JPH0549898B2 - - Google Patents
Info
- Publication number
- JPH0549898B2 JPH0549898B2 JP62079737A JP7973787A JPH0549898B2 JP H0549898 B2 JPH0549898 B2 JP H0549898B2 JP 62079737 A JP62079737 A JP 62079737A JP 7973787 A JP7973787 A JP 7973787A JP H0549898 B2 JPH0549898 B2 JP H0549898B2
- Authority
- JP
- Japan
- Prior art keywords
- room
- pressure
- door
- room pressure
- opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/0001—Control or safety arrangements for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
- F24F3/167—Clean rooms, i.e. enclosed spaces in which a uniform flow of filtered air is distributed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/0001—Control or safety arrangements for ventilation
- F24F2011/0002—Control or safety arrangements for ventilation for admittance of outside air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/40—Pressure, e.g. wind pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2130/00—Control inputs relating to environmental factors not covered by group F24F2110/00
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
- Control Of Fluid Pressure (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、クリーンルーム、環境試験室、バイ
オハザード施設、ケミカルハザード施設、原子力
施設等において室内外の相互汚染を防止するため
に利用される室圧制御装置に関する。Detailed Description of the Invention (Industrial Application Field) The present invention is applicable to rooms used to prevent cross-contamination between indoors and outdoors in clean rooms, environmental test chambers, biohazard facilities, chemical hazard facilities, nuclear facilities, etc. It relates to a pressure control device.
（従来の技術）
従来この種装置として、室圧制御室内に設ける
圧力センサと、該圧力センサからの実際の圧力信
号を設定圧力信号と比較して両信号の差に応じた
出力信号を発生する室圧コントローラと、該室圧
制御室内に連通する給・排気ダクトの少なくとも
いずれか一方に介設する室圧調整用のダンパとを
備え、該室圧コントローラからの出力信号により
該ダンパの開度を調整して該室圧制御室内の圧力
を設定圧力に維持するようにしたものは知られ
る。(Prior Art) Conventionally, this type of device includes a pressure sensor installed in a room pressure control chamber, and compares an actual pressure signal from the pressure sensor with a set pressure signal to generate an output signal according to the difference between the two signals. It is equipped with a room pressure controller and a damper for adjusting the room pressure installed in at least one of the supply and exhaust ducts communicating with the room pressure control chamber, and the opening degree of the damper is controlled by the output signal from the room pressure controller. It is known that the pressure inside the room pressure control chamber is maintained at a set pressure by adjusting the pressure.
（発明が解決しようとする問題点）
しかしながら、上記従来のものによれば、ドア
を介して連通される隣室内の室圧が室圧制御室内
の圧力と異なる場合であつて、例えば隣室も室圧
制御室と同様の室圧制御を行なつている場合、器
具、機材の搬入等のためドアを数十秒開いた後再
び閉めると、ドアを開いた当初は両室内の圧力が
夫々の設定圧力からずれた同一圧力となり、その
後両室の圧力は各々の室圧コントローラにより
各々の室圧調整用のダンパが調整されて夫々設定
圧力に維持されるもので、ドアを閉めている状態
と開いた状態とでは各ダンパの開度が大きく変化
するから、ドアを閉じる際各室への給・排気量が
ドアを閉めている通常の状態に対して過不足を生
じ、両室共大きな室圧変動を生じ、この大きな変
動に対しては通常の小さな変動と異なり両室の相
互汚染を防止し得ない不都合があつた。(Problems to be Solved by the Invention) However, according to the above-mentioned conventional method, when the pressure in the adjacent room communicated through the door is different from the pressure in the room pressure control room, for example, the adjacent room is also in the room. If the pressure in the room is controlled in the same way as in a pressure control room, if the door is opened for several tens of seconds and then closed again to bring in equipment or equipment, the pressure in both chambers will be at their respective settings when the door is first opened. After that, the pressure in both chambers is maintained at the set pressure by adjusting the damper for each chamber pressure adjustment by each chamber pressure controller, and the pressure in both chambers is maintained at the set pressure depending on whether the door is closed or open. When the door is closed, the opening degree of each damper changes greatly, so when the door is closed, the amount of supply and exhaust to each room is greater or less than the normal state when the door is closed, resulting in high room pressure in both rooms. However, there is a disadvantage in that it is not possible to prevent cross-contamination between the two chambers in response to such large variations, unlike in the case of normal small variations.
（問題点を解決するための手段）
本発明はドアを閉じる際に大きな室圧変動を生
じないようにして室内外の相互汚染を防止するこ
とのできる装置を提供しようとするものであつ
て、室圧制御室内に設ける圧力センサと、該圧力
センサからの実際の圧力信号を設定圧力信号と比
較して両信号の差に応じた出力信号を発生する室
圧コントローラと、該室圧制御室内に連通する
給・排気ダクトの少なくともいずれか一方に介設
する室圧調整用のダンパとを備え、該室圧コント
ローラからの出力信号により該ダンパの開度を調
整して該室圧制御室内の圧力を設定圧力に維持す
るようにしたものにおいて、該室圧制御室のドア
の開閉を検知する開閉検知センサを設け、該開閉
検知センサからのドアの開信号により該室圧コン
トローラの作動を一旦停止させ、続くドアの閉信
号により該室圧コントローラの作動を再度開始さ
せるようにしたことを特徴とする。(Means for Solving the Problems) The present invention aims to provide a device that can prevent cross-contamination between indoor and outdoor spaces by preventing large room pressure fluctuations when closing a door. A pressure sensor installed in the room pressure control chamber, a room pressure controller that compares the actual pressure signal from the pressure sensor with a set pressure signal and generates an output signal according to the difference between the two signals, and a room pressure controller installed in the room pressure control chamber. A damper for regulating room pressure is provided in at least one of the communicating supply and exhaust ducts, and the opening degree of the damper is adjusted according to an output signal from the room pressure controller to control the pressure in the room pressure control chamber. is maintained at a set pressure, an opening/closing detection sensor is provided to detect opening/closing of the door of the room pressure control room, and the operation of the room pressure controller is temporarily stopped in response to a door opening signal from the opening/closing detection sensor. The room pressure controller is characterized in that the room pressure controller is restarted in response to a subsequent door closing signal.
（作用）
本発明は上記構成によるもので、これによれ
ば、ドアを介して連通される隣室内の室圧が室圧
制御室内の設定圧力と異なる場合であつて、例え
ば隣室も室圧制御室と同様の空圧制御を行なつて
いる場合、器具の搬入等のためドアを数十秒開い
た後再び閉めると、ドアが開くと同時に開閉セン
サが検知して各室の室圧コントローラの作動は停
止され、室圧調整用のダンパの開度は開く直前の
開度に固定され、その後ドアを閉じると同時にこ
れを開閉センサが検知して各室の室圧コントロー
ラの作動が再度開始され、室圧調整用のダンパの
開度はドア開閉直前の開度に保たれていたものが
設定圧力に追従して調整され、両室内の圧力は
夫々の設定圧力となる。この場合、ドアの開状態
では両室内の圧力が夫々の設定圧力からずれた同
一圧力になるため、もし前記した従来のもののよ
うに各室の室圧コントローラの作動を継続してい
る場合は各室用のダンパの開度を変化させて各室
を設定室圧に保持しようとして室圧コントローラ
はダンパの開度を急激に変化させるが、実際はド
アの開状態は数十秒と長いため設定室圧にするこ
とはできず、やがでダンパは全閉か全開になり、
室圧コントローラは開度調節機能を失つていま
い、したがつてドアを閉じる際には室圧コントロ
ーラは設定圧力に戻そうとしてダンパの開度を急
激に変化させるので、室圧は異常変動をしてしま
う。ところが、本発明ではドアの開状態では室圧
コントローラの開度調節機能を一旦停止させるの
で、その後ドアを閉じる際に室圧が異常変動する
ようなことがなく、各室の相互汚染を生じること
なく各室の室圧制御をスムーズに再開できる。(Function) The present invention has the above configuration, and according to this, when the room pressure in the adjacent room communicated through the door is different from the set pressure in the room pressure control room, for example, the adjacent room is also under room pressure control. If the air pressure is controlled in the same way as in a room, if the door is opened for several tens of seconds and then closed again to bring in equipment, the opening/closing sensor detects the same moment the door opens, and the room pressure controller in each room is activated. The operation is stopped, and the opening degree of the damper for adjusting the room pressure is fixed at the opening degree immediately before opening.Then, as soon as the door is closed, the opening/closing sensor detects this and the room pressure controller in each room starts operating again. The opening degree of the damper for chamber pressure adjustment, which was maintained at the opening degree immediately before the door was opened and closed, is adjusted to follow the set pressure, and the pressures in both chambers become the respective set pressures. In this case, when the door is open, the pressure in both chambers becomes the same pressure that deviates from the respective set pressure, so if the room pressure controller in each chamber continues to operate as in the conventional system described above, In an attempt to maintain each room at the set room pressure by changing the opening of the damper for each room, the room pressure controller suddenly changes the damper's opening, but in reality the door remains open for a long period of several tens of seconds, so It is not possible to increase the pressure, and eventually the damper becomes fully closed or fully open.
The room pressure controller has lost its opening adjustment function, so when the door is closed, the room pressure controller rapidly changes the damper's opening in an attempt to return to the set pressure, so the room pressure will not fluctuate abnormally. Resulting in. However, in the present invention, since the opening adjustment function of the room pressure controller is temporarily stopped when the door is open, the room pressure does not fluctuate abnormally when the door is subsequently closed, and mutual contamination of each room does not occur. Room pressure control in each room can be resumed smoothly.
（実施例）
次に本発明の実施例を図面に基づいて説明す
る。(Example) Next, an example of the present invention will be described based on the drawings.
第１図はドア１，２を介して連通される室圧制
御室Ａとその隣室Ｂ，Ｃとを示すもで、各室に
は、給気フアン３からの新鮮な空気が室圧調整用
のダンパ４を備えた給気ダクト５を介して吹出口
６から送り込まれると共に室内の汚れた空気が排
気フアン７により吸込口８から排気ダクト９を介
して外部へ放出される。 Figure 1 shows a room pressure control room A and its adjacent rooms B and C, which are communicated via doors 1 and 2. Fresh air from an air supply fan 3 is supplied to each room to adjust the room pressure. Dirty air from the room is sent through an air supply duct 5 equipped with a damper 4 from an air outlet 6, and an exhaust fan 7 discharges dirty air from the air inlet 8 to the outside through an exhaust duct 9.
さらに、各室には、室圧を検知する圧力センサ
１０と、これからの実際の圧力信号を設定圧力信
号と比較して両信号の差に応じた出力信号を発生
する室圧コントローラ１１とを設けるもので、該
室圧コントローラ１１からの出力信号により前記
ダンパ４の開度を調整して室内の圧力を設定圧力
に維持する。 Furthermore, each chamber is provided with a pressure sensor 10 that detects the room pressure, and a room pressure controller 11 that compares the actual pressure signal from now on with a set pressure signal and generates an output signal according to the difference between the two signals. The opening degree of the damper 4 is adjusted based on the output signal from the room pressure controller 11 to maintain the indoor pressure at the set pressure.
該室圧コントローラ１１としては、比較器と演
算増幅器とから成るもの、制御用コンピユータか
ら成るもの等を用い、またダンパ４としてはモー
タで駆動されるもの、シリンダで駆動されるもの
等が用いられる。 As the room pressure controller 11, one consisting of a comparator and an operational amplifier, one consisting of a control computer, etc. is used, and as the damper 4, one driven by a motor, one driven by a cylinder, etc. are used. .
第１図中、１２は外部ドアを示す。 In FIG. 1, 12 indicates an external door.
上記した構成は前記従来装置と特に異なるもの
ではないが、本発明ではさらに室圧制御室Ａのド
ア１の開閉を検知する開閉検知センサ１３を設
け、該開閉検知センサ１３からのドア１の開信号
により前記室圧コントローラ１０の作動を停止さ
せ、続くドア１の閉信号により該室圧コントロー
ラ１１の作動を再度開始させるようにした。 Although the above-described configuration is not particularly different from the conventional device, the present invention further includes an opening/closing detection sensor 13 that detects opening/closing of the door 1 of the room pressure control room A, and detects the opening/closing of the door 1 from the opening/closing detection sensor 13. The operation of the room pressure controller 10 is stopped by a signal, and the operation of the room pressure controller 11 is restarted by a subsequent door 1 closing signal.
該開閉検知センサ１３としては、マグネツトス
イツチ、赤外線スイツチ、近接スイツチ等が用い
られる。 As the opening/closing detection sensor 13, a magnetic switch, an infrared switch, a proximity switch, etc. are used.
かくするときは、前記作用の項で述べたよう
に、ドア１を閉じる際においても各室の室圧変動
は小さく、したがつてドア１を閉じたと同時に各
室の室圧制御が正しく行なわれ、各室は夫々の設
定圧力に直ちに維持されると共に各室の相互汚染
も生じない。 In this case, as mentioned in the section of the operation above, even when the door 1 is closed, the fluctuation in the room pressure in each room is small, so that the room pressure in each room is correctly controlled at the same time as the door 1 is closed. , each chamber is immediately maintained at its respective set pressure, and cross-contamination of the chambers does not occur.
尚、第２図は上記実施例の室圧コントローラの
動作ブロツクの一例を示す。 Incidentally, FIG. 2 shows an example of the operation block of the room pressure controller of the above embodiment.
本願発明者は、ドア１の開閉時に室圧制御室Ａ
の室圧コントローラ１１の作動を停止させる本発
明と、ドア１の開閉時に室圧制御室Ａの室圧コン
トローラ１１の作動を継続させる従来のものとを
比較するため、上記実施例の室構成において、室
圧コントローラ１１により室圧調整用のダンパ４
Ａの開度を調整して各室の設定圧力を室圧制御室
Ａが−３mmAq、隣室Ｂが−５mmAq、隣室Ｃが−
１mmAqにし、室圧制御室Ａと隣室Ｃとの間のド
ア１を開閉した場合について実験を行なつた。 The inventor of the present application has developed a system in which the room pressure control room A is
In order to compare the present invention in which the operation of the room pressure controller 11 in the room pressure control room A is stopped with the conventional one in which the operation of the room pressure controller 11 in the room pressure control room A is continued when the door 1 is opened and closed, , a damper 4 for adjusting the room pressure by the room pressure controller 11
Adjust the opening degree of A to set the set pressure in each chamber to -3 mmAq for room pressure control room A, -5 mmAq for adjacent room B, and -5 mmAq for adjacent room C.
An experiment was conducted in the case where the pressure was set at 1 mmAq and the door 1 between the room pressure control room A and the adjacent room C was opened and closed.
その結果、ドア１を開くと、両室Ａ，Ｃの室圧
が開いた当初は設定圧力からずれた同一圧力とな
り、その後ドア１が開いている間は夫々の設定圧
力に戻る点において本発明と従来のものとは共通
するが、ドア１を開いた当初の各室の給気量及び
ドア１を閉じた時の給気量が本発明では第３図の
ように変動が小さいのに対して従来のものでは第
４図のように変動が大きい点で全く異なる。 As a result, when the door 1 is opened, the pressures in both chambers A and C become the same pressure that is different from the set pressure at the beginning of the opening, and then return to their respective set pressures while the door 1 is open. This is common to the conventional system, but in the present invention, the amount of air supplied to each room when the door 1 is opened and the amount of air supplied when the door 1 is closed has small fluctuations, as shown in Fig. 3. The conventional method is completely different in that the fluctuation is large as shown in FIG.
この相違は、ドア１を開閉したとき、本発明で
は、ドア１の開時にＡ室の室圧コントローラ１１
作動を停止させるので、ドア１が開いている間中
ダンパ４Ａの開度は開く直前の開度を保つことに
なるのに対して、従来のものでは、ドア１の開閉
時に室圧コントローラ１１の作動を継続させるの
で、ドア１を開けたときの各室の圧力変動が各圧
力センサ１０により検知され、室圧制御室Ａの圧
力は設定圧力より高くなつており、隣室Ｃの圧力
は設定圧力より低くなつているため、各室圧コン
トローラ１１により室圧制御室Ａのダンパ４Ａの
開度が小さくされ、隣室Ｃのダンパ４Ｃの開度が
大きくされて両室Ａ，Ｃが設定圧力に維持される
からである。 This difference is that when the door 1 is opened or closed, in the present invention, when the door 1 is opened, the room pressure controller 11 of the room A
Since the operation is stopped, the opening degree of the damper 4A is maintained at the opening degree immediately before opening while the door 1 is open. Since the operation is continued, the pressure fluctuations in each chamber when the door 1 is opened are detected by each pressure sensor 10, and the pressure in the room pressure control chamber A is higher than the set pressure, and the pressure in the adjacent room C is higher than the set pressure. Since the pressure has become lower, each room pressure controller 11 reduces the opening degree of the damper 4A in the room pressure control chamber A, and increases the opening degree of the damper 4C in the adjacent chamber C to maintain both chambers A and C at the set pressure. This is because it will be done.
したがつて、ドア１を閉じる際、本発明ではダ
ンパ４の開度がドア１を開く直前の開度と同じ程
度であるため、両室Ａ，Ｃの給気量の変動はドア
１のピストン作用によるものの外殆どなく、両室
Ａ，Ｃの相互汚染が生じないが、従来のものでは
ダンパ４の開度がドア１を開く直前の開度と異な
るため、両室Ａ，Ｃの給気量の変動は大きく、両
室Ａ，Ｃの相互汚染が生じる。 Therefore, when closing the door 1, in the present invention, the opening degree of the damper 4 is approximately the same as the opening degree immediately before the door 1 is opened, so that fluctuations in the amount of air supplied to both chambers A and C are caused by the piston of the door 1. There is almost no cross-contamination between the chambers A and C, as this is mostly due to the action, but in the conventional model, the opening degree of the damper 4 is different from the opening degree just before the door 1 is opened, so the air supply to both chambers A and C is The amount fluctuates widely, resulting in cross-contamination of both chambers A and C.
尚、図示の実施例では、室圧調整用のダンパ４
を給気ダクト５に備える構成としたが、該ダンパ
４を排気ダクト９に備える構成としても同様の作
用、効果が得られる。 In the illustrated embodiment, the damper 4 for adjusting the room pressure is
Although the damper 4 is provided in the air supply duct 5, similar functions and effects can be obtained by providing the damper 4 in the exhaust duct 9.
（発明の効果）
このように本発明によるときは、室圧制御室の
ドアの開閉を常時開閉センサで監視し、ドアが開
いている間は室圧コントローラの作動を停止さ
せ、室圧調整用のダンパの開度をドアを開く直前
の開度に固定するようにしたので、室圧制御室の
給・排気量がドアの開閉時とドアを閉めたままの
通常時とで殆ど変化せず、したがつてドア開閉時
に室圧制御内外の相互汚染が防止される効果を生
じる。(Effects of the Invention) As described above, according to the present invention, the opening and closing of the door of the room pressure control room is constantly monitored by the opening/closing sensor, and while the door is open, the operation of the room pressure controller is stopped, and the Since the opening of the damper is fixed at the opening just before the door is opened, the supply/exhaust volume of the room pressure control room hardly changes between when the door is opened and closed and during normal operation when the door is closed. Therefore, mutual contamination inside and outside the room pressure control is prevented when the door is opened and closed.
第１図は本発明の実施の１例を示す説明線図、
第２図は第１図の実施例の作動説明図、第３図は
第１図の実施例においてドアを開いたとき室圧制
御室の室圧コントローラのみを停止させる場合の
実験結果をペン書き記録計で表わした図、第４図
は従来例の実験結果を同じくペン書き記録計で表
わした図である。
１……ドア、４，４Ａ……室圧調整用のダン
パ、１０……圧力センサ、１１……室圧コントロ
ーラ、１３……開閉センサ。
FIG. 1 is an explanatory diagram showing one example of implementation of the present invention,
Figure 2 is an explanatory diagram of the operation of the embodiment shown in Figure 1, and Figure 3 is a pencil drawing of the experimental results when only the room pressure controller in the room pressure control room is stopped when the door is opened in the embodiment shown in Figure 1. FIG. 4 is a diagram showing the experimental results of the conventional example using a pen recorder. DESCRIPTION OF SYMBOLS 1... Door, 4, 4A... Damper for room pressure adjustment, 10... Pressure sensor, 11... Room pressure controller, 13... Opening/closing sensor.
Claims (1)
センサからの実際の圧力信号を設定圧力信号と比
較して両信号の差に応じた出力信号を発生する室
圧コントローラと、該室圧制御室内に連通する
給・排気ダクトの少なくともいずれか一方に介設
する室圧調整用のダンパとを備え、該室圧コント
ローラからの出力信号により該ダンパの開度を調
整して該室圧制御室内の圧力を設定圧力に維持す
るようにしたものにおいて、該室圧制御室のドア
の開閉を検知する開閉検知センサを設け、該開閉
検知センサからのドアの開信号により該室圧コン
トローラの作動を一旦停止させ、続くドアの閉信
号により該室圧コントローラの作動を再度開始さ
せるようにしたことを特徴とする室圧制御装置。1 A pressure sensor installed in the room pressure control chamber, a room pressure controller that compares the actual pressure signal from the pressure sensor with a set pressure signal and generates an output signal according to the difference between the two signals, and a pressure sensor installed in the room pressure control chamber. and a damper for adjusting room pressure interposed in at least one of the supply and exhaust ducts communicating with the room pressure controller, and the opening degree of the damper is adjusted by the output signal from the room pressure controller to control the temperature inside the room pressure control room. In a system that maintains the pressure at a set pressure, an opening/closing detection sensor is provided to detect the opening/closing of the door of the room pressure control room, and the room pressure controller is temporarily activated by the door opening signal from the opening/closing detection sensor. A room pressure control device characterized in that the room pressure controller is stopped and restarted by a subsequent door closing signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62079737A JPS63247542A (en) | 1987-04-02 | 1987-04-02 | Room pressure control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62079737A JPS63247542A (en) | 1987-04-02 | 1987-04-02 | Room pressure control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63247542A JPS63247542A (en) | 1988-10-14 |
| JPH0549898B2 true JPH0549898B2 (en) | 1993-07-27 |
Family
ID=13698523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62079737A Granted JPS63247542A (en) | 1987-04-02 | 1987-04-02 | Room pressure control system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63247542A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008170056A (en) * | 2007-01-11 | 2008-07-24 | Dai-Dan Co Ltd | Room pressure control method and apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050010527A (en) * | 2003-07-21 | 2005-01-28 | 바이오공조시스템주식회사 | System and control method for difference pressure control of bio room |
| JP4630125B2 (en) * | 2005-05-13 | 2011-02-09 | ダイダン株式会社 | Air conditioning system |
| JP4714517B2 (en) * | 2005-07-12 | 2011-06-29 | ダイダン株式会社 | Air conditioning system |
| JP4684921B2 (en) * | 2006-03-13 | 2011-05-18 | 高砂熱学工業株式会社 | Room pressure control method and room pressure control system |
| JP2009036425A (en) * | 2007-08-01 | 2009-02-19 | Hitachi Plant Technologies Ltd | Room pressure control method and system |
| JP2009036426A (en) * | 2007-08-01 | 2009-02-19 | Hitachi Plant Technologies Ltd | Room pressure control method and system |
| JP4844899B2 (en) * | 2007-08-31 | 2011-12-28 | 株式会社日立プラントテクノロジー | Air conditioning system for bioprocessing facility |
| JP5615657B2 (en) * | 2010-10-05 | 2014-10-29 | ダイダン株式会社 | Indoor pressure control system |
| JP5150741B2 (en) * | 2011-02-09 | 2013-02-27 | ダイダン株式会社 | Air conditioning system |
| JP6770357B2 (en) * | 2016-07-11 | 2020-10-14 | 株式会社日立プラントサービス | Air conditioning system for clean rooms |
-
1987
- 1987-04-02 JP JP62079737A patent/JPS63247542A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008170056A (en) * | 2007-01-11 | 2008-07-24 | Dai-Dan Co Ltd | Room pressure control method and apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63247542A (en) | 1988-10-14 |
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