Ukuqhathaniswa kwezinzuzo nezinkinga zokusebenzisa i-sodium carbonate noma i-sodium hydroxide ukulungisa inani le-pH yamanzi okuphakelayo kubhayela

1, amanzi okuphakela kubhayela ukulungisa inani le-pH lesizathu

Namuhla, ama-boilers amaningi e-China asebenzisa amanzi a-reverse osmosis demineralized noma i-sodium ion resin exchange amanzi athambile, i-osmosis ehlanekezelwe amanzi noma i-sodium ion resin exchange ethambile amanzi inani le-pH liphansi kakhulu futhi line-acidic, i-osmosis ehlanekezelwe amanzi inani le-pH ngokuvamile liyi-5-6, i-sodium ion resin exchange i-pH yamanzi ethambile ngokuvamile iba ngu-5.5-7.5, ukuze kuxazululwe ukugqwala kokuphakelwa kwamanzi ane-asidi kumabhoyela namapayipi, Ngokwezinhlinzeko zezinga likazwelonke le-BG/T1576-2008, inani le-pH likabhayela wezimboni. amanzi aphakathi kuka-7-9 kanti inani le-pH lamanzi akhishwe amaminerali liphakathi kuka-8-9.5, ngakho ukunikezwa kwamanzi kubhayela kudinga ukulungisa inani le-pH.

2, umgomo oyisisekelo wokwengeza i-sodium carbonate emanzini okuphakelayo kubhayela ukulungisa inani le-pH

I-sodium carbonate ivame ukubizwa ngokuthi i-soda, i-soda ash, i-soda ash, i-alkali yokugeza, ihlukaniswa njengosawoti, hhayi i-alkali, ifomula yamakhemikhali i-Na2CO3, ngaphansi kwezimo ezijwayelekile zempushana emhlophe noma usawoti omuhle.Umgomo oyisisekelo wokwengeza i-sodium carbonate emanzini okuphakelayo kubhayela ukulungisa inani le-pH ukusebenzisa i-sodium carbonate ukuze incibilike emanzini futhi ibe yi-alkaline, enganciphisa isikhutha emanzini okuphakelayo ane-asidi futhi ixazulule ukugqwala kwamanzi athambile ane-asidi noma usawoti. amanzi ku-boiler kanye nepayipi.I-Sodium carbonate iyi-electrolyte ebuthakathaka, encibilikisiwe emanzini ukuze yakhe isisombululo se-buffer ye-sodium carbonate ne-sodium bicarbonate, kukhona ibhalansi ye-electrolytic esixazululweni, ngokusetshenziswa kwe-electrolytic hydroxide, ibhalansi izoqhubeka iye kwesokudla, i-pH ekhona ekuphenduleni ayishintshi kakhulu.

Inqubo ye-sodium carbonate eyinhloko ye-hydrolysis:

Na2CO3 Sodium carbonate +H2O amanzi = NaHCO3 sodium bicarbonate +NaOH sodium hydroxide

Inqubo ye-sodium carbonate yesibili ye-hydrolysis:

NaHCO3 sodium bicarbonate +H2O amanzi =H2CO3 carbonic acid +NaOH sodium hydroxide

I-sodium carbonate primary hydrolyzed ion equation:

(CO3) 2-carbonic acid +H2O amanzi =HCO3- bicarbonate +OH- hydroxide

I-sodium carbonate yesibili i-hydrolyzed ion equation:

I-HCO3- bicarbonate +H2O amanzi =H2CO3 carbonic acid +OH- hydroxide

3, isimiso esiyisisekelo sokwengeza i-sodium hydroxide emanzini okubhayela ukulungisa inani le-pH

I-sodium hydroxide ibizwa nangokuthi i-caustic soda, i-caustic soda, i-caustic soda, i-caustic soda, ngokuvamile i-flake emhlophe, ifomula yamakhemikhali i-NaOH, i-sodium hydroxide ine-alkaline eqinile, egqwala kakhulu.

I-ionization equation ye-sodium hydroxide: NaOH=Na++OH-

Ukwengeza i-sodium hydroxide emanzini kubhayela kungamisa ifilimu evikelayo ebusweni bensimbi, kuthuthukise inani le-pH yamanzi okuphakelayo kubhayela namanzi esithandweni, ukuze kuxazululwe ukugqwala kwamanzi athambekele e-asidi noma amanzi ancibilikisiwe emanzini. ubhayela kanye nepayipi, futhi uvikele izinto zensimbi ekugqwaleni.

4. Ubuhle nobubi bokusebenzisa i-sodium carbonate noma i-sodium hydroxide ukulungisa inani le-pH yamanzi okuphakela kubhayela kuyaqhathaniswa.

4.1 Ijubane lokukhuphula inani le-pH nge-sodium carbonate ne-sodium hydroxide yamanzi okuphakela kubhayela kanye nesikhathi sokugcina umphumela wokusetshenziswa kuhlukile.

Ijubane lokwengeza i-sodium carbonate kubhayela wamanzi ukuze kwandiswe inani le-pH lihamba kancane kunesodium hydroxide.Ngenxa yokuthi i-sodium carbonate ikhiqiza isisombululo se-buffer, inokuguquguquka okuncane futhi izinzile futhi kulula ukuyilungisa.Kodwa-ke, ububanzi bokulungiswa kwe-pH bunqunyelwe.Lapho kulungiswa inani le-pH elifanayo, inani le-sodium carbonate lizoba likhulu kunalelo le-sodium hydroxide.Umphumela wokusetshenziswa ugcinwa isikhathi eside, futhi i-pH yamanzi akulula ukuyiyeka.

I-sodium hydroxide iyisisekelo esiqinile kanye ne-electrolyte eqinile, i-sodium hydroxide ukulungisa inani le-pH le-volatility inkulu, i-sodium hydroxide emva kokwengezwa kwamanzi i-pH kulula ukwandisa, lungisa inani le-pH ngokushesha futhi liqonde kakhudlwana, kodwa futhi kulula ukugumbuqelwa awukwazi ukubeka okuningi, uma kuqhathaniswa ne-sodium carbonate ukwengeza okuncane kakhulu kungafinyelela izidingo zenkomba ye-pH, okungukuthi, nakuba i-sodium hydroxide pH value yanda, Nokho, inani le-sodium hydroxide eyengeziwe alilikhulu, okungukuthi, ikhono lamanzi lokunciphisa i-asidi yeqembu le-hydroxide alinyuki kakhulu, i-pH izokwehla maduze.

4.2 Umonakalo odalwe ukwengezwa ngokweqile kwe-sodium carbonate ne-sodium hydroxide ukukhulisa inani le-pH yamanzi okuphakela kubhayela wehlukile.

Ukwengeza i-sodium carbonate eningi ku-boiler yamanzi ukuze ulungise inani le-pH kuzokwandisa usawoti wamanzi ebhodwe kanye nokuhamba kahle;Kunama-ion amaningi e-bicarbonate emanzini ebhodwe, futhi ama-ion e-bicarbonate aboliswa kalula abe yi-carbon dioxide uma eshiswa.I-CO2 ingena kusishintshi sokushisa futhi ijiye amanzi ngesitimu.I-sodium carbonate ayikwazi nje kuphela ukulungisa inani le-pH lamanzi abuyayo e-steam ne-steam condensate, kodwa futhi yehlisa inani le-pH yesitimu kanye ne-condensate, igqwalise isishintshi sokushisa kanye nepayipi le-condensate.Isizathu sokuthi kungani ama-ayoni ensimbi ku-steam condensate abuyayo emanzini eqe umbala ojwayelekile ophuzi noma obomvu.

Ukwengeza i-sodium hydroxide eningi kakhulu emanzini esithandweni ukuze ulungise inani le-pH kuzobangela i-alkali yamanzi ebhodweni ibe phezulu kakhulu, futhi amanzi nesoda kuzovela.Inani le-sodium hydroxide akulula ukulilawula, futhi i-NaOH yamahhala eyeqile izodala i-alkalinity enkulu yesihlobo, futhi ukugqwala kwe-alkali nakho kuzodala ukugqwala kwezinto zokusebenza.Umbhali ubone ithangi lemfucumfucu yengilazi eliqiniswe ngengilazi eligcwele iziqephu endaweni yomsebenzisi, elagqwala futhi labhodlozwa ngenxa yokusetshenziswa kwe-sodium hydroxide ukulawula inani le-pH le-debrine.I-sodium hydroxide ayikwazi ukulungisa inani le-pH lamanzi okubuyisa isitimu kanye ne-steam condensation, futhi ayikwazi ukulawula ukugqwala kwesitimu kanye ne-steam condensation kubuyisela okokusebenza kwesistimu yamanzi kanye nenethiwekhi yamapayipi.

4.3 Ukuphepha kwe-sodium carbonate ne-sodium hydroxide esetshenziswa emanzini okuphakelayo kubhayela ukuphakamisa inani le-pH kuhlukile

I-Sodium carbonate imnene, ingeyezinto zebanga lokudla, ukugqugquzela okuncane, ukugqwala okuncane, okujwayelekile kungathinteka ngesandla, isidingo sesikhathi eside sokugqoka amagilavu.

I-sodium hydroxide iyimpahla eyingozi, ebolayo, futhi isisombululo sayo noma uthuli olufafazwe esikhumbeni, ikakhulukazi kulwelwesi lwamafinyila, lungaveza utwayi oluthambile, futhi lungangena ezicutshini ezijulile.Ukusha kushiya isibazi.Ukuchaphaza esweni, akugcini nje ngokulimaza i-cornea, kodwa futhi kulimaze izicubu ezijulile zeso.Ngakho-ke, opharetha kufanele agcobe i-neutral kanye ne-hydrophobic oint esikhumbeni, futhi kufanele agqoke izingubo zokusebenza, imaski, izibuko zokuzivikela, amaglavu enjoloba, amaphinifa enjoloba, amabhuzu enjoloba amade nezinye izinto zokuvikela abasebenzi ukuze enze umsebenzi omuhle wokuzivikela komuntu siqu.

Kunamacala okusetshenziswa nawokuhlola abonisa: I-sodium hydroxide ne-sodium carbonate asetshenziswa ngokushintshana, noma axutshwe, umnotho wawo kanye nomphumela kungcono kunokusebenzisa isilawuli esithile se-pH kuphela.Lapho inani le-pH lamanzi okuphakela kubhayela litholakala liphansi kakhulu, enye i-sodium hydroxide ingase yengezwe ngokufanelekile ukuze kwenyuswe ngokushesha inani le-pH.Ngemuva kokuthi i-sodium hydroxide ihlakazwe ngokuphelele, enye i-sodium carbonate ingafakwa ukuze ikhulise i-carbonate emanzini.Lokhu kunganciphisa ukwehla kwenani le-pH lamanzi okuphakelayo;Ngenxa yokuthi inani le-sodium carbonate lingafakwa ngaphezulu, amandla okugcina ama-carbonates emanzini angaphezulu, ngakho-ke ngokuvamile i-sodium carbonate ingasetshenziswa ukugcina inani le-pH lokuhlinzekwa kwamanzi namanzi ebhodwe, kuphela lapho inani le-pH amanzi aphansi kakhulu, umlobi uncoma ukusetshenziswa kwe-sodium hydroxide ukuze kwandiswe ngokushesha inani le-pH, ukuze lezi zibili zixutshwe ngokuhlukile, kokubili umphumela wezomnotho nobuhle.