JP2012130646A - Fire disaster preventing apparatus, charging sprinkler, charging sprinkler head, fire extinguishing agent sprinkling method, and charging sprinkling method - Google Patents

Fire disaster preventing apparatus, charging sprinkler, charging sprinkler head, fire extinguishing agent sprinkling method, and charging sprinkling method Download PDF

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JP2012130646A
JP2012130646A JP2011023596A JP2011023596A JP2012130646A JP 2012130646 A JP2012130646 A JP 2012130646A JP 2011023596 A JP2011023596 A JP 2011023596A JP 2011023596 A JP2011023596 A JP 2011023596A JP 2012130646 A JP2012130646 A JP 2012130646A
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spraying
charging
electrode portion
extinguishing agent
fire
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JP2012130646A5 (en
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Toshihide Tsuji
利秀 辻
Tetsuo Yoshida
哲雄 吉田
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Hochiki Corp
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Abstract

PROBLEM TO BE SOLVED: To attain a high fire-extinguishing and smoke-eliminating effect utilizing Coulomb force by securing a sufficient charging amount even with an increase in the sprinkled amount of a fire extinguishing agent.SOLUTION: In case of fire, a water-based fire extinguishing agent is pressure-supplied to a charging sprinkler head 10 installed in a protective section through piping, and the fire extinguishing agent jetted from the charging sprinkler head 10 is deflected in an optional direction to form a thin film flow 50 which is then split and separated into particle group flow 52 and sprinkled, and an external electric field is impressed to the vicinity of a splitting-separating part P of the thin film flow 50 for charging. The charging sprinkler head 10 includes a nozzle part 40 jetting the fire extinguishing agent to an external space: a fire extinguishing agent side electrode part 46 arranged inside the nozzle part 40 to contact the fire extinguishing agent; a deflector 42 deflecting the fire extinguishing agent released from the nozzle part 40, spirally to form the thin film flow 50 and then splitting and separating the thin film flow into the particle group flow 52 to be sprinkled; and a lead electrode part 48 arranged near the splitting-separating part P of the thin film flow 50.

Description

本発明は、水、海水、消火薬剤などを含有した水系の消火剤をヘッドから帯電散布する火災防災装置、帯電散布装置、帯電散布ヘッド、消火剤散布方法及び帯電散布方法に関する。
The present invention relates to a fire disaster prevention device, a charging spraying device, a charging spraying head, a fire extinguishing agent spraying method, and a charging spraying method in which an aqueous fire extinguishing agent containing water, seawater, a fire extinguishing agent, and the like is charged and sprayed from a head.

従来、火災時において、帯電散布ヘッドから散布する消火剤粒子を帯電させることにより、消火剤粒子と被消火物や煙粒子との間に働くクーロン力を利用し、燃焼物への立体的で高効率の濡らし効果や煙補足効果等を高めて、高い消火と消煙性能を得ることができることが知られている（特許文献１）。   Conventionally, in the event of a fire, by charging the extinguishing agent particles sprayed from the charging spray head, the Coulomb force acting between the extinguishing agent particles and the fire extinguisher and smoke particles is used, and the three-dimensional and high power to the combustion product It is known that a high fire extinguishing and smoke extinguishing performance can be obtained by increasing the efficiency of the wetting effect and the smoke capturing effect (Patent Document 1).

図７は従来の帯電散布ヘッドを示している。図７において、帯電散布ヘッド１００はポンプユニットからの配管に接続した立下り配管１３４の先端にヘッド本体１３６をねじ込み固定し、ヘッド本体１３６の先端内側には、絶縁部材１４１を介して、円筒状の水側電極部（消火剤側電極部）１４０が組み込まれている。   FIG. 7 shows a conventional charge spraying head. In FIG. 7, the charge spraying head 100 has a head main body 136 screwed and fixed to the tip of a falling pipe 134 connected to the pipe from the pump unit, and the inside of the tip of the head main body 136 is cylindrical via an insulating member 141. The water side electrode part (extinguishing agent side electrode part) 140 is incorporated.

水側電極部（消火剤側電極部）１４０に対しては、図示しない電圧印加部より引き出されたアースケーブル１５０が絶縁部材１４１を挿通して接続され、水側電極部１４０をアース側に接続している。   A ground cable 150 drawn from a voltage application unit (not shown) is connected to the water side electrode unit (extinguishing agent side electrode unit) 140 through the insulating member 141, and the water side electrode unit 140 is connected to the ground side. is doing.

水側電極部１４０の図示下側には噴射ノズル１３８が設けられ、水側電極部１４０側の内部に設けたノズル回転子１３８ａと、先端側に設けたノズルヘッド１３８ｂで構成される。噴射ノズル１３８は、加圧供給された消火剤を立下り配管１３４から受け、ノズル回転子１３８ａにより旋回流に変換した後にノズルヘッド１３８ｂから外部に噴射することにより消火剤を粒子群流に変換して散布する。   An injection nozzle 138 is provided on the lower side of the water-side electrode unit 140 in the figure, and includes a nozzle rotor 138a provided inside the water-side electrode unit 140 and a nozzle head 138b provided on the tip side. The injection nozzle 138 receives the pressure-supplied extinguishing agent from the falling pipe 134, converts it into a swirling flow by the nozzle rotor 138a, and then injects it from the nozzle head 138b to convert the extinguishing agent into a particle group flow. And spray.

噴射ノズル１３８に対しては、固定部材１４３を介して、絶縁性材料を用いたカバー１４２がネジ止めにより固定され、カバー１４２の下側の開口部に、リング状誘導電極部１４４を組み込んでストッパリングと共にネジ止め固定している。リング状誘導電極部１４４は、リング状本体の中央に噴射ノズル１３８からの消火剤噴射粒子を通過させる開口を形成している。リング状誘導電極部１４４に対しては、外部に設けた電圧印加部からの電極印加ケーブル４８が接続されている。   A cover 142 made of an insulating material is fixed to the injection nozzle 138 with a screw through a fixing member 143, and a ring-shaped induction electrode portion 144 is incorporated into an opening on the lower side of the cover 142 to stop the cover. Screwed together with the ring. The ring-shaped induction electrode portion 144 forms an opening through which the fire-extinguishing agent spray particles from the spray nozzle 138 pass at the center of the ring-shaped main body. An electrode application cable 48 from a voltage application unit provided outside is connected to the ring-shaped induction electrode unit 144.

帯電散布ヘッド１００から消火剤を散布する際には、水側電極部１４０を０ボルトとなるアース側とし、リング状誘導電極部１４４に対し例えば数ＫＶから十数ＫＶ程度の直流、交流又はパルス状となる印加電圧（帯電電圧）を印加する。この電圧印加によって両電極間に外部電界が生じ、噴射ノズル１３８から消火剤が粒子群流に変換される噴射過程を通じて、消火剤がこの外部電位の作用を受けて帯電され、消火剤がこの外部電界の作用を受けて帯電され、帯電された粒子群流を外部対象領域子（防護区画）に散布することができる。
When spraying the fire extinguishing agent from the charging spray head 100, the water-side electrode portion 140 is set to the ground side at 0 volts, and the ring-shaped induction electrode portion 144 has a direct current, alternating current, or pulse of about several KV to several tens of KV, for example. An applied voltage (charging voltage) is applied. By applying this voltage, an external electric field is generated between both electrodes, and the extinguishing agent is charged by the action of this external potential through the injection process in which the extinguishing agent is converted into a particle swarm from the injection nozzle 138. It is charged by the action of the electric field, and the charged particle swarm can be distributed to the external target region element (protective compartment).

特開２００９−１０６４０５号公報JP 2009-106405 A

このような従来の帯電散布（噴霧）ヘッドによる消火剤の帯電散布によれば、例えば消火剤が水の場合に消火や消煙に要する水量を、非帯電の散布ヘッドによる必要散布水量と比較して大きく減少させることができる。しかし、火災の規模が大きい場合などには、帯電散布ヘッドによる必要水量は、非帯電の散布ヘッドによる場合に比べ相当少水量となるものの、火災による発生熱量を所定以上吸収することができる最低限の総比熱と蒸発潜熱が得られる水量の散布は必要であり、水量が不足すると所望の効果を得ることができない。このように、火災規模が大きい時には、当然に水量の多い帯電散布ヘッドが必要となる。   According to such a conventional spraying of a fire extinguishing agent by means of a charged spraying (spraying) head, for example, when the fire extinguishing agent is water, the amount of water required for fire extinguishing or smoke suppression is compared with the amount of spraying water required by an uncharged spraying head. Can be greatly reduced. However, when the scale of a fire is large, the amount of water required by the charged spraying head is considerably smaller than that by an uncharged spraying head, but the minimum amount of heat generated by the fire can be absorbed. It is necessary to disperse the amount of water from which the total specific heat and latent heat of vaporization can be obtained. If the amount of water is insufficient, the desired effect cannot be obtained. Thus, when the scale of the fire is large, it is natural that a charged spraying head with a large amount of water is required.

しかし、図７に示した従来の帯電散布ヘッド１００にあっては、ヘッド本体１３６のノズル回転子１３８ａで水流に回転を与え遠心力を利用して噴射ノズル１３８から散布放射することで粒子群流に変換したフルコーン形の散布パターンを得ているが、このような従来の帯電散布にあっては、散布量の増加と共に単位水量当たりの帯電量が減少し、クーロン力による消火消煙効果を高める作用が小さくなってしまうという問題が、本願発明者の実験等によって確認されている。   However, in the conventional charging / spreading head 100 shown in FIG. 7, the particle stream is generated by rotating the water flow with the nozzle rotor 138a of the head body 136 and spraying and radiating from the spray nozzle 138 using centrifugal force. In this conventional electrification spray pattern, the charge amount per unit water volume decreases as the spray amount increases, and the fire extinguishing and smoke eliminating effect due to coulomb force is enhanced. The problem that the action is reduced has been confirmed by experiments of the present inventors.

図８は図７に示した従来の帯電散布ヘッド１００に印加する帯電用電圧を定常的に＋５ＫＶとしたときの帯電散布水の単位散布量当たりの平均帯電量をファラディーケージ法で計測した比電荷で示しており、散布量が増すほど（ヘッドが大型になるほど）平均帯電量を示す比電荷は小さい結果となっている。   FIG. 8 is a ratio of the average charge amount per unit amount of charged spray water measured by the Faraday cage method when the charging voltage applied to the conventional charge spray head 100 shown in FIG. 7 is constantly +5 KV. The specific charge indicating the average charge amount is smaller as the spray amount increases (the head becomes larger).

また、従来の水流に回転を与えて噴射ノズル１３８から遠心力を利用して散布放射する帯電散布ヘッド１００では、消火剤の噴射角度（拡がり角度）はせいぜい９０°程度であり、且つ飛距離も比較的短いことから、帯電消火剤を広範囲に散布することができないという問題もある。また、例えば図７に示した従来のフルコーン型帯電散布ヘッドによる消火剤の散布にあっては、コーン中心部において、外周部に比べ散布量が少なくなる傾向があり、散布パターンが不均一になるといった問題点もあった。   Further, in the charge spraying head 100 that applies the rotation to the conventional water flow and sprays and radiates using the centrifugal force from the spray nozzle 138, the spraying angle (spreading angle) of the extinguishing agent is about 90 ° at most and the flight distance is also at most. Since it is comparatively short, there also exists a problem that a charge extinguishing agent cannot be spread over a wide range. Further, for example, in the spraying of the extinguishing agent by the conventional full cone type charging spraying head shown in FIG. 7, the spraying amount tends to be smaller in the central part of the cone than in the outer peripheral part, and the spraying pattern becomes uneven. There was also a problem.

本発明は、散布量が増加しても十分な帯電量を確保してクーロン力を利用した高い消火消煙効果を奏すると共に均一的で広い散布範囲を確保可能な火災防災装置（設備）、帯電散布装置、帯電散布（噴霧）ヘッド、消火剤散布（噴霧）方法及び帯電散布方法を提供することを目的とする。
The present invention provides a fire disaster prevention device (equipment) that can secure a sufficient charge amount even when the spray amount is increased and has a high fire extinguishing / extinguishing effect using Coulomb force, and can ensure a uniform and wide spray range, An object is to provide a spraying device, a charge spraying (spraying) head, a fire extinguishing agent spraying (spraying) method, and a charge spraying method.

（火災防災装置）
本発明は、
水系の消火剤を、配管を介して供給する消火剤供給設備と、
防護区画に設置され、消火剤供給設備により供給された消火剤の噴射粒子に帯電させて散布する帯電散布ヘッドと、
帯電散布ヘッドに帯電電圧を印加する電圧印加部と、
を備えた火災防災装置に於いて、
帯電散布ヘッドは、
消火剤を対象空間に放出するノズルと、
ノズルの内部に配置されて消火剤に対し電気的に導通する消火剤側電極部と、
ノズルから放出された消火剤を、螺旋状に偏向して薄膜流を形成した後に分裂分離させて粒子群流に変換し散布する偏向散布部材と、
薄膜流の分裂分離部近傍に配置された誘導電極部と、
を備えたことを特徴とする。 (Fire disaster prevention equipment)
The present invention
A fire extinguisher supply facility for supplying a water-based fire extinguisher via a pipe;
A charged spraying head that is installed in a protective compartment and is charged and sprayed on fire-extinguishing agent spray particles supplied by a fire-extinguishing agent supply facility;
A voltage application unit for applying a charging voltage to the charging and spreading head;
In a fire disaster prevention device equipped with
The electrostatic spraying head
A nozzle that discharges a fire extinguishing agent into the target space;
A fire extinguishing agent side electrode portion that is disposed inside the nozzle and is electrically connected to the fire extinguishing agent;
A deflection spraying member that splits and extinguishes the fire extinguisher discharged from the nozzle into a particle group flow after being spirally deflected to form a thin film flow; and
An induction electrode portion disposed in the vicinity of the splitting separation portion of the thin film flow;
It is provided with.

ここで、偏向散布部材は、先端を頂点側として円錐螺旋状に変化する偏向面を形成したデフレクターであり、ノズルから放出された消火剤を先端に向かうにつれて偏向角が狭まる螺旋状の薄膜流に拡散偏向する。   Here, the deflection spraying member is a deflector having a deflection surface that changes in a conical spiral shape with the tip as the apex side, and the extinguishing agent discharged from the nozzle is turned into a spiral thin film flow whose deflection angle becomes narrower toward the tip. Diffuse and deflect.

誘導電極部は、導電性を有する、金属、樹脂、繊維束、ゴムのいずれか又はこれらの複合体である。誘導電極部の一部又は全部を絶縁性材料で被覆する。   The induction electrode portion is a metal, resin, fiber bundle, rubber, or a composite thereof having conductivity. A part or all of the induction electrode part is covered with an insulating material.

消火剤側電極部は、消火剤供給流路の一部またはノズルである。   The extinguishing agent side electrode portion is a part of the extinguishing agent supply flow path or a nozzle.

消火剤側電極部の電圧を所定の基準値とし、これに対し、誘導電極部に所定の帯電電圧を印加する。誘導電極部に直流状、交流状又はパルス状となる所定の帯電電圧を印加する。   The voltage of the extinguishing agent side electrode portion is set to a predetermined reference value, and a predetermined charging voltage is applied to the induction electrode portion. A predetermined charging voltage having a DC shape, an AC shape, or a pulse shape is applied to the induction electrode portion.

（消火剤の帯電散布ヘッド）
本発明は、防護区画に設置され、消火剤供給設備により供給された消火剤の噴射粒子に、電圧印加部からの帯電電圧の印加により帯電させて散布する帯電散布ヘッドに於いて、
帯電散布ヘッドは、
消火剤を対象空間に放出するノズルと、
ノズルの内部に配置されて消火剤に対し電気的に導通する消火剤側電極部と、
ノズルから放出された消火剤を、螺旋状に偏向して薄膜流を形成した後に分裂分離させて粒子群流に変換し散布する偏向散布部材と、
薄膜流の分裂分離部近傍に配置された誘導電極部と、
を備えたことを特徴とする。 (Extinguishing agent charging spray head)
The present invention, in a charging spraying head that is installed in a protective section and sprays the sprayed particles of the fire extinguisher supplied by a fire extinguishing agent supply facility by applying a charging voltage from a voltage application unit.
The electrostatic spraying head
A nozzle that discharges a fire extinguishing agent into the target space;
A fire extinguishing agent side electrode portion that is disposed inside the nozzle and is electrically connected to the fire extinguishing agent;
A deflection spraying member that splits and extinguishes the fire extinguisher discharged from the nozzle into a particle group flow after being spirally deflected to form a thin film flow; and
An induction electrode portion disposed in the vicinity of the splitting separation portion of the thin film flow;
It is provided with.

それ以外の構成は、火災防災装置の場合と基本的に同じになる。   The other configuration is basically the same as that of the fire disaster prevention device.

（火災防災装置の消火剤散布方法）
本発明は、火災防災装置の消火剤散布方法において、
火災時に水系の消火剤を、配管を介して防護区画に設置された帯電散布ヘッドに供給し、
帯電散布ヘッドから噴射した消火剤を、螺旋状に偏向して薄膜流を形成した後に分裂分離させて散布し、薄膜流の分裂分離部近傍に外部電界を印加して帯電させる、
ことを特徴とする。 (Fire extinguishing agent spraying method for fire prevention equipment)
The present invention is a fire extinguishing agent spraying method for a fire prevention device,
In the event of a fire, supply a water-based fire extinguisher to the electrostatic spraying head installed in the protective compartment via a pipe,
The fire extinguisher sprayed from the charging spraying head is spirally deflected to form a thin film flow and then split and dispersed, and an external electric field is applied near the splitting part of the thin film flow to charge it.
It is characterized by that.

ここで、帯電散布ヘッドは、
消火剤を対象空間に放出するノズルと、
ノズルの内部に配置されて消火剤に対し電気的に導通する消火剤側電極部と、
ノズルから放出された消火剤を、螺旋状に偏向して薄膜流を形成した後に分裂分離させて粒子群流に変換し散布する偏向散布部材と、
薄膜流の分裂分離部近傍に配置された誘導電極部と、
を備え、
誘導電極部と消火剤側電極部との間に電圧を加えることにより生じる外部電界を、偏向散布部材による薄膜流の分裂分離部近傍の消火剤に印加して帯電させる。 Here, the charging spray head is
A nozzle that discharges a fire extinguishing agent into the target space;
A fire extinguishing agent side electrode portion that is disposed inside the nozzle and is electrically connected to the fire extinguishing agent;
A deflection spraying member that splits and extinguishes the fire extinguisher discharged from the nozzle into a particle group flow after being spirally deflected to form a thin film flow; and
An induction electrode portion disposed in the vicinity of the splitting separation portion of the thin film flow;
With
An external electric field generated by applying a voltage between the induction electrode part and the extinguishing agent side electrode part is applied to the extinguishing agent in the vicinity of the splitting and separating part of the thin film flow by the deflecting and spreading member to be charged.

それ以外の構成は、火災防災装置の場合と基本的に同じになる。   The other configuration is basically the same as that of the fire disaster prevention device.

（帯電散布装置）
本発明は、水系の散布剤を、配管を介して供給する散布剤供給設備と、
防護区画に設置され、前記散布剤供給設備により供給された散布剤の噴射粒子に帯電させて散布する帯電散布ヘッドと、
帯電散布ヘッドに帯電電圧を印加する電圧印加部と、
を備えた帯電散布装置に於いて、
帯電散布ヘッドは、
散布剤を対象空間に放出するノズルと、
ノズルの内部に配置されて散布剤に対し電気的に導通する散布剤側電極部と、
ノズルから放出された散布剤を、螺旋状に偏向して薄膜流を形成した後に分裂分離させて粒子群流に変換し散布する偏向散布部材と、
薄膜流の分裂分離部近傍に配置された誘導電極部と、
を備えたことを特徴とする。 (Charging sprayer)
The present invention is a spraying agent supply facility for supplying an aqueous spraying agent via a pipe,
A charged spraying head installed in a protective compartment and charged by spraying spray particles of spraying agent supplied by the spraying agent supply facility;
A voltage application unit for applying a charging voltage to the charging and spreading head;
In the electrostatic spraying device equipped with
The electrostatic spraying head
A nozzle that discharges the spray agent into the target space;
A spraying agent side electrode portion which is arranged inside the nozzle and is electrically connected to the spraying agent;
A deflecting spraying member for deflecting the spraying agent discharged from the nozzle in a spiral to form a thin film flow, and then splitting and separating into a particle group flow and spraying;
An induction electrode portion disposed in the vicinity of the splitting separation portion of the thin film flow;
It is provided with.

それ以外の特徴は前述した火災防災装置と基本的に同じになる。ただし、火災防災装置における消火剤及び消火剤側電極部を、散布剤及び散布剤側電極部と読み替える。   Other features are basically the same as those of the fire prevention device described above. However, the extinguishing agent and the extinguishing agent side electrode part in the fire disaster prevention device are read as the spraying agent and the spraying agent side electrode part.

（散布剤の帯電散布ヘッド）
本発明は、防護区画に設置され、散布剤供給設備により供給された散布剤の噴射粒子に、電圧印加部からの帯電電圧の印加により帯電させて散布する帯電散布ヘッドに於いて、
散布剤を対象空間に放出するノズルと、
ノズルの内部に配置されて散布剤に対し電気的に導通する散布剤側電極部と、
ノズルから放出された散布剤を、螺旋状に偏向して薄膜流を形成した後に分裂分離させて粒子群流に変換し散布する偏向散布部材と、
薄膜流の分裂分離部近傍に配置された誘導電極部と、
を備えたことを特徴とする。 (Spraying agent spraying head)
The present invention is a charging spray head that is installed in a protective compartment and sprays and sprays spray particles of a spray agent supplied by a spray agent supply facility by applying a charging voltage from a voltage application unit.
A nozzle that discharges the spray agent into the target space;
A spraying agent side electrode portion which is arranged inside the nozzle and is electrically connected to the spraying agent;
A deflecting spraying member for deflecting the spraying agent discharged from the nozzle in a spiral to form a thin film flow, and then splitting and separating into a particle group flow and spraying;
An induction electrode portion disposed in the vicinity of the splitting separation portion of the thin film flow;
It is provided with.

それ以外の特徴は前述した火災防災装置と基本的に同じになる。ただし、火災防災装置における消火剤及び消火剤側電極部を、散布剤及び散布剤側電極部と読み替える。   Other features are basically the same as those of the fire prevention device described above. However, the extinguishing agent and the extinguishing agent side electrode part in the fire disaster prevention device are read as the spraying agent and the spraying agent side electrode part.

（帯電散布装置の帯電散布方法）
本発明は、帯電散布装置の帯電散布方法に於いて、
水系の散布剤を、配管を介して防護区画に設置された帯電散布ヘッドに供給し、
帯電散布ヘッドから噴射した散布剤を、円錐状に偏向して薄膜流を形成した後に分裂分離させて散布し、薄膜流の分裂分離部近傍に外部電界を印加して帯電させる、
ことを特徴とする。 (Charging spraying method of charging spraying device)
The present invention relates to a charging spraying method for a charging spraying device,
Supply the water-based spraying agent to the electrified spraying head installed in the protective compartment via the pipe,
The spraying agent sprayed from the electrostatic spraying head is deflected into a conical shape to form a thin film flow, and then split and dispersed, and an external electric field is applied near the splitting part of the thin film flow to charge it.
It is characterized by that.

ここで、帯電散布ヘッドは、
散布剤を対象空間に放出するノズルと、
ノズルの内部に配置されて散布剤に対し電気的に導通する散布剤側電極部と、
ノズルから放出された散布剤を、螺旋状に偏向して薄膜流を形成した後に分裂分離させて粒子群流に変換し散布する偏向散布部材と、
薄膜流の分裂分離部近傍に配置された誘導電極部と、
を備え、
誘導電極部と散布剤側電極部との間に電圧を加えることにより生じる外部電界を、偏向散布部材による薄膜流の分裂分離部近傍の散布剤に印加して帯電させる。 Here, the charging spray head is
A nozzle that discharges the spray agent into the target space;
A spraying agent side electrode portion which is arranged inside the nozzle and is electrically connected to the spraying agent;
A deflecting spraying member for deflecting the spraying agent discharged from the nozzle in a spiral to form a thin film flow, and then splitting and separating into a particle group flow and spraying;
An induction electrode portion disposed in the vicinity of the splitting separation portion of the thin film flow;
With
An external electric field generated by applying a voltage between the induction electrode part and the spraying agent side electrode part is applied to the spraying agent near the splitting separation part of the thin film flow by the deflecting spraying member to be charged.

それ以外の特徴は前述した火災防災装置と基本的に同じになる。ただし、火災防災装置における消火剤及び消火剤側電極部を、散布剤及び散布剤側電極部と読み替える。
Other features are basically the same as those of the fire prevention device described above. However, the extinguishing agent and the extinguishing agent side electrode part in the fire disaster prevention device are read as the spraying agent and the spraying agent side electrode part.

本発明によれば、帯電散布ヘッドのノズルから噴出した消火剤を偏向散布部材となるデフレクターによって螺旋状に偏向して薄膜流を形成し、薄膜流の分裂分離部近傍に誘導電極を配置して外部電界を印加し帯電させることで、散布量が多いヘッドでありながら、帯電量の大きな帯電散布を行うことができる。   According to the present invention, the fire extinguishing agent ejected from the nozzle of the charging spray head is spirally deflected by the deflector serving as a deflecting spray member to form a thin film flow, and the induction electrode is disposed in the vicinity of the splitting portion of the thin film flow. By applying an external electric field and charging, it is possible to carry out charging spraying with a large charge amount even though the head has a large spraying amount.

また、ノズルから噴射した消火剤を螺旋状に広がる薄膜流に偏向する偏向散布部材の偏向形状の設定により、ノズルから放出された消火剤をノズル放出直後は広角に拡散偏向し、先端に向かうにつれて偏向角が狭まる螺旋状の薄膜流に拡散偏向することで、従来に比べ広角の帯電散布が容易に実現でき、散水量の増加と相俟って十分な飛距離が得られ、更に広範囲に帯電消火剤を散布してクーロン力を利用した高い消火消煙効果を得ることができる。
Also, by setting the deflection shape of the deflecting spray member that deflects the fire extinguisher sprayed from the nozzle into a spirally spreading thin film flow, the fire extinguisher discharged from the nozzle is diffused and deflected to a wide angle immediately after the nozzle is released, and as it goes to the tip By diffusing and deflecting into a spiral thin film flow with a narrow deflection angle, wide-angle charging can be easily achieved compared to conventional methods, and a sufficient flight distance can be obtained in combination with an increase in the amount of water sprayed. A high fire extinguishing and smoke eliminating effect using Coulomb force can be obtained by spraying a fire extinguisher.

本発明による火災防災装置の実施形態を示した説明図Explanatory drawing which showed embodiment of the fire disaster prevention apparatus by this invention 図１の防護エリアＡを取り出して示した説明図Explanatory drawing which took out and showed the protection area A of FIG. 本発明による帯電散布ヘッドの実施形態を示した断面図Sectional drawing which showed embodiment of the charge distribution head by this invention 図２の帯電散布ヘッドを天井設置状態に於ける下側（床側）から見た説明図Explanatory drawing which looked at the electrification spraying head of FIG. 2 from the lower side (floor side) in the ceiling installation state 本実施形態による散布量と比電荷の関係を従来ヘッドと対比して示したグラフ図A graph showing the relationship between the spray amount and specific charge according to the present embodiment in comparison with the conventional head 本実施形態の帯電散布ヘッドに供給する印加電圧を示したタイムチャート図The time chart which showed the applied voltage supplied to the charge distribution head of this embodiment 従来の帯電散布ヘッドを示した断面図Sectional view showing a conventional electrostatic spraying head 従来の帯電散布ヘッドによる散布量と比電荷の関係を示したグラフ図A graph showing the relationship between the amount of spraying by a conventional charging spraying head and the specific charge

図１は本発明による火災防災装置（火災防災設備）の実施形態を示した説明図である。図１において、建物内の例えばコンピュータルームなどの防護エリアＡ及びＢの天井側には、螺旋状の帯電散布を行う帯電散布ヘッド１０が設置されており、これらの帯電散布ヘッド１０から、それぞれの防護エリアに対し消火剤散布を行うようにしている。   FIG. 1 is an explanatory view showing an embodiment of a fire disaster prevention device (fire disaster prevention equipment) according to the present invention. In FIG. 1, on the ceiling side of protective areas A and B such as a computer room in a building, a charging spraying head 10 that performs spiral charging spraying is installed. Fire extinguishing agent is sprayed on the protected area.

消火剤貯留・供給設備として機能する水源１４に対し設置されたポンプユニット１２から手動弁（仕切弁）１３を介して配管１６が接続され、配管１６は分岐後に調圧弁３０及び自動開閉弁３２を介して、防護エリアＡ，Ｂのそれぞれに設置した帯電散布ヘッド１０に接続している。水源１４は水、海水、或いはその他水系の消火剤を貯留している。   A pipe 16 is connected via a manual valve (gate valve) 13 from a pump unit 12 installed to a water source 14 that functions as a fire extinguisher storage / supply facility. The pipe 16 is connected to a pressure regulating valve 30 and an automatic opening / closing valve 32 after branching. And connected to the charging and spreading head 10 installed in each of the protection areas A and B. The water source 14 stores water, seawater, or other water-based fire extinguishing agents.

防護エリアＡ，Ｂのそれぞれには、帯電散布ヘッド１０からの消火剤散布を制御する入力信号源となる専用火災検出器１８が設置されている。また防護エリアＡ，Ｂのそれぞれに対しては連動制御中継装置２０が設けられ、信号線に専用火災検出器１８が接続されている。連動制御中継装置２０には更に帯電散布ヘッド１０からの散布制御を手動操作で行うための手動操作箱２２が接続されている。   In each of the protection areas A and B, a dedicated fire detector 18 serving as an input signal source for controlling the extinguishing agent spraying from the charging spraying head 10 is installed. Further, an interlocking control relay device 20 is provided for each of the protection areas A and B, and a dedicated fire detector 18 is connected to the signal line. The interlock control relay device 20 is further connected with a manual operation box 22 for performing spray control from the charge spray head 10 by manual operation.

連動制御中継装置２０に対しては、このように専用火災検出器１８及び手動操作箱２２からの信号線が接続されると共に、帯電散布ヘッド１０に帯電電圧（帯電駆動電圧）を印加制御するための信号線、及び自動開閉弁３２を開閉制御するための信号線が引き出されている。   The interlock control relay device 20 is connected to the signal lines from the dedicated fire detector 18 and the manual operation box 22 in this way, and controls the application of a charging voltage (charging driving voltage) to the charging spraying head 10. And a signal line for controlling opening / closing of the automatic opening / closing valve 32 are drawn out.

更に防護エリアＡには自動火災報知設備の火災感知器２６が設置され、自動火災報知設備の受信機２８から引き出された感知器回線に接続している。なお、防護エリアＢについては自動火災報知設備の火災感知器２６を設けていないが、必要に応じて設けてもよいことはもちろんである。   Further, a fire detector 26 of the automatic fire alarm facility is installed in the protection area A, and is connected to a sensor line drawn from the receiver 28 of the automatic fire alarm facility. In addition, although the fire detector 26 of the automatic fire alarm facility is not provided in the protection area B, it is a matter of course that it may be provided as necessary.

防護エリアＡ，Ｂに対応して設置した連動制御中継装置２０は、一方でシステム監視制御盤２４に信号線接続されている。システム監視制御盤２４には自動火災報知設備の受信機２８も接続されている。更にシステム監視制御盤２４はポンプユニット１２を信号線接続し、ポンプユニット１２のポンプ起動停止を制御するようになっている。   On the other hand, the interlock control relay device 20 installed corresponding to the protection areas A and B is connected to the system monitoring control panel 24 by a signal line. A receiver 28 of an automatic fire alarm facility is also connected to the system monitoring control panel 24. Further, the system monitoring control panel 24 connects the pump unit 12 to the signal line to control the pump start / stop of the pump unit 12.

図２は図１の防護エリアＡを取り出して示した説明図である。防護エリアＡの天井側には帯電散布ヘッド１０が設置されている。帯電散布ヘッド１０が接続された天井側配管（図３の立下がり配管３４）は、図１に示したポンプユニット１２からの配管１６に、調圧弁３０及び自動開閉弁３２を介して接続されている。   FIG. 2 is an explanatory view showing the protection area A in FIG. On the ceiling side of the protection area A, a charging spray head 10 is installed. The ceiling side pipe (falling pipe 34 in FIG. 3) to which the charging spraying head 10 is connected is connected to the pipe 16 from the pump unit 12 shown in FIG. 1 via the pressure regulating valve 30 and the automatic opening / closing valve 32. Yes.

また帯電散布ヘッド１０の近傍上部には電圧印加部１５が設置されており、後の説明で明らかにするように、帯電散布ヘッド１０に所定の電圧を印加して、帯電散布ヘッド１０から螺旋状に偏向して噴射放出される消火剤を帯電させて散布できるようにしている。また防護エリアＡの天井側には専用火災検出器１８が設置され、併せて自動火災報知設備の火災感知器２６も接続されている。なお、電圧印加部１５は帯電散布ヘッド１０と一体に設けてもよい。   In addition, a voltage application unit 15 is installed in the upper part of the vicinity of the charging / spreading head 10, and as will be clarified in the following description, a predetermined voltage is applied to the charging / spreading head 10 to form a spiral shape. The fire extinguisher which is jetted and discharged while being charged is charged and sprayed. A dedicated fire detector 18 is installed on the ceiling side of the protection area A, and a fire detector 26 of an automatic fire alarm facility is also connected. The voltage application unit 15 may be provided integrally with the charging / spreading head 10.

図３は図１及び図２に示した帯電散布ヘッド１０の実施形態であり、その縦断面を示している。また図４には、帯電散布ヘッド１０を天井設置状態で下側（床側）から見た説明図を示す。   FIG. 3 shows an embodiment of the charging and spreading head 10 shown in FIGS. 1 and 2, and shows a longitudinal section thereof. FIG. 4 is an explanatory view of the charging / spreading head 10 as viewed from the lower side (floor side) in a ceiling installation state.

図３及び図４において、帯電散布ヘッド１０は上下に分割した金属製のボディ３６，３８をボルト３７で連結固定しており、ポンプユニット１２からの配管１６に接続した立下り配管３４の先端にボディ３６をねじ込み固定している。ボディ３６，３８の内部流路には円筒状の水側（消火剤側）電極部４６が絶縁性のスペーサ４４を介して組み込まれている。消火剤側電極部４６は導電性を持つ金属材料で作られ、更に絶縁材料で被覆されており、金属製のボディ３６，３８に対し電気的に絶縁されている。   In FIG. 3 and FIG. 4, the charging and spreading head 10 has metal bodies 36 and 38 that are divided into upper and lower parts connected and fixed by bolts 37, and is attached to the tip of a falling pipe 34 connected to the pipe 16 from the pump unit 12. The body 36 is fixed by screwing. Cylindrical water side (extinguishing agent side) electrode portions 46 are incorporated in the internal flow paths of the bodies 36 and 38 via insulating spacers 44. The extinguishing agent side electrode portion 46 is made of a conductive metal material, and further covered with an insulating material, and is electrically insulated from the metal bodies 36 and 38.

消火剤側電極部４６に対しては、図２に示したように、外部近傍に設置している電圧印加部１５から引き出されたアースケーブル５４が接続されている。このアースケーブル５４の接続で、消火剤側電極部４６を接地するようにしている。   As shown in FIG. 2, the extinguishing agent side electrode unit 46 is connected to a ground cable 54 drawn from the voltage application unit 15 installed near the outside. The extinguishing agent side electrode portion 46 is grounded by the connection of the ground cable 54.

下部に配置したボディ３８の内部流路先端には絶縁性のスペーサ４４を介してノズル部４０が形成される。ノズル部４０はノズル穴（ノズル開口）４１を形成すると共にノズル穴４１からの消火剤の噴出側に偏向散布部材として機能するデフレクター４２を一体に設けている。   A nozzle portion 40 is formed through an insulating spacer 44 at the tip of the internal flow path of the body 38 disposed in the lower portion. The nozzle section 40 has a nozzle hole (nozzle opening) 41 and a deflector 42 that functions as a deflecting and spreading member on the fire extinguishing agent ejection side from the nozzle hole 41.

デフレクター４２は、図示の如く先端側を頂点とする略円錐螺旋状（ヘリカル状）に形成され、この螺旋に沿って偏向面を形成しており、ノズル穴４１から噴出された消火剤を偏向面に沿って偏向し、その結果螺旋状に拡散する薄膜流５０に変換して放射（散布）する。ここで、デフレクタ−４２は、その偏向作用による消火剤薄膜流５０の放射面傾きが、ノズル穴側からデフレクター４２の先端側に向かうにつれて増加するように形成されている（図示参照）。   The deflector 42 is formed in a substantially conical spiral shape (helical shape) whose apex is the apex as shown in the figure, and forms a deflection surface along this spiral, and the extinguishing agent ejected from the nozzle hole 41 is deflected. Are converted into a thin film flow 50 which is deflected along the line and consequently diffuses in a spiral shape. Here, the deflector 42 is formed so that the radiation surface inclination of the extinguishing agent thin film flow 50 due to the deflection action increases from the nozzle hole side toward the tip end side of the deflector 42 (see the drawing).

このためデフレクター４２により拡散偏向された薄膜流５０は、ノズル穴４１の直後では広角に放射され、先端に向かうにつれて放射角が小さくなり、これによってデフレクター４２から防護区画の広い範囲に向けて均一的に消火剤を散布することができる。   For this reason, the thin film flow 50 diffused and deflected by the deflector 42 is radiated at a wide angle immediately after the nozzle hole 41, and the radiation angle becomes smaller toward the tip, thereby being uniform from the deflector 42 to a wide range of the protection section. Can be sprayed with fire extinguishing agent.

デフレクター４２により螺旋状に拡散偏向された薄膜流５０は、分裂分離部Ｐ付近から分裂分離して粒子化し、粒子群流５２となって放射され、模式的に示した散布パターン６０のように広範囲を均一的にカバーするように散布される。   The thin film flow 50 diffused and deflected in a spiral shape by the deflector 42 is split and separated from the vicinity of the splitting and separating portion P, and is radiated as a particle group flow 52, which is a wide range like a spray pattern 60 schematically shown. It is sprayed to cover evenly.

ボディ３８の下部には図４にも示すように電極支持部４５が帯電散布ヘッド１０の側方に向かって張り出すように設けられており、電極支持部４５に固定支持した誘導電極部４８を帯電散布ノズル１０の散布空間側に位置させている。誘導電極部４８は電極支持部４５を起点に、先端側を頂点として略円錐螺旋状（円錐ヘリカル状）に電極を形成しており、この電極はデフレクター４２から螺旋状に拡散偏向された薄膜流５０が分裂分離して粒子群流５２となる各分離分裂点Ｐの近傍となるように配置している。   As shown in FIG. 4, an electrode support portion 45 is provided on the lower portion of the body 38 so as to protrude toward the side of the charging and spreading head 10, and an induction electrode portion 48 fixedly supported on the electrode support portion 45 is provided. The charging spray nozzle 10 is positioned on the spraying space side. The induction electrode portion 48 forms an electrode in a substantially conical spiral shape (conical helical shape) with the electrode support portion 45 as a starting point and the tip side as an apex, and this electrode is a thin film flow diffused and deflected spirally from the deflector 42. 50 are arranged so as to be in the vicinity of each separation and split point P that is split and separated into a particle group flow 52.

また螺旋状の誘導電極部４８はデフレクター４２に設けた螺旋状の偏向面に対し、略同じ位相関係となるように配置されている。更に誘導電極部４８は導電性の部材で形成されると共に絶縁材料で被覆されており、更に金属製のボディ３８及び散布される消火剤に対し電気的に絶縁されている。   Further, the spiral induction electrode portion 48 is arranged so as to have substantially the same phase relationship with respect to the spiral deflection surface provided on the deflector 42. Further, the induction electrode portion 48 is formed of a conductive member and is covered with an insulating material, and is further electrically insulated from the metal body 38 and the sprayed fire extinguishing agent.

また誘導電極部４８に対しては、図２に示した電圧印加部１５から引き出された電圧印加ケーブル５２が接続されている。   Further, a voltage application cable 52 drawn from the voltage application unit 15 shown in FIG. 2 is connected to the induction electrode unit 48.

なお図３では、螺旋状の誘導電極部４８を例えば薄膜流５０の螺旋状に連続分布する分裂分離部Ｐの上流方向に１０mm以下、下流方向に３０mm以下、また薄膜流５０の表面から２０mm以下となる領域内に配置している。   In FIG. 3, the spiral induction electrode portion 48 is, for example, 10 mm or less in the upstream direction of the split separation portion P continuously distributed in a spiral shape of the thin film flow 50, 30 mm or less in the downstream direction, and 20 mm or less from the surface of the thin film flow 50. It is arranged in the area.

また、誘導電極部４８は必ずしも図示の如く螺旋状に形成する必要は無く、デフレクター４２により偏向されて拡散放射される消火剤粒子を帯電させ得る形状のものであればよい。また、この目的を達成できる限り、誘導電極部４８の寸法や配置についても任意に設定できる。   In addition, the induction electrode portion 48 does not necessarily have to be formed in a spiral shape as shown in the drawing, and may have a shape capable of charging the extinguishing agent particles deflected and diffused by the deflector 42. As long as this object can be achieved, the size and arrangement of the induction electrode portion 48 can be arbitrarily set.

ここで、本実施形態の帯電散布ヘッド１０に使用している消火剤側電極部４６及び誘導電極部４８としては、導電性を有する金属以外に、導電性を有する樹脂、繊維束、ゴム等であってもよく、更にこれらを組合せた複合体であってもよい。   Here, as the extinguishing agent side electrode portion 46 and the induction electrode portion 48 used in the charging and spreading head 10 of the present embodiment, in addition to conductive metal, conductive resin, fiber bundle, rubber, etc. It may also be a composite that combines these.

帯電散布ヘッド１０から消火剤を散布する場合には、図２に示した電圧印加部１５が図１に示す連動制御中継装置２０からの制御信号により動作し、消火剤側電極部４６を基準電位（アース）側とし、誘導電極部４８に対し例えば数ＫＶから十数ＫＶ程度の直流状（定常）印加電圧、交流又はパルス状となる印加電圧を印加する。発明者の実験によれば、印加電圧は２０ＫＶを超えない範囲とするのが好ましいが、これに限定されるものではない。   When spraying the fire extinguishing agent from the charging spraying head 10, the voltage application unit 15 shown in FIG. 2 is operated by the control signal from the interlock control relay device 20 shown in FIG. 1, and the fire extinguishing agent side electrode unit 46 is connected to the reference potential. On the (earth) side, a DC (steady) applied voltage of about several KV to several tens of KV, for example, an applied voltage that is AC or pulsed is applied to the induction electrode portion 48. According to the inventor's experiment, the applied voltage is preferably in a range not exceeding 20 KV, but is not limited thereto.

このように水側電極部４６と誘導電極部４８との間に例えば数ＫＶとなる電圧が加えられると、この電圧印加によって外部電界が生じ、この作用により、ノズル部４０から放出した消火剤がデフレクター４２の螺旋状の偏向面に沿って拡散偏向された薄膜流５０となり、薄膜流５０が分裂分離部Ｐ付近から分裂分離を始めて粒子郡流５８に変換される過程を通じて帯電され、散布パターン６０として模式的に図示するように、帯電された噴射粒子をノズル部４０の直下からは散布領域における帯電散布ヘッド１０の側方側に向けて広角に、デフレクター４２の先端側からは直下側に向けて狭域に散布することができ、全体として広い範囲に対して均一的に散布することができる。   Thus, when a voltage of, for example, several KV is applied between the water-side electrode portion 46 and the induction electrode portion 48, an external electric field is generated by this voltage application, and this action causes the extinguishing agent released from the nozzle portion 40 to The thin film flow 50 is diffused and deflected along the helical deflecting surface of the deflector 42, and the thin film flow 50 is charged through the process of starting splitting separation from the vicinity of the splitting separation portion P and being converted into the particle group flow 58. As shown schematically, the charged spray particles are directed from a position directly below the nozzle portion 40 toward the side of the charged spraying head 10 in the spraying area, and from the front end side of the deflector 42 to a position directly below. Can be sprayed in a narrow area, and can be sprayed uniformly over a wide range as a whole.

なお、ノズル部４０から噴射した消火剤をデフレクター４２で偏向する場合、剥離や飛散等により消火剤の一部が誘導電極部４８に接触する場合があるが、誘導電極部４８は絶縁材料で被覆されているため、消火剤が接触して短絡や電荷の中和が問題になることなく、消火剤に帯電させることができる。   When the fire extinguisher sprayed from the nozzle portion 40 is deflected by the deflector 42, a part of the fire extinguisher may come into contact with the induction electrode portion 48 due to peeling or scattering, but the induction electrode portion 48 is covered with an insulating material. Therefore, the fire extinguisher can be charged without contact with the fire extinguisher and without causing a problem of short circuit or charge neutralization.

図５はある条件における散布量と比電荷の関係を、デフレクターを設けた本実施形態による帯電散布ヘッドとデフレクターを設けない従来の帯電散布ヘッドの場合とで対比した例を模式的に示したグラフ図である。   FIG. 5 is a graph schematically showing an example in which the relationship between the spray amount and specific charge under a certain condition is compared between the charge spray head according to the present embodiment provided with a deflector and the conventional charge spray head without a deflector. FIG.

図５において、特性Ｂは従来の帯電散布ヘッドの特性であり、定常的な帯電電圧を印加した場合である。単位時間当りの散布量の増加に対し、帯電量を示す比電荷が大きく減少しているが、これに対し本実施形態の帯電散布ヘッド１０にあっては、例えば特性Ａのように、散布量の増加に対して比電荷の減少が少ない。図５の例では、本実施形態のノズルの、散布量７［リットル／min］における比電荷（特性Ａのａ点）は、従来ノズルの散布量１．５［リットル／min］における比電荷（特性Ｂのｂ点）に相当するレベルとなっている。   In FIG. 5, a characteristic B is a characteristic of a conventional charging / spreading head, and is when a steady charging voltage is applied. The specific charge indicating the charge amount greatly decreases with the increase in the spray amount per unit time. On the other hand, in the charge spray head 10 of the present embodiment, the spray amount as shown in the characteristic A, for example. There is little decrease in specific charge with respect to increase in In the example of FIG. 5, the specific charge (point “a” of characteristic A) of the nozzle of the present embodiment at a spray rate of 7 [liter / min] is the specific charge of the conventional nozzle at a spray rate of 1.5 [liter / min]. The level corresponds to the point B of the characteristic B).

このように、本実施形態の帯電散布ヘッド１０によれば、従来の帯電散布ヘッドにおける、散布量増加に伴い単位水量当りの帯電量が大きく減少してしまうという問題を解決し、高効率で帯電させることができるので、散布量の多い帯電散布ヘッドでありながら、高効率の帯電散布を行うことができる。   As described above, according to the charge spraying head 10 of the present embodiment, the problem that the charge amount per unit water amount greatly decreases as the spraying amount increases in the conventional charge spraying head is solved, and charging is performed with high efficiency. Therefore, it is possible to perform highly efficient charging spraying while the charging spraying head has a large spraying amount.

また、ノズル部４０から噴射した消火剤を螺旋状の偏向面をもつデフレクター４２により広範囲にわたる偏向角をもつ薄膜流５０を経て粒子群流５２に変換して散布するので、従来の帯電散布ヘッドに比べ、均一で広角の帯電散布が容易に実現でき、帯電ロスを抑えつつ散水量を増加させることができるため十分な飛距離が得られ、広範囲に帯電消火剤を散布して高い消火消煙効果を得ることができる。   Further, the fire extinguisher sprayed from the nozzle unit 40 is converted into a particle group flow 52 through a thin film flow 50 having a wide range of deflection angles by a deflector 42 having a helical deflecting surface, and is thus sprayed. Compared to this, uniform and wide-angle charge spraying can be easily realized, and the amount of water spray can be increased while suppressing charging loss, so a sufficient flight distance can be obtained. Can be obtained.

次に図１の実施形態における火災防災設備の監視動作を説明する。いま、防護エリアＡにおいて火災Ｆが発生したとすると、例えば専用火災検出器１８が火災を検出して連動制御中継装置２０を介しシステム監視制御盤２４に火災検出信号を送る。   Next, the monitoring operation of the fire disaster prevention facility in the embodiment of FIG. 1 will be described. Assuming that a fire F occurs in the protection area A, for example, the dedicated fire detector 18 detects a fire and sends a fire detection signal to the system monitoring control panel 24 via the interlock control relay device 20.

システム監視制御盤２４は防護エリアＡに設置している専用火災検出器１８からの火災検出信号を受信するとポンプユニット１２を起動し、水源１４から消火用水を汲み上げてポンプユニット１２により加圧し、配管１６に供給する。   When the system monitoring control panel 24 receives the fire detection signal from the dedicated fire detector 18 installed in the protection area A, the pump unit 12 is activated, the fire-extinguishing water is pumped up from the water source 14 and pressurized by the pump unit 12, and piping 16 is supplied.

同時にシステム監視制御盤２４は、防護エリアＡに対応して設けている連動制御中継装置２０に対し帯電散布ヘッド１０の起動信号を出力する。この起動信号を受けて、連動制御中継装置２０は自動開閉弁３２を開放動作し、これによって、調圧弁３０により調圧された一定圧力の水系消火剤が、開放した自動開閉弁３２を介して帯電散布ヘッド１０に供給され、図２に取り出して示すように、帯電散布ヘッド１０から防護エリアＡに、円錐螺旋状（ヘリカル状）に放出された噴射粒子（群）として散布されることになる。   At the same time, the system monitoring control panel 24 outputs an activation signal for the charging and spreading head 10 to the interlock control relay device 20 provided corresponding to the protection area A. In response to this activation signal, the interlock control relay device 20 opens the automatic opening / closing valve 32, whereby the water-based fire extinguisher having a constant pressure regulated by the pressure regulating valve 30 passes through the opened automatic opening / closing valve 32. As shown in FIG. 2, it is supplied to the charging spraying head 10 and sprayed as spray particles (groups) discharged from the charging spraying head 10 into the protection area A in a conical spiral shape (helical shape). .

このとき連動制御中継装置２０は、図２に示す帯電散布ヘッド１０の近傍に設けている電圧印加部１５に対し起動信号を送り、この起動信号を受けて電圧印加部１５は、帯電散布ヘッド１０に対し例えば基準電位（アース）に対し数ＫＶとなる直流状、交流状又はパルス状となる印加電圧を供給する。   At this time, the interlock control relay device 20 sends an activation signal to the voltage application unit 15 provided in the vicinity of the charge distribution head 10 shown in FIG. 2, and the voltage application unit 15 receives the activation signal, and the voltage application unit 15 receives the activation signal. For example, a DC, AC, or pulsed applied voltage of several KV is supplied with respect to a reference potential (ground).

このため図３及び図４に示した帯電散布ヘッド１０にあっては、ノズル部４０から加圧された水系の消火剤を噴射してデフレクター４２により偏向した螺旋状の薄膜流５０を粒子群流５２に変換して散布する際に、デフレクター４２の外側に配置している螺旋状の誘導電極部４８側に例えば消火剤側電極部４６の基準電位（アース）に対し数ＫＶの電圧が所定パターンで印加され、この電圧印加により生じた外部電界を、分裂分離部Ｐ付近で消火剤粒子に印加することにより帯電させて散布することができる。   For this reason, in the charging / spreading head 10 shown in FIGS. 3 and 4, the spiral thin film flow 50, which is deflected by the deflector 42 by jetting a water-based fire extinguisher pressurized from the nozzle portion 40, is a particle group flow. For example, a voltage of several KV is applied to the spiral induction electrode portion 48 disposed outside the deflector 42 with respect to the reference potential (ground) of the extinguishing agent side electrode portion 46 in a predetermined pattern. The external electric field generated by this voltage application can be charged and dispersed by applying it to the extinguishing agent particles in the vicinity of the splitting separation part P.

図２に示す帯電散布ヘッド１０から火災Ｆが発生している防護エリアＡに向けて噴射された消火剤粒子はこのようにして帯電しているため、帯電によるクーロン力により火災Ｆの燃焼源に効率良く付着する。また回り込み効果により燃焼剤のあらゆる面に対して消火剤粒子の付着が起こり、従来のように非帯電の消火剤粒子を散布した場合に比べ、燃焼剤に対する濡らし効果が大幅に増大し、高い消火能力が発揮される。   Since the extinguishing agent particles sprayed from the electrification spraying head 10 shown in FIG. 2 toward the protection area A where the fire F is generated are charged in this manner, the Coulomb force due to charging causes the fire F to become a combustion source. Adhering efficiently. In addition, the wraparound effect causes the extinguishing agent particles to adhere to all surfaces of the combusting agent, and compared to the case where uncharged extinguishing agent particles are sprayed as in the past, the wetting effect on the combusting agent is greatly increased, resulting in high fire extinguishing Ability is demonstrated.

また、燃焼に伴い発生する煙（火災煙）に対しても同様にして消火剤が付着して落下するため、高い消煙効果が得られる。つまり、このような本実施形態における消煙効果は、従来のような非帯電消火剤粒子の散布による消煙効果が消火剤粒子と煙粒子との確率的な衝突による捕捉作用であることに対し、本実施形態にあっては、帯電散布している消火剤粒子のクーロン力により、反対極性の帯電状態にある煙粒子を捕集し、これによって高い消煙作用が発揮される。   Moreover, since a fire extinguisher adheres and falls similarly with respect to the smoke (fire smoke) generated with combustion, a high smoke extinguishing effect is obtained. In other words, the smoke extinguishing effect in the present embodiment is such that the smoke extinguishing effect by spraying the non-charged extinguishing agent particles as in the prior art is a trapping action by stochastic collision between the extinguishing agent particles and the smoke particles. In the present embodiment, smoke particles in a charged state of opposite polarity are collected by the Coulomb force of the extinguishing agent particles that are charged and dispersed, thereby exhibiting a high smoke extinguishing action.

更に図３及び図４の帯電散布ヘッド１０にあっては、例えば消火剤側電極部４６を０ボルト（基準電位）とし、誘導電極部４８に対しプラスの電圧を直流的或いはパルス的に印加したような場合には、散布される消火剤粒子はマイナス電荷に帯電することとなる。   3 and 4, for example, the extinguishing agent side electrode portion 46 is set to 0 volt (reference potential), and a positive voltage is applied to the induction electrode portion 48 in a DC or pulse manner. In such a case, the sprayed fire extinguishing agent particles are negatively charged.

このようにマイナスの電荷のみに同極性帯電した消火剤粒子を散布した場合には、散布空間中で消火剤粒子間に相互に斥力が働き、これによって消火剤粒子が衝突会合して成長落下する確率が小さくなり、空間中に滞留する消火剤粒子の密度が高くなるため、高い消火能力、消煙能力が発揮される。即ち、消火剤粒子同士を同極性に帯電させることで、粒子間に働く斥力により対流粒子密度を低下させることなく散布することができ、高い消煙消火能力が発揮される。   When fire extinguisher particles charged with the same polarity are sprayed only on the negative charge in this way, repulsive force acts between the fire extinguisher particles in the spray space, thereby causing the fire extinguisher particles to collide and grow and fall. Since the probability is reduced and the density of the extinguishing agent particles staying in the space is increased, high fire extinguishing ability and smoke extinguishing ability are exhibited. That is, by extinguishing the extinguishing agent particles with the same polarity, they can be dispersed without lowering the convective particle density due to repulsive force acting between the particles, and a high smoke extinguishing and extinguishing ability is exhibited.

なお、帯電の極性は、散布対象によって適宜選択することができ、単純には、例えば散布対象の極性が概ねプラスである場合には、消火剤粒子をマイナスの極性に帯電させるといった制御を行う。   The polarity of charging can be appropriately selected depending on the object to be sprayed. For example, when the polarity of the object to be sprayed is approximately positive, control is performed such that the extinguishing agent particles are charged to a negative polarity.

図６は本実施形態の電圧印加部１５から帯電散布ヘッド１０に加える印加電圧を例示したタイムチャートであり、それぞれ時刻ｔ１から以下のように電圧印加している。   FIG. 6 is a time chart illustrating the applied voltage applied from the voltage application unit 15 to the charging / spreading head 10 according to the present embodiment, and the voltage is applied from time t1 as follows.

図６（Ａ）は＋Ｖの直流状（定常）電圧を印加する場合であり、この場合には、マイナスに帯電した消火剤粒子が連続的に散布される。   FIG. 6A shows a case where a + V DC (steady state) voltage is applied. In this case, negatively charged extinguishing agent particles are continuously dispersed.

図６（Ｂ）は−Ｖの直流状（定常）電圧を印加する場合であり、この場合には、プラスに帯電した消火剤粒子が連続的に散布される。   FIG. 6B shows a case where a DC (steady) voltage of −V is applied. In this case, positively charged extinguishing agent particles are continuously dispersed.

図６（Ｃ）は±Ｖの間で変化する交流状電圧を印加する場合であり、この場合には、プラスの半サイクルの期間に電圧の変化に応じてマイナスに帯電した消火剤粒子が散布され、マイナスの半サイクルの期間に電圧の変化に応じてプラスに帯電した消火剤粒子が散布される。   FIG. 6C shows a case where an alternating voltage that changes between ± V is applied. In this case, negatively charged extinguishing agent particles are scattered in accordance with the voltage change during the positive half cycle. In the negative half-cycle period, the positively charged extinguishing agent particles are sprayed according to the voltage change.

図６（Ｄ）は＋Ｖのパルス状電圧を所定のインターバルを空けて繰り返し印加する場合であり、この場合には、マイナスに帯電した消火剤粒子が間欠的に散布され、電圧を印加していない期間には、帯電していない消火剤粒子の散布となる。   FIG. 6D shows a case where a pulsed voltage of + V is repeatedly applied at a predetermined interval. In this case, negatively charged extinguishing agent particles are intermittently scattered, and no voltage is applied. During the period, there will be a spray of uncharged extinguishing agent particles.

図６（Ｅ）は−Ｖのパルス状電圧を所定のインターバルを空けて繰り返し印加する場合であり、この場合には、プラスに帯電した消火剤粒子が間欠的に散布され、電圧を印加していない期間には、帯電していない消火剤粒子の散布となる。   FIG. 6E shows a case in which a pulsed voltage of −V is repeatedly applied at a predetermined interval. In this case, positively charged extinguishing agent particles are intermittently dispersed and voltage is applied. During periods when there is no charge, there will be a spread of uncharged extinguishing agent particles.

図６（Ｆ）は±Ｖのパルス状電圧を所定のインターバルを空けて交互に繰り返し印加する場合であり、この場合には、マイナスに帯電した消火剤粒子とプラスに帯電した消火剤粒子がインターバルを空けて交互に散布され、電圧を印加していない期間には、帯電していない消火剤粒子の散布となる。このようなインターバルを設けずに±Ｖのパルス状電圧を交互に繰り返し印加しても良い。   FIG. 6 (F) shows a case where a pulsed voltage of ± V is repeatedly applied alternately at a predetermined interval. In this case, the negatively charged extinguishing agent particles and the positively charged extinguishing agent particles are intervals. During the period when the voltage is not applied, the non-charged extinguishing agent particles are dispersed. A pulse voltage of ± V may be alternately applied repeatedly without providing such an interval.

図６（Ｃ）〜（Ｆ）に例示した印加電圧パターンにおける印加周期や転極周期は適宜に定めることができ、また図６（Ａ）〜（Ｆ）の各パターンのうち複数を組み合わせたパターンとすること等もできる。   The application period and the inversion period in the applied voltage pattern illustrated in FIGS. 6C to 6F can be determined as appropriate, and a pattern obtained by combining a plurality of patterns in FIGS. 6A to 6F. And so on.

図６に例示した各パターンの印加電圧を帯電散布ヘッド１０に供給する電圧印加部１５としては、制御入力付きの市販の昇圧ユニットを利用することができる。市販の昇圧ユニットには、例えば入力にＤＣ０〜２０ボルトを加えると出力にＤＣ〜２０キロボルトを出力するものがあり、このような昇圧ユニットが利用できる。   As the voltage application unit 15 that supplies the application voltage of each pattern illustrated in FIG. 6 to the charging / spreading head 10, a commercially available boosting unit with a control input can be used. Some commercially available boosting units output, for example, DC to 20 kilovolts when DC 0 to 20 volts is applied to the input, and such boosting units can be used.

また本発明は火災防災装置の散布方法を提供するものであり、その実施形態としては例えば、図１〜図４に示したように、火災時に水系の消火剤を、配管１６を介して防護エリアＡ，Ｂに設置された帯電散布ヘッド１０に加圧供給し、帯電散布ヘッド１０から噴射した消火剤を、螺旋状（ヘリカル状）に偏向して薄膜流５０を形成した後に粒子群流５２に分裂分離拡散させて、薄膜流５０の分裂分離部Ｐ近傍に外部電界を印加して帯電させ、散布することになる。   Moreover, this invention provides the spraying method of a fire disaster prevention apparatus, and as an embodiment, as shown in FIGS. 1-4, for example, as shown in FIGS. After applying a pressure to the charge spraying heads 10 installed in A and B, the fire extinguishing agent sprayed from the charge spraying heads 10 is deflected in a spiral shape (helical shape) to form a thin film flow 50, and then into the particle group flow 52. By splitting and diffusing, an external electric field is applied in the vicinity of the splitting part P of the thin film flow 50 to be charged and dispersed.

なお、帯電散布ヘッドへの印加電圧パターンを、消火剤側電極部に対し誘導電極部側をプラスマイナス交互の印加電圧とするか、プラスのみの印加電圧とするか、あるいはマイナスのみの印加電圧とするかは、散布対象とする燃焼部材側の状況等に応じて適宜に定めることができる。もちろん、印加や転極の周期等も適宜定めることができる。   In addition, the applied voltage pattern to the charging and spreading head is set such that the induction electrode portion side is alternately plus or minus applied voltage with respect to the extinguishing agent side electrode portion, only the plus applied voltage, or only the minus applied voltage. Whether to do this can be determined as appropriate according to the situation on the combustion member side to be spread. Of course, the period of application and inversion can be determined as appropriate.

また、本発明の帯電散布ヘッドおよび帯電散布方法は、消火や延焼防止（防火）のみ、或いは消煙のみを目的とした各種の利用も可能である。   In addition, the charging / spreading head and the charging / spreading method of the present invention can be used for various purposes only for extinguishing and preventing fire spread (fire prevention), or only for extinguishing smoke.

また、本発明の帯電散布ヘッドにより帯電散布される消火剤は水或いは各種の水系消火剤等の散布剤が適用できる。   In addition, a spray agent such as water or various water-based fire extinguishing agents can be applied to the fire extinguishing agent charged and sprayed by the charging spray head of the present invention.

また本発明は、室内設置用途向けなどとしてユニット化された火災防災装置についても同様に適用できる。   The present invention can be similarly applied to a fire prevention device unitized for indoor installation use.

また、本発明の帯電散布ヘッドおよび消火剤散布方法は、消火や延焼防止、或いは消煙のうち１つまたは複数を目的とした各種の利用が可能である。もちろん、これ以外の他の目的に使用するものであってもよい。   In addition, the charging spray head and the extinguishing agent spraying method of the present invention can be used in various ways for the purpose of one or more of fire extinguishing, fire spread prevention, and smoke extinguishing. Of course, it may be used for other purposes.

また本発明は、上記に限定されず、適宜の散布対象区画に水系の散布剤を帯電散布する静電散布装置（設備）、帯電散布ヘッド及び帯電散布装置の散布方法を含む。この場合には上記の実施形態における消火剤、消火剤側電極部を、散布剤、散布剤側電極部と読み替えれば良い。   The present invention is not limited to the above, and includes an electrostatic spraying device (equipment) for charging and spraying a water-based spraying agent in an appropriate spraying target section, a charging spraying head, and a charging method for the charging spraying device. In this case, the extinguishing agent and the extinguishing agent side electrode part in the above embodiment may be read as the spraying agent and the spraying agent side electrode part.

また本発明はその目的と利点を損なうことのない適宜の変形を含み、更に上記の実施形態に示した数値による限定は受けない。
The present invention includes appropriate modifications that do not impair the objects and advantages thereof, and is not limited by the numerical values shown in the above embodiments.

１０：帯電散布ヘッド
１２：ポンプユニット
１３：手動弁
１４：水源
１５：電圧印加部
１６：配管
１８：専用火災検出器
２０：連動制御中継装置
２２：手動操作箱
２４：システム監視制御盤
２６：火災感知器
２８：受信機
３０：調圧弁
３２：自動開閉弁
３４：立下り配管
３６，３８：ボディ
４０：ノズル部
４１：ノズル穴
４２：デフレクター
４５：電極支持部
４６：消火剤側電極部
４８：誘導電極部
５０：薄膜流
５２：粒子群流
６０：散布パターン
Ｐ：分裂分離部 10: Charge spraying head 12: Pump unit 13: Manual valve 14: Water source 15: Voltage application unit 16: Pipe 18: Dedicated fire detector 20: Interlocking control relay device 22: Manual operation box 24: System monitoring control panel 26: Fire Sensor 28: Receiver 30: Pressure regulating valve 32: Automatic on-off valve 34: Falling pipe 36, 38: Body 40: Nozzle part 41: Nozzle hole 42: Deflector 45: Electrode support part 46: Fire extinguishing agent side electrode part 48: Induction electrode unit 50: thin film flow 52: particle group flow 60: spray pattern P: splitting separation unit

Claims (50)

水系の消火剤を、配管を介して供給する消火剤供給設備と、
防護区画に設置され、前記消火剤供給設備により供給された消火剤の噴射粒子に帯電させて散布する帯電散布ヘッドと、
前記帯電散布ヘッドに帯電電圧を印加する電圧印加部と、
を備えた火災防災装置に於いて、
前記帯電散布ヘッドは、
前記消火剤を対象空間に放出するノズルと、
前記ノズルの内部に配置されて消火剤に対し電気的に導通する消火剤側電極部と、
前記ノズルから放出された消火剤を、螺旋状に偏向して薄膜流を形成した後に分裂分離させて粒子群流に変換し散布する偏向散布部材と、
前記薄膜流の分裂分離部近傍に配置された誘導電極部と、
を備えたことを特徴とする火災防災装置。
A fire extinguisher supply facility for supplying a water-based fire extinguisher via a pipe;
A charged spraying head that is installed in a protective compartment and charges and sprays the fire-extinguishing agent spray particles supplied by the fire-extinguishing agent supply facility;
A voltage applying unit for applying a charging voltage to the charging and spreading head;
In a fire disaster prevention device equipped with
The charging spray head is
A nozzle that discharges the extinguishing agent into the target space;
A fire extinguishing agent side electrode portion that is disposed inside the nozzle and is electrically connected to the fire extinguishing agent;
A deflection spraying member that splits the fire extinguisher discharged from the nozzle into a spiral after being formed into a thin film flow, and converts it into a particle group flow for spraying, and
An induction electrode portion disposed in the vicinity of the splitting separation portion of the thin film flow;
A fire disaster prevention device characterized by comprising:
請求項１記載の火災防災装置に於いて、前記偏向散布部材は、先端を頂点側として円錐螺旋状に変化する偏向面を形成したデフレクターであり、前記ノズルから放出された消火剤を先端に向かうにつれて偏向角が狭まる螺旋状の薄膜流に拡散偏向することを特徴とする火災防災装置。
2. The fire prevention device according to claim 1, wherein the deflecting / dispersing member is a deflector having a deflecting surface that changes in a conical spiral shape with the tip as an apex side, and directs the extinguishing agent discharged from the nozzle toward the tip. A fire disaster prevention device characterized in that it diffuses and deflects into a spiral thin film flow with a deflection angle narrowing as it goes.
請求項１記載の火災防災装置に於いて、前記誘導電極部を螺旋状としたことを特徴とする火災防災装置。
The fire disaster prevention apparatus according to claim 1, wherein the induction electrode portion is formed in a spiral shape.
請求項１記載の火災防災装置に於いて、前記誘導電極部は、導電性を有する、金属、樹脂、繊維束、ゴムのいずれか又はこれらの複合体であることを特徴とする火災防災装置。
The fire disaster prevention apparatus according to claim 1, wherein the induction electrode portion is one of metal, resin, fiber bundle, rubber, or a composite thereof having conductivity.
請求項１記載の火災防災装置に於いて、前記誘導電極部の一部又は全部を絶縁性材料で被覆したことを特徴とする火災防災装置。
The fire disaster prevention apparatus according to claim 1, wherein a part or all of the induction electrode portion is covered with an insulating material.
請求項１記載の火災防災装置に於いて、前記消火剤側電極部は、消火剤供給流路の一部またはノズルであることを特徴とする火災防災装置。
The fire disaster prevention apparatus according to claim 1, wherein the extinguishing agent side electrode portion is a part of a fire extinguishing agent supply flow path or a nozzle.
請求項１記載の火災防災装置に於いて、前記消火剤側電極部の電圧所定の基準値とし、これに対し、前記誘導電極部に所定の帯電電圧を印加することを特徴とする火災防災装置。
2. The fire disaster prevention apparatus according to claim 1, wherein the voltage of the extinguishing agent side electrode portion is set to a predetermined reference value, and a predetermined charging voltage is applied to the induction electrode portion. .
請求項７記載の火災防災装置に於いて、前記誘導電極部に直流状、交流状又はパルス状となる所定の帯電電圧を印加することを特徴とする火災防災装置。
8. The fire disaster prevention apparatus according to claim 7, wherein a predetermined charging voltage having a DC shape, an AC shape, or a pulse shape is applied to the induction electrode portion.
防護区画に設置され、消火剤供給設備により供給された消火剤の噴射粒子に、電圧印加部からの帯電電圧の印加により帯電させて散布する帯電散布ヘッドに於いて、
前記消火剤を対象空間に放出するノズルと、
前記ノズルの内部に配置されて消火剤に対し電気的に導通する消火剤側電極部と、
前記ノズルから放出された消火剤を、螺旋状に偏向して薄膜流を形成した後に分裂分離させて粒子群流に変換し散布する偏向散布部材と、
前記薄膜流の分裂分離部近傍に配置された誘導電極部と、
を備えたことを特徴とする帯電散布ヘッド。
In the charge spraying head installed in the protection zone and sprayed by applying the charging voltage from the voltage application unit to the spray particles of the fire extinguisher supplied by the fire extinguisher supply equipment,
A nozzle that discharges the extinguishing agent into the target space;
A fire extinguishing agent side electrode portion that is disposed inside the nozzle and is electrically connected to the fire extinguishing agent;
A deflection spraying member that splits the fire extinguisher discharged from the nozzle into a spiral after being formed into a thin film flow, and converts it into a particle group flow for spraying, and
An induction electrode portion disposed in the vicinity of the splitting separation portion of the thin film flow;
A charge spraying head characterized by comprising:
請求項９記載の帯電散布ヘッドに於いて、前記偏向散布部材は、先端を頂点側として円錐螺旋状に変化する偏向面を形成したデフレクターであり、前記ノズルから放出された消火剤を先端に向かうにつれて偏向角が狭まる螺旋状の薄膜流に拡散偏向することを特徴とする帯電散布ヘッド。
10. The electrification spraying head according to claim 9, wherein the deflection spraying member is a deflector formed with a deflecting surface that changes in a conical spiral shape with the tip as the apex side, and the fire extinguishing agent discharged from the nozzle is directed toward the tip. A charging and spreading head characterized by diffusing and deflecting into a spiral thin film flow whose deflection angle becomes narrower as it goes.
請求項９記載の帯電散布ヘッドに於いて、前記誘導電極部を螺旋状としたことを特徴とする帯電散布ヘッド。
The charging / spreading head according to claim 9, wherein the induction electrode portion has a spiral shape.
請求項９記載の帯電散布ヘッドに於いて、前記誘導電極部は、導電性を有する、金属、樹脂、繊維束、ゴムのいずれか又はこれらの複合体であることを特徴とする帯電散布ヘッド。
10. The charging / spreading head according to claim 9, wherein the induction electrode portion is one of a metal, a resin, a fiber bundle, rubber, or a composite thereof having conductivity.
請求項９記載の帯電散布ヘッドに於いて、前記誘導電極部の一部又は全部を絶縁性材料で被覆したことを特徴とする帯電散布ヘッド。
The charging / spreading head according to claim 9, wherein a part or all of the induction electrode portion is covered with an insulating material.
請求項９記載の帯電散布ヘッドに於いて、前記消火剤側電極部は、消火剤供給流路の一部またはノズルであることを特徴とする帯電散布ヘッド。
10. The charge spraying head according to claim 9, wherein the extinguishing agent side electrode portion is a part of a fire extinguishing agent supply channel or a nozzle.
請求項９記載の帯電散布ヘッドに於いて、前記消火剤側電極部の電圧を所定の基準値とし、これに対し、前記誘導電極部に所定の帯電電圧を印加することを特徴とする帯電散布ヘッド。
10. The charge distribution head according to claim 9, wherein a voltage of the extinguishing agent side electrode portion is set to a predetermined reference value, and a predetermined charging voltage is applied to the induction electrode portion. head.
請求項１５記載の帯電散布ヘッドに於いて、前記誘導電極部に直流、交流又はパルス状となる所定の帯電電圧を印加することを特徴とする帯電散布ヘッド。
16. The charging / spreading head according to claim 15, wherein a predetermined charging voltage having a direct current, an alternating current, or a pulse shape is applied to the induction electrode portion.
火災時に水系の消火剤を、配管を介して防護区画に設置された帯電散布ヘッドに供給し、
前記帯電散布ヘッドから噴射した消火剤を、円錐状に偏向して薄膜流を形成した後に分裂分離させて散布し、前記薄膜流の分裂分離部近傍に外部電界を印加して帯電させる、
ことを特徴とする火災防災装置の消火剤散布方法。
In the event of a fire, supply a water-based fire extinguisher to the electrostatic spraying head installed in the protective compartment via a pipe,
The fire extinguisher sprayed from the charging spray head is deflected into a conical shape to form a thin film flow, and then split and dispersed, and an external electric field is applied near the split separation portion of the thin film flow to be charged.
A fire extinguishing agent spraying method for a fire disaster prevention device.
請求項１７記載の火災防災装置の消火剤散布方法に於いて、
前記帯電散布ヘッドは、
前記消火剤を対象空間に放出するノズルと、
前記ノズルの内部に配置されて消火剤に対し電気的に導通する消火剤側電極部と、
前記ノズルから放出された消火剤を、螺旋状に偏向して薄膜流を形成した後に分裂分離させて粒子群流に変換し散布する偏向散布部材と、
前記薄膜流の分裂分離部近傍に配置された誘導電極部と、
を備え、
前記誘導電極部と消火剤側電極部との間に電圧を加えることにより生じる外部電界を、前記偏向散布部材による薄膜流の分裂分離部近傍の消火剤に印加して帯電させることを特徴とする火災防災装置の消火剤散布方法。
In the fire extinguishing agent spraying method of the fire disaster prevention device according to claim 17,
The charging spray head is
A nozzle that discharges the extinguishing agent into the target space;
A fire extinguishing agent side electrode portion that is disposed inside the nozzle and is electrically connected to the fire extinguishing agent;
A deflection spraying member that splits the fire extinguisher discharged from the nozzle into a spiral after being formed into a thin film flow, and converts it into a particle group flow for spraying, and
An induction electrode portion disposed in the vicinity of the splitting separation portion of the thin film flow;
With
An external electric field generated by applying a voltage between the induction electrode part and the extinguishing agent side electrode part is applied to the extinguishing agent in the vicinity of the splitting and separating part of the thin film flow by the deflecting and spreading member to be charged. Fire extinguishing agent spraying method for fire prevention equipment.
請求項１７記載の火災防災装置の消火剤散布方法に於いて、前記偏向散布部材は、先端を頂点側として円錐螺旋状に変化する偏向面を形成したデフレクターであり、前記ノズルから放出された消火剤を先端に向かうにつれて偏向角が狭まる螺旋状の薄膜流に拡散偏向することを特徴とする火災防災装置の消火剤散布方法。
The fire extinguishing agent spraying method for a fire disaster prevention device according to claim 17, wherein the deflection spraying member is a deflector having a deflecting surface that changes in a conical spiral shape with the tip as a top side, and the fire extinguisher discharged from the nozzle. A fire extinguishing agent spraying method for a fire disaster prevention device, characterized in that the agent is diffused and deflected into a spiral thin film flow whose deflection angle narrows toward the tip.
請求項１７記載の火災防災装置の消火剤散布方法に於いて、前記誘導電極部を螺旋状としたことを特徴とする火災防災装置の消火剤散布方法。
The fire extinguishing agent spraying method for a fire disaster prevention apparatus according to claim 17, wherein the induction electrode portion is formed in a spiral shape.
請求項１７記載の火災防災装置の消火剤散布方法に於いて、前記誘導電極部は、導電性を有する、金属、樹脂、繊維束、ゴムのいずれか又はこれらの複合体であることを特徴とする火災防災装置の消火剤散布方法。
The fire extinguishing agent spraying method for a fire disaster prevention device according to claim 17, wherein the induction electrode portion is one of a metal, a resin, a fiber bundle, rubber, or a composite thereof having conductivity. Fire extinguishing agent spraying method for fire prevention equipment.
請求項１７記載の火災防災装置の消火剤散布方法に於いて、前記誘導電極部の一部又は全部を絶縁性材料で被覆したことを特徴とする火災防災装置の消火剤散布方法。
The fire extinguishing agent spraying method for a fire disaster prevention apparatus according to claim 17, wherein a part or all of the induction electrode portion is covered with an insulating material.
請求項１７記載の火災防災装置の消火剤散布方法に於いて、前記消火剤側電極部は、消火剤供給流路の一部またはノズルであることを特徴とする火災防災装置の消火剤散布方法。
The fire extinguishing agent spraying method for a fire disaster prevention apparatus according to claim 17, wherein the extinguishing agent side electrode portion is a part of a fire extinguishing agent supply channel or a nozzle. .
請求項１７記載の火災防災装置の消火剤散布方法に於いて、前記消火剤側電極部の電圧を所定の基準値とし、これに対し、前記誘導電極部に所定の帯電電圧を印加することを特徴とする火災防災装置の消火剤散布方法。
The fire extinguishing agent spraying method for a fire disaster prevention apparatus according to claim 17, wherein the voltage of the extinguishing agent side electrode portion is set to a predetermined reference value, and a predetermined charging voltage is applied to the induction electrode portion. A fire extinguishing agent spraying method for a fire disaster prevention device.
請求項２４記載の火災防災装置の消火剤散布方法に於いて、前記誘導電極部に直流状、交流状又はパルス状となる所定の帯電電圧を印加することを特徴とする火災防災装置の消火剤散布方法。
25. The fire extinguishing agent spraying method for a fire disaster prevention apparatus according to claim 24, wherein a predetermined charging voltage in a direct current, alternating current or pulse shape is applied to the induction electrode portion. Spraying method.
水系の散布剤を、配管を介して供給する散布剤供給設備と、
防護区画に設置され、前記散布剤供給設備により供給された散布剤の噴射粒子に帯電させて散布する帯電散布ヘッドと、
前記帯電散布ヘッドに帯電電圧を印加する電圧印加部と、
を備えた帯電散布装置に於いて、
前記帯電散布ヘッドは、
前記散布剤を対象空間に放出するノズルと、
前記ノズルの内部に配置されて散布剤に対し電気的に導通する散布剤側電極部と、
前記ノズルから放出された散布剤を、螺旋状に偏向して薄膜流を形成した後に分裂分離させて粒子群流に変換し散布する偏向散布部材と、
前記薄膜流の分裂分離部近傍に配置された誘導電極部と、
を備えたことを特徴とする帯電散布装置。
A spray agent supply facility for supplying a water-based spray agent via a pipe;
A charged spraying head installed in a protective compartment and charged by spraying spray particles of spraying agent supplied by the spraying agent supply facility;
A voltage applying unit for applying a charging voltage to the charging and spreading head;
In the electrostatic spraying device equipped with
The charging spray head is
A nozzle that discharges the spray agent into the target space;
A spraying agent side electrode portion that is disposed inside the nozzle and is electrically connected to the spraying agent;
A deflecting spraying member that sprays the spraying agent discharged from the nozzle, spirally deflects it to form a thin film flow, and then splits and converts it into a particle group flow and sprays;
An induction electrode portion disposed in the vicinity of the splitting separation portion of the thin film flow;
A charging and spraying device comprising:
請求項２６記載の帯電散布装置に於いて、前記偏向散布部材は、先端を頂点側として円錐螺旋状に変化する偏向面を形成したデフレクターであり、前記ノズルから放出された散布剤を先端に向かうにつれて偏向角が狭まる螺旋状の薄膜流に拡散偏向することを特徴とする帯電散布装置。
27. The charging / spreading device according to claim 26, wherein the deflecting spraying member is a deflector having a deflecting surface that changes in a conical spiral shape with the tip as the apex side, and the spraying agent discharged from the nozzle is directed toward the tip. A charging and dispersing apparatus characterized by diffusing and deflecting into a spiral thin film flow whose deflection angle becomes narrower as the time elapses.
請求項２６記載の帯電散布装置に於いて、前記誘導電極部を螺旋状としたことを特徴とする帯電散布装置。
27. The charging / spreading apparatus according to claim 26, wherein the induction electrode portion has a spiral shape.
請求項２６記載の帯電散布装置に於いて、前記誘導電極部は、導電性を有する、金属、樹脂、繊維束、ゴムのいずれか又はこれらの複合体であることを特徴とする帯電散布装置。
27. The electrification spraying device according to claim 26, wherein the induction electrode portion is one of metal, resin, fiber bundle, rubber, or a composite thereof having conductivity.
請求項２６記載の帯電散布装置に於いて、前記誘導電極部の一部又は全部を絶縁性材料で被覆したことを特徴とする帯電散布装置。
27. The charging / spreading apparatus according to claim 26, wherein a part or all of the induction electrode portion is covered with an insulating material.
請求項２６記載の帯電散布装置に於いて、前記散布剤側電極部は、散布剤供給流路の一部またはノズルであることを特徴とする帯電散布装置。
27. The electrification spraying device according to claim 26, wherein the spraying agent side electrode portion is a part of a spraying agent supply channel or a nozzle.
請求項２６記載の帯電散布装置に於いて、前記散布剤側電極部の電圧所定の基準値とし、これに対し、前記誘導電極部に所定の帯電電圧を印加することを特徴とする帯電散布装置。
27. The electrification spraying device according to claim 26, wherein the voltage of the spraying agent side electrode portion is set to a predetermined reference value, and a predetermined charging voltage is applied to the induction electrode portion. .
請求項３２記載の帯電散布装置に於いて、前記誘導電極部に直流状、交流状又はパルス状となる所定の帯電電圧を印加することを特徴とする帯電散布装置。
33. The charging device according to claim 32, wherein a predetermined charging voltage in a direct current, alternating current or pulse shape is applied to the induction electrode portion.
防護区画に設置され、散布剤供給設備により供給された散布剤の噴射粒子に、電圧印加部からの帯電電圧の印加により帯電させて散布する帯電散布ヘッドに於いて、
前記散布剤を対象空間に放出するノズルと、
前記ノズルの内部に配置されて散布剤に対し電気的に導通する散布剤側電極部と、
前記ノズルから放出された散布剤を、螺旋状に偏向して薄膜流を形成した後に分裂分離させて粒子群流に変換し散布する偏向散布部材と、
前記薄膜流の分裂分離部近傍に配置された誘導電極部と、
を備えたことを特徴とする帯電散布ヘッド。
In a charging spraying head that is installed in a protective section and sprays sprayed particles of spraying agent supplied by a spraying agent supply facility by charging by applying a charging voltage from a voltage application unit,
A nozzle that discharges the spray agent into the target space;
A spraying agent side electrode portion that is disposed inside the nozzle and is electrically connected to the spraying agent;
A deflecting spraying member that sprays the spraying agent discharged from the nozzle, spirally deflects it to form a thin film flow, and then splits and converts it into a particle group flow and sprays;
An induction electrode portion disposed in the vicinity of the splitting separation portion of the thin film flow;
A charge spraying head characterized by comprising:
請求項３４記載の帯電散布ヘッドに於いて、前記偏向散布部材は、先端を頂点側として円錐螺旋状に変化する偏向面を形成したデフレクターであり、前記ノズルから放出された散布剤を先端に向かうにつれて偏向角が狭まる螺旋状の薄膜流に拡散偏向することを特徴とする帯電散布ヘッド。
35. The charging / spreading head according to claim 34, wherein the deflection spraying member is a deflector having a deflecting surface that changes in a conical spiral shape with the tip at the apex side, and the spraying agent discharged from the nozzle is directed toward the tip. A charging and spreading head characterized by diffusing and deflecting into a spiral thin film flow whose deflection angle becomes narrower as it goes.
請求項３４記載の帯電散布ヘッドに於いて、前記誘導電極部を螺旋状としたことを特徴とする帯電散布ヘッド。
35. The charge distribution head according to claim 34, wherein the induction electrode portion has a spiral shape.
請求項３４記載の帯電散布ヘッドに於いて、前記誘導電極部は、導電性を有する、金属、樹脂、繊維束、ゴムのいずれか又はこれらの複合体であることを特徴とする帯電散布ヘッド。
35. The charging / spreading head according to claim 34, wherein the induction electrode portion is one of metal, resin, fiber bundle, rubber, or a composite thereof having conductivity.
請求項３４記載の帯電散布ヘッドに於いて、前記誘導電極部の一部又は全部を絶縁性材料で被覆したことを特徴とする帯電散布ヘッド。
35. The charging / spreading head according to claim 34, wherein a part or all of the induction electrode portion is covered with an insulating material.
請求項３４記載の帯電散布ヘッドに於いて、前記散布剤側電極部は、散布剤供給流路の一部またはノズルであることを特徴とする帯電散布ヘッド。
35. A charging spraying head according to claim 34, wherein said spraying agent side electrode portion is a part of a spraying agent supply channel or a nozzle.
請求項３４記載の帯電散布ヘッドに於いて、前記散布剤側電極部の電圧を所定の基準値とし、これに対し、前記誘導電極部に所定の帯電電圧を印加することを特徴とする帯電散布ヘッド。
35. The charge distribution head according to claim 34, wherein a voltage of the spray agent side electrode portion is set to a predetermined reference value, and a predetermined charge voltage is applied to the induction electrode portion. head.
請求項４０記載の帯電散布ヘッドに於いて、前記誘導電極部に直流、交流又はパルス状となる所定の帯電電圧を印加することを特徴とする帯電散布ヘッド。
41. The charging / spreading head according to claim 40, wherein a predetermined charging voltage in the form of direct current, alternating current or pulse is applied to the induction electrode portion.
水系の散布剤を、配管を介して防護区画に設置された帯電散布ヘッドに供給し、
前記帯電散布ヘッドから噴射した散布剤を、円錐状に偏向して薄膜流を形成した後に分裂分離させて散布し、前記薄膜流の分裂分離部近傍に外部電界を印加して帯電させる、
ことを特徴とする帯電散布装置の帯電散布方法。
Supply the water-based spraying agent to the electrified spraying head installed in the protective compartment via the pipe,
The spraying agent sprayed from the charging spraying head is deflected in a conical shape to form a thin film flow and then split and dispersed, and an external electric field is applied near the splitting part of the thin film flow to be charged.
A charge spraying method for a charge spraying device.
請求項４２記載の帯電散布装置の帯電散布方法に於いて、
前記帯電散布ヘッドは、
前記散布剤を対象空間に放出するノズルと、
前記ノズルの内部に配置されて散布剤に対し電気的に導通する散布剤側電極部と、
前記ノズルから放出された散布剤を、螺旋状に偏向して薄膜流を形成した後に分裂分離させて粒子群流に変換し散布する偏向散布部材と、
前記薄膜流の分裂分離部近傍に配置された誘導電極部と、
を備え、
前記誘導電極部と散布剤側電極部との間に電圧を加えることにより生じる外部電界を、前記偏向散布部材による薄膜流の分裂分離部近傍の散布剤に印加して帯電させることを特徴とする帯電散布装置の帯電散布方法。
In the charging spraying method of the charging spraying device according to claim 42,
The charging spray head is
A nozzle that discharges the spray agent into the target space;
A spraying agent side electrode portion that is disposed inside the nozzle and is electrically connected to the spraying agent;
A deflecting spraying member that sprays the spraying agent discharged from the nozzle, spirally deflects it to form a thin film flow, and then splits and converts it into a particle group flow and sprays;
An induction electrode portion disposed in the vicinity of the splitting separation portion of the thin film flow;
With
An external electric field generated by applying a voltage between the induction electrode part and the spraying agent side electrode part is applied to the spraying agent in the vicinity of the splitting and separating part of the thin film flow by the deflecting spraying member to be charged. Charge spraying method of the charge spraying device.
請求項４３記載の帯電散布装置の帯電散布方法に於いて、前記偏向散布部材は、先端を頂点側として円錐螺旋状に変化する偏向面を形成したデフレクターであり、前記ノズルから放出された散布剤を先端に向かうにつれて偏向角が狭まる螺旋状の薄膜流に拡散偏向することを特徴とする帯電散布装置の帯電散布方法。
44. The charge spraying method for a charge spraying device according to claim 43, wherein the deflection spraying member is a deflector having a deflecting surface that changes in a conical spiral shape with the tip as the apex side, and the spraying agent discharged from the nozzle The charge spraying method of the charge spraying device is characterized by diffusing and deflecting into a spiral thin film flow whose deflection angle becomes narrower toward the tip.
請求項４３記載の帯電散布装置の帯電散布方法に於いて、前記誘導電極部を螺旋状としたことを特徴とする帯電散布装置の帯電散布方法。
44. The charge spraying method for a charge spraying apparatus according to claim 43, wherein the induction electrode portion is formed in a spiral shape.
請求項４３記載の帯電散布装置の帯電散布方法に於いて、前記誘導電極部は、導電性を有する、金属、樹脂、繊維束、ゴムのいずれか又はこれらの複合体であることを特徴とする帯電散布装置の帯電散布方法。
44. The charging / spreading method for a charging / spreading apparatus according to claim 43, wherein the induction electrode portion is one of metal, resin, fiber bundle, rubber, or a composite thereof having conductivity. Charge spraying method of the charge spraying device.
請求項４３記載の帯電散布装置の帯電散布方法に於いて、前記誘導電極部の一部又は全部を絶縁性材料で被覆したことを特徴とする帯電散布装置の帯電散布方法。
44. The charge spraying method for a charge spraying apparatus according to claim 43, wherein a part or all of the induction electrode portion is covered with an insulating material.
請求項４３記載の帯電散布装置の帯電散布方法に於いて、前記散布剤側電極部は、散布剤供給流路の一部またはノズルであることを特徴とする帯電散布装置の帯電散布方法。
44. The charge spraying method of the charge spraying device according to claim 43, wherein the spraying agent side electrode portion is a part of a spraying agent supply channel or a nozzle.
請求項４３記載の帯電散布装置の帯電散布方法に於いて、前記散布剤側電極部の電圧を所定の基準値とし、これに対し、前記誘導電極部に所定の帯電電圧を印加することを特徴とする帯電散布装置の帯電散布方法。
44. The charging method of the charging device according to claim 43, wherein the voltage of the spray agent side electrode portion is set to a predetermined reference value, and a predetermined charging voltage is applied to the induction electrode portion. The charge spraying method of the charge spraying device.
請求項４９記載の帯電散布装置の帯電散布方法に於いて、前記誘導電極部に直流状、交流状又はパルス状となる所定の帯電電圧を印加することを特徴とする帯電散布装置の帯電散布方法。   50. A charging spray method for a charging spray device according to claim 49, wherein a predetermined charging voltage having a direct current, an alternating current or a pulse is applied to the induction electrode portion. .
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013230185A (en) * 2012-04-27 2013-11-14 Hochiki Corp Fire prevention equipment and charging spray head
WO2014122710A1 (en) * 2013-02-05 2014-08-14 パナソニック株式会社 Electrostatic atomization device
KR101567977B1 (en) 2013-10-18 2015-11-10 포항공과대학교 산학협력단 Electro-spray device and droplet spraying method using the same
JP2022029146A (en) * 2020-08-04 2022-02-17 日本ドライケミカル株式会社 Fire-extinguishing equipment and combustible-extinguishing nozzle
JP2022029449A (en) * 2020-08-04 2022-02-17 日本ドライケミカル株式会社 Fire-extinguishing equipment and combustible-extinguishing nozzle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR102017026883A2 (en) 2017-12-13 2019-06-25 Tecnopampa Indústria De Máquinas Ltda PROLONGER ISOLATED FOR SPRAYING WITH ELECTROSTATIC ASSISTANCE

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49135806U (en) * 1973-03-08 1974-11-22
JPS63501692A (en) * 1985-10-01 1988-07-14 マイクロピュア−・インコ−ポレ−テッド Formation of charged droplets
JP2003250923A (en) * 2002-03-04 2003-09-09 Kajima Corp Sprinkler head for water curtain type fireproof system
JP2009106405A (en) * 2007-10-29 2009-05-21 Hochiki Corp Fire prevention equipment and spraying method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49135806U (en) * 1973-03-08 1974-11-22
JPS63501692A (en) * 1985-10-01 1988-07-14 マイクロピュア−・インコ−ポレ−テッド Formation of charged droplets
JP2003250923A (en) * 2002-03-04 2003-09-09 Kajima Corp Sprinkler head for water curtain type fireproof system
JP2009106405A (en) * 2007-10-29 2009-05-21 Hochiki Corp Fire prevention equipment and spraying method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013230185A (en) * 2012-04-27 2013-11-14 Hochiki Corp Fire prevention equipment and charging spray head
WO2014122710A1 (en) * 2013-02-05 2014-08-14 パナソニック株式会社 Electrostatic atomization device
KR101567977B1 (en) 2013-10-18 2015-11-10 포항공과대학교 산학협력단 Electro-spray device and droplet spraying method using the same
JP2022029146A (en) * 2020-08-04 2022-02-17 日本ドライケミカル株式会社 Fire-extinguishing equipment and combustible-extinguishing nozzle
JP2022029449A (en) * 2020-08-04 2022-02-17 日本ドライケミカル株式会社 Fire-extinguishing equipment and combustible-extinguishing nozzle
JP7162851B2 (en) 2020-08-04 2022-10-31 日本ドライケミカル株式会社 Fire extinguishing equipment and nozzles for extinguishing combustibles

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