Daim Ntawv Qhia Kev Xaiv Kev Ruaj Ntseg Hauv Membrane Treatment Systems (I)

Cov ntxaij lim dej kev ruaj ntseg (tseem hu ua cov ntxaij lim dej precision) yog "kab kawg ntawm kev tiv thaiv" hauv cov txheej txheem kho membrane (RO, UF, MF, thiab lwm yam). Lawv lub luag haujlwm tseem ceeb yog tshem tawm cov khib nyiab zoo, colloids, thiab cov teeb meem me me (Ntau dua lossis sib npaug li 1μm) los ntawm cov dej pub, tiv thaiv khawb thiab txhaws ntawm daim nyias nyias, txuas lub neej ntawm daim nyias nyias, thiab txo qis kev tu lub sijhawm thiab cov nqi khiav haujlwm. Lawv cov kev xaiv ncaj qha txiav txim siab txog kev ruaj ntseg thiab kev lag luam ntawm cov txheej txheem membrane; Kev xaiv tsis raug tuaj yeem ua rau daim nyias nyias fouling, kev puas tsuaj, thiab txo qis permeate tawm los. Kab lus no, los ntawm kev xav txog kev tsim vaj tsev, qhia cov ntsiab lus tseem ceeb, qhov tseem ceeb, qhov xwm txheej- cov kev hloov kho tshwj xeeb, cov ntsiab lus siv tau, thiab cov kev xav tsis zoo hauv kev xaiv cov ntxaij lim dej kev ruaj ntseg, ntsuas kev txawj ntse thiab kev ua tau zoo, thiab tsim nyog rau ntau yam kev kho mob membrane xws li hauv nroog, kev lag luam, kev cog qoob loo, thiab kev siv fais fab.

(I) Kev Pom Zoo ntawm Kev Lag Luam (Kev Lag Luam Pom Zoo, nthuav qhia qhov tseem ceeb ntawm kev xaiv)
Cov ntxaij lim dej ruaj ntseg tau teeb tsa ua ntej lub siab - lub twj tso kua mis siab (los yog lub twj tso kua mis) ntawm lub kaw lus membrane (RO/UF/MF). Lawv raug suav hais tias yog "qhov kawg-theem pretreatment," tau txais cov dej ntws tom qab quartz xuab zeb pom, qhib cov pa roj carbon lim dej, thiab coagulation sedimentation. Lawv lub luag haujlwm tseem ceeb yog:
Intercepting tshem tawm cov khib nyiab, colloids, xeb, microbial flocs, thiab lwm yam impurities nrog ib tug particle loj loj dua los yog sib npaug zos rau 1μm, tiv thaiv lawv los ntawm kev nkag mus rau hauv lub membrane cov ntsiab lus, khawb lub membrane nto, thiab clogging lub membrane pores;
Kev hloov pauv hauv cov dej muaj txiaj ntsig zoo, txo cov kev cuam tshuam ntawm cov txheej txheem membrane, txo qhov kev pheej hmoo ntawm daim nyias nyias fouling, thiab txuas ntxiv lub voj voog tu daim nyias nyias (nyob rau hauv ib txwm muaj, ncua lub voj voog tu membrane ntau dua 30%);
Tiv thaiv lub siab - lub twj tso kua mis impeller, tiv thaiv cov khoom tsis zoo los ntawm kev hnav lub impeller thiab txo cov khoom siv tsis ua haujlwm.

Lus Ceeb Toom: Cov ntxaij lim dej ruaj ntseg tsis tuaj yeem hloov kho ua ntej (quartz xuab zeb, activated carbon, thiab lwm yam). Lawv tsuas yog siv los ua "kev tiv thaiv thaub qab." Kev kho tsis tiav tuaj yeem ua rau muaj kev cuam tshuam tsis tu ncua ntawm cov txheej txheem lim kev ruaj ntseg, ua kom cov nqi tu thiab txawm tias cuam tshuam rau kev ua haujlwm ntawm daim nyias nyias.

(II) Kev Xaiv Cov Yam yuavtsum tau kawm uantej (3 Cov Txheej Txheem Kom Tsis Muaj Kev Xaiv Qhov Muag) Ua ntej xaiv lub lim, peb qhov tseem ceeb yuav tsum tau txhais kom meej. Cov no yog lub hauv paus ntawm cov txheej txheem xaiv, ncaj qha txiav txim siab lub lim cov specifications, khoom siv, thiab hom cartridge. Tsis muaj leej twg tuaj yeem raug tshem tawm:
Inlet Water Quality Parameters: Ua kom pom tseeb ntawm SS (tshem tawm cov khib nyiab) cov ntsiab lus (tsawg dua lossis sib npaug li 10mg / L, pom zoo Tsawg dua lossis sib npaug rau 5mg / L ua ntej daim nyias nyias), turbidity (tsawg dua lossis sib npaug rau 1NTU), cov khoom me me me me (tseem ceeb rau qhov kev faib ua feem ntau dua lossis sib npaug rau 1μm), thiab cov ntsiab lus chlorpide H.
Membrane System Parameters: Membrane type (RO, UF, MF), membrane element specifications, tsim permeate txaus tus nqi, kev khiav hauj lwm siab, thiab inlet flow rate fluctuation range (feem ntau xam raws li 1.2 npaug ntawm tus tsim flow rate);
Kev Ua Haujlwm: Kev ua haujlwm tsis tu ncua / tsis sib xws, kev ua haujlwm kub (ib txwm / siab kub), qhov chaw teeb tsa, kev tu lub peev xwm (txawm tias yuav hloov cov cartridge nquag), thiab ib puag ncig yuav tsum tau ua (txawm tias yuav tsum muaj kev tiv thaiv corrosion thiab leakage).

Lub hauv paus ntawm kev ruaj ntseg lim xaiv revolves nyob ib ncig ntawm peb lub ntsiab modules: "filter element, vaj tse, thiab specifications." Txhua qhov module yuav tsum tau yoog raws li cov dej muaj txiaj ntsig zoo, cov txheej txheem membrane, thiab kev ua haujlwm. Cov hauv qab no yog cov kev xaiv tshwj xeeb, ua raws li cov qauv kev lag luam engineering.

(I) Filter Element Selection (Cov tub ntxhais ntawm cov tub ntxhais, ncaj qha txiav txim siab pom cov txiaj ntsig zoo) Cov ntsiab lus lim yog cov ntsiab lus tseem ceeb ntawm kev ruaj ntseg lim. Kev xaiv yuav tsum tsom rau "kev pom tseeb, cov khoom siv, thiab cov qauv." Peb yam no yuav tsum ua haujlwm sib haum xeeb; nrhiav kev raug siab ib leeg tsis pom zoo.

1. Kev xaiv qhov tseeb (Adapting mus rau lub membrane system, zam dhau - pom los yog nyob rau hauv -filtration) Lub hauv paus ntawm kev xaiv pom qhov tseeb yog "raws li qhov pore loj ntawm daim nyias nyias," raws li lub hauv paus ntsiab lus ntawm "filtration precision tsawg dua los yog sib npaug ntawm 1/5 mus rau 1/10 ntawm qhov loj." Yog hais tias tus influent muaj ib tug siab suspended solids (SS) cov ntsiab lus (5 ~ 10mg / L) los yog ib tug loj npaum li cas ntawm tej yam teeb meem, ib tug 10μm pre{11}} lim tuaj yeem muab ntxiv ua ntej lim kev ruaj ntseg (ob-stage filtration) kom ntev lub neej ntawm cov tub ntxhais lim. Yog tias cov dej muaj txiaj ntsig zoo (SS Tsawg dua lossis sib npaug li 1mg / L), 5μm lim tuaj yeem siv ua ntej RO daim nyias nyias los txo qhov zaus ntawm cov lim hloov.

2. Filter Cartridge Cov Khoom Xaiv (Txhim rau Corrosive Dej Zoo, Tiv Thaiv Lim Cartridge puas thiab Leaching)
Cov khoom siv lim cartridge yuav tsum raug xaiv raws li qhov tsis muaj xws li muaj zog pH, cov ntsiab lus chloride ion, thiab kub. Cov ntsiab lus tseem ceeb yog "corrosion resistance, tsis muaj leaching, thiab ruaj khov filtration efficiency." Cov ntaub ntawv tseem ceeb hauv kev lag luam thiab lawv cov kev thov tsim nyog yog raws li hauv qab no:

• PP Meltblown Filter Cartridge (Lub Hom Phiaj Zoo Tshaj Plaws):
- Khoom siv: Polypropylene (PP), tshuaj lom neeg ruaj khov, acid-resistant (pH 1 ~ 14), alkali -resistant, tsis muaj ntxhiab, thiab tsis yog -leaching;
- Daim ntawv thov tsim nyog: Cov dej khib nyiab hauv nroog rov siv dua, sib sib zog nqus ntawm cov dej khib nyiab pov tseg, kev kho cov dej khib nyiab ntau los ntawm cov chaw tsim hluav taws xob desulfurization, dej haus pretreatment, thiab lwm yam dej zoo (chloride ion cov ntsiab lus tsawg dua lossis sib npaug li 2000mg / L);
- Qhov zoo: Cov nqi qis, hloov tau yooj yim, tsis pom kev zoo, tuaj yeem cuam tshuam cov colloids thiab tshem tawm cov khib nyiab, haum rau feem ntau cov txheej txheem kho membrane;
- Contraindications: Not suitable for high-temperature (>60℃) los yog siab -concentration organic solvent scenarios.

• Pleated Filter Cartridge (Nyob rau siab -Cov ntawv thov Precision): - Cov ntaub ntawv: PP, PTFE (Polytetrafluoroethylene), Nylon; pom precision mus txog 0.1 ~ 5μm; loj filtration cheeb tsam; - Haum rau: RO membrane ua ntej- pom, kev kho dej haus membrane, ultrapure dej pretreatment hauv kev lag luam hluav taws xob (yuav tsum tsis muaj impurity leaching); - Qhov zoo: Kev ua haujlwm siab pom, cov av loj- tuav lub peev xwm, thiab kev pabcuam lub neej 30% ~ 50% ntev dua li cov lim dej meltblown; - Contraindications: PTFE cov khoom yog kim heev; cov khoom nylon tsis yog acid{11}}resistant (pH <4).

• Stainless Steel Filter Cartridge (Backwashable Scenario): - Khoom siv: 304 lossis 316L stainless hlau, kub resistant (tsawg dua los yog sib npaug rau 120 degree), corrosion resistant (chloride ion cov ntsiab lus tsawg dua los yog sib npaug rau 5000mg / L), backwashable thiab reusable; - Tsim nyog Scenarios: Membrane kho cov dej khib nyiab uas muaj siab turbidity thiab siab cov ntsiab lus (xws li mining khib nyiab, thee ntxuav dej khib nyiab), siab - kub tej yam kev mob (xws li fais fab nroj tsuag boiler feedwater); - Qhov zoo: Backwashable, txo cov lim cartridge hloov zaus thiab txo nqi txij nkawm; - Contraindications: Qhov siab tshaj plaws pom qhov tseeb tsuas yog 1μm, uas tsis tuaj yeem ua tau raws li qhov siab - qhov kev tiv thaiv qhov tseeb ntawm RO membranes. Nws yuav tsum tau siv ua ke nrog PP pleated lim cartridge.

3. Filter Cartridge Structure thiab Specification Selection (Matching the Filter Housing to ensure Uniform Flow)
Cov qauv lim cartridge thiab cov lus qhia tshwj xeeb yuav tsum phim lub lim tsev. Cov ntsiab lus tseem ceeb yog "ntev, txoj kab uas hla, thiab hom interface." Cov ntsiab lus tseem ceeb hauv kev lag luam yog raws li hauv qab no:

• Ntev: Feem ntau siv yog 10 ntiv tes, 20 ntiv tes, 30 ntiv tes, thiab 40 ntiv tes. 20 ntiv tes yog qhov nyiam (tsim rau feem ntau me me thiab nruab nrab- qhov loj me ntawm daim nyias nyias); rau siab -flow scenarios (dej ntau lawm> 50 m³ / h), 40 nti yog siv los txo tus naj npawb ntawm lim cartridges; rau qhov tsawg-flow scenarios (dej ntau lawm <10 m³ / h), 10 ntiv tes yog siv los txuag qhov chaw teeb tsa.

• Txoj kab uas hla: Feem ntau siv yog φ65mm (txheej txheem lim cartridge), sib haum nrog cov pa lim kev ruaj ntseg vaj tse, yuav tsum tsis muaj kev hloov kho ntxiv thiab txo nqi.

• Hom Interface: Feem ntau siv yog tiaj- hom kev siab thiab kev ntxig. Pav ca- hom siab yog haum rau feem ntau cov xwm txheej thiab yooj yim rau nruab thiab disassemble; Cov hom kev ntxig ntxig muab kev sib khi zoo dua thiab tsim nyog rau siab - cov haujlwm siab (kev ua haujlwm siab> 1.0 MPa).

(II) Plhaub xaiv (Txhim kho rau kev ua haujlwm, ua kom ruaj khov thiab muaj kev nyab xeeb)
Cov khoom siv plhaub, kev ntsuas siab, thiab cov qauv tsim ncaj qha cuam tshuam rau kev ua haujlwm ntawm lub neej thiab kev ua haujlwm ntawm cov lim kev ruaj ntseg. Kev xaiv yuav tsum xav txog qhov muaj zog corrosivity, kev khiav hauj lwm siab, thiab qhov chaw nruab.

1. Kev xaiv cov khoom siv plhaub (Core Corrosion Resistance, Tiv thaiv Plhaub Leakage)

• FRP (Fiberglass Reinforced Plastic) Plhaub (Lub Hom Phiaj Zoo Tshaj Plaws): - Cov yam ntxwv: Corrosion resistant, lub teeb yuag, tus nqi nruab nrab, acid thiab alkali resistant, haum rau feem ntau cov dej zoo (chloride ion cov ntsiab lus tsawg dua lossis sib npaug ntawm 5000mg / L); - Tsim nyog Scenarios: Hauv nroog, aquaculture, fais fab nroj tsuag desulfurization khib nyiab, thiab lwm yam pa membrane kho tshuab, kev khiav hauj lwm siab tsawg dua los yog sib npaug rau 1.6MPa; - Nco tseg: Tsis txhob tshav ntuj ncaj qha; Kev tiv thaiv lub hnub kom tsim nyog yuav tsum tau ua kom tsis txhob muaj lub plhaub aging.

• Stainless Steel Plhaub (Corrosion-}resistant, High-Sensure Scenarios): - Khoom siv: 304 stainless hlau (rau cov xwm txheej corrosion), 316L stainless hlau (rau cov xwm txheej corrosive heev, cov ntsiab lus chloride ion> 5000 mg/L); - Cov xwm txheej tsim nyog: Siab- ntsev, siab - cov dej khib nyiab chloride (piv txwv li, RO mloog zoo rov siv dua), siab - kev ua haujlwm siab (siab> 1.6 MPa), kev kho cov dej haus (yuav tsum tsis txhob hnyav hlau leaching); - Qhov zoo: siab zog, zoo sealing, ntev kev pab cuam lub neej (txog 10 xyoo los yog ntau tshaj); - Nco tseg: Kev tiv thaiv tsis tu ncua - kev txhim kho corrosion yog yuav tsum tau tiv thaiv stainless hlau xeb.

• Carbon Steel Rubber-lined Plhaub (High-Flow, Low-Pressure Scenarios): - Yam ntxwv: Tsawg nqi, siab zog, roj hmab hauv ob sab phlu muab corrosion kuj, haum rau siab -flow scenarios; - Cov xwm txheej tsim nyog: Siab- ntws membrane kev kho cov dej khib nyiab (cov khoom siv dej> 100 m³ / h), kev khiav hauj lwm siab tsawg dua lossis sib npaug li 1.0 MPa; - Nco tseg: Cov roj hmab hauv ob sab phlu yog nquag hnav thiab tev tawm, yuav tsum tau tshuaj xyuas kom tsis tu ncua kom tiv thaiv lub plhaub corrosion thiab to.

2. Kev Xaiv Kev Ntsuas Siab (Muab lub Membrane System Kev Ua Haujlwm Siab kom tsis txhob muaj kev puas tsuaj ntau dhau)

Lub siab ntsuas ntawm lub tsev lim kev ruaj ntseg yuav tsum muaj ntau dua los yog sib npaug rau 1.25 npaug ntawm kev khiav hauj lwm siab ntawm daim nyias nyias, thaum tseem txiav txim siab inlet dej siab hloov pauv. Kev lag luam- tus qauv kev ntsuas siab thiab lawv cov ntawv thov tsim nyog yog raws li hauv qab no:

• 0.6MPa: Tsim nyog rau qis- siab membrane systems (xws li UF ultrafiltration membranes, kev khiav hauj lwm siab 0.1 ~ 0.3MPa), feem ntau yog siv rau me me mus rau nruab nrab-sized aquaculture wastewater thiab municipal wastewater reuse;

• 1.0MPa: Haum rau cov pa RO membrane systems (kev khiav hauj lwm siab 0.4 ~ 0.8MPa), feem ntau siv nyob rau hauv feem ntau industrial thiab municipal membrane kev kho mob scenarios;

• 1.6MPa: Haum rau siab - siab RO membrane systems (kev khiav hauj lwm siab 0.8 ~ 1.2MPa), feem ntau yog siv rau siab - salinity khib nyiab, seawater desalination, thiab fais fab nroj tsuag boiler feedwater;

• 2.5MPa: Haum rau ultra- siab- siab RO membrane systems (kev khiav hauj lwm siab 1.2 ~ 2.0MPa), feem ntau yog siv rau seawater desalination thiab siab -concentration concentrate reuse.

3. Kev xaiv tsim qauv (Txhim kho rau kev teeb tsa thiab kev tu, txhim kho kev ua haujlwm zoo)

• Txoj Kev Txhim Kho: Ntsug (nyiam dua, txuag qhov chaw teeb tsa, ua kom yooj yim lim cov khoom hloov pauv thiab tshem tawm cov sludge), Kab rov tav (tsim rau qhov chaw teeb tsa uas muaj peev xwm tsawg thiab cov nqi ntws siab, nrog lub peev xwm ntau lawm> 100 m³ / h);

• Inlet/Outlet Direction: Cov lus "hauv qab hauv, sab saum toj" ua kom cov dej tsis sib xws los ntawm cov lim dej thiab zam kev luv luv -circuiting (dej tsis muaj dej ncaj qha mus rau hauv lub membrane); "sab saum toj hauv, hauv qab tawm" tuaj yeem siv rau hauv cov xwm txheej tshwj xeeb los pab txhawb kev tshem tawm huab cua ntawm lub lim;

• Cov Txheej Txheem Pabcuam: Yuav tsum muaj lub ntsuas qhov sib txawv (los saib xyuas cov khoom lim clogging, thaj tsam 0 ~ 0.2 MPa), qhov chaw nres nkoj (rau cov dej tsis tu ncua los tiv thaiv impurity buildup), qhov chaw tso pa tawm (kom tshem tawm huab cua thiab tiv thaiv huab cua thaiv), thiab cov khoom lim lim clamping (kom tiv thaiv cov ntsiab lus xoob thiab xyuas kom muaj lub foob).

(III) Specification Parameter Xaiv (Matching Flow Rate, Xyuas kom pom cov nyhuv thiab kev ua haujlwm zoo)
Cov ntsiab lus tseem ceeb yog "tus naj npawb ntawm cov ntsiab lus lim thiab lim txoj kab uas hla," uas yuav tsum tau muab xam raws li cov txheej txheem membrane tsim cov peev txheej tsim kom tsis txhob muaj dej txaus lossis cov khoom lim dej ntau dhau.

1. Filter Cartridge Quantity Calculation (Core Formula, Siv ncaj qha rau hauv Engineering xyaum)

Filter Cartridge Quantity=Design Flow Rate (m³/h) ÷ Rated Flow Rate per Filter Cartridge (m³/h) × 1.2 (Txoj Kev Nyab Xeeb, txhawm rau tiv nrog Flow Rate Fluctuations)

Rated Flow Rate ib Filter Cartridge Reference (Industry Standard, Raws li Lim Cartridge Length):

• 10-nti Filter Cartridge: 0.5 ~ 1.0 m³ / h;

• 20-nti Filter Cartridge: 1.0 ~ 2.0 m³ / h;

• 30-nti Filter Cartridge: 1.5 ~ 3.0 m³ / h;

• 40-inch Lim Cartridge: 2.0 ~ 4.0 m³ / h.

Piv txwv li: Ib qho RO membrane system yog tsim los tsim 20 m³ / h dej. Siv 20-inch PP yaj-blown lim cartridges (rated flow rate per cartridge 1.5 m³/h), tus naj npawb ntawm cartridges=20 ÷ 1.5 × 1.2 ≈ 16 cartridges . 16 cartridges yog siv tiag tiag (los yog 18 cartridges, nrog spares).

2. Lim txoj kab uas hla xaiv (Tshaj nrog Lim Cartridge kom muaj nuj nqis, kom ntseeg tau cov dej tsis sib haum)

Lub lim txoj kab uas hla yuav tsum tau xam raws li tus naj npawb thiab txoj kab uas hla ntawm lub lim cartridges kom paub meej cov dej txaus txaus ntawm cov cartridges (qhov sib nrug ntau dua lossis sib npaug li 10 hli) txhawm rau tiv thaiv cov dej tsis sib xws los ntawm cov khoom siv ntau dhau.

• 1 ~ 5 lim cartridges: φ200mm vaj tse;

• 6 ~ 12 lim cartridges: φ300mm vaj tse;

• 13 ~ 20 lim cartridges: φ400mm vaj tse;

• 21 ~ 30 lim cartridges: φ500mm vaj tse.

Ntxiv: Rau qhov siab -flow scenarios (dej ntau lawm> 50m³ / h), ntau lub lim kev ruaj ntseg tuaj yeem txuas nrog rau tib lub sijhawm kom tsis txhob muaj cov kab ntau dhau hauv ib lub lim dej, uas tuaj yeem cuam tshuam rau kev ua haujlwm, kev saib xyuas, thiab kev teeb tsa.