Tsim Kev Tswj Hluav Taws Xob rau MBBR Integrated Wastewater Treatment Units

Ib qho modular, ntse mus kom ze rau txhim khu kev qha automation rau decentralized MBBR nroj tsuag|Lub Rau Hli 2026

Rau MBBR-raws li kev kho cov dej khib nyiab kom muaj kev ntseeg siab hauv cov ntawv thov kev lag luam - cov zos nyob deb nroog, cov chaw pabcuam kev loj, cov zej zog me - cov kev tswj hluav taws xob yuav tsum ua ntau dua li hloov cov twj tso kua mis rau thiab tawm. Nws yuav tsum tiv thaiv cov cuab yeej siv, hloov pauv cov khoom thauj, txo cov neeg ua haujlwm cuam tshuam, thiab sib txuas lus ua ntej lawv ua tsis tiav. Kev nkag siab txog cov qauv tsim no yuav pab txo qis lub sijhawm poob qis, txuas ntxiv lub neej ntawm cov cuab yeej siv, thiab ua tau raws li cov qauv nruj nruj.

Kab lus no tham txog kev tsim qauv siv hluav taws xob rau MBBR cov khoom siv sib xyaw ua ke, suav nrog kev xaiv kho vajtse, tsim hluav taws xob, tswj kev ua haujlwm logic (PLC), thiab cov kev daws teeb meem hauv thaj chaw deb. Txawm hais tias koj yog cov chaw tsim khoom, tus neeg koom ua ke, lossis cov neeg ua haujlwm cog, cov ntsiab cai no ncaj qha txhais cov nqi ua haujlwm qis dua thiab ua raws li kev ntseeg siab dua.

Yog vim li cas Tswj System Design Matters

Kev kho cov dej khib nyiab nyob deb nroog thiab kev faib tawm tau ntsib cov teeb meem tshwj xeeb: txwv rau - cov neeg ua haujlwm hauv chaw ua haujlwm, kev sib txawv ntawm kev khiav thiab thauj khoom, thiab xav tau kev ua haujlwm siab nrog kev saib xyuas tsawg. Cov txheej txheem tswj cov pa uas tso siab rau kev ua haujlwm ntawm phau ntawv lossis lub sijhawm ua haujlwm yooj yim-raws li kev xav tsis tuaj yeem ua tau raws li cov kev kho mob niaj hnub no, tshwj xeeb tshaj yog thaum cov qauv kev tshem tawm nitrogen thiab phosphorus xav tau kev tswj xyuas meej ntawm aeration, recirculation, thiab tshuaj siv tshuaj.

Qhov zoo-tsim hluav taws xob tswj qhov system nrog PLC logic muab:

Tsis siv neeg yoog rawsrau influent fluctuations yam tsis muaj kev cuam tshuam tib neeg

Zog efficiencylos ntawm optimized aeration thiab twj tso kua mis teem sij hawm

Cov cuab yeej tiv thaivntawm overload, theem- poob, thiab qhuav- khiav kom paub

Kev kuaj mob yuam kevthiab tej thaj chaw deb tswb ceeb toom kom teb ceev ceev

Kev qhia ua raws cailos ntawm automated data logging

Daim duab 1: Tswj vaj huam sib luag rau Integrated MBBR Equipment

1. System Architecture Overview

Tus tswj system architecture tau muab faib ua peb txheej:

Teb Txheej:Sensors (DO, pH, flowmeter, theem hloov, ntsuas kub) thiab actuators (blowers, twj tso kua mis, li qub, tshuaj dosing twj).

Tswj Txheej:PLC (Programmable Logic Controller) nrog analog thiab digital I / O modules, ua tiav kev tswj cov logic thiab ua cov cim ua haujlwm.

Supervision Txheej:HMI (Tib neeg-Machine Interface) kov npo rau kev saib xyuas hauv zos thiab kev ua haujlwm, ntxiv rau cov chaw taws teeb tswj SCADA lossis huab -raws li kev soj ntsuam ntawm 4G/5G router.

Rau cov nroj tsuag me me MBBR (50-500 m³/d), lub compact PLC nrog kev sib xyaw HMI tau pom zoo. Rau cov nroj tsuag loj dua lossis ntau- kev teeb tsa chav tsev, ib qho qauv PLC nrog kev faib I/O muab kev ua kom zoo dua.

Daim duab 2: System Architecture Diagram

2. Phau ntawv qhia txog kev xaiv kho vajtse

2.1 Main Power Distribution

Cov khoom siv hluav taws xob tuaj yuav tsum tau tiv thaiv los ntawm lub ntsiab hluav taws xob hluav taws xob nrog lub peev xwm cuam tshuam tsim nyog. Cov cai tsim qauv tseem ceeb:

Main breakerntsuas ntawm 125% ntawm tag nrho cov puv -load tam sim no

Lub cev muaj zog ceg circuitstiv thaiv los ntawm lub cev muaj zog Circuit Court breakers (MCBs) nrog thermal thiab sib nqus mus ncig

Tswj fais fab(24V DC) muab los ntawm DIN -rail hloov fais fab mov, qhov loj ntawm 150% ntawm tag nrho cov tswj load

Emergency nres (E-Stop)circuit wired raws li kev ruaj ntseg relay nrog phau ntawv rov pib dua, tsis yog software- nyob ntawm

Surge tiv thaiv ntaus ntawv (SPD)ntawm lub ntsiab lus tseem ceeb tshaj plaws rau xob laim - thaj chaw muaj kev cuam tshuam

2.2 Cov Txheej Txheem Xaiv PLC

PLC yuav tsum raug xaiv raws li I/O suav, kev sib txuas lus, thiab ib puag ncig:

Daim duab 3: HMI Main Monitoring Screen Piv txwv

2.3 HMI Requirements

Lub 7-nti lossis 10-nti kov npo HMI muab cov neeg siv hauv zos interface. HMI yuav tsum tso saib:

Tiag -cov nqi txheej txheem sijhawm(DO, pH, ntws, tank qib)

Cov khoom siv raws li txoj cai(run/stop/fault) nrog xim coding: Ntsuab=Khiav, Liab=Fault, Grey=Nres

Alarm keeb kwmnrog lub sijhawm

Trend graphsrau DO thiab ntws tus nqi (yam tsawg kawg 7-hnub keeb kwm)

Phau ntawv overridemuaj peev xwm rau txhua lub cuab yeej (nrog kev tiv thaiv tus password)

Control Vaj Huam Sib Luag Internal Layout thiab Wiring

2.4 VFD (Variable Frequency Drive) rau Blowers

Blowers account rau50-70% ntawm tag nrho cov zog sivhauv MBBR cov nroj tsuag. Siv VFDs nrog PID tswj raws li DO setpoint tuaj yeemtxo aeration zog los ntawm 20-35%. Rau cov ntawv thov MBBR, VFD xaiv cov qauv suav nrog:

Rated rau cov dej num tas mus linrog 10% overload margin

Ua -hauv PID maub losnrog DO tawm tswv yim (4-20 mA)

Tsis siv neeg rov pib duatom qab fais fab tuag (fly start function)

Modbus RTU kev sib txuas lusrau PLC kev koom ua ke

EMC lim ua tau -intiv thaiv kev cuam tshuam nrog sensors

3. Tswj Logic Tsim

3.1 Main Control Sequence

Txoj haujlwm tswj hwm yuav tsum ua raws li lub xeev - tshuab qauv nrog cov qauv ua haujlwm no:

Pib-Up Mode:Cov khoom siv maj mam sib txuas ua ke - cov khoom sib tov ua ntej, tom qab ntawd lub twj tso kua mis muaj zog, tom qab ntawd blowers ntawm qhov tsawg kawg nkaus ceev. Tiv thaiv hydraulic poob siab thiab tso cai rau biofilm acclimation.

Hom kev ua haujlwm li qub:PID-raws li aeration tswj, lub sij hawm sludge xa ​​rov qab, thiab qib-raws li cov twj tso kua mis. DO setpoint feem ntau yog 2.0-3.0 mg/L rau nitrification-dominant MBBR systems.

Tsawg-Flow Mode (Hmo / Off-Peak):Yog tias cov dej ntws ntws qis qis dua 30% ntawm kev tsim, lub kaw lus nkag mus rau qhov sib txawv aeration hom (piv txwv li, 30 min ON, 15 min OFF) kom txuag hluav taws xob thaum tswj xyuas biofilm viability.

Cua daj/siab-Flow Mode:Thaum muaj zog txaus siab tshaj 120% ntawm kev tsim, tag nrho cov khoom siv khiav ntawm lub peev xwm siab tshaj plaws thiab cov dej ntws ntau dhau mus rau qhov sib npaug ntawm lub tank lossis bypass.

Hom Kev Kho Mob:Tag nrho cov khoom siv xauv tawm ntawm qhov hloov pauv; HMI qhia cov npe kev saib xyuas.

3.2 PID Aeration Control

Qhov tseem ceeb tshaj plaws tswj lub voj nyob rau hauv ib tsob nroj MBBR yog DO-raws li aeration tswj. PID algorithm siv DO sensor nyeem ntawv (txhim kho qhov sib txawv, PV), piv rau qhov teeb tsa (SP, feem ntau yog 2.5 mg / L), thiab kho VFD tso zis zaus (tswj kuj sib txawv, CV) kom txo tau qhov yuam kev.

PID tuning yuav tsum ua raws li txoj hauv kev no:

Pib nrog P- nkaus xwb(Kp=0.5-1.0), saib lub sijhawm oscillation

Ntxiv Integral(Ti=30-60 vib nas this) kom tshem tawm tsis tu ncua - lub xeev yuam kev

Khaws Derivative (Td) me me los yog xoomrau kev siv dej khib nyiab (cov suab nrov DO tuaj yeem ua rau muaj kev ncaws pob)

Anti -windup:Txwv kev sib xyaw ua ke thaum VFD nce mus txog min / max zaus

PID cov zis yuav tsum tau hloov kho txhua txhua1-2 vib nas this. Kev hloov pauv ceev ceev tuaj yeem ua rau tua tsiaj; qeeb qeeb ua rau sluggish teb.

3.3 Tswb thiab Fault Handling

Alarms tau muab faib ua peb theem hnyav:

Txhua lub tswb yuav tsum yoglatched(tseem nyob twj ywm kom txog thaum tus kheej lees paub) thiab teem sijhawm nrog 1-thib ob daws teeb meem.

3.4 Tsis Siv Neeg Sludge Management

Sludge nkim yog tswj los ntawm timer nrog adjustable ON lub sij hawm thiab ncua sij hawm raws li SRT xam:

Cov neeg ua haujlwm teeb tsaLub hom phiaj SRT (hnub) thiab MLSS concentration ntawm HMI

PLC suavCov khoom pov tseg txhua hnub: V_waste=V_tank x MLSS / (SRT x RAS_SS)

Sludge twj tso kua mis khiavnyob rau lub sij hawm luv luv kom kwv yees qhov ntim tau suav

Qhov no semi-automated mus kom ze txuas qhov sib txawv ntawm cov ntawv qhia tag nrho thiab kev tswj cov sludge tag nrho.

Daim duab 4: Tswj Logic Flowchart rau MBBR Kev Ua Haujlwm

PLC Programming Interface thiab HMI Configuration

4. Kev saib xyuas chaw taws teeb thiab IoT kev koom ua ke

Rau cov nroj tsuag decentralized uas cov neeg ua haujlwm niaj hnub tuaj ntsib tsis ua haujlwm, kev saib xyuas cov chaw taws teeb yog qhov tseem ceeb. A4G / 5G muaj routertxuas nrog PLC's Ethernet chaw nres nkoj enables:

Tiag - lub sijhawm dashboardsiv tau los ntawm web browser lossis mobile app

SMS / WeChat ceeb toom ceeb toomrau Theem 2 thiab Theem 3 tswb

Cov ntaub ntawv keeb kwm trending(DO, ntws, dej tsis zoo) khaws cia hauv huab database

Tej thaj chaw deb PLC qhov kev pab cuam upload/downloadrau kev daws teeb meem thiab hloov tshiab

Cybersecurity suav nrog:VPN qhov(tsis yog chaw nres nkoj xa mus), firewall enabled, default passwords hloov, firmware khaws cia tshiab, thiab nkag mus nkag tau qhib.

Chaw Taws Teeb Saib Xyuas Dashboard thiab 4G / 5G IoT Gateway Teeb

5. Kev teeb tsa thiab commissioning daim ntawv txheeb xyuas

Ua ntej- zog:Txheeb xyuas tag nrho cov xaim hluav taws xob tiv thaiv hluav taws xob, tshawb xyuas kev tiv thaiv hluav taws xob (tsawg kawg 1 MΩ ntawm 500V DC), paub meej tias av tiv thaiv hauv qab 4Ω.

I/O Check:quab yuam txhua qhov tso zis digital ON / OFF los ntawm PLC los txheeb xyuas cov khoom siv ua haujlwm. Simulate 4-20 mA cov cim qhia los txheeb xyuas qhov ntsuas qhov ntsuas analog.

Sensor Calibration:Calibrate DO sensor nyob rau hauv huab cua (100% saturation), xyuas pH nrog buffer daws (4.01 thiab 7.00), calibrate flow meter tiv thaiv ib tug paub ntim.

Functional Test:Khiav lub kaw lus hauv phau ntawv hom los ntawm ib lub voj voog ua tiav, tom qab ntawd hloov mus rau hom pib thiab saib PID cov lus teb rau qhov kev hloov pauv.

Cov ntaub ntawv:Sau tag nrho cov setpoints, PID parameters, thiab calibration cov ntaub ntawv nyob rau hauv daim ntawv qhia commissioning. Nqa cov duab ntawm cov hlua thiab vaj huam sib luag layout rau yav tom ntej siv.

Daim duab 5: Kev Ua Haujlwm thiab Kev Ntsuas ntawm Qhov Chaw

6. Kev tu thiab kev daws teeb meem

6.1 Lub Sijhawm Saib Xyuas Kev Tiv Thaiv

6.2 Kev Ua Phem thiab Kev Ntsuas

Ntawm -Site Control System Maintenance and Inspection

7. Cov lus xaus

Lub tshuab hluav taws xob tsim tau zoo yog qhov tseem ceeb rau kev kho mob MBBR raws li cov txheej txheem lom neeg nws tus kheej. Cov ntsiab cai tseem ceeb ntawm kev tsim muaj xws li:modular kho vajtse architecturerau scalability,PID-raws li DO tswj nrog VFDrau lub zog efficiency,ntau- theem tswj lub tswbnrog tej thaj chaw deb ceeb toom,semi-automated sludge tswj, thiabKev sib koom ua ke ntawm IoTrau kev ua haujlwm decentralized.

Rau cov tuam txhab tsim khoom thiab cov neeg koom ua ke, ua raws li cov txheej txheem tsim qauv no txo ​​qis kev ua haujlwm tsis tiav, txo tus nqi lav, thiab txhim kho qhov kawg - cov neeg siv txaus siab. Rau cov neeg ua haujlwm cog, kev nkag siab txog kev tswj hwm kev tswj hwm ua kom muaj kev daws teeb meem zoo dua, kev ua haujlwm tau zoo dua, thiab siv lub neej ntev.

Daim duab 6: Ua kom tiav Kev Kho Mob MBBR Kev Kho Hniav Nruab Nrab ntawm Qhov Chaw