Unpowered siphon treatment water supply system and backwashing method thereof

Abstract

The invention relates to the technical field of urban and rural water supply, and particularly discloses an unpowered siphon treatment water supply system and a backwashing method thereof. The unpowered siphon treatment water supply system comprises a precipitation device, a siphon device and a water storage device. The inlet end of the precipitation device is connected with a water source, and the outlet end is connected with the siphon device. The water source is higher than the unpowered siphon treatment water supply system. The siphon device comprises a shell, an inlet cover plate, an outlet cover plate and a plurality of siphon membrane wires. The shell is provided with a cavity channel used for water circulation. The inlet cover plate and the outlet cover plate are arranged in the cavity channel. The inlet cover plate and the outlet cover plate are each provided with a plurality of water through holes. And the plurality of siphon membrane wires are arranged in parallel and next to each other and are mounted between the inlet cover plate and the outlet cover plate. The outlet end of the siphon device is connected with the water storage device. According to the system, gravitational potential energy of mountain spring water or reservoir water on a high mountain is used as power, water is guided to flow and filtered without power, the construction cost is reduced, and management is convenient.

Description

Technical Field

[0001] The present application relates to the field of water supply technology, and in particular to a non-powered siphon treatment water supply system and a backwashing method thereof. Background Art

[0002] Some villages and towns located in the mountains, at the foot of the mountains or on the mountainside have spring water or mountain reservoirs on the high mountains, but they do not make full use of the water from the spring water or mountain reservoirs as domestic water. The main reason is that these villages and towns lack reliable and well-functioning drinking water filtration and disinfection systems. The construction of drinking water filtration and disinfection systems in scattered villages and towns requires a large investment and is troublesome to manage. Therefore, it is of great significance to use spring water or mountain reservoir water as the water source to establish a low-cost and easy-to-manage drinking water filtration and disinfection system for villages and towns to improve the drinking water needs of villages and towns, especially remote villages and towns. Summary of the invention

[0003] In view of the fact that some villages and towns do not fully utilize mountain spring water or water from mountain reservoirs as domestic water, this application proposes to establish a low-cost and easy-to-manage drinking water filtration and disinfection system for village and town construction.

[0004] In a first aspect, the present application proposes a non-powered siphon treatment water supply system and adopts the following technical solution.

[0005] A non-powered siphon treatment water supply system comprises a sedimentation device, a siphon device and a water storage device.

[0006] The inlet end of the sedimentation device is connected to a water source, and the outlet end of the sedimentation device is connected to the siphon device. The water source is higher than the unpowered siphon treatment water supply system.

[0007] The siphon device comprises a shell, an inlet cover plate, an outlet cover plate and a plurality of siphon membrane threads. The shell has a cavity for circulating water. The inlet cover plate and the outlet cover plate are arranged in the cavity, and the periphery of the inlet cover plate and the periphery of the outlet cover plate are seamlessly connected to the cavity respectively. The inlet cover plate and the outlet cover plate are both provided with a plurality of water holes. The plurality of siphon membrane threads are arranged closely in parallel and installed between the inlet cover plate and the outlet cover plate. The diameter of the water hole is smaller than the diameter of the siphon membrane thread.

[0008] The outlet end of the siphon device is connected to the water storage device.

[0009] By adopting the above technical solution, this system uses the gravitational potential energy of mountain spring water or reservoir water as power, and does not need to equip power devices to extract water from the water source, thus reducing the construction cost. This system uses unpowered siphon membrane to filter sediment, humus and pathogenic microorganisms in the water, with a removal rate of more than 99.99%. This system can operate automatically for a long time and is easy to manage.

[0010] A preferred solution of the unpowered siphon treatment water supply system is that the sedimentation device includes a sedimentation container and an inverted bucket type sedimentator; the inverted bucket type sedimentator includes an upper cone and a lower cone that are spaced opposite to each other up and down and are both arranged at the lower part of the sedimentation container; the periphery of the lower cone is seamlessly connected to the inner wall of the sedimentation container; the tip of the lower cone faces downward; a plurality of water outlets are arranged on the circumference of the upper cone; the tip of the upper cone faces upward and is open; the water source is guided into the opening of the tip of the upper cone; the outlet of the sedimentation container is located above the upper cone and at the upper part of the sedimentation container.

[0011] By adopting the above technical solution, water enters from the tip of the upper cone, solid matter settles downward into the lower cone, and the raised turbid matter is blocked by the upper cone and is not easy to float out of the upper cone, but will settle downward again, and the clearer water flows upward from the water outlet on the side of the upper cone, and continues to move upward to the upper part of the sedimentation container and flows out, so that the sedimentation device promotes the sedimentation of solid matter in the water, and the outflowing water contains less particulate matter.

[0012] A preferred solution of the non-powered siphon water supply system is that the siphon membrane is covered with micropores, the average pore size of the micropores is 10-30 μm, the diameter of the siphon membrane is 2-3 mm, and the pore size of the water hole is 1-1.5 mm.

[0013] By adopting the above technical solution, the siphon membrane yarn is not easy to pass through the water hole and drill out of the inlet cover plate or the outlet cover plate, and can be restricted by the inlet cover plate and the outlet cover plate to maintain a stable combined shape. The siphon membrane yarn rich in micropores of this aperture can absorb more than 99.99% of sediment, humus and pathogenic microorganisms, etc., greatly ensuring the safety and stability of the water after siphoning. The siphon membrane yarn accelerates the output of water through the water absorption effect of the micropores and plays a siphoning role.

[0014] A preferred solution of the unpowered siphon water supply system is that the unpowered siphon water supply system further comprises a backwash device, which comprises an aeration mechanism, a desorption liquid mechanism and a water return mechanism.

[0015] The aeration mechanism is configured to inject air bubbles from below the inlet cover plate. The desorption liquid mechanism is configured to inject desorption liquid from above the outlet cover plate. The water return mechanism is configured to inject clean water onto the outlet cover plate.

[0016] By adopting the above technical scheme, the desorption liquid soaking the siphon membrane filaments can reduce the adsorption effect of the siphon membrane filaments on particulate matter. With the aeration effect of the aeration mechanism, the membrane filaments and the particulate matter shake, so that the particulate matter is separated from the siphon membrane filaments, and the particulate matter falls to the bottom of the shell and can be discharged from the shell; then the return water mechanism injects water into the top of the shell for cleaning, and then discharges it, thereby completing the desorption and regeneration of the siphon membrane filaments.

[0017] A preferred solution of the unpowered siphon water supply system is that the unpowered siphon water supply system further comprises a solar power generation device, and the solar power generation device provides electric energy for the aeration mechanism, the desorption liquid mechanism and the water return mechanism respectively.

[0018] By adopting the above technical solution, the solar power generation device converts solar energy into electrical energy. A solar power generation device with relatively small power can provide sufficient electrical energy to supply the aeration mechanism, the desorption liquid mechanism and the water return mechanism which are not in continuous operation.

[0019] A preferred solution of the unpowered siphon water supply system is that the inlet cover plate is arranged below the outlet cover plate.

[0020] The aeration mechanism includes an air-washing fan and an aeration plate. The solar power generation device is connected to the air-washing fan. The air-washing fan is connected to the aeration plate through an aeration pipe, and a solar electromagnetic valve is installed on the aeration pipe. The aeration plate is installed at the inner bottom of the shell and is located below the inlet cover plate. The shell is provided with an air outlet pipe above the outlet cover plate.

[0021] By adopting the above technical solution, the solar power generation device supplies power to the air washing fan, solving the problem of aeration power source. The aeration plate is arranged at the bottom of the shell, and the upward aeration passes through the water holes to impact the bundled membrane filaments, and the particles and bacteria adsorbed by the membrane filaments are washed down, so that the membrane filaments can repeatedly adsorb particles and bacteria.

[0022] A preferred solution of the unpowered siphon treatment water supply system is that the desorption liquid mechanism includes a raw liquid tank, a liquid distribution tank and an agitator. The raw liquid tank is loaded with sodium hypochlorite raw liquid. The agitator extends into the liquid distribution tank. The solar power generation device is connected to the agitator. The raw liquid tank is arranged at a position higher than the liquid distribution tank. The raw liquid tank is connected to the liquid distribution tank through a pipeline, and a solar solenoid valve and a flow meter are installed on the pipeline. The liquid distribution tank is arranged at a position higher than the shell. The liquid distribution tank is connected to the shell through a pipeline, and the outlet of the pipeline is located above the outlet cover plate. A solar solenoid valve and a flow meter are also installed on the pipeline.

[0023] The water return mechanism includes a water pump. The inlet end of the water pump is connected to the water storage device. The outlet end of the water pump is connected to the liquid distribution box through a pipeline, and a solar electromagnetic valve and a flow meter are installed on the pipeline. The water pump is connected to the housing through another pipeline, and the outlet of the pipeline is located above the outlet cover plate, and a solar electromagnetic valve and a flow meter are installed on the pipeline.

[0024] By adopting the above technical solution, the siphon membrane filaments are soaked in sodium hypochlorite, so that the particles adsorbed by the membrane filaments can be desorbed. The desorption liquid mechanism can realize automatic liquid preparation, the solar power generation device supplies power to the stirrer and automatically stirs the prepared liquid, and the desorption mechanism can also automatically inject the prepared sodium hypochlorite solution into the shell, which is easy to manage.

[0025] A preferred solution of the non-powered siphon water supply system is that the raw liquid tank and the liquid distribution tank are arranged in the cave, and the solar electromagnetic valve between the raw liquid tank and the liquid distribution tank is arranged outside the cave and located at a position where solar energy is irradiated.

[0026] By adopting the above technical solution, sodium hypochlorite is easily decomposed under sunlight or high temperature, but hiding it in the cave not only shields the sunlight but also avoids the high temperature environment, thus extending its shelf life. On the other hand, the solar solenoid valve is set in a position outside the cave where the sun shines, so it can absorb sunlight and convert it into energy for its own operation, and cooperate with its own chip to realize automatic opening and closing.

[0027] A preferred solution of the unpowered siphon water supply system is that the siphon device is connected to the water storage device through a water production pipe. A solar electromagnetic valve and a flow meter are installed on the water production pipe. The liquid distribution box is connected to the water production pipe through a pipeline, and the connection point is located after the solar electromagnetic valve on the water production pipe.

[0028] By adopting the above technical scheme, the sodium hypochlorite solution in the liquid distribution box can also be used for backwashing siphon membrane filaments and for sterilizing and disinfecting produced water, thereby improving the utilization rate of the sodium hypochlorite solution, reducing the types of reagents, reducing costs and facilitating management.

[0029] On the second aspect, the present application proposes a backwash method for a non-powered siphon treatment water supply system, and adopts the following technical solution.

[0030] A backwashing method for an unpowered siphon treatment water supply system comprises the following steps.

[0031] The water in the housing is drained.

[0032] The liquid distribution box injects sodium hypochlorite solution into the shell to soak the siphon membrane wire.

[0033] The aeration mechanism exposes air into the shell.

[0034] The sodium hypochlorite solution in the shell is drained, and the water return mechanism injects clean water into the shell to wash the siphon membrane wire.

[0035] The water in the shell is drained to complete the backwashing of the siphon membrane wire.

[0036] By adopting the above technical solution, sodium hypochlorite reduces the adsorption effect of siphon membrane threads on particulate matter and bacteria. After aeration, these particulate matter and bacteria are separated from the siphon membrane threads. The cleaned siphon membrane threads can efficiently adsorb particulate matter and bacteria again.

[0037] In summary, the non-powered siphon water supply system of the present application has the following beneficial effects: the system uses the gravitational potential energy of high mountain spring water or mountain reservoir as the power source, does not have its own pumping power device, reduces power consumption, reduces construction costs, and the siphon membrane can filter out more than 99.99% of sediment, bacteria, humus, etc., effectively ensuring the safety and stability of the output water. The system is also equipped with a solar power generation device to power the system, making the system self-sufficient and easy to manage.

[0038] The backwashing method of the present application has the following beneficial effects: the adsorbed siphon membrane filaments are soaked in sodium hypochlorite and aerated, so that the adsorbed substances are separated from the siphon membrane filaments, so that the siphon membrane filaments basically restore the siphon filtering function, increase their service life, and facilitate management. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 The figure is a connection diagram of a non-powered siphon water supply system.

[0040] Figure 2 for Figure 1 Surface structure diagram of the entrance cover.

[0041] Figure 3 for Figure 1 Another marking diagram of .

[0042] Figure numerals: 1. coarse filter; 2. sedimentation device; 3. siphon device; 4. water storage device; 5. solar power generation device; 201. sedimentation container; 202. inverted bucket sedimentator; 2021. upper cone; 2022. lower cone; 6. regulating valve; 7. flow meter; 8. first sewage pipe; 9. solar solenoid valve; 301. shell; 302. inlet cover plate; 303. outlet cover plate; 3021. water hole; 10. water production pipe; 11. second sewage pipe; 12. aeration mechanism; 13. desorption liquid mechanism; 14. return water mechanism; 121. air washing fan; 122. aeration plate; 123. aeration pipe; 15. outlet pipe; 131. raw liquid tank; 132. liquid distribution tank; 133. agitator; 16. cave; 141. water pump. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the following embodiments, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0044] like Figure 1 , a non-powered siphon water supply system, comprising a coarse filter 1, a sedimentation device 2, a siphon device 3, a water storage device 4, a backwash device and a solar power generation device 5.

[0045] The average filtration pore size of the coarse filter 1 is 100 μm. A water pipe is used to connect to a high water source, which can be a mountain spring or a mountain reservoir. The unpowered siphon water supply system is built at the foot of the mountain or at a location lower than the water source. The gravitational potential energy of the water source can be converted into kinetic energy, and through the continuous pushing effect of the water source, the water can continue to penetrate to the rear end in the system, achieving the purpose of unpowered water diversion.

[0046] The water source enters the sedimentation device 2 after being filtered by the coarse filter 1. The sedimentation device 2 includes a sedimentation container 201 and an inverted bucket sedimentation device 202. The sedimentation container 201 is cylindrical, upright, and is spliced ​​by two upper and lower cylinders, and the splicing is a flange sealing connection. The inverted bucket sedimentation device 202 consists of an upper cone 2021 and a lower cone 2022. The tip of the lower cone 2022 is downward, and the periphery of the large end is seamlessly welded and fixed to the inner wall of the sedimentation container 201. The large end of the upper cone 2021 is downward and spaced relative to the lower cone 2022. The large end of the upper cone 2021 has an outward horizontal folding edge, which is seamlessly welded to the inner wall of the sedimentation container 201, and a plurality of circular water outlets are provided on the folding edge. The tip of the upper cone 2021 is upward, and the tip is an opening for inserting a water pipe to inject water.

[0047] The coarse filter 1 and the sedimentation device 2 are connected by a water pipe, and a regulating valve 6 and a flow meter 7 are installed on the water pipe. The regulating valve 6 is used to adjust the flow. The flow meter 7 can record the water flow entering the system. The system also has a first sewage pipe 8 inserted into the lower cone 2022, and the outlet of the first sewage pipe 8 is located outside the lower cone 2022. A solar solenoid valve 9 is installed on the first sewage pipe 8. The valve has a solar panel, a chip and a timing switch to realize autonomous functions, autonomously control the switching time, and realize timed and fixed-length sewage discharge. The solar solenoid valve 9 of the present application can adopt the solar valve supplied by Chongqing Dacai Valve Manufacturing Co., Ltd.

[0048] The upper part of the sedimentation device 2 is a water production area, which is connected to the lower part of the siphon device 3 through a pipe. The siphon device 3 includes a shell 301, an inlet cover plate 302, an outlet cover plate 303 and a plurality of siphon membrane filaments. The shell 301 is cylindrical and vertically arranged. Four vertically arranged cylinders are installed inside the shell 301. The lower ends of the four cylinders are covered with an inlet cover plate 302, and the periphery of the inlet cover plate 302 is seamlessly connected to the inner wall of the shell 301.

[0049] like Figure 2 The inlet cover plate 302 has four multi-hole openings, which are directly opposite to the lower openings of the four cylinders. Each multi-hole opening is densely covered with a plurality of water holes 3021, and the diameter of the water holes 3021 is 1-1.5 mm.

[0050] The outlet cover plate 303 and the inlet cover plate 302 are symmetrically arranged. The lower ends of the four cylinders are covered by the outlet cover plate 303, the periphery of the outlet cover plate 303 is seamlessly connected to the inner wall of the shell 301, and the outlet cover plate 303 has four multi-holes, which are directly opposite to the upper ends of the four cylinders, and each multi-hole is densely covered with a plurality of water holes 3021, and the diameter of the water holes 3021 is 1-1.5 mm.

[0051] Multiple parallel siphon membrane filaments are loaded into each cylinder, and each siphon membrane filament is close to each other, so that multiple siphon membrane filaments are tightly loaded in the cylinder and are not easily dispersed or bent by the water flow. The diameter of the siphon membrane filament is 2~3mm, and the membrane filament is covered with micropores, and the average pore size of the micropores is 10~30μm. The diameter of the siphon membrane filament is larger than the diameter of the water hole 3021, so that the membrane filament is not easy to drill out of the outlet cover plate 303 or the inlet cover plate 302. The source of the siphon membrane filament can be ROTEKER, a German company, and its material is graphene-modified polyvinylidene fluoride. Based on its porous hydrophilic structure, the siphon membrane filament allows water molecules to pass through, while blocking most macromolecular substances, such as suspended particles, silt and bacteria, and attracts liquid from one side to the other side through capillary action, thereby achieving water separation and purification, which greatly ensures the safety and stability of the water after siphoning.

[0052] The upper part of the housing 301 is connected to the water storage device 4 through a water production pipe 10, and the water storage device 4 can be a water storage tank embedded under the ground surface. A solar electromagnetic valve 9 and a flow meter 7 are installed on the water production pipe 10, and the flow meter 7 is used to record the water production flow rate, which can be compared with the water inlet flow rate to calculate the water production rate.

[0053] The bottom of the housing 301 is connected to a second sewage pipe 11 , and a solar electromagnetic valve 9 is installed on the second sewage pipe 11 .

[0054] like Figure 3 The backwash device includes an aeration mechanism 12 , a desorption liquid mechanism 13 and a water return mechanism 14 .

[0055] The aeration mechanism 12 includes an air-washing fan 121 and an aeration plate 122. The air-washing fan 121 is connected to the aeration plate 122 via an aeration pipe 123. A solar solenoid valve 9 is installed on the aeration pipe 123. The aeration plate 122 is installed at the bottom of the shell 301 and is located below the inlet cover plate 302. It can be aerated upward to assist in desorption of the membrane filaments. The solar power generation device 5 is connected to the air-washing fan 121 to supply power to it. The shell 301 is provided with an outlet pipe 15 on the outlet cover plate 303 as the outlet of the aeration air, and a solar solenoid valve 9 is provided on the outlet pipe 15.

[0056] The desorption liquid mechanism 13 includes a raw liquid tank 131, a liquid distribution tank 132 and an agitator 133. The raw liquid tank 131 is loaded with sodium hypochlorite raw liquid. The raw liquid tank 131 is connected to the liquid distribution tank 132 through a pipeline, and a solar electromagnetic valve 9 and a flowmeter 7 are installed on the pipeline. The agitator 133 penetrates into the liquid distribution tank 132. The raw liquid tank 131 is higher than the liquid distribution tank 132, and the liquid distribution tank 132 is higher than the siphon device 3. This arrangement can utilize the gravity of the sodium hypochlorite solution itself to be discharged into a low-position container without the need to set up a power device, thereby reducing energy consumption and installation and management costs. Both the raw liquid tank 131 and the liquid distribution tank 132 can be installed in the cave 16, on the one hand, to block light, and on the other hand, to place the raw liquid tank 131 and the liquid distribution tank 132 in a low temperature environment, both of which reduce the decomposition efficiency of sodium hypochlorite and extend the shelf life of sodium hypochlorite. However, the solar electromagnetic valve 9 should be installed outside the cave 16 in a position that can be exposed to sunlight to generate electricity to maintain its normal operation. The solar power generation device 5 is connected to the stirrer 133 to provide a stirring function. A liquid level meter can also be installed in the liquid distribution box 132 to feedback the liquid level for liquid level control. The liquid distribution box 132 is connected to the top of the shell 301 through a pipeline, and sodium hypochlorite solution is supplied to the shell 301. The sodium hypochlorite solution drips onto the outlet cover plate 303, passes through the water hole 3021 and gradually penetrates into the siphon membrane filaments, dissociates the substances adsorbed by the siphon membrane filaments, and cooperates with the aeration effect to completely dissociate the substances adsorbed by the siphon membrane filaments. The liquid distribution box 132 is also connected to the water production pipe 10 through a pipeline, and a solar electromagnetic valve 9 and a flowmeter 7 are installed on the pipeline to pass sodium hypochlorite into the water production pipe 10 to sterilize and disinfect the produced water. The connection point where the above liquid distribution box 132 is connected to the water production pipe 10 through a pipeline is located after the solar electromagnetic valve 9 on the water production pipe 10 to prevent it from flowing into the shell 301. The liquid distribution box 132 is connected to the water production pipe 10 but not to the water storage device 4, so as to utilize the effect of flowing water to better disperse the sodium hypochlorite solution in the produced water. The flow rate of the sodium hypochlorite should be controlled to be small, or a small amount of sodium hypochlorite solution should be injected at intervals.

[0057] The water return mechanism 14 includes a water pump 141 and two water pipes. The inlet end of the water pump 141 is connected to the water storage device 4, and can suck in clean water. The water pump 141 is connected to the liquid distribution box 132 through one of its water pipes, and the water pipe is installed with a solar electromagnetic valve 9 and a flow meter 7. The water pump 141 extracts clean water to dilute the sodium hypochlorite stock solution, and the stirrer 133 stirs it evenly. As mentioned above, the dilution is used to soak the siphon membrane filaments and sterilize the produced water. The water pump 141 is connected to the top of the shell 301 through another water pipe, and the water pipe is installed with a solar electromagnetic valve 9 and a flow meter 7. After the siphon membrane filaments are soaked in sodium hypochlorite and drained, the water pump 141 introduces clean water to clean the membrane filaments and the inner cavity of the shell 301, completing the backwashing action of the siphon membrane filaments.

[0058] After the above-mentioned non-powered siphon water supply system is used for a period of time, the adsorption performance and water permeability efficiency of the siphon membrane will decrease. Direct replacement is costly and labor-intensive. Therefore, it is necessary to backwash the siphon membrane regularly to desorb the substances adsorbed by the siphon membrane and restore the siphon filtration performance.

[0059] The method for backwashing the siphon membrane filaments comprises the following steps.

[0060] First, close the solar electromagnetic valve 9 between the sedimentation device 2 and the siphon device 3 , and close the electromagnetic valve on the water production pipe 10 .

[0061] Open the solar electromagnetic valve 9 on the air outlet pipe 15 , open the solar electromagnetic valve 9 on the second sewage pipe 11 , and drain the water in the shell 301 .

[0062] Open the solar solenoid valve 9 on the pipe connecting the liquid distribution box 132 and the shell 301, inject sodium hypochlorite solution into the shell 301, and immerse the siphon membrane filaments in the sodium hypochlorite solution for 4 to 6 hours to perform in-situ dissociation of the particulate matter adsorbed by the siphon membrane filaments.

[0063] While the above soaking is in progress, the solar electromagnetic valve 9 on the aeration pipe 123 is opened, and the air washing fan 121 is started to aerate the siphon membrane threads, so that the particulate matter adsorbed by the siphon membrane threads is completely separated from the siphon membrane threads.

[0064] Close the solar electromagnetic valve 9 on the air washing fan 121 and the aeration pipe 123, open the solar electromagnetic valve 9 on the second sewage pipe 11, and drain the sodium hypochlorite solution in the shell 301.

[0065] Close the solar solenoid valve 9 on the second sewage pipe 11, start the water pump 141, and inject clean water into the top of the shell 301 to clean the membrane fibers. Aeration can be turned on during cleaning. After cleaning, open the solar solenoid valve 9 on the second sewage pipe 11 to drain the water in the shell 301 to complete the backwashing of the siphon membrane fibers and restore the flux of the siphon membrane fibers.

[0066] There are pollutants such as silt, humus and pathogenic microorganisms in the water of mountain spring water or mountain reservoirs. This system preliminarily filters the water source water by setting up a 100μm coarse filter 1. The water flow is controlled by a regulating valve 6 and a flow meter 7 on the way. The preliminary produced water enters the sedimentation device 2. The inverted bucket sedimentator 202 is set inside the sedimentation device 2 to settle the large particle pollutants. The sediment can be discharged regularly through the first sewage pipe 8. The produced water after sedimentation flows out from the upper part of the sedimentation container 201 and flows to the bottom of the siphon device 3. The siphon uses a non-powered siphon membrane to siphon water. The produced water rises to the top of the siphon membrane and then flows into the water storage device 4 through the water production pipe 10. The above process filters out 99.9999% of pollutants such as silt, humus and pathogenic microorganisms in the water source, which effectively ensures the safety and stability of the produced water. Through backwashing, the service life of the siphon membrane is extended and the management cost is reduced.

[0067] Although the present application has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A non-powered siphon water supply system, characterized in that: It comprises a sedimentation device (2), a siphon device (3) and a water storage device (4); The inlet end of the sedimentation device (2) is connected to a water source, and the outlet end of the sedimentation device (2) is connected to the siphon device (3); the water source is higher than the unpowered siphon treatment water supply system; The siphon device (3) comprises a shell (301), an inlet cover plate (302), an outlet cover plate (303) and a plurality of siphon membrane threads; the shell (301) has a cavity for circulating water; the inlet cover plate (302) and the outlet cover plate (303) are arranged in the cavity, and the periphery of the inlet cover plate (302) and the periphery of the outlet cover plate (303) are seamlessly connected to the cavity respectively; the inlet cover plate (302) and the outlet cover plate (303) are both provided with a plurality of water through holes (3021); the plurality of siphon membrane threads are arranged in parallel and closely together, and are installed between the inlet cover plate (302) and the outlet cover plate (303); the diameter of the water through hole (3021) is smaller than the diameter of the siphon membrane thread; The outlet end of the siphon device (3) is connected to the water storage device (4).

2. The unpowered siphon water supply system according to claim 1, characterized in that: The sedimentation device (2) comprises a sedimentation container (201) and an inverted bucket sedimentation vessel (202); the inverted bucket sedimentation vessel (202) comprises an upper cone (2021) and a lower cone (2022) which are spaced apart from each other and are arranged at the lower part of the sedimentation container (201); the periphery of the lower cone (2022) is seamlessly connected to the inner wall of the sedimentation container (201); the tip of the lower cone (2022) faces downward; a plurality of water outlets are arranged on the periphery of the upper cone (2021); the tip of the upper cone (2021) faces upward and is open; a water source is guided into the opening at the tip of the upper cone (2021); the outlet of the sedimentation container (201) is located above the upper cone (2021) and at the upper part of the sedimentation container (201).

3. The unpowered siphon water supply system according to claim 1, characterized in that: The siphon membrane thread is covered with micropores, and the average pore size of the micropores is 10-30 μm; the diameter of the siphon membrane thread is 2-3 mm; and the pore size of the water hole (3021) is 1-1.5 mm.

4. The unpowered siphon water supply system according to claim 1, characterized in that: The unpowered siphon treatment water supply system further comprises a backwash device; the backwash device comprises an aeration mechanism (12), a desorption liquid mechanism (13) and a water return mechanism (14); The aeration mechanism (12) is configured to inject air bubbles from below the inlet cover plate (302); the desorption liquid mechanism (13) is configured to inject desorption liquid from above the outlet cover plate (303); and the water return mechanism (14) is configured to inject clean water onto the outlet cover plate (303).

5. The unpowered siphon water supply system according to claim 4, characterized in that: The unpowered siphon treatment water supply system further comprises a solar power generation device (5), wherein the solar power generation device (5) respectively provides electric energy for the aeration mechanism (12), the desorption liquid mechanism (13) and the water return mechanism (14).

6. The unpowered siphon water supply system according to claim 5, characterized in that: The inlet cover plate (302) is arranged below the outlet cover plate (303); The aeration mechanism (12) comprises an air-washing fan (121) and an aeration plate (122); the solar power generation device (5) is connected to the air-washing fan (121); the air-washing fan (121) is connected to the aeration plate (122) via an aeration pipe (123), and a solar electromagnetic valve (9) is installed on the aeration pipe (123); the aeration plate (122) is installed on the inner bottom of the shell (301) and is located below the inlet cover plate (302); the shell (301) is provided with an air outlet pipe (15) above the outlet cover plate (303).

7. The unpowered siphon water supply system according to claim 5, characterized in that: The desorption liquid mechanism (13) comprises a raw liquid tank (131), a liquid distribution tank (132) and a stirrer (133); the raw liquid tank (131) is loaded with sodium hypochlorite raw liquid; the stirrer (133) extends into the liquid distribution tank (132); the solar power generation device (5) is connected to the stirrer (133); the raw liquid tank (131) is arranged at a position higher than the liquid distribution tank (132); the raw liquid tank (131) is connected to the liquid distribution tank (132) via a pipeline, and a solar electromagnetic valve (9) and a flow meter (7) are installed on the pipeline; the liquid distribution tank (132) is arranged at a position higher than the shell (301); the liquid distribution tank (132) is connected to the shell (301) via a pipeline, the outlet of the pipeline is located above the outlet cover plate (303), and a solar electromagnetic valve (9) and a flow meter (7) are also installed on the pipeline; The water return mechanism (14) comprises a water pump (141); the inlet end of the water pump (141) is connected to the water storage device (4); the outlet end of the water pump (141) is connected to the liquid distribution box (132) via a pipeline, and a solar electromagnetic valve (9) and a flow meter (7) are installed on the pipeline; the water pump (141) is connected to the housing (301) via another pipeline, the outlet of the pipeline is located above the outlet cover plate (303), and the solar electromagnetic valve (9) and the flow meter (7) are installed on the pipeline.

8. The unpowered siphon water supply system according to claim 7, characterized in that: The raw liquid tank (131) and the liquid distribution tank (132) are arranged in the cave (16); the solar electromagnetic valve (9) between the raw liquid tank (131) and the liquid distribution tank (132) is arranged outside the cave (16) and is located at a position where solar energy can reach.

9. The unpowered siphon water supply system according to claim 7, characterized in that: The siphon device (3) is connected to the water storage device (4) via a water production pipe (10); a solar electromagnetic valve (9) and a flow meter (7) are installed on the water production pipe (10); and the liquid distribution box (132) is connected to the water production pipe (10) via a pipeline, with the connection point being located after the solar electromagnetic valve (9) on the water production pipe (10).

10. A backwashing method for an unpowered siphon treatment water supply system according to any one of claims 7 to 9, characterized in that: include: draining the water in the housing (301); The liquid distribution box (132) injects a sodium hypochlorite solution into the shell (301) to soak the siphon membrane filaments; The aeration mechanism (12) introduces air into the shell (301); The sodium hypochlorite solution in the shell (301) is drained, and the water return mechanism (14) injects clean water into the shell (301) to rinse the siphon membrane wire; The water in the shell (301) is drained to complete the backwashing of the siphon membrane filaments.

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