中药企业MES系统的研发及应用

该文针对中药制造企业计划层与控制层相互脱节的现状,即决策管理层的管理信息如ERP和底层的控制系统(DCS)处于相对独立的状态,在对中药制造企业资源管理现状分析的基础上,利用过程运行信息,以产品产量、质量、节能降耗、过程优化等为目标,研究适合中药制造企业的MES系统,并针对某中药企业做应用研究,证实其有效提高了企业管理水平,并降低能耗.     

Behaviors of Electron Heat Transportation in HT-7 Sawtoothing Plasma

It is found that in HT-7 ohmic plasma, main energy loss comes from electron heat conduction, hence quantitative data of electron heat diffusivity is a very important issue for investigation of electron heat transportation behavior in different target plasmas so as to get high performance plasma. A time-to-peak method of the heat pulse propagation originating from the sawtooth activity on the soft x-ray intensity signal has been adopted to experimentally determine electron heat diffusivity χe^HP on the HT-7 tokamak. Aiming to improve the signal-to-noise (S/N) ratio of the original signal to get a stable and reasonable electron heat diffusivity χe^HD value, some data processing methods, including average of tens of sawteeth, is discussed. The electron heat diffusivity χe^HP is larger than χe^PB which is determined from the balance of background plasma power. Based on variation of the measured electron heat diffusivity χe^HP , performances of different high confinement plasmas are analyzed.     

The Study of Heat Pulse Propagation on HT—7 Tokamak

The propagation of heat pulses originating from sawtooth activity has been studied on the HT-7 tokamak.Two theoretical models are used for determining electron heat diffusivity from the experimental data measured by a diagnostic system of soft x-ray diode-array.The results show that one model caaled dipole model is more suitable for HT-7 tokamak.In order to improve the signal-to-noise(S/N) ratio of the original signals,over a few tens of sawteeth are averaged to generatc nicc wavcforms.The apace-time evolution is found to be diffusive in character,which is consistent with the theoretical model.The electron heat diffusivity determined from heat pulse propagation is larger than determined from background plasma power balance.The variation of Xe in different discharge phases has been also discussed.     

中控生产管理及安全应急指挥项目助力索普集团实现“数智化”安全生产

1项目背景江苏索普集团位于长江和京杭大运河交汇处的历史文化名城江苏镇江。目前为中国石化百强企业、国家高新技术企业、全国工业品牌培育示范企业,同时也是《工业用冰乙酸》、《工业用乙醇》、《工业冰醋酸单位产品能源消耗限额》、《工业用甲醇》、《次氯酸钙(漂粉精)》国家标准,以及《发泡剂ADC》行业标准的制定单位之一,在化工行业内具有举足轻重的地位。     

在线TOC分析仪在石化工业中的应用

介绍在线总有机碳(TOC)分析仪主要分析原理和方法、检测器的类型和进样方式的种类.根据石化企业生产中各种循环水、工艺用水和废水等具有的特点,通过在线TOC分析有机物浓度,可以很好的监测和控制水质指标,达到节约用水和控制污染的目的.