JPH1179319A - Clean storage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify structure of a clean storage, to reduce manufacturing cost of the clean storage and to lower noise in the inside of the clean storage by supplying air by connecting a branch pipe branched from a supply pipe connected to a compression supply source to the clean storage. SOLUTION: Compressed air from a compression supply source 4 arranged in a plant is supplied to a clean storage 1 through a main supply pipe 5 and a branch pipe 6. Consequently, the structure of the clean storage 1 is simplified, manufacturing cost of the clean storage is reduced, and noise in the inside of the clean storage is also reduced. Additionally, as it is possible to connect a branch pipe 6a to an optional point of the clean storage 1, freedom of arranging places of such members as a pressure reducing member 15, a filter 11, etc., and a setting plate of the clean storage 1 is increased. Furthermore, it is possible to stop supply of compressed air instantly by closing a valve 7 even in the case when it is required to stop supply of the compressed air due to a reason of maintenance inspection work, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clean storage for preventing dust from adhering to articles.

[0002]

2. Description of the Related Art Conventionally, a clean fan is arranged below a plurality of shelves on which articles are placed, and an air flow generated by the clean fan is placed on the shelves from the back of the shelves via a filter. There is known a clean storage in which articles are sprayed on the articles.

[0003]

In the above-described conventional clean storages, since a clean fan is provided for each clean storage, the manufacturing cost of the clean storages is high and the clean storages are expensive. There is a problem that the noise inside the refrigerator is loud.

Further, in the case of a clean storage in which a clean fan is provided, the installation place of the heavy clean fan is limited to a floor or a base below a shelf, so that the flow of the air flow is downward. From the upper side, and there is a problem that the installation place of the accessory parts such as the filter and the rectifying plate and the installation place of the clean storage are limited.

[0005] An object of the present invention is to solve the above-mentioned problems of the conventional clean storage and to provide a clean storage having a simplified structure.

[0006]

According to the present invention, in order to achieve the above object, first, a branch pipe branched from a main supply pipe connected to a compression supply source is connected to a clean storage. Secondly, a compressed air control chamber having a pressure reducing member and a filter is disposed below the rack, and thirdly, a branch is provided from a main supply pipe connected to a compression supply source. A pressure reducing member and a filter are arranged in the middle of the branched pipe.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference numeral 1 denotes a clean storage, in which a rack 2 composed of a column 2a and a plurality of shelves 2b attached to the column 2a is arranged. Reference numeral 3 denotes a compressed air control chamber disposed below the rack 2. 4 is
A plurality of branch pipes 6 are branched and connected to a main supply pipe 5 which is a compression supply source and is connected to the compression supply source 4. The branch pipe 6 is connected to various devices that require compressed air.

[0008] One branch pipe 6a of the main supply pipe 5 extending from the compression supply source 4 is introduced into the compressed air control chamber 3 via a valve 7 and a pressure reducing valve 8 as a first pressure reducing member. A decompression nozzle 9 as a second decompression member is attached to an end of the branch pipe 6a introduced into the compressed air control chamber 3. In the compressed air control chamber 3, a plurality of partition plates 10 as third pressure reducing members are disposed. Reference numeral 11 denotes a filter provided in the compressed air control chamber 3, and a primary rectifying member 12 is attached to an air outlet 3 a of the compressed air control chamber 3. From the air outlet 3a of the compressed air control chamber 3,
The air discharged through the primary rectifying member 12 enters an air chamber 13 formed behind the rack 2 and thereafter,
Is placed on the shelf 2b through the secondary rectifying member 14 disposed behind the, and is sprayed on the article.

The compressed air supplied from the branch pipe 6a branched from the main supply pipe 5 connected to the compression supply source 4 via the valve 7 and the first pressure reducing member 8 is supplied to the first pressure reducing member 8 and the second pressure reducing member 8. The air is supplied to the compressed air control chamber 3 via a pressure reducing nozzle 9 as a pressure reducing member. The compressed air supplied to the compressed air control chamber 3 is further decompressed to a desired pressure by a plurality of partition plates 10 as third decompression members. From 3a, primary rectifying member 1
2 and enters an air chamber 13 formed behind the rack 2. The air flow that has entered the air chamber 13 is configured to be placed on the shelf 2b and sprayed on the articles via the secondary rectifying member 14 disposed behind the rack 2.

In the present embodiment, a clean storage
Since the compressed air from the compression supply source 4 disposed in the factory is supplied to the clean storage via the main supply pipe 5 and the branch pipe 6a without disposing a clean fan, the clean air is supplied. The structure of the storage is simplified, and the manufacturing cost of the clean storage can be reduced.
The noise in the clean storage can be reduced.

Further, since the branch pipe 6a can be connected to an arbitrary portion of the clean storage, the degree of freedom in the arrangement of members such as the pressure reducing member and the filter and the installation of the clean storage increases. Further, even when it is necessary to stop the supply of compressed air due to the maintenance and inspection work of the clean storage, etc., by closing the valve 7 disposed on the branch pipe 6a, it is possible to simply and instantly. The supply of compressed air can be stopped. Further, since the compressed air control chamber 3 having the decompression members 9 and 10 and the filter 11 is provided below the rack 2, the compressed air control chamber 3 is directly connected to the air chamber 13 formed behind the rack 2. Desired air pressure can be supplied.

In the embodiment shown in FIG. 2, the pressure reducing member 1 is provided outside the clean storage and in the middle of the branch pipe 6a.
5 and a filter 16 are arranged, and the pressure reducing nozzle 9, the partition plate 10 and the filter 11 arranged in the compressed air control chamber 3 are removed. With this configuration, the size of the compressed air control chamber 3 can be reduced, and the number of stages of the rack 2a of the rack 2 can be increased, so that the clean storage can be effectively used. it can.

In the embodiment shown in FIG. 2, a branch pipe 6a provided with a decompression member 15 and a filter 16 is directly connected to the air chamber 1 formed behind the rack 2.
3, the compressed air control chamber 3 can be omitted. With this configuration, the clean storage can be used more effectively.

[0014]

Since the present invention has the above-described structure, the following effects can be obtained.

By connecting the branch pipe branched from the main supply pipe connected to the compression supply source to the clean storage, the structure of the clean storage is simplified, and the manufacturing cost of the clean storage is reduced. And the noise in the clean storage can be reduced.

Since the branch pipe can be connected to an arbitrary part of the clean storage, the degree of freedom in the arrangement of members such as the pressure reducing member and the filter and the installation of the clean storage increases.

Since the compressed air control chamber having the decompression member and the filter is provided below the rack, the air that has been desirably depressurized is directly supplied from the compressed air control chamber to the air chamber formed behind the rack. Can be supplied.

Since the decompression member and the filter are provided in the middle of the branch pipe branched from the main supply pipe connected to the compression supply source, the compressed air control chamber can be omitted, so that the clean storage can be reduced. It can be used more effectively.

[Brief description of the drawings]

FIG. 1 is a front view including a vertical section of a clean storage of the present invention.

FIG. 2 is a front view including a vertical cross section of a clean storage according to another embodiment of the present invention.

[Explanation of symbols]

 1 Clean storage 2 Rack 3 Compressed air control room 4 Compressed air supply source 5 ..Main supply pipe 6 ... Branch pipe

Claims (3)

[Claims] 1. A clean storage, wherein a branch pipe branched from a main supply pipe connected to a compression supply source is connected to a clean storage. 2. A clean storage according to claim 1, wherein a compressed air control chamber having a pressure reducing member and a filter is provided below the rack. 3. The clean storage according to claim 1, wherein a pressure reducing member and a filter are provided in the middle of a branch pipe branched from the main supply pipe connected to the compression supply source.