KR100837964B1 - Exhaust apparatus of painting system - Google Patents

Abstract

An exhaust device for an automotive painting system is provided to filter pollutants contained in the exhaust air, and to prevent the discharge of the pollutants into the air. An exhaust device for an automotive painting system comprises: an exhaust duct(62) for guiding air passed through a painting booth outside; an exhaust fan for generating a ventilation force within the exhaust duct; and a filter section installed in the exhaust duct, for removing pollutants in the air that passes through the exhaust duct. The filter section includes a water supply for supplying water to the exhaust duct, a filter plate for guiding the passage of water from the water supply and for transmitting air of the exhaust duct, and a water drainage part(90).

Description

Exhaust apparatus of painting system

1 is a configuration diagram schematically showing a painting system of a vehicle according to the prior art,

2 is a schematic view showing a painting system according to an embodiment of the present invention;

3 is a perspective view of the exhaust device shown in FIG.

4 is a cut-away perspective view of the inside of the exhaust apparatus illustrated in FIG. 3;

5 is an enlarged perspective view of the filter plate illustrated in FIG. 4;

6 is a cross-sectional view showing the inside of the exhaust apparatus shown in FIG. 4;

7 is an enlarged view of a portion A of FIG. 6.

<Explanation of symbols on main parts of the drawings>

50: air conditioner 52: paint booth

54: washing part 56: sedimentation tank

60: exhaust device 62: exhaust duct

64: exhaust fan 64a: first horizontal portion

64b: second horizontal portion 70: water supply portion

71: water supply pipe 72: the second water supply tank

73: overflow water supply pipe 74: 1st water supply tank

75: water tank cover 80: filter plate

81: 1st edition 82: 2nd edition

83: air hole 84: guide projection

90: drain part 91: second drain water tank

92: second drain pipe 93: first drain tank

94: first drain pipe 95: overflow drain pipe

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exhaust system of a painting system. In particular, by installing filtering means for removing contaminants in the air in an exhaust duct for discharging air from the coating booth, the coating of pollutants into the atmosphere can be minimized. It relates to the exhaust of the system.

In general, the painting process of the vehicle is carried out to prevent corrosion of the material and to improve the aesthetics, and is composed of a pretreatment for the purpose of rust prevention, an electrodeposition process and an intermediate process for the purpose of aesthetics, and a top coat process.

1 is a configuration diagram schematically showing a painting system of a vehicle according to the prior art.

As shown in FIG. 1, the painting system of a vehicle according to the related art has an air conditioner 2 for appropriately controlling the temperature and humidity of the outside air and supplying air to the vehicle body by receiving air from the air conditioner 2. The coating booth 4 to apply | coat, the washing | cleaning part 6 which isolate | separates the paint and air which were not attached to the said vehicle body in the said painting booth 4, and the precipitation tank 8 which precipitates the paint separated from the said washing | cleaning part 6 ), And an exhaust device 10 for discharging the air separated from the cleaning unit 6.

The settling tank 8 is a tank for storing the circulating water introduced from the washing unit 6 and agglomerating the paint in the circulating water into sludge by chemicals, and the settling tank 8 is water and sludge. It is connected to the sludge separator 9 for separating.

The exhaust device 10 is connected to the cleaning unit 6, an exhaust duct 12 for guiding air separated from paint and water into the atmosphere, and installed in the exhaust duct 12 to generate a blowing force. The exhaust fan 14 is comprised.

In the painting apparatus of the vehicle configured as described above, outside air is supplied to the painting booth 4 through the air conditioner 2, and the painting booth 4 applies the paint to the vehicle body.

The cleaning unit 6 separates the paint and air in the paint booth 4, the paint is mixed with the circulating water and introduced into the settling tank 8, and the air is discharged into the atmosphere through the exhaust device 10. Let's do it.

However, in the coating system of the vehicle according to the prior art, since the paint and the air are not completely separated from the cleaning unit 6, the paint contained in the air is released into the atmosphere through the exhaust device 10 to remove odors. Generation and pollution of the air environment.

It is an object of the present invention to provide an exhaust system of a coating system that can filter pollutants in exhaust air and prevent the release of pollutants into the atmosphere.

The present invention provides an exhaust duct for guiding air that has passed through the paint booth to the outside, an exhaust fan for generating a blowing force in the exhaust duct, and a contaminant in the air provided in the exhaust duct to pass through the exhaust duct. Provided is an exhaust system of a coating system comprising filtering means for removal.

The filtering means includes supplying water into the exhaust duct to collect contaminants in the air passing through the exhaust duct by the water.

The filtering means may include a water supply unit for supplying water into the exhaust duct, a filter plate configured to guide a flow path of water supplied from the water supply unit, and allow the air in the exhaust duct to pass therethrough, and a drain portion for draining the water passing through the filter plate. Include.

The filter plate includes one disposed obliquely in the exhaust duct.

The filter plate includes a plurality of air holes formed to allow air in the exhaust duct to pass therethrough.

The filter plate includes a plurality of guide protrusions protruding to guide the flow path of the water supplied from the water supply unit.

The plurality of guide protrusions may include one or more guide protrusions alternately arranged in a vertical direction.

The water supply unit includes a water supply pipe for supplying water from the outside, and a water supply tank for storing the water supplied from the water supply pipe and supplying the water to the filter plate.

The filter plate includes an inlet through which water is introduced from the water supply tank, and the inlet is formed to be positioned higher than an upper end of the water supply tank.

The exhaust duct is bent to form at least one or more horizontal portions, and the filter plate includes an inclined portion of the horizontal portion, respectively.

The filter plate includes a first filtration plate for removing contaminants of air introduced into the exhaust duct from the coating booth, and a second filtration plate for removing contaminants of air passing through the first filtration plate. The water passed through includes the supply to the top of the first filtration plate.

The water supply unit includes a water supply pipe for supplying water from the outside, a second water supply tank for storing water supplied from the water supply pipe, and supplying water to the second filtration plate, and the water level of the second water supply tank is higher than a predetermined level. An overflow water supply pipe for supplying water in the second water supply tank to the first filtration plate, and a first water supply tank for storing water supplied from the overflow water supply pipe and supplying water to the first filtration plate.

The drainage portion includes a second drainage tank for draining the water passing through the second filtration plate, a second drainage pipe for supplying water stored in the second drainage tank to the first water supply tank, and water passing through the first filtration plate. A first drainage tank for storing the first drainage pipe, a first drainage pipe for guiding water stored in the first drainage tank to the outside, and the water in the first water supply tank when the water level of the first water supply tank is higher than a predetermined level; An overflow drain leading to the pipe.

The coating booth includes a cleaning part for separating contaminants and air, and the exhaust duct is connected to the cleaning part, and includes one configured to guide air from the cleaning part to the outside.

The first drain pipe includes that connected to the cleaning unit.

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

Figure 2 is a schematic view showing a painting system according to an embodiment of the present invention, Figure 3 is a perspective view of the exhaust device shown in Figure 2, Figure 4 is an interior of the exhaust device shown in Figure 3 5 is an enlarged perspective view of the filter plate illustrated in FIG. 4, FIG. 6 is a cross-sectional view illustrating the inside of the exhaust apparatus illustrated in FIG. 4, and FIG. 7 is an enlarged portion A of FIG. 6. It is also.

As shown in FIG. 2, the painting system according to an exemplary embodiment of the present invention has an air conditioner 50 for supplying air by appropriately adjusting the temperature and humidity of the outside air, and the air is supplied from the air conditioner 50 to the vehicle body. A painting booth 52 for applying paint, a washing section 54 for separating air and contaminants, such as a paint unattached to the vehicle body, in the painting booth 52, and a paint separated from the cleaning section 54. And a settling tank 56 to settle the air, and an exhaust device 60 for discharging the air separated from the washing unit 54.

The exhaust device 60 includes an exhaust duct 62 for guiding the air passing through the paint booth 52 to the outside, an exhaust fan 64 for generating a blowing force in the exhaust duct 62, and It is provided in the exhaust duct 62, and includes filtering means for removing contaminants in the air passing through the exhaust duct 62.

The exhaust duct 62 is connected to the cleaning unit 54 to guide the air from the cleaning unit 54 to the outside.

On the other hand, at least one filtering means is installed in the exhaust duct 62 to supply water into the exhaust duct 62, and is configured to collect the paint in the air passing through the exhaust duct 62 by the water. .

The filtering means may include a water supply unit 70 for supplying water into the exhaust duct 62 and a filter plate configured to guide a flow path of water supplied from the water supply unit 70 and allow air of the exhaust duct 62 to pass therethrough. 80 and a drain 90 through which the water passing through the filter plate 80 is drained.

The filter plate 80 is a first filter plate 81 for primarily filtering the paint in the air flowing into the exhaust duct 62 from the coating booth 52, and the air passed through the first filter plate 81 It consists of the 2nd filtration board 82 which filters secondary paints secondaryly.

That is, the first filtration plate 81 is installed on the paint booth 52 side in the exhaust duct 62, and the second filtration plate 82 is installed behind the first filtration plate 81. Do.

Here, the exhaust duct 62 is described as being bent to have two first and second horizontal parts 62a and 62b, and the first and second filtration plates 81 and 82 are the first, The two horizontal portions 62a and 62b are inclined respectively.

As shown in FIG. 5, the first and second filtration plates 81 and 82 are formed with a plurality of air holes 83 to allow air in the exhaust duct 62 to pass. A plurality of guide protrusions 84 protrude to guide the flow path of the water to be supplied.

The air hole 83 is formed in a portion where the guide protrusion 84 is not formed, it will be described by being limited to the slit shape formed in a plurality of up and down directions.

The plurality of guide protrusions 84 may protrude from the surfaces of the first and second filtration plates 81 and 82, and the guide protrusions 84 adjacent to each other in the up and down directions may be alternately arranged to slow the flow rate. .

On the other hand, the water supply unit 70 is configured to supply water to the first and second filter plates 81 and 82, it is also possible to supply to the first and second filter plates 81 and 82 at the same time, individually It is also possible to supply.

Here, the water supply unit 70 is configured to supply water from the outside to the second filtration plate 82, and the water passing through the second filtration plate 82 is supplied to the first filtration plate 81 again. Will be explained.

That is, the water supply unit 70, as shown in Figure 4 and 6, the water supply pipe 71 for supplying water from the outside, and temporarily stores the water supplied from the water supply pipe 71 and the second filter plate ( 82) to supply the second water tank 72 and the water in the second water tank 72 to the first filtration plate 81 when the water level of the second water tank 72 is above a certain level. An overflow water supply pipe 73 and a first water supply tank 74 that temporarily stores water supplied from the overflow water supply pipe 73 and supplies the water to the first filtration plate 81.

As shown in FIGS. 5 and 7, the second water supply tank 72 has a second main storage unit 72a in which the water supply pipe 71 is connected to the upper portion, and water supplied from the water supply pipe 71 is temporarily stored. ) And a second auxiliary storage unit 72b in which water overflowed from the second main storage unit 72a is temporarily stored when the water level of the second main storage unit 72a is higher than or equal to a predetermined level.

One side of the second main storage unit 72a is formed in communication with a second water supply port 82a formed at an upper end of the second filtration plate 82, and the second water supply port 82a is the second main It is preferably formed to be located higher than the upper end of the storage (72a).

The second auxiliary storage part 72b is formed in communication with the overflow water supply pipe 73.

In addition, the first water supply tank 74 is a water level of the first main storage (74a) and the first main storage (74a) for temporarily storing the water supplied from the overflow water supply pipe (73) In case of abnormality, the first auxiliary storage part 74b may be configured to temporarily store overflowing water from the first main storage part 74a.

One side of the first main storage part 74a is formed to communicate with a water supply port 81a formed at an upper end of the first filtration plate 81, and the water supply port 81a is the second main storage part 74a. It is preferably formed to be located above the top of the.

An overflow drain pipe, which will be described later, communicates with the first auxiliary storage unit 72b.

In addition, an upper portion of the first and second water supply tanks 71 and 74 may include a water tank cover to prevent water from the first and second water supply tanks 71 and 74 from leaking out of the exhaust duct 62. 75) is installed. The water tank cover 75 is formed to shield the upper portion of the first and second water supply tanks 71 and 74 and the exhaust duct 62.

On the other hand, the drainage portion 90 may drain each of the water passing through the first and second filtration plates 81 and 82, and may be collected and drained at once.

Here, the drainage portion 90 supplies the water drained from the second filtration plate 82 to the first filtration plate 81, and the water drained from the first filtration plate 81 is formed of the coating booth 52. It demonstrates only to drain to the washing | cleaning part 54. FIG.

That is, the drainage part 90 temporarily stores the water passing through the second filtration plate 82 and drains the second drainage water tank 91 and the water stored in the second drainage water tank 91. The second drain pipe 92 to supply to the water supply tank 74, the second drain tank 93 for temporarily storing the water passing through the first filter plate 81, and the first drain tank 93 The first drain pipe 94 for guiding water to the outside and the water in the first water supply tank 74 is guided to the first drain pipe 94 when the water level of the first water supply tank 74 is above a predetermined level. An overflow drain pipe 95 is included.

The overflow drain pipe 95 is connected to the first drain pipe 94, and the first drain pipe 94 is connected to the cleaning part 54.

The first and second drainage tanks 91 and 93 are disposed below the first and second filtration plates 81 and 82 in the exhaust duct 62 so as to be disposed in the exhaust duct 62. The first and second inclination plate parts 91a and 93a for guiding the water having passed through the side to one side, and the first and second storage parts for temporarily storing the water guided by the first and the inclination plate parts 91a and 93a. It consists of 91b and 93b.

Referring to the operation of the exhaust system of the coating system configured as described above are as follows.

When the air passing through the cleaning section 54 of the coating booth 52 is discharged into the exhaust duct 62, external water is supplied to the second water supply tank 72 through the water supply pipe 71.

As shown in FIG. 6, when a predetermined amount of water is filled in the second main storage unit 72a of the second water supply tank 72, the second inlet 82a of the second filtration plate 82 may be used. It flows into the two filtration plates 82.

At this time, the air blown by the blowing force of the exhaust fan 64 passes through the air hole 83 of the second filter plate 82, and the water film formed by the water flowing through the second filter plate 82 Will pass.

Therefore, contaminants in the air are mixed with water to flow along the second filtration plate 82, and only the air from which the contaminants have been removed is discharged to the outside through the exhaust duct 62.

Water containing contaminants flowing down the second filtration plate 82 is temporarily stored in the second drain water tank 91 and then supplied to the first water supply tank 74 through the second drain pipe 92. do.

On the other hand, when the water level in the second main storage unit 72a of the second water supply tank 72 is above a certain level, the overflowed water passes through the second auxiliary storage unit 72b and the overflow water supply pipe 73. The first water supply tank 74 is supplied.

That is, water is supplied to the first water supply tank 74 through the second drain pipe 92 and the overflow water supply pipe 73 to be temporarily stored, and a predetermined amount of water is stored in the first main storage 74a. When filled, it flows along the first filtration plate 81 through the first inlet 81a of the first filtration plate 81.

At this time, the air discharged by the blowing force of the exhaust fan 64 passes through the air hole 83 of the first filter plate 81 and passes through the water film formed in the first filter plate 81.

Thus, contaminants in the air are mixed with water and flow down along the first filtration plate 81.

After the water containing the contaminants flowing down along the first filtration plate 81 is temporarily stored in the first drain tank 93, the water is introduced into the cleaning unit 54 through the first drain pipe 94. After being sent to the settling tank 56, the chemical treatment is separated into sludge.

On the other hand, the air from which the contaminants are removed while passing through the first filter plate 81 is blown by the blowing pressure of the exhaust fan 64 to pass again through the second filter plate 82 located behind.

Therefore, since the air filtered in the first filter plate 81 is filtered once more in the second filter plate 82, more effective filtration can be achieved.

On the other hand, when the water level in the first main storage unit 74a of the first water supply tank 74 is above a certain level, the water overflowing the first main storage unit 74a is the first auxiliary storage unit 74b. It is discharged to the overflow drain pipe 95 through. The water discharged into the overflow drain pipe 95 flows into the cleaning part 54.

In addition, since the filtration process is performed twice with one feed water, the cost can be reduced.

In addition, since the water used for filtration in the exhaust duct 62 is sent to the washing section 54 and the settling tank 56, the sludge is separated from the settling tank 56, and then circulated and reused. Do.

The exhaust system of the coating system according to the present invention provides a filtration means for removing contaminants in the air in an exhaust duct for discharging air from the coating booth, thereby minimizing the emission of contaminants into the atmosphere and increasing the atmosphere. It is effective to cope with environmental regulations.

In addition, the filtering means is configured to supply water into the exhaust duct, to collect contaminants in the air passing through the exhaust duct by the water, so that no consumable material such as a separate filter is used and thus semi-permanent use is possible. In addition, the water used has the advantage that can be reused by circulating after separating the sludge from the settling tank.

In addition, since it is configured to perform two filtration processes with only one feed water, there is an advantage that the filtration effect can be increased while reducing the cost.

In addition, even if the flame propagates into the exhaust duct when a fire occurs in the painting booth, there is an advantage that the fire diffusion can be prevented by the water film formed on the filter plate.

Claims (15)

An exhaust duct for guiding the air passing through the paint booth to the outside; An exhaust fan for generating a blowing force in the exhaust duct; A filtering means installed in the exhaust duct to remove contaminants in the air passing through the exhaust duct; The filtering means may include a water supply unit for supplying water into the exhaust duct, a filter plate configured to guide a flow path of water supplied from the water supply unit, and allow the air in the exhaust duct to pass therethrough, and a drain portion for draining the water passing through the filter plate. Include, The exhaust duct is bent to form at least one or more horizontal portions, the exhaust plate of the coating system comprising the filter plate is installed inclined in each of the horizontal portion. The method according to claim 1, And the filtering means supplies water into the exhaust duct to collect contaminants in the air passing through the exhaust duct with water. delete The method according to claim 1, And the filter plate is disposed inclined in the exhaust duct. The method according to claim 1, The filter plate of the exhaust system of the coating system comprising a plurality of air holes are formed to pass the air in the exhaust duct. The method according to claim 1, The filter plate of the exhaust system of the coating system comprising a plurality of guide protrusions protruding to guide the flow path of the water supplied from the water supply. The method according to claim 6, The plurality of guide protrusions are exhaust device of the coating system comprising a plurality of guide projections adjacent to each other in the vertical direction alternately arranged. The method according to claim 1, The water supply unit exhaust system of the coating system including a water supply pipe for supplying water from the outside, and a water supply tank for storing the water supplied from the water supply pipe to supply to the filter plate. The method according to claim 8, The filter plate is formed with an inlet through which water is introduced from the water supply tank, wherein the inlet is formed to be located above the top of the water supply tank exhaust system of the coating system. delete The method according to claim 1, The filter plate includes a first filtration plate for removing contaminants of air introduced into the exhaust duct from the coating booth, and a second filtration plate for removing contaminants of air passing through the first filtration plate. And the water passing through the second filter plate is supplied to an upper portion of the first filter plate. The method according to claim 11, The water supply unit includes a water supply pipe for supplying water from the outside, a second water supply tank for storing water supplied from the water supply pipe, and supplying water to the second filtration plate, and the water level of the second water supply tank is higher than a predetermined level. An overflow water supply pipe for supplying water in the second water supply tank to the first filter plate, and a first water supply tank for storing water supplied from the overflow water supply pipe and supplying water to the first filtration plate. . The method according to claim 12, The drainage portion includes a second drainage tank for draining the water passing through the second filtration plate, a second drainage pipe for supplying water stored in the second drainage tank to the first water supply tank, and water passing through the first filtration plate. A first drainage tank for storing the first drainage pipe, a first drainage pipe for guiding water stored in the first drainage tank to the outside, and the water in the first water supply tank when the water level of the first water supply tank is higher than a predetermined level; Exhaust system of coating system including overflow drain pipe leading to piping. The method according to claim 13, The coating booth includes a cleaning unit for separating contaminants and air, The exhaust duct is connected to the cleaning unit and the exhaust system of the coating system including a formed to guide the air from the cleaning unit to the outside. The method according to claim 14, And the first drain pipe is connected to the cleaning part.

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