CN111411367A - Self-adaptive active oxygen concentration generating device - Google Patents
Self-adaptive active oxygen concentration generating device Download PDFInfo
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- CN111411367A CN111411367A CN202010284727.2A CN202010284727A CN111411367A CN 111411367 A CN111411367 A CN 111411367A CN 202010284727 A CN202010284727 A CN 202010284727A CN 111411367 A CN111411367 A CN 111411367A
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- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 79
- 239000001301 oxygen Substances 0.000 title claims abstract description 79
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 239000003990 capacitor Substances 0.000 claims description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 38
- 238000001514 detection method Methods 0.000 claims description 25
- 230000001105 regulatory effect Effects 0.000 claims description 25
- 239000000523 sample Substances 0.000 claims description 20
- 230000003044 adaptive effect Effects 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 8
- 238000005868 electrolysis reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- -1 oxygen ions Chemical class 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/13—Ozone
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
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- C—CHEMISTRY; METALLURGY
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- C25B15/00—Operating or servicing cells
- C25B15/02—Process control or regulation
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
- C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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Abstract
The invention is suitable for the technical field of active oxygen, and particularly relates to a self-adaptive active oxygen concentration generating device.
Description
Technical Field
The invention belongs to the technical field of active oxygen, and particularly relates to a self-adaptive active oxygen concentration generating device.
Background
The existing active oxygen device in the market mainly adopts a constant-current electrolysis mode to generate active oxygen, but the active oxygen concentration generated by the active oxygen device is different under the same current and different flow rates due to different water quality conductivities, so that the active oxygen concentration is too high or too low under different water quality and different flow rates, and the universality of different occasions cannot be met.
Disclosure of Invention
The invention aims to provide a self-adaptive active oxygen concentration generating device, and aims to solve the problem that the traditional active oxygen device has no universality because the active oxygen concentration is too high or too low under different water qualities and different flow rates.
The first aspect of the embodiment of the invention provides a self-adaptive active oxygen concentration generating device, which comprises a TDS detection module, a solenoid valve module, an electrode module, a main control module and a power supply module;
the power supply module is electrically connected with the TDS detection module, the electromagnetic valve module, the electrode module and the main control module respectively, and the main control module is also electrically connected with the TDS detection module, the electromagnetic valve module and the electrode module respectively;
the TDS detection module is used for detecting a TDS value of current inlet water and feeding the TDS value back to the main control module;
the electromagnetic valve module is used for monitoring the current inflow flow rate;
the main control module is used for determining the current inflow preset electrode current and the preset flow rate according to the preset active oxygen concentration, the current inflow TDS value and the preset active oxygen concentration calculation formula, and respectively outputting a control signal to the electromagnetic valve module and the electrode module so as to regulate and control the current inflow electrode current and the current flow rate to the preset electrode current and the preset flow rate to output the preset active oxygen concentration.
In one embodiment, the TDS detection module includes a TDS probe, signal output circuitry, and signal processing circuitry;
one end of the TDS probe is inserted into the water, the other end of the TDS probe is electrically connected with the signal output circuit and the signal processing circuit respectively, and the signal output circuit and the signal processing circuit are also electrically connected with the main control module and the power supply module respectively;
the signal output circuit is used for correspondingly outputting a detection signal to the TDS probe according to the control signal output by the main control module so that the TDS probe outputs a TDS feedback signal according to the incoming water TDS concentration and the detection signal;
the signal processing circuit is used for receiving the TDS feedback signal and feeding back the TDS feedback signal to the main control module after AD conversion.
In one embodiment, the signal output circuit comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a first electronic switching tube and a second electronic switching tube;
the first end of the first resistor and the first end of the second resistor are connected in common to form a first signal input end of the signal output circuit, the second end of the first resistor is connected with a controlled end of the first electronic switch tube, the output end of the first electronic switch tube is connected to the ground, the input end of the first electronic switch tube, the first end of the third resistor and the first end of the fourth resistor are connected in interconnection, the first end of the fifth resistor and the first end of the sixth resistor are connected in common to form a second signal input end of the signal output circuit, the second end of the fifth resistor is connected with the controlled end of the second electronic switch tube, the output end of the second electronic switch tube is connected to the ground, the input end of the second electronic switch tube, the first end of the seventh resistor and the first end of the eighth resistor are connected in interconnection, and the second end of the second resistor, A second end of the sixth resistor, a second end of the third resistor, and a second end of the seventh resistor are commonly connected to form a power supply end of the signal output circuit, a second end of the fourth resistor is a first signal output end of the signal output circuit, and a second end of the eighth resistor is a second signal output end of the signal output circuit.
In one embodiment, the signal processing circuit comprises a first capacitor, a second capacitor, a third capacitor, a ninth resistor and an operational amplifier;
the first end of the first capacitor and the positive phase input end of the operational amplifier are connected in common to form a signal input end of the signal processing circuit, the inverting input end of the operational amplifier, the output end of the operational amplifier and the first end of the ninth resistor are interconnected, the second end of the ninth resistor and the first end of the third capacitor are connected in common to form a signal output end of the signal processing circuit, the positive power source end of the operational amplifier and the first end of the second capacitor are connected in common to form a power source end of the signal processing circuit, and the second end of the first capacitor, the second end of the second capacitor, the second end of the third capacitor and the negative power source end of the operational amplifier are all grounded.
In one embodiment, the electrode module includes a power output circuit, a first electrode pad, and a second electrode pad;
the power supply output end of the power supply output circuit is electrically connected with the first electrode plate and the second electrode plate respectively;
the power output circuit is used for performing power conversion on the direct-current power supply output by the power module according to the control signal output by the control circuit and outputting voltages with corresponding sizes to the first electrode plate and the second electrode plate.
In one embodiment, the power output circuit comprises a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, a sixteenth resistor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, a first diode, a second diode, a third diode, a first inductor, a comparator and a switching power supply chip;
the first end of the fourth capacitor and the input end of the switching power supply chip are connected in common to form a power supply input end of the power supply output circuit, the second end of the fourth capacitor is connected with the enable end of the switching power supply chip, the switch control end of the switching power supply chip, the cathode of the first diode and the first end of the first inductor are interconnected, the second end of the first inductor, the first end of the tenth resistor and the first end of the fifth capacitor are connected in common to form a power supply output end anode of the power supply output circuit, the second end of the tenth resistor, the first end of the eleventh resistor, the cathode of the second diode and the feedback end of the switching power supply chip are interconnected, the anode of the first diode, the second end of the eleventh resistor, the second end of the fifth capacitor, the first end of the twelfth resistor and the grounding end of the switching power supply chip are all grounded, the second end of the twelfth resistor and the positive input end of the comparator are connected in common to form the negative electrode of the power output end of the power output circuit, an output terminal of the comparator, a first terminal of the sixth capacitance and an anode of the second diode are interconnected, a second terminal of the sixth capacitor, an inverting input terminal of the comparator and a first terminal of the thirteenth resistor are interconnected, a second terminal of the thirteenth resistor, a first terminal of the seventh capacitor, and a first terminal of the fourteenth resistor are interconnected, a second end of the seventh capacitor is grounded, a second end of the fourteenth resistor, a first end of the fifteenth resistor, a first end of the sixteenth resistor and a cathode of the third diode are connected, a second end of the fifteenth resistor is connected with a positive power supply end, a second end of the sixteenth resistor is grounded, and an anode of the third diode is a controlled end of the power output circuit.
In one embodiment, the electrode module further comprises a reverse electrode regulating circuit, a first power input end and a second power input end of the reverse electrode regulating circuit are respectively connected with a positive electrode of a power output end and a negative electrode of the power output end of the power output circuit, a positive electrode of the power output end and a negative electrode of the power output end of the reverse electrode regulating circuit are respectively connected with the first electrode plate and the second electrode plate, and the reverse electrode regulating circuit is further electrically connected with the main control module;
and the inverted pole regulating circuit is used for performing inverted pole treatment on the direct-current power supply output by the power supply output circuit according to the inverted pole control signal output by the main control module.
In one embodiment, the pole-reversing regulating circuit comprises a seventeenth resistor, an eighteenth resistor, a third electronic switch tube, a relay and a fourth diode, wherein the relay comprises a coil and a fling-cut switch;
the first end of the seventeenth resistor is a controlled end of the inverted pole regulating circuit, the second end of the seventeenth resistor, the first end of the eighteenth resistor and the controlled end of the third electronic switching tube are interconnected, the second end of the eighteenth resistor and the output end of the third electronic switching tube are grounded, the input end of the third electronic switching tube, the first end of the coil and the anode of the fourth diode are interconnected, the cathode of the fourth diode and the second end of the coil are connected together to form a power supply end of the inverted pole regulating circuit, the first end of the fling-cut switch and the second end of the fling-cut switch are respectively a first signal input end and a second signal input end of the inverted pole regulating circuit, the third end of the fling-cut switch, the sixth end of the fling-cut switch and the first electrode plate are connected, and the fourth end of the fling-cut switch is connected with the fourth electrode plate, The fifth end of the switching switch is connected with the second electrode plate, the first end and the third end of the switching switch are attracted and the second end and the fourth end of the switching switch are attracted when the relay is electrified, and the first end and the fifth end of the switching switch are attracted and the second end and the sixth end of the switching switch are attracted when the relay is not electrified.
In one embodiment, the adaptive active oxygen concentration generating device further includes a key module to be used for inputting a preset active oxygen concentration value, and the key module is electrically connected to the main control module.
In one embodiment, the adaptive active oxygen concentration generating device further comprises a display module for displaying various parameters of the current inflow water, and the display module is electrically connected with the main control module.
The embodiment of the invention adopts a TDS detection module, a solenoid valve module, an electrode module, a main control module and a power supply module to form the self-adaptive active oxygen concentration generating device, wherein the main control module determines the preset electrode current and the preset flow rate of the current inlet water according to the preset active oxygen concentration, the TDS value of the current inlet water and a preset active oxygen concentration calculation formula, and respectively outputs control signals to the solenoid valve module and the electrode module to regulate the current electrode current and the flow rate of the current inlet water to the preset electrode current and the preset flow rate, so that the preset active oxygen concentration is output, and the current electrode current and the flow rate of the current inlet water are self-adaptively changed under different water qualities and flow rates, so that the active oxygen concentration of the current inlet water reaches the preset active oxygen concentration, thereby meeting the requirements of different occasions and improving the universality of the active oxygen device.
Drawings
Fig. 1 is a schematic structural diagram of a first module of an adaptive active oxygen concentration generating device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second module of the adaptive active oxygen concentration generating device according to the embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a third module of the adaptive active oxygen concentration generating device according to the embodiment of the present invention;
fig. 4 is a schematic circuit diagram of a signal output circuit according to an embodiment of the present invention;
fig. 5 is a schematic circuit diagram of a signal processing circuit according to an embodiment of the present invention;
fig. 6 is a schematic circuit diagram of a power output circuit according to an embodiment of the invention;
fig. 7 is a schematic circuit structure diagram of a reverse polarity regulating circuit according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The embodiment of the invention provides a self-adaptive active oxygen concentration generating device.
As shown in fig. 1, fig. 1 is a schematic diagram of a first module structure of an adaptive active oxygen concentration generating device according to an embodiment of the present invention, in this embodiment, the adaptive active oxygen concentration generating device includes a TDS detecting module 10, a solenoid valve module 20, an electrode module 30, a main control module 40, and a power supply module 50;
the power module 50 is electrically connected with the TDS detection module 10, the solenoid valve module 20, the electrode module 30 and the main control module 40 respectively, and the main control module 40 is also electrically connected with the TDS detection module 10, the solenoid valve module 20 and the electrode module 30 respectively;
the TDS detection module 10 is used for detecting a TDS value of current inlet water and feeding the TDS value back to the main control module 40;
the electromagnetic valve module 20 is used for monitoring the current inflow water flow rate;
and the main control module 40 is configured to determine a preset electrode current and a preset flow rate of the current inflow water according to a preset active oxygen concentration, a TDS value of the current inflow water and a preset active oxygen concentration calculation formula, and output control signals to the solenoid valve module 20 and the electrode module 30 respectively so as to regulate and control the current inflow electrode current and flow rate to the preset electrode current and the preset flow rate and output the preset active oxygen concentration.
In this embodiment, self-adaptation active oxygen concentration generating device can be the active oxygen machine, the water purifier, equipment such as water dispenser, TDS detection module 10 inserts in the intaking and detects the TDS value of current intaking, TDS detection module 10 can be TDS detector or corresponding monitoring assembly, solenoid valve module 20 is used for monitoring and control the velocity of flow of intaking, solenoid valve module 20 can include solenoid valve and the solenoid valve drive assembly that corresponds, in an embodiment, solenoid valve module 20 includes solenoid valve and motor drive module, the solenoid valve sets up in the inlet channel, the solenoid valve, motor drive module and main control module 40 connect gradually, the solenoid valve still with power module 50 electric connection, motor drive module exports motor drive signal to solenoid valve according to main control module 40's control signal, with the valve that changes the solenoid valve, and then change the inflow aperture.
The power module 50 may be a power adapter or a battery pack, and the power module 50 is used for outputting power supply of a corresponding size to each functional module.
The main control module 40 includes a controller and a peripheral Circuit, the controller may be a Central Processing Unit (CPU), or may be other general purpose processors, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic devices, a discrete Gate or transistor logic device, a discrete hardware component, and the like, and the general purpose processor may be a microprocessor or the processor may be any conventional processor, and the like.
The main control module 40 sets up preset active oxygen concentration value according to user control instruction, and when acquiring current intake TDS value and flow rate, calculates preset flow rate and preset electrode current required by current preset active oxygen concentration value according to a preset active oxygen concentration calculation formula, wherein the preset active oxygen concentration calculation formula:
N＝f(TDS，I，Q)；
wherein, N represents the concentration of active oxygen, and TDS represents the TDS value of present intaking, and I represents the electrode current in electrode module 30, and Q represents the inflow velocity of water.
When having confirmed and predetermineeing the velocity of flow and predetermineeing the electrode current, main control module 40 outputs control signal to electrode module 30 and solenoid valve module 20 respectively, in order to change the electrode current of electrode module 30, and the valve aperture of solenoid valve module 20, thereby make the concentration of active oxygen reach and predetermine the concentration, wherein, TDS detection module 10 and solenoid valve module 20 feed back current TDS value and velocity of flow in real time, when the condition of intaking changes, main control module 40 control electrode module 30 and solenoid valve module 20 adjust in real time, in order to guarantee that the concentration of active oxygen of current intaking keeps for predetermineeing the concentration of active oxygen all the time.
According to the embodiment of the invention, the TDS detection module 10, the electromagnetic valve module 20, the electrode module 30, the main control module 40 and the power supply module 50 are adopted to form the self-adaptive active oxygen concentration generating device, the main control module 40 determines the preset electrode current and the preset flow rate of the current inlet water according to the preset active oxygen concentration, the TDS value of the current inlet water and the preset active oxygen concentration calculation formula, and respectively outputs control signals to the electromagnetic valve module 20 and the electrode module 30 so as to regulate and control the electrode current and the flow rate of the current inlet water to the preset electrode current and the preset flow rate, thereby outputting the preset active oxygen concentration, and self-adaptively changing the electrode current and the flow rate of the current inlet water under different water qualities and flow rates so as to enable the active oxygen concentration of the current inlet water to reach the preset active oxygen concentration, thereby meeting the requirements of different occasions and improving the universality of the active oxygen device.
As shown in fig. 2, in one embodiment, TDS detection module 10 includes TDS probe 11, signal output circuit 12, and signal processing circuit 13;
one end of the TDS probe 11 is inserted into the intake water, the other end of the TDS probe 11 is electrically connected with the signal output circuit 12 and the signal processing circuit 13 respectively, and the signal output circuit 12 and the signal processing circuit 13 are also electrically connected with the main control module 40 and the power supply module 50 respectively;
the signal output circuit 12 is configured to output a detection signal to the TDS probe 11 according to the control signal output by the main control module 40, so that the TDS probe 11 outputs a TDS feedback signal according to the incoming water TDS concentration and the detection signal;
and the signal processing circuit 13 is configured to receive the TDS feedback signal, perform AD conversion on the TDS feedback signal, and feed back the TDS feedback signal to the main control module 40.
In this embodiment, TDS probe 11 inserts into water, TDS probe 11 can fix in pipeline inner wall or water inlet department, specific mounted position is not limited, and simultaneously, TDS probe 11 receives signal output circuit 12's detected signal, TDS feedback signal to signal processing circuit 13 that TDS value feedback output is different according to intaking currently simultaneously, so that main control module 40 confirms the TDS value of intaking currently according to the digital feedback signal of signal processing circuit 13 feedback, wherein, signal output circuit 12 can be signal amplification circuit, level inverter circuit or other signal output circuit 12, signal processing circuit 13 can be AD converter or other AD modules, and concrete structure is not limited.
As shown in fig. 4, in an embodiment, the signal output circuit 12 includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a first electronic switch Q1 and a second electronic switch Q2;
the first end of the first resistor R1 and the first end of the second resistor R2 are connected in common to form a first signal input end of the signal output circuit 12, the second end of the first resistor R1 is connected with the controlled end of the first electronic switch tube Q1, the output end of the first electronic switch tube Q1 is grounded, the input end of the first electronic switch tube Q1, the first end of the third resistor R3 and the first end of the fourth resistor R4 are connected in common to form a second signal input end of the signal output circuit 12, the second end of the fifth resistor R5 is connected with the controlled end of the second electronic switch tube Q2, the output end of the second electronic switch tube Q2 is grounded, the input end of the second electronic switch tube Q2, the first end of the seventh resistor R7 and the first end of the eighth resistor R8 are connected in common to form a second signal input end of the signal output circuit 12, the second end of the second resistor R636, the second end of the sixth resistor R6, the first end of the third resistor R73727 and the seventh terminal R3 are connected in common to form a signal output circuit 3612, the second terminal of the fourth resistor R4 is a first signal output terminal of the signal output circuit 12, and the second terminal of the eighth resistor R8 is a second signal output terminal of the signal output circuit 12.
In this embodiment, the TDS probe 11 is connected through a first interface J1, the main control module 40 outputs a specific PWM signal through a second resistor R2 and a sixth resistor R6, the specific PWM signal is subjected to waveform limiting through a first electronic switch Q1 and a second switch, and is output to the first interface J1 and the TDS probe 11, when the PWM signal passes through a liquid to be detected, the TDS feedback signal is output to a first interface J1 and is output to the signal processing circuit 13, the signal processing circuit 13 performs AD conversion on the TDS feedback signal, and outputs a digital feedback signal to the main control module 40, as shown in fig. 5, in an embodiment, the signal processing circuit 13 includes a first capacitor C1, a second capacitor C2, a third capacitor C3, a ninth resistor R9, and an operational amplifier U1;
the first terminal of the first capacitor C1 and the non-inverting input terminal of the operational amplifier U1 are commonly connected to form a signal input terminal of the signal processing circuit 13, the inverting input terminal of the operational amplifier U1, the output terminal of the operational amplifier U1 and the first terminal of the ninth resistor R9 are interconnected, the second terminal of the ninth resistor R9 and the first terminal of the third capacitor C3 are commonly connected to form a signal output terminal of the signal processing circuit 13, the positive power terminal of the operational amplifier U1 and the first terminal of the second capacitor C2 are commonly connected to form a power supply terminal of the signal processing circuit 13, the second terminal of the first capacitor C1, the second terminal of the second capacitor C2 and the second terminal of the third capacitor C3 and the negative power supply terminal of the operational amplifier U1 are all grounded, in this embodiment, the operational amplifier U1 forms a voltage follower, and AD converts the analog TDS feedback signal at the non-inverting input terminal and outputs the analog TDS feedback signal to the.
As shown in fig. 2, in one embodiment, the electrode module 30 includes a power output circuit 33, a first electrode pad 31, and a second electrode pad 32;
a power input end of the power output circuit 33 is a power end of the electrode module 30, and a power output end of the power output circuit 33 is electrically connected with the first electrode plate 31 and the second electrode plate 32 respectively;
and the power output circuit 33 is configured to perform power conversion on the dc power output by the power module 50 according to the control signal output by the control circuit, and output voltages with corresponding magnitudes to the first electrode plate 31 and the second electrode plate 32.
In this embodiment, the power output circuit 33 outputs a voltage signal to the first electrode tab 31 and the second electrode tab 32, so that a voltage difference is formed between the first electrode tab 31 and the second electrode tab 32 and the voltage signal is turned on to start electrolysis, the incoming water is electrolyzed to generate oxygen ions under the action of the first electrode tab 31 and the die electrode tab, the larger the voltage difference between the first electrode tab 31 and the second electrode tab 32 is, the stronger the electrolysis capability is, the more oxygen ions are generated, the higher the active oxygen concentration is, and the power output circuit 33 may be a switching power chip U2 or a buck-boost circuit, etc., which is not particularly limited herein, as shown in fig. 6, in one embodiment, the power output circuit 33 includes a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a sixteenth resistor R16, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, a first diode D1, a first diode D398938, a first inductor 39L, and a first inductor U39891;
a first end of a fourth capacitor C and an input end of the switching power supply chip U are connected in common to form a power supply input end of the power supply output circuit 33, a second end of the fourth capacitor C is connected with an enable end of the switching power supply chip U, a switch control end of the switching power supply chip U, a cathode of a first diode D and a first end of a first inductor 1 are interconnected, a second end of the first inductor 1, a first end of a tenth resistor R and a first end of a fifth capacitor C are connected in common to form a positive electrode of a power supply output end of the power supply output circuit 33, a second end of the tenth resistor R, a first end of an eleventh resistor R, a cathode of a second diode D and a feedback end of the switching power supply chip U are interconnected, an anode of the first diode D, a second end of the eleventh resistor R, a second end of a fifth capacitor C, a first end of the twelfth resistor R and a grounding end of the switching power supply chip U are all grounded, a second end of the twelfth resistor R and a grounding end of the comparator U are connected in common to form a negative electrode of the power supply output end of the power supply output circuit 33, a first end of the comparator U, a first end of the sixth resistor C and a cathode of the comparator C are interconnected, a cathode of the resistor R of the controlled resistor R, a cathode of the resistor R is interconnected to form a negative electrode of the first diode R, a cathode of the resistor R is interconnected to form a cathode of the resistor R, a cathode of the resistor R, a.
In this embodiment, the main control module 40 outputs a control signal to the comparator U3 through the third diode D3, so as to change the voltage of the feedback end of the switching power supply chip U2, wherein the switching power supply chip U2, the first diode D1 and the first inductor L1 form a BUCK circuit, and when detecting that the voltage at the feedback end changes, the switching power supply chip U2 performs corresponding voltage conversion output, and changes the voltage at the output end of the power output circuit 33, so as to change the voltage between the first electrode pad 31 and the second electrode pad 32.
As shown in fig. 3, in an embodiment, the electrode module 30 further includes a reverse electrode adjusting circuit 34, a first power input end and a second power input end of the reverse electrode adjusting circuit 34 are respectively connected to a positive electrode of a power output end and a negative electrode of the power output end of the power output circuit 33, the positive electrode of the power output end and the negative electrode of the power output end of the reverse electrode adjusting circuit 34 are respectively connected to the first electrode plate 31 and the second electrode plate 32, and the reverse electrode adjusting circuit 34 is further electrically connected to the main control module 40;
and the reverse pole regulating circuit 34 is configured to perform reverse pole processing on the dc power output by the power output circuit 33 according to the reverse pole control signal output by the main control module 40.
In this embodiment, in order to prevent the first and second electrode pads 31 and 32 from adsorbing impurities to cause scaling, the main control module 40 further performs polarity inverting control according to a preset time period, that is, polarities of positive and negative electrodes on the first and second electrode pads 31 and 32 are inverted, so as to improve the electrolytic effect of the first and second electrode pads 31 and 32, the polarity inverting regulating circuit 34 may adopt a switch switching circuit, a relay T1, and the like, as shown in fig. 7, in an embodiment, the polarity inverting regulating circuit 34 includes a seventeenth resistor R17, an eighteenth resistor R18, a third electronic switch tube Q3, a relay T1 and a fourth diode D4, and the relay T1 includes a coil and a switch;
the first end of the seventeenth resistor R17 is a controlled end of the reversed pole regulating circuit 34, the second end of the seventeenth resistor R17, the first end of the eighteenth resistor R18 and the controlled end of the third electronic switch tube Q3 are interconnected, the second end of the eighteenth resistor R18 and the output end of the third electronic switch tube Q3 are grounded, the input end of the third electronic switch tube Q3, the first end of the coil and the anode of the fourth diode D4 are interconnected, the cathode of the fourth diode D4 and the second end of the coil are connected together to form a power supply end of the reversed pole regulating circuit 34, the first end and the second end of the fling-cut switch are respectively a first signal input end and a second signal input end of the reversed pole regulating circuit 34, the third end of the fling-cut switch, the sixth end and the first electrode plate of the fling-cut switch are connected, the fourth end of the fling-cut switch, the fifth end and the second electrode plate 32 of the fling-cut switch are connected, the first end and the third end of the fling-cut switch are connected when the relay T1, when the relay T1 is not electrified, the first end and the fifth end of the fling-cut switch are attracted, and the second end and the sixth end of the fling-cut switch are attracted.
In this embodiment, the first electrode sheet 31 is connected to the first end of the second interface J2, the second electrode sheet 32 is connected to the second end of the second interface J2, when the main control module 40 outputs a high level, the third electronic switch tube Q3 is turned on, the coil of the relay T1 is powered on and attracts the switch, the first end and the third end of the switch attract each other, the second end and the fourth end of the switch attract each other, the first electrode sheet 31 and the second electrode sheet 32 are powered on, the first electrode sheet 31 is an anode, the second electrode sheet 32 is a cathode, when the main control module 40 outputs a low level, the second electronic switch tube Q2 is turned off, the relay T1 is not powered on, the first end of the switch contacts with the fifth end, the second end contacts with the sixth end, the first electrode sheet 31 is a cathode, and the second electrode sheet 32 is an anode, thereby implementing reverse polarity control.
As shown in fig. 3, in an embodiment, the adaptive active oxygen concentration generating device further includes a key module 60 to be used for inputting a preset active oxygen concentration value, the key module 60 is electrically connected to the main control module 40, a user can output a required preset active oxygen concentration value through the key module 60, the main control module 40 correspondingly adjusts the current and the flow rate according to the preset active oxygen concentration value and the detected TDS value, so as to enable the active oxygen concentration of the influent water to reach the preset active oxygen concentration value, meanwhile, the adaptive active oxygen concentration generating device further includes a display module 70 for displaying parameters of the current influent water, the display module 70 is electrically connected to the main control module 40, the user can interact with the adaptive active oxygen concentration generating device through the display module 70 and view the parameters of the current influent water, in an embodiment, the key module 60 and the display module 70 can be further configured as a touch module, the specific structure is set according to the requirement.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. A self-adaptive active oxygen concentration generating device is characterized by comprising a TDS detection module, a solenoid valve module, an electrode module, a main control module and a power supply module;
the power supply module is electrically connected with the TDS detection module, the electromagnetic valve module, the electrode module and the main control module respectively, and the main control module is also electrically connected with the TDS detection module, the electromagnetic valve module and the electrode module respectively;
the TDS detection module is used for detecting a TDS value of current inlet water and feeding the TDS value back to the main control module;
the electromagnetic valve module is used for monitoring the current inflow flow rate;
the main control module is used for determining the current inflow preset electrode current and the preset flow rate according to the preset active oxygen concentration, the current inflow TDS value and the preset active oxygen concentration calculation formula, and respectively outputting a control signal to the electromagnetic valve module and the electrode module so as to regulate and control the current inflow electrode current and the current flow rate to the preset electrode current and the preset flow rate to output the preset active oxygen concentration.
2. The adaptive active oxygen concentration generating device according to claim 1, wherein the TDS detection module comprises a TDS probe, a signal output circuit and a signal processing circuit;
one end of the TDS probe is inserted into the water, the other end of the TDS probe is electrically connected with the signal output circuit and the signal processing circuit respectively, and the signal output circuit and the signal processing circuit are also electrically connected with the main control module and the power supply module respectively;
the signal output circuit is used for correspondingly outputting a detection signal to the TDS probe according to the control signal output by the main control module so that the TDS probe outputs a TDS feedback signal according to the incoming water TDS concentration and the detection signal;
the signal processing circuit is used for receiving the TDS feedback signal and feeding back the TDS feedback signal to the main control module after AD conversion.
3. The adaptive active oxygen concentration generating device according to claim 2, wherein the signal output circuit comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a first electronic switching tube and a second electronic switching tube;
the first end of the first resistor and the first end of the second resistor are connected in common to form a first signal input end of the signal output circuit, the second end of the first resistor is connected with a controlled end of the first electronic switch tube, the output end of the first electronic switch tube is connected to the ground, the input end of the first electronic switch tube, the first end of the third resistor and the first end of the fourth resistor are connected in interconnection, the first end of the fifth resistor and the first end of the sixth resistor are connected in common to form a second signal input end of the signal output circuit, the second end of the fifth resistor is connected with the controlled end of the second electronic switch tube, the output end of the second electronic switch tube is connected to the ground, the input end of the second electronic switch tube, the first end of the seventh resistor and the first end of the eighth resistor are connected in interconnection, and the second end of the second resistor, A second end of the sixth resistor, a second end of the third resistor, and a second end of the seventh resistor are commonly connected to form a power supply end of the signal output circuit, a second end of the fourth resistor is a first signal output end of the signal output circuit, and a second end of the eighth resistor is a second signal output end of the signal output circuit.
4. The adaptive active oxygen concentration generating device according to claim 2, wherein the signal processing circuit comprises a first capacitor, a second capacitor, a third capacitor, a ninth resistor and an operational amplifier;
the first end of the first capacitor and the positive phase input end of the operational amplifier are connected in common to form a signal input end of the signal processing circuit, the inverting input end of the operational amplifier, the output end of the operational amplifier and the first end of the ninth resistor are interconnected, the second end of the ninth resistor and the first end of the third capacitor are connected in common to form a signal output end of the signal processing circuit, the positive power source end of the operational amplifier and the first end of the second capacitor are connected in common to form a power source end of the signal processing circuit, and the second end of the first capacitor, the second end of the second capacitor, the second end of the third capacitor and the negative power source end of the operational amplifier are all grounded.
5. The adaptive active oxygen concentration generating device according to claim 1, wherein the electrode module comprises a power output circuit, a first electrode sheet and a second electrode sheet;
the power supply output end of the power supply output circuit is electrically connected with the first electrode plate and the second electrode plate respectively;
the power output circuit is used for performing power conversion on the direct-current power supply output by the power module according to the control signal output by the control circuit and outputting voltages with corresponding sizes to the first electrode plate and the second electrode plate.
6. The adaptive active oxygen concentration generating device according to claim 5, wherein the power output circuit comprises a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, a sixteenth resistor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, a first diode, a second diode, a third diode, a first inductor, a comparator and a switching power chip;
the first end of the fourth capacitor and the input end of the switching power supply chip are connected in common to form a power supply input end of the power supply output circuit, the second end of the fourth capacitor is connected with the enable end of the switching power supply chip, the switch control end of the switching power supply chip, the cathode of the first diode and the first end of the first inductor are interconnected, the second end of the first inductor, the first end of the tenth resistor and the first end of the fifth capacitor are connected in common to form a power supply output end anode of the power supply output circuit, the second end of the tenth resistor, the first end of the eleventh resistor, the cathode of the second diode and the feedback end of the switching power supply chip are interconnected, the anode of the first diode, the second end of the eleventh resistor, the second end of the fifth capacitor, the first end of the twelfth resistor and the grounding end of the switching power supply chip are all grounded, the second end of the twelfth resistor and the positive input end of the comparator are connected in common to form the negative electrode of the power output end of the power output circuit, an output terminal of the comparator, a first terminal of the sixth capacitance and an anode of the second diode are interconnected, a second terminal of the sixth capacitor, an inverting input terminal of the comparator and a first terminal of the thirteenth resistor are interconnected, a second terminal of the thirteenth resistor, a first terminal of the seventh capacitor, and a first terminal of the fourteenth resistor are interconnected, a second end of the seventh capacitor is grounded, a second end of the fourteenth resistor, a first end of the fifteenth resistor, a first end of the sixteenth resistor and a cathode of the third diode are connected, a second end of the fifteenth resistor is connected with a positive power supply end, a second end of the sixteenth resistor is grounded, and an anode of the third diode is a controlled end of the power output circuit.
7. The adaptive active oxygen concentration generating device according to claim 6, wherein the electrode module further comprises a reverse electrode regulating circuit, a first power input end and a second power input end of the reverse electrode regulating circuit are respectively connected with a positive electrode of a power output end and a negative electrode of the power output end of the power output circuit, a positive electrode of the power output end and a negative electrode of the power output end of the reverse electrode regulating circuit are respectively connected with the first electrode plate and the second electrode plate, and the reverse electrode regulating circuit is further electrically connected with the main control module;
and the inverted pole regulating circuit is used for performing inverted pole treatment on the direct-current power supply output by the power supply output circuit according to the inverted pole control signal output by the main control module.
8. The adaptive active oxygen concentration generating device according to claim 7, wherein the reverse pole regulating circuit comprises a seventeenth resistor, an eighteenth resistor, a third electronic switching tube, a relay and a fourth diode, wherein the relay comprises a coil and a switching switch;
the first end of the seventeenth resistor is a controlled end of the inverted pole regulating circuit, the second end of the seventeenth resistor, the first end of the eighteenth resistor and the controlled end of the third electronic switching tube are interconnected, the second end of the eighteenth resistor and the output end of the third electronic switching tube are grounded, the input end of the third electronic switching tube, the first end of the coil and the anode of the fourth diode are interconnected, the cathode of the fourth diode and the second end of the coil are connected together to form a power supply end of the inverted pole regulating circuit, the first end of the fling-cut switch and the second end of the fling-cut switch are respectively a first signal input end and a second signal input end of the inverted pole regulating circuit, the third end of the fling-cut switch, the sixth end of the fling-cut switch and the first electrode plate are connected, and the fourth end of the fling-cut switch is connected with the fourth electrode plate, The fifth end of the switching switch is connected with the second electrode plate, the first end and the third end of the switching switch are attracted and the second end and the fourth end of the switching switch are attracted when the relay is electrified, and the first end and the fifth end of the switching switch are attracted and the second end and the sixth end of the switching switch are attracted when the relay is not electrified.
9. The adaptive active oxygen concentration generating device according to claim 1, further comprising a key module to be used for inputting a preset active oxygen concentration value, wherein the key module is electrically connected to the main control module.
10. The adaptive active oxygen concentration generating device according to claim 1, further comprising a display module for displaying parameters of the current influent water, wherein the display module is electrically connected to the main control module.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114162931A (en) * | 2021-05-21 | 2022-03-11 | 佛山市美的清湖净水设备有限公司 | Water purification system, control method thereof, storage medium, electronic equipment and water purification equipment |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1891981A2 (en) * | 2006-08-25 | 2008-02-27 | Sanyo Electric Co., Ltd. | Air conditioner, air conditioning system, air filtering apparatus and air filtering system |
| KR101125318B1 (en) * | 2011-10-28 | 2012-03-27 | 한국수자원공사 | Apparatus and method for deciding ozone injecting rate in water treatment process |
| CN104834326A (en) * | 2015-04-01 | 2015-08-12 | 深圳市科曼医疗设备有限公司 | Breathing machine oxygen concentration control method, device and system |
| JP2016222967A (en) * | 2015-05-29 | 2016-12-28 | パナソニックＩｐマネジメント株式会社 | Ozone water generator |
| WO2018100354A1 (en) * | 2016-11-29 | 2018-06-07 | Roseland Holdings Limited | Electrochemical cell assembly and method for operation of the same |
| TWM577322U (en) * | 2019-01-07 | 2019-05-01 | 張昭仁 | Magnetized electrolytic sterilization liquid manufacturing system |
| CN109865149A (en) * | 2019-04-23 | 2019-06-11 | 东莞市智桥电器制造有限公司 | A kind of Sterilizing machine using ozone |
| CN110366797A (en) * | 2017-03-06 | 2019-10-22 | 懿华水处理技术有限责任公司 | The implementation of feedback control for the design of improved electro-chemical systems |
| CN110528632A (en) * | 2019-08-23 | 2019-12-03 | 艾欧史密斯(中国)热水器有限公司 | Multi-functional water route and water mixing valve |
| CN212357410U (en) * | 2020-04-13 | 2021-01-15 | 深圳安吉尔饮水产业集团有限公司 | Self-adaptive active oxygen concentration generating device |
-
2020
- 2020-04-13 CN CN202010284727.2A patent/CN111411367A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1891981A2 (en) * | 2006-08-25 | 2008-02-27 | Sanyo Electric Co., Ltd. | Air conditioner, air conditioning system, air filtering apparatus and air filtering system |
| KR101125318B1 (en) * | 2011-10-28 | 2012-03-27 | 한국수자원공사 | Apparatus and method for deciding ozone injecting rate in water treatment process |
| CN104834326A (en) * | 2015-04-01 | 2015-08-12 | 深圳市科曼医疗设备有限公司 | Breathing machine oxygen concentration control method, device and system |
| JP2016222967A (en) * | 2015-05-29 | 2016-12-28 | パナソニックＩｐマネジメント株式会社 | Ozone water generator |
| WO2018100354A1 (en) * | 2016-11-29 | 2018-06-07 | Roseland Holdings Limited | Electrochemical cell assembly and method for operation of the same |
| CN110366797A (en) * | 2017-03-06 | 2019-10-22 | 懿华水处理技术有限责任公司 | The implementation of feedback control for the design of improved electro-chemical systems |
| TWM577322U (en) * | 2019-01-07 | 2019-05-01 | 張昭仁 | Magnetized electrolytic sterilization liquid manufacturing system |
| CN109865149A (en) * | 2019-04-23 | 2019-06-11 | 东莞市智桥电器制造有限公司 | A kind of Sterilizing machine using ozone |
| CN110528632A (en) * | 2019-08-23 | 2019-12-03 | 艾欧史密斯(中国)热水器有限公司 | Multi-functional water route and water mixing valve |
| CN212357410U (en) * | 2020-04-13 | 2021-01-15 | 深圳安吉尔饮水产业集团有限公司 | Self-adaptive active oxygen concentration generating device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114162931A (en) * | 2021-05-21 | 2022-03-11 | 佛山市美的清湖净水设备有限公司 | Water purification system, control method thereof, storage medium, electronic equipment and water purification equipment |
| CN114162931B (en) * | 2021-05-21 | 2023-08-29 | 佛山市美的清湖净水设备有限公司 | Water purification system, control method thereof, storage medium, electronic device and water purification device |
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