JP5271050B2 - Hume food management system and management method - Google Patents

Hume food management system and management method Download PDF

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JP5271050B2
JP5271050B2 JP2008296446A JP2008296446A JP5271050B2 JP 5271050 B2 JP5271050 B2 JP 5271050B2 JP 2008296446 A JP2008296446 A JP 2008296446A JP 2008296446 A JP2008296446 A JP 2008296446A JP 5271050 B2 JP5271050 B2 JP 5271050B2
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air volume
exhaust air
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昭男 松村
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Azbil Corp
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Description

本発明は、研究施設、工場、病院など、作業者の安全や製造物に対して危険を伴う環境において、発生する有毒ガス等を局所排気するヒュームフードに関するものであり、特に作業者の安全に関わるデータを取得して安全な作業環境かどうかを判断するヒュームフード管理システムに関するものである。   The present invention relates to a fume hood that locally exhausts toxic gas generated in laboratories such as research facilities, factories, hospitals, etc. in environments where there is a danger to the safety of workers or products, and in particular to the safety of workers. The present invention relates to a fume hood management system that obtains related data and determines whether or not the work environment is safe.

化学実験では、実験作業過程において、人体に有害なガスや粉塵等が発生する場合が多い。これら有害物質の室内への拡散を防止し、人体への汚染を防ぐ装置の１つにヒュームフードがある。一般に、ヒュームフードは、上下または左右に開閉可能なサッシドア付きの囲い（エンクロージャ）を備えており、実験室の作業者はこのサッシドアからエンクロージャ内にアクセスすることができる。ヒュームフードで作業中の作業者が有害なガスや粉塵等に曝されないようにするために、エンクロージャは有害物質を除去する排気装置に接続されている。   In chemical experiments, gases and dusts that are harmful to the human body are often generated in the course of experimental work. A fume hood is one of devices that prevent the diffusion of these harmful substances into the room and prevent contamination of the human body. In general, the fume hood is provided with an enclosure (enclosure) with a sash door that can be opened and closed vertically or horizontally, and a laboratory worker can access the enclosure from the sash door. To prevent workers working in the fume hood from being exposed to harmful gases, dust, etc., the enclosure is connected to an exhaust system that removes harmful substances.

従来、ヒュームフードを管理するヒュームフード管理システムでは、小規模な給排気設備で多くのヒュームフードを設置することを目的として、ダイバーシティ（同時利用率）という思想を給排気設備設計に用いている。ダイバーシティとは、個別実験装置の最大性能の合算値よりも小さい容量で設備を設計することである。ダイバーシティを用いた設計の利点は前述のとおり、小規模な給排気設備で多くのヒュームフードを設置できることである。その半面、欠点として想定した同時利用率を上回って使用された場合、設備容量を超え、安全な使用環境を損なう可能性があった。   Conventionally, in a fume hood management system that manages fume hoods, the concept of diversity (simultaneous utilization) is used in the design of supply and exhaust facilities for the purpose of installing a large number of fume hoods with small-scale supply and exhaust facilities. Diversity is the design of equipment with a capacity smaller than the sum of the maximum performances of the individual experimental devices. As described above, the advantage of the design using diversity is that a large number of fume hoods can be installed in a small-scale air supply / exhaust system. On the other hand, when it is used in excess of the simultaneous utilization rate assumed as a defect, there is a possibility that the facility capacity will be exceeded and the safe use environment may be impaired.

そこで、従来のヒュームフード管理システムでは、各ヒュームフードから稼動状態を示すデータを収集し、このデータに基づいて利用中のヒュームフードの同時利用台数を算出し、この同時利用台数をヒュームフードの全台数で割った同時利用率を演算し、この同時利用率を実績値として表示するようにしていた（特許文献１参照）。また、特許文献１に開示されたヒュームフード管理システムでは、複数のヒュームフードが接続された排気系統によって排出可能な最大の排気風量である設計最大排気風量と稼動状態のヒュームフードの瞬時排気風量の総和である最大排気風量との差を安全マージンとし、最大排気風量と安全マージンの実績値を表示するようにしていた。   Therefore, in the conventional fume hood management system, data indicating the operating state is collected from each fume hood, the number of simultaneous use of the fume hood is calculated based on this data, and this number of simultaneous use is calculated for all the fume hoods. The simultaneous usage rate divided by the number of units was calculated, and this simultaneous usage rate was displayed as an actual value (see Patent Document 1). In the fume hood management system disclosed in Patent Document 1, the design maximum exhaust air volume that is the maximum exhaust air volume that can be discharged by an exhaust system to which a plurality of fume hoods are connected, and the instantaneous exhaust air volume of the operating fume hood. The difference between the maximum exhaust air volume, which is the sum, is used as the safety margin, and the actual exhaust air volume and the actual margin value are displayed.

特許第３７４５７１５号公報Japanese Patent No. 3745715

特許文献１に開示されたヒュームフード管理システムでは、同時利用率、最大排気風量、安全マージンといった情報を表示している。しかしながら、これらの情報は、給排気設備設計が妥当かどうかの判断データとして使用したり、設備改修時の基礎データとして使用したりすることも想定されているため、ヒュームフードを使用する作業者にとっては理解し難く、危険が迫っているのかもう少し余裕があるのかを作業者が即座に理解し難いという問題点があった。   In the fume hood management system disclosed in Patent Document 1, information such as the simultaneous utilization rate, the maximum exhaust air volume, and the safety margin is displayed. However, this information is also assumed to be used as judgment data for determining whether the design of the supply and exhaust facilities is appropriate, or as basic data for equipment renovation. Is difficult to understand, and it is difficult for the operator to immediately understand whether the danger is imminent or a little more.

本発明は、上記課題を解決するためになされたもので、ヒュームフードを使用する作業者に危険が迫っていることを瞬時に通報することができるヒュームフード管理システムおよび管理方法を提供することを目的とする。   The present invention has been made to solve the above-described problem, and provides a fume hood management system and a management method capable of instantaneously reporting that a worker using a fume hood is in danger. Objective.

本発明のヒュームフード管理システムは、開閉可能なサッシを備えた複数のヒュームフードから稼働状態を表すデータを収集する収集手段と、この収集されたデータに基づいて各ヒュームフードの瞬時排気風量の合計値を算出する演算手段と、前記瞬時排気風量の合計値が予め想定される最大排気風量を超えたときに、警報発生を通知する警報通知手段とを備え、前記最大排気風量は、前記複数のヒュームフードが接続された排気系統によって排出可能な排気風量の限界値を下回る値に予め設定され、前記警報通知手段は、前記警報発生後に、前記瞬時排気風量の合計値が前記最大排気風量以下になったときに、正常状態に復旧したことを通知することを特徴とするものである。
また、本発明のヒュームフード管理システムは、開閉可能なサッシを備えた複数のヒュームフードから稼働状態を表すデータを収集する収集手段と、この収集されたデータに基づいて各ヒュームフードの瞬時排気風量の合計値を算出し、この瞬時排気風量の合計値と予め想定される最大排気風量とから負荷率を算出する演算手段と、前記負荷率が所定の閾値を超えたときに、警報発生を通知する警報通知手段と、各ヒュームフードを使用する作業者に前記負荷率のデータを通知するデータ出力手段とを備え、前記最大排気風量は、前記複数のヒュームフードが接続された排気系統によって排出可能な排気風量の限界値を下回る値に予め設定され、前記警報通知手段は、前記警報発生後に、前記負荷率が前記閾値以下になったときに、正常状態に復旧したことを通知することを特徴とするものである。 The fume hood management system of the present invention includes a collection means for collecting data representing an operating state from a plurality of fume hoods having sashes that can be opened and closed, and a sum of instantaneous exhaust airflows of the respective fume hoods based on the collected data. Calculation means for calculating a value, and alarm notification means for notifying the occurrence of an alarm when the total value of the instantaneous exhaust air volume exceeds a presumed maximum exhaust air volume , wherein the maximum exhaust air volume is the plurality of exhaust air flows. A value lower than the limit value of the exhaust air volume that can be discharged by the exhaust system to which the fume hood is connected is preset, and the alarm notification means sets the total value of the instantaneous exhaust air volume below the maximum exhaust air volume after the alarm is generated. When this happens, it is notified that the normal state has been restored .
Further, the fume hood management system of the present invention includes a collection means for collecting data representing an operating state from a plurality of fume hoods having sashes that can be opened and closed, and an instantaneous exhaust air volume of each fume hood based on the collected data. The calculation means for calculating the load factor from the total value of the instantaneous exhaust air volume and the maximum exhaust air volume assumed in advance, and the occurrence of an alarm when the load factor exceeds a predetermined threshold And a data output means for notifying workers using each fume hood of the load factor data, and the maximum exhaust air volume can be discharged by an exhaust system to which the plurality of fume hoods are connected. Is set in advance to a value lower than the limit value of the exhaust air volume, and the alarm notification means is in a normal state when the load factor becomes equal to or less than the threshold after the alarm is generated. It is characterized in that to inform that it has recovered.

また、本発明のヒュームフード管理方法は、開閉可能なサッシを備えた複数のヒュームフードから稼働状態を表すデータを収集する収集手順と、この収集されたデータに基づいて各ヒュームフードの瞬時排気風量の合計値を算出する演算手順と、前記瞬時排気風量の合計値が予め想定される最大排気風量を超えたときに、警報発生を通知する警報通知手順とを備え、前記最大排気風量は、前記複数のヒュームフードが接続された排気系統によって排出可能な排気風量の限界値を下回る値に予め設定され、前記警報通知手順は、前記警報発生後に、前記瞬時排気風量の合計値が前記最大排気風量以下になったときに、正常状態に復旧したことを通知する手順を含むことを特徴とするものである。
また、本発明のヒュームフード管理方法は、開閉可能なサッシを備えた複数のヒュームフードから稼働状態を表すデータを収集する収集手順と、この収集されたデータに基づいて各ヒュームフードの瞬時排気風量の合計値を算出し、この瞬時排気風量の合計値と予め想定される最大排気風量とから負荷率を算出する演算手順と、前記負荷率が所定の閾値を超えたときに、警報発生を通知する警報通知手順と、各ヒュームフードを使用する作業者に前記負荷率のデータを通知するデータ出力手順とを備え、前記最大排気風量は、前記複数のヒュームフードが接続された排気系統によって排出可能な排気風量の限界値を下回る値に予め設定され、前記警報通知手順は、前記警報発生後に、前記負荷率が前記閾値以下になったときに、正常状態に復旧したことを通知する手順を含むことを特徴とするものである。 Further, the fume hood management method of the present invention includes a collection procedure for collecting data representing an operating state from a plurality of fume hoods having sashes that can be opened and closed, and an instantaneous exhaust air volume of each fume hood based on the collected data. And an alarm notification procedure for notifying the occurrence of an alarm when the total value of the instantaneous exhaust air volume exceeds a presumed maximum exhaust air volume, and the maximum exhaust air volume is calculated as follows: The exhaust air volume that can be discharged by an exhaust system connected to a plurality of fume hoods is preset to a value that is lower than a limit value of the exhaust air volume, and the alarm notification procedure is configured such that after the alarm occurs, the total value of the instantaneous exhaust air volume is the maximum exhaust air volume. It includes a procedure for notifying that the normal state has been restored when the following conditions are met .
Further, the fume hood management method of the present invention includes a collection procedure for collecting data representing an operating state from a plurality of fume hoods having sashes that can be opened and closed, and an instantaneous exhaust air volume of each fume hood based on the collected data. The calculation procedure for calculating the load factor from the total value of the instantaneous exhaust air flow and the maximum exhaust air flow assumed in advance, and the occurrence of an alarm when the load factor exceeds a predetermined threshold And a data output procedure for notifying workers using each fume hood of the load factor data, and the maximum exhaust air volume can be discharged by an exhaust system to which the plurality of fume hoods are connected. The alarm notification procedure returns to a normal state when the load factor falls below the threshold after the alarm is generated. In which characterized in that it comprises a procedure of notifying that the.

本発明によれば、各ヒュームフードの瞬時排気風量の合計値を算出し、瞬時排気風量の合計値が予め想定される最大排気風量を超えたときに、警報発生を通知するようにしたので、各ヒュームフードを使用する作業者に、危険が迫っていることを通知することができる。本発明では、ヒュームフードの複数台同時利用の安全圏内で作業可能な状態にある場合には、警報が発生しないので、作業者は安全でストレスのない環境で作業することができる。   According to the present invention, the total value of the instantaneous exhaust air volume of each fume hood is calculated, and when the total value of the instantaneous exhaust air volume exceeds a presumed maximum exhaust air volume, an alarm is generated. The worker who uses each fume hood can be notified that the danger is imminent. In the present invention, when a work can be performed in a safe area where a plurality of fume hoods are used simultaneously, no alarm is generated, so that the worker can work in a safe and stress-free environment.

また、本発明では、各ヒュームフードの瞬時排気風量の合計値を算出し、瞬時排気風量の合計値と予め想定される最大排気風量とから負荷率を算出し、負荷率が所定の閾値を超えたときに、警報発生を通知するようにしたので、各ヒュームフードを使用する作業者に、危険が迫っていることを通知することができる。本発明では、ヒュームフードの複数台同時利用の安全圏内で作業可能な状態にある場合には、警報が発生しないので、作業者は安全でストレスのない環境で作業することができる。   Further, in the present invention, the total value of the instantaneous exhaust air volume of each fume hood is calculated, the load factor is calculated from the total value of the instantaneous exhaust air volume and the presumed maximum exhaust air volume, and the load factor exceeds a predetermined threshold value. When an alarm occurs, an alarm is notified, so that the worker who uses each fume hood can be notified that the danger is imminent. In the present invention, when a work can be performed in a safe area where a plurality of fume hoods are used simultaneously, no alarm is generated, so that the worker can work in a safe and stress-free environment.

また、本発明では、作業者に負荷率のデータを通知するようにしたので、作業者が事前にまたは作業中に設備の負荷状況を知ることができる。その結果、負荷率のデータを見た作業者がヒュームフードの使用を見送るといった自己抑制を期待できるので、ヒュームフードの使用者が次々と増えて設備の負荷が限界に近づくといった危険性を回避することができ、安全な環境を作業者に提供することができる。   In the present invention, since the load factor data is notified to the worker, the worker can know the load status of the facility in advance or during the work. As a result, it is possible to expect self-suppression that workers who look at the load factor data forego the use of the fume hood, thereby avoiding the danger that the number of fume hood users will increase one after another and the load on the equipment will approach the limit. It is possible to provide a safe environment to workers.

［第１の実施の形態］
以下、本発明の実施の形態について図面を参照して説明する。図１は本発明の第１の実施の形態に係るヒュームフード管理システムの構成を示すブロック図である。ヒュームフード管理システムは、複数のヒュームフード１と、各ヒュームフード１から稼働状態を表すデータを収集し、ヒュームフード１の排気バルブ６を制御する複数の排気バルブコントローラ２と、収集されたデータに基づいて安全な作業環境かどうかを判断する監視装置３と、各排気バルブコントローラ２と監視装置３とを接続するネットワーク４とを有する。図１に示した各ヒュームフード１は、全て同一の排気系統７に接続され、排気されるものとし、排気系統７の末端には排気ファン８が設けられている。 [First Embodiment]
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a fume hood management system according to a first embodiment of the present invention. The fume hood management system collects a plurality of fume hoods 1, data representing an operating state from each fume hood 1, a plurality of exhaust valve controllers 2 that control the exhaust valves 6 of the fume hood 1, and the collected data A monitoring device 3 that determines whether the working environment is safe based on the network, and a network 4 that connects each exhaust valve controller 2 to the monitoring device 3 are provided. The fume hoods 1 shown in FIG. 1 are all connected to the same exhaust system 7 and exhausted, and an exhaust fan 8 is provided at the end of the exhaust system 7.

図２は排気バルブコントローラ２と監視装置３の構成を示すブロック図である。排気バルブコントローラ２は、各ヒュームフード１から稼働状態を表すデータを収集するデータ収集部２０と、データを記憶するデータ記憶部２１と、収集したデータを基にヒュームフード１の排気バルブ６を制御する制御部２２と、収集したデータを監視装置３に送信するデータ送信部２３と、監視装置３からの警報通知信号または復旧通知信号を受信する警報受信部２４と、警報通知信号に応じた警報通知または復旧通知信号に応じた復旧通知を行う警報出力部２５とを有する。   FIG. 2 is a block diagram showing the configuration of the exhaust valve controller 2 and the monitoring device 3. The exhaust valve controller 2 controls the exhaust valve 6 of the fume hood 1 based on the collected data, the data collection unit 20 that collects data representing the operating state from each fume hood 1, the data storage unit 21 that stores the data. A control unit 22, a data transmission unit 23 that transmits the collected data to the monitoring device 3, an alarm reception unit 24 that receives an alarm notification signal or a recovery notification signal from the monitoring device 3, and an alarm corresponding to the alarm notification signal And an alarm output unit 25 for performing a recovery notification according to the notification or the recovery notification signal.

監視装置３は、各排気バルブコントローラ２からのデータを受信するデータ受信部３０と、データを記憶するデータ記憶部３１と、受信したデータに基づいて各ヒュームフード１の瞬時排気風量の合計値を算出する演算部３２と、瞬時排気風量の合計値が予め想定される最大排気風量を超えたときに警報通知信号を出力し、警報発生後に瞬時排気風量の合計値が最大排気風量以下になったときに復旧通知信号を出力する警報通知部３３と、警報通知信号または復旧通知信号を各排気バルブコントローラ２へ送信する警報送信部３４とを有する。   The monitoring device 3 includes a data receiving unit 30 that receives data from each exhaust valve controller 2, a data storage unit 31 that stores data, and a total value of the instantaneous exhaust air volume of each fume hood 1 based on the received data. An alarm notification signal is output when the total value of the calculation unit 32 and the instantaneous exhaust air volume exceeds a presumed maximum exhaust air volume, and the total value of the instantaneous exhaust air volume becomes equal to or less than the maximum exhaust air volume after the alarm is generated. An alarm notification unit 33 that sometimes outputs a recovery notification signal and an alarm transmission unit 34 that transmits the alarm notification signal or the recovery notification signal to each exhaust valve controller 2 are provided.

以下、ヒュームフード管理システムの動作について説明する。図３は排気バルブコントローラ２の動作を示すフローチャート、図４は監視装置３の動作を示すフローチャートである。   Hereinafter, the operation of the fume hood management system will be described. FIG. 3 is a flowchart showing the operation of the exhaust valve controller 2, and FIG. 4 is a flowchart showing the operation of the monitoring device 3.

各排気バルブコントローラ２のデータ収集部２０は、それぞれ対応するヒュームフード１から稼働状態を示すデータを定期的に収集する（図３ステップＳ１００）。データは、瞬時排気風量のみの場合、瞬時排気風量とサッシ開度とからなる場合、瞬時排気風量とサッシ開度と人検知センサの検知結果（作業者の在／不在）とからなる場合などがあり、ヒュームフード１の形式によって収集可能なデータが異なる。データ収集部２０が収集したデータは、データ記憶部２１に格納される（ステップＳ１０１）。
各排気バルブコントローラ２のデータ送信部２３は、それぞれ対応するヒュームフード１から収集されたデータを監視装置３へ送信する（ステップＳ１０２）。 The data collection unit 20 of each exhaust valve controller 2 periodically collects data indicating the operating state from the corresponding fume hood 1 (step S100 in FIG. 3). The data may include instantaneous exhaust air volume, sash opening, instantaneous exhaust air volume, sash opening, and human detection sensor detection results (presence / absence of worker). Yes, the data that can be collected differs depending on the format of the fume hood 1. The data collected by the data collection unit 20 is stored in the data storage unit 21 (step S101).
The data transmission unit 23 of each exhaust valve controller 2 transmits the data collected from the corresponding fume hood 1 to the monitoring device 3 (step S102).

各排気バルブコントローラ２の制御部２２は、それぞれ対応するヒュームフード１から収集されたデータに基づいて排気風量を制御する（ステップＳ１０３）。サッシ開度に応じてヒュームフード１の排気風量を変化させる変風量（VAV:Variable Air Volume ）方式の場合、各排気バルブコントローラ２の制御部２２は、それぞれ対応するヒュームフード１のサッシ５の開度が２０％以下のときは最小排気風量にし、同開度が５０％のときは排気風量を５０％にし、同開度が１００％のときは排気風量を１００％にするといったように、サッシ５の開度に応じてヒュームフード１の排気バルブ６を調節して排気風量を変化させる。   The control unit 22 of each exhaust valve controller 2 controls the exhaust air volume based on the data collected from the corresponding fume hood 1 (step S103). In the case of a variable air volume (VAV) method that changes the exhaust air volume of the fume hood 1 according to the sash opening, the control unit 22 of each exhaust valve controller 2 opens the sash 5 of the corresponding fume hood 1. When the degree is 20% or less, the sash is set to the minimum exhaust air volume, the exhaust air volume is set to 50% when the opening is 50%, and the exhaust air volume is set to 100% when the opening is 100%. The exhaust air volume is changed by adjusting the exhaust valve 6 of the fume hood 1 according to the opening of 5.

また、作業者がいない場合は排気風量を低下させるＵＢＣ（Usage Based Controls（登録商標））方式の場合、各排気バルブコントローラ２の制御部２２は、それぞれ対応するヒュームフード１に設置された人検知センサ（不図示）により、ヒュームフード１の前に作業者がいるかどうかを確認し、作業者がいるときには排気バルブ６を調節して排気風量を増やし、作業者がいないときには安全な待機レベルまで排気風量を低下させる。   Further, in the case of the UBC (Usage Based Controls (registered trademark)) system that reduces the exhaust air volume when there is no worker, the control unit 22 of each exhaust valve controller 2 detects the person installed in the corresponding fume hood 1. A sensor (not shown) confirms whether there is an operator in front of the fume hood 1 and adjusts the exhaust valve 6 to increase the exhaust air volume when there is an operator, and exhausts to a safe standby level when there is no operator. Reduce airflow.

各排気バルブコントローラ２の警報受信部２４は、監視装置３から警報通知信号または復旧通知信号を受信したかどうかを判定する（ステップＳ１０４）。警報通知信号、復旧通知信号のいずれも受信しない場合は、ステップＳ１００に戻る。こうして、ステップＳ１００〜Ｓ１０４の処理が繰り返し実行される。   The alarm receiver 24 of each exhaust valve controller 2 determines whether an alarm notification signal or a recovery notification signal has been received from the monitoring device 3 (step S104). If neither the alarm notification signal nor the recovery notification signal is received, the process returns to step S100. In this way, the processing of steps S100 to S104 is repeatedly executed.

一方、監視装置３のデータ受信部３０は、排気バルブコントローラ２からデータを受信すると（図４ステップＳ２００においてＹＥＳ）、受信したデータをデータ記憶部３１に格納する（ステップＳ２０１）。
続いて、監視装置３の演算部３２は、各排気バルブコントローラ２から受信したデータに基づいて、各ヒュームフード１の瞬時排気風量の合計値を算出する（ステップＳ２０２）。 On the other hand, when receiving data from the exhaust valve controller 2 (YES in step S200 in FIG. 4), the data receiving unit 30 of the monitoring device 3 stores the received data in the data storage unit 31 (step S201).
Subsequently, the calculation unit 32 of the monitoring device 3 calculates the total value of the instantaneous exhaust air volume of each fume hood 1 based on the data received from each exhaust valve controller 2 (step S202).

警報通知部３３は、演算部３２が算出した瞬時排気風量の合計値と予め想定される排気風量の最大値である最大排気風量とを比較する（ステップＳ２０３）。最大排気風量は、排気系統７によって排出可能な排気風量の限界値を若干下回る値に設定されており、瞬時排気風量の合計値が最大排気風量を超えたとしても、作業者にとって直ぐに危険な状態にはならない値に予め設定されている。   The alarm notification unit 33 compares the total value of the instantaneous exhaust air volume calculated by the calculation unit 32 with the maximum exhaust air volume that is the maximum value of the exhaust air volume assumed in advance (step S203). The maximum exhaust air volume is set to a value slightly below the limit value of the exhaust air volume that can be discharged by the exhaust system 7, and even if the total instantaneous exhaust air volume exceeds the maximum exhaust air volume, it is immediately dangerous for the operator. It is set in advance to a value that does not.

警報通知部３３は、演算部３２が算出した瞬時排気風量の合計値が最大排気風量を超える場合（ステップＳ２０３においてＹＥＳ）、警報が発生したと判定し、警報送信部３４を通じて各排気バルブコントローラ２へ警報通知信号を送信する（ステップＳ２０４）。また、警報通知部３３は、排気バルブコントローラ２への警報通知後に、瞬時排気風量の合計値が最大排気風量以下になった場合（ステップＳ２０５においてＹＥＳ）、警報発生状態から正常状態に復旧したと判定し、警報送信部３４を通じて各排気バルブコントローラ２へ復旧通知信号を送信する（ステップＳ２０６）。こうして、ステップＳ２００〜Ｓ２０６の処理が繰り返し実行される。   The alarm notification unit 33 determines that an alarm has occurred when the total value of the instantaneous exhaust air volume calculated by the calculation unit 32 exceeds the maximum exhaust air volume (YES in step S203), and the exhaust valve controller 2 through the alarm transmission unit 34. An alarm notification signal is transmitted to (step S204). In addition, the alarm notifying unit 33 has recovered from the alarm occurrence state to the normal state when the total value of the instantaneous exhaust air volume becomes equal to or less than the maximum exhaust air volume after the alarm notification to the exhaust valve controller 2 (YES in step S205). Determination is made, and a recovery notification signal is transmitted to each exhaust valve controller 2 through the alarm transmitter 34 (step S206). In this way, the processes of steps S200 to S206 are repeatedly executed.

各排気バルブコントローラ２の警報受信部２４は、ステップＳ１０４において監視装置３から警報通知信号を受信した場合、警報通知信号を警報出力部２５に渡す。警報通知信号を受信した警報出力部２５は、各排気バルブコントローラ２に接続されているヒュームフードモニター（不図示）を通じて、各ヒュームフード１を使用する作業者に警報が発生したことを通知する（ステップＳ１０５）。このときのヒュームフードモニターによる通知の例としては、例えばブザーや音声による通知やランプ点灯による通知などがある。   The alarm receiving unit 24 of each exhaust valve controller 2 passes the alarm notification signal to the alarm output unit 25 when receiving the alarm notification signal from the monitoring device 3 in step S104. The alarm output unit 25 that has received the alarm notification signal notifies the operator who uses each fume hood 1 that an alarm has occurred through a fume hood monitor (not shown) connected to each exhaust valve controller 2 ( Step S105). Examples of notification by the fume hood monitor at this time include notification by buzzer or voice, notification by lamp lighting, and the like.

また、各排気バルブコントローラ２の警報受信部２４は、ステップＳ１０４において監視装置３から復旧通知信号を受信した場合、復旧通知信号を警報出力部２５に渡す。復旧通知信号を受信した警報出力部２５は、各排気バルブコントローラ２に接続されているヒュームフードモニターを通じて、各ヒュームフード１を使用する作業者に正常状態に復旧したことを通知する（ステップＳ１０５）。このときのヒュームフードモニターによる通知の例としては、例えばブザーや音声による通知やランプ消灯による通知などがある。
各排気バルブコントローラ２と監視装置３とは、ヒュームフード管理システムの動作が停止するまで（ステップＳ１０６，Ｓ２０７においてＹＥＳ）、図３、図４に示した処理を行う。 Further, the alarm receiving unit 24 of each exhaust valve controller 2 passes the recovery notification signal to the alarm output unit 25 when receiving the recovery notification signal from the monitoring device 3 in step S104. The alarm output unit 25 that has received the recovery notification signal notifies the operator who uses each fume hood 1 that the normal state has been restored through the fume hood monitor connected to each exhaust valve controller 2 (step S105). . Examples of notification by the fume hood monitor at this time include, for example, notification by a buzzer or voice, notification by turning off the lamp, and the like.
Each exhaust valve controller 2 and the monitoring device 3 perform the processes shown in FIGS. 3 and 4 until the operation of the fume hood management system stops (YES in steps S106 and S207).

以上のように、本実施の形態では、各ヒュームフード１の瞬時排気風量の合計値を算出し、瞬時排気風量の合計値が予め想定される最大排気風量を超えたときに、警報発生を通知するようにしたので、各ヒュームフード１を使用する作業者に、危険が迫っていることを通知することができる。本実施の形態では、ヒュームフード１の複数台同時利用の安全圏内で作業可能な状態にある場合には、警報が発生しないので、作業者は安全でストレスのない環境で作業することができる。   As described above, in the present embodiment, the total value of the instantaneous exhaust air volume of each fume hood 1 is calculated, and an alarm is notified when the total value of the instantaneous exhaust air volume exceeds a presumed maximum exhaust air volume. Since it was made to do, it can notify the operator who uses each fume hood 1 that danger is imminent. In the present embodiment, when a work can be performed within a safe range where a plurality of fume hoods 1 are used simultaneously, an alarm is not generated, so that the worker can work in a safe and stress-free environment.

［第２の実施の形態］
次に、本発明の第２の実施の形態について説明する。本実施の形態においても、ヒュームフード管理システムの全体構成は第１の実施の形態と同様であるので、図１の符号を用いて説明する。 [Second Embodiment]
Next, a second embodiment of the present invention will be described. Also in the present embodiment, the overall configuration of the fume hood management system is the same as that of the first embodiment, and therefore, description will be made using the reference numerals in FIG.

図５は本実施の形態の排気バルブコントローラ２と監視装置３の構成を示すブロック図である。排気バルブコントローラ２は、データ収集部２０と、データ記憶部２１と、制御部２２と、データ送信部２３と、警報受信部２４と、警報出力部２５と、監視装置３から送られる負荷率のデータを受信するデータ受信部２６と、負荷率のデータを通知するデータ出力部２７とを有する。   FIG. 5 is a block diagram showing the configuration of the exhaust valve controller 2 and the monitoring device 3 of the present embodiment. The exhaust valve controller 2 includes a data collection unit 20, a data storage unit 21, a control unit 22, a data transmission unit 23, an alarm reception unit 24, an alarm output unit 25, and a load factor sent from the monitoring device 3. It has a data receiving unit 26 that receives data, and a data output unit 27 that notifies load factor data.

監視装置３は、データ受信部３０と、データ記憶部３１と、収集されたデータに基づいて各ヒュームフード１の瞬時排気風量の合計値を算出し、この瞬時排気風量の合計値と予め想定される最大排気風量とから負荷率を算出する演算部３２ａと、負荷率が所定の閾値を超えたときに警報通知信号を出力し、警報発生後に負荷率が閾値以下になったときに復旧通知信号を出力する警報通知部３３ａと、警報送信部３４と、負荷率のデータを各排気バルブコントローラ２へ送信するデータ送信部３５とを有する。   The monitoring device 3 calculates the total value of the instantaneous exhaust air volume of each fume hood 1 based on the data reception unit 30, the data storage unit 31, and the collected data, and is assumed in advance as the total value of the instantaneous exhaust air volume. A calculation unit 32a that calculates a load factor from the maximum exhaust air volume, and an alarm notification signal that is output when the load factor exceeds a predetermined threshold, and a recovery notification signal that is output when the load factor falls below the threshold after the alarm is generated. The alarm notification unit 33a that outputs the alarm, the alarm transmission unit 34, and the data transmission unit 35 that transmits the load factor data to each exhaust valve controller 2.

以下、本実施の形態のヒュームフード管理システムの動作について説明する。図６は排気バルブコントローラ２の動作を示すフローチャート、図７は監視装置３の動作を示すフローチャートである。   Hereinafter, the operation of the fume hood management system of the present embodiment will be described. FIG. 6 is a flowchart showing the operation of the exhaust valve controller 2, and FIG. 7 is a flowchart showing the operation of the monitoring device 3.

排気バルブコントローラ２のステップＳ１００〜Ｓ１０６の処理は、第１の実施の形態と同様である。ステップＳ１０７，Ｓ１０８の処理については後述する。
監視装置３のステップＳ２００，Ｓ２０１の処理は、第１の実施の形態と同様である。 The processing of steps S100 to S106 of the exhaust valve controller 2 is the same as in the first embodiment. Steps S107 and S108 will be described later.
The processes in steps S200 and S201 of the monitoring device 3 are the same as those in the first embodiment.

監視装置３の演算部３２ａは、各排気バルブコントローラ２から受信したデータに基づいて、各ヒュームフード１の瞬時排気風量の合計値を算出し、この瞬時排気風量の合計値を予め想定される排気風量の最大値である最大排気風量で割ることにより負荷率を算出する（図７ステップＳ２０８）。第１の実施の形態で説明したとおり、最大排気風量は、排気系統７によって排出可能な排気風量の限界値を若干下回る値に設定されている。   The calculation unit 32a of the monitoring device 3 calculates the total value of the instantaneous exhaust air volume of each fume hood 1 based on the data received from each exhaust valve controller 2, and the total value of this instantaneous exhaust air volume is assumed in advance. The load factor is calculated by dividing by the maximum exhaust air volume which is the maximum air volume (step S208 in FIG. 7). As described in the first embodiment, the maximum exhaust air volume is set to a value slightly below the limit value of the exhaust air volume that can be discharged by the exhaust system 7.

警報通知部３３ａは、演算部３２ａが算出した負荷率と所定の閾値とを比較する（ステップＳ２０９）。最大排気風量は、排気系統７によって排出可能な排気風量の限界値を若干下回る値に設定されており、負荷率が閾値を超えたとしても、作業者にとって直ぐに危険な状態にはならないように設定されている。   The alarm notification unit 33a compares the load factor calculated by the calculation unit 32a with a predetermined threshold value (step S209). The maximum exhaust air volume is set to a value that is slightly below the limit value of the exhaust air volume that can be discharged by the exhaust system 7, and it is set so that even if the load factor exceeds the threshold, it is not immediately dangerous for the operator. Has been.

警報通知部３３ａは、演算部３２ａが算出した負荷率が閾値を超える場合（ステップＳ２０９においてＹＥＳ）、警報が発生したと判定し、警報送信部３４を通じて各排気バルブコントローラ２へ警報通知信号を送信する（ステップＳ２１０）。また、警報通知部３３ａは、排気バルブコントローラ２への警報通知後に、負荷率が閾値以下になった場合（ステップＳ２１１においてＹＥＳ）、警報発生状態から正常状態に復旧したと判定し、警報送信部３４を通じて各排気バルブコントローラ２へ復旧通知信号を送信する（ステップＳ２１２）。   When the load factor calculated by the calculation unit 32a exceeds the threshold value (YES in step S209), the alarm notification unit 33a determines that an alarm has occurred and transmits an alarm notification signal to each exhaust valve controller 2 through the alarm transmission unit 34. (Step S210). Further, the alarm notification unit 33a determines that the alarm generation state is restored to the normal state when the load factor becomes equal to or lower than the threshold value after the alarm notification to the exhaust valve controller 2 (YES in step S211), and the alarm transmission unit A recovery notification signal is transmitted to each exhaust valve controller 2 through 34 (step S212).

監視装置３のデータ送信部３５は、演算部３２ａが算出した負荷率のデータを各排気バルブコントローラ２へ送信する（ステップＳ２１３）。こうして、ステップＳ２００，Ｓ２０１，Ｓ２０８〜Ｓ２１３の処理が繰り返し実行される。   The data transmission unit 35 of the monitoring device 3 transmits the load factor data calculated by the calculation unit 32a to each exhaust valve controller 2 (step S213). In this way, the processes of steps S200, S201, and S208 to S213 are repeatedly executed.

監視装置３から警報通知信号または復旧通知信号を受信したときの各排気バルブコントローラ２の動作は、第１の実施の形態で説明したとおりである（図６のステップＳ１０４，Ｓ１０５）。
また、各排気バルブコントローラ２のデータ受信部２６は、監視装置３から負荷率のデータを受信すると（ステップＳ１０７においてＹＥＳ）、このデータをデータ出力部２７に渡す。データ出力部２７は、各排気バルブコントローラ２に接続されているヒュームフードモニター（不図示）を通じて、各ヒュームフード１を使用する作業者に負荷率を通知する（ステップＳ１０８）。このときのヒュームフードモニターによる通知の例としては、例えば画面表示や音声による通知などがある。 The operation of each exhaust valve controller 2 when receiving an alarm notification signal or a recovery notification signal from the monitoring device 3 is as described in the first embodiment (steps S104 and S105 in FIG. 6).
Further, when the data receiving unit 26 of each exhaust valve controller 2 receives the load factor data from the monitoring device 3 (YES in step S107), the data receiving unit 26 passes this data to the data output unit 27. The data output unit 27 notifies the load factor to the worker who uses each fume hood 1 through a fume hood monitor (not shown) connected to each exhaust valve controller 2 (step S108). Examples of the notification by the fume hood monitor at this time include, for example, a screen display and a voice notification.

以上のように、本実施の形態では、各ヒュームフード１の瞬時排気風量の合計値を算出し、瞬時排気風量の合計値と予め想定される最大排気風量とから負荷率を算出し、負荷率が所定の閾値を超えたときに、警報発生を通知するようにしたので、各ヒュームフード１を使用する作業者に、危険が迫っていることを通知することができる。   As described above, in the present embodiment, the total value of the instantaneous exhaust air volume of each fume hood 1 is calculated, and the load factor is calculated from the total value of the instantaneous exhaust air volume and the maximum exhaust air volume assumed in advance. Since the alarm is notified when the value exceeds a predetermined threshold, it is possible to notify the worker using each fume hood 1 that the danger is imminent.

また、本実施の形態では、作業者に負荷率のデータを通知するようにしたので、作業者が事前にまたは作業中に設備の負荷状況を知ることができる。その結果、負荷率のデータを見た作業者がヒュームフードの使用を見送るといった自己抑制を期待できるので、ヒュームフードの使用者が次々と増えて設備の負荷が限界に近づくといった危険性を回避することができ、安全な環境を作業者に提供することができる。   In the present embodiment, since the load factor data is notified to the worker, the worker can know the load status of the facility in advance or during the work. As a result, it is possible to expect self-suppression that workers who look at the load factor data forego the use of the fume hood, thereby avoiding the danger that the number of fume hood users will increase one after another and the load on the equipment will approach the limit. It is possible to provide a safe environment to workers.

なお、第１、第２の実施の形態では、各排気バルブコントローラ２がヒュームフード１からデータを定期的に収集して監視装置３へ送信しているが、これに限るものではなく、ヒュームフード１の瞬時排気風量に変化が発生した場合に、この瞬時排気風量のデータを収集して監視装置３へ送信するようにしてもよい。   In the first and second embodiments, each exhaust valve controller 2 periodically collects data from the fume hood 1 and transmits it to the monitoring device 3, but the present invention is not limited to this. When a change occurs in the instantaneous exhaust air volume of 1, the instantaneous exhaust air volume data may be collected and transmitted to the monitoring device 3.

また、警報通知と復旧通知を繰り返すハンチングを防止するため、所定時間以上の間、瞬時排気風量の合計値が最大排気風量を超えているとき（第１の実施の形態の場合）、あるいは所定時間以上の間、負荷率が閾値を超えているときに（第２の実施の形態の場合）、警報発生と判断するようにしてもよい。   Further, in order to prevent hunting that repeats the alarm notification and the recovery notification, when the total value of the instantaneous exhaust airflow exceeds the maximum exhaust airflow for a predetermined time or more (in the case of the first embodiment), or for a predetermined time During the above, when the load factor exceeds the threshold value (in the case of the second embodiment), it may be determined that an alarm has occurred.

なお、第１、第２の実施の形態において排気バルブコントローラ２と監視装置３の各々は、それぞれＣＰＵ、メモリおよびインタフェースを備えたコンピュータとこれらのハードウェア資源を制御するプログラムによって実現することができる。排気バルブコントローラ２と監視装置３の各々のＣＰＵは、メモリに格納されたプログラムに従って第１、第２の実施の形態で説明した処理を実行する。   In the first and second embodiments, each of the exhaust valve controller 2 and the monitoring device 3 can be realized by a computer having a CPU, a memory and an interface, and a program for controlling these hardware resources. . Each CPU of the exhaust valve controller 2 and the monitoring device 3 executes the processing described in the first and second embodiments in accordance with a program stored in the memory.

本発明は、ヒュームフードを管理する技術に適用することができる。   The present invention can be applied to a technique for managing a fume hood.

本発明の第１の実施の形態に係るヒュームフード管理システムの構成を示すブロック図である。It is a block diagram which shows the structure of the fume hood management system which concerns on the 1st Embodiment of this invention. 本発明の第１の実施の形態に係るヒュームフード管理システムの排気バルブコントローラと監視装置の構成を示すブロック図である。It is a block diagram which shows the structure of the exhaust valve controller and monitoring apparatus of the fume hood management system which concerns on the 1st Embodiment of this invention. 本発明の第１の実施の形態に係るヒュームフード管理システムの排気バルブコントローラの動作を示すフローチャートである。It is a flowchart which shows operation | movement of the exhaust valve controller of the fume hood management system which concerns on the 1st Embodiment of this invention. 本発明の第１の実施の形態に係るヒュームフード管理システムの監視装置の動作を示すフローチャートである。It is a flowchart which shows operation | movement of the monitoring apparatus of the fume hood management system which concerns on the 1st Embodiment of this invention. 本発明の第２の実施の形態に係るヒュームフード管理システムの排気バルブコントローラと監視装置の構成を示すブロック図である。It is a block diagram which shows the structure of the exhaust valve controller and monitoring apparatus of a fume hood management system which concerns on the 2nd Embodiment of this invention. 本発明の第２の実施の形態に係るヒュームフード管理システムの排気バルブコントローラの動作を示すフローチャートである。It is a flowchart which shows operation | movement of the exhaust valve controller of the fume hood management system which concerns on the 2nd Embodiment of this invention. 本発明の第２の実施の形態に係るヒュームフード管理システムの監視装置の動作を示すフローチャートである。It is a flowchart which shows operation | movement of the monitoring apparatus of the fume hood management system which concerns on the 2nd Embodiment of this invention.

符号の説明Explanation of symbols

１…ヒュームフード、２…排気バルブコントローラ、３…監視装置、４…ネットワーク、５…サッシ、６…排気バルブ、７…排気系統、８…排気ファン、２０…データ収集部、２１…データ記憶部、２２…制御部、２３…データ送信部、２４…警報受信部、２５…警報出力部、２６…データ受信部、２７…データ出力部、３０…データ受信部、３１…データ記憶部、３２，３２ａ…演算部、３３，３３ａ…警報通知部、３４…警報送信部、３５…データ送信部。   DESCRIPTION OF SYMBOLS 1 ... Fume hood, 2 ... Exhaust valve controller, 3 ... Monitoring apparatus, 4 ... Network, 5 ... Sash, 6 ... Exhaust valve, 7 ... Exhaust system, 8 ... Exhaust fan, 20 ... Data collection part, 21 ... Data storage part , 22 ... control unit, 23 ... data transmission unit, 24 ... alarm reception unit, 25 ... alarm output unit, 26 ... data reception unit, 27 ... data output unit, 30 ... data reception unit, 31 ... data storage unit, 32, 32a ... calculation unit, 33, 33a ... alarm notification unit, 34 ... alarm transmission unit, 35 ... data transmission unit.

Claims (4)

開閉可能なサッシを備えた複数のヒュームフードから稼働状態を表すデータを収集する収集手段と、
この収集されたデータに基づいて各ヒュームフードの瞬時排気風量の合計値を算出する演算手段と、
前記瞬時排気風量の合計値が予め想定される最大排気風量を超えたときに、警報発生を通知する警報通知手段とを備え、
前記最大排気風量は、前記複数のヒュームフードが接続された排気系統によって排出可能な排気風量の限界値を下回る値に予め設定され、
前記警報通知手段は、前記警報発生後に、前記瞬時排気風量の合計値が前記最大排気風量以下になったときに、正常状態に復旧したことを通知することを特徴とするヒュームフード管理システム。 A collecting means for collecting data representing an operating state from a plurality of fume hoods having sashes that can be opened and closed;
Arithmetic means for calculating the total value of the instantaneous exhaust air volume of each fume hood based on the collected data;
Alarm notification means for notifying the occurrence of an alarm when the total value of the instantaneous exhaust air volume exceeds a presumed maximum exhaust air volume ;
The maximum exhaust air volume is preset to a value lower than a limit value of the exhaust air volume that can be discharged by the exhaust system to which the plurality of fume hoods are connected.
The alarm notification means notifies that the normal state has been restored when the total value of the instantaneous exhaust airflow becomes equal to or less than the maximum exhaust airflow after the alarm is generated . 開閉可能なサッシを備えた複数のヒュームフードから稼働状態を表すデータを収集する収集手段と、
この収集されたデータに基づいて各ヒュームフードの瞬時排気風量の合計値を算出し、この瞬時排気風量の合計値と予め想定される最大排気風量とから負荷率を算出する演算手段と、
前記負荷率が所定の閾値を超えたときに、警報発生を通知する警報通知手段と、
各ヒュームフードを使用する作業者に前記負荷率のデータを通知するデータ出力手段とを備え、
前記最大排気風量は、前記複数のヒュームフードが接続された排気系統によって排出可能な排気風量の限界値を下回る値に予め設定され、
前記警報通知手段は、前記警報発生後に、前記負荷率が前記閾値以下になったときに、正常状態に復旧したことを通知することを特徴とするヒュームフード管理システム。 A collecting means for collecting data representing an operating state from a plurality of fume hoods having sashes that can be opened and closed;
A calculating means for calculating a total value of the instantaneous exhaust air volume of each fume hood based on the collected data, and calculating a load factor from the total value of the instantaneous exhaust air volume and a presumed maximum exhaust air volume;
Alarm notification means for notifying the occurrence of an alarm when the load factor exceeds a predetermined threshold ;
Data output means for notifying workers using each fume hood of the load factor data;
The maximum exhaust air volume is preset to a value lower than a limit value of the exhaust air volume that can be discharged by the exhaust system to which the plurality of fume hoods are connected.
The said alarm notification means notifies that it recovered to a normal state, when the said load factor becomes below the said threshold value after the said alarm generation | occurrence | production . 開閉可能なサッシを備えた複数のヒュームフードから稼働状態を表すデータを収集する収集手順と、
この収集されたデータに基づいて各ヒュームフードの瞬時排気風量の合計値を算出する演算手順と、
前記瞬時排気風量の合計値が予め想定される最大排気風量を超えたときに、警報発生を通知する警報通知手順とを備え、
前記最大排気風量は、前記複数のヒュームフードが接続された排気系統によって排出可能な排気風量の限界値を下回る値に予め設定され、
前記警報通知手順は、前記警報発生後に、前記瞬時排気風量の合計値が前記最大排気風量以下になったときに、正常状態に復旧したことを通知する手順を含むことを特徴とするヒュームフード管理方法。 A collection procedure for collecting data representing the operating state from a plurality of fume hoods with sashes that can be opened and closed;
A calculation procedure for calculating the total value of the instantaneous exhaust air volume of each fume hood based on the collected data,
An alarm notification procedure for notifying the occurrence of an alarm when the total value of the instantaneous exhaust air volume exceeds a presumed maximum exhaust air volume ;
The maximum exhaust air volume is preset to a value lower than a limit value of the exhaust air volume that can be discharged by the exhaust system to which the plurality of fume hoods are connected.
The alarm notification procedure includes a procedure for notifying that the normal state has been restored when the total value of the instantaneous exhaust airflow is equal to or less than the maximum exhaust airflow after the alarm is generated. Method. 開閉可能なサッシを備えた複数のヒュームフードから稼働状態を表すデータを収集する収集手順と、
この収集されたデータに基づいて各ヒュームフードの瞬時排気風量の合計値を算出し、この瞬時排気風量の合計値と予め想定される最大排気風量とから負荷率を算出する演算手順と、
前記負荷率が所定の閾値を超えたときに、警報発生を通知する警報通知手順と、
各ヒュームフードを使用する作業者に前記負荷率のデータを通知するデータ出力手順とを備え、
前記最大排気風量は、前記複数のヒュームフードが接続された排気系統によって排出可能な排気風量の限界値を下回る値に予め設定され、
前記警報通知手順は、前記警報発生後に、前記負荷率が前記閾値以下になったときに、正常状態に復旧したことを通知する手順を含むことを特徴とするヒュームフード管理方法。 A collection procedure for collecting data representing the operating state from a plurality of fume hoods with sashes that can be opened and closed;
A calculation procedure for calculating a total value of the instantaneous exhaust air volume of each fume hood based on the collected data and calculating a load factor from the total value of the instantaneous exhaust air volume and a presumed maximum exhaust air volume;
An alarm notification procedure for notifying the occurrence of an alarm when the load factor exceeds a predetermined threshold ;
A data output procedure for notifying workers using each fume hood of the load factor data;
The maximum exhaust air volume is preset to a value lower than a limit value of the exhaust air volume that can be discharged by the exhaust system to which the plurality of fume hoods are connected.
The alarm notification procedure includes a procedure for notifying that a normal state has been restored when the load factor becomes equal to or less than the threshold value after the alarm is generated .
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108889752A (en) * 2018-04-28 2018-11-27 同济大学 A kind of double-exhaust port formula air exhausting device and workshop exhaust system

Families Citing this family (119)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11229472B2 (en) 2001-06-12 2022-01-25 Cilag Gmbh International Modular battery powered handheld surgical instrument with multiple magnetic position sensors
US8182501B2 (en) 2004-02-27 2012-05-22 Ethicon Endo-Surgery, Inc. Ultrasonic surgical shears and method for sealing a blood vessel using same
US7846155B2 (en) 2004-10-08 2010-12-07 Ethicon Endo-Surgery, Inc. Handle assembly having hand activation for use with an ultrasonic surgical instrument
US20070191713A1 (en) 2005-10-14 2007-08-16 Eichmann Stephen E Ultrasonic device for cutting and coagulating
US7621930B2 (en) 2006-01-20 2009-11-24 Ethicon Endo-Surgery, Inc. Ultrasound medical instrument having a medical ultrasonic blade
US8057498B2 (en) 2007-11-30 2011-11-15 Ethicon Endo-Surgery, Inc. Ultrasonic surgical instrument blades
US8911460B2 (en) 2007-03-22 2014-12-16 Ethicon Endo-Surgery, Inc. Ultrasonic surgical instruments
US8142461B2 (en) 2007-03-22 2012-03-27 Ethicon Endo-Surgery, Inc. Surgical instruments
US8808319B2 (en) 2007-07-27 2014-08-19 Ethicon Endo-Surgery, Inc. Surgical instruments
US8882791B2 (en) 2007-07-27 2014-11-11 Ethicon Endo-Surgery, Inc. Ultrasonic surgical instruments
US8523889B2 (en) 2007-07-27 2013-09-03 Ethicon Endo-Surgery, Inc. Ultrasonic end effectors with increased active length
US8430898B2 (en) 2007-07-31 2013-04-30 Ethicon Endo-Surgery, Inc. Ultrasonic surgical instruments
US8512365B2 (en) 2007-07-31 2013-08-20 Ethicon Endo-Surgery, Inc. Surgical instruments
US9044261B2 (en) 2007-07-31 2015-06-02 Ethicon Endo-Surgery, Inc. Temperature controlled ultrasonic surgical instruments
JP2010540186A (en) 2007-10-05 2010-12-24 エシコン・エンド−サージェリィ・インコーポレイテッド Ergonomic surgical instrument
US10010339B2 (en) 2007-11-30 2018-07-03 Ethicon Llc Ultrasonic surgical blades
US9089360B2 (en) 2008-08-06 2015-07-28 Ethicon Endo-Surgery, Inc. Devices and techniques for cutting and coagulating tissue
US9700339B2 (en) 2009-05-20 2017-07-11 Ethicon Endo-Surgery, Inc. Coupling arrangements and methods for attaching tools to ultrasonic surgical instruments
US8663220B2 (en) 2009-07-15 2014-03-04 Ethicon Endo-Surgery, Inc. Ultrasonic surgical instruments
US9060776B2 (en) 2009-10-09 2015-06-23 Ethicon Endo-Surgery, Inc. Surgical generator for ultrasonic and electrosurgical devices
US10441345B2 (en) 2009-10-09 2019-10-15 Ethicon Llc Surgical generator for ultrasonic and electrosurgical devices
USRE47996E1 (en) 2009-10-09 2020-05-19 Ethicon Llc Surgical generator for ultrasonic and electrosurgical devices
US11090104B2 (en) 2009-10-09 2021-08-17 Cilag Gmbh International Surgical generator for ultrasonic and electrosurgical devices
US8951272B2 (en) 2010-02-11 2015-02-10 Ethicon Endo-Surgery, Inc. Seal arrangements for ultrasonically powered surgical instruments
US8486096B2 (en) 2010-02-11 2013-07-16 Ethicon Endo-Surgery, Inc. Dual purpose surgical instrument for cutting and coagulating tissue
US8961547B2 (en) 2010-02-11 2015-02-24 Ethicon Endo-Surgery, Inc. Ultrasonic surgical instruments with moving cutting implement
US8469981B2 (en) 2010-02-11 2013-06-25 Ethicon Endo-Surgery, Inc. Rotatable cutting implement arrangements for ultrasonic surgical instruments
US8795327B2 (en) 2010-07-22 2014-08-05 Ethicon Endo-Surgery, Inc. Electrosurgical instrument with separate closure and cutting members
US9192431B2 (en) 2010-07-23 2015-11-24 Ethicon Endo-Surgery, Inc. Electrosurgical cutting and sealing instrument
US9259265B2 (en) 2011-07-22 2016-02-16 Ethicon Endo-Surgery, Llc Surgical instruments for tensioning tissue
EP2811932B1 (en) 2012-02-10 2019-06-26 Ethicon LLC Robotically controlled surgical instrument
US9439668B2 (en) 2012-04-09 2016-09-13 Ethicon Endo-Surgery, Llc Switch arrangements for ultrasonic surgical instruments
US20140005705A1 (en) 2012-06-29 2014-01-02 Ethicon Endo-Surgery, Inc. Surgical instruments with articulating shafts
US9326788B2 (en) 2012-06-29 2016-05-03 Ethicon Endo-Surgery, Llc Lockout mechanism for use with robotic electrosurgical device
US9198714B2 (en) 2012-06-29 2015-12-01 Ethicon Endo-Surgery, Inc. Haptic feedback devices for surgical robot
US9226767B2 (en) 2012-06-29 2016-01-05 Ethicon Endo-Surgery, Inc. Closed feedback control for electrosurgical device
US9351754B2 (en) 2012-06-29 2016-05-31 Ethicon Endo-Surgery, Llc Ultrasonic surgical instruments with distally positioned jaw assemblies
US20140005702A1 (en) 2012-06-29 2014-01-02 Ethicon Endo-Surgery, Inc. Ultrasonic surgical instruments with distally positioned transducers
US9393037B2 (en) 2012-06-29 2016-07-19 Ethicon Endo-Surgery, Llc Surgical instruments with articulating shafts
US9820768B2 (en) 2012-06-29 2017-11-21 Ethicon Llc Ultrasonic surgical instruments with control mechanisms
US9408622B2 (en) 2012-06-29 2016-08-09 Ethicon Endo-Surgery, Llc Surgical instruments with articulating shafts
IN2015DN02432A (en) 2012-09-28 2015-09-04 Ethicon Endo Surgery Inc
US9095367B2 (en) 2012-10-22 2015-08-04 Ethicon Endo-Surgery, Inc. Flexible harmonic waveguides/blades for surgical instruments
US20140135804A1 (en) 2012-11-15 2014-05-15 Ethicon Endo-Surgery, Inc. Ultrasonic and electrosurgical devices
US10226273B2 (en) 2013-03-14 2019-03-12 Ethicon Llc Mechanical fasteners for use with surgical energy devices
US9241728B2 (en) 2013-03-15 2016-01-26 Ethicon Endo-Surgery, Inc. Surgical instrument with multiple clamping mechanisms
US9814514B2 (en) 2013-09-13 2017-11-14 Ethicon Llc Electrosurgical (RF) medical instruments for cutting and coagulating tissue
US9265926B2 (en) 2013-11-08 2016-02-23 Ethicon Endo-Surgery, Llc Electrosurgical devices
GB2521228A (en) 2013-12-16 2015-06-17 Ethicon Endo Surgery Inc Medical device
GB2521229A (en) 2013-12-16 2015-06-17 Ethicon Endo Surgery Inc Medical device
US9795436B2 (en) 2014-01-07 2017-10-24 Ethicon Llc Harvesting energy from a surgical generator
US9554854B2 (en) 2014-03-18 2017-01-31 Ethicon Endo-Surgery, Llc Detecting short circuits in electrosurgical medical devices
GB2538885B (en) * 2014-03-24 2020-02-19 Mitsubishi Electric Corp Air conditioning system and transmission relaying apparatus thereof
US10463421B2 (en) 2014-03-27 2019-11-05 Ethicon Llc Two stage trigger, clamp and cut bipolar vessel sealer
US10092310B2 (en) 2014-03-27 2018-10-09 Ethicon Llc Electrosurgical devices
US9737355B2 (en) 2014-03-31 2017-08-22 Ethicon Llc Controlling impedance rise in electrosurgical medical devices
US9913680B2 (en) 2014-04-15 2018-03-13 Ethicon Llc Software algorithms for electrosurgical instruments
US10285724B2 (en) 2014-07-31 2019-05-14 Ethicon Llc Actuation mechanisms and load adjustment assemblies for surgical instruments
US10639092B2 (en) 2014-12-08 2020-05-05 Ethicon Llc Electrode configurations for surgical instruments
US10245095B2 (en) 2015-02-06 2019-04-02 Ethicon Llc Electrosurgical instrument with rotation and articulation mechanisms
US10342602B2 (en) 2015-03-17 2019-07-09 Ethicon Llc Managing tissue treatment
US10321950B2 (en) 2015-03-17 2019-06-18 Ethicon Llc Managing tissue treatment
US10595929B2 (en) 2015-03-24 2020-03-24 Ethicon Llc Surgical instruments with firing system overload protection mechanisms
US10034684B2 (en) 2015-06-15 2018-07-31 Ethicon Llc Apparatus and method for dissecting and coagulating tissue
US11020140B2 (en) 2015-06-17 2021-06-01 Cilag Gmbh International Ultrasonic surgical blade for use with ultrasonic surgical instruments
US11051873B2 (en) 2015-06-30 2021-07-06 Cilag Gmbh International Surgical system with user adaptable techniques employing multiple energy modalities based on tissue parameters
US10034704B2 (en) 2015-06-30 2018-07-31 Ethicon Llc Surgical instrument with user adaptable algorithms
US11129669B2 (en) 2015-06-30 2021-09-28 Cilag Gmbh International Surgical system with user adaptable techniques based on tissue type
US10898256B2 (en) 2015-06-30 2021-01-26 Ethicon Llc Surgical system with user adaptable techniques based on tissue impedance
US10357303B2 (en) 2015-06-30 2019-07-23 Ethicon Llc Translatable outer tube for sealing using shielded lap chole dissector
US11141213B2 (en) 2015-06-30 2021-10-12 Cilag Gmbh International Surgical instrument with user adaptable techniques
US10154852B2 (en) 2015-07-01 2018-12-18 Ethicon Llc Ultrasonic surgical blade with improved cutting and coagulation features
US10751108B2 (en) 2015-09-30 2020-08-25 Ethicon Llc Protection techniques for generator for digitally generating electrosurgical and ultrasonic electrical signal waveforms
US10595930B2 (en) 2015-10-16 2020-03-24 Ethicon Llc Electrode wiping surgical device
US10179022B2 (en) 2015-12-30 2019-01-15 Ethicon Llc Jaw position impedance limiter for electrosurgical instrument
US10575892B2 (en) 2015-12-31 2020-03-03 Ethicon Llc Adapter for electrical surgical instruments
US10537351B2 (en) 2016-01-15 2020-01-21 Ethicon Llc Modular battery powered handheld surgical instrument with variable motor control limits
US11229471B2 (en) 2016-01-15 2022-01-25 Cilag Gmbh International Modular battery powered handheld surgical instrument with selective application of energy based on tissue characterization
US11129670B2 (en) 2016-01-15 2021-09-28 Cilag Gmbh International Modular battery powered handheld surgical instrument with selective application of energy based on button displacement, intensity, or local tissue characterization
US10716615B2 (en) 2016-01-15 2020-07-21 Ethicon Llc Modular battery powered handheld surgical instrument with curved end effectors having asymmetric engagement between jaw and blade
US10555769B2 (en) 2016-02-22 2020-02-11 Ethicon Llc Flexible circuits for electrosurgical instrument
US10485607B2 (en) 2016-04-29 2019-11-26 Ethicon Llc Jaw structure with distal closure for electrosurgical instruments
US10646269B2 (en) 2016-04-29 2020-05-12 Ethicon Llc Non-linear jaw gap for electrosurgical instruments
US10702329B2 (en) 2016-04-29 2020-07-07 Ethicon Llc Jaw structure with distal post for electrosurgical instruments
US10456193B2 (en) 2016-05-03 2019-10-29 Ethicon Llc Medical device with a bilateral jaw configuration for nerve stimulation
US10245064B2 (en) 2016-07-12 2019-04-02 Ethicon Llc Ultrasonic surgical instrument with piezoelectric central lumen transducer
US10893883B2 (en) 2016-07-13 2021-01-19 Ethicon Llc Ultrasonic assembly for use with ultrasonic surgical instruments
US10842522B2 (en) 2016-07-15 2020-11-24 Ethicon Llc Ultrasonic surgical instruments having offset blades
US10376305B2 (en) 2016-08-05 2019-08-13 Ethicon Llc Methods and systems for advanced harmonic energy
US10285723B2 (en) 2016-08-09 2019-05-14 Ethicon Llc Ultrasonic surgical blade with improved heel portion
USD847990S1 (en) 2016-08-16 2019-05-07 Ethicon Llc Surgical instrument
US10779847B2 (en) 2016-08-25 2020-09-22 Ethicon Llc Ultrasonic transducer to waveguide joining
US10952759B2 (en) 2016-08-25 2021-03-23 Ethicon Llc Tissue loading of a surgical instrument
US10603064B2 (en) 2016-11-28 2020-03-31 Ethicon Llc Ultrasonic transducer
US11266430B2 (en) 2016-11-29 2022-03-08 Cilag Gmbh International End effector control and calibration
US10820920B2 (en) 2017-07-05 2020-11-03 Ethicon Llc Reusable ultrasonic medical devices and methods of their use
US11452525B2 (en) 2019-12-30 2022-09-27 Cilag Gmbh International Surgical instrument comprising an adjustment system
US11974801B2 (en) 2019-12-30 2024-05-07 Cilag Gmbh International Electrosurgical instrument with flexible wiring assemblies
US12023086B2 (en) 2019-12-30 2024-07-02 Cilag Gmbh International Electrosurgical instrument for delivering blended energy modalities to tissue
US11911063B2 (en) 2019-12-30 2024-02-27 Cilag Gmbh International Techniques for detecting ultrasonic blade to electrode contact and reducing power to ultrasonic blade
US11944366B2 (en) 2019-12-30 2024-04-02 Cilag Gmbh International Asymmetric segmented ultrasonic support pad for cooperative engagement with a movable RF electrode
US11937863B2 (en) 2019-12-30 2024-03-26 Cilag Gmbh International Deflectable electrode with variable compression bias along the length of the deflectable electrode
US11950797B2 (en) 2019-12-30 2024-04-09 Cilag Gmbh International Deflectable electrode with higher distal bias relative to proximal bias
US11812957B2 (en) 2019-12-30 2023-11-14 Cilag Gmbh International Surgical instrument comprising a signal interference resolution system
US11986201B2 (en) 2019-12-30 2024-05-21 Cilag Gmbh International Method for operating a surgical instrument
US11660089B2 (en) 2019-12-30 2023-05-30 Cilag Gmbh International Surgical instrument comprising a sensing system
US12053224B2 (en) 2019-12-30 2024-08-06 Cilag Gmbh International Variation in electrode parameters and deflectable electrode to modify energy density and tissue interaction
US12082808B2 (en) 2019-12-30 2024-09-10 Cilag Gmbh International Surgical instrument comprising a control system responsive to software configurations
US12114912B2 (en) 2019-12-30 2024-10-15 Cilag Gmbh International Non-biased deflectable electrode to minimize contact between ultrasonic blade and electrode
US12076006B2 (en) 2019-12-30 2024-09-03 Cilag Gmbh International Surgical instrument comprising an orientation detection system
US11696776B2 (en) 2019-12-30 2023-07-11 Cilag Gmbh International Articulatable surgical instrument
US11786294B2 (en) 2019-12-30 2023-10-17 Cilag Gmbh International Control program for modular combination energy device
US11937866B2 (en) 2019-12-30 2024-03-26 Cilag Gmbh International Method for an electrosurgical procedure
US20210196361A1 (en) 2019-12-30 2021-07-01 Ethicon Llc Electrosurgical instrument with monopolar and bipolar energy capabilities
US11779387B2 (en) 2019-12-30 2023-10-10 Cilag Gmbh International Clamp arm jaw to minimize tissue sticking and improve tissue control
US12064109B2 (en) 2019-12-30 2024-08-20 Cilag Gmbh International Surgical instrument comprising a feedback control circuit
US11684412B2 (en) 2019-12-30 2023-06-27 Cilag Gmbh International Surgical instrument with rotatable and articulatable surgical end effector
US11786291B2 (en) 2019-12-30 2023-10-17 Cilag Gmbh International Deflectable support of RF energy electrode with respect to opposing ultrasonic blade
US11779329B2 (en) 2019-12-30 2023-10-10 Cilag Gmbh International Surgical instrument comprising a flex circuit including a sensor system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61228502A (en) * 1985-04-03 1986-10-11 Toshiba Corp Method for controlling number of working blowers
JPH02254252A (en) * 1989-03-27 1990-10-15 Nippondenso Co Ltd Air conditioning device
JPH0367947A (en) * 1989-08-07 1991-03-22 Mitsubishi Electric Corp Air capacity controller of air conditioner
JPH07260222A (en) * 1994-03-25 1995-10-13 Kajima Corp Combined air-conditioning and ventilating system for laboratory and fume hood
JP2898944B2 (en) * 1997-04-07 1999-06-02 株式会社大氣社 Air-conditioning system for controlling space pressure
JP3745715B2 (en) * 2002-08-02 2006-02-15 株式会社山武 Fume food management system
JP4618099B2 (en) * 2005-11-04 2011-01-26 パナソニック株式会社 Ventilation equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108889752A (en) * 2018-04-28 2018-11-27 同济大学 A kind of double-exhaust port formula air exhausting device and workshop exhaust system
CN108889752B (en) * 2018-04-28 2022-02-08 同济大学 Double exhaust port formula exhaust device and workshop exhaust system

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