CN213446376U - Double-filter-element device with alternate flushing function and water purifier - Google Patents
Double-filter-element device with alternate flushing function and water purifier Download PDFInfo
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- CN213446376U CN213446376U CN202021790060.5U CN202021790060U CN213446376U CN 213446376 U CN213446376 U CN 213446376U CN 202021790060 U CN202021790060 U CN 202021790060U CN 213446376 U CN213446376 U CN 213446376U
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Abstract
The utility model provides a two filter core devices and purifier with alternate washing function, is provided with first filter core, second filter core and rivers passageway, and the dense water of first filter core goes out the water end and the dense water of second filter core goes out the water end and is connected with rivers passageway respectively, and the water inlet end of first filter core and the water inlet end of second filter core are parallelly connected, and the product water of first filter core goes out the water end and the product water of second filter core goes out the water end and parallelly connected. This two filter core devices and purifier with alternate washing function can only change this inefficacy filter core when one of them filter core became invalid, and need not to change the filter core that does not become invalid to greatly reduced replacement cost. The utility model discloses when the operating mode, during one of them filter core system water, the dense water of production washes another filter core to improve the life-span of filter core. And when the working condition is washed, the two filter elements can be alternately washed forwards, so that the service life is prolonged. The utility model discloses the pure water that produces can be deposited in the storage water tank, therefore first filter core and second filter core can use the less filter core of water yield.
Description
Technical Field
The utility model relates to a filter core technical field, in particular to two filter core devices and purifier that has the device with wash function in turn.
Background
Nowadays, more and more developed industry brings convenience to people in life and also brings negative effects to the environment, such as pollution of water resources, so that tap water can be drunk after being filtered by a water purifier. And the water purifier of the prior art can not wash the filter element when producing water, and the service life of the filter element is limited.
In the water purification equipment in the prior art, when the filter element is polluted or the service life of the filter element reaches the end, the whole filter element of the water purifier needs to be replaced, and the replacement cost of the filter element is high. The large-flux water purifier with the volume of more than 100G sold in the market at present still adopts a single filter element as the water purifier with the volume of 50G. Generally, the higher the flux of the water purifier is, the higher the filter element replacement cost is, and therefore, the filter element replacement cost of the high-flux water purifier is higher.
Therefore, it is necessary to provide a dual-filter element device with alternate flushing function and a water purifier having the same to solve the deficiencies of the prior art.
SUMMERY OF THE UTILITY MODEL
One of the purposes of the utility model is to avoid the disadvantages of the prior art and provide a double-filter element device with alternate flushing function. This two filter core devices with wash function in turn can reduce the filter core replacement cost, can also wash another filter core through dense water when one of them filter core operation simultaneously.
The above object of the present invention is achieved by the following technical measures:
the utility model provides a two filter core devices with wash function in turn is provided with first filter core, second filter core and rivers passageway, and the dense water of first filter core goes out the water end and goes out the water end through rivers passageway connection with the dense water of second filter core, and the end of intaking of first filter core and the end of intaking of second filter core are parallelly connected, and the water of producing of first filter core goes out the water end and the water end of producing of second filter core and goes out parallelly connected.
Under the operation condition:
raw water enters a first filter element and is treated by the first filter element to obtain concentrated water A1And pure water A1Pure water A1Directly discharged from the water outlet end of the produced water of the first filter element; concentrated water A1The concentrated water enters the water flow channel through the concentrated water outlet end of the first filter element, enters the second filter element through the concentrated water outlet end of the second filter element after passing through the water flow channel, and is discharged from the water inlet end of the second filter element after being treated by the second filter element; or
Raw water enters a second filter element and is treated by the second filter element to obtain concentrated water A2And pure water A2Pure water A2Directly discharged from the water outlet end of the produced water of the second filter element; concentrated water A2The concentrated water enters the water flow channel through the concentrated water outlet end of the second filter element, enters the first filter element through the concentrated water outlet end of the first filter element after passing through the water flow channel, and is discharged from the water inlet end of the first filter element after being treated by the first filter element;
under the flushing condition:
raw water enters the first filter element, enters the second filter element through the water flow channel and is discharged from the water inlet end of the second filter element;
or
Raw water enters the second filter element, enters the first filter element through the water flow channel and is discharged from the water inlet end of the first filter element.
The double-filter-element device with the alternate flushing function of the utility model is also provided with a first valve body, a second valve body, a third valve body, a fourth valve body and a fifth valve body; the first valve body is respectively connected with the water inlet end of the first filter element and an external raw water pipeline, the second valve body is respectively connected with the water inlet end of the second filter element and the external raw water pipeline, the third valve body is respectively connected with the water outlet end of the produced water of the first filter element and the water outlet end of the produced water of the second filter element, the fourth valve body is respectively connected with the water inlet end of the first filter element and the water outlet of the double-filter-element device, and the fifth valve body is respectively connected with the water inlet end of the second filter element and the water outlet of the double-filter-element device.
Under the operation condition:
the first valve body, the third valve body and the fifth valve body are opened, and the second valve body and the fourth valve body are closed; or
The second valve body, the third valve body and the fourth valve body are opened, and the fifth valve body and the first valve body are closed;
under the flushing condition:
the first valve body and the fifth valve body are opened, and the second valve body, the third valve body and the fourth valve body are closed; or
The second valve body and the fourth valve body are opened, and the first valve body, the third valve body and the fifth valve body are closed.
The utility model discloses a two filter core devices with wash function in turn still is provided with and is used for carrying out the heating device that heats to the raw water when washing the operating mode, and the heating device assembles in rivers passageway.
The utility model discloses a two filter core devices with wash function in turn still is provided with the booster pump, and the booster pump is connected with first valve body and second valve body respectively.
The utility model discloses a two filter core devices with wash function in turn still is provided with the storage water tank that is used for depositing the pure water, third valve body and water tank connection.
The volume of the water storage tank is defined as V, and the V is more than or equal to 3L and less than or equal to 20L.
The flux of the first filter element filtering membrane is not equal to the flux of the second filter element filtering membrane; or
The flux of the first cartridge filter membrane is equal to the flux of the second cartridge filter membrane.
The effective filtering area of the first filter element filtering membrane is not equal to that of the second filter element filtering membrane; or
The effective filtration area of the first filter element filtration membrane is equal to the effective filtration area of the second filter element filtration membrane.
Preferably, the first filter element is a reverse osmosis filter element, a nanofiltration filter element or an ultrafiltration filter element.
Preferably, the second filter element is a reverse osmosis filter element, a nanofiltration filter element or an ultrafiltration filter element.
Another object of the present invention is to provide a water purifying machine which avoids the disadvantages of the prior art. This water purifier can reduce the replacement cost of filter core.
The above object of the present invention is achieved by the following technical measures:
the water purifier is provided with the double-filter-element device with the alternate flushing function.
The utility model discloses a two filter core devices and purifier with wash function in turn is provided with first filter core, second filter core and rivers passageway, and the dense water of first filter core goes out the water end and the dense water of second filter core goes out the water end and is connected with rivers passageway respectively, and the end of intaking of first filter core and the end of intaking of second filter core are parallelly connected, and the product water of first filter core goes out the water end and the product water of second filter core goes out the water end and parallelly connected. This two filter core devices and purifier with alternate washing function can only change this inefficacy filter core when one of them filter core became invalid, and need not to change the filter core that does not become invalid to greatly reduced replacement cost. Simultaneously the utility model discloses during the operating mode, during one of them filter core system water, the dense water that produces washes another filter core to improve the life-span of filter core. And the utility model discloses when washing the operating mode, two filter cores can carry out forward washing in turn, increase of service life. The utility model discloses the pure water that produces can be deposited in the storage water tank, therefore first filter core and second filter core can use the less filter core of water yield.
Drawings
The present invention will be further described with reference to the accompanying drawings, but the contents in the drawings do not constitute any limitation to the present invention.
Fig. 1 is a schematic view of a dual cartridge device with alternate flushing function of example 1.
Fig. 2 is a schematic view of the flow direction of a dual filter element device with alternate flushing function in the operating condition of the first filter element in the embodiment 1.
Fig. 3 is a schematic view of the flow direction of a dual filter element device with alternate flushing function in the second filter element operation condition in the embodiment 1.
Fig. 4 is a schematic view of the flow direction of the dual-filter element device with the alternate flushing function in the flushing operation mode to flush the second filter element in embodiment 1.
Fig. 5 is a schematic view of the flow direction of the dual-filter element device with the alternate flushing function in the flushing operation mode of the embodiment 1 for flushing the first filter element.
Fig. 6 is a schematic view of a dual cartridge device with alternate flushing function of example 2.
Fig. 7 is a schematic view of a dual cartridge device with alternate flushing function of example 3.
Fig. 8 is a schematic view of a first cartridge of embodiment 4.
In fig. 1 to 7, the following components are included:
the filter comprises a first filter element 100, a sub-filter element 110, a second filter element 200, a first valve body 300, a second valve body 400, a third valve body 500, a fourth valve body 600, a fifth valve body 700, a booster pump 800, a water storage tank 900, a water flow channel 1000 and a heating device 1100.
Detailed Description
The technical solution of the present invention will be further explained by the following examples.
Example 1.
A double-filter-element device with an alternate flushing function is provided with a first filter element 100, a second filter element 200 and a water flow channel 1000, wherein a concentrated water outlet end of the first filter element 100 is connected with a concentrated water outlet end of the second filter element 200 through the water flow channel 1000, a water inlet end of the first filter element 100 is connected with a water inlet end of the second filter element 200 in parallel, and a water production outlet end of the first filter element 100 is connected with a water production outlet end of the second filter element 200 in parallel, as shown in figure 1.
The water flow passage 1000 is used for introducing the concentrated water generated by the first filter element 100 or the second filter element 200 into the second filter element 200 or the first filter element 100, so as to achieve the concentrated water flushing effect.
The utility model discloses operating condition has two kinds of circumstances, specifically as follows:
the first and second filter elements 100 produce water. Raw water enters the first filter element 100 and is treated by the first filter element 100 to obtain concentrated water A1And pure water A1Pure water A1Directly discharged through the water outlet end of the produced water of the first filter element 100; concentrated water A1Enters the water flow channel 1000 through the concentrated water outlet end of the first filter element 100, passes through the water flow channel 1000 and then passes through the second filter elementThe concentrated water outlet end of the filter element 200 enters the second filter element 200, and is discharged from the water inlet end of the second filter element 200 after being treated by the second filter element 200, as shown in fig. 2.
The second filter element 200 produces water. Raw water enters the second filter element 200 and is treated by the second filter element 200 to obtain concentrated water A2And pure water A2Pure water A2Directly discharged through the water outlet end of the second filter element 200; concentrated water A2Enters the water flow channel 1000 through the concentrated water outlet end of the second filter element 200, enters the first filter element 100 through the concentrated water outlet end of the first filter element 100 after passing through the water flow channel, and is discharged from the water inlet end of the first filter element 100 after being treated by the first filter element 100, as shown in fig. 3.
It should be noted that, the utility model discloses a two filter cores can make water in turn, and when one of them filter core made water, the dense water that this filter core produced carries out forward through rivers passageway 1000 to another filter core and washes to improve the life-span of filter core.
The utility model discloses the working condition of washing has two kinds of circumstances, specifically as follows:
first, raw water enters the first filter element 100, enters the second filter element 200 through the water flow passage 1000, and is discharged from the water inlet end of the second filter element 200, as shown in fig. 4.
Secondly, raw water enters the second filter element 200, enters the first filter element 100 through the water flow channel 1000, and is discharged from the water inlet end of the first filter element 100, as shown in fig. 5.
Because the two filter elements are in different environments, the failure time of the two filter elements is different, only the failed filter element needs to be replaced, and the two filter elements do not need to be replaced simultaneously, so that the replacement cost is greatly reduced.
The double-filter-element device with the alternate flushing function of the utility model is also provided with a first valve body 300, a second valve body 400, a third valve body 500, a fourth valve body 600 and a fifth valve body 700; the first valve body 300 is connected with the water inlet end of the first filter element 100 and an external raw water pipeline respectively, the second valve body 400 is connected with the water inlet end of the second filter element 200 and the external raw water pipeline respectively, the third valve body 500 is connected with the water outlet end of the first filter element 100 and the water outlet end of the second filter element 200 respectively, the fourth valve body 600 is connected with the water inlet end of the first filter element 100 and the water outlet of the double-filter-element device respectively, and the fifth valve body 700 is connected with the water inlet end of the second filter element 200 and the water outlet of the double-filter-element device respectively.
Under the operation condition:
when the first filter cartridge 100 is operated, the first valve body 300, the third valve body 500, and the fifth valve body 700 are opened, and the second valve body 400 and the fourth valve body 600 are closed. When the second filter cartridge 200 is operated, the second valve body 400, the third valve body 500, and the fourth valve body 600 are opened, and the fifth valve body 700 and the first valve body 300 are closed.
Under the flushing condition:
when the second filter cartridge 200 is washed, the first valve body 300 and the fifth valve body 700 are opened, and the second valve body 400, the third valve body 500, and the fourth valve body 600 are closed. When the first filter cartridge 100 is flushed, the second valve body 400 and the fourth valve body 600 are opened, and the first valve body 300, the third valve body 500 and the fifth valve body 700 are closed.
In the drawings, the opened valve body is shown in solid black, and the closed valve body is shown in hollow.
The first filter cartridge 100 is provided with a first membrane, and the second filter cartridge 200 is provided with a second membrane, the first membrane being connected with the second membrane. At least one of a thickness of the first film or a thickness of the second film is less than or equal to 50 μm.
The thickness of the first film and the thickness of the second film of this example were both 45 μm. It should be noted that the thickness of the first film and the thickness of the second film of the present invention may be less than or equal to 50 μm, such as 45 μm in this embodiment, or only one of the thicknesses may be less than 50 μm, such as 40 μm, 50 μm, 30 μm, 20 μm, 10 μm, 5 μm, etc., and the specific implementation manner is determined according to the actual situation.
At least one of the substrate support layer of the first membrane or the substrate support layer of the second membrane of the present invention is a porous material layer formed in a non-phase inversion manner. Wherein the material of the porous material layer is polypropylene or polyethylene.
In this embodiment, the substrate support layer of the first membrane and the substrate support layer of the second membrane are both porous material layers formed in a non-phase inversion manner, and the material of the porous material layers is polypropylene. It should be noted that, the substrate support layer of the first membrane and the substrate support layer of the second membrane of the present invention may be porous material layers, or may only be the substrate support layer porous material layer of the second membrane, or the substrate support layer porous material layer of the first membrane, and the specific implementation manner is determined according to the actual situation.
For a base support layer of polyethylene or polypropylene, which is a material of the porous material layer, the thickness of the membrane can be reduced, so that a thin membrane sheet with a thickness of 50um or less can be made, and the thickness of a conventional membrane is generally 150 um. Because the membrane is thin, the filter element under the same volume can roll more membranes, and because the membranes are more, the pollution-resistant and blockage-resistant effects are good, and the porous material is low in cost, so that the filter element can be replaced frequently.
The utility model discloses a first filter core 100 is the reverse osmosis filter core, receives and strains filter core or ultrafiltration filter core, and second filter core 200 is the reverse osmosis filter core, receives and strains filter core or ultrafiltration filter core. Both the first cartridge 100 and the second cartridge 200 of this embodiment are reverse osmosis cartridges.
This two filter core devices with alternate washing function can only change this inefficacy filter core when one of them filter core became invalid, and need not to change the filter core that does not become invalid to greatly reduced replacement cost. Simultaneously the utility model discloses during the operating mode, during one of them filter core system water, the dense water that produces washes another filter core to improve the life-span of filter core. And the utility model discloses when washing the operating mode, two filter cores can carry out forward washing in turn, increase of service life. The utility model discloses a more diaphragm can be drawn into to diaphragm thickness is thin, consequently has resistant dirty and resistant stifled. Moreover, the membrane material of the utility model has low price, so the replacement cost is low.
Example 2.
A dual cartridge device with alternate flushing, as shown in fig. 6, has other features the same as those of embodiment 1, except that: the present embodiment is further provided with a booster pump 800, and the booster pump 800 is connected to the first valve body 300 and the second valve body 400, respectively.
The embodiment is further provided with a water storage tank 900, and a third valve is connected with the water storage tank 900.
The volume of the water storage tank 900 is defined as V, and the existing volume is more than or equal to 3L and less than or equal to 20L. The volume of the water storage tank 900 of the present embodiment is specifically 10L.
Because the double-filter-element device with the alternate flushing function of the embodiment is additionally provided with the water storage tank 900, when only a user does not use water, the double-filter-element device with the alternate flushing function can also make water and store pure water, and the water storage tank 900 can be discharged when the user uses water.
The booster pump 800 of the present embodiment can increase the flow rate of water to be treated, thereby increasing the filtering speed, compared to embodiment 1. The pure water produced in this embodiment can be stored in the water storage tank 900, so that the first filter cartridge 100 and the second filter cartridge 200 can use the filter cartridge with a smaller water production.
Example 3.
A dual cartridge device with alternate flushing function, as shown in fig. 7, and other features are the same as those of embodiment 1, except that: a heating device 1100 for heating the raw water in the flushing operation is further provided, and the heating device 1100 is assembled to the water flow passage 1000.
Compared with the embodiment 1, the embodiment heats the raw water during washing when the working condition is washed, so that the viscosity of the raw water is improved, the separation of impurities attached to the filter element is accelerated, and the washing effect is improved.
Example 4.
A dual cartridge device with alternate flushing, the other features being the same as in embodiment 1, except that: at least one of the first filter cartridge 100 or the second filter cartridge 200 is provided with a plurality of sub-filter cartridges 110, and the plurality of sub-filter cartridges 110 are connected in parallel.
The utility model discloses a plurality of sub-filter core 110 parallel connection indicates, when the operating mode, pending rivers fall into stranded rivers and correspond and get into a plurality of sub-filter core 110, respectively through a plurality of sub-filter core 110 processing backs, finally obtain dense water from the dense water outlet end of filter core unit, the product water that obtains is discharged from the product water outlet end of filter core, like figure 8.
When the filter core is in a flushing working condition, raw water enters from the concentrated water outlet end of the sub-filter core and is discharged from the water inlet end of the sub-filter core; or raw water enters from the water inlet end of the sub-filter element respectively and is discharged from the concentrated water outlet end of the sub-filter element.
In the embodiment, only one first filter element is provided, the first filter element unit is provided with 3 sub-filter elements 110, and the 3 sub-filter elements 110 are connected in parallel.
It should be noted that, the sub-filter element 110 of the present invention may be provided with 3, or may be provided with 2, 4, 6, 10, 30, etc., and the specific implementation manner is determined according to the actual situation.
Compared with embodiment 1, this embodiment has the advantage that when one of the sub-filter elements 110 fails, only the failed sub-filter element is replaced, and the non-failed sub-filter element 110 does not need to be replaced, thereby greatly reducing the replacement cost.
Example 5.
A double-filter element device with alternate flushing function has the same other characteristics as embodiment 4, and also has the following characteristics: the utility model discloses with the flux inequality of first filter core 100 filtration membrane and the flux of second filter core 200 filtration membrane.
The utility model discloses a flux of first filter core 100 filtration membrane is greater than or is less than the flux of second filter core 200 filtration membrane, can select different filter core unit ground to make water according to actual conditions, because the flux is big more, and the desalination is lower relatively, and the flux is little, and the desalination is higher relatively. Therefore, in the environment with good water quality, the filter element with larger flux is selected to improve the whole water yield. In the environment with poor water quality, the selection flux is less, and the water quality safety is ensured.
Example 6.
A double-filter element device with alternate flushing function has the same other characteristics as embodiment 4, and also has the following characteristics: the utility model discloses with the effective filtration area of first filter core 100 filtration membrane and the effective filtration area inequality of second filter core 200 filtration membrane.
The utility model discloses an effective filtration area of first filter core 100 filtration membrane is greater than or is less than the effective filtration area of second filter core 200 filtration membrane, can select different filter core to make water with the unit according to actual conditions, because effective filtration area is big more, its speed of making water is then faster, but the cost is high more. According to the actual required water production flux, the dosage of the membrane is selected to be slightly higher than that of the target water production flux filtration membrane so as to control the cost of the product.
For example, the filter element units with different effective filtering areas are selected to produce water by combining the actual water quality of raw water, for example, the filter element units with less effective filtering areas are selected to produce water when the water quality is better, and the speed of pure water passing through the filter element units with less effective filtering areas is faster than the speed of water quality passing through the filter element units with less effective filtering areas, so that the water production speed is reduced by selecting the filter element units with less effective filtering areas. In a similar way, on the contrary, when the water quality is poor, the filter element with large effective filtering area is selected to produce water, so that the water production speed can be improved.
Example 7.
A double-filter element device with alternate flushing function has the same other characteristics as embodiment 4, and also has the following characteristics: the flux of the filtration membrane of the first filter cartridge 100 of the present invention is equal to the flux of the filtration membrane of the second filter cartridge 200. Or the effective filtering area of the filtering membrane of the first filter element 100 and the effective filtering area of the filtering membrane of the second filter element 200 of the utility model are equal.
Example 8.
A water purifier is provided with the double-filter-element device with alternate flushing function of embodiment 1.
This purifier can only change this inefficacy filter core when one of them filter core became invalid, and need not to change the filter core that does not become invalid to greatly reduced replacement cost. Simultaneously the utility model discloses during the operating mode, during one of them filter core system water, the dense water that produces washes another filter core to improve the life-span of filter core. And the utility model discloses when washing the operating mode, two filter cores can carry out forward washing in turn, increase of service life. The utility model discloses a more diaphragm can be drawn into to diaphragm thickness is thin, consequently has resistant dirty and resistant stifled. Moreover, the membrane material of the utility model has low price, so the replacement cost is low.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The utility model provides a two filter core devices with alternate flushing function which characterized in that: the filter is provided with a first filter element, a second filter element and a water flow channel, wherein the concentrated water outlet end of the first filter element is connected with the concentrated water outlet end of the second filter element through the water flow channel, the water inlet end of the first filter element is connected with the water inlet end of the second filter element in parallel, and the water production outlet end of the first filter element is connected with the water production outlet end of the second filter element in parallel;
under the operation condition:
raw water enters a first filter element and is treated by the first filter element to obtain concentrated water A1And pure water A1Pure water A1Directly discharged from the water outlet end of the produced water of the first filter element; concentrated water A1The concentrated water enters the water flow channel through the concentrated water outlet end of the first filter element, enters the second filter element through the concentrated water outlet end of the second filter element after passing through the water flow channel, and is discharged from the water inlet end of the second filter element after being treated by the second filter element; or
Raw water enters a second filter element and is treated by the second filter element to obtain concentrated water A2And pure water A2Pure water A2Directly discharged from the water outlet end of the produced water of the second filter element; concentrated water A2The concentrated water enters the water flow channel through the concentrated water outlet end of the second filter element, enters the first filter element through the concentrated water outlet end of the first filter element after passing through the water flow channel, and is discharged from the water inlet end of the first filter element after being treated by the first filter element;
under the flushing condition:
raw water enters the first filter element, enters the second filter element through the water flow channel and is discharged from the water inlet end of the second filter element;
or
Raw water enters the second filter element, enters the first filter element through the water flow channel and is discharged from the water inlet end of the first filter element.
2. A dual cartridge assembly with alternate flushing function as claimed in claim 1 wherein: the valve is also provided with a first valve body, a second valve body, a third valve body, a fourth valve body and a fifth valve body; the first valve body is respectively connected with the water inlet end of the first filter element and an external raw water pipeline, the second valve body is respectively connected with the water inlet end of the second filter element and the external raw water pipeline, the third valve body is respectively connected with the water outlet end of the produced water of the first filter element and the water outlet end of the produced water of the second filter element, the fourth valve body is respectively connected with the water inlet end of the first filter element and the water outlet of the double-filter-element device, and the fifth valve body is respectively connected with the water inlet end of the second filter element and the water outlet of the double-filter-element device;
under the operation condition:
the first valve body, the third valve body and the fifth valve body are opened, and the second valve body and the fourth valve body are closed; or
The second valve body, the third valve body and the fourth valve body are opened, and the fifth valve body and the first valve body are closed;
under the flushing condition:
the first valve body and the fifth valve body are opened, and the second valve body, the third valve body and the fourth valve body are closed; or
The second valve body and the fourth valve body are opened, and the first valve body, the third valve body and the fifth valve body are closed.
3. A dual cartridge assembly with alternate flushing function as claimed in claim 1 wherein: the water flushing device is also provided with a heating device for heating the raw water under the flushing working condition, and the heating device is assembled on the water flow channel.
4. A dual cartridge assembly with alternate flushing function as claimed in claim 2 wherein: the booster pump is further arranged and is respectively connected with the first valve body and the second valve body.
5. A dual cartridge assembly with alternate flushing function as claimed in claim 2 wherein: a water storage tank for storing pure water is also arranged, and the third valve body is connected with the water storage tank.
6. The dual cartridge device with alternate flushing function of claim 5, wherein: the volume of the water storage tank is defined as V, and the V is more than or equal to 3L and less than or equal to 20L.
7. A dual cartridge assembly with alternate flushing function as claimed in claim 1 wherein: the flux of the first filter element filtering membrane is not equal to the flux of the second filter element filtering membrane; or
The flux of the first cartridge filter membrane is equal to the flux of the second cartridge filter membrane.
8. A dual cartridge assembly with alternate flushing function as claimed in claim 1 wherein: the effective filtering area of the first filter element filtering membrane is not equal to that of the second filter element filtering membrane; or
The effective filtration area of the first filter element filtration membrane is equal to the effective filtration area of the second filter element filtration membrane.
9. A dual cartridge assembly with alternate flushing function as claimed in claim 1 wherein: the first filter element is a reverse osmosis filter element, a nanofiltration filter element or an ultrafiltration filter element;
the second filter element is a reverse osmosis filter element, a nanofiltration filter element or an ultrafiltration filter element.
10. A water purifier, which is characterized in that: a dual cartridge device with alternate flushing as claimed in any one of claims 1 to 9 is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021790060.5U CN213446376U (en) | 2020-08-24 | 2020-08-24 | Double-filter-element device with alternate flushing function and water purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021790060.5U CN213446376U (en) | 2020-08-24 | 2020-08-24 | Double-filter-element device with alternate flushing function and water purifier |
Publications (1)
| Publication Number | Publication Date |
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| CN213446376U true CN213446376U (en) | 2021-06-15 |
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|---|---|---|---|
| CN202021790060.5U Active CN213446376U (en) | 2020-08-24 | 2020-08-24 | Double-filter-element device with alternate flushing function and water purifier |
Country Status (1)
| Country | Link |
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| CN (1) | CN213446376U (en) |
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2020
- 2020-08-24 CN CN202021790060.5U patent/CN213446376U/en active Active
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