KR20230077167A - Ventilation system through damper control of air circulator according to temperature, humidity, CO2 concentration, and fine dust concentration - Google Patents

Abstract

According to the present invention, a ventilation system through damper control of an air circulator according to a temperature, humidity, CO_2 concentration, and fine dust concentration comprises: a device body (200) provided on one side of a room (100) and having a first damper (210), a second damper (220), a first fan (230), and a second fan (240) installed therein; a sensor unit (300) which senses the temperature, humidity, CO_2 concentration, and fine dust concentration of the room (100); a control unit (400) which controls the entire system; the first damper (210) which is an outdoor suction damper provided inside the device body (200) to move outdoor air into the room (100); a second damper (220) which is a cross damper provided inside the device body (200) to internally circulate the air of the room (100); a first fan (230) which is provided inside the device body (200) to move the air into the room (100); and a second fan (240) which is provided inside the device body (200) to move the air to the outside.

Description

Ventilation system through damper control of air circulator according to temperature, humidity, CO2 concentration, and fine dust concentration}

The present invention relates to a ventilation system by controlling an air circulator damper according to temperature, humidity, CO ₂ concentration, and fine dust concentration, and more particularly, to an air circulator by sensing temperature, humidity, CO ₂ concentration, and fine dust concentration. and a ventilation system by controlling an air circulator damper according to temperature, humidity, CO ₂ concentration, and fine dust concentration that determine the operating state of the damper.

In general, if indoor ventilation is not performed for a long time, it is not possible to maintain a comfortable condition when people are active due to air pollution or an increase in _CO2. plays a role in inhalation.

However, the air circulator of the conventional air introduction method has a disadvantage in that it is vulnerable to the temperature and humidity of the air coming in from the outside.

KR 10-0669028 B1 2007.01.09 KR 10-2157518 B1 2020.09.14

The present invention has been made to solve the above problems, and an object of the present invention relates to a ventilation system by controlling an air circulator damper according to temperature, humidity, CO ₂ concentration, and fine dust concentration, and more In detail, a ventilation system by controlling the air circulator damper according to the temperature, humidity, CO ₂ concentration, and fine dust concentration that determines the operating state of the air circulator and damper by sensing the temperature, humidity, CO ₂ concentration, and fine dust concentration is providing

In order to solve the above technical problems, the ventilation system by controlling the air circulator damper according to the temperature, humidity, CO ₂ concentration, and fine dust concentration according to the present invention is provided on one side of the room and has a first damper and a second damper therein. 2 A device body in which a damper, a first fan, and a second fan are installed, a sensor unit for sensing the indoor temperature, humidity, CO ₂ concentration, and fine dust concentration, and a control unit for controlling the entire system and the inside of the device body A first damper, which is an outdoor intake damper provided on the outside to move air from the outside into the room, and a second damper, which is a cross damper provided inside the device body and circulating the indoor air inside, and provided inside the device body to circulate air It is characterized in that it is configured to include a first fan that moves indoors and a second fan that is provided inside the device body and moves air outdoors.

Also preferably, the sensor unit may include a first sensor as a temperature sensor for sensing the indoor temperature, a second sensor as a humidity sensor for sensing the humidity of the indoor air, and a CO ₂ concentration sensor for sensing the CO ₂ concentration of the indoor air. It is characterized in that it is configured to include a third sensor which is phosphorus and a fourth sensor which is a fine dust concentration sensor for sensing the concentration of fine dust in the indoor air.

Also preferably, the control unit comprises a first step of sensing data from the first sensor to the fourth sensor, a second step of collecting data sensed in the first step, and the second step of collecting data sensed in the first step. The third step, which is the step of calculating the comfortable humidity using the temperature data collected in step 3, and the step of calculating the discomfort index using the temperature and humidity data collected in the second step and setting the operating level to 1 Comparing the discomfort index calculated in step 4 and the fourth step with the reference discomfort index, and increasing the operating level by 1 when the discomfort index is greater than the reference discomfort index, the fifth step and the second step are collected. one CO ₂ concentration The CO ₂ concentration is compared to the reference CO ₂ concentration. If the data is greater than the reference CO ₂ concentration, the deviation from the comfortable humidity calculated in the third step of the humidity data collected in the sixth step and the second step of increasing the operating level by 1 is the standard deviation and By comparing the humidity data and comparing the fine dust concentration data collected in the seventh step, which is a step of increasing the operation level by 1, and the second step, when the deviation from the comfortable humidity is greater than the reference deviation, with the reference fine dust concentration If the fine dust concentration data is greater than the reference fine dust concentration, if the operating level is 1 according to the eighth step of increasing the operating level by 1 and the operating level calculated in the fifth to eighth steps A ninth step of determining a first operating state, a second operating state when the operating level is 2, a third operating state when the operating level is 3, and a fourth operating state when the operating level is 4 or higher. When the operation state determined in the steps and the ninth step is the first operating state, the operating angle of the second damper is the first angle when the discomfort index is less than 68 according to the discomfort index calculated in the fourth step, the discomfort It is characterized in that the control is performed in the 10th step, which is the step of determining the second angle when the index is less than 75 and the third angle when the discomfort index is 75 or more.

Also preferably, the standard CO ₂ concentration is 1000 ppm, the standard discomfort index is 80, the standard deviation is 2, and the standard fine dust concentration is 30 μg/m 3 .

Also preferably, the first operating state is an operating state in which the first damper is closed, the second damper is opened, the first fan operates at a first operating air volume, and the second fan is stopped, and the second operation The state is an operating state in which the first damper is open, the second damper is closed, the first fan and the second fan operate at the first operating air volume, and the third operating state is the first damper is open The second damper is closed and the first fan and the second fan operate at a second operating air volume, respectively, and in the fourth operating state, the first damper is open, the second damper is closed, and the second damper is closed. It is characterized in that the first fan and the second fan are operating at a third operating air volume, respectively.

Also preferably, the first operating air volume is 350CMH, the second operating air volume is 700CMH, and the third operating air volume is 1000CMH.

Also preferably, the first angle is 30 °, the second angle is 60 °, and the third angle is characterized in that 90 °.

According to the ventilation system through the air circulator damper control according to the temperature, humidity, CO ₂ concentration, and fine dust concentration of the present invention made as described above, the following effects can be obtained.

The present invention relates to a ventilation system by controlling an air circulator damper according to temperature, humidity, CO ₂ concentration, and fine dust concentration, and more particularly, to an air circulator by sensing temperature, humidity, CO ₂ concentration, and fine dust concentration. and a ventilation system by controlling an air circulator damper according to temperature, humidity, CO ₂ concentration, and fine dust concentration that determine the operating state of the damper.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is only exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical scope of protection of the present invention should be determined by the technical spirit of the appended claims.

1 is a schematic diagram showing a ventilation system by controlling an air circulator damper according to temperature, humidity, CO ₂ concentration, and fine dust concentration according to a preferred embodiment of the present invention.
Figure 2 is a block diagram showing a ventilation system through the air circulator damper control according to temperature, humidity, CO ₂ concentration, and fine dust concentration according to a preferred embodiment of the present invention.
Figure 3 is a flow chart showing a ventilation system through the air circulator damper control according to temperature, humidity, CO ₂ concentration, and fine dust concentration according to a preferred embodiment of the present invention.
Figure 4 is a flow chart showing a ventilation system through the air circulator damper control according to temperature, humidity, CO ₂ concentration, and fine dust concentration according to a preferred embodiment of the present invention.
5 is a view showing a first operating state of a ventilation system by controlling an air circulator damper according to temperature, humidity, CO ₂ concentration, and fine dust concentration according to a preferred embodiment of the present invention.
6 is a view showing second to fourth operating states of a ventilation system through control of an air circulator damper according to temperature, humidity, CO ₂ concentration, and fine dust concentration according to a preferred embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings in order to describe in detail enough for those skilled in the art to easily implement the technical idea of the present invention.

1 is a schematic diagram showing a ventilation system by controlling an air circulator damper according to temperature, humidity, CO ₂ concentration, and fine dust concentration according to a preferred embodiment of the present invention.

Referring to FIG. 1, the ventilation system by controlling the air circulator damper according to the temperature, humidity, CO ₂ concentration, and fine dust concentration includes a device body 200, a sensor unit 300, a controller 400, and a first damper ( 210), a second damper 220, a first fan 230, and a second fan 240.

FIG. 2 is a block diagram illustrating a ventilation system by controlling an air circulator damper according to temperature, humidity, CO ₂ concentration, and fine dust concentration according to a preferred embodiment of the present invention.

Referring to FIG. 2 , the first damper 210 may be a suction damper provided inside the device body 200 to move outdoor air into the room 100, and the second damper 220 may be It may be a cross damper provided inside the device body 200 to internally circulate air in the room 100, and the first fan 230 is provided inside the device body 200 to circulate air inside the room 100. ), and the second fan 240 is provided inside the device body 200 to move air outdoors.

In addition, the sensor unit 300 includes a first sensor 310 which is a temperature sensor for sensing the temperature of the room 100 and a second sensor 320 which is a humidity sensor for sensing the humidity of the air in the room 100 and The third sensor 330, which is a CO ₂ concentration sensor for sensing the CO ₂ concentration of the air in the room 100, and the fourth sensor 340, which is a fine dust concentration sensor for sensing the concentration of fine dust in the air in the room 100, can be configured to include

Figure 3 is a flow chart showing a ventilation system through the air circulator damper control according to temperature, humidity, CO ₂ concentration, and fine dust concentration according to a preferred embodiment of the present invention, Figure 4 is a preferred embodiment of the present invention It is a flow chart showing a ventilation system through the air circulator damper control according to temperature, humidity, CO ₂ concentration, and fine dust concentration according to.

Referring to FIGS. 3 and 4 , the controller 400 performs a first step (S100) of sensing data from the first sensor to the fourth sensor, respectively, and each of the data sensed in the first step (S100). The second step (S200), which is the step of collecting data, and the third step (S300), which is the step of calculating the comfortable humidity using the temperature data collected in the second step (S200), and the second step (S200) The fourth step (S400), which is the step of calculating the discomfort index using the temperature data and the humidity data collected in and setting the operation level to 1, and the discomfort index calculated in the fourth step (S400) with the reference discomfort index By comparison, when the discomfort index is greater than the reference discomfort index, the CO ₂ concentration collected in the fifth step (S500) and the second step (S200) of increasing the operation level by 1 The CO ₂ concentration is compared to the reference CO ₂ concentration. When the data is greater than the reference CO ₂ concentration, the humidity data collected in the sixth step (S600) and the second step (S200) of increasing the operating level by 1 is calculated in the third step (S300). A seventh step (S700), which is a step of comparing the deviation from the comfortable humidity with the reference deviation, and increasing the operation level by 1 when the deviation of the humidity data from the comfortable humidity is greater than the reference deviation, and the second step (S200) The eighth step (S800) and the fifth step (S500) of comparing the fine dust concentration data collected in the step of comparing the fine dust concentration data with the reference fine dust concentration and increasing the operation level by 1 when the fine dust concentration data is greater than the reference fine dust concentration. ) to the eighth step (S800), when the operation level is 1, the first operation state, when the operation level is 2, the second operation state, and when the operation level is 3 As the third operating state, the ninth step (S900), which is the step of determining the fourth operating state when the operating level is 4 or higher, and the second damper when the operating state determined in the ninth step (S900) is the first operating state The operating angle of 220 is a first angle when the discomfort index is less than 68 and a second angle when the discomfort index is less than 75 according to the discomfort index calculated in the fourth step (S400). If it is 75 or more, it can be controlled as the 10th step (S1000), which is the step of determining the third angle.

At this time, the second damper 220 can adjust the amount of fluid passing due to the operating angle of the wing installed therein, and is completely closed at 0 ° and fully open at 90 °. The amount may be proportional to the operating angle.

Here, the first angle may be 25 ° to 35 °, the second angle may be 55 ° to 65 °, and the third angle may be 85 ° to 90 °.

In addition, the comfortable humidity can be obtained using the following Equation 1 as a humidity at which humans can comfortably engage in activities.

는 기온 ℃ 이다.)(remind

is the temperature °C.)

In addition, the discomfort index is a numerical value representing the degree of discomfort felt by humans according to temperature and humidity and can be obtained using Equation 2 below.

는 기온 ℃, 상기

는 습도 % 이다.)(remind

is the temperature in °C,

is the humidity %.)

The daily average standard value of CO ₂ concentration managed by the current Indoor Air Quality Management Act of Multi-Use Facilities is 1000ppm, and generally, when the discomfort index is 80 or more, it is known as the very high level, and it is known as an index that everyone feels uncomfortable, and generally humans It is known that you feel comfortable within the range of 2 in humidity, and the fine dust concentration of the good grade in the current forecasting grade for each fine dust concentration conducted by the Ministry of Environment is 30 μg/m 3 .

Accordingly, the reference CO ₂ concentration may be 1000 ppm, the reference discomfort index may be 80, the reference deviation may be 2, and the reference fine dust concentration may be 30 μg/m 3 .

In the first operating state, the first damper 210 is closed and the second damper 220 is open, the first fan 230 operates at a first operating air volume, and the second fan 240 It is an operating state of stopping, and in the second operating state, the first damper 210 is open, the second damper 220 is closed, and the first fan 230 and the second fan 240 are respectively It is an operating state operating at one operating air volume, and in the third operating state, the first damper 210 is open, the second damper 220 is closed, and the first fan 230 and the second fan 240 is an operating state operating at a second operating air volume, and in the fourth operating state, the first damper 210 is open, the second damper 220 is closed, and the first fan 230 and the second fan 240 may be an operating state operating at a third operating air volume.

At this time, the higher the air volume of each fan in each of the second to fourth operating states, the faster the air condition in the room 100 is improved. need.

Therefore, in a space of 200 m3, the time taken to change the operating state to the low operating state according to the air volume of the fan in each of the second operating state to the fourth operating state using a fan generally used in an air circulator is 200 times. measured and calculated the average value.

Experimental Example 1: Average value of the time taken to change the operating state for the operating air volume of the fan

Second operating state Third operating state Fourth operating state air volume hour air volume hour air volume hour Example 1 150 1922 Example 6 500 623 Example 11 800 429 Example 2 250 1153 Example 7 600 522 Example 12 900 381 Example 3 350 823 Example 8 700 447 Example 13 1000 343 Example 4 450 641 Example 9 800 391 Example 14 1100 312 Example 5 650 443 Example 10 900 348 Example 15 1200 286

(The unit of the air volume is CMH, and the unit of the time is seconds.)

And, in a space of 200㎥, noise at a distance of 1m from the center of the fan according to the air volume of the fan in each of the second operating state to the fourth operating state is measured 200 times using a fan generally used in an air circulator. and calculated the average value.

Experimental Example 2: Average value of noise for operating air volume of a fan

Second operating state Third operating state Fourth operating state air volume noise air volume noise air volume noise Example 1 150 40.01 Example 6 500 41.21 Example 11 800 47.92 Example 2 250 40.06 Example 7 600 42.50 Example 12 900 52.67 Example 3 350 40.29 Example 8 700 44.63 Example 13 1000 59.29 Example 4 450 40.79 Example 9 800 47.90 Example 14 1100 68.25 Example 5 650 43.44 Example 10 900 52.66 Example 15 1200 80.01

(The air volume unit is CMH, and the noise unit is dB.)

The results of Experimental Example 1 and Experimental Example 2 were calculated by using the following formula to calculate the nonconformity.

은 소음, 상기

는 시간이다.)(remind

silver noise, above

is the time.)

Second operating state Third operating state Fourth operating state air volume degree of nonconformity air volume degree of nonconformity air volume degree of nonconformity Example 1 150 1926 Example 6 500 105 Example 11 800 1726 Example 2 250 1169 Example 7 600 104 Example 12 900 1490 Example 3 350 880 Example 8 700 103 Example 13 1000 1460 Example 4 450 903 Example 9 800 917 Example 14 1100 20852 Example 5 650 978 Example 10 900 1281 Example 15 1200 286659

As shown in Table 3, the air volume in the second operating state is 350CMH in Example 3, the air volume in the third operating state is 700CMH in Example 8, and the air volume in the fourth operating state is Example 13 of 1000CMH is preferred.

Accordingly, the first operating air volume may be 300CMH to 400CMH, the second operating air volume may be 650CMH to 750CMH, and the third operating air volume may be 950CMH to 1050CMH.

In addition, the control unit 400 may be connected to the Internet by being connected to any one communication network among Bluetooth, Wi-Fi, and Internet of Things (IoT).

At this time, the control unit 400 may receive information such as outdoor air temperature, humidity, CO ₂ concentration and fine dust concentration from the connected Internet to increase the efficiency of air ventilation in the room 100 .

In addition, the control unit 400 generates a deep learning solution learned based on self-learning data and domain ontology existing on the connected Internet, and the first damper 210 and the first damper 210 as the generated deep learning solution. 2 The damper 220 , the first fan 230 , and the second fan 240 are controlled to improve air ventilation efficiency in the room 100 .

100: indoor 200: device body
210: first damper 220: second damper
230: first fan 240: second fan
300: sensor unit 310: first sensor
320: second sensor 330: third sensor
340: fourth sensor 400: controller

Claims (7)

In the ventilation system through the air circulator damper control according to the temperature, humidity, CO ₂ concentration, and fine dust concentration,
a device body 200 provided on one side of the room 100 and in which a first damper 210, a second damper 220, a first fan 230, and a second fan 240 are installed;
a sensor unit 300 for sensing the temperature, humidity, CO ₂ concentration, and fine dust concentration of the room 100;
a controller 400 that controls the entire system;
a first damper 210 which is an outdoor suction damper provided inside the device body 200 to move outdoor air into the indoor 100;
a second damper 220 provided inside the device body 200 and being a cross damper that circulates the air in the room 100;
a first fan 230 provided inside the device body 200 to move air into the room 100; and
It is provided inside the device body 200 and is configured to include a second fan 240 for moving air to the outdoors.
Ventilation system through air circulator damper control according to temperature, humidity, CO ₂ concentration, and fine dust concentration.
According to claim 1,
The sensor unit 300 is
a first sensor 310 that is a temperature sensor that senses the temperature of the room 100;
a second sensor 320 that is a humidity sensor that senses the humidity of the indoor air;
a third sensor 330 that is a CO ₂ concentration sensor for sensing the CO ₂ concentration of the indoor air;
It is configured to include a fourth sensor 340 that is a fine dust concentration sensor for sensing the concentration of fine dust in the air of the indoor 100.
Ventilation system through air circulator damper control according to temperature, humidity, CO ₂ concentration, and fine dust concentration.
According to claim 1,
The controller 400 is
A first step (S100) of sensing data by the first sensor to the fourth sensor, respectively;
A second step (S200) of collecting each data sensed in the first step (S100);
A third step (S300) of calculating a comfortable humidity using the temperature data collected in the second step (S200);
A fourth step (S400) of calculating a discomfort index using the temperature data and humidity data collected in the second step (S200) and setting an operation level to 1;
a fifth step (S500) of comparing the discomfort index calculated in the fourth step (S400) with a reference discomfort index and increasing the operation level by 1 when the discomfort index is greater than the reference discomfort index;
CO ₂ concentration collected in the second step (S200) The CO ₂ concentration is compared to the reference CO ₂ concentration. A sixth step (S600) of increasing the operating level by 1 when the data is greater than the reference CO ₂ concentration;
The deviation of the humidity data collected in the second step (S200) from the comfortable humidity calculated in the third step (S300) is compared with the standard deviation, so that the humidity data indicates that the deviation from the comfortable humidity is greater than the standard deviation. a seventh step (S700), which is a step of increasing the operation level by 1 if the value is large;
An eighth step (S800) of comparing the fine dust concentration data collected in the second step (S200) with the reference fine dust concentration and increasing the operation level by 1 when the fine dust concentration data is greater than the reference fine dust concentration. ;
According to the operating level calculated in the fifth step (S500) to the eighth step (S800), when the operating level is 1, a first operating state is established, and when the operating level is 2, a second operating state is established. a ninth step (S900) of determining a third operating state when the operating level is 3 and a fourth operating state when the operating level is 4 or higher; and
When the operating state determined in the ninth step (S900) is the first operating state, the operating angle of the second damper 220 according to the discomfort index calculated in the fourth step (S400) When the discomfort index is less than 68 In the tenth step (S1000), which is a step of determining a first angle, a second angle when the discomfort index is less than 75, and a third angle when the discomfort index is 75 or more
Ventilation system through air circulator damper control according to temperature, humidity, CO ₂ concentration, and fine dust concentration.
According to claim 3,
The standard CO ₂ concentration is 1000 ppm, the standard discomfort index is 80, the standard deviation is 2, and the standard fine dust concentration is 30 μg/m 3
Ventilation system through air circulator damper control according to temperature, humidity, CO ₂ concentration, and fine dust concentration.
According to claim 3,
In the first operating state, the first damper 210 is closed, the second damper 220 is open, the first fan 230 operates at a first operating air volume, and the second fan 240 stops is in action,
In the second operating state, the first damper 210 is open, the second damper 220 is closed, and the first fan 230 and the second fan 240 operate at the first operating air volume. is in action,
In the third operating state, the first damper 210 is open, the second damper 220 is closed, and the first fan 230 and the second fan 240 operate at a second operating air volume. state,
In the fourth operating state, the first damper 210 is open, the second damper 220 is closed, and the first fan 230 and the second fan 240 operate at a third operating air volume. being in a state
Ventilation system through air circulator damper control according to temperature, humidity, CO ₂ concentration, and fine dust concentration.
According to claim 5,
The first operating air volume is 300CMH to 400CMH, the second operating air volume is 650CMH to 750CMH, and the third operating air volume is 950CMH to 1050CMH
Ventilation system through air circulator damper control according to temperature, humidity, CO ₂ concentration, and fine dust concentration.
According to claim 3,
The first angle is 25 ° to 35 °, the second angle is 55 ° to 65 °, and the third angle is 85 ° to 90 °
Ventilation system through air circulator damper control according to temperature, humidity, CO ₂ concentration, and fine dust concentration.

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