Primary filtered water discharging device of V-shaped filter tank

Abstract

The utility model relates to the technical field of filter tank structural design, in particular to a V-shaped filter tank primary filtration water discharge device which comprises a tank body, the tank body comprises a water inlet tank, an overflow tank, a filter tank, a drainage channel and a sewage bin, two side holes communicated with a primary filtration plate are symmetrically formed in the surface of a wall body between the overflow tank and the filter tank, and a mounting cavity is formed in the wall body; rotating rods are rotationally installed in the two penetrating openings, the rotating rods are fixedly sleeved with baffle components used for guiding primarily filtered water to flow to the drainage holes, one ends of the two rotating rods are fixedly sleeved with gears, and two rack rods are connected between the two gears in an engaged mode; and a sealing plate in sliding contact with the side wall of the mounting cavity is fixedly mounted between the two rack rods. According to the V-shaped filter tank, the rotating rod is controlled to rotate so as to close the baffle plate component and open the drainage hole, so that primarily filtered water is recycled and filtered again, the filtering efficiency of the V-shaped filter tank is improved, and the waste of water resources is reduced.

Description

Technical Field

[0001] This utility model relates to the field of filter structure design technology, and in particular to a V-shaped filter primary filtration water discharge device. Background Technology

[0002] V-type filters are a type of rapid filter, characterized by the use of a coarser, thicker, uniformly sized quartz sand filter layer, and a simultaneous air-water backwashing technology that does not cause the filter layer to expand. On ships, V-type filters can be used to treat domestic sewage, desalinate seawater, or purify collected rainwater, providing freshwater resources that meet drinking standards while reducing pollutant emissions and meeting environmental protection requirements. In the initial stage of filtration immediately after backwashing, the effluent from a V-type filter (commonly known as primary filtration water) is of poor quality, with turbidity, organic matter, and pathogenic microorganism content far exceeding the upper limits of the "Standards for Drinking Water Quality".

[0003] Since the primary filtrate accounts for a small proportion of the total water production, most V-type filters do not have primary filtrate discharge facilities. Instead, they are treated together with the wastewater after backwashing, which not only reduces the filtration efficiency of the filter but also wastes water resources. Utility Model Content

[0004] The purpose of this utility model is to solve the following shortcomings in the prior art: since the proportion of primary filtrate in the total water production is small, most V-type filter beds do not have primary filtrate discharge facilities, but are directly treated together with the sewage after backwashing, which not only reduces the filtration efficiency, but also wastes water resources. Therefore, a V-type filter bed primary filtrate discharge device is proposed.

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

[0006] A V-shaped filter bed primary filtrate discharge device includes a pool body comprising an inlet pool, an overflow pool, a filter bed, a drainage channel, and a wastewater tank. Two primary filter plates and two partition plates are fixedly installed on the inner wall of the filter bed, and the two primary filter plates and two partition plates are symmetrically arranged. The wall surface between the overflow pool and the filter bed has symmetrically opened side holes communicating with the two primary filter plates, and each side hole has an installation cavity inside. The inner wall of the filter bed has a drainage hole and two through-holes communicating with the installation cavity. A rotating rod is rotatably installed in each of the two through-holes. A baffle component for guiding the primary filtrate is fixedly sleeved on the rotating rod. The inner wall of the installation cavity is flush with the drainage hole. An opening is provided at the horizontal plane, and a pipe component for recycling the initial filtered water is provided inside the opening. A sewage outlet is provided on the inner wall of the filter tank, and the sewage outlet is located below the drain hole. An inclined plate for guiding sewage is fixedly installed on the side of the two partition plates that are close to each other. A gear is fixedly sleeved at one end of each of the two rotating rods located in the installation cavity. The gear is meshed with a rack rod. A sealing plate that slides in contact with the side wall of the installation cavity is fixedly installed between the two rack rods. One end of one of the rotating rods extends out of the tank body and is connected to a rotating component for rotating itself. A filter plate component for filtration is provided inside the filter tank, and a clean water outlet is provided on the side wall of the filter tank.

[0007] Preferably, an inlet pipe is fixedly installed on the bottom wall of the inlet pool, and multiple water outlets are opened on the surface of the wall between the inlet pool and the overflow pool, and a pneumatic butterfly valve is fixedly installed in each of the multiple water outlets.

[0008] Preferably, the pipeline component includes a recovery pipe, one end of which is connected to the interior of the installation cavity, and the other end passes through the side wall of the sewage tank and is fixedly connected to the inlet pipe and connected to the interior of the inlet pipe. A one-way valve is provided inside the recovery pipe.

[0009] Preferably, the baffle component includes a water baffle plate fixedly sleeved on the rotating rod, and the surface of the partition plate is provided with an installation groove, with the water baffle plate located in the installation groove.

[0010] Preferably, the filter plate component includes a support layer symmetrically and fixedly installed on the inner wall of the filter tank, the support layer having a plurality of long-handled filter heads that vertically penetrate its surface, and a filter media layer fixedly installed on the upper surface of the support layer.

[0011] Preferably, the rotating component includes a handwheel and a sealing ring. The handwheel is fixedly sleeved on one end of the rotating rod, and the sealing ring, which is in close contact with the side wall of the pool, is fixedly sleeved on the rotating rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] Before filtration begins, the rotating component controls the rotation of the rotating rod, which opens the baffle component located in the mounting slot. The rotating rod, through the cooperation of gears and racks, drives the sealing plate downward until the drain hole connects with the mounting cavity. When filtration begins, as the water level of the pre-filtered water in the filter tank gradually rises until it overflows the partition plate, it flows into the mounting cavity through the drain hole along the baffle plate in the drainage channel. Under the action of the sealing plate, it eventually flows back into the inlet pipe through the recovery pipe, re-recovering and re-filtering the pre-filtered water. This improves the filtration efficiency of the V-type filter tank and reduces water waste. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a V-shaped filter bed primary filtrate discharge device proposed in this utility model;

[0015] Figure 2 This is a front sectional view of the V-shaped filter bed primary filtrate discharge device proposed in this utility model;

[0016] Figure 3 This is a partial cross-sectional view of the installation cavity in a V-shaped filter bed primary filtration discharge device proposed in this utility model.

[0017] Figure 4 This is a side sectional view of the V-shaped filter bed primary filtrate discharge device proposed in this utility model;

[0018] Figure 5 This is a schematic diagram of a partial three-dimensional cross-sectional structure of the installation cavity in a V-shaped filter bed primary filtration water discharge device proposed in this utility model.

[0019] In the diagram: 1. Pool body, 2. Inlet pool, 3. Overflow pool, 4. Filter pool, 5. Drainage channel, 6. Primary filter plate, 7. Partition plate, 8. Rotating rod, 9. Installation cavity, 10. Drainage hole, 11. Sewage outlet, 12. Inclined plate, 13. Gear, 14. Rack and pinion, 15. Sealing plate, 16. Sewage tank, 17. Clean water outlet, 18. Handwheel, 19. Sealing ring, 20. Water baffle, 21. Inlet pipe, 22. Pneumatic butterfly valve, 23. Recovery pipe, 24. Support layer, 25. Long-handled filter head, 26. Filter media layer, 27. Side hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0022] Reference Figures 1-5 A V-shaped filter bed primary filtrate discharge device includes a pool body 1, which comprises an inlet pool 2, an overflow pool 3, a filter bed 4, a drainage channel 5, and a wastewater tank 16. Two primary filter plates 6 and two partition plates 7 are fixedly installed on the inner wall of the filter bed 4, and the two primary filter plates 6 and two partition plates 7 are symmetrically arranged. The wall surface between the overflow pool 3 and the filter bed 4 has symmetrically opened side holes 27 that communicate with the two primary filter plates 6, and an installation cavity 9 is opened inside the overflow pool 3. The inner wall of the filter bed 4 has a cavity connected to the installation cavity 9. The system includes a drain hole 10 and two through-holes. A rotating rod 8 is rotatably mounted in each through-hole. A baffle component for guiding the initial filtered water is fixedly sleeved on the rotating rod 8. The baffle component includes a water-blocking plate 20 fixedly sleeved on the rotating rod 8. An installation groove is formed on the surface of the partition plate 7, and the water-blocking plate 20 is located within the installation groove. An opening is formed on the inner wall of the installation cavity 9 at the same level as the drain hole 10. A pipe component for recovering the initial filtered water is provided within the opening. The pipe component includes a recovery pipe 23, one end of which is connected to… The installation cavity 9 is internally connected, and the other end passes through the side wall of the sewage tank 16 and is fixedly connected to the inlet pipe 21, and is internally connected to the inlet pipe 21. A one-way valve is installed in the recovery pipe 23. A sewage outlet 11 is opened on the inner wall of the filter tank 4, and the sewage outlet 11 is located below the drain hole 10. An inclined plate 12 for guiding sewage is fixedly installed on the side of the two partition plates 7 that are close to each other. A gear 13 is fixedly sleeved at one end of each of the two rotating rods 8 located in the installation cavity 9. The gear 13 is meshed with a rack rod 14. A sealing plate 15 is fixedly installed between the bars 14 and slides in contact with the side wall of the mounting cavity 9. One end of a rotating rod 8 extends out of the pool body 1 and is connected to a rotating component for rotating itself. The filter pool 4 is provided with a filter plate component for filtration. The filter plate component includes a support layer 24 symmetrically fixedly installed on the inner wall of the filter pool 4. The support layer 24 is provided with a plurality of long-handled filter heads 25 that are vertically inserted through its surface. A filter media layer 26 is fixedly installed on the upper surface of the support layer 24. A clean water inlet 17 is opened on the side wall of the filter pool 4.

[0023] Before filtration begins, connect the clean water inlet 17 to the air-water distribution corridor (not shown), then close the valve of this channel. Next, control the rotating rod 8 to rotate via the rotating component. This opens the baffle plate 20 located in the mounting groove, and the rotating rod 8, through the engagement of gear 13 and rack 14, moves the sealing plate 15 downwards until the drain hole 10 connects with the mounting cavity 9. Once filtration begins, the water to be filtered enters the primary filter plate 6 through the side hole 27. The primary filter plate 6 evenly distributes the water, ensuring the water flow is evenly distributed across the cross-section of the filter tank 4. The water level of the primary filtered water in the filter tank 4 gradually rises until it overflows the partition plate 7. Then, it flows through the baffle plate 20 in the drainage channel 5 and into the mounting cavity 9 through the drain hole 10. Under the action of the sealing plate 15, it will eventually be recycled through the recovery pipe 23. The water flows back into the inlet pipe 21 to recycle and re-filter the pre-filtered water. Before a stable filter membrane forms on the surface of the filter media layer 26, the channel valve connected to the clean water outlet 17 can be opened to filter out clean water. Over time, the filter impurities accumulated on the surface of the filter media layer 26 will become thicker and thicker. At this time, the filter tank 4 needs to be backwashed. First, the rotating part is rotated in the opposite direction to move the sealing plate 15 up to block the drain hole 10. As the rotating rod 8 rotates, the baffle plate 20 will be retracted into the installation groove. Then, air is introduced into the clean water outlet 17 through the air-water distribution corridor to backwash away the filter impurities accumulated on the surface of the filter media layer 26. The sewage mixed with filter impurities will flow into the sewage outlet 11 along the inclined plate 12 on the drainage channel 5 and finally enter the sewage tank 16.

[0024] A water inlet pipe 21 is fixedly installed on the bottom wall of the water inlet pool 2. Multiple water outlets are opened on the surface of the wall between the water inlet pool 2 and the overflow pool 3. Each of the multiple water outlets is fixedly installed with a pneumatic butterfly valve 22.

[0025] During filtration, the water to be filtered is introduced into the inlet pipe 21. The water to be filtered will first enter the inlet pool 2, then the pneumatic butterfly valve 22 will be opened, and then the water to be filtered will enter the overflow pool 3, and finally enter the primary filter plate 6 through the two side holes 27.

[0026] The rotating component includes a handwheel 18 and a sealing ring 19. The handwheel 18 is fixedly sleeved on one end of the rotating rod 8, and the sealing ring 19, which is in close contact with the side wall of the pool body 1, is fixedly sleeved on the rotating rod 8.

[0027] Rotating the handwheel 18 turns the lever 8, thereby controlling the opening of the baffle plate 20 and the up-and-down movement of the sealing plate 15. The sealing ring is used to improve the sealing effect of the gap between the handwheel 18 and the pool body 1.

[0028] In this invention, before filtration begins, the clean water inlet 17 is connected to the air-water distribution corridor (not shown), and then the valve of this channel is closed. Then, the rotating component controls the rotating rod 8 to rotate, and the baffle component located in the mounting groove will open. The rotating rod 8 will drive the sealing plate 15 downwards through the cooperation of the gear 13 and the rack 14 until the drain hole 10 is connected to the mounting cavity 9. After filtration begins, the filtered water will enter the primary filter plate 6 from the side hole 27. The primary filter plate 6 will evenly distribute the water inlet to ensure that the water flow can be evenly distributed on the cross-section of the filter pool 4. Then, the water level of the primary filtered water in the filter pool 4 will gradually rise until it overflows the partition plate 7. Then, it will flow into the mounting cavity 9 from the drain hole 10 along the baffle plate 20 in the drainage channel 5. Under the action of the sealing plate 15, it will eventually flow back to the inlet pipe 21 through the recovery pipe 23 to re-recover and re-filter the primary filtered water, thereby improving the filtration efficiency of the filter pool 4 and reducing the waste of water resources.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A V-type filter bed primary filtrate discharge device, comprising a tank body (1), characterized in that, The pool body (1) includes an inlet pool (2), an overflow pool (3), a filter pool (4), a drainage ditch (5), and a sewage tank (16). The inner wall of the filter pool (4) is fixedly installed with two primary filter plates (6) and two partition plates (7). The two primary filter plates (6) and the two partition plates (7) are symmetrically arranged. The wall surface between the overflow pool (3) and the filter pool (4) is symmetrically provided with side holes (27) that communicate with the two primary filter plates (6), and an installation cavity (9) is provided inside. The inner wall of the filter pool (4) is provided with a drainage hole (10) that communicates with the installation cavity (9) and two through holes. A rotating rod (8) is rotatably installed in each of the two through holes. A baffle component for guiding the primary filtered water is fixedly sleeved on the rotating rod (8). The inner wall of the installation cavity (9) is opened at the same level as the drainage hole (10). The filter tank (4) has an opening, and a pipe component for recycling the initial filtered water is provided inside the opening. A sewage outlet (11) is provided on the inner wall of the filter tank (4). The sewage outlet (11) is located below the drain hole (10). An inclined plate (12) for guiding sewage is fixedly installed on the side of the two partition plates (7) that are close to each other. A gear (13) is fixedly sleeved on one end of each of the two rotating rods (8) located in the mounting cavity (9). The gear (13) is meshed with a rack rod (14). A sealing plate (15) that slides in contact with the side wall of the mounting cavity (9) is fixedly installed between the two rack rods (14). One end of one of the rotating rods (8) extends out of the tank body (1) and is connected to a rotating component for rotating itself. A filter plate component for filtration is provided inside the filter tank (4). A clean water outlet (17) is provided on the side wall of the filter tank (4).

2. The V-type filter bed primary filtrate discharge device according to claim 1, characterized in that, A water inlet pipe (21) is fixedly installed on the bottom wall of the water inlet pool (2). Multiple water outlets are opened on the surface of the wall between the water inlet pool (2) and the overflow pool (3). A pneumatic butterfly valve (22) is fixedly installed in each of the multiple water outlets.

3. The V-type filter bed primary filtrate discharge device according to claim 1, characterized in that, The pipeline component includes a recovery pipe (23), one end of which is connected to the interior of the installation cavity (9), and the other end passes through the side wall of the sewage tank (16) and is fixedly connected to the inlet pipe (21), and is connected to the interior of the inlet pipe (21). A one-way valve is provided inside the recovery pipe (23).

4. The V-type filter bed primary filtrate discharge device according to claim 1, characterized in that, The baffle component is used to guide the primary filtered water to the drain hole (10). The baffle component includes a baffle plate (20) fixedly sleeved on the rotating rod (8). The baffle plate (20) has an installation groove on the surface of the partition plate (7) and is located in the installation groove.

5. The V-type filter bed primary filtrate discharge device according to claim 1, characterized in that, The filter plate component includes a support layer (24) symmetrically fixedly installed on the inner wall of the filter tank (4). The support layer (24) is provided with a plurality of long-handled filter heads (25) that are vertically penetrating its surface. A filter media layer (26) is fixedly installed on the upper surface of the support layer (24).

6. The V-type filter bed primary filtrate discharge device according to claim 1, characterized in that, The rotating component includes a handwheel (18) and a sealing ring (19). The handwheel (18) is fixedly sleeved on one end of the rotating rod (8), and the sealing ring (19) is fixedly sleeved on the rotating rod (8) to be in close contact with the side wall of the pool body (1).

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