论文部分内容阅读
利用夹点技术对抚顺石化公司石油二厂北蒸馏车间原油换热网络进行了节能分析及优化设计。该方法的特点是首先确立能量目标，为了满足这一能量 目标建立了夹点匹配的可 行性规则，然后结合一些经验规则进行综合分析及匹配，最后得到投资和能耗操作费用较优的换热网络。新的换热网络同原有的换热网络相比，一个主要优点是省去了原换热网络中 需要加热炉提供的部分热 量， 从而节省大量燃料油。不仅节省了９８ ．３６ ×１０５ ｋ Ｊ／ｈ 的加热负荷，还节省了相同数量的冷却负荷。避免了公用工程的双重浪费。换热器的数目由１６ 个减少为１２ 个。冷却器数目由９ 个减少为３ 个。剩余的热物流一部分作为网络中加热器的热负荷，其余部分全部用来发生低压蒸汽。
The paper analyzes and optimizes the energy-saving analysis of the crude oil heat-exchange network in north distillation plant of Fushun Petrochemical Company No.2 Plant by using the pinch-point technology. The method is characterized by first establishing the energy target, establishing a feasible rule of pinch matching in order to meet this energy target, and then combining with some empirical rules for comprehensive analysis and matching, and finally obtaining the heat transfer with better investment and energy consumption operating cost The internet. One of the major advantages of the new heat exchange network compared to the original heat exchange network is that it eliminates the need for part of the heat provided by the furnace in the original heat exchange network and thus saves a lot of fuel oil. Not only saved 98. 36 × 105 kJ / h heating load, but also save the same amount of cooling load. Avoid double waste of utilities. The number of heat exchangers is reduced from 16 to 12. The number of coolers has been reduced from 9 to 3. The remaining part of the heat flow is used as the heat load of the heater in the network, and the rest is used to generate low-pressure steam.