KR100678654B1 - Infrared heater paint booth - Google Patents

Abstract

A vehicle body painting and drying booth using an infrared heater is provided to prevent a fire generated in operating the heater to dry the painted vehicle bodies by removing inflammable gas and fine dust remaining in a work space before drying the vehicle bodies with the heater. The vehicle body painting and drying booth(1) is composed of a work space(11) having a gate door opened or closed to let vehicles(2) come in or out and a space part letting a worker paint a vehicle body around the vehicle with moving; a ceiling passage(12) supplying the air fed from a blower(3) installed at the outside to the inside through the ceiling; a floor passage(13) exhausting the air fed into the work space through the ceiling passage, through the floor to an exhauster(4) installed at the outside; plural Infrared heaters(5) installed at both side walls to heat and dry the paint applied on the vehicle bodies; at least one exhausting ventilation unit(6) installed in the booth; a discharge port of the exhausting ventilation unit exhausting the polluted interior air ejected by the exhausting ventilation unit to the outside; and a discharge guide plate connected to a discharge passage formed on the wall where the ventilation unit is installed.

Description

Automobile body paint drying booth using infrared heater {Infrared heater paint booth}

1 is a diagram illustrating the internal structure of a paint booth for explaining the present invention.

Figure 2 is an exploded perspective view of the ventilation means and exhaust guide plate for removing the exhaust gas and residual gas in the paint drying booth of the present invention.

Figure 3 is a cross-sectional view of the installation state of the ventilation means for ventilation of the present invention.

Figure 4 is a perspective view of a heat radiation reflector for infrared heater hot shelf use of the present invention.

※ Explanation of code for main part of drawing

1: paint booth 11: workspace

12: ceiling passage 13: floor passage

14: wall 16: discharge passage

2: car 3: blower

4: ventilator 5: infrared heater

6: ventilating means 61: motor

62: case 63: cylindrical fan

64: fan cover 65: inlet

66: base plate 67: filter

68 outlet 7 hot reflecting plate

8: discharge guide plate

The present invention relates to an automobile body coating and drying booth using an infrared heater that performs a job of painting the paint on the car body and the drying of the paint on the body, and more specifically, a blowing device on the inner wall of the paint drying booth. As a means of installation, when the paint works of the car body are completed, the combustible gas remaining in the booth and the evaporation gas generated during the painting work are discharged to the outside, so that the risk of fire during drying In order to make the painting and drying work safer from the outside, it is also equipped with a ventilator and a bottom reflector so that the drying work can be done well to the lower part of the car that the infrared heater's heating wire does not directly touch by reflecting the heating wire generated from the infrared heater. A paint drying booth.

In general, in order to repaint the entire body of the car, the paint work is done in the paint booth that the car can enter and exit, and the existing paint booth is equipped with a drying device for drying the paint on the car within a short time. have.

Conventionally, a drying apparatus installed in a painting booth adopts a hot air drying method using a hot air boiler mainly using oil as a fuel.

The conventional hot air drying method is a heat-drying drying method in which the heated hot air is supplied into the booth of the coating booth to dry the hot air by directly contacting the paint coated on the vehicle by the convection of the hot air. Due to the high thermal efficiency, the temperature distribution is not constant due to convection, and the paint applied to the body of the car is not dried uniformly, resulting in a long drying time and a pinhole phenomenon. The longer the operation time of the hot air boiler, the longer it takes a lot of fuel, and accordingly it has been pointed out as a problem that the operating cost of the drying apparatus of the coating booth becomes expensive.

As a solution for solving the problems in the hot air welding method using the hot air boiler as described above, the coating drying apparatus using the far-infrared heater (halogen lamp) of Utility Model Registration No. 386028 has been proposed by the inventor of the present invention. Far-infrared heater coating drying device offers superior advantages in terms of thermal efficiency and operation cost reduction compared to drying device using hot air boiler, but the quality of painting can be deteriorated due to the residue of fine dust generated during painting work. Due to the combustible gas flowing in the inside and the evaporation gas generated during coating drying, there was a problem that a fire or the like followed.

In addition, automotive paints (paints) are usually used by diluting the diluent in an appropriate ratio and diluting it with an easy to spray viscosity. After the painting work is carried out in the copying and before starting the drying work, the infrared heater must be operated after removing the thinner gas remaining in the booth. In the prior art, the paint drying booth using the infrared heater convections the air in the booth. Since only a circulation fan is installed to circulate through the operation, there is no device to discharge residual gas inside the booth.Therefore, a fire due to residual gas may be generated when an infrared heater is operated to perform the drying operation. As well as the drying process of the paint Evaporation occurs when gas is accumulated in the booth were not removed and that there is a greater risk than fire explosions may occur is pointed out as a problem.

Therefore, the present invention has been proposed in consideration of the general matters appearing in the above-described prior art coating and drying booth, and when the coating work is carried out in the coating and drying booth, the blower and the ventilation device installed on the outside of the booth are operated and painted. After finishing the painting work as a means of discharging flammable gas and fine dust generated during the work, stop the operation of the above blowing and ventilating device, and apply it to the painting drying booth from the start of the drying work to the completion of the drying work. In addition to the residual combustible gas and fine dust, the evaporative gas generated during the drying operation can be continuously discharged, so that the drying operation can be performed safely from the fire during the painting and drying operation to dry the paint on the car body using the heating wire of the infrared heater. Paint drying booth with ventilation means for ventilation to perform The main purpose is to provide a heat reflector that reflects the heating wire of the infrared heater to the lower part of the car so that the heating wire can reach the lower part of the car where the heating wire of the infrared heater does not directly reach. Invented for another purpose to improve the coating quality of the car body by providing.

The present invention as a means for achieving the above object,

It is equipped with a door that can be opened and closed so that a car can enter and exit, and a work space is provided where a worker can move around the worn car and paint the paint, and the air supplied from the blower installed outside. A ceiling passage for supplying the interior through the ceiling of the space, a floor passage for discharging the air supplied to the work space through the ceiling passage to the exhaust fan installed through the floor, and painted on the car body In the painting and drying booth provided with a plurality of infrared heaters, each of which is provided with at least one on each side wall in order to heat-dry the paint,

At least one ventilating means for ventilating is installed inside the coating and drying booth, and the outlet of the ventilating means for ventilating and exhausting the contaminated indoor air discharged by the ventilating means for ventilating to the outside. Characterized in that by connecting the discharge passage formed on the wall surface and the means is installed with the discharge guide plate.

In addition, the ventilating means for the ventilation and the fan cover is fixed to the inner wall of the paint drying booth, the fan cover is formed inside the case of the suction side and the discharge side for discharging the sucked air to the center side of the cylindrical fan; A filter is disposed between the inlet formed on the upper side of the case and the support plate on which the plurality of holes are formed, and a discharge port formed on the lower side of the case to discharge air discharged from the discharge side of the fan cover. The outlet of the means is characterized in that the discharge guide plate for discharging the air discharged through it to the discharge passage of the wall is installed.

In addition, a heat ray reflector having an inclined reflecting surface may be provided on a peripheral floor of the vehicle worn in the coating and drying booth to reflect the heating wire generated from the infrared heater toward the lower portion of the vehicle.

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

1 is an internal structural diagram of a paint drying booth for explaining the present invention, Figure 2 is a separate perspective view of the ventilating means for exhaust and exhaust guide plate for removing residual and evaporated gas in the paint drying booth of the present invention, Figure 3 is a cross-sectional view of the installation state of the ventilation means for ventilation of the present invention, Figure 4 is a perspective view of a heat ray reflector for infrared heater hot shelf use of the present invention.

In the drawings, reference numeral 1 denotes a paint drying booth, and the paint drying booth 1 is provided with an entrance door that can freely enter and close the inside of a car 2 such as a passenger car or a van. , The interior is provided with a work space 11 formed of a sufficient space to perform the painting work around the car (2) worn by the worker.

Blowing apparatus 3 and ventilating apparatus 4 for ventilating the work space 11 are installed at both outer sides of the painting drying booth 1, and the blowing apparatus 3 is the painting drying booth 1. It is installed to supply fresh air to the ceiling passage (12) of the), the air blowing device (4) is to suck the contaminated air inside the paint drying booth (1) from the bottom passage (13) to the outside It is installed to be discharged.

The ceiling passage 12 includes a filter for filtering dust and the like contained in the air supplied from the blower 3, and the ceiling passage so that the air can be supplied toward the entire upper part of the work space 11. The bottom of (12) (corresponding to the ceiling of the working space) is formed with a number of through holes.

The floor of the work space 11 is formed of an iron structure, for example, a grating structure that can withstand the load of the vehicle 2 and discharge the air therein into the floor passage 13. . Therefore, the internal air of the working space 11 is sucked into the bottom passage 13 by the air blowing operation of the air blowing device 4 is discharged to the outside through the air blowing device (4).

In addition, a plurality of infrared heaters 5 are provided on both inner wall surfaces of the paint drying booth 1 for drying the paint painted on the sea of the automobile 2.

The infrared heater 5 emits heat rays generated by the electric heater to heat-dry the paint coated on the vehicle 2, and the infrared heater 5 generates far infrared rays whose wavelengths of the heat rays belong to medium and long waves. It can use alternatively from the heater which radiates | releasing, or the heater which radiates near-line heating wire which belongs to a short wave.

In addition, the infrared heater 5 is installed to adjust the inclination angle so that the drying operation can be efficiently carried out by adjusting the emission angle of the hot wire according to the height of the garage according to the vehicle model of the vehicle 2.

A characteristic of the present invention is the flammable gas and fine dust remaining in the work space 11 and the paint during the drying work when the drying work is completed after completing the painting work of the car 2 put into the painting drying booth 1. Including the ventilation means for the exhaust air for discharging the boil-off gas generated in the outside to the outside, and also another feature is the lower part of the body of the vehicle (2) body that the heating wire of the infrared heater (5) does not directly reach By further reflecting the heating wire of the infrared heater 5, the lower portion of the vehicle body further comprises a heat ray reflecting plate 7 so that the heating wire of the infrared heater 5 extends.

To this end, at least one ventilating means 6 for ventilating the inside of the paint drying booth 1 is to be installed, and the ventilating means for ventilating 6 is provided on the wall 14 on which the ventilating means for the venting 6 is installed. Motor installation hole 15 is inserted into the motor 61 of the installation is formed, and the discharge passage 16 for ventilating the air in the work space 11 is formed at a suitable position below the motor installation hole have.

And, the ventilation means for the ventilation 6 is a case 62 fixedly attached to the wall surface 14 in a state in which the motor 61 is inserted into the motor installation hole 15 in the interior of the paint drying booth (1); The cylindrical fan 63 is rotatably installed inside the case 62 while being connected to the rotation shaft of the motor 61, and the cylindrical fan 63 is installed inside the case 62 to surround the cylindrical fan 63. A fan cover 64 having a suction side 641 through which the air is sucked into the center side of the cylindrical fan during the rotation operation of the cylindrical fan 63, and a discharge side 642 through which the air is discharged to one side of the circular fan; A filter 67 is detachably interposed between the inlet 65 of the upper part of the case 61 and the support plate 66 formed with a plurality of through holes 661. The lower part of the case 62 has a cylindrical fan ( A discharge port 68 for discharging the air sucked into the 63 is formed.

The ventilating means 6 for ventilation is configured as described above is to attach the case 61 to the wall surface 14 so that the discharge port 68 is located directly on the discharge passage 16 formed in the wall surface 14, and then the case ( The discharge port 68 is connected to the discharge passage 16 formed on the wall by the discharge guide plate 8 that is separately manufactured and attached to the wall surface 14.

On the other hand, after completing the painting work in the paint drying booth (1), the heat reflector 7 is installed on the bottom of the vehicle 2, the heat reflector 7 is a car 2 as shown in FIG. It is also installed in the lower left and right lower part of the body and the front and rear lower part (not shown), and the heat reflection plate 7 is a heating wire emitted from the infrared heater 5 to the lower part of the body of the vehicle (2). A reflecting surface 71 that is inclined toward the vehicle is formed so as to be able to reflect.

The reflecting surface 71 is formed of a material such as stainless steel or ceramic, which is heat resistant and has excellent reflection efficiency.

On the other hand, although not shown in the embodiment of the present invention, the painting drying booth 1 may be provided with a circulation fan for circulating air in the work space 11 during the drying operation.

The operation of the present invention configured as described above will be described.

When the car 2 to be applied to the paint drying booth 1 is received, the worker proceeds the painting work in a spray coating method while the blower 3 and the blower 4 are operated. At this time, the combustible gas and the fine dust (including the fine particles of the paint) generated from the sprayed paint are diluted by the ventilation air continuously supplied from the ceiling passage 12 and the bottom is sucked by the air blowing device 4. It is sucked into the passage 13 and is discharged to the outside through the ventilator (4), the ventilator (4) has a built-in filter for filtering the combustible gas and fine dust, the air discharged to the bottom passage 13 It is discharged to the atmosphere with the pollutant removed.

After the painting work is completed in the work space 11 as described above, the worker installs the heat reflector 7 on the periphery of the vehicle 2 and exits the paint drying booth 1 and then the infrared heater 5 and the air blowing. The ventilating means 6 is operated. In this case, the ventilating means 6 for ventilating is operated before the infrared heater 5 to remove flammable gas and floating fine dust remaining in the work space 11.

When the ventilating means 6 for ventilation is operated, the motor 61 is driven to rotate the cylindrical fan 63, and the suction of the cylindrical fan 63 is performed by the suction operation of the cylindrical fan 63. Air is sucked into the inlet 65. The combustible gas and the fine dust contained in the air sucked into the inlet 65 are adsorbed and filtered by the filter 67, and only the purified air is sucked from the fan cover 64. 641 is sucked into the discharge side 642, and the air discharged to the discharge side is discharged through the discharge port 68 under the case 62, the discharge port 68 is discharged to the induction plate (8) Since it is connected to the discharge passage 16 by the air discharged to the discharge port 68 of the ventilating means for ventilation 6 is discharged to the outside through the discharge passage 16 through the discharge guide plate (8) (11) It is possible to remove flammable gas and fine dust remaining inside.

As described above, when the inside of the work space 11 is purged to some extent by operating the ventilation means 6 for ventilation, the infrared heater 5 is operated to perform a drying operation. 2) Volatile evaporation gas is generated from thinners and other materials used as thinner in paints during the drying of paints coated on the body. Therefore, while the drying operation is in progress to continue operating the ventilation means for ventilation (6) to continuously remove and remove the evaporated gas generated during the drying operation.

And since the infrared heater 5 is installed at a higher position than the vehicle 2, the heating wire emitted from the infrared heater 5 heats the upper portion of the vehicle 2 directly, thereby making it easy to dry, while the automobile 2 The lower part of the) is not directly exposed to the heating wire, but the heating wire is reflected to the lower part of the vehicle by the inclined reflecting surface 71 of the heat reflector 7 installed on the peripheral floor of the vehicle, so that the entire body of the vehicle 2 is infrared rays. Being in the area of the heating wire discharged from the heater 5, it is possible to improve the drying efficiency of the paint painted on the body of the vehicle 2, and also by the ventilation means for the ventilation (6) working space 11 during the drying operation By removing the evaporated gas and fine dust suspended in the) will be able to increase the paint quality.

According to the present invention as described above the flammability remaining in the interior of the work space before starting the drying operation after completing the painting work for painting the paint on the car body received in the work space is installed in the automobile paint drying booth By removing the fine dust including gas and fine paint particles, it is effective to prevent accidents such as fire when operating infrared heater for drying work. By removing the evaporated gas generated from the paint heated and dried by the infrared heater's heating wire, it is possible to remove the floating fine dust, thereby preventing the phenomenon of getting the fine dust on the car body to be dried and drying operation. The underside of the car body that does not directly reach the heating wire emitted from the infrared heater The part can be heated and dried by the heat rays reflected from the heat reflector, so that the entire paint coated on the car body can be dried at a uniform heating temperature, thereby improving the drying efficiency and shortening the drying time. It is to provide an effect that can be increased.

Claims (3)

It is equipped with a door that can be opened and closed so that a car can enter and exit, and a work space is provided where a worker can move around the worn car and paint the paint, and the air supplied from the blower installed outside. A ceiling passage for supplying the interior through the ceiling of the space, a floor passage for discharging the air supplied to the work space through the ceiling passage to the exhaust fan installed through the floor, and painted on the car body In the painting and drying booth provided with a plurality of infrared heaters, each of which is provided with at least one on each side wall in order to heat-dry the paint, At least one ventilating means for ventilating is installed inside the coating and drying booth, and the outlet of the ventilating means for ventilating and exhausting the contaminated indoor air discharged by the ventilating means for ventilating to the outside. Automotive body coating and drying booth using an infrared heater, characterized in that by connecting the discharge passage and the discharge guide plate formed on the wall surface is installed. The method of claim 1, The ventilating means for ventilation is a case that is fixed to the inner wall of the paint drying booth, and a fan cover formed inside the case of the suction side for sucking air to the center side of the cylindrical fan and the discharge side for discharging the sucked air; The filter is interposed between the inlet formed in the upper side of the case and the backing plate formed with a plurality of through holes, and the outlet formed in the lower side of the case to discharge the air discharged from the discharge side of the fan cover, The outlet body is a car body painting and drying booth using an infrared heater, characterized in that the discharge guide plate is installed to discharge the air discharged through the discharge passage on the wall. The method of claim 1, The infrared ray heater is provided with a heat ray reflector having an inclined reflecting surface to reflect the heating wire generated from the red-line heater toward the lower part of the vehicle on the peripheral floor of the car worn in the paint drying booth. Body paint dry booth.

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