串联式合成氨厂变换工段各变换炉入口汽气比值测定系统

System for determining steam-gas ratio of inlets of all shift converters at conversion section of tandem type synthesis ammonia plant

Abstract

The invention relates to a system for determining the steam-gas ratio of inlets of all shift converters at the conversion section of a tandem type synthesis ammonia plant. The system comprises an intelligent secondary meter cluster unit with a communication function and a gas composition analytical unit, wherein a temperature adjusting device is arranged between two adjacent shift converter sections; a temperature adjusting method comprises the steps of adding steam, spraying water for chilling and heat exchange; the determination system comprises a sensor group unit arranged on a series-connected line of a plurality of shift converter sections and pipelines, the sensor group unit comprises a sensor combination arranged in a main pipeline in front of a shift converter section to be detected for determining the temperature and the pressure of gas in the main reaction pipeline before steam adding or cold water chilling, a sensor combination for determining the temperature and the pressure of the gas in the main reaction pipeline after steam adding or cold water chilling, and a sensor combination for measuring the temperature and the pressure of chilled water or steam in a pipeline where the steam or chilled water is added. The system can statically, automatically and continuously measure the steam-gas ratios of all shift converter sections.
本发明涉及一种串联式合成氨厂变换工段各变换炉入口汽气比值测定系统,其包括带通讯功能的智能二次仪表组单元和气体成分分析单元,两相邻变换炉段之间设置有温度调节装置,温度调节方法分为添加蒸汽,喷水冷激和热交换;测定系统包括安装于若干串联的各变换炉段和管道上的传感器组单元,传感器组单元包括设置在待测的变换炉段前主管道内用于测定添加水蒸汽或冷激水前反应主管道内气体温度和压力的传感器组合,用于测定添加水蒸汽或冷激水后反应主管道内气体温度和压力的传感器组合以及设置在用于测定添加水蒸汽或冷激水管道内用于测量冷激水或水蒸汽温度和压力的传感器组合。本发明可静态、在线、自动连续测量各变换炉段的汽气比值。

Claims

Description

Topics

Download Full PDF Version (Non-Commercial Use)

Patent Citations (5)

    Publication numberPublication dateAssigneeTitle
    CN-102401772-AApril 04, 2012袁志军Humidity method for measuring ratio of water vapor to dry gas
    CN-1090391-AAugust 03, 1994陈佛水一氧化碳变换过程蒸汽比例测定控制仪技术
    CN-1129806-AAugust 28, 1996湖北省化学研究所Intellectual vapor-air ratio determinating meter for converting section of synthesis ammonia plant
    CN-1186952-AJuly 08, 1998湖北省化学研究所Detecting technology for steam and dry air ratio
    CN-1238452-ADecember 15, 1999湖北省化学研究所添加蒸汽过程蒸汽和干气比值测定仪

NO-Patent Citations (3)

    Title
    李正军 等: "在合成氨生产 中变换工段的自动控制", 《工业仪表与自动化装置》, no. 1, 31 December 1996 (1996-12-31)
    田建艳: "一种用于测试合成氨变换反应中汽气比的新方法", 《燃料化学学报》, vol. 27, no. 1, 28 February 1999 (1999-02-28)
    袁志军: "合成 氨厂变换工段汽气比值测定仪", 《化工设计通讯》, vol. 24, no. 4, 27 December 1998 (1998-12-27)

Cited By (0)

    Publication numberPublication dateAssigneeTitle