CN104105328A - Large-air-volume low-voltage efficient plasma device and air-handling system thereof - Google Patents
Large-air-volume low-voltage efficient plasma device and air-handling system thereof Download PDFInfo
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- CN104105328A CN104105328A CN201410340783.8A CN201410340783A CN104105328A CN 104105328 A CN104105328 A CN 104105328A CN 201410340783 A CN201410340783 A CN 201410340783A CN 104105328 A CN104105328 A CN 104105328A
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Abstract
The invention discloses a large-air-volume low-voltage efficient plasma device and an air-handling system thereof. A controllable servo power supply is used for outputting direct current. A square wave power amplifier is respectively connected to the controllable servo power supply and a controllable square wave oscillator and used for generating alternating current square wave signals to be output according to signals output by the square wave power amplifier by utilizing direct current output by the controllable servo power supply. The input end of a simulator is in series connection with a choke flow inductor and then is connected between two output points of the square wave power amplifier in series, the output end of the simulator is connected with an ionic tube and used for converting alternating current square wave signals output by the square wave power amplifier into sine wave signals to be input to the ionic tube. An ionic device and the air-handling system produce about 21-30kHz sine wave signals to be input to the ionic tube, and the required working voltage is an effective value 1600V. The large-air-volume low-voltage efficient plasma device and the air-handling system have the advantages of being efficient in structure, low in energy consumption, low in maintenance cost, long in service life, convenient to use, safe, wide in application range and the like.
Description
Technical field
The present invention relates to plasma air processor equipment and air system that a kind of ionization technique is removed pernicious gas, deodorizing and killed virus and bacterium in air.
Background technology
Along with improving constantly and the puzzlement of environmental pollution to the mankind of people's living standard, particularly the continuous viral influenza occurring is popular, and people are to the requirement of IAQ and need increasingly important.Existing air purifying process main purpose is smoke abatement, TVOC(Total Volatile Organic Compounds, total volatile organism), sterilization, sterilization and deodorizing.According to operation principle, can be divided into HEPA (High efficiency particulate air Filter, highly effective particle air cleaner) technology, UV(Ultraviolet Rays, ultraviolet ray) purification techniques, needle point electric discharge ionization technique, dust arrester purification techniques and plasma ionization technique etc.
HEPA highly effective particle air cleaner is a kind of pleated filter, verifiedly can effectively catch 99.97% 0.3 micron or above particle.Its advantage is to pack central air conditioner system into, or uses as split air conditioner, but it can not process pollutant sources, can only filter the contaminated air that enters a region, and invalid to a lot of mushroom spores, bacterium and virus.In addition, packed into central air conditioner system and can limit Air Flow, increase energy cost, need to surely change filter, maintenance cost is high.
The air sterillization that UV UV purification technology is is process by ultraviolet ray.UV purifier can pack central HVAC system into, or uses as split air conditioner.But ultraviolet ray can only be processed the pollutant that directly passes light source, do not affect the air that does not pass light source around; The pollutant in light region is depended in ultraviolet ray, and irradiation time should enough be handled pollutant well; Ultraviolet ray is harmful; Some anti-ultraviolet composition (as aspergillus niger) is not had to effect; Pack purifier into center system and can limit Air Flow; Need to regularly replace bulb, maintenance cost is high.
Needle point electric discharge ionization purification techniques is that one pole should be used wall or near surface as the opposite polarity needing by manufacturing one pole ionization charmed particle.The particle of energising will be attracted on surface like this, produce " black or dirty metope "; In addition, it is only to device small region around effective (radius 8-9 inch), the energy that generation ion is used is large (25000 ~ 40000 volts), large multipair bacterium, spore and VOC compound are invalid, and uncontrollable cation produces, energy is exported in a large number and can be produced ozone, and easy and wireless device etc. produces and disturb, and can not pack central HVAC system into.
Dust arrester formula purification techniques, its equipment is generally " clavate " mancarried device, and the particle on gathering-device inner metal surface produces one pole ion to the energising of gatherer pallet, can effectively stop bacterium, spore and VOC compound.Its to device around within the scope of several inches effectively, and can produce ozone, can not pack central HVAC system into.
Conventional plasma electric is from purification techniques, and by manufacturing and distributing a certain amount of positive and negative ion, the active state that recovers oxygen molecule is air sterillization.It can control cation quantum of output, uses more low-yield (2200 ~ 3000 volts), can effectively prevent bacterium, mycotic spore, VOC compound and particle, can process pollutant sources; Can pack central air conditioner system into or use as split air conditioner, while packing center system into, not limiting Air Flow.
In sum, although conventional plasma purification techniques is compared other technologies, there are many advantages, particularly have efficient sterilization and air purification effect.But also there is many deficiencies and shortcoming in conventional plasma purification techniques.Owing to using old technology, ionization voltage has affected its result of use compared with shortcomings such as high, negative ions quantity imbalance, inefficiencies.Improper use also can produce O
3, this is just difficult to realize man-machine symbiosis.Install catalytic reactor additional and can make huge structure and need heating, and very poor to the organic clean-up effect of low concentration Wind Volume, energy consumption is high, and use cost is high.The type of drive of conventional plasma purifier mostly directly adopts and exchanges the 50HZ/220V power supply of directly boosting, ion technology unit's output ionic weight is 100 ~ 1,500,000/cubic centimetre, the negative ions amount that ion device produces is uneven, if general cation 1,000,000/cubic centimetre; Anion only has 30 ~ 500,000/cubic centimetre.The high pressure generally using more than 3000V is just effective, and discharge device surface charging is dangerous, mostly uses in industry and municipal field at present.More can not be by product miniaturization, be unfavorable for using in civilian household electrical appliances market widely, make the market value of product be subject to great restriction.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is to provide a kind of Wind Volume low-voltage high-efficiency plasma apparatus and air treatment system, and the operating voltage that its ionic tube provides is the sinusoidal wave mode of undistorted standard high-frequency and high-voltage.
For solving the problems of the technologies described above, technical scheme of the present invention is achieved in that a kind of Wind Volume low-voltage high-efficiency plasma apparatus, and it comprises: can control servo power supply, for exporting direct current; Square wave power amplifier, described in being connected respectively to, servo power supply and the described square-wave oscillator of controlling can be controlled, described in also utilizing according to the described signal of controlling square-wave oscillator output, the direct current generation ac square wave signal output that servo power supply is exported can be controlled; Simulator, after the input serial connection choke induction of described simulator, go here and there again between two output points of described square wave power amplifier, the output termination ionic tube of described simulator, is input to described ionic tube for converting the ac square wave signal of described square wave power amplifier output to sine wave signal.
Further, it is also provided with suspension driver element, be connected to the described square-wave oscillator controlled and described square wave power amplifier, for receiving the described main clock frequency rate that can control square-wave oscillator, and according to described main clock frequency rate production burst sequence to after output to described square wave power amplifier.
Further, it is also provided with automatic phase control unit, and automatic phase control unit includes the shaping unit, the phase error comparator and first that are connected in series successively and controls adapter, wherein, the input of this shaping unit is connected to described simulator output and receives after sine wave signal, generate the square-wave signal with frequency homophase, export described phase error comparator to, this phase error comparator receives respectively the output signal of square-wave signal and described square wave power amplifier and carries out phase demodulation processing, generate and output error signal and output to described first and control adapter, after receiving this error signal, this first control adapter is converted to corresponding direct-current control voltage, direct-current control voltage after high-frequency suppressing is processed as the described control voltage of controlling square-wave oscillator, adjustment in good time can be controlled the main clock frequency rate that square-wave oscillator produces, make the output amplitude of phase error comparator be tending towards 0.
Further, it also comprises the automatic current control unit of series connection successively, and it comprises current acquisition converting unit, and comparator overshoot controller and second is controlled adapter; Wherein, this current acquisition converting unit receives the sinusoidal current of described ionic tube, convert the direct voltage output of this signal amplitude to, the reference signal that described comparator overshoot controller receives respectively this direct voltage and setting compares, output error signal, and this error signal is processed through overshoot, after high-frequency suppressing, become low frequency and control voltage output, described second controls adapter receives this low frequency and controls voltage and can control through the adaptive generation of conversion the control signal that servo power supply can be identified, and exports to and can control SERVO CONTROL power supply.
Further, described simulator is the transformer with less leakage current, and its winding mode is to reduce single groove skeleton of leakage inductance.
Further, described ionic tube is corolla corolla discharge mode plasmatron, it comprises the glass tube of an end closure, unsealed one end is sealed by base, in glass tube, be filled with inert gas, the inside and outside wall of this glass tube is respectively equipped with anode and negative electrode, and described anode makes by the fine aluminium sheet material dislocation of 0.15 ~ 0.5mm thickness the hole that diameter is 1.5 ~ 3.0mm, and is rolled into the cylinder matching with described glass tube inwall.
Further, shaping unit is zero-crossing comparator circuit.
Another kind of technical scheme of the present invention is: the air treatment system with Wind Volume low-voltage high-efficiency plasma apparatus described in a kind of comprising, it also comprises central internal controller and connected sensor assembly and controls interface, Long-distance Control interface, state indication and controllable switch power supply, wherein, after the signal that central authorities' internal controller receiving sensor amplifier transmits, and drive the output port of plasma apparatus to produce the control signal matching with ion device.By the input of Long-distance Control interface feedback command information realization strange land, connect, by controlling interface, realize program selector switch, the keying of reset/run switch, and the information exchange at this control interface is crossed state indicating module and is shown, this central processing unit is realized the control to controllable switch power supply by control bus, realizes controlled AC output, direct current output or the output to ion device port.
Further, described central internal controller includes controller unit and the connected forward and reverse sensor adapter of controlling ion device, forward and reverse sensor adapter feeds back to controller unit by the air information detecting, and controller unit is controlled the output variable of ion device according to this information.
Further, described controller unit also includes control panel, by control panel, selects different control modes, and controller unit is set the priority of forward and reverse sensing adapter.
The technique effect that the present invention reaches is as follows:
1, ion device of the present invention adopts low-voltage DC supply, produce the sine wave signal of frequency 21 ~ 30kHz left and right to ionic tube 9, the operating voltage of ionic tube 9 is adjustable between 800 ~ 1600 V, the positive and negative ion of ionic tube output equal amount, ion quantum of output is that 100 ~ 1,500 ten thousand/cubic centimetre is adjustable, is 10 times of conventional products.Ionic tube surface (being negative electrode) is earth potential, and ionization device is not charged, very safe, can realize man-machine coenecium, compact conformation.Ion and O
3quantum of output can be controlled and select, and has expanded market range of application, can be applied in arbitrarily on household electrical appliance such as air-conditioning, refrigerator, fan.Usable floor area can be from 40 ~ 300m
2, the secondary pollutions such as ozone free.
2, ion device power of the present invention 1.5 ~ 25W scope is adjustable, has realized energy-conservationly, and low-cost maintenance, is particularly combined with and can greatly extends the useful life of active carbon and reduce costs with activated carbon filtration technology.
3. the present invention can process the air of Wind Volume, in central air conditioner system, installs, and processes air mass flow and can reach 300 ~ 28000m
3/ h.Be applicable to airport, large scale business center, building and school, cinema and stadiums.
4. the effective kill virus of ion device of the present invention, and can man-machine coenecium, this device can be used the environment such as Outpatient Hall in hospital, ward, operating room, is beneficial to kill virus and bacterium.
5. ion unit of the present invention is used safety, and can effectively remove static, and Ke textile mills and semi-conductor industry are widely used.
6. ion device of the present invention can effectively low deodorizing and resolving harmful gas, can use widely in the toxic emission of municipal wastewater pipeline, garbage disposal, public lavatory deodorizing and sewage disposal and process.
7. ion device of the present invention has splendid fresh-keeping function, can be used for the food fresh keeping of refrigerator and business refrigerator-freezer.
Accompanying drawing explanation
Fig. 1 is the modular structure schematic diagram of Wind Volume low-voltage high-efficiency plasma apparatus of the present invention;
Fig. 2 is the structural representation of ionic tube of the present invention;
Fig. 3 is the structural representation of air treatment system;
Fig. 4 is the structural representation of controller unit;
Fig. 5 is isoionic fundamental diagram.
Embodiment
As shown in Figure 1, be the modular structure of Wind Volume low-voltage high-efficiency plasma apparatus of the present invention, it comprises: can control servo power supply 1, for exporting direct current; Square wave power amplifier 4, be connected respectively to and described can control servo power supply 1 and the described square-wave oscillator 2 of controlling, for according to controlling the signal of square-wave oscillator 2 outputs and utilize the described direct current that can control servo power supply 1 output to generate ac square wave signal and export; Simulator 6, after the input serial connection choke induction 5 of simulator 6, go here and there again between two output points of described square wave power amplifier 4, the output termination ionic tube 9 of simulator 6, is input to ionic tube 9 for converting the ac square wave signal of square wave power amplifier 4 outputs to sine wave signal.
As shown in Figure 1, by black box technology, load (ionic tube 9) is modeled to an element in circuit by conversion element, in the present embodiment, has twice and boost, be specially:
Voltage resonance once boosts:
Adopt the principle of voltage resonance mode to obtain high pressure, first will drive a capacitor, the electric capacity of input that load (ionic tube 9) is mapped to black box is as artificial capacitor.An external resonant inductance, makes their resonance frequency work in driving frequency.Now, the Q that the voltage that is added in artificial capacitor two ends is input voltage is (quality factor of inductance) doubly, obtain the high pressure once boosting.And the square wave of input is converted to sine wave.
As shown in Figure 1, in artificial capacitor, be connected in series a choke induction 5, make the resonance frequency of choke induction 5 and artificial capacitor within operating frequency range.Choke induction 5 be responsible for to absorb through all high order harmonic components except first-harmonic after Fourier transform simultaneously, makes electric current obtain pure sine wave.According to voltage resonance principle, the power consumption of choke induction 5 and the consumption of artificial capacitor are equal, and the apparent power of choke induction 5 and the apparent power of simulaed inductance equate.Choke induction 5 inductance values of selecting are as the criterion within the scope of 20 ~ 30KHz with resonance frequency; Electric current is as the criterion with the peak value of resonance current; Voltagesecond product (or number of ampere turns) is as the criterion to be greater than 200W apparent power.By voltage resonance, be added in Q times that the voltage in artificial capacitor is driving voltage.In this equipment, adopt the 27V power supply lower than safe voltage, after resonance step-up, reach the sinusoidal voltage of 100V effective value.Voltage resonance can obtain the sinusoidal voltage of THD<1%, and the input signal of voltage resonance can be that symmetrical square wave or the same frequency of a D=0.5 is sinusoidal wave, and evidence square wave and sine wave can reach requirement.
Secondary booster:
As shown in Figure 1, ionic tube 9 and simulator 6 are considered as to a black box, in circuit design, it are used as an element with characteristic parameter and nominal parameter.In this enforcement, the high frequency transformer that simulator 6 is certain specification, simulates ionic tube 9 to former limit as a capacitor with certain static capacity and leakage current by simulator 6.The characteristic parameter of capacitor comprises: static capacity, leakage current and distributed inductance.The present embodiment adopts high frequency transformer that the ionic tube of capacitive 9 is modeled to a low pressure, jumbo capacitor.High frequency transformer and ionic tube 9 are formed to a black box, this part is considered as to a fixed capacity and the capacitor that has certain leakage current.Facilitate circuit working in low-pressure state.And front and back level isolation.
Wherein, distributed inductance is mainly to be produced by simulator 6, the final capacitance that simulator 6 produces is that load capacity and simulator 6 distributed capacitance are according to the comprehensive product of simulation ratio, so in order to allow driving-energy pass to as much as possible load rather than to consume in simulator 6 inside, need the distributed capacitance of simulator 6 and the distributed inductance all must be very little.Because the load end of simulator 6 works in high pressure conditions, so require simulator 6 also should have less leakage current, therefore, when making simulator 6, winding mode is single groove skeleton, to reduce leakage inductance.For reducing interlayer distributed capacitance and turn-to-turn distributed capacitance, selected conductive line surfaces dielectric is first-class (QA), adds the isolation of high strength medium between every one deck.
In the present embodiment, ionic tube 9 is for having the capacitive load of certain leakage current, and when driving capacitive load, the gross power of simulator 6 should be calculated according to the apparent power of capacitive load.The apparent power of load, up to 200W, designs according to 200W when compute simulator 6 transmitted power.Through simulator 6 secondary boosters, obtain the sinusoidal voltage of 1600V.This equipment is through test of many times, and simulation ratio transmission efficiency in the time of 16 times is the highest.
By black box technology, drive main points to become a low-voltage driving circuit from a high tension loop.
As shown in Figure 1, in order to control the output frequency of voltage controlled oscillator, so that drive the clock in loop to work in all the time the resonant frequency point of resonance step-up, between simulator 6 and controlled oscillator processed 2, it is also provided with automatic phase control unit 7, and automatic phase control unit 7 includes the shaping unit 71, the phase error comparator 72 and first that are connected in series successively and controls adapter 73; Wherein, this shaping unit 71 can be zero-crossing comparator, its input is connected to simulator 6 outputs and receives after sine wave signal, generate the square-wave signal with frequency homophase, export phase error comparator 72 to, this phase error comparator 72 receives respectively the output signal of square-wave signal and square wave power amplifier 4 and carries out phase demodulation processing.Phase error comparator 72, need to input two paths of signals, and a road is the square-wave signal producing through shaping unit 71, and a road is the output signal of square wave power amplifier 4.This two paths of signals being carried out in phase error comparator 72 to 90 degree phase demodulations processes.Output error signal.Its logic state is: if two paths of signals phase phasic difference 90 degree, output error signal is 0, if the lag output signal of zero-crossing comparator drives signal 0 ~ 90 degree, output error signal is greater than 0(signal magnitude and depends on lagging phase angle), if the output signal drive of lead signal of zero-crossing comparator 90 ~ 180 degree, output error signal is less than 0(signal magnitude and depends on lagging phase angle).The signal condition of expressing output signal size is one group of positive negative pulse stuffing pair, and when equaling 0, the right time of positive negative pulse stuffing equates, when being greater than 0, positive pulse is longer than the duration of negative pulse, and when being less than 0, positive pulse is shorter than the duration of negative pulse.
Phase error comparator 72 generates and output error signal and output to the first control adapter 73, after receiving this error signal, this first control adapter 73 is converted to corresponding direct-current control voltage, direct-current control voltage after high-frequency suppressing is processed as the described control voltage of controlling square-wave oscillator 2, adjustment in good time can be controlled the main clock frequency rate that square-wave oscillator 2 produces, and makes the output amplitude of phase error comparator 72 be tending towards 0.Automatic phase control unit is a phase feedback controller, by real-time adjustment, makes all the time the clock that can control square-wave oscillator 2 generations equate with the resonance frequency of once boosting.Make the output amplitude of phase error comparator be tending towards 0, reach circuit stable state.
In addition, output amplitude for controlling party wave power amplifier 4, so that the power square-wave signal amplitude that major loop produces is controlled, and then controls the energy that sends black box to, reach the object (ionic tube 9 is to work in " Zener " mode) of controlling ionic tube 9 electric currents.By employing, control the operating state of the mode stabilizing ion pipe 9 of electric current, the isoionic amount of ionic tube 9 output is directly proportional to the product of voltage and current.Due to the inconsistency of external environment and ionic tube 9 parameters on the impact of operating current also much larger than the impact on operating voltage.As shown in Figure 1, ion device of the present invention is at simulator and can control and between SERVO CONTROL power supply 1, be also provided with automatic current control unit and carry out Current Control, the input signal of this automatic current control unit is ionic tube 9 current signals, and output signal is to control the output voltage of servo power supply 1.The output voltage that can control servo power supply 1 is directly proportional to the amplitude of square wave power amplifier 4, has also just controlled square-wave output voltage simultaneously; Automatic current control loop also provides external control port, and the reference signal that input has been set in advance, by regulating the reference signal parameter of this port to reach the output amplitude of controlling whole equipment.
Automatic current control unit, comprises current acquisition converting unit 74, and comparator overshoot controller 75 and second is controlled adapter 76; Wherein, this current acquisition converting unit 74 receives the sinusoidal current of ionic tube 9, converts the direct voltage output of this signal amplitude to, and current acquisition converting unit 74 is conventional Collect conversion circuit, is not described in detail in this.The reference signal that comparator overshoot controller 75 receives respectively this direct voltage and setting compares, output error signal, and this error signal is processed through overshoot, after high-frequency suppressing, become low frequency and control voltage output, second controls adapter 76 receives this low frequency and controls voltage and can control through the adaptive generation of conversion the control signal that servo power supply 1 can be identified, and exports to and can control SERVO CONTROL power supply 1.
As shown in Figure 2, be the structural representation of ionic tube 9 of the present invention, in the present embodiment, ionic tube 99 comprises the discharge medium that a glass tube is made, this glass tube 95 is SiO
2glass tube, its thickness is 0.6 ~ 1mm, one end shutoff of glass tube 95.Inside and outside wall at glass tube 95 is all installed metal electrode, and one is that anode 93, is negative electrode 94.Preferentially, anode 93 is arranged on the inner side of glass tube 95, and negative electrode 94 is arranged on glass tube 95 outsides ground connection, and the negative electrode 94 in outside is not charged like this, can guarantee fail safe.Anode 93 can be by the fine aluminium sheet material of 0.15 ~ 0.5mm thickness, diameter is made in dislocation to be the hole of 1.5 ~ 3.0mm and to be rolled into cylinder with glass tube 95 inwall same diameter and to be installed in glass tube 95 and to make, also can adopt the techniques such as vacuum coating is that the metallic nickel that glass tube 95 inwalls evenly plate 0.05 ~ 0.2mm thickness is made, and can also adopt thickness is that the pure aluminum foil of 0.05 ~ 0.10mm is rolled into the cylinder identical with glass tube inner diameter and is installed in glass tube and makes.Negative electrode 94 can be made into stainless steel cloth by stainless steel wire, and is rolled into cylinder identical with glass tube external diameter and makes, and its inner surface will fully contact with glass tube 95 outer surfaces.Glass tube 95 not one end of shutoff seals by base 92, after vacuumizing, fills the inert gases such as helium or nitrogen with in glass tube 95.Anode 93 is drawn anode connection terminal 1 through base 92.
As shown in Figure 3, for the present invention has the air treatment system of Wind Volume low-voltage high-efficiency plasma apparatus, it also comprises central internal controller and connected sensor assembly and controls interface, Long-distance Control interface, state indication and controllable switch power supply, wherein, after the signal that central authorities' internal controller receiving sensor amplifier transmits, and drive the output port of plasma apparatus to produce the control signal matching with ion device.By the input of Long-distance Control interface feedback command information realization strange land, connect, by controlling interface, realize program selector switch, the keying of reset/run switch, and the information exchange at this control interface is crossed state indicating module and is shown, this central processing unit is realized the control to controllable switch power supply by control bus, realizes controlled AC output, direct current output or the output to ion device port.
Controlled ports agreement is mated with the output port agreement of central internal controller, controlled range comprises: close ion device, regulate ion device to produce isoionic relative populations, control plasma apparatus and produce atom compound (as: peroxide, carbonate, nitrate) relative populations.
As shown in Figure 4, central authorities' internal controller includes controller unit and the connected forward and reverse sensor adapter that connects ion device, forward and reverse sensor adapter feeds back to controller unit by the information detecting, controller unit is controlled the output variable of ion device according to this information, forward and reverse transducer is set by control panel selecting priority.
In controller unit, provide the sensor port of two "or" relations simultaneously, when its control protocol matches with reverse sensor adapter, oppositely the control logic of transducer is, the signal detecting is larger, the output plasma amount of ion device is less, and this port mainly connects peroxide sensor.Control logic: when transducer detects airborne peroxide over calibration value, reduce output variable or the shutdown of ion device.When control protocol and forward sensor adapter match, the control logic of forward transducer is, the signal detecting is larger, the output plasma amount of ion device is larger, and this port mainly connects airborne harmful substance transducer (as TVOC, formaldehyde, ammonia, hydrogen sulfide, micronic dust, carbon dioxide, ozone, peculiar smell etc.).Control logic: when transducer detects airborne harmful substance over calibration value, increase the output variable of ion device.
By control panel, select different control modes, the priority of transducer is set, when described forward transducer has negative right, in Digital Logic mode, work, reverse transducer now will carry out work according to demarcation.When the signal detecting when reverse transducer increases, ion device regulates and reduces according to increment, when the signal that forward transducer detects surpasses calibration value, forces the output variable increase of ion device.This kind of operating state is applicable to the operational environment of inclement condition, as Biohazard Waste Disposal, and sewage treatment plant, chemical plant, the facilities such as public lavatory and place.Described reverse transducer has negative right, in Digital Logic mode, works, and forward transducer now will carry out work according to demarcation.When the signal detecting when forward transducer increases, ion device regulates increase according to increment.When the signal detecting when reverse transducer surpasses calibration value, force the output variable of ion device to reduce.This kind of operating state is applicable to PE: large common facility, and as hospital, large-scale sales field, hotel, office building, stadiums, school, apartment and house etc.In addition, by control panel being selected to different control modes, can remove the validity of transducer, after releasing transducer validity, control panel can directly be controlled the state of ion device.And the state information that shows control mode and ion device on control panel.
When all sensor failures, with the output variable of demarcating on control panel, carry out work, this kind of state is mainly applicable in the situation of sensor failure.Or in the time of need to forcing to process to somewhere air.By ion device Close All, no-output.Micro-processing switch provides the function of cutting out ion device.
As shown in Figure 5, be plasma fundamental diagram of the present invention, the whole external electrode of ionic tube can produce the corolla electric discharge of diffusion.This electric discharge makes ambient air produce reaction, therefore produces cation (active particle) and anion.Due to the existence of water in air molecule make two kinds of ions mutually in and speed slow down, hydrone is attracted by ion, gathers together and has effectively protected ion.Corolla electric discharge, to all directions scattering, is distributed in the whole surface of pipe, has therefore greatly hindered the release of ozone and carbon monoxide, and the generation that is unfavorable for healthy heavy ion.Ionic tube must adopt high quality material to make, and it is anticorrosive and anti-oxidant that its metal parts is wanted, and plastic material palpus fire resistance is good.Therefore, air humidity is to keeping airborne high ionization level to play conclusive effect.The present invention by drive circuit produce frequency be the sine wave signal of 21 ~ 30kHz left and right to ionic tube, therefore can produce the high concentration that nature mixes, the cation that quantity is equal and anion.Utilize the voltage of 800 ~ 1600V, with appropriate energy level, discharge small ion, the generation of ion is adjustable simultaneously, thereby avoids over oxidation to produce free radical.The present invention in use must rationally be applied to the ionic tube of different size, produce Air Flow with matching, allow air fully through ionic tube surface, obtain ionization process, the negative ions producing is permeated in air equably or by pipeline equably simultaneously.
The above, be only preferred embodiment of the present invention, is not intended to limit protection scope of the present invention.
Claims (10)
1. a Wind Volume low-voltage high-efficiency plasma apparatus, is characterized in that, it comprises:
Can control servo power supply, for exporting direct current;
Square wave power amplifier, can control servo power supply and can control square-wave oscillator described in being connected respectively to, described in also utilizing according to the described signal of controlling square-wave oscillator output, can control the direct current generation ac square wave signal output that servo power supply is exported;
Simulator, after the input serial connection choke induction of described simulator, go here and there again between two output points of described square wave power amplifier, the output termination ionic tube of described simulator, is input to described ionic tube for converting the ac square wave signal of described square wave power amplifier output to sine wave signal.
2. Wind Volume low-voltage high-efficiency plasma apparatus as claimed in claim 1, it is characterized in that, it is also provided with suspension driver element, be connected to the described square-wave oscillator controlled and described square wave power amplifier, for receiving the described main clock frequency rate that can control square-wave oscillator, and according to described main clock frequency rate production burst sequence to after output to described square wave power amplifier.
3. Wind Volume low-voltage high-efficiency plasma apparatus as claimed in claim 1, it is characterized in that, it is also provided with automatic phase control unit, and automatic phase control unit includes the shaping unit, the phase error comparator and first that are connected in series successively and controls adapter, wherein, the input of this shaping unit is connected to described simulator output and receives after sine wave signal, generate the square-wave signal with frequency homophase, export described phase error comparator to, this phase error comparator receives respectively the output signal of square-wave signal and described square wave power amplifier and carries out phase demodulation processing, generate and output error signal and output to described first and control adapter, after receiving this error signal, this first control adapter is converted to corresponding direct-current control voltage, direct-current control voltage after high-frequency suppressing is processed as the described control voltage of controlling square-wave oscillator, adjustment in good time can be controlled the main clock frequency rate that square-wave oscillator produces, make the output amplitude of phase error comparator be tending towards 0.
4. Wind Volume low-voltage high-efficiency plasma apparatus as claimed in claim 3, is characterized in that, it also comprises the automatic current control unit of series connection successively, and it comprises current acquisition converting unit, and comparator overshoot controller and second is controlled adapter; Wherein, this current acquisition converting unit receives the sinusoidal current of described ionic tube, convert the direct voltage output of this signal amplitude to, the reference signal that described comparator overshoot controller receives respectively this direct voltage and setting compares, output error signal, and this error signal is processed through overshoot, after high-frequency suppressing, become low frequency and control voltage output, described second controls adapter receives this low frequency and controls voltage and can control through the adaptive generation of conversion the control signal that servo power supply can be identified, and exports to and can control SERVO CONTROL power supply.
5. Wind Volume low-voltage high-efficiency plasma apparatus as claimed in claim 1, is characterized in that, described simulator is the transformer with less leakage current, and its winding mode is to reduce single groove skeleton of leakage inductance.
6. Wind Volume low-voltage high-efficiency plasma air treatment system as claimed in claim 1, it is characterized in that, described ionic tube is corolla corolla discharge mode plasmatron, it comprises the glass tube of an end closure, unsealed one end is sealed by base, in glass tube, be filled with inert gas, the inside and outside wall of this glass tube is respectively equipped with anode and negative electrode, described anode makes by the fine aluminium sheet material dislocation of 0.15 ~ 0.5mm thickness the hole that diameter is 1.5 ~ 3.0mm, and is rolled into the cylinder matching with described glass tube inwall.
7. Wind Volume low-voltage high-efficiency plasma apparatus as claimed in claim 3, is characterized in that, shaping unit is zero-crossing comparator circuit.
8. one kind comprises the air treatment system with Wind Volume low-voltage high-efficiency plasma apparatus as described in any as described in claim 1-7, it is characterized in that, it also comprises central internal controller and connected sensor assembly and controls interface, Long-distance Control interface, state indication and controllable switch power supply, wherein, after the signal that central authorities' internal controller receiving sensor amplifier transmits, and drive the output port of plasma apparatus to produce the control signal matching with ion device; By the input of Long-distance Control interface feedback command information realization strange land, connect, by controlling interface, realize program selector switch, the keying of reset/run switch, and the information exchange at this control interface is crossed state indicating module and is shown, this central processing unit is realized the control to controllable switch power supply by control bus, realizes controlled AC output, direct current output or the output to ion device port.
9. air treatment system as claimed in claim 8, it is characterized in that, described central internal controller includes controller unit and the connected forward and reverse sensor adapter of controlling ion device, forward and reverse sensor adapter feeds back to controller unit by the air information detecting, and controller unit is controlled the output variable of ion device according to this information.
10. air treatment system as claimed in claim 9, is characterized in that, described controller unit also includes control panel, by control panel, selects different control modes, and controller unit is set the priority of forward and reverse sensing adapter.
Priority Applications (1)
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