CN103836774A - Plasma purifier optimization control method - Google Patents
Plasma purifier optimization control method Download PDFInfo
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- CN103836774A CN103836774A CN201410079480.5A CN201410079480A CN103836774A CN 103836774 A CN103836774 A CN 103836774A CN 201410079480 A CN201410079480 A CN 201410079480A CN 103836774 A CN103836774 A CN 103836774A
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Abstract
The invention discloses a plasma purifier optimization control method. Various gas and particle sensors, a controller and external execution units form a closed-loop control circuit. A current air sampled value is compared with the national standard to judge air pollution index, and a corresponding air purification method is optionally selected; output power of a digital direct-current power source is changed according to measured ozone concentration, and the ozone concentration is dynamically controlled to maintain in the optimal range of the national standard.
Description
Technical field
The present invention relates to gas purification field, be specially a kind of control method of preferred plasma purification device.
Background technology
Along with social development and the enhancing of environmental consciousness, the requirement of the air quality of people to own living environment is also more and more higher.But along with development, the quickening of Urbanization Construction paces and the construction of infrastructure of urban industry, air pollution is also further serious.Volatile organic matter matter (VOC, as formaldehyde, toluene, dimethylbenzene etc.), pellet (PM2.5, PM10), ozone content, Air colony sum become the important indicator of evaluating IAQ.
In such environment, reduce ventilation even if close window, the pellets such as gaseous material and dust such as the bacterium that assembles in air, virus, peculiar smell molecule, VOC not only produce niff, and make air become dirty, easily cause breathing problem, infection and Other diseases, people's health is caused and had a strong impact on.
Central air conditioner system belongs to interior circulation, though screen pack is installed, can only filter the dust that particle diameter is larger, does not have air-cleaning function.Indoor air exchange system is taken a breath in the time that air pollution is serious, will make IAQ decline, and increase energy consumption.
Existing market gas purifier kind is more.With regard to its basic functional principle, mainly comprise conventional filtration absorbent-type, electrostatic precipitation type, anion and plasma for purification, ultraviolet light and the nano photo-catalytic type etc. that combines.Under the various complicated situation of pollution sources now, single technology is often difficult to meet the requirement of air cleaning.Conventionally electrostatic precipitation, anion (plasma), ultraviolet and several technology of photocatalyst are combined, to strengthen its collaborative effect of administering.Each assembly of air purifier is conventionally in continuous duty, and some assembly has certain service life as anion (plasma) generator, ultraviolet and light catalyst element, and continuous operation will cause the increase of operation and maintenance expense.Although now also have by sensor and monitor air quality, just work or stop by monitoring the each assembly of simple control air purifier simultaneously.In practical application, air quality is dynamic change, such as air quality can be closed clarifier when better; And in the time of a certain index exceeding standard of air quality, can Dynamic Selection some assembly and obtain equally best clean-up effect targetedly.In the time of plasma (anion) and light catalyst element work, will have ozone generating in addition, ozone concentration is also the strict parameter of controlling of GB, therefore needs dynamically to control ozone concentration according to selected assembly, makes air quality reach GB.
Therefore need a kind of control method of preferred plasma purification device, indices that can dynamic monitoring air quality, and according to real-time Air Quality, optimizing corresponding clean air package processes, control ozone concentration simultaneously, with meet people to air cleaning environmental protection, energy-conservation, efficiently, demand easily.
Summary of the invention
The object of this invention is to provide a kind of control method of preferred plasma purification device, to realize the object of air cleaning.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of control method of preferred plasma purification device, it is characterized in that: adopt controller control multiple gases and particle sensor to gather various gas content data in air, and send in controller, by controller, various gas content data and GB are compared, to judge air pollution index; Then the corresponding gas with various of controller and particle contamination, by control figure controlled power of direct current, high voltage source, to drive one or more in air sanitizer module, plasma generator to carry out air cleaning processing, and carry out air cleaning processing by one or more in direct control nanometer optical hydrogen ion air clarifying device.
The control method of described a kind of preferred plasma purification device, it is characterized in that: controller control figure controlled power of direct current supplies power to high voltage source, powered respectively to air sanitizer module, plasma generator by high voltage source, excite air sanitizer module, plasma generator by high voltage source with different high-voltage signals, nanometer optical hydrogen ion air clarifying device access controller is by controller control.
The control method of described a kind of preferred plasma purification device, it is characterized in that: described air sanitizer module is made up of the woven wire of the similar sponge of structure, silk screen surface has little pointed projections, silk screen inside is with micropore, micropore itself can filter the particle that particle diameter is large, and the high direct voltage of high voltage source output is connected on woven wire, under the effect of electrostatic field, can the less solid particle of adsorption particle, and kill airborne germ and remove peculiar smell.
The control method of described a kind of preferred plasma purification device, is characterized in that: output is connected described plasma generator electrode with high voltage source, and digital DC power supply can be controlled the output voltage of high voltage source.Under the exciting of high voltage electric field, can produce high energy particle and each active component, in the time that air pollution is heavier, can strengthen its clean-up effect.
The control method of described a kind of preferred plasma purification device, it is characterized in that: described nanometer optical hydrogen ion air clarifying device utilizes ultraviolet ray, be radiated on nano photo-catalytic material, produce free radical and active particle, by advanced oxidation particle ionization, chemical decomposition pernicious gas and peculiar smell, remove particle, kill bacterial micro-organism pollutant, thereby reach the effect of air cleaning.
The control method of described a kind of preferred plasma purification device, is characterized in that: described digital DC controllable electric power is connected with high voltage source by controllable silicon, and controllable silicon access controller, and silicon controlled duty is controlled by controller; Described nanometer optical hydrogen ion air clarifying device is by controllable silicon access controller, and silicon controlled duty is also controlled by controller.
The present invention adopts all kinds of gas and particle sensor, controller, outside execution unit to form close loop control circuit.Compare according to current air sampling value and GB, judge air pollution index, optimize corresponding air purification method.Then according to the ozone concentration of measuring, change digital DC power supply out-put supply, dynamically control ozone concentration, make it to maintain in the scope of GB the best.So, reach air purification effect, and don't produce secondary pollution.
Accompanying drawing explanation
Fig. 1 is structural principle block diagram of the present invention.
Fig. 2 is topology layout figure of the present invention.
The specific embodiment
As shown in Figure 1.A kind of control method of preferred plasma purification device, it is characterized in that: adopt controller control multiple gases and particle sensor to gather various gas content data in air, and send in controller, by controller, various gas content data and GB are compared, to judge air pollution index; Then the corresponding gas with various of controller and particle contamination, by control figure controlled power of direct current, high voltage source, to drive one or more in air sanitizer module, plasma generator to carry out air cleaning processing, and carry out air cleaning processing by one or more in direct control nanometer optical hydrogen ion air clarifying device.
Controller control figure controlled power of direct current supplies power to high voltage source, powered respectively to air sanitizer module, plasma generator by high voltage source, excite air sanitizer module, plasma generator by high voltage source with different high-voltage signals, nanometer optical hydrogen ion air clarifying device access controller is by controller control.
Gas and particle sensor comprise O
3sensor, inhalable particles sensor, VOC and NH
3sensor, SO
2with NO
2sensor.
Air sanitizer module is made up of the woven wire of the similar sponge of structure, silk screen surface has little pointed projections, silk screen inside is with micropore, micropore itself can filter the particle that particle diameter is large, the high direct voltage of high voltage source output is connected on woven wire, under the effect of electrostatic field, can the less solid particle of adsorption particle, and kill airborne germ and remove peculiar smell.
Output is connected plasma generator electrode with high voltage source, can produce high energy particle and each active component under the exciting of high voltage electric field, in the time that air pollution is heavier, can strengthen its clean-up effect.
Nanometer optical hydrogen ion air clarifying device utilizes ultraviolet ray, is radiated on nano photo-catalytic material, produces free radical and active particle, by advanced oxidation particle ionization, chemical decomposition pernicious gas and peculiar smell, remove particle, kill bacterial micro-organism pollutant, thereby reach the effect of air cleaning.
Digital DC controllable electric power is connected with high voltage source by controllable silicon, and controllable silicon access controller, and silicon controlled duty is controlled by controller; Described nanometer optical hydrogen ion air clarifying device is by controllable silicon access controller, and silicon controlled duty is also controlled by controller.
The present invention is made up of air sanitizer module, plasma generator, nanometer optical hydrogen ion air clarifying device, and each module can work independently under the control of controller also can concurrent working.Compare according to current air sampling value and GB, judge air pollution index, optimize corresponding air-purifying module and process.During due to each module work, all can produce ozone, according to the ozone concentration of measuring, change digital DC electric power output voltage, dynamically control ozone concentration, make it to maintain in the scope of GB the best.
Its working method of the present invention comprises the following steps:
1. start, system is moved in acquiescence mode.
2. compare according to measurement value sensor and GB, judge air pollution degree, and optimize corresponding plasma purifying method.
2.1 air qualities are excellent, only open air sanitizer module
2.2 sulfur dioxide or nitrogen dioxide exceed standard, and start warning (audible alarm or warning lamp flicker) or open VMC.
2.3 PM10, PM2.5 exceed standard: start air sterillization and plasma generator
2.4 VOC exceed standard: start plasma generator and nanometer optical hydrogen ion air clarifying device
2.5 many indexs exceed standard, and start air sanitizer module, plasma generator, nanometer optical hydrogen ion air clarifying device
3. optimize after different plasma purifying methods, according to the ozone concentration value of measuring, controller judges, adjusts the output of digital DC power supply, thereby changes high voltage source output, makes ozone concentration at optimum range.
3.1 N
1<Ns and N
1>=Ns-Δ N, maintains work at present state (ozone concentration the best)
3.2 N
1<Ns and N
1<Ns-Δ N(ozone concentration is on the low side), increase digital DC controllable electric power operating voltage, with hoisting power,
3.3 N1>Ns(ozone concentrations are higher), reduce digital DC controllable electric power operating voltage, further to reduce power.
4. controller starts circulation execution from second step
Air sanitizer module is made up of the woven wire of the similar sponge of structure, and silk screen surface has little pointed projections, and silk screen inside is with micropore, and micropore itself can filter the particle that particle diameter is large, and the high direct voltage of high voltage source output is connected on parallel woven wire.Under the effect of electrostatic field, can the less solid particle of adsorption particle, and kill airborne germ and remove peculiar smell.
Output is connected plasma generator electrode with high-voltage DC power supply, can produce high energy particle and each active component under the exciting of high voltage electric field.In the time that air pollution is heavier, can strengthen its clean-up effect.
Nanometer optical hydrogen ion air clarifying device is a kind of photocatalyst catalytic air purification technology, utilize special wave band ultraviolet ray, be radiated on nano photo-catalytic material, produce free radical and active particle etc., by these advanced oxidation particle ionizations, chemical decomposition pernicious gas and peculiar smell, remove particle, kill the microorgranic contaminants such as bacterium, thereby reach the effect of air cleaning.
Air sanitizer module and plasma generator are excited by different high voltage sourcies, and high voltage source is powered by digital DC controllable electric power.Controllable electric power is provided with the digital interface being connected with controller, can adjust by controller the DC voltage of output, thereby changes the power output of high voltage source.
Between the output of digital DC controllable electric power and high voltage source power supply, adopt controllable silicon to connect, silicon controlled duty is controlled by controller output.The power supply in same described nanometer optical hydrogen ion source is also connected by controllable silicon, and silicon controlled duty is controlled by controller output.
As shown in Figure 2, the preferred plasma purification device of the present invention comprises air inlet 7 and air outlet 8, is disposed with air sanitizer module 2, plasma generator 3, nanometer optical hydrogen ion air clarifying device 4 and blower fan 5 between air inlet and air outlet.Air inlet and air outlet place are provided with interface 1 and 6, can be connected with VMC with central air conditioner system easily.This device also can be combined into as air purifier independently with control system, very easy to use.
The each module of the present invention can work alone under controller control also can combine concurrent working.Compare by various gas and particle sensor sampled value and GB, judge air pollution index, optimize different air-purifying modules and process.During due to each module work, all can produce ozone, according to the ozone concentration gathering, change digital DC electric power output voltage, dynamically control ozone concentration, make it to maintain in the scope of GB the best.
For the occasion that central air-conditioning is installed, this device can be arranged on to central air-conditioning air outlet place by interface 1 and 6.If indoor location has air exchange system, native system can be arranged on to the exit of air exchange system by interface 1 and 6, and in the time of indoor relevant air index exceeding standard, export control signal, it is indoor that startup air exchange system makes outdoor fresh air enter by air cleaning, in the time of outdoor air process operational module of the present invention, under the control of controller, can select corresponding module to purify air.Can be connected with air-conditioning (wall hanging or cabinet type machine) air outlet place with 6 native systems by interface 1 in addition.Modules of the present invention also can with control system combination, and mounting casing and become independently unit air purifier,
Embodiment mono-: process pellet (room air pellet standard GB/T17095)
In simulation laboratory, quantitative printer ink powder is distributed in test space, to simulate the pellet situation that exceeds standard, adopt impacting type weight method to obtain space initial concentration.
Adopt the control method of preferred plasma purification device of the present invention, sensor detects that particle exceeds standard, and optimizes air sanitizer module 2 and plasma generator 3 concurrent workings.Adopt this method work 24 hours particle content in sampled air again.Its content drops to 0.04 mg/L by 1.00 initial mg/L, and resolution ratio reaches 96%.In duration of test sensor dynamic monitoring air quality, when particle content is during lower than national standard 0.15 mg/L, controller switching operational module, only preferably an air sanitizer module 2 is carried out work.According to the ozone concentration detecting, dynamically adjust the power output of high voltage source simultaneously, ozone concentration is controlled in GB.Therefore this method can be according to the dynamic change of air quality, and preferably corresponding processing module reaches optimization process effect simultaneously.There are efficient, energy-saving and environmental protection, be easy to the feature safeguarded.
Embodiment bis-: process VOC and gas with foreign flavor
In simulation laboratory, will in formalin, benzene, methyl mercaptan solution (solution used is and analyzes pure solution), ammonia solution, distinctly be put in surface plate, and its initial concentration of then sampling for 12 hours that volatilizees in space.Relevant criterion is according to GB/18883-2002, GB/T 18204.25-2000, GB/T 18204. 26-2000, GB 11737-89.
Adopt the control method of preferred plasma purification device of the present invention, sensor detects that ammonia and VOC exceed standard, and optimizes plasma generator 3 and 4 concurrent workings of nanometer optical hydrogen ion air clarifying device.Adopt this method work 24 hours corresponding pollutant load in sampled air again, and obtain its degradation rate.Within 24 hours, degradation rate all reaches more than 91.5%.In duration of test sensor dynamic monitoring air quality, when pollutant load is during lower than national standard, controller switching operational module, only preferably an air sanitizer module 2 is carried out work.Duration of test, according to the ozone concentration detecting, is dynamically adjusted the power output of high voltage source simultaneously, and ozone concentration is controlled in GB.
Embodiment tri-: BA
First in simulation laboratory, adopt this device to detect air quality, indices is all up to state standards.Adopt shock method GB/T 18204.1-2000 to obtain initial clump count in air.
Adopt the control method of preferred plasma purification device of the present invention, sensor detects that air quality is all up to state standards.Preferably air sanitizer module 2 is worked 24 hours, then measures the total number of bacteria of air, and obtains sterilizing rate.More than within 24 hours, sterilizing rate reaches 99 %.In duration of test sensor dynamic monitoring air quality, and preferably corresponding module walks abreast or works independently.Duration of test, according to the ozone concentration detecting, is dynamically adjusted the power output of high voltage source simultaneously, and ozone concentration is controlled in GB.
The above embodiment is described the preferred embodiment of the present invention; not scope of the present invention is limited; design under the prerequisite of spirit not departing from the present invention; various distortion and improvement that the common engineers and technicians in this area make technical scheme of the present invention, all should fall in the definite protection domain of claims of the present invention.
Claims (6)
1. the control method of a preferred plasma purification device, it is characterized in that: adopt controller control multiple gases and particle sensor to gather various gas content data in air, and send in controller, by controller, various gas content data and GB are compared, to judge air pollution index; Then the corresponding gas with various of controller and particle contamination, by control figure controlled power of direct current, high voltage source, to drive one or more in air sanitizer module, plasma generator to carry out air cleaning processing, and carry out air cleaning processing by one or more in direct control nanometer optical hydrogen ion air clarifying device.
2. the control method of a kind of preferred plasma purification device according to claim 1, it is characterized in that: controller control figure controlled power of direct current supplies power to high voltage source, powered respectively to air sanitizer module, plasma generator by high voltage source, excite air sanitizer module, plasma generator by high voltage source with different high-voltage signals, nanometer optical hydrogen ion air clarifying device access controller is by controller control.
3. the control method of a kind of preferred plasma purification device according to claim 1, it is characterized in that: described air sanitizer module is made up of the woven wire of the similar sponge of structure, silk screen surface has little pointed projections, silk screen inside is with micropore, micropore itself can filter the particle that particle diameter is large, and the high direct voltage of high voltage source output is connected on woven wire, under the effect of electrostatic field, can the less solid particle of adsorption particle, and kill airborne germ and remove peculiar smell.
4. the control method of a kind of preferred plasma purification device according to claim 1, is characterized in that: output is connected described plasma generator electrode with high voltage source, and digital DC power supply can be controlled the output voltage of high voltage source; Under the exciting of high voltage electric field, can produce high energy particle and each active component, in the time that air pollution is heavier, can strengthen its clean-up effect.
5. the control method of a kind of preferred plasma purification device according to claim 1, it is characterized in that: described nanometer optical hydrogen ion air clarifying device utilizes ultraviolet ray, be radiated on nano photo-catalytic material, produce free radical and active particle, by advanced oxidation particle ionization, chemical decomposition pernicious gas and peculiar smell, remove particle, kill bacterial micro-organism pollutant, thereby reach the effect of air cleaning.
6. the control method of a kind of preferred plasma purification device according to claim 1, it is characterized in that: described digital DC controllable electric power is connected with high voltage source by controllable silicon, and controllable silicon access controller, silicon controlled duty is controlled by controller; Described nanometer optical hydrogen ion air clarifying device is by controllable silicon access controller, and silicon controlled duty is also controlled by controller.
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| CN104006511A (en) * | 2014-06-06 | 2014-08-27 | 中康韦尔(保定)环境科技有限公司 | Air purifier intelligent control system |
| CN105823173A (en) * | 2016-03-22 | 2016-08-03 | 青岛海尔智能技术研发有限公司 | Air purification method and system |
| CN107084515A (en) * | 2016-02-16 | 2017-08-22 | 乐金电子研发中心(上海)有限公司 | A kind of air purification method and device |
| CN111380127A (en) * | 2020-04-17 | 2020-07-07 | 青岛华云空气科技有限公司 | Man-machine coexistable air disinfection and purification all-in-one machine and use method thereof |
| CN111706966A (en) * | 2020-05-29 | 2020-09-25 | 广州市拓丰电器有限公司 | Method, system, device and storage medium for air purification |
| CN111840628A (en) * | 2020-07-12 | 2020-10-30 | 上海置中环保科技股份有限公司 | Novel low-temperature plasma air disinfection device |
| CN111928442A (en) * | 2020-07-02 | 2020-11-13 | 雄安达实智慧科技有限公司 | Intelligent monitoring and sterilizing method and device for indoor air environment and storage medium |
| EP4039283A1 (en) * | 2021-02-07 | 2022-08-10 | Carrier Corporation | Air purification device |
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Application publication date: 20140604 |