WO1999051333A1 - Chambre de traitement - Google Patents

Chambre de traitement Download PDF

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Publication number
WO1999051333A1
WO1999051333A1 PCT/JP1998/001617 JP9801617W WO9951333A1 WO 1999051333 A1 WO1999051333 A1 WO 1999051333A1 JP 9801617 W JP9801617 W JP 9801617W WO 9951333 A1 WO9951333 A1 WO 9951333A1
Authority
WO
WIPO (PCT)
Prior art keywords
space
processing
air
processing chamber
gas
Prior art date
Application number
PCT/JP1998/001617
Other languages
English (en)
Japanese (ja)
Inventor
Hikoshige Fujii
Original Assignee
H.K.M. Company Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by H.K.M. Company Co., Ltd. filed Critical H.K.M. Company Co., Ltd.
Priority to AU65238/98A priority Critical patent/AU6523898A/en
Priority to PCT/JP1998/001617 priority patent/WO1999051333A1/fr
Publication of WO1999051333A1 publication Critical patent/WO1999051333A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
    • B29C71/009—After-treatment of articles without altering their shape; Apparatus therefor using gases without chemical reaction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/14—Production of inert gas mixtures; Use of inert gases in general
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/14—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects using gases or vapours other than air or steam, e.g. inert gases

Definitions

  • the present invention relates to a processing chamber for performing processing such as welding, soldering, forging, and filling concrete.
  • the inventor of the present invention has an inflow port for flowing helium gas into a space, and can replace the air from above in the space with the inflow of helium gas and discharge the air below.
  • a processing chamber having a simple exhaust port and a processing space in a helium gas atmosphere in the above space was developed.
  • helium gas Since helium gas is lighter than air, it is filled from above in a closed space. Therefore, it is possible to perform the work in the work where the presence of air is not preferable in the upper work room and the work in which the loss of air is not particularly problematic in the work room below. Therefore, according to the present invention, a processing space in a helium gas atmosphere can be provided above, and a non-processing space in an air atmosphere can be provided below.
  • the processing space it is necessary that at least the upper end and the side wall of the processing space filled with helium gas are sealed, and it is preferable that the processing space be a closed space.
  • a processing space can be constituted by a building structure. .
  • the gas since the gas is present in the space filled with the helium gas, the gas is not compressed by the outside atmospheric pressure. Also, helium is lighter than air and is filled from the top. Therefore, if the upper end and the side wall are sealed, the space does not need to be a particularly strong structure. For example, by providing a coating sheet impermeable to gas, helium flows into the interior surrounded by the sheet, and it is easy to create a processing space in the helium atmosphere.
  • the processing in which the processing space is provided with a processing space that generates airborne substances in an air atmosphere, the processing can be performed in an atmosphere of helium gas. Impurities such as dust and mist can be eliminated. Therefore, for example, as described later, it can be suitably applied to a coating / drying process and the like.
  • an argon gas can be used instead of the helium gas. Even when argon gas is used, it can be applied to a space similar to the above. In addition, since argon gas is cheaper than helium gas, in that respect, it is necessary to employ argon gas in the present invention. Layer preferred. However, since argon gas is heavier than air, it is difficult to create a processing space similar to that of helium gas. Therefore, the present invention introduces helium gas into the processing chamber space, exhausts air heavier than helium gas from the processing chamber space, and then guides argon gas into the processing chamber space to perform processing.
  • a method of filling the processing chamber with argon gas which is characterized by replacing the helium gas in the chamber space with argon gas and filling the processing chamber space with argon gas, was adopted. Further, in order to carry out the same method, an inflow port through which helium gas flows into the space, and the air can be displaced from above in the space with the inflow of the helium gas to discharge the air below.
  • a processing chamber having an exhaust port, an inlet for argon gas for replacing the helium gas flowing into the space, and a processing space having an atmosphere of an argon gas in the space was employed.
  • the treatment chamber of the present invention may be provided with an atmosphere of helium gas or argon gas. Therefore, a processing chamber equipped with an atmosphere of a gas layer composed of a plurality of inert gases such as helium gas and other inert gases, for example, argon gas, xenon gas, and carbon dioxide gas, or argon gas and other inert gases.
  • a processing chamber having an atmosphere of a gas layer composed of a plurality of inert gases such as a gas such as xenon gas and carbon dioxide gas can be employed.
  • ADVANTAGE OF THE INVENTION According to the processing chamber of this invention, storage of sensitive materials in the presence of air or any operation
  • the present invention can be applied to a processing chamber in which the processing space is a welding space.
  • the presence of air in the welding process is undesirable because it causes the metal of interest to be denatured.
  • iron is easily oxidized and denatures welds Is often caused.
  • the present invention can be noted that helium or argon is chemically stable and can hardly make compounds.
  • fire may be a problem in the welding process due to the use of fire, but in a helium or argon atmosphere, everything does not burn and such problems are eliminated.
  • the present invention can be configured as a processing chamber in which the processing space is a welding space for titanium.
  • the processing space is a welding space for titanium.
  • the presence of nitrogen in the air poses a problem. That is, in welding titanium, there is a problem that the welded portion is easily deformed by nitrogen and loses strength and the like. This problem is solved by the processing chamber of the present invention, which allows the operation to be performed in a helium or argon atmosphere.
  • the present invention can be configured as a processing chamber in which the processing space is a processing space for soldering. Performing the soldering in the presence of air is not preferable because the object is oxidized. In other words, soldering can be considered as a kind of welding, and therefore, the problems that may occur in the welding operation are greatly duplicated.
  • the present invention can also be configured as a processing chamber in which the processing space is a space for a forging process or a space for a rolling process for a forging product.
  • the processing space is a space for a forging process or a space for a rolling process for a forging product.
  • Performing such a forging process and a rolling process in the presence of air has a problem that the object is denatured.
  • helium or argon can hardly produce a compound, it is possible to ensure an effect that a substance in a high energy state is not denatured even when it comes into contact with helium or argon. Therefore, it is possible to produce high-purity iron and the like without subjecting the object to denaturation.
  • the processing space can be configured as a processing chamber including a processing space for filling concrete into the formwork. Performing such work in the presence of air can replace helium or argon gas with air in concrete. As a result, it is possible to prevent deaeration of buildings and deterioration of concrete after construction.
  • the present invention can also be configured as a processing chamber having a space in which the processing space performs the painting step or the drying step.
  • the coating operation is generally performed in the presence of oxygen, oxidation of the object to be coated may become a problem, and there is a problem that the coating film easily peels off.
  • a large amount of paint mist is generated when spraying paint, but the mist generated in the air floats in the air, but falls quickly to the ground surface in helium to prevent contamination other than objects to be coated. Is possible.
  • a baking step is performed by drying after coating. In this case, oxidation of the coating film or the surface of the object to be coated is prevented, and the adhesive strength is improved.
  • the present invention can also be suitably used as a processing chamber in which a processing space forms a storage.
  • a processing chamber filled with helium or argon gas as a storage can prevent denaturation of foods and the like, and improve storage capacity. That is, it is publicly known that in the absence of oxygen filled with an inert gas, the oxidation of food and the like does not take place, and is effective in preserving food, but all of them are those in which a container is filled with an inert gas. Yes, it was only a transaction in a market transaction.
  • the present inventor has found a method for easily filling the processing chamber with helium or argon gas, and has come to an invention in which the method is used as a storage.
  • Such storage is also highly susceptible to the effects of oxygen, but is excellent for storage.
  • yellow phosphorus which can spontaneously ignite at certain temperatures and cannot be stored in a normal storage, does not burn in a helium or argon atmosphere and can be stored safely.
  • the processing space may be a processing chamber configured as a space for packaging processing.
  • the present invention can also be used as a processing chamber in which the processing space is configured as a space for polishing the blade.
  • the processing space is configured as a space for polishing the blade.
  • the present invention can also be adopted as a processing chamber in which the processing space is configured as a space for the processing of charging explosives.
  • the processing space is configured as a space for the processing of charging explosives.
  • the present invention can also be adopted as a processing chamber in which the processing space is a space for vapor deposition processing. This is effective because high-quality vapor deposition can be performed without vapor deposition in a vacuum.
  • the present invention can also be adopted as a processing room in which the processing space is constituted by a space for food processing.
  • the processing space is constituted by a space for food processing.
  • food deteriorates in the presence of oxygen, and it is difficult to store it for a long time, but there are problems in the manufacturing process.
  • Food includes not only food but also drinks.
  • it is also applied to processing such as roasting of coffee beans.
  • plastic production, molding, metal refining, molding, and glass production and melt molding in the presence of air in the air is not preferable because the respective objects are susceptible to denaturation.
  • some operations use fire, which may cause fire problems. Performing such an operation in a processing chamber provided with a processing space in a helium or argon atmosphere can prevent denaturation and prevent a fire problem.
  • the present invention can also be applied to a processing chamber in which the processing space forms a clean room. Because helium is lighter than air, airborne substances such as dust fall quickly to the ground surface in a helium atmosphere. Therefore, it is preferable to use the processing space as a clean room that does not like the presence of dust and the like. In addition, there are many bacterial species that can survive only in the presence of oxygen, and in a helium or argon atmosphere, the growth of such bacterial species can be prevented.
  • the present invention can also be applied as a processing chamber in which the processing space is a kneading space for cement.
  • the processing space is a kneading space for cement.
  • the present invention can be applied to a processing chamber in which a processing space forms a space for a semiconductor assembling process or a manufacturing process.
  • the present invention can be applied to a processing room in which the processing space forms a space for fire extinguishing work. If a fire occurs in a space with an air atmosphere, the helium gas flows into the processing chamber, causing helium to accumulate in a layer above, so that the fire does not spread above the helium layer and is easily extinguished. A fire is set.
  • helium gas is introduced from the inlet of the processing chamber, and is replaced with air from above in the space of the processing chamber as the helium gas flows in, and the air is discharged from the exhaust port below.
  • a treatment method in a treatment space in a helium gas atmosphere, or introduction of lithium gas from the inlet of the treatment chamber, and replacement of air from above in the treatment chamber space with the inflow of helium gas is employed.
  • Helium gas is introduced from the inlet of the processing chamber, and is replaced with air from above in the space of the processing chamber along with the inflow of the helium gas, and the air is discharged from the exhaust port below, and then helium is discharged.
  • Helium gas is introduced from the processing chamber obtained in the processing space in a gas atmosphere or from the inlet of the processing chamber, and is replaced with air from above in the processing chamber space as the helium gas flows in. After the air is exhausted from the exhaust port at the lower part, it is processed in a processing space in a helium gas atmosphere, whereby a processed product obtained can be produced. Therefore, it is possible to solve the above-mentioned technical problems that have been treated in an air atmosphere. BRIEF DESCRIPTION OF THE FIGURES 1 P98 / 01617
  • FIG. 1 is a conceptual diagram showing the entire processing chamber according to the present invention.
  • FIG. 2 is a conceptual diagram of a processing room including a processing space having a helium gas atmosphere on the upper floor and a processing space having an air atmosphere on the lower floor.
  • FIG. 3 is a schematic diagram of a simplified processing chamber according to the present invention. BEST MODE FOR CARRYING OUT THE INVENTION
  • FIG. 1 is a view showing the concept of a processing chamber according to the present invention.
  • the processing chamber according to the present invention has four closed side walls and a closed ceiling, and requires at least an exhaust port 1 for exhausting air and an inlet 2 for inflow of helium gas.
  • the exhaust port 1 needs to be provided below the processing chamber, but the location of the inlet 2 is not particularly limited. However, in order to effectively make the air layer exist below the helium layer, it is preferable to provide the inflow port 2 above the processing chamber.
  • the treatments considered to be effective are not limited to those described above, but require the storage and production of materials that do not favor contact with air, work to generate large amounts of dust, and removal of dust. It can be widely and safely used for these tasks.
  • Fig. 2 shows a conceptual diagram of a processing room consisting of a processing space with a helium gas atmosphere upstairs and a processing space with an air atmosphere downstairs.
  • 3 in the figure indicates the threshold for separating both layers. You.
  • the outlet 1 be provided to some extent above. In other words, it is unlikely that helium accumulates below the position of the outlet 1, so that air can be reliably maintained below the outlet 1.
  • the sheet When the processing space in the helium atmosphere is constituted by the covering sheet, the sheet may be covered on the work object, and the helium gas may flow from the bottom. Helium is replaced with air in sheet ⁇ , and eventually helium is filled in the sheet.
  • This treatment space is effective outdoors, for example, when filling and painting concrete in the building construction process.By changing the size of the sheet, it can be used in a helium atmosphere regardless of the size of the target object. This is preferable in that a processing space can be created.
  • the mechanism for filling the processing chamber with helium gas will be described in more detail. In FIGS.
  • the helium gas flowing in from the inflow port 2 accumulates upward in the processing chamber and pushes air downward.
  • HE in the figure indicates a helium layer
  • A indicates an air layer.
  • the helium gas continues to flow, the thickness of the helium layer HE increases, and the air constituting the air layer A is exhausted from the outlet 1 to the outside of the processing chamber. Therefore, the air layer that has existed in the processing chamber is eventually replaced by the helium layer, and the processing chamber is filled with helium gas.
  • helium gas is contained at a certain concentration in the gas discharged from the exhaust port, it can be considered that the gas in the processing chamber is filled with helium gas.
  • the specific concentration of the exhaust gas may be freely set according to the anaerobic degree of the treatment, and is not particularly limited.
  • a helium layer must be used on the upper floor and an air layer must be used on the lower floor.
  • there are 3 floors above and below It is necessary to provide a gap to allow sufficient ventilation between the lower part, and the size of the gap may be determined by the inflow speed of the helium gas.
  • the inlet 2 for helium gas inflow provided in the upper part of the processing chamber is used as an outlet for helium gas exhaust, and It is preferable that the air exhaust port 1 provided at the lower part be used as an argon gas inlet.
  • helium gas is introduced into the processing chamber space, air that is heavier than helium gas is exhausted from the processing chamber space, and helium gas lighter than argon gas is discharged from the lower part of the processing chamber.
  • the gas can be exhausted from the helium gas inlet 2 provided in the upper part of the processing chamber.
  • the processing chamber can have an atmosphere of helium gas at the top of the processing chamber and an atmosphere of argon gas at the bottom.
  • the processing in the processing chamber of the present invention can be performed by introducing a robot or the like into the processing chamber, but the processing can also be configured to be performed by the operator himself.
  • an outer wall 5 constituting a closed space 4 filled with an inert gas, and a continuous space provided on the outer wall 5, connected to an outer space 6 inside the closed space 4, It is possible to employ a processing room provided with a work partition 7 into which workers enter.
  • the outer wall 5 may be an inelastic structure, but may be made of an elastic material or an elastic body such as rubber or elastomer together with the working partition 7.
  • the working partition 7 has a human shape, which facilitates the work. 8 indicates an operator.
  • Fig. 3 is a schematic diagram of a simplified processing chamber, so this type of processing chamber has an inlet for helium gas and an outlet for air, and a loading port for the processing object into the space. Provided.
  • a space filled with high-purity oxygen can be created by using the above-described filling method.
  • an inert gas such as helium gas or argon gas
  • a space filled with high-purity oxygen can be created by using the above-described filling method.
  • helium gas is introduced into the processing chamber space, air that is heavier than helium gas is exhausted from the processing chamber space, and then oxygen gas is introduced into the processing chamber space, and helium gas in the processing chamber space is removed.
  • An oxygen gas filling method in which the processing chamber space is filled with oxygen gas instead of oxygen gas can also be employed.
  • the processing chamber of the present invention is used for welding processing, soldering, fabrication, rolling of structures, bleeding of concrete, painting and drying, storage of foods and the like, packaging, cutting of blades, polishing of explosives, etc.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Ventilation (AREA)

Abstract

On décrit une chambre de traitement qui comprend un orifice d'entrée (2) par lequel de l'hélium est introduit dans un espace, un orifice de sortie (1) par lequel sort l'air ayant été remplacé par l'hélium dans la partie supérieure de l'espace et un espace de traitement prévu dans l'espace et contenant une atmosphère d'hélium. Dans cette chambre, il est possible de stocker et de produire facilement et sans risque dans une atmosphère dépourvue d'air une matière qui est facilement influencée par l'air. En outre, un travail qui produit une grande quantité de poussière et un travail qui ne doit pas être effectué en présence de poussière peuvent être effectués avec une efficacité améliorée.
PCT/JP1998/001617 1998-04-06 1998-04-06 Chambre de traitement WO1999051333A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU65238/98A AU6523898A (en) 1998-04-06 1998-04-06 Treatment chamber
PCT/JP1998/001617 WO1999051333A1 (fr) 1998-04-06 1998-04-06 Chambre de traitement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1998/001617 WO1999051333A1 (fr) 1998-04-06 1998-04-06 Chambre de traitement

Publications (1)

Publication Number Publication Date
WO1999051333A1 true WO1999051333A1 (fr) 1999-10-14

Family

ID=14208010

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1998/001617 WO1999051333A1 (fr) 1998-04-06 1998-04-06 Chambre de traitement

Country Status (2)

Country Link
AU (1) AU6523898A (fr)
WO (1) WO1999051333A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH026069A (ja) * 1987-12-24 1990-01-10 Westinghouse Electric Corp <We> 遮蔽ガスを受け入れる溶接室及びその使用方法
JPH0576615A (ja) * 1991-09-24 1993-03-30 Araki Giken Kogyo Kk 作業方法及びガスチヤンバー室及びその人体呼吸保護具

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH026069A (ja) * 1987-12-24 1990-01-10 Westinghouse Electric Corp <We> 遮蔽ガスを受け入れる溶接室及びその使用方法
JPH0576615A (ja) * 1991-09-24 1993-03-30 Araki Giken Kogyo Kk 作業方法及びガスチヤンバー室及びその人体呼吸保護具

Also Published As

Publication number Publication date
AU6523898A (en) 1999-10-25

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