Building roof greening and rainwater recycling irrigation system

Abstract

The invention relates to the technical field of building roof greening, and discloses a building roof greening and rainwater recycling irrigation system which comprises a microcontroller, a greening module arranged on a building roof, a rainwater recycling module connected with the greening module and an irrigation module. The microcontroller is electrically connected with the greening module, the rainwater recycling module and the irrigation module; the greening module sequentially comprises a water collecting layer, a filtering layer, a protective layer, a pervious concrete layer, a nutrient soil layer and a vegetation layer from bottom to top. The rainwater recycling module comprises a water pumping pipe arranged at the top of the side wall of the water collecting layer and a rainwater recycling box connected with the water pumping pipe; the rainwater recycling box comprises a first filter box, a second filter box, a disinfection box and a clear water box which are sequentially arranged from top to bottom; the irrigation module comprises a first water suction pump connected with the clear water tank, a water outlet pipe connected with the first water suction pump, a water conveying pipe connected with the water outlet pipe, a drip irrigation pipe connected with the water conveying pipe and a water dropper. By means of the system, maximum utilization of rainwater resources and continuous improvement of the ecological environment are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of building roof greening, and in particular to a building roof greening and rainwater recycling irrigation system. Background Art

[0002] Roof greening technology, by planting vegetation on the roof of a building and utilizing the growth and transpiration of plants, regulates the temperature and humidity of the roof, reduces the urban heat island effect, and improves the overall ecological environment quality of the city. At the same time, roof greening can also effectively absorb dust and harmful gases in the air, providing a more comfortable living environment for urban residents.

[0003] Traditional roof greening usually adopts artificial irrigation, which not only consumes a lot of water resources, but also requires regular maintenance, increasing the cost of greening. With the increasingly serious problem of water shortage, rainwater, as a renewable resource, has gradually been valued in the application of building water supply and drainage systems. In terms of roof greening, by collecting and storing rainwater for irrigation of roof plants, it can not only reduce the dependence on tap water, but also effectively utilize natural resources and promote the recycling of water resources. From the design and construction stage of the building, many buildings did not fully consider rainwater recycling irrigation when carrying out roof greening. In terms of plant irrigation, different plants have different requirements for water. If the irrigation plan is not reasonably configured according to the characteristics of the plants, some plants will rot due to excessive water, while others will wither due to lack of water. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides a building roof greening and rainwater recycling irrigation system that solves the problems of insufficient water resource utilization and inappropriate plant irrigation in the prior art for roof greening.

[0005] In order to achieve the above-mentioned purpose of the invention, the technical solution adopted by the present invention is: a building roof greening and rainwater recycling irrigation system, including a microcontroller, a greening module arranged on the building roof, a rainwater recycling module and an irrigation module connected to the greening module; the microcontroller is electrically connected to the greening module, the rainwater recycling module and the irrigation module.

[0006] The greening module includes water collection layer, filtration layer, protection layer, permeable concrete layer, nutrient soil layer and vegetation layer from bottom to top;

[0007] The rainwater recycling module includes a water pumping pipe arranged on the top of the side wall of the water collection layer and a rainwater recycling box connected to the water pumping pipe; the rainwater recycling box includes a first filter box, a second filter box, a disinfection box and a clean water tank arranged in sequence from top to bottom;

[0008] The irrigation module includes a first water pump connected to the clean water tank, a water outlet pipe connected to the first water pump, a water supply pipe connected to the water outlet pipe, a drip irrigation pipe connected to the water supply pipe and a dripper arranged on the drip irrigation pipe; the water supply pipe, the drip irrigation pipe and the dripper are arranged in the nutrient soil layer and the vegetation layer of the greening module.

[0009] The beneficial effects of the present invention are as follows: the system adds green vegetation to the city and increases the urban green space area through the greening module, and through the photosynthesis of the vegetation layer, it effectively absorbs carbon dioxide in the air and releases oxygen, which helps to reduce the urban heat island effect and improve the urban air quality. On rainy days, rainwater passes through the vegetation layer, nutrient soil layer, permeable concrete layer, protective layer and filter layer in turn. The rainwater that is not absorbed by the vegetation layer and nutrient soil enters the water collection layer and is stored. When the water volume in the water collection layer is about to reach the top, the rainwater is pumped into the rainwater recovery box, which also avoids the problem of water accumulation on the roof. The setting of the filter layer and the protective layer intercepts the soil and plant roots of the vegetation layer and the nutrient soil layer, and prevents the rainwater entering the water collection layer from being blocked by impurities. The permeable concrete layer has good water permeability, which can ensure that excess water can penetrate smoothly into the next layer.

[0010] The rainwater recycling module introduces the rainwater collected in the collection layer into the rainwater recycling tank through a pumping pipe, and undergoes multi-stage treatment in the first filter box, the second filter box and the disinfection box, and finally stores the clean rainwater in the clean water tank. It not only realizes the effective recycling of rainwater resources, but also ensures the cleanliness and safety of the recycled rainwater through strict filtration and disinfection treatment, so that it meets the standards for irrigation water.

[0011] The irrigation module uses drip irrigation pipes and drippers to accurately transport recycled rainwater in the clean water tank to the vegetation layer, realizing precise and water-saving irrigation. It not only improves the utilization efficiency of water resources, but also reduces the soil salinization problem caused by excessive irrigation, providing good moisture conditions for the healthy growth of vegetation.

[0012] Furthermore, in the above-mentioned building roof greening and rainwater recycling irrigation system, a micro-nano bubble device is arranged on the water outlet pipe, and a water inlet, a water outlet and an air inlet are arranged on the nano bubble device; the water inlet and the water outlet of the nano bubble device are both connected to the water outlet pipe, an air inlet pipe is arranged on the air inlet, and a solenoid valve is arranged on the air inlet pipe.

[0013] The beneficial effect of adopting the above further scheme is that the growth of plants depends on sufficient oxygen supply, especially in the root area. The micro-nano bubble device can greatly improve the oxygen environment in the soil or substrate by injecting oxygen-rich tiny bubbles into the irrigation water, promote the respiration of the plant roots, and thus improve the growth rate and health of the plants.

[0014] Furthermore, in the above-mentioned building roof greening and rainwater recycling irrigation system, a stainless steel screen is movably provided at the bottom of the first filter box; a microporous filter element is movably provided at the bottom of the second filter box; an ultraviolet lamp and a reflective cover are provided on the side wall of the disinfection box, and a chemical element detection device is provided on the side wall of the disinfection box, and the chemical element detection device is electrically connected to the microcontroller.

[0015] The beneficial effects of adopting the above further solution are: the stainless steel screen is set in the first filter box, which can effectively intercept large particles, leaves, dust and other impurities in rainwater. The stainless steel screen ensures stability and durability for long-term use due to its corrosion resistance and high strength. The movable setting makes the screen easy to disassemble and clean, ensuring the continuity and stability of the filtering effect.

[0016] In the second filter box, a microporous filter element is used as the filter medium to further remove small particles, suspended matter and some soluble organic matter in rainwater. The microporous filter element has the characteristics of small pore size and high filtration accuracy, which can effectively improve the purity of water quality. At the same time, the movable microporous filter element is easy to replace and maintain, ensuring the continuity and stability of the filtration effect.

[0017] Setting up ultraviolet lamps and reflective covers in the disinfection box is to use ultraviolet radiation to disinfect rainwater. Ultraviolet rays can destroy the DNA structure of microorganisms, thereby achieving the purpose of sterilization and disinfection. The design of the reflective cover can increase the irradiation range and intensity of ultraviolet rays and improve the disinfection efficiency. Ultraviolet disinfection has the advantages of no need to add chemical agents, no secondary pollution, and easy operation. Especially in the roof greening irrigation system, ultraviolet disinfection can ensure the safety and biosafety of irrigation water and avoid potential harm to plants and soil caused by the use of chemical disinfectants. The chemical element detection device can monitor the content of various trace elements in the soil. The microcontroller can analyze which elements are rich and which elements are lacking in the soil based on the feedback results of the chemical element detection device, so as to guide the selection of suitable plant species for planting. Targeted planting strategies help to improve the survival rate of plants and reduce plant deaths caused by soil element incompatibility. At the same time, when a certain nutrient element is detected to be lacking in the soil, it can be supplemented by adjusting the proportion of nutrient elements in the irrigation water to achieve precise fertilization and improve irrigation efficiency.

[0018] Furthermore, in the above-mentioned building roof greening and rainwater recycling irrigation system, the pumping pipe and the rainwater recycling tank are connected through a second pumping pump.

[0019] Furthermore, in the above-mentioned building roof greening and rainwater recycling irrigation system, a sewage pipe is arranged at the bottom of the side wall of the water collection layer.

[0020] The beneficial effects of adopting the above further scheme are as follows: In the actual operation of the system, leaves and soil are easily accumulated in the water collection layer. If these impurities are not cleaned in time, they will not only block the pipes and affect the smooth collection of rainwater, but also pollute the water quality, which will have an adverse effect on the subsequent treatment and irrigation links. A sewage pipe is set at the bottom of the side wall of the water collection layer. When the accumulated impurities reach a certain amount, the impurities can be pumped away by opening the sewage pipe valve.

[0021] Furthermore, in the above-mentioned building roof greening and rainwater recycling irrigation system, the aperture of the stainless steel screen is 5mm-10mm.

[0022] Furthermore, in the above-mentioned building roof greening and rainwater recycling irrigation system, a water level sensor is arranged in the water collection layer, and the water level sensor is electrically connected to the second water pump.

[0023] The beneficial effect of adopting the above further scheme is that the setting of the water level sensor enables the system to monitor the water level changes in the water collection layer in real time and accurately. When the water level in the water collection layer reaches the preset high water level, the water level sensor will send a signal to the second pump to start the pump to pump out the rainwater. On the contrary, when the water level is lower than the preset low water level, the pump will automatically stop working to avoid idling of equipment and increased energy consumption caused by excessive pumping.

[0024] Furthermore, in the above-mentioned building roof greening and rainwater recycling irrigation system, a waterproof layer is provided at the bottom of the water collection layer.

[0025] The beneficial effect of adopting the above further scheme is that the provision of the waterproof layer enhances the waterproof performance between the water collecting layer and the roof structure, effectively blocks the penetration of rainwater, and prevents moisture from invading the interior of the roof structure to cause damage such as corrosion and leakage.

[0026] The beneficial effects of the present invention are as follows: the building roof greening and rainwater recycling irrigation system proposed by the present invention realizes the maximum utilization of rainwater resources and the continuous improvement of the ecological environment through the intelligent management of the rainwater recycling module, the greening module and the irrigation module. The multi-layer structure of the greening module not only provides a good growth environment for vegetation, but also effectively collects and filters rainwater to provide sufficient water for subsequent irrigation. The rainwater recycling module purifies rainwater into clean water that meets irrigation standards through multi-stage filtration and disinfection, thereby realizing the recycling of water resources. Not only does it save precious water resources, but it also reduces dependence on municipal water supply and reduces operating costs. The irrigation module adopts drip irrigation, which can accurately control the amount of water to ensure that every drop of water can be fully absorbed by vegetation. The micro-nano bubble device increases the dissolved oxygen content of water, promotes the respiration of plant roots, and thus improves the growth quality of vegetation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is the structural diagram of the system;

[0028] Figure 2 It is a schematic diagram of the structure of the micro-nano bubble device and the rainwater recycling tank;

[0029] Among them: 1. water collection layer; 2. filtration layer; 3. protection layer; 4. permeable concrete layer; 5. nutrient soil layer; 6. vegetation layer; 7. water pumping pipe; 8. rainwater recovery box; 9. first filter box; 10. second filter box; 11. disinfection box; 12. clean water tank; 13. outlet pipe; 14. water pipe; 15. drip irrigation pipe; 16. dripper; 17. micro-nano bubble device; 18. water inlet; 19. water outlet; 20. air inlet; 21. air inlet pipe; 22. solenoid valve; 23. stainless steel screen; 24. microporous filter element; 25. ultraviolet lamp; 26. reflective cover; 27. first water pump; 28. sewage pipe; 29. ​​second water pump; 30. chemical element detection device. DETAILED DESCRIPTION

[0030] The specific implementation modes of the present invention are described below so that those skilled in the art can understand the present invention. However, it should be clear that the present invention is not limited to the scope of the specific implementation modes. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the attached claims, these changes are obvious, and all inventions and creations utilizing the concept of the present invention are protected.

[0031] like Figures 1-2 As shown, this embodiment provides a building roof greening and rainwater recycling irrigation system, which integrates rainwater collection, purification, storage and irrigation, realizes the automatic water supply and water saving function of roof greening, and at the same time, improves the ecological and environmental protection performance of urban buildings. The system includes a microcontroller, a greening module set on the roof of the building, a rainwater recycling module connected to the greening module, and an irrigation module;

[0032] The greening module includes, from bottom to top, a water collection layer 1, a filtration layer 2, a protective layer 3, a permeable concrete layer 4, a nutrient soil layer 5 and a vegetation layer 6;

[0033] The water-collecting layer 1 is located at the bottom and is responsible for collecting rainwater that is not absorbed by vegetation on rainy days. Its design takes into account the dual functions of drainage and water storage, ensuring that it can be quickly collected when there is sufficient rainwater, while preventing water accumulation from damaging the roof structure. The inner wall of the water-collecting layer 1 is provided with a water level sensor, which can monitor the water level changes in real time and control the start and stop of the second water pump 29 through electrical signals to achieve automatic management. In addition, a waterproof layer is laid at the bottom of the water-collecting layer 1 to ensure that moisture does not penetrate into the roof of the building. A sewage pipe 28 is set at the bottom of the side wall of the water-collecting layer 1.

[0034] The provision of the filter layer 2 and the protective layer 3 intercepts the soil and plant roots of the vegetation layer 6 and the nutrient soil layer 5, and prevents the rainwater entering the water collection layer 1 from being blocked by impurities.

[0035] The permeable concrete layer 4 has good water permeability, which can bear the weight of vegetation and upper soil without affecting the infiltration of rainwater, thereby ensuring the stability and water permeability of the greening module.

[0036] The nutrient soil layer 5 provides rich nutrients and a suitable soil environment, while the vegetation layer 6 is planted with various weather-resistant, beautiful and practical green plants, such as lawns, low shrubs, etc.

[0037] The rainwater recycling module is responsible for purifying the rainwater collected by the water collection layer 1 for irrigation; the rainwater recycling module includes a pumping pipe 7 arranged on the top of the side wall of the water collection layer 1 and a rainwater recycling box 8 connected to the pumping pipe 7; the rainwater recycling box 8 includes a first filter box 9, a second filter box 10, a disinfection box 11 and a clean water tank 12 arranged in sequence from top to bottom;

[0038] The pumping pipe 7 is arranged at the top of the side wall of the water collecting layer 1, and the rainwater in the water collecting layer 1 is pumped to the rainwater recovery tank 8 through the second pumping pump 29, ensuring that the rainwater can smoothly enter the recovery system and provide a stable water source for subsequent purification treatment.

[0039] The rainwater recycling box 8 is divided into a first filter box 9, a second filter box 10, a disinfection box 11 and a clean water box 12 from top to bottom. When the rainwater flows through these boxes, it will undergo multiple filtration and disinfection treatments and eventually become clean irrigation water. The bottom of the first filter box 9 is movably provided with a stainless steel screen 23, the aperture of which is between 5mm and 10mm; the second filter box 10 uses a microporous filter element 24; the side wall of the disinfection box 11 is provided with an ultraviolet lamp 25 and a reflective cover 26, and the side wall of the disinfection box 11 is provided with a chemical element detection device 30, which is electrically connected to the microcontroller.

[0040] The chemical element detection device 30 includes a light source, an atomizer, a monochromator and a detector. When the chemical element detection device 30 is working, the light source emits a characteristic spectrum line of the element to be detected, and the spectrum line has a specific wavelength. The rainwater is heated to a high temperature in the atomizer to convert the element to be detected into gaseous atoms. When the characteristic spectrum line passes through the atomic vapor, the gaseous atoms selectively absorb the light radiation that matches its resonance line. The detector measures the attenuation degree of the light radiation after passing through the atomic vapor, and the attenuation degree is proportional to the content of the element to be detected, which conforms to the Lambert-Beer law. The microcontroller receives the signal of the detector and outputs the content information of each element in the rainwater after processing.

[0041] Rainwater enters the first filter box 9, and the stainless steel screen 23 with a pore size of 5mm-10mm can effectively remove large particles of impurities such as leaves, sand and gravel in the rainwater. The selection of stainless steel material also fully considers its corrosion resistance and easy cleaning properties, ensuring the stability and durability of the screen in long-term use.

[0042] The rainwater after preliminary filtration flows into the second filter box 10, which uses a microporous filter element 24, whose pore size is much smaller than the stainless steel screen 23, and can further remove tiny particles and suspended matter in the water, such as dust, microorganisms, etc.

[0043] Then, rainwater enters the disinfection box 11. The ultraviolet light emitted by the ultraviolet lamp 25 installed on the side wall of the disinfection box 11 can kill microorganisms such as bacteria and viruses in the water, and the design of the reflector 26 ensures that the ultraviolet light can be evenly irradiated to every corner of the water flow without leaving dead corners.

[0044] The thoroughly purified rainwater flows into the clean water tank 12, which stores the clean water source for irrigation. The clean water tank 12 ensures that the greening module can be provided with stable and reliable irrigation water under any weather conditions.

[0045] The irrigation module includes a first water pump 27 connected to the clean water tank 12, a water outlet pipe 13 connected to the first water pump 27, a water supply pipe 14 connected to the water outlet pipe 13, a drip irrigation pipe 15 connected to the water supply pipe 14, and a dripper 16 arranged on the drip irrigation pipe 15; the water supply pipe 14, the drip irrigation pipe 15 and the dripper 16 are arranged in the nutrient soil layer 5 and the vegetation layer 6 of the greening module.

[0046] A micro-nano bubble device 17 is provided on the water outlet pipe 13, and a water inlet 18, a water outlet 19 and an air inlet 20 are provided on the nano bubble device; the water inlet 18 and the water outlet 19 of the nano bubble device are both connected to the water outlet pipe 13. The water inlet 18 is responsible for introducing the water flow to be treated, while the water outlet 19 outputs the water flow rich in micro-nano bubbles. In order to ensure the stable generation of bubbles, an air inlet pipe 21 is provided on the air inlet 20, and is equipped with a solenoid valve 22. The switching state of the solenoid valve 22 can be intelligently controlled according to actual needs, thereby adjusting the air intake and optimizing the bubble generation effect.

[0047] The first pump 27 extracts clean irrigation water from the clean water tank 12 and delivers it to the greening module through the outlet pipe 13. The outlet pipe 13 is provided with a micro-nano bubble device 17, which can generate a large number of micro-nano bubbles to increase the dissolved oxygen content and permeability of water, which is conducive to the absorption and utilization of plant roots.

[0048] The water pipe 14, the drip irrigation pipe 15 and the dripper 16 together form the terminal network of the irrigation system. The water pipe 14 transports water to every corner of the greening module, while the drip irrigation pipe 15 and the dripper 16 are responsible for accurately applying water to the roots of the plants in the form of drip irrigation. This irrigation method is both water-saving and efficient, ensuring that every drop of water can be fully utilized by the plants.

Claims

1. A building roof greening and rainwater recycling irrigation system, characterized in that: It includes a microcontroller, a greening module arranged on the roof of a building, a rainwater recycling module and an irrigation module connected to the greening module; the microcontroller is electrically connected to the greening module, the rainwater recycling module and the irrigation module; The greening module comprises, from bottom to top, a water collection layer (1), a filtration layer (2), a protective layer (3), a permeable concrete layer (4), a nutrient soil layer (5) and a vegetation layer (6); The rainwater recovery module comprises a water pumping pipe (7) arranged on the top of the side wall of the water collection layer (1) and a rainwater recovery tank (8) connected to the water pumping pipe (7); the rainwater recovery tank (8) comprises a first filter box (9), a second filter box (10), a disinfection box (11) and a clean water tank (12) which are arranged in sequence from top to bottom; The irrigation module comprises a first water pump (27) connected to a clean water tank (12), a water outlet pipe (13) connected to the first water pump (27), a water delivery pipe (14) connected to the water outlet pipe (13), a drip irrigation pipe (15) connected to the water delivery pipe (14), and a dripper (16) arranged on the drip irrigation pipe (15); the water delivery pipe (14), the drip irrigation pipe (15) and the dripper (16) are arranged on the nutrient soil layer (5) and the vegetation layer (6) of the greening module.

2. The building roof greening and rainwater recycling irrigation system according to claim 1, characterized in that: The water outlet pipe (13) is provided with a micro-nano bubble device (17), and the nano bubble device is provided with a water inlet (18), a water outlet (19) and an air inlet (20); the water inlet (18) and the water outlet (19) of the nano bubble device are both connected to the water outlet pipe (13), the air inlet (20) is provided with an air inlet pipe (21), and the air inlet pipe (21) is provided with a solenoid valve (22).

3. The building roof greening and rainwater recycling irrigation system according to claim 1 is characterized in that: A stainless steel screen (23) is movably provided at the bottom of the first filter box (9); a microporous filter element (24) is movably provided at the bottom of the second filter box (10); an ultraviolet lamp tube (25) and a reflective cover (26) are provided on the side wall of the disinfection box (11); a chemical element detection device (30) is provided on the side wall of the disinfection box (11); and the chemical element detection device (30) is electrically connected to a microcontroller.

4. The building roof greening and rainwater recycling irrigation system according to claim 1, characterized in that: The water pumping pipe (7) is connected to the rainwater recovery tank (8) via a second water pump (29).

5. The building roof greening and rainwater recycling irrigation system according to claim 1, characterized in that: A sewage discharge pipe (28) is arranged at the bottom of the side wall of the water collection layer (1).

6. The building roof greening and rainwater recycling irrigation system according to claim 3 is characterized in that: The pore size of the stainless steel screen (23) is 5 mm to 10 mm.

7. The building roof greening and rainwater recycling irrigation system according to claim 4, characterized in that: A water level sensor is arranged in the water collection layer (1), and the water level sensor is electrically connected to the second water pump (29).

8. The building roof greening and rainwater recycling irrigation system according to claim 1, characterized in that: A waterproof layer is arranged at the bottom of the water collection layer (1).

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