KR100619427B1 - Near infrared heater paint booth - Google Patents

Abstract

The present invention relates to a painting and drying apparatus using a ruby coat near infrared heater installed on a painting booth for painting a paint on a car body. A work space, a blower for supplying external air to the work space, a ceiling supply passage formed in the ceiling of the work space, and a floor blower for discharging air from the work space to the outside through the floor. In the paint booth having a passage and a blower for sucking the air in the working space through the bottom vent passage to discharge to the outside,

A plurality of near-infrared heaters are provided at predetermined intervals on each of the left and right side walls of the paint booth so as to radiate near-infrared heat rays from the upper left and right sides of the car, based on the car put into the paint booth. The near-infrared heater includes a case body, a reflection plate having an arc-shaped cross section inside the case body, an electric heater installed in the longitudinal direction of the case body, and is installed to surround the electric heater, and is generated from the electric heater. The invention is characterized in that it comprises a ruby coat is heated to the heat to be radiated near-infrared heat rays.

Painting Dryer, Near Infrared Heater, Ruby Coat, Air Circulation Equipment

Description

Near-infrared heater paint booth using ruby coat near infrared heater

1 is a perspective view partially cross-sectional view of the booth for explaining the present invention.

Figure 2 is a cross-sectional view showing a process of painting a car in a paint booth to illustrate the present invention.

Figure 3 is an operating state of the near infrared heater showing a process of drying the paint coated on the vehicle of the present invention.

4 is a cross-sectional view of the near infrared heater of the present invention.

Figure 5 is a cross-sectional view of the operating state of the air circulation of the present invention.

※ Explanation of code for main part of drawing

1: paint booth 2: car

3: blower 4: blower

5: near infrared heater 6: air circulation system

12: Work space 13: Ceiling supply passage

14 ceiling filter 15 floor ventilation passage

16: grating bottom 31: suction duct

32: suction filter 41: exhaust duct

51: bracket 52: case body

53: reflector 54: electric heater

55 ruby coat 58 elastic constriction member

61: motor 62: circulation fan

63: inner case 64: outer case

65: upper inlet 66: air filter

67: Lower outlet 68,69: Inlet and outlet

The present invention relates to a coating and drying apparatus using a ruby coat near infrared heater which is installed in a coating booth for coating a paint on a vehicle body.

In general, in order to repaint the whole body of the car, the paint work is done in the paint booth where the car can enter and exit. In the existing paint booth, a drying device is installed to dry the paint on the car in a short time. .

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 paint booth to dry the hot air by directly contacting the paint coated on the vehicle by the convection of the hot air. The thermal efficiency is low, and the temperature distribution by the convection action becomes inconsistent, so that the paint coated on the body of the car is not uniformly dried, resulting in a long drying time and a pinhole phenomenon. The longer the operation time of the hot air boiler is longer, the more fuel is consumed, and thus, the operating cost of the drying apparatus of the coating booth is pointed out as a problem.

In addition, a coating drying apparatus using a far-infrared heater (halogen lamp) of Utility Model Registration No. 386028 has been proposed by the inventor of the present invention as a method for solving the problems in the hot air welding method using the hot air boiler as described above. The far-infrared heater coating drying device is superior in terms of thermal efficiency and operation cost reduction than the drying device using a hot air boiler, but it takes about 2 minutes for the far-infrared heater to generate an appropriate temperature heating wire, and the wavelength of the heating wire is long wave to Because it belongs to the middle wave, in order to heat and dry at a uniform temperature on the upper and both sides of the car body, a large number of far infrared heaters must be installed on the ceiling and the left and right walls of the coating part at regular intervals. High installation cost and high power usage Is a challenge that needs to be addressed.

Therefore, the present invention can shorten the time required for radiating the heating wire heated at an appropriate temperature in consideration of the general matters of the coating and drying apparatus as described above, and the wavelength of the heating wire belongs to a short wave so that the air layer passes through the air layer well. The main purpose is to reduce the drying time of paints coated on the sea of automobiles by using near infrared heaters that radiate near-infrared heat rays. Also, air circulation system to distribute the heating air inside the coating booth by convection. It is invented for another purpose to further reduce the drying time of the paint coated on the vehicle body by including a.

Means of the present invention for achieving the above object,

Opening and closing doors to allow cars to enter and exit, a work space formed with enough space to paint the paint while the worker moves around the car, and outside air to ventilate the inside of the work space A blower for sucking and blowing air to the work space, a ceiling supply passage for supplying air blown from the blower through the ceiling of the work space, and air supplied to the work space through the ceiling supply passage to the outside through the floor. In the coating booth having a bottom vent passage for discharging the furnace, and a ventilator for sucking the air in the working space through the bottom vent passage to discharge to the outside,

A plurality of near-infrared heaters are provided at predetermined intervals on each of the left and right side walls of the painting booth to radiate near-infrared heat rays from the upper left and right sides of the vehicle, based on the vehicle that is put into the painting booth.

The near-infrared heater includes a case body, a reflection plate having an arc-shaped cross section inside the case body, an electric heater installed in the longitudinal direction of the case body, and installed to surround the electric heater. It is characterized in that it comprises a ruby coat is heated to the generated heat to emit near-infrared heat rays.

In addition, the ruby coat is characterized in that it is composed of a main component of ruby, a mineral.

Further, the left and right side walls of the coating booth are installed at a position higher than the near infrared heaters, and further include an air circulation device for circulating air in the work space heated by the near infrared heating wire radiated from each near infrared heater by convection. It is characterized by including.

In addition, the air circulation device has an inner case in which a circulation fan rotated by a motor is accommodated, and an outer case installed to surround the inner case is formed in a dual structure, and the inner case sucks and discharges air. Inlet and outlet are formed, the outer case is formed with a top inlet for inducing air intake from the upper side of the work space and a bottom outlet for discharging the air discharged by the circulation fan to the lower side of the work space is formed. It features.

Embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a part of the coating booth to illustrate the present invention, Figure 2 is a cross-sectional view showing the process of painting a car in the coating booth to explain the present invention, Figure 3 is a vehicle of the present invention 4 is a cross-sectional view of an operating state of the near infrared heater of the present invention, and FIG. 5 is a cross-sectional view of the operating state of the air circulation system of the present invention.

Reference numeral 1 denotes a paint booth, and the paint booth 1 wears an open / close door 11 and a car 2 so as to allow a car 2 such as a car or a van to enter and exit. It is provided with a coating space 12 formed of sufficient space to perform the work.

Blowers 3 and a blower 4 for ventilating the work space 12 are installed at both sides of the paint booth 1, and the blower 3 installed at one side of the paint booth 1 is a suction duct ( 31 to inhale the outside air to supply to the ceiling supply passage 13 formed in the ceiling of the coating booth (1), the suction duct (31) inside the suction for filtering the foreign matter sucked with the outside air The side filter 32 is provided, and the air supplied to the ceiling supply passage 13 by the blower 3 is provided through the ceiling filter 14 installed in the entire ceiling of the painting booth 1. Supplied to (12).

At the bottom of the paint booth 1, a metal grating is installed to support the vehicle and to discharge the air supplied to the work space 12 through the ceiling supply passage 14 to the floor vent passage 15. A grating bottom 16 is formed, and the exhaust fan 4 formed on the other side of the coating booth 1 sucks air in the work space 12 through the above-described air exhaust passage 15 and discharge duct 41. It is configured to discharge the furnace.

The exhaust fan 4 is provided with a discharge filter 42 for filtering foreign substances (dust, paint molecules, etc.) contained in the air sucked into the bottom vent passage 15. Therefore, the air discharged to the discharge duct 41 does not pollute the atmosphere.

The present invention is characterized by active convection in the near-infrared heater (5) and the working space (12) for drying the paint coated on the automobile (2) on both left and right side walls of the paint booth (1) within a short time. It is to install the air circulation device 6 to be made.

The near-infrared heater 5 is approximately 40 to 50 ° (preferably 45 °) at a position higher than the car 2 so that the near-infrared heat ray can be radiated with respect to the entire body of the car 2 worn in the work space 12. It is installed in an inclined state, and the near-infrared heaters 5 are installed in a state in which a plurality of left and right side walls of the paint booth 1 are arranged side by side at a predetermined interval.

The near-infrared heater 5 is fixed to the bracket 51 attached to the wall surface and the case body 52, which opens only the part facing the car, which is worn in the work space 12, and the cross section inside the case body. The reflector plate 53 which is mounted in the longitudinal direction of the case body while being formed in this arc shape, and the electric heater installed in the longitudinal direction of the reflector plate 53 in a state spaced apart from the reflecting surface of the reflector by a predetermined distance ( 54) and a ruby coat 55 installed to cover the entire electric heater 54 and heated by heat generated by the electric heater to radiate near-infrared heat rays.

The ruby coat 55 is manufactured by using ruby, which is a mineral having a characteristic of radiating near-infrared heat ray of short wavelength when it is heated by the heat generated from the electric heater 54, the inside of the electric heater 54 built-in The ruby coat 55 is formed in a pipe shape having a hollow portion that can be formed, and the ruby coat 55 is provided on the elastic fastening member 58 installed at a predetermined distance from the reflecting plate 53 by the spacer 56 and the assembly bolt 57. It is detachably installed.

A through hole 59 is formed at both ends of the case body 52 of the near infrared heater 5 to release heat generated from the electric heater 54.

The near-infrared heat ray radiated from the ruby coat 55 heated by the heat generated by the electric heater 54 radiates at a relatively short wavelength (about 0.75 to 2.5 μm) together with the high temperature heat generated by the electric heater 54. Therefore, it has less heat energy loss, shorter heat transfer time, and longer heat transfer distance than air medium.

The air circulation device 6 shortens the drying time of the paint coated on the body of the vehicle 2 by convection the heated air in the work space 12 by the near infrared heating wire radiated from each near infrared heater 5. As it is responsible for, the air circulation device 6 is also fixed to the left and right side walls of the paint booth 1, the installation position is installed at a position higher than the near infrared heater (5).

The air circulation device 6 is an inner case 63 surrounding the circulation fan 62 installed on the output shaft of the motor 61 fixedly installed on the wall, and an outer case 64 installed to surround the inner case. It consists of, the upper inlet 65 of the outer case 64 is equipped with an air filter 66, the lower end is formed with a lower outlet 67 for discharging the air, the inner case 63 An inlet 68 for sucking air to the circulation fan 62 and an outlet 69 for discharging the sucked air are formed therein.

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

When the paint of the body of the car 2 is to be repainted, the car 2 is put into the work space 12 inside the paint booth 1, the door 11 is closed, and then the blower 3 and Painting operation is performed after the exhaust fan 4 is operated. External air sucked into the suction duct 31 by the blowing operation of the blower 3 passes through the suction side filter 32 to the ceiling supply passage 13. While supplied and filtered by the ceiling filter 14 installed in the entire ceiling, the air is supplied to the work space 12 as shown in FIG. 2, while the air supplied from the upper side of the work space 12 operates the air blower 4. Work space 12 when the worker sprays paint on the body of the vehicle 2 with a sprayer by being sucked into the floor vent passage 15 through the grating bottom 16 installed at the bottom of the work space by the suction force of the work space. Paint molecules scattered to the floor from the ceiling The air that is sucked into the bottom vent passage 15 together with the air supplied by the sea is filtered in the process of passing through the discharge side filter 42, and the air discharged to the outside through the discharge duct 41 is free of foreign substances such as paint molecules. Only air is released.

After the worker completes the painting work on the body of the vehicle 2 as described above, the worker exits the painting booth 1 and then closes the door 11 and operates a control box installed outside the painting booth 1. The blower 3 and the blower 4 are stopped to operate the near-infrared heater 5 and the air circulation device 6 to dry the paint coated on the vehicle 2 body.

When the near-infrared heater 5 is operated, when the electric heater 54 is heated to generate heat, the ruby coat 55 is also heated. The ruby coat 55 emits short-wave near-infrared heat rays when heated. A mineral ruby having a main component is formed, and the ruby coat 55 heated by the electric heater 54 emits a near-infrared heat ray, and the near-infrared heater 5 equipped with such a ruby coat 55 is provided. Is inclined at about 40 to 50 ° above the left and right sides of the vehicle 2 to directly radiate the near-infrared heat ray toward the vehicle 2 or reflect it by the reflecting plate 53 as shown in FIG. As the near-infrared ray is radiated in a short wavelength, the heat loss is short and the time to reach the body of the vehicle 2 is short and far. When faced with a paint coating to the car (2) body, causing an electrical resonator, so it is possible to thereby absorb heat energy in the coating speed-up the drying time of the paint coating on the automobile body.

In addition, the heated air in the work space 12 by the radiant heat of the near infrared heater 5 is introduced into the work space 12 by the air suction and discharge operation by the circulation fan 62 of the air circulation device 6. The convection is smoothly performed, and thus the heated air can be evenly contacted with the body of the vehicle 2, so that the paint painted on the vehicle 2 is dried by the near infrared heating beam radiated from the near infrared heater 5. As the drying proceeds actively by contact with the heating air by the convection action, it is possible to shorten the drying time of the paint painted on the vehicle.

According to the present invention as described above, it is possible to configure the coating drying apparatus by means of installing the near-infrared heater and the air circulation device only on both the left and right side walls of the existing automobile paint booth. Compared to the installation of far-infrared heaters, the installation cost and power consumption of the paint drying apparatus can be reduced, and the thermal efficiency is excellent and the drying time can be shortened.

Claims (3)

Opening and closing doors to allow cars to enter and exit, a work space formed with enough space to paint the paint while the worker moves around the car, and outside air to ventilate the inside of the work space A blower for sucking and blowing air to the work space, a ceiling supply passage for supplying air blown from the blower through the ceiling of the work space, and air supplied to the work space through the ceiling supply passage to the outside through the floor. And a ventilator for sucking the air in the work space and discharging the air into the outside through the bottom vent passage for discharging to the outside, and a case and a reflection plate having an arc-shaped cross section in the case and the inside thereof. It is formed of an electric heater installed in the longitudinal direction of one case body and enters into the coating booth. And based on the car in the paint booth that is provided with a plurality of near-infrared heater, which is installed in the left, a predetermined interval on the right side walls of the paint booth to allow the heat ray emitted from the left of the vehicle, the upper right side, The near-infrared heater is installed to surround the electric heater and ruby coat near-infrared, characterized in that it comprises a ruby coat made mainly of ruby, a mineral having the property of radiating near-infrared heat rays when heated to the heat generated by the electric heater Coating drying device using a heater. The method of claim 1, The left and right side walls of the painting booth further include an air circulation device installed at a position higher than the near infrared heaters to circulate air in the work space heated by the near infrared heating wires emitted from each near infrared heater by convection. Coating drying apparatus using a ruby coat near infrared heater, characterized in that there is. The method according to claim 1 or 2, The air circulation device installed in the painting booth has an inner case in which a circulation fan rotated by a motor is accommodated, and an outer case installed to surround the inner case in a dual structure, and the inner case has air. Inlet and outlet for suction and discharge is formed, the outer case is formed with a top inlet for inducing air intake from the upper side of the work space and a bottom outlet for discharging the air discharged by the circulation fan to the lower side of the work space. Painting and drying apparatus using a ruby coat near infrared heater, characterized in that.

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