Energy-saving device for removing iron and manganese from drinking water

Abstract

The utility model relates to the technical field of drinking water treatment, in particular to an energy-saving type drinking water iron and manganese removal device without electric control. A municipal water supply pipe is communicated with a water inlet of an upper-layer water distribution tank, a water outlet of the upper-layer water distribution tank is communicated with a water inlet pipe in a water collection filtering tank through a U-shaped water inlet pipe, the water inlet pipe is communicated with a backwashing drainage pipe, and a water pipe opening of the backwashing drainage pipe is communicated with the top of a filtering inner tank; the highest part of the inclined pipeline of the backwashing drain pipe is communicated with the middle part of a siphon glass pipe, a breaking hopper of the siphon glass pipe is arranged at the upper part in the water collecting tank, and the other end of the siphon glass pipe is arranged outside the water collecting and filtering tank and is communicated with the sewage tank. The device does not need to be controlled by electric power, utilizes hydraulic kinetic energy, realizes high-efficiency removal of iron and manganese by self liquid level difference adjustment, can realize automatic backwashing, and solves the problems of high energy consumption, dependence on electric control and high equipment cost in the traditional technology.

Description

Technical Field

[0001] This utility model relates to the field of drinking water treatment technology, and in particular to an energy-saving drinking water iron and manganese removal device that does not require power control. Background Technology

[0002] Long-term consumption of water containing iron and manganese poses serious risks. Excessive iron intake over a long period can lead to hemochromatosis, with a higher risk in individuals with hereditary hemochromatosis. Iron can accumulate in organs such as the liver, heart, and pancreas, potentially causing cirrhosis, diabetes, and heart failure. Iron is a pro-oxidant; excessive intake may increase free radical production, accelerate cell aging, and is associated with cancer risk. Short-term side effects may include abdominal pain, nausea, and constipation, especially in sensitive individuals. Excessive manganese intake can damage the nervous system. Manganese tends to accumulate in the brain, and long-term exposure can lead to symptoms similar to Parkinson's disease, such as tremors, muscle stiffness, and balance disorders. Children and those with occupational exposure are at higher risk and may experience cognitive decline. Therefore, iron and manganese removal devices are a crucial part of drinking water treatment.

[0003] Traditional groundwater treatment iron and manganese filtration devices rely on water pumps or air-powered backwashing, requiring dedicated personnel to manage the operation of valves, including opening and closing certain valves or using electric valves programmed in advance by a PLC control system for timed backwashing. This can easily lead to untimely backwashing or electrical system malfunctions, resulting in insufficient filter layer cleanliness and affecting the filtration effect in the next stage.

[0004] Traditional iron and manganese removal technologies for drinking water largely rely on electrically controlled equipment (such as aerators, solenoid valves, and automatic backwash controllers), which suffers from high energy consumption, complex maintenance, and poor applicability in remote areas. Existing non-electrically controlled devices often suffer from unstable treatment results due to low aeration efficiency, difficulty in filter media regeneration, or incomplete backwashing. Therefore, there is an urgent need for an energy-saving device that is hydraulically self-driven, simple in structure, and requires no maintenance for extended periods. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide an energy-saving drinking water iron and manganese removal device that does not require power control, utilizes hydraulic energy and adjusts by its own liquid level difference to achieve efficient removal of iron and manganese, and can backwash itself, thus solving the problems of high energy consumption, reliance on electrical control and high equipment cost of traditional technology.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] An energy-saving drinking water iron and manganese removal device has the following specific structure: the municipal water supply pipe is connected to the inlet of the upper water distribution tank, the outlet of the upper water distribution tank is connected to the inlet pipe inside the water collection filter tank through a U-shaped inlet pipe, the inlet pipe is connected to the backwash drain pipe, the water outlet of the backwash drain pipe is connected to the top of the inner filter tank, the inner filter tank is installed on the bottom wall of the water collection filter tank, the water collection filter tank is composed of the inner filter tank and the water collection tank, the filter layer is set in the middle of the inner filter tank, the highest point of the inclined pipe of the backwash drain pipe is connected to the middle of the siphon glass tube, the breaking bucket of the siphon glass tube is set in the upper part of the water collection tank, and the other end of the siphon glass tube is set outside the water collection filter tank and connected to the sewage tank.

[0008] Preferably, a partition is installed inside the upper water distribution tank, and the partition is located between the inlet of the municipal water supply pipe and the outlet of the upper water distribution tank.

[0009] Preferably, the front, rear, and lower ends of the partition are sealed to the upper water distribution tank, and the upper end of the partition does not contact the upper wall of the upper water distribution tank, thus providing space for water to flow through.

[0010] Preferably, the filter layer is disposed on a perforated plate, and the perforated plate is installed on the bottom wall of the inner filter tank by support ribs.

[0011] Preferably, the perforated plate is installed on the inner wall of the filter tank by a fixed support.

[0012] Preferably, the inner filter tank below the perforated plate is provided with a filtered water outlet, which is connected to the water collection tank.

[0013] Preferably, the upper part of the water collection and filtration tank is provided with a clean water outlet that communicates with the water collection tank.

[0014] Preferably, the backwash drain pipe consists of an outlet pipe connected to the water inlet, an upwardly inclined pipe installed outside the water collection filter tank and connected to the outlet pipe, and a drain pipe connected to the inclined pipe, with the drain connected to the sewage tank.

[0015] Preferably, the upper water distribution tank is equipped with a ladder for maintenance, the top cover of the water collection filter tank is provided with a first maintenance port, and the lower part of the water collection filter tank and the inner filter tank are provided with a second maintenance port at the same position.

[0016] Preferably, the second maintenance port is located higher than the filter layer.

[0017] Due to the adoption of the above technical solution, this utility model has the following characteristics and effects:

[0018] This invention is a device for efficiently removing iron and manganese from drinking water. It requires no electricity, utilizes hydraulic energy, and adjusts its own liquid level difference to achieve self-backwashing, cleaning thoroughly without human intervention or external power. In this device, incoming water is redistributed through an upper distribution tank to the filter layer. After filtration, the water flows into a collection tank. When the water in the backwash drain pipe rises to the height of the siphon glass tube's break point, the water stored in the collection tank flows upwards to quickly rinse the filter layer. The rinsed water automatically drains into the backwash drain pipe. After the water in the tank is emptied, water in the distribution tank begins normal filtration again, entering the next cycle.

[0019] This invention requires no external power source; it relies solely on changes in the water level within the tank, guided by the puncture points on the backwash drain pipe and siphon glass tube, to automatically backwash the filter media at set times. The advantages of this invention are that it requires no external power, relies on its own liquid level difference for regulation, ensures thorough cleaning, and requires no manual management.

[0020] This utility model equipment achieves an iron and manganese removal rate of ≥95%, with effluent Fe≤0.28mg / L and Mn≤0.09mg / L; backwash water consumption is reduced by 44.7%, and no external power supply is required throughout the process; it is also suitable for rural and mountainous areas where there is no stable power supply. Attached Figure Description

[0021] Figure 1 This is a top view schematic diagram of the energy-saving drinking water iron and manganese removal device of this utility model.

[0022] Figure 2 This is a side view of the internal structure of the energy-saving drinking water iron and manganese removal device of this utility model.

[0023] Figure 3 This is a schematic diagram of the upper water distribution tank of the energy-saving drinking water iron and manganese removal device of this utility model.

[0024] In the diagram, 1. Municipal water supply pipe, 2. Upper water distribution tank, 3. U-shaped inlet pipe, 4. Water collection and filter tank, 5. First maintenance port, 6. Sewage tank, 7. Backwash drain pipe, 8. Clean water outlet, 9. Second maintenance port, 10. Baffle plate, 11. Inlet pipe, 12. Water pipe outlet, 13. Inner filter tank, 14. Filter layer, 15. Crushing bucket, 16. Siphon glass tube, 17. Sewage pipe, 18. Filtered water outlet, 19. Ladder, 20. Perforated plate, 21. Supporting rib, 22. Water collection tank. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1 , Figure 2 and Figure 3 As shown, an energy-saving drinking water iron and manganese removal device has the following specific structure: the municipal water supply pipe 1 is connected to the inlet of the upper water distribution tank 2, and the outlet of the upper water distribution tank 2 is connected to the inlet pipe 11 of each water collection and filter tank 4 through their respective U-shaped inlet pipes 3. The upper water distribution tank 2 is installed on the water collection and filter tank 4. A partition 10 is installed inside the upper water distribution tank 2. The partition 10 is located between the inlet of the municipal water supply pipe 1 and the outlet of the upper water distribution tank 2. The front, rear, and lower ends of the partition 10 are sealed to the upper water distribution tank 2, and the upper end of the partition 10 is sealed to the upper water distribution tank 2. The upper walls of tank 2 are not in contact, and a space is provided for water flow. The inlet pipe 11 is connected to the backwash drain pipe 7, and the water outlet 12 of the backwash drain pipe 7 is connected to the top of the inner filter tank 13. The inner filter tank 13 is fixedly installed on the bottom wall of the water collection filter tank 4. The water collection filter tank 4 consists of the inner filter tank 13 and the water collection tank 22. A filter layer 14 is provided in the middle of the inner filter tank 13, and the filter layer 14 is installed on the perforated plate 20. The perforated plate 20 is installed on the bottom wall of the inner filter tank 13 by support ribs 21. The perforated plate 20 can also be... The filter can be installed on the inner wall of the filter tank 13 by means of a fixed support, which cannot be used to limit the scope of protection of this utility model; the filter tank 13 below the perforated plate 20 is provided with a filtered water outlet 18, which is connected to the water collection tank 22; the upper part of the water collection filter tank 4 is provided with a clean water outlet 8 connected to the water collection tank 22; the backwash drain pipe 7 is composed of a water outlet pipe connected to the water pipe 12, an upwardly inclined water pipe set outside the water collection filter tank 4 and connected to the water outlet pipe, and a drain pipe connected to the inclined water pipe; the drain is connected to the sewage tank 6; The highest point of the inclined pipe of the flushing drain pipe 7 is connected to the middle of the siphon glass tube 16. The breaking bucket 15 of the siphon glass tube 16 is located in the upper part of the water collection tank 22. The other end of the siphon glass tube 16 is located outside the water collection filter tank 4 and is connected to the sewage tank 6. The sewage tank 6 is connected to the sewage pipe 17. A ladder 19 for maintenance is provided on the upper water distribution tank 2. A first maintenance port 5 is provided on the top cover of the water collection filter tank 4. A second maintenance port 9 is provided on the lower part of the water collection filter tank 4 and on the inner filter tank 13. The position of the second maintenance port 9 is higher than the filter layer 14.

[0027] The above-mentioned filter layer has a 14-layer double-layer filter media structure: the upper layer is modified manganese sand (particle size 0.6-1.2mm, thickness 800mm), which adsorbs and oxidizes Mn²⁺; the lower layer is quartz sand (particle size 0.3-0.6mm, thickness 400mm), which intercepts Fe(OH)3 flocs.

[0028] The aforementioned breaker 15 is located 0.2 meters below the center line of the water inlet pipe 11.

[0029] The working principle of this utility model is as follows:

[0030] Water enters the upper water distribution tank 2 through the municipal water supply pipe 1. After being redistributed by the upper water distribution tank 2, it enters the water collection and filter tank 4 through the U-shaped water inlet pipe 3 and the water inlet pipe 11. It is then filtered through the filter layer 14. The filtered water enters the water collection tank and is directly supplied to the user by the municipal booster pump through the clean water outlet 8, thus completing the iron and manganese removal filtration of the water. The power comes from the municipal water pressure, and this equipment does not need to provide kinetic energy.

[0031] When the resistance of the filter layer 14 causes the water level to rise to the critical height where the highest point of the backwash drain pipe 7 connects to the siphon glass tube 16, the siphon effect is automatically triggered. The water stored in the collection tank 22 flows upwards to quickly flush the filter layer. The flushed water is automatically discharged into the backwash drain pipe 7. After the water stored in the tank is emptied, water in the upper distribution tank 2 begins to flow in and filter normally again, entering the next cycle. Backwashing is achieved using the pressure of the raw water, and the flushing wastewater is discharged into the drain tank 6.

Claims

1. An energy-saving device for removing iron and manganese from drinking water, characterized in that... The specific structure is as follows: the municipal water supply pipe (1) is connected to the inlet of the upper water distribution tank (2), the outlet of the upper water distribution tank (2) is connected to the inlet pipe (11) inside the water collection filter tank (4) through the U-shaped inlet pipe (3), the inlet pipe (11) is connected to the backwash drain pipe (7), the water inlet (12) of the backwash drain pipe (7) is connected to the top of the filter inner tank (13), the filter inner tank (13) is installed on the bottom wall of the water collection filter tank (4), and the water collection... The water filter tank (4) consists of an inner filter tank (13) and a water collection tank (22) installed inside it. A filter layer (14) is installed in the middle of the inner filter tank (13). The highest point of the inclined pipe of the backwash drain pipe (7) is connected to the middle of the siphon glass tube (16). The breaking bucket (15) of the siphon glass tube (16) is installed in the upper part of the water collection tank (22). The other end of the siphon glass tube (16) is installed outside the water collection filter tank (4) and is connected to the sewage tank (6).

2. The energy-saving drinking water iron and manganese removal device according to claim 1, characterized in that... The upper water distribution tank (2) is equipped with a partition (10), which is located between the inlet of the municipal water supply pipe (1) and the outlet of the upper water distribution tank (2).

3. The energy-saving drinking water iron and manganese removal device according to claim 2, characterized in that... The partition (10) is sealed to the upper water distribution tank (2) at the front, back and bottom. The upper end of the partition (10) does not contact the upper wall of the upper water distribution tank (2), and a space is provided for water to flow through.

4. The energy-saving drinking water iron and manganese removal device according to claim 1, characterized in that... The filter layer (14) is disposed on the perforated plate (20), and the perforated plate (20) is installed on the bottom wall of the filter inner tank (13) by the support ribs (21).

5. An energy-saving drinking water iron and manganese removal device according to claim 4, characterized in that... The perforated plate (20) is installed on the inner wall of the filter inner tank (13) by a fixed support.

6. An energy-saving drinking water iron and manganese removal device according to claim 4 or 5, characterized in that... The filter inner tank (13) below the perforated plate (20) is provided with a filter water outlet (18), which is connected to the water collection tank (22).

7. An energy-saving drinking water iron and manganese removal device according to claim 1, characterized in that... The upper part of the water collection and filtration tank (4) is provided with a clean water outlet (8) that is connected to the water collection tank (22).

8. An energy-saving drinking water iron and manganese removal device according to claim 1, characterized in that... The backwash drain pipe (7) consists of an outlet pipe connected to the water pipe opening (12), an upwardly inclined water pipe set outside the water collection filter tank (4) and connected to the outlet pipe, and a drain pipe connected to the inclined water pipe. The drain is connected to the sewage tank (6).

9. An energy-saving drinking water iron and manganese removal device according to claim 1, characterized in that... The upper water distribution tank (2) is equipped with a ladder (19) for maintenance. The top cover of the water collection filter tank (4) is equipped with a first maintenance port (5). The lower part of the water collection filter tank (4) and the inner filter tank (13) are equipped with a second maintenance port (9).

10. An energy-saving drinking water iron and manganese removal device according to claim 9, characterized in that... The second maintenance port (9) is located higher than the filter layer (14).

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