JPH0369038B2 - - Google Patents
Info
- Publication number
- JPH0369038B2 JPH0369038B2 JP59139248A JP13924884A JPH0369038B2 JP H0369038 B2 JPH0369038 B2 JP H0369038B2 JP 59139248 A JP59139248 A JP 59139248A JP 13924884 A JP13924884 A JP 13924884A JP H0369038 B2 JPH0369038 B2 JP H0369038B2
- Authority
- JP
- Japan
- Prior art keywords
- freezing
- conduit
- jaws
- tongs
- lever structure
- 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.)
- Expired - Lifetime
Links
- 230000008014 freezing Effects 0.000 claims description 31
- 238000007710 freezing Methods 0.000 claims description 31
- 239000003507 refrigerant Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 210000003128 head Anatomy 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 230000001154 acute effect Effects 0.000 claims 2
- 239000007769 metal material Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C13/00—Pressure vessels; Containment vessels; Containment in general
- G21C13/02—Details
- G21C13/028—Seals, e.g. for pressure vessels or containment vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow in pipes or hoses
- F16L55/103—Means for stopping flow in pipes or hoses by temporarily freezing liquid sections in the pipe
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F7/00—Shielded cells or rooms
- G21F7/06—Structural combination with remotely-controlled apparatus, e.g. with manipulators
- G21F7/068—Remotely manipulating devices for fluids
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Description
【発明の詳細な説明】
産業上の利用分野：
本発明は導管を中心に旋回しうる互いに蝶番を
介して結合した２つのジヨーを備えるトング状ヘ
ツドを有し、ジヨーの中にそれぞれ液体冷媒を流
しうる中空室が形成され、その出口が雰囲気と結
合している原子力工業装置の媒体が流れる導管の
凍結装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application: The present invention has a tong-shaped head with two hinged joints that can pivot about a conduit, each carrying a liquid refrigerant into the jaws. The present invention relates to a freezing device for a medium-flowing conduit of a nuclear industrial installation, in which a flowable hollow chamber is formed, the outlet of which is connected to the atmosphere.
原子力工業装置内の保守の際、導管の一部を交
換修理する必要が生ずる。管分離の際、切断部付
近の媒体が流れる導管を凍結させなければならな
い。凍結プラグの近くで導管を切断することがで
きる。凍結プラグはシール要素として役立つ。 During maintenance within nuclear industrial equipment, it becomes necessary to replace or repair some of the conduits. During tube separation, the conduit through which the medium flows near the cut must be frozen. The conduit can be cut near the freeze plug. The freezing plug serves as a sealing element.
従来の技術：
放射性に汚染した導管の結合を解除するため、
導管の結合部に注型コンパウンドを充てんするこ
とは公知である（西独特許第1237707号明細書参
照）。この注型コンパウンドは凝固して閉鎖プラ
グを形成し、このプラグは放射性残留粒子を結合
し、導管分離のためその結合部で切断することが
できる。Conventional technology: To uncouple radioactively contaminated conduits,
It is known to fill the joints of conduits with a casting compound (see German Patent No. 1,237,707). The casting compound solidifies to form a closure plug that binds the residual radioactive particles and can be cut at the junction for conduit separation.
媒体が流れる導管の凍結装置は多数公知であ
る。このような装置はしばしば凍結トングと称さ
れる。西独特許第2330807号明細書によりリング
部材を有する握りからなるこのような装置が公知
であり、この部材の中にガスを発生する圧縮液体
源から入口および出口を介して冷媒を流しうるリ
ング室が形成されている。リング室の外壁および
側壁は１体のゴム弾性材料からなる。壁は導管と
平行に走るスリツトを有し、導管はこのスリツト
によつて壁を拡げながらリング室を形成するゴム
体へ導入することができる。リング室を有する全
リング部材は凍結すべき導管を密に包囲するため
の自己支持性ゴム体として形成される。リング室
の出口は大気と結合している。 Numerous devices for freezing conduits through which a medium flows are known. Such devices are often referred to as freezing tongs. From German Patent No. 2 330 807, such a device is known consisting of a handle with a ring member, into which a ring chamber is provided through which a refrigerant can flow via an inlet and an outlet from a source of compressed liquid generating gas. It is formed. The outer and side walls of the ring chamber are made of a single piece of rubber elastic material. The wall has a slit running parallel to the conduit, by means of which the conduit can be introduced into the rubber body forming the ring chamber while widening the wall. The entire ring element with the ring chamber is designed as a self-supporting rubber body for tightly surrounding the conduit to be frozen. The outlet of the ring chamber is connected to the atmosphere.
発明が解決しようとする問題点：
この装置はゴム製リング室が脆化しやすい欠点
を有する。さらに公知装置によれば一定距離の２
つの凍結部を迅速に順次製造する要求が十分充足
されない。これは約−196℃の低い凍結温度でゴ
ムが管に付着することから明らかである。Problems to be Solved by the Invention: This device has the disadvantage that the rubber ring chamber is susceptible to embrittlement. Furthermore, according to the known device, 2
The need for rapid sequential production of two frozen parts is not fully met. This is evident from the fact that the rubber adheres to the tube at low freezing temperatures of about -196°C.
西独特許第2330807号明細書に記載の装置のも
う１つの欠点はこの装置が原子力工業装置の導管
に遠隔操作でセツトするために適しないことにあ
る。しかし遠隔操作は原子力工業装置の放射性に
負荷された室またはセルに必要な前提である。 Another disadvantage of the device described in DE 23 30 807 is that it is not suitable for being installed remotely in the conduits of nuclear industrial installations. However, remote control is a necessary prerequisite for radioactively loaded rooms or cells of nuclear industrial equipment.
本発明の目的は原子力工業装置内で使用するた
めに適し、２つの凍結位置で媒体が流れる導管を
迅速確実に凍結させ、かつ簡単に操作しうるよう
に前記装置を形成することである。 The object of the invention is to form said device in such a way that it is suitable for use in nuclear industrial installations, allows rapid and reliable freezing of conduits through which the medium flows in two freezing positions, and is easy to operate.
問題点を解決するための手段：
この目的は本発明により特許請求の範囲第１項
記載の特徴によつて解決される。Means for solving the problem: This object is solved according to the invention by the features of patent claim 1.
装置を凍結すべき導管にセツトした後、２つの
ジヨーの室に液体冷媒が流される。２つのジヨー
の半径方向の孔を通して冷媒が管表面へ流れ、そ
こで蒸発する。交換すべき管の一部を表わす２つ
の凍結部を迅速に順次製造しうる高い凍結速度が
達成される。 After the device is installed in the conduit to be frozen, liquid refrigerant is flushed into the two chambers of the jaw. Through the radial holes in the two jaws, the refrigerant flows to the tube surface where it evaporates. A high freezing rate is achieved which allows the production of two frozen parts representing the part of the tube to be replaced in quick succession.
本発明の有利な形成は特許請求の範囲第２項記
載の特徴によつて達成される。多数の列に配置し
た半径方向の孔はそれぞれ１つの溝によつて互い
に結合される。それによつて冷媒と管表面の間の
最適の接触が達成される。 An advantageous development of the invention is achieved by the features of patent claim 2. The radial holes arranged in a number of rows are each connected to one another by a groove. Optimal contact between the refrigerant and the tube surface is thereby achieved.
トングを特許請求の範囲第３項記載の特徴によ
り形成すれば、凍結トングは凍結すべき導管へ容
易にセツトされる。 If the tongs are formed according to the features of claim 3, the freezing tongs can be easily set into the conduit to be frozen.
本発明のもう１つの有利な形成は特許請求の範
囲第４項記載の特徴によつて達成される。ジヨー
先端の充てんによりジヨー先端空間の液体冷媒に
よる不所望の充てんが避けられる。 Another advantageous development of the invention is achieved by the features of patent claim 4. Filling of the jaw tip avoids undesired filling of the jacket tip space with liquid refrigerant.
さらに本発明の有利な実施例が特許請求の範囲
第５〜８項に記載される。 Further advantageous embodiments of the invention are described in the patent claims 5-8.
実施例 次に図面により３つの実施例を説明する。Example Next, three embodiments will be explained with reference to the drawings.
第１図に示す凍結装置は遠隔操作の動力式マニ
ピユレータによつて掴みうる操作ブロツク７を有
する。操作ブロツク７の相対する２つの側面に２
つの結合板８が設置される。２つの結合板８は横
ウエブ９により互いに安定に結合される。結合板
８の自由端は２組のレバー１２，１３および結合
ピン１４の支持および回転中心１１を形成する。
２組のレバー１２，１３の自由端はそれぞれさら
に２組のレバー１７，１８の回転中心１５，１６
を形成する。回転中心１５，１６にそれぞれ結合
ピン１９，２１が配置される。２組のレバー１
７，１８の端部はトング状のジヨー２２，２３に
固定的に溶接される。この２つのジヨー２２，２
３は１端が蝶番２４により互いに結合される。 The freezing device shown in FIG. 1 has an operating block 7 which can be gripped by a remotely operated power manipulator. 2 on opposite sides of the operating block 7.
Two coupling plates 8 are installed. The two connecting plates 8 are stably connected to each other by transverse webs 9. The free end of the coupling plate 8 forms a center of support and rotation 11 for the two sets of levers 12, 13 and the coupling pin 14.
The free ends of the two sets of levers 12, 13 are the rotation centers 15, 16 of two further sets of levers 17, 18, respectively.
form. Coupling pins 19 and 21 are arranged at rotation centers 15 and 16, respectively. 2 sets of levers 1
The ends of 7 and 18 are fixedly welded to tongue-shaped jaws 22 and 23. These two Jiyo 22,2
3 are connected to each other at one end by a hinge 24.
この構造により操作ブロツク７およば結合板８
を介して管に支持された開いたジヨー２２，２３
へ矢印Ｂの方向に圧力をおよぼすと、ジヨー２
２，２３は閉鎖する。矢印Ｂの方向の装置圧力を
維持することによつて２組のレバー１２，１３は
２組の固定レバー１７，１８の回転中心１５，１
６を中心として支持中心１１の仮想水平線から蝶
番２４の方向へ動かされ、それによつて自動クラ
ンプ効果が発生する。この自動クランプ効果によ
つて２つのジヨー２２，２３は凍結すべき導管の
表面に最適に接触する。 This structure allows the operating block 7 and the coupling plate 8 to
Open jaws 22, 23 supported on the tube via
When pressure is applied to the direction of arrow B, Jiyo 2
2 and 23 will be closed. By maintaining the device pressure in the direction of arrow B, the two sets of levers 12, 13 move around the rotation centers 15, 1 of the two sets of fixed levers 17, 18.
6 from the imaginary horizontal line of the support center 11 in the direction of the hinge 24, thereby creating a self-clamping effect. This self-clamping effect ensures that the two jaws 22, 23 optimally contact the surface of the conduit to be frozen.
ジヨー２２，２３は中空であり、それぞれ半円
形リング室２５を形成する。このリング室２５は
ジヨー２２，２３の内面２６に設けた半径方向の
孔２７を介して雰囲気ろ結合する。孔２７および
軸方向に２つのジヨー内面２６に加工した溝２８
を介して液体冷媒とくにN2は接続口２９を介し
て貯蔵源からジヨー２２，２３へ入つた後、管表
面へ流れ、そこで蒸発する。 The jaws 22, 23 are hollow and each form a semicircular ring chamber 25. The ring chamber 25 is connected to the atmosphere through radial holes 27 provided in the inner surfaces 26 of the jaws 22, 23. Grooves 28 machined into the hole 27 and the two axially inner surfaces 26 of the jaws
The liquid refrigerant, in particular N 2 , enters the pipes 22, 23 from the storage source via the connection 29 and then flows to the tube surface where it evaporates.
凍結すべき導管内に凍結プラグが形成された
後、自動クランプ効果を消滅させるように矢印Ｂ
の方向の加圧力を上昇することによつてジヨー２
２，２３を開放する。凍結装置はただちに導管上
の次に凍結させる位置にセツトすることができ
る。 After a freezing plug is formed in the conduit to be frozen, press arrow B to extinguish the automatic clamping effect.
By increasing the pressure in the direction of
Open 2 and 23. The freezing device can be immediately set in the next freezing position on the conduit.
ジヨー２２，２３の両方の鋭角的に突出する下
部３１は凍結すべき管の直径を有する半径方向の
孔２７を備える内面２６まで金属３２とくに鉛が
充てんされ（第２図）、それによつてジヨー２２，
２３の先端に成形によつて発生した空間のN2に
よる不所望の充てんが避けられる。 The acutely projecting lower parts 31 of both the jaws 22, 23 are filled with metal 32, especially lead (FIG. 2), up to the inner surface 26 with radial holes 27 having the diameter of the tube to be frozen, thereby making it possible to 22,
Undesired filling of the space created by molding at the tip of 23 with N 2 is avoided.
第３図には蝶番４３によつて可動に結合された
２つのジヨー２２，４２が電動モータ４４および
スクリユースピンドル４５により適当な自動クラ
ンプ性に設定したレバー構造４６を介して開閉さ
れる凍結装置が示される。 FIG. 3 shows a freezing device in which two jaws 22, 42 movably connected by a hinge 43 are opened and closed by an electric motor 44 and a screw spindle 45 via a lever structure 46 which is set to have an appropriate automatic clamping property. is shown.
凍結トングは遠隔操作の動力形マニピユレータ
の図示されていない掴み装置と結合しうる操作ブ
ロツク４７を有する。２つの結合板４８を介して
操作ブロツクは側板４９と結合する。レバー構造
４６は可動のベアリング４３，５５，５６，５７
に支持された４組のレバー５１，５２，５３，５
４からなる（第５図参照）。側板４９の下端は２
つのジヨー４１，４２の蝶番４３に結合される。 The freezing tongs have an operating block 47 which can be connected to a gripping device (not shown) of a remotely operated motorized manipulator. The operating block is connected to a side plate 49 via two connecting plates 48. The lever structure 46 has movable bearings 43, 55, 56, 57.
Four sets of levers 51, 52, 53, 5 supported by
4 (see Figure 5). The lower end of the side plate 49 is 2
It is connected to the hinges 43 of the two jaws 41 and 42.
側板４９の間の操作ブロツク４７の下方にモー
タ４４が固定され、このモータはベアリング５８
に支持されかつモータ軸と結合するスクリユース
ピンドル４５を介してレバー構造４６のジヨー４
１，４２を作動する。凍結トングはモータ４４の
回転方向の変化によつて開放位置から閉鎖位置へ
運動することができる。モータ４４の電気的接続
ケーブルは５９で示される。 A motor 44 is fixed below the operating block 47 between the side plates 49, and this motor is mounted on a bearing 58.
The lever structure 46 is connected to the lever structure 46 via a screw spindle 45 supported by the motor shaft and connected to the motor shaft.
Activate 1,42. The freezing tongs can be moved from the open position to the closed position by changing the direction of rotation of the motor 44. The electrical connection cable of motor 44 is indicated at 59.
ジヨーの孔およびレバー伝導装置は凍結すべき
導管の直径に応じて導管上で最適のクランプ接触
が達成されるように設定される。ジヨー４１，４
２は液体冷媒N2を導入する接続口６０を有する。
ジヨー４１，４２内に設置した室はジヨー４１，
４２の内面６２の半径方向の孔６１を介して雰囲
気と結合する。 The hole in the jaw and the lever conductor are set to achieve optimal clamping contact on the conduit depending on the diameter of the conduit to be frozen. Jiyo 41,4
2 has a connection port 60 for introducing liquid refrigerant N2 .
The chambers installed in Jiyo 41, 42 are Jiyo 41,
It connects to the atmosphere through radial holes 61 in the inner surface 62 of 42.
電動モータ駆動凍結トングの改善された実施例
が第４図に示される。この実施例は操作のため遠
隔操作クレーンを備える。側板７１に支持フード
７２が支持され、その上面に支持アイ７３が配置
される。側板７１の下部範囲に４つの板状ブレー
ス７４が側板を包囲するように設置され、その１
表面に遠隔操作クレーンで操作するためのもう１
つの支持アイ７６が配置される。 An improved embodiment of an electric motor driven freezing tong is shown in FIG. This embodiment includes a remote operated crane for operation. A support hood 72 is supported by the side plate 71, and a support eye 73 is arranged on the upper surface of the support hood 72. Four plate-shaped braces 74 are installed in the lower range of the side plate 71 so as to surround the side plate, one of which is
Another one to operate with a remote controlled crane on the surface
Two support eyes 76 are arranged.
第５図には凍結トングが開放端部位置で示され
る。第６図はモータ駆動凍結トングの閉鎖位置を
示す。この２つの図からレバー構造の所要の運動
が明らかである。 In FIG. 5, the freezing tongs are shown in the open end position. FIG. 6 shows the motor-driven freezing tongs in the closed position. The required movement of the lever structure is clear from these two figures.
作用：
モータ駆動式の本発明の前記実施例の機能を次
に詳細に説明する。Operation: The function of the motor-driven embodiment of the invention will now be described in detail.
凍結トングは動力式マニピユレータの掴み工具
により操作ブロツク４７が掴まれ（第３図）、ま
たは遠隔操作クレーンにより支持アイ７３，７５
で吊られる（第４図）。凍結トングは開いた端部
位置（第５図）にあるものとする。凍結トングは
凍結すべき管８１へ動力式マニピユレータまたは
クレーンによりセツトされる。モータ４４により
これと結合したスクリユースピンドル４５が回転
され、中心支持点５５を備えるスピンドル端部部
材４５ａは下降する。それによつてレバー構造４
６は２組の上側レバー５１，５２が水平になり、
ジヨー４１，４２に固定された下側の２組のレバ
ー５３，５４を支持点５６，５７を介して外側へ
押すように運動する。第６図は凍結トングが完全
に閉鎖し、凍結すべき管８１を固くクランプした
端部位置を示す。 The freezing tongs are gripped by the operating block 47 by a gripping tool of a power-operated manipulator (Fig. 3), or by a remote-controlled crane.
(Figure 4). The freezing tongs shall be in the open end position (Figure 5). The freezing tongs are set onto the tube 81 to be frozen by a powered manipulator or crane. The screw spindle 45 connected thereto is rotated by the motor 44, and the spindle end piece 45a with the central support point 55 is lowered. Thereby lever structure 4
6, the two sets of upper levers 51 and 52 are horizontal,
The lower two sets of levers 53, 54 fixed to the jaws 41, 42 are moved outward via support points 56, 57. FIG. 6 shows the end position of the freezing tongs when they are completely closed and tightly clamping the tube 81 to be frozen.
ジヨー４１，４２が凍結すべき管の周囲で閉鎖
した後、２つの接続口６０を介して両方のジヨー
４１，４２の室に液体冷媒N2が供給される。２
つのジヨー４１，４２の内面６２の半径方向の孔
６１を介して液体冷媒N2は包囲する管表面へ流
れ、そこで蒸発する。きわめて短い時間内に−
196℃の温度が達成される。管温度の監視および
冷媒供給の遮断は公知法でここに図示されていな
い電磁弁により行われる。 After the jackets 41, 42 have closed around the tubes to be frozen, liquid refrigerant N 2 is supplied to the chambers of both jackets 41, 42 via the two connections 60. 2
Via the radial holes 61 in the inner surfaces 62 of the two jaws 41, 42, the liquid refrigerant N2 flows to the surrounding tube surface and evaporates there. within a very short time
A temperature of 196°C is achieved. Monitoring of the tube temperature and switching off of the refrigerant supply take place in a known manner by means of solenoid valves, not shown here.
管内に所望サイズの凍結プラグが形成した後、
凍結トングのジヨー４１，４２はモータ４４の回
転方向変換によつて開放される。この場合スクリ
ユースピンドル端部部材４５ａは上へ動く。可動
ベアリング回転中心５５はしたがつて上昇し、上
側の２組のレバー５１，５２を水平位置から引上
げる。下側の２組のレバー５３，５４へ可動ベア
リング５６，５７の支持点を介して、蝶番４３に
よつて形成される回転中心を中心に旋回力がおよ
ぼされ、それによつて２つのジヨー４１，４２が
開放する。下側の２組のレバー５３，５４の間に
開放端部位置を決定するストツプ部材８２が配置
される。凍結トングは開き、管の次の凍結すべき
位置へセツトすることができる。 After a frozen plug of the desired size is formed in the tube,
The jaws 41 and 42 of the freezing tongs are opened by changing the direction of rotation of the motor 44. In this case, the screw spindle end piece 45a moves upwards. The movable bearing rotation center 55 therefore rises and pulls up the upper two sets of levers 51, 52 from the horizontal position. A turning force is applied to the lower two sets of levers 53, 54 through the support points of the movable bearings 56, 57 around the center of rotation formed by the hinge 43, thereby causing the two sets of levers 53, 54 to , 42 are opened. A stop member 82 is arranged between the lower two sets of levers 53, 54 to determine the open end position. The freezing tongs can be opened and placed in the next position of the tube to be frozen.
第１図は機械的に操作する凍結装置の斜視図、
第２図はジヨー先端部の縦断面図、第３図および
第４図はさらに改善された凍結装置実施例の斜視
図、第５図は第３図および第４図に示す装置のレ
バー伝導機構を開放位置で示し、第６図はその閉
鎖位置を示す側面図である。
７，４７……操作ブロツク、８，４８……結合
板、１２，１３，１７，１８……レバー、１４…
…結合ピン、２２，２３，４１，４２……ジヨ
ー、２５……室、２６……内面、２７，６１……
半径方向の孔、２８……溝、２４，４３……蝶
番、４４……モータ、４５……スクリユースピン
ドル、４６……レバー構造、８１……導管。
Figure 1 is a perspective view of a mechanically operated freezing device;
FIG. 2 is a longitudinal sectional view of the tip of the jaw, FIGS. 3 and 4 are perspective views of a further improved embodiment of the freezing device, and FIG. 5 is the lever transmission mechanism of the device shown in FIGS. 3 and 4. is shown in an open position, and FIG. 6 is a side view showing its closed position. 7,47...Operation block, 8,48...Connecting plate, 12,13,17,18...Lever, 14...
...Connecting pin, 22, 23, 41, 42... Jiyo, 25... Chamber, 26... Inner surface, 27, 61...
Radial hole, 28...Groove, 24, 43...Hinge, 44...Motor, 45...Screw use spindle, 46...Lever structure, 81...Conduit.
Claims (1)
結合した２つのジヨーを備えるトング状ヘツドを
有し、ジヨーの内部にそれぞれ液体冷媒を流しう
る中空室が形成され、その出口が雰囲気と結合し
ている原子力工業装置の媒体が流れる導管の凍結
装置において、ジヨー２２，２３；４１，４２が
凍結すべき導管８１の直径に応じて湾曲し、その
内面に多数の半径方向の孔２７，６１を備え、こ
の孔を介して冷媒の流れうる室２５が雰囲気と結
合し、かつジヨー２２，２３；４１，４２が金属
材料からなることを特徴とする原子力工業装置の
媒体が流れる導管の凍結装置。 ２ 半径方向の孔２７，６１が多数の軸平行の列
に配置され、各列でそれぞれ軸方向に走る溝２８
によつて結合されている特許請求の範囲第１項記
載の装置。 ３ ジヨー２２，２３の先端部が鋭角的に形成さ
れている特許請求の範囲第１項記載の装置。 ４ ジヨー２２，２３の先端部が鋭角的に形成さ
れ、導管直径に応じて湾曲するジヨー２２，２３
の内面の下まで熱伝導度の高い金属３２が充てん
されている特許請求の範囲第１項または第２項記
載の装置。 ５ 凍結トングの半径方向の孔２７，６１を備え
るジヨー２２，２３が蝶番２４，４３を介して互
いに旋回可能に結合され、ジヨー２２，２３がレ
バー構造４６によつて旋回可能であり、レバー構
造が蝶番２４，４３より上方の共通の支持点１
１，５５を介して蝶番２４，４３と支持点１１，
５５の共通平面内で作用する力によつて負荷可能
である特許請求の範囲第１項記載の装置。 ６ 支持点１１が１組の結合板８と結合し、その
他端が遠隔操作機構により掴むために適当な操作
ブロツク７と結合している特許請求の範囲第５項
記載の装置。 ７ 凍結トングがレバー構造４６へ作用するよう
に配置したモータ駆動可能のスクリユースピンド
ル４５を備えている特許請求の範囲第５項または
第６項記載の装置。 ８ 側板４９がクレーンによる操作のための支持
アイ７３，７５を備えている特許請求の範囲第５
項または第６項記載の装置。[Scope of Claims] 1. It has a tongue-shaped head equipped with two joints that can be rotated around a conduit and are connected to each other via a hinge, each of which has a hollow chamber in which a liquid refrigerant can flow therein. In a freezing device for a conduit through which a medium of nuclear industrial equipment flows, the outlet of which is connected to the atmosphere, the pipes 22, 23; 41, 42 are curved according to the diameter of the conduit 81 to be frozen, and have a number of radial directions on their inner surface. A medium for nuclear industrial equipment is provided with holes 27, 61, through which a chamber 25 through which a refrigerant can flow is connected to the atmosphere, and the chambers 22, 23; 41, 42 are made of a metal material. Flowing conduit freezing device. 2. The radial holes 27, 61 are arranged in a number of axially parallel rows, each row having a groove 28 running in the axial direction.
Apparatus according to claim 1, which is combined by. 3. The device according to claim 1, wherein the tips of the jaws 22, 23 are formed at acute angles. 4. The tips of the jaws 22, 23 are formed at an acute angle and are curved according to the diameter of the conduit.
3. The device according to claim 1, wherein the metal 32 having high thermal conductivity is filled up to the bottom of the inner surface of the device. 5. The jaws 22, 23 with the radial holes 27, 61 of the freezing tongs are pivotably coupled to each other via hinges 24, 43, the jaws 22, 23 are pivotable by a lever structure 46, and the lever structure is the common support point 1 above the hinges 24 and 43
1, 55 to the hinges 24, 43 and the support point 11,
5. The device of claim 1, wherein the device is loadable by forces acting in a common plane of 55. 6. Device according to claim 5, in which the support points 11 are connected to a set of coupling plates 8 and the other end is connected to a suitable operating block 7 for gripping by a remote control mechanism. 7. Device according to claim 5 or 6, comprising a motor-driven screw spindle 45 arranged in such a way that the freezing tongs act on the lever structure 46. 8. The side plate 49 is provided with support eyes 73, 75 for operation by a crane.
The device according to paragraph 6 or paragraph 6.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3324292A DE3324292C2 (en) | 1983-07-06 | 1983-07-06 | Device for freezing a pipeline through which media flows in a nuclear facility |
| DE3324292.5 | 1983-07-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6037494A JPS6037494A (en) | 1985-02-26 |
| JPH0369038B2 true JPH0369038B2 (en) | 1991-10-30 |
Family
ID=6203252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59139248A Granted JPS6037494A (en) | 1983-07-06 | 1984-07-06 | Refrigerator for conduit through which medium flow of nuclear industry device |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS6037494A (en) |
| BE (1) | BE899839A (en) |
| BR (1) | BR8403359A (en) |
| DE (1) | DE3324292C2 (en) |
| FR (1) | FR2548757B1 (en) |
| GB (1) | GB2143936B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3527656A1 (en) * | 1985-08-01 | 1987-02-12 | Zinser Textilmaschinen Gmbh | FILTER BOX FOR FILTERING FIBERS, FLIGHT AND OTHER IMPURITIES FROM A TEXTILE MACHINE, ESPECIALLY SPINNING MACHINE, EXHAUSTED AIR |
| GB2206940B (en) * | 1987-06-22 | 1991-01-02 | Technotrend Limited | Apparatus and method for isolating a section of a pipe to make repairs |
| DE8715225U1 (en) * | 1987-11-17 | 1988-01-14 | Bantin, Horst | Device for externally applying refrigerant to a pipeline carrying freezing media |
| FR2728381A1 (en) * | 1994-12-19 | 1996-06-21 | Trm Sarl | Localised radiation shielding around pipe contg. radioactive fluid |
| CN105371048A (en) * | 2015-11-23 | 2016-03-02 | 佛山高富中石油燃料沥青有限责任公司 | Quick-mounting pressurizing blind disk |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR919082A (en) * | 1944-12-18 | 1947-02-26 | Freez Seal Equipment Company L | Method and device for forming a hollow plug of ice in a water pipe |
| DE1237707B (en) * | 1961-11-10 | 1967-03-30 | Kernforschung Mit Beschraenkte | Method and device for loosening connections in radioactively contaminated pipelines |
| FR1521628A (en) * | 1967-03-10 | 1968-04-19 | Pipe freezer | |
| GB1303058A (en) * | 1969-10-08 | 1973-01-17 | ||
| FR2232732A1 (en) * | 1973-06-08 | 1975-01-03 | Flomatic Corp | Device for freezing a medium flowing within a pipe - restricts supply of refrigerant to required zone |
| DE2330807C2 (en) * | 1973-06-16 | 1982-03-25 | Flomatic Corp., North Hoosick, N.Y. | Device for freezing a pipeline through which media flows |
| DE2552550C2 (en) * | 1975-11-22 | 1983-09-29 | Interatom Internationale Atomreaktorbau Gmbh, 5060 Bergisch Gladbach | Freezer seal with safety stuffing box |
| US4267699A (en) * | 1979-02-21 | 1981-05-19 | Bahrenburg Harry H | Freeze isolation seal |
| US4441328A (en) * | 1981-12-08 | 1984-04-10 | Brister, Incorporated | Method and apparatus for forming a temporary plug in a submarine conduit |
-
1983
- 1983-07-06 DE DE3324292A patent/DE3324292C2/en not_active Expired
-
1984
- 1984-06-06 BE BE0/213080A patent/BE899839A/en not_active IP Right Cessation
- 1984-06-13 FR FR8409209A patent/FR2548757B1/en not_active Expired
- 1984-07-03 GB GB08416893A patent/GB2143936B/en not_active Expired
- 1984-07-05 BR BR8403359A patent/BR8403359A/en not_active IP Right Cessation
- 1984-07-06 JP JP59139248A patent/JPS6037494A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| GB8416893D0 (en) | 1984-08-08 |
| DE3324292A1 (en) | 1985-01-24 |
| DE3324292C2 (en) | 1986-02-20 |
| JPS6037494A (en) | 1985-02-26 |
| BE899839A (en) | 1984-10-01 |
| GB2143936A (en) | 1985-02-20 |
| FR2548757B1 (en) | 1988-05-13 |
| FR2548757A1 (en) | 1985-01-11 |
| BR8403359A (en) | 1985-06-18 |
| GB2143936B (en) | 1986-10-29 |
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