JP5221867B2 - Negative pressure environment maintenance system in the management area - Google Patents

Negative pressure environment maintenance system in the management area

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JP5221867B2
JP5221867B2 JP2006302664A JP2006302664A JP5221867B2 JP 5221867 B2 JP5221867 B2 JP 5221867B2 JP 2006302664 A JP2006302664 A JP 2006302664A JP 2006302664 A JP2006302664 A JP 2006302664A JP 5221867 B2 JP5221867 B2 JP 5221867B2
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negative pressure
management area
management
dust
differential pressure
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JP2008119555A (en
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雅俊 半田
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Toda Corp
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Description

本発明は、例えば、限られた空間内のダイオキシン類を外部に漏出させることなく排除するための、管理区域の負圧環境維持システムに関するものである。   The present invention relates to a negative pressure environment maintenance system in a management area, for example, for eliminating dioxins in a limited space without leaking outside.

従来、ダイオキシン類を有する清掃工場の解体、又は、アスベストの撤去に伴う解体の作業において、対象となる場所や部屋を管理区域として区画し、当該管理区域を負圧にして、外部に前記ダイオキシンやアスベストが漏れ出さないようにして、撤去作業を行っている(特許文献1参照)。
特開2004−57998号公報
Conventionally, in the dismantling work of a cleaning plant that has dioxins, or the dismantling work that accompanies the removal of asbestos, the target area or room is divided as a management area, the management area is made negative pressure, and the dioxin or Removal work is performed so that asbestos does not leak out (see Patent Document 1).
JP 2004-57998 A

しかし、従来の上記撤去作業においては、ビニールシート等のカバー部材で前記区画を囲み、ダイオキシン類等で汚染された壁面などを粉砕または剥離して、負圧集塵機により回収処理しているが、前記ビニールシートが破れたり前記負圧集塵機が故障したりした場合に、迅速な対応が不可能であって区画内の負圧が維持できず、前記ダイオキシンやアスベスト等の有害物質が外部に漏れてしまうというおそれがある。これらの有害物質の撤去作業において、区画内の負圧を維持し、負圧空気流の流量の把握などの情報を集中させそれを管理し、トータル的に安全性を確保するシステムが求められている。本発明に係る管理区域の負圧環境維持システムは、このような課題を解決するために提案されたものである。   However, in the conventional removal work described above, the compartment is surrounded by a cover member such as a vinyl sheet, and a wall contaminated with dioxins or the like is crushed or peeled off and collected by a negative pressure dust collector. When a vinyl sheet is torn or the negative pressure dust collector breaks down, it is impossible to respond quickly and the negative pressure in the compartment cannot be maintained, and harmful substances such as dioxins and asbestos leak to the outside. There is a risk. In the removal work of these harmful substances, a system that maintains the negative pressure in the compartment, concentrates information such as grasping the flow rate of negative pressure air flow, manages it, and ensures total safety is required. Yes. The negative pressure environment maintenance system for a management area according to the present invention has been proposed in order to solve such problems.

本発明に係る管理区域の負圧環境維持システムの上記課題を解決して目的を達成するための要旨は、管理対象の管理区域を密封してカバーするカバー部材と、外部と前記管理区域とに接続されてこの両者の空気の差圧を測定する差圧計と、前記カバー部材の内部に配設され粉塵量を計測する粉塵量計測器と、前記カバー部材の内部に配設され外部に空気を排出する負圧集塵機と、前記負圧集塵機によってカバー部材の内部から外部に排出される風量を計測する風量計測器と、前記差圧計と粉塵量計測器と負圧集塵機と風量計測器とが電気的に接続される制御装置と、該制御装置に電気的に接続される警報装置と、制御装置と警報装置との間に介在されるネットワークとからなり、
前記差圧計と前記粉塵量計測器と前記風量計測器とにおける各々の管理値レベルを前記制御装置において比較して、該3カ所の計測器の計測値による管理値レベルのうちの最大値に対応した警報を前記警報装置から発するようにしたことである。
The gist for achieving the object by solving the above-described problem of the negative pressure environment maintenance system for the management area according to the present invention is to cover the management area to be managed and cover the outside, and the management area. A differential pressure gauge that is connected to measure the differential pressure of the air of the two, a dust amount measuring instrument that is disposed inside the cover member and measures the amount of dust, and is disposed inside the cover member and supplies air to the outside. The negative pressure dust collector to be discharged, the air volume measuring device for measuring the air volume discharged from the inside of the cover member by the negative pressure dust collector, the differential pressure gauge, the dust volume measuring instrument, the negative pressure dust collector and the air volume measuring instrument are electrically connected. Connected to the control device, an alarm device electrically connected to the control device, and a network interposed between the control device and the alarm device,
Each control value level in the differential pressure gauge, the dust amount measuring device and the air flow measuring device is compared in the control device, and corresponds to the maximum value among the management value levels based on the measurement values of the three measuring devices. This alarm is issued from the alarm device.

前記管理値レベルは、現状維持の場合と現場事務所の作業者に警報を出す場合と作業者の作業を中止させる場合との3レベルに分かれていて、順に管理値レベルが高くなっていることを含むものである。 The management value level is divided into three levels, that is, the case of maintaining the current situation, the case where an alarm is given to the worker in the field office, and the case where the worker's work is stopped, and the management value level becomes higher in order. Is included.

本発明の管理区域の負圧環境維持システムによれば、管理区域内の気圧を設定された範囲の負圧に維持するようにコントロールすることが可能となり、仮に、所定の差圧に成らない場合には、直ちに警報が発せられて、外部への漏れ出しを防ぎ周囲の環境を守ると共に、作業員の安全性が確保されるものである。   According to the management area negative pressure environment maintenance system of the present invention, it is possible to control the atmospheric pressure in the management area so as to maintain the negative pressure within a set range, and if the predetermined differential pressure is not achieved. In this case, an alarm is immediately issued to prevent leakage to the outside, protect the surrounding environment, and ensure the safety of workers.

制御装置により、複数の負圧集塵機を必要なものだけ効率的に運転するので、電気代の節約となる。また、ネットワークにより制御装置に送られるデータが、現場から離れた施工管理会社や施主にも送られて、リアルタイムにデータを共有することができる。更に、制御装置のプログラムにより、自動的にデータの帳票出力がなされて、前記管理区域の負圧維持管理が容易になる。   Since the controller efficiently operates only a plurality of negative pressure dust collectors as necessary, the electricity cost can be saved. In addition, data sent to the control device via the network can be sent to a construction management company or a client who is away from the site, and data can be shared in real time. Further, a data form is automatically output by the program of the control device, and the negative pressure maintenance management of the management area is facilitated.

本発明に係る管理区域の負圧環境維持システム1は、図1に示すように、管理対象の管理区域2を密封してカバーする、例えば、塩化ビニールシート等のカバー部材3と、外部4と前記管理区域2とに接続されてこの両者2,4の空気の差圧を測定する差圧計5と、前記カバー部材の内部に配設され粉塵量を計測する粉塵量計測器6と、前記カバー部材の内部に配設され外部に空気を排出する負圧集塵機7と、前記負圧集塵機7によってカバー部材3の内部から外部に排出される風量を計測する風量計測器8と、前記差圧計5と粉塵量計測器6と負圧集塵機7と風量計測器8とが電気的に接続される制御装置9と、該制御装置9に電気的に接続される警報装置10とからなる。   As shown in FIG. 1, the negative pressure environment maintenance system 1 for a management area according to the present invention seals and covers the management area 2 to be managed, for example, a cover member 3 such as a vinyl chloride sheet, A differential pressure gauge 5 that is connected to the management area 2 and measures the differential pressure between the air 2 and 4, a dust amount measuring device 6 that is disposed inside the cover member and measures the amount of dust, and the cover A negative pressure dust collector 7 disposed inside the member and exhausting air to the outside, an air volume measuring device 8 for measuring the air volume discharged from the inside of the cover member 3 by the negative pressure dust collector 7, and the differential pressure gauge 5 The control device 9 is electrically connected to the dust amount measuring device 6, the negative pressure dust collector 7, and the air flow measuring device 8, and the alarm device 10 is electrically connected to the control device 9.

前記差圧計5は、複数のデジタル差圧計でもって、管理区域2と外部4との差圧を、例えば、1分おきに連続計測する。モニター12等に表示する場合には、直近10分の平均値とする。管理値としては、例えば、作業標準値が20pa、一次管理値が8pa、2次管理値が5paとする。この差圧計5により、所定の差圧を下回った場合には、前記制御装置9を介して警報装置10により、警報が発せられる。   The differential pressure gauge 5 is a plurality of digital differential pressure gauges, and continuously measures the differential pressure between the management area 2 and the outside 4 every other minute, for example. When displaying on the monitor 12 or the like, the average value for the last 10 minutes is used. As the management value, for example, the work standard value is 20 pa, the primary management value is 8 pa, and the secondary management value is 5 pa. When the differential pressure gauge 5 falls below a predetermined differential pressure, an alarm is issued by the alarm device 10 via the control device 9.

前記粉塵量計測器6は、前記管理区域2内に、例えば、1個〜5個、実施例では3個程度を配置する。管理区域2内の粉塵量(mg/リットル)をデジタルで計測して、ダイオキシン類濃度(pg−TEQ/m)に変換する。また、負圧集塵機7は、複数の集塵機を用意して、前記制御装置9で所要の差圧が得られるようにコントロールする。各負圧集塵機7の稼働状況も記録するようにする。この負圧集塵機7の自動若しくは手動のモード切替を、前記制御装置9を介して行う。 For example, 1 to 5 dust quantity measuring instruments 6 are arranged in the management area 2 in the embodiment. The amount of dust (mg / liter) in the management area 2 is digitally measured and converted to a dioxin concentration (pg-TEQ / m 3 ). The negative pressure dust collector 7 prepares a plurality of dust collectors and controls the controller 9 so that a required differential pressure is obtained. The operating status of each negative pressure dust collector 7 is also recorded. Automatic or manual mode switching of the negative pressure dust collector 7 is performed via the control device 9.

前記制御装置9と警報装置10との間には、例えば、インターネット若しくは社内LAN等のネットワーク11が介在されている場合がある。これにより、作業現場で前記負圧集塵機7等を制御できるばかりでなく、遠隔地にある事務所等から制御装置9を介して前記負圧集塵機7等の遠隔制御が可能となる。   For example, a network 11 such as the Internet or an in-house LAN may be interposed between the control device 9 and the alarm device 10. As a result, the negative pressure dust collector 7 and the like can be controlled at the work site, and the negative pressure dust collector 7 and the like can be remotely controlled from a remote office or the like via the control device 9.

前記制御装置9には、差圧計5、粉塵量計測器6、負圧集塵機7、風量計測器8の各々から送信されたデジタルデータをリアルタイムに集計し、前記デジタルデータの全部若しくは一部をモニター12を介してグラフ化すること、及び、前記デジタルデータの集計結果の全部若しくは一部を印刷機(図示せず)を介して帳票出力することを設定したプログラムが組み込まれている。これにより、現場でも遠隔地でも、前記差圧計5、粉塵量計測器6等のデータをリアルタイムで把握することができる。   The control device 9 aggregates the digital data transmitted from each of the differential pressure gauge 5, the dust amount measuring device 6, the negative pressure dust collector 7, and the air flow measuring device 8 in real time, and monitors all or part of the digital data. A program is set in which graphing is performed via 12 and that all or part of the total result of the digital data is output via a printing machine (not shown). Thereby, the data of the differential pressure gauge 5, the dust amount measuring device 6 and the like can be grasped in real time both at the site and at a remote location.

前記警報装置10は、例えば、パトライト、警報音声、携帯電話へのメール等の警報を発するものである。   The alarm device 10 emits an alarm such as a patrol light, an alarm sound, and an e-mail to a mobile phone.

このようにしてなる負圧環境維持システム1によれば、図1に示すように、管理区域2を塩化ビニールシート等のカバー部材3で囲った後、制御装置9に、差圧計5,粉塵量計測器6,負圧集塵機7及び風量計測器8を各々電気的に接続する。更に、前記制御装置9をネットワーク11に接続する。次に、前記負圧集塵機7を駆動させて、作業標準時に差圧が20paとなるように、また、夜間時には10paになるように制御する。   According to the negative pressure environment maintenance system 1 thus configured, as shown in FIG. 1, after the management area 2 is surrounded by a cover member 3 such as a vinyl chloride sheet, the control device 9 is connected to the differential pressure gauge 5, the amount of dust. The measuring device 6, the negative pressure dust collector 7 and the air flow measuring device 8 are electrically connected to each other. Further, the control device 9 is connected to the network 11. Next, the negative pressure dust collector 7 is driven to control the differential pressure to be 20 pa at the standard time of operation and to 10 pa at night.

前記差圧値の管理の一例としては、図2に示すように、作業用フローに基づいて進める。即ち、1次管理値を8pa、2次管理値を5paとする。そして、管理値レベルNがN=1となった場合で、1次管理値<差圧値<2次管理値 (負圧(−)なので、数値の大きい方が小さい)である場合に、管理区域2内と、現場事務所に警報装置10で警報を出す。負圧集塵機7を1次管理値確保のために、制御装置9を介して所要の数量を稼働させる。その後、例えば、30分後に、標準稼働数量に戻す。   As an example of the management of the differential pressure value, as shown in FIG. 2, the process proceeds based on a work flow. That is, the primary management value is 8 pa, and the secondary management value is 5 pa. When the management value level N is N = 1, the management value is the primary management value <the differential pressure value <the secondary management value (since negative pressure (−), the larger value is smaller). The alarm device 10 issues an alarm in the area 2 and the field office. The negative pressure dust collector 7 is operated in a required quantity via the control device 9 in order to secure the primary management value. Thereafter, for example, after 30 minutes, the standard operating quantity is restored.

更に、N=2の場合で、2次管理値<差圧値<0となった場合には、管理区域2内にパトライトで警報し、現場事務所及び担当者の携帯電話にメール等で警報を出す。管理区域2では、作業者の作業を中止する。負圧集塵機7を1次管理値確保のために、制御装置9を介して所要の数量を稼働させる。その後、例えば、30分後に、標準稼働数量に戻す。   Furthermore, if N = 2 and the secondary control value <differential pressure value <0, a warning is issued in the control area 2 with a patrol, and an alarm is sent to the field office and the mobile phone of the person in charge via e-mail etc. Put out. In the management area 2, the operator's work is stopped. The negative pressure dust collector 7 is operated in a required quantity via the control device 9 in order to secure the primary management value. Thereafter, for example, after 30 minutes, the standard operating quantity is restored.

なお、前記差圧値が、前記1次管理値や2次管理値を頻繁に超えてしまう場合には、担当者が前記負圧集塵機7の標準稼働数量の見直しをする。この後、開口、搬出口等の状況を確認し、敷地境界の粉塵量(SPM値)を確認して、異常がなければ作業を再開する。   If the differential pressure value frequently exceeds the primary management value or the secondary management value, the person in charge reviews the standard operating quantity of the negative pressure dust collector 7. After this, the status of the opening, the exit, etc. is confirmed, the dust amount (SPM value) at the site boundary is confirmed, and if there is no abnormality, the operation is resumed.

このようにして、管理区域2内の負圧を制御装置9により確実に維持して、ダイオキシン等が外部に漏れ出すことがないようにすることができる。また、差圧値や粉塵量、風量をリアルタイムで把握することができて、トータル的な管理が容易となる。   In this way, the negative pressure in the management area 2 can be reliably maintained by the control device 9 so that dioxins and the like do not leak to the outside. Further, the differential pressure value, the dust amount, and the air volume can be grasped in real time, and total management becomes easy.

本発明に係る管理区域の負圧環境維持システム1の概略全体構成図である。1 is a schematic overall configuration diagram of a negative pressure environment maintenance system 1 in a management area according to the present invention. 同本発明の管理区域の負圧環境維持システム1の作業中のフローを示す説明図である。It is explanatory drawing which shows the flow in operation | work of the negative pressure environment maintenance system 1 of the management area of the same invention. 従来例に係る負圧維持システム15の概略全体構成図である。It is a schematic whole block diagram of the negative pressure maintenance system 15 which concerns on a prior art example.

符号の説明Explanation of symbols

1 管理区域の負圧環境維持システム、
2 管理区域、
3 カバー部材、
4 外部、
5 差圧計、
6 粉塵量計測器、
7 負圧集塵機、
8 風量計測器、
9 制御装置、
10 警報装置、
11 ネットワーク、
12 モニター。
1 negative pressure environment maintenance system in the management area,
2 management area,
3 Cover member,
4 External,
5 Differential pressure gauge,
6 Dust meter
7 Negative pressure dust collector,
8 Airflow measuring instrument,
9 Control device,
10 Alarm device,
11 network,
12 Monitor.

Claims (2)

管理対象の管理区域を密封してカバーするカバー部材と、外部と前記管理区域とに接続されてこの両者の空気の差圧を測定する差圧計と、前記カバー部材の内部に配設され粉塵量を計測する粉塵量計測器と、前記カバー部材の内部に配設され外部に空気を排出する負圧集塵機と、前記負圧集塵機によってカバー部材の内部から外部に排出される風量を計測する風量計測器と、前記差圧計と粉塵量計測器と負圧集塵機と風量計測器とが電気的に接続される制御装置と、該制御装置に電気的に接続される警報装置と、制御装置と警報装置との間に介在されるネットワークとからなり、
前記差圧計と前記粉塵量計測器と前記風量計測器とにおける各々の管理値レベルを前記制御装置において比較して、該3カ所の計測器の計測値による管理値レベルのうちの最大値に対応した警報を前記警報装置から発するようにしたこと、
を特徴とする管理区域の負圧環境維持システム。
A cover member that seals and covers a management area to be managed, a differential pressure gauge that is connected to the outside and the management area and measures a differential pressure between the air, and an amount of dust disposed inside the cover member A dust volume measuring instrument that measures the air volume, a negative pressure dust collector that is disposed inside the cover member and discharges air to the outside, and an air volume measurement that measures the air volume discharged from the inside of the cover member by the negative pressure dust collector , A control device to which the differential pressure gauge, the dust amount measuring device, the negative pressure dust collector and the air flow measuring device are electrically connected, an alarm device electrically connected to the control device , a control device and an alarm device A network intervening between
Each control value level in the differential pressure gauge, the dust amount measuring device and the air flow measuring device is compared in the control device, and corresponds to the maximum value among the management value levels based on the measurement values of the three measuring devices. That the alarm was issued from the alarm device,
A negative pressure environment maintenance system for the management area.
管理値レベルは、現状維持の場合と現場事務所の作業者に警報を出す場合と作業者の作業を中止させる場合との3レベルに分かれていて、順に管理値レベルが高くなっていること、
を特徴とする請求項1に記載の管理区域の負圧環境維持システム。
The management value level is divided into three levels: the case where the current situation is maintained, the case where a warning is given to the worker in the field office, and the case where the worker's work is stopped, and the management value level becomes higher in order.
The negative pressure environment maintenance system for a management area according to claim 1.
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