CN217323462U - Waterway system with double TDS probes - Google Patents

Waterway system with double TDS probes Download PDF

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Publication number
CN217323462U
CN217323462U CN202123430820.9U CN202123430820U CN217323462U CN 217323462 U CN217323462 U CN 217323462U CN 202123430820 U CN202123430820 U CN 202123430820U CN 217323462 U CN217323462 U CN 217323462U
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China
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water
reverse osmosis
osmosis filter
filter element
waste water
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宾倩韵
孙天厚
谈菲
刘梦薇
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Foshan Midea Qinghu Water Purification Equipment Co ltd
Midea Group Co Ltd
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Foshan Midea Qinghu Water Purification Equipment Co ltd
Midea Group Co Ltd
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Priority to CN202123430820.9U priority Critical patent/CN217323462U/en
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/131—Reverse-osmosis

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Abstract

The utility model discloses a waterway system with double TDS probes, which comprises a first TDS probe, a booster pump, a first reverse osmosis filter element, a second TDS probe, a high-voltage switch and a water outlet component which are connected in sequence, wherein the water outlet component is provided with a water outlet, a drinking water inlet and a domestic water inlet, the water outlet is communicated with the water inlet of the booster pump through a first waste water direct discharge pipeline, and the first waste water direct discharge pipeline is provided with a first flow limiting valve and a first switch valve; the waterway system also comprises an electric control unit, wherein the electric control unit is used for starting the booster pump and closing the first switch valve when sensing a signal that the high-voltage switch is triggered; and when the salt rejection rate that acquires first TDS probe and second TDS probe and detect is less than preset salt rejection rate, open first ooff valve. The utility model discloses technical scheme can directly discharge waste water when detecting that pure water goes out the water desalination rate and fails.

Description

Waterway system with double TDS probes
Technical Field
The utility model relates to a water purifier technical field, in particular to waterway system with two 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 waterway system is actually a liquid concentration process, and the salt content in water is continuously increased along with the increase of 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 application mainly aims to provide a waterway system with a double-TDS probe, and aims to solve the problem that the waste water generated by the existing water purifier is too much and is not beneficial to resource utilization.
In order to achieve the above object, the utility model provides a waterway system with two TDS probes, including booster pump, first reverse osmosis filter core, high tension switchgear and the play water subassembly that links to each other in order, it has outlet, drinking water inlet and life water inlet to go out the water subassembly, the drinking water inlet with the high tension switchgear intercommunication, the waste water inlet of life water inlet and first reverse osmosis filter core communicates, waterway system with two TDS probes still includes:
one end of the first wastewater direct discharge pipeline is communicated with a wastewater port of the first reverse osmosis filter element, a first flow limiting valve and a first switch valve are sequentially arranged on the first wastewater direct discharge pipeline along the upstream and downstream directions, 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;
first TDS probe and second TDS probe, respectively correspond set up in the upstream of booster pump with first reverse osmosis filter core with between the drinking water inlet.
The electric control unit is connected with the booster pump, the high-voltage switch, the first flow limiting valve, the first switch valve, the first TDS probe and the second TDS probe;
the electronic control unit is used for starting the booster pump and closing the first switch valve when sensing that the high-voltage switch is triggered; and when the salt rejection rate detected by the first TDS probe and the second TDS probe is lower than a preset value, the first switch valve is opened.
In an embodiment, the electronic control unit is further configured to control the first switch valve to open when the TDS value detected by the second TDS probe is greater than a preset value and the triggered signal of the high-voltage switch is terminated.
In one embodiment, the first switch valve is opened when the high voltage switch is not triggered for more than a preset time.
In one embodiment, the high pressure switch further comprises a second one-way valve disposed upstream of the high pressure switch and between the second TDS probe and the high pressure switch.
In an embodiment, the water outlet assembly includes a drinking water outlet assembly and a domestic water outlet assembly which are independent of each other, the drinking water outlet assembly has the drinking water inlet, the domestic water outlet assembly has the domestic water inlet, and the water outlet includes a drinking water outlet arranged on the drinking water assembly and a domestic water outlet arranged on the domestic water assembly.
In an embodiment, the waterway system further includes a second reverse osmosis filter element, the second reverse osmosis filter element is disposed on a flow path between the waste water outlet of the first reverse osmosis filter element and the first flow limiting valve, the water inlet of the second reverse osmosis filter element is communicated with the waste water outlet of the first reverse osmosis filter element, the waste water outlet of the second reverse osmosis filter element is communicated with the water inlet end of the first flow limiting valve, and the water outlet of the second reverse osmosis filter element is communicated with a flow path between the water outlet of the first reverse osmosis filter element and the second TDS probe.
In an embodiment, the water outlet assembly includes a drinking water outlet assembly and a domestic water outlet assembly which are independent of each other, the drinking water outlet assembly has the drinking water inlet, the domestic water outlet assembly has the domestic water inlet, and the water outlet includes a drinking water outlet arranged on the drinking water assembly and a domestic water outlet arranged on the domestic water assembly.
In one embodiment, the system further comprises a second reverse osmosis filter element, a water inlet of the second reverse osmosis filter element is communicated with an outlet of the booster pump, a waste water outlet of the second reverse osmosis filter element is communicated with one end of a second waste water direct discharge pipeline, a second flow limiting valve and a second switch valve are arranged on the second waste water direct discharge pipeline, and the second flow limiting valve has a flow limiting state and a full-open state; 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 third one-way valve flowing towards the water inlet of the booster pump is arranged on the second branch path;
the electronic control unit is used for closing the second switch valve when the high-voltage switch is sensed to be triggered; and when the salt rejection detected by the first TDS probe and the second TDS probe is lower than a preset value, the second switch valve is opened.
In an embodiment, the electronic control unit is further configured to control the second switch valve to open when the TDS value detected by the second TDS probe is greater than a preset value and the triggered signal of the high-voltage switch is terminated.
In one embodiment, the second switch valve is opened when the time during which the high-voltage switch is not activated exceeds a preset time.
In an embodiment, the water outlet assembly includes a drinking water outlet assembly and a domestic water outlet assembly which are independent of each other, the drinking water outlet assembly has the drinking water inlet, the domestic water outlet assembly has the domestic water inlet, and the water outlet includes a drinking water outlet arranged on the drinking water assembly and a domestic water outlet arranged on the domestic water assembly.
In an embodiment, the waterway system further comprises a pre-filter element disposed upstream of the booster pump, and the water outlet end of the first check valve is communicated with the pump outlet.
In one embodiment, a water inlet valve is arranged between the upstream of the pre-filter element or the intersection of the flow path where the pump inlet is positioned and the first branch path and the pre-filter element.
In an embodiment, the waterway system further comprises a post-filter element disposed on the flow path between the first reverse osmosis filter element and the second one-way valve.
In one embodiment, the pre-filter element is a PP filter element, an activated carbon filter element, an ultrafiltration filter element or a nanofiltration filter element; the post-positioned filter element is an activated carbon filter element.
In one embodiment, the waterway system further comprises a post-filter element disposed on the flow path between the first reverse osmosis filter element and the second one-way valve.
To the many problems of present water purifier waste water, the application provides a high water-saving intelligent system of reverse osmosis of collocation mechanical faucet, with waste water through the pipeline backward flow to first reverse osmosis filter core before, with the mixed back reentrant first reverse osmosis filter core of running water carry out the secondary filter. The method can greatly reduce the discharge of waste water while ensuring the performance and the service life of the first reverse osmosis filter element; meanwhile, the waste water is connected with the original tap water faucet in the kitchen of the domestic tap user, when the tap water faucet is opened, the waste water discharge is completed, and the waste water is recycled, so that the requirements of ecological environment protection are met. In addition, a TDS probe and a wastewater direct discharge pipeline are added for directly discharging wastewater when the pure water effluent desalination rate is not qualified.
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 embodiments or the prior art descriptions 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 sixth embodiment of a waterway system of the present application with a dual TDS probe;
FIG. 7 is a schematic flow diagram of a seventh embodiment of a waterway system of the present application with a dual TDS probe;
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 according to the present application with a dual TDS probe;
FIG. 13 is a schematic flow diagram of a thirteenth embodiment of a waterway system according to the present application with dual TDS probes;
FIG. 14 is a schematic flow diagram of a fourteenth embodiment of a waterway system according to the present application with a dual TDS probe;
FIG. 15 is a schematic flow diagram illustrating a fifteenth embodiment of a waterway system of the present application with a dual TDS probe;
FIG. 16 is a schematic flow diagram of a sixteenth embodiment of a waterway system according to the present application having a dual TDS probe;
FIG. 17 is a schematic flow diagram illustrating a seventeenth embodiment of a waterway system of the present application having a dual TDS probe;
FIG. 18 is a schematic flow diagram of an eighteenth embodiment of a waterway system with a dual TDS probe according to the present application;
FIG. 19 is a schematic flow diagram of a nineteenth embodiment of a waterway system according to the present application with dual TDS probes;
FIG. 20 is a schematic flow diagram of a twentieth embodiment of a waterway system of the present application having a dual TDS probe;
FIG. 21 is a schematic flow diagram of a twenty-first embodiment of a waterway system with dual TDS probes according to the present application;
FIG. 22 is a schematic flow diagram of a twenty-second embodiment of a waterway system according to the present application with dual TDS probes;
FIG. 23 is a schematic flow diagram of a twenty-third embodiment of a waterway system of the present application with dual TDS probes;
FIG. 24 is a schematic flow diagram of a twenty-fourth embodiment of a waterway system according to the present application with dual TDS probes.
The reference numbers illustrate:
reference numerals Name (R) Reference numerals Name(s)
11a First reverse osmosis filter element 111 First water inlet
112 The first water outlet 113 First waste water port
11b Second reverse osmosis filter element 114 Second water inlet
115 Second water outlet 116 Second waste water port
12 Booster pump 121 Pump inlet
122 Pump outlet P 1 First branch
P 2 Second branch Q 1 First wastewater direct discharge pipeline
Q 2 Second wastewater direct discharge pipeline 14a First flow limiting valve
14b Second flow limiting valve 15a First check valve
15b Second check valve 15c Third check valve
16 High-voltage switch 13 Water outlet assembly
131 Drinking water inlet 132 Water inlet for domestic water
133 Water outlet 13a Drinking water outlet assembly
13b Domestic water outlet assembly 131a Drinking water outlet
131b Domestic water outlet 17a Front filter element
17b Rear filter element 18a First switch valve
18b Second switch valve 19a First TDS Probe
19b Second TDS Probe
The objects, features and advantages of the present invention will be further described 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 some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or 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 the a and B aspects. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Please refer to fig. 1 to 4, the present application provides a waterway system with a dual TDS probe, which comprises a booster pump, a first reverse osmosis filter element, a high-voltage switch and a water outlet assembly, wherein the water outlet assembly is provided with a water outlet, a drinking water inlet and a domestic water inlet, the drinking water inlet is communicated with the high-voltage switch, the domestic water inlet is communicated with a wastewater outlet of the first reverse osmosis filter element, the waterway system with the dual TDS probe further comprises a first wastewater direct discharge pipeline, a first TDS probe, a second TDS probe and an electric control unit. One end of a first wastewater direct discharge pipeline is communicated with a wastewater port of the first reverse osmosis filter element, a first flow limiting valve and a first switch valve are sequentially arranged on the first wastewater direct discharge pipeline along the upstream and downstream directions, and the first flow limiting valve has a flow limiting state and a full-open state (the flow is smaller in the flow limiting state, the flow can be 5% -80% in the full-open state, and more preferably, the flow can be 10% -30% in the 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 with the flow direction facing the water inlet of the booster pump is arranged on the first branch pipeline. First TDS probe and second TDS probe correspond respectively and set up between the upper reaches of booster pump and first reverse osmosis filter core and drinking water inlet. The electronic control unit is connected with the booster pump, the high-voltage switch, the first flow limiting valve, the first switch valve, the first TDS probe and the second TDS probe.
To the many problems of present water purifier waste water, the application provides a waterway system of probe with two TDS, with waste water through the pipeline backward flow to first reverse osmosis filter core before, mix back reentrant first reverse osmosis filter core with the running water and carry out the secondary filter. The method can greatly reduce the discharge of waste water while ensuring the performance and the service life of the first reverse osmosis filter element; meanwhile, the waste water is connected with an original tap water faucet in a household kitchen of a life faucet user, when the life faucet is opened, waste water discharge is completed, 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 low.
Specifically, the first embodiment: please refer to fig. 1. The first reverse osmosis filter element 11a has a first water inlet 111, a first water outlet 112 and a first waste water outlet 113; the booster pump 12 has a pump inlet 121 and a pump outlet 122, the pump inlet 121 is used for communicating with a water source, the pump outlet 122 is communicated with the first water inlet 111, and the first waste water outlet 113 is communicated with one end of the first waste water direct discharge pipeline Q1. The water outlet assembly 13 has a water outlet 133, a drinking water inlet 131 and a domestic water inlet 132; the drinking water inlet 131 is communicated with the first water outlet 112, and the domestic water inlet 132 is communicated with the first waste water outlet 113. The first flow restriction valve 14a has a flow restriction function and is disposed on the first straight wastewater discharge pipe Q1, and the first flow restriction valve 14a flows from the first wastewater port 113 to the other end of the first straight wastewater discharge pipe Q1. The first on-off valve 18a is provided on the first waste water straight line Q1, and the first on-off valve 18a is located downstream of the first flow restriction valve 14a, and the flow path between the first on-off valve 18a and the first flow restriction valve 14a communicates with the pump inlet 121 through the first branch line P1. The first check valve 15a is provided in the first branch P1, and the flow direction of the first check valve 15a flows from the first waste water port 113 to the pump inlet 121. The high-voltage switch 16 is disposed between the first water outlet 112 and the drinking water inlet 131. An electronic control unit (not shown) for turning on the booster pump 12 and turning off the first switching valve 18a when sensing a signal that the high voltage switch 16 is triggered; and when the salt rejection rates detected by the first TDS sensing probe 19a and the second TDS sensing probe 19b are lower than a preset value, the first on-off valve 18a is opened. The electronic control unit is further used for controlling the first on-off valve 18a to open when the TDS value detected by the second TDS probe 19b is greater than the preset value and the triggered signal of the high-voltage switch 16 is terminated.
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 waste water return pipeline is a valve body with a flow limiting function; the first switch valve 18a on the waste water direct discharge pipeline is a valve body with a full-open or full-close function; the second non-return valve 15b, in combination with the high-pressure switch 16, 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 high-pressure switch 16 receives a stable pressure signal and keeps an off state.
The user turns on the drinking water tap (drinking water inlet 131 communicates with outlet 133): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; after running water flows into the first reverse osmosis filter element 11a, pure water and waste water are separated into a path, the pure water is discharged by a drinking water faucet for drinking, and the waste water is mixed with the running water and enters the first reverse osmosis filter element 11a again for filtration before flowing back to the booster pump 12 through the first flow limiting valve 14a, so that zero discharge of the waste water is realized.
Improving the water break phenomenon: the first reverse osmosis filter element 11a is a reverse osmosis process, so a booster pump 12 is required to be added at the front end to make the front pressure of the first reverse osmosis filter element 11a greater than the osmotic pressure. The water cut-off phenomenon is that under normal conditions, because the first flow limiting valve 14a on the waste water pipeline of the first reverse osmosis filter element 11a is not in a closed state, after the water making process is finished, residual water on the water inlet side (same as the waste water side) of the first reverse osmosis filter element 11a is gradually discharged to the waste water pipeline under the pressure in front of the first reverse osmosis filter element 11a, so that the first reverse osmosis filter element 11a cannot be filled with water. When the water purifier is restarted, tap water first fills the first reverse osmosis filter element 11a, and pure water is discharged, so that the phenomenon of water cut-off is caused. This system is because waste water backward flow seals the waste water pipeline, consequently after the system water, and waste water can not discharge under the effect of residual pressure, and the water content keeps in first reverse osmosis filter core 11a, "the water cut-off" phenomenon can be solved, improves user experience and feels.
The user turns on the life tap (the life water inlet 132 communicates with the drain 133): tap water enters the first reverse osmosis filter element 11a through the booster pump 12 (the pump is not started) and then flows out of the waste water side of the first reverse osmosis filter element 11a in two ways, one way of the tap water is directly discharged through a domestic water faucet in a large flow rate, and the other way of the tap water flows back to the booster pump 12 through the first flow limiting valve 14a (the flow is limited and small in flow rate) and then enters the first reverse osmosis filter element 11a again to flush the waste water side of the first reverse osmosis filter element 11a after being mixed with the tap water. Namely, when a user opens the life faucet, tap water with lower ion concentration can replace the waste water with high ion concentration accumulated at the waste water side of the first reverse osmosis filter element 11a, and the problem of the first cup of water is effectively solved. And because domestic water flow is great, when passing through first reverse osmosis filter core 11a, can wash the pollutant such as the sedimentary incrustation scale of first reverse osmosis filter core 11a waste water side surface, organic matter, reduce first reverse osmosis filter core 11a scale deposit risk, extension first reverse osmosis filter core 11a life. Meanwhile, the process can flush the wastewater backflow waterway and the first flow limiting valve 14a, so that the risk of blockage of the first flow limiting valve 14a due to scaling is reduced, and the service life of the first reverse osmosis filter element 11a is further prolonged. When the domestic faucet is opened, the waste water generated and accumulated in the water production process can be discharged through the domestic faucet for domestic water use, and the waste water utilization is realized in the true sense.
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 (the 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 row pipeline Q1 of first waste water, the play water TDS can resume initial level in the short time, and weak influence to the 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 2 (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 first waste water outlet 113 after entering the first reverse osmosis filter element 11a by means of the pressure of the tap water and is directly discharged into the first waste water direct discharge pipeline Q1, the replacement of water in the first reverse osmosis filter element 11a and the first waste water direct discharge pipeline Q1 is completed, the first reverse osmosis filter element 11a and the first flow limiting valve 14a are prevented from scaling, and the service life of the first reverse osmosis filter element 11a and the service life of 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 waste water return line for a long time, causes the incrustation scale deposit and influences life's problem.
Example two: please refer to fig. 2. In this embodiment, a front filter element 17a is added to the front end of the booster pump 12, the type of the front filter element 17a 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 either before the wastewater return line, before the pre-filter 17a or after the pre-filter 17 a.
The user turns on the drinking water tap (drinking water inlet 131 communicates with outlet 133): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; tap water is coarsely filtered by the preposed filter element 17a and then flows into the first reverse osmosis filter element 11a, and then is divided into a path of pure water and a path of waste water, the pure water is discharged by a drinking water faucet for drinking, the waste water flows back to the front of the booster pump 12 through the first flow limiting valve 14a and is mixed with the preposed 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 tap (the life water inlet 132 communicates with the drain 133): tap water enters the first reverse osmosis filter element 11a through the booster pump 12 (the pump is not started) and then flows out of the first reverse osmosis filter element 11a from the waste water side in two ways, one way of the tap water is directly discharged through a domestic tap with large flow, and the other way of the tap water flows back to the booster pump 12 through the first flow limiting valve 14a (with flow limitation and small flow) and then enters the first reverse osmosis filter element 11a again to flush the waste water side of the first reverse osmosis filter element 11a after being mixed with the tap water; namely, when a user opens the life faucet, tap water with lower ion concentration can replace the waste water with high ion concentration accumulated at the waste water side of the first reverse osmosis filter element 11a, and the problem of the first cup of water is effectively solved. Moreover, as the domestic water flow is large, when the domestic water passes through the first reverse osmosis filter element 11a, pollutants such as water scale and organic matters deposited on the side surface of the wastewater of the first reverse osmosis filter element 11a can be washed away, the scaling risk of the first reverse osmosis filter element 11a is reduced, and the service life of the first reverse osmosis filter element 11a is prolonged; meanwhile, the process can flush the wastewater 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, 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 (the 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 row pipeline Q1 of first waste water, the play water TDS can resume initial level in the short time, and weak influence to the 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 2 (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 first waste water outlet 113 after entering the first reverse osmosis filter element 11a by means of the pressure of the tap water and is directly discharged into the first waste water direct discharge pipeline Q1, the replacement of water in the first reverse osmosis filter element 11a and the first waste water direct discharge pipeline Q1 is completed, the first reverse osmosis filter element 11a and the first flow limiting valve 14a are prevented from scaling, and the service life of the first reverse osmosis filter element 11a and the service life of 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 waste water return line for a long time, causes the incrustation scale deposit and influences life's problem.
Example three: please refer to fig. 3. In this embodiment, based on the first embodiment, a post-filter 17b is added to the pure water outlet pipe of the first reverse osmosis filter 11a before the second check valve 15b and the high-pressure switch 16, and the type of the post-filter 17b may be different forms of activated carbon. The second TDS probe 19b can be either behind the first reverse osmosis filter element 11a, behind the post filter element 17b, the high pressure switch 16, or the second one-way valve 15 b.
The user turns on the drinking water tap (drinking water inlet 131 communicates with outlet 133): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts to produce water; tap water is divided into a path of pure water and a path of waste water after flowing into the first reverse osmosis filter element 11a, the pure water is discharged by a drinking water faucet for drinking after passing through the post-positioned filter element 17b, and the waste water is mixed with the tap water before flowing back to the booster pump 12 through the first flow limiting valve 14a and then enters the first reverse osmosis filter element 11a again for filtration, so that zero discharge of the waste water is realized.
The user turns on the life tap (the life water inlet 132 communicates with the drain 133): tap water enters the first reverse osmosis filter element 11a through the booster pump 12 (the pump is not started) and then flows out of the waste water side of the first reverse osmosis filter element 11a in two ways, one way of the tap water is directly discharged through a domestic tap in a large flow rate, and the other way of the tap water flows back to the booster pump 12 through the first flow limiting valve 14a (the flow is limited and small), is mixed with the tap water and then enters the first reverse osmosis filter element 11a again to flush the waste water side of the first reverse osmosis filter element 11 a; namely, when a user opens the life faucet, tap water with lower ion concentration can replace the waste water with high ion concentration accumulated at the waste water side of the first reverse osmosis filter element 11a, 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, 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 (the 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 row pipeline Q1 of first waste water, the play water TDS can resume initial level in the short time, and weak influence to the 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 2 (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 first waste water outlet 113 after entering the first reverse osmosis filter element 11a by means of the pressure of the tap water and is directly discharged into the first waste water direct discharge pipeline Q1, the replacement of water in the first reverse osmosis filter element 11a and the first waste water direct discharge pipeline Q1 is completed, the first reverse osmosis filter element 11a and the first flow limiting valve 14a are prevented from scaling, and the service life of the first reverse osmosis filter element 11a and the service life of 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 waste water return line for a long time, causes the incrustation scale deposit and influences life's problem.
Example four: please refer to fig. 4. The embodiment is based on the first embodiment, in which 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 high-pressure switch 16; 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 user turns on the drinking water tap (drinking water inlet 131 communicates with outlet 133): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; tap water is coarsely filtered by the front filter element 17a and then flows into the first reverse osmosis filter element 11a, and then is divided into a path of pure water and a path of wastewater, the pure water is discharged by a drinking water faucet for drinking after passing through the rear filter element 17b, and the wastewater flows back to the front of the booster pump 12 through the first flow limiting valve 14a to be 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 tap (the life water inlet 132 communicates with the drain 133): tap water enters the first reverse osmosis filter element 11a through the booster pump 12 (the pump is not started) and then flows out of the waste water side of the first reverse osmosis filter element 11a in two ways, one way of the tap water is directly discharged through a domestic tap in a large flow rate, and the other way of the tap water flows back to the booster pump 12 through the first flow limiting valve 14a (the flow is limited and small), is mixed with the tap water and then enters the first reverse osmosis filter element 11a again to flush the waste water side of the first reverse osmosis filter element 11 a; namely, when a user opens the life faucet, tap water with lower ion concentration can replace the waste water with high ion concentration accumulated at the waste water side of the first reverse osmosis filter element 11a, 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.
Direct wastewater discharge 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 (the 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 row pipeline Q1 of first waste water, the play water TDS can resume initial level in the short time, and weak influence to the 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 2 (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 first waste water outlet 113 after entering the first reverse osmosis filter element 11a by means of the pressure of the tap water and is directly discharged into the first waste water direct discharge pipeline Q1, the replacement of water in the first reverse osmosis filter element 11a and the first waste water direct discharge pipeline Q1 is completed, the first reverse osmosis filter element 11a and the first flow limiting valve 14a are prevented from scaling, and the service life of the first reverse osmosis filter element 11a and the service life of 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 waste water return line for a long time, causes the incrustation scale deposit and influences life's problem.
Example five: please refer to fig. 5. In this embodiment, a second reverse osmosis filter element 11b is added on the basis of the first embodiment. The waterway system with the double-TDS probe further comprises a second reverse osmosis filter element 11b, the second reverse osmosis filter element 11b is arranged on a flow path between the first waste water port 113 and the first flow limiting valve 14a, the second reverse osmosis filter element 11b is provided with a second water inlet 114, a second water outlet 115 and a second waste water port 116, the second water inlet 114 is communicated with the first waste water port 113, the second waste water port 116 is communicated with a water inlet end of the first flow limiting valve 14a, and the second water outlet 115 is communicated with a flow path between the first water outlet 112 and the second check valve 15 b.
The user opens the drinking water tap (the drinking water inlet 131 communicates with the drain 133): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts to produce water; after running water flows into the first reverse osmosis filter element 11a, the running water is divided into one path of pure water and one path of wastewater, the pure water flows to the second one-way valve 15b, the wastewater flows into the second reverse osmosis filter element 11b and is subjected to secondary filtration, the pure water flows to the second one-way valve 15b and is converged with a water path from the first water outlet 112, the pure water is discharged through a drinking water faucet for drinking, the wastewater is mixed with the running water before flowing back to the booster pump 12 through the first flow limiting valve 14a and enters the first reverse osmosis filter element 11a again for filtration, and zero discharge of the wastewater is realized.
The user turns on the life tap (the life water inlet 132 communicates with the drain 133): tap water enters the first reverse osmosis filter element 11a through the booster pump 12 (the pump is not started) and then flows out of the wastewater side of the first reverse osmosis filter element 11a, enters the second reverse osmosis filter element 11b and then flows out of the wastewater side of the second reverse osmosis filter element 11b in two ways, one way of the tap water is directly discharged through a domestic faucet, the other way of the tap water flows back to the booster pump 12 through the first flow limiting valve 14a (with flow limitation and small flow), and then the tap water is mixed with the tap water and then enters the two reverse osmosis filter elements again to flush the wastewater sides of the two reverse osmosis filter elements. Namely, when a user opens the domestic faucet, tap water with lower ion concentration can replace waste water with high ion concentration accumulated at the waste water side of the two reverse osmosis filter elements, and the problem of the first cup of water is effectively solved. And because the domestic water flow is large, when passing through the two reverse osmosis filter elements, 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 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, 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 row pipeline Q1 of first 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 2 (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 is discharged from the second wastewater outlet 116 after sequentially entering the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b depending on the pressure of tap water, and is directly discharged into the first wastewater direct discharge pipeline Q1, so that the replacement of water in the two reverse osmosis filter elements and the first wastewater direct discharge pipeline Q1 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 for a long time in two reverse osmosis filter cores and waste water return line, causes the incrustation scale deposit and influences life's problem.
Example six: please refer to fig. 6. In this embodiment, a front filter element 17a is added to the front end of the booster pump 12, the type of the front filter element 17a 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 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: the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; tap water flows into the first reverse osmosis filter element 11a after being roughly filtered by the front filter element 17a, and then is divided into one path of pure water and one path of wastewater, the pure water flows to the second one-way valve 15b, the wastewater flows into the second reverse osmosis filter element 11b and is divided into one path of pure water and one path of wastewater after being secondarily filtered, the pure water flows to the second one-way valve 15b and is converged with a water path from the first water outlet 112, the pure water is discharged through the drinking water faucet for drinking, the wastewater flows back to the booster pump 12 through the first flow limiting valve 14a and then is mixed with the front water to enter the first reverse osmosis filter element 11a again for filtering, and zero discharge of the wastewater is realized.
The user turns on the life tap (the life water inlet 132 communicates with the drain 133): tap water enters the first reverse osmosis filter element 11a through the booster pump 12 (the pump is not started) and then flows out of the wastewater side of the first reverse osmosis filter element 11a, enters the second reverse osmosis filter element 11b and then flows out of the wastewater side of the second reverse osmosis filter element 11b in two ways, one way of the tap water is directly discharged through a domestic faucet, the other way of the tap water flows back to the booster pump 12 through the first flow limiting valve 14a (with flow limitation and small flow), and then the tap water is mixed with the tap water and then enters the two reverse osmosis filter elements again to flush the wastewater sides of the two reverse osmosis filter elements. Namely, when a user opens the domestic faucet, tap water with lower ion concentration can replace waste water with high ion concentration accumulated at the waste water side of the two reverse osmosis filter elements, so that the problem of the first cup of water is effectively solved. And because the domestic water flow is large, when passing through the two reverse osmosis filter elements, 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 row pipeline Q1 of first 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 2 (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 is discharged from the second wastewater outlet 116 after sequentially entering the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b depending on the pressure of tap water, and is directly discharged into the first wastewater direct discharge pipeline Q1, so that the replacement of water in the two reverse osmosis filter elements and the first wastewater direct discharge pipeline Q1 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 for a long time in two reverse osmosis filter cores and waste water return line, causes the incrustation scale deposit and influences life's problem.
Example seven: please refer to fig. 7. In this embodiment, based on the fifth embodiment, a post-filter 17b is added to the pure water outlet pipes of the first and second reverse osmosis filter elements 11a and 11b, before the second check valve 15b and the high pressure switch 16, and the type of the post-filter 17b may be different forms of activated carbon. The second TDS probe 19b can be either behind the first reverse osmosis filter element 11a, behind the post filter element 17b, the high pressure switch 16, or the second one-way valve 15 b.
The user opens the drinking water tap: the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; tap water is divided into a path of pure water and a path of waste water after flowing into the first reverse osmosis filter element 11a, the pure water flows to the second one-way valve 15b, the waste water flows into the second reverse osmosis filter element 11b and is divided into a path of pure water and a path of waste water after secondary filtration, the pure water flows to the second one-way valve 15b and is converged with a water path from the first water outlet 112, the pure water is discharged by a drinking water faucet for drinking after passing through the rear filter element 17b, the waste water is mixed with the tap water before flowing back to the booster pump 12 through the first flow limiting valve 14a and enters the first reverse osmosis filter element 11a again for secondary filtration, and zero discharge of the waste water is realized.
The user turns on the life tap (the life water inlet 132 communicates with the drain 133): tap water enters the first reverse osmosis filter element 11a through the booster pump 12 (the pump is not started) and then flows out of the wastewater side of the first reverse osmosis filter element 11a, enters the second reverse osmosis filter element 11b and then flows out of the wastewater side of the second reverse osmosis filter element 11b in two ways, one way of the tap water is directly discharged through a domestic faucet, the other way of the tap water flows back to the booster pump 12 through the first flow limiting valve 14a (with flow limitation and small flow), and then the tap water is mixed with the tap water and then enters the two reverse osmosis filter elements again to flush the wastewater sides of the two reverse osmosis filter elements. Namely, when a user opens the domestic faucet, tap water with lower ion concentration can replace waste water with high ion concentration accumulated at the waste water side of the two reverse osmosis filter elements, and the problem of the first cup of water is effectively solved. And because the domestic water flow is large, when passing through the two reverse osmosis filter elements, 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 row pipeline Q1 of first 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 2 (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 is discharged from the second wastewater outlet 116 after sequentially entering the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b depending on the pressure of tap water, and is directly discharged into the first wastewater direct discharge pipeline Q1, so that the replacement of water in the two reverse osmosis filter elements and the first wastewater direct discharge pipeline Q1 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 for a long time in two reverse osmosis filter cores and waste water return line, causes the incrustation scale deposit and influences life's problem.
Example eight: please refer to fig. 8. In the embodiment, on the basis of the fifth embodiment, a front filter element 17a is added at the front end of the booster pump 12, and a rear filter element 17b is added on pure water outlet pipelines of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b and in front of the second one-way valve 15b and the high-pressure switch 16; 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 either behind the first reverse osmosis filter element 11a, behind the post filter element 17b, the high pressure switch 16, or the second one-way valve 15 b.
The user opens the drinking water tap: the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts to produce water; 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 one path of pure water and one path of wastewater, the pure water flows to the second one-way valve 15b, the wastewater flows into the second reverse osmosis filter element 11b and is secondarily filtered, the pure water flows to the second one-way valve 15b and is converged with a water path from the first water outlet 112, the pure water is discharged by a drinking water faucet for drinking after passing through the postposition filter element 17b, the wastewater flows back to the booster pump 12 through the first flow limiting valve 14a and then is mixed with preposed effluent to enter the first reverse osmosis filter element 11a again for secondary filtration, and zero discharge of the wastewater is realized.
The user turns on the life tap (the life water inlet 132 communicates with the drain 133): tap water enters the first reverse osmosis filter element 11a through the booster pump 12 (the pump is not started) and then flows out of the wastewater side of the first reverse osmosis filter element 11a, enters the second reverse osmosis filter element 11b and then flows out of the wastewater side of the second reverse osmosis filter element 11b in two ways, one way of the tap water is directly discharged through a domestic faucet, the other way of the tap water flows back to the booster pump 12 through the first flow limiting valve 14a (with flow limitation and small flow), and then the tap water is mixed with the tap water and then enters the two reverse osmosis filter elements again to flush the wastewater sides of the two reverse osmosis filter elements. Namely, when a user opens the domestic faucet, tap water with lower ion concentration can replace waste water with high ion concentration accumulated at the waste water side of the two reverse osmosis filter elements, and the problem of the first cup of water is effectively solved. And because the domestic water flow is large, when passing through the two reverse osmosis filter elements, 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 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 backflow of waste water, the TDS (total dissolved solids) of the outlet water can be increased along with the increase of water taking time, and 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 in time), the booster pump 12 keeps starting, namely, a normal water making state is kept, the first switch valve 18a is opened, waste water generated by the two reverse osmosis filter elements is discharged along with the first waste water direct discharging pipeline Q1, 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 2 (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 is discharged from the second wastewater outlet 116 after sequentially entering the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b depending on the pressure of tap water, and is directly discharged into the first wastewater direct discharge pipeline Q1, so that the replacement of water in the two reverse osmosis filter elements and the first wastewater direct discharge pipeline Q1 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 for a long time in two reverse osmosis filter cores and waste water return line, causes the incrustation scale deposit and influences life's problem.
Example nine: please refer to fig. 9. In this embodiment, a second reverse osmosis filter element 11b is added on the basis of the first embodiment, and is connected with the first reverse osmosis filter element 11a in parallel. The second reverse osmosis filter element 11b is provided with a second water inlet 114, a second water outlet 115 and a second waste water outlet 116, the second water inlet 114 of the second reverse osmosis filter element 11b is communicated with the outlet of the booster pump 12, the second waste water outlet 116 of the second reverse osmosis filter element 11b is communicated with one end of a second waste water direct discharge pipeline Q2, a second flow limiting valve 14b and a second switch valve 18b are arranged on the second waste water direct discharge pipeline Q2, and the second flow limiting valve 14b has a flow limiting state and a full open state; the second switching valve 18b is located downstream of the second flow restriction valve 14b, the flow path between the second switching valve 18b and the second flow restriction valve 14b communicates with the pump inlet 121 via a second branch P2, and a third check valve 15c that flows toward the inlet 121 of the booster pump 12 is provided in the second branch P2. The electronic control unit is used for closing the second switch valve 18b when sensing a signal that the high-voltage switch 16 is triggered; and when the salt rejection rates detected by the first TDS sensing probe 19a and the second TDS sensing probe 19b are lower than a preset value, the second on-off valve 18b is opened.
The user turns on the drinking water tap (the drinking water inlet 131 is communicated with the drinking water outlet 131 a): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts to produce water; running water respectively enters the two reverse osmosis filter elements, is filtered and then is converged, and is discharged through the drinking faucet for drinking; the wastewater flows back to the booster pump 12 through the two flow limiting valves, is mixed with tap water and then enters the two reverse osmosis filter elements again for secondary filtration, and zero discharge of the wastewater is realized.
The user turns on the life tap (the life water inlet 132 is communicated with the life water outlet 131 b): running water respectively enters the two reverse osmosis filter elements after passing through the booster pump 12 (the pump is not started) and then respectively flows out of the two reverse osmosis filter elements from the waste water sides of the two reverse osmosis filter elements in two paths, one path of the running water is converged with a large flow rate and then directly discharged through a domestic faucet, and the other path of the running water is returned to the booster pump 12 through the two flow limiting valves (the flow is limited and the flow is small) and then mixed with the running water, and then the running water enters the two reverse osmosis filter elements again to flush the waste water sides; namely, when a user opens the domestic water tap (the domestic water inlet 132 is communicated with the domestic water outlet 131 b), tap water with lower ion concentration can replace waste water with high ion concentration accumulated on the waste water side of the two reverse osmosis filter elements, and the problem of first cup of water is effectively solved. And because the domestic water flow is large, when passing through the two reverse osmosis filter elements, 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; simultaneously this process can wash two waste water direct vent pipelines and two restriction valves, reduces two restriction valves because of the risk that the scale deposit blockked up, further prolongs the life-span of two reverse osmosis filter cores. 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 (the 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 two waste water straight-line pipelines, the initial level can be resumeed in the 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 side after entering the two reverse osmosis filter elements by means of the pressure of tap water and is directly discharged into a wastewater direct discharge pipeline, the water replacement of the two reverse osmosis filter elements and the two wastewater backflow direct discharge pipelines is completed, the two reverse osmosis filter elements and the two flow limiting valves 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 (life water inlet 132 switches on with life water delivery port 131 b) and can accomplish the washing to two reverse osmosis filter cores and two waste water backward flow direct vent pipelines, and this procedure mainly used avoids having no use life water needs after the user has got the drinking water, makes backward flow waste water be detained for a long time in two reverse osmosis filter cores and two waste water direct vent pipelines, causes the incrustation scale deposit and influences life's problem.
Example ten: please refer to fig. 10. In this embodiment, on the basis of the ninth embodiment, a pre-filter 17a is added to the front end of the booster pump 12; the type of the preposed filter element 17a can be PP with different forms, active carbon with different forms, ultrafiltration, nanofiltration, composite filter elements made of the materials and the like, and the 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 (the drinking water inlet 131 is communicated with the drinking water outlet 131 a): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; the tap water is coarsely filtered by the preposed filter element 17a, then respectively enters the two reverse osmosis filter elements, is converged after being filtered, and is discharged by the drinking faucet for drinking; the wastewater flows back to the front of the booster pump 12 through the two flow limiting valves and is mixed with the front effluent to enter 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 life water inlet 132 is communicated with the life water outlet 131 b): running water respectively enters the two reverse osmosis filter elements after passing through the booster pump 12 (the pump is not started) and then respectively flows out of the two reverse osmosis filter elements from the waste water sides in two paths, one path is converged with a large flow rate and then directly discharged through a domestic water faucet, and the other path is returned to the booster pump 12 through the two flow limiting valves (the flow is limited and the flow is small), mixed with the running water and then enters the two reverse osmosis filter elements again to flush the waste water sides; that is, when a user opens the life tap (the life water inlet 132 is communicated with the life water outlet 131 b), tap water with lower ion concentration can replace waste water with high ion concentration accumulated at the waste water side of the two reverse osmosis filter elements, so that the problem of the first cup of water is effectively solved. And because the domestic water flow is large, when passing through the two reverse osmosis filter elements, 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; simultaneously, the process can flush two waste water direct discharge pipelines and two flow limiting valves, the risk of blockage of the two flow limiting valves due to scaling is reduced, and the service lives of the two reverse osmosis filter elements are further prolonged. When the domestic faucet is opened, the waste water generated and accumulated in the water production process can be discharged through the domestic faucet for domestic water use, and the waste water utilization is realized in the true sense.
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 water TDS, consequently, the design is after the user gets the drinking water time and reaches a definite value (preferred 1-5min), start the straight row procedure of waste water (preferred 5-300s of time), booster pump 12 keeps starting, keep 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, can resume initial level in the 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 side after entering the two reverse osmosis filter elements by means of the pressure of tap water and is directly discharged into a wastewater direct discharge pipeline, the water replacement of the two reverse osmosis filter elements and the two wastewater backflow direct discharge pipelines is completed, the two reverse osmosis filter elements and the two flow limiting valves 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 (life water inlet 132 switches on with life water delivery port 131 b) and can accomplish the washing to two reverse osmosis filter cores and two waste water backward flow direct vent pipelines, and this procedure mainly used avoids having no use life water needs after the user has got the drinking water, makes backward flow waste water be detained for a long time in two reverse osmosis filter cores and two waste water direct vent pipelines, causes the incrustation scale deposit and influences life's problem.
Example eleven: please refer to fig. 11. In this embodiment, on the basis of the ninth embodiment, a post-filter element 17b is added to a pure water outlet converging 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 high-pressure switch 16; the kind of the post-filter 17b may be activated carbon of different forms. The second TDS probe 19b can be either behind the first reverse osmosis filter element 11a, behind the post filter element 17b, the high pressure switch 16, or the second one-way valve 15 b.
The user opens the drinking water tap (the drinking water inlet 131 is communicated with the drinking water outlet 131 a): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts 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 tap (the life water inlet 132 is communicated with the life water outlet 131 b): running water respectively enters the two reverse osmosis filter elements after passing through the booster pump 12 (the pump is not started) and then respectively flows out of the two reverse osmosis filter elements from the waste water sides of the two reverse osmosis filter elements in two paths, one path is converged with a large flow rate and then directly discharged through a domestic water faucet, and the other path is returned to the booster pump 12 through the two flow limiting valves (the flow is limited and the flow is small), mixed with the running water and then enters the two reverse osmosis filter elements again to flush the waste water sides; namely, when a user opens the domestic water tap (the domestic water inlet 132 is communicated with the domestic water outlet 131 b), tap water with lower ion concentration can replace waste water with high ion concentration accumulated on the waste water side of the two reverse osmosis filter elements, and the problem of first cup of water is effectively solved. And because the domestic water flow is large, when passing through the two reverse osmosis filter elements, 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; simultaneously this process can wash two waste water direct vent pipelines and two restriction valves, reduces two restriction valves because of the risk that the scale deposit blockked up, further prolongs the life-span of two reverse osmosis filter cores. 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 (the 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 in the play water TDS short time, and it is less to the influence of drinking water flux.
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 side after entering the two reverse osmosis filter elements by means of the pressure of tap water and is directly discharged into a wastewater direct discharge pipeline, the water replacement of the two reverse osmosis filter elements and the two wastewater backflow direct discharge pipelines is completed, the two reverse osmosis filter elements and the two flow limiting valves 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 (life water inlet 132 switches on with life water delivery port 131 b) and can accomplish the washing to two reverse osmosis filter cores and two waste water backward flow direct vent pipelines, and this procedure mainly used avoids having no use life water needs after the user has got the drinking water, makes backward flow waste water be detained for a long time in two reverse osmosis filter cores and two waste water direct vent pipelines, causes the incrustation scale deposit and influences life's problem.
Example twelve: please refer to fig. 12. In this embodiment, on the basis of the ninth embodiment, a front filter element 17a is added at the front end of the booster pump 12, and a rear filter element 17b is added on the pure water outlet merging pipeline of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, and in front of the second one-way valve 15b and the high-pressure switch 16; 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 either behind the first reverse osmosis filter element 11a, behind the post filter element 17b, the high pressure switch 16, or the second one-way valve 15 b.
The user turns on the drinking water tap (the drinking water inlet 131 is communicated with the drinking water outlet 131 a): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; 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 after being filtered, pure water pipelines of the two reverse osmosis filter elements are converged, and after passing through the postposition filter element 17b, the tap water is discharged by a drinking water tap 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 pre-discharged water, and then enters the two reverse osmosis filter elements again for secondary filtration, so that zero discharge of the wastewater is realized.
The user turns on the life tap (the life water inlet 132 is communicated with the life water outlet 131 b): running water respectively enters the two reverse osmosis filter elements after passing through the booster pump 12 (the pump is not started) and then respectively flows out of the two reverse osmosis filter elements from the waste water sides of the two reverse osmosis filter elements in two paths, one path is converged with a large flow rate and then directly discharged through a domestic water faucet, and the other path is returned to the booster pump 12 through the two flow limiting valves (the flow is limited and the flow is small), mixed with the running water and then enters the two reverse osmosis filter elements again to flush the waste water sides; namely, when a user opens the domestic water tap (the domestic water inlet 132 is communicated with the domestic water outlet 131 b), tap water with lower ion concentration can replace waste water with high ion concentration accumulated on the waste water side of the two reverse osmosis filter elements, and the problem of first cup of water is effectively solved. And because the domestic water flow is large, when passing through the two reverse osmosis filter elements, 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; simultaneously, the process can flush two waste water direct discharge pipelines and two flow limiting valves, the risk of blockage of the two flow limiting valves due to scaling is reduced, and the service lives of the two reverse osmosis filter elements are further prolonged. When the domestic faucet is opened, the waste water generated and accumulated in the water production process can be discharged through the domestic faucet for domestic water use, and the waste water utilization is realized in the true sense.
Wastewater straight-line procedure 1: when the user gets drinking water, because the waste water backward flow, the TDS of play water can increase along with the increase of water intaking time, consequently, design when first TDS probe 19a and second TDS probe 19b detect the system desalination rate and be less than the setting value (preferably 70-95%), start the straight row procedure of waste water (the preferred 5-300s of time), booster pump 12 keeps starting, keeps normal water making state promptly, first ooff valve 18a and second ooff valve 18b open, the waste water that two reverse osmosis filter cores produced is discharged along with the straight pipeline of waste water, the initial level can be resumeed in the TDS of play water 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 side after entering the two reverse osmosis filter elements by means of the pressure of tap water and is directly discharged into a wastewater direct discharge pipeline, the water replacement of the two reverse osmosis filter elements and the two wastewater backflow direct discharge pipelines is completed, the two reverse osmosis filter elements and the two flow limiting valves 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 (life water inlet 132 switches on with life water delivery port 131 b) and can accomplish the washing to two reverse osmosis filter cores and two waste water backward flow direct vent pipelines, and this procedure mainly used avoids having no use life water needs after the user has got the drinking water, makes backward flow waste water be detained for a long time in two reverse osmosis filter cores and two waste water direct vent pipelines, causes the incrustation scale deposit and influences life's problem.
Example thirteen: please refer to fig. 13. In the present embodiment, different from the first embodiment, the water outlet assembly 13 includes a drinking water outlet assembly 13a and a domestic water outlet assembly 13b which are independent of each other, the drinking water outlet assembly 13a has a drinking water inlet 131, the domestic water outlet assembly 13b has a domestic water inlet 132, and the water outlet 133 includes a drinking water outlet 131a disposed on the drinking water assembly and a domestic water outlet 131b disposed on the domestic water assembly.
The pure water outlet end of the first reverse osmosis filter element 11a is connected with the end of a drinking water faucet, and a second one-way valve 15b and a high-pressure switch 16 are sequentially arranged 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 existing kitchen faucet of a user home, 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 and is used for directly discharging the waste water when necessary. A first TDS probe 19a is arranged at the front end of the first reverse osmosis filter element 11a and the front end of the wastewater 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 waste water return pipeline is a valve body with a flow limiting function; the first switch valve 18a on the first wastewater direct discharge pipeline Q1 is a valve body with a full-open or full-close function; the second one-way valve 15b, in combination with the high-pressure switch 16, 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 high-pressure switch 16 receives a stable pressure signal and keeps an off state.
The user turns on the drinking water tap (the drinking water inlet 131 is communicated with the drinking water outlet 131 a): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; after tap water flows into the first reverse osmosis filter element 11a, the tap water is divided into a path of pure water and a path of wastewater, the pure water is discharged by a drinking water faucet for drinking, the wastewater is mixed with the tap water before flowing back to the booster pump 12 through the first flow limiting valve 14a and then enters the first reverse osmosis filter element 11a again for filtration, and zero discharge of the wastewater is realized.
The user turns on the life tap (the life water inlet 132 is communicated with the life water outlet 131 b): tap water enters the first reverse osmosis filter element 11a through the booster pump 12 (the pump is not started) and then flows out of the wastewater side of the first reverse osmosis filter element 11a in two ways, one way of the tap water is directly discharged through a tap water tap, and the other way of the tap water flows back to the booster pump 12 through the first flow limiting valve 14a (the flow is limited and small), is mixed with the tap water and then enters the first reverse osmosis filter element 11a again to flush the wastewater side of the first reverse osmosis filter element 11 a; namely, when a user opens the life faucet, tap water with lower ion concentration can replace the waste water with high ion concentration accumulated at the waste water side of the first reverse osmosis filter element 11a, and the problem of the first cup of water is effectively solved. Moreover, as the flow rate of tap water is large, when the tap water passes through the first reverse osmosis filter element 11a, pollutants such as scale and organic matters deposited on the side surface of the wastewater of the first reverse osmosis filter element 11a can be washed away, the scaling risk of the first reverse osmosis filter element 11a is reduced, and the service life of the first reverse osmosis filter element 11a is prolonged; meanwhile, the process can flush the wastewater 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 tap is opened, the waste water generated and accumulated in the water making process can be discharged through the tap for domestic water use, and the waste water utilization is realized in a real sense.
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 (the 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 row pipeline Q1 of first waste water, the play water TDS can resume initial level in the short time, and weak influence to the 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 2 (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 first waste water outlet 113 after entering the first reverse osmosis filter element 11a by means of the pressure of the tap water and is directly discharged into the first waste water direct discharge pipeline Q1, the replacement of water in the first reverse osmosis filter element 11a and the first waste water direct discharge pipeline Q1 is completed, the first reverse osmosis filter element 11a and the first flow limiting valve 14a are prevented from scaling, and the service life of the first reverse osmosis filter element 11a and the service life of 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 waste water return line for a long time, causes the incrustation scale deposit and influences life's problem.
Example fourteen: please refer to fig. 14. In the embodiment, on the basis of the thirteenth embodiment, a large-flux front-mounted filter element 17a is added at the front end of the booster pump 12, the type of the front-mounted filter element 17a can be PP in different forms, activated carbon in different forms, ultrafiltration, nanofiltration, composite filter elements made of the above materials and the like, the large-flux specification is adopted, the flow rate of front-mounted effluent is more than or equal to 8L/min, and kitchen water is not limited and is equal to tap water. 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 (the drinking water inlet 131 communicates with the drain 133): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; tap water is coarsely filtered by the preposed filter element 17a and then flows into the first reverse osmosis filter element 11a, and then is divided into a path of pure water and a path of waste water, the pure water is discharged by a drinking water faucet for drinking, the waste water flows back to the front of the booster pump 12 through the first flow limiting valve 14a and is mixed with the preposed 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 tap (the life water inlet 132 is communicated with the life water outlet 131 b): tap water enters the first reverse osmosis filter element 11a through the booster pump 12 (the pump is not started) and then flows out of the wastewater side of the first reverse osmosis filter element 11a in two ways, one way of the tap water is directly discharged through a tap water tap, and the other way of the tap water flows back to the booster pump 12 through the first flow limiting valve 14a (the flow is limited and small), is mixed with the tap water and then enters the first reverse osmosis filter element 11a again to flush the wastewater side of the first reverse osmosis filter element 11 a; namely, when a user opens the life faucet, tap water with lower ion concentration can replace the waste water with high ion concentration accumulated at the waste water side of the first reverse osmosis filter element 11a, and the problem of the first cup of water is effectively solved. Moreover, because the flow rate of tap water is large, when the tap water passes through the first reverse osmosis filter element 11a, pollutants such as water scale and organic matters deposited on the side surface of the wastewater of the first reverse osmosis filter element 11a can be washed away, the scaling risk of the first reverse osmosis filter element 11a is reduced, and the service life of the first reverse osmosis filter element 11a is prolonged; meanwhile, the process can flush the wastewater backflow waterway and the first flow limiting valve 14a, so that the risk of blockage of the first flow limiting valve 14a due to scaling is reduced, and the service life of the first reverse osmosis filter element 11a is further prolonged. When the tap is opened, the waste water generated and accumulated in the water making process can be discharged through the tap for domestic water, so that the waste water utilization is realized in a real sense.
Direct wastewater discharge procedure 1: when a user takes drinking water, because the waste water flows back, the TDS of the outlet water can be increased along with the increase of the 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 first reverse osmosis filter element 11a is discharged along with the first waste water direct discharging pipeline Q1, the initial level of the outlet water TDS can be recovered in a short time, and the influence on the flow rate 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 2 (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 first waste water outlet 113 after entering the first reverse osmosis filter element 11a by means of the pressure of the tap water and is directly discharged into the first waste water direct discharge pipeline Q1, the replacement of water in the first reverse osmosis filter element 11a and the first waste water direct discharge pipeline Q1 is completed, the first reverse osmosis filter element 11a and the first flow limiting valve 14a are prevented from scaling, and the service life of the first reverse osmosis filter element 11a and the service life of 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 waste water return line for a long time, causes the incrustation scale deposit and influences life's problem.
Example fifteen: please refer to fig. 15. In this embodiment, on the basis of the thirteenth 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 high-pressure switch 16, and the type of the post-filter 17b may be different forms of activated carbon. The second TDS probe 19b can be either behind the first reverse osmosis filter element 11a, behind the post filter element 17b, the high pressure switch 16, or the second one-way valve 15 b.
The user turns on the drinking water tap (drinking water inlet 131 communicates with outlet 133): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; tap water is divided into a path of pure water and a path of waste water after flowing into the first reverse osmosis filter element 11a, the pure water is discharged by a drinking water faucet for drinking after passing through the post-positioned filter element 17b, and the waste water is mixed with the tap water before flowing back to the booster pump 12 through the first flow limiting valve 14a and then enters the first reverse osmosis filter element 11a again for filtration, so that zero discharge of the waste water is realized.
The user turns on the life tap (the life water inlet 132 is communicated with the life water outlet 131 b): running water enters the first reverse osmosis filter element 11a through the booster pump 12 (the pump is not started), then flows out of the waste water side of the first reverse osmosis filter element 11a in two ways, one way of the running water is directly discharged through a running water faucet, the other way of the running water flows back to the booster pump 12 through the first flow limiting valve 14a (the flow is limited and small), and then enters the first reverse osmosis filter element 11a again to flush the waste water side of the first reverse osmosis filter element 11a after being mixed with the running water; namely, when a user opens the life faucet, tap water with lower ion concentration can replace the waste water with high ion concentration accumulated at the waste water side of the first reverse osmosis filter element 11a, and the problem of the first cup of water is effectively solved. Moreover, as the flow rate of tap water is large, when the tap water passes through the first reverse osmosis filter element 11a, pollutants such as scale and organic matters deposited on the side surface of the wastewater of the first reverse osmosis filter element 11a can be washed away, the scaling risk of the first reverse osmosis filter element 11a is reduced, and the service life of the first reverse osmosis filter element 11a is prolonged; meanwhile, the process can flush the wastewater 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 tap is opened, the waste water generated and accumulated in the water making process can be discharged through the tap for domestic water, so that the waste water utilization is realized in a real sense.
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 (the 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 row pipeline Q1 of first waste water, the play water TDS can resume initial level in the short time, and weak influence to the 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 2 (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 first waste water outlet 113 after entering the first reverse osmosis filter element 11a by means of the pressure of the tap water and is directly discharged into the first waste water direct discharge pipeline Q1, the replacement of water in the first reverse osmosis filter element 11a and the first waste water direct discharge pipeline Q1 is completed, the first reverse osmosis filter element 11a and the first flow limiting valve 14a are prevented from scaling, and the service life of the first reverse osmosis filter element 11a and the service life of 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 waste water return line for a long time, causes the incrustation scale deposit and influences life's problem.
Example sixteen: please refer to fig. 16. In the embodiment, on the basis of the thirteenth embodiment, a large-flux front filter element 17a is added at the front end of the booster pump 12, and a rear filter element 17b is added on a pure water outlet pipeline of the first reverse osmosis filter element 11a and in front of the second one-way valve 15b and the high-pressure switch 16; the types of the preposed filter element 17a can be PP with different forms, active carbon with different forms, ultrafiltration, nanofiltration, composite filter elements made of the materials and the like, all adopt large flux specifications, the preposed effluent flow is more than or equal to 8L/min, and the kitchen water is not limited and is equal to tap water; the kind of the post-filter 17b may be activated carbon of different forms. The 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 either behind the first reverse osmosis filter element 11a, behind the post filter element 17b, the high pressure switch 16, or the second one-way valve 15 b.
The user turns on the drinking water tap (drinking water inlet 131 communicates with outlet 133): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; tap water is coarsely filtered by the front filter element 17a and then flows into the first reverse osmosis filter element 11a, and then is divided into a path of pure water and a path of wastewater, the pure water is discharged by a drinking water faucet for drinking after passing through the rear filter element 17b, and the wastewater flows back to the front of the booster pump 12 through the first flow limiting valve 14a to be 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 tap (the life water inlet 132 is communicated with the life water outlet 131 b): running water enters the first reverse osmosis filter element 11a through the booster pump 12 (the pump is not started), then flows out of the waste water side of the first reverse osmosis filter element 11a in two ways, one way of the running water is directly discharged through a running water faucet, the other way of the running water flows back to the booster pump 12 through the first flow limiting valve 14a (the flow is limited and small), and then enters the first reverse osmosis filter element 11a again to flush the waste water side of the first reverse osmosis filter element 11a after being mixed with the running water; namely, when a user opens the life faucet, tap water with lower ion concentration can replace the waste water with high ion concentration accumulated at the waste water side of the first reverse osmosis filter element 11a, and the problem of the first cup of water is effectively solved. Moreover, as the flow rate of tap water is large, when the tap water passes through the first reverse osmosis filter element 11a, pollutants such as scale and organic matters deposited on the side surface of the wastewater of the first reverse osmosis filter element 11a can be washed away, the scaling risk of the first reverse osmosis filter element 11a is reduced, and the service life of the first reverse osmosis filter element 11a is prolonged; meanwhile, the process can flush the wastewater 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 tap is opened, the waste water generated and accumulated in the water making process can be discharged through the tap for domestic water, so that the waste water utilization is realized in a real sense.
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 (the 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 row pipeline Q1 of first waste water, the play water TDS can resume initial level in the short time, and weak influence to the 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 wastewater direct discharge program 2 (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 first waste water outlet 113 after entering the first reverse osmosis filter element 11a by means of the pressure of the tap water and is directly discharged into the first waste water direct discharge pipeline Q1, the replacement of water in the first reverse osmosis filter element 11a and the first waste water direct discharge pipeline Q1 is completed, the first reverse osmosis filter element 11a and the first flow limiting valve 14a are prevented from scaling, and the service life of the first reverse osmosis filter element 11a and the service life of 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 waste water return line for a long time, causes the incrustation scale deposit and influences life's problem.
Example seventeen: please refer to fig. 17. This embodiment adds a second reverse osmosis cartridge 11b to the thirteenth embodiment. The waterway system with the double-TDS probe further comprises a second reverse osmosis filter element 11b, the second reverse osmosis filter element 11b is arranged on a flow path between the first waste water port 113 and the first flow limiting valve 14a, the second reverse osmosis filter element 11b is provided with a second water inlet 114, a second water outlet 115 and a second waste water port 116, the second water inlet 114 is communicated with the first waste water port 113, the second waste water port 116 is communicated with the water inlet end of the first flow limiting valve 14a, and the second water outlet 115 is communicated with the flow path between the first water outlet 112 and the second one-way valve 15 b.
The user turns on the drinking water tap (drinking water inlet 131 communicates with outlet 133): the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; after tap water flows into the first reverse osmosis filter element 11a, pure water and waste water are divided into one path, the pure water flows to the second one-way valve 15b, the waste water flows into the second reverse osmosis filter element 11b and is subjected to secondary filtration, the pure water flows to the second one-way valve 15b and is converged with a water path from the first water outlet 112, the pure water is discharged through a drinking water faucet for drinking, the waste water is mixed with the tap water before flowing back to the booster pump 12 through the first flow limiting valve 14a and enters the first reverse osmosis filter element 11a again for secondary filtration, and zero discharge of the waste water is realized.
The user turns on the life tap (the life water inlet 132 communicates with the drain 133): tap water enters the first reverse osmosis filter element 11a through the booster pump 12 (the pump is not started) and then flows out of the wastewater side of the first reverse osmosis filter element 11a, enters the second reverse osmosis filter element 11b and then flows out of the wastewater side of the second reverse osmosis filter element 11b in two ways, one way of the tap water is directly discharged through a domestic faucet, the other way of the tap water flows back to the booster pump 12 through the first flow limiting valve 14a (with flow limitation and small flow), and then the tap water is mixed with the tap water and then enters the two reverse osmosis filter elements again to flush the wastewater sides of the two reverse osmosis filter elements. Namely, when a user opens the domestic faucet, tap water with lower ion concentration can replace waste water with high ion concentration accumulated at the waste water side of the two reverse osmosis filter elements, and the problem of the first cup of water is effectively solved. And because the domestic water flow is large, when passing through the two reverse osmosis filter elements, 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.
Direct wastewater discharge procedure 1: when a user takes drinking water, because of backflow of waste water, the TDS (total dissolved solids) of the outlet water can be increased along with the increase of water taking time, and 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 in time), the booster pump 12 keeps starting, namely, a normal water making state is kept, the first switch valve 18a is opened, waste water generated by the two reverse osmosis filter elements is discharged along with the first waste water direct discharging pipeline Q1, 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 2 (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 is discharged from the second wastewater outlet 116 after sequentially entering the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b depending on the pressure of tap water, and is directly discharged into the first wastewater direct discharge pipeline Q1, so that the replacement of water in the two reverse osmosis filter elements and the first wastewater direct discharge pipeline Q1 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 for a long time in two reverse osmosis filter cores and waste water return line, causes the incrustation scale deposit and influences life's problem.
Example eighteen: please refer to fig. 18. In the embodiment, on the basis of the fifth embodiment, a large-flux front-mounted filter element 17a is added at the front end of the booster pump 12, the type of the front-mounted filter element 17a can be PP in different forms, activated carbon in different forms, ultrafiltration, nanofiltration, composite filter elements made of the materials and the like, the large-flux specification is adopted, the flow rate of front-mounted effluent is more than or equal to 8L/min, and kitchen water is not limited and is equal to tap water. 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: the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; tap water flows into the first reverse osmosis filter element 11a after being roughly filtered by the front filter element 17a, and then is divided into one path of pure water and one path of wastewater, the pure water flows to the second one-way valve 15b, the wastewater flows into the second reverse osmosis filter element 11b and is divided into one path of pure water and one path of wastewater after being secondarily filtered, the pure water flows to the second one-way valve 15b and is converged with a water path from the first water outlet 112, the pure water is discharged through the drinking water faucet for drinking, the wastewater flows back to the booster pump 12 through the first flow limiting valve 14a and then is mixed with the front water to enter the first reverse osmosis filter element 11a again for filtering, and zero discharge of the wastewater is realized.
The user turns on the life tap (the life water inlet 132 communicates with the drain 133): tap water enters the first reverse osmosis filter element 11a through the booster pump 12 (the pump is not started) and then flows out of the wastewater side of the first reverse osmosis filter element 11a, enters the second reverse osmosis filter element 11b and then flows out of the wastewater side of the second reverse osmosis filter element 11b in two ways, one way of the tap water is directly discharged through a domestic faucet, the other way of the tap water flows back to the booster pump 12 through the first flow limiting valve 14a (with flow limitation and small flow), and then the tap water is mixed with the tap water and then enters the two reverse osmosis filter elements again to flush the wastewater sides of the two reverse osmosis filter elements. Namely, when a user opens the domestic faucet, tap water with lower ion concentration can replace waste water with high ion concentration accumulated at the waste water side of the two reverse osmosis filter elements, and the problem of the first cup of water is effectively solved. And because the domestic water flow is larger, when passing through the two reverse osmosis filter elements, pollutants such as scale, organic matters and the like 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, so that 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 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 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 row pipeline Q1 of first 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 2 (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 is discharged from the second wastewater outlet 116 after sequentially entering the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b depending on the pressure of tap water, and is directly discharged into the first wastewater direct discharge pipeline Q1, so that the replacement of water in the two reverse osmosis filter elements and the first wastewater direct discharge pipeline Q1 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 for a long time in two reverse osmosis filter cores and waste water return line, causes the incrustation scale deposit and influences life's problem.
Example nineteenth: please refer to fig. 19. In this embodiment, on the basis of the seventeenth embodiment, a post-filter element 17b is added to the pure water outlet pipes of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, before the second check valve 15b and the high pressure switch 16, and the type of the post-filter element 17b may be activated carbon with different forms. The second TDS probe 19b can be either behind the first reverse osmosis filter element 11a, behind the post filter element 17b, the high pressure switch 16, or the second one-way valve 15 b.
The user opens the drinking water tap: the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; tap water is divided into one path of pure water and one path of wastewater after flowing into the first reverse osmosis filter element 11a, the pure water flows to the second one-way valve 15b, the wastewater flows into the second reverse osmosis filter element 11b and is divided into one path of pure water and one path of wastewater after secondary filtration, the pure water flows to the second one-way valve 15b and is converged with a water path from the first water outlet 112, the pure water is discharged by a drinking water faucet for drinking after passing through the rear filter element 17b, the wastewater is mixed with the tap water before flowing back to the booster pump 12 through the first flow limiting valve 14a and enters the first reverse osmosis filter element 11a again for secondary filtration, and zero discharge of the wastewater is realized.
The user opens the life faucet (the life water inlet 132 communicates with the drain 133): tap water enters the first reverse osmosis filter element 11a through the booster pump 12 (the pump is not started) and then flows out of the wastewater side of the first reverse osmosis filter element 11a, enters the second reverse osmosis filter element 11b and then flows out of the wastewater side of the second reverse osmosis filter element 11b in two ways, one way of the tap water is directly discharged through a domestic faucet, the other way of the tap water flows back to the booster pump 12 through the first flow limiting valve 14a (with flow limitation and small flow), and then the tap water is mixed with the tap water and then enters the two reverse osmosis filter elements again to flush the wastewater sides of the two reverse osmosis filter elements. Namely, when a user opens the domestic faucet, tap water with lower ion concentration can replace waste water with high ion concentration accumulated at the waste water side of the two reverse osmosis filter elements, and the problem of the first cup of water is effectively solved. And because the domestic water flow is large, when passing through the two reverse osmosis filter elements, 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.
Direct wastewater discharge 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 row pipeline Q1 of first 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 2 (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 is discharged from the second wastewater outlet 116 after sequentially entering the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b depending on the pressure of tap water, and is directly discharged into the first wastewater direct discharge pipeline Q1, so that the replacement of water in the two reverse osmosis filter elements and the first wastewater direct discharge pipeline Q1 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 for a long time in two reverse osmosis filter cores and waste water return line, causes the incrustation scale deposit and influences life's problem.
Example twenty: please refer to fig. 20. In the embodiment, on the basis of seventeen, a large-flux front filter element 17a is added at the front end of the booster pump 12, and a rear filter element 17b is added on a pure water outlet pipeline of the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b and in front of the second one-way valve 15b and the high-pressure switch 16; the types of the preposed filter element 17a can be PP with different forms, active carbon with different forms, ultrafiltration, nanofiltration, composite filter elements made of the materials and the like, all adopt large flux specifications, the preposed effluent flow is more than or equal to 8L/min, and the kitchen water is not limited and is equal to tap water; the kind of the post-filter 17b may be activated carbon of different forms. The 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 is arranged behind the first reverse osmosis filter element 11a and in front of or behind the post-filter element 17b, the high-voltage switch 16 or the second one-way valve 15 b.
The user opens the drinking water tap: the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; tap water is roughly filtered by the preposed filter element 17a and then flows into the first reverse osmosis filter element 11a, and then is divided into one path of pure water and one path of wastewater, the pure water flows to the second one-way valve 15b, the wastewater flows into the second reverse osmosis filter element 11b and is secondarily filtered, the pure water flows to the second one-way valve 15b and is converged with a water path from the first water outlet 112, the pure water is discharged by a drinking water faucet for drinking after passing through the postposition filter element 17b, the wastewater flows back to the booster pump 12 through the first flow limiting valve 14a and then is mixed with preposed effluent to enter the first reverse osmosis filter element 11a again for secondary filtration, and zero discharge of the wastewater is realized.
The user turns on the life tap (the life water inlet 132 communicates with the drain 133): tap water enters the first reverse osmosis filter element 11a through the booster pump 12 (the pump is not started) and then flows out of the wastewater side of the first reverse osmosis filter element 11a, enters the second reverse osmosis filter element 11b and then flows out of the wastewater side of the second reverse osmosis filter element 11b in two ways, one way of the tap water is directly discharged through a domestic faucet, the other way of the tap water flows back to the booster pump 12 through the first flow limiting valve 14a (with flow limitation and small flow), and then the tap water is mixed with the tap water and then enters the two reverse osmosis filter elements again to flush the wastewater sides of the two reverse osmosis filter elements. Namely, when a user opens the domestic faucet, tap water with lower ion concentration can replace waste water with high ion concentration accumulated at the waste water side of the two reverse osmosis filter elements, and the problem of the first cup of water is effectively solved. And because the domestic water flow is larger, when passing through the two reverse osmosis filter elements, pollutants such as scale, organic matters and the like 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 row pipeline Q1 of first 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 2 (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 is discharged from the second wastewater outlet 116 after sequentially entering the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b depending on the pressure of tap water, and is directly discharged into the first wastewater direct discharge pipeline Q1, so that the replacement of water in the two reverse osmosis filter elements and the first wastewater direct discharge pipeline Q1 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 for a long time in two reverse osmosis filter cores and waste water return line, causes the incrustation scale deposit and influences life's problem.
Example twenty one: please refer to fig. 21. In this embodiment, a second reverse osmosis filter element 11b is added to the thirteenth embodiment, in parallel with the first reverse osmosis filter element 11 a. The second reverse osmosis filter element 11b is provided with a second water inlet 114, a second water outlet 115 and a second waste water outlet 116, the second water inlet 114 of the second reverse osmosis filter element 11b is communicated with the outlet of the booster pump 12, the second waste water outlet 116 of the second reverse osmosis filter element 11b is communicated with one end of a second waste water direct discharge pipeline Q2, a second flow limiting valve 14b and a second switch valve 18b are arranged on the second waste water direct discharge pipeline Q2, and the second flow limiting valve 14b has a flow limiting state and a full open state; the second switching valve 18b is located downstream of the second flow restriction valve 14b, a flow path between the second switching valve 18b and the second flow restriction valve 14b communicates with the pump inlet 121 through a second branch P2, and a third check valve 15c flowing toward the pump inlet port 121 of the booster pump 12 is provided in the second branch P2. The electronic control unit is used for closing the second switch valve 18b when sensing a signal that the high-voltage switch 16 is triggered; and when the salt rejection rates detected by the first TDS sensing probe 19a and the second TDS sensing probe 19b are lower than a preset value, the second on-off valve 18b is opened.
The user opens the drinking water tap: the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; running water respectively enters the two reverse osmosis filter elements, is converged after being filtered and is discharged from a drinking faucet for drinking; the wastewater flows back to the booster pump 12 through the two flow limiting valves, is mixed with tap water and then enters the two reverse osmosis filter elements again for secondary filtration, and zero discharge of the wastewater is realized.
The user turns on the life faucet: running water respectively enters the two reverse osmosis filter elements after passing through the booster pump 12 (the pump is not started) and then respectively flows out of the two reverse osmosis filter elements from the waste water sides in two paths, one path is converged with a large flow rate and then directly discharged through a domestic water faucet, and the other path is returned to the booster pump 12 through the two flow limiting valves (the flow is limited and the flow is small), mixed with the running water and then enters the two reverse osmosis filter elements again to flush the waste water sides; namely, when a user opens the domestic faucet, tap water with lower ion concentration can replace waste water with high ion concentration accumulated at the waste water side of the two reverse osmosis filter elements, and the problem of the first cup of water is effectively solved. And because the domestic water flow is large, when passing through the two reverse osmosis filter elements, 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; simultaneously, the process can flush two waste water direct discharge pipelines and two flow limiting valves, the risk of blockage of the two flow limiting valves due to scaling is reduced, and the service lives of the two reverse osmosis filter elements are further prolonged. When the domestic 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, 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%), first ooff valve 18a and second ooff valve 18b open, the waste water that two reverse osmosis filter core produced is discharged along with two waste water direct vent pipelines, can resume initial level in the 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 from the wastewater side after entering the two reverse osmosis filter elements by means of the pressure of tap water and is directly discharged into the two wastewater direct discharge pipelines, the replacement of water in the two reverse osmosis filter elements and the two wastewater backflow direct discharge pipelines is completed, the two reverse osmosis filter elements and the two flow limiting valves 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 two waste water backward flows straight-line pipelines, 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 for a long time in two reverse osmosis filter cores and two waste water straight-line pipelines, causes the incrustation scale deposit and influences life's problem.
Example twenty two: please refer to fig. 22. In this embodiment, on the basis of twenty-one, a large-flux pre-filter 17a is added at the front end of the booster pump 12; the front filter element 17a can be PP with different forms, active carbon with different forms, ultrafiltration, nanofiltration, composite filter elements made of the materials and the like, all adopt large flux specifications, the front water outlet flow is more than or equal to 8L/min, and the kitchen water is not limited and is equal to tap water. 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: the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; tap water is coarsely filtered by the preposed filter element 17a and then 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; and the wastewater flows back to the front of the booster pump 12 through the first flow limiting valve 14a and the second flow limiting valve 14b and is mixed with the water discharged from the large-flux preposed filter element 17a, and then enters the two reverse osmosis filter elements for secondary filtration, so that zero discharge of the wastewater is realized.
The user turns on the life faucet: running water respectively enters the two reverse osmosis filter elements after passing through the booster pump 12 (the pump is not started) and then respectively flows out of the two reverse osmosis filter elements from the waste water sides in two paths, one path of the running water is converged with a large flow rate and then is directly discharged through a domestic faucet, and the other path of the running water is returned to the booster pump 12 through the two flow limiting valves (the flow is limited and the flow is small) and then is mixed with the running water, and then the running water enters the two reverse osmosis filter elements again to flush the waste water sides; namely, when a user opens the domestic faucet, tap water with lower ion concentration can replace waste water with high ion concentration accumulated at the waste water side of the two reverse osmosis filter elements, and the problem of the first cup of water is effectively solved. And because the domestic water flow is large, when passing through the two reverse osmosis filter elements, 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; simultaneously, the process can flush two waste water direct discharge pipelines and two flow limiting valves, the risk of blockage of the two flow limiting valves due to scaling is reduced, and the service lives of the two reverse osmosis filter elements are further prolonged. When the domestic 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, 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, keep normal system water state promptly, first ooff valve 18a opens, the waste water that two reverse osmosis filter core produced is discharged along with two straight row pipelines of waste water, can resume initial level in the play water TDS short time, and 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, the second flow limiting valve 14b, the first switch valve 18a and the second switch valve 18b are opened, tap water flows out from the wastewater side after entering the two reverse osmosis filter elements by means of the pressure of tap water and is directly discharged into the two wastewater direct discharge pipelines, the replacement of water in the two reverse osmosis filter elements and the two wastewater backflow direct discharge pipelines is completed, the two reverse osmosis filter elements and the two flow limiting valves 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 two waste water backward flow straight-line pipelines, and this procedure mainly used avoids having no use domestic 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 two waste water straight-line pipelines for a long time, causes the incrustation scale deposit and influences life's problem.
Example twenty two: please refer to fig. 22. In this embodiment, on the basis of seventeenth embodiment, a post-filter element 17b is added on a pure water outlet converging pipeline of a first reverse osmosis filter element 11a and a second reverse osmosis filter element 11b, in front of a second one-way valve 15b and a high-pressure switch 16; the kind of the post-filter 17b may be activated carbon of different forms. The second TDS probe 19b can be either behind the first reverse osmosis filter element 11a, behind the post filter element 17b, the high pressure switch 16, or the second one-way valve 15 b.
The user opens the drinking water tap: the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; tap water respectively enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, and is filtered, then the pure water pipelines of the two reverse osmosis filter elements are converged, and the filtered pure water is discharged by the post filter element 17b through a drinking water tap 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 opens the life faucet (the life water inlet 132 communicates with the drain 133): tap water enters the first reverse osmosis filter element 11a through the booster pump 12 (the pump is not started) and then flows out of the wastewater side of the first reverse osmosis filter element 11a, enters the second reverse osmosis filter element 11b and then flows out of the wastewater side of the second reverse osmosis filter element 11b in two ways, one way of the tap water is directly discharged through a domestic faucet, the other way of the tap water flows back to the booster pump 12 through the first flow limiting valve 14a (with flow limitation and small flow), and then the tap water is mixed with the tap water and then enters the two reverse osmosis filter elements again to flush the wastewater sides of the two reverse osmosis filter elements. Namely, when a user opens the domestic faucet, tap water with lower ion concentration can replace waste water with high ion concentration accumulated at the waste water side of the two reverse osmosis filter elements, and the problem of the first cup of water is effectively solved. And because the domestic water flow is large, when passing through the two reverse osmosis filter elements, 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 two flow limiting valves, 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, 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, keep normal system water state promptly, first ooff valve 18a opens, the waste water that two reverse osmosis filter core produced is discharged along with two straight row pipelines of waste water, can resume initial level in the play water TDS short time, and 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, the second flow limiting valve 14b, the first switch valve 18a and the second switch valve 18b are opened, tap water flows out from the wastewater side after entering the two reverse osmosis filter elements by means of the pressure of tap water and is directly discharged into the two wastewater direct discharge pipelines, the replacement of water in the two reverse osmosis filter elements and the two wastewater backflow direct discharge pipelines is completed, the two reverse osmosis filter elements and the two flow limiting valves 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 two waste water backward flows straight-line pipelines, 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 for a long time in two reverse osmosis filter cores and two waste water straight-line pipelines, causes the incrustation scale deposit and influences life's problem.
Example twenty-four: please refer to fig. 24. In the embodiment, on the basis of seventeen, a large-flux front filter element 17a is added at the front end of the booster pump 12, and a rear filter element 17b is added on a pure water outlet converging pipeline 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 high-pressure switch 16; the types of the preposed filter element 17a can be PP with different forms, active carbon with different forms, ultrafiltration, nanofiltration, composite filter elements made of the materials and the like, all adopt large flux specifications, the preposed effluent flow is more than or equal to 8L/min, and the kitchen water is not limited and is equal to tap water; the kind of the post-filter 17b may be activated carbon of different forms. The 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 either behind the first reverse osmosis filter element 11a, behind the post filter element 17b, the high pressure switch 16, or the second one-way valve 15 b.
The user opens the drinking water tap: the high-voltage switch 16 detects the pressure change, starts the booster pump 12 and starts water production; tap water is coarsely filtered by the preposed filter element 17a and then respectively enters the first reverse osmosis filter element 11a and the second reverse osmosis filter element 11b, and after being filtered, pure water pipelines of the two reverse osmosis filter elements are converged, and after passing through the postposition filter element 17b, the tap water is discharged by a drinking water tap for drinking; and the wastewater flows back to the front of the booster pump 12 through the first flow limiting valve 14a and the second flow limiting valve 14b and is mixed with the water discharged from the large-flux preposed filter element 17a, and then enters the two reverse osmosis filter elements for secondary filtration, so that zero discharge of the wastewater is realized.
The user turns on the life tap (the life water inlet 132 communicates with the drain 133): tap water enters the first reverse osmosis filter element 11a through the booster pump 12 (the pump is not started) and then flows out of the waste water side of the first reverse osmosis filter element 11a, enters the second reverse osmosis filter element 11b and then flows out of the waste water side of the second reverse osmosis filter element 11b in two paths, one path of the tap water directly flows out in a large flow rate through a domestic faucet, and the other path of the tap water flows back to the booster pump 12 through the first flow limiting valve 14a (the flow is limited, the flow is small) and then is mixed with the tap water and then enters the two reverse osmosis filter elements again to flush the waste water sides of the two reverse osmosis filter elements. Namely, when a user opens the domestic faucet, tap water with lower ion concentration can replace waste water with high ion concentration accumulated at the waste water side of the two reverse osmosis filter elements, and the problem of the first cup of water is effectively solved. And because the domestic water flow is large, when passing through the two reverse osmosis filter elements, 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 two flow limiting valves, 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, 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 water making state promptly, first ooff valve 18a opens, the waste water that two reverse osmosis filter cores produced is discharged along with two straight row pipelines 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, the second flow limiting valve 14b, the first switch valve 18a and the second switch valve 18b are opened, tap water flows out from the wastewater side after entering the two reverse osmosis filter elements by means of the pressure of tap water and is directly discharged into the two wastewater direct discharge pipelines, the replacement of water in the two reverse osmosis filter elements and the two wastewater backflow direct discharge pipelines is completed, the two reverse osmosis filter elements and the two flow limiting valves 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 two waste water backward flow straight-line pipelines, and this procedure mainly used avoids having no use domestic 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 two waste water straight-line pipelines 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 is only the optional embodiment of the present invention, and not the scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims (15)

1. The utility model provides a waterway system with two TDS probes, includes booster pump, first reverse osmosis filter core, high-pressure switch and play water subassembly that links to each other in order, it has outlet port, drinking water inlet and life water inlet to go out the water subassembly, the drinking water inlet with the high-pressure switch intercommunication, the waste water mouth intercommunication of life water inlet and first reverse osmosis filter core, its characterized in that, waterway system with two TDS probes still includes:
one end of the first wastewater direct discharge pipeline is communicated with a wastewater port of the first reverse osmosis filter element, a first flow limiting valve and a first switch valve are sequentially arranged on the first wastewater direct discharge pipeline along the upstream and downstream directions, 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 flowing towards the water inlet of the booster pump is arranged on the first branch pipeline;
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 drinking water inlet;
the electric control unit is connected with the booster pump, the high-voltage switch, the first flow limiting valve, the first switch valve, the first TDS probe and the second TDS probe;
the electronic control unit is used for turning on the booster pump and turning off the first switch valve when sensing a signal that the high-voltage switch is triggered; and when the salt rejection rate detected by the first TDS probe and the second TDS probe is lower than a preset salt rejection rate, the first switch valve is opened.
2. The waterway system of claim 1, wherein the electronic control unit is further configured to control the first switch valve to open when the TDS value sensed by the second TDS probe is greater than a predetermined TDS value and the triggered signal is terminated.
3. The waterway system of claim 2, wherein the first switch valve opens when the high pressure switch is not activated for more than a predetermined time.
4. The waterway system of claim 3, further comprising a second one-way valve disposed upstream of the high-voltage switch and between the second TDS probe and the high-voltage switch.
5. The waterway system of claim 4, the outlet assembly comprising a potable water outlet assembly having the potable water inlet and a domestic water outlet assembly having the domestic water inlet, the outlet assembly comprising a potable water outlet disposed at the potable water assembly and a domestic water outlet disposed at the domestic water assembly, which are independent of each other.
6. The waterway system of claim 4, 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.
7. The waterway system of claim 6, wherein the outlet assembly comprises a potable water outlet assembly having the potable water inlet and a domestic water outlet assembly having the domestic water inlet, the outlet assembly comprising a potable water outlet disposed at the potable water assembly and a domestic water outlet disposed at the domestic water assembly, which are independent of each other.
8. The waterway system with the double TDS probes as recited in claim 4, 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 third one-way valve which flows towards the pump inlet is arranged on the second branch;
the electronic control unit is used for closing the second switch valve when the high-voltage switch is sensed to be triggered; and when the salt rejection that acquires first TDS probe and second TDS probe detect is less than preset the salt rejection, open the second ooff valve.
9. The waterway system of claim 8, wherein the electronic control unit is further configured to control the second switch valve to open when the TDS value sensed by the second TDS probe is greater than the predetermined TDS value and the triggered signal is terminated.
10. The waterway system of claim 9, wherein the second switch valve opens when the high pressure switch is not activated for more than a predetermined time.
11. The waterway system of claim 9, the outlet assembly comprising a potable water outlet assembly having the potable water inlet and a domestic water outlet assembly having the domestic water inlet, the outlet assembly comprising a potable water outlet disposed at the potable water assembly and a domestic water outlet disposed at the domestic water assembly, the outlet comprising a potable water outlet disposed at the potable water assembly and a domestic water outlet disposed at the domestic water assembly.
12. The waterway system with dual TDS probe of any of claims 1-11, further comprising a pre-filter disposed upstream of the booster pump, the outlet port of the first one-way valve being in communication with the pump inlet.
13. The waterway system with dual TDS probes of claim 12, wherein a fill valve is positioned upstream of the pre-filter element or between the pre-filter element and the junction of the first branch and the flow path at which the pump inlet is positioned.
14. The waterway system of claim 12, wherein the pre-filter is a PP filter, an activated carbon filter, an ultrafiltration filter, or a nanofiltration filter; first reverse osmosis filter core with be provided with rearmounted filter core between the first TDS probe, rearmounted filter core is the active carbon filter core.
15. The waterway system of any one of claims 4-11, further comprising a post-filter disposed in the flow path between the first reverse osmosis filter and the second one-way valve.
CN202123430820.9U 2021-12-29 2021-12-29 Waterway system with double TDS probes Active CN217323462U (en)

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