JP5064592B1

JP5064592B1 - High pressure processing equipment

Info

Publication number: JP5064592B1
Application number: JP2011196273A
Authority: JP
Inventors: 睦治武藤; 雄市大塚; 雅樹高頭; 淳平藤井
Original assignee: Nagaoka University of Technology
Current assignee: Nagaoka University of Technology
Priority date: 2011-09-08
Filing date: 2011-09-08
Publication date: 2012-10-31
Anticipated expiration: 2031-09-08
Also published as: JP2013056302A

Abstract

【課題】装置を小型化すると共に安価に製造することができ、万が一、圧力容器が破裂するような事故が発生した場合でも、圧力容器や蓋体の破片が周囲に飛散することなく、安全な状態が保てる十分な安全対策が成された実用性に優れた高圧処理装置を提供する。
【解決手段】取り出し開口部１を開閉する蓋体２を有する圧力容器３と、この蓋体２が圧力容器３内の圧力上昇によって開蓋方向に押圧された際にこの蓋体２の閉蓋状態を保持する閉蓋保持部４と、この蓋体２に押圧された閉蓋保持部４を受け止める受け止め部５とを備えた高圧処理装置において、閉蓋保持部４に対して所定長の間隙６を設けて補助受け止め部７を設け、この補助受け止め部７は、高圧処理時に受け止め部５が破損した際、閉蓋保持部４を受け止めるように構成した高圧処理装置。
【選択図】図２The device can be reduced in size and manufactured at low cost, and even if an accident that the pressure vessel ruptures should occur, the pressure vessel and the fragments of the lid body do not scatter around and are safe. Provided is a high-pressure processing apparatus excellent in practicality, in which sufficient safety measures have been taken to maintain the state.
A pressure vessel 3 having a lid 2 that opens and closes a take-out opening 1 and the lid 2 is closed when the lid 2 is pressed in the opening direction due to a pressure increase in the pressure vessel 3. In a high-pressure processing apparatus including a closed lid holding portion 4 that holds the state and a receiving portion 5 that receives the closed lid holding portion 4 pressed by the lid body 2, a gap having a predetermined length with respect to the closed lid holding portion 4. 6 is provided with an auxiliary receiving part 7, and this auxiliary receiving part 7 is configured to receive the closed lid holding part 4 when the receiving part 5 is damaged during high pressure processing.
[Selection] Figure 2

Description

本発明は、例えば食品を高圧処理する高圧処理装置に関するものである。 The present invention relates to a high-pressure processing apparatus that performs high-pressure processing of food, for example.

従来、食品の調理・加工・殺菌などの処理として加熱処理が行われているが、この加熱処理に代わる新たな食品処理技術として、近年、食品を高圧処理する高圧処理技術の研究開発が進められてきている。 Conventionally, heat treatment has been performed as a process for cooking, processing, and sterilization of food. Recently, research and development of high-pressure processing technology for high-pressure processing of food has been promoted as a new food processing technology to replace this heat treatment. It is coming.

この食品分野における高圧処理技術は、食品に非常に高い圧力を加えることで、食品を構成する分子を密に詰め込んだ状態とし、これによって、分子が物理的な変化を起こすことを利用する技術である。 This high-pressure processing technology in the food field is a technology that makes use of the fact that molecules that make up food are packed tightly by applying very high pressure to the food, thereby causing physical changes in the molecules. is there.

この高圧処理によって、例えば、タンパク質やデンプンは加熱した状態と非常によく似た状態に変性させたり、食材の色や香りを殆ど変化させることなく、更には、加熱処理の際には失われてしまうビタミンＣ等の栄養素を損なうことなく調理、加工することができたり、或いは、微生物にダメージを与えて増殖しないように不活性化させることも可能となる。 By this high-pressure treatment, for example, protein and starch are denatured to a state very similar to that in the heated state, the color and aroma of the food are hardly changed, and are lost during the heat treatment. It can be cooked and processed without damaging nutrients such as vitamin C, or inactivated so as not to grow by damaging microorganisms.

このような高圧処理は、食品に１００ＭＰａ以上（通常、２００ＭＰａ〜６００ＭＰａ）の超高圧（等方的な静水圧）を加えることで成されるものであり、この食品に高圧処理を施すために高圧処理装置が用いられている。 Such a high-pressure treatment is performed by applying an ultra-high pressure (isotropic hydrostatic pressure) of 100 MPa or more (usually 200 MPa to 600 MPa) to the food. A processing device is used.

この高圧処理に用いられる高圧処理装置は、直接加圧式（ピストン式）と間接加圧式（増圧ポンプ式）の二つの機構を持つものに大別され、直接加圧式（ピストン式）は、高圧小容量の処理に優れ、実験用に適し、間接加圧式（増圧ポンプ式）は、中高圧大容量の処理に優れ、産業用に適しており、何れの方式も、１００ＭＰａ以上の超高圧を被処理物に施すため、圧力容器内を密閉するための蓋体には非常に大きな圧力が加えられる。そのため、蓋体の閉蓋状態を保つために、従来は、プレスフレームを用いた構成とし、外部から蓋体を押し付けることで、圧力容器内から受ける押圧力に抗して閉蓋状態を保持するようにしていた（特許文献１）。 The high-pressure treatment equipment used for this high-pressure treatment is broadly divided into those that have two mechanisms, the direct pressurization type (piston type) and the indirect pressurization type (pressure booster pump type). Excellent for small volume treatment, suitable for experiments, indirect pressurization type (intensification pump type) is suitable for medium and high pressure, large capacity treatment and suitable for industrial use. In order to apply to the workpiece, a very large pressure is applied to the lid for sealing the inside of the pressure vessel. Therefore, in order to keep the lid closed, the conventional configuration uses a press frame, and the lid is pressed against the pressing force received from the pressure vessel by pressing the lid from outside. (Patent Document 1).

特開平０５−２９２９０２号公報JP 05-292902 A

このプレスフレームを採用した高圧処理装置は、蓋体自体の構造を単純にすることができ、また、容易に超高圧に耐え得る構成とすることができるメリットがある。しかし、その反面、複雑な構造のプレス機構を設けることで装置自体は高価となり、更に、超高圧に耐え得る強度を持たせるためにプレス機構自体の大きさも大きくなり装置全体が大型化してしまい、装置を小型化することが困難であった。 The high-pressure processing apparatus employing this press frame has the merit that the structure of the lid itself can be simplified and that the structure can easily withstand ultra-high pressure. However, on the other hand, providing the press mechanism with a complicated structure makes the device itself expensive, and further, the press mechanism itself becomes large and large as a whole in order to have strength that can withstand ultra-high pressure. It was difficult to reduce the size of the apparatus.

また、一般的な圧力容器は、高圧ガス保安法や労働安全衛生法等で規定されているように静的設計される。しかし、高圧処理装置の圧力容器は、１００ＭＰａ以上という極めて高い圧力を、多い場合には、年間数万回以上繰り返し受ける装置もあるため、疲労強度を基準とした設計が要求され、例えば、高圧円筒容器の場合であれば、９９．９９％以上という１００％に近い数値の非破壊確率を有する設計疲労曲線に従って設計されるのが一般的である。 Moreover, a general pressure vessel is statically designed as prescribed by the High Pressure Gas Safety Law, the Industrial Safety and Health Law, or the like. However, the pressure vessel of the high-pressure processing apparatus is a device that repeatedly receives extremely high pressure of 100 MPa or more, and in many cases, repeatedly receives tens of thousands of times per year. In the case of a container, the container is generally designed according to a design fatigue curve having a non-destructive probability of a value close to 100% of 99.99% or more.

しかしながら、非破壊確率が１００％でない以上、圧力容器が破損するケースは想定しなくてはならない。 However, as long as the non-destructive probability is not 100%, a case where the pressure vessel is damaged must be assumed.

圧力容器が破損する場合、超高圧状態の圧力容器内に充填されている圧力媒体が一気に解放されることで破損した圧力容器や蓋体を周囲に勢いよく飛散させ非常に危険な状態となることが容易に予想できる。そのため、圧力容器が破損した際に圧力容器や蓋体が周囲に飛散しない対策を講ずるための装置設計が必要とされており、上術した従来の高圧処理装置においても、例外ではなく、耐圧性は優れているものの、万が一、圧力容器が破損した場合を考慮し、スチール製の板で装置を囲うヨークフレームを採用した装置設計されたものが多く提供されている。 When a pressure vessel breaks, the pressure medium filled in the ultra-high pressure vessel is released at a stretch, causing the damaged pressure vessel and lid to scatter vigorously and become extremely dangerous. Can be easily predicted. Therefore, it is necessary to design a device to take measures to prevent the pressure vessel and lid from scattering around when the pressure vessel is damaged. However, in the unlikely event that the pressure vessel breaks, many devices designed using a yoke frame that surrounds the device with a steel plate are provided.

しかし、このヨークフレームタイプは、箱状に形成して装置全体を覆うように構成されるため、装置全体が一層大型化してしまい、更に、装置とフレームとの間に大きな空間が生じてしまうため、勢いよく飛散した圧力容器や蓋体が加速し、フレームを突き破ってしまう可能性があり、十分な安全対策が取られているとは言えないのが現状である。 However, since this yoke frame type is formed in a box shape and is configured to cover the entire apparatus, the entire apparatus is further increased in size, and further, a large space is generated between the apparatus and the frame. However, there is a possibility that the pressure vessel and the cover body scattered vigorously will accelerate and break through the frame, and it cannot be said that sufficient safety measures have been taken.

そこで、本発明は、従来の問題点を解決し、装置を小型化すると共に安価に製造することができ、万が一、圧力容器が破裂するような事故が発生した場合でも、圧力容器や蓋体の破片が周囲に飛散することなく、安全な状態が保てる十分な安全対策が成された実用性に優れた高圧処理装置を提供することを目的とする。 Therefore, the present invention solves the conventional problems and can be manufactured at a low cost while reducing the size of the apparatus. Even if an accident such as a rupture of the pressure vessel occurs, the pressure vessel and the lid An object of the present invention is to provide a high-pressure processing apparatus excellent in practicality in which sufficient safety measures have been taken so that fragments can be kept safe without being scattered around.

添付図面を参照して本発明の要旨を説明する。 The gist of the present invention will be described with reference to the accompanying drawings.

取り出し開口部１を開閉する蓋体２を有する圧力容器３と、この蓋体２が圧力容器３内の圧力上昇によって開蓋方向に押圧された際に該蓋体２の開蓋を抑止し閉蓋状態を保持する閉蓋保持部４と、この蓋体２に押圧された閉蓋保持部４を受け止める受け止め部５とを備え、前記圧力容器３に収容した被処理物13をこの圧力容器３内に導入した圧力媒体で加圧し高圧処理する高圧処理装置において、前記閉蓋保持部４に対して所定長の間隙６を設けて補助受け止め部７を設け、この補助受け止め部７は、高圧処理時に前記受け止め部５が破損した際、前記閉蓋保持部４を受け止めるように構成したことを特徴とする高圧処理装置に係るものである。 A pressure vessel 3 having a lid 2 that opens and closes the take-out opening 1 and when the lid 2 is pressed in the opening direction due to a pressure increase in the pressure vessel 3, the lid 2 is prevented from opening and closed. A closed lid holding portion 4 for holding the lid state and a receiving portion 5 for receiving the closed lid holding portion 4 pressed by the lid body 2, and the workpiece 13 accommodated in the pressure vessel 3 is placed in the pressure vessel 3. In a high-pressure processing apparatus that pressurizes with a pressure medium introduced into the inside and performs high-pressure processing, an auxiliary receiving portion 7 is provided by providing a gap 6 having a predetermined length with respect to the closed lid holding portion 4. The present invention relates to a high-pressure processing apparatus configured to receive the closing lid holding portion 4 when the receiving portion 5 is sometimes damaged.

また、前記閉蓋保持部４を閂状に形成し、筒状に形成した前記圧力容器３の周面にこの閂状に形成した閉蓋保持部４を貫通配設し得る貫通孔８を設け、この貫通孔８に挿入配設した前記閉蓋保持部４が前記蓋体２に押圧された際に当接する前記圧力容器３の孔形成部を前記受け止め部５とし、前記貫通孔８に前記閉蓋保持部４を挿入し前記圧力容器３に貫通配設した際に、前記閉蓋保持部４が閉蓋状態の前記蓋体２の直上に配設される、若しくは閉蓋状態の前記蓋体２に貫通配設されるように構成して、前記蓋体２が前記圧力容器３内の圧力上昇によって開蓋方向に押圧された際に、前記受け止め部５としての孔形成部に受け止められた前記閉蓋保持部４が前記蓋体２の開蓋を抑止して前記蓋体２の閉蓋状態を保持するように構成したことを特徴とする請求項１記載の高圧処理装置に係るものである。 In addition, the lid holding portion 4 is formed in a bowl shape, and a through hole 8 is provided on the peripheral surface of the pressure vessel 3 formed in a cylindrical shape so as to allow the lid closure holder portion 4 formed in the bowl shape to pass therethrough. The hole forming portion of the pressure vessel 3 that contacts when the lid holding portion 4 inserted and disposed in the through hole 8 is pressed against the lid body 2 is the receiving portion 5, and the through hole 8 has the When the closed lid holding portion 4 is inserted and disposed through the pressure vessel 3, the closed lid holding portion 4 is disposed immediately above the lid body 2 in the closed state, or the lid in the closed state. When the lid 2 is pressed in the opening direction by the pressure increase in the pressure vessel 3, it is received by the hole forming portion as the receiving portion 5. In addition, the lid holding unit 4 is configured to prevent the lid 2 from opening and hold the lid 2 in the closed state. Those of the high-pressure processing apparatus according to claim 1 wherein symptoms.

また、前記閉蓋保持部４と前記補助受け止め部７との間に設けられる前記間隙６は、できるだけ近接された間隙であって、且つ、前記圧力容器３内が高圧状態となり前記蓋体２が前記閉蓋保持部４を押圧してもこの閉蓋保持部４が前記補助受け止め部７に当接しない距離に設定したことを特徴とする請求項１，２のいずれか１項に記載の高圧処理装置に係るものである。 Further, the gap 6 provided between the lid holding part 4 and the auxiliary receiving part 7 is a gap as close as possible, and the inside of the pressure vessel 3 is in a high pressure state, and the lid 2 is The high pressure according to any one of claims 1 and 2, wherein the lid holding part 4 is set to a distance at which the lid holding part 4 does not contact the auxiliary receiving part 7 even if the lid holding part 4 is pressed. This relates to a processing apparatus.

また、前記閉蓋保持部４と前記補助受け止め部７とは金属材料からなり、前記補助受け止め部７は、前記閉蓋保持部４よりも軟らかい材質の金属材料からなることを特徴とする請求項１〜３のいずれか１項に記載の高圧処理装置に係るものである。 The lid holding part 4 and the auxiliary receiving part 7 are made of a metal material, and the auxiliary receiving part 7 is made of a metal material that is softer than the lid holding part 4. It concerns on the high-pressure processing apparatus of any one of 1-3.

また、前記圧力容器３を囲繞する外容器９を備え、この外容器９に前記閉蓋保持部４を貫通配設し得る前記圧力容器３に設けた貫通孔７と連通する外容器側貫通孔10を設け、この外容器側貫通孔10を設けた前記外容器９の孔形成部を前記補助受け止め部７とし、前記外容器側貫通孔10は、前記貫通孔７の内径よりも径大で、且つ、この外容器側貫通孔10に挿入配設した前記閉蓋保持部４と該外容器側貫通孔10の周縁10ａとの間に前記隙間６が設けられる内径に設定したことを特徴とする請求項１〜４のいずれか１項に記載の高圧処理装置に係るものである。 Further, an outer container 9 surrounding the pressure container 3 is provided, and an outer container side through-hole communicating with the through-hole 7 provided in the pressure container 3 through which the outer lid 9 can be disposed to penetrate the closed lid holding portion 4. 10, the hole forming part of the outer container 9 provided with the outer container side through hole 10 is the auxiliary receiving part 7, and the outer container side through hole 10 is larger in diameter than the inner diameter of the through hole 7. In addition, the inner diameter is set such that the gap 6 is provided between the closed lid holding portion 4 inserted and disposed in the outer container side through hole 10 and the peripheral edge 10a of the outer container side through hole 10. It concerns on the high-pressure processing apparatus of any one of Claims 1-4.

また、前記受け止め部５が破損した際に、この受け止め部５を受け止める第二補助受け止め部11を備え、この第二補助受け止め部11は、前記受け止め部５の上部側端面５ａと所定の間隙12を設けて、この受け止め部５上に配設した構成としたことを特徴とする請求項１〜５のいずれか１項に記載の高圧処理装置に係るものである。 Further, a second auxiliary receiving portion 11 is provided for receiving the receiving portion 5 when the receiving portion 5 is damaged. The second auxiliary receiving portion 11 is separated from the upper end surface 5a of the receiving portion 5 by a predetermined gap 12. The high pressure processing apparatus according to any one of claims 1 to 5, wherein a structure is provided on the receiving portion 5.

本発明は上述のように構成したから、万が一、閉蓋保持部を受け止めている受け止め部が高圧に耐え切れずに破損しても、補助受け止め部が閉蓋保持部を受け止めるので、圧力容器内の超高圧状態の圧力媒体に押されても、蓋体やこの蓋体を押さえている閉蓋保持部が勢いよく飛散することなくその場に留まるので、これらが飛散し周囲に危険が及ぶことがない安全性の高い高圧処理装置となる。 Since the present invention is configured as described above, even if the receiving part receiving the closed lid holding part is damaged without being able to withstand high pressure, the auxiliary receiving part receives the closed lid holding part. Even when pressed by a pressure medium in an ultra-high pressure state, the lid and the lid holding part that holds the lid stay in place without violently splashing. This is a high-safety high-pressure processing device that does not have any.

即ち、常態においては、閉蓋保持部は受け止め部のみで受け止められていて、補助受け止め部は、閉蓋保持部に対して所定長の間隙を設けて配設したことにより、常態においては、閉蓋保持部と接することがないので、蓋体に押圧された閉蓋保持部からの負荷を受けることがない。よって、受け止め部が繰り返し受ける大きな負荷によって疲労劣化しても、この補助受け止め部は疲労劣化することなく、万が一の場合に備えて、十分な設計強度を保つことができるので、勢いよく押し出された閉蓋保持部をしっかりと受け止めることができ、また、この閉蓋保持部を受け止めた際も補助受け止め部自体が破損することなく、蓋体や閉蓋保持部の周囲への飛散を防止することができる極めて安全性に優れた高圧処理装置となる。 That is, in the normal state, the closed lid holding portion is received only by the receiving portion, and the auxiliary receiving portion is provided with a predetermined length gap with respect to the closed lid holding portion, so that the closed lid holding portion is normally closed. Since it does not contact the lid holding part, it does not receive a load from the closed lid holding part pressed by the lid. Therefore, even if the receiving part repeatedly deteriorates due to a large load, the auxiliary receiving part is not fatigued and can be kept in a sufficient design strength in case of emergency, so it was pushed out vigorously. The lid holding part can be received firmly, and even when this lid holding part is received, the auxiliary receiving part itself is not damaged, and it is prevented from scattering around the lid and the lid holding part. Therefore, it is a high-pressure processing apparatus with extremely high safety.

また、請求項２記載の発明においては、蓋体を極めて簡易な構成とすることができ、また、この蓋体の閉蓋状態を保持する閉蓋保持部を閂に構成したので、従来のような複雑な構造を必要とせず、閉蓋保持部を極めて容易に設計実現が可能となり、よって、製造コストを低減でき安価な高圧処理装置を提供できると共に、従来に比してより容易に小型化を実現することができる実用性に優れた高圧処理装置となる。 Further, in the invention described in claim 2, since the lid can be made very simple, and the lid holding part for holding the lid closed state is constructed in the bag, so that It is possible to design and realize the lid holding part very easily without requiring a complicated structure, thus reducing the manufacturing cost and providing an inexpensive high-pressure treatment device, and more easily downsizing compared to the past. Thus, the high-pressure processing apparatus with excellent practicality can be realized.

また、請求項３記載の発明においては、間隙を極力短い距離に設定することで閉蓋保持部が蓋体に押され加速する距離が短くなり、閉蓋保持部は加速する間もなく補助受け止め部に受け止められるので、加速し速度が増すことによる運動エネルギーの増加が抑えられ、より小さな衝撃力で閉蓋保持部を受け止めるので、補助受け止め部の負荷を軽減でき、閉蓋保持部によって補助受け止め部が破損し周囲に飛散することが抑止される、より安全性の高い高圧処理装置となる。 Further, in the invention according to claim 3, by setting the gap as short as possible, the distance that the lid holding portion is pushed and accelerated by the lid body is shortened, and the lid holding portion becomes the auxiliary receiving portion soon before accelerating. Because it is received, the increase in kinetic energy due to acceleration and increased speed is suppressed, and the lid holding part is received with a smaller impact force, so the load on the auxiliary receiving part can be reduced, and the auxiliary receiving part is It becomes a safer high-pressure processing apparatus that is prevented from being broken and scattered around.

また、請求項４記載の発明においては、衝撃を受け止めた補助受け止め部が延性変形により衝撃を吸収し、閉蓋保持部の周囲への飛散や、補助受け止め部自体の破損による飛散を防止し、より安全性の高い高圧処理装置となる。 Further, in the invention according to claim 4, the auxiliary receiving part that has received the impact absorbs the impact by ductile deformation, prevents scattering to the periphery of the lid holding part, and scattering due to breakage of the auxiliary receiving part itself, It becomes a high-pressure processing device with higher safety.

また、請求項５記載の発明においては、補助受け止め部を極めて容易に設計実現が可能となり、更に、圧力容器の周面側もカバーされるので、より一層、安全性が向上する。 Further, in the invention described in claim 5, the auxiliary receiving portion can be designed very easily, and the peripheral surface side of the pressure vessel is also covered, so that the safety is further improved.

また、請求項６記載の発明においては、閉蓋保持部に押圧された補助受け止め部が飛散することを防止し、より一層安全性の高い高圧処理装置となる。 Further, in the invention described in claim 6, the auxiliary receiving part pressed by the lid holding part is prevented from being scattered, and the high-pressure processing apparatus with higher safety is obtained.

本実施例を示す斜視図である。It is a perspective view which shows a present Example. 本実施例の高圧処理部を示す正断面図である。It is a front sectional view showing a high pressure processing part of this example. 本実施例の高圧処理部を示す側断面図である。It is a sectional side view which shows the high-pressure process part of a present Example. 本実施例の高圧処理部の上部側の構造を示す分解斜視図である。It is a disassembled perspective view which shows the structure of the upper part side of the high voltage | pressure processing part of a present Example. 本実施例の高圧処理部の下部側の構造を示す分解斜視図である。It is a disassembled perspective view which shows the structure of the lower part side of the high voltage | pressure processing part of a present Example. 本実施例の受け止め部が破損する状態を示す説明側断面図である。It is explanatory side sectional drawing which shows the state which the receiving part of a present Example breaks. 本実施例の受け止め部が破損した状態を示す説明側断面図である。It is explanatory side sectional drawing which shows the state where the receiving part of a present Example was damaged. 本実施例の受け止め部が破損した状態を示す説明正断面図である。It is explanatory front sectional drawing which shows the state which the receiving part of a present Example damaged.

好適と考える本発明の実施形態を、図面に基づいて本発明の作用を示して簡単に説明する。 An embodiment of the present invention which is considered to be suitable will be briefly described with reference to the drawings showing the operation of the present invention.

本発明は、圧力容器３にセットした被処理物13を高圧処理するために、圧力容器３内に導入した圧力媒体をピストンなどの加圧手段で加圧する、若しくは、外部に配設した加圧装置部14で加圧した圧力媒体を圧力容器３内に圧送して、圧力容器３内の圧力を１００ＭＰａ以上の高圧状態にすることで、この圧力容器３の取り出し開口部１を閉蓋している蓋体２が圧力容器３内に導入した圧力媒体によって開蓋方向に押圧され、この蓋体２が押圧されることで、この蓋体２を押さえている閉蓋保持部４も同様に大きな力で押圧され、同時にこの閉蓋保持部４を受け止めている受け止め部５にも同様の大きな力が加えられることとなり、このような大きな力が繰り返し加えられる受け止め部５は、徐々に疲労劣化し、やがて通常使用時の圧力に耐え得る強度がなくなり、塑性崩壊、或いは、せん断破壊する可能性が高いが、仮に、受け止め部５が破損し閉蓋保持部４を受け止められなくなっても、補助受け止め部７が閉蓋保持部４を受け止めるので、蓋体２や閉蓋保持部４は、周囲への飛散することなくその場に留まることとなり、よって、蓋体２や閉蓋保持部４が飛散し人に当たってけがをさせる可能性や周囲のものを破損させる可能性を可及的に低減し、従来に比して、より一層高い安全性を備えた実用性に優れた高圧処理装置となる。 In the present invention, the pressure medium introduced into the pressure vessel 3 is pressurized with a pressurizing means such as a piston, or the pressurization disposed outside in order to subject the workpiece 13 set in the pressure vessel 3 to high pressure processing. The pressure medium pressurized by the apparatus unit 14 is pumped into the pressure vessel 3 to bring the pressure inside the pressure vessel 3 to a high pressure state of 100 MPa or more, thereby closing the take-out opening 1 of the pressure vessel 3. The lid body 2 is pressed in the opening direction by the pressure medium introduced into the pressure vessel 3, and the lid body 2 is pressed, so that the lid holding portion 4 holding the lid body 2 is similarly large. A similar large force is applied to the receiving portion 5 that is pressed by force and simultaneously receives the closed lid holding portion 4, and the receiving portion 5 to which such a large force is repeatedly applied gradually deteriorates in fatigue. Over time, withstand the pressure during normal use The strength to obtain is lost, and there is a high possibility of plastic collapse or shear fracture. However, even if the receiving part 5 is damaged and cannot receive the closing cover holding part 4, the auxiliary receiving part 7 can be connected to the closing cover holding part 4. The lid 2 and the lid holding part 4 stay on the spot without scattering to the surroundings. Therefore, there is a possibility that the lid 2 and the lid holding part 4 may scatter and hit people. The possibility of damaging surrounding objects is reduced as much as possible, and a high-pressure processing apparatus with higher safety and higher practicality than conventional ones can be obtained.

即ち、本発明は、閉蓋保持部４を受け止める手段として受け止め部５と補助受け止め部７とを設け、常態においては、この受け止め部５と補助受け止め部７との両方で閉蓋保持部４を受け止めるのではなく、受け止め部５のみで閉蓋保持部４を受け止めるように構成し、補助受け止め部７は、閉蓋保持部４に対して間隙６を設けて配設した構成としたので、常態においては、閉蓋保持部４と当接しないので、閉蓋保持部４から押圧されることなく、よって、全く負荷を受けず、疲労劣化することがないように構成している。 That is, according to the present invention, the receiving portion 5 and the auxiliary receiving portion 7 are provided as means for receiving the closing lid holding portion 4. In the normal state, the closing lid holding portion 4 is formed by both the receiving portion 5 and the auxiliary receiving portion 7. Instead of receiving, it is configured to receive the closing lid holding portion 4 only by the receiving portion 5, and the auxiliary receiving portion 7 is provided with a gap 6 with respect to the closing lid holding portion 4. Is not pressed against the closed lid holding portion 4 and thus is not pressed from the closed lid holding portion 4, and thus is not subjected to any load and does not deteriorate in fatigue.

そして、万が一、受け止め部５が破損し、この受け止め部５が閉蓋保持部４を受け止めることができなくなった状況において、初めて、閉蓋保持部４が間隙６分だけ移動し補助受け止め部７に当接し、この補助受け止め部７によって受け止められることとなり、この補助受け止め部７は、常態において、疲労劣化していないので、十分な強度を持って閉蓋保持部４を受け止めることができるので、この補助受け止め部７は閉蓋保持部４を受け止めた際に破損することなく、よって、蓋体２や閉蓋保持部４が周囲に飛散することがないので、破損時の危険性が可及的に低減され、より安全性の高い高圧処理装置となる。 In the situation where the receiving part 5 is damaged and cannot be received by the closing part holding part 4, the closing part holding part 4 is moved by the gap 6 for the first time to the auxiliary receiving part 7. Since the auxiliary receiving portion 7 is not fatigued under normal conditions, the auxiliary holding portion 7 can receive the closed lid holding portion 4 with sufficient strength. The auxiliary receiving part 7 is not damaged when the closed lid holding part 4 is received. Therefore, the lid body 2 and the closed lid holding part 4 do not scatter to the surroundings, so the risk of damage is as much as possible. Therefore, it becomes a high-pressure processing apparatus with higher safety.

本発明の具体的な実施例について図面に基づいて説明する。 Specific embodiments of the present invention will be described with reference to the drawings.

本実施例は、図１に示すように、圧力媒体を貯留する圧媒タンク部15と、この圧媒タンク部15内の圧力媒体を圧力容器３内に圧送するための加圧装置部14と、この加圧装置部14から圧送される圧力媒体を導入し被処理物13を高圧処理する高圧処理部16とで構成し、これらをワゴンタイプの移動式フレーム17内に収納配設したコンパクトタイプの間接加圧式（増圧ポンプ式）の高圧処理装置である。 In this embodiment, as shown in FIG. 1, a pressure medium tank portion 15 for storing a pressure medium, and a pressurizing device portion 14 for pressure-feeding the pressure medium in the pressure medium tank portion 15 into the pressure vessel 3, A compact type in which a pressure medium fed by pressure from the pressurizing unit 14 is introduced and a high-pressure processing unit 16 that performs high-pressure processing on the workpiece 13 is housed and disposed in a wagon-type movable frame 17. This is an indirect pressurization type (intensification pump type) high-pressure treatment apparatus.

また、本実施例の高圧処理部16は、図２，図３に示すように、取り出し開口部１を開閉する蓋体２を有する圧力容器３と、この蓋体２が圧力容器３内の圧力上昇によって開蓋方向に押圧された際に該蓋体２の開蓋を抑止し閉蓋状態を保持する閉蓋保持部４と、この蓋体２に押圧された閉蓋保持部４を受け止める受け止め部５とを備え、閉蓋保持部４に対して所定長の間隙６を設けて補助受け止め部７を設け、この補助受け止め部７を高圧処理時に前記受け止め部５が破損した際、前記閉蓋保持部４を受け止めるように構成している。 In addition, as shown in FIGS. 2 and 3, the high-pressure processing unit 16 of this embodiment includes a pressure vessel 3 having a lid 2 that opens and closes the take-out opening 1, and the lid 2 is a pressure inside the pressure vessel 3. When the lid 2 is pressed in the opening direction by being lifted, the lid 2 is prevented from being opened and the closed lid holding portion 4 that holds the lid is received, and the lid holding portion 4 that is pressed by the lid 2 is received. And an auxiliary receiving portion 7 provided with a gap 6 of a predetermined length with respect to the closing lid holding portion 4. When the receiving portion 5 is damaged during high pressure processing, the closing lid 7 is provided. The holding unit 4 is configured to be received.

この高圧処理部16を構成する各部について、以下に具体的に説明する。 Each part constituting the high-pressure processing unit 16 will be specifically described below.

圧力容器３は、上下方向に取り出し開口部１を設けた高圧に耐え得る金属製の円筒容器に構成し、この円筒容器に構成した圧力容器３内に被処理物13を高圧処理する処理室18を設けた構成とし、この処理室18は、取り出し開口部１の内径よりも径小な内径寸法に設定し、上下方向に設けたられた取り出し開口部１に蓋体２を着脱自在に設けて密閉開放自在な構成としている。 The pressure vessel 3 is configured as a metal cylindrical vessel capable of withstanding high pressure, which is provided with an opening 1 in the vertical direction, and a processing chamber 18 for high-pressure treatment of the workpiece 13 in the pressure vessel 3 constructed in this cylindrical vessel. The processing chamber 18 is set to have an inner diameter smaller than the inner diameter of the take-out opening 1, and a lid 2 is detachably provided on the take-out opening 1 provided in the vertical direction. The structure can be hermetically opened.

また、圧力容器３の内周面には段差部19を設けた構成とし、この段差部19は、取り出し開口部１と処理室18との境界に設け、この段差部19に後述する蓋体２が嵌合係止し、処理室18を密閉状態にする構成としている。 Further, a step portion 19 is provided on the inner peripheral surface of the pressure vessel 3, and the step portion 19 is provided at the boundary between the take-out opening 1 and the processing chamber 18, and a lid 2 described later is provided on the step portion 19. Are engaged and locked, and the processing chamber 18 is hermetically sealed.

また、圧力容器３の周面には、後述する閉蓋保持部４を貫通配設し得る貫通孔８を設けており、この貫通孔８は、閉蓋保持部４と嵌合する形状、即ち、閉蓋保持部４の断面形状と同形状に形成しており、具体的には、本実施例においては、貫通孔８の形状を方形状に形成した構成としている。 Further, a through-hole 8 through which a closing lid holding portion 4 to be described later can be provided is provided on the peripheral surface of the pressure vessel 3, and the through-hole 8 has a shape that fits with the closing lid holding portion 4, that is, The lid holding part 4 is formed in the same shape as the cross-sectional shape. Specifically, in the present embodiment, the through hole 8 is formed in a square shape.

また、本実施例では、貫通孔８を圧力容器３の上部側及び下部側に夫々四つずつ設けており、この貫通孔８は、閉蓋保持部４を貫通配設した際、この閉蓋保持部４が圧力容器３の中心を通らない位置に配設した構成としている。具体的には、圧力容器３の左右両側に一対の貫通孔８を夫々一直線上に配設した構成としている。 Further, in this embodiment, four through holes 8 are provided on each of the upper side and the lower side of the pressure vessel 3, and these through holes 8 are closed when the closed lid holding portion 4 is disposed. The holding unit 4 is arranged at a position that does not pass through the center of the pressure vessel 3. Specifically, a pair of through-holes 8 are arranged on a straight line on both the left and right sides of the pressure vessel 3.

即ち、本実施例は、閉蓋保持部４を圧力容器３の周面に設けた貫通孔８に貫通配設する構成としたので、この閉蓋保持部４は貫通孔８と嵌合し、蓋体２から押圧された際に、この貫通孔８の周縁部に当接して受け止められることとなり、よって、本実施例では、この貫通孔８を設けた圧力容器３の周面の孔形成部が、蓋体２に押圧された閉蓋保持部４を受け止める受け止め部５となる。 That is, since the present embodiment is configured such that the closing lid holding portion 4 is disposed through the through hole 8 provided in the peripheral surface of the pressure vessel 3, the closing lid holding portion 4 is fitted to the through hole 8, When pressed from the lid body 2, it comes into contact with and is received by the peripheral edge portion of the through hole 8. Therefore, in this embodiment, the hole forming portion on the peripheral surface of the pressure vessel 3 provided with the through hole 8. Becomes the receiving portion 5 that receives the closed lid holding portion 4 pressed by the lid body 2.

より具体的には、上部蓋体２ａの閉蓋状態を保持する閉蓋保持部４を受け止める受け止め部５は、この閉蓋保持部４が貫通配設される貫通孔８の上縁部、より詳しくは、圧力容器３の上部側貫通孔８の上縁部から上部側の周面部が受け止め部５となり、また、下部蓋体２ｂの閉蓋状態を保持する閉蓋保持部４を受け止める受け止め部５は、この閉蓋保持部４が貫通配設される貫通孔８の下縁部、より詳しくは、圧力容器３の下部側貫通孔８の下縁部から下部側の圧力容器３周面部が受け止め部５となる。 More specifically, the receiving portion 5 that receives the closed lid holding portion 4 that holds the closed state of the upper lid body 2a is provided at the upper edge portion of the through hole 8 through which the closed lid holding portion 4 is disposed. Specifically, the upper peripheral portion from the upper edge of the upper side through-hole 8 of the pressure vessel 3 serves as the receiving portion 5, and the receiving portion that receives the closed lid holding portion 4 that holds the closed state of the lower lid 2b. Reference numeral 5 denotes a lower edge portion of the through hole 8 through which the closed lid holding portion 4 is disposed, more specifically, a lower pressure vessel 3 peripheral surface portion from a lower edge portion of the lower side through hole 8 of the pressure vessel 3 to the lower side. It becomes the receiving part 5.

また、この圧力容器３の上下両側に設けた取り出し開口部１を閉蓋する蓋体２は、圧力容器３と同様に高圧に耐え得る金属製の円盤体とし、具体的には、蓋体上部を取り出し開口部１と同径、蓋体下部は処理室18の内径と同径にし、上述した圧力容器３の内周面に設けた取り出し開口部１と処理室18との境界の段差部19と嵌合し処理室18を閉蓋する形状に構成している。 Moreover, the lid body 2 that closes the extraction openings 1 provided on both the upper and lower sides of the pressure vessel 3 is a metal disc body that can withstand high pressure, like the pressure vessel 3. Has the same diameter as the take-out opening 1, the lower part of the lid body has the same diameter as the inner diameter of the processing chamber 18, and the step portion 19 at the boundary between the take-out opening 1 and the processing chamber 18 provided on the inner peripheral surface of the pressure vessel 3 described above. And the processing chamber 18 is closed.

より具体的に説明すると、圧力容器３の上部側の取り出し開口部１を閉蓋する上部蓋体２ａは、処理室18内の残留空気を排出する残留空気排出機構20を設けると共に、上面にハンドル部21を突設した構成としている。 More specifically, the upper lid 2a for closing the extraction opening 1 on the upper side of the pressure vessel 3 is provided with a residual air discharge mechanism 20 for discharging residual air in the processing chamber 18, and a handle on the upper surface. The portion 21 is configured to protrude.

また、圧力容器３の下部側の取り出し開口部１を閉蓋する下部蓋体２ｂは、加圧装置部14により圧送された圧力媒体を圧力容器３内の処理室18に導入する圧媒導入部22を設けた構成としている。 The lower lid 2b that closes the take-out opening 1 on the lower side of the pressure vessel 3 introduces the pressure medium introduced by the pressure device 14 into the processing chamber 18 in the pressure vessel 3. 22 is provided.

また、蓋体２の下部側には、処理室18を密閉状態にするためのパッキング23と、このパッキング23の脱落を防止するパッキング押え24を設けた構成としている。 Further, a packing 23 for sealing the processing chamber 18 and a packing presser 24 for preventing the packing 23 from dropping off are provided on the lower side of the lid 2.

また、この蓋体２が圧力容器３内の圧力上昇によって開蓋方向に押圧された際に、この蓋体２の開蓋を抑止し閉蓋状態を保持する閉蓋保持部４は、断面方形状の角状棒状体に形成した構成としている。 Further, when the lid 2 is pressed in the direction of opening due to the pressure rise in the pressure vessel 3, the lid holding portion 4 that prevents the lid 2 from being opened and holds the closed state is The structure is formed in a rectangular bar-shaped body.

即ち、本実施例は、蓋体２の閉蓋状態を保持するための構造として閂構造を採用した構成としており、角棒状の閉蓋保持部４が閂、圧力容器３の周面に設けた貫通孔８が閂鎹に相当する構成とし、閉蓋保持部４を貫通孔８に挿脱自在に設けた構成としている。 In other words, the present embodiment has a configuration in which a gutter structure is adopted as a structure for holding the closed state of the lid body 2, and a square bar-like capping cover holding portion 4 is provided on the circumferential surface of the pressure vessel 3. The through hole 8 is configured to correspond to a ridge, and the closed lid holding portion 4 is configured to be removably inserted into the through hole 8.

本実施例の閂構造は、具体的には、１つの蓋体２に対して二本の閂状の閉蓋保持部４を配する構成としており、具体的には、二本の閉蓋保持部４が蓋体２の左右端部に配置する構成とし、蓋体２の中心部がこの閉蓋保持部４で塞がれない開放状態となるように構成している。 Specifically, the bag structure of the present embodiment has a configuration in which two hook-shaped closing lid holding portions 4 are arranged for one lid body 2. The portion 4 is arranged at the left and right end portions of the lid body 2, and the center portion of the lid body 2 is configured to be in an open state that is not blocked by the lid holding portion 4.

また更に、閉蓋保持部４を貫通孔８に貫通配設した際、この閉蓋保持部４が圧力容器３の取り出し開口部１を閉蓋している蓋体２の直上に配設されるように構成している。 Furthermore, when the closed lid holding portion 4 is disposed through the through hole 8, the closed lid holding portion 4 is disposed immediately above the lid body 2 that closes the outlet opening 1 of the pressure vessel 3. It is configured as follows.

尚、前記蓋体２の直上とは、蓋体２の上面と殆ど間隙のない近接状態、若しくは当接している状態を意味する。 The term “directly above the lid body 2” means a state in which the top surface of the lid body 2 is in close proximity with or almost in contact with the top surface.

また、本実施例では、上部蓋体２ａを閉蓋状態に保持する閉蓋保持部４に移動シリンダー機構25を設け、この移動シリンダー機構25の往復運動によって閉蓋保持部４を水平方向に進退自在に設けた構成としている。 Further, in this embodiment, the moving cylinder mechanism 25 is provided in the closing lid holding portion 4 that holds the upper lid 2a in the closed state, and the closing lid holding portion 4 is moved back and forth in the horizontal direction by the reciprocating motion of the moving cylinder mechanism 25. The structure is provided freely.

このように、二本の閉蓋保持部４で閉蓋状態を保持することでバランスよく蓋体２を押さえることができ、より高い押圧力に耐え得る構造となり、更に、蓋体２の中心部が開放状態となることで、上述した残留空気排出機構20やハンドル部21などを配設するスペースを容易に設けることができることとなり、また、例えば、この中心部に窓部を設けることもでき、この窓部から圧力容器３内の被処理物13の処理状態を確認することもできるなど、一層実用性に優れた高圧処理装置となる。 In this way, the lid 2 can be held in a well-balanced state by holding the closed state with the two lid-holding portions 4, and can withstand a higher pressing force. Since it is in an open state, it is possible to easily provide a space for disposing the above-described residual air discharge mechanism 20, the handle portion 21, etc., and for example, it is possible to provide a window portion at the center portion, The processing state of the workpiece 13 in the pressure vessel 3 can be confirmed from this window portion, so that the high-pressure processing apparatus is further excellent in practicality.

尚、本実施例では、閉蓋保持部４を上述のように一本の角棒状に形成した構成とし、これを二本一組にして蓋体２を押さえる構成としているが、閉蓋保持部４の構成は上記に限らず、例えば、Ｕ字状に構成しても良く、本実施例の作用効果を発揮する構成であれば適宜採用するものとする。 In this embodiment, the lid holding part 4 is formed as a single square bar as described above, and the lid body 2 is pressed together as a pair. The configuration of 4 is not limited to the above. For example, the configuration may be U-shaped, and any configuration that exhibits the operational effects of the present embodiment is adopted as appropriate.

また、本実施例は、常態においては、上述したように、圧力容器３の内部圧力に開蓋方向に押圧される蓋体２を閉蓋保持部４が受け止め、この蓋体２を受け止めることで圧力容器３の内部圧力による押圧力を受ける閉蓋保持部４を受け止め部５が受け止めることで蓋体２の閉蓋状態が保持される構成としているが、この受け止め部５、即ち、圧力容器３の貫通孔８を設けた孔形成部が１００ＭＰａ以上の極めて高い押圧力を繰り返し受けることによって金属疲労を起こして強度が低下し、この極めて高い押圧力に耐え得るがことができなくなって破損した場合や、設計強度以上の想定外の押圧力が加わり、この想定外の押圧力に耐え切れず受け止め部５が破損した場合に、この受け止め部５に代わって閉蓋保持部４を受け止める補助受け止め部７を備えた構成とし、本実施例においては、この補助受け止め部７を、圧力容器３の外周面に囲繞するように配置した外容器９に設けた構成としている。 Further, in the present embodiment, as described above, the lid holding portion 4 receives the lid 2 that is pressed in the opening direction by the internal pressure of the pressure vessel 3 and receives the lid 2 in the normal state. The closed lid holding portion 4 that receives the pressing force due to the internal pressure of the pressure vessel 3 is received by the receiving portion 5 so that the closed state of the lid 2 is held. When the hole forming portion provided with the through-hole 8 is repeatedly subjected to extremely high pressing force of 100 MPa or more to cause metal fatigue, the strength is reduced, and it is not possible to withstand this extremely high pressing force, but it becomes impossible to break. In addition, when an unexpected pressing force higher than the design strength is applied and the receiving portion 5 is damaged without being able to withstand the unexpected pressing force, an auxiliary receiving receiving the closing lid holding portion 4 in place of the receiving portion 5 A structure having a seven, in the present embodiment, the auxiliary receiving portion 7 has a configuration provided in the outer container 9 which is arranged so as to surround the outer circumferential surface of the pressure vessel 3.

また、この補助受け止め部７は、閉蓋保持部４に対して所定長の間隙６を設けて配設した構成とし、この間隙６は、閉蓋保持部４と補助受け止め部７とができるだけ近接された間隙であって、且つ、圧力容器３内が高圧状態となり蓋体２が閉蓋保持部４を押圧してもこの閉蓋保持部４が補助受け止め部７に当接しない距離に設定している。 Further, the auxiliary receiving part 7 has a configuration in which a gap 6 having a predetermined length is provided with respect to the closed lid holding part 4, and the closed lid holding part 4 and the auxiliary receiving part 7 are as close as possible to each other. The gap is set to a distance that prevents the closed lid holding portion 4 from coming into contact with the auxiliary receiving stopper 7 even when the pressure vessel 3 is in a high pressure state and the lid 2 presses the closed lid holding portion 4. ing.

更に説明すると、この補助受け止め部７は、圧力容器３内が高圧状態のときに必ず閉蓋保持部４には当接せずにこの閉蓋保持部４と補助受け止め部７とには間隙６が生じるように構成するものであり、また、常態から前記高圧状態となる場合に、内部からの押圧による閉蓋保持部４の移動や弾性変形によって閉蓋保持部４が補助受け止め部７に近づいてしまい間隙６が無くならないよう、この高圧状態での閉蓋保持部４の移動を考慮した上で常態でこの間隙６を設定している。 More specifically, the auxiliary receiving part 7 does not necessarily come into contact with the closed lid holding part 4 when the pressure vessel 3 is in a high pressure state, and there is a gap 6 between the closed lid holding part 4 and the auxiliary receiving part 7. Further, when the high pressure state is changed from the normal state, the lid holding portion 4 approaches the auxiliary receiving portion 7 due to the movement or elastic deformation of the lid holding portion 4 due to the pressure from the inside. In order to prevent the gap 6 from disappearing, the gap 6 is set in a normal state in consideration of the movement of the lid holding portion 4 in the high pressure state.

つまり、間隙６を小さくしたいが、この高圧状態では常態より間隙６が小さくなることを考慮して、常態では少し大きめに間隙６を設定している。 That is, the gap 6 is desired to be small, but the gap 6 is set slightly larger in the normal state in consideration of the fact that the gap 6 is smaller than the normal state in this high pressure state.

また、間隙６を短い距離に設定することで、万が一、閉蓋保持部４が破損した場合でも、閉蓋保持部４が蓋体２に押され加速する距離が短くなり、閉蓋保持部４は加速する間もなく補助受け止め部７に受け止められるので、加速し速度が増すことによる運動エネルギーの増加が抑えられ、補助受け止め部７は、より小さな衝撃力で閉蓋保持部４を受け止めるので、受け止め時の負荷を軽減でき、閉蓋保持部４によって補助受け止め部７が破損し周囲に飛散することが抑止される。 In addition, by setting the gap 6 to a short distance, even if the lid holding part 4 is broken, the distance that the lid holding part 4 is pushed and accelerated by the lid 2 is shortened, and the lid holding part 4 Is received by the auxiliary receiving portion 7 soon before acceleration, so that an increase in kinetic energy due to acceleration and increased speed is suppressed, and the auxiliary receiving portion 7 receives the closed lid holding portion 4 with a smaller impact force. And the auxiliary lid 7 is prevented from being damaged and scattered around the lid holding part 4.

つまり、この間隙６が広すぎると閉蓋保持部４が破損した際、この閉蓋保持部４が十分に加速して補助受け止め部７に衝突するまでに大きなエネルギーを持ち、この大きなエネルギーを持った閉蓋保持部４を補助受け止め部７が受け止められず、補助受け止め部７も破損し閉蓋保持部４も補助受け止め部７も飛散して周囲に危険を及ぼす可能性が生じてしまうので、このような観点から、隙間６は小さく設定することが望ましい。 That is, when the gap 6 is too wide, when the lid holding part 4 is damaged, the lid holding part 4 has a large energy until it sufficiently accelerates and collides with the auxiliary receiving part 7, and has this large energy. Since the auxiliary receiving part 7 is not received by the closed lid holding part 4, the auxiliary receiving part 7 is also damaged, and the closed lid holding part 4 and the auxiliary receiving part 7 may scatter and cause danger to the surroundings. From such a viewpoint, it is desirable to set the gap 6 small.

言い換えると、前記作用・効果が十分に発揮されるように閉蓋保持部４と補助受け止め部７とを近接する必要があり、十分に近づけてこの作用・効果が確実に発揮されるように構成する。しかし、前述のように常態において近づけすぎると使用時（高圧状態時）において間隙６が小さくなってしまい閉蓋保持部４と補助受け止め部７とが当接して補助受け止め部７にも負荷が掛かり劣化してしまう恐れがあり、万が一の場合に、閉蓋保持部４を受け止めることができなくなるので、前述したように高圧状態において閉蓋保持部４と補助受け止め部７とが当接しないようこの閉蓋保持部４と補助受け止め部７とを離す必要がある。 In other words, the lid holding part 4 and the auxiliary receiving part 7 need to be close to each other so that the functions and effects are sufficiently exhibited, and the functions and effects are surely exhibited sufficiently close to each other. To do. However, as described above, if it is too close in the normal state, the gap 6 becomes small during use (in a high pressure state), the closed lid holding portion 4 and the auxiliary receiving portion 7 come into contact with each other, and the auxiliary receiving portion 7 is also loaded. In the unlikely event that the lid holding part 4 cannot be received, the lid holding part 4 and the auxiliary receiving part 7 do not come into contact with each other in a high pressure state as described above. The lid holding part 4 and the auxiliary receiving part 7 need to be separated.

即ち、本実施例の間隙６をできるだけ近接させるという意味は、閉蓋保持部４が破損した場合の、この閉蓋保持部４を加速させないため、言い換えると、補助受け止め部７への衝撃をできるだけ抑えて補助受け止め部７の破損を防ぐために距離を小さく設定するが、高圧状態にした際に閉蓋保持部４が移動或いは弾性変形しても閉蓋保持部４が補助受け止め部７に当接しないだけの距離を有するということを意味する。 That is, the meaning that the gap 6 of the present embodiment is as close as possible means that the closed lid holding portion 4 is not accelerated when the closed lid holding portion 4 is damaged. In other words, the impact to the auxiliary receiving portion 7 is as small as possible. The distance is set small in order to suppress and prevent the auxiliary receiving part 7 from being damaged, but the closed cover holding part 4 abuts against the auxiliary receiving part 7 even if the closed cover holding part 4 moves or elastically deforms in a high pressure state. It means having a distance that does not.

本実施例においては、この閉蓋保持部４と補助受け止め部７との間隙６を、常態で１．３ｍｍ以上、７ｍｍ以下としている。この範囲に間隙６を設定することで、高圧状態においても閉蓋保持部４と補助受け止め部７とが当接せず、更に、万が一、閉蓋保持部４が破損して飛散しても、補助受け止め部７が破損することなく閉蓋保持部４を受け止めることができ、安全な状態を維持することができる。 In the present embodiment, the gap 6 between the lid holding part 4 and the auxiliary receiving part 7 is normally 1.3 mm or more and 7 mm or less. By setting the gap 6 in this range, the lid holding part 4 and the auxiliary receiving part 7 do not come into contact with each other even in a high pressure state, and even if the lid holding part 4 is broken and scattered, It is possible to receive the closed lid holding portion 4 without damaging the auxiliary receiving portion 7 and maintain a safe state.

即ち、本実施例は、閉蓋保持部４を受け止める手段として受け止め部５と補助受け止め部７とを設けているが、常態においては、この受け止め部５と補助受け止め部７との両方で閉蓋保持部４を受け止めるのではなく、受け止め部５のみで閉蓋保持部４を受け止めるように構成し、補助受け止め部７は、上述したように、閉蓋保持部４に対して間隙６を設けて配設した構成としたので、常態においては、閉蓋保持部４と当接しない構成、即ち、蓋体２が閉蓋保持部４を押圧する押圧力を全く受けない構成とし、よって、常態においては、疲労劣化することがない構成としている。 That is, in this embodiment, the receiving portion 5 and the auxiliary receiving portion 7 are provided as means for receiving the closing lid holding portion 4, but in the normal state, both the receiving portion 5 and the auxiliary receiving portion 7 close the lid. Instead of receiving the holding portion 4, it is configured to receive the closing lid holding portion 4 only by the receiving portion 5, and the auxiliary receiving receiving portion 7 is provided with the gap 6 with respect to the closing lid holding portion 4 as described above. In the normal state, the configuration is such that it does not come into contact with the lid holding portion 4, that is, the configuration in which the lid 2 does not receive any pressing force that presses the lid holding portion 4, and thus in the normal state. Has a structure that does not cause fatigue deterioration.

この補助受け止め部７を設けた外容器９は、上下方向が開口した高圧に耐え得る金属製の円筒容器に構成し、具体的には、圧力容器３の外径よりもやや径大の内径に設定し、圧力容器３の外周面と一定の間隙26を設けて同心状に配置する構成としている。 The outer container 9 provided with the auxiliary receiving portion 7 is configured as a metal cylindrical container that can withstand high pressure with an opening in the vertical direction. Specifically, the inner diameter is slightly larger than the outer diameter of the pressure container 3. The pressure vessel 3 is configured to be concentrically arranged with a constant gap 26 from the outer peripheral surface of the pressure vessel 3.

また、この外容器９の周面には、圧力容器３と同心状に配置した際に、圧力容器３の周面に設けた貫通孔８と連通状態となる外容器側貫通孔10を設けた構成としている。 The outer container 9 is provided with an outer container side through hole 10 that is in communication with the through hole 8 provided on the peripheral surface of the pressure vessel 3 when arranged concentrically with the pressure vessel 3. It is configured.

即ち、本実施例の高圧処理部16は、圧力容器３と外容器９とを同心状に配置すると共に貫通孔８と外容器側貫通孔10とを連通状態にした二重構造に構成しており、この連通孔８，10に閉蓋保持部４を挿通させてこの閉蓋保持部４を圧力容器３と外容器９とに貫通配設する構成としている。 That is, the high-pressure processing section 16 of the present embodiment is configured in a double structure in which the pressure vessel 3 and the outer vessel 9 are arranged concentrically and the through hole 8 and the outer vessel side through hole 10 are in communication with each other. The closed lid holding portion 4 is inserted into the communication holes 8 and 10 so that the closed lid holding portion 4 penetrates the pressure vessel 3 and the outer vessel 9.

また、この外容器９の外容器側貫通孔10は、圧力容器３に設けた貫通孔８よりも径大な寸法に設定し、閉蓋保持部４を貫通孔８と外容器側貫通孔10との連通孔８，10に貫通配設した際に、閉蓋保持部４は、貫通孔８とは隙間が生じない嵌合状態に配設されるが、外容器側貫通孔10に対しては、閉蓋保持部４は、外容器側貫通孔10の周縁10ａとの間に間隙６が生じる遊嵌状態に配設されるように構成している。 Further, the outer container side through hole 10 of the outer container 9 is set to have a diameter larger than that of the through hole 8 provided in the pressure container 3, and the lid holding part 4 is connected to the through hole 8 and the outer container side through hole 10. When the through-holes 8 and 10 are arranged to pass through, the closed lid holding portion 4 is arranged in a fitting state in which no gap is formed with the through-holes 8, but with respect to the outer container-side through-holes 10. The lid holding part 4 is configured to be arranged in a loosely fitting state in which a gap 6 is formed between the outer container side through hole 10 and the peripheral edge 10a.

即ち、受け止め部５が破損した際は、この受け止め部５に受け止められなくなった閉蓋保持部４が蓋体２に押圧されて押圧方向に押され外容器側貫通孔10の周縁10ａとの間にあった間隙６の距離が詰まり、この外容器側貫通孔10の周縁10ａの上縁部若しくは下縁部（上部蓋体２ａに押圧された場合は外容器側貫通孔10の上縁部、下部蓋体２ｂに押圧された場合は外容器側貫通孔10の下縁部）に当接し受け止められることとなり、よって、本実施例においては、外容器９の孔形成部、即ち、外容器９の外容器側貫通孔10の上縁部若しくは下縁部よりも端部側が、万が一、受け止め部５が破損した場合に閉蓋保持部４を受け止める補助受け止め部７となる。 That is, when the receiving part 5 is damaged, the closed lid holding part 4 that is no longer received by the receiving part 5 is pressed by the lid 2 and pressed in the pressing direction, so that there is a gap between the outer peripheral side through-hole 10 and the peripheral edge 10a. The distance of the gap 6 is reduced, and the upper edge or the lower edge of the peripheral edge 10a of the outer container side through hole 10 (the upper edge and lower cover of the outer container side through hole 10 when pressed by the upper lid 2a) When pressed by the body 2b, it comes into contact with and is received by the lower edge portion of the outer container side through-hole 10, so in this embodiment, the hole forming portion of the outer container 9, that is, the outer container 9 The end side of the container side through-hole 10 from the upper edge portion or the lower edge portion becomes the auxiliary receiving portion 7 that receives the closed lid holding portion 4 when the receiving portion 5 is damaged.

尚、本実施例では、上述した通り、閉蓋保持部４と補助受け止め部７、即ち、閉蓋保持部４と外容器９とを共に高圧に耐え得る金属材料で形成した構成としているが、具体的には、補助受け止め部７、即ち、外容器９を形成する金属材料は、閉蓋保持部４を形成する金属材料よりも軟らかい材質の金属材料（具体的には、ビッカース硬さが３８０以下の金属材料）を用いている。 In this embodiment, as described above, the lid holding part 4 and the auxiliary receiving part 7, that is, the lid holding part 4 and the outer container 9 are both formed of a metal material that can withstand high pressure. Specifically, the metal material forming the auxiliary receiving portion 7, that is, the outer container 9 is a metal material softer than the metal material forming the closed lid holding portion 4 (specifically, the Vickers hardness is 380). The following metal materials are used.

より具体的には、外容器９（補助受け止め部７）を形成する金属材料として、オーステナイト系ステンレス、例えばＳＵＳ３０４、或いは、一般構造用圧延鋼材、例えばＳＳ４００を用い、これに受け止められる閉蓋保持部４を形成する金属材料には、析出硬化系ステンレス、例えばＳＵＳ６３０を用いた構成としている。 More specifically, an austenitic stainless steel, such as SUS304, or a general structural rolled steel material, such as SS400, is used as a metal material for forming the outer container 9 (auxiliary receiving portion 7). For the metal material forming 4, precipitation hardening stainless steel, for example, SUS630 is used.

このように、本実施例は、勢いよく押し出された閉蓋保持部４をこの閉蓋保持部４よりも軟らかい材質の補助受け止め部７で受け止めることで、この補助受け止め部７が延性変形して衝撃を吸収するので、補助受け止め部７自体が破損し難くなり、よって、閉蓋保持部４をしっかりと受け止めて周囲への飛散を防止し、より安全性を高めることができる。 As described above, in this embodiment, when the closed lid holding portion 4 pushed out vigorously is received by the auxiliary receiving portion 7 made of a material softer than the closed lid holding portion 4, the auxiliary receiving portion 7 is deformed in a ductile manner. Since the impact is absorbed, the auxiliary receiving portion 7 itself is not easily damaged. Therefore, the closed lid holding portion 4 can be firmly received to prevent scattering to the surroundings, and safety can be further improved.

尚、上記以外の金属材料でも、本実施例の作用効果を発揮し得る組み合わせであれば、適宜採用するものとする。 It should be noted that metal materials other than those described above are appropriately adopted as long as they are combinations that can exhibit the effects of the present embodiment.

また、本実施例では、高圧に耐え切れずに受け止め部５が破損した場合、内部圧力に押圧され閉蓋保持部４が勢いよく上方に押し出されると同時に、この破損した受け止め部５も閉蓋保持部４に押圧されて上方に勢いよく押し出されることとなり、この上方に勢いよく押し出された受け止め部５が周囲に飛散しないように、この閉蓋保持部４に押圧され押し出された受け止め部５を受け止める第二補助受け止め部11を備えた構成としている。 Further, in this embodiment, when the receiving part 5 is damaged without being able to withstand high pressure, it is pressed by the internal pressure and the closing cover holding part 4 is pushed out upward at the same time. At the same time, the damaged receiving part 5 is also closed. The holding part 4 is pressed by the holding part 4 and pushed out vigorously, and the receiving part 5 pushed and pushed out by the closed lid holding part 4 so that the receiving part 5 pushed out vigorously upward is not scattered around. The second auxiliary receiving part 11 for receiving is provided.

この第二補助受け止め部11は、受け止め部５の上部側端面５ａと所定の間隙12を設けて、この受け止め部５上に配設した構成とし、具体的には、本実施例においては、第二補助受け止め部11を外容器９に設けた構成としており、具体的には、外容器９と同じ外径寸法に設定したリング状載置部11ａの上部に、円板状の金属板材に圧力容器３の取り出し開口部１とほぼ同径の開孔部11ｂを設けてドーナツ状に形成したカバー部11ｃを設けた構成とし、リング状載置部11ａは、第二補助受け止め部11を補助受け止め部７上に載置した際に、カバー部11ｃが受け止め部５と所定の隙間12を設けて配される高さに設定している。 The second auxiliary receiving portion 11 is provided on the receiving portion 5 with a predetermined gap 12 provided between the upper end surface 5a of the receiving portion 5 and, specifically, in this embodiment, Two auxiliary receiving portions 11 are provided in the outer container 9, specifically, a pressure is applied to the disk-shaped metal plate material on the upper part of the ring-shaped mounting portion 11 a set to the same outer diameter as the outer container 9. The opening 11b of the container 3 is provided with an opening 11b substantially the same diameter as the cover 11c formed in a donut shape, and the ring-shaped mounting portion 11a supports the second auxiliary receiving portion 11 as an auxiliary receiving portion. When placed on the portion 7, the cover portion 11c is set to a height at which the cover portion 11c is arranged with a predetermined gap 12 from the receiving portion 5.

また、この補助受け止め部７上に載置した第二補助受け止め部11は、図４に示すように、外側から半割リング状に形成した連結具27を被着して補助受け止め部７と連結状態にし、この補助受け止め部７と第二補助受け止め部11とを連結する連結具27は、フレーム17の天板17ａに固定し得る固定具28で固定する構成としている。 Further, as shown in FIG. 4, the second auxiliary receiving portion 11 placed on the auxiliary receiving portion 7 is connected to the auxiliary receiving portion 7 by attaching a connecting member 27 formed in a half ring shape from the outside. In this state, the connecting device 27 that connects the auxiliary receiving portion 7 and the second auxiliary receiving portion 11 is fixed by a fixing device 28 that can be fixed to the top plate 17 a of the frame 17.

上述のように構成した高圧処理部16は、フレーム17の底板17ｂに設けた支持部29に支持される構成とし、具体的には、図５に示すように、圧力容器３を支持する圧力容器支持部30ａと、外容器９を支持する外容器支持部30ｂとを設けた半割リング状に形成した高圧処理部支持体30に圧力容器３と外容器９とを載置し、この高圧処理部支持体30を、固定用リング体31を介して支持部29に固定する構成としている。 The high-pressure processing unit 16 configured as described above is configured to be supported by a support unit 29 provided on the bottom plate 17b of the frame 17, and more specifically, as shown in FIG. 5, a pressure vessel that supports the pressure vessel 3 The pressure vessel 3 and the outer vessel 9 are placed on a high-pressure treatment portion support 30 formed in a half ring shape provided with a support portion 30a and an outer vessel support portion 30b for supporting the outer vessel 9, and this high-pressure treatment The part support body 30 is configured to be fixed to the support part 29 via the fixing ring body 31.

本実施例は、以上のように構成したので、圧力容器３の取り出し開口部１を閉蓋する蓋体２の閉蓋状態を保持し処理室18内の高圧状態を保持するために、従来のプレス機構を用いた複雑且つ大型化した構造を採用することなく、極めて簡易な構成で蓋体２の閉蓋状態を強固に保持することができ、よって、設計実現が極めて容易で、安価に高圧処理装置を提供でき、しかも、従来に比してより容易に小型化を実現することができる。 Since the present embodiment is configured as described above, in order to maintain the closed state of the lid 2 that closes the extraction opening 1 of the pressure vessel 3 and to maintain the high pressure state in the processing chamber 18, Without adopting a complicated and large structure using a press mechanism, the closed state of the lid 2 can be firmly held with an extremely simple configuration, and therefore, the design is extremely easy to implement and the high pressure is inexpensive. A processing apparatus can be provided, and the size can be reduced more easily than in the past.

しかも、安全性に関しても、万が一、閉蓋保持部４を受け止めている受け止め部５が高圧に耐え切れずに破損し、この受け止め部５に受け止められていた閉蓋保持部４や蓋体２が圧力容器３内の超高圧状態の圧力媒体に押されて勢いよく押し出されても、補助受け止め部７が閉蓋保持部４を受け止めるので、蓋体２や閉蓋保持部４が勢いよく押し出されて周囲に飛散することなくこの高圧処理部16に留まり、よって、これらが飛散し周囲に危険を及ぼすような危険な状態となる可能性を可及的に低減した極めて安全性の高い高圧処理装置となる。 In addition, for safety, the receiving portion 5 receiving the closed lid holding portion 4 is damaged without being able to withstand high pressure, and the closed lid holding portion 4 and the lid body 2 received by the receiving portion 5 are damaged. Even if the auxiliary pressure receiving portion 7 receives the closed lid holding portion 4 even if it is pushed by the pressure medium in the ultrahigh pressure state in the pressure vessel 3, the lid 2 and the closed lid holding portion 4 are pushed out vigorously. The high-pressure processing unit 16 stays in the high-pressure processing unit 16 without scattering to the surroundings, and therefore, the possibility of a dangerous state in which these are scattered and cause danger to the surroundings is reduced as much as possible. It becomes.

即ち、この補助受け止め部７は、閉蓋保持部４に対して所定長の間隙６を設けて配設したことにより、常態においては、閉蓋保持部４と当接することがなく、よって、圧力容器３内の内部圧力によって開蓋方向に押圧される蓋体２が閉蓋保持部４を押圧する押圧力を受けることがない。 That is, the auxiliary receiving portion 7 is disposed with a gap 6 having a predetermined length with respect to the lid holding portion 4, so that it does not normally contact the lid holding portion 4. The lid 2 that is pressed in the opening direction by the internal pressure in the container 3 does not receive a pressing force that presses the lid holding portion 4.

従って、常に閉蓋保持部４と当接しこの閉蓋保持部４からの高い押圧力を繰り返し受け止めている受け止め部５は、金属疲労を起こして強度が低下するのに対して、この補助受け止め部７は、金属疲労することなく、設計強度を十分に保ったままの状態を維持することとなり、受け止め部５が破損し、閉蓋保持部４を受け止めることができなくなった状況において、更に詳しく言えば、図６のように、受け止め部５に亀裂が入り始めた状態では、まだ、閉蓋保持部４は補助受け止め部７と当接状態にはならず、図７，図８に示すような、受け止め部５が破断した状態となって、初めて、内部圧力によって勢いよく押し出された閉蓋保持部４と当接しこの閉蓋保持部４を受け止めることとなるが、この際、補助受け止め部７は、上述したように、閉蓋保持部４を受け止めるだけの十分な設計強度を有した状態でいるので、この補助受け止め部７が破損することなく閉蓋保持部４をしっかりと受け止めることができ、よって、蓋体２や閉蓋保持部４が周囲へ飛散されることなく安全な状態が保たれる極めて安全性に優れた高圧処理装置となる。 Accordingly, the receiving portion 5 that is always in contact with the closing lid holding portion 4 and repeatedly receives high pressing force from the closing lid holding portion 4 causes metal fatigue and decreases its strength. 7 can be said in more detail in a situation where the design strength is sufficiently maintained without metal fatigue, and the receiving portion 5 is damaged and cannot receive the closed lid holding portion 4. For example, as shown in FIG. 6, when the receiving part 5 starts to crack, the closed lid holding part 4 is not yet in contact with the auxiliary receiving part 7, as shown in FIGS. 7 and 8. For the first time, when the receiving part 5 is in a broken state, it comes into contact with and receives the closed lid holding part 4 pushed out vigorously by the internal pressure. At this time, the auxiliary receiving part 7 As mentioned above Since it is in a state having sufficient design strength to receive the lid holding part 4, it is possible to firmly receive the lid holding part 4 without damaging the auxiliary receiving part 7. It becomes a high-pressure processing apparatus excellent in safety in which the lid holding part 4 is kept in a safe state without being scattered around.

また、破損し圧力容器３と分断した受け止め部５は、勢いよく押し出された閉蓋保持部４によって上方に勢いよく押し出されることとなるが、本実施例は、この上方に勢いよく押し出された受け止め部５が周囲に飛散しないように、この受け止め部５の上方に受け止め部５を受け止める第二補助受け止め部11を備えた構成としたので、この受け止め部５も、蓋体２や閉蓋保持部４と同様に周囲に飛散することなく高圧処理部16に留まることとなり、より一層の安全性を備えた画期的な高圧処理装置となる。 Further, the receiving part 5 that is broken and divided from the pressure vessel 3 is pushed out vigorously upward by the closed lid holding part 4 pushed out vigorously. In this embodiment, the receiving part 5 is pushed out vigorously. Since the second auxiliary receiving portion 11 for receiving the receiving portion 5 is provided above the receiving portion 5 so that the receiving portion 5 does not scatter around, the receiving portion 5 is also provided with the lid body 2 and the lid holding. As in the case of the unit 4, it stays in the high-pressure processing unit 16 without being scattered around, so that it becomes an epoch-making high-pressure processing device with further safety.

尚、本発明は、本実施例に限られるものではなく、各構成要件の具体的構成は適宜設計し得るものである。 Note that the present invention is not limited to this embodiment, and the specific configuration of each component can be designed as appropriate.

１取り出し開口部
２蓋体
３圧力容器
４閉蓋保持部
５受け止め部
６間隙
７補助受け止め部
８貫通孔
９外容器
10 外容器側貫通孔
10ａ周縁
11 第二補助受け止め部
12 間隙
13 被処理物 DESCRIPTION OF SYMBOLS 1 Extraction opening part 2 Cover body 3 Pressure vessel 4 Closed lid holding part 5 Receiving part 6 Gap 7 Auxiliary receiving part 8 Through-hole 9 Outer container
10 Outer container side through hole
10a margin
11 Second auxiliary receiving part
12 gap
13 Workpiece

Claims

A pressure vessel having a lid that opens and closes the take-off opening, and a closed state that prevents the lid from opening when the lid is pressed in the direction of opening due to a pressure increase in the pressure vessel and maintains the closed state. A high pressure unit that includes a lid holding unit and a receiving unit that receives the closed lid holding unit pressed by the lid body, and pressurizes a workpiece contained in the pressure vessel with a pressure medium introduced into the pressure vessel to perform high-pressure processing. In the processing apparatus, an auxiliary receiving portion is provided by providing a gap of a predetermined length with respect to the closing lid holding portion, and the auxiliary receiving portion receives the closing lid holding portion when the receiving portion is damaged during high-pressure processing. A high-pressure processing apparatus characterized by being configured as described above.

The closed lid holding portion is formed in a bowl shape, and a through hole is provided on the circumferential surface of the pressure vessel formed in a cylindrical shape so that the closed lid holding portion formed in the bowl shape can be disposed therethrough and inserted into the through hole. The pressure vessel hole forming portion that contacts when the closed lid holding portion is pressed against the lid body is used as the receiving portion, and the lid holding portion is inserted into the through hole and penetrates the pressure vessel. The lid body is configured such that when it is disposed, the lid holding portion is disposed immediately above the lid body in the closed state, or is penetrated through the lid body in the closed state. When the pressure in the pressure vessel is pressed in the opening direction, the lid holding part received by the hole forming part as the receiving part prevents the lid from opening, and the lid The high-pressure processing apparatus according to claim 1, wherein the high-pressure processing apparatus is configured to hold the closed state.

The gap provided between the lid holding part and the auxiliary receiving part is a gap as close as possible, and the inside of the pressure vessel is in a high pressure state and the lid presses the lid holding part. The high-pressure processing apparatus according to any one of claims 1 and 2, characterized in that the distance is set such that the lid holding part does not contact the auxiliary receiving part.

The said lid holding part and the said auxiliary | assistant receiving part consist of metal materials, and the said auxiliary | assistant receiving part consists of a metal material of a softer material than the said lid closing part. The high-pressure processing apparatus according to item 1.

An outer container surrounding the pressure vessel is provided, and an outer container side through hole communicating with a through hole provided in the pressure vessel through which the closed lid holding portion can be disposed is provided in the outer container, and the outer container side through hole is provided. The hole forming part of the outer container provided with a hole is used as the auxiliary receiving part, and the outer container side through hole is larger in diameter than the inner diameter of the through hole, and is inserted into the outer container side through hole. The high-pressure processing apparatus according to any one of claims 1 to 4, wherein the inner diameter is set such that the gap is provided between the lid holding part and a peripheral edge of the outer container side through hole.

A second auxiliary receiving portion is provided for receiving the receiving portion when the receiving portion is damaged. The second auxiliary receiving portion is provided on the receiving portion with a predetermined gap from the upper end surface of the receiving portion. The high-pressure processing apparatus according to claim 1, wherein the high-pressure processing apparatus is arranged.