JPH0650387Y2 - Defrosting of liquid preservation bottles for freezing - Google Patents
Defrosting of liquid preservation bottles for freezingInfo
- Publication number
- JPH0650387Y2 JPH0650387Y2 JP9925289U JP9925289U JPH0650387Y2 JP H0650387 Y2 JPH0650387 Y2 JP H0650387Y2 JP 9925289 U JP9925289 U JP 9925289U JP 9925289 U JP9925289 U JP 9925289U JP H0650387 Y2 JPH0650387 Y2 JP H0650387Y2
- Authority
- JP
- Japan
- Prior art keywords
- stick
- defrosting
- storage bottle
- freezing
- liquid nitrogen
- 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
- 239000007788 liquid Substances 0.000 title claims description 22
- 238000010257 thawing Methods 0.000 title claims description 9
- 238000007710 freezing Methods 0.000 title claims description 6
- 230000008014 freezing Effects 0.000 title claims description 6
- 238000004321 preservation Methods 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 26
- 229910052757 nitrogen Inorganic materials 0.000 description 13
- 239000003595 mist Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 241000319916 Microsaniinae Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Landscapes
- Packages (AREA)
Description
【考案の詳細な説明】 〔概要〕 液体窒素などを貯蔵する冷凍用液体保存ボトルに付設す
る霜とりアダプタに関し、 ステックから霜を容易に除去することを目的とし、 ステックが保存ボトル内部まで挿入でき、該ステックの
出し入れ時にステック表面と擦り合う摩擦チューブを中
央に位置させ、低部をボトル開口に嵌合できて、且つ、
該低部の周縁に水滴受け皿を設けたことを特徴とする。[Detailed Description of the Invention] [Overview] Regarding a defrost adapter attached to a liquid storage bottle for freezing that stores liquid nitrogen, etc., the stick can be inserted into the inside of the storage bottle for the purpose of easily removing frost from the stick. , A friction tube that rubs against the surface of the stick when the stick is taken in and out is located in the center, and the lower part can be fitted into the bottle opening, and
A water drop tray is provided on the periphery of the lower portion.
本考案は液体窒素などを貯蔵する冷凍用液体保存ボトル
に付設する霜とりアダプタに関する。The present invention relates to a defrost adapter attached to a freezing liquid storage bottle that stores liquid nitrogen or the like.
最近、液体窒素（LN2）は広範囲な用途をもつており、
例えば、液体窒素を空気中の雰囲気に曝して近傍の水分
を凝固させ、あたかも煙のように霧を発散させて空気の
流れ状態を観察する方法に用いられている。Recently, liquid nitrogen (LN 2 ) has a wide range of uses,
For example, it is used in a method of observing the flow state of air by exposing liquid nitrogen to the atmosphere in the air to solidify the moisture in the vicinity, and causing the fog to emanate as if it were smoke.
例えば、ICなどの半導体装置を製造する工場は清浄な雰
囲気が重要で、当初よりゴミの少ないクリーンルーム内
で生産しているが、常時、清浄な状態にクリーンルーム
を維持するためには、偏流のない適切な気流状態を絶え
ず形成しておく必要がある。もし偏流が起こると、誘引
現象を起こして周囲の汚染源が巻き込まれるからであ
る。For example, in a factory that manufactures semiconductor devices such as ICs, a clean atmosphere is important and they are produced in a clean room with less dust from the beginning, but there is no drift to maintain a clean room at all times. It is necessary to constantly create proper air flow conditions. This is because if drift occurs, it will induce a phenomenon of attraction and the surrounding pollution sources will be involved.
そこで、クリーンルーム内における空気の流れ状態を監
視するために、定期的に液体窒素で冷却したステックを
クリーンルームの雰囲気に曝して近傍の水分を凝固さ
せ、煙状の霧を生じさせて、その霧の流れから空気の流
れ状態（気流の状態）を可視化して観察する方法が採ら
れている。Therefore, in order to monitor the flow of air in the clean room, a stick cooled with liquid nitrogen is periodically exposed to the atmosphere of the clean room to coagulate the moisture in the vicinity and generate a smoke-like mist. A method of visualizing and observing the flow state (air flow state) of air from the flow is adopted.
その液体窒素による煙状の霧を発生させる方法は、第２
図に示しているように、保存ボトル１にステック（stic
k;棒）２を差し込み、液体窒素（LN2）の中にステック
の先端を暫く浸して冷却させる（第２図（ａ）参照）。
次いで、ステック２を液体窒素保存ボトル１から抜き出
し、空気（クリーンルームの雰囲気）中に曝す。そうす
ると、冷却したステック２の先端の周囲の空気中の水分
が凝固して霧Ｆを生じ、空気の流れ方向に恰も煙がたな
びくように白霧の流れが形成される（第２図（ｂ）参
照）。The method of generating the smoke-like mist by the liquid nitrogen is the second
As shown in the figure, a stick (stic
(k; bar) 2 and insert the tip of the stick into liquid nitrogen (LN 2 ) for a while to cool it (see FIG. 2 (a)).
Next, the stick 2 is extracted from the liquid nitrogen storage bottle 1 and exposed to air (clean room atmosphere). Then, the water in the air around the tip of the cooled stick 2 is solidified to form a fog F, and a stream of white fog is formed so that smoke flies in the direction of the air flow (FIG. 2 (b)). reference).
そのような可視化状態をチェックして、クリーンルーム
内における空気の流れを監視し、クリーンルーム内の清
浄化を計つている。Such a visualization state is checked, the air flow in the clean room is monitored, and the clean room is measured.
ところが、その操作を繰り返えしておこなうと、ステッ
ク２に水分が付着して凝固し、ステックの表面に霜がで
きて、そのために霧がムラになり、白霧の流れが乱流に
なつて、正常な空気の流れが正常でないように観察され
て、誤った判断をする場合がある。However, when the operation is repeated, the water adheres to the stick 2 and solidifies, and frost forms on the surface of the stick, which causes the mist to become uneven and the white mist to flow turbulently. Therefore, a normal air flow may be observed to be abnormal, and a wrong judgment may be made.
その判断の誤りをなくするためにステックの表面から霜
を布で擦つて拭き取つた後、保存ボトルにステックを差
し込む方法を採つているが、それは人手が掛つて、しか
も、手に低温火傷を起こす危険がある。In order to eliminate the misjudgment, the frost is wiped from the surface of the stick with a cloth, and then the stick is inserted into the storage bottle. There is a risk of causing it.
本考案はそのような問題点を解消させて、ステックから
霜を容易に除去することが可能な霜とりアダプタを提案
するものである。The present invention solves such a problem and proposes a defrost adapter capable of easily removing frost from a stick.
その課題は、第１図に示す実施例のように、ステック２
が保存ボトル１内部まで挿入でき、該ステックの出し入
れ時にステック表面と擦り合う摩擦チューブ３を中央に
位置させ、低部４がボトル開口11に嵌合できて、且つ、
該低部の周縁に水滴受け皿５を設けた冷凍用液体保存ボ
トルの霜とりアダプタによつて解決される。The problem is, as in the embodiment shown in FIG.
Can be inserted into the inside of the storage bottle 1, the friction tube 3 that rubs against the surface of the stick when the stick is taken in and out is located at the center, and the lower portion 4 can be fitted into the bottle opening 11, and
This can be solved by a defrosting adapter for a freezing liquid storage bottle having a water drop tray 5 on the periphery of the lower portion.
即ち、本考案にかかる霜とりアダプタを保存ボトルの開
口に取り付けると、ステックを保存ボトルに差し込む際
に、ステックを摩擦チューブに擦りつけて霜を取り除く
ことができ、直接ステックの冷却部分に手を触れること
がなくなるため、低温火傷を起こす心配もなく、霜とり
が容易になる。That is, when the defrosting adapter according to the present invention is attached to the opening of the storage bottle, when the stick is inserted into the storage bottle, the stick can be rubbed against the friction tube to remove the frost, and the cooling part of the stick can be directly touched. Since it does not touch, there is no concern of causing low temperature burns, and defrosting is easy.
以下に図面を参照して実施例によつて詳細に説明する。 Hereinafter, embodiments will be described in detail with reference to the drawings.
第１図は本考案にかかる霜とりアダプタの断面図を示し
ており、１は保存ボトル（液体窒素保存ボトル）,2はス
テック,3は摩擦チューブ,4はアダプタの底部,5は水滴受
け皿である。保存ボトル１はいわゆる魔法壜であり、ス
テック２は熱伝導性の良くないアルミニウム棒などから
なり、摩擦チューブ３は低温に耐えるゴム製のチューブ
である。霜とりアダプタ全体はアルミニウムでも磁器で
も熱伝導の悪い材料で作製する。FIG. 1 is a sectional view of a defrosting adapter according to the present invention, where 1 is a storage bottle (liquid nitrogen storage bottle), 2 is a stick, 3 is a friction tube, 4 is the bottom of the adapter, and 5 is a water drop tray. is there. The storage bottle 1 is a so-called magic bottle, the stick 2 is made of an aluminum rod or the like having poor heat conductivity, and the friction tube 3 is a rubber tube that can withstand a low temperature. The entire defrost adapter is made of aluminum or porcelain, which is a material with poor heat conduction.
そうして、前回の操作を終えて、水分が付着して霜がで
きたステック２を本考案にかかる霜とりアダプタの摩擦
チューブ３を挿入し、上下に動かしてステック２と摩擦
チューブ３とを擦りつけて霜を溶かし、水滴にしてその
水滴を水滴受け皿５に受ける。次いで、そのままステッ
クを保存ボトル１に深く差入れて、先端を液体窒素（LN
2）に浸して冷却させる。そして、良く冷却すれば、ス
テックを保存ボトル１から抜き出して、次の空気の流れ
方向を観察する操作をおこなう。ステック２の大きさは
例えば、長さ1m,直径10mmφ程度のものを用い、保存ボ
トル１もそれが差し入れられる程度の大きさのものであ
る。Then, after finishing the previous operation, insert the friction tube 3 of the defrosting adapter according to the present invention into the stick 2 that is frosted due to water adhesion, and move it up and down to move the stick 2 and the friction tube 3 together. The frost is melted by rubbing to form water droplets, which are received by the water droplet receiving tray 5. Then, insert the stick into the storage bottle 1 as it is, and tip it with liquid nitrogen (LN
2 ) Soak in to cool. Then, if cooled well, the stick is taken out from the storage bottle 1 and the operation of observing the next air flow direction is performed. The size of the stick 2 is, for example, one having a length of 1 m and a diameter of about 10 mmφ, and the storage bottle 1 is of a size into which it can be inserted.
上記のようにすれば、霧のムラがなくなり、絶えず正常
な空気の流れが観察できて、クリーンルーム内などにお
ける空気の流れを正確に把握することができる。しか
も、低温火傷を起こす心配がなく、作業効率良く空気の
流れの可視化をおこなうことができる。According to the above, the unevenness of the fog is eliminated, the normal air flow can be constantly observed, and the air flow in the clean room or the like can be accurately grasped. Moreover, it is possible to visualize the flow of air with good work efficiency without worrying about low-temperature burns.
なお、上記実施例は冷凍用液体として液体窒素（LN2）
を例として説明したが、他の冷凍用液体、例えば、液体
空気や液体ヘリウムなどにも本考案にかかる霜とりアダ
プタを利用することができる。In the above example, liquid nitrogen (LN 2 ) was used as the freezing liquid.
However, the defrosting adapter according to the present invention can be used for other refrigerating liquids such as liquid air and liquid helium.
以上の実施例の説明から明らかなように、本考案によれ
ば直接冷却したステックの部分に手を触れる必要がな
く、手に低温火傷を起こす心配がない。且つ、効率良く
正常な空気の流れが可視化できるという効果がある。As is apparent from the above description of the embodiments, according to the present invention, it is not necessary to directly touch the portion of the stick that has been cooled, and there is no risk of causing low temperature burns to the hand. In addition, there is an effect that the normal air flow can be visualized efficiently.
第１図は本考案にかかる霜とりアダプタの断面図、 第２図は液体窒素による煙状の霧を発生させる方法を示
す図 である。 図において、 １は保存ボトル（液体窒素保存ボトル）、２はステッ
ク、３は摩擦チューブ、４は底部、５は水滴受け皿、11
はボトル開口 を示している。FIG. 1 is a sectional view of a defrosting adapter according to the present invention, and FIG. 2 is a view showing a method for producing a smoke-like mist by liquid nitrogen. In the figure, 1 is a storage bottle (liquid nitrogen storage bottle), 2 is a stick, 3 is a friction tube, 4 is a bottom part, 5 is a water drop tray, 11
Indicates the bottle opening.
Claims (1)
で挿入でき、該ステックの出し入れ時にステック表面と
擦り合う摩擦チューブ（３）を中央に位置させ、低部
（４）をボトル開口（11）に嵌合できて、且つ、該低部
の周縁に水滴受け皿（５）を設けたことを特徴とする冷
凍用液体保存ボトルの霜とりアダプタ。1. A stick (2) can be inserted into the inside of a storage bottle (1), a friction tube (3) that rubs against the surface of the stick when the stick is taken in and out is located at the center, and the lower part (4) is opened in the bottle ( A defrosting adapter for a liquid storage bottle for freezing, which can be fitted to 11) and is provided with a water drop tray (5) on the periphery of the lower portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9925289U JPH0650387Y2 (en) | 1989-08-24 | 1989-08-24 | Defrosting of liquid preservation bottles for freezing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9925289U JPH0650387Y2 (en) | 1989-08-24 | 1989-08-24 | Defrosting of liquid preservation bottles for freezing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0338784U JPH0338784U (en) | 1991-04-15 |
| JPH0650387Y2 true JPH0650387Y2 (en) | 1994-12-21 |
Family
ID=31648309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9925289U Expired - Lifetime JPH0650387Y2 (en) | 1989-08-24 | 1989-08-24 | Defrosting of liquid preservation bottles for freezing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0650387Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6874458B2 (en) | 2001-12-28 | 2005-04-05 | Kohler Co. | Balance system for single cylinder engine |
-
1989
- 1989-08-24 JP JP9925289U patent/JPH0650387Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6874458B2 (en) | 2001-12-28 | 2005-04-05 | Kohler Co. | Balance system for single cylinder engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0338784U (en) | 1991-04-15 |
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