CN114275848A - Waterway system and water purifier - Google Patents
Waterway system and water purifier Download PDFInfo
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- CN114275848A CN114275848A CN202111645477.1A CN202111645477A CN114275848A CN 114275848 A CN114275848 A CN 114275848A CN 202111645477 A CN202111645477 A CN 202111645477A CN 114275848 A CN114275848 A CN 114275848A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 337
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 247
- 239000002351 wastewater Substances 0.000 claims abstract description 212
- 239000003651 drinking water Substances 0.000 claims description 62
- 235000020188 drinking water Nutrition 0.000 claims description 57
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 28
- 238000011045 prefiltration Methods 0.000 claims description 11
- 238000001728 nano-filtration Methods 0.000 claims description 8
- 238000000108 ultra-filtration Methods 0.000 claims description 8
- 230000001960 triggered effect Effects 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 235000012206 bottled water Nutrition 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 23
- 239000008399 tap water Substances 0.000 description 65
- 235000020679 tap water Nutrition 0.000 description 65
- 230000002035 prolonged effect Effects 0.000 description 36
- 150000002500 ions Chemical class 0.000 description 29
- 230000008859 change Effects 0.000 description 24
- 238000004519 manufacturing process Methods 0.000 description 24
- 230000008569 process Effects 0.000 description 20
- 238000001914 filtration Methods 0.000 description 17
- 239000003344 environmental pollutant Substances 0.000 description 14
- 231100000719 pollutant Toxicity 0.000 description 14
- 230000035622 drinking Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 12
- 239000002131 composite material Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 4
- -1 incrustation scale Substances 0.000 description 4
- 239000005416 organic matter Substances 0.000 description 4
- 239000000306 component Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 230000003204 osmotic effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial 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
- 239000002384 drinking water standard Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 229910001410 inorganic ion Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 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
- 230000009467 reduction Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
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Abstract
The invention discloses a waterway system and a water purifier. The method can greatly reduce the discharge of waste water while ensuring the performance and the service life of the reverse osmosis filter element; simultaneously, the wastewater is connected with the domestic water outlet assembly, the wastewater discharge is completed when the domestic water outlet assembly is opened, and the wastewater is recycled, so that the requirements of ecological environment protection are met.
Description
Technical Field
The invention 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 cartridge, unwanted substances remain at the end of the high concentration solution and the lower concentration end of the solution receives purified pure water during the process. The process of the core component reverse osmosis filter element of the water purifier is actually a liquid concentration process, the salt content of 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 the clean water side through the reverse osmosis cartridge. 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.
Disclosure of Invention
The invention 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:
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 communicated with a water source, the pump outlet is communicated with the first water inlet, and the first wastewater port is communicated with the pump inlet through a first branch;
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 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 first current limiting valve is arranged on the first branch, has a current limiting function, has the same flow direction as the first one-way valve, and has a current limiting mode and a full-open mode;
the first high-voltage switch is arranged between the first water outlet and the drinking water inlet;
the second high-pressure switch is arranged between the first waste water inlet and the domestic water inlet;
when the water outlet assembly conducts the drinking water inlet and the water outlet, the first high-pressure switch is triggered, the booster pump is started, and the first flow limiting valve keeps in a flow limiting mode; when the domestic water inlet is communicated with the water outlet, the second high-pressure switch is triggered, and the first flow limiting valve starts a full-open mode.
In an embodiment, a second check valve is disposed between the first water outlet and the first high-pressure switch, and a third check valve is disposed between the first waste water outlet and the second high-pressure switch.
In an embodiment, the waterway system further includes a second reverse osmosis filter element disposed on the first branch, the second reverse osmosis filter element having a second water inlet, a second water outlet and a second waste water inlet, the second water inlet being communicated with the first waste water inlet, the second waste water inlet being communicated with the domestic water inlet via the third check valve, and the second water outlet being communicated with the drinking water inlet via the second check valve.
In an embodiment, the water pump further comprises a second reverse osmosis filter element, the second reverse osmosis filter element is provided with a second water inlet, a second water outlet and a second waste water inlet, the second water inlet is communicated with the pump outlet, the second waste water outlet is communicated with the pump inlet through a second branch, a second flow limiting valve and a fourth one-way valve are arranged on the second branch, the flow direction of the fourth one-way valve flows from the second waste water outlet to the pump inlet, the second flow limiting valve has a flow limiting function, the flow direction of the second flow limiting valve is consistent with that of the fourth one-way valve, the second flow limiting valve has a flow limiting state and a full-open state, the second waste water outlet is communicated with the domestic water inlet through the third one-way valve, and the second high-pressure switch is electrically connected with the second flow limiting valve;
when the water outlet assembly conducts the drinking water inlet and the water outlet, the second flow limiting valve keeps in a flow limiting mode;
when the water outlet assembly conducts the domestic water inlet and the water outlet, the second flow limiting valve starts a full-open mode.
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, and the water outlet end of the first one-way valve is communicated with the pump outlet.
In one embodiment, the waterway system further includes a post-filter disposed in a flow path between the first reverse osmosis filter and the potable water inlet.
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.
In one embodiment, the water outlet flow rate of the preposed 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 one embodiment, the waterway system further includes a post-filter disposed in a flow path between the first reverse osmosis filter and the potable water inlet.
In order to achieve the above object, the present application further provides a water purifier, including a waterway system, the waterway system includes:
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 communicated with a water source, the pump outlet is communicated with the first water inlet, and the first wastewater port is communicated with the pump inlet through a first branch;
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 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 first current limiting valve is arranged on the first branch, has a current limiting function, has the same flow direction as the first one-way valve, and has a current limiting mode and a full-open mode;
the first high-voltage switch is arranged between the first water outlet and the drinking water inlet;
the second high-pressure switch is arranged between the first waste water inlet and the domestic water inlet;
when the water outlet assembly conducts the drinking water inlet and the water outlet, the booster pump is started, and the first flow limiting valve keeps in a flow limiting mode;
when the domestic water inlet is communicated with the water outlet, the booster pump keeps a power-off state, and the first flow limiting valve starts a full-open mode.
The application provides a collocation mechanical faucet's reverse osmosis waste water return-flow system, before passing through the pipeline backward flow to the reverse osmosis filter core with waste water, mix back reentrant reverse osmosis filter core with the running water and carry out the secondary filter. The method can greatly reduce the discharge of waste water while ensuring the performance and the service life of the reverse osmosis filter element; simultaneously, the wastewater is connected with the domestic water outlet assembly, the wastewater discharge is completed when the domestic water outlet assembly is opened, and the wastewater is recycled, so that the requirements of ecological environment protection are met.
When a user opens the domestic water outlet assembly, 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 scaling risk of the reverse osmosis filter element is reduced, and the service life of the reverse osmosis filter element is prolonged; meanwhile, the process can flush the first branch and the first flow limiting valve, so that the risk of blockage of the first flow limiting valve due to scaling is reduced, and the service life of the reverse osmosis filter element is further prolonged; when the domestic faucet is opened, the waste water generated and accumulated in the water making process can be discharged through the water outlet for domestic water, so that the waste water utilization is realized in the real sense.
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.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 11a | First reverse |
111 | |
| 112 | The |
113 | First |
| 11b | Second reverse |
114 | |
| 115 | |
116 | Second |
| 12 | |
121 | |
| 122 | Pump outlet | P1 | First branch |
| P2 | |
14a | First |
| 14b | Second |
15a | |
| 15b | |
15c | |
| 15d | |
16a | A first |
| 16b | Second high- |
13 | |
| 131 | |
132 | Water inlet for |
| 133 | |
17a | |
| 17b | Rear filter element |
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 of "first", "second", etc. in an embodiment 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 implicitly indicating 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 A and B satisfied 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 application provides a waterway system and a water purifier comprising the waterway system.
The 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 one-way valve 15a, a first flow limiting valve 14a, a first high-pressure switch 16a and a second high-pressure switch 16 b. The first reverse osmosis filter element 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 configured to communicate with a water source, the pump outlet 122 communicates with the first water inlet 111, and the first waste water inlet 113 communicates with the pump inlet 121 through a first branch P1; 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 check valve 15a is disposed on the first branch P1, and the flow direction of the first check valve 15a flows from the first waste water port 113 to the pump inlet 121; the first flow limiting valve 14a is arranged on the first branch P1, the first flow limiting valve 14a has a flow limiting function, the flow direction of the first flow limiting valve 14a is consistent with that of the first one-way valve 15a, and the first flow limiting valve 14a has a flow limiting mode and a full-open mode; the first high-pressure switch 16a is disposed between the first water outlet 112 and the drinking water inlet 131; the second high pressure switch 16b is disposed between the first waste water port 113 and the domestic water inlet 132.
When the outlet assembly 13 conducts the drinking water inlet 131 and the water outlet 133, the first high-pressure switch 16a is triggered, the booster pump 12 is started, and the first flow limiting valve 14a maintains the flow limiting mode. When the domestic water inlet 132 and the drain 133 are opened, the first high-pressure switch 16a is triggered and the first flow restriction valve 14a starts the fully open mode.
The invention provides a reverse osmosis zero-wastewater system matched with a mechanical double-faucet, which is characterized in that wastewater flows back to the front of a 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. The method can greatly reduce the discharge of waste water while ensuring the performance and the service life of the first reverse osmosis filter element 11 a; simultaneously, the wastewater is connected with the domestic faucet, the wastewater discharge is completed when the domestic faucet is opened, and the wastewater is secondarily utilized, so that the requirement of ecological environmental protection is met.
When a user opens the life faucet, tap water with lower ion concentration can replace waste water with high ion concentration accumulated at the waste water side of the first reverse osmosis filter element 11a, and 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, 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 first branch P1 and the first flow limiting valve 14a can be flushed in the process, the risk of blockage of the first flow limiting valve 14a due to scaling is reduced, and the service life of the reverse osmosis filter element 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.
Please refer to table one, after the waterway system continuously operates for 15min, the TDS of the effluent is no longer significantly increased (the TDS of the raw water is 140ppm), and after the waterway system continuously operates for 30min, the TDS of the effluent is 46ppm, which still meets the drinking water standard.
Table-wastewater recirculation system operating data
Besides the wastewater of the first reverse osmosis filter element 11a flows back to the reverse osmosis filter element through the first branch P1, the system also connects the reverse osmosis filter element wastewater with a domestic faucet, the domestic faucet is opened by a user to complete the flushing of the reverse osmosis filter element and the first branch P1, the wastewater is discharged for the domestic use of the user, the secondary utilization of the wastewater is completed, and the requirement of ecological environmental protection is met.
The first embodiment is as follows: please refer to fig. 1. A mechanical double-water tap is added into the wastewater backflow system, a second one-way valve 15b is arranged between the first water outlet 112 and the first high-pressure switch 16a, and a third one-way valve 15c is arranged between the first wastewater outlet 113 and the second high-pressure switch 16 b.
The first flow restriction valve 14a on the first branch P1 is a valve body having a flow restriction function. The check valve is combined with the high-voltage switch, so that frequent starting is avoided: 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 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): when the first high-voltage switch 16a detects the pressure change, the booster pump 12 is started to start 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 (the life water inlet 132 is communicated with the water outlet 133): the second high-pressure switch 16b detects the pressure change, and opens the first flow-limiting valve 14 a; at this time, the first reverse osmosis filter element 11a does not produce pure water, tap water enters the first reverse osmosis filter element 11a through the booster pump 12 (the pump is not started), then flows out of the first waste water outlet 113 in two ways, flows back to the booster pump 12 through the first flow limiting valve 14a in one way, is mixed with the tap water and then passes through the first reverse osmosis filter element 11a again, and because the first flow limiting valve 14a is in an open state and has a large flow, the first branch P1 and the first flow limiting valve 14a can be flushed, 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 prolonged. The other path is directly discharged through a domestic tap for domestic water, and the residual raw wastewater in part of the system is discharged through the domestic tap. Namely, when a user opens the life faucet, the flushing program of the system is started, tap water with lower ion concentration can replace waste water with high ion concentration accumulated at the waste water side of the first reverse osmosis filter element 11a, and 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, 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 first branch P1 and the first flow limiting valve 14a can be flushed in the process, the risk that the first flow limiting valve 14a is blocked 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.
Example two: please refer to fig. 2. 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 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): when the first high-voltage switch 16a detects the pressure change, the booster pump 12 is started to start 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 (the life water inlet 132 is communicated with the water outlet 133): the second high-pressure switch 16b detects the pressure change, and opens the first flow-limiting valve 14 a; at this time, the first reverse osmosis filter element 11a does not produce pure water, tap water enters the first reverse osmosis filter element 11a through the booster pump 12 (the pump is not started), then flows out of the first waste water outlet 113 in two ways, flows back to the booster pump 12 through the first flow limiting valve 14a in one way, is mixed with the tap water and then passes through the first reverse osmosis filter element 11a again, and because the first flow limiting valve 14a is in an open state and has a large flow, the first branch P1 and the first flow limiting valve 14a can be flushed, 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 prolonged. The other path is directly discharged through a domestic tap for domestic water, and the residual raw wastewater in part of the system is discharged through the domestic tap. Namely, when a user opens the life faucet, the flushing program of the system is started, tap water with lower ion concentration can replace waste water with high ion concentration accumulated at the waste water side of the first reverse osmosis filter element 11a, and 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, 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 first branch P1 and the first flow limiting valve 14a can be flushed in the process, the risk that the first flow limiting valve 14a is blocked 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.
Example three: please refer to fig. 3. In this embodiment, on the basis of the first embodiment, a post-filter 17b is added to the pure water outlet pipe of the first reverse osmosis filter 11a before the second check valve 15b and the first high-pressure switch 16a, 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): when the first high-voltage switch 16a detects the pressure change, the booster pump 12 is started to start 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 water outlet 133): the second high-pressure switch 16b detects the pressure change, and opens the first flow-limiting valve 14 a; at this time, the first reverse osmosis filter element 11a does not produce pure water, tap water enters the first reverse osmosis filter element 11a through the booster pump 12 (the pump is not started), then flows out of the first waste water outlet 113 in two ways, flows back to the booster pump 12 through the first flow limiting valve 14a in one way, is mixed with the tap water and then passes through the first reverse osmosis filter element 11a again, and because the first flow limiting valve 14a is in an open state and has a large flow, the first branch P1 and the first flow limiting valve 14a can be flushed, 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 prolonged. The other path is directly discharged through a domestic tap for domestic water, and the residual raw wastewater in part of the system is discharged through the domestic tap. Namely, when a user opens the life faucet, the flushing program of the system is started, tap water with lower ion concentration can replace waste water with high ion concentration accumulated at the waste water side of the first reverse osmosis filter element 11a, and 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, 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 first branch P1 and the first flow limiting valve 14a can be flushed in the process, the risk that the first flow limiting valve 14a is blocked 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.
Example four: please refer to fig. 4. In the embodiment, on the basis of the first embodiment, a preposed filter element 17a is additionally arranged at the upstream of the booster pump 12, and a postpositive filter element 17b is additionally arranged on a pure water outlet pipeline of the reverse osmosis filter element and in front of a second one-way valve 15b and a first high-pressure switch 16 a; 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 tap: when the first high-voltage switch 16a detects the pressure change, the booster pump 12 is started to start 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 turns on the life tap (the life water inlet 132 is communicated with the water outlet 133): the second high-pressure switch 16b detects the pressure change, and opens the first flow-limiting valve 14 a; at this time, the first reverse osmosis filter element 11a does not produce pure water, tap water enters the first reverse osmosis filter element 11a through the booster pump 12 (the pump is not started), then flows out of the first waste water outlet 113 in two ways, flows back to the booster pump 12 through the first flow limiting valve 14a in one way, is mixed with the tap water and then passes through the first reverse osmosis filter element 11a again, and because the first flow limiting valve 14a is in an open state and has a large flow, the first branch P1 and the first flow limiting valve 14a can be flushed, 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 prolonged. The other path is directly discharged through a domestic tap for domestic water, and the residual raw wastewater in part of the system is discharged through the domestic tap. Namely, when a user opens the life faucet, the flushing program of the system is started, tap water with lower ion concentration can replace waste water with high ion concentration accumulated at the waste water side of the first reverse osmosis filter element 11a, and 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, 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 first branch P1 and the first flow limiting valve 14a can be flushed in the process, the risk that the first flow limiting valve 14a is blocked 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.
Example five: please refer to fig. 5. 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 the first branch P1, 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 inlet 116, the second water inlet 114 is communicated with the first waste water inlet 113, the second waste water inlet 116 is communicated with the domestic water inlet 132 through a third one-way valve 15c, and the second water outlet 115 is communicated with the drinking water inlet 131 through a second one-way valve 15 b.
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 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 turns on the drinking water tap (the drinking water inlet 131 is communicated with the water outlet 133): when the first high-voltage switch 16a detects the pressure change, the booster pump 12 is started to start water production; 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 second one-way valve 15b, the waste water flows into the second reverse osmosis filter element 11b and is subjected to secondary filtration, the pure water flows to the second one-way valve 15b 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 water outlet 133): the second high-pressure switch 16b detects the pressure change, and opens the first flow-limiting valve 14 a; at the moment, the reverse osmosis filter element does not generate pure water, tap water enters the first reverse osmosis filter element 11a through the booster pump 12 and then flows out from the wastewater side of the first reverse osmosis filter element 11a, enters the second reverse osmosis filter element 11b and then flows out from the wastewater side of the second reverse osmosis filter element 11b in two paths, one path of tap water 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 before flowing back to the booster pump 12 through the first flow limiting valve 14a, and the first flow limiting valve 14a is in an open state and has a large flow, so that the first branch P1 and the first flow limiting valve 14a can be flushed, 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 prolonged; the other path is directly discharged through a domestic tap for domestic water, and the residual raw wastewater in part of the system is discharged through the domestic tap. Namely, when a user opens the domestic faucet, a flushing program of the system is started, tap water with lower ion concentration can replace waste water with high ion concentration accumulated at the waste water side of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, and 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, 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 first branch P1 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.
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): when the first high-voltage switch 16a detects the pressure change, the booster pump 12 is started to start water production; tap water flows into the first reverse osmosis filter element 11a after being roughly filtered by the front filter element 17a, and then is divided into one path of pure water and one path of wastewater, the pure water flows to the second one-way valve 15b, 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 being secondarily filtered, the pure water flows to the second one-way valve 15b 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 to enter the first reverse osmosis filter element 11a again for secondary filtration, and zero wastewater discharge is realized.
The user turns on the life tap (the life water inlet 132 is communicated with the water outlet 133): the second high-pressure switch 16b detects the pressure change, and opens the first flow-limiting valve 14 a; at the moment, the reverse osmosis filter element does not generate pure water, tap water enters the first reverse osmosis filter element 11a through the booster pump 12 and then flows out from the wastewater side of the first reverse osmosis filter element 11a, enters the second reverse osmosis filter element 11b and then flows out from the wastewater side of the second reverse osmosis filter element 11b in two paths, one path of tap water 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 before flowing back to the booster pump 12 through the first flow limiting valve 14a, and the first flow limiting valve 14a is in an open state and has a large flow, so that the first branch P1 and the first flow limiting valve 14a can be flushed, 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 prolonged; the other path is directly discharged through a domestic tap for domestic water, and the residual raw wastewater in part of the system is discharged through the domestic tap. Namely, when a user opens the domestic faucet, a flushing program of the system is started, tap water with lower ion concentration can replace waste water with high ion concentration accumulated at the waste water side of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, and 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, 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 first branch P1 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.
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, 11b, and before the second check valve 15b and the first high-pressure switch 16a, 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): when the first high-voltage switch 16a detects the pressure change, the booster pump 12 is started to start 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 flows to the second one-way valve 15b, 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 second one-way valve 15b 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 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 water outlet 133): the second high-pressure switch 16b detects the pressure change, and opens the first flow-limiting valve 14 a; at the moment, the reverse osmosis filter element does not generate pure water, tap water enters the first reverse osmosis filter element 11a through the booster pump 12 and then flows out from the wastewater side of the first reverse osmosis filter element 11a, enters the second reverse osmosis filter element 11b and then flows out from the wastewater side of the second reverse osmosis filter element 11b in two paths, one path of tap water 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 before flowing back to the booster pump 12 through the first flow limiting valve 14a, and the first flow limiting valve 14a is in an open state and has a large flow, so that the first branch P1 and the first flow limiting valve 14a can be flushed, 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 prolonged; the other path is directly discharged through a domestic tap for domestic water, and the residual raw wastewater in part of the system is discharged through the domestic tap. Namely, when a user opens the domestic faucet, a flushing program of the system is started, tap water with lower ion concentration can replace waste water with high ion concentration accumulated at the waste water side of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, and 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, 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 first branch P1 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.
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 pure water outlet pipelines of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, and in front of the second one-way valve 15b and the first high-pressure switch 16 a; 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): when the first high-voltage switch 16a detects the pressure change, the booster pump 12 is started to start water production; tap water is roughly filtered by the front filter element 17a and then flows into the first reverse osmosis filter element 11a, and then is divided into one path of pure water and one path of wastewater, the pure water flows to the second one-way valve 15b, the wastewater flows into the second reverse osmosis filter element 11b and is secondarily filtered, and then is divided into one path of pure water and one path of wastewater, the pure water flows to the second one-way valve 15b 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 front of the pump 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 (the life water inlet 132 is communicated with the water outlet 133): the second high-pressure switch 16b detects the pressure change, and opens the first flow-limiting valve 14 a; at the moment, the reverse osmosis filter element does not generate pure water, tap water enters the first reverse osmosis filter element 11a through the booster pump 12 and then flows out from the wastewater side of the first reverse osmosis filter element 11a, enters the second reverse osmosis filter element 11b and then flows out from the wastewater side of the second reverse osmosis filter element 11b in two paths, one path of tap water 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 before flowing back to the booster pump 12 through the first flow limiting valve 14a, and the first flow limiting valve 14a is in an open state and has a large flow, so that the first branch P1 and the first flow limiting valve 14a can be flushed, 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 prolonged; the other path is directly discharged through a domestic tap for domestic water, and the residual raw wastewater in part of the system is discharged through the domestic tap. Namely, when a user opens the domestic faucet, a flushing program of the system is started, tap water with lower ion concentration can replace waste water with high ion concentration accumulated at the waste water side of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, and 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, 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 first branch P1 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.
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 port 116, the second water inlet 114 is communicated with the pump outlet 122, the second waste water port 116 is communicated with the pump inlet 121 through a second branch P2, a second flow limiting valve 14b and a fourth one-way valve 15d are arranged on the second branch P2, the flow direction of the fourth one-way valve 15d flows from the second waste water port 116 to the pump inlet 121, the second flow limiting valve 14b has a flow limiting function, the flow direction of the second flow limiting valve 14b is consistent with that of the fourth one-way valve 15d, the second flow limiting valve 14b has a flow limiting state and a full-open state, the second waste water port 116 is communicated with the domestic water inlet 132 through the third one-way valve 15c, and the second high-pressure switch 16b is electrically connected with the second flow limiting valve 14 b. When the outlet assembly 13 communicates the drinking water inlet 131 with the outlet 133, the second flow restriction valve 14b maintains the flow restriction mode. When the outlet assembly 13 communicates the domestic water inlet 132 with the outlet 133, the second flow restriction valve 14b starts the fully open mode.
The user turns on the drinking water tap (the drinking water inlet 131 is communicated with the water outlet 133): when the first high-voltage switch 16a detects the pressure change, the booster pump 12 is started to start 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 (the life water inlet 132 is communicated with the water outlet 133): the second high pressure switch 16b detects a pressure change and opens the first and second restriction valves 14a and 14b, when the two reverse osmosis cartridges do not produce pure water. Tap water respectively enters the two reverse osmosis filter elements after passing through the booster pump 12 (the pump is not started) and then respectively flows out of two paths from the waste water sides of the two filter elements, one path of the tap water is mixed with the tap water and then enters the two reverse osmosis filter elements again before flowing back to the booster pump 12 through the two flow limiting valves, and the two flow limiting valves are in an open state and have larger flow, so that the two branch paths and the two flow limiting valves can be flushed, the risk of blockage of the two flow limiting valves due to scaling is reduced, and the service life of the reverse osmosis filter elements is prolonged. The other path is directly discharged through a domestic tap for domestic water, and the residual raw wastewater in part of the system is discharged through the domestic tap. When a user opens the domestic faucet, the flushing program of the system is started, tap water with lower ion concentration can replace waste water with high ion concentration accumulated on the waste water side of the two reverse osmosis filter elements, and the problem of first cup of water is effectively solved. And because the domestic water flow is great, when passing through two reverse osmosis filter cores, can wash away the pollutant such as incrustation scale, organic matter of two reverse osmosis filter core waste water side surface deposit, reduce two reverse osmosis filter core scale deposit risks, prolong two reverse osmosis filter core life. Meanwhile, the process can flush the two branch circuits and the two flow limiting valves, 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.
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): when the first high-voltage switch 16a detects the pressure change, the booster pump 12 is started to start 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 two flow limiting valves and 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 (the life water inlet 132 is communicated with the water outlet 133): the second high pressure switch 16b detects a pressure change and opens the first and second restriction valves 14a and 14b, when the two reverse osmosis cartridges do not produce pure water. Tap water respectively enters the two reverse osmosis filter elements after passing through the booster pump 12 (the pump is not started) and then respectively flows out of two paths from the waste water sides of the two filter elements, one path of the tap water is mixed with the tap water and then enters the two reverse osmosis filter elements again before flowing back to the booster pump 12 through the two flow limiting valves, and the two flow limiting valves are in an open state and have larger flow, so that the two branch paths and the two flow limiting valves can be flushed, the risk of blockage of the two flow limiting valves due to scaling is reduced, and the service life of the reverse osmosis filter elements is prolonged. The other path is directly discharged through a domestic tap for domestic water, and the residual raw wastewater in part of the system is discharged through the domestic tap. When a user opens the domestic faucet, the flushing program of the system is started, tap water with lower ion concentration can replace waste water with high ion concentration accumulated on the waste water side of the two reverse osmosis filter elements, and the problem of first cup of water is effectively solved. And because the domestic water flow is great, when passing through two reverse osmosis filter cores, can wash away the pollutant such as incrustation scale, organic matter of two reverse osmosis filter core waste water side surface deposit, reduce two reverse osmosis filter core scale deposit risks, prolong two reverse osmosis filter core life. Meanwhile, the process can flush the two branch circuits and the two flow limiting valves, 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.
Example eleven: please refer to fig. 11. In this embodiment, on the basis of the ninth embodiment, a post-filter element 17b is added on a pure water outlet converging pipeline of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, in front of a one-way valve and a first high-pressure switch 16 a; 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 1 detects the pressure change, starts the booster pump 12 and starts to produce water; 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 two flow limiting valves, 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 water outlet 133): the second high pressure switch 16b detects a pressure change and opens the first and second restriction valves 14a and 14b, when the two reverse osmosis cartridges do not produce pure water. Tap water respectively enters the two reverse osmosis filter elements after passing through the booster pump 12 (the pump is not started) and then respectively flows out of two paths from the waste water sides of the two filter elements, one path of the tap water is mixed with the tap water and then enters the two reverse osmosis filter elements again before flowing back to the booster pump 12 through the two flow limiting valves, and the two flow limiting valves are in an open state and have larger flow, so that the two branch paths and the two flow limiting valves can be flushed, the risk of blockage of the two flow limiting valves due to scaling is reduced, and the service life of the reverse osmosis filter elements is prolonged. The other path is directly discharged through a domestic tap for domestic water, and the residual raw wastewater in part of the system is discharged through the domestic tap. When a user opens the domestic faucet, the flushing program of the system is started, tap water with lower ion concentration can replace waste water with high ion concentration accumulated on the waste water side of the two reverse osmosis filter elements, and the problem of first cup of water is effectively solved. And because the domestic water flow is great, when passing through two reverse osmosis filter cores, can wash away the pollutant such as incrustation scale, organic matter of two reverse osmosis filter core waste water side surface deposit, reduce two reverse osmosis filter core scale deposit risks, prolong two reverse osmosis filter core life. Meanwhile, the process can flush the two branch circuits and the two flow limiting valves, 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.
Example twelve: please refer to fig. 12. In the 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 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 one-way valve and a first high-pressure switch 16 a; 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): when the first high-voltage switch 16a detects the pressure change, the booster pump 12 is started to start 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 front of the booster pump 12 through the two flow limiting valves and is mixed with the effluent of the 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 water outlet 133): the second high pressure switch 16b detects a pressure change and opens the first and second restriction valves 14a and 14b, when the two reverse osmosis cartridges do not produce pure water. Tap water respectively enters the two reverse osmosis filter elements after passing through the booster pump 12 (the pump is not started) and then respectively flows out of two paths from the waste water sides of the two filter elements, one path of the tap water is mixed with the tap water and then enters the two reverse osmosis filter elements again before flowing back to the booster pump 12 through the two flow limiting valves, and the two flow limiting valves are in an open state and have larger flow, so that the two branch paths and the two flow limiting valves can be flushed, the risk of blockage of the two flow limiting valves due to scaling is reduced, and the service life of the reverse osmosis filter elements is prolonged. The other path is directly discharged through a domestic tap for domestic water, and the residual raw wastewater in part of the system is discharged through the domestic tap. When a user opens the domestic faucet, the flushing program of the system is started, tap water with lower ion concentration can replace waste water with high ion concentration accumulated on the waste water side of the two reverse osmosis filter elements, and the problem of first cup of water is effectively solved. And because the domestic water flow is great, when passing through two reverse osmosis filter cores, can wash away the pollutant such as incrustation scale, organic matter of two reverse osmosis filter core waste water side surface deposit, reduce two reverse osmosis filter core scale deposit risks, prolong two reverse osmosis filter core life. Meanwhile, the process can flush the two branch circuits and the two flow limiting valves, 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.
In order to facilitate the control of the inflow water, on the basis of the above embodiment, an inflow valve may be disposed between the upstream of the pre-filter 17a or the intersection of the flow path where the pump inlet 121 is located and the first branch P1 and the pre-filter 17a, and the inflow valve is a valve body with a full-open or full-close function.
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 (11)
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 communicated with a water source, the pump outlet is communicated with the first water inlet, and the first wastewater port is communicated with the pump inlet through a first branch;
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 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 first current limiting valve is arranged on the first branch, has a current limiting function, has the same flow direction as the first one-way valve, and has a current limiting mode and a full-open mode;
the first high-voltage switch is arranged between the first water outlet and the drinking water inlet;
the second high-pressure switch is arranged between the first waste water inlet and the domestic water inlet;
when the water outlet assembly conducts the drinking water inlet and the water outlet, the first high-pressure switch is triggered, the booster pump is started, and the first flow limiting valve keeps in a flow limiting mode;
when the domestic water inlet is communicated with the water outlet, the second high-pressure switch is triggered, and the first flow limiting valve starts a full-open mode.
2. The waterway system of claim 1, wherein a second check valve is disposed between the first water outlet and the first high pressure switch, and a third check valve is disposed between the first waste water outlet and the second high pressure switch.
3. The waterway system of claim 2, further comprising a second reverse osmosis cartridge disposed on the first branch, the second reverse osmosis cartridge having a second water inlet, a second water outlet, and a second waste water inlet, the second water inlet in communication with the first waste water inlet, the second waste water inlet in communication with the domestic water inlet via the third one-way valve, and the second water outlet in communication with the potable water inlet via the second one-way valve.
4. 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 outlet, the second water inlet being in communication with the pump outlet, the second waste water outlet being in communication with the pump inlet through a second branch, a second flow restriction valve and a fourth check valve being disposed on the second branch, a flow direction of the fourth check valve flowing from the second waste water outlet to the pump inlet, the second flow restriction valve having a flow restriction function, the flow direction of the second flow restriction valve being identical to that of the fourth check valve, the second flow restriction valve having a flow restriction state and a full open state, the second waste water outlet being in communication with the domestic water inlet through the third check valve, the second high pressure switch being electrically connected to the second flow restriction valve;
when the water outlet assembly conducts the drinking water inlet and the water outlet, the second flow limiting valve keeps in a flow limiting mode;
when the water outlet assembly conducts the domestic water inlet and the water outlet, the second flow limiting valve starts a full-open mode.
5. The waterway system of any one of claims 2-4, further comprising a pre-filter disposed upstream of the booster pump, the water outlet of the first one-way valve being in communication with the pump outlet.
6. The waterway system of claim 5, wherein the outflow rate of the pre-filter element is less than 8L/min.
7. The waterway system of claim 6, wherein a fill valve is disposed between the prepositioned filter element and a location upstream of the prepositioned filter element or where the pump inlet is located at the intersection of the flow path and the first branch.
8. The waterway system of claim 6, further comprising a post-filter disposed in the flow path between the first reverse osmosis filter and the potable water inlet.
9. The waterway system of claim 8, 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.
10. The waterway system of any one of claims 2-4, further comprising a post-filter disposed in the flow path between the first reverse osmosis filter and the potable water inlet.
11. A water purifier comprising a waterway system according to any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111645477.1A CN114275848A (en) | 2021-12-29 | 2021-12-29 | Waterway system and water purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111645477.1A CN114275848A (en) | 2021-12-29 | 2021-12-29 | Waterway system and water purifier |
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| Publication Number | Publication Date |
|---|---|
| CN114275848A true CN114275848A (en) | 2022-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111645477.1A Withdrawn CN114275848A (en) | 2021-12-29 | 2021-12-29 | Waterway system and water purifier |
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| Country | Link |
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| CN (1) | CN114275848A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202139121U (en) * | 2011-07-19 | 2012-02-08 | 上海奔泰水处理设备有限公司 | Water-purifying machine with reverse osmosis membrane |
| CN105923810A (en) * | 2016-06-15 | 2016-09-07 | 王寒 | Dual-membrane dual-core cascaded slightly-concentrated water reverse osmosis device and control method thereof |
| CN106630232A (en) * | 2017-01-18 | 2017-05-10 | 杭州老板电器股份有限公司 | Bucket-free reverse osmosis water purifier system capable of improving water production rate and control method |
| CN212315745U (en) * | 2020-04-30 | 2021-01-08 | 佛山市顺德区美的饮水机制造有限公司 | Water purifier |
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2021
- 2021-12-29 CN CN202111645477.1A patent/CN114275848A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202139121U (en) * | 2011-07-19 | 2012-02-08 | 上海奔泰水处理设备有限公司 | Water-purifying machine with reverse osmosis membrane |
| CN105923810A (en) * | 2016-06-15 | 2016-09-07 | 王寒 | Dual-membrane dual-core cascaded slightly-concentrated water reverse osmosis device and control method thereof |
| CN106630232A (en) * | 2017-01-18 | 2017-05-10 | 杭州老板电器股份有限公司 | Bucket-free reverse osmosis water purifier system capable of improving water production rate and control method |
| CN212315745U (en) * | 2020-04-30 | 2021-01-08 | 佛山市顺德区美的饮水机制造有限公司 | Water purifier |
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Application publication date: 20220405 |