JP2001137319A - Air sterilizing and purifying facility which inactivates bacteria caught by a combination of electric dust collector using filter as dust collecting electrode and electronic sterilizer and which exhibits active bactericidal action by releasing superoxide anion radical and minus ion through arranging electronic sterilizer on the blowoff side - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air sterilizing and purifying facility in which sterilization and dust collecting function are conducted at the same time by a combination of plasma and corona discharge, in which superoxide anion radical and minus ion having bactericidal function are released in a room by a combination of new plasma and corona discharge on the blast side to inactivate floating virus and various bacteria, and in which dust is precipitated by an electric neutralizing action to improve environment in a room. SOLUTION: In an electric dust collecting mechanism, electrons by corona discharge are utilized for a charge action, sterilization and dust collection are conducted at the same time in a series of flow by incorporating a plasma generating body generating the plasma region in the same mechanism, and further by placing an electron irradiation portion by corona discharge, the plasma generating body on the blast side, a superoxide anion radical and a minus ion (electron) are contained in the air purified by electric dust collection, and the air in a room is actively purified by bactericidal force and electric neutralizing force.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention combines a plasma and a corona discharge to perform two functions of sterilization and dust collection at the same time. The present invention relates to an air sterilizing and purifying device that releases superoxide anion radicals and negative ions having the same into a room, inactivates floating viruses and various germs, and at the same time, sediments dust by an electric neutralizing action to improve the indoor environment. .

[0002]

2. Description of the Related Art An indoor air purifying device is a device that adsorbs and removes dust by some method, as seen in a filter or an electrostatic precipitator, or a device that sterilizes the device by irradiating it with an ozone generator or ultraviolet rays. Alternatively, a method of fumigation of ozone gas into a room to achieve a sterilizing effect has been used.

[0003]

Among them, in the filter system, particles are captured only by physical adsorption alone, so that particles in micron units such as viruses and bacteria are difficult to capture. If the diameter of the trapped particles is reduced, the filter life is shortened due to the pressure loss and the efficiency is reduced.

In the electrostatic precipitating system, it is said that it is possible to capture particles up to 0.001 μm in size according to the principle of electrostatic adsorption. However, an effective removing effect cannot be expected unless used in combination with a fan system. The removal range is widened by combining with the fan type, but on the other hand, the suction force of the fan exceeds the electrostatic attraction force, the range of the trapped particle diameter is narrowed, and the trapping ability is reduced.

[0005] Regardless of the filter type or the electrostatic precipitating type, both types have no ability to inactivate viruses and bacteria adsorbed and removed, and the filter type carries a disinfectant or titanium oxide to achieve a sterilizing effect. There are also devices that try to sterilize with ozone, which is a by-product of corona discharge. However, none of these methods can provide a bactericidal effect in a short time, and in the case where dust and the like are mixed, the bactericidal factor is not effectively contacted, resulting in inefficiency.

[0006] In order to solve these problems, there are devices which incorporate an ozone or ultraviolet sterilizer, but all of them are different from the dust collecting function, and combining them means that the device itself becomes larger. In addition, ozone exerts an effect via humidity as a disinfecting effect, so there is a doubt about the disinfecting effect when it is subjected to changes in temperature and humidity. The effect seems to be weak in relation.

[0007] In general, any of the air purifying apparatuses collect dust and sterilize in the apparatus, and circulate purified air to purify the room. That is, the purification range and the cleanliness are determined by the number of circulations, and if the improvement of a wide range and the cleanliness is required, the apparatus itself becomes large.

[0008] In addition, there are devices that attempt to sterilize airborne or adherent bacteria by fumigation of ozone in the room, but ozone itself has a strong oxidizing agent and adversely affects the human body and incidental facilities, and cannot be said to be an effective purification method. .

On the other hand, the present inventors irradiate the plasma with electrons of corona discharge to generate superoxide anion radicals in active oxygen, thereby efficiently inactivating viruses and bacteria and, at the same time, generating dust with electrons. And succeeded in efficiently capturing the dust on the dust filter electrode.
In addition, a separate unit combining plasma and corona discharge device is installed behind the blower to efficiently discharge superoxide anion radicals and negative ions into the room, sterilize floating bacteria and attached bacteria, and neutralize floating ions by the electric neutralizing power of negative ions. A method for sedimentation removal was established.

[Means for Solving the Problems]

In order to solve the above-mentioned problem, a plasma generator and a discharge line of a corona discharge portion are provided on the suction side, and a filter having a negatively charged permanent charge behind the plasma generator and an actual positive charge can be provided. A dielectric filter and then an auxiliary filter that generates pressure loss at appropriate intervals are provided, and a functional filter (catalyst or activated carbon) that adsorbs exhausted ozone and hardly decomposable components is a series of units. It is characterized by an air sterilizing and purifying unit configured to separately combine a plasma generator and a corona discharge device on the next side, that is, on the blowing side.

[0011] The invention according to claim 1 is to provide two sets of L-shaped tungsten wires, one of which is shortened, which is thermally coated with special glass having the same thermal expansion force as tungsten, to provide a longer L-shaped portion. Close together so that
It is made by completely joining both ends with a non-corrosive adhesive. In order to cause a plasma phenomenon, it is necessary to cause dielectric breakdown at a high voltage, but the thicker the dielectric, that is, the glass coating film, the higher the voltage is required. It leads to being consumed.

[0012] According to the above configuration, when the plasma generator is manufactured, the application electrode and the ground electrode are manufactured independently, so that a very thin film can be manufactured when the tungsten wire and the glass dielectric are thermally coated. As a result, dielectric breakdown can be caused without applying a high voltage, a discharge phenomenon can be obtained at a low temperature, and the efficiency of dissociation energy consumed by thermal energy can be increased.

According to the first aspect of the present invention, there is provided a plasma generator having the above-described configuration, in which two discharge lines are combined with a wide planar dielectric electrode (charged electrode) so that primary electrons of corona discharge are effectively irradiated. It consists of.

According to the above configuration, ozone and various active oxygens, which are by-products of dissociation and recombination occurring in a plasma region generated in a narrow range, effectively collide with electrons, and generate only oxidizing power and reducing power. A superoxide anion radical having both properties is produced. The process of formation is initially O ₂ + e ⁻ → O + O + e ⁻ due to oxygen dissociation by plasma,
+ O ₂ + O ₂ → O ₃ + O ₂ . Further, when electrons of corona discharge collide, O ₃ + e ⁻ → O + O + e ⁻ .
The dissociated atomic oxygen is partially dissociated in the form of excited singlet oxygen ( ¹ O ₂ ) or directly dissociated to form a superoxide anion radical. Is converted.

By effectively utilizing the above phenomenon, it is possible to sterilize, deodorize, and decompose hardly decomposable components by an oxidation reaction caused by a superoxide anion radical. Further, since the superoxide anion radical retains extra electrons, it easily adheres to airborne bacteria and odor components, which are the components of the contaminated air passing therethrough, and a more bactericidal and deodorizing effect can be expected.

The invention according to claim 2 irradiates the plasma with the electrons by corona discharge according to claim 1,
It is configured to give a negative charge to the passing particles and to perform the function of electric dust collection.

In order to effectively use the above phenomenon, a dust collecting electrode having a polarity opposite to the charge of the particles is required. However, if a suction fan is provided in order to widen the purification range, the suction force is more electrostatic. It is superior to the adsorption power, which leads to a decrease in the dust collecting ability of the trapped particles. In addition, when particles are directly captured on the dust collecting electrode, troublesome cleaning must be performed when cleaning the captured particles.

However, by mounting an electrostatic filter made of polypropylene fiber in front of the dust collecting electrode, and making the dust collecting electrode a simple dielectric electrode with a grid-like particle capturing capability reduced as much as possible, the polypropylene fiber is used simultaneously with energization. The resulting electrostatic filter is attracted to the dielectric electrode by the principle of electrostatic attraction, and at the same time, holds a charge of the same polarity as the dielectric electrode.

In order to make effective use of the above phenomenon, the permanent charge of the electrostatic filter made of polypropylene fiber is made negative. By doing so, when electricity is supplied, the electrostatic filter made of polypropylene fiber can smoothly contact the positively charged dielectric electrode, and at the same time, the electrostatic filter made of polypropylene fiber changes polarity and reverses It moves to the positive polarity charge and plays the role of the dust filter electrode.

By doing so, the negatively charged particles are less likely to adhere to the dielectric electrode having a small adhesion area, and most of them are adsorbed to the dust collection filter electrode made of polypropylene fiber having a sufficient adhesion area. Will do. Further, if the dust collection filter electrode made of polypropylene fiber is exchangeable, it can be easily replaced if it becomes dirty and the adhesion efficiency is reduced, and the troublesome cleaning work of the dust collection electrode can be omitted. In addition, since the dielectric electrode is formed in a grid shape, even if the amount of particles attached is small, it does not lead to a decrease in potential that would hinder electrostatic adsorption.

According to a third aspect of the present invention, an auxiliary filter for separately generating a pressure loss is provided at a rear side in order to enhance the adsorption performance of the dust collecting filter electrode made of polypropylene fiber according to the second aspect of the present invention. For the purpose of lowering the wind speed, the electrostatic attraction force is configured to be superior to the suction force.

In order to effectively use the above phenomenon, an auxiliary filter in which special fibers are laminated and heat-sealed on polyethylene split fibers for generating a moderate pressure loss, and a structure in which a small space is provided between both filters are provided. Was.

By doing so, the fine particles attracted to the suction force rather than the electrostatic suction force pass through the dust collection filter electrode made of polypropylene fiber, but due to the pressure loss created by the auxiliary filter, the wind speed of the suction force is reduced by both filters. Since the pressure decreases in the space between the electrodes, the electrostatic attraction force is superior and the dust is attracted to the back surface of the dust-collecting filter electrode made of polypropylene fiber, and is adsorbed and removed.

According to a fourth aspect of the present invention, the clean air that has passed through the high-performance dust collecting mechanism according to the third aspect is newly passed through a plasma region and a corona discharge region, so that oxygen and water ( Humidity) is converted into superoxide anion radicals and minus air ions, which are returned to the room by the power of the blower fan, and the oxidizing power of the superoxide anion radicals directly kills airborne bacteria and inactivates attached bacteria.
Another object of the present invention is to purify the interior of a room by settling and removing suspended dust by electrical neutralization with the reducing power of negative air ions.

In order to make effective use of the above-mentioned phenomena, in a series of flows from claim 1 to claim 3, the purified air passes through the air before being returned to the room by the fan. Generates a plasma region with a non-heating type plasma generator in a part of it, dissociates part of the oxygen to create atomic oxygen, and further converts it to ozone and other activated oxygen generated through recombination By colliding primary electrons generated by corona discharge, ozone and other activated oxygen are converted into superoxide anion radicals, which are returned to the room together with surplus electrons. Is sterilized.

Here, the oxygen radicals released into the room and contributing to sterilization are limited to superoxide anion radicals. Superoxide anion radicals possess both oxidizing and reducing properties among active oxygen species. This is because it is the only oxygen radical that does.

Having both the oxidation and reduction properties means that particles and bacteria floating in the room repeatedly collide with each other and have a positive charge. It plays a role of electrostatic adsorption, and can efficiently come into contact with airborne particles and airborne bacteria. Then, the superoxide anion radical that comes into contact immediately starts an oxidation reaction, deprives the polluted substance of electrons, and contributes to decomposition and sterilization.

The amount of ozone and other oxygen radicals generated in the plasma region is very small because the plasma region is too narrow, and is superoxide anion radical converted by primary electrons irradiated by corona discharge. The amount is naturally small. Therefore, it is impossible for the amount of superoxide anion radical actually released into the room to exceed the amount of primary electrons emitted by corona discharge, and even if excess superoxide anion radical remains, Since the amount of primary electrons is superior and reduced by electrons to return to stable oxygen, it can be used as a safer germicide than ozone or other oxidizing agents.

Further, the electrons adhere to oxygen and humidity (moisture) in the passing air, and are returned to the room as negative air ions, so that the electrons of the suspended particles and bacteria are electrically neutralized, and Brownian motion occurs. Therefore, suspended particles and suspended bacteria that have lost their charges are attracted to the water and settle down naturally, leading to an active purification action in addition to the suction and removal of indoor pollutants.

However, in a corona discharge method used in a general ion generator, a discharge line or a discharge needle that supplies a negative charge has a positive charge and absorbs electrons emitted from the discharge line or the discharge needle. A dielectric electrode is located behind the discharge wire or discharge needle.

However, according to the above configuration, the particles having a positive charge are also given a negative charge by the electrons emitted from the discharge line or the discharge needle, and become pseudo negative ions. Such pseudo ions are adsorbed and removed by the dielectric electrode, and if the diffusion wind speed exceeds the electrostatic attraction force, the pseudo ions are prevented from being adsorbed and removed and returned to the room.

In this case, the pseudo-negative ion that has escaped the adsorption and removal provides a negative charge to other atoms and atomic groups in the room, and returns to the original positive ion having a positive charge. This leads to a reduction in the ability to return pure negative ions (electrons) into the room and remove airborne particles and bacteria with a positive charge floating in the room.

Therefore, in order to eliminate pseudo ions which lead to a decrease in capacity, in the present invention, a dielectric electrode is arranged behind the discharge wire or the discharge needle, and an electric wind flowing in the direction of the dielectric electrode of the pseudo ions generated simultaneously with electron emission. A fan generates an air flow against the (ion wind), and the pseudo ions are eliminated by the dielectric electrode. Then, pure ions composed of negatively charged electrons, negatively charged oxygen, and moisture in the air are generated. Only negative ions are returned to the room. According to the above configuration, all of the factors required for air purification, the dust collection function, the deodorization function, and the sterilization function can be simultaneously solved in a series of flows, and furthermore, superoxide anion radicals and minus air ions are returned to the room by refluxing. Thus, it becomes possible to actively purify indoor contaminated air.

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be described in more detail with reference to an embodiment shown in the accompanying drawings. FIG. 1 is a schematic view of a dust collecting section of an air sterilizing and purifying apparatus according to the present invention, FIG. 2 is a schematic view of the sterilizing section, FIG. 3 is a schematic view of a supply section of the active sterilizing and purifying apparatus, and FIG. FIG. 5 is a schematic view of an electrode to be used, and FIG.

First, the outline of the dust collecting section of the air sterilizing and purifying apparatus shown in FIG. 1 will be described. The dust collecting unit 7 of the air sterilizing and purifying apparatus is provided with the discharge electrode 6 for giving a negative charge and the dielectric electrode 2 behind the dust collecting filter electrode 1 and only a small interval a, and an appropriate interval b. And an auxiliary filter 3 serving as a pressure drop filter. Behind it, a functional filter 4 that performs both a deodorizing function and an exhaust ozone treatment is provided. Further, in order to inactivate viruses and bacteria captured on the dust collecting filter electrode 1, a non-heating type plasma generator 5 is disposed between the discharge wire 6 and the dust collecting filter electrode 1.

Next, an operation mode of the dust collecting section of the air sterilizing and purifying apparatus will be described. As can be seen from the embodiment shown in FIG. 3, a suction blower fan 5 serving also as a suction blower is provided behind the dust collector.
Is provided so that the contaminated air flows into the dust collecting unit 7 of the air sterilizing / purifying apparatus.

The contaminated air that has flowed into the dust collecting unit 7 is irradiated with negatively charged electrons emitted by the discharge wire 6, and at the same time, some of the contaminated air is generated by a non-heating type plasma. It is dissociated by the plasma generated in the body 5.

Microparticles, viruses and bacteria in the contaminated air, which have been given a negative charge by electron irradiation, are guided to the dust collection filter electrode 1 by the suction force of the suction fan 5 shown in FIG.

At this time, the state of the dust filter electrode 1 is such that when the power switch is turned on, a negative high voltage charge is imprinted on the discharge line 6 and a positive high voltage charge is imprinted on the dielectric electrode 2. Then, the insulation between the two electrodes is broken, a corona discharge phenomenon occurs on the discharge line 6, and a large amount of electrons are emitted from the discharge line 6. Along with this, particles and bacteria passing therethrough become negatively charged, become electric wind (ion wind), and are attracted to the dielectric electrode 2 which has received a positive charge. A dust collection filter electrode 1 that is originally given a negative charge and is made into an electrostatic filter
At the same time, a positive high-voltage charge is imprinted on the dielectric electrode 2, and at the same time, it is attracted to and contacts the dielectric electrode 2 by the principle of electrostatic attraction, so that the polarity of the permanent charge is reversed and the positive charge is obtained.

Here, the phenomenon that the polarity of the permanent charge is reversed is as follows.
Even if a negative characteristic is given, the principle of the electric double layer works electrically, and the positive polarity will be maintained to a considerable extent.
Therefore, it is easy to imagine that the polarity is reversed simultaneously with the contact.

Particles and bacteria passing through the discharge wire 6 are given a negative charge by the collision of primary electrons emitted from the discharge wire 1, so that the dust collection filter electrode 1 having a changed polarity based on the principle of electrostatic adsorption. Will be removed by adsorption.

However, some of the fine particles that have lost the passing flow rate due to the electrostatic attraction force pass through the filter stitches of the dust collection filter electrode 1 and escape from the adhesion.

In order to capture such fine particles, the problem is solved by providing an auxiliary filter 3 with a slight resistance for generating a pressure loss at an appropriate interval behind the dielectric electrode 2.

By providing a small resistance and causing a pressure loss, the flow rate of fine particles passing through the path between the dielectric electrode 2 and the auxiliary filter 3 can be reduced, so that the electrostatic attraction force becomes dominant and the embodiment of FIG. As can be seen from the configuration diagram c, it can be pulled back onto the back surface of the dust collection filter electrode 1 and absorbed.

At this time, if the dielectric electrode 2 is made of a grid-like grid electrode having a coarse mesh or a metal plate having a reduced adhesion area and has a structure that inhibits electrostatic attraction as much as possible, the corona discharge phenomenon due to the adsorbed material can be prevented. The troublesome cleaning operation associated with the operation of removing the adsorbed material is also simplified without affecting the generation.

Next, unless the virus or bacteria adsorbed and trapped by the dust collecting filter electrode 1 is inactivated, the virus and bacteria grow on the adsorbed dust collecting filter electrode 1 and re-disperse.

As can be seen from the embodiment shown in FIG. 2, a non-heating type plasma generator 1 is provided between the discharge wire 2 and the dust-collecting filter electrode 4 to form a plasma region a and pass through the plasma region a. Pollutants are directly dissociated to make them harmless, and oxygen is dissociated to produce ozone and various types of active oxygen.
Further, the primary electrons b emitted from the discharge wire 2 collide with ozone and various kinds of active oxygen, and are converted into superoxide anion radicals, and the oxidizing power inactivates viruses and bacteria.

The contaminated air purified and sterilized by electrostatic adsorption and superoxide anion radicals, together with some odorous components, hardly decomposable components and intermediate reaction products, is used as an auxiliary filter.
And reaches the functional filter 6.

The functional filter 6 is formed by attaching an amino group mainly to activated carbon, and can efficiently adsorb odor components, hardly decomposable components, and intermediate reaction products. Further, the exhausted ozone which has been converted into the superoxide anion radical is once adsorbed and decomposed with time to make it harmless.

The functional filter 6 composed mainly of activated carbon with an amino group attached thereto is mainly for physical adsorption, and has an adsorption capacity of only about 10% of its own weight. However, since superoxide anion radicals and exhausted ozone which has escaped conversion are also adsorbed, the odor components, hardly decomposable components and intermediate reaction products adsorbed on the functional filter 6 cause the superoxide anion radicals and conversion to occur. The functional filter 6 itself is decomposed and extinguished by the oxidizing power of the discharged waste ozone, and the functional filter 6 itself is regenerated, and its life is greatly improved and extended.

Next, an operation mode of active sterilization and purification of the air sterilization and purification apparatus will be described. As can be seen from the embodiment shown in FIG. 3, the contaminated air flowing through the functional filter 6 is completely purified and returned to the room by the suction blower fan 5. The efficiency of cleanliness is determined by the amount of air blown by the blower fan 5, that is, the number of circulations.

However, when purifying the room with the suction blower fan 5, it depends on the size of the room and the ceiling height, and the larger the room, the larger the suction blower fan 5 becomes. However, there is a drawback that it becomes huge.

However, a superoxide anion radical having a sterilizing power and a negative ion (electron) are effectively released behind the suction blower fan 5 to have a function of refluxing into the room, thereby reducing the size of the air sterilizing and purifying apparatus. It will be improved and practicality will be improved.

For this purpose, as a mechanism for effectively generating superoxide anion radicals and negative ions (electrons), a grid-shaped dielectric electrode 4 is provided behind a suction blower fan 5, and a discharge wire 1 is further provided behind the dielectric electrode 4. It was made to arrange.

By doing so, the primary electrons b emitted from the discharge wire 1 adhere to the positively charged atoms and atomic groups in the purified air flowing from the suction blower fan 5, and the atoms and atomic groups are pseudo-negative. Ionize (retain negative charge).
Then, the pseudo-negative ions are opposed to the air flow d from the suction blower fan 5 with the electric wind (ion wind) a, and are attracted by the electrostatic attraction force of the dielectric electrode 4 to travel in the opposite direction to the air flow d. become.

Eventually, the pseudo-negative ions are adsorbed on the dielectric electrode 4, the charge is neutralized and disappears, and there are no positive ions having positive charges in the reflux air flow.
In the return air, there are only pure negative ions (electrons) and negative ions composed of oxygen and moisture supplied with a negative charge. The pure negative ions generated in this way are released from the air sterilizing and purifying apparatus on the airflow d of the suction blower fan 5 and repeatedly collide with atoms and atomic groups in the room, and diffuse to every corner of the room. Will go. When the pure negative ions that spread adhere to particles or airborne bacteria floating in the room, they neutralize the charge and purify the room by the principle of sedimentation removal.

Next, by providing the non-heating type plasma generator 3 between the dielectric electrode 4 and the discharge wire 1, a plasma region c is generated, and ozone and various active oxygens are generated. The primary electrons b emitted from the discharge line 1 collide with the active oxygen, and are converted into superoxide anion radicals by electron reduction. Ozone and various types of active oxygen show a complicated radical reaction through various processes, but the supply of excess negative ions (electrons) is supposed to be fixed as a superoxide anion radical due to the reducing power of the electrons. I don't want to. This is reflected in the properties of the superoxide anion radical. Of the oxygen radicals, the only one that retains both oxidation and reduction properties is the superoxide anion radical.

To effectively collide the ozone and various oxygen radicals produced by the plasma with the primary electrons b irradiated from the discharge line 1, the air flow d of the suction blower fan 5 is changed to the dielectric electrode 4. Was provided with an air-flow stirring plate 2 so as to be divided into two horizontally.

By doing so, the air blown by the suction blower fan 5 is disturbed and a turbulent flow is generated, oxygen is efficiently brought into contact with the plasma region c, and ozone and various oxygen radicals are generated. Further, the turbulence can effectively collide with the primary electrons b emitted from the discharge line 1 in a wide range.

The fact that primary electrons b collide (contact) with ozone and various oxygen radicals in a wide range is nothing but effectively converting ozone and various oxygen radicals into superoxide anion radicals.

In any of the air purifying devices, one mechanism is used.
There is no apparatus that simultaneously satisfies both the functions of dust collection and deodorization and the sterilization function, and there is no air sterilization and purification apparatus provided with a mechanism that simultaneously uses plasma characteristics and primary electrons of corona discharge on both sides of the oxidation energy and the dust collection mechanism. Further, there is no device that gives oxidizing power and reducing power to the purified air and actively discharges the air outside the machine to actively sterilize and purify the air. The present apparatus incorporates a series of purification mechanisms for sucking and purifying contaminated air into the apparatus, and at the same time, purifying the interior of the room with recirculated air by imparting functionality to the purified air. And active purification methods cannot be solved at the same time.

[Brief description of the drawings]

FIG. 1 is a schematic view of a dust collecting section of an air sterilizing and purifying apparatus according to the first, second, and third embodiments of the present invention.

FIG. 2 is a schematic view of a dust collecting section and a sterilizing section of the air sterilizing and purifying apparatus according to the first, second, and third embodiments of the present invention.

FIG. 3 is a schematic view of a supply section of an active sterilizing and purifying apparatus of an air sterilizing and purifying apparatus according to a fourth embodiment of the present invention.

FIG. 4 is a schematic view of an electrode used in the present invention.

FIG. 5 is an embodiment diagram of an example of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Dust collection filter electrode 2 Dielectric electrode 3 Auxiliary filter 4 Functional filter 5 Non-heating type plasma generator 6 Discharge line 7 Dust collection unit a Slight interval b Appropriate space 1 Non-heating type plasma generator 2 Discharge line DESCRIPTION OF SYMBOLS 3 Dielectric electrode 4 Dust collection filter electrode 5 Auxiliary filter 6 Functional filter 7 Dust collection unit a Plasma area b Primary electron c Backflow 1 Discharge line 2 Air flow stir plate 3 Non-heating type plasma generator 4 Dielectric electrode 5 Suction fan Reference Signs List 6 Functional filter 7 Dust collector unit a Electric wind (ion wind) b Primary electron c Plasma region d Air flow 1 Applied electrode or ground electrode 2 Dielectric material with special glass welded 3 Joint with special adhesive 1 Non-heating Type plasma generator 2 discharge wire 3 dust collection filter electrode 4 dielectric electrode 5 auxiliary filter 6 functional filter 7 air flow disturbance Stirring plate 8 Suction blower fan 9 Fan mounting hardware 10 Dust collector unit side plate 11 Dust collector unit bottom plate 12 Dust collector unit partition plate 13 Dust collector unit openable top plate 14 Air disinfection and purification device air intake cover 15 Air disinfection Purifier air vent cover 16 Air sterilizer purifier side cover 17 Air sterilizer purifier back cover 18 Air sterilizer purifier upper cover

 ──────────────────────────────────────────────────続 き Continuing from the front page (54) [Title of the Invention] Combining an electric precipitator with a filter as a precipitating electrode and an electronic sterilizer to inactivate the captured bacteria, and electronically sterilize the blowing side An air disinfection and purification device that disposes a device and releases superoxide anion radicals and negative ions to exhibit active disinfection.

Claims (4)

[Claims] 1. An air sterilizing and purifying apparatus which irradiates a non-heating type plasma generator with primary electrons by corona discharge to generate a superoxide anion radical and incorporates an electron sterilization action by the superoxide anion radical. 2. A combination of a dielectric electrode, which has a dust collecting function as much as possible, and a filter, to which a negative permanent charge is added, so that electrostatic adsorption can be easily performed when a positive charge is applied to the dielectric electrode. An air disinfection and purification device with a dust filter electrode in which the electrode and the filter have the same polarity. 3. An air sterilizing and purifying apparatus in which an auxiliary filter serving as a pressure drop filter for reducing a wind speed is provided behind a dust collecting filter electrode to increase the adsorption efficiency of the dust collecting filter electrode. 4. An electronic sterilizer combining a non-heating type plasma generator and corona discharge is disposed behind the blower fan.
An air sterilizing and purifying device that emits superoxide anion radicals and negative ions to actively sterilize indoor air and sediment and remove suspended particles by neutralizing negative ions (electrons).