文档介绍：摘要
冷轧煤气混合加压系统是钢铁生产的重要环节,混合煤气的质量直接影响钢铁生产的质量和产量。煤气混合加压过程复杂,影响因素多,本次设计系统就是为了使加压站能稳定的进行工作。
本系统包含了四个调节回路,分别是热值调节回路、混压调节回路、加压机后压力(变频)调节回路、加压机后压力(泄放)调节回路。四个调节回路主要是使冷轧煤气混合加压站中高炉煤气与焦炉煤气通过热值调节回路控制使之比为4:1,混合气体的调节阀调节电路主要由PI调节电路进行调节,同时有手动和自动调节阀保证了调节的精确度及稳定性。变频器的调节保证了加压机的转速在一个稳定的的范围,使加压机的压力稳定。
通过设计用回路调节变频器,保证了加压站的稳定。用安全栅等安全措施保证了操作人员的安全。
关键字:冷轧煤气,加压站,PI调节,变频器,安全栅
Abstract
Cold-rolled steel gas mixed pressurized system is an important part of the production, mixed gas directly affects the quality of steel production quality and yield. Mixed gas pressure to plexity, many factors, this design system is to make the pressure points to steady work.
The system consists of four control loop, namely heating value adjustment circuit, mixed voltage regulation loop, pressurized machine pressure (frequency) control loop, pressurized machine pressure (discharge) control loop. Four main control loop is to make the cold gas mixed with blast furnace pressor stations in the calorific value of coke oven gas through the loop control to adjust the ratio of 4:1, mixed gas regulator valve to adjust the circuit mainly by the PI regulator circuit to adjust, both manual and automatic regulating valve to ensure the accuracy and stability. Frequency regulation to ensure pression machine at a steady speed range, steady pressure to pressure machine.
Regulation designed to loop through the inverter to ensure the stability of pressure points. With barriers and other security measures to ensure the safety of the operator.
Keywords: Cold gas, Compressor stations, PI regulator, Inverter, Safety barrier
目录
第1章绪论 1
1
1
、特性及研究现状 2
第2章方案论证 4
4
4
5
(变频)调节 5
(泄放)调节 6
7
7
7
7
8
8
12
13
第3章硬件电路设计 15
PLC选型 15
I/O口的分配 15
CPU及扩展模块的选择 16
17