Plaub hom plhaub thiab raj kub exchangers

Tsau tubesheet hom: Ib qho yooj yim thiab txhim khu kev qha classic. Tsau tubesheet heat exchangers zoo li "tsim T-tsho" ntawm lub ntiaj teb kev lag luam- yooj yim hauv cov qauv, nqi- zoo, thiab haum rau feem ntau cov ntawv thov. Lawv cov yam ntxwv tseem ceeb yog tias cov tubesheets ntawm ob qhov kawg yog welded thiab tsau rau lub plhaub, ua rau cov khoom siv hluav taws xob sib pauv tsis yog - tshem tau. Qhov kev tsim no ua tau zoo tshwj xeeb hauv cov xwm txheej nrog qhov sib txawv me me (feem ntau tsis tshaj 50 degree), xws li cov dej txias hauv kev lag luam tshuaj. Txawm li cas los xij, nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias vim muaj kev txwv thermal expansion them, qhov kub thiab txias sib txawv tuaj yeem yooj yim ua rau weld to.

Floating Head Heat Exchanger: Ib qho yooj yim daws rau Thermal Expansion

Txhawm rau daws cov teeb meem kev ntxhov siab thermal, lub taub hau lub taub hau hluav taws xob hloov pauv tshiab siv lub raj xa ntawv tsim nrog ib kawg uas muaj peev xwm tsis pub ntab:

Floating End Structure: Cov ntawv raj tuaj yeem txav axially hauv lub plhaub, nqus cov thermal expansion sib txawv.

 

Kev Kho Kom Zoo: Lub raj ntim tuaj yeem muab rho tawm tag nrho, ua kom yooj yim ntxuav cov xov xwm hnyav hnyav.

 

Cov ntawv thov ib txwm: Kev sib pauv cua sov ntawm siab - cov khoom siv roj kub (120-} 300 degree) thiab cov kua dej kub hauv cov roj av refining.

 

Kev txawj tshwj xeeb ntawm U-Tube thiab Stuffed Gland Heat Exchangers

Ob hom kev sib hloov cua sov no yog "cov rog tshwj xeeb" rau kev tuav cov xwm txheej hnyav:

 

U-Tube Thaum tshav kub kub Exchanger: Cov cua kub pauv cov raj yog khoov rau hauv U-puab, nrog rau ob qho tib si xaus rau tib lub raj ntawv, tshem tawm tag nrho cov thermal stress. Qhov no yog tshwj xeeb tshaj yog haum rau nuclear fais fab nroj tsuag chav generators nrog kub sib txawv tshaj 200 degree.

 

Stuffed Gland Heat Exchanger: Cov ntim ntim ntim tau siv rau ntawm qhov kawg ntab, them nyiaj rau kev nthuav dav thaum tso lub plhaub siab - sab siab (txog 10MPa thiab siab dua). Feem ntau siv nyob rau hauv siab - siab roj cua txias hauv ammonia synthesis nroj tsuag.