JPH0449983A - Automatic air-tightness inspecting device for main piping of fire fighting installation - Google Patents
Automatic air-tightness inspecting device for main piping of fire fighting installationInfo
- Publication number
- JPH0449983A JPH0449983A JP15733190A JP15733190A JPH0449983A JP H0449983 A JPH0449983 A JP H0449983A JP 15733190 A JP15733190 A JP 15733190A JP 15733190 A JP15733190 A JP 15733190A JP H0449983 A JPH0449983 A JP H0449983A
- Authority
- JP
- Japan
- Prior art keywords
- main piping
- airtightness
- fire extinguishing
- solenoid valve
- electromagnetic valve
- 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
Landscapes
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
０産業上の利用分野
本発明は、消火剤として、二酸化炭素、ハロゲン化物等
の不活性ガスを使用する消火設備の主配管の気密点検装
置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an airtightness inspection device for main piping of fire extinguishing equipment that uses inert gas such as carbon dioxide or halides as a fire extinguishing agent.
Ｏ従来技術の間層点
消火Ｂｆｌａは、日常的には使用されず、火災が発生し
たときにはじめて使用されるものであり、かつ何時火災
が発生してもその消火機能を確実に発揮すべきものであ
り、従来から、その消火機能を維持管理すべく、有資格
者等による定期的な点検が実施されている。消火剤とし
て、二酸化炭素、ハロゲン化物等の不活性ガスを使用す
る消火設備の主配管についても同様で、その主なる機能
である気密機能が維持されていないと、火災時に消火設
備が起動して消火剤を消火区画に放出する際に、当該主
配管から消火剤の漏洩が生じて、消火区画に放出される
消火剤量が不足し、消火効果を減するのは勿論、もし主
配管が設置されている場所に、人がいる場合には、酸欠
等による人身事故の可能性もある。O The interlayer point fire extinguishing Bfla of the prior art is not used on a daily basis, but is used only when a fire occurs, and must reliably perform its extinguishing function no matter when a fire occurs. Conventionally, regular inspections by qualified personnel have been carried out to maintain and manage the fire extinguishing function. The same applies to the main piping of fire extinguishing equipment that uses inert gases such as carbon dioxide and halides as extinguishing agents.If the main piping of fire extinguishing equipment is not maintained, which is its main function of airtightness, the fire extinguishing equipment may start up in the event of a fire. When extinguishing agent is released into the fire extinguishing compartment, the extinguishing agent may leak from the main pipe, resulting in an insufficient amount of extinguishing agent being released into the extinguishing compartment, reducing the fire extinguishing effect, and if the main piping is installed If there are people in the area, there is a possibility of personal injury due to lack of oxygen.
ところで水系消火設！（例えばスプリンクラ−股ｔａ＞
の主配管のように常時主配管内が水で満たされている場
合には、気密性能が維持されているかどうかの判定は、
比較的容易であるが、二酸化炭素、ハロゲン化物のガス
系の消火設備においては、常時は、消火剤が貯蔵容器内
に貯蔵されており、主配管内は空の状態であるため、気
密性能のｌ［ｇは難しく、常時、定期的にあるいは必要
に応じて、次の方法でｆ［認が行なわれている。By the way, water-based fire extinguishing system! (For example, sprinkler crotch ta>
When the main piping is constantly filled with water, such as in the main piping of
Although this is relatively easy, in carbon dioxide and halide gas-based fire extinguishing equipment, the extinguishing agent is always stored in a storage container and the main piping is empty, so airtightness is not guaranteed. Since l[g is difficult, f[evaluation is performed constantly, periodically, or as needed, using the following method.
消火剤として、二酸化炭素、ハロゲン化物を使用する従
来の気密点検の装置は２、第６図の公知例の消火設備に
おいて、定期的に、その都度、主配管７の接続部６と容
器弁２との間に取り付けられている連結管５を取り外し
、第７図に示すように、加圧用圧力Ｈ３８と主配管７を
配管３９で連結し、配管３９の途中に、圧力監視用の圧
力計４２と、気密点検後に加圧ガスを排出する為の排気
管４０を分岐させ、排気管４０の途中には、閉止弁４１
を接続して構成している。A conventional airtightness inspection device that uses carbon dioxide or a halide as a fire extinguishing agent is 2. In the known fire extinguishing equipment shown in FIG. As shown in FIG. 7, connect the pressurizing pressure H38 and the main pipe 7 with a pipe 39, and install a pressure gauge 42 for pressure monitoring in the middle of the pipe 39. After checking the airtightness, the exhaust pipe 40 for discharging the pressurized gas is branched, and a shutoff valve 41 is installed in the middle of the exhaust pipe 40.
are connected and configured.
気密点検は、まず加圧用圧力源３８の容器弁４３を開放
し、圧力計４２の指示値を確認しながら、主配管７を加
圧用ガスで加圧する。圧力計４２の指示値が気密点検圧
力値（例えば１０ ｋｇｆ／ｃｍ” ）に達したとき容
器弁４３を閉鎖する。この時点の圧力計４２の指示値を
正確に読取り、さらに一定時間（例えば１０分）後の圧
力計４２の指示値を銃取り両者を比較する。このとき、
両者の圧力値に差がなければ主配管７に漏洩なしと判定
し、両者の圧力値に差があれば主配管７に漏洩有りと判
定する。In the airtightness check, first, the container valve 43 of the pressurizing pressure source 38 is opened, and the main pipe 7 is pressurized with pressurizing gas while checking the indicated value of the pressure gauge 42. When the indicated value of the pressure gauge 42 reaches the airtightness check pressure value (for example, 10 kgf/cm"), the container valve 43 is closed. The indicated value of the pressure gauge 42 at this point is accurately read, and then the pressure is kept for a certain period of time (for example, 10 kgf/cm"). Compare the indicated value of the pressure gauge 42 after 1 minute) on both gun handles.At this time,
If there is no difference in the pressure values between the two, it is determined that there is no leakage in the main pipe 7, and if there is a difference in the pressure values between the two, it is determined that there is a leak in the main pipe 7.
気密点検が許った後、閉止弁４１を開放し、加圧用ガス
を大気的に排出し、配管３９、排気管４０、閉止弁４１
、圧力計４２及び加圧用圧力ｊ！３８を取り外し、連結
管５を主配管７と容器弁２の管に接続する。After the airtightness inspection is approved, the shutoff valve 41 is opened, the pressurized gas is discharged to the atmosphere, and the piping 39, exhaust pipe 40, and shutoff valve 41 are opened.
, pressure gauge 42 and pressurizing pressure j! 38 and connect the connecting pipe 5 to the main pipe 7 and the container valve 2 pipe.
なお、第６図および第７図において、ｌは二酸化炭素、
ハロゲン化物等の消火剤が充填された貯蔵容器、２は容
器弁、３は容器弁開放装置、４は起動ガス配管、８は選
択弁、９は配管、１０は噴射ヘッド、１１は起動用ガス
容器、１２は起動用ガス容器弁、１３は起動用ガス容器
弁開放装置、１４は選択弁開放装置、１５は不運弁、１
６は消火！２ｍ起動装置、１７は消火ａｍ制御盤、１８
゜１９は電線、Ｉ、ＩＩは消火区画である。In addition, in FIG. 6 and FIG. 7, l is carbon dioxide,
A storage container filled with a fire extinguishing agent such as a halide, 2 is a container valve, 3 is a container valve opening device, 4 is a starting gas pipe, 8 is a selection valve, 9 is a pipe, 10 is an injection head, 11 is a starting gas container, 12 is a starting gas container valve, 13 is a starting gas container valve opening device, 14 is a selective valve opening device, 15 is an unlucky valve, 1
6 is extinguishing! 2m starting device, 17 is fire extinguishing am control panel, 18
゜19 is the electric wire, I and II are the fire extinguishing compartments.
０従来技術の問題点
従来、実施されている主配管７の気密点検の装置とその
手順は以上のようなものであるが、上述の方法では、作
業に手間がかかり、しかも点検に長時間髪するため、人
的コストが高くなる。また、作業中は消火設備の一部つ
まり連結管５を取り外すことになるので、もし万一点検
中に火災が発生した場合には、消火設備を直ちに起動す
ることができず、消火活動に重大な支障をきたす問題点
がある。0 Problems with the Prior Art Conventionally, the devices and procedures for checking the airtightness of the main piping 7 are as described above, but the above-mentioned method is time-consuming and requires a long period of time for inspection. This increases human costs. Additionally, because part of the fire extinguishing equipment, that is, the connecting pipe 5, will be removed during the work, if a fire breaks out during the inspection, the fire extinguishing equipment cannot be started immediately, which could be critical to firefighting efforts. There are some problems that can cause problems.
更に、気密点検の度に連結管の取り付け、取り外しを行
なうため、その接続部の気密性能は確認されないばかり
か、取り付は忘れがあった場合は、消火性能に重大な支
障をきたす問題点がある。Furthermore, since connecting pipes are installed and removed every time an airtight inspection is performed, not only is the airtight performance of the connections not confirmed, but if the connection is forgotten, there is a problem that will seriously impede fire extinguishing performance. be.
Ｏ問題点を解決するための手段
本願第１発明は、加圧用圧力源を減圧弁及び加圧用電磁
弁を介して主配管に接続し、当該主配管に、一端が大気
に開放されている排気用電磁弁と圧力センサーを設け、
一定周期毎に又は、任意の時期に、制御装置からの信号
によって、電磁弁の開閉を制御するとともに、前記制御
装置は、電磁弁制御信号の発生の前後での前記加圧用電
磁弁および前記排気用電磁弁の開閉に伴う主配管内のガ
ス圧力の変化の有無を検出して気密点検を行なう気密点
検機能を有することにより消火設備の主配管の気密点検
を自動的に行なうようにする。Means for Solving Problem O The first invention of the present application connects a pressurizing pressure source to a main pipe via a pressure reducing valve and a pressurizing solenoid valve, and connects an exhaust gas to the main pipe with one end open to the atmosphere. Equipped with a solenoid valve and pressure sensor for
The opening and closing of the solenoid valve is controlled by signals from a control device at regular intervals or at arbitrary times, and the control device controls the pressurizing solenoid valve and the exhaust gas before and after the generation of the solenoid valve control signal. By having an airtightness inspection function that performs an airtightness check by detecting the presence or absence of a change in gas pressure in the main piping due to the opening and closing of a solenoid valve, the airtightness check of the main piping of the fire extinguishing equipment can be automatically performed.
本願第２発明は、本願第１発明における前記制御装置に
、前記気密点検機能の作動中においても消火設備の起動
信号の入力により気密点検待機状態に自動的に復帰させ
るための気密点検中止機能を付加することにより、自動
気密点検中であっても火災の発生により消火設備を起動
する必要が生じた場合には、自動的に気密点検を中止し
て、消火設備を起動することができるようする。A second invention of the present application provides the control device in the first invention with an airtightness inspection canceling function for automatically returning to an airtightness inspection standby state by inputting a start signal of fire extinguishing equipment even when the airtightness inspection function is in operation. By adding this, if it becomes necessary to start the fire extinguishing equipment due to a fire even during automatic airtightness inspection, the airtightness inspection can be automatically stopped and the fire extinguishing equipment can be started. .
Ｏ実施例 以下図面に示す実施例にもとづいて本発明を説明する。O Example The present invention will be described below based on embodiments shown in the drawings.
第１図を参照して、１．１・・・は二酸化炭素、ハロゲ
ン化物等の消火剤が充填された貯蔵容器、２゜２・・・
は各々の貯蔵容！！１．１・・・の頂部に取付けられた
容器弁、３は容器弁開放装置、４は起動ガス配管であり
、容器弁２．２・・・の出口は、直結管５゜５・・・及
び連結管接続部６．６・・・を経て主配管７に接続し、
この主配管７からは複数の消火対象装置１、ＴＩ・・・
の各々に至る選択弁８−Ｉ、８−１１・・・を分岐する
６選択弁８−Ｉ、８−１１・・・からの配管９−Ｉ、９
−１１・・−は、渭火区１ｉＩ、■・・・に至り、噴射
ヘッド１０．１０・・・を室内に向って開口する。Referring to Fig. 1, 1.1... is a storage container filled with extinguishing agents such as carbon dioxide and halides, 2゜2...
is each storage capacity! ! 1.1... is a container valve attached to the top, 3 is a container valve opening device, 4 is a starting gas pipe, and the outlet of container valve 2.2... is a direct connection pipe 5°5... and connected to the main pipe 7 via the connecting pipe connection part 6.6...
From this main pipe 7, a plurality of extinguishing target devices 1, TI...
Piping 9-I, 9 from the 6 selection valves 8-I, 8-11... which branch the selection valves 8-I, 8-11... to each of the selection valves 8-I, 8-11...
-11...- reaches the western fire zone 1iI, ■..., and opens the injection heads 10, 10... toward the room.
第１図において、１１．１１・・・は起動用ガス容器、
１２は起動用ガス容器弁、１３は起動用ガス容器弁開放
装置、１４は選択弁開放装置、１５は不運弁、１６は消
火設備起動装置、１７は消火設備制御盤、１８．１９は
電線である。In Fig. 1, 11.11... is a starting gas container,
12 is a starting gas container valve, 13 is a starting gas container valve opening device, 14 is a selective valve opening device, 15 is an unlucky valve, 16 is a fire extinguishing equipment starting device, 17 is a fire extinguishing equipment control panel, 18.19 is an electric wire. be.
さらに、加圧用圧力Ｈ２０が、容器弁２９から、配管２
５、減圧弁２１、配管２６、加圧電磁弁２２、配管２３
を介して、主配管７に接続され、配管２５は、途中で分
岐し加圧用圧力源２０の圧力を監視するための圧力セン
サー２７を設けている。Further, the pressurizing pressure H20 is applied from the container valve 29 to the pipe 2
5, pressure reducing valve 21, piping 26, pressurizing solenoid valve 22, piping 23
The piping 25 is connected to the main piping 7 through the piping 25, and the piping 25 is provided with a pressure sensor 27 that branches off in the middle and monitors the pressure of the pressurizing pressure source 20.
また主配管７から配管３９．４０を分岐し各々の先に排
気用電磁弁２４及び主配管内圧力監視用の圧力センサー
２８を設けている。加圧用電磁弁２２、排気用電磁弁２
４及び圧力センサー２７．２８は電線３７で気密点検制
御盤３０に接続され、気密点検制御盤３０は、電線３８
で、消火設備制御盤１７に接続されている。気密点検制
御盤３゜の表面には、第２図を参照して、電源表示灯３
１、気密点検実施中を示す表示灯３２、主配管の気密異
常を示す表示灯３３、加圧用圧力源の圧力低下を示す表
示灯３４、気密点検の手動起動スイッチ３５及びプリン
タ３６が設けられている。また、気密点検制御盤３０内
には、電磁弁制御信号の発生の前後での前記加圧用電磁
弁および前記排気用電磁弁の開閉に伴う主配管内のガス
圧力の変化の有無を検出して気密点検を行なうべく、第
４図のフロー図の気密点検機能３０Ａと、前記気密点検
機能の作動中においても消火設備の起動信号の入力によ
り気密点検待機状態に自動的に復帰させるための、第５
図の気密点検中止機能３０Ｂとを有する制御装置（マイ
コン）３０°が内装され、第３図に示すごとく、気密点
検手動起動スイッチ３５からの起動信号、消火設備制御
１１１７がらの起動信号、圧力センサー２７．２８がら
の検出信号等を入力し、電磁弁２２．２４等への制御信
号を出力する。Further, pipes 39 and 40 are branched from the main pipe 7, and an exhaust electromagnetic valve 24 and a pressure sensor 28 for monitoring the pressure inside the main pipe are provided at each end. Pressurizing solenoid valve 22, exhaust solenoid valve 2
4 and the pressure sensors 27 and 28 are connected to the airtightness inspection control panel 30 by an electric wire 37, and the airtightness inspection control panel 30 is connected to the airtightness inspection control panel 30 by the electric wire 38.
and is connected to the fire extinguishing equipment control panel 17. On the surface of the airtightness inspection control panel 3°, see the power indicator light 3, as shown in Figure 2.
1. An indicator light 32 indicating that an airtightness check is in progress, an indicator light 33 indicating an airtightness abnormality in the main piping, an indicator light 34 indicating a pressure drop in the pressurizing pressure source, a manual start switch 35 for the airtightness check, and a printer 36 are provided. There is. Furthermore, the airtightness inspection control panel 30 includes a device that detects the presence or absence of a change in gas pressure in the main piping due to the opening and closing of the pressurizing solenoid valve and the exhaust solenoid valve before and after the solenoid valve control signal is generated. In order to perform the airtightness inspection, the airtightness inspection function 30A shown in the flowchart of FIG. 5
A control device (microcomputer) 30° having an airtightness check cancellation function 30B as shown in the figure is installed, and as shown in FIG. Detection signals from 27 and 28 are input, and control signals to solenoid valves 22 and 24 are output.
本発明は、以上のように構成され、加圧用電磁弁２２、
排気用電磁弁２４は常時閉鎖され、加圧用圧力ｊ［２０
の容器弁２９は、常時開放されているので、圧力ガスは
、減圧弁２１で気密点検圧力（本実施例の場合７ｋｇｆ
／ａｍ” ）に減圧され、加圧用電磁弁２２で閉鎖さ
れている。The present invention is configured as described above, and includes a pressurizing solenoid valve 22,
The exhaust solenoid valve 24 is always closed, and the pressurizing pressure j[20
Since the container valve 29 is always open, the pressure gas is supplied to the pressure reducing valve 21 at the airtightness check pressure (7 kgf in this example).
/am'') and is closed by a pressurizing solenoid valve 22.
本発明の気密点検装置は、常時、この状態で待機してお
り、気密点検制御盤３０から点検開始の信号が送られて
はじめて気密点検を実施する。The airtightness inspection device of the present invention is always on standby in this state, and performs an airtightness inspection only when a signal to start inspection is sent from the airtightness inspection control panel 30.
以下、気密点検の手順を第４図に示す気密点検フローに
従って説明する。Hereinafter, the procedure of the airtightness inspection will be explained according to the airtightness inspection flow shown in FIG.
気密点検手動起動スイッチ３５をＯＮにすると、気密点
検が開始される。まず表示灯３２が点灯し加圧用電磁弁
２２が開放され、減圧弁２１で７ｋｇｆ ／ ｃｓ ”
に減圧された加圧用ガスで、主配管７及び配管２３．３
９．４０を加圧する（フロー■）。When the airtightness inspection manual start switch 35 is turned on, the airtightness inspection is started. First, the indicator light 32 lights up, the pressurizing solenoid valve 22 is opened, and the pressure reducing valve 21 produces 7 kgf/cs.
Main piping 7 and piping 23.3 with pressurizing gas reduced in pressure to
9. Pressurize to 40 (flow ■).
主配管内の圧力が上昇し、圧力センサー２８が検出する
圧力Ｐ Ｔ ｏが７ｋｇｆ ／ｅｌｌ”になったとき、
電磁弁２２を閉鎖する（フロー■〜■）、主配管内の圧
力が安定すると予想される時間１１分（本実施例の場合
１分）後、主配管内の圧力値ＰＴＩを読取り一時記憶す
る（フロー■）。さらに１２分後（本実施例の場合１０
分後）再度主配管内の圧力値ＰＴ２を読取る（フロー■
）、ここで圧力値ＰＴＩとＰＴ２を比較し、ＰＴＩ ＝
ＰＴ２が成立するとき、プリンタ３６に「異常なし」を
出力し、ＰＴＩ ＝ＰＴ２が成立しないとき主配管７に
漏洩があると判定し、プリンタ３６に「配管内に漏れあ
り」を出力するとともに異常表示灯３３を点灯し、移報
信号を出力する（フロー〇〜■）。When the pressure inside the main pipe increases and the pressure P To detected by the pressure sensor 28 reaches 7 kgf/ell,
The solenoid valve 22 is closed (flows ■ to ■), and after 11 minutes (1 minute in this example), when the pressure in the main pipe is expected to stabilize, the pressure value PTI in the main pipe is read and temporarily stored. (Flow ■). After another 12 minutes (10 minutes in this example)
minutes later) Read the pressure value PT2 in the main pipe again (flow ■
), here the pressure values PTI and PT2 are compared, and PTI =
When PT2 is established, "No abnormality" is output to the printer 36, and when PTI = PT2 is not established, it is determined that there is a leak in the main piping 7, and "There is a leak in the pipe" is output to the printer 36, and an abnormality is output. The indicator light 33 is turned on and a transfer signal is output (flow ○~■).
続いて電磁弁２４を開放し、主配管内の加圧用ガスを大
気に排出する（フロー＠ｌ）。このあと圧力センサー２
８が検出する圧力ＰＴ３が“０”ｋｇｆ／ ａｍ ”に
なったとき、加圧用ガスがすべて排出されたとみなし電
磁弁２４を閉鎖し、表示灯３２を消灯する（フロー■〜
＠）０次に気密点検の周期（本実施例では６ケ月）があ
らかじめ設定されたタイマーが作動する（フロー■）。Subsequently, the solenoid valve 24 is opened, and the pressurizing gas in the main pipe is discharged to the atmosphere (flow @l). After this, pressure sensor 2
When the pressure PT3 detected by 8 becomes "0" kgf/am, it is assumed that all the pressurizing gas has been discharged, the solenoid valve 24 is closed, and the indicator light 32 is turned off (flow
@) Next, a timer with a preset airtightness inspection cycle (6 months in this embodiment) is activated (flow ■).
タイマーがタイムアツプ（フロー＠）すると、フロー■
に戻り上記フローを繰返す。このフローではフロー［有
］のタイマー作動中、つまり、次の気密点検までの待機
中であっても、気密点検手動起動スイッチ３５がＯＮに
されれば、直ちにタイマーを解除し、フロー■から開始
するように構成されている。従って、気密点検手動スイ
ッチ３５がＯＮにされると、１回目の気密点検（フロー
■〜＠）を実施し、タイマー■が作動し、次回気密点検
の待機状態となる。When the timer times up (flow @), the flow
Return to and repeat the above flow. In this flow, even if the timer for flow [Yes] is running, that is, waiting until the next airtightness inspection, if the airtightness inspection manual start switch 35 is turned on, the timer is immediately canceled and the process starts from flow ■. is configured to do so. Therefore, when the airtightness inspection manual switch 35 is turned on, the first airtightness inspection (flow ① to @) is carried out, the timer ① is activated, and the system is in a standby state for the next airtightness inspection.
なお、上述の実施例における移報信号は、漏れがある場
合に別の場所（例えば、防災センター）に異常を知らせ
る為の無電圧あるいは有電圧信号である。Note that the transfer signal in the above-described embodiment is a non-voltage or voltage-containing signal for notifying another location (for example, a disaster prevention center) of an abnormality when there is a leak.
次に本願第２発明の気密点検中止の機能について、説明
する。Next, the function of canceling the airtightness check according to the second invention of the present application will be explained.
もし気密点検を実施している最中に、火災が発生し、消
火設備起動！ｉ置工６が掃作されると消火ｌｌ２ｍが作
動し、貯蔵容器１，１・・・の消火剤が容器弁２，２・
・・から連結管５．５・・・を経て主配管７に充満する
。このとき、例えば、フローが［相］〜＠の状態にある
ときは、排気用電磁弁２４が開放されているため、消火
剤が主配管７から大気に放出され、消火性能を減じると
ともに排気用電磁弁２４の近傍に人がいる場合には、窒
息等、人命の危険をも生じる。従って、本願第２発明で
は、消火設備の起動信号を消火１２１１制御盤１７に入
力すると、起動信号が電線３８を通じて気密点検制御盤
３０内の制御装置（マイコン）３０′に送られ、直ちに
気密点検を中止し、気密点検フローの遭行状慧に応じて
、第５図に示す気密点検中止フローに従って、気密点検
開始前の状態、つまり、気密点検手動起動スイッチ３５
がＯＮにされる前の状態に復帰されるように構成してい
る。以下、第４図及び第５図を参照して説明する。If a fire breaks out during the airtightness inspection, fire extinguishing equipment should be activated! i When the construction work 6 is swept, the fire extinguisher 112m is activated, and the extinguishing agent in the storage containers 1, 1... is discharged from the container valves 2, 2...
. . . through connecting pipes 5, 5, . . . and fills the main pipe 7. At this time, for example, when the flow is in the state of [phase] to If there are people in the vicinity of the solenoid valve 24, suffocation and other dangers may occur. Therefore, in the second invention of the present application, when the activation signal for the fire extinguishing equipment is input to the fire extinguisher 1211 control panel 17, the activation signal is sent to the control device (microcomputer) 30' in the airtightness inspection control panel 30 through the electric wire 38, and the airtightness inspection is immediately performed. and then, depending on the situation of the airtightness inspection flow, follow the airtightness inspection cancellation flow shown in FIG.
The configuration is such that the state is restored to the state before it was turned on. This will be explained below with reference to FIGS. 4 and 5.
気密点検が開始されその進行が第４図の気密点検フロー
のどの状態にあっても第５図の気密点検中止フローのス
テップＡに移るよう構成されている。ステップＢでは、
電磁弁２４が開放しているかどうかの判定回路で、開放
していればステップＣに進み、電磁弁２４を閉鎖し、ス
テップＤに進む、また開放していなければ、ステップＤ
に進む。The airtightness inspection is started, and no matter what state the airtightness inspection is in in the airtightness inspection flow shown in FIG. 4, the process moves to step A of the airtightness inspection stop flow shown in FIG. 5. In step B,
This is a circuit for determining whether or not the solenoid valve 24 is open. If it is open, proceed to step C, close the solenoid valve 24, and proceed to step D. If it is not open, proceed to step D.
Proceed to.
ステップＤは、電磁弁２２が開放しているかどうかの判
定回路で、電磁弁２２が開放していれば、ステップＥに
進み、電磁弁２２を閉鎖し、ステップＦに進む、開放し
ていなければ、ステップＦに進む、ステップＦでフロー
は終了し、・第４図の点検フロー開始前の状態に戻る。Step D is a circuit for determining whether or not the solenoid valve 22 is open. If the solenoid valve 22 is open, proceed to step E, close the solenoid valve 22, and proceed to step F. If not, proceed to step F. , proceed to step F, the flow ends at step F, and return to the state before the start of the inspection flow in FIG.
なお、第２図において、表示灯３４は圧力センサー２７
で監視される加圧用ガスの圧力が設定値以下（本実施例
の場合３Ｑｋｇｆ７ｃｍ”以下）に低下したとき、その
圧力異常を知らせるものである。In addition, in FIG. 2, the indicator light 34 is the pressure sensor 27.
When the pressure of the pressurizing gas monitored by the pressure decreases below a set value (in the case of this embodiment, below 3Qkgf7cm), an abnormality in the pressure is notified.
Ｏ発明の効果
本願第１発明は、加圧用圧力源を、減圧弁Ｂ及び加圧用
電磁弁を介して主配管に接続し、当該主配管に、一端が
大気に開放されている排気用電磁弁と圧力センサーを設
け、一定周期毎に、又は任意の時期に、制御装置からの
電磁弁制御信号によって電磁弁の開閉を制御するととも
に、前記制御装置に内装したマイコンが電磁弁制御信号
の発生の前後での主配管内のガス圧力の変化の有無を検
出して気密点検を行なう気密点検機能を有することによ
り、消火設備主配管の気密点検を、一定周期毎に、又は
任意の時期に、自動的に行なうことができる。O Effects of the Invention The first invention of the present application is an exhaust solenoid valve in which a pressurizing pressure source is connected to a main pipe via a pressure reducing valve B and a pressurizing solenoid valve, and one end of the main pipe is open to the atmosphere. A pressure sensor is provided, and the opening and closing of the solenoid valve is controlled by a solenoid valve control signal from a control device at regular intervals or at any arbitrary time, and a microcomputer installed in the control device controls the generation of the solenoid valve control signal. By having an airtightness inspection function that detects whether there is a change in gas pressure in the main piping before or after and performs an airtightness check, it is possible to automatically check the airtightness of the main piping of fire extinguishing equipment at regular intervals or at any time. It can be done.
本願第２発明は、本願第１発明を実施して気密点検機能
の作動中においても起動信号の入力で前記制御装置は気
密点検中止機能が作動することにより、気密点検を実施
している最中であっても、火災の発生により、消火設備
を起動する必要が生じた場合には、自動的に気密点検を
中止して気密点検装置を元の待機状態に復帰させ、消火
１１２ｆａを起動させ正常に動作させることができる。The second invention of the present application is such that even when the first invention of the present application is implemented and the airtightness inspection function is in operation, the control device activates the airtightness inspection canceling function upon input of the activation signal, thereby causing the control device to continue operating the airtightness inspection while the airtightness inspection is being performed. However, if it becomes necessary to start the fire extinguishing equipment due to the occurrence of a fire, the air tightness inspection will be automatically canceled, the air tightness inspection equipment will return to its original standby state, and the fire extinguishing 112fa will be activated to ensure normal operation. can be operated.
第１図は、本発明の実施例を示す消火設備主配管の自動
気密点検装置の回路図である。第２図は制御盤の正面図
、第３図は制御装置への各種信号の説明図である。
第４図は制御装置内のマイコンの気密点検機能のフロー
図、第５図は同じくマイコンの気密点検中止機能のフロ
ー図である。
第６図は、公知の消火設備の回路図、第７図は気密点検
時の第６図同様の回路図である。
７・・・・・・・・・主配管
２０・・・・・・・・・加圧用圧力源
２１・・・・・・・・・減圧弁
２２・・・・・・・・・電磁弁（加圧用）２４・・・・
・・・・・電磁弁（排気用）２７・・・・・・・・・圧
力センサー
２８・・・・・・・・・圧力センサー
３０′・・・・・・・・・制御装置
３０Ａ・・・・・・・・・気密点検機能３０Ｂ・・・・
・・・・・気密点検中止機能比−人
高圧瓦斯工業株式会社FIG. 1 is a circuit diagram of an automatic airtightness inspection device for main piping of a fire extinguishing equipment showing an embodiment of the present invention. FIG. 2 is a front view of the control panel, and FIG. 3 is an explanatory diagram of various signals sent to the control device. FIG. 4 is a flowchart of the airtightness inspection function of the microcomputer in the control device, and FIG. 5 is a flowchart of the airtightness inspection cancel function of the microcomputer. FIG. 6 is a circuit diagram of a known fire extinguishing equipment, and FIG. 7 is a circuit diagram similar to FIG. 6 at the time of airtightness inspection. 7... Main piping 20... Pressure source for pressurization 21... Pressure reducing valve 22... Solenoid valve (For pressurization) 24...
...... Solenoid valve (for exhaust) 27 ...... Pressure sensor 28 ...... Pressure sensor 30' ...... Control device 30A. ......Airtightness inspection function 30B...
・・・・・・Airtightness inspection cancellation function ratio - Jin Koatsu Gas Kogyo Co., Ltd.
Claims (2)
活性ガスを使用する消火設備において、加圧用圧力源を
、減圧弁及び加圧用電磁弁を介して、主配管に接続し、 上記主配管に、一端が大気に開放されている排気用電磁
弁と圧力センサーを設け、 前記加圧用電磁弁および前記排気用電磁弁の開閉を制御
するための電磁弁制御信号を一定周期毎に又は任意の時
期に出力するための制御装置を設けるとともに、 前記制御装置は、電磁弁制御信号の発生の前後での前記
加圧用電磁弁および前記排気用電磁弁の開閉に伴う主配
管内のガス圧力の変化の有無を検出して気密点検を行な
う気密点検機能を有することにより、 消火設備主配管の気密点検を自動的に行なうようにした
ことを特徴とする消火設備主配管の自動気密点検装置。(1) In fire extinguishing equipment that uses inert gas such as carbon dioxide or halides as a fire extinguishing agent, a pressure source for pressurization is connected to the main piping via a pressure reducing valve and a pressurizing solenoid valve, and the main piping is is provided with an exhaust electromagnetic valve and a pressure sensor, one end of which is open to the atmosphere, and a solenoid valve control signal for controlling opening and closing of the pressurizing electromagnetic valve and the exhaust electromagnetic valve is transmitted at regular intervals or at an arbitrary timing. A control device is provided to control the change in gas pressure in the main piping due to the opening and closing of the pressurizing solenoid valve and the exhaust solenoid valve before and after generation of the solenoid valve control signal. 1. An automatic airtightness inspection device for fire extinguishing equipment main piping, characterized in that it has an airtightness inspection function that detects the presence or absence of and performs an airtightness check, thereby automatically performing an airtightness inspection of the fire extinguishing equipment main piping.
活性ガスを使用する消火設備において、加圧用圧力源を
、減圧弁及び加圧用電磁弁を介して、主配管に接続し、 上記主配管に、一端が大気に開放されている排気用電磁
弁と圧力センサーを設け、 前記加圧用電磁弁および前記排気用電磁弁の開閉を制御
するための電磁弁制御信号を一定周期毎に又は任意の時
期に出力するための制御装置を設けるとともに、 前記制御装置は、電磁弁制御信号の発生の前後での前記
加圧用電磁弁および前記排気用電磁弁の開閉に伴う主配
管内のガス圧力の変化の有無を検出して気密点検を行な
う気密点検機能、および前記気密点検機能の作動中にお
いても消火設備の起動信号の入力により気密点検待機状
態に自動的に復帰させるための気密点検中止機能を有し
、自動気密点検中であっても、火災の発生により消火設
備を起動する必要が生じた場合には、自動的に、気密点
検を中止して、消火設備を起動することができるように
したことを特徴とする消火設備主配管の自動気密点検装
置。(2) In fire extinguishing equipment that uses inert gas such as carbon dioxide or halides as a fire extinguishing agent, a pressure source for pressurization is connected to the main piping via a pressure reducing valve and a pressurizing solenoid valve, and the main piping is is provided with an exhaust electromagnetic valve and a pressure sensor, one end of which is open to the atmosphere, and a solenoid valve control signal for controlling opening and closing of the pressurizing electromagnetic valve and the exhaust electromagnetic valve is transmitted at regular intervals or at an arbitrary timing. A control device is provided to control the change in gas pressure in the main piping due to the opening and closing of the pressurizing solenoid valve and the exhaust solenoid valve before and after generation of the solenoid valve control signal. It has an airtightness inspection function that detects the presence or absence of airtightness and performs an airtightness check, and an airtightness inspection cancellation function that automatically returns to the airtightness inspection standby state by inputting a start signal for the fire extinguishing equipment even while the airtightness inspection function is in operation. However, even during an automatic airtightness check, if it becomes necessary to start the fire extinguishing equipment due to a fire outbreak, the airtightness check can be automatically canceled and the fire extinguishing equipment can be started. An automatic airtightness inspection device for main piping of fire extinguishing equipment, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15733190A JPH07112B2 (en) | 1990-06-14 | 1990-06-14 | Automatic airtight inspection system for main piping of fire extinguishing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15733190A JPH07112B2 (en) | 1990-06-14 | 1990-06-14 | Automatic airtight inspection system for main piping of fire extinguishing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0449983A true JPH0449983A (en) | 1992-02-19 |
| JPH07112B2 JPH07112B2 (en) | 1995-01-11 |
Family
ID=15647359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15733190A Expired - Fee Related JPH07112B2 (en) | 1990-06-14 | 1990-06-14 | Automatic airtight inspection system for main piping of fire extinguishing equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07112B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111330203A (en) * | 2020-03-16 | 2020-06-26 | 广州驿通智能科技有限公司 | Method and device for monitoring air pressure of fire extinguisher |
-
1990
- 1990-06-14 JP JP15733190A patent/JPH07112B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111330203A (en) * | 2020-03-16 | 2020-06-26 | 广州驿通智能科技有限公司 | Method and device for monitoring air pressure of fire extinguisher |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07112B2 (en) | 1995-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11865387B2 (en) | Fluid control assemblies for sprinkler systems | |
| CN101242877B (en) | Firefighting in railway vehicles | |
| CN108853837B (en) | Walk-in temperature test device | |
| CN111359120A (en) | Rail transit vehicle fire detection and extinguishing system and control method thereof | |
| US6059046A (en) | Low pressure carbon dioxide fire protection system for semiconductor fabrication facility | |
| JP2021139390A (en) | Hydrogen filling device | |
| JPH0739603A (en) | Carbon dioxide fire extinguishing equipment | |
| JPH10225529A (en) | Foam fire extinguishing equipment | |
| JP2007068639A (en) | Gas fire extinguishing equipment | |
| JPH0517083Y2 (en) | ||
| US10709918B2 (en) | Preaction sprinkler system operation booster | |
| EP1475128A1 (en) | Inert gas fire-fighting apparatus and relative method for extinguishing fires | |
| JPH1199222A (en) | Sprinkler fire extinguishing equipment | |
| JP5253271B2 (en) | Fire extinguishing equipment | |
| JPH07112B2 (en) | Automatic airtight inspection system for main piping of fire extinguishing equipment | |
| JP6594769B2 (en) | Packaged automatic fire extinguishing equipment | |
| KR200343725Y1 (en) | A inspector of a fire extinguisher using gas | |
| KR20240055997A (en) | A valve monitoring system to prevent liquid cargo loading and unloading accidents | |
| JPH0749968Y2 (en) | Fire extinguishing equipment selection valve | |
| RU2283674C2 (en) | Method and system for fire extinguishment in special-purpose closed objects | |
| JP2713066B2 (en) | Gas supply equipment abnormality detector | |
| JPH04303471A (en) | Automatic inspecting device for fire extinguishing equipment | |
| JP3608323B2 (en) | Sprinkler fire extinguishing equipment | |
| CN218281217U (en) | Water spraying system for ammonia unloading area of power plant | |
| JPH0448470B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |