KR101797204B1 - Real-time environment sensing-type system for indoor air quality management of apartment houses - Google Patents

Abstract

The present invention relates to a system for managing an indoor air quality of a real-time environment sensing-type apartment house which is capable of improving an indoor air quality by selecting indoor ventilation and indoor cleaning according to an indoor/outdoor air quality, and particularly, improving the removal efficiency of fine dust to fundamentally prevent the fine dust from being introduced into a room, as well as minimizing energy waste and simplifying the maintenance by allowing air to smoothly flow. To this end, the present invention includes: a path changer installed between a supply duct and an exhaust duct; a duct having a double tube-type heat exchange section; a dust collector for collecting fine dust after raising the particle size of the fine dust; and a means configured to measure an indoor/outdoor air quality.

Description

TECHNICAL FIELD [0001] The present invention relates to indoor air quality management system,

The present invention improves the indoor air quality by selecting indoor ventilation and indoor cleaning according to the indoor and outdoor air quality, and particularly enhances the removal efficiency of the fine dust, thereby preventing the fine dust from being introduced into the room, The present invention relates to a real-time environmentally-sensitive indoor indoor air quality management system that is easy to maintain and manage.

Unlike a single-family house, a multi-family house is a building with high-rise, high-end deterioration and meat-dense structure in order to provide residential space for multiple generations. There is a problem of deterioration of indoor air quality, A facility or an apparatus for improving the air quality is required.

Ventilation is a useful way to improve indoor air quality, but is constrained by the outdoor air environment.

The main evaluation items of the indoor air quality are temperature, humidity, VOC (volatile organic compound) concentration and CO ₂ (carbon dioxide) concentration, and the main items influencing the outdoor air quality by ventilation are temperature, humidity, VOC Volatile organic compound) concentration, O ₃ (ozone) concentration, and NO x (nitrogen oxide) concentration.

That is, the indoor air quality, which is generated by operating the air conditioner (or the apparatus) such as the air conditioner or the like, to have an appropriate temperature and humidity, may be deteriorated by the ventilation. In this case, ventilation is an increase factor of the air conditioner.

In addition, a high concentration of VOC, NOx, or O ₃ may be introduced into the room by the ventilation to further deteriorate the indoor air quality.

Thus, Patent Registration No. 10-0509332 discloses a gatchumyeo the FAST / SLOW / ECONO process for selecting a bypass operation, the number of stages control operation, mixed operation and ventilation saving operation according to indoor and outdoor temperature difference or enthalpy difference, and also, the indoor CO ₂ concentration And VOC concentration, and adjusts the number of times of air substitution or the amount of outside air supply to reduce energy consumption.

However, it is effective to reduce the energy consumption by selecting the operation mode according to the indoor / outdoor air quality. However, in addition to the temperature and enthalpy, various kinds of environmental factors of the outdoor air are sensed in real time to select an operation suitable for improving the indoor air quality. The filters that filter fine dust and VOCs are also resistant to airflow while minimizing particulate and VOC inflows while minimizing elements that resist air flow over the entire supply and exhaust passages. It is more important to reduce the energy consumption by maximizing the efficiency with respect to the operation time.

In order to construct an indoor air quality management system for each household of the apartment house, ducts for supply and exhaust must be provided for each compartment in the household, valves for switching the ventilation / It is necessary to concentrate the heat exchanger between the air supply and the exhaust, the fine dust, the NOx, the VOCs, and the filter for blocking the inflow of the O _{3. As} a result, there are many resistance elements applied to the air supply and exhaust flow. This is because it is necessary to respond appropriately according to the trend of increasing the number of days to announce the dust forecast and the increasing amount of NOx, VOCs and O ₃ .

In addition, since it is difficult for a resident of a multi-family residence to maintain maintenance unless it is a professional technician, maintenance should be minimized or the resident should be able to operate it easily enough to maintain the residence.

KR 10-0509332 B1 2005.08.11.

Accordingly, a problem to be solved by the present invention is to select an appropriate operation during the ventilation operation, ventilation and purge operation at the same time in response to the indoor / outdoor environment in real time, and operation for purifying the indoor air without ventilation, It is a real-time environment that can reduce the energy consumption as much as possible by interrupting the inflow of fine dust, NOx, VOCs and O ₃ , And to provide an indoor air quality management system for a sensitive apartment house.

In the apartment house indoor air quality management system of the present invention is a real-time environment-sensitive in order to achieve the above object, the temperature of the outdoor, moisture, particulate matter concentration, VOC concentration, NOx concentration, and O ₃ concentration to the outside environment factors including the outdoor air quality An atmospheric environment monitoring device 100 for measuring the atmospheric environment; And an indoor air quality management system (200) installed for each household of the apartment house to manage indoor air quality by ventilating or purifying the indoor air according to the indoor air quality and the outdoor air quality; And a control unit.

The indoor air quality management system 200 includes an air supply duct and an exhaust duct and includes a common section 221 having an outside air communication opening 221a communicating with the outside air to each of the air supply duct and the exhaust duct, A duct 220 having a double pipe-type heat exchange section 223 divided into a branch section 222 leading to a diffuser installed in each compartment in the household, and an exhaust duct penetrating the inside of the supply duct to perform heat exchange; The ventilation mode and the outdoor air communication port 221a provided close to the outdoor air communication port 221a in the common section 221 and simultaneously opening the air supply duct and the ventilation duct are closed and the air supply duct and the ventilation duct are mutually connected A path changer 230 capable of putting in a purge mode; A flocculation section 241 for increasing the particle size of particulate contaminants in the air by applying an electric field to the space through which the air supply air passes, a charge section 242 for charging particulate contaminants raised in size, a dust collection section 243 for collecting the charged particulate contaminants by electrostatic force (240) installed in the air supply duct of the common section (221) in the order of the flocculating section (241), the charging section (242) and the dust collecting section (243); A gas filter (250) installed in the air supply duct and connected to the vibration damper (240), for filtering gaseous pollutants; An indoor sensor (260) for measuring the indoor air quality using indoor temperature, humidity, VOC concentration, and CO ₂ concentration as indoor environmental factors; And ventilation mode and purge mode according to indoor / outdoor air quality when operating the indoor air quality control system. In addition, the operation of the smoke suppressor 240 and the indoor / And an intelligent control device 210 for determining whether to operate the gas filter 250 and controlling the gas filter 250.

The flocculating portion 241 is formed by alternately arranging an electrode rod for grounding and an electrode for applying a voltage of a pulse waveform in parallel to each other so that the air supply air is passed between the electrode rods and the charging portion 242 applies a pulse- And the dust collecting unit 243 is made of a metal foil for grounding so as to allow the supply air passing through the charging unit 242 to pass therethrough .

The dust collecting unit 243 is disposed on the water surface of the water contained in the water tank, and the air supply air is passed through the space for spraying the metal foam toward the nozzle, so that the particulate contaminants in the air are agglomerated in the spray liquid, And the spray droplets are collected in a water reservoir and sprayed again to the nozzles.

The indoor sensor 260 is provided for each compartment in the household, and the air flow rate can be adjusted by a valve or a fan in each branch section 222 of the air supply duct and the air discharge duct. And a flow rate of the air flow proportional to the degree of contamination in the compartment flows through the branching section (222).

The heat exchange section 223 is provided with a first bypass duct 224 connected in parallel to one of an air supply duct and an exhaust duct and is connected in parallel to a section where the vibration damper 240 and the gas filter 250 are installed The intelligent control device 210 is provided with a second bypass duct 225. The intelligent control device 210 opens only the branching section 222 in which the indoor air quality below the predetermined air quality is communicated with the measured compartment, The first bypass duct 224 or the second bypass duct 224 can be selectively operated according to the indoor / outdoor temperature, the outdoor fine dust concentration, the VOC concentration, the NOx concentration, and the O ₃ concentration when the indoor air temperature is controlled in the ventilation mode. So that the air flows through the second bypass duct (225).

According to the present invention configured as described above, it is possible to improve the indoor air quality by appropriately selecting the ventilation mode and the purge mode according to the indoor / outdoor air quality, including the path switch, the vibration damper, the gas filter and the heat exchange section, It is possible to prevent indoor inflow of outdoor fine dust by improving the efficiency and minimize the factor of resistance to the air flow in the path switching device, the vibration damper and the heat exchange section, so that the air flow is smooth, Can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a real-time environmentally sensitive apartment house indoor air quality management system according to an embodiment of the present invention; FIG.
2 is a view showing a household in which an indoor air quality management system 200 is installed.
Fig. 3 is a plan view of Fig. 2; Fig.
4 is a configuration diagram of the indoor air quality management system 200. Fig.
5 is a plan sectional view of a section where the path switch 230, the damper 240, and the gas filter 250 are installed in the common section 221.
6 is a perspective view of a section of the air supply duct 220a in which the vibration damper 240 and the gas filter 250 are installed.
7 is a perspective view showing another embodiment of the damper 240. Fig.
8 is an operational flowchart of the indoor air quality management system 200. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in FIG. 1, the real-time environmentally sensitive apartment indoor air quality management system according to the embodiment of the present invention includes an atmospheric environment monitoring device 100 for measuring outdoor air quality, And an indoor air quality management system (200) for ventilating or purifying indoor air according to the indoor air quality.

The atmospheric environment monitoring apparatus 100 is installed in a public area or a rooftop of any one of the complexes and uses outdoor temperature, humidity, fine dust concentration, VOC concentration, NOx concentration, and O ₃ concentration as outdoor environmental factors, . The outdoor air quality measured here is transmitted to the indoor air quality management system 200 in each household.

The atmospheric environment monitoring apparatus 100 for this purpose includes a temperature and humidity measuring instrument 110 for measuring temperature and humidity, a fine dust measuring instrument 120 for measuring a fine dust concentration, a VOC (volatile organic compound) concentration, NOx ) Concentration and an O ₃ (ozone) concentration, and a communication module 140.

The communication module 140 is a communication module for delivering to the indoor air quality management system 200 installed for each household by wire or wireless communication. In addition, as shown in the figure, outdoor air quality is transmitted to the smartphone 300 of a household resident It is good to have the function to do.

The indoor air quality management system 200 is installed in each household of the apartment house and will be described in detail with reference to FIG. 2 to FIG.

FIG. 2 is a plan view of the indoor air quality management system 200, FIG. 3 is a plan view of the indoor air quality management system 200, FIG. And the diffuser 228 are installed.

5 is a plan sectional view of the duct section provided with the path switch 230, the damper 240, and the gas filter 250. FIG. 5 shows various examples in which the air flow path is varied by the path switching unit 230 and the first and second three-way valves 224a and 225a.

6 is a perspective view of a duct section provided with the vibration damper 240 and the gas filter 250.

The indoor air quality management system 200 includes a duct 220 for ventilating or purifying each compartment in the household according to the outdoor air quality received from the atmospheric environment monitoring device 100 and for connecting each compartment in the household with the outdoor, A path changer 230 for changing the path of the air flow through the duct 220, a damper 240 for removing fine particulate matter from the air supply air, a gas filter 250 for removing gaseous contaminants from the air supply air, An indoor sensor 260 for sensing the indoor air quality, and an intelligent control device 210 for controlling the ventilating mode and the purifying mode according to the indoor air quality and the outdoor air quality.

Examples of the compartments in a room include a living room, a room, a kitchen, a washroom, and the like.

The duct 220 connects one end of the duct 220 to the outside air communication port 221a formed through the external wall and connects the other end of the duct 220 to the diffuser 228 installed on the ceiling of the compartment, Two are arranged side by side, one is used as an air supply duct 220a and the other is used as an exhaust duct 220b.

The air supply duct 220a and the exhaust duct 220b have a common section 221 having one end connected to the outside air communication port 221a communicating with the outside atmosphere and the other end connected to the distributor 222a, A branch section 222 connected to the common section 221 and branching to a diffuser 228 provided in each compartment in the house. The common section 221 includes a heat exchange section 223 are provided.

Here, the heat exchange section 223 is formed in the form of a double pipe that allows the exhaust duct 220b to pass through the inside of the air supply duct 220a and perform heat exchange between the air supply air and the exhaust air. The heat exchange section 223 is installed to the distributor 222a A section in which the path switching device 230, the vibration damper 240, and the gas filter 250, which will be described later, can be installed sequentially between the air communication port 221a and the outside air communication port 221a.

Of course, in the heat exchange section 223, the air supply duct 220a is expanded so as to allow the air exhaust duct 220b to pass through the interior of the air exhaust duct 220b smoothly. The heat exchange section 223 thus configured smoothly flows the air supply air and the exhaust air. As illustrated in FIGS. 2 and 3, the heat exchange section 223 can be installed in a sufficient length within each taxi cabin of the actual apartment house, .

In addition, in the heat exchange section 223, the first bypass duct 224 is connected in parallel to any one of the air supply duct 220a and the exhaust duct 220b. Of course, the duct of the heat exchange section 223 and the first three-way valve 224a for selecting the air flow in the first bypass duct 224 and guiding the air flow are installed at the parallel connection points to operate the first three-way valve 224a The air supply air and the exhaust air can be passed through the heat exchange section 223 without heat exchange or with heat exchange.

The diffuser 228 is a passage that communicates with the compartment air in the household, and includes a valve 228a to adjust the air volume. The diffuser 228 capable of adjusting the air volume is known from, for example, Registration Utility Model No. 20-0472462 or Patent No. 10-1132646, and therefore, detailed description thereof will be omitted. However, according to the embodiment of the present invention, the valve 228a is driven by a motor (not shown) controlled by the intelligent control device 210 to adjust the size of the air passage so as to adjust the air flow rate.

The valve 228a may be provided in the distributor 222a.

Meanwhile, a fan (not shown) may be installed in each diffuser 228 to adjust the air flow rate by adjusting the rotational speed of the fan.

4, the path switch 230, the vibration damper 240 and the gas filter 250 are sequentially installed between the outside air communication port 221a and the heat exchange section 223 in the common section 221 do.

5, the path switching unit 230 is provided closest to the outside air communication port 221a and is provided with a ventilation mode for simultaneous opening of the air supply duct 220a and the air discharge duct 220b, The air supply duct 220a and the exhaust duct 220b are simultaneously closed and the air supply duct 220a and the exhaust duct 220b are connected to each other.

According to the concrete embodiment, the air supply duct 220a and the exhaust duct 220b are connected to each other in parallel, and a through hole is formed in a part of the connected surface to mutually connect the air supply duct 220a and the air discharge duct 220b. A valve is provided on the air supply duct 220a and the air discharge duct 220b so as to block the through hole or to intercept the duct inside the duct. Accordingly, when the inner passages are closed together by the two side valves, the two ducts are mutually connected to form a circulation path of the room air, and when the simultaneous through-holes are closed by the two side valves, a path is formed between the room air and the outside air. In this case, when both ducts are closed, the both side valves smoothly flow the air when the air ducts 220a and the air ducts 220b are connected to each other at an acute angle with the through holes.

In addition, an intake fan 226 mounted inside the air supply duct 220a to blow air into the room, and an exhaust fan 227 installed inside the exhaust duct 220b to exhaust room air are provided.

According to the embodiment of the present invention, one of the intake fan 226 and the exhaust fan 227 is installed on the side of the outside air communication port 221a on the basis of the path switch 230 and the other is installed in the direction toward the room do. Accordingly, both the suction fan 226 and the exhaust fan 227 are operated in the ventilation mode, and only one fan installed in the direction toward the room is operated in the cleaning mode. For convenience of explanation, as shown in the figure, an exhaust fan 227 is provided on the outside air communication port 221a side and a suction fan 226 is installed in a direction facing the room.

The dust collector 240 for filtering the particulate pollutants and the gas filter 250 for filtering the gaseous pollutants are sequentially installed following the path switching unit 230 and installed only in the air supply duct 220a, , The particulate contaminants are first removed and then the gaseous contaminants are removed.

Referring to FIG. 6, the dust collector 240 includes an agglomeration unit 241 for applying an electric field to the space through which the air supply air passes, thereby increasing the particle size of the fine dust particles in the air, And a dust collecting part 243 for collecting the charged particulate contamination by electrostatic force. The dust collecting part 243 and the dust collecting part 242 are arranged along the flow direction of air supply air through the air supply duct 220a 243).

6, the flocculating portion 241 is disposed in such a manner that the first electrode bar and the second electrode bar are alternately arranged parallel to each other with an interval therebetween, So that the air supply air passes between the first electrode rod and the second electrode rod.

Here, the second electrode rod is grounded, and a positive voltage V1 is periodically applied to the first electrode rod. That is, a voltage (V1) of a periodic pulse waveform is applied between the first electrode and the second electrode.

By constituting the flocculating portion 241 in this way, particulate contaminants (fine dust) in the air passing between the first electrode bar and the second electrode bar are classified into particles charged to the anode (+) and particles charged to the cathode (-) So that the particle size after passage is larger than that before the passage. Otherwise, the particulate contaminants (fine dust) may be polarized or polarized in a certain direction by the electric field between the first electrode and the second electrode, or they may be aligned according to their polarity and be coagulated with each other by an electrostatic force.

The charging unit 242 has a structure in which rod-like discharge electrodes are arranged parallel to each other with intervals therebetween. Like the flocculating unit 241, the charging unit 242 is disposed so as to block the inner ducts of the ducts, , So that the air supply air passes between the discharge electrodes.

Here, either positive (+) voltage V2 or negative (-) voltage V2 is applied to the discharge electrode in a periodic pulse waveform.

By constituting the charging section 242 as described above, the particulate contaminants raised in particle size by the coagulating section 241 are charged while passing between the discharging electrodes, and the charged particles are charged after the particle size is raised, so that the charging efficiency can be increased.

The dust collecting unit 243 is disposed downstream of the charging unit 242 and includes a dust collecting pole for blocking the air supply air. The dust collecting unit 243 collects the electrostatic force of the charged particulate contamination in the air supply air passing through the dust collecting unit 243.

Here, the dust collecting pole is made of a metal foam that can blow air such as a sponge by foaming aluminum or copper, for example.

Further, the dust collecting electrode is grounded. That is, a periodic pulse voltage V2 is applied between the discharge electrode and the dust collecting electrode.

By forming the dust collecting section 243 and installing it in the air supply duct 220a, the charged particulate contaminants in the air supply air are trapped by the electrostatic force while the air supply air passes. Furthermore, since the dust-collecting electrode is made of a metallic foam, the area of contact with air is relatively larger than that of a single plate or a plurality of plates arranged in parallel, thereby maximizing the collection efficiency of charged particulate contaminants.

It is preferable that the dust collecting pole formed of the metal foam is detachable and can be replaced when installed in the air supply duct 220a. For example, a dust collecting pole is inserted into the air supply duct 220a and a hole for covering the dust collection pole 220a with the plug is formed on the upper surface of the air supply duct 220a. Inside the air supply duct 220a for inserting the dust collection pole through the hole, It is possible to form a protrusion along the rim of the pole or provide a groove to stably hold the dust collecting pole.

In the embodiment of the present invention, as described above, pulsed voltage is applied without applying a constant voltage in the coagulating portion 241 and the charge portion 242 in order to prevent plasma discharge.

When a high voltage is applied between the discharge electrode and the dust collecting electrode between the first electrode rod and the second electrode rod or between the discharge electrode 24 and the dust collecting unit 243 in the aggregating unit 241, a corona discharge occurs near the surface of the electrode, And after the initial corona discharge, a plasma path is formed between both electrodes to proceed to a plasma discharge.

However, when the plasma discharge is generated, harmful gas is generated and particulate pollutants are oxidized to cause secondary pollution, and electrode damage and energy waste are also caused.

Accordingly, in the embodiment of the present invention, the pulse width of the high voltage to be applied is appropriately determined within a range in which the plasma discharge does not proceed.

For example, since the interval between the first electrode bar and the second electrode bar is relatively smaller than the interval between the discharge electrode and the dust collecting electrode, a pulse type high voltage applied between the first electrode bar and the second electrode bar is applied between the discharge electrode and the dust collecting electrode Type high voltage applied between the first electrode bar and the second electrode bar is set to be smaller than the pulse width of the pulse-like high voltage applied between the discharge electrode and the dust collecting electrode, , And the high voltage magnitude and pulse width at this time may be set to a value which does not lead to a plasma discharge by repeated experiments.

According to another embodiment of the present invention shown in FIG. 7, the dust collecting unit 243 may be configured as an electrostatic atomizing type.

Referring to the drawing, the dust collecting unit 243 includes a water tank 243b having a hole formed at a lower portion of the duct and capable of containing water through the hole, a water tank 243b made of the metal foam, A dust collecting pole 243a which is disposed on the water surface of the dust collecting pole 243 so as to close the hole and grounded, a nozzle 243a which is installed on the inner ceiling of the duct and faces the dust collecting pole 243a, A pump (not shown) for pumping the water in the water tank 243b in which the sprayed droplets are to be recovered and spraying the water to the nozzle 243c, and a UV lamp (not shown) for irradiating ultraviolet rays.

Here, the water bottle 243b, the dust collecting electrode 243a, and the nozzle 243c are coated with a photocatalyst that generates a hydrophilic effect by the ultraviolet rays of the UV lamp.

Thus, the charged particulate contaminants in the air supply air passing between the nozzle 243c and the dust collecting electrode 243a are agglomerated in the droplet sprayed from the nozzle 243c to be subjected to a force for dropping the droplet as well as the electrostatic force, .

In addition, since the droplets aggregated with the particulate contamination permeate through the dust collecting electrode 243a made of the metallic foam, the dust collecting efficiency can be further increased. In addition, the particulate matter collected in the dust collecting electrode 243a coated with the photocatalyst So that the dust collecting electrode 243a can be continuously used.

Also, the water bottle 243b and the nozzle 243c are coated with a photocatalyst, so that contamination by particulate contamination can be minimized.

Of course, when the water recovered by the water bottle 243b is sprayed back to the nozzle 243c, it is possible to filter the particulate contamination with a separate filter (not shown), and to allow the water in the water bottle 243b to be replaced with clean water It is good.

Meanwhile, a second bypass duct 225 may be additionally provided in a section of the air supply duct 220a in which the vibration damper 240 and the gas filter 250 are installed, so that the air supply air may be supplied to the air supply duct 220a in accordance with the operation of the second three- It is possible to sequentially pass the damper 240 and the gas filter 250 or not to pass the damper 240 and the gas filter 250 and to pass the second bypass duct 225 instead. Here, the second three-way valve 225a operates as a motor (not shown) controlled by the intelligent controller 210. [

The gas filter 250 is installed along the flow direction of the air supply air to the damper 240 to filter out gas-phase contaminants. It is preferable to configure at least the outdoor environmental factors such as NOx (nitrogen oxide), VOC (volatile organic compound), O ₃ (ozone), and CO ₂ (carbon dioxide).

The gas filter 250 may employ the nanocomposite filter disclosed in the registered patent application No. 10-1198923 filed by the applicant of the present invention. The nanocomposite filter thus prepared is a nanocomposite bead prepared by coating a nanocomposite material prepared by mixing a titanium dioxide photocatalyst with a nanocomposite metal oxide on a bead and then filling the nanocomposite bead with a filter case, It is possible to smoothly pass the air through the gap between the material beads and to irradiate the ultraviolet rays with the UV lamp so that the gaseous contaminants in the air such as volatile organic compounds (VOC), nitrogen oxides (NOx) And it is possible to maintain the filtration performance constantly while improving the adsorption performance and decomposition performance of the contaminants.

The indoor sensor 260 is installed in each compartment, and measures the indoor air quality using indoor temperature, humidity, VOC concentration, and CO ₂ concentration in the compartment. Here, the temperature, humidity, VOC concentration and CO ₂ concentration measured by the indoor air quality are items for evaluating the indoor environment, and other items may be added.

The measured indoor air quality is transmitted to the intelligent control device 210.

The installation position of the indoor sensor 260 may be a ceiling or a wall surface in the compartment or may be installed in the diffuser 228 of the exhaust duct 220b as shown in an enlarged view in FIG. It is also possible to install it inside the exhaust duct 220b.

The intelligent control device 210 receives the outdoor air quality from the atmospheric environment monitoring device 100 and receives the indoor air quality from the indoor sensor 260 to determine whether the indoor air quality improvement operation is to be performed according to the indoor air quality, When the air quality improvement operation is to be started, the operation mode is determined according to the outdoor air quality, and the predetermined control operation is performed according to the operation mode.

The indoor air quality improvement operation is an operation for improving the indoor air quality by inducing the air flow to the air supply duct and the exhaust duct.

The operation mode is divided into a ventilation mode and a purge mode.

Here, the ventilation mode is divided into a ventilation / purge operation for performing the purifying operation in parallel with the ventilation operation, and a ventilation operation for stopping the purifying operation and ventilation.

The purge mode is an operation of circulating and purifying the indoor air through the supply duct and the exhaust duct while blocking the inflow of outdoor air.

Of course, the purifying operation is to operate the dust remover 240 to filter the particulate contaminants and to operate the gas filter 250 to filter the gaseous contaminants.

The control operation by the intelligent control device 210 will be described with reference to FIG.

First, a threshold THin of indoor air quality, which is a comfortable indoor air reference point, is input from the user (S10). Also, the room size of the compartment is input for each compartment.

In this case, the threshold value (THin) can be individually determined for the temperature, humidity, VOC concentration and CO ₂ concentration, but the temperature and humidity are input to the user's desired threshold according to the season, ₂ concentration may be set in advance as a dibol value.

After the threshold value THin is determined, the intelligent controller 210 acquires the indoor air quality Qin for each compartment in real time (S20) through the indoor sensor 260, compares the indoor air quality Qin with the threshold value THin, (S40). In addition, when outdoor air quality is transmitted from the atmospheric environment monitoring apparatus 100 while the indoor air quality Qin is acquired in real time and compared with the threshold value THin, the indoor air quality Qin is received.

Here, indoor air quality (Qin) is temperature, humidity, VOC concentration, and CO ₂ concentration that are designated as indoor environmental factors. However, since indoor air quality Qin is measured for each compartment, it is better to compare the measured value of the lowest quality among the compartments to the threshold value.

When comparing the indoor air quality Qin with the threshold value THin, it is possible to judge the necessity of improvement of the air quality by determining whether the room temperature and the humidity are deviated from the threshold value THin by a predetermined difference value have. Especially, in case of temperature, there may be a difference in the way of judging the necessity of air room improvement according to the season. For example, when the indoor temperature in summer is higher than the threshold temperature and when the indoor temperature in winter is lower than the threshold temperature, air quality improvement may be required.

It is judged that there is a need to improve indoor air quality when the indoor VOC concentration and the CO ₂ concentration are larger than the THin concentration.

If any of the temperature, humidity, VOC concentration, and CO ₂ concentration is lower than the threshold value, it is determined that there is a need to improve indoor air quality, and the indoor air quality improving operation is performed as follows.

The indoor air quality improving operation controls the valve 228a of the diffuser 228 according to the indoor air quality of each compartment to adjust the air flow rate by the compartment.

The air flow rate through each diffuser 228 is controlled by a valve 228a, which can be adjusted by the following equation.

In Equation 1, A _i is that the air flow rate determined by the valve (228a) in a diffuser 228 provided on the i-th compartment of a plurality of compartments, A is capable to fully open the valve (228a) passes through a maximum Is the maximum air flow rate, and a _i is a value calculated according to the indoor space size and the degree of contamination of the i-th compartment. That is, the maximum air flow rate A is determined by the structure of the valve 228a, and the actual air flow rate A _i can be controlled by controlling the valve 228a according to the calculated a _i . However, since the air flow is induced by the exhaust fan or the intake fan of the common section 221, the maximum air flow rate A passes through the individual diffuser 228 when all the valves of each diffuser 228 are fully opened Air flow rate.

Here, the a _i is placed such that the set to a value that is proportional to the degree of contamination of the interior space and a compartment pre-set rule for estimating the a _i. Here, the indoor space size for each compartment may be the value input by the user as described above, and the degree of contamination for each compartment may be, for example, a difference value between the indoor air quality of the compartment and the threshold value.

As described above, in the case of using the diffuser 228 capable of adjusting the air flow rate with a small fan in place of the valve 228a, A in Equation (1) Air flow rate, and A _i can be controlled by controlling the rotation speed of the fan according to a _i .

That is, each branch section 222 of the air supply duct and the exhaust duct allows a flow rate of air to flow in proportion to the size of the compartment communicating with the branch section 222 and the degree of contamination in the compartment.

By providing the valve 228a or the fan for adjusting the flow rate of the air that can flow for each diffuser 228, the intake fan 225 for guiding the airflow of the duct 220 or the fan The amount of air supply and exhaust air in the compartment is proportional to the size of the compartment and the degree of contamination of the compartment.

On the other hand, when indoor air quality items of less than a preset value indicating extremely poor air quality as air quality below the threshold THin air quality are measured in a specific compartment, only the valve of the diffuser 228 installed in the compartment is fully opened, And the valves of the diffuser 228 installed in the respective openings are closed. This is to ensure that only certain compartments can quickly improve indoor air quality when the degree of contamination of a particular compartment is very high.

After the air flow rate is adjusted for each compartment (S50), the outdoor air quality Qout is compared with the minimum satisfactory air quality THmin and the indoor air quality Qin to select either the ventilation mode or the purifying mode (S60, S70).

The comparison here includes absolute value comparison of air quality and comparison of relative values.

The minimum satisfactory air quality (THmin) is set as a reference point of the outdoor air quality which is not suitable for ventilation.

A concrete embodiment of the alternative method will be described as follows.

At least meet air quality (THmin) may meet the minimum criteria for the fine dust concentration, NOx concentration, VOC concentration, and O ₃ concentration in the outdoor environment factors. That is, the minimum satisfactory air quality THmin can be determined on the condition that the vibration damper 240 and the gas filter 250 are operated to clean the outdoor air and not be suitable for ventilation.

If the outdoor air quality Qout is less than the minimum satisfactory air quality THmin, the clean mode is selected (S60).

When the outdoor air quality Qout is equal to or greater than the minimum satisfactory air quality THmin, the difference between the outdoor air quality Qout and the indoor air quality Qin with respect to temperature, humidity, and VOC concentration, which are overlapping air quality items, (?) Or not (S70). Here, the critical error (DELTA) is set to a minimum value that can improve the indoor air quality in the ventilation mode. If it is less than this value, the indoor air quality is not improved and deteriorates in the ventilation mode.

To describe a concrete example, a value obtained by subtracting the indoor air quality in the outdoor air quality for the indoor air quality item that is the cause of performing the indoor air quality improvement operation exceeding the threshold THin for the indoor air quality is equal to or larger than the threshold error? The first condition in which the item exists and the value obtained by subtracting the indoor air quality from the outdoor air quality for all the remaining indoor air quality items except for the items satisfying the first condition satisfy the second condition that is equal to or less than the predetermined maximum allowable error The ventilation mode is selected, and when any one of the first and second conditions is not satisfied, the mode is selected.

Here, the maximum allowable error is a restriction condition for preventing all indoor air quality items from being severely deteriorated by ventilation. The maximum allowable error may be set for each air quality item, but some of them may not be set, and it may be excluded when determining whether the second condition is satisfied or not.

In other words, the maximum allowable error is applied to prevent the air quality from deteriorating above the allowable value by ventilation, while applying a threshold error that can be slightly improved by the ventilation mode for the indoor air quality item to be improved.

Here, the threshold error or the minimum tolerance may be set to '0' to make size comparison.

For example, when the indoor air quality is improved by the VOC concentration and the first condition is satisfied but the indoor temperature is maintained at the proper temperature by the summer and winter heating / cooling, if the second condition is not satisfied due to the indoor / The purifying mode in which the filter 250 is operated is performed to lower the VOC concentration while maintaining the room temperature.

The CO ₂ concentration is included in the outdoor environmental factor, but it can be considered that the surrounding environment of the apartment is not ventilated by CO ₂ concentration.

When the ventilation mode is selected, both the intake fan 226 and the exhaust fan 227 are operated in a state where both the air supply duct 220a and the exhaust duct 220b are communicated with the outside by controlling the path switching unit 230 Ventilate indoor air with outdoor air.

At this time, if the outdoor air quality for the particulate pollutants and the gaseous pollutants is higher than the outdoor air threshold value THout which is set in advance to be equal to or higher than the outdoor air threshold value THout (S80), then the air supply air is supplied to the dust chamber 240 and the gas filter 250 But passes through the second bypass duct 225 to perform the ventilation operation (S100). Of course, the dust collector 240 and the gas filter 250 at this time are not operated. 5 (b) shows the ventilation operation.

The outdoor air threshold value THout may indicate an air quality that is better than the minimum satisfactory air quality THmin and may be separately set for each air quality item so that the ventilation operation should be performed for all items of outdoor air quality, .

If the outdoor air quality is less than the outdoor air threshold THout under the ventilation mode, the air supply air is passed through the dust collector 240 and the gas filter 250 to perform the ventilation / purge operation (S200). Figure 5 (a) shows the ventilation / purge operation. Of course, the vibration damper 240 and the gas filter 250 are operated respectively, and the air flow to the second bypass duct 225 is blocked by controlling the second three-way valve 225a. That is, the outdoor air threshold value THout herein should be a value that can be obtained by introducing outdoor air having a higher air quality into the room without purification.

On the other hand, in the ventilation operation (S100) and the ventilation / purge operation (S200), whether to supply the air supply air to the heat exchange section (223) or the first bypass duct (224) according to the outdoor temperature and the room temperature And controls the first three-way valve 224a.

For example, if the difference between the outdoor temperature and the predetermined threshold temperature is larger than the difference between the room temperature and the threshold temperature, heat exchange is performed in the heat exchange section 223. If the difference is less than or equal to the threshold temperature, the first bypass duct 224 To be ventilated without heat exchange. That is, when ventilation is performed, it is controlled so that air flows through the bypass duct 224 when it is determined that indoor air quality with respect to temperature is deteriorated due to heat exchange between the outdoor air and the indoor air.

In this way the ventilation operation (S100) during the take a ventilation mode and or ventilation / purging operation (S200) as seamless as possible for the air flow hayeoseo performing, blocking the outdoor fine dust, NOx, VOC and O ₃ Indoor inlet And the change of the room temperature due to the ventilation can be minimized in a situation where the room temperature is maintained.

When the purge mode is selected, only the purge operation is performed (S300).

The purge operation under the purge mode controls the path switcher 230 so that both the air supply duct 220a and the exhaust duct 220b are communicated with each other instead of being disconnected from the outside air communication opening 221a and the intake fan 226 is operated And purifies the indoor air along the air circulation path via the exhaust duct 220b, the air supply duct 220a, the dust remover 240, and the gas filter 250. [ Of course, the vibration damper 240 and the gas filter 250 may be operated, and either the heat exchange section 223 or the second bypass duct 225 may be used. 5 (c) shows the purge operation state under the purge mode.

On the other hand, if the indoor air quality improvement operation is performed only at room temperature or humidity, and if the purification mode is selected instead of the ventilation mode, since indoor air quality can not be improved in the purification mode, the air conditioner or dehumidifier It is good to be able to.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, . ≪ / RTI > Accordingly, such modifications are deemed to be within the scope of the present invention, and the scope of the present invention should be determined by the following claims.

100: Atmospheric environment monitoring device
110: Temperature and humidity meter 120: Fine dust meter
130: Air pollutant meter 140: Communication module
200: Indoor air quality management system
210: Intelligent control device
220: duct 220a: air supply duct 220b: exhaust duct
221: common section 221a: outside air communication port
222: branch section 222a: distributor
223: Heat exchange section
224: first bypass duct 224a: first three-way valve
225: second bypass duct 225a: second three-way valve
226: Intake fan 227: Exhaust fan
228: Diffuser 228a: Valve
230: Path switcher
240: demagnetizer
241: coagulating part 242: lower part 243: dust collecting part
250: Gas filter
260: Indoor sensor
300: Smartphone

Claims (5)

delete delete delete delete An atmospheric environment monitoring device (100) for measuring outdoor air quality by using outdoor temperature, humidity, fine dust concentration, VOC concentration, NOx concentration and O ₃ concentration as outdoor environmental factors; And
An indoor air quality management system (200) installed for each household of the apartment house for ventilating or purifying the indoor air according to the indoor air quality and the outdoor air quality to manage the indoor air quality;
/ RTI >
The indoor air quality management system (200)
A common section 221 comprising an air supply duct and an exhaust duct and having an outside air communication opening 221a communicating with the outside air for each of the air supply duct and the air discharge duct; And a branch section 222 which reaches the installed diffuser and is capable of adjusting the air flow rate by a valve or a fan. In the common section 221, the air supply duct is expanded to allow the exhaust duct to pass through the inside of the air supply duct, A duct 220 having a double-tube type heat exchange section 223;
The ventilation mode and the outdoor air communication port 221a provided close to the outdoor air communication port 221a in the common section 221 and simultaneously opening the air supply duct and the ventilation duct are closed and the air supply duct and the ventilation duct are mutually connected A path changer 230 capable of putting in a purge mode;
A flocculation section 241 for increasing the particle size of particulate contaminants in the air by applying an electric field to the space through which the air supply air passes, a charge section 242 for charging particulate contaminants raised in size, a dust collection section 243 for collecting the charged particulate contaminants by electrostatic force (240) installed in the air supply duct of the common section (221) in the order of the flocculating section (241), the charging section (242) and the dust collecting section (243);
A gas filter (250) installed in the air supply duct and connected to the vibration damper (240), for filtering gaseous pollutants;
An indoor sensor (260) installed for each compartment in the household and measuring the indoor air quality using indoor temperature, humidity, VOC concentration, and CO ₂ concentration as indoor environmental factors; And
The ventilation mode and the purifying mode are selected depending on the indoor air quality at the time of operation and the ventilating mode and the purifying mode are selected depending on the indoor air quality at the time of operating the ventilator 240 and the gas An intelligent control device 210 for determining whether to operate the filter 250 and controlling it so that air having a flow rate proportional to the size of the compartment and the degree of contamination in the compartment flows through the branching section 222;
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The heat exchange section 223 is provided with a first bypass duct 224 connected to one of the supply duct and the exhaust duct in parallel,
A second bypass duct 225 connected in parallel to a section where the dust collector 240 and the gas filter 250 are installed,
The intelligent control device 210 activates the indoor air quality improving operation in a state in which only the branch section 222 in which the indoor air quality equal to or lower than the predetermined air quality is communicated with the measured compartment is opened and the other branch section 222 is closed The air is selectively supplied through the first bypass duct 224 or the second bypass duct 225 in accordance with the indoor / outdoor temperature, the outdoor fine dust concentration, the VOC concentration, the NOx concentration, and the O ₃ concentration when the ventilation mode is controlled. And,
The flocculating portion 241 is formed by alternately arranging an electrode for grounding and an electrode for applying a voltage of a pulse waveform in parallel to each other so that the air supply air is passed between the electrodes.
The charge section 242 is a parallel arrangement of electrode rods for applying a voltage of a pulse waveform so as to allow air supply air to pass between the electrode rods,
The dust collecting part 243 is disposed on the water surface of the water contained in the water reservoir 243b and has a dust collecting pole 243a made of a metallic foam to be grounded, So that the particulate contaminants in the air are collected in the dust collecting electrode 243a after collecting in the spray droplet while the spray droplets passing through the dust collecting electrode 243a are collected in the water tank 243b and sprayed back to the nozzle 243c , The water tank 243b, the dust collecting electrode 243a and the nozzle 243c are coated with a photocatalyst that produces a hydrophilic effect by ultraviolet rays, and ultraviolet rays are irradiated by a UV lamp
Indoor air quality management system in real - time environment - sensitive apartment house.

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