Chaw tsim tshuaj paus muaj tshuaj rau kev ua dej ntxhia thiab kev kho dej

30,000 t / xyoo GF flotation reagent kab · 20,000 m3 tank cia

QINGQUAN

RO Antiscalant Dosing Calculation: Los ntawm mg / L rau Dosing Pump Flow

2026-10-21 10:13:00 dr hab

Ib qho RO antiscalant dosing suav hloov pauv cov tshuaj noj-dej uas tau xaiv rau hauv cov tshuaj lom neeg uas xav tau thiab kev siv tshuaj-tswj ntim ntws. Rau ib koob tshuaj qhia raws li cov khoom lag luam muab:

  • Khoom noj khoom haus (kg / h) = Pub txaus (m³ / h) × Dose (mg / L) ÷ 1,000

  • Cov khoom lag luam tsis zoo (L / h) = Cov khoom siv (kg / h) ÷ Khoom ntom ntom (kg / L)

Yog hais tias cov tshuaj tua kab mob yog diluted ua ntej txhaj tshuaj, qhov kev suav yuav tsum suav nrog cov khoom siv-cov khoom loj thiab qhov ntom ntawm cov tshuaj npaj npaj.

Kev suav tsuas yog txhim khu kev qha raws li nws cov khoom siv. Cov koob tshuaj pom zoo, cov khoom xyaw nquag concentration thiab kev npaj-kev daws teeb meem yog qhov sib txawv. Kev hloov pauv chav tsev kom raug txiav txim siab tus nqi noj yuav tsum tau; nws tsis tsim kom muaj kev xaiv koob tshuaj uas haum rau ib qho kev rov qab osmosis (RO) system.

1. Yam Ntxim Ntxim Ntxim Ntxim Ntxim Ntxim Ntxim Ntxim ntawm Qhov Ntsws Thiab Qhov Ncauj Tshuaj Koj Yuav Tsum Siv?

Xaiv cov koob tshuaj rau daim ntawv thov RO tshwj xeeb

Kev xaiv Antiscalant yuav tsum xav txog kev soj ntsuam pub-dej, qhov xav tau ntawm cov tshuaj lom neeg muaj pes tsawg leeg, pH, qhov kub thiab txias, rov qab, kev teeb tsa membrane thiab pretreatment. Cov koob tshuaj uas tau xaiv yuav tsum ua raws li daim ntawv thov kev ntsuam xyuas thiab cov lus pom zoo rau cov khoom tshwj xeeb thiab cov txheej txheem membrane.

Ib koob tshuaj uas siv rau ib qho kev tsim yuav tsum tsis txhob raug xa mus rau lwm yam khoom, txawm tias ob qho tib si tau piav qhia tias yog RO antiscalants. Kev hloov pauv hauv kev rov qab tuaj yeem hloov kho cov tshuaj chemistry, tab sis lawv tsis muab qhov sib npaug yooj yim rau kev suav cov tshuaj uas xav tau. Ntxiv cov tshuaj ntxiv tsis yog qhov hloov pauv rau kev ntsuas qhov ntsuas qhov pheej hmoo thiab cov khoom sib xws.

Ua ntej xam qhov noj, paub meej tias qhov kev pom zoo pom zoo txhais li cas:

  • Supplied-Product Dose: qhov loj ntawm cov khoom lag luam ntxiv rau ib chav tsev ntim ntawm cov khoom noj khoom haus.

  • Cov tshuaj nquag nquag: qhov loj ntawm ib tug tshwj xeeb active constituent nyob rau hauv ib chav tsev ntim ntawm kev kho mob pub dej.

  • Stock-solution concentration: qhov kev faib ua feem ntawm cov khoom siv nyob rau hauv cov kua npaj xa los ntawm dosing twj tso kua mis.

Cov nqi no tsis hloov pauv tau. Yog tias qhov kev pom zoo twb tau hais tias yog mg / L ntawm cov khoom siv, tsis txhob siv qhov kev kho cov ntsiab lus ntxiv.

Yog tias tus neeg muag khoom qhia txog ppm es tsis yog mg/L, paub meej tias lub hauv paus tau teev tseg. Qhov loj-raws li ppm tus nqi sawv cev rau mg/kg; hloov nws raws nraim rau mg / L yuav tsum muaj cov kua dej ntom ntom. Cov kev suav hauv kab lus no siv lub hauv paus qhia meej txog mg/L.

Siv cov dej ntws ntawm qhov dosing point

Rau ib koob tshuaj ib liter ntawm RO pub dej, siv cov dej ntws nkag mus rau hauv thaj tsam kev kho mob, tsis yog cov dej permeate.

Rau ib qho yooj yim khov kho-xeev RO system:

Rov qab = Permeate flow ÷ Feed flow

Piv txwv li, yog tias permeate ntau lawm yog 75 m³ / h ntawm 75% rov qab, cov khoom noj sib txuas yog:

75 = 0.75 TZS 100 m³ / h

Siv 75 m³ / h es tsis txhob ntawm 100 m³ / h nyob rau hauv kev xam raws li pub-dej koob tshuaj yuav underestimate qhov yuav tsum tau cov khoom loj los ntawm 25%.

Cov kab ke nrog cov kwj deg los yog ntau qhov kev txhaj tshuaj yuav tsum tau saib xyuas ntxiv. Txhais cov kwj deg uas raug kho, txheeb xyuas qhov twg cov tshuaj tshiab nkag mus rau hauv lub cev, thiab suav rau txhua yam tshuaj rov qab los ntawm kev rov ua dua tshiab. Internal circulation flow tsis tau txais qhov sib npaug ntawm cov khoom noj tshiab uas yuav tsum tau txhaj tshuaj tshiab.

2. Yuav Hloov Cov Tshuaj Antiscalant li cas ntawm mg/L rau kg/h thiab L/h

Xam qhov xav tau cov khoom loj txaus

Rau ib koob tshuaj qhia raws li cov khoom lag luam muab:

Khoom hnyav (kg / h) = Pub txaus (m³ / h) × Dose (mg / L) ÷ 1,000

Kev faib los ntawm 1,000 hloov cov units kom raug. Ib lub cubic meter muaj 1,000 litres, thaum ib kilogram muaj 1,000,000 milligrams.

Cov variables yog:

Hloov pauv Lub ntsiab lus Chav tsev
Qf Pub ntws ntawm qhov taw qhia dosing m³/h
Dp Dose qhia raws li cov khoom siv mg/L
mp Yuav tsum tau muab khoom-cov khoom loj txaus kg/h
ρ p Qhov ntom ntawm cov khoom siv kg/L
qp ua Cov khoom ntim tsis zoo L/h

Hloov cov khoom loj ntws mus rau hauv lub twj tso kua mis ntim ntws

Thaum paub qhov xav tau loj txaus, xam cov khoom ntim zoo:

Cov khoom lag luam tsis zoo (L / h) = Cov khoom lag luam loj (kg / h) ÷ Khoom ntom ntom (kg / L)

Density matters because kilograms and litres are not interchangeable unless the liquid density is known. Siv qhov ntom ntom siv rau cov khoom siv qib thiab cov kev ntsuas cuam tshuam.

Ua hauj lwm piv txwv: xam zoo zoo antiscalant flow

Cov txiaj ntsig hauv qab no yog cov khoom siv suav nrog hypothetical. Lawv tsis yog QINGQUAN cov khoom tshwj xeeb lossis cov koob tshuaj pom zoo.

Xav tias:

  • RO feed flow: 100 m³ / h

  • Xaiv cov khoom siv-cov koob tshuaj: 3 mg / L

  • Raws li cov khoom ntom ntom: 1.20 kg / L

Kauj Ruam 1: xam cov khoom siv

100 × 3 ÷ 1,000 = 0.300 kg / h

Kauj Ruam 2: Hloov huab cua ntws mus rau hauv ntim ntws

0.300 ÷ 1.20 = 0.250 L / h

Raws li cov kev xav no, qhov yuav tsum tau pub tus nqi yog 0.300 kg ntawm cov khoom muab ib teev, sib npaug rau 0.250 L / h ntawm qhov xav tau ceev.

Qhov kev suav no qhia txog kev hloov pauv chav tsev nkaus xwb. Cov koob tshuaj yuav tsum raug xaiv cais raws li dej chemistry, cov txheej txheem membrane thiab cov khoom siv tshwj xeeb cov lus pom zoo.

Thaum twg yog qhov tsim nyog kho cov ntsiab lus tseem ceeb?

Yog hais tias lub hom phiaj concentration yog qhia meej meej raws li active ingredient, cov khoom-cov khoom loj yuav tsum tau kho kom paub tseeb tias active pawg feem.

Khoom loj txaus (kg / h) = Pub txaus (m³ / h) × Active koob tshuaj (mg / L) ÷ [1,000 × Active pawg feem]

Lub active pawg feem yog qhia raws li ib tug decimal. Piv txwv li, ib qho kev paub tseeb feem ntawm 0.10 sawv cev rau 10% los ntawm huab hwm coj.

Siv qhov kev kho no tsuas yog thaum cov lus pom zoo ntawm koob tshuaj hais txog cov khoom muaj txiaj ntsig uas tau txheeb xyuas thiab cov ntaub ntawv cov khoom txhais cov ntsiab lus tseem ceeb. Qhov ntom ntom, pH lossis cov lus piav qhia xws li "ntseeg" tsis tuaj yeem hloov pauv rau cov ntaub ntawv tseem ceeb uas ploj lawm.

3. Yuav ua li cas xam Dosing-Twj Flow rau Diluted Stock Solution

Txhais cov khoom concentration kom raug

Ib qho kev daws teeb meem uas muaj 10% w / w muab cov khoom muaj 10 kg ntawm cov khoom lag luam hauv txhua 100 kg ntawm cov tshuaj tiav. Qhov no tsis txhais tau hais tias 10% ntawm cov tshuaj ntim yog cov khoom lag luam, thiab tsis txhais tau tias cov khoom lag luam muaj 10% cov khoom xyaw.

Rau kev daws teeb meem loj raws li cov khoom lag luam, txhais:

  • wp: muab-cov khoom loj feem hauv cov tshuaj npaj.

  • ρs: Qhov ceev ntawm cov tshuaj npaj npaj, hauv kg / L.

  • qs: ua. xav tau cov khoom lag luam-kev daws teeb meem, hauv L / h.

  • mp: yuav tsum tau muab khoom-cov khoom loj txaus, hauv kg / h.

Qhov sib npaug ntawm cov khoom lag luam yog:

Stock-solution flow (L/h) = Product mass flow (kg/h) ÷ [Cov khoom loj feem × Tshuag-solution ntom (kg / L)]

Cov khoom loj feem ntau thiab cov khoom ntim yuav tsum xa mus rau tib qho kev npaj daws teeb meem. Tsis txhob cia li hloov qhov ntom ntawm cov khoom zoo huv si rau qhov ntom ntawm cov khoom diluted.

Daim ntawv qhia ntim raws li dilution xav tau nws tus kheej kom meej meej lub hauv paus xam. Ib nqe lus xws li "10% w/w" tsis tuaj yeem kho li 10 litres ntawm cov khoom sib xyaw nrog 90 litres dej.

Ua haujlwm piv txwv: suav diluted stock flow

Txuas ntxiv nrog qhov kev xav tau ntawm 0.300 kg / h ntawm cov khoom siv.

Xav tias:

  • Yuav tsum tau muab khoom-cov khoom loj txaus: 0.300 kg / h

  • Muab khoom-cov khoom loj feem hauv Tshuag: 0.10

  • Npaj cov khoom-kev daws teeb meem: 1.02 kg / L

Qhov xav tau ntawm cov khoom lag luam-kev daws teeb meem yog:

0.300 ÷ (0.10 × 1.02) = 2.94 L / h

Tus nqi ntawm cov khoom lag luam yog kwv yees li:

Luas = 2.94 x 1.02 3.00 kg / h

Ntawm cov khoom lag luam loj feem ntawm 0.10, cov tshuaj no xa tawm kwv yees li 0.300 kg / h ntawm cov khoom xa tuaj. Dilution tsub kom lub ntim xa los ntawm lub twj tso kua mis, tab sis nws tsis hloov qhov yuav tsum tau muab-cov khoom loj.

Tsuas yog muab cov khoom ntim zoo los ntawm kaum yuav tsis quav ntsej qhov sib txawv ntawm qhov ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom.

Rau qhov tseeb installation, ua raws li kev npaj thiab dilution tej yam kev mob tso cai rau cov formulation tshwj xeeb. Dilution-dej zoo, cia tej yam kev mob thiab cov khoom stability yuav tsum tau soj ntsuam raws li cov ntaub ntawv ntawm cov khoom siv. Lub hypothetical 10% Tshuag siv ntawm no yog ib qho piv txwv suav, tsis yog kev qhia txog kev npaj thoob ntiaj teb.

4. Yam khoom twg RO Antiscalant Cov ntaub ntawv yuav tsum tau lees paub?

Sib piv qhov ntom ntom rau qib khoom siv

QINGQUAN teev cov kua qaub thiab alkaline RO antiscalants. Nws cov ntaub ntawv luam tawm txawv qhov txawv ntawm cov qauv thiab cov ntsiab lus ntawm cov khoom siv acidic, qhia txog vim li cas cov qib nkag yuav tsum raug txheeb xyuas ua ntej yuav siv tus nqi ceev.

Cov khoom siv thiab khoom siv version Tshaj tawm ceev ntawm 20 ° C Tshaj tawm pH ntawm 1% tov
RO Acid Antiscalant, txheem tov 1.03-1.06g / cm³ 1.5–2.5 hli
RO Acid Antiscalant, concentrated tov 1.40-1.50 g / cm³ 1.5–2.5 hli
RO Alkaline Antiscalant 1.16–1.36 g / cm³ 10.0–11.0 Nws

Qhov ceev hauv g / cm³ muaj cov lej tib yam li qhov ceev hauv kg / L. Txawm li cas los xij, kev tshaj tawm ntau yam tsis yog qhov ntsuas tseeb ntawm tus kheej batch. Siv lub midpoint ntawm ib qho kev kwv yees; nws tsis tsim kom muaj qhov ntom ntom ntawm cov khoom xa tuaj.

Ib qho kev hloov pauv ntawm tus qauv mus rau cov khoom lag luam tseem ceeb kuj yuav tsum muaj kev lees paub tias cov tshuaj pom zoo muab cov khoom siv tseem siv tau. Kev hloov kho qhov ntom ntom ib leeg tsis ua pov thawj tias qhov kev pom zoo thawj koob tshuaj siv tau rau qib tshiab.

Khaws cov khoom pH cais ntawm RO kev ua haujlwm

Cov pH qhov tseem ceeb hauv lub rooj hais txog 1% cov khoom siv tshuaj. Lawv tsis tsim cov pH kev khiav hauj lwm ntawm RO pub dej los yog txiav txim siab qhov tseeb koob tshuaj rau ib qho kev membrane system.

Kev xaiv cov khoom lag luam xav tau cov ntaub ntawv thov thiab cov ntaub ntawv sib raug zoo, tsis yog daim ntawv lo ntawm cov khoom. Yog hais tias daim nyias nyias, pretreatment los yog formulation hloov, yav tas los compatibility assumption yuav tsum tau muab tshuaj xyuas.

5. Yuav Ua Li Cas Txheeb Xyuas Qhov Kev Siv Tau - Pump Delivery

Sib piv ntsuas kev xa khoom nrog lub hom phiaj xam

Kev ntsuas tus nqi ntws yog lub hom phiaj rau kev txheeb xyuas, tsis yog pov thawj tias lub twj tso kua mis muab tso rau hauv qhov chaw ua haujlwm.

Kev xa tawm tiag yog nyob ntawm tus qauv twj tso kua mis, cov khoom ua kua, hom kev tswj thiab kev ua haujlwm. Qhov feem pua ​​​​ntawm cov kab mob stroke-ntev lossis ntau zaus yuav tsum tsis txhob xav tias yuav tsum sib haum ncaj qha rau tus nqi L / h tshwj tsis yog cov ntaub ntawv twj tso kua mis txhawb kev sib raug zoo.

Thaum muaj kev ntsuas kev xa khoom tsim nyog muaj:

Ntsuas ntws (L / h) = ntim ntim (L) ÷ Lub sij hawm dhau (h)

Siv ib txoj kev ntsuas tsim nyog rau cov khoom siv thiab tshuaj. Sib piv cov ntsuas ntsuas nrog lub hom phiaj ntsuas raws li kev ua haujlwm cuam tshuam.

Rov xam cov koob tshuaj xa tuaj

Rau ib qho kev daws teeb meem nrog kev lees paub thiab tsis hloov pauv-cov khoom lag luam feem ntau thiab qhov ntom ntom, qhov tseeb qhov nruab nrab muab cov khoom noj tuaj yeem suav tau raws li:

Cov khoom siv tiag tiag-cov koob tshuaj (mg / L) = 1,000 × Ntsuas cov khoom ntws (L / h) × Cov khoom loj feem × Tshuag ceev (kg / L) ÷ Pub txaus (m³ / h)

Rau cov piv txwv hypothetical, siv cov khoom lag luam ntws ntawm 2.94 L / h, cov khoom siv khoom loj ntawm 0.10, cov khoom ntom ntom ntawm 1.02 kg / L thiab pub txaus ntawm 100 m³ / h muab:

1,000 × 2.94 × 0.10 × 1.02 ÷ 100 = kwv yees li 3.00 mg / L

Qhov sib txawv me me tshwm sim los ntawm kev nthuav qhia cov khoom lag luam suav mus rau ob qhov chaw lej. Qhov kev suav no txheeb xyuas qhov nruab nrab cov khoom siv-cov khoom xa tuaj; nws tsis ua pov thawj tias cov koob tshuaj uas tau xaiv yuav tswj scaling nyob rau hauv cov dej tiag tiag.

Thaum pub dej sib txawv, sib piv tag nrho cov khoom xa nrog tag nrho cov khoom noj-dej ntim rau tib lub sijhawm. Qhov koob tshuaj nruab nrab tsis pom tias qhov koob tshuaj instantaneous tseem nyob tas mus li thoob plaws lub sijhawm ntawd.

Rov xyuas qhov kev suav thaum pub zaub mov, qib khoom siv, cov khoom ntim khoom lossis kev hloov ceev.

Ua ntej lees paub qhov kev npaj tshuaj, khaws cov tswv yim no ua ke:

  • Feed flow ntawm dosing point

  • Tus nqi koob tshuaj thiab nws lub hauv paus

  • Muab cov khoom qib

  • Tshuag concentration thiab ntom, yog siv dilution

  • Txheeb xyuas lub twj tso kua mis xa tawm raws li kev ua haujlwm cuam tshuam

Rau cov khoom siv tshwj xeeb uas xav tau kev pom zoo, hu rau QINGQUAN nrog rau daim ntawv thov RO npaj, muab cov khoom lag luam qib thiab kev siv tshuaj.

Cov ntaub ntawv

  1. DuPont. FilmTec Rov qab Osmosis Membranes Phau Ntawv Qhia. Daim ntawv 45-D01504-en, Hloov kho 20, Lub Yim Hli 2026.

  2. Hydranautics / Nitto. Tshuaj Pretreatment rau RO thiab NF. Technical Application Bulletin TAB 111, Lub Ob Hlis 2022.

  3. IUPAC. Compendium ntawm Chemical Terminology, 5th edition, online version 5.0.0, 2025. "Mass fraction."

  4. American Dej Tshuaj. AWC A-101 Product Information Sheet. Cov ntaub ntawv luam tawm tus cim 446-R4 10.01.20.

  5. Toray. Rov qab Osmosis Membrane Element Kev Ua Haujlwm, Kev Kho, thiab Kev Taw Qhia. 06-G-MB1-260430 (EN), Lub Plaub Hlis 2026.

  6. ProMinent. Solenoid Metering Pump, gamma/X, GMXa: Cov lus qhia ua haujlwm. Part 984586, BA G 067 03/22 EN.