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一、液氨罐除了液氨贮运供应站用的各种液氨贮罐外,还有直接服务于液氨直接施肥技术的液氨汽车槽车罐和液氨施肥拖车罐.前者主要固定在汽车底盘上构成液氨汽车槽车.后者主要直接用于田间液氨施肥或往拖拉机作业罐(或钢瓶)灌充液氨,其结构形式基本相同.这里以汽车槽车罐为主,介绍液氨罐的主要特点.(一)主要结构特点液氨罐的基本部件主要包括筒体,封头、入孔、气液相管、气相接缘和液相接缘,安全阀接缘、压力表接缘、温度计接缘、支座、径向防冲板等.1.筒体与封头筒体大多采用圆柱形,个别型号槽车液氨罐制成变径圆柱型.罐体(筒体和封头)材料为16MnR(16Mn容器钢),在国内普遍采用属于50公斤级的低合金高强度钢.多采用冷卷成型.封头多采用标准椭圆型封头,广泛采取热冲压成型.
A liquid ammonia tank In addition to liquid ammonia storage supply station with a variety of liquid ammonia storage tank, there are direct services in liquid ammonia direct fertilizer technology, liquid ammonia car tank tank and liquid ammonia fertilizer trailer tank. The former is mainly fixed in Car chassis liquid ammonia tank car, which is mainly used directly in the field of liquid ammonia fertilizer or to the tractor operating tank (or cylinder) filling liquid ammonia, its structure is basically the same. Here to tank car tank mainly introduced The main features of the liquid ammonia tank (A) The main structural features The basic components of liquid ammonia tank, including the main cylinder, head, into the hole, gas and liquid phase pipe, gas phase and liquid phase margin, safety valve margin, pressure Table edge, thermometer flanges, bearings, radial anti-red sheet, etc. Cylinder and head cylinder mostly cylindrical, cylinder diameter of individual models made of ammonia cylinder cylinder. Body and head) material is 16MnR (16Mn container steel), commonly used in the domestic low-alloy high-strength steel belonging to 50kg grade. Most use of cold roll forming. Sealing head more standard oval head, widely taken hot stamping .