Xa iyunithi yefriji ye-screw iqalwa, into yokuqala ukwazi ukuba ingaba inkqubo yefriji isebenza ngokuqhelekileyo. Oku kulandelayo yintshayelelo emfutshane yomxholo kunye neempawu zokusebenza okuqhelekileyo, kwaye oku kulandelayo kwenzelwa ireferensi kuphela:
Amanzi okupholisa i-condenser kufuneka anele, uxinzelelo lwamanzi kufuneka lube ngaphezu kwe-0.12MPa, kwaye ukushisa kwamanzi akufanele kube phezulu kakhulu.
Kwiiyunithi zefriji ye-screw, ukufundwa kwegeyiji yempompo ye-oyile kufuneka ibe yi-0.15 ~ 0.3MPa ephezulu kunoxinzelelo lokukhupha.
Phantsi kwazo naziphi na iimeko, ubushushu be-oyile akufunekanga bugqithe kuma-70°C kwiyunithi yesikhenkcisi se-fluorine kunye ne-65°C kwizikhenkcisi ze-ammonia, kwaye ubuncinci akufunekanga bube ngaphantsi kwe-30°C. Ngaphantsi kweemeko eziqhelekileyo zokusebenza, ioli yokuthambisa akufanele igwebe (ngaphandle kweyunithi yefriji ye-fluorine).
Ubushushu bokukhutshwa kweyunithi yefriji. I-ammonia kunye ne-R22 ayidluli i-135 ° C, kwaye ukuba i-exhaust gas iqondo lokushisa likhuphuka ngakumbi, liya kuba lincinci kakhulu xa lithelekiswa ne-flash point ye-oyile yefriji (160 ° C), engafanelekanga kwisixhobo. Ngoko ke, ukusuka kwindawo yokujonga ukusetyenziswa, ukushisa kweqondo lokushisa akufanele kube phezulu kakhulu, kwaye ukuba kuphezulu kakhulu, kufuneka kumiswe ukuze kufumaneke isizathu.
Inqanaba loxinzelelo loxinzelelo. Ikakhulu inqunywe ngokuhambelana nomthombo wamanzi, isakhiwo se-condenser kunye nefriji esetyenzisiweyo. Umgangatho we-liquid we-reservoir awuyi kuba ngaphantsi kwesinye kwisithathu sesalathisi somgangatho we-liquid, kwaye inqanaba le-oyile ye-crankcase aliyi kuba ngaphantsi komgca othe tye ophakathi wefestile yesalathisi.
Umbhobho ozenzekelayo wokubuyisela ioli ye-fluorine ye-oil separator iyinto eqhelekileyo xa ibanda kwaye ishushu, kwaye umjikelezo obandayo kunye noshushu malunga neyure eli-1. Kufuneka kungabikho mahluko ucacileyo wobushushu phambi nasemva kwesihluzo sombhobho wolwelo. Akufunekanga kubekho iqabaka, kungenjalo iya kuvalelwa. Ifriji yefluorine kufuneka ipholile kwicala elisicaba kwaye ishushu kwicala elomileyo. Amalungu enkqubo ye-fluorine akufanele avuze ioli, oku kuthetha ukuvuza kwe-fluorine.
Xa uchukumisa i-condenser ethe tyaba ngexesha lokusebenza, inxalenye ephezulu kufuneka ishushu kwaye inxalenye engezantsi kufuneka ipholile. Indawo ekudibanela kuyo ukubanda nokushushu yinqanaba lolwelo lwefriji. Isahluli seoli sikwashushu kwindawo ephezulu, kwaye inxalenye engezantsi ayishushu kakhulu. I-valve yokhuseleko okanye i-valve ye-bypass yefriji kufuneka uzive ipholile ekupheleni koxinzelelo oluphantsi, ukuba ayipholile, ithetha ukuvuza komoya ophezulu kunye noxinzelelo oluphantsi.
Ngexesha lokusebenza, uxinzelelo lwe-steam lufanele lufane noxinzelelo lokufunxa, kwaye ukukhutshwa koxinzelelo kwisiphelo esiphezulu kufuneka kufane noxinzelelo loxinzelelo kunye noxinzelelo lommkeli wamanzi. Ukuba akunjalo, ayiqhelekanga.
Ngaphantsi komlinganiselo othile wokuhamba kwamanzi, kufuneka kubekho umahluko wobushushu phakathi kwendawo yokungena nokuphuma kwamanzi okupholisa. Ukuba akukho ntlukwano yeqondo lokushisa okanye iqondo lokushisa elincinci kakhulu, kuthetha ukuba indawo yokutshintshwa kobushushu besixhobo sokutshintsha ubushushu bumdaka kwaye kufuneka ivalwe ukucoca.
Ifriji ngokwayo kufuneka ivalwe kwaye akufanele ivuze ifriji kunye neoli yokuthambisa. Ukutywinwa kwe-shaft, xa umthamo wokupholisa osemgangathweni ngu-12.6 × 1000 kJ / h, itywina le-shaft livumelekile ukuba libe nexabiso elincinci lokuvuza kweoli, kunye nefriji kunye nomgangatho wokupholisa oqhelekileyo> 12.6 × 1000 kJ / h ayivumelekanga ukuba ingabikho ngaphezu kwe-10 yehla ye-oyile yokuvuza, iyunithi yokuvuza kwe-oyile ye-shaorine ayifanele ibe neyunithi ye-oyile ye-shaorine i-shaorine ioli evuzayo.
Ubushushu be-shaft seal kunye nokuthwala kwefriji akufanele kudlule i-70 ° C.
Iqabaka okanye umbethe kwivalve yokwandisa iyafana, kodwa iqabaka engqindilili akufunekanga ibonakale kwindawo yokungena.
Ixesha lokuposa: Mar-13-2023