Scale inhibitor

Scale inhibitor: nws tuaj yeem tawg insoluble inorganic ntsev nyob rau hauv dej, tiv thaiv los yog cuam tshuam cov nag lossis daus thiab scaling ntawm insoluble inorganic ntsev ntawm cov hlau nto, thiab tswj kom zoo thaum tshav kub kub hloov ntawm cov khoom siv hlau. Kev tsim khoom yog npaj los ntawm kev noj epoxy resin thiab cov amino resin tshwj xeeb ua cov ntaub ntawv hauv paus, ntxiv cov nqi tsim nyog ntawm ntau yam tshuaj tiv thaiv xeb thiab cov tshuaj tiv thaiv corrosion los tsim ib qho kev tiv thaiv. Nws muaj kev tiv thaiv zoo heev, impermeability, xeb kuj, zoo scale kuj, thermal conductivity, zoo heev tiv thaiv tsis muaj zog acid, muaj zog alkali, organic solvents thiab lwm yam khoom, muaj zog adhesion, ci, saj zawg zog, compact thiab tawv xim zaj duab xis.

Folding editing mechanism

Los ntawm cov txheej txheem ntawm scale inhibitor, scale inhibition nyhuv ntawm scale inhibitor tuaj yeem muab faib ua chelation, dispersion thiab lattice distortion. Hauv kev soj ntsuam kev soj ntsuam, dispersion yog kev kho ntawm coupling nyhuv, thiab lattice distortion nyhuv yog kev kho ntawm dispersion nyhuv.

Cov yam ntxwv ua haujlwm ntawm kev ua haujlwm siab rov qab osmosis nplai inhibitor

Nws tsis yog yuav tsum tau ntxiv cov kua qaub ntxiv, uas tuaj yeem tiv thaiv corrosion ntawm cov khoom siv los ntawm cov tshuaj acidic.

2 chelating nyhuv yog ruaj khov, tuaj yeem tiv thaiv cov hlau, manganese thiab lwm yam hlau ions ntawm lub raj xa dej los tsim cov av.

Nws yog tsim rau txhua yam ntawm cov ntaub ntawv membrane raj.

Qhov kev lag luam loj tshaj plaws inhibition tswj tuaj yeem ua tiav nrog tsawg dua thiab tus nqi qis dua.

Nws tuaj yeem txo qhov kev ntxuav ntawm daim nyias nyias thiab ua kom lub neej ua haujlwm ntev ntawm daim nyias nyias.

Folding chelation

Chelation yog txheej txheem uas lub hauv paus ion khi rau ob lossis ntau qhov sib koom ua ke ntawm tib lub polydentate ligand. Raws li qhov tshwm sim ntawm chelation, scaling cations (xws li Ca2 +, Mg2 +) hnov ​​​​mob nrog cov neeg ua haujlwm chelating los tsim cov chelates ruaj khov, uas tiv thaiv lawv los ntawm kev sib cuag nrog scaling anions (xws li CO32 -, SO42 -, PO43 - thiab sio32 -), yog li no zoo heev txo qhov tshwm sim ntawm scaling. Chelation yog stoichiometric, piv txwv li, kev khi ntawm EDTA molecule rau divalent hlau ion.

Lub peev xwm chelate ntawm cov neeg ua haujlwm chelate tuaj yeem qhia tau los ntawm tus nqi chelate ntawm calcium. Feem ntau, cov khoom siv kho dej ua lag luam (qhov loj ntawm cov khoom siv hauv qab no yog tag nrho 50%, suav los ntawm CaCO3): aminotrimethylphosphonic acid (ATMP) - 300mg / g; diethylenetriamine pentamethylene phosphonic acid (dtpmp) - 450mg / g; ethylenediamine tetraacetic acid (EDTA) - 15om / g; Hydroxyethyl diphosphonic acid (HEDP) - 45 OM. Hauv lwm lo lus, 1mg chelate tus neeg saib xyuas tuaj yeem tsuas yog chelate calcium carbonate scale tsawg dua 0.5mg. Yog hais tias calcium thiab magnesium ions nrog tag nrho cov hardness ntawm smm0fl yuav tsum tau stabilized nyob rau hauv lub circulating dej system, tus neeg sawv cev chelating yuav tsum yog 1000m / L, uas yog kev lag luam thiab siv tau. Yog li ntawd, kev koom tes ntawm scale inhibitor chelation tsuas yog ib feem me me xwb. Txawm li cas los xij, chelation ntawm scale inhibitors plays lub luag haujlwm tseem ceeb hauv nruab nrab thiab qis hardness dej.

Folding dispersion

Qhov tshwm sim ntawm dispersion yog los tiv thaiv kev sib cuag thiab agglomeration ntawm oxide nplai hais, yog li tiv thaiv kev loj hlob ntawm oxide nplai. Cov scaling hais tuaj yeem yog calcium thiab magnesium ions, pua pua ntawm CaCO3 thiab MgCO3 molecules, plua plav, sediment lossis lwm yam dej-insoluble. Dispersant yog ib tug polymer nrog ib tug txheeb ze molecular hnyav (los yog degree ntawm polymerization), thiab nws dispersion yog ze ze rau cov txheeb ze molecular hnyav (los yog degree ntawm polymerization). Yog hais tias lub degree ntawm polymerization tsawg dhau, tus naj npawb ntawm cov khoom adsorbed thiab dispersed yog me me, thiab dispersion efficiency yog tsawg; Yog hais tias lub degree ntawm polymerization siab dhau lawm, tus naj npawb ntawm cov khoom adsorbed thiab dispersed yog ntau dhau lawm, cov dej yuav turbid thiab txawm tsim flocs (lub sij hawm no, nws cov nyhuv zoo ib yam li cov flocculant). Piv nrog rau txoj kev chelating, dispersion zoo. Cov txiaj ntsig tau pom tias 1 mg dispersant tuaj yeem ua rau 10-100 mg scale hais muaj nyob ruaj khov hauv cov dej ntws. Hauv nruab nrab thiab siab hardness dej, dispersion ntawm nplai inhibitor plays lub luag haujlwm tseem ceeb.

Folded lattice distortion

Thaum lub hardness thiab alkalinity ntawm lub system yog siab, thiab tus neeg sawv cev chelating thiab dispersant tsis txaus los tiv thaiv lawv tag nrho cov nag lossis daus, lawv yuav inevitably precipitate. Yog tias tsis muaj cov nplais nyob rau saum npoo ntawm cov khoom siv hluav taws xob, cov nplai yuav loj tuaj rau ntawm qhov chaw ntawm cov khoom siv hluav taws xob. Yog hais tias muaj txaus dispersant, cov av hais (muaj pua pua ntawm calcium carbonate molecules) yog absorbed.