Amashubhu namashubhu okushintshanisa ukushisa

Incazelo yomkhiqizo

Izishintshi zokushisa zamashubhu nezishubhu zisetshenziswa kakhulu ekukhiqizeni amakhemikhali notshwala. Ngokuyinhloko yakhiwa igobolondo, ishidi leshubhu, ishubhu yokushintshanisa ukushisa, ikhanda, i-baffle nokunye. Izinto ezidingekayo zingenziwa nge-plain carbon steel, ithusi noma insimbi engagqwali. Ngesikhathi sokushintshana kokushisa, uketshezi lungena lusuka epayipini elixhumayo lekhanda, lugeleze epayipini, bese luphuma luphuma epayipini lokuphuma komunye umkhawulo wekhanda, elibizwa ngokuthi uhlangothi lwepayipi; olunye uketshezi lungena lusuka ekuxhumekeni kwegobolondo, lugeleze lusuka komunye umkhawulo wegobolondo. Kuphuma umbhobho owodwa, obizwa ngokuthi isishintshi sokushisa esiseceleni kwegobolondo neshubhu.

Isakhiwo segobolondo ne-tube heat exchanger silula, sihlangene futhi sishibhile, kodwa ukuhlanza ngomshini akukwazi ukwenziwa ngaphandle kweshubhu. I-tube bundle ye-heat exchanger ixhunywe neshidi le-tube, amashidi e-tube ahlanganiswe ngokulandelana emikhawulweni emibili yegobolondo, isembozo esiphezulu sixhunywe nesembozo esiphezulu, futhi ikhava ephezulu kanye negobolondo kunikezwa uketshezi. ipayipi lokungena kanye nepayipi lokuphuma amanzi. Uchungechunge lwama-baffles ancike ku-tube bundle luvamise ukufakwa ngaphandle kwamashubhu egobolondo nesishintshi sokushisa seshubhu. Ngesikhathi esifanayo, ukuxhumana phakathi kweshubhu kanye neshidi le-tube kanye negobolondo kuqinile, futhi kukhona uketshezi olubili olunamazinga okushisa ahlukene ngaphakathi nangaphandle kweshubhu. Ngakho-ke, lapho umehluko wokushisa phakathi kodonga lwe-tube nodonga lwegobolondo lukhulu, ngenxa yokwanda okuhlukile kokushisa kwalokhu okubili, kuzokhiqizwa umehluko omkhulu wokushisa, ukuze amashubhu asonte noma akhululwe epuleti le-tube. igobolondo kanye ne-tube heat exchanger, ngisho nomonakalo wokushisisa ukushisa.

Ukuze unqobe ingcindezi yomehluko wezinga lokushisa, igobolondo nesishintshi sokushisa seshubhu kufanele zibe nedivayisi yesinxephezelo sokuhluka kwezinga lokushisa. Ngokuvamile, lapho umehluko wezinga lokushisa phakathi kodonga lweshubhu nodonga lwegobolondo ungaphezu kuka-50°C, ngenxa yezizathu zokuphepha, ishubhu nesishintshi sokushisa seshubhu kufanele sibe nedivayisi yesinxephezelo sokuhluka kwezinga lokushisa. Kodwa-ke, idivayisi yesinxephezelo (ijoyinti lokunweba) ingasetshenziswa kuphela uma umehluko wezinga lokushisa phakathi kodonga lwegobolondo nodonga lwamapayipi ungaphansi kuka-60 ~ 70 ° C futhi ukucindezela koketshezi ohlangothini lwegobolondo kungaphakeme. Ngokuvamile, lapho ingcindezi yohlangothi lwegobolondo idlula u-0.6Mpa, kuba nzima ukunwetshwa kanye nenkontileka ngenxa yendandatho yesinxephezelo esiwugqinsi. Uma umphumela wesinxephezelo somehluko wokushisa ulahlekile, ezinye izakhiwo kufanele zicatshangelwe.

Ifilimu eshisayo yamanje ye-eddy yegobolondo nesishintshi sokushisa se-tube ikakhulukazi isebenzisa ubuchwepheshe bamanje bokudlulisa ukushisa kwefilimu eshisayo, okwandisa umphumela wokudlulisa ukushisa ngokushintsha isimo sokunyakaza koketshezi. Kufika ku-10000W/m2℃. Ngasikhathi sinye, lesi sakhiwo sibona imisebenzi yokumelana nokugqwala, ukumelana nokushisa okuphezulu, ukumelana nokucindezela okukhulu, kanye ne-anti-scaling. Iziteshi eziwuketshezi zezinye izinhlobo zokushintshana kokushisa zisesimweni sokugeleza kokuqondisa, okwenza ukujikeleza ebusweni bamashubhu okushintshanisa ukushisa, okunciphisa i-coefficient yokudlulisa ukushisa okuguquguqukayo.