JP2011019579A - Method and device for cleaning and drying air - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a safe method of cleaning and drying air with reduced power consumption, capable of cleaning air by circulating interior air, annihilating bacteria in air and degrading a malodorous organic gas, and capable of reducing the humidity by reducing water molecules in air. <P>SOLUTION: Air including floating substances is made to pass between electrodes 1 and 2, and sharp pulse voltage higher than the voltage for cutting the coupling of molecules in the floating substances and with shorter starting time than the voltage for causing discharge by destroying air insulation is applied to the electrodes 1 and 2, so that an instantaneous high electric field is generated between the electrodes 1 and 2 in the pulse period. Electrons accelerated by the high electric field are made to strike at the molecules of the floating substances present between the electrodes to decompose the molecules. Fine living bodies in air are annihilated by destroying the cells, and the malodorous organic gas is degraded to an odorless gas. Air can be sterilized and deodorized in this way, and air can be dried by decomposing water molecules in air. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an air purification drying apparatus that performs sterilization, deodorization, and drying simultaneously.

Conventionally, air purification devices for sterilization and deodorization, dryers and dehumidifiers to dry the air have been provided for general households, and the temperature and humidity in buildings are used for business purposes such as office buildings, warehouses and factories. An air conditioner for keeping constant is provided with a dehumidifying function, a sterilizing function, a deodorizing function, and the like.
In recent years, medical facilities, nursing homes, and the like have been demanded for air conditioners that have a sufficiently effective sterilizing effect and are durable in order to prevent infection by airborne pathogenic bacteria.
As for the function of each device, ozone is usually used for the sterilization function, but ozone is generated with an ozone generator, and with the ultraviolet irradiation method, an ultraviolet irradiation tube is used. Is adsorbed on a filter containing a deodorizing material such as activated carbon or deodorized by decomposing the original organic gas of the odor with the generated ozone.
In addition, as described in Patent Document 1 and Patent Document 2 below, there is also a proposal of an apparatus that can decompose organic gas by plasma generated between electrodes and has a sterilizing function.

JP 2000-139198 A JP 2003-158996 A

However, in the above conventional method, for example, when ultraviolet irradiation or an ozone generator is used, there is a problem of discoloring or deteriorating peripheral components inside and outside the apparatus by decomposing molecules having a pigment component although having a bactericidal action. In addition, there is a risk of damaging skin cells when exposed directly to humans.
Moreover, in the case of using an activated carbon filter, the performance is lost unless the filter is appropriately replaced, so that maintenance management for filter replacement becomes necessary.
And in devices using plasma generated between electrodes, such as conventional ozone generators, electromagnetic wave noise may occur, which may cause interference with signal processing of surrounding communication devices. is necessary.
In addition, an apparatus for generating OH radicals with plasma generated between electrodes has been proposed. In this apparatus, sterilization action is also generated by strong oxidizing action of OH radicals generated in the presence of moisture. It is necessary to supply water, and there is a disadvantage that it is counterproductive when trying to remove moisture in the air.
In addition, many conventional dryers and dehumidifiers use a method of dew condensation by heat exchange using a refrigerant, and this method consumes a large amount of power for heat exchange and generates a large amount of dew condensation water. However, there is a drawback that it must be treated.

  Therefore, the present invention has been made to solve the various problems caused by the above-described conventional technology, and consumes less power, disinfects bacteria in the air, and becomes a source of odor by decomposing organic gas. It is an object of the present invention to provide an air purification drying method and apparatus capable of producing an odor and simultaneously drying the air by removing moisture from the air.

  In order to solve the above-mentioned problem, in the invention of the method for purifying and drying air according to claim 1, air containing floating substances is passed between the electrodes, and the molecular bonds of the floating substances can be cut into the electrodes. Apply a steep pulse voltage with a short rise time that is higher than the voltage and lower than the voltage that breaks the air insulation and generates a discharge, and generates an instantaneous high electric field between both electrodes in a pulse cycle. , The electrons accelerated by the high electric field collide with floating molecules existing between the two electrodes to decompose the molecules, and the minute organisms in the air destroy the cells and die, giving off a bad odor. The gas is decomposed into an odorless gas to enable sterilization and deodorization, and water molecules in the air can be decomposed to dry the air.

  In the air purifying and drying apparatus for carrying out the invention described in claim 1 described in claim 2, the air circulation path has a planar extension so as to partition the air circulation path, and A plane or mesh-like breathable internal electrode and a mesh-like or grid-like breathable external electrode provided so as to surround the front and back surfaces of the internal electrode from the outside are installed, and the internal electrode and the external electrode Is characterized in that a pulse voltage transmitter for transmitting a pulse voltage by energizing a power source through an energization circuit of each electrode is connected, and a ground is connected to the external electrode.

  In the invention according to claim 3, in the above invention, when the interval between the surfaces of the mesh-like or grid-like internal electrode and the external electrode is 1 mm, the rise time of the applied pulse voltage is 5 microseconds. The pulse output voltage is set to 500 V to 2 kV as follows.

In the air purification drying method of the present invention, air containing organic gas or fine suspended matter is passed between the electrodes, and an instantaneous high electric field generated between both electrodes with a steep pulse voltage between the electrodes. The accelerated electrons collide with a molecule existing between both electrodes to break the chemical bond of the molecule and decompose it into another chemical substance.
For this reason, the organic gas that emits a bad odor by accelerated electrons is decomposed into an odorless gas, and pathogenic bacteria such as viruses and airborne bacteria can be destroyed and killed.
At the same time, water molecules in the air are decomposed, so that the air can be dried.

In the air purification drying apparatus according to claim 2, the air purification drying method is performed so that air in a room passes through a high electric field generated between the internal electrode and the external electrode. It circulates in the air and kills microscopic living organisms such as viruses and bacteria harmful to the human body in the air, purifies the air by decomposing organic gases that emit odors such as methane, and simultaneously converts water molecules in the air. It becomes possible to reduce the humidity in the air, which is one of the factors that increase the discomfort index by decomposing.
In addition, this air purifying and drying device does not flow current between electrodes, but only applies pulse voltage intermittently, so it consumes less power and has excellent sterilizing and deodorizing functions and air drying functions. It can be obtained at the same time.
Moreover, the conventional apparatus for sterilization and deodorization with ozone and ultraviolet rays has problems such as deterioration and decolorization, but the present invention has an advantage that such problems do not occur at all.

  And, by using a structure in which a mesh-like or grid-like planar internal electrode and external electrode are superposed, it becomes possible to use it as a filter to purify air in the process of passing air from one surface to the other. It has also become possible to easily incorporate and use in various air conditioning equipment and purification equipment such as air conditioners and air purification equipment.

  In the invention according to claim 3, when the interval between the internal electrode and the external electrode is 1 mm, the rise time of the applied pulse voltage is set to 5 microseconds or less, and the pulse output voltage is limited to a numerical value of 500 V to 2 kV. As a result, a steep pulse voltage with a short rise time that can break the bond of molecules existing between the electrodes can be obtained, and a discharge that breaks the air insulation does not occur. It is possible to generate an electric field with a pulse period, and fine organisms in the air are destroyed by cells accelerated by the electrons accelerated by the high electric field, and the organic gas that emits a bad odor decomposes and is not brominated. At the same time, water molecules in the air can be decomposed to fully exhibit the sterilizing function, deodorizing function, and air drying function that can dry the air.

It is a typical explanatory view showing explanation of an operation of the present invention. It is a schematic diagram of the apparatus of this invention. It is a perspective view which shows the principal part of a net-like internal electrode and an external electrode. It is a perspective view of the apparatus which shows the state which decomposed | disassembled the principal part of the apparatus of FIG. It is a graph which shows an example of a pulse voltage. It is a graph of the experimental result which confirms drying.

The present invention relates to a method and apparatus for purifying and drying air, and an embodiment thereof will be described from a method and method for purifying and drying air.
The method for purifying and drying air of the present invention allows air containing suspended solids to pass between the electrodes, and breaks the air insulation at a voltage higher than the voltage that enables the molecular bonds of the suspended solids to be broken between the electrodes. Applying a steep pulse voltage that is lower than the voltage that generates discharge and having a short rise time, an instantaneous high electric field is generated between both electrodes in a pulse period, and electrons accelerated by the high electric field are generated between both electrodes. It is caused to collide with a molecule present in the structure to decompose the molecule.
As a result, in the present invention, living organisms in the air existing between the two electrodes are destroyed by cell destruction and the odorous gas is decomposed and made odorless gas to sterilize and deodorize the water molecules. Hydrogen and oxygen can be decomposed to dry the air.

For example, as shown in FIG. 1, methane gas (C ₂ H ₄ ) or one gas is interposed between the internal electrode 1 and external electrodes 2 and 3 provided so as to surround the front and back surfaces of the internal electrode 1 from the outside. Air containing harmful organic gas such as carbon oxide gas (CO) is allowed to pass (from right to left in FIG. 1), and at that time, the molecular bonds of the organic gas can be cut to the electrodes 1, 2, and 3. A pulse voltage transmitter 4 applies a steep pulse voltage that is higher than the voltage to be generated and lower than the voltage that breaks the air insulation and generates a discharge and has a short rise time, and the electrodes 1, 2, 3, In the meantime, an instantaneous high electric field is generated with a pulse period.
Then, the electrons e accelerated by the high electric field are caused to collide with harmful organic gas molecules such as methane gas (C ₂ H ₄ ) and carbon monoxide gas (CO) existing in the air between the electrodes. The bond is broken and decomposed into carbon (C), hydrogen (H ₂ ), oxygen (O ₂ ) and the like.

This chemical reaction will be described in more detail below.
In the present invention, a high electric field is generated between the electrodes, the electrons are accelerated by the high electric field, and the accelerated electrons collide with a suspended substance such as a gas compound or bacteria existing in the electrode. Collides with the cell membrane and is destroyed, and organic gas breaks down by breaking the chemical bonds of the molecules.
The chemical reaction is represented by the following chemical formulas (1) to (4).

この式（１）はエチレンガスが分解される化学式である。理論上、この炭素と水素の結合する結合エネルギー（３．５ｅＶ）程度であるのでこの値以上のエネルギーに加速された電子で分子結合を切断することが可能となる。
本発明では、立ち上がり時間の短い急俊なパルス電圧をパルス電圧発信機４で印加して発生した高電場により、結合エネルギー（３．５ｅＶ）を越えるエネルギーに加速された電子を短時間で繰り返し得ることが可能となり、この繰り返しで上記式（１）の化学式の通りエチレンガスの分解が進行する。
エチレンガスは生鮮植物の呼吸によっても放出されるガスであり、保冷庫や冷蔵庫内に蓄積され、濃度が高くなると植物類が窒息状態になり鮮度を落とす大きな要因であるので、鮮度保持のためにもエチレンガス（Ｃ₂Ｈ₄）を分解することは有益である。

This formula (1) is a chemical formula by which ethylene gas is decomposed. Theoretically, this is about the bond energy (3.5 eV) at which carbon and hydrogen are bonded, so that it is possible to break the molecular bond with electrons accelerated to an energy higher than this value.
In the present invention, electrons accelerated to an energy exceeding the binding energy (3.5 eV) can be repeated in a short time by a high electric field generated by applying a steep pulse voltage with a short rise time by the pulse voltage transmitter 4. By repeating this process, the decomposition of ethylene gas proceeds according to the chemical formula of the above formula (1).
Ethylene gas is also released by the breathing of fresh plants.It accumulates in cold storage and refrigerators, and when the concentration is high, plants become suffocated and a major factor in reducing freshness. It is also beneficial to decompose ethylene gas (C ₂ H ₄ ).

この式（２）は水蒸気が分解される化学式である。理論上、この水素と酸素の結合する結合エネルギーは（４．５ｅＶ）程度であるのでこの値以上のエネルギーに加速された電子で分子結合を切断することが可能となる。
本発明では、立ち上がり時間の短い急俊なパルス電圧をパルス電圧発信機４で印加して発生した高電場により、結合エネルギー（４．５ｅＶ）を越える加速された電子のエネルギーを短時間で繰り返し得ることが可能となり、この繰り返しで上記式（２）の化学式の通り水の分解が進行する。
上記化学反応によって、水がなくなり室内の空気を乾燥させることができるので、高湿状態にあった室内の空気を乾燥させて快適な湿度の室内環境を整えることが可能となる。

This formula (2) is a chemical formula by which water vapor is decomposed. Theoretically, the bond energy for bonding hydrogen and oxygen is about (4.5 eV), so that it is possible to break the molecular bond with electrons accelerated to an energy higher than this value.
In the present invention, accelerated electron energy exceeding the binding energy (4.5 eV) can be repeated in a short time by a high electric field generated by applying a steep pulse voltage with a short rise time by the pulse voltage transmitter 4. By repeating this, water decomposition proceeds according to the chemical formula of the above formula (2).
By the above chemical reaction, water is exhausted and the indoor air can be dried. Therefore, the indoor air in a high humidity state can be dried to prepare a comfortable indoor environment with humidity.

この式（３）は二酸化炭素が分解される化学式である。理論上、この炭素と酸素の結合する結合エネルギーは（５．５ｅＶ）程度であるのでこの値以上のエネルギーに加速された電子で分子結合を切断することが可能となる。
本発明では、立ち上がり時間の短い急俊なパルス電圧をパルス電圧発信機４で印加して発生した高電場により、結合エネルギー（５．５ｅＶ）を越える加速された電子のエネルギーを短時間で繰り返し得ることが可能となり、この繰り返しで上記式（３）の化学式の通り二酸化炭素の分解が進行する。
そして、二酸化炭素が分解されると室内の空気が浄化され、また保冷庫や冷蔵庫内等では生鮮植物の炭酸同化作用による成長を阻害することとなるので長期間の鮮度保持が可能となる。

This formula (3) is a chemical formula in which carbon dioxide is decomposed. Theoretically, the bond energy of bonding between carbon and oxygen is about (5.5 eV), so that it is possible to break the molecular bond with electrons accelerated to an energy higher than this value.
In the present invention, accelerated electron energy exceeding the binding energy (5.5 eV) can be repeated in a short time by a high electric field generated by applying a steep pulse voltage with a short rise time by the pulse voltage transmitter 4. By repeating this, the decomposition of carbon dioxide proceeds according to the chemical formula of the above formula (3).
When carbon dioxide is decomposed, the indoor air is purified, and in a cool box or refrigerator, the growth due to carbon dioxide assimilation of fresh plants is inhibited, so that the freshness can be maintained for a long time.

この式（４）は一酸化炭素が分解される化学式である。理論上、この炭素と酸素の結合する結合エネルギーは（１１．２ｅＶ）程度であるのでこの値以上のエネルギーに加速された電子で分子結合を切断することが可能となる。
本発明では、立ち上がり時間の短い急俊なパルス電圧をパルス電圧発信機４で印加して発生した高電場により、結合エネルギー（１１．５ｅＶ）を越える加速された電子のエネルギーを短時間で繰り返し得ることが可能となり、この繰り返しで上記式（４）の化学式の通り一酸化炭素の分解が進行する。
一酸化炭素は脳の活動を弱める作用があり、この一酸化炭素が分解されることは、脳の活動を正常にすることが可能となる。また空気中の一酸化炭素の濃度が高まった場合には濃度を下げて一酸化炭素中毒になるのを防止するこが可能となる。

This formula (4) is a chemical formula by which carbon monoxide is decomposed. Theoretically, the bond energy of bonding between carbon and oxygen is about (11.2 eV), so that it is possible to break the molecular bond with electrons accelerated to an energy higher than this value.
In the present invention, accelerated electron energy exceeding the binding energy (11.5 eV) can be repeated in a short time by a high electric field generated by applying a steep pulse voltage with a short rise time by the pulse voltage transmitter 4. By repeating this, the decomposition of carbon monoxide proceeds according to the chemical formula of the above formula (4).
Carbon monoxide has the effect of weakening brain activity, and the decomposition of this carbon monoxide makes it possible to normalize brain activity. Further, when the concentration of carbon monoxide in the air is increased, the concentration can be lowered to prevent carbon monoxide poisoning.

  The reactions shown in the above chemical formulas can occur even with ozone or ultraviolet light, but in the present invention, they are not due to ozone or ultraviolet light. Does not occur.

Microscopic life forms such as viruses and bacteria that are harmful to the human body in the air are also made of molecular bonds of organic matter, so the molecules are broken down to destroy the cell structures of the fine life forms and die.
Further, an organic gas that emits a bad odor is deodorized as a result of being decomposed into a gas such as odorless carbon, oxygen and hydrogen.
At the same time, water molecules in the space, which is one of the factors that increase the discomfort index, are decomposed into oxygen and hydrogen molecules (see Chemical Formula 2 above). At that time, oxygen (O ₂ ) and hydrogen (H ₂ ) are regenerated. Since they are not coupled (combusted), water (H ₂ O) disappears and the humidity of the air is repeatedly reduced by the circulation of the air.

Next, an air purification drying apparatus for carrying out the above air purification drying method will be described.
As shown in FIGS. 2 and 3, the air purifying and drying apparatus of the present invention is a flat surface that can pass air through a mesh or a lattice-like gap in an air circulation path 5 in a room or in a wind tunnel. An internal electrode 1 made of stainless steel having a spread, and external electrodes 2 and 3 provided so as to surround the front and back surfaces of the internal electrode 1 from outside are provided with a pulse voltage transmitter 4 for applying a pulse voltage, The electrodes 1 and the external electrodes 2 and 3 are connected to current-carrying circuits 6 and 7 of the respective electrodes, and the external electrodes 2 and 3 are connected to the ground 8.

More specifically, as shown in FIG. 3 and FIG. 4, a planar internal electrode 1 having a breathable net-like or lattice-like spread is formed inside, and both front and back sides are vented in the same manner as the internal electrode 1. In order to maintain a uniform spacing so as to be covered by the planar external electrodes 2 and 3 having a mesh-like or lattice-like spread having the property, the following configuration is adopted.
That is, there are provided insulating frames 9, 10 and 11 of a plastic insulating material having outer diameters substantially the same so as to overlap the inner electrode 1 and the outer electrodes 2 and 3 having a larger diameter than the inner electrode 1, Between the insulating frames 9, 10, 11 of the plastic insulating material, spacing holding frames 12, 13 having substantially the same diameter so as to overlap with the insulating frames 9, 10, 11 are arranged and secured between the circular shapes of the plastic insulating material. The holding material 14 is disposed between the internal electrode 1 and the mesh surface of the external electrodes 2 and 3 at an appropriate interval.
Then, the screw holes 9a, 10a, 11a, 12a, 13a and 14a are provided in the insulating frames 9, 10, 11 and the interval holding frames 12, 13 and the gap holding material 14 so that they can penetrate in an overlapping state. Then, a fixing screw 15 made of plastic insulating material is inserted into each screw hole 9a, 10a, 11a, 12a, 13a, 14a, and a nut 16 made of plastic insulating material is screwed onto the protruding end of the fixing screw 15. The internal electrode 1 and the external electrodes 2 and 3 are fixed at a uniform interval.
Further, as shown in FIG. 2, a pulse voltage transmitter 4 connected to an AC power source 17 is connected to the internal electrode 1 and the external electrodes 2 and 3.
The connection is made by connecting the energization circuit 6 of the internal electrode 1 to the pulse voltage transmitter 4 and connecting the two energization circuits 7a and 7b of the external electrodes 2 and 3 to the single energization circuit 7 to transmit the pulse voltage. Connect to machine 4.
The energization circuit 7 b of the external electrode 3 is connected to the ground 8.
Then, an electrode portion including the internal electrode 1 and the external electrodes 2 and 3 is installed in the air circulation path 5.

The porosity of the internal electrode 1 and the external electrodes 2 and 3 which are a net-like or grid-like plane is set so as not to impair the air permeability according to the flow rate or flow velocity of the air. All the void ratios are determined based on the internal electrode 1 or the external electrodes 2 and 3 that have the same void ratio in both of the two or 3 or the minimum void ratio among them.
The outer diameters of the internal electrode 1 and the external electrodes 2 and 3 are determined according to the flow rate of air and the size of the target device to be attached, but are about 30 to 80 cm when attached to an indoor air conditioner.
In this case, the thickness of the gap holding frames 12 and 13 and the circular gap holder 14 is 1 mm, and the gap between the internal electrode 1 and the external electrodes 2 and 3 is 1 mm. The smaller this gap, the higher the performance. In consideration of ensuring uniformity in actual production, about 0.5 mm to 1.5 mm is preferable.

In the present invention, the pulse voltage applied to each of the electrodes differs depending on the distance between the internal electrode 1 and the external electrodes 2 and 3 and the area of the electrode plane. For example, the electrode diameter is 30 cm, When the interval is 1 mm, the rising time of the applied pulse voltage is set to 5 microseconds or less, and the pulse output voltage is set to 500 V to 2 kV.
The pulse width should be small. As shown in the upper waveform in FIG. 5, the optimum pulse rise time is about 0.1 to 0.5 microseconds when the load electrode is connected, and the pulse output The optimum voltage is about 0.5 kV to 2 kV.

The reason why the smaller pulse width is better is that the time integral value of the pulse voltage waveform corresponds to the pulse power loss, and therefore, the smaller the pulse width, the lower the power consumption.
Further, increasing the pulse repetition frequency increases the decomposition rate of toxic gases and the like, and accordingly, a higher sterilization and deodorization effect can be obtained. However, when the frequency is increased, the power consumption is also increased, and in addition to this, other circuit elements are included in the pulse voltage generation circuit, so that the system becomes complicated and there is a limit to the increase. However, in the present invention, since a voltage lower than the voltage for generating plasma discharge is applied to the internal electrode 1 and the external electrodes 2 and 3, no current flows, so that power consumption is extremely small and the frequency is increased. Even if the power consumption is increased, the operation cost is not greatly affected.

Next, the electrode of the present invention will be described in more detail.
In the present invention, as shown in FIG. 2, the electrode is composed of two electrodes of the internal electrode 1 and the external electrodes 2 and 3, and as shown in FIG. 3, the external electrodes 2 and 3 are internal to which a high voltage is applied. The electrode 1 is completely encased and grounded.
The internal electrode 1 and the external electrodes 2 and 3 have a wide area, and the surface is set to a high porosity so as to obtain air permeability. For this reason, as shown in FIGS. 2 and 3, a mesh-like or lattice-like electrode material is used.
The distance between the electrodes is constant everywhere so that a high voltage is uniformly applied between the two electrodes. For this reason, the electrode material may be in the form of a honeycomb or a circular hole plate in which circular holes of the same diameter are aligned at the same interval in addition to the mesh shape or lattice shape shown in FIG. In order to set the interval, it is preferable that the cross-sectional shape has no irregularities.
The distance between the internal electrode 1 and the external electrodes 2 and 3 is preferably as small as possible. However, when manufacturing, if the distance is small, it is difficult to keep the distance uniform.
When the pulse voltage applied to the internal electrode 1 and the external electrodes 2 and 3 is increased, a dielectric breakdown occurs, plasma discharge is generated and energized, and there is no gap between the surfaces of the internal electrode 1 and the external electrodes 2 and 3. Even in a uniform case, there is a possibility that plasma discharge is generated intensively at the minimum interval portion and energized.
When plasma discharge occurs, the high electric field disappears at that moment, and a high electric field with a high voltage that can break the molecular bond cannot be obtained.

When the diameters of the internal electrode 1 and the external electrodes 2 and 3 are 100 cm or more, it is difficult to maintain the flatness, and it is necessary to devise such as increasing the spacing material for maintaining the uniformity. However, when the diameter of the electrode surface is 50 cm or less, it is easy to manufacture if the distance is about 1 mm.
For example, a 30 cm diameter stainless steel electrode having a uniform interval of about 1 mm does not normally energize due to air breakdown even when a pulse voltage of 2 kV is applied under normal temperature pressure. However, depending on the conditions, it may be possible to energize after breakdown, and in this case, it is possible to cope by lowering the pulse voltage and resetting the applied voltage so that dielectric breakdown does not occur.

  The electrical impedance of the electrode needs to be as small as possible. If the load impedance is large, the high frequency component of the pulse, that is, the component with a short rise time, will cause current to flow quickly, making it impossible to obtain a high electric field. As a result, the chemical substances in the electrode can be sufficiently decomposed. become unable. Therefore, in order to generate a high electric field, the electrical impedance is reduced to generate a high voltage pulse with a short rise time (high steepness) as shown in the upper waveform in FIG. It is necessary to set the pulse voltage so that it does not occur.

  Further, in the present invention, the internal electrodes 1 to which a high voltage is applied are completely encased by the external electrodes 2 and 3, so that electromagnetic noise due to an electric pulse that may be generated between the electrodes is It is possible to completely prevent the emission of electromagnetic noise to the outside without leaking out of 3.

In the air purifying and drying apparatus for generating a high electric field of the present invention, harmful chemical substances are decomposed by electrons accelerated in the high electric field, but no harmful gas such as ozone is generated. For this reason, when the air purifying and drying apparatus of the present invention is used in a cool box for fresh produce, vegetables are not discolored by ozone, and the equipment in the warehouse does not change, and ultraviolet rays are not used, which is caused by ultraviolet rays. No discoloration will occur.
In addition, when the air purification / drying device of the present invention is installed in a residential room, it should sterilize harmful viruses and bacteria, erase unpleasant odor chambers, and also decompose water in the air. This makes it possible to realize a refreshing and healthy living space.

Experiments were conducted to confirm the sterilization function of the present invention.
Two translucent plastic boxes 55cm long, 41cm wide and 36.5cm high, each equipped with a fan with a diameter of 12cm, and about 1045g (6) bananas on one side "Box 1" On the other hand, 1235 g (seven) “box 2” was charged and the temperature was kept at room temperature. One “box 1” was not equipped with the apparatus of the present invention, and the other “box 2” was operated with the apparatus of the present invention in which the diameters of the external electrodes 2 and 3 were 30 cm.
The experiment started on November 28 and ended on December 18.
As a result, in the measurement on December 18, the banana of the “box 1” without the device of one of the present invention was reduced in moisture to a weight of 945 g, but the “box with the other device attached” The banana of “2” had a large decrease in moisture and weighed 844 g.
In the visual observation of the surface of the banana at this time, most of the surface of the banana in “Box 1” without the device of the present invention turns black, and about 20% of the surface is white and moldy. It was rotten in a covered state. However, the surface of the banana in the “box 2” equipped with the other device of the present invention was discolored entirely in black, but almost no mold was generated. And when peeled, it became a yellow ripe banana.
From this, the sterilization function of the apparatus of the present invention was confirmed.

An experiment was conducted to confirm the deodorizing function of the present invention.
Prepare two translucent plastic boxes with a length of 55 cm, a width of 41 cm, and a height of 36.5 cm as in the experiment for confirming the sterilization function, and without attaching the device of the present invention to one box, The other box was equipped with the apparatus of the present invention in which the diameters of the external electrodes 2 and 3 were 30 cm.
Cigarette cigarettes were cut in half in both boxes and ignited cigarettes were put in, and the boxes were sealed with lids.
When the cigarette burned out, I opened the lid a little and smelled the smell at that time and remembered the smell unique to tobacco.
Thereafter, the apparatus of the present invention was operated for 35 minutes and the odor was confirmed again. The confirmation was made by opening the lid and sniffing the smell in the box directly with the nose.
As a result, the box equipped with the apparatus of the present invention was free of cigarette odor, and the white smoke disappeared and the box was transparent. However, in the box without the device of the present invention, the odor of the cigarette is almost the same as the original, and the white smoke is almost the same as the original with the white smoke remaining in an opaque state. From this, the deodorizing function in the apparatus of the present invention was confirmed.

An experiment was conducted to confirm the drying function of the present invention.
Prepare a translucent plastic box with a length of 55 cm, a width of 41 cm, and a height of 36.5 cm, which is the same as the experiment for confirming the sterilization function, equipped with a fan with a diameter of 12 cm, and an ethylene gas measuring instrument. The apparatus of the present invention in which the diameters of the external electrodes 2 and 3 were 30 cm was mounted on the box.
And 6 bananas were put in the box, the lid was sealed, and the temperature was kept at room temperature.
As a result of this experiment, the data shown in FIG. 6 was obtained.
On / off indicated by black squares in FIG. 6 indicates the timing for opening and closing the switch for operating the apparatus.
In this experiment, every time the apparatus of the present invention was operated, the humidity decreased from about 90% to 60%, which confirmed that the present invention has an excellent drying function.
Moreover, when the measurement result by an ethylene gas measuring device is seen, whenever the operation | movement of the apparatus of this invention is stopped (off), the gas density | concentration of the ethylene gas generated from the banana will rise, and it will be 150- The gas concentration increased to about 200 ppm decreased to 0 ppm, and it was confirmed that the ethylene gas generated from the banana was reliably decomposed.

  The present invention is used for the purpose of purifying and drying indoor air alone or attached to an air conditioner or the like, but because of the effect of decomposition and sterilization of ethylene gas, fresh foods such as vegetables and fruits, In order to preserve plants such as florets for a long period of time while maintaining the initial freshness, they can also be installed in florets storage rooms, showrooms, and fresh food refrigeration stores.

DESCRIPTION OF SYMBOLS 1 Internal electrode 2 External electrode 3 External electrode 4 Pulse voltage transmitter 5 Air circulation path 6 Internal electrode energization circuit 7 External electrode energization circuit 7a Upper external electrode energization circuit 7b Lower external electrode energization circuit 8 Ground 9 Insulating frame 9a Screw hole 10 Insulating frame 10a Screw hole 11 Insulating frame 11a Screw hole 12 Space holding frame 12a Screw hole 13 Space holding frame 13a Screw hole 14 Circular space holding body 14a Screw hole 15 Fixing screw 16 Nut 17 Power supply

Claims (3)

  Air containing suspended matter is allowed to pass between the electrodes, and the rise time is lower than the voltage that allows the molecular bonds of the suspended matter to be broken at the electrode, and lower than the voltage that breaks the air insulation and generates discharge. A short and abrupt pulse voltage is applied, an instantaneous high electric field is generated between both electrodes in a pulse period, and electrons accelerated by the high electric field are caused to collide with floating molecules existing between the two electrodes. It breaks down molecules, kills living organisms in the air by destroying cells, and decomposes organic gases that emit bad odors into odorless gas, which enables sterilization and deodorization and water in the air. A method for purifying and drying air, wherein the molecules are decomposed to allow air to be dried.   An apparatus for purifying and drying air for carrying out the method for purifying and drying air according to claim 1, wherein the air circulation path has a planar extension so as to partition the air circulation path, and the plane is reticulated or A grid-like air-permeable internal electrode and a net-like or grid-like air-permeable external electrode provided so as to surround the front and back surfaces of the internal electrode from the outside are installed. A purifying and drying apparatus for air, wherein a pulse voltage transmitter for transmitting a pulse voltage when the power source is energized through an energization circuit is connected, and a ground is connected to the external electrode.   When the interval between each surface of the mesh-like or grid-like internal electrode and external electrode is 1 mm, the rise time of the applied pulse voltage is 5 microseconds or less, and the pulse output voltage is 500 V to 2 kV. The air purification drying apparatus according to claim 2.

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