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基于plc的污水处理控制系统的设计与研究流程图与硬件原理图

附录 1
曝气池控制梯形图[26][27]:

曝气池控制语句表: 曝气池控制语句表: TITLE=PROGRAM COMMENTS Network 1 // 并联输入 // Network Comment LD O A AN AN = LD AR> AR>= = LD A O AN = AN = LD A AR> AR>= = LD A O I0.3 M1.5 M0.2 M3.4 M0.0 M1.5 M0.3 VD20, VD100 VD30, VD102 M3.4 M0.3 M3.4 M1.3 M0.0 M1.3 M3.5 M1.6 M0.3 M1.3 VD20, VD100 VD30, VD102 M3.5 M0.3 M3.5 M1.4

Network 2

Network 3

Network 4

Network 5

AN AN = LD A AR< = LD O AN AN = LD A AR< = LD A O AN AN = Network 6

M0.0 M3.6 M1.4 M0.3 M1.4 VD20, VD100 M3.6 M3.6 M1.6 M0.0 M3.7 M1.6 M0.3 M1.6 VD20, VD100 M3.7 M0.3 M3.7 M1.5 M3.4 M0.0 M1.5

Network 7

Network 8

Network 9

污泥泵房控制梯形图[9]:

污泥泵房控制语句表 :

TITLE=PROGRAM COMMENTS Network 1 // Network Title // Network Comment LD AN TON M0.3 M3.6 T44, 20

Network 2 LD A = M0.3 T44 M4.0

Network 3 LD AN A M0.3 M3.5 I3.6

TON

T45, 20

Network 4 LD A A = M0.3 T45 M4.1 M2.1

Network 5 LD A TON M0.3 I3.5 T46, 20

Network 6 LD A = M0.3 T46 M4.1

附录 2
主电路图 :

控制电路图

自动 手 动 KM2 KA0 KM2 KA1 KM1 KA2 KA3 KA4 KA5 KA6 KA7 KA8 KA9 KA10 KA11 KM24 KA12

N

KM15 KM16 KM17 KM18 KM19 KM20 KM21 KM22 KM23

KM12

KM1

KM2

KM3

KM4

KM5

KM6

KM7

KM8

KM9

KM00

KM01

KM03

KM0

FR

FR

FR

FR

FR

FR

FR

FR

FR

FR

FR

FR

FR

FR

SB3
K M 1 3

SB4

SB5

SB6
K

SB7

SB8
K

SB9
K

SB10
K

SB11

SB12

SB13
K

SB14

S B 2 0

K M 1 4

S B 2 1

K M 1 5

S M B 1 2 6 2 KA2

S B 2 3 KA3

S M B 1 2 8 4 KA4
KM17

S M B 1 2 9 5 KA5

S M B 2 2 0 6 KA6

S B 2 7 KA7

S B 2 8 KA8
KM21

S M B 2 3 2 9 KA9
KM22

S B 3 0 KA10

S B 3 1 KA11
KM24

KM13

KM14

KM15

KM16

KM18

KM19

KM20

KM23

FR

FR

FR

FR

FR

FR

FR

FR

FR

FR

FR

FR

显示电路

CPU 控制图
24V IL SB1 启动 停止 SB2 Q0.1 KA2 Q0.2 KA3 Q0.3 KA4 Q0.4 KA5 Q0.5 KA6 Q0.6 KA7 Q0.7 螺杆泵 药剂泵 污泥泵 调节剂泵2 气提除沙泵 调节剂泵1 Q0.0 KA1 鼓风机2 KA0 鼓风机1 24V

24V 2L KA8 Q1.0 滞水器 KA9 Q1.1 KA10 Q1.2 KA11 Q1.3 KA22 L1 220V N AC L M RA A+ A24V 液位传感 器 24V RC 悬浮固体 传感器 24V COD 测量 仪 24V C+ CRD D+ DRB B+ BQ1.4 KA12 变频器运行 污水提升泵2 污水提升泵1 循环泵

CPU226

M L+ K A 2 2 KA22 KA12

PH传感器

24V

EM235
IO MO
KA22

DIN1 AIN1+ MM440 AIN1- 变频器

A

B

显示 仪表

4-20mA