CN115487569A - Water quality filtering method and filter - Google Patents
Water quality filtering method and filter Download PDFInfo
- Publication number
- CN115487569A CN115487569A CN202211225069.5A CN202211225069A CN115487569A CN 115487569 A CN115487569 A CN 115487569A CN 202211225069 A CN202211225069 A CN 202211225069A CN 115487569 A CN115487569 A CN 115487569A
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- Prior art keywords
- water
- filter element
- filter
- flow guide
- water inlet
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 160
- 238000001914 filtration Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000004140 cleaning Methods 0.000 claims abstract description 23
- 239000002245 particle Substances 0.000 claims abstract description 13
- 239000004576 sand Substances 0.000 claims description 54
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 239000008213 purified water Substances 0.000 description 7
- 239000010865 sewage Substances 0.000 description 4
- 239000013618 particulate matter Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 238000009991 scouring Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/31—Self-supporting filtering elements
- B01D29/35—Self-supporting filtering elements arranged for outward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/005—Mobile installations, particularly for upkeeping in situ road or railway furniture, for instance road barricades, traffic signs; Mobile installations particularly for upkeeping tunnel walls
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/10—Hydraulically loosening or dislodging undesirable matter; Raking or scraping apparatus ; Removing liquids or semi-liquids e.g., absorbing water, sliding-off mud
- E01H1/101—Hydraulic loosening or dislodging, combined or not with mechanical loosening or dislodging, e.g. road washing machines with brushes or wipers
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a water quality filtering method and a filter, wherein the filtering method comprises the steps of adopting a tubular filter element internally provided with a flow guide part, enabling inlet water to enter from the filter element and penetrate through the wall of the filter element and then flow out for filtering, and simultaneously enabling the inlet water to form radial water flow under the flow guide of the flow guide part to wash particles attached to the inner wall of the filter element so as to realize the self-cleaning function of the inner wall of the filter element. The invention uses the characteristic that water flow washes silt instantly without increasing external force, and guides and accelerates water flow to form impact and counter-impact force on the filter element by installing the flow guide part in the water filter, thereby preventing silt from attaching to the surface of the filter element and realizing the effect of automatically cleaning the filter element in the working process of the filter.
Description
Technical Field
The invention belongs to a water purifying device, and particularly relates to a water quality filtering method and a filter.
Background
The water of the existing sanitation vehicles such as watering lorries, road cleaning vehicles, spraying vehicles and the like often uses rainwater, pond water and the like collected in cities, and the sanitation vehicles need to filter the water through a vehicle-mounted sewage filtering system during working. The structure of the water filter in the sewage filtering system is shown in figure 9, which comprises a body consisting of a base 1 and a cover body 8 and a cylindrical filter element 5 arranged in the body and with a closed bottom, wherein the body is provided with a water inlet 101, a water outlet 103 and a filtering chamber 12 communicated with the water inlet 101, the bottom of the body is provided with a sand collecting tank 801 and a sand discharge port 11 communicated with the sand collecting tank 801 and provided with a valve, the filter element 5 is arranged in the filtering chamber 12 and fixed on the base 1 through a screw 13, the upper end of the filter element 5 is communicated with the water outlet 103 in a watertight manner, and the base 1 is connected with the cover body 8 through a fastening ring 4. When the water filter works, sewage (inlet water) enters the filter chamber 12 from the water inlet 101 according to a solid arrow, is filtered by the filter element 5 to become clean water and is discharged from the water outlet 103, a part of smaller particles such as silt and the like are attached to the outer wall of the filter element after being blocked by the filter element, and the other part of thicker particles a fall into the sand collection tank 801 according to a dotted arrow and are periodically discharged through the sand discharge port 11. Different from a household water filter, the existing water filter has large volume and large flow, so that the filtering area of a filter element is much larger, and the filter element basically adopts a folding structure. During filtering, particles such as silt in the sewage are particularly easy to attach to the gap and the outer wall of the filter element. At present, the water quality filter on the sanitation truck in China has a simple structure and no self-cleaning function, a driver needs to spend a large amount of time and energy to remove and clean the filter element, otherwise the filter element is easily blocked and even deformed and damaged under the action of water pressure, and the normal work of the truck is influenced. Because the water quality filter is generally installed at the bottom of the vehicle, the work of dismantling and cleaning the filter element is very inconvenient, the consumed time is long, the working efficiency of a driver is greatly reduced, and the running cost of the vehicle can be greatly improved by frequently replacing the filter element. Therefore, sanitation vehicle manufacturers and drivers urgently need self-cleaning water quality filters.
Disclosure of Invention
The invention aims to provide a self-cleaning water quality filtering method and a self-cleaning water quality filtering device.
The technical scheme adopted for realizing the purpose of the invention is as follows:
the water filtering method includes adopting tubular filter element with flow guiding part inside to make the inlet water flow out for filtering and form radial water flow to flush the grains attached to the inner wall of the filter element for self-cleaning.
The invention provides a water filter, which comprises a body and a tubular filter element arranged in the body, wherein the body is provided with a water inlet, a water outlet, a filter chamber communicated with the water outlet, a sand collecting tank and a sand discharge port communicated with the sand collecting tank, the filter element is arranged in the filter chamber, the upper end and the lower end of the filter element are respectively communicated with the water inlet and the sand collecting tank, a flow guide part for guiding inflow water from the water inlet to form radial water flow flowing to the inner wall of the filter element is arranged in the filter element, and the inner diameter of the filter element is 1 cm-50 cm.
The water conservancy diversion part is fixed to be established this internally, the water conservancy diversion part includes the body of rod, establishes at the upper and lower interface at body of rod upper and lower both ends and establishes lie in on the body of rod spiral water conservancy diversion piece between the upper and lower interface, the water conservancy diversion part passes through the upper and lower interface is fixed between water inlet and the sand collecting pit, it corresponds to be equipped with inlet opening and water inlet and spiral water conservancy diversion piece on the upper interface, is equipped with the sand outlet with sand collecting pit intercommunication on the lower interface.
The diversion part is rotatably arranged in the body, and the top of the diversion part is provided with an impeller positioned in the water inlet.
The water conservancy diversion part includes the body of rod, establishes the upper and lower interface at body of rod upper and lower both ends through the bearing and establishes lie in on the body of rod spiral water conservancy diversion piece between the upper and lower interface, the part of interface is stretched out at the body of rod to the impeller, the water conservancy diversion part passes through upper and lower interface is fixed between water inlet and the sand collecting basin, it corresponds with water inlet and spiral water conservancy diversion piece to be equipped with the inlet opening on the interface, is equipped with the sand outlet with sand collecting basin intercommunication on the lower interface.
The body includes the base, the cover body of being connected with the base, the cover body passes through the tighrening ring and is connected with the base, the filter chamber is established between the base and the cover body, water inlet, delivery port are established on the base, be equipped with on the base and connect the chamber intercommunication filter chamber and delivery port, sand catch basin and sand discharge opening establish the lower part at the cover body.
The upper end and the lower end of the filter element are respectively communicated with the water inlet on the base and the sand collecting pool on the cover body in a watertight manner through an upper annular supporting component and a lower annular supporting component, and the flow guide component is fixed between the upper supporting component and the sand collecting pool through an upper connector and a lower connector.
The filter element is sleeved with the flow guide cover, and a certain gap is formed between the flow guide cover and the outer wall of the filter element.
Advantageous effects
The invention uses the characteristic that water flow washes silt instantly on the premise of not increasing external force, and guides and accelerates the water flow to form impact and counter impact force on the filter element by installing the flow guide component in the filter, thereby preventing the silt from attaching to the surface of the filter element and realizing the effect of automatically cleaning the filter element in the working process of the filter. Its main advantage is as follows:
1. the invention adopts a filtering water inlet and outlet mode different from the prior art, and the water filtering mode of the filter element is changed from the mode of inlet and outlet from the outside of the cylinder body to the mode of inlet and outlet from the inside of the cylinder body, thereby being more beneficial to the concentration, cleaning and discharge of particles. Meanwhile, a flow guide component is arranged in the filter element, water inflow is guided to provide accelerated radial water flow, particles attached to the inner wall of the filter element are washed away and fall into the sand collecting pool while filtering, and the particles are periodically discharged through a sand discharge port provided with a valve, so that the self-cleaning function of the inner wall of the filter element is realized.
2. Adopt pivoted water conservancy diversion part in the body, can strengthen the water conservancy diversion effect, strengthen radial rivers and to the scouring force degree of filter core inner wall, be favorable to wasing adnexed particulate matter on the filter core inner wall, realize the self-cleaning function of filter core inner wall better.
3. The diversion cover is arranged outside the filter element, so that the filtered purified water can be guided to form downward diving water flow, and the washing of particles on the outer wall of the filter element is facilitated. In addition, the part of the purified water passing through the filter element can be blocked by the flow guide cover and returns to the filter element, particles on the inner wall of the filter element can be further washed away, a backflushing effect is achieved, the purified water and radial water flow guided by the flow guide part form double washing, and the self-cleaning function of the inner wall of the filter element is improved.
4. When the sanitation vehicle is used for spraying, the water filter automatically cleans the filter element without manual disassembly and cleaning by a driver every day, and only the drain valve is opened at intervals to discharge particulate matters, so that the time of the driver is saved, and the working efficiency of the sanitation vehicle is improved.
5. The invention has self-cleaning function, and does not need to be repeatedly disassembled, assembled and cleaned, thereby greatly prolonging the service life and reducing the use cost.
The technical scheme of the invention is further explained by combining the attached drawings.
Drawings
Fig. 1 is a schematic structural view of embodiment 1 of the present invention.
Fig. 2 is a cross-sectional view in the direction AA of fig. 1.
Fig. 3 is a schematic view of a guide member in embodiment 1 of the present invention.
Fig. 4 is a schematic structural view of another flow guide member in embodiment 1 of the present invention.
Fig. 5 is a perspective view of the deflector member shown in fig. 4.
Fig. 6 is a schematic structural view of embodiment 2 of the present invention.
Fig. 7 is a perspective view of a guide member in embodiment 2 of the present invention.
Fig. 8 is a schematic view of a flow guide member of another structure in embodiment 2 of the present invention.
Fig. 9 is a schematic structural view of a conventional water filter.
Detailed Description
Referring to fig. 1-3, the water filtering method provided by the invention comprises the steps of adopting a tubular filter element 5 internally provided with a flow guide part, enabling inlet water to enter from the inside of the filter element 5 and penetrate through the wall of the filter element and then flow out for filtering, and simultaneously enabling the inlet water to form radial water flow under the flow guide of the flow guide part 3 to wash particles attached to the inner wall of the filter element so as to realize the self-cleaning function of the inner wall of the filter element.
The water quality filter provided by the invention for realizing the filtering method comprises the following steps:
example 1
Referring to fig. 1-3, the present embodiment includes a body, and a tubular filter element 5 disposed in the body, the body is provided with a water inlet 101, a water outlet 103, a filter chamber 12 communicated with the water outlet 103, a sand collection tank 801, and a sand discharge port 11 communicated with the sand collection tank 801, the filter element 5 is disposed in the filter chamber 12, upper and lower ends of the filter element 5 are respectively communicated with the water inlet 101 and the sand collection tank 801, a flow guide member 3 is disposed in the filter element 5 for guiding inflow water from the water inlet 101 to form radial water flow flowing to an inner wall of the filter element, and an inner diameter of the filter element 5 is 1cm to 50cm, and is preferably 5cm to 15 cm.
When this embodiment filters, the inflow is followed according to the solid arrow direction the water inlet 101 gets into back in the filter core 5 is in form radial rivers and pass the pipe wall of filter core 5 under the water conservancy diversion of water conservancy diversion part 3 and filter the particulate matter of aquatic, warp again delivery port 103 discharges, and adnexed particulate matter an falls into according to the dotted arrow under the erodeing of radial rivers on the inner wall of filter core 5 in sand collection pond 801, through the sand discharge port 11 regular discharge who establishes the valve, can realize the self-cleaning function of 5 inner walls of filter core.
Referring to fig. 1 to 3, the more specific structure of the present embodiment includes: the flow guide component 3 is fixedly arranged in the body, the body comprises a base 1 and a cover body 8 connected with the base 1, the cover body 8 is connected with the base 1 through a fastening ring 4, the filter chamber 12 is arranged between the base 1 and the cover body 8, the water inlet 101 and the water outlet 103 are arranged on the base 1, a connecting cavity 102 is arranged on the base 1 and is communicated with the filter chamber 12 and the water outlet 103, the sand collecting tank 801 and the sand discharge port 11 are arranged at the lower part of the cover body 8, the upper end and the lower end of the filter element 5 are respectively communicated with the water inlet 101 on the base 1 and the sand collecting tank 801 on the cover body 8 through upper and lower annular supporting components 2 and 9, sealing rings 10 are arranged between the upper supporting component 2 and the water inlet 101 and between the lower supporting component 9 and the sand collecting tank 801, the sealing rings 10 are connected with the base 1 through the fastening ring 4, the fastening ring 4 is connected with the base 1 through threads, and can act on the cover body 8 and fasten the filter element 5 on the base 1 through the cover body 8 when the fastening ring 4 is screwed; the water conservancy diversion part 3 includes the body of rod 301, establishes the upper and lower interface 303, 304 at both ends about the body of rod 301 and establishes lie in on the body of rod 301 spiral water conservancy diversion piece 302 between upper and lower interface 303, 304, water conservancy diversion part 3 passes through upper and lower interface 303, 304 are fixed go up between support element 2 and the sand collection pond 801, it is equipped with inlet opening 305 and water inlet 101 and spiral water conservancy diversion piece 302 on the interface 303 and corresponds, is equipped with the sand outlet 306 that communicates with sand collection pond 801 on the lower interface 304.
The inlet water enters the filter element 5 from the water inlet 101 through the water inlet 305 on the upper connector 303 of the flow guide component 3, and rotates from top to bottom under the action of the flow guide and the centrifugal force of the spiral flow guide sheet 302 to form radial water flow. The purified water filtered by the filter element 5 is discharged from the filter chamber 12 through the connecting cavity 102 from the water outlet 103.
Referring to fig. 1-2, in this embodiment, a flow guide cover 6 may be further disposed outside the filter element 5, a certain gap 7 is formed between the flow guide cover 6 and the outer wall of the filter element 5, and the gap 7 is preferably 2-5 mm; the air guide sleeve 6 is fixed on the base 1 through threads.
Because the flow guide cover 6 is arranged outside the filter element 5, the part of the purified water passing through the filter element 5 can be blocked by the flow guide cover 6 and returns to the filter element 5, particles on the inner wall of the filter element 5 can be further washed away, a backflushing effect is achieved, the purified water and the radial water flow guided by the flow guide part 3 form double washing, and the self-cleaning function of the inner wall of the filter element 5 is further enhanced. Most of the purified water washes the outer wall of the cylinder body of the filter element 5 downwards under the action of the flow guide cover 6 and flows out from the bottom of the flow guide cover 6 in a centralized manner, so that the self-cleaning function of the outer wall of the filter element 5 is realized.
The guide component 3 has the function of guiding water entering the filter element 5 to form radial water flow with certain flow velocity to wash the inner wall of the filter element 5, so that the guide component 3 with the same function but different structures can be designed. For example, as shown in fig. 4 and 5, another flow guide component 3 includes a hollow pipe 309, upper and lower ports 303 and 304 provided at upper and lower ends of the pipe 309, and a plurality of conical flow guide covers 308 provided on the pipe 309 between the ports 303 and 304, a water distribution hole 307 circumferentially provided on the pipe 309 between the upper and lower flow guide covers 308, the flow guide component 3 is fixed between the upper support component 2 and the sand collecting basin 801 through the upper and lower ports 303 and 304, a water inlet hole 305 provided on the upper port 303 communicates with the water inlet 101 and the pipe 309, and a sand outlet 306 communicating with the sand collecting basin 801 is provided on the lower port 304. After entering the pipe body 309 through the water inlet 305 of the upper connector 303, the inlet water flows out through the water distribution holes 307 of each layer, and radial water flows distributed up and down are formed under the flow guiding action of each flow guiding cover 308 to wash the inner wall of the filter element 5.
Example 2
Referring to fig. 6 and 7, the present embodiment is different from embodiment 1 in that the flow guide member 3 is rotatably disposed in the body, and the top of the flow guide member 3 is provided with an impeller 310 disposed in the water inlet 101 and rotatably disposed in the filter element 5. Its concrete structure includes the body of rod 301, establishes the upper and lower interface 303, 304 at body of rod 301 upper and lower both ends through bearing 311 and establishes lie in on the body of rod 301 spiral water conservancy diversion piece 302 between upper and lower interface 303, 304, impeller 307 establishes the part that body of rod 301 stretches out interface 303, and water conservancy diversion part 3 passes through upper and lower interface 303, 304 are fixed between last supporting component 2 and sand collection pond 801, go up and are equipped with inlet opening 305 on the interface 303 and correspond with water inlet 101 and spiral water conservancy diversion piece 302, are equipped with the sand outlet 306 that communicates with sand collection pond 801 on the interface 304 down.
During filtering, the inlet water enters the water inlet 101 and then pushes the impeller 310 to rotate, and the impeller 310 drives the spiral flow deflector 302 to rotate through the rod body 301. The spiral flow deflector 302 rotates and guides the flow, so that the flow guiding effect can be enhanced, the scouring force of radial water flow on the inner wall of the filter element 5 is increased, the cleaning of attached particles a on the inner wall of the filter element 5 is facilitated, and the self-cleaning function of the inner wall of the filter element 5 is better realized.
In this embodiment, the flow guide member 3 may also adopt another structure, as shown in fig. 8, a spiral flow guide piece 302 (see fig. 7) on a rod body 301 is eliminated, a tubular body 312 provided with a vertical strip-shaped water outlet 313 is adopted between an upper interface 303 and a lower interface 304, a plurality of water outlets 313 are arranged around the tubular body 312, and the installation mode of the flow guide member 3 is unchanged. During filtering, when water enters the tubular body 312 through the impeller 310, the water enters the tubular body 312 through the water inlet 305, and is guided by the water outlet 313 on the tubular body 312 to form radial water flow to flush and self-clean the inner wall of the filter element 5.
Claims (9)
1. A water quality filtering method is characterized by comprising the steps of adopting a tubular filter element internally provided with a flow guide part, enabling water to enter the filter element and flow out after penetrating through the wall of the filter element tube for filtering, and simultaneously forming radial water flow under the flow guide of the flow guide part to wash particles attached to the inner wall of the filter element so as to realize the self-cleaning function of the inner wall of the filter element.
2. The utility model provides a water quality filter, characterized by includes the body, establishes at this internal tubulose filter core, the body be equipped with water inlet, delivery port, with the filter chamber of delivery port intercommunication, sand collecting tank, with the sand discharge mouth of sand collecting tank intercommunication, the filter core is established in the filter chamber, the upper and lower both ends of filter core respectively with water inlet and sand collecting tank intercommunication, be equipped with in the filter core and form the water conservancy diversion part of the radial rivers that flow to the filter core inner wall with the water conservancy diversion that intakes that come from the water inlet, the internal diameter of filter core is 1 cm-50 cm.
3. A water quality filter according to claim 2 wherein said diversion component is fixedly disposed in said body, said diversion component comprises a rod body, upper and lower ports disposed at upper and lower ends of said rod body, and a spiral diversion piece disposed on said rod body between said upper and lower ports, said diversion component is fixed between said water inlet and sand collecting basin through said upper and lower ports, said upper port is provided with a water inlet hole corresponding to said water inlet and said spiral diversion piece, and said lower port is provided with a sand outlet hole communicating with said sand collecting basin.
4. A water quality filter according to claim 2 wherein the flow guide member is rotatably provided in the body, and an impeller provided in the water inlet is provided on a top of the flow guide member.
5. A water quality filter according to claim 4 wherein said diversion member comprises a rod body, upper and lower ports provided at upper and lower ends of the rod body through bearings, and a spiral diversion piece provided on said rod body between said upper and lower ports, wherein an impeller is provided at a portion of the rod body extending from the upper port, said diversion member is fixed between said water inlet and said sand collection tank through said upper and lower ports, the upper port is provided with a water inlet hole corresponding to the water inlet and the spiral diversion piece, and the lower port is provided with a sand outlet communicated with the sand collection tank.
6. A water quality filter according to any one of claims 2 to 5 wherein the body comprises a base and a cover connected to the base, the cover is connected to the base by a fastening ring, the filter chamber is disposed between the base and the cover, the water inlet and the water outlet are disposed on the base, a connecting cavity is disposed on the base to connect the filter chamber and the water outlet, and the sand trap and the sand discharge port are disposed at the lower portion of the cover.
7. A water quality filter according to claim 6 wherein the upper and lower ends of the filter element are in watertight communication with the water inlet on the base and the sand collecting tank on the cover through upper and lower annular support members, respectively, and the flow guide member is fixed between the upper support member and the sand collecting tank through the upper and lower ports.
8. A water quality filter according to claim 2, wherein a flow guide cover is sleeved outside the filter element, and a certain gap is formed between the flow guide cover and the outer wall of the filter element.
9. A water quality filter according to claim 7 wherein a flow guide cover is sleeved outside the filter element, and a certain gap is formed between the flow guide cover and the outer wall of the filter element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211225069.5A CN115487569A (en) | 2022-10-09 | 2022-10-09 | Water quality filtering method and filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211225069.5A CN115487569A (en) | 2022-10-09 | 2022-10-09 | Water quality filtering method and filter |
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| CN115487569A true CN115487569A (en) | 2022-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211225069.5A Pending CN115487569A (en) | 2022-10-09 | 2022-10-09 | Water quality filtering method and filter |
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| CN (1) | CN115487569A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120273746A (en) * | 2025-06-06 | 2025-07-08 | 山西路桥第四工程有限公司 | Tunnel waterproof and drainage structure |
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| CN213060393U (en) * | 2020-05-29 | 2021-04-27 | 华帝股份有限公司 | Filter and water heater using same |
| CN111773802A (en) * | 2020-08-06 | 2020-10-16 | 淮南矿业(集团)有限责任公司 | A kind of high-pressure water filtration method |
| WO2022041090A1 (en) * | 2020-08-26 | 2022-03-03 | 南京苏环环境互联科技有限公司 | Pressure filtering system and filtering method thereof |
| CN112023482A (en) * | 2020-08-31 | 2020-12-04 | 杭州沁田科技有限公司 | Leading filter of central authorities |
| WO2022166997A1 (en) * | 2021-02-07 | 2022-08-11 | 徐州工程学院 | Automatic backwash filter and working method |
| CN217431018U (en) * | 2021-06-30 | 2022-09-16 | 北京燕山威立雅水务有限责任公司 | Pre-filter for UF/RO system |
| CN218686914U (en) * | 2022-10-09 | 2023-03-24 | 长沙久信科技有限公司 | Water quality filtering device |
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| CN120273746A (en) * | 2025-06-06 | 2025-07-08 | 山西路桥第四工程有限公司 | Tunnel waterproof and drainage structure |
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