Several upgrading and modernization of the sulphuric acid plants were completed in minimum shutdown time and according to practical condition of plants, resulting in significant economical benefits. 通过采取速度制胜和因地制宜的策略,改造屡获成功,给企业带来较好的经济效益。
Start-up, shutdown and resume functions all seemed to take less time than with either Vista or XP. 启动、关机和重启的时间似乎比vista和xp都要少。
AC fault security power source system is to provide alternating current for unit safety shutdown when power cut happens for a long time due to power grid failure or other reasons. 交流事故保安电源系统是当电网发生事故或其他原因致使火电厂厂用电长时间停电时,提供机组安全停机所必需的交流用电系统。
How to improve efficiency of equipment and reduce shutdown time is an important part of enterprise production and equipment management. 如何提高设备的使用效率,减少设备时间稼动损耗是企业生产和设备管理的重要内容之一。
This application was set to run forever when the listener was enabled. You may wish to go to the advanced page and modify the shutdown time. 启用了侦听器后,此应用程序已设置为永久运行。您可能希望转至高级页并修改关闭时间。
Week of life, you can follow the law, draw up procedures, boot, shutdown, heating, thermostats and other users at different running time required to reach different temperatures to save energy. 可以按照你一周的生活规律,编制好程序,进行开机,关机,升温,恒温等运行使用户在不同的时间段达到不同的温度的要求,达到节能效果。
Taking Chengdao Oil Field as an example, the methods for calculating the shutdown time, temperature dropping and restart pressure of submarine pipeline are introduced. 以埕岛油田为例,介绍海底管线停输时间及再启动压力的计算方法。
Corrosion prevention of thermodynamic equipment during its shutdown time is one of the daily tasks. Nowadays, there are many ways for its prevention. 热力设备的停备用腐蚀防护是日常工作之一,目前保护的方法有多种,采用有机成膜缓蚀剂来抑制停用时的腐蚀,是一种操作简便、行之有效的方法。
It is pointed out that contaminant formation relates to transportation distance, oil types, throughput, shutdown time, terrain, etc. 指出混油的形成与输送距离、油品种类、输量、停输时间、地形等有关。
The results show that some generators need to run to avoid much more losses resulting from continuous unit shutdown at the coming time even if they gain negative profit resulting from unit operating at the current time while the minimum start-off time constraints of generators are considered. 仿真结果表明,考虑最小开停机时间约束时,即使某些时段利润为负,但为了避免后续时段的持续停机使利润受到更大的损失,一些机组在这些时段仍需开机;
Generally desanding of large tank adopts manual desanding that requires personnel to enter the tank after shutdown, with high work burden, severe environment, long shutdown time and low efficiency. 大型储罐内的清砂一般采用停产后人工进罐清除法,工作强度大,环境恶劣,停产时间长,收效低。
Large flux and continuously workable air compressor units jointly developed by the author and certain air compressor factory are studied, which is characterized by Programmed Logical Control ( PLC) of sequential startup, circular stop stand-alone, and controllable shutdown time. 介绍了笔者与某空气压缩机厂联合研制的可编程控制器分时顺序启动、循环停止单机、控制休车时间的大流量、可连续工作的空气压缩机组。
The paper describes the application and renovation of the large automatic frame filter press imported from Japan during the arsenic oxide production, and the progress made through renovation in terms of reduction of shutdown time and improvement of working conditions. 本文论述了从日本进口的大型全自动板框式压滤机在氧化砷工艺中的应用与改进,以及通过改进在降低故障率、改善操作环境方面所取得的进步。
The Determination of Safe Shutdown Time for Waxy Crude Oil Pipeline 含蜡原油管道安全停输时间的确定
Discussion on Full Load Slide Shutdown and Cooling time of Enlarged CFB Unit 大型CFB扩大单元满负荷滑停与机炉冷却时间的探讨
The second is choosing reasonable startup or shutdown style, control every target in safe range at the same time of acceleration through improving operational procedure. 第二是选择合理的启停方式,通过改进操作程序,在加快启停速度的同时,控制各项指标在安全范围之内,实现优化启停。
The change of the atmosphere temperature and the initial time of pipeline shutdown which affect the safety margin of pipeline shutdown is considered in the calculation first time. 计算过程考虑了大气温度变化和起始停输时间点对安全停输时间的影响。
For the sake of transporting oil safety, it is necessary to study the situation of radial temperature drop to make sure accurately the allowed shutdown time on the basis of the axial temperature drop obtained. 为了确保安全经济地输油,在得出停输后轴向温降规律的基础上,还必须研究管路停输后的径向温降情况,以便更准确地确定允许停输时间。
In order to determine pipeline's safety shutdown time under new process condition, restart after shutdown test is carried out at Wei Jing pipeline site. 为了确定新工艺条件下管道的安全停输时间,在魏荆管道进行了停输再启动的现场试验。
The determination of minimum allowable inlet temperature should be based on the allowable shutdown time, rheology and yield behavior of crude oil, temperature condition, start-up pressure and flow rate to do a quantitative calculation and combine with the results of site test. 综合分析结果表明,含蜡原油管道最低允许进站温度,应该根据允许停输时间、原油流变和屈服特性、温度条件、启动压力和排量等条件定量计算,并与现场试验相结合来确定。
HAZOP research has been carried out with the emphasis on LPG storage tank system, which is characterized by high hazard, long shutdown time and large economic loss. Reliability and safety of the project have been improved. 在该装置公用设施的设计中,通过HAZOP研究,尤其是对液化石油气储罐系统等危险性大、停车时间长、经济损失大的系统进行了重点HAZOP研究,提高了项目的可靠性和安全性。
As for the arsenic oxide is highly toxic, the production equipment is required to have the characteristics of less shutdown time, high automatic level and good leakage-proof so as to reduce labour intensity and ensure safe production. 由于氧化砷有剧毒,要求其生产设备具有故障率低、自动化程度高、无泄漏性能好等优点,以达到降低劳动强度、安全生产的目的。
Control Parameters of Safe Shutdown Time for Nuclear Power Plants under Strong Earthquake 强震作用下核电站安全停堆时间的控制参数
Through 3 stages of technical improvement and optimizing operation conditions, the shutdown times of outside circulation system were reduced, device running time increased 710 h, PE production capability increased 1.7 t/ h. 经过三个阶段的技术改造和操作条件优化,外循环系统停车次数下降,运行周期上升710h,聚乙烯生产能力比采用浆液外循环技术前平均增加1.7t/h。最佳操作条件循环量400m3/h;
Proceeding from the fact that some nonferrous mines are confronted with problems of almost exhausted resources and subsequent difficulties of management, a strategic shift of shutdown nonferrous mine enterprises should be put on the agenda in time and should be further subject to careful scrutiny. 针对我国一些有色金属矿山面临资源枯竭、企业经营困难的问题,国家实行了矿山关闭破产政策,这些企业的战略转移成为当务之急。
Finally, effects of fuel price, market electricity price, shutdown time, degradation rate and washing number on optimal crank washing interval were studied also. 最后,分析了燃料价格、上网电价、停机时间、恶化速率和水洗次数对水洗周期的影响。
Pipeline after shutdown, the tube temperature of crude oil decreased with time, wax crystals in the waxy crude oil gradually precipitated. 管道停输后,管内含蜡原油温度随着停输的时间增加而逐渐降低,管道内部逐渐有石蜡晶体析出。
By changing various physical parameters of crude oil pipeline simulation stops radial temperature field, and allow the shutdown of each parameter on the time of analysis. 通过改变原油的各种物性参数模拟停输管道的径向温度场,并对每个参数对允许停输时间的影响进行了分析,其中析蜡潜热对热油管道允许停输时间的影响最大。