WO2009006765A1 - Aérosol d'extinction de feu pour appareil électrique de précision - Google Patents

Aérosol d'extinction de feu pour appareil électrique de précision Download PDF

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Publication number
WO2009006765A1
WO2009006765A1 PCT/CN2007/003210 CN2007003210W WO2009006765A1 WO 2009006765 A1 WO2009006765 A1 WO 2009006765A1 CN 2007003210 W CN2007003210 W CN 2007003210W WO 2009006765 A1 WO2009006765 A1 WO 2009006765A1
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Prior art keywords
fire extinguishing
potassium
salt
electrical equipment
nitrate
Prior art date
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PCT/CN2007/003210
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English (en)
French (fr)
Inventor
Hongbao Guo
Zanfeng Zhang
Original Assignee
Shaanxi J&R Fire Fighting Co., Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Shaanxi J&R Fire Fighting Co., Ltd filed Critical Shaanxi J&R Fire Fighting Co., Ltd
Priority to RU2010104458/05A priority Critical patent/RU2481138C2/ru
Priority to EP07816820A priority patent/EP2172248A4/en
Priority to CA2705510A priority patent/CA2705510A1/en
Priority to JP2010515334A priority patent/JP2010532685A/ja
Priority to BRPI0721841 priority patent/BRPI0721841A2/pt
Priority to KR1020107002800A priority patent/KR101320771B1/ko
Priority to US12/668,449 priority patent/US8231801B2/en
Priority to AU2007356394A priority patent/AU2007356394A1/en
Publication of WO2009006765A1 publication Critical patent/WO2009006765A1/zh

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    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C3/00Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62DCHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D1/00Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
    • A62D1/0092Gaseous extinguishing substances, e.g. liquefied gases, carbon dioxide snow
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62DCHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D1/00Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
    • A62D1/06Fire-extinguishing compositions; Use of chemical substances in extinguishing fires containing gas-producing, chemically-reactive components

Definitions

  • Aerosol fire extinguishing composition suitable for precision electrical equipment
  • the invention belongs to the technical field of fire extinguishing compositions, and relates to a method suitable for relatively closed space
  • Aerosol fire extinguishing compositions for Class A and Class B fires relate to an aerosol fire extinguishing composition suitable for use in precision electrical equipment.
  • aerosol fire extinguishing technology that has appeared since the 1990s is based on the intense redox reaction between the oxidant and the fuel.
  • the chemical reaction of the active inhibitor produces a fire that destroys the free radicals in the flame.
  • Technology it has attracted attention because of its characteristics of non-toxic, non-corrosive, high volumetric efficiency, long storage period, full flooding, and all-round fire extinguishing. From the end of the last century to the present, aerosol technology has developed rapidly, and related patents have emerged one after another.
  • hot aerosol fire extinguishing technology includes pyrotechnic hot aerosol fire extinguishing technology and water based hot aerosol fire extinguishing technology.
  • Most of the current pyrotechnic thermal aerosol fire extinguishing technology is a pyrotechnic agent based on solid materials consisting of oxidants, combustibles, binders and burning rate modifiers.
  • pyrotechnic hot aerosol fire extinguishing agent has high fire extinguishing efficiency, simple structure of fire extinguishing equipment, no need for pressure resistant container, fire extinguishing device can be modularized, can be stored under normal temperature and pressure, easy to maintain, fire extinguishing agent
  • alkali metal nitrates especially potassium nitrate
  • Pyrotechnic hot aerosol fire extinguishing technology is the first choice for oxidants.
  • combustible agent In the choice of combustible agent, the range of substances that can meet the principle of component selection is relatively wide. Generally, organic or inorganic combustible agents that meet the requirements are selected under the premise of satisfying the design of negative oxygen balance, such as RU218458, RU2214848, US20010011567, US6264772, RU2157271, A flammable agent or the like disclosed in the patents of RU2050878, US5831209, W09733653, EP0561035 and the like. As a water-based hot aerosol fire extinguishing agent technology, its oxidant and combustible agent are selected to meet the requirements of high oxygen balance design.
  • the fire extinguishing composition of US Pat. No. 6,061, 1986 although having the components of potassium nitrate and cerium nitrate, is only used as an additive or an auxiliary oxidizing agent, and the main oxidizing agent is ammonium nitrate which must be stably treated by the eye, and the main purpose is to provide high expansion.
  • the quality of the gas although used in fire-fighting technology, has the advantage of lower temperature, but it also affects the burning speed and gas production rate.
  • a high-oxygen equilibrium pyrotechnic gas generating agent is provided in US Pat. No. 6,093,269, wherein the high concentration of cerium nitrate acts to maintain a neutral balance of oxygen/fuel, mainly for automobiles, gun propellers, expansion devices, and safety gas. In the propellant composition.
  • CN1150952C and CN1222331C are prior patent applications of the inventors of the present application, and the disadvantages of the two technologies are that both the fire extinguishing efficiency and the On the corrosiveness of electrical equipment, there is no separate design according to the requirements of electrical equipment for insulation, because different types of electrical equipment have different tolerance to the insulation resistance value caused by different dangerous static accumulation or acid-alkaline corrosion.
  • the insulation resistance is generally required to be > 11 ⁇ 10 to ⁇ 201 ⁇ 1 ⁇ (see the People's Republic of China power industry series standards, such as DL /T5161.7-2002 "Electrical device installation engineering quality inspection and assessment procedures (rotary motor construction quality inspection face)", etc.); for communication, computer, vehicle electrical devices, medical electrical equipment and other common electrical equipment, generally require insulation resistance > 20 ] ⁇ 10 to ⁇ 100] ⁇ 10 (See “Electronic Industry of the People's Republic of China" Standard series, “Communication Industry Standards of the People's Republic of China” series, “Computer Industry Standards of the People's Republic of China” series, such as GB6649-86 "General Specification for Semiconductor Integrated Circuits", IPC 9201 “Handbook of Surface Insulation Resistance", etc.) Precision electrical equipment consisting of circuit boards and substrates generally requires insulation resistance > 100 ⁇ (see the "Electronic Industry of the People's Republic of China” Standard series, “Communication Industry Standards of the People's Republic of China” series
  • the inventors of the present application have conducted intensive studies on hot aerosol fire extinguishing technology in recent years to show that the concentration of extinguishing oil depends on the quality of the fire extinguishing agent and the inherent physical and chemical properties of the chemical component itself.
  • the burning rate of the fire extinguishing agent is related to the design of the oxygen balance, the choice of the oxidant and the combustible agent.
  • the inventors of the present application have repeatedly conducted oxidizing agents, screening of flammable agents, combustion reaction rate adjustment test, fire extinguishing aerosol residue test, cooling technology test, fire extinguishing agent micro powder technology test, solid particle moisture absorption insulation test, etc., and finally The technical solution of the aerosol fire extinguishing composition suitable for the precision electrical equipment of the present invention is determined.
  • the present invention is applicable to an aerosol fire extinguishing composition for precision electrical equipment, comprising an oxidizing agent, a flammable agent, a binder and an additive, characterized in that: the oxidizing agent in the fire extinguishing composition is a mixture of a potassium salt oxidizing agent and a cerium salt oxidizing agent; a combination of one or more of cerium nitrate, bismuth citrate, triamino guanidine nitrate, diamino guanidine nitrate; additives selected from the group consisting of aluminum powder, magnesium powder, carbon powder, magnesium carbonate, calcium carbonate, potassium feldspar a combination of one or more; the binder is selected from the group consisting of a combination of one or more of a furfural resin, an epoxy resin, and an acrylic resin; and the mass percentage of each component in the fire extinguishing composition is:
  • Potassium salt oxidant greater than or equal to 5% to less than 15%;
  • Barium salt oxidant greater than or equal to 52% to less than or equal to 60%;
  • Combustible agent 10% to 25%; Additive: 2% to 20%;
  • Adhesive 2% to 20%.
  • the barium salts which can be used in the fire extinguishing composition of the present invention are barium nitrate, barium oxide, barium carbonate, barium sulfite, barium pyrophosphate, barium bromide, barium dichromate, barium permanganate, barium molybdate, hexabos One or two to three combinations of phlegm; and the potassium salt is one of nitric acid, potassium chlorate, potassium perchlorate, potassium chloride, potassium carbonate, potassium citrate or a combination of two or three;
  • the potassium salt oxidant may also be partially or completely replaced by one or a combination of two or three of sodium bicarbonate, sodium nitrate, sodium perchlorate, ammonium nitrate, ammonium perchlorate, cerium nitrate, cerium nitrate.
  • the combustible agent which can be used in the fire extinguishing composition of the present invention may also be pentaaminotetrazole and a salt thereof, a tetratetrazole and a salt thereof, a diazoaminotetrazole and a salt thereof, a heavy ammonia tetrazole dimer and a salt thereof.
  • pentaaminotetrazole and a salt thereof a tetratetrazole and a salt thereof
  • a diazoaminotetrazole and a salt thereof a heavy ammonia tetrazole dimer and a salt thereof.
  • the additive which can be used in the fire extinguishing composition of the present invention may also be an phthalic acid borate clock and a salt thereof, a hydroxybenzoic acid and a salt thereof, a benzoic acid and a salt thereof, palmitic acid and a salt thereof, ammonium nitrate, potassium perchlorate, chlorine A combination of one or more of potassium, copper oxide, iron oxide, copper phthalocyanine, potassium ferricyanide, and hexamethylenetetramine.
  • the binder which can be used in the fire extinguishing composition of the present invention may also be one or more of polytetrafluoroethylene, ethylene polymer, nitrocellulose, triglyceride, polyvinyl acetate, melamine resin. The combination.
  • the oxidizing agent, combustible agent, binder, and additive particles in the fire extinguishing composition of the present invention have a maximum average diameter of 50/tm.
  • the aerosol fire extinguishing composition comprises:
  • Aluminum powder 2% - 10%
  • Phenolic resin 2% ⁇ 10%.
  • the aerosol fire extinguishing composition comprises:
  • Epoxy resin 2% ⁇ 10%.
  • the aerosol fire extinguishing composition comprises:
  • Acrylic resin 2% ⁇ 10%.
  • the aerosol fire extinguishing composition comprises:
  • Epoxy resin 2% ⁇ 10%.
  • the aerosol fire extinguishing composition of the present invention is used for extinguishing fires having a fire extinguishing space for precision electrical equipment, and the insulation resistance of the precision electrical equipment is greater than 100 ⁇ ⁇ .
  • the inventors of the present application have proved through repeated tests that the technical scheme of the aerosol fire extinguishing composition suitable for precision electrical equipment is determined by repeated screening and testing of oxidizing agents, combustible agents, binders, additive components and ratios. After the fire extinguishing, the insulation resistance of the precision electrical equipment is higher than 100 ⁇ ⁇ . Compared with the prior art, it not only achieves the purpose of not causing secondary damage to the precision electrical equipment after the fire extinguishing of the present invention, but also ensures the fire extinguishing performance. A new generation of targeted, highly efficient aerosol fire extinguishing compositions.
  • the aerosol fire extinguishing composition of the present invention suitable for use in precision electrical equipment was formulated according to the formulation shown in the table below and the insulation resistance of the sediment was determined according to the following description: Component component quality i: percentage
  • the insulation resistance of the aerosol fire extinguishing agent is determined in accordance with GB499.1-2007.10.2.
  • the test equipment includes a test chamber 1M 3 (1 X 1 X lm), a high resistance meter with a measuring range of 0.1 ⁇ ⁇ to 500 ⁇ ⁇ (ZC36 type high resistance meter manufactured by Shanghai Precision Instrument Factory), a culture i, a precision balance and an aerosol generator.
  • the test plate is a white PVC sample plate of 100 x 100 X lmm. Press 100g of aerosol generating agent into a cylinder with a diameter of 40mm and a height of 100mm under a pressure of 5Mpa, and put it into the electric starter. The cartridge is then loaded into a small generator with no coolant added to the generator.
  • the cleaned test panels were placed in the culture sub-zone with tweezers, and the sub-flats were placed on the 250 mm high test rack in the center of the test chamber. Place the generator in the corner of the test chamber, the spout is facing away from the test panel, connect the starter line, close the test box door, start the device and time the stopwatch. After 20 minutes, remove the petri dish containing the test plate and put it into the temperature 35", humidity The 90% constant temperature and humidity chamber was kept for 30 minutes, and the resistance plate was taken out immediately after the test plate was taken out.

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Fire-Extinguishing Compositions (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Description

适用于精密电器设备的气溶胶灭火组合物 技术领域
本发明属于灭火组合物技术领域, 涉及一种适用于相对封闭空间朴灭
A、 B类火灾的气溶胶灭火组合物,特别是涉及一种适用于精密电器设备的 气溶胶灭火组合物。
背景技术
自 90年代以来出现的气溶胶灭火技术, 是一种基于氧化剂与燃料之间 产生的剧烈氧化还原反应, 通过产生的活性抑制剂的化学反应, 摧毁火焰 中的自由基团燃烧链式反应的灭火技术, 它因为具有无毒、 无腐蚀、 容积 效率高, 贮存周期长、 全淹没、 全方位灭火等特点而备受瞩目。 从上世纪 末到目前的十多年间,气溶胶技术得到了迅猛的发展,相关专利层出不穷。 气溶胶灭火技术主要有 3种:热气溶胶灭火技术、冷气溶胶灭火技术和细水 雾灭火技术。 其中热气溶胶灭火技术包括基于烟火药类热气溶胶灭火技术 和水基类热气溶胶灭火技术。 目前的绝大多数烟火药类热气溶胶灭火技术 是基于氧化剂、 可燃剂、 粘合剂和燃烧速度调节剂组成的固体物质的烟火 药类灭火剂。 烟火药类热气溶胶灭火剂作为一种哈龙替代品, 具有灭火效 率高, 灭火设备构造简单, 无需耐压容器, 灭火装置可模块化组合, 可在 常温常压下存放, 维护方便, 灭火剂储存期长, 成本低廉, 臭氧消耗值 ODP=0, 且温室效应值 GWP较低, 性 /价比明显优于其它类型的灭火剂, 有利于进入市场, 推进哈龙替代计划的实施。
在本发明以前的现有技术中, 在烟火药类热气溶胶灭火剂中氧化剂的 选择上, 硝酸类碱金属盐, 尤其是硝酸钾, 因为能够满足成分选择原则的 大部分要求而被绝大多数烟火药类热气溶胶灭火技术作为氧化剂的首选。 其中, 以单组分硝酸鉀作为氧化剂的气溶胶灭火组合物的现有技术中, 出 现最多的是以俄罗斯系列专利群为代表的热气溶胶灭火剂技术, 如 RU2230726、 RU2184587、 RU2214848、 RU2150310、 RU2108124、 RU2091106、 RU2076761、 RU2151135、 RU2116095、 RU2006239、 RU2022589 等专利, 以及 WO0158530、 W09733653 , WO9423800、 US5831209、 US6042664, US6264772, US5573555, US6116348等世界其它各国的专利; 其次是以硝酸钾和 /或高氯酸钾为主和 /或其它碱金属、 碱土金属的硝酸盐、 如: CA2250325、 DE19915352, UA7773, EP0561035, WO2005023370, RU2157271 , RU2098156 , US20020121622、 US5423385 , US5492180、 US5425426、 US6277296等世界各国专利。 在可燃剂的选择上, 能够满足 成分选择原则的物质范围比较宽, 一般是在满足负氧平衡设计的前提下选 择符合要求的有机或无机可燃剂, 如 RU218458、 RU2214848、 US20010011567 , US6264772 , RU2157271 , RU2050878 , US5831209 , W09733653, EP0561035等专利中所公布的可燃剂等等。 作为水基类热气 溶胶灭火剂技术, 其氧化剂、 可燃剂的选择多以满足高氧平衡设计的前提 下选择可以产生气体、 水分和金属固体微粒的硝酸铵、 高氯酸铵、硝酸钾、 硝酸锶、 硝酸胍等组分, 如 US6277296、 US6093269、 US6045726 US6019861、 US5613562等项专利所披露的内容。
上述这些热气溶胶灭火专利技术, 都以其高效灭火、 价格低廉、 维护 方便等特点成为近年来看好的灭火热门产品之一。 然而, 随着实际产品的 市场化应用和研制工作的深入开展, 上述现有技术和产品逐渐暴露出了许 多问题, 近期大量的应用实践和研究工作表明, 以硝酸钟为主的单组分或 多组分氧化剂的灭火剂在取得高效灭火的同时, 产生的氢氧化钟强碱性导 电物质也带来了对被保护空间和物体的二次损害问题。 尤其是水基类热气 溶胶灭火剂, 所产生的水分与金属氧化物更容易形成强碱性导电物质, 对 于仪表间、 控制间、 发电机房、 电池柜、 通讯基站、 变压器站的火灾, 往 往会造成朴灭火之后普通电器设备也被损坏或腐蚀的无法弥补的后果。 而 且, 所产生的一氧化二氮若不能被很快分解, 还会对人产生神经毒性。 根 据这一现状, 一些研究部门和生产厂商近年来也相继推出了能够兼顾灭火 效率和二次损害问题的热气溶胶灭火技术方案,如 CN200510105449号专利 申请公布了以硝酸锶为唯一氧^剂的气溶胶灭火剂的技术方案, 该技术方 案最大的问题是虽然某种程度上降低了对精密电器设备的二次损害程度, 但同时也很大程度上降低了灭火剂的灭火效能。 US5613562、 US5609210 号专利中的灭火组合物中采用了硝酸锶为氧化剂, 其主要作用是作为动力 源将第二种含碳氟键、 碳氢氟鍵的灭火液体气化后喷射到火场, 而产生的 氢氟酸不仅有剧毒, 而且腐蚀性大, 属于水基热气溶胶技术。 US6019861 号专利中的灭火组合物中虽然也有硝酸钾、 硝酸锶的成分, 但只是作为添 加剂或辅助氧化剂, 其主要氧化剂是必须经 ^目稳定处理的硝酸铵, 且主 要用途是为了提供高膨胀性气体的质量, 用于灭火技术中虽然具有较低温 度的优点, 但同时也影响了燃烧速度和产气速度。 US6093269专利中提供 了一种高氧平衡的烟火气体发生剂, 其中的高浓度硝酸锶的作用是维持氧 /燃的中性平衡, 主要是用于汽车、 枪推进器、 膨胀装置、 安全气嚢的推进 剂组合物中。
与本发明技术主题较为接近的现有技术 CN1739820A、 CN1150952C, CN1222331C中, CN1150952C和 CN1222331C是本申请的发明人的在先 申请专利技术, 该两项技术的不足之处在于, 在兼顾灭火效能与对电器设 备腐蚀性问题上, 没有按照电气设备对绝缘性的要求进行分门别类的设 计, 因为不同类别的电气设备对不同危险的静电积聚或酸碱性腐蚀引起的 绝缘电阻值下降有不同的承受能力, 例如对于发电机、 电动机、 高、 低压 电器、电网、电缆等强电类电气装置,一般要求其绝缘电阻 > 11\10至<201\1 Ω (可参见中华人民共和国电力行业系列标准, 例如 DL/T5161.7-2002《电 气装置安装工程质量检验及评定规程 (旋转电机施工质量检臉)》等); 对于 通讯、 计算机、 车辆电器装置、 医疗电气设备等普通电器设备, 一般要求 其绝缘电阻 > 20 ]\10至<100]\10 (可参见《中华人民共和国电子行业标准》 系列, 《中华人民共和国通讯行业标准》 系列, 《中华人民共和国计算机 行业标准》 系列, 例如 GB6649-86《半导体集成电路总规范》 、 IPC 9201 《表面绝缘电阻手册》等); 对于采用印刷电路板、基板等组成的精密电器 设备, 一般要求其绝缘电阻 > 100 ΜΩ (可参见《中华人民共和国电子行业 标准》 系列, 《国际印刷电路行业标准》 系列等, 例如 IPC-CC-830B《印 刷版组装电器绝缘性能和质量手册》、 GB 4793《电子测量仪器安全要求》、 GJB1717-93《通用印刷电路板连接器总规范》等)。 由于不同的电器设备 对绝缘电阻的要求不同, 而采用同一种配方的针对电器设备的灭火组合 物, 在灭火效能和成本造价上都有不适当的问题存在。 因此, 包括本发明 的在先专利在内, 其药剂中的组分及其含量设计不够完善, 某些技术特性 参数需要改进。 在本发明以前的现有技术中, 除上述几项技术之外, 尚未 发现适用于精密电器设备的不降低灭火效能的气溶胶灭火组合物的专门 技术问世。
发明内容
针对上述现有技术中存在的问题, 本发明的目的在于提供一种较现有 技术更加合理的,环境友好的,适用于精密电器设备的气溶胶灭火组合物。
本申请的发明人近年来对热气溶胶灭火技术的深入研究表明, 灭火浓 度取决于灭火药剂的质量以及药剂成分本身固有的物理化学特性。 灭火剂 的燃速又与氧平衡的设计、 氧化剂、 可燃剂的选择等因素有关。 为了达到 本发明目的,必须从几个方面进行更为深入的工作,(1)在充分考虑点火性、 安全性和化学兼容的前提下设计灭火能力; (2)在负氧平衡的设计原则下, 采用非完全钾盐氧化剂设计; (3)组合物的成分尽可能简化, 避免产生不必 要的有害物质。
本申请的发明人在经过多次的氧化剂、 可燃剂的筛选、 燃烧反应速度 调整试验、灭火气溶胶残渣量试验、冷却技术试验、灭火剂微粉技术试验、 固体微粒吸湿性绝缘性试验等, 最终确定了本发明适用于精密电器设备的 气溶胶灭火组合物技术方案。
本发明适用于精密电器设备的气溶胶灭火组合物, 包含氧化剂、 可燃 剂、 粘合剂和添加剂, 其特征在于: 灭火组合物中的氧化剂为钾盐氧化剂 和锶盐氧化剂的混合物; 可燃剂选自硝酸胍、 J ^酸胍、硝酸三氨基胍、 硝酸二氨基胍中的一种或多种的组合; 添加剂选自铝粉、 镁粉、 碳粉、 碳 酸镁、 碳酸钙、 钾长石中的一种或多种的组合; 粘合剂选自酴醛树脂、 环 氧树脂、 丙烯酸树脂中一种或多种的組合; 并且灭火组合物中各组分的质 量百分含量为:
钾盐氧化剂: 大于或等于 5%至小于 15%;
锶盐氧化剂: 大于等于 52%至小于或等于 60%;
可燃剂: 10%至 25%; 添加剂: 2%至 20%;
粘合剂: 2%至 20%。
发明详述
可以用于本发明灭火组合物中的锶盐为硝酸锶、 氧化锶、 碳酸锶、 亚 硫酸锶、 焦磷酸锶、 溴化锶、 重铬酸锶、 高锰酸锶、 钼酸锶、 六硼化锶中 的一种或 2 ~ 3种的组合; 而钾盐为硝酸钟、 氯酸钾、 高氯酸钾、 氯化钾、 碳酸钾、柠檬酸钾中的一种或 2 ~ 3种的组合;所述的钾盐氧化剂还可由重 碳酸钠、 硝酸钠、 高氯酸钠、 硝酸铵、 高氯酸铵、 硝酸钡、 硝酸铯中的一 种或 2 ~ 3种组合部分或全部替代。
可以用于本发明灭火组合物中的可燃剂还可为五氨基四唑及其盐、 双 四唑及其盐、 重氮氨基四唑及其盐、 重氨四唑二聚物及其盐中的一种或多 种的组合。
可以用于本发明灭火组合物中的添加剂还可为邻苯二朌硼酸钟及其 盐、 羟基苯甲酸及其盐、 安息香酸及其盐、 棕榈酸及其盐、 硝酸铵、 高氯 酸钾、 氯化钾、 氧化铜、 氧化铁、 酞菁铜、 铁氰化钾、 六亚曱基四胺中的 一种或多种的组合。
可以用于本发明灭火组合物中的粘合剂还可为聚四氟乙烯、 乙烯聚合 物、 硝化纤维素、 三醛酸甘油酯、 聚乙酸乙烯酯、 密胺树脂中的一种或多 种的组合。
本发明灭火组合物中的氧化剂、 可燃剂、 粘合剂、 添加剂颗粒的最大 平均直径在 50/tm以内。
根据本发明的一个优选实施方案, 气溶胶灭火组合物包含:
硝酸钾: 5% - 14%
硝酸锶: 52% - 60%
硝酸胍: 10 - 25%
铝粉: 2% - 10%
酚酪树脂: 2% ~ 10%。
根据本发明的另一优选实施方案, 气溶胶灭火组合物包含:
高氯酸钾: 5% - 14% 氧化锶: 52%~60%
氨 酸胍: 10-25%
六亚甲基四胺: 2%~10%
环氧树脂: 2%~10%。
根据本发明的再一优选实施方案, 气溶胶灭火组合物包含:
碳酸钾: 5% - 14%
焦磷酸锶: 52% ~ 60%
五氨基四唑或其盐: 10~25%
氧化铜: 2%~10%
丙烯酸树脂: 2%~10%。
根据本发明的又一优选实施方案, 气溶胶灭火组合物包含:
氯酸钾: 5% - 14%
重铬酸锶: 52% - 60%
重氮氨基四唑或其盐: 10~25%
酞菁铜: 2%~10%
环氧树脂: 2%~10%。
本发明的气溶胶灭火组合物用于朴灭具有精密电器设备灭火空间的 火灾后, 其精密电器设备的绝缘电阻大于 100ΜΩ。
本申请的发明人通过对氧化剂、 可燃剂、 粘合剂、 添加剂组分和配比 的反复筛选、 试验, 所确定的适用于精密电器设备的气溶胶灭火组合物技 术方案,经多次试验证明,灭火后精密电气设备的绝缘电阻均高于 100ΜΩ, 同现有技术相比, 不仅达到了本发明的灭火后不对精密电器设备造成二次 损害之目的, 同时保证了应有的灭火效能, 是新一代有针对性地专用高效 气溶胶灭火组合物。
实施例
下面通过下列实施例来详细描述本发明, 但这些实施例并不构成对本 发明范围的限制。
按照下表所示配方配制本发明的适用于精密电器设备的气溶胶灭火 组合物并根据下列说明测定沉降物绝缘电阻: 组分 组分质 i:百分
名称 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 例 1 例 2 伟 例 5 例 6 例 7 例 8 例 9 例 10 高氯酸钾 13 14
硝酸钾 14 14 碳酸钾 14
氯酸钾 14
柠檬酸钾 12
重碳酸钠 10
硝酸钡 12
硝酸铯 14
硝酸锶 53 52 重铬酸锶 56
焦磷酸链 54
氧化锶 56
溴化锶 58
六硼化锶 56
碳酸锶 60 58 53
硝酸胍 24 23 22 25 J ^酸胍 22
五氨基四唑 22 22 24
重氮氨基四唑 23 24
铝粉 5 4
安息香酸
酞菁铜 3
羟基苯曱酸 4 氧化铁 3
氧化铜 4 3
铁氰化钾 2
六亚曱基四胺 5 4 5
丙烯酸树脂 6 5 聚四氟乙烯 4 4
环氧树脂 4 4 4
酚醛树脂 4 5
沉降物绝缘 >110 >110 >105 >103 >120 >108 >120 >1200 >110 >100 电阻值 ΜΩ ΜΩ ΜΩ ΜΩ ΜΩ ΜΩ ΜΩ ΜΩ ΜΩ ΜΩ 1、 丙烯酸树脂: 西安树脂厂产 104型; 聚四氟乙烯: 四川成光厂产颗 粒型; 环氧树脂: 大连齐化厂产 E51型; 酴酸树脂: 浙江杭州顺祥产 F-23 型
2、 气溶胶灭火剂沉降物绝缘电阻测定按照 GB499.1-2007.10.2条进行。 试驗设备包括试验箱 1M3(1 X 1 X lm), 测量范围为 0.1ΜΩ-500ΜΩ的高阻 计 (上海精密仪器厂产 ZC36型高阻计)、培养 i、精密天平和气溶胶发生器。
3、 试验板为 100 x 100 X lmm的白色 PVC试样板, 用压力机将 100g气 溶胶发生剂在 5Mpa的压力下压入直径为 40mm、 高为 100mm的药筒内, 装 入电启动器, 然后将药筒装入小型发生器中, 发生器内不加冷却剂。
4、试验时, 用镊子将清洗干净的试板放于培养亚内,培养亚平放于试 验箱中央的 250mm高试验架上。将发生器置于试验箱一角,喷口背对试板, 连接启动线, 封闭试验箱门, 启动装置同时秒表计时, 20min后取出装有 试板的培养皿, 将其放入温度 35" 、 湿度 90%的恒温恒湿箱, 保持 30min, 取出试板立即进行电阻测量。

Claims

权利要求书
1. 适用于精密电器设备的气溶胶灭火组合物, 包含氧化剂、 可燃剂、 粘合剂和添加剂, 其特征在于所述灭火组合物中的氧化剂为钾盐氧化剂和 锶盐氧化剂的混合物; 可燃剂选自硝酸胍、 氨 酸胍、 硝酸三氨基胍、 硝酸二 ^胍中的一种或多种的组合; 添加剂选自铝粉、 镁粉、 碳粉、 碳 酸镁、 碳酸钙、 钾长石中的一种或多种的组合; 粘合剂选自酚酪树脂、 环 氧树脂、 丙烯酸树脂中一种或多种的组合; 并且所述灭火组合物中各组分 的质量百分含量为:
钾盐氧化剂: 大于或等于 5%至小于 15%;
锶盐氧化剂: 大于 52%至小于或等于 60%;
可燃剂: 10%至 25%;
添加剂: 2%至 20%;
粘合剂: 2%至 20%。
2.根据权利要求 1所述的适用于精密电器设备的气溶胶灭火组合物, 其特征在于所述的锶盐为硝酸锶、 氧化锶、碳酸锶、 亚硫酸锶、 焦磷酸锶、 高锰酸锶、 溴化锶、 重铬酸锶、钼酸锶、 六硼化锶中的一种或多种的组合。
3.根据权利要求 1所述的适用于精密电器设备的气溶胶灭火组合物, 其特征在于所述的钾盐为硝酸钾、 氯酸钾、 高氯酸钾、 氯化钾、 碳酸钾、 拧檬酸钾中的一种或多种的组合。
4. 根据权利要求 1至 3任一所述的适用于精密电器设备的气溶胶灭火 组合物, 其特征在于所述的钾盐氧化剂由重碳酸钠、 硝酸钠、 高氯酸钠、 硝酸铵、 高氯酸铵、硝酸钡、硝酸铯中的一种或多种组合部分或全部替代。
5. 根据权利要求 1至 3任一所述的适用于精密电器设备的气溶胶灭火 组合物, 其特征在于所述可燃剂由五氨基四唑及其盐、 双四唑及其盐、 重 氮氨基四唑及其盐、 重氨四唑二聚物及其盐中的一种或多种的组合部分或 全部替代。
6. 根据权利要求 1至 3任一所 的适用于精密电器设备的气溶胶灭火 组合物, 其特征在于所述添加剂由邻苯二酚硼酸钟及其盐、 羟基苯甲酸及 其盐、 安息香酸及其盐、 棕榈酸及其盐、 硝酸铵、 高氯酸钾、 氯化钾、 氧 化铜、 氧化铁、 酞菁铜、 铁氰化钾、 六亚曱基四胺中的一种或多种的组合 部分或全部替代。
7.根据权利要求 1至 3任一所述的适用于精密电器设备的气溶胶灭火 组合物, 其特征在于所述粘合剂由聚四氟乙烯、 乙烯聚合物、硝化纤维素、 三醛酸甘油酯、 聚乙酸乙烯酯、 密胺树脂中的一种或多种的组合部分或全 部替代。
8. 根据权利要求 1至 7任一所述的适用于精密电器设备的气溶胶灭火 组合物, 其特征在于所述的氧化剂、 可燃剂、 粘合剂、 添加剂的颗粒最大 平均直径在 50μιη以内。
9. 根据权利要求 1至 7任一所述的适用于精密电器设备的气溶胶灭火 组合物, 其特征在于该类气溶胶灭火组合物用于朴灭具有精密电器设备灭 火空间的火灾后, 其精密电器设备的绝缘电阻大于等于 100ΜΩ。
10.根据权利要求 1至 7任一所述的适用于精密电器设备的气溶胶灭火 组合物, 其特征在于所述组合物包含:
硝酸钾: 5% - 14%
硝酸锶: 52% - 60%
硝酸胍: 10 - 25%
铝粉: 2% ~ 10%
酚醛树脂: 2°/。~ 10%。
11.根据权利要求 1至 7任一所述的适用于精密电器设备的气溶胶灭火 组合物, 其特征在于所述组合物包含:
高氯酸钾: 5% - 14%
氧化锶: 52% - 60%
氨基硝酸胍: 10-25%
六亚甲基四胺: 2% - 10%
环氧树脂: 2% ~ 10%。
12.根据权利要求 1至 7任一所述的适用于精密电器设备的气溶胶灭火 组合物, 其特征在于所述组合物包含: 碳酸钾: 5% ~ 14%
焦磷酸链: 52% ~ 60%
五氨基四唑或其盐: 10 - 25%
氧化铜: 2% - 10%
丙烯酸树脂: 2% ~ 10%。
13.根据权利要求 1至 7任一所述的适用于精密电器设备的气溶胶灭火 组合物, 其特征在于所述组合物包含:
氯酸钾: 5% ~ 14%
重铬酸锶: 52% - 60%
重氮氨基四唑或其盐: 10 ~ 25%
酞菁铜: 2% - 10%
环氧树脂: 2% ~ 10%。
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RU2010104458A (ru) 2011-08-20
CN101088578A (zh) 2007-12-19
BRPI0721841A2 (pt) 2015-05-05
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AU2007356394A1 (en) 2009-01-15
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