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1 前言原化学工业部于1987年12月31日颁发的《液化气体铁路罐车安全管理规程》,没有将滑管液位计列为安全附件。因此,滑管液位计是属于由企业标准控制的产品,虽其法兰阀座与罐体人孔盖上螺栓孔的连接尺寸相同,但其它各部尺寸随制造厂家而异,这种状况至今未有改变。滑管液位计是用来测量液化石油气的液位和充装量的一种计量仪表,它保证罐内液化石油气
1 Preface The Ministry of Chemical Industry, December 31, 1987 issued the “liquefied gas railway tanker safety management procedures”, the slide tube level gauge is not listed as a safety annex. Therefore, the slide pipe liquid level gauge belongs to the product controlled by the enterprise standard. Although the connecting dimensions of the flange valve seat and the bolt hole of the manhole cover of the tank body are the same, the dimensions of other departments vary from manufacturer to manufacturer No change. Slide tube level gauge is used to measure the liquid level and filling of liquefied petroleum gas, a measuring instrument, which guarantees the tank liquefied petroleum gas