Full-automatic high-efficiency filter

Abstract

The utility model belongs to the technical field of filters, and particularly relates to a full-automatic high-efficiency filter which comprises a filter shell, a water inlet pipe and a water outlet pipe which are respectively arranged at the upper end and the lower end of the filter shell, and a water distributor and a filtering structure which are arranged in the filter shell. The water distributor comprises a water tank and water distribution pipes radially arranged on the side wall of the water tank, the top of the water tank is connected with a water inlet pipe, a plurality of middle water distribution small holes are uniformly distributed in the bottom of the water tank, each water distribution pipe is of a semicircular water pipe structure with a plug at the tail, and a plurality of external water distribution small holes are uniformly distributed in the bottom of each water distribution pipe; the filtering structure is located below the water distributor and comprises a plurality of filtering layers which are sequentially arranged from top to bottom, partition plates arranged below the filtering layers and a supporting water filtering layer arranged on the bottommost layer. The water distributor solves the technical problems that the flow velocity of water flow at the water inlet of the filter is too high, the water flow is not uniformly distributed, the first layer of quartz sand filter material is impacted, the channeling phenomenon of the first layer of quartz sand occurs, and the filtering effect is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of filters, and particularly relates to a fully automatic high-efficiency filter. Background Art

[0002] The quartz sand filter is a pressure filter that utilizes the refined quartz sand filter media filled in the filter. When the influent water flows through the filter layer from top to bottom, it effectively intercepts and removes suspended solids, organic matter, colloidal particles, microorganisms, chlorine, odor, and some heavy metal ions in the water, thereby achieving the effect of reducing water turbidity and purifying water quality.

[0003] The existing quartz sand filters have poor water distribution effect and are prone to form water distribution dead zones. When the influent water volume is large, the surface of the filter media is unevenly scoured, and channeling is likely to occur. The filter media is easily lost, greatly reducing the filtering effect of the filter and affecting the effluent water quality.

[0004] During the backwashing process of the existing technology filters, the backwashing water or the combination of steam and water enters from the bottom of the filter, which will stir the entire sand layer. (The filter sand layer is generally divided into three layers from top to bottom. The first filter layer has quartz sand particles with a diameter of 3.0 - 5 mm and a filter layer height of 200 - 300 mm. The second filter layer is the main filter layer with quartz sand particles having a diameter of 0.4 - 0.6 mm and a filter layer height of 600 - 800. The third layer is the support layer with quartz sand particles having a diameter of 1.2 - 2.0 mm and a filter layer height of 200 - 300). This causes the upper quartz sand to sink and the lower quartz sand to be flushed into the upper layer, reducing the filtering effect of the filter.

[0005] Based on the above problems, it is of great practical significance to design a new high-efficiency filter. Content of the Utility Model

[0006] The utility model provides a fully automatic high-efficiency filter to solve the problems existing in the above-mentioned prior art.

[0007] The technical solution adopted by the utility model to solve this problem is as follows:

[0008] A fully automatic high-efficiency filter includes a filter housing, an influent pipe and an effluent pipe respectively arranged at the upper and lower ends of the filter housing, and further includes:

[0009] A water distributor, which includes a water tank and water distribution pipes radially arranged on the side wall of the water tank. The top of the water tank is connected to the influent pipe, and a number of central water distribution small holes are evenly distributed at the bottom. The water distribution pipes are semi-circular pipe structures with plugs at the tails, and a number of external water distribution small holes are evenly distributed at the bottom of the water distribution pipes;

[0010] A filtering structure is located below the water distributor. The filtering structure includes several filtering layers arranged one above the other, a partition plate arranged below the filtering layers, and a supporting water filtering layer arranged at the bottommost layer.

[0011] In the above technical solution, the filter housing includes an upper head, a tank body, a lower head, and support legs welded together from top to bottom. An automatic exhaust valve, a pressure gauge, and a manhole are arranged on the upper head, and a discharge port is arranged at the bottom of the side wall of the tank body.

[0012] In the above technical solution, a first electric valve and a water inlet sampling port are arranged on the water inlet pipe, and a third electric valve and a water outlet sampling port are arranged on the water outlet pipe.

[0013] In the above technical solution, the water tank is of a cylindrical structure. Each water distribution pipe is uniformly arranged in a radial pattern on the circumferential side wall of the water tank, and each water distribution pipe is located on the same water distribution plane.

[0014] In the above technical solution, a plurality of water outlet ports corresponding to the water distribution pipes one by one are uniformly arranged on the circumferential side wall of the water tank, and the bottom plane of the water distribution pipe is not lower than the bottom plane of the water tank.

[0015] In the above technical solution, the water distribution pipe is a semi-circular water pipe structure with an open upper part. The head of the water distribution pipe is fixedly connected to the water outlet port in a circular pipe shape, and a semi-circular plug is welded to the tail of the water distribution pipe.

[0016] In the above technical solution, the filtering layer includes at least two layers of quartz sand laid one above the other, and the particle sizes of the quartz sand in different layers are the same or different.

[0017] In the above technical solution, the partition plate is a mesh partition plate whose outer contour fits the inner contour of the tank body, and the pore size of the mesh of the mesh partition plate is smaller than the particle size of the adjacent quartz sand.

[0018] In the above technical solution, the supporting water filtering layer includes a supporting layer and a load-bearing fixed water filtering cap mounting plate arranged up and down. Quartz sand is laid in the supporting layer. The outer contour of the load-bearing fixed water filtering cap mounting plate fits the inner contour of the tank body. A plurality of water filtering holes are evenly distributed on the load-bearing fixed water filtering cap mounting plate, and water filtering caps are arranged above the water filtering holes.

[0019] In the above technical solution, a backwashing structure is further included. The backwashing structure includes a backwashing water outlet pipe connected to the water inlet pipe between the first electric valve and the water distributor, and a second electric valve is arranged on the backwashing water outlet pipe.

[0020] The advantages and positive effects of the present utility model are:

[0021] 1. The water distributor in the present utility model solves the technical problems that the water flow velocity at the water inlet of the filter is too large and unevenly distributed, which impacts the first layer of quartz sand filter media, resulting in channeling of the first layer of quartz sand and reducing the filtration effect.

[0022] 2. In the present utility model, during the sewage filtration process, part of the water flowing in from the water inlet pipe flows down through the central water distribution small holes of the water distributor, and the other part converges in each water distribution pipe in the water distribution plane. The stronger water flow is dispersed in each water distribution pipe and then flows down through the external water distribution small holes of the water distribution pipe, and further flows down from the upper part of the water distribution pipe, without directly forming a strong impact water flow. The water impact force received at each part of the filter layer is smaller and more uniform.

[0023] 3. In the present utility model, during the backwashing process, the water filtration layer and the water distributor can play a role in slowing down the water flow velocity and reducing the agitation of the overall sand layer by the water flow, thereby making the backwashing smoother and achieving a better backwashing effect.

[0024] 4. In the present utility model, a mesh partition is placed between every two layers of quartz sand. For the convenience of installation and replacement, the partition material is made of high-quality soft plastic. In this way, during normal filtration and backwashing, the mixing of the upper and lower layers of quartz sand is avoided, ensuring the filtration effect of the filter and extending the service life of the filter.

[0025] 5. In the present utility model, during the filtration process, the water filtration plate and the water filtration cap can play a role in supporting the quartz sand, and the water flow can flow out through the water filtration through slots and water filtration holes in the water filtration cap without affecting the water filtration function; during the backwashing process, the water entering from the water outlet pipe can flow upward through the water filtration holes and the water filtration cap, which can slow down the water flow velocity and achieve a better backwashing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The technical solutions of the present utility model will be further described in detail below in conjunction with the drawings and embodiments. However, it should be understood that these drawings are only designed for explanatory purposes and thus do not limit the scope of the present utility model. In addition, unless otherwise specified, these drawings are only intended to conceptually illustrate the structural configurations described herein and are not necessarily drawn to scale.

[0027] Figure 1 is the structural schematic diagram of the present utility model;

[0028] Figure 2 is Figure 1 the top view of

[0029] Figure 3 is the perspective view of the present utility model;

[0030] Figure 4 is the structural schematic diagram of the water distributor;

[0031] Figure 5 It is a bottom view of the water distributor;

[0032] Figure 6 It is Figure 5 a sectional view along E-E.

[0033] In the figure: 1 - water inlet pipe; 2 - water outlet pipe; 3 - water tank; 4 - water distribution pipe; 5 - middle water distribution small holes; 6 - plug; 7 - external water distribution small holes; 8 - filter layer; 9 - partition board; 10 - load-bearing fixed filter cap installation plate; 11 - upper head; 12 - tank body; 13 - lower head; 14 - support leg; 15 - automatic exhaust valve; 16 - pressure gauge; 17 - manhole; 18 - discharge port; 19 - first electric valve; 20 - water inlet sampling port; 21 - third electric valve; 22 - water outlet sampling port; 23 - backwash water outlet pipe; 24 - second electric valve; 25 - supporting layer. Specific embodiments

[0034] First of all, it should be noted that the following will specifically illustrate the specific structure, characteristics and advantages of the present invention by way of examples. However, all descriptions are only for the purpose of illustration and should not be construed as any limitation to the present invention. In addition, any single technical feature described or implied in each embodiment mentioned in this article, or any single technical feature shown or implied in each drawing, can still be arbitrarily combined or deleted between these technical features (or their equivalents), so as to obtain more other embodiments of the present invention that may not be directly mentioned in this article. In addition, for the sake of simplifying the drawings, the same or similar technical features may only be marked in one place in the same drawing.

[0035] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "setting", "connection", "fixation", "swivel connection" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following will be combined with Figures 1-5 to specifically illustrate the present invention. Embodiment

[0036] A fully automatic high-efficiency filter, comprising a filter housing and a water inlet pipe 1 and a water outlet pipe 2 respectively arranged at the upper and lower ends of the filter housing, and further comprising a water distributor and a filtering structure arranged in the filter housing, wherein:

[0037] The water distributor includes a water tank 3 and water distribution pipes 4 radially arranged on the side wall of the water tank 3. The top of the water tank 3 is connected to a water inlet pipe 1, and a number of central water distribution small holes 5 are evenly distributed at the bottom. The water distribution pipes 4 are semi-circular pipe structures with plugs 6 at the tails, and a number of external water distribution small holes 7 are evenly distributed at the bottom of the water distribution pipes 4;

[0038] The filtering structure is located below the water distributor. The filtering structure includes several filtering layers 8 arranged one above the other, partitions 9 arranged below each filtering layer 8, and a supporting water filtering layer arranged at the bottom layer.

[0039] In this embodiment, the water distributor is composed of three parts: a water inlet pipe 1, a water tank 3, and eight evenly distributed water distribution pipes 4. Eight water outlets are evenly distributed at the bottom of the side wall of the water tank 3 and are respectively connected to the water distribution pipes 4 one by one. Central water distribution small holes 5 are evenly distributed at the bottom of the water tank 3. Preferably, they are evenly distributed radially at the bottom of the water tank 3. The main body of the water distribution pipe 4 is a semi-circular pipe structure. There is a semi-circular plug at the tail of the water distribution pipe 4, and a row of evenly distributed external water distribution small holes 7 are opened at the bottom of the water distribution pipe 4; Several filtering layers are laid in the filter housing. The filtering layer includes at least two layers of quartz sand. A partition 9 is arranged below the filtering layer 8 to play a supporting role. For convenient installation and replacement, the partition 9 can be made of high-quality soft plastic, so that during normal filtration and backwashing, the mixing of the upper and lower quartz sand layers is avoided, ensuring the filtering effect of the filter and extending the service life of the filter; In addition, a supporting water filtering layer is also arranged at the bottom layer, which can play a role in supporting and filtering water. During specific operation: Water flows from the water inlet, through the water inlet pipe into the water tank 3 of the water distributor. The water flows from the water tank 3 into the eight evenly distributed water distribution pipes 4, and then flows out from the water distribution holes at the bottom of the water distribution pipes 4. At the same time, it is also scattered from above the water distribution pipes 4. The water distribution holes evenly distributed at the bottom of the water tank 3 also drain downward at the same time, so that the water flow can be evenly scattered inside the filter. The water flow passes through the filtering layer for filtration and finally is discharged through the water outlet pipe. The above-mentioned water distributor solves the technical problems that the water flow velocity at the water inlet of the filter is too large, the distribution is uneven, which impacts the first layer of quartz sand filter material, resulting in the phenomenon of channeling in the first layer of quartz sand and reducing the filtering effect.

[0040] Furthermore, it can also be considered in this embodiment that the filter housing includes an upper head 11, a tank body 12, a lower head 13, and support legs 14 welded together from top to bottom. An automatic exhaust valve 15, a pressure gauge 16, and a manhole 17 are arranged on the upper head 11. A discharge port 18 is arranged at the bottom of the side wall of the tank body 12.

[0041] Furthermore, it can also be considered in this embodiment that a first electric valve 19 and a water inlet sampling port 20 are arranged on the water inlet pipe 1, and a third electric valve 21 and a water outlet sampling port 22 are arranged on the water outlet pipe 2.

[0042] Furthermore, it can also be considered in this embodiment that the water tank 3 has a cylindrical structure, and each of the water distribution pipes 4 is uniformly arranged in a radial pattern on the circumferential side wall of the water tank 3, and each of the water distribution pipes 4 is located on the same water distribution plane.

[0043] Furthermore, it can also be considered in this embodiment that a plurality of water outlets corresponding to the water distribution pipes 4 one by one are uniformly formed on the circumferential side wall of the water tank 3, and the bottom plane of the water distribution pipe 4 is not lower than the bottom plane of the water tank 3.

[0044] Furthermore, it can also be considered in this embodiment that the water distribution pipe 4 has a semi-cylindrical water pipe structure with an open upper part. The head of the water distribution pipe 4 is fixedly connected to the water outlet in a circular pipe shape, and a semi-circular plug is welded to the tail of the water distribution pipe 4. With this water distributor, part of the water flowing in from the water inlet pipe flows down through the middle water distribution small holes, and the other part converges within each water distribution plane. The relatively strong water flow is dispersed in each water distribution pipe and then flows down through the external water distribution small holes of the water distribution pipe, and further flows down from the upper part of the water distribution pipe, so that a strong impact water flow will not be directly formed, and the water impact force received at various parts of the filter layer is smaller and more uniform.

[0045] Furthermore, it can also be considered in this embodiment that the filter layer 8 includes at least two layers of quartz sand laid up and down, and the particle sizes of the quartz sand in different layers are the same or different.

[0046] Furthermore, it can also be considered in this embodiment that the partition 9 is a mesh partition with an outer contour adapted to the inner contour of the tank body, and the pore diameter of the mesh of the mesh partition is smaller than the particle size of the adjacent quartz sand. Taking this embodiment as an example, a mesh partition is placed between every two layers of quartz sand. For the convenience of installation and replacement, the partition material is made of high-quality soft plastic, so that during normal filtration and backwashing, the mixing of the upper and lower quartz sand layers is avoided, ensuring the filtration effect of the filter and extending the service life of the filter.

[0047] Furthermore, it can also be considered in this embodiment that the supporting water filtration layer includes a supporting layer 25 and a load-bearing and fixed water filtration cap mounting plate 10. Quartz sand is laid in the supporting layer 25. A number of water filtration holes are evenly distributed on the load-bearing and fixed water filtration cap mounting plate 10. Above the water filtration holes, a water filtration cap 11 is provided, and water filtration through grooves are formed on the water filtration cap. During the filtration process, the load-bearing and fixed water filtration cap mounting plate and the water filtration cap can support the quartz sand, and the water flow can flow out through the water filtration through grooves and water filtration holes in the water filtration cap, without affecting the water filtration function; during the backwashing process, the water entering from the water outlet pipe can flow upward through the water filtration holes and the water filtration cap, which can slow down the water flow rate. The water flow plays a role in backwashing the quartz sand in the supporting layer and the filtration layer. Finally, the water flows into the water tank through the upper part of the water distribution pipe and is discharged through the water inlet pipe and the backwashing water outlet pipe. The water distributor slows down the water flow rate during backwashing, reduces the agitation of the water flow on the overall sand layer, so that the backwashing is smoother and the backwashing effect is better.

[0048] Furthermore, it can also be considered in this embodiment that there is also a backwashing structure, and the backwashing structure includes a backwashing water outlet pipe 23 connected to the water inlet pipe 1 between the first electric valve 19 and the water distributor, and a second electric valve 24 is provided on the backwashing water outlet pipe 23.

[0049] The process flow is as follows:

[0050] 1. Sewage treatment process

[0051] The first electric valve and the third electric valve are automatically opened. Sewage enters from the water inlet pipe at the top of the filter and the first electric valve, and passes through the water distributor → the first filtration layer → the partition →... → the Nth filtration layer → the partition → the supporting layer → the water filtration cap → the water filtration hole → the water outlet pipe → the third electric valve and is discharged. Sampling ports are provided at the water inlet and outlet pipes to sample the sewage and the treated water.

[0052] 2. Backwashing process

[0053] When the filter media needs to be backwashed, the second electric valve and the third electric valve are opened. The backwashing water or the steam-water composition enters the bottom of the filter from the third electric valve and the water outlet pipe, and passes through the water filtration hole → the water filtration cap → the supporting layer → the partition → the Nth filtration layer →... → the partition → the first filtration layer → the water distributor → the second electric valve and the backwashing water outlet pipe and is discharged.

[0054] 3. Full-automatic operation process of the equipment

[0055] Each electric valve can open and close automatically, automatically switching between sewage filtration and filter backwashing mode. After the filter has been used for a period of time, the quartz sand in the filter contains a lot of dirt, and the sewage is not filtered smoothly. At this time, the pressure inside the filter will increase during filtration. When the pressure reaches a certain value, the backwashing mode will be triggered, and the filter will automatically backwash. Reduce the impurity content in the quartz sand, and then switch to the filtration mode again. (When the pressure in the filter tank continues to rise and exceeds the warning value, the exhaust valve will automatically exhaust and trigger an alarm to ensure the safety of the equipment and related personnel).

[0056] The above embodiments describe the present invention in detail, but the above contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of application of the present invention shall still fall within the scope of the patent coverage of the present invention.

Claims

1. A fully automatic high-efficiency filter, comprising a filter housing and a water inlet pipe and a water outlet pipe respectively arranged at the upper and lower ends of the filter housing, characterized in that: Also included is disposed within the filter housing: A water distributor, comprising a water tank and a water distribution pipe radially arranged on the side wall of the water tank, wherein the top of the water tank is connected to the water inlet pipe, and a plurality of middle water distribution holes are evenly distributed on the bottom, and the water distribution pipe is a semicircular water pipe structure with a plug at the tail, and a plurality of external water distribution holes are evenly distributed on the bottom of the water distribution pipe; The filter structure is located below the water distributor, and comprises a plurality of filter layers arranged in sequence up and down, a partition plate arranged under the filter layer, and a supporting water filter layer arranged at the bottom layer.

2. A fully automatic high efficiency filter according to claim 1, characterized in that: The filter housing comprises an upper head, a tank body, a lower head and supporting legs which are welded together from top to bottom. The upper head is provided with an automatic exhaust valve, a pressure gauge and a manhole, and the bottom of the side wall of the tank body is provided with a discharge port.

3. A fully automatic high efficiency filter according to claim 2, characterized in that: The water inlet pipe is provided with a first electric valve and a water inlet sampling port, and the water outlet pipe is provided with a third electric valve and a water outlet sampling port.

4. A fully automatic high efficiency filter according to claim 1, characterized in that: The water tank is of a cylindrical structure, and each of the water distribution pipes is evenly arranged on the circumferential side wall of the water tank in a radial shape, and each of the water distribution pipes is located on the same horizontal distribution plane.

5. A fully automatic high efficiency filter according to claim 4, characterized in that: The circumferential side wall of the water tank is evenly provided with a plurality of water outlets connected to the water distribution pipes in a one-to-one correspondence, and the bottom plane of the water distribution pipe is not lower than the bottom plane of the water tank.

6. A fully automatic high efficiency filter according to claim 5, characterized in that: The water distribution pipe is a semicircular water pipe structure with an open upper portion, the head of the water distribution pipe is in a circular tube shape and is fixedly connected to the water outlet, and a semicircular plug is welded to the tail of the water distribution pipe.

7. A fully automatic high efficiency filter according to claim 1, characterized in that: The filter layer comprises at least two layers of quartz sand laid one above the other, and the particle sizes of the quartz sand in different layers are the same or different.

8. A fully automatic high efficiency filter according to claim 1, characterized in that: The partition is a mesh partition, and the mesh aperture of the mesh partition is smaller than the particle size of the quartz sand adjacent thereto.

9. A fully automatic high efficiency filter according to claim 1, characterized in that: The supporting water filter layer includes upper and lower supporting layers and a load-bearing fixed water filter cap installation plate, wherein quartz sand is laid in the supporting layer, and a plurality of water filter holes are evenly distributed on the load-bearing fixed water filter cap installation plate, and a water filter cap is arranged above the water filter holes.

10. A fully automatic high efficiency filter according to any one of claims 3 to 9, characterized in that: It also includes a backwashing structure, which includes a backwashing outlet pipe connected to the water inlet pipe between the first electric valve and the water distributor, and a second electric valve is arranged on the backwashing outlet pipe.

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