Green high-rise building water supply and drainage network and water-saving and energy-saving operation method thereof

Abstract

The present invention belongs to the field of green building water supply and drainage, and proposes a green high-rise building water supply and drainage network and its water-saving and energy-saving operation method, including a water supply network, a drainage network, a secondary pump room, and a roof drainage system. The water supply network includes a main pipe, a riser, and a branch pipe. The roof drainage system includes a water hopper, an electric control valve, a rainwater direct drainage downpipe, a rainwater treatment downpipe, a downspout, a membrane filtration treatment core, an inclined flow pipe, a rainwater main pipe, and a valve. The end of the rainwater main pipe is provided with multiple reserve water tanks and U-shaped water pipes. The reserve water tanks are arranged on different floors, and the lowest U-shaped water pipe is connected to the rainwater direct drainage downpipe. The present invention fully utilizes the potential energy of rainwater to process, recycle, and store rainwater during the rainy season, saving water and energy. At the same time, the water supply network can also provide a portion of clean water to the rainwater main pipe and reserve water tank for storage during peak water consumption to supply property use. The design is reasonable and conforms to the concept of green environmental protection.

Description

Technical Field

[0001] The present invention belongs to the field of green building water supply and drainage, and in particular relates to a green high-rise building water supply and drainage network and a water-saving and energy-saving operation method thereof. Background Art

[0002] Green buildings are buildings that maximize resource conservation, environmental protection, and pollution reduction throughout their lifecycle, providing people with healthy, practical, and efficient spaces, and coexisting harmoniously with nature. The water supply and drainage network of a green building is similar to that of many other buildings, including a water supply network and a drainage network. The water supply network includes trunk pipes, risers, and branches, while the drainage network includes sewage pipes, fecal pipes, and exhaust pipes. Rainwater drainage is considered during the design and construction phases of green buildings. Generally, rooftop rainwater drainage systems are divided into two types: organized drainage and unorganized drainage. Organized drainage involves dividing the roof into several drainage areas based on different slopes, concentrating rainwater into roof gutters or roof gutters, and then directing the rainwater to the ground drainage system through downspouts, downspouts, and other water-guiding devices.

[0003] Currently, most buildings, including green buildings, have rainwater drainage systems that are independent of the building's water supply and drainage network. Generally, buildings discharge rainwater directly into green areas or municipal drainage systems. Although green buildings have proposed rainwater recycling solutions, these systems collect rainwater above and below ground, filter it, deacidify it, and then pump it into the building's internal systems. This wastes some of the potential energy as the rainwater flows from high-level to low-level and back again, and requires additional work from the equipment. Furthermore, it's inconvenient for property management staff to use water when cleaning public areas, especially in high-rise buildings. This inconvenience can lead to infrequent water changes and substandard cleaning, impacting the overall sanitation of the building. Summary of the Invention

[0004] In response to the technical problems existing in the above-mentioned water supply and drainage network, the present invention proposes a green high-rise building water supply and drainage network and its water-saving and energy-saving operation method, which has a reasonable design, can reasonably utilize rainwater drainage from building roofs, can prepare water sources and supply them for daily use in buildings, and conforms to the concept of green environmental protection.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: the green high-rise building water supply and drainage network provided by the present invention includes a water supply network, a drainage network, a secondary pump room and a roof drainage system, the water supply network includes a main pipe, a riser and a branch pipe, the roof drainage system includes a water bucket, an electric control valve is provided on the water bucket, and two downpipes connected to the electric control valve are provided at the bottom of the water bucket, the tops of the two downpipes are connected to the water bucket in an N shape and the cross-sections thereof are both rectangular, the two downpipes are respectively a rainwater direct drainage downpipe and a rainwater treatment downpipe, the bottom of the rainwater direct drainage downpipe is a downspout, and a membrane filtration treatment core is provided on the flow path of the rainwater treatment downpipe, and the membrane filtration treatment core H-shaped inclined flow pipes connected to the rainwater straight drainage downpipe are provided above and near the bottom. A rainwater main pipe is provided at the bottom of the rainwater treatment downpipe. The rainwater main pipe is installed at a position higher than the top 3 floors of the green high-rise building. The rainwater main pipe is connected to the riser and branch pipe. Valves are provided on the rainwater main pipe and the riser. A plurality of reserve water tanks are provided at the end of the rainwater main pipe. The plurality of reserve water tanks are arranged in series up and down through a plurality of groups of U-shaped water pipes and are respectively arranged on different floors. A reserve water pipe for property cleaning water is provided on the U-shaped water pipe. An intelligent faucet is provided at the water outlet of the reserve water pipe. The U-shaped water pipe at the lowest position is connected to the rainwater straight drainage downpipe.

[0006] Preferably, the reserve water tank is arranged above the 6th floor of the green building and one reserve water tank is arranged every other floor. No reserve water tank is arranged on the top two floors of the green building.

[0007] Preferably, the reserve water tank includes an outer water tank and an inner water tank, an insulation layer is provided between the outer water tank and the inner water tank, the longitudinal section of the reserve water tank is U-shaped and its fracture is rectangular, the outer water tank is provided with a water inlet connected to the inner water tank near the top of its left side, the water inlet is connected to the water outlet end of the previous U-shaped waterway pipe, the middle of the outer water tank and near its bottom is provided with a water outlet connected to the inner water tank, the water outlet is connected to the water inlet end of the next U-shaped waterway pipe, a normally closed top cover is provided at the top of the left side of the reserve water tank and a ventilation slide cover is provided on the right side, a breathing port is provided on the normally closed top cover, and a grate plate located inside the reserve water tank is provided below the ventilation slide cover.

[0008] Preferably, the U-shaped waterway pipe includes a first horizontal pipe connected to the water outlet, the reserve water pipe is arranged on the first horizontal pipe, the end of the first horizontal pipe away from the water outlet is provided with a first vertical pipe through a first elbow, the bottom of the first vertical pipe is provided with a second horizontal pipe through a second elbow, the end of the second horizontal pipe is connected to the second vertical pipe through a third elbow, the end of the second vertical pipe is provided with a third horizontal pipe through a fourth elbow, the end of the third horizontal pipe is provided with a plug, and the third horizontal pipe is provided with a water inlet pipe through a tee, and the water inlet pipe is connected to the water inlet.

[0009] Preferably, a plurality of pairs of lifting ears are provided at the U-shaped opening of the reserve water tank, and the lifting ears include upper lifting ears and lower lifting ears.

[0010] Preferably, a support frame is provided at the bottom of the preparation water tank, and the support frame includes a pair of main beams, and a trough is provided on the main beam to cooperate with the bottom of the preparation water tank, and the two ends of the trough cooperate with the bottom corners of the preparation water tank. A plurality of support beams are provided between the main beams, and the cross-section of the support beam is rectangular and tenons are provided at both ends, and the tenons cooperate with mortises provided on the main beams. The two ends of the main beam are provided with crutch legs welded thereto as a whole, and the crutch legs are bent and extended downward, and a screw is provided between the relatively distributed crutch legs, and positioning nuts are provided at both ends of the screw.

[0011] Preferably, the rainwater treatment downpipe includes a top pipe, a main pipe and a bottom pipe. The top pipe is an N-shaped structure. The width of the main pipe is twice the width of the rainwater straight drainage downpipe and is used to install a membrane filtration treatment core.

[0012] Preferably, the membrane filtration treatment core has a ring-shaped structure and a closed end at the top. Rainwater is concentrated from the side of the membrane filtration treatment core toward its center and the concentrated clean water enters the rainwater main pipe from the bottom pipe. The sewage after the rainwater concentration treatment enters the rainwater straight drain pipe from the inclined flow pipe.

[0013] The water-saving and energy-saving operation methods of the water supply and drainage network of green high-rise buildings include water-saving methods in the rainy season and water-saving methods in the non-rainy season. The specific methods are as follows:

[0014] Water conservation measures during the rainy season: The roof drainage system uses electronically controlled valves to regulate the flow of rainwater from the direct drainage downpipes and the rainwater treatment downpipes during the rainy season. A portion of the rainwater is treated in the rainwater treatment downpipes and then stored in reserve water tanks on different floors in sequence due to the high potential difference and without the action of pumps. The reserve water tanks provide water for property cleaning during the rainy season and the week after the rainy season.

[0015] In the non-rainy season, the water supply network provides clean water to the rainwater main pipe through the secondary pump room. The secondary pump room supplies water to the rainwater main pipe from 2 to 5 a.m., and adopts intermittent water supply control during the water supply period. The intermittent time is 30 to 45 minutes, and the control flow is no more than 26m 3 / h, clean water is stored from the rainwater main into different reserve water tanks, which provide water for property cleaning work.

[0016] Compared with the prior art, the advantages and positive effects of the present invention are:

[0017] 1. The green high-rise building water supply and drainage network provided by the present invention establishes a connection with the roof drainage system through the risers and branches of the water supply network. Instead of being treated on the ground, a portion of rainwater is effectively treated and stored directly by the roof drainage system, making full use of potential energy, reducing additional work done by equipment, and saving water and energy. At the same time, the water supply network can also provide a portion of clean water to the rainwater main pipe and reserve water tank for storage and supply to the property.

[0018] 2. The water-saving and energy-saving operation method of the green high-rise building water supply and drainage network provided by the present invention adopts the water-saving method in the rainy season to recycle and reuse rainwater, saving water and energy, and avoiding peak water use in the non-rainy season. It does not affect the peak water use pressure in the green building, which is conducive to ensuring the normal daily water supply for residents and water for property cleaning work. The design is reasonable and conforms to the concept of green environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 A schematic diagram of a green high-rise building water supply and drainage network provided in an embodiment;

[0021] Figure 2 A schematic diagram of a roof drainage system provided in an embodiment;

[0022] Figure 3 An axonometric view of the preparatory water tank and the U-shaped waterway pipe provided in the embodiment;

[0023] Figure 4 A cross-sectional view of a preliminary water tank provided in an embodiment;

[0024] In the above figures, 1. water supply network; 11. main pipe; 12. riser; 13. branch pipe; 2. drainage network; 3. secondary pump room; 4. roof drainage system; 41. hopper; 42. electric control valve; 43. downpipe; 431. rainwater direct drainage downpipe; 432. rainwater treatment downpipe; 432a. top pipe; 432b. main pipe; 432c. bottom pipe; 44. downspout; 45. membrane filtration treatment core; 46. oblique flow pipe; 47. rainwater main pipe; 5. reserve water tank; 51. outer water tank; 52. inner water tank; 53. insulation layer; 54. water inlet; 55. water outlet; 56. constant Close the top cover; 57. Ventilation sliding cover; 58. Breathing port; 59. Grate plate; 510. Lifting ear; 6. U-shaped water pipe; 61. First horizontal pipe; 62. First elbow; 63. First vertical pipe; 64. Second elbow; 65. Second horizontal pipe; 66. Third elbow; 67. Second vertical pipe; 68. Fourth elbow; 69. Third horizontal pipe; 610. Plug; 611. Tee; 612. Water inlet pipe; 7. Reserve water pipe; 8. Support frame; 81. Main beam; 82. Support beam; 83. Tenon; 84. Crutch leg; 85. Screw; 86. Positioning nut; 87. Sink. DETAILED DESCRIPTION

[0025] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other unless they conflict. For the convenience of description, the words "upper", "lower", "left", and "right" appearing below only indicate the upper, lower, left, and right directions consistent with the drawings themselves and do not limit the structure.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Examples, such as Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, the green high-rise building water supply and drainage network and its water-saving and energy-saving operation method provided by the present invention include a water supply network 1, a drainage network 2, a secondary pump room 3 and a roof drainage system 4. The water supply network 1 includes a main pipe 11, a riser 12 and a branch pipe 13. The drainage network 2 includes a sewage pipe, a feces pipe and an exhaust pipe. The secondary pump room 3 provides water pressure to the high floors through secondary pressurization to ensure normal pressure water supply. The secondary pump room 3 includes water pumps, various valves and pressure gauges, flow stabilization compensators, pressure reducing valves and negative pressure suppressors, etc., which will not be repeated here in the present invention. Since the rainwater utilization plan in green buildings conforms to the green and environmentally friendly architectural concept, and the rational use of rainwater can achieve the purpose of water saving and energy saving. In addition to the use of ground rainwater in green building communities, the present invention focuses on the rational recovery and utilization of rainwater flowing through the roof drainage system 4.

[0028] Specifically, the roof drainage system 4 provided by the present invention includes a hopper 41, an electric control valve 42 is provided on the hopper 41, and two downpipes 43 connected to the electric control valve 42 are provided at the bottom of the hopper 41. The tops of the two downpipes 43 are N-shaped and connected to the hopper 41, and their cross-sections are both rectangular. The two downpipes 43 are respectively a rainwater direct drainage downpipe 431 and a rainwater treatment downpipe 432. The bottom of the rainwater direct drainage downpipe 431 is a downspout 44. A membrane filtration treatment core 45 is provided on the flow path of the rainwater treatment downpipe 432. The membrane filtration treatment core 45 is provided above and near its bottom with an H-shaped downpipe connected to the rainwater direct drainage downpipe 431. A rainwater main pipe 47 is provided at the bottom of the inclined flow pipe 46 and the rainwater treatment downpipe 432. This main pipe 47 is installed above the top three floors of the green high-rise building. It is connected to the riser 12 and branch pipe 13. Both the main pipe 47 and the riser 12 are equipped with valves. Multiple reserve water tanks 5 are located at the end of the main pipe 47. These reserve water tanks 5 are arranged in series vertically via multiple sets of U-shaped water pipes 6 and are located on different floors. The U-shaped water pipes 6 are equipped with reserve water pipes 7 for property cleaning water. The outlet of the reserve water pipes 7 is equipped with a smart faucet. The lowest U-shaped water pipe 6 is connected to the rainwater straight-drain downpipe 431. The water-saving and energy-saving operation method for the green high-rise building water supply and drainage network provided by the present invention includes a water-saving method for rainy season and a water-saving method for non-rainy season. The specific method for combining this with the green high-rise building water supply and drainage network is as follows.

[0029] In this device, a connection is established between the riser 12 and branch pipes 13 of the water supply network 1 and the roof drainage system 4. This allows some rainwater to be effectively processed and stored directly by the roof drainage system 4, rather than being treated on the ground. This fully utilizes potential energy, reduces additional equipment work, and saves water and energy. More specifically, an electrically controlled valve 42 controls the opening of two downspouts 43. Opening both downspouts 43 simultaneously prevents excessive rainfall during rainy seasons and delayed drainage. Furthermore, the N-shaped structure of the two downspouts buffers the impact of rainwater without affecting the continued downward flow of water. In particular, a portion of the rainwater enters the rainwater treatment downpipe 432 and is concentrated and deacidified at the membrane filtration treatment core 45. The concentrated water produced by the treatment and the rainwater above the highest position of the inclined flow pipe 46 enter the rainwater straight discharge downpipe 431 from the inclined flow pipe 46. The clean water produced by the treatment enters the rainwater main pipe 47. The rainwater in the rainwater main pipe 47 flows toward the reserve water tank 5 under the potential difference of the rainwater above it. The reserve water tanks 5 at different layers are effectively filled with water under the action of water pressure. Unless there is enough water, the excess water enters the rainwater straight discharge downpipe 431 from the U-shaped water pipe 6 at the end for discharge, or the rainwater treatment downpipe 432 is closed from the electric control valve 42. In this way, through the water-saving method in the rainy season, that is, the roof drainage system 4 regulates the flow of the rainwater direct discharge downpipe 431 and the rainwater treatment downpipe 432 through the electric control valve 42 in the rainy season, a part of the rainwater is treated by the rainwater treatment downpipe 432, and then stored in the reserve water tank 5 on different floors in sequence under high potential difference and without the action of a pump. The reserve water tank 5 provides water for property cleaning work in the rainy season and the week after the rainy season, thereby achieving the purpose of energy and water saving.

[0030] Furthermore, since the water supply network 1 has established a connection with the roof drainage system 4, the water supply network 1 can also provide a portion of clean water to the rainwater main pipe 47 and the reserve water tank 5 for storage to supply the property. In this way, through the water saving method in the non-rainy season, that is, the water supply network 1 provides clean water to the rainwater main pipe 47 through the secondary pump room 3, and the secondary pump room 3 supplies water to the rainwater main pipe 47 from 2 to 5 in the morning. During the water supply period, intermittent water supply is adopted, and the intermittent time is 30 to 45 minutes, and the control flow is not more than 26m 3 / h, the clean water is stored in different reserve water tanks 5 from the rainwater main 47, and the reserve water tanks 5 provide water for property cleaning. For the use of Φ110mm×2.7mm pipes, the water flow rate is 1m / s, and the maximum flow rate is 32.4m 3 / h or so, and the energy-saving and water-saving operation method designed by the present invention in the non-rainy season avoids water consumption during peak periods, and intermittently controls the replenishment of water to the reserve water tank 5, which does not affect the water pressure during peak periods in the green building. Even if there is a large amount of water consumption during non-peak periods, the water supply method of the reserve water tank 5 of the present invention can fully guarantee the normal daily water supply for residents and water for property cleaning work. The design is reasonable and in line with the concept of green environmental protection.

[0031] Since water is conveniently available on lower floors, the reserve water tank 5 in the present invention is not set up on lower floors, but is set up above the 6th floor of the green building, and a reserve water tank 5 is set up every other floor. The purpose of the interlayer setting is to ensure that there is sufficient pressure in each reserve water tank 5, and to use its potential difference to ensure the continuity of water output, thereby ensuring the convenience of water use for property cleaning. In addition, in order to ensure that the membrane filtration treatment core 45 has sufficient processing time and space, the present invention sets the membrane filtration treatment core 45 on the top 2 floors of the green building, and the top 2 floors of the green building do not have a reserve water tank 5, to ensure that the water treated by the membrane filtration treatment core 45 can be effectively stored in all series-connected reserve water tanks 5. It should be noted that a reasonable number of valves are set in the water inlet and outlet directions of each reserve water tank 5 to provide reasonable control for water use on different floors.

[0032] In order to improve the utilization rate of the reserve water tank 5, the reserve water tank 5 provided by the present invention includes an outer water tank 51 and an inner water tank 52, and an insulation layer 53 is arranged between the outer water tank 51 and the inner water tank 52. The longitudinal section of the reserve water tank 5 is U-shaped and its fracture is rectangular. The outer water tank 51 is provided with a water inlet 54 connected to the inner water tank 52 at a position near the top of its left side, and the water inlet 54 is connected to the water outlet end of the previous U-shaped waterway pipe 6. A water outlet 55 connected to the inner water tank 52 is provided in the middle of the outer water tank 51 and near its bottom, and the water outlet is connected to the water inlet end of the next U-shaped waterway pipe 6. A normally closed top cover 56 is provided at the top of the left side of the reserve water tank 5 and a ventilation slide 57 is provided on the right side. A breathing port 58 is provided on the normally closed top cover 56, and a grate plate 59 located inside the reserve water tank 5 is provided below the ventilation slide 57. Specifically, the interlayer design of the reserve water tank 5 provides adequate insulation in winter, preventing the stored water from freezing and affecting water discharge and freezing damage to the reserve water tank 5. The U-shaped design of the reserve water tank 5 allows for a certain water potential difference between water volumes of equal size, facilitating water discharge. Furthermore, the provision of the breathing port 58 ensures the continuity of water inflow from the water inlet 54. The ventilation slide 57 can be manually opened in dry weather, utilizing the stored water to regulate the atmosphere around the building and provide a certain cooling effect. The grate plate 59 prevents significant evaporation of the stored water.

[0033] In order to ensure the series water storage effect of the upper and lower reserve water tanks 5, the U-shaped waterway pipe 6 provided by the present invention includes a first horizontal pipe 61 connected to the water outlet, and the reserve water pipe 7 is arranged on the first horizontal pipe 61. The end of the first horizontal pipe 61 away from the water outlet is provided with a first vertical pipe 63 through a first elbow 62, and the bottom of the first vertical pipe 63 is provided with a second horizontal pipe 65 through a second elbow 64. The end of the second horizontal pipe 65 is connected to the second vertical pipe 67 through a third elbow 66, and the end of the second vertical pipe 67 is provided with a third horizontal pipe 69 through a fourth elbow 68. The end of the third horizontal pipe 69 is provided with a plug 610, and the third horizontal pipe 69 is provided with a water inlet pipe 612 through a tee 611, and the water inlet pipe 612 is connected to the water inlet 54. In the roof drainage system 4, the rainwater main pipe 47 serves as a connecting pipe between the rainwater treatment downpipe 432 and the first reserve water tank 5. It extends from the roof wall toward the reserve water tank 5 until it is connected to the reserve water tank 5. The reserve water tank 5 is set outside the safety corridor of the green building or on the platform of each floor of the building. Its daily water storage does not use the water meter of individual users. The smart faucet of the reserve water pipe 7 is turned on and off by a smart key such as a water card on the property. The first horizontal pipe 61 is laid below the floor plate or in a dedicated groove starting from its installation node. It turns at the first elbow 62 and extends from the first vertical pipe 63 toward the next floor. Due to the relative positional relationship between the water inlet 54 and the water outlet of the reserve water tank 5, the waterway turns at the second elbow 64 and extends through the second horizontal pipe 65 for a distance equal to the projected distance between the water inlet 54 and the water outlet. It then turns again at the third elbow 66 and continues downward through the second vertical pipe 67. At the fourth elbow 68, it connects to the third horizontal pipe 69 and extends in the direction of the installation of the next reserve water tank 5. The U-shaped waterway pipe 6 is connected to the reserve water tank 5 via the water inlet pipe 612. The U-shaped waterway pipe 6 uses two parallel vertical pipes to complete the vertical extension, which can avoid the pipe being too long and affecting its installation and installation reliability. A plug 610 is used at the end of the third horizontal pipe 69 to allow for venting at appropriate times to ensure the flow efficiency within the U-shaped waterway pipe 6. Corresponding valves can be provided on the first horizontal pipe 61, the third horizontal pipe 69 and the water inlet pipe 612 to achieve the purpose of controlling the water flow, especially in terms of daily water use after the water replenishment action is stopped.

[0034] In order to facilitate the transfer of the reserve water tank 5, the present invention provides multiple pairs of lifting ears 510 at the U-shaped mouth of the reserve water tank 5. The lifting ears 510 include upper lifting ears and lower lifting ears. The lifting ears are convenient for lifting with a sling and can also serve as connection nodes for ropes, making it convenient for a single person to carry the empty reserve water tank 5 on his back and go up and down the stairs in a green building.

[0035] In order to prevent the reserve water tank 5 from directly contacting the building ground, the present invention provides a support frame 8 at the bottom of the reserve water tank 5. The support frame 8 is used to suspend the reserve water tank 5, which not only reduces water evaporation but also effectively protects its bottom surface from termites and frequent wear. Specifically, the support frame 8 provided by the present invention includes a pair of main beams 81, and the main beams 81 are provided with a sink 87 that matches the bottom of the reserve water tank 5. The two ends of the sink 87 match the bottom corners of the reserve water tank 5. A plurality of support beams 82 are provided between the main beams 81. The cross-section of the support beams 82 is rectangular and the two ends thereof are provided with tenons 83. The tenons 83 match the mortises provided on the main beams 81. The two ends of the main beams 81 are provided with a crutch leg 84 that is welded to the crutch leg 84. The crutch leg 84 bends and extends downward. A screw 85 is provided between the relatively distributed crutch legs 84, and a positioning nut 86 is provided at both ends of the screw 85. Among them, the main beam 81 and the crooked leg 84 provide the ground clearance of the reserve water tank 5, the screw 85 and the positioning nut 86 are used to control the distance between the front and rear main beams 81, and the support beam 82 and the tenon 83 always maintain a connection relationship with the main beam 81 before and after fine-tuning the distance between the two main beams 81. Its rectangular support surface directly supports the bottom surface of the reserve water tank 5, and is further limited by the sink 87, thereby ensuring the stability of the reserve water tank 5 on the support frame 8.

[0036] In order to increase the water flow rate of the rainwater treatment downpipe, the rainwater treatment downpipe 432 provided by the present invention includes a top pipe 432a, a main pipe 432b and a bottom pipe 432c. The top pipe 432a is an N-shaped structure for buffering the impact of rainwater. The width of the main pipe 432b is twice the width of the rainwater straight discharge downpipe 431 and is used to install the membrane filtration treatment core 45, thereby ensuring that the membrane filtration treatment core 45 has a sufficient cross-section and water flow time to treat rainwater, thereby ensuring the reasonable implementation of the rainwater storage process synchronized with the rainfall process.

[0037] Furthermore, the membrane filtration treatment core 45 provided by the present invention has a ring-shaped structure and its top is a closed end. The part of the membrane filtration treatment core 45 at the same height as the main pipe 432b constitutes a membrane shell. Rainwater enters the membrane shell from the top surface of the membrane filtration treatment core 45, and completes the concentration treatment from the outside of the membrane shell and the membrane filtration treatment core 45 toward its center. The concentrated clean water enters the rainwater main pipe 47 from the bottom pipe 432c, and the sewage after the concentration treatment of rainwater enters the rainwater straight drainage downpipe 431 from the inclined flow pipe 46. The inclined flow pipe 46 turns from high to low from the rainwater treatment downpipe 432 to the rainwater straight drainage downpipe 431, which can avoid the backflow of water in the rainwater straight drainage downpipe 431, and the water in the rainwater treatment downpipe 432 that exceeds the treatment load can directly enter the rainwater straight drainage downpipe 431 from the top inclined flow pipe 46 after reaching a certain height. Furthermore, the downspout 44 can lead water to the green area of ​​the community. When there is a lot of water stored at ordinary times, the water in the reserve water tank 5 can be directly used to irrigate the green area.

[0038] The above description is merely a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any person skilled in the art may utilize the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes for application in other fields. However, any simple modification, equivalent change, and modification of the above embodiments made in accordance with the technical essence of the present invention without departing from the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A green high-rise building water supply and drainage network, including a water supply network, a drainage network, a secondary pump room and a roof drainage system. The water supply network includes a main pipe, a riser and a branch pipe, characterized in that: The roof drainage system includes a hopper, an electric control valve is provided on the hopper, and two downpipes connected to the electric control valve are provided at the bottom of the hopper. The tops of the two downpipes are both N-shaped and connected to the hopper and their cross sections are both rectangular. The two downpipes are respectively a rainwater straight drainage downpipe and a rainwater treatment downpipe. The bottom of the rainwater straight drainage downpipe is a downspout. A membrane filtration treatment core is provided on the flow path of the rainwater treatment downpipe. An H-shaped oblique flow pipe connected to the rainwater straight drainage downpipe is provided above and near the bottom of the membrane filtration treatment core. The rainwater treatment downpipe is a filtration treatment core. A rainwater main pipe is provided at the bottom of the downpipe and is installed above the top three floors of the green high-rise building. The rainwater main pipe is connected to the riser and branch pipes. Both the rainwater main pipe and the riser are equipped with valves. A plurality of reserve water tanks are provided at the end of the rainwater main pipe. The plurality of reserve water tanks are arranged in series up and down through a plurality of sets of U-shaped water pipes and are respectively arranged on different floors. The U-shaped water pipes are provided with reserve water pipes for property cleaning water. The water outlet of the reserve water pipes is provided with a smart faucet. The lowest U-shaped water pipe is connected to the rainwater direct drainage downpipe; The reserve water tank is arranged above the 6th floor of the green building and a reserve water tank is arranged every other floor. No reserve water tank is arranged on the top two floors of the green building; the reserve water tank includes an outer water tank and an inner water tank, and an insulation layer is arranged between the outer water tank and the inner water tank. The longitudinal section of the reserve water tank is U-shaped and its fracture is rectangular. The outer water tank is provided with a water inlet connected to the inner water tank at a position near the top of the left side thereof, and the water inlet is connected to the water outlet end of the previous U-shaped waterway pipe. The middle of the outer water tank and near the bottom thereof is provided with a water outlet connected to the inner water tank, and the water outlet is connected to the water inlet end of the next U-shaped waterway pipe. A normally closed top cover is provided at the top of the left side of the reserve water tank and a ventilation sliding cover is provided on the right side. A breathing port is provided on the normally closed top cover, and a grate plate located inside the reserve water tank is provided below the ventilation sliding cover.

2. The green high-rise building water supply and drainage network according to claim 1 is characterized in that: The U-shaped waterway pipe includes a first horizontal pipe connected to the water outlet, the reserve water pipe is arranged on the first horizontal pipe, the end of the first horizontal pipe away from the water outlet is provided with a first vertical pipe through a first elbow, the bottom of the first vertical pipe is provided with a second horizontal pipe through a second elbow, the end of the second horizontal pipe is connected to the second vertical pipe through a third elbow, the end of the second vertical pipe is provided with a third horizontal pipe through a fourth elbow, the end of the third horizontal pipe is provided with a plug, and the third horizontal pipe is provided with a water inlet pipe through a tee, and the water inlet pipe is connected to the water inlet.

3. The green high-rise building water supply and drainage network according to claim 1, characterized in that: A plurality of pairs of lifting ears are provided at the U-shaped opening of the reserve water tank, and the lifting ears include upper lifting ears and lower lifting ears.

4. The green high-rise building water supply and drainage network according to any one of claims 1 to 3, characterized in that: A support frame is provided at the bottom of the preparation water tank, and the support frame includes a pair of main beams. The main beams are provided with a sink that cooperates with the bottom of the preparation water tank, and the two ends of the sink cooperate with the bottom corners of the preparation water tank. A plurality of support beams are provided between the main beams. The cross-section of the support beam is rectangular and tenons are provided at both ends. The tenons cooperate with mortems provided on the main beams. The two ends of the main beams are provided with crutch legs welded thereto as a whole. The crutch legs are bent and extended downward. A screw is provided between the relatively distributed crutch legs, and positioning nuts are provided at both ends of the screw.

5. The green high-rise building water supply and drainage network according to claim 1, characterized in that: The rainwater treatment downpipe includes a top pipe, a main pipe and a bottom pipe. The top pipe is an N-shaped structure. The width of the main pipe is twice the width of the rainwater straight drainage downpipe and is used to install a membrane filtration treatment core.

6. The green high-rise building water supply and drainage network according to claim 5, characterized in that: The membrane filtration treatment core has a ring-shaped structure and a closed end at the top. Rainwater is concentrated from the side of the membrane filtration treatment core toward its center and the concentrated clean water enters the rainwater main pipe from the bottom pipe. The sewage after the rainwater concentration treatment enters the rainwater straight drain downpipe from the inclined flow pipe.

7. A water-saving and energy-saving operation method for a green high-rise building water supply and drainage network, characterized in that: It includes water saving methods in rainy season and water saving methods in non-rainy season. The specific methods are as follows: Water conservation measures during the rainy season: The roof drainage system uses electronically controlled valves to regulate the flow of rainwater from the direct drainage downpipes and the rainwater treatment downpipes during the rainy season. A portion of the rainwater is treated in the rainwater treatment downpipes and then stored in reserve water tanks on different floors in sequence due to the high potential difference and without the action of pumps. The reserve water tanks provide water for property cleaning during the rainy season and the week after the rainy season. Water saving method in the non-rainy season: the water supply network provides clean water to the rainwater main through the secondary pump room. The secondary pump room supplies water to the rainwater main from 2 to 5 in the morning. During the water supply period, intermittent water supply is adopted, with an intermittent time of 30 to 45 minutes, and the flow rate is controlled to be no more than 26m³ / h. The clean water is stored in different reserve water tanks from the rainwater main, and the reserve water tanks provide water for property cleaning work.

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