阅读说明：本技术 一种新型低温等离子体空气消毒装置 (Novel low-temperature plasma air disinfection device ) 是由 张伟 张正韬 于 2020-07-12 设计创作，主要内容包括：本发明公开了一种新型低温等离子体空气消毒装置,包括低温等离子体发生器、空气环境传感器、智能处理器和电源；空气环境传感器用于检测环境中活性物质的浓度；智能处理器读取所述空气环境传感器检测的数据,调整电源对低温等离子体发生器的输入电压和脉冲频率,以使环境中的臭氧浓度低于预设的最高臭氧浓度。本发明能够可根据氧气与氮气分子质量不同和电离能不同的特性,通过智能处理器和空气环境传感器,智能调整并监控室内臭氧的浓度在安全范围,产生的氮氧化物有害产物少,不会出现高致癌毒性的氮氧化物集聚现象,克服了以自然空气为原料电离时衍生致癌性氮氧化物副产物的问题。(The invention discloses a novel low-temperature plasma air disinfection device, which comprises a low-temperature plasma generator, an air environment sensor, an intelligent processor and a power supply, wherein the low-temperature plasma generator is connected with the air environment sensor; the air environment sensor is used for detecting the concentration of an active substance in the environment; and the intelligent processor reads the data detected by the air environment sensor and adjusts the input voltage and pulse frequency of the power supply to the low-temperature plasma generator so as to enable the concentration of ozone in the environment to be lower than the preset highest ozone concentration. The invention can intelligently adjust and monitor the concentration of the indoor ozone within a safe range through the intelligent processor and the air environment sensor according to the characteristics of different molecular masses and different ionization energies of oxygen and nitrogen, the generated harmful products of the nitrogen oxide are few, the nitrogen oxide aggregation phenomenon with high carcinogenic toxicity can not occur, and the problem of generating carcinogenic nitrogen oxide byproducts when natural air is used as a raw material for ionization is solved.)

1. A novel low-temperature plasma air disinfection device is characterized by comprising a low-temperature plasma generator, an air environment sensor, an intelligent processor and a power supply, wherein the power supply is electrically connected with the low-temperature plasma generator, the air environment sensor and the intelligent processor respectively;

the air environment sensor is used for detecting the concentration of an active substance in the environment;

and the intelligent processor reads the data detected by the air environment sensor and adjusts the input voltage and pulse frequency of the power supply to the low-temperature plasma generator so as to enable the ozone concentration in the environment to be lower than the preset highest ozone concentration.

2. The novel low-temperature plasma air sterilization device according to claim 1, wherein the intelligent processor stops the power supply of the power supply to the low-temperature plasma generator when the air environment sensor detects that the ozone concentration in the environment is not lower than a preset maximum ozone concentration.

3. The novel low-temperature plasma air disinfection device as claimed in claim 1, wherein the low-temperature plasma generator comprises two coaxial cylindrical electrodes arranged side by side, the outer walls of the coaxial cylindrical electrodes are quartz media, the interiors of the coaxial cylindrical electrodes are filled with alloy electrode materials, and the quartz media and the alloy electrode materials are coaxially arranged without gaps.

4. A novel low-temperature plasma air sterilizer as claimed in claim 3, wherein two of said coaxial cylindrical electrodes are arranged in parallel to form a dielectric barrier discharge.

5. The novel low-temperature plasma air disinfection device as claimed in claim 4, wherein one end of the coaxial cylinder electrode is closed by quartz medium, and the other end of the coaxial cylinder electrode extends to the outer side of the coaxial cylinder electrode and is connected with the power supply.

6. A novel low temperature plasma air sterilizer as claimed in any one of claims 3 to 5, wherein the alloy electrode material is a titanium alloy.

7. The novel low-temperature plasma air sterilization device according to claim 1, further comprising a heat dissipation device for dissipating heat from the low-temperature plasma generator, wherein the heat dissipation device is electrically connected to the power supply.

8. The novel low-temperature plasma air disinfection device of claim 1, further comprising a WIFI module electrically connected to the intelligent processor.

Technical Field

The invention relates to the technical field of plasma disinfection, in particular to a novel low-temperature plasma air disinfection device.

Background

The low-temperature plasma disinfection is a novel air disinfection technology, and has the advantages of strong disinfection effect, short action time, environmental protection, safety, low energy consumption and long service lifeLong, etc. The plasma is an ionized gas-like substance consisting of positive and negative ions generated after air ionization, is considered as a fourth form of the substance except solid, liquid and gas, and is electrically neutral to the outside. The positive ions and the negative ions generated by the low-temperature plasma generator simultaneously generate huge energy release at the moment of neutralizing positive and negative charges in the air, so that the structure of bacteria around the low-temperature plasma generator is changed to cause the bacteria to die, and the sterilization effect of the low-temperature plasma generator is realized. Because the quantity of the negative ions is greater than that of the positive ions, redundant negative ions still float in the air, and the effects of eliminating indoor smoke, benzene, formaldehyde, ammonia gas and the like can be achieved, so that peculiar smell is eliminated, and the quality of the air is improved. The low temperature plasma contains a large amount of active oxygen components, such as monatomic oxygen (-O), ozone (O)₃) Neutral metastable oxygen molecule, hydroxyl (-OH) radical, etc., wherein O₃The gas components can rapidly diffuse into the whole sterilization space, no dead angle exists in sterilization, and O is₃Because of poor stability, the ozone can be decomposed into oxygen or single oxygen atom rapidly, the single oxygen atom can be combined into oxygen molecule automatically, the hydroxyl radical sterilization product is water molecule and oxygen molecule, no toxic substance residue exists, and when the ozone concentration is lower than the limit value of the allowable contact of human body, no harm can be generated to human body. The low-temperature plasma has low macroscopic temperature which is close to room temperature, and the low-temperature plasma is adopted for air disinfection, so that the air disinfection device can be completely used under the condition of people, work and disinfection are realized, indoor air is continuously disinfected and purified dynamically, and the propagation and regeneration of germs are prevented. Compared with other electrochemical disinfection methods, the plasma disinfection method has the technical advantages of simple operation, high disinfection efficiency, low energy consumption, relatively higher safety and the like.

The key core for realizing dynamic disinfection is that the released disinfection factors cannot cause harm to human bodies, namely, toxic substances cannot be generated or the toxicity is low and controllable. The nitrogen oxide is a carcinogenic substance recognized by the international health organization at present, and the ozone generator in the prior art utilizes air as a raw material, and generates a large amount of nitrogen oxide while generating ozone by high-voltage ionization.

Therefore, how to manufacture an ozone generator which can not generate nitrogen oxides is a problem to be solved urgently.

Disclosure of Invention

The invention aims to provide a novel low-temperature plasma air disinfection device, which can intelligently adjust and monitor the concentration of indoor ozone within a safe range through an intelligent processor and an air environment sensor according to the characteristics of different molecular masses and different ionization energies of oxygen and nitrogen, generates few harmful products of nitrogen oxide, does not generate the phenomenon of nitrogen oxide aggregation with high carcinogenic toxicity, overcomes the problem of generating carcinogenic nitrogen oxide byproducts when natural air is used as a raw material for ionization, and can solve the problems in the background technology.

In order to achieve the purpose, the invention provides a novel low-temperature plasma air disinfection device which comprises a low-temperature plasma generator, an air environment sensor, an intelligent processor and a power supply, wherein the power supply is electrically connected with the low-temperature plasma generator, the air environment sensor and the intelligent processor respectively;

The air environment sensor is used for detecting the concentration of an active substance in the environment;

and the intelligent processor reads the data detected by the air environment sensor and adjusts the input voltage and pulse frequency of the power supply to the low-temperature plasma generator so as to enable the ozone concentration in the environment to be lower than the preset highest ozone concentration.

Preferably, when the air environment sensor detects that the concentration of ozone in the environment is not lower than a preset maximum ozone concentration, the intelligent processor stops the power supply of the power supply to the low-temperature plasma generator.

The amount of active species in the low temperature plasma is closely related to the input voltage power and pulse shape, and a corresponding voltage waveform is required to match for a specific dielectric barrier discharge reactor to achieve the optimal ozone yield and match value without generating nitrogen oxides. The device accurately produces the high-purity ozone with extremely tiny nitrogen oxides by adjusting discharge process parameters according to the characteristics of different molecular masses and different ionization energies of oxygen and nitrogen.

Preferably, the low-temperature plasma generator comprises two coaxial cylindrical electrodes arranged side by side, the outer walls of the coaxial cylindrical electrodes are quartz media, alloy electrode materials are filled in the coaxial cylindrical electrodes, and the quartz media and the alloy electrode materials are coaxially arranged without gaps. The outer wall of the coaxial cylindrical electrode adopts a high-impedance quartz medium to seal the electrode, and filament discharge blocked by the quartz medium is formed, the discharge voltage is only 2000 volts, and the coaxial cylindrical electrode has small discharge spark energy, high safety and small volume.

Preferably, the two coaxial cylindrical electrodes are arranged in parallel to form a dielectric barrier discharge.

Preferably, one end of the coaxial cylindrical electrode is closed by a quartz medium, and the other end of the coaxial cylindrical electrode extends to the outer side of the coaxial cylindrical electrode and is connected with the power supply.

Preferably, the alloy electrode material is a titanium alloy. The titanium alloy has higher hardness, can not cause quartz medium on the outer wall of the coaxial cylinder electrode to be broken, has the advantage of corrosion resistance, and is suitable for extreme environments such as ocean and the like.

Preferably, the novel low-temperature plasma air disinfection device further comprises a heat dissipation device, the heat dissipation device is used for dissipating heat of the low-temperature plasma generator, and the heat dissipation device is electrically connected with the power supply.

Preferably, the heat sink is a fan.

Preferably, novel low temperature plasma air disinfection device still includes the WIFI module, the WIFI module with intelligent treater electric connection. Big data analysis can be carried out simultaneously with data upload backstage through the WIFI module, realizes two-way parallel low accurate precaution and accurate disinfection of carrying out.

Compared with the prior art, the invention has the following beneficial effects:

(1) the invention can intelligently adjust and monitor the concentration of the indoor ozone within a safe range through the intelligent processor and the air environment sensor according to the characteristics of different molecular masses and different ionization energies of oxygen and nitrogen. Meanwhile, by adjusting the discharge voltage, the harmful products of the nitrogen oxides are extremely tiny, the phenomenon of nitrogen oxide aggregation with high carcinogenic toxicity can not occur, and the problem that carcinogenic nitrogen oxide byproducts are derived when natural air is used as a raw material for ionization is solved.

(2) The invention generates a plurality of disinfection factors of charged particles and active oxygen components by quartz medium barrier discharge, wherein the charged particles with higher energy can puncture the external structures of microbes such as bacteria, and the active oxygen components can react with macromolecules such as protein, nucleic acid, lipid and the like in the external structures of the microbes such as bacteria, and the like to generate an etching effect to destroy the structure of a microbial membrane and change the permeability of cells so as to lead the cells to be completely dead. In the case of viruses, particles with strong oxidative effects can disrupt the outer protein coat of the virus, interacting with the central nucleic acid, and causing the virus to die.

(3) The invention adopts coaxial cylinder electrodes, the outer walls of the coaxial cylinder electrodes adopt high-impedance quartz medium closed electrodes, the two coaxial cylinder electrodes are arranged in parallel to form filiform discharge blocked by the quartz medium, the discharge voltage is only 2000 volts, and the discharge spark energy is small, the safety is high and the volume is small.

(4) The invention adopts an integrated design of integration of intelligent monitoring, controlling and treating, wherein the low-temperature plasma generator is a high-efficiency disinfection treatment execution unit adopting a micro-manufacturing technology, and has the function of releasing a large amount of disinfection factors to realize environmental disinfection and air cleaning; the air environment sensor adopts an MAMS technology, accurately senses concentration data of volatile organic compounds, temperature and humidity, carbon dioxide, ozone and nitric oxides in air, and can identify and proportion the flow of people, the environment where bacteria and viruses grow, the concentration of the volatile organic compounds and the release concentration equivalent of disinfection factors on site after analog-to-digital conversion and bottom-layer embedded software operation analysis, so that an intelligent safe disinfection closed-loop system is formed; because the equipment adopts micro-manufacturing and integration technology, the energy consumption is low, the efficiency is high, the lithium battery can be continuously sterilized for more than 6 hours in an environment of 240m3 after being charged, and the equipment can be applied to more severe environment.

Drawings

FIG. 1 is a block diagram of the present invention;

FIG. 2 is a schematic structural diagram of a low-temperature plasma generator according to the present invention;

FIG. 3 is a front view of the coaxial cylindrical electrode of the present invention;

fig. 4 is a cross-sectional view of the coaxial cylindrical electrode of the present invention.

In the figure: 1. a low temperature plasma generator; 2. an air environment sensor; 3. an intelligent processor; 4. a heat sink; 5. a power source; 6. a WIFI module; 7. a coaxial cylindrical electrode; 8. a quartz medium; 9. an alloy electrode material.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1 shows a block diagram of the structure of the novel low-temperature plasma air disinfection device of the present embodiment, which includes a low-temperature plasma generator 1, an air environment sensor 2, an intelligent processor 3, a heat dissipation device 4 and a power supply 5; the power supply 5 is respectively electrically connected with the low-temperature plasma generator 1, the air environment sensor 2 and the intelligent processor 3, and the intelligent processor 3 is electrically connected with the air environment sensor 2;

The air environment sensor 2 is used to detect the concentration of active substances in the environment.

The intelligent processor 3 reads the data detected by the air environment sensor 2 and adjusts the input voltage and pulse frequency of the power supply 5 to the low-temperature plasma generator 1 so as to make the ozone concentration in the environment lower than the preset highest ozone concentration.

When the air environment sensor 2 detects that the ozone concentration in the environment is not lower than the preset highest ozone concentration, the intelligent processor 3 stops the power supply of the power supply 5 to the low-temperature plasma generator 1.

The amount of active species in the low temperature plasma is closely related to the input voltage power and pulse shape, and a corresponding voltage waveform is required to match for a particular dielectric barrier discharge reactor to achieve optimal ozone yield. The device accurately produces the high-purity ozone with extremely tiny nitrogen oxides by adjusting discharge process parameters according to the characteristics of different molecular masses and different ionization energies of oxygen and nitrogen.

The low-temperature plasma generator 1 comprises two coaxial cylindrical electrodes 7 arranged side by side, the outer walls of the coaxial cylindrical electrodes 7 are quartz media 8, alloy electrode materials 9 are filled in the coaxial cylindrical electrodes 7, the quartz media 8 and the alloy electrode materials 9 are coaxially and seamlessly arranged, one end of each coaxial cylindrical electrode 7 is sealed by the quartz media 5, and the alloy electrode materials 9 at the other end extend to the outer side of the coaxial cylindrical electrode 7 to be connected with a power supply 5 for power supply. The outer wall of the coaxial cylindrical electrode 7 adopts a high-impedance quartz medium 8 to seal the electrode, the two coaxial cylindrical electrodes 7 are arranged in parallel to form filiform discharge blocked by the quartz medium 8, the discharge voltage is only 2000 volts, and the discharge spark energy is small, the safety is high, and the size is small.

In a preferred embodiment, the alloy electrode material 9 is a titanium alloy. The titanium alloy has higher hardness, can not cause the quartz medium 8 on the outer wall of the coaxial cylinder electrode 7 to be broken, has the advantage of corrosion resistance, and is suitable for extreme environments such as ocean and the like.

The heat sink 4 is used to dissipate heat from the low-temperature plasma generator 1. Preferably, the heat dissipation device 4 is a fan.

In a preferred embodiment, the novel low-temperature plasma air sterilization device further comprises a WIFI module 6, wherein the WIFI module 6 is electrically connected with the intelligent processor 3. Big data analysis can be carried out simultaneously with data upload backstage through WIFI module 6, realizes that two-way parallel is low to carry out accurate precaution and accurate disinfection.