KR102058310B1 - Plasma Sterilizing-Laundry System - Google Patents

Abstract

The present invention relates to a sterilization-washing machine using sterilization and organic matter decomposition functions of plasma. Provided is a plasma washing machine in which washing is performed by high-dissolved ozone water by a gas ozone circulating manner, a plasma generator and a cryostat of a washing tank. The plasma washing machine is secured by preventing ozone outflow and circulating removal of residual ozone during water supply and drainage.

Description

Plasma Sterilizing-Laundry System

The present invention relates to a plasma sterilization-washing machine having washing and sterilization and deodorizing functions by organic decomposition using plasma.

In particular, the present invention relates to the provision of an eco-friendly washing machine which minimizes the use of detergent or does not use detergent in a small mini washing machine and a medium washing machine and / or a large washing machine for a professional laundry.

Plasma ozone washing machines were developed in the United States and United Kingdom as industrial detergent-free washing machines from the late 1980s to the early 1990s. As of 2010, about 4,000 ozone washers are in industrial installations in the US and UK. Installation places are hospitals, hotels, prisons, health centers and nursing homes.

Industrial ozone washers in the United States and the United Kingdom are described in the following references:

[Ref.-1] Rip G. Rice, et. al., "The Ozone Laundry Handbook: A Comprehensive Guide for the Proper Application of Ozone in the Commertial Laundry Industry", Ozone: Science & Engineering, 31: 339-347, (2009).

[Ref.-2] D. Cardies, et. al., "Ozone in the Laundry Industry-Pratical Experiences in the United Kingdom", Ozone: Science & Engineering, 29: 85-99, (2007).

According to the above reference paper, industrial ozone washing machines in the United States and the United Kingdom have (1) reduced water consumption and reduced power consumption, (2) shortened washing time, (3) eco-friendly (improved pollution of water environment by detergent), The technology has already been proven in terms of (4) ozone safety, (5) washing effect, (6) sterilization effect, etc.

The industrial ozone washing machine uses an ozone generator installed separately from the main body of the washing machine: (1) preparing ozone water in a space separated from the washing machine and injecting it into the washing tank, and (2) ozone of the ozone generator. It is classified in such a way as to inject directly by diffusion into the washing tank.

1 is a conceptual diagram of an industrial ozone washing machine of the United States and the United Kingdom and the ozone washing machine of the present invention. Figure 1 (a) is a method of circulating the ozone water by the boosting pump and the Venturi injector between the washing tank and the ozone water tank. Figure 1 (b) is a method of directly injecting ozone water into the washing tank by producing ozone water circulating in the ozone water tank using a boost pump and a Venturi injector. Figure 1 (c) is a method of injecting gas ozone into the washing tank by the pressure of the boost pump. Figure 1 (d) is a gas ozone circulating injection method of the present invention, a conceptual diagram of a circulating injection method of the non-pressurized gas ozone between the ozone generator and the washing tank.

The ozone generators (Fig. 1 (a)-Fig. 1 (c)) of the industrial ozone washing machine have an alternating voltage of 10 kV in a cylinder tube of a Volume Dielectric Barrier Discharge (V-DBD) type by an opposite electrode. Use the traditional way of authorizing. On the other hand, Figure 1 (d) of the present invention employs a surface-dielectric barrier discharge (S-DBD) surface-plasma panel, and is driven at a low voltage of about 1 kV AC voltage.

In the ozone water circulation system of FIG. 1 (a), ozone water is circulated between the ozone water tank and the wash water tank by inducing water supplied to the wash water tank to the outside. The ozone water of the washing tank and the gas ozone of the ozone generator are manufactured in a ozone contact tank using a booster pump using a Venturi injector. At this time, the ozone generator continuously supplies external air through a separate air preparation device. Therefore, since the gas ozone is continuously injected into the ozone contact tank by the boost pump, the internal pressure of the ozone contact tank is increased to produce high concentration ozone water. The concentration of ozone water in the ozone contact tank depends on the pressure of the boost pump. When the ozone water in the washing tank reaches a certain concentration, the circulation of the ozone water is stopped and the washing process is carried out. The ozone water concentration of the washing tank naturally decreases during the washing process for a predetermined time. This is because ozone water has a life time of about 15 minutes when ozone in the water is converted to oxygen. Therefore, since most of the gas ozone inside the washing tank is dissolved in water during the discharge of low concentration ozone water in the drainage process and the subsequent rinsing process, the remaining gas ozone becomes less than the allowable concentration of the discharge and opens the door. That is, there is no need to remove the gas ozone separately because gas ozone does not remain for a sufficient washing process time.

Figure 1 (b) is a method of producing a high concentration ozonated water circulating outside the washing tank to supply ozone water to the washing tank. It is a method of producing high-concentration ozone water in the ozone contact tank by pressurizing the water in the water supply pipe and the gas ozone in the ozone generator.

Figure 1 (c) is a method of washing by high concentration ozone water by injecting gas ozone directly into the washing tank in a pressurized manner. 1 (a) -1 (b), the peripheral device is relatively simple since there is no separate ozone contact tank. Since the gas ozone is continuously injected directly into the closed washing tank for a predetermined time, the internal pressure of the washing tank increases. Therefore, a high pressure infusion pump is essential. The residual gas ozone after washing is dissolved in water during the washing process for a sufficient time as in FIGS. 1 (a)-(b) and is naturally extinguished and controlled below the emission standard so that the remaining gas ozone is not treated. .

1 (a) to 1 (c), the industrial washing machine produces high concentration ozone water in a pressurized manner. The pressurization method adopts the principle that gas ozone has high solubility under high pressure. Therefore, in order to continuously supply the outside air or the highly concentrated oxygen to the ozone generator for a predetermined time at the same time as the high pressure pump, a considerable volume of air reserve device is required. In addition, since the pressure is limited depending on the capacity of the boost pump, it is a disadvantage that it is limited to the ozone water production time and solubility. In the above, an air reserve (or oxygen concentrator) device, a large ozone generating device, and a high pressure pump for maintaining high pressure in the washing tank are essential, and these devices make it impossible to implement a general household washing machine.

The industrial washing machine is not limited to washing time and space. However, in the case of a domestic washing machine, there are restrictions on washing time and washing machine volume. 1 (a) to 1 (c) are not suitable for general home use for the following two reasons. First, the miniaturization of the ozone generator is not realized. In order to satisfy the space constraints of the conventional domestic washing machine, the realization of a compact ozone generating apparatus should be prioritized. Secondly, the washing time of household washing machines is limited. It is difficult to realize a domestic washing machine to make a long time washing time so that the production time of high concentration ozone water and the concentration of residual ozone after washing become below an emission allowance. Reference paper [1-2] also describes that industrial ozone washing machines are difficult to apply to domestic washing machines.

1 (d) is a conceptual diagram of the ozone washing machine of the present invention. An ozone generator with a built-in plasma panel is installed on one outer wall of the washing tank. Gas ozone from the ozone generator is injected into the washing tank through a small fan-type pump, and undissolved gas ozone is recovered into the ozone generator to circulate dissolve the gas ozone in the washing tank. Therefore, washing is performed by high concentration ozone water and gas ozone. Since the gas inside the washing tank and the ozone generator is circulated with ozone, the pressure of the washing tank maintains the quasi-atmospheric pressure, which eliminates the need for a high pressure pump. In addition, by circulating the internal gas, no separate air supply is required. Therefore, a separate air supply and a boost pump are unnecessary. Since a small ozone generator is attached to the outer wall or the inner wall of the washing tank, a separate space is not required, so a general household washing machine is possible.

The internal pressure of the ozone washing machine of the present invention of FIG. 1 (d) is quasi-atmospheric pressure, and is more disadvantageous for the production of high concentration ozone water than the method of dissolving gas ozone by high pressure in water. However, by continuously injecting gas ozone into the water continuously for a predetermined time, the contact time between the water and the gas ozone is sufficient to produce a high concentration of ozone water for washing under atmospheric pressure or near atmospheric pressure. In addition, there is a characteristic of having a sufficient ozone washing effect by the gas ozone itself, in addition to ozone water, since the laundry that rotates and swings in water and the gas ozone injected in a circulating manner react with each other to have a washing effect with the gas ozone itself. . However, residual gas ozone after washing should be treated separately.

Washing technology of sterilization and deodorization function using plasma has been proposed at home and abroad, but a household plasma washing machine with a washing function is not realized.

Table 1 includes the special 1990-0010581 It is a list that summarizes the conventional plasma washing machine technology (Patents [1]-[10]) and the technology (patent application [11, 12]) proposed by the present inventors in the order of filing year.

Plasma washing machines are actually ozone washing machines and are divided into four types. (1) Method of injecting ozone water prepared by mixing water and ozone outside the washing tank [1, 4,], (2) Method of preparing ozone water injecting gas ozone directly into the washing tank [3, 6, 11 , 12], and (3) the production of ozone water directly from washing baths [7, 8]. In addition, (4) a method of blowing gas ozone into the washing machine is a method of applying a deodorizing and sterilizing function to the washing machine, not the purpose of washing [2, 5, 9, 10].

The ozone water circulation formula of (1) or the gas ozone injection method of (2) is similar or the same as that of the conventional industrial ozone washing machines of the United States and United Kingdom.

The ozone generation of the washing machine is divided into three types: (1) electrolysis of water [1, 7], (2) underwater discharge [7, 8], and (3) silent discharge (dielectric barrier discharge). [2, 5, 6, 11, 12].

The washing effect and washing time of the ozone washing machine depend on the concentration of ozone water. The production of high concentration ozone water requires a large amount of high concentration ozone generator.

The prior art patents [1, 7, 8] of Table-1 are electrolytic washing machines. The main reaction of the electrolysis of water in the washing machine bath is 2H ₂ O → O ₂ + 2H ₂ . Oxygen is generated at the anode and hydrogen is generated at the cathode. In this case, ozone (O ₃ ) and OH, which are incidentally generated besides oxygen at the anode, are applied to laundry. However, since high concentrations and large amounts of ozone and OH are not easily generated, they are limited to a slight sterilization and deodorization function rather than a washing effect.

In a method of producing high concentration ozone water in a washing tank, a method of injecting ozone water mixed with water and ozone into a washing tank [patents 1 and 4] is generally the most widely used ozone water preparing method. This method requires a large concentration ozone generator and a large gas-liquid mixer that mixes ozone and water. Therefore, in order to implement a high concentration ozone water washing machine, the volume of the ozone generator and the gas-liquid mixer is increased beyond the washing machine body. That is, a small amount of ozone water produced using a small ozone generator and a gas-liquid mixer is difficult to achieve the washing effect by applying to a washing machine having a relatively large volume. In addition, a large ozone generator is required to produce a high concentration of ozone water having a sufficient washing effect even by injecting a gas ozone conventionally presented into a washing tank to produce ozone water [Patents 3 and 6]. The method of producing ozone water directly in water [patent 7, 8] also has a limitation in producing a high concentration of ozone water in the washing tank.

In the ozone generation method, it is almost impossible to produce high concentration ozone water by electrolysis of water or discharge in water. However, although the silent discharge method used in the conventional ozone generator is feasible for the application of a washing machine, a large ozone generator is required as described above. Such a large capacity device is a crucial reason why washing with ozone water according to the prior art is not realized. Therefore, until recently, the ozone washing machine has been proposed as a washing machine (patent 2, 5, 9, 10) of auxiliary means having deodorizing and sterilizing functions rather than washing purposes.

The miniaturization of the ozone generating device is presented in "Application No. 10-2018-0144389 (High Concentration Ozone Plasma Panel)" [Patent Application 13] by the present inventor. The present invention seeks to realize a small household ozone washing machine using this panel technology.

Plasma washing machines [patent applications 11, 12] proposed by the present inventors are capable of washing with a high concentration of ozone water in a washing machine tank by using a small-scale plasma generator in a circulating dissolution method of gas ozone. It is possible to present a technique [patent application 12] which processes within a short time (1 to 2 minutes) by a cyclical removal method of residual gas ozone after washing, without discharging the remaining ozone of the washing tank through the ozone depletion apparatus of the conventional gas ozone. . However, problems such as washing efficiency and reliability as a washing machine and safety for ozone still remain to be solved in realizing a plasma washing machine.

Meanwhile, ozone water treatment and wastewater treatment technologies have a history of 100 years. In addition, techniques for decomposing organic matter and producing ozone water using ozone are also known.

Fig. 2 is a schematic diagram of a technique using ozone: Figs. 2 (a) and 2 (b) are schematic diagrams of tap water treatment and wastewater treatment techniques of a conventional water treatment plant. Figure 2 (c) is a technique for cleaning the equipment for producing a liquid product. 2 (d) is an example of an ozone water production apparatus.

2 (a) and 2 (b) show a water treatment system having a history of 100 years. 2 (a) is an acid-based purified water and wastewater treatment system. Gas ozone is injected into the bubbler at the bottom of the tank to treat incoming water (raw water) by ozone contact. Figure 2 (b) is a method of mixing the influent and gas ozone by injector using a pressure pump injecting the influent into the ozone reaction tank. In addition to the method of FIG. 2 (a) and FIG. 2 (b) in the purified water and wastewater treatment method using ozone, ozone water circulation system was also introduced.

Figure 2 (c) is a system for cleaning the equipment for producing a liquid product. This technique is a technique introduced in Japanese Patent Laid-Open No. 2017-221927 (December 21, 2017). This technology cleans equipment for manufacturing liquid products, beverages, liquid foods, liquid semi-solid foods, cosmetics, pharmaceuticals, quasi-drugs, hygiene products, and the like. It is a facility internal cleaning technology that removes organic matter remaining in the pipes and the tampon of the facility producing these products. In order to decompose specific organic substances, a predetermined liquid detergent is flowed into the equipment in a circulating manner, and the cleaning agent of the liquid phase is degassed using ozone in an ozone contacting tank during the circulation of the cleaner, and the inside of the manufacturing equipment is cleaned by degassing and organic material decomposition. At this time, the liquid detergent uses various cleaning liquids such as sodium hydroxide, sodium hypochlorite, surfactants and acid cleaners, nitric acid, etc. according to the alkaline cleaning method and acidic cleaning method, and a cleaning solution such as sodium hypochlorite is used for sterilization. . These washing water is injected into the manufacturing facility to remove the organic matter inside the equipment. In this way, the organic solution is injected into the ozone contact tank by washing the reaction solution with the washing water to degas and decompose the organic material to clean the interior of the manufacturing equipment. The circulation of this washing liquid is similar to the ozone water circulation.

Figure 2 (d) is an example of the ozone water production method. In general, the production of ozone water mainly uses the method of FIGS. 2 (a) and 2 (b), and in addition, a method of circulating ozone water may be used. Figure 2 (d) is a technique introduced in the present inventors patent application 10-2018-0012919 (plasma dissolved water production apparatus), a method of producing ozone water in a gas ozone circulating type, which is used in the general washing machine of the present invention It is similar to the gas ozone circulating method.

The action of ozone in the plasma washing machine by the sterilization and deodorization action of the ozone generated in the atmosphere or oxygen plasma of the present invention and the decomposition of organic matter is known as follows.

(A) Most bacteria and virus are sterilized by high concentration ozone gas and ozone water within 5 to 10 minutes.

(B) 99% of microorganisms are inactivated within 1 to 5 minutes in 0.1 to 0.3 mg / L of ozone water.

(C) It is excellent in removing color and turbidity and odor by high concentration ozone water.

(D) Organic matter is decomposed into inorganic matter by reaction with ozone and ozone water.

(E) The unsaturated bonds (double and multiple bonds) of organic compounds are converted into saturated organic compounds, and in the process, hardly decomposable and toxic substances are decomposed, thereby improving biodegradability and reducing toxicity.

(F) The high molecular compound becomes low molecular weight.

(G) Biodegradable organics are converted to biodegradable organics, increasing the BOD / COD ratio.

(H) Hydrophobic organics are converted to hydrophilic organics.

(I) Organic substances decomposable by ozone are acetylene, olefin unsaturated organic compounds, aromatic compounds, amines, sulfides, sulfonic acids, phosphates, alcohols, ethers, aldehydes and the like.

(C) In the case of minerals, iron, manganese, cyan and the like are treated.

(K) In the case of dyeing dye, it takes about 5 to 10 minutes at high concentration to decompose.

(C) Surfactants such as synthetic detergents and soaps are also easily decomposed by ozone water. An object of the present invention is to decompose and wash an organic component of a laundry by using such action of gas ozone and ozone water.

In order to realize a general-purpose plasma washing machine as described above, (i) the added devices must not significantly exceed the volume of the conventional washing machine, (ii) the same or more washing effect as the conventional detergent washing machine, and (iii) the conventional It should be shorter than the washing time of the washing machine.

In order to realize a general domestic plasma washing machine, the smaller the volume of the ozone generator is, the better. In particular, the household plasma washing machine should not deviate significantly from the existing volume. In addition, the production time of high concentration ozone water in the washing tank should be achieved within a few minutes, the ozone water washing process should also be achieved within a short time of about 10 minutes.

The following is to derive the core problem through the related experiments using the mock-up produced by applying the technology [patent application 11, 12] proposed by the present inventors, and to propose a solution to provide a plasma washing machine of a complete technology I would like to.

The key technical details of the plasma washing machine of the present invention are summarized as follows.

1. High concentration ozone generation technology in plasma generator less than 1/10 of wash tank volume.

2. High concentration ozone water control technology by controlling plasma generator and temperature of washing tank.

3. Circulating gas ozone injection technology for high concentration ozone water control.

4. Removal of water flowing into the plasma generator in the gas ozone circulation injection method. In particular, the maintenance technology of the ozone generation amount by blocking the inflow of water to the plasma generating device by the backflow of the foam generated in the process of washing the oil component laundry and detergent mixture.

5. Drainage and ozone leak-proof technology in the washer of sealed structure.

6. Technology to remove residual ozone gas in washing tank after completion of washing process within a short time.

1 to 3 are problems of the washing effect of the plasma washing machine, and 4 to 6 are problems of reliability and safety of the plasma washing machine, which are problems to be solved for commercialization of the plasma washing machine.

It provides a solution to the above problems 1 to 6.

1. Atmospheric pressure plasma generator technology to be applied to washing machine.

The present invention applies surface-dielectric barrier discharge (S-DBD) mutatis mutandis. Details of this are described in the applicant's patent application "Application No. 10-2018-0144389: High concentration ozone plasma panel" [Patent Application-13].

Electrodes are formed on the upper and lower surfaces of the dielectric layer, respectively. The structure in which two electrodes formed on the upper and lower surfaces of the dielectric layer overlap on the cross section (width w _o of the overlapping electrode) has been proposed in Japanese Patent [5, 6], but in this case, the applied power increases due to the increase of capacitance, thereby causing heat to the electrodes. It is an undesirable structure as the occurrence increases. The discharge method employed in the present invention is the most preferred structure among the S-DBD methods, which is (1) a structure in which there is no overlapping portion of two electrodes on the cross section, and (2) the shape of the electrode edge is projected (square, triangular, needle). (3) The surface of the plasma-type plasma panel, which is secured for long-term use by using a predetermined coating on the electrode surface, is manufactured and used in various forms, and the panel is driven at an AC voltage of about 1 kV at a frequency of several tens of kHz. do.

2. High concentration ozone water control technology by controlling plasma generator and temperature of washing tank.

3 is an ozone concentration experiment inside a plasma generating box having a predetermined volume.

3 (a) is a photograph of the plasma panel used in this experiment. Using a sawtooth rectangular panel, the total length of plasma generation on both the front and back surfaces of the dielectric layer panel is 150 cm, and the panel area is 12x12 cm ² . The drive voltage is about 1 kV at a frequency of several tens of kHz and the input power is about 50 W.

Fig. 3 (b) is a schematic diagram of the plasma generator experiment. The ozone concentration is measured for 20 L (liter), 10 L and 2 L of the inner product of the box-shaped plasma generator. The laboratory atmosphere temperature is 20 ^o C.

Figure 3 (c) is a graph of the ozone concentration (ppm) and the generation time (minutes, min) of the experimental results. The ozone concentration during the first minute is inversely proportional to the volume of the ozone generator box (20 L, 10 L, and 2 L), and the ozone generation rates are 400, 750 and 900 (ppm / min), respectively. In the case of 20 L by volume, the ozone generation rate hardly changes. However, in small volume 10 L and 2 L boxes, the ozone generation rate decreases rapidly after 2 minutes.

3 (d) is a change of ozone concentration, panel electrode temperature and panel container internal temperature in a 2 L box. If the volume of the ozone generator is small, it is indicated that the ozone generation rate decreases rapidly due to the increase in the temperature inside the container. Usually, after 1 minute of operation time, the temperature rises to 60 ° C or higher after 5 minutes at about 40 ° C. The temperature of the panel electrode rises to 80 ° C. after 5 minutes. As such, the increase in temperature inside the panel and the panel electrode causes a reverse reaction (2O ₃ + (high temperature) → 3O ₂ ) in which ozone is converted into oxygen, which causes a decrease in ozone generation. This experiment suggests that the temperature inside the ozone generator should be kept at a low temperature.

The experiment of FIG. 4 is an experiment of ozone generation | concentration, internal temperature, and electrode part temperature change of the small plasma generating apparatus which has a 1/10 inner product of the washing tank.

4 (a) is a schematic diagram of the experiment. The volume of the bath is 20 L and the amount of water is 10 L. The plasma generator volume was 2 L, and the plasma panel was equipped with one panel used in the experiment of FIG. 3. The laboratory atmosphere temperature is 20 ^o C. Gas ozone generated from the plasma generator is injected into the water tank through the bubble generator at the bottom of the tank through a fan-type motor pump to prepare ozone water. Produces high concentration ozone water.

Figure 4 (b) is a test result of the ozone water concentration change with respect to the panel container internal temperature and the tank internal temperature change. In this experiment, the ozone water concentration decreased from the highest 0.25 mg / L after 10 minutes due to the increase of the temperature inside the panel container and the water tank.

Figure 4 (c) is the ozone water concentration graph for the measurement time by keeping the temperature of the water tank and water at low temperature by putting ice in the water tank, installing an ice pack around the panel container to maintain the inside temperature of the panel container below 20 ℃ to be. After 5 minutes of measurement, the concentration of ozone water reaches 1.0 mg / L, and after 20 minutes, 1.7 mg / L of high concentration ozone water is produced. This experiment shows that maintaining the internal temperature of the water tank and plasma generator at low temperature for the production of high concentration ozone water is a very important factor in the realization of plasma washing machine.

According to the experimental results of FIGS. 3 and 4, heat dissipation measures for maintaining the water temperature of the plasma generator and the tank at a low temperature are as follows. (1) Put the plasma generator placed on the side of the outside of the washing tank in water and adopt water cooling heat dissipation. (2) Cold water of low temperature is supplied to the plasma generator and the washing tank through the water supply. (3) Separate cooling plates are installed on the outer wall of the tank and the outer wall of the plasma generator. (4) The ice is poured into the washing bath to cool the bath and the plasma generator. By employing one or more of the above (1)-(4) in combination, the plasma generator and bath are kept at a low temperature below 20 ° C. However, low temperature maintenance of the bath and the plasma generator is limited during the plasma washing process time, and low temperature maintenance is unnecessary in the rinsing, dehydration and drying processes.

3. Method of producing ozone water in solid solution concentration by circulating injection of gas ozone:

In the gas ozone circulating system of the present invention, one or more of (1) bubble generator, (2) membrane apparatus for ozone dissolution, and (3) injector using a venturi tube are manufactured at the bottom of the washing tank to prepare a high concentration ozone water.

In the case of a pulsate washing machine, water and gas ozone flow in and out through a plurality of micropores, and the apparatus of the above (1)-(3) is installed in the lower part of the rotating plate.

A drum type washing machine having a horizontal rotating shaft allows water and gas ozone to enter and exit through a plurality of dehydration ports installed in a dehydration tank, and install the apparatus of (1)-(3) below the dehydration tank.

4. Gas ozone circulation type by water absorption filter:

In the case where the oil component mixed with the laundry and the organic material or the detergent are washed in the washing machine, when a bubble is injected into the lower part of the washing tank, a large amount of foam is generated. Such bubbles are introduced into the gas ozone recovery tube to cause a problem of damage to the plasma generator. In order to block the inflow of the plasma generator of the bubble and a large amount of water-containing gas ozone, water is removed from the water absorption filter device at the same time as the blocking wall to inject moisture removal gas ozone into the plasma generator to generate high concentration ozone.

5. Reliability and Safety Issues of Plasma Washers:

(1) Water drainage problems in sealed washers:

In the general washing machine, the door is not completely sealed, and the inside of the tank maintains the atmospheric pressure by entering and exiting the air through the gap of the door. However, the plasma washing machine maintains a completely closed space in order to prevent the problem of high concentration of ozone leaking into the crevice of the washing tank. In the case of the door, it is compressed and installed so that there is no gap in the washing machine. As a result, it is difficult to smoothly inject and drain water during the drainage. That is, water supply becomes difficult due to an increase in the pressure of the water tank at the time of water supply. In addition, the drainage becomes difficult due to the decrease in the water pressure in the drainage. This problem is solved by installing a separate exit. That is, predetermined water is exhausted through the air inlet at the time of water supply, and air is introduced through the air outlet at the time of drainage.

(2) The ozone of the washing tank may leak through the drainage outlet immediately after the ozone is discharged from the ozone water itself during the drainage of the ozone water after the washing process. This problem is to limit the plasma generation time in the washing process to maintain the ozone water concentration before draining. In general, dissolved ozone in ozone water decreases with time, and ozone in water changes to oxygen after 15 to 20 minutes. And ozone water below a certain degree of dissolved ozone is not discharged, and when the ozone water is discharged, it is drained in the state of low dissolved ozone water. In addition, at the time of drainage, the end of the exhaust pipe is installed in the form of a U-shaped tube to prevent leakage of gas ozone.

(3) Securing safety by controlling the tank water injection level:

In the case of a plasma washing machine, maintain a constant water level when supplying water. In addition, the water level of the washing tank rises when the gas ozone is injected in the washing process. Therefore, a device is installed to prevent the backflow of water to the plasma generator and the carbon filter device due to the rise of the water level at the time of water supply and gas ozone injection.

According to the above method, the present invention,

As plasma washing machine,

A door to seal the wash tub;

A washing tank in which water is supplied;

A dewatering tank rotatably disposed in the wash tub to hold laundry and having a plurality of dehydrators;

A plasma generator connected to the washing tub;

A carbon filter device disposed in communication with the washing tank and the plasma generator;

An air inlet / outlet valve installed in the carbon filter device;

A water supply pipe for supplying water to the washing tank; And

And a drain pipe having an opening / closing valve to drain water from the washing tank and connected to the washing tank.

The plasma generator,

A connection part connected to the lower part of the washing tank to inject ozone; injecting ozone generated by the plasma generator into a dehydration tank;

Gas ozone recovery port for ozone recovery, in communication with the upper part of the washing tank; ozone not dissolved in water is moved to the upper part of the washing tank to enter the plasma generator through the ozone recovery port, reinjecting ozone to circulate In this way, solubility zone ozone water is produced in the dehydration tank,

The carbon filter device,

A gas inlet communicating with the wash tub; and

A gas ozone circulation port connected to the plasma generator;

The remaining gas ozone at the top of the washing tank is introduced into the carbon filter device through the gas inlet and circulated through the washing water tank through the plasma generation device through the gas ozone circulation port to remove the remaining gas ozone from the carbon filter device.

The entire washing process of the washing machine is made by repeating one or more steps of a washing process, a rinsing process, a dehydration process, and a drying process one or more times.

During the washing process, the ozone gas is confined inside the washing tank by closing the door and closing the air access / opening valve installed in the carbon filter device, and setting the internal temperature of the plasma generator and the water temperature of the washing tank respectively. Washing is carried out by maintaining the ozone dissolved concentration of the washing water at a high concentration by controlling below the temperature of

While performing the water supply and drainage to the washing tank provides a plasma washing machine characterized in that to open and close the air entry and exit valve to maintain the inside of the washing tank at atmospheric pressure.

In the above, the connection portion for the ozone injection is connected to the lower part of the washing tank,

Plasma washing machine comprising at least one of a gas ozone injection pump, an ozone solution membrane or a venturi tube, and injects ozone into the washing tank by any one or more of bubble method, ozone solution membrane method, and injector method. to provide.

In the above, in order to prevent the leakage of ozone during drainage or water supply,

A plasma washing machine is provided, wherein the plasma generator operating time is limited to a predetermined time so that the ozone concentration of the water to be drained becomes a predetermined value or less.

In the above, in order to prevent the leakage of ozone during drainage or water supply, the plasma washing machine is provided with a first U-shaped tube provided at the end of the drain pipe.

In the above, in order to prevent the leakage of ozone during drainage or water supply, there is provided a plasma washing machine, wherein hot water is used in a rinsing step.

In the above, in order to maintain the internal temperature of the plasma generator and the water temperature of the washing tank in the plasma washing step,

Water-cooled heat dissipation by installing a sealed plasma generator in water,

Install a cooling plate in the plasma generator or washing tank which is enclosed in water,

Install a cooler in the water supply line to supply coolant,

Provided is a plasma washing machine characterized by supplying ice to a washing tank.

In the above, a plasma barrier panel of the dielectric barrier discharge method is installed inside the plasma generator, the plasma panel is installed in one or more multiple-sided panel of a predetermined size, the gas ozone flow rate inside the plasma generator By maintaining a predetermined value of the internal temperature is controlled to 40 ^° C or less to provide a plasma washing machine, characterized in that to maintain a high concentration ozone generation by preventing the oxygenation reverse reaction of ozone.

In the above, in the case of the washing machine of the pulsate type, a rotary disk having a plurality of holes in the lower part of the washing tank and the bottom of the dehydrating tank is provided, and in the case of the outgoing washing machine, a plurality of holes are provided in the bottom of the dehydrating tank. Thus, the gas ozone is injected and circulated to the lower portion of the dehydration tank to provide a plasma washing machine.

In the above, in the ozone recovery process through the gas ozone recovery port, in order to prevent bubbles or water from entering the gas ozone recovery port, a water absorption filter is provided in front of the gas ozone recovery port is provided with a plasma washing machine. do.

In the above, the washing machine is provided with a second U-pipe connected to the water level control sensor or the drain pipe in order to maintain the water level during the water injection through the water supply pipe and the gas ozone injection below a certain level, the second U-pipe from the drain pipe After rising to reach the washing water level to increase the washing water after falling, forming a U-shaped end portion reaches the water level filled with the washing water, plasma washing machine characterized in that to prevent the water flow back to the plasma generating device and the carbon filter device To provide.

In the above, the power of the plasma generating device is cut off before opening the door of the door, the residual ozone is circulated to the carbon filter device by the gas ozone injection pump or venturi tube, and then removed, and then the door of the door is opened. To provide a plasma washing machine.

In the above, the plasma generator discharges oxygen by injecting oxygen or injecting oxygen,

It supplies oxygen by connecting oxygen generator on top of plasma generator or washing tank for oxygen discharge,

The oxygen generator provides a plasma washer, characterized in that to remove the nitrogen in the atmosphere by a filtering method at a predetermined rate to supply a gas with an increased oxygen ratio, or an oxygen tank.

In the above, the ozone dissolution of the washing tank in the plasma washing process provides a plasma washing machine, characterized in that 0.1 mg / L to 10 mg / L.

In the above, the plasma washing machine further comprises a cold and hot water supply and a hot air fan,

As the washing process, the washing process, the rinsing process, the dehydration process, and the drying process may be repeatedly performed one or more times in separate processes,

In the rinsing process can be used hot water through the cold and hot water supply,

It provides a plasma washing machine characterized by using warm air in the dehydration process or drying process.

The plasma washing machine is used, but the detergent washing process with the detergent and the plasma washing process are carried out continuously, and the detergent washing process is performed without generating plasma, and then the plasma washing process by gas ozone circulating injection is performed. It provides a plasma washing method, characterized in that carried out.

In addition, the present invention,

As a plasma mini washing machine,

A door to seal the wash tub;

A washing tank in which water is supplied;

Rotating plate disposed in the lower portion of the washing tank,

A gas ozone injector installed below the rotary disk;

A plasma generator connected to the gas ozone injection body;

A water absorption filter installed adjacent to the plasma generator;

A carbon filter device disposed in communication with the washing tank and the plasma generator;

An air inlet / outlet valve installed in the carbon filter device;

A water supply unit supplying water to the washing tank; And

And a drain pipe having an opening / closing valve to drain water from the washing tank and connected to the washing tank.

The water supply unit is made of a door opening to manually supply the water supply without a water pipe, and after the water supply water supply so that a portion of the plasma device is submerged in water,

The plasma generator,

A connection part connected to the lower part of the washing tank to inject ozone; and injecting ozone generated by the plasma generator into the washing tank,

Gas ozone recovery port for ozone recovery, in communication with the upper part of the washing tank; ozone not dissolved in water is moved to the upper part of the washing tank to enter the plasma generator through the ozone recovery port, reinjecting ozone to circulate In this way, solubility zone ozone water is produced in the washing tank,

A water absorption filter is installed in front of the gas ozone recovery port to prevent water from entering the plasma generator during ozone recovery.

The carbon filter device,

A gas inlet communicating with the wash tub; and

A gas ozone circulation port connected to the plasma generator;

The remaining gas ozone at the top of the washing tank is introduced into the carbon filter device through the gas inlet and circulated through the washing water tank through the plasma generation device through the gas ozone circulation port to remove the remaining gas ozone from the carbon filter device.

The entire washing process of the mini-washing machine may be performed by repeating one or more steps of a washing process, a rinsing process, a dehydration process, and a drying process one or more times, but may include a washing process and a rinsing process.

During the washing process, the ozone gas is confined inside the washing tank by closing the door and closing the air access / opening valve installed in the carbon filter device, and setting the internal temperature of the plasma generator and the water temperature of the washing tank respectively. Washing is carried out by maintaining the ozone dissolved concentration of the washing water at a high concentration by controlling below the temperature of

While draining the wash tub, the air access opening and closing valve is opened to maintain the inside of the wash tub at atmospheric pressure.

Turn off the plasma generator, remove the gas ozone by the carbon filter box, and drain

Provided is a plasma mini-washing machine characterized by supplying cold water or hot water for the rinsing process and performing a rinsing process without the plasma generator operating.

In the above, during the plasma washing, in order to maintain the internal temperatures of the washing tank and the plasma generator at 20 ° C. or lower, cooling water is supplied, a cooling plate is installed in the washing tank, or ice is directly added to the washing tank manually. It provides a plasma mini washing machine.

In the above, in the case of washing the detergent in parallel, the detergent is added manually,

The present invention provides a plasma mini-washing machine, which is drained after the first washing with a detergent, and then re-watered and the plasma apparatus is operated to perform the plasma washing process one or more times.

The present invention has the effect of overcoming the limitations of the conventional industrial ozone washer in the United States and United Kingdom to provide a household plasma ozone washer. In the conventional industrial ozone washer technology, it overcomes the time and space constraints in the method of washing by injecting ozone water prepared in a separate space from the washing tank to wash the washing tank, washing technology by ozone water and gas ozone produced in the washing tank. present. In the method of directly injecting gas ozone into a washing tank of a conventional industrial ozone washing machine, a pressurized gas ozone injecting method of a conventional industrial ozone washing machine which manufactures high concentration ozone water at high pressure and controls the remaining ozone below a reference value for a long time is a non-pressurized gas. The domestic washing machine was realized by adopting a method of producing ozone water at a high concentration by switching to the ozone circulation method and treating the remaining gas ozone in a short time by a circulating removal method. This type of circulating gas ozone injection and removal of circulating residual gas ozone eliminates the need for a separate air preparation device or a highly concentrated oxygen device in a conventional industrial ozone washing machine, and enables an ozone washing machine to be possible even with a small ozone generator. The high pressure pump device of the present invention can be used as a small fan type pump, and the self-controlling of remaining gas ozone through a process without gas ozone injection for a long time is presented. It is finally possible to use a home ozone washing machine.

Table 2 summarizes the conventional industrial ozone washer and ozone washer of the present invention.

In addition, the present invention provides a plasma washing machine ensured reliability and safety. High-density ozone water is produced in a short time to realize a detergent-free washing machine. In the case of using a detergent, the amount of detergent is minimized, and the detergent is released with clear water. In addition, the organic material and various dyes and the like contained in the laundry is decomposed to realize an eco-friendly washing machine to discharge the clear water. The technique of the present invention can be applied to various types of washing machines, from mini laundry to medium and large sized and professional washing machines.

1 is a conceptual diagram of a conventional industrial ozone washing machine (Fig. 1 (a)-Fig. 1 (c)) and a conceptual diagram of a gas ozone circulating general washer (Fig. 1 (d)) of the present invention.
FIG. 2 shows the conventional water and wastewater treatment device technology (FIGS. 2 (a) and 2 (b)), the liquid product manufacturing equipment cleaning device (FIG. 2 (c)), and the ozone water device (FIG. 2 (d)). This is an example.
3 is an ozone generation experiment in a plasma generator having predetermined volumes (20 L, 10 L, 2 L). Fig. 3 (a) is a photograph of the surface-plasma panel, Fig. 3 (b) is a schematic diagram of an internal ozone concentration experiment, Fig. 3 (c) ozone generation concentration and Fig. 3 (d) are graphs of internal temperature change.
4 is a ozone water concentration experiment of a volume 20 L tank using a gas ozone circulating method using a volume generator of 2 L in volume: (a) Schematic diagram of a gas ozone circulating ozone water production experiment (2 L of plasma apparatus, water tank inner product) 20 L and amount of water 10 L), (b) Change of ozone water concentration and temperature in the test results, (c) Ice pack of the plasma generator and graph of the ozone water concentration in the tank with ice.
5 is an embodiment of the present invention: (a) a perspective view of a plasma washer, (b) a longitudinal sectional view, and (c) a cross sectional view.
6 is a conceptual diagram of a water supply and drainage device of the present invention.
Figure 7 is an illustration of the degree of circulation and ozone injection of the plasma gas ozone of the present invention.
8 is a schematic view of the residual gas ozone circulating removal of the present invention.
9 is a cross-sectional view of a separate device of the washing machine, the plasma apparatus and the oxygen generator of the present invention.
10 is a cross-sectional view of the drum type washing machine of the present invention.
11 is a view showing the washing effect by the organic mini-washing machine and organic decomposition of the present invention.
12 to 13 are table-1 showing a comprehensive list of washing machine technology applying conventional electrolysis and plasma discharge.
14 is a table illustrating a comparison between the conventional ozone washer and the domestic ozone washer according to the present invention.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

Table-1 is a comprehensive list of the conventional patent technology, Table-2 is a comparison table of the conventional industrial ozone washing machine and the general washing machine of the present invention, the characteristics of each technology is as described above.

First, the type of the washing machine and its basic configuration and its application method according to the present invention will be described below.

(1) The washing machine has a pelsate type (vertical washing tank) and a trough type (horizontal washing tank). In both methods, a dehydration tank having a plurality of dehydration holes is installed inside the washing tank.

(2) In the pulsate method, a turntable is installed at the lower part and washes the laundry in a cross rotational manner as the turn direction crosses the rotation direction about the vertical axis to the right and left at regular intervals. At this time, the dehydration tank may rotate together with the turntable, or may turn only the turntable. Of course, during dehydration, the dehydration tank and the turntable rotate at the same time.

(3) In the loop system, the dehydration tank rotates in two directions at regular intervals about the horizontal axis. At this time, a bar (three or four places) is installed on the wall inside the dehydrator tank so that the laundry can be washed from top to bottom when the rod is rotated by the spinneret.

(4) In the case of the plasma washing machine of the pulsate type, gas ozone is injected by installing a plurality of holes in a turntable installed under the washing tank. The gas ozone injection device is separately installed in the lower part of the turntable to adopt the gas ozone injection method through the turntable hole.

(5) In the case of the plasma type washing machine, it is difficult to inject gas ozone directly into the dehydration tank because the dehydration tank rotates horizontally. Therefore, a gas ozone injection device is installed at the bottom of the dehydration tank (lower washing tank) to inject gas ozone into the lower part of the washing tank to make ozone water, and part of the gas ozone is injected into the dehydration tank through the dehydration hole of the dehydration tank. .

(6) In the case of mini plasma washing machines, commercial mini washing machines mainly use washing and rinsing. Some have a dehydration function by manually installing a separate dehydration tank after washing rinse, but the actual dehydration function is weak. Mini plasma washing machines therefore focus on the application of plasma to washing and rinsing rather than dewatering.

1 is a conceptual diagram of a conventional industrial ozone washing machine and a gas ozone circulating general washing machine of the present invention, and FIG. 2 is a purified water and wastewater treatment device and an ozone water production device, and the features of each technology are as described above.

The present invention reflects the experimental results of FIGS. 3 to 4 and proposes a heat dissipation method for low temperature maintenance of the water tank and the plasma generator. In addition, the ozone generation amount of the plasma generating panel (12x12 cm <^2> , input power 50W) of this invention is 16 mg / min (subject to the low temperature holding | maintenance state of 20 degrees C or less). Dissolving 32 mg of gas ozone generated in 2 minutes in 10 L of water can produce 3.2 mg / L of ozone water. In the experiment of FIG. 4, the concentration of ozone water prepared for 10 minutes is 1.5 mg / L, it can be understood that about half of gas ozone is dissolved in water. Therefore, a washing machine having 50 L of water requires 5 plasma panels and 250 W of input power for producing 1.5 mg / L ozone water within 10 minutes, whereby a medium-sized domestic plasma washing machine can be realized.

The features of the present invention are as follows: (1) Gas ozone circulating injection refers to the technique of the inventors patent document [11]. (2) Cyclic removal of residual gas ozone is applied mutatis mutandis to the present inventors patent document [12], but proposes a new circulation removal method. (3) The plasma generating apparatus is applied mutatis mutandis to the inventor's patent document- [13]. In addition, (4) a technique for maintaining the inside of the water tank and the plasma generator reflecting the experimental results of FIGS. 2 and 3 at 20 ° C. or less is proposed. And (5) suggest the safety of ozone leakage prevention in the drainage process.

In the washing process of the plasma washing machine of the present invention, any one or more processes of a washing process, a rinsing process, a dehydration process, and a drying process are performed at least once.

In the washing process-free plasma washing process, the gas ozone of the plasma generator is cyclically injected into the water tank for a predetermined time. After a certain period of time, the plasma washing process is performed by circulating the remaining gas ozone with the power of the plasma generator turned off. For example, high concentration ozone water is reached in the water tank by gas ozone circulation for 5 minutes of operating time of the plasma generator, and thereafter, the power of the plasma generator is turned off, and only high concentration ozone water is maintained by circulating only undissolved gas ozone. Plasma washing process is performed. Therefore, the time for maintaining the temperature of the washing tank and the plasma generator at a low temperature is limited to the plasma washing process time, depending on the amount of laundry is about 10-20 minutes.

In the case of a detergent washing process, it is divided into a detergent washing process and a plasma washing process. The detergent washing process is first performed by adding a predetermined detergent. At this time, the amount of detergent is put less than the amount of conventional washing machine. After washing the detergent, plasma washing process is performed after drainage and urine water. Alternatively, the plasma washing process may be performed immediately after the detergent washing process is completed without draining. In this case, the detergent contained in the water by washing the detergent is also purified and drained.

After this, the rinsing process is repeated one or more times. In the rinsing step, hot water may be used to quickly remove residual ozone adsorbed to the laundry. After that, the dehydration process and the drying process by hot air are carried out. After completion of the final drainage, including when dehydration and drying are carried out separately, residual gas ozone remaining in the tank is removed in a circulating manner. After the residual ozone in the washing tank is removed to 0.05 ppm or less, the door is opened to take out the laundry.

In addition, ozone dissolution of the wash water is drained to a low concentration of 1 mg / L or less.

If the entire washing process including the rinsing and dehydrating process of the present invention is one hour, the plasma washing process takes about 20 minutes. At this time, the ozone generation time in the plasma generating apparatus can be within 5 minutes, and the remaining 15 minutes circulate the remaining gas ozone to wash. At this time, since dissolved ozone in the water is almost converted to oxygen for 15 minutes, the ozone dissolved degree of the water in the drainage process is drained to a very low state. In addition, the power is turned off before the internal temperature of the generator rises rapidly due to plasma generation for a short time, thereby enabling efficient washing. If the detergent is not used, the number and time of the rinsing process for removing the detergent adsorbed on the laundry is shortened, so the washing time is short and the consumption of water is reduced.

An embodiment of a specific plasma washing machine of the present invention will be described below with reference to the results and analysis of the above experiment.

5 is a view of the plasma washing machine 100 of the washing and dewatering function of the pulsator method of the present invention.

The basic configuration of the plasma washing machine of the present invention is the door 101, the washing tank 102 and the dehydration tank 103 in the tank, the rotary disk 170 and the gas ozone injection device 160, the dehydration in the lower dehydration tank The plasma generator 110, the gas ozone injection pump 140, and the carbon filter device 130 and the water absorption filter 120 in a separate space next to the tank. The dehydration tank 103 is provided with a plurality of dehydration ports.

5 (a) is a perspective view of the plasma washing machine of the present invention.

The door 101 is provided at the top of the sealed structure, and the carbon filter device 130, the water absorption filter 120 device, and the plasma generator 110 are installed on one side of the washing machine.

FIG. 5B is a longitudinal cross-sectional view of the AA′-line of FIG. 5A.

In FIG. 5 (b), the present invention provides a low temperature maintenance method of the washing tank 102 and the plasma generator 110. (1) The plasma generator of the closed structure is connected to the washing tank and installed in water to cool the water. It is a maintenance method. (2) In addition to this, cold water is supplied to the washing tank, (3) ice injection into the tank, and (4) cooling plate 108 is installed. One or more of these may be employed during the plasma washing process to maintain the internal temperature of the bath and generator at 20 ° C or less.

Fig. 5 (c) is a cross-sectional view of the BB'-line of Fig. 5 (a), wherein (ci) is the carbon filter device 130, (c-ii) is the water absorption filter 120 device, and (c-iii). ) Is a sectional view including the plasma generator 110.

5 (c-i) is a cross-sectional view showing the carbon filter device 130.

The carbon filter device includes a gas inlet part communicating with the washing tank and a gas ozone circulation port 131 communicating with the plasma generating device. The gas inlet may be made of a mesh, a porous material, a cloth, or the like. The gas ozone circulation port 131 may be tubular and may have a valve.

By operating the gas ozone injection pump 140, the remaining gas ozone at the top of the washing tank is injected into the carbon filter device, and the gas ozone injection device 160 is passed through the plasma generator 110 through the gas ozone circulation port 131. The remaining gas ozone is removed from the carbon filter device 130 in the process of circulating the washing tank 102. The gas ozone injection pump 140 used for the circulatory injection of gas ozone is characterized in that the residual gas ozone is cyclically removed. The door 101 is opened after the remaining gas ozone is removed.

5 (c-ii) is water or foam contained in the gas ozone of the washing tank is removed by the water absorption filter 120 is recovered to the plasma generating apparatus 110 through the gas ozone recovery port 111.

5 (c-iii) is a cross-sectional view of the plasma generator including the ozone generating panel 112 and the washing tank.

The ozone generating panel 112 installed inside the plasma generating device 110 that is sealed and installed in the water may have various forms, and install one or more panels.

The plasma generator 110 may be installed according to the shape of the wall of the washing tank, and may be separated into a plurality and installed in multiple. In the case of multiple installation, the ozone injection method by a single gas ozone injection pump 140 or the ozone injection method by a plurality of individual gas ozone injection pumps 140 may be connected in parallel.

Features of the washing process of the present invention will be described after FIG.

6 is a detailed cross-sectional view of the water supply and drainage device of the present invention.

The water supply and drainage device includes a cold / hot water device 180, a water supply pipe 104, a second U-shaped pipe as the wash water level maintenance pipe 190, a drain pipe 103, and an air access opening / closing valve 132.

The air access opening and closing valve 132 may be installed at the carbon filter device 130 or at other positions.

In order to keep the water of the washing tank and the inside of the plasma generator at a low temperature in the plasma washing process, cold water is supplied through the cold / hot water device. The rinsing process can supply hot water. The water supply supplies water up to the water supply level 106 of the washing tank. In the washing process, the water level 106 is raised to the washing water level 107 by the gas ozone injection and the rotation of the rotary disk 170. One end of the wash water level maintenance tube 190 is lower than the water level, the highest height is located at the wash level 107, the other end is connected to the drain pipe (103). When the water is more than the height of the wash water level maintenance pipe 190, the water is naturally drained through the drain pipe 103 to prevent the back flow of water to the carbon filter device 130 and the gas ozone recovery port (111). One end of the wash water level maintenance pipe is installed in the form of a 'U-tube' (the first U-tube), so that some water remains in the U-tube when the wash tank is completely drained. Ozone leakage is prevented. The drainage pipe 103 is also installed in the ozone outflow prevention tube 191 in the 'U-shaped' type to prevent the outflow of gas ozone. That is, since some water remains in the U-tube when the water is drained, leakage of residual gas ozone inside the washing tank is prevented.

Since the internal pressure increases when water is supplied to the closed washing tank space, the air is naturally discharged through the air discharge by opening the air access / opening valve 132 and water is supplied. At this time, the gas ozone contained in the discharged air is removed in the process of passing through the carbon filter device (130).

Since the internal pressure decreases during drainage, air is introduced and drained by opening the air access / closing valve 132. When water is supplied and exhausted, the air access valve is closed.

7 is a cross-sectional view illustrating a circulation diagram and an ozone injection method of the gas ozone of the present invention. The gas ozone is directly injected into the gas ozone injector 160 by the action of a pressurized pump (pressure injecting gas ozone into the water of the wash tub), which is a gas ozone infusion pump 140, directly below the washing tank. do. Operation of the pressure pump injects gas ozone into the water. When the gas ozone injection valve touches the gas ozone recovery port for a short time, the pressure of the washing tank is slightly higher than the pressure inside the plasma generator, but the quasi-atmospheric pressure is maintained. Of course, when the valve of the gas ozone recovery port is opened, the gas ozone is circulated while the pressures in the washing tank and the plasma generator are maintained at atmospheric pressure.

Gas ozone injection device 160 is injected through the micro-bubble generator 161 or ozone dissolving membrane 162, or by using one or more of them in parallel to produce a high concentration of ozone water in the wash tank. By installing the microbubble device 161 or the ozone dissolving membrane 162 inside the gas ozone injector 160, the gas ozone increases the contact time with water to produce high concentration of dissolved water. The ozone dissolving membrane is a method in which a plurality of cloths are connected in a vertical direction, and gas ozone between the cloths increases solubility by increasing the contact time of ozone and water through the cloth. In fact, when there is laundry in the washing tank, the contact time between the laundry and the gas ozone is increased, and the solubility of the gas ozone is increased through the laundry in the water. This phenomenon is used to install ozone membranes.

The rotary disk 170 receives water through a plurality of holes (bubble outlets 171) to the gas ozone injection device 160, and gas ozone is injected into the water of the washing tank to prepare ozone water.

Gas ozone injection pump 140, the pressure of the gas ozone circulating injection method is as follows. In the state where the non-return valve installed at the front end of the injection pump 140 is opened, the gas ozone of the plasma generator is injected into the gas ozone injection box 160 by the action of the pressure pump. Injected gas ozone is gas is injected into the water tank through the rotary disk 170 provided with a plurality of holes (bubble discharge port, 171). At this time, the water supply level 106 rises to the washing water level 107 by the injection of gas ozone and the rotation of the rotary disk. The gas ozone that is not dissolved in the water of the tank is collected at the upper part of the washing tank, and the recovery valve at the upper portion of the plasma generator is opened to recover the gas ozone to the plasma generator through the gas ozone recovery port 111. The recovered gas ozone is re-injected into the lower part of the tank by the high concentration gas ozone from the plasma generator, which is re-injected by the action of the gas ozone injection pump. Has

By the action of the pressure pump to close the recovery valve of the upper portion of the plasma generator for a certain period of time injected into the lower portion of the gas ozone tank can increase the solubility of the gas ozone in the high pressure of the washing tank. That is, it is possible to produce high concentration ozone water by adjusting the pressure of the water tank (range of quasi-atmospheric pressure) by the ON / OFF action of the recovery valve.

As another method of ozone injection, an injector method using a Venturi tube may be used. The injector method is not shown separately. Venturi injector tube is pressurized water is injected into the injection tube through the absorption tube and the ozone water dissolved by absorbing the gas ozone of the plasma generator by the pressure difference between the absorption tube and the injection tube according to the flow of water is injected into the bottom of the tank That's how it works.

8 is a cross-sectional view showing the circulating residual gas ozone removal of the present invention.

The common use of the gas ozone injection pump 140 is different from the conventional patent document- [13]. Gas ozone remaining in the upper part of the washing tank is circulated from the plasma generating device 110 to the gas ozone injecting device 160 and the washing water tank 102 through the carbon filter device 130 to remove residual gas ozone from the carbon filter device 130. do. Since the concentration of residual gas ozone in the tank is in a low concentration state by the drainage and rewatering in the rinsing process, the removal time can be adjusted within 1-2 minutes. The inside of the box is filled with carbonaceous material. The size of the carbon filter device is determined in consideration of the ozone removal rate of the carbon filter device, and an appropriate volume of carbon filter device is installed to completely remove the existing gas ozone in a short time of 1 to 2 minutes.

9 is a conceptual diagram of a plasma washing machine 200 separately installed in a large washing machine for a professional office of the present invention, such as an oxygen generator and a washing tank.

The large washing machine may be installed by separating one or more of the washing tank, the cold / hot water device 180, the carbon filter device 130, the plasma generator 110, and the oxygen generator 210 from the washing tank.

That is, oxygen may be supplied by connecting an oxygen generator to an upper portion of the plasma generator or the washing tank for oxygen discharge. The injection of oxygen is injected by the pressure of the oxygen generator 120, at this time by opening and closing the air access opening and closing valve 132 to maintain the pressure of the washing tank at the atmospheric pressure.

The oxygen generator 210 may use a filter type oxygen generator or an oxygen tank having a high content of oxygen by removing nitrogen. Cold water is supplied to the washing tank through the cold and hot water in the plasma washing process. Plasma generators also maintain a low temperature by installing a separate heat dissipation device. Before the plasma washing process, oxygen is supplied to the inside of the plasma generator and the washing machine.

10 is a schematic view of a drum type washing machine 300 of the present invention.

The drum type washing machine includes a plasma generator 110, a gas ozone injection device 160, a carbon filter device 130, and the like, which are components of the plasma washing machine of the present invention. Plasma generator and gas ozone injection device are installed in the water in the separate space under the drum washing tank. Gas ozone is injected through the dehydration port of the rotating drum to produce ozone water.

Plasma washing machines are classified according to the volume of the washing tank and the weight of the laundry, and can be applied to mini-washing machines, medium and large households for general households, and large-sized washing machines for professional laundry. It is applied to manual, semi-automatic and fully automatic washing machines in some and the whole process, and large plasma washing machine for professional washing is installed by separating plasma generator and oxygen generator from washing tank and commercialized ozone. The generator can be used. In addition, it is applied to a bubble washing machine equipped with a vertical stirring type, oblique shaft drum type, or an air bubble generating device.

The plasma ozone washing machine according to the present invention is also applicable to a mini washing machine having a washing and rinsing function. The mini washing machine is composed of a plasma generator, a carbon filter, and a water absorption filter device installed in the water connected to the water supply and drainage and the washing tank. Water is supplied by water pipes or manually by hand to the wash basin so that part of the plasma apparatus is submerged. In performing the plasma washing process, in order to maintain the internal temperature of the washing tank and the plasma generator at 20 ° C. or lower, (1) supply cooling water, (2) install a cooling plate, or (3) manually wash the ice tank manually. You can put it in In the case of washing with detergent, detergent can be added manually.

After the washing step, the rinsing step is performed one or more times. The rinsing process may use hot water. In the washing process, the plasma apparatus is operated to inject gas ozone, and the rinsing process does not operate the plasma apparatus. In the case of using the detergent, after the first washing with the detergent, the water is drained, then rewatered, and the plasma apparatus is operated to perform the plasma washing step at least once.

When applied to a general automatic washing machine having a washing-rinsing-dehydration-drying function of the present invention, the washing process and the rinsing process may be performed one or more times. When using a detergent, a detergent washing process is performed first and then a plasma washing process is performed.

In the detergent input method, a detergent packaged in a predetermined amount of disposable units may be input.

In order to sterilize and wash the utensils other than the washing of the fiber, a separate tray may be mounted, and a baby bottle, household kitchen utensils (cutlery and cup, etc.) and medical instruments may be loaded and sterilized and washed.

11 is a photograph of the experimental mini-washing machine of the present invention and a photograph of the laundry effect of the decomposition of organic matter.

Figure 11 (a) is a gas washing machine experimental washing machine equipped with an S-DBD type plasma panel in which gas ozone is generated in a commercially-available mini washing machine (dehydration tank is used separately). 11A is a front photograph. Figure 11 (a-ii) is a back photograph. Two 40 W plasma side-panels were mounted inside the rectangular box on the back of the mini washer and the box was attached to the back of the washer. A cylindrical carbon filter tube and a water absorption filter were mounted on the rear of the washing machine. 10 (a-iii) is a photograph of the bottom of the mini washing machine. A turntable with a plurality of holes is provided. The inner product of the mini washing machine is 25 liters.

The operating sequence of the washing machine is as follows: Pour an appropriate amount of cold water (about 10 liters) manually, add the laundry and close the lid on the top. Using a small fan motor, the gas ozone generated in the plasma generator is injected into the washing tank through the lower part of the rotary disk to dissolve, and the gas ozone at the upper part of the washing tank is recovered to the plasma generator box again, between the washing tank and the plasma generator. Gas ozone circulates. After about 5 minutes of operation of the plasma generator, the ozone water concentration in the washing bath reaches about 1 mg / L (1 ppm), which is sufficient for effective ozone washing. This ozone water concentration is higher than the US industrial ozone water concentration (less than about 0.5-0.7 mg / L). After 5 minutes of operation of the plasma generator, the plasma generator is stopped and additional washing is performed by circulating the remaining gas ozone using only the fan motor. After 20 minutes of washing solution, the concentration of ozone water is reduced to 0.1 mg / L after the plasma generation power is turned off. After washing, fan motor is operated and residual ozone gas is circulated and removed through carbon filter box, plasma generating box and washing tank. The residual gas ozone concentration in the wash tub is 0.05 ppm or less within 2 minutes, opening the door.

11 (b) to 11 (d) show the results of washing experiments of a mini washing machine. The amount of washing water is 10 liters.

FIG. 11B is a result of washing a towel moistened with blue ink for 15 minutes. The operation time of the plasma panel was 5 minutes, after which the plasma operation was stopped and the gas ozone was circulated for 10 minutes to wash. The initial blue ink water was broken down into clear wash water. The decomposing effect of the blue dye made the turbid liquid, and the wash water became clear water.

FIG. 11 (c) shows the result of ozone treatment of automobile waste oil for 15 minutes, and the final wash water was decomposed into water of slightly yellow color.

Fig. 11 (d) was ozone washed by adding pig blood. A significant amount of foam was initially generated, and after about 10 minutes of treatment, foaming also decreased and turned to clear water.

In addition to the above experiments, even when a small amount of detergent is added to the ozone treatment, a large amount of foam is generated. After 10 minutes of treatment, the amount of foam decreases, and the wash water also changes clearly. As such, the washing effect of ozone decomposing organic matter was confirmed, and the sterilization effect of microorganisms was already found through several experiments and thus was not added to this experiment.

On the other hand, the specific numerical values presented in the above embodiments and experimental examples are illustrative and can be modified as necessary, and those skilled in the art to which the present invention pertains can change the present invention without changing the technical spirit or essential features thereof. It will be appreciated that it may be implemented in a form. Therefore, the embodiments described above are to be understood as illustrative and not restrictive in all aspects. The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

100: pulsator type plasma washing machine, 200: separate plasma washing machine, 300: drum type plasma washing machine,
101: door, 102: washing tank, 103: dehydration tank, 104: water pipe, 105: drain pipe, 106: water level, 107: washing water level, 108: cooling plate,
110: plasma generator, 111: gas ozone recovery port, 112: ozone generating panel,
120: water absorption filter, 130: carbon filter device, 131: gas ozone circulation port, 132: air inlet / opening valve, 140: gas ozone injection pump, 150: rotary motor, 160: gas ozone injection device, 161: microbubble generator 162: ozone soluble membrane, 170: turntable, 171: bubble outlet,
180: cold and hot water device, 190: washing water level maintenance pipe, 191: ozone outflow prevention pipe,
210: oxygen generator, 310: rotary drum bath.

Claims (19)

As plasma washing machine,
A door to seal the wash tub;
A washing tank in which water is supplied;
A dewatering tank rotatably disposed in the wash tub to hold laundry and having a plurality of dehydrators;
A plasma generator connected to the washing tub;
A carbon filter device disposed in communication with the washing tank and the plasma generator;
An air inlet / outlet valve installed in the carbon filter device;
A water supply pipe for supplying water to the washing tank; And
And a drain pipe having an opening / closing valve to drain water from the washing tank and connected to the washing tank.
The plasma generator,
A connection part connected to the lower part of the washing tank to inject ozone; and injecting ozone generated by the plasma generator into the washing tank,
Gas ozone recovery port for ozone recovery, communicating with the upper part of the washing tank; ozone that is not dissolved in the water is moved to the upper part of the washing tank to enter the plasma generator through the ozone recovery port, reinjecting ozone to circulate In this way, high dissolved ozone water is produced in the washing tank,
The carbon filter device,
A gas inlet communicating with the wash tub; and
A gas ozone circulation port connected to the plasma generator;
The remaining gas ozone at the top of the washing tank is introduced into the carbon filter device through the gas inlet, and the gas is circulated through the plasma generating device through the gas ozone circulation port to remove the remaining gas ozone from the carbon filter device.
The entire washing process of the washing machine is made by repeating one or more steps of a washing process, a rinsing process, a dehydration process, and a drying process one or more times.
During the washing process, the ozone gas is confined inside the washing tank by closing the door and closing the air access / opening valve installed in the carbon filter device, and setting the internal temperature of the plasma generator and the water temperature of the washing tank, respectively. Washing is carried out by maintaining the ozone dissolved concentration of the washing water at a high concentration by controlling below the temperature of
During the water supply and drainage to the wash tub plasma washing machine characterized in that for opening the air access opening and closing valve to maintain the inside of the wash tank at atmospheric pressure. According to claim 1, Connection portion for connecting the lower portion of the washing tank ozone injection,
A plasma washing machine comprising any one or more of a gas ozone injection pump, an ozone solution membrane, or a venturi tube, and injecting ozone into the washing water tank by any one or more of a bubble method, an ozone solution membrane method, and an injector method. The method of claim 1, wherein in order to prevent the leakage of ozone during drainage or water supply,
Plasma washing machine, characterized in that the operating time of the plasma generator is limited to a predetermined time so that the ozone concentration of the water to be drained is a predetermined value or less. The plasma washing machine according to claim 1, wherein a first U-shaped tube is provided at an end of the drain pipe in order to prevent leakage of ozone during drainage or water supply. The plasma washing machine according to claim 1, wherein hot water is used in a rinsing step in order to prevent leakage of ozone during drainage or water supply. According to claim 1, In order to maintain the internal temperature of the plasma generator and the water temperature of the washing bath in the plasma washing process,
Water-cooled heat dissipation by installing a sealed plasma generator in water,
Install a cooling plate in the plasma generator or washing tank which is enclosed in water,
Install a cooler in the water supply line to supply coolant,
Plasma washing machine, characterized in that to supply ice to the washing tank. The plasma generating apparatus of claim 1, wherein a dielectric barrier discharge plasma panel is installed in the plasma generating apparatus, and the plasma panel is installed in one or more multiple planes of a predetermined size. Plasma washing machine, characterized in that the ozone flow rate is maintained at a predetermined value to control the internal temperature below 40 ^o C to prevent the reverse reaction of ozone oxygenation to maintain high concentration ozone generation. According to claim 1, wherein when a washing machine of the pulsate type, gas ozone is cyclically injected through a rotary disk having a plurality of holes in the lower part of the washing tank and the bottom of the dehydration tank, and configured as a tumble washing machine, Gas ozone is injected into the washing tank to produce ozone water, and the gas ozone is injected into the dehydration tank and circulated through a plurality of dehydration ports formed in the dehydration tank. The plasma washing machine according to claim 1, wherein a water absorption filter is installed in front of the gas ozone recovery port to prevent bubbles or water from entering the gas ozone recovery port during the ozone recovery process through the gas ozone recovery port. . According to claim 1, The washing machine is provided with a second U-tube as a washing water level maintenance pipe connected to the water level control sensor or the drain pipe in order to maintain the water level during the water injection through the water supply pipe and the gas ozone injection below a certain level, The second U-tube rises from the drain pipe to reach the washing water level where the washing water rises, and then forms a U-shape after descending to reach the water supply level where the washing water is filled, thereby preventing water from flowing back to the plasma generating device and the carbon filter device. Plasma washing machine characterized in that. The method of claim 2, wherein the power of the plasma generator is cut off before opening the door of the door, and the remaining ozone is circulated to the carbon filter device by the gas ozone injection pump or the venturi tube, and then the door of the door is opened. The plasma washing machine characterized by the above. The plasma generating apparatus of claim 1, wherein the plasma generator discharges the atmosphere or injects oxygen to discharge the oxygen.
It supplies oxygen by connecting oxygen generator on top of plasma generator or washing tank for oxygen discharge,
The oxygen generator is a plasma washing machine, characterized in that to remove the nitrogen components in the atmosphere by a filtering method to increase the oxygen ratio by supplying a gas, or an oxygen tank. The plasma washing machine according to claim 1, wherein a maximum value of ozone solubility of the washing tank in the plasma washing process is 0.1 mg / L to 10 mg / L. According to claim 1, The plasma washing machine further comprises a cold and hot water supply and a hot air fan,
As a washing process, the washing process, rinsing process, dehydration process, and drying process may be repeatedly performed one or more times in separate processes,
In the rinsing process can be used hot water through the cold and hot water supply,
Plasma washing machine, characterized in that using the warm air in the dehydration step or drying step. The plasma washing machine according to any one of claims 1 to 14 is used, and the detergent washing process containing the detergent and the plasma washing process are carried out continuously, and the detergent washing process is performed without generating plasma, and then the gas ozone. Plasma washing method characterized by performing a plasma washing process by a cyclic injection. As a plasma mini washing machine of the pulsate type,
A door to seal the wash tub;
A washing tank in which water is supplied;
A rotating plate disposed under the washing tank and having a plurality of holes for circulating gas ozone;
A plasma generator connected to the washing tub;
A water absorption filter installed adjacent to the plasma generator;
A carbon filter device disposed in communication with the washing tank and the plasma generator;
An air inlet / outlet valve installed in the carbon filter device;
A water supply unit supplying water to the washing tank; And
And a drain pipe having an opening / closing valve to drain water from the washing tank and connected to the washing tank.
The water supply unit is made of a door opening to manually supply the water supply without a water pipe, and after the water supply to supply a portion of the plasma device to be submerged in water,
The plasma generator,
A connection part connected to the lower part of the washing tank to inject ozone; and injecting ozone generated by the plasma generator into the washing tank,
Gas ozone recovery port for ozone recovery, communicating with the upper part of the washing tank; ozone that is not dissolved in the water is moved to the upper part of the washing tank to enter the plasma generator through the ozone recovery port, reinjecting ozone to circulate In this way, solubility zone ozone water is produced in the washing tank,
A water absorption filter is installed in front of the gas ozone recovery port to prevent water from entering the plasma generator during ozone recovery.
The carbon filter device,
A gas inlet communicating with the wash tub; and
A gas ozone circulation port connected to the plasma generator;
The remaining gas ozone at the top of the washing tank is introduced into the carbon filter device through the gas inlet and circulated through the washing water tank through the plasma generation device through the gas ozone circulation port to remove the remaining gas ozone from the carbon filter device.
During the washing process in the mini-washing machine, the ozone gas is confined inside the washing tank by closing the door and closing the air access / opening valve installed in the carbon filter device, and the internal temperature of the plasma generator and the water in the washing tank. Washing is carried out by controlling the temperature to a predetermined temperature or less to maintain the ozone dissolved concentration of the wash water at high concentration,
While draining the washing tank, the air access opening and closing valve is opened to maintain the inside of the washing tank at atmospheric pressure.
Turn off the plasma generator, remove the gas ozone by the carbon filter box, and drain
Cold water or hot water is supplied for the rinsing process, and the rinsing process is performed without the operation of the plasma generator.
Washing process and rinsing process plasma mini-washing machine, characterized in that can be repeated one or more times each. 17. The method of claim 16, wherein the cooling water is supplied to maintain the internal temperatures of the washing tank and the plasma generator at 20 ° C or lower during plasma washing, or a cooling plate is installed in the washing tank, or ice is directly added to the washing tank manually. Plasma mini washing machine characterized in that. 18. The method of claim 17, wherein the detergent is added to the detergent manually in the case of washing the detergent in parallel,
A plasma mini-washing machine, characterized in that it is drained after the first washing with detergent, and then re-watered and the plasma apparatus is operated to perform the plasma washing step at least once. 17. The method of claim 16, further comprising a dewatering tank rotatably disposed in the wash tub and having a plurality of dehydration ports.
The whole washing process is a plasma mini-washing machine, characterized in that any one or more processes of a washing process, a rinsing process, a dehydration process, and a drying process may be repeated one or more times.

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