Bacteriostatic self-cleaning backwashing security filter

Abstract

The utility model discloses a bacteriostatic self-cleaning backwashing security filter. The bacteriostatic self-cleaning backwashing security filter comprises a shell supporting mechanism and a filtering mechanism arranged in the shell supporting mechanism, the shell supporting mechanism comprises a filter shell, and an input end partition plate and an output end partition plate are fixed in the filter shell; the inside of the filter shell is sequentially divided into a filtering input chamber, a filtering main chamber and a filtering output chamber by the input end partition plate and the output end partition plate; the filtering mechanism comprises a filtering supporting pipe fixed in the filtering main chamber, and a plurality of core filtering plates are fixed on the side wall of the filtering supporting pipe; the backwashing control mechanism can be used for conveniently controlling the circulation sequence of raw water in each cavity in the filter shell, so that the forward filtering work and the reverse self-cleaning work can be conveniently switched, and each core filtering plate can be conveniently subjected to backwashing self-cleaning so as to recover the filtering performance of the filter.

Description

Technical Field

[0001] The utility model relates to the technical field of water filtration and purification, and specifically relates to an antibacterial self-cleaning backwashing security filter. Background Art

[0002] A security filter is a precision filtering device. It is usually installed at the front end of a water treatment system such as reverse osmosis to remove tiny particles, impurities, suspended substances, etc., in order to protect subsequent important treatment equipment, such as a reverse osmosis membrane. The core component of the security filter is the filter element. Common filter element materials include polypropylene (PP), melt-blown filter elements, etc. These filter elements have a high filtering accuracy and can effectively intercept particulate matter with a diameter between 0.1 micrometers and 10 micrometers.

[0003] However, after the filter element is used for a period of time, its filtering performance will decline. Frequent replacement of the filter element is not only cumbersome but also costly. Therefore, it is necessary to backwash and clean the filter element so that it can be reused multiple times, saving costs and improving the overall working efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to provide an antibacterial self-cleaning backwashing security filter, which can more conveniently achieve backwashing self-cleaning to restore the filtering performance of the filter.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An antibacterial self-cleaning backwashing security filter includes a housing support mechanism and a filtering mechanism arranged in the housing support mechanism;

[0007] The housing support mechanism includes a filter housing, and an input end partition and an output end partition are fixed inside the filter housing;

[0008] The input end partition and the output end partition sequentially divide the interior of the filter housing into a filtering input chamber, a filtering main chamber, and a filtering output chamber;

[0009] The filtering mechanism includes a filtering support pipe fixed in the filtering main chamber, and multiple core filtering plates are fixed on the side wall of the filtering support pipe;

[0010] The filtering support pipe divides the filtering main chamber into a filtering interception chamber and a filtering outer discharge chamber;

[0011] The input end partition is provided with multiple filtering input holes connecting the filtering input chamber and the filtering interception chamber, and the output end partition is provided with multiple filtering outer discharge holes connecting the filtering outer discharge chamber and the filtering output chamber;

[0012] An external drain pipe for backwashing, which is connected to the filtration interception chamber, is fixed to the outer side of the filter housing, and an external drain control valve for backwashing is provided on the external drain pipe for backwashing.

[0013] Preferably, a total input pipe connected to the filtration input chamber is fixed to the outer side of the filter housing, and a total output pipe connected to the filtration output chamber is fixed to the outer side of the filter housing.

[0014] Note: One end of the filter housing to which the total output pipe is fixed is fixedly connected by threads, facilitating the removal of the end to which the total output pipe is fixed. The output end partition is also fixedly connected to the inner side wall of the filter housing by threads. After removing the output end partition, the filter support pipe can be taken out of the filter housing, thereby facilitating the replacement of each core filter plate.

[0015] Preferably, a backwashing control mechanism is provided in the filtration input chamber. The backwashing control mechanism includes a backwashing flow-through shell fixed to the input end partition and on one side of the filtration input chamber. The lower end of the backwashing flow-through shell is connected to the filtration external drain chamber. A forward conduction control ring is fixed to the outer side of the backwashing flow-through shell. The forward conduction control ring has a plurality of forward conduction holes penetrating along a direction parallel to its axis, and the plurality of forward conduction holes are in one-to-one correspondence with each filtration input hole. A plurality of forward conduction grooves are provided on the outer side of the forward conduction control ring, and the plurality of forward conduction grooves are in one-to-one correspondence with each forward conduction hole.

[0016] A backwashing control ring is rotatably connected to the outer side of the backwashing flow-through shell. The backwashing control ring has a plurality of forward conduction cooperation holes penetrating along a direction parallel to its axis. A plurality of backwashing through holes extending radially along the backwashing control ring are provided on the inner side of the backwashing control ring, and the plurality of backwashing through holes are in one-to-one correspondence with each forward conduction cooperation hole. A plurality of backwashing cooperation through holes communicating inside and outside are provided on the side wall of the backwashing flow-through shell.

[0017] An external backwashing drive receiving pipe connected to the filtration input chamber is fixed to the outer side of the filter housing. A drive control piston is slidably connected in the external backwashing drive receiving pipe. A control ring drive pull rod is provided between the drive control piston and the backwashing control ring. A control ring drive telescopic rod for driving the drive control piston to move is provided in the external backwashing drive receiving pipe.

[0018] Note: The backwashing control mechanism can be used to conveniently control the flow sequence of the raw water in each chamber inside the filter housing, facilitating the switching between the forward filtration operation and the reverse self-cleaning operation.

[0019] Preferably, a backwashing stirring mechanism is provided on the input end partition. The backwashing stirring mechanism includes a backwashing stirring shaft rotatably connected inside the backwashing flow-through shell. The lower end of the backwashing stirring shaft extends into the filter support pipe, and a plurality of backwashing stirring blades are fixed to the part of the backwashing stirring shaft extending into the filter support pipe.

[0020] One end of the backwashing stirring shaft inside the backwashing flow housing is fixed with a stirring drive impeller.

[0021] Note: The stirring action of multiple backwashing stirring blades is utilized to more thoroughly clean each core filter plate.

[0022] Compared with the prior art, the beneficial effects of the present utility model are reflected in the following aspects:

[0023] 1. The structure of the present utility model is reasonably designed. The backwashing control mechanism can conveniently control the flow sequence of raw water in each chamber inside the filter housing, facilitating the switching between the forward filtration operation and the reverse self-cleaning operation, and facilitating the backwashing self-cleaning of each core filter plate to restore the filtration performance of the filter.

[0024] 2. The present utility model is convenient to operate. During the backwashing self-cleaning process, the raw water drives the stirring drive impeller, the backwashing stirring shaft and the backwashing stirring blades to rotate together, and the stirring action of multiple backwashing stirring blades is utilized to more thoroughly clean each core filter plate.

[0025] 3. One end of the filter housing where the total output pipe is fixed is fixedly connected by threads, facilitating the removal of the end where the total output pipe is fixed. The output end partition is also fixedly connected to the inner side wall of the filter housing by threads. After removing the output end partition, the filter support pipe can be taken out from the filter housing, thereby facilitating the replacement of each core filter plate. Description of the Drawings

[0026] Figure 1 is the front view of the present utility model;

[0027] Figure 2 is the top view of the filter support pipe of the present utility model;

[0028] Figure 3 is the structural schematic diagram of the backwashing control mechanism of the present utility model;

[0029] Figure 4 is Figure 3 the top view of

[0030] Figure 5 is the top view of the forward conduction control ring of the present utility model.

[0031] In the figure, 10 is the housing support mechanism, 101 is the filtration input chamber, 102 is the main filtration chamber, 1021 is the filtration interception chamber, 1022 is the filtration external discharge chamber, 103 is the filtration output chamber, 11 is the filter housing, 12 is the input end partition plate, 121 is the filtration input hole, 13 is the output end partition plate, 131 is the filtration external discharge hole, 14 is the total input pipe, 15 is the total output pipe, 16 is the backwash external discharge pipe, 161 is the backwash external discharge control valve, 20 is the filtration mechanism, 21 is the filtration support pipe, 210 is the sealing limit ring, 211 is the filter plate fixing window, 212 is the filter plate fixing mating groove, 22 is the core filter plate, 30 is the backwash control mechanism, 31 is the backwash flow-through housing, 32 is the forward conduction control ring, 321 is the forward conduction hole, 322 is the forward conduction groove, 33 is the backwash control ring, 331 is the forward conduction mating hole, 332 is the backwash through hole, 333 is the backwash mating through hole, 34 is the backwash drive receiving pipe, 341 is the drive control piston, 342 is the control ring drive pull rod, 343 is the control ring drive telescopic rod, 40 is the backwash stirring mechanism, 41 is the backwash stirring shaft, 411 is the backwash stirring blade, and 42 is the stirring drive impeller. Detailed implementation mode

[0032] The following combines Figures 1 - 5 to elaborate on the present utility model in detail. For the convenience of description, the orientations mentioned below are defined as follows: The up, down, left, right, front, and back directions mentioned below are consistent with the up, down, left, right, front, and back directions of the projection relationship of each main view or structural schematic diagram itself.

[0033] Embodiment 1:

[0034] An antibacterial self-cleaning backwash security filter, as Figure 1 shown, includes a housing support mechanism 10 and a filtration mechanism 20 disposed in the housing support mechanism 10;

[0035] The housing support mechanism 10 includes a filter housing 11, and an input end partition plate 12 and an output end partition plate 13 are fixed inside the filter housing 11;

[0036] As Figure 1 shown, the input end partition plate 12 and the output end partition plate 13 sequentially divide the interior of the filter housing 11 into a filtration input chamber 101, a main filtration chamber 102, and a filtration output chamber 103;

[0037] Between the input end partition plate 12 and the output end partition plate 13 is the main filtration chamber 102, on the other side of the input end partition plate 12 is the filtration input chamber 101, and on the other side of the output end partition plate 13 is the filtration output chamber 103;

[0038] The filtering mechanism 20 includes a filtering support pipe 21 fixed within the main filtering chamber 102, and a plurality of core filtering plates 22 are fixed on the side wall of the filtering support pipe 21;

[0039] The core filtering plate 22 is a filter plate applied to a security filter in the prior art;

[0040] A silver ion coating is sprayed on the inner side wall of the filter housing 11 and the side wall of the filtering support pipe 21;

[0041] On the side of the input end partition plate 12 and the output end partition plate 13 facing each other, coaxial sealing limit rings 210 are fixed, and both ends of the filtering support pipe 21 are respectively sealed and fixedly fitted in the two sealing limit rings 210;

[0042] As Figure 1 shown, the filtering support pipe 21 divides the main filtering chamber 102 into a filtering interception chamber 1021 and a filtering outer discharge chamber 1022;

[0043] The part between the outer side wall of the filtering support pipe 21 and the inner side wall of the filter housing 11 is the filtering interception chamber 1021, and the part inside the filtering support pipe 21 is the filtering outer discharge chamber 1022;

[0044] The input end partition plate 12 is provided with a plurality of filtering input holes 121 communicating the filtering input chamber 101 and the filtering interception chamber 1021, and the output end partition plate 13 is provided with a plurality of filtering outer discharge holes 131 communicating the filtering outer discharge chamber 1022 and the filtering output chamber 103;

[0045] A backwashing outer discharge pipe 16 communicating with the filtering interception chamber 1021 is fixed on the outside of the filter housing 11, and a backwashing outer discharge control valve 161 is provided on the backwashing outer discharge pipe 16.

[0046] As Figure 2 shown, the side wall of the filtering support pipe 21 is provided with a plurality of filter plate fixing windows 211 communicating inside and outside, and a filter plate fixing mating groove 212 is provided on the inner side surface of the filter plate fixing window 211, and the core filtering plate 22 is fixedly installed in the filter plate fixing mating groove 212.

[0047] As Figure 1 shown, a total input pipe 14 communicating with the filtering input chamber 101 is fixed on the outside of the filter housing 11, and a total output pipe 15 communicating with the filtering output chamber 103 is fixed on the outside of the filter housing 11.

[0048] As Figure 1 shown, a backwashing control mechanism 30 is provided in the filtering input chamber 101, as Figure 3As shown in the figure, the backwashing control mechanism 30 includes a backwashing flow-through housing 31 fixed on the input end partition 12 and on one side of the filtration input chamber 101. The lower end of the backwashing flow-through housing 31 is connected to the filtration outer discharge chamber 1022. A forward conduction control ring 32 is fixed on the outer side of the backwashing flow-through housing 31. The forward conduction control ring 32 has a plurality of forward conduction holes 321 penetrating along its axis in parallel. The plurality of forward conduction holes 321 are in one-to-one correspondence and connected to each filtration input hole 121, as Figure 5 shown. On the outer side of the forward conduction control ring 32, there are a plurality of forward conduction grooves 322. The plurality of forward conduction grooves 322 are in one-to-one correspondence and connected to each forward conduction hole 321;

[0049] A backwashing control ring 33 is rotatably connected to the outer side of the backwashing flow-through housing 31. The backwashing control ring 33 has a plurality of forward conduction mating holes 331 penetrating along its axis in parallel. On the inner side of the backwashing control ring 33, there are a plurality of backwashing through holes 332 extending along its radial direction. The plurality of backwashing through holes 332 are in one-to-one correspondence and connected to each forward conduction mating hole 331. On the side wall of the backwashing flow-through housing 31, there are a plurality of backwashing mating through holes 333 that communicate inside and outside;

[0050] As Figure 4 shown, a backwashing drive receiving tube 34 connected to the filtration input chamber 101 is fixed on the outer side of the filter housing 11. A drive control piston 341 is slidably connected in the backwashing drive receiving tube 34. A control ring drive pull rod 342 is connected between the drive control piston 341 and the backwashing control ring 33. Both ends of the control ring drive pull rod 342 are connected in a ball hinge manner. A control ring drive telescopic rod 343 for driving the drive control piston 341 to move is provided in the backwashing drive receiving tube 34;

[0051] The control ring drive telescopic rod 343 is an electric control telescopic rod. The outer rod end of the control ring drive telescopic rod 343 is fixedly connected to the backwashing drive receiving tube 34, and the inner rod end of the control ring drive telescopic rod 343 is fixedly connected to the drive control piston 341.

[0052] Embodiment 2:

[0053] On the basis of Embodiment 1, as Figure 3 shown, a backwashing stirring mechanism 40 is provided on the input end partition 12. The backwashing stirring mechanism 40 includes a backwashing stirring shaft 41 rotatably connected inside the backwashing flow-through housing 31. The lower end of the backwashing stirring shaft 41 extends into the filtration support tube 21. A plurality of backwashing stirring blades 411 are fixed on the part of the backwashing stirring shaft 41 extending into the filtration support tube 21;

[0054] One end of the backwashing stirring shaft 41 inside the backwashing flow-through housing 31 is fixed with a stirring drive impeller 42.

[0055] It should be noted that the core filter plate 22, the stirring drive impeller 42, the control ring drive telescopic rod 343, and the backwash outer drain control valve 161 all adopt existing technologies and are not specially defined here;

[0056] In the actual application process of the present utility model, when the normal filtration work is carried out, each backwash through hole 332 and the backwash cooperation through hole 333 are misaligned and isolated, and each forward conduction cooperation hole 331 and the forward conduction groove 322 are in a connected state;

[0057] The raw water input from the total input pipe 14 first enters the inside of the filtration input chamber 101. Then the raw water sequentially passes through the forward conduction cooperation hole 331, the forward conduction groove 322, the forward conduction through hole 321, and the filtration input hole 121 and enters the filtration interception chamber 1021. The raw water passes through the multiple core filter plates 22 and enters the filtration outer drain chamber 1022. The filtered water then passes through the filtration outer drain hole 131 and enters the filtration output chamber 103, and finally the filtered water is discharged from the total output pipe 15;

[0058] The impurities in the raw water will be intercepted in the filtration interception chamber 1021. When the impurities accumulate to a certain extent, the filtration performance of the core filter plate 22 will be affected, and it is necessary to perform backwashing on the core filter plate 22 to restore the filtration performance of the core filter plate 22;

[0059] Close the valve at the end of the total output pipe 15. Use the inner rod of the control ring drive telescopic rod 343 to extend and drive the drive control piston 341 to move. The drive control piston 341 drives the backwash control ring 33 to rotate through the control ring drive pull rod 342. The backwash control ring 33 rotates around the axis of the backwash flow shell 31, so that each backwash through hole 332 and the backwash cooperation through hole 333 are in a connected state, and at the same time each forward conduction cooperation hole 331 and the forward conduction groove 322 are in a misaligned and isolated state. At this time, the raw water inside the filtration input chamber 101 sequentially passes through the forward conduction cooperation hole 331, the backwash through hole 332, and the backwash cooperation through hole 333 and enters the inside of the backwash flow shell 31. Then the raw water enters the inside of the filtration outer drain chamber 1022. The raw water inside the filtration outer drain chamber 1022 reversely passes through each core filter plate 22 and enters the filtration interception chamber 1021 to wash each core filter plate 22. Open the backwash outer drain control valve 161, and the impurities intercepted in the filtration interception chamber 1021 and the impurities generated by washing each core filter plate 22 will be discharged through the backwash outer drain pipe 16;

[0060] During the backwashing process, the raw water entering the interior of the backwashing flow-through housing 31 drives the stirring drive impeller 42 to rotate. The stirring drive impeller 42 then drives the backwashing stirring shaft 41 together with the backwashing stirring blades 411 to rotate. By utilizing the stirring action of the multiple backwashing stirring blades 411, each core filter plate 22 can be cleaned more thoroughly.

[0061] One end of the total output pipe 15 is fixedly connected to the filter housing 11 by means of threads, facilitating the removal of the end where the total output pipe 15 is fixed. The output end partition 13 is also fixedly connected to the inner side wall of the filter housing 11 by means of threads. After removing the output end partition 13, the filter support pipe 21 can be taken out from the filter housing 11, thereby facilitating the replacement of each core filter plate 22.

Claims

1. An antibacterial self-cleaning backwashing safety filter, characterized in that: It comprises a shell supporting mechanism (10), and a filtering mechanism (20) arranged in the shell supporting mechanism (10); The housing support mechanism (10) comprises a filter housing (11), and an input end partition plate (12) and an output end partition plate (13) are fixed inside the filter housing (11); The input end partition (12) and the output end partition (13) divide the interior of the filter housing (11) into a filter input chamber (101), a filter main chamber (102) and a filter output chamber (103) in sequence; The filtering mechanism (20) comprises a filtering support tube (21) fixed in the main filtering chamber (102), and a plurality of core filtering plates (22) are fixed on the side wall of the filtering support tube (21); The filter support tube (21) divides the main filter chamber (102) into a filter interception chamber (1021) and a filter discharge chamber (1022); The input end partition plate (12) has a plurality of filter input holes (121) communicating with the filter input chamber (101) and the filter interception chamber (1021), and the output end partition plate (13) has a plurality of filter discharge holes (131) communicating with the filter discharge chamber (1022) and the filter output chamber (103); A backwashing external discharge pipe (16) connected to the filter interception chamber (1021) is fixed on the outside of the filter housing (11), and a backwashing external discharge pipe (16) is provided with a backwashing external discharge control valve (161).

2. The antibacterial self-cleaning backwashing safety filter according to claim 1 is characterized in that: A main input pipe (14) connected to the filter input chamber (101) is fixed on the outside of the filter housing (11), and a main output pipe (15) connected to the filter output chamber (103) is fixed on the outside of the filter housing (11).

3. The antibacterial self-cleaning backwashing safety filter according to claim 1 is characterized in that: A backwash control mechanism (30) is provided in the filter input chamber (101), the backwash control mechanism (30) comprising a backwash circulation shell (31) fixed on the input end partition plate (12) and located on one side of the filter input chamber (101), the lower end of the backwash circulation shell (31) being connected to the filter external discharge chamber (1022), a forward conduction control ring (32) being fixed on the outer side of the backwash circulation shell (31), the forward conduction control ring (32) having a plurality of forward conduction holes (321) extending through the forward conduction control ring (32) parallel to its axis, the plurality of forward conduction holes (321) being connected one-to-one with the respective filter input holes (121), the outer side of the forward conduction control ring (32) having a plurality of forward conduction grooves (322), the plurality of forward conduction grooves (322) being connected one-to-one with the respective forward conduction holes (321); The backwash circulation shell (31) is rotatably connected to a backwash control ring (33) on the outside, the backwash control ring (33) has a plurality of forward conducting matching holes (331) extending parallel to its axis, the backwash control ring (33) has a plurality of backwash through holes (332) extending radially therefrom on the inside, the plurality of backwash through holes (332) are connected to the respective forward conducting matching holes (331) in a one-to-one correspondence, and the side wall of the backwash circulation shell (31) has a plurality of backwash matching through holes (333) communicating with each other inside and outside; A backwash drive receiving tube (34) connected to the filter input chamber (101) is fixed on the outside of the filter housing (11); a drive control piston (341) is slidably connected inside the backwash drive receiving tube (34); a control ring drive pull rod (342) is connected between the drive control piston (341) and the backwash control ring (33); a control ring drive telescopic rod (343) for driving the drive control piston (341) to move is provided inside the backwash drive receiving tube (34).

4. The antibacterial self-cleaning backwashing safety filter according to claim 3 is characterized in that: A backwash stirring mechanism (40) is provided on the input end partition (12), the backwash stirring mechanism (40) comprising a backwash stirring shaft (41) rotatably connected to the backwash circulation shell (31), the lower end of the backwash stirring shaft (41) extending into the interior of the filter support tube (21), and a plurality of backwash stirring blades (411) are fixed to the portion of the backwash stirring shaft (41) extending into the interior of the filter support tube (21); A stirring driving impeller (42) is fixed to one end of the backwash stirring shaft (41) located inside the backwash circulation shell (31).

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