KR101169761B1 - Air Filtering Equipment For Air Condition Room In Subway Station - Google Patents

Abstract

The present invention relates to an air filtration system of a subway station air conditioning room, and installed between an inlet port 110 and an outlet port 120 of the filtration body 100 and the filtration body 100 in which the air inlet 110 and the outlet 120 are formed. And a panel filter 140, and an electrostatic filter 150 installed between the inlet 110 and the outlet 120 of the filtration main body 100. In the present invention, the use of the electrostatic filter 150, the replacement cycle of the filter is long, the air purification efficiency is maintained for a long time, it is possible to filter the fine dust easily to obtain the effect of supplying clean air to the subway station.

Description

Air Filtering Equipment For Air Condition Room In Subway Station

The present invention relates to a subway history air conditioning room air filtration apparatus, and more particularly, to a subway history air conditioning room air filtration apparatus for removing fine dust contained in the air of the subway.

The subway station is a place for passengers to get on or off due to the stop of trains operating underground, and equipped with air conditioning and purification facilities that perform air conditioning, air filtration and ventilation at the platform and ticket office.

In the subway history air purification facility according to the prior art, an air circulation duct is connected to an external ventilation port to supply fresh air into the subway station.

The air purification system filters out dust or harmful substances of air flowing into the subway station from outside or air circulated inside. However, if the filter of the air purification system is not periodically replaced, dust or harmful substances are not filtered out and accumulate and accumulate in the air purification ducts, which seriously affects the health of people and decreases the air purification efficiency.

In the case of air cleaning facilities using self-cleaning filters or self-cleaning electric precipitators, moisture and corrosion are generated due to cleaning, which requires periodic maintenance, replacement, and management.In winter, freezing or freezing may occur. The problem is that you have to stop the system at all.

In addition, most of the air purification facilities installed in the subway station does not have a filtration function that traps the fine dust, so that the fine dust cannot be properly filtered out. As a result, agents and passengers who work in most subway stations are exposed to fine dust and continue to inhale fine dust.

The present invention has been made to solve the above problems of the prior art, and an object of the present invention is to provide a subway history air conditioning room air filtration device for filtering fine dust to supply clean air to the subway station.

In order to achieve the above object, the subway history air conditioning room air filtration apparatus according to the present invention, the inlet 110 and the outlet 120 of the air filter body 100 is formed; A panel filter 140 installed between the inlet port 110 and the outlet port 120 of the filtration body 100; And an electrostatic filter 150 installed between the inlet 110 and the outlet 120 of the filtration body 100.

The inlet 110 may include a first inlet 111 through which external air is introduced and a second inlet 112 circulating internal air of a subway station.

The electrostatic filter 150 may be a thin electrostatic filter configured in a roll manner.

The filtration body 100 has a roll housing 160 to which the electrostatic filter 150 is wound; A motor 161 for winding or unwinding the electrostatic filter 150 at one side of the roll housing 160; And a guide 162 for guiding the lifting and lowering of the electrostatic filter 150 may be provided.

The electrostatic filter 150 may be a fiber bundle filter.

The filtration main body 100 may be provided with a plurality of pressure sensors 171, 172, and 173 for measuring the pressure of air at a plurality of places.

The pressure sensors (171, 172, 173) comprises a first pressure sensor (171) for measuring the pressure at the inlet 110 side of the filtration body 100; A second pressure sensor 172 for measuring pressure between the panel filter 140 and the electrostatic filter 150; And a third pressure sensor 173 measuring pressure at the outlet 120 side of the filtration main body 100.

The inlet 110 and the outlet 120 of the filtration main body 100 may be provided with dust sensors 175 and 176 for measuring the concentration of fine dust.

As described above, the subway station air conditioning room air filtration device according to the present invention has an effect of supplying clean air to the subway station by using an electrostatic filter for a long period of replacing the filter, maintaining the air purification efficiency for a long time, and easily filtering out fine dust. You can get it.

In addition, the subway station air conditioning room air filtration apparatus according to the present invention automatically configures a thin electrostatic filter in a roll type that can be moved up and down along a guide, and automatically opens and closes the opening and closing degree of the filtration main body by the thin electrostatic filter according to the filtration state. You can get an adjustable effect.

In addition, the subway station air conditioning room air filtration apparatus according to the present invention can automatically measure the pressure of the air flowing in the internal space of the filtration main body by installing a plurality of pressure sensors and a plurality of dust sensors in a plurality of places of the filtration main body, It is possible to measure, collect and compare the concentration of fine dust in the incoming and outgoing air, and automatically adjust the area of the thin electrostatic filter facing the air to reduce the pressure loss caused by the thin electrostatic filter and to improve the life of the thin electrostatic filter. Prolonging effect can be obtained.

1 is a schematic configuration diagram of a subway filtration air conditioning room air filtration apparatus according to an embodiment of the present invention.
FIG. 2 is a front view of the electrostatic filter of FIG. 1.
FIG. 3 is a graph of the overall filtration efficiency according to the number of filtration days when only the panel filter is used and when the panel filter and the thin electrostatic filter are used for particles of 10 micrometers or less.
FIG. 4 is a graph showing the overall filtration efficiency according to the number of filtration days when only the panel filter is used and when the panel filter and the thin electrostatic filter are used for particles of 2.5 micrometers or less.
5 is a graph of pressure loss according to the amount of filtration when only the panel filter is used and when the panel filter and the thin electrostatic filter are used.
FIG. 6 is a graph of filtration efficiency according to particle size when only a panel filter is used and when a panel filter and a thin electrostatic filter are used.
7 is a fiber bundle filter according to an embodiment of the present invention.
FIG. 8 is a graph of the overall filtration efficiency according to the number of filtration days when only the panel filter is used and when the panel filter and the fiber bundle filter are used for particles of 10 micrometers or less.
FIG. 9 is a graph of the overall filtration efficiency according to the number of filtration days when only the panel filter is used and when the panel filter and the fiber bundle filter are used for particles of 2.5 micrometers or less.
10 is a graph of pressure loss according to the number of filtration days when only the panel filter is used and when the panel filter and the fiber bundle filter are used.

DETAILED DESCRIPTION The following detailed description of the invention refers to the accompanying drawings that show, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, certain features, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in connection with an embodiment. It is also to be understood that the position or arrangement of the individual components within each disclosed embodiment may be varied without departing from the spirit and scope of the invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is to be limited only by the appended claims, along with the full scope of equivalents to which such claims are entitled, if properly explained. In the drawings, like reference numerals refer to the same or similar functions throughout the several views, and length and area, thickness, and the like may be exaggerated for convenience.

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

1 is a schematic configuration diagram of a subway filtration air conditioning room air filtration apparatus according to an embodiment of the present invention.

As shown in Figure 1, the subway history air conditioning room air filtration apparatus according to an embodiment of the present invention, the inlet 110 of the air inlet 110 and the outlet 120 is formed, the inlet of the filtration body 100 ( And a panel filter 140 installed between the outlet 110 and the outlet 120, and an electrostatic filter 150 installed between the inlet 110 and the outlet 120 of the filtration body 100.

The filtration main body 100 is a tubular shape providing a flow passage 125 through which the introduced air can be purified, and the panel filter 140 and the electrostatic filter 150 are installed along the air flow direction. The inlet 110 side of the filtration main body 100 is provided with a damper 130 to reduce the vibration of the introduced air. The panel filter 140 is installed after the damper 130, and then the electrostatic filter 150 is installed. At the outlet 120 side of the filtration main body 100, a pump 155 for sucking air to the inlet 110 and flowing to the outlet 120 is installed. The outlet 120 in which the pump 155 of the filtration body 100 is installed is considerably smaller than the inlet 110.

The air introduced into the inlet 110 of the filtration main body 100 reduces vibration and noise while passing through the damper 130, and relatively large dust is filtered while passing through the panel filter 140, and the electrostatic filter 150. Fine dust is filtered while passing through. Since the electrostatic filter 150 is electrostatic, it is advantageous for collecting fine dust.

The structure of the filtration main body 100 shown in FIG. 1 is demonstrated in detail. The inlet 110 of the filtration body 100 may include a first inlet 111 through which outside air is introduced and a second inlet 112 through which internal air of the subway station is circulated. The first inlet 111 may be formed on the opposite side of the outlet 120, and the second inlet 112 may be formed on the side of the first inlet 111. As shown in FIG. 1, the second inlet 112 may be formed at a side portion of the filtration body 100. A duct (not shown) connected to the outside of the subway history may be connected to the first inlet 111, and the second inlet 112 may be connected to a duct (not shown) connected to the internal space of the subway history. Fresh air from the outside may be introduced into the first inlet 111, and internal air of the subway station may be introduced into the second inlet 112. The external air and the internal air introduced into the first inlet 111 and the second inlet 112 respectively pass through the panel filter first, and selectively filtered through the electrostatic filter 150 according to the concentration of the fine dust, It can be supplied internally.

FIG. 2 is a front view of the electrostatic filter of FIG. 1.

The detailed structure of the electrostatic filter 150 will be described with reference to FIG. 2. As shown in FIG. 2, the electrostatic filter 150 may be formed of a thin electrostatic filter configured in a roll manner. That is, the electrostatic filter 150 is a thin panel-type electrostatic filter, it may be wound in a roll manner may be installed in the filtration body 100. For reference, the English designation of the thin electrostatic filter is "Thin Electrostatic Fiber Filter" and the main producer is "EGIS".

The filtration main body 100 has a roll housing 160 in which a thin electrostatic filter is wound, a motor 161 for winding or releasing the electrostatic filter 150 at one side of the roll housing 160, and a lifting and lowering of the electrostatic filter 150. Guide 162 may be provided to guide the. The roll housing 160, the motor 161, the guide 162, and the like are components for releasing or winding the electrostatic filter 150 in the flow passage 125 of the filtration body 100. The electrostatic filter 150 may be removed from the roll housing 160 by the motor 161 and installed in the flow passage 125 of the filtration body 100 to face the flow direction of air, and then remove fine dust from the air. On the contrary, when the electrostatic filter 150 is wound around the roll housing 160, air may flow to the outlet 120 as it is. In addition, a part of the electrostatic filter 150 may be removed from the roll housing 160 to remove fine dust from a part of air passing through the filtration main body 100. The unwinding or winding state of the electrostatic filter 150 may be determined according to the pressure of air passing through the filtration body 100 and the concentration of fine dust.

Meanwhile, the electrostatic filter 150 may be installed in the filtration main body 100 in a roll manner such as a roll screen that may be installed in a window, and may be installed in a vertical or blind manner. Here, the vertical or blind generally means adjusting the amount of light introduced into the room by a plurality of sheets installed vertically or horizontally. A plurality of electrostatic filters 150 cut like a plurality of sheets for adjusting the amount of light may be installed in the flow passage 125 of the filtration body 100.

The filter main body 100 of Figure 1 is a configuration that can be adjusted by the pressure and the concentration of the fine dust to adjust the replacement time of the panel filter 140 and the electrostatic filter 150 and the opening degree of the flow passage 125 is shown. .

Referring to FIG. 1, the filtration main body 100 may be provided with a plurality of pressure sensors 171, 172, and 173 for measuring the pressure of air at a plurality of places. The pressure sensors 171, 172, and 173 measure the pressure between the first pressure sensor 171, the panel filter 140, and the electrostatic filter 150, which measure the pressure at the inlet 110 of the filtration body 100. The second pressure sensor 172 may include a third pressure sensor 173 for measuring pressure at the outlet 120 side of the filtration main body 100.

In addition, the inlet 110 and the outlet 120 of the filtration body 100 may be provided with dust sensors (175, 176) for measuring the concentration of the fine dust.

The pressure sensors 171, 172, and 173 and the dust sensors 175 and 176 collect pressure and fine dust concentration inside the filtration main body 100 to determine the degree of opening of the flow passage 125 by the electrostatic filter 150. It is connected to the controller 180. For example, when the pressure measured by the second pressure sensor 172 is significantly smaller than the pressure measured by the first pressure sensor 171, the pressure loss by the panel filter 140 is large. 140 may be the end of its life and need to be replaced. In addition, when the pressure measured by the third pressure sensor 173 is significantly smaller than the pressure measured by the second pressure sensor 172, the life of the electrostatic filter 150 is at the end, It may be time to replace it at the end of its life.

In addition, when the fine dust concentration measured by the dust sensor 175 on the inlet 110 side is smaller than a predetermined value capable of maintaining a fresh environment of the subway station, the controller 180 controls the electrostatic filter 150 by the motor 161. It is possible to reduce the pressure loss by opening the flow passage 125 of the filtration body 100 by winding up. On the contrary, when the concentration measured by the dust sensor 175 on the inlet 110 side is larger than the set value, the controller 180 releases the electrostatic filter 150 by the motor 161 to flow passage of the filtration main body 100. It can block 125 and remove fine dust. In addition, when the concentration of the dust sensor 176 on the outlet 120 side is smaller than the set value, the controller 180 may wind up the electrostatic filter 150 to reduce the pressure loss and extend the life.

In addition, when the difference in concentration of the fine dust from the dust sensor 175 on the inlet 110 side and the dust sensor 176 on the outlet 120 is smaller than the set value, the controller 180 is fine by the electrostatic filter 150. Recognizing that the dust is not filtered can inform the outside of the replacement time of the electrostatic filter 150. That is, the person who manages the subway history can immediately recognize that the electrostatic filter 150 needs to be replaced by a notification device such as an alarm sound or a notification that is automatically operated by the controller 180. At this time, the electrostatic filter 150 may be automatically replaced by an exchange device having an input unit for introducing a roll type thin electrostatic filter from the outside. The replacement cycle of the electrostatic filter 150 by the control unit 180 of each subway station is stored in a system of a higher class connected to a network, so that it is possible to grasp statistical replacement cycles, and to perform an overall inspection. It is also possible to identify the fine dust pollution.

3 to 6 and 8 to 10 are graphs created based on some experiments of the subway history air conditioning room air filtration apparatus according to an embodiment of the present invention to help understanding of the present invention. Here, the existing filter shown on the graph corresponds to the panel filter of the present invention.

FIG. 3 is a graph of the overall filtration efficiency according to the number of filtration days when only the panel filter 140 is used for particles of 10 micrometers or less (a) and when the panel filter 140 and the thin electrostatic filter are used (b). Is shown.

Referring to FIG. 3, when the panel filter 140 and the thin electrostatic filter are used together (b) compared to the case of using only the panel filter 140 (b), the overall filtration efficiency is about 0.5 higher at the beginning, and 11 days. After that it can be seen that it is maintained as high as 0.4. As shown in FIG. 3, it can be seen that the use of the panel filter 140 and the thin electrostatic filter (b) has better filtration efficiency than the case of using only the panel filter 140 (a).

4 shows a graph of the overall filtration efficiency according to the number of filtration days for the case of using only the panel filter 140 and the case of using the panel filter 140 and the thin electrostatic filter (d) for particles of 2.5 micrometers or less. Is shown. As shown in FIG. 4, the filtration efficiency of the particle size of the dust of 2.5 micrometers is about 0.1 drop compared to the case of 10 micrometers, but the panel filter 140 and the thin electrostatic filter are still used when the panel filter 140 is used. ), The filtration efficiency was about 0.3 higher than that of), and the difference gradually decreased after 11 days. As described above, even when the panel filter 140 and the thin electrostatic filter are used for the fine dust such as the size of 2.5 micrometers or less (d), the filtration efficiency is considerably good compared to the case where the panel filter 140 is used only (c). It can be seen that.

5 shows a graph of pressure loss according to the amount of filtration when using only the panel filter 140 (e) and when using the panel filter 140 and the thin electrostatic filter (f).

Referring to FIG. 5, when the panel filter 140 and the thin electrostatic filter are used (f) compared to the case of using only the panel filter 140 (e), the pressure loss is large at about 20 Pa at the beginning of the case where the amount of filtration is small. Afterwards, the pressure loss is increased in both cases while maintaining between 15 and 20 Pa. In both cases, the pressure loss increases because the clogging of the panel filter 140 and the thin electrostatic filter increases with time. Of course, when the panel filter 140 and the thin electrostatic filter are used (f) as compared with the case of using the panel filter 140 only (e), the pressure loss increases but the difference in the increase is not large. According to the present invention, even when using both the panel filter 140 and the thin electrostatic filter, it is possible to effectively remove the fine dust without a large pressure loss.

6 shows a graph of filtration efficiency according to particle size when using only the panel filter 140 (g) and using the panel filter 140 and the thin electrostatic filter (h).

Referring to FIG. 6, when the panel filter 140 and the thin electrostatic filter are used (h) compared to the case of using only the panel filter 140 at about 0.1 micrometer (h), the filtration efficiency according to the particle size is shown. It can be seen that this is higher than 0.4. In addition, when the particle size is gradually larger than 0.1 micrometers, the difference in filtration efficiency gradually decreases, when the panel filter 140 and the thin electrostatic filter are used as compared to the case of using only the panel filter 140 (h) (h). It can be seen that the filtration efficiency according to the particle size is about 0.3. As described above, it can be seen that the panel filter 140 and the thin electrostatic filter (h) are significantly advantageous to filter the fine dust in micrometer units as compared to the case of using the panel filter 140 only (g).

7 shows a fiber bundle filter.

As shown in Figure 7, the electrostatic filter 150 according to another embodiment of the present invention may be composed of a fiber bundle filter. The general filter collects dust particles in the size of open pores by the weaving of fibers, but the fiber bundle filter attracts dust particles contained in the flowing air by electrostatic force and attaches and collects dust particles in the flowing air. Since the fiber bundle filter does not interfere with air flow, the pressure loss is low and the collection efficiency is particularly high for fine particles. The fiber bundle filter is also known as a plimmer filter under the trade name, and the manufacturer of the plimmer filter is "Fresh Sweden".

FIG. 8 is a graph of the overall filtration efficiency according to the number of filtration days when using only the panel filter (i) and using the panel filter and the fiber bundle filter (j) for particles of 10 micrometers or less.

Referring to FIG. 8, when the panel filter 140 and the fiber bundle filter are used together compared to the case of using only the panel filter 140 (i), the overall filtration efficiency is about 0.6 higher at the beginning and 6 days. After that it can be seen that it is maintained as high as 0.4. As shown in FIG. 8, when the panel filter 140 and the fiber bundle filter are used together for the fine dust such as the size of 10 micrometers or less (j) when only the panel filter 140 is used (i) It can be seen that the filtration efficiency is better than that.

9 is a graph of the overall filtration efficiency according to the number of filtration days for the case of using the panel filter 140 only (k) and the panel filter 140 and the fiber bundle filter (l) for particles of 2.5 micrometers or less to be. As shown in FIG. 9, when the panel filter 140 and the fiber bundle filter are used together (l) compared to the case of using only the panel filter 140 (k), the overall filtration efficiency is about 0.45 higher at the beginning, After 6 days, it remained as high as 0.4. As such, the use of the panel filter 140 and the fiber bundle filter together with respect to fine dust such as a size of 2.5 micrometers or less (l) is considerably more efficient than the case of using the panel filter 140 alone (k). You can see that it is good.

10 is a graph of the pressure loss according to the number of days of filtration in the case of using only the panel filter (m) and the case of using the panel filter and the fiber bundle filter (n).

Referring to FIG. 10, when the panel filter 140 and the fiber bundle filter are used (n) as compared with the case of using only the panel filter 140 (m), the pressure loss is approximately 10 Pa at the beginning, and thereafter. In both cases, the pressure loss increases while maintaining approximately 10 Pa. When the panel filter 140 and the fiber bundle filter are used after 11 days (n), the pressure loss reaches a peak, and the pressure loss in both cases is the same for about 15 days. Was done. In both cases, the pressure loss increases because the clogging of the panel filter 140 and the fiber bundle filter increases with time. Of course, when using the panel filter 140 and the fiber bundle filter (n) compared to the case of using only the panel filter 140 (m), the pressure loss increases, but it can be confirmed that the difference in the increase is not large. According to the present invention, even when using both the panel filter 140 and the fiber bundle filter, it is possible to effectively remove the fine dust without a large pressure loss.

The drawings of the embodiments of the present invention described above are omitted in detail, and are schematically illustrated so as to easily identify parts belonging to the technical idea of the present invention. In addition, the embodiments are not intended to limit the technical spirit of the present invention, but are merely a reference for understanding the technical matters included in the claims of the present invention.

100: filtration body
110: inlet
111: first inlet
112: second inlet
120: outlet
125: flow passage
130: damper
140: panel filter
150: electrostatic filter
160: roll housing
161: motor
162: Guide
170: pressure sensor
171: first pressure sensor
172: second pressure sensor
173: third pressure sensor
175, 176: dust sensor
180:

Claims (10)

A filtration body 100 having air inlets 110 and outlets 120 formed therein;
A panel filter 140 installed between the inlet port 110 and the outlet port 120 of the filtration body 100; And
It includes an electrostatic filter 150 is installed between the inlet 110 and the outlet 120 of the filtration body 100,
The filtration main body 100 is a subway history air conditioning room air filtration device, characterized in that provided with a plurality of pressure sensors (171, 172, 173) for measuring the pressure of the air in a plurality of places. The method of claim 1,
The inlet 110 is a subway history air conditioning room air filtration device, characterized in that it comprises a first inlet port 111 through which the outside air is introduced and a second inlet port circulating the internal air of the subway station. The method of claim 1,
The electrostatic filter 150 is a subway history air conditioning room air filtration device, characterized in that the thin electrostatic filter configured in a roll method. The method of claim 3,
The filtration body 100 has a roll housing 160 to which the electrostatic filter 150 is wound;
A motor 161 for winding or unwinding the electrostatic filter 150 at one side of the roll housing 160; And
Subway filtration air conditioning room, characterized in that the guide 162 for guiding the lifting and lowering of the electrostatic filter 150 is provided. The method of claim 1,
The electrostatic filter 150 is a subway history air conditioning room air filtration device, characterized in that the fiber bundle filter. delete The method of claim 1,
The pressure sensors (171, 172, 173) comprises a first pressure sensor (171) for measuring the pressure at the inlet 110 side of the filtration body 100;
A second pressure sensor 172 for measuring pressure between the panel filter 140 and the electrostatic filter 150; And
And a third pressure sensor (173) for measuring the pressure at the outlet (120) side of the filtration main body (100). The method of claim 1,
The inlet 110 and the outlet 120 of the filtration main body 100 is provided with a dust sensor (175, 176) for measuring the concentration of the fine dust, the subway station air conditioning room air filter. delete delete

Images