Spiral heat exchanger hi a compact structure leh heat transfer tha tak avang hian chemical, pharmaceutical, food processing, leh energy sector-ah te hman a ni nasa hle. An core performance leh service life hi a tam zawk chu material thlan danah a innghat a ni. Operating condition hrang hrangah chuan corrosion resistance, strength, leh cost{2}}effectiveness a awm theih nan tailored materials a ngai a ni.
Carbon steel leh low-alloy steel te hi spiral heat exchanger siamna atana hmanraw pawimawh tak a ni a, non-corrosive emaw mildly corrosive media (tui-to-water heat exchange ang chi) atan a tha hle. Heng thilte hian man tlawm leh mechanical strength sang tak an pe a, mahse an service life rei zawk nan surface treatment (galvanizing emaw coating ang chi) a ngai thung. High-temperature leh high-pressure application-ah chuan low-alloy steel (Q345R ang chi) hian molybdenum leh chromium ang chi element dah belh a nih avangin creep leh oxidation resistance a ti tha thei a ni.
Stainless steel (304 leh 316L ang chi) hi stainless steel spiral heat exchanger tan chuan mainstream choice a ni a, a bik takin chloride ion, acid leh base awmna media, emaw sanitary condition. 316L tan a tha hle a, molybdenum a awm avangin pitting leh crevice corrosion laka a resistance tha zawk a pe a, damdawi siamna leh industry-ah pawh hman a ni tlangpui. Duplex stainless steel (2205 ang chi) te hian chakna sang tak leh chloride stress corrosion laka invenna an inzawm khawm a, hei hian chloride ion awmna high{5}}temperature fluid atan a tha hle.
Nickel-based alloy (Hastelloy C276 leh Inconel 625 ang chi) hi boruak chhe nasa tak, acid chak tak (sulfuric acid leh hydrochloric acid), high-temperature leh high-pressure hydrogen, emaw desalination system-a hman tur atana siam a ni. A man to hle laiin, heng thilte hian intergranular corrosion leh high-temperature oxidation an do thei a, petrochemicals leh environment humhalhna ang chi high-end application-ah te hman a ni fo bawk.
Tuipui tui heat exchanger atan chuan titanium hi duhthlan tur tha tak a ni. Chloride ion corrosion resistance tha tak leh design rit lo tak a nih avangin lawng leh tuipui kama power plant-ah te hman a ni nasa hle. Chubakah, non-metallic materials graphite leh ceramics te pawh hi corrosion-resistant sang tak an nih laiin, an brittle bawk a, chuvangin small-scale, specialized application-ah chauh an innghat a ni.
Material thlan nan hian medium characteristics, temperature, pressure, leh cost te uluk taka ngaihtuah a ngai a ni. Spiral heat exchanger designer-te chuan hun rei tak leh nghet taka an hman theih nan corrosion testing leh engineering experience hmangin performance leh economy inthlauhna an neih a ngai a ni.
