KR102109532B1 - Indoor ventilation system photoplasma - Google Patents

Abstract

An objective of the present invention is to provide an indoor ventilation system capable of treating organic compounds which are pollutants contained in the air. According to the present invention, provided is the indoor ventilation system including: an air purification unit having an air purification housing providing an air purification space inside, an air filter unit separating the air purification space into an inlet side space communicating with the outside and an outlet side space communicating with the indoor space, and a photoplasma generating device for generating photoplasma in the air purification space; an air supply fan for moving air from the inlet side space to the outlet side space in the air purification space; and an air discharge fan which discharges indoor air to the outside.

Description

Indoor ventilation system using optical plasma {INDOOR VENTILATION SYSTEM PHOTOPLASMA}

The present invention relates to an indoor ventilation system, and more particularly, to an indoor ventilation system using an optical plasma.

Generally, a ventilation system that circulates indoor and outdoor air to each other is applied to a building to maintain the cleanliness of the indoor air, and such a ventilation system is composed of an air supply system for introducing outdoor air into the room and an exhaust system for discharging indoor air to the outdoors. If the outdoor air flows directly into the room by operating the air supply system in the season when the temperature difference between indoor and outdoor is large, heat loss occurs while the outdoor air flowing into the room changes the indoor temperature, and energy used for heating and cooling to maintain the indoor temperature is wasted. Therefore, an air cleaning system is added to remove foreign substances such as dust contained in the indoor air through the filter while forcibly circulating the indoor air through the air supply fan.

As an exhaust system to which such an air cleaning system is added, in Korean Patent Registration No. 10-1080116, when the carbon dioxide concentration in indoor air is reduced, the indoor air discharged from the room to the outside through the operation of the exhaust circulation damper installed in the exhaust system is an air cleaning filter. It is equipped with an air cleaning mode that filters the foreign substances contained in the air by passing through it and supplies it to the air supply system to supply it back to the room, and supplies or blocks the outdoor air flowing in from the outside through the opening and closing of the body damper installed in the air supply system. An air cleaning system for regulating whether or not is proposed.

In addition, in Korean Patent No. 10-1080120, when the carbon dioxide concentration of indoor air increases, the supply air circulation damper installed in the air supply system is operated to remove or remove foreign substances through the ventilation filter to control whether indoor air is supplied or blocked. After re-supplying the indoor air to the air supply system through the operation of the circulating damper formed in the air supply system, the air is filtered through the air cleaning filter to redistribute it, thereby allowing the inflow of outdoor air, the outdoor exhaust of indoor air, and the air cleaning operation simultaneously or individually. An air cleaning system that can occur is proposed.

However, such a conventional air cleaning system has a problem that it cannot process organic compounds, which are pollutants contained in air, and thus needs improvement.

Republic of Korea Patent Registration No. 10-1808116 (2017.12.13.) Republic of Korea Registered Patent Publication No. 10-1808120 (2017.12.13)

An object of the present invention is to provide an indoor ventilation system capable of treating organic compounds that are pollutants contained in air.

In order to achieve the object of the present invention described above, according to an aspect of the present invention, an air purification housing providing an air purification space therein, and an inlet side space communicating the air purification space with the outdoors and an outlet communicating with the room An air purification unit having an air filter unit separating the side spaces and an optical plasma generating device for generating an optical plasma in the air purification space; An air supply fan for flowing air from the air purification space to the discharge side space; And an exhaust fan for discharging indoor air to the outdoors.

According to the present invention, it is possible to achieve all the objects of the present invention described above. Specifically, since an optical plasma lamp is installed in front or behind the air filter of the air purification unit to generate an optical plasma, the organic molecules contained in the air are destroyed by the optical plasma, thereby improving air quality and preventing contamination of the air filter. It can increase the life of the air filter.

1 is a block diagram showing the configuration of an indoor ventilation system using an optical plasma according to a first embodiment of the present invention.
2 to 6 are configuration diagrams showing various operating modes of the indoor ventilation system using the optical plasma shown in FIG. 1.
7 is a block diagram showing the configuration of an indoor ventilation system using an optical plasma according to a second embodiment of the present invention.
8 to 10 are configuration diagrams showing various operating modes of the indoor ventilation system using the optical plasma shown in FIG. 7.

Hereinafter, the configuration and operation of the embodiment of the present invention will be described in detail with reference to the drawings.

1 shows a configuration of an indoor ventilation system using an optical plasma according to a first embodiment of the present invention. Referring to FIG. 1, the indoor ventilation system 100 using an optical plasma according to the first embodiment of the present invention includes an air purification unit 110 for processing and discharging harmful substances contained in the introduced air, and air purification The heat exchange unit 160 connected to the air inlet side of the unit 110, the air supply unit piping unit 190 connected to the air outlet side of the air purification unit 110, the air purification unit 110 and the heat exchange unit ( It includes a control unit 199 for controlling the operation of (160).

The air purification unit 110 includes an air purification housing 120, a main air filter unit 130 installed in the air purification housing 120, an air supply fan 135 installed in the air purification housing 120, and air A main optical plasma generator 140 installed in the purification housing 120, an air quality sensor 150 installed in the control unit 199, and an air supply switching damper 155 installed in the air purification housing 120 are provided. . The air purification unit 110 is installed in a structure in a room to be ventilated, such as a ceiling in the living room.

The air purification housing 120 provides an inner space 121 in which the main air filter unit 130 and the air supply fan 135 are installed. The inner space 121 of the air purification housing 120 is an air purification space in which air is purified by the main air filter unit 130, and the inlet side space 122 and the outlet side space by the main air filter unit 130 ( 125). The air in the inner space 121 flows from the inlet-side space 122 through the main air filter unit 130 to the outlet-side space 125 by the air supply fan 135.

The air purification housing 120 is provided with an indoor exhaust port 123 and an outside air inlet port 124 which are in communication with the inlet-side space 122 and are positioned adjacent to each other with an edge of the air purification housing 120 interposed therebetween. The air in the room where the air purification unit 110 is installed is introduced into the inlet side space 122 through the indoor exhaust port 123. The outdoor air that has passed through the heat exchange unit 160 flows into the inlet side space 122 through the outside air inlet 124. The indoor exhaust port 123 and the outside air inlet port 124 are opened and closed by an air supply switching damper 155.

The air purifying housing 120 is formed with an indoor air supply 126 and an expansion connector 127 communicating with the discharge side space 125. The air in the discharge side space 125 is discharged and supplied to the room where the air purification unit 110 is installed through the indoor air supply 126. The piping part 190 for supply air is connected to the expansion connector 127.

The main air filter unit 130 is installed in the inner space 121 of the air purification housing 120 to separate the inner space 121 into an inlet-side space 122 and an outlet-side space 125. Filtration of air flowing from the inlet-side space 122 to the outlet-side space 125 is performed by the main air filter unit 130. In this embodiment, the main air filter unit 130 is a high-performance HEPA filter (131) that filters fine dust and the like, and is located in front of the HEPA filter (131) to filter large foreign matter and protect the HEPA filter (131) It will be described as having a pre-filter (Prefilter) (132). Since the HEPA filter 131 and the pre-filter 132 are commonly used in the field of air purification technology, detailed description thereof will be omitted.

The air supply fan 135 is installed in the interior space 121 of the air purification housing 120 to flow air from the interior space 121 to the discharge side space 125. By the operation of the air supply fan 135, the outside air may be introduced into the inlet-side space 122 in the state where the outside air inlet 124 is opened, and the indoor air may be introduced into the inlet-side space 122 in the state where the indoor exhaust port 123 is opened. ), And the air in the discharge-side space 125 may be discharged to the indoor air supply 126 and the expansion connector 127. The operation of the air supply fan 135 is controlled by the control unit 199.

The main optical plasma generator 140 is installed in the air purification housing 120 to generate the optical plasma in the inner space 121 of the air purification housing 120. The main optical plasma generator 140 includes a plurality of main optical plasma lamps 141 and 142 installed in the inner space 121 of the air purification housing 120, and direct current required for the main optical plasma lamps 141 and 142. It is equipped with a stabilizer (not shown) that supplies voltage stably, and an SMPS (adapter, not shown) that converts AC 220V general AC voltage into DC 12V DC voltage and supplies it to the stabilizer. The main optical plasma lamps 141 and 142 operate by stably receiving the required DC voltage from a ballast (not shown), and for the generation of optical plasma, the wavelength of vacuum ultraviolet rays (100 nm) to general sterilized ultraviolet rays (UV-) Multi-wavelength is generated in the range of the wavelength of A) (400 nm). In this embodiment, the plurality of main optical plasma lamps 141 and 142 are described as being located at least one on each side with the main air filter unit 130 interposed therebetween, but the present invention is not limited thereto, and the main air filter The unit 130 may be located on only one of the upstream side and the downstream side, and this is also within the scope of the present invention. The optical plasma generated by the main optical plasma lamps 141 and 142 destroys all organic molecules that are pollutants contained in the air. The vacuum ultraviolet wavelength has sufficient light energy to generate a photoplasma. The light wavelength of 100 to 280 nm not only destroys the bond of the molecule (M) due to the electron (e) of the organic compound, but also initiates the generation of oxygen plasma at room temperature. Because photoplasma is strengthened in a state of having high light energy, it generates purification agents such as electrons (e), ionized air, and hydroxyl radicals (OH ·) in an excited state with a high reaction. Purification agents generated by photoplasma destroy organic pollutants.

SMPS (adapter, not shown) converts AC 220V general AC voltage into DC 12V DC voltage and supplies it to the ballast, and the ballast (not shown) stably supplies DC voltage to the main optical plasma lamps (141, 142). It works final.

The air quality sensor 150 is installed in a form built into the control unit 199 to measure the concentration of carbon dioxide, pollutants and / or volatile organic compounds and fine dust in the air indoors. The concentration of carbon dioxide and fine dust in the indoor air measured by the air quality sensor 150 is transmitted to the control unit 199 and used to control the operation of the air supply switching damper 155.

The air supply switching damper 155 is installed in the inlet-side space 122 of the air purification housing 120 to control the amount of indoor air flowing into the inlet-side space 122 through the indoor exhaust port 123 and the outside air inlet 124. Through this, the ratio of the amount of outdoor air flowing into the inlet-side space 122 is adjusted. The air supply switching damper 155 is a plate shape that rotates around the hinge 156, and the amount of indoor air flowing into the inlet side space 122 through the indoor exhaust port 123 according to the rotational position of the air supply switching damper 155 And a ratio of the amount of outdoor air flowing into the inlet-side space 122 through the outside air inlet 124. When the air supply switching damper 155 is positioned to block the indoor exhaust port 123, only outdoor air is introduced through the air supply inlet 124 to the inlet side space 122, and the air supply switching damper 155 is supplied to the outdoor air inlet 124 If it is positioned to block the inlet side space 122, only indoor air is introduced through the indoor exhaust port 123. When the air supply switching damper 155 is positioned not to block both the indoor exhaust port 123 and the outside air inlet port 124, both indoor air and outdoor air are introduced into the inlet-side space 122. When the air supply switching damper 155 is positioned closer to the indoor exhaust 123 than the external air inlet 124 in a state that the indoor exhaust 123 and the external air inlet 124 are not blocked, the proportion of outdoor air increases And, when located closer to the outside air inlet 124 than the indoor exhaust 123, the proportion of indoor air increases. Although not shown, a drive motor is further provided that rotates the air supply switching damper 155 around the hinge 156 and controls operation by the control unit 199. That is, the rotation position of the air supply switching damper 155 is adjusted by the control unit 199.

The heat exchange unit 160 is connected to the outside air inlet 124 of the air purification unit 110 through a connection pipe 180. The heat exchange unit 160 is installed in the heat exchange housing 161, the heat exchange element 170 installed in the heat exchange housing 161, the exhaust fan 175 installed in the heat exchange housing 161, and the heat exchange housing 161 The auxiliary optical plasma generator 177 and a temperature sensor 179 installed in the heat exchange housing 161 are provided.

The heat exchange housing 161 provides an inner space 162 in which the heat exchange element 170 is installed. The interior space 162 of the heat exchange housing 161 is formed such that the exhaust path 163 through which indoor air is discharged to the outside and the inflow path 164 through which the outdoor air flows to the connector 180 intersect. The heat exchange element 170 is located at the intersection of the exhaust path 163 and the inflow path 164. The exhaust path 163 formed in the inner space 162 of the heat exchange housing 161 is located on the first exhaust space 163a located on the upstream side of the exhaust direction with the heat exchange element 170 therebetween and on the downstream side of the exhaust direction. Is separated into the second exhaust space 163b. An indoor exhaust pipe 165a through which indoor air flows is connected to the first exhaust space 163a, and an exhaust pipe 165b for discharging air to the outside is connected to the second exhaust space 163b. During heat exchange, the air in the first exhaust space 163a flows through the heat exchange element 170 to the second exhaust space 163b. When heat exchange is not required, the air in the first exhaust space 163a heats the heat exchange element 170 ) Can be moved to the second exhaust space 163b, and for this purpose, an exhaust bypass line (not shown) that directly communicates with the first exhaust space 163a and the second exhaust space 163b is formed. The inflow path 163 formed in the inner space 162 of the heat exchange housing 161 is located on the first inflow space 164a located on the upstream side of the inflow direction with the heat exchange element 170 therebetween and on the downstream side of the inflow direction. Is separated into a second inflow space 164b. The outside air inlet pipe 166 through which outdoor air flows is connected to the first inlet space 164a, and a connection pipe 180 connected to the air purification unit 110 is connected to the second inlet space 164b. During heat exchange, the air in the first inlet space 164a flows through the heat exchange element 170 to the second inlet space 164b. When heat exchange is not required, the air in the first inlet space 164a heats the heat exchange element 170 ) Can be moved to the second inflow space 164b, and for this purpose, an inflow bypass line (not shown) that directly communicates with the first inflow space 164a and the second inflow space 164b is formed. Although not shown, a switching valve for switching heat exchange and bypass operation by the heat exchange element 170 is further provided, and the operation of the switching valve can be controlled by the control unit 199.

The heat exchange element 170 is installed at a point where the exhaust path 163 and the inflow path 164 intersect in the internal space 162 of the heat exchange housing 161, and thus, the indoor air exhausted outdoors and the outdoor air introduced into the room. Heat exchange is made. Since the heat exchange element 170 is a configuration commonly used in the technical field of the present invention, detailed description thereof will be omitted.

The exhaust fan 175 is installed in the second exhaust space 163b of the heat exchange housing 161 to discharge air to the outdoors. The operation of the exhaust fan 175 is controlled by the control unit 199.

The auxiliary optical plasma generator 177 is installed in the heat exchange housing 161 to generate the optical plasma in the inner space 162 of the heat exchange housing 161. The auxiliary optical plasma generating device 177 includes a plurality of auxiliary optical plasma lamps 178a, 178b, and 178c installed in the inner space 162 of the heat exchange housing 161, and auxiliary optical plasma lamps 178a, 178b, and 178c. It is equipped with a stabilizer (not shown) for stably supplying the DC voltage required for the power supply, and an SMPS (adapter, not shown) for converting a normal AC voltage of AC 220V into a DC voltage of 12V and supplying it to the stabilizer. The auxiliary optical plasma lamps 178a, 178b, and 178c may be the same as the main optical plasma lamps 141, 142 of the air purification unit 110 described above. In this embodiment, the plurality of auxiliary optical plasma lamps 178a, 178b, and 178c include at least one heat exchange element 170 in each of the first exhaust space 163a, the first inlet space 164a, and the second inlet space 164a. It is described as being located adjacent to, but the present invention is not limited thereto. By the auxiliary optical plasma lamps 178a, 178b, and 178c, contamination of the heat exchange element 170 is reduced, and contamination on all air flow paths such as ducts and ventilation devices can be reduced. The operation of the auxiliary optical plasma generator 177 may be controlled by the controller 199.

The temperature sensor 179 is installed in the heat exchange housing 161 to measure the temperature of outdoor air flowing into the inner space 162 of the heat exchange housing 161. The temperature of the outdoor air measured by the temperature sensor 179 is transmitted to the control unit 199.

The air supply pipe portion 190 includes a supply pipe 191 extending from the expansion connector 127 of the air purification unit 110 and a plurality of additional exhaust ports 193 located on the supply pipe 191. The additional exhaust port 193 supplies air to the room together with the indoor air supply port 126. The additional exhaust port 193 and the indoor air supply port 126 may be located in each of a plurality of independent spaces formed in the room. For example, the indoor air supply 126 may be located in the living room, and the plurality of additional air outlets 193 may be located in the kitchen or each of the plurality of rooms.

The control unit 199 controls the operation of the air purification unit 110 and the heat exchange unit 160 to operate in various modes according to the temperature of the outdoor air measured by the temperature sensor 179. Specifically, the indoor ventilation system 100 includes a heat exchange ventilation mode shown in FIG. 2, a non-heat exchange ventilation mode shown in FIG. 3, an indoor circulation mode shown in FIG. 4, a heat exchange mixed ventilation mode shown in FIG. 5, and FIG. It can operate in one of the selected non-heat exchange mixed ventilation modes.

2 shows a state in which the indoor ventilation system 100 operates in a heat exchange ventilation mode. In the heat exchange ventilation mode, the temperature change of the indoor air is minimized through heat exchange between the indoor air and the outdoor air. Referring to FIG. 2, in the heat exchange ventilation mode, the indoor exhaust port 123 of the air purification unit 110 is closed by the air supply switching damper 155 and the heat exchange unit 160 is opened to allow heat exchange by the heat exchange element 170. The air supply fan 135, the exhaust fan 172, and the main / auxiliary optical plasma generators 140 and 177 operate while the air flow path is set. The outdoor air flowing into the room by the operation of the air supply fan (135) and the exhaust fan (172) exchanges heat with the indoor air discharged from the heat exchange element (170) and passes through the air purification unit (110) to supply the indoor air supply (126). ) And a plurality of additional air supply holes 193 to be supplied indoors. Air is filtered while passing through the main air filter unit 130 of the air purification unit 110, and the main / auxiliary optical plasma lamps 141, 142, 178a, 178b, and 178c operate together to operate the main / auxiliary optical plasma lamp ( 141, 142, 178a, 178b, and 178c) destroy the organic material that is a pollutant contained in the air through the purification agent. Accordingly, the quality of air supplied to the room is improved, and the lifespan of the main air filter unit 130 and the heat exchange element 170 is also increased. By the heat exchange ventilation mode, it is possible to maintain the optimum temperature condition by minimizing the change in the indoor temperature at the time when the temperature occurs between indoor and outdoor, such as summer or winter.

3 shows a state in which the indoor ventilation system 100 operates in a non-heat exchange ventilation mode. Referring to FIG. 3, in the non-heat exchange ventilation mode, the indoor exhaust port 123 of the air purification unit 110 is closed by the air supply switching damper 155 and the heat exchange unit 160 is prevented from being exchanged by the heat exchange element 170. ), The air supply fan 135 and the exhaust fan 172 and the main optical plasma device 140 operate while the air flow path is set. At this time, it is preferable that the auxiliary optical plasma device 177 does not operate. The outdoor air introduced into the room by the operation of the air supply fan 135 and the exhaust fan 172 does not exchange heat with the indoor air discharged from the heat exchange element 170 to the indoor air supply through the air purifying unit 110 ( 126) and a plurality of additional air supply holes 193. The air is filtered while passing through the main air filter unit 130 of the air purification unit 110, and the main optical plasma lamps 141 and 142 operate together to purify the agent generated by the main optical plasma lamps 141 and 142 Through this, the organic material, which is a pollutant contained in the air, is destroyed. Accordingly, the quality of air supplied to the room is improved, and the life of the main air filter unit 130 is also increased. The non-heat exchange ventilation mode operates at a time when the temperature difference between indoor and outdoor is small, such as spring or autumn, and the load is reduced because air does not pass through the heat exchange element 170.

4 shows a state in which the indoor ventilation system 100 operates in an indoor circulation mode (air clean mode). Referring to FIG. 4, in the indoor circulation mode, the air supply fan 135 and the main optical plasma device 140 operate while the outside air inlet 124 of the air purification unit 110 is closed. At this time, the exhaust fan 172 and the auxiliary optical plasma device 177 do not operate. Indoor air is circulated as shown by the operation of the air supply fan (135). The circulating air is filtered while passing through the main air filter unit 130 of the air purification unit 110, and the main optical plasma lamps 141 and 142 work together to purify the main optical plasma lamps 141 and 142. Through the agent, the organic material, which is a pollutant contained in the air, is destroyed. Accordingly, the quality of air supplied to the circulation is improved, and the life of the main air filter unit 130 is also increased. In indoor circulation mode, indoor inflow of outdoor air and outdoor outflow of indoor air do not occur, so indoor air changes are prevented to operate at a time when the temperature difference between indoor and outdoor is large, such as winter or summer, thereby improving heating and cooling energy efficiency. I can do it.

5 illustrates a state in which the indoor ventilation system 100 operates in a heat exchange mixed ventilation mode. In the heat exchange mixed ventilation mode, temperature change of indoor air is minimized through heat exchange between indoor air and outdoor air, and air supply using mixed air including outdoor air and indoor air is performed. Referring to FIG. 5, in the heat exchange mixed ventilation mode, both the indoor exhaust port 123 and the organic inlet port 124 of the air purification unit 110 are opened by the air supply switching damper 155 and heat exchange by the heat exchange element 170 is performed. The air supply fan 135, the exhaust fan 172, and the main / auxiliary optical plasma generators 140 and 177 operate while the air flow path of the heat exchange unit 160 is set to be possible. The outdoor air flowing into the room by the operation of the air supply fan 135 and the exhaust fan 172 is heat-exchanged with the indoor air discharged from the heat exchange element 170 to the outdoors, and the inlet side space 122 of the air purification unit 110 Is mixed with indoor air to form mixed air, and the mixed air is supplied to the room through the indoor air supply unit 126 and a plurality of additional air supply units 193 after passing through the main air filter unit 130. The mixed air is filtered while passing through the main air filter unit 130 of the air purification unit 110, and the main / auxiliary optical plasma lamps 141, 142, 178a, 178b, and 178c operate together to operate the main / auxiliary optical plasma lamp (141, 142, 178a, 178b, 178c) through the purification agent generated by the air pollutants contained in the organic material is destroyed. Accordingly, the quality of air supplied to the room is improved, and the lifespan of the main air filter unit 130 and the heat exchange element 170 is also increased.

6 shows a state in which the indoor ventilation system 100 operates in a non-heat exchange mixed ventilation mode. Referring to FIG. 6, in the non-heat exchange mixed ventilation mode, both the indoor exhaust port 123 and the organic inlet port 124 of the air purification unit 110 are opened by the air supply switching damper 155 and heat exchanged by the heat exchange element 170 In order to prevent this, the air supply fan 135 and the exhaust fan 172 and the main optical plasma device 140 operate while the air flow path of the heat exchange unit 160 is set. At this time, it is preferable to determine whether the auxiliary optical plasma device 177 operates according to the external air quality. The outdoor air flowing into the room by the operation of the air supply fan 135 and the exhaust fan 172 does not exchange heat with the indoor air discharged from the heat exchange element 170 to the outside, and the space 122 on the inlet side of the air purification unit 110 ) Is mixed with indoor air to form mixed air, and the mixed air is passed through the main air filter unit 130 and then supplied to the room through the indoor air supply 126 and a plurality of additional air supply 193. The mixed air is filtered while passing through the main air filter unit 130 of the air purifying unit 110, and the main optical plasma lamps 141 and 142 operate together to purify generated by the main optical plasma lamps 141 and 142 Through the agent, the organic material, which is a pollutant contained in the air, is destroyed. Accordingly, the quality of air supplied to the room is improved, and the life of the main air filter unit 130 is also increased.

 In the heat exchange mixed ventilation mode shown in FIG. 5 and the non-heat exchange mixed ventilation mode shown in FIG. 6, the control unit 199 supplies the air supply switching damper according to the carbon dioxide concentration value and the outdoor temperature exceeding a preset reference concentration in the control unit 199 ( By controlling the rotational position of 155), the mixing ratio of outdoor air and indoor air can be adjusted. When the carbon dioxide concentration exceeding the reference concentration shows a relatively low value, the indoor air outlet 123 maintains the indoor temperature according to the outdoor air inflow rather than the carbon dioxide concentration reduction performance by making the indoor air outlet 123 larger than the opening amount of the outside air inlet 124 Priority is given, and, on the contrary, when the concentration of carbon dioxide exceeding the reference concentration indicates a relatively high value, the concentration of carbon dioxide is reduced than the maintenance of room temperature by making the opening amount of the outside air inlet 124 larger than that of the indoor exhaust 123 By prioritizing performance, it is possible to strike a balance between heating and cooling energy efficiency according to maintaining the proper temperature of indoor air and reducing carbon dioxide concentration.

7 shows a configuration of an indoor ventilation system using an optical plasma according to a second embodiment of the present invention. Referring to FIG. 7, an indoor ventilation system 200 using an optical plasma according to a second embodiment of the present invention includes an air supply facility 200a for supplying air to the room, and an exhaust facility for discharging indoor air to the outdoors And a control unit 199 for controlling the operation of the air supply facility 200a and the exhaust facility 200b.

The air supply facility 200a includes an air purification unit 110 for processing and discharging harmful substances contained in the introduced air, a heat exchange unit 260 connected to an air inlet side of the air purification unit 110, and an air purification unit It includes a piping unit 190 for supplying air that is connected to the air discharge side of (110).

Since the configuration and operation of the air purification unit 110 are the same as those of the air purification unit 110 shown in FIG. 1, detailed description thereof will be omitted.

The heat exchange unit 260 is connected to the outside air introduction pipe 261 for introducing outside air into the air purification unit 110, the auxiliary air filter unit 262 installed in the outside air introduction pipe 261, and the outside air introduction pipe 261. An auxiliary optical plasma generator 265 to be installed and a temperature sensor 179 installed to the outside air introduction pipe 261 are provided.

The outside air introduction pipe 261 extends between the outside and the outside air inlet 124 of the air purification unit 110 to introduce outdoor air into the inlet side space 122 of the air purification unit 110. At least a portion of the outside air introduction pipe 261 is formed to pass through the indoor floor G of the building, so that the outside air flowing through the outside air introduction pipe 261 is exchanged with the indoor floor G of the building. As described above, the outside air introduced through the outside air introduction pipe 261 is heat-exchanged with the interior floor G of the building, so that a temperature difference between the indoor and outdoor temperatures is large, especially in winter, the temperature of the air introduced from the outdoor floor heating facility. It can be heated to match the room temperature.

The auxiliary air filter unit 262 is installed inside the outside air introduction pipe 261. The auxiliary air filter unit 262 is preferably located as close as possible to the outdoor side on the outdoor air introduction pipe 261, and in this embodiment, it is upstream from the portion passing through the indoor floor G of the building in the outdoor air introduction pipe 261. It will be described as being located on the side. Filtration of the outside air flowing through the outside air introduction pipe 261 is performed by the auxiliary air filter unit 262. In this embodiment, the auxiliary air filter unit 262 is a high-performance HEPA filter (264) that filters fine dust and the like, and is located in front of the HEPA filter (264) to filter out large foreign matter and protect the HEPA filter (264) It will be described as having a pre-filter (Prefilter) 263. Since the HEPA filter 264 and the pre-filter 263 are commonly used in the field of air purification technology, detailed description thereof will be omitted.

The auxiliary optical plasma generator 265 is installed inside the outdoor air introduction pipe 261 to generate the optical plasma. The auxiliary optical plasma generator 265 stably controls a plurality of auxiliary optical plasma lamps 266 and 267 installed inside the outside air introduction pipe 261 and the DC voltage required for the auxiliary optical plasma lamps 266 and 267. It has a ballast to supply (not shown) and an SMPS (adapter, not shown) to convert a normal AC voltage of AC 220V into a DC voltage of 12V to supply it to the ballast. The auxiliary optical plasma lamps 266 and 267 may be the same as the main optical plasma lamps 141 and 142 of the air purification unit 110 described above. In the present exemplary embodiment, the plurality of auxiliary optical plasma lamps 266 and 267 are described as being positioned at least one adjacent to the front and back with the auxiliary air filter unit 262 therebetween, but the present invention is not limited thereto. The contamination of the auxiliary air filter unit 262 is reduced by the auxiliary optical plasma lamps 266 and 267. The operation of the auxiliary optical plasma generating device 265 may be controlled by the control unit 199, when the outside air inflow is made through the outside air introduction pipe 261, and the outside air inflow through the outside air introduction pipe 261 is If not, it is preferably controlled so that it does not work.

The temperature sensor 179 is installed inside the outside air introduction pipe 261 to measure the temperature of the outside air flowing through the outside air introduction pipe 261. The temperature of the outdoor air measured by the temperature sensor 179 is transmitted to the control unit 199.

The air supply pipe portion 190 includes a supply pipe 191 extending from the expansion connector 127 of the air purification unit 110 and a plurality of additional exhaust ports 193 located on the supply pipe 191. The additional exhaust port 193 supplies air to the room together with the indoor air supply port 126. The additional exhaust port 193 and the indoor air supply port 126 may be located in each of a plurality of independent spaces formed in the room. For example, the indoor air supply 126 may be located in the living room, and the plurality of additional air outlets 193 may be located in the kitchen or each of the plurality of rooms.

The exhaust facility 200b discharges indoor air to the outdoors. The exhaust facility 200b includes an exhaust pipe 291 extending between indoor and outdoor, and an exhaust fan 292 installed on the exhaust pipe 291 and controlled by the control unit 199.

The control unit 199 controls the operation of the air supply facility 200a and the exhaust facility 200b, and operates in various modes according to the temperature of the outdoor air measured by the temperature sensor 179. Specifically, the indoor ventilation system 200 may operate in one mode selected from the heat exchange ventilation mode illustrated in FIG. 8, the indoor circulation mode illustrated in FIG. 9, and the mixed ventilation mode illustrated in FIG. 10.

8 shows a state in which the indoor ventilation system 200 operates in a ventilation mode. In the ventilation mode, the temperature change of the indoor air is minimized through heat exchange between the outdoor air flowing into the room and the indoor floor (G). Referring to FIG. 8, in the ventilation mode, the air supply fan 135, the exhaust fan 292, and the optical plasma generating device while the indoor exhaust port 123 of the air purification unit 110 is closed by the air supply switching damper 155 (140, 265) works. The outdoor air introduced into the room through the outside air introduction pipe 261 by the operation of the air supply fan 135 is exchanged while passing through the indoor floor G and passes through the air purifying unit 110 to supply the indoor air supply 126 and a plurality of It is supplied to the room through the additional supply air supply 193, the indoor air is discharged to the outside by the exhaust system (200b). The air is filtered while passing through the main air filter unit 130 of the air purification unit 110, and the main / auxiliary optical plasma lamps 141, 142, 266, and 267 operate together to maintain the main / auxiliary optical plasma lamps 141, 142, 266, 267), the organic material, which is a pollutant contained in the air, is destroyed through the purifying agent. Accordingly, the quality of air supplied to the room is improved, and the lifespan of the main air filter unit 130 and the auxiliary air filter unit 262 is also increased.

9 illustrates a state in which the indoor ventilation system 100 operates in an indoor circulation mode (air clean mode). Referring to FIG. 9, in the indoor circulation mode, the air supply fan 135 and the main optical plasma device 140 operate while the outside air inlet 124 of the air purification unit 110 is closed. At this time, the exhaust fan 292 and the auxiliary optical plasma device 265 do not operate. Indoor air is circulated as shown by the operation of the air supply fan (135). The circulating air is filtered while passing through the main air filter unit 130 of the air purification unit 110, and the main optical plasma lamps 141 and 142 work together to purify the main optical plasma lamps 141 and 142. Through the agent, the organic material, which is a pollutant contained in the air, is destroyed. Accordingly, the quality of air supplied to the circulation is improved, and the life of the main air filter unit 130 is also increased. In indoor circulation mode, indoor inflow of outdoor air and outdoor outflow of indoor air do not occur, so indoor air changes are prevented to operate at a time when the temperature difference between indoor and outdoor is large, such as winter or summer, thereby improving heating and cooling energy efficiency. I can do it.

10 illustrates a state in which the indoor ventilation system 100 operates in a mixed ventilation mode. In the mixed ventilation mode, a change in indoor temperature due to outdoor air flowing into the room is minimized, and air supply using mixed air including outdoor air and indoor air is performed. Referring to FIG. 10, in the mixed ventilation mode, the air supply fan 135 and the exhaust fan in the state where both the indoor exhaust port 123 and the organic inlet port 124 of the air purification unit 110 are opened by the air supply switching damper 155 292 and the main / auxiliary optical plasma generators 140, 262 operate. The outdoor air flowing into the room by the operation of the air supply fan 135 is heat-exchanged with the indoor floor (G) in the heat exchange unit (200a) and mixed with the indoor air in the inlet-side space (122) of the air purification unit (110) After forming the air, the mixed air is passed through the main air filter unit 130 and then supplied to the room through the indoor air supply 126 and a plurality of additional air supply 193. The mixed air is filtered while passing through the main air filter unit 130 of the air purification unit 110, and the main / auxiliary optical plasma lamps 141, 142, 266, and 267 operate together to maintain the main / auxiliary optical plasma lamp 141. , 142, 266, 267), the organic material, which is a contaminant contained in the air, is destroyed through the purification agent generated by. Accordingly, the quality of air supplied to the room is improved, and the lifespan of the main air filter unit 130 and the auxiliary air filter unit 262 is also increased. The air in the room is discharged to the outside by the operation of the exhaust fan 292.

In the mixed ventilation mode, the control unit 199 controls the rotational position of the air supply switching damper 155 according to the carbon dioxide concentration value, the pollutant concentration value, and the outdoor temperature exceeding the preset standard concentration in the control unit 199, thereby controlling the outdoor air and The mixing ratio of indoor air can be adjusted. When the carbon dioxide concentration or the pollutant concentration exceeding the reference concentration indicates a relatively low value, the opening amount of the indoor exhaust port 123 is greater than the opening amount of the outside air inlet 124 to increase the outdoor air inflow rather than the carbon dioxide concentration reduction performance. When the indoor temperature maintenance according to the priority is given, and, on the contrary, when the carbon dioxide concentration or the pollutant concentration exceeding the reference concentration indicates a relatively high value, the opening amount of the outside air inlet 124 is greater than the opening amount of the indoor exhaust 123 Therefore, by prioritizing the reduction of carbon dioxide concentration over maintaining the indoor temperature, it is possible to achieve a balance between heating and cooling energy efficiency according to maintaining the proper temperature of indoor air and the reduction of carbon dioxide concentration.

The present invention has been described through the above embodiments, but the present invention is not limited thereto. The above embodiments can be modified or changed without departing from the spirit and scope of the present invention, and those skilled in the art will recognize that such modifications and changes also belong to the present invention.

100, 200: indoor ventilation system 110: air purification unit
120: air purification housing 130: main air filter unit
135: air supply fan 140: main optical plasma generator
141, 142: main optical plasma lamp 150: air quality sensor
155: air supply switching damper 160, 260: heat exchanger
170: heat exchange element 175, 292: exhaust fan
177.265: Auxiliary optical plasma generator
178a, 178b, 178c, 266, 267: auxiliary light plasma lamp
179: temperature sensor 190: air supply piping
199: control unit 200a: air supply equipment
200b: exhaust equipment 261: outside air introduction pipe
262: auxiliary air filter unit 291: exhaust pipe

Claims (15)

An air purification housing providing an air purification space therein and having an outdoor air inlet through which outdoor air flows and an indoor air outlet through which indoor air flows, and an inlet side space communicating with the air purification space through the outside air inlet and the indoor exhaust outlet, and indoor And a main air filter unit separating into an exhaust side space communicating with the air, and adjusting a ratio of an amount of air flowing into the inlet side space through the outside air inlet and an amount of air flowing into the inlet side space through the indoor exhaust port. An air purifying unit having an air supply switching damper and a main optical plasma generator for generating an optical plasma in the air purification space;
A heat exchange part in which heat exchange for external air flowing into the inlet-side space is selectively performed;
An air quality sensor for measuring indoor air quality including carbon dioxide concentration;
A temperature sensor that measures the temperature of the outdoor air;
An air supply fan for flowing air from the air purification space to the discharge side space;
An exhaust fan that discharges indoor air to the outside; And
Based on the indoor air quality measured by the air quality sensor and the temperature of the outdoor air measured by the temperature sensor, the operation of the air purification unit, the heat exchange unit, the air supply fan, and the exhaust fan is controlled to perform a heat exchange ventilation mode. , Non-heat exchange ventilation mode, indoor circulation mode, heat exchange mixed ventilation mode and a control unit for operating in any one of the non-heat exchange mixed ventilation mode,
The heat exchange unit forms an exhaust path in which indoor air discharged to the outside by the exhaust fan flows inside, and an outdoor air inflow path through which the outdoor air flowing into the air purification unit by the air supply fan flows and crosses the exhaust path. The heat exchange housing is installed at a point where the exhaust path and the outside air inflow path intersect, and a heat exchange element that exchanges heat between the exhaust air flowing in the exhaust path and the inflow air flowing in the outside air inflow path, and the outside air inflow. Auxiliary optical plasma generating device for generating an optical plasma on the path or the exhaust path, an exhaust bypass line that allows indoor air to be discharged to the outdoors without going through the heat exchange element, and heat exchange by the heat exchange element and the exhaust bypass line Before switching the operation between bypass by And a valve,
In the heat exchange ventilation mode, the air supply fan and the exhaust fan are operated to perform heat exchange by the heat exchange element while the indoor air exhaust port is closed and the external air inlet is opened by the air supply switching damper. Plasma generator works,
In the non-heat exchange ventilation mode, the air supply fan and the exhaust fan are operated through the air supply inlet path and the exhaust bypass line while the indoor air vent is closed and the air inlet is open by the air supply switching damper. Flow is made,
In the indoor circulation mode, the air supply fan and the main optical plasma device operate while the indoor air exhaust port is opened and the external air inlet is closed by the air supply switching damper, and the exhaust fan and the auxiliary optical plasma device are Does not work,
In the heat exchange mixed ventilation mode, the air supply fan and the exhaust fan are operated to exchange heat by the heat exchange element while the indoor air exhaust port and the external air inlet are both opened by the air supply switching damper. The plasma generating device and the auxiliary optical plasma generating device operate,
In the non-heat exchange mixed ventilation mode, the air supply fan and the air exhaust fan are operated through both the air supply inlet path and the exhaust bypass line while the indoor air exhaust port and the air inlet port are both open by the air supply switching damper. Flow is made, the main optical plasma is operated, and the auxiliary optical plasma generator is determined whether it is operated according to the external air quality.
Indoor ventilation system. The method according to claim 1,
The main optical plasma generator comprises a main optical plasma lamp installed to be located in the inlet-side space or the outlet-side space,
Indoor ventilation system. The method according to claim 2,
The main optical plasma lamp generates a multi-wavelength in the wavelength range of 100nm to 400nm,
Indoor ventilation system. The method according to claim 2,
A plurality of main optical plasma lamps are installed in the air purification space,
The plurality of main optical plasma lamps are located at least one in each of the inlet-side space and the outlet-side space,
Indoor ventilation system. delete delete The method according to claim 1,
The auxiliary optical plasma generating device includes an auxiliary optical plasma lamp installed to be located on the outside air inlet path or the exhaust path,
Indoor ventilation system. The method according to claim 7,
A plurality of auxiliary optical plasma lamps,
The plurality of optical plasma lamps are installed at least one on the upstream side and the downstream side with the heat exchanger element interposed on the outside air inlet path, and at least one on the downstream side than the heat exchanger element on the exhaust path,
Indoor ventilation system. delete delete delete delete delete delete delete

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