按照《石油化工可燃气体和有毒气体检测报警设计标准》（GB/T 50493-2019）第2.O.3条以及第3.0.1条的标准要求。对以下四种存储情况进行分析：

According to the requirements of Article 2.0.3 and Article 3.0.1 of the Design Standard for Combustible and Toxic Gas Detection and Alarm in Petrochemical Industry (GB/T 50493-2019). Analyze the following four storage scenarios:

　　（1）将火灾危险性类别为甲、乙类的气瓶存放在非甲乙类厂房。如果气瓶存放数量符合《建筑设计防火规范(2018年版)》（GB 50016-2014）标准条文说明第3.1.2条的要求，即便气瓶内气体全部泄漏，该厂房内部可燃气体浓度也无法达到爆炸下限，所以该场所不必设置可燃气体探测器。

(1) Store gas cylinders with fire hazard categories A and B in non A and B factory buildings. If the number of gas cylinders stored meets the requirements of Article 3.1.2 of the "Code for Fire Protection Design of Buildings (2018 Edition)" (GB 50016-2014) standard, even if all the gas inside the cylinders leaks, the concentration of combustible gas inside the factory cannot reach the lower explosive limit, so it is not necessary to install combustible gas detectors in the place.

　　（2）将可燃气体钢瓶存放在位于生产装置边缘的敞棚内。因为气瓶存放在开放的敞棚内，且不可能存放的多个气瓶的阀门同时失效泄漏可燃气体，即便单个气瓶内气体全部泄漏，该区域可燃气体浓度也无法达到爆炸下限，所以该区域不必设置可燃气体探测器。

(2) Store combustible gas cylinders in an open shed located at the edge of the production unit. Because gas cylinders are stored in open sheds, and it is impossible to store multiple cylinders with valves that fail simultaneously to leak combustible gas, even if all the gas in a single cylinder leaks, the concentration of combustible gas in the area cannot reach the lower explosive limit. Therefore, combustible gas detectors do not need to be installed in this area.

　　（3）将可燃气体钢瓶存放在气瓶间或气瓶库。因为气瓶间/库多为封闭式或半敞开式厂房，不利于泄漏气体扩散，且气瓶间/库的内部容积较小，单个气瓶内气体泄漏，该气瓶间/库可燃气体浓度就可能达到爆炸下限，所以气瓶间/库应设置可燃气体探测器。

(3) Store combustible gas cylinders in the cylinder compartment or cylinder storage. Because gas cylinder rooms/warehouses are mostly enclosed or semi open factories, it is not conducive to the diffusion of leaked gas, and the internal volume of gas cylinder rooms/warehouses is small. If gas leaks from a single gas cylinder, the combustible gas concentration in the gas cylinder room/warehouse may reach the lower explosive limit. Therefore, combustible gas detectors should be installed in the gas cylinder room/warehouse.

　　（4）毒性气体的储存。如果气瓶内的气体为《高毒物品目录》（卫法监发〔2003〕142号）中所列的气体或蒸气，以及《化学品分类和标签规范18部分：急性毒性》（GB 30000.18-2013）标准中，急性毒性危害类别为1类及2类的急性有毒气体，即便该气体具有可燃性，也应按照《危险化学品管理条例》（中华人民共和国国务院令 第591号第645号修正）第二十四条，“危险化学品应当储存在专用仓库、专用场地或者专用储存室内，并由专人负责管理”的要求进行储存,应按照《石油化工可燃气体和有毒气体检测报警设计标准》（GB/T 50493-2019）第3.0.1条的要求设置有毒气体探测器。

(4) Storage of toxic gases. If the gas in the gas cylinder is a gas or vapor listed in the "Catalogue of Highly Toxic Substances" (Wei Fa Jian Fa [2003] No. 142), as well as an acute toxic gas classified as Class 1 and Class 2 in the "Classification and Labeling Specification for Chemicals Part 18: Acute Toxicity" (GB 30000.18-2013) standard, even if the gas is flammable, it should be stored in accordance with Article 24 of the "Regulations on the Safety Management of Hazardous Chemicals" (State Council Order No. 591, No. 645 of the People's Republic of China), which states that "hazardous chemicals should be stored in dedicated warehouses, dedicated sites, or dedicated storage rooms, and managed by dedicated personnel", and should be stored in accordance with the "Design of Detection and Alarm for Combustible Gas and Toxic Gas in Petrochemical Industry". According to the requirements of Article 3.0.1 of GB/T 50493-2019, toxic gas detectors shall be installed.

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