve 26 are both in wireless connection with the Internet of things control system 3, and when the water level of the clean water tank 23 is low, tap water is supplemented into the clean water tank 23 through the municipal water supply pipe network 7 to ensure sufficient sprinkling irrigation water consumption.

The internet of things control system 3 monitors the liquid level in the clean water tank 23 through the liquid level sensor 27, when the rainfall is small in dry seasons, the purified rainwater stored in the clean water tank 23 is small, the water level is low, the internet of things control system 3 receives a low water level signal of the liquid level sensor 27, the water replenishing electromagnetic valve 26 is controlled to be opened remotely, and tap water is replenished into the clean water tank 23 through the municipal water supply pipe network 7 to ensure the water consumption of sprinkling irrigation.

The lifting pump 134, the sewage pump 137, the reuse water pump 138, the liquid level monitoring device 139, the soil humidity sensor 24, the booster pump 25, the water replenishing electromagnetic valve 26, the liquid level sensor 27 and the like are all electrically or wirelessly connected with the electrical control cabinet 31. The central control system 32 in the internet of things control system 3 can remotely control the electrical control cabinet 31, so as to control the working states of the pump groups and the sensors at all levels.

Further, in another embodiment of the present invention, as shown in fig. 7, the internet of things control system 3 supplies power through the solar battery assembly 6 and the storage battery set arranged on the ground to save energy consumption, and the storage battery set adopts a colloid lead-acid storage battery. The solar cell module 6 is adopted to provide power, so that energy consumption can be saved. The storage battery adopts a colloid lead-acid battery, so that the service life of the battery is longer, and the charging and discharging performance is better. At night or in rainy days, the storage battery supplies power for the Internet of things control system 3, the sensors at all levels and the water pump set.

The rainwater pipe network 4 is connected with the siphon water-proof and drainage system 11 and also connected with a rainwater drainage system on the ground, the roof and the like, rainwater falling on the ground surface, the stratum, the roof and the like can be gathered and conveyed to the pretreatment system 12 together for treatment, and then stored by the water storage system 13 for subsequent rainwater sprinkling irrigation and recycling.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a more detailed description of the invention, taken in conjunction with the specific embodiments thereof, and that no limitation of the invention is intended thereby. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art should be within the scope of protection defined by the claims.

Claims

1. An intelligent rainwater collecting and sprinkling irrigation system for a sponge city is characterized by comprising a rainwater collecting and purifying system (1), a rainwater sprinkling irrigation system (2) and an Internet of things control system (3);

the rainwater collecting and purifying system (1) is arranged underground, comprises a siphon water-proof and drainage system (11), a pretreatment system (12), a water storage system (13) and a purifying system (14) which are sequentially connected through pipelines from front to back, and is used for collecting rainwater, purifying and storing the rainwater;

the rainwater sprinkling irrigation system (2) comprises a water delivery pipe network (21) distributed underground and an intelligent sprinkling irrigation device (22) connected with the water delivery pipe network (21);

the internet of things control system (3) is powered by solar energy, and the remote control rainwater sprinkling irrigation system (2) is used for automatic irrigation.

2. The intelligent collection and sprinkling irrigation system for rainwater in sponge cities as claimed in claim 1, wherein the siphon water-proof and drainage system (11) comprises a drainage plate (111) and a siphon water chute (112) which are connected with each other, the siphon water chute (112) is connected with a vent pipe (113) and a water conduit (114), a filter layer (115) is arranged above the drainage plate (111) and the siphon water chute (112), a waterproof layer (116) is arranged below the drainage plate (111) and the siphon water chute (112), a soil planting layer (117) is arranged above the filter layer (115), rainwater in the soil planting layer (117) flows into the siphon water chute (112) after being filtered and drained by the filter layer (115) and the drainage plate (111) in sequence, and is guided to the rainwater pipe network (4) through the water conduit (114).

3. The intelligent collection and sprinkling irrigation system for rainwater in the sponge city according to claim 1, wherein the pretreatment system (12) comprises a diversion well (121), a sewage interception device (122), a flow abandoning device (123) and a fine filtration device (124) which are sequentially connected through pipelines from front to back, a water inlet of the diversion well (121) is connected with a rainwater pipe network (4) through a pipeline, a water outlet of the fine filtration device (124) is connected with a water storage system (13) through a pipeline, a first filter screen (1221), a second filter screen (1231) and a third filter screen (1241) are respectively and vertically arranged in the sewage interception device (122), the flow abandoning device (123) and the fine filtration device (124), and the single-hole areas of filter holes uniformly distributed on the first filter screen (1221), the second filter screen (1231) and the third filter screen (1241) are sequentially reduced.

4. The intelligent collection and sprinkling irrigation system for rainwater in sponge cities as claimed in claim 3, wherein the water storage system (13) comprises a water storage tank (131) assembled by a plurality of rainwater collection modules, and a water inlet well (132) and a lifting well (133) which are arranged inside the water storage tank (131) and extend to the ground, the water inlet well (132) is connected with the fine filtering device (124) through a pipeline, the lifting pump (134) is arranged at the bottom of the lifting well (133), and the lifting pump (134) is connected with the purification system (14) through a pipeline.

5. The intelligent collection and sprinkling irrigation system for rainwater in the sponge city as claimed in claim 4, wherein a sewage pump (137) is arranged at the bottom of the water inlet well (132), the sewage pump (137) is connected with a municipal sewage pipe (5) through a pipeline, a backwashing well (135) extending upwards to the ground is further arranged inside the water storage tank (131), a plurality of flushing pipes (136) are uniformly distributed at the bottom of the water storage tank (131), and a plurality of water permeable holes are distributed in the flushing pipes (136) and used for backwashing and sewage discharge inside the water storage tank (131).

6. The intelligent sponge city rainwater collection and sprinkling irrigation system as claimed in claim 4, wherein the purification system (14) comprises a purification equipment well (141) extending to the ground and a purification integrated machine (142) arranged inside the purification equipment well (141), the water inlet end of the purification integrated machine (142) is connected with the lift pump (134) through a pipeline, and the water outlet end of the purification integrated machine is connected with the water delivery pipe network (21) through a pipeline; the water in the reservoir (131) is lifted to the purification integrated machine (142) by the lifting pump (134) and is sequentially subjected to precipitation, flocculation, filtration and sterilization treatment.

7. The intelligent collection and sprinkling irrigation system for rainwater in the sponge city according to claim 6 is characterized in that the rainwater sprinkling irrigation system (2) further comprises a clean water tank (23) arranged underground, the water inlet end of the clean water tank (23) is connected with the purification all-in-one machine (142) through a pipeline, and the water outlet end of the clean water tank is provided with a booster pump (25) for conveying water to a water conveying pipe network (21) and then sprinkling irrigation through a sprayer (28) connected with the intelligent sprinkling irrigation device (22).

8. The intelligent sponge city rainwater collection sprinkling irrigation system of claim 7, characterized in that, rainwater sprinkling irrigation system (2) are still including locating underground soil humidity sensor (24) for monitoring soil humidity and with humidity data wireless transmission to thing networked control system (3), when soil lacks water, thing networked control system (3) remote control intelligence sprinkling irrigation equipment (22) are through the water in conduit network (21) extraction clean water basin (23), treat the sprinkling irrigation area and spray irrigation, intelligent sprinkling irrigation equipment (22) automatic stop sprinkling irrigation after reaching soil humidity requirement.

9. The intelligent collection and sprinkling irrigation system for rainwater in the sponge city according to claim 8 is characterized in that the clean water tank (23) is connected with a municipal water supply pipe network (7) through a pipeline, a water supplement electromagnetic valve (26) is arranged on the pipeline and used for supplementing tap water into the clean water tank (23), a liquid level sensor (27) is arranged in the clean water tank (23), the liquid level sensor (27) and the water supplement electromagnetic valve (26) are both in wireless connection with the Internet of things control system (3), and when the water level of the clean water tank (23) is low, tap water is supplemented into the clean water tank (23) through the municipal water supply pipe network (7).

10. The intelligent sponge city rainwater collection and sprinkling irrigation system as claimed in claim 1, wherein the internet of things control system (3) supplies power through a solar battery assembly (6) arranged on the ground and a storage battery pack, and the storage battery pack adopts a colloid lead-acid storage battery.