KR200413930Y1 - outer air supply device of painting booth for saving energy - Google Patents

Abstract

The present disclosure relates to a heater by connecting a bypass duct in which a heater is installed to an air supply duct for supplying external air during painting in a closed painting booth for painting a vehicle, a part thereof, an electronic product, and the like. In the rainy season, which is caused by a lot of moisture, the moisture contained in the air is removed and then supplied to the booth for painting. In winter, when the temperature of the outside air drops below zero, the outside air is heated to room temperature and then supplied to the booth for painting.

The external air supply device of the energy-saving painting booth according to the present invention is an apparatus for supplying external air to a painting booth which forms an atmosphere for painting work so that external air is supplied and the internal air is discharged to process the coating material. To

An air supply duct forcibly supplying external air to the painting booth by an air supply blower, and a damper for blocking external air is opened and closed;

A bypass duct connected so that the inlet side communicates with the damper upstream side of the air supply duct and the outlet side communicates with the damper downstream side of the air supply duct, and bypasses external air from the air supply duct to the painting booth;

Installed in the bypass duct and includes a heating means for heating the external air supplied to the painting booth through the bypass duct in the summer and winter.

Energy, Painting Booth, External Air Supply Device

Description

Outer air supply device of painting booth for saving energy

1 is a schematic diagram of an external air supply device for painting according to the prior art,

Figure 2 is a schematic perspective view of the external air supply of the energy-saving painting booth according to the present invention,

Figure 3 is an enlarged view of the main portion of the external air supply of the energy-saving painting booth according to the present invention,

Figure 4 is a state of use of the external air supply of the energy-saving painting booth according to the present invention.

* Explanation of symbols used in the main part of the drawing

50; An air blower

51; Painting booth

52; Damper

53; Air supply duct

54; Bypass duct

55; Filtration filter

56; Suction fan

57; Valve

58; Power heater

59; Temperature Detection Sensor

According to the present invention, a heater is installed in an air supply duct for supplying external air into a closed painting booth for painting a car, a part thereof, and an electronic product (hereinafter referred to as a "painting material"). By connecting the bypass ducts, the air supply duct and the bypass duct can be selectively used according to the external (outdoor) environmental factors. The present invention relates to an external air supply device for an energy-saving painting booth that can be supplied to a booth.

More specifically, during the painting work, the bypass duct that supplies the internal air to the inside of the painting booth is connected to the bypass duct in which the heater is built, and the moisture is generated by the heater to remove moisture contained in the air. The present invention relates to an external air supply device for an energy-saving painting booth, which is supplied to a booth, and in the winter season when the temperature of the outside air drops below zero, the outside air is heated to room temperature and then supplied to the booth for painting.

In general, forcibly discharging solvent vapor or atomized paint particles generated during painting to the outside of the workplace in order to improve the finish state of the painted surface of the coated material such as automobile or electronic products and to protect the fire and worker's health. In order to use the inside of the painting booth is sealed. At this time, the painting booth is classified into natural air supply forced exhaust type and forced air supply forced exhaust type, and it is optimal for environmental conditions such as temperature, humidity, and pressure inside the painting booth to maximize the effect of painting. It should be maintained in the state of.

As shown in Figure 1, the external air supply device for painting according to the prior art, the inner working space is sealed to maintain the painting working atmosphere, the coating material is automatically passed by the conveying means (not shown) The air supply chamber 3 and the air supply chamber 3 installed on one side of the booth 1 and provided with an air supply blower 2 for forcibly supplying external air to the inside of the booth 1, and the air supply chamber 3 exit side. And a heat exchanger (4) for heating the outside air at room temperature in winter to supply the inside of the booth (1), and to allow the paint particles, air, etc. in the booth (1) to be discharged to the outside. An exhaust duct 5 communicated with each other, and an exhaust blower 6 provided on the outlet side of the exhaust duct 5 for forcibly discharging the air inside the booth 1 to the outside.

In the drawing, reference numeral 7 denotes a filter installed at the front side of the air supply chamber 3 to filter foreign substances such as dust contained in external air, and 8 denotes a filter for filtering foreign substances contained in hot air flowing into the booth 1. 9 is a filter for filtering the solvent vapor or sprayed paint particles discharged from the booth (1), 10 is a filter for finally filtering the foreign matter contained in the air discharged to the outside of the workplace (indoors). to be.

In the prior art external air supply device for painting, when the outside air is directly supplied to the inside of the booth 1 during the painting work during the rainy season, when the rainy season generates a lot of moisture, or during the winter season when the mercury drops down to zero, The outside air is heated to normal temperature conditions by the heat exchanger 4 and supplied to the booth 1 so that a paint failure phenomenon that partially flows down does not occur. As a result, when installing an air conditioner including a heat exchanger (4) in a passage (called a duct) for supplying external air to the booth 1, oil or electricity for its operation is used, resulting in high maintenance costs. Since it takes a lot of money, small companies with relatively little capital and equipment have a problem of inferior competitiveness.

On the other hand, when installing a heater (not shown) in the passage communicating the air supply chamber (3) and the booth (1) described above, the painting work except the winter season when the temperature of the rainy season or the outside air that the moisture is generated a lot below zero In environmental conditions, the use of the heater is not necessary, so it must be removed, so management is difficult, and when the painting work is performed without removing the heater, the service life of the heater is greatly shortened.

The object of the present invention is to prevent the poor coating of the coating material due to the external air supplied to the painting booth even in the winter season when the temperature of the rainy season or the outside air is lowered below freezing due to external environmental factors during the painting work. It is to provide an external air supply device of an energy-saving painting booth.

Another object of the present invention is to minimize the cost and maintenance costs for the air conditioning system for heating the external air supplied to the painting booth during the painting work, so that the exterior of the energy-saving painting booth to have a competitive price in the industry It is to provide an air supply.

Still another object of the present invention is to provide an external air supply device for an energy-saving painting booth that is reliable in the industrial field because the coating material can be completely processed even under harsh environmental conditions. .

In the above object of the present invention, in the apparatus for supplying the external air to the booth for painting to form a painting work atmosphere so that the external air is supplied to the air to discharge the internal air to the coating material,

An air supply duct forcibly supplying external air to the painting booth by an air supply blower, and a damper for blocking external air is opened and closed;

A bypass duct connected so that the inlet side communicates with the damper upstream side of the air supply duct and the outlet side communicates with the damper downstream side of the air supply duct, and bypasses external air from the air supply duct to the painting booth;

It is achieved by providing an external air supply device for an energy-saving painting booth, which is installed in the bypass duct and includes heating means for heating external air supplied to the painting booth through the bypass duct in summer and winter. do.

According to a preferred embodiment, it further comprises a filtration filter for filtering foreign matter contained in the outside air flowing into the bypass duct inlet side described above.

The apparatus may further include a suction fan installed at the inlet side of the bypass duct and suctioning external air from the air supply duct to the bypass duct when the driving motor is driven.

In addition, the above-described bypass duct outlet side is installed so as to be open and closed further comprises a valve for opening in the summer and winter.

In addition, a power heater operated when power is applied is used as the above-described heating means.

The apparatus may further include a temperature detection sensor installed at an outlet side of the air supply duct and detecting a temperature of air supplied to the painting booth.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, which are intended to be described in detail so that those skilled in the art to which the present invention pertains can easily implement the present invention. It does not mean that the technical spirit and scope of the present invention is limited.

As shown in Figure 2 to 4, the external air supply device of the energy-saving painting booth according to the present invention, the external air is supplied from the outside of the workshop during the painting work and the internal air can be discharged to coat the coating material. In the device for supplying external air to the painting booth to form a painting work atmosphere,

The external air is forcibly supplied to the painting booth 51 by the air supply blower 50, and the damper 52 for blocking the external air is opened and closed by driving means (for example, a driving motor, a gear, etc. may be used). Air supply duct 53 (when possible, the damper 52 can be opened and closed by manual operation by an operator from the outside, or of course can be installed to open and close so as to be remotely operated by wire or wireless) and ,

The inlet side is connected so as to communicate with the upstream side of the damper 52 of the air supply duct 53, and the outlet side is connected so as to communicate with the damper 52 downstream of the air supply duct 53, and is external from the air supply duct 53. A bypass duct 54 for bypassing air to the painting booth 51,

It is installed in the bypass duct 54 and includes a heating means for heating the external air supplied to the painting booth 51 through the bypass duct 54 in the summer and winter.

At this time, preferably, the above-described bypass duct 54 further includes a filtration filter 55 for filtering foreign substances such as dust, dust, and the like contained in the outside air flowing into the inlet side.

In addition, the suction fan 56 is installed at the inlet side of the bypass duct 54 described above and sucks external air from the air supply duct 53 to the bypass duct 54 when the driving motor (not shown) is driven. It includes more.

In addition, the above-mentioned bypass duct 54 further includes an opening and closing valve 57 which is installed to open and close at the exit side and is open in summer and winter when moisture is generated. At this time, the opening and closing valve 57 may be installed to be opened and closed to be opened and closed by manual operation by an operator from the outside, or to be remotely controlled by wire or wireless.

In addition, as the above-described heating means, a power heater 58 (for example, a heater of 5 to 10 kw capacity may be used) that is operated when power is applied may be used.

The apparatus further includes a temperature detection sensor 59 installed at an outlet side of the air supply duct 53 and detecting a temperature of air supplied into the painting booth 51.

In the drawings, reference numeral 60 is a control valve installed in the air supply duct 53 to which the inlet side of the bypass duct 54 described above is connected, and adjusts the intake air volume from the outside of the workplace, and 61 is a booth for painting ( 51 is a control box for controlling the temperature of the outside air supplied to the painting booth 51 according to the temperature value detected by the temperature detecting sensor 62 installed therein, and 63 is a side wall of the painting booth 51. It is installed on the inside and is a filtration filter for filtering foreign substances such as dust flowing into the painting booth 51 from the workshop during painting work, 65 is the outside of the air containing the paint particles, etc. sprayed from the painting booth 51 Exhaust duct discharged to

Hereinafter, with reference to the accompanying drawings an example of the use of the external air supply of the energy-saving painting booth according to the present invention will be described in detail.

As shown in FIG. 4, the coating material P (for example, automobile parts may be applied) is mounted on a conveying means (for example, a conveyor may be used) that continuously passes through the painting booth 51. When the inside of the paint booth 51 is transported, the coating material is sprayed in the sprayed state by the spray nozzle N which is repeatedly transported in a direction perpendicular to the conveyor transport direction to paint the coating material P. Can be.

At this time, the external air is supplied to the painting booth 51 through the air supply duct 53 during painting work, and at the same time, dust from the painting booth 51 corresponds to the amount of air flowing into the painting booth 51. Air containing paint particles or the like in a sprayed state is discharged to the outside through the exhaust duct 65. At this time, the paint particles, dust, etc. in the spray state generated in the painting booth 51 is filtered by a filtration filter (not shown) installed in the exhaust duct 65 and discharged to the outside of the painting workshop in a clean state.

On the other hand, if the environmental factors outside the workplace, that is, the winter season when the mercury wine goes below zero, the adhesive force of the paint is peeled off from the coating material (P) due to cold external air to prevent peeling of the defective coating of the coating material (P) Can be.

In detail, the driving means of the damper 52 installed in the air supply duct 53 when the temperature of the external air supplied to the air supply duct 53 by the driving of the air supply fan 50 is lowered below zero. (For example, a driving motor, a gear, etc. may be used) to manually or automatically close the air supply duct 53 passage, and operate the on / off valve 57 installed at the bypass duct 54 outlet side. Open the exit side of the pass duct 54. In this case, since the technical contents of opening the damper 52 and the on / off valve 57 are substantially included in the art used in the art, detailed description thereof will be omitted.

For this reason, the external air flowing into the air supply duct 53 from the outside of the workplace when the air blower 50 is driven as described above is bypassed along the bypass duct 53 bypassed to the air supply duct 53. It is supplied to the painting booth 51.

At this time, the cold external air supplied through the bypass duct 53 and supplied into the painting booth 51 is operated at room temperature (generally, 5 ° C. or more) due to the operation of the power heater 58 installed in the bypass duct 53. Heating), it is possible to supply air at room temperature in the booth 51 for painting even in winter.

Therefore, when the external air supplied to the above-mentioned coating booth 51 is a workplace external environmental factor, that is, a sub-zero weather condition, it is possible to prevent the poor coating of the coating material P due to cold air.

On the other hand, since the temperature value (generally, 10 ° C. or more) detected by the temperature detection sensor 62 installed inside the above-described coating booth 51 is input to the control box 61 described above, The temperature of the outside air supplied to the painting booth 51 along the bypass duct 54 can be adjusted according to the temperature inside the booth 51. That is, the temperature of the air supplied to the painting booth 51 may be adjusted by adjusting the temperature of the power heater 58 installed in the bypass duct 54. At this time, the temperature of the air supplied to the painting booth 51 can be confirmed by the temperature detection sensor 59 provided at the outlet side of the air supply duct 53.

As described above, by using the power heater 58 installed in the bypass duct 54 to heat the outside air supplied to the painting booth 51 in the winter when the temperature of the outside air drops below zero, the painting booth The cost for the operation and maintenance of the air conditioner for heating external air supplied to (51) can be reduced.

On the other hand, in the case of the environmental factors outside the workplace, that is, the rainy season iron that generates a lot of moisture, prevent the defective coating of the coating material (P) due to the moisture contained in the external air supplied to the painting booth 51. can do. In detail, the damper 52 installed in the air supply duct 53 is operated to close the air supply duct 53 and the bypass valve 57 installed at the outlet side of the bypass duct 54 opens the bypass. The outlet side of the duct 54 is opened.

For this reason, the external air flowing into the air supply duct 53 from the outside of the workplace when the air supply blower 50 is driven as described above passes through the bypass duct 53 connected to the air supply duct 53 and is painted. The booth 51 is supplied. At this time, the moisture contained in the outside air supplied through the bypass duct 53 and supplied to the inside of the painting booth 51 is dehumidified due to the operation of the power heater 58 installed in the bypass duct 53, so that the rainy season has much rain. Also, suitable external air required for the painting work can be supplied into the painting booth 51.

Therefore, it is possible to prevent the poor coating of the coating material (P) due to the excessive moisture contained in the outside air supplied to the above-described coating booth 51.

On the other hand, the above-described automotive parts as the coating material (P) has been described as an example, the coating material (P) can be applied to electrical and electronic parts such as automobiles, mobile phone parts, including the automotive parts, of course.

As described above, the external air supply device of the energy-saving paint booth of the present invention has the following advantages.

Even during the rainy season, when humidity is frequently generated due to external environmental factors during the painting work, or even during the winter season when the temperature of the outside air drops below freezing, it is possible to improve the work efficiency because the poor coating of the coated material to be treated in the closed booth is prevented. have.

In addition, cost competitiveness is minimized by minimizing the cost and maintenance cost required for the air conditioning system to heat external air supplied to the painting booth during painting, and can be utilized by companies with small capital and scale in the same industry. Has practicality.

In addition, since the coating material can be completely processed even under harsh environmental conditions during painting, it is reliable from the supplier of the coating material in the same industry.

Claims (6)

In a device for supplying external air to a painting booth which forms an atmosphere for painting work so that the outside air is supplied and the inside air is discharged so that the coating material can be coated: An air supply duct forcibly supplying external air to the painting booth by an air supply blower, and a damper for blocking external air being opened and closed; A bypass duct connected to the inlet side to communicate with the damper upstream of the air supply duct, and the outlet side to communicate with a damper downstream of the air supply duct, and bypass the external air from the air supply duct to the painting booth; And Installed in the bypass duct and the outside air supply apparatus of the energy-saving painting booth, characterized in that it comprises a heating means for heating the external air supplied to the painting booth through the bypass duct in the summer and winter. The external air supply device for an energy-saving painting booth according to claim 1, further comprising a filtration filter for filtering foreign substances contained in the outside air flowing into the bypass duct inlet. The booth for energy saving painting according to claim 1, further comprising a suction fan installed at the inlet side of the bypass duct, and configured to suck external air from the air supply duct into the bypass duct when the driving motor is driven. External air supply. The external air supply device for an energy-saving painting booth of claim 1, further comprising an opening and closing valve installed at the bypass duct outlet side, the opening and closing valve being opened in summer and winter. The external air supply device for an energy-saving painting booth according to claim 1, wherein a power heater operated when power is applied is used as the heating means. The external air supply apparatus of claim 1, further comprising a temperature detecting sensor installed at an outlet side of the air supply duct and detecting a temperature of air supplied to the painting booth. .

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