JPH0386181A - Fire extinguisher with automatic checking function - Google Patents
Fire extinguisher with automatic checking functionInfo
- Publication number
- JPH0386181A JPH0386181A JP22551389A JP22551389A JPH0386181A JP H0386181 A JPH0386181 A JP H0386181A JP 22551389 A JP22551389 A JP 22551389A JP 22551389 A JP22551389 A JP 22551389A JP H0386181 A JPH0386181 A JP H0386181A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- automatic inspection
- fire extinguishing
- check valve
- fire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 81
- 238000001514 detection method Methods 0.000 claims description 80
- 238000007689 inspection Methods 0.000 claims description 72
- 238000012360 testing method Methods 0.000 claims description 16
- 230000007257 malfunction Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000013100 final test Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
Landscapes
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、スプリンクラ−ヘッドを接続した分枝管の管
末に設けた弁を開いた疑似火災状態に基づき消火ポンプ
の試験運転を行なって、各種のデータを計測して設備状
態を判断する自動点検機能を有する消火装置に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a test operation of a fire pump based on a simulated fire condition in which a valve provided at the end of a branch pipe connected to a sprinkler head is opened. , relates to a fire extinguishing system that has an automatic inspection function that measures various data and determines the equipment condition.
［従来の技術］
従来、建物に設置される消火ポンプを備えた消火設備は
、定期的に機能点検を行うことが義務付けられている。[Prior Art] Conventionally, fire extinguishing equipment equipped with a fire pump installed in a building is required to undergo periodic functional inspections.
例えばスプリンクラ−消火設備にあっては、スプリンク
ラ−ヘッドが接続されている分岐管の管末に設けた電動
弁を遠隔的に開いて、スプリンクラ−ヘッドが火災で作
動したと同じ状態を疑似的に作り出し、分岐管に設けて
いる流水検知装置から流水検知信号に基づいてポンプ制
御盤により消火ポンプを起動させる。そして、ポンプ運
転状態で管内圧力、モータ電圧や電流等の所定のデータ
を計測して判断する自動点検を行う。For example, in the case of sprinkler fire extinguishing equipment, an electric valve installed at the end of a branch pipe to which a sprinkler head is connected is opened remotely to create a simulated situation similar to when the sprinkler head is activated due to a fire. The fire pump is activated by the pump control panel based on the flowing water detection signal from the flowing water detection device installed in the branch pipe. Then, automatic inspection is performed in which predetermined data such as pipe pressure, motor voltage, and current are measured and determined while the pump is in operation.
一連の自動点検が終了すると、管末の弁を閉鎖し、その
後に流水検知装置に設けている圧力センサの検出圧力が
規定圧力を検出した時に、消火ポンプのモータ駆動を停
止する。このような管末弁の開放による自動点検は、階
別に順次繰り返される。When the series of automatic inspections is completed, the valve at the end of the pipe is closed, and when the pressure detected by the pressure sensor installed in the water flow detection device reaches the specified pressure, the fire pump motor drive is stopped. Such automatic inspection by opening the pipe end valve is repeated one after another for each floor.
ここで、分岐管に設けられた流水検知装置は、ポンプ側
の一次圧力とスプリンクラ−ヘッド側の二次圧力に基づ
いて開閉する逆止弁を備えており、スプリンクラ−ヘッ
ド作動時の二次圧力の低下で逆止弁が開き、圧力スイッ
チが逆止弁が開いた際の一次側圧力を受けて作動するこ
とで流水検知信号（逆止弁開放信号）を出力する。Here, the flowing water detection device installed in the branch pipe is equipped with a check valve that opens and closes based on the primary pressure on the pump side and the secondary pressure on the sprinkler head side. The check valve opens when the check valve opens, and the pressure switch outputs a water flow detection signal (check valve open signal) by operating in response to the primary pressure when the check valve opens.
［発明が解決しようとする課題］
しかしながら、このような従来の自動点検機能を有する
消火装置にあっては、管末の弁を開いて消火ポンプの駆
動を行なう自動点検を階別に繰り返している時に、他の
階の分岐管に設けている流水検知装置が消火ポンプの起
動時に誤動作して流水検知出力を生じ、点検対象階以外
の階からの流水検知出力であることから、火災と判断さ
れ、自動点検を強制的に終了させて消火のためのポンプ
運転に移行してしまう問題があった。[Problems to be Solved by the Invention] However, in the conventional fire extinguishing system having an automatic inspection function, when repeating automatic inspection for each floor by opening the valve at the end of the pipe and driving the fire pump, A running water detection device installed in a branch pipe on another floor malfunctioned when the fire pump started, producing a running water detection output, and since the running water detection output was from a floor other than the floor being inspected, it was determined that there was a fire. There was a problem in which the automatic inspection was forcibly terminated and pump operation was started to extinguish the fire.
この原因は、第７図に示すように、スプリンクラ−ヘッ
ド３２を接続した分岐管３０は、建物の天井面の凹凸に
沿った形で配管されており、設備の完成時に十分なエア
ー抜きを行った後に管内に消火用水を充満させているが
、長い間に分岐管３２の高くなった部分Ａに空気が溜る
ようになる。The reason for this is that, as shown in Figure 7, the branch pipe 30 to which the sprinkler head 32 is connected is routed along the unevenness of the ceiling of the building, and sufficient air bleeding is required when the equipment is completed. Although the pipe is filled with water for fire extinguishing purposes after the fire extinguishing, air becomes trapped in the raised portion A of the branch pipe 32 over a long period of time.
このように分岐管内に空気が溜っていると、自動点検の
際に、次の別の階の管末弁を開いてポンプを起動させる
と、点検対象となっていない階の分岐管内に封じ込まれ
ている空気のバネ作用により容積変化を起こし、この空
気のバネ作用によって流水検知装置の逆止弁が開いたり
閉じたりし、その結果、誤った流水検知出力を生ずるよ
うになる。If air is trapped in the branch pipe in this way, when the end valve of the next floor is opened and the pump is started during automatic inspection, air will be trapped in the branch pipe of the floor that is not being inspected. The spring action of the trapped air causes a change in volume, and the spring action of the air causes the check valve of the water flow detection device to open or close, resulting in an erroneous water flow detection output.
本発明は、このような従来の問題点に鑑みてなされたも
ので、分岐管内の封じ込め空気による流水検知装置の誤
動作を確実に防止するようにした自動点検機能を有する
消火装置を提供することを目的とする。The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a fire extinguishing system having an automatic inspection function that reliably prevents malfunction of a flowing water detection device due to confined air in a branch pipe. purpose.
［課題を解決するための手段］
まず本発明は、モータ駆動され消火用水を加圧供給する
消火ポンプと；該消火ポンプに接続され建物の垂直方向
に立ち上げられた給水本管と：該給水本管に分岐接続さ
れた複数の分岐管と；該分岐管に設けられたスプリンク
ラ−ヘッドと；前記分岐管に設けられ給水本管側の一次
圧力とスプリンクラ−ヘッド側の二次圧力とに基づいて
開閉する逆止弁及び該逆止弁の開閉を検出する開閉検出
手段を有する流水検知装置と；前記分岐管の管末に設け
られ、弁の開放により前記スプリンクラ−ベツドが作動
したと同じ状態を疑似的に作り出す管末試験装置と；所
定時間毎に前記管末試験装置に弁を開放させ、該弁開放
に伴う前記流水検知装置からの逆止弁の開放検出出力に
基づいて前記消火ポンプを起動させて自動点検を行い、
自動点検を終了した際には前記管末試験装置の弁を閉鎖
させた後に消火ポンプを停止させる自動点検制御手段と
；を備えた自動点検機能を有する消火装置を対象とする
。[Means for Solving the Problems] First, the present invention provides: a fire extinguishing pump that is driven by a motor and supplies fire extinguishing water under pressure; a water main connected to the fire extinguishing pump and erected in the vertical direction of a building; A plurality of branch pipes branched and connected to the main pipe; A sprinkler head provided in the branch pipe; Based on the primary pressure on the water supply main side and the secondary pressure on the sprinkler head side provided in the branch pipe. a flowing water detection device having a check valve that opens and closes when the check valve opens and closes, and an opening/closing detection means that detects the opening and closing of the check valve; provided at the end of the branch pipe, the state is the same as when the sprinkler bed is activated when the valve is opened; a pipe end testing device that simulates the above; the fire pump is configured to cause the pipe end testing device to open a valve at predetermined time intervals, and to detect the opening of the check valve from the flowing water detection device as the valve is opened; Start up and perform automatic inspection,
The subject matter is a fire extinguishing system having an automatic inspection function, comprising: an automatic inspection control means that closes the valve of the pipe end test device and then stops the fire pump when the automatic inspection is completed;
このような消火装置につき本発明にあっては、前記自動
点検制御手段に、自動点検を終了して前記管末試験装置
の弁を閉鎖させた後に、前記流水検知装置の開閉検出手
段による逆止弁の閉鎖検出出力の有無を監視し、該閉鎖
検出出力が得られた時には、予め定めた所定時間のあい
だ前記消火ポンプの運転を継続させた後に停止させる停
止制御手段を設けるように構成したものである。In the present invention for such a fire extinguishing device, after the automatic inspection control means finishes the automatic inspection and closes the valve of the pipe end testing device, a check is performed by the opening/closing detection means of the flowing water detection device. A device configured to be provided with a stop control means that monitors the presence or absence of a valve closure detection output and, when the closure detection output is obtained, causes the fire pump to continue operating for a predetermined period of time and then stops. It is.
［作用〕
このような構成を備えた本発明による自動点検機能を有
する消火装置によれば、分岐管内に空気層が形成されて
いても、流水検知装置の逆止弁の閉鎖を検知してから所
定時間のあいだ消火ポンプの運転を継続させ、管内圧力
を高めて空気を十分な高圧状態に圧縮した後に消火ポン
プを停止させることとなり、次に消火ポンプを起動して
も、分岐管内の空気は高圧に圧縮された状態にあるため
に、バネ性を殆どもっておらず、流水検知装置の逆止弁
は確実に閉鎖状態に保持され、ポンプ運転を伴う自動点
検を繰り返しても、誤って流水検知装置から火災検出を
示す流水検知信号が出力されることを確実に防止できる
。[Function] According to the fire extinguishing system having an automatic inspection function according to the present invention having such a configuration, even if an air layer is formed in the branch pipe, the fire extinguishing system can detect the closing of the check valve of the flowing water detection device. After the fire pump continues to operate for a predetermined period of time, increasing the pressure inside the pipe and compressing the air to a sufficiently high pressure state, the fire pump is stopped.Even if the fire pump is started next time, the air in the branch pipe will not be Because it is compressed to high pressure, it has almost no spring properties, and the check valve of the water flow detection device is reliably kept closed, resulting in false detection of water flow even after repeated automatic inspections involving pump operation. It is possible to reliably prevent the device from outputting a running water detection signal indicating fire detection.
［実施Ｎ］
第３図は本発明が適用される自動点検機能を有する消火
設備の配管構成を示した実施例構成図である。[Implementation N] FIG. 3 is an embodiment configuration diagram showing the piping configuration of a fire extinguishing equipment having an automatic inspection function to which the present invention is applied.
第３図において、１０は消火ポンプであり、モータ１２
により駆動され、貯水槽２４からの消火用水を加圧して
仕切弁４４を介して建物の垂直方向に立ち上げられた給
水本管２６に供給する。モータ１２は消火ポンプ制御盤
４００により起動、停止される。In FIG. 3, 10 is a fire pump, and a motor 12
The pressurized fire extinguishing water from the water tank 24 is supplied via the gate valve 44 to the water main 26 extending vertically into the building. The motor 12 is started and stopped by the fire pump control panel 400.
給水本管２６の先端は屋上等に設置された高架水槽２８
に接続される。また消火ポンプ１０の吐出側には呼水槽
５０が接続される。The tip of the water main 26 is an elevated water tank 28 installed on the roof, etc.
connected to. Further, a priming tank 50 is connected to the discharge side of the fire pump 10.
給水本管２６の途中からは各階毎に分岐管３０が分岐接
続される。尚、説明を簡単にするため１つの階の分岐管
引き出しのみを示している。分岐管３０には流水検知装
置１４が設けられ、流水検知装置１４の２次側にスプリ
ンクラ−ヘッド３２を接続している。分岐管３０は図示
のように建物の天井面の凹凸に沿って配管されており、
分岐管３０の配管位置の高い部分について空気が溜り易
くなっている。A branch pipe 30 is branched and connected from the middle of the water supply main pipe 26 to each floor. Note that for the sake of simplicity, only the branch pipe drawer on one floor is shown. A running water detection device 14 is provided in the branch pipe 30, and a sprinkler head 32 is connected to the secondary side of the running water detection device 14. As shown in the figure, the branch pipe 30 is installed along the unevenness of the ceiling surface of the building.
Air tends to accumulate in the high piping position of the branch pipe 30.
分岐管３０の管末には管末試験装置３４が設けられる。A tube end testing device 34 is provided at the tube end of the branch pipe 30.
管末試験装置３４は、仕切弁３６、電動弁１６及びスプ
リンクラ−ヘッド３２が１個作動したに相当する流量を
流すオリフィス３８を有する。また分岐管３０内の管内
圧力を検出する圧力センサ４０及び圧力計４２を設けて
いる。更にローカル中継器３００が設けられ、ローカル
中継器３００に対する制御信号で電動弁１６の開閉制御
を行ない、また圧力センサ４０の検出圧力を外部に転送
する。The tube end test device 34 has an orifice 38 through which a flow rate corresponding to one gate valve 36, one electric valve 16, and one sprinkler head 32 is activated. Further, a pressure sensor 40 and a pressure gauge 42 are provided to detect the pressure inside the branch pipe 30. Furthermore, a local repeater 300 is provided, and controls the opening and closing of the electric valve 16 using a control signal to the local repeater 300, and also transfers the pressure detected by the pressure sensor 40 to the outside.
更に給水本管２６の仕切弁４４の二次側には圧力タンク
４６が分岐接続され、給水本管２６の管内圧力により圧
力タンク４６内の空気を圧縮しており、この圧縮空気の
圧力は圧力センサ４８で監視され、圧力センサ４８の検
出圧力が規定値以下に下がるとモータ１２の起動により
消火ポンプ１０を運転して、給水本管２６の管内圧力を
常に規定圧力に保つようにしている。Furthermore, a pressure tank 46 is branch-connected to the secondary side of the gate valve 44 of the water supply main 26, and the air in the pressure tank 46 is compressed by the internal pressure of the water supply main 26, and the pressure of this compressed air is equal to the pressure. It is monitored by a sensor 48, and when the detected pressure of the pressure sensor 48 falls below a specified value, the motor 12 is started to operate the fire pump 10, so that the internal pressure of the water supply main 26 is always maintained at the specified pressure.
第４図は第３図の分岐管３０に設けられた流水検知装置
１４の一実施例を示した実施例構成図である。FIG. 4 is an embodiment configuration diagram showing an embodiment of the flowing water detection device 14 provided in the branch pipe 30 of FIG. 3.
第４図において、流水検知装置１４は、開閉自在に設け
られた弁ディスク８２と、この弁ディスク８２を受けて
流路を閉鎖する弁シート８４を備えた逆止弁８０を、弁
本体として有する。弁シート８４の弁ディスク８２によ
り閉鎖される位置には圧力スイッチ加圧口８６が設けら
れており、圧力スイッチ加圧口８６を信号停止弁９２を
介して圧力スイッチ９０に配管接続している。また圧力
スイッチ加圧口８６は親子弁８８側に設けられた配水管
９６に逆止弁としての機能を有するオートドリップ９４
を介して連通されている。In FIG. 4, the flowing water detection device 14 has a check valve 80 as a valve body, which is provided with a valve disc 82 that can be opened and closed, and a valve seat 84 that receives the valve disc 82 and closes the flow path. . A pressure switch pressurizing port 86 is provided at a position of the valve seat 84 that is closed by the valve disc 82 , and the pressure switch pressurizing port 86 is pipe-connected to a pressure switch 90 via a signal stop valve 92 . Further, the pressure switch pressurizing port 86 is connected to a water pipe 96 provided on the side of the parent-child valve 88 through an auto-drip 94 that functions as a check valve.
communicated via.
この流水検知装置１４の動作は次のようになる。The operation of this running water detection device 14 is as follows.
まず給水本管２６側となる一次圧力Ｐ１とスプリンクラ
−ヘッド３２側となる二次圧力Ｐ２が等しい消火ポンプ
の停止状態にあっては、逆止弁８０の弁ディスク８２は
第４図に示すように自重で弁シート８４に閉じた状態に
ある。このため圧力スイッチ９０はオートドリップ９４
を介して配水管９６側に開放されており、流水検出出力
は生じていない。即ち、圧力スイッチ９０はスイッチオ
フ状態にあり、このスイッチオフ状態の検出出力が逆止
弁８０の閉鎖検出出力となる。First, when the fire pump is in a stopped state, where the primary pressure P1 on the water supply main 26 side and the secondary pressure P2 on the sprinkler head 32 side are equal, the valve disc 82 of the check valve 80 moves as shown in FIG. The valve seat 84 is in a closed state due to its own weight. For this reason, the pressure switch 90 is
It is opened to the water distribution pipe 96 side through the pipe, and no flowing water detection output is generated. That is, the pressure switch 90 is in the switch-off state, and the detection output of this switch-off state becomes the closure detection output of the check valve 80.
次にスプリンクラ−ヘッド３２が火災により作動した場
合、あるいは自動点検のために管末試験装置３４の電動
弁１６を開いた場合には、二次側圧力Ｐ２の低下に伴っ
て第５図に示すように逆止弁８０の弁ディスク８２が開
く。このため圧力スイッチ加圧口８６が開かれて圧力ス
イッチ９０に管内圧力が供給されることでスイッチオン
状態となり、圧力スイッチ９０のスイッチオンにより流
水検出出力（逆止弁開放検出出力）を生じ、モータ駆動
による消火ポンプ１０の運転が開始される。Next, when the sprinkler head 32 is activated due to a fire, or when the electric valve 16 of the tube end testing device 34 is opened for automatic inspection, the secondary side pressure P2 decreases as shown in FIG. As such, the valve disc 82 of the check valve 80 opens. For this reason, the pressure switch pressurizing port 86 is opened and the pressure inside the pipe is supplied to the pressure switch 90, which turns the switch on, and when the pressure switch 90 is switched on, a flowing water detection output (check valve open detection output) is generated. The motor-driven operation of the fire extinguishing pump 10 is started.
逆止弁８０の弁ディスク８２は消火ポンプ１０の運転に
より一次側より消火用水が加圧供給して流れている限り
、開放状態を維持する。The valve disk 82 of the check valve 80 remains open as long as fire extinguishing water is supplied under pressure from the primary side and flows through the operation of the fire pump 10.
尚、流水検知装置１４に設けられた親子弁８８は、第５
図に示すように逆止弁８０を試験的に手動により作動さ
せる場合に開かれ、この状態はスプリンクラ−ヘッドの
作動時又は管未開放試験時と全く同じ動作となる。勿論
、親子弁８８は必ずしも設ける必要はない。Incidentally, the parent-child valve 88 provided in the flowing water detection device 14 is the fifth
As shown in the figure, the check valve 80 is opened when it is operated manually on a trial basis, and this state is exactly the same as when the sprinkler head is operated or when the pipe is not opened. Of course, the parent-child valve 88 does not necessarily need to be provided.
第６図は第４図の消火装置の配管設備構成を対象とした
本発明が適用される消火装置の自動点検システムを示し
たシステム構成図である。FIG. 6 is a system configuration diagram showing an automatic inspection system for a fire extinguishing system to which the present invention is applied, targeting the piping equipment configuration of the fire extinguishing system shown in FIG. 4.
第６図において、１００はセンター側に設置された自動
点検管理盤であり、所定の点検時間毎に現場設置された
自動点検中継盤２００に対し自動点検の開始を指令する
。自動点検中継盤２００は自動点検管理盤１００からの
点検開始指令を受けた際に、ＣＰＵ５２によるプログラ
ム制御に従って所定の自動点検処理を実行し、この自動
点検項目の中に第４図に示した管末試験装置３４の電動
弁１６を開いて消火ポンプ１０を運転させる点検項目が
含まれる。In FIG. 6, reference numeral 100 denotes an automatic inspection management board installed on the center side, which instructs an automatic inspection relay board 200 installed at the site to start automatic inspection at every predetermined inspection time. When the automatic inspection relay board 200 receives an inspection start command from the automatic inspection management board 100, it executes a predetermined automatic inspection process under program control by the CPU 52, and includes the pipes shown in FIG. 4 among the automatic inspection items. Inspection items include opening the electric valve 16 of the final test device 34 and operating the fire pump 10.
自動点検管理盤１００に対しては、第３図の管末試験装
置３４に設けられたローカル中継器３００、消火ポンプ
制御盤４００、表示部操作部５００、電動弁１６を含む
各種の端末機器６００１電流計、電圧計、圧力計等の各
種のアナログ情報を検出するアナログ端末機器７００が
接続され、更に特定のアナログ端末機器８００について
はアナログ計測ユニット９００を介して接続される。For the automatic inspection management panel 100, various terminal devices 6001 including a local repeater 300, a fire pump control panel 400, a display operation section 500, and an electric valve 16 provided in the pipe terminal testing device 34 in FIG. Analog terminal equipment 700 that detects various types of analog information such as an ammeter, a voltmeter, and a pressure gauge are connected, and a specific analog terminal equipment 800 is connected via an analog measurement unit 900.
自動点検中継盤２００内には、ＣＰＵ５２による自動点
検のプログラム制御を実現するため、自動点検管理盤１
００を接続する入出力インタフェース５４及びシリアル
インタフェース６０、ＲＯＭ５６、ＲＡＭ５８、ローカ
ル中継器３００に対するシリアルインタフェース６２、
ＣＰＵ５２の暴走を監視するウォッチドッグ回路６４、
各種の基準クロックを発生するタイマ６６、表示部操作
部５００に対する入出力インタフェース６８、端末機器
６００．消火ポンプ制御盤４００及びアナログ計測ユニ
ット９００に対する入出力インタフエース７０ａ〜７０
ｎ１更にアナログ端末機器７ｏｏ、ｓｏｏの検出信号を
Ａ／Ｄ変換するＡ／Ｄコンバータ７２が設けられる。The automatic inspection relay board 200 includes an automatic inspection management board 1 in order to realize automatic inspection program control by the CPU 52.
00, an input/output interface 54 and a serial interface 60, a ROM 56, a RAM 58, a serial interface 62 for the local repeater 300,
a watchdog circuit 64 that monitors runaway of the CPU 52;
A timer 66 that generates various reference clocks, an input/output interface 68 for the display operation section 500, a terminal device 600. Input/output interfaces 70a to 70 for fire pump control panel 400 and analog measurement unit 900
n1 is further provided with an A/D converter 72 for A/D converting the detection signals of the analog terminal devices 7oo and soo.
第１図は第３〜６図で明らかにされた本発明の対象とす
る自動点検機能を有する消火装置における本発明の主要
部構成を示した実施例構成図である。FIG. 1 is an embodiment configuration diagram showing the configuration of the main parts of the present invention in a fire extinguishing system having an automatic inspection function, which is the object of the present invention as clarified in FIGS. 3 to 6.
第１図において、２００は自動点検中継盤であり、本発
明による管末の弁を開いた消火ポンプの運転を伴う自動
点検時における流水検知装置の誤動作を防止するため、
停止制御部２０及びタイマ２２を備えた自動点検制御部
１８が設けられる。In FIG. 1, 200 is an automatic inspection relay board, in order to prevent malfunction of the flowing water detection device during automatic inspection accompanied by the operation of the fire pump with the valve at the end of the pipe opened according to the present invention.
An automatic inspection control section 18 including a stop control section 20 and a timer 22 is provided.
自動点検制御部１８に対しては第４，５図に示した構造
の流水検知装置１４からの検出出力が与えられる。また
自動点検制御部１８よりポンプ制御盤４００に対し起動
／停止信号が与えられ、モータ１２の駆動により消火ポ
ンプ１０の運転停止を行なうようにしている。更に自動
点検制御部１８よりローカル中継器３００に対し分岐管
の管末に設けた電動弁１６を開閉制御する信号を出力す
る。The detection output from the running water detection device 14 having the structure shown in FIGS. 4 and 5 is supplied to the automatic inspection control section 18. Further, a start/stop signal is given to the pump control panel 400 from the automatic inspection control section 18, and the fire pump 10 is stopped by driving the motor 12. Further, the automatic inspection control unit 18 outputs a signal to the local repeater 300 to control the opening and closing of the electric valve 16 provided at the end of the branch pipe.
勿論、自動点検制御部１８に対しては、上位装置として
の自動点検管理盤１００側よζ、所定時間毎に点検指令
が行なわれる。Of course, an inspection command is issued to the automatic inspection control unit 18 at predetermined time intervals from the automatic inspection management panel 100 as a host device.
自動点検制御部１８に設けられた停止制御部２０は、自
動点検終了時にローカル中継器３００を介して分岐管の
管末に設けた電動弁１６を閉鎖した後、流水検知装置１
４より逆止弁の閉鎖検出出力が得られるか否か監視して
おり、逆止弁閉鎖検出出力が得られるとタイマ２２を起
動し、タイマ２２にセットされた所定時間が経過してタ
イムアツプ出力が得られた時に、消火ポンプ制御盤４０
０に対しポンプ停止を指令するようになる。A stop control unit 20 provided in the automatic inspection control unit 18 closes the electric valve 16 provided at the end of the branch pipe via the local repeater 300 at the end of the automatic inspection, and then closes the electric valve 16 provided at the end of the branch pipe.
4, it monitors whether the check valve closure detection output is obtained or not. When the check valve closure detection output is obtained, the timer 22 is started, and when the predetermined time set in the timer 22 has elapsed, a time-up output is generated. is obtained, the fire pump control panel 40
0 to stop the pump.
次に第２図の動作フロー図を参照して第１図の実施例構
成図の処理動作を説明する。Next, the processing operation of the embodiment configuration diagram of FIG. 1 will be explained with reference to the operation flow diagram of FIG. 2.
まず上位装置としての自動点検管理盤１００より自動点
検指令が与えられると、第２図の動作フローが開始され
、まずＳｌでローカル中継器３００に対し分岐管の管末
に設けられた電動弁１６の開放を指令する。このため電
動弁１６が開かれ、オリフィス３８で定まるスプリンク
ラ−ヘッド１個分の流量が分岐管３０に流れる。分岐管
３０に消火用水が流れると第５図に示すように流水検知
装置１４を構成す−る逆止弁８０の弁ディスク８２が開
き、圧力スイッチ９０に管内圧力が供給されることでス
イッチ接点が閉じ、逆止弁開放検出出力としての流水検
出出力が自動点検制御部１８に与えられる。First, when an automatic inspection command is given from the automatic inspection management board 100 as a host device, the operation flow shown in FIG. command to open. Therefore, the motor-operated valve 16 is opened, and the flow rate for one sprinkler head determined by the orifice 38 flows into the branch pipe 30. When fire extinguishing water flows into the branch pipe 30, the valve disc 82 of the check valve 80 that constitutes the flowing water detection device 14 opens as shown in FIG. is closed, and a flowing water detection output as a check valve open detection output is given to the automatic inspection control section 18.
この流水検知装置１４からの流水検出出力はＳ２で判別
され、Ｓ３に進んで消火ポンプ１０のポンプ起動、監視
を行なう。The flowing water detection output from the flowing water detection device 14 is determined in S2, and the process proceeds to S3, where the fire pump 10 is started and monitored.
続いてＳ４で消火ポンプ１０のモータ１２による運転状
態で各種のデータ計測処理を行なう。例えばモータ電圧
、モータ電流、ポンプ圧力、モータ回転数、圧力タンク
４６の圧力、分岐管の管内圧力等が計測され、各計測デ
ータにつき予め定めた所定範囲内にあるか判断される。Subsequently, in S4, various data measurement processes are performed while the motor 12 of the fire pump 10 is operating. For example, motor voltage, motor current, pump pressure, motor rotation speed, pressure in the pressure tank 46, pressure in the branch pipe, etc. are measured, and it is determined whether each measured data is within a predetermined range.
Ｓ４で一連の計測処理が終了すると、ローカル中継器３
００を介して電動弁１６を閉鎖させる。When a series of measurement processes are completed in S4, the local repeater 3
00 to close the electric valve 16.
この電動弁１６の閉鎖により流水検知装置１４を流れる
消火用水が無くなることから、第４図に示したように流
水検知装置１４における逆止弁８０の弁ディスク８２に
はその自重により弁シート８４に閉じ、圧力スイッチ９
０に対する管内圧力の供給が断たれ、圧力スイッチ９０
はオフ状態に戻る。この圧力スイッチ９０のオフにより
逆止弁８０の閉鎖検出出力が出される。Since the fire extinguishing water flowing through the flowing water detecting device 14 disappears due to the closure of this electric valve 16, the valve disc 82 of the check valve 80 in the flowing water detecting device 14 will not be able to contact the valve seat 84 due to its own weight, as shown in FIG. Close, pressure switch 9
The supply of pressure inside the pipe to 0 is cut off, and the pressure switch 90
returns to off state. When the pressure switch 90 is turned off, a closing detection output of the check valve 80 is output.
Ｓ５で電動弁１６を閉鎖した後、自動点検制御部１８は
Ｓ６で流水検知装置１４からの逆止弁の閉鎖検出出力の
有無を監視しており、逆止弁閉鎖検出出力が得られると
８７に進んでタイマ２２を起動する。タイマ２２には、
逆止弁８０が閉鎖状態となってから分岐管３０の二次側
の管内圧力が、内部に封じ込められた空気がポンプ起動
時に圧力を受けて容積変化を起こすバネ性が充分に抑え
られるような所定圧力に高められる時間設定が行なわれ
ている。After closing the electric valve 16 in S5, the automatic inspection control unit 18 monitors the presence or absence of the check valve closure detection output from the flowing water detection device 14 in S6, and when the check valve closure detection output is obtained, the automatic inspection control unit 18 performs 87 Step 2 starts the timer 22. In the timer 22,
After the check valve 80 is closed, the internal pressure on the secondary side of the branch pipe 30 is such that the springiness of the air sealed inside, which causes a volume change due to pressure when the pump is started, is sufficiently suppressed. There is a time setting for increasing the pressure to a predetermined pressure.
Ｓ８で流水検知装置１４の逆止弁閉鎖検出出力に基づい
て起動したタイマ２２の設定時間到達、即ちタイムアツ
プを監視しており、Ｓ８でタイマ２２のタイムアツプが
判別されると、その時初めて消火ポンプ制御盤４００に
対しポンプ停止を指令し、流水検知装置１４の二次側と
なる分岐管３０内の管内圧力を充分高めて、内部空気の
バネ性を抑えた状態で消火ポンプ１０が停止される。In S8, the timer 22 activated based on the non-return valve closure detection output of the water flow detection device 14 is monitored for reaching the set time, that is, the time-up, and when it is determined in S8 that the timer 22 has time-up, the fire pump is controlled for the first time. A command is given to the panel 400 to stop the pump, and the pressure inside the branch pipe 30 that is the secondary side of the flowing water detection device 14 is sufficiently increased, and the fire pump 10 is stopped while the springiness of the internal air is suppressed.
自動点検制御部１８は、特定の階の自動点検が終了する
と、所定の順番に従って次の階の点検処理に移行する。When the automatic inspection of a specific floor is completed, the automatic inspection control unit 18 moves to the inspection process of the next floor in a predetermined order.
このため同様にして消火ポンプ１０が起動されるが、こ
の時、既に点検済みの階の流水検知装置１４の二次側の
分岐管３０内の管内圧力は充分に高められた状態にあり
、内部に封じ込められた圧縮空気はポンプ起動による圧
力を受けても圧縮変形が抑えられた高圧状態におかれ、
従って他の階の自動点検のために消火ポンプを起動して
も封じ込め空気のバネ性による容積変動は殆ど起きず、
流水検知装置１４の逆止弁は確実に閉鎖状態におかれる
ため、自動点検を行なっている階以外の階の分岐管３０
に設けた流水検知装置から誤って流水検出出力が火災信
号として出されてしまう誤動作を確実に防止できる。For this reason, the fire pump 10 is started in the same way, but at this time, the internal pressure in the branch pipe 30 on the secondary side of the flowing water detection device 14 on the floor that has already been inspected is in a sufficiently increased state, The compressed air confined in the pump is placed in a high-pressure state where compression deformation is suppressed even when it receives pressure from pump activation.
Therefore, even if the fire pump is started for automatic inspection of other floors, there will be almost no volume fluctuation due to the springiness of the contained air.
Since the check valve of the flowing water detection device 14 is reliably closed, the branch pipe 30 on floors other than those on which automatic inspection is being performed
It is possible to reliably prevent malfunctions in which a running water detection output is erroneously issued as a fire signal from the running water detection device installed in the system.
尚、上記の実施例は管末試験装置３４の電動弁１６を遠
隔的に開いて行なう自動点検を例にとるものであったが
、管末試験装置に設けられた仕切弁３６を手動で開いて
同様に消火ポンプ１０の運転に伴う自動点検を行なった
場合にも手動による仕切弁３６の閉鎖に対し全く同様に
して流水検知装置１４の逆止弁閉鎖検出出力が得られて
から、タイマ２２で定まる一定時間後に消火ポンプ１０
を停止させ、分岐管二次側に封じ込められた空気を充分
に加圧してバネ性を失わせることで、他の階の自動点検
の際のポンプ運転による流水検知装置の誤動作を確実に
防止できる。In addition, although the above embodiment was an example of an automatic inspection in which the electric valve 16 of the tube end testing device 34 is opened remotely, it is also possible to manually open the gate valve 36 provided in the tube end testing device. Similarly, when an automatic inspection is performed during operation of the fire pump 10, the check valve closure detection output of the flowing water detection device 14 is obtained in exactly the same manner in response to manual closure of the gate valve 36, and then the timer 22 fire pump 10 after a certain period of time determined by
By stopping the air contained in the secondary side of the branch pipe and sufficiently pressurizing it to lose its springiness, it is possible to reliably prevent the water flow detection device from malfunctioning due to pump operation during automatic inspections on other floors. .
また、流水検知装置１４の圧力スイッチ９０のオフで逆
止弁８０の閉鎖検出出力が出され、閉鎖検出出力に基づ
いてタイマ２２で設定した時間経過後に消火ポンプ１０
が停止制御されるが、消火ポンプ１０を停止制御する際
に、流水検知装置１４の圧力スイッチ９０がオフ状態か
確認する動作制御を行なってもよい。スイッチの状態を
確認した際に圧力スイッチの流水検出出力が得られてい
る場合には、再度消火ポンプ１０を駆動する動作となる
。In addition, when the pressure switch 90 of the flowing water detection device 14 is turned off, a closure detection output of the check valve 80 is output, and after a time set by the timer 22 based on the closure detection output, the fire pump 10
However, when controlling the fire pump 10 to stop, operation control may be performed to check whether the pressure switch 90 of the flowing water detection device 14 is in the OFF state. When the state of the switch is checked and a flowing water detection output from the pressure switch is obtained, the fire pump 10 is driven again.
［発明の効果］
以上説明してきたように本発明の自動点検機能を有する
消火装置によれば、分岐管内に空気層が形成されていて
も、流水検知装置の逆止弁の閉鎖を検出してから所定時
間の間消火ポンプの運転を継続させ、管内圧力を充分高
めて空気を高圧状態に圧縮した後に消火ポンプを停止さ
せることとなり、このため次に消火ポンプを起動しても
、分岐管内の空気は高圧に圧縮された状態にあるために
、バネ性を殆どもっておらず、流水検知装置の逆止弁は
確実に閉鎖状態に保持され、ポンプ運転に伴う自動点検
を繰り返しても誤って流水検知装置から火災検出を示す
流水検出信号が出力されてしまうことを確実に防止でき
る。[Effects of the Invention] As explained above, according to the fire extinguishing system having an automatic inspection function of the present invention, even if an air layer is formed in the branch pipe, the closure of the check valve of the flowing water detection device can be detected. The fire pump continues to operate for a predetermined period of time, and after the pipe internal pressure is sufficiently increased and air is compressed to a high pressure state, the fire pump is stopped. Since air is compressed to a high pressure, it has almost no spring properties, and the check valve of the water flow detection device is reliably held in the closed state. It is possible to reliably prevent the detection device from outputting a running water detection signal indicating fire detection.
第１図は本発明の主要部を示した実施例構成図；第２図
は本発明の制御処理を示した動作フロー図；第３図は本
発明が適用される消火装置の配管設備構成を示した説明
図；
第４，５図は本発明で用いる流水検知装置の実施例構成
図；
第６図は本発明が適用される自動点検システムのシステ
ム構成図；
第７図は従来設備で問題となっている分岐管の空気の溜
り易い部分を示した説明図である。
１０：消火ポンプ
１２：モータ
１４：流水検知装置
１６：電動弁
１８：自動点検制御部
２０：停止制御部
２２：タイマ
２６：給水本管
３０：分岐管
３２；スプリンクラ−人ツド
３４：管末試験装置
８０：逆止弁
８２：弁ディスク（弁体）
８４：弁シート（弁座）
８６二圧力スイツチ加圧口
９０：圧力スイッチ
９４ニオ−トドリップ
１００：自動点検管理盤
２００；自動点検中継盤
３００；ローカル中継器
４００；消火ポンプ制御盤Fig. 1 is a configuration diagram of an embodiment showing the main parts of the present invention; Fig. 2 is an operation flow diagram showing the control processing of the present invention; Fig. 3 is a diagram showing the piping equipment configuration of a fire extinguishing system to which the present invention is applied. Explanatory diagrams shown; Figures 4 and 5 are configuration diagrams of an embodiment of the flowing water detection device used in the present invention; Figure 6 is a system configuration diagram of an automatic inspection system to which the present invention is applied; Figure 7 is a diagram showing problems with conventional equipment. It is an explanatory view showing a part of a branch pipe where air tends to accumulate. 10: Fire pump 12: Motor 14: Flowing water detection device 16: Electric valve 18: Automatic inspection control section 20: Stop control section 22: Timer 26: Main water supply pipe 30: Branch pipe 32; Sprinkler pipe 34: Pipe end test Device 80: Check valve 82: Valve disk (valve body) 84: Valve seat (valve seat) 86 Two-pressure switch pressurizing port 90: Pressure switch 94 Niorto drip 100: Automatic inspection management panel 200; Automatic inspection relay panel 300 ;Local repeater 400;Fire pump control panel
Claims (1)
プと； 該消火ポンプに接続され建物の垂直方向に立ち上げられ
た給水本管と； 該給水本管に分岐接続された分岐管と； 該分岐管に設けられたスプリンクラーヘッドと；前記分
岐管に設けられ、給水本管側の一次圧力とスプリンクラ
ーヘッド側の二次圧力に基づいて開閉する逆止弁及び該
逆止弁の開閉を検出する開閉検出手段を有する流水検知
装置と； 前記分岐管の管末に設けられ、弁の開放により前記スプ
リンクラーヘッドが火災で作動したと同じ状態を疑似的
に作り出す管末試験装置と；所定時間毎に前記管末試験
装置の弁を開放させ、該弁開放に伴なう前記流水検知装
置の逆止弁開放による開放検出手段の検出出力に基づい
て消火ポンプを起動させて自動点検を行い、該自動点検
を終了した際には前記管末試験装置の弁を閉鎖させた後
に消火ポンプを停止させる自動点検制御手段と； を備えた自動点検機能を有する消火装置に於いて、前記
自動点検制御手段に、自動点検を終了して前記管末試験
装置の弁を閉鎖させた後に、前記流水検知装置の開閉検
出手段による逆止弁の閉鎖検出出力の有無を監視し、該
閉鎖検出出力が得られた時には、予め定めた所定時間の
あいだ前記消火ポンプの運転を継続させた後に停止させ
る停止制御手段を設けたことを特徴とする自動点検機能
を有する消火装置。[Claims] 1. A fire pump that supplies pressurized fire extinguishing water by driving a motor; A water main connected to the fire pump and extending vertically to the building; A branch connection to the water main; a branch pipe; a sprinkler head provided in the branch pipe; a check valve provided in the branch pipe that opens and closes based on primary pressure on the water supply main side and secondary pressure on the sprinkler head side; and the check valve; a flowing water detection device having an opening/closing detection means for detecting the opening/closing of a valve; and a pipe end testing device installed at the end of the branch pipe, which creates a pseudo state similar to when the sprinkler head is activated in a fire by opening the valve. and; Automatically by opening the valve of the pipe terminal testing device at predetermined time intervals, and starting the fire extinguishing pump based on the detection output of the open detection means due to the opening of the check valve of the flowing water detection device accompanying the opening of the valve. In a fire extinguishing system having an automatic inspection function, the fire extinguishing system is equipped with an automatic inspection control means that performs an inspection, and when the automatic inspection is completed, closes the valve of the tube terminal testing device and then stops the fire pump; After the automatic inspection control means finishes the automatic inspection and closes the valve of the pipe end test device, the automatic inspection control means monitors whether or not the opening/closing detection means of the flowing water detection device outputs a check valve closure detection output, and determines whether the check valve is closed or not. A fire extinguishing system having an automatic inspection function, characterized in that, when a detection output is obtained, a stop control means is provided for continuing the operation of the fire extinguishing pump for a predetermined period of time and then stopping the operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22551389A JPH0698202B2 (en) | 1989-08-31 | 1989-08-31 | Fire extinguisher with automatic inspection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22551389A JPH0698202B2 (en) | 1989-08-31 | 1989-08-31 | Fire extinguisher with automatic inspection function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0386181A true JPH0386181A (en) | 1991-04-11 |
| JPH0698202B2 JPH0698202B2 (en) | 1994-12-07 |
Family
ID=16830495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22551389A Expired - Lifetime JPH0698202B2 (en) | 1989-08-31 | 1989-08-31 | Fire extinguisher with automatic inspection function |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0698202B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012040275A (en) * | 2010-08-23 | 2012-03-01 | Is Sprinkler Kk | Automatic alarm valve |
| CN104540554A (en) * | 2012-06-25 | 2015-04-22 | 马里奥夫有限公司 | Preaction sprinkler system operation booster |
-
1989
- 1989-08-31 JP JP22551389A patent/JPH0698202B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012040275A (en) * | 2010-08-23 | 2012-03-01 | Is Sprinkler Kk | Automatic alarm valve |
| CN104540554A (en) * | 2012-06-25 | 2015-04-22 | 马里奥夫有限公司 | Preaction sprinkler system operation booster |
| US10709918B2 (en) | 2012-06-25 | 2020-07-14 | Marioff Corporation Oy | Preaction sprinkler system operation booster |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0698202B2 (en) | 1994-12-07 |
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