KR20160036273A - Circulation type apparatus for purifying air pollutant - Google Patents

Abstract

A circulation type air treatment apparatus is for removing odor-causing materials in air exhausted through a plurality of exhaustion fans installed at a livestock shed. The circulation type air treatment apparatus comprises: exhaustion ducts mounted on each exhaustion fan outside the livestock shed, and providing a wet washing space at the front of the exhaustion fans; a wet spray nozzle disposed above the wet washing space to treat the air, which flows into the wet washing space, with a liquid; a plasma treatment unit disposed above the wet spray nozzle to treat the air, which is treated in the wet washing space, with plasma; a washing water tank for collecting the liquid, which is sprayed from the wet spray nozzle through an exhaustion pipe connected to the exhaustion ducts, below the wet washing space; and a liquid treatment unit for treating the liquid, which is accommodated in the washing water tank.

Description

[0001] CIRCULATION TYPE APPARATUS FOR PURIFYING AIR POLLUTANT [0002]

The present invention relates to a circulating-type atmospheric treatment apparatus capable of removing odor-causing substances in a housing for growing livestock such as cattle or pigs.

Ammonia, hydrogen sulfide, mercaptans, amines, etc., which are the main cause of stench odor, can cause discomfort and disgust at low concentration and can cause great damage to the surrounding business.

Conventional methods for removing odors include oxidation, adsorption, biological decomposition, and plasma decomposition. The chemical oxidation method, which is one of the conventional methods for treating odors, is a method of oxidizing and decomposing odorous substances by using chemical oxidizing agents (chlorine dioxide, sodium hypochlorite, and chlorite dioxide), and various odors can be effectively removed, There is a problem that chemicals can affect human health and oxidizing agent itself causes environmental pollution.

In addition, ammonia gas and butane gas in the housing are removed by using activated carbon as another one of the conventional odor treatment methods in Korean Registered Utility Model No. 20-2005-0033847 (application number). The adsorption method is a method of adsorbing odorous substances by using an adsorbent having a large specific surface area such as activated carbon. However, in the adsorption method, since the odor-causing substance is semi-permanently adsorbed to the adsorbent, it is inconvenient to periodically replace the adsorbent, thereby increasing maintenance and repair costs.

As described above, most of the conventional malodor processing methods have various problems such as adverse effects on human health and increase in maintenance cost.

In addition, according to the conventional malodor processing method, there is a problem that the removal efficiency of the malodor is low, and it is difficult to operate and manage the facility even if the malodor is installed. Especially, the odor of livestock is not suitable for treatment because the concentration of the substance causing odor is high.

The present invention provides a circulating type atmospheric treatment apparatus capable of preventing collective sucking of domestic animals in a housing due to inadequate ventilation of the housing.

The present invention provides a circulating type atmospheric treatment apparatus capable of independently treating odor-causing substances discharged from each exhaust fan.

The present invention provides a circulating-type atmospheric treatment apparatus capable of reducing the maintenance cost required for treating odor-causing substances.

According to a preferred embodiment of the present invention to achieve the objects of the present invention, a circulating-type atmospheric treatment apparatus for removing odor-causing substances from air exhausted through a plurality of exhaust fans installed in a housing, An exhaust duct mounted on the exhaust fan of the exhaust fan and providing a wet cleaning space in front of the exhaust fan and extending above the wet cleaning space and having an outlet at an end thereof; A wet atomizing nozzle disposed above the wet cleaning space to treat the air entering the wet cleaning space as a liquid; A plasma processing unit disposed above the wet atomizing nozzle and treating the air treated in the wet cleaning space with plasma; A washing water storage tank for collecting liquid sprayed from the wet spray nozzle through a discharge pipe connected to the exhaust duct in the lower part of the wet washing space; And a liquid treatment section for treating the liquid contained in the wash water reservoir.

In a typical conventional housing, a malodor reduction device is installed on the outside and the gas is integrated and transported through an exhaust duct connected to the housing. However, if the exhaust ducts are connected together, the generation of static pressure due to the gas transfer may result in a poor ventilation of the housing, and may cause a group of suffocating animals. Therefore, when each exhaust fan is integrally connected, a separate exhaust fan must be provided in the middle of the exhaust duct, and an exhaust fan should be installed before and after the odor elimination device in which odors are collected. In addition, since the corrosive component of the livestock odor is exposed in the exhaust duct as it is transmitted to the malodor abatement device, the increase in cost due to the use of the corrosion-resistant exhaust duct is significant.

However, in the present invention, since the exhaust duct is independently provided for each exhaust fan, and the wet spray nozzle and the plasma treatment section are disposed inside the exhaust duct, the odor can be immediately treated, so that the corrosion problem of the exhaust duct can also be reduced. Further, since the exhaust ducts are individually arranged in the respective exhaust fans, no static pressure is generated in the exhaust ducts.

If the foreign matter is treated with a filter, continuous replacement is necessary. Especially, the livestock odor having a large amount of oil component has a limitation in treatment, and the maintenance cost due to frequent exchange has a great burden. However, in the circulating-type atmospheric treatment apparatus according to the present invention, a treatment effect is high by removing the substances causing odor in multiple angles through the wet atomizing nozzle and the plasma, and the liquid is sprayed from the wet atomizing nozzle or electricity is supplied to the plasma processing apparatus Odor treatment is instantaneously possible and maintenance costs are reduced because replacement of wet spray nozzles or plasma treatment devices is not required except for malfunctions.

In the washing water reservoir, the liquid sprayed from the wet spray nozzle can be recovered and reused. The liquid sprayed from the wet spray nozzle is temporarily stored in the wash water reservoir and can be used after being transferred to the liquid treatment unit and cleaned. The liquid processed in the liquid processing section may be immediately re-supplied to the wet atomizing nozzle, but in some cases, the liquid processed in the liquid processing section may be repeatedly processed in the liquid processing section while circulating in the wash water reservoir, The liquid may be re-supplied to the wet atomizing nozzle in the wash water reservoir.

Further, although the liquid in the wash water reservoir is treated in the liquid treatment section, it can be replaced periodically and, in some cases, a separate drug treatment can be performed.

Further, a gas-liquid separation filter can be disposed between the wet atomizing nozzle and the plasma processing section. The air exhausted from the wet cleaning space through the plasma processing unit to the exhaust port of the exhaust duct can only contain a large amount of liquid through the wet cleaning space due to the blowing of the exhaust fan.

The liquid filtered by the gas-liquid separation filter drops down to the wet cleaning space at the bottom together with the liquid sprayed from the wet spray nozzle, and the liquid which is accumulated at the bottom of the exhaust duct moves to the wash water reservoir through the discharge pipe. Therefore, it is not necessary to reuse the liquid in the wash water reservoir to supply additional liquid. Also, the gas-liquid separation filter serves to prevent a large amount of liquid from flowing into the plasma processing unit connected to the power source, and a demister filter that can effectively remove the liquid can be used as the gas-liquid separation filter.

Further, a high-pressure spray nozzle for spraying high-pressure air or liquid can be disposed above the gas-liquid separation filter, and the foreign substance filtered by the gas-liquid separation filter can be blown off by using the high-pressure spray nozzle.

The plasma processing unit may have a basic configuration including a ground electrode extending between the ground electrode and the ground electrode extending along the flow direction of the air flowing into the exhaust duct, and the odor-causing substance may be disposed at the edge of the ground electrode and the discharge electrode And can be removed by the generated plasma discharge. However, the plasma processing unit may employ various well-known equipment for generating plasma, for example, a plasma processing method disclosed in Application No. 10-2013-0037584.

In addition, a high-pressure cleaning nozzle for spraying high-pressure air or liquid can be disposed on the upper portion of the plasma processing unit, and the dust collected on the ground electrode and the discharge electrode of the plasma processing unit can be removed as high- .

Although the high-pressure spray nozzle or the high-pressure nozzle described above can inject high-pressure air, it is also possible to spray a high-pressure liquid. The compressed air supplied to the high-pressure spray nozzle or the high- And the high-pressure liquid can be supplied by the pressure pump.

In addition, it is possible to dispose a foreign matter inflow preventing mesh on the exhaust port of the exhaust duct to prevent insects and foreign matter from flowing through the exhaust fan when the exhaust fan stops.

Further, the liquid processing section may include a receiving chamber portion for receiving the liquid accommodated in the washing water reservoir and discharging it again, a dielectric tube disposed across the liquid accommodated inside the accommodating chamber portion and including a gas inlet and a gas outlet, A core electrode disposed inside the dielectric tube so as to be isolated from the liquid, and a gas supply unit for supplying gas to the gas inlet. However, the liquid treatment unit may adopt a facility using a drug or a filter, in addition to a method using plasma, and may be replaced with another facility in the function of purifying the liquid cleanly.

Since the dielectric tube is immersed in the liquid contained in the accommodating chamber portion but the liquid does not flow into the dielectric tube, oxidation / corrosion of the core electrode, which receives a high voltage current, is not easily caused by the liquid.

When a dielectric material such as quartz, glass, or ceramic is used as a dielectric tube and a material such as quartz that allows ultraviolet light to pass through is selected, the ultraviolet rays generated during discharging sterilize the liquid outside the dielectric tube It is possible to decompose and process odorous substances.

The dielectric tube can be made of various dielectric materials, for example, ceramic materials such as quartz, glass, and glass laminate, and the material of the dielectric tube is not limited to the above materials, Can be made of any material.

The core electrode can be made of tungsten or other metal material that has good conductivity and good conductivity and good heat resistance and strength.

The gas having the gaseous active species is discharged to the gas discharge port by the plasma discharge while being supplied to the gas inlet, passes through the inside of the dielectric tube, and flows into the accommodating chamber part again to process the liquid accommodated inside the accommodating chamber part have.

In addition, a first circulation pipe for transferring the liquid from the wash water reservoir to the liquid processing unit and a second circulation pipe for transferring the liquid from the liquid processing unit to the wash water reservoir can be disposed. The bypass pipe connecting the accommodating chamber unit and the first circulation pipe Tube. At this time, the gas discharged to the gas discharge port may flow back to the bypass pipe through the gas discharge pipe connecting the gas discharge port and the bypass pipe.

The bypass pipe may be provided with an ejector for increasing the flow rate toward the accommodating chamber portion. The gas discharge pipe is connected to the ejector and the gas discharged from the gas discharge port is sequentially passed through the gas discharge pipe and the ejector to the bypass pipe Can be introduced. At this time, the gas flowing into the bypass pipe increases in flow rate as it passes through the ejector, and flows into the accommodating chamber portion along the liquid conveyed to the accommodating chamber portion easily. Basically, the liquid flows into the bypass pipe in the first circulation pipe, the gas is mixed with the liquid to be introduced and is transferred to the accommodating chamber part. However, in some cases, It is also possible to transfer the gas from the pipe toward the first circulation pipe.

Further, an active gas inlet pipe for connecting the gas discharge pipe and the bypass pipe is disposed between the gas discharge pipe and the bypass pipe, and a U-shaped discharge pipe is disposed at one end of the gas discharge pipe and the active gas inflow pipe , The liquid flowing back into the active gas inlet pipe in the bypass pipe can be discharged through the other end of the drain pipe.

In the existing housing, there is a case where the malodor reducing device is installed on the outside and the gas is integratedly conveyed through the exhaust duct connected to the housing, and the exhaust is not smooth due to the generation of the static pressure in the exhaust duct. However, , An exhaust duct is provided in each exhaust fan and odor is treated in each exhaust duct to prevent generation of a static pressure.

Further, in the case where the exhaust duct is collected by one exhaust duct from the housing to the external odor reducing device and exhausted, the exhaust duct is susceptible to corrosion caused by odorous substances. However, in the circulating type atmospheric treatment apparatus according to the present invention, Can be disposed directly behind the exhaust fan so that the odor-causing substance can be immediately treated, and the corrosion problem of the exhaust duct is greatly reduced.

When a malodor is treated using a filter or a drug, maintenance costs such as replacement of a filter and replenishment of a drug are increased. Especially, animal offensive odor having a large amount of a maintenance ingredient has a limitation in processing. However, in the circulating-type atmospheric treatment apparatus according to the present invention, a treatment effect is high by removing the substances causing odor in multiple angles through the wet atomizing nozzle and the plasma, and the liquid is sprayed from the wet atomizing nozzle or electricity is supplied to the plasma processing apparatus Odor treatment is possible immediately and maintenance cost is reduced.

In addition, in the circulating-type atmospheric treatment apparatus according to the present invention, the liquid sprayed from the wet spray nozzle is recovered by the wash water reservoir and the liquid is reprocessed by the plasma treatment unit.

1 is a front view of a housing where a circulation type atmospheric treatment apparatus according to an embodiment of the present invention is installed.
2 and 3 are a side view and a front view of an exhaust duct of a circulating type atmospheric treatment apparatus according to an embodiment of the present invention.
4 is a plan view of a plasma processing unit of a circulating type atmospheric treatment apparatus according to an embodiment of the present invention.
5 and 6 are views of a liquid processing unit in a circulating type atmospheric treatment apparatus according to an embodiment of the present invention.
7 is a partially enlarged view of a portion A in Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. For reference, the same numbers in this description refer to substantially the same elements and can be described with reference to the contents described in the other drawings under these rules, and the contents which are judged to be obvious to the person skilled in the art or repeated can be omitted.

The circulating type atmospheric treatment apparatus according to the present invention can be installed in all kinds of organic fertilizer factory, sterile animal breeding room, animal laboratory, chemical manufacturing facility, sports center, subway history , A constant temperature and humidity warehouse, a clean room facility, and the like, and may be used to remove odor-causing substances contained in the air, and the present invention is not limited or limited by the application field and the installation place.

FIG. 1 is a front view of a housing in which a circulation type atmospheric treatment apparatus according to an embodiment of the present invention is installed, FIGS. 2 and 3 are a side view and a front view of the exhaust duct, and FIG. Fig. 5 is a side view of the liquid processing section, and Fig. 6 is a plan view.

1 to 6, the circulation type atmospheric treatment apparatus according to the present embodiment includes an exhaust duct 110, a wet spray nozzle 120, a plasma treatment unit 130, a wash water storage tank 140, and a liquid treatment unit 150 ).

The air inside the housing 10 can be forcibly discharged through a plurality of exhaust fans 12 disposed along the sidewall of the housing 10 and the outlet 114 of the exhaust duct 110 is provided with a foreign matter inflow preventing mesh 116 So that it is possible to prevent insects and foreign matter from flowing through the exhaust fan 12 when the exhaust fan stops.

Each of the exhaust fans 12 is equipped with an exhaust duct 110 on the outer side of the housing. In this embodiment, the exhaust duct 110 is provided in a substantially --folded shape, providing a wet cleaning space 112 immediately in front of the exhaust fan 12, and extending upwardly, .

Inside the exhaust duct 110, a wet spray nozzle 120 for treating the air introduced into the exhaust duct 110 in a wet manner and a plasma processor 130 for treating the exhaust gas in the exhaust duct 110 are sequentially disposed.

First, when the housing air is introduced into the wet cleaning space 112 through the exhaust fan 12, the liquid sprayed from the wet spray nozzle 120 is used to remove the odor-causing material in the air . Water may be used as the liquid, or chemicals (chlorine, sodium hypochlorite, caustic soda, aqueous hydrogen peroxide, aqueous hydrogen peroxide, aqueous ammonia, etc.) may be added to remove odors.

On the other hand, a gas-liquid separation filter 123 is disposed between the wet atomizing nozzle 120 and the plasma processing unit 130. The air exhausted from the wet cleaning space 112 through the plasma processing unit 130 to the exhaust port 114 of the exhaust duct 110 by the blowing of the exhaust fan 12 passes through the wet cleaning space 112, And the gas-liquid separation filter 123 can remove it.

The moisture-depleted air in the gas-liquid separation filter 123 may be treated by plasma in the plasma processing unit 130 disposed above the wet cleaning space 112 and discharged to the discharge port 114 of the exhaust duct 110.

In the conventional housing, the gas is integratedly transferred to the external odor reducing device through the exhaust duct connected to the housing. In this case, however, the exhaust of the housing may be stopped due to the generation of the static pressure due to the gas transfer. It is possible to prevent the generation of a static pressure in the exhaust duct 110 and to provide the exhaust ducts 110 independent of the exhaust fans 12 because the exhaust ducts 110 are individually disposed in the exhaust fans 12 of the exhaust ducts 12, Since the wet spray nozzle 120 and the plasma treatment unit 130 are disposed inside the exhaust duct 110 to treat the odor immediately, the corrosion problem of the exhaust duct 110 can be reduced.

In addition, it is possible to remove odorous substances in a multifaceted manner through the wet and plasma processes, so that the treatment effect is great. In addition, the liquid is sprayed from the wet spray nozzle 120 or electricity is supplied to the plasma treatment unit 130, Maintenance costs are also reduced because replacement of the nozzle or plasma facility is not required except for faults.

The liquid filtered by the gas-liquid separation filter 123 falls along with the liquid sprayed from the wet spray nozzle 120 to the lower portion of the wet cleaning space 112 and the liquid pumped to the lower portion of the exhaust duct 110 passes through the discharge pipe 118 To the wash water reservoir 140. [0050] Therefore, when the liquid in the wash water reservoir 140 is reused, there is no loss of liquid and there is no need to supply additional liquid. The gas-liquid separation filter 123 serves to prevent a large amount of liquid from flowing into the plasma processing unit 130 connected to the power source. The gas-liquid separation filter 123 is provided with a demister filter Can be used.

A high-pressure injection nozzle 125 for injecting high-pressure air or liquid can be disposed above the gas-liquid separation filter 123. The high-pressure injection nozzle 125 can be used to remove foreign matters filtered by the gas- And the liquid mixed with the foreign matter can also be transferred to the wash water storage tank 140 through the discharge pipe 118 connected to the exhaust duct 110.

The washing water storage tank 140 can temporarily recover the contaminated liquid generated by treating the air in the wet washing space 112 and the dirty foreign matter generated when the water is filtered by the gas-liquid separation filter 123, ) And cleaned.

The liquid processed in the liquid processing unit 150 may be supplied again to the wet spraying nozzle 120. In this embodiment, however, the liquid processed in the liquid processing unit 150 is supplied to the washing water storage tank 140 and the liquid processing unit 150 The liquid circulated through the liquid treatment unit 150 is circulated through the first and second circulation pipes 156 and 158 connecting the first and second circulation pipes 156 and 158 to the wash water reservoir 140 to the wet atomizing nozzle 120.

In addition, although the liquid in the wash water storage tank 140 is processed in the liquid processing unit 150, it can be replaced periodically and, in some cases, a separate chemical treatment can be performed.

The plasma processing unit 130 according to the present embodiment includes a ground electrode 132 and a discharge electrode 134. The ground electrode 132 is provided as a plate arranged in parallel to the movement path of the air, A plurality of discharge electrodes 134 provided in a rod shape are disposed.

The ground electrode 132 and the discharge electrode 134 may be fixed directly to the inside of the exhaust duct 110 but may be fixed by a fixed stand of a material having high heat resistance. Since a high-voltage current is transmitted to the fixing member 134, an ethylene resin such as Teflon, which has good heat resistance and good insulation, can be used as the fixing table.

The power supply unit is provided to apply a power for discharging at a different voltage to either or both of the ground electrode 132 and the discharge electrode 134 and supplies power to the ground electrode 132 and the discharge electrode 134 through the power supply unit. A corona discharge is generated between the ground electrode 132 and the discharge electrode 134.

When a corona discharge occurs between the ground electrode 132 and the discharge electrode 134, various chemically active species may be generated between the ground electrode 132 and the discharge electrode 134. For example, an oxidizing active species can be formed, and odorous substances passing through the corona discharge space can be removed by the oxidizing active species.

Meanwhile, the high-pressure cleaning nozzle 135 disposed directly above the plasma processing unit 130 can remove the dust collected at the ground electrode and the discharge electrode of the plasma processing unit by high-pressure air or liquid by injecting compressed air or liquid. When the plasma processing unit 130 is temporarily stopped, a compressed liquid is sprayed to generate an electrical short between the discharge electrode and the ground electrode due to the liquid during the plasma high pressure discharge, It is possible to prevent damage due to a connection such as a short circuit.

The high pressure injection nozzle 125 and the high pressure cleaning nozzle 135 are provided so as to be able to receive the compressed air and the high pressure liquid by the air compressor 126 and the pressure pump 136 provided outside, respectively, Both the high-pressure spray nozzle and the high-pressure wash nozzle can be supplied with liquid or high-pressure air.

The dirty liquid generated by processing the air in the housing is collected in the wash water storage tank 140 through the discharge piping 118 connected to the respective exhaust ducts 110 and the liquid processing unit 150 is disposed in the wash water storage tank 140 To receive the liquid and clean it.

The liquid processing portion 150 of the present embodiment includes an accommodating chamber portion 151, a dielectric tube 152, and a core electrode 153.

The accommodation chamber part 151 receives and receives the liquid contained in the wash water storage tank 140 through the first circulation pipe 156. The liquid in the accommodating chamber part 151 is again sent to the wash water storage tank 140 through the second circulation pipe 158. [

The dielectric tube 152 is provided so as to be immersed in the liquid inside the accommodating chamber portion 151 and can use a ceramic material having a transparent property such as glass, quartz, or glass laminate. Therefore, ultraviolet rays generated by the plasma discharge inside the dielectric tube 152 can be directly transmitted through the dielectric tube 152 and irradiated with the liquid contained in the accommodating chamber part 151, thereby enhancing ultraviolet treatment efficiency of the liquid. The number of dielectric tubes 152 in this embodiment may be varied to improve the treatment effect of the liquid.

The core electrode 153 may be made of tungsten, titanium, stainless steel, carbon steel or other metal material having good conductivity and good heat conductivity and strength, and may be disposed inside the dielectric tube 152, .

Such as a blower, which supplies AC high voltage, that is, power, supplied from the power supply unit to the core electrode 153 fixed inside the dielectric tube 152 by the fixing member and compresses and supplies the gas at the same time, When air is supplied into the tube 152, the inside of the dielectric tube 152 is separated from the insulation and placed in a discharge state, i.e., a plasma state. At this time, gas active species such as ozone, radicals, ions, electrons and excited molecules from the gas supplied forcibly to the inside of the dielectric tube 152, and gas active species such as excited molecules, A plasma product such as ultraviolet rays of a wavelength is emitted. The air can be introduced into the upper opening of the dielectric tube exposed above the accommodating chamber part 151 and the air can be discharged into the lower opening of the dielectric tube exposed below the accommodating chamber part 151.

The liquid treatment unit 150 may be a basic plasma treatment equipment using a barrier discharge, and reference is made to the plasma water treatment equipment of the registered patent 10-1210558.

Particularly, since the dielectric tube 152 is immersed in the aqueous liquid but the liquid does not flow into the dielectric tube 152, oxidation / corrosion of the core electrode, which receives a high-voltage current, is not easily caused by the liquid- The core electrode is not in direct contact with the liquid, so power loss can be minimized.

The treated liquid as described above may be supplied directly to the nozzle in the accommodating chamber portion 151 or may be supplied to the nozzle once it has been sent to the wash water reservoir 140. [

The above table is an analytical table of the sterilization process of the washing water applied to the circulatory type air treatment apparatus according to the present invention, and analyzed four items other than chemical oxygen demand (COD). Washing water was collected from a 1,000 liters / PE water tank / 900 liters of actual wash water reservoir. The sample was collected from 12:40 to 17:38 (every 30 minutes) ~ 30 degrees. It was confirmed that the chemical oxygen demand due to the suspended substances and the treatment of nitrogen or phosphorus was 53.9% in only 3 hours, and E. coli was almost eradicated.

The dirty liquid contained in the wash water storage tank 140 is processed in the liquid processing unit 150, and the process of processing the liquid will be described below.

First, the contaminated water in the wash water storage tank 140 flows into the accommodating chamber part 151 through the first circulation pipe 156, and the plasma activated gas passing through the ejector 160 during the inflow of the contaminated water flows into the venturi ≪ / RTI >

The inflow fluid and the fluid in which the plasma gas passing through the venturi tube is dissolved is sterilized by being stirred in the space of the accommodating chamber part 151. In the accommodating chamber part 151, sterilization with ultraviolet rays irradiated from the dielectric tube 152 .

The contaminated water flowing from the lower part of the accommodating chamber part 151 moves upward while rotating inside the accommodating chamber part 151 and is conveyed to the washing water storage tank 140 again along the second circulating pipe 158.

The internal structure of the accommodating chamber part 151 is designed to have a structure sufficient to form a turbulent flow of the fluid and the pressure difference between the discharge pressure of the first circulating pipe 156 and the accommodating chamber part 151, Mixing action occurs smoothly due to fluid pressure difference.

Hereinafter, the process of introducing and discharging the plasma activating gas will be described in detail.

First, the gas supplied from the outside is sucked by the venturi effect of the ejector 160, and a device for supplying the gas is not necessary. Specifically, the gas is supplied to the upper housing cap 154 from the gas supply pipe 172 connected to the gas supply unit such as the blower, The gas in the cap 154 flows into the hollow interior thereof through the gas inlet of the dielectric tube 152. The introduced gas can select various kinds of gases such as air, oxygen, nitrogen, and argon by grasping the characteristics of the plasma activated gas. When the power is supplied through the power supply unit, the dielectric tube 152 and the core electrode 153 And the plasma activated gas is discharged through the gas discharge port of the dielectric tube 152 to the inside of the dielectric tube 152, The liquid which has been introduced into the cap 155 and then transferred to the accommodating chamber portion 151 through the gas discharge pipe 174 connected to the lower housing cap 155 is treated with the active gas .

A part of the liquid transferred to the accommodating chamber part 151 of the liquid processing part 150 through the first circulating pipe 156 is supplied to the accommodating chamber part 151 and the first circulating pipe The gas discharged from the gas discharge pipe 174 flows into the bypass pipe 170 and can be transferred to the accommodating chamber part 151. That is, a part of the liquid in the first circulation pipe 156 is discharged from the gas discharge pipe 174 connected to the bypass pipe 170 in the process of being transferred to the accommodating chamber part 151 through the bypass pipe 170 The gas is transported together.

An ejector 160 is disposed in the bypass pipe 170 and a gas discharge pipe 174 is connected to the ejector 160. In this embodiment, the gas discharge pipe 174 is not directly connected to the ejector 160 but is connected to the gas discharge pipe 174 through the active gas inlet pipe 176 connected to the gas discharge pipe 174, (Not shown).

6, an ejector 160 for increasing the flow rate toward the accommodating chamber portion in the bypass pipe may be disposed, and the active gas inlet pipe 176 may be disposed in the ejector 160 The gas exhausted from the gas discharge port of the dielectric tube 152 flows into the accommodating chamber part 151 through the gas discharge pipe 174, the active gas inlet pipe 176, and the ejector 160 in order . At this time, the gas flowing into the bypass pipe 170 flows into the first circulation pipe 156 easily along the liquid whose flow rate increases through the ejector 160.

The ejector 160 is provided so that the flow rate from the first circulation pipe 156 toward the accommodating chamber part 151 is increased. In order to perform the inhalation action of the venturi pipe, the pressure difference between the venturi pipe and the venturi pipe must be 0.5 kg / cm ² or more. As the pressure difference between the first circulation pipe 156, which is the fluid passing pipe, and the venturi pipe, ≪ / RTI >

The gas discharge pipe 174 is connected to the ejector 160 through the active gas inlet pipe 176 and the gas discharge pipe 174 is connected directly to the ejector 160. However, A U-shaped trap pipe 180 is further disposed between the active gas inlet pipe 174 and the active gas inlet pipe 176.

Either one of the upper portions (or the end portions) of the U-shaped trap pipe 180 is positioned lower than the other of the upper portions of the U-shaped trap pipe 180 and the outlet (not shown) of the gas discharge pipe 174 175 and the inlet 177 of the active gas inlet pipe 176 are connected. A drain pipe 182 is connected to an upper portion of the upper portion of the U-shaped trap pipe 180, which is relatively low. The first water level of the pipe water 184 is disposed lower than the position of the U-shaped trap pipe 180 to which the water drain pipe 182 is connected.

Therefore, the fluid flowing backward through the active gas inlet pipe 176 flows out through the drain pipe 182 as a trap operation. Specifically, when the liquid flows backward through the ejector 160 connected to the first circulation pipe 156, the liquid is discharged and flows back to the lower housing cap 155 through the gas discharge pipe 174 .

The air compressor (air pump) for supplying the gas may cause problems due to backflow of water into the plasma apparatus when pressure disparity due to the operation of the water supply pump and uneven operation of the apparatus operation occur. However, in this embodiment, The ejector 160 applying the Bernoulli principle is installed in the middle of the bypass pipe and the air is supplied to the accommodating chamber 151 through the ejector 160 connected to the flow rate of the water flowing in the pipe.

Water and nonvolatile fluid may be used as the number of pipes 184 provided at the lower portion of the U-shaped trap pipe 180 and the gas space may be kept constant at the upper portion of the U-shaped trap pipe 180.

It is also possible to adjust the opening / closing degree of the main piping valve 159 and the ejector piping valve 179 for controlling the flow of the fluid flowing into the accommodating chamber part 151 from the wash water storage tank 140, And a gas flow meter 178 is installed to measure the flow rate of the plasma active gas introduced into the fluid through the venturi pipe, thereby enabling the valve to be adjusted.

In addition, the first circulation pipe 156 for supplying the fluid to the accommodating chamber part 151 partially extends to the inside of the accommodating chamber part 151, which can be seen in part A of FIG. 6 and in FIG.

When the pressure of the fluid flowing into the accommodating chamber part 151 from the end of the first circulation pipe 156 is high and foreign matter in the fluid is contained, if a shock of fluid is directly transmitted to the dielectric pipe 152 provided at the front end, The end of the first circulation pipe 156 inside the accommodating chamber part 151 for protecting the dielectric tube 152 is prevented from being damaged by the flow of the fluid toward the wall surface inside the accommodating chamber part 151 .

A separate guide plate 157 is provided at the end of the first circulation pipe 156 to refract the end of the first circulation pipe 156 and direct the flow direction of the fluid toward the wall surface in the accommodating chamber part 151, The dielectric tube 152 can be protected and the flow of the reaction fluid can be formed as a turbulent flow inside the accommodating chamber portion.

The plasma-activated gas pipe connection structure of the bypass pipe 170 mixes the circulating liquid flowing into the ejector with the gas mixed by the gas mixture and reacts with the liquid / gas. The mixed fluid (fluid + plasma activated Gas) is sterilized while mixing with the fluid introduced from the first circulation pipe 156.

The fluid flowing from the outside is distributed and transferred to the first circulation pipe 156 and the bypass pipe 170 and the amount of the fluid flowing in the pipe of the first circulation pipe 156 and the bypass pipe 170 is The valves 159 and 179 can be adjusted and distributed and the valves 159 and 179 can be adjusted to change the amount of the plasma activated gas inflow which is a major factor in the water treatment operation, Can be adjusted. The fluid including the active gas introduced from the bypass pipe 170 diffuses in the accommodating chamber part 151 and reacts violently with the fluid introduced from the first circulation pipe 156 to react with the plasma activating gas.

Although the present invention has been described with reference to the preferred embodiments thereof, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined in the following claims. It can be understood that

10: housing 12: exhaust fan
110: exhaust duct 112: wet cleaning space
120: wet spray nozzle 123: gas-liquid separation filter
125: high-pressure spray nozzle 130: plasma processing unit
135: High pressure wash nozzle 140: Wash water reservoir
150: liquid processing unit 160: ejector
170: bypass pipe 180: trap pipe
182: Drain pipe

Claims (13)

1. A circulating type atmospheric treatment apparatus for removing odor-causing substances from air discharged through a plurality of exhaust fans installed in a housing,
An exhaust duct mounted on each of the exhaust fans outside the housing for providing a wet cleaning space in front of the exhaust fan and extending above the wet cleaning space and having an outlet at an end thereof;
A wet spray nozzle disposed above the wet cleaning space and treating the air introduced into the wet cleaning space into a liquid;
A plasma processing unit disposed above the wet atomizing nozzle and treating the air treated in the wet cleaning space with plasma;
A washing water reservoir for recovering liquid sprayed from the wet spray nozzle through an exhaust pipe connected to the exhaust duct in a lower part of the wet cleaning space; And
A liquid processing unit for processing the liquid contained in the wash water reservoir;
Wherein the circulation type air processing apparatus comprises: The method according to claim 1,
Wherein the liquid treated in the liquid treatment section is repeatedly treated in the liquid treatment section while circulating in the wash water storage tank. The method according to claim 1,
And the liquid processed in the liquid processing unit is supplied again to the wet atomizing nozzle. The method according to claim 1,
And a gas-liquid separation filter disposed between the wet atomizing nozzle and the plasma processing section,
Wherein the air in the wet cleaning space is filtered by the gas-liquid separation filter so that the liquid contained in the air is introduced into the plasma processing unit. 5. The method of claim 4,
And a high-pressure spray nozzle disposed above the gas-liquid separation filter for spraying high-pressure air or liquid. The method according to claim 1,
Wherein the plasma processing unit includes a ground electrode extending along a flow direction of the air flowing into the exhaust duct and a discharge electrode disposed between the ground electrodes,
And the odor-causing substance is removed by a plasma discharge generated at the edges of the ground electrode and the discharge electrode. The method according to claim 6,
And a high-pressure cleaning nozzle disposed at an upper portion of the plasma processing unit for spraying and removing high-pressure air or liquid from the dust collected at the ground electrode and the discharge electrode of the plasma processing unit. The method according to claim 1,
The liquid processing unit includes:
An accommodating chamber portion through which the liquid accommodated in the wash water reservoir is introduced and discharged;
A dielectric tube disposed across the liquid contained in the receiving chamber portion and including a gas inlet and a gas outlet separated from the liquid;
A core electrode disposed inside the dielectric tube so as to be isolated from the liquid; And
A gas supply unit for supplying gas to the gas inlet;
Wherein the circulation type air processing apparatus comprises: 9. The method of claim 8,
A gas supplied to the gas inlet and passing through the inside of the dielectric tube and having gas active species by plasma discharge is discharged to the gas outlet,
And the liquid introduced into the accommodating chamber portion again to process liquid contained in the accommodating chamber portion. 10. The method of claim 9,
A first circulation pipe for transferring the liquid from the wash water reservoir to the liquid processing unit and a second circulation pipe for transferring the liquid from the liquid processing unit to the wash water reservoir,
And a bypass pipe connecting the accommodating chamber portion and the first circulation pipe, wherein the gas discharged to the gas discharge port passes through the gas discharge pipe connecting the gas discharge port and the bypass pipe to the bypass pipe And the air is introduced again. 11. The method of claim 10,
An ejector is disposed in the bypass pipe. The gas exhaust pipe is connected to the ejector, and the gas discharged from the gas discharge port is sequentially introduced into the bypass pipe through the gas discharge pipe and the ejector Is mixed with the liquid of the first circulation pipe connected to the accommodating chamber part and processed. 11. The method of claim 10,
An active gas inlet pipe connecting the gas discharge pipe and the bypass pipe is disposed between the gas discharge pipe and the bypass pipe,
Shaped exhaust pipe connected to one end of the gas discharge pipe and the active gas inlet pipe is disposed in the bypass pipe and the liquid flowing backward from the bypass pipe to the active gas inlet pipe is discharged through the other end of the discharge pipe Wherein said atmospheric treatment apparatus is a circulating type atmospheric treatment apparatus. 9. The method of claim 8,
The end of the first circulation pipe for transferring the liquid from the wash water reservoir to the liquid processing section extends to the inside of the accommodating chamber section of the liquid processing section,
The end extending to the inner side is refracted so as to switch the path of the liquid flowing into the accommodating chamber portion from the first circulating pipe from the dielectric tube to the inside of the accommodating chamber portion so as to prevent the liquid from directly leading to the dielectric tube And induces turbulence in the inside of the accommodating chamber portion.

Images