JP2007261729A - High expansion foam fire extinguishing facility - Google Patents

High expansion foam fire extinguishing facility Download PDF

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JP2007261729A
JP2007261729A JP2006087864A JP2006087864A JP2007261729A JP 2007261729 A JP2007261729 A JP 2007261729A JP 2006087864 A JP2006087864 A JP 2006087864A JP 2006087864 A JP2006087864 A JP 2006087864A JP 2007261729 A JP2007261729 A JP 2007261729A
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fire
high expansion
fire extinguishing
foam
expansion foam
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JP4827572B2 (en
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Osamu Sakagami
修 坂上
Eiji Furusawa
栄二 古澤
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Nohmi Bosai Ltd
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Nohmi Bosai Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an inside air type high expansion foam fire extinguishing facility capable of holding fire extinguishing performance as a whole system even if magnification ratio of foaming of a part of foam generators is reduced due to the effects of smoke and gas generated by combustion of combustible material. <P>SOLUTION: In this high expansion foam fire extinguishing facility installed in a warehouse storing rubber products or plastic products, a plurality of high expansion foam generators 12 are arranged by dispersing them on the entire ceiling side. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、例えばゴム製品やプラスチック製品を貯蔵する倉庫の高膨張泡消火設備に関する。   The present invention relates to a high expansion foam fire extinguishing equipment for a warehouse for storing, for example, rubber products and plastic products.

従来、一定量以上のゴム製品やプラスチック製品を貯蔵または取扱う倉庫や流通センターあるいは工場などは、危険物貯蔵所または取扱所と定められ、スプリンクラーなどの固定消火設備を設置しなければならない。高膨張泡消火設備（例えば、発泡倍率約500倍、泡発生機1台の泡放出量として約500ｍ3/min）が消火手段の一つとして使われているが、十分な発泡倍率を得るために屋外の空気を吸引する方式が一般的で、建屋にダクトを貫接したり、壁に穴を開けて泡発生機を仮設したりしているため、コストが高いなどの問題がある。そこで、泡を放出する区画内の空気を利用するインサイドエア方式の高膨張泡消火設備の使用について、例えば船舶の場合に、エンジンルームに高膨張泡消火設備を設置し、そのエンジンルームで火災があったときに室内の空気によって特殊な泡消火薬剤を発泡させて消火を行なうことが提案されている（例えば特許文献１参照）。
特開平６−１６５８３７号公報 Conventionally, warehouses, distribution centers or factories that store or handle a certain amount or more of rubber products and plastic products are defined as hazardous material stores or handling facilities, and fixed fire extinguishing equipment such as sprinklers must be installed. High expansion foam fire extinguishing equipment (for example, foaming ratio of about 500 times, foam generation amount of one foam generator about 500m 3 / min) is used as one of the fire extinguishing means, but to obtain a sufficient foaming ratio In general, a method of sucking outdoor air is generally used, and there are problems such as high cost because a duct is penetrated through the building or a hole generator is temporarily installed by making a hole in the wall. Therefore, with regard to the use of the inside air type high expansion foam fire extinguishing equipment that uses the air in the compartment that releases the foam, for example, in the case of a ship, a high expansion foam fire extinguishing equipment is installed in the engine room, and a fire occurs in the engine room It has been proposed to extinguish a fire by foaming a special foam fire-extinguishing agent with room air (see, for example, Patent Document 1).
JP-A-6-165837

ところで、ゴムのような製品は燃焼とともに多量の煙やガスが発生し、これら煙やガスを吸引すると泡発生機から放出される泡の発泡倍率が低下することが知られている。そのため、火災が発生した室内の空気を吸引するインサイドエア方式の高膨張泡消火設備では、泡発生機が集中して設置され、または少数の大型泡発生機でシステムが組まれていると、火災が泡発生機の近くで起こった場合、発泡倍率が低下して火災の進展に間に合うだけの泡放出量が得られず、周囲への延焼拡大が懸念される。   By the way, it is known that a product such as rubber generates a large amount of smoke and gas with combustion, and when the smoke and gas are sucked, the foam expansion ratio of the foam released from the foam generator decreases. For this reason, in an inside air type high-expansion foam fire extinguishing system that sucks in indoor air where a fire has occurred, if a large number of large foam generators are installed, If this occurs near the foam generator, the foaming ratio is reduced, the amount of foam released in time for the progress of the fire cannot be obtained, and there is a concern about the spread of fire spread to the surroundings.

本発明は、このような問題点を解決するためになされたものであり、可燃物の燃焼によって発生する煙やガスの影響で一部の泡発生機の発泡倍率が低下しても、システム全体として消火性能を保持し得るインサイドエア方式の高膨張泡消火設備を提供することを目的とする。   The present invention has been made to solve such problems, and even if the foaming ratio of some foam generators is reduced due to smoke or gas generated by combustion of combustible materials, the entire system is An object is to provide an inside air type high expansion foam fire extinguishing equipment capable of maintaining fire extinguishing performance.

本発明に係る高膨張泡消火設備は、ゴム製品又はプラスチック製品を貯蔵する倉庫に配置される高膨張泡消火設備において、複数の高膨張泡発生機を天井側全体に分散して配置したものである。
また、前記複数の高膨張泡発生機は、貯蔵された前記製品の直上を避けるように配置されたものである。
また、前記複数の高膨張泡発生機は、天井側から下に引き降ろし可能な構造を有するものである。 The high expansion foam fire extinguishing equipment according to the present invention is a high expansion foam fire extinguishing equipment arranged in a warehouse for storing rubber products or plastic products. is there.
The plurality of high expansion foam generators are arranged so as to avoid directly above the stored product.
The plurality of high expansion foam generators have a structure that can be pulled down from the ceiling side.

本発明においては、複数の高膨張泡発生機を天井側全体に分散して配置したことにより、火源直近の高膨張泡発生機の発泡倍率が煙やガスの影響で低下しても、それ以外の高膨張泡発生機の泡放出により消火効果を補うことができる。このため、高膨張発生機システムの全体としての消火能力が低下せず、確実に消火することができる。
また、本発明においては、高膨張泡発生機を貯蔵された製品の直上を避けるように配置することで、貯蔵されている可燃物の燃焼による煙やガスの直撃を受け難くしている。
また、本発明においては、高膨張泡発生機は天井側から下に引き降ろすことができるため、天井面に溜まりやすい煙やガスを避けることができ、高膨張泡発生機の発泡能力の低下をさらに防止することができる。 In the present invention, by disposing a plurality of high expansion foam generators distributed throughout the ceiling side, even if the expansion ratio of the high expansion foam generator nearest to the fire source decreases due to the influence of smoke or gas, The fire-extinguishing effect can be supplemented by releasing the foam from the other high expansion foam generator. For this reason, the fire extinguishing capability as a whole of the high expansion generator system does not decrease, and the fire can be reliably extinguished.
Moreover, in this invention, it arrange | positions so that a high expansion | swelling foam generator may be avoided so that the stored product may be just above, and it is made hard to receive the direct hit of the smoke and gas by combustion of the combustible material stored.
Further, in the present invention, since the high expansion foam generator can be pulled down from the ceiling side, it is possible to avoid smoke and gas that easily collect on the ceiling surface, and to reduce the foaming capacity of the high expansion foam generator. Further, it can be prevented.

図１は本発明の一実施形態に係る泡消火設備の構成図である。同図において、倉庫１は、壁など区切られていない一つの倉庫又は耐火壁等で複数に仕切られた防火区画のうち一つの区画を示している。倉庫１内には可燃性収納物ラック２が複数台積み重ねられており、この可燃性収納物ラック２には例えばタイヤ等のゴム製品やプラスチック製品が載置される。可燃性収納物ラック２の上部（倉庫１の天井側）には火災検知器３が所定の消火区画に対応してそれぞれ配置されている。火災検知器３は常時は現場の状況（温度や煙等）を監視して、火災が起きた場合にはこの火災発生信号を火災受信機４に送信し、火災受信機４は火災検知器３の火災発生信号に基づいて火災警報を発するとともに火災表示をし、更に消火設備制御盤５に火災発生信号を送信する。水槽６には消火用水が貯蔵され、加圧送水装置（ポンプ）７が消火設備制御盤５からの制御指令に基づいて消火用水を汲み上げて送り出す。この加圧送水装置（ポンプ）７からの消火用水は、泡消火薬剤タンク８の泡消火薬剤と混合装置９で混合され、混合生成された泡水溶液は消火用配管１０に送り出される。また、この泡消火薬剤タンク８は、加圧送水装置（ポンプ）７による送水圧力が加えられると、泡消火薬剤を送出する構成になっている。   FIG. 1 is a configuration diagram of a foam fire extinguishing facility according to an embodiment of the present invention. In the figure, a warehouse 1 shows one section of a fire prevention section partitioned into a plurality of one warehouse or a fire wall that is not partitioned such as a wall. A plurality of combustible storage racks 2 are stacked in the warehouse 1, and rubber products such as tires and plastic products are placed on the combustible storage rack 2. Fire detectors 3 are respectively disposed in correspondence with predetermined fire extinguishing sections on the upper part of the combustible storage rack 2 (the ceiling side of the warehouse 1). The fire detector 3 always monitors on-site conditions (temperature, smoke, etc.), and if a fire breaks out, this fire signal is sent to the fire receiver 4. A fire alarm is issued on the basis of the fire occurrence signal, and a fire display is displayed. Fire water is stored in the water tank 6, and a pressurized water supply device (pump) 7 pumps out the fire water based on a control command from the fire extinguishing equipment control panel 5. The fire-extinguishing water from the pressurized water supply device (pump) 7 is mixed with the foam fire-extinguishing agent in the foam-extinguishing agent tank 8 by the mixing device 9, and the foam aqueous solution mixed and generated is sent out to the fire-extinguishing pipe 10. In addition, the foam extinguishing agent tank 8 is configured to send out the foam extinguishing agent when the water supply pressure by the pressurized water supply device (pump) 7 is applied.

消火用配管１０には一斉開放弁１１が取り付けられており、更にその下流側は複数の高膨張泡発生機１２が倉庫１の天井側全体に分散して配設されている。高膨張泡発生機１２は通常天井側に配設されているが、必要に応じて天井側から下方に引き降ろして例えば可燃性収納物ラック２の近傍まで引き降ろす。この高膨張泡発生機１２は一斉開放弁１１が開放されると一斉に高膨張泡を放出する。火災検知器３と火災受信機４とは火災検知器配線１３で接続されており、火災検知器３からの火災発生信号が火災検知器配線１３を介して火災受信機４に送信される。消火設備制御盤５と一斉開放弁１１とは一斉開放弁配線１４で接続されており、消火設備制御盤５からの制御信号が一斉開放弁配線１４を介して一斉開放弁１１に供給される。また、消火設備制御盤５と加圧送水装置（ポンプ）７とはポンプ制御配線１５で接続されており、消火設備制御盤５からの制御信号（起動信号）がポンプ制御配線１５を介して加圧送水装置（ポンプ）７に供給される。また、火災受信機４には手動起動装置１６が接続されている。可燃性収納物ラック２は、通常金属性のパイプをフレームとして形成されている。ラック上に積まれる例えばタイヤは、図示しないが、ドーナツの形状を有し、タイヤ同士が肩並びのように縦置きされている。そのため、タイヤ火災が発生すると、上記ドーナツで形成された空洞には燃焼が早く、且つ横に延焼しやすいという特徴がある。   A simultaneous opening valve 11 is attached to the fire-extinguishing pipe 10, and a plurality of high expansion foam generators 12 are dispersed and arranged on the entire ceiling side of the warehouse 1 on the downstream side. Although the high expansion foam generator 12 is normally disposed on the ceiling side, it is pulled down from the ceiling side as needed, for example, to the vicinity of the combustible storage rack 2. The high expansion bubble generator 12 releases high expansion bubbles all at once when the simultaneous release valve 11 is opened. The fire detector 3 and the fire receiver 4 are connected by a fire detector wiring 13, and a fire occurrence signal from the fire detector 3 is transmitted to the fire receiver 4 through the fire detector wiring 13. The fire extinguishing equipment control panel 5 and the simultaneous opening valve 11 are connected by a simultaneous opening valve wiring 14, and a control signal from the fire extinguishing equipment control panel 5 is supplied to the simultaneous opening valve 11 through the simultaneous opening valve wiring 14. The fire extinguishing equipment control panel 5 and the pressurized water supply device (pump) 7 are connected by a pump control wiring 15, and a control signal (start signal) from the fire extinguishing equipment control panel 5 is applied via the pump control wiring 15. It is supplied to a pressure water supply device (pump) 7. In addition, a manual activation device 16 is connected to the fire receiver 4. The combustible storage rack 2 is usually formed with a metal pipe as a frame. For example, the tires stacked on the rack have a donut shape (not shown), and the tires are vertically placed so that the tires are arranged side by side. Therefore, when a tire fire occurs, the cavity formed by the donut has a feature that it burns quickly and easily spreads sideways.

図２は、高膨張泡発生機１２の配置状態を示した説明図である。高膨張泡発生機１２は、倉庫１において、例えばタイヤ等のゴム製品やプラスチック製品等の火災になり易い製品が積まれる可燃性収納物ラック２だけではなく、可燃性収納物ラック２の上方の空間の全体に亘るように分散して配設されている。この高膨張泡発生機１２の泡放出流量は例えば約２００ｍ3／ｍｉｎで、従来の大流量泡発生機の半分以下の容量となっている。 FIG. 2 is an explanatory view showing an arrangement state of the high expansion foam generator 12. The high-expansion foam generator 12 is provided not only in the combustible storage rack 2 in which a product that is likely to cause a fire such as a rubber product such as a tire or a plastic product is loaded in the warehouse 1 but also in the upper part of the combustible storage rack 2. It is distributed and arranged so as to cover the entire space. The high expansion foam generator 12 has a foam discharge flow rate of, for example, about 200 m 3 / min, which is less than half the capacity of the conventional large flow bubble generator.

図３は、同様に高膨張泡発生機１２の配置状態を示した説明図である。高膨張泡発生機１２は、倉庫１において、可燃性収納物ラック２の上方を避けて、通路上の全体にわたるように分散して配置されている。このように高膨張泡発生機１２を配置することにより、可燃物の燃焼による煙やガスの直撃を受け難くするばかりか、設置工事や保守点検が容易になる。   FIG. 3 is an explanatory view showing the arrangement state of the high expansion foam generator 12 in the same manner. In the warehouse 1, the high expansion foam generators 12 are arranged so as to be distributed over the entire passage, avoiding the upper side of the combustible storage rack 2. By arranging the high-expansion foam generator 12 in this way, not only is it difficult to be directly hit by smoke and gas due to combustion of combustible materials, but installation work and maintenance inspection are facilitated.

次に、図１、図２及び図３の高膨張泡消火設備の動作について説明する。
（１）図１の倉庫１内で可燃性収納物ラック２に載置されている例えばタイヤが何らかの原因で燃えて火災が発生すると、火災検知器３が作動して火災発生信号を火災受信機４に送信する。
（２）火災受信機４は火災検知器３からの火災発生信号を受信すると、その火災発生信号に基づいて火災警報を発するとともに火災表示をし、更に、消火設備制御盤５に火災発生信号を送信する。
（３）消火設備制御盤５は、火災発生信号を受信すると、火災表示をするとともに一斉開放弁１１を開放する。更に、加圧送水装置（ポンプ）７を起動させて水槽６の消火用水を送水させる。この加圧送水装置（ポンプ）７の起動により泡消火薬剤タンク８が加圧され、泡消火薬剤タンク８から泡消火薬剤が送出される。 Next, operation | movement of the high expansion bubble fire extinguishing equipment of FIG.1, FIG2 and FIG.3 is demonstrated.
(1) If, for example, a tire burns for some reason in the warehouse 1 of FIG. 1 and a fire occurs due to a fire, a fire detector 3 is activated and a fire signal is sent to the fire receiver. 4 to send.
(2) Upon receiving the fire occurrence signal from the fire detector 3, the fire receiver 4 issues a fire alarm and displays a fire based on the fire occurrence signal, and further sends a fire occurrence signal to the fire extinguishing equipment control panel 5. Send.
(3) When the fire extinguishing equipment control panel 5 receives the fire occurrence signal, it displays a fire and opens the simultaneous release valve 11. Furthermore, the pressurized water supply device (pump) 7 is activated to supply water for fire extinguishing in the water tank 6. The foam fire extinguishing agent tank 8 is pressurized by the activation of the pressurized water supply device (pump) 7 and the foam extinguishing agent tank 8 is sent out.

（４）混合装置９は、水槽６からの消火用水と泡消火薬剤タンク８からの泡消火薬剤とを混合して泡水溶液を継続して送出する。
（５）高膨張泡発生機１２は、消火用配管１０内の泡水溶液と空気とを混合して泡を生成して放射する。高膨張泡発生機１２から泡が放射されることにより、その泡が、火災が発生した可燃性収納物ラック２だけでなく他の可燃性収納物ラック２を覆うとともに、可燃性収納物ラック２と可燃性収納物ラック２との間の隙間にも堆積し、火災が発生した可燃性収納物ラック２の周囲を覆う。このため、例えばタイヤ火災は、上記のように燃焼が早く、且つ横に延焼しやすいが、確実に消火することができる。また、高膨張泡発生機１２は天井側から下方に引き降ろし可能な構造を有しているので、天井面に燃焼により発生した煙が溜まるときに、高膨張泡発生機１２を引き降ろして、煙の層を避けて発泡すれば、発泡能力の低下を防ぐことができ、確実に消火することができる。なお、上記の説明においては、火災検知器３が作動する例について説明したが、作業員等により火災を発見した場合には、手動起動装置１６を操作することにより、火災受信機４がその起動信号を取り込むことにより上記の例の同様な動作が得られる。 (4) The mixing device 9 mixes the fire-extinguishing water from the water tank 6 and the foam-extinguishing agent from the foam-extinguishing agent tank 8 and continuously sends out the foam aqueous solution.
(5) The high expansion foam generator 12 mixes the foam aqueous solution in the fire extinguishing pipe 10 and the air to generate and radiate the foam. When the foam is emitted from the high expansion foam generator 12, the foam covers not only the combustible storage rack 2 in which a fire has occurred but also other combustible storage rack 2, and the combustible storage rack 2 And the flammable storage rack 2 also accumulates in the gap between the flammable storage rack 2 and covers the periphery of the flammable storage rack 2 where a fire has occurred. For this reason, for example, a tire fire can be extinguished reliably although it burns quickly and easily spreads sideways as described above. Further, since the high expansion bubble generator 12 has a structure that can be pulled down from the ceiling side, when the smoke generated by combustion accumulates on the ceiling surface, the high expansion bubble generator 12 is pulled down to generate smoke. If foaming is performed while avoiding the layer, it is possible to prevent a reduction in foaming ability and to extinguish the fire reliably. In the above description, the example in which the fire detector 3 operates has been described. However, when a fire is detected by an operator or the like, the fire receiver 4 is activated by operating the manual activation device 16. By taking in the signal, the same operation as in the above example can be obtained.

以上のように本実施形態においては、比較的小型の高膨張泡発生機１２を倉庫１の空間の全体に亘って分散して配設しており、このため、仮に火源直近の高膨張泡発生機１２の発泡倍率が煙やガスの影響で低下するということがあっても、それ以外の高膨張泡発生機１２は火源より離れているので、煙やガスの影響を受けず、高膨張泡放出により消火効果を補うことができるので、ゴム製品やプラスチック製品の倉庫１の火災を確実に消すことができる。
また、高膨張泡発生機１２が可燃性収納物ラック２の直上ではなく、それを避けた通路の上方に配置されたので、タイヤの燃焼による煙やガスの直撃を受け難く、火災を確実に消すことができる。
また、高膨張泡発生機１２が天井側から引き降ろすことが可能な構造になっているため、天井面に燃焼による大量の煙が溜まっても、高膨張泡発生機１２がその煙の層を避けることができ、発泡倍率が煙の影響で低下することなく、ゴム製品やプラスチック製品の倉庫１の火災を確実に消すことができる。 As described above, in the present embodiment, the relatively small high-expansion foam generators 12 are distributed throughout the space of the warehouse 1, and for this reason, the high-expansion foam close to the fire source is assumed. Even if the expansion ratio of the generator 12 decreases due to the influence of smoke or gas, the other high expansion foam generator 12 is far from the fire source, so it is not affected by the smoke or gas, Since the fire extinguishing effect can be supplemented by releasing the expanded foam, the fire in the warehouse 1 for rubber products and plastic products can be surely extinguished.
In addition, since the high expansion foam generator 12 is disposed not directly above the combustible storage rack 2 but above the passage avoiding it, it is difficult to receive a direct blow of smoke and gas due to the burning of the tire, thereby ensuring a fire. Can be erased.
Moreover, since the high expansion bubble generator 12 has a structure that can be pulled down from the ceiling side, even if a large amount of smoke accumulates on the ceiling surface, the high expansion bubble generator 12 forms a layer of the smoke. This can be avoided, and the fire of the warehouse 1 for rubber products and plastic products can be surely extinguished without lowering the expansion ratio due to smoke.

本発明の一実施形態に係る泡消火設備の構成図である。It is a lineblock diagram of the foam fire extinguishing equipment concerning one embodiment of the present invention. 高膨張泡発生機の配置状態を示した説明図である。It is explanatory drawing which showed the arrangement | positioning state of a highly expanded foam generator. 倉庫の通路上に高膨張泡発生機を分散配置した状態を示した説明図である。It is explanatory drawing which showed the state which distributedly arrange | positioned the highly expanded foam generator on the channel | path of a warehouse.

符号の説明Explanation of symbols

１ 倉庫、２ 可燃性収納物ラック、３ 火災検知器、４ 火災受信機、５ 消火設備制御盤、６ 水槽、７ 加圧送水装置（ポンプ）、８ 泡消火薬剤タンク、９ 混合装置、１０ 消火用配管、１１ 一斉開放弁、１２ 高膨張泡発生機、１３ 火災検知器配線、１４ 一斉開放弁配線、１５ ポンプ制御配線、１６ 手動起動装置。   1 warehouse, 2 flammable storage rack, 3 fire detector, 4 fire receiver, 5 fire extinguishing equipment control panel, 6 water tank, 7 pressurized water supply device (pump), 8 foam fire extinguishing chemical tank, 9 mixing device, 10 fire extinguishing Pipe, 11 Simultaneous open valve, 12 High expansion foam generator, 13 Fire detector wiring, 14 Simultaneous open valve wiring, 15 Pump control wiring, 16 Manual starter.

Claims (3)

ゴム製品又はプラスチック製品を貯蔵する倉庫に配置される高膨張泡消火設備において、
複数の高膨張泡発生機を天井側全体に分散して配置したことを特徴とする高膨張泡消火設備。 In a high expansion foam fire extinguishing facility located in a warehouse for storing rubber products or plastic products,
A high-expansion foam fire extinguishing system, characterized in that a plurality of high-expansion foam generators are distributed throughout the ceiling. 前記複数の高膨張泡発生機は、貯蔵された前記製品の直上を避けるように配置されたことを特徴とする請求項１の高膨張泡消火設備。   The high expansion foam fire extinguishing equipment according to claim 1, wherein the plurality of high expansion foam generators are arranged so as to avoid directly above the stored product. 前記複数の高膨張泡発生機は、天井側から下に引き降ろし可能な構造を有することを特徴とする請求項１の高膨張泡消火設備。
The high expansion foam fire extinguishing equipment according to claim 1, wherein the plurality of high expansion foam generators have a structure that can be pulled down from the ceiling side.
JP2006087864A 2006-03-28 2006-03-28 High expansion foam fire extinguishing equipment Active JP4827572B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113631490A (en) * 2019-03-25 2021-11-09 自动存储科技股份有限公司 Automated cellular access system with foam-based fire protection system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05146523A (en) * 1991-11-29 1993-06-15 Nohmi Bosai Ltd Foam fire extinguishing facility for high-rised warehouse or the like
JPH1015101A (en) * 1996-07-05 1998-01-20 Hochiki Corp Fixed fire-extinguishing device for warehouse

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05146523A (en) * 1991-11-29 1993-06-15 Nohmi Bosai Ltd Foam fire extinguishing facility for high-rised warehouse or the like
JPH1015101A (en) * 1996-07-05 1998-01-20 Hochiki Corp Fixed fire-extinguishing device for warehouse

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113631490A (en) * 2019-03-25 2021-11-09 自动存储科技股份有限公司 Automated cellular access system with foam-based fire protection system
CN113631490B (en) * 2019-03-25 2023-03-14 自动存储科技股份有限公司 Automated cellular access system with foam-based fire protection system

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