A new river water purification device

By combining two water purification networks and a water circulation system, the problem of existing devices being unable to deeply purify river water has been solved, achieving multi-layer filtration and sterilization of river water, thus improving water quality and the living environment.

CN117105451BActive Publication Date: 2025-11-11NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER +1
View PDF 3 Cites 0 Cited by

Patent Information

Application Number
CN202310844764.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-11
Publication Date
2025-11-11
Estimated Expiration
2043-07-11

AI Technical Summary

Technical Problem

Existing river water purification devices mainly focus on intercepting floating debris, failing to effectively remove impurities, bacteria, viruses, discoloration, odor, heavy metals, and other harmful substances from the water, resulting in poor river water quality and impacting the environment and residents' lives.

Method used

It adopts a two-stage water purification network structure. The front water purification network includes an activated carbon layer and a PP cotton layer, while the rear water purification network includes a reverse osmosis membrane and an ultrafiltration membrane layer. It is also equipped with a UV lamp, combined with a water circulation system and solar power supply, to achieve multi-layer filtration and sterilization.

Benefits of technology

It effectively removes inorganic ions, bacteria and other pollutants from river water, improves water quality, enhances quality of life, reduces manpower consumption, adapts to different river conditions, and promotes water environment protection.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN117105451B_ABST
    Figure CN117105451B_ABST
Patent Text Reader

Abstract

This invention discloses a novel river water purification device, comprising two water purification nets: a front purification net and a rear purification net. The front purification net is installed upstream of the river and has a multi-layer filtration structure, including an activated carbon layer and a PP cotton layer. The rear purification net includes a reverse osmosis membrane layer and an ultrafiltration membrane layer. A UV lamp for disinfection and sterilization is also installed on the rear purification net. Symmetrical fixing plates are installed and fixed on both sides of the river, with the purification net installed between the fixing plates. A top plate is installed above the fixing plates, spanning the river and fixed at both ends to the riverbanks. A telescopic rod is installed between the top plate and the purification net. This invention, with its two filtration and purification net devices, treats the water quality from both microscopic and macroscopic perspectives, purifying the river water. Simultaneously, the UV lamps in this invention sterilize the water after it passes through the filters, further purifying the river water and effectively protecting the drinking water health of family members.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention belongs to the technical field of river water purification, and specifically relates to a novel river water purification device. Background Technology

[0002] Water is the source of life and an essential component for the growth of all things. In plain river network areas, rapid industrial and agricultural development leads to the discharge of large amounts of point and non-point source pollutants into rivers. Rivers in these areas often exhibit monotonous forms, poor hydrodynamics, significant human interference, low ecological runoff, and poor oxygenation, resulting in severe water environment problems. Therefore, treating and reusing river water is of paramount importance. In recent years, people have paid increasing attention to water pollution, employing various methods and devices to purify and improve water quality. The most common method is to install debris screens at the inlet to intercept and treat visible floating debris, preventing further pollution of the entire river channel and reducing the workload of subsequent river cleanup, thus improving water purification efficiency. However, existing wastewater treatment devices primarily remove visible floating debris to prevent further pollution, without addressing the deeper purification needs or improving the water quality within the intercepted river channels. Therefore, a more reasonable solution is needed to address these issues.

[0003] In plain river network areas, most water purification devices treat surface garbage in the river and intercept some floating debris from entering deeper parts of the river, reducing the pollution of the water. However, they do not fundamentally purify the water quality in plain river network areas, resulting in poor water quality, environmental pollution, and a significant impact on the daily lives of local people. Therefore, there is a need for a highly efficient water purification device that removes impurities, bacteria, viruses, discoloration, odors, heavy metals, and other harmful substances from the water, making the water clean and drinkable. Summary of the Invention

[0004] In response to the lack of water purification devices in plain river networks, and the problem that existing water purification devices cannot remove impurities, bacteria, viruses, discoloration, odor, heavy metals and other harmful substances from the water, this invention provides a new type of highly efficient water purification device.

[0005] The solution adopted by this invention to solve its technical problem is: a novel river water purification device, comprising two water purification nets, namely a front water purification net and a rear water purification net. The front water purification net is installed upstream of the river and has a multi-layer filtration structure. The front water purification net includes an activated carbon layer and a PP cotton layer, and the rear water purification net includes a reverse osmosis membrane layer and an ultrafiltration membrane layer. An ultraviolet lamp for disinfection and sterilization is also installed on the rear water purification net.

[0006] Symmetrical fixed plates are installed on both sides of the river channel, and the water purification net is installed between the fixed plates. A top plate is installed above the fixed plates, spanning the river channel, with its two ends fixed to the banks of the river channel. Telescopic rods are installed between the top plate and the water purification net.

[0007] Furthermore, a plate is installed below the water purification net. The two ends of the plate are fixed to the fixing plates on both sides. When installing the water purification net, the plate is inserted into the river bottom to form a barrier, ensuring that the bottom water completely passes through the water purification device.

[0008] The river water purification device also includes a water circulation system, which includes a water pump and a circulating water pipe. The water pump is installed between the front and rear water purification networks. The outlet of the water pump is connected to the circulating water pipe. The outlet of the circulating water pipe is located upstream of the front water purification network. The water pump draws water from between the front and rear water purification networks and circulates it to the upstream of the river.

[0009] The river water purification device also includes an energy supply device, which uses solar panels to provide power for the ultraviolet lamps and the water circulation system.

[0010] The telescopic rod can be an electric actuator. The opposite side of the fixing plate is provided with a vertical slot. The width of the slot is the same as the width of the corresponding water purification net side. The water purification net is fitted into the slot.

[0011] Furthermore, a rubber sealing layer is provided in the card slot to improve the sealing between the water purification net and the card slot.

[0012] The water purification net is installed and fixed by fixed plates installed on both sides of the river. The upper and lower ends of the fixed plates are fixed to the riverbanks on both sides by positioning pins. At the same time, the front and rear water purification nets are connected by connecting strips to form a frame structure.

[0013] The beneficial effects of the present invention are as follows: The present invention is equipped with two filter purification screens, which treat the water quality from both microscopic and macroscopic perspectives, thereby purifying the river water. At the same time, the ultraviolet lamps provided in the present invention have a bactericidal and disinfecting effect on the water after it has passed through the filter screens, thereby further purifying the river water.

[0014] The water purification net device can effectively purify the water quality of rivers in plain river networks, removing most inorganic ions, bacteria, and other pollutants without causing any side effects. The device is easy to install, its cross-section position can be easily changed, and it has a long service life, eliminating the need for frequent replacements and reducing manpower waste. This water purification net device can significantly improve the water quality in plain river networks, achieving coordinated economic and environmental development, enhancing the city's image, promoting water environment construction and protection in plain river networks, raising local water culture needs, effectively protecting the drinking water health of families, and ensuring the quality of life and health of local residents. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a cross-sectional structural diagram of the pre-purification water network.

[0017] Figure 3 This is a cross-sectional structural diagram of the post-purification water network.

[0018] Figure 4 This is a front view structural diagram of the present invention.

[0019] Figure 5 This is a schematic diagram of the water circulation system of the present invention.

[0020] Figure 6 This is a schematic diagram of another embodiment of the present invention.

[0021] Figure 7 This is a schematic diagram of the rinsing mechanism for cleaning the double-layer water purification screen.

[0022] Numbered in the diagram: 1. Front water purification screen; 2. Rear water purification screen; 3. Fixing plate; 4. Positioning pin; 5. Insert plate; 6. Connecting strip; 7. Top plate; 8. Telescopic rod; 9. Circulation system; 101. Activated carbon layer; 102. PP cotton layer; 103. Ion exchange membrane layer; 201. Reverse osmosis membrane; 202. Ultrafiltration membrane; 203. Ultraviolet lamp; 11. Inlet; 12. Circulation tank; 13. Filter screen; 14. Outlet. Implementation

[0023] Example 1: The Central Plains region has a flat terrain, and the flow and velocity of urban rivers are relatively small. With rapid industrial and agricultural development, a large amount of point source and non-point source pollutants are discharged into the rivers. The rivers have a simple shape, poor hydrodynamics, and a lot of human interference. The ecological runoff of the rivers is small and the oxygen enrichment capacity is poor, resulting in very serious water environment problems in the plain river network area.

[0024] To address severe river pollution and purify the water, this invention provides a novel river water purification device. This device mainly consists of two parallel water purification nets, which perform graded filtration to slowly purify the river water and gradually improve the water quality of the urban river network.

[0025] The river water purification net is a mesh-like water purification device designed for river networks in plains areas. Constructed from special materials, the device consists of two purification nets, front and rear. Each net comprises a filter screen and filter plates, connected by welded strips to ensure its stability. The front purification net incorporates activated carbon, PP cotton, and ion exchange membranes. Through the action of these filter media, suspended solids, organic matter, odors, heavy metals, and scale are removed from the water, reducing turbidity. The second purification net incorporates reverse osmosis membranes, ultrafiltration membranes, and ultraviolet lamps to remove inorganic ions and bacteria, and disinfects the filtered water. Using both nets, the device effectively purifies river water, improving water quality and enhancing people's lives.

[0026] Specific examples Figure 1 As shown, the water purification network is divided into a front water purification network 1 and a rear water purification network 2. The front water purification network 1 is installed upstream of the river, and the rear water purification network 2 is installed downstream of the river. Figure 2 and Figure 3 As shown, the pre-purification water network 1 includes multiple layers, namely an activated carbon layer 101 and a PP cotton layer 102. Depending on the actual use, an ion exchange membrane layer 103 can be added at the rear. Through the filter media in the activated carbon layer 101 and the PP cotton layer 102, suspended solids, organic matter, and odors in the water are removed. The ion exchange membrane layer 103 filters out heavy metals and scale in the water, reducing the turbidity of the water. The post-purification water network 2 includes a reverse osmosis membrane 201, an ultrafiltration membrane 202, and an ultraviolet lamp 203, etc., used to remove inorganic ions and bacteria in the water and disinfect the filtered water. Through the two water purification networks, the river water can be purified efficiently, improving water quality and people's lives.

[0027] The water purification net is installed and fixed by fixing plates 3 installed on both sides of the river. The upper and lower ends of the fixing plates 3 are fixed to the riverbanks on both sides by positioning pins 4. At the same time, the front and rear water purification nets are connected by connecting strips 6 to form a frame structure.

[0028] like Figure 4 As shown, a plate 5 is installed below the water purification net. When installing the water purification net, the plate is inserted into the river bottom. The two ends of the plate are fixed to the fixing plates 3 on both sides. The plate forms a barrier to ensure that the bottom water completely passes through the water purification device.

[0029] A top plate 7 is installed and fixed above the water purification net. The two ends of the top plate 7 are fixed to the riverbanks on both sides. A telescopic rod 8 is installed between the top plate and the water purification net. The upper end of the telescopic rod is connected to the top plate, and the lower end of the telescopic rod is connected to the water purification net. By pressing down with the fixed top plate and the telescopic rod, the water purification net can be firmly fixed in the river channel, ensuring the sealing of the lower side of the river channel.

[0030] Depending on the cleanliness of the river water, regularly clean the suspended solids and debris blocked by the pre-filter screen, and regularly replace the filter media such as activated carbon and PP cotton; similarly, the surfaces of the post-filter screen, reverse osmosis membrane 201, ultrafiltration membrane 202, and ultraviolet lamp 203 also need to be cleaned regularly, and replaced as appropriate according to the usage conditions.

[0031] The terrain of plains and river networks is flat and the water flow is slow. The water purification device provided by this invention can achieve slow purification of water quality and gradually change the water quality of the river. At the same time, the plains receive less rainfall, so the obstruction of the water purification device will not have a significant impact. In case of heavy rain, the water purification net in the water purification device can be removed in advance to avoid river blockage and damage to the water purification net.

[0032] Example 2: The downstream water purification network uses reverse osmosis membrane 201 and ultrafiltration membrane 202 to filter river water. The reverse osmosis membrane 201 and ultrafiltration membrane 202 will filter out a large number of impurities, which will increase the concentration of impurities in the river water between the upstream and downstream water purification networks, which is not conducive to further filtration and purification of river water.

[0033] Therefore, this embodiment further adds a water circulation system 9 based on embodiment one, such as... Figure 5 As shown, the water circulation system includes a water pump and a circulating water pipe. The water pump is installed between the front and rear water purification networks. The outlet of the water pump is connected to the circulating water pipe, and the outlet of the circulating water pipe is located upstream of the front water purification network. The water pump draws water between the front and rear water purification networks and circulates it to the upstream of the river. On the one hand, this can accelerate the filtration speed of the front water purification network. On the other hand, by circulating the river water in the middle, the concentration of impurities in the river water between the front and rear water purification networks is reduced, thereby improving the filtration efficiency of the rear water purification network.

[0034] Example 3: The river water purification device also includes an energy supply device, which uses solar panels. The river water purification device of this invention uses activated carbon, PP cotton, reverse osmosis membranes, and ultrafiltration membranes. Therefore, the water purification speed is not fast, and the purification process mainly relies on the river's own flow. Electricity is only required for the ultraviolet lamps and the water circulation system, resulting in low power demand. Using solar energy can fully meet the usage requirements, and solar power can also reduce resource consumption.

[0035] Furthermore, the telescopic rod 8 can be an electric actuator. The opposite side of the fixing plate 3 is provided with a vertical slot. The width of the slot is the same as the width of the corresponding water purification net side. The water purification net is fitted in the slot. The electric actuator drives the water purification net to move up and down along the slot. A rubber sealing layer is provided in the slot.

[0036] The electric actuator is connected to the water purification screen by bolts. When the water purification screen needs to be replaced, or when the water flow increases and the water flow speed needs to be increased, the electric actuator can lift the water purification screen out of the water body, which can increase the water flow speed and avoid blocking the river channel; or facilitate the replacement of the water purification screen and the filter media.

[0037] Example 3: As Figure 6 As shown, the novel river water purification device also includes a coarse filtration system, which is located upstream of the water purification net. The coarse filtration system includes a circular circulation pool 12, which includes an inlet 11 and an outlet 14. The inlet 11 is connected along the tangential direction of the circular circulation pool, and a water pump is installed at the inlet to drive the river water flow. A filter screen 13 is set at an eccentric position in the circulation pool to perform preliminary filtration of the river water. The outlet 14 is located behind the filter screen, and the water purification net is installed at the outlet and spans across the outlet.

[0038] Urban waterways are often eutrophic, with floating debris such as duckweed and spirulina commonly growing in them. Direct filtration with activated carbon or PP cotton can easily clog these materials, affecting the effectiveness of the purification system. Therefore, this embodiment, based on the previous embodiment, includes a coarse filtration system upstream of the water purification network. The coarse filtration system consists of a circular circulation pool 12 and a filter screen 13. A water pump or other driving device rotates the water in the circulation pool, drawing the floating debris such as duckweed and spirulina into the pool. Simultaneously, the filter screen removes the blocked debris.

[0039] Furthermore, a double-layer post-purification water screen is installed. This screen utilizes both reverse osmosis and ultrafiltration membranes. After a period of filtration, impurities easily accumulate on the membrane surface, affecting filtration efficiency. Therefore, two post-purification water screens are used. An electric telescopic rod is installed on the top plate to alternately raise the two post-purification water screens. Simultaneously, a flushing mechanism is installed on the top plate, with nozzles facing the water-facing side of the post-purification water screens. Once the post-purification water screens are lifted out of the water by the electric telescopic rod, they are flushed by the nozzles for cleaning. The two post-purification water screens are alternately raised out of the water for cleaning, ensuring the continuity of river water purification. The flushing mechanism can employ a high-pressure flushing machine, which draws water directly from the river channel. By fixing the high-pressure flushing machine in a fixed direction, the water-facing side of the post-purification water screens can be flushed.

[0040] Flexible reverse osmosis membranes and ultrafiltration membranes are not easy to fix. Therefore, a fine wire mesh is installed in the frame of the post-purification water network. The reverse osmosis membrane and ultrafiltration membrane are laid on the fine wire mesh. The fine wire mesh supports the reverse osmosis membrane and ultrafiltration membrane and avoids water flow impact that could damage the reverse osmosis membrane and ultrafiltration membrane.

[0041] The specific embodiments described above are merely illustrative or explanatory of the principles of the present invention and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of the present invention should be included within the protection scope of the present invention.

Claims

1. A novel river water purification device, characterized in that, It includes two water purification networks, a water circulation system (9) and a coarse filtration system. The two water purification networks are a front water purification network (1) and a rear water purification network (2). The front water purification network (1) is installed upstream of the river. The water purification network has a multi-layer filtration structure. The front water purification network (1) includes an activated carbon layer (101) and a PP cotton layer (102). The rear water purification network (2) includes a reverse osmosis membrane layer (201) and an ultrafiltration membrane layer (202). The rear water purification network (2) is also equipped with an ultraviolet lamp (203) for disinfection and sterilization. Symmetrical fixing plates (3) are installed and fixed on both sides of the river. The water purification network is installed between the fixing plates (3). A top plate (7) is installed above the fixing plates (3). The top plate (7) spans the river and its two ends are fixed to the banks of the river. A telescopic rod (8) is installed between the top plate (7) and the water purification network. The water circulation system (9) includes a water pump and a circulating water pipe. The water pump is installed between the front and rear water purification networks (2). The outlet of the water pump is connected to the circulating water pipe. The outlet of the circulating water pipe is located upstream of the front water purification network (1). The water pump draws water between the front and rear water purification networks (2) and circulates it to the upstream of the river. The coarse filtration system is located upstream of the water purification network. The coarse filtration system includes a circular circulation pool (12). The circulation pool includes an inlet (11) and an outlet (14). The inlet (11) is connected along the tangential direction of the circular circulation pool. A water pump is installed at the inlet to drive the river water to flow. A filter screen (13) is set at the eccentric position of the circulation pool to perform preliminary filtration of the river water. The outlet (14) is located behind the filter screen. The water purification network is installed at the outlet and spans across the outlet. The post-purification water network consists of two sections, with an electric telescopic rod installed on the top plate. The two sections of the post-purification water network are alternately raised by the electric telescopic rod. At the same time, a flushing mechanism is installed on the top plate, with nozzles facing the water-facing side of the post-purification water network. After the post-purification water network is lifted out of the water by the electric telescopic rod, it is cleaned by the nozzles. The two sections of the post-purification water network are alternately raised out of the water for cleaning, ensuring the continuity of river water purification. The flushing mechanism uses a high-pressure flushing machine, which draws water directly from the river. By fixing the high-pressure flushing machine in a fixed direction, the water-facing side of the post-purification water network can be flushed.

2. The novel river water purification device according to claim 1, characterized in that, A plug plate (5) is installed at the bottom of the water purification net, and the two ends of the plug plate (5) are fixed on the fixing plates (3) on both sides.

3. The novel river water purification device according to claim 1, characterized in that, It also includes an energy supply device, which uses solar panels.

4. The novel river water purification device according to claim 1, characterized in that, The telescopic rod (8) is an electric push rod. The side opposite to the fixing plate (3) is provided with a vertical slot. The width of the slot is the same as the width of the corresponding water purification net side. The water purification net is fitted in the slot.

5. The novel river water purification device according to claim 4, characterized in that, A rubber sealing layer is provided in the card slot.

6. The novel river water purification device according to claim 1, characterized in that, The water purification net is installed and fixed by fixing plates (3) installed on both sides of the river. The upper and lower ends of the fixing plates (3) are fixed to the riverbanks on both sides by positioning pins (4). At the same time, the front and rear water purification nets (2) are connected by connecting strips (6) to form a frame structure.

Citation Information

Patent Citations

  • Purification barrier for river regulation

    CN107915339A

  • Riverway sludge purifying disposal device

    CN108164064A

  • Contamination initial stage rain water treatment facility

    CN206553349U