JPH02144158A - Draft chamber - Google Patents

Draft chamber

Info

Publication number
JPH02144158A
JPH02144158A JP29857488A JP29857488A JPH02144158A JP H02144158 A JPH02144158 A JP H02144158A JP 29857488 A JP29857488 A JP 29857488A JP 29857488 A JP29857488 A JP 29857488A JP H02144158 A JPH02144158 A JP H02144158A
Authority
JP
Japan
Prior art keywords
door
air
opening
draft chamber
chamber
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
JP29857488A
Other languages
Japanese (ja)
Other versions
JPH074538B2 (en
Inventor
Hiroshi Fujita
藤田 拡
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.)
Itoki Kosakusho Co Ltd
Original Assignee
Itoki Kosakusho Co 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 Itoki Kosakusho Co Ltd filed Critical Itoki Kosakusho Co Ltd
Priority to JP29857488A priority Critical patent/JPH074538B2/en
Publication of JPH02144158A publication Critical patent/JPH02144158A/en
Publication of JPH074538B2 publication Critical patent/JPH074538B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/02Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
    • B08B15/023Fume cabinets or cupboards, e.g. for laboratories

Landscapes

  • Ventilation (AREA)
  • Air-Flow Control Members (AREA)
  • Devices For Use In Laboratory Experiments (AREA)

Abstract

PURPOSE:To surely interrupt an aperture part even in such a state that a door is half opened by forming the door into a hollow door and introducing air from the upper end side thereof and discharging this air from the lower end side and thereby forming an air curtain for interrupting the aperture part at a time for opening the door. CONSTITUTION:A door 8 is provided which is vertically slid and operated to open and close the aperture part 2 of a treatment chamber 4. This door 8 is formed into a hollow door and air is introduced from the upper end side thereof and discharged from the lower end side. Thereby an air curtain for interrupting the aperture part 2 is formed at a time for opening the door. As a result, the air curtain is always formed by the air ejected from the lower end position of the aperture at this time even in such a state that the door is half opened. The aperture part is always and surely interrupted by this air curtain.

Description

【発明の詳細な説明】 (産業上の利用分野) この発明は、処理室内に発生した臭気、侵食性の強い酸
性ガス、有毒ガスなどを室外に排出づるためのドラフト
チャンバに関する。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a draft chamber for exhausting odor, highly corrosive acid gas, toxic gas, etc. generated inside a processing chamber to the outside.

(従来の技術) この種のドラフトチャンバの従来例として、ドラフトチ
ャンバ本体の前面に開口部を設け、この開口部を上下に
スライドする扉で開閉するとどしに、ドラフトチャンバ
本体の前面の開口部上方に下向きに開口する噴気口を設
け、この噴気口から噴出する空気によってエアーカーテ
ンを形成して扉開放時の開口部を遮断し、処理室内の空
調が外界の影響を受けないようにしたちのく実公昭47
36855 N )が知られている。
(Prior Art) As a conventional example of this type of draft chamber, an opening is provided at the front of the draft chamber body, and this opening is opened and closed by a door that slides up and down. A fumarole is provided at the top that opens downward, and the air ejected from the nozzle forms an air curtain that blocks the opening when the door is opened to prevent the air conditioning inside the processing chamber from being affected by the outside world. Kumi Kosho 47
36855 N) is known.

(発明が解決しようどする課題) しかしながら、上記した従来のドラフトチャンバにおい
ては、扉の開度に関係なく固定位置にある噴気口から噴
出する空気によってエアーカーテンが形成されるため、
扉が半間ぎ状態ではその間口位置よりもかなり高い位置
から空気が噴出することになり、エアーカーテンの遮断
効果が著しく低下してしまうという問題点があった。
(Problems to be Solved by the Invention) However, in the conventional draft chamber described above, an air curtain is formed by air ejected from the jet nozzle at a fixed position regardless of the opening degree of the door.
When the door is half-open, air will be blown out from a position considerably higher than the opening position, resulting in a problem in that the blocking effect of the air curtain will be significantly reduced.

(発明の目的) この発明は、上記問題点を解決づるためになされたもの
で、扉が半開きの状態においても開口部を確実に遮断す
るエアーカーテンを形成することのできるドラフトチャ
ンバを提供することを目的とする。
(Object of the Invention) The present invention was made to solve the above-mentioned problems, and it is an object of the present invention to provide a draft chamber that can form an air curtain that reliably blocks the opening even when the door is half-open. With the goal.

(1題を解決するための手段) この発明は、上下にスライド動作して処理室の開口部を
開閉する扉を有するドラフトチャンバであって、上記扉
を中空扉とし、その上端側から空気を導入し下端側から
排出することによって、扉m1放時の開口部を遮断する
エアーカーテンを形成するようにしたものである。
(Means for Solving Problem 1) The present invention is a draft chamber having a door that slides up and down to open and close an opening of a processing chamber. By introducing the air and discharging it from the lower end side, an air curtain is formed that blocks the opening when the door m1 is released.

(作用) この発明に係るドラフトチャンバにおいては、中空扉の
下端が空気の噴出口となるので、扉が半開きの状態でも
常にそのときの開口の上端位置から噴出する空気によっ
てエアーカーテンが形成されることとなり、間口が確実
に遮断される。
(Function) In the draft chamber according to the present invention, the lower end of the hollow door serves as the air outlet, so even when the door is half open, the air curtain is always formed by the air ejected from the upper end position of the opening at that time. As a result, the frontage is reliably blocked.

(実施例) 第1図はこの発明の一実施例であるドラフトチャンバの
概略的な構成を示す縦断面図である。
(Embodiment) FIG. 1 is a vertical sectional view showing a schematic configuration of a draft chamber which is an embodiment of the present invention.

第1図において、ドラフトチャンバ本体1は方形箱型で
、その前面の下2r部に開口部2が形成されている。ま
たドラフトチャンバ本体1内のほぼ下半部は仕切壁3に
よって前後2つの空間に分けられ、開口部2に直接通ず
る前部の空間は処理室4とされ、後部の空間は排気路5
とされている。
In FIG. 1, a draft chamber main body 1 has a rectangular box shape, and an opening 2 is formed at a lower portion 2r of the front surface thereof. Further, approximately the lower half of the draft chamber main body 1 is divided into two spaces, front and rear, by a partition wall 3, the front space directly communicating with the opening 2 is a processing chamber 4, and the rear space is an exhaust passage 5.
It is said that

付切壁3の上下には処理室4の空気その他のガスを排気
路5へ導く通気口6.7が形成されている。
Vent holes 6.7 are formed at the top and bottom of the attached cut wall 3 to guide air and other gases from the processing chamber 4 to the exhaust path 5.

ざらにドラフトチャンバ本体1内には、その前面に沿っ
てF下にスライドし上記開口部2を開閉づる中空構造の
扉8が設けられており、ドラフトチャンバ本体1の上半
部前面側には開放時の扉8を収容する扉収容空間9が形
成されている。
Roughly, inside the draft chamber main body 1, there is provided a door 8 having a hollow structure that slides downward F along its front surface to open and close the opening 2, and on the front side of the upper half of the draft chamber main body 1. A door accommodating space 9 is formed to accommodate the door 8 when opened.

またドラフトチャンバ本体1の上半部掛方には外気を導
入する循環ブロワ10が設けられ、この循環ブロワ10
の吐出側はドラフトチャンバ本体1の前面側まで延設さ
れる給気路11aを介して、ドラフトチャンバ本体1の
前面上半部に設けられた空気室11bに導かれている。
Further, a circulation blower 10 for introducing outside air is provided in the upper half of the draft chamber body 1.
The discharge side of the draft chamber body 1 is led to an air chamber 11b provided in the upper front half of the draft chamber body 1 via an air supply path 11a extending to the front side of the draft chamber body 1.

この空気室11bは上記した扉収容空間9に連通させで
ある。寸なわら、給気路11と扉収容空間9の間を仕切
るドラフトチャンバ本体1の前面壁には複数の通気口1
2が形成されている。
This air chamber 11b communicates with the door housing space 9 described above. However, there are a plurality of ventilation holes 1 on the front wall of the draft chamber main body 1 that partitions between the air supply path 11 and the door accommodation space 9.
2 is formed.

さらに、ドラフトチャンバ本体1内の天井部には前後に
1対のプーリ13.14が配置され、このプーリ13.
14に掛は渡された索条15の一端に上記した扉8が、
他端にカウンターウェイト16がそれぞれ接続されて、
扉8とカウンターウェイト16の荷重がバランスを保つ
状態にしである。扉収容空間9下端の前後の内壁面には
、併8の前後面に層接して扉収容空間9の下端部を気密
にするためのシール17が設けられている。扉収容空間
9の一部と18理室4とを仕切る一部の仕切壁18には
複数のパンチング穴より成る通気口19が設けられ、さ
らに扉収容空間9内には17i!8開放時に扉8に押さ
れて上記通気口19を閉鎖する一方、戻8閉成時に扉8
による押圧を解除されて上記通気口19を開放する切換
えダンパ20が回動自在に枢支されている。なお、処理
室4の天ttには、処理室4内を照らす照明灯21が設
けられている。
Furthermore, a pair of pulleys 13.14 are arranged at the front and rear of the ceiling inside the draft chamber main body 1, and the pulleys 13.
The above-mentioned door 8 is placed at one end of the cable 15 that is passed to 14.
A counterweight 16 is connected to the other end,
The load between the door 8 and the counterweight 16 is kept in balance. Seals 17 are provided on the front and rear inner wall surfaces of the lower end of the door accommodating space 9 to make the lower end of the door accommodating space 9 airtight by being in contact with the front and rear surfaces of the door accommodating space 9 . A part of the partition wall 18 that partitions a part of the door accommodation space 9 and the 18-barroom 4 is provided with a ventilation hole 19 consisting of a plurality of punched holes. When 8 is opened, the vent 19 is pushed by the door 8, and when the door 8 is closed, the door 8 is closed.
A switching damper 20 that opens the vent 19 when the pressure is released is rotatably supported. Note that an illumination light 21 that illuminates the inside of the processing chamber 4 is provided on the ceiling tt of the processing chamber 4.

第2図は上記m8の側部のガイド構造を示す水平断面図
である。第2図に示すように、ドラフトチャンバ本体1
内の両側部には断面概形がハツト形のガイドレール22
が重設されており、このガイドレール22の四部22a
で扉8の側部が案内されて、扉8が上下に円滑にスライ
ドできるようにしである。なお図示しないが、後述する
側枠24a(24b)の四部に摺動自在に嵌合する案内
機を、これも後述する取付板26に干渉しない位置でド
ラフトチャンバ本体に1に設け、扉8の案内をより確実
にするようにしてもよい。
FIG. 2 is a horizontal sectional view showing the guide structure of the side part of m8. As shown in FIG. 2, the draft chamber body 1
Guide rails 22 with a hat-shaped cross section are provided on both sides of the interior.
are superimposed, and the four parts 22a of this guide rail 22
The sides of the door 8 are guided so that the door 8 can slide up and down smoothly. Although not shown in the drawings, a guide device that slidably fits into four parts of the side frame 24a (24b), which will be described later, is provided on the draft chamber main body 1 at a position that does not interfere with the mounting plate 26, which will also be described later. The guidance may be made more reliable.

第3図は上記扉8の一部を分解して示す斜視図である。FIG. 3 is a partially exploded perspective view of the door 8. As shown in FIG.

第3図に示すように、扉8は前後1対のガラス板23a
、23bと、これらガラス板23a、23bで両側部に
おいて挟まれる断面口字状の1対の側枠24a、24b
と、扉8の下端面を形成する底板25によって中空状に
構成されている。両側枠24a、24bの途中には取付
板26が固設され、この取付板26に扉8を吊持する索
状15が止着しである。上記底板25は第4図に斜視図
に示すように断面概形が0字状で、その底面には複数の
円形パンチング穴が噴気口27として形成されており、
また底板25の前面側には扉8を開閉操作するための把
持部28が突出させである。
As shown in FIG. 3, the door 8 has a pair of front and rear glass plates 23a.
, 23b, and a pair of side frames 24a, 24b having an opening-shaped cross section sandwiched between the glass plates 23a, 23b on both sides.
The door 8 is formed into a hollow shape by a bottom plate 25 forming the lower end surface of the door 8. A mounting plate 26 is fixed in the middle of both side frames 24a and 24b, and a cable 15 for suspending the door 8 is fixedly attached to this mounting plate 26. As shown in the perspective view of FIG. 4, the bottom plate 25 has a 0-shaped cross section, and a plurality of circular punched holes are formed as blowholes 27 on the bottom surface.
Furthermore, a grip portion 28 for opening and closing the door 8 projects from the front side of the bottom plate 25.

次に上記ドラフトチャンバの動作について説明する。Next, the operation of the draft chamber will be explained.

扉8が最下位置まで降ろされて、開口部2が扉8によっ
て完全に閉鎖されている状態では、切換ダンパ20は扉
8による押圧を解かれ、第1図に仮想線で示すように通
気口19を全開した水平姿勢に保たれている。このとき
、循環ブロワ10によって導入される外気は、給気路1
1a、空気室11b、通気口12.扉収容空間92通気
口19を経て、通気口19のパンチング穴で整流されて
破線で示すように処理室4内へと供給される。空気室1
1bは循環ブロワ10のl1lffiが変ったときのバ
ッファとして作用し、風量切換時などに常に安定した風
量を処理室4に供給する。処理室4内の空気その他のガ
スは仕切壁3の通気口6,7からIノr気路5を経て図
示しない排気口により外界へと排出される。
When the door 8 is lowered to the lowest position and the opening 2 is completely closed by the door 8, the switching damper 20 is released from the pressure of the door 8, and the ventilation is stopped as shown by the imaginary line in FIG. It is kept in a horizontal position with its mouth 19 fully open. At this time, the outside air introduced by the circulation blower 10 is
1a, air chamber 11b, vent 12. The air passes through the door housing space 92 and the vent 19, is rectified by the punched hole in the vent 19, and is supplied into the processing chamber 4 as shown by the broken line. Air chamber 1
1b acts as a buffer when l1lffi of the circulating blower 10 changes, and always supplies a stable air volume to the processing chamber 4 when changing the air volume. Air and other gases in the processing chamber 4 are discharged to the outside world from the vents 6 and 7 of the partition wall 3 via the I-N air path 5 and through an exhaust port (not shown).

一方、I7i!8が第1図に示すように持ち上げられて
開口部2が開放されると、扉8によって切換えダンパ2
0は実線で示づように押し上げられ、扉収容空間9と処
理室4の間の通気口19を閉f171′る。このとき、
循環ブロワ10によって導入される外気は、給気路11
a、空気室11b2通気口12を経てm収容空間9まで
供給されたあと、m8の上端から扉8の中空部に導かれ
、扉8下端の噴気口27から下方へ向けて、均一なEf
i fi1分布でかつ高められた風速で、第1図に実線
で示すように噴出する。この噴出する空気がエアーカー
テンを形成し、開口部2はその1アーカーテンによって
遮断される。なお上述した空気室11bの作用により、
風61切換時などにエアーカーテンの風量の安定化が図
られる。エアーカーテンとして噴出する空気は、処理室
4内の他のガスとと乙に通気口6,7、排気路5を経て
図示しない排気口より外界へ排出される。この場合、扉
8が半開きの状態でも、常にそのときの開口の上端つま
り扉8の下端から空気が噴出するので、開口を遮断する
に足る十分な風圧のエアーカーテンが形成されることに
なる。
On the other hand, I7i! 8 is lifted to open the opening 2 as shown in FIG.
0 is pushed up as shown by the solid line, and the vent 19 between the door housing space 9 and the processing chamber 4 is closed f171'. At this time,
The outside air introduced by the circulation blower 10 is passed through the air supply path 11
After the air is supplied to the m accommodation space 9 through the air chamber 11b2 and the vent 12, it is guided from the upper end of m8 to the hollow part of the door 8, and is directed downward from the fumarole port 27 at the lower end of the door 8 to produce a uniform Ef.
With i fi1 distribution and increased wind speed, it blows out as shown by the solid line in FIG. This ejected air forms an air curtain, and the opening 2 is blocked by one of the arc curtains. Note that due to the action of the air chamber 11b mentioned above,
The air volume of the air curtain is stabilized when the wind 61 is switched. The air ejected as an air curtain passes through the vents 6 and 7 and the exhaust path 5 along with other gases in the processing chamber 4, and is discharged to the outside from an exhaust port (not shown). In this case, even when the door 8 is half-open, air always blows out from the upper end of the opening at that time, that is, the lower end of the door 8, so that an air curtain with sufficient wind pressure to block the opening is formed.

なお、上記実施例では、m8の下端の噴気口27として
、底板25に複数のパンチング穴を形成した場合につい
て説明したが、これに限らず、例えば第5図に示すよう
に、断面が逆へ字状に絞られた形状をなすスリット2つ
をm8の幅方向に向(Jで底板25に形成し、これを噴
気口として、均一な風量分布J3よび高められた風速の
エアーカーテンを得るようにしてbよい。
In the above embodiment, the case where a plurality of punched holes are formed in the bottom plate 25 as the blowholes 27 at the lower end of m8 has been described, but the invention is not limited to this. For example, as shown in FIG. Two slits in the shape of a narrowed letter are formed in the bottom plate 25 in the width direction of m8 (J), and these are used as blowholes to obtain an air curtain with a uniform air volume distribution J3 and increased wind speed. It's good to do it.

(発明の効果) 以上のように、請求項1記戎のドラフトチャンバによれ
ば、中空部の上端から空気を導入し下端から排出するこ
とによってエアーカーテンを形成するように構成してい
るので、開が半開きの状態でも常にそのとさ゛の開口の
上端(12置から噴出−4−る空気によってエアーカー
テンが形成されることに77す、エアーカーテンによっ
て間口を常に確実に遮断することができるという効果が
ある。
(Effects of the Invention) As described above, according to the draft chamber of claim 1, the air curtain is formed by introducing air from the upper end of the hollow part and discharging it from the lower end. Even when the opening is half-open, the air curtain is always formed by the air ejected from the upper end of the opening (12), so the air curtain can always reliably block the frontage. effective.

また請求項2記載のドラフトチャンバによれば、中空部
の開閉に伴う押通によって状態が切換えられる切換えダ
ンパにより、空気を中空部の上端あるいは処理室に切換
えて導入するように構成しているので、空気の流れの切
換えが容易になるという効果がある。
Further, according to the draft chamber according to claim 2, air is selectively introduced into the upper end of the hollow portion or into the processing chamber by a switching damper whose state is changed by pushing through the hollow portion when the hollow portion is opened and closed. This has the effect of making it easier to switch the air flow.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図はこの発明の一実施例であるドラフトチャンバの
概略的な構成を示寸゛縦断面図、第2図はそのドラフト
’f−tンバの扉のガイド構造を示す水平新面図、第3
図はそのトラフトチI7ンバの扉の一部を分解して示す
斜視図、第4図はその扉の底板の一部を拡大して示す斜
視図、第5図は扉の噴気口の他の実施例を示す縦断面図
である。 1・・・ドラフトチャンバ本体、2・・・開口部、4・
・・処理室、       8・・・扉、9・・・扉収
容空間、      10・・・循環ブロワ、11a・
・・給気路、      11b・・・空気室、19・
・・通気口、
FIG. 1 is a vertical sectional view showing the schematic structure of a draft chamber according to an embodiment of the present invention, and FIG. 2 is a horizontal new view showing the guide structure of the door of the draft chamber. Third
The figure is an exploded perspective view of a part of the door of the trough chamber I7, Figure 4 is an enlarged perspective view of a part of the bottom plate of the door, and Figure 5 is another example of the blowhole of the door. It is a longitudinal cross-sectional view showing an example. DESCRIPTION OF SYMBOLS 1... Draft chamber main body, 2... Opening part, 4...
...Processing room, 8...Door, 9...Door accommodation space, 10...Circulation blower, 11a.
...Air supply path, 11b...Air chamber, 19.
··vent,

Claims (2)

【特許請求の範囲】[Claims] (1)上下にスライド動作して処理室の開口部を開閉す
る扉を有するドラフトチャンバにおいて、前記扉を中空
扉とし、その上端側から空気を導入し下端側から排出す
ることによって、扉開放時の前記開口部を遮断するエア
ーカーテンを形成するようにしたことを特徴とするドラ
フトチャンバ。
(1) In a draft chamber that has a door that slides up and down to open and close the opening of the processing chamber, the door is a hollow door, and air is introduced from the upper end and exhausted from the lower end, so that when the door is opened, A draft chamber characterized in that an air curtain is formed to block the opening of the draft chamber.
(2)前記中空扉の開放時の扉収容空間と前記処理室と
の間に設けられた通気口に付設され、前記中空扉の開放
時には前記中空扉に押動されて前記通気口を閉成するこ
とにより前記扉収容空間に導入された空気を前記中空扉
の上端に流し込むとともに、前記中空扉の閉成時には前
記中空扉の押動から開放されて前記通気口を開成するこ
とにより前記扉収容空間に導入された空気を前記通気口
を介して前記処理室に流し込む切換えダンパを備える請
求項1記載のドラフトチャンバ。
(2) attached to a vent provided between the door accommodation space and the processing chamber when the hollow door is opened, and is pushed by the hollow door to close the vent when the hollow door is opened; By doing so, the air introduced into the door accommodation space is allowed to flow into the upper end of the hollow door, and when the hollow door is closed, the hollow door is released from the pushing movement and the vent opening is opened, thereby making the door accommodation possible. The draft chamber according to claim 1, further comprising a switching damper that causes air introduced into the space to flow into the processing chamber through the vent.
JP29857488A 1988-11-25 1988-11-25 Draft chamber Expired - Lifetime JPH074538B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29857488A JPH074538B2 (en) 1988-11-25 1988-11-25 Draft chamber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29857488A JPH074538B2 (en) 1988-11-25 1988-11-25 Draft chamber

Publications (2)

Publication Number Publication Date
JPH02144158A true JPH02144158A (en) 1990-06-01
JPH074538B2 JPH074538B2 (en) 1995-01-25

Family

ID=17861506

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29857488A Expired - Lifetime JPH074538B2 (en) 1988-11-25 1988-11-25 Draft chamber

Country Status (1)

Country Link
JP (1) JPH074538B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0687512A3 (en) * 1994-06-01 1996-09-18 Waldner Laboreinrichtungen Safety laboratory hood cupboard
WO2008080348A1 (en) * 2006-12-28 2008-07-10 Accelergy Shanghai R & D Center Co., Ltd. Fume hood and method for operating a fume hood
JP2015009187A (en) * 2013-06-28 2015-01-19 ヤマト科学株式会社 Low air-capacity draft chamber
IT201700045556A1 (en) * 2017-04-27 2018-10-27 Omicron Italia S R L LABORATORY ASPIRATING HOOD

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0687512A3 (en) * 1994-06-01 1996-09-18 Waldner Laboreinrichtungen Safety laboratory hood cupboard
WO2008080348A1 (en) * 2006-12-28 2008-07-10 Accelergy Shanghai R & D Center Co., Ltd. Fume hood and method for operating a fume hood
JP2015009187A (en) * 2013-06-28 2015-01-19 ヤマト科学株式会社 Low air-capacity draft chamber
IT201700045556A1 (en) * 2017-04-27 2018-10-27 Omicron Italia S R L LABORATORY ASPIRATING HOOD
EP3395453A1 (en) * 2017-04-27 2018-10-31 Omicron Italia S.R.L. Laboratory suction hood

Also Published As

Publication number Publication date
JPH074538B2 (en) 1995-01-25

Similar Documents

Publication Publication Date Title
US6350194B1 (en) Fume hood with airflow control system
EP0139128B1 (en) Clean bench
KR101347217B1 (en) Fume hood
CN111195637B (en) Novel interior tonifying wind exhaust cabinet
JPH02144158A (en) Draft chamber
JP2505034B2 (en) Draft chamber
JPH06233941A (en) Draft chamber
CN115007590B (en) Fume chamber
CN115318786B (en) Fume chamber
CN217726586U (en) Flow guide structure and fume chamber
CN217726587U (en) Side air supplement assembly and ventilation cabinet
JPS637837Y2 (en)
JPH07275717A (en) Draft chamber
JP2002333159A5 (en)
US2810337A (en) Ventilated fume hoods
JP4532087B2 (en) Fume hood
KR20100007185A (en) Fume exhaust apparatus
JPH0141072Y2 (en)
US7247087B1 (en) Fume hood with air directing member
JP2001205110A (en) Draft chamber
JPH04895Y2 (en)
JP4411509B2 (en) Fan filter unit
KR100268202B1 (en) Tunnel ventilation
JPS6312355A (en) Draft chamber
WO2024026901A1 (en) Partition member air-supplementing module and fume hood