KR20210150696A - Electromagnetic and electrostatic spray hybrid subway station fine dust purification system - Google Patents

Abstract

The present invention relates to an electromagnetic and electrostatic spray hybrid fine dust purification device in a subway station, which comprises: an upright body unit which has an inlet at a predetermined position for allowing air contaminated by multiple fine metal particles generated during subway operation of an underground station to be introduced therethrough, and has an inner space unit having an outlet provided on a ceiling for the purified air to be discharged; an electromagnetic device which is provided in the inner space unit of the body unit; an electrostatic spray device provided to a rear end of the electromagnetic device; and a plurality of electromagnet units formed on a side surface on the same axis of a primary pipe line, wherein the primary pipe line for the contaminated air to pass, is formed in a center portion of the electromagnetic device. The present invention primarily removes iron in the contaminated air by the electromagnet units.

Description

Electromagnetic and electrostatic spray hybrid subway station fine dust purification system

The present invention relates to an air purification device, and more particularly, electromagnetic and electrostatic spray hybrid subway station purification of fine dust in an underground station using electromagnetic and electrostatic spraying to remove pollutants contained in the air in the station It's about the device.

There are reports that the concentration of outdoor air dust is up to 2.5 times higher than the concentration of outdoor air due to the enclosed space in subways or underground shopping centers with a large number of unspecified floating populations. .

However, the air in these closed spaces often contains substances harmful to the human body, such as odors and VOCs, centering on ultra-fine dust that is difficult to filter with a filter.

In Korea Patent Publication No. 1366597, a frame to which a mesh network is combined, a fine dust collecting unit that is installed on the inner front of the frame based on the direction in which air flows in, and a fine dust collecting unit that collects fine dust and is installed at the rear end of the fine dust collecting unit Consists of a nitrogen oxide adsorption unit that adsorbs, a honeycomb board comprising a plurality of hexagonal through-holes connected in a plane, a mesh coupled to both sides of the honeycomb board, and a mesh positioned inside the hexagonal through-hole and constrained by the mesh An air purification filter for an air conditioner in an underground facility having a nitrogen oxide reduction function made of activated carbon chips is disclosed.

According to the prior literature, some substances including dust are removed by the filter to purify the air, but the filter must be replaced frequently because the collected dust containing metallic fine particles generated during subway operation clogs the pores of the filter. This may cause excessive cost, difficulty in operation, and secondary pollution due to filter disposal.

In addition, Korea Patent Publication No. 0658822 discloses a multiplier cell including an ionization means having a twisted structure to generate a vortex phenomenon through electric charging and a planar saw blade having a sawtooth shape in the axial direction, which serves as an axis of the ionization means. A multiplier including a shaft stationary, a dust collector that collects the multiplied dust due to charging during the intake or exhaust process in the multiplier, a vibration generator that automatically desorbs the collected polluted dust to the collecting unit by giving a predetermined vibration to the dust collector, and a vibration generator There is disclosed an air purification ventilation system for a subway station including a hopper unit for sucking polluted dust desorbed by the vacuum suction duct.

According to the prior literature, it is possible to remove harmful substances contained in the air of subway stations, but it is composed of a dry method of particle charging and dust collection. have.

Therefore, there is a need to develop a fine dust purification device to which electromagnetic and electrostatic spraying technology that can effectively treat fine dust including metallic fine particles generated in subways is applied as a hybrid.

Korean Patent Publication No. 1366597 Korean Patent Publication No. 0658822

The present invention was devised to solve the above problems, and it is an electromagnetic and electrostatic spray hybrid subway that can effectively remove various pollutants such as metallic fine particles contained in the air in an underground station and reduce the amount of secondary pollutants generated. The purpose of this is to provide a fine dust purification device in the station.

In addition, the present invention provides an electromagnetic and electrostatic spray hybrid subway station fine dust purification device including a circulation facility so that the used treated water can be used semi-permanently while treating even ultra-fine dust with high efficiency through the wet electrostatic spraying device. aim to

The electromagnetic and electrostatic spray hybrid subway station fine dust purification device of the present invention for solving the above problems has an inlet 130 through which polluted air of the underground station flows in; is provided at a predetermined position and the purified air is provided on the ceiling 150 An upright body portion 100 having an internal space provided with an outlet 140 through which air is discharged; an electromagnetic device 200 provided in the inner space of the body 100; an electrostatic spraying device 300 provided at the rear end of the electromagnetic device 200; and a primary conduit 210 through which the contaminated air passes in the central portion of the electromagnetic device, and a plurality of electromagnet units 220 are formed on the same side of the primary conduit. It features an electromagnetic and electrostatic spray hybrid subway station fine dust purification device that primarily removes iron in the polluted air by

In addition, a permanent magnet device 400 formed under the electromagnetic device for secondarily removing iron from the firstly removed iron from the contaminated air and guiding the contaminated air to the electrostatic spraying device may be included.

In addition, the electrostatic spraying device is supplied to the inside of one or more secondary conduits 310 as the contaminated air from which iron has been removed secondarily rises, and a first pipe has a central axis based on the cross section of the secondary conduit. 320 , and one or more first nozzles 330 provided at predetermined positions of the first pipe 320 may be included.

In addition, the body part 100 is a first zone 110 in which the inlet of the polluted air is formed; the electromagnetic device and the permanent magnet device are formed in the first section, and the outlet is formed through which the purified air is discharged. The electrostatic spraying device is formed in the second zone 120 , and a connection part 500 may be formed at a lower predetermined position where the first zone and the second zone contact each other.

In addition, a storage tank 340 for storing water discharged from the electrostatic spraying device to a predetermined depth is formed at the bottom of the second zone, and between the electrostatic spraying device and the storage tank, fine particles in the contaminated air and A collecting tank 350 for collecting the combined droplets; may be formed.

In addition, an electrostatic spray water tank 360 is formed at the top of the second section to supply water to the electrostatic spraying device, and the water supplied to the electrostatic spray water tank is supplied from the storage tank through a circulation pipe 370; It can be used by circulating water through

In addition, an electrode 322 connected to a '-' lead wire 321 may be provided at a predetermined position inside the first pipe, and a '+' lead wire 323 may be connected to the body part 100 .

In addition, the electromagnet unit includes a bar-shaped electromagnet rod 221; an electric wire 222 wound around the electromagnet rod to form a magnetic field when energized; and a plate-shaped collecting plate 223 at the end of the electromagnet bar to magnetically attach and remove iron in the polluted air, and generate an electromagnetic field through electrical connection and short circuit at both ends of the electric wire. can do.

According to the electromagnetic and electrostatic spray hybrid subway station fine dust purification device of the present invention, it is equipped with an electromagnetic metal particle collecting device and an electrostatic spraying device using treated water, so it is possible not only to remove metal particles and fine particles, but also to re-scatter them. It has the advantage of being able to prevent

In addition, according to the electromagnetic and electrostatic spray hybrid subway station fine dust purification device of the present invention, a wet electrostatic spray device using treated water is further provided, so that the removal efficiency of pollutants including ultrafine dust can be maximized. have.

In addition, according to the electromagnetic and electrostatic spray hybrid subway station fine dust purification device of the present invention, since the air is heated or cooled by contacting the air with the treated water, there is an advantage in that the energy required for heating or cooling can be reduced.

1 is an air flow diagram of a fine dust purification device in an electromagnetic and electrostatic spray hybrid subway station according to a preferred embodiment of the present invention.
FIG. 2 is a flow chart of water of the fine dust purification device in the hybrid electric and electrostatic spraying subway station shown in FIG. 1 .
3 is a cross-sectional view of a fine dust purification device in an electromagnetic and electrostatic spray hybrid subway station.

Hereinafter, an electromagnetic and electrostatic spray hybrid subway station fine dust purification device according to the present invention will be described with reference to the accompanying drawings.

In the present application, terms such as “comprise”, “have”, or “include” are intended to designate the existence of features, numbers, steps, components, parts, or combinations thereof described in the specification, and one or more other It should be understood that this does not preclude the possibility of addition or presence of features or numbers, steps, operations, components, parts, or combinations thereof.

In addition, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

The present invention is an electromagnetic and electrostatic spray hybrid subway station fine dust purification device, and includes metal particles as shown in FIG. 1 showing a schematic diagram of an electromagnetic and electrostatic spray hybrid subway station fine dust purification device according to a preferred embodiment of the present invention A device for purifying polluted air is provided.

An inlet 130 through which polluted air of the underground station is introduced; is provided at a predetermined position and the ceiling 150 is provided with an outlet 140 through which the purified air is discharged; an electromagnetic device 200 provided in the inner space of the body 100; an electrostatic spraying device 300 provided at the rear end of the electromagnetic device 200; and a primary conduit 210 through which the contaminated air passes in the central portion of the electromagnetic device, and a plurality of electromagnet units 220 are formed on the same side of the primary conduit. It may be an electromagnetic and electrostatic spray hybrid fine dust purification device in subway stations that primarily removes iron in the polluted air.

An outlet fan 141 for discharging the purified air through the flow from the fine dust purification device may be formed at the end of the outlet formed at the top of the ceiling.

The outlet formed at the top of the ceiling may be partitioned to form a plurality of outlets having partition walls.

When the purified air is discharged from the plurality of outlets in which the partition walls are formed, a more effective air dispersing effect can be obtained.

The ceiling communicates with the rear end of the electrostatic spraying device.

A demister 160 for removing moisture contained in the purified air that has passed through the electrostatic spraying device may be formed between the ceiling and the outlet.

An adsorbent 170 may be formed between the demister and the outlet to remove odors contained in the purified air. The adsorbent is not limited to the material as long as it can adsorb odors such as activated carbon and zeolite, and pollutants such as VOC.

The inner space may be divided into a space.

The divided inner space may be divided into two parts.

The cross-sectional shape of the space portion may be any one of a circular shape, a rectangular shape, a square shape, and a regular hexagon shape.

The space portion may have two rectangular parallelepiped shapes.

A predetermined position of the inlet through which the contaminated air is introduced may be an upper side surface.

Alternatively, it may be formed on the upper side and the lower side.

Alternatively, it may be formed on the upper side, the middle side, and the lower side. Preferably, a plurality of inlets may be formed on the upper side surface.

An inlet fan 131 for forming a flow of the polluted air in the fine dust purification device may be formed at the front end of the inlet.

A pre-filter 132 may be formed at the front end of the inlet to prevent coarse pollutants in the contaminated air from flowing into the fine dust purification device.

The pre-filter may be formed to be easily detachable by a magnetic type.

The cross-sectional shape of the primary pipe may be any one of a circle, a rectangle, a square, or a regular hexagon.

The polluted air introduced through the inlet may move to the lower part of the body along the primary conduit.

In this case, a configuration for increasing the residence time may be added in order to increase the contact efficiency between the contaminated air and the electronic unit formed on the primary conduit.

The electromagnet unit formed on the primary pipe may be formed in a zigzag pattern to increase the residence time of the polluted air.

A first guide vane 211 for forming a flow of the contaminated air may be formed on the primary pipe.

In addition, it may include a permanent magnet device 400 formed at the bottom of the electromagnetic device for secondarily removing iron from the contaminated air from which iron has been primarily removed and for guiding the contaminated air to the electrostatic spraying device. .

The permanent magnet device may communicate with a rear end of the electromagnetic device and a front end of the electrostatic spraying device.

An inflow tank 410 may be formed between the front end of the permanent magnet device and the rear end of the electromagnetic device to form an inflow flow of the contaminated air from which the iron has been primarily removed to the permanent magnet device.

The inflow tank may have a shape for effectively introducing the polluted air into the permanent magnet device by increasing the linear velocity of the polluted air in the form of a correlative narrow structure.

A permanent magnet 420 may be formed on the bottom surface of the permanent magnet device.

One or more baffle plates 430 for increasing the residence time of the polluted air may be formed inside the permanent magnet device.

The baffle plate may serve as a guide vane. The baffle plate may be formed inside the inverse ball magnet device so that the polluted air can more effectively contact the permanent magnet.

The last baffle plate of the permanent magnet device may be formed so that the contaminated air from which iron has been removed secondary to the front end of the electrostatic spraying device can form a flow.

The permanent magnet formed on the bottom surface may be formed in various shapes such as a flat plate, a square column, a wave, a triangular column, and the like.

A magnet outlet 440 may be formed on the bottom side of the permanent magnet device to remove the iron by desorbing the permanent magnet to which the magnetic field is attached from the secondarily contaminated air.

In addition, the electrostatic spraying device is supplied to the inside of one or more secondary conduits 310 as the contaminated air from which iron has been removed secondarily rises, and a first It may include a pipe 320 and one or more first nozzles 330 provided at a predetermined position of the first pipe 320 .

The cross-sectional shape of the secondary pipe may be any one of a circle, a rectangle, a square, or a regular hexagon.

The polluted air introduced through the connection part may move to the upper part of the second section of the body along the secondary conduit.

A plurality of secondary conduits are formed, and each secondary conduit may be partitioned by a partition wall.

The linear velocity of the polluted air passing through the secondary pipe may be 0.1 m/s to 10 m/s.

The linear speed may be preferably 0.5 m/s to 5 m/s, and more preferably 0.8 m/s to 2 m/s.

If it deviates from the above linear velocity, effective electrostatic spray dust collection efficiency cannot be obtained.

Assuming that the secondary conduit is circular, the diameter of the secondary conduit may be 50 mm to 600 mm. Preferably it may be 100 mm to 400 mm, more preferably 150 mm to 300 mm. If the above conditions are deviating, effective electrostatic spraying cannot be formed.

The first pipe may have a tube shape having a water passage through which water can pass therein.

An upper portion of the first pipe may be formed of a non-conductive material capable of preventing a short circuit, and a lower portion of the first pipe may be formed of a conductive material.

The non-conductive material may be a polymer or an inorganic material. Preferably, it may be a polymer material, and more preferably, it may be Teflon.

The first pipe may include a non-conductive first pipe 324 made of a non-conductive material and a first conductive pipe 325 physically connected to a lower portion of the non-conductive material.

A coupling structure for connection may be formed on a lower portion of the non-conductive first pipe and an upper portion of the conductive first pipe.

The coupling configuration may be a thread coupling. A seal may be formed in the coupling portion to prevent leakage of water flowing therein.

The first pipe should be energized by the electrode connected to the '-' lead wire.

Therefore, a conductive conductive line (not shown) for inducing current to the first conductive pipe may be formed inside the non-conductive first pipe. The electrode may be connected to the first conductive pipe through the conductive conductive line.

One or more and four or less of the first nozzles may be formed on the same axis with respect to the first pipe. Preferably, it may be formed of three.

The first nozzle may be sequentially formed in the longitudinal direction.

The forming interval of the first nozzle may be 40 mm to 120 mm with respect to the first pipe.

A first discharge electrode may be formed between the first nozzles formed on the same axis in the longitudinal direction.

Accordingly, the first nozzle and the first discharge electrode may be alternately formed in the first pipe.

In addition, the body part 100 has the electromagnetic device and the permanent magnet device formed in the first region 110 where the inlet through which the contaminated air is introduced,

The electrostatic spraying device is formed in a second region 120 where an outlet for discharging the purified air is formed, and a connection portion 500 may be formed at a lower predetermined position where the first region and the second region come into contact with each other. have.

In the connection part, a connection fan may be additionally formed to smoothly flow the contaminated air through the second zone.

Connection guide vanes for smoothly flowing the contaminated air from the first zone to the second zone may be additionally formed at the front and/or rear ends of the connection part.

In addition, a storage tank 340 for storing water discharged from the electrostatic spraying device to a predetermined depth is formed at the bottom of the second zone, and between the electrostatic spraying device and the storage tank, fine particles in the contaminated air and A collecting tank 350 for collecting the combined droplets; may be formed.

The storage tank may contain fine dust contained in the polluted air in contact with the water sprayed from the electrostatic spraying device.

The storage tank may maintain a predetermined water level, and may additionally receive water from the outside when it deviates from a predetermined water level. can be formed.

A collecting tank 350 may be formed between the front end of the storage tank and the rear end of the electrostatic spraying device to form an inflow flow of the fine dust into the storage tank.

The collection tank may have a shape for removing the contact with the water of the collection tank to effectively introduce the fine dust into the collection tank by increasing the linear velocity of the fine dust combined with the electrostatic spray water in the form of a correlative narrow structure.

In addition, an electrostatic spraying water tank 360 is formed at the top of the second section to supply water to the electrostatic spraying device, and water supplied to the electrostatic spraying water tank is supplied from the storage tank through a circulation pipe 370; It can be used by circulating water through the

The electrostatic spraying water tank may have partition walls corresponding to the number of first pipes of the electrostatic spraying device, and a separate space may be configured.

The configuration of the electrostatic spraying water tank partitioned into the separate space is a configuration for spraying water through the first nozzle configured in the first pipe of the electrostatic spraying device under the same head condition.

Accordingly, a separate flow meter 380 may be formed in each of the divided water tanks of the electrostatic spray water tank.

A UV sterilizer 390 for sterilizing water may be formed on the conduit of the circulation pipe.

A pump for circulating water may be formed on the conduit of the circulation pipe.

In addition, an electrode 322 connected to a '-' lead wire 321 may be provided at a predetermined position inside the first pipe, and a '+' lead wire 323 may be connected to the body part 100 .

In addition, the electromagnet unit includes a rod-shaped electromagnet rod (221); an electric wire 222 wound around the electromagnet rod to form a magnetic field when energized; and a plate-shaped collecting plate 223 at the end of the electromagnet rod to magnetically attach and remove iron in the polluted air, and generate an electromagnetic field through electrical connection and short circuit at both ends of the electric wire. can do.

As above, a specific part of the present invention has been described in detail. For those of ordinary skill in the art, these specific descriptions are only preferred embodiments, and the scope of the present invention is not limited thereby, It is obvious to those skilled in the art that various changes and modifications can be made within the scope and spirit of the present invention, and it is natural that such variations and modifications fall within the scope of the appended claims.

100: body
110: Area 1
120: Area 2
130: entrance
131: inlet fan
132: pre-filter
140: exit
150: ceiling
160: Demister
170: activated carbon adsorbent
141: outlet fan
200: electromagnetic device
210: 1st conduit
211: first guide vane
220: electromagnet unit
221: electromagnet bar
222: electric wire
300: electrostatic spraying device
310: secondary conduit
320: first pipe
321: '-' lead wire
322: electrode
323: '+' lead wire
324: non-conductive first pipe
325: conductive first pipe
330: first nozzle
340: first discharge electrode
340: reservoir
350: collection tank
360: electrostatic spray water tank
370: circulation pipe
380: flow meter
390: UV sterilizer
400: permanent magnet device
410: inflow tank
420: permanent magnet
430: baffle plate
440: magnet outlet
500: connection
600: control panel

Claims (8)

An inlet 130 through which polluted air of the underground station is introduced; is provided at a predetermined position and the ceiling 150 is provided with an outlet 140 through which the purified air is discharged;
an electromagnetic device 200 provided in the inner space of the body 100;
an electrostatic spraying device 300 provided at a rear end of the electromagnetic device 200; and
A primary conduit 210 through which the polluted air passes is formed in the central portion of the electromagnetic device,
Including; and a plurality of electromagnet units 220 formed on the same side of the primary conduit.
An electromagnetic and electrostatic spray hybrid subway station fine dust purification device that primarily removes iron in the polluted air by the electromagnet unit.
According to claim 1,
Electromagnetic and electrostatic spraying including a permanent magnet device 400 formed in the lower part of the electromagnetic device for secondarily removing iron from the contaminated air from which iron has been primarily removed and for guiding the contaminated air to the electrostatic spraying device A fine dust purification device in a hybrid subway station.
3. The method of claim 2,
The electrostatic spraying device is supplied to the inside of one or more secondary conduits 310 while the contaminated air from which iron has been removed secondarily rises,
Electromagnetic and electrostatic spraying including a first pipe 320 on a central axis based on the cross section of the secondary pipe, and one or more first nozzles 330 provided at a predetermined position of the first pipe 320 A fine dust purification device in a hybrid subway station.
According to claim 1,
The body part 100 has the electromagnetic device and the permanent magnet device formed in the first zone 110 where the inlet through which the polluted air is introduced,
The electrostatic spraying device is formed in a second zone 120 having an outlet through which the purified air is discharged, and a connection part 500 is formed at a lower predetermined position in contact with the first zone and the second zone. An electrostatic spray hybrid subway station fine dust purification device.
5. The method of claim 4,
A storage tank 340 for storing the water discharged from the electrostatic spraying device to a predetermined depth is formed at the bottom of the second zone, and
An electromagnetic and electrostatic spray hybrid subway station fine dust purification device is formed between the electrostatic spraying device and the storage tank for collecting the droplets combined with the fine particles in the polluted air.
6. The method of claim 5,
An electrostatic spraying water tank 360 is formed at the top of the second zone to supply water to the electrostatic spraying device,
The water supplied to the electrostatic spray water tank is used by circulating water from the storage tank through a circulation pipe (370); an electromagnetic and electrostatic spray hybrid subway station fine dust purification device.
4. The method of claim 3,
Electromagnetic and electrostatic, characterized in that the electrode 322 connected to the '-' lead wire 321 is provided at a predetermined position inside the first pipe, and the body part 100 is connected to the '+' lead wire 323 Fine dust purification device in a mist hybrid subway station.
According to claim 1,
The electromagnet unit includes a bar-shaped electromagnet rod (221);
an electric wire 222 wound around the electromagnet rod to form a magnetic field when energized; and
The end of the electromagnet rod includes a plate-shaped collecting plate 223 to magnetically attach and remove iron in the polluted air;
An electromagnetic and electrostatic spray hybrid subway station fine dust purification device that generates an electromagnetic field through electrical connection and short circuit at both ends of the electric wire.

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