1. Ọnụ ọgụgụ nke ihicha passivation: pipelines, ntinye, valves, wdg bụ nke mmiri mmiri dị ọcha nke ụlọ ọrụ anyị rụrụ.
2. Mmiri chọrọ: Mmiri a na-eji eme ihe niile na-arụ ọrụ usoro a bụ mmiri mmiri na-ekpo ọkụ, na Party A chọrọ iji kwadoo ọrụ mmepụta mmiri.
3. Nchekwa nchekwa: A na-anakwere ihe nchekwa nchekwa ndị a n'ime mmiri mmiri pickling:
(1) Onye na-arụ ọrụ na-eyi ihe mkpuchi gas dị ọcha, nke doro anya, uwe anaghị egbochi acid, na uwe aka.
(2) Ọrụ niile bụ ịgbanye mmiri na akpa ahụ, wee tinye kemịkalụ, ọ bụghị n'ụzọ ọzọ, wee kpalite mgbe ị na-agbakwunye.
(3) A ga-ahapụrịrị mmiri nhicha na ngafe mmiri mgbe ọ na-anọpụ iche, a ga-ewepụkwa ihe mgbapụta ahụ site na nsị nsị nke ụlọ mmepụta mmiri iji rite uru na gburugburu ebe obibi.

Atụmatụ nhicha
1. Tupu ihicha
(1) Formula: Mmiri na-ekpo ọkụ n'ime ụlọ.
(2) Usoro ọrụ: Jiri mgbapụta mmiri na-ekesa iji mee ka nrụgide dị na 2 / 3bar wee gbasaa na mgbapụta mmiri. Mgbe nkeji iri na ise gachara, mepee valvụ mmiri na-agbapụta ma wepụ ya mgbe ị na-ekesa.
(3) Okpomọkụ: okpomọkụ ụlọ
(4) Oge: nkeji iri na ise
(5) Ghichaa mmiri deionized maka ihicha.

2. Nhicha akwa
(1) Usoro: Kwadebe reagent kemịkalụ dị ọcha nke sodium hydrochloride, gbakwunye mmiri ọkụ (okpomọkụ adịghị ala karịa 70 ℃) iji mee 1% (ụda olu) lye.
(2) Usoro ọrụ: Jiri nfuli gbasaa ihe na-erughị nkeji 30, wee hapụ ya.
(3) Okpomọkụ: 70 ℃
(4) Oge: nkeji iri atọ
(5) Wepu ihe ngwọta ihicha.

3. Jiri mmiri deionized sachaa:
(1) Formula: Mmiri na-ekpo ọkụ n'ime ụlọ.
(2) Usoro ọrụ: Jiri mgbapụta mmiri na-ekesa iji mee ka nrụgide dị na 2 / 3bar na-ekesa na mgbapụta mmiri. Mgbe nkeji 30 gachara, mepee valvụ mmiri na-agbapụta ma wepụ ya mgbe ị na-ekesa.
(3) Okpomọkụ: okpomọkụ ụlọ
(4) Oge: nkeji iri na ise
(5) Ghichaa mmiri deionized maka ihicha.

Atụmatụ ngafe
1. Acid passivation
(1) Usoro: Jiri mmiri deionized na kemịkal dị ọcha nitric acid iji dozie ngwọta acid 8%.
(2) Usoro ọrụ: Debe mgbapụta mmiri na-ekesa na nrụgide 2/3bar ma gbasaa maka 60min. Mgbe nkeji 60 gachara, gbakwunye sodium hydroxide kwesịrị ekwesị ruo mgbe uru PH ruru 7, mepee valvụ drain ahụ, ma wepụ ya mgbe ị na-ekesa.
(3) Okpomọkụ: 49℃-52℃
(4) Oge: nkeji iri isii
(5) Hapụ ngwọta passivation.

2. Ntucha mmiri dị ọcha
(1) Formula: Mmiri na-ekpo ọkụ n'ime ụlọ.
(2) Usoro ọrụ: Jiri mgbapụta mmiri na-ekesa na-eme ka nrụgide dị na 2 / 3bar na-ekesa na mmiri mgbapụta mmiri, mepee valve drain mgbe nkeji 5 gasịrị, ma wepụ ya mgbe ị na-ekesa.
(3) Okpomọkụ: okpomọkụ ụlọ
(4) Oge: nkeji ise
(5) Ghichaa mmiri deionized maka ihicha.

3. Wepu mmiri dị ọcha
(1) Formula: Mmiri na-ekpo ọkụ n'ime ụlọ.
(2) Usoro ọrụ: Debe mgbapụta mmiri na-ekesa na nrụgide 2 / 3bar ma na-ekesa ya na mgbapụta mmiri ruo mgbe pH na-emepụta ihe na-anọpụ iche.
(3) Okpomọkụ: okpomọkụ ụlọ
(4) Oge: ọ dịghị ihe na-erughị nkeji iri atọ
(5) Ghichaa mmiri deionized maka ihicha.

Mara: Mgbe ị na-ehicha ma na-agafe, a ga-ewepụrịrị ihe nzacha nke nzacha nkenke ka ọ ghara imebi ihe nzacha.