Nima uchun neft yorilishi kran itbog alboyli pashshalar kerak?
Masalan, po'lat (masalan, p11, p22) yuqori haroratda (molibdenning barqaror karangasi) ko'tariladi. Bundan tashqari, uning termal o'sishi past koeffitsient termal charchoq xavfini kamaytiradi .
Subkarak quvurlarida plitalardagi qotishuv quvurlariga qanday talablar mavjud?
Bu API 5L / ISO 3183 standartiga javob berishi va tashqi darajadan yuqoriga va tashqarisidagi po'lat navlardan tashqari, pastki qismida joylashgan Quvurlar 3 kishilik korroziya qatlami bilan qoplangan va qurbonlik ander bilan jihozlangan korroziyalarga qarshi kurashish kerak. Bundan tashqari, OVER RESPUL TEST (DWTT) past haroratning pastasi sinishiga yo'l qo'ymaslik uchun tomchi vaznni terish (dest) .
Nima uchun karbamidni sinteid minorasi 316lmo zanglamaydigan po'latdan tashqari quvurlardan foydalanadi?
Karbamid eritma (ammiak karbamatini o'z ichiga olgan) . 316 LMMOD 2% molibel qo'shilib, uglerul korpoziyani kamaytiradi va uglerul korprdy ({3}} Oddiy haroratli siyohda oddiy 316l 1 yildan kam, u o'zgartirilgandan keyin 10 yildan oshishi mumkin . {}} {}}
Kislotali muhitlar uchun qotishma quvurlarni qanday tanlash kerak (H₂S ni o'z ichiga olgan)?
U MR0175 standartiga va past uglerodga rioya qilishi kerak (<0.03%) and low-hardness (HRC22 or less) steel pipes, such as L80-13Cr, are preferred. The risk of sulfide stress cracking (SSC) is evaluated by slow strain rate testing (SSRT). In addition, the inner wall can be lined with plastic or nickel-plated to further block corrosive media.
PTA kimyoviy o'simliklardagi temir quvurlardagi po'latdan yasalgan quvurlarning afzalliklari nimada?
Titanium (such as Gr.2) has far superior corrosion resistance to stainless steel in acetic acid and bromide environments, and is lightweight. The composite pipe with steel can reduce the cost, and the titanium layer only needs to be 1-2mm thick. However, welding requires argon protection to avoid Oksidtsiya . PTA reaktorini isitish pog'onasi ko'pincha ushbu turdagi kompozitsion trubkadan foydalanadi va xizmat hayoti 20 yilga yetishi mumkin . . . .
