KR20110105444A - Paint device for vehicle - Google Patents

Abstract

The present invention includes a paint booth (10) having a top case (16) through which the clean air is introduced into the ceiling, and a bottom case (11) through which contaminated air is discharged and forming a painting space for a vehicle; An exhaust duct 20 which communicates with the lower case 11 and the first exhaust filter 30 and serves as a discharge passage for polluted air; A first exhaust filter 30 that primarily filters large dust of the contaminated air introduced into the exhaust duct 20; A second exhaust filter (40) provided downstream from the first exhaust filter (30) to secondly filter dust contained in the polluted air passing through the first exhaust filter (30); An activated carbon adsorption device (50) provided downstream of the second exhaust filter (40) to filter out volatile organic compounds of contaminated air passing through the second exhaust filter (40); A first circulation pipe (110) forming a passage for supplying the purified air discharged from the activated carbon adsorption device (50) to the upper case (16); An exhaust fan 120 which sucks the purified air through the activated carbon adsorption device 50 and pumps it to the downstream 110a of the first circulation pipe 110 or the external discharge pipe 190; Exhaust gas and activated carbon, characterized in that it comprises a; control valve 130 for controlling the flow in the direction of the downstream 110a and the external discharge pipe 190 of the first circulation pipe 110 from the exhaust fan 120 The present invention relates to an automobile coating device for recycling waste gas generated during regeneration.

Description

Painting device for automobile that recycles waste gas generated from exhaust gas and activated carbon regeneration {Paint Device For Vehicle}

The present invention relates to an automobile coating apparatus for recycling waste gas generated during exhaust gas and activated carbon regeneration.

In general, the exhaust gas purification device of the automobile coating system is to purify and remove the gas generated during the painting process of the vehicle to prevent environmental pollution due to the gas generated during the painting process, the configuration is to remove foreign substances in the exhaust gas It consists of a plate filter, an activated carbon filter which removes foreign substances not removed by the plate filter, adsorbs and removes volatile organic compounds contained in the exhaust gas, and an exhaust fan forcibly discharging the purified gas.

Here, the activated carbon filter is the upper end is sealed by the upper cap of the plate-shaped, the lower end is sealed by the donut-shaped lower cap and formed the activated carbon storage space therein, activated carbon is filled in the storage space of the mesh cylinder, and It is made of a pocket filter which is bound to the lower cap of the net tube by a fastening means and is centered through the guide plate to be slidably coupled to the filter chamber and the inside of the net tube and the inlet is bound to the lower cap by the guide plate. Activated charcoal filter was used after a certain time to replace the activated carbon filled in the bag filter and the storage space of the net bucket.

However, the activated carbon exchanged as described above has a problem such that the maintenance cost of the purification device is high and its disposal is not easy because of its high price, and in particular, there is a risk of explosion during incineration disposal.

In addition, the conventional coating apparatus has a problem that the fuel cost is high and the thermal efficiency is deteriorated because the recirculation system is not introduced, and the heated air is not recycled and the new outside air is sucked in and used for heating.

The present invention can utilize the waste gas by re-entering the purified air from the adsorption device into the paint booth if necessary, and recycling the hot air generated by catalytic oxidation for recycling activated carbon into the hot air required in the drying process after coating. The present invention relates to an environmentally friendly automobile paint booth.

In order to achieve the object of the present invention, the coating apparatus for automobiles for recycling the exhaust gas according to the present invention is provided with an upper case 16 into which the purified air is introduced into the ceiling, and a lower case 11 through which contaminated air is discharged. A paint booth (10) provided with a paint space for forming a vehicle;

An exhaust duct 20 which communicates with the lower case 11 and the first exhaust filter 30 and serves as a discharge passage for polluted air;

A first exhaust filter 30 that primarily filters large dust of the contaminated air introduced into the exhaust duct 20;

A second exhaust filter (40) provided downstream from the first exhaust filter (30) to secondly filter dust contained in the polluted air passing through the first exhaust filter (30);

An activated carbon adsorption device (50) provided downstream of the second exhaust filter (40) to filter out volatile organic compounds of contaminated air passing through the second exhaust filter (40);

A first circulation pipe (110) forming a passage for supplying the purified air discharged from the activated carbon adsorption device (50) to the upper case (16);

An exhaust fan 120 which sucks the purified air through the activated carbon adsorption device 50 and pumps it to the downstream 110a of the first circulation pipe 110 or the external discharge pipe 190;

And a control valve 130 for controlling the flow of the exhaust fan 120 in the direction of the downstream 110a of the first circulation pipe 110 and the external discharge pipe 190.

According to the present invention, the problems of the prior art are solved, and if necessary, the purified air from the adsorption device is recycled by re-entering into the paint booth, and the hot air generated in the catalytic oxidation reaction for activated carbon recycling is required in the drying process after coating. An eco-friendly automotive paint booth is provided that can utilize waste gas by recycling with hot air.

1 is a block diagram of an automobile coating apparatus for recycling waste gas generated when exhaust gas and activated carbon are recycled according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, a coating device for an automobile for recycling waste gas generated during exhaust gas and activated carbon regeneration according to an embodiment of the present invention will be described in detail. 1 is a block diagram of an automobile coating apparatus for recycling waste gas generated during exhaust gas and activated carbon regeneration according to an embodiment of the present invention.

As shown in FIG. 1, an automobile coating apparatus for recycling waste gas generated during exhaust gas and activated carbon regeneration according to an embodiment of the present invention includes a paint booth 10, an exhaust duct 20, and a first exhaust filter ( 30, the second exhaust filter 40, the activated carbon adsorption device 50, the first circulation pipe 110, the exhaust fan 120 and the control valve 130 is configured.

As shown in FIG. 1, the paint booth 10 is provided with an upper case 16 through which a purge air is introduced into the ceiling, and a lower case 11 through which contaminated air is discharged. Form. The exhaust duct 20 communicates with the lower case 11 and the first exhaust filter 30 and becomes a discharge passage of contaminated air.

As shown in FIG. 1, the first exhaust filter 30 primarily filters large dust of contaminated air introduced into the exhaust duct 20. The second exhaust filter 40 is disposed downstream of the first exhaust filter 30 to secondarily filter dust contained in the contaminated air passing through the first exhaust filter 30. The activated carbon adsorption device 50 is provided downstream of the second exhaust filter 40 to filter out volatile organic compounds of contaminated air passing through the second exhaust filter 40.

As shown in FIG. 1, the first circulation pipe 110 forms a passage for supplying the purified air discharged from the activated carbon adsorption device 50 to the upper case 16. The exhaust fan 120 sucks the purified air through the activated carbon adsorption device 50 and pumps the purified air to the downstream 110a or the external discharge pipe 190 of the first circulation pipe 110. The control valve 130 controls the flow in the direction of the downstream 110a and the external discharge pipe 190 of the first circulation pipe 110 from the exhaust fan 120.

As shown in FIG. 1, an automobile coating apparatus for recycling waste gas generated during exhaust gas and activated carbon regeneration according to an exemplary embodiment of the present disclosure may be configured to detect an internal pressure of the paint booth 10 to control a controller (not shown). It is preferable that the pressure sensor S further comprises a. The controller opens the flow in the direction of the downstream 110a of the first circulation pipe 110 when the internal pressure of the paint booth 10 is less than the set value. When the internal pressure of the paint booth 10 exceeds a set value, the controller closes the flow in the downstream 110a direction of the first circulation pipe 110 and opens the flow in the external discharge pipe 190.

As shown in FIG. 1, an automobile coating apparatus for recycling waste gas generated during exhaust gas and activated carbon regeneration according to an embodiment of the present invention is located between a control valve 130 and the upper case 16. It is preferable to further include a flow amount adjusting device 140 for adjusting the flow amount of the purified air. The flow rate adjusting device 140 is a concept including a well-known adjusting device installed in the duct to adjust the opening area of the duct.

As shown in FIG. 1, an automobile coating apparatus for recycling waste gas generated during exhaust gas and activated carbon regeneration according to an embodiment of the present invention includes a hot air supply unit (not shown), an extension duct 60, and a first The blower 70, the waste gas preheater 80, the waste gas heating furnace 90, the catalytic oxidation device 100, the second circulation pipe 200, and the third filter 220 may be further included.

As shown in FIG. 1, the hot air supply means (not shown) applies hot air including water vapor at 80 to 150 ° C. to the adsorption device 50. The extension duct 60 connects the downstream end of the adsorption device 50 and the first blower 70. The first blower 70 pumps the volatile organic compounds desorbed by the hot air into the waste gas preheater 80.

As shown in FIG. 1, the waste gas preheater 80 preheats air containing volatile organic compounds introduced and introduced downstream of the first blower 70. The waste gas heating furnace 90 heats air containing volatile organic compounds introduced through the waste gas preheater 80 to 150 to 300 ° C.

As shown in FIG. 1, the catalytic oxidation apparatus 100 converts volatile organic compounds of air introduced through a waste gas heating furnace 90 into catalysts and converts them into water and carbon dioxide. The second circulation pipe 200 transmits the purified hot air through the catalytic oxidation device 100 to the upper case 16.

As shown in FIG. 1, in an automobile coating apparatus for recycling waste gas generated during exhaust gas and activated carbon regeneration according to an embodiment of the present invention, a third filter 220 may be disposed in the second circulation pipe 200. It is further provided, it is preferable that the second outside air supply pipe 210 for supplying the outside air to the catalytic oxidation device 100 is further provided.

As illustrated in FIG. 1, the second circulation pipe 200 passes through the waste gas preheater 80 so that the air inside the second circulation pipe 200 may exchange heat with the interior of the waste gas preheater 80.

Hereinafter will be described the operation of the coating device for automobiles for recycling the waste gas generated when the exhaust gas and activated carbon regeneration according to an embodiment of the present invention.

1) Painting work

The repairing of the sheet metal and sanding work and the taping work of the parts to be painted are parked in the paint booth 10 to complete the preparation process of the painting work. Worker turns on spray switch (SPRAY S / W) in electric control box (B) and operates exhaust fan (EXHAUST FAN, 120) to perform painting work.

When the painting work is started, contaminants (dust, odor) are generated inside the paint booth 10. This pollutant is filtered by the exhaust fan 120 through the lower case 11 and the exhaust duct 20 together with air to filter dust and odors from the first exhaust filter (carbon fibrous filter 30) and to exhaust the second exhaust. Remove dust from the filter (40).

Exhaust gas with primary dust and odors removed GAS is discharged to the atmosphere as air within the emission limits specified in the Environmental Conservation Act through the adsorption system (50, activated carbon), a secondary odor removal system. Exhaust gas within the discharge limit standard discharged to the atmosphere is automatically controlled by PAINT BOOTH (10) Internal pressure control system (3-point type automatic valve method.When the internal pressure rises according to the signal of the internal pressure sensor, it is closed. Device) is recycled as supply air to the PAINT BOOTH through the ceiling filter installed inside the upper case (16).

2) Drying work

After the painting work, the repair vehicle is dried and heat treated using drying media (heat and air) to shorten the characteristics of paint and drying time.

PAINT BOOTH, installed at the 1-2 grade auto repair shop, is designated as a discharge facility under the Environmental Conservation Act, and must comply with the emission allowance standards of the exhaust gas. In order to maximize the utilization of the land (area), the 1-2 grade auto repair shops shorten the replacement cycle of activated carbon in order to minimize the size of most prevention facilities (activated adsorption system, 50) and to comply with the emission limit of exhaust gas. Or start an activated carbon regeneration device.

In the regeneration process of activated carbon, contaminants (odors) adsorbed on activated carbon are desorbed using wet air (steam) and pressure, which are desorption conditions of activated carbon. Contaminants (odors) desorbed by humidified air (steam) and pressure are converted by the blower 70 to the conditions necessary for the oxidation reaction of the low temperature catalyst in the waste GAS heating furnace 90 via the waste gas preheater 80. Let's do it. The catalytic oxidation device 100 oxidizes (decomposes odors) into heat and moisture and releases it into the atmosphere within the emission limit.

Tertiary exhaust through the waste GAS preheater 80 to replace the catalytic oxidation reaction heat of the exhaust gas emitted to the atmosphere with dry media (heat and air) for shortening the drying time and characteristics of PAINT described above. The filter 220 removes contaminants (dust) from the ceiling filter of the upper case 16 and recycles the drying medium (heat, air) necessary for drying the PAINT.

※ enclosure

Ⓐ In case of using water soluble PAINT to prevent environmental pollution, it can be used as water soluble PAINT BOOTH by operating heat of catalytic oxidation and EXHAUST FAN 120 at the same time.

Ⓑ If the inside work temperature (25 ℃ ~ 30 ℃) of PAINT BOOT for winter painting work is operated at ⓐ, it can be kept sufficiently.

LIST OF PARTS NO PART OF NAME SPECIFICATION NO PART OF NAME SPECIFICATION One Paint booth 4.5M × 7.5M × 2.5MH 10 Regulator AIR CYLINDER type 2 Upper case 4.5M × 7.5M × 0.4MH 11  air blower 20㎥ * 100mmAg-5HP 3 Lower case 4.5M × 7.5M × 0.4MH 12 Waste GAS Preheater 100 ℃ ~ 200 ℃ 4 Exhaust duct 1.5M × 1.5M × 0.4MH 13 Waste gas furnace 200 ℃ ~ 400 ℃ 5 First exhaust filter Carbon fiber 14 Catalytic Oxidizer Low temperature catalyst 6 2nd exhaust filter Dust dropping method 15 3rd exhaust filter SUS 304 FILTER 7 Adsorption device Activated Bath (4-8 mesh) 16 SUPPLY AIR 8 Exhaust fan 350㎥ × 250mmAg-15HP 17 Regenerative air 20㎥ / min-10 ℃ 9 Pressure automatic control device (control valve) 3 set automatic valve 18 CONTROL BOX

Although the present invention has been described in connection with the above-mentioned preferred embodiments, the scope of the present invention is not limited to these embodiments, and the scope of the present invention is defined by the following claims, and equivalent scope of the present invention. It will include various modifications and variations belonging to.

The reference numerals set forth in the claims below are merely to aid the understanding of the present invention, not to affect the interpretation of the scope of the claims, and the scope of the claims should not be construed narrowly.

10 paint booth 11 lower case
16: upper case 20: exhaust duct
30: first exhaust filter 40: second exhaust filter
50: activated carbon adsorption device 60: extension duct
70: first blower 80: waste gas preheating device
90: waste gas heating furnace 100: catalytic oxidation device
110: first circulation pipe 110a: downstream of the first circulation pipe
110b: upstream of the first circulation pipe 120: exhaust fan
130: control valve 140: flow rate control device
190: external discharge pipe 200: second circulation pipe
210: second air supply pipe 220: third filter
S: Pressure sensor

Claims (6)

A paint booth 10 having a top case 16 through which the clean air is introduced into the ceiling and a bottom case 11 through which contaminated air is discharged and forming a paint space for the vehicle;
An exhaust duct 20 which communicates with the lower case 11 and the first exhaust filter 30 and serves as a discharge passage for polluted air;
A first exhaust filter 30 that primarily filters large dust of the contaminated air introduced into the exhaust duct 20;
A second exhaust filter (40) provided downstream from the first exhaust filter (30) to secondly filter dust contained in the polluted air passing through the first exhaust filter (30);
An activated carbon adsorption device (50) provided downstream of the second exhaust filter (40) to filter out volatile organic compounds of contaminated air passing through the second exhaust filter (40);
A first circulation pipe (110) forming a passage for supplying the purified air discharged from the activated carbon adsorption device (50) to the upper case (16);
An exhaust fan 120 which sucks the purified air through the activated carbon adsorption device 50 and pumps it to the downstream 110a of the first circulation pipe 110 or the external discharge pipe 190;
Recycling the exhaust gas, characterized in that it comprises a; control valve 130 for controlling the flow in the direction of the downstream 110a and the external discharge pipe 190 of the first circulation pipe 110 from the exhaust fan 120 Automotive paint device. The method of claim 1,
It further comprises a pressure sensor (S) for detecting the internal pressure of the paint booth 10 and transmits it to a controller (not shown),
When the internal pressure of the paint booth 10 is less than the set value, the controller opens the flow in the direction of the downstream 110a of the first circulation pipe 110.
The control unit closes the flow in the downstream 110a direction of the first circulation pipe 110 when the internal pressure of the paint booth 10 exceeds a set value, and opens the flow in the external discharge pipe 190. Automotive paint equipment to recycle the exhaust gas. The method of claim 2,
And a flow amount adjusting device (140) positioned between the control valve (130) and the upper case (16) to adjust the flow amount of the purified air. The method of claim 1,
Hot air supply means (not shown) for applying hot air to the adsorption device 50 including steam at 80 to 150 ° C .;
An extension duct 60 connecting the downstream end of the adsorption device 50 and the first blower 70;
A first blower 70 for pumping the volatile organic compound desorbed by the hot air into the waste gas preheater 80;
A waste gas preheater (80) installed in the downstream of the first blower (70) to preheat air containing volatile organic compounds introduced therein;
A waste gas heating furnace (90) for heating air containing volatile organic compounds introduced through the waste gas preheater (80) to 150 to 300 ° C;
A catalytic oxidation apparatus (100) for converting volatile organic compounds of air introduced through the waste gas heating furnace (90) into catalysts and converting them into water and carbon dioxide;
The second circulation pipe 200 for transmitting the purified hot air through the catalytic oxidation device 100 to the upper case 16; waste gas generated during the regeneration of the exhaust gas and activated carbon, characterized in that it further comprises Automotive paint equipment to recycle. The method of claim 4, wherein
The second circulation pipe 200 passes through the waste gas preheater 80 so that the internal air of the second circulation pipe 200 may exchange heat with the inside of the waste gas preheater 80. Automotive coating equipment to recycle waste gas generated during regeneration. The method of claim 4, wherein
A third filter 220 is further provided on the second circulation pipe 200.
A second external air supply pipe 210 for supplying external air to the catalytic oxidation device 100 is further provided for recycling the exhaust gas and waste gas generated during the regeneration of activated carbon, the coating device for automobiles.

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