WO2020262090A1 - 等方圧加圧装置、等方圧加圧装置用収容容器、等方圧加圧処理方法 - Google Patents

等方圧加圧装置、等方圧加圧装置用収容容器、等方圧加圧処理方法 Download PDF

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Publication number
WO2020262090A1
WO2020262090A1 PCT/JP2020/023473 JP2020023473W WO2020262090A1 WO 2020262090 A1 WO2020262090 A1 WO 2020262090A1 JP 2020023473 W JP2020023473 W JP 2020023473W WO 2020262090 A1 WO2020262090 A1 WO 2020262090A1
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WIPO (PCT)
Prior art keywords
pressure
space
flow path
storage container
processing space
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Application number
PCT/JP2020/023473
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English (en)
French (fr)
Japanese (ja)
Inventor
鈴木　一也
友哉 南野
Original Assignee
株式会社神戸製鋼所
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.)
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Application filed by 株式会社神戸製鋼所 filed Critical 株式会社神戸製鋼所
Priority to AU2020306889A priority Critical patent/AU2020306889B2/en
Priority to CN202080045078.9A priority patent/CN113966173A/zh
Publication of WO2020262090A1 publication Critical patent/WO2020262090A1/ja

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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/015—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with pressure variation, shock, acceleration or shear stress or cavitation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/14—Both compacting and sintering simultaneously
    • B22F3/15—Hot isostatic pressing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B5/00—Presses characterised by the use of pressing means other than those mentioned in the preceding groups
    • B30B5/02—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of a flexible element, e.g. diaphragm, urged by fluid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B17/00—Furnaces of a kind not covered by any preceding group

Definitions

  • the present invention relates to an isotropic pressure pressurizing device, a container for an isotropic pressure pressurizing device, and an isotropic pressure pressurizing treatment method.
  • a pressurizing device that applies a pressure treatment (HPP treatment: High Pressure Processing) to a object to be treated
  • HPP treatment High Pressure Processing
  • a pressurizing device the object to be processed is housed in a tubular pressure vessel, and the pressure medium is sealed in the pressure vessel to perform the pressurizing treatment.
  • pressure treatment is effective because the taste, texture, flavor, etc. of food are less likely to be impaired as compared with high temperature heat treatment, but on the other hand, bacteria having pressure resistance (for example, spore bacteria) can be sterilized. It is difficult to sterilize.
  • Patent Document 1 discloses a technique for sterilizing spore-forming bacteria by combining the above-mentioned pressure treatment with a heat treatment at 100 ° C. or lower. Specifically, the object to be treated is subjected to a hydrostatic pressure treatment of 100 kg / cm 2 or more under a temperature condition of 100 ° C. or lower, and then a heat treatment of 1 minute or more under a temperature condition of 55 ° C. to 100 ° C. It is disclosed to do.
  • Patent Document 1 does not disclose a specific pressurizing device capable of subjecting the object to be treated to the above-mentioned pressurization treatment and heat treatment. Further, conventionally, in order to apply pressure treatment and heat treatment to an object to be treated, it is necessary for the pressure vessel to have high heat insulation and high pressure resistance, which is practical due to problems such as an increase in size and cost of the device. It has not been converted.
  • An object of the present invention is to provide an isotropic pressure pressurizing device, a container for an isotropic pressure pressurizing device, and an isotropic pressure pressurizing treatment method capable of performing a pressure treatment and a heat treatment on an object to be treated. To do.
  • What is provided by the present invention is an isotropic pressure pressurizing device that performs isotropic pressure pressurization treatment on an object to be processed using a pressure medium, and the isotropic pressure pressurizing device uses a pressure medium.
  • the storage container is provided with a first flow path that communicates the storage space and the processing space with each other, and is provided independently of the first flow path, and the storage space and the processing space are provided.
  • the treatment is performed from the accommodation space in the first flow path, which is arranged in the first flow path and the second flow path communicating with the processing space.
  • the flow of the pressure medium from the processing space to the accommodation space in the first flow path is allowed while the flow of the pressure medium to the space is blocked, while the pressure in the processing space is equal to or less than the pressure in the accommodation space.
  • a first check valve that blocks the flow of the pressure medium between the processing space and the accommodating space in the first flow path and seals the accommodating space, and the accommodating space arranged in the second flow path.
  • an isotropic pressure pressurizing device that performs isotropic pressure pressurization treatment on an object to be processed by using a pressure medium, including a cylindrical inner peripheral surface, and the subject to be internally described. It is a storage container for an isotropic pressure pressurizing device that is detachably attached to a pressure vessel in which a processing space capable of storing a processed material is formed.
  • the storage container for the isotropic pressure pressurizing device is provided independently of the storage space, the first flow path that communicates the storage space and the processing space with each other, and the first flow path, and the storage is provided.
  • a second flow path that communicates the space and the processing space with each other, and the accommodation space in the first flow path that is arranged in the first flow path and the pressure in the processing space is higher than the pressure in the accommodation space. Allows the flow of the pressure medium from the processing space to the accommodation space in the first flow path while blocking the flow of the pressure medium from the processing space to the processing space, while the pressure in the processing space is the pressure in the accommodation space.
  • a first check valve that blocks the flow of the pressure medium between the processing space and the accommodating space in the first flow path and seals the accommodating space is arranged in the second flow path.
  • the pressure medium flows from the processing space in the second flow path to the accommodation space in a state of being blocked from the accommodation space in the second flow path. While allowing the flow of the pressure medium into the processing space, the flow of the pressure medium between the processing space and the accommodation space in the second flow path when the pressure in the processing space is equal to or higher than the pressure in the accommodation space. It is provided with a second check valve for blocking the pressure and sealing the accommodation space.
  • an isotropic pressure pressurizing treatment method in which an isotropic pressure pressurizing treatment is performed on an object to be treated by using a pressure medium
  • the isotropic pressure pressurizing treatment method is a pressure.
  • a pressure vessel in which a processing space capable of receiving a medium is formed, and a storage vessel in which a storage space capable of accommodating the object to be processed is formed, and the storage space and the outside of the storage container are formed.
  • a preparation step for preparing a storage container including at least one flow path communicating with the above, and a cover for storing the object to be processed in the storage space of the storage vessel and filling the storage space with a first pressure medium.
  • a processing object accommodating step an accommodating container arranging step of arranging the accommodating container containing the object to be processed in the processing space of the pressure vessel, and a temperature lower than that of the first pressure medium in the processing space of the pressure vessel. While supplying the set second pressure medium and pressurizing the second pressure medium, the second pressure medium is allowed to flow from the processing space into the accommodation space through at least one flow path.
  • the object to be treated in the storage vessel is provided with a pressure treatment step of applying an isotropic pressure pressure treatment.
  • FIG. 1 is a perspective view of a pressurizing device 1 according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of the pressure vessel 2 and the storage container 50 of the pressurizing device 1 according to the present embodiment.
  • FIG. 3 is a cross-sectional view of the storage container 50 of the pressurizing device 1 according to the present embodiment.
  • the pressurizing device 1 performs an isotropic pressure pressurizing treatment on the object W to be processed using a pressure medium.
  • the object to be treated W is used as food, but the object W to be processed may be a product other than food (for example, a beverage) or an inorganic substance such as metal powder or ceramic powder ( It may be an inorganic powder).
  • the pressurizing device 1 includes a pressure vessel 2 (FIG. 2), a storage container 50, and a pressurizing device main body 100 (FIG. 1).
  • the pressurizing device main body 100 includes a press frame 10, a carry-in rail 11, a carry-out rail 12, a moving rail 13, a water supply / drainage unit 31 (pressure medium supply mechanism), and a pump unit 32 (pressurization mechanism). , And a control unit 35.
  • the pressure vessel 2 houses the object W to be processed inside, and performs isotropic pressure pressurization treatment on the object W to be processed.
  • the pressure vessel 2 has a container body 20, a first lid portion 21, and a second lid portion 22.
  • the pressure vessel 2 is made of a metal material such as stainless steel in order to have high pressure resistance.
  • the container body 20 includes a cylindrical inner peripheral surface formed around the central axis CL1 extending in the horizontal direction. Inside the container body 20, a processing space S1 defined by the inner peripheral surface is formed, and both ends of the inner peripheral surface in the axial direction are opened (FIG. 2).
  • the first lid portion 21 and the second lid portion 22 are attached to both ends of the container body 20 in the axial direction, respectively, and seal the processing space S1.
  • the first lid portion 21 has an encapsulation portion 21A and a flange 21B
  • the second lid portion 22 has an encapsulation portion 22A and a flange 22B.
  • the sealing portion 21A and the sealing portion 22A are inserted into the first opening 20A and the second opening 20B (FIG. 1) of the container body 20, respectively, and seal the processing space S1.
  • the flange 21B and the flange 22B abut on both ends of the container body 20 in the axial direction.
  • the first lid portion 21 has a water supply / drainage passage 211
  • the second lid portion 22 has a water supply / drainage passage 221.
  • the water supply / drainage passage 211 communicates the outside of the first lid portion 21 with the treatment space S1, and the pressure medium after the pressurization treatment is discharged from the treatment space S1 through the water supply / drainage passage 211.
  • the water supply / drainage channel 221 communicates with the water supply / drainage unit 31 and the pump unit 32 via a flow path (not shown), and the pressure medium flows into the treatment space S1 through the water supply / drainage channel 221 and is processed through the water supply / drainage channel 221.
  • the pressure medium is discharged from the space S1.
  • a valve (not shown) that can be opened and closed as needed is arranged in the water supply / drainage passage 211 and the water supply / drainage passage 221.
  • the storage container 50 stores the object W to be processed and is arranged in the processing space S1 of the pressure vessel 2 (FIG. 2).
  • a storage space S2 capable of storing the object to be processed W is formed inside the storage container 50 (FIG. 2).
  • the press frame 10 (FIG. 1) has a function of supporting the axial force acting on both end lids of the pressure vessel 2.
  • the press frame 10 has a frame structure, and when the pressure vessel 2 is arranged at the pressurizing position P in the frame, the isotropic pressure pressurizing treatment is applied to the object W to be processed in the pressure vessel 2.
  • the moving rail 13 guides the container body 20 of the pressure vessel 2 so that the container body 20 can move between the pressurizing position P and the standby position Q.
  • the container body 20 moves between the pressurizing position P and the standby position Q by receiving a driving force of a driving mechanism (not shown).
  • the standby position Q is a position separated from the pressurizing position P.
  • the first lid portion 21 and the second lid portion 22 of the pressure vessel 2 are always arranged at the pressurizing position P.
  • a drive cylinder (not shown) moves along the first lid 21 and the second lid 22 along the axial direction, and as shown in FIG. 2, the container body 20 Attach to both ends.
  • the carry-in rail 11 guides the storage container 50 toward the inside of the container body 20 that stands by at the standby position Q before the pressurization process.
  • the carry-out rail 12 guides the storage container 50 so as to pull out the storage container 50 from the container body 20 that has been moved to the standby position Q after the pressurization process.
  • the water supply / drainage unit 31 includes the tank 31A and supplies the pressure medium to the processing space S1 of the pressure vessel 2.
  • water or hot water is used as the pressure medium.
  • the pump unit 32 pressurizes the pressure medium enclosed in the processing space S1.
  • the pressure medium is supplied to the processing space S1 and at the same time, the pressure medium is pressurized by the pump unit 32.
  • the control unit 35 controls the operations of the water supply / drainage unit 31, the pump unit 32, the drive mechanism, and the drive cylinder.
  • the control unit 35 has an operation panel (not shown).
  • the storage container 50 includes a storage container main body 501, a lid portion 502 (opening / closing member), a first check valve 503, a second check valve 504, and a seal member 505. ..
  • the storage container body 501 is a main body portion of the storage container 50 and has a cylindrical shape formed around the central axis CL2. Inside the storage container body 501, a storage space S2 for accommodating the object W to be processed is formed, which is defined by a cylindrical inner peripheral surface of the storage container body 501. Further, the storage container main body 501 is formed with an opening by opening one end of both ends in the axial direction of the storage container main body 501. The opening allows the object W to be processed to pass through because the object W to be processed is arranged in the accommodation space S2. In other words, the worker can put the object W to be processed into the accommodation space S2 through the opening.
  • the lid 502 is attached to the axial end of the storage container body 501 to open and close the opening.
  • a plurality of bolt insertion portions 502A are formed on the lid portion 502.
  • the fastening bolt 506 inserted into the bolt insertion portion 502A is tightened into a bolt hole (not shown) opened in the lid portion 502 and the storage container body 501, so that the lid portion 502 is accommodated. It is fixed to the container body 501.
  • the seal member 505 is interposed at the joint portion between the storage container main body 501 and the lid portion 502, and prevents the pressure medium from flowing between the processing space S1 and the storage space S2 through the joint portion.
  • the lid portion 502 is formed with a first flow path L1 and a second flow path L2, respectively.
  • the first flow path L1 and the second flow path L2 communicate with each other the outside of the storage container 50 (processing space S1 in FIG. 2) and the storage space S2, and allow the pressure medium to flow.
  • the first check valve 503 is arranged in the first flow path L1.
  • the first check valve 503 is in a state where the flow of the pressure medium from the accommodation space S2 to the processing space S1 in the first flow path L1 is blocked when the pressure in the processing space S1 is higher than the pressure in the accommodation space S2. Allows the flow of the pressure medium from the processing space S1 to the accommodation space S2 in the flow path L1.
  • the first check valve 503 blocks the flow of the pressure medium between the processing space S1 and the accommodating space S2 in the first flow path L1 when the pressure in the processing space S1 is equal to or less than the pressure in the accommodating space S2.
  • the accommodation space S2 is sealed.
  • the second check valve 504 is arranged in the second flow path L2.
  • the second check valve 504 is in a state where the flow of the pressure medium from the processing space S1 to the accommodating space S2 in the second flow path L2 is blocked when the pressure in the accommodating space S2 is higher than the pressure in the processing space S1. Allows the flow of the pressure medium from the accommodation space S2 in the flow path L2 to the processing space S1.
  • the second check valve 504 blocks the flow of the pressure medium between the processing space S1 and the accommodating space S2 in the second flow path L2 when the pressure in the processing space S1 is equal to or higher than the pressure in the accommodating space S2.
  • the space S2 is sealed.
  • the equal pressure between the processing space S1 and the accommodating space S2 means that, for example, the pressure difference between the two is 0.3 MPa (check valve operating threshold value) or less.
  • the check valve operation threshold value may be set according to the usage conditions of the first check valve 503 and the second check valve 504. As will be described later, since the pressure in the processing space S1 is set to 600 MPa during the pressurizing process, the pressure in the processing space S1 is in a state where the differential pressure between the processing space S1 and the accommodation space S2 is equal to or less than the check valve operating threshold. And the pressure in the accommodation space S2 can be regarded as equal to each other.
  • the storage container main body 501 and the lid portion 502 of the storage container 50 are made of a material having a lower thermal conductivity than the pressure vessel 2.
  • the storage container body 501 and the lid 502 may be made of vinyl chloride, MC nylon, Teflon (registered trademark), or the like. Further, these materials may be used for a part of the storage container main body 501 and the lid portion 502. According to such a configuration, the heat retention of the storage container 50 can be maintained high.
  • the pressure vessel 2 is made of a metal material having high pressure resistance in order to perform a pressure treatment.
  • the pressure vessel 2 When the isotropic pressure pressurizing treatment is applied to the object W to be processed, first, the pressure vessel 2, the accommodating container 50, and the pressurizing device main body 100 are prepared (preparation step). As described above, the container body 20 of the pressure vessel 2 is arranged at the standby position Q on the moving rail 13, and the first lid portion 21 and the second lid portion 22 of the pressure vessel 2 are arranged on the press frame 10. ing. Further, the storage container 50 is arranged on the carry-in rail 11. The operator stores the object to be processed W such as food in the container body 501 through the opening of the container body 501 with the lid portion 502 removed (process for accommodating the object to be processed).
  • a pipe (not shown) is attached to the inlet of the first flow path L1 and then passed through the first flow path L1.
  • Hot water (first pressure medium) at 80 ° C. is supplied to the storage space S2 (object storage step).
  • the first flow path L1 is closed when the inside of the accommodation space S2 is filled with hot water.
  • Hot water may be supplied to the processing space S1 through the opening of the storage container main body 501 with the lid portion 502 removed from the storage container main body 501.
  • it is desirable that the posture of the storage container body 501 is changed so that the central axis CL2 of FIG. 3 faces in the vertical direction and the opening of the storage container body 501 faces upward.
  • the operator inserts the storage container 50 into the container body 20 along the carry-in rail 11 (containment container placement process). Further, the operator operates the control unit 35 to install the container body 20 at the pressurizing position P in the press frame 10 along the moving rail 13. At the pressurizing position P on the moving rail 13, the first lid portion 21 and the second lid portion 22 are arranged so as to face the container body 20. Then, when the container body 20 is arranged at the pressurizing position P, a drive cylinder (not shown) extends, and the first lid portion 21 and the second lid portion 22 are respectively placed on the container body 20 via a pressure receiving plate (not shown). It is attached to (Fig. 2). As a result, the processing space S1 is sealed.
  • control unit 35 controls the water supply / drainage unit 31 in response to the operation command of the operator, and water (second pressure medium) at room temperature (20 ° C.) is supplied from the water supply / drainage unit 31 into the processing space S1 of the pressure vessel 2. Will be done.
  • the amount of water is, for example, 200 liters.
  • the temperature of the water is set lower than that of the hot water charged into the accommodation space S2. Water is filled until it fills the treatment space S1.
  • the control unit 35 controls the pump unit 32 to pressurize the water in the treatment space S1 (isotropic pressure pressurization treatment, pressurization treatment step).
  • the pressure in the processing space S1 is set to about 600 MPa.
  • the storage space S2 in the storage container 50 is set to atmospheric pressure at the start of pressurization. Therefore, in response to the differential pressure between the processing space S1 and the accommodating space S2, the first check valve 503 opens the first flow path L1, and water passes from the processing space S1 to the accommodating space S2 through the first flow path L1.
  • the action of the first check valve 503 suppresses the replacement of the pressure medium between the processing space S1 and the accommodation space S2, and the heat insulating performance of the storage container 50 causes the inside of the accommodation space S2 to be 70 ° C. to 80 ° C.
  • a high pressure to the object W to be processed for a predetermined time while being maintained at a temperature of ° C. (heat retention function), a high bactericidal action on the object W to be processed in the storage container 50 is exhibited.
  • the process space S1 is depressurized. Specifically, water is discharged from the water supply / drainage passage 211 of the first lid portion 21 and the water supply / drainage passage 221 of the second lid portion 22. At this time, when water is discharged from the processing space S1, the second check valve 504 opens the second flow path L2 due to the differential pressure generated between the processing space S1 and the accommodating space S2. As a result, the pressure medium (water in which the hot water first introduced into the accommodation space S2 and the water supplied to the treatment space S1 are mixed) is discharged from the accommodation space S2 into the treatment space S1, and the inside of the accommodation space S2 is filled. The pressure inside the pressure vessel 2 is reduced while approaching atmospheric pressure (decompression treatment step).
  • a drive cylinder (not shown) detaches the first lid portion 21 and the second lid portion 22 from the container body 20 via the pressure receiving plate.
  • the container body 20 including the storage container 50 is moved to the standby position Q again (FIG. 1). Then, the storage container 50 is pulled out from the container main body 20 along the carry-out rail 12, and the object W to be processed after the pressurization treatment is taken out from the storage container 50.
  • a plurality of storage containers 50 may be prepared for one container body 20.
  • one storage container 50 is charged into the container body 20 and undergoes pressure treatment at the pressurizing position P
  • the storage container 50 on the carry-in rail 11 is charged with the object W to be processed and hot water.
  • the supply operation of (first pressure medium) may be performed.
  • the storage container 50 has a first flow path L1, a second flow path L2, a first check valve 503, and a second check valve 504.
  • the object W to be processed is accommodated in the accommodating space S2 of the accommodating container 50, the accommodating container 50 is arranged in the processing space S1 of the pressure vessel 2, and then the pressure medium is supplied to the processing space S1.
  • the object W to be processed can be subjected to isotropic pressure pressurization treatment.
  • the storage container 50 is provided with a first flow path L1 and a second flow path L2, and a first check valve 503 and a second check valve 504 are arranged in each flow path.
  • the second check valve 504 receives the differential pressure between the processing space S1 and the accommodation space S2, and the pressure medium is moved from the accommodation space S2 to the processing space S1. Allows to leak. Therefore, the storage container 50 is prevented from being damaged by the differential pressure between the processing space S1 and the storage space S2.
  • the inside of the storage container 50 is added to the material W while being kept warm.
  • Pressure treatment can be applied.
  • the pressure vessel 2 can be designed with an emphasis on pressure resistance, and the pressure vessel 2 and its peripheral members can be designed. The need to design and select materials to withstand high temperatures is reduced.
  • the storage container 50 is made of a material having a lower thermal conductivity than the pressure vessel 2. Therefore, since the heat insulating performance of the storage container 50 is set higher than that of the pressure vessel 2, the heat retention performance of the storage space S2 during the pressurization treatment is enhanced, and the heat treatment of the object W to be processed is stably performed. Can be done. Further, the need to use a material having high heat resistance is reduced for the pressure vessel 2, and a material having high pressure resistance can be used.
  • the first flow path L1 and the second flow path L2 can allow the flow of the pressure medium between the accommodation space S2 and the processing space S1 via the lid portion 502. , Each of which is arranged on the lid portion 502. Further, the first check valve 503 and the second check valve 504 are attached to the lid portion 502 corresponding to the first flow path L1 and the second flow path L2, respectively. Therefore, the object W to be processed can be easily charged into the storage space S2 through the opening of the storage container main body 501. Further, by integrating the first flow path L1, the second flow path L2, the first check valve 503, and the second check valve 504 in the lid portion 502, the configuration of the storage container 50 can be simplified. , The maintainability of the storage container 50 can be improved.
  • the lid portion 502 is attached to the storage container body 501 so as to close (seal) the opening of the storage container body 501 along the axial direction.
  • the opening is formed at the axial end of the storage container body 501
  • the storage container is compared with the case where the opening is formed at the axial center of the storage container body 501.
  • the rigidity of the main body 501 can be maintained high. Further, the object W to be processed and the pressure medium can be easily put into the storage space S2 through the axial end of the storage container main body 501, and the airtightness of the storage container 50 can be improved.
  • the pressurizing device main body 100 of the pressurizing device 1 pressurizes the water supply / drainage unit 31 that supplies the pressure medium to the processing space S1 of the pressure vessel 2 and the pump that pressurizes the pressure medium supplied to the processing space S1. It further includes a unit 32. Therefore, the isotropic pressure pressurization treatment can be stably performed on the object W to be treated.
  • the isotropic pressure pressurization treatment method for performing the isotropic pressure pressurization treatment on the object W to be processed according to the present embodiment using a pressure medium has the following steps.
  • the isotropic pressure pressurizing treatment method includes a preparation step, an object accommodating step, an accommodating container arranging step, and a pressurizing treatment step.
  • the object W to be processed is accommodated in the accommodation space S2 of the accommodation container 50, and the accommodation space S2 is filled with a first pressure medium made of hot water.
  • the storage container 50 including the object W to be processed is arranged in the processing space S1 of the pressure vessel 2.
  • a second pressure medium made of water set to a temperature lower than that of the hot water is supplied to the processing space S1 of the pressure vessel 2, the second pressure medium is pressurized, and the processing space S1 to the accommodation space S2
  • the object W to be processed in the storage container 50 is subjected to isotropic pressure pressurization treatment while allowing the second pressure medium to flow through the first flow path L1.
  • a first pressure medium composed of hot water together with the object W to be processed is supplied to the accommodation space S2 in the object accommodating step, and the hot water is supplied to the processing space S1 of the pressure vessel 2 in the pressurizing process.
  • a second pressure medium made of water having a lower temperature is supplied and pressurized, the second pressure medium flows from the processing space S1 into the accommodation space S2 through the first flow path L1, and the object W to be processed is isotropically pressurized. Will be done. Therefore, it is possible to apply the pressure treatment to the object W to be processed while keeping the inside of the accommodation space S2 at a temperature close to the temperature of the hot water. As a result, it is possible to perform the pressure treatment and the heat treatment on the object W to be treated in parallel.
  • the storage container 50 is composed of a first flow path L1 and a second flow path L2 in which the flow paths are independent of each other, and is arranged in the first flow path L1 for processing.
  • the pressure medium is prevented from flowing from the accommodation space S2 in the first flow path L1 to the processing space S1 and is accommodated from the processing space S1 in the first flow path L1.
  • the flow of the pressure medium between the processing space S1 and the accommodation space S2 in the first flow path L1 is allowed.
  • the first check valve 503 that blocks and seals the accommodation space S2 and the processing space S1 in the second flow path L2 are arranged in the second flow path L2 and the pressure in the accommodation space S2 is higher than the pressure in the processing space S1. Allows the flow of the pressure medium from the accommodation space S2 to the processing space S1 in the second flow path L2 while blocking the flow of the pressure medium from the accommodation space S2 to the accommodation space S2, while the pressure in the processing space S1 is the pressure in the accommodation space S2.
  • the inflow path of the second pressure medium from the processing space S1 during pressurization to the accommodating space S2 is limited to the first flow path L1 opened by the first check valve 503.
  • the subject W in the storage container 50 is subjected to isotropic pressure pressurization treatment.
  • the second pressure medium is discharged from the treatment space S1 and a second pressure is generated with the differential pressure generated between the treatment space S1 and the accommodation space S2.
  • the pressure is allowed to be discharged from the accommodation space S2 to the processing space S1 to discharge the pressure medium including the first pressure medium and the second pressure medium.
  • a depressurization treatment step of depressurizing the inside of the container 2 is further provided.
  • the second pressure medium flows from the processing space S1 into the accommodation space S2 by the action of the first check valve 503, and the object W to be processed is isotropically pressurized.
  • the first pressure medium is prevented from flowing out from the accommodation space S2 to the processing space S1 by the action of the second check valve 504
  • the inside of the accommodation space S2 is stably kept warm at a temperature close to the temperature of the hot water.
  • the second check valve 504 receives the differential pressure between the processing space S1 and the accommodating space S2, and the second check valve 504 moves from the accommodating space S2 to the processing space S1. Allow the pressure medium to flow out. Therefore, damage to the storage container 50 due to the differential pressure between the processing space S1 and the storage space S2 is further suppressed.
  • the preparation step is the storage container main body 501 having a cylindrical inner peripheral surface defining the storage space S2 as the storage container 50, and the object W to be processed is arranged in the storage space S2. Therefore, a storage container main body 501 having an opening that allows the object W to pass through, and a lid portion 502 that can open and close the opening, and a first flow path L1 in the lid portion 502. Includes preparing one having a second flow path L2, a lid 502 on which the first check valve 503 and the second check valve 504 are respectively arranged.
  • the object W to be processed is accommodated in the accommodation space S2 through the opening, the first pressure medium is filled in the accommodation space S2, and the opening is provided by the lid portion 502. Includes closing and each.
  • the object W to be processed can be easily charged into the storage space S2 through the opening of the storage container main body 501. Further, by consolidating the first flow path L1, the second flow path L2, the first check valve 503, and the second check valve 504 in the lid portion 502, the maintainability of the storage container 50 can be improved.
  • the preparation step includes preparing a container 50 made of a material having a lower thermal conductivity than the pressure vessel 2.
  • the inflow path of the second pressure medium from the processing space S1 to the accommodating space S2 is restricted to the first flow path L1 during pressurization, and the first pressure medium is transferred from the accommodating space S2. It includes suppressing the outflow to the processing space S1 and keeping the storage space S2 warm by the storage container 50.
  • the heat insulating performance of the storage container 50 is set higher than that of the pressure vessel 2, and the first pressure medium is prevented from flowing out from the storage space S2 to the processing space S1.
  • the heat retention performance of the accommodation space S2 during pressurization can be enhanced.
  • the storage container 50 includes the cylindrical inner peripheral surface of the pressurizing device 1 that performs isotropic pressure pressurization treatment on the object W to be processed by using a pressure medium, and the subject is internally described.
  • This is an isotropic pressure pressurizing device accommodating container that is detachably attached to a pressure vessel 2 in which a processing space S1 capable of accommodating a processed object W is formed.
  • the storage container 50 is provided independently of the storage space S2, the first flow path L1 that communicates the storage space S2 and the processing space S1 with each other, and the first flow path L1, and the storage space S2.
  • the first flow path is arranged in the first flow path L1 and the second flow path L2 that communicates with each other and the processing space S1 and the pressure of the processing space S1 is higher than the pressure of the accommodation space S2. While blocking the flow of the pressure medium from the accommodation space S2 to the processing space S1 in L1, allowing the flow of the pressure medium from the processing space S1 to the accommodation space S2 in the first flow path L1. When the pressure in the processing space S1 is equal to or lower than the pressure in the accommodation space S2, the flow of the pressure medium between the processing space S1 and the accommodation space S2 in the first flow path L1 is blocked to seal the accommodation space S2.
  • the first check valve 503 and the second flow path L2 are arranged, and when the pressure in the accommodation space S2 is higher than the pressure in the processing space S1, the processing space S1 in the second flow path L2 accommodates the accommodation space S1. While the flow of the pressure medium from the accommodation space S2 in the second flow path L2 to the processing space S1 is allowed in a state where the flow of the pressure medium into the space S2 is blocked, the pressure in the processing space S1 is the accommodation space.
  • the second check valve 504 that blocks the flow of the pressure medium between the processing space S1 and the accommodating space S2 in the second flow path L2 and seals the accommodating space S2. Be prepared.
  • the storage container 50 is provided with a first flow path L1 and a second flow path L2, and a first check valve 503 and a second check valve 504 are arranged in each flow path.
  • a pressure medium made of, for example, hot water is supplied to the accommodation space S2 together with the object W to be processed in advance, and a pressure medium made of water having a temperature lower than that of the hot water is supplied to the treatment space S1 of the pressure vessel 2 to pressurize.
  • a low-temperature pressure medium flows from the processing space S1 into the accommodation space S2, and the object W to be processed is isotropically pressurized.
  • the pressure medium made of hot water is prevented from flowing out from the accommodation space S2 to the treatment space S1 by the action of the second check valve 504, the inside of the accommodation space S2 is kept warm at a temperature close to the temperature of the hot water. , It becomes possible to apply a pressure treatment to the object W to be treated. As a result, the pressure treatment and the heat treatment can be performed on the object W to be treated in parallel.
  • the pressurizing device 1 isotropic pressure pressurizing device
  • the accommodating container 50 accommodation container for the isotropic pressure pressurizing device
  • the isotropic pressure pressurizing method according to the embodiment of the present invention have been described above.
  • the invention is not limited to these embodiments, and the following modified embodiments are possible.
  • the temperature of the hot water (first pressure medium) previously charged into the storage space S2 of the storage container 50 is set to 80 ° C., and the water (second pressure medium) supplied to the treatment space S1 when pressurized is applied. ) Has been described as 20 ° C., but the present invention is not limited thereto. Assuming that the temperature of the first pressure medium is higher than the temperature of the second pressure medium, each temperature may be adjusted according to the object W to be processed.
  • FIG. 4 is a cross-sectional view of the storage container 50A of the isotropic pressure pressurizing device according to the first modification embodiment of the present invention.
  • openings are formed at both ends of the storage container body 501 in the axial direction, and a pair of lids 502 are attached to the storage container body 501 so as to close each opening.
  • first flow path L1 and the first check valve 503 are arranged on the lid portion 502 on the right side of FIG. 4, and the second flow path L2 and the second check valve 504 are provided on the lid portion 502 on the left side of FIG. Arranged. Even with such a configuration, it is possible to apply isotropic pressure pressurization treatment to the object W to be processed while maintaining the heat retention of the storage space S2 of the storage container 50. Also in FIG. 4, the first flow path L1, the second flow path L2, the first check valve 503, and the second check valve 504 may be collectively arranged on one lid portion 502. As described above, the opening and the lid 502 formed in the storage container main body 501 are not limited to one each, and a plurality of openings and lids 502 may be arranged.
  • FIG. 5 is a cross-sectional view of the storage container 50B of the isotropic pressure pressurizing device according to the second modification of the present invention.
  • an opening / closing lid 51 opening / closing member
  • the opening / closing lid 51 can seal and open the accommodating space S2, when the opening / closing lid 51 is closed with respect to the accommodating container main body 501, the processing space S1 and the accommodating space S2 through the peripheral edge of the opening / closing lid 51 There is no flow of pressure medium to and from.
  • a first flow path L1, a second flow path L2, a first check valve 503, and a second check valve 504 are arranged at the axial end of the storage container main body 501. Even with such a configuration, it is possible to apply isotropic pressure pressurization treatment to the object W to be processed while maintaining the heat retention of the storage space S2 of the storage container 50.
  • What is provided by the present invention is an isotropic pressure pressurizing device that performs isotropic pressure pressurization treatment on an object to be processed using a pressure medium, and the isotropic pressure pressurizing device uses a pressure medium.
  • the storage container is provided with a first flow path that communicates the storage space and the processing space with each other, and is provided independently of the first flow path, and the storage space and the processing space are provided.
  • the treatment is performed from the accommodation space in the first flow path, which is arranged in the first flow path and the second flow path communicating with the processing space.
  • the flow of the pressure medium from the processing space to the accommodation space in the first flow path is allowed while the flow of the pressure medium to the space is blocked, while the pressure in the processing space is equal to or less than the pressure in the accommodation space.
  • a first check valve that blocks the flow of the pressure medium between the processing space and the accommodating space in the first flow path and seals the accommodating space, and the accommodating space arranged in the second flow path.
  • the object to be processed is accommodated in the accommodation space of the storage container, the storage container is arranged in the processing space of the pressure vessel, and then the pressure medium is supplied to the processing space to equalize the object to be processed.
  • the storage container is provided with a first flow path and a second flow path, and a first check valve and a second check valve are arranged in each flow path. Therefore, when a pressure medium made of, for example, hot water is supplied to the accommodation space in advance together with the object to be treated, and a pressure medium made of water having a temperature lower than that of the hot water is supplied to the treatment space of the pressure vessel to pressurize the first reverse.
  • a low-temperature pressure medium flows from the processing space into the accommodation space, and the object to be processed is isotropically pressurized.
  • the pressure medium composed of hot water is prevented from flowing out from the accommodation space to the treatment space by the action of the second check valve, the object to be treated is kept warm at a temperature close to the temperature of the hot water in the accommodation space. Can be pressurized. As a result, it becomes possible to perform the pressure treatment and the heat treatment on the object to be treated in parallel. Further, since it is not necessary to fill the treatment space of the pressure vessel with a pressure medium made of hot water in order to heat-treat the object to be treated, the need to use a material having high heat resistance for the pressure vessel is reduced.
  • the pressure medium when the pressure medium is discharged from the treatment space after the pressurization treatment is completed, the pressure medium flows out from the accommodation space to the treatment space due to the differential pressure between the treatment space and the accommodation space. Tolerate. Therefore, the storage container is prevented from being damaged by the differential pressure between the processing space and the storage space.
  • the storage container is made of a material having a lower thermal conductivity than the pressure vessel.
  • the heat insulation performance of the storage container is set higher than that of the pressure vessel, so that the heat retention performance of the storage space during the pressurization process can be improved.
  • the storage container is a storage container main body having a cylindrical inner peripheral surface that defines the storage space, and the object to be processed passes through because the object to be processed is arranged in the storage space. It has a storage container body in which at least one opening is formed, and at least one opening / closing member attached to the storage container body so that the at least one opening can be opened / closed.
  • the first flow path and the second flow path are respectively arranged in the at least one opening / closing member, and the first check valve and the second check valve are the first flow path and the first check valve. It is desirable that they are attached to at least one opening / closing member corresponding to the second flow path.
  • the object to be processed can be easily put into the accommodation space through the opening. Further, since the opening / closing member has the first flow path, the second flow path, the first check valve and the second check valve, the maintainability of the storage container can be improved.
  • the at least one opening of the storage container body is formed by opening at least one end of both ends in the axial direction of the storage container body, and the at least one is formed. It is desirable that the opening / closing member can be attached to the at least one end of the container body so as to seal the at least one opening.
  • the storage container is compared with the case where the opening is formed at the axial center of the storage container body.
  • the rigidity of the main body can be maintained high. Further, the object to be processed and the pressure medium can be easily put into the storage space through the axial end of the storage container body.
  • a pressure medium supply mechanism that supplies a pressure medium to the processing space of the pressure vessel and a pressure mechanism that pressurizes the pressure medium supplied to the processing space.
  • isotropic pressure pressurization treatment can be stably performed on the object to be treated.
  • an isotropic pressure pressurizing device that performs isotropic pressure pressurization treatment on an object to be processed by using a pressure medium, including a cylindrical inner peripheral surface, and the subject to be internally described. It is a storage container for an isotropic pressure pressurizing device that is detachably attached to a pressure vessel in which a processing space capable of storing a processed material is formed.
  • the storage container for the isotropic pressure pressurizing device is provided independently of the storage space, the first flow path that communicates the storage space and the processing space with each other, and the first flow path, and the storage is provided.
  • a second flow path that communicates the space and the processing space with each other, and the accommodation space in the first flow path that is arranged in the first flow path and the pressure in the processing space is higher than the pressure in the accommodation space. Allows the flow of the pressure medium from the processing space to the accommodation space in the first flow path while blocking the flow of the pressure medium from the processing space to the processing space, while the pressure in the processing space is the pressure in the accommodation space.
  • a first check valve that blocks the flow of the pressure medium between the processing space and the accommodating space in the first flow path and seals the accommodating space is arranged in the second flow path.
  • the pressure medium flows from the processing space in the second flow path to the accommodation space in a state of being blocked from the accommodation space in the second flow path. While allowing the flow of the pressure medium into the processing space, the flow of the pressure medium between the processing space and the accommodation space in the second flow path when the pressure in the processing space is equal to or higher than the pressure in the accommodation space. It is provided with a second check valve for blocking the pressure and sealing the accommodation space.
  • the storage container for the isotropic pressure pressurizing device is provided with a first flow path and a second flow path, and a first check valve and a second check valve are arranged in each flow path.
  • a pressure medium made of, for example, hot water is supplied to the accommodation space in advance together with the object to be treated, and a pressure medium made of water having a temperature lower than that of the hot water is supplied to the treatment space of the pressure vessel to pressurize the first reverse. Due to the action of the check valve, a low-temperature pressure medium flows from the processing space into the accommodation space, and the object to be processed is isotropically pressurized.
  • the object to be treated is kept warm at a temperature close to the temperature of the hot water in the accommodation space. Can be pressurized. As a result, it becomes possible to perform the pressure treatment and the heat treatment on the object to be treated in parallel.
  • an isotropic pressure pressurizing treatment method in which an isotropic pressure pressurizing treatment is performed on an object to be treated by using a pressure medium
  • the isotropic pressure pressurizing treatment method is a pressure.
  • a pressure vessel in which a processing space capable of receiving a medium is formed, and a storage vessel in which a storage space capable of accommodating the object to be processed is formed, and the storage space and the outside of the storage container are formed.
  • a preparation step for preparing a storage container including at least one flow path communicating with the above, and a cover for storing the object to be processed in the storage space of the storage vessel and filling the storage space with a first pressure medium.
  • a processing object accommodating step an accommodating container arranging step of arranging the accommodating container containing the object to be processed in the processing space of the pressure vessel, and a temperature lower than that of the first pressure medium in the processing space of the pressure vessel. While supplying the set second pressure medium and pressurizing the second pressure medium, the second pressure medium is allowed to flow from the processing space into the accommodation space through at least one flow path.
  • the object to be treated in the storage vessel is provided with a pressure treatment step of applying an isotropic pressure pressure treatment.
  • a first pressure medium composed of, for example, hot water is supplied to the accommodation space together with the object to be processed in the process of accommodating the object to be processed, and the processing space of the pressure vessel is provided with a temperature lower than that of the hot water in the pressurization process.
  • a second pressure medium made of water is supplied and pressurized, the second pressure medium flows from the processing space into the accommodation space through at least one flow path, and the object to be processed is isotropically pressurized. Therefore, it is possible to apply pressure treatment to the object to be treated while keeping the inside of the accommodation space at a temperature close to the temperature of hot water. As a result, it is possible to perform the pressure treatment and the heat treatment on the object to be treated in parallel.
  • At least one of the flow paths is composed of a first flow path and a second flow path that are independent of each other, and is arranged in the first flow path to perform the processing.
  • the accommodation space from the processing space in the first flow path is blocked from flowing the pressure medium from the accommodation space to the processing space in the first flow path.
  • the flow of the pressure medium between the processing space and the accommodation space in the first flow path is blocked when the pressure in the processing space is equal to or lower than the pressure in the accommodation space.
  • the first check valve that seals the accommodation space and the processing space in the second flow path are arranged when the pressure in the accommodation space is higher than the pressure in the processing space.
  • the flow of the pressure medium from the accommodation space to the processing space in the second flow path is allowed while the flow of the pressure medium to the accommodation space is blocked, while the pressure in the processing space is equal to or higher than the pressure in the accommodation space.
  • the preparation comprises preparing a second check valve that blocks the flow of the pressure medium between the processing space and the accommodating space in the second flow path and seals the accommodating space. In the pressurizing treatment step, the inflow path of the second pressure medium from the processing space during pressurization to the accommodation space is restricted to the first flow path opened by the first check valve.
  • the subject to be treated in the storage container is subjected to isotropic pressure pressurization treatment, and after the pressurization treatment step, the second pressure medium is discharged from the treatment space to provide the treatment space and the storage space.
  • the pressure medium containing the first pressure medium and the second pressure medium can be moved from the accommodation space to the processing space. It is desirable to further include a decompression treatment step of reducing the pressure inside the pressure vessel while allowing the pressure to be discharged.
  • the second pressure medium flows from the processing space into the accommodation space by the action of the first check valve, and the object to be processed is isotropically pressurized.
  • the action of the second check valve prevents the first pressure medium from flowing out from the accommodation space to the processing space, the inside of the accommodation space is stably kept warm at a temperature close to the temperature of the first pressure medium.
  • the pressure medium is discharged from the treatment space after the pressurization treatment is completed, the pressure medium flows out from the storage space to the treatment space by the second check valve due to the differential pressure between the treatment space and the accommodation space. Tolerate. Therefore, damage to the storage container due to the differential pressure between the processing space and the storage space is further suppressed.
  • the preparation step is the storage container main body having a cylindrical inner peripheral surface that defines the storage space as the storage container, and the object to be processed is arranged in the storage space.
  • the processing object accommodating step includes accommodating the object to be processed in the accommodation space through the at least one opening, filling the accommodation space with the first pressure medium, and at least one of the above. It is desirable to include closing at least one opening by an opening / closing member.
  • the object to be processed can be easily put into the accommodation space through the opening. Further, since the opening / closing member has the first flow path, the second flow path, the first check valve and the second check valve, the maintainability of the storage container can be improved.
  • the preparation step includes preparing a container made of a material having a thermal conductivity lower than that of the pressure vessel, and the pressurization treatment step includes the treatment during pressurization.
  • the inflow path of the second pressure medium from the space to the accommodation space is restricted to the at least one flow path, the first pressure medium is prevented from flowing out from the accommodation space to the processing space, and the said. It is desirable to include keeping the storage space warm with a storage container.
  • the heat insulating performance of the accommodating vessel is set higher than that of the pressure vessel, and the first pressure medium is prevented from flowing out from the accommodating space to the processing space.
  • the heat retention performance can be improved.
  • an isotropic pressure pressurizing device a container for an isotropic pressure pressurizing device, and an isotropic pressure pressurizing treatment capable of performing a pressure treatment and a heat treatment in parallel on an object to be treated.
  • a method is provided.

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PCT/JP2020/023473 2019-06-26 2020-06-15 等方圧加圧装置、等方圧加圧装置用収容容器、等方圧加圧処理方法 WO2020262090A1 (ja)

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Citations (4)

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JPS5989989A (ja) * 1982-11-12 1984-05-24 三菱重工業株式会社 熱間静水圧プレス装置の加熱炉
JPS60155888A (ja) * 1984-01-26 1985-08-15 三菱重工業株式会社 熱間静水圧加工方法およびその装置
JP2007308786A (ja) * 2006-05-22 2007-11-29 Kobe Steel Ltd 等方圧加圧装置
JP2018069245A (ja) * 2016-10-24 2018-05-10 株式会社神戸製鋼所 等方圧加圧装置、および等方圧加圧装置を用いた等方圧加圧方法

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JPH06153880A (ja) * 1992-11-20 1994-06-03 Ajinomoto Co Inc 新規殺菌方法
US5340419A (en) * 1992-12-21 1994-08-23 Metal Casting Technology, Inc. Method and apparatus for densifying an article
JP6511608B2 (ja) * 2015-05-15 2019-05-15 株式会社神戸製鋼所 等方圧加圧装置、およびそれを用いた加圧処理方法

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
JPS5989989A (ja) * 1982-11-12 1984-05-24 三菱重工業株式会社 熱間静水圧プレス装置の加熱炉
JPS60155888A (ja) * 1984-01-26 1985-08-15 三菱重工業株式会社 熱間静水圧加工方法およびその装置
JP2007308786A (ja) * 2006-05-22 2007-11-29 Kobe Steel Ltd 等方圧加圧装置
JP2018069245A (ja) * 2016-10-24 2018-05-10 株式会社神戸製鋼所 等方圧加圧装置、および等方圧加圧装置を用いた等方圧加圧方法

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