KR102103517B1 - Cooling and pollution factor reducing system for a building - Google Patents

Abstract

A building cooling system capable of reducing pollution factors relating to an embodiment: comprises a rainwater storage tank storing rainwater therein and installed at a ceiling of a building; a pump part sucking and discharging the rainwater stored in the rainwater storage tank; a hose part through which the rainwater discharged from the pump part passes; a nozzle part spraying the rainwater passing through the hose part; and a filter part installed between the pump part and the hose part and filtering the rainwater flowing from the pump part to the hose part. The nozzle part is disposed to be spaced apart from an outer wall of the building by a predetermined interval.

Description

Cooling and pollution factor reducing system for a building

Embodiments relate to a pollution-reducing-type building cooling system, and more specifically, to store rainwater and cool the structure by utilizing the stored rainwater and to reduce pollution factors including dust and fine dust around the structure. The present invention relates to a cooling system for buildings with reduced pollution factors that can be reduced.

In recent years, various serious environmental problems such as heat waves, droughts, landslides, ecosystem changes, typhoons, heavy rain damage, crop plantation changes, and sea level rise have been caused by the impact of domestic climate change. Of these, the damage from summer heat waves is increasing in severity in urban areas. In particular, the energy consumption of strong heat waves is rapidly increasing due to urban heat island phenomenon in large urban areas.

In Korea, due to the dry rainy season, not only is the time of heat wave accelerated, but it is also leading to strong heat waves for a long time, and the response to this is insufficient in the early stages.

Although tree planting in the city center has been suggested as an effective method to reduce the heat waves and urban heat islands, it is difficult to expect the role of trees to evacuate due to the rapidly changing climate. In addition, as the mortality rate of trees due to climate change and defects due to poor planting are increasing, the reduction of urban temperature through trees is limited in the current situation.

In addition to these heat waves, damage is increasing due to air pollution problems such as fine dust and yellow sand that are frequently generated in cities, leading to health problems for residents and safety problems such as corrosion of buildings.

The fine dust is classified according to the particle size, and the particle component plays an important role in the damage and toxicity that can be caused to the human body. If the size of the fine dust is very small, it can reach the alveoli through the nose and airways, and the smaller the size, the more likely it is to cause health problems as it can pass through the alveoli directly and circulate through the blood.

Therefore, in recent years, an effective method for reducing fine dust has been demanded and is actively researched, but at present, it is only a degree of reducing the concentration of fine dust by spraying water using a sprinkler.

Embodiments provide a pollution-reducing building cooling system that can store rainwater and cool the building by utilizing the stored rainwater and reduce pollution factors around the building.

In addition, embodiments provide a method for cooling a pollutant-reducing structure using a system for reducing a pollutant-reducing structure utilizing a stored rainwater.

The technical problems to be achieved by the present embodiment are not limited to the technical problems as described above, and other technical problems may be inferred from the following embodiments.

The pollution-reducing-type building cooling system according to an embodiment stores rainwater and an rainwater storage tank installed on the ceiling of the building; A pump unit that sucks and discharges rainwater stored in the rainwater storage tank; A hose portion through which rainwater discharged from the pump portion passes; A nozzle unit for spraying rainwater passing through the hose unit; It is installed between the pump portion and the hose portion includes a filter portion for filtering the rainwater flowing from the pump portion to the hose portion, the nozzle portion is disposed spaced a predetermined distance from the outer wall of the building.

The pump unit may have a self-suction function.

The pump portion may have a maximum pressure of 165 bar and a maximum discharge amount of 6 L / min.

The nozzle unit may be disposed at the ceiling height of the building.

The nozzle portion is plural, and each of the nozzle portions may have a maximum discharge amount of 0.039 L / min.

The nozzle portion may spray rainwater that has passed through the hose portion in the ground direction.

The nozzle unit may be installed spaced apart from the outer wall of the building by a distance of 0.5m to 1.5m.

Contaminant reduction-type building cooling system according to another embodiment includes a sensor unit for measuring external temperature and fine dust; And a control unit that operates the pump unit according to external temperature and fine dust values measured by the sensor unit.

According to another embodiment, a method of cooling a building using a building cooling system with a reduced pollution factor includes storing rainwater through the rainwater storage tank; Suctioning and discharging rainwater stored in the rainwater storage tank through the pump unit; Passing rainwater discharged from the pump part through the hose part; And spraying rainwater passing through the hose part through the nozzle part.

1 is a perspective view of a building in which a pollution factor reducing type building cooling system and a pollution factor reducing type building cooling system according to an embodiment are installed.
2 is a side view of a building in which a pollution-reducing-type building cooling system and a pollution-reducing-type building cooling system according to an embodiment are installed.
3 is a front view of a building in which a pollution factor-reducing building cooling system and a pollution-reducing building cooling system according to an embodiment are installed.
4 is a perspective view of a pollution-reducing building cooling system according to another embodiment.
5 is a block diagram showing steps of a method for cooling a building according to another embodiment.

Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings. It goes without saying that the following description is only for the purpose of embodying the embodiments and does not limit or limit the scope of the invention. From the detailed description and examples, what can be easily inferred by experts in the art is interpreted as belonging to the scope of rights.

As used herein, terms such as 'to be provided' or 'to include' should not be construed to include all of the various components or various steps described in the specification, and some components or some of them. It should be construed that they may not be included or may further include additional components or steps.

The terms used in the present specification have selected general terms that are currently widely used as possible while considering functions in the embodiments, but this may be changed according to intentions or precedents of a person skilled in the art or the appearance of new technologies. In addition, in certain cases, some terms are arbitrarily selected by the applicant, and in this case, their meanings will be described in detail in the description of the applicable invention. Therefore, the terms used in the embodiments should be defined based on the meanings of the terms and the contents of the embodiments, not simply the names of the terms.

1 is a perspective view of a building 200 in which a pollution factor reducing type building cooling system 100 and a pollution factor reducing type building cooling system 100 according to an embodiment are installed.

The building cooling system 100 for reducing pollution factors according to the embodiment stores rainwater and sucks and discharges rainwater stored in the rainwater storage tank 110 and rainwater storage tank 110 installed on the ceiling of the building 200 The pump unit 120, the hose unit 130 through which the rainwater discharged from the pump unit 120 passes, the nozzle unit 140 for spraying the rainwater passing through the hose unit 130, the pump unit 120 and the It is installed between the hose unit 130 includes a filter unit 150 for filtering rainwater flowing from the pump unit 120 to the hose unit 130, the nozzle unit 140 is the outer wall (200a) of the building 200 ) Are spaced apart at predetermined intervals.

Reduction factor pollution type building cooling system 100 according to the embodiment includes a rainwater storage tank 110 for storing rainwater, the rainwater storage tank 110 is the top of the ceiling of the building 200, that is, the building 200 It can be installed on the roof. The rainwater storage tank 110 supplies water to be used for the pollution factor-reducing building cooling system 100, and at this time, the water to be used for the pollution reduction-reduction building cooling system 100 may be rainwater stored in the rainwater storage tank 110.

By utilizing the existing stored rainwater without additional water supply, it not only prevents waste of water, but also enables efficient use of water, so it is possible to provide a more eco-friendly and efficient cooling system than the existing cooling system. The rainwater storage tank 110 may have a prismatic or cylindrical shape, but is not limited thereto, and the shape and size may be changed to correspond to the roof of the building 200.

The contaminant reduction type building cooling system 100 according to the embodiment may include a pump unit 120 for sucking and discharging rainwater stored in the rainwater storage tank 110. At this time, the pump unit 120 may be installed inside the rainwater storage tank 110, and after inhaling rainwater stored in the rainwater storage tank 110, discharge it to the hose unit 130 through the pressure of the pump unit 120. You can.

The pump unit 120 may have a self-suction function, so that the pump unit 120 has a self-suction function, so that the water level of the pump unit 120 can be maintained at a constant level within the pump, and the pump unit 120 is fixed for a certain time. Even after the pump unit 120 is stopped, the rainwater can be automatically sucked and discharged to the hose unit 130 even after it is stopped.

The pressure of the pump unit 120 and the discharge amount of the pump may vary depending on the amount of rainwater required for cooling the building 200. The pump unit 120 may have a maximum pressure of 165 bar and a maximum discharge amount of 6 L / min, but the maximum pressure and maximum discharge amount of the pump unit 120 are not limited by the description, and the size of the building 200 And the maximum pressure and the maximum discharge amount can be increased as the increase of the cooling function increases.

The contaminant reduction type building cooling system 100 according to the embodiment may include a rainwater discharged from the pump unit 120 and a hose unit 130 passing therethrough. The hose 130 may extend from the outlet of the pump 120 to be installed in the pump 120 and may serve to flow rainwater discharged from the pump 120. The hose portion 130 may have a size and shape corresponding to the shape of the building 200 and may include an elastic material. In addition, the hose portion 130 may include a material capable of withstanding the excellent pressure discharged from the pump portion 120.

The hose unit 130 extends from the outlet of the pump unit 120, passes through the rainwater storage tank 110, extends to the nozzle unit 140, and may have a cavity therein. Accordingly, the rainwater stored in the rainwater storage tank 110 is pressurized by the pump unit 120 and discharged to the outlet of the pump unit 120 and then flows to the nozzle unit 140 along the internal cavity of the hose unit 130. have.

The contaminant reduction-type building cooling system 100 according to the embodiment may include a nozzle unit 140 spraying rainwater passing through the hose unit 130. The shape and arrangement of the nozzle unit 140 will be described later in more detail with reference to FIGS. 2 and 3.

Reduction factor pollution type building cooling system 100 according to the embodiment is installed between the pump unit 120 and the hose unit 130, the filter unit for filtering the rainwater flowing from the pump unit 120 to the hose unit 130 It may include (150).

Rainwater stored in the rainwater storage tank 110 may be contaminated with external pollutants by introducing external pollutants. The filter unit 150 is installed between the pump unit 120 and the hose unit 130 through the filter unit 150 as it serves to filter rainwater flowing from the pump unit 120 to the hose unit 130 The filtered water may flow from the pump unit 120 to the hose unit 130.

The nozzle unit 140 may be arranged to be spaced apart from the outer wall 200a of the building 200 by a predetermined distance, which is a pollution factor reducing building cooling system 100 and a pollution factor reducing building cooling system 100 according to an embodiment 2) showing a side view of the building 200 in which the pollution factor reduction type building cooling system 100 and the pollution factor reducing type building cooling system 100 according to the embodiment and the embodiment 200 are installed in front view. It can be seen in more detail with reference to FIG. 3.

The nozzle part 140 may extend from one end of the hose part 130 and be installed in the hose part 130. One end of the hose part 130 and the nozzle part 140 may include an outer wall of the building 200 ( It may be disposed spaced apart from the predetermined distance from 200a). At this time, the nozzle unit 140 may be disposed 0.5m to 1.5m apart from the outer wall 200a of the building 200, but is not limited thereto, the size of the building 200, cooling function, and surrounding the building 200 Depending on the concentration of the contamination factor of the separation distance can be installed.

The hose unit 130 may include a shape in which the distance can be adjusted so that the separation distance of the nozzle unit 140 from the outer wall 200a of the building 200 can be changed. For example, the hose portion 130 may include a material such as stainless steel, and the length may be adjusted as needed. As the length of the hose portion 130 is adjusted, the separation distance from the outer wall 200a of the building 200 of the nozzle portion 140 may be adjusted.

The rainwater flowing through the hose portion 130 may be sprayed by the nozzle portion 140. At this time, the rainwater injected from the nozzle portion 140 as the separation distance of the nozzle portion 140 is adjusted, and also the building 200 It can be sprayed away from.

The nozzle unit 140 may be disposed at the height of the ceiling of the building 200. That is, the nozzle unit 140 may be installed at the same height as the height of the building 200 to receive and discharge rainwater from the rainwater storage tank 110. A plurality of nozzle units 140 may be provided. For example, the nozzle unit 140 may be 2 to 10, preferably 2 to 4. The number of nozzles 140 is not limited by the present disclosure.

 The plurality of nozzle units 140 may be disposed spaced apart from each other by the same distance. Referring to FIG. 3, which shows a front view of the building 200 in which the pollution factor reducing type building cooling system 100 and the pollution factor reducing type building cooling system 100 are installed, three nozzle units 140 are installed, for example. It may be, the nozzle unit 140 may have the same height as the height of the building 200. The nozzle unit 140 may be spaced apart by the same distance, and as an example, three nozzle units 140 may be disposed on both sides of the building 200 and one in the center of the building 200.

Each of the nozzle units 140 may have a maximum discharge amount of 0.039 L / min. At this time, as a plurality of nozzle units 140 may be installed, the pollution factor reducing type building cooling system 100 multiplies the maximum discharge amount of one nozzle unit 140 by 0.039 L / min by the number of nozzle units 140. The value may have the maximum injection amount of the building cooling system 100 with reduced pollution factors.

For example, if the number of nozzles 140 is two, the pollution factor-reducing building cooling system 100 may have a value of 0.078 L / min as the maximum injection amount, and the number of nozzles 140 may be four. In this case, a value of 0.156 L / min can be obtained as the maximum injection amount.

The nozzle unit 140 may spray rainwater that has passed through the hose unit 130 in the ground direction. That is, the injection hole of the nozzle unit 140 may be arranged to face the ground direction, and when the nozzle unit 140 has the same height as the height of the building 200, the rainwater discharged from the nozzle of the nozzle unit 140 is a building It may be sprayed from the height of (200) toward the ground.

At this time, the rainwater sprayed from the nozzle unit 140 may be dispersed and sprayed as droplets having a shape and size that changes according to the shape and size of the nozzle unit 140. The speed of rainwater sprayed from the nozzle unit 140 may also be affected by the shape and size of the nozzle unit 140.

The pollution-reducing type building cooling system 100 may reduce the temperature of the surroundings of the heated building 200 and the building 200 itself as the rainwater is sprayed toward the ground from the nozzle unit 140. As the temperature of the surroundings of the building 200 and the building 200 itself is reduced, the pollution factor-reducing building cooling system 100 may have a cooling effect. In addition, the pollution factor-reducing type building cooling system 100 may have an energy-reducing effect by preventing the use of energy to be used for reducing the temperature of the building 200, for example, air-conditioner operating energy through a cooling effect.

 The pollution-reducing-type building cooling system 100 may spray rainwater toward the ground to adsorb and remove pollutants scattered around the building 200 by rainwater. The pollutant may be a suspended matter floating in the air, and may be a substance that is absorbed by the human body and damages the human body, such as fine dust.

As the pollution-reducing-type building cooling system 100 sprays rainwater to remove pollution factors around the building 200, the pollution-reducing-type building cooling system 100 can reduce the concentration value of the pollution factor. As the pollutant concentration value around the building 200 decreases, the pollutant reduction-type building cooling system 100 is constructed (200) by reducing substances that are directly absorbed by the human body, such as fine dust, and damage human health. ) As well as the effect of preventing damage to human life.

The results of measuring the air temperature and fine dust using the pollution-reducing building cooling system 100 according to the embodiment are disclosed in Table 1 below.

division Injection rate 0.078 L / min Injection volume 0.156 L / min location Nozzle 140 outside Inside the nozzle part 140 Nozzle 140 outside Inside the nozzle part 140 Temperature measurement (° C) 37.45 36.10 37.21 35.35 Temperature reduction (° C) - 1.35 - 1.86 Temperature reduction rate (%) - 4% - 5% Fine dust PM2.5 measured value (ea) 354,642 225,506 371,346 201,092 Fine dust PM2.5 reduction rate (%) - 36 - 46 Fine dust PM5.0 measured value (ea) 145,198 56,323 190,599 52,682 Reduction rate of fine dust PM5.0 (%) - 61 72

The experimental data in Table 1 shows the experiment value with the amount of nozzles being 2 and the injection amount of the pollution factor-reducing building cooling system 100 being 0.078 L / min. It is the data which showed the experimental value which made the injection amount of (100) 0.156 L / min, respectively.

Regarding the outside of the nozzle unit 140 and the inside of the nozzle unit 140 shown in Table 1, the outside of the nozzle unit 140 is disposed at a predetermined distance from the outer wall 200a of the building 200 and the nozzle unit 140 Means a direction away from the outer wall 200a of the building 200 on the basis of, and the inside of the nozzle unit 140 is a nozzle unit disposed spaced apart from the outer wall 200a of the building 200 as described above It means the direction of getting closer to the outer wall 200a of the building 200 on the basis of (140).

The measurement time of air temperature and fine dust was the highest in the external activities, and the highest time for thermal stress and fine dust was from 11 to 16:00. At this time, the number after PM (Particulate Matter), which means fine dust, indicates the size of the fine dust, and the smaller the number, the smaller the dust. That is, PM2.5 shown in Table 1 means fine dust having a size smaller than PM5.0, and PM2.5 is generally referred to as ultrafine dust.

Looking at the results of the experiment through Table 1, the pump unit 120, the hose unit 130, the nozzle unit (in the rainwater stored in the rainwater storage tank 110 using the pollution factor-reducing building cooling system 100 according to the embodiment) 140), it can be seen that the temperature decreases and the concentration of fine dust decreases as it is sprayed.

Looking at this in more detail, when rainwater is injected at an injection amount of 0.078 L / min through the building cooling system 100 for reducing pollutants according to the embodiment, the outside of the nozzle unit 140 that is not affected by the ejection of rainwater While the temperature is 37.45 ° C, the temperature inside the nozzle unit 140, which is affected by the ejection of rainwater, is 36.10 ° C, and it can be seen that the temperature of about 1.35 ° C is reduced. That is, it is possible to have a temperature reduction rate of about 4% through the building cooling system 100 for reducing pollution factors according to the embodiment.

In addition, when rainwater is injected at a spraying amount of 0.078 L / min through the building cooling system 100 for reducing pollution factors according to the embodiment, fine dust PM2 outside the nozzle unit 140 that is not affected by the ejection of rainwater. 5 The measured value is 354,642ea, while the fine dust PM2.5 measured inside the nozzle unit 140, which is affected by the rainwater discharge, is 222,506ea, which indicates that it has a fine dust reduction rate of about 36%.

Likewise, when rainwater is injected at an injection amount of 0.078 L / min through the building cooling system 100 for reducing pollution factors according to the embodiment, fine dust PM5 outside the nozzle unit 140 that is not affected by the ejection of rainwater. While the 0 measurement value is 145,198ea, the PM2.5 measurement value of the fine dust inside the nozzle unit 140, which is influenced by the ejection of rainwater, is 56,323ea, and it can be seen that it has a fine dust reduction rate of about 61%.

The reduction of temperature and the reduction of fine dust when rainwater is injected with a spraying amount of 0.078 L / min through the building cooling system 100 for reducing pollution factors according to the embodiment is as follows.

Looking at the reduction in temperature when rainwater is injected at a spraying amount of 0.156 L / min through the building cooling system 100 for reducing pollution factors according to the embodiment, outside of the nozzle unit 140 that is not affected by the ejection of rainwater While the temperature is 37.21 ° C, the temperature inside the nozzle unit 140, which is influenced by the ejection of rainwater, is 35.35 ° C, and it can be seen that the temperature of about 1.86 ° C is reduced. That is, it is possible to have a temperature reduction rate of about 5% through the building cooling system 100 for reducing pollution factors according to the embodiment.

In addition, when rainwater is injected at a spraying amount of 0.156 L / min through the building cooling system 100 for reducing pollution factors according to the embodiment, fine dust PM2 outside the nozzle unit 140 that is not affected by the ejection of rainwater. 5 The measured value is 371,346ea, while the fine dust PM2.5 measured inside the nozzle unit 140, which is affected by the rainwater discharge, is 201,092ea, and it can be seen that it has a fine dust reduction rate of about 46%.

Likewise, when rainwater is injected at an injection amount of 0.156 L / min through the building cooling system 100 for reducing pollution factors according to the embodiment, fine dust PM5 outside the nozzle unit 140 that is not affected by the ejection of rainwater. While the 0 measurement value is 190,599ea, the PM2.5 measurement value of the fine dust inside the nozzle unit 140, which is influenced by the ejection of rainwater, is 52,681ea, and it can be seen that it has a fine dust reduction rate of about 72%.

When rainwater is injected at an injection amount of 0.156 L / min through the building cooling system 100 for reducing pollution factors according to an embodiment, the reduction of temperature and the reduction of fine dust are schematically as follows.

The degree of temperature reduction and fine dust when rainwater is injected at an injection amount of 0.078 L / min and rainwater is injected at an injection amount of 0.156 L / min through the building cooling system 100 for reducing pollution factors according to the embodiment When comparing the degree of reduction, it can be seen that the degree of temperature reduction and the degree of fine dust reduction are high when rainwater is injected at an injection amount of 0.156 L / min.

That is, in the conditions related to the present experiment, when the building cooling system 100 for reducing pollution factors according to the embodiment sprays rainwater at an injection amount of 0.156 L / min, the temperature is lower than when rainwater is injected at an injection amount of 0.078 L / min. And a target effect such as fine dust reduction can be obtained more efficiently.

The building cooling system 100 for reducing pollution factors according to another embodiment pumps according to the sensor 160 measuring external temperature and fine dust and the external temperature and fine dust measured by the sensor 160 The control unit 170 for operating the unit 120 may be further included.

The sensor unit 160 may include a temperature sensor for measuring external temperature and a fine dust detection sensor for measuring fine dust concentration, and the external temperature and fine dust concentration are measured through each sensor to control the value ( 170).

The sensor unit 160 may be installed at a place where external temperature and fine dust can be measured. In particular, the sensor unit 160 may be mounted on one side of the hose unit 130 or on one side of the nozzle unit 140, but the sensor unit The location of 160 is not limited to this.

The control unit 170 may receive the temperature and fine dust concentration outside the building 200 from the sensor unit 160 to operate the pump based on the value. For example, the user can set a specific value of temperature and fine dust concentration as a limit value, and the control unit 170 is designed to operate the pump unit 120 when the value measured by the sensor unit 160 is greater than or equal to each limit value. Can be.

The control unit 170 may be electrically connected to the sensor unit 160 to receive the temperature and fine dust concentration values measured by the sensor unit 160. In addition, the control unit 170 may be electrically connected to the pump unit 120 to operate the pump unit 120 based on the measured value received from the sensor unit 160. The control unit 170 may be mounted between the sensor unit 160 and the pump unit 120 and may be mounted on one side of the hose unit 130 or one side of the nozzle unit 140, but is not limited thereto.

5 is a block diagram illustrating a method of cooling a building 200 according to another embodiment.

The cooling method of the building 200 using the building cooling system 100 for reducing pollution factors according to another embodiment is a step of storing rainwater through the rainwater storage tank 110 (1100), and a rainwater storage tank 110 through the pump unit Inhaling and discharging the rainwater stored in the 1200, passing the rainwater discharged from the pump unit 120 through the hose unit 130 (1300), and the nozzle unit 140 through the hose unit 130 It may include a step (1400) for spraying rainwater passing through.

Since the structure, function, and effect of the structure of the pollution-reducing-type building cooling system 100 used in the cooling method of the building 200 are the same as described above, it will be omitted in the overlapping range.

Those of ordinary skill in the art related to the present embodiment will understand that it may be implemented in a modified form without departing from the essential characteristics of the above-described substrate. Therefore, the disclosed methods should be considered in terms of explanation, not limitation. The scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the equivalent range should be interpreted as being included in the present invention.

Claims (9)

A pollution-reducing building cooling system installed in a building to reduce pollution factors around the building,
A rainwater storage tank that stores rainwater and is installed on the ceiling of the building;
A pump unit installed inside the rainwater storage tank to suck and discharge rainwater stored in the rainwater storage tank;
A hose portion through which rainwater discharged from the pump portion passes;
A nozzle unit for spraying rainwater passing through the hose unit;
It is installed between the pump portion and the hose portion includes a filter portion for filtering the rainwater flowing from the pump portion to the hose portion,
The nozzle portion is disposed spaced a predetermined distance from the outer wall of the building,
When the length of the hose portion is adjusted, the predetermined distance from which the nozzle portion is spaced apart from the outer wall of the building is adjustable, a pollutant reduction type building cooling system. According to claim 1,
The pump unit has a self-suction function, pollution factor reduction type building cooling system. According to claim 1,
The pump unit has a maximum pressure of 165 bar and a maximum discharge amount of 6 L / min, pollution factor reduction type building cooling system. According to claim 1,
The nozzle unit is disposed at the height of the ceiling of the building, pollution factor reduction type building cooling system. According to claim 1,
A plurality of the nozzle portion, each of the nozzle portion has a maximum discharge amount of 0.039 L / min, pollution factor reduction type building cooling system. According to claim 1,
The nozzle unit sprays rainwater that has passed through the hose unit in the direction of the ground, a pollution-reducing building cooling system. According to claim 1,
The nozzle unit is installed spaced apart from the outer wall of the building by 0.5m to 1.5m intervals, pollution factor reduction type building cooling system. According to claim 1,
A sensor unit for measuring external temperature and fine dust; And
Further comprising, a control unit for operating the pump unit in accordance with the external temperature measured by the sensor unit and the value of fine dust, the pollution factor reduction type building cooling system. A method for cooling a pollutant-reducing structure using the cooling system for a pollutant-reducing building according to any one of claims 1 to 8,
Storing rainwater through the rainwater storage tank;
Suctioning and discharging rainwater stored in the rainwater storage tank through the pump unit;
Passing rainwater discharged from the pump part through the hose part; And
And spraying rainwater that has passed through the hose part through the nozzle part.

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