JP2002147827A - High safety equipment and control method therefor - Google Patents
High safety equipment and control method thereforInfo
- Publication number
- JP2002147827A JP2002147827A JP2000345949A JP2000345949A JP2002147827A JP 2002147827 A JP2002147827 A JP 2002147827A JP 2000345949 A JP2000345949 A JP 2000345949A JP 2000345949 A JP2000345949 A JP 2000345949A JP 2002147827 A JP2002147827 A JP 2002147827A
- Authority
- JP
- Japan
- Prior art keywords
- room
- air volume
- cabinet
- chamber
- door
- 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.)
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Links
Landscapes
- Air Conditioning Control Device (AREA)
- Devices For Use In Laboratory Experiments (AREA)
- Ventilation (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、高度安全施設とそ
の制御方法に関し、特に、各室間の室圧差を制御せずに
各室からの排気量を制御することで、汚染度の低い部分
から汚染度の高い部分へと各室間の空気の流れを一方向
に維持する高度安全施設とその制御方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-safety facility and a control method therefor, and more particularly, to a low-pollution part by controlling the amount of exhaust from each room without controlling the room pressure difference between the rooms. The present invention relates to a high-safety facility for maintaining the flow of air between rooms from one direction to a highly contaminated area and a control method thereof.
【０００２】[0002]
【従来の技術】病原体に対する免疫研究、バイオテクノ
ロジーによる制約技術や放射性同位元素による素材の改
良技術等、最新技術の開発研究・生産工程向けの高度安
全施設では、施設内の汚染空気が外部に漏洩するのを防
止するために施設内の室圧を陰圧に保つと共に、施設内
の各室間における空気の相互汚染問題を避けるために室
圧制御を行っている。2. Description of the Related Art In highly secure facilities for the research and development of the latest technologies, such as immunity research on pathogens, restriction technology using biotechnology, and technology for improving materials using radioisotopes, contaminated air in the facilities leaks outside. The room pressure in the facility is maintained at a negative pressure in order to prevent this, and the room pressure is controlled in order to avoid the cross-contamination problem of air between the rooms in the facility.
【０００３】例えば、高度安全施設の１つであるバイオ
ハザード対策施設（以下、ＢＨ施設と称する）では、施
設内の作業室と作業室の内部に在って汚染物質を発生す
る動物実験を実施する実験用キャビネット及び作業室と
扉で接続する前室において、各室間の空気の流れを汚染
度の低い部分から汚染度の高い部分へと一方向にするよ
うに室圧制御が行われている。[0003] For example, in a biohazard countermeasure facility (hereinafter referred to as a BH facility), which is one of the advanced safety facilities, a work room in the facility and an animal experiment in which pollutants are generated inside the work room are conducted. In the anterior chamber connected to the laboratory cabinet and the working room by a door, the room pressure is controlled so that the air flow between the chambers is unidirectional from the low-contamination part to the high-contamination part. I have.
【０００４】図５に示すように、従来のＢＨ施設２０は
作業室２１と前室２２から構成されており、その間はド
ア２３によって接続されている。又、作業室２１には、
汚染物質を発生する動物実験を実施するために開度調整
の可能な扉を備えた実験用キャビネット２４等が配置さ
れており、扉の開度を小さくした実験用キャビネット２
４での飼育と扉の開度を大きくした実験作業を実施でき
るように構成されている。As shown in FIG. 5, a conventional BH facility 20 comprises a work room 21 and a front room 22, which are connected by a door 23 therebetween. Also, in the working room 21,
In order to carry out an animal experiment that generates pollutants, an experimental cabinet 24 and the like provided with a door whose opening can be adjusted are arranged.
It is configured to be able to carry out breeding in 4 and experimental work in which the opening of the door is increased.
【０００５】ＢＨ施設２０には、給気ファン２５と排気
ファン２６とによって外気の供給と室内からの排気が行
われている。給気ファン２５と前室、作業室のとの間に
は、それぞれに、定風量装置２７Ａ、２７Ｂと高性能フ
ィルタ２８とが配置されており、各室と排気ファン２６
との間には、高性能フィルタ２８と変風量装置２９Ａ、
２９Ｂがそれぞれに配置されている。[0005] The BH facility 20 is supplied with outside air and exhausted from the room by an air supply fan 25 and an exhaust fan 26. Constant air flow devices 27A and 27B and a high-performance filter 28 are arranged between the air supply fan 25, the front room, and the work room, respectively.
Between the high-performance filter 28 and the variable air volume device 29A,
29B are arranged respectively.
【０００６】又、実験用キャビネット２４と排気ファン
２６との間にはモータダンパーＭＤが接続されており、
飼育と実験作業時に応じて実験用キャビネット２４の排
気風量を２段階に変更できるように速度を切り替え可能
にしている。尚、実験用キャビネット２４と排気ファン
２６との間にも、汚染空気が外部に排出されないよう
に、高性能フィルタ２８が配置されている。A motor damper MD is connected between the experimental cabinet 24 and the exhaust fan 26.
The speed can be switched so that the exhaust air volume of the experimental cabinet 24 can be changed in two stages according to the breeding and experimental work. A high-performance filter 28 is also provided between the experimental cabinet 24 and the exhaust fan 26 so that the contaminated air is not discharged to the outside.
【０００７】作業室２１と前室２２とは、それぞれの定
風量装置２７Ａ、２７Ｂとによって給気風量を一定に保
つと共に、作業室２１と前室２２との間に配置された差
圧計３１からの差圧信号によって制御装置３２が作動
し、作業室２１が前室２２に対して常に陰圧を保つよう
に、変風量装置２９Ａ、２９Ｂの流量を互いに調整して
いる。これによって、作業室２１と前室２２との間に
は、例えば３０（Ｐａ）の差圧が常に保持されるように
制御されており、前室２２から作業室２１に流れる一方
向の気流を形成している。[0007] The working chamber 21 and the front chamber 22 maintain a constant supply air volume by means of respective constant air volume devices 27A and 27B, and a differential pressure gauge 31 disposed between the working chamber 21 and the front chamber 22. The control device 32 is operated by the differential pressure signal, and the flow rates of the variable air flow devices 29A and 29B are adjusted with each other so that the working chamber 21 always maintains a negative pressure with respect to the front chamber 22. Thus, a differential pressure of, for example, 30 (Pa) is controlled between the work room 21 and the front room 22 so that a one-way airflow flowing from the front room 22 to the work room 21 is controlled. Has formed.
【０００８】実験用キャビネット２４は、実験作業時に
は扉３０の開度が大きいので、動物が発する汚染物質が
外部に漏れないようにその排気風量を大にしているが、
実験終了後には扉の開度を小さくして飼育状態に戻すた
めに、その排気風量を大から小に変更することになる。
この過程では、実験用キャビネット２４からの排気風量
の減少に追随して作業室２１の室圧が上昇する。In the laboratory cabinet 24, the opening of the door 30 is large at the time of the experimental work. Therefore, the exhaust air volume of the experimental cabinet 24 is large so that the pollutants emitted from the animals do not leak to the outside.
After the experiment is completed, the exhaust air volume is changed from large to small in order to reduce the opening of the door and return to the breeding state.
In this process, the room pressure of the work room 21 increases following the decrease in the exhaust air volume from the experimental cabinet 24.
【０００９】そこで、センサー３１からの差圧信号によ
る、制御装置３２からの指令が変風量装置２９Ａと２９
Ｂを作動させ、フィードバック制御によって変風量装置
２９Ｂの流量を増大させるように制御して、作業室２１
の上昇した室圧を下げて、空気の流れの方向を前室２２
から作業室２１及び作業室２１から実験用キャビネット
２４に向かうように調整している。Therefore, a command from the control device 32 based on a differential pressure signal from the sensor 31 is transmitted to the variable air flow devices 29A and 29A.
B is operated to increase the flow rate of the variable air volume device 29B by feedback control.
The raised chamber pressure is reduced, and the direction of the air flow is
From the work room 21 and from the work room 21 to the laboratory cabinet 24.
【００１０】しかして、上記制御の第１ステップであ
る、実験用キャビネットの排気風量を大から小に変更す
るためのモータダンパーＭＤの操作は短時間で完了する
が、上記制御の第２ステップに相当する、変風量装置２
９Ｂの流量を必要風量に増大させるための調整は、第１
ステップの操作よりも多くの時間を要する。即ち、第２
ステップの制御は、作業室２１の室圧上昇の信号を差圧
計３１から制御装置３２が受けることで、変風量装置２
９Ａと２９Ｂとを制御するものであるが、センサー３１
の感応速度に比べて変風量装置２９Ａ、２９Ｂの応答速
度が鈍く、室圧の制御をフィードバック制御で行うと、
実験用キャビネットの排気風量を大から小に操作する第
１ステップの制御よりも多くの時間を要するからであ
る。The operation of the motor damper MD for changing the exhaust air volume of the experimental cabinet from large to small, which is the first step of the above control, is completed in a short time. Corresponding variable air volume device 2
The adjustment for increasing the flow rate of 9B to the required air volume is the first adjustment.
Takes more time than step operations. That is, the second
The control of the step is performed by the control device 32 receiving the signal of the room pressure increase of the work room 21 from the differential pressure gauge 31, and
9A and 29B are controlled.
When the response speed of the variable air volume devices 29A and 29B is slower than the response speed of
This is because more time is required than in the first step of controlling the exhaust air volume of the experimental cabinet from large to small.
【００１１】このために、変風量装置２９Ａと２９Ｂと
のフィードバック制御によって、室圧が実験終了前の規
定の状態に回復する時間内には、作業室２１の室圧が前
室２２の室圧よりも高くなる状況が起こることで、作業
室２１から前室２２に逆流を生じるという問題が発生す
る。For this reason, by the feedback control of the variable air flow devices 29A and 29B, the chamber pressure of the working chamber 21 is reduced to the chamber pressure of the front chamber 22 within a time period in which the chamber pressure recovers to a specified state before the end of the experiment. When a higher situation occurs, a problem arises in that backflow from the work room 21 to the front room 22 occurs.
【００１２】[0012]
【発明が解決しようとする課題】本発明は、上記の問題
に鑑みて検討されたものであり、前室、作業室及び実験
用キャビネット間の室圧差を制御せずに、各室からの排
気風量を直接的に制御することによって、各室間の空気
の流れを汚染物質の方向に維持できるように構成した高
度安全施設とその制御方法を提供している。DISCLOSURE OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has been made in consideration of the above problems. The present invention provides an advanced safety facility and a control method therefor configured to maintain the flow of air between the rooms in the direction of pollutants by directly controlling the air volume.
【００１３】[0013]
【課題を解決するための手段】本発明による高度安全施
設は、前室と、前室と扉で接続する作業室及び作業室の
内部に在って作業室と開度調整可能な扉で連通し汚染物
質を内在している実験用キャビネットから構成され、前
室と作業室に接続する固定式給気装置と前室に接続する
定風量装置及び作業室と実験用キャビネットに接続する
可変風量型定風量装置を装備して、作業室と実験用キャ
ビネットとの合計排気風量を一定値に維持しながら、作
業室と実験用キャビネットとの排気風量の比率を実験用
キャビネットの扉の開度調整に連動させて制御すること
を特徴にしており、前室、作業室及び実験用キャビネッ
ト間の室圧差を制御することなく、各室からの排気風量
のみを直接制御することで汚染度の低い部分から汚染度
の高い部分へと各室間の空気の流れを常に一方向に維持
している。SUMMARY OF THE INVENTION An advanced safety facility according to the present invention is provided with a front room, a work room connected to the front room by a door, and a work room inside the work room, which communicates with a door whose opening can be adjusted. A fixed air supply device connected to the front room and the work room, a constant air volume device connected to the front room, and a variable air flow device connected to the work room and the laboratory cabinet. Equipped with a constant air volume device to maintain the total exhaust air volume of the working room and the experimental cabinet at a constant value, and adjust the ratio of the exhaust air volume between the working room and the experimental cabinet to adjust the opening of the door of the experimental cabinet. It is characterized by controlling in conjunction with each other, without directly controlling only the exhaust air volume from each room without controlling the room pressure difference between the front room, the working room and the laboratory cabinet. Each to highly contaminated areas The flow of air between is always maintained in one direction.
【００１４】又、本発明による高度安全施設は、上記の
高度安全施設において、給気装置を固定式ダンパーにす
ることを特徴としており、上記機能に加えて、給気装置
のコストを削減している。Further, the high safety facility according to the present invention is characterized in that the air supply device is a fixed damper in the high safety facility described above, and in addition to the above functions, the cost of the air supply device is reduced. I have.
【００１５】本発明による高度安全施設の制御方法は、
本発明による高度安全施設の制御方法であって、前室と
作業室に接続する固定式給気装置の開度を所定値に固定
して給気し、前室の排気風量を定風量に制御すると共
に、作業室と実験用キャビネットとの排気風量を可変に
して、作業室と実験用キャビネットとの合計排気風量を
一定値に維持しながら作業室と実験用キャビネットとの
排気風量の比率を実験用キャビネットの扉の開度に連動
させて制御することを特徴としており、各室からの排気
風量を直接的に制御することで、実験用キャビネットの
扉の開度の如何や作業室と前室間の扉の開閉に拘わら
ず、汚染度の低い部分から汚染度の高い部分へと各室間
の空気の流れを一方向に維持している。[0015] The control method for a highly safe facility according to the present invention is as follows.
A method for controlling a high-safety facility according to the present invention, wherein a fixed air supply device connected to a front room and a work room is supplied with air at a fixed opening degree, and the exhaust air volume of the front room is controlled to a constant air volume. At the same time, the exhaust air volume between the working room and the experimental cabinet was made variable, and the ratio of the exhaust air volume between the working room and the experimental cabinet was tested while maintaining the total exhaust air volume between the working room and the experimental cabinet at a constant value. It is characterized in that it is controlled in conjunction with the opening of the cabinet cabinet door, and by directly controlling the exhaust air volume from each room, the degree of opening of the laboratory cabinet door, the working room and the front room Irrespective of the opening and closing of the door between them, the air flow between the rooms is maintained in one direction from the low contamination level to the high contamination level.
【００１６】[0016]
【発明の実施の形態】本発明による高度安全施設は、前
室と、前室と扉で接続する作業室及び作業室の内部に在
って作業室と開度調整可能な扉で連通し汚染物質を内在
している実験用キャビネットから構成され、前室と作業
室に接続する固定式給気装置と前室に接続する定風量装
置及び作業室と実験用キャビネットに接続する可変風量
型定風量装置を装備して、作業室と実験用キャビネット
との合計排気風量を一定値に維持しながら、作業室と実
験用キャビネットとの排気風量の比率を実験用キャビネ
ットの扉の開度調整に連動させて制御し、扉の開度に拘
わらず各室間の空気の流れを汚染度の低い部分から高い
部分への一方向に維持している。BEST MODE FOR CARRYING OUT THE INVENTION A high-safety facility according to the present invention comprises a front room, a work room connected to the front room by a door, and a work room inside the work room which is communicated with a work room through a door whose opening can be adjusted to cause contamination. Consisting of a laboratory cabinet containing a substance, a fixed air supply device connected to the front room and the work room, a constant air volume device connected to the front room, and a variable air flow type constant air volume connected to the work room and the laboratory cabinet Equipped with the device, while maintaining the total exhaust air volume of the working room and the experimental cabinet at a constant value, the ratio of the exhaust air volume between the working room and the experimental cabinet is linked to the adjustment of the opening of the door of the experimental cabinet. The air flow between the chambers is maintained in one direction from a low-polluted portion to a high-polluted portion regardless of the opening degree of the door.
【００１７】以下に、本発明の実施の形態を図面に基づ
いて説明するが、理解を容易にするために、従来と同様
の装置等については同符号を付している。Hereinafter, embodiments of the present invention will be described with reference to the drawings. To facilitate understanding, the same reference numerals are given to the same devices and the like as those in the related art.
【００１８】図１は、本発明による高度安全施設とその
制御方法を適用した一実施形態であるＢＨ施設の概要図
である。FIG. 1 is a schematic diagram of a BH facility which is an embodiment to which a highly safe facility and a control method thereof according to the present invention are applied.
【００１９】ＢＨ施設１は、従来例と同様に作業室２１
と前室２２及びその間のドア２３から構成されており、
作業室２１に汚染物質を発生する動物実験を実施するた
めに、開度調整が可能な扉６を備えた実験用キャビネッ
ト２４を配置することも同様である。The BH facility 1 has a work room 21 as in the prior art.
And a front room 22 and a door 23 therebetween,
The same applies to the case where an experiment cabinet 24 having the door 6 whose opening can be adjusted is arranged in the work room 21 in order to carry out an animal experiment for generating pollutants.
【００２０】本発明を適用したＢＨ施設１では、ＢＨ施
設１に給気ファン２５と排気ファン２６とが配置され
て、外気の供給と室内からの排気を行っているが、給気
ファン２５と各室間には、従来のＢＨ施設２０と異なっ
て固定式ダンパー２、２’と高性能フィルタ２８を配置
しており、固定式ダンパー２、２’の風量制御を廃止す
ることで、従来のように定風量装置２７Ａ、Ｂと変風量
装置２９Ａ、Ｂもしくは変風量装置２９Ａ、Ｂ間の相互
干渉で発生する外乱等を回避して、制御系統の簡素化を
図ると共にＢＨ施設の設備コストを低減している。In the BH facility 1 to which the present invention is applied, an air supply fan 25 and an exhaust fan 26 are arranged in the BH facility 1 to supply outside air and exhaust air from the room. Different from the conventional BH facility 20, fixed dampers 2, 2 'and a high-performance filter 28 are arranged between the respective rooms, and by eliminating the air flow control of the fixed dampers 2, 2', the conventional damper 2, 2 'is used. In this way, the control system can be simplified and the equipment cost of the BH facility can be reduced by avoiding disturbances caused by mutual interference between the constant air volume devices 27A, B and the variable air volume devices 29A, B or the variable air volume devices 29A, B. Has been reduced.
【００２１】又、前室２２と排気ファン２６との間に
は、定風量装置３と高性能フィルタ２８が配置されて、
作業室２１と実験用キャビネット２４とに接続されてい
る排気ファン２６との間には、可変風量型定風量装置
４、５と高性能フィルタ２８とが配置されており、それ
ぞれに稼働することで汚染空気が外部に排出されないよ
うに運転制御されている。A constant air volume device 3 and a high-performance filter 28 are disposed between the front chamber 22 and the exhaust fan 26.
Variable air volume type constant air volume devices 4 and 5 and a high-performance filter 28 are arranged between the work room 21 and the exhaust fan 26 connected to the laboratory cabinet 24, and each of them operates to operate. The operation is controlled so that the polluted air is not discharged outside.
【００２２】作業室２１と前室２２とは、それぞれの固
定式ダンパー２、２’の開度を所定値に設定すると共
に、作業室２１に対する前室２２からの空気の流れを常
に一方向に維持させるために、作業室２１と実験用キャ
ビネット２４からの合計された総排気風量を一定値に保
持しながら、作業室２１に接続の可変風量型定風量装置
４と実験用キャビネット２４に接続の可変風量型定風量
装置５との流量比率を変更できるように制御装置７によ
って制御されている。The work chamber 21 and the front chamber 22 set the degree of opening of each of the fixed dampers 2 and 2 'to a predetermined value, and always allow the air flow from the front chamber 22 to the work chamber 21 to be in one direction. In order to maintain the total exhaust air volume from the working room 21 and the experimental cabinet 24 at a constant value, the variable air volume type constant air volume device 4 connected to the working room 21 and the experimental cabinet 24 are connected. The controller 7 is controlled so that the flow rate ratio with the variable air volume type constant air volume device 5 can be changed.
【００２３】即ち、実験作業時に、動物が発する汚染物
質が外部に漏れないようにその排気風量を大にしている
実験用キャビネット２４が、実験中に扉６の開度を変え
たり、実験終了後に扉６の開度を小さくして飼育状態に
戻すことで、実験用キャビネット２４の排気風量が変動
したり大から小に変更する場合でも、前室２２及び作業
室２１の固定式ダンパー２、２’の開度や前室２２に接
続する定風量装置３の排気風量の設定は制御することな
くそのままにして、作業室２１からの合計された総排気
風量を一定値に保持しながら、作業室２１と実験用キャ
ビネット２４からの各排気風量の比率を変えることで対
応している。That is, the experiment cabinet 24, which has a large exhaust air volume so as to prevent the contaminants emitted from the animals from leaking to the outside during the experiment operation, changes the opening of the door 6 during the experiment, or after the experiment is over. By reducing the opening of the door 6 and returning to the breeding state, even when the exhaust air volume of the experimental cabinet 24 fluctuates or changes from large to small, the fixed dampers 2, 2, 2 The opening degree of 'and the setting of the exhaust air volume of the constant air volume device 3 connected to the front chamber 22 are not controlled, and the total exhaust air volume from the operating chamber 21 is maintained at a constant value. This is dealt with by changing the ratio of the exhaust air volume from the experimental cabinet 21 to the experimental cabinet 24.
【００２４】そして、実験用キャビネット２４の排気風
量の切り替えと作業室２１の排気風量の切り替えとは、
給気側の固定式ダンパー２と前室の定風量装置３を所定
値に設定したままで同時に制御していることで、従来例
で発生していた実験用キャビネット２４からの排気風量
の減少に追随する作業室２１の室圧上昇を回避すること
になって、作業室２１と前室２２との各室圧は変化しな
いことから両室間には一定の室圧差が維持され、結果的
に、前室２２から作業室２１への空気流の方向は一定方
向に維持される。The switching of the exhaust air volume of the experimental cabinet 24 and the switching of the exhaust air volume of the work room 21 are as follows.
Since the fixed damper 2 on the air supply side and the constant air volume device 3 in the front chamber are simultaneously controlled while being set to a predetermined value, it is possible to reduce the exhaust air volume from the experimental cabinet 24 generated in the conventional example. A rise in the chamber pressure of the following work room 21 is avoided, and the respective room pressures of the work room 21 and the front room 22 do not change. Therefore, a constant room pressure difference is maintained between the two rooms. The direction of the air flow from the front chamber 22 to the working chamber 21 is maintained in a constant direction.
【００２５】又、上記制御によると、実験用キャビネッ
ト２４の扉６の開度調整が行われている間に、前室２２
と作業室２１とを接続しているドア２３を開閉しても、
前室２２の給、排気風量の設定と作業室２１の給、排気
風量の設定とはその設定比率において変化のないことか
ら、後述するようにドア２３の開放によって前室２２と
作業室２１との室圧が同じになっても、空気流としては
前室２２から作業室２１へと流れ方向が維持されてい
る。According to the above control, while the opening of the door 6 of the laboratory cabinet 24 is being adjusted, the front room 22
Opening and closing the door 23 connecting the
Since there is no change in the setting ratio between the supply and exhaust air volume of the front chamber 22 and the supply and exhaust air volume of the work chamber 21, the door 23 is opened to open the front chamber 22 and the work chamber 21 as described later. Even if the chamber pressures are the same, the flow direction of the air flow from the front chamber 22 to the working chamber 21 is maintained.
【００２６】以上のように、本発明による高度安全施設
は、実験用キャビネットの排気風量を含めた作業室から
の合計された総排気風量を一定値に制御するように、各
室の給排気風量を予め設定することで、各室間の室圧差
はこれを考慮する必要がないことを特徴にしているの
で、従来における室圧差制御方式のように、実験用キャ
ビネットの排気風量を大から小に変更するモータダンパ
ーＭＤの操作時間内に、作業室における変風量装置の風
量増大が追随できないために発生する作業室の室圧が前
室に対して陽圧になることで、作業室から前室の間に生
ずる逆流現象や風量装置間の相互干渉等による外乱現象
を阻止している。As described above, the high-safety facility according to the present invention controls the supply / exhaust air volume of each room so that the total exhaust air volume from the working room including the exhaust air volume of the experimental cabinet is controlled to a constant value. By setting in advance, it is not necessary to consider the room pressure difference between each room, so the exhaust air volume of the experimental cabinet is reduced from large to small as in the conventional room pressure difference control method. During the operation time of the motor damper MD to be changed, the room pressure in the working room generated because the increase in the air volume of the variable air volume device in the working room cannot follow up becomes positive pressure with respect to the front room. And the disturbance phenomenon due to mutual interference between the air volume devices and the like.
【００２７】次に、本発明による高度安全施設の制御方
法について説明する。本発明による制御方法では、上述
のＢＨ施設１において、前室と作業室に接続する固定式
給気装置の開度を所定値に固定して給気し、前室の排気
風量も定風量に制御している。Next, a control method for a highly secure facility according to the present invention will be described. In the control method according to the present invention, in the BH facility 1 described above, air is supplied by fixing the opening degree of the fixed air supply device connected to the front room and the work room to a predetermined value, and the exhaust air volume of the front room is also set to a constant air volume. Controlling.
【００２８】一方、作業室と実験用キャビネットとの排
気風量は可変にしてあり、作業室と実験用キャビネット
との合計される総排気風量を一定値に維持しながら、作
業室と実験用キャビネットとの排気風量の比率を実験用
キャビネットの扉の開度に連動させて制御しており、各
室からの排気風量を直接的に制御することで、実験用キ
ャビネットの扉の開度の如何や作業室と前室間の扉の開
閉に拘わらず、汚染度の低い部分から汚染度の高い部分
へと各室間の空気の流れを一方向に維持している。On the other hand, the exhaust air volume between the working room and the experimental cabinet is variable, and the total amount of exhaust air from the working room and the experimental cabinet is maintained at a constant value while the exhaust air volume between the working room and the experimental cabinet is kept constant. The ratio of the exhaust air volume of the laboratory cabinet is controlled in conjunction with the opening of the door of the experimental cabinet, and by directly controlling the exhaust air volume from each room, the degree of opening of the door of the experimental cabinet can be controlled. Irrespective of the opening and closing of the door between the room and the front room, the flow of air between the rooms is maintained in one direction from the low contamination level to the high contamination level.
【００２９】以下に、本制御方法の作動状態を実施の形
態に基づいて説明する。本発明による制御方法を適用し
ているたＢＨ施設１は、上述のように作業室２１と前室
２２及びその間を連絡するドア２３から構成され、作業
室２１内に開度調整が可能な扉６を備えた実験用キャビ
ネット２４を配備しており、汚染物質を発生する動物の
実験作業時には、実験用キャビネット２４の扉６の開度
が大になるが、実験用キャビネット２４では扉６の開度
に対応する制御装置７が、可変風量型定風量装置５を機
能させて排気風量を大にすると共に、実験終了後には、
小さくなる扉６の開度に対応させて可変風量型定風量装
置５を機能させて排気風量を大から小に変更している。The operation of the control method will be described below based on an embodiment. The BH facility 1 to which the control method according to the present invention is applied includes the work room 21, the front room 22, and the door 23 communicating between the work room 21 and the door whose opening can be adjusted in the work room 21 as described above. The laboratory cabinet 24 equipped with the experimental cabinet 24 is provided, and the door 6 of the experimental cabinet 24 has a large opening at the time of an experiment on an animal that generates pollutants. The control device 7 corresponding to the degree causes the variable air volume type constant air volume device 5 to function to increase the exhaust air volume, and after the end of the experiment,
The variable air volume type constant air volume device 5 is operated in accordance with the opening degree of the door 6 to be reduced, and the exhaust air volume is changed from large to small.
【００３０】又、実験作業時、実験終了時のいずれの場
合にも、ドア２３を通して前室２２から作業室２１に向
かう空気の流れは一方向に維持されなければならない
が、本発明による制御方法では、実験用キャビネット２
４の扉６の開度に対応する制御装置７が、可変風量型定
風量装置５と共に可変風量型定風量装置４をも流量を変
化させており、いずれの場合においても、作業室２１か
らの排気風量と実験用キャビネット２４からの排気風量
とを合計した総排気風量を一定値に設定していること
で、実験用キャビネット２４の開度変更にも拘わらず、
作業室２１と前室２２との差圧が一定に保たれることか
ら、気流の一方向性が維持されることになる。In both the experimental work and the end of the experiment, the air flow from the front room 22 to the work room 21 through the door 23 must be maintained in one direction. Then, experiment cabinet 2
The control device 7 corresponding to the opening degree of the door 6 changes the flow rate of the variable air volume type constant air volume device 4 together with the variable air volume type constant air volume device 5. By setting the total exhaust air volume, which is the sum of the exhaust air volume and the exhaust air volume from the experimental cabinet 24, to a constant value, despite the change in the opening degree of the experimental cabinet 24,
Since the pressure difference between the working chamber 21 and the front chamber 22 is kept constant, one-way airflow is maintained.
【００３１】しかして、ドア２３を開放した際にも、定
風量装置３による前室２２からの排気風量が一定である
ことと、上述したように作業室２１からの総排気風量が
一定であることとから、固定式ダンパー２’から作業室
２１への給気風量が減少する分だけ、固定式ダンパー２
から前室２２への給気風量が増加し、その増加分がドア
２３を通じて前室２２から作業室２１に流れ込むことに
なり、これによって、ドア２３が開放してもドア２３を
通じての一方向の風量が増加して、作業室から前室への
汚染空気の飛散が防止され、高度安全施設としての安全
性が維持されている。Thus, even when the door 23 is opened, the exhaust air volume from the front chamber 22 by the constant air volume device 3 is constant, and the total exhaust air volume from the work chamber 21 is constant as described above. Therefore, the fixed damper 2 is reduced by the amount of air supplied from the fixed damper 2 ′ to the work chamber 21.
From the front room 22 to the work room 21 through the door 23, so that even if the door 23 is opened, one-way The air volume is increased, and the scattering of the contaminated air from the work room to the front room is prevented, and the safety as a highly safe facility is maintained.
【００３２】次に、上記の制御方法によって、ＢＨ施設
１における所望の作動状況が確実に遂行されることを確
認する。Next, it is confirmed that a desired operation state in the BH facility 1 is reliably performed by the above-described control method.
【００３３】図２は、実験用キャビネット２４の扉６の
開度を最大にする実験作業時における各部位と、実験用
キャビネット２４に結合した定風量装置３、作業室２１
と実験用キャビネット２４とに結合した可変風量型定風
量装置４、５の機器の圧力と流量の値を表示している。FIG. 2 shows each part of the experimental cabinet 24 at the time of the experimental work for maximizing the opening degree of the door 6, the constant air volume device 3 connected to the experimental cabinet 24, and the work room 21.
The values of the pressure and the flow rate of the devices of the variable air volume type constant air volume devices 4 and 5 connected to the experiment cabinet 24 are displayed.
【００３４】図２（ａ）は、実験作業時における各部位
と機器の圧力と流量の値であり、前室２２に結合されて
いる定風量装置３、作業室２１に結合されている可変風
量型定風量装置４及び実験用キャビネット２４に結合さ
れている可変風量型定風量装置５の流量をそれぞれに設
定した場合の圧力と流量の値である。FIG. 2A shows the values of the pressure and the flow rate of each part and the equipment during the experimental work, and the constant air volume device 3 connected to the front room 22 and the variable air volume connected to the work room 21. The values of the pressure and the flow rate when the flow rates of the fixed flow rate apparatus 4 and the variable flow rate type fixed flow rate apparatus 5 connected to the experimental cabinet 24 are respectively set.
【００３５】本実施の形態における実験作業時では、定
風量装置３の設定流量は、２３０ｍ 3／ｈに設定される
のに対して、可変風量型定風量装置４と可変風量型定風
量装置５の設定流量は、１７０ｍ3／ｈと６２０ｍ3／ｈ
であって、合計した設定流量は７９０ｍ3／ｈに制御さ
れている。At the time of the experimental work in this embodiment,
The set flow rate of the air volume device 3 is 230 m Three/ H
In contrast, the variable air volume type constant air volume device 4 and the variable air volume type constant air volume
The set flow rate of the quantity device 5 is 170 mThree/ H and 620mThree/ H
And the total set flow rate is 790 mThree/ H controlled
Have been.
【００３６】そして、これらの流量を維持するための前
室２２に結合されている固定式ダンパー２の流量と作業
室２１に結合されている固定式ダンパー２’の流量と
は、２３３ｍ3／ｈと７８７ｍ3／ｈに設定されているこ
とから、結果としてドアからの流れは、３ｍ3／ｈにな
ると共に、作業室２１と前室２２との各流量は、７９０
ｍ3／ｈと２３３ｍ3／ｈであり、給気ファンの各数値は
２８７Ｐａと１０２０ｍ 3／ｈ、排気ファンの各数値は
−２８５Ｐａと１０２０ｍ3／ｈと、給・排気量がバラ
ンスしている。Before maintaining these flow rates,
Flow and work of the fixed damper 2 connected to the chamber 22
Flow rate of the fixed damper 2 'connected to the chamber 21;
Is 233mThree/ H and 787mThree/ H
From the result, the flow from the door is 3mThree/ H
At the same time, each flow rate of the working chamber 21 and the front chamber 22 is 790
mThree/ H and 233mThree/ H, and each numerical value of the air supply fan is
287 Pa and 1020 m Three/ H, each value of exhaust fan
-285Pa and 1020mThree/ H and supply / displacement
Is running.
【００３７】当然のことながら、この場合における作業
室２１の圧力は、−５２Ｐａであり、前室２２の圧力
は、−２２Ｐａになっており、作業室２１と前室２２と
の間の空気の流れは前室２２から作業室２１への一方向
に維持されている。Naturally, in this case, the pressure in the working chamber 21 is −52 Pa, and the pressure in the front chamber 22 is −22 Pa. The flow is maintained in one direction from the front room 22 to the work room 21.
【００３８】尚、図２（ｂ）には、実験用キャビネット
２４の扉６の開度を大にした場合における、上記の固定
式ダンパーの各流量、各可変風量型定風量装置の設定流
量及び前室２２から作業室２１へのドアからの流れ関連
を示しており、同時に、作業室２１と前室２２との室圧
状態を表示している。FIG. 2B shows the flow rates of the fixed damper, the set flow rates of the variable air flow type constant air flow devices, and the flow rates when the opening of the door 6 of the experimental cabinet 24 is increased. The flow relation from the door from the front room 22 to the work room 21 is shown, and at the same time, the room pressure state between the work room 21 and the front room 22 is displayed.
【００３９】図３は、実験用キャビネット２４の扉６の
開度を小さくした実験終了時における各部位と、実験用
キャビネット２４に結合した定風量装置３、作業室２１
と実験用キャビネット２４とに結合した可変風量型定風
量装置４、５の機器の圧力と流量の値を表示している。FIG. 3 shows each part at the end of the experiment in which the opening of the door 6 of the experimental cabinet 24 is reduced, the constant air volume device 3 connected to the experimental cabinet 24, and the work room 21.
The values of the pressure and the flow rate of the devices of the variable air volume type constant air volume devices 4 and 5 connected to the experiment cabinet 24 are displayed.
【００４０】図３（ａ）は、実験終了時における同様の
各部位と機器の圧力と流量の値である。FIG. 3A shows the values of the pressure and the flow rate of the same parts and devices at the end of the experiment.
【００４１】実験終了時には、実験用キャビネット２４
を飼育状態に戻すことで、汚染物質が作業室２１内に漏
れる可能性が減少することから、実験用キャビネット２
４に結合されている可変風量型定風量装置５の排気流量
を、扉６に連動している制御装置７によって大から小に
変更させるように制御しているが、この場合でも、作業
室２１からの排気風量と実験用キャビネット２４からの
排気風量とは、その組み合わせを変更するのみで、両排
気風量を合計した値は一定値を維持するように設定して
ある。At the end of the experiment, the experimental cabinet 24
Is returned to the breeding state, the possibility that contaminants leak into the working room 21 is reduced.
Although the control device 7 linked to the door 6 controls the exhaust flow rate of the variable air volume type constant air volume device 5 connected to 4 to be changed from large to small, even in this case, the work room 21 Only the combination of the exhaust air volume from the experiment cabinet 24 and the exhaust air volume from the experimental cabinet 24 is changed, and the sum of the two exhaust air volumes is set to maintain a constant value.
【００４２】即ち、可変風量型定風量装置３の設定流量
は、２３０ｍ3／ｈで実験時の値と同様であるが、可変
風量型定風量装置４と可変風量型定風量装置５の流量
は、４３０ｍ3／ｈと３６０ｍ3／ｈと、その設定流量を
変えて互いの風量は逆転状態に制御しているものの、両
排気風量を合計した総排気流量は７９０ｍ3／ｈと実験
時と同様のままである。That is, while the set flow rate of the variable air volume type constant air volume device 3 is 230 m 3 / h, which is the same as the value in the experiment, the flow volume of the variable air volume type constant air volume device 4 and the variable air volume type constant air volume device 5 is 430 m 3 / h and 360 m 3 / h, while the set flow rate is changed to control the air flow in the opposite direction, the total exhaust flow rate of both exhaust air flows is 790 m 3 / h, the same as in the experiment. Remains.
【００４３】そして、前室２２に結合されている固定式
ダンパー２の流量は、２３３ｍ3／ｈ、作業室２１に結
合されている固定式ダンパー２’の流量は７８７ｍ3／
ｈと実験時と同様値に維持されており、ドアからの流れ
も３ｍ3／ｈになっている。[0043] Then, the flow rate of the fixed damper 2 which is coupled to the front chamber 22, 233m 3 / h, the flow rate of the fixed damper 2 'which is coupled to the working chamber 21 is 787m 3 /
h is maintained at the same value as in the experiment, and the flow from the door is also 3 m 3 / h.
【００４４】又、給気ファンの各数値も２８７Ｐａと１
０２０ｍ3／ｈ、排気ファンの各数値は−２８５Ｐａと
１０２０ｍ3／ｈと、実験作業時と同じ値である。The values of the air supply fan were 287 Pa and 1
020m 3 / h, each numerical value of the exhaust fan and -285Pa and 1020m 3 / h, which is the same value as the experiment work.
【００４５】従って、この場合における作業室２１と前
室２２の圧力も、−５２Ｐａ、−２２Ｐａになって、作
業室２１と前室２２との間の空気の流れは一定方向に維
持されたままである。Accordingly, in this case, the pressures in the working chamber 21 and the front chamber 22 are also -52 Pa and -22 Pa, and the air flow between the working chamber 21 and the front chamber 22 is maintained in a certain direction. is there.
【００４６】図３（ｂ）は、図２（ｂ）と同様に、上記
の固定式ダンパーの各流量、各可変風量型定風量装置の
設定流量及び前室２２から作業室２１へのドアからの流
れ関連を示しており、同時に、作業室２１と前室２２と
の室圧状態を表示している。FIG. 3 (b) shows, similarly to FIG. 2 (b), each flow rate of the above-mentioned fixed damper, the set flow rate of each variable air volume type constant air volume device, and the door from the front chamber 22 to the work chamber 21. At the same time, and at the same time, the state of the room pressure between the work room 21 and the front room 22 is displayed.
【００４７】図４は、扉６の開度を大きくした実験用キ
ャビネット２４での実験作業時において、作業室２１と
前室２２との間にあるドア２３を開放した場合における
各部位と、実験用キャビネット２４に結合した定風量装
置３、作業室２１と実験用キャビネット２４とに結合し
た可変風量型定風量装置４、５の機器の圧力と流量の値
を表示している。FIG. 4 shows each part when the door 23 between the work room 21 and the front room 22 is opened during the experiment work in the experiment cabinet 24 in which the opening of the door 6 is increased. The values of the pressure and the flow rate of the devices of the constant air volume device 3 connected to the cabinet 24 and the variable air volume type constant air volume devices 4 and 5 connected to the work room 21 and the experimental cabinet 24 are displayed.
【００４８】図４（ａ）は、実験作業時において作業室
２１と前室２２との間にあるドア２３を開放した場合の
各部位と機器の圧力と流量の値である。FIG. 4A shows the values of the pressure and the flow rate of each part and the equipment when the door 23 between the working room 21 and the front room 22 is opened during the experimental work.
【００４９】実験作業時においてドア２３を開放した場
合の各部位と機器の圧力と流量の値は、図示のように、
定風量装置３の設定流量は、２３０ｍ3／ｈであって、
可変風量型定風量装置４の設定流量１７０ｍ3／ｈと可
変風量型定風量装置５の設定流量６２０ｍ3／ｈとを合
計した総流量は、図２（ａ）で示した実験作業時におけ
る合計の総流量と同じ７９０ｍ3／ｈであるが、作業室
２１と前室２２との圧力は、ドア２３の開放によっても
同じ値の３３２Ｐａである。When the door 23 is opened during the experimental work, the values of the pressure and flow rate of each part and the equipment are as shown in the figure.
The set flow rate of the constant air volume device 3 is 230 m 3 / h,
The total flow is the sum of the set flow rate 620 m 3 / h setting of the variable air volume type constant air volume system 4 flow 170m 3 / h and variable air volume type constant air volume device 5, the total at the time of experimental work shown in FIGS. 2 (a) 790 m 3 / h, which is the same as the total flow rate, but the pressure in the working chamber 21 and the front chamber 22 is the same value of 332 Pa even when the door 23 is opened.
【００５０】一方、前室２２に結合されている固定式ダ
ンパー２の流量が２３３ｍ3／ｈから増大して２４４ｍ3
／ｈであるのに対して、可変風量型定風量装置３の設定
流量は、２３０ｍ3／ｈであることから、前室２２に
は、１４（＝２４４−２３０）ｍ3／ｈの空気が残留す
ることになる。On the other hand, the flow rate of the fixed damper 2 which is coupled to the front chamber 22 is increased from 233m 3 / h 244m 3
/ H, whereas the set flow rate of the variable air volume type constant air volume device 3 is 230 m 3 / h, so that 14 (= 244−230) m 3 / h air is supplied to the front chamber 22. Will remain.
【００５１】他方では、作業室２１における固定式ダン
パー２’の流量は７８８ｍ3／ｈから減少して７７６ｍ3
／ｈであるのに対して、可変風量型定風量装置４、５の
合計した総流量は、７９０ｍ3／ｈであることから、作
業室２１では、−１４（＝７７６−７９０）ｍ3／ｈと
なって、１４ｍ3／ｈの空気が不足することになる。[0051] On the other hand, the flow rate of the fixed damper 2 'in the working chamber 21 decreases from 788m 3 / h 776m 3
/ H, whereas the total total flow rate of the variable air volume type constant air volume devices 4 and 5 is 790 m 3 / h, so in the work room 21 -14 (= 776-790) m 3 / h, which means that 14 m 3 / h of air is insufficient.
【００５２】このために、作業室２１と前室２２との間
では、両室の圧力差が零状態になるように開放されたド
アを通って空気の流動が発生し、前室２２から作業室２
１へへの流量は１４ｍ3／ｈと、閉鎖されたドアの隙間
を通っての流量３ｍ3／ｈから増大する状態を形成して
いる。For this reason, air flows between the working chamber 21 and the front chamber 22 through a door that is opened so that the pressure difference between the two chambers becomes zero, and the working chamber 21 and the front chamber 22 work. Room 2
The flow to 1 is 14 m 3 / h, forming a situation which increases from a flow of 3 m 3 / h through the closed door gap.
【００５３】尚、図４（ｂ）には、上記の固定式ダンパ
ーの各流量、各可変風量型定風量装置の設定流量及び前
室２２から作業室２１へのドアからの流れ関連を示して
おり、同時に、作業室２１と前室２２との室圧状態を表
示している。FIG. 4B shows the relationship between the flow rate of the fixed damper, the set flow rate of each variable air flow type constant air flow device, and the flow from the front chamber 22 to the work chamber 21 through the door. At the same time, the state of the room pressure between the work room 21 and the front room 22 is displayed.
【００５４】そして、この状態を維持するための給気フ
ァンの各数値は、２８７Ｐａと１０２０ｍ3／ｈであ
り、排気ファンの各数値は、−２８５Ｐａと１０２０ｍ
3／ｈであって、実験作業時と同値のままである。The values of the air supply fan for maintaining this state are 287 Pa and 1020 m 3 / h, and the values of the exhaust fan are -285 Pa and 1020 m 3 / h.
3 / h, which is the same value as in the experimental work.
【００５５】従って、作業室２１の実験用キャビネット
２４で実験作業を続けながら、作業室２１と前室２２と
の間にあるドア２３を開放した場合にも、従来施設のよ
うに、作業室と前室との間に室圧差を形成する必要性か
ら各室と結合した変風量装置ヲ制御することで室圧の調
整をしなくても、作業室２１の可変風量型定風量装置４
と実験用キャビネット２４の可変風量型定風量装置５と
を直接制御するのみで、作業室２１と前室２２間の空気
の流れを一方向に維持することができる。Therefore, even if the door 23 between the work room 21 and the front room 22 is opened while the experiment work is continued in the test cabinet 24 of the work room 21, the work room is not connected to the work room as in the conventional facility. The variable air volume device coupled to each room from the necessity of forming a room pressure difference between the front room and the variable air volume type constant air volume device 4 of the work room 21 without controlling the room pressure by controlling.
The air flow between the working chamber 21 and the front chamber 22 can be maintained in one direction only by directly controlling the variable air volume type constant air volume device 5 of the laboratory cabinet 24.
【００５６】上記説明で明らかなように、本発明による
制御方法は、前室２２に結合されている定風量装置３を
一定風量に設定した状態で固定し、作業室２１の可変風
量型定風量装置４と実験用キャビネット２４の可変風量
型定風量装置５との合計した総風量を一定値に維持しな
がら、両可変風量型定風量装置の風量の組み合わせを２
段階もしくは無段階に設定して置き、実験用キャビネッ
ト２４の実験終了時と実験時もしくは実験時の扉の開度
に連動させてこれを切替制御するものであるが、これに
よって、実験用キャビネットでの実験終了時と実験時の
いずれかにおいて作業室と前室との間のドアを開閉した
としても、各室間の空気の流れを常に汚染度の低い部分
から汚染度の高い部分へと一方向に維持できる。As is apparent from the above description, the control method according to the present invention is such that the constant air volume device 3 connected to the front chamber 22 is fixed at a fixed air volume, and the variable air volume type While maintaining the total air volume of the device 4 and the variable air volume type constant air volume device 5 of the experimental cabinet 24 at a constant value, the combination of the air volume of both variable air volume type constant air volume devices is 2
It is set in a step or stepless manner, and is switched and controlled in accordance with the opening of the door at the end of the experiment of the experimental cabinet 24 and at the time of the experiment or at the time of the experiment. Even if the door between the working room and the front room is opened or closed either at the end of the experiment or at the time of the experiment, the air flow between the rooms always changes from the low-contamination level to the high-contamination level. Direction can be maintained.
【００５７】以上のように、本発明による高度安全施設
と制御方法は、前室と、前室と扉で接続する作業室及び
作業室の内部に在って作業室と開度調整可能な扉で連通
し汚染物質を内在している実験用キャビネットから構成
され、前室と作業室に接続する固定式給気装置と前室に
接続する定風量装置及び作業室と実験用キャビネットに
接続する可変風量型定風量装置を装備して、作業室と実
験用キャビネットとの合計排気風量を一定値に維持しな
がら、作業室と実験用キャビネットとの排気風量の比率
を実験用キャビネットの扉の開度に連動させて制御し、
扉の開度に拘わらず各室間の空気の流れを汚染度の低い
部分から高い部分へ一方向に維持しており、従来のよう
に作業室における変風量装置の風量増大が実験用キャビ
ネットの扉の作動に追随できないことで、作業室の室圧
が前室に対して陽圧をなることから、作業室から前室に
逆流を生ずる現象や風量装置間の相互干渉による外乱等
の現象を阻止している。As described above, the advanced safety facility and the control method according to the present invention provide a front room, a work room connected to the front room by a door, and a door which can be adjusted in opening with the work room inside the work room. Consists of a laboratory cabinet that contains contaminants in communication with a fixed air supply device connected to the front room and the work room, a constant air volume device connected to the front room, and a variable air supply device connected to the work room and the laboratory cabinet Equipped with an air volume type constant air volume device, while maintaining the total exhaust air volume of the working room and the experimental cabinet at a constant value, the ratio of the exhaust air volume of the working room and the experimental cabinet to the opening of the door of the experimental cabinet Control in conjunction with
Regardless of the degree of opening of the door, the flow of air between the rooms is maintained in one direction from the low pollution level to the high pollution level. Since the room pressure in the working room becomes positive with respect to the front room due to the inability to follow the door operation, phenomena such as backflow from the working room to the front room and disturbances due to mutual interference between the air volume devices are reduced. It is blocking.
【００５８】以上、本発明を実施の形態に基づいて詳細
に説明してきたが、本発明による高度安全施設とその制
御方法は、上記実施の形態に何ら限定されるものでな
く、高度安全施設の内部設備と用途、実験用キャビネッ
トでの実験内容等、発明の趣旨に反しない範囲におい
て、各種の変更が可能であることは当然である。As described above, the present invention has been described in detail based on the embodiments. However, the high-safety facility and the control method thereof according to the present invention are not limited to the above-described embodiments, and are not limited to the above-described embodiments. Naturally, various changes can be made within the range not inconsistent with the gist of the invention, such as the internal equipment and use, the content of the experiment in the experimental cabinet, and the like.
【００５９】[0059]
【発明の効果】本発明による高度安全施設は、前室と、
前室と扉で接続する作業室及び作業室の内部に在って作
業室と開度調整可能な扉で連通し汚染物質を内在してい
る実験用キャビネットから構成され、前室と作業室に接
続する固定式給気装置と前室に接続する定風量装置及び
作業室と実験用キャビネットに接続する可変風量型定風
量装置を装備して、作業室と実験用キャビネットとの合
計排気風量を一定値に維持しながら、作業室と実験用キ
ャビネットとの排気風量の比率を実験用キャビネットの
扉の開度調整に連動させて制御することを特徴にしてお
り、前室、作業室及び実験用キャビネット間の室圧差を
制御することなく、各室からの排気風量のみを直接制御
することで汚染度の低い部分から汚染度の高い部分へと
各室間の空気の流れを常に一方向に維持できる効果を奏
している。The highly safe facility according to the present invention comprises a front room,
It consists of a working room connected to the front room by a door, and a laboratory cabinet that is inside the working room and communicates with the working room through an adjustable door and contains contaminants. Equipped with a fixed air supply device to be connected, a constant air volume device to be connected to the front room, and a variable air volume type constant air volume device to be connected to the work room and the experimental cabinet, so that the total exhaust air volume of the work room and the experimental cabinet is constant. The ratio of the exhaust air volume between the working room and the laboratory cabinet is controlled in conjunction with the adjustment of the opening of the door of the laboratory cabinet while maintaining the value at the value, and the front room, the working room and the laboratory cabinet are controlled. By directly controlling only the exhaust air volume from each chamber without controlling the pressure difference between the chambers, the flow of air between the chambers can be always maintained in one direction from the low-polluting section to the high-polluting section. It has an effect.
【００６０】又、本発明による高度安全施設は、上記高
度安全施設において、給気装置を固定式ダンパーにする
ことを特徴としており、上記効果に加えて、給気装置の
コストを削減できる効果を奏している。Further, the advanced safety facility according to the present invention is characterized in that the air supply device is a fixed damper in the advanced safety facility, and in addition to the above-described effects, the effect of reducing the cost of the air supply device is provided. I'm playing.
【００６１】本発明による高度安全施設の制御方法は、
本発明による高度安全施設の制御方法であって、前室と
作業室に接続する固定式給気装置の開度を所定値に固定
して給気し、前室の排気風量を定風量に制御すると共
に、作業室と実験用キャビネットとの排気風量を可変に
して、作業室と実験用キャビネットとの合計排気風量を
一定値に維持しながら作業室と実験用キャビネットとの
排気風量の比率を実験用キャビネットの扉の開度に連動
させて制御することを特徴としており、各室からの排気
風量を直接的に制御することで、実験用キャビネットの
扉の開度や作業室と前室間の扉を開閉しても汚染度の低
い部分から汚染度の高い部分へと各室間の空気の流れを
一方向に維持できる効果を奏している。The control method for a highly safe facility according to the present invention is as follows.
A method for controlling a high-safety facility according to the present invention, wherein a fixed air supply device connected to a front room and a work room is supplied with air at a fixed opening degree, and the exhaust air volume of the front room is controlled to a constant air volume. At the same time, the exhaust air volume between the working room and the experimental cabinet was made variable, and the ratio of the exhaust air volume between the working room and the experimental cabinet was tested while maintaining the total exhaust air volume between the working room and the experimental cabinet at a constant value. The control is linked to the opening of the door of the laboratory cabinet, and by directly controlling the exhaust air volume from each room, the opening of the door of the experimental cabinet and the space between the work room and the front room are controlled. Even when the door is opened and closed, the air flow between the rooms can be maintained in one direction from the low contamination level to the high contamination level.
【 図１】本発明による高度安全施設の概要図FIG. 1 is a schematic diagram of an advanced safety facility according to the present invention.
【 図２】本発明における実験時の流量設定と空気流の
状態図FIG. 2 is a diagram showing a flow rate setting and an air flow during an experiment according to the present invention.
【 図３】本発明における飼育時の流量設定と空気流の
状態図FIG. 3 is a diagram showing the flow rate setting and the air flow during rearing according to the present invention.
【 図４】本発明において実験時にドアを開放した際の
空気流の状態図FIG. 4 is a diagram showing the state of air flow when a door is opened during an experiment in the present invention.
【 図５】従来の高度安全施設の概要図Fig. 5 Schematic diagram of a conventional high-safety facility
【符号の説明】 １ ＢＨ施設、 ２、２’ 固定式ダンパー、 ３ 定
風量装置、４、５ 可変風量型定風量装置、 ６ 扉、
７ 制御装置、２０ ＢＨ施設、 ２１ 作業室、
２２ 前室、 ２３ ドア、２４ 実験用キャビネッ
ト、 ２５ 給気ファン、 ２６ 排気ファン、２７
Ａ、２７Ｂ 定風量装置、 ２８ 高性能フィルタ、２
９Ａ、２９Ｂ 変風量装置、 ３０ 扉、 ３１ 差圧
計、３２ 制御装置、[Description of Signs] 1 BH facility, 2, 2 'fixed damper, 3 constant air volume device, 4, 5 variable air volume type constant air volume device, 6 doors,
7 control device, 20 BH facility, 21 work room,
22 front room, 23 door, 24 laboratory cabinet, 25 air supply fan, 26 exhaust fan, 27
A, 27B Constant air volume device, 28 high-performance filter, 2
9A, 29B Variable air volume device, 30 door, 31 Differential pressure gauge, 32 Control device,
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 3L058 BF09 BG04 3L061 BF08 4G057 AA08 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3L058 BF09 BG04 3L061 BF08 4G057 AA08
Claims (3)
作業室の内部に在って作業室と開度調整可能な扉で連通
し汚染物質を内在している実験用キャビネットから構成
される高度安全施設であって、前室と作業室に接続する
固定式給気装置、前室に接続する定風量装置、作業室と
実験用キャビネットに接続する可変風量型定風量装置か
ら成り、作業室と実験用キャビネットとの合計排気風量
を一定値に維持しながら作業室と実験用キャビネットと
の排気風量の比率を実験用キャビネットの扉の開度調整
に連動させて制御することを特徴とする高度安全施設。The present invention relates to: a front chamber; a working chamber connected to the front chamber by a door; and a laboratory cabinet which is inside the working chamber and communicates with the working chamber through a door whose opening can be adjusted and contains contaminants. This is a high-safety facility composed of a fixed air supply device connected to the front room and the work room, a constant air volume device connected to the front room, and a variable air volume type constant air volume device connected to the work room and the laboratory cabinet. The ratio of the exhaust air volume between the working room and the experimental cabinet is controlled in conjunction with the opening adjustment of the door of the experimental cabinet while maintaining the total exhaust air volume of the working room and the experimental cabinet at a constant value. And advanced safety facilities.
を特徴とする請求項１に記載の高度安全施設。2. The highly secure facility according to claim 1, wherein the air supply device is a fixed damper.
設の制御方法であって、前室と作業室に接続する固定式
給気装置の開度を所定値に固定して給気し、前室の排気
風量を定風量に制御すると共に、作業室と実験用キャビ
ネットとの排気風量を可変にして、作業室と実験用キャ
ビネットとの合計排気風量を一定値に維持しながら作業
室と実験用キャビネットとの排気風量の比率を実験用キ
ャビネットの扉の開度に連動させて制御することを特徴
とする高度安全施設の制御方法。3. The method for controlling a highly secure facility according to claim 1, wherein the fixed type air supply device connected to the front room and the work room is fixed at a predetermined opening degree to supply air. The exhaust air volume of the front room is controlled to a constant air volume, and the exhaust air volume of the working room and the experimental cabinet is made variable, so that the total exhaust air volume of the working room and the experimental cabinet is maintained at a constant value. A method for controlling an advanced safety facility, wherein a ratio of an exhaust air volume to an experimental cabinet is controlled in conjunction with an opening of a door of the experimental cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000345949A JP4558175B2 (en) | 2000-11-13 | 2000-11-13 | Advanced safety facility and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000345949A JP4558175B2 (en) | 2000-11-13 | 2000-11-13 | Advanced safety facility and its control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002147827A true JP2002147827A (en) | 2002-05-22 |
| JP4558175B2 JP4558175B2 (en) | 2010-10-06 |
Family
ID=18819900
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000345949A Expired - Lifetime JP4558175B2 (en) | 2000-11-13 | 2000-11-13 | Advanced safety facility and its control method |
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| Country | Link |
|---|---|
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| JP2006223207A (en) * | 2005-02-18 | 2006-08-31 | Sanyo Electric Co Ltd | Cell-culturing facility |
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| JP2007024370A (en) * | 2005-07-14 | 2007-02-01 | Dai-Dan Co Ltd | Air conditioning system |
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| JP2008190817A (en) * | 2007-02-07 | 2008-08-21 | Dai-Dan Co Ltd | Room pressure control system using multistage cav |
| JP2011133221A (en) * | 2011-02-09 | 2011-07-07 | Dai-Dan Co Ltd | Air conditioning system |
| JP2012177540A (en) * | 2012-05-18 | 2012-09-13 | Azbil Corp | Device and method for controlling room pressure |
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| JP2006292280A (en) * | 2005-04-11 | 2006-10-26 | Dai-Dan Co Ltd | Air conditioning system |
| JP2006317082A (en) * | 2005-05-13 | 2006-11-24 | Dai-Dan Co Ltd | Air-conditioning system |
| JP4630125B2 (en) * | 2005-05-13 | 2011-02-09 | ダイダン株式会社 | Air conditioning system |
| JP2007024370A (en) * | 2005-07-14 | 2007-02-01 | Dai-Dan Co Ltd | Air conditioning system |
| JP2008014523A (en) * | 2006-07-03 | 2008-01-24 | Daikin Ind Ltd | Air conditioning system |
| JP2008190818A (en) * | 2007-02-07 | 2008-08-21 | Dai-Dan Co Ltd | Room pressure control system using multistage cav |
| JP2008190817A (en) * | 2007-02-07 | 2008-08-21 | Dai-Dan Co Ltd | Room pressure control system using multistage cav |
| JP2011133221A (en) * | 2011-02-09 | 2011-07-07 | Dai-Dan Co Ltd | Air conditioning system |
| JP2012177540A (en) * | 2012-05-18 | 2012-09-13 | Azbil Corp | Device and method for controlling room pressure |
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