JPH048996Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a simple moisture-proof booth that is excellent in economy, workability, and mobility and is used for work or experiments that require moisture-proofing.

[Conventional technology]

A moisture-proof booth is equipment necessary for experiments or work that uses materials that dislike moisture, such as confectionery, flour milling, printing, photography, and electronic component materials, or that must be conducted under specific humidity conditions, and is a booth where the work is performed. It is a device that makes it possible to maintain a dehumidified atmosphere inside the device, independent of the surrounding environment.

Conventionally, this moisture-proof booth has generally been a large, fixed facility equipped with air conditioning equipment, which not only limits the installation location but also requires a great deal of time and labor to install, making it expensive.

On the other hand, tabletop glove boxes containing a desiccant agent are also used, but due to the desiccant's dehumidifying ability, they are limited to small-sized ones.
It was unusable depending on the intended work. Furthermore, this method is unsuitable for detailed and complicated work because the work is performed through rubber gloves installed in the box, and there is a problem in that the workability is not good.

[Problem that the invention attempts to solve]

This invention solves the problems that the conventional moisture-proof booths mentioned above had, namely, that large fixed equipment is fixed and has restrictions on the installation location, and the equipment cost is high. This solves the problem of poor workability and the lack of larger gloves when it comes to glove boxes, making it easier and more economical to work in a moisture-proof environment, which has become increasingly necessary in recent years, and can be done anywhere. The purpose of the present invention is to provide a simple moisture-proof booth that can be used for various purposes.

[Means for solving problems]

That is, the present invention defines a "simple moisture-proof booth with a dry gas inlet" as "an enclosure provided with a dry gas inlet and a work opening, and at least a portion of which is made of a film or It consists of an enclosure of 0.5 m ³ to 5 m ³ made of sheets or boards, a dehumidifier with a capacity of 2 to 10 days (at 27°C and 60% RH), and a heating device installed inside the enclosure. The present invention provides a simple moisture-proof booth characterized in that the pressure inside the enclosure is maintained higher than the pressure outside.

The present invention will be explained in detail below.

The moisture-proof booth of the present invention has an enclosure, a dehumidifying device, and a heating device as essential components (combination).

Among these, the enclosure has the function of shutting off the outside air in order to maintain a dehumidified atmosphere in the work space, and at least maintains the pressure inside the opening and the enclosure higher than the outside pressure to ensure complete dehumidification. It must be equipped with an inlet for dry gas. In other words, despite the presence of openings, outside moisture does not enter the moisture-proof booth of the present invention because the internal pressure is higher than the external pressure due to the dry gas introduced from the above-mentioned inlet (however, the pressure difference is minute). Good) because it is maintained.

In order to save on the amount of drying gas fed, it is desirable that the area of the opening be as small as possible without making it difficult to perform the intended work.

The material of the enclosure is not particularly limited, and many materials such as plastic films, sheets or paper, sheets or boards of wood, metal, etc., and laminates thereof can be used.

Examples of plastics include olefin resins such as polyethylene and polypropylene, aromatic hydrocarbon resins such as polystyrene, acrylic resins such as polyacrylonitrile and polymethyl methacrylate, halogen-containing resins such as vinyl chloride and vinylidene chloride, Polyester resins such as polyethylene terephthalate and polycarbonate,
Unsaturated polyester resin, nylon resin, etc.
Or a mixture thereof can be used.

It is preferable to use a transparent plastic film or sheet in part or in whole for the enclosure, which allows the inside to be seen clearly, is inexpensive, and is easy to assemble and process. Also, although the ceiling of the enclosure is essential, the bottom is optional. In addition, when a film is used for the entire structure, a frame made of plastic, metal, or wood is assembled and the film is covered on top of the frame.

The shape of the enclosure is not particularly limited, and may be of any shape as long as it is easy to work inside, but usually a box-shaped enclosure is easy to use.

The volume of the enclosure, that is, the size of the moisture-proof booth of the present invention, must be set to an appropriate size so that it can be easily relocated and installed and used anywhere.
0.5m ³ to 5m ³ is preferred.

Therefore, the dehumidifying equipment used in this invention to lower the absolute humidity inside the booth may have a capacity corresponding to that, and the dehumidifying amount/day should be between 2/day and 40/day (27
℃, 60% RH). For example, if the booth volume is about 0.5 m ³ to 5 m ³ , a household dehumidifier, i.e. 2/day to 10/day (27
℃, 60% HR) is sufficient.

This dehumidifier may be installed inside the booth as shown in FIG. 1, or if the booth is small, it may be installed adjacent to the outside as shown in FIG. 2 to increase the work space.

In the latter case, the dry air from the dehumidifier is also used as the dry gas.

Next, in the present invention, a heating device is installed inside the booth in order to lower the relative humidity inside the booth.

Various types of heating devices can be used for this heating device, including general heaters including electric heaters, infrared lamps, and sheet heating elements, but simple ones are 350W to 2KW.
Preferably, a general hot air dryer of 500W to 1200W is used.

[Effect]

The simple moisture-proof booth of this invention has an easy-to-assemble enclosure made of a frame and transparent film, etc., and dry air from a compressor etc. is introduced into this enclosure to make the internal pressure higher than the external pressure to prevent outside air from entering. At the same time, the booth is isolated from the outside world, and a dehumidifier is used to lower the absolute humidity inside the booth, and a heating device such as a hot air dryer is used to reduce the relative humidity inside the booth and achieve moisture proofing inside the booth. ing.

〔Example〕

Specific embodiments will be described below with reference to the drawings.

Example 1 Fig. 1 is a perspective view showing one embodiment of a simple moisture-proof booth of the present invention, Fig. 2 is a front view thereof, Fig. 3 is a side view thereof, and Fig. 4 is a plan view thereof. .
1 in the figure is an enclosure, and this enclosure is 2000mm wide and 2000mm long.
It is made by covering a box-shaped frame assembled with L-shaped steel angles measuring 1200mm and 1800mm in height with a soft vinyl chloride sheet 0.5mm thick. An opening 2 with a width of 1400 mm and a length of 100 mm is provided in the front of the enclosure 1.

There is an inlet port 3 at the upper rear of the left side of enclosure 1, through which dry air (20±5℃, 20±5%RH) from a compressor is fed at a rate of 20 to 80 times per minute. .

The internal pressure inside the booth is kept about +20mmH ₂ O higher than the external pressure.

Capacity 5/day (27℃, 60%
Install a household dehumidifier 4 (at RH).

Attach a 1KW hot air dryer 5 to the rear left frame of the enclosure.

When the dehumidifier 4 and hot air dryer 5 were operated while supplying the dry air, a dehumidified atmosphere with a temperature of 28±2° C. and a humidity of 25±5% RH was maintained in the booth. At this time, the temperature and humidity of the outside room are 20
The temperature was ±5℃ and 55±10%RH.

When we put the automatic printing machine 6 into this booth and set it up to print electronic parts, it was completely moisture-proof and had good workability, and we were able to print well.

Practical example 2 A smaller example is shown in FIG. 5 (perspective view).

Enclosure 1 was a bottomless box-shaped enclosure made of a transparent plate of methyl methacrylate resin measuring 800 mm x 800 mm x 800 mm.

The size of the front opening 2 is 500 mm x 350 mm. The dry gas inlet 3 is connected to a household dehumidifier installed adjacent to the outside of the enclosure 1 [capacity 5/day (27
℃, 60% RH)] The side surface of enclosure 1 is cut out to match the size and shape of the outlet, and the outlet is loosely fitted here.

There is a hot air dryer (capacity
500W) is installed.

When the dehumidifier and dryer were operated, a dehumidified atmosphere with a temperature of 28±2° C. and a humidity of 30±5% RH was maintained inside the booth.

The outside air at this time was 20±5°C and 55±10%RH. In addition, the moisture-proof booth is placed on top of work No. 7 with a height of 700 mm to make it easier to work. Therefore, the moisture proofing device was also installed on the platform 8 at the same height.

[Effect of idea]

The simple moisture-proof booth of this invention has the advantage of being able to freely select the size and shape according to the desired work, and can be easily moved to any location. It has the excellent effect of being much cheaper than other products.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a simple moisture-proof booth according to the first embodiment of the present invention, FIG. 2 is a front view thereof, FIG. 3 is a side view thereof, FIG. 4 is a plan view thereof, and FIG.
The figure is a perspective view showing a simple moisture-proof booth according to Embodiment 2 of the present invention.

Claims (1)

[Scope of utility model registration request] An enclosure with a dry gas inlet and a working opening, at least a part of which is made of a film, sheet or board that allows the inside to be seen through, and an enclosure of 0.5 m ³ to 5 ^{m 3} and 2/day to Ten
/ day (at 27°C and 60% RH) and a heating device installed inside the enclosure, and is characterized by the fact that the pressure inside the enclosure is maintained higher than the pressure outside. Moisture proof booth.