CN217377403U - Novel winding coil inductance type electromagnetic water treatment control system and device - Google Patents
Novel winding coil inductance type electromagnetic water treatment control system and device Download PDFInfo
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Abstract
A novel winding coil inductive electromagnetic water treatment control system and a device thereof comprise a power supply module, a pulse generation module, an H-bridge inverter, an electromagnetic energy conversion module, a current detection module, a phase-locked loop phase-locked control module, a PWM (pulse width modulation) generation module and a driving amplification circuit which are sequentially connected; the phase-locked loop phase-locked control module judges the change of the natural frequency of the water body in the water pipe according to the current phase signal collected by the current detection module and automatically adjusts the output frequency so as to change the frequency of the generated alternating electromagnetic field; the phase-locked loop phase-locked control module comprises a phase-locked loop, wherein the phase-locked loop comprises a phase discriminator, a low-pass filter and a voltage-controlled oscillator; the output end of the phase discriminator is electrically connected with the input end of the voltage-controlled oscillator through a low-pass filter; the output signal of the voltage-controlled oscillator is fed back to the input end of the phase discriminator and is subtracted from the input signal of the phase discriminator to realize the dynamic follow-up adjustment of frequency change. The novel water treatment control system has good effect on treatment of factory boiler water, circulating water and other sewage.
Description
Technical Field
The utility model relates to a water treatment control system and device thereof especially relate to a novel winding coil inductance type electromagnetism water treatment control system and device, belong to water treatment facilities control and applied technical field.
Background
The electromagnetic water treatment technology has been widely used in recent years and has safetyConvenient installation and use, energy conservation, environmental protection, obvious water treatment effect and the like. However, the theory of the electromagnetic field water treatment has not been unified by the academic world, and the theory is mainly classified into the following 3 types: each theory is characterized by, but is deficient in the areas of charge accumulation, micromagnetic film theory, and crystallization probability. The water treatment theory of the electromagnetic field which is generally accepted at present is a comprehensive theory which combines the theories. The water molecules are in the usual case groups of water molecules ((H) 2 O) n N-2, 3, 4), water molecules are connected by hydrogen bonds, water clusters and Ca 2+ 、Mg 2+ And carbonate has weak affinity, so that the ions are not easily dissolved in water, thereby easily generating dirt, being easily attached to the inner wall of the pipeline, having hard texture and being difficult to remove.
In the prior art, for example, chinese patent application (publication No. CN101863581A) discloses a physical method treatment device for industrial circulating water, which comprises a water pipe, a water inlet and a water outlet, a media filter connected in series in the water pipe, a lateral water replenishing valve between the media filter and the water inlet, and a lateral sewage drain valve between the media filter and the water outlet; the lateral blowdown valve is provided with a front lateral blowdown valve and a rear lateral blowdown valve, the water replenishing valve, the front blowdown valve and the rear blowdown valve are electromagnetic valves, a cylindrical solenoid coil of the electronic descaling instrument is wound on the outer wall of a water pipeline between the medium filter and the front blowdown electromagnetic valve, the solenoid coil is connected with a host machine of the electronic descaling instrument, a conductivity sensor is arranged in the water pipeline between the solenoid coil and the front blowdown electromagnetic valve and connected with a conductivity real-time analyzer, the conductivity real-time analyzer is provided with five relay switch output ends, a copper/silver ion generator is connected in parallel to the pipeline between the front blowdown electromagnetic valve and the rear blowdown electromagnetic valve, and the five relay switch output ends of the conductivity real-time analyzer are respectively connected with electric contacts of the water replenishing electromagnetic valve, the front blowdown electromagnetic valve, the rear blowdown electromagnetic valve, the copper/silver ion generator and the electronic descaling instrument.
Chinese patent (publication No. CN202898118U) discloses an equal pulse width series resonance type electromagnetic induction water treatment device, which comprises a power frequency alternating current input circuit, an inversion booster circuit for rectification, inversion and isolation, a boosted PWM wave output circuit, an LC filter circuit for filtering output into sine waves, a control circuit for controlling a high-frequency alternating current power supply to generate frequency-adjustable alternating excitation current, a driving circuit for controlling driving inversion by the control circuit, a capacitor C connected with sine wave output and forming a series LC resonance circuit, and a winding coil wound on a water pipe; the inverter booster circuit comprises an inverter circuit 7 and a series resonance booster circuit.
The Chinese patent application (publication number: CN103848533A) discloses a variable frequency water treatment device, which comprises a power supply module, a main pipeline provided with a water inlet and a water outlet, a treatment module and an electromagnetic coil, wherein the power supply module comprises a rectification circuit, a filter circuit, a voltage transformation circuit and a voltage stabilizing circuit, the input end of the rectification circuit is connected with a mains supply power grid, the output end of the rectification circuit is connected with the input end of the filter circuit, and the output end of the filter circuit is connected with the input end of the voltage stabilizing circuit through the voltage transformation circuit. The power supply end of the processing module is connected with the output end of the voltage stabilizing circuit, the output end of the processing module is connected with the electromagnetic coil, and the electromagnetic coil is wound around the outer diameter of the main pipeline.
Chinese patent application (publication number: CN104944670A) discloses a novel sewage treatment device, which comprises a sewage inlet pipeline, a sewage treatment tank and a drainage pipeline, wherein a partition plate is arranged in the middle of the sewage treatment tank and divides the sewage treatment tank into a left treatment chamber and a right treatment chamber, the partition plate is of a hollow cavity structure, a left water inlet is arranged at the lower part of the left side wall of the partition plate, a right water outlet is arranged at the upper part of the right side wall of the partition plate, a stainless steel net frame and a double-layer filter screen are sequentially arranged in the left treatment chamber from top to bottom, a first magnet and a second magnet are further respectively arranged on the right side wall, an activated carbon filter layer and a cation resin exchange filter layer are sequentially arranged in the right treatment chamber from top to bottom, and an ultraviolet generator and a chemical feeding port are further respectively arranged at the top end of the activated carbon filter layer and the cation resin exchange filter layer.
Chinese patent application (publication No. CN105692924A) discloses a water treatment device, which includes a power conversion device, an oscillation circuit device, and a coupling device disposed outside a pipeline, wherein the power conversion device is configured to convert commercial power into a dc power within a preset voltage range, the oscillation circuit device is configured to generate a high-frequency oscillation electrical signal by using the dc power and supply the high-frequency oscillation electrical signal to the coupling device, the coupling device is configured to generate a high-frequency electromagnetic wave according to the high-frequency oscillation electrical signal, and the high-frequency electromagnetic wave is configured to remove scale in the pipeline.
Chinese patent applications (publication nos. CN105884030A, CN105948254A, CN105948374A, and CN105948375A) disclose a sewage treatment apparatus, in which a magnetic field generator is disposed around the sewage treatment apparatus, the magnetic field generator includes a spiral coil, the spiral coil is wound around the sewage treatment apparatus, the spiral coil is connected with a transformer, the transformer is connected with a power supply, an induction end of the magnetic field tester extends into the sewage treatment apparatus, and iron covers are disposed around and at the bottom of the spiral coil. And a weak variable magnetic field is applied to the microorganisms in the sludge area, biochemical reaction, magnetic biological effect and magnetic field force movement are simultaneously carried out in the reaction area, and the living environment of the microorganisms from anaerobic, anoxic and aerobic is provided, so that the degradation of the microorganisms to organic matters is enhanced.
Chinese patent application (publication number: CN108147556A, CN108191012A, CN108191128A) discloses a frequency conversion resonance water treatment system structure, including heat exchanger, cooling tower and water pump, heat exchanger, cooling tower and water pump pass through pipe connection and become the ring pipeline, heat exchanger's water inlet side is equipped with frequency conversion resonance water treatment system, frequency conversion resonance water treatment system includes host computer and coil, the host computer is used for producing frequency modulation signal, the coil twines on the pipeline and is connected with the host computer and is used for sending electromagnetic pulse, the pipeline below of heat exchanger's water outlet side communicates in proper order has first bypass pipeline and second bypass pipeline, first bypass pipeline sets up by heat exchanger, second bypass pipeline sets up by cooling tower, the below of first bypass pipeline and second bypass pipeline all can be dismantled and be connected with transparent storage cup, transparent storage cup top is equipped with filtration membrane, the filtering membrane is obliquely arranged, the lower end of the filtering membrane is connected with the inner wall of the downstream side pipeline of the transparent containing cup, and the upper end of the filtering membrane is connected with the inner wall of the pipeline right above the transparent containing cup.
Chinese patent application (publication No. CN108317776A) discloses a self-cleaning condenser, which comprises a housing, wherein two ends of the housing are respectively connected with a sealing head through flanges, one end of the sealing head is provided with a liquid inlet pipe, the other end of the sealing head is provided with a liquid outlet pipe, an air inlet pipe and an air outlet pipe are respectively connected with the upper part and the lower part of the housing, a plurality of uniformly arranged tubes are arranged in the housing, the housing is externally provided with a variable frequency resonance water treatment system, the variable frequency resonance water treatment system comprises a coil and a host machine, the host machine is used for generating electromagnetic pulses with different frequencies and sending the electromagnetic pulses to the coil, the coil is wound outside the housing and electrically connected with the host machine, and the host machine is fixed on the housing through a bracket.
Chinese patent application (publication number: CN108383248A) discloses an alternating electromagnetic field water treatment device based on a closed permalloy magnetic circuit structure, which comprises a closed permalloy magnetic circuit, an exciting coil and a random attenuation high-frequency electric signal generating circuit, and is characterized in that: the random attenuation high-frequency signal generating circuit is connected with a closed permalloy magnetic circuit through an exciting coil, the closed permalloy magnetic circuit is formed by splicing a plurality of strip-shaped ferrite magnetic cores or two semicircular ferrite magnetic cores on the same plane to form a nearly circular or round shape, two ends of any one strip-shaped ferrite magnetic core are provided with a notch in a cutting mode, the notch is respectively and rotatably connected with the adjacent strip-shaped ferrite magnetic cores through non-magnetic hexagonal screws or polytetrafluoroethylene or bakelite rods, and the exciting coil is wound on the outer side of the strip-shaped ferrite magnetic cores.
Chinese patent (publication number: CN202808452U) discloses a water treatment system for circulating water, which comprises a water treatment device, a water pump, a metal pipe and a water tank, wherein the water tank is respectively connected with the water pump and the water treatment device through the metal pipe; the water treatment device comprises an electromagnetic field emitter and two groups of wire winding coils, wherein the electromagnetic field emitter is used for generating a variable-frequency direct-current pulse electromagnetic field, the electromagnetic field emitter is provided with a direct-current output end, the direct-current output end is connected with the wire winding coils, and the wire winding coils are wound on a metal pipe.
Chinese patent (publication number: CN212894124U) discloses a coil winding structure for an electronic descaling pipeline, which belongs to the technical field of electromagnetic water treatment and comprises a support frame, wherein a first limiting plate and a second limiting plate which are oppositely arranged are arranged on the support frame, and a first track and a second track are respectively arranged on the first limiting plate and the second limiting plate; a pipe body penetrates between the first limiting plate and the second limiting plate, a sleeve is sleeved on the outer surface of the pipe body, a first coil positioning groove is wound on the outer surface of the sleeve, a first rocker and a second rocker are respectively arranged on two end faces of the sleeve, the first rocker can rotate along an arc-shaped first track, and the second rocker can rotate along a second track; the support frame is also provided with a coil cylinder, and the outer surface of the coil cylinder is wound with second coil positioning grooves which are spirally distributed.
Chinese patent (publication No. CN206183049U) discloses an electrified coil antiscaling device and a scale-proof water dispenser applied to a water dispenser, comprising: the power supply end of the water dispenser is connected with the power supply end of the direct-current stabilized power supply module, the power supply end of the direct-current stabilized power supply module is connected with the power supply end of the DSP, the signal output end of the DSP is connected with the signal input end of the integrating circuit, the signal output end of the integrating circuit is connected with the signal input end of the frequency sweeping signal circuit, the signal output end of the frequency sweeping signal circuit is connected with the signal input end of the power amplifying circuit, the power signal end of the DSP is connected with the signal receiving end of the power amplifying circuit, and the signal output end of the power amplifying circuit is connected with the coil of the water dispenser.
Although the prior art carries out water treatment by an electromagnetic device, the electromagnetic control system for water treatment can only output a single fixed frequency, so that the optimal electromagnetic field frequency cannot be adjusted and output, or a control circuit is designed, but the designed circuit has the defects of complexity, relatively poor stability and reliability and the like.
SUMMERY OF THE UTILITY MODEL
In order to solve the defect among the prior art, the utility model provides a novel winding coil inductance type electromagnetism water treatment control system, this system can be according to external water environment's change real-time output electromagnetic field, handles through the electromagnetic energy, makes the structure and the motion situation of the dirt ion in the water service pipeline and hydrone change, makes the dirt ion condense into the crystal and separates out to reach water treatment's purpose, its technical scheme is as follows:
a novel winding coil inductive electromagnetic water treatment control system comprises a power supply module, a pulse generation module, an H-bridge inverter, an electromagnetic energy conversion module, a current detection module, a phase-locked loop phase-locked control module, a PWM (pulse width modulation) generation module and a driving amplification circuit which are sequentially connected; it is characterized in that: the phase-locked loop phase-locked control module judges the change of the natural frequency of the water body in the water pipe according to the current phase signal acquired by the current detection module and automatically adjusts the output frequency so as to change the frequency of the generated alternating electromagnetic field; the phase-locked loop phase-locked control module comprises a phase-locked loop, wherein the phase-locked loop comprises a phase discriminator, a low-pass filter and a voltage-controlled oscillator; the output end of the phase discriminator is electrically connected with the input end of the voltage-controlled oscillator through a low-pass filter; and the output signal of the voltage-controlled oscillator is fed back to the input end of the phase discriminator and is subtracted from the input signal of the phase discriminator to realize the dynamic follow-up adjustment of frequency change.
Preferably: the output end of the current detection module is connected with the input end of the phase-locked control module of the phase-locked loop; the output end of the phase-locked loop phase-locked control module generates a PWM driving signal through a PWM generating module; the PWM driving signal generated by the PWM generating module is amplified by the driving amplifying circuit and then transmitted to the pulse generating module to control the switching tubes in the H-bridge inverter to be orderly conducted so as to generate high-frequency bipolar pulses for resonance; the high-frequency bipolar pulse acts on the electromagnetic energy conversion module to generate a high-frequency oscillation electromagnetic field, and electromagnetic energy is transmitted to the water body to be treated through the electromagnetic energy converter.
Preferably: the electromagnetic energy conversion module comprises a resonance inductor and a resonance capacitor which are connected in series.
Preferably: the current detection module comprises a Hall sensor, a low-voltage filter and a zero-crossing comparator; the Hall sensor collects current on the resonant inductor and generates a square wave signal which can be identified by the phase-locked control module of the phase-locked loop through the low-voltage filter and the zero-crossing comparator.
Preferably: the power supply module converts the input commercial power into low-voltage direct-current voltage which can be used for inputting the pulse generation module.
Preferably: the power module comprises a mains supply 220V, an air switch, a quick recoverable protective tube, a single-phase isolation transformer, a full-bridge rectifier and a filter circuit which are sequentially connected.
Preferably, the following components are used: the circuit structure in the H-bridge inverter comprises switching devices of MOSFETs Q1, Q2, Q3 and Q4; wherein: the Q1 and Q4, Q2 and Q3 switch tubes are alternately conducted in a complementary way.
The utility model discloses still disclose a winding coil formula electromagnetism water treatment facilities, characterized in that: the water pipeline comprises a water pipeline and the novel winding coil inductive electromagnetic water treatment control system; and a coil is wound on the water pipeline to form a resonant inductor.
Advantageous effects
The utility model discloses a phase-locked control of phase-locked loop can be along with the situation of change of water in the water service pipeline, constantly adjusts and exports the optimal electromagnetic field frequency, to the water of different environment for example the processing of sewage such as circulating water, boiler water, all has good adaptability.
And devices such as an air switch, a quick recoverable protective tube, a single-phase isolation transformer and the like are added in the power module to realize the safety of system power utilization.
The current detection module does not adopt the traditional resistance sampling, but adopts a Hall sensor, a low-voltage filter and a zero-crossing comparator to output a square wave signal which can be identified by the phase-locked loop phase-locked control module, so that the reliability of the square wave signal is improved.
Drawings
FIG. 1 is a schematic view of a winding coil inductive electromagnetic water treatment control system of the present invention;
FIG. 2 is a schematic diagram of an H-bridge inverter circuit according to the present invention;
fig. 3 is a schematic flow chart of the two complementary PWM signals generated from the current sampling circuit to the pulse generating module according to the present invention;
fig. 4 is a block diagram of a structure based on a phase-locked loop in the frequency tracking control circuit of the present invention;
fig. 5 is a schematic view of the winding coil inductance type electromagnetic water treatment device of the present invention.
Detailed Description
We first look at a prior art: the Chinese patent application (publication number: CN102838214A) discloses a coil winding type electronic induction water treatment circuit, which comprises a signal processor, a high-frequency signal generating circuit, a driving signal amplifying circuit, a pulse generating module and a current detecting module which are connected in sequence; the output end of the current detection module is connected with the input end of the signal processor; the high-frequency signal generating circuit is a signal source generating circuit, generates a driving signal and transmits the driving signal to the driving signal amplifying circuit; the driving signal amplifying circuit amplifies the driving signal from the high-frequency signal generating circuit, and transmits the driving signal to the switch grid of the pulse generating module MOSFET to control the on and off of the switch.
Although the prior art also adopts the coil winding type electronic induction water treatment circuit and tracks the oscillation frequency to realize the treatment of water quality, the adopted technical scheme does not adopt a phase-locked loop to realize the frequency locking and does not process the power supply, thereby causing the defects of poor reliability of the power supply, poor response and control of tracking oscillation frequency and the like.
The utility model discloses a novel winding coil inductance type electromagnetic water treatment control system, which comprises a power supply module, a phase-locked loop phase-locked control module, a PWM (pulse-Width modulation) generation module, a driving amplification module, a pulse generation module, an H bridge inverter, an electromagnetic energy conversion module and a current detection module; the power supply module converts the input commercial power into low-voltage direct-current voltage which can be used for the input of the pulse generation module; the output end of the current detection module is electrically connected with the input end of the phase-locked control module of the phase-locked loop; the output end of the phase-locked loop phase-locked control module generates a PWM driving signal through a PWM generating module; the PWM driving signal is amplified by the driving amplification module and then is electrically connected to the pulse generation module to control the switching tubes in the H-bridge inverter to be orderly conducted so as to generate high-frequency bipolar pulses for resonance; the high-frequency bipolar pulse acts on the electromagnetic energy conversion circuit to generate a high-frequency oscillation electromagnetic field, and the electromagnetic energy is transmitted to the water body to be treated through the electromagnetic energy conversion circuit. See the figure2, circuit structure in H-bridge inverter, wherein: v in The direct current voltage is obtained by transforming, rectifying, reducing and filtering the mains supply through a single-phase transformer; lr is a resonant inductor, Cr is a resonant capacitor, and Q1, Q2, Q3 and Q4 are switching device MOSFETs; q1 and Q4, Q2 and Q3 switch tubes are alternately and complementarily conducted, and when Q1 and Q4 are simultaneously conducted, the voltage V between two points A, B AB ＝V in When Q2 and Q3 are simultaneously on, V AB ＝-V in So that the voltage V between points AB AB Is an amplitude of V in Square wave voltage with 50% pulse width.
The electromagnetic energy conversion module comprises a resonant inductor and a resonant capacitor which are connected in series, the pulse generation module forms a high-frequency oscillating electromagnetic field through the resonant capacitor and a coil inductor wound on the pipeline, the electromagnetic energy conversion module can effectively transfer the electromagnetic field energy to the water body in the pipeline, and the purpose of water treatment is achieved under the action of the electromagnetic field energy.
The current detection module comprises a Hall sensor and a signal conditioning and amplifying circuit; the change of the current phase reflects the change direction of the natural frequency of the water body to be treated, so that the change condition of the water body in the water pipeline can be monitored through the current detection module; the Hall sensor collects the resonant inductive current and generates a square wave signal which can be identified by the frequency automatic tracking controller through the signal conditioning and amplifying circuit, and the phase of the square wave signal is kept unchanged. Further, referring to fig. 3, since the continuous change of the water is reflected on the continuous change of the inductance, the current detection module can detect the change of the inductive current, and input the detected current signal into the phase-locked loop, output the square wave signal having the same phase as the current signal, form two complementary PWM signals through the inverter circuit and the local circuit, and the two complementary PWM signals are transmitted to the driving amplifier circuit, and the pulse generation module is used to turn on and off the switching tube in the H-bridge inverter.
For example, the current detection module inputs the real-time detected current signal of the inductance coil loop into the phase-locked loop control module, and the phase-locked loop control module performs frequency negative feedback control on the frequency of the resonant source according to the principle that the phases of current and voltage are equal in the resonant state: if the difference between the signal frequency of the signal generating circuit and the resonance frequency is calculated to be zero, the impedance of the coil winding type electromagnetic water treatment main circuit (comprising an H-bridge inverter and an electromagnetic energy conversion module) is a pure resistor, and in the state, the current phase of the main circuit is equal to the voltage phase, and at the moment, the main circuit is in a resonance state; if the main circuit is in a non-resonance state, the phase difference between the current and the voltage of the main circuit is inevitable, so that the state of the main circuit for tracking the resonance frequency can be completed according to the control of the phase difference between the current and the voltage.
The frequency tracking control of the invention is realized based on the frequency tracking technology of the phase-locked loop, as shown in fig. 4, the phase-locked loop is composed of a phase discriminator, a low-pass filter and a voltage-controlled oscillator. Phase discriminator output U d Is the input voltage U of the phase discriminator 1 And phase discriminator output voltage U 0 Function of phase difference:
U d ＝K d Δθ (1)
wherein, K d Is the phase discrimination sensitivity.
A low-pass filter: and filtering the high-frequency signal output by the phase discriminator and transmitting the low-frequency signal output by the phase discriminator.
A voltage-controlled oscillator: its oscillation frequency and control voltage U c The relationship of (t) is a linear relationship, i.e.:
ω 0 (t)＝ω r +K ω U c (t) (2)
wherein, ω is 0 (t) is the instantaneous angular frequency of the voltage-controlled oscillation, ω r Is the free-running angular frequency, K, of a voltage-controlled oscillator ω Is a voltage controlled sensitivity.
The phase locking function of the phase-locked loop is that the coil winding type electromagnetic water treatment control system completes electromagnetic frequency negative feedback. The phase-locked loop is a closed-loop system taking the phase difference between an input signal and an output signal as a control object, and the frequency of the output signal is adjusted in real time by setting negative feedback by taking the phase difference between the output signal and the input signal as a reference so as to realize that the phases of the output signal and the input signal are always equal.
The phase-locked loop integrated chip adopted by the phase-locked loop phase-locked control module can be as follows: the detection signal of the coil current is connected to the input interface of the phase-locked loop, and the output signal of the phase-locked loop is used as the driving signal of the main circuit switching device, so that the voltage phase output by inversion and the current phase of the coil loop can be always kept consistent, and the circuit is in a resonance state in real time. In the embodiment, a 4 th pin outgoing signal sig2 in a CD4046 chip is used as an output signal, an input signal sig1 is connected with a 14 pin, a 4 pin of an output signal of a voltage-controlled oscillator is connected with a 3 pin of an input end of a PD2, and as long as the frequency of the input signal sig1 is within the capture frequency range of a phase-locked loop, the frequency tracking input signal sig1 of the 4 pin output signal sig2 and the frequency tracking input signal sig1 of the 14 pin are synchronized in real time. The input signal is a current detection module signal, the output signal is a PWM generation module signal, and when the frequency of the input signal is equal to that of the output signal, the main circuit is locked in a resonance state in real time.
The frequency range of the output signal of the CD4046 chip meets the following requirements:
10kΩ≤R 1 ≤1MΩ，
10kΩ≤R 2 ≤1MΩ，
wherein: c is not more than 100pF 1 ≤0.01uF
C 0 Is parasitic capacitance of the CD4046 chip, and the calculation frequency range generally takes 32 pF; assuming that the operating frequency range of the coil winding type electromagnetic water treatment device is 20kHz to 200kHz, in order to enable the frequency range of the output signal of the CD4046 to meet the design requirement, the C1 takes 468pF, the R2 takes 200k Ω, and the R1 takes 10k Ω, it can be obtained:
the utility model can analyze the change of the current in the coil inductor L wound on the water pipe body according to the change of the external water body environment, and adjust and output the PWM wave with the optimal frequency in time; PWM waves drive 4 switching tubes to be sequentially conducted through a driving amplifying circuit, formed bipolar pulses are fed into an L series resonance circuit formed by a resonance capacitor C, a coil and a pipeline, and the pipeline and water jointly form a magnetic medium of a resonance inductor L; when the frequency of the bipolar pulse is proper, an electromagnetic field which changes in a high-frequency and sine rule manner is generated in the coil inductor L, the change of a magnetic medium is monitored by a frequency automatic tracking system, and under the condition of water body resonance, a signal processing circuit can output a driving signal with the optimal frequency in real time according to the change of the magnetic medium, so that a resonant electromagnetic field with the maximum strength is generated in the coil, dirt to be separated out on the inner wall of the pipeline is converted into a large number of aragonite crystal nuclei, the aragonite crystals are favorably formed and flocculent in liquid and are smoothly discharged along with the liquid in the pipeline, and the aim of water treatment is fulfilled.
The utility model discloses a phase-locked loop phase-locked control can be along with the situation of change of water in the water pipeline, constantly adjusts and exports the optimal electromagnetic field frequency, has good adaptability to the water of different environment.
The utility model discloses increase devices such as air switch, quick retrieval protective tube, single-phase isolation transformer in power module and realize the safety to the system power consumption.
The utility model discloses do not adopt traditional resistance sampling at the current detection module, but adopt hall sensor, low voltage filter and zero crossing comparator output can be locked the square wave signal of phase-locked control module discernment of phase ring, increased the square wave signal reliability.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A novel wound coil inductive electromagnetic water treatment control system comprises a power supply module, a pulse generation module, an H bridge inverter, an electromagnetic energy conversion module, a current detection module, a phase-locked loop phase-locked control module, a PWM (pulse width modulation) generation module and a driving amplification circuit which are sequentially connected;
it is characterized in that: the power module comprises a mains supply 220V, an air switch, a quick recoverable protective tube, a single-phase isolation transformer, a full-bridge rectifier and a filter circuit which are connected in sequence; the phase-locked loop phase-locked control module judges the change of the natural frequency of the water body in the water pipeline according to the current phase signal collected by the current detection module and automatically adjusts the output frequency so as to change the frequency of the generated alternating electromagnetic field; the phase-locked loop phase-locked control module comprises a phase-locked loop, wherein the phase-locked loop comprises a phase discriminator, a low-pass filter and a voltage-controlled oscillator; the output end of the phase discriminator is electrically connected with the input end of the voltage-controlled oscillator through a low-pass filter; and the output signal of the voltage-controlled oscillator is fed back to the input end of the phase discriminator and is subtracted from the input signal of the phase discriminator to realize dynamic follow-up adjustment of frequency change.
2. The new wound coil inductive electromagnetic water treatment control system as claimed in claim 1 wherein: the output end of the current detection module is connected with the input end of the phase-locked control module of the phase-locked loop; the output end of the phase-locked loop phase-locked control module generates a PWM driving signal through a PWM generating module; the PWM driving signal generated by the PWM generating module is amplified by the driving amplifying circuit and then transmitted to the pulse generating module to control the switching tubes in the H-bridge inverter to be orderly conducted so as to generate high-frequency bipolar pulses for resonance; the high-frequency bipolar pulse acts on the electromagnetic energy conversion module to generate a high-frequency oscillation electromagnetic field, and electromagnetic energy is transmitted to the water body to be treated through the electromagnetic energy converter.
3. The new wound coil inductive electromagnetic water treatment control system as claimed in claim 2 wherein: the electromagnetic energy conversion module comprises a resonance inductor and a resonance capacitor which are connected in series.
4. The new wound coil inductive electromagnetic water treatment control system as claimed in claim 1 wherein: the current detection module comprises a Hall sensor, a low-voltage filter and a zero-crossing comparator; the Hall sensor collects current on the resonant inductor and generates a square wave signal which can be identified by the phase-locked control module of the phase-locked loop through the low-voltage filter and the zero-crossing comparator.
5. The new wound coil inductive electromagnetic water treatment control system as claimed in claim 1 wherein: the power supply module converts the input commercial power into low-voltage direct-current voltage which can be used for inputting the pulse generation module.
6. The new wound coil inductive electromagnetic water treatment control system as claimed in claim 1 wherein: the circuit structure in the H-bridge inverter comprises switching devices including MOSFETs Q1, Q2, Q3 and Q4; wherein: the Q1 and Q4, Q2 and Q3 switch tubes are alternately conducted in a complementary way.
7. A wound coil type electromagnetic water treatment device is characterized in that: the novel winding coil induction type electromagnetic water treatment control system comprises a water pipeline and a novel winding coil induction type electromagnetic water treatment control system as claimed in any one of claims 1 to 6; and a coil is wound on the water pipeline to form a resonant inductor.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116425278A (en) * | 2023-05-17 | 2023-07-14 | 广东骏丰频谱股份有限公司 | Spectrum purified water control system and method |
| CN116667788A (en) * | 2023-07-28 | 2023-08-29 | 瑞纳智能设备股份有限公司 | Oscillating circuit and adjusting method thereof and water processor |
| CN117228799A (en) * | 2023-11-08 | 2023-12-15 | 上海莫秋环境技术有限公司 | Magnetoelectric cooperative control system for water treatment |
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2022
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116425278A (en) * | 2023-05-17 | 2023-07-14 | 广东骏丰频谱股份有限公司 | Spectrum purified water control system and method |
| CN116667788A (en) * | 2023-07-28 | 2023-08-29 | 瑞纳智能设备股份有限公司 | Oscillating circuit and adjusting method thereof and water processor |
| CN116667788B (en) * | 2023-07-28 | 2023-10-31 | 瑞纳智能设备股份有限公司 | Oscillating circuit and adjusting method thereof and water processor |
| CN117228799A (en) * | 2023-11-08 | 2023-12-15 | 上海莫秋环境技术有限公司 | Magnetoelectric cooperative control system for water treatment |
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