CN216808230U - Waterway system and water purifier - Google Patents
Waterway system and water purifier Download PDFInfo
- Publication number
- CN216808230U CN216808230U CN202123431360.1U CN202123431360U CN216808230U CN 216808230 U CN216808230 U CN 216808230U CN 202123431360 U CN202123431360 U CN 202123431360U CN 216808230 U CN216808230 U CN 216808230U
- Authority
- CN
- China
- Prior art keywords
- water
- reverse osmosis
- filter element
- osmosis filter
- water outlet
- 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.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 1097
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 718
- 239000002351 wastewater Substances 0.000 claims abstract description 697
- 238000007599 discharging Methods 0.000 claims abstract description 17
- 239000003651 drinking water Substances 0.000 claims description 242
- 235000020188 drinking water Nutrition 0.000 claims description 237
- 230000000670 limiting effect Effects 0.000 claims description 225
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 52
- 238000011045 prefiltration Methods 0.000 claims description 18
- 238000001728 nano-filtration Methods 0.000 claims description 15
- 238000000108 ultra-filtration Methods 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 9
- 238000011144 upstream manufacturing Methods 0.000 claims description 8
- 235000012206 bottled water Nutrition 0.000 claims 5
- 239000008399 tap water Substances 0.000 abstract description 223
- 235000020679 tap water Nutrition 0.000 abstract description 223
- 238000000034 method Methods 0.000 abstract description 181
- 238000001914 filtration Methods 0.000 abstract description 52
- 239000013505 freshwater Substances 0.000 abstract description 24
- 238000006386 neutralization reaction Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 description 72
- 230000008569 process Effects 0.000 description 61
- 150000002500 ions Chemical class 0.000 description 51
- 230000002829 reductive effect Effects 0.000 description 49
- 238000004519 manufacturing process Methods 0.000 description 36
- 238000010992 reflux Methods 0.000 description 33
- 230000035622 drinking Effects 0.000 description 27
- 239000003344 environmental pollutant Substances 0.000 description 25
- 231100000719 pollutant Toxicity 0.000 description 25
- 230000008859 change Effects 0.000 description 24
- 238000010586 diagram Methods 0.000 description 24
- 238000005406 washing Methods 0.000 description 24
- 239000011521 glass Substances 0.000 description 18
- 239000002131 composite material Substances 0.000 description 12
- 230000004907 flux Effects 0.000 description 12
- 239000000463 material Substances 0.000 description 12
- 229910052799 carbon Inorganic materials 0.000 description 8
- 238000002156 mixing Methods 0.000 description 6
- 239000012528 membrane Substances 0.000 description 5
- 238000011084 recovery Methods 0.000 description 4
- 239000000306 component Substances 0.000 description 3
- 230000003204 osmotic effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000135164 Timea Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910001410 inorganic ion Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a waterway system and a water purifier, wherein the waterway system enables wastewater to flow back to a reverse osmosis filter element through a pipeline and then enter the reverse osmosis filter element again for secondary filtration after being mixed with tap water. The method can greatly reduce the discharge of waste water while ensuring the performance and the service life of the reverse osmosis filter element; meanwhile, the wastewater is connected with a domestic tap, and when the tap is opened, the wastewater discharge is completed, and the wastewater is secondarily utilized, so that the ecological environment-friendly requirement is met; in addition, a waste water direct discharging pipeline is also arranged and is used for directly discharging waste water when necessary; this system has the pure water backward flow branch road simultaneously, with the pure water backward flow to reverse osmosis filter core front end, washes and the former raw water of neutralization reverse osmosis filter core, and no residue old water just can drink, and quality of water is stable, provides pure fresh water all the time.
Description
Technical Field
The utility model relates to the technical field of water purifiers, in particular to a waterway system and a water purifier with the same.
Background
By the reverse osmosis process, water can be passed from a solution with a high concentration to a solution with a low concentration. Since inorganic ions, colloidal substances and macromolecular solutes cannot pass through the reverse osmosis membrane, unwanted substances remain at the end of the solution having a high concentration during this process, while purified pure water is obtained at the end having a low concentration. The process of the core component reverse osmosis filter element of the water purifier is actually a liquid concentration process, the salt content in water is continuously increased along with the water flowing through the surface of the reverse osmosis filter element, and the osmotic pressure of the water is also continuously increased. When the osmotic pressure increases to the pressure of the booster pump, water cannot flow into one end of the purified water through the reverse osmosis membrane. The part of the water which fails to pass is the waste water generated in the process of making water.
The lower the amount of wastewater, the higher the recovery rate (water yield/total water intake 100%), the more easily colloids, organic pollutants and scale-forming ions are deposited on the surface of the reverse osmosis filter element, which causes the blockage of the reverse osmosis filter element, and the reduction of the water yield and the desalination rate. Therefore, in order to ensure the performance of the reverse osmosis filter element and prolong the service life of the reverse osmosis filter element, the recovery rate of the reverse osmosis system on the market is generally 50-60%. But the recovery rate is not high, so that the waste water is excessive, and the resource utilization is not facilitated.
After the water purifier does not work for a long time, the concentrated water on the side which is not filtered by the reverse osmosis filter element slowly permeates to the pure water side due to osmotic pressure, and the more the concentrated water permeates, so that the TDS value of the first cup of water is higher under the general condition, and direct drinking is not recommended. In addition, pure water filtered by the reverse osmosis filter element can be retained in the rear filter element for a long time, so that the risk of bacterial breeding of the rear filter element is increased, and the health potential safety hazard exists.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a waterway system and a water purifier, and aims to solve the problem that the waterway system in the existing water purifier generates too much waste water, which is not beneficial to resource utilization.
In order to achieve the above object, the present invention provides a waterway system, including:
a first reverse osmosis filter element having a first water inlet, a first water outlet and a first waste water outlet;
the booster pump is provided with a pump inlet and a pump outlet, the pump inlet is communicated with a water source, the pump outlet is communicated with the first water inlet, and the first wastewater inlet is communicated with one end of a first wastewater direct discharge pipeline;
the water outlet component is provided with a water outlet, a drinking water inlet and a domestic water inlet; the drinking water inlet is communicated with the first water outlet, and the domestic water inlet is communicated with the first wastewater outlet;
the first flow limiting valve is arranged on the first wastewater straight-discharge pipeline and has a flow limiting function;
the first switch valve is arranged on the first waste water straight-discharging pipeline and is positioned at the downstream of the first flow limiting valve, and a flow path between the first switch valve and the first flow limiting valve is communicated with the pump inlet through a first branch;
the first check valve is arranged on the first branch, and the flow direction of the first check valve flows from the first waste water port to the pump inlet;
the high-voltage switch is arranged on a flow path between the first water outlet and the drinking water inlet;
the first reverse osmosis filter element with flow path between the high-voltage switch pass through the pure water backward flow branch road with the pump entry intercommunication, be provided with second ooff valve and second check valve on the pure water backward flow branch road, the flow path of second check valve by first delivery port flow direction the pump entry.
In an embodiment, the drinking water dispenser further comprises a third one-way valve, which is disposed on a flow path between the first water outlet and the high-pressure switch, and the flow direction of the third one-way valve flows from the first water outlet to the drinking water inlet.
In an embodiment, the water outlet assembly includes a drinking water outlet assembly and a domestic water outlet assembly which are independent of each other, the drinking water outlet assembly has the drinking water inlet, the domestic water outlet assembly has the domestic water inlet, and the water outlet includes a drinking water outlet disposed on the drinking water outlet assembly and a domestic water outlet disposed on the domestic water outlet assembly.
In an embodiment, the waterway system further includes a second reverse osmosis filter element disposed on the flow path between the first waste water port and the first flow limiting valve, the second reverse osmosis filter element having a second water inlet, a second water outlet and a second waste water port, the second water inlet being communicated with the first waste water port, the second waste water port being communicated with the water inlet end of the first flow limiting valve, the second water outlet being communicated with the flow path between the first water outlet and the third one-way valve.
In an embodiment, the water outlet assembly includes a drinking water outlet assembly and a domestic water outlet assembly which are independent of each other, the drinking water outlet assembly has the drinking water inlet, the domestic water outlet assembly has the domestic water inlet, and the water outlet includes a drinking water outlet disposed on the drinking water outlet assembly and a domestic water outlet disposed on the domestic water outlet assembly.
In one embodiment, the device further comprises a second reverse osmosis filter element, wherein the second reverse osmosis filter element is provided with a second water inlet, a second water outlet and a second waste water outlet, the second water inlet is communicated with the pump outlet, the second waste water outlet is communicated with one end of a second waste water direct discharge pipeline, a second flow limiting valve and a third switch valve are arranged on the second waste water direct discharge pipeline, and the second flow limiting valve has a flow limiting function; the third switch valve is positioned at the downstream of the second flow limiting valve, a flow path between the third switch valve and the second flow limiting valve is communicated with the pump inlet through a second branch, a fourth one-way valve is arranged on the second branch, and the flow direction of the fourth one-way valve flows from the second waste water port to the pump inlet; the second water outlet is communicated with a flow path between the first water outlet and the third one-way valve.
In an embodiment, the water outlet assembly includes a drinking water outlet assembly and a domestic water outlet assembly which are independent of each other, the drinking water outlet assembly has the drinking water inlet, the domestic water outlet assembly has the domestic water inlet, and the water outlet includes a drinking water outlet disposed on the drinking water outlet assembly and a domestic water outlet disposed on the domestic water outlet assembly.
In one embodiment, the waterway system further comprises a preposed filter element, the preposed filter element is arranged at the upstream of the booster pump, the water outlet side of the first one-way valve is communicated with the pump inlet, and the water outlet amount of the preposed filter element is not less than 8L/min.
In an embodiment, the waterway system further comprises a pre-filter element, the pre-filter element is arranged at the upstream of the booster pump, the water outlet side of the first one-way valve is communicated with the pump inlet, and the water outlet amount of the pre-filter element is less than 8L/min.
In one embodiment, a water inlet valve is arranged between the upstream of the pre-filter element or the intersection of the flow path where the pump inlet is positioned and the first branch path and the pre-filter element.
In an embodiment, the waterway system further comprises a post-filter element disposed on the flow path between the first reverse osmosis filter element and the third one-way valve.
In one embodiment, the pre-filter element is a PP filter element, an activated carbon filter element, an ultrafiltration filter element or a nanofiltration filter element; the post-positioned filter element is an activated carbon filter element.
The utility model also provides a water purifier, which comprises a waterway system, wherein the waterway system comprises:
the first reverse osmosis filter element is provided with a first water inlet, a first water outlet and a first waste water outlet;
the booster pump is provided with a pump inlet and a pump outlet, the pump inlet is used for being communicated with a water source, the pump outlet is communicated with the first water inlet, and the first wastewater outlet is communicated with one end of a first wastewater direct discharge pipeline;
the water outlet component is provided with a water outlet, a drinking water inlet and a domestic water inlet; the drinking water inlet is communicated with the first water outlet, and the domestic water inlet is communicated with the first wastewater outlet;
the first flow limiting valve is arranged on the first wastewater straight-discharge pipeline and has a flow limiting function;
the first switch valve is arranged on the first waste water straight-discharging pipeline and is positioned at the downstream of the first flow limiting valve, and a flow path between the first switch valve and the first flow limiting valve is communicated with the pump inlet through a first branch;
the first check valve is arranged on the first branch, and the flow direction of the first check valve flows from the first waste water port to the pump inlet;
the high-voltage switch is arranged on a flow path between the first water outlet and the drinking water inlet;
the first reverse osmosis filter element with flow path between the high-voltage switch pass through the pure water backward flow branch road with the pump entry intercommunication, be provided with second ooff valve and second check valve on the pure water backward flow branch road, the flow path of second check valve by first delivery port flow direction the pump entry.
The utility model provides a reverse osmosis system with pure water backflow and wastewater backflow, wherein wastewater flows back to a reverse osmosis filter element through a pipeline, is mixed with tap water and then enters the reverse osmosis filter element again for secondary filtration. The method can greatly reduce the discharge of waste water while ensuring the performance and the service life of the reverse osmosis filter element; meanwhile, the wastewater is connected with a domestic tap, and when the tap is opened, the wastewater discharge is completed, and the wastewater is secondarily utilized, so that the ecological environment-friendly requirement is met; in addition, a waste water direct discharging pipeline is also arranged and is used for directly discharging waste water when necessary; this system has the pure water backward flow branch road simultaneously, with the pure water backward flow to reverse osmosis filter core front end, washes and the former raw water of neutralization reverse osmosis filter core, and no residue old water just can drink, and quality of water is stable, provides pure fresh water all the time.
When a user opens the domestic faucet, tap water with lower ion concentration can replace waste water with high ion concentration accumulated on the waste water side of the reverse osmosis filter element, so that the problem of the first cup of water is effectively solved; and because the domestic water flow is large, when passing through the reverse osmosis filter element, the water can wash away pollutants such as scale and organic matters deposited on the side surface of the wastewater of the reverse osmosis filter element, so that the risk of scaling of the membrane is reduced, and the service life of the membrane is prolonged; meanwhile, the process can flush the wastewater return pipeline and the flow-limiting valve, so that the risk of blockage of the flow-limiting valve due to scaling is reduced, and the service life of the membrane is further prolonged; when the domestic faucet is opened, the waste water generated and accumulated in the water production process can be discharged through the domestic faucet for domestic water use, and the waste water utilization is realized in the true sense.
When the drinking water taking time of a user reaches a certain value, the waste water direct discharging program is started, the initial level can be recovered within a short time of the TDS of the discharged water, and the influence on the drinking water flow is weak.
When the situation that the water purifier is not used by a user for a long time is monitored, a pure water backflow procedure is started, replacement of original residual old water in the filter element and the waste water pipeline is completed, the problems of the first cup of water and the old water are solved, the water quality is stable, and pure fresh water is provided all the time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic flow diagram of a waterway system according to a first embodiment of the present application;
FIG. 2 is a schematic flow diagram of a waterway system according to a second embodiment of the present application;
FIG. 3 is a schematic flow diagram of a waterway system according to a third embodiment of the present application;
FIG. 4 is a schematic flow diagram of a waterway system according to a fourth embodiment of the present application;
FIG. 5 is a schematic flow diagram of a fifth embodiment of a waterway system according to the present application;
FIG. 6 is a schematic flow diagram of a waterway system according to a sixth embodiment of the present application;
FIG. 7 is a schematic flow diagram of a waterway system according to a seventh embodiment of the present application;
FIG. 8 is a schematic flow diagram of an eighth embodiment of a waterway system according to the present application;
FIG. 9 is a schematic flow diagram of a waterway system according to a ninth embodiment of the present application;
FIG. 10 is a schematic flow diagram of a waterway system according to a tenth embodiment of the present application;
FIG. 11 is a schematic flow diagram of an eleventh embodiment of a waterway system according to the present application;
FIG. 12 is a schematic flow diagram of a waterway system according to a twelfth embodiment of the present application;
FIG. 13 is a schematic flow diagram of a waterway system according to a thirteenth embodiment of the present application;
FIG. 14 is a schematic flow diagram of a waterway system according to a fourteenth embodiment of the present application;
FIG. 15 is a schematic flow diagram of a waterway system according to a fifteenth embodiment of the present application;
FIG. 16 is a schematic flow diagram of a waterway system according to a sixteenth embodiment of the present application;
FIG. 17 is a schematic flow path diagram of a waterway system of a seventeenth embodiment of the present application;
FIG. 18 is a schematic flow diagram of an eighteenth embodiment of a waterway system according to the present application;
FIG. 19 is a schematic flow diagram of a nineteenth embodiment of a waterway system according to the present application;
FIG. 20 is a schematic flow diagram of a waterway system according to a twentieth embodiment of the present application;
FIG. 21 is a schematic flow diagram of a waterway system according to a twenty-first embodiment of the present application;
FIG. 22 is a schematic flow diagram of a waterway system according to a twenty-second embodiment of the present application;
FIG. 23 is a schematic flow diagram illustrating a twenty-third embodiment of a waterway system of the present application;
fig. 24 is a schematic flow diagram of a twenty-fourth embodiment of a waterway system according to the present application.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name(s) |
| 11a | First reverse |
111 | |
| 112 | The |
113 | First |
| 11b | Second reverse |
114 | |
| 115 | The |
116 | Second |
| 12 | |
121 | |
| 122 | Pump outlet | P1 | First branch |
| P2 | Second branch | Q1 | First wastewater direct discharge pipeline |
| Q2 | Second wastewater |
14a | First |
| 14b | Second |
18a | |
| 18b | |
18c | Third on-off |
| 15a | |
15b | |
| 15c | |
15d | |
| 16 | High- |
13 | |
| 131 | |
132 | Water inlet for |
| 133 | |
13a | Drinking |
| 13b | Domestic |
131a | |
| 131b | |
17a | |
| 17b | Rear filter element | R | Pure water return branch |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "a and/or B" as an example, including either the a aspect, or the B aspect, or both the a and B aspects. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a waterway system and a water purifier provided with the same.
This waterway system includes: the water purifier comprises a first reverse osmosis filter element 11a, a booster pump 12, a water outlet assembly 13, a first flow limiting valve 14a, a first switch valve 18a, a second switch valve 18b, a first one-way valve 15a, a second one-way valve 15b and a high-pressure switch 16. The first reverse osmosis cartridge 11a has a first water inlet 111, a first water outlet 112 and a first waste water outlet 113. The booster pump 12 has a pump inlet 121 and a pump outlet 122, the pump inlet 121 is used for communicating with a water source, the pump outlet 122 is communicated with the first water inlet 111, the first waste water outlet 113 is communicated with the first waste water direct discharge pipeline Q1One end of which is communicated. The water outlet assembly 13 has a water outlet 133, a drinking water inlet 131 and a domestic water inlet 132; the drinking water inlet 131 is communicated with the first water outlet 112, and the domestic water inlet 132 is communicated with the first waste water inlet 113. The first flow limiting valve 14a is arranged on the first wastewater direct drainage pipeline Q1The first flow restriction valve 14a has a flow restriction function (in a flow restriction state, the flow rate is small, and may be 5% to 80% in a fully open state, and preferably, the flow rate may be 10% to 30% in the fully open state). The first switch valve 18a is arranged on the first wastewater direct discharge pipeline Q1Upstream of the first flow restriction valve 14a, and downstream of the first flow restriction valve 14a, the flow path between the first switching valve 18a and the first flow restriction valve 14a passes through the first branch passage P1Communicating with the pump inlet 121. The first check valve 15a is arranged on the first branch P1The first check valve 15a flows from the first waste water port 113 to the pump inlet 121. The high-pressure switch 16 is provided in a flow path between the first water outlet 112 and the drinking water inlet 131.
The flow path between the first reverse osmosis filter element 11a and the high-voltage switch 16 is communicated with the pump inlet 121 through a pure water return branch R, the pure water return branch R is provided with a second switch valve 18b and a second one-way valve 15b, and the flow path of the second one-way valve 15b flows from the first water outlet 112 to the pump inlet 121.
The utility model provides a reverse osmosis high-water-saving pure water backflow system connected with a tap. And the wastewater generated by the first reverse osmosis filter element 11a in the water purification process flows back to the front of the first reverse osmosis filter element 11a through a pipeline, is mixed with tap water and then enters the first reverse osmosis filter element 11a again for secondary filtration.
Wastewater produced by the first reverse osmosis filter element 11aExcept that before first reverse osmosis filter core 11a is flowed back through the return line, this system still links to each other first reverse osmosis filter core 11a waste water with the current kitchen tap of user's family, not only can improve the rate of utilization of space, reduce cost, still can open life tap (life water inlet 132 switches on with life water delivery port 131 b) through the user and accomplish washing to first reverse osmosis filter core 11a and waste water return line, waste water discharge supplies the life of user to use, accomplish the reutilization to waste water, satisfy ecological environmental protection's requirement. In addition, a first wastewater direct discharge pipeline Q is also arranged1And can be used for directly discharging waste water when necessary. This system has pure water backward flow branch road R simultaneously for with the water purification backward flow to first reverse osmosis filter core 11a front end, wash and the preceding raw water of first reverse osmosis filter core 11a of neutralization, there is not residual old water, first glass of water just can drink, and water quality is stable, provides pure fresh running water all the time.
The first embodiment is as follows: please refer to fig. 1. A mechanical double-water tap is added into the wastewater backflow system, the first water outlet 112 is divided into two paths, one path is directly connected with the drinking water end of the double-water tap, a third one-way valve 15c and a high-pressure switch 16 are sequentially added on the pipeline, and the other path is a pure water backflow branch R and is used for enabling pure water to flow back to the front end of the first reverse osmosis filter element 11 a; the wastewater outlet side of the first reverse osmosis filter element 11a is divided into two paths, one path is directly connected with the domestic water end of the double water taps, the other path is a wastewater return line, wastewater can flow back to the front of the booster pump 12 through the first flow limiting valve 14a, and a branch is a first wastewater direct discharge line Q on the wastewater return line1And if necessary, the method is used for directly discharging the wastewater. The first flow restriction valve 14a on the waste water return line is a valve body having a flow restriction function. First wastewater straight-line pipeline Q1The first switch valve 18a and the second switch valve 18b on the pure water return branch R are valve bodies having a full-on or full-off function; the third non return valve 15c, in combination with the high pressure switch 16, avoids frequent activation: due to the existence of the one-way valve, when the drinking water tap is closed, water is limited between the one-way valve and the tap, the water pressure is kept stable, and the high-pressure switch 16 receives a stable pressure signal and keeps an off state.
The user turns on the drinking water tap (the drinking water inlet 131 is communicated with the water outlet 133): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; after tap water flows into the first reverse osmosis filter element 11a, the tap water is divided into a path of pure water and a path of wastewater, the pure water is discharged by a drinking water faucet for drinking, the wastewater is mixed with the tap water before flowing back to the booster pump 12 through the first flow limiting valve 14a and then enters the first reverse osmosis filter element 11a again for filtration, and zero discharge of the wastewater is realized.
The user turns on the life tap (life level inlet and outlet 133 open): tap water enters the first reverse osmosis filter element 11a through the booster pump 12 (the pump is not started) and then flows out of the waste water side of the first reverse osmosis filter element 11a in two ways, one way of the tap water is directly discharged through a domestic tap in a large flow rate, and the other way of the tap water flows back to the booster pump 12 through the first flow limiting valve 14a (the flow is limited and small), is mixed with the tap water and then enters the first reverse osmosis filter element 11a again to flush the waste water side of the first reverse osmosis filter element 11 a; namely, when a user opens a living water tap (a living level water inlet is communicated with the water outlet 133), tap water with lower ion concentration can replace the waste water with high ion concentration accumulated at the waste water side of the first reverse osmosis filter element 11a, so that the problem of the first cup of water is effectively solved; moreover, as the domestic water flow is large, when passing through the first reverse osmosis filter element 11a, the water can flush out pollutants such as scale and organic matters deposited on the side surface of the wastewater of the first reverse osmosis filter element 11a, so that the scaling risk of the first reverse osmosis filter element 11a is reduced, and the service life of the first reverse osmosis filter element 11a is prolonged; meanwhile, the process can flush the wastewater return line and the first flow limiting valve 14a, so that the risk of blockage of the first flow limiting valve 14a due to scaling is reduced, and the service life of the first reverse osmosis filter element 11a is further prolonged. When the domestic faucet is opened, the waste water generated and accumulated in the water production process can be discharged through the domestic faucet for domestic water use, and the waste water utilization is realized in the true sense.
Direct discharge procedure of wastewater: when the user gets the drinking water, because the waste water backward flow, go out the increase of water TDS can along with the increase of water intaking time, consequently, after the design was got the drinking water time and is reached a definite value (preferred 1-5min) to the user, start the straight row procedure of waste water (preferred 5-300s of time), booster pump 12 keeps starting, keeps normal system water state promptly, and first ooff valve 18a opens, and the waste water that first reverse osmosis filter core 11a produced is along with the straight row pipeline Q of first waste water1And the initial level of the effluent TDS can be recovered within a short time, and the influence on the flow of the drinking water is weak.
Pure water reflux procedure: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a pure water backflow procedure (preferably for 5-300 s); when the booster pump 12 is started, the first switch valve 18a and the second switch valve 18b are opened, after tap water enters the first reverse osmosis filter element 11a, pure water returns to the booster pump 12 through the pure water return branch R, is mixed with the tap water and then enters the first reverse osmosis filter element 11a again, and raw water in front of the first reverse osmosis filter element 11a is flushed and neutralized; the wastewater flows out from the wastewater side and is directly discharged into a first wastewater straight-discharge pipeline Q1(ii) a The procedure can complete the replacement of original residual old water in the first reverse osmosis filter element 11a and the waste water pipeline, solve the problems of first cup of water and old water, has stable water quality and provides pure fresh and live water all the time. Meanwhile, the first reverse osmosis filter element 11a and the first flow limiting valve 14a are prevented from scaling, and the service life of the first reverse osmosis filter element 11a and the first flow limiting valve 14a is prolonged. Under normal conditions, the user opens life tap (life level water inlet switches on with outlet 133) and can accomplish washing to first reverse osmosis filter core 11a and waste water return line, and this procedure mainly used avoids having no use domestic water needs after the user has got the drinking water, makes the residual water be detained for a long time in first reverse osmosis filter core 11a and waste water return line, causes first glass of water and incrustation scale deposit and influences life's problem.
Example two: please refer to fig. 2. In this embodiment, a front filter 17a is added to the front end of the booster pump 12, the type of the front filter 17a may be PP, activated carbon, ultrafiltration, nanofiltration, or a composite filter of the above materials, and the water flow rate of the front filter 17a is less than 8L/min.
The user turns on the drinking water tap (the drinking water inlet 131 is communicated with the water outlet 133): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; tap water is roughly filtered by the preposed filter element 17a and then flows into the first reverse osmosis filter element 11a, and then is divided into a path of pure water and a path of waste water, the pure water is discharged by a drinking water faucet for drinking, the waste water flows back to the front of the booster pump 12 through the first flow limiting valve 14a and is mixed with the water discharged by the preposed filter element 17a to enter the first reverse osmosis filter element 11a again for secondary filtration, and zero discharge of the waste water is realized.
The user turns on the life tap (life level inlet and outlet 133 open): tap water enters the first reverse osmosis filter element 11a through the booster pump 12 (the pump is not started) and then flows out of the first reverse osmosis filter element 11a from the waste water side in two ways, one way of the tap water is directly discharged through a domestic tap with large flow, and the other way of the tap water flows back to the booster pump 12 through the first flow limiting valve 14a (with flow limitation and small flow) and then enters the first reverse osmosis filter element 11a again to flush the waste water side of the first reverse osmosis filter element 11a after being mixed with the tap water; namely, when a user opens a living water tap (a living level water inlet is communicated with the water outlet 133), tap water with lower ion concentration can replace the waste water with high ion concentration accumulated at the waste water side of the first reverse osmosis filter element 11a, so that the problem of the first cup of water is effectively solved; moreover, as the domestic water flow is large, when passing through the first reverse osmosis filter element 11a, the water can flush out pollutants such as scale and organic matters deposited on the side surface of the wastewater of the first reverse osmosis filter element 11a, so that the scaling risk of the first reverse osmosis filter element 11a is reduced, and the service life of the first reverse osmosis filter element 11a is prolonged; meanwhile, the process can flush the wastewater return line and the first flow limiting valve 14a, the risk of blockage of the first flow limiting valve 14a due to scaling is reduced, and the service life of the first reverse osmosis filter element 11a is further prolonged. When the domestic faucet is opened, the waste water generated and accumulated in the water production process can be discharged through the domestic faucet for domestic water use, and the waste water utilization is realized in the true sense.
Direct discharge procedure of wastewater: when the user gets the drinking water, because the waste water backward flow, go out the increase of water TDS can along with the increase of water intaking time, consequently, after the design was got the drinking water time and is reached a definite value (preferred 1-5min) to the user, start the straight row procedure of waste water (preferred 5-300s of time), booster pump 12 keeps starting, keeps normal system water state promptly, and first ooff valve 18a opens, and the waste water that first reverse osmosis filter core 11a produced is along with the straight row pipeline Q of first waste water1And the initial level of the effluent TDS can be recovered within a short time, and the influence on the flow of the drinking water is weak.
Pure water reflux procedure: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting the pure waterReflux procedure (time preferably 5-300 s); when the booster pump 12 is started, the first switch valve 18a and the second switch valve 18b are opened, after tap water enters the first reverse osmosis filter element 11a, pure water returns to the booster pump 12 through the pure water return branch R, is mixed with the tap water and then enters the first reverse osmosis filter element 11a again, and raw water in front of the first reverse osmosis filter element 11a is flushed and neutralized; the wastewater flows out from the wastewater side and is directly discharged into a first wastewater straight-discharge pipeline Q1(ii) a The procedure can complete the replacement of the original residual old water in the first reverse osmosis filter element 11a and the waste water pipeline, solve the problems of the first cup of water and the old water, has stable water quality and provides pure fresh and alive water all the time. Meanwhile, the first reverse osmosis filter element 11a and the first flow limiting valve 14a are prevented from scaling, and the service life of the first reverse osmosis filter element 11a and the first flow limiting valve 14a is prolonged. Under the normal condition, the user opens life tap (life level water inlet switches on with outlet 133) and can accomplish washing to first reverse osmosis filter core 11a and waste water return line, and this procedure mainly used avoids having no use life water needs again after the user got the drinking water, makes the residual water be detained in first reverse osmosis filter core 11a and waste water return line for a long time, causes first cup of water and incrustation scale deposit and influences life's problem.
Example three: please refer to fig. 3. In this embodiment, based on the first embodiment, a post-filter 17b is added to the pure water outlet pipe of the first reverse osmosis filter 11a before the return branch, and the type of the post-filter 17b may be different forms of activated carbon.
The user turns on the drinking water tap (the drinking water inlet 131 is communicated with the water outlet 133): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; tap water is divided into a path of pure water and a path of waste water after flowing into the first reverse osmosis filter element 11a, the pure water is discharged by a drinking water faucet for drinking after passing through the post-positioned filter element 17b, and the waste water is mixed with the tap water before flowing back to the booster pump 12 through the first flow limiting valve 14a and then enters the first reverse osmosis filter element 11a again for filtration, so that zero discharge of the waste water is realized.
The user turns on the life tap (life level inlet and outlet 133 open): tap water enters the first reverse osmosis filter element 11a through the booster pump 12 (the pump is not started) and then flows out of the waste water side of the first reverse osmosis filter element 11a in two ways, one way is high in flow rate and is directly discharged through a domestic water faucet, and the other way flows back to the booster pump 12 through the first flow limiting valve 14a (flow limiting and low in flow rate) and then enters the first reverse osmosis filter element 11a again to flush the waste water side of the first reverse osmosis filter element 11a after being mixed with the tap water. Namely, when a user opens a living water tap (a living level water inlet is communicated with the water outlet 133), tap water with lower ion concentration can replace the waste water with high ion concentration accumulated at the waste water side of the first reverse osmosis filter element 11a, so that the problem of the first cup of water is effectively solved; moreover, as the domestic water flow is large, when the domestic water passes through the first reverse osmosis filter element 11a, pollutants such as water scale and organic matters deposited on the side surface of the wastewater of the first reverse osmosis filter element 11a can be washed away, the scaling risk of the first reverse osmosis filter element 11a is reduced, and the service life of the first reverse osmosis filter element 11a is prolonged; meanwhile, the process can flush the wastewater return line and the first flow limiting valve 14a, the risk of blockage of the first flow limiting valve 14a due to scaling is reduced, and the service life of the first reverse osmosis filter element 11a is further prolonged. When the domestic faucet is opened, the waste water generated and accumulated in the water production process can be discharged through the domestic faucet for domestic water use, and the waste water utilization is realized in the true sense.
Direct discharge procedure of wastewater: when the user gets the drinking water, because the waste water backward flow, go out the increase of water TDS can along with the increase of water intaking time, consequently, after the design was got the drinking water time and is reached a definite value (preferred 1-5min) to the user, start the straight row procedure of waste water (preferred 5-300s of time), booster pump 12 keeps starting, keeps normal system water state promptly, and first ooff valve 18a opens, and the waste water that first reverse osmosis filter core 11a produced is along with the straight row pipeline Q of first waste water1And the initial level of the effluent TDS can be recovered within a short time, and the influence on the flow of the drinking water is weak.
Pure water reflux procedure: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a pure water backflow procedure (preferably for 5-300 s); the booster pump 12 is started, the first switch valve 18a is opened, the second switch valve 18b is opened, after tap water enters the first reverse osmosis filter element 11a, pure water passes through the post-filter element 17b, and then returns to the booster pump 12 through the pure water backflow branch R to be mixed with the tap water and enter the first reverse osmosis filter element 11a again, and the pure water is flushed and neutralized before the first reverse osmosis filter element 11aRaw water; the wastewater flows out from the wastewater side and is directly discharged into a first wastewater straight-discharge pipeline Q1(ii) a The process can complete the replacement of the original residual water in the first reverse osmosis filter element 11a, the post filter element 17b and the waste water pipeline, solve the problems of first cup of water and old water, has stable water quality and provides pure fresh water all the time; meanwhile, the first reverse osmosis filter element 11a and the first flow limiting valve 14a are prevented from scaling, and the service life of the first reverse osmosis filter element 11a and the first flow limiting valve 14a is prolonged. Under the normal condition, the user opens life tap (life level water inlet switches on with outlet 133) and can accomplish washing to first reverse osmosis filter core 11a and waste water return line, and this procedure mainly used avoids having no use life water needs again after the user got the drinking water, makes the residual water be detained in first reverse osmosis filter core 11a and waste water return line for a long time, causes first cup of water and incrustation scale deposit and influences life's problem.
Example four: please refer to fig. 4. In the embodiment, on the basis of the first embodiment, a front filter element 17a is added at the front end of the booster pump 12, and a rear filter element 17b is added on a pure water outlet pipeline of the first reverse osmosis filter element 11a and in front of a reflux branch; the type of the preposed filter element 17a can be PP with different forms, active carbon with different forms, ultrafiltration, nanofiltration, composite filter elements made of the materials and the like, and the water outlet flow of the preposed filter element 17a is less than 8L/min; the kind of the post-filter 17b may be activated carbon of different forms.
The user turns on the drinking water tap (the drinking water inlet 131 is communicated with the water outlet 133): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; tap water is coarsely filtered by the front filter element 17a and then flows into the first reverse osmosis filter element 11a, and then is divided into a path of pure water and a path of wastewater, the pure water is discharged by a drinking water faucet for drinking after passing through the rear filter element 17b, and the wastewater flows back to the front of the booster pump 12 through the first flow limiting valve 14a and is mixed with the water discharged by the front filter element 17a to enter the first reverse osmosis filter element 11a again for secondary filtration, so that zero discharge of the wastewater is realized.
The user opens the life faucet (life level inlet and outlet 133 open): tap water enters the first reverse osmosis filter element 11a through the booster pump 12 (the pump is not started) and then flows out of the waste water side of the first reverse osmosis filter element 11a in two ways, one way of the tap water is directly discharged through a domestic tap in a large flow rate, and the other way of the tap water flows back to the booster pump 12 through the first flow limiting valve 14a (the flow is limited and small), is mixed with the tap water and then enters the first reverse osmosis filter element 11a again to flush the waste water side of the first reverse osmosis filter element 11 a; namely, when a user opens a living water tap (a living level water inlet is communicated with the water outlet 133), tap water with lower ion concentration can replace the waste water with high ion concentration accumulated at the waste water side of the first reverse osmosis filter element 11a, so that the problem of the first cup of water is effectively solved; moreover, as the domestic water flow is large, when passing through the first reverse osmosis filter element 11a, the water can flush out pollutants such as scale and organic matters deposited on the side surface of the wastewater of the first reverse osmosis filter element 11a, so that the scaling risk of the first reverse osmosis filter element 11a is reduced, and the service life of the first reverse osmosis filter element 11a is prolonged; meanwhile, the process can flush the wastewater return line and the first flow limiting valve 14a, the risk of blockage of the first flow limiting valve 14a due to scaling is reduced, and the service life of the first reverse osmosis filter element 11a is further prolonged. When the domestic water tap is opened, the waste water generated and accumulated in the water making process can be discharged through the domestic water tap for domestic water use, and the waste water utilization is really realized.
Direct discharge procedure of wastewater: when the user gets the drinking water, because the waste water backward flow, go out the increase of water TDS can along with the increase of water intaking time, consequently, after the design was got the drinking water time and is reached a definite value (preferred 1-5min) to the user, start the straight row procedure of waste water (preferred 5-300s of time), booster pump 12 keeps starting, keeps normal system water state promptly, and first ooff valve 18a opens, and the waste water that first reverse osmosis filter core 11a produced is along with the straight row pipeline Q of first waste water1And after the water is discharged, the initial level of TDS of the discharged water can be recovered in a short time, and the influence on the flow of the drinking water is weak.
Pure water reflux procedure: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a pure water backflow program (preferably 5-300 s); the booster pump 12 is started, the first switch valve 18a is opened, the second switch valve 18b is opened, after tap water enters the first reverse osmosis filter element 11a, pure water passes through the post-filter element 17b, and then returns to the booster pump 12 through the pure water backflow branch R to be mixed with the tap water and then enters the first reverse osmosis filter element 11a again, and raw water in front of the first reverse osmosis filter element 11a is washed and neutralized; waste ofWater flows out from the waste water side and is directly discharged into a first waste water direct discharge pipeline Q1(ii) a The procedure can complete the replacement of the original residual water in the first reverse osmosis filter element 11a, the post filter element 17b and the waste water pipeline, solve the problems of first cup of water and old water, has stable water quality and provides pure fresh water all the time; meanwhile, the first reverse osmosis filter element 11a and the first flow limiting valve 14a are prevented from scaling, and the service life of the first reverse osmosis filter element 11a and the first flow limiting valve 14a is prolonged. Under the normal condition, the user opens life tap (life level water inlet switches on with outlet 133) and can accomplish washing to first reverse osmosis filter core 11a and waste water return line, and this procedure mainly used avoids having no use life water needs again after the user got the drinking water, makes the residual water be detained in first reverse osmosis filter core 11a and waste water return line for a long time, causes first cup of water and incrustation scale deposit and influences life's problem.
Example five: please refer to fig. 5. In the embodiment, a second reverse osmosis filter element 11b is added on the basis of the first embodiment. The second reverse osmosis filter element 11b is arranged on a flow path between the first waste water port 113 and the first flow limiting valve 14a, the second reverse osmosis filter element 11b is provided with a second water inlet 114, a second water outlet 115 and a second waste water port 116, the second water inlet 114 is communicated with the first waste water port 113, the second waste water port 116 is communicated with a water inlet end of the first flow limiting valve 14a, and the second water outlet 115 is communicated with a flow path between the first water outlet 112 and the third check valve 15 c.
The first waste water inlet 113 is connected with the second water inlet 114, the second reverse osmosis filter element 11b performs secondary filtration on the waste water of the first reverse osmosis filter element 11a, and the waste water is mixed with the tap water before flowing back to the booster pump 12 through the first flow limiting valve 14a and enters the first reverse osmosis filter element 11a again for secondary filtration.
The user turns on the drinking water tap (the drinking water inlet 131 is communicated with the water outlet 133): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; after running water flows into the first reverse osmosis filter element 11a, the running water is divided into one path of pure water and one path of wastewater, the pure water flows to the third one-way valve 15c, the wastewater flows into the second reverse osmosis filter element 11b and is subjected to secondary filtration, the pure water flows to the third one-way valve 15c and is converged with water flow from the first water outlet 112, the pure water is discharged through the drinking water faucet for drinking, the wastewater is mixed with the running water before flowing back to the booster pump 12 through the first flow limiting valve 14a and enters the first reverse osmosis filter element 11a again for filtration, and zero discharge of the wastewater is realized.
The user turns on the life tap (life level inlet and outlet 133 open): tap water enters the first reverse osmosis filter element 11a through the booster pump 12 and then flows out of the wastewater side of the first reverse osmosis filter element 11a, enters the second reverse osmosis filter element 11b and then flows out of the wastewater side of the second reverse osmosis filter element 11b in two paths, one path of the tap water is directly discharged through a domestic water faucet in a large flow rate, and the other path of the tap water flows back to the booster pump 12 through the first flow limiting valve 14a (with flow limitation and small flow rate) and then is mixed with the tap water and then enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b again to flush the wastewater sides of the two reverse osmosis filter elements; that is, when a user opens a living water faucet (a living standard water inlet and a water outlet 133 are communicated), tap water with lower ion concentration can replace wastewater with high ion concentration accumulated at the wastewater side of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, so that the problem of first cup of water is effectively solved; moreover, as the domestic water flow is large, when passing through the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, pollutants such as scale and organic matters deposited on the side surfaces of the wastewater of the two reverse osmosis filter elements can be washed away, the scaling risk of the two reverse osmosis filter elements is reduced, and the service lives of the two reverse osmosis filter elements are prolonged; meanwhile, the process can flush the wastewater return line and the first flow limiting valve 14a, the risk of blockage of the first flow limiting valve 14a due to scaling is reduced, and the service lives of the two reverse osmosis filter elements are further prolonged. When the domestic faucet is opened, the waste water generated and accumulated in the water production process can be discharged through the domestic faucet for domestic water use, and the waste water utilization is realized in the true sense.
Direct discharge procedure of wastewater: when the user gets the drinking water, because the waste water backward flow, go out the increase of water TDS can along with the increase of water intaking time, consequently, after the design was got the drinking water time and is reached a definite value (preferred 1-5min) to the user, start the straight row procedure of waste water (preferred 5-300s of time), booster pump 12 keeps starting, keeps normal system water state promptly, and first ooff valve 18a opens, and the waste water that first reverse osmosis filter core 11a produced is along with the straight row pipeline Q of first waste water1And the initial level of the effluent TDS can be recovered within a short time, and the influence on the flow of the drinking water is weak.
Pure water reflux procedure: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a pure water backflow procedure (preferably for 5-300 s); when the booster pump 12 is started, the first switch valve 18a and the second switch valve 18b are opened, tap water enters the first reverse osmosis filter element 11a and is divided into a path of pure water and a path of wastewater, the pure water flows to the third one-way valve 15c, the wastewater flows into the second reverse osmosis filter element 11b and is subjected to secondary filtration and divided into a path of pure water and a path of wastewater, and the pure water flows to the third one-way valve 15c and is converged with water flow from the first water outlet 112; the converged pure water returns to the booster pump 12 through the pure water return branch R, is mixed with tap water and then enters the two reverse osmosis filter elements again, and washes and neutralizes the raw water in front of the two reverse osmosis filter elements. The wastewater flows out from the wastewater side of the second reverse osmosis filter element 11b and is directly discharged into the first wastewater direct discharge pipeline Q1(ii) a The process can complete the replacement of original residual water in the two reverse osmosis filter elements and the waste water pipeline, solves the problems of first cup of water and old water, has stable water quality, and provides pure fresh water all the time; meanwhile, the two reverse osmosis filter elements and the first flow limiting valve 14a are prevented from scaling, and the service lives of the two reverse osmosis filter elements and the first flow limiting valve 14a are prolonged. Under the normal condition, the user opens life tap (life level water inlet and outlet 133 switch on) can accomplish two reverse osmosis filter cores and the washing of waste water return line, and this procedure mainly used avoids having no use life water needs again after the user has got the drinking water, makes the residual water be detained for a long time in two reverse osmosis filter cores and waste water return line, causes first glass of water and incrustation scale deposit and influences life's problem.
Example six: please refer to fig. 6. In this embodiment, a front filter element 17a is added to the front end of the booster pump 12, the type of the front filter element 17a may be PP with different forms, activated carbon with different forms, ultrafiltration, nanofiltration, or a composite filter element of the above materials, and the water outlet flow rate of the front filter element 17a is less than 8L/min.
The user turns on the drinking water tap (the drinking water inlet 131 is communicated with the water outlet 133): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; tap water is roughly filtered by the front filter element 17a and then flows into the first reverse osmosis filter element 11a, the tap water is divided into one path of pure water and one path of wastewater, the pure water flows to the third one-way valve 15c, the wastewater flows into the second reverse osmosis filter element 11b and is divided into one path of pure water and one path of wastewater after secondary filtration, the pure water flows to the third one-way valve 15c and is converged with water flow from the first water outlet 112, the pure water is discharged for drinking through the drinking water faucet, the wastewater flows back to the booster pump 12 through the first flow limiting valve 14a and then is mixed with the water discharged from the front filter element 17a and enters the first reverse osmosis filter element 11a again for secondary filtration, and zero wastewater discharge is realized.
The user turns on the life tap (life level inlet and outlet 133 open): tap water enters the first reverse osmosis filter element 11a through the booster pump 12 and then flows out of the wastewater side of the first reverse osmosis filter element 11a, enters the second reverse osmosis filter element 11b and then flows out of the wastewater side of the second reverse osmosis filter element 11b in two paths, one path of the tap water is directly discharged through a domestic water faucet in a large flow rate, and the other path of the tap water flows back to the booster pump 12 through the first flow limiting valve 14a (with flow limitation and small flow rate) and then is mixed with the tap water and then enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b again to flush the wastewater sides of the two reverse osmosis filter elements; namely, when a user opens a living water tap (a living water inlet and a water outlet 133 are communicated), tap water with lower ion concentration can replace the wastewater with high ion concentration accumulated at the wastewater side of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, so that the problem of the first cup of water is effectively solved; moreover, as the domestic water flow is large, when passing through the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, pollutants such as scale and organic matters deposited on the side surfaces of the wastewater of the two reverse osmosis filter elements can be washed away, the scaling risk of the two reverse osmosis filter elements is reduced, and the service lives of the two reverse osmosis filter elements are prolonged; meanwhile, the process can flush the wastewater return line and the first flow limiting valve 14a, the risk of blockage of the first flow limiting valve 14a due to scaling is reduced, and the service lives of the two reverse osmosis filter elements are further prolonged. When the domestic faucet is opened, the waste water generated and accumulated in the water production process can be discharged through the domestic faucet for domestic water use, and the waste water utilization is realized in the true sense.
Direct discharge procedure of wastewater: when the user takes drinking water, the waste water flows back to discharge waterTDS can be increased along with the increase of water taking time, therefore, after the drinking water taking time of a user reaches a certain value (preferably 1-5min), a wastewater direct discharging program is started (preferably 5-300s), the booster pump 12 keeps starting, namely, a normal water making state is kept, the first switch valve 18a is opened, and wastewater generated by the first reverse osmosis filter element 11a is directly discharged along with the first wastewater direct discharging pipeline Q1And the initial level of the effluent TDS can be recovered within a short time, and the influence on the flow of the drinking water is weak.
Pure water reflux procedure: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a pure water backflow procedure (preferably for 5-300 s); the booster pump 12 is started, the first switch valve 18a and the second switch valve 18b are opened, tap water enters the first reverse osmosis filter element 11a, and then is divided into a path of pure water and a path of wastewater, the pure water flows to the third one-way valve 15c, the wastewater flows into the second reverse osmosis filter element 11b and is subjected to secondary filtration, then is divided into a path of pure water and a path of wastewater, and the pure water flows to the third one-way valve 15c and is converged with water flow from the first water outlet 112. The converged pure water returns to the booster pump 12 through the pure water return branch R, is mixed with tap water and then enters the two reverse osmosis filter elements again, and the raw water in front of the two reverse osmosis filter elements is washed and neutralized; the wastewater flows out from the wastewater side of the second reverse osmosis filter element 11b and is directly discharged into the first wastewater direct discharge pipeline Q1(ii) a The process can complete the replacement of the original residual water in the two reverse osmosis filter elements and the waste water pipeline, solve the problems of first cup of water and old water, has stable water quality and provides pure fresh water all the time; meanwhile, the two reverse osmosis filter elements and the first flow limiting valve 14a are prevented from scaling, and the service lives of the two reverse osmosis filter elements and the first flow limiting valve 14a are prolonged. Under the normal condition, the user opens life tap (life level water inlet and outlet 133 switch on) can accomplish two reverse osmosis filter cores and the washing of waste water return line, and this procedure mainly used avoids having no use life water needs again after the user has got the drinking water, makes the residual water be detained for a long time in two reverse osmosis filter cores and waste water return line, causes first glass of water and incrustation scale deposit and influences life's problem.
Example seven: please refer to fig. 7. In this embodiment, based on the fifth embodiment, a post-filter 17b is added to the pure water outlet pipes of the first and second reverse osmosis filter elements 11a and 11b before the pure water reflux branch R, and the type of the post-filter 17b may be different forms of activated carbon.
The user turns on the drinking water tap (the drinking water inlet 131 is communicated with the water outlet 133): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; tap water is divided into a path of pure water and a path of wastewater after flowing into the first reverse osmosis filter element 11a, the pure water flows to the third one-way valve 15c, the wastewater flows into the second reverse osmosis filter element 11b and is divided into a path of pure water and a path of wastewater after secondary filtration, the pure water flows to the third one-way valve 15c and is converged with water flow from the first water outlet 112, the pure water is discharged by a drinking water faucet for drinking after passing through the rear filter element 17b, the wastewater is mixed with the tap water before flowing back to the booster pump 12 through the first flow limiting valve 14a and enters the first reverse osmosis filter element 11a again for secondary filtration, and zero discharge of the wastewater is realized.
The user opens the life faucet (life level inlet and outlet 133 open): tap water enters the first reverse osmosis filter element 11a through the booster pump 12 and then flows out of the wastewater side of the first reverse osmosis filter element 11a, enters the second reverse osmosis filter element 11b and then flows out of the wastewater side of the second reverse osmosis filter element 11b in two paths, one path of the tap water is directly discharged through a domestic water faucet in a large flow rate, and the other path of the tap water flows back to the booster pump 12 through the first flow limiting valve 14a (with flow limitation and small flow rate) and then is mixed with the tap water and then enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b again to flush the wastewater sides of the two reverse osmosis filter elements; namely, when a user opens a living water tap (a living water inlet and a water outlet 133 are communicated), tap water with lower ion concentration can replace the wastewater with high ion concentration accumulated at the wastewater side of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, so that the problem of the first cup of water is effectively solved; and because the domestic water flow is larger, when passing through the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, the domestic water can wash the two reverse osmosis filter elements and pollutants such as scale, organic matters and the like deposited on the side surface of the wastewater, reduce the scaling risk of the two reverse osmosis filter elements and prolong the service life of the two reverse osmosis filter elements; meanwhile, the process can flush the wastewater return pipeline and the first flow limiting valve 14a, the risk that the first flow limiting valve 14a is blocked due to scaling is reduced, and the service lives of the two reverse osmosis filter elements are further prolonged. When the domestic faucet is opened, the waste water generated and accumulated in the water production process can be discharged through the domestic faucet for domestic water use, and the waste water utilization is realized in the true sense.
Direct discharge procedure of wastewater: when the user gets the drinking water, because the waste water backward flow, go out the increase of water TDS can along with the increase of water intaking time, consequently, after the design was got the drinking water time and is reached a definite value (preferred 1-5min) to the user, start the straight row procedure of waste water (preferred 5-300s of time), booster pump 12 keeps starting, keeps normal system water state promptly, and first ooff valve 18a opens, and the waste water that first reverse osmosis filter core 11a produced is along with the straight row pipeline Q of first waste water1And the initial level of the effluent TDS can be recovered within a short time, and the influence on the flow of the drinking water is weak.
Pure water reflux procedure: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a pure water backflow procedure (preferably for 5-300 s); the booster pump 12 is started, the first switch valve 18a and the second switch valve 18b are opened, tap water enters the first reverse osmosis filter element 11a, and then is divided into a path of pure water and a path of wastewater, the pure water flows to the third one-way valve 15c, the wastewater flows into the second reverse osmosis filter element 11b and is subjected to secondary filtration, then is divided into a path of pure water and a path of wastewater, the pure water flows to the third one-way valve 15c, is converged with water flow from the first water outlet 112 and flows into the post-positioned filter element 17b, and then is mixed with the tap water before returning to the booster pump 12 through the pure water backflow branch R to enter the two reverse osmosis filter elements again, and raw water before flushing and neutralizing the two reverse osmosis filter elements is washed; the wastewater flows out from the wastewater side of the second reverse osmosis filter element 11b and is directly discharged into the first wastewater direct discharge pipeline Q1(ii) a The process can complete the replacement of the original residual water in the two reverse osmosis filter elements, the post filter element 17b and the waste water pipeline, solve the problems of first cup of water and old water, has stable water quality and provides pure fresh water all the time; meanwhile, the two reverse osmosis filter elements and the first flow limiting valve 14a are prevented from scaling, and the service lives of the two reverse osmosis filter elements and the first flow limiting valve 14a are prolonged. Under normal conditions, the user opens the life tap (the life level water inlet is switched on with outlet 133) and can accomplish washing to two reverse osmosis filter cores and waste water return line, and this procedure mainly used avoids no use life water needs again after the user has got the drinking water, makes the long residual water lengthThe time is retained in the two reverse osmosis filter elements and the wastewater return pipeline, so that the problem that the first cup of water and scale deposit affect the service life is caused.
Example eight: please refer to fig. 8. In the embodiment, on the basis of the fifth embodiment, a front filter element 17a is added at the front end of the booster pump 12, and a rear filter element 17b is added on a pure water outlet pipeline of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b and in front of a pure water reflux branch R; the type of the preposed filter element 17a can be PP with different forms, active carbon with different forms, ultrafiltration, nanofiltration, composite filter elements made of the materials and the like, and the water outlet flow of the preposed filter element 17a is less than 8L/min; the kind of the post-filter 17b may be activated carbon of different forms.
The user opens the drinking water faucet (the drinking water inlet 131 is communicated with the water outlet 133): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; tap water is roughly filtered by the front filter element 17a and then flows into the first reverse osmosis filter element 11a, then is divided into one path of pure water and one path of wastewater, the pure water flows to the third one-way valve 15c, the wastewater flows into the second reverse osmosis filter element 11b and is divided into one path of pure water and one path of wastewater after secondary filtration, the pure water flows to the third one-way valve 15c and is converged with water flow from the first water outlet 112, the pure water is discharged by a drinking water faucet for drinking after passing through the rear filter element 17b, the wastewater flows back to the booster pump 12 through the first flow limiting valve 14a and is mixed with the water discharged from the front filter element 17a to enter the first reverse osmosis filter element 11a again for secondary filtration, and zero discharge of the wastewater is realized.
The user turns on the life tap (life level inlet and outlet 133 open): tap water enters the first reverse osmosis filter element 11a through the booster pump 12 and then flows out of the wastewater side of the first reverse osmosis filter element 11a, enters the second reverse osmosis filter element 11b and then flows out of the wastewater side of the second reverse osmosis filter element 11b in two paths, one path of the tap water is directly discharged through a domestic water faucet in a large flow rate, and the other path of the tap water flows back to the booster pump 12 through the first flow limiting valve 14a (with flow limitation and small flow rate) and then is mixed with the tap water and then enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b again to flush the wastewater sides of the two reverse osmosis filter elements; namely, when a user opens a living water tap (a living water inlet and a water outlet 133 are communicated), tap water with lower ion concentration can replace the wastewater with high ion concentration accumulated at the wastewater side of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, so that the problem of the first cup of water is effectively solved; moreover, as the domestic water flow is large, when passing through the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, pollutants such as scale and organic matters deposited on the side surfaces of the wastewater of the two reverse osmosis filter elements can be washed away, the scaling risk of the two reverse osmosis filter elements is reduced, and the service lives of the two reverse osmosis filter elements are prolonged; meanwhile, the process can flush the wastewater return line and the first flow limiting valve 14a, the risk of blockage of the first flow limiting valve 14a due to scaling is reduced, and the service lives of the two reverse osmosis filter elements are further prolonged. When the domestic faucet is opened, the waste water generated and accumulated in the water production process can be discharged through the domestic faucet for domestic water use, and the waste water utilization is realized in the true sense.
Direct discharge procedure of wastewater: when the user gets the drinking water, because the waste water backward flow, go out the increase of water TDS can along with the increase of water intaking time, consequently, after the design was got the drinking water time and is reached a definite value (preferred 1-5min) to the user, start the straight row procedure of waste water (preferred 5-300s of time), booster pump 12 keeps starting, keeps normal system water state promptly, and first ooff valve 18a opens, and the waste water that first reverse osmosis filter core 11a produced is along with the straight row pipeline Q of first waste water1And the initial level of the effluent TDS can be recovered within a short time, and the influence on the flow of the drinking water is weak.
Pure water reflux procedure: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a pure water backflow procedure (preferably for 5-300 s); the booster pump 12 is started, the first switch valve 18a and the second switch valve 18b are opened, tap water enters the first reverse osmosis filter element 11a, and then is divided into a path of pure water and a path of wastewater, the pure water flows to the third one-way valve 15c, the wastewater flows into the second reverse osmosis filter element 11b and is subjected to secondary filtration, then is divided into a path of pure water and a path of wastewater, the pure water flows to the third one-way valve 15c, is converged with water flow from the first water outlet 112 and flows into the post-positioned filter element 17b, and then is mixed with the tap water before returning to the booster pump 12 through the pure water backflow branch R to enter the two reverse osmosis filter elements again, and raw water before flushing and neutralizing the two reverse osmosis filter elements is washed; the wastewater flows out from the wastewater side of the second reverse osmosis filter element 11b and is directly discharged into the first wastewater direct discharge pipeline Q1(ii) a The process can complete the replacement of the original residual water in the two reverse osmosis filter elements, the post filter element 17b and the waste water pipeline, solve the problems of first cup of water and old water, has stable water quality and provides pure fresh water all the time; meanwhile, the two reverse osmosis filter elements and the first flow limiting valve 14a are prevented from scaling, and the service lives of the two reverse osmosis filter elements and the first flow limiting valve 14a are prolonged. Under the normal condition, the user opens life tap (life level water inlet and outlet 133 switch on) can accomplish two reverse osmosis filter cores and the washing of waste water return line, and this procedure mainly used avoids having no use life water needs again after the user has got the drinking water, makes the residual water be detained for a long time in two reverse osmosis filter cores and waste water return line, causes first glass of water and incrustation scale deposit and influences life's problem.
Example nine: please refer to fig. 9. In this embodiment, a second reverse osmosis filter element 11b is added on the basis of the first embodiment, and is connected with the first reverse osmosis filter element 11a in parallel. The second reverse osmosis filter element 11b is provided with a second water inlet 114, a second water outlet 115 and a second waste water outlet 116, the second water inlet 114 is communicated with the pump outlet 122, and the second waste water outlet 116 and a second waste water direct discharge pipeline Q2Is communicated with the second wastewater direct discharge pipeline Q2A second current limiting valve 14b and a third switch valve 18c are arranged on the valve seat, and the second current limiting valve 14b has a current limiting function; a third on-off valve 18c is located downstream of the second limiting valve 14b, and a flow path between the third on-off valve 18c and the second limiting valve 14b passes through the second branch P2In communication with the pump inlet 121, a second branch P2A fourth check valve 15d is arranged on the first check valve 15d, and the flow direction of the fourth check valve 15d flows from the second waste water port 116 to the pump inlet 121; the second water outlet 115 communicates with the flow path between the first water outlet 112 and the third check valve 15 c.
The user opens the drinking water faucet (the drinking water inlet 131 is communicated with the water outlet 133): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; running water respectively enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, is converged after being filtered, and is discharged from a drinking water faucet for drinking; the wastewater flows back to the booster pump 12 through the first flow limiting valve 14a and the second flow limiting valve 14b, is mixed with tap water and then enters the two reverse osmosis filter elements again for secondary filtration, and zero discharge of the wastewater is realized.
The user turns on the life tap (life level inlet and outlet 133 open): tap water respectively enters a first reverse osmosis filter element 11a and a second reverse osmosis filter element 11b after passing through a booster pump 12 (the pump is not started), then respectively flows out of two paths of filter element wastewater sides, one path of the tap water is converged with a large flow rate and then directly discharged through a domestic water faucet, and the other path of the tap water flows back to the booster pump 12 through a first flow limiting valve 14a and a second flow limiting valve 14b (the flow is limited and the flow is small), and then is mixed with the tap water and then enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b again to flush the two reverse osmosis filter element wastewater sides; namely, when a user opens a living water tap (a living water inlet and a water outlet 133 are communicated), tap water with lower ion concentration can replace the wastewater with high ion concentration accumulated at the wastewater side of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, so that the problem of the first cup of water is effectively solved; moreover, as the domestic water flow is large, when passing through the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, pollutants such as scale and organic matters deposited on the side surfaces of the wastewater of the two reverse osmosis filter elements can be washed away, the scaling risk of the two reverse osmosis filter elements is reduced, and the service lives of the two reverse osmosis filter elements are prolonged; meanwhile, the process can flush the wastewater return pipeline and the first flow limiting valve 14a and the second flow limiting valve 14b, so that the risk of blockage of the two flow limiting valves due to scaling is reduced, and the service lives of the two reverse osmosis filter elements are further prolonged. When the domestic faucet is opened, the waste water generated and accumulated in the water production process can be discharged through the domestic faucet for domestic water use, and the waste water utilization is realized in the true sense.
Direct discharge procedure of wastewater: when the user got the drinking water, because the waste water backward flow, it can increase along with the increase of water intaking time to go out water TDS, consequently, after the design was got the drinking water time of user and is reached a definite value (preferred 1-5min), start the straight row procedure of waste water (preferred 5-300s of time), booster pump 12 keeps starting, keeps normal system water state promptly, first ooff valve 18a and third ooff valve 18c open, the waste water that two reverse osmosis filter core produced is discharged along with two straight row pipelines of waste water, can resume initial level in the play water TDS short time, and it is less to drinking water flux influence.
Pure water reflux procedure: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a pure water backflow procedure (preferably for 5-300 s); starting the booster pump 12, opening a first switch valve 18a, a second switch valve 18b and a third switch valve 18c, enabling tap water to respectively enter a first reverse osmosis filter element 11a and a second reverse osmosis filter element 11b, filtering and converging the tap water, returning the tap water to the booster pump 12 through a pure water backflow branch R, mixing the tap water with the tap water, and then enabling the mixed tap water to enter the two reverse osmosis filter elements again to flush and neutralize the raw water in front of the two reverse osmosis filter elements; the waste water of the two filter elements is directly discharged into two waste water direct discharge pipelines; the process can complete the replacement of original residual water in the two reverse osmosis filter elements and the waste water pipeline, solves the problems of first cup of water and old water, has stable water quality, and provides pure fresh water all the time; meanwhile, the two reverse osmosis filter cores and the first flow limiting valve 14a and the second flow limiting valve 14b are prevented from scaling, and the service lives of the two reverse osmosis filter cores and the two flow limiting valves are prolonged. Under the normal condition, the user opens life tap (life level water inlet and outlet 133 switch on) can accomplish two reverse osmosis filter cores and the washing of waste water return line, and this procedure mainly used avoids having no use life water needs again after the user has got the drinking water, makes the residual water be detained for a long time in two reverse osmosis filter cores and waste water return line, causes first glass of water and incrustation scale deposit and influences life's problem.
For this embodiment, it should be noted that the first branch P is1And a second branch P2All set up restriction valve and check valve on, played the regulatory action for the waste water recovery rate of two reverse osmosis filter cores improves by a wide margin, and the flux of two reverse osmosis filter cores can be greater than 2 times's the flux of single reverse osmosis filter core under the combined action.
Example ten: please refer to fig. 10. In this embodiment, on the basis of the ninth embodiment, a pre-filter 17a is added to the front end of the booster pump 12; the type of the preposed filter element 17a can be PP with different forms, active carbon with different forms, ultrafiltration, nanofiltration, composite filter elements made of the materials and the like, and the water outlet flow of the preposed filter element 17a is less than 8L/min.
The user turns on the drinking water tap (the drinking water inlet 131 is communicated with the water outlet 133): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; the tap water is coarsely filtered by the preposed filter element 17a, then respectively enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, is converged after being filtered, and is discharged by the drinking faucet for drinking; the wastewater flows back to the booster pump 12 through the first flow limiting valve 14a and the second flow limiting valve 14b, is mixed with the effluent of the front filter element 17a, and then enters the two reverse osmosis filter elements again for secondary filtration, so that zero discharge of the wastewater is realized.
The user turns on the life tap (life level inlet and outlet 133 open): tap water respectively enters a first reverse osmosis filter element 11a and a second reverse osmosis filter element 11b after passing through a booster pump 12 (the pump is not started), then respectively flows out of two paths of filter element wastewater sides, one path of the tap water is converged with a large flow rate and then directly discharged through a domestic water faucet, and the other path of the tap water flows back to the booster pump 12 through a first flow limiting valve 14a and a second flow limiting valve 14b (the flow is limited and the flow is small), and then is mixed with the tap water and then enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b again to flush the two reverse osmosis filter element wastewater sides; that is, when a user opens a living water faucet (a living standard water inlet and a water outlet 133 are communicated), tap water with lower ion concentration can replace wastewater with high ion concentration accumulated at the wastewater side of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, so that the problem of first cup of water is effectively solved; moreover, as the domestic water flow is large, when passing through the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, pollutants such as scale and organic matters deposited on the side surfaces of the wastewater of the two reverse osmosis filter elements can be washed away, the scaling risk of the two reverse osmosis filter elements is reduced, and the service lives of the two reverse osmosis filter elements are prolonged; meanwhile, the process can flush the wastewater return pipeline and the first flow limiting valve 14a and the second flow limiting valve 14b, so that the risk of blockage of the two flow limiting valves due to scaling is reduced, and the service lives of the two reverse osmosis filter elements are further prolonged. When the domestic faucet is opened, the waste water generated and accumulated in the water production process can be discharged through the domestic faucet for domestic water use, and the waste water utilization is realized in the true sense.
Direct discharge procedure of wastewater: when the user got the drinking water, because the waste water backward flow, it can increase along with the increase of water intaking time to go out water TDS, consequently, after the design was got the drinking water time of user and is reached a definite value (preferred 1-5min), start the straight row procedure of waste water (preferred 5-300s of time), booster pump 12 keeps starting, keeps normal system water state promptly, first ooff valve 18a and third ooff valve 18c open, the waste water that two reverse osmosis filter core produced is discharged along with two straight row pipelines of waste water, can resume initial level in the play water TDS short time, and it is less to drinking water flux influence.
Pure water reflux procedure: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a pure water backflow procedure (preferably for 5-300 s); starting the booster pump 12, opening a first switch valve 18a, a second switch valve 18b and a third switch valve 18c, enabling tap water to respectively enter a first reverse osmosis filter element 11a and a second reverse osmosis filter element 11b, filtering and converging the tap water, returning the tap water to the booster pump 12 through a pure water backflow branch R, mixing the tap water with the tap water, and then enabling the mixed tap water to enter the two reverse osmosis filter elements again to flush and neutralize the raw water in front of the two reverse osmosis filter elements; the waste water of the two filter elements is directly discharged into two waste water direct discharge pipelines; the process can complete the replacement of original residual water in the two reverse osmosis filter elements and the waste water pipeline, solves the problems of first cup of water and old water, has stable water quality, and provides pure fresh water all the time; meanwhile, the two reverse osmosis filter cores and the first flow limiting valve 14a and the second flow limiting valve 14b are prevented from scaling, and the service lives of the two reverse osmosis filter cores and the two flow limiting valves are prolonged. Under the normal condition, the user opens life tap (life level water inlet and outlet 133 switch on) can accomplish two reverse osmosis filter cores and the washing of waste water return line, and this procedure mainly used avoids having no use life water needs again after the user has got the drinking water, makes the residual water be detained for a long time in two reverse osmosis filter cores and waste water return line, causes first glass of water and incrustation scale deposit and influences life's problem.
Example eleven: please refer to fig. 11. In this embodiment, on the basis of the ninth embodiment, a post-filter element 17b is added to a pure water outlet water converging pipeline of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b before a pure water reflux branch R; the kind of the post-filter 17b may be activated carbon of different forms.
The user turns on the drinking water tap (the drinking water inlet 131 is communicated with the water outlet 133): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; running water respectively enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, is filtered and then is converged, and is discharged by a drinking water tap for drinking after passing through the post-positioned filter element 17 b; the wastewater flows back to the booster pump 12 through the first flow limiting valve 14a and the second flow limiting valve 14b, is mixed with tap water and then enters the two reverse osmosis filter elements again for secondary filtration, and zero discharge of the wastewater is realized.
The user opens the life faucet (life level inlet and outlet 133 open): tap water respectively enters a first reverse osmosis filter element 11a and a second reverse osmosis filter element 11b after passing through a booster pump 12 (the pump is not started), then respectively flows out of two paths of filter element wastewater sides, one path of the tap water is converged with a large flow rate and then directly discharged through a domestic water faucet, and the other path of the tap water flows back to the booster pump 12 through a first flow limiting valve 14a and a second flow limiting valve 14b (the flow is limited and the flow is small), and then is mixed with the tap water and then enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b again to flush the two reverse osmosis filter element wastewater sides; namely, when a user opens a living water tap (a living water inlet and a water outlet 133 are communicated), tap water with lower ion concentration can replace the wastewater with high ion concentration accumulated at the wastewater side of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, so that the problem of the first cup of water is effectively solved; moreover, as the domestic water flow is large, when passing through the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, pollutants such as scale and organic matters deposited on the side surfaces of the wastewater of the two reverse osmosis filter elements can be washed away, the scaling risk of the two reverse osmosis filter elements is reduced, and the service lives of the two reverse osmosis filter elements are prolonged; meanwhile, the process can flush the wastewater return pipeline and the first flow limiting valve 14a and the second flow limiting valve 14b, so that the risk of blockage of the two flow limiting valves due to scaling is reduced, and the service lives of the two reverse osmosis filter elements are further prolonged. When the domestic faucet is opened, the waste water generated and accumulated in the water production process can be discharged through the domestic faucet for domestic water use, and the waste water utilization is realized in the true sense.
Direct discharge procedure of wastewater: when the user got the drinking water, because the waste water backward flow, it can increase along with the increase of water intaking time to go out water TDS, consequently, after the design was got the drinking water time of user and is reached a definite value (preferred 1-5min), start the straight row procedure of waste water (preferred 5-300s of time), booster pump 12 keeps starting, keeps normal system water state promptly, first ooff valve 18a and third ooff valve 18c open, the waste water that two reverse osmosis filter core produced is discharged along with two straight row pipelines of waste water, can resume initial level in the play water TDS short time, and it is less to drinking water flux influence.
Pure water reflux procedure: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a pure water backflow program (preferably 5-300 s); when the booster pump 12 is started, the first switch valve 18a, the second switch valve 18b and the third switch valve 18c are opened, tap water respectively enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, is filtered and then is converged, returns to the booster pump 12 through the pure water backflow branch R, is mixed with the tap water and then enters the two reverse osmosis filter elements again, and washes and neutralizes the raw water in front of the two reverse osmosis filter elements; the waste water of the two filter elements is directly discharged into two waste water direct discharge pipelines; the process can complete the replacement of the original residual water in the two reverse osmosis filter elements, the post filter element 17b and the waste water pipeline, solve the problems of first cup of water and old water, has stable water quality and provides pure fresh water all the time; meanwhile, the two reverse osmosis filter cores and the first flow limiting valve 14a and the second flow limiting valve 14b are prevented from scaling, and the service lives of the two reverse osmosis filter cores and the two flow limiting valves are prolonged. Under the normal condition, the user opens life tap (life level water inlet and outlet 133 switch on) can accomplish two reverse osmosis filter cores and the washing of waste water return line, and this procedure mainly used avoids having no use life water needs again after the user has got the drinking water, makes the residual water be detained for a long time in two reverse osmosis filter cores and waste water return line, causes first glass of water and incrustation scale deposit and influences life's problem.
Example twelve: please refer to fig. 12. In this embodiment, on the basis of the ninth embodiment, a front filter element 17a is added at the front end of the booster pump 12, and a rear filter element 17b is added on the pure water outlet merging pipeline of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b and in front of the pure water backflow branch R; the type of the preposed filter element 17a can be PP with different forms, active carbon with different forms, ultrafiltration, nanofiltration, composite filter elements made of the materials and the like, and the water outlet flow of the preposed filter element 17a is less than 8L/min; the kind of the post-filter 17b may be activated carbon of different forms.
The user opens the drinking water faucet (the drinking water inlet 131 is communicated with the water outlet 133): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; tap water is coarsely filtered by the preposed filter element 17a, then respectively enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, is converged after being filtered, and is discharged by the drinking water faucet for drinking after passing through the postposition filter element 17 b; the wastewater flows back to the booster pump 12 through the first flow limiting valve 14a and the second flow limiting valve 14b, is mixed with the effluent of the front filter element 17a, and then enters the two reverse osmosis filter elements again for secondary filtration, so that zero discharge of the wastewater is realized.
The user turns on the life tap (life level inlet and outlet 133 open): tap water respectively enters a first reverse osmosis filter element 11a and a second reverse osmosis filter element 11b after passing through a booster pump 12 (the pump is not started), then respectively flows out of two paths of filter element wastewater sides, one path of the tap water is converged with a large flow rate and then directly discharged through a domestic water faucet, and the other path of the tap water flows back to the booster pump 12 through a first flow limiting valve 14a and a second flow limiting valve 14b (the flow is limited and the flow is small), and then is mixed with the tap water and then enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b again to flush the two reverse osmosis filter element wastewater sides; namely, when a user opens a living water tap (a living water inlet and a water outlet 133 are communicated), tap water with lower ion concentration can replace the wastewater with high ion concentration accumulated at the wastewater side of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, so that the problem of the first cup of water is effectively solved; moreover, as the domestic water flow is large, when passing through the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, pollutants such as scale and organic matters deposited on the side surfaces of the wastewater of the two reverse osmosis filter elements can be washed away, the scaling risk of the two reverse osmosis filter elements is reduced, and the service lives of the two reverse osmosis filter elements are prolonged; meanwhile, the process can flush the wastewater return pipeline and the first flow limiting valve 14a and the second flow limiting valve 14b, so that the risk of blockage of the two flow limiting valves due to scaling is reduced, and the service lives of the two reverse osmosis filter elements are further prolonged. When the domestic faucet is opened, the waste water generated and accumulated in the water production process can be discharged through the domestic faucet for domestic water use, and the waste water utilization is realized in the true sense.
Direct discharge procedure of wastewater: when the user got the drinking water, because the waste water backward flow, it can increase along with the increase of water intaking time to go out water TDS, consequently, after the design was got the drinking water time of user and is reached a definite value (preferred 1-5min), start the straight row procedure of waste water (preferred 5-300s of time), booster pump 12 keeps starting, keeps normal system water state promptly, first ooff valve 18a and third ooff valve 18c open, the waste water that two reverse osmosis filter core produced is discharged along with two straight row pipelines of waste water, can resume initial level in the play water TDS short time, and it is less to drinking water flux influence.
Pure water reflux procedure: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a pure water backflow program (preferably 5-300 s); when the booster pump 12 is started, the first switch valve 18a, the second switch valve 18b and the third switch valve 18c are opened, tap water respectively enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, is filtered and then is converged, returns to the booster pump 12 through the pure water backflow branch R, is mixed with the tap water and then enters the two reverse osmosis filter elements again, and washes and neutralizes the raw water in front of the two reverse osmosis filter elements; the waste water of the two filter elements is directly discharged into two waste water direct discharge pipelines; the process can complete the replacement of the original residual water in the two reverse osmosis filter elements, the post filter element 17b and the waste water pipeline, solve the problems of first cup of water and old water, has stable water quality and provides pure fresh water all the time; meanwhile, the two reverse osmosis filter cores and the first flow limiting valve 14a and the second flow limiting valve 14b are prevented from scaling, and the service lives of the two reverse osmosis filter cores and the two flow limiting valves are prolonged. Under the normal condition, the user opens life tap (life level water inlet and outlet 133 switch on) can accomplish two reverse osmosis filter cores and the washing of waste water return line, and this procedure mainly used avoids having no use life water needs again after the user has got the drinking water, makes the residual water be detained for a long time in two reverse osmosis filter cores and waste water return line, causes first glass of water and incrustation scale deposit and influences life's problem.
Example thirteen: please refer to fig. 13. A mechanical drinking water faucet is added into the wastewater backflow system, the pure water outlet side of the first reverse osmosis filter element 11a is divided into two paths, one path is directly connected with the drinking water faucet, a third one-way valve 15c and a high-pressure switch 16 are sequentially added on the pipeline, and the other path is a pure water backflow branch R for enabling the pure water to flow back to the first reverse osmosis branchThe front end of the filter element 11 a; the waste water outlet side of the first reverse osmosis filter element 11a is divided into two paths, one path is directly connected with the existing kitchen faucet of a user house, the other path is a waste water return line, waste water can flow back to the front of the booster pump 12 through the first flow limiting valve 14a, and a branch is a first waste water direct discharge line Q on the waste water return line1And if necessary, the method is used for directly discharging the wastewater. The first flow limiting valve 14a on the waste water return pipeline is a valve body with a flow limiting function; first wastewater straight-line pipeline Q1The first switch valve 18a and the second switch valve 18b on the pure water return branch R are valve bodies having a full-on or full-off function; the third non return valve 15c, in combination with the high pressure switch 16, avoids frequent activation: due to the third check valve 15c, when the drinking water tap is closed, water is confined between the third check valve 15c and the tap, the water pressure is kept stable, and the high-pressure switch 16 receives a stable pressure signal and keeps an off state.
The user turns on the drinking water tap (the drinking water inlet 131 is communicated with the drinking water outlet 131 a): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; after tap water flows into the first reverse osmosis filter element 11a, the tap water is divided into a path of pure water and a path of wastewater, the pure water is discharged by a drinking water faucet for drinking, the wastewater is mixed with the tap water before flowing back to the booster pump 12 through the first flow limiting valve 14a and then enters the first reverse osmosis filter element 11a again for filtration, and zero discharge of the wastewater is realized.
The user turns on the life faucet (the life water inlet 132 is communicated with the life water outlet 131 b): tap water enters the first reverse osmosis filter element 11a through the booster pump 12 (the pump is not started) and then flows out of the waste water side of the first reverse osmosis filter element 11a in two ways, one way of the tap water is directly discharged through a tap water tap, and the other way of the tap water flows back to the booster pump 12 through the first flow limiting valve 14a (the flow is limited and small), is mixed with the tap water and then enters the first reverse osmosis filter element 11a again to flush the waste water side of the first reverse osmosis filter element 11 a; that is, when the user opens the living water faucet (the living water inlet 132 is communicated with the living water outlet 131 b), the tap water with lower ion concentration can replace the waste water with high ion concentration accumulated on the waste water side of the first reverse osmosis filter element 11a, thereby effectively solving the problem of the first cup of water. Moreover, as the flow rate of tap water is large, when the tap water passes through the first reverse osmosis filter element 11a, pollutants such as scale and organic matters deposited on the side surface of the wastewater of the first reverse osmosis filter element 11a can be washed away, the scaling risk of the first reverse osmosis filter element 11a is reduced, and the service life of the first reverse osmosis filter element 11a is prolonged; meanwhile, the process can flush the wastewater return line and the first flow limiting valve 14a, the risk of blockage of the first flow limiting valve 14a due to scaling is reduced, and the service life of the first reverse osmosis filter element 11a is further prolonged. When the tap is opened, the waste water generated and accumulated in the water making process can be discharged through the tap for domestic water use, and the waste water utilization is realized in a real sense.
Direct discharge procedure of wastewater: when the user gets the drinking water, because the waste water backward flow, go out the increase of water TDS can along with the increase of water intaking time, consequently, after the design was got the drinking water time and is reached a definite value (preferred 1-5min) to the user, start the straight row procedure of waste water (preferred 5-300s of time), booster pump 12 keeps starting, keeps normal system water state promptly, and first ooff valve 18a opens, and the waste water that first reverse osmosis filter core 11a produced is along with the straight row pipeline Q of first waste water1And the initial level of the effluent TDS can be recovered within a short time, and the influence on the flow of the drinking water is weak.
Pure water reflux procedure: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a pure water backflow procedure (preferably for 5-300 s); when the booster pump 12 is started, the first switch valve 18a and the second switch valve 18b are opened, after tap water enters the first reverse osmosis filter element 11a, pure water returns to the booster pump 12 through the pure water return branch R, is mixed with the tap water and then enters the first reverse osmosis filter element 11a again, and raw water in front of the first reverse osmosis filter element 11a is flushed and neutralized; the wastewater flows out from the wastewater side and is directly discharged into a first wastewater straight-discharge pipeline Q1(ii) a The procedure can complete the replacement of the original residual old water in the first reverse osmosis filter element 11a and the waste water pipeline, solve the problems of the first cup of water and the old water, has stable water quality and provides pure fresh and alive water all the time; meanwhile, the first reverse osmosis filter element 11a and the first flow limiting valve 14a are prevented from scaling, and the service life of the first reverse osmosis filter element 11a and the first flow limiting valve 14a is prolonged. Under normal conditions, the user can open the life tap (the life level inlet and outlet 133 is connected) to flush the first reverse osmosis filter element 11a and the wastewater return lineThis procedure mainly used avoids having no use life water needs again after the user has got the drinking water, makes the residual water be detained in first reverse osmosis filter core 11a and return line for a long time, causes first glass of water and incrustation scale deposit and influences life's problem.
Example fourteen: please refer to fig. 14. In the embodiment, on the basis of the first embodiment, a large-flux front-mounted filter element 17a is added at the front end of the booster pump 12, the type of the front-mounted filter element 17a can be PP in different forms, activated carbon in different forms, ultrafiltration, nanofiltration, composite filter elements made of the materials and the like, the large-flux specification is adopted, the water outlet flow of the front-mounted filter element 17a is not less than 8L/min, and the kitchen water is not limited and is equal to tap water.
The user turns on the drinking water tap (the drinking water inlet 131 is communicated with the drinking water outlet 131 a): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; tap water is roughly filtered by the large-flux preposed filter element 17a and flows into the first reverse osmosis filter element 11a, then is divided into a path of pure water and a path of wastewater, the pure water is discharged by a drinking water faucet for drinking, the wastewater flows back to the front of the booster pump 12 through the first flow limiting valve 14a and is mixed with the water discharged by the large-flux preposed filter element 17a to enter the first reverse osmosis filter element 11a again for secondary filtration, and zero discharge of the wastewater is realized.
The user turns on the life tap (the life water inlet 132 is communicated with the life water outlet 131 b): tap water enters the first reverse osmosis filter element 11a through the booster pump 12 (the pump is not started) and then flows out of the waste water side of the first reverse osmosis filter element 11a in two ways, one way of the tap water is directly discharged through a tap water tap, and the other way of the tap water flows back to the booster pump 12 through the first flow limiting valve 14a (the flow is limited and small), is mixed with the tap water and then enters the first reverse osmosis filter element 11a again to flush the waste water side of the first reverse osmosis filter element 11 a; that is, when the user opens the living water faucet (the living water inlet 132 is communicated with the living water outlet 131 b), the tap water with lower ion concentration can replace the waste water with high ion concentration accumulated on the waste water side of the first reverse osmosis filter element 11a, thereby effectively solving the problem of the first cup of water. Moreover, as the flow rate of tap water is large, when the tap water passes through the first reverse osmosis filter element 11a, pollutants such as scale and organic matters deposited on the side surface of the wastewater of the first reverse osmosis filter element 11a can be washed away, the scaling risk of the first reverse osmosis filter element 11a is reduced, and the service life of the first reverse osmosis filter element 11a is prolonged; meanwhile, the process can flush the wastewater return line and the first flow limiting valve 14a, the risk of blockage of the first flow limiting valve 14a due to scaling is reduced, and the service life of the first reverse osmosis filter element 11a is further prolonged. When the tap is opened, the waste water generated and accumulated in the water making process can be discharged through the tap for domestic water use, and the waste water utilization is realized in a real sense.
Direct discharge procedure of wastewater: when the user gets the drinking water, because the waste water backward flow, go out the increase of water TDS can along with the increase of water intaking time, consequently, after the design was got the drinking water time and is reached a definite value (preferred 1-5min) to the user, start the straight row procedure of waste water (preferred 5-300s of time), booster pump 12 keeps starting, keeps normal system water state promptly, and first ooff valve 18a opens, and the waste water that first reverse osmosis filter core 11a produced is along with the straight row pipeline Q of first waste water1And the initial level of the effluent TDS can be recovered within a short time, and the influence on the flow of the drinking water is weak.
Pure water reflux procedure: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a pure water backflow procedure (preferably for 5-300 s); when the booster pump 12 is started, the first switch valve 18a and the second switch valve 18b are opened, after tap water enters the first reverse osmosis filter element 11a, pure water returns to the booster pump 12 through the pure water return branch R, is mixed with the tap water and then enters the first reverse osmosis filter element 11a again, and raw water in front of the first reverse osmosis filter element 11a is flushed and neutralized; the wastewater flows out from the wastewater side and is directly discharged into a first wastewater straight-discharge pipeline Q1(ii) a The procedure can complete the replacement of original residual old water in the first reverse osmosis filter element 11a and the waste water pipeline, solve the problems of first cup of water and old water, has stable water quality and provides pure fresh water all the time; meanwhile, the first reverse osmosis filter element 11a and the first flow limiting valve 14a are prevented from scaling, and the service life of the first reverse osmosis filter element 11a and the first flow limiting valve 14a is prolonged. Under normal conditions, the user opens the life tap (the life level water inlet is led to with outlet 133) and can accomplish the washing to first reverse osmosis filter core 11a and waste water return line, and this procedure mainly used avoids no use life water needs again after the user finishes getting the drinking water, makes the residual water be detained in the second for a long timeA reverse osmosis filter element 11a and a waste water return line cause the problem that the first cup of water and scale deposit to affect the service life.
Example fifteen: please refer to fig. 15. In this embodiment, based on the first embodiment, a post-filter 17b is added to the pure water outlet pipe of the first reverse osmosis filter 11a before the return branch, and the type of the post-filter 17b may be different forms of activated carbon.
The user turns on the drinking water tap (the drinking water inlet 131 is communicated with the drinking water outlet 131 a): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; tap water is divided into a path of pure water and a path of waste water after flowing into the first reverse osmosis filter element 11a, the pure water is discharged by a drinking water faucet for drinking after passing through the post-positioned filter element 17b, and the waste water is mixed with the tap water before flowing back to the booster pump 12 through the first flow limiting valve 14a and then enters the first reverse osmosis filter element 11a again for filtration, so that zero discharge of the waste water is realized.
The user turns on the life tap (the life water inlet 132 is communicated with the life water outlet 131 b): running water enters the first reverse osmosis filter element 11a through the booster pump 12 (the pump is not started) and then flows out of the waste water side of the first reverse osmosis filter element 11a in two ways, one way of the running water is directly discharged through a running water faucet, the other way of the running water flows back to the booster pump 12 through the first flow limiting valve 14a (the flow is limited and small), and then the running water is mixed with the running water and then enters the first reverse osmosis filter element 11a again to flush the waste water side of the first reverse osmosis filter element 11 a; that is, when the user opens the living water faucet (the living water inlet 132 is communicated with the living water outlet 131 b), the tap water with lower ion concentration can replace the waste water with high ion concentration accumulated on the waste water side of the first reverse osmosis filter element 11a, thereby effectively solving the problem of the first cup of water. Moreover, as the flow rate of tap water is large, when the tap water passes through the first reverse osmosis filter element 11a, pollutants such as scale and organic matters deposited on the side surface of the wastewater of the first reverse osmosis filter element 11a can be washed away, the scaling risk of the first reverse osmosis filter element 11a is reduced, and the service life of the first reverse osmosis filter element 11a is prolonged; meanwhile, the process can flush the wastewater return line and the first flow limiting valve 14a, the risk of blockage of the first flow limiting valve 14a due to scaling is reduced, and the service life of the first reverse osmosis filter element 11a is further prolonged. When the tap is opened, the waste water generated and accumulated in the water making process can be discharged through the tap for domestic water, so that the waste water utilization is realized in a real sense.
Direct discharge procedure of wastewater: when the user gets the drinking water, because the waste water backward flow, go out the increase of water TDS can along with the increase of water intaking time, consequently, after the design was got the drinking water time and is reached a definite value (preferred 1-5min) to the user, start the straight row procedure of waste water (preferred 5-300s of time), booster pump 12 keeps starting, keeps normal system water state promptly, and first ooff valve 18a opens, and the waste water that first reverse osmosis filter core 11a produced is along with the straight row pipeline Q of first waste water1And the initial level of the effluent TDS can be recovered within a short time, and the influence on the flow of the drinking water is weak.
Pure water reflux procedure: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a pure water backflow procedure (preferably for 5-300 s); the booster pump 12 is started, the first switch valve 18a and the second switch valve 18b are opened, after tap water enters the first reverse osmosis filter element 11a, pure water passes through the post-positioned filter element 17b, and then returns to the booster pump 12 through the pure water backflow branch R to be mixed with the tap water and then enters the first reverse osmosis filter element 11a again, and raw water in front of the first reverse osmosis filter element 11a is washed and neutralized; the wastewater flows out from the wastewater side and is directly discharged into a first wastewater straight-discharge pipeline Q1(ii) a The process can complete the replacement of the original residual water in the first reverse osmosis filter element 11a, the post filter element 17b and the waste water pipeline, solve the problems of first cup of water and old water, has stable water quality and provides pure fresh water all the time; meanwhile, the first reverse osmosis filter element 11a and the first flow limiting valve 14a are prevented from scaling, and the service life of the first reverse osmosis filter element 11a and the first flow limiting valve 14a is prolonged. Under the normal condition, the user opens life tap (life level water inlet switches on with outlet 133) and can accomplish washing to first reverse osmosis filter core 11a and waste water return line, and this procedure mainly used avoids having no use life water needs again after the user got the drinking water, makes the residual water be detained in first reverse osmosis filter core 11a and waste water return line for a long time, causes first cup of water and incrustation scale deposit and influences life's problem.
Example sixteen: please refer to fig. 16. In the embodiment, on the basis of the first embodiment, a large-flux front filter element 17a is added at the front end of the booster pump 12, and a rear filter element 17b is added on a pure water outlet pipeline of the first reverse osmosis filter element 11a and in front of a reflux branch; the type of the preposed filter element 17a can be PP with different forms, active carbon with different forms, ultrafiltration, nanofiltration, composite filter elements made of the materials and the like, the preposed filter element 17a adopts a large flux specification, the water outlet flow is more than or equal to 8L/min, and kitchen water is not limited and is equal to tap water; the kind of the post-filter 17b may be activated carbon of different forms.
The user turns on the drinking water tap (the drinking water inlet 131 is communicated with the drinking water outlet 131 a): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; tap water is roughly filtered by the large-flux preposed filter element 17a and flows into the first reverse osmosis filter element 11a, then is divided into a path of pure water and a path of wastewater, the pure water is discharged by a drinking water faucet for drinking after passing through the postposition filter element 17b, and the wastewater flows back to the booster pump 12 through the first flow limiting valve 14a and is mixed with the water discharged by the large-flux preposed filter element 17a to enter the first reverse osmosis filter element 11a again for secondary filtration, so that zero discharge of the wastewater is realized.
The user turns on the life tap (the life water inlet 132 is communicated with the life water outlet 131 b): tap water enters the first reverse osmosis filter element 11a through the booster pump 12 (the pump is not started) and then flows out of the waste water side of the first reverse osmosis filter element 11a in two ways, one way of the tap water is directly discharged through a tap water tap, and the other way of the tap water flows back to the booster pump 12 through the first flow limiting valve 14a (the flow is limited and small), is mixed with the tap water and then enters the first reverse osmosis filter element 11a again to flush the waste water side of the first reverse osmosis filter element 11 a; that is, when the user opens the living water faucet (the living water inlet 132 is communicated with the living water outlet 131 b), the tap water with lower ion concentration can replace the waste water with high ion concentration accumulated on the waste water side of the first reverse osmosis filter element 11a, thereby effectively solving the problem of the first cup of water. Moreover, as the flow rate of tap water is large, when the tap water passes through the first reverse osmosis filter element 11a, pollutants such as scale and organic matters deposited on the side surface of the wastewater of the first reverse osmosis filter element 11a can be washed away, the scaling risk of the first reverse osmosis filter element 11a is reduced, and the service life of the first reverse osmosis filter element 11a is prolonged; meanwhile, the process can flush the wastewater return line and the first flow limiting valve 14a, the risk of blockage of the first flow limiting valve 14a due to scaling is reduced, and the service life of the first reverse osmosis filter element 11a is further prolonged. When the tap is opened, the waste water generated and accumulated in the water making process can be discharged through the tap for domestic water, so that the waste water utilization is realized in a real sense.
Direct discharge procedure of wastewater: when a user takes drinking water, because the waste water reflows, the TDS (total dissolved solids) of the outlet water can be increased along with the increase of the water taking time, therefore, after the drinking water taking time of the user reaches a certain value (preferably 1-5min), a waste water direct discharging program is started (preferably 5-300s), the booster pump 12 is started, namely, a normal water making state is kept, the first switch valve 18a is opened, and the waste water generated by the first reverse osmosis filter element 11a is directly discharged along with the first waste water direct discharging pipeline Q1And the initial level of the effluent TDS can be recovered within a short time, and the influence on the flow of the drinking water is weak.
Pure water reflux procedure: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a pure water backflow procedure (preferably for 5-300 s); the booster pump 12 is started, the first switch valve 18a and the second switch valve 18b are opened, after tap water enters the first reverse osmosis filter element 11a, pure water passes through the post-positioned filter element 17b, and then returns to the booster pump 12 through the pure water backflow branch R to be mixed with the tap water and then enters the first reverse osmosis filter element 11a again, and raw water in front of the first reverse osmosis filter element 11a is washed and neutralized; the wastewater flows out from the wastewater side and is directly discharged into a first wastewater straight-discharge pipeline Q1(ii) a The process can complete the replacement of the original residual water in the first reverse osmosis filter element 11a, the post filter element 17b and the waste water pipeline, solve the problems of first cup of water and old water, has stable water quality and provides pure fresh water all the time; meanwhile, the first reverse osmosis filter element 11a and the first flow limiting valve 14a are prevented from scaling, and the service life of the first reverse osmosis filter element 11a and the first flow limiting valve 14a is prolonged. Under the normal condition, the user opens life tap (life level water inlet switches on with outlet 133) and can accomplish washing to first reverse osmosis filter core 11a and waste water return line, and this procedure mainly used avoids having no use life water needs again after the user got the drinking water, makes the residual water be detained in first reverse osmosis filter core 11a and waste water return line for a long time, causes first cup of water and incrustation scale deposit and influences life's problem.
Example seventeen: please refer to fig. 17. In this embodiment, a second reverse osmosis filter element 11b is added on the basis of the first embodiment. The second reverse osmosis filter element 11b is arranged on a flow path between the first waste water port 113 and the first flow limiting valve 14a, the second reverse osmosis filter element 11b is provided with a second water inlet 114, a second water outlet 115 and a second waste water port 116, the second water inlet 114 is communicated with the first waste water port 113, the second waste water port 116 is communicated with a water inlet end of the first flow limiting valve 14a, and the second water outlet 115 is communicated with a flow path between the first water outlet 112 and the third check valve 15 c. The water outlet assembly 13 includes a drinking water outlet assembly 13a and a domestic water outlet assembly 13b which are independent of each other, the drinking water outlet assembly 13a has a drinking water inlet 131, the domestic water outlet assembly 13b has a domestic water inlet 132, and the water outlet 133 includes a drinking water outlet 131a disposed on the drinking water outlet assembly 13a and a domestic water outlet 131b disposed on the domestic water outlet assembly 13 b.
The second reverse osmosis filter element 11b performs secondary filtration on the wastewater in the first reverse osmosis filter element 11a, and the wastewater is mixed with tap water before returning to the booster pump 12 through the first flow limiting valve 14a and enters the first reverse osmosis filter element 11a again for secondary filtration.
The user opens the drinking water tap (the drinking water inlet 131 is communicated with the drinking water outlet 131 a): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts to produce water; after tap water flows into the first reverse osmosis filter element 11a, pure water and waste water are divided into one path, the pure water flows to the third one-way valve 15c, the waste water flows into the second reverse osmosis filter element 11b and is subjected to secondary filtration, the pure water flows to the third one-way valve 15c and is converged with water flow from the first water outlet 112, the pure water is discharged through the drinking water faucet for drinking, the waste water is mixed with the tap water before flowing back to the booster pump 12 through the first flow limiting valve 14a and enters the first reverse osmosis filter element 11a again for secondary filtration, and zero discharge of the waste water is realized.
The user turns on the life tap (the life water inlet 132 is communicated with the life water outlet 131 b): tap water enters the first reverse osmosis filter element 11a through the booster pump 12, flows out of the wastewater side of the first reverse osmosis filter element 11a and enters the second reverse osmosis filter element 11b, then flows out of the wastewater side of the second reverse osmosis filter element 11b in two paths, one path of the wastewater flows out directly through a tap water faucet, and the other path of the wastewater flows back to the booster pump 12 through the first flow limiting valve 14a (with flow limitation and small flow), is mixed with tap water and then enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b again to flush the wastewater sides of the two reverse osmosis filter elements; namely, when a user opens a living water tap (the living water inlet 132 is communicated with the living water outlet 131 b), tap water with lower ion concentration can replace the wastewater with high ion concentration accumulated at the wastewater side of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, so that the problem of first cup of water is effectively solved; moreover, as the domestic water flow is large, when passing through the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, pollutants such as scale and organic matters deposited on the side surfaces of the wastewater of the two reverse osmosis filter elements can be washed away, the scaling risk of the two reverse osmosis filter elements is reduced, and the service lives of the two reverse osmosis filter elements are prolonged; meanwhile, the process can flush the wastewater return line and the first flow limiting valve 14a, the risk of blockage of the first flow limiting valve 14a due to scaling is reduced, and the service lives of the two reverse osmosis filter elements are further prolonged. When the tap is opened, the waste water generated and accumulated in the water making process can be discharged through the tap, so that the waste water utilization is realized in a real sense.
Direct discharge procedure of wastewater: when the user gets the drinking water, because the waste water backward flow, go out the increase of water TDS can along with the increase of water intaking time, consequently, after the design was got the drinking water time and is reached a definite value (preferred 1-5min) when the user, start the straight row procedure of waste water (preferred 5-300s of time), booster pump 12 keeps starting, keeps normal system water state promptly, and first ooff valve 18a opens, and the waste water that two reverse osmosis filter cores produced is along with the straight row pipeline Q of first waste water pipeline1And the initial level of the effluent TDS can be recovered within a short time, and the influence on the flow of the drinking water is weak.
Pure water reflux procedure: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a pure water backflow program (preferably 5-300 s); the booster pump 12 is started, the first switch valve 18a and the second switch valve 18b are opened, tap water enters the first reverse osmosis filter element 11a, pure water and waste water are separated into one path, the pure water flows to the third one-way valve 15c, and the waste water flows into the second reverse osmosis filter element 11b and is subjected to secondary filtration, and then pure water and waste water are separated into one pathWater and a path of wastewater, pure water flows to the third one-way valve 15c and joins with the water flow from the first water outlet 112; the converged pure water returns to the booster pump 12 through the pure water return branch R, is mixed with tap water and then enters the two reverse osmosis filter elements again, and the raw water in front of the two reverse osmosis filter elements is washed and neutralized; the wastewater flows out from the wastewater side of the second reverse osmosis filter element 11b and is directly discharged into the first wastewater direct discharge pipeline Q1(ii) a The process can complete the replacement of original residual water in the two reverse osmosis filter elements and the waste water pipeline, solves the problems of first cup of water and old water, has stable water quality, and provides pure fresh water all the time; meanwhile, the two reverse osmosis filter elements and the first flow limiting valve 14a are prevented from scaling, and the service lives of the two reverse osmosis filter elements and the first flow limiting valve 14a are prolonged. Under the normal condition, the user opens life tap (life level water inlet and outlet 133 switch on) can accomplish two reverse osmosis filter cores and the washing of waste water return line, and this procedure mainly used avoids having no use life water needs again after the user has got the drinking water, makes the residual water be detained for a long time in two reverse osmosis filter cores and waste water return line, causes first glass of water and incrustation scale deposit and influences life's problem.
Example eighteen: please refer to fig. 18. In the embodiment, on the basis of the fifth embodiment, a large-flux front-mounted filter element 17a is added at the front end of the booster pump 12, the type of the front-mounted filter element 17a can be PP in different forms, activated carbon in different forms, ultrafiltration, nanofiltration, composite filter elements made of the materials and the like, the large-flux specification is adopted, the water outlet flow of the front-mounted filter element 17a is not less than 8L/min, and the kitchen water is not limited and is equal to tap water.
The user turns on the drinking water tap (the drinking water inlet 131 is communicated with the drinking water outlet 131 a): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; tap water is roughly filtered by the high-flux preposed filter element 17a and then flows into the first reverse osmosis filter element 11a, the tap water is divided into a path of pure water and a path of wastewater, the pure water flows to the third one-way valve 15c, the wastewater flows into the second reverse osmosis filter element 11b and is secondarily filtered, the pure water flows to the third one-way valve 15c and is converged with water flow from the first water outlet 112, the pure water is discharged by the drinking water faucet for drinking, the wastewater flows back to the booster pump 12 through the first flow limiting valve 14a and is mixed with the water discharged by the high-flux preposed filter element 17a to enter the first reverse osmosis filter element 11a again for filtering, and zero discharge of the wastewater is realized.
The user turns on the life tap (the life water inlet 132 is communicated with the life water outlet 131 b): tap water enters the first reverse osmosis filter element 11a through the booster pump 12, flows out of the wastewater side of the first reverse osmosis filter element 11a and enters the second reverse osmosis filter element 11b, then flows out of the wastewater side of the second reverse osmosis filter element 11b in two paths, one path of the wastewater flows out directly through a tap water faucet, and the other path of the wastewater flows back to the booster pump 12 through the first flow limiting valve 14a (with flow limitation and small flow), is mixed with tap water and then enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b again to flush the wastewater sides of the two reverse osmosis filter elements; that is, when a user opens the living tap (the living water inlet 132 is communicated with the living water outlet 131 b), tap water with lower ion concentration can replace wastewater with high ion concentration accumulated at the wastewater side of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, so that the problem of first cup of water is effectively solved; moreover, as the domestic water flow is large, when passing through the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, pollutants such as scale and organic matters deposited on the side surfaces of the wastewater of the two reverse osmosis filter elements can be washed away, the scaling risk of the two reverse osmosis filter elements is reduced, and the service lives of the two reverse osmosis filter elements are prolonged; meanwhile, the process can flush the wastewater return pipeline and the first flow limiting valve 14a, the risk that the first flow limiting valve 14a is blocked due to scaling is reduced, and the service lives of the two reverse osmosis filter elements are further prolonged. When the tap is opened, the waste water generated and accumulated in the water making process can be discharged through the tap, so that the waste water utilization is realized in a real sense.
Direct discharge procedure of wastewater: when the user gets the drinking water, because the waste water backward flow, go out the increase of water TDS can along with the increase of water intaking time, consequently, after the design was got the drinking water time and is reached a definite value (preferred 1-5min) when the user, start the straight row procedure of waste water (preferred 5-300s of time), booster pump 12 keeps starting, keeps normal system water state promptly, and first ooff valve 18a opens, and the waste water that two reverse osmosis filter cores produced is along with the straight row pipeline Q of first waste water pipeline1Discharging, recovering initial level of TDS in short time, and making into beverageThe water flow has a weak influence.
Pure water reflux procedure: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a pure water backflow program (preferably 5-300 s); when the booster pump 12 is started, the first switch valve 18a and the second switch valve 18b are opened, tap water enters the first reverse osmosis filter element 11a and is divided into a path of pure water and a path of wastewater, the pure water flows to the third one-way valve 15c, the wastewater flows into the second reverse osmosis filter element 11b and is subjected to secondary filtration and divided into a path of pure water and a path of wastewater, and the pure water flows to the third one-way valve 15c and is converged with water flow from the first water outlet 112; the converged pure water returns to the booster pump 12 through the pure water return branch R, is mixed with tap water and then enters the two reverse osmosis filter elements again, and the raw water in front of the two reverse osmosis filter elements is washed and neutralized; the wastewater flows out from the wastewater side of the second reverse osmosis filter element 11b and is directly discharged into the first wastewater direct discharge pipeline Q1(ii) a The process can complete the replacement of original residual water in the two reverse osmosis filter elements and the waste water pipeline, solves the problems of first cup of water and old water, has stable water quality, and provides pure fresh water all the time; meanwhile, the two reverse osmosis filter elements and the first flow limiting valve 14a are prevented from scaling, and the service lives of the two reverse osmosis filter elements and the first flow limiting valve 14a are prolonged. Under the normal condition, the user opens life tap (life level water inlet and outlet 133 switch on) can accomplish two reverse osmosis filter cores and the washing of waste water return line, and this procedure mainly used avoids having no use life water needs again after the user has got the drinking water, makes the residual water be detained for a long time in two reverse osmosis filter cores and waste water return line, causes first glass of water and incrustation scale deposit and influences life's problem.
Example nineteenth: please refer to fig. 19. In this embodiment, based on the fifth embodiment, a post-filter 17b is added to the pure water outlet pipes of the first and second reverse osmosis filter elements 11a and 11b before the pure water reflux branch R, and the type of the post-filter 17b may be different forms of activated carbon.
The user turns on the drinking water tap (the drinking water inlet 131 is communicated with the drinking water outlet 131 a): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; tap water is divided into a path of pure water and a path of wastewater after flowing into the first reverse osmosis filter element 11a, the pure water flows to the third one-way valve 15c, the wastewater flows into the second reverse osmosis filter element 11b and is divided into a path of pure water and a path of wastewater after secondary filtration, the pure water flows to the third one-way valve 15c and is converged with water flow from the first water outlet 112, the pure water is discharged by a drinking water faucet for drinking after passing through the rear filter element 17b, the wastewater is mixed with the tap water before flowing back to the booster pump 12 through the first flow limiting valve 14a and enters the first reverse osmosis filter element 11a again for secondary filtration, and zero discharge of the wastewater is realized.
The user turns on the life tap (the life water inlet 132 is communicated with the life water outlet 131 b): tap water enters the first reverse osmosis filter element 11a through the booster pump 12, flows out of the wastewater side of the first reverse osmosis filter element 11a and enters the second reverse osmosis filter element 11b, then flows out of the wastewater side of the second reverse osmosis filter element 11b in two paths, one path of the wastewater flows out directly through a tap water faucet, and the other path of the wastewater flows back to the booster pump 12 through the first flow limiting valve 14a (with flow limitation and small flow), is mixed with tap water and then enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b again to flush the wastewater sides of the two reverse osmosis filter elements; namely, when a user opens a living water tap (the living water inlet 132 is communicated with the living water outlet 131 b), tap water with lower ion concentration can replace the wastewater with high ion concentration accumulated at the wastewater side of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, so that the problem of first cup of water is effectively solved; moreover, as the domestic water flow is large, when passing through the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, pollutants such as scale and organic matters deposited on the side surfaces of the wastewater of the two reverse osmosis filter elements can be washed away, the scaling risk of the two reverse osmosis filter elements is reduced, and the service lives of the two reverse osmosis filter elements are prolonged; meanwhile, the process can flush the wastewater return line and the first flow limiting valve 14a, the risk of blockage of the first flow limiting valve 14a due to scaling is reduced, and the service lives of the two reverse osmosis filter elements are further prolonged. When the tap is opened, the waste water generated and accumulated in the water making process can be discharged through the tap, so that the waste water utilization is realized in a real sense.
Direct discharge procedure of wastewater: when the user takes the drinking water, the TDS of the outlet water can be increased along with the increase of the water taking time due to the backflow of the waste water, so that the design is that when the drinking water taking time of the user reaches a certain value (preferably, the water taking time is equal to the TDS of the outlet water)1-5min), starting a wastewater direct discharging program (the time is preferably 5-300s), keeping the booster pump 12 started, namely keeping a normal water production state, opening the first switch valve 18a, and directly discharging the wastewater generated by the two reverse osmosis filter elements along with the first wastewater into the pipeline Q1And the initial level of the effluent TDS can be recovered within a short time, and the influence on the flow of the drinking water is weak.
Pure water reflux procedure: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a pure water backflow procedure (preferably for 5-300 s); when the booster pump 12 is started, the first switch valve 18a and the second switch valve 18b are opened, tap water enters the first reverse osmosis filter element 11a and is divided into a path of pure water and a path of wastewater, the pure water flows to the third one-way valve 15c, the wastewater flows into the second reverse osmosis filter element 11b and is subjected to secondary filtration and divided into a path of pure water and a path of wastewater, and the pure water flows to the third one-way valve 15c and is converged with water flow from the first water outlet 112; the converged pure water returns to the booster pump 12 through the pure water return branch R, is mixed with tap water and then enters the two reverse osmosis filter elements again, and the raw water in front of the two reverse osmosis filter elements is washed and neutralized; the wastewater flows out from the wastewater side of the second reverse osmosis filter element 11b and is directly discharged into the first wastewater direct discharge pipeline Q1(ii) a The process can complete the replacement of the original residual water in the two reverse osmosis filter elements, the post filter element 17b and the waste water pipeline, solve the problems of first cup of water and old water, has stable water quality and provides pure fresh water all the time; meanwhile, the two reverse osmosis filter elements and the first flow limiting valve 14a are prevented from scaling, and the service lives of the two reverse osmosis filter elements and the first flow limiting valve 14a are prolonged. Under the normal condition, the user opens life tap (life level water inlet switches on with outlet 133) and can accomplish washing to two reverse osmosis filter cores and waste water return line, and this procedure mainly used avoids having again to use the domestic water needs after the user has got the drinking water, makes the residual water be detained in two reverse osmosis filter cores and waste water return line for a long time, causes first glass of water and incrustation scale deposit and influences life's problem.
Example twenty: please refer to fig. 20. In the embodiment, on the basis of the fifth embodiment, a large-flux front filter element 17a is added at the front end of the booster pump 12, and a rear filter element 17b is added on a pure water outlet pipeline of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b and in front of a pure water reflux branch R; the types of the preposed filter element 17a can be PP with different forms, active carbon with different forms, ultrafiltration, nanofiltration, composite filter elements made of the materials and the like, the large-flux specification is adopted, the water outlet flow of the preposed filter element 17a is more than or equal to 8L/min, and the kitchen water is not limited and is equal to tap water; the kind of the post-filter 17b may be activated carbon of different forms.
The user turns on the drinking water tap (the drinking water inlet 131 is communicated with the drinking water outlet 131 a): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; tap water is coarsely filtered by the preposed filter element 17a and then flows into the first reverse osmosis filter element 11a, and then is divided into a path of pure water and a path of waste water, the pure water flows to the third one-way valve 15c, the waste water flows into the second reverse osmosis filter element 11b and is divided into a path of pure water and a path of waste water after secondary filtration, the pure water flows to the third one-way valve 15c and is converged with water flow from the first water outlet 112, the pure water is discharged by a drinking water faucet for drinking after flowing through the postposition filter element 17b, the waste water flows back to the booster pump 12 through the first flow limiting valve 14a and is mixed with the water discharged from the large-flux preposed filter element 17a to enter the first reverse osmosis filter element 11a again for secondary filtration, and zero discharge of the waste water is realized.
The user turns on the life tap (the life water inlet 132 is communicated with the life water outlet 131 b): tap water enters the first reverse osmosis filter element 11a through the booster pump 12, flows out of the wastewater side of the first reverse osmosis filter element 11a and enters the second reverse osmosis filter element 11b, then flows out of the wastewater side of the second reverse osmosis filter element 11b in two paths, one path of the wastewater flows out directly through a tap water faucet, and the other path of the wastewater flows back to the booster pump 12 through the first flow limiting valve 14a (with flow limitation and small flow), is mixed with tap water and then enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b again to flush the wastewater sides of the two reverse osmosis filter elements; namely, when a user opens a living water tap (the living water inlet 132 is communicated with the living water outlet 131 b), tap water with lower ion concentration can replace the wastewater with high ion concentration accumulated at the wastewater side of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, so that the problem of first cup of water is effectively solved; and because the domestic water flow is larger, when passing through the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, pollutants such as incrustations, organic matters and the like deposited on the side surfaces of the waste water of the two reverse osmosis filter elements can be washed away, the scaling risk of the two reverse osmosis filter elements is reduced, and the service lives of the two reverse osmosis filter elements are prolonged; meanwhile, the process can flush the wastewater return line and the first flow limiting valve 14a, the risk of blockage of the first flow limiting valve 14a due to scaling is reduced, and the service lives of the two reverse osmosis filter elements are further prolonged. When the tap is opened, the waste water generated and accumulated in the water making process can be discharged through the tap, so that the waste water utilization is realized in a real sense.
Direct discharge procedure of wastewater: when the user gets the drinking water, because the waste water backward flow, go out the increase of water TDS can along with the increase of water intaking time, consequently, after the design was got the drinking water time and is reached a definite value (preferred 1-5min) when the user, start the straight row procedure of waste water (preferred 5-300s of time), booster pump 12 keeps starting, keeps normal system water state promptly, and first ooff valve 18a opens, and the waste water that two reverse osmosis filter cores produced is along with the straight row pipeline Q of first waste water pipeline1And after the water is discharged, the initial level of TDS of the discharged water can be recovered in a short time, and the influence on the flow of the drinking water is weak.
Pure water reflux procedure: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a pure water backflow procedure (preferably for 5-300 s); when the booster pump 12 is started, the first switch valve 18a and the second switch valve 18b are opened, tap water enters the first reverse osmosis filter element 11a and is divided into a path of pure water and a path of wastewater, the pure water flows to the third one-way valve 15c, the wastewater flows into the second reverse osmosis filter element 11b and is subjected to secondary filtration and divided into a path of pure water and a path of wastewater, and the pure water flows to the third one-way valve 15c and is converged with water flow from the first water outlet 112; the converged pure water returns to the booster pump 12 through the pure water return branch R, is mixed with tap water and then enters the two reverse osmosis filter elements again, and the raw water in front of the two reverse osmosis filter elements is washed and neutralized; the wastewater flows out from the wastewater side of the second reverse osmosis filter element 11b and is directly discharged into the first wastewater direct discharge pipeline Q1(ii) a The procedure can complete the replacement of the original residual water in the two reverse osmosis filter elements, the post filter element 17b and the waste water pipeline, solve the problems of the first cup of water and the old water, has stable water quality and provides pure fresh water all the time; while preventing the two reverse osmosis filter elements and the first flow limiting valve 14a from scaling and extending the two reverse osmosis filter elements and the first flow limiting valve 14aAnd (4) service life. Under the normal condition, the user opens life tap (life level water inlet and outlet 133 switch on) can accomplish two reverse osmosis filter cores and the washing of waste water return line, and this procedure mainly used avoids having no use life water needs again after the user has got the drinking water, makes the residual water be detained for a long time in two reverse osmosis filter cores and waste water return line, causes first glass of water and incrustation scale deposit and influences life's problem.
Example twenty one: please refer to fig. 21. In this embodiment, a second reverse osmosis filter element 11b is added on the basis of the first embodiment, and is connected with the first reverse osmosis filter element 11a in parallel. The second reverse osmosis filter element 11b is provided with a second water inlet 114, a second water outlet 115 and a second waste water outlet 116, the second water inlet 114 is communicated with the pump outlet 122, and the second waste water outlet 116 and a second waste water direct discharge pipeline Q2Is communicated with the first waste water direct discharge pipeline Q2A second current limiting valve 14b and a third switch valve 18c are arranged on the valve body, and the second current limiting valve 14b has a current limiting function; a third on-off valve 18c is located downstream of the second flow limiting valve 14b, and a flow path between the third on-off valve 18c and the second flow limiting valve 14b passes through the second branch passage P2In communication with the pump inlet 121, a second branch P2A fourth check valve 15d is arranged on the first waste water inlet 121, and the flow direction of the fourth check valve 15d flows from the second waste water inlet 116 to the pump inlet 121; the second water outlet 115 communicates with the flow path between the first water outlet 112 and the third check valve 15 c. The water outlet assembly 13 includes a drinking water outlet assembly 13a and a domestic water outlet assembly 13b which are independent of each other, the drinking water outlet assembly 13a has a drinking water inlet 131, the domestic water outlet assembly 13b has a domestic water inlet 132, and the water outlet 133 includes a drinking water outlet 131a disposed on the drinking water outlet assembly 13a and a domestic water outlet 131b disposed on the domestic water outlet assembly 13 b.
The user turns on the drinking water tap (the drinking water inlet 131 is communicated with the drinking water outlet 131 a): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; running water respectively enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, is filtered and then is converged, and is discharged for drinking through a drinking water faucet; the wastewater flows back to the booster pump 12 through the first flow limiting valve 14a and the second flow limiting valve 14b, is mixed with tap water and then enters the two reverse osmosis filter elements again for secondary filtration, and zero discharge of the wastewater is realized.
The user turns on the life tap (the life water inlet 132 is communicated with the life water outlet 131 b): running water passes through the booster pump 12, then enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b respectively, then flows out of the waste water sides of the two reverse osmosis filter elements in two ways, one way of the running water is converged with a large flow rate and then is directly discharged through a running water faucet, and the other way of the running water passes through the first flow limiting valve 14a and the second flow limiting valve 14b (with flow limitation and small flow rate) and flows back to the booster pump 12, and then is mixed with the running water and then enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b again to flush the waste water sides of the two reverse osmosis filter elements. Namely, when a user opens a living water tap (the living water inlet 132 is communicated with the living water outlet 131 b), tap water with lower ion concentration can replace the wastewater with high ion concentration accumulated at the wastewater side of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, so that the problem of first cup of water is effectively solved; moreover, as the domestic water flow is large, when passing through the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, pollutants such as scale and organic matters deposited on the side surfaces of the wastewater of the two reverse osmosis filter elements can be washed away, the scaling risk of the two reverse osmosis filter elements is reduced, and the service lives of the two reverse osmosis filter elements are prolonged; meanwhile, the process can flush the wastewater return pipeline and the first flow limiting valve 14a and the second flow limiting valve 14b, so that the risk of blockage of the two flow limiting valves due to scaling is reduced, and the service lives of the two reverse osmosis filter elements are further prolonged. When the tap is opened, the waste water generated and accumulated in the water making process can be discharged through the tap, so that the waste water utilization is realized in a real sense.
Direct discharge procedure of wastewater: when the user got the drinking water, because the waste water backward flow, it can increase along with the increase of water intaking time to go out water TDS, consequently, after the design was got the drinking water time of user and is reached a definite value (preferred 1-5min), start the straight row procedure of waste water (preferred 5-300s of time), booster pump 12 keeps starting, keeps normal system water state promptly, first ooff valve 18a and third ooff valve 18c open, the waste water that two reverse osmosis filter core produced is discharged along with two straight row pipelines of waste water, can resume initial level in the play water TDS short time, and it is less to drinking water flux influence.
Pure water reflux procedure: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a pure water backflow procedure (preferably for 5-300 s); starting the booster pump 12, opening a first switch valve 18a, a second switch valve 18b and a third switch valve 18c, enabling tap water to respectively enter a first reverse osmosis filter element 11a and a second reverse osmosis filter element 11b, filtering and converging the tap water, returning the tap water to the booster pump 12 through a pure water backflow branch R, mixing the tap water with the tap water, and then enabling the mixed tap water to enter the two reverse osmosis filter elements again to flush and neutralize the raw water in front of the two reverse osmosis filter elements; the wastewater of the two reverse osmosis filter elements is directly discharged into two wastewater direct discharge pipelines; the process can complete the replacement of the waste water of the two reverse osmosis filter elements and the original residual water in the pipeline, solves the problems of first cup of water and old water, has stable water quality, and provides pure fresh water all the time; meanwhile, the two reverse osmosis filter cores and the first flow limiting valve 14a and the second flow limiting valve 14b are prevented from scaling, and the service lives of the two reverse osmosis filter cores and the two flow limiting valves are prolonged. Under the normal condition, the user opens life tap (life level water inlet and outlet 133 switch on) can accomplish two reverse osmosis filter cores and the washing of waste water return line, and this procedure mainly used avoids having no use life water needs again after the user has got the drinking water, makes the residual water be detained for a long time in two reverse osmosis filter cores and waste water return line, causes first glass of water and incrustation scale deposit and influences life's problem.
Example twenty two: please refer to fig. 22. In this embodiment, on the basis of the ninth embodiment, a large-flux pre-filter element 17a is added at the front end of the booster pump 12; the types of the preposed filter element 17a can be PP with different forms, active carbon with different forms, ultrafiltration, nanofiltration, composite filter elements made of the materials and the like, all adopt large-flux specifications, the water outlet flow of the preposed filter element 17a is more than or equal to 8L/min, the kitchen water is not limited, and the kitchen water is equivalent to tap water.
The user turns on the drinking water tap (the drinking water inlet 131 is communicated with the drinking water outlet 131 a): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; tap water is coarsely filtered by the preposed filter element 17a, then respectively enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, is converged after being filtered, and is discharged by the drinking faucet for drinking; the wastewater flows back to the front of the booster pump 12 through the first flow limiting valve 14a and the second flow limiting valve 14b to be mixed with the effluent of the large-flux preposed filter element 17a, and then enters the two reverse osmosis filter elements again for secondary filtration, so that zero discharge of the wastewater is realized.
The user turns on the life tap (the life water inlet 132 is communicated with the life water outlet 131 b): running water respectively enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b after passing through the booster pump 12 and then respectively flows out from the waste water sides of the two reverse osmosis filter elements in two paths, one path of running water is converged in a large flow rate and then directly discharged through a running water faucet, and the other path of running water flows back to the booster pump 12 through the first flow limiting valve 14a and the second flow limiting valve 14b (with flow limiting and smaller flow rate) and then is mixed with the running water and then enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b again to flush the waste water sides of the two reverse osmosis filter elements. That is, when a user opens the living tap (the living water inlet 132 is communicated with the living water outlet 131 b), tap water with lower ion concentration can replace wastewater with high ion concentration accumulated at the wastewater side of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, so that the problem of first cup of water is effectively solved; moreover, as the domestic water flow is large, when passing through the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, pollutants such as scale and organic matters deposited on the side surfaces of the wastewater of the two reverse osmosis filter elements can be washed away, the scaling risk of the two reverse osmosis filter elements is reduced, and the service lives of the two reverse osmosis filter elements are prolonged; meanwhile, the process can flush the wastewater return pipeline and the first flow limiting valve 14a and the second flow limiting valve 14b, so that the risk of blockage of the two flow limiting valves due to scaling is reduced, and the service lives of the two reverse osmosis filter cores are further prolonged. When the tap is opened, the waste water generated and accumulated in the water making process can be discharged through the tap, so that the waste water utilization is realized in a real sense.
Direct discharge procedure of wastewater: when a user takes drinking water, because waste water reflows, the TDS of the outlet water can be increased along with the increase of water taking time, therefore, after the drinking water taking time of the user reaches a certain value (preferably 1-5min), a waste water direct discharging program is started (preferably 5-300s), the booster pump 12 is started, namely, a normal water making state is kept, the first switch valve 18a and the third switch valve 18c are opened, waste water generated by the two reverse osmosis filter elements is discharged along the two waste water direct discharging pipelines, the initial level of the outlet water TDS can be recovered in a short time, and the influence on the flux of the drinking water is small.
Pure water reflux procedure: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a pure water backflow procedure (preferably for 5-300 s); starting the booster pump 12, opening a first switch valve 18a, a second switch valve 18b and a third switch valve 18c, enabling tap water to respectively enter a first reverse osmosis filter element 11a and a second reverse osmosis filter element 11b, filtering and converging the tap water, returning the tap water to the booster pump 12 through a pure water backflow branch R, mixing the tap water with the tap water, and then enabling the mixed tap water to enter the two reverse osmosis filter elements again to flush and neutralize the raw water in front of the two reverse osmosis filter elements; the wastewater of the two reverse osmosis filter elements is directly discharged into two wastewater direct discharge pipelines; the process can complete the replacement of the waste water of the two reverse osmosis filter elements and the original residual water in the pipeline, solves the problems of first cup of water and old water, has stable water quality, and provides pure fresh water all the time; meanwhile, the two reverse osmosis filter cores and the first flow limiting valve 14a and the second flow limiting valve 14b are prevented from scaling, and the service lives of the two reverse osmosis filter cores and the two flow limiting valves are prolonged. Under the normal condition, the user opens life tap (life level water inlet and outlet 133 switch on) can accomplish two reverse osmosis filter cores and the washing of waste water return line, and this procedure mainly used avoids having no use life water needs again after the user has got the drinking water, makes the residual water be detained for a long time in two reverse osmosis filter cores and waste water return line, causes first glass of water and incrustation scale deposit and influences life's problem.
Example twenty three: please refer to fig. 23. In this embodiment, on the basis of the ninth embodiment, a post-filter element 17b is added to a pure water outlet water converging pipeline of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b before a pure water reflux branch R; the kind of the post-filter 17b may be activated carbon of different forms.
The user turns on the drinking water tap (the drinking water inlet 131 is communicated with the drinking water outlet 131 a): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; running water respectively enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, is filtered and then is converged, and is discharged by a drinking water tap for drinking after passing through the post-positioned filter element 17 b; the wastewater flows back to the booster pump 12 through the first flow limiting valve 14a and the second flow limiting valve 14b, is mixed with tap water and then enters the two reverse osmosis filter elements again for secondary filtration, and zero discharge of the wastewater is realized.
The user turns on the life tap (the life water inlet 132 is communicated with the life water outlet 131 b): running water respectively enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b after passing through the booster pump 12 and then respectively flows out from the waste water sides of the two reverse osmosis filter elements in two paths, one path of running water is converged in a large flow rate and then directly discharged through a running water faucet, and the other path of running water flows back to the booster pump 12 through the first flow limiting valve 14a and the second flow limiting valve 14b (with flow limiting and smaller flow rate) and then is mixed with the running water and then enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b again to flush the waste water sides of the two reverse osmosis filter elements. Namely, when a user opens a living water tap (the living water inlet 132 is communicated with the living water outlet 131 b), tap water with lower ion concentration can replace the wastewater with high ion concentration accumulated at the wastewater side of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, so that the problem of first cup of water is effectively solved; and because the domestic water flow is larger, when passing through the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, pollutants such as incrustations, organic matters and the like deposited on the side surfaces of the waste water of the two reverse osmosis filter elements can be washed away, the scaling risk of the two reverse osmosis filter elements is reduced, and the service lives of the two reverse osmosis filter elements are prolonged; meanwhile, the process can flush the wastewater return pipeline and the first flow limiting valve 14a and the second flow limiting valve 14b, so that the risk of blockage of the two flow limiting valves due to scaling is reduced, and the service lives of the two reverse osmosis filter elements are further prolonged. When the tap is opened, the waste water generated and accumulated in the water making process can be discharged through the tap, so that the waste water utilization is realized in a real sense.
Direct discharge procedure of wastewater: when a user takes drinking water, because waste water reflows, the TDS (total dissolved solids) of the outlet water can be increased along with the increase of water taking time, therefore, after the drinking water taking time of the user reaches a certain value (preferably 1-5min), a waste water direct discharging program (preferably 5-300s) is started, the booster pump 12 is started, namely, a normal water making state is kept, the first switch valve 18a and the third switch valve 18c are opened, waste water generated by the two reverse osmosis filter elements is discharged along the two waste water direct discharging pipelines, the initial level can be recovered within a short time of the TDS of the outlet water, and the influence on the flux of the drinking water is small.
Pure water reflux procedure: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a pure water backflow procedure (preferably for 5-300 s); starting the booster pump 12, opening a first switch valve 18a, a second switch valve 18b and a third switch valve 18c, enabling tap water to respectively enter a first reverse osmosis filter element 11a and a second reverse osmosis filter element 11b, filtering and converging the tap water, returning the tap water to the booster pump 12 through a pure water backflow branch R, mixing the tap water with the tap water, and then enabling the mixed tap water to enter the two reverse osmosis filter elements again to flush and neutralize the raw water in front of the two reverse osmosis filter elements; the wastewater of the two reverse osmosis filter elements is directly discharged into two wastewater direct discharge pipelines; the process can complete the replacement of the waste water of the two reverse osmosis filter elements, the post filter element 17b and the original residual water in the pipeline, solve the problems of the first cup of water and the old water, has stable water quality and provides pure fresh water all the time; meanwhile, the two reverse osmosis filter cores and the first flow limiting valve 14a and the second flow limiting valve 14b are prevented from scaling, and the service lives of the two reverse osmosis filter cores and the two flow limiting valves are prolonged. Under the normal condition, the user opens life tap (life level water inlet and outlet 133 switch on) can accomplish two reverse osmosis filter cores and the washing of waste water return line, and this procedure mainly used avoids having no use life water needs again after the user has got the drinking water, makes the residual water be detained for a long time in two reverse osmosis filter cores and waste water return line, causes first glass of water and incrustation scale deposit and influences life's problem.
Example twenty-four: please refer to fig. 24. In the embodiment, on the basis of the ninth embodiment, a large-flux preposed filter element 17a is added at the front end of the booster pump 12, and a postpositive filter element 17b is added on a pure water outlet water converging pipeline of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b and in front of a pure water reflux branch R; the type of the preposed filter element 17a can be PP with different forms, active carbon with different forms, ultrafiltration, nanofiltration, composite filter elements made of the materials and the like, the preposed filter element 17a adopts a large flux specification, the water outlet flow is more than or equal to 8L/min, and kitchen water is not limited and is equal to tap water; the kind of the post-filter 17b may be activated carbon of different forms.
The user turns on the drinking water tap (the drinking water inlet 131 is communicated with the drinking water outlet 131 a): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; tap water is coarsely filtered by the preposed filter element 17a, then respectively enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, is converged after being filtered, and is discharged by the drinking water faucet for drinking after passing through the postposition filter element 17 b; and the wastewater flows back to the front of the booster pump 12 through the first flow limiting valve 14a and the second flow limiting valve 14b and is mixed with the water discharged from the large-flux preposed filter element 17a, and then enters the two reverse osmosis filter elements for secondary filtration, so that zero discharge of the wastewater is realized.
The user turns on the life tap (the life water inlet 132 is communicated with the life water outlet 131 b): running water respectively enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b after passing through the booster pump 12 and then respectively flows out from the waste water sides of the two reverse osmosis filter elements in two paths, one path of running water is converged in a large flow rate and then directly discharged through a running water faucet, and the other path of running water flows back to the booster pump 12 through the first flow limiting valve 14a and the second flow limiting valve 14b (with flow limiting and smaller flow rate) and then is mixed with the running water and then enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b again to flush the waste water sides of the two reverse osmosis filter elements. That is, when a user opens the living tap (the living water inlet 132 is communicated with the living water outlet 131 b), tap water with lower ion concentration can replace wastewater with high ion concentration accumulated at the wastewater side of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, so that the problem of first cup of water is effectively solved; moreover, as the domestic water flow is large, when passing through the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, pollutants such as scale and organic matters deposited on the side surfaces of the wastewater of the two reverse osmosis filter elements can be washed away, the scaling risk of the two reverse osmosis filter elements is reduced, and the service lives of the two reverse osmosis filter elements are prolonged; meanwhile, the process can flush the wastewater return pipeline and the first flow limiting valve 14a and the second flow limiting valve 14b, so that the risk of blockage of the two flow limiting valves due to scaling is reduced, and the service lives of the two reverse osmosis filter elements are further prolonged. When the tap is opened, the waste water generated and accumulated in the water making process can be discharged through the tap, so that the waste water utilization is realized in a real sense.
Direct discharge procedure of wastewater: when a user takes drinking water, because waste water reflows, the TDS (total dissolved solids) of the outlet water can be increased along with the increase of water taking time, therefore, after the drinking water taking time of the user reaches a certain value (preferably 1-5min), a waste water direct discharging program (preferably 5-300s) is started, the booster pump 12 is started, namely, a normal water making state is kept, the first switch valve 18a and the third switch valve 18c are opened, waste water generated by the two reverse osmosis filter elements is discharged along the two waste water direct discharging pipelines, the initial level can be recovered within a short time of the TDS of the outlet water, and the influence on the flux of the drinking water is small.
Pure water reflux procedure: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a pure water backflow procedure (preferably for 5-300 s); starting the booster pump 12, opening a first switch valve 18a, a second switch valve 18b and a third switch valve 18c, enabling tap water to respectively enter a first reverse osmosis filter element 11a and a second reverse osmosis filter element 11b, filtering and converging the tap water, returning the tap water to the booster pump 12 through a pure water backflow branch R, mixing the tap water with the tap water, and then enabling the mixed tap water to enter the two reverse osmosis filter elements again to flush and neutralize the raw water in front of the two reverse osmosis filter elements; the wastewater of the two reverse osmosis filter elements is directly discharged into two wastewater direct discharge pipelines; the process can complete the replacement of the waste water of the two reverse osmosis filter elements, the rear filter element 17b and the original residual water in the pipeline, solve the problems of first cup of water and old water, has stable water quality and provides pure fresh water all the time; meanwhile, the two reverse osmosis filter cores and the first flow limiting valve 14a and the second flow limiting valve 14b are prevented from scaling, and the service lives of the two reverse osmosis filter cores and the two flow limiting valves are prolonged. Under the normal condition, the user opens life tap (life level water inlet and outlet 133 switch on) can accomplish two reverse osmosis filter cores and the washing of waste water return line, and this procedure mainly used avoids having no use life water needs again after the user has got the drinking water, makes the residual water be detained for a long time in two reverse osmosis filter cores and waste water return line, causes first glass of water and incrustation scale deposit and influences life's problem.
In order to facilitate the management of the waste water, on the basis of the above-described embodiment, a waste water valve may be provided downstream of the first waste water port 113 or downstream of the second waste water port 116, for opening and closing the first waste water port 113 and/or the second waste water port 116.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (17)
1. A waterway system, comprising:
the first reverse osmosis filter element is provided with a first water inlet, a first water outlet and a first waste water outlet;
the booster pump is provided with a pump inlet and a pump outlet, the pump inlet is used for being communicated with a water source, the pump outlet is communicated with the first water inlet, and the first wastewater outlet is communicated with one end of a first wastewater direct discharge pipeline;
the water outlet component is provided with a water outlet, a drinking water inlet and a domestic water inlet; the drinking water inlet is communicated with the first water outlet, and the domestic water inlet is communicated with the first wastewater outlet;
the first flow limiting valve is arranged on the first wastewater straight pipeline and has a flow limiting function;
the first switch valve is arranged on the first waste water straight-discharging pipeline and is positioned at the downstream of the first flow limiting valve, and a flow path between the first switch valve and the first flow limiting valve is communicated with the pump inlet through a first branch;
the first check valve is arranged on the first branch, and the flow direction of the first check valve flows from the first waste water port to the pump inlet;
the high-voltage switch is arranged on a flow path between the first water outlet and the drinking water inlet;
the first reverse osmosis filter element with flow path between the high-voltage switch pass through the pure water backward flow branch road with the pump entry intercommunication, be provided with second ooff valve and second check valve on the pure water backward flow branch road, the flow path of second check valve by first delivery port flow direction the pump entry.
2. The waterway system of claim 1, further comprising a third check valve disposed in the flow path between the first water outlet and the high pressure switch, wherein the third check valve flows from the first water outlet to the drinking water inlet.
3. The waterway system of claim 2, wherein the water outlet assembly comprises a drinking water outlet assembly and a domestic water outlet assembly that are independent of each other, the drinking water outlet assembly has the drinking water inlet, the domestic water outlet assembly has the domestic water inlet, and the water outlet comprises a drinking water outlet disposed at the drinking water outlet assembly and a domestic water outlet disposed at the domestic water outlet assembly.
4. The waterway system of claim 2, further comprising a second reverse osmosis cartridge disposed in the flow path between the first waste water port and the first restrictor valve, the second reverse osmosis cartridge having a second water inlet in communication with the first waste water port, a second water outlet in communication with the water inlet end of the first restrictor valve, and a second waste water port in communication with the flow path between the first water outlet and the third check valve.
5. The waterway system of claim 4, wherein the water outlet assembly comprises a drinking water outlet assembly and a domestic water outlet assembly that are independent of each other, the drinking water outlet assembly has the drinking water inlet, the domestic water outlet assembly has the domestic water inlet, and the water outlet comprises a drinking water outlet disposed at the drinking water outlet assembly and a domestic water outlet disposed at the domestic water outlet assembly.
6. The waterway system of claim 2, further comprising a second reverse osmosis filter element having a second water inlet, a second water outlet and a second waste water port, the second water inlet being in communication with the pump outlet, the second waste water port being in communication with one end of a second waste water straight discharge line, the second waste water straight discharge line being provided with a second flow restriction valve and a third on/off valve, the second flow restriction valve having a flow restriction function; the third switch valve is positioned at the downstream of the second flow limiting valve, a flow path between the third switch valve and the second flow limiting valve is communicated with the pump inlet through a second branch, a fourth one-way valve is arranged on the second branch, and the flow direction of the fourth one-way valve flows from the second waste water port to the pump inlet; the second water outlet is communicated with a flow path between the first water outlet and the third one-way valve.
7. The waterway system of claim 6, wherein the outlet assembly includes a potable water outlet assembly and a domestic water outlet assembly independent of each other, the potable water outlet assembly having the potable water inlet, the domestic water outlet assembly having the domestic water inlet, the water outlet port including a potable water outlet port disposed at the potable water outlet assembly and a domestic water outlet port disposed at the domestic water outlet assembly.
8. The waterway system of any one of claims 3, 5, or 7, further comprising a pre-filter disposed upstream of the booster pump, the water outlet side of the first one-way valve being in communication with the pump inlet, the water outlet of the pre-filter being no less than 8L/min.
9. The waterway system of claim 8, wherein a fill valve is disposed between the pre-filter element and a location upstream of the pre-filter element or where the pump inlet is located at the intersection of the flowpath and the first branch.
10. The waterway system of claim 8, further comprising a post-positioned filter element disposed in the flow path between the first reverse osmosis filter element and the third one-way valve.
11. The waterway system of claim 10, wherein the pre-filter is a PP filter element, an activated carbon filter element, an ultrafiltration filter element, or a nanofiltration filter element; the post-positioned filter element is an activated carbon filter element.
12. The waterway system of any one of claims 2, 4, or 6, further comprising a pre-filter disposed upstream of the booster pump, the water outlet side of the first one-way valve being in communication with the pump inlet, the water outlet of the pre-filter being less than 8L/min.
13. The waterway system of claim 12, wherein a fill valve is disposed between the pre-filter element and a location upstream of the pre-filter element or where the pump inlet is located at the intersection of the flowpath and the first branch.
14. The waterway system of claim 12, further comprising a post-positioned filter element disposed in the flow path between the first reverse osmosis filter element and the third one-way valve.
15. The waterway system of claim 14, wherein the pre-filter is a PP filter element, an activated carbon filter element, an ultrafiltration filter element, or a nanofiltration filter element; the post-positioned filter element is an activated carbon filter element.
16. The waterway system of any of claims 2-7, further comprising a post-positioned filter element disposed in the flow path between the first reverse osmosis filter element and the third one-way valve.
17. A water purifier comprising a waterway system according to any one of claims 1 to 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123431360.1U CN216808230U (en) | 2021-12-29 | 2021-12-29 | Waterway system and water purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123431360.1U CN216808230U (en) | 2021-12-29 | 2021-12-29 | Waterway system and water purifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216808230U true CN216808230U (en) | 2022-06-24 |
Family
ID=82062694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123431360.1U Active CN216808230U (en) | 2021-12-29 | 2021-12-29 | Waterway system and water purifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216808230U (en) |
-
2021
- 2021-12-29 CN CN202123431360.1U patent/CN216808230U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114275846B (en) | Waterway system with wastewater direct discharge and pure water reflux and water purifier | |
| CN114262024A (en) | Water purifier with flowmeter and intelligent water outlet assembly | |
| CN216808230U (en) | Waterway system and water purifier | |
| CN217323460U (en) | Waterway system and water purifier | |
| CN216808225U (en) | Waterway system with double return pipelines and water purifier | |
| CN218371874U (en) | Water purifier with flowmeter and high-voltage switch | |
| CN216711674U (en) | Water purifier with flowmeter and intelligent water outlet assembly | |
| CN216808226U (en) | Water purifier with flowmeter and intelligent water outlet assembly | |
| CN218371875U (en) | Water purifier with flowmeter | |
| CN216711670U (en) | Waterway system with double loops and water purifier | |
| CN216808231U (en) | Waterway system with double loops and water purifier | |
| CN216808229U (en) | Waterway system with double TDS probes | |
| CN216711671U (en) | Waterway system with double high-voltage switches | |
| CN216808223U (en) | Waterway system with double-TDS probe | |
| CN114275851A (en) | Waterway system with double return pipelines and water purifier | |
| CN216808234U (en) | Waterway system with double TDS probes | |
| CN217323459U (en) | Waterway system with waste water direct discharge pipeline | |
| CN217323461U (en) | Waterway system with double-TDS probe | |
| CN216808232U (en) | Waterway system with split type water outlet assembly and water purifier | |
| CN216711672U (en) | Waterway system with intelligent water outlet assembly | |
| CN217323462U (en) | Waterway system with double TDS probes | |
| CN216808227U (en) | Waterway system with wastewater direct discharge pipeline | |
| CN217323458U (en) | Waterway system and water purifier | |
| CN216711673U (en) | Waterway system with intelligent water outlet assembly | |
| CN216808224U (en) | Reverse osmosis wastewater backflow waterway system and water purifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |