CN114074967A - Household water purifying device - Google Patents
Household water purifying device Download PDFInfo
- Publication number
- CN114074967A CN114074967A CN202010809426.7A CN202010809426A CN114074967A CN 114074967 A CN114074967 A CN 114074967A CN 202010809426 A CN202010809426 A CN 202010809426A CN 114074967 A CN114074967 A CN 114074967A
- Authority
- CN
- China
- Prior art keywords
- water
- pipeline
- valve
- domestic
- mode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/04—Backflushing
Abstract
The invention discloses a household water purifying device, which comprises a filtering mechanism, a first pipeline, a second pipeline, a third pipeline, a fourth pipeline, a first valve and a second valve, wherein the third pipeline is communicated with a first water outlet; the fourth pipeline is communicated with the second water outlet; the household water purifying device is provided with a water purifying mode for opening the first valve and closing the second valve and a back flushing mode for closing the first valve and opening the second valve; when the household water purifying device is in the water purifying mode, the filtering mechanism can purify water flowing in from the first water inlet to obtain purified water and waste water, the purified water flows out from the first water outlet, and the waste water flows out from the second water outlet; when domestic water purification device is in the back flush mode, the water that gets into filtering mechanism from the second water inlet can carry out the back flush to filtering mechanism and flow out from the second delivery port. This domestic purifier can carry out the backwash to filtering mechanism, improves and washes efficiency and washing effect.
Description
Technical Field
The invention relates to the technical field of household water purification, in particular to a household water purification device.
Background
Along with the more and more serious water resource pollution, the safety problem of drinking water of urban residents is obvious, and in order to filter harmful substances in water, the application of the water purifier is more and more extensive. The existing water purifier is generally provided with a hollow fiber ultrafiltration membrane for purifying water, the hollow fiber ultrafiltration membrane is used as a high-precision filtering material, only water, beneficial mineral substances and trace elements are allowed to permeate to form purified water during application, and bacteria, rust, colloid, silt, suspended matters and macromolecular organic matters are intercepted in the hollow fiber ultrafiltration membrane and are discharged during washing. At present, when the hollow fiber ultrafiltration membrane is washed, source water is adopted as washing water to carry out forward washing, the ultrafiltration membrane is easy to block, and the washing effect cannot be guaranteed.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a household water purifying device.
According to a first aspect of the present invention, there is provided a domestic water purification device comprising:
the filtering mechanism is provided with a first water inlet, a second water inlet, a first water outlet and a second water outlet;
the first pipeline is communicated with the first water inlet and is used for supplying water to the first water inlet;
the second pipeline is communicated with the second water inlet and is used for supplying water to the second water inlet;
the third pipeline is communicated with the first water outlet and is used for outputting water flowing out of the first water outlet;
the fourth pipeline is communicated with the second water outlet and is used for outputting water flowing out of the second water outlet;
the first valve is arranged on the first pipeline;
the second valve is arranged on the second pipeline;
the household water purifying device is provided with a water purifying mode for opening the first valve and closing the second valve and a back flushing mode for closing the first valve and opening the second valve; when the household water purifying device is in the water purifying mode, the filtering mechanism can purify water flowing in from the first water inlet to obtain purified water and waste water, the purified water flows out from the first water outlet, and the waste water flows out from the second water outlet; when the domestic water purifying device is in a reverse flushing mode, water entering the filtering mechanism from the second water inlet can perform reverse flushing on the filtering mechanism and flows out from the second water outlet.
In the household water purification device, the filtering mechanism comprises a supporting layer and a separating layer, the supporting layer is a porous material formed by adopting a non-phase inversion method, and the ratio of the thickness of the separating layer to the thickness of the supporting layer is 2-5%; and/or the filtering mechanism comprises at least one of RO membrane or NF membrane, and the membrane sheet of the filtering mechanism has a thickness of 1um-50 um.
In the household water purifying apparatus of the present invention, the household water purifying apparatus further comprises:
the first pipeline and the second pipeline are communicated with the fifth pipeline;
and the water pump is arranged on the fifth pipeline.
In the household water purifying device, a pressure detector is arranged between the water pump and the filtering mechanism; when the household water purifying device is in the water purifying mode, if the pressure detected by the pressure detector is greater than or equal to a preset pressure threshold value, the household water purifying device is switched from the water purifying mode to the back flushing mode.
In the domestic water purifying device, when the domestic water purifying device is in the back flushing mode, the water pump performs back flushing on the filtering mechanism in a continuous or pulse mode, and the pressure of the back flushing is 3-10 bar; alternatively, the pressure of the back flush is 40% -100% of the pressure of the water pump.
In the household water purifying device, when the household water purifying device is in a water purifying mode, if the water yield of the filtering mechanism is less than a preset water yield, the household water purifying device enters the back flushing mode.
In the household water purifying device, a TDS detector is arranged on the fourth pipeline and is used for detecting the TDS value of the water flowing through the third pipeline; domestic purifier can be according to the TDS value control that the TDS detector detected the opening or closing of second valve.
In the household water purifying device of the present invention, after the household water purifying device performs a back flush on the filtering mechanism for a preset flush time, the household water purifying device ends the back flush mode.
In the household water purification apparatus of the present invention, the household water purification apparatus further comprises a flow meter; the household water purifying device can control the second valve to be opened or closed according to the flow detection value detected by the flowmeter.
In the household water purifying device, the second pipeline is provided with a heater for heating the water flowing through the second pipeline.
Compared with the prior art, the embodiment of the invention has the beneficial effects that: the embodiment of the invention provides a household water purifying device, which comprises: the filtering mechanism is provided with a first water inlet, a second water inlet, a first water outlet and a second water outlet; the first pipeline is communicated with the first water inlet and is used for supplying water to the first water inlet; the second pipeline is communicated with the second water inlet and is used for supplying water to the second water inlet; the third pipeline is communicated with the first water outlet and is used for outputting water flowing out of the first water outlet; the fourth pipeline is communicated with the second water outlet and is used for outputting water flowing out of the second water outlet; the first valve is arranged on the first pipeline; the second valve is arranged on the second pipeline; the household water purifying device is provided with a water purifying mode for opening the first valve and closing the second valve and a back flushing mode for closing the first valve and opening the second valve; when the household water purifying device is in the water purifying mode, the filtering mechanism can purify water flowing in from the first water inlet to obtain purified water and waste water, the purified water flows out from the first water outlet, and the waste water flows out from the second water outlet; when the domestic water purifying device is in a reverse flushing mode, water entering the filtering mechanism from the second water inlet can perform reverse flushing on the filtering mechanism and flows out from the second water outlet. This domestic purifier can carry out the backwash to filtering mechanism, improves and washes efficiency and washing effect, provides the guarantee for domestic purifier's water purification quality and water purification efficiency, need not frequently to change filtering mechanism, has reduced domestic purifier's cost from this.
Drawings
Fig. 1 is a schematic structural diagram of a household water purifying device provided in an embodiment of the present invention, wherein the household water purifying device is in a water purifying mode;
fig. 2 is a schematic structural diagram of a household water purifying device provided by an embodiment of the present invention, wherein the household water purifying device is in a back flushing mode;
FIG. 3 is a schematic structural diagram of a filter mechanism according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a household water purifying device provided by an embodiment of the invention;
fig. 5 is a schematic structural diagram of a household water purifying device provided by an embodiment of the invention;
FIG. 6 is a schematic structural diagram of a household water purifying device provided by an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a household water purifying device provided by the embodiment of the invention.
In the figure:
10. a filtering mechanism; 11. a first water inlet; 12. a second water inlet; 13. a first water outlet; 14. a second water outlet; 15. a support layer; 16. a separation layer; 21. a first pipeline; 22. a second pipeline; 23. a third pipeline; 24. a fourth pipeline; 25. a fifth pipeline; 31. a first valve; 32. a second valve; 40. a water pump; 50. a pressure detector; 60. a TDS detector; 70. a flow meter; 80. a heater.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
Referring to fig. 1 to 7, a household water purifying apparatus according to an embodiment of the present invention includes a filtering mechanism 10, a first pipeline 21, a second pipeline 22, a third pipeline 23, a fourth pipeline 24, a first valve 31, and a second valve 32. The filter mechanism 10 has a first water inlet 11, a second water inlet 12, a first water outlet 13 and a second water outlet 14. The first pipe 21 communicates with the first water inlet 11 for feeding water to the first water inlet 11. The second pipe 22 communicates with the second water inlet 12 for feeding water to the second water inlet 12. The third pipeline 23 is communicated with the first water outlet 13 and is used for outputting water flowing out through the first water outlet 13. The fourth pipeline 24 is communicated with the second water outlet 14 and is used for outputting water flowing out through the second water outlet 14. A first valve 31 is provided on the first line 21. A second valve 32 is provided on second conduit 22.
The household water purifying apparatus has a water purifying mode in which the first valve 31 is opened and the second valve 32 is closed, and a back flushing mode in which the first valve 31 is closed and the second valve 32 is opened. When the household water purifying device is in the water purifying mode, the filtering mechanism 10 can purify the water flowing in from the first water inlet 11 to obtain purified water and wastewater, the purified water flows out through the first water outlet 13, and the wastewater flows out through the second water outlet 14. When the domestic water purification apparatus is in the back flushing mode, water entering the filter means 10 from the second water inlet 12 can back flush the filter means 10 and flow out of the second water outlet 14. Specifically, the water flowing out after the back washing of the filter mechanism 10, i.e., the back washing water, flows out of the second water outlet 14 and is discharged through the fourth pipeline 24.
The domestic purifier of above-mentioned embodiment, rational in infrastructure, simple can carry out the backwash to filtering mechanism 10, improves and washes efficiency and washing effect, provides the guarantee for domestic purifier's water purification quality and water purification efficiency, need not frequently to change filtering mechanism 10, has reduced domestic purifier's cost from this.
In some embodiments, the filter mechanism 10 includes a support layer 15 and a separation layer 16, the support layer 15 being a porous material formed by a non-phase inversion method; the ratio of the thickness of the separation layer 16 to the thickness of the support layer 15 is 2% to 5%. When the household water purifying device carries out back flushing on the filtering mechanism 10, the connection between the supporting layer 15 and the separating layer 16 is reliable, and the filtering mechanism 10 cannot be damaged in the back flushing process.
It will be appreciated that the support layer 15 is a porous material formed using a non-phase inversion process. Illustratively, the non-phase inversion method refers to a method of preparing the support layer 15 of the filter mechanism 10 other than the phase inversion method.
The ratio of the thickness of the separation layer 16 to the thickness of the support layer 15 is 2% to 5%, such as 2%, 3%, 4%, 5%, and any other suitable value from 2% to 5%.
In some embodiments, the filtration mechanism 10 comprises at least one of an RO membrane or an NF membrane.
In some embodiments, the membrane of the filter mechanism 10 has a thickness of 1um to 50um, such as 1um, 20um, 50um, and any other value of 1um to 50 um.
In some embodiments, support layer 15 may be made of any suitable material, such as polypropylene, polyethylene, and the like. The release layer 16 may be made of any suitable material, such as polyamide or the like.
In some embodiments, the domestic water purification device further comprises a fifth pipe 25 and a water pump 40. The first and second lines 21, 22 are both in communication with a fifth line 25. The water pump 40 is provided on the fifth pipeline 25. The water pump 40 is illustratively a booster pump for pressurizing and delivering the water in the fifth pipeline 25 to the filtering mechanism 10. Because the pores of the RO membrane or the NF membrane are relatively small, water cannot pass through the RO membrane or the NF membrane only by the pressure of the water. After being pressurized by the booster pump, water can be purified by the filtering mechanism 10, the obtained purified water flows out through the first water outlet 13, and the obtained waste water is discharged through the second water outlet 14.
In some embodiments, both the first valve 31 and the second valve 32 may be solenoid valves or electrically switchable valves.
In some embodiments, the domestic water purification device further comprises a controller. The controller can be connected to the first valve 31 and the second valve 32 to control the opening and closing of the first valve 31 and/or the second valve 32. The controller can be coupled to the water pump 40 to control the operation of the water pump 40.
In some embodiments, a pressure detector 50 is also provided between the water pump 40 and the filter mechanism 10. When the household water purifying device is in the water purifying mode, if the pressure detected by the pressure detector 50 is greater than or equal to the preset pressure threshold, the household water purifying device is switched from the water purifying mode to the back flushing mode.
When domestic water purification device is in the water purification mode, the pressure that pressure detector 50 detected is greater than or equal to and predetermines pressure threshold, explains that filtering mechanism 10 is blockked up by pollutants such as bacterium, rust, colloid, silt, suspended solid and macromolecular organic matter, needs wash filtering mechanism 10. The preset pressure threshold may be designed according to actual requirements, and is not limited herein.
The back flushing of the filter mechanism 10 is controlled by the pressure detected by the pressure detector 50. Specifically, when water purification is required, the second valve 32 is closed, and the controller may control the water pump 40 to operate and the first valve 31 to open, so that water can enter the filter mechanism 10 through the first pipe 21 and the first water inlet 11, and the filter mechanism 10 can purify the water flowing in from the first water inlet 11. Meanwhile, the pressure detector 50 can detect the pressure of the water passing through the first pipe 21. When the pressure detected by the pressure detector 50 reaches the preset pressure threshold, the controller may control the first valve 31 to be closed and the second valve 32 to be opened, so that water can enter the filter mechanism 10 through the second pipeline 22 and the second water inlet 12, thereby back flushing the filter mechanism 10. The water pump 40 may continue to operate while the back flush is being performed. After the flushing is completed or during the flushing, the pressure of the pressure detector 50 may be cleared. The controller may control the first valve 31 to be opened and the second valve 32 to be closed so as to continue purifying the water using the filter mechanism 10, and the pressure detector 50 may re-detect the pressure of the water passing through the first pipe 21. When the pressure detected by the pressure detector 50 again reaches the preset pressure threshold, the filter mechanism 10 may be back-flushed again in the manner described above. And so on until the purification is finished. From this can carry out the backwash to filter mechanism 10 automatically, improve domestic purifier's degree of automation to guarantee domestic purifier's water purification quality and water purification efficiency.
In some embodiments, the water pump 40 backflushes the filter mechanism 10 in a continuous or pulsed manner when the domestic water purification apparatus is in a backflush mode. In some embodiments, the pressure of the back flush is 3bar to 10bar, such as 3bar, 5bar, 8bar, 10bar, and any other suitable value in 3bar to 10 bar. Preferably, the pressure of the backflush is between 3bar and 8 bar. Most preferably, the pressure of the backflush is between 5bar and 8 bar.
In some embodiments, the pressure of the back flush is 40% -100% of the pressure of the water pump, such as 40%, 70%, 90%, 100%, and any other suitable value in 40% -100%. It is understood that the pressure of the backflush is greater than or equal to 3 bar. Preferably, the pressure of the back flush is 40% to 90%. Most preferably, the pressure of the back flush is 70% to 90%.
In some embodiments, the water pump 40 is rated for normal operation at a pressure A, and the back flush pressure is 30% A-80% A, such as 30% A, 50% A, 70% A, 80% A, or any other suitable value from 30% A-80% A. In some embodiments, the pressure of the back flush is 70% of the rated pressure of the water pump 40.
In some embodiments, when the household water purification apparatus is in the water purification mode, if the water yield of the filter mechanism 10 is less than the predetermined water yield, the household water purification apparatus enters the back flushing mode.
The back flushing of the filter means 10 is controlled by the water production of the filter means 10. The water production of the filter mechanism 10 may be detected by a flow detector. Specifically, when water purification is required, the second valve 32 is closed, and the controller may control the water pump 40 to operate and the first valve 31 to open, so that water can enter the filter mechanism 10 through the first pipe 21 and the first water inlet 11, and the filter mechanism 10 can purify the water flowing in from the first water inlet 11. Meanwhile, the flow rate detector can detect the water yield of the filter mechanism 10. When the water production of the filter mechanism 10 is less than the predetermined water production, the controller may control the first valve 31 to close and the second valve 32 to open, so that water can enter the filter mechanism 10 through the second pipe 22 and the second water inlet 12, thereby back-flushing the filter mechanism 10. The water pump 40 may continue to operate while the back flush is being performed. After the flushing is finished or in the flushing process, the water yield of the flow detector can be cleared. The controller may control the first valve 31 to open and the second valve 32 to close to continue purifying water with the filter mechanism 10, and the flow detector may re-detect the water production of the filter mechanism 10. When the water production of the filter means 10 is again less than the preset water production, the filter means 10 may be backwashed again in the manner described above. And so on until the purification is finished. From this can carry out the backwash to filter mechanism 10 automatically, improve domestic purifier's degree of automation to guarantee domestic purifier's water purification quality and water purification efficiency.
In some embodiments, a TDS detector 60 is provided on the fourth conduit 24 for detecting a TDS value of the water flowing through the fourth conduit 24. The household water purification apparatus can control the opening or closing of the second valve 32 according to the TDS value detected by the TDS detector 60.
Illustratively, the TDS detector 60 is a total dissolved solids detector.
In some embodiments, the domestic water purification apparatus enters a back-flush mode when the TDS value detected by the TDS detector 60 is greater than or equal to a first preset value. When the TDS value detected by the TDS detector 60 is less than or equal to the second preset value, the household water purification apparatus ends the back washing mode.
The first preset value and the second preset value can be designed according to actual requirements as long as the first preset value is larger than the second preset value.
The back flushing of the filter mechanism 10 is controlled by the TDS value detected by the TDS detector 60. Specifically, when water purification is required, the second valve 32 is closed, and the controller may control the water pump 40 to operate and the first valve 31 to open, so that water can enter the filter mechanism 10 through the first pipe 21 and the first water inlet 11, and the filter mechanism 10 can purify the water flowing in from the first water inlet 11. Meanwhile, the TDS detector 60 can detect a TDS value of the water passing through the fourth pipe 24. When the TDS value detected by the TDS detector 60 is greater than or equal to the first preset value, the controller may control the first valve 31 to be closed and the second valve 32 to be opened, so that water can enter the filtering mechanism 10 through the second pipeline 22 and the second water inlet 12, thereby back-flushing the filtering mechanism 10. The water pump 40 may continue to operate while the back flush is being performed. When the TDS value detected by the TDS detector 60 is less than or equal to the second preset value, the backwashing of the filter mechanism 10 is finished. The controller may control the first valve 31 to open and the second valve 32 to close to continue purifying the water with the filter mechanism 10. When the TDS value detected by the TDS detector 60 is again greater than or equal to the first preset value, the filter mechanism 10 may be backwashed again in the manner described above. And so on until the purification is finished. From this can carry out the backwash to filter mechanism 10 automatically, improve domestic purifier's degree of automation to guarantee domestic purifier's water purification quality and water purification efficiency.
In some embodiments, the household water purification apparatus ends the back washing mode after the household water purification apparatus back washes the filter mechanism 10 for a preset washing time.
The preset flushing time may be designed according to actual requirements, such as 30s, 1 min, and the like, and is not limited herein.
In some embodiments, the domestic water purification device further comprises a flow meter 70. The household water purifying apparatus can control the opening or closing of the second valve 32 according to the flow rate detection value detected by the flow meter 70.
The back flushing of the filter mechanism 10 is controlled by a detected flow value detected by the flow meter 70. Specifically, when water purification is required, the second valve 32 is closed, and the controller may control the water pump 40 to operate and the first valve 31 to open, so that water can enter the filter mechanism 10 through the first pipe 21 and the first water inlet 11, and the filter mechanism 10 can purify the water flowing in from the first water inlet 11. At the same time, the flow meter 70 is able to detect the amount of water passing through the filter mechanism 10. When the detected flow value detected by the flow meter 70 reaches the first preset flow value, that is, the amount of water passing through the filter mechanism 10 reaches the first preset flow value, the controller may control the first valve 31 to be closed and the second valve 32 to be opened, so that water can enter the filter mechanism 10 through the second pipeline 22 and the second water inlet 12, thereby performing back flushing on the filter mechanism 10. The water pump 40 may continue to operate while the back flush is being performed. The flow rate detection value of the flow meter 70 may be cleared after the flushing is completed. The controller may control the first valve 31 to open and the second valve 32 to close to continue to purify the water using the filter mechanism 10, and the flow meter 70 may continue to detect the amount of water passing through the filter mechanism 10. When the detected flow rate value detected by the flow meter 70 reaches the first preset flow rate value again, the filter mechanism 10 may be backwashed again in the above-described manner. And so on until the purification is finished. From this can carry out the backwash to filter mechanism 10 automatically, improve domestic purifier's degree of automation to guarantee domestic purifier's water purification quality and water purification efficiency.
The first preset flow value may be designed according to actual requirements, and is not limited again.
In some embodiments, when the detected flow value of the flow meter 70 reaches the first preset flow value and the operation time of the water pump 40 reaches the preset operation time, the controller may control the first valve 31 to be closed and the second valve 32 to be opened, so that water can enter the filter mechanism 10 through the second pipeline 22 and the second water inlet 12, thereby back-flushing the filter mechanism 10.
In some embodiments, a heater 80 is disposed on the second conduit 22, and the heater 80 is configured to heat the water flowing through the second conduit 22. When the home purification apparatus is in the back-flushing mode, the controller may control the heater 80 to operate to heat the water flowing through the second pipe 22. The water heated by the heater 80 enters the filtering mechanism 10 through the second water inlet 12 to perform the back flushing, so that the flushing efficiency and the flushing quality can be improved, and at least one of the second pipeline 22, the filtering mechanism 10 and the fourth pipeline 24 can be sterilized at high temperature.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The above disclosure provides many different embodiments, or examples, for implementing different features of the invention. The components and arrangements of the specific examples are described above to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.
In the description of the present specification, reference to the description of the terms "one embodiment", "some embodiments", "an illustrative embodiment", "an example", "a specific example", or "some examples", etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (10)
1. A domestic water purification unit, its characterized in that includes:
the filtering mechanism is provided with a first water inlet, a second water inlet, a first water outlet and a second water outlet;
the first pipeline is communicated with the first water inlet and is used for supplying water to the first water inlet;
the second pipeline is communicated with the second water inlet and is used for supplying water to the second water inlet;
the third pipeline is communicated with the first water outlet and is used for outputting water flowing out of the first water outlet;
the fourth pipeline is communicated with the second water outlet and is used for outputting water flowing out of the second water outlet;
the first valve is arranged on the first pipeline;
the second valve is arranged on the second pipeline;
the household water purifying device is provided with a water purifying mode for opening the first valve and closing the second valve and a back flushing mode for closing the first valve and opening the second valve; when the household water purifying device is in the water purifying mode, the filtering mechanism can purify water flowing in from the first water inlet to obtain purified water and waste water, the purified water flows out from the first water outlet, and the waste water flows out from the second water outlet; when the domestic water purifying device is in a reverse flushing mode, water entering the filtering mechanism from the second water inlet can perform reverse flushing on the filtering mechanism and flows out from the second water outlet.
2. The domestic water purification apparatus of claim 1, wherein said filtering means comprises a support layer and a separation layer, said support layer being a porous material formed by a non-phase inversion method, the ratio of the thickness of said separation layer to the thickness of said support layer being 2% to 5%; and/or the filtering mechanism comprises at least one of RO membrane or NF membrane, and the membrane sheet of the filtering mechanism has a thickness of 1um-50 um.
3. The domestic water purification device of claim 1 or 2, further comprising:
the first pipeline and the second pipeline are communicated with the fifth pipeline;
and the water pump is arranged on the fifth pipeline.
4. The domestic water purification apparatus of claim 3, wherein a pressure detector is further provided between said water pump and said filter mechanism; when the household water purifying device is in the water purifying mode, if the pressure detected by the pressure detector is greater than or equal to a preset pressure threshold value, the household water purifying device is switched from the water purifying mode to the back flushing mode.
5. The domestic water purification apparatus of claim 3, wherein when said domestic water purification apparatus is in said back flush mode, said water pump back flushes said filter means in a continuous or pulsed manner, said back flushing being at a pressure of 3bar to 10 bar; alternatively, the pressure of the back flush is 40% -100% of the pressure of the water pump.
6. The domestic water purification apparatus of claim 1 or 2, wherein when said domestic water purification apparatus is in a water purification mode, said domestic water purification apparatus enters said back-flushing mode if said water production of said filter mechanism is less than a predetermined water production.
7. The domestic water purification device of claim 1 or 2, wherein a TDS detector is provided on the fourth line for detecting a TDS value of the water flowing through the third line; domestic purifier can be according to the TDS value control that the TDS detector detected the opening or closing of second valve.
8. The domestic water purification apparatus of claim 7, wherein said domestic water purification apparatus terminates said back flush mode after said domestic water purification apparatus back flushes said filter mechanism for a predetermined flush time.
9. The domestic water purification apparatus of claim 1 or 2, further comprising a flow meter; the household water purifying device can control the second valve to be opened or closed according to the flow detection value detected by the flowmeter.
10. A domestic water purification device as claimed in claim 1 or 2, wherein the second conduit is provided with a heater for heating water flowing through the second conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010809426.7A CN114074967A (en) | 2020-08-12 | 2020-08-12 | Household water purifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010809426.7A CN114074967A (en) | 2020-08-12 | 2020-08-12 | Household water purifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114074967A true CN114074967A (en) | 2022-02-22 |
Family
ID=80280369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010809426.7A Pending CN114074967A (en) | 2020-08-12 | 2020-08-12 | Household water purifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114074967A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102512966A (en) * | 2011-12-02 | 2012-06-27 | 杭州求是膜技术有限公司 | Reverse osmosis membrane pollution prevention and control method |
| CN104001361A (en) * | 2013-02-26 | 2014-08-27 | 美的集团股份有限公司 | Water purification filtration device and filtering method thereof |
| CN105198111A (en) * | 2015-11-06 | 2015-12-30 | 北京金泽环境能源技术研究有限公司 | Household water purifier capable of automatically cleaning filter membrane and method |
| CN105540746A (en) * | 2016-01-22 | 2016-05-04 | 珠海格力电器股份有限公司 | Water purifying system |
| CN105621754A (en) * | 2014-10-31 | 2016-06-01 | 道易（青岛）净水设备制造有限公司 | Backwash osmotic water purification machine with monitoring function |
| CN206511963U (en) * | 2016-09-22 | 2017-09-22 | 舒燕 | A kind of water purifier and water cleaning systems |
| CN107244758A (en) * | 2017-07-13 | 2017-10-13 | 南京水杯子科技股份有限公司 | A kind of water household water-purifying machine suitable soon |
| CN108558052A (en) * | 2018-06-20 | 2018-09-21 | 潍坊海润网络科技有限公司 | A kind of method reducing water purifier wastewater displacement and the water cleaning systems for realizing this method |
| CN208038154U (en) * | 2017-12-22 | 2018-11-02 | 珠海格力电器股份有限公司 | Concentrated water discharge device and water cleaning systems comprising it |
| CN212609699U (en) * | 2020-08-12 | 2021-02-26 | 云米互联科技(广东)有限公司 | Household water purifying device |
-
2020
- 2020-08-12 CN CN202010809426.7A patent/CN114074967A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102512966A (en) * | 2011-12-02 | 2012-06-27 | 杭州求是膜技术有限公司 | Reverse osmosis membrane pollution prevention and control method |
| CN104001361A (en) * | 2013-02-26 | 2014-08-27 | 美的集团股份有限公司 | Water purification filtration device and filtering method thereof |
| CN105621754A (en) * | 2014-10-31 | 2016-06-01 | 道易（青岛）净水设备制造有限公司 | Backwash osmotic water purification machine with monitoring function |
| CN105198111A (en) * | 2015-11-06 | 2015-12-30 | 北京金泽环境能源技术研究有限公司 | Household water purifier capable of automatically cleaning filter membrane and method |
| CN105540746A (en) * | 2016-01-22 | 2016-05-04 | 珠海格力电器股份有限公司 | Water purifying system |
| CN206511963U (en) * | 2016-09-22 | 2017-09-22 | 舒燕 | A kind of water purifier and water cleaning systems |
| CN107244758A (en) * | 2017-07-13 | 2017-10-13 | 南京水杯子科技股份有限公司 | A kind of water household water-purifying machine suitable soon |
| CN208038154U (en) * | 2017-12-22 | 2018-11-02 | 珠海格力电器股份有限公司 | Concentrated water discharge device and water cleaning systems comprising it |
| CN108558052A (en) * | 2018-06-20 | 2018-09-21 | 潍坊海润网络科技有限公司 | A kind of method reducing water purifier wastewater displacement and the water cleaning systems for realizing this method |
| CN212609699U (en) * | 2020-08-12 | 2021-02-26 | 云米互联科技(广东)有限公司 | Household water purifying device |
Non-Patent Citations (1)
| Title |
|---|
| 环境保护部环境工程评估中心: "《环境影响评价技术导则与标准汇编增补本（2011）》", 中国环境科学出版社, pages: 609 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102030390B (en) | Membrane precision filter for wastewater treatment and application thereof | |
| JP6441808B2 (en) | Desalination apparatus and desalination method | |
| CN212609699U (en) | Household water purifying device | |
| JP2017518176A (en) | System for treating water | |
| JPH06277664A (en) | Method and apparatus for clarifying surface flowing water with membrane | |
| KR101802600B1 (en) | water purifying system and backwash module control method thereof | |
| CA3102361A1 (en) | Method and apparatus for treating commercial and industrial laundry wastewater | |
| CN110902764A (en) | Circulating pump cross flow anti-fouling process for ultrafiltration treatment of high-turbidity wastewater | |
| WO2011105566A1 (en) | Seawater desalting system | |
| CN210030227U (en) | Concentration treatment device for chemical nickel plating rinsing wastewater | |
| JP6087667B2 (en) | Desalination method and desalination apparatus | |
| WO2011062268A1 (en) | Water purification device and method for operating same | |
| CN112028270A (en) | Concentration treatment device and treatment method for chemical nickel plating rinsing wastewater | |
| CN213294797U (en) | Reverse osmosis water purification system and water purification unit | |
| CN211770630U (en) | Multi-water-quality water purification system on bench | |
| CN114074967A (en) | Household water purifying device | |
| Xu et al. | Study of critical flux in ultrafiltration of seawater: New measurement and sub-and super-critical flux operations | |
| KR101693100B1 (en) | Smart Membrane-Filteration Water Treating System | |
| CN203498181U (en) | System for recycling waste acid and waste alkali | |
| CN108218003B (en) | Water purifier and water purifying method thereof | |
| JP2010201335A (en) | Water treatment system and water treatment method | |
| CN205099414U (en) | Reverse osmosis water treatment equipment | |
| KR20150001208A (en) | Cleaning system of separation membrane and method using the same | |
| CN103084070A (en) | Method for preventing whole-house separate purifying device film from being polluted | |
| Van Nieuwenhuijzen et al. | Direct wastewater membrane filtration for advanced particle removal from raw wastewater |
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 |