I-ASME SA179 ngumgangatho wepayipi yentsimbi engenamthungo yesitshintshi sobushushu esenziwe yi-American Society of Mechanical Engineers (ASME), echaza izalathisi eziphambili ezifana nenkqubo yokuvelisa, ukwakheka kweekhemikhali, iimpawu zoomatshini kunye nokunyamezelana komlinganiselo wepayipi. Lo mgangatho uqinisekisa ukuba ipayipi yentsimbi inokumelana okugqwesileyo koxinzelelo, ukuqhuba ubushushu kunye nokumelana nokugqwala kwii-heat exchangers ezahlukeneyo, kwaye ifanelekile kwiimeko ezinzima zokusebenza kwiikhemikhali, umbane, ukutya kunye neminye imimandla.
Iingenelo eziphambili zenkqubo yokuzoba ebandayo
Umbhobho oqhelekileyo waseMelika otsalwa ngokubandayo ongenamthungo usebenzisa iteknoloji yokuzoba ubushushu begumbi kwaye wenziwe ngokuchanekileyo ziimold. Uneempawu ezilandelayo:
Ubungakanani obuchanekileyo: ukunyamezelana okungqongqo kobubanzi bangaphandle (okufana no-± 0.10mm), ubukhulu bodonga obufanayo, obufanelekileyo kwisakhiwo sokutshintsha ubushushu esitywinwayo kakhulu.
Ukuqinisa iipropati zoomatshini: ukuguqulwa kobushushu kwenza iinkozo zijongeke, kuphucula amandla okuxinana (≥325MPa) kunye nobunzima, ngelixa kugcinwa ukuqina okuhle.
Umgangatho ogqwesileyo womphezulu: udonga lwangaphakathi olugudileyo (uburhabaxa beRa≤0.8μm), lunciphisa ukumelana nolwelo, kwaye luphucula ukusebenza kakuhle kokutshintshiselana kobushushu.
Iinkcukacha zobungakanani besitshixo
I-ASME SA179 igubungela uluhlu lweenkcazo ezahlukeneyo ukuhlangabezana neemfuno zeemeko ezahlukeneyo zokutshintshiselana kobushushu:
Uluhlu lobubanzi obungaphandle (mm) Uluhlu lobukhulu bodonga (mm) Iimeko eziqhelekileyo zokusetyenziswa
12.7~25.4 1.24~2.11 Isitshintshi sobushushu sepleyiti encinci
25.4~38.1 2.11~3.81 Isixhobo sokutshintsha ubushushu segobolondo lekhemikhali kunye netyhubhu
I-condenser yoxinzelelo oluphezulu yesikhululo samandla 38.1~50.8 3.81~5.59
Amatyala ezicelo zoshishino
1. Ishishini leekhemikhali
Ukucocwa kwepetroliyam: Iibhulukhwe zeetyhubhu zokutshintshiselana kobushushu ezisetyenziswa kwi-hydrogenation reactors, ezimelana nokugqwala kwe-hydrogen sulfide (uxinzelelo lwe-H₂S ≤50ppm).
Ukuveliswa kwe-asidi ye-sulfuric: I-SO₂ gas epholisiweyo enobushushu obuphezulu (≤450℃), i-anti-corrosion coating iyafuneka xa usebenzisa i-carbon steel.
2. Amandla ombane
Iipayipi zeCondenser: Kwizikhululo zamandla ezishushu, iipayipi zentsimbi ze-SA179 zimelana noxinzelelo lomphunga lwe-0.1MPa, kunye nokuqhuba kobushushu kwe-50W/(m·K), kunye nokunyuka kokusebenza kokuqina kwe-15%.