TW201733660A - Apparatus for filtering volatile organic compounds and method for filtering volatile organic compounds capable of adsorbing volatile organic compounds in polluted air, and comprising a polluted air supply unit, a cooling unit, and a filtering unit - Google Patents

Abstract

Provided are an apparatus for filtering volatile organic compounds and a method for filtering volatile organic compounds. The apparatus for filtering volatile organic compounds according to one embodiment of the present invention comprises: a polluted air supply unit for supplying the polluted air containing volatile organic compounds; a cooling unit for allowing the foregoing polluted air to flow there into and cooling the foregoing polluted air; and a filtering unit for allowing the polluted air passing through the aforesaid cooling unit to flow there into and adsorbing the said volatile organic compounds in the foregoing polluted air.

Description

Volatile organic compound removal device and volatile organic compound removal method

The present invention relates to a volatile organic compound removal device and a volatile organic compound removal method.

Volatile Organic Compound (VOC) is a general term for organic compounds in the liquid or gas phase which are easily evaporated into the atmosphere due to high vapor pressure. Volatile organic compounds act as carcinogens that are adversely affected by inhalation of exhaled organs, which may cause leukemia, central nervous system disorders, chromosomal abnormalities, and the like to the human body. In addition, volatile organic compounds may cause environmental problems such as ozone layer destruction, global warming, and photochemical smog caused by photochemical oxides generated by a chain reaction of photochemical oxides. Moreover, since most volatile organic compounds contain irritating and unpleasant odors, they may cause great harm to the living environment when they are discharged into the atmosphere. Most of the volatile organic compounds are artificially produced by human industrial activities, and their causes are diverse, such as petrochemical plants, painting plants, and motor vehicle exhaust. The harmful effects of such volatile organic compounds are more serious in densely populated metropolitan areas, and the reality is that research and efforts are being made in various fields to reduce this hazard.

The problem to be solved by the present invention is to provide a volatile organic compound removing device capable of removing volatile organic compounds generated in a process.

Another problem to be solved by the present invention is to provide a volatile organic compound removing device that prevents heat pollution to the atmosphere due to heat of contaminated air at a high temperature.

The problem of the present invention is not limited to the technical problems mentioned above, and those skilled in the art can clearly understand other technical problems not mentioned by the following description.

A volatile organic compound removing apparatus according to an embodiment of the present invention includes: a contaminated air supply unit that supplies polluted air containing a volatile organic compound; a cooling unit that causes the polluted air to flow in and cools the polluted air; and a filter unit The polluted air passing through the cooling portion flows in and adsorbs the volatile organic compound contained in the polluted air.

Further, the cooling portion may further include a heat exchanger that exchanges heat between the outside air and the polluted air.

Further, the cooling portion may include a cooling coil that cools the polluted air.

Further, at least a part of the polluted air may be liquefied by the cooling portion, and the volatile organic compound removing device may further include a discharge device for treating the liquefied gas.

Furthermore, the above filter portion may include at least one filter, and the filter may include a filter selected from a chemical adsorbent, a filter applying a physical adsorbent, and more One or more filters in the group consisting of a filter composed of a porous substance and a filter using a catalyst.

A volatile organic compound removing apparatus according to another embodiment of the present invention includes: a furnace that supplies polluted air containing a volatile organic compound; a cooling portion that causes the polluted air to flow in and cools the polluted air; and the first filter passes through The polluted air of the cooling portion flows into and adsorbs a volatile organic compound contained in the polluted air; a first duct is connected to the furnace to transport the polluted air supplied from the furnace and passes through the cooling portion and the first filter The device is connected to the outside air; and the second pipe is connected to the external air and transmits the outside air to the cooling unit.

Further, the cooling unit may include a heat exchanger that exchanges heat between the outside air and the polluted air.

Further, the first pipe and the second pipe may be in direct contact with each other in the heat exchanger.

Further, the above-described first duct may be wound with each other with the above-described second duct, or may extend in a state of being adjacent to each other with at least one bent portion.

Further, one end of the second pipe may be connected to the outside air, and the other end of the second pipe may be connected to the furnace.

Further, the above first filter may include one selected from the group consisting of a filter applying a chemical adsorbent, a filter applying a physical adsorbent, a filter composed of a porous substance, and a filter applying a catalyst.

In addition, at least a part of the polluted air may be the above-mentioned cooling liquid And the above-described volatile organic compound removing device may further include a discharge device for treating the liquefied above-mentioned polluted air.

Further, the volatile organic compound removing device may further include a recovery tank connected to the discharge device and a third pipe connecting the heat exchanger, the discharge device, and the recovery tank, and one end of the third pipe may be connected to the above a heat exchanger, and the other end of the third pipe is connectable to the first pipe.

Further, the above cooling portion may include at least one cooling coil.

Furthermore, the above volatile organic compound removing device may further include a second filter adjacent to the first filter, and the cooling coil may include a first cooling coil and a second cooling coil, wherein the first cooling The coil, the first filter, the second filter, and the second cooling coil may be sequentially disposed along the first conduit.

Further, the above-described cooling portion may include a heat exchanger and a cooling coil, and the above-described heat exchanger and the above-described cooling coil may be disposed along the above-described first duct.

Further, the above volatile organic compound removing device may further include a front end filter disposed along the first pipe and disposed between the furnace and the cooling portion.

The volatile organic compound removal method according to an embodiment of the present invention may include the steps of: providing contaminated air containing a volatile organic compound; cooling the supplied contaminated air provided; and flowing the cooled contaminated air into the filter portion and The volatile organic compounds contained in the above polluted air are adsorbed.

In addition, the step of cooling the provided contaminated air provided may include A step of heat exchange of outside air with the above-mentioned contaminated air by a heat exchanger.

Further, at least a portion of the polluted air is liquefied by cooling the polluted air, and the method may further include the step of treating and storing the liquefied polluted air.

According to an embodiment of the present invention, volatile organic compounds can be adsorbed and removed from contaminated air containing volatile organic compounds.

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

Effects according to embodiments of the present invention are not limited to those exemplified above, and more diverse effects are included in the present specification.

OV‧‧‧Contaminated Air Supply Department

RE‧‧‧Cooling Department

FI‧‧‧Filter Department

OV1‧‧‧ furnace

CH1, CH2‧‧‧ chamber

EX1‧‧‧ heat exchanger

L1‧‧‧ first pipeline

L2‧‧‧Second Pipeline

Fan i‧‧‧Inflow fan

Fan o 1, Fan o 2‧‧‧Exhaust fan

FI1‧‧‧ first filter

FI2‧‧‧Second filter

sFI‧‧‧ front end filter

DR‧‧‧Draining device

DR_1‧‧‧First discharge board

DR_2‧‧‧second discharge plate

S1, S2‧‧‧ water level adjustment sensor

V‧‧‧ check valve

100‧‧‧Recycling tank

C1, C2‧‧‧ cooling coil

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

2 is a process flow diagram of a volatile organic compound removal apparatus according to an embodiment of the present invention.

Fig. 3 is a partially enlarged view of a heat exchanger of a volatile organic compound removing apparatus according to an embodiment of the present invention.

Fig. 4 is a partially enlarged view of a heat exchanger of the volatile organic compound removing device according to a modification of Fig. 3.

Figure 5 is a volatile organic compound removal device according to another embodiment of the present invention. Process flow chart.

Figure 6 is a process flow diagram of a volatile organic compound removal apparatus in accordance with another embodiment of the present invention.

Figure 7 is a process flow diagram of a volatile organic compound removal apparatus in accordance with another embodiment of the present invention.

Figure 8 is a process flow diagram of a volatile organic compound removal apparatus in accordance with another embodiment of the present invention.

Figure 9 is a process flow diagram of a volatile organic compound removal apparatus in accordance with another embodiment of the present invention.

Figure 10 is a process flow diagram of a volatile organic compound removal apparatus in accordance with another embodiment of the present invention.

Figure 11 is a process flow diagram of a volatile organic compound removal apparatus in accordance with another embodiment of the present invention.

The advantages and features of the present invention, as well as the methods for achieving the advantages and features, will become apparent from the Detailed Description of the Detailed Description. However, the present invention is not limited to the embodiments disclosed hereinafter, but can be implemented in various forms different from each other. These embodiments are provided solely to clarify the disclosure of the present invention and to provide a complete disclosure of the scope of the invention to those skilled in the art to which the invention pertains, and the invention is defined only by the scope of the claims.

It should be clarified that although the first, second, etc. are used to describe various components, These elements are not restricted by these terms. These terms are only used to distinguish one component from another. Therefore, it should be understood that the first constituent elements mentioned hereinafter may also be referred to as second constituent elements without departing from the technical idea of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Although the display device according to the present invention has been described as an example of the liquid crystal display device in the present specification, it is not limited thereto, and it is also applicable to the case of the organic light-emitting display device.

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

Referring to Fig. 1, a volatile organic compound removing apparatus according to an embodiment of the present invention includes a contaminated air supply portion OV that supplies contaminated air containing a volatile organic compound, a cooling portion RE that injects polluted air into and cools the polluted air, and The filtered portion FI of the volatile organic compound contained in the contaminated air is caused to flow into the contaminated air passing through the cooling portion RE.

The polluted air supply unit OV can generate contaminated air containing a volatile organic compound (VOC). In the present specification, a volatile organic compound (VOC) can be understood as a general term for an organic compound in a liquid phase or a gas phase which is easily evaporated due to a high vapor pressure. For example, a volatile organic compound (VOC) may include a solvent selected from the group consisting of benzene (Benzene, C ₆ H ₆ ), formaldehyde (HCHO), toluene (C ₇ H ₈ ), xylene (Xylene, C). Any one or more of the group consisting of ₆ H ₄ (CH ₃ )), ethylene (Ethylene, CH ₂ =CH ₂ ), styrene (Styrene, C ₈ H ₈ ), and acetaldehyde (Acetaldehyde, CH ₃ CHO) . In addition, a volatile organic compound (VOC) may include a malodor-inducing substance that causes malodor in the atmosphere.

The polluted air supply unit OV can discharge high temperature polluted air. In an exemplary embodiment, the temperature of the polluted air may be in the range of 100 ° C to 600 ° C. However, the temperature of the polluted air is not limited thereto, and in the present specification, "high-temperature polluted air" refers to a general term for a gas having a temperature higher than normal temperature which may be generated by including a heating process in a specific process.

The polluted air supply portion OV may include a furnace having a heating function. In the present specification, a furnace refers to a device including all means for heating the temperature of an object body, and is not limited to its specific heating method.

The polluted air supplied from the contaminated air supply unit OV can flow into the cooling portion RE. The cooling portion RE functions to lower the temperature of the polluted air. Illustratively, the cooling portion RE can reduce the temperature of the polluted air to below 40 °C. During this process, a portion of the polluted air can be condensed and liquefied. The volatile organic compound removing device according to an embodiment of the present invention may further include a discharge device for treating the above-mentioned contaminated air that is liquefied. This will be described in detail below.

The cooling portion RE serves as means for reducing the temperature of the polluted air flowing in from the polluted air supply portion OV, and may include a heat exchanger. The heat exchanger may be an air-cooled heat exchanger that cools contaminated air with outside air. In more detail, the heat exchanger can initiate a heat balance state by exchanging heat between the outside air and the polluted air, thereby reducing the temperature of the polluted air. In other words, the inside of the heat exchanger may be provided with a pipe that allows polluted air to flow in and a pipe that allows the outside air to flow in, and at this time, both of them may be caused by bringing a pipe that injects the polluted air into contact with a pipe that causes the outside air to flow in. Heat exchange. In this case, two The air does not mix and the heat balance can be induced by heat conduction through the pipe. That is, the temperature of the polluted air can be relatively lowered by the outside air, and the temperature of the outside air can relatively rise by the temperature of the polluted air.

In the heat exchanger, the cooled polluted air can flow into the filter portion FI which will be explained later. The outside air heated in the heat exchanger may be re-discharged to the outside or may be flowed into the polluted air supply portion for reuse. This will be described in detail below.

In another exemplary embodiment, the cooling portion RE may include a cooling coil to reduce the temperature of the polluted air flowing in from the polluted air supply portion OV. The polluted air can be cooled as it passes through the cooling coil. Specifically, a refrigerant such as Freon is transported through a cooling coil, and high-temperature contaminated air is gradually cooled as it passes through the cooling coil. Some or all of them may be condensed, and may also include a discharge device to treat the liquefied contaminated air. The discharge device will be described in detail below.

In some embodiments of the invention, the cooling portion RE may include more than one heat exchanger and/or more than one cooling coil. That is, the cooling portion RE may be configured to include one or more heat exchangers, or may be configured to include one or more cooling coils. Further, the cooling portion RE may simultaneously include more than one heat exchanger and one or more cooling coils.

The polluted air passing through the cooling portion RE can flow into the filter portion FI along the pipe.

The filter unit FI purifies the polluted air. To this end, the filter portion FI can filter volatile organic compounds (VOCs) contained in the polluted air and/or malodor-inducing substances that cause malodor. The filter portion FI may include a filter that adsorbs volatile organic compounds (VOCs) and/or malodorous substances that cause malodor to filter volatile organic compounds (VOCs) and/or cause evil. Stinky stench causes substances.

The filter portion FI may have one or more filters. The filter may include a physical adsorbent or a chemical adsorbent depending on the kind of volatile organic compound (VOC) or malodor-inducing substance. Physical adsorbents or chemical adsorbents can be selectively applied or applied together. In other words, the filter may include any one or more adsorbents selected from the group consisting of a physical adsorbent and a chemical adsorbent.

The above-mentioned physical adsorbent or chemical adsorbent may be configured to contain moisture. When the physical adsorbent or the chemical adsorbent is configured to contain moisture, the removal of the water-soluble volatile organic compound (VOC) can be facilitated.

The filter applied in the filter portion FI may include a porous substance to trap volatile organic compounds (VOC) and/or malodor-inducing substances that cause malodor. Illustratively, the filter may be configured to include any one or more selected from the group consisting of a polymer, a zeolite, an activated carbon, a metal oxide, and a ceramic. In the case where the filter is configured to include a porous substance as described above, a volatile organic compound (VOC) contained in the polluted air and/or a malodor-inducing substance that causes malodor can be trapped in the filter in a molecular form. On porous materials.

The filter may include a catalyst that assists in the capture of volatile organic compounds (VOCs) and/or malodorous odor-inducing substances to enhance the filtration performance of the filter. Illustratively, the catalyst can be a platinum-based oxidation catalyst. The platinum-based oxidation catalyst is a low-temperature oxidation catalyst which is composed of alumina (Al ₂ O ₃ ) and platinum (Pt). This catalyst can be used in the temperature range of 200 ° C to 300 ° C. As another example, the catalyst may be a nickel/cobalt oxidation catalyst. The nickel/cobalt-based oxidation catalyst is a high-temperature oxidation catalyst composed of a material of mixed alumina (Al ₂ O ₃ ) and nickel/cobalt. This catalyst can be used in a temperature range of 300 ° C or higher.

The filter unit FI may use the above-described various types of filters alone or a combination of the above-described plurality of filters. That is, the filter portion FI may be configured to include a plurality of filters that perform different functions from each other. That is, the filter portion FI may include one or more filters selected from the group consisting of a filter to which a chemical adsorbent is applied, a filter to which a physical adsorbent is applied, a filter composed of a porous substance, and a filter to which a catalyst is applied. That is, the filter portion FI may include a combination of filters having functions different from each other.

The plurality of types of filters included in the filter portion FI may have temperature suitability. In other words, the filter can perform enhanced filtration performance at a specific temperature. That is, the polluted air is not directly transmitted to the filter portion FI as described above, but is transmitted via the cooling portion RE, so that the purification ability of the filter portion FI can be improved.

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

2 is a process flow diagram of a volatile organic compound removal apparatus according to an embodiment of the present invention.

Referring to Fig. 2, a volatile organic compound removing apparatus according to an embodiment of the present invention includes a furnace OV1 for supplying polluted air containing a volatile organic compound, a heat exchanger EX1 for causing polluted air to flow in and cooling the polluted air, and heat passing through The contaminated air of the exchanger EX1 flows into and adsorbs the first filter FI1 of the volatile organic compound contained in the polluted air, is connected to the furnace OV1 and transports the polluted air supplied from the furnace OV1 and passes through the heat exchanger EX1 and the first filter The FI1 is connected to the first pipe L1 of the outside air and the second pipe L2 connected to the outside air and transmitting the outside air to the heat exchanger EX1.

Furnace OV1 can be produced containing volatile organic compounds (VOC, Volatile Oxide) Compound) polluted air.

Furnace OV1 can discharge high temperature polluted air. In an exemplary embodiment, the temperature of the polluted air may be 100 ° C to 600 ° C. However, the temperature of the polluted air is not limited thereto, and in the present specification, the high-temperature polluted air can be understood as a general term for a gas having a temperature higher than normal temperature which may be generated by including a heating process in a specific process.

Furnace OV1 may include means for warming the object body, and its specific manner is not limited. Illustratively, the furnace OV1 may be a furnace used in a baking process of a liquid crystal display device. In this case, the temperature of the polluted air may be 150 ° C to 230 ° C. However, this is merely exemplary and the scope of the invention is not limited by the above process and temperature.

The polluted air generated in the furnace OV1 can flow into the heat exchanger EX1 via the first pipe L1 which will be explained later. The heat exchanger EX1 may be disposed inside the sealed first chamber CH1. The first chamber CH1 can provide a space that is isolated from the outside air. Since the first chamber CH1 provides a space isolated from the outside air as described above, it is possible to prevent an inflow of unexpected outside air and external air pollution due to the outflow of the polluted air.

The heat exchanger EX1 can reduce the temperature of the polluted air flowing in from the furnace OV1. That is, the heat exchanger EX1 may be an air-cooled heat exchanger that reduces the temperature of the polluted air by the outside air. Specifically, the heat exchanger EX1 can initiate a heat balance state by exchanging heat between the outside air and the polluted air, thereby reducing the temperature of the polluted air. In other words, ambient temperature outside air can flow into the heat exchanger EX1 via the second line L2 which will be explained later. The first pipe L1 that moves the polluted air and the second pipe L2 that moves the outside air may physically contact inside the heat exchanger EX1. First pipe L1 and second pipe The heat exchange of L2 can occur through physical contact between the two. That is, the heat balance of the first pipe L1 and the second pipe L2 can be initiated by heat conduction according to the contact of the first pipe L1 and the second pipe L2. That is, since the first pipe L1 and the second pipe L2 are in contact, the temperature of the first pipe L1 having a relatively high temperature may decrease, and the temperature of the second pipe L2 having a relatively low temperature may rise. Thereby, the temperature of the polluted air passing through the first duct L1 can be lowered, and the temperature of the outside air passing through the second duct L2 can be raised. That is, by adopting this manner, heat exchange can be performed without contaminating the air and the outside air.

The manner in which the first pipe L1 and the second pipe L2 are in contact with each other in the heat exchanger EX1 will be described with reference to Figs. 3 and 4 .

Fig. 3 is a partially enlarged view of a heat exchanger of a volatile organic compound removing apparatus according to an embodiment of the present invention.

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

As described above, the first duct L1 and the second duct L2 can perform heat exchange by conduction. Thereby, the larger the contact area of the first pipe L1 and the second pipe L2, the easier the heat exchange can be performed. In order to increase the contact area of the first pipe L1 and the second pipe L2, the first pipe L1 and the second pipe L2 may be coupled to each other with a predetermined length. In other words, it can be twisted with each other.

Fig. 4 is a partially enlarged view of a heat exchanger of the volatile organic compound removing device according to a modification of Fig. 3.

Referring to Fig. 4, the first duct L1 and the second duct L2 may extend in a state of being adjacent to each other with one or more bent portions. As mentioned above, various methods can be used To increase the contact area of the first pipe L1 and the second pipe L2. Illustratively, the first conduit L1 and the second conduit L2 may extend in a manner having more than one bend. In other words, the first duct L1 and the second duct L2 are adjacent to each other by a predetermined length, wherein the adjacent portion may at least partially include the bent portion. That is, the first duct L1 and the second duct L2 may be adjacent to each other in a form in which they are pleated.

Other structures of the volatile organic compound removing apparatus according to an embodiment of the present invention will be described with reference to Fig. 2 again.

The polluted air passing through the heat exchanger EX1 can flow into the first filter FI1 via the first pipe L1. The first filter FI1 may be disposed within the closed second chamber CH2. The second chamber CH2 can provide a space that is isolated from the outside air. Since the second chamber CH2 provides a space isolated from the outside air as described above, it is possible to prevent an inflow of unexpected outside air and air pollution due to the outflow of the polluted air.

The second chamber CH2 may be in communication with the first chamber CH1. That is, the first chamber CH1 and the second chamber CH2 can share a sealed space. However, it is not limited thereto, and the second chamber CH2 and the first chamber CH1 may independently provide a space isolated from the outside.

The first filter FI1 can perform the function of purifying the inflowing polluted air. To this end, the first filter FI1 may include a physical adsorbent or a chemical adsorbent depending on the kind of volatile organic compound (VOC) or malodor-inducing substance. Physical adsorbents or chemical adsorbents can be selectively applied or applied together. In other words, the first filter FI1 may include any one or more adsorbents selected from the group consisting of a physical adsorbent and a chemical adsorbent.

The above physical adsorbent or chemical adsorbent may be configured to contain moisture. In the case where the physical adsorbent or the chemical adsorbent is composed to contain moisture, water solubility can be made Removal of volatile organic compounds (VOCs) becomes easy.

The first filter FI1 may include a porous substance to trap a volatile organic compound (VOC) and/or a malodor-inducing substance that causes malodor.

Illustratively, the first filter FI1 may be configured to include any one or more selected from the group consisting of a polymer, a zeolite, an activated carbon, a metal oxide, and a ceramic. In the case where the filter is configured to include a porous substance as described above, the volatile organic compound (VOC) contained in the polluted air and/or the malodor-inducing substance which causes malodor can be trapped in the molecular form in the first filtration. On the porous material included in FI1.

The first filter FI1 may include a catalyst that assists in trapping volatile organic compounds (VOCs) and/or malodor-inducing malodor-inducing substances to enhance the filtration performance of the first filter FI1. Illustratively, the catalyst can be a platinum-based oxidation catalyst. The platinum-based oxidation catalyst is a low-temperature oxidation catalyst which is composed of alumina (Al ₂ O ₃ ) and platinum (Pt). This catalyst can be used in the temperature range of 200 ° C to 300 ° C. As another example, the catalyst may be a nickel/cobalt oxidation catalyst. The nickel/cobalt-based oxidation catalyst is a high-temperature oxidation catalyst composed of a material in which aluminum oxide (Al ₂ O ₃ ) and nickel/cobalt are mixed. This catalyst can be used in a temperature range of 300 ° C or higher.

That is, the first filter FI1 may be one selected from the group consisting of a filter to which a chemical adsorbent is applied, a filter to which a physical adsorbent is applied, a filter composed of a porous substance, and a filter to which a catalyst is applied.

The volatile organic compound removing device according to an embodiment of the present invention may include a first pipe L1 and a second pipe L2.

One end of the first pipe L1 can be connected to the furnace OV1, and can be transported by the furnace OV1 Generated polluted air. That is, the first duct L1 provides a passage for moving the polluted air. The first pipe L1 is connected to the heat exchanger EX1, and the polluted air generated by the furnace OV1 can be transmitted to the heat exchanger EX1. Since the arrangement of the first duct L1 inside the heat exchanger EX1 is the same as that set forth above, a detailed description thereof will be omitted. Next, the first pipe L1 can transfer the polluted air cooled in the heat exchanger EX1 to the first filter FI1. That is, the first pipe L1 may be connected to the first filter FI1. The air filtered by the first filter FI1 can be discharged to the outside via the first pipe L1. In order to smooth the discharge of the polluted air, the other end of the first duct L1 may be arranged with a first exhaust fan Fan o 1. The first exhaust fan Fan o 1 can discharge the polluted air purified through the first filter FI1 to the outside.

That is, one end of the first pipe L1 may be connected to the furnace OV1, and the other end of the first pipe L1 may be connected to the first exhaust fan Fan0. In other words, the first pipe L1 may be connected to the furnace OV1 and may be in communication with the outside via the heat exchanger EX1 and the first filter FI1 and the first exhaust fan Fan0.

Any one of the one end and the other end of the second pipe L2 may be in communication with the outside air. To this end, one end of the second duct L2 may be arranged with an inflow fan Fan i. The inflow fan Fan i functions to allow outside air to flow into the second duct L2. As described above, the outside air flowing in through the second duct L2 can flow into the heat exchanger EX1. The outside air that has undergone heat exchange with the polluted air moving in the first pipe L1 through the heat exchanger EX1 can be discharged to the outside air via the second pipe L2. The other end of the second duct L2 may be arranged with a second exhaust fan Fan o 2 to facilitate the discharge of the outer duct of the second duct L2. That is, one end of the second pipe L2 may be connected to the outside air through the inflow fan Fan i, and the other end of the second pipe L2 may be connected to the outside air through the second exhaust fan Fan o 2 . In other words, the outside air It may be discharged to the outside via the inflow fan Fan i disposed at one end of the second duct L2 and passing through the heat exchanger EX1 via the second exhaust fan Fan 2 disposed at the other end of the second duct L2.

The volatile pollutants and/or the malodor-inducing substances which are cooled by the heat exchanger EX1 to the polluted air close to the normal temperature are filtered by the first filter FI1, and thus the air discharged to the outside may be clean air which is close to normal temperature. Thereby, it is possible to prevent contamination of the outside air caused by the discharge of hot air having a high temperature and contamination of the outside air caused by the discharge of the air containing the volatile organic compound and/or the malodor-inducing substance.

Hereinafter, a volatile organic compound removing device according to another embodiment of the present invention will be described. In the following embodiments, the same reference numerals will be given to the same structures as those already explained, and the repeated description will be omitted or simplified.

Figure 5 is a process flow diagram of a volatile organic compound removal apparatus in accordance with another embodiment of the present invention.

Referring to Fig. 5, the difference from the embodiment of Fig. 2 is that, in the volatile organic compound removing apparatus according to another embodiment of the present invention, the other end of the second duct L2 is connected to the furnace OV1.

The other end of the second pipe L2 may be connected to the furnace OV1. When the heat exchange is configured as described above in the heat exchanger EX1, the temperature of the polluted air passing through the first duct L1 may decrease, and the temperature of the outside air passing through the second duct L2 may rise. When the other end of the second pipe L2 is connected to the furnace OV1, the outside air heated by the heat exchanger EX1 can be reused in the furnace OV1. Thereby, it is possible to prevent the heat pollution problem which may occur due to the discharge of the high-temperature air to the outside, and it is possible to save the need in the process by recycling the waste heat. energy of.

Figure 6 is a process flow diagram of a volatile organic compound removal apparatus in accordance with another embodiment of the present invention. Referring to Fig. 6, a volatile organic compound removing apparatus according to another embodiment of the present invention may further include a discharge device DR.

As described above, part or all of the polluted air moving in the first duct L1 can be condensed and liquefied by the heat exchanger EX1. In this case, the liquefied contaminated air can be stored in the recovery tank 100 through the discharge device DR. To this end, the volatile organic compound removing device according to another embodiment of the present invention may further include a third pipe L3 connected to the heat exchanger EX1 and transmitting the liquefied contaminated air to the discharge device DR.

The discharge device DR may include a first discharge plate DR_1 and a second discharge plate DR_2. The polluted air condensed by cooling in the heat exchanger EX1 can be transmitted to the discharge device DR via the third pipe L3. In this process, the liquefied contaminated air can be stored in the first discharge plate DR_1. The liquefied contaminated air stored in the first discharge plate DR_1 can be moved to the second discharge plate DR_2 via the third pipe L3. Although not shown in the drawings, the first water level adjusting sensor S1 that measures the water level of the liquefied contaminated air stored in the second discharge plate DR_2 may be disposed in the second discharge plate DR_2. The first water level adjusting sensor S1 disposed in the second discharge plate DR_2 may sense the water level of the liquefied contaminated air when the second discharge plate DR_2 stores the liquefied polluted air above a certain water level. The liquefied contaminated air stored in the second discharge plate DR_2 may continue to be stored into the recovery tank 100 via the third pipe L3. A second water level adjusting sensor S2 that senses the water level of the liquefied contaminated air stored in the recovery tank 100 may be disposed in the recovery tank 100. The second water level adjusting sensor S2 can monitor the amount of liquefied polluted air stored in the recovery tank 100, and when storing liquefied polluted air above a certain water level, The user is informed to guide the replacement of the recovery tank 100.

When the liquefied contaminated air is stored in the recovery tank 100, a portion of the liquefied contaminated air can be vaporized again into a volatile organic compound. In this case, the vaporized volatile organic compound can be moved via the third pipe L3 to re-inflow into the first pipe L1 before flowing into the heat exchanger EX1. That is, one end of the third pipe L3 may be connected to the heat exchanger EX1, and the other end of the third pipe L3 may be connected to the first pipe L1 before flowing into the heat exchanger EX1. Further, a check valve V may be disposed on the third pipe L3 to prevent the vaporized volatile organic compound from flowing back again. Specifically, the check valve V may be disposed between the recovery tank 100 and the first pipe L1 in the third pipe L3.

Figure 7 is a process flow diagram of a volatile organic compound removal apparatus in accordance with another embodiment of the present invention.

Referring to Fig. 7, the difference from the embodiment of Fig. 2 is that, in the volatile organic compound removing apparatus according to another embodiment of the present invention, the front end filter sFI is disposed on the first pipe L1.

A front end filter sFI may be disposed on the first pipe L1. Specifically, the front end filter sFI may be disposed between the furnace OV1 and the heat exchanger EX1. The front end filter sFI can perform the function of filtering the contaminated air in advance before the polluted air passing through the first pipe L1 flows into the heat exchanger EX1.

The front end filter sFI may include a demister filter and/or a carbon filter. In the case where the volatile organic compound removing device according to another embodiment of the present invention includes the front end filter sFI, since the fine harmful particles or the malodor-inducing substance passing through the contaminated air of the first pipe L1 are filtered in advance, it is possible to slow down The burden of the first filter FI1 is solved, and the filtration performance of the entire volatile organic compound removing device can be improved.

Figure 8 is a process flow diagram of a volatile organic compound removal apparatus in accordance with another embodiment of the present invention.

The difference between the embodiment of Fig. 8 and Fig. 2 is that the cooling portion RE includes the first cooling coil C1 and does not include the heat exchanger EX1.

The polluted air passing through the first duct L1 can flow into the first cooling coil C1. The first cooling coil C1 receives cold air by a Freon gas or the like, and thereby can lower the temperature of the gas passing through the first cooling coil C1. That is, the polluted air flows into the first filter FI1 via the first duct L1 in a state of being cooled by the first cooling coil C1. The polluted air passing through the first cooling coil C1 and the first filter FI1 may be discharged to the outside again via the first duct L1, and for this, as described above, the first exhaust fan may be disposed at the other end of the first duct L1 Fan o 1. In the case where the contaminated air is cooled by the first cooling coil C1, the polluted air can be cooled faster than the heat exchanger EX1, and the polluted air can be cooled to a temperature lower than that in the case of cooling by the outside air.

Figure 9 is a process flow diagram of a volatile organic compound removal apparatus in accordance with another embodiment of the present invention. Referring to Fig. 9, the difference from the embodiment of Fig. 8 is that the volatile organic compound removing apparatus according to another embodiment of the present invention further includes a second cooling coil C2 and a second filter FI2.

The second cooling coil C2 may have substantially the same structure as the first cooling coil C1. In an 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 duct L1.

The second filter FI2 can perform the function of purifying the inflowing polluted air. To this end, the second filter FI2 may include a physical adsorbent or a chemical adsorbent depending on the kind of volatile organic compound (VOC) or malodor-inducing substance. Physical adsorbents or chemical adsorbents can be selectively applied or applied together. In other words, the second filter FI2 may include any one or more adsorbents selected from the group consisting of a physical adsorbent and a chemical adsorbent.

The above physical adsorbent or chemical adsorbent may be configured to contain moisture. When the physical adsorbent or the chemical adsorbent is configured to contain moisture, the removal of the water-soluble volatile organic compound (VOC) can be facilitated.

The second filter FI2 may include a porous substance to trap volatile organic compounds (VOCs) and/or malodor-inducing substances that cause malodors.

Illustratively, the second filter FI2 may be configured to include any one or more selected from the group consisting of a polymer, a zeolite, an activated carbon, a metal oxide, and a ceramic. In the case where the filter is configured to include a porous substance as described above, a volatile organic compound (VOC) contained in the polluted air and/or a malodor-inducing substance which causes malodor can be trapped in a molecular form in the second filtration. On the porous material included in FI2.

The second filter FI2 may include a catalyst that assists in trapping volatile organic compounds (VOCs) and/or malodorous substances that cause malodor to enhance the filtration performance of the second filter FI2. Illustratively, the catalyst can be a platinum-based oxidation catalyst. The platinum-based oxidation catalyst is a low-temperature oxidation catalyst which is composed of alumina (Al ₂ O ₃ ) and gold (Pt). This catalyst can be used in the temperature range of 200 ° C to 300 ° C. As another example, the catalyst may be a nickel/cobalt oxidation catalyst. The nickel/cobalt-based oxidation catalyst is a high-temperature oxidation catalyst composed of a material in which aluminum oxide (Al ₂ O ₃ ) and nickel/cobalt are mixed. This catalyst can be used in a temperature range of 300 ° C or higher.

That is, the second filter FI2 may be one selected from the group consisting of a filter to which a chemical adsorbent is applied, a filter to which a physical adsorbent is applied, a filter composed of a porous substance, and a filter to which a catalyst is applied.

The first filter FI1 and the second filter FI2 may be substantially the same filter or may be filters different from each other. That is, the first filter FI1 and the second filter FI2 may be the same filter, or may be selected from a filter applying a chemical adsorbent, a filter applying a physical adsorbent, a filter composed of a porous substance, and A combination of two filters in a group of catalyst filters applied.

In the case where the volatile organic compound removing device according to another embodiment of the present invention further includes the second filter FI2 as described above, the filtration performance of the filter portion FI can be further improved.

Further, in a case where the polluted air passing through the second filter FI2 passes through the second cooling coil C2 and is discharged to the outside, it is possible to more reliably prevent thermal pollution of the outside air due to the heat of the polluted air.

Figure 10 is a process flow diagram of a volatile organic compound removal apparatus in accordance with another embodiment of the present invention.

Referring to Fig. 10, the difference from the embodiment of Fig. 2 is that the volatile organic compound removing apparatus according to another embodiment of the present invention includes both the heat exchanger EX1 and the first cooling coil C1.

Volatile organic compound removal device according to some embodiments of the present invention Any one of the heat exchanger EX1 and the first cooling coil C1 may be included, but both may be included at the same time. In this case, the polluted air may sequentially pass through the heat exchanger EX1 and the first cooling coil C1 via the first pipe L1. By repeatedly applying the heat exchanger EX1 and the first cooling coil C1, the cooling performance of the cooling portion RE1 can be maximized, and thus the thermal pollution of the outside air which may occur due to the heat of the polluted air can be prevented in advance. .

Figure 11 is a process flow diagram of a volatile organic compound removal apparatus in accordance with another embodiment of the present invention.

Referring to Fig. 11, a difference from the embodiment of Fig. 10 is that the volatile organic compound removing apparatus according to another embodiment of the present invention further includes a second filter FI2 and a second cooling coil C2.

As described above, the volatile organic compound removal apparatus according to some embodiments of the present invention may include both the heat exchanger EX1 and the cooling coil.

The second cooling coil C2 may have substantially the same structure as the first cooling coil C1. In an 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 may be sequentially disposed along the first pipe L1.

In the case where the volatile organic compound removing device according to another embodiment of the present invention further includes the second filter FI2 as described above, the filtration performance of the filter portion FI can be further improved.

Further, in the case where the polluted air passing through the second filter FI2 passes through the second cooling coil C2 and is discharged to the outside, it is possible to surely prevent the contamination of the air. Heat causes thermal pollution of the outside air.

Hereinafter, a method of removing a volatile organic compound according to an embodiment of the present invention will be described. The volatile organic compound removing method according to an embodiment of the present invention may utilize the above-described volatile organic compound removing device according to some embodiments of the present invention, but is not limited thereto. A part of the structure explained hereinafter may be the same as that of the above-described volatile organic compound removing device according to some embodiments of the present invention, and therefore, in order to avoid redundancy, the description of the partial structure will be omitted.

A volatile organic compound removal method according to an embodiment of the present invention includes the steps of: providing contaminated air containing a volatile organic compound; cooling the supplied contaminated air; and flowing the cooled polluted air into the first filter and adsorbing Contains volatile organic compounds in polluted air.

First, a step of providing contaminated air containing volatile organic compounds can be performed. The volatile organic compound can be supplied by a contaminated air supply. Illustratively, the contaminated air supply may include a furnace, and high temperature contaminated air may be generated and provided in the furnace. The contaminated air supply and furnace may be substantially identical to the contaminated air supply and furnace described above in the volatile organic compound removal apparatus according to some embodiments of the present invention. Therefore, the descriptions in Figs. 1 and 2 can be directly used.

Next, a step of cooling the supplied contaminated air is performed. The step of cooling the supplied polluted air may include a step of cooling the polluted air by heat exchange with the outside air via the heat exchanger EX1, or a step of cooling the polluted air with the cooling coil. The heat exchanger EX1 and the cooling coil may be combined with the heat exchangers described above in the volatile organic compound removal apparatus according to some embodiments of the present invention. The EX1 and the cooling coil are substantially identical. Therefore, the description of FIGS. 2 and 9 can be directly adopted, and a detailed description thereof will be omitted.

Next, a step of flowing the cooled polluted air into the filter portion and adsorbing the volatile organic compound contained in the contaminated air may be performed. The filter unit adsorbs volatile organic compounds contained in the polluted air. The filter portion can be substantially the same as the filter portion illustrated in the volatile organic compound removal device according to some embodiments of the present invention. Therefore, a detailed description thereof will be omitted.

The volatile organic compound removal method according to another embodiment of the present invention may further include the step of recovering liquefied contaminated air generated by the step of cooling the supplied contaminated air. At least a portion of the polluted air can be liquefied by cooling the polluted air. The recovery of the liquefied contaminated air can be performed by the discharge device DR. The discharge device DR may be substantially identical to the discharge device DR of the volatile organic compound removal device according to some embodiments of the present invention. Therefore, the above description of Fig. 6 can be directly adopted.

While the embodiments of the present invention have been described above with reference to the drawings, those skilled in the art can understand that the present invention can be embodied in other specific forms without changing the technical spirit or essential features of the present invention. Therefore, the embodiments described above are to be considered in all respects as illustrative and not limiting.

OV1‧‧‧ furnace

CH1, CH2‧‧‧ chamber

EX1‧‧‧ heat exchanger

L1‧‧‧ first pipeline

L2‧‧‧Second Pipeline

Fan i‧‧‧Inflow fan

Fam o 1, Fan o 2‧‧‧Exhaust fan

FI1‧‧‧ first filter

Claims (20)

A volatile organic compound removing device comprising: a polluted air supply portion that provides polluted air containing volatile organic compounds; a cooling portion that causes the polluted air to flow in and cools the polluted air; and a filter portion that passes through the cooling portion The contaminated air of the portion flows in and adsorbs the volatile organic compound contained in the polluted air. The volatile organic compound removing device according to claim 1, wherein the cooling portion comprises: a heat exchanger that exchanges heat between the outside air and the polluted air. The volatile organic compound removing device according to claim 1, wherein the cooling portion comprises: a cooling coil that cools the polluted air. The volatile organic compound removing device according to claim 1, wherein at least a part of the polluted air is liquefied by the cooling portion, wherein the volatile organic compound removing device further comprises: a discharging device that processes the liquefied contamination air. The volatile organic compound removing device according to claim 1, wherein the filtering portion includes at least one filter including a filter selected from a chemical adsorbent, a filter applying a physical adsorbent, and a porous layer. One or more filters in the group consisting of a filter composed of a substance and a filter using a catalyst. A volatile organic compound removing device comprising: a furnace for supplying polluted air containing volatile organic compounds; a cooling portion for flowing the polluted air and cooling the polluted air; and a first filter for passing through the cooling portion The polluted air flows into and adsorbs the volatile organic compound contained in the polluted air; a first conduit is connected to the furnace to transport the polluted air supplied by the furnace and is connected to the first filter via the cooling portion To the outside air; and a second pipe connected to the outside air and transmitting the outside air to the cooling portion. The volatile organic compound removing device according to claim 6, wherein the cooling portion comprises: a heat exchanger that exchanges heat between the outside air and the polluted air. The volatile organic compound removal device of claim 7, wherein the first conduit and the second conduit are in direct contact within the heat exchanger. The volatile organic compound removing device according to claim 8, wherein the first duct may be wound with the second duct or may be extended in a state of being adjacent to each other with at least one bent portion. The volatile organic compound removing device according to claim 6, wherein one end of the second pipe is connected to the outside air, and the other end of the second pipe is connected to the furnace. The volatile organic compound removing device according to claim 6, wherein the first filter comprises a filter selected from the group consisting of a filter applying a chemical adsorbent, a filter applying a physical adsorbent, a filter composed of a porous substance, and an application. A filter in the group of catalyst filters. The volatile organic compound removing device according to claim 6, wherein at least a part of the polluted air is liquefied by the cooling portion, wherein the volatile organic compound removing device further comprises: a discharging device that processes the liquefied contamination air. The volatile organic compound removal device of claim 12, further comprising: a recovery tank connected to the discharge device; and a third conduit connecting the heat exchanger, the discharge device and the recovery tank, wherein one end of the third conduit is connected to the heat exchanger, and the third conduit The other end is connected to the first pipe. The volatile organic compound removal device of claim 6, wherein the cooling portion comprises at least one cooling coil. The volatile organic compound removal device 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 a coil, wherein the first cooling coil, the first filter, the second filter, and the second cooling coil are sequentially disposed along the first conduit. The volatile organic compound removal device of claim 6, wherein the cooling portion comprises a heat exchanger and a cooling coil, wherein the heat exchanger and the cooling coil are disposed along the first conduit. The volatile organic compound removing device according to claim 6, further comprising: a front end filter disposed along the first pipe and disposed between the furnace and the cooling portion. A method for removing a volatile organic compound, comprising the steps of: providing contaminated air containing a volatile organic compound; cooling the provided contaminated air; and flowing the cooled contaminated air into a filter and adsorbing the contaminated air The volatile organic compound. The volatile organic compound removal method according to claim 18, wherein the step of cooling the supplied contaminated air comprises the step of heat-exchange the outside air with the polluted air by means of a heat exchanger. The volatile organic compound removal method of claim 18, wherein at least a portion of the contaminated air is liquefied by cooling the contaminated air, wherein the volatile organic compound removal method further comprises: treating and storing the liquefied The step of polluting the air.