A multi-media water treatment filter

Abstract

The utility model discloses a kind of multi-medium water treatment filters in water purification field, including tank body, tank body is integrally connected by upper tank body, middle tank body, lower tank body, the main part of middle tank body is square structure, and installation plate is provided in middle tank body lower side, installation plate is set to inclined plane, and multiple groups of filter caps are installed on installation plate;Screen plate is provided above installation plate, screen plate is set to inclined plane, and quartz sand is provided above screen plate;The bottom of screen plate both sides is equipped with limit slot, and detachable baffle is installed in limit slot;Upper tank body top is provided with upper connecting pipe, and upper connecting pipe extends downward and is respectively provided with filter water inlet, backwash water outlet in its end;Lower tank body bottom is provided with lower connecting pipe, and lower connecting pipe extends upward and is respectively provided with backwash water inlet, filter water outlet in its end;Valve is provided at filter water inlet, backwash water outlet, backwash water inlet, filter water outlet place.The utility model is high in cleaning efficiency, and backwash effect is good, and maintenance is more efficient.

Description

Technical Field

[0001] This utility model relates to the field of water purification, and in particular to a multi-media water treatment filter. Background Technology

[0002] A search revealed that Chinese utility model patent CN218357568U discloses a multi-media backwash filter, including a tank body. A fixed plate is provided in the lower part of the tank body, and multiple sets of filter caps are provided on the fixed plate. A conical screen plate is provided above the fixed plate, and quartz sand is provided inside the tank body and above the conical screen plate. An upper connecting pipe is provided at the top of the tank body, and the upper connecting pipe extends downward and has an upper transverse connecting pipe at its end. The left end of the upper transverse connecting pipe is the filter inlet, and the right end is the backwash outlet. A lower connecting pipe is provided at the bottom of the tank body, and the lower connecting pipe extends upward and has a lower transverse connecting pipe at its end. The left end of the lower transverse connecting pipe is the backwash inlet, and the right end is the filter outlet. In practical application, the following problems arise: 1. The discharge speed of the circular discharge port is slightly slow, and the working efficiency is slightly low; 2. During rinsing, impurities are discharged from the filter cap, some of which remain between the mounting plate and the screen plate. After backwashing stops, the impurities will fall back onto the filter cap or the mounting plate, resulting in insufficient cleaning of the filter cap. At the same time, the impurities falling onto the mounting plate are not easy to clean due to their flat surface, requiring the use of cleaning tools, which is quite troublesome. Another part will pass through the screen plate into the quartz sand area, resulting in insufficient cleaning during backwashing, leading to impurities remaining in the quartz sand. After restarting the water purification process, the impurities fall back into the filter cap through the screen plate, further reducing the water purification efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a filter that is easy to maintain and replace internal filter media and has a backwashing function.

[0004] The purpose of this utility model is achieved as follows: A multi-media water treatment filter includes a tank body, which is integrally connected to an upper tank body, a middle tank body, and a lower tank body. The main body of the middle tank body is a square structure. An installation plate is provided on the lower side of the middle tank body. The installation plate is set as an inclined surface, and multiple sets of filter caps are installed on the installation plate. A sieve plate is provided above the installation plate. The sieve plate is set as an inclined surface, and quartz sand is provided above the sieve plate. Limiting grooves are provided on both sides of the bottom of the sieve plate, and detachable baffles are installed in the limiting grooves. An upper connecting pipe is provided at the top of the upper tank body. The upper connecting pipe extends downward and has a filter inlet and a backwash outlet respectively at its end. A lower connecting pipe is provided at the bottom of the lower tank body. The lower connecting pipe extends upward and has a backwash inlet and a filter outlet respectively at its end. Valves are provided at the filter inlet, backwash outlet, and filter outlet.

[0005] Preferably, a discharge port is provided at the junction of the middle tank and the upper edge of the screen plate, and a multi-functional port is provided below the discharge port. The junction of the middle tank and the mounting plate is located in the middle area of ​​the multi-functional port; the junction of the middle tank and the lower edge of the screen plate is located at the upper edge of the multi-functional port.

[0006] Preferably, the end of the limiting groove near the discharge port is provided with a stop block, and a gap is left between the stop block and the screen plate.

[0007] Preferably, both the discharge port and the multi-functional port are elongated openings.

[0008] Preferably, the thickness of the baffle is less than the height of the gap, and the width is less than the length of the multi-functional port.

[0009] Compared with the prior art, the advantages of this utility model are:

[0010] 1. The position of the mounting plate has been redesigned so that the upper and lower sides of the mounting plate can be maintained at the same time after the multi-functional port is opened, which facilitates the inspection and replacement of the filter cap; both the discharge port and the multi-functional port are long strip openings that are compatible with the square central tank body, which not only improves the discharge efficiency compared with the traditional round outlet, but also facilitates the installation and removal of the detachable baffle.

[0011] 2. During filter cap backwashing, insert a baffle to block the through holes on the screen plate. After the backwash pump injects water, impurities on the filter cap can be discharged from the multi-functional port, effectively preventing impurities from being flushed back into the quartz sand, ensuring the cleanliness of the quartz sand and improving cleaning efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the external structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0014] Figure 3 This is a top view of the structure of this utility model.

[0015] Figure 4 This is a structural schematic diagram of the sieve plate, limiting groove, stop block, and baffle of this utility model.

[0016] The components include: 1. Tank body; 101. Upper tank body; 102. Middle tank body; 103. Lower tank body; 2. Mounting plate; 3. Filter cap; 4. Screen plate; 401. Limiting groove; 5. Quartz sand; 6. Baffle; 7. Upper connecting pipe; 8. Filter inlet; 9. Backwash outlet; 10. Lower connecting pipe; 11. Backwash inlet; 12. Filter outlet; 13. Discharge port; 14. Multifunctional port; 15. Stop block. Detailed Implementation

[0017] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0018] It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0019] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] like Figure 1-4 As shown, a multi-media water treatment filter includes a tank 1, which is integrally connected by an upper tank 101, a middle tank 102, and a lower tank 103. The main body of the middle tank 102 is square, and an mounting plate 2 is provided on the lower side of the middle tank 102. The mounting plate 2 is set as an inclined surface, and multiple sets of filter caps 3 are installed on the mounting plate 2. A screen plate 4 is provided above the mounting plate 2, and the screen plate 4 is set as an inclined surface. Quartz sand 5 is placed above the screen plate 4. Limiting grooves 401 are provided on both sides of the bottom of the screen plate 4. A detachable baffle 6 is installed inside the limiting groove 401; an upper connecting pipe 7 is provided at the top of the upper tank 101, and the upper connecting pipe 7 extends downward and is respectively provided at its end with a filter inlet 8 and a backwash outlet 9; a lower connecting pipe 10 is provided at the bottom of the lower tank 103, and the lower connecting pipe 10 extends upward and is respectively provided at its end with a backwash inlet 11 and a filter outlet 12; valves are provided at the filter inlet 8, backwash outlet 9, backwash inlet 11, and filter outlet 12.

[0021] like Figure 1-3 As shown, a discharge port 13 is provided at the junction of the middle tank 102 and the upper edge of the sieve plate 4. A multi-functional port 14 is provided below the discharge port 13. The junction of the middle tank 102 and the mounting plate 2 is located in the middle area of ​​the multi-functional port 14. Opening the multi-functional port allows for simultaneous maintenance of both the upper and lower sides of the mounting plate, facilitating the maintenance of the filter cap. The junction of the middle tank 102 and the lower edge of the sieve plate 4 is located at the upper edge of the multi-functional port 14, which facilitates the discharge of internal quartz sand.

[0022] like Figure 4 As shown, the end of the limiting groove 401 near the discharge port 13 is provided with a stop 15. There is a gap between the stop 15 and the screen plate 4. The baffle is inserted into the gap from the multi-functional port, and then the limiting is formed by contact with the baffle.

[0023] like Figure 3 As shown, both the discharge port 13 and the multi-functional port 14 are elongated openings. The elongated openings are compatible with the square central tank body, which improves the discharge efficiency compared to the traditional round outlet, and also facilitates the installation and removal of the detachable baffle.

[0024] like Figure 4 As shown, the thickness of the baffle 6 is less than the height of the gap, and the width is less than the length of the multi-functional port 14.

[0025] The working principle of this utility model is explained as follows:

[0026] Water purification: Control valves to close the backwash outlet and backwash inlet, connect the water to be purified to the filter inlet, the water enters the tank from the top, passes through the quartz sand and filter cap in sequence, and is discharged through the filter outlet;

[0027] Filter cap backwashing: Control valve to close the filter inlet and outlet, connect backwash pump to backwash inlet, open multi-function port, insert baffle to block the through hole on screen plate, backwash pump injects water into tank, and impurities on filter cap are discharged from multi-function port, preventing impurities from being backfilled into quartz sand by water, thus improving cleaning efficiency.

[0028] Quartz sand backwashing: Remove the baffle, close the multi-function port, control the valve to close the filter inlet and filter outlet, connect the backwash pump to the backwash inlet, and the backwash pump injects water into the tank. The friction between air bubbles and quartz sand filter media, the friction between quartz sand filter media particles, and the friction between quartz sand filter media and water are all used to flush away the material trapped in the filter layer and discharge it from the backwash outlet.

[0029] After completing the backwashing of the filter cap and the quartz sand in sequence, the filter cap can be backwashed a second time to avoid leaving impurities during the quartz sand backwashing.

[0030] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention. The technical content for which protection is sought in the present invention has been fully described in the claims.

Claims

1. A multi-media water treatment filter, comprising a tank, characterized in that, The tank consists of an upper tank, a middle tank, and a lower tank, all integrally connected. The main body of the middle tank is square, and an mounting plate with an inclined surface is provided on its lower side. Multiple filter caps are mounted on the mounting plate. A sieve plate with an inclined surface is provided above the mounting plate, and quartz sand is placed on top of the sieve plate. Limiting grooves are provided on both sides of the bottom of the sieve plate, and detachable baffles are installed in the limiting grooves. An upper connecting pipe is provided at the top of the upper tank, extending downward and having a filter inlet and a backwash outlet at its end. A lower connecting pipe is provided at the bottom of the lower tank, extending upward and having a backwash inlet and a filter outlet at its end. Valves are provided at the filter inlet, backwash outlet, and filter outlet.

2. The multi-media water treatment filter according to claim 1, characterized in that, A discharge port is provided at the junction of the middle tank and the upper edge of the screen plate. A multi-functional port is provided below the discharge port. The junction of the middle tank and the mounting plate is located in the middle area of ​​the multi-functional port. The junction of the middle tank and the lower edge of the screen plate is located at the upper edge of the multi-functional port.

3. A multi-media water treatment filter according to claim 1, characterized in that, The end of the limiting groove near the discharge port is provided with a stop block, and a gap is left between the stop block and the screen plate.

4. A multi-media water treatment filter according to claim 1, characterized in that, Both the unloading port and the multi-functional port are elongated openings.

5. A multi-media water treatment filter according to claim 1, characterized in that, The thickness of the baffle is less than the height of the gap, and the width is less than the length of the multi-functional port.

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