KR101206417B1 - Painting booth combined water and oil paint - Google Patents

Abstract

The present invention relates to a paint booth for both water and oil paint, comprising an intake port, an intake chamber provided with an intake fan, an intake filter mounted on an inlet side of the intake chamber, and an external air at a predetermined temperature. A heating device for heating, a drying chamber for drying the paint coated on the vehicle body with warm air heated to the temperature set by the heating device, and an upper air supply passage for transferring and supplying the warm air heated from the heating device from the heating chamber to the drying chamber; And a lower exhaust passage formed at a predetermined interval on the inner wall of the drying chamber, a lower exhaust passage formed at the bottom of the drying chamber and supplied to the interior of the drying chamber to transfer air used to dry the paint painted on the vehicle body, and the lower exhaust passage. An exhaust chamber provided with an exhaust fan for discharging the air used for drying through the air, and suctioned by the exhaust fan In the paint booth provided with an exhaust filter for filtering foreign matter into the air to be used, and an exhaust port for discharging the air blown from the exhaust fan to the atmosphere,
The air used for drying the fresh air sucked into the intake chamber by heat-exchanging the fresh air sucked from the outside through the intake port and the air used for drying discharged through the lower exhaust passage between the intake port and the exhaust port and the intake chamber and the exhaust chamber. The invention is characterized in that it comprises a first preheating chamber with a heat exchanger built in for preheating the waste heat and a second preheating chamber provided with a heat exchange plate.

Description

Painting booth combined water and oil paint}

The present invention relates to a coating booth for both water and oil paint, and more particularly, even if one of the drying conditions in the drying condition is selected from water based paint or oil paint, the paint work is smoothly made. In addition, by supplying warm air to the drying chamber, the paint painted on the car body is dried and the preheated fresh air can be supplied to the heating chamber by using the waste heat discharged to shorten the air heating time in the heating chamber. The present invention relates to a paint booth for both water and oil paint which can save electric energy at the same time.

In general, when painting new paint on a produced car body, a paint booth exclusively for automobiles having a dust blocking facility is used to prevent paint dust from scattering around.

The prior art paint booth is provided with a drying chamber having an entrance door for a vehicle, a heating chamber for heating and supplying air supplied to the drying chamber to a set temperature, an inlet for supplying fresh air to the heating chamber, and the drying chamber. It is equipped with an exhaust port for discharging the air used to dry the paint supplied to the body of the car to the outside, the existing coating booth is designed in a structure suitable for painting work mainly using a highly volatile oil paint In the paint booth that uses water-based paint that has no volatility, the paint booth not only prolongs the drying time of the water-based paint applied to the car body but also prevents the evaporation of water contained in the water-based paint. The disadvantage is that the phenomenon appears. Come.

Therefore, a paint booth for both oil paint and water paint has been proposed in Patent Registration No. 10-830228.

The above-mentioned patent is a means for supplying the warm air heated to a predetermined temperature in the drying chamber in a breeze and at the same time as a means for injecting air through the spray nozzles installed on the left and right sides of the drying chamber to dry the moisture contained in the aqueous paint by wind It is structured.

However, in the above-mentioned prior patent, since the fresh air introduced from the outside is directly heated by the heat source of the heater installed in the heating chamber and supplied to the drying chamber, the time required for heating the fresh air supplied to the heating chamber to a set temperature is long. It is pointed out that the problem is that it is inefficient because of the loss, and also uneconomical in terms of saving electric energy.

The present invention has been proposed in view of the above-mentioned problems in the prior art, and preheats fresh air by recovering heat from exhaust air by heat-exchanging fresh air introduced from the outside and air discharged after being used for drying in a drying chamber. It is possible to shorten the time required to heat the air to the set temperature in the heating chamber by supplying it to the heating chamber, and the warm air supplied when the warm air heated in the heating chamber is supplied to the drying chamber without causing a vortex inside the drying chamber. This prevents the paint dust from adhering to the interior walls and lighting of the drying chamber. Also, when painting with water-based paint, water is sprayed toward the car's body to allow water to evaporate into the wind. I also use oil paint. To the invention it aims to provide a paint booth that can.

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

Filters an intake chamber provided with an intake port for inhaling external air, an intake fan for forcibly injecting external air through the intake port, and foreign substances such as dust contained in the air sucked into the inlet side of the intake chamber An intake filter, a heating device installed in a heating chamber connected to an outlet side of the intake chamber, for heating external air blown from the intake fan to a set temperature, and receiving warm air heated to a temperature set by the heating device. A drying chamber for drying the paint painted on the vehicle body, an upper air supply passage installed to connect the ceiling of the heating chamber and the drying chamber to transfer and supply the warm air heated from the heating apparatus from the heating chamber to the drying chamber, and a predetermined interval on the inner wall of the drying chamber. Is installed in the lighting chamber to brightly illuminate the interior of the drying chamber, and is formed on the bottom of the drying chamber A lower exhaust passage for supplying air used to dry the paint coated on the vehicle body through the upper air supply passage, and an exhaust for sucking and exhausting air used for drying through the lower exhaust passage; A paint booth including an exhaust chamber provided with a fan, an exhaust filter for filtering foreign substances such as dust contained in the air sucked by the exhaust fan, and an exhaust port for exhausting air blown from the exhaust fan to the atmosphere. To

The air used for drying the fresh air sucked into the intake chamber by heat-exchanging the fresh air sucked from the outside through the intake port and the air used for drying discharged through the lower exhaust passage between the intake port and the exhaust port and the intake chamber and the exhaust chamber. It characterized in that it comprises a first preheating chamber with a heat exchanger for preheating the waste heat.

In addition, the heat exchanger installed in the first preheating chamber has a plurality of exhaust pipes formed in a tubular shape of a flat cross-section with both ends opened in a straight line, and the plurality of exhaust pipes have a zigzag-like spaced passage through which fresh air flowing through an intake port flows. It is configured to be arranged in a plurality of rows so as to form a heat exchange between the air used for drying flowing through the plurality of exhaust pipes and the fresh external air flowing along the separation passage formed between each of the exhaust pipes Characterized in that configured to.

In addition, the first preheating chamber is connected to the outlet side of the exhaust chamber, the exhaust inlet passage for guiding the air used for drying in the drying chamber to flow into the plurality of exhaust pipes arranged in the heat exchanger and an exhaust port for the air discharged to the exhaust pipe. An air exhaust passage for guiding the discharge to the air, and a fresh air inlet passage for guiding the fresh air introduced from the outside connected to the intake port to a separation passage formed between the exhaust pipes of the heat exchanger, and the air passing through the separation passage. Characterized in that the fresh air supply passage is formed to guide the flow into the intake chamber.

In addition, a second preheating chamber is further included between the intake chamber and the exhaust chamber, wherein the second preheating chamber includes an intake guide passage and a lower exhaust passage and an exhaust chamber connecting the fresh air supply passage and the intake chamber of the first preheating chamber. It characterized in that the exhaust guide passage for connecting the separation formed on the heat exchange plate as a boundary.

In addition, the heating device is formed of a structure in which an infrared lamp with a built-in heater and a plurality of heating tubes formed in a state surrounding the infrared lamp while the ventilation hole is formed on one side thereof are arranged in an up-down position. It features.

In addition, the inclined inner wall in which a plurality of lamps are installed to illuminate the interior of the drying chamber is formed at an inclination angle of 60 to 85 degrees downward toward the ceiling, and the inclined inner wall sprays compressed air supplied from the outside. A plurality of air spray nozzles are characterized in that formed at a constant interval.

According to the present invention, the fresh air sucked from the outside by using a heat exchanger installed in the first preheating chamber and the air used for drying the paint in the drying chamber are exchanged with the waste heat of the air used for drying. Preheating by car, and also by preheating the fresh air preheated by the heat exchanger once more in the second preheating chamber to the heating chamber to reduce the time required to heat the air to the set temperature in the heating chamber It provides the effect of saving the electrical energy and improves the thermal efficiency. The warm air blown from the ceiling of the drying room to the floor through the upper air supply passage does not generate vortices at an inclination angle of 60 ~ 85 ° downward. Drying chamber by guiding the smooth flow along the inclined inner wall The dust is generated when painting parts in a slope does not stick to the inner wall and the luminaire provides an effect that allows to maintain clean internal coating booth.

1 is an overall configuration diagram of a coating booth for explaining the present invention,
2 is a longitudinal sectional view of a heat exchanger mounted in a first preheating chamber of the present invention,
3 is a cross-sectional view taken along the line AA of FIG.
4 is a perspective view of a heating apparatus of the present invention,
5 is a cross-sectional view of the heating apparatus of the present invention.

Referring to the accompanying drawings, a specific embodiment of the water and oil paint coating booth according to the present invention will be described in detail as follows.

Reference numeral 1 denotes a paint booth, wherein the paint booth 1 is a drying chamber 2 through which an automobile can enter and exit, an inlet 3 for inhaling fresh air from outside, Intake chamber 4 equipped with an intake fan 40 that provides suction power so as to forcibly suck external fresh air through the intake port, and heating for heating fresh air forcedly sucked by the intake fan 40 to a predetermined temperature. The heating chamber 5 in which the apparatus 50 is installed, and the ceiling of the drying chamber 2 and the heating chamber 5 for supplying air heated to the set temperature by the heating apparatus 50 to the drying chamber 2. The upper air supply passage (2a) connecting the upper part of the, the exhaust chamber (60) for providing a discharge force for forcibly discharging the air used to dry the paint painted on the car body in the drying chamber (2) is installed Exhaust chamber 6, the drying chamber ( Lower exhaust passage 2b connecting the bottom of the exhaust chamber 6 with the bottom of the exhaust chamber 6, and an exhaust port 7 for discharging air discharged from the exhaust chamber 6 by the exhaust fan 60 to the outside atmosphere. ).

A feature of the present invention is to recover the waste heat of the air discharged after the paint drying in the drying chamber (2) to preheat the fresh air sucked from the outside through the inlet (3) to supply to the heating chamber (5) By doing so, it is possible to shorten the time for heating fresh air to the set temperature in the heating chamber 5, and at the same time to save the electric energy consumed by the heating device 50.

To this end, a first preheating chamber 8 and a second preheating chamber 9 are further provided between the inlet port 3 and the exhaust port 7, the intake chamber 4, and the exhaust chamber 6 to coat the paint booth 1. ).

First, the above-described first preheating chamber 8 will be described.

The first preheating chamber 8 is a fresh air inflow passage 81 and a fresh air supply passage 82 connected to the inlet port 3 by a heat exchanger 80, and an exhaust inflow passage 83 connected to the exhaust port 7. And exhaust exhaust passages 84 are formed, and the heat exchanger 80 is provided with a plurality of exhaust pipes 85 arranged in a plurality of rows in a tubular shape having a flat cross section with both ends opened in a straight line. 3, a separation passage 86 is formed between the plurality of exhaust pipes 85 to allow air to flow therebetween, and the heat exchanger 80 includes a plurality of exhaust pipes 85. In arranging in a plurality of rows, the exhaust pipes 85 forming rows and rows are arranged so as to be arranged to be offset from each other so that a space passage 86 formed between the exhaust pipes 85 is connected in a zigzag shape.

The heat exchanger 80 is configured so that both ends of each of the plurality of exhaust pipes 85 connect the exhaust inflow passage 83 and the exhaust discharge passage 84, and between the plurality of exhaust pipes 85. The separation passages 86 formed at are configured to connect the fresh air inflow passage 81 and the fresh air supply passage 82.

Therefore, the fresh air that is sucked into the intake port 3 passes through the separation passage 86 formed in the heat exchanger 80 through the fresh air inflow passage 81 and flows into the fresh air supply passage 82, and the drying chamber 2. ), The air used for drying the paint flows into the exhaust inflow passage 83 of the first preheating chamber 8 by passing through the exhaust chamber 6 to allow the interior of the plurality of exhaust pipes 85 formed in the heat exchanger 80. Passed through the exhaust discharge passage 84 to be discharged to the exhaust port 7, while the fresh air sucked in the inlet port 3 passes through the separation passage 86 of the heat exchanger 80 in a zigzag shape. Since the heat exchange effect with the air passing through the exhaust pipe (85) of the drying chamber (refer to the air of the warm air used for drying the paint in the drying chamber), the fresh air passing through the separation passage 86 of the heat exchanger 80 is a drying chamber. Preheated by taking away the calories State is supplied to the intake chamber (4).

Next, the above-described second preheating chamber 9 will be described.

The second preheating chamber (9) is formed between the intake chamber (4) and the exhaust chamber (6), and the inside of the intake guide passage (91) and the exhaust guide passage (92) with the heat exchange plate (90) as a boundary. It is formed to separate.

The intake guide passage 91 connects the fresh air supply passage 82 and the intake chamber 4 of the first preheating chamber 8, and the exhaust guide passage 92 has a lower exhaust passage 2b and an exhaust chamber ( 6) is formed to connect the structure.

On the other hand, between the intake guide passage 91 and the intake chamber 4 of the second preheating chamber (9) is equipped with an intake filter (41) for filtering foreign matter such as dust, the second preheating chamber (9) An exhaust filter 61 is provided between the exhaust guide passage 92 and the exhaust chamber 6 for filtering foreign matter such as dust contained in the air used for drying the paint in the drying chamber 2.

Another feature of the present invention is a heating tube (53) arranged up and down arranged in the heating chamber (5) the heating tube (53) configured to surround the infrared lamp 52 in which the heater 51 is built In this case, the fresh air supplied from the intake chamber 4 is heated to a set temperature.

Each heating tube 53 of the plurality of heating devices 50 has a larger diameter than the infrared lamp 52 because the heater 51 surrounds the infrared lamp 52 in which the heater 51 is embedded, and also the heating tube 53. ) Is a state in which the contact area with air is enlarged compared to the infrared lamp 52, and is arranged to be shifted up and down.

Therefore, the fresh air supplied from the intake chamber 4 is heated while passing zigzag between each of the heating tubes 53 arranged to be offset from each other is heated quickly.

In addition, a ventilation hole 54 is formed in the heating tube 53 of the plurality of heating devices 50 to prevent overheating of the infrared lamp 52.

Another feature of the present invention, the inclined inner wall 22 is installed downward from the upper air supply passage (2a) through the ceiling of the drying chamber 2, the lamp 21 is installed to brightly illuminate the interior of the drying chamber (2). The heated air supplied is configured to have a steep slope so as to flow smoothly along the wall without swirling vortex on the wall side, and the inclined inner wall 22 is coated with water-based paint even though It is provided with the air injection nozzle 23 which injects compressed air for efficiently evaporating the water which arises from an aqueous paint.

Since the inclined inner wall 22 is formed in a steep inclined state at about 60 to 85 degrees downward with respect to the ceiling of the drying chamber 2, the inclined inner wall 22 is formed from the ceiling side of the drying chamber 2 through the upper air supply passage 2a. Even if it flows downward along 22), the air flows to the wall along the inclined inner wall 22 without causing swirling vortex on the inclined inner wall 22 side. If the inclined inner wall 22 is inclined at an angle of 45 degrees or less toward the ceiling, the heated air supplied from the ceiling side of the drying chamber 2 does not flow along the inclined inner wall and swirls. Due to the vortex phenomenon, paint dust scattered during painting is concentrated in the swirling part of the air, which causes contamination of the interior of the drying chamber 2 due to the phenomenon that paint dust is attached to the inclined inner wall 22 and the lamp 21. Becomes Accordingly, the inclined inner wall 22 is formed at an inclination angle (60 to 85 °) of steep incline such that heated air supplied from the ceiling side of the drying chamber 2 to the inside flows well along the inner wall of the drying chamber 2. It is preferable.

In addition, the inclined inner wall 22 is provided with a plurality of air spray nozzles 23 at a predetermined interval, and the compressed air supply separately installed outside the drying chamber 2 through the plurality of air spray nozzles 23. It is configured to inject compressed air supplied from an apparatus (not shown).

Compressed air injected through the air spray nozzle 23 is to dry by evaporating the moisture contained in the water paint with the wind when performing the painting work using the water paint, and also to dry the car body using the water paint. When painting, it is possible to dry so that water droplets do not appear.

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

In order to paint the body of the vehicle, which is put into the drying chamber 2 of the painting booth 1 using oil paint or water paint, the intake fan 40, the heating device 50, and the exhaust fan 60 are used. While driving the external fresh air sucked through the inlet port 3 to the set temperature by the heating device 50 to supply the heated air through the upper air supply passage (2a) into the drying chamber (2), Air supplied to the drying chamber 2 and used to dry the paint coated on the vehicle body is discharged to the outside through the lower exhaust passage 2b, wherein the air discharged to the lower exhaust passage 2b is heated. By (50), it is the state discharge | emitted in the state holding the heat quantity of temperature lower than the temperature at the time of heating to a preset temperature.

Therefore, the air discharged to the lower exhaust passage 2b is arranged in the heat exchanger 80 at the exhaust inflow passage 83 side of the first preheating chamber 8 by the exhaust operation of the exhaust fan 60. While passing through the interior of each of the 85 to the exhaust discharge passage 84, the fresh air sucked in from the outside through the inlet port (3) by the suction operation of the intake fan 40 is the fresh air inlet passage 81 Pass through the separation passage 86 formed between the exhaust pipes 85 of the heat exchanger 80 in a zigzag flow to the fresh air supply passage 82, a plurality of exhaust pipes formed in the heat exchanger (80) The air (85) flowing in the interior (air discharged after being used for drying in the drying chamber) and the air flowing in a zigzag spaced separation path 86 (fresh air sucked from the outside) is a heat exchange action to each other as described above Zigzag along the separation path (86) The fresh air flowing intakes the second preheating chamber 9 through the fresh air supply passage 82 in a state where heat is removed from the heated air (air used for drying in the drying chamber) flowing through the respective exhaust pipes 85. It is introduced into the guide passage (91).

In addition, the air flowing into the intake guide passage 91 of the second preheating chamber 9 through the fresh air supply passage 82 of the first preheating chamber 8 and the second exhaust passage 2b from the lower exhaust passage 2b as described above. The air flowing into the exhaust guide passage 92 of the preheating chamber 9 is heat-exchanged with each other by the heat exchange plate 90, wherein the air flowing into the exhaust guide passage 92 is dried in the drying chamber 2. The heated air is used, and the air flowing into the intake guide passage 91 is fresh air passing through the separation passage 86 of the heat exchanger 80.

Therefore, the heat exchange plate 90 of the second preheating chamber 9 takes heat from the heated air flowing into the exhaust guide passage 92 to preheat the fresh air flowing into the intake guide passage 91. As described above, external fresh air sucked in through the intake port 3 by the suction operation of the intake fan 40 is transferred to the heat exchanger plate 90 of the heat exchanger 80 and the second preheating chamber 9 of the first preheating chamber 8. It is supplied to the heating chamber 5 in a preheated state by a heat exchange action with the air heated by the heat treatment, and the plurality of heating devices 50 installed in the heating chamber 5 are arranged to be offset from each other on the upper and lower sides. Fresh air in the heating chamber 5 is rapidly heated by the heat generated in the heating tube 53 when the air supplied to the heating chamber 5 passes zigzag between the plurality of heating apparatuses 50. It can shorten time to heat to set temperature .

And the air heated to the set temperature in the heating chamber 5 is blown to the ceiling side of the drying chamber 2 through the upper air supply passage (2a) and supplied into the drying chamber 2, that is, the upper end of the inner wall of the drying chamber (2) , The inclined inner wall 22 formed to be inclined downward from the ceiling is responsible for guiding the heated air supplied from the upper air supply passage 2a into the drying chamber 2 to flow along the inner wall without causing the vortex phenomenon. Therefore, the paint dust sprayed by spray painting in the drying chamber 2 can be discharged through the lower exhaust passage 2b without being attached to the inner wall of the drying chamber 2 or the lamp 21 cover. It is possible to maintain and maintain the drying chamber (2).

1: coating booth 2: drying chamber
2a: Upper air supply passage 2b: Lower exhaust passage
21: lighting 22: inclined inner wall
23: air spray nozzle 3: intake
4: intake chamber 40: intake fan
41: intake filter 5: heating chamber
50: heating device 51: heater
52: infrared lamp 53: heating tube
54: ventilation hole 6: exhaust chamber
60 exhaust fan 61 exhaust filter
7: exhaust port 8: first preheating chamber
80: heat exchanger 81: new inflow passage
82: new supply passage 83: exhaust inflow passage
84 exhaust gas passage 85 exhaust pipe
86: spaced passage 9: second preheating chamber
90: heat exchange plate 91: intake guide passage
92: exhaust passage

Claims (6)

Filters an intake chamber provided with an intake port for inhaling external air, an intake fan for forcibly injecting external air through the intake port, and foreign substances such as dust contained in the air sucked into the inlet side of the intake chamber An intake filter, a heating device installed in a heating chamber connected to an outlet side of the intake chamber, for heating external air blown from the intake fan to a set temperature, and receiving warm air heated to a temperature set by the heating device. A drying chamber for drying the paint painted on the vehicle body, an upper air supply passage installed to connect the ceiling of the heating chamber and the drying chamber to transfer and supply the warm air heated from the heating apparatus from the heating chamber to the drying chamber, and a predetermined interval on the inner wall of the drying chamber. Is installed in the lighting chamber to brightly illuminate the interior of the drying chamber, and is formed on the bottom of the drying chamber A lower exhaust passage for supplying air used to dry the paint coated on the vehicle body through the upper air supply passage, and an exhaust for sucking and exhausting air used for drying through the lower exhaust passage; An exhaust chamber provided with a fan, an exhaust filter for filtering foreign substances such as dust contained in the air sucked by the exhaust fan, an exhaust port for discharging air blown from the exhaust fan to the atmosphere, the intake port and an exhaust port And between the intake chamber and the exhaust chamber to exchange heat between the fresh air sucked from the outside through the inlet and the air used for drying discharged through the lower exhaust passage to preheat the fresh air sucked into the intake chamber with the waste heat of the air used for drying. In a booth with a first preheating chamber with a built-in heat exchanger for Standing,
The heat exchanger installed in the first preheating chamber has a plurality of exhaust pipes formed in a tubular shape having flat ends and flat ends at both ends, and the plurality of exhaust pipes are formed in a zigzag spaced apart passage through which fresh air flowing through the intake port flows. It is arranged to be arranged in a plurality of rows so that the air used for drying flowing through the plurality of exhaust pipes and the fresh external air flowing along the separation passage formed between each of the exhaust pipes is configured to heat exchange with each other Paint booth for water and oil paint, characterized in that the.
delete The method of claim 1,
The first preheating chamber is connected to an outlet side of the exhaust chamber, and exhausts air discharged to the exhaust pipe and an exhaust inlet passage for guiding the air used for drying in the drying chamber to flow into a plurality of exhaust pipes arranged in the heat exchanger. The air inlet passages for guiding the exhaust discharge passages to be guided and the fresh air flowing from the outside connected to the intake port to the separation passages formed between the exhaust pipes of the heat exchanger and the air passing through the separation passages to the intake chambers. Paint booth for both water and oil paint, characterized in that the new supply passage is formed to guide the flow.
The method of claim 1,
A second preheating chamber is further included between the intake chamber and the exhaust chamber, wherein the second preheating chamber connects an intake guide passage and a lower exhaust passage connecting the intake chamber and the intake chamber of the first preheating chamber. A water-based and oil-based paint booth, characterized in that the exhaust guide passage is formed by separating the heat exchange plate.
The method of claim 1,
The heating device is characterized in that the heater is a built-in infrared lamp, and a plurality of heating tubes formed in a state that surrounds the infrared lamp with a ventilation hole formed on one side of the upper and lower arrangements are arranged in a structure Paint booth for both water and oil paint.
The method of claim 1,
The inclined inner wall in which a plurality of lamps are installed to illuminate the interior of the drying chamber is formed at an inclination angle of 60 to 85 degrees downward with respect to the ceiling, and the inclined inner wall has a plurality of injecting compressed air supplied from the outside. Aqueous and oil paint coating booth, characterized in that the air spray nozzles are formed at regular intervals.

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