【摘要】 水热媒余热回收装置平稳运行的关键是系统应处于热平衡状态。为分析影响系统热平衡的主要因素,以某延迟焦化加热炉水热媒系统为例,考察了热媒水流量、燃料单耗、空气用量和热媒水进烟气换热器温度等参数对系统热平衡的影响。结果表明,热媒水流量、燃料单耗及空气用量均是影响系统热平衡的重要因素,系统设计时应根据加热炉实际运行情况,确定合适的燃料单耗和空气用量作为设计基础。更多还原

【Abstract】 To keep the heat recovery unit with water as heat medium running steadily,it is essential that the system should be operated in heat balance.A heater of a delayed coking unit using water heat medium system is studied to analyze the factors affecting heat balance,such as water flow rate,fuel consumption,air consumption and temperature of water entering flue gas heat exchanger.Results indicate that the water flow rate,fuel consumption and air consumption are the main factors affecting the heat balance of system;based on the actual heater operation data,selecting suitable value of fuel consumption and air consumption as design basis in system design is important.更多还原