Kuenzanisa zvakanakira uye kuipa kwekushandisa sodium carbonate kana sodium hydroxide kugadzirisa pH kukosha kweiyo boiler feed mvura.

1, boiler yekudyisa mvura kugadzirisa iyo pH kukosha kwechikonzero

Mazuva ano, mabhailer mazhinji muChina anoshandisa reverse osmosis demineralized mvura kana sodium ion resin exchange yakapfava mvura, reverse osmosis demineralized mvura kana sodium ion resin exchange yakapfava mvura pH kukosha kwakanyanya kuderera uye acidic, reverse osmosis demineralized mvura pH kukosha kunowanzo 5-6, sodium ion resin inotsinhanisa yakapfavisa mvura pH kukosha kunowanzo 5.5-7.5, kuitira kugadzirisa kupera kwemvura ine acidic kune maboilers nemapombi, Zvinoenderana nezvinodiwa zveNational standard BG/T1576-2008, iyo pH kukosha kweiyo bhailer yeindasitiri. mvura iri pakati pe7-9 uye pH kukosha kwemvura yakasvibiswa iri pakati pe8-9.5, saka iyo boiler yemvura inopihwa inoda kugadzirisa pH kukosha.

2, musimboti wekutanga wekuwedzera sodium carbonate kune boiler yekudyisa mvura kugadzirisa iyo pH kukosha

Sodium carbonate inowanzozivikanwa sesoda, soda ash, soda ash, washing alkali, inonzi munyu, kwete alkali, kemikari formula Na2CO3, pasi pemamiriro ezvinhu ehupfu chena kana munyu wakanaka.Nheyo yekutanga yekuwedzera sodium carbonate kune iyo boiler yekudyisa mvura kugadzirisa iyo pH kukosha ndeye kushandisa sodium carbonate kunyungudika mumvura uye kuve alkaline, iyo inogona kudzikamisa kabhoni dhaimoni mumvura ine acidic feed mvura uye kugadzirisa kuora kweasidhi yakapfavisa mvura kana munyu. mvura pane boiler uye pombi.Sodium carbonate ielectrolyte isina simba, yakanyungudutswa mumvura kuita buffer solution ye sodium carbonate uye sodium bicarbonate, pane electrolytic balance mumhinduro, nekudyiwa kwe electrolytic hydroxide, chiyero chicharamba chichienda kurudyi, saka. iyo pH iripo mukuita haichinje zvakanyanya.

Sodium carbonate primary hydrolysis process:

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

Sodium carbonate yechipiri hydrolysis maitiro:

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

Sodium carbonate primary hydrolyzed ion equation:

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

Sodium carbonate yechipiri hydrolyzed ion equation:

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

3, iyo yakakosha musimboti wekuwedzera sodium hydroxide kune iyo boiler mvura kugadzirisa iyo pH kukosha

Sodium hydroxide inonziwo caustic soda, caustic soda, caustic soda, caustic soda, kazhinji chena flake, kemikari formula NaOH, sodium hydroxide ine alkaline yakasimba, inoparadza zvakanyanya.

Ionization equation ye sodium hydroxide: NaOH=Na++OH-

Kuwedzera sodium hydroxide kumvura yebhailer kunogona kudzikamisa firimu rinodzivirira pamusoro pesimbi, kunatsiridza pH kukosha kweiyo boiler yekudyisa mvura nemvura yevira, kuitira kugadzirisa kuparara kweasidhi yakapfavisa mvura kana demineralized mvura pa. iyo bhailer uye pombi, uye chengetedza midziyo yesimbi kubva mukuora.

4. Zvakanakira nekuipira kwekushandisa sodium carbonate kana sodium hydroxide kugadzirisa pH kukosha kweboiler feed yemvura inofananidzwa.

4.1 Iko kumhanya kwekusimudza pH kukosha ne sodium carbonate uye sodium hydroxide ye boiler feed mvura uye nguva yekuchengetedza mashandisiro ekushandisa zvakasiyana.

Iko kumhanya kwekuwedzera sodium carbonate kune iyo boiler yemvura inopihwa kuwedzera pH kukosha inononoka kupfuura iyo yesodium hydroxide.Nekuti sodium carbonate inogadzira mhinduro yebuffer, ine kushanduka kudiki uye haina kugadzikana uye nyore kugadzirisa.Nekudaro, huwandu hwekugadziriswa kwepH hushoma.Paunenge uchigadzirisa iyo yakafanana pH kukosha, huwandu hwesodium carbonate huchave hwakakura kupfuura hwesodium hydroxide.Iko kushandiswa kwekushandisa kunochengetwa kwenguva yakareba, uye pH yemvura haisi nyore kudonha.

Sodium hydroxide isimbi yakasimba uye yakasimba electrolyte, sodium hydroxide kugadzirisa pH kukosha kwekushanduka kwakakura, sodium hydroxide mushure mekuwedzera kwemvura pH iri nyore kuwedzera, gadzirisa pH kukosha nekukurumidza uye zvakananga, asiwo nyore kupidigura haagone kuisa yakawandisa, kana ichienzaniswa nesodium carbonate kuwedzera zvishoma inogona kusvika pH index zvinodiwa, kureva, kunyange sodium hydroxide pH kukosha kwakawedzera, Zvisinei, huwandu hwesodium hydroxide yakawedzerwa haisi huru, kureva, kugona kwemvura kuita neutralize acid yeboka rehydroxide haina kuwedzera zvakanyanya, iyo pH ichakurumidza kudonha.

4.2 Kukuvadza kunokonzerwa nekuwedzeredza kuwedzera kwesodium carbonate uye sodium hydroxide kuwedzera pH kukosha kweiyo boiler yemvura yekudyisa kwakasiyana.

Kuwedzera yakawandisa sodium carbonate kune iyo boiler mvura kugadzirisa iyo pH kukosha inowedzera munyu wemvura yepoto uye conductivity;Mumvura yepoto mune bicarbonate ions akawanda, uye maioni ebicarbonate anoora nyore kuita kabhoni dhaokisaidhi kana yapiswa.CO2 inopinda mumoto wekupisa uye inogadzirisa mvura nemhepo.Sodium carbonate haingogone chete kugadzirisa iyo pH kukosha kweutsi uye mhepo inodzosa condensate mvura, asi zvakare inoderedza iyo pH kukosha kwehutsi uye condensate, kukanganisa kupisa kunopisa uye condensate pombi.Chikonzero nei ayoni esimbi muutsi condensate inodzosa mvura inopfuura iyo yakajairwa ruvara yeyero kana dzvuku.

Kuwedzera yakawandisa sodium hydroxide kumvura yemuchoto kugadzirisa pH kukosha kuchaita kuti alkali yemvura yepoto iwedzere, uye mvura nesoda zvichaonekwa.Huwandu hwesodium hydroxide haisi nyore kudzora, uye yakawandisa yemahara NaOH inokonzeresa yakakura hukama alkalinity, uye alkali embrittlement ichakonzerawo ngura kumidziyo.Munyori akaona girazi refiber rakasimbisa tangi remarara repurasitiki rizere nezvigamba panzvimbo yemushandisi, iyo yaive yakasvibiswa uye yakapwanyika nekuda kwekushandiswa kwesodium hydroxide kudzora pH kukosha kwemarara.Sodium hydroxide haigone kugadzirisa pH kukosha kweutsi uye mhepo inodzoreredza mvura inodzosa, uye haigone kudzora kukora kwechitsinga uye chiutsi condensation kudzorera mvura system michina uye pombi network.

4.3 Kuchengetedzeka kwesodium carbonate uye sodium hydroxide inoshandiswa mu boiler feed mvura kukwidza pH kukosha kwakasiyana

Sodium carbonate ine hunyoro, ndeyekudya giredhi zvinhu, diki kukurudzira, kushoma corrosion, yakajairika inogona kubatwa neruoko, yenguva refu inoda kupfeka magurovhosi.

Sodium hydroxide chinhu chine njodzi, chinoparadza, uye mhinduro yayo kana guruva rinopfachukira paganda, kunyanya pa mucous membrane, inogona kuburitsa scabs yakapfava, uye inogona kupinda mukati mematishu akadzika.Kutsva kunosiya vanga.Kuputira muziso, kwete kungokuvadza cornea, asiwo kukuvadza nyama yakadzika yeziso.Naizvozvo, mushandisi anofanirwa kuzora mafuta asina kwaakarerekera uye ane hydrophobic paganda, uye anofanira kupfeka zvipfeko zvebasa, masiki, magirazi ekudzivirira, magirovhosi erabha, maapuroni erabha, bhutsu refu dzerabha uye zvimwe zvekuchengetedza basa kuita basa rakanaka rekuzvidzivirira.

Pane mashandisiro uye ekuyedza makesi anoratidza: Sodium hydroxide uye sodium carbonate inoshandiswa zvakachinjana, kana kusanganiswa, hupfumi hwayo nemhedzisiro zviri nani pane kushandisa imwe pH regulator chete.Kana iyo pH kukosha kweiyo boiler yekudyisa mvura ikawanikwa yakadzikira, imwe sodium hydroxide inogona kuwedzerwa zvakafanira kukurumidza kuwedzera pH kukosha.Mushure mokunge sodium hydroxide yanyungudutswa zvachose, imwe sodium carbonate inogona kuwedzerwa kusimudza carbonate mumvura.Izvi zvinogona kurerutsa kuderera kwepH kukosha kwemvura yekudyisa;Nekuda kwekuti huwandu hwe sodium carbonate hunogona kuiswa mune zvakawanda, kugona kuchengetedza carbonates mumvura kunowedzera, saka kazhinji sodium carbonate inogona kushandiswa kuchengetedza pH kukosha kwemvura uye mvura yepoto, chete kana iyo pH kukosha kwe. iyo mvura yakanyanya kuderera, munyori anokurudzira kushandiswa kwesodium hydroxide kuti ikurumidze kuwedzera pH kukosha, kuitira kuti iyo miviri inosanganiswa, zvose zvehupfumi uye zvakanaka.