CN216808229U - Waterway system with double TDS probes - Google Patents
Waterway system with double TDS probes Download PDFInfo
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- CN216808229U CN216808229U CN202123431291.4U CN202123431291U CN216808229U CN 216808229 U CN216808229 U CN 216808229U CN 202123431291 U CN202123431291 U CN 202123431291U CN 216808229 U CN216808229 U CN 216808229U
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- 239000000523 sample Substances 0.000 title claims abstract description 81
- 239000002351 wastewater Substances 0.000 claims abstract description 372
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 369
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 308
- 235000020188 drinking water Nutrition 0.000 claims description 66
- 239000003651 drinking water Substances 0.000 claims description 66
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 28
- 238000011045 prefiltration Methods 0.000 claims description 20
- 230000009977 dual effect Effects 0.000 claims description 19
- 238000011144 upstream manufacturing Methods 0.000 claims description 11
- 238000001728 nano-filtration Methods 0.000 claims description 8
- 238000000108 ultra-filtration Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 3
- 239000008399 tap water Substances 0.000 abstract description 91
- 235000020679 tap water Nutrition 0.000 abstract description 91
- 238000000034 method Methods 0.000 abstract description 66
- 238000001914 filtration Methods 0.000 abstract description 21
- 238000010612 desalination reaction Methods 0.000 abstract description 15
- 238000007599 discharging Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 description 48
- 150000002500 ions Chemical class 0.000 description 25
- 230000008859 change Effects 0.000 description 24
- 238000004519 manufacturing process Methods 0.000 description 22
- 230000008569 process Effects 0.000 description 19
- 238000005406 washing Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 12
- 230000035622 drinking Effects 0.000 description 12
- 239000003344 environmental pollutant Substances 0.000 description 12
- 231100000719 pollutant Toxicity 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
- 230000004907 flux Effects 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 2
- 230000003204 osmotic effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000283690 Bos taurus Species 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000020680 filtered tap water Nutrition 0.000 description 1
- 229910001410 inorganic ion Inorganic materials 0.000 description 1
- 239000007788 liquid 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
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
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Abstract
The utility model discloses a waterway system with double TDS probes, which is characterized in that waste water flows back to a first reverse osmosis filter element through a pipeline, is mixed with tap water and then enters the first 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 first reverse osmosis filter element; meanwhile, the waste water is connected with an original tap water faucet of a household kitchen of a user, the waste water discharge is completed when the tap water faucet is opened, and meanwhile, the waste water is secondarily utilized, so that the requirement of ecological environment protection is met. In addition, a TDS probe and a waste water direct discharge pipeline are added for directly discharging waste water when the pure water effluent desalination rate is not qualified.
Description
Technical Field
The utility model relates to the technical field of water purifiers, in particular to a waterway system with double TDS probes.
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 this process. The process of the core part reverse osmosis filter element of the water path system 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 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.
SUMMERY OF THE UTILITY MODEL
The main objective of this application is to provide a waterway system with two TDS probes, aims at solving the too much problem that is unfavorable for resource utilization of the waste water that waterway system in the current water purifier produced.
To achieve the above object, the present invention provides a waterway system with a dual TDS probe, comprising:
a first wastewater direct discharge pipeline, one end of which is communicated with a pipeline between the wastewater inlet of the first reverse osmosis filter element and the domestic water inlet, wherein a first flow limiting valve and a first switch valve are sequentially arranged on the first wastewater direct discharge pipeline along the upstream to downstream direction, and the first flow limiting valve has a flow limiting state and a full-open state; a pipeline between the first flow limiting valve and the first switch valve is communicated with a water inlet of the booster pump through a first branch pipeline, and a first one-way valve which flows towards the water inlet of the booster pump is arranged on the first branch pipeline; a second high-pressure valve component is arranged on a pipeline between the waste water inlet of the first reverse osmosis filter element and the domestic water inlet;
the first TDS probe and the second TDS probe are respectively and correspondingly arranged at the upstream of the booster pump and between the first reverse osmosis filter element and the first high-pressure valve assembly;
and the electric control unit is connected with the booster pump, the first high-pressure valve assembly, the second high-pressure valve assembly, the first flow limiting valve, the first switch valve, the first TDS probe and the second TDS probe.
The first high pressure valve comprises a first high pressure switch and a second one-way valve, the second one-way valve being located upstream of the first high pressure switch; the second high pressure valve assembly includes a second high pressure switch and a third one-way valve located upstream of the second high pressure switch.
In an embodiment, the waterway system with the double TDS probes further includes a second reverse osmosis filter element disposed on a flow path between the waste water port of the first reverse osmosis filter element and the first flow limiting valve, a water inlet of the second reverse osmosis filter element is communicated with the waste water port of the first reverse osmosis filter element, the waste water port of the second reverse osmosis filter element is communicated with the water inlet end of the first flow limiting valve, and a water outlet of the second reverse osmosis filter element is communicated with the water outlet of the first reverse osmosis filter element and the flow path between the second TDS probes.
In an embodiment, the waterway system with the double TDS probes further comprises a second reverse osmosis filter element, a water inlet of the second reverse osmosis filter element is communicated with a water outlet of the booster pump, a wastewater outlet of the second reverse osmosis filter element is communicated with one end of a second wastewater direct discharge pipeline, and a second flow limiting valve and a second switch valve are arranged on the second wastewater direct discharge pipeline; the second switch valve is positioned at the downstream of the second flow limiting valve, a flow path between the second switch valve and the second flow limiting valve is communicated with the pump inlet through a second branch path, and a fourth one-way valve which flows towards the water inlet of the booster pump is arranged on the second branch path;
and the electric control unit is electrically connected with the second flow limiting valve and the second switch valve.
In an embodiment, the waterway system with the dual TDS probe further includes a pre-filter disposed between the booster pump and the first TDS probe.
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 with the dual TDS probe further comprises a post-filter element disposed between the first reverse osmosis filter element and the first high pressure valve assembly.
In one embodiment, the effluent flow rate of the preposed filter element is less than or equal to 8L/min; the preposed filter core is a PP filter core, an activated carbon filter core, an ultrafiltration filter core or a nanofiltration filter core; the post-positioned filter element is an activated carbon filter element.
The waterway system with the double-TDS probe further comprises a rear filter element, and the rear filter element is arranged on a flow path between the first reverse osmosis filter element and the second one-way valve.
In one embodiment, the predetermined salt rejection rate is 70% to 95%.
The application provides a high water saving system of reverse osmosis of collocation mechanical faucet, before passing through the pipeline backward flow to first reverse osmosis filter core with waste water, reentrant first reverse osmosis filter core carries out the secondary filter after mixing with the running water. 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; meanwhile, 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 requirements of ecological environment protection are met. In addition, a first waste water direct discharge pipeline is arranged, and can be used for directly discharging waste water when necessary.
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 first embodiment of a waterway system with a dual TDS probe according to the present application;
FIG. 2 is a schematic flow diagram of a second embodiment of a waterway system with a dual TDS probe according to the present application;
FIG. 3 is a schematic flow diagram of a third embodiment of a waterway system with dual TDS probes according to the present application;
FIG. 4 is a schematic flow diagram of a fourth embodiment of a waterway system with a dual TDS probe according to the present application;
FIG. 5 is a schematic flow diagram of a fifth embodiment of a waterway system with dual TDS probes 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 with a dual TDS probe;
FIG. 7 is a schematic flow diagram of a seventh embodiment of a waterway system with dual TDS probes according to the present application;
FIG. 8 is a schematic flow diagram of an eighth embodiment of a waterway system with dual TDS probes according to the present application;
FIG. 9 is a schematic flow diagram of a ninth embodiment of a waterway system with dual TDS probes according to the present application;
FIG. 10 is a schematic flow diagram of a tenth embodiment of a waterway system with dual TDS probes according to the present application;
FIG. 11 is a schematic flow diagram of an eleventh embodiment of a waterway system according to the present application with a dual TDS probe;
FIG. 12 is a schematic flow diagram of a twelfth embodiment of a waterway system of the present application with a dual TDS probe.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 11a | First reverse |
111 | |
| 112 | The |
113 | The first |
| 11b | Second reverse |
114 | |
| 115 | |
116 | Second |
| 12 | |
121 | |
| 122 | Pump outlet | P1 | |
| 13 | Water-out combined cattle | P2 | |
| 131 | |
132 | Water inlet for |
| 133 | Water outlet | Q1 | First wastewater |
| 14a | First flow limiting valve | Q2 | Second wastewater |
| 15a | |
14b | Second |
| 15b | |
15c | |
| 16a | A first |
15d | |
| 16b | Second high- |
18a | |
| 18b | |
17a | |
| 19a | |
17b | |
| 19b | Second TDS Probe | S1 | First pure water pipeline |
| S2 | Second pure water pipeline |
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 described clearly and completely 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 collocation mechanical tap's reverse osmosis high recovery rate intelligence system. And (3) returning the wastewater generated by the reverse osmosis filter element in the water purification process to the front of the reverse osmosis filter element through a pipeline, mixing the wastewater with tap water, and then feeding the wastewater into the reverse osmosis filter element again for secondary filtration.
The waste water that the reverse osmosis filter core produced except that before flowing back to the filter core through the return line, this system still links to each other reverse osmosis filter core waste water with life tap, opens life tap through the user and accomplishes washing reverse osmosis filter core and waste water return line, and waste water discharge supplies the user to live and uses, accomplishes the reutilization to waste water, satisfies ecological environmental protection's requirement. In addition, a direct waste water discharge pipeline is provided, and the direct waste water discharge pipeline can be used for directly discharging waste water when necessary. In addition, still added the straight pipeline of second TDS probe and waste water of a way, can be used to directly discharge waste water when detecting that the effluent desalination rate is not up to standard.
The first embodiment is as follows: see fig. 1. A mechanical double-water tap is added into the wastewater reflux system, the pure water outlet end of the first reverse osmosis filter element 11a is connected with the drinking water end of the double-water tap, and a second one-way valve 15b and a first high-pressure switch 16a are sequentially added on a pipeline; the waste water outlet end 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, and a third one-way valve 15c and a second high-pressure switch 16b are sequentially arranged on the pipeline; 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 of the waste water return line is a first waste water direct discharge line Q1 which is used for direct discharge of waste water if necessary. A first TDS probe 19a is arranged at the front end of the first reverse osmosis filter element 11a and the waste water return line and is used for detecting the TDS of the tap water inlet; the rear end of the first reverse osmosis filter element 11a is provided with a second TDS probe 19b for detecting the TDS of the pure water effluent; the first flow limiting valve 14a on the wastewater return line is a valve body with a flow limiting function (in a flow limiting state, the flow is small, the flow can be 5% -80% in a fully open state, and the flow can be 10% -30% in the fully open state preferentially); the first on-off valve 18a on the first wastewater direct discharge pipe Q1 is a valve body having a full-on or full-off function; the second non return valve 15b, in combination with the first high pressure switch 16a, avoids frequent activation: due to the second check valve 15b, when the drinking water tap is closed, water is confined between the second check valve 15b and the tap, the water pressure is kept stable, and the first high-pressure switch 16a receives a stable pressure signal and keeps an off state.
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; 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 flows back to the pump through the first flow limiting valve 14a and is mixed with the tap water to enter 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 second high-pressure switch 16b detects the pressure change, and opens the first flow-limiting valve 14 a; at the moment, 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 waste water port in two ways, one way flows back to the front of the pump through the first flow limiting valve 14a and is mixed with the tap water to pass through the first reverse osmosis filter element 11a again, and the first flow limiting valve 14a is in a fully open state and has a large flow, so that a waste water return water path 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 living water faucet, the flushing program of the system is started, 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 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 backflow waterway 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 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.
Wastewater straight-line procedure 1: 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 the water TDS, consequently, when first TDS probe 19a and second TDS probe 19b detected that the system desalination is less than the setting value (preferred 70-95%), start the straight line procedure of waste water (preferred 5-300s of time), booster pump 12 keeps starting, keeps normal system water state promptly, first ooff valve 18a opens, the waste water that first reverse osmosis filter core 11a produced is discharged along with the straight calandria of waste water, can resume initial level in the play water TDS short time, and weak to drinking water flow influence.
Wastewater straight-line procedure 2: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a waste water direct discharge program (preferably 5-300 s); the booster pump 12 is not started, the first flow limiting valve 14a and the first switch valve 18a are opened, tap water flows out from the wastewater end after entering the first reverse osmosis filter element 11a depending on the pressure of tap water and is directly discharged into the wastewater straight discharge pipeline, so that the replacement of water in the first reverse osmosis filter element 11a and the wastewater pipeline is completed, the first reverse osmosis filter element 11a and the first flow limiting valve 14a are prevented from scaling, and the service lives of the first reverse osmosis filter element 11a and the first flow limiting valve 14a are prolonged. Under the normal condition, the user opens life tap and can accomplish the washing to first reverse osmosis filter core 11a 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 backward flow waste water be detained in first reverse osmosis filter core 11a and return line for a long time, causes the incrustation scale deposit and influences life's problem.
Example two: see 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 can be PP with different forms, activated carbon with different forms, ultrafiltration, nanofiltration, composite filter elements made of the above materials, and the like, and the front effluent flow rate is less than 8L/min. The first TDS probe 19a is before the wastewater return line, before the pre-filter 17a or after the pre-filter 17 a.
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 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 pump through the first flow limiting valve 14a and is mixed with the preposed outlet water to enter the first reverse osmosis filter element 11a again for filtration, and zero discharge of the waste water is realized.
The user turns on the life faucet: the second high-pressure switch 16b detects the pressure change, and opens the first flow-limiting valve 14 a; at the moment, 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 waste water port in two ways, one way flows back to the front of the pump through the first flow limiting valve 14a and is mixed with the tap water to pass through the first reverse osmosis filter element 11a again, and the first flow limiting valve 14a is in a fully open state and has a large flow, so that a waste water return water path 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 living water 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 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 backflow waterway 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 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.
Wastewater straight-line procedure 1: 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 the water TDS, consequently, when first TDS probe 19a and second TDS probe 19b detected that the system desalination is less than the setting value (preferred 70-95%), start the straight line procedure of waste water (preferred 5-300s of time), booster pump 12 keeps starting, keeps normal system water state promptly, first ooff valve 18a opens, the waste water that first reverse osmosis filter core 11a produced is discharged along with the straight calandria of waste water, can resume initial level in the play water TDS short time, and weak to drinking water flow influence.
Wastewater straight-line procedure 2: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a waste water direct discharge program (preferably 5-300 s); when the booster pump 12 is not started, the first flow limiting valve 14a and the first switch valve 18a are opened, tap water flows out from the wastewater end after entering the first reverse osmosis filter element 11a depending on the pressure of tap water, and is directly discharged into the wastewater straight discharge pipeline, so that the replacement of water in the first reverse osmosis filter element 11a and the wastewater pipeline is completed, the first reverse osmosis filter element 11a and the first flow limiting valve 14a are prevented from scaling, and the service lives of the first reverse osmosis filter element 11a and the first flow limiting valve 14a are prolonged. Under the normal condition, the user opens life tap and can accomplish the 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 has got the drinking water, makes backward flow waste water be detained in first reverse osmosis filter core 11a and return line for a long time, causes the incrustation scale deposit and influences life's problem.
Example three: see 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 second TDS probe 19b can be located behind the first reverse osmosis filter element 11a, before or after the post filter element 17b, the first high pressure switch 16a or the second one-way valve 15 b.
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 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 flows back to the front of the pump through the first flow limiting valve 14a to be mixed with the tap water and then enters the first reverse osmosis filter element 11a for secondary filtration, so that zero discharge of the waste water is realized.
The user turns on the life faucet: the second high-pressure switch 16b detects the pressure change, and opens the first flow-limiting valve 14 a; at the moment, 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 waste water port in two ways, one way flows back to the front of the pump through the first flow limiting valve 14a and is mixed with the tap water to pass through the first reverse osmosis filter element 11a again, and the first flow limiting valve 14a is in a fully open state and has a large flow, so that a waste water return water path 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 life faucet for use, and part of the original waste water remained in the system is discharged through the life faucet. Namely, when a user opens the living water faucet, the flushing program of the system is started, 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 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 backflow waterway 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 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.
Wastewater straight-line procedure 1: 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 the water TDS, consequently, when first TDS probe 19a and second TDS probe 19b detected that the system desalination is less than the setting value (preferred 70-95%), start the straight line procedure of waste water (preferred 5-300s of time), booster pump 12 keeps starting, keeps normal system water state promptly, first ooff valve 18a opens, the waste water that first reverse osmosis filter core 11a produced is discharged along with the straight calandria of waste water, can resume initial level in the play water TDS short time, and weak to drinking water flow influence.
Wastewater straight-line procedure 2: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a wastewater direct discharge program (preferably 5-300 s); the booster pump 12 is not started, the first flow limiting valve 14a and the first switch valve 18a are opened, tap water flows out from the wastewater end after entering the first reverse osmosis filter element 11a depending on the pressure of tap water and is directly discharged into the wastewater straight discharge pipeline, so that the replacement of water in the first reverse osmosis filter element 11a and the wastewater pipeline is completed, the first reverse osmosis filter element 11a and the first flow limiting valve 14a are prevented from scaling, and the service lives of the first reverse osmosis filter element 11a and the first flow limiting valve 14a are prolonged. Under the normal condition, the user opens life tap and can accomplish the 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 has got the drinking water, makes backward flow waste water be detained in first reverse osmosis filter core 11a and return line for a long time, causes the incrustation scale deposit and influences life's problem.
Example four: see fig. 4. In this 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 the pure water outlet pipeline of the first reverse osmosis filter element 11a 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 preposed effluent flow is less than 8L/min; the kind of the post-filter 17b may be activated carbon of different forms. The first TDS probe 19a is arranged in front of the wastewater return line, in front of the pre-filter element 17a or behind the pre-filter element 17 a; the second TDS probe 19b can be behind the reverse osmosis filter element, either before or after the post filter element 17b, the first high pressure switch 16a, or the second one-way valve 15 b.
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 pump through the first flow limiting valve 14a and is mixed with the front effluent 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 faucet: the second high-pressure switch 16b detects the pressure change, and opens the first flow-limiting valve 14 a; at the moment, 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 waste water port in two ways, one way flows back to the front of the pump through the first flow limiting valve 14a and is mixed with the tap water to pass through the first reverse osmosis filter element 11a again, and the first flow limiting valve 14a is in a fully open state and has a large flow, so that a waste water return water path 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 life faucet for use, and part of the original waste water remained in the system is discharged through the life faucet. Namely, when a user opens the living water 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 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 backflow waterway 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 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.
Wastewater straight-line procedure 1: 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 the water TDS, consequently, when first TDS probe 19a and second TDS probe 19b detected that the system desalination is less than the setting value (preferred 70-95%), start the straight line procedure of waste water (preferred 5-300s of time), booster pump 12 keeps starting, keeps normal system water state promptly, first ooff valve 18a opens, the waste water that first reverse osmosis filter core 11a produced is discharged along with the straight calandria of waste water, can resume initial level in the play water TDS short time, and weak to drinking water flow influence.
Wastewater straight-line procedure 2: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a waste water direct discharge program (preferably 5-300 s); the booster pump 12 is not started, the first flow limiting valve 14a and the first switch valve 18a are opened, tap water flows out from the wastewater end after entering the first reverse osmosis filter element 11a depending on the pressure of tap water and is directly discharged into the wastewater straight discharge pipeline, so that the replacement of water in the first reverse osmosis filter element 11a and the wastewater pipeline is completed, the first reverse osmosis filter element 11a and the first flow limiting valve 14a are prevented from scaling, and the service lives of the first reverse osmosis filter element 11a and the first flow limiting valve 14a are prolonged. Under the normal condition, the user opens life tap and can accomplish the 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 has got the drinking water, makes backward flow waste water be detained in first reverse osmosis filter core 11a and return line for a long time, causes the incrustation scale deposit and influences life's problem.
Example five: see fig. 5. In this embodiment, a second reverse osmosis filter element 11b is added on the basis of the first embodiment, the first waste water inlet 113 of the first reverse osmosis filter element 11a is connected with the second water inlet 114 of the second reverse osmosis filter element 11b, 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 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 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 flows into the first pure water pipeline S1, 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 into the second pure water pipeline S2 and is converged with the first pure water pipeline S1, the pure water is discharged through the drinking water faucet for drinking, the wastewater flows back to the front of the pump through the first flow limiting valve 14a and is mixed with the tap water 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 water faucet: the second high-pressure switch 16b detects the pressure change, and opens the first flow-limiting valve 14 a; at the moment, the two reverse osmosis filter elements do not generate pure water, tap water enters the first reverse osmosis filter element 11a through the booster pump 12 and then flows out of the waste water end of the first reverse osmosis filter element 11a, enters the second reverse osmosis filter element 11b and then flows out of the waste water end of the second reverse osmosis filter element 11b in two ways, one way of tap water flows back to the front of the pump through the first flow limiting valve 14a and is mixed with the tap water to enter the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b again, and the first flow limiting valve 14a is in a fully open state and has a large flow, so that a waste water backflow water channel 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 lives of the two reverse osmosis filter elements are prolonged; the other path is directly discharged through a domestic faucet for domestic use, and part of the residual original wastewater in the system is discharged through the domestic faucet. 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; 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 backflow waterway 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 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.
Wastewater straight-line procedure 1: when a user takes drinking water, because of the backflow of waste water, the TDS of the outlet water can be increased along with the increase of water taking time, therefore, when the first TDS probe 19a and the second TDS probe 19b detect that the system desalination rate is lower than a set value (preferably 70-95%), the 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, the waste water generated by the two reverse osmosis filter elements is discharged along with a waste water direct discharging pipeline, the initial level of the outlet water TDS can be recovered within a short time, and the influence on the flow of the drinking water is weak.
Wastewater straight-line procedure 2: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a waste water direct discharge program (preferably 5-300 s); the booster pump 12 is not started, the first flow limiting valve 14a and the first switch valve 18a are opened, tap water flows out from the waste water end after sequentially entering the two reverse osmosis filter elements by depending on the pressure of the tap water and is directly discharged into the waste water straight discharge pipeline, the replacement of water in the two reverse osmosis filter elements and the waste water pipeline is completed, the scaling of the two reverse osmosis filter elements and the first flow limiting valve 14a is prevented, 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 and can accomplish the washing to two reverse osmosis filter cores and 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 backward flow waste water be detained in two reverse osmosis filter cores and return line for a long time, causes the incrustation scale deposit and influences life's problem.
Example six: see fig. 6. 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 can be PP, activated carbon, ultrafiltration, nanofiltration, or composite filter of the above materials, and the front water flow is less than 8L/min. The first TDS probe 19a is either before the wastewater return line, before the pre-filter 17a or after the pre-filter 17 a.
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, pure water and waste water are divided into one path, the pure water flows into the first pure water pipeline S1, the waste water flows into the second reverse osmosis filter element 11b and is secondarily filtered, the pure water flows into the second pure water pipeline S2 and is converged with the first pure water pipeline S1, the pure water is discharged through the drinking water faucet for drinking, the waste water flows back to the front of the pump through the first flow limiting valve 14a and is mixed with the front outlet water to enter the first reverse osmosis filter element 11a again for filtering, and zero discharge of the waste water is achieved.
The user turns on the life faucet: the second high-pressure switch 16b detects the pressure change, and opens the first flow-limiting valve 14 a; at the moment, the two reverse osmosis filter elements do not generate pure water, tap water enters the first reverse osmosis filter element 11a through the booster pump 12 and then flows out of the waste water end of the first reverse osmosis filter element 11a, enters the second reverse osmosis filter element 11b and then flows out of the waste water end of the second reverse osmosis filter element 11b in two ways, one way of tap water flows back to the front of the pump through the first flow limiting valve 14a and is mixed with the tap water to enter the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b again, and the first flow limiting valve 14a is in a fully open state and has a large flow, so that a waste water backflow water channel 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 lives of the two reverse osmosis filter elements are prolonged; the other path is directly discharged through a domestic faucet for domestic use, and part of the residual original wastewater in the system is discharged through the domestic faucet. 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 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 backflow waterway 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.
Wastewater straight-line procedure 1: 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 the water TDS, consequently, when first TDS probe 19a and second TDS probe 19b detected that the system desalination is less than the setting value (preferred 70-95%), 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 opens, the waste water that two reverse osmosis filter core produced is discharged along with the straight calandria of waste water, can resume initial level in the play water TDS short time, and weak to drinking water flow.
Wastewater straight-line procedure 2: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a waste water direct discharge program (preferably 5-300 s); the booster pump 12 is not started, the first flow limiting valve 14a and the first switch valve 18a are opened, tap water flows out from the waste water end after sequentially entering the two reverse osmosis filter elements by depending on the pressure of the tap water and is directly discharged into the waste water straight discharge pipeline, the replacement of water in the two reverse osmosis filter elements and the waste water pipeline is completed, the scaling of the two reverse osmosis filter elements and the first flow limiting valve 14a is prevented, 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 and can accomplish the washing to two reverse osmosis filter cores and 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 backward flow waste water be detained in two reverse osmosis filter cores and return line for a long time, causes the incrustation scale deposit and influences life's problem.
Example seven: see 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 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 second TDS probe 19b can be located behind the first reverse osmosis filter element 11a, before or after the post filter element 17b, the first high pressure switch 16a or the second one-way valve 15 b.
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 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 into the first pure water pipeline S1, 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 into the second pure water pipeline S2 and is converged with the first pure water pipeline S1, 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 pump through the first flow limiting valve 14a and is mixed with the tap water 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 faucet: the second high-pressure switch 16b detects the pressure change, and opens the first flow-limiting valve 14 a; at the moment, the two reverse osmosis filter elements do not generate pure water, tap water enters the first reverse osmosis filter element 11a through the booster pump 12 and then flows out of the waste water end of the first reverse osmosis filter element 11a, enters the second reverse osmosis filter element 11b and then flows out of the waste water end of the second reverse osmosis filter element 11b in two ways, one way of tap water flows back to the front of the pump through the first flow limiting valve 14a and is mixed with the tap water to enter the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b again, and the first flow limiting valve 14a is in a fully open state and has a large flow, so that a waste water backflow water channel 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 lives of the two reverse osmosis filter elements are prolonged; the other path is directly discharged through a domestic faucet for domestic use, and part of the residual original wastewater in the system is discharged through the domestic faucet. 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 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 backflow waterway 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.
Wastewater straight-line procedure 1: 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 the water TDS, consequently, when first TDS probe 19a and second TDS probe 19b detected that the system desalination is less than the setting value (preferred 70-95%), 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 opens, the waste water that two reverse osmosis filter core produced is discharged along with the straight calandria of waste water, can resume initial level in the play water TDS short time, and weak to drinking water flow.
Wastewater straight-line procedure 2: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a waste water direct discharge program (preferably 5-300 s); when the booster pump 12 is not started, the first flow limiting valve 14a and the first switch valve 18a are opened, tap water flows out from the waste water end after sequentially entering the two reverse osmosis filter elements depending on the pressure of the tap water and is directly discharged into the waste water straight discharge pipeline, so that the replacement of water in the two reverse osmosis filter elements and the waste water pipeline is completed, 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 and can accomplish the washing to two reverse osmosis filter cores and 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 backward flow waste water be detained in two reverse osmosis filter cores and return line for a long time, causes the incrustation scale deposit and influences life's problem.
Example eight: see 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 preposed effluent flow is less than 8L/min; the kind of the post-filter 17b may be activated carbon of different forms. The first TDS probe 19a is arranged in front of the wastewater return line and the front filter element 17a or behind the front filter element 17 a; the second TDS probe 19b can be located behind the first reverse osmosis filter element 11a, before or after the post filter element 17b, the first high pressure switch 16a or the second one-way valve 15 b.
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, pure water and waste water are divided into one path, the pure water flows into the first pure water pipeline S1, the waste water flows into the second reverse osmosis filter element 11b and is secondarily filtered, the pure water flows into the second pure water pipeline S2 and is converged with the first pure water pipeline S1, the pure water is discharged by a drinking water faucet after passing through the rear filter element 17b for drinking, the waste water flows back to the pump through the first flow limiting valve 14a and is mixed with the front outlet water 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 faucet: the second high-pressure switch 16b detects the pressure change, and opens the first flow-limiting valve 14 a; at the moment, the two reverse osmosis filter elements do not generate pure water, tap water enters the first reverse osmosis filter element 11a through the booster pump 12 and then flows out of the waste water end of the first reverse osmosis filter element 11a, enters the second reverse osmosis filter element 11b and then flows out of the waste water end of the second reverse osmosis filter element 11b in two ways, one way of tap water flows back to the front of the pump through the first flow limiting valve 14a and is mixed with the tap water to enter the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b again, and the first flow limiting valve 14a is in a fully open state and has a large flow, so that a waste water backflow water channel 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 lives of the two reverse osmosis filter elements are prolonged; the other path is directly discharged through a life faucet for life use, and part of the original waste water remained in the system is discharged through the life faucet. 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 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 backflow waterway 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.
Wastewater straight-line procedure 1: 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 the water TDS, consequently, when first TDS probe 19a and second TDS probe 19b detected that the system desalination is less than the setting value (preferred 70-95%), 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 opens, the waste water that two reverse osmosis filter core produced is discharged along with the straight calandria of waste water, can resume initial level in the play water TDS short time, and weak to drinking water flow.
Wastewater straight-line procedure 2: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a waste water direct discharge program (preferably 5-300 s); the booster pump 12 is not started, the first flow limiting valve 14a and the first switch valve 18a are opened, tap water flows out from the waste water end after sequentially entering the two reverse osmosis filter elements by depending on the pressure of the tap water and is directly discharged into the waste water straight discharge pipeline, the replacement of water in the two reverse osmosis filter elements and the waste water pipeline is completed, the scaling of the two reverse osmosis filter elements and the first flow limiting valve 14a is prevented, 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 and can accomplish the washing to two reverse osmosis filter cores and 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 backward flow waste water be detained in two reverse osmosis filter cores and return line for a long time, causes the incrustation scale deposit and influences life's problem.
Example nine: see 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 has 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, the second waste water outlet 116 passes through a second branch P2In communication with the pump inlet 121, a second branch P2A second flow restriction valve 14b and a third check valve 15c are arranged, the flow direction of the third check valve 15c flows from the second waste water port 116 to the pump inlet 121, and the second flow restriction valve14b has a flow restriction function, and the second water outlet 115 is communicated with the drinking water inlet 131.
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; running water respectively enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, and after filtration, pure water pipelines of the two reverse osmosis filter elements are converged and discharged through 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 water faucet: the second high-pressure switch 16b detects the pressure change, and opens the first flow limiting valve 14a and the second flow limiting valve 14b, and at the moment, the two reverse osmosis filter elements do not produce pure water; tap 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 (the pump is not started), then respectively flows out of the two reverse osmosis filter element waste water ends in two ways, one way of the tap water flows back to the front of the pump through the first flow limiting valve 14a and the second flow limiting valve 14b and then is mixed with the tap water to enter the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b again, and the first flow limiting valve 14a and the second flow limiting valve 14b are in a fully open state and have larger flow, so that a waste water return water path and the first flow limiting valve 14a and the second flow limiting valve 14b can be flushed, the risk of blockage of the first flow limiting valve 14a and the second flow limiting valve 14b due to scaling is reduced, and the service lives of the two reverse osmosis filter elements are 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 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 backflow waterway, the first flow limiting valve 14a and the second flow limiting valve 14b, the risk that the two flow limiting valves are 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.
Wastewater straight-line procedure 1: when a user takes drinking water, because of backflow of waste water, the TDS of the outlet water can be increased along with the increase of water taking time, therefore, when the first TDS probe 19a and the second TDS probe 19b detect that the system desalination rate is lower than a set value (preferably 70-95%), the waste water direct discharge 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 second switch valve 18b are opened, waste water generated by the two reverse osmosis filter elements is discharged along with a waste water direct discharge pipeline, the initial level of the outlet water TDS can be recovered in a short time, and the influence on the drinking water flux is small.
Wastewater straight-line procedure 2: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a wastewater direct discharge program (preferably 5-300 s); the booster pump 12 is not started, the first flow limiting valve 14a, the second flow limiting valve 14b, the first switch valve 18a and the second switch valve 18b are opened, tap water flows out of the wastewater end after entering the two reverse osmosis filter elements by means of tap water pressure and is directly discharged into the wastewater straight discharge pipeline, the replacement of water in the two reverse osmosis filter elements and the wastewater pipeline is completed, the two reverse osmosis filter elements, 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 elements and the two flow limiting valves are prolonged. Under the normal condition, the user opens life tap and can accomplish the washing to two reverse osmosis filter cores and 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 backward flow waste water be detained in two reverse osmosis filter cores and return line for a long time, causes the incrustation scale deposit and influences life's problem.
Example ten: see 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 preposed effluent flow is less than 8L/min. The first TDS probe 19a is either before the wastewater return line, before the pre-filter 17a or after the pre-filter 17 a.
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; the tap water is coarsely filtered by the preposed filter element 17a and then respectively enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, and the filtered tap water is converged by two reverse osmosis filter element pure water pipelines and discharged through 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 the front effluent, 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 faucet: the second high-pressure switch 16b detects the pressure change, and opens the first flow limiting valve 14a and the second flow limiting valve 14b, and at the moment, the two reverse osmosis filter elements do not produce pure water; tap 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 (the pump is not started), then respectively flows out of the two reverse osmosis filter element waste water ends in two ways, one way of the tap water flows back to the front of the pump through the first flow limiting valve 14a and the second flow limiting valve 14b and then is mixed with the tap water to enter the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b again, and the first flow limiting valve 14a and the second flow limiting valve 14b are in a fully open state and have larger flow, so that a waste water return water path and the first flow limiting valve 14a and the second flow limiting valve 14b can be flushed, the risk of blockage of the first flow limiting valve 14a and the second flow limiting valve 14b due to scaling is reduced, and the service lives of the two reverse osmosis filter elements are 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 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 backflow waterway, the first flow limiting valve 14a and the second flow limiting valve 14b, the risk that the two flow limiting valves are blocked due to scaling is reduced, and the service lives of the two reverse osmosis filter elements are 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.
Wastewater straight-line procedure 1: when the user got the drinking water, because the waste water backward flow, the play water TDS can increase along with the increase of water intaking time, consequently, when first TDS probe 19a and second TDS probe 19b detected that the system desalination is less than the setting value (preferred 70-95%), 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 second ooff valve 18b open, the waste water that two reverse osmosis filter core produced is discharged along with the straight row pipeline of waste water, the initial level can be resumeed to play water TDS short time, and it is less to drinking water flux influence.
Wastewater straight-line procedure 2: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a waste water direct discharge program (preferably 5-300 s); the booster pump 12 is not started, the first flow limiting valve 14a, the second flow limiting valve 14b, the first switch valve 18a and the second switch valve 18b are opened, tap water flows out of the wastewater end after entering the two reverse osmosis filter elements by means of tap water pressure and is directly discharged into the wastewater straight discharge pipeline, the replacement of water in the two reverse osmosis filter elements and the wastewater pipeline is completed, the two reverse osmosis filter elements, 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 elements and the two flow limiting valves are prolonged. Under the normal condition, the user opens life tap and can accomplish the washing to two reverse osmosis filter cores and 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 backward flow waste water be detained in two reverse osmosis filter cores and return line for a long time, causes the incrustation scale deposit and influences life's problem.
Example eleven: see fig. 11. In this embodiment, on the basis of the ninth embodiment, a post-filter element 17b is added to 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 the second check valve 15b and the first high-pressure switch 16 a; the kind of the post-filter 17b may be activated carbon of different forms. The second TDS probe 19b can be located behind the first reverse osmosis filter element 11a, before or after the post filter element 17b, the first high pressure switch 16a or the second one-way valve 15 b.
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; running water respectively enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, pure water pipelines of the two reverse osmosis filter elements are converged after filtration, and the pure water is discharged by a drinking water tap for drinking after passing through the post-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 faucet: the second high-pressure switch 16b detects the pressure change, and opens the first flow limiting valve 14a and the second flow limiting valve 14b, and at the moment, the two reverse osmosis filter elements do not produce pure water; tap 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 (the pump is not started), then respectively flows out of the two reverse osmosis filter element waste water ends in two ways, one way of the tap water flows back to the front of the pump through the first flow limiting valve 14a and the second flow limiting valve 14b and then is mixed with the tap water to enter the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b again, and the first flow limiting valve 14a and the second flow limiting valve 14b are in a fully open state and have larger flow, so that a waste water return water path and the first flow limiting valve 14a and the second flow limiting valve 14b can be flushed, the risk of blockage of the first flow limiting valve 14a and the second flow limiting valve 14b due to scaling is reduced, and the service lives of the two reverse osmosis filter elements are 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 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 backflow waterway, the first flow limiting valve 14a and the second flow limiting valve 14b, the risk that the two flow limiting valves are 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.
Wastewater straight-line procedure 1: when the user got the drinking water, because the waste water backward flow, the play water TDS can increase along with the increase of water intaking time, consequently, when first TDS probe 19a and second TDS probe 19b detected that the system desalination is less than the setting value (preferred 70-95%), 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 second ooff valve 18b open, the waste water that two reverse osmosis filter core produced is discharged along with the straight row pipeline of waste water, the initial level can be resumeed to play water TDS short time, and it is less to drinking water flux influence.
Wastewater straight-line procedure 2: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a waste water direct discharge program (preferably 5-300 s); the booster pump 12 is not started, the first flow limiting valve 14a, the second flow limiting valve 14b, the first switch valve 18a and the second switch valve 18b are opened, tap water flows out of the wastewater end after entering the two reverse osmosis filter elements by means of tap water pressure and is directly discharged into the wastewater straight discharge pipeline, the replacement of water in the two reverse osmosis filter elements and the wastewater pipeline is completed, the two reverse osmosis filter elements, 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 elements and the two flow limiting valves are prolonged. Under the normal condition, the user opens life tap and can accomplish the washing to two reverse osmosis filter cores and 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 backward flow waste water be detained in two reverse osmosis filter cores and return line for a long time, causes the incrustation scale deposit and influences life's problem.
Example twelve: see 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 a pure water outlet merging pipeline of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, 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 preposed effluent flow is less than 8L/min; the kind of the post-filter 17b may be activated carbon of different forms. The first TDS probe 19a is arranged in front of the wastewater return line, in front of the pre-filter element 17a or behind the pre-filter element 17 a; the second TDS probe 19b can be located behind the first reverse osmosis filter element 11a, before or after the post filter element 17b, the first high pressure switch 16a or the second one-way valve 15 b.
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; the tap water is coarsely filtered by the preposed filter element 17a and then respectively enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, and the pure water pipelines of the two filter elements are converged after the filtration, and then are 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 front effluent, 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 faucet: the second high-pressure switch 16b detects the pressure change, and opens the first flow limiting valve 14a and the second flow limiting valve 14b, and at the moment, the two reverse osmosis filter elements do not produce pure water; tap 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 (the pump is not started), then respectively flows out of the two reverse osmosis filter element waste water ends in two ways, one way of the tap water flows back to the front of the pump through the first flow limiting valve 14a and the second flow limiting valve 14b and then is mixed with the tap water to enter the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b again, and the first flow limiting valve 14a and the second flow limiting valve 14b are in a fully open state and have larger flow, so that a waste water return water path and the first flow limiting valve 14a and the second flow limiting valve 14b can be flushed, the risk of blockage of the first flow limiting valve 14a and the second flow limiting valve 14b due to scaling is reduced, and the service lives of the two reverse osmosis filter elements are 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 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 backflow waterway, 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 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.
Wastewater straight-line procedure 1: when a user takes drinking water, because of backflow of waste water, the TDS of the outlet water can be increased along with the increase of water taking time, therefore, when the first TDS probe 19a and the second TDS probe 19b detect that the system desalination rate is lower than a set value (preferably 70-95%), the waste water direct discharge 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 second switch valve 18b are opened, waste water generated by the two reverse osmosis filter elements is discharged along with a waste water direct discharge pipeline, the initial level of the outlet water TDS can be recovered in a short time, and the influence on the drinking water flux is small.
Wastewater straight-line procedure 2: when the user is monitored not to use the water purifier for a long time (preferably 10min-10h), starting a waste water direct discharge program (preferably 5-300 s); when the booster pump 12 is not started, the first flow limiting valve 14a, the second flow limiting valve 14b, the first switch valve 18a and the second switch valve 18b are opened, tap water flows out of the waste water end after entering the two reverse osmosis filter elements by means of the pressure of tap water, and is directly discharged into the waste water straight discharge pipeline, so that the replacement of water in the two reverse osmosis filter elements and the waste water pipeline is completed, the two reverse osmosis filter elements, 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 elements and the two flow limiting valves are prolonged. Under the normal condition, the user opens life tap and can accomplish the washing to two reverse osmosis filter cores and 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 backward flow waste water be detained in two reverse osmosis filter cores and return line for a long time, causes the incrustation scale deposit and influences life's problem.
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 (10)
1. The utility model provides a waterway system with two TDS probes, includes consecutive booster pump, first reverse osmosis filter core, first high pressure valve subassembly and goes out the water subassembly, it has outlet port, drinking water inlet and domestic water inlet to go out the water subassembly, the drinking water inlet with first high pressure valve subassembly intercommunication, the domestic water inlet communicates with the waste water mouth of first reverse osmosis filter core, its characterized in that still includes:
a first wastewater direct discharge pipeline, one end of which is communicated with a pipeline between the wastewater inlet of the first reverse osmosis filter element and the domestic water inlet, wherein a first flow limiting valve and a first switch valve are sequentially arranged on the first wastewater direct discharge pipeline along the upstream to downstream direction, and the first flow limiting valve has a flow limiting state and a full-open state; a pipeline between the first flow limiting valve and the first switch valve is communicated with a water inlet of the booster pump through a first branch pipeline, and a first one-way valve which flows towards the water inlet of the booster pump is arranged on the first branch pipeline; a second high-pressure valve component is arranged on a pipeline between the waste water inlet of the first reverse osmosis filter element and the domestic water inlet;
the first TDS probe and the second TDS probe are respectively and correspondingly arranged at the upstream of the booster pump and between the first reverse osmosis filter element and the first high-pressure valve assembly;
and the electric control unit is connected with the booster pump, the first high-pressure valve assembly, the second high-pressure valve assembly, the first flow limiting valve, the first switch valve, the first TDS probe and the second TDS probe.
2. The waterway system of claim 1, the first high pressure valve comprising a first high pressure switch and a second one-way valve, the second one-way valve being located upstream of the first high pressure switch; the second high pressure valve assembly includes a second high pressure switch and a third one-way valve located upstream of the second high pressure switch.
3. The waterway system of claim 2, wherein the waterway system of the dual TDS probe further comprises a second reverse osmosis filter element disposed in the flow path between the waste water port of the first reverse osmosis filter element and the first flow restriction valve, the water inlet of the second reverse osmosis filter element being in communication with the waste water port of the first reverse osmosis filter element, the waste water port of the second reverse osmosis filter element being in communication with the water inlet of the first flow restriction valve, the water outlet of the second reverse osmosis filter element being in communication with the flow path between the water outlet of the first reverse osmosis filter element and the second TDS probe.
4. The waterway system with the double TDS probes as recited in claim 2, further comprising a second reverse osmosis filter element, wherein a water inlet of the second reverse osmosis filter element is connected to a water outlet of the booster pump, a waste water outlet of the second reverse osmosis filter element is connected to one end of a second waste water straight discharge pipeline, and a second flow limiting valve and a second switch valve are disposed on the second waste water straight discharge pipeline; the second switch valve is positioned at the downstream of the second flow limiting valve, a flow path between the second switch valve and the second flow limiting valve is communicated with the pump inlet through a second branch, and a fourth one-way valve flowing towards a water inlet of the booster pump is arranged on the second branch;
and the electric control unit is electrically connected with the second flow limiting valve and the second switch valve.
5. The waterway system of any one of claims 1-4, wherein the waterway system further comprises a pre-filter disposed between the booster pump and the first TDS probe.
6. The waterway system with dual TDS probes of claim 5, wherein a feed valve is disposed upstream of the pre-filter or between the pre-filter and the junction of the first branch and the flow path where the pump inlet is located.
7. The waterway system of claim 5, the waterway system with dual TDS probes further comprising a post-filter element disposed between the first reverse osmosis filter element and the first high pressure valve assembly.
8. The waterway system of claim 7, wherein the outlet flow rate of the pre-filter element is less than 8L/min; the preposed filter core is a PP filter core, an activated carbon filter core, an ultrafiltration filter core or a nanofiltration filter core; the post-positioned filter element is an activated carbon filter element.
9. The waterway system of any one of claims 2-4, wherein the waterway system further comprises a post-filter disposed in the flow path between the first reverse osmosis filter and the second one-way valve.
10. The waterway system of any one of claims 1-4, wherein the waterway system of the dual TDS probe has a preset salt rejection rate of 70% to 95%.
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| CN202123431291.4U CN216808229U (en) | 2021-12-29 | 2021-12-29 | Waterway system with double TDS probes |
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| CN202123431291.4U CN216808229U (en) | 2021-12-29 | 2021-12-29 | Waterway system with double TDS probes |
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