JPS642102Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an air conditioner that controls the temperature and humidity of outside air, and is particularly suitable for maintaining the temperature and humidity inside a painting booth at predetermined values. Regarding.

[Prior art and its problems]

In a painting booth, an air conditioner as shown in FIG. 4 is generally used because if the temperature or humidity inside the booth changes, the drying rate of the paint will vary and the paint finish will be uneven.

That is, FIG. 4 shows an example of a large supply painting booth used in an automobile painting booth, etc., and a conventional air conditioner for supplying temperature-controlled and humid air to the painting booth, which is connected to the painting booth 1. The air conditioner 2 purifies outside air introduced from a gear rally 3 serving as an outside air sampling port through a roll filter 4, preheats or cools the purified air with a preheater 5 made of an Elofinch tube, etc. 6,
The humidity is controlled through a shower-type humidifier 7 and an eliminator 8 as a humidity controller, and then heated or cooled to a predetermined temperature through a temperature controller 9 such as an Elofinch tube, and then painted using a blower 10. It is configured to feed into booth 1.

By the way, the reason why the conditioned air is fed to the supply coating booth 1 in this way is mainly due to the following reasons.

That is, temperature-controlled and humidified air is sent from the air conditioner 2 into the air supply chamber 11 of the painting booth 1 and introduced into the painting room 12, and the air introduced into the painting room 12 is exhausted. By suctioning into the processing chamber 13 and discharging it to the outside, creating a flow of air at the required volume and speed within the coating chamber 12 is primarily due to the adhesion of dust to the surface of the object to be coated 14 and excessive humidity. This is to maintain good painting conditions by preventing fogging caused by evaporative organic solvents, and secondly, to maintain a good working environment by maintaining the health of workers and preventing disasters caused by ignition of evaporated organic solvents. This is to do so.

Here, in general, in the past, the huge amount of air to be delivered to the painting booth 1 was controlled by the air conditioner 2 having the above-mentioned structure, and the temperature and humidity were controlled in accordance with the painting conditions. The running cost of the air conditioner 2 required for cooling during the winter and heating during the winter has become significant.

However, as mentioned above, the air that needs to be controlled not only in temperature but also in humidity for the purpose of maintaining good coating conditions is the air that is supplied to the painting chamber 12 and is used for the workpiece 14.
only those that are introduced into the area where it is being transported;
Humidity-controlled air does not necessarily need to be introduced into other areas.

Therefore, in the past, the
As described in Publication No. 195675, the object to be painted 14
The air purification system maintains good painting conditions by supplying temperature- and humidity-controlled air from the air conditioner 2 as described above only to the area where the water is transferred, and has only a roll filter 4 and a blower 10 for other areas. A system has been proposed that maintains the working environment by supplying purified air from which dust has simply been removed from the equipment, and aims to reduce running costs by reducing the amount of air that needs to be controlled for temperature and humidity. There is.

However, in this case, an air purification device is installed separately in addition to the air conditioner 2, which increases the installation space and equipment costs, and the dust is removed from the air purification device. The drawback is that the working environment is poor in the summer and winter because only uncontrolled air is supplied.

Furthermore, if a temperature controller or the like is installed in the air purification device in order to improve the working environment, it would be very uneconomical because the temperature controller would be installed twice as the air conditioner 2. In the end, this does not lead to a reduction in running costs.

[Purpose of invention]

Therefore, the present invention uses a single device to supply the temperature-controlled and humidity-controlled air necessary to maintain good painting conditions, and the temperature-controlled air necessary to maintain a good working environment. It is an object of the present invention to provide an air conditioner that can effectively and significantly reduce running costs, as well as equipment costs and installation space, by feeding air separately and simultaneously to booths and the like.

[Structure of the idea]

In order to achieve this objective, the present invention includes a first air conditioning chamber that controls the temperature and humidity of the outside air introduced through the outside air sampling port, and a second air conditioning chamber that adjusts the temperature of the outside air. are formed in parallel with a partition wall in between.

[Effect of invention]

According to the present invention, since the first air-conditioning room for controlling the temperature and humidity of outside air and the second air-conditioning room for controlling the temperature of outside air are formed in parallel in the main body, Out of the total air volume that should be supplied to the equipment, one unit is used to separate the air conditioned air that requires temperature and humidity control to maintain painting conditions, and the air conditioned air that only needs temperature control to maintain the working environment. These devices can be differentiated and produced separately, thereby significantly reducing running costs for temperature and humidity control, and at the same time reducing equipment costs and installation space.

In particular, when two air-conditioned chambers are formed in parallel in the main body via a partition wall as in the present invention, and temperature is controlled by heating or cooling simultaneously in both air-conditioned chambers, the heating or cooling efficiency is particularly high. is extremely high, which also helps reduce running costs.

〔Example〕

Hereinafter, the present invention will be explained based on specific embodiments shown in the drawings.

FIG. 1 is a sectional view of an air conditioner according to the present invention, and parts common to those in FIG. 4 are given the same reference numerals and detailed explanation thereof will be omitted.

In the present invention, a first air conditioning room R1 is provided in the main body of the air conditioner 2 for controlling the temperature and humidity of outside air introduced from the outside through a gear rally 3 and a roll filter 4 disposed on the subsequent stage side; A second air-conditioned room R2 that only controls the temperature of outside air is formed vertically in parallel with a partition wall 20 interposed therebetween, and blowers 21 and 22 are disposed at the rear end of each air-conditioned room R1 and R2, respectively. .

In the first air-conditioned room R1, a shower-type humidifier 7 and a temperature controller 9 consisting of a preliminary temperature controller 5 such as a pre-heater, an eliminator 6, an air washer 23, and a pump 24 are arranged after the roll filter 4. is,
On the other hand, in the second air-conditioned room R2, the temperature controller 9 arranged in the first air-conditioned room R1 is arranged downstream of the roll filter 4, penetrating the partition wall 20 and extending as it is. In addition, an air volume adjusting damper 25 is disposed between the temperature controller 9 and the blower 22.

The above is an example of the configuration of the air conditioner 2 according to the present invention.Next, its operation will be explained. Then, outside air is sucked from the gear rally 3, and after removing dust through the roll filter 4, it is introduced into the first air conditioning room R1 and the second air conditioning room R2 partitioned by the partition wall 20. The air introduced into the first air conditioned room R1 is preheated to a predetermined temperature in winter by the temperature controller 5, and then released from the shower type humidifier 7 disposed between the eliminators 6 and 8. It is humidified and washed with hot water to remove fine dust, etc., and then heated to a predetermined temperature and humidity by a temperature controller 9 and sent to the painting booth 1 by an air blower 21. Here, the painting booth 1 has its air supply chamber 11
is divided into approximately three parts as shown in FIG. 1, and an air chamber 11a is formed in the center to supply temperature- and humidity-controlled air only to the area where the object to be coated 14 is transferred.
Air chambers 11b and 11c for supplying temperature-controlled air are formed on both sides of the air chamber 11a, and as mentioned above, the temperature-controlled and humid air sent to the painting booth 1 by the blower 21 is It is configured to be supplied to the chamber 11a.

Further, the air introduced into the second air conditioned room R2 is heated to a predetermined temperature by the temperature controller 5, and the air introduced into the air chambers 11b and 1 of the painting booth 1 is heated by the air blower 22 to a predetermined temperature.
1c.

Therefore, according to the air conditioner 2, the conditioned air whose temperature and humidity have been controlled in the first air conditioned room R1 is supplied to the air chamber 11a of the air supply chamber 11, and is supplied to the object to be coated in the painting chamber 12. 14 is introduced into the area to be transferred, it is possible to maintain good coating conditions for the object 14 and prevent fogging and the like. Furthermore, conditioned air whose temperature is controlled in the second air conditioning room R2 is introduced through the air chambers 11b and 11c of the air supply chamber 11 into the area where the painting equipment and workers are present in the painting room 12. Therefore, it is possible to maintain a good coating environment even in winter (or summer), and in particular to maintain the health of workers.

According to experiments by the present inventor, for example, with the conventional device shown in FIG.
The outside air with a humidity of 50% is controlled and humidified to a temperature of 18℃ and a humidity of 60%, and is then pumped into the air supply chamber 11 of the painting booth 1 every minute.
In the case of sending ^{1100m3 of air} , it would have cost 6.27 million yen for gas for temperature controllers 5 and 9 such as heaters, but with the device of the present invention shown in Figure 1, outside air under the same conditions could be Temperature 18℃ and humidity 60% in the first air-conditioned room R1
The temperature and humidity are adjusted and the temperature is adjusted and the air is placed in the air chamber 11a of the air supply chamber 11.
300m ³ /min and the second air conditioned room R2
(In this case, the air in the second air conditioned room R2 is not humidified, so the humidity is 20%.)
) The air is fed into the air chambers 11b and 11c of the air supply chamber 11 at a rate of 400 m ³ /min, respectively, and a total of 1,100 m ³ per minute is supplied as in the case of the conventional device.
If the system was supplied with gas, the gas cost would be approximately 4 million yen, resulting in a significant reduction in running costs.

This is because 800 m ³ /min, which accounts for the majority of the required air volume of 1100 m ³ /min, is supplied from the second air conditioned room R2.

That is, in the second air conditioned room R2, there is a shower type humidifier 7 that humidifies the outside air like in the first air conditioned room R1.
Since there are no eliminators 6, 8, etc. that obstruct air flow, there is no need to provide a preliminary temperature controller 5 such as a pre-heater, and conditioned air at a predetermined temperature can be obtained only by heating the temperature controller 9. At the same time, a large amount of air can be obtained with a small volume, and therefore the first air conditioned room R1 can only supply the necessary temperature-controlled and humid air to the limited air chamber 11a of the air supply chamber 11 of the painting booth 1. The pre-temperature regulator 5 is significantly smaller, and the temperature regulator 9 is also smaller than before, which greatly reduces the gas cost required for these temperature regulators 5 and 9. This is because it will be done. especially,
When two air-conditioned rooms R1 and R2 are formed in parallel through the partition wall 20 in the main body of the air conditioner 2 and share the temperature controller 9, the heating (or cooling) efficiency is extremely good, This point also contributes to further savings in gas costs, etc.

Furthermore, if it becomes possible to relatively reduce the volume of the first air conditioned room R1 in this way, the air washer 23 of the shower humidifier 7 can be downsized, and the load on the pump 24 can therefore be reduced. As a result, the electricity bill for the pump is reduced to about half that of conventional equipment, further reducing running costs.

In the above-described embodiment, the first air-conditioned room R1 and the second air-conditioned room R2 are formed vertically in parallel in the main body of the air conditioner, and each air-conditioned room R1 and R
In the present invention, as shown in FIGS. 2 and 3, the first air-conditioned room R1 and the second air-conditioned room R2 are arranged on the left and right sides. They may be formed in parallel, and one blower 30 may be disposed at the front end of the blower 30 for common use.

That is, FIGS. 2 and 3 are a plan view and a cross-sectional view taken along the line 2 of another example of the air conditioner 2 according to the present invention. The air is introduced into the first air-conditioned room R1 and the second air-conditioned room R2, which are formed in parallel on the left, via the ventilation duct 31.

In the first air conditioned room R1, a preliminary temperature conditioner 5 is installed which extends into the second air conditioned room R2 by penetrating the partition wall 20, followed by a demister 32 and a shower type humidifier. container 7, eliminator 8 and temperature controller 9
is installed.

On the other hand, the second air-conditioned room R2 is formed shorter and smaller than the first air-conditioned room R1, and only the preliminary temperature controller 5 shared with the air-conditioned room R1 is disposed inside.

In this case as well, temperature-controlled and humid air is sent out from the first air-conditioned room R1 through the ventilation duct 33 formed at the rear end, and the second air-conditioned room R2
Temperature-controlled air is sent out through the air duct 34, and the same effects as in the first embodiment described above can be obtained.

In the embodiment, a shower type humidifier is used as the humidifier, but the present invention is not limited to this, and any other type of humidifier such as a filler type can be applied.

[Effect of idea]

As described above, according to the present invention, a first air conditioning chamber for controlling the temperature and humidity of outside air and a second air conditioning chamber for controlling the temperature of outside air are formed in parallel in the main body. Therefore, if this is applied to an air conditioner such as a supply painting booth, a single device can maintain the working environment and the conditioned air that needs temperature and humidity control to maintain painting conditions. Therefore, it is possible to separate and generate air separately from the conditioned air, which only requires temperature control, and therefore reduce running costs by reducing the amount of air required for temperature control and humid air out of the total air volume that needs to be supplied to the painting booth. This has the excellent effect of significantly reducing equipment cost and installation space.

In particular, when two air-conditioned chambers are formed in parallel within the main body with a partition wall in between, and both air-conditioned chambers are heated or cooled at the same time to control the temperature, the heating or cooling efficiency is extremely high. From this point of view as well, running costs can be reduced.

In addition, since the air for maintaining the working environment inside the painting booth is supplied after being temperature-controlled, although the humidity is not controlled, the working environment is always maintained in a good condition even in winter or summer.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an example of the air conditioner according to the present invention, FIG. 2 is a plan view showing another example of the air conditioner according to the present invention, FIG.
The figure is a sectional view showing a conventional air conditioner. Explanation of symbols, 2...Air conditioner, R1...First air conditioning room, R2...Second air conditioning room, 3...Gear rally (outside air sampling port), 4...Roll filter, 5...Preliminary temperature controller,
6, 8... Eliminator, 7... Shower type humidifier (humidifier), 9... Temperature controller, 20... Partition wall, 21, 22
...Blower, 23...Air washer, 24...Pump.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) Inside the main body, there is a first air conditioning chamber that controls the temperature and humidity of the outside air introduced through the outside air sampling port, and a second air conditioning room that adjusts the temperature of the outside air. An air conditioner characterized by being formed in parallel with a partition wall in between. (2) A shower-type or filler-type humidifier that humidifies outside air and a temperature controller that heats and/or cools outside air are installed in the first air-conditioned room, and the temperature controller connects the partition wall with The air conditioner according to claim 1, which is disposed penetrating the air conditioner and extending into the second air conditioned room.