KR20170109187A - Apparatus for filtering volatile organic compounds and method for filtering volatile organic compounds - Google Patents

Abstract

A volatile organic compound removing apparatus according to an embodiment of the present invention includes: a contaminated air supply unit supplying contaminated air containing volatile organic compounds; a cooling unit receiving the contaminated air and cooling the contaminated air; and a filter unit receiving the contaminated air passed through the cooling unit, and adsorbing the volatile organic compounds contained in the contaminated air. According to the present invention, atmospheric heat pollution due to the heat of the contaminated air at a high temperature can be prevented.

Description

TECHNICAL FIELD [0001] The present invention relates to an apparatus for removing volatile organic compounds (VOCs)

The present invention relates to a device for removing volatile organic compounds and a method for removing volatile organic compounds.

Volatile Organic Compound (VOCs) refers to a liquid or gaseous organic compound that is easily vaporized in the atmosphere due to its high vapor pressure. Volatile organic compounds can cause leukemia, central nervous system disorders, and chromosomal abnormalities in humans as carcinogens that cause damage through respiratory inhalation. In addition, volatile organic compounds can cause environmental problems such as photochemical smog generated by photochemical oxides generated by ozone layer destruction, global warming, and chain reactions of volatile organic compounds. In addition, volatile organic compounds are mostly irritating and contain an unpleasant smell, which can cause enormous damage to the living environment when they are released into the atmosphere. Most of the volatile organic compounds are artificially generated by human activities, and there are also various causes such as petrochemical plants, paint factories and automobile exhaust gas. The hazards of these volatile organic compounds are being taken more seriously in the metropolitan areas where people are concentrated, and studies and efforts have been made in various fields to reduce them

SUMMARY OF THE INVENTION The present invention provides a device for removing volatile organic compounds that can remove volatile organic compounds generated during a process.

Another object of the present invention is to provide a device for removing volatile organic compounds which prevents the occurrence of heat pollution in the atmosphere due to heat of high temperature polluted air.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a method of manufacturing the same.

The apparatus for removing volatile organic compounds according to an embodiment of the present invention includes a contaminated air supply unit for supplying contaminated air containing volatile organic compounds, a cooling unit for flowing the contaminated air, cooling the contaminated air, And a filter unit into which air flows and adsorbs the volatile organic compounds contained in the polluted air.

The cooling unit may include a heat exchanger for exchanging heat between the outside air and the contaminated air.

In addition, the cooling unit may include a cooling coil for cooling the contaminated air.

The apparatus may further include a drain device that at least a part of the contaminated air is liquefied by the cooling section and treats the liquefied polluted air.

Further, the filter unit may include at least one filter, and the filter may include at least one selected from the group consisting of a filter using a chemisorbent, a filter using a physical adsorbent, a filter made of a porous material, and a filter applied with a catalyst .

According to another aspect of the present invention, there is provided an apparatus for removing volatile organic compounds (VOCs), comprising: an oven for supplying polluted air containing volatile organic compounds; a cooling unit for cooling the polluted air into which the polluted air is introduced; A first filter connected to the oven to transfer the polluted air provided from the oven and connected to the outside air through the cooling unit and the first filter, And a second conduit connected to the first conduit and the outside air to transmit external air to the cooling unit.

The cooling unit may include a heat exchanger for exchanging heat between the outside air and the contaminated air.

Further, in the heat exchanger, the first conduit and the second conduit can directly contact each other.

In addition, the first conduit and the second conduit may be twisted with each other, have at least one bend, and be in contact with each other.

One end of the second conduit may be connected to the outside air, and the other end of the second conduit may be connected to the oven.

In addition, the first filter may include any one selected from the group consisting of a filter using a chemical adsorbent, a filter using a physical adsorbent, a filter made of a porous material, and a filter using a catalyst.

The apparatus may further include a drain device that at least a part of the contaminated air is liquefied by the cooling section and treats the liquefied polluted air.

The apparatus may further include a third pipe connecting the recovery tank connected to the drain device and the heat exchanger, the drain device, and the recovery tank, wherein one end of the third pipe is connected to the heat exchanger, May be connected to the first conduit.

Further, the cooling section may include at least one cooling coil.

And a second filter adjacent to the first filter, wherein the cooling coil includes a first cooling coil and a second cooling coil, wherein the first cooling coil, the first filter The second filter, and the second cooling coil may be sequentially arranged.

Further, the cooling section may include a heat exchanger and a cooling coil, and the heat exchanger and the cooling coil may be disposed along the first conduit.

The apparatus may further include a front end filter disposed along the first conduit and disposed between the oven and the cooling section.

A method for removing volatile organic compounds according to an embodiment of the present invention includes the steps of providing polluted air containing a volatile organic compound, cooling the provided polluted air, And adsorbing the volatile organic compounds contained in the air.

The step of cooling the supplied polluted air may include a step of heat-exchanging the polluted air with the external air using a heat exchanger.

In addition, the method may further include cooling at least the contaminated air to liquefy the polluted air, and treating and storing the liquefied polluted air.

According to the embodiments of the present invention, volatile organic compounds can be adsorbed and removed from polluted air containing volatile organic compounds.

It is possible to prevent atmospheric heat pollution caused by heat of the polluted air at a high temperature.

The effects according to the embodiments of the present invention are not limited by the contents exemplified above, and more various effects are included in the specification.

1 is a block diagram of an apparatus for removing volatile organic compounds according to an embodiment of the present invention.
2 is a process flow diagram of an apparatus for removing volatile organic compounds according to an embodiment of the present invention.
3 is a partial enlarged view of a heat exchanger for removing volatile organic compounds according to an embodiment of the present invention.
4 is a partially enlarged view of a heat exchanger for removing volatile organic compounds according to a modification of FIG.
5 is a process flow diagram of an apparatus for removing volatile organic compounds according to another embodiment of the present invention.
6 is a process flow diagram of an apparatus for removing volatile organic compounds according to another embodiment of the present invention.
7 is a process flow diagram of an apparatus for removing volatile organic compounds according to another embodiment of the present invention.
8 is a process flow diagram of an apparatus for removing volatile organic compounds according to another embodiment of the present invention.
FIG. 9 is a process flow diagram of an apparatus for removing volatile organic compounds according to another embodiment of the present invention.
FIG. 10 is a process flow diagram of an apparatus for removing volatile organic compounds according to another embodiment of the present invention.
11 is a process flow diagram of an apparatus for removing volatile organic compounds according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

The first, second, etc. are used to describe various components, but these components are not limited by these terms, and are used only to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may be the second component within the technical scope of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. However, the display device according to the present invention will be described in the context of a liquid crystal display device, but the present invention is not limited thereto and can be applied to an organic light emitting display device.

1 is a block diagram of an apparatus for removing volatile organic compounds according to an embodiment of the present invention.

Referring to FIG. 1, the apparatus for removing volatile organic compounds according to an embodiment of the present invention includes a contaminated air supply unit (OV) for supplying polluted air containing volatile organic compounds, And a filter unit (FI) into which the polluted air passing through the unit (RE) and the cooling unit (RE) flows and which absorbs the volatile organic compounds contained in the polluted air.

The polluted air supply (OV) can produce polluted air containing volatile organic compounds (VOC). In this specification, it is understood that a volatile organic compound (VOC) is a liquid or gaseous organic compound which is easily vaporized into the atmosphere due to its high vapor pressure. For example, a volatile organic compound (VOC) may be a benzene (C6H6), a formaldehyde (HCHO), a toluene (Toluene, C7H8), a xylene, a C6H4 = CH 2), styrene (C 8 H 8), and acetaldehyde (CH 3 CHO). In addition, volatile organic compounds (VOCs) can include odor inducing substances that cause odors in the air.

The contaminated air supply (OV) can discharge the contaminated air at a high temperature. In an exemplary embodiment, the temperature of the contaminated air may range from 100 to 600. The term "contaminated air at a high temperature" in this specification refers to a gas having a temperature not lower than room temperature, which can be generated by including a process of heating in a specific process.

The contaminated air supply (OV) may include an oven having a heating function. The term " oven " as used herein means an apparatus including all the means for heating the temperature of the object, and is not limited by the specific heating method thereof.

The contaminated air supplied from the contaminated air supply part (OV) can be introduced into the cooling part RE. The cooling unit RE serves to lower the temperature of the contaminated air. Illustratively, the cooling section RE can lower the temperature of the contaminated air to 40 or less. In this process, some of the polluted air can condense and liquefy. The apparatus for removing volatile organic compounds according to an embodiment of the present invention may further include a drain device for treating the liquefied polluted air. A detailed description thereof will be described later.

The cooling unit RE may include a heat exchanger as a means for lowering the temperature of the contaminated air introduced from the contaminated air supply unit OV. The heat exchanger may be an air-cooled heat exchanger that cools the contaminated air using outside air. More specifically, the heat exchanger exchanges the heat of the external air and the contaminated air to induce the thermal equilibrium state of the both, thereby reducing the temperature of the contaminated air. In other words, a duct for introducing polluted air and a duct for introducing outside air may be disposed inside the heat exchanger. At this time, by bringing the duct into which the polluted air flows and the duct into which the outside air flows, Lt; / RTI > In this case, the two air are not mixed, and thermal equilibrium can be induced by the heat conduction through the conduit. That is, the temperature of the polluted air is relatively lowered by the outside air, and the temperature of the outside air can be relatively increased by the temperature of the polluted air.

The polluted air whose temperature is lowered in the heat exchanger can be introduced into the filter unit FI described later. The outside air having a high temperature in the heat exchanger may be discharged to the outside again or may be introduced into the polluted air supply part and reused. A detailed explanation will be given later.

In another exemplary embodiment, the cooling portion RE may include a cooling coil to lower the temperature of the contaminated air introduced from the contaminated air supply OV. The contaminated air can be cooled through the cooling coil. Specifically, refrigerant such as Freon is transferred to the cooling coil, and the temperature gradually decreases while the contaminated air of high temperature passes through the cooling coil. Some or all of which may be condensed, and may further include a drain device for treating the liquefied polluted air. The drain device will be described later in detail.

In some embodiments of the present invention, the cooling portion RE may include one or more heat exchangers and / or one or more cooling coils. That is, the cooling section RE may include one or more heat exchangers, or may include one or more cooling coils. Further, the cooling section RE may simultaneously include one or more heat exchangers and one or more cooling coils.

The polluted air passing through the cooling section RE can flow into the filter section FI along the duct.

The filter section (FI) cleans the contaminated air. To this end, the filter unit FI can filter out odor-inducing substances that cause volatile organic compounds (VOC) and / or odors contained in the polluted air. The filter section FI may include a filter for adsorbing odor-inducing substances causing organic compounds (VOC) and / or odors to filter off odor-inducing substances that cause volatile organic compounds (VOCs) and / or odors .

The filter section FI may comprise one or more filters. Depending on the type of volatile organic compound (VOC) or odor evoking substance, the filter may comprise a physical adsorbent or a chemisorbent. The physical adsorbent or the chemisorbent can be applied selectively or in combination. In other words, the filter may comprise any one or more selected from the group consisting of a physical adsorbent and a chemisorbent.

The physical adsorbent or the chemisorbent may include water. When the physical adsorbent or the chemical adsorbent comprises water, removal of water-soluble volatile organic compounds (VOC) may be facilitated.

The filter applied to the filter portion FI may include a porous material to collect volatile organic compounds (VOCs) and / or odor-inducing substances that cause odors. Illustratively, the filter may comprise one or more materials selected from polymers, zeolites, activated carbons, metal oxides and ceramics. Thus, when the filter includes a porous material, the odor-inducing substance that causes volatile organic compounds (VOC) and / or odor contained in the polluted air can be collected in the porous material of the filter in a molecular unit.

In order to improve the filtration performance of the filter, the filter may comprise a catalyst that helps capture volatile organic compounds (VOCs) and / or odor-inducing substances that cause offensive odors. Illustratively, the catalyst may be a platinum-based oxidation catalyst. The platinum-based oxidation catalyst is a low-temperature oxidation catalyst, and may be a mixture of aluminum oxide (Al 2 O 3) and platinum (Pt). Such a catalyst may be used in a temperature range of 200 캜 to 300 캜. As another example, the catalyst may be a nickel / cobalt based oxidation catalyst. The nickel / cobalt-based oxidation catalyst is made of a mixture of aluminum oxide (Al 2 O 3) and nickel / cobalt as a pyrometallurgical oxidation catalyst. Such a catalyst can be used in a temperature range of 300 占 폚 or higher.

The filter unit FI can be used alone or in combination of a plurality of filters of the above-described various methods. That is, the filter unit FI may include a plurality of filters performing different functions. That is, the filter unit FI may include one or more filters selected from the group consisting of a filter using a chemical adsorbent, a filter using a physical adsorbent, a filter made of a porous material, and a filter using a catalyst. That is, the filter unit FI may include a combination of filters having different functions.

The various types of filters included in the filter section FI may have temperature compatibility. In other words, the filter can exhibit improved filtration performance at certain temperatures. That is, as described above, the contaminated air is not directly transferred to the filter unit FI but is transmitted through the cooling unit RE, thereby improving the purifying capability of the filter unit FI.

Hereinafter, a more specific embodiment of the present invention will be described.

2 is a process flow diagram of an apparatus for removing volatile organic compounds according to an embodiment of the present invention.

Referring to FIG. 2, the apparatus for removing volatile organic compounds according to an embodiment of the present invention includes an oven (OV1) for supplying polluted air containing volatile organic compounds, a heat exchanger A first filter FI1 into which the contaminated air having passed through the heat exchanger EX1 and the heat exchanger EX1 flows and which absorbs the volatile organic compounds contained in the polluted air, a second filter FI2 connected to the oven OV1, And includes a first duct L1 connected to the outside air through the heat exchanger EX1 and the first filter FI1 and a second duct connected to the outside air and delivering outside air to the heat exchanger EX1.

The oven (OV1) can generate polluted air containing volatile organic compounds (VOC).

The oven (OV1) can discharge polluted air of high temperature. In an exemplary embodiment, the temperature of the contaminated air may be 100-600. However, the temperature of the polluted air is not limited thereto, and in this specification, the polluted air at a high temperature can be understood as a general term of a gas having a temperature of room temperature or higher which can be generated by including a heating process in a specific process.

The oven OV1 may include means for increasing the temperature of the object, and the specific manner thereof is not limited. Illustratively, the oven OV1 may be an oven used in the baking process of the liquid crystal display. In this case, the temperature of the contaminated air may be from 150 to 230. However, it is to be understood that the scope of the present invention is not limited to the above-described process and temperature.

The contaminated air generated in the oven OV1 may be introduced into the heat exchanger EX1 through the first conduit L1 described later. The heat exchanger EX1 may be disposed inside the sealed first chamber CH1. The first chamber CH1 may provide a space with the outside air. By providing the space in which the first chamber CH1 is shielded from the outside air, it is possible to prevent unexpected inflow of outside air and contamination of outside air due to contaminated air outflow.

The heat exchanger EX1 can lower the temperature of the contaminated air introduced from the oven OV1. That is, the heat exchanger EX1 may be an air-cooled heat exchanger that uses the outside air to lower the temperature of the contaminated air. Specifically, the heat exchanger EX1 exchanges heat between the outside air and the contaminated air to induce the thermal equilibrium state of both, thereby reducing the temperature of the contaminated air. In other words, external air having a normal temperature can be introduced into the heat exchanger EX1 through the second conduit L2, which will be described later. The first conduit L1 in which the contaminated air moves and the second conduit L2 in which the outside air moves can physically contact the inside of the heat exchanger EX1. The heat exchange between the first channel L1 and the second channel L2 can be performed by physical contact between the first channel L1 and the second channel L2. That is, the thermal equilibrium of both can be induced by the thermal conduction according to the contact between the first conduit (L1) and the second conduit (L2). That is, as the first conduit L1 and the second conduit L2 come into contact with each other, the temperature of the first conduit L1 having a relatively high temperature is lowered and the temperature of the second conduit L2 having a relatively low temperature Can be increased. Accordingly, the temperature of the polluted air passing through the first duct L1 becomes lower, and the temperature of the outside air passing through the second duct L2 becomes higher. That is, by adopting such a method, the contaminated air and the outside air can be exchanged without mixing.

Reference is made to Figs. 3 and 4 to describe the manner in which the first conduit L1 and the second conduit L2 are in contact in the heat exchanger EX1.

3 is a partial enlarged view of a heat exchanger for removing volatile organic compounds according to an embodiment of the present invention.

Referring to FIG. 3, the first conduit L1 and the second conduit L2 may be in direct contact with each other in the heat exchanger EX1.

As described above, the first conduit L1 and the second conduit L2 can exchange heat through the conduction system. Accordingly, heat exchange can be facilitated as the contact area between the first conduit (L1) and the second conduit (L2) becomes wider. The first channel L1 and the second channel L2 may be twisted by a predetermined length to widen the contact area between the first channel L1 and the second channel L2. In other words, they can be mutually twisted.

4 is a partially enlarged view of a heat exchanger for removing volatile organic compounds according to a modification of FIG.

Referring to FIG. 4, the first conduit L1 and the second conduit L2 may have one or more bends and extend in contact with each other. As described above, various methods may be employed to widen the contact area between the first conduit L1 and the second conduit L2. Illustratively, the first conduit L1 and the second conduit L2 may have at least one bend and may extend. In other words, the first conduit L1 and the second conduit L2 may be in contact with each other by a predetermined length, and the portion where the first conduit L1 and the second conduit L2 are in contact may include at least partially bent portions. That is, the first conduit (L1) and the second conduit (L2) have a corrugated form and can contact each other.

2, another configuration of the apparatus for removing volatile organic compounds according to an embodiment of the present invention will be described.

The polluted air passing through the heat exchanger EX1 can be introduced into the first filter FI1 through the first conduit L1. The first filter FI1 may be disposed in the closed second chamber CH2. The second chamber CH2 can provide a space that is shielded from outside air. By providing the space in which the second chamber CH2 is shielded from the outside air, it is possible to prevent unexpected inflow of outside air and air contamination due to polluted air outflow.

The second chamber CH2 can communicate with the first chamber CH1. That is, the first chamber CH1 and the second chamber CH2 can share a sealed space. However, the present invention is not limited thereto, and the second chamber CH2 and the first chamber CH1 may independently provide a space with respect to the outside.

The first filter FI1 may serve to purify the contaminated air that has flowed in. To this end, the first filter FI1 may include a physical adsorbent or a chemisorbent depending on the type of the volatile organic compound (VOC) or the malodor causing material. The physical adsorbent or the chemisorbent can be applied selectively or in combination. In other words, the first filter FI1 may include any one or more selected from the group consisting of a physical adsorbent and a chemisorbent.

The physical adsorbent or the chemisorbent may include water. When the physical adsorbent or the chemical adsorbent comprises water, removal of water-soluble volatile organic compounds (VOC) may be facilitated.

The first filter FI1 may include a porous material to collect volatile organic compounds (VOCs) and / or odor-inducing substances that cause odors.

Illustratively, the first filter FI1 may include at least one material selected from a polymer, zeolite, activated carbon, metal oxide, and ceramic. When the filter is made of a porous material, the volatile organic compound (VOC) contained in the polluted air and / or the odor-inducing substance causing the odor are collected in the porous material contained in the first filter FI1 .

In order to improve the filtration performance of the first filter FI1, the first filter FI1 may include a catalyst for assisting in the collection of volatile organic compounds (VOCs) and / or odor inducing substances causing odors. Illustratively, the catalyst may be a platinum-based oxidation catalyst. The platinum-based oxidation catalyst is a low-temperature oxidation catalyst, and may be a mixture of aluminum oxide (Al 2 O 3) and platinum (Pt). Such a catalyst may be used in a temperature range of 200 캜 to 300 캜. As another example, the catalyst may be a nickel / cobalt based oxidation catalyst. The nickel / cobalt-based oxidation catalyst is made of a mixture of aluminum oxide (Al 2 O 3) and nickel / cobalt as a pyrometallurgical oxidation catalyst. Such a catalyst can be used in a temperature range of 300 占 폚 or higher.

That is, the first filter FI1 may be one filter selected from the group consisting of a filter using a chemisorbent, a filter using a physical adsorbent, a filter made of a porous material, and a filter using a catalyst.

The apparatus for removing volatile organic compounds according to an embodiment of the present invention may include a first conduit L1 and a second conduit L2.

One end of the first conduit L1 is connected to the oven OV1 and is capable of delivering contaminated air generated from the oven OV1. That is, the first conduit L1 provides a path through which the contaminated air moves. The first conduit L1 is connected to the heat exchanger EX1 and can transfer the polluted air generated from the oven OV1 to the heat exchanger EX1. Since the arrangement of the first conduit L1 in the heat exchanger EX1 is as described above, a detailed description thereof will be omitted. Subsequently, the first conduit L1 can deliver the contaminated air cooled in the heat exchanger EX1 to the first filter FI1. That is, the first conduit L1 may be connected to the first filter FI1. The air filtered by the first filter FI1 may be discharged to the outside through the first conduit L1. A first exhaust fan (FANo1) may be disposed at the other end of the first conduit (L1) to facilitate the discharge of contaminated air. The first exhaust fan FANo1 can discharge the polluted air purified through the first filter FI1 to the outside.

That is, one end of the first conduit L1 may be connected to the oven OV1, and the other end of the first conduit L1 may be connected to the first exhaust fan FANo1. In other words, the first conduit L1 is connected to the oven OV1 and can communicate with the outside through the heat exchanger EX1, the first filter FI, and the first exhaust fan FANo1.

At least one of the one end and the other end of the second conduit L2 can communicate with the outside air. To this end, an inlet fan (FANi) dl may be disposed at one end of the second conduit (L2). The inlet fan FANi may serve to introduce outside air into the second conduit L2. As described above, the outside air introduced through the second conduit L2 can be introduced into the heat exchanger EX1. External air having undergone heat exchange with the polluted air moving through the first duct L1 through the heat exchanger EX1 can be discharged to the outside air through the second duct L2. A second exhaust fan (FANo2) may be disposed at the other end of the second conduit (L2) to facilitate the discharge of the outside air of the second conduit (L2). That is, one end of the second conduit L2 may be connected to the outside air through the inlet fan FANi, and the other end of the second conduit L2 may be connected to the outside air through the second outlet fan FANo2. In other words, the outside air flows through the inlet fan FANi disposed at one end of the second conduit L2 and flows through the heat exchanger EX1 to the second outlet fan FANo2 disposed at the other end of the second conduit L2 To the outside.

The volatile contaminants and / or odor-inducing substances of the polluted air whose temperature is lowered to be close to room temperature by the heat exchanger EX1 are filtered by the first filter FI1 so that the air discharged to the outside is purified air Lt; / RTI > This can prevent the contamination of the outside air, which is generated by exhausting the air containing the volatile organic compound and / or the odor-inducing substance, which is generated by the discharge of the air having the high-temperature heat.

Hereinafter, an apparatus for removing volatile organic compounds according to another embodiment of the present invention will be described. In the following embodiments, the same components as those already described are referred to as the same reference numerals, and redundant description will be omitted or simplified.

5 is a process flow diagram of an apparatus for removing volatile organic compounds according to another embodiment of the present invention.

Referring to FIG. 5, the apparatus for removing volatile organic compounds according to another embodiment of the present invention is different from the embodiment of FIG. 2 in that the other end of the second conduit L2 is connected to the oven OV1.

The other end of the second conduit L2 may be connected to the oven OV1. As described above, when heat exchange is performed in the heat exchanger EX1, the temperature of the contaminated air passing through the first pipe L1 is lowered and the temperature of the outside air passing through the second pipe L2 can be increased. When the other end of the second conduit L2 is connected to the oven OV1, the outside air having a high temperature through the heat exchanger EX1 can be reused in the oven OV1. As a result, it is possible to prevent the problem of heat pollution that may be caused by discharging the hot air to the outside, and the energy required for the process can be saved by recycling the waste heat.

6 is a process flow diagram of an apparatus for removing volatile organic compounds according to another embodiment of the present invention. Referring to FIG. 6, the apparatus for removing volatile organic compounds according to another embodiment of the present invention may further include a drain device DR.

As described above, part or all of the polluted air moving through the first channel L1 by the heat exchanger EX1 can be condensed and liquefied. In this case, the liquefied polluted air can be stored in the recovery tank via the drain device DR. To this end, the apparatus for removing volatile organic compounds according to another embodiment of the present invention may further include a third conduit L3 connected to the heat exchanger EX1 and delivering the liquefied polluted air to the drain device DR .

The drain device DR may include a first drain plate DR_1 and a second drain plate DR_2. The polluted air condensed by cooling in the heat exchanger EX1 can be transferred to the drain device DR through the third conduit L3. In this process, liquefied polluted air can be stored in the first drain plate DR_1. The liquefied polluted air stored in the first drain plate DR_1 can move to the second drain plate DR_2 through the third conduit L3. Although not shown in the drawing, a first level sensor S1 for measuring the level of the liquid contaminated air stored in the second drain plate DR_2 may be disposed in the second drain plate DR_2. The first level sensor S1 disposed on the second drain plate DR_2 can detect the level of the second drain plate DR_2 when storing the liquefied polluted air above a predetermined level. The liquefied polluted air stored in the second drain plate DR_2 can be continuously stored in the recovery tank 100 through the third conduit L3. The recovery tank 100 may be provided with a second level sensor S2 for sensing the level of the liquid contaminated air stored in the recovery tank 100. [ The second level sensor S2 monitors the amount of the liquefied polluted air stored in the recovery tank 100, and when the liquefied polluted air having a predetermined level or higher is stored, the second level control sensor S2 informs the user to replace the recovery tank 100 .

When liquefied polluted air is stored in the recovery tank 100, some liquefied polluted air may be vaporized again to become a volatile organic compound. In this case, the vaporized volatile organic compound may be introduced into the first channel L1 before the gas moves through the third channel L3 and flows into the heat exchanger EX1. That is, one end of the third conduit L3 may be connected to the heat exchanger EX1, and the other end of the third conduit L3 may be connected to the first conduit L1 before entering the heat exchanger EX1. In order to prevent the backflow of the re-vaporized volatile organic compound, a check valve V may be disposed in the third conduit L3. Specifically, the check valve V may be disposed between the recovery tank 100 and the first conduit L1 in the third conduit L3.

7 is a process flow diagram of an apparatus for removing volatile organic compounds according to another embodiment of the present invention.

Referring to FIG. 7, the apparatus for removing volatile organic compounds according to another embodiment of the present invention differs from the embodiment of FIG. 2 in that a shear filter (sFI) is disposed on the first channel L1.

A pre-stage filter sFI may be disposed on the first conduit L1. Specifically, the pre-stage filter sFI may be disposed between the oven OV1 and the heat exchanger EX1. The pre-stage filter (sFI) can perform a function of pre-filtering the contaminated air before the contaminated air passing through the first pipe (L1) flows into the heat exchanger (EX1).

The shear filter (sFI) may include a demister filter and / or a carbon filter. When the apparatus for removing volatile organic compounds according to another embodiment of the present invention includes a front end filter (sFI), it may filter the fine noxious particles of the polluted air passing through the first pipeline L1 and the odor- The burden on the first filter FI1 can be alleviated and the filtration performance of the entire volatile organic compound removal device can be improved.

8 is a process flow diagram of an apparatus for removing volatile organic compounds according to another embodiment of the present invention.

Fig. 8 is different from the embodiment of Fig. 2 in that the cooling section RE includes a first cooling coil C1 instead of the heat exchanger EX1.

The contaminated air passing through the first conduit (L1) can be introduced into the first cooling coil (C1). The first cooling coil (C1) receives cold air by a refrigerant gas or the like, and thus the temperature of the gas passing through the first cooling coil (C1) can be lowered. That is, the contaminated air can be introduced into the first filter FI1 while being cooled through the first cooling coil C1 through the first conduit L1. The contaminated air passing through the first cooling coil C1 and the first filter F1 can be discharged to the outside through the first conduit L1 again. To this end, the other end of the first conduit L1, (FANo1) can be arranged as described above. In the case of cooling the contaminated air using the first cooling coil C1, the polluted air can be cooled more quickly than the heat exchanger EX1, and the polluted air can be cooled to a lower temperature than in the case of cooling through the outside air .

FIG. 9 is a process flow diagram of an apparatus for removing volatile organic compounds according to another embodiment of the present invention. Referring to FIG. 9, the apparatus for removing volatile organic compounds according to another embodiment of the present invention is different from the embodiment of FIG. 8 in that it further includes a second cooling coil C2 and a second filter FI2.

The second cooling coil C2 may have substantially the same configuration as the first cooling coil C1. In the exemplary embodiment, the first cooling coil C1, the first filter FI1, the second filter FI2, and the second cooling coil C2 may be sequentially disposed along the first pipe L1 .

And the second filter FI2 may serve to purify the contaminated air that has flowed in. To this end, the second filter FI2 may include a physical adsorbent or a chemisorbent depending on the type of the volatile organic compound (VOC) or the malodor causing material. The physical adsorbent or the chemisorbent can be applied selectively or in combination. In other words, the second filter FI2 may include any one or more selected from the group consisting of a physical adsorbent and a chemical adsorbent.

The physical adsorbent or the chemisorbent may include water. When the physical adsorbent or the chemical adsorbent comprises water, removal of water-soluble volatile organic compounds (VOC) may be facilitated.

The second filter FI2 may include a porous material to collect volatile organic compounds (VOC) and / or odor-inducing substances that cause odors.

Illustratively, the second filter FI2 may include at least one material selected from a polymer, zeolite, activated carbon, metal oxide, and ceramic. In the case where the filter is made of a porous material, the odor-inducing substance that causes the volatile organic compound (VOC) and / or the odor contained in the polluted air is trapped in the porous material contained in the second filter .

To improve the filtration performance of the second filter FI2, the second filter FI2 may include a catalyst to help collect volatile organic compounds (VOCs) and / or odor-inducing substances causing odors. Illustratively, the catalyst may be a platinum-based oxidation catalyst. The platinum-based oxidation catalyst is a low-temperature oxidation catalyst, and may be a mixture of aluminum oxide (Al 2 O 3) and platinum (Pt). Such a catalyst may be used in a temperature range of 200 캜 to 300 캜. As another example, the catalyst may be a nickel / cobalt based oxidation catalyst. The nickel / cobalt-based oxidation catalyst is made of a mixture of aluminum oxide (Al 2 O 3) and nickel / cobalt as a pyrometallurgical oxidation catalyst. Such a catalyst can be used in a temperature range of 300 占 폚 or higher.

That is, the second filter FI2 may be one filter selected from the group consisting of a filter using a chemical adsorbent, a filter using a physical adsorbent, a filter made of a porous material, and a filter using a catalyst.

The first filter FI1 and the second filter FI2 may be substantially the same filter or may be different filters. That is, the first filter FI1 and the second filter FI2 may be the same filter or two filters selected from the group consisting of a filter using a chemical adsorbent, a filter using a physical adsorbent, a filter made of a porous material, . ≪ / RTI >

As described above, when the apparatus for removing volatile organic compounds according to another embodiment of the present invention further includes the second filter FI2, the filtering performance of the filter unit FI can be further improved.

In addition, when the contaminated air passing through the second filter FI2 is discharged to the outside through the second cooling coil C2, heat pollution of the outside air by the heat of the polluted air can be more reliably prevented.

FIG. 10 is a process flow diagram of an apparatus for removing volatile organic compounds according to another embodiment of the present invention.

Referring to FIG. 10, the apparatus for removing volatile organic compounds according to another embodiment of the present invention differs from the embodiment of FIG. 2 in that it includes both a heat exchanger EX1 and a first cooling coil C1.

The apparatus for removing volatile organic compounds according to some embodiments of the present invention may include any one of the heat exchanger EX1 and the first cooling coil C1, but may also include both of them. In this case, the contaminated air can pass through the heat exchanger EX1 and the first cooling coil C1 sequentially through the first conduit L1. It is possible to maximize the cooling performance of the cooling unit RE1 by applying the heat exchanger EX1 and the first cooling coil C1 in an overlapping manner and thereby to prevent the heat pollution of the outside air, .

11 is a process flow diagram of an apparatus for removing volatile organic compounds according to another embodiment of the present invention.

Referring to FIG. 11, the apparatus for removing volatile organic compounds according to another embodiment of the present invention is different from the embodiment of FIG. 10 in that it further includes a second filter FI2 and a second cooling coil C2.

As described above, the apparatus for removing volatile organic compounds according to some embodiments of the present invention may include a heat exchanger EX1 and a cooling coil at the same time.

The second cooling coil C2 may have substantially the same configuration as the first cooling coil C1. In the exemplary embodiment, the heat exchanger EX1, the first cooling coil C1, the first filter FI1, the second filter FI2, and the second cooling coil C2 are disposed along the first pipe L1 Can be arranged sequentially.

As described above, when the apparatus for removing volatile organic compounds according to another embodiment of the present invention further includes the second filter FI2, the filtering performance of the filter unit FI can be further improved.

In addition, when the contaminated air passing through the second filter FI2 is discharged to the outside through the second cooling coil C2, heat pollution of the outside air by the heat of the polluted air can be more reliably prevented.

 Hereinafter, a method for removing volatile organic compounds according to an embodiment of the present invention will be described. The method for removing volatile organic compounds according to an embodiment of the present invention may be performed by using an apparatus for removing volatile organic compounds according to some embodiments of the present invention. Some of the components described below may be the same as those of the apparatus for removing volatile organic compounds according to some embodiments of the present invention, and descriptions of some components may be omitted in order to avoid redundant description.

The method for removing volatile organic compounds according to one embodiment of the present invention includes the steps of providing polluted air containing volatile organic compounds, cooling the supplied polluted air, and introducing the cooled polluted air into the first filter And adsorbing the volatile organic compound.

First, a step of providing contaminated air containing a volatile organic compound may be performed. The volatile organic compound may be supplied from the contaminated air supply part. Illustratively, the contaminated air supply may include an oven and may be provided with a high temperature contaminated air in the oven. The contaminated air supply and the oven may be substantially the same as those described above in the apparatus for removing volatile organic compounds according to some embodiments of the present invention. Therefore, the description in FIGS. 1 and 2 can be applied as it is.

Then, the step of cooling the supplied polluted air is proceeded. The step of cooling the provided polluted air may include the step of cooling the polluted air through heat exchange with the outside air through the heat exchanger EX1 or the step of cooling the polluted air using the cooling coil C. [ The heat exchanger EX1 and the cooling coil C may be substantially the same as the heat exchanger EX1 and the cooling coil C described in the apparatus for removing volatile organic compounds according to some embodiments of the present invention. Therefore, the description of FIG. 2 and FIG. 9 can be applied as it is, so a detailed description thereof will be omitted.

Subsequently, the cooled polluted air may be introduced into the filter portion to adsorb the volatile organic compounds contained in the polluted air. The filter unit can adsorb the volatile organic compounds contained in the polluted air. The filter portion may be substantially the same as the filter portion described in the apparatus for removing volatile organic compounds according to some embodiments of the present invention. Therefore, a detailed description thereof will be omitted.

According to another embodiment of the present invention, there is provided a method of removing a flammable organic compound, the method including the step of recovering liquefied polluted air generated according to a step of cooling the polluted air provided. By cooling the polluted air, at least a part of the polluted air can be liquefied. The recovery of the liquefied polluted air can be performed by the drain device DR. The drain device DR may be substantially the same as the drain device DR of the apparatus for removing volatile organic compounds according to some embodiments of the present invention. Therefore, the description of FIG. 6 can be applied as it is.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive.

OV: Pollution air supply
RE: Cooling section
FI: Filter section
OV1: Oven
CH: chamber
EX1: Heat Exchanger
L1: first channel
L2: the second channel
FANi: Inflow fan
FANo: exhaust fan
FI1: first filter
DR: drain device
DR_1: First drain plate
DR_2: second drain plate
S: Level sensor
V: Check valve
100: Recovery tank
C: Cooling coil

Claims (20)

A polluted air supply unit for supplying polluted air containing a volatile organic compound;
A cooling unit into which the contaminated air flows and cool the polluted air; And
And a filter unit into which the contaminated air having passed through the cooling unit flows and adsorbs the volatile organic compounds contained in the polluted air. The method according to claim 1,
Wherein the cooling unit includes a heat exchanger for exchanging heat between the outside air and the polluted air. The method according to claim 1,
Wherein the cooling unit includes a cooling coil for cooling the contaminated air. The method according to claim 1,
Further comprising a drain device that liquefies at least a part of the contaminated air by the cooling section and processes the liquefied polluted air. The method according to claim 1,
The filter unit may include at least one filter, and the filter may include at least one selected from the group consisting of a filter using a chemical adsorbent, a filter using a physical adsorbent, a filter made of a porous material, and a filter using a catalyst, Device. An oven for providing polluted air comprising volatile organic compounds;
A cooling unit into which the contaminated air flows and cool the polluted air;
A first filter through which the contaminated air having passed through the cooling unit flows and adsorbs volatile organic compounds contained in the polluted air;
A first conduit connected to the oven for transferring the contaminated air provided from the oven and connected to the outside air through the cooling unit and the first filter; And
And a second conduit connected to the outside air and transmitting external air to the cooling unit. The method according to claim 6,
Wherein the cooling unit includes a heat exchanger for exchanging heat between the outside air and the polluted air. 8. The method of claim 7,
Wherein the first channel and the second channel are in direct contact with each other in the heat exchanger. 9. The method of claim 8,
Wherein the first conduit and the second conduit are twisted with each other or have at least one bent portion. The method according to claim 6,
Wherein one end of the second conduit is connected to the outside air and the other end of the second conduit is connected to the oven. The method according to claim 6,
Wherein the first filter comprises any one selected from the group consisting of a filter using a chemical adsorbent, a filter using a physical adsorbent, a filter made of a porous material, and a filter using a catalyst. The method according to claim 6,
Further comprising a drain device that liquefies at least a part of the contaminated air by the cooling section and processes the liquefied polluted air. 13. The method of claim 12,
Further comprising a third pipe connecting the recovery tank connected to the drain device and the heat exchanger, the drain device, and the recovery tank,
Wherein one end of the third conduit is connected to the heat exchanger and the other end of the third conduit is connected to the first conduit. The method according to claim 6,
Wherein the cooling section includes at least one cooling coil. 15. The method of claim 14,
Further comprising a second filter adjacent to the first filter,
Wherein the cooling coil includes a first cooling coil and a second cooling coil,
Wherein the first cooling coil, the first filter, the second filter, and the second cooling coil are sequentially disposed along the first channel. The method according to claim 6,
Wherein the cooling section includes a heat exchanger and a cooling coil, and the heat exchanger and the cooling coil are disposed along the first conduit. The method according to claim 6,
Further comprising a front-end filter disposed along the first conduit and disposed between the oven and the cooling section. Providing polluted air comprising volatile organic compounds;
Cooling the provided contaminated air; And
And introducing the cooled polluted air into the filter portion to adsorb the volatile organic compounds contained in the polluted air. 19. The method of claim 18,
Wherein the step of cooling the polluted air includes the step of heat-exchanging the polluted air with the external air using a heat exchanger. 19. The method of claim 18,
Further comprising the step of cooling at least a part of the polluted air by cooling the polluted air and processing and storing the liquefied polluted air.

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