JPH081326A - Under water working device - Google Patents

Under water working device

Info

Publication number
JPH081326A
JPH081326A JP6135325A JP13532594A JPH081326A JP H081326 A JPH081326 A JP H081326A JP 6135325 A JP6135325 A JP 6135325A JP 13532594 A JP13532594 A JP 13532594A JP H081326 A JPH081326 A JP H081326A
Authority
JP
Japan
Prior art keywords
nozzle
water
solid partition
processing apparatus
underwater
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP6135325A
Other languages
Japanese (ja)
Other versions
JP3006412B2 (en
Inventor
Masahiko Sakamoto
征彦 坂本
Hisanobu Okamura
久宣 岡村
Eiichi Sekiguchi
栄一 関口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP6135325A priority Critical patent/JP3006412B2/en
Publication of JPH081326A publication Critical patent/JPH081326A/en
Application granted granted Critical
Publication of JP3006412B2 publication Critical patent/JP3006412B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/0061Underwater arc welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/12Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
    • B23K26/1224Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure in vacuum
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/14Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/14Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
    • B23K26/1423Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor the flow carrying an electric current

Abstract

PURPOSE:To enable underwater working under an atmosphere of a satisfactory airtightness by providing a high speed air flow discharge nozzle for locally excluding water while spouting out a high speed air flow and at least plural layers of a solid- state partition having flexibility on the outer peripheral part of the nozzle. CONSTITUTION:A nozzle 1 for water shielding for locally excluding water is provided and on the outer peripheral part of the nozzle, a flexible solid-state partition 4 for shielding water is provided. These are independently movable. Further, the solid-state partition 4 is equipped with a mechanism to be pushed on the surface 6 of a member of the worked by a pressurizing spring 5. Further, this working device is equipped with a second nozzle for excluding and blocking water on the outer periphery of the solid-state partition 4, that is, a nozzle 10 for pressurizing the solid-state partition to be used for pressurizing the solid-state partition 4. The base part 11 of the solid-state partition 4 is always pressed on the surface of the material to be worked by compressed air or compressed gas or jet water 12, and comes into stable contact with the surface of the material to be worked. Therefore, water can be stably excluded while moving the base part 11 according to the surface shape of the member to be worked to execute stable welding under the water.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、水中で加工を行う装置
に係り、特に原子力装置,船舶,橋梁などの関連機器の
設置,修理,加工のために切断,研削,溶接,表面処理
を行う水中加工装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underwater processing apparatus, and in particular, performs cutting, grinding, welding, and surface treatment for installation, repair, and processing of related equipment such as nuclear power equipment, ships, and bridges. Underwater processing equipment.

【0002】[0002]

【従来の技術】従来、水中で金属や非金属を加工する場
合、例えば水中溶接の場合は、水を排除しない雰囲気で
被覆アーク溶接を行う湿式法は継手部にブローホール等
の欠陥が生じやすく信頼性の点で問題があった。また、
溶接部全体を排水室で覆い、その中で水を空気又はシー
ルドガスで置換した後、陸上での溶接法をそのまま適用
した乾式法の場合は、被溶接物の形状に応じた排水室が
必要となるため、その設備に多大な経費を要した。
2. Description of the Related Art Conventionally, in the case of processing metal or non-metal in water, for example, in the case of underwater welding, the wet method of performing covered arc welding in an atmosphere that does not remove water is apt to cause defects such as blowholes in joints. There was a problem in terms of reliability. Also,
In the case of the dry method in which the entire welding part is covered with a drainage chamber and the water is replaced with air or shielding gas in it, and the land-based welding method is applied as it is, a drainage chamber corresponding to the shape of the workpiece is required. Therefore, the equipment required a great deal of money.

【0003】そのため、加工部分の水を局部的に排除し
た空洞を作り、その空洞内で溶接や表面処理などの加工
を行う局部乾式法(以後、局部シールド法と記述する)が
水中加工においては主流となっている。
Therefore, a local dry method (hereinafter referred to as a local shield method) for forming a cavity in which water in a processed portion is locally removed and performing processing such as welding and surface treatment in the cavity is not suitable for underwater processing. It is the mainstream.

【0004】上記、局部シールド法による加工では、局
部シールド内から水を安定に排除することが重要とな
り、これに関して多くの方法が提案されている。例えば
特開昭49−79939 号公報では、シールドガスノズルを三
重にし、第1の放射ノズルからはシールドガスを第2の
放射ノズルからは気体の高速噴流を第3の放射ノズルか
らは水の高速噴流を放射し、シールド内の安定した気相
領域を形成する方法が開示されている。また、実開昭55
−116785号公報では、局部シールドの裾部に炭素繊維等
で構成されたスカート形仕切材を有する溶接用トーチが
開示されている。これらの方法でも通常の水中加工用途
に対しては十分な品質の加工部を得ることができた。
In the above-mentioned processing by the local shield method, it is important to stably remove water from the local shield, and many methods have been proposed for this. For example, in Japanese Unexamined Patent Publication No. 49-79939, the shield gas nozzle is tripled, the shield gas is supplied from the first emission nozzle, the high-speed jet of gas is supplied from the second emission nozzle, and the high-speed jet of water is supplied from the third emission nozzle. Of radiating light to form a stable gas phase region within the shield. Also, the actual exploitation 55
Japanese Patent Laid-Open No. 116785 discloses a welding torch having a skirt type partition member made of carbon fiber or the like at the hem of the local shield. Even with these methods, it was possible to obtain a processed part of sufficient quality for ordinary underwater processing applications.

【0005】[0005]

【発明が解決しようとする課題】しかし、原子力関連装
置など加工部の品質向上が強く要望される分野では、局
部シールド内の微量の水分の残存が問題となる。また、
船舶,橋梁等補修等の一般的な分野でも、信頼性の高い
加工部を得ることができることが望ましい。最終的に
は、前述した溶接部全体を排出室で覆い、その水を空気
又はシールドガスで置換した乾式法を用いて得られる加
工部にできるだけ近い加工部を得ることが最も望ましい
が、上記従来技術ではその達成が困難であった。特開昭
49−79939 号に開示されている発明では、第3ノズルか
らの水の高速噴流でウォータカーテンを形成して局部シ
ールド内への水の浸入を防いでいるが、被加工物が複雑
形状である場合には形成されるウォータカーテンでは、
水の浸入を完全には防止することができない可能性があ
る。また実開昭55−116785号では溶接機の押し付け力を
作業者の力加減に頼っており、水の浸入を防ぐには熟練
を要する。また、原子炉内の補修は放射線の影響のため
実現できない。
However, in the field where the quality improvement of the processing part such as nuclear power related equipment is strongly demanded, the residual of a small amount of water in the local shield becomes a problem. Also,
It is desirable to be able to obtain a highly reliable machined part even in general fields such as repair of ships and bridges. Finally, it is most desirable to cover the entire welded part with the discharge chamber and obtain a processed part as close as possible to the processed part obtained by using the dry method in which the water is replaced by air or a shielding gas. It was difficult to achieve with technology. JPA
In the invention disclosed in 49-79939, a high speed jet of water from the third nozzle forms a water curtain to prevent water from entering the local shield, but the work piece has a complicated shape. In the case of the water curtain formed,
The ingress of water may not be completely prevented. In addition, in Japanese Utility Model Laid-Open No. 55-116785, the pressing force of the welding machine depends on the force of the worker, and skill is required to prevent water from entering. Moreover, repairs inside the reactor cannot be realized due to the effects of radiation.

【0006】本発明は上記の問題点を解決し、水中下の
複雑な形状部材の加工でもシールド内への水の浸入を防
止し、信頼性の高い加工ができる局部シールド機構を備
えた水中加工装置を提供することを目的とする。
The present invention solves the above problems, prevents the intrusion of water into the shield even when processing a complicated shaped member under water, and has a local shield mechanism capable of highly reliable processing. The purpose is to provide a device.

【0007】[0007]

【課題を解決するための手段】上記目的を達成するた
め、本発明によれば、水中で水を局部的に排除しながら
被加工物を加工する加工機を備えた水中加工装置におい
て、高速気流を噴出し局部的に水を排除するための高速
気流放出ノズルと、該ノズルの外周部に前記ノズル内の
気密性を保持できる形状の可撓性を有する固体隔壁を、
少なくとも2層以上備えている水中加工装置が提供され
る。
In order to achieve the above object, according to the present invention, a high-speed air flow is provided in an underwater processing apparatus equipped with a processing machine for processing a workpiece while locally removing water in water. A high-speed airflow discharge nozzle for locally ejecting water, and a flexible solid partition having a shape capable of maintaining the airtightness inside the nozzle on the outer peripheral portion of the nozzle,
An underwater processing apparatus having at least two layers is provided.

【0008】また、上記水中加工装置において、高速気
流を噴出し局部的に水を排除するための第1のノズル
と、前記第1のノズル内の気密性を保持できるような形
状の可撓性を有する固体隔壁を前記第1のノズルの外周
部に少なくとも1層備え、更に、前記固体隔壁の裾部を
該固体隔壁の外周部から被加工物の表面に押圧するため
の機構を備える水中加工装置が提供される。
Further, in the above-mentioned underwater processing apparatus, a first nozzle for ejecting a high-speed air stream to locally remove water, and a flexibility of a shape capable of maintaining airtightness inside the first nozzle Underwater processing comprising a solid partition having at least one layer on the outer peripheral portion of the first nozzle, and further including a mechanism for pressing the skirt of the solid partition from the outer peripheral portion of the solid partition onto the surface of the workpiece. A device is provided.

【0009】また、上記水中加工装置において、高速気
流を噴出し局部的に水を排除するための第1のノズル
と、前記第1のノズル内の気密性を保持できるような形
状の可撓性を有する固体隔壁を前記第1のノズルの外周
部に少なくとも1層備え、更に、高速流体を噴出し、前
記固体隔壁の裾部を被加工物の表面に押圧するための第
2のノズルを該固体隔壁の外周部に備える水中加工装置
が提供される。
Further, in the above-mentioned underwater processing apparatus, a first nozzle for ejecting a high-speed air current to locally remove water, and a flexibility of a shape capable of maintaining airtightness inside the first nozzle A solid partition wall having at least one layer on the outer peripheral portion of the first nozzle, and further comprising a second nozzle for ejecting a high-speed fluid to press the skirt of the solid partition wall against the surface of the workpiece. An underwater processing apparatus provided on the outer peripheral portion of a solid partition is provided.

【0010】また、上記水中加工装置において、高速気
流を噴出し局部的に水を排除するための第1のノズル
と、前記第1のノズル内の気密性を保持できるような形
状の可撓性を有する固体隔壁を前記第1のノズルの外周
部に少なくとも1層備え、更に、高速流体を噴出し、前
記固体隔壁の裾部を被加工物の表面に押圧するための第
2のノズルを該固体隔壁の外周部に備え、更に、前記固
体隔壁を被加工物の表面に弾性体を用いて押圧する水中
加工装置が提供される。
Further, in the above-mentioned underwater processing apparatus, a first nozzle for ejecting a high-speed air stream to locally remove water, and a flexibility of a shape capable of maintaining airtightness inside the first nozzle A solid partition wall having at least one layer on the outer peripheral portion of the first nozzle, and further comprising a second nozzle for ejecting a high-speed fluid to press the skirt of the solid partition wall against the surface of the workpiece. Provided is an underwater processing apparatus which is provided on an outer peripheral portion of a solid partition wall and further presses the solid partition wall onto the surface of a workpiece by using an elastic body.

【0011】また、上記水中加工装置において、高速気
流を噴出し局部的に水を排除するための第1のノズル
と、前記第1のノズル内の気密性を保持できるような形
状の可撓性を有する固体隔壁を前記第1のノズルの外周
部に少なくとも1層備え、更に、前記固体隔壁の裾部を
該固体隔壁の外周部から被加工物の表面に弾性体を用い
て押圧する水中加工装置が提供される。
Further, in the above-mentioned underwater processing apparatus, a first nozzle for ejecting a high-speed air stream to locally remove water, and a flexibility of a shape capable of maintaining airtightness inside the first nozzle A solid partition having at least one layer on the outer peripheral portion of the first nozzle, and further, the bottom of the solid partition is pressed from the outer peripheral portion of the solid partition to the surface of the workpiece by using an elastic body. A device is provided.

【0012】また、上記の構成の水中加工装置におい
て、前記第1のノズルと固体隔壁は、それぞれ独立に移
動できる機構を備えることが好ましい。
Further, in the underwater processing apparatus having the above structure, it is preferable that the first nozzle and the solid partition have a mechanism capable of moving independently.

【0013】また、上記水中加工装置において、前記高
速流体は空気,不活性ガス,水のいずれかであることが
好ましい。
Further, in the underwater processing apparatus, it is preferable that the high-speed fluid is any one of air, inert gas, and water.

【0014】また、上記水中加工装置において、前記可
撓性を有する固体隔壁は炭素繊維,シリコンウール,ガ
ラス繊維,セラミック繊維の群から選ばれた1種以上の
繊維から作製された布を加工したものからなることが好
ましい。
In the underwater processing apparatus, the flexible solid partition wall is made of a cloth made of one or more kinds of fibers selected from the group consisting of carbon fiber, silicon wool, glass fiber and ceramic fiber. It is preferably made of one.

【0015】また、上記水中加工装置において、前記第
1のノズル内に雰囲気を感知するセンサーを備え、該セ
ンサーからの信号によって、前記固体隔壁の裾部を被加
工物の表面に押圧する押圧力を制御する機構を備えるこ
とが好ましい。
Further, in the above-mentioned underwater processing apparatus, a sensor for detecting an atmosphere is provided in the first nozzle, and a pressing force for pressing the skirt portion of the solid partition wall against the surface of the workpiece by a signal from the sensor. It is preferable to provide a mechanism for controlling

【0016】また、上記水中加工装置において、前記加
工機はアーク溶接機であってもよい。
In the underwater processing apparatus, the processing machine may be an arc welding machine.

【0017】また、上記水中加工装置において、前記加
工機はレーザー加工機であってもよい。
In the underwater processing apparatus, the processing machine may be a laser processing machine.

【0018】[0018]

【作用】本発明の第1は、高速気流を噴出し局部的に水
を排除するための高速気流放出ノズルと、該ノズルの外
周部に前記ノズル内の気密性を保持できる形状の可撓性
を有する固体隔壁を、少なくとも2層以上備えているこ
とを特徴とする水中加工装置である。従来の水中加工装
置では、水を遮蔽するための固体隔壁は1層であった
が、この場合シールド内から大きな気泡が放出される
と、その圧力でシールド内の気密が保持できなくなり、
水が浸入する可能性があった。固体隔壁を2層以上備え
ることにより、隔壁と隔壁の間の空間が水の浸入を防ぐ
ため気密の保持が可能となる。固体隔壁は例えば円筒
状,らっぱ状の形状を同心円状に重ね合わせた構造をし
ており、重ね合わせた固体隔壁の数を1層,2層と表現
している。気密性向上のためには、固体隔壁の間にある
程度の空間が必要である。この空間は、あまり大きすぎ
ても気密性保持の効果が少なくなる。前記ノズル内空間
の体積以下の空間体積であることが望ましい。
The first aspect of the present invention is to provide a high-speed airflow discharge nozzle for ejecting a high-speed airflow to locally remove water, and a flexible shape having a shape capable of maintaining airtightness inside the nozzle at the outer peripheral portion of the nozzle. An underwater processing apparatus comprising at least two layers of solid partition walls having In the conventional underwater processing apparatus, the solid partition wall for shielding water is one layer, but in this case, if large bubbles are released from the inside of the shield, the pressure makes it impossible to maintain the airtightness in the shield,
Water could get in. By providing two or more layers of the solid partition walls, the space between the partition walls prevents water from entering, so that airtightness can be maintained. The solid partition has, for example, a structure in which cylindrical and trapezoidal shapes are concentrically stacked, and the number of stacked solid partition is expressed as one layer or two layers. In order to improve the airtightness, some space is required between the solid partition walls. Even if this space is too large, the effect of maintaining airtightness is reduced. It is desirable that the space volume be less than or equal to the volume of the space inside the nozzle.

【0019】また、本発明の第2は、高速気流を噴出し
局部的に水を排除するための第1のノズルと、前記第1
のノズル内の気密性を保持できるような形状の可撓性を
有する固体隔壁を前記第1のノズルの外周部に備え、更
に、前記固体隔壁の裾部を該固体隔壁の外周部から被加
工物の表面に押圧するための機構を備える水中加工装置
である。
A second aspect of the present invention is the first nozzle for ejecting a high-speed air current to locally remove water, and the first nozzle.
Of the first nozzle is provided with a flexible solid partition having a shape capable of maintaining airtightness inside the nozzle, and the skirt of the solid partition is processed from the outer peripheral part of the solid partition. The underwater processing apparatus includes a mechanism for pressing the surface of an object.

【0020】上記発明における特徴は可撓性を有する
固体隔壁が被加工物の微妙な凹凸に合わせて変形し、第
1のノズル内の気密性を保持する。固体隔壁を外周部
から被加工物の表面形状に合わせて押し付けることによ
り固体隔壁の被加工物表面への密着性が向上し、気密性
がより高まる。水中加工装置の水深や水深方向に対す
る溶接装置の向きに応じて、固体隔壁の外周部からの押
圧力を可変することによって、第1のノズル内の気密性
が最も良くなるように適宜に調節できる。これは固体隔
壁の外周部からの押圧力として、固体隔壁の外周部に第
2のノズルを備えた場合、第2のノズルからの高速流体
の流量を調節することによって、より微妙に押圧力を調
整可能となる。第1のノズル内に湿度センサーを設
け、湿度が最も低くなるように、固体隔壁の押圧力をコ
ンピュータを用いてフィードバック制御することによ
り、より気密性を高めることができる。
The feature of the above invention is that the flexible solid partition wall is deformed according to the fine irregularities of the workpiece, and the airtightness inside the first nozzle is maintained. By pressing the solid partition wall from the outer peripheral portion according to the surface shape of the workpiece, the adhesion of the solid partition wall to the surface of the workpiece is improved, and the airtightness is further enhanced. By varying the pressing force from the outer peripheral portion of the solid partition wall according to the water depth of the underwater processing device and the direction of the welding device with respect to the water depth direction, it is possible to appropriately adjust the airtightness inside the first nozzle to be the best. . As the pressing force from the outer peripheral portion of the solid partition wall, when the second nozzle is provided at the outer peripheral portion of the solid partition wall, the pressing force can be more delicately adjusted by adjusting the flow rate of the high-speed fluid from the second nozzle. It will be adjustable. By providing a humidity sensor in the first nozzle and performing feedback control of the pressing force of the solid partition wall using a computer so that the humidity becomes the lowest, the airtightness can be further improved.

【0021】従来の技術においては、バネ,油圧,水圧
により固体隔壁を被加工物表面に押し付ける方法は知ら
れていたが、その方法は、固体隔壁を隔壁端部(被加工
物に接している側と反対側の端部)から押し付けるもの
であった。この方法では固体隔壁と被加工物表面接触部
の気密性が十分でない場合が生じる可能性があった。特
に、固体隔壁の構成材料が可撓性の良いものである場
合、その傾向が強かった。この問題に対し、本発明者ら
は固体隔壁の裾部(固体隔壁と被加工物表面の接触部近
傍)の外周部から押圧力を加えることによって第1のノ
ズル内の気密性を向上させることができることを見いだ
し本発明に至ったものである。この固体隔壁外周部から
の押圧力としては、バネ,ゴム等の弾性体を用いても良
いし、固体隔壁の外周部に第2のノズルを備えて、第2
のノズルから高速流体を固体隔壁の外側から固体隔壁に
沿って流すことにより、その流体の圧力により押し付け
ても良い。また、弾性体と第2のノズルからの高速流体
を併用してもよい。これらの固体隔壁の押圧力を変化さ
せれば、水中加工装置の水深,水深方向に対する溶接装
置の向きに応じて、第1のノズル内の気密性が最も良く
なるように調節できる。
In the prior art, a method of pressing a solid partition wall against the surface of a workpiece by a spring, hydraulic pressure, or water pressure has been known, but in this method, the solid partition wall is in contact with the edge of the partition wall (in contact with the workpiece). It was pressed from the side and the opposite end). In this method, there is a possibility that the airtightness of the solid partition wall and the surface contact portion of the workpiece may not be sufficient. In particular, when the constituent material of the solid partition wall has good flexibility, the tendency was strong. With respect to this problem, the present inventors improve the airtightness in the first nozzle by applying a pressing force from the outer peripheral portion of the skirt portion of the solid partition wall (in the vicinity of the contact portion between the solid partition wall and the workpiece surface). The present invention has been made by discovering that the above can be achieved. As the pressing force from the outer peripheral portion of the solid partition wall, an elastic body such as a spring or rubber may be used, or a second nozzle may be provided on the outer peripheral portion of the solid partition wall to
The high-speed fluid may be caused to flow from the outside of the solid partition along the solid partition by pressing the nozzle so as to be pressed by the pressure of the fluid. Further, the elastic body and the high-speed fluid from the second nozzle may be used together. By changing the pressing force of these solid partition walls, it is possible to adjust the airtightness in the first nozzle to be the best depending on the water depth of the underwater processing apparatus and the orientation of the welding apparatus with respect to the water depth direction.

【0022】その場合、気密性向上のキーとなるのは、
固体隔壁の形状である。固体隔壁が可撓性をもつ材料
で、できており更にらっぱ状にひろがった形状をしてい
ないと、固体隔壁の裾部を上記のように被加工物の表面
に押し付けることができない。更に、固体隔壁を第2の
ノズルの高速流体の噴出だけでなく、バネ,ゴム等の弾
性体での押圧を併用することによって、高速流体の噴出
量を低減できるため、第2のノズルや高速流体を移送す
る管の設計が容易となる。
In this case, the key to improving the airtightness is
It is the shape of a solid partition. If the solid partition wall is made of a flexible material and is not formed in a broader shape, the skirt portion of the solid partition wall cannot be pressed against the surface of the workpiece as described above. Further, not only the high-speed fluid ejected from the second nozzle by the solid partition wall but also the pressing force of the elastic body such as a spring or rubber can be used to reduce the ejection amount of the high-speed fluid. It facilitates the design of the pipe for transferring the fluid.

【0023】また、第1のノズルと固体隔壁は単独に移
動する機構を備えることにより水中での加工と水のシー
ルドが容易となり、品質の高い水中加工が可能となる。
例えば、TIG(Tungsten Inert Gas)溶接法によって
水中で溶接や表面処理を行う場合、溶接を開始する際、
アークを発生させるために、電極の先端を被加工部材の
表面に接触させ、アークの発生と同時に再度、基の位置
に戻る必要がある。ここで、前記、電極と一体となって
いる第1の水シールド用のノズルは固体隔壁と単独に移
動するため、固体隔壁は被加工部材の表面に接触した状
態で、前記、水シールド用のノズルだけを上下に移動で
きる。従って、固体壁より加工部への水の浸入が阻止さ
れ、安定した溶接が可能となる。
Further, since the first nozzle and the solid partition wall are provided with a mechanism for moving independently, it is easy to process in water and shield the water, and high-quality underwater processing becomes possible.
For example, when performing welding or surface treatment in water by the TIG (Tungsten Inert Gas) welding method, when starting welding,
In order to generate an arc, it is necessary to bring the tip of the electrode into contact with the surface of the member to be processed and to return to the original position at the same time as the arc is generated. Here, since the nozzle for the first water shield, which is integrated with the electrode, moves independently of the solid partition wall, the solid partition wall is in contact with the surface of the member to be processed. Only the nozzle can be moved up and down. Therefore, invasion of water from the solid wall into the processed portion is prevented, and stable welding is possible.

【0024】また、第2のノズルから噴出する高速流体
は空気,不活性ガス,水のいずれかであればよい。水中
加工を行う場合は、高速水流を用いると、空気,不活性
ガスに比べ効率の良い押圧力が得られるが、高速水流を
発生させるための設備が必要となる。空気,不活性ガス
を使用した場合は、高圧ガスボンベより減圧器を通して
第2のノズルに気体を供給すれば良いだけなので、設備
は高速水流を用いた場合に比べ簡略になる。高速流体と
して空気,不活性ガス,水のいずれを使うかはコストそ
の他の要求に合わせ適宜選択される。
The high-speed fluid ejected from the second nozzle may be any of air, inert gas and water. When performing underwater processing, if a high-speed water stream is used, a more efficient pressing force can be obtained than with air and inert gas, but equipment for generating a high-speed water stream is required. When air or an inert gas is used, it is only necessary to supply the gas from the high-pressure gas cylinder to the second nozzle through the decompressor, and therefore the equipment is simpler than when a high-speed water flow is used. Whether to use air, inert gas, or water as the high-speed fluid is appropriately selected according to cost and other requirements.

【0025】固体隔壁の材質としては、炭素繊維,シリ
コンウール,ガラス繊維,セラミック繊維の単独または
それらの組合わせから構成されることが望ましい。固体
隔壁の材質としては、加工が溶接の場合には、高温のス
パッタが飛散するため耐熱性が要求される。また、被加
工物の表面の凹凸に合わせ変形して、高度の気密性を保
持するため可撓性が要求される。それらの要求を満たす
材料として、上記材質が選択される。炭素繊維は、可撓
性に優れ、他の材料に比べ価格が安いというメリットが
あるが、耐酸化性はあまり優れない。セラミック繊維は
耐酸化性は優れるものの、価格が炭素繊維に比べ高く、
可撓性も炭素繊維に比べると劣る。シリコンウール,ガ
ラス繊維はそれらの中間の性質をもっており、水中加工
機の必要特性に応じて適宜材質を選択する。固体隔壁は
これらの繊維を布状に織りあげたものを用い、それらを
適宜加工したものを用いる。加工とは、短冊上に切断
し、それらを複数枚重ねて円錐形のスカート状にするな
どのことをいう。布の厚さは0.5mm 以上が好ましい
が、あまり厚くなると可撓性が劣るため、5mm厚さを限
度として用いることが好ましい。
The material of the solid partition wall is preferably composed of carbon fiber, silicon wool, glass fiber, ceramic fiber, or a combination thereof. As for the material of the solid partition wall, when the processing is welding, high temperature spatters are scattered, so that heat resistance is required. Also, flexibility is required in order to maintain a high degree of airtightness by deforming according to the irregularities of the surface of the workpiece. The above-mentioned materials are selected as materials satisfying those requirements. Although carbon fibers have the advantage of being highly flexible and cheaper than other materials, they are not so excellent in oxidation resistance. Although ceramic fibers have excellent oxidation resistance, they are more expensive than carbon fibers,
The flexibility is also inferior to carbon fiber. Silicon wool and glass fiber have properties intermediate between them, and the material is appropriately selected according to the required characteristics of the underwater processing machine. As the solid partition wall, a material obtained by weaving these fibers into a cloth is used, and a material obtained by appropriately processing them is used. Processing means cutting into strips and stacking a plurality of them into a conical skirt shape. The thickness of the cloth is preferably 0.5 mm or more, but if it is too thick, the flexibility is poor, so it is preferable to use the cloth with a thickness of 5 mm as a limit.

【0026】また、第2のノズルを用いる場合は、第2
のノズルの高速流体の流量は、第1のノズル内の気密性
が最も良くなるように調整されることが望ましい。この
調整は、第1のノズル内の気密性を常に監視し、水の浸
入が生じた場合は、高速流体の流量を多くし、固体隔壁
の被加工物への密着性を向上するようにすることが望ま
しい。また、高速流体の流量を多くすれば、気密性は向
上するが、過剰の流量は不経済なため、適当な流量を流
すことが望ましい。このため、第1のノズル内に湿度セ
ンサー,温度センサー,酸素センサー等を備付け、それ
らセンサーの情報に応じて、高速流体の流量を変化させ
る機構を設けることが望ましい。この調整にはマイクロ
コンピュータによる高速演算システムを用いて、リアル
タイムで制御することが最も望ましい。
When using the second nozzle, the second nozzle is used.
It is desirable that the flow rate of the high-speed fluid in the nozzle is adjusted so that the airtightness in the first nozzle is maximized. This adjustment constantly monitors the airtightness in the first nozzle, and when water intrusion occurs, increases the flow rate of the high-speed fluid to improve the adhesion of the solid partition wall to the workpiece. Is desirable. Further, if the flow rate of the high-speed fluid is increased, the airtightness is improved, but since an excessive flow rate is uneconomical, it is desirable to flow an appropriate flow rate. For this reason, it is desirable to provide a humidity sensor, a temperature sensor, an oxygen sensor, etc. in the first nozzle, and to provide a mechanism for changing the flow rate of the high-speed fluid according to the information from these sensors. For this adjustment, it is most desirable to control in real time using a high-speed computing system using a microcomputer.

【0027】また、水中加工装置としてアーク溶接機を
用いた場合は、被加工物の亀裂の補修等に適用できる。
Further, when an arc welding machine is used as the underwater processing apparatus, it can be applied to repair cracks in a workpiece.

【0028】水中加工装置としてレーザー加工機を用い
た場合は、微細な加工が可能になり、また、表面処理に
も適用できる。
When a laser processing machine is used as the underwater processing apparatus, fine processing becomes possible, and it can also be applied to surface treatment.

【0029】以上の水中加工装置の第1のノズルには加
工用のノズルも備えられている。つまり、水を排除する
ための第1の水シールド用のノズルの内部に、加工用ノ
ズルが備えられ、これが一体化されている。なお、水を
排除するための第1のノズルから排出されるガスは、加
工部分を外気から保護するためのシールドの効果も有し
ている。加工用のノズルとしては、溶接,表面処理,切
断などのトーチ先端部分である。例えば、TIG溶接用
のタングステン電極,レーザ熱源先端の加工レンズやミ
ラー機構,溶射用のノズルなどである。
The first nozzle of the above-mentioned underwater processing apparatus is also provided with a processing nozzle. That is, the processing nozzle is provided inside the first water shield nozzle for removing water, and the processing nozzle is integrated. The gas discharged from the first nozzle for removing water also has a shield effect for protecting the processed portion from the outside air. The nozzle for processing is the tip of the torch for welding, surface treatment, cutting, etc. For example, a tungsten electrode for TIG welding, a processing lens and a mirror mechanism at the tip of a laser heat source, a spray nozzle, and the like.

【0030】[0030]

【実施例】【Example】

(実施例1)図1に本発明の第1の実施例を示す。局部
的に水を排除する水シールド用ノズル1とその外周部に
水を遮蔽する固体隔壁4を備え、これらは単独に移動が
可能で更に固体隔壁4は加圧バネ5によって被加工部材
表面6の表面に押し付けられる機構を有し、更に前記固
体隔壁4の外周に水を排除,遮蔽する第2のノズル、即
ち、固体隔壁を加圧するための固体隔壁加圧用ノズル1
0を備えた加工装置である。固体隔壁4の裾部11は圧
縮空気又は圧縮ガスあるいは噴流水(すべて12と記
載)によって常に被加工材の表面に押圧され、被加工材
の表面に安定に接触している。このため、加工部材の表
面形状に応じて移動させながら水を安定して排除でき
る。従って、複雑形状の加工部材でも水中で安定に溶接
ができる。固体隔壁はカーボン繊維からなる厚さ0.5m
m の布をらっぱ状に10枚重ねて成型したものを使用し
ている。またシールドガスはArガスを用いた。
(Embodiment 1) FIG. 1 shows a first embodiment of the present invention. A water shield nozzle 1 that locally removes water and a solid partition wall 4 that shields water from the outer periphery thereof are provided, and these can be moved independently. A second nozzle having a mechanism to be pressed against the surface of the solid partition wall and for removing and shielding water from the outer periphery of the solid partition wall 4, that is, a nozzle for pressurizing the solid partition wall 1
It is a processing device equipped with 0. The skirt 11 of the solid partition wall 4 is constantly pressed against the surface of the work piece by compressed air or compressed gas or jet water (all described as 12), and is in stable contact with the surface of the work piece. Therefore, it is possible to stably remove water while moving according to the surface shape of the processed member. Therefore, even a processed member having a complicated shape can be stably welded in water. Solid partition walls are made of carbon fiber and have a thickness of 0.5 m
It is made by stacking 10 sheets of m-sized cloth in a trapezoidal shape. Ar gas was used as the shield gas.

【0031】(実施例2)本発明をレーザー熱源により
原子炉装置機器の部材表面を加熱処理する表面改質に適
用した実施例を具体的に説明する。図2に本実施例で使
用したレーザー光13とその加工用のレンズ14並びに
水シールド用ノズル1の構造を示す。図2に示すよう
に、水を排除するための第1の水シールド用ノズル1の
内部には、表面改質用のレーザー加工用レンズ14が配
置され、これらが一体になっている。この場合の加工部
分を外気から保護するためのシールドガスは加工用のガ
ス吸入管15によって吸入される。
(Embodiment 2) An embodiment in which the present invention is applied to surface modification in which the surface of a member of a nuclear reactor device is heated by a laser heat source will be specifically described. FIG. 2 shows the structures of the laser light 13 used in this embodiment, the lens 14 for processing the same, and the water shield nozzle 1. As shown in FIG. 2, a laser processing lens 14 for surface modification is arranged inside the first water shield nozzle 1 for removing water, and these are integrated. In this case, the shielding gas for protecting the processed portion from the outside air is sucked by the gas suction pipe 15 for processing.

【0032】なお、水シールド用ノズル1の外側には水
を遮蔽するための固体隔壁4が配置されている。この固
体隔壁4は加圧バネ5及び固体隔壁の裾部加圧バネ16
によって被表面改質部材表面17に押し付けられる機構
を有している。ここで、第1の水シールド用ノズル1と
固体隔壁4は、前記、水シールド用ノズルの軸方向に対
して、単独に移動する構造になっている。これによっ
て、次に述べるように、水中での加工と水のシールドが
容易となり、品質の高い水中での表面改質が可能とな
る。
A solid partition wall 4 for blocking water is arranged outside the water shield nozzle 1. The solid partition wall 4 includes a pressure spring 5 and a bottom wall pressure spring 16 of the solid partition wall.
It has a mechanism to be pressed against the surface 17 of the surface-modified member. Here, the first water shield nozzle 1 and the solid partition wall 4 are structured to move independently in the axial direction of the water shield nozzle. This facilitates underwater processing and water shielding, as described below, and enables high-quality underwater surface modification.

【0033】例えば、レーザー熱源により水中で表面改
質や熱処理を行う場合、被表面改質部材表面17に対す
るビーム光の焦点距離及びノズル高さを一定に保つこと
が重要である。本装置には、被表面改質部材表面17に
対するビーム光の焦点距離及びノズル高さを一定に制御
できる装置が備えられている。ここで、前記加工レンズ
14と一体となっている第1の水シールド用ノズル1は
固体隔壁4と単独に移動する。このため、水シールド用
の第1のノズルが上下に移動した場合でも、固体隔壁4
は被表面改質部材表面17に接触した状態で、水シール
ド用ノズル1だけが上下に移動できる。従って、加工部
への水の浸入が固体隔壁4によって阻止され、安定した
溶接が可能となる。
For example, when performing surface modification or heat treatment in water with a laser heat source, it is important to keep the focal length of the beam light with respect to the surface-modified member surface 17 and the nozzle height constant. This apparatus is provided with an apparatus capable of controlling the focal length of the beam light with respect to the surface 17 of the surface-modified member and the nozzle height to be constant. Here, the first water shield nozzle 1 integrated with the processing lens 14 moves independently of the solid partition wall 4. Therefore, even when the first nozzle for water shield moves up and down, the solid partition wall 4
While in contact with the surface-modified member surface 17, only the water shield nozzle 1 can move up and down. Therefore, infiltration of water into the processed part is blocked by the solid partition wall 4, and stable welding is possible.

【0034】なお、本実施例ではカーボン繊維からなる
固体隔壁を使用し、シールドガスにはHeガス18を用
いた。
In this example, a solid partition wall made of carbon fiber was used, and He gas 18 was used as the shield gas.

【0035】一方、両者の移動により母材表面との距離
が任意に調節できる。従って、開先形状および溶接姿勢
が変化した場合においても固体隔壁4を被表面改質部材
表面に十分に安定して接触できるため、水中下において
も安定した表面改質が可能となり、信頼性の高い表面改
質接部が得られる。
On the other hand, the distance from the surface of the base material can be arbitrarily adjusted by moving both. Therefore, even when the groove shape and the welding posture are changed, the solid partition wall 4 can be brought into contact with the surface of the surface-modified member sufficiently stably, so that stable surface modification is possible even under water, and reliability is improved. A high surface modified contact is obtained.

【0036】(実施例3)図3は本発明の水中溶接加工
装置を原子力プラント圧力容器内のシュラウド82へ適
用した例を示す。原子力プラントにおける炉内構造物は
多量の放射線が発せられている。このため、作業者の安
全を考慮して補修溶接は遠隔自動制御で行う必要があ
る。従って、水中溶接装置は、大気中(圧力容器の外あ
るいは水の影響の無い箇所)に設置された溶接電源85
より電力を供給し、制御装置86により任意の溶接条件
を与え、ケーブル87を通じ水中に設置された水シール
ドノズル88内の溶接トーチ89からアークを発して溶
接を行う。
(Embodiment 3) FIG. 3 shows an example in which the underwater welding apparatus of the present invention is applied to a shroud 82 in a pressure vessel of a nuclear power plant. A large amount of radiation is emitted to the internal structure of a nuclear power plant. Therefore, repair welding must be performed by remote automatic control in consideration of worker safety. Therefore, the underwater welding apparatus is equipped with a welding power source 85 installed in the atmosphere (outside the pressure vessel or at a place where there is no influence of water).
More electric power is supplied, an arbitrary welding condition is given by the control device 86, and an arc is emitted from the welding torch 89 in the water shield nozzle 88 installed in the water through the cable 87 to perform welding.

【0037】図4に本実施例で使用した水シールドノズ
ル88の詳細構造を示す。
FIG. 4 shows the detailed structure of the water shield nozzle 88 used in this embodiment.

【0038】図4に示すように、水を排除するための水
シールドノズル88の内部にはシールド内から水を排除
するための水シールド用ノズル1とTIG溶接用のタン
グステン電極2が配置され、該水シールド用ノズル1と
一体になっている。なお、該水シールド用ノズル1から
はシールド内の水を排出するため、高速気流のガス3が
噴出される。該高速気流のガス3は加工部分を外気から
保護するためのシールドの効果も有している。
As shown in FIG. 4, a water shield nozzle 1 for removing water from the shield and a tungsten electrode 2 for TIG welding are arranged inside the water shield nozzle 88 for removing water. It is integrated with the water shield nozzle 1. Since the water in the shield is discharged from the water shield nozzle 1, a high-speed gas 3 is ejected. The gas 3 of the high-speed airflow also has a shielding effect for protecting the processed portion from the outside air.

【0039】一方、該水シールド用ノズル1の外側には
水を遮蔽するための固体隔壁4及び4aが二重に配置さ
れている。ここで、該水シールド用ノズル1と固体隔壁
4aは、該水シールド用ノズル1の軸方向に対して、加
圧バネ5によって単独に移動する構造になっている。こ
れによって、次に述べるように、水中での加工と水のシ
ールドが容易となり、品質の高い水中での加工が可能と
なる。
On the other hand, outside the water shield nozzle 1, solid partition walls 4 and 4a for shielding water are doubly arranged. Here, the water shield nozzle 1 and the solid partition wall 4a are configured to move independently by a pressure spring 5 in the axial direction of the water shield nozzle 1. This facilitates underwater processing and water shielding, as described below, and enables high-quality underwater processing.

【0040】例えば、TIG溶接法によって水中で溶接
や表面処理を行う場合、溶接の開始の際、アーク7を発
生させるため、タングステン電極2の先端を被加工部材
表面6に接触させ、アークの発生と同時に再度、基の位
置に戻る必要がある。ここで、前記、タングステン電極
2と一体となっている該水シールド用ノズル1は固体隔
壁4aと単独に移動する。このため、該水シールド用ノ
ズル1が上下に移動した場合でも、固体隔壁4及び4a
は被加工部材表面6に接触した状態で、該水シールド用
ノズル1だけが上下に移動できる。従って、加工部への
水の浸入が固体隔壁4aによって阻止され、安定した溶
接が可能となる。また、開先形状および溶接姿勢が変化
した場合においても固体隔壁4及び4aを被加工部材表
面6に十分に安定して接触できるため、水中下において
も安定した溶接が可能となり、信頼性の高い溶接部が得
られる。
For example, when performing welding or surface treatment in water by the TIG welding method, in order to generate an arc 7 at the start of welding, the tip of the tungsten electrode 2 is brought into contact with the surface 6 of the member to be processed, and the arc is generated. At the same time, it is necessary to return to the original position again. Here, the water shield nozzle 1 integrated with the tungsten electrode 2 moves independently of the solid partition wall 4a. Therefore, even when the water shield nozzle 1 moves up and down, the solid partition walls 4 and 4a are
While in contact with the surface 6 of the member to be processed, only the water shield nozzle 1 can move up and down. Therefore, infiltration of water into the processed portion is blocked by the solid partition wall 4a, and stable welding is possible. Further, even when the groove shape and the welding posture are changed, the solid partition walls 4 and 4a can be brought into contact with the surface 6 of the member to be processed in a sufficiently stable manner, so that stable welding is possible even under water, and the reliability is high. A weld is obtained.

【0041】なお、固体隔壁は、弾力性と可撓性に富む
材質が望ましい。本実施例では、耐熱ガラスクロスの両
面にシリコンゴムをコーティングしたフェルト状のもの
を用いた。ここで、固体隔壁4aは前記材質からなる厚
さ0.5mm のフェルト状のものを円錐形のスカート状に
して製作した。また、固体隔壁4aは該フエルトのもの
を幅3〜5mmの短冊状に切断して、これを2〜10枚重
ねて円錐形のスカート状にして製作した。これによっ
て、ノズル全体がフレキシブルとなり、スプリング作用
が有効に作用する。
The solid partition wall is preferably made of a material having high elasticity and flexibility. In this example, a felt-shaped glass cloth having both sides coated with silicone rubber was used. Here, the solid partition wall 4a was manufactured by forming a felt-like one having a thickness of 0.5 mm and made of the above-mentioned material into a conical skirt shape. The solid partition wall 4a was manufactured by cutting the felt partition into strips each having a width of 3 to 5 mm and stacking 2 to 10 of the strips to form a conical skirt. As a result, the entire nozzle becomes flexible, and the spring action works effectively.

【0042】本実施例では、シールド用ガス3にArガ
スを用いた。この場合の流量は30l/min である。
In this example, Ar gas was used as the shielding gas 3. The flow rate in this case is 30 l / min.

【0043】上記、実施例はTIG溶接にかぎらず、M
IG溶接,レーザ溶接,レーザ表面改質,レーザ切断な
どにも適用できる。本実施例によって原子炉内での水中
溶接が可能となる。
The above embodiment is not limited to TIG welding, but M
It can also be applied to IG welding, laser welding, laser surface modification, laser cutting, etc. This embodiment enables underwater welding in a nuclear reactor.

【0044】(実施例4)図5に示す実施例では更に複
雑形状の加工部材でも常に水を安定した状態で遮蔽でき
る水シールド用ノズルの構造を示す。局部的に水を排除
するための水シールド用ノズル1と更にその外周部に水
を遮蔽する固体隔壁4及び4aを備えた構造である。こ
こで、該水シールド用ノズル1と固体隔壁4及び4aは
加圧バネ5によって単独に移動が可能であることが特徴
である。これによって、実施例3で述べたように、水中
での加工と水のシールドが容易となり、品質の高い水中
での加工が可能となる。さらに、外側の固体隔壁4aは
加圧バネ5aによって被加工部材表面6の表面に押し付
けられる機構を有している。これによって、該固体隔壁
4aは被加工部材表面6に常に安定して接触するため、
シールド内への水の浸入を防止できる。
(Embodiment 4) The embodiment shown in FIG. 5 shows a structure of a water shield nozzle capable of always shielding water in a stable state even with a more complicated processed member. This is a structure in which a water shield nozzle 1 for locally eliminating water and solid partition walls 4 and 4a for shielding water are further provided on the outer peripheral portion thereof. Here, the water shield nozzle 1 and the solid partition walls 4 and 4a are characterized in that they can be independently moved by a pressure spring 5. As a result, as described in the third embodiment, the processing in water and the shielding of water become easy, and the processing in water of high quality becomes possible. Further, the outer solid partition wall 4a has a mechanism that is pressed against the surface of the member 6 to be processed by the pressure spring 5a. As a result, the solid partition wall 4a always comes into stable contact with the workpiece surface 6,
Water can be prevented from entering the shield.

【0045】なお、本実施例で用いた固体隔壁は、実施
例4と同様である。
The solid partition used in this example is the same as that in Example 4.

【0046】また、本実施例では、シールド用ガス3に
Arガスを用いた。この場合の流量は50l/min であ
る。このガスは加工部分を外気から保護するためのシー
ルドの効果も有している。
In this embodiment, Ar gas is used as the shielding gas 3. The flow rate in this case is 50 l / min. This gas also has a shielding effect for protecting the processed part from the outside air.

【0047】上記、実施例はTIG溶接にかぎらず、M
IG溶接,レーザ溶接,レーザ表面改質,レーザ切断な
どにも適用できる。本実施例によって原子炉内での水中
溶接が可能となった。
The above embodiment is not limited to TIG welding, but M
It can also be applied to IG welding, laser welding, laser surface modification, laser cutting, etc. This example enables underwater welding in a nuclear reactor.

【0048】[0048]

【発明の効果】本発明によれば、高圧水中下においても
加工において、加工に適した雰囲気を安定に維持でき
る。従って、加工の姿勢や加工形状が変化した場合でも
信頼性の高い加工が可能となる。このため、本加工装置
を原子力装置の炉内機器や船舶の溶接や切断,熱処理な
どに適用した場合でも信頼性の高い加工部が得られる。
According to the present invention, an atmosphere suitable for processing can be stably maintained even during processing under high pressure water. Therefore, it is possible to perform highly reliable machining even when the machining posture or machining shape changes. Therefore, even when the present processing apparatus is applied to welding, cutting, heat treatment, etc. of in-core equipment of nuclear power plants and ships, a highly reliable processing section can be obtained.

【図面の簡単な説明】[Brief description of drawings]

【図1】弾性体と第2のノズルを併用した局部シールド
用水中TIG溶接装置を示す概略図。
FIG. 1 is a schematic view showing an underwater TIG welding apparatus for a local shield, which uses an elastic body and a second nozzle together.

【図2】固体隔壁裾部を弾性体で押圧した局部シールド
用水中レーザー加工機を示す概略図。
FIG. 2 is a schematic view showing an underwater laser processing machine for a local shield in which a bottom of a solid partition is pressed by an elastic body.

【図3】本発明の水中加工装置を原子力プラント圧力容
器の補修加工に適用した例を示す図。
FIG. 3 is a diagram showing an example in which the underwater processing apparatus of the present invention is applied to repair processing of a nuclear power plant pressure vessel.

【図4】固体隔壁を2層設けた局部シールド用水中レー
ザー加工機を示す概略図。
FIG. 4 is a schematic view showing an underwater laser processing machine for local shield in which two layers of solid partition walls are provided.

【図5】固体隔壁を2層設け、外側の固体隔壁裾部を弾
性体で押圧した局部シールド用水中レーザー加工機を示
す概略図。
FIG. 5 is a schematic view showing an underwater laser processing machine for a local shield in which two layers of solid partition walls are provided and an outer solid partition wall skirt is pressed by an elastic body.

【符号の説明】[Explanation of symbols]

1…水シールド用ノズル、2…タングステン電極、3…
シールド用ガス、4…固体隔壁、5…加圧バネ、6…被
加工部材表面、7…アーク、8…固体隔壁加圧調整ガイ
ド、9…固体隔壁取付け部材、10…固体隔壁加圧用ノ
ズル、11…固体隔壁の裾部、12…圧縮空気又は圧縮
ガスあるいは噴流水、13…レーザー光、14…加工レ
ンズ、15…ガス吸入管、16…固体隔壁裾部加圧バ
ネ、17…被表面改質部材表面、18…Heガス、82
…原子力プラント圧力容器内のシュラウド、85…大気
中(圧力容器の外あるいは水の影響の無い箇所)に設置
された水中溶接装置の溶接電源、86…制御装置、87
…ケーブル、88…水中に設置された水シールドノズ
ル、89…溶接トーチ。
1 ... Water shield nozzle, 2 ... Tungsten electrode, 3 ...
Shielding gas, 4 ... Solid partition wall, 5 ... Pressure spring, 6 ... Workpiece member surface, 7 ... Arc, 8 ... Solid partition wall pressure adjusting guide, 9 ... Solid partition wall mounting member, 10 ... Solid partition wall pressure nozzle, 11 ... Solid partition hem, 12 ... Compressed air or compressed gas or jet water, 13 ... Laser light, 14 ... Processing lens, 15 ... Gas suction pipe, 16 ... Solid partition hem pressure spring, 17 ... Surface modification Material surface, 18 ... He gas, 82
... Shroud in the nuclear power plant pressure vessel, 85 ... Welding power source for underwater welding equipment installed in the atmosphere (outside the pressure vessel or at a location where there is no influence of water), 86 ... Control equipment, 87
… Cable, 88… Water shield nozzle installed in water, 89… Welding torch.

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 FI 技術表示箇所 B23K 26/12 26/14 Z 37/00 A ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Office reference number FI technical display location B23K 26/12 26/14 Z 37/00 A

Claims (11)

【特許請求の範囲】[Claims] 【請求項1】水中で水を局部的に排除しながら被加工物
を加工する加工機を備えた水中加工装置において、 高速気流を噴出し局部的に水を排除するための高速気流
放出ノズルと、 該ノズルの外周部に前記ノズル内の気密性を保持できる
形状の可撓性を有する固体隔壁を、少なくとも2層以上
備えていることを特徴とする水中加工装置。
1. A high-speed airflow discharge nozzle for ejecting a high-speed airflow to locally remove water in an underwater processing apparatus equipped with a processing machine for processing a workpiece while locally removing water in water. An underwater processing apparatus characterized by comprising at least two layers of flexible solid partition walls having a shape capable of maintaining airtightness inside the nozzle, on an outer peripheral portion of the nozzle.
【請求項2】水中で水を局部的に排除しながら被加工物
を加工する加工機を備えた水中加工装置において、 高速気流を噴出し局部的に水を排除するための第1のノ
ズルと、 前記第1のノズル内の気密性を保持できるような形状の
可撓性を有する固体隔壁を前記第1のノズルの外周部に
少なくとも1層備え、 更に、前記固体隔壁の裾部を該固体隔壁の外周部から被
加工物の表面に押圧するための機構を備えることを特徴
とする水中加工装置。
2. An underwater processing apparatus equipped with a processing machine for processing a workpiece while locally removing water in water, comprising: a first nozzle for ejecting a high-speed air current to locally remove water. At least one layer of a flexible solid partition having a shape capable of maintaining airtightness in the first nozzle is provided on an outer peripheral portion of the first nozzle, and a hem portion of the solid partition is formed by the solid partition. An underwater processing apparatus comprising a mechanism for pressing from the outer peripheral portion of the partition wall to the surface of the workpiece.
【請求項3】水中で水を局部的に排除しながら被加工物
を加工する加工機を備えた水中加工装置において、 高速気流を噴出し局部的に水を排除するための第1のノ
ズルと、 前記第1のノズル内の気密性を保持できるような形状の
可撓性を有する固体隔壁を前記第1のノズルの外周部に
少なくとも1層備え、 更に、高速流体を噴出し、前記固体隔壁の裾部を被加工
物の表面に押圧するための第2のノズルを該固体隔壁の
外周部に備えることを特徴とする水中加工装置。
3. An underwater processing apparatus equipped with a processing machine for processing a workpiece while locally removing water in water, comprising: a first nozzle for ejecting a high-speed air stream to locally remove water. At least one layer of a flexible solid partition having a shape capable of maintaining airtightness in the first nozzle is provided on an outer peripheral portion of the first nozzle, and a high-speed fluid is jetted to form the solid partition. An underwater processing apparatus characterized in that a second nozzle for pressing the hem of the hem against the surface of the workpiece is provided on the outer peripheral portion of the solid partition wall.
【請求項4】水中で水を局部的に排除しながら被加工物
を加工する加工機を備えた水中加工装置において、 高速気流を噴出し局部的に水を排除するための第1のノ
ズルと、 前記第1のノズル内の気密性を保持できるような形状の
可撓性を有する固体隔壁を前記第1のノズルの外周部に
少なくとも1層備え、 更に、高速流体を噴出し、前記固体隔壁の裾部を被加工
物の表面に押圧するための第2のノズルを該固体隔壁の
外周部に備え、 更に、前記固体隔壁を被加工物の表面に弾性体を用いて
押圧することを特徴とする水中加工装置。
4. An underwater processing apparatus equipped with a processing machine for processing a workpiece while locally removing water in water, comprising: a first nozzle for ejecting a high-speed air current to locally remove water. At least one layer of a flexible solid partition having a shape capable of maintaining airtightness in the first nozzle is provided on an outer peripheral portion of the first nozzle, and a high-speed fluid is jetted to form the solid partition. A second nozzle for pressing the bottom of the solid partition wall against the surface of the workpiece, and further pressing the solid partition wall against the surface of the workpiece using an elastic body. Underwater processing equipment to be.
【請求項5】水中で水を局部的に排除しながら被加工物
を加工する加工機を備えた水中加工装置において、 高速気流を噴出し局部的に水を排除するための第1のノ
ズルと、 前記第1のノズル内の気密性を保持できるような形状の
可撓性を有する固体隔壁を前記第1のノズルの外周部に
少なくとも1層備え、 更に、前記固体隔壁の裾部を該固体隔壁の外周部から被
加工物の表面に弾性体を用いて押圧することを特徴とす
る水中加工装置。
5. An underwater processing apparatus equipped with a processing machine for processing a workpiece while locally removing water in water, comprising: a first nozzle for ejecting a high-speed air current to locally remove water. At least one layer of a flexible solid partition having a shape capable of maintaining airtightness in the first nozzle is provided on an outer peripheral portion of the first nozzle, and a hem portion of the solid partition is formed by the solid partition. An underwater processing apparatus characterized in that an outer peripheral portion of a partition wall is pressed against the surface of a workpiece by using an elastic body.
【請求項6】請求項1〜5のいずれかに記載の水中加工
装置において、 前記第1のノズルと固体隔壁は、それぞれ独立に移動で
きることを特徴とする水中加工装置。
6. The underwater processing apparatus according to claim 1, wherein the first nozzle and the solid partition can be moved independently of each other.
【請求項7】請求項3〜4のいずれかに記載の水中加工
装置において、 前記高速流体は空気,不活性ガス,水のいずれかである
ことを特徴とする水中加工装置。
7. The underwater processing apparatus according to claim 3, wherein the high-speed fluid is any one of air, inert gas, and water.
【請求項8】請求項1〜7のいずれかに記載の水中加工
装置において、 前記可撓性を有する固体隔壁は炭素繊維,シリコンウー
ル,ガラス繊維,セラミック繊維の群から選ばれた1種
以上の繊維から作製された布を加工したものからなるこ
とを特徴とする水中加工装置。
8. The underwater processing apparatus according to claim 1, wherein the flexible solid partition wall is one or more selected from the group consisting of carbon fiber, silicon wool, glass fiber and ceramic fiber. An underwater processing apparatus, which is formed by processing a cloth made from the above fibers.
【請求項9】請求項1〜8のいずれかに記載の水中加工
装置において、 前記第1のノズル内に雰囲気を感知するセンサーを備
え、 該センサーからの信号によって、前記固体隔壁の裾部を
被加工物の表面に押圧する押圧力を制御する機構を備え
ることを特徴とする水中加工装置。
9. The underwater processing apparatus according to claim 1, further comprising a sensor that senses an atmosphere in the first nozzle, and a hem of the solid partition wall is formed by a signal from the sensor. An underwater processing apparatus comprising a mechanism for controlling a pressing force applied to the surface of a workpiece.
【請求項10】請求項1〜8のいずれかに記載の水中加
工装置において、 前記加工機はアーク溶接機であることを特徴とする水中
加工装置。
10. The underwater processing apparatus according to claim 1, wherein the processing machine is an arc welding machine.
【請求項11】請求項1〜8のいずれかに記載の水中加
工装置において、 前記加工機はレーザー加工機であることを特徴とする水
中加工装置。
11. The underwater processing apparatus according to claim 1, wherein the processing machine is a laser processing machine.
JP6135325A 1994-06-17 1994-06-17 Underwater processing equipment Expired - Fee Related JP3006412B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6135325A JP3006412B2 (en) 1994-06-17 1994-06-17 Underwater processing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6135325A JP3006412B2 (en) 1994-06-17 1994-06-17 Underwater processing equipment

Publications (2)

Publication Number Publication Date
JPH081326A true JPH081326A (en) 1996-01-09
JP3006412B2 JP3006412B2 (en) 2000-02-07

Family

ID=15149127

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Link
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996038258A1 (en) * 1995-05-30 1996-12-05 Gkss-Forschungszentrum Geesthacht Gmbh Device for welding and/or treating workpieces by means of laser light in water
EP1122018A3 (en) * 2000-02-07 2003-04-02 Hitachi, Ltd. Unterwater processing device and underwater processing method
WO2008072367A1 (en) * 2006-12-11 2008-06-19 Uragami Fukashi Device capable of moving while being in intimate contact with surface of object present in liquid
WO2008065742A3 (en) * 2006-11-16 2008-07-31 Uragami Fukashi Device closely contacting object surface and movable
JP4446034B1 (en) * 2009-02-04 2010-04-07 高森 悟 Underwater maintenance equipment for ship propellers
WO2010017446A3 (en) * 2008-08-07 2010-05-14 Nelson Stud Welding, Inc. Sealed and pressurized gun for underwater welding
KR101310600B1 (en) * 2006-12-20 2013-09-23 재단법인 포항산업과학연구원 Apparatus of portable laser for cutting &welding
JP2015193033A (en) * 2014-03-28 2015-11-05 日立Geニュークリア・エナジー株式会社 Laser equipment, in-reactor instrument in boiling-water nuclear power plant using the same, and fuel debris cutting or chipping method
JP2015231629A (en) * 2014-06-09 2015-12-24 株式会社Ihi Laser weld device and laser weld method
JP2017109233A (en) * 2015-12-18 2017-06-22 三菱重工業株式会社 Processing nozzle and processing device
JP2017113804A (en) * 2015-12-18 2017-06-29 三菱重工業株式会社 Nozzle for processing and processing device
KR20200071515A (en) * 2018-12-11 2020-06-19 삼성중공업 주식회사 Apparatus for preventing an scattering of welding spatter

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996038258A1 (en) * 1995-05-30 1996-12-05 Gkss-Forschungszentrum Geesthacht Gmbh Device for welding and/or treating workpieces by means of laser light in water
EP1122018A3 (en) * 2000-02-07 2003-04-02 Hitachi, Ltd. Unterwater processing device and underwater processing method
WO2008065742A3 (en) * 2006-11-16 2008-07-31 Uragami Fukashi Device closely contacting object surface and movable
WO2008072367A1 (en) * 2006-12-11 2008-06-19 Uragami Fukashi Device capable of moving while being in intimate contact with surface of object present in liquid
KR101310600B1 (en) * 2006-12-20 2013-09-23 재단법인 포항산업과학연구원 Apparatus of portable laser for cutting &welding
WO2010017446A3 (en) * 2008-08-07 2010-05-14 Nelson Stud Welding, Inc. Sealed and pressurized gun for underwater welding
WO2010090096A1 (en) * 2009-02-04 2010-08-12 Takamori Satoru Underwater maintenance device
JP2010201609A (en) * 2009-02-04 2010-09-16 Satoru Takamori Underwater maintenance facility for ship propeller
JP4446034B1 (en) * 2009-02-04 2010-04-07 高森 悟 Underwater maintenance equipment for ship propellers
JP2015193033A (en) * 2014-03-28 2015-11-05 日立Geニュークリア・エナジー株式会社 Laser equipment, in-reactor instrument in boiling-water nuclear power plant using the same, and fuel debris cutting or chipping method
JP2015231629A (en) * 2014-06-09 2015-12-24 株式会社Ihi Laser weld device and laser weld method
JP2017109233A (en) * 2015-12-18 2017-06-22 三菱重工業株式会社 Processing nozzle and processing device
JP2017113804A (en) * 2015-12-18 2017-06-29 三菱重工業株式会社 Nozzle for processing and processing device
KR20200071515A (en) * 2018-12-11 2020-06-19 삼성중공업 주식회사 Apparatus for preventing an scattering of welding spatter

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