CN105344149A - Intelligent back washing water filtration device and operating principle thereof - Google Patents
Intelligent back washing water filtration device and operating principle thereof Download PDFInfo
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- CN105344149A CN105344149A CN201510884666.2A CN201510884666A CN105344149A CN 105344149 A CN105344149 A CN 105344149A CN 201510884666 A CN201510884666 A CN 201510884666A CN 105344149 A CN105344149 A CN 105344149A
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Abstract
The invention relates to an intelligent back washing water filtration device and an operating principle thereof. The intelligent back washing water filtration device comprises an upper casing, a lower casing, a water inlet switch valve, a water outlet valve and a water discharge valve, wherein the upper casing and the lower casing are in screw locking, at least two layers of filter screens are arranged between the upper casing and the lower casing in a clamping manner, the filter screens are used for separating an upper water cavity in the upper casing from a lower water cavity in the lower casing, the layers of filter screens are designed into bowl-shaped screen surfaces adopting the concave-convex shape, two layers of filter screens are formed into one group, the concave-convex direction of the bowl-shaped screen surface of the lower layer filter screen in each group is changed along with the change of the water through direction of the filter screen, and in filtration, the lower layer filter screen and the upper layer filter screen in each group are overlaid in a staggered manner, so as to achieve higher filtration precision. The operating principle is that in filtration, the layers of filter screens conduct filtration in an upper-convex lower-concave manner, and in back washing, the lower layer filter screen is changed to be lower-convex upper-concave along with the change of the water flow direction, the filtration precision is reduced, and the back washing is realized. The intelligent back washing water filtration device is relatively small in overall size and better in filtration and back washing effect, and is used for being used as the water quality treating device of various types of domestic or industrial water.
Description
Technical field
The present invention relates to water filter, is a kind of intelligent backwashing water filter and operation principle thereof of being connected to domestic water or water for industrial use pipeline.
Background technology
Using in water, be generally divided into domestic water and water for industrial use.Wherein, living water is mostly supplied water by waterworks, through conveyance conduit, can carry out suitable filtration and purification, but the filtration that can reach or clean-up effect is extremely limited.Especially after entering every family, because water quality precipitated reason of waiting so long in water pipe, often there will be the problems such as muddy with the first section time of water, after needing to carry out certain discharge, comparatively clean water quality can reached.For this reason, a lot of domestic consumer selects to install household filter, but existing household filter, because itself does not have self-cleaning function, long-time use after-purification deleterious, need periodic replacement, not only cost is high, and repeatedly changes comparatively loaded down with trivial details.As Chinese patent literature publishes Authorization Notice No. CN201182937Y, authorized announcement date on January 21st, 2009, utility model name is called " horizontal waterpower backwash self-cleaning filter ", it comprises filter housings, cylindrical net formula filtration core, outlet pipe, blow-off pipe, major design is to be provided with water inlet pipe in the outer water inlet pipe of net and net, nets water inlet pipe, outlet pipe, blow-off pipe in outer water inlet pipe, net and is provided with valve.Although this filter overall structure is comparatively simple, but owing to adopting cylindrical net formula filtration core, filter volume is relatively large, and the filtering surface of filtration core affects larger by water inlet, the direction of draining and impulse force, cause filtration core when filtration or backwash, only local filtration or backwash effect are obviously, and other position is then failed effectively to filter to utilize or recoil and cleaned.For this reason, need to be improved existing back-flushing filtering device.
Summary of the invention
For overcoming above-mentioned deficiency, the object of the invention is to provide a kind of intelligent backwashing water filter and operation principle thereof to this area, existing same device filters, backwash effect is not good enough, the technical problem that overall volume is larger to make it solve.Its objective is and to be achieved through the following technical solutions.
This intelligent backwashing water filter comprises upper casing, lower casing, water inlet switch valve, outlet valve, draining valve, screw-threaded coupling between upper casing and lower casing, upper casing is provided with water inlet, delivery port, lower casing is provided with lower water inlet, discharge outlet, water inlet switch valve is provided with an import, two outlets, and two outlets connect upper water inlet, lower water inlet respectively, is switched intake by the upper water inlet of water inlet switch valve control and lower water inlet, delivery port connects outlet valve, and discharge outlet connects draining valve.Its structural feature is that described upper casing and lower casing clamp at least two-layer screen pack while screw-threaded coupling between the two, is separated by the lower water cavity in the upper water cavity in upper casing and lower casing by screen pack.By being arranged between upper casing and lower casing by screen pack, and be fixedly clamped with upper casing, lower casing threaded engagement, not only screen pack dismounting more for convenience, and can arrange multiple filtration net as required, realizes multiple filtration, improves filter effect.
Further, gap is formed by arranging packing ring between adjacent in described screen pack upper level filter net and lower floor's screen pack.By arranging gap, be beneficial to filter operation.
Further, described screen pack is by bottom screen pack to the superiors' screen pack, and filtering accuracy successively increases.By successively filtering reinforcement, to realize progressive filtration, be conducive to improving filter effect.
Further, described water inlet switch valve, outlet valve, blowoff valve are magnetic valve.By this structure, realize filtering and backwash intellectualized operation.
Further, the upper water inlet of described upper casing is positioned at the top of upper casing.By this structure, the water inlet of upper casing is effectively impacted screen pack, improve backwash effect.
As the improvement of such scheme, the alms bowl shape wire side of the equal concave-convex surface of the described screen pack of each layer, and the alms bowl shape wire side concave and convex direction of screen pack changes with screen pack water flowing direction and changes.By this structure, make screen pack when backwash, the alms bowl shape wire side concave and convex direction of screen pack can do linear transformation, is equivalent to carry out a dither operation to the impurity being adsorbed in screen pack, impurity on screen pack is easily rinsed drop, improves backwash cleaning performance.
As the replacement of such scheme, described screen pack with two-layer be one group, the two-layer filter screen filtration precision often in group is identical, forms gap between each group screen pack by arranging packing ring; The alms bowl shape wire side of the equal concave-convex surface of upper and lower two-layer screen pack often in group, wherein the alms bowl shape wire side concave and convex direction of lower floor's screen pack changes with screen pack water flowing direction and changes, and when the alms bowl shape wire side concave and convex direction of lower floor's screen pack and the alms bowl shape wire side concave and convex direction of upper level filter net consistent time, lower floor's screen pack and upper level filter net intersecting, the filtering accuracy formed after intersecting is greater than the filtering accuracy of upper level filter net or lower floor's screen pack; When the alms bowl shape wire side concave and convex direction of described lower floor screen pack is contrary with the alms bowl shape wire side concave and convex direction of upper level filter net, between lower floor's screen pack and upper level filter net, form intermediate cavity.By arranging above-mentioned filter screen structure, when making to filter, often organizing two-layer screen pack intersecting, improving filtering accuracy, thus improving filter effect.When carrying out backwash, removing screen pack intersecting, reducing filtering accuracy, thus being beneficial to backwash cleaning operation.
This intelligent backwashing water filter also comprises trembles net arrangement, described screen pack is flexible filter net, tremble motor, crank, axostylus axostyle, locking member that net arrangement comprises band rotating shaft, motor is fixed on the outside of described lower casing, the rotating shaft of motor is stretched in described lower water cavity, and connect described axostylus axostyle one end by crank gearing, and crank links, described axostylus axostyle goes to upper and lower motion relative to the center line of upper casing, lower casing, and the axostylus axostyle other end is fixedly connected with the middle part of each layer screen pack by locking member.Tremble net arrangement by setting up, thus when opening backwash, opening simultaneously and trembling net arrangement, utilizing motor-driven rotatable shaft, rotating shaft driving crank, crank handle turns axostylus axostyle interlock screen pack is shaken up and down, improves backwash cleaning performance.
Described net arrangement of trembling also comprises shaft seat for locating described rotating shaft, shaft seat mates with shape of cross section in the lower water cavity in described lower casing, and shaft seat both sides are provided with recess, the limit rib with mating recesses is provided with in described lower casing, described shaft seat is coordinated with described limit rib by described recess, is positioned in the lower water cavity of lower casing; Described shaft seat is provided with the axle positioning seat coordinated with described rotating shaft, and the interstitial hole passed through for the activity of described axostylus axostyle and the limbers for water flowing.By setting up shaft seat, improve the stability of trembling net arrangement work.
The operation principle of the described intelligent backwashing water filter of above-mentioned alternative is: when carrying out water filtration, open the lower water inlet of described water inlet switch valve conducting to described lower casing, open described outlet valve simultaneously, current enter in lower casing through the lower water inlet of lower casing, and rise through each layer screen pack, now, the alms bowl shape wire side concave and convex direction often organizing the lower floor's screen pack in screen pack is consistent with the alms bowl shape wire side concave and convex direction of upper level filter net, be epirelief recessed, and lower floor's screen pack and upper level filter net intersecting, filtering accuracy increases, and realizes water filtration operation.When carrying out backwash, switch the upper water inlet of described water inlet switch valve conducting to described upper casing, close outlet valve simultaneously, open described draining valve, current enter in upper casing through the upper water inlet of upper casing, and rinse each layer screen pack downwards, now, the alms bowl shape wire side concave and convex direction of the lower floor's screen pack often organized in screen pack becomes lower convex fovea superior with water impact, and upper level filter net alms bowl shape wire side concave and convex direction is constant, therefore remove the state of upper level filter net and lower floor's screen pack intersecting, filtering accuracy is step-down comparatively before, realizes backwash operation.
Structure of the present invention is comparatively reasonable, and operation principle is feasible, and screen pack is installed and used more for convenience, and overall volume is less, better, the treatment device for water being suitable as all kinds of domestic water or water for industrial use uses, or the structure of same device is improved for filtration and backwash effect.
Accompanying drawing explanation
Fig. 1 is base case structural representation of the present invention, and in figure, arrow represents water (flow) direction.
Fig. 2 is the present invention program one filtration condition structural representation, and in figure, arrow represents water (flow) direction.
Fig. 3 is the present invention program one backwash status architecture schematic diagram, and in figure, arrow represents water (flow) direction.
Fig. 4 is the present invention program two backwash status architecture schematic diagram, and in figure, unidirectional arrow represents water (flow) direction, and dotted line represents the movement position of lower floor's screen pack, and four-headed arrow represents the direction of motion of lower floor's screen pack.
Fig. 5 is that the present invention sets up the structural representation trembling net arrangement.
Fig. 6 is the structural representation that the present invention trembles net arrangement.
Fig. 7 is the shaft seat structural representation that the present invention trembles net arrangement.
Fig. 8 is the structural representation that the present invention changes water inlet position on upper casing.
In figure, the name of sequence number is called: 1, water inlet switch valve, 2, upper casing, 201, upper water inlet, 202, upper water cavity, 203, delivery port, 3, lower casing, 301, lower water cavity, 302, lower water inlet, 303, discharge outlet, 304, limit rib, 4, outlet valve, 5, draining valve, 6 lower floor's screen packs, 7, upper level filter net, 8, packing ring, 9, motor, 901, rotating shaft, 10, crank, 11, shaft seat, 1101, axle positioning seat, 1102, recess, 1103, interstitial hole, 1104, limbers, 12, axostylus axostyle.
Detailed description of the invention
Now 1-8 by reference to the accompanying drawings, the invention will be further described.
As shown in Figure 1, this intelligent backwashing water filter comprises upper casing 2, lower casing 3, water inlet switch valve 1, outlet valve 4, draining valve 5, coordinated by screw-threaded coupling between upper casing with lower casing, upper casing side is provided with water inlet 201, opposite side is provided with delivery port 203, lower casing side is provided with lower water inlet 302, bottom is provided with discharge outlet 303, water inlet switch valve is provided with an import, two outlets, two outlets connect upper water inlet respectively by flexible pipe, lower water inlet, and two outlets are equipped with threshold switch, by operating two threshold switch, in control, water inlet and lower water inlet switch and intake.Above-mentioned delivery port connects outlet valve, and discharge outlet connects draining valve.Base case of the present invention design is that upper casing and lower casing clamp while screw-threaded coupling between the two and is provided with two-layer screen pack, namely formed after coordinating between upper casing bottom with lower casing top and clamp spacing space for screen pack, before coordinating with lower casing at upper casing, two-layer screen pack is put in space, and form gap by arranging packing ring 8 between two-layer screen pack, again by upper casing and lower casing screw-threaded coupling, namely complete the installation of screen pack.By two-layer screen pack, the lower water cavity in the upper water cavity in upper casing and lower casing is separated, to realize filtering and backwash operation.
In order to improve the filter effect of this intelligent backwashing water filter, also the filtering accuracy of screen pack screen pack 7 at the middle and upper levels can be designed to the filtering accuracy being greater than lower floor's screen pack 6.
In order to improve the effect of screen pack backwash, the solution of the present invention one structure as shown in Figure 2 and Figure 3, each layer screen pack is all designed to concavo-convex alms bowl shape wire side, and the alms bowl shape wire side concave and convex direction of screen pack changes with screen pack water flowing direction and changes, namely alms bowl shape wire side has the ability of dough deformation.Thus when screen pack backwash, the alms bowl shape wire side concave and convex direction of screen pack can change and flexible variety with water (flow) direction, be equivalent to carry out a dither operation to the impurity being adsorbed in screen pack, the impurity on screen pack be easily rinsed and drop, improve backwash cleaning performance.
The solution of the present invention two structure as shown in Figure 4, the screen pack of this intelligent backwashing water filter with two-layer be one group, the two-layer filter screen filtration precision often in group is identical, forms gap between each group screen pack by arranging packing ring 8.The alms bowl shape wire side of the equal concave-convex surface of upper and lower two-layer screen pack often in group, wherein the alms bowl shape wire side concave and convex direction of lower floor's screen pack 6 changes with screen pack water flowing direction and changes, and when the alms bowl shape wire side concave and convex direction of lower floor's screen pack and the alms bowl shape wire side concave and convex direction of upper level filter net 7 consistent time, lower floor's screen pack and upper level filter net intersecting, the filtering accuracy formed after intersecting is greater than the filtering accuracy of upper level filter net or lower floor's screen pack; When the alms bowl shape wire side concave and convex direction of lower floor's screen pack is contrary with the alms bowl shape wire side concave and convex direction of upper level filter net, between lower floor's screen pack and upper level filter net, form intermediate cavity.
The operation principle of scheme two is: when carrying out water filtration, open the lower water inlet 302 of water inlet switch valve 1 conducting to lower casing 3, open outlet valve 4 simultaneously, current enter in lower casing through the lower water inlet of lower casing, and rise through each layer screen pack, now, the alms bowl shape wire side concave and convex direction often organizing the lower floor's screen pack 6 in screen pack is consistent with the alms bowl shape wire side concave and convex direction of upper level filter net 7, be epirelief recessed, and lower floor's screen pack and upper level filter net intersecting, filtering accuracy increases, and realizes water filtration operation.When carrying out backwash, switch the upper water inlet 201 of water inlet switch valve conducting to upper casing 2, close outlet valve 4 simultaneously, open draining valve 5, current enter in upper casing through the upper water inlet of upper casing, and rinse each layer screen pack downwards, now, the alms bowl shape wire side concave and convex direction of the lower floor's screen pack often organized in screen pack becomes lower convex fovea superior with water impact, and upper level filter net alms bowl shape wire side concave and convex direction is constant, therefore remove the state of upper level filter net and lower floor's screen pack intersecting, filtering accuracy is step-down comparatively before, to realize backwash operation.
Except such scheme one, scheme two, the present invention also discloses one and trembles net arrangement.As illustrated in figs. 5-7, tremble motor 9, crank 10, shaft seat 11, axostylus axostyle 12, locking member that net arrangement comprises band rotating shaft 901, motor is fixed on the outside of lower casing, and the rotating shaft of motor is stretched in lower casing 3, and carries out sealing between rotating shaft and lower casing.Shaft seat mates with shape of cross section in lower casing, and shaft seat both sides are provided with recess 1102, is provided with the limit rib 304 with mating recesses in lower casing, and shaft seat to be coordinated with limit rib by recess and is positioned in lower casing.Shaft seat is provided with the axle positioning seat 1101 rotating location for rotating shaft, and for the axostylus axostyle interstitial hole 1103 that passes through of activity and the limbers 1104 for water flowing.Above-mentioned rotating shaft connects axostylus axostyle one end by crank gearing, and goes to upper and lower motion by crank interlock axostylus axostyle relative to the center line of upper casing, lower casing, and the axostylus axostyle other end is fixedly connected with the middle part of each layer screen pack by locking member.Tremble net arrangement by setting up, thus while opening backwash, open the motor trembling net arrangement, utilize motor-driven rotatable shaft, rotating shaft driving crank, crank handle turns axostylus axostyle, thus interlock screen pack is shaken up and down, coordinate current to screen pack backwash, improve backwash cleaning performance.
Above content is intended to technological means of the present invention is described, and unrestricted technical scope of the present invention.Those skilled in the art do apparent improvement in conjunction with existing common practise to the present invention, such as: as shown in Figure 8, change the upper water inlet position of upper casing, are located at the top of upper casing, thus are conducive to screen pack backwash operation; And water inlet switch valve, outlet valve, draining valve are all replaced with magnetic valve, to realize Based Intelligent Control.These technology, all belong to common technology for those skilled in the art, within the protection domain also falling into the claims in the present invention.
Claims (10)
1. an intelligent backwashing water filter, this device comprises upper casing (2), lower casing (3), water inlet switch valve (1), outlet valve (4), draining valve (5), screw-threaded coupling between upper casing and lower casing, upper casing is provided with water inlet (201), delivery port (203), lower casing is provided with lower water inlet (302), discharge outlet (303), water inlet switch valve is provided with an import, two outlets, two outlets connect upper water inlet respectively, lower water inlet, switched by the upper water inlet of water inlet switch valve control and lower water inlet and intake, delivery port connects outlet valve, discharge outlet connects draining valve, it is characterized in that described upper casing (2) and lower casing (3) clamps at least two-layer screen pack while screw-threaded coupling between the two, by screen pack, the lower water cavity (301) in the upper water cavity (202) in upper casing and lower casing is separated.
2. intelligent backwashing water filter according to claim 1, is characterized in that forming gap by arranging packing ring (8) between upper level filter net (7) adjacent in described screen pack and lower floor's screen pack (6).
3. intelligent backwashing water filter according to claim 2, it is characterized in that described screen pack by bottom screen pack to the superiors' screen pack, filtering accuracy successively increases.
4. intelligent backwashing water filter according to claim 1, is characterized in that described water inlet switch valve (1), outlet valve (4), blowoff valve (5) are magnetic valve.
5. intelligent backwashing water filter according to claim 1, is characterized in that the upper water inlet (201) of described upper casing (2) is positioned at the top of upper casing.
6. the intelligent backwashing water filter according to claim 1-5 any one, is characterized in that the alms bowl shape wire side of the equal concave-convex surface of the described screen pack of each layer, and the alms bowl shape wire side concave and convex direction of screen pack changes with screen pack water flowing direction and changes.
7. intelligent backwashing water filter according to claim 1, it is characterized in that described screen pack with two-layer be one group, the two-layer filter screen filtration precision often in group is identical, forms gap between each group screen pack by arranging packing ring (8); The alms bowl shape wire side of the equal concave-convex surface of upper and lower two-layer screen pack often in group, wherein the alms bowl shape wire side concave and convex direction of lower floor's screen pack (6) changes with screen pack water flowing direction and changes, and when the alms bowl shape wire side concave and convex direction of lower floor's screen pack and the alms bowl shape wire side concave and convex direction of upper level filter net (7) consistent time, lower floor's screen pack and upper level filter net intersecting, the filtering accuracy formed after intersecting is greater than the filtering accuracy of upper level filter net or lower floor's screen pack; When the alms bowl shape wire side concave and convex direction of described lower floor screen pack is contrary with the alms bowl shape wire side concave and convex direction of upper level filter net, between lower floor's screen pack and upper level filter net, form intermediate cavity.
8. intelligent backwashing water filter according to claim 1, it is characterized in that this device also comprises and tremble net arrangement, described screen pack is flexible filter net, tremble the motor (9) that net arrangement comprises band rotating shaft (901), crank (10), axostylus axostyle (12), locking member, motor is fixed on the outside of described lower casing (3), the rotating shaft of motor is stretched in described lower water cavity (301), and connect described axostylus axostyle one end by crank gearing, and crank links, described axostylus axostyle is relative to upper casing, the center line of lower casing is presented, lower motion, the axostylus axostyle other end is fixedly connected with the middle part of each layer screen pack by locking member.
9. intelligent backwashing water filter according to claim 8, tremble net arrangement described in it is characterized in that and also comprise shaft seat (11) for locating described rotating shaft (901), shaft seat mates with lower water cavity (301) the interior shape of cross section in described lower casing (3), and shaft seat both sides are provided with recess (1102), be provided with in described lower casing and the limit rib of mating recesses (304), described shaft seat is coordinated with described limit rib by described recess, is positioned in the lower water cavity of lower casing; Described shaft seat is provided with the axle positioning seat (1101) coordinated with described rotating shaft, and the interstitial hole (1103) passed through for the activity of described axostylus axostyle and the limbers (1104) for water flowing.
10. the operation principle of an intelligent backwashing water filter as claimed in claim 7, it is characterized in that when carrying out water filtration, open the lower water inlet (302) of described water inlet switch valve (1) conducting to described lower casing (3), open described outlet valve (4) simultaneously, current enter in lower casing through the lower water inlet of lower casing, and rise through each layer screen pack, now, the alms bowl shape wire side concave and convex direction often organizing the lower floor's screen pack (6) in screen pack is consistent with the alms bowl shape wire side concave and convex direction of upper level filter net (7), be epirelief recessed, and lower floor's screen pack and upper level filter net intersecting, filtering accuracy increases, realize water filtration operation, when carrying out backwash, switch the upper water inlet (201) of described water inlet switch valve conducting to described upper casing (2), close outlet valve simultaneously, open described draining valve (5), current enter in upper casing through the upper water inlet of upper casing, and rinse each layer screen pack downwards, now, the alms bowl shape wire side concave and convex direction of the lower floor's screen pack often organized in screen pack becomes lower convex fovea superior with water impact, and upper level filter net alms bowl shape wire side concave and convex direction is constant, therefore remove the state of upper level filter net and lower floor's screen pack intersecting, filtering accuracy is step-down comparatively before, realizes backwash operation.
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| CN201510884666.2A CN105344149B (en) | 2015-12-04 | 2015-12-04 | Intelligent backwashing water filter and its method of work |
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| CN201510884666.2A CN105344149B (en) | 2015-12-04 | 2015-12-04 | Intelligent backwashing water filter and its method of work |
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| CN105344149B CN105344149B (en) | 2017-07-21 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108479157A (en) * | 2018-04-24 | 2018-09-04 | 广州市赛昊环保设备有限公司 | A kind of coordinated type multi-stage sewage purifier |
| CN110975379A (en) * | 2019-12-10 | 2020-04-10 | 王灿 | Full-automatic back-washing precision filter |
| CN113476928A (en) * | 2021-05-25 | 2021-10-08 | 张齐鲁 | Stainless steel tubular multilayer sintering filter screen precise filtering device capable of backwashing |
| CN115536137A (en) * | 2022-08-17 | 2022-12-30 | 深圳市万木水务有限公司 | Anti-clogging water quality purification device and method thereof |
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| CN202638083U (en) * | 2012-04-19 | 2013-01-02 | 成都智利达科技有限公司 | Novel filtering tank |
| CN202933541U (en) * | 2012-12-12 | 2013-05-15 | 北京普世圣华科技有限公司 | Elastic filter device |
| CN204739315U (en) * | 2015-05-20 | 2015-11-04 | 天津斯维克阀业有限公司 | Filtration valve device |
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| CN201182937Y (en) * | 2008-04-29 | 2009-01-21 | 石河子大学 | Horizontal type waterpower back flushing self-cleaning filter |
| CN202638083U (en) * | 2012-04-19 | 2013-01-02 | 成都智利达科技有限公司 | Novel filtering tank |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108479157A (en) * | 2018-04-24 | 2018-09-04 | 广州市赛昊环保设备有限公司 | A kind of coordinated type multi-stage sewage purifier |
| CN110975379A (en) * | 2019-12-10 | 2020-04-10 | 王灿 | Full-automatic back-washing precision filter |
| CN113476928A (en) * | 2021-05-25 | 2021-10-08 | 张齐鲁 | Stainless steel tubular multilayer sintering filter screen precise filtering device capable of backwashing |
| CN113476928B (en) * | 2021-05-25 | 2022-08-16 | 唐山奥名机械设备制造有限公司 | Stainless steel tubular multilayer sintering filter screen precise filtering device capable of backwashing |
| CN115536137A (en) * | 2022-08-17 | 2022-12-30 | 深圳市万木水务有限公司 | Anti-clogging water quality purification device and method thereof |
| CN115536137B (en) * | 2022-08-17 | 2024-05-24 | 深圳市万木水务有限公司 | Anti-blocking water quality purifying device and method thereof |
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