Ntụnyere uru na ọghọm nke iji sodium carbonate ma ọ bụ sodium hydroxide gbanwee uru pH maka mmiri nri boiler

1, mmiri esi nri nke boiler iji gbanwee uru pH nke ihe kpatara ya

Taa, ọtụtụ ụlọ ọrụ na-eji mmiri reverse osmosis demineralized water ma ọ bụ sodium ion resin exchange softened water, reverse osmosis demineralized water ma ọ bụ sodium ion resin exchange softened water pH value dịkarịsịrị ala ma dịkwa acidic, reverse osmosis demineralized water pH value bụkarị 5-6, sodium ion resin exchange softened water pH value bụkarị 5.5-7.5, iji dozie mmebi nke mmiri acidic na-enye na boilers na paịpụ. Dịka iwu nke ọkọlọtọ mba BG/T1576-2008 si dị, pH value nke mmiri boilers ụlọ ọrụ dị n'etiti 7-9 na pH value nke mmiri demineralized dị n'etiti 8-9.5, yabụ mmiri boilers kwesịrị ịgbanwe uru pH.

2, ụkpụrụ bụ isi nke itinye sodium carbonate na mmiri nri booter iji gbanwee uru pH

A na-akpọkarị sodium carbonate soda, soda ash, soda ash, washing alkali, nke a na-akpọ nnu, ọ bụghị alkali, usoro kemịkalụ Na2CO3, n'ọnọdụ nkịtị maka ntụ ọcha ma ọ bụ nnu dị mma. Isi ihe dị mkpa nke itinye sodium carbonate na mmiri nri boiler iji gbanwee uru pH bụ iji sodium carbonate gbazee na mmiri ma bụrụ alkaline, nke nwere ike iwepụ carbon dioxide na mmiri nri acidic ma dozie nchara nke mmiri dị nro acid ma ọ bụ mmiri nnu na boiler na pipeline. Sodium carbonate bụ electrolyte na-adịghị ike, nke a gbazere na mmiri iji mepụta ihe ngwọta nchekwa nke sodium carbonate na sodium bicarbonate, enwere nguzozi electrolytic na ngwọta ahụ, site na oriri nke electrolytic hydroxide, nguzozi ga-aga n'ihu na-aga n'aka nri, yabụ pH dị na mmeghachi omume ahụ anaghị agbanwe nke ukwuu.

Usoro nhazi hydrolysis nke sodium carbonate:

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

Usoro nke abụọ nke hydrolysis nke sodium carbonate:

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

Ọnụọgụ ion a na-akpọ sodium carbonate:

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

Ngụkọta ion nke abụọ nke a na-akpọ sodium carbonate:

HCO3- bicarbonate + mmiri H2O = H2CO3 carbonic acid + OH- hydroxide

3, ụkpụrụ bụ isi nke itinye sodium hydroxide na mmiri ọkụ iji gbanwee uru pH

A na-akpọkwa sodium hydroxide caustic soda, caustic soda, caustic soda, caustic soda, nke na-abụkarị flake ọcha, usoro kemịkalụ NaOH, sodium hydroxide nwere alkaline siri ike, nke na-emebi emebi nke ukwuu.

Usoro ionization maka sodium hydroxide: NaOH=Na++OH-

Ịtinye sodium hydroxide na mmiri nke ihe na-agba ọkụ nwere ike ime ka ihe mkpuchi nchebe dị n'elu ígwè ahụ sie ike, melite uru pH nke mmiri nri nke ihe na-agba ọkụ na mmiri ọkụ, ka o wee dozie ncha nke mmiri dị nro nke acid ma ọ bụ mmiri demineralized na ihe na-agba ọkụ na ihe na-agba ọkụ na ọkpọkọ ahụ, ma chebe akụrụngwa ígwè ahụ pụọ na ncha.

4. A tụnyere uru na ọghọm nke iji sodium carbonate ma ọ bụ sodium hydroxide iji gbanwee uru pH maka mmiri nri boiler.

4.1 Ọsọ nke ịbawanye uru pH site na iji sodium carbonate na sodium hydroxide maka mmiri mmiri ọkụ na oge iji nọgide na-enwe mmetụta ojiji dị iche.

Ọsọ nke itinye sodium carbonate na mmiri ọkụ iji mee ka uru pH dịkwuo elu dị nwayọ karịa nke sodium hydroxide. Ebe ọ bụ na sodium carbonate na-emepụta ihe ngwọta buffer, ọ nwere obere mgbanwe ma kwụsiri ike ma dị mfe ịgbanwe. Agbanyeghị, oke mgbanwe pH dị oke. Mgbe ị na-agbanwe otu uru pH ahụ, ọnụọgụ sodium carbonate ga-adị ukwuu karịa nke sodium hydroxide. A na-anọgide na-enwe mmetụta ojiji ruo ogologo oge, pH nke mmiri adịghịkwa mfe ịda.

Sodium hydroxide bụ isi siri ike na electrolyte siri ike, sodium hydroxide iji gbanwee uru pH nke mgbanwe ahụ buru ibu, sodium hydroxide mgbe mgbakwunye nke mmiri pH dị mfe ịbawanye, gbanwee uru pH ngwa ngwa na kpọmkwem, mana ọ dịkwa mfe ịkwatu enweghị ike itinye oke, ma e jiri ya tụnyere sodium carbonate ịgbakwunye obere ihe nwere ike iru ihe achọrọ pH index, nke ahụ bụ, ọ bụ ezie na sodium hydroxide pH uru mụbara, Otú ọ dị, ọnụọgụ sodium hydroxide agbakwunyere abụghị nnukwu, ya bụ, ikike nke mmiri iji mee ka acid nke otu hydroxide ghara ịba ụba nke ukwuu, pH ga-ada n'oge na-adịghị anya.

4.2 Ihe ọjọọ dị na mgbakwunye oke nke sodium carbonate na sodium hydroxide iji mee ka uru pH dịkwuo elu maka mmiri nri boiler dị iche.

Ịtinye oke sodium carbonate na mmiri ọkụ iji gbanwee uru pH ga-eme ka nnu dị na mmiri ite ahụ na ike ndọda dịkwuo elu; E nwere ọtụtụ ion bicarbonate na mmiri ite ahụ, a na-agbazekwa ion bicarbonate ngwa ngwa ka ọ bụrụ carbon dioxide mgbe a na-ekpo ọkụ. CO2 na-abanye na ihe na-agbanwe okpomọkụ ma na-ejikọta mmiri na steam ahụ. Sodium carbonate enweghị ike ịgbanwe uru pH nke mmiri na-alaghachi steam na steam, kamakwa ọ na-ebelata uru pH nke steam na condensate, na-emebi ihe na-agbanwe okpomọkụ na pipeline condensate. Ihe kpatara ion ígwè dị na steam condensate na-alaghachi mmiri gafere agba ọkọlọtọ odo ma ọ bụ ọbara ọbara.

Ịtinye oke sodium hydroxide na mmiri ọkụ iji gbanwee uru pH ga-eme ka alkali mmiri ite ahụ dị oke elu, mmiri na soda ga-apụtakwa. Ọ dịghị mfe ijikwa oke sodium hydroxide, oke NaOH enweghịkwa ike ịkpata nnukwu alkalinity, mmebi alkali ga-emekwa ka ihe ndị dị na ya ghara ịdị irè. Onye dere ya ahụla tankị plastik e ji iko mee ka ọ sie ike nke jupụtara na patches n'ebe onye ọrụ nọ, nke e mebiri emebi ma gbaa n'ihi ojiji nke sodium hydroxide iji chịkwaa uru pH nke debrine. Sodium hydroxide enweghị ike ịgbanwe uru pH nke mmiri steam na steam condensation, ọ nweghịkwa ike ijikwa mmebi nke ngwa sistemu mmiri steam na steam condensation return na netwọk paịpụ.

4.3 Nchekwa nke sodium carbonate na sodium hydroxide eji eme ihe na mmiri mmiri ọkụ iji bulie uru pH dị iche.

Sodium carbonate dị obere, ọ bụ ihe e ji eme nri, obere mkpali, obere nchara, enwere ike imetụ aka nkịtị, ọ na-adị mkpa iyi uwe aka ogologo oge.

Sodium hydroxide bụ ihe dị ize ndụ, ọ na-emebi emebi, ihe ngwọta ya ma ọ bụ uzuzu a fesara n'akpụkpọ ahụ, karịsịa n'akpụkpọ ahụ mucous, nwere ike ịkpata ọnya dị nro, ma nwee ike ịbanye n'ime anụ ahụ dị omimi. Ọkụ na-ahapụ ọnya. Ọ na-efesa n'anya, ọ bụghị naanị imebi cornea, kamakwa ọ na-emebi anụ ahụ dị omimi nke anya. Ya mere, onye na-arụ ọrụ kwesịrị itinye ude na-anọpụ iche na nke na-adịghị emerụ ahụ n'akpụkpọ ahụ, ọ ga-eyikwa uwe ọrụ, ihe mkpuchi ihu, iko nchebe, uwe aka roba, ákwà mkpuchi roba, akpụkpọ ụkwụ roba dị ogologo na ihe ndị ọzọ maka nchekwa ọrụ iji rụọ ọrụ nke ọma nke nchekwa onwe onye.

E nwere ihe ndị e ji eme ihe na ule ndị na-egosi: A na-eji sodium hydroxide na sodium carbonate eme ihe n'otu oge, ma ọ bụ gwakọta ya, uru ya na mmetụta ya ka mma karịa iji otu pH naanị. Mgbe achọpụtara na uru pH nke mmiri nri boiler dị oke ala, enwere ike itinye ụfọdụ sodium hydroxide nke ọma iji mee ka uru pH dịkwuo ngwa ngwa. Mgbe sodium hydroxide gbazee kpamkpam, enwere ike itinye ụfọdụ sodium carbonate iji bulie carbonate n'ime mmiri. Nke a nwere ike ime ka mbelata nke uru pH nke mmiri nri dị mfe; Ebe ọ bụ na enwere ike itinye sodium carbonate karịa, ikike idobe carbonates n'ime mmiri dị ukwuu, yabụ a na-ejikarị sodium carbonate eme ihe iji nọgide na-enwe uru pH nke mmiri na mmiri ite, naanị mgbe uru pH nke mmiri dị oke ala, onye dere akwụkwọ na-atụ aro ka e jiri sodium hydroxide mee ka uru pH dịkwuo ngwa ngwa, ka ha abụọ wee jikọta ọnụ, ma akụ na ụba ma dị mma.