CN113996101A - Liquid filtering system - Google Patents

Liquid filtering system Download PDF

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Publication number
CN113996101A
CN113996101A CN202111389970.1A CN202111389970A CN113996101A CN 113996101 A CN113996101 A CN 113996101A CN 202111389970 A CN202111389970 A CN 202111389970A CN 113996101 A CN113996101 A CN 113996101A
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CN
China
Prior art keywords
cleaning
filter
self
filtration system
filter core
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111389970.1A
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Chinese (zh)
Inventor
孙骏
贺永安
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kosma Filtration Technology Co ltd
Original Assignee
Kosma Filtration Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Kosma Filtration Technology Co ltd filed Critical Kosma Filtration Technology Co ltd
Priority to CN202111389970.1A priority Critical patent/CN113996101A/en
Publication of CN113996101A publication Critical patent/CN113996101A/en
Pending legal-status Critical Current

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    • 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
    • B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
    • B01D29/6407—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element brushes
    • B01D29/6423—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element brushes with a translational movement with respect to the filtering element
    • 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
    • B01D29/33—Self-supporting filtering elements arranged for inward 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
    • B01D29/50—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 multiple filtering elements, characterised by their mutual disposition
    • B01D29/52—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 multiple filtering elements, characterised by their mutual disposition in parallel connection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/143—Filter condition indicators

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)

Abstract

The utility model belongs to the field of filters, a liquid filtration system is related to, its technical scheme main points are including filter vat and a plurality of filter core, the water inlet department of filter vat installs pressure-sensitive valve, the filter core is connected in the filter vat, be provided with the multiunit self-cleaning subassembly that is used for cleaning the filter core in the filter vat, the self-cleaning subassembly includes annular cleaning brush, the self-cleaning subassembly is connected with the drive assembly who is used for driving the clean filter core of self-cleaning subassembly, pressure-sensitive valve and drive assembly connect control center jointly. This application has the self-cleaning who realizes the filter core, reduces the effect of the change frequency of filter core.

Description

Liquid filtering system
Technical Field
The present application relates to the field of filters, and more particularly, to a liquid filtration system.
Background
The filter is indispensable for family life and some factory productions, and in order to reach the clean purpose of using water, be provided with the filter core in the filter, the filter core is the part that is used for carrying out the filterable with the running water, and the running water after being filtered can normally come into operation.
There is a prior chinese patent, reference publication No. CN111054114A, which discloses a liquid filter comprising: the filter comprises a liquid inlet pipe, a cylinder, a filter assembly, a liquid outlet pipe and a sewage discharge pipe; the liquid inlet pipe is used for flowing in liquid and communicated with the cylinder wall of the cylinder; the filter assembly comprises a multifunctional flange hole plate, an isolation cylinder, one or more filter baskets and an oval ring plate, liquid can flow into the drainage cavity from the liquid inlet pipe, flows into one or more filter baskets from a plurality of through holes to be filtered, solid particles are remained in one or more filter baskets, and filtered filtrate flows out from the liquid outlet pipe, so that the residual filtrate in the cylinder can be discharged from the sewage discharge pipe in time.
In view of the above-mentioned related art, the inventor believes that there is a defect that the filter basket needs to be replaced when the outer surface of the filter basket is contaminated after the filter is used for a long time.
Disclosure of Invention
To reduce the frequency of filter basket replacement, the present application provides a liquid filtration system.
The application provides a liquid filtration system adopts following technical scheme:
the utility model provides a liquid filtration system, includes filter vat and a plurality of filter core, and the water inlet department of filter vat installs pressure-sensitive valve, and the filter core is connected in the filter vat, is provided with the multiunit self-cleaning subassembly that is used for clean filter core in the filter vat, and the self-cleaning subassembly includes annular cleaning brush, and the self-cleaning subassembly is connected with the drive assembly who is used for driving the clean filter core of self-cleaning subassembly, and pressure-sensitive valve and drive assembly connect control center jointly.
By adopting the technical scheme, the dirt with the largest particle size is blocked by the outer surface of the filter element, so that the dirt on the outer surface of the filter element is most accumulated; pressure-sensitive valve, self-cleaning subassembly and drive assembly's cooperation is used in this application for when the filter core surface dirt is more, the water pressure increase in the filter vat triggers pressure-sensitive valve, control center control drive assembly starts, the clean filter core of drive assembly drive self-cleaning subassembly, the cleaning brush strikes off the dirt of filter core outer wall totally under drive assembly's drive, thereby realizes the self-cleaning of filter core, reduces the change frequency of filter core.
Optionally, a water suction pump is installed at a sewage discharge port of the filter barrel and connected with the control center.
Through adopting above-mentioned technical scheme, the setting of water suction pump for self-cleaning subassembly is when clean filter core, and the dirty water of water suction pump in with the filter vat is constantly taken out, and after the water pressure that pressure sensitive valve detected resumes the constant value, it is clean to prove that self-cleaning subassembly is with the filter core surface, and drive assembly stops the drive, and the water suction pump stops drawing water.
Optionally, the bottom end of the filter element is fixedly connected with a mud dispersing plate.
Through adopting above-mentioned technical scheme, the setting of scattered mud board for the back is scraped off to the dirt of self-cleaning subassembly with the filter core outer wall, and the dirt can not pile up, disperses on scattered mud board easily, thereby is dispersed by the water-washed more easily, and clears up.
Optionally, the mud dispersing plate is trumpet-shaped.
By adopting the technical scheme, the trumpet-shaped mud dispersing plate is designed, so that dirt can be dispersed along the smooth mud dispersing plate, and the dirt is more easily dispersed into water, is more easily dispersed by water and is cleaned.
Optionally, the automatic cleaning assembly further comprises annular cleaning cotton, the cleaning cotton is located on one side close to the top end of the filter element, and the cleaning cotton is coaxial with the cleaning brush and fixedly connected with the cleaning brush.
Through adopting above-mentioned technical scheme, the design of clean cotton for the dirt brush back of opening on the cleaning brush will filter core outer wall, the power of gluing of dirt and filter core outer wall reduces, and clean cotton further strikes off the dirt on the filter core outer wall, and then the dirt of filter core outer wall is by the cleaner of clearance.
Optionally, the driving assembly includes a driving member and a plurality of connecting rods, the driving member is connected to the plurality of connecting rods, and one side of the connecting rod, which is away from the driving member, is connected to the automatic cleaning assembly; the driving piece is connected with the filter vat.
Through adopting above-mentioned technical scheme, drive assembly's setting for the driving piece can drive a plurality of connecting rods motions simultaneously, and the connecting rod can drive the motion of self-cleaning subassembly, and the self-cleaning subassembly is clean with the filter core outer wall.
Optionally, the driving member housing is provided with a waterproof box.
Through adopting above-mentioned technical scheme, the driving piece has been protected in the setting of waterproof box for the driving piece can be isolated with water, thereby normal operating, the clean filter core of drive self-cleaning subassembly.
Optionally, a connecting hole for the driving part to move is formed in the waterproof box, and a waterproof sealing ring is fixedly connected to the inner wall of the connecting hole.
Through adopting above-mentioned technical scheme, the setting of waterproof sealing washer for the driving piece can be in the rose box free activity, and the water in the filter vat is difficult for getting into in the driving piece.
Optionally, install the stirring fan in the filter vat, the stirring fan is located self-cleaning subassembly one side.
Through adopting above-mentioned technical scheme, the setting of stirring fan for after the self-cleaning subassembly is clean with the filter core, get back to the home position, the stirring fan rotates, increases the rivers impact force, and rivers erode clean cotton and clean brush, guarantee the cleanness of clean cotton and clean brush.
To sum up, the present application includes at least one of the following beneficial technical effects of a liquid filtration system:
1. in the application, when the filter element is blocked, the water pressure in the filter barrel is increased, the pressure-sensitive valve is triggered, the control center controls the driving assembly to start, the driving assembly drives the automatic cleaning assembly to clean the filter element, and the cleaning brush is driven by the driving assembly to scrape off dirt on the outer wall of the filter element completely, so that the automatic cleaning of the filter element is realized, and the replacement frequency of the filter element is reduced;
2. in the application, the water suction pump continuously pumps out dirty water in the filter box until the water pressure detected by the pressure sensitive valve returns to a normal value, the self-cleaning assembly is proved to clean the filter element, the driving assembly stops driving, and the water suction pump stops pumping water;
3. the setting of stirring fan for after the automatic drive subassembly is clean with the filter core, get back to home position, the stirring fan rotates, increases the rivers impact force, and rivers erode clean cotton and cleaning brush, guarantee the cleanness of clean cotton and cleaning brush.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present application;
fig. 2 is a schematic view intended to show the construction of a filtering vat;
FIG. 3 is a schematic view for showing the structure of the filter element and the mud dispersing plate;
fig. 4 is a schematic diagram for illustrating the structure of the automatic cleaning assembly and the driving assembly.
Description of reference numerals: 1. a filter vat; 11. a clear water tank; 12. a water purifying pipe; 121. a waterproof gasket; 13. a water inlet; 14. a water outlet; 2. a filter element; 21. a mud dispersing plate; 3. an automatic cleaning assembly; 31. a cleaning brush; 32. cleaning cotton; 4. a drive assembly; 41. a drive member; 42. a connecting rod; 421. a first fixing lever; 422. a second fixing bar; 423. a first retaining ring; 424. a second retaining ring; 5. a waterproof box; 51. connecting holes; 52. a waterproof sealing ring; 6. a water inlet pipe; 61. a pressure sensitive valve; 7. a water outlet pipe; 71. a water suction pump; 8. a stirring fan; 81. an electric motor.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses a liquid filtration system. Referring to fig. 1 and 2, a liquid filtering system comprises a filtering barrel 1, a filter element 2, a clean water reservoir 11, an automatic cleaning assembly 3 and a driving assembly 4, wherein a pressure-sensitive valve 61 is installed at a water inlet 13 of the filtering barrel 1, and a water suction pump 71 is installed at a water outlet 14 of the filtering barrel 1; the filter element 2, the clean water reservoir 11 and the automatic cleaning component 3 are all arranged in the filter vat 1, the filter element 2 is connected with the clean water reservoir 11, and the clean water reservoir 11 is communicated with the outside of the filter vat 1; the automatic cleaning assembly 3 is connected with the filter element 2, the driving assembly 4 is connected with the automatic cleaning assembly 3, and the pressure-sensitive valve 61, the driving assembly 4 and the water suction pump 71 are connected with a control center together.
When clean water is normally used, tap water firstly enters the filter barrel 1 from the water inlet 13, if the filter element 2 is seriously blocked after the filter element 2 is used for a long time, the pressure-sensitive valve 61 senses that the water pressure is increased, the control center controls the driving assembly 4 to start, the driving assembly 4 controls the automatic cleaning assembly 3 to automatically clean the filter element 2, and the water in the filter barrel 1 is pumped out by the water suction pump 71 while the automatic cleaning assembly 3 automatically cleans the filter element 2; after the filter element 2 is cleaned, the pressure-sensitive valve 61 senses that the water pressure is recovered to be normal, the control center controls the driving assembly 4 to stop driving the automatic cleaning assembly 3 to clean the filter element 2, and the water suction pump 71 stops pumping out water in the filter barrel 1.
Referring to fig. 1, the filter vat 1 may be set to any shape, in this embodiment, the filter vat 1 is a cylindrical structure, the filter vat 1 is provided with a water inlet 13 and a water outlet 14, and the water inlet 13 and the water outlet 14 are symmetrically arranged about the center of the filter vat 1; the filter vat 1 is fixedly connected with a water inlet pipe 6, the water inlet pipe 6 is communicated with the water inlet 13, the water inlet pipe 6 and the filter vat 1 are integrally formed, and the pressure-sensitive valve 61 is arranged on the water inlet pipe 6; the filter vat 1 is fixedly connected with a water outlet pipe 7, the water outlet pipe 7 is communicated with a water outlet 14, the water outlet pipe 7 and the filter vat 1 are integrally formed, and the water outlet pipe 7 is provided with a water suction pump 71.
Referring to fig. 2 and 3, the clean water tank 11 can be set to any shape, in this embodiment, the clean water tank 11 is a hemispherical structure, the filter element 2 is a cylindrical tubular structure, the bottom end of the filter element 2 is open, the top end of the filter element is sealed, the filter element 2 is provided with a plurality of filter elements, in this embodiment, the filter elements 2 are provided with 5 filter elements, the 5 filter elements 2 are distributed at the top of the clean water tank 11 at equal intervals, and the bottom end of the filter element 2 is fixedly communicated with the clean water tank 11; the bottom of the filter element 2 is annularly provided with a mud dispersing plate 21, the mud dispersing plate 21 is of a horn-shaped structure, the top end of the mud dispersing plate 21 is fixedly bonded with the filter element 2, and the bottom end of the mud dispersing plate is fixedly bonded with the water purification tank 11. The bottom of the clean water tank 11 is fixedly communicated with a clean water pipe 12, the clean water pipe 12 is connected with the clean water tank 11 through a water pipe connector, the clean water pipe 12 penetrates out of the filter vat 1, a waterproof sealing gasket 121 is arranged at the position of the penetrating port of the filter vat 1 of the clean water pipe 12, and the waterproof sealing gasket 121 is fixedly bonded with the filter vat 1 and the clean water pipe 12.
Referring to fig. 4, the automatic cleaning assemblies 3 are arranged into a plurality of groups, the number of the automatic cleaning assemblies 3 is equal to that of the filter elements 2, and the automatic cleaning assemblies 3 are arranged in equal intervals; automatic cleaning assembly 3 includes cleaning brush 31 and cleaning cotton 32, and cleaning brush 31 is the annular structure, and cleaning cotton 32 is the annular structure, and cleaning brush 31 equals with cleaning cotton 32's diameter, and cleaning brush 31 coincides with cleaning cotton 32's axis, and cleaning brush 31 is located cleaning cotton 32 and is close to clean water basin 11 one side, and cleaning brush 31 bonds fixedly with cleaning cotton 32, and overlaps jointly to establish on filter core 2 to with the outer wall butt of filter core 2.
Referring to fig. 4, the driving assembly 4 includes a driving member 41 and a connecting rod 42, the driving member 41 is a telescopic cylinder, a waterproof box 5 is disposed outside the driving member 41, the waterproof box 5 is welded and fixed to the filter vat 1, the waterproof box 5 is a rectangular box body, and the driving member 41 is fixedly connected to the waterproof box 5 through bolts; the bottom surface of the waterproof box 5 is provided with a connecting hole 51, a waterproof sealing ring 52 is fixedly bonded inside the connecting hole 51, and the waterproof sealing ring 52 is slidably connected with the piston rod of the driving member 41.
Referring to fig. 2 and 4, the connection rod 42 includes a first fixing rod 421, a second fixing rod 422, a first fixing ring 423 and a second fixing ring 424, the first fixing rod 421 is provided as one rod, the length direction of the first fixing rod 421 is perpendicular to the length direction of the driving member 41, and the first fixing rod 421 is connected to the telescopic rod of the driving member 41 through a cylinder connector; the quantity of second dead lever 422 equals with the quantity of filter core 2, the position of second dead lever 422 corresponds the setting with the position of filter core 2, the length direction of second dead lever 422 is perpendicular with the length direction of first dead lever 421, second dead lever 422 one end passes through go-between fixed connection with first dead lever 421, and integrated into one piece, second dead lever 422 deviates from first dead lever 421 one end and first solid fixed ring 423 fixed connection, and integrated into one piece, be connected with the connecting axle between first solid fixed ring 423 and the solid fixed ring 424 of second, connecting axle one end and first solid fixed ring 423 fixed connection, and integrated into one piece, the connecting axle other end and the solid fixed ring 424 fixed connection of second, and integrated into one piece.
Referring to fig. 4, the cleaning cotton 32 is sleeved on the first fixing ring 423 and is bonded and fixed with the first fixing ring 423, and the cleaning brush 31 is sleeved on the first fixing ring 423 and is fixedly connected with the second fixing ring 424 and is integrally formed.
The control center controls the driving part 41 to start, the driving part 41 drives the first fixing rod 421 to move downwards, the first fixing rod 421 drives the second fixing rod 422 to move downwards, the second fixing rod 422 drives the first fixing ring 423 and the second fixing ring 424 to move downwards, the first fixing ring 423 and the second fixing ring 424 drive the cleaning cotton 32 and the cleaning brush 31 to move downwards, the cleaning brush 31 firstly scrapes the outer wall of the filter element 2, dirt on the outer wall of the filter element 2 is loosened, then the cleaning cotton 32 continuously erases the dirt on the outer wall of the filter element 2, the dirt on the outer wall of the filter element 2 is completely pushed onto the dirt scattering plate 21, water flow in the filter vat 1 scatters the dirt into water, and the water suction pump 71 pumps out water in the filter vat 1. The water filtered by the filter element 2 enters the middle part of the filter element 2, flows into the clean water tank 11 from the middle part of the filter element 2, flows out of the clean water pipe 12 along the clean water tank 11 and finally flows out of the filter barrel 1.
Referring to fig. 2, can install a plurality of stirring fans 8 in the clean water basin 11, install two stirring fans 8 in this embodiment, two stirring fans 8 set up about the 2 symmetries of filter core at middle part, and are located one side at 2 tops of filter core, and stirring fan 8 is connected with motor 81, and motor 81 is located the filter vat 1 outside, and motor 81 passes through bolt fixed connection with filter vat 1.
When the control center controls the automatic cleaning component 3 to stop cleaning, the telescopic rod of the driving part 41 is retracted into the driving part 41 to indirectly drive the cleaning cotton 32 and the cleaning brush 31 to move to the top of the filter element 2, the motor 81 is started to drive the stirring fan 8 to stir in water, and the water flow flows and continuously washes away the dirt on the cleaning cotton 32 and the cleaning brush 31.
The implementation principle of a liquid filtration system in the embodiment of the application is as follows: when normally using clean water, the running water firstly gets into filter vat 1 from water inlet 13, filter core 2 blocks up seriously, then pressure-sensitive valve 61 perception water pressure increase, control center control driving piece 41 starts, driving piece 41 drives first dead lever 421, second dead lever 422, first solid fixed ring 423 and the solid fixed ring 424 of second move down, first solid fixed ring 423 and the solid fixed ring 424 of second drive clean cotton 32 and clean brush 31 move down, clean cotton 32 and clean brush 31 all promote the dirt of filter core 2 outer wall to scattered mud board 21 on, rivers in the filter vat 1 break away the dirt to the water in, water in the filter vat 1 is taken out to water suction pump 71. When the control center controls the automatic cleaning component 3 to stop cleaning, the telescopic rod of the driving part 41 is retracted into the driving part 41 to indirectly drive the cleaning cotton 32 and the cleaning brush 31 to move to the top of the filter element 2, the motor 81 is started to drive the stirring fan 8 to stir in water, and the water flow flows and continuously washes away the dirt on the cleaning cotton 32 and the cleaning brush 31.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. A liquid filtration system, characterized by: including filter vat (1) and a plurality of filter core (2), water inlet (13) department of filter vat (1) installs pressure-sensitive valve (61), filter core (2) are connected in filter vat (1), be provided with multiunit self-cleaning subassembly (3) that are used for cleaning filter core (2) in filter vat (1), self-cleaning subassembly (3) are including annular cleaning brush (31), self-cleaning subassembly (3) are connected with drive assembly (4) that are used for driving self-cleaning subassembly (3) clean filter core (2), pressure-sensitive valve (61) and drive assembly (4) connection control center jointly.
2. A liquid filtration system according to claim 1 wherein: a water suction pump (71) is installed at a sewage discharge port of the filter barrel (1), and the water suction pump (71) is connected with a control center.
3. A liquid filtration system according to claim 1 wherein: the bottom end of the filter element (2) is fixedly connected with a mud dispersing plate (21).
4. A liquid filtration system according to claim 3 wherein: the mud dispersing plate (21) is horn-shaped.
5. A liquid filtration system according to claim 1 wherein: the automatic cleaning assembly (3) further comprises annular cleaning cotton (32), the cleaning cotton (32) is located on one side close to the top end of the filter element (2), and the cleaning cotton (32) is coaxial with the cleaning brush (31) and fixedly connected with the cleaning brush.
6. A liquid filtration system according to claim 1 wherein: the driving assembly (4) comprises a driving part (41) and a plurality of connecting rods (42), the driving part (41) is connected with the connecting rods (42), and one side, departing from the driving part (41), of each connecting rod (42) is connected with the automatic cleaning assembly (3); the driving piece (41) is connected with the filter vat (1).
7. A liquid filtration system according to claim 6 wherein: the driving part (41) is covered with a waterproof box (5).
8. A liquid filtration system according to claim 7 wherein: the waterproof box (5) is provided with a connecting hole (51) for the driving part (41) to move, and the inner wall of the connecting hole (51) is fixedly connected with a waterproof sealing ring (52).
9. A liquid filtration system according to claim 1 wherein: install stirring fan (8) in filter vat (1), stirring fan (8) are located self-cleaning subassembly (3) one side.
CN202111389970.1A 2021-11-22 2021-11-22 Liquid filtering system Pending CN113996101A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111389970.1A CN113996101A (en) 2021-11-22 2021-11-22 Liquid filtering system

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Application Number Priority Date Filing Date Title
CN202111389970.1A CN113996101A (en) 2021-11-22 2021-11-22 Liquid filtering system

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CN113996101A true CN113996101A (en) 2022-02-01

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CN214714811U (en) * 2021-01-20 2021-11-16 生态环境部环境规划院 Automatic treatment system for livestock breeding sewage
CN214551574U (en) * 2021-02-03 2021-11-02 北京安龙特种车辆有限公司 Vehicle-mounted preposed water filtering device and vehicle-mounted water purifying system
CN113082814A (en) * 2021-03-18 2021-07-09 孙大乾 Marine seawater filtering device convenient to clean
CN113648705A (en) * 2021-08-18 2021-11-16 江苏吉隆环保科技有限公司 Filter core with self-cleaning function for sewage treatment

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Application publication date: 20220201