JPH0365930B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a clean bath that artificially creates a clean environment and an appropriate illuminance environment for the growth and cultivation experiments of animals and plants, or for the storage of microorganisms. This invention relates to a clean bath in which almost the entire ceiling is formed with a rectifying perforated plate for blowing clean air indoors in a downward laminar flow state, and an indoor lighting lamp is provided on the ceiling.

Conventionally, in order to constitute the above-mentioned clean bath, a third
As shown in FIG. The lighting fixture 19A was installed in a recessed manner in the fixture mounting opening, but in any case, the lighting fixture 19A became an obstacle to blowing out clean air and a vortex was generated below the lighting fixture 19A. There was a problem that the laminar flow state of the indoor air was already disturbed from the upper part of the room, and as a result, the effect of promoting the settling of suspended dust due to laminar flow was impaired, resulting in a significant decrease in indoor cleanliness. .

An object of the present invention is to make it possible to appropriately maintain laminar flow of indoor air while providing good indoor illumination from the ceiling through reasonable improvements.

A characteristic configuration of the present invention is that in the above-mentioned clean bath, the illumination lamp is placed above the perforated plate,
Further, it is arranged so that an air passage is formed between it and the perforated plate, and at least a portion of the perforated plate facing the illumination lamp is formed of a transparent material, and its operation and effect are as follows. It is as follows.

In other words, by arranging the lighting lamps above the perforated plate so that an air passage is formed between the perforated plate and the perforated plate, the entire ceiling can be formed of the perforated plate without any lighting equipment. In addition, since clean air can be blown out from the entire area of the perforated plate, clean air can be blown out from the entire surface of the ceiling into the room in a laminar flow, eliminating the vortex flow caused by conventional lighting fixtures. As a result, the laminar flow state of indoor air can be maintained extremely well, and the effect of settling suspended dust can be greatly improved.

Moreover, the light from the lighting lamps placed above the multi-light board can be projected into the room from the ceiling through the translucent material part of the multi-light board, allowing the lighting fixtures to be installed directly or embedded in the ceiling. It is possible to provide good indoor lighting with fewer shadows than when
Overall, a highly useful clean bath with excellent indoor cleaning performance and good indoor lighting has been created.

Next, an embodiment will be described based on FIG. 1 and FIG. 2.

The lower surface of the rectangular parallelepiped-shaped ventilation chamber 1 is formed with a rectifying perforated plate 2 over its entire surface, and the ventilation chamber 1 is supported in a hollow shape with respect to the floor 4 by four pillars 3. Vinyl curtains 5 extending from the lower edge of the ventilation chamber 1 to a position close to the floor 4 are stretched on three sides of the rectangular parallelepiped shape of the space located below. A lightweight partition plate 6 with an aluminum plate pasted thereon is stretched over the remaining side to form a chamber 8 in which a growing case 7 for animals and plants is accommodated while being isolated from the outside.

A clean air supply device 9 is disposed outside the room 8 and close to the lightweight partition plate 6, and a pair of perforated ducts 10 disposed inside the ventilation chamber 1 and the discharge of the clean air supply device 9 are installed. Exit 11 and
The external duct 12 is connected for communication, and the clean air is uniformly pressurized and supplied from the perforated plate duct 10 to the entire area inside the ventilation chamber 1, and is then passed downward into the chamber 8 from the rectifying perforated plate 2 serving as the ceiling. A clean bath is configured to ventilate and clean the interior of the room 8 by blowing and supplying the fluid in a laminar flow state.

The clean air supply device 9 includes a casing 14 in which an intake port 13 is formed, and air taken in from the intake port 13 via a play filter 15 to the casing 1.
4, and a high-performance filter 18 that removes dust from the pressurized air led out from the filter chamber 16 to the discharge port 11.

To configure the indoor lighting structure from the ceiling where the perforated rectifying plate 2 is provided on the entire surface, the perforated plate 2 is entirely made of translucent milky white plastic material, and a plurality of lighting lights 19 are installed. Those and perforated plate 2
Distributed within the ventilation chamber 1 so that an air flow path 20 is formed between the illumination lights 19 and the upper surface, that is, so that the illumination lights 19 do not block the holes of the perforated plate 2,
By projecting the light from the lighting lamp 19 into the room through the translucent porous plate 2, the entire room can be illuminated with as uniform illuminance as possible.
By placing 9 in the ventilation chamber 1,
The entire surface of the ceiling can be formed with a perforated plate 2 without any lighting equipment, thereby preventing a decrease in indoor cleanliness due to the generation of vortices caused by the lighting equipment obstructing air blowing from the perforated board 2. It is structured as follows.

Next, another embodiment will be described.

The specific structure of the chamber 8 to be purified can be modified in various ways, such as by forming all the wall parts with lightweight partition plates 6 or sheet metal materials instead of using the vinyl curtain 5 as the wall as described above. is possible.

The device 9 that purifies the air supplied indoors, and the air supply device 17 that supplies clean air indoors,
Various types of conventionally known types can be applied.

The specific aperture ratio of the perforated plate 2 for rectification can be changed as appropriate.

Instead of forming the entire perforated plate 2 with a transparent material,
Only the portion of the illumination lamp 19 facing below, or that portion and its surroundings may be made of a transparent material, and the material and color of the transparent material and the material of the non-transparent portion may be can be changed as appropriate.

Various improvements can be made to the specific mounting structure of the illumination lamp 19 in a position above the perforated plate 2 and with the air passage 20 formed therebetween.

The present invention is directed to clean baths used for various purposes in various industrial fields.

[Brief explanation of drawings]

FIG. 1 and FIG. 2 show an embodiment of the present invention, FIG. 1 is a partially cutaway overall side view, and FIG. 2 is a
A cross-sectional view taken along the line -- in FIG. 1 and FIGS. 3A and 3B respectively show the conventional structure. 2... Perforated plate, 8... Chamber, 17... Air supply device,
19...Lighting light, 20...Air passage.

Claims (1)

[Claims] 1. Almost the entire ceiling is formed with a rectifying perforated plate 2 for blowing clean air from the air supply device 17 into the room 8 in a downward laminar flow state, and indoor lighting is installed on the ceiling. light 1
9, the lighting lamp 19 is disposed above the perforated plate 2 and an air passage 20 is formed between the perforated plate 2 and the perforated plate 2. At least the lighting lamp 1
A clean booth where the part facing 9 is made of transparent material. 2. The clean booth according to claim 1, wherein the porous plate 2 is entirely made of a transparent material.