CN110694336A - Filter element cleaning assembly, water purifier and filter element cleaning method - Google Patents
Filter element cleaning assembly, water purifier and filter element cleaning method Download PDFInfo
- Publication number
- CN110694336A CN110694336A CN201911102000.1A CN201911102000A CN110694336A CN 110694336 A CN110694336 A CN 110694336A CN 201911102000 A CN201911102000 A CN 201911102000A CN 110694336 A CN110694336 A CN 110694336A
- Authority
- CN
- China
- Prior art keywords
- water
- filter element
- backwashing
- backwash
- pipeline
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 384
- 238000004140 cleaning Methods 0.000 title claims abstract description 75
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000011001 backwashing Methods 0.000 claims abstract description 103
- 238000003860 storage Methods 0.000 claims abstract description 41
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 36
- 239000003381 stabilizer Substances 0.000 claims description 27
- 238000001914 filtration Methods 0.000 claims description 14
- 239000008213 purified water Substances 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 239000003344 environmental pollutant Substances 0.000 abstract description 8
- 231100000719 pollutant Toxicity 0.000 abstract description 8
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 239000012528 membrane Substances 0.000 description 13
- 238000012805 post-processing Methods 0.000 description 8
- 238000005406 washing Methods 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000012535 impurity Substances 0.000 description 5
- 238000000108 ultra-filtration Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 238000001471 micro-filtration Methods 0.000 description 3
- 238000001728 nano-filtration Methods 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- 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
- B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
-
- 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
-
- 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
- B01D35/147—Bypass or safety valves
- B01D35/1475—Pressure relief valves or pressure control valves
-
- 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
- B01D35/153—Anti-leakage or anti-return valves
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/03—Pressure
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2307/00—Location of water treatment or water treatment device
- C02F2307/10—Location of water treatment or water treatment device as part of a potable water dispenser, e.g. for use in homes or offices
Abstract
The invention relates to a filter element cleaning assembly which comprises a backwashing tank, a water storage pipeline, a pressure stabilizing device, a backwashing pipeline and a backwashing valve. The backwashing tank can store a certain amount of backwashing water, the water storage pipeline is provided with a water storage inlet and a water storage outlet, the water storage outlet is communicated with the backwashing tank, the water storage inlet is communicated with the water outlet end of the water pump, and the pressure stabilizing device is connected in series with the water storage pipeline. The backwash pipeline has backwash water inlet and backwash water export, and backwash water inlet and backwash jar intercommunication, backwash water export be used for with the filter core intercommunication, the backwash pipeline can be carried the backwash water in the backwash jar to filter core department. The backwashing valve is connected in series with the backwashing pipeline. The invention also relates to a water purifier comprising the filter element cleaning assembly and a filter element cleaning method. According to the filter element cleaning assembly, the water purifier and the filter element cleaning method, the filter element cleaning assembly can clean the filter element of the water purifier, so that pollutants intercepted on the surface of the filter element can be removed in time, the service life of the filter element is prolonged, and the service performance of the water purifier is ensured.
Description
Technical Field
The invention relates to the technical field of water filtration and purification, in particular to a filter element cleaning assembly, a water purifier and a filter element cleaning method.
Background
In the application process of the water purifier, the pretreatment filter element can be generally used for removing impurities such as silt, suspended matters, rust, colloid, bacteria, large-particle substances and the like contained in tap water. In the higher abominable quality of water area of impurity content, along with the extension of purifier system water time, have a large amount of impurity attached to the preliminary treatment filter core, cause the life of preliminary treatment filter core short, and then lead to the problem that the preliminary treatment filter core is changed frequently or is influenced the purifier performance, user experience feels poor.
Disclosure of Invention
Based on this, it is necessary to provide a filter element cleaning assembly, a water purifier and a filter element cleaning method, which can clean the filter element in time, for solving the problem of short service life of the filter element in the existing water purifier.
A cartridge cleaning assembly comprising:
a backwash tank capable of storing a certain amount of backwash water;
the water storage pipeline is provided with a water storage inlet and a water storage outlet, the water storage outlet is communicated with the backwashing tank, and the water storage inlet is communicated with a water outlet end of the water pump;
the pressure stabilizing device is connected in series with the water storage pipeline and is used for adjusting the water pressure flowing through the pressure stabilizing device within a certain range;
the backwashing pipeline is provided with a backwashing water inlet and a backwashing water outlet, the backwashing water inlet is communicated with the backwashing tank, the backwashing water outlet is used for being communicated with the filter element, and the backwashing pipeline can convey backwashing water in the backwashing tank to the filter element;
and the backwashing valve is connected in series with the backwashing pipeline and is used for controlling the flow of backwashing water in the backwashing pipeline.
In one embodiment, the pressure stabilizer comprises a pressure reducing valve or a pressure stabilizing valve, and the pressure stabilizing value of the pressure stabilizer is adjustable or fixed.
In one embodiment, the pressure stabilizing device has an adjustable pressure stabilizing value, and the pressure stabilizing device adjusts the pressure of water flowing through the pressure stabilizing device to be within a first preset pressure range.
In one embodiment, the pressure stabilizing value of the pressure stabilizing device is fixed, and the pressure stabilizing device regulates the water pressure value flowing through the pressure stabilizing device to be 0.25 Mpa.
In one embodiment, the backwash valve comprises a backwash switch and a backwash check valve, and the backwash switch and the backwash check valve are respectively connected in series with the backwash pipeline.
In one embodiment, the backwashing tank is spherical, cylindrical, square or irregular, and has a volume of less than or equal to 5 liters.
In one embodiment, the filter element cleaning assembly comprises a plurality of backwashing tanks, the plurality of backwashing tanks are respectively communicated with the water storage outlet and the backwashing water inlet, and the plurality of backwashing tanks are connected in series or in parallel.
A water purifier comprises a filter element, a water pump and the filter element cleaning assembly in any scheme; the water pump is provided with a water inlet end and a water outlet end, the filter element is provided with a water inlet end and a purified water outlet end, the water inlet end of the filter element is communicated with a water source, the purified water outlet end of the filter element is communicated with the water inlet end of the water pump, the water outlet end of the water pump is communicated with the water storage inlet of the water storage pipeline, the backwashing water outlet of the backwashing pipeline is communicated with the purified water outlet end of the filter element, and the backwashing pipeline can convey backwashing water to enter the filter element in the reverse direction.
In one embodiment, the water purifier further comprises a water discharge pipeline and a water discharge control valve, the water discharge pipeline is communicated with the filter element, the water discharge pipeline is used for discharging backwashing water used for washing the filter element, and the water discharge control valve is used for controlling the on-off of the water discharge pipeline.
In one embodiment, the water purifier further comprises a water guide pipeline and a water guide valve, the water guide pipeline is communicated with the water outlet end of the water pump or the water purifying water outlet end of the filter element, the water guide valve is connected in series with the water guide pipeline, and the water guide valve is used for controlling the on-off of the water guide pipeline; the water guide pipeline conveys water flowing through the water pump to a user for use, or the water guide pipeline conveys water flowing through the filter element to a subsequent water treatment assembly.
In one embodiment, the water purifier further comprises a fine filtering and post-processing assembly, the fine filtering and post-processing assembly is communicated with the water guide pipeline, and the water guide pipeline conveys the water flowing through the filter element to the fine filtering and post-processing assembly.
A filter element cleaning method is applied to the water purifier in any one of the schemes, and after the filter element accumulates water for a first preset time, the method for cleaning the filter element comprises the following steps:
s3: and closing the water pump and the water guide valve, and opening the water drainage control valve for a second preset time.
S4: and opening the backwashing valve to allow backwashing water in the backwashing tank to enter the filter element through the backwashing pipeline, and backwashing the filter element by the backwashing water conveyed by the backwashing pipeline, wherein the backwashing time is a third preset time.
In one embodiment, before the step S3, the method further includes step S2: closing the drainage control valve and the backwashing valve, opening the water pump and the water guide valve, enabling the water filtered by the filter element to sequentially flow through the water pump and the pressure stabilizing device and finally to be stored in the backwashing tank, adjusting the water pressure range in the backwashing tank to be 0.1-0.8 Mpa by the pressure stabilizing device, and operating the water pump for a fourth preset time; the steps S2-S4 are executed in a loop.
In one embodiment, in step S2, the pressure regulator regulates the water pressure in the backwash tank to be 0.25 Mpa.
In one embodiment, the step S4 further includes: the water introduced from the water inlet end of the filter element positively washes the filter element.
In one embodiment, the filter element is standby after accumulating the water production for a first preset time, and the filter element is cleaned after the water purifier is standby for a fifth preset time.
According to the filter element cleaning assembly, the water purifier and the filter element cleaning method, the filter element cleaning assembly can effectively clean the filter element of the water purifier, so that pollutants intercepted on the surface of the filter element can be timely removed, the service life of the filter element is prolonged, the service performance of the water purifier is ensured, and the user experience is improved. Meanwhile, the pressure stabilizing device can effectively realize the regulation of water pressure in the backwashing tank and rapidly reach the design pressure, so that the filter element cleaning assembly can effectively and rapidly clean the filter element. The filter element cleaning component can also be used as an independent component to be combined with various water purifiers without the function of automatically cleaning the filter element, so that the application range of the self-feeding cleaning component is enlarged.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural view of a filter element cleaning assembly according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a water purifier according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a water purifier according to another embodiment of the present invention;
fig. 4 is a flowchart of a method for cleaning a filter element according to an embodiment of the present invention.
Wherein: 10-a water purifier; 100-a filter element cleaning component, 110-a backwashing tank, 120-a water storage pipeline, 130-a pressure stabilizing device, 140-a backwashing pipeline, 150-a backwashing valve, 151-a backwashing switch and 152-a backwashing check valve; 200-filter element, 300-water pump, 400-water discharge pipeline, 500-water discharge control valve, 600-water guide pipeline, 700-water guide valve, and 800-fine filtering and post-processing component.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. The following description of the embodiments is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. In contrast, when an element is referred to as being "directly connected" to another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
In the description of the present invention, it is to be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner and are not to be construed as limiting the present invention.
As shown in fig. 1 and 2, an embodiment of the invention provides a filter element cleaning assembly 100, which includes a backwash tank 110, a water storage pipeline 120, a pressure stabilizer 130, a backwash pipeline 140 and a backwash valve 150. The backwash tank 110 can store a certain amount of backwash water. The water storage pipeline 120 has a water storage inlet and a water storage outlet, the water storage outlet is communicated with the backwash tank 110, and the water storage inlet is used for being communicated with the water outlet end of the water pump 300. The pressure stabilizer 130 is connected in series to the water storage line 120, and is used to adjust the pressure of water flowing through the pressure stabilizer 130 within a certain range. The backwash pipeline 140 has a backwash water inlet and a backwash water outlet, the backwash water inlet is communicated with the backwash tank 110, the backwash water outlet is used for communicating with the filter element 200, and the backwash pipeline 140 can convey backwash water in the backwash tank 110 to the filter element 200. The backwash valve 150 is connected in series with the backwash line 140, and the backwash valve 150 is used to control the flow of backwash water in the backwash line 140. It will be appreciated that the backwash tank 110 may also be a pressure tank with a pressure-stabilizing function, which may reduce the use of the pressure-stabilizing device 130.
Above-mentioned filter core washs subassembly 100, filter core washs subassembly 100 and can realize effectively wasing purifier 10 filter core 200, and then in time gets rid of the pollutant of filter core 200 surface interception to extension filter core 200 life guarantees purifier 10 performance, improves user experience. Meanwhile, the pressure stabilizer 130 can effectively adjust the water pressure in the backwash tank 110 to quickly reach the design pressure, so that the filter element cleaning assembly 100 can effectively and quickly clean the filter element 200. The filter element cleaning assembly 100 can also be used as an independent assembly to be combined with a plurality of water purifiers 10 without the function of automatically cleaning the filter element 200, so that the application range of the self-feeding cleaning assembly is widened.
The pressure stabilizer 130, which is an item not available in the cartridge cleaning assembly 100, can control the pressure of water entering the backwash tank 110 through the water storage line 120. It can be understood that, when the water pressure in the water storage pipeline 120 is higher than the water pressure set by the pressure stabilizer 130, the pressure stabilizer 130 can reduce the water pressure in the water storage pipeline 120 to a set value and then deliver the water to the backwash tank 110; or when the water pressure in the water storage pipeline 120 is lower than the water pressure set by the pressure stabilizer 130, the pressure stabilizer 130 can boost the water pressure in the water storage pipeline 120 to a set value and then deliver the water pressure to the backwash tank 110. In an embodiment of the present invention, the pressure stabilizer 130 includes a pressure reducing valve or a pressure stabilizing valve, and the pressure stabilizing value of the pressure stabilizer 130 is adjustable or fixed. The pressure stabilizer 130 in the form of a pressure reducing valve or a pressure reducing valve has the advantages of simple structure and stable performance. Under simple working conditions, the pressure stabilizer 130 has a fixed pressure stabilization value so as to meet the use requirements of the filter element cleaning assembly 100; under complex working conditions, the pressure stabilizer 130 with adjustable pressure stabilization value can meet the use requirements of the filter element cleaning assembly 100; the voltage stabilizing value of the voltage stabilizer 130 can be adjusted or fixed according to the specific use requirement of the actual working condition.
As an implementation manner, the pressure stabilizing value of the pressure stabilizing device 130 is adjustable, and the pressure stabilizing device 130 adjusts the pressure of the water flowing through the pressure stabilizing device 130 to be within a first preset pressure range, for example, the first preset pressure range is between 0Mpa and 0.8 Mpa. The water pressure of 0Mpa to 0.8Mpa enables cleaning of most of the filter elements 200. As another way to realize this, the pressure stabilizing value of the pressure stabilizing device 130 is fixed, and the pressure stabilizing device 130 regulates the water pressure flowing through the pressure stabilizing device 130 to be any value within the first preset pressure range, such as 0.1Mpa, 0.25Mpa, 0.5Mpa, or other reasonable values. It is understood that, in the above embodiment, the regulated voltage value of the voltage regulation device 130 with adjustable regulated voltage value may be adjusted to be 0.25 Mpa. The backwash valve 150 can control the on/off and flow direction of the backwash water in the backwash line 140. Alternatively, the backwash valve 150 may be a complex valve having an opening and closing function and a function of controlling the flow direction of backwash water, or the backwash valve 150 may include a plurality of simple valves each having the above-described function. In one embodiment of the present invention, as shown in fig. 1 and 2, the backwash valve 150 includes a backwash switch 151 and a backwash check valve 152, and the backwash switch 151 and the backwash check valve 152 are respectively connected in series to the backwash pipe 140. Further, along the flowing direction of the backwash water, the backwash switch 151 is disposed at the upstream of the backwash check valve 152, or the backwash switch 151 is disposed at the downstream of the backwash check valve 152, as long as the function of controlling the on/off of the backwash pipeline 140 and the flow direction of the backwash water by the backwash valve 150 is satisfied.
The amount of water required for a single backwash is different for different sizes and configurations of filter elements 200. In one embodiment of the invention, the backwash tank 110 has a volume of 5 liters or less, and a 5 liter volume backwash tank 110 can meet the single backwash water demand of most filter elements 200. In other embodiments of the present invention, the volume of the backwash tank 110 is greater than 5 liters, such as 8 liters, 10 liters, 15 liters, etc., and the volume of the backwash tank 110 can be designed according to the water demand for backwashing of the filter element 200. As another implementation manner, the filter element cleaning assembly 100 includes a plurality of backwash tanks 110, the plurality of backwash tanks 110 are respectively communicated with the water storage outlet and the backwash water inlet, and the plurality of backwash tanks 110 are connected in series or in parallel. The plurality of backwash tanks 110 connected in series or in parallel can simultaneously supply backwash water for a single backwashing of the filter cartridge 200 together to ensure that the filter cartridge 200 can be effectively cleaned during the backwashing of the filter cartridge 200. In one particular embodiment of the present invention, the cartridge cleaning assembly 100 includes 2-10 backwash tanks 110, with 2-10 backwash tanks 110 in parallel communication. Further, the backwash tank 110 may be spherical, cylindrical, square or irregular shaped, such as a diamond or other irregular shape of the backwash tank 110. It will be appreciated that the backwash tank 110 is preferably configured to be stably and independently mounted or stably mounted within the water purifier 10.
An embodiment of the present invention further provides a water purifier 10, as shown in fig. 2 and 3, including a filter element 200, a water pump 300, and the filter element cleaning assembly 100 according to any one of the above aspects. The water pump 300 is provided with a water inlet end and a water outlet end, the filter element 200 is provided with a water inlet end and a pure water outlet end, the water inlet end of the filter element 200 is communicated with a water source, the pure water outlet end of the filter element 200 is communicated with the water inlet end of the water pump 300, the water outlet end of the water pump 300 is communicated with the water storage inlet of the water storage pipeline 120, the backwashing water outlet of the backwashing pipeline 140 is communicated with the pure water outlet end of the filter element 200, and the backwashing pipeline 140 can convey backwashing water to reversely enter the filter element 200. Above-mentioned purifier 10 including filter core washing assembly 100, filter core washing assembly 100 can realize the effective washing to purifier 10 filter core 200, and then in time gets rid of the pollutant of filter core 200 surface interception to extension filter core 200 life guarantees purifier 10 performance, improves user experience. Meanwhile, the pressure stabilizer 130 can effectively adjust the water pressure in the backwash tank 110 to quickly reach the design pressure, so that the filter element cleaning assembly 100 can effectively and quickly clean the filter element 200. The filter element cleaning assembly 100 can also be used as an independent assembly to be combined with a plurality of water purifiers 10 without the function of automatically cleaning the filter element 200, so that the application range of the self-feeding cleaning assembly is widened.
In an embodiment of the present invention, the water purifier 10 can smoothly discharge the backwashing water after washing the filter element 200. Specifically, as shown in fig. 2 and 3, the water purifier 10 further includes a drain line 400 and a drain control valve 500, the drain line 400 is communicated with the filter element 200, the drain line 400 is used for draining the backwashing water after washing the filter element 200, and the drain control valve 500 is used for controlling on/off of the drain line 400. The water purifier 10 can deliver backwash water of a set pressure into the backwash tank 110 of the self-feeding cleaning unit through the water pump 300 and the pressure stabilizer 130 in the process of producing water through the filter element 200. When the filter element 200 in the water purifier 10 needs to be washed, the backwash tank 110 reaches the filter element 200 through the backwash pipeline 140 to wash the filter element 200, so as to effectively wash away various impurities attached to the filter element 200. The backwash water after washing the filter cartridge 200 is discharged through the drain line 400 opened by the drain control valve 500. Alternatively, the water pump 300 may be a pressure stabilizing pump, a booster pump, a vane pump, a self-priming pump, or the like with a forward or reverse flow direction or with adjustable frequency. The filter element 200 is one or more of filter elements 200 such as PP cotton, activated carbon, PAC, ultrafiltration membrane, microfiltration membrane, etc. Each valve type in the above embodiments includes a solenoid valve or an electric valve.
In an embodiment of the present invention, as shown in fig. 2 and fig. 3, the water purifier 10 further includes a water guiding pipeline 600 and a water guiding valve 700, the water guiding pipeline 600 is communicated with the water outlet end of the water pump 300 or the purified water outlet end of the filter element 200, the water guiding valve 700 is connected in series to the water guiding pipeline 600, and the water guiding valve 700 is used for controlling the on-off of the water guiding pipeline 600. The water conduit 600 delivers water that passes through the water pump 300 to a user for use, or the water conduit 600 delivers water that passes through the filter cartridge 200 to a subsequent water treatment assembly. The filtered water pressurized by the water pump 300 has high water pressure, and is convenient to directly deliver to a user for use, and meanwhile, the water flowing through the filter element 200 is delivered to a subsequent water treatment assembly by the water guide pipeline 600, so that the filtered water subjected to subsequent treatment can meet higher use requirements, and meanwhile, the filtered water still keeps high water pressure. Further, the water purifier 10 further includes a fine filtering and post-processing assembly 800, the fine filtering and post-processing assembly 800 is communicated with the water conduit 600, and the water conduit 600 conveys the water flowing through the filter element 200 to the fine filtering and post-processing assembly 800, and then the water is supplied to the user for drinking. Optionally, the fine filtration and aftertreatment assembly 800 includes a pass-through filter membrane and an aftertreatment cartridge 200. The fine filtration membrane comprises one or more of RO membrane, nanofiltration membrane, ultrafiltration membrane and microfiltration membrane filter core. The post-treatment filter element 200 comprises one or more of activated carbon, ultrafiltration membrane and carbon composite filter elements and microfiltration membrane and carbon composite filter elements.
The water purifier 10 in each of the above embodiments can respectively satisfy the water production requirement of the user and the automatic cleaning requirement of the filter element 200 in the water purifier 10. An embodiment of the present invention further provides a method for cleaning a filter element 200, as shown in fig. 4, when the filter element 200 accumulates water for a first preset time, the method for cleaning the filter element 200 applied to the water purifier 10 in the above embodiments includes: s3: closing the water pump 300 and the water guide valve 700, and opening the drain control valve 500 for a second preset time; s4: opening the backwashing valve 150 to allow the backwashing water in the backwashing tank 110 to enter the filter element 200 through the backwashing pipeline 140, backwashing the filter element 200 by the backwashing water conveyed by the backwashing pipeline 140, wherein the backwashing time is a third preset time, and meanwhile, the water introduced from the water inlet end of the filter element 200 flushes the filter element 200 in the forward direction; s5: the drain control valve 500 and the backwash valve 150 are closed, the water pump 300 and the water guide valve 700 are opened, and the water purifier 10 performs normal water production. Optionally, the first preset time is between 0 and 24 hours, the second preset time is between 0 and 10 seconds, and the third preset time is between 0 and 30 seconds. As an implementation manner, when the second preset time is 0, it means that the drain control valve 500 does not need to be opened in advance before the backwash valve 150 is opened, and the backwash valve 150 is opened immediately after the drain control valve 500 is opened. Alternatively, the second predetermined time is greater than 0, which means that the drain control valve 500 is opened a predetermined time before the backwash valve 150 is opened. Or the first preset time, the second preset time and the third preset time may be within other reasonable ranges.
It will be appreciated that a certain amount of backwash water is already stored in the backwash tank 110 before the backwash tank 110 provides backwash water into the backwash line 140. As one way to realize, as shown in fig. 4, before step S3, S2 is further included: closing the water discharge control valve 500 and the backwashing valve 150, opening the water pump 300 and the water guide valve 700, allowing the water filtered by the filter element 200 to sequentially flow through the water pump 300 and the pressure stabilizer 130 and finally to be stored in the backwashing tank 110, adjusting the water pressure range in the backwashing tank 110 to be 0.1-0.8 Mpa by the pressure stabilizer 130, and operating the water pump 300 for the fourth operation time. The above-described step S2 enables a sufficient amount of backwash water to be filled into the backwash tank 110. Further, step S6 is further included after step S5 or step S4: the steps S2-S5 are executed circularly or the steps S2-S4 are executed circularly. When the steps S2-S5 are executed in a circulating manner, the water purifier 10 will "go through the circulation of water production (while the backwash tank 110 is pressurized), -filter element 200 cleaning, -water production again (while the backwash tank 110 is pressurized for the second time), -filter element 200 cleaning again", which can effectively ensure the effective operation of the water purifier 10 as a whole. Further, in step S2, the pressure stabilizer 130 adjusts the water pressure in the backwash tank 110 to be stabilized at 0.25 MPa. Furthermore, the filter element 200 is standby after accumulating the water for 0 to 24 hours, and after the water purifier 10 is standby for a fifth preset time, the water pump 300 and the water guide valve 700 are closed, the water discharge control valve 500 is opened, and the filter element 200 is cleaned. Step S3 can effectively remove impurities that enter the water purifier 10 from the external environment and attach to the filter element 200 in the standby state of the water purifier 10, thereby improving the timeliness and necessity of cleaning the filter element 200 of the water purifier 10.
According to the method for cleaning the filter element 200, the filter element cleaning assembly 100 in the water purifier 10 can effectively clean the filter element 200 of the water purifier 10, so that pollutants intercepted on the surface of the filter element 200 can be removed in time, the service life of the filter element 200 is prolonged, the service performance of the water purifier 10 is ensured, and the user experience is improved. Meanwhile, the pressure stabilizer 130 can effectively adjust the water pressure in the backwash tank 110 to quickly reach the design pressure, so that the filter element cleaning assembly 100 can effectively and quickly clean the filter element 200. The filter element cleaning assembly 100 can also be used as an independent assembly to be combined with a plurality of water purifiers 10 without the function of automatically cleaning the filter element 200, so that the application range of the self-feeding cleaning assembly is widened. Optionally, the fourth preset time is between 0 and 5min, and the fifth preset time is between 0 and 72 h. Or the fourth preset time and the fifth preset time may be within other reasonable ranges.
The following description will explain the cartridge cleaning assembly 100, the water purifier 10 and the detailed cartridge 200 cleaning method according to the present invention by using specific embodiments.
Specific example 1:
as shown in fig. 2, during normal water production, the backwash valve 150 and the drain control valve 500 are closed, the water guide valve 700 is opened, and the tap water passes through the filter element 200, the water pump 300 and the water guide valve 700 to obtain purified water. When making water, the purified water filtered by the filter element 200 is stored in the backwashing tank 110 after passing through the water pump 300 and the pressure stabilizing device 130, the pressure of the backwashing tank 110 is increased through the pressurization of the water pump 300, and the pressure of the backwashing tank 110 is controlled by adjusting the pressure stabilizing device 130, so that the backwashing effect in the backwashing process is ensured. The regulation range of the voltage stabilizer 130 is set to 0.1Mpa-0.8Mpa, for example, 0.25Mpa when in use. In the automatic cleaning, the water pump 300 and the water guide valve 700 are closed, and the backwash valve 150 and the drain control valve 500 are opened. At this time, the backwash tank 110 provides a washing power, the filter element 200 is reversely washed by the purified water of the backwash tank 110 through the backwash switch 151 and the backwash check valve 152, so that the pollutants on the surface of the filter element 200 are loosened or fall off, and the tap water provides a forward scouring force to further scour the pollutants on the surface of the filter element 200 and drain the pollutants from the drain control valve 500, so that the service life of the filter element 200 is prolonged.
Specific example 2:
as shown in fig. 3, the fine filtering and post-processing assembly 800 added on the basis of embodiment 1 can be a fine filtering system such as a reverse osmosis membrane, a nanofiltration membrane, an ultrafiltration membrane, and is applied to a water purifier 10, a water purifier, an engineering machine, a campus machine, a nanofiltration machine, and an ultrafiltration machine, so as to greatly improve the service life of the water purification product. The operation of the water purifier 10 is the same as that of embodiment 1.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (16)
1. A filter cartridge cleaning assembly, comprising:
a backwash tank capable of storing a certain amount of backwash water;
the water storage pipeline is provided with a water storage inlet and a water storage outlet, the water storage outlet is communicated with the backwashing tank, and the water storage inlet is communicated with a water outlet end of the water pump;
the pressure stabilizing device is connected in series with the water storage pipeline and is used for adjusting the water pressure flowing through the pressure stabilizing device within a certain range;
the backwashing pipeline is provided with a backwashing water inlet and a backwashing water outlet, the backwashing water inlet is communicated with the backwashing tank, the backwashing water outlet is used for being communicated with the filter element, and the backwashing pipeline can convey backwashing water in the backwashing tank to the filter element;
and the backwashing valve is connected in series with the backwashing pipeline and is used for controlling the flow of backwashing water in the backwashing pipeline.
2. A filter cartridge cleaning assembly as recited in claim 1, wherein the pressure regulator comprises a pressure relief valve or a pressure maintaining valve, the pressure maintaining value of the pressure regulator being adjustable or fixed.
3. The cartridge cleaning assembly of claim 2, wherein the pressure regulator is adjustable to regulate the pressure of water flowing through the pressure regulator within a first predetermined pressure range.
4. The cartridge cleaning assembly as recited in claim 2, wherein the pressure stabilizer is fixed at a pressure value that regulates the amount of water pressure flowing through the pressure stabilizer to be any value within a first predetermined pressure range.
5. The filter element cleaning assembly according to any one of claims 1-4, wherein the backwash valve comprises a backwash switch and a backwash check valve, and the backwash switch and the backwash check valve are respectively connected in series with the backwash pipeline.
6. A filter cartridge cleaning assembly as claimed in any one of claims 1 to 4, wherein the backwash tank is spherical, cylindrical, square or profiled and has a volume of 5 litres or less.
7. The filter element cleaning assembly according to claim 6, comprising a plurality of backwash tanks, the plurality of backwash tanks being in communication with the water storage outlet and the backwash water inlet, respectively, the plurality of backwash tanks being connected in series or in parallel.
8. A water purification machine comprising a filter element, a water pump and a filter element cleaning assembly according to any one of claims 1 to 7; the water pump is provided with a water inlet end and a water outlet end, the filter element is provided with a water inlet end and a purified water outlet end, the water inlet end of the filter element is communicated with a water source, the purified water outlet end of the filter element is communicated with the water inlet end of the water pump, the water outlet end of the water pump is communicated with the water storage inlet of the water storage pipeline, the backwashing water outlet of the backwashing pipeline is communicated with the purified water outlet end of the filter element, and the backwashing pipeline can convey backwashing water to enter the filter element in the reverse direction.
9. The water purifier according to claim 8, further comprising a water discharge pipeline and a water discharge control valve, wherein the water discharge pipeline is communicated with the filter element, the water discharge pipeline is used for discharging backwash water after the filter element is washed, and the water discharge control valve is used for controlling on-off of the water discharge pipeline.
10. The water purifier according to any one of claims 8-9, further comprising a water conduit and a water guide valve, wherein the water conduit is communicated with a water outlet of the water pump or a purified water outlet of the filter element, the water guide valve is connected in series to the water conduit, and the water guide valve is used for controlling the on-off of the water conduit; the water guide pipeline conveys water flowing through the water pump to a user for use, or the water guide pipeline conveys water flowing through the filter element to a subsequent water treatment assembly.
11. The water purifier of claim 10, further comprising a fine filtration and post-treatment assembly in communication with the water conduit, the water conduit delivering water flowing through the filter element to the fine filtration and post-treatment assembly.
12. A method for cleaning a filter element, which is applied to the water purifier as claimed in any one of claims 10-11, and comprises the steps of, after the filter element accumulates water for a first preset time, cleaning the filter element:
s3: closing the water pump and the water guide valve, and opening the drainage control valve for a second preset time;
s4: and opening the backwashing valve to allow backwashing water in the backwashing tank to enter the filter element through the backwashing pipeline, and backwashing the filter element by the backwashing water conveyed by the backwashing pipeline, wherein the backwashing time is a third preset time.
13. The filter cartridge cleaning method according to claim 12, further comprising, before the step S3, S2: closing the drainage control valve and the backwashing valve, opening the water pump and the water guide valve, enabling the water filtered by the filter element to sequentially flow through the water pump and the pressure stabilizing device and finally to be stored in the backwashing tank, adjusting the water pressure in the backwashing tank to be 0.1-0.8 Mpa by the pressure stabilizing device, and operating the water pump for a fourth preset time; the steps S2-S4 are executed in a loop.
14. The filter element cleaning method according to claim 13, wherein in the step S2, the pressure stabilizer adjusts the water pressure in the backwash tank to be stabilized at 0.25 Mpa.
15. The filter cartridge cleaning method according to claim 12, wherein said step S4 further comprises: the water introduced from the water inlet end of the filter element positively washes the filter element.
16. The method for cleaning a filter element according to any one of claims 12 to 15, wherein the filter element is kept on standby after accumulating water for a first preset time, and the water purifier is kept on standby for a fifth preset time to clean the filter element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911102000.1A CN110694336B (en) | 2019-11-12 | 2019-11-12 | Filter element cleaning assembly, water purifier and filter element cleaning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911102000.1A CN110694336B (en) | 2019-11-12 | 2019-11-12 | Filter element cleaning assembly, water purifier and filter element cleaning method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110694336A true CN110694336A (en) | 2020-01-17 |
| CN110694336B CN110694336B (en) | 2023-09-05 |
Family
ID=69204978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911102000.1A Active CN110694336B (en) | 2019-11-12 | 2019-11-12 | Filter element cleaning assembly, water purifier and filter element cleaning method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110694336B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111617539A (en) * | 2020-06-07 | 2020-09-04 | 倪琳 | Pipeline filtration water treatment reverse-flow type self-cleaning system |
| CN112316556A (en) * | 2020-10-28 | 2021-02-05 | 飞潮（无锡）过滤技术有限公司 | Modular small intelligent continuous flow purification device and method |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5670038A (en) * | 1995-09-06 | 1997-09-23 | Mckinney; Jerry L. | Liquid filter system |
| CN1281825A (en) * | 1999-07-26 | 2001-01-31 | 陈润明 | Pressure type membrane filtering drainage biochemical reactor |
| CN201037121Y (en) * | 2007-04-04 | 2008-03-19 | 深圳市英尼克电器有限公司 | Long-acting type water purifier |
| KR20110112913A (en) * | 2010-04-08 | 2011-10-14 | (주) 코리아 인바이텍 | Filtration system using backwash-pressure fluctuations |
| US20140251905A1 (en) * | 2013-03-07 | 2014-09-11 | Tedd Michael Schneidewend | Point of Use Filtration System with Backwash |
| CN204193794U (en) * | 2014-10-14 | 2015-03-11 | 厦门绿创科技有限公司 | A kind of milipore filter water purification assembly with water jet device flusher |
| CN204310876U (en) * | 2014-11-10 | 2015-05-06 | 珠海格力电器股份有限公司 | A kind of reverse osmosis system and water-purifying machine |
| CN105621712A (en) * | 2014-10-31 | 2016-06-01 | 道易（青岛）净水设备制造有限公司 | Sterilization flow-control Internet of Things backwash osmotic water purification machine with real-time monitoring function |
| CN105621644A (en) * | 2014-10-27 | 2016-06-01 | 珠海格力电器股份有限公司 | Water purification system and cleaning method thereof |
| CN105645615A (en) * | 2014-12-05 | 2016-06-08 | 蒋志远 | Water-purification backwashing-type three-water-quality reverse-osmosis water purifier can be washed with chemicals and gas |
| CN106693709A (en) * | 2017-02-10 | 2017-05-24 | 珠海格力电器股份有限公司 | Water purification system and control method thereof and water purifier |
| CN107265570A (en) * | 2017-08-15 | 2017-10-20 | 吴腾飞 | A kind of automatic back-washing water purifier |
| CN107376480A (en) * | 2017-08-29 | 2017-11-24 | 中冶京诚工程技术有限公司 | Filter element filtering device for dense salt waste water |
| CN108975543A (en) * | 2018-08-24 | 2018-12-11 | 珠海格力电器股份有限公司 | Water purification system and water purifier |
| CN109991375A (en) * | 2019-04-17 | 2019-07-09 | 中国科学院植物研究所 | A kind of the automatic assay device and its application method of xylophyta hydraulic structure |
| CN211189353U (en) * | 2019-11-12 | 2020-08-07 | 珠海格力电器股份有限公司 | Filter element cleaning assembly and water purifier |
-
2019
- 2019-11-12 CN CN201911102000.1A patent/CN110694336B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5670038A (en) * | 1995-09-06 | 1997-09-23 | Mckinney; Jerry L. | Liquid filter system |
| CN1281825A (en) * | 1999-07-26 | 2001-01-31 | 陈润明 | Pressure type membrane filtering drainage biochemical reactor |
| CN201037121Y (en) * | 2007-04-04 | 2008-03-19 | 深圳市英尼克电器有限公司 | Long-acting type water purifier |
| KR20110112913A (en) * | 2010-04-08 | 2011-10-14 | (주) 코리아 인바이텍 | Filtration system using backwash-pressure fluctuations |
| US20140251905A1 (en) * | 2013-03-07 | 2014-09-11 | Tedd Michael Schneidewend | Point of Use Filtration System with Backwash |
| CN204193794U (en) * | 2014-10-14 | 2015-03-11 | 厦门绿创科技有限公司 | A kind of milipore filter water purification assembly with water jet device flusher |
| CN105621644A (en) * | 2014-10-27 | 2016-06-01 | 珠海格力电器股份有限公司 | Water purification system and cleaning method thereof |
| CN105621712A (en) * | 2014-10-31 | 2016-06-01 | 道易（青岛）净水设备制造有限公司 | Sterilization flow-control Internet of Things backwash osmotic water purification machine with real-time monitoring function |
| CN204310876U (en) * | 2014-11-10 | 2015-05-06 | 珠海格力电器股份有限公司 | A kind of reverse osmosis system and water-purifying machine |
| CN105645615A (en) * | 2014-12-05 | 2016-06-08 | 蒋志远 | Water-purification backwashing-type three-water-quality reverse-osmosis water purifier can be washed with chemicals and gas |
| CN106693709A (en) * | 2017-02-10 | 2017-05-24 | 珠海格力电器股份有限公司 | Water purification system and control method thereof and water purifier |
| CN107265570A (en) * | 2017-08-15 | 2017-10-20 | 吴腾飞 | A kind of automatic back-washing water purifier |
| CN107376480A (en) * | 2017-08-29 | 2017-11-24 | 中冶京诚工程技术有限公司 | Filter element filtering device for dense salt waste water |
| CN108975543A (en) * | 2018-08-24 | 2018-12-11 | 珠海格力电器股份有限公司 | Water purification system and water purifier |
| CN109991375A (en) * | 2019-04-17 | 2019-07-09 | 中国科学院植物研究所 | A kind of the automatic assay device and its application method of xylophyta hydraulic structure |
| CN211189353U (en) * | 2019-11-12 | 2020-08-07 | 珠海格力电器股份有限公司 | Filter element cleaning assembly and water purifier |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111617539A (en) * | 2020-06-07 | 2020-09-04 | 倪琳 | Pipeline filtration water treatment reverse-flow type self-cleaning system |
| CN111617539B (en) * | 2020-06-07 | 2021-09-03 | 南京依柯卡特排放技术股份有限公司 | Pipeline filtration water treatment reverse-flow type self-cleaning system |
| CN112316556A (en) * | 2020-10-28 | 2021-02-05 | 飞潮（无锡）过滤技术有限公司 | Modular small intelligent continuous flow purification device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110694336B (en) | 2023-09-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2005282211B2 (en) | Reduction of backwash liquid waste | |
| KR101354403B1 (en) | Filtering method, and membrane-filtering apparatus | |
| CN111185101A (en) | Water purification unit with filter element group spare | |
| CN205295018U (en) | Portable degree of depth water processing system | |
| CN110694336A (en) | Filter element cleaning assembly, water purifier and filter element cleaning method | |
| US9550152B2 (en) | Point of use filtration system with backwash | |
| CN211189353U (en) | Filter element cleaning assembly and water purifier | |
| CN110902764A (en) | Circulating pump cross flow anti-fouling process for ultrafiltration treatment of high-turbidity wastewater | |
| CN105036391B (en) | Purifier | |
| CN109095559B (en) | Water purification system | |
| JP2014008439A (en) | Membrane separation type water treatment apparatus and method for cleaning water treatment separation membrane | |
| RU2761282C1 (en) | Device and method for preparing drinking water | |
| CN115676974A (en) | Direct drinking water purification system and forward and reverse flushing method of ultrafiltration membrane group of direct drinking water purification system | |
| CN211470971U (en) | Intelligent water purification system | |
| CN211338902U (en) | Filter core, filter core cleaning system and purifier | |
| CN211226407U (en) | Pressure stabilizing barrel and water purifier | |
| CN211328447U (en) | Water purifier water purification system | |
| CN211328448U (en) | Water purifier water purification system | |
| CN211546027U (en) | Pure water bubble membrane system based on pure water tank | |
| CN211521854U (en) | Water purifying device | |
| CN210117291U (en) | Large flux water purifier | |
| CN210286987U (en) | Ultra-filtration water purifying device capable of automatically backwashing | |
| JP2021159894A (en) | Water purification system | |
| CN110697846A (en) | Filter core, filter core cleaning system and purifier | |
| CN110776120A (en) | Filter element cleaning system, filter element cleaning method and water purifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |