CN204841420U - Reverse osmosis water quality processing device - Google Patents
Reverse osmosis water quality processing device Download PDFInfo
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- CN204841420U CN204841420U CN201520575144.XU CN201520575144U CN204841420U CN 204841420 U CN204841420 U CN 204841420U CN 201520575144 U CN201520575144 U CN 201520575144U CN 204841420 U CN204841420 U CN 204841420U
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Abstract
The utility model provides a method of reverse osmosis water quality processing device and, relate to set up pressure switch and pressure probe before reverse osmosis membrane, pressure switch or pressure probe adjust the operating power of DC -DC out put voltage control booster pump to pressure data feedback to MCU, MCU according to pressure numerical value, MCU is with the concentrated water of pulse mode control waste water solenoid valve intermittent type discharge, through DC -DC regulation booster pump operating power, combine MCU control waste water solenoid valve with the concentrated water mode of intermittent type pulse mode discharge, reach control reverse osmosis membrane operating pressure effect, simultaneously, MCU adjusts pulse frequency's method control waste water exhaust velocity, the purpose that reaches the water rate of producing of adjusting or waste water proportion and adjust the soluble mineral substance content of pure water side.
Description
Technical field
The utility model relates to a kind of reverse osmosis water quality treating apparatus; More specifically, the utility model relates to arrange pressure switch and pressure probe before reverse osmosis membrane, and pressure switch or pressure probe feed back to MCU pressure data, and MCU regulates the reference voltage of DC-DC according to pressure value, regulate DC-DC output voltage with this, and then control the operate power of booster pump; MCU controls Wastewater by Electric magnet valve interval in a pulsed fashion and discharges condensed water; Regulate booster pump operate power by DC-DC, control Wastewater by Electric magnet valve in conjunction with MCU and discharge condensed water mode in intermittent pulse mode, reach and control reverse osmosis membrane operating pressure effect; Meanwhile, the method for MCU regulating impulse frequency controls the waste water velocity of discharge, reaches and regulates producing water ratio or waste water ratio object; Or MCU controls the waste water velocity of discharge by regulating impulse frequency approach, regulates the time of contact of former water and reverse osmosis membrane, reach according to reverse osmosis membrane salt rejection rate ratio with this, pure water side dissolvable mine material is regulated to contain object.
Background technology
Reverse osmosis membrane can through the solable matter of relative molecular weight less than 150.The mineral matter that needed by human body is wanted mostly is, as calcium carbonate (100.12), magnesium hydroxide (58.32), calcium silicates (116), magnesium silicate (100.39), magnesium silicate (100.39), magnesium bicarbonate (95.33), silica (60.08) etc. in the solable matter of molecular weight less than 150.General civilian reverse osmosis membrane salt rejection rate is 92%-97%, as long as improve reverse osmosis membrane Yuan Shui side soluble mineral salt content, so the soluble mineral salt content of pure water side improves with regard to ratio.
Regulate drinking water dissolvable mine material content, there is no easy, reliable, safe physics or chemical method at present.
It is nanometer level microporous process of osmosis that hydrone arrives pure water side through reverse osmosis membrane from Yuan Shui side, process is extremely slow, the reverse osmosis water quality treating apparatus had at present or method or technological process take booster pump direct weighting, the mode of waste water ratio pressure release more, and process cannot accurately control; Booster pump direct weighting mode makes reverse osmosis membrane operating pressure accurately control, and the direct pressure release mode of waste water ratio also makes reverse osmosis membrane operating pressure accurately control; Meanwhile, which makes product water process accurately control, as former water and reverse osmosis membrane uncontrollable for time of contact, particularly time of contact too short cause produce water close to pure water, without mineral matter; The pressure release effluent continued is wasted water; Reverse osmosis membrane produces water speed temperature influence, and lasting, fixed speed effluent causes the drawbacks such as producing water ratio temperature influence.
The mode of reverse osmosis membrane operating pressure is regulated to have a lot, as booster pump frequency conversion, the pressure release of adjustment waste water ratio, the technology such as voltage stabilizing before water reflux pump after booster pump pump; Equal existing defects.As booster pump frequency conversion, frequency conversion needs special variable-frequency motor and frequency changer circuit, industry many uses direct current carbon brush pump, and VFC is complicated, and particularly when the slow-speed of revolution, during VFC power tube low duty ratio, capacitance-resistance characteristic causes the large sharply temperature rise of power tube internal resistance.
Waste water ratio is regulated to regulate pressure mode to be mechanical system, cannot be accurate, also cannot the hydraulic pressure of challenging changes at any time, particularly regulate the inevitable drawback that waste water ratio causes waste water ratio to change.
After booster pump pump, water backflow voltage stabilizing is effective under certain former water pressure scope, and its effect waits the impact of key parameter also by waste water ratio pressure release size, and this voltage regulation way parameter is relatively fixing, cannot the hydraulic pressure of challenging changes.
After reverse osmosis membrane produces water, reverse osmosis membrane surface produces concentration polarization phenomenon, form concentration polarization layer, because lighter former water has larger chemical potential than the dense water of concentration polarization layer, chemical potential power, hydrone in former water can be supplemented to concentration polarization layer endlessly, and now concentration polarization layer becomes that there is trend, that hydrone is replaced switching layer, and switching layer exchange process power is driven by the chemical potential of concentration difference self-assembling formation; On one side, reverse osmosis membrane constantly produces water, hydrone constantly supplements into, as long as product water speed is less than the speed that hydrone supplements into, so produces water process with regard to continuing permanent carrying out, forming super counter-infiltration phenomenon.Pressure is the key element controlling reverse osmosis produced water speed, and the reverse osmosis water quality processing technological flow structure had at present is not all the reverse osmosis produced water pressure of accurate, accurate control that requires according to super counter-infiltration phenomenon and produces Water flow-path design.
Utility model content
The purpose of this utility model regulates booster pump (6) operate power by DC-DC (21) regulation output voltage system, regulates booster pump (6) operate power fine adjustment reverse osmosis membrane (7) operating pressure.Simultaneously, the Wastewater by Electric magnet valve (16) that MCU (20) controls accurately discharges waste water with Frequency Patterns, water production control rate in this way, waste water ratio, the time of contact (flow velocity) of reverse osmosis membrane (7) and former water, the key parameters such as reverse osmosis membrane (7) Yuan Shui side TDS value, reverse osmosis membrane (7) pure water side TDS value, reverse osmosis membrane (7) waste water side TDS value.Reach and accurately control the object that reverse osmosis membrane (7) produces water process.
In order to make reverse osmosis water quality treating apparatus reverse osmosis membrane produce water pressure accurately, accurately, producing Water flow-path can accurately control, and is applicable to hydrone through the slow process of reverse osmosis membrane, meets the exchange equilibrium of switching layer hydrone; Reach producing water ratio/controlled system of waste water ratio, adjustable, produce the object effect that water dissolvable content of mineral substances is adjustable arbitrarily within the specific limits; And overcome that general reverse osmosis water quality treating apparatus waste water is many, producing water ratio is low, and the drawback of temperature influence, the utility model device arranges pressure switch and pressure probe before reverse osmosis membrane, MCU regulates the reference voltage of DC-DC according to the pressure data that pressure switch or pressure probe are fed back, reference voltage mode is regulated to regulate DC-DC output voltage with this, and then control the operate power of booster pump, regulate reverse osmosis membrane operating pressure by regulating the operate power mode of booster pump in conjunction with intermittent pulse effluent mode;
MCU regulates the speed of waste water discharge by regulating impulse Frequency Patterns simultaneously, to regulate producing water ratio or waste water ratio, or pass through the time of contact of the regulating impulse frequency adjustment waste water velocity of discharge former water of mode fine adjustment and reverse osmosis membrane, to change or to improve former water dissolvable mineral salt content, and then produce water dissolvable content of mineral substances according to reverse osmosis membrane salt rejection rate proportion adjustment pure water side, regulate with pure physical method and produce water dissolvable content of mineral substances.Regulating frequency mode accurately facilitates.Device controls reverse osmosis membrane with accurate process control mode and produces water process, comprises reverse osmosis membrane operating pressure, the time of contact of former water and reverse osmosis membrane, producing water ratio, wastewater rate, waste water Soluble matter content, product water dissolvable content of mineral substances etc.
The utility model reaches its technical scheme required:
The utility model device comprises water intaking valve, (1) PP filter core, (2) active carbon filter core, (3) pp filter core, (4) entering water electromagnetic valve, (5) booster pump, (6) reverse osmosis membrane, (7) non-return valve, (8) rearmounted filter core, (10) tap, (11) low tension switch, (12) flow-limiting valve, (15) Wastewater by Electric magnet valve, (16) the full pressure switch of water, (17) water butt, (18) power supply, (19) relay, (22) etc. necessary conventional reverse osmosis treatment device for water equipment,
Water intaking valve (1) PP filter core (2) active carbon filter core (3) PP filter core (4) entering water electromagnetic valve (5) booster pump (6) reverse osmosis membrane (7) non-return valve (8) TDS probe (9) rearmounted filter core (10) tap (11) successively head and the tail connects;
Low tension switch (12) is connected to optional position between water intaking valve (1) and entering water electromagnetic valve (5) by threeway;
Before film, pressure switch (13) pressure probe (14) is by threeway connection and position between booster pump (6) and reverse osmosis membrane (7);
Flow-limiting valve (15) Wastewater by Electric magnet valve (16) is connected in series in reverse osmosis membrane (7) waste water side;
The full pressure switch (17) of water is installed on non-return valve (8) and water butt (18) position by threeway;
Connect and compose reverse osmosis water quality treating apparatus Water quality processing system.(referring to Fig. 1)
Entering water electromagnetic valve (5) booster pump (6) Wastewater by Electric magnet valve (16) negative pole is connected in parallel power supply (19) negative pole;
Full pressure switch (17) the automatically controlled sections in series of pressure switch (13) water before low tension switch (12) film, head end connects positive source, tail end connection is connected in parallel entering water electromagnetic valve (5), DC-DC (21) and relay (22) positive pole, and tail end connects MCU (20) I/O port with the linear formula of signal;
Relay (22) exports and connects the input of Wastewater by Electric magnet valve (16) power supply;
TDS pops one's head in (9) pressure probe (14) with signal data linear formula connection MCU (20) I/O port;
MCU (20) exports with DC-DC reference voltage signal form control DC-DC (21) voltage, with the break-make of digital signal pulses frequency form control relay (22);
Reverse osmosis water quality treating apparatus circuit control system is formed after connecting.(referring to Fig. 2)
Wherein, reverse osmosis membrane (7) operating pressure control system is made up of pressure switch (13), pressure probe (14), DC-DC (21), MCU (20), booster pump (6), reverse osmosis membrane (7) before entering water electromagnetic valve (5), film; Before film, pressure switch (13), pressure probe (14) detection reverse osmosis membrane (7) run operating pressure signal input MCU (20), MCU (20) is according to the output voltage of pressure signal control DC-DC (21), control the operating pressure of reverse osmosis membrane (7) in the operate power mode controlling booster pump (6), form reverse osmosis membrane (7) the operating pressure control system of pressure feedback mode;
Waste water discharge control system by entering water electromagnetic valve (5), relay (22), MCU (20), flow-limiting valve (15), Wastewater by Electric magnet valve (16), form; MCU (20) controls the velocity of discharge of waste water by the mode of relay (22) control Wastewater by Electric magnet valve (16) switching frequency; The waste water forming controlled frequency mode discharges control system; (referring to Fig. 1 Fig. 2)
The mode of non-continuous pressure release makes permeable membrane (7) work under a steady pressure.
MCU (20) is by regulating Wastewater by Electric magnet valve (16) opening/closing time interval length, namely frequency adjustment mode controls the opening and closing of Wastewater by Electric magnet valve (16) to regulate the waste water velocity of discharge, regulates producing water ratio, waste water ratio (wastewater rate) with this;
Or the time of contact mode of MCU (20) by regulating Wastewater by Electric magnet valve (16) opening and closing Frequency Patterns to control former water and reverse osmosis membrane (7), to regulate or to improve the dissolvable mine material content that reverse osmosis membrane produces water, and change producing water ratio;
The utility model discloses and a kind ofly utilizes above-mentioned reverse osmosis water quality treating apparatus, and by the physical method regulating Wastewater by Electric magnet valve (16) opening and closing frequency adjustment reverse osmosis membrane to produce water dissolvable content of mineral substances, and content is adjustable arbitrarily within the specific limits.
Relay (22) provides the execution power supply of Wastewater by Electric magnet valve (16), can use metal-oxide-semiconductor, and high power transistor constant power exports and replaces.Be preferably relay;
The DAC function of MCU, can with special DAC conversion chip, or PWM exports and adds capacitance-resistance filter equivalence and realize.Be preferably PWM output and add capacitance-resistance filter.
Reverse osmosis membrane (7) can be connected by multimembrane, or in parallel, or connection in series-parallel multilevel hierarchy, to raise the efficiency.
Reverse osmosis membrane (7) can be replaced by NF membrane, and multimembrane series connection, or in parallel, or connection in series-parallel multilevel hierarchy, to raise the efficiency.
Entering water electromagnetic valve (5) power supply also can connect relay, and MCU (20) has exported the switch control rule of magnetic valve according to run signal control relay.Flow-limiting valve (15) Wastewater by Electric magnet valve (16) is connected in series in reverse osmosis membrane (7) waste water side, also can be connected in parallel in waste water side, function equivalent, can replace mutually; When parallel connection, need to regulate flow-limiting valve (15) aperture parameters, make flow velocity slower.Be preferably flow-limiting valve (15) Wastewater by Electric magnet valve (16) series connection.
Device can directly feed back by pressure probe (14) operating pressure that MCU (20) pressure mode regulates reverse osmosis membrane (7), and have the direct advantage of effect, but cost is high, technical requirement is high.When pressure probe (14) directly feeds back MCU (20) pressure mode, the operating pressure of reverse osmosis membrane (7) according to the performance setting of desired value or different counter-infiltration material at 1.5-6kg/cm2, representative value 3.5kg/cm2.
Also can by pressure switch before film (13) feedback pressure mode.Before film, pressure switch (13) has fixing opening pressure, opening pressure routine setting 4.5kg/cm2.For counter-infiltration optimum working pressure 3.5kg/cm2, when MCU (20) can disconnect according to pressure switch before film (13), output to DC-DC (21) reference voltage value infer former water pressure by the program MCU (20) that converts, and need the output optimum voltage scope of DC-DC (21) when determining reverse osmosis membrane optimum working pressure 3.5kg/cm2, to make reverse osmosis membrane (7) steady operation in optimal pressure range.DC-DC (21) starts progressively to boost according to minimum voltage within the scope of optimum voltage, process lasts a period of time, is about 1-30 minute according to program setting, until pressure switch (13) disconnects again before film, circulate this process.Before film, pressure switch (13) determines that the method for optimum voltage scope has control simply, the advantage of water route, simple circuit.The utility model discloses and a kind ofly utilizes above-mentioned reverse osmosis water quality treating apparatus by the method for pressure switch before film (13) feedback regulation reverse osmosis membrane operating pressure, and the method described in Fig. 3 that refers to comprises the steps:
The water flowing of [step S000] device is energized, and MCU (20) initializes;
[step S100] reads initial operation voltage parameter in memory;
[step S200] plant running, DC-DC (21) boosts step by step from initial voltage;
Before [step S300] film, pressure switch (13) disconnects and resetting;
When [step S400] MCU (20) disconnects according to pressure switch before film (13), DC-DC (21) output voltage calculates best initial voltage;
[step S500] plant running, DC-DC (21) boosts step by step from new best initial voltage;
Circulation performs step S300, until the full pressure switch (17) of water disconnects;
The full pressure switch (17) of [step S600] water disconnects, and device water is full standby;
[step S700] user open water tap (11) uses water, and after lack of water, full pressure switch (17) turning on reset of water, performs step S500.
Be disclosed application the utility model device, MCU (20) is by pressure switch before film (13) feedback regulation reverse osmosis membrane operating pressure method.Before film, pressure switch (13) pressure probe (14) function is overlapping, and both can replace mutually completely, and before film, pressure switch (13) is generally mechanical switch, has and installs simply, the lower advantage of cost.
The general salt content represented by electrical conductivity or TDS value in water, this device TDS value represents dissolvable mine material content, electrical conductivity has to be measured conveniently, measure or represent direct advantage, the MCU (20) of device automatically can regulate Wastewater by Electric magnet valve (16) switching frequency to regulate according to user TDS demand and produce water dissolvable content of mineral substances; The utility model further discloses and a kind ofly utilizes above-mentioned reverse osmosis water quality treating apparatus, being popped one's head in by TDS, regulating impulse frequency is to regulate the method for producing water dissolvable content of mineral substances automatically for (9) numeric feedback MCU (20), and the method described in Fig. 4 that refers to comprises the steps:
The water flowing of [step Z000] device is energized, and MCU (20) initializes;
[step Z100] device acquiescence or user manually input and produce water TDS demand;
[step Z200] stores TDS demand data;
[step Z300] plant running;
It is different that [step Z400] MCU (20) judges to produce water TDS and user's request TDS value difference, adjusts Wastewater by Electric magnet valve (16) frequency;
Circulation performs step Z300 until the full pressure switch (17) of water disconnects;
The full pressure switch (17) of [step Z500] water disconnects, and device water is full standby;
[step Z600] user open water tap (11) uses water, and after lack of water, full pressure switch (17) turning on reset of water, performs step Z300.
Be disclosed application the utility model device, MCU (20) regulates Wastewater by Electric magnet valve (16) switching frequency mode to regulate the method for producing water dissolvable content of mineral substances automatically.
Device can regulate Wastewater by Electric magnet valve (16) switching frequency mode to regulate manually and produce water dissolvable content of mineral substances.The utility model further discloses and a kind ofly utilizes above-mentioned reverse osmosis water quality treating apparatus, and regulated the method for producing water dissolvable content of mineral substances by manual adjustment pulse frequency, the method described in Fig. 5 that refers to comprises the steps:
[steps A 000] device water flowing is energized, and MCU (20) initializes;
[steps A 100] user manually inputs Wastewater by Electric magnet valve (16) switching frequency data;
[steps A 200] stores user's Wastewater by Electric magnet valve (16) frequency data;
[steps A 300] plant running;
The full pressure switch (17) of [steps A 400] water disconnects, and device water is full standby;
[steps A 500] user's open water tap (11) use water, and after lack of water, water full gate closes turning on reset, perform steps A 300;
[steps A 600] user adjusts Wastewater by Electric magnet valve (16) switching frequency data according to product water TDS;
Be disclosed application the utility model device, manual adjustment Wastewater by Electric magnet valve (16) switching frequency mode regulates the method for producing water dissolvable content of mineral substances.
In said apparatus operating procedure and parameter, method step built-in MCU (20) program or in memory, reverse osmosis membrane (7) operating pressure control system and waste water are discharged control system and are worked in coordination with constituent apparatus product water Process Control System by MCU (20) program.Actual MCU (20) program function also needs the basic functions such as filter element life judges, filter core cleans automatically, breakdown judge, abnormality alarm, and these functional parameters are all solidificated in MCU (20) program or in memory.The plant running parameter that code form exists also is comprised: best DC-DC (21) output voltage during current former water hydraulic pressure in MCU (20), the full standby signal of water judges, produce the corresponding correlation of water TDS value and Wastewater by Electric magnet valve (16) drainage frequency, electrical conductivity and TDS value convert, the optimum Match of the fine setting of DC-DC (21) output voltage and reverse osmosis membrane (7) current performance, filter element life judges, the standby cleaning automatically of answering a pager's call of filter core, breakdown judge, abnormality alarm, the miscellaneous functions such as DC-DC (21) output voltage and Wastewater by Electric magnet valve (16) switching frequency temperature-compensating, treatment device for water technological process or function are solidificated in MCU (20) program with code form, or in memory.Reverse osmosis membrane (7) operating pressure control system and waste water are discharged control system and are worked in coordination with constituent apparatus product water Process Control System by MCU (20) program.
In the utility model device, DC-DC refers to that DC voltage turns the electric pressure converter of DC voltage.DC-DC voltage schemes is widely used in TV, computer, the equipment such as household electrical appliances, and have scheme maturation, peripheral cell is few, and control chip is selected many, and power output is large; Particularly control simple, only need to change chip reference voltage just passable.Than frequency conversion, regulate waste water ratio pressure release, water backflow voltage regulation way after booster pump pump, have and control simply, cost is lower, and importantly meeting common booster pump is the feature having brush straightway pump; When the slow-speed of revolution, with frequency conversion ratio, there is original paper few, low in energy consumption, reliable advantage.
Selectively excellent, DC-DC (21) reference voltage feeds back MCU (20) by reverse osmosis membrane (7) operating pressure and exports DAC voltage, feed back two voltage superposition with DC-DC (21) output voltage self to form, two voltage superposition work in coordination with the voltage control mode forming reference voltage, more simple MCU (20) exports the mode of DAC to DC-DC (21) reference voltage can according to load trim voltage power, more rationally.Due to the benchmark principle of voltage comparator, when principle of stacking, MCU (20) still can by output reference voltage height mode accurately control DC-DC (21) output voltage change arbitrarily in certain limit.
Realizing the voltage conversion method that DC voltage turns DC voltage has multiple:
Method 1: switching power source chip, as LM2596, XL4016-ADJ, XL4501-ADJ, or ripe switching power source chip or the DC-DC scheme such as boost chip.The mode of MCU (20) gauge tap power supply chip reference voltage realizes.Have cost low, control reliable, energy consumption is low, the outstanding advantage that efficiency is high.
Method 2:MCU (20) directly PWM exports driving power element, then transformer exports interchange, and AC rectification becomes direct current mode.Comparatively switching power source chip mode is complicated, and cost is relatively high, and reliability is low, and particularly when booster pump (6) low power run, power component energy consumption is high, temperature rise.
Method 3:MCU (20) control PWM exports special chip driving power element, PWM ripple is rectified into direct current mode.Scheme is ripe, and reliability is higher, and cost is general, but overall control mode is still more complicated than switching power source chip.
In actual application, also can adopt the method that AC-DC changes, as long as meet the method for pressure feedback regulation output DC DC voltage, the inner side circuit of AD-DC is also AC-DC-DC mode.
The beneficial effect of the utility model device is:
1. producing water ratio is high
Producing water ratio mainly controls by the pulse frequency of the effluent of MCU (20) micro computer setting; According to water quality, automatically can select or artificial selection by computer program between 30%-99%; Producing water ratio is set automatically by artificial or program, eliminates seasonal temperature to the impact of producing water ratio.
2. filter element life is long
Producing water ratio is high, and natural filter core load is just little, and filter element life is relatively longer.In the preposition micro-stifled situation of device, do not affect user use.
3. reverse osmosis membrane operating pressure has uniformity
Pressure mainly controls by MCU (20), and pressure is not with the former water hydraulic pressure of difference, and different booster pump performance, different effluent pressure release pore size affects.General counter-infiltration establishes treatment device for water to take the direct pressure release mode of waste water ratio, and waste water ratio direct pressure release mode will be difficult to obtain accurate reverse osmosis membrane operating pressure by the mode of internal control.
4. the product water dissolvable content of mineral substances that accurately sets of pure physical method
The resolvability material of molecular weight less than 150 except minority volatile harmful material, most mineral salt of benefiting for human body.Reverse osmosis deaslination rate is 92%-97%, the mineral concentration that improve former water produces the mineral concentration and then raising of water, this device is in the mode of the effluent regulating intermittent pulse frequency and control, extend time of contact and the flow process of former water and reverse osmosis membrane, produce constantly carrying out of water, Yuan Shui side mineral matter constantly improves, pure water side soluble mineral salinity proportionally follows raising, the utility model device and method can pass through electronic program control impuls frequency approach mode, accurately the content of mineral substances of water is produced in setting within the specific limits, changing Frequency Patterns controls extremely simple, effect is accurate, be adjusted to pure physics mode, safe and reliable.
5. energy-conservation
According to measuring and calculating, common counter-infiltration operate power is about 24V/22W.By the conversion of DC-DC, this device running average power is 9.5V/6W.Energy-saving effect is obvious, and run the distinguishable noise of more unmanned ear, component life is long.Waste water is few, economizes on resources.
Accompanying drawing explanation
Fig. 1 is the utility model device Water quality processing system schematic diagram
Fig. 2 is the utility model device circuit control system catenation principle figure
Fig. 3 is the method step flow chart of pressure switch (13) feedback regulation reverse osmosis membrane (7) operating pressure before the utility model device film
Fig. 4 the utility model device MCU (20) regulates the method step flow chart producing water dissolvable content of mineral substances automatically
Fig. 5 the utility model device regulates manually and produces water dissolvable content of mineral substances method step flow chart
Wherein, 1, water intaking valve, 2, PP filter core, 3, active carbon filter core, 4, PP filter core, 5, entering water electromagnetic valve, 6, booster pump, 7, reverse osmosis membrane, 8, non-return valve, 9, TDS probe, 10, rearmounted filter core, 11, tap, 12, low tension switch, 13, pressure switch before film, 14, pressure probe, 15, flow-limiting valve, 16, Wastewater by Electric magnet valve, 17, the full pressure switch of water, 18, water butt, 19, power supply, 20, MCU, 21, DC-DC, 22, relay.
Detailed description of the invention
Embodiment 1
In Fig. 1
Water intaking valve (1) PP filter core (2) active carbon filter core (3) PP filter core (4) entering water electromagnetic valve (5) booster pump (6) reverse osmosis membrane (7) non-return valve (8) TDS probe (9) rearmounted filter core (10) tap (11) successively head and the tail connects;
Low tension switch (12) is connected to optional position between water intaking valve (1) and entering water electromagnetic valve (5) by threeway;
Before film, pressure switch (13) pressure probe (14) is by threeway connection and position between booster pump (6) and reverse osmosis membrane (7);
Flow-limiting valve (15) Wastewater by Electric magnet valve (16) is connected in series in reverse osmosis membrane (7) waste water side;
The full pressure switch (17) of water is installed on non-return valve (8) and water butt (18) position by threeway;
Connect and compose reverse osmosis water quality treating apparatus Water quality processing system.
In Fig. 2
Entering water electromagnetic valve (5) booster pump (6) Wastewater by Electric magnet valve (16) negative pole is connected in parallel power supply (19) negative pole;
Full pressure switch (17) series connection of pressure switch (13) water before low tension switch (12) film, head end connects positive source, tail end connection is connected in parallel entering water electromagnetic valve (5) DC-DC (21) and relay (22) positive pole, connects MCU (20) I/O port with the linear formula of signal;
Relay (22) exports and connects the input of Wastewater by Electric magnet valve (16) power supply;
TDS pops one's head in (9) pressure probe (14) with data wire form connection MCU (20) I/O port;
MCU (20) exports with reference voltage signal form control DC-DC (21) voltage, with the break-make of digital signal pulses frequency form control relay (22);
MCU (20) inside also needs the program with device technique flow path match, and the product water program of routine, as start is rinsed, and breakdown judge, fault alarm, filter element replacing prompting etc.
Reverse osmosis water quality treating apparatus circuit control system is formed after connecting.
Pressure switch (13), pressure probe (14), DC-DC (21), MCU (20), booster pump (6), reverse osmosis membrane (7) composition operating pressure control system before entering water electromagnetic valve (5), film; Before film, pressure switch (13), pressure probe (14) detection reverse osmosis membrane (7) run operating pressure signal input MCU (20), MCU (20) is according to the output voltage of pressure signal control DC-DC (21), control the operating pressure of reverse osmosis membrane (7) in the operate power mode controlling booster pump (6), form reverse osmosis membrane (7) the operating pressure control system of pressure feedback mode;
Entering water electromagnetic valve (5), relay (22), MCU (20), flow-limiting valve (15), Wastewater by Electric magnet valve (16) composition waste water discharges control system; MCU (20) controls the velocity of discharge of waste water by the mode of relay (22) control Wastewater by Electric magnet valve (16) switching frequency; The waste water forming controlled frequency mode discharges control system;
Low tension switch (12) has hydraulic pressure normally closed for former water;
Before film, pressure switch (13) is often opened for upper pressure limit; Empirical value is about 4.5kg/cm2 open circuit.
The full pressure switch (17) of water is completely often opened for water;
After device connects water source power supply, open water intaking valve, low tension switch (12) conducting, full pressure switch (17) circuit turn-on of pressure switch (13) water before film, to DC-DC (21) output reference voltage after MCU (20) acquisition working signal, DC-DC (21) exports height form with voltage and exports control booster pump (6) operate power, MCU (20) controls booster pump (6) operate power according to the pressure signal of pressure switch before film (13) or pressure probe (14), makes reverse osmosis membrane (7) have metastable operating pressure.Simultaneously, MCU (20) is with the break-make of intermittent pulse form control relay (22), discharge the waste water after concentrating to control Wastewater by Electric magnet valve (16) impulse form, make reverse osmosis membrane (7) have metastable operating pressure.
MCU (20) discharges waste water with intermittent pulse frequency form control Wastewater by Electric magnet valve (16), changes producing water ratio and waste water ratio by changing frequency adjustment.Device continuous service, until water butt (18), full pressure switch (17) open circuit of water, device enters into standby mode.When user fetches boiling water tap (11) water intaking, water butt (18) lack of water, full pressure switch (17) conducting of water, device restarts operation, and circulate this process.
In this apparatus design, according to the difference of material, the optimum working pressure of reverse osmosis membrane (7) is also different; The utility model device composite polyamide material reverse osmosis membrane representative value 3.5 ± 0.5kg/cm2 scope, to meet the continuable super counter-infiltration phenomenon of MCU (20) switching layer (concentration polarization layer) process.The polyamide material reverse osmosis membrane typical case optimum working pressure value 5-6kg/cm2 that conventional reverse osmosis treatment device for water is same.The utility model description with composite polyamide material reverse osmosis membrane representative value 3.5 ± 0.5kg/cm2 for condition of work, but do not mean the use other materials reverse osmosis membrane of the utility model device time recommend optimum working pressure value also numerical value for this reason.
Before film, pressure switch (13) pressure probe (14) all has the function of detection pressure, and both have overlap at function, can replace mutually.During pressure probe (14) mode, setting reverse osmosis membrane optimum working pressure 3.5 ± 0.5kg/cm2 scope, directly feeds back pressure regulation usually; Pressure probe (14) mode is directly fed back pressure regulation and is had pressure regulation directly, conveniently, accurately, but pressure probe (14) mostly is electronic probe, and cost is higher, uses slightly complicated.Before mainly make use of film by pressure switch before film (13) detecting pressure mode, pressure switch (13) has the principle of having fixed disconnected pressure, by constantly improving DC-DC (21) output reference voltage to improve booster pump (6) operate power, until pressure switch (13) switch disconnects before film, with carry step by step high-tension step by step number or film before pressure switch (13) switch disconnect time output voltage values judge former water pressure, then best initial voltage is determined according to former water pressure, under making reverse osmosis membrane (7) be operated in optimum pressure state, and continue 1-30 minute, then boost step by step from this best initial voltage, until pressure switch (13) disconnects reset before film, device also boosts step by step again after the initial pressurize of optimum voltage minimum voltage, circulate this process, until the full pressure switch (17) of water disconnects standby, after user's water, full pressure switch (17) conducting of water, device startup optimization, until the full pressure switch (17) of water disconnects standby again.Method step refers to Fig. 3.Pressure switch (17) judges that optimum output voltage mode is not limited in the method step.
Full pressure switch (17) opening pressure of water is set as 3kg/cm2-4.5kg/cm scope any number, and ultralow press mold can set 1.2kg/cm, bitter 8kg/cm scope, determines according to membrane material or treatment process or MCU (20) logic; Time MCU (20) can disconnect according to the full pressure switch (17) of water, DC-DC (21) output voltage size calculates former water pressure, and determines the initial starting voltage of best DC-DC (21).MCU (20) is these operational factors being stored in program or in memory with program code.
The effluent of intermittent pulse form can also realize controlling waste water ratio (producing water ratio), or the function of the time of contact of former water and reverse osmosis membrane (7).Pulse frequency mode combines various, and as static 300 seconds arrange 8 seconds, at this time producing water ratio can reach 90%, or when within 80 seconds, arranging 10 seconds, producing water ratio about 65%, meets different raw water quality requirement, saves this parameter can regulate waste water ratio arbitrarily according to water quality within the specific limits by key.Also can by the dissolvable mine material content of the former water that regulates this frequency shift former water to regulate reverse osmosis membrane (7) to contact with the method for reverse osmosis membrane time of contact, obtain the product water of certain proportion value dissolvable mine material again according to reverse osmosis deaslination rate, content is adjustable arbitrarily within the specific limits.In this device, can manually or computer automatically set and produce water TDS value demand, automatically obtain the product water close to demand TDS value by MCU (20) adjustment Wastewater by Electric magnet valve (16) pulse frequency mode.Step method refers to Fig. 4.
The utility model device manual adjustment Wastewater by Electric magnet valve (16) pulse frequency mode can obtain the product water of a certain TDS numerical value, and then according to magnet valve (16) pulse of user's request manual adjustment Wastewater by Electric, make product water TDS close to user's request.Method step refers to Fig. 5.
Reverse osmosis membrane materials can not by the corrosion of chlorine, therefore, before reverse osmosis membrane, filter core is set, as PP filter core (2) active carbon filter core (3) PP filter core (4), also combination can be changed, as quartz sand according to water quality, ion exchange resin, Si-P crystal, the material filter elements such as KDF, these are all conventional reverse osmosis water quality pre-process technique.
Embodiment 2
Water intaking valve (1) PP filter core (2) active carbon filter core (3) PP filter core (4) entering water electromagnetic valve (5) booster pump (6) reverse osmosis membrane (7) non-return valve (8) TDS probe (9) rearmounted filter core (10) tap (11) successively head and the tail connects;
Low tension switch (12) is connected to optional position between water intaking valve (1) and entering water electromagnetic valve (5) by threeway;
Before film, pressure switch (13) pressure probe (14) is by threeway connection and position between booster pump (6) and reverse osmosis membrane (7);
The full pressure switch (17) of water is installed on non-return valve (8) and water butt (18) position by threeway;
Connect and compose reverse osmosis water quality treating apparatus Water quality processing system.
Entering water electromagnetic valve (5) booster pump (6) Wastewater by Electric magnet valve (16) negative pole is connected in parallel power supply (19) negative pole;
Full pressure switch (17) series connection of pressure switch (13) water before low tension switch (12) film, head end connects positive source, tail end connection is connected in parallel entering water electromagnetic valve (5) DC-DC (21) and relay (22) positive pole, connects MCU (20) I/O port with the linear formula of signal;
Relay (22) exports and connects the input of Wastewater by Electric magnet valve (16) power supply;
TDS pops one's head in (9) pressure probe (14) with data wire form connection MCU (20) I/O port;
Flow-limiting valve (15) is connected to separately reverse osmosis membrane (7) waste water side, by manual adjustment flow-limiting valve (15) parameter, namely the mode in flow-limiting valve (15) aperture is regulated tentatively to regulate waste water ratio, product water speed is regulated in conjunction with adjustment reverse osmosis membrane (7) operating pressure mode, regulate reverse osmosis membrane (7) operating pressure mode indirect regulation producing water ratio, wastewater rate, produce water TDS value, nonetheless also make the utility model device obtain far away higher than the producing water ratio of general reverse osmosis water quality treating apparatus; Flow-limiting valve (15) is directly connected in the simplification that reverse osmosis membrane (7) waste water side method is the utility model design, also should include protection domain of the present utility model in.
Embodiment 3
Water intaking valve (1) PP filter core (2) active carbon filter core (3) PP filter core (4) entering water electromagnetic valve (5) booster pump (6) reverse osmosis membrane (7) non-return valve (8) TDS probe (9) rearmounted filter core (10) tap (11) successively head and the tail connects;
Low tension switch (12) is connected to optional position between water intaking valve (1) and entering water electromagnetic valve (5) by threeway;
Before film, pressure switch (13) pressure probe (14) is by threeway connection and position between booster pump (6) and reverse osmosis membrane (7);
Flow-limiting valve (15) Wastewater by Electric magnet valve (16) is connected in series in reverse osmosis membrane (7) waste water side;
The full pressure switch (17) of water is installed on non-return valve (8) and water butt (18) position by threeway;
Connect and compose reverse osmosis water quality treating apparatus Water quality processing system.
Entering water electromagnetic valve (5) booster pump (6) Wastewater by Electric magnet valve (16) negative pole is connected in parallel power supply (19) negative pole;
Relay (22) exports and connects the input of Wastewater by Electric magnet valve (16) power supply;
The output of an other relay (22) connects the input of entering water electromagnetic valve (5) power supply;
TDS pops one's head in (9) pressure probe (14) with data wire form connection MCU (20) I/O port;
Full pressure switch (17) signal form of pressure switch (13) before low tension switch (12), film, water directly connects and is input to MCU (20), relay (22) is directly connected power supply (19) with the input of DC-DC (21) power supply, control entering water electromagnetic valve (5) and Wastewater by Electric magnet valve (16) switch by MCU (20) control relay again, and make DC-DC (21) perform voltage regulation function.This embodiment shortcoming is when MCU (20) lost efficacy, and device can not run as general reverse osmosis water quality treating apparatus.In preferred embodiment 1, under MCU (20) failure conditions, all right self-sustaining operation of device, and water is completely shut down, and can not produce equipment not halting problem under MCU (20) out-of-control condition.
Embodiment 4
Water intaking valve (1) PP filter core (2) active carbon filter core (3) PP filter core (4) entering water electromagnetic valve (5) booster pump (6) reverse osmosis membrane (7) non-return valve (8) TDS probe (9) rearmounted filter core (10) tap (11) successively head and the tail connects;
Low tension switch (12) is connected to optional position between water intaking valve (1) and entering water electromagnetic valve (5) by threeway;
Flow-limiting valve (15) Wastewater by Electric magnet valve (16) is connected in series in reverse osmosis membrane (7) waste water side;
The full pressure switch (17) of water is installed on non-return valve (8) and water butt (18) position by threeway;
Connect and compose reverse osmosis water quality treating apparatus Water quality processing system.
In Fig. 2
Entering water electromagnetic valve (5) booster pump (6) Wastewater by Electric magnet valve (16) negative pole is connected in parallel power supply (19) negative pole;
Full pressure switch (17) series connection of pressure switch (13) water before low tension switch (12) film, head end connects positive source, tail end connection is connected in parallel entering water electromagnetic valve (5) DC-DC (21) and relay (22) positive pole, connects MCU (20) I/O port with the linear formula of signal;
Relay (22) exports and connects the input of Wastewater by Electric magnet valve (16) power supply;
TDS pops one's head in (9) pressure probe (14) with data wire form connection MCU (20) I/O port;
MCU (20) exports with reference voltage signal form control DC-DC (21) voltage, with the break-make of digital signal pulses frequency form control relay (22);
MCU (20) inside also needs the program with device technique flow path match, and the product water program of routine, as start is rinsed, and breakdown judge, fault alarm, filter element replacing prompting etc.
Reverse osmosis water quality treating apparatus circuit control system is formed after connecting.
The Pascal's law equal everywhere according to airtight container inner fluid pressure, before film, pressure switch (13) pressure probe (14) is connected to reverse osmosis membrane (7) waste water side, before being series at flow-limiting valve (15) or Wastewater by Electric magnet valve (16).It is front that effect is equal to reverse osmosis membrane (7) completely.
Embodiment 5
Water intaking valve (1) PP filter core (2) active carbon filter core (3) PP filter core (4) entering water electromagnetic valve (5) booster pump (6) reverse osmosis membrane (7) non-return valve (8) TDS probe (9) rearmounted filter core (10) tap (11) successively head and the tail connects;
Low tension switch (12) is connected to optional position between water intaking valve (1) and entering water electromagnetic valve (5) by threeway;
Before film, pressure switch (13) pressure probe (14) is by threeway connection and position between booster pump (6) and reverse osmosis membrane (7);
Flow-limiting valve (15) Wastewater by Electric magnet valve (16) is connected in series in reverse osmosis membrane (7) waste water side;
The full pressure switch (17) of water is installed on non-return valve (8) and water butt (18) position by threeway;
Connect and compose reverse osmosis water quality treating apparatus Water quality processing system.
Entering water electromagnetic valve (5) booster pump (6) Wastewater by Electric magnet valve (16) negative pole is connected in parallel power supply (19) negative pole;
Full pressure switch (17) series connection of pressure switch (13) water before low tension switch (12) film, head end connects positive source, tail end connection is connected in parallel entering water electromagnetic valve (5) DC-DC (21) and relay (22) positive pole, connects MCU (20) I/O port with the linear formula of signal;
Relay (22) exports and connects the input of Wastewater by Electric magnet valve (16) power supply;
TDS pops one's head in (9) pressure probe (14) with data wire form connection MCU (20) I/O port;
Reverse osmosis water quality treating apparatus circuit control system is formed after connecting.
It is front to booster pump (6) that reverse osmosis membrane (7) dense water side connects a pipeline, flow-limiting valve is placed between pipeline, or magnetic valve, or pressure maintaining valve, make water form local circulation, reach the object improving reverse osmosis membrane (7) surperficial flow rate of water flow.
The technical staff of the industry should understand; the utility model device is not restricted to the described embodiments; describe in above-described embodiment and description and principle of the present utility model is just described; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications; or simplify, these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (7)
1. a reverse osmosis water quality treating apparatus, comprise water intaking valve (1), PP filter core (2), active carbon filter core (3), PP filter core (4), entering water electromagnetic valve (5), booster pump (6), reverse osmosis membrane (7), non-return valve (8), TDS pops one's head in (9), rearmounted filter core (10), tap (11), low tension switch (12), flow-limiting valve (15), Wastewater by Electric magnet valve (16), the full pressure switch (17) of water, water butt (18), power supply (19), relay (22), it is characterized in that device arranges reverse osmosis membrane (7) operating pressure control system and waste water discharges control system,
Wherein, described reverse osmosis membrane (7) operating pressure control system is primarily of pressure switch (13), pressure probe (14), DC-DC (21), MCU (20), booster pump (6), reverse osmosis membrane (7) composition before entering water electromagnetic valve (5), film; Before film, pressure switch (13), pressure probe (14) detection reverse osmosis membrane (7) run operating pressure signal input MCU (20), MCU (20) is according to the output voltage of pressure signal control DC-DC (21), control the operating pressure of reverse osmosis membrane (7) in the operate power mode controlling booster pump (6), form reverse osmosis membrane (7) the operating pressure control system of pressure feedback mode;
Described waste water discharges control system; Primarily of entering water electromagnetic valve (5), relay (22), MCU (20), flow-limiting valve (15), Wastewater by Electric magnet valve (16) composition; MCU (20) controls the velocity of discharge of waste water by the mode of relay (22) control Wastewater by Electric magnet valve (16) switching frequency; The waste water forming controlled frequency mode discharges control system.
2. reverse osmosis water quality treating apparatus according to claim 1, is characterized in that flow-limiting valve (15), Wastewater by Electric magnet valve (16) is connected in parallel in reverse osmosis membrane (7) waste water side.
3. reverse osmosis water quality treating apparatus according to claim 1, is characterized in that flow-limiting valve (15), Wastewater by Electric magnet valve (16) is connected in series in reverse osmosis membrane (7) waste water side.
4. reverse osmosis water quality treating apparatus according to claim 1 or 2 or 3, before it is characterized in that film, pressure switch (13) and pressure probe (14) are connected between reverse osmosis membrane (7) and booster pump (6).
5. reverse osmosis water quality treating apparatus according to claim 1 or 2 or 3, before it is characterized in that film, pressure switch (13) and pressure probe (14) are connected to reverse osmosis membrane (7) waste water side.
6. reverse osmosis water quality treating apparatus according to claim 1 or 2 or 3, is characterized in that MCU (20) controls former water and reverse osmosis membrane (7) time of contact or wastewater rate or producing water ratio by regulating Wastewater by Electric magnet valve (16) opening and closing Frequency Patterns or produces water TDS value or waste water TDS value.
7. reverse osmosis water quality treating apparatus according to claim 1, is characterized in that flow-limiting valve (15) is connected to separately reverse osmosis membrane (7) waste water side.
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|---|---|---|---|
| CN201520575144.XU CN204841420U (en) | 2015-08-03 | 2015-08-03 | Reverse osmosis water quality processing device |
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| CN201520575144.XU CN204841420U (en) | 2015-08-03 | 2015-08-03 | Reverse osmosis water quality processing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105797587A (en) * | 2016-05-09 | 2016-07-27 | 佛山市云米电器科技有限公司 | Water purifying system and automatic working pressure adjusting method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105797587A (en) * | 2016-05-09 | 2016-07-27 | 佛山市云米电器科技有限公司 | Water purifying system and automatic working pressure adjusting method thereof |
| CN105797587B (en) * | 2016-05-09 | 2020-05-05 | 佛山市云米电器科技有限公司 | Water purification system and automatic working pressure adjusting method thereof |
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Granted publication date: 20151209 Termination date: 20160803 |