Indlela yokukhetha imodeli efanelekileyo yombhobho womphunga
Ingxaki eqhelekileyo ngoku kukukhetha umbhobho wokuthutha umphunga ngokobubanzi bojongano lwezixhobo ezidityanisiweyo.Nangona kunjalo, izinto ezibalulekileyo ezinjengoxinzelelo lokuhambisa kunye nokuhanjiswa komgangatho womphunga zihlala zingahoywa.
Ukukhethwa kwemibhobho ye-steam kufuneka kuhambe ngezibalo zobugcisa kunye nezoqoqosho.Amava kaNobeth abonise ukuba ukukhetha ngokungafanelekanga imibhobho yomphunga kunokukhokelela kwiingxaki ezininzi.
Ukuba ukhetho lwemibhobho lukhulu kakhulu, ngoko:
Ukunyuka kweendleko zemibhobho, ukonyusa ukugquma kwemibhobho, ukonyusa idiameter yevalvu, ukonyusa inkxaso yemibhobho, ukwandisa umthamo, njl.njl.
Iindleko zokufakela ezongezelelekileyo kunye nexesha lokwakha
Ukunyuka kokwakheka kwe-condensate
Ukonyuka kwamanzi adityanisiweyo kuya kubangela ukuhla komgangatho womphunga kunye nokuncipha kobuchule bokuhambisa ubushushu
· Ukulahleka kobushushu ngakumbi
Ngokomzekelo, ukusebenzisa umbhobho we-steam we-50mm unokuthutha umphunga owaneleyo, ukuba usebenzisa umbhobho we-80mm, iindleko ziya kunyuka nge-14%.Ilahleko yobushushu bombhobho wokugquma we-80mm yi-11% ngaphezu kwaleyo yombhobho wokugquma oyi-50mm.Ilahleko yobushushu be-80mm yombhobho ongafakwanga i-insulated yi-50% ngaphezu kwaleyo ye-50mm yombhobho ongafakwanga.
Ukuba ukhetho lombhobho luncinci kakhulu, ngoko:
·Izinga eliphezulu lokuhamba komphunga livelisa ukuhla koxinzelelo oluphezulu lomphunga, kwaye xa indawo yokusetyenziswa komphunga ifikelelwe, uxinzelelo alwanelanga, nto leyo ifuna uxinzelelo oluphezulu lwebhoyila.Uxinzelelo olungonelanga lomphunga ngumba obalulekileyo kwizicelo ezifana nokuvala umphunga.
Umphunga ongonelanga kwindawo yomphunga, umtshintshi wobushushu awunamahluko owaneleyo wokutshintsha ubushushu, kwaye imveliso yobushushu iyancipha
·Isantya sokuhamba komphunga siyenyuka, kulula ukuvelisa i-scour nesando samanzi
Umgangatho wombhobho unokukhethwa ngenye yeendlela ezimbini ezilandelayo.:
·Indlela yesantya
·Indlela yokwehlisa uxinzelelo
Kungakhathaliseki ukuba yeyiphi indlela esetyenziselwa ukulinganisa, enye indlela kufuneka isetyenziswe ukujonga iingcebiso zamanzi ukuqinisekisa ukuba imida ayigqithiswanga.
Ubungakanani bokuhamba busekelwe ekuhambeni kombhobho ulingana nemveliso yendawo enqamlezileyo yombhobho kunye nokuhamba (khumbula umthamo othile uyahluka ngoxinzelelo).
Ukuba siyazi ukuhamba kobunzima kunye noxinzelelo lwe-steam, sinokubala ngokulula ukuhamba kwevolumu (m3 / s) yombhobho.Ukuba sigqiba isantya esamkelekileyo sokuhamba (m / s) kwaye siyazi umthamo womphunga ohanjiswayo, sinokubala i-flow cross-sectional efunekayo (ububanzi bombhobho).
Enyanisweni, ukhetho lombhobho aluchanekanga, ingxaki inzima kakhulu, kwaye olu hlobo lwengxaki kaninzi alufumaneki lula, ngoko kufuneka luhlawulwe ngokwaneleyo.