地膜土豆的种植时间:我帮翻译成英文,我将感激不尽

来源:百度文库 编辑:中科新闻网 时间:2024/04/30 12:27:30
在整个世界的科学技术迅猛发展,经济全球化,人口不断增长,工业文明达到空前高度的现代社会,地球的污染已日趋严重。在使得人类向自然不断索取的同时,意识到了环保工作、可持续发展的重要性。这使得本课题相当有意义,本课题是对一个涂层甲苯回收的工艺流程的监控系统进行设计。整个工艺流程的方方面面就不再详述,只说明与实现自动监控相关的部分。本流程有三个步骤:吸附;解吸;干燥,在整个流程工作流程中,工作着一个或两个的溶剂风机,而在干燥步骤中,干燥风机运转。由4台吸附箱上上挡板阀、两通阀、三通阀和蒸汽球阀的上下位或开关位来实现这三个步骤,所以系统采用气动系统控制。此外,采用组态王程序设计的人机界面对整个流程进行工控机监控,提供了吸附箱温度的实时显示。其界面不但实现了对工艺流程的安全监控,还设置了自动/手动的操作方式,方便又安全。在现场还有用于调试和故障检测的手动控制按钮与系统运行状况指示灯。说明书对气压系统的设计流程进行了说明,完成了气压系统的方案设计、参数计算,并设计出完整的气压系统原理图;对PLC控制系统进行硬件设计,包括对外围的电器元件的选型计算;并且对PLC程序和组态王设计界面进行了截图说明。在PLC的程序中注重与用户的互动,可以自由让用户调整吸附箱吸附、解吸、干燥的时间;注重区别各个吸附箱以及同一吸附箱中不同阀的分别控制,可以保证各个阀的互锁,确保整个系统稳定运行。

关键词:涂层甲苯 气压传动 PLC控制 工控机监控

Throughout the world with rapid scientific and technological development, economic globalization, population growth, industrial civilization reached unprecedented high modern society, the earth has become increasingly serious pollution. In which human nature to constantly obtain the meantime, aware of the environmental protection and sustainable development. This makes the very interesting topic, this topic is a coating toluene recovery processes for the monitoring and control system design. Not elaborate on all aspects of the processes, and achieve automatic control only on the relevant parts. This process has three steps : adsorption; Dioxin; Dry in the entire process workflow, the work of one or two solvents air-compressors, and in dry steps, dry air-compressors operating. 4 Taiwan by adsorption on the back plate valve boxes, two-valve, three-way valve and the steam Qiufa next spaces or switch spaces to achieve these three steps, using pneumatic system control system. Moreover, the use of the computer interface design Zutai Wang procedures for the monitoring of the entire process for disposals provides real-time temperature adsorption boxes shown. Its interface not only to achieve a given security control, but also set up automatic / manual operation, convenience and security. Also at the scene for debugging and testing of mechanical failure and system operation in light control button. Statement of pressure on the system design flow, the pressure to complete the system in programme design, parameters, and design integrity of the pressure system theory map; Plc control system for hardware design, including the electrical components of the external models calculated; And the Plc procedures and the interface design Zutai Wang Jietu statement. Plc focus on the procedure in the interaction with the users, so that users can freely adjust adsorption boxes adsorption, desorption, dry time; Focus on the distinction between the various adsorption boxes and boxes of the same adsorption different devices separately control various devices can ensure efficient and ensure that the entire system is stable operation.
Keywords : coatings toluene pressure transmission Plc control surveillance aircraft disposals

Throughout the world with rapid scientific and technological development, economic globalization, population growth, industrial civilization reached unprecedented high modern society, the earth has become increasingly serious pollution. In which human nature to constantly obtain the meantime, aware of the environmental protection and sustainable development. This makes the very interesting topic, this topic is a coating toluene recovery processes for the monitoring and control system design. Not elaborate on all aspects of the processes, and achieve automatic control only on the relevant parts. This process has three steps : adsorption; Dioxin; Dry in the entire process workflow, the work of one or two solvents air-compressors, and in dry steps, dry air-compressors operating. 4 Taiwan by adsorption on the back plate valve boxes, two-valve, three-way valve and the steam Qiufa next spaces or switch spaces to achieve these three steps, using pneumatic system control system. Moreover, the use of the computer interface design Zutai Wang procedures for the monitoring of the entire process for disposals provides real-time temperature adsorption boxes shown. Its interface not only to achieve a given security control, but also set up automatic / manual operation, convenience and security. Also at the scene for debugging and testing of mechanical failure and system operation in light control button. Statement of pressure on the system design flow, the pressure to complete the system in programme design, parameters, and design integrity of the pressure system theory map; Plc control system for hardware design, including the electrical components of the external models calculated; And the Plc procedures and the interface design Zutai Wang Jietu statement. Plc focus on the procedure in the interaction with the users, so that users can freely adjust adsorption boxes adsorption, desorption, dry time; Focus on the distinction between the various adsorption boxes and boxes of the same adsorption different devices separately control various devices can ensure efficient and ensure that the entire system is stable operation. Keyword : coatings toluene pressure transmission Plc control surveillance aircraft disposals