Rainwater collecting and recycling system for wood structure building

Abstract

The invention discloses a timberwork building rainwater collection and cyclic utilization system, and relates to the technical field of rainwater collection and cyclic utilization. The wood structure building rainwater collection and cyclic utilization system comprises a rainwater collection unit, a rainwater storage unit, a rainwater purification unit and a rainwater cyclic utilization unit, and the rainwater collection unit comprises a roof collection system, a ground collection system and a rainwater transmission unit; the rainwater storage unit comprises an underground reservoir and an overground water storage barrel; the rainwater purification unit comprises a primary precipitation filter tank, a biological purification tank and an activated carbon adsorption tank. The rainwater collecting device is made of wood or materials good in compatibility with a wood structure, damage to the wood structure due to electrochemical corrosion is effectively avoided, large-scale transformation of the wood structure is not needed during installation, and therefore the structural stability of a building is guaranteed; and the whole structure of the building cannot be weakened or damaged due to the installation of the rainwater collecting system.

Description

Technical Field

[0001] The invention relates to the technical field of rainwater collection and recycling, and in particular to a rainwater collection and recycling system for a wooden structure building. Background Art

[0002] As the global water shortage problem becomes increasingly serious and people pay more attention to the concept of sustainable development, rainwater collection and recycling has gradually become a key research direction in the field of architecture. For wooden structures, their unique structure and material properties make the design of rainwater collection and recycling systems face special challenges.

[0003] There are many problems with traditional rainwater collection systems in wooden structure buildings. On the one hand, existing rainwater collection devices are often poorly compatible with wooden structures. For example, metal collection pipes and devices may damage the wooden structure due to electrochemical corrosion, or the wooden structure may need to be over-modified during the installation process, affecting the overall structural stability and aesthetics of the building. On the other hand, the rainwater purification process fails to fully consider the environmental factors surrounding wooden structures, such as fallen leaves, pollen and other impurities, which makes conventional purification equipment easy to clog and the purification effect is not ideal. In addition, in terms of rainwater recycling, there is a lack of refined design for different water needs inside wooden structures (such as landscape water, domestic miscellaneous water, etc.), which makes rainwater resources not efficiently utilized. Summary of the invention

[0004] The purpose of the present invention is to provide a rainwater collection and recycling system for a wooden structure building, which solves the technical problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a rainwater collection and recycling system for a wooden structure building, comprising a rainwater collection unit, a rainwater storage unit, a rainwater purification unit, and a rainwater recycling unit, wherein the rainwater collection unit comprises a roof collection system, a ground collection system, and a rainwater transmission unit:

[0006] Roof collection system: Rainwater collection tanks made of polymer materials with good compatibility with wood structures are used. The collection tanks are customized according to the shape of the roof of the wood structure building, and are equipped with an automatic cleaning stainless steel filter with a pore size of 2-5mm. The bottom of the collection tank is connected to the rainwater transmission pipeline through a flexible connecting pipe made of corrosion-resistant rubber.

[0007] Ground collection system: A rainwater collection ditch with a wooden frame is set up on the ground around the wooden structure. The surface of the collection ditch is covered with a wooden hollow cover. The bottom of the collection ditch is inclined towards the drain. The drain is connected to the rainwater transmission pipeline. The collection ditch is kept at least 50cm away from the foundation of the wooden structure and isolated with a waterproof geotextile.

[0008] Rainwater transmission unit: A corrosion-resistant, smooth-walled polyvinyl chloride (PVC) pipe is used as the rainwater transmission pipe. The pipe diameter is 50-150mm. It is fixed by a wooden or plastic bracket and connected by a rubber sealing ring to ensure sealing. A drain valve is provided at the low point of the pipe.

[0009] The rainwater storage unit includes an underground water storage tank and an above-ground water storage barrel;

[0010] The rainwater purification unit includes a primary sedimentation and filtration tank, a biological purification tank, and an activated carbon adsorption tank;

[0011] Primary sedimentation and filtration tank: The primary sedimentation and filtration tank adopts a brick-concrete structure, with multiple baffles inside, a mud discharge pipe at the bottom of the tank, and a fiber ball filter with a filtration accuracy of 10-20μm at the outlet;

[0012] Biological purification pool: a biological purification pool planted with aquatic plants such as calamus and canna occupying 40%-60% of the surface area and containing microbial flora, with an aeration device at the bottom;

[0013] Activated carbon adsorption tank: an activated carbon adsorption tank filled with granular activated carbon with an iodine value of not less than 800 mg / g, in which rainwater stays for not less than 30 minutes;

[0014] The rainwater recycling unit includes a landscape irrigation system, a toilet flushing system inside the building, and a cleaning water system outside the building.

[0015] Preferably, the underground water storage tank adopts a reinforced concrete structure and is coated with a waterproof coating. An inspection port and a ventilation pipe are provided on the top. The outlet of the ventilation pipe is more than 1m above the ground and has an insect-proof net. A liquid level sensor is provided inside.

[0016] The above-ground water storage barrel is an above-ground water storage barrel with a wooden shell enclosing a stainless steel inner tank, and is equipped with a liquid level sensor and an overflow pipe.

[0017] Preferably, the landscape irrigation system adopts an intelligent control method and adjusts irrigation according to soil moisture sensors and weather forecast information. The sprinklers adopt drip irrigation or micro-sprinkler irrigation sprinklers, and the purified rainwater is transported to the landscape irrigation system.

[0018] The toilet tank in the toilet flushing system in the building is connected to the municipal water supply system by an intelligent switching device, the pipeline is corrosion-resistant PVC pipeline, the valve is a ceramic valve core valve, and the purified rainwater is transported to the toilet flushing system in the building;

[0019] The external clean water system of the building is used for cleaning water of external facilities such as the building's exterior walls, doors and windows, and the purified rainwater is transported to the external clean water system of the building.

[0020] Preferably, the planting area of ​​aquatic plants in the biological purification pond accounts for 50% of the surface area of ​​the biological purification pond.

[0021] Preferably, the iodine value of the activated carbon in the activated carbon adsorption tank is 900 mg / g.

[0022] Preferably, the soil moisture sensor of the landscape irrigation system has an accuracy of ±3%.

[0023] Preferably, the thickness of the wooden outer shell of the above-ground water storage barrel is 3-5 cm, and the thickness of the stainless steel inner shell is 1-1.5 mm.

[0024] Preferably, the aeration device of the biological purification pool has a power of 30-80W, and aeration is performed for 4-6 hours per day.

[0025] Preferably, the reinforced concrete wall thickness of the underground water storage tank is 20-30 cm, and the thickness of the internal waterproof coating is 2-3 mm.

[0026] Compared with the related art, the rainwater collection and recycling system for wooden structure buildings provided by the present invention has the following beneficial effects:

[0027] 1. Good adaptability to wood structures: Rainwater collection devices are made of wood or materials that are compatible with wood structures. For example, the roof collection system uses rainwater collection troughs made of wood or high-density polyethylene, and the ground collection system uses wooden frame collection grooves and wooden hollow cover plates. These materials effectively avoid damage to the wood structure due to electrochemical corrosion. There is no need for large-scale modification of the wood structure during installation, thereby ensuring the structural stability of the building and preventing the overall structure of the building from being weakened or damaged by the installation of the rainwater collection system.

[0028] 2. Efficient rainwater purification effect: A multi-stage purification process combining primary sedimentation filtration, biological purification and activated carbon adsorption is adopted. Through this series of purification steps, various impurities, nutrients and pollutants in rainwater can be effectively removed, ensuring that the quality of recycled rainwater meets the requirements of different water use scenarios (such as landscape irrigation, flushing toilets in buildings, cleaning outside buildings, etc.), greatly improving the utilization value of rainwater resources, so that rainwater that might have been wasted can be reasonably utilized after purification, reducing dependence on traditional water resources.

[0029] 3. Refined recycling design: Multiple recycling systems are designed according to the different water demand inside and outside the wooden structure building. The refined design for different needs and combined with intelligent control technology have achieved efficient and accurate utilization of rainwater resources, comprehensively reducing the dependence on traditional water resources during building operation, thereby reducing the operating cost of the building. It has significant advantages in both water resource conservation and economic cost control. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The present invention is a flow chart of rainwater collection and recycling in wooden structure buildings. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] Embodiment 1:

[0033] See also Figure 1 The present invention provides a technical solution: a rainwater collection and recycling system for a wooden structure building, including a rainwater collection unit, a rainwater storage unit, a rainwater purification unit, and a rainwater recycling unit. The rainwater collection unit includes a roof collection system, a ground collection system, and a rainwater transmission unit:

[0034] Roof collection system: Rainwater collection tanks made of polymer materials with good compatibility with wood structures are used. The collection tanks are customized according to the shape of the roof of the wood structure building, and are equipped with an automatic cleaning stainless steel filter with a pore size of 2-5mm. The bottom of the collection tank is connected to the rainwater transmission pipeline through a flexible connecting pipe made of corrosion-resistant rubber.

[0035] Ground collection system: A rainwater collection ditch with a wooden frame is set up on the ground around the wooden structure. The surface of the collection ditch is covered with a wooden hollow cover. The bottom of the collection ditch is inclined towards the drain. The drain is connected to the rainwater transmission pipeline. The collection ditch is kept at least 50cm away from the foundation of the wooden structure and isolated with a waterproof geotextile.

[0036] Rainwater transmission unit: corrosion-resistant, smooth-walled polyvinyl chloride (PVC) pipes are used as rainwater transmission pipes. The pipe diameter is 50-150mm. It is fixed by a wooden or plastic bracket and connected by a rubber sealing ring to ensure sealing. A drain valve is installed at the low point of the pipe.

[0037] In this embodiment, a roof collection system and a ground collection system are used to collect rainwater in all directions. The roof collection trough is made of a polymer material with good compatibility with wooden structures, which can avoid damage to wooden structures due to chemical reactions between materials (such as electrochemical corrosion, etc.).

[0038] The rainwater transmission unit uses corrosion-resistant, smooth-walled polyvinyl chloride (PVC) pipes as rainwater transmission pipes. Its corrosion resistance can resist the erosion of rainwater and corrosive substances that may exist in the soil. The good sealing performance of rubber can effectively prevent rainwater from leaking at the pipe joints, ensuring the sealing of the entire rainwater transmission pipe system. A drain valve is set at the low point of the pipe to facilitate the complete drainage of the accumulated water in the pipe during maintenance, especially in winter. It can effectively prevent the freezing and cracking of the pipe due to the expansion of the frozen water volume, protect the integrity of the pipe, extend the service life of the pipe, and reduce the maintenance cost caused by pipe damage and the impact on the operation of the entire rainwater collection and recycling system.

[0039] Embodiment 2:

[0040] See also Figure 1 As shown, based on Example 1, the present invention provides a technical solution: the rainwater storage unit includes an underground water storage tank and an above-ground water storage barrel;

[0041] The underground water storage tank adopts a reinforced concrete structure and is coated with a waterproof coating. There is an inspection port and a ventilation pipe on the top. The outlet of the ventilation pipe is more than 1m above the ground and has an insect-proof net. There is a liquid level sensor inside.

[0042] The above-ground water storage tank is an above-ground water storage tank with a wooden shell wrapped around a stainless steel liner and is equipped with a liquid level sensor and an overflow pipe.

[0043] In this implementation scheme, a reinforced concrete structure is used to construct the underground water reservoir, which gives it excellent structural strength and stability. The waterproof coating is applied to further enhance the waterproof performance of the water reservoir. The inspection port on the top provides a convenient passage for daily inspection, cleaning and maintenance of the water reservoir. The setting of the ventilation pipe ensures the circulation of air inside the water reservoir with the outside world, avoiding abnormal air pressure in the pool or accumulation of harmful gases due to poor air circulation. The internal liquid level sensor can monitor the water level changes of rainwater in the water reservoir in real time. The setting of the overflow pipe further ensures that the water storage barrel will not overflow due to excessive rainwater.

[0044] Embodiment 3:

[0045] See also Figure 1 As shown, based on Example 1 and Example 2, the present invention provides a technical solution: the rainwater purification unit includes a primary sedimentation and filtration tank, a biological purification tank, and an activated carbon adsorption tank;

[0046] Primary sedimentation and filtration tank: The primary sedimentation and filtration tank adopts a brick-concrete structure, with multiple baffles inside, a mud discharge pipe at the bottom of the tank, and a fiber ball filter with a filtration accuracy of 10-20μm at the outlet;

[0047] Biological purification pool: a biological purification pool planted with aquatic plants such as calamus and canna occupying 40%-60% of the surface area and containing microbial flora, with an aeration device at the bottom;

[0048] Activated carbon adsorption tank: An activated carbon adsorption tank filled with granular activated carbon with an iodine value of not less than 800 mg / g, in which rainwater stays for not less than 30 minutes.

[0049] In this implementation, multiple purification methods such as primary sedimentation filtration tank, biological purification tank, activated carbon adsorption tank are adopted to achieve better purification effect.

[0050] Embodiment 4:

[0051] See also Figure 1 As shown, based on Example 1, Example 2 and Example 3, the present invention provides a technical solution: the rainwater recycling unit includes a landscape irrigation system, a toilet flushing system inside the building, and a cleaning water system outside the building.

[0052] The landscape irrigation system uses intelligent control and adjusts irrigation based on soil moisture sensors and weather forecast information. The sprinklers use drip irrigation or micro-sprinklers, and the purified rainwater is transported to the landscape irrigation system.

[0053] In the building's flushing system, the flushing water tank is connected to the municipal water supply system using an intelligent switching device. The pipes are corrosion-resistant PVC pipes, and the valves are ceramic valve core valves. The purified rainwater is transported to the building's flushing system.

[0054] The external clean water system of the building is used for cleaning water of external facilities such as building exterior walls, doors and windows. The purified rainwater is transported to the external clean water system of the building.

[0055] In this implementation, the purified rainwater is utilized in a variety of ways, including landscape irrigation systems, toilet flushing systems within buildings, and clean water systems outside buildings, meeting a variety of usage needs.

[0056] Among them, the planting area of ​​aquatic plants in the biological purification pool accounts for 50% of the surface area of ​​the biological purification pool.

[0057] In this embodiment, when the planting area of ​​aquatic plants reaches 50% of the surface area of ​​the biological purification pool, sufficient root surface area can be provided for adsorbing and absorbing nutrients such as nitrogen and phosphorus in rainwater.

[0058] Among them, the iodine value of the activated carbon in the activated carbon adsorption pool is 900 mg / g.

[0059] In this embodiment, the iodine value reaches 900 mg / g, which means that the activated carbon has a strong adsorption capacity and has an excellent removal effect on various trace pollutants remaining in rainwater.

[0060] Among them, the soil moisture sensor accuracy of the landscape irrigation system is ±3%.

[0061] In this embodiment, the soil moisture sensor can very accurately sense the moisture content in the soil. The sensor can accurately detect whether irrigation is needed and stop irrigation in time to prevent over-irrigation.

[0062] Among them, the thickness of the wooden outer shell of the ground water storage barrel is 3-5cm, and the thickness of the stainless steel inner liner is 1-1.5mm.

[0063] Among them, the aeration device power of the biological purification pool is 30-80W, and aeration is 4-6 hours per day.

[0064] Among them, the reinforced concrete wall thickness of the underground water tank is 20-30cm, and the thickness of the internal waterproof coating is 2-3mm.

[0065] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rainwater collection and recycling system for a wooden structure building, comprising a rainwater collection unit, a rainwater storage unit, a rainwater purification unit, and a rainwater recycling unit, characterized in that: The rainwater collection unit includes a roof collection system, a ground collection system, and a rainwater transmission unit: Roof collection system: Rainwater collection tanks made of polymer materials with good compatibility with wood structures are used. The collection tanks are customized according to the shape of the roof of the wood structure building, and are equipped with an automatic cleaning stainless steel filter with a pore size of 2-5mm. The bottom of the collection tank is connected to the rainwater transmission pipeline through a flexible connecting pipe made of corrosion-resistant rubber. Ground collection system: A rainwater collection ditch with a wooden frame is set up on the ground around the wooden structure. The surface of the collection ditch is covered with a wooden hollow cover. The bottom of the collection ditch is inclined towards the drain. The drain is connected to the rainwater transmission pipeline. The collection ditch is kept at least 50cm away from the foundation of the wooden structure and isolated with a waterproof geotextile. Rainwater transmission unit: A corrosion-resistant, smooth-walled polyvinyl chloride (PVC) pipe is used as the rainwater transmission pipe. The pipe diameter is 50-150mm. It is fixed by a wooden or plastic bracket and connected by a rubber sealing ring to ensure sealing. A drain valve is provided at the low point of the pipe. The rainwater storage unit includes an underground water storage tank and an above-ground water storage barrel; The rainwater purification unit includes a primary sedimentation and filtration tank, a biological purification tank, and an activated carbon adsorption tank; Primary sedimentation and filtration tank: The primary sedimentation and filtration tank adopts a brick-concrete structure, with multiple baffles inside, a mud discharge pipe at the bottom of the tank, and a fiber ball filter with a filtration accuracy of 10-20μm at the outlet; Biological purification pool: a biological purification pool planted with aquatic plants such as calamus and canna occupying 40%-60% of the surface area and containing microbial flora, with an aeration device at the bottom; Activated carbon adsorption tank: an activated carbon adsorption tank filled with granular activated carbon with an iodine value of not less than 800 mg / g, in which rainwater stays for not less than 30 minutes; The rainwater recycling unit includes a landscape irrigation system, a toilet flushing system inside the building, and a cleaning water system outside the building.

2. A rainwater collection and recycling system for a wooden structure building according to claim 1, characterized in that: The underground water storage tank adopts a reinforced concrete structure and is coated with a waterproof coating. An inspection port and a ventilation pipe are provided on the top. The outlet of the ventilation pipe is more than 1m above the ground and has an insect-proof net. A liquid level sensor is provided inside. The above-ground water storage barrel is an above-ground water storage barrel with a wooden shell enclosing a stainless steel inner tank, and is equipped with a liquid level sensor and an overflow pipe.

3. A rainwater collection and recycling system for a wooden structure building according to claim 1, characterized in that: The landscape irrigation system adopts intelligent control mode and adjusts irrigation according to soil moisture sensor and weather forecast information. The sprinkler adopts drip irrigation or micro sprinkler, and the purified rainwater is transported to the landscape irrigation system. The toilet tank in the toilet flushing system in the building is connected to the municipal water supply system by an intelligent switching device, the pipeline is corrosion-resistant PVC pipeline, the valve is a ceramic valve core valve, and the purified rainwater is transported to the toilet flushing system in the building; The external clean water system of the building is used for cleaning water of external facilities such as the building's exterior walls, doors and windows, and the purified rainwater is transported to the external clean water system of the building.

4. The rainwater collection and recycling system for wooden structure buildings according to claim 1 is characterized by: The planting area of ​​aquatic plants in the biological purification pool accounts for 50% of the surface area of ​​the biological purification pool.

5. The rainwater collection and recycling system for wooden structure buildings according to claim 1 is characterized by: The iodine value of the activated carbon in the activated carbon adsorption tank is 900 mg / g.

6. A rainwater collection and recycling system for wooden structure buildings according to claim 1, characterized in that: The soil moisture sensor of the landscape irrigation system has an accuracy of ±3%.

7. The rainwater collection and recycling system for wooden structure buildings according to claim 1 is characterized by: The thickness of the wooden shell of the above-ground water storage barrel is 3-5 cm, and the thickness of the stainless steel inner liner is 1-1.5 mm.

8. The rainwater collection and recycling system for wooden structure buildings according to claim 1 is characterized by: The aeration device of the biological purification pool has a power of 30-80W and aeration is performed for 4-6 hours per day.

9. The rainwater collection and recycling system for wooden structure buildings according to claim 1 is characterized by: The reinforced concrete wall thickness of the underground water storage tank is 20-30 cm, and the thickness of the internal waterproof coating is 2-3 mm.

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