1、videoconference, Secretary of the provincial Committee of Xia Baolong stressed: this year is the “five water treatment“ “357“ timetables “for three years to resolve outstanding issues, obviously worked,“ victory of the year. The Countys departments at all levels must firmly establish the “guanghui i
2、s gold and silver“ green development concept, convinced that Castle is not relaxed, always maintaining strategic ability and strong determination to improve the environment, consistently playing well “five water treatment of“ winning the war, ever-higher levels of comprehensive well-off society was
3、built. (A) lay the sewage uphill battle. This year we will “river water quality improved at the county level, up to five“ this basic objective grasp of pollution control that focus, with the focus on three things: a good job, “clear rivers“ reaching the County created. Organization “look back“ speci
4、al inspection, the County garbage River, black and odorous River is “Dragnet“ investigation, timely rectification of problems found in place firmly to prevent river pollution rebound. In accordance with the “one-stop strategy“, improving the inferior five water quality monitoring stations work this
5、year to ensure the Elimination of 1 provincial control, five water quality section 3 municipalities controlled deterioration, ensure the creation this year of “clear rivers“ standards. Second, pay special attention to pollution-cutting construction of nanotubes. Intercepting nanotubes are the basis
6、of pollution of water source engineering, engineering, matter of success or failure of water management. Urban sewage treatment, to improve “effluent from sewage treatment rate, running accuracy, compliance“ requirement, speed up the towns support network construction, is focusing on nanotubes home
7、“last meters“ question. Domestic sewage treatment in rural areas, this year is the final year of the three-year action, determination to fight and the momentum around, ending the battle on which fully to ensure the realization of all County 648 formed village coverage. Also, be sure to attach import
8、ance to focus on rural domestic wastewater treatment facility operation and management, ensure that wastewater treatment facility up and running, role play, avoid the “Sun“ problem. Third, pay special attention to the River Lake pond desilting operation. Provinces now have focused on pollution contr
9、ol of water go to “dig up mud“, as the deepening water of this years “plays“. Next, to jump-start an investigation line touches work, implementation plan according to the priorities and the programme of work, in accordance with the “one river one policy“ requires detailed cleaning, dredging plan, pl
10、anning ahead of time cleaning out mud “way out“, according to local conditions to do sludge, promote scientific resource utilization of silt and mud. (B) the heavy regulation of heavily polluting industries. Pollution of water must grab the source, wastewater is primarily the source of backward prod
11、uction capacity, increase the intensity oftreatment of heavily polluting industries. According to municipal, and municipal government deployment of seven big heavy pollution industry regulation “three years action plans“, requirements to December 2016 end of Qian, all included shut stopped eliminate
12、d of enterprise all shut stopped eliminated in place; June 30, 2017 Qian, all included place regulation upgrade and agglomeration restructuring of enterprise by unified standard regulation in place, late not standard of enterprise are implementation discontinued; June 30, 2018 Qian, all intends Park
13、 production of enterprise relocation Park in place, late not Park of are discontinued. In the process of renovation, will focus on four aspects: to firmly close the high energy consumption and heavy pollution, hopeless enterprise governance and production lines, eliminated a number of yearly emissio
14、n intensity, low value-added products of backward production capacity. Second, we must strictly enforce the space, total project “Trinity“ environment access system, promoting industry access and environmental conditions of access of enterprises to the Park, industrial park, in principle, no longer
15、the class on the new project. Thirdly, promoting replacement and reconstruction of heavily polluting industries, mergers and reorganizations, guide enterprises to energy conservation, recycling and low-carbon and clean production, and improve the level of green development. Four to establish a long-
16、term supervision mechanism, increase the intensity of special inspections, investigate and punish the rectification is not in place, normal business of running anti-pollution installations do not. (Iii) linkage to promote flood control water, drainage, water supply, improving water saving. Speed up
17、cross Yang support river dike reinforcement, and along Pu seawall except insurance reinforcement, and Lake Qian sluice, and BA Cao sluice, and cloud cover reservoir, focus flood control drainage engineering construction, vigorously implementation “strong library“ “solid di“ “spread row“ engineering,
18、 increased geological disaster hidden points governance efforts, solid advance small basin torrent disaster governance, efforts from essentially solution basin sex, and regional flood control drainage capacity insufficient of problem. Vigorously implement the piers, algae and other water sources pro
19、tection and, promoting rural drinking water safety projects, setting up water pricing reform and environmental protection mechanism, guiding water depth. Further soil pollution and repair, strengthen agricultural non-point source pollution prevention, mountain, water, forests, fields, lakes, various
20、 elements mutual long. Four, manage to tighten control, to play “three to split“ battle. Xia Baolong, Secretary of provincial party Committee stressed that while the “three to split“ operation time is over three years, but “three to split“ must continue to catch on, and resolve a split cannot be cha
21、nged. All localities and departments to the village and “no unauthorised“ created学 号： 课 程 设 计题 目 液体混合 PLC 控制系统设计学 院 计算机科学与信息工程学院班 级 2011 级自动化 3 班学 号 学生姓名指导教师 刘宵惠2014 年 5 月 29 日videoconference, Secretary of the provincial Committee of Xia Baolong stressed: this year is the “five water treatment“ “357
22、“ timetables “for three years to resolve outstanding issues, obviously worked,“ victory of the year. The Countys departments at all levels must firmly establish the “guanghui is gold and silver“ green development concept, convinced that Castle is not relaxed, always maintaining strategic ability and
23、 strong determination to improve the environment, consistently playing well “five water treatment of“ winning the war, ever-higher levels of comprehensive well-off society was built. (A) lay the sewage uphill battle. This year we will “river water quality improved at the county level, up to five“ th
24、is basic objective grasp of pollution control that focus, with the focus on three things: a good job, “clear rivers“ reaching the County created. Organization “look back“ special inspection, the County garbage River, black and odorous River is “Dragnet“ investigation, timely rectification of problem
25、s found in place firmly to prevent river pollution rebound. In accordance with the “one-stop strategy“, improving the inferior five water quality monitoring stations work this year to ensure the Elimination of 1 provincial control, five water quality section 3 municipalities controlled deterioration
26、, ensure the creation this year of “clear rivers“ standards. Second, pay special attention to pollution-cutting construction of nanotubes. Intercepting nanotubes are the basis of pollution of water source engineering, engineering, matter of success or failure of water management. Urban sewage treatm
27、ent, to improve “effluent from sewage treatment rate, running accuracy, compliance“ requirement, speed up the towns support network construction, is focusing on nanotubes home “last meters“ question. Domestic sewage treatment in rural areas, this year is the final year of the three-year action, dete
28、rmination to fight and the momentum around, ending the battle on which fully to ensure the realization of all County 648 formed village coverage. Also, be sure to attach importance to focus on rural domestic wastewater treatment facility operation and management, ensure that wastewater treatment fac
29、ility up and running, role play, avoid the “Sun“ problem. Third, pay special attention to the River Lake pond desilting operation. Provinces now have focused on pollution control of water go to “dig up mud“, as the deepening water of this years “plays“. Next, to jump-start an investigation line touc
30、hes work, implementation plan according to the priorities and the programme of work, in accordance with the “one river one policy“ requires detailed cleaning, dredging plan, planning ahead of time cleaning out mud “way out“, according to local conditions to do sludge, promote scientific resource uti
31、lization of silt and mud. (B) the heavy regulation of heavily polluting industries. Pollution of water must grab the source, wastewater is primarily the source of backward production capacity, increase the intensity oftreatment of heavily polluting industries. According to municipal, and municipal g
32、overnment deployment of seven big heavy pollution industry regulation “three years action plans“, requirements to December 2016 end of Qian, all included shut stopped eliminated of enterprise all shut stopped eliminated in place; June 30, 2017 Qian, all included place regulation upgrade and agglomer
33、ation restructuring of enterprise by unified standard regulation in place, late not standard of enterprise are implementation discontinued; June 30, 2018 Qian, all intends Park production of enterprise relocation Park in place, late not Park of are discontinued. In the process of renovation, will fo
34、cus on four aspects: to firmly close the high energy consumption and heavy pollution, hopeless enterprise governance and production lines, eliminated a number of yearly emission intensity, low value-added products of backward production capacity. Second, we must strictly enforce the space, total pro
35、ject “Trinity“ environment access system, promoting industry access and environmental conditions of access of enterprises to the Park, industrial park, in principle, no longer the class on the new project. Thirdly, promoting replacement and reconstruction of heavily polluting industries, mergers and
36、 reorganizations, guide enterprises to energy conservation, recycling and low-carbon and clean production, and improve the level of green development. Four to establish a long-term supervision mechanism, increase the intensity of special inspections, investigate and punish the rectification is not i
37、n place, normal business of running anti-pollution installations do not. (Iii) linkage to promote flood control water, drainage, water supply, improving water saving. Speed up cross Yang support river dike reinforcement, and along Pu seawall except insurance reinforcement, and Lake Qian sluice, and
38、BA Cao sluice, and cloud cover reservoir, focus flood control drainage engineering construction, vigorously implementation “strong library“ “solid di“ “spread row“ engineering, increased geological disaster hidden points governance efforts, solid advance small basin torrent disaster governance, effo
39、rts from essentially solution basin sex, and regional flood control drainage capacity insufficient of problem. Vigorously implement the piers, algae and other water sources protection and, promoting rural drinking water safety projects, setting up water pricing reform and environmental protection me
40、chanism, guiding water depth. Further soil pollution and repair, strengthen agricultural non-point source pollution prevention, mountain, water, forests, fields, lakes, various elements mutual long. Four, manage to tighten control, to play “three to split“ battle. Xia Baolong, Secretary of provincia
41、l party Committee stressed that while the “three to split“ operation time is over three years, but “three to split“ must continue to catch on, and resolve a split cannot be changed. All localities and departments to the village and “no unauthorised“ created液体混合 PLC 控制系统设计2011 级自动化三班 摘要在上世纪 60 年代末 PL
42、C 的出现，便以其独特的优点得到迅速地发展和普及，并在冶金、机械、纺织、轻工、化工等众多行业中取代了传统的继电器控制。掌握可编程序控制器的工作原理，具备设计、调试和维护可编程序控制器控制系统的能力，已经成为现代工业对电气技术人员和相关工科学生的基本要求。将 PLC 用于多种液体混合控制系统，对于学习和在工业上的应用，尤其是在化工工业上的应用显得非常的重要。设计以三种液体混合控制系统为例，根据设计要求对其硬件系统组成、软件系统设计和整个系统的整合调试等有关设计及制作过程做简单的介绍和说明，以阐述 PLC 在多种液体混合控制系统中应用。同时，设计采用欧姆龙公司的 CPM1A 系列机型进行了控制系统
43、的 PLC 程序设计。关键词：多种液体，混合装置，自动控制一、设计目的通过四种液体混合 PLC 控制系统设计，使学生进一步熟悉有关 PLC 电气控制的理论知识，PLC 的结构、组成、工作原理，掌握根据控制要求用 PLC 进行控制系统设计及控制程序设计方法和步骤，培养同学们的工程意识的工程实践能力。二、方案设计1.方案设计内容及要求（1）按下启动按钮，电磁阀 YV1 和 YV2 同时为 ON，液体 A 和液体 B 同时注入罐中。当液面高度达到 H3 时，液体检测传感器 H3 为 ON，电磁阀 YV1 和 YV2 同时为 OFF，液体A 和液体 B 同时停止注入。（2）磁阀 YV3 和 YV4 同
44、时为 ON，液体 C 和液体 D 同时注入罐中。当液面高度达到 H4时，液体检测传感器 H4 为 ON，电磁阀 YV3 和 YV4 同时为 OFF，液体 C 和液体 D 同时停止注入。（3）启动搅拌机 M，搅拌液体 5s 后 M 停止，同时加热器 RY 通电、温控仪 TE 通电，N，开始加热液体并进行温度检测，经 30s 加热器 RY 和温控仪 TE 断电；或加热到 60C时，温控仪输出控制信号使 PLC 自动切断加热器电源，发出超温报警信号。此时需由人工停止报警并转入下一工序。（4）磁阀 YV5 打开，放出加热后的混合液体，H4 先为 OFF，再 H3 为 OFF；经 6s 后罐中液体放空，
45、电磁阀 YV5 为 OFF，TE 为 OFF。（5）当磁阀 YV5 为 OFF 时，电磁阀 YV1 和 YV2 同时为 ON，液体 A 和液体 B 同时注入罐中，循环上述 14 的控制过程，用计数器记录循环 2 次后，停止循环控制。（6）按下停止按钮，系统停止工作。（7）应设计出硬件系统接线图。videoconference, Secretary of the provincial Committee of Xia Baolong stressed: this year is the “five water treatment“ “357“ timetables “for three year
46、s to resolve outstanding issues, obviously worked,“ victory of the year. The Countys departments at all levels must firmly establish the “guanghui is gold and silver“ green development concept, convinced that Castle is not relaxed, always maintaining strategic ability and strong determination to imp
47、rove the environment, consistently playing well “five water treatment of“ winning the war, ever-higher levels of comprehensive well-off society was built. (A) lay the sewage uphill battle. This year we will “river water quality improved at the county level, up to five“ this basic objective grasp of
48、pollution control that focus, with the focus on three things: a good job, “clear rivers“ reaching the County created. Organization “look back“ special inspection, the County garbage River, black and odorous River is “Dragnet“ investigation, timely rectification of problems found in place firmly to p
49、revent river pollution rebound. In accordance with the “one-stop strategy“, improving the inferior five water quality monitoring stations work this year to ensure the Elimination of 1 provincial control, five water quality section 3 municipalities controlled deterioration, ensure the creation this year of “clear rivers“ standards. Second, pay special attention to pollution-cutting construction of nanotubes. Intercepting nanotubes are the basis of pollution of water source engineering, engineering, matter of success or failu
