CN211471013U - Water purifier capable of adjusting TDS value - Google Patents
Water purifier capable of adjusting TDS value Download PDFInfo
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- CN211471013U CN211471013U CN202020034613.8U CN202020034613U CN211471013U CN 211471013 U CN211471013 U CN 211471013U CN 202020034613 U CN202020034613 U CN 202020034613U CN 211471013 U CN211471013 U CN 211471013U
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Abstract
The utility model discloses a water purifier capable of adjusting TDS value, which comprises a water inlet, a pure water port, a straight-through water port, a water outlet, an ultrafiltration UF filter element component, a booster pump, a high-voltage switch, a front carbon rod filter element, an RO membrane filter element and a rear carbon rod filter element; the water purifier is through the level four filtration of ultrafiltration UF filter element group spare, leading carbon-point filter core, RO membrane filter core and rearmounted carbon-point filter core, can play fine purification effect to harmful substance such as surplus chlorine in the running water, bacterium, virus, alga to can also adjust the taste of pure water through taste adjusting part.
Description
Technical Field
The utility model relates to a purifier equipment field especially relates to a can adjust water purifier of TDS value.
Background
In the middle of people's life, the purifier has gradually become the electrical apparatus articles for daily use that every family is essential, along with people's attention to health, also the requirement to drinking water is higher and higher, and the thing such as the city running water residual chlorine of very big part, bacterium, virus, alga all can exceed standard at present.
Many families begin to use water purifying devices, such as a water purifying machine and an ultrafiltration machine, but the TDS value (namely the total amount of soluble solids in water) of water purified by a common water purifying device is higher, and the TDS value influences the taste of the purified water when drinking; the TDS value is higher, which causes the taste of the purified water to be poor, and the purified water can not reach the water quality standard of tea making, coffee making and milk powder making. In addition, the water purifying equipment can not adjust the TDS value of the purified water according to the requirements of users on various occasions such as tea making, coffee making, milk powder making and the like, so that the taste of the purified water is more suitable for the requirements of the users on different occasions.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can adjust water purifier of TDS value to solve above-mentioned problem.
To achieve the purpose, the utility model adopts the following technical proposal:
a water purifier capable of adjusting TDS value comprises a water inlet, a purified water port, a through water port, a water outlet, an ultrafiltration UF filter core assembly, a booster pump, a high-voltage switch, a front carbon rod filter core, an RO membrane filter core, a rear carbon rod filter core and a taste adjusting assembly;
the ultrafiltration UF filter core component is provided with a tap water inlet, a straight-through water outlet and a primary filtration outlet;
the booster pump is provided with a booster pump water inlet and a booster pump water outlet;
the preposed carbon rod filter element is provided with a secondary filtering inlet and a secondary filtering outlet;
the RO membrane filter element is provided with a third-stage filtering inlet, a third-stage filtering outlet and a sewage outlet;
the rear carbon rod filter element is provided with a four-stage filtering inlet and a four-stage filtering outlet;
the tap water inlet is connected with the water inlet, and the straight-through water outlet is connected with the straight-through water port; the primary filtering outlet is connected with a water inlet of the booster pump, and a water outlet of the booster pump is connected with the secondary filtering inlet; the secondary filtering outlet is connected with the tertiary filtering inlet, the tertiary filtering outlet is connected with the quaternary filtering inlet, and the sewage outlet is connected with the water outlet; the high-voltage switch is arranged between the third-stage filtering outlet and the fourth-stage filtering inlet and is electrically connected with the booster pump, and the high-voltage switch is used for controlling the booster pump to be switched on or switched off; the four-stage filtering outlet is connected with the pure water port;
the taste adjusting component comprises an adjusting branch pipe, an adjusting valve and a TDS detector; one end of the regulating branch pipe is connected with the secondary filtering outlet, and the other end of the regulating branch pipe is connected with the quaternary filtering outlet;
the regulating valve is arranged on the regulating branch pipe and is electrically connected with the TDS detector; the TDS detector sets up adjust between the other end of branch pipe and the pure water mouth for the TDS value of monitoring water and control opening or closing of governing valve.
In the water purifier capable of adjusting the TDS value, the ultrafiltration UF filter core component comprises a first ultrafiltration UF filter core and a second ultrafiltration UF filter core, and the first ultrafiltration UF filter core and the second ultrafiltration UF filter core are arranged in parallel;
the first ultrafiltration UF filter element is provided with a first tap water inlet, a first straight water outlet and a first primary filtration outlet, and the second ultrafiltration UF filter element is provided with a second tap water inlet, a second straight water outlet and a second primary filtration outlet;
the tap water inlet is formed by the combination of a first tap water inlet and a second tap water inlet; the straight water outlet is formed by merging a first straight water outlet and a second straight water outlet; the primary filtering outlet is formed by the combination of the first primary filtering outlet and the second primary filtering outlet.
The water purifier capable of adjusting the TDS value further comprises an anti-backflow component, wherein the anti-backflow component comprises a first check valve, a second check valve and a third check valve;
the first check valve is arranged between one end of the adjusting branch pipe and the adjusting valve;
the second check valve is arranged between the four-stage filtering outlet and the pure water port;
the third check valve is arranged between the high-pressure switch and the four-stage filtering inlet.
In the water purifier, the water purifier also comprises a sewage discharge assembly, and the sewage discharge assembly comprises a water discharge branch and a water discharge valve; one end of the drainage branch is connected between the third-stage filtering outlet and the third check valve, and the other end of the drainage branch is connected between the sewage draining outlet and the water draining outlet; the drain valve sets up on the drainage branch, the drain valve is used for regularly draining away the water in the RO membrane filter core.
Among the water purifier of adjustable TDS value, the blowdown subassembly still includes the flushometer, the flushometer sets up between the other end of drainage branch and the drain, the flushometer is used for controlling the emission of the produced waste water of RO membrane filter core.
In the water purifier that can adjust the TDS value, be equipped with the water intaking valve between first filtration export and the booster pump water inlet, water intaking valve and high tension switch electric connection for control gets into the water yield of booster pump.
In the water purifier of adjustable TDS value, the power of booster pump is 300 gallons.
Has the advantages that: the water purifier that can adjust the TDS value passes through the level four filtration of ultrafiltration UF filter element group spare, leading carbon-point filter core, RO membrane filter core and rearmounted carbon-point filter core, can play fine purification effect to harmful substance such as residual chlorine, bacterium, virus, alga in the running water to can also adjust the taste of pure water through taste adjusting component.
The control system of the water purifier and the cleaning control method based on the control system of the water purifier can solve the problem of 'first cup water', can avoid the problem that an RO membrane on an RO membrane filter element deposits organic matters, colloid, microorganisms, bacteria, viruses and the like, and prolong the service time of the RO membrane filter element.
Drawings
The accompanying drawings are provided to further illustrate the present invention, but the content in the accompanying drawings does not constitute any limitation to the present invention.
Fig. 1 is a schematic structural diagram of one embodiment of the present invention.
Fig. 2 is a schematic diagram of an ultrafiltration UF cartridge assembly according to one embodiment of the present invention.
Fig. 3 is a schematic structural diagram of the mouth feel adjusting assembly, the backflow prevention assembly and the sewage draining assembly in one embodiment of the present invention.
Fig. 4 is a block diagram of a control system of a water purifier capable of adjusting TDS values according to the present invention.
Fig. 5 is a flowchart of a cleaning control method of the present invention based on a control system of a water purifier capable of adjusting a TDS value.
In the drawings: a water inlet a, a pure water inlet b, a straight water inlet c, a water outlet d, an ultrafiltration UF filter core assembly 01, a first ultrafiltration UF filter core 11, a second ultrafiltration UF filter core 12, a tap water inlet 13, a first tap water inlet 131, a second tap water inlet 132, a straight water outlet 14, a first straight water outlet 141, a second straight water outlet 142, a primary filtration outlet 15, a first primary filtration outlet 151, a second primary filtration outlet 152, a booster pump 02, a booster pump water inlet 21, a booster pump water outlet 22, a high-pressure switch 03, a pre-carbon rod filter core 04, a secondary filtration inlet 41, a secondary filtration outlet 42, an RO membrane filter core 05, a tertiary filtration inlet 51, a tertiary filtration outlet 52, a sewage outlet 53, a post-carbon rod filter core 06, a quaternary filtration inlet 61, a quaternary filtration outlet 62, a mouthfeel adjusting assembly 07, an adjusting branch pipe 71, an adjusting valve 72, a TDS detector 73, a reverse flow preventing assembly 08, The device comprises a first check valve 81, a second check valve 82, a third check valve 83, a pollution discharge assembly 09, a drainage branch 91, a drainage valve 92, a flushing valve 93 and a water inlet valve 10.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
A water purifier capable of adjusting TDS value comprises a water inlet a, a pure water outlet b, a straight water outlet c, a water outlet d, an ultrafiltration UF filter core assembly 01, a booster pump 02, a high-voltage switch 03, a front carbon rod filter element 04, an RO membrane filter element 05, a rear carbon rod filter element 06 and a taste adjusting assembly 07;
the ultrafiltration UF filter core component 01 is provided with a tap water inlet 13, a straight water outlet 14 and a primary filtration outlet 15;
a booster pump water inlet 21 and a booster pump water outlet 22 are arranged on the booster pump 02;
the front carbon rod filter element 04 is provided with a secondary filtering inlet 41 and a secondary filtering outlet 42;
the RO membrane filter element 05 is provided with a tertiary filtration inlet 51, a tertiary filtration outlet 52 and a sewage outlet 53;
the rear carbon rod filter element 06 is provided with a four-stage filtering inlet 61 and a four-stage filtering outlet 62;
the tap water inlet 13 is connected with the water inlet a, and the straight-through water outlet 14 is connected with the straight-through water inlet c; the primary filtering outlet 15 is connected with a booster pump water inlet 21, and the booster pump water outlet 22 is connected with a secondary filtering inlet 41; the secondary filtering outlet 42 is connected with a tertiary filtering inlet 51, the tertiary filtering outlet 52 is connected with a quaternary filtering inlet 61, and the sewage outlet 53 is connected with a water outlet d; the high-voltage switch 03 is arranged between the third-stage filtration outlet 52 and the fourth-stage filtration inlet 61 and is electrically connected with the booster pump 02, and the high-voltage switch 03 is used for controlling the booster pump 02 to be switched on or switched off; the four-stage filtering outlet 62 is connected with a pure water port b;
referring to fig. 1 and 3, specifically, the water purifier further includes a taste adjusting assembly 07, where the taste adjusting assembly 07 includes an adjusting branch pipe 71, an adjusting valve 72, and a TDS detector 73; one end of the regulating branch pipe 71 is connected with the secondary filtering outlet 42, and the other end is connected with the quaternary filtering outlet 62;
the regulating valve 72 is arranged on the regulating branch pipe 71 and is electrically connected with the TDS detector 73; the TDS detector sets up adjust between the other end of branch pipe 71 and the pure water mouth b for the TDS value of monitoring water and control opening or closing of governing valve 72.
The Total Dissolved Solids (TDS) in water, i.e., the total content of various soluble mineral salts in the water, which affect the taste of the purified water. The TDS value is not the lower better, and different TDS values can bring different tastes, and through RO membrane filter element filterable water, its TDS value is lower usually, and the drainage taste this moment is not the best, consequently need mix into partial second grade drainage again and come to adjust the TDS value to reach best taste.
TDS detector monitoring aquatic dissolubility solid total amount to through opening or closing of control governing valve 72, make partly second grade drainage get into between rearmounted carbon-point filter core 06 and the pure mouth of a river b through adjusting branch pipe 71, thereby make partly second grade drainage mix with the pure water, change dissolubility solid total amount in the pure water, finally realize the purpose of adjusting pure mouth of a river b sense. The threshold value of the TDS detector 73 for controlling the switch of the regulating valve 72 can be set according to the requirement of a user.
Specifically, the water purifier may generate purified water, straight-through water, and washing wastewater; the purified water is filtered by an ultrafiltration UF filter core, a front carbon rod filter core 04, an RO membrane filter core 05 and a rear carbon rod filter core 06 and is drinking water for four-stage filtration; the straight water is filtered by an ultrafiltration UF filter element, belonging to primary water filtration in four-stage filtration of pure water.
Because the pure water needs to carry out the pressure boost filtration through the booster pump, and the booster pump needs electric power to provide power, and the energy consumption when the user uses the not high water of filtration grade, like the occasion such as washing the lavatory, washing hand, washing dish and washing the dishes, can use the straight-through water to avoid using the pure water that passes through the level four filtration usefulness in a large number, can cause the waste of electric quantity.
The cleaning wastewater is generated when the RO membrane cartridge 05 (reverse osmosis membrane cartridge) is cleaned; after the RO membrane cartridge 05 completes the filtration, the surface of the RO membrane in the RO membrane cartridge 05 contains a large amount of salts, even organic matter, colloids, microorganisms, bacteria, viruses, and the like. These contaminants tend to deposit on the surface of the RO membrane and contaminate the RO membrane elements, which can reduce the performance of the RO membrane cartridge 05, such as reducing the flow rate of the produced water, reducing the salt rejection rate, and increasing the pressure differential between the feed water and the concentrate. Therefore, it is desirable to utilize off-stream flushing of the RO membrane element surface to prevent the deposition of these contaminants.
The water inlet a is connected with a tap water source and provides tap water for the water purifier; the purified water port b is used for discharging purified water, the straight-through water port c is used for discharging straight-through water, and the water outlet d is used for discharging cleaning wastewater.
When a user needs to use the direct water, the switch of the direct water can be turned on, and tap water enters the water purifier from the water inlet a; then enters the ultrafiltration UF filter core assembly 01 through a tap water inlet 13, and the ultrafiltration UF filter core assembly 01 filters tap water into straight water; the straight-through water flows from the straight-through water outlet 14 to the straight-through water port c, and the water purifier supplies the straight-through water to the user through the straight-through water port c.
When a user needs to use the purified water, the switch of the purified water can be turned on, and tap water enters the water purifier from the water inlet a; tap water enters the ultrafiltration UF filter core assembly 01 through the tap water inlet 13, and the ultrafiltration UF filter core assembly 01 filters the tap water into primary filtered water;
subsequently, the primary filtered water flows out from the primary filtering outlet 15 and enters the booster pump 02 through the booster pump water inlet 21, and the booster pump 02 pumps the primary filtered water out from the booster pump water outlet 22; the primary filtered water enters the front carbon rod filter element 04 through the secondary filtering inlet 41; the preposed carbon rod in the preposed carbon rod filter element 04 has an adsorption function, so that impurities in primary filtered water can be adsorbed, and the impurities entering the RO membrane filter element are reduced, so that the filtering burden of the RO membrane filter element is reduced, and meanwhile, the service life of the RO membrane can be prolonged; the pre-carbon rod filter element 04 filters the primary filtered water into secondary filtered water;
next, the second-stage filtered water flows out from the second-stage filtering outlet 42 due to the pressure generated by the booster pump 02, enters the RO membrane filter element 05 through the third-stage filtering inlet 51, and the RO membrane filter element 05 filters the second-stage filtered water into third-stage filtered water through the reverse osmosis principle;
finally, the third-stage filtered water flows out of the third-stage filtering outlet 52 and enters the rear carbon rod filter element 06 through the fourth-stage filtering inlet 61, and a rear carbon rod in the rear carbon rod filter element 06 can adsorb peculiar smell, so that the pure water is sweet in taste; the rear carbon rod filter element 06 filters the three-stage filtered water into purified water, and the purified water flows from the four-stage filtration outlet 62 to the purified water port b, and the water purifier provides the purified water for users through the purified water port b.
When cleaning RO membrane filter core 05, the second grade drainage gets into RO membrane filter core 05 from tertiary filtration entry 51, washes the inside RO membrane of RO membrane filter core 05, washes the washing waste water that the RO membrane produced and flows out from drain 53, follows through outlet d the water purifier is discharged.
The high-pressure switch 03 has a pressure threshold value, and can automatically control the booster pump 02 to be turned on or off according to the water pressure; when the pure water port b is closed, the booster pump 02 can continue to work, so that the water pressure between the RO membrane filter element 05 and the rear carbon rod filter element 06 is gradually increased, and when the pressure is greater than the pressure threshold value of the high-pressure switch 03, the high-pressure switch 03 is closed, so that the booster pump 02 stops working, and the phenomenon that a water path between the RO membrane filter element 05 and the rear carbon rod filter element 06 is broken due to overlarge pressure is avoided; when pure mouth of a river b was opened, the pure water flowed from pure mouth of a river b, and water route pressure diminishes, and when the water pressure between RO membrane filter core 05 and the rearmounted carbon-point filter core 06 was less than the pressure threshold value, high-pressure switch 03 opened, starts booster pump 02. When the booster pump 02 works, the booster pump 02 filters the primary filtered water sequentially through the front carbon rod filter element 04, the RO membrane filter element 05 and the rear carbon rod filter element 06 to supplement purified water, so that the purified water can stably flow out from the purified water port b.
Referring to fig. 2, specifically, the ultrafiltration UF cartridge assembly 01 includes a first ultrafiltration UF cartridge 11 and a second ultrafiltration UF cartridge 12, where the first ultrafiltration UF cartridge 11 and the second ultrafiltration UF cartridge 12 are arranged in parallel;
the first ultrafiltration UF filter element 11 is provided with a first tap water inlet 131, a first straight water outlet 141 and a first primary filtration outlet 151, and the second ultrafiltration UF filter element 12 is provided with a second tap water inlet 132, a second straight water outlet 142 and a second primary filtration outlet 152;
the tap water inlet 13 is formed by combining a first tap water inlet 131 and a second tap water inlet 132; the straight-through water outlet 14 is formed by combining a first straight-through water outlet 141 and a second straight-through water outlet 142; the primary filtering outlet 15 is formed by merging the first primary filtering outlet 151 and the second primary filtering outlet 152.
When the switches of the direct water and the purified water are simultaneously turned on, the direct water provided by the single ultrafiltration UF filter core cannot simultaneously meet the requirements of the use of the direct water and the primary water filtration required by the purified water. The first UF filter 11 and the second UF filter 12 are disposed in parallel, and when the on/off of the straight-through water and the purified water are simultaneously turned on, enough straight-through water is ensured to provide the primary filtering water required for the filtration of the purified water and the simultaneous use of the straight-through water.
Preferably, the water purifier capable of adjusting the TDS value further comprises a reverse flow prevention assembly 08, wherein the reverse flow prevention assembly 08 comprises a first check valve 81, a second check valve 82 and a third check valve 83;
the first check valve 81 is arranged between one end of the regulating branch pipe 71 and the regulating valve 72;
the second check valve 82 is arranged between the four-stage filtering outlet 62 and the pure water port b;
the third check valve 83 is arranged between the high-pressure switch 03 and the fourth-stage filtration inlet 61.
The first check valve 81 enables the secondary filtered water to pass through only in one direction, and enables the secondary filtered water to be mixed with the purified water, so that the secondary filtered water is prevented from flowing back to the front carbon rod filter element 04 after being mixed with the purified water, and the water mixed with the secondary filtered water and the purified water enters the front carbon rod filter element 04 again for filtration;
the second check valve 82 is arranged between the fourth-stage filtering outlet 62 and the purified water port b, so that the secondary filtered water is prevented from being mixed with purified water and then enters the rear carbon rod filter element 06 again, and the TDS value is difficult to adjust;
the third check valve 83 enables the tertiary filtered water to flow to the post-positioned carbon rod filter element 06 in a one-way mode only, and the tertiary filtered water is prevented from flowing back to the RO membrane filter element 05 again.
Further, the water purifier capable of adjusting the TDS value further comprises a pollution discharge assembly 09, wherein the pollution discharge assembly 09 comprises a water discharge branch 91 and a water discharge valve 92; one end of the drainage branch 91 is connected between the third-stage filtering outlet 52 and the third check valve 83, and the other end is connected between the sewage outlet 53 and the water outlet d; the drain valve 92 is disposed on the drain branch 91, and the drain valve 92 is configured to drain the water in the RO membrane cartridge 05 at regular time.
When the water purifier is in a standby state for a long time, the booster pump 02 stops working, and a large amount of secondary filtered water and tertiary filtered water subjected to reverse osmosis of the RO membrane are stored in the RO membrane filter element 05; diffusion of transmembrane concentrations can cause a problem commonly referred to as "head cup". The problem is embodied as: after the water purifier stops producing water for a period of time, the TDS value is higher than that of water produced when the machine is in normal and stable operation. When the concentration of solute in the 'head cup water' is higher than a certain value, the problem of poor user experience can be brought, for example, the taste becomes poor, scaling is easy to occur after water boiling, and even potential risks can be brought to drinking water safety under extreme conditions.
Therefore, the water purifier needs to discharge water staying in the RO membrane cartridge 05 at regular time; the drain valve 92 is opened at regular time, so that the water in the RO membrane filter element 05 flows out from the tertiary filtration outlet 52; the water in the RO membrane cartridge 05 flows out of the water purifier through the drain branch 91 from the drain 53, thereby avoiding the problems of increase in TDS value and increase in the content of microorganisms in the RO membrane cartridge 05.
Furthermore, the sewage draining assembly 09 further comprises a flushing valve 93, wherein the flushing valve 93 is arranged between the other end of the drainage branch 91 and the sewage draining outlet 53, and the flushing valve 93 is used for controlling the discharge of the wastewater generated by the RO membrane filter element 05. When the RO membrane filter element 05 is cleaned, the flushing valve 93 is opened, so that the cleaning wastewater flows out from the sewage discharge port 53 and is discharged from the water purifier through the water discharge port d; after the RO membrane cartridge 05 is cleaned, the flush valve 93 is closed to prevent the secondary filtered water from flowing out of the drain 53.
Specifically, a water inlet valve 10 is arranged between the primary filtering outlet 15 and a booster pump water inlet 21, and the water inlet valve 10 is electrically connected with the booster pump 02 and used for controlling the water amount entering the booster pump 02. The water inlet valve 10 is matched with a booster pump 02 for use, so that the problem that a water channel leaks or even breaks due to overlarge pressure is avoided.
When the booster pump 02 is turned off, the water path pressure between the primary filter outlet 15 and the booster pump water inlet 21 is increased; when the pressure is greater than the pressure threshold value of the high-pressure switch 03, the high-pressure switch 03 is closed, so that the booster pump 02 stops working, and meanwhile, the water inlet valve 10 is closed, so that primary filtered water is prevented from entering the booster pump 02; when the water pressure between the RO membrane filter element 05 and the rear carbon rod filter element 06 is lower than a pressure threshold value, the high-pressure switch 03 is turned on, the booster pump 02 is started, and meanwhile, the water inlet valve 10 is also turned on by the high-pressure switch, so that the primary filtered water enters the booster pump 02 and is filtered by the front carbon rod filter element 04, the RO membrane filter element 05 and the rear carbon rod filter element 06 in sequence.
A control system of a water purifier capable of adjusting a TDS value comprises a timing drainage module and a taste detection module which are arranged in the water purifier capable of adjusting the TDS value;
the timing drainage module comprises a timer, a drainage valve 92, a cleaning module and a flushing valve 93;
the timer communicates with the drain valve 92 and the purge module, respectively; the timer sends a drainage signal to the drainage valve 92 according to a preset drainage time to control the opening or closing of the drainage valve 92; the drain valve 92 is used to drain the filtered water that is not used for a predetermined period of time;
the cleaning module is used for washing the RO membrane filter element, the flushing valve 93 is used for discharging sewage generated by washing the RO membrane filter element, and the cleaning module is communicated with the flushing valve 93; the timer sends a flushing signal to the cleaning module according to preset cleaning time; after receiving the flushing signal, the cleaning module flushes the RO membrane filter element immediately and sends an opening signal to the flushing valve 93 to open the flushing valve 93; after the RO membrane filter element is washed, the washing module sends a closing signal to the flushing valve 93 to close the flushing valve 93;
the mouthfeel detection module adjusts a TDS value by controlling the switch of the adjusting valve 72, and comprises a TDS detector, a regulation module and the adjusting valve 72;
the TDS detector is used for monitoring a TDS value of the filtered purified water in the water purifier, is communicated with the regulation and control module and sends the TDS value to the regulation and control module; the regulating module is preset with a preset value; the regulating module judges the size of the TDS value, and when the TDS value received by the regulating module is higher than a preset value, the regulating module sends a closing signal to the regulating valve 72, so that the secondary filter water with higher TDS value cannot be mixed with the purified water with lower TDS value, and the TDS value is reduced to the preset value;
when the TDS value that regulation and control module received is less than the predetermined value, regulation and control module sends opening signal to governing valve 72, makes the higher second grade drainage of TDS value mix with the lower pure water of TDS value to improve the TDS value to the predetermined value.
Referring to fig. 4, specifically, the timed draining module may set the predetermined time to be 2, 4 or 6 hours every time according to the user's requirement, so that the draining valve 92 is opened at a fixed time, and the water in the RO membrane filter element 05 flows out from the tertiary filtration outlet 52; the water in the RO membrane cartridge 05 passes through the drain branch 91 and flows out of the drain 53 to the water purifier, thereby avoiding the problems of TDS value rise and microorganism content rise in the RO membrane cartridge 05.
The cleaning module can wash the RO membrane according to the water quality change of tertiary drainage, avoids the problem of pollutant deposits such as a large amount of salinity, organic matter, colloid, microorganism, bacterium and virus at the surface of RO membrane, and the reduction pollutant causes the pollution to the membrane element, makes RO membrane filter core 05 performance decline to the life of extension RO membrane.
The TDS value represents the total content of various soluble mineral salts in water, and the various soluble mineral salts influence the taste of the water, and the purified water has less soluble mineral salts and poorer taste. The taste detection module can be according to the user's demand, through mixing the TDS value of second grade drainage with the pure water after the adjustment filtration to improve the taste of pure water.
The taste detection module adjusts the TDS value by using negative feedback regulation; when the TDS value is increased, the total content of various soluble mineral salts in the water is high, and the regulating and controlling module controls the regulating valve 72 to be closed, so that the secondary filtered water with higher TDS value cannot be mixed with the purified water with lower TDS value, and the TDS value is reduced; similarly, when the TDS value reduces, the total content that contains various solubility mineral salts in the expression aquatic is little, and regulation and control module control governing valve 72 opens, makes the higher second grade drainage of TDS value mix with the lower pure water of TDS value to improve the TDS value to a comparatively reasonable scope.
Referring to fig. 5, a cleaning control method based on the control system of the water purifier capable of adjusting the TDS value includes the following steps:
setting time, namely setting drainage time and drainage duration on the timer;
a water drainage step, after the set water drainage time is reached, the timer sends a water drainage signal to the water drainage valve 92, the water drainage valve 92 is opened, and water in the RO membrane filter element is drained;
and a step of closing the drain valve 92, wherein when the opening time of the drain valve 92 exceeds the drain time, the timer sends a closing signal to the drain valve 92 to close the drain valve 92.
When the water purifier is in a standby state for a long time, the booster pump 02 stops working, and a large amount of secondary filtered water and tertiary filtered water subjected to reverse osmosis of the RO membrane are stored in the RO membrane filter element 05; diffusion of transmembrane concentrations can cause a problem commonly referred to as "head cup". The problem is embodied as: after the water purifier stops producing water for a period of time, the TDS value is higher than that of water produced when the machine operates normally and stably. When the concentration of solute in the 'head cup water' is higher than a certain value, the problem of poor user experience can be brought, for example, the taste becomes poor, scaling is easy to occur after water boiling, and even potential wind can be brought to drinking water safety under extreme conditions.
The user may set the water purifier to discharge unused tertiary filter water every 2, 4 or 6 hours; the water discharge time of the water purifier is not limited to once discharge every 2, 4 or 6 hours, and the water can be discharged in other time periods, so that the problem of 'head cup water' is avoided.
In the specific embodiment, the water purifier is not provided with a pressure barrel and a water storage tank, so a large-flow RO membrane filter element is required to be equipped; the water production quantity of the RO membrane filter element is 400 gallons, and the water purifier needs to be met by a 300-gallon booster pump.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive efforts, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined in the appended claims.
Claims (7)
1. A water purifier capable of adjusting TDS value is characterized in that: comprises a water inlet, a purified water port, a straight-through water port, a water outlet, an ultrafiltration UF filter core component, a booster pump, a high-voltage switch, a front carbon rod filter core, an RO membrane filter core, a rear carbon rod filter core and a taste adjusting component;
the ultrafiltration UF filter core component is provided with a tap water inlet, a straight-through water outlet and a primary filtration outlet;
the booster pump is provided with a booster pump water inlet and a booster pump water outlet;
the preposed carbon rod filter element is provided with a secondary filtering inlet and a secondary filtering outlet;
the RO membrane filter element is provided with a third-stage filtering inlet, a third-stage filtering outlet and a sewage outlet;
the rear carbon rod filter element is provided with a four-stage filtering inlet and a four-stage filtering outlet;
the tap water inlet is connected with the water inlet, and the straight-through water outlet is connected with the straight-through water port; the primary filtering outlet is connected with a water inlet of the booster pump, and a water outlet of the booster pump is connected with the secondary filtering inlet; the secondary filtering outlet is connected with the tertiary filtering inlet, the tertiary filtering outlet is connected with the quaternary filtering inlet, and the sewage outlet is connected with the water outlet; the high-voltage switch is arranged between the third-stage filtering outlet and the fourth-stage filtering inlet and is electrically connected with the booster pump, and the high-voltage switch is used for controlling the booster pump to be switched on or switched off; the four-stage filtering outlet is connected with the pure water port;
the taste adjusting component comprises an adjusting branch pipe, an adjusting valve and a TDS detector; one end of the regulating branch pipe is connected with the secondary filtering outlet, and the other end of the regulating branch pipe is connected with the quaternary filtering outlet;
the regulating valve is arranged on the regulating branch pipe and is electrically connected with the TDS detector; the TDS detector sets up adjust between the other end of branch pipe and the pure water mouth for the TDS value of monitoring water and control opening or closing of governing valve.
2. The water purifier capable of adjusting TDS values of claim 1, wherein: the ultrafiltration UF filter core component comprises a first ultrafiltration UF filter core and a second ultrafiltration UF filter core, and the first ultrafiltration UF filter core and the second ultrafiltration UF filter core are arranged in parallel;
the first ultrafiltration UF filter element is provided with a first tap water inlet, a first straight water outlet and a first primary filtration outlet, and the second ultrafiltration UF filter element is provided with a second tap water inlet, a second straight water outlet and a second primary filtration outlet;
the tap water inlet is formed by the combination of a first tap water inlet and a second tap water inlet; the straight water outlet is formed by merging a first straight water outlet and a second straight water outlet; the primary filtering outlet is formed by the combination of the first primary filtering outlet and the second primary filtering outlet.
3. The water purifier capable of adjusting TDS values of claim 1, wherein: the anti-backflow component comprises a first check valve, a second check valve and a third check valve;
the first check valve is arranged between one end of the adjusting branch pipe and the adjusting valve;
the second check valve is arranged between the four-stage filtering outlet and the pure water port;
the third check valve is arranged between the high-pressure switch and the four-stage filtering inlet.
4. The water purifier capable of adjusting TDS values of claim 3, wherein: the water purifier also comprises a sewage discharge assembly, wherein the sewage discharge assembly comprises a water discharge branch and a water discharge valve; one end of the drainage branch is connected between the third-stage filtering outlet and the third check valve, and the other end of the drainage branch is connected between the sewage draining outlet and the water draining outlet; the drain valve sets up on the drainage branch, the drain valve is used for regularly draining away the water in the RO membrane filter core.
5. The water purifier capable of adjusting TDS values of claim 4, wherein: the blowdown subassembly still includes the flushometer, the flushometer sets up between the other end of drainage branch and the drain, the flushometer is used for controlling the emission of the produced waste water of RO membrane filter core.
6. The water purifier capable of adjusting TDS values of claim 1, wherein: and a water inlet valve is arranged between the primary filtering outlet and the water inlet of the booster pump, and the water inlet valve is electrically connected with the high-voltage switch and used for controlling the water quantity entering the booster pump.
7. The water purifier capable of adjusting TDS values of claim 1, wherein: the booster pump has a power of 300 gallons.
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| CN202020034613.8U CN211471013U (en) | 2020-01-08 | 2020-01-08 | Water purifier capable of adjusting TDS value |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111087089A (en) * | 2020-01-08 | 2020-05-01 | 佛山市顺德区碧信环保科技有限公司 | Water purifier capable of adjusting TDS value and control system and cleaning control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111087089A (en) * | 2020-01-08 | 2020-05-01 | 佛山市顺德区碧信环保科技有限公司 | Water purifier capable of adjusting TDS value and control system and cleaning control method thereof |
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