Multifunctional water purifying and filtering equipment

Abstract

The utility model discloses multifunctional water purification filtering equipment which comprises a first tank body and a second tank body, the first tank body and the second tank body are respectively communicated with a water return pipe through a water inlet branch pipe in a closed loop mode, the water inlet branch pipe is connected with a water inlet pipe, the water return pipe is connected with a water outlet pipe and a first water distribution pipe, and the first water distribution pipe is communicated with the water inlet branch pipe. The water inlet branch pipe is provided with a first valve body, the water return pipe is provided with a second valve body, and the first branch water pipe is provided with a third valve body. According to the multifunctional water purifying and filtering equipment, double water purifying modes of single filtering and double filtering are achieved through the same set of equipment, switching of the single filtering mode, the double filtering mode and the flushing and cleaning mode is achieved through control of all the valve bodies, clear water with two cleanliness degrees is obtained, cleaning is convenient, and the manufacturing cost and the occupied area are saved through intensive design.

Description

Technical Field

[0001] This utility model relates to the field of water purification and filtration technology, and in particular to a multifunctional water purification and filtration device. Background Technology

[0002] Existing water purification and filtration equipment suffers from significant defects in structural design and functional expansion: First, traditional systems often employ a single filtration mode, unable to flexibly switch between single-stage and multi-stage filtration based on the degree of raw water pollution or water demand. This results in insufficient purification effects when treating high-turbidity water, while redundant filtration leads to energy waste in low-turbidity scenarios. Second, the cleaning efficiency of filter media (such as filter sand) is low, and routine backwashing requires an external independent water pump or complex piping system. This is not only cumbersome to operate and results in long downtime, but also leads to uneven backwash water flow distribution, which can cause filter layer caking, resulting in incomplete regeneration of filter media, accumulation of sediment residue, and accelerated filtration efficiency decline after long-term operation. Third, multi-stage filtration systems often use multiple tanks with independent configurations, lacking linkage control between units. This results in large equipment footprint, high redundancy of valves and pipes, and increases manufacturing costs by more than 30%. In addition, traditional equipment cannot achieve different cleanliness levels of effluent (such as industrial reuse and drinking water grade) within the same system, requiring additional deep treatment modules, further increasing construction and operation and maintenance costs. These issues collectively restrict the expansion of applicable scenarios and the economic efficiency of water purification equipment, while existing technologies have not yet provided a systematic solution that takes into account mode switching, efficient cleaning, and compact design.

[0003] It is evident that existing technologies still need improvement and enhancement. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a multifunctional water purification and filtration device, which aims to improve the technical problems of lack of mode switching, poor cleaning and lack of intensive design in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A multifunctional water purification and filtration device includes a first tank and a second tank with identical structures. Both tanks are internally equipped with filter sand, which divides the interior of each tank into a filtration zone and a clear water zone from top to bottom. The filtration zones of the first and second tanks are connected by an inlet pipe, which is connected to a water inlet pipe. A first valve is installed on the inlet pipe, located between the second tank and the water inlet pipe. The clear water zones of the first and second tanks are connected via a return... The water pipes are connected, the return water pipe is connected to the outlet water pipe, the outlet water pipe is connected to the clear water tank, the return water pipe is equipped with a second valve body, the second valve body is located between the outlet water pipe and the first tank, the return water pipe is connected to the first branch water pipe, the first branch water pipe is located between the second valve body and the first tank, the first branch water pipe is connected to the inlet water pipe and is located between the second tank and the first valve body, the first branch water pipe is equipped with a third valve body, the filtration areas of the first tank and the second tank are both equipped with sludge discharge pipes, and the ports of the sludge discharge pipes are equipped with sludge discharge valves.

[0007] The multifunctional water purification and filtration device further includes a second water distribution pipe, the two ends of which are respectively connected to the outlet pipe and the first water distribution pipe, and the second water distribution pipe is located between the third valve body and the return pipe.

[0008] The aforementioned multifunctional water purification and filtration device includes a fourth valve body installed in the second water distribution pipe.

[0009] The aforementioned multifunctional water purification and filtration device includes an inlet valve installed in the inlet pipe.

[0010] The multifunctional water purification and filtration device has an upper end of a sludge discharge pipe connected to the top of the first tank / second tank, and a lower end of the sludge discharge pipe extending downwards to the same height as the bottom of the first tank / second tank. A sludge discharge valve is located at the lower end of the sludge discharge pipe.

[0011] The aforementioned multifunctional water purification and filtration equipment includes a pressure gauge installed on the sludge discharge pipe, with the pressure gauge located at one end of the sludge discharge pipe near the top of the tank.

[0012] The aforementioned multifunctional water purification and filtration device includes a water pump installed on the outlet pipe, with the water pump positioned close to the clear water tank.

[0013] The multifunctional water purification and filtration device further includes a spare pipe, with its two ends connected to the inlet water pipe and the first branch water pipe, respectively. One end of the spare pipe connected to the inlet water pipe is located between the inlet water pipe and the first valve body, and the other end of the spare pipe connected to the first branch water pipe is located on the third valve body near the inlet water pipe.

[0014] The aforementioned multifunctional water purification and filtration device includes a fifth valve body on the spare pipe, which is normally closed.

[0015] Beneficial effects:

[0016] This utility model provides a multifunctional water purification and filtration device, including a first tank and a second tank. Both the first and second tanks are equipped with filter sand to divide the filtration zone and the clear water zone. In single filtration mode, raw water enters the inlet branch pipe through the inlet pipe. The first and second valves are open, and the third valve is closed. The raw water enters both the first and second tanks through the inlet branch pipe, and after filtration by the filter sand, it becomes clear water. The clear water in the second tank flows into the outlet pipe through the return pipe, and the clear water in the first tank flows into the outlet pipe through the return pipe, finally flowing into the clear water tank. In dual filtration mode, raw water enters the inlet branch pipe through the inlet pipe. The first and second valves are closed, and the third valve is open. The raw water enters the first tank through the inlet branch pipe, and after filtration by the filter sand, it becomes primary clear water. This primary clear water enters the first branch pipe through the return pipe, then enters the inlet branch pipe again, and then enters the second tank. After filtration in the second tank, it becomes secondary clear water. This secondary clear water enters the outlet pipe through the return pipe, finally flowing into the clear water tank. During rinsing and cleaning, the first and third valves are closed, while the second valve and two sludge discharge valves are opened. Clean water from the clear water tank flows through the outlet pipe into the return pipe and then into the first and second tanks respectively, flushing the sludge adhering to the filter sand in the first and second tanks upwards. The mixed water containing sludge is discharged from the tanks through the sludge discharge pipe, thus cleaning the first and second tanks. This multi-functional water purification and filtration equipment utilizes a single system to achieve both single and dual filtration modes. Switching between single and dual filtration and rinsing / cleaning modes is achieved through the control of individual valves, resulting in two levels of clean water. Cleaning is convenient, and the compact design saves manufacturing costs and floor space. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of the water purification and filtration device provided by this utility model in single filtration mode;

[0018] Figure 2 A schematic diagram of the dual-filtration mode of the water purification and filtration device provided by this utility model;

[0019] Figure 3 This is a schematic diagram of the backwashing cleaning mode of the water purification and filtration equipment provided by this utility model.

[0020] Figure label:

[0021] 1—First tank 2—Second tank 3—Filter sand

[0022] 4—Water inlet pipe; 5—Water inlet pipe; 6—First valve body

[0023] 7—Return water pipe; 8—Outlet water pipe; 9—Second valve body

[0024] 10—First water distribution pipe; 11—Third valve body; 12—Sludge discharge pipe

[0025] 13—Sludge discharge valve; 14—Second water distribution pipe; 15—Fourth valve body

[0026] 16—Inlet valve 17—Pressure gauge 18—Water pump

[0027] 19—Spare pipe; 20—Fifth valve body. Detailed Implementation

[0028] This utility model provides a multifunctional water purification and filtration device. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0029] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0030] Please see Figures 1 to 3As shown, this utility model provides a multifunctional water purification and filtration device, comprising a first tank 1 and a second tank 2 with identical structures. Both tanks 1 and 2 have filter sand 3 installed inside, dividing the interior of the tank into a filtration zone and a clear water zone from top to bottom. The filtration zones of the first tank 1 and the second tank 2 are connected via an inlet pipe 4, which is connected to an inlet pipe 5. A first valve body 6 is installed on the inlet pipe 4, located between the second tank 2 and the inlet pipe 5. The clear water zones of the first tank 1 and the second tank 2 are connected via a return water pipe. The return water pipe 7 is connected to the outlet water pipe 8, which is connected to the clear water tank. The return water pipe 7 is equipped with a second valve body 9, located between the outlet water pipe 8 and the first tank 1. The return water pipe 7 is connected to a first branch water pipe 10, located between the second valve body 9 and the first tank 1. The first branch water pipe 10 is connected to the inlet water pipe 4 and located between the second tank 2 and the first valve body 6. A third valve body 11 is installed on the first branch water pipe 10. Both the first tank 1 and the second tank 2 have sludge discharge pipes 12, and sludge discharge valves 13 are installed at the ports of the sludge discharge pipes 12. In this embodiment, the first valve body 6, the third valve body 11, and the sludge discharge valve 13 can be solenoid valves to control the flow of water.

[0031] When the single filtration mode is turned on, the raw water enters the inlet branch pipe 4 from the inlet pipe 5, the first valve body 6 and the second valve body 9 are opened, and the third valve body 11 is closed. The raw water enters the first tank 1 and the second tank 2 respectively through the inlet branch pipe 4. After being filtered by the filter sand 3, the clean water is obtained. The clean water in the second tank 2 flows into the outlet pipe 8 through the return pipe 7, and the clean water in the first tank 1 enters the outlet pipe 8 through the return pipe 7. Finally, they all flow into the clean water pool.

[0032] When the dual filtration mode is activated, raw water enters the inlet branch pipe 4 from the inlet pipe 5. The first valve body 6 and the second valve body 9 are closed, and the third valve body 11 is opened. The raw water enters the first tank 1 through the inlet branch pipe 4 and is filtered by the filter sand 3 to obtain primary clean water. The primary clean water enters the first branch pipe 10 through the return pipe 7, then enters the inlet branch pipe 4 and enters the second tank 2. It is filtered by the second tank 2 to obtain secondary clean water. The secondary clean water enters the outlet pipe 8 through the return pipe 7 and finally flows to the clean water pool.

[0033] During rinsing and cleaning, the first valve body 6 and the third valve body 11 are closed, while the second valve body 9 and the two sludge discharge valves 13 are opened. The clean water from the clear water tank enters the return water pipe 7 through the outlet pipe 8 and then enters the first tank 1 and the second tank 2 respectively. This flushes the sludge attached to the filter sand 3 in the first tank 1 and the second tank 2 upwards. The mixed water containing sludge is discharged from the tank through the sludge discharge pipe 12, thus cleaning the first tank 1 and the second tank 2.

[0034] This multi-functional water purification and filtration equipment utilizes a single set of devices to achieve both single and dual filtration modes. By controlling each valve, it switches between single and dual filtration modes as well as flushing and cleaning modes, resulting in two levels of clean water. It is easy to clean, and its compact design saves on manufacturing costs and floor space.

[0035] Please see Figures 1 to 3 As shown, it also includes a second water distribution pipe 14, with its two ends connected to the outlet pipe 8 and the first water distribution pipe 10, respectively. The second water distribution pipe 14 is located between the third valve body 11 and the return water pipe 7, and a fourth valve body 15 is provided on the second water distribution pipe 14. In this embodiment, the fourth valve body 15 is a solenoid valve; the second valve body 9 is a check valve, which ensures that the water flow in the return water pipe 7 can only flow from the second tank 2 to the first tank 1, preventing the clean water filtered by the first tank 1 from directly entering the second tank 2 from the return water pipe 7, thus preventing the dual-stage filtration function from being achieved. At the same time, it can realize the backflow of clean water to the first tank 1 to achieve the backwash cleaning function. The second valve body 9, being a check valve, would affect the flow of clean water from the first tank 1 into the outlet pipe 8 during single filtration mode. Therefore, a second branch pipe 14 is provided, connecting the first branch pipe 10 and the outlet pipe 8, allowing clean water from the first tank 1 to enter the outlet pipe 8 during single filtration. A fourth valve body 15 is provided to control the opening and closing of the second branch pipe 14 to coordinate with the switching between single and dual filtration modes. In single filtration mode, the fourth valve body 15 is open; in dual filtration mode and backwash cleaning mode, the fourth valve body 15 is closed.

[0036] Please see Figures 1 to 3 As shown, the water inlet pipe 5 is equipped with a water inlet valve 16. In this embodiment, the water inlet valve 16 is a check valve. Water can only enter the water inlet pipe 5 from the external raw water tank. The water in the water inlet pipe 5 cannot flow outward to avoid the mixed water during backwashing entering the raw water tank.

[0037] Please see Figures 1 to 3 As shown, the upper end of the sludge discharge pipe 12 is connected to the top of the first tank 1 / second tank 2, and the lower end of the sludge discharge pipe 12 extends downward to the same height as the bottom of the first tank 1 / second tank 2. The sludge discharge valve 13 is located at the lower end of the sludge discharge pipe 12. In this embodiment, the sludge discharge valve 13 is normally closed and is only opened during backwashing. The outlet height of the sludge discharge pipe 12 is the same as the bottom of the tank, allowing the mixed water to be discharged by gravity.

[0038] Please see Figures 1 to 3 As shown, a pressure gauge 17 is installed on the sludge discharge pipe 12, located at one end of the sludge discharge pipe 12 near the top of the tank. During application, the first tank 1, the second tank 2, and all pipes are filled with liquid. The pressure gauge 17 is used to monitor the water pressure in the first tank 1 and the second tank 2 in real time. If the water pressure is too high, it indicates that there is too much sludge adhering to the filter sand 3, resulting in a slower filtration effect, requiring rinsing and cleaning.

[0039] Please see Figures 1 to 3 As shown, a water pump 18 is installed on the outlet pipe 8, and the water pump 18 is located near the clear water tank. In this embodiment, the water pump 18 is mainly used to pump clear water from the clear water tank to the outlet pipe 8, so that the clear water enters the first tank 1 and the second tank 2 through the return pipe 7 to rinse and clean the mud and sand in the first tank 1 and the second tank 2. The water pump 18 can apply backwash water pressure to increase the backwash force, thereby improving the cleaning effect. When necessary, the water pump 18 can also be used to pump clear water from the outlet pipe 8 to the clear water tank.

[0040] Please see Figures 1 to 3 As shown, it also includes a spare pipe 19, with its two ends connected to the inlet water pipe 4 and the first branch water pipe 10, respectively. One end of the spare pipe 19 connected to the inlet water pipe 4 is located between the inlet water pipe 5 and the first valve body 6, and the other end of the spare pipe 19 connected to the first branch water pipe 10 is located on the third valve body 11 near the inlet water pipe 4. A fifth valve body 20 is provided on the spare pipe 19, and the fifth valve body 20 is normally closed. In this embodiment, the spare pipe 19 is an extension of the first branch water pipe 10, which is connected to the inlet water pipe 4 between the first valve body 6 and the second tank 2 via another bent pipe. The fifth valve body 20 can replace the first valve body 6. The spare pipe 19 and the fifth valve body 20 are not used under normal circumstances, and the fifth valve body 20 is in a normally closed state. When the first valve body 6 malfunctions and cannot be opened, the fifth valve body 20 can be opened, allowing raw water to flow from the backup pipe 19 into the bent section of the first water distribution pipe 10 and then into the inlet water pipe 4, and then into the second tank 2, thus achieving a single filtration mode.

[0041] In summary, this utility model achieves both single-filtration and dual-filtration water purification modes through a single set of equipment. The switching between single-filtration and dual-filtration modes as well as the flushing cleaning mode is achieved through the control of each valve, resulting in two levels of clean water. It is easy to clean, and the compact design saves manufacturing costs and floor space.

[0042] It is understood that those skilled in the art can make equivalent substitutions or modifications based on the technical solution and inventive concept of this utility model, and all such substitutions or modifications should fall within the protection scope of the appended claims.

Claims

1. A multifunctional water purification and filtration device, characterized in that, The system includes a first tank (1) and a second tank (2) with identical structures. Both tanks have filter sand (3) inside, which divides the interior of the tanks into a filtration zone and a clean water zone from top to bottom. The filtration zone of the first tank (1) and the filtration zone of the second tank (2) are connected by an inlet pipe (4), which is connected to an inlet pipe (5). The inlet pipe (4) is equipped with a first valve body (6), which is located between the second tank (2) and the inlet pipe (5). The clean water zone of the first tank (1) and the clean water zone of the second tank (2) are connected by a return pipe (7), which is connected to an outlet pipe. 8) The outlet pipe (8) is connected to the clear water tank. The return pipe (7) is equipped with a second valve body (9). The second valve body (9) is located between the outlet pipe (8) and the first tank (1). The return pipe (7) is connected to a first branch pipe (10). The first branch pipe (10) is located between the second valve body (9) and the first tank (1). The first branch pipe (10) is connected to the inlet pipe (4) and is located between the second tank (2) and the first valve body (6). The first branch pipe (10) is equipped with a third valve body (11). The filtration areas of the first tank (1) and the second tank (2) are both equipped with sludge discharge pipes (12). The port of the sludge discharge pipe (12) is equipped with a sludge discharge valve (13).

2. The multifunctional water purification and filtration device according to claim 1, characterized in that, It also includes a second water distribution pipe (14), the two ends of which are connected to the outlet pipe (8) and the first water distribution pipe (10) respectively. The second water distribution pipe (14) is located between the third valve body (11) and the return water pipe (7).

3. The multifunctional water purification and filtration device according to claim 2, characterized in that, The second water distribution pipe (14) is equipped with a fourth valve body (15).

4. The multifunctional water purification and filtration device according to claim 1, characterized in that, The water inlet pipe (5) is equipped with a water inlet valve (16).

5. The multifunctional water purification and filtration device according to claim 1, characterized in that, The upper end of the sludge discharge pipe (12) is connected to the top of the first tank (1) / second tank (2), and the lower end of the sludge discharge pipe (12) extends downward to the same height as the bottom of the first tank (1) / second tank (2). The sludge discharge valve (13) is located at the lower end of the sludge discharge pipe (12).

6. The multifunctional water purification and filtration device according to claim 5, characterized in that, A pressure gauge (17) is installed on the sludge discharge pipe (12), and the pressure gauge (17) is located at one end of the sludge discharge pipe (12) near the top of the tank.

7. The multifunctional water purification and filtration device according to claim 1, characterized in that, A water pump (18) is installed on the water outlet pipe (8), and the water pump (18) is located near the clear water tank.

8. The multifunctional water purification and filtration device according to claim 1, characterized in that, It also includes a spare pipe (19), with its two ends connected to the inlet water pipe (4) and the first branch water pipe (10) respectively. One end of the spare pipe (19) connected to the inlet water pipe (4) is located between the inlet water pipe (5) and the first valve body (6), and the other end of the spare pipe (19) connected to the first branch water pipe (10) is located on the third valve body (11) near the inlet water pipe (4).

9. The multifunctional water purification and filtration device according to claim 8, characterized in that, The spare pipe (19) is equipped with a fifth valve body (20), which is normally closed.

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