基于PLC的污水处理系统外文翻译.doc

1、 昆明理工大学大学毕业设计 英文资料与中文翻译专业班级：自动化112班学生姓名：何荣法指导教师：张光辉学 院：信息工程与自动化学院2015年5月Application of control system on the base of PLC in sewage treatmentThe paper introduces a distributed control system of sewage treatment, and the core of the system is PLC. The structure of the control system, the assignment an

2、d implementation of the tasks, the control scheme and the design concept of program are expounded. The way of central monitoring management and dispersing control is used by the control system; the long一distance control and monitoring of field equipment are uncharged of the upper computer; the softw

3、are program of designs uses Intouch7. 0. The specific technology, equipment, the controlling of main parameter and several running data are uncharged of the PLC stations, and the software program of designs uses Concept 2. 2XL with online tracking and outline simulating. MB+ net is adopted by the co

4、mmunication between the upper computer and the PLC stations, with its simply building net, quickly running and stable communication. The automatic control of PLC has been successfully completed in sewage treatment, which has improved the operation efficiency and management level of sewage treatment

5、equipment Introduced to take PLC as the distribute type control system of core in the wastewater treatment system of apply. Concretely described the structure, mission of the control system an allotment and carry out, the way of control and the thought of the program design. The way controlled the c

6、oncentration monitor of the system adoption a management and scattered a control, the place of honor machine be responsible for the spot the long range of the equipments control and surveillance, software adoption Intouch7. 0 draw up. The PLC native station is responsible for to the concrete craft,

7、equipment and is mainly controlled parameter to carry on control and collect various movement data, the program design adoption have on-line follow with off-line imitate the Concept of true function 2. 2 XL software. Place of honor machine and of the PLC adoption set the net be quickly simple and ci

8、rculate speed, correspond by letter the stability strong MB net. The whole control system successfully solved the PLC controls a problem in the automation within wastewater treatment and raised a wastewater treatment equipments to circulate an efficiency and manage level.Recently, for carrying out h

9、igh quality, low consume, stable dependable movement. Domestic and international many wastewater treatment factories adopted a modern forerunner to control technique and calculator technique and constitute calculator direct, control thus, manage system. Make system excellent to turn movement. But th

10、e programmable logic controller(PLC) then take microprocessor as core. Synthesize the calculator technique automatically controls technique and correspondence technique but develops of a kind of new and in general use automatic control device. Have structure simple, function superior, dependable sex

11、 Gao, work properly words in general use, be easy to plait distance, usage convenience etc. advantage etc. The silver City the first wastewater treatment factory adopted a SBR craft and take PLC as the control system of core, day after handling the sewage 10 104 t the processing of reach mark sewage

12、 can used for an agriculture irrigation.1 Control system structureControl the way of concentration monitor management, scatter a control of the system adoption. The emulation hold, place of honor machine, gather a line machine, printer to Be located on medium control room, two set PLCs are located o

13、n control the spot. Adopt this kind of structure can make the information in the production line can centralized management with carry out whole operation, management with excellent turn. Also make to control dangerous dispersion in the meantime, raise the system credibility.1.1 The upper computersM

14、edium control two calculator adoption PII class works of room to control machine, circulate the operate system of Windows NT. The place of honor machine be responsible for on the scene establish each long range control(full-automatic control, automatic control, order to move a control) with surveill

15、ance, make use of Intouch7. 0 engineering software packages provide a good person machine dialogue boundary but obtain concerning parameter and equipments appearance information from the PLC by searching a way, keep a view manifestation to come out on the CRT by good sketch type, print a necessary d

16、ata in the meantime and be provided for lord to control and manager instruction produce. Supervise and control boundary but include the system total diagram, system cent diagram, imitate the quantity general chart, parameter a constitution, report to the police a window, history trend and register a window etc. boundary but. In the system total diagram, circulate the personnel can keep watch on signals, such as all movement ap