CN1099306C - Apparatus and method of air purification - Google Patents
Apparatus and method of air purification Download PDFInfo
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- CN1099306C CN1099306C CN94102943A CN94102943A CN1099306C CN 1099306 C CN1099306 C CN 1099306C CN 94102943 A CN94102943 A CN 94102943A CN 94102943 A CN94102943 A CN 94102943A CN 1099306 C CN1099306 C CN 1099306C
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Abstract
The present invention relates to an air purification system. Air is injected into composite electric fields respectively generated by DC voltage within kilovolt range and AC frequencies within kilohertz range by the system, and the DC voltage and the AC frequencies are additionally added on a net component in an air channel. DC amplitude values and the AC frequencies can automatically regulate to selected parameters, and can mutually and separately select the parameters.
Description
The present invention relates to air cleaning system and relevant method, more precisely a kind of by placing compound field to strengthen the filtered air cleaning system airborne pollutant.
The type air cleaning system of being studied comprises a fixedly out-put supply generator that produces high pressure (HV) direct current and/or high frequency (HF) interchange.Independently electrode is supplied with in high pressure that this power source generator produces and high frequency output.In large-scale plant, all electrodes are installed in the air-treatment air channel that is between blending bin and the cooling worm.During operation, this high pressure and high frequency output produce a compound field at this electrode assemblie place.During the primary and secondary air circulation, all pass through this compound field by all air of regulating the space by this system.The particle of sub-micron tends to collision mutually and adheres to and more promptly increase their quality.They are easier to be taken by the system airflow of returning by the loop and wrap up in just to be hunted down in filter or to discharge from building then.Therefore this system has strengthened filtration and has improved the gentle physical efficiency power of particle in the removing air, thereby has reduced the pollutant of regulating in the space.
The result, such air cleaning system is by reducing the demand to a large amount of extraneous airs, and the saving energy investment, save initial outlay by the requirement that reduces heating and cooling equipment, in the daily purification process of regulating the space and cost saving in the cleaning of this airhandling equipment and the servicing operations.Such air cleaning system is also controlled some pollutant, such as tedious dust, smog and smell, so it air fresh, cleaning is returned our life, work and the indoor environment of breathing in, thereby increased human efficiency.
These systems turn round effectively in regulating the space and do not have noise.These systems thereby make anyone all be difficult to realize immediately the interruption of system purification work out of sight.Whether in order to handle this problem, this power source generator is equipped with an indicator, as light emitting diode, so that indicate this generator itself to connect and energising work.
But in such air cleaning system, pollutant places a compound field as the purification process part, and many environmental conditions, systematic parameter and pollutant kind influence the efficient and the effectiveness of this system.Thereby, although can realize this fixedly inefficacy of out-put supply generator, be difficult for the effective work and the corresponding environmental condition of this other element of system of fast detecting.Therefore, may make that this air cleaning system efficient is low; And this point only can be found by polluting again gradually of air.During this period, this space returns to air cleaning system and uses preceding residing state.In addition, because such air cleaning system is before being reduced to optimum level to pollutant, need very long a period of time, particularly in the main equipment, the any fault of this components of system as directed or the change of condition of work may produce impure air quality state, to remove this state fully handy several hours or several days, though notice and get rid of this fault after also be like this.
Determine that also some of Electric Field Characteristics is in conjunction with doing better than other work of removing certain type of contaminant from air.Therefore, for concrete application, preferably can preliminary election Electric Field Characteristics and independent each other so that air cleaning rate maximum.In case select, so preferably keep this specific character.
Each best Electric Field Characteristics all should keep, even the electrode network assembly itself is polluted or the electrode network assembly is placed in and can influences under the condition of electrode and relative electric fields electrical characteristics.
One of purpose of the present invention is to provide a kind of self-regulating air only at system and method, this method places a kind of compound field to air pollutants, the DC voltage of its characteristic such as separate preliminary election and alternating voltage and frequency are so that provide the optimum condition that influences all kinds pollutant.
Another object of the present invention is to provide a kind of air cleaning system, it is characterized in that to be applied to online DC voltage and alternating voltage and frequency independently of each other with automatic adjusting electrical characteristics ability.
The present invention also aims to provide a kind of maintenance comparatively cheap automatic adjusting air cleaning system.
The partly statement in the following description of other purposes of the present invention and advantage is partly from describe or conspicuous or can acquire by enforcement of the present invention.
According to purpose of the present invention, as embody here and general description like that, air cleaning system of the present invention comprises the power supply that a predetermined voltage of generation when being connected on the AC-input voltage is exported; The output that responds this power supply is so that the predetermined voltage in generation kilovolt and the kilohertz range and the variable High Level DC Voltage and the high-frequency circuit apparatus of frequency; One is connected electrically on high pressure and the high-frequency circuit apparatus and is arranged in the passage of moving air so that the air that will purify is placed a conductive valve assembly of deciding the electric field of voltage and frequency, and this valve module constitutes the electric loading of this high pressure and high-frequency circuit apparatus; And be used for changing independently of each other the device of this DC voltage and alternating voltage and frequency.
On the other hand, as embody here and general description, method of the present invention comprises makes the air that will the purify conductive mesh assembly of flowing through; The amplitude that increases input voltage places a compound field so that the high pressure in the kilovolt range and the high frequency in the kilohertz range are applied to the air that makes this net of flowing through on this screen component; Regulate the value of DC voltage and alternating voltage and frequency independently of each other; Detect the voltage value and the frequency of this screen component; And control an Electric Field Characteristics that applies voltage at least according to detected voltage.
Form and constituted this specification part description of drawings two embodiment of the present invention, and be used for explaining principle of the present invention with describing.
Fig. 1 represents a kind of of a kind of air cleaning system each arrangement of parts relevant with purifying the zone, and the schematically illustrating of pollutant in the air;
Fig. 2 is the automatic adjusting system schematic block diagram that can keep the preliminary election electrical characteristics independently of each other;
Fig. 3 A is the block diagram that is used for the dc source of this system;
Fig. 3 B is a kind of block diagram of regulating the high-pressure modular example;
Fig. 3 C is the block diagram that can regulate high-frequency model.
Fig. 4 is the block diagram of the simulation device of this system;
Fig. 5 is the block diagram of the numeral/micro treatmenting device of this system, and
Fig. 6 is the diagram that inductance passes device.
Now will be in detail with reference to most preferred embodiment of the present invention, one of them embodiment represents in the accompanying drawings.
With reference to Fig. 1, air cleaning system of the present invention preferably includes a kind of mobile device of air that is conditioned or purifies that makes.As specializing here, the air channel 10 that comprises an air supply fan 12 enters air to be commonly referred in 14 the space.The moving air that comprises 16 pollutant is along a channel flow and by passage 20 circulations, discharges and another part air enters the mixing portion 24 in air channel 10 by exporting 22 in passage 20 place's portion of air, mixes with extraneous air by import 26.A screen component 29 is arranged in the passage of moving air.Although with get up explanation and describe air cleaning of the adjusting space relationship with an air channel, it should be understood that purifying air of being conditioned can single by regulating the space or directly entering atmosphere, as blast pipe or air purging system.
The present invention includes a screen component, it is arranged in the air duct to be processed and is connected electrically to a screen component in the system, produces a compound field by direct current with exchanging to import.As specializing here, screen component 29 comprises a kind of high-field electrode 30 and a kind of high-frequency electrode 32.These two kinds of electrodes 30 and 32 can comprise that movable rack or selected area of contact are so that the control degree of treatment.It is netted to should be appreciated that these electrodes also can be lead, conducts electricity the conductor of other types of shaft-like, braiding shape or other geometries.
As shown in the figure, system of the present invention also can comprise an air cleaner 34 in the air channel, upstream that is installed in electrode 30 and 32 10, and is installed in cooling or heat(ing) coil 33 in the air channel, downstream of electrode 30 and 32.Air cleaner also can be installed in electrode 30 in this system and 32 the downstream and before entering space 14.
With reference to Fig. 1, when compound field that air produces by electrode 30 and 32 places, smaller particles beginning as illustrated between electrode 32 and coiled pipe 33 is coalescent rapidly or condense.When these granules arrive the air-return duct at passage 20 places by the space that is conditioned, become increasing, for example represent as aggregation block 42 and 44.In one case, show that when the granular mass of having removed contained 94% from control band, the bulky grain quality increases by 367%.Then these bulky grain aggregation block (as 42 and 44) or by opening 22 discharge or with enter by import 26 in the blending bin 24 dirty, untreated extraneous air mixes and be easy to by filter material or high efficiency particulate air filter 34 collections.For most of application scenarios, such filter can have and is approximately 55% efficiency value.In some special application, as data processing center, Casino ' s and medical facility, the efficient that filter 34 may require is about 80% or higher.Air after the filter still contains various tiny particles, and they begin decontamination cycle again by electrode 30 and 32 then, reduces widely and regulates space dust in air, smog, gas and smell.
With reference to Fig. 2, air cleaning system of the present invention (being labeled as 40) has a dc source 50,52 and outputs 54 of an alternating current input, on variable high frequency (HF) alternating current circuit 60 that this output is linked on variable high pressure (HV) DC circuit 56 with output 58 and has output 62.Screen component 29 comprises foregoing high pressure (HV) electrode 30 and high frequency (HFF) electrode 32, and it is connected respectively in the output 58 and 62 of circuit 56 and 60.High pressure (HV) sensor 64 has an input 66 that is connected on high pressure (HV) electrode 30; And exchange high frequency (HF) voltage and frequency sensor 68 and 68 have the input 70 and 70 that is connected on high frequency (HF) electrode 32 '.The output 72 of high pressure sensor 64 is connected on the high-voltage control circuit 74; And ac high-frequency voltage and frequency sensor 68 and 68 ' output 76 and 76 ' be connected to control circuit 78 and 78 ' on.High-voltage control circuit 74 has an output 80 that is connected in variable hvdc circuit 56 inputs; And two outputs 82 and 82 in two inputs that are connected to variable high-frequency circuit 60 of high frequency control circuit 78 and 78 ' have '.High pressure (HV) parameter selects circuit 88 to have an output 90 that is connected on the control circuit 74.High frequency (HF) parameter select circuit 84 and 84 ' have be connected to control circuit 78 and 78 ' on output 86 and 86 '.
Although Fig. 2 represents a kind of comprising and has the self-regulating system that can carry out automatic adjusting of high-frequency circuit and high-tension circuit that separate parameter is selected, for some application, can use expediently to have high-tension circuit and automatically regulate and do not have that high-frequency circuit is regulated automatically or in contrast.
In case acquisition set point, a kind of concrete pollutant or several pollutant are determined the optkmal characteristics of compound field, preferably can keep this state, however the environmental factor that resembles the concentration of temperature, humidity and pollutant or type and so on may change, cause the effectiveness of this compound field to reduce.The objective of the invention is to compensate these environmental factors and therefore keep optimum efficiency.
System of the present invention comprises a power supply with output, and this power supply is received and is used for producing the DC voltage with predetermined amplitude when an interchange input is gone up.As specializing here and with reference to Fig. 3 A, power supply 50 has an input transformer 51 so that set suitable ac voltage.Power supply 50 comprises that also rectifier 53 and voltage-stablizer 55 are so that produce the suitable D. C. value that is used for high pressure, high frequency and control circuit.
According to the present invention, a variable high-tension circuit and the power sourced electric coupling that is used to produce the variable high direct voltage in the kilovolt range.As specialize here and Fig. 3 B as shown in, high-tension circuit 56 has an oscillator 57, transformer 59 and voltage multiplie and rectifier 61.Oscillator as a master source produces a voltage that is transformed into suitable interchange value by this transformer.This voltage multiplie uses the output of transformer, makes this value change suitable multiple, and interchange is become DC voltage.This voltage is in the scope of direct current kilovolt and be applied on the high-field electrode 30.
According to the present invention, a variable high-frequency circuit is coupled with the power sourced electric that is used to produce high frequency output in the kilohertz range.As specializing and with reference to Fig. 3 C, high-frequency circuit 60 has an oscillator 67 and the transformer 63 that can work in the rf frequency scope herein.Oscillator as a master source produces a voltage.This voltage with this voltage is elevated to the transformer coupled of the suitable value of interchange.This voltage is in the scope of hundreds of volt virtual value (RMS) and in the scope of frequency at kilohertz.This voltage is applied on the high-frequency electrode 32.
Therefore, variable high-frequency circuit 60 and variable high-tension circuit 56 have similar elements and function.Should be noted that the secondary coil of this transformer and form a tuning circuit by the capacity load that this screen component 29 manifests, frequency is depended in the impedance of this circuit.If regulate the operating frequency of circuit 60 to such an extent that approach resonant frequency, the electric current in the primary coil of corresponding transformer 63 is lower.Yet when this operating frequency off-resonance frequency, this electric current increases rapidly.Therefore, the output voltage of circuit 66 depends on the operating frequency of corresponding oscillator 67.When corresponding circuits 60 was just in time worked at the resonant frequency place, the output voltage on 62 reached peak value, and when this oscillator frequency during away from resonant frequency this voltage will reduce.Provide an electric current limit regulator (not having diagram) so that when off-design conditions, electric current is limited on the receivable maximum.This departing from may be during starts or take place during inappropriate regulating frequency.
As previously mentioned, conductive mesh assembly 29 is connected electrically on the high-tension circuit 56 by line 58, is connected electrically on the high-frequency circuit 60 by line 62, and is arranged in the passage of moving air so that the air that will purify is placed the compound field that has applied predetermined high pressure and high frequency.The capacity load that screen component 29 constitutes on high-tension circuit 56 and the high-frequency circuit 60.
According to the present invention, an embodiment has one and is coupled to the high pressure sensor on the screen component so that export a voltage, this voltage has amplitude corresponding to the voltage that is applied to voltage on this screen component by high-tension circuit, also have high frequency voltage and frequency sensor so that export a voltage, this voltage magnitude is corresponding to screen component high-frequency electrode effectively (RMS) voltage and frequency (amplitude voltage).As specializing here, voltage sensor 64 is connected on high pressure (HV) net 30, high frequency voltage and frequency sensor 68 and 68 ' be connected respectively on the high frequency net 32.
System of the present invention comprises that one is connected to voltage control circuit on the high tension voltage sensor to variable dc high-voltage circuit.In this way, can keep the predetermined value of this net processing compound field constant.As specializing here and with reference to Fig. 4, describe according to a simulation system of the present invention.Produce an output voltage on the high-voltage control circuit online 80 so that control the frequency of vibration 57 in the high-tension circuit 56.
The output of sensor 64 be one with high-field electrode 30 on magnitude of voltage or the magnitude of voltage of direct ratio.High-voltage control circuit 74 the ginseng on this voltage and online 90 on online 72 be magnitude of voltage relatively.Output on the high-voltage control circuit 74 online 80 is deviation signal, and it has represented the difference between the electrode voltage of virtual electrode voltage on the net 30 and expectation.Output on the high-voltage control circuit 74 online 80 is an input to the hvdc circuit 56 shown in Fig. 3 B.The deviation voltage value that is input to high-tension circuit 56 will be regulated the output voltage values of oscillator 57, and this exports out magnitude of voltage will determine to be applied to magnitude of voltage on the high-field electrode 30.Like this, terminal voltage will remain on the desired value.
System of the present invention also comprise variable interchange high-frequency circuit 60 be connected to high frequency sensors 68 and 68 ' on high frequency control circuit 78 and 78 ', so that according to sensor 68 and 68 ' output voltage frequency and amplitude change electric voltage frequency and amplitude on the electrode 32 that is applied to screen component 29 respectively, constant with the preset frequency and the amplitude that keep compound field.
High frequency voltage and frequency sensor 68 and 68 ' with screen component coupling so that export a voltage, this voltage magnitude is applied to frequency and amplitude on the screen component corresponding to high-frequency circuit 60.As shown in Figure 4, the output of high frequency amplitude sensor 68 is magnitudes of voltage that are directly proportional with voltage magnitude on the high-frequency electrode 32.By high frequency amplitude control circuit 78 relatively with this magnitude of voltage (set point) on online 76.Output on the high frequency amplitude control circuit 78 online 82 is a deviation signal, the difference between the electrode voltage amplitude of its expression virtual electrode voltage magnitude and expectation.
High frequency frequency sensor 68 ' output be a magnitude of voltage that is directly proportional with electric voltage frequency on the high-frequency electrode 32.By high frequency frequency control circuit 78 ' with line 76 ' on this magnitude of voltage compare with reference voltage level (set point).High frequency frequency control circuit 78 ' online 82 ' on output be a deviation signal, its expression virtual electrode electric voltage frequency and the difference of expecting between the electrode voltage frequency.
Refer again to Fig. 2 and 4, high frequency amplitude parameter select circuit 84 have one be used to connect corresponding to reference to or the output 86 of the output voltage of set-point voltage so that compare with the corresponding detection voltage of the high frequency voltage sensor 68 that comes self-electrode 32.The high frequency frequency parameter select one in circuit 84 ' have be used to connect corresponding to reference to or the output 86 of the output voltage of set-point voltage ' so that with the high frequency frequency sensor 68 of electrode 32 ' corresponding detection voltage compare.Parameter select to provide a set point on the circuit 84 and 86 in case for the alternating voltage of electrode 32 be provided with the amplitude set point circuit 84 of expectation ' 86 ' on provide a set point so that the desired frequency of the alternating voltage of electrode 32 is set.High voltage parameter select circuit 88 have one be used to connect corresponding to reference to or the output 90 of the output voltage of set-point voltage so that compare with the corresponding detection voltage of high pressure sensor 64.Parameter select circuit 88,84 and 84 ' set point can independent regulation.Circuit 88,84 and 84 ' manual adjustable settings point can be provided.
Can use several devices to select high frequency and high pressure set point.For example, can use microprocessor.Another kind of notion should be included in to use in the air-flow and detect the checkout gear that some pollutant exists, and regulates power supply then and makes the efficient of this device a kind of all maximum to having of these concrete pollutants.For example, can also be along with the airflow rate regulation voltage level in the passage.
With reference to figure 5, a digital device of system of the present invention comprise electrical couplings to the high-field electrode 30 high pressure sensor and electrical couplings to the high-frequency electrode 32 amplitude sensor 68 and frequency sensor 68 '.A high-pressure modular 56 and a high-frequency model 60 are connected respectively on electrode 30 and 32 so that provide variable DC voltage and variable AC voltage in the mode that is similar to previous embodiment to these two electrodes.This system also comprises analog/digital converter 100 that is connected to sensor 64 outputs and the analog/digital converter 102 that is connected to sensor 68 and 68 ' output.D/A converter 104 has an output that is connected in high-pressure modular 56 inputs.Microprocessor 108 has the input and the output that is connected on the D/A converter 104 that are connected on the analog/digital converter 100.Microprocessor 110 has the input and the output that is connected on the D/A converter 016 that are connected on the analog/digital converter 102.
With reference to figure 5, high pressure and high-frequency electrode are installed in the air-flow so that produce a compound field.This compound field is by sensor 64,68 and 68 ' detection.Analog/digital converter 100 and 102 produces a data signal respectively.The data signal of analog/digital converter 100 is proportional to the voltage D. C. value on the high electrode 36, and the data signal on the analog/digital converter 102 is proportional to the a-c cycle and the amplitude of signal on the high-frequency electrode 32.Each data signal is applied to the input separately of microprocessor 108 and 110.Corresponding microprocessor uses these two digital input signals of instruction process in the storage device 114 and 116 (random access memory and read-only storage) that is stored in also with separately MPU interface.Each microprocessor is exported to separately display circuit 117 and 118,120 and 122 and two D/A converters that separate 104 of interface circuit (RS-232 etc.) and 106 to information.D/A converter 104 is connected on the high-pressure modular 56, and this module is a high pressure generator that can produce DC voltage in the kilovolt range.The output of this D/A converter 104 will be controlled the voltage value that this high-voltage D.C. generator produces, and the output of generator connects on the high-field electrode 30.The output of D/A converter 106 will be controlled the frequency and the amplitude of the alternating voltage that is produced by the high-voltage alternating generator, and this high-voltage alternating generator is connected on the high-frequency electrode 32.
Fig. 6 represents to be used to detect the composite electromagnetic field amplitude relevant with electrode 30 and 32 and another device of frequency.In this embodiment, be arranged in by the inductance sensor 130 in the electrode 30 of screen component 29 and 32 compound fields that produce replace sensors 64,68 and 68 '.This inductance sensor will detect the power line that is produced by this electric field.These power lines are directly proportional with electric-field intensity and frequency that screen component 29 produces.These power lines will induce voltage in this cell winding of inductance, this inductance sensor coil can be connected on any amplifier of knowing and the signal processor so that survey virtual value (RMS), frequency and the peak electricity intensity of this electric field.These signals output to a comparator that is used for a simulation system or the analog/digital converter that is used for digital display circuit then.Although contact Fig. 4 represents and described three independently sensors, people should understand and can use signal inductance sensor coil to survey DC voltage effect that is used for high-tension circuit and interchange amplitude and the frequency effect that is used for high-frequency circuit respectively.
Obviously, for those skilled in the art, in air cleaning system of the present invention, can carry out various improvement and change and do not break away from the spirit and scope of appended claims book.Therefore, the applicant thinks that the present invention covers various improvement and change, as long as these improvement and change are in the scope of appended claims book and its equivalent.
Claims (16)
1. air cleaning system comprises:
A power supply that produces output when having on being connected to AC-input voltage with predetermined amplitude voltage;
One with power sourced electric coupling so that produce the high-tension circuit of kilovolt range inner high voltage direct current output;
One with power sourced electric coupling so that produce frequency in kilohertz range and the high-frequency circuit that the high frequency of amplitude a few hectovolt virtual values (RMS) scope in exported;
One is connected electrically on this high-tension circuit and the high-frequency circuit and is arranged in the passage of moving air so that the air that will purify is placed the conductive component of a compound field with predetermined high pressure and high frequency, and this assembly constitutes the load on high pressure and the high-frequency circuit;
One with the coupling of this assembly so that output has the first sensor circuit corresponding to the amplitude signal that is applied to voltage on this conductive component by high-frequency circuit;
One with the coupling of this assembly so that output has corresponding second sensor circuit that is applied to the amplitude signal of this conductive component upper frequency by this high-frequency circuit;
One with the coupling of this assembly so that output has the 3rd sensor circuit that corresponding this high-tension circuit is applied to the signal of voltage magnitude on this conductive component;
One is connected to the first control circuit of first sensor circuit to high-frequency circuit, so that the high frequency output amplitude that changes this conductive component according to the output voltage of first sensor circuit keeps the predetermined high frequency amplitude components of this compound field constant;
One is connected to second control circuit on second sensor circuit to high-frequency circuit, so that the high frequency output frequency that changes this conductive component according to the output voltage of second sensor circuit keeps the preset frequency of this compound field constant;
One is connected to the 3rd control circuit on the 3rd sensor circuit to this high-tension circuit, keeps the compound field voltage be scheduled to constant so that change high pressure output to this conductive component according to the output voltage of the 3rd sensor circuit; And
Be connected to the selecting arrangement on first, second and the 3rd control circuit, be applied to the scheduled voltage on this conductive component and be applied to preset frequency and amplitude on this conductive component by this high-tension circuit by this high-frequency circuit so that select independently of each other.
2. according to the air cleaning system of claim 1, wherein high-frequency circuit comprises:
Transformer with a primary coil and a secondary coil, this secondary coil is connected on this screen component; And
One is used for controlling electric current in the primary coil and flows so that determine oscillating circuit to the output voltage frequency of this conductive component.
3. according to the air cleaning system of claim 1, wherein high-tension circuit comprises:
In the output that is connected to this control circuit so that control the voltage-controlled oscillator of the output voltage values of this high-tension circuit.
4. according to the air cleaning system of claim 2, wherein this system comprises that one is connected to the output of first and second control circuits upward so that the voltage-controlled oscillator of control high-frequency output voltage numerical value and frequency.
5. according to the air cleaning system of claim 3, wherein this system comprises that one is connected on the 3rd control circuit so that control the voltage-controlled oscillator of the output voltage values of this high-tension circuit.
6. according to the air cleaning system of claim 1, wherein this power supply comprises a rectifier that produces DC voltage when being connected on the AC-input voltage.
7. air cleaning system comprises:
One has the power supply that produces the output with predetermined value voltage when being connected on the AC-input voltage;
One with the coupling of this power sourced electric so that produce the high-tension circuit of the high pressure output in the kilovolt range;
One is connected electrically on this high-tension circuit and is arranged in the passage of moving air so that the air that will purify is placed the conductive component of the electric field with predetermined amplitude, and this assembly constitutes the load on this high-tension circuit;
One with the coupling of this assembly so that output has the voltage sensor circuit corresponding to the voltage of conductive component load amplitude on this high-tension circuit; And
One is connected to control circuit on this sensor circuit to this high-tension circuit, so that change the predetermined value that the high pressure output of this assembly is kept this compound field according to the output amplitude of this sensor circuit.
8. according to the air cleaning system of claim 7, wherein high-tension circuit comprises:
One has output and is connected to multiplication volt circuit on this assembly;
One has a primary winding and secondary coil and secondary coil is connected to the multiplication depressor in this voltage multiplie input; And
Magnitude corresponding to the output voltage of this voltage multiplie is used for controlling the pierce circuit that this transformer electric current flows.
9. air cleaning system according to Claim 8, wherein this pierce circuit comprises:
In the output that is connected to this control circuit so that control the voltage controller oscillator of the output voltage values of this high-tension circuit.
10. according to the air cleaning system of claim 7, wherein this power supply comprises a rectifier that produces DC voltage when receiving on the AC-input voltage.
11. an air cleaning system comprises:
One has output so that produce the power supply with predetermined amplitude voltage when receiving on the AC-input voltage;
Electrical couplings to this power supply so that produce the high-frequency circuit of the interior amplitude of effect value (RMS) scope of high frequency output in the kilohertz range and several hectovolts;
The interior conductive component that the air that will purify is placed electric field of passage that is connected electrically on this high-frequency circuit and is arranged in moving air with preset frequency and amplitude;
A first sensor circuit that is coupled with this conductive component is so that corresponding to the voltage magnitude of voltage output that is applied to by this high-frequency circuit on this conductive component;
Second sensor circuit that is coupled with this conductive component is so that corresponding to the voltage magnitude of frequency output that is applied to by this high-frequency circuit on this conductive component;
One is connected to first control circuit on the first sensor circuit to this high-frequency circuit, so that change the amplitude of the high frequency output of this conductive component constant with the predetermined amplitude that keeps this compound field according to the output voltage values of this first sensor circuit;
One is connected to second control circuit on second sensor circuit on second sensor circuit to this high-frequency circuit, so that change the frequency of the high frequency output of this conductive component constant with the preset frequency that keeps this compound field according to the output voltage values of this second sensor circuit;
A selecting arrangement that is connected on first and second control circuits is applied to preset frequency and amplitude on this conductive component so that select by this high-frequency circuit.
12. according to the air cleaning system of claim 11, wherein this high-frequency circuit comprises:
Transformer with a primary coil and a limit level coil, this secondary coil is connected on this conductive component; And
One is used for controlling the pierce circuit that electric current flows in this primary coil, so that determine the output voltage frequency to this conductive component.
13. according to the air cleaning system of claim 12, one of them voltage-controlled oscillator is connected to output voltage values and the frequency of controlling this high-frequency circuit in the output of first and second control circuits.
14. according to the air cleaning system of claim 11, wherein this power supply comprises the rectifier of receiving a generation DC voltage on the AC-input voltage.
15. an air cleaning method comprises:
Moving air is by a conductive component, so that the air that will purify is placed a compound field with pre-determined amount and frequency;
High-frequency ac voltage in the kilohertz range is applied on this conductive component;
This online voltage is divided into predetermined portions;
Produce control voltage corresponding to the voltage that is divided; And
Be applied to the voltage on this conductive component so that keep the preset frequency of this electric field constant according to this control voltage change.
16. an air cleaning method comprises
Moving air is by a conductive component, so that air placed a compound field with pre-determined amount;
This conductive component is applied high pressure in the kilovolt range;
The voltage division of this conductive component is become predetermined portions;
Produce the control magnitude of voltage according to the voltage after dividing; And
Change according to this control magnitude of voltage this conductive component applied voltage so that keep the pre-determined amount of this electric field constant.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94102943A CN1099306C (en) | 1994-03-18 | 1994-03-18 | Apparatus and method of air purification |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94102943A CN1099306C (en) | 1994-03-18 | 1994-03-18 | Apparatus and method of air purification |
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| CN1108580A CN1108580A (en) | 1995-09-20 |
| CN1099306C true CN1099306C (en) | 2003-01-22 |
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| CN104645769A (en) * | 2015-02-16 | 2015-05-27 | 广州科然机电有限公司 | Indoor air purifier and indoor air purification method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4954320A (en) * | 1988-04-22 | 1990-09-04 | The United States Of America As Represented By The Secretary Of The Army | Reactive bed plasma air purification |
| US5055117A (en) * | 1989-05-23 | 1991-10-08 | Tsinghua University | Air filtering apparatus |
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1994
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4954320A (en) * | 1988-04-22 | 1990-09-04 | The United States Of America As Represented By The Secretary Of The Army | Reactive bed plasma air purification |
| US5055117A (en) * | 1989-05-23 | 1991-10-08 | Tsinghua University | Air filtering apparatus |
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| CN1108580A (en) | 1995-09-20 |
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