KR102123648B1 - Automotive paint booth with air supply and filtration system - Google Patents

Abstract

An automotive paint booth with an air supply device including an air conditioner and a filter comprises: a booth where painting for a vehicle is performed; an air supply device connected with a connection duct by a circulation duct to supply cool air to a booth by a cooler upon introduction of external air or upon circulation of internal air during a painting operation and to circulate hot wind for uniformly maintaining a temperature inside the booth upon heat treatment; and a filter to exhaust fine paint, gas including paint thinner and air having filtered smell to the outside by passing air inside the booth through a filter while introducing the air into a body of the air supply device through a circulation duct. An environment suitably maintains a temperature inside the booth according a work process so that excellent painting glossiness may uniformly present on a surface of a vehicle regardless of external temperature by introducing external air or circulating internal air during a paint process or a heat treatment process at a manufacturing field or company of vehicles. Since a proper temperature is maintained inside the booth to paint regardless of external temperature, a work environment is maintained comfortably. Further, since internal temperature is properly maintained by a cooler at a hot weather, a paint surface of a vehicle is not delaminated or wrinkled.

Description

Automotive paint booth with air supply and filtration system with air-cooling air supply and filtration device installed

The present invention relates to a coating booth for automobiles equipped with an air-supply device and a filtration device having a cooler, and more specifically, by inflowing external air or circulating air therein according to a painting process and a heat treatment process at an automobile manufacturing site or an automobile industry. The present invention relates to a coating booth for automobiles equipped with an air supply device and a filtration device having an air conditioner that maintains a proper temperature inside a booth according to a work process to increase the quality of painting while maintaining a comfortable working environment.

Conventionally, in order to paint the exterior of a product produced at an industrial site, paint booths are installed and used in each manufacturing site, but there is a problem in that workers are exposed to respiratory diseases and skin diseases due to poor air intake and exhaust facilities.

Accordingly, various air supply devices have been provided in the prior art to improve this problem.

Looking at an example of the air supply equipment of the most frequently used automatic coating equipment in the industrial field, the existing prior art Republic of Korea Patent Publication No. 1997-0001792 (hereinafter referred to as "advanced technology") "Car paint drying method and paint drying The device" includes a painting and drying unit that forms a space in which the vehicle can enter to paint and dry the vehicle; A connecting duct installed above the painting and drying unit and supplying air to the painting and drying unit; An exhaust duct installed on a bottom surface of the painting and drying unit to discharge air in the painting and drying unit; A circulation duct installed on the bottom surface of the painting and drying unit to reuse air in the painting and drying unit; An air supply unit having a first suction port connected to the other end of the circulation duct and a second suction port for sucking air from the outside; A sending unit having a blower, a burner and a heat exchanger for heating the air supplied from the air supply unit; A painting and drying apparatus comprising an air exhaust connected to one end of the exhaust duct, comprising: a damper c installed at a first intake of the air intake; A damper a installed in the second suction port of the air suction unit; A damper b installed in the exhaust portion; Disclosed is a painting and drying apparatus comprising a suction filter chamber in which a filter is accommodated between the delivery unit and the air suction unit and has a door.

In the prior art configured as described above, since the heating air used for drying the car painted in the existing painting and drying apparatus is discharged to the outside, a lot of energy is consumed to heat the newly introduced external air, so the drying time is prolonged. However, there was an uneconomical problem by consuming unnecessary manufacturing expenses.

In addition, when replacing the filter installed in the filter chamber, the dust and impurities accumulated in the filter flow into the painting and drying chamber during the replacement process, so after cleaning the filter, the inside of the painting and drying chamber must be cleaned. In order to solve this, the prior art repaints the filtered air through the filter in the filter chamber by introducing air through the damper c installed in the first inlet of the air intake through the circulating duct to paint and rectify the air inside the drying apparatus. It is configured to prevent the temperature of the air from being lost by supplying it into the drying device and not to clean the interior of the painting and drying device separately.

In the prior art configured as described above, a circulating duct that induces high-temperature air flow in the painting chamber is connected to the lower side of the painting and drying apparatus and the side wall of the suction filter chamber to circulate air through the circulating duct to return the air in the painting and drying chamber. By constructing the air intake part and providing a damper c separately, the facility cost increases as well as the peripheral equipment for controlling air inflow through the damper c is additionally installed, and the electrical sensor for manipulating it is additionally installed, making the configuration complicated. There is a problem.

As a prior document for solving the above problems, the "Air supply device and air supply method for coating equipment" in Korean Patent Registration No. 10-1434622 (Aug. 26, 2014) is an air supply process for air supply equipment for painting equipment. Adjusting the direction change damper in the air inlet duct so as to induce air introduced from the outside to the painting booth side or heated air in the painting booth through the air circulation duct through the heating burner to flow back into the painting booth; Drying the object to be painted in the coating booth and circulating it to the direction damper side through the lower grating and air circulation duct; A painting equipment device comprising the step of supplying air heated in a heating burner through an air supply damper into a painting booth by inhaling air introduced from a direction-reducing damper side through the air circulation duct through a spray fan rotated by a spray motor drive. In the air supply method, the air flowing in from the side of the direction change damper through the air connection duct or the air circulation duct is sucked into the spray fan rotated by the spray motor driving, and the direction between the change direction damper and the spray fan driven by the spray motor. Filtering through a filter unit made of a pocket installed in the; The air filtered by the filter unit is supplied to the coating booth through an air supply duct so that the temperature inside the room is maintained at 20 to 25°C so that an operator in the coating booth in a heating burner can paint in a comfortable environment. Wow; Supplying air heated with heat at a temperature of 60 to 200°C from a heating burner to a coating booth through an air supply duct to dry the object to be painted in the oven after the painting is completed in the coating booth; The heated air supplied into the coating booth is dried by drying the object to be coated in the coating booth and filtered through a carbon filter through a lower gradation and air circulation duct, and then discharged to an air discharge duct by an air supply fan; And it is characterized in that it consists of a step of supplying the air flowing in from the direction of the damper to the spray fan rotated by the spray motor drive, filtered through a filter and then heated and heated by a heating burner.

The above-mentioned prior art documents are difficult to perform because the cooling is not performed in the coating booth during the season when the temperature is high, such as in summer, and it is not easy to circulate outside air or inside air during the painting operation or the coating heat treatment depending on the season. I have a problem.

Republic of Korea Registered Patent Publication No. 10-1434622 (2014.08.26.

The present invention for solving the above problems is to paint by maintaining the temperature inside the booth according to the work process by circulating the outside air or the inside air according to the painting process and the heat treatment process at the automobile manufacturing site or the automobile industry. It is an object of the present invention to provide a coating booth for automobiles equipped with an air supply device and a filtration device having a cooler that allows painting to be performed regardless of external temperature, while maintaining a comfortable working environment while increasing the quality of the product.

The present invention as a means for achieving the above object

A booth on which an automobile is painted; During painting work, when the outside air flows in or the inside air circulates, it is coldly supplied to the booth by a cooler, and during heat treatment, a supply duct connected by a connection duct and a circulation duct that circulates hot air to keep the temperature inside the booth constant. Wow; The air inside the booth flows through the circulating duct to the air supply device body, and through a filtration filter, there is an air conditioner comprising a filtration device that discharges the filtered air containing gas and odor containing fine paint and thinner. Provides a coating booth for automobiles equipped with an air supply device and a filtration device.

The booth of the present invention, a booth inlet formed on the ceiling and a booth body on which a booth outlet formed on the floor is formed; A ceiling filter installed at the booth inlet to remove fine dust contained in the air; A floor filter installed at the booth outlet so that the air inside the booth body is concentrated and discharged to one place; A connection duct installed between the air supply device and the booth body so that air or hot air having a lower temperature is introduced into the booth body; It is characterized in that it comprises a circulation duct connected to the booth body, the air supply unit and the filtration device so that the air inside the booth body can be circulated by the air supply device or the air inside the booth body can be supplied to the filtration device.

The air supply device of the present invention includes: an air supply device body in which an external air inlet port formed on the upper part, and a first circulation port and a second circulation port are respectively formed at the bottom; A damper installed in the outside air inlet and the first and second circulation ports; The first installed at a predetermined interval inside the air supply device body to remove fine dust contained in the air flowing through any one of the first and second circulation ports and the outside air inlet through the circulation duct inside the booth body. A filter and a second filter; A cooler installed inside the air supply device body to be located between the first filter and the second filter so as to supply the air temperature inside the booth body by lowering the outside air flowing through the outside air inlet or the first circulation port; It is installed on the inside of the air supply unit body to supply the air that flows into the outside air inlet or the first circulation port through the first filter and the cooler or through the second filter port through the second filter to the inside of the booth body. An air supply fan driven by; It is characterized in that it includes a heater installed in the air supply device body located in the upper direction of the air supply fan so as to supply hot air by the air supply fan driven by the air supply motor during the heat treatment process inside the booth body.

The damper of the present invention is configured to include a first damper, a second damper, and a third damper, wherein the first damper is installed at the outside air inlet to allow external air to flow into and out of the air supply body. The damper is installed in the first circulation port so that hot air discharged from the inside of the booth body flows through the circulating duct to supply and block cold air exchanged by the cooler to the inside of the booth body, and the third damper It is characterized in that it is installed in the second circulation port so that the hot air discharged from the inside of the body is introduced through the circulation duct so that air can be supplied in a heated state by the heater.

The filtration device of the present invention is installed on the upper portion of the circulating duct, and a filter device body having a space formed therein in a state in which the lower part is opened so that gas and odor containing fine paint and thinner discharged from the booth body are introduced; A first partition wall and a second partition wall having an inlet hole and an outlet hole at a distance from each other so that a paper filter and an activated carbon filter of the filtration filter are installed; A filtration filter fixed to the first partition wall and the second partition wall so as to filter gases and odors including fine paint and thinner flowing through the circulating duct; The air supply fan of the air supply device is weak, so it is installed on the filter device body to be located on the upper part where the second barrier rib is formed so as to prevent the gas and air containing fine paint and thinner inside the booth body from being discharged. An exhaust fan driven by; It characterized in that it comprises an exhaust duct installed on the top of the filter device body to facilitate the discharge of air by the exhaust fan 330 driven by the exhaust motor.

The present invention maintains a proper temperature inside the booth according to the working process by circulating the inside air or the inside air according to a painting process and a heat treatment process at an automobile manufacturing site or an automobile industry, so that the surface of the vehicle is maintained regardless of the outside temperature. There is an effect that can always maintain a high-quality coating gloss.

In addition, the present invention has an effect of maintaining a comfortable working environment by maintaining an appropriate temperature for painting the temperature in the booth regardless of the outside temperature.

In addition, since the inside temperature is properly maintained by the air conditioner on a hot day, the painted surface of the vehicle is not lifted or crying.

In addition, the present invention allows the air purified from the upper side of the booth to flow into the booth when the painting operation is performed in the booth, and at the same time, the air containing the coating paint blown by the spray gun (or squirrel) toward the bottom of the booth is discharged. Therefore, it has the effect of protecting the worker's health from painting paint.

1 is a view showing a coating booth for a vehicle equipped with an air supply device and a filtration device having a cooler according to the present invention.
Figure 2 is a front view showing the air supply device having the air conditioner shown in Figure 1;
Figure 3 is a plan view showing the air supply device having the air conditioner shown in FIG.
4 is a view showing the configuration of the damper shown in FIG. 1;
5 is a view showing the filtration device shown in Figure 1;
6 is a view showing a state in which the outside air is introduced into the booth and discharged into the filtration device in a coating booth for a vehicle equipped with an air supply device and a filtration device having a cooler according to the present invention.
7 is a view showing a state in which the air inside the booth is circulated by the air supply device in the coating booth for a vehicle in which the air supply device having the air conditioner and the filtration device according to the present invention are installed.

Hereinafter, a configuration of a coating booth for an automobile in which an air supply device having a cooler and a filtration device according to the present invention is installed will be described.

The coating booth for automobiles equipped with an air supply device and a filtration device having a cooling device according to the present invention controls air flow and temperature according to the work process performed in the booth 100, thereby increasing the efficiency of painting or heat treatment, and in a pleasant environment. It is characterized in that only the clean air in the state of filtering the gas and odor containing the fine paint and thinner generated during the painting process, as well as allowing the painting to be performed, is discharged to the outside.

The coating booth for a vehicle equipped with an air supply device and a filtration device having a cooling device according to the present invention will be described in detail through the accompanying drawings.

When described in detail with reference to Figures 1 to 5, the coating booth for a vehicle equipped with a supply device and a filtration device having a cooler according to the present invention, the booth 100 is made of the coating of the car, the outside air into the booth 100 or It includes a supply device 200 for introducing the air inside and a filtration device 300 for purifying and discharging the air inside the booth 100 to the outside.

The booth 100 has a booth body 110 in which a space part is configured to allow an object to enter for painting and drying, and a booth inlet through which air is introduced from the air supply device 200 to the ceiling of the booth body 110 ( 111) is formed, the booth outlet 112 is formed on the bottom of the booth body 110 to face the booth inlet 111.

A ceiling filter 113 is installed at the booth inlet 111 to filter fine dust contained in the air supplied from the air supply device 200.

In addition, the booth outlet 112 is provided with a bottom filter 114 so that the inside air of the booth body 110 is collected and discharged, and the bottom filter 114 is a glass filter.

In addition, the booth body 110 is provided with a connection duct 120 connected to the air supply device 200 so that air from the air supply device 200 can be introduced into the booth body 110, and the booth body 110 The circulation duct 130 is installed at the bottom of the booth body 110 to be connected to the booth body 110, the air supply device 200, and the filtration device 300 so that the air inside may be discharged or circulated. .

The air supply device 200 includes an air supply device body 210 in which the outside air inlet 211 and the first circulation port 212 and the second circulation port 213 are formed at the bottom.

A damper 220 is installed at the outside air inlet 211, the first circulation port 212, and the second circulation port 213 of the air supply device body 210 to receive external air by an operation signal from a controller (not shown). It is to be supplied in a lowered state or to be circulated in a state in which the temperature of the air inside the booth body 110 is lowered or heat is included.

The damper 220 includes a first damper 221, a second damper 222 and a third damper 223.

The first damper 221 is installed at the outside air inlet 211 so that external air can be introduced and blocked inside the air supply device body 210. At this time, the second damper 222 and the third damper 223 remain closed.

The second damper 222 supplies hot air discharged from the inside of the booth body 110 through the circulation duct 130 and supplies cold air exchanged by the cooler 250 to the inside of the booth body 110. And it is installed in the first circulation opening 212 to block.

The third damper is a second circulation port so that hot air discharged from the inside of the booth body 110 can be introduced through the circulation duct 130 to be supplied in a state where air is heated by the heater 280. (213).

When the first damper 221 is opened, it is opened before the painting operation through the spray gun and during the painting operation, and external air flows in as shown in'①' of FIG. 2. At this time, the second damper 222 and the third damper 223 remain closed. While the fine dust contained in the outside air is filtered, the air inside the booth body 110 is discharged to the outside and the air is filtered by the filtering device 300.

In addition, when the cooling heat treatment is performed immediately after the heat treatment is completed, that is, when drying is performed while the temperature is lowered when drying the heat-treated surface coating, the first damper 221 is opened.

And when the first damper 221 is opened and external air flows in, when the temperature inside the booth body 110 is higher than the outside temperature, outside air is introduced to lower the temperature inside the booth body 110. The air inside the booth body 110 is discharged to prevent fine dust from adhering to the painted surface.

When the second damper 222 is opened, it is opened when a painting operation is performed by a spray gun from the inside of the booth body 110 to allow air inside the booth body 110 to circulate as shown in'②' in FIG. Gas and odor containing fine dust, fine paint and thinner contained in the air are filtered. At this time, the first damper 221 and the third damper 223 maintain a closed state to maintain a temperature that is easy to work inside the booth body 110.

In the case where the third damper 223 is opened, the temperature inside the booth body 110 is quickly raised during heat treatment in a state in which painting is completed with a spray gun to open the heat to facilitate heat treatment, and the first damper 221 is circulated. And the second damper 222 remains closed.

In addition, when the third damper 223 is opened, air is circulated as shown in'③' of FIG. 2 so that the heater 280 of the air supply device 200 is driven together to circulate hot air inside the booth body 110. The circulating hot air maintains a proper temperature inside the body booth 110 so that a heat treatment process is performed.

In addition, the first damper 221, the second damper 222 and the third damper 223 are formed with a damper panel rotatable around an axis, and one side of the damper panel has a coupling groove and has a semicircular coupling protrusion. The airtightness is maintained by being in close contact with the engaging grooves of the engaging projections of the damper panels formed and installed adjacently.

In addition, the engaging projection is installed so that the direction of the engaging groove is positioned in the opposite direction around the damper panel.

In addition, the air supply device body 210 is provided with a first filter 230 for filtering fine dust contained in air introduced from the outside or fine dust contained in air introduced from the inside of the booth body 110, the first filter A second filter 240 is installed to filter fine dust contained in the air introduced from the inside at a predetermined distance apart from 230.

In addition, an air conditioner is installed between the first filter 230 and the second filter 240 to control the temperature of the outside air or the air inside the booth body 110 through which the fine dust is filtered through the first filter 230. A lower air conditioner 250 is installed.

The air conditioner 250 is composed of an evaporator, a compressor, a condenser, a dryer, and an expansion valve, and is largely divided into an indoor unit 251 in which an evaporator is installed and an outdoor unit 252 in which a compressor, condenser, dryer, and expansion valve is installed.

The indoor unit 251 is installed between the first filter 230 and the second filter 240 of the air supply device body 210 to connect cold air cooled by the heat of the supplied air by an air supply fan to the duct 120 It is supplied to the booth body 110 through. The refrigerant that has undergone heat exchange in the indoor unit 251 is compressed through a compressor, supplied to a condenser, and compressed, and the heat contained in the compressed refrigerant in the condenser is radiated to be supplied to the dryer in a reduced temperature. It is supplied to the expansion valve in a state in which the contained moisture is removed, and the expansion valve expands the compressed refrigerant and supplies it to the evaporator to cool the inside of the booth body through heat exchange.

The air supply device body 210 has an air supply fan driven by an air supply motor 261 to supply air filtered by fine dust by the first filter 230 and the second filter 240 to the inside of the booth body 110. 260 is configured.

The air supply fan 260 is installed inside the air supply device body 210 in a state of being blocked from the outside and passes air through the first filter 230 or the second filter 240 and the air conditioner 250 to booth body 110 ) Feed inside. The air supply motor 261 is installed outside the air supply device body 210 to drive the air supply fan 260.

An inlet duct 270 is installed on an upper side of the air supply device body 210 to allow outside air to be introduced by the air supply fan 260 driven by the air supply motor 261.

In addition, a heater is installed in the upper direction of the air supply fan 260 so that hot air is supplied to the inside of the booth body 110 during the heat treatment process to increase the gloss and strength of the painted car painting surface. 280 is installed.

The filtration device 300 is a filter device body 310, a filtration filter 320, an exhaust fan to filter the gas and odor containing the fine paint and thinner discharged from the inside of the booth body 110 to be discharged to the outside It consists of 330 and exhaust duct 340 is installed to be connected to the circulation duct 130.

The filtering device body 310 is installed on the upper portion of the circulating duct 130, and a space is formed inside with the lower part opened so that gas and odor containing fine paint and thinner discharged from the booth body 110 are introduced. do.

The filtration device body 310 is formed with a first partition wall 311 and a second partition wall 312 to be spaced apart so that a paper filter 322 and an activated carbon filter 323 of the filtration filter 320 can be installed. , The first partition wall 311 and the second partition wall 312 are installed to be shifted from each other.

In addition, between the first partition wall 311, an inlet hole 313 is formed, and gas and air including a fine paint and thinner flowing through the circulation duct 130 are introduced, and the second partition wall 312 A discharge hole 314 is formed between the gas and air containing the fine paint, thinner, and air to be filtered out.

The inlet hole 313 and the outlet hole 314 are preferably formed to be displaced so that the gas and air containing the fine paint, thinner, and air introduced through the inlet hole 313 can be returned.

The filtration filter 320 is installed in the filtration device body 310 so as to filter the gas and odor containing the fine paint and thinner flowing through the circulating duct 130.

The filtration filter 320 is composed of a non-woven fabric filter 321, paper filter 322 and activated carbon filter 323.

The non-woven fabric filter 321 is installed in the lower portion inside the filtering device body 310 in a wave shape so as to widen the contact area with the gas and air containing the fine paint and thinner. The non-woven fabric filter 321 primarily filters the gas containing the fine paint and thinner supplied through the circulating duct 130.

The paper filter 322 is located in the upper direction of the non-woven fabric filter 321 so that the non-woven fabric filter 321 can be filtered again the gas containing the fine paint, thinner, the first partition wall 311 and the second It is provided between the partition walls 312.

The activated carbon filter 323 is located on one side of the paper filter 322 so as to adsorb the odor contained in the air in which the gas is removed from the gas containing fine paint, thinner, and the first bulkhead 311. It is installed between the second partition walls 312.

The exhaust fan 330 is a filtration device to prevent the gas and air containing fine paint and thinner inside the booth body 110 from being discharged because the wind power of the air supply fan 260 of the air supply device 200 is weak. It is installed on the upper portion of the second partition wall 312 formed inside the body 310.

The exhaust fan 330 is connected to the exhaust motor 331 and a belt (not shown) so that the exhaust duct 340 exhausts the gas containing fine paint, thinner, and odor.

Due to the exhaust fan 330 driven by the exhaust motor 331, an exhaust duct 340 is installed on the top of the filtration device body 310 to facilitate exhaust of air.

The operation of the coating booth for a vehicle equipped with an air supply device and a filtration device having a cooler according to the present invention configured as described above will be described.

First, the operator checks the room temperature inside the booth body 110 through the controller to proceed with the painting process, and then operates the controller to set the painting to an easy temperature.

The air supply fan 260 is driven by the air supply motor 261 by opening the first damper 221 to set the temperature inside the booth body 110 to a temperature at which painting is easy. External air flows into the air supply device body (210).

The outside air flowing into the filtration device body 310 passes through the first filter 230 to remove fine dust, and the outside air from which the fine dust is removed passes through the air conditioner 250 and the temperature decreases. It is supplied to the filter 240 to remove fine dust contained in the air.

The air that has passed through the second filter 240 is supplied to the connection duct 120 by the air supply fan 260, and the air supplied to the connection duct 120 is the ceiling filter 113 installed on the booth body 110 ceiling. As it passes through, the fine dust contained in the air is removed again.

The floor filter installed on the floor of the booth body 110 while the air supplied through the ceiling filter 113 maintains the interior temperature inside the booth body 110 at an appropriate temperature (between 20° and 30°) for easy painting. The air introduced into the circulation duct 130 via 114 and the air introduced into the circulation duct 130 is exhaust duct 340 by an exhaust fan 330 driven by the exhaust motor 331 of the filtration device 300. ).

The air discharged by the exhaust fan 330 is discharged in a filtered state by the filtration filter 320.

In the process of filtering the air, the gas containing the micro-paint and thinner is filtered by the non-woven fabric filter 321 such that the contact area with the air is wide, and the inlet hole 313 formed between the first partition walls 311 It is supplied to the paper filter 322 through. The air supplied to the paper filter 322 is discharged while removing the odor contained in the air by the activated carbon filter 323 while removing the gas containing the fine paint and thinner again.

The air that has passed through the non-woven fabric filter 321 as described above does not flow directly into the paper filter 322, but is configured to return to the inside of the filtration device body 310 so that the paper filter 322 and the activated carbon filter 323 are disposed. It is easy to filter and remove gases and odors containing fine paints and thinners.

Through the above process, the indoor temperature inside the booth body 110 is maintained in an appropriate state, and the worker performs painting using a spray gun, and during the painting operation, the second damper 222 is opened in the controller. 2, the inside air of the booth body 110 is circulated as'②'.

In the process of circulating air inside the booth body 110, the second damper 222 is opened so that air is circulated while the air supply fan 260 driven by the air supply motor 261 is driven. When the second damper 222 is opened, the first damper 221 and the second damper 222 remain closed.

The air inside the booth body 110 flows into the air supply device body 210 through the circulation duct 130 by the opening of the second damper 222, and the air introduced into the air supply device body 210 is the first. As the gas containing fine dust, fine paint, and thinner is removed by the filter 230 and the second filter 240, the indoor temperature in the booth body 110 is appropriately adjusted (20° to 30°) by the air conditioner 250. Is maintained).

The air in a state in which fine dust or the like is removed from the first filter 230 and the second filter 240 is supplied to the connection duct 120 by the air supply fan 260 driven by the air supply motor 261, The air supplied to the connection duct 120 passes through the ceiling filter 113 installed on the ceiling of the booth body 110 to remove fine dust and the like and is supplied to the inside of the booth body 110 again.

The air supplied to the inside of the booth body 110 flows into the circulation duct 130 through the floor filter 114 installed at the bottom of the booth body 110 to maintain a comfortable environment inside the booth body 110.

When the above-mentioned painting work is completed, the operator operates the controller to perform a heat treatment process to increase the gloss and strength of the car painting surface, and the third damper to allow air in the booth body 110 to flow in as shown in'③' in FIG. As the 223 is opened, the air supply fan 260 is driven by the air supply motor 261, and at this time, the heater 280 is driven together so that hot air flows into the booth body 110 to be circulated.

The inside temperature is maintained between 60° and 70° by the hot air flowing into the booth body 110 so as to increase the gloss and strength of the car painting surface.

The hot air flowing as shown in'③' in FIG. 2 flows into the booth body 110 in a state in which fine dust is removed by the ceiling filter 113 installed in the booth body 110, and into the booth body 110 inside. The introduced hot air flows back through the second circulation port 213 through the bottom filter 114 and the circulation duct 130 installed on the bottom of the booth body 110, and the second filter installed inside the air supply device body 210 ( 240) is supplied to the inside of the booth body 110 through the connection duct 120 again by the air supply fan 260 in a state in which the fine dust contained in the air is removed, and heat treatment is performed.

By maintaining the temperature inside the booth body 110 constant by the heater 280 as described above, heat treatment on the painted surface is facilitated, so that glossiness and strength are increased.

As described above, since it is easy to set the environment in the booth body 110 for painting a car in the booth 100, the inside of the booth body 110 is maintained at an appropriate temperature (20° to 30°) when painting. There is an advantage that the painting operation is easy.

In addition, since the hot air is circulated during the heat treatment of the painted surface to maintain the proper temperature (60° to 70°), there is an advantage of increasing the gloss and strength of the painted surface.

This specification includes details of many specific implementations, but these should not be understood as limiting on the scope of any invention or claim, but rather as a description of features that may be specific to a particular embodiment of the particular invention. It should be understood. Certain features that are described in this specification in the context of separate embodiments may be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented in multiple embodiments individually or in any suitable subcombination. Further, although features may operate in a particular combination and may be initially depicted as so claimed, one or more features from the claimed combination may in some cases be excluded from the combination, and the claimed combination subcombined. Or sub-combinations.

On the other hand, the embodiments of the present invention disclosed in the specification and drawings are merely presented as specific examples for ease of understanding, and are not intended to limit the scope of the present invention. It is apparent to those skilled in the art to which the present invention pertains that other modified examples based on the technical idea of the present invention can be implemented in addition to the embodiments disclosed herein.

100: booth 110: booth body
111: Booth inlet 112: Booth outlet
113: Ceiling filter 114: Floor filter
120: connection duct 130: circular duct
200: air supply device 210: air supply device body
211: outside air inlet 212: first circulation port
213: second circulation port 220: damper
221: first damper 222: second damper
223: third damper 230: first filter
240: second filter 250: air conditioner
251: indoor unit 252: outdoor unit
260: air supply fan 261: air supply motor
270: inlet duct 280: heater
300: filter unit 310: filter unit body
311: first bulkhead 312: second bulkhead
313: inlet hole 314: outlet hole
320: filtration filter 321: non-woven filter
322: paper filter 323: activated carbon filter
330: exhaust fan 331: exhaust motor
340: exhaust duct

Claims (5)

A booth 100 on which a car is painted;
During the painting operation, cold air is supplied to the booth 100 by the cooler 250 when the outside air is introduced or the inside air is circulated, or the hot air is circulated to keep the temperature inside the booth 100 constant during the heat treatment process. An air supply device 200 connected by the connection duct 120 and the circulation duct 130 so as to make the device;
As the air inside the booth 100 flows into the air supply device body 210 through the circulation duct 130 and exits the filtration filter 320, the gas containing the micro-paint and thinner and the odor are filtered air to the outside. Filter device 300 for discharging; includes,
The air supply device 200,
An air supply device body 210 in which the external air inlet 211 and the first circulation port 212 and the second circulation port 213 formed on the upper portion are respectively formed at the bottom;
The first damper 221 installed at the outside air inlet 211 and the hot air discharged from the inside of the booth body 110 are provided with a circulation duct 130 to allow outside air to enter and block inside the air supply device body 210. The second damper 222 installed in the first circulation port 212 and the inside of the booth body 110 so as to supply and block the air introduced through the cooler 250 and lowered by the cooler 250 inside the booth body 110 Consists of a third damper 223 installed in the second circulation opening 213 so that the hot air discharged from the air is introduced through the circulation duct 130 and supplied by the heater 280 in a warmer state. A damper 220;
Removes fine dust contained in the air flowing through any one of the outside air inlet 211 and the first circulation port 212 and the second circulation port 213 through the circulation duct 130 at the bottom of the booth body 110 A first filter 230 and a second filter 240 installed at predetermined intervals inside the air supply device body 210 so as to be able to do so;
The first filter 230 and the second filter so that the outside air flowing through the outside air inlet 211 or the first circulation port 212 or the air inside the booth body 110 can be lowered and supplied to the booth body 110. Cooling unit 250 is installed inside the air supply unit body 210 to be positioned between (240) and;
The air that flows into the outside air inlet 211 or the first circulation port 212 and passes through the first filter and the cooler or the air that flows through the second circulation port 213 and passes through the second filter 240 to the booth body ( 110) an air supply fan 260 installed inside the air supply device body 210 to be supplied to the inside and driven by the air supply motor 261;
In the booth body 110, the air supply fan 260 is positioned upwardly to be installed on the air supply device body 210 to supply hot air by the air supply fan 260 driven by the air supply motor 261 during the heat treatment process inside the booth body 110. Heater 280; a coating booth for a vehicle equipped with an air supply device and a filtration device having a cooler, characterized in that it comprises a. According to claim 1,
The booth 100,
A booth body 110 in which a booth inlet 111 formed in a ceiling and a booth outlet 112 formed in a floor are formed;
A ceiling filter 113 installed at the booth inlet 111 to remove fine dust contained in the air;
A floor filter 114 installed at the booth outlet 112 so that the air inside the booth body 110 is concentrated and discharged to one place;
A connection duct 120 installed between the air supply device 200 and the booth body 110 so that air or hot air having a lower temperature is introduced into the booth body 110;
The booth body 110, the air supply device 200 and the filtration so that the air inside the booth body 110 can be circulated by the air supply device 200 or the air inside the booth body 110 can be supplied to the filtration device 300. A circulation duct 130 connected to the device 300;
A coating booth for a vehicle equipped with an air supply device and a filtration device having a cooler, characterized in that it comprises a. delete delete According to claim 1,
The filtration device 300,
It is installed on the upper portion of the circulating duct 130, and the filtering device body 310 having a space formed therein with the lower part opened so that the gas and odor containing the fine paint and thinner discharged from the booth body 110 flow in. ;
A first filter having an inlet hole 313 and an outlet hole 314 so that the paper filter 322 and the activated carbon filter 323 of the filtration filter 320 can be installed, and the distance to the filtering device body 310 is spaced apart. A partition 311 and a second partition 312;
Filtration which is fixed to the first partition wall 311 and the second partition wall 312 so as to filter the gas and odor containing the fine paint and thinner flowing through the circulating duct 130 and installed in the filtering device body 310 A filter 320;
The air formed in the filtering device body 310 to prevent the gas and air containing fine paint and thinner inside the booth body 110 from being discharged because the wind power of the air supply fan 260 of the air supply device 200 is weak. An exhaust fan 330 installed at an upper portion of the two partition walls 312 and driven by the exhaust motor 331;
An exhaust duct 340 installed on the top of the filtration device body 310 to facilitate the discharge of air by the exhaust fan 330 driven by the exhaust motor 331;
A coating booth for a vehicle equipped with an air supply device and a filtration device having a cooler, characterized in that it comprises a.

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