CN216041466U - Rainwater and grey water collecting and recycling system applied to rural residences - Google Patents
Rainwater and grey water collecting and recycling system applied to rural residences Download PDFInfo
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- CN216041466U CN216041466U CN202122695282.XU CN202122695282U CN216041466U CN 216041466 U CN216041466 U CN 216041466U CN 202122695282 U CN202122695282 U CN 202122695282U CN 216041466 U CN216041466 U CN 216041466U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
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Abstract
The utility model discloses a rainwater and grey water collecting and recycling system applied to rural residences, and belongs to the field of water resource protection and utilization. The system comprises a roof rainwater collecting part, an ash water collecting part and a rainwater and ash water recycling part, wherein the rainwater collecting part comprises a slope type water collecting tank and a rainwater collecting pipe; the grey water collecting part comprises a shower, wash and washing machine drain collecting pipe; the rainwater and grey water recycling part comprises a water storage tank and a drain pipe. The system collects rainwater and grey water for reuse, recovers rainwater and grey water when rainwater exists, collects grey water when no rainwater exists, ensures stable supply of reuse water, avoids the problem that the reuse system is idle due to insufficient rainwater, is practical in the whole process, has no power loss basically, is favorable for improving the environment protection and water resource saving consciousness of rural residents, and builds a new rural area with excellent ecology and contributes to the construction of rural happy engineering.
Description
Technical Field
The utility model belongs to the field of water resource protection and utilization, and particularly relates to a rainwater and grey water collecting and recycling system applied to rural residences.
Background
Under the guidance of the idea of open source throttling, rainwater is taken as a sustainable and renewable water resource, and pollutants in the rainwater are few, so that the rainwater is widely used in water-deficient areas as early as thousands of years ago. Nowadays, the rainwater collection and reuse strength is not large in regions with abundant rainwater in China, natural rainwater resources are wasted, if a set of rainwater collection and backflow device is used for flushing toilets, irrigating greenbelts and washing vehicles after simple filtration and purification treatment, tap water resources can be saved, economic benefits can be maximized, and the rainwater collection and backflow device has great significance for protecting water resources and building new rural areas where water resources can be developed sustainably.
The patent of Chinese utility model with the publication number of CN203795515U discloses a resource-saving rainwater and recycling system applied to single-family houses, which comprises a roof rainwater collecting part and a rainwater recycling part, wherein the roof rainwater collecting part comprises a gutter, the rainwater recycling part comprises a water storage tank and a water collecting goblet, rainwater flowing through a roof is conveyed to the water storage tank to be stored in rainy days, and when a householder needs to flush a toilet, the toilet is flushed by rainwater; redundant rainwater is stored in the water collecting goblet, and secondary recycling of the rainwater is achieved. However, rainwater cannot be stably guaranteed, and the volumes of the water storage tank and the water collecting goblet are limited, so that the long-time use cannot be met, and tap water is still needed to flush the closestool most of the time.
The grey water generated in daily life in rural areas of China is directly discharged into nearby water bodies, has certain pollution capacity to water environment, and is used for flushing toilets, irrigating greenbelts and washing cars with collected rainwater through simple purification treatment for shower water, washing water and washing clothes, so that the method is beneficial to improving the landscape environment in rural areas, improving the water quality condition of nearby water bodies, effectively saving water resources, realizing energy conservation and emission reduction of individual houses in rural areas, and being beneficial to sustainable development of rural ecology.
Disclosure of Invention
1. Objects of the utility model
The utility model aims to provide a rainwater and grey water collecting and recycling system applied to rural residences, which collects and recycles rainwater and grey water, can stably supply recycled water, is favorable for improving the environmental awareness of saving water resources of people in new rural areas, is favorable for developing and constructing ecological intensive new rural areas in the happy rural areas, uses natural gravity in the whole process, does not need to use extra power, has high economic benefit and saves electric power and energy.
2. Technical scheme
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a rainwater and grey water collecting and recycling system applied to rural residences, which comprises a roof rainwater collecting part, an indoor grey water collecting part and a rainwater and grey water recycling part, wherein the roof rainwater collecting part is connected with the roof rainwater collecting part; the roof rainwater collecting part comprises water collecting grooves, the water collecting grooves are arranged on two sides of a roof and are parallel to eave, one end of one side of the water collecting groove is connected with a first rainwater collecting pipe, one end of the other side of the water collecting groove is connected with a second rainwater collecting pipe, and rainwater is collected through the water collecting grooves and flows into the rainwater collecting pipes; the indoor grey water collecting part comprises a grey water collecting pipe, the grey water collecting pipe is connected with a grey water outlet to collect domestic drainage, one end of the grey water collecting pipe is connected with the other end of the second rainwater collecting pipe, the other end of the grey water collecting pipe is connected with the first rainwater collecting pipe, so that the grey water is converged with rainwater in the first rainwater collecting pipe, and a rainwater and grey water converging collecting pipe is formed after the grey water and the rainwater are connected; the utility model discloses a water storage tank, including rainwater buck retrieval and utilization part, the water pipe of rainwater buck retrieval and utilization part includes water storage tank and retrieval and utilization, the upper end and the rainwater buck confluence collecting tube of water storage tank are connected, the bottom and the drain pipe one end of water storage tank are connected, the inlet tube of closestool is connected to the other end of drain pipe, one side that the house was kept away from to the water storage tank is equipped with overflow mouth and atmospheric valve, water storage tank drainage pipe connection closestool inlet tube constitutes rainwater retrieval and utilization structure once, realize with the help of the retrieval and utilization of rainwater and buck that the closestool erodees and need not basically to use the running water resource, practice thrift the valuable water resource, economy and practicability, energy-concerving and environment-protective, house one side is kept away from to the atmospheric valve of water storage tank is located the bottom of water storage tank, can connect corresponding equipment and wash car or water farmhouse flower garden, make things convenient for the secondary retrieval and utilization of rainwater, economic benefits maximize.
Preferably, the water collecting tank is a slope type water collecting tank, one end connected with the rainwater collecting pipe is a slope bottom, the slope bottom gradually rises towards the slope of the other end, the slope type water collecting tank quickly collects rainwater received on the roof by utilizing gravity formed by a certain slope, and accidents caused by excessive bearing of the roof due to heavy rain are avoided.
Preferably, the width of the slope type water collecting tank gradually narrows from the slope bottom to the slope top.
Preferably, the slope of the slope type water collecting tank is 5-15 degrees.
Preferably, the grey water confluence collecting pipe is respectively connected with one or more of a shower floor drain, a wash stand water outlet and a washing machine water outlet.
Preferably, the iron leakage net is installed at the connecting inlet of the first rainwater collecting pipe and the slope type water collecting tank, the iron leakage net is installed at the connecting position of the slope type water collecting tank and the first rainwater collecting pipe and the connecting position of the second rainwater collecting pipe, the iron leakage net can effectively filter impurities such as leaves and massive solid particles contained in rainwater, the rainwater collecting pipeline can be effectively prevented from being blocked, the collected rainwater is guaranteed to have certain cleanliness, the pressure of subsequent treatment is reduced, and the mesh size of the iron leakage net can be customized according to local rural conditions.
Preferably, the both ends design of iron strainer have the tongs and conveniently regularly clear up the leaf and other great solid particles that intercept, avoid impurity to pile up and then influence the efficiency that the rainwater was collected.
Preferably, a one-way valve with a rainwater end flowing to the grey water end in one way is arranged at the joint of the grey water collecting pipe and the second rainwater collecting pipe, so that rainwater flows to the grey water in one way, the grey water is prevented from flowing back, and the grey water collecting pipe is flushed by rainwater.
Preferably, the upper end of the water storage tank is provided with a cover, so that the floating leaves and other impurities can be prevented from entering the water storage tank, and the cleaning is convenient.
Preferably, the lid is removable or openable. Further, the lid is connected to the water storage tank by a hinge.
Preferably, the water storage tank is provided with a water inlet and a water outlet, the water inlet is arranged at the upper end of the water storage tank, the water inlet is connected with the rainwater and ash water converging and collecting pipe, the water outlet is positioned at the bottom end of the water storage tank, and the water outlet is connected with a water discharging pipe.
Preferably, the inside upper strata of water storage tank is equipped with simple and easy grit filter equipment, can follow the water storage tank and wholly dismantle to take out and be convenient for change the filter material.
Preferably, the sand particle size of the sand filter device is gradually increased from bottom to top.
Preferably, the sand filter device is paved with cobbles on the uppermost layer.
Preferably, the bottom end of the water storage tank is higher than a water inlet pipe of the toilet, the gravity is utilized to guide rainwater and grey water to flush the toilet, other power equipment, mechanical equipment and electric power resources are not needed, and energy is saved.
Preferably, the water inlet pipe of the toilet is provided with a three-way electromagnetic valve, the drain pipe of the water storage tank is connected with the three-way electromagnetic valve, the treated rainwater and the treated grey water are guided into a buffer water tank of the toilet, and the buffer water tank is positioned at the tail end of the water inlet pipe of the toilet and above the toilet. The three-way electromagnetic valve can control the flow direction of rainwater, the three-way electromagnetic valve can be switched to be connected with a tap water pipe under the conditions that rainwater does not exist in fine days and the ash water is insufficient, tap water is used for flushing the closestool, the three-way electromagnetic valve is connected with a water drainage pipe on the premise that the water storage tank has enough water, collected rainwater and collected ash water are used for flushing the closestool, and the buffer water tank can prevent the rainwater and the ash water in the water storage tank from forming negative pressure backflow with the closestool.
Preferably, a wall-mounted filter bag is arranged below the simple sand filter device in the water storage tank, and the filter bag is filled with replaceable activated carbon to adsorb impurities and remove residual pollutants.
Preferably, the wall-mounted filter bags are 4 in number and are distributed around each filter bag by 1, so that impurities are removed more uniformly.
Preferably, the overflow mouth of above-mentioned water storage tank is located simple and easy grit filter equipment under, and effectual rainwater and the grey water of avoiding overflow to simple and easy grit filter equipment on to avoid the impurity of simple and easy grit filter layer to be washed out and influence quality of water, avoid rainwater and grey water to overflow water storage tank and influence the surrounding environment sense organ.
3. Advantageous effects
The utility model has the beneficial effects that:
(1) the rainwater and grey water collecting and recycling system applied to rural residents collects rainwater and grey water for recycling, recovers rainwater and grey water simultaneously when rainwater exists, collects grey water when no rainwater exists, ensures stable supply of recycled water, avoids the problem that the recycling system is idle due to insufficient rainwater, and is beneficial to implementation of the village joy strategy because the system adopts gravity flow in the whole process without providing extra electric power, saves energy and protects environment, and can improve the environmental awareness and water resource awareness of new rural residents.
(2) According to the rainwater and grey water collecting and recycling system applied to rural residences, the designed slope type water collecting tank can better cope with heavy rain weather by means of the gravity effect caused by a certain slope, rainwater is collected more efficiently, and the phenomenon that the roof is over-stressed due to accumulated water is avoided; the iron leakage net can effectively filter leaves and larger solid particles contained in the rainwater, so that the rainwater collecting pipe is prevented from being blocked; the one-way valve is arranged at the connection part of the second rainwater collecting pipe and the ash water collecting pipe, so that water flow can only flow from the rainwater end to the ash water end, the pipeline material is saved, the inner wall of the ash water collecting pipe can be effectively washed in rainy days, and the service life is prolonged; the water storage tank is connected with the water inlet pipe of the closestool to form a one-time recycling structure of rainwater and grey water, so that precious water resources are saved, gravity flow is used in the whole process, and the energy-saving and environment-friendly effects are achieved. The air release valve is connected with related equipment so as to facilitate the washing of the flower nursery nearby for riding and watering, thus forming a secondary rainwater and grey water recycling structure.
(3) The rainwater and grey water collecting and recycling system applied to rural residences provided by the utility model has high practicability and feasibility, along with the proposal of a rural joyful strategy, the construction of rural houses gradually presents the characteristics of standardization, normalization, singularization, low-rise and the like, most of the houses have hard slope roofs, the rainwater can be collected and collected, and due to the smooth slope surfaces of the roofs, the collected rainwater impurities and sand content are low, the turbidity is low, the rainwater and grey water collecting and recycling system can be used as a miscellaneous water source for daily life after simple purification treatment, the energy is saved, the environment is protected, the rainwater collecting and grey water recycling system completely depends on gravity to collect and transmit rainwater, the consumption of power resources is almost negligible, the overall maintenance cost is low, the economic benefit is high, the facility is simple, and parts are convenient to replace, the cost is low, and the economic benefit is high.
Drawings
FIG. 1 is a schematic diagram of a front structure provided by a rainwater and grey water collecting and recycling system applied to rural residences in the utility model;
FIG. 2 is a schematic view of a water storage tank provided in a rainwater and grey water collecting and recycling system for rural residences according to the present invention;
FIG. 3 is a schematic view of a roof structure provided with a rainwater and grey water collecting and recycling system applied to rural residences according to the present invention;
FIG. 4 is a schematic view of a slope type water collecting tank provided by the rainwater and grey water collecting and recycling system applied to rural residences;
in the figure: 1 is a slope type water collecting tank; 2 is an iron leakage net; 3 is a first rainwater collecting pipe; 4 is a second rainwater collecting pipe; 5 is a grey water collecting pipe; 6 is a one-way valve; 7 is a water storage tank; 8 is a connecting pipe; 9 is a water inlet; 10 is a cover; 11 is a simple sand filtering device; 12 is a wall-mounted filter bag; 13 is a water outlet; 14 is a drain pipe; 15 is a three-way electromagnetic valve; 16 is a water inlet pipe of the closestool; 17 is a tap water inlet; 18 is a buffer water tank; 19 is an overflow port; and 20 is an emptying valve.
Detailed Description
The present invention will be fully described in detail with reference to the accompanying drawings, wherein the specific embodiments are shown and described in detail, for the purpose of illustration and not for the purpose of limitation, and all changes, equivalents and modifications which come within the spirit and scope of the utility model are therefore intended to be embraced therein.
The embodiment provides a rainwater and grey water collecting and recycling system applied to rural residences, which comprises a roof rainwater collecting part, an indoor grey water collecting part and a rainwater and grey water recycling part, as shown in fig. 1 to 4.
Roof rainwater collection part is including slope formula water catch bowl 1, and slope formula water catch bowl 1 is located the roof both sides, and is parallel with the eave, and the slope is 10, and slope formula water catch bowl 1 leads the rainwater on roof fast and assembles, and whole gravity that relies on the slope to produce, the ponding that heavy rain weather caused is avoided to quick collection rainwater. The one end of slope formula water catch bowl 1 wherein one side water catch bowl is connected first rainwater collecting pipe 3, and the one end of opposite side water catch bowl is connected second rainwater collecting pipe 4, and first rainwater collecting pipe 3 and second rainwater collecting pipe 4 all connect in the bottom of slope formula water catch bowl 1, and through first rainwater collecting pipe 3 and second rainwater collecting pipe 4, the rainwater can flow in the slope formula water catch bowl 1. At slope formula water catch bowl 1 and first rainwater collecting pipe 3, second rainwater collecting pipe 4's junction, at the entrance installation iron of first rainwater collecting pipe 3 and second rainwater collecting pipe 4 and leak net 2, iron leaks net 2 can effectual filtration and floats leaf and other great solid particle and avoid blockking up first rainwater collecting pipe 3 and second rainwater collecting pipe 4, and the rainwater after filtering has certain cleanliness, brings certain facility for subsequent processing. Furthermore, the tongs that iron leaked the net both ends design are convenient for clear up the leaf and other debris of interception, avoid causing debris to pile up the collection that influences the rainwater.
The indoor grey water collecting part comprises a grey water collecting pipe 5, the grey water collecting pipe 5 is connected with shower water in daily life, washing water and a water outlet of a washing machine, collecting and converging are carried out, a second rainwater collecting pipe 4 is connected with the grey water collecting pipe 5 through a connecting pipe 8, a one-way valve 6 is arranged in the connecting pipe 8, the one-way valve 6 enables water flow to a grey water end only from a rainwater end single direction, in rainy days, the grey water collecting pipe 5 is washed through rainwater to simply maintain the cleanliness, and the service life of the grey water collecting pipe is prolonged. The other end of the grey water collecting pipe 5 is connected with the first rainwater collecting pipe 3, so that the rainwater and the grey water are converged.
The rainwater and grey water recycling part comprises a water storage tank 7, the water storage tank is positioned on one side of a first floor of a house, the other end of a first rainwater collecting pipe 3 is connected with a water inlet 9 of the water storage tank 7, a water inlet 9 is formed in the upper surface of the water storage tank 7, the water inlet 9 is connected with a rainwater and grey water converging collecting pipe, and rainwater and recovery fall into the water storage tank 7 under the action of gravity. The upper end of the water storage tank 7 is provided with a cover 10 connected through a hinge, the cover 10 can be controlled to be opened and closed by rotating up and down through the hinge, and the cover 10 can prevent floating leaves and other sundries from entering the water storage tank 7 to be cleaned conveniently. The simple sand filter device 11 is installed at the upper end inside the water storage tank 7, and the simple sand filter device 11 can effectively perform simple filtration treatment on the grey water and the rainwater to improve the cleanness degree of the reuse water. 4 detachable wall-hanging filter bags 12 are evenly hung on the inner wall of the lower side in the water storage tank 7, and activated carbon is filled in the wall-hanging filter bags 12 to carry out secondary adsorption treatment on rainwater and grey water treated by the simple sand filtering device 11. The bottom of the water storage tank 2 is provided with a water outlet 13, the water outlet 13 is positioned at the bottom of the water storage tank 7, the water outlet 13 is connected with a water discharge pipe 14, the other end of the water discharge pipe 14 is connected to a water inlet pipe 16 of the closestool, the water inlet pipe 16 is connected with the closestool, and the closestool is flushed by means of recycled rainwater and grey water, so that the efficient utilization of water resources is facilitated, and the energy conservation and environmental protection are realized. The toilet water inlet pipe 16 is provided with a three-way electromagnetic valve 15, the drain pipe 14 is connected with one valve port of the three-way electromagnetic valve 15, the other two valve ports are respectively connected with the toilet water inlet pipe 16 and the tap water inlet pipe 17, the valve port connected with the toilet water inlet pipe 16 is in a normally open state, and the opening and closing of the drain pipe 14 and the tap water inlet pipe 17 are determined according to the state that the water storage tank 7 has enough water. If enough water is stored in the water storage tank 7, a valve port connected with a drain pipe 14 is opened, and the toilet is flushed by rainwater and grey water. The buffer water tank 18 is arranged on the water inlet pipe 16 of the closestool, and the buffer water tank 18 is arranged at the upper end of the closestool. The buffer tank 18 can prevent negative pressure backflow between the stored water in the water storage tank 7 and the toilet. The bottom of the water storage tank 7 is higher than the water inlet pipe 16 of the toilet. The toilet bowl is flushed on the premise of not adding additional power equipment by utilizing the characteristic that water flow is influenced by gravity, so that the electric power is saved, and the toilet bowl is energy-saving and environment-friendly.
One side of keeping away from the house of water storage tank 7 is equipped with overflow mouth 19 under simple and easy grit filter equipment 11, overflow mouth 19 can effectually avoid rainwater and grey water to overflow to simple and easy grit filter equipment 11 on, thereby avoid the impurity in simple and easy grit filter equipment 11 to be washed out and influence quality of water, avoid rainwater and grey water to overflow water storage tank 7 and influence all ring edge borders sense organ, lower extreme that keeps away from house one side at water storage tank 7 installs atmospheric valve 20, atmospheric valve 20 can connect relevant equipment and wash the car or water near the flower nursery, realize rainwater and grey water secondary retrieval and utilization.
In conclusion, in the actual use process, the slope type water collecting tank 1 finally conveys the rainwater on the roof to the water storage tank 7 in rainy days, the rainwater is processed by the simple sand filter 11 and then stored, when a householder needs to flush the toilet, the valve port of the three-way electromagnetic valve 15 connected with the water discharge pipe 14 is opened to flush the toilet with rainwater and ash, the stored water in the water storage tank 7 can be connected with relevant equipment through the vent valve 20 to wash the vehicle and water the green land nearby, and the secondary recycling of the rainwater and the ash is realized.
Claims (10)
1. A rainwater and grey water collecting and recycling system applied to rural residences is characterized by comprising a roof rainwater collecting part, an indoor grey water collecting part and a rainwater and grey water recycling part; the roof rainwater collecting part comprises water collecting grooves which are arranged on two sides of a roof and are parallel to eave, wherein one end of one side of the water collecting groove is connected with a first rainwater collecting pipe, and one end of the other side of the water collecting groove is connected with a second rainwater collecting pipe; the indoor grey water collecting part comprises a grey water collecting pipe, the grey water collecting pipe is connected with a grey water outlet, one end of the grey water collecting pipe is connected with the other end of the second rainwater collecting pipe, and the other end of the grey water collecting pipe is connected with the first rainwater collecting pipe to form a rainwater and grey water confluence collecting pipe; the rainwater and grey water recycling part comprises a water storage tank and a recycled water pipe, the upper end of the water storage tank is connected with the rainwater and grey water confluence collecting pipe, the bottom end of the water storage tank is connected with one end of a drain pipe, the other end of the drain pipe is connected with a water inlet pipe of a closestool, and one side, away from a house, of the water storage tank is provided with an overflow port and an emptying valve.
2. The rainwater and grey water collecting and recycling system for rural residences according to claim 1, wherein the water collecting tank is a slope type water collecting tank, one end connected with the rainwater collecting pipe is a slope bottom, and the slope gradually increases towards the other end.
3. The rainwater and grey water collecting and recycling system for rural residences according to claim 2, wherein the slope of the slope type water collecting tank is 5-15 °.
4. The rainwater and grey water collecting and recycling system applied to rural residences according to any one of claims 1 to 3, wherein iron leakage nets are installed at the connection inlets of the first rainwater collecting pipe and the second rainwater collecting pipe and the water collecting tank.
5. The rainwater and grey water collecting and recycling system applied to rural residences according to claim 4, wherein a one-way valve for enabling a rainwater end to flow towards a grey water end is installed at the joint of the grey water collecting pipe and the second rainwater collecting pipe.
6. The rainwater and grey water collecting and recycling system for rural residences according to claim 5, wherein the bottom end of the water storage tank is higher than the water inlet pipe of the toilet.
7. The rainwater and grey water collecting and recycling system for rural residences according to claim 6, wherein the water inlet pipe of the toilet is provided with a three-way solenoid valve, the water outlet pipe of the water storage tank is connected with the three-way solenoid valve, and the other two valves are respectively connected with the water inlet pipe of the toilet and a tap water pipe.
8. The rainwater and grey water collecting and recycling system for rural residences according to claim 7, wherein a simple sand filtering device is arranged at the upper layer of the inside of the water storage tank, and the overflow port of the water storage tank is positioned below the simple sand filtering device.
9. The rainwater and grey water collecting and recycling system for rural residences according to claim 8, wherein the sand filtering device is provided with sand with a smaller and larger sand grain size from bottom to top.
10. The rainwater and grey water collecting and recycling system for rural residences according to claim 9, wherein a wall-mounted filter bag is arranged below the simple sand filter device in the water storage tank, and the filter bag is filled with replaceable activated carbon.
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| CN202122695282.XU CN216041466U (en) | 2021-11-04 | 2021-11-04 | Rainwater and grey water collecting and recycling system applied to rural residences |
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| CN202122695282.XU CN216041466U (en) | 2021-11-04 | 2021-11-04 | Rainwater and grey water collecting and recycling system applied to rural residences |
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| CN202122695282.XU Active CN216041466U (en) | 2021-11-04 | 2021-11-04 | Rainwater and grey water collecting and recycling system applied to rural residences |
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