KR20140002454U - The Air Amplifier for Painting Dry and Ventilation - Google Patents

Abstract

The present invention relates to a blower for blowing air by blowing compressed air for drying and ventilation inside the block, is produced by injection molding in a plastic material for weight reduction, the blower, the compressed air input end nozzle 120 is connected to the front end Compressed air air hose 110, the compressed air ON / OFF valve 130 is installed; A joint 140 installed to branch the compressed air to the other end of the compressed air air hose 110; Both end portions of the pipe are connected to both ends of the joint 140, the ventilator 150 is formed to bend to form a pipe surface; Comprising a plurality of compressed air main injection port 160 is formed in the pipe of the air blowing unit 150 to face forward, in the vicinity of the compressed air main injection port 160, to reduce noise and improve the injection efficiency A plurality of compressed air auxiliary injection port (160a) is characterized in that formed. According to the present invention, by changing the material of the blower to plastic, the weight of the blower can be reduced, and it is easy for the worker to move, install and dismantle, thereby improving work efficiency and improving maintenance performance. By forming separately, noise reduction and injection efficiency can be improved.

Description

The Air Amplifier for Painting Dry and Ventilation

The present invention relates to an integrated blower for painting drying and ventilation, and more particularly to an integrated blower for painting drying and ventilation to efficiently distribute the compressed air supplied for drying and ventilation inside a block in a ship manufacturing process.

In order to dry the paint inside the vessel / block, fast drying occurs when the inflow of external air is well done, so for this purpose, the paint is dried using compressed air that meets the purpose of explosion-proof and dust-proof. Or compressed air is also used for the purpose of worker ventilation for the protection of workers by welding.

The blower used for painting drying and ventilation of workers in ship is mainly used blower using compressed air which is explosion proof and dustproof. According to the blowing method used, there exists a one-nozzle method and a multi-nozzle method. The configuration is as follows.

The one-nozzle method has a structure in which the compressed air supplied to the end of the air hose can be continuously injected, and 1/2 inch or 1 inch one nozzle is most used.

Figure 1 is a photograph showing a typical 1 / 2-inch one-nozzle nipple (a) and installation (b). In this way, the one-nozzle system is provided with a nipple (2) having an ON / OFF valve at the front end of the air hose (1) so as to spray compressed air supplied as it is.

However, since the one-nozzle method injects the compressed air as it is, not only causes a tremendous noise (over 100 dB) that the operator is hard to endure, but also consumes compressed air.

Figure 2 is a photographic view of a typical one-inch silencer attachment one-nozzle nipple. Since enormous noise is generated in the one-nozzle method, the silencer 3 is used as shown in FIG. 2.

3 is a photographic view showing a conventional multi-nozzle central positioning blower (a) and a multi-nozzle edge positioning blower (b).

In the multi-nozzle method, a small hole (5, 5 ') is disposed at the edge or the center of the cylindrical pipe (4) (4') due to the pressure difference generated when the compressed air is injected at high speed or high pressure. The outside air flows from the cylindrical inlet on the opposite side, which increases the amount of air actually blown compared to the actual compressed air. In other words, by blowing the multi-nozzle compressed air arranged by the nozzle having a small hole at the center or the edge of the cylinder in one direction, the outside air flows in from the opposite cylindrical inlet and amplifies the air volume.

By the way, the one-nozzle system is equipped with a nipple having an ON / OFF valve at the front end of the air hose, so as to inject the compressed air as it is, not only causes a huge noise (100dB or more) that the operator is difficult to endure, but also compressed air Large consumption

In addition, the multi-nozzle method produces a larger amount of air volume as well as a significantly reduced noise even with a smaller amount of compressed air than the one-nozzle method. However, it has a disadvantage that it is expensive compared to the one nozzle method.

Therefore, due to the manufacturing cost problem, the site uses the one-nozzle method a lot, the worker is exposed to the noise problems and energy problems due to excessive consumption of compressed air.

On the other hand, a blower that was recently developed to efficiently distribute while reducing the discharge amount in order to reduce the amount of compressed air for drying and ventilation inside the block is effective to compensate for the above-mentioned disadvantages, but there are still some areas to be compensated for in terms of product price and weight. have. In other words, steel round pipe bending, welding and injection hole processing requires a lot of time, the product price is expensive disadvantages, and relatively heavy, the worker has difficulty in mobile installation, and even if it is expensive product due to falling during disassembly There is a disadvantage that there is a lot of replacement demand.

Accordingly, the present invention is to solve the above problems, and by changing the material of the blower to a soft plastic to reduce the weight, the operator is easy to move, install and dismantle, and also to reduce the noise by forming an auxiliary injection hole around the main injection hole It is an object of the present invention to provide an integrated blower for drying and ventilating the paint to improve the spraying efficiency.

In order to achieve the above object, the integrated blower for painting drying and ventilation according to the present invention is a blower for blowing air by blowing compressed air for drying and ventilation inside the block, produced by injection molding in a plastic material for weight reduction It is characterized by.

Here, the blower is a blower that blows compressed air through a compressed air air hose is connected to the compressed air input end nozzle at the front end, the compressed air ON / OFF valve is installed, compressed to the other end of the compressed air air hose A joint installed to branch the air; Both end portions of the pipe are connected to both ends of the joint is installed, the exhaust portion is bent to form a pipe surface; It may be configured to include a plurality of compressed air injection nozzles are formed to face the pipe in the vent portion forward.

In addition, the blower is a blower for blowing the compressed air through the compressed air air hose is connected to the compressed air input end nozzle at the front end, the compressed air ON / OFF valve is installed, the end is the other end of the compressed air air hose A ventilating part in which a blocked pipe is connected and installed, and the pipe is bent to form a plane; A compressed air spray nozzle having a plurality of nozzles formed on the pipe of the exhaust part so as to face forward; A gas hose having a gas input end nozzle connected to the front end and having a gas ON / OFF valve installed thereon; It may be configured to include a heater connected to the other end of the gas hose and installed to be located inside the exhaust portion.

In addition, a plurality of compressed air auxiliary injection holes may be formed around the compressed air main injection hole to reduce noise and improve injection efficiency.

In addition, the exhaust portion, it may be configured in any one of the shape of the polygon including a spiral, arc, spring, square or triangle.

In addition, the blower may be configured to further include a blower fixing device which is installed to support and fix the blower.

In addition, the ventilator fixing device may be configured as any one of a permanent magnet or a clamp device attached to the hull using a permanent magnet.

The exhaust fan may include a gas hose connected to a gas input nozzle at a front end thereof and provided with a gas ON / OFF valve; It may be configured to further include a heater connected to the other end of the gas hose and installed to be located inside the exhaust portion.

The ventilator may include: a first pipe in which a plurality of compressed air injection nozzles are formed in a forward direction; It may be composed of a second pipe having a diameter larger than the diameter of the first pipe, the second pipe formed with a plurality of compressed air jetting nozzles in a forward direction, and the plurality of compressed air jetting nozzles are alternately arranged with each other. have.

The ventilator may include: a first circular pipe connected to the compressed air hose through a coupler and having a plurality of compressed air jet nozzles in a forward direction; A second pipe having a diameter different from that of the first circular pipe and having a plurality of compressed air jet nozzles in a forward direction; Including a plurality of pipe connecting portion for cutting the first pipe and the second pipe in a plurality of positions, respectively, to connect the tee-shaped pipe rotatably and connect the tee-shaped pipe connected to the first pipe and the second pipe by a connecting pipe. Can be configured.

In addition, the exhaust portion may be configured to change the position by assembling the pipe connection after changing the position of the first pipe and the second pipe before and after by separating the pipe connection and rotating the tee-shaped pipe.

According to the present invention, by changing the material of the blower to plastic, the weight of the blower can be reduced, and it is easy for the worker to move, install and dismantle, thereby improving work efficiency and improving maintenance performance. By forming separately, noise reduction and injection efficiency can be improved.

In addition, it is possible to improve the efficiency of the blower by blowing the compressed air to be dispersed through the compressed air main injection port of the exhaust portion, it is possible to effectively use the compressed air has the effect of reducing the compressed air energy.

In addition, the present invention is not only easy to manufacture but also low cost of the parts used to be manufactured inexpensively, and less noise than the existing method, the effect that can be used for ventilation purposes of the operator during the painting / welding work in a closed space There is.

In addition, the present invention by heating the wind of the high wind blowing from the exhaust through the heater to supply a high temperature dry wind inside the pipe to evaporate the remaining water in the pipe to the pipe exit to the opposite side of the inside of the pipe There is an effect that drying occurs quickly.

Figure 1 is a photograph showing a typical 1 / 2-inch one-nozzle nipple (a) and installation (b).
Figure 2 is a photographic view of a typical one-inch silencer attachment one-nozzle nipple.
Figure 3 is a photograph showing a conventional multi-nozzle central positioning blower (a) and a multi-nozzle edge positioning blower (b).
Figure 4 is a view showing an integrated blower for painting drying and ventilation according to the first embodiment of the present invention.
5 is a view showing an integrated blower for painting drying and ventilation according to a second embodiment of the present invention.
6 is a modified embodiment of FIG.
FIG. 7 is a detailed view of some components of FIG. 6; FIG.
8 is an exemplary view of the front side of the air blowing unit.
9 and 10 are exemplary views configured by changing the front and rear positions of the first pipe and the second pipe of the exhaust fan according to the second embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. It will be appreciated that those skilled in the art can change or modify the embodiments without departing from the scope and spirit of the invention.

Figure 4 is a view showing the integrated blower for drying and ventilating paint according to the first embodiment of the present invention, Figure 5 is a view showing the integrated blower for drying and ventilation according to a second embodiment of the present invention, Figure 6 5, FIG. 7 is a detailed view of a part of FIG. 6, FIG. 8 is a front view of the ventilating unit, and FIGS. 9 and 10 are a first pipe and a second pipe of the ventilator according to the second embodiment of the present invention. It is an exemplary figure comprised by changing the front-back position of a pipe.

The integrated blower for drying and ventilating the paint according to the present invention is lightened by changing the material of the blower to soft plastic so that the operator can easily move, install and dismantle the air. It is the technical point that the noise reduction and the injection efficiency can be improved.

That is, the integrated blower for drying and ventilating the paint according to the present invention is injection molding into a lightweight material such as a soft plastic material so as to reduce manufacturing costs and simplify movement, installation and dismantling by simplifying manufacturing and processing. In addition, in order to reduce noise and improve the injection efficiency, compressed air auxiliary injection holes are separately formed around the compressed air main injection holes.

As shown in FIG. 4, the integrated blower 100 for drying and ventilating the paint according to the first embodiment of the present invention has a form that can be effectively used in a large block and a large work space. Looking at the configuration, a compressed air air hose 110 is connected to the compressed air input end nozzle 120, the compressed air ON / OFF valve 130 is installed, and the other end of the compressed air air hose 110 A joint 140 installed to branch the compressed air in the air, and both ends of the pipe are connected to both ends of the joint 140, and the air blowing unit 150 is formed to bend to form a pipe surface; Comprising a plurality of compressed air main injection hole 160 is formed so as to face the pipe in the front portion 150.

In this case, a plurality of compressed air auxiliary injection holes 160a are formed around the compressed air main injection hole 160 to reduce noise and improve injection efficiency.

The vent part 150 may be formed in any one of a polygonal shape including a spiral, an arc, a spring, a square, or a triangle.

4 is an exemplary view showing the structure of the helical air blowing unit 150, the compressed air air hose 110 is extended to form a helical air blowing unit 150.

On the other hand, the integrated blower 100 for drying and ventilating the paint according to the first embodiment of the present invention may further include a blower fixing device 170 that can firmly fix the support by the blower, Figure 4 In the example of the blower fixing device 170, a configuration including a permanent magnet is configured to be fixed to the hull of the working position.

As the apparatus for fixing the exhaust fan 100, since most of the ship is a ferrous metal with a magnetic material, it is possible to fix the exhaust fan by using a magnet, and a clamp or the like may be used in place of the magnet in order to use the non-magnetic material.

According to the present invention as described above, the compressed air supplied through the compressed air air hose 110 is uniformly supplied to both ends of the pipe of the air blowing unit 150 by the joint 140 through the compressed air main injection hole 160 The wind speed and amount of air are sprayed equally. Therefore, since the shape of the air blowing unit 150 forms a plane, the compressed air to be injected can blow the compressed air to a predetermined surface area so that the compressed air can be effectively dispersed and sprayed.

Therefore, compared to the method of intensively spraying through the air hose end as in the conventional air blower, since the surface spraying method can greatly increase the area to be ventilated, and the compressed air is injected through the main injection holes 160 so as not to waste compressed air. It can be sprayed efficiently without.

On the other hand, the integrated blower 100 for drying and ventilating the first embodiment according to the present invention is the gas hose 200 is connected to the gas input end nozzle 180 at the tip, the gas ON / OFF valve 190 is installed And a heater 210 connected to the other end of the gas hose 200 and installed to be located inside the air blowing unit 150. Therefore, by adjusting the gas ON / OFF valve 190 according to the characteristics of each pipe, it is possible to quickly and effectively dry the inside of the pipe by supplying high temperature and dry wind to the inside of the pipe.

In general, in order to check the performance of the pipe when the ship and offshore structures are constructed, the high performance water is filled in the pipe to check the performance of the pipe. At this time, in order to prevent rust inside the pipe, the rust inhibitor is added to the water used for the hydro test, and all the waste water used is collected and treated as industrial waste. However, even after adding the rust preventive agent, the shape of the pipe is complicated after the test and the pipe inner diameter is various, so that the rust may be generated due to the inability to collect all the moisture in the pipe.

In the present invention, since the complete water removal and drying inside the pipe is made, the cost of treating wastewater, which is industrial waste due to the use of the rust inhibitor and the use of the rust inhibitor, which is used in the existing pipe hydro testing is reduced.

In addition, the air blowing unit 150 has a diameter larger than a diameter of the first pipe 151 and the first pipe 151 in which the plurality of compressed air main injection holes 161 are formed in the direction toward the front, and the front side thereof. The second pipe 152 is formed with a plurality of compressed air main injection port 162 in the direction toward the direction, and the plurality of compressed air main injection ports 161, 162 can be arranged to be alternate with each other. As a result, a larger amount of external air can be introduced, and thus a larger amount of air can be generated.

Looking at the action of the integrated blower 100 for drying and ventilating the paint according to the first embodiment of the present invention, it is composed of a small cause first pipe 151 and a large cause second pipe 152 outside and the compressed air joint By the 140, the first and second pipes 151 and 152 are uniformly supplied, and the maximum amount of air can be generated by using the minimum amount of compressed air in consideration of the compressed air input amount of the nozzle size for the injection. In addition, it can be used for intake / exhaust by attaching to the inlet and the outlet and the structure inside the sealed ship block using the fixing device 170, it is possible to operate more effectively in large blocks and workshops.

As shown in FIG. 5, the integrated blower 300 for painting drying and ventilation of 2nd Embodiment which concerns on this invention has the form which can be effectively used in a small block and a narrow space. Looking at the configuration, the compressed air input end nozzle 320 is connected to the front end, the compressed air air hose 310, the compressed air ON / OFF valve 330 is installed, and the other end of the compressed air air hose 310 A pipe having an end blocked at the end thereof is connected to the air exhauster 340 which is bent to form a pipe; Comprising a plurality of compressed air main injection port 350 is formed so as to face the pipe of the exhaust portion 340 to the front.

At this time, a plurality of compressed air auxiliary injection holes 350a are formed around the compressed air main injection hole 350 to reduce noise and improve injection efficiency.

5 is an exemplary view showing a spirally ventilated part 340, and is formed in a spirally vented part 340 by extending the compressed air air hose 310.

On the other hand, it is further configured to include a blower fixing device 360 is installed in the middle of the compressed air air hose 310 to support and fix the blower, in the example of Figure 5 as a blower fixing device 360 It is configured to be fixed to the hull at the working position with a configuration including permanent magnets. As a device for fixing an exhaust fan, since most of the ships are made of a magnetic metal having a magnetic material, the exhaust fan can be fixed by using a magnet, and a clamp or the like can be used in place of the non-magnetic material.

In addition, the spiral pipe of the exhaust portion 340 is made of a flexible pipe such as copper pipe to pull the inner end forward or pushed back in such a way that the spiral pipes of the outer line and the inner line position each other in the front and rear directions It is configured to be adjusted to be positioned at another position.

According to the present invention as described above, the compressed air supplied through the compressed air air hose 310 is supplied to the pipe of the blower 340 is injected through the compressed air main injection port 350. Therefore, since the shape of the exhaust portion 340 forms a plane, the compressed air to be injected can blow the compressed air to a predetermined surface area so that the compressed air can be effectively dispersed and sprayed.

Therefore, compared to the method of intensively spraying through the air hose end as in the conventional air blower, since the surface spraying method can greatly increase the area to be blown, and the compressed air is injected through the main injection holes 350, so it does not waste compressed air. It can be sprayed efficiently without.

On the other hand, the integrated air blower 300 for drying and ventilating the paint according to the second embodiment of the present invention has a gas hose 390 to which a gas input end nozzle 370 is connected at the front end and a gas ON / OFF valve 380 is installed. And a heater 400 connected to the other end of the gas hose 390 and installed to be located inside the exhaust part 340. Therefore, by adjusting the gas ON / OFF valve 380 according to the characteristics of each pipe, the inside of the pipe can be quickly and effectively dried by supplying high temperature and dry wind to the inside of the pipe.

6 is a schematic view of a ventilator according to another embodiment of the present invention, FIG. 7 is a detailed view of some components of FIG. 6, and FIG. 8 is a front view of the ventilator.

As shown therein, the ventilator 340 is connected to the compressed air hose 310 and the coupler 343, and has a circular first air inlet 350 formed with a plurality of compressed air main nozzles 350 in a forward direction. A second pipe 342 having a diameter different from that of the first pipe 341 and the first circular pipe 341, and having a plurality of compressed air main injection holes 350 formed in a forward direction; Each of the pipes 341 and the second pipe 342 is cut at a plurality of positions, respectively, to connect the tee-shaped pipes 344a and 344b to be rotatable, and to be connected to the first pipe 341 and the second pipe 342. It comprises a plurality of pipe connecting portion 344 connecting the tee-shaped pipes 344a and 344b to be the connecting pipe 344c.

9 and 10, the pipe connection part 344 is removed, and the tee-shaped pipes 344a and 344b are rotated to position the first pipe 341 and the second pipe 342. After changing the before / after, it is configured to change the position by assembling the pipe connection 344.

The exhaust fan according to the present invention configured as described above is similar to the arrangement of several nozzles such as the multi-nozzle method in which the nozzles are positioned at the edges, but does not have a cylindrical pipe surrounding the nozzles. This increases the amount of compressed air that is blown from each nozzle much more than the conventional method. The conventional method only inflows the outside air around the nozzles in the cylinder, while the designed method allows much more airflow than the existing method because both the inflow and outflow of the outside air around the nozzles are possible.

In addition, the configuration of the nozzle can be used according to the user's purpose by placing a two-dimensional height step rather than a plane. The sprayed nozzle is divided into two circles of different diameters and there is a large circle outside the small circle inside. That is, as shown in Figures 9 and 10, if the small circle is located in front of the large circle in the direction of the injection is the wind speed is gathered inward, the wind speed is fastened inside, on the contrary small in the direction of the large circle is injected If it is located in front of the circle, the wind speeds outward and the outside wind speeds up.

In this way, the greatest effect is that it is possible to reduce the energy of the compressed air used. It is a blower that can generate larger airflow while using smaller compressed air than the conventional method, and it is easy to manufacture, and also it can be manufactured at low cost because the unit cost is low. Of course, it is possible to use for the purpose of ventilation of the worker in the drying of water inside the pipe, efficient drying of the vessel and painting / welding in the closed space than the conventional method.

In addition, the present invention by heating the wind of the high wind blowing from the exhaust through the heater to supply a high temperature dry wind inside the pipe to evaporate the remaining water in the pipe to the pipe exit to the opposite side of the inside of the pipe It can be dried quickly to prevent rust.

If the nozzle of the blower is injected from the vessel / block input stage (small inlet like manhole) in the enclosed space, it plays the role of the intake ventilator, while the compressed air of the nozzle is sprayed out of the vessel / block from the output stage (other inlet). It acts as an exhaust fan and adds the meaning of efficient operation of the blower by changing the height step of the small and large circles of the fan according to the shape of the vessel / block (for example, if there is a structure at the edge or the middle). Can be.

In order to introduce more air outside, the nozzles are arranged to alternate the small circle inside and the large circle outside so that more air can be blown. The air volume can be changed by changing the number or adjusting the compressed air input to the compressed air ON / OFF valve.

If a small circle inward is placed in front of the nozzle direction in which compressed air is injected, as shown in FIG. 9, the wind speed is collected inward so that the wind speed may go farther than FIG. 10, and the wind speed in the center is stronger and the edge wind speed is weaker than the center. The fork exhaust fan can be configured. This method can be used efficiently when used in places with narrow and long spaces.

As shown in FIG. 10, when an outside large circle is placed in front of the nozzle direction in which the compressed air is injected, the wind speed may be spread outward, thereby forming an air blower in which the wind speed outside of FIG. 9 is spread. This method can be used in places with large and short spaces or for efficient operation in spaces with structures blocked in the middle.

On the other hand, although the integrated blower for drying and ventilating the paint according to the present invention has been described according to a limited embodiment, the scope of the present invention is not limited to a specific embodiment, it will be apparent to those skilled in the art related to the present invention. Various alternatives, modifications, and changes can be made within the scope.

Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not to limit the technical idea of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings . The scope of protection of the present invention should be construed according to the following claims, and all technical ideas which are within the scope of the same should be interpreted as being included in the scope of the present invention.

100, 300: exhaust fan 110, 310: compressed air air hose
120,320: Compressed air input end nozzle 130,330: Compressed air ON / OFF valve
140: Joint 150,340: Vent part
160,350: Main air injection nozzle 170,360: Ventilator fixing device
180,370: Gas input nozzle 190,380: Gas ON / OFF valve
200,390: gas hose 210,400: heater
160a, 350a: Compressed air auxiliary nozzle

Claims (11)

As a blower for blowing and blowing compressed air for drying and ventilation inside the block,
An integrated blower for painting drying and ventilation, which is manufactured by injection molding of plastic material for light weight. The air blower of claim 1,
A compressed air air hose 110 having a compressed air input end nozzle 120 connected to a front end and having a compressed air ON / OFF valve 130 installed therein;
A joint 140 installed to branch the compressed air to the other end of the compressed air air hose 110;
Both end portions of the pipe are connected to both ends of the joint 140, the ventilator 150 is formed to bend to form a pipe surface;
Integrated air blower for painting drying and ventilation, characterized in that it comprises a plurality of compressed air main injection port 160 is formed so as to face the pipe in the front portion 150. The air blower of claim 1,
A compressed air air hose 310 having a compressed air input end nozzle 320 connected to a front end thereof and having a compressed air ON / OFF valve 330 installed therein;
A blower 340 which is connected to a pipe whose end is blocked at the other end of the compressed air air hose 310 and is bent to form a pipe;
Compressed air main injection port 350 is formed in a plurality so that the front of the pipe portion 340 to the front;
A gas hose 390 to which a gas input nozzle 370 is connected at the front end, and a gas ON / OFF valve 380 is installed;
An integrated blower for painting drying and ventilation, comprising a heater 400 connected to the other end of the gas hose 390 and installed to be located inside the blower 340. The method of claim 2 or 3 around the compressed air main injection port (160), 350,
The integrated air blower for painting drying and ventilation, characterized in that a plurality of compressed air auxiliary injection holes (160a, 350a) is formed to reduce noise and improve injection efficiency. The method of claim 2 or 3 wherein the ventilator 150, 340,
An integrated blower for painting drying and ventilation, characterized in that formed in any one of a polygonal shape including a spiral, arc, spring, square or triangle. The method of claim 2 or 3 wherein the blower 100, 300,
An integrated blower for painting drying and ventilation, further comprising a blower fixing device (170, 360) installed to support and fix the blower. The method of claim 6 wherein the blower fixing device 170, 360,
An integrated blower for painting drying and ventilation, comprising one of a permanent magnet or a clamp device attached to the hull using a permanent magnet. The exhaust fan 100 of claim 2,
A gas hose 200 to which a gas input nozzle 180 is connected to the front end, and a gas ON / OFF valve 190 is installed;
Connected to the other end of the gas hose 200, the integrated blower for drying and ventilation, characterized in that it further comprises a heater 210 is installed to be located inside the air blowing unit (150). The method of claim 2 wherein the ventilator 150,
A first pipe 151 having a plurality of compressed air main injection holes 161 formed in a forward direction;
It is composed of a second pipe 152 having a diameter larger than the diameter of the first pipe 151, the plurality of compressed air main injection port 162 is formed in a forward direction,
And a plurality of compressed air main injection holes (161, 162) are arranged alternately with each other. The method of claim 3 wherein the ventilator 340,
A circular first pipe 341 connected through the compressed air air hose 310 and the coupler 343 and having a plurality of compressed air main injection holes 350 in a forward direction;
A second pipe (342) having a diameter different from that of the first circular pipe (341) and having a plurality of compressed air main injection holes (350) formed in a forward direction;
The first pipe 341 and the second pipe 342 are cut at a plurality of positions, respectively, to connect the tee-shaped pipes 344a and 344b so as to be rotatable, and the first pipe 341 and the second pipe 342 are rotated. T-shaped pipes (344a), 344b connected to the) comprising a plurality of pipe connecting portion 344 connected to the connecting pipe (344c), integrated blower for painting drying and ventilation. The method of claim 10 wherein the ventilator 340,
After removing the pipe connection part 344 and rotating the tee-shaped pipes 344a and 344b to change the position of the first pipe 341 and the second pipe 342 before and after, the pipe connection part 344 is changed. Integrated blower for painting drying and ventilation, characterized in that configured to change the position by assembling.

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