Anticorrosion Maka Pipeline Mmanụ Ala

Ọkụ nke pipeline mmanụ bụ n'ozuzu ígwè tubes, nke a na-ejikọta ya site na ịgbado ọkụ na flanges na ngwaọrụ ndị ọzọ na-ejikọta ya na pipeline dị anya, na valves na-eji maka mmeghe na imechi njikwa na nhazi usoro.Pipeline mmanụ na-enwekarị ụgbọ njem isothermal, njem na-ekpo ọkụ na ụgbọ njem usoro na teknụzụ njem ndị ọzọ.Corrosion nke pipeline na otu esi egbochi corrosion bụ otu n'ime njikọ dị mkpa nke nhazi pipeline.N'ihi na mmanụ ahụ nwere sọlfọ na acid, na pipeline nke ifufe na mmiri ozuzo na-ekpuchi n'èzí, ọ dị mfe imebi pipeline.Pipeline corrosion tumadi nwere ndị a ụdị: ígwè oxygen corrosion kpatara ụkpụrụ nke galvanic cell;Mmebi evolushọn hydrogen n'ihi mmiri ozuzo acid nke sulfide acid dị oke egwu (sulfur dioxide na hydrogen sulfide) kpatara n'elu pipeline;Carbon dioxide acid corrosion kpatara site na mmiri ozuzo;Nrụrụ nje nke nje bacteria na-akpata nke nwere ike metabolize sulfate n'elu pipeline na corrosion nke mmiri dị na pipeline kpatara.
Ọkpụkpọ a na-eji maka pipeline mmanụ bụ ọkpọkọ carbon steel, nke enwere ike kewaa ya na ọkpọkọ igwe anaghị agba nchara na ọkpọkọ nchara dị ka usoro nrụpụta ya si dị.Ọkpụkpụ ígwè na-enweghị ntụpọ nwere njirimara nke ike dị elu, ọtụtụ nkọwa, ya mere ọ dabara maka ngwaahịa mmanụ na-emebi emebi ma ọ bụ ọnọdụ okpomọkụ dị elu.A na-ekewa ọkpọkọ nchara na-enweghị nkebi n'ime ụdị abụọ a kpụrụ akpụ na-ekpo ọkụ na oyi.N'ihi na usoro ịbịaru oyi ga-eme ka ihe siri ike sie ike, ọ dịkwa mkpa ka ịme ọgwụgwọ okpomọkụ kwekọrọ na kpọmkwem ojiji nke ọkpọkọ.Enwere ike kewaa ọkpọkọ ígwè welded ụzọ abụọ: igwe nchara nchara na ọkpọkọ welded.N'ihi na usoro e ji mara carbon ígwè ọkpọkọ, ụdị ígwè ọkpọkọ dị mfe ịghọ kenkuwa na ala okpomọkụ, n'ihi ya, ọ bụ tumadi kwesịrị ekwesị maka nkịtị okpomọkụ pipeline, ojiji okpomọkụ nke ọkpọkọ ekwesịghị gafere 300 degrees Celsius, n'ozuzu na-ekwu okwu. Okpomọkụ ojiji nke ọkpọkọ carbon ígwè nkịtị dị n'etiti 0 na 300 degrees Celsius.Ọ bụrụ na ojiji nke elu mma carbon ígwè ọkpọkọ, okpomọkụ nso na ntụrụndụ nke - 40 ka 450 degrees Celsius.