1.Mprovement nke n'ibu peeling usoro nke3PE mgbochi corrosion mkpuchi
① Chọta ma ọ bụ mepụta akụrụngwa kpo oku ka mma iji dochie ọkụ igbutu gas. Ngwa ndị na-ekpo ọkụ kwesịrị ijide n'aka na ebe ọkụ ọkụ na-agba agba buru ibu iji kpoo akụkụ mkpuchi ahụ dum ka a kpochapụ ya n'otu oge, ma n'otu oge ahụ hụ na ọkụ ọkụ dị elu karịa 200 ° C.
② Chọta ma ọ bụ mepụta ngwá ọrụ dị mma karịa shọvelụ dị larịị ma ọ bụ hama aka. Ngwá ọrụ peeling kwesịrị inwe ike nweta nkwado dị mma na elu elu nke pipeline, gbalịa ikpochapụ ihe mkpuchi na-ekpo ọkụ na-ekpo ọkụ n'elu elu nke pipeline n'otu oge, ma hụ na mkpuchi mgbochi na-ejikọta ya na peeling. ngwá ọrụ dị mfe ihicha.

2.Electrochemical peeling nke mkpuchi mgbochi corrosion 3PE
Injinia imewe na-ewu mmadụ nwere ike nyochaa ihe na-akpata mpụga corrosion nke gas e liri pipelines na ntụpọ nke 3PE mgbochi corrosion mkpuchi, na-achọta ụzọ ọhụrụ ibibi na bee pụọ mgbochi corrosion mkpuchi.
(1) Ihe na-akpata mpụga corrosion nke pipelines na nyocha nke 3PE mgbochi corrosion mkpuchi ntụpọ.
① Corrosion dị ugbu a nke pipeline e liri
Stray current bụ ihe na-emepụta ugbu a site na mmetụta nke ọnọdụ mpụga, a na-atụkarịkwa ike ya site na usoro nyocha polarization [1]. Stray current nwere nnukwu corrosion ike na ihe ize ndụ, ụdị dịgasị iche iche na enweghị usoro siri ike, karịsịa ịdị adị nke ọzọ ugbu a nwere ike ime ka depolarization nke elu electrode na-abawanye corrosion pipeline. Ntinye aka AC nwere ike mee ka ịka nká nke oyi akwa mgbochi corrosion dị ngwa ngwa, mee ka oyi akwa mgbochi na-apụ apụ, na-egbochi ọrụ nkịtị nke usoro nchebe cathodic, belata arụmọrụ nke anode nke àjà ugbu a, ma mee ka pipeline ghara inweta. nchebe mgbochi corrosion dị irè.
② Ala gburugburu corrosion nke pipeline e liri

Isi mmetụta nke ala gbara ya gburugburu na corrosion nke pipeline gas e liri bụ: a. Mmetụta nke batrị ndị mbụ. Selụ Galvanic kpụrụ site na inhomogeneity electrochemical nke ọla na mgbasa ozi bụ ihe dị mkpa na-akpata corrosion na pipeline e liri. b. Mmetụta nke ọdịnaya mmiri. Mmiri dị n'ime mmiri nwere mmetụta dị ukwuu na mmebi nke pipeline gas, na mmiri dị n'ime ala bụ ọnọdụ dị mkpa maka ionization na mgbasa nke electrolyte ala. c. Mmetụta nke resistivity. Ka obere ala na-eguzogide ya, otú ahụ ka ọ na-esiwanye ike na ọkpọkọ ígwè. d. Mmetụta nke acidity. Ọkụ na-adị mfe imebi na ala acidic. Mgbe ala nwere ọtụtụ acid organic, ọbụlagodi uru pH dị nso na-anọpụ iche, ọ na-emebi emebi. e. Mmetụta nke nnu. Nnu dị n'ime ala ọ bụghị nanị na-ekere òkè na usoro nhazi nke corrosion nke ala, kamakwa na-ekere òkè na mmeghachi omume kemịkal. Batrị dị iche iche nke nnu na-emepụta site na kọntaktị dị n'etiti pipeline gas na ala nwere ntinye nnu dị iche iche na-akpata corrosion nke pipeline na ọnọdụ nke nwere nnukwu nnu nnu ma na-eme ka mmebi nke mpaghara dịkwuo njọ. f. Mmetụta nke porosity. Nnukwu ala porosity na-enyere aka ịbanye na ikuku oxygen na ichekwa mmiri n'ime ala, ma na-akwalite ọnọdụ nke corrosion.

③ Ntụle adịghị mma nke mkpuchi mkpuchi corrosion 3PE [5]
Otu ihe dị mkpa na-emetụta adhesion n'etiti 3PE mgbochi-corrosion mkpuchi na ọkpọkọ ígwè bụ n'elu ọgwụgwọ àgwà na n'elu mmetọ nke ígwè ọkpọkọ. a. N'elu bụ mmiri. Elu nke ọkpọkọ ígwè mgbe derusting na-emetọ ya na mmiri na ájá, nke na-emekarị ka nchara na-ese n'elu mmiri, nke ga-emetụta njikọ dị n'etiti ntụ ntụ epoxy sintered na elu nke ọkpọkọ ígwè. b. Uzuzu mmeru. Uzuzu akọrọ nke dị n'ikuku na-adaba ozugbo n'elu ọkpọkọ ígwè e wepụrụ nchara, ma ọ bụ daa n'elu ngwá ọrụ ebufe ma mebie n'elu ọkpọ ígwè ahụ na-ezoghị ezo, nke nwekwara ike ime ka mbelata nke ntanye. c. Pores na afụ. Oghere mmiri nke mmiri na-akpata na-adị ebe niile n'elu na n'ime oyi akwa HDPE, na nha na nkesa na-adịchaghị otu, nke na-emetụta adhesion.
(2) Ndụmọdụ maka iwepụ ihe mkpuchi corrosion 3PE nke electrochemical.
Site na nyocha nke ihe ndị na-akpata nrụrụ mpụga nke gas na-eli ozu pipelines na ntụpọ adhesion nke mkpuchi mgbochi corrosion 3PE, mmepe nke ngwaọrụ dabere na ụzọ electrochemical bụ ụzọ dị mma iji dozie nsogbu dị ugbu a ngwa ngwa, ọ nweghịkwa ngwaọrụ dị otú ahụ. n'ahịa ugbu a.
Na ndabere nke na-atụle n'ụzọ zuru ezu Njirimara anụ ahụ nke 3PE mgbochi-corrosion mkpuchi, site n'ịmụ na corrosion usoro nke ala na site na nnwale, a corrosion usoro na a corrosion ọnụego nnọọ ukwuu karịa nke ala na-emepụta. Jiri mmeghachi omume kemịkalụ na-agafeghị oke mepụta ụfọdụ ọnọdụ mpụga, nke mere na mkpuchi mgbochi corrosion 3PE na-emeghachi omume na reagents kemịkalụ electrochemically, si otú a na-ebibi adhesion ya na pipeline ma ọ bụ na-agbari mkpuchi mgbochi corrosion ozugbo.

3.Miniaturization nke ugbu a nnukwu-ọnụ ọgụgụ strippers

PetroChina West-East Gas Pipeline Company ewepụtala akụrụngwa akụrụngwa dị mkpa maka ndozi mberede nke mmanụ na ikuku gas ogologo pipeline - nnukwu dayameta pipeline mpụga mgbochi corrosion oyi akwa igwe. Ngwá ọrụ ahụ na-edozi nsogbu ahụ na oyi akwa mgbochi corrosion siri ike ịpụpụ na nrụzi mberede nke nnukwu dayameta mmanụ na gas pipeline, nke na-emetụta arụmọrụ nke nrụzi mberede. Ụdị crawler-ụdị nnukwu dayameta pipeline mpụga mgbochi corrosion oyi akwa igwe na-eji moto dị ka ike ịwepụ ihe iji kwọọ ahịhịa rola ka ọ tụgharịa iji wepụ oyi akwa mgbochi corrosion nke a fụchiri na mgbidi dị n'elu, wee gaa n'akụkụ okirikiri n'elu. nke pipeline's mgbochi corrosion oyi akwa iji mechaa pipeline mgbochi corrosion oyi akwa peeling. Ọrụ ịgbado ọkụ na-enye ọnọdụ dị mma. Ọ bụrụ na akụrụngwa a buru ibu dị ntakịrị, dabara adaba maka pipeline obere dayameta dị n'èzí ma gbasaa, ọ ga-enweta uru akụ na ụba na mmekọrịta ọha na eze ka mma maka nrụpụta ihe mberede gas mepere emepe. Otu esi ebelata ụdị crawler-ụdị nnukwu dayameta pipeline mpụta mgbochi corrosion oyi akwa stripper bụ ezigbo ntụzịaka nyocha.