JP5318017B2 - Bubble extinguishing equipment inspection device and inspection method - Google Patents

Bubble extinguishing equipment inspection device and inspection method Download PDF

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JP5318017B2
JP5318017B2 JP2010076517A JP2010076517A JP5318017B2 JP 5318017 B2 JP5318017 B2 JP 5318017B2 JP 2010076517 A JP2010076517 A JP 2010076517A JP 2010076517 A JP2010076517 A JP 2010076517A JP 5318017 B2 JP5318017 B2 JP 5318017B2
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浩史 湯浅
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Description

本発明は、泡消火設備の点検装置および点検方法に関する。   The present invention relates to an inspection device and an inspection method for foam fire extinguishing equipment.

図３は一般的な泡消火設備の主な構成機器の説明図である。
泡消火設備は、給水本管１と、給水本管１に消火用水を送水する加圧送水装置３と、給水本管１に設置された混合器５（ベンチュリー型、デマンド型、オリフィス型）と、混合器５の二次側の泡水溶液送液管２の先端部に設けられた図示しない発泡装置とを備えている。なお、発泡装置は供給される泡水溶液に空気を混合し、所定の発泡倍率で消火用泡を生成するものであり、石油タンク等に設けるエアフォームチャンバ、泡ノズル、固定式泡ヘッド等がある。また、給水本管１における混合器５の一次側には混合器元弁９が設置され、混合器元弁９と混合器５との間の給水本管１から分岐して加圧水導入管１１が設けられ、加圧水導入管１１には泡原液タンク加圧元弁１３が設けられると共に加圧水導入管１１の先端に本設備用の泡原液タンク１５が接続されている。泡原液タンク１５には、消火薬剤泡原液が貯蔵されており、その排出口側には泡原液吐出管１７が接続され、泡原液吐出元弁１８及び泡原液吐出逆止弁１９を介して混合器５に接続されている。 FIG. 3 is an explanatory diagram of main components of a general foam fire extinguishing facility.
The foam fire extinguishing equipment includes a water supply main 1, a pressurized water supply device 3 for supplying water for fire extinguishing to the water supply main 1, and a mixer 5 (Venturi type, demand type, orifice type) installed in the water supply main 1. And a foaming device (not shown) provided at the tip of the foam aqueous solution feeding pipe 2 on the secondary side of the mixer 5. The foaming device mixes air with the supplied foam aqueous solution and generates fire-extinguishing foam at a predetermined foaming ratio, and has an air foam chamber, a foam nozzle, a fixed foam head, etc. provided in an oil tank or the like. . In addition, a mixer main valve 9 is installed on the primary side of the mixer 5 in the water supply main pipe 1, and a pressurized water introduction pipe 11 is branched from the water supply main pipe 1 between the mixer main valve 9 and the mixer 5. The pressurized water introduction pipe 11 is provided with a foam stock solution tank pressurizing source valve 13, and a foam stock solution tank 15 for this equipment is connected to the tip of the pressurized water introduction pipe 11. The foam stock solution tank 15 stores a fire extinguishing chemical foam stock solution, and a foam stock solution discharge pipe 17 is connected to the discharge side of the foam stock solution tank 15, and is mixed via a foam stock solution discharge source valve 18 and a foam stock solution discharge check valve 19. Connected to the device 5.

上記のように構成された泡消火設備は、火災が発生すると、加圧送水装置３が起動して消火用水が給水本管１に送水される。給水本管１に送水された消火用水は、混合器５に送られると共に加圧水導入管１１にも送られて泡原液タンク１５を加圧して泡原液を泡原液吐出管１７に押し出す。混合器５では、給水本管１から送られた消火用水に泡原液吐出管１７から送られた泡原液が所定の割合で混合されて泡水溶液送液管２に送出され、図示しない発泡装置から消火用泡となって放出される。   In the foam fire extinguishing equipment configured as described above, when a fire occurs, the pressurized water supply device 3 is activated and fire-extinguishing water is supplied to the water supply main pipe 1. The fire-extinguishing water sent to the water supply main pipe 1 is sent to the mixer 5 and also to the pressurized water introduction pipe 11 to pressurize the foam stock solution tank 15 and push the foam stock solution to the foam stock solution discharge pipe 17. In the mixer 5, the foam stock solution sent from the foam stock solution discharge pipe 17 is mixed at a predetermined ratio with the fire-fighting water sent from the water supply main pipe 1 and sent to the foam aqueous solution feed pipe 2 from a foaming device (not shown). Released as fire extinguishing foam.

泡消火設備は、長期間に亘って設備の性能を最良の状態に維持する必要からその点検が義務付けられている。具体的には、危険物の規制に関する規則第６２条の５の５において、第三種の固定式の泡消火設備を設ける屋外タンク貯蔵所に係わる点検は、告示で定めるところにより、当該泡消火設備の泡の適正な放出を確認する一体的な点検を行わなければならないとされている。   Foam fire extinguishing equipment is required to be inspected because it is necessary to maintain the best performance of the equipment for a long period of time. Specifically, in Article 62-5-5 of the Regulations on the Regulation of Dangerous Goods, the inspection related to the outdoor tank storage where a third type of fixed foam fire extinguishing equipment is installed shall It is said that an integral check must be performed to ensure proper release of equipment foam.

従来、上記の点検を実施するにあたり、実際の泡消火薬剤を用いて行っていた。しかしながら、点検によって発生する泡消火薬剤と消火用水の混合液からなる泡水溶液（３〜６％程度）は排水基準を超えるので、環境汚染を防ぐため、下水へ流すことができず、産業廃棄物として処理していたが、これによる点検コストの高さが課題となっていた。
そこで、上記課題を解決するものとして、泡消火設備の泡原液タンク１５をバイパスして、着色した水溶液を入れた点検用仮設タンクを設け、この着色水溶液を泡消火薬剤の代わりに混合器５によって消火用水に混合して希釈着色水溶液とし、この希釈着色水溶液を混合器５の下流側に設けた抜取管から抜き出し、抜き出された希釈着色水溶液に試験光を透過させてその透過率を測定することによって、混合比を測定しようとする点検装置と点検方法が提案されている（特許文献１参照）。
この点検装置と点検方法によれば、点検時の排水基準をクリアできるので、産業廃棄物の処理を不要とすることができ、点検コストを大幅に削減できるとしている。 Conventionally, in carrying out the above inspection, an actual foam was used. However, the foam aqueous solution (about 3 to 6%) consisting of a mixture of foam fire extinguishing agent and fire extinguishing water generated by inspection exceeds the drainage standard, so it cannot be discharged into sewage to prevent environmental pollution. However, the high inspection cost was a problem.
Therefore, as a solution to the above problem, a temporary tank for inspection containing a colored aqueous solution is provided, bypassing the foam stock solution tank 15 of the foam fire extinguishing equipment, and this colored aqueous solution is replaced by a mixer 5 instead of the foam fire extinguishing agent. Mixing with fire-extinguishing water to form a diluted colored aqueous solution, this diluted colored aqueous solution is extracted from a sampling tube provided on the downstream side of the mixer 5, and the transmittance is measured by transmitting test light through the extracted diluted colored aqueous solution. Thus, an inspection device and an inspection method for measuring the mixture ratio have been proposed (see Patent Document 1).
According to this inspection device and inspection method, since the drainage standard at the time of inspection can be cleared, it is possible to dispense with the treatment of industrial waste and to greatly reduce the inspection cost.

特開２００８−３０１９４２号公報JP 2008-301942 A

特許文献１に記載された点検装置においては、混合器直近の下流側に抜き取り管を設け、ここから希釈着色水溶液を採取して測定するようにしている。つまり、特許文献１の点検装置は、少なくとも、実際の配管とエアフォームチャンバ等の発泡装置、あるいはこれらと同等の装置を用いないで点検する装置構成になっており、混合器周辺の圧力分布が実際の動作時とは異なっている可能性があり、実際の運転状態を反映させた、装置の一体的な点検ができるかどうかは疑問である。   In the inspection device described in Patent Document 1, a sampling tube is provided on the downstream side in the immediate vicinity of the mixer, and a dilute colored aqueous solution is collected and measured from here. That is, the inspection apparatus of Patent Document 1 has an apparatus configuration in which inspection is performed without using at least actual piping and a foaming apparatus such as an air foam chamber, or an equivalent apparatus, and the pressure distribution around the mixer is It may be different from the actual operation time, and it is doubtful whether the apparatus can be inspected in an integrated manner reflecting the actual operation state.

また、特許文献１においては、混合器による着色水溶液の混合割合を希釈着色水溶液に試験光を照射して試験光の透過率によって測定するとしているが、透過率によって精度よく測定するには試験光が着色水溶液によって十分に減光することが必要となる。
試験光が着色水溶液によって十分に減光するためには、透過率測定装置の光路長を非常に長くするか、あるいは着色水溶液を高い濃度で用いることが考えられ、これらの条件が満たされない場合は測定精度が著しく劣るものとなる。
しかしながら、透過率測定装置の光路長を長くするためには、泡消火設備が設置された現場に、数十ｍもの試験用光路を有する透過率測定装置を持ち込み、その光路長を満たす大量の希釈水溶液を用意しなければならないが、このようなことは実際には困難である。
他方、高濃度の着色水溶液を用いる場合には、希釈後の着色水溶液が産業用廃棄物にはならないとしても、濃厚な着色水溶液を排出することに、環境汚染を防止しているとの理解を得ることは難しい。 In Patent Document 1, the mixing ratio of the colored aqueous solution by the mixer is measured by irradiating the diluted colored aqueous solution with the test light and the transmittance of the test light. Must be sufficiently dimmed by the colored aqueous solution.
In order for the test light to be sufficiently dimmed by the colored aqueous solution, it is possible to make the optical path length of the transmittance measuring device very long or use the colored aqueous solution at a high concentration, and if these conditions are not satisfied, The measurement accuracy is extremely inferior.
However, in order to lengthen the optical path length of the transmittance measuring device, bring a transmittance measuring device having a test light path of several tens of meters to the site where the bubble extinguishing equipment is installed, and perform a large amount of dilution to satisfy the optical path length. Although an aqueous solution must be prepared, this is difficult in practice.
On the other hand, in the case of using a highly concentrated colored aqueous solution, it is understood that environmental pollution is prevented by discharging a concentrated colored aqueous solution even if the diluted colored aqueous solution does not become industrial waste. Difficult to get.

以上のように特許文献１の点検装置及び方法では、混合器での混合割合が、実際に泡消火設備を稼動させてエアフォームチャンバ等の発泡装置から泡水溶液を放出した状態を的確に反映されたものかどうかが疑問であり、また混合器で希釈された希釈着色水溶液の混合割合を正確に測定できない点でも問題がある。   As described above, in the inspection device and method of Patent Document 1, the mixing ratio in the mixer is accurately reflected in the state in which the foam aqueous solution is actually released from the foaming device such as an air foam chamber by operating the foam extinguishing equipment. There is also a problem that the mixing ratio of the diluted colored aqueous solution diluted with the mixer cannot be measured accurately.

本発明はかかる課題を解決するためになされたものであり、泡消火設備を実際に稼動させた状態を的確に反映した泡消火設備の一体的な点検を環境汚染することなく行える点検装置及び点検方法を提供することを目的としている。
また、混合器で希釈された試験液の混合割合を正確に測定できる泡消火設備の点検装置及び方法を提供することを目的としている。 The present invention has been made to solve such a problem, and an inspection apparatus and inspection capable of performing an integrated inspection of the foam fire-extinguishing equipment accurately reflecting the state in which the foam fire-extinguishing equipment is actually operated without causing environmental pollution. It aims to provide a method.
Moreover, it aims at providing the inspection apparatus and method of the foam fire-extinguishing equipment which can measure correctly the mixing ratio of the test liquid diluted with the mixer.

（１）本発明に係る泡消火設備の点検装置は、泡消火薬剤を貯蔵した泡原液タンクと、給水本管を流れる流水量に対して前記泡原液タンク内の泡消火薬剤を所定割合で混合する混合器とを備えてなる泡消火設備を点検する泡消火設備の点検装置であって、
点検時に前記泡原液タンクをバイパスして設置可能でかつコロイド溶液から成る試験液を貯留する仮設の試験液タンクと、前記混合器の二次側に接続する試験用配管および試験用泡放出ヘッド又はノズルと、前記混合器の二次側の圧力を調整する圧力調整手段と、前記泡消火設備を運転して前記試験用泡放出ヘッド又はノズルから放出された前記試験液と水との混合水溶液の濃度をチンダル現象による光散乱の光量を測定する光散乱式濃度測定手段とを備えたことを特徴とするものである。
本発明（１）によれば、土壌や下水に排出しても無害な、ゼラチン、石鹸水、墨汁、等のコロイド溶液を用いることができるので、産業廃棄物を放出することなく点検できる。
また、チンダル現象による散乱光の光量を測定する濃度測定手段を用いるので、濃度を正確に測定することができる上、低い濃度であっても測定可能なので、試験液に用いて点検で排出するコロイド物質を少量で済ますことができる。
なお、本発明（１）の効果は、後述の本発明（４）においても同様に得ることができる。
(1) The foam extinguishing equipment inspection apparatus according to the present invention mixes a foam stock solution tank that stores a foam fire extinguishing agent and a foam extinguishing agent in the foam stock solution tank in a predetermined ratio with respect to the amount of flowing water flowing through a water supply main. A foam fire-fighting equipment inspection device for inspecting a foam fire-fighting equipment comprising:
A temporary test liquid tank that can be installed by bypassing the foam stock liquid tank at the time of inspection and that stores a test liquid made of a colloidal solution , a test pipe and a test foam discharge head connected to the secondary side of the mixer, or nozzles and a pressure adjusting means for adjusting the pressure of the secondary side of the mixer, and driving the foam fire-extinguishing system of a mixed aqueous solution of the test solution and water released from the test foam discharge head or nozzle And a light scattering type concentration measuring means for measuring the amount of light scattered by the Tyndall phenomenon .
According to the present invention (1), a colloidal solution such as gelatin, soapy water, ink, etc., which is harmless even if discharged into soil or sewage, can be used, so that inspection can be performed without releasing industrial waste.
In addition, since a concentration measuring means that measures the amount of scattered light due to the Tyndall phenomenon is used, the concentration can be measured accurately, and even at low concentrations, it can be measured. A small amount of material can be used.
In addition, the effect of this invention (1) can be acquired similarly also in this invention (4) mentioned later.

（２）また、泡消火薬剤を貯蔵した泡原液タンクと、給水本管を流れる流水量に対して前記泡原液タンク内の泡消火薬剤を所定割合で混合する混合器とを備えてなる泡消火設備を点検する泡消火設備の点検装置であって、
点検時に前記泡原液タンクをバイパスして設置可能でかつ電解液から成る試験液を貯留する仮設の試験液タンクと、前記混合器の二次側に接続する試験用配管および試験用泡放出ヘッド又はノズルと、前記混合器の二次側の圧力を調整する圧力調整手段と、前記泡消火設備を運転して前記試験用泡放出ヘッド又はノズルから放出された前記試験液と水との混合水溶液の濃度を測定する導電率計とを備えたことを特徴とするものである。
本発明（２）によれば、食品添加物にも用いられ、土壌や下水に排出しても無害な、酢酸カリウム、クエン酸カリウム等の電解質を用いることができるので、産業廃棄物を放出することなく点検できる。
また、濃度測定に導電率計を用いるので、濃度を正確に測定することができる上、低い濃度であっても測定可能なので、試験液に用いて点検で排出する電解質を少量で済ますことができる。
なお、本発明（２）の効果は、後述の本発明（５）においても同様に得ることができる。
(2) A foam fire extinguisher comprising a foam stock solution tank that stores a foam fire extinguishing agent, and a mixer that mixes the foam stock solution in the foam stock solution tank at a predetermined ratio with respect to the amount of flowing water flowing through the water supply main. An inspection device for a foam fire-fighting facility for inspecting the facility,
A temporary test liquid tank that can be installed by bypassing the foam raw liquid tank at the time of inspection and that stores a test liquid made of an electrolyte, a test pipe and a test foam discharge head connected to the secondary side of the mixer, or A nozzle, a pressure adjusting means for adjusting the pressure on the secondary side of the mixer, and a mixed aqueous solution of the test liquid and water discharged from the test foam discharge head or nozzle by operating the foam extinguishing equipment. And a conductivity meter for measuring the concentration .
According to the present invention (2), an electrolyte such as potassium acetate or potassium citrate, which is also used for food additives and is harmless even when discharged to soil or sewage, can be used, thus releasing industrial waste. Can be checked without any problems.
In addition, since a conductivity meter is used to measure the concentration, it is possible to measure the concentration accurately, and even at low concentrations, it is possible to measure a small amount of electrolyte that is used as a test solution and discharged by inspection. .
In addition, the effect of this invention (2) can be acquired similarly also in this invention (5) mentioned later.

（３）また、上記（１）又は（２）に記載のものにおいて、前記試験液タンクは、前記給水本管に接続されて充水される一次側と、前記混合器側に接続されると共に試験液で満たされる二次側と、該二次側と前記一次側とを分離するように配置され、前記一次側に消火用水が充水されることによって前記二次側を加圧する隔膜を備えてなることを特徴とするものである。
本発明（３）によれば、試験液タンクの一次側に試験液が流れ込むことが無いので、泡消火設備の泡原液タンクや混合器の一次側を試験液で汚染することがない。
(3) In the above (1) or (2), the test solution tank is connected to the primary side which is connected to the water supply main and is filled with water, and to the mixer side. A secondary side filled with a test solution, and a diaphragm that pressurizes the secondary side by being filled with fire-extinguishing water on the primary side, arranged so as to separate the secondary side and the primary side. It is characterized by.
According to the present invention (3), since the test liquid does not flow into the primary side of the test liquid tank, the primary side of the foam stock solution tank and the mixer of the foam fire extinguishing equipment is not contaminated with the test liquid.

（４）本発明に係る泡消火設備の点検方法は、泡消火薬剤を貯蔵した泡原液タンクと、給水本管を流れる流水量に対して前記泡原液タンク内の泡消火薬剤を所定割合で混合する混合器とを備えてなる泡消火設備を点検する方法であって、
前記泡原液タンクをバイパスする経路にコロイド溶液から成る試験液を貯留する仮設の試験液タンクを設置して、前記混合器の二次側の圧力状態が本設備における圧力状態と同じ状態になるようにして前記泡消火設備を運転し、
前記試験用タンクから送出された試験液が前記混合器で希釈され、該混合器の二次側から放出された混合水溶液の濃度をチンダル現象による光散乱の光量を測定する光散乱式濃度測定手段で測定することを特徴とするものである。
(4) The foam extinguishing equipment inspection method according to the present invention comprises mixing the foam stock solution tank storing the foam fire extinguishing agent and the foam extinguishing agent in the foam stock solution tank in a predetermined ratio with respect to the amount of flowing water flowing through the water supply main. A method for inspecting a foam fire extinguishing system comprising:
A temporary test solution tank for storing a test solution made of a colloidal solution is installed in a path bypassing the foam stock solution tank so that the pressure state on the secondary side of the mixer is the same as the pressure state in this equipment. To operate the foam fire extinguishing equipment,
Light scattering type concentration measuring means for measuring the amount of light scattering due to the Tyndall phenomenon by diluting the test solution sent from the test tank with the mixer and discharging the concentration of the mixed aqueous solution released from the secondary side of the mixer It is characterized by measuring with.

（５）また、泡消火薬剤を貯蔵した泡原液タンクと、給水本管を流れる流水量に対して前記泡原液タンク内の泡消火薬剤を所定割合で混合する混合器とを備えてなる泡消火設備を点検する方法であって、
前記泡原液タンクをバイパスする経路に電解液から成る試験液を貯留する仮設の試験液タンクを設置して、前記混合器の二次側の圧力状態が本設備における圧力状態と同じ状態になるようにして前記泡消火設備を運転し、
前記試験用タンクから送出された試験液が前記混合器で希釈され、該混合器の二次側から放出された混合水溶液の濃度を導電率計で測定することを特徴とするものである。
(5) A foam fire extinguisher comprising a foam stock solution tank that stores a foam fire extinguishing agent, and a mixer that mixes the foam stock solution in the foam stock solution tank at a predetermined ratio with respect to the amount of flowing water flowing through the water supply main. A method for inspecting equipment,
A temporary test solution tank for storing a test solution made of an electrolyte is installed in a path bypassing the foam stock solution tank so that the pressure state on the secondary side of the mixer is the same as the pressure state in this equipment. To operate the foam fire extinguishing equipment,
The test liquid sent from the test tank is diluted by the mixer, and the concentration of the mixed aqueous solution discharged from the secondary side of the mixer is measured by a conductivity meter .

（６）また、上記（４）又は（５）に記載のものにおいて、前記混合水溶液の濃度測定終了後、前記泡消火設備の運転を停止した上で、前記仮設の試験液タンクを取り外し、前記試験液タンクを取り外した後の前記バイパス経路を仮設の配管又はホースで連結し、泡原液タンクを閉止したまま再び前記泡消火設備を運転することによって、前記点検方法の実施時において試験液に暴露した部分を加圧水で洗浄することを特徴とするものである。
本発明（６）によれば、点検終了後、仮設の配管又はホースを取り付けて泡消火設備を運転することによって、点検時に試験液に暴露した部分を加圧水で洗浄することができるので、点検後の復旧が容易であり、また、試験液による腐食等で設備を損なうことがない。
(6) Further, in the above (4) or (5), after the measurement of the concentration of the mixed aqueous solution is completed, the operation of the foam fire extinguishing equipment is stopped, and then the temporary test liquid tank is removed, By connecting the bypass path after removing the test liquid tank with a temporary pipe or hose and operating the foam fire extinguishing equipment again with the foam stock solution tank closed, the test liquid is exposed to the test liquid during the inspection method. This part is characterized by washing with pressurized water.
According to the present invention (6), after the inspection, by attaching a temporary pipe or hose and operating the foam fire extinguishing equipment, the portion exposed to the test liquid at the time of inspection can be washed with pressurized water. Can be easily restored, and the equipment is not damaged by corrosion caused by the test solution.

本発明に係る泡消火設備の点検装置によれば、点検時に前記泡原液タンクをバイパスして設置可能でかつコロイド溶液から成る試験液を貯留する仮設の試験液タンクと、前記混合器の二次側に接続する試験用配管および試験用泡放出ヘッド又はノズルと、前記混合器の二次側の圧力を調整する圧力調整手段と、前記泡消火設備を運転して前記試験用泡放出ヘッド又はノズルから放出された前記試験液と水との混合水溶液の濃度をチンダル現象による光散乱の光量を測定する光散乱式濃度測定手段とを備えたので、圧力調整手段によって混合器の二次側の圧力を実際に泡消火設備を稼動させたのと同等の圧力状態に調整することができ、実際の運転状況に近い一次圧及び二次圧で混合器が動作し、混合器の混合比を実際の運転状況に近い状態で測定することができる。
また、本発明に係る泡消火設備の点検方法によれば、混合器の二次側の圧力状態が本設備における圧力状態と同じ状態になるようにして泡消火設備を運転し、前記混合器の二次側から放出される混合水溶液の濃度を濃度測定手段で測定するようにしているので、実際の運転状況に近い一次圧及び二次圧で混合器が動作し、混合器の混合比を実際の運転状況に近い状態で測定することができる。 According to the inspection apparatus for a foam fire extinguishing apparatus according to the present invention, a temporary test liquid tank that can be installed by bypassing the foam raw liquid tank at the time of inspection and stores a test liquid made of a colloidal solution , and a secondary of the mixer Test piping and test foam discharge head or nozzle connected to the side, pressure adjusting means for adjusting the pressure on the secondary side of the mixer, and the test foam discharge head or nozzle by operating the foam extinguishing equipment Since there is a light scattering type concentration measuring means for measuring the light scattering concentration due to the Tyndall phenomenon , the concentration of the mixed aqueous solution of the test solution and water released from the pressure on the secondary side of the mixer by the pressure adjusting means Can be adjusted to a pressure state equivalent to the actual operation of the foam fire extinguishing equipment, the mixer operates at the primary and secondary pressures close to the actual operating conditions, and the mixing ratio of the mixer is In a state close to the driving situation It can be constant.
Further, according to the method for checking the foam fire extinguishing equipment according to the present invention, the foam fire extinguishing equipment is operated such that the pressure state on the secondary side of the mixer is the same as the pressure state in the equipment, Since the concentration measurement means measures the concentration of the mixed aqueous solution released from the secondary side, the mixer operates at the primary and secondary pressures close to the actual operating conditions, and the mixing ratio of the mixer is actually measured. It can be measured in a state close to the driving situation.

本発明の一実施の形態に係る泡消火設備の点検装置及び点検方法の説明図である。It is explanatory drawing of the inspection apparatus and inspection method of the foam fire extinguishing equipment which concerns on one embodiment of this invention. 本発明の一実施の形態に係る泡消火設備の点検装置及び点検方法の説明図である。It is explanatory drawing of the inspection apparatus and inspection method of the foam fire extinguishing equipment which concerns on one embodiment of this invention. 一般的な泡消火設備の主な構成機器の説明図である。It is explanatory drawing of the main components of a general foam fire extinguishing equipment.

本発明の一実施の形態に係る泡消火設備の点検装置を図１に基づいて説明する。
点検の対象となる泡消火設備は、図３に示したものと同様であり、図３に示した構成機器と同一部分には同一の符号を付してある。
本実施の形態に係る泡消火設備の点検装置は、点検時に泡原液タンク１５をバイパスして設置可能でかつ試験液を貯留する仮設の試験液タンク２１と、混合器５の二次側の圧力を調整する圧力調整手段としての圧力調整弁２３と、圧力調整弁２３の二次側に接続された試験用ホース２５と、試験用ホース２５の先端に設けられた試験用放出ノズル２７と、試験用ホース２５に設けられて泡消火設備を運転して前記試験用放出ノズル２７から放出される試験液と水との混合水溶液の濃度を測定する濃度測定手段（図示なし）とを備えている。
以下、各構成をより詳細に説明する。 An inspection apparatus for foam fire extinguishing equipment according to an embodiment of the present invention will be described with reference to FIG.
The foam fire extinguishing equipment to be inspected is the same as that shown in FIG. 3, and the same parts as those shown in FIG.
The inspection apparatus for the foam fire extinguishing equipment according to the present embodiment includes a temporary test liquid tank 21 that can be installed by bypassing the foam raw liquid tank 15 at the time of inspection and stores the test liquid, and a pressure on the secondary side of the mixer 5. A pressure regulating valve 23 as a pressure regulating means for regulating the pressure, a test hose 25 connected to the secondary side of the pressure regulating valve 23, a test discharge nozzle 27 provided at the tip of the test hose 25, and a test Concentration measuring means (not shown) for measuring the concentration of the mixed aqueous solution of the test liquid and water discharged from the test discharge nozzle 27 by operating the foam fire extinguishing equipment provided on the hose 25 for operation.
Hereinafter, each configuration will be described in more detail.

＜試験液タンク＞
試験液タンク２１は、点検時に泡原液タンク１５をバイパスして設置可能でかつ試験液を貯留する仮設のタンクである。
試験液タンク２１は、給水本管１に送水された消火用水が充水される試験液タンク一次側２９と、混合器５側に接続されると共に試験液で満たされる試験液タンク二次側３１と、試験液タンク二次側３１と試験液タンク一次側２９とを分離するように配置され、試験液タンク一次側２９に消火用水が充水されることによって試験液タンク二次側３１を加圧する隔膜３３を備えて構成されている。
このような試験液タンク２１の具体的な構成の一例を示すと、金属製のタンク内に可撓性のバック（隔膜３３に相当する）を配置して、バック内に試験液を貯留してバックの出口を混合器５側に接続する。試験液タンク一次側２９に加圧水を充水することで、バックに貯留されている試験液が混合器５側に押し出される。
試験液タンク一次側２９には、加圧水導入側仕切弁３５が設けられ、加圧水導入側仕切弁３５の一次側には加圧水導入ホース３７の出側を接続するための加圧水導入ホース出側接続部３９が設けられている。加圧水導入ホース３７の他端は、加圧水導入管１１から分岐した分岐部に設置された加圧水仕切弁４１の二次側に設けられた加圧水導入ホース入側接続部４３に接続されている。 <Test solution tank>
The test liquid tank 21 is a temporary tank that can be installed by bypassing the foam stock liquid tank 15 during inspection and that stores the test liquid.
The test liquid tank 21 includes a test liquid tank primary side 29 that is filled with water for fire extinguishing sent to the water supply main 1, and a test liquid tank secondary side 31 that is connected to the mixer 5 side and is filled with the test liquid. The test liquid tank secondary side 31 and the test liquid tank primary side 29 are separated from each other, and the test liquid tank secondary side 31 is added by filling the test liquid tank primary side 29 with water for fire extinguishing. The diaphragm 33 is configured to be pressed.
An example of a specific configuration of such a test liquid tank 21 is as follows. A flexible bag (corresponding to the diaphragm 33) is arranged in a metal tank, and the test liquid is stored in the bag. The outlet of the bag is connected to the mixer 5 side. By filling the test liquid tank primary side 29 with pressurized water, the test liquid stored in the bag is pushed out to the mixer 5 side.
The test liquid tank primary side 29 is provided with a pressurized water introduction side gate valve 35, and a pressurized water introduction hose outlet side connection part 39 for connecting the outlet side of the pressurized water introduction hose 37 to the primary side of the pressurized water inlet side gate valve 35. Is provided. The other end of the pressurized water introduction hose 37 is connected to a pressurized water introduction hose inlet side connection portion 43 provided on the secondary side of the pressurized water gate valve 41 installed at the branch portion branched from the pressurized water introduction pipe 11.

また、試験液タンク二次側３１には、試験液タンク側仕切弁４５が設けられ、試験液タンク側仕切弁４５の二次側には試験液送出ホース４７の一端を接続するための試験液送出ホース入側接続部４９が設けられている。試験液送出ホース４７の他端は、泡原液吐出管１７から分岐した分岐部に設置された試験液出側仕切弁５１の一次側に設けられた試験液送出ホース出側接続部５３に接続されている。   The test liquid tank secondary side 31 is provided with a test liquid tank side gate valve 45, and a test liquid for connecting one end of the test liquid delivery hose 47 to the secondary side of the test liquid tank side gate valve 45. A delivery hose entry side connection 49 is provided. The other end of the test liquid delivery hose 47 is connected to a test liquid delivery hose outlet side connection part 53 provided on the primary side of the test liquid outlet side gate valve 51 installed at a branch portion branched from the foam stock solution discharge pipe 17. ing.

試験液タンク２１に貯留される試験液としては、酢酸カリウム、クエン酸カリウム等の電解液を用いることができる。電解液は、土壌や下水に排出しても無害であり、産業廃棄物を放出することなく点検できる。
また、試験液の他の例としては、ゼラチン、石鹸水、墨汁、等のコロイド溶液を用いることができる。コロイド溶液は、土壌や下水に排出しても無害であり、ゼラチン、石鹸水、墨汁、等のコロイド溶液を用いることができるので、産業廃棄物を放出することなく点検できる。 As the test solution stored in the test solution tank 21, an electrolytic solution such as potassium acetate or potassium citrate can be used. The electrolyte is harmless even if discharged into soil or sewage, and can be checked without releasing industrial waste.
Further, as another example of the test solution, a colloidal solution such as gelatin, soapy water, and ink can be used. The colloidal solution is harmless even when discharged into soil or sewage, and since colloidal solutions such as gelatin, soapy water, and ink can be used, inspection can be performed without releasing industrial waste.

＜圧力調整弁＞
圧力調整弁２３は、混合器５の二次側の泡水溶液送液管２の分岐部に設けられている。試験時においては、泡水溶液送液管２に設けられた試験用仕切弁５５を閉止し、圧力調整弁２３によって混合器５の二次側の圧力を本設備が稼動した泡放出時と同じになるように調整する。試験時において、圧力調整は、混合器５の二次側に設置された圧力計５７の表示を見ながら調整する。
なお、圧力調整弁２３は、平常時においては、閉止することで仕切弁として機能する。
圧力調整弁２３の二次側には、試験用ホース２５を接続するための試験用ホース接続部５９が設けられている。 <Pressure adjustment valve>
The pressure regulating valve 23 is provided at a branch portion of the aqueous foam solution feeding pipe 2 on the secondary side of the mixer 5. At the time of the test, the test gate valve 55 provided in the foam aqueous solution feeding pipe 2 is closed, and the pressure on the secondary side of the mixer 5 is set to be the same as that at the time of foam discharge when the equipment is operated by the pressure regulating valve 23. Adjust so that During the test, the pressure is adjusted while looking at the display of the pressure gauge 57 installed on the secondary side of the mixer 5.
In addition, the pressure regulating valve 23 functions as a gate valve by closing in normal times.
On the secondary side of the pressure regulating valve 23, a test hose connection part 59 for connecting the test hose 25 is provided.

＜試験用ホース＞
試験用ホース２５は、圧力調整弁２３の二次側に設けられた試験用ホース接続部５９に接続されて試験用の混合水を取り出すためのものである。 <Test hose>
The test hose 25 is connected to a test hose connection part 59 provided on the secondary side of the pressure regulating valve 23 to take out test mixed water.

＜試験用放出ノズル＞
試験用放出ノズル２７は、試験用ホース２５の先端に設けられて、本設備のエアフォームチャンバ等の発泡装置が開放したときと同様の圧力と流量で混合器で希釈された試験液を放出する。
なお、試験用放出ノズル２７に代えて、試験用放出ヘッドを設けてもよい。 <Test discharge nozzle>
The test discharge nozzle 27 is provided at the tip of the test hose 25, and discharges the test liquid diluted in the mixer at the same pressure and flow rate as when the foaming device such as the air foam chamber of this equipment is opened. .
Instead of the test discharge nozzle 27, a test discharge head may be provided.

＜濃度測定手段＞
濃度測定手段は、試験用放出ノズル２７から放出された消火用水に試験液が混合された混合液の濃度を測定するものである。試験液が電解液の場合には、濃度測定手段として導電率計を用いる。導電計を用いることで、希釈された試験液の濃度を正確に測定することができる上、低い濃度であっても測定可能なので、試験液に用いて点検で排出する電解質を少量で済ますことができる。
また、試験液がコロイド溶液の場合には、濃度測定手段としてチンダル現象による光散乱の光量を測定する光散乱式濃度測定器を用いる。光散乱式濃度測定器を用いることで、希釈された試験液の濃度を正確に測定することができる上、低い濃度であっても測定可能なので、試験液に用いて点検で排出するコロイド物質を少量で済ますことができる。 <Concentration measuring means>
The concentration measuring means measures the concentration of the mixed liquid in which the test liquid is mixed with the fire-extinguishing water discharged from the test discharge nozzle 27. When the test solution is an electrolytic solution, a conductivity meter is used as the concentration measuring means. By using a conductivity meter, the concentration of the diluted test solution can be measured accurately, and even a low concentration can be measured. it can.
When the test solution is a colloidal solution, a light scattering type concentration measuring device that measures the amount of light scattering due to the Tyndall phenomenon is used as the concentration measuring means. By using a light scattering type concentration meter, the concentration of the diluted test solution can be measured accurately, and even a low concentration can be measured. It can be done with a small amount.

上記のように構成された本実施の形態の泡消火設備の点検装置を用いた点検方法を説明する。
泡原液タンク１５をバイパスして仮設の試験液タンク２１を設置する。試験液タンク２１の設置は具体的には以下のようにする。
加圧水導入ホース入側接続部４３に加圧水導入ホース３７の一端を接続し、加圧水導入ホース３７の他端を、試験液タンク一次側２９に接続された加圧水導入ホース出側接続部３９に接続する。また、試験液送出ホース入側接続部４９に試験液送出ホース４７の一端を接続し、試験液送出ホース４７の他端を試験液送出ホース出側接続部５３に接続する。
また、試験用ホース接続部５９に試験用ホース２５を接続する。 An inspection method using the inspection apparatus for the foam fire extinguishing equipment of the present embodiment configured as described above will be described.
A temporary test solution tank 21 is installed by bypassing the foam stock solution tank 15. Specifically, the test liquid tank 21 is installed as follows.
One end of the pressurized water introduction hose 37 is connected to the pressurized water introduction hose inlet side connection part 43, and the other end of the pressurized water introduction hose 37 is connected to the pressurized water introduction hose outlet side connection part 39 connected to the test liquid tank primary side 29. In addition, one end of the test solution delivery hose 47 is connected to the test solution delivery hose inlet side connection portion 49, and the other end of the test solution delivery hose 47 is connected to the test solution delivery hose delivery side connection portion 53.
Further, the test hose 25 is connected to the test hose connection part 59.

上記のように、加圧水導入ホース３７、試験液送出ホース４７及び試験用ホース２５の接続が完了すると、泡原液吐出元弁１８及び試験用仕切弁５５を閉止する。他方、加圧水仕切弁４１、加圧水導入側仕切弁３５、試験液タンク側仕切弁４５、試験液出側仕切弁５１を開放する。
泡消火設備の運転を開始すると、加圧送水装置３によって消火用水が給水本管１に送水され、混合器５に送られると共に加圧水導入管１１にも送られる。加圧水導入管１１に送られた消火用水は、試験液タンク一次側２９に充水され、試験液タンク二次側３１の試験液を混合器５側に押し出す。混合器５では、給水本管１から送られた消火用水に試験液タンク２１から送られた試験液が所定の割合で混合されて試験用放出ノズル２７から放出される。
混合器５の二次側の圧力が実際の泡放出時の圧力と同じになるように圧力計５７の表示を見ながら圧力調整弁２３の開度を調整する。圧力調整弁２３の調整が完了した後、試験用放出ノズル２７から放出される混合液を採取して、濃度測定手段によって濃度を測定する。
混合水の濃度と混合割合の関係を予め求めておき、測定した濃度から混合器５での混合割合を求め、その割合が適切かどうかを判定する。 As described above, when the connection of the pressurized water introduction hose 37, the test liquid delivery hose 47, and the test hose 25 is completed, the foam stock solution discharge source valve 18 and the test gate valve 55 are closed. On the other hand, the pressurized water gate valve 41, the pressurized water introduction side gate valve 35, the test liquid tank side gate valve 45, and the test liquid outlet side gate valve 51 are opened.
When the operation of the foam fire-extinguishing equipment is started, fire-extinguishing water is sent to the water supply main pipe 1 by the pressurized water supply device 3 and sent to the mixer 5 and also to the pressurized water introduction pipe 11. The fire-extinguishing water sent to the pressurized water introduction pipe 11 is filled in the test liquid tank primary side 29 and pushes the test liquid in the test liquid tank secondary side 31 to the mixer 5 side. In the mixer 5, the test liquid sent from the test liquid tank 21 is mixed with fire extinguishing water sent from the water supply main pipe 1 at a predetermined ratio and discharged from the test discharge nozzle 27.
The opening degree of the pressure regulating valve 23 is adjusted while looking at the display of the pressure gauge 57 so that the pressure on the secondary side of the mixer 5 becomes the same as the pressure at the time of actual bubble discharge. After the adjustment of the pressure regulating valve 23 is completed, the liquid mixture discharged from the test discharge nozzle 27 is collected, and the concentration is measured by the concentration measuring means.
The relationship between the concentration of the mixed water and the mixing ratio is determined in advance, the mixing ratio in the mixer 5 is determined from the measured concentration, and it is determined whether the ratio is appropriate.

以上のように本実施の形態の泡消火設備の点検設備によれば、混合器５の二次側の圧力を調整する圧力調整弁２３を設けたことにより、混合器５の二次側の圧力を実際に泡消火設備を稼動させたのと同等の圧力に調整することができ、実際の運転状況に近い一次圧及び二次圧で混合器５が動作し、混合器５の混合比を実際の運転状況に近い状態で測定することができる。   As described above, according to the inspection equipment for the foam fire extinguishing system of the present embodiment, the pressure on the secondary side of the mixer 5 is provided by providing the pressure adjusting valve 23 that adjusts the pressure on the secondary side of the mixer 5. Can be adjusted to the same pressure as the actual operation of the foam fire extinguishing equipment, the mixer 5 operates at the primary pressure and the secondary pressure close to the actual operating conditions, and the mixing ratio of the mixer 5 is actually It can be measured in a state close to the driving situation.

なお、上記の実施の形態では、混合器５の二次側の圧力を、実際に泡消火設備を稼動させたのと同等の圧力に調整する方法として、圧力調整弁２３を用いたが、圧力調整弁２３を用いる以外の方法として、実設備におけるエアフォームチャンバ等の発泡装置が設置されている直ぐ手前に分岐管を設け、該分岐管に試験用ホース及び試験用放出ヘッド又はノズルを設けるようにすればよい。このようにすれば、圧力調整をしなくても、実際に泡消火設備を稼動させたのと同等の圧力分布状態にすることができる。   In the above embodiment, the pressure adjustment valve 23 is used as a method for adjusting the pressure on the secondary side of the mixer 5 to a pressure equivalent to the actual operation of the foam fire extinguishing equipment. As a method other than using the regulating valve 23, a branch pipe is provided immediately before a foaming apparatus such as an air foam chamber in actual equipment is installed, and a test hose and a test discharge head or nozzle are provided in the branch pipe. You can do it. In this way, even if pressure adjustment is not performed, it is possible to obtain a pressure distribution state equivalent to that in which the foam extinguishing equipment is actually operated.

＜混合割合判定後の動作＞
上記混合割合判定が終了後、泡消火設備の運転を停止する。加圧水導入ホース３７の一端側を加圧水導入ホース入側接続部４３から取外し、図２に示すように、試験液送出ホース入側接続部４９から外した試験液送出ホース４７の一端側を加圧水導入ホース入側接続部４３に接続する。その後、泡原液タンク１５を閉止したまま、再び泡消火設備を運転することによって、点検方法の実施時において試験液に暴露した部分を加圧水で洗浄する。
このように、点検時に試験液に暴露した部分を加圧水で洗浄することで、点検後の復旧が容易であり、また、試験液による腐食等で設備を損なうことがない。 <Operation after mixing ratio determination>
After the mixing ratio determination is completed, the operation of the foam fire extinguishing equipment is stopped. One end side of the pressurized water introduction hose 37 is removed from the pressurized water introduction hose inlet side connection part 43, and one end side of the test liquid delivery hose 47 removed from the test liquid delivery hose inlet side connection part 49 is removed as shown in FIG. Connect to the ingress connection 43. Thereafter, the foam extinguishing equipment is operated again while the foam stock solution tank 15 is closed, so that the portion exposed to the test solution is washed with pressurized water when the inspection method is performed.
Thus, by washing the portion exposed to the test solution with the pressurized water at the time of inspection, it is easy to recover after the inspection, and the equipment is not damaged due to corrosion by the test solution.

なお、上記の例では、試験液送出ホース４７の一端側を加圧水導入ホース入側接続部４３に直接接続したが、試験液送出ホース４７の一端側に別の配管又はホースを接続してこれを加圧水導入ホース入側接続部４３に接続するようにしてもよい。   In the above example, one end side of the test liquid delivery hose 47 is directly connected to the pressurized water introduction hose inlet side connection part 43, but another pipe or hose is connected to one end side of the test liquid delivery hose 47 and this is connected. You may make it connect to the pressurized water introduction hose inlet side connection part 43. FIG.

１ 給水本管 ２ 泡水溶液送液管
３ 送水ポンプ
５ 混合器（ベンチュリー型、デマンド型、オリフィス型）
９ 混合器元弁 １１ 加圧水導入管
１３ 泡原液タンク加圧元弁 １５ 泡原液タンク
１７ 泡原液吐出管 １８ 泡原液吐出元弁
１９ 泡原液吐出逆止弁 ２１ 試験液タンク
２３ 圧力調整弁 ２５ 試験用ホース
２７ 試験用放出ノズル ２９ 試験液タンク一次側
３１ 試験液タンク二次側 ３３ 隔膜
３５ 加圧水導入側仕切弁 ３７ 加圧水導入ホース
３９ 加圧水導入ホース出側接続部 ４１ 加圧水仕切弁
４３ 加圧水導入ホース入側接続部 ４５ 試験液タンク側仕切弁
４７ 試験液送出ホース ４９ 試験液送出ホース入側接続部
５１ 試験液出側仕切弁 ５３ 試験液送出ホース出側接続部
５５ 試験用仕切弁 ５７ 圧力計
５９ 試験用ホース接続部 1 Water Supply Main Pipe 2 Foam Aqueous Solution Pipe 3 Water Pump 5 Mixer (Venturi Type, Demand Type, Orifice Type)
DESCRIPTION OF SYMBOLS 9 Mixer original valve 11 Pressurized water introduction pipe 13 Foam stock solution tank pressurization original valve 15 Foam stock solution tank 17 Foam stock solution discharge pipe 18 Foam stock solution discharge source valve 19 Foam stock solution discharge check valve 21 Test solution tank 23 Pressure adjustment valve 25 For test Hose 27 Test discharge nozzle 29 Test liquid tank primary side 31 Test liquid tank secondary side 33 Diaphragm 35 Pressurized water inlet side gate valve 37 Pressurized water inlet hose 39 Pressurized water inlet hose outlet side connection 41 Pressurized water inlet hose inlet side connection Part 45 Test liquid tank side gate valve 47 Test liquid delivery hose 49 Test liquid delivery hose inlet side connection part 51 Test liquid outlet side gate valve 53 Test liquid delivery hose outlet side connection part 55 Test gate valve 57 Pressure gauge 59 Test hose Connection

Claims (6)

泡消火薬剤を貯蔵した泡原液タンクと、給水本管を流れる流水量に対して前記泡原液タンク内の泡消火薬剤を所定割合で混合する混合器とを備えてなる泡消火設備を点検する泡消火設備の点検装置であって、
点検時に前記泡原液タンクをバイパスして設置可能でかつコロイド溶液から成る試験液を貯留する仮設の試験液タンクと、前記混合器の二次側に接続する試験用配管および試験用泡放出ヘッド又はノズルと、前記混合器の二次側の圧力を調整する圧力調整手段と、前記泡消火設備を運転して前記試験用泡放出ヘッド又はノズルから放出された前記試験液と水との混合水溶液の濃度をチンダル現象による光散乱の光量を測定する光散乱式濃度測定手段とを備えたことを特徴とする泡消火設備の点検装置。 Foam for checking a foam extinguishing equipment comprising a foam stock solution tank storing a foam fire extinguishing agent and a mixer for mixing the foam extinguishing agent in the foam stock solution tank in a predetermined ratio with respect to the amount of flowing water flowing through a water supply main. An inspection device for fire fighting equipment,
A temporary test liquid tank that can be installed by bypassing the foam stock liquid tank at the time of inspection and that stores a test liquid made of a colloidal solution , a test pipe and a test foam discharge head connected to the secondary side of the mixer, or nozzles and a pressure adjusting means for adjusting the pressure of the secondary side of the mixer, and driving the foam fire-extinguishing system of a mixed aqueous solution of the test solution and water released from the test foam discharge head or nozzle An inspection apparatus for a foam fire extinguishing system, characterized by comprising a light scattering type concentration measuring means for measuring the amount of light scattering due to a Tyndall phenomenon . 泡消火薬剤を貯蔵した泡原液タンクと、給水本管を流れる流水量に対して前記泡原液タンク内の泡消火薬剤を所定割合で混合する混合器とを備えてなる泡消火設備を点検する泡消火設備の点検装置であって、
点検時に前記泡原液タンクをバイパスして設置可能でかつ電解液から成る試験液を貯留する仮設の試験液タンクと、前記混合器の二次側に接続する試験用配管および試験用泡放出ヘッド又はノズルと、前記混合器の二次側の圧力を調整する圧力調整手段と、前記泡消火設備を運転して前記試験用泡放出ヘッド又はノズルから放出された前記試験液と水との混合水溶液の濃度を測定する導電率計とを備えたことを特徴とする泡消火設備の点検装置。 Foam for checking a foam extinguishing equipment comprising a foam stock solution tank storing a foam fire extinguishing agent and a mixer for mixing the foam extinguishing agent in the foam stock solution tank in a predetermined ratio with respect to the amount of flowing water flowing through a water supply main. An inspection device for fire fighting equipment,
A temporary test liquid tank that can be installed by bypassing the foam raw liquid tank at the time of inspection and that stores a test liquid made of an electrolyte , a test pipe and a test foam discharge head connected to the secondary side of the mixer, or nozzles and a pressure adjusting means for adjusting the pressure of the secondary side of the mixer, and driving the foam fire-extinguishing system of a mixed aqueous solution of the test solution and water released from the test foam discharge head or nozzle An inspection device for foam fire extinguishing equipment, comprising a conductivity meter for measuring concentration. 前記試験液タンクは、前記給水本管に接続されて充水される一次側と、前記混合器側に接続されると共に試験液で満たされる二次側と、該二次側と前記一次側とを分離するように配置され、前記一次側に消火用水が充水されることによって前記二次側を加圧する隔膜を備えてなることを特徴とする請求項１又は２に記載の泡消火設備の点検装置。   The test liquid tank includes a primary side connected to the water supply main and filled with water, a secondary side connected to the mixer side and filled with a test liquid, the secondary side and the primary side, The foam fire-extinguishing equipment according to claim 1 or 2, further comprising a diaphragm that pressurizes the secondary side by being filled with fire-extinguishing water on the primary side. Inspection device. 泡消火薬剤を貯蔵した泡原液タンクと、給水本管を流れる流水量に対して前記泡原液タンク内の泡消火薬剤を所定割合で混合する混合器とを備えてなる泡消火設備を点検する方法であって、
前記泡原液タンクをバイパスする経路にコロイド溶液から成る試験液を貯留する仮設の試験液タンクを設置して、前記混合器の二次側の圧力状態が本設備における圧力状態と同じ状態になるようにして前記泡消火設備を運転し、
前記試験用タンクから送出された試験液が前記混合器で希釈され、該混合器の二次側から放出された混合水溶液の濃度をチンダル現象による光散乱の光量を測定する光散乱式濃度測定手段で測定することを特徴とする泡消火設備の点検方法。 A method for inspecting a foam extinguishing equipment comprising a foam stock solution tank storing a foam extinguishing agent and a mixer for mixing the foam extinguishing agent in the foam stock solution tank at a predetermined ratio with respect to the amount of flowing water flowing through a water main. Because
A temporary test solution tank for storing a test solution made of a colloidal solution is installed in a path bypassing the foam stock solution tank so that the pressure state on the secondary side of the mixer is the same as the pressure state in this equipment. To operate the foam fire extinguishing equipment,
Light scattering type concentration measuring means for measuring the amount of light scattering due to the Tyndall phenomenon by diluting the test solution sent from the test tank with the mixer and discharging the concentration of the mixed aqueous solution released from the secondary side of the mixer A method for inspecting foam fire extinguishing equipment, characterized by measuring at 泡消火薬剤を貯蔵した泡原液タンクと、給水本管を流れる流水量に対して前記泡原液タンク内の泡消火薬剤を所定割合で混合する混合器とを備えてなる泡消火設備を点検する方法であって、
前記泡原液タンクをバイパスする経路に電解液から成る試験液を貯留する仮設の試験液タンクを設置して、前記混合器の二次側の圧力状態が本設備における圧力状態と同じ状態になるようにして前記泡消火設備を運転し、
前記試験用タンクから送出された試験液が前記混合器で希釈され、該混合器の二次側から放出された混合水溶液の濃度を導電率計で測定することを特徴とする泡消火設備の点検方法。 A method for inspecting a foam extinguishing equipment comprising a foam stock solution tank storing a foam extinguishing agent and a mixer for mixing the foam extinguishing agent in the foam stock solution tank at a predetermined ratio with respect to the amount of flowing water flowing through a water main. Because
A temporary test solution tank for storing a test solution made of an electrolyte is installed in a path bypassing the foam stock solution tank so that the pressure state on the secondary side of the mixer is the same as the pressure state in this equipment. To operate the foam fire extinguishing equipment,
Inspection of foam fire extinguishing equipment, characterized in that the test liquid sent from the test tank is diluted with the mixer and the concentration of the mixed aqueous solution discharged from the secondary side of the mixer is measured with a conductivity meter. Method. 前記混合水溶液の濃度測定終了後、前記泡消火設備の運転を停止した上で、前記仮設の試験液タンクを取り外し、前記試験液タンクを取り外した後の前記バイパス経路を仮設の配管又はホースで連結し、泡原液タンクを閉止したまま再び前記泡消火設備を運転することによって、前記点検方法の実施時において試験液に暴露した部分を加圧水で洗浄することを特徴とする請求項４又は５記載の泡消火設備の点検方法。
After the concentration measurement of the mixed aqueous solution is completed, after the operation of the foam fire extinguishing equipment is stopped, the temporary test liquid tank is removed, and the bypass path after removing the test liquid tank is connected with a temporary pipe or hose. The part exposed to the test liquid is washed with pressurized water during the inspection method by operating the foam fire extinguishing equipment again with the foam stock solution tank closed. How to check foam fire extinguishing equipment.
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