KR100788503B1 - Dry apparatus for car-coating booth - Google Patents

Abstract

A drying device for a vehicle painting booth is provided to reduce the installation time and cost by easily installing a hot air passage and to secure high drying efficiency and to save energy by generating the hot air of desirable temperature with less energy. A drying device for a vehicle painting booth is composed of: a hot air supply unit(10) comprising a blower(11) and an electric heater(40) positioned at an outlet of the blower to heat the air flowing by the bower; a connecting pipe body(20') of which one end is combined with a hot air outlet of the heater and the other end is installed at the outer side in the booth to spray the hot air into the booth; and a suction pipe body(30) of which one end is connected to the inside of the booth and the other end is combined with an air suction port(13) of the blower, equipped with a filter installed at the spot before the hot air of the booth reaches the blower, in order to filter pollutants from the hot air. Plural hot air jetting holes are formed at the connecting pipe body. A supply pipe body(20) for jetting the hot air into the booth through the hot air jetting holes is connected to the connecting pipe body(20') in the booth.

Description

Drying apparatus for car paint booth {Dry apparatus for car-coating booth}

1 is a cross-sectional view of a conventional drying apparatus installed.

2 is a cross-sectional view of the drying apparatus according to the present invention.

Figure 3 is an enlarged cross-sectional view of the drying apparatus according to the present invention.

Figure 4 is an enlarged cross-sectional view of the nozzle of the drying apparatus according to the present invention.

5a and 5b is an exemplary view showing an installation state of the drying apparatus according to the present invention.

<Explanation of symbols for the main parts of the drawings>

10: hot air supply unit 11: blower

20: supply pipe 21: hot air jet

30: intake pipe body 31: filter

40: heater 41: outer case

42: inner case 43: heating element

44: inlet hole 45: hot air outlet

47: heating pin 50: nozzle unit

51: nozzle body 52: support

The present invention relates to a drying apparatus for an automobile paint booth. In detail, the passage through which hot wind is supplied is formed in a tubular shape to minimize heat loss when the hot wind proceeds to the inside of the booth, and the passage of the hot wind can be easily formed by the tubular configuration. By improving the configuration of the heater, it is possible to expect more rapid hot air generation and consequent energy savings, and it is possible to easily adjust the spray angle of the nozzle for injecting hot air to provide convenience for implementing optimized working conditions and working conditions. It relates to a drying apparatus for an automobile paint booth.

Painting of the vehicle is carried out by spraying a paint of a desired color is deposited by coating the paint on the outer surface of the vehicle body and then drying it.

In particular, recently used paints are environmentally friendly and have water as the main component instead of organic solvents which dissolve the paints. Therefore, since the paint is deposited on the outer surface of the vehicle body and the evaporation rate of moisture is slow, the drying speed is significantly slowed, and a drying apparatus for performing drying more quickly is proposed.

1 is a cross-sectional view showing a conventional configuration of the drying apparatus.

Referring to the drawings, the booth 1 for carrying out the painting of the vehicle is provided with a work space S into which the car A can be put, and the paint is dried on the upper and lower sides of the work space S. The supply passage 2 and the exhaust passage 3 for supplying and exhausting the hot air to the working space (S) is formed.

Here, the supply passage 2 is formed by sealing a part of the upper space of the booth with a separate partition (4). At this time, the partition 4 is formed in the form of a grill to allow the hot air to pass through the work space. In addition, the exhaust passage 3 is formed by forming a groove having a constant width and depth below the booth (1).

In this configuration of the booth 1, the drying apparatus 5 is installed outside the booth 1 to generate hot air, and the supply passage on the upper side of the booth 1 to advance the generated hot air to the supply passage 2. It is configured to communicate with (2). In addition, the exhaust passage (3) formed on the lower side of the booth (1) is configured to be connected to the filter (6) for filtering the paint exhausted with the hot air on the outside.

Here, the drying apparatus 5 is an electric burner or auxiliary heater, which is cheaper than fuel such as oil or coal and generates heat by electricity, and compressed air (hot air through the heater). It is composed of a blower unit for supplying) is the mainstream.

The conventional coating booth as described above is formed by supplying a hot air supply passage to seal a part of the upper space of the booth. The process for forming such a supply passage is very cumbersome, and excessive time and cost are required to form it. In particular, the supply passage is formed over a large space above the booth, and since the ceiling of the booth is part of the passageway (or installed in connection with the ceiling), the heat is radiated to the outside as the outside temperature is low. There is a problem that lowers the thermal efficiency when supplied to the workspace.

In addition, since the heater of the drying apparatus requires a strong fire power, a burner using oil can hardly be used, and a heater having a simple configuration in which an electric heater that generates heat by being supplied with electric power inside the case as an auxiliary fire means is installed. Since the fuel cost is high and hot air is generated at the desired temperature, it is difficult to shorten the time. Therefore, the heater of the drying apparatus is difficult to obtain a high thermal efficiency compared to the energy provided, and the problem of consuming a lot of energy to obtain the hot air of the desired temperature is exposed.

In addition, since the conventional hot air generated by the drying apparatus is mainly sprayed in the vertical direction from the ceiling and is also injected to the point where the vehicle is not located, a means for intensively spraying hot air to the paint is required.

The present invention has been invented to solve the above problems, by constituting a supply pipe that can move the hot air circulating electric heater and hot air to the dry portion with minimal heat loss, until the hot air is injected into the work space Minimizing heat loss, making it easier to install hot air flow passages, and generating hot air at the desired temperature can be carried out by quick and low energy supply, and hot air can be sprayed in the proper direction for the working conditions. It is an object to provide a drying apparatus.

In order to achieve the above object, the present invention has the following configuration.

The present invention includes a blower for generating and moving compressed air, and a hot wind supply unit comprising an electric heater coupled to an air outlet of the blower and heating air that is advanced by the blower; One end of the electric heater is coupled to the hot air outlet and the other end is installed outside the booth, and a plurality of hot air jet nozzles are formed to supply hot air to the inside of the booth through the hot air jet nozzles; One end is connected to the interior of the booth in communication, the other end is coupled to the air inlet of the blower, including the intake pipe body is provided with a filter for filtering contaminants in the hot air before the hot air inside the booth arrives at the blower. It is composed.

In particular, the electric heater, the outer case of which the air outlet of the blower is coupled to one end; It is installed inside the outer case so as to have an outer circumferential surface spaced from the inner circumferential surface of the outer case, the inlet hole is formed on the opposite side of the air outlet is coupled to the air supplied into the outer case, and proceeds to the inside An inner case having a hot air outlet at the end of which hot air is exhausted; It is installed on the side end formed with the inlet hole of the inner case is configured to include a heating element to generate heat by receiving external electric power. Here, the electric heater is configured to further include a heating fin is installed on the inner circumferential surface of the inner case is heated by the heating element to heat the air passing through the inner case.

In addition, the supply pipe is configured to be installed in the hot air jet nozzle nozzle angle adjustable nozzle unit. At this time, the nozzle unit, one end is introduced into the hot air spray port of the supply pipe, the other end is exposed to the outside of the supply pipe body, the outer surface is formed with a curvature of the sphere; It is configured to include a support coupled to the supply pipe body, the other end of the nozzle body is penetrated to prevent the position of the nozzle body in the hot air jet nozzle when the nozzle body is rotated angular.

Hereinafter, exemplary embodiments of the present invention to which the above configuration is applied will be described in detail with reference to the accompanying drawings.

2 is a cross-sectional view of the drying apparatus according to the present invention, FIG. 3 is an enlarged cross-sectional view of the drying apparatus according to the present invention, and FIG. 4 is an enlarged cross-sectional view of the nozzle of the drying apparatus according to the present invention.

Referring to the drawings, the drying apparatus according to the present invention comprises a hot air supply unit 10, the supply pipe body 20, the intake pipe body (30). Here, the coating booth to which the drying device is applied is formed a work space S for painting the automobile A in the booth 1, and an exhaust passage 3 as described above is provided below the booth 1. ) Is formed and configured. At this time, it is as well known that the installation of a coating device for spraying paint on the outer surface of the vehicle (A) is installed in the interior of the coating booth (1), which is omitted in the conventional configuration.

The hot air supply unit 10 is composed of a blower 11, the electric and electric heater (40).

The blower 11 is configured with a fan (mainly a cross flow fan is applied) and a motor or the like for rotating the fan. In particular, the blower 11 is composed of an air outlet 12 for injecting the air compressed by the fan on one side, and an air inlet 13 for sucking the air on the other side.

The electric and electric heater 40 is coupled to the air outlet 12 of the blower (11). The electric and electric heater 40 is composed of an outer case 41, an inner case 42, the heating element 43 to heat the air that is advanced by the blower (11).

The outer case 41 is coupled to one end of the air outlet 12 of the blower (11). The outer case 41 is formed in a cylindrical shape having a space in which the inner case 42 is installed, and is formed as a polygonal polygon having a polygonal cross section or a cylindrical body having a circular cross section.

The inner case 42 is installed inside the outer case 41. In particular, the inner case 42 is installed inside the outer case 41 to have an outer circumferential surface spaced apart from the inner circumferential surface of the outer case 41 to form an air passage between the outer case 41 and the inner case 42. It is configured to be. In addition, the inner case 42 penetrates through the side opposite to the side where the air outlet 12 of the blower 11 is coupled to the outer case 41, and the air supplied to the outer case 41 is introduced into the inner case 42. A ball 44 is formed.

At the same time, a hot air outlet 45 is formed through the inner case 42 at the opposite end of the side surface on which the inlet hole 44 is formed and through which the generated hot air is exhausted. At this time, the inner case 42 is closed by a cover 46 which opens on both sides of the open portion of the outer case 41, the hot air outlet 45 is formed on the cover 46 is configured .

The heating element 43 is installed in the cover 46 of the side end in which the inlet hole 44 of the inner case 42 is formed. Such a heating element 43 is to generate heat by receiving an external electric power may be applied in various forms such as a general rod shape or "U" shape.

In particular, the electric heater 40 is further provided with a heating fin 47 provided on the inner peripheral surface of the inner case 42. The heating fin 47 is heated by the heating element 43 and protrudes to the inside of the inner case 42 to heat the air passing through the inner case 42, and more quickly by the heating element 43. It is configured as a slim plate to be heated.

As shown in FIG. 3, the supply pipe 20 is connected to the connection pipe 20 ′ having one end coupled to the hot air outlet 45 and the other end installed outside the booth 1, and connected to the inside of the booth. do. At this time, the outside of the booth (1) means that the outer space of the work space (S), that is installed around the work space (S). In particular, the supply pipe body 20 installed in the booth is formed with a plurality of hot air jet sphere 21 is configured to spray hot air to the work space (S) through the hot air jet sphere (21).

In the supply pipe 20, the nozzle unit 50 is installed in the hot air jet port 21. The nozzle unit 50 is composed of a nozzle body 51 and a support body 52 in a configuration for adjusting the spray angle when hot air is injected.

One end of the nozzle body 51 is inserted into the hot air injection port 21 of the supply pipe 20, and the other end is installed to be exposed to the outside of the supply pipe 20. At this time, the nozzle body 51 has a configuration in which the outer surface is formed by the curvature of the sphere, and more specifically, the nozzle body 51 is configured in the form of the through-hole through which hot air passes through both sides of the sphere.

The support 52 is coupled to the supply pipe 20, and the other end of the nozzle body 51 penetrates and is installed. That is, the support body 52 is configured to prevent the nozzle body 51 from being displaced from the hot air jet nozzle 21 when the nozzle body 51 is rotated at an angle. To this end, the support 52 must be configured such that the point combined with the nozzle body 51 is formed with a curvature corresponding to the curvature of the sphere so that it can be supported by contacting the curvature portion on the centerline of the sphere.

The intake pipe body 30 is connected to one end and the working space (S) inside the booth (1), the other end is configured to be coupled to the air inlet (13) of the blower (11). Such an intake pipe body 30 is supplied to the inside of the work space S to recover a part of the waste heat which has been dried in the paint (the remaining part is discharged to the above-described exhaust passage) to generate hot air from the electric heater 40. It is a structure for improving efficiency.

In particular, the air intake pipe body 30 is a contaminant (paint dust) in the hot air (meaning the waste heat described above) that is sucked in the work space S at a point before the hot air inside the booth 1 arrives at the blower 11. Or a filter 31 for filtering other contaminants such as dust and the like.

In the drying apparatus configured as described above, the blower 11 is driven to perform the drying process, and the air is compressed by the blower 11 to proceed to the electric heater 40. Thereafter, the air entering the electric heater 40 proceeds to the passage between the inner and outer cases 42 and 41 and flows into the inner case 42 through the inlet hole 44 of the inner case 42. After being heated by the heating element 43, it proceeds through the hot air outlet 45.

At this time, the inner case 42 is heated by the heating element 43, the air proceeding to the passage of the inner case 42, 41 is first heated, after which the first heated air is a heating element Secondary heating is performed by (43), and the air is thirdly heated by the above-described heating fin 47 to be heated to a desired high temperature (approximately 350 ° C to 400 ° C) suitable for a drying operation.

The heated hot air proceeds to the supply pipe 20 through the hot air outlet 45, and the nozzle body 51 provided in the hot air jet port 21 of the supply pipe 20, more specifically, the hot air jet port 21. Pass through the spray to the workspace (S). At this time, the nozzle body 51 is controlled by the angle is injected at the desired injection angle, for example, maintaining the most injection angle to the vehicle (A) side can perform a faster drying process of the paint work The condition is optimized.

Thereafter, the finished hot air becomes waste heat, and part of the air is exhausted through the exhaust passage 3, and part of the hot air flows into the blower 11 through the intake pipe body 30, and contaminants are filtered by the filter 31. The hot air is generated again and supplied to the workspace S again. As a result, the electric heater 40 can generate a high temperature hot wind of high efficiency with less energy (electrical energy).

5a and 5b is an exemplary view showing an installation state of the drying apparatus according to the present invention.

Referring to the drawings, a plurality of the drying apparatus may be installed on the upper side of the work space (S) as shown in Figure 5a. Alternatively, as shown in FIG. 5B, the supply pipe 20 may be provided in plural numbers on both sides of the working space S, respectively. In particular, in order to obtain a higher drying efficiency, a plurality of the drying apparatus may be installed at the upper side and both sides in parallel with the configuration of FIGS. 5A and 5B.

As described above, in the present invention, heat loss until the hot air is injected into the work space by the tubular hot air passage is minimized, so that drying can be performed by high thermal efficiency, and the hot air passage can be more easily performed. It can be installed, which saves installation time and costs.

In addition, the present invention is improved in the configuration of the heater to produce a hot air of the desired temperature is carried out by a faster and less energy supply to obtain a high drying efficiency and energy saving effect.

 In addition, the present invention has the effect that the hot air is sprayed in a direction suitable for the working conditions by the spray angle adjusting configuration of the nozzle to obtain a better drying quality.

Claims (5)

A hot air supply unit comprising a blower, a heater positioned at the outlet of the blower and heating the air that flows through the blower, and one end is coupled to the hot air outlet of the heater, and the other end is installed outside the booth to bring the hot air into the booth. The connecting pipe is sprayed, one end is connected to communicate with the inside of the booth, the other end is coupled to the air inlet of the blower, and a filter for filtering contaminants from the hot air at the point before the hot air inside the booth arrives at the blower. In the drying apparatus for automobile paint booth including the intake pipe body, The heater for heating the air proceeds by the blower 11 is made of an electric heater 40, a plurality of hot air jet sphere 21 is formed in the connecting pipe (20 ') is hot air through the hot air jet sphere (21) Drying device for an automobile paint booth, characterized in that the supply pipe 20 for spraying the inside of the booth (1) is installed in the booth. The method of claim 1, wherein the electric heater 40 An outer case 41 having one end coupled to an air outlet 12 of the blower 11; It is installed inside the outer case 41 to have an outer circumferential surface spaced from the inner circumferential surface of the outer case 41, the air supplied to the outer case 41 on the opposite side to which the air outlet 12 is coupled is introduced into the inside An inner case 42 having an inlet hole 44 formed therein and having a hot air outlet 45 at the end thereof, through which the hot air generated is exhausted; Drying apparatus for an automobile paint booth, characterized in that it comprises a heating element (43) which is installed at the side end formed with the inlet hole (44) of the inner case (42) to generate heat by receiving external electric power. The method of claim 2, wherein the electric heater 40 It is installed on the inner circumferential surface of the inner case 42 is heated by the heating element 43 further comprises a heating fin 47 for heating the air passing through the inner case 42, the coating device for an automobile paint booth . According to any one of claims 1 to 3, wherein the supply pipe 20 Drying device for an automobile paint booth, characterized in that the nozzle unit 50 is installed in the hot air spraying opening (21) capable of adjusting the spray angle. The method of claim 4, wherein the nozzle unit 50 A nozzle body 51 having one end introduced into the hot air jetting port 21 of the supply pipe body 20, the other end of which is exposed to the outside of the supply pipe body 20, and whose outer surface is formed with a curvature of a sphere; A support 52 coupled to the supply pipe 20 and preventing the nozzle body 51 from being displaced from the hot air jet port 21 when the other end of the nozzle body 51 penetrates angularly. Drying device for an automobile paint booth, characterized in that it comprises a).

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