Ii-screw friji compressors zii-volumetric compressors. Ekubeni bezisetyenziswa ukususela ngo-1934, ngenxa yokusebenza kwazo okugqwesileyo, ukungagugi, kunye nomthamo omkhulu wokupholisa, ziye zalawula iinkqubo zokufriji ezincinci ukuya kwezinkulu neziphakathi. Ngoko ke zeziphi iintlobo zokungaphumeleli ezinokwenzeka kwi-screw compressors zokufriji ye-fluorine ngexesha lokusetyenziswa, makhe sijonge ngezantsi!
1. Umlinganiselo ongaqhelekanga woxinzelelo
2. Ukusebenza okuphantsi kunye nokungasebenzi kakuhle kwe-condenser
3. Ukusebenza kakuhle okuphantsi kunye nokungaphumeleli kwe-evaporator
4. Ukusilela kwenkqubo yesekethe yeoyile
5. Ukusilela kombane
1. Umlinganiselo ongaqhelekanga woxinzelelo
Umlinganiselo woxinzelelo uqhelekile kuye nabani na owaziyo malunga nokusebenza kwe-compressor. Kodwa yintoni inzuzo yomlinganiselo woxinzelelo? Ngaba sisixhobo nje sekhompyutha esiyilelweyo, eneneni, asinjalo.
Umahluko phakathi komatshini wezikrufu kunye nomatshini wepiston kukuba umatshini wepiston uya kucinezelwa kancinci kuphela, ngelixa umatshini wezikrufu uya kucinezelwa kakhulu.
Ichaphazeleka bulwakhiwo, umatshini wesikrufu unedatha ebalulekileyo, oko kukuthi, umlinganiselo wevolumu yangaphakathi, isifinyezo sesiNgesi uVi, kwiicompressor ezininzi zesikrufu, uVi uzinzile. Ngokwembono yolondolozo kunye nokusebenza, ixabiso lomlinganiselo wevolumu yangaphakathi lifana kakhulu nexabiso lomlinganiselo woxinzelelo lwangaphandle (umlinganiselo woxinzelelo olupheleleyo loxinzelelo lokufunxa kunye noxinzelelo lokuphuma), kwaye ukusebenza kakuhle kwale compressor kuphezulu kakhulu.
Ngoko ke kwenzeka ntoni xa umlinganiselo woxinzelelo mkhulu okanye umncinci?
Ukuba inkulu kakhulu, okanye umahluko woxinzelelo mkhulu kakhulu, oko kungqina ukuba inkqubo iyaphambuka ngokupheleleyo kwixabiso loyilo. Iziganeko eziphambili kukuba ubushushu bokukhupha kunye nobushushu boxinzelelo buphezulu kakhulu, uxinzelelo lokufunxa luphantsi, kwaye ubushushu buphezulu.
Ukuba uxinzelelo lokukhupha umoya kunye nobushushu buphezulu kakhulu, imiphumo emibi kukuba ioyile yokuthambisa ekwinkqubo kulula ukuyicola, ayifanelekanga ukwenza ifilimu yeoyile, kwaye i-rotor ayinakuthambisa ngokupheleleyo.
Uxinzelelo oluphantsi lokufunxa, ubushushu obuphezulu boxinzelelo lokufunxa buchaphazela kakhulu ukupholisa kwemoto, kunye nobushushu obuphezulu bokukhupha umoya. Iziphumo ziyafana nobushushu obuphezulu bokukhupha umoya kunye noxinzelelo.
Ukuba incinci kakhulu, ichaphazela kakhulu ukutyibilika okumanzi (imoto emanzi, iqabaka eliguqulweyo). Kwezinye izinto, i-screw compressor ayixhathisi ukutyibilika okumanzi, kuquka ezinye zeendlela zethu zoyilo, kwaye abathengisi bathanda ukuyikhuthaza ngolu hlobo. Enyanisweni, oomatshini bezikrufu bayoyika ukutyibilika okumanzi. Ukuba isixa esikhulu solwelo sibuyela kwi-compressor, siya kubangela ukunyibilika kweoyile yokuthambisa, kwaye isiphumo silingana nobushushu obuphezulu bokukhupha umoya.
Kakade ke, umlinganiselo woxinzelelo umncinci kakhulu, kwaye ubangelwa kukuguguleka okukhulu kwerotor kunye nokungaphumeleli kokulayisha nokukhupha umthwalo.
2. Ukusebenza kakuhle kwe-condenser kuphantsi
Ukusebenza okuphantsi kwe-condenser kuchaphazela kakhulu ubushushu bomthombo wolwelo kunye nokuba ingaba lulwelo na. Siyazi ukuba ivalvu yokwandisa ifanelekile ukuba inikwe ulwelo olupheleleyo. Ngale ndlela, ukusebenza kakuhle kwenkqubo kuphezulu kwaye amandla okupholisa ngawona makhulu. Ngaphezu koko, iiyunithi ezinkulu ngokusisiseko zinendawo yokugcina eqhotyoshelweyo, esetyenziselwa kakhulu ukupholisa ioyile. Ke ngoko, kubaluleke kakhulu ukugcina ukusebenza okuphezulu kwe-condenser. Ukungaphumeleli kubangelwa kukukhetha gwenxa indlela yokupholisa, indawo yokufuma enganeleyo, indawo yokupholisa enganeleyo, kunye nokutshintshiselana kobushushu okunganelanga. Ke ngoko, amanqaku aphambili afana neefeni, iimpompo zamanzi, kunye neempiko zijongwa kakhulu ngexesha lokuhlolwa.
Ukuthetha ngale nto, isiphumo sokufuma silungile kakhulu. Umzekelo, ukuba ubushushu obuphakathi buphantsi kakhulu, isiphumo sokufuma silungile kakhulu, nto leyo ebangela ukusebenza kakuhle kolwelo olungena kwi-evaporator. Ngeli xesha, i-suction superheat iphantsi kakhulu kwaye uvakalelo lwe-expansion valve luphantsi, nto leyo eya kubangela ukuqhawuka kwe-hydraulic Start. Okanye umahluko phakathi koxinzelelo lokukhupha umoya kunye noxinzelelo lokufunxa alwanele, nto leyo eyingozi kumatshini we-screw one-differential pressure oil supply.
3. Ukusebenza kakuhle kwe-evaporator kuphantsi okanye kuphezulu
Ukusebenza okuphantsi kwe-evaporator kuchaphazela kakhulu ukupholisa kwento eza kupholiswa, ngelixa ukubetheka okumanzi kuchaphazela i-compressor. Kwaye ukusebenza okuphezulu kuya kubangela ukuba i-suction superheat ibe phezulu kakhulu, nto leyo eya kuchaphazela ubushushu bokukhupha i-compressor.
Isigwebo sokubetha okumanzi
Ukubetha okumanzi, phantsi kwemeko yobushushu obuphantsi, ukugweba kulula kakhulu, ikakhulu kugwetywa ngomgca weqhwa ofunxayo wecompressor, kodwa kuthekani ngemeko ye-air conditioner? Ngombethe? Ingakumbi kwii-chillers, ukuba kukho ingxaki ekugwebeni, iya kubangela iingxaki ezifana nokuqhekeka kunye nokungena kwamanzi. Ke ngoko, inokugwetywa ngokwedayagram yoxinzelelo-enthalpy, okanye ixabiso lobushushu bomphunga ngaphandle kobushushu emva kokufuma. Ukuba ixabiso lingaphantsi kwe-30K, lingagwetywa njengokubetha okumanzi.
Makhe ndithethe enye into apha, ivalvu yokwandisa, andinalo uluhlu olwahlukileyo (jonga incwadi yam yokugcinwa kwevalvu yokwandisa). Ivalvu yokwandisa ayilovalvu elawula yonke indawo, kwaye ayizizo zonke iimeko zokusebenza ezihlangabezana neemfuno zohlengahlengiso lwevalvu yokwandisa. Ingakumbi iinqwelo ezinkulu ezitsalwa ngamahashe.
4. Ingxaki yesekethe yeoyile
Kwisekethe yeoyile, ibonakala kakhulu kumgangatho weoyile, ucoceko, ubushushu bokubuyela kweoyile, njl. Umsebenzi ophambili weoyile yokuthambisa kwinkqubo yokufrijisa ye-screw compressor kukugcoba, ukupholisa kunye nokuvala.
Ukongeza, ikwanomsebenzi wokunciphisa ingxolo kunye nokufunxwa komothuko, kodwa kukho impikiswano eninzi kushishino, ikakhulu kuba ioyile iya kwenza amaqamza omoya kwinxalenye yemoto, kwaye amaqamza omoya aya kuyisusa ingxolo, kodwa abanye abavelisi bacinga ukuba ayinamsebenzi, kwaye igesi-ulwelo kunzima ukuyilawula, ngoko endaweni yoko yongeza into yokuthintela igwebu.
Ukufunxwa komothuko ikakhulu kukwenza ukuba iibheringi eziqengqelekayo zithambise, kwaye esi siphumo asibonakali, ngoko ke le misebenzi mibini ingasentla ayinakuthathwa njengemisebenzi ephambili.
Ubushushu bokubuya kweoyile buchaphazela kakhulu ubomi benkonzo ye-screw compressor. Ngokubanzi, ubushushu obucetyiswayo bokusebenza buphakathi kwama-40 nama-60°C, kwaye abanye abavelisi nabo baphawula ama-70°C okanye ama-80°C. Ubushushu beoyile obuphezulu kakhulu buya kubangela ukucolwa kweoyile kwaye bonakalise ukwakheka kwefilimu yeoyile. Ubushushu beoyile bukwachaphazela ubushushu bokukhupha umoya, nto leyo echaphazela umlinganiselo woxinzelelo. Ke ngoko, nceda uqaphele uhlengahlengiso xa ukhetha ubushushu beoyile.
ucoceko lweoyile
Ukucoceka kweoyile kukwakucoceko lwenkqubo. Ukugcina ucoceko lolona phawu luphambili lwe-screw compressor. I-screw compressor ayilingani ne-piston compressor. Ngenxa yezizathu zesakhiwo, ukucoceka kwenkqubo kuphezulu kunokwe-piston compressor. Ngenxa yesantya esiphezulu se-meshing rotor, ezinye izinto zangaphandle zifunxwa ngokukhawuleza kwi-compressor, nto leyo ebangela umonakalo kwi-meshing rotor, ingakumbi ezinye iisuntswana ezincinci zesinyithi okanye izinto zangaphandle, eziya kugqobhoza kwi-interception ye-suction filter (kubandakanya ezinye izinto zangaphandle ezinkulu, Umonakalo kwisikrini sesihluzo ngenxa yokufunxwa awuqhelekanga), okanye ingxaki yokuhlanganisa umatshini ngokwawo, nto leyo ebangela ukuba iindawo ziwe kwaye zibambeke phakathi kwee-rotors. Kuya kufuneka ukuba ibangele umonakalo ngqo kwi-motor. Nangona iisuntswana ezincinci zesinyithi zingasebenzi ngokuthe ngqo, zichaphazela ifilimu yeoyile ye-rotor, nto leyo ebangela ukuthambisa okungekho semgangathweni kwe-rotor bearing, ukunamathela kwesilinda, kunye nokuluma kwebhokisi ye-bearing. Eyona nto imbi kakhulu kukuba iisuntswana ezincinci ziya kwenza i-short-circuit chain kwaye zibangele umonakalo ngqo kwi-motor.
Iicompressor zeoyile ezithambisayo ezinamafutha amaninzi zihlala zivumba ivumba elitshileyo leoyile yokuthambisa xa zivulwa ukuze zihlalutywe. Ubushushu buphezulu kakhulu xa umphezulu wesinyithi utyebile kakhulu, kwaye ioyile yokuthambisa iqala ukubila xa ingaphezulu kwe-175oC. Ukuba kukho amanzi amaninzi kwinkqubo (ukupompa i-vacuum akulunganga, ioyile yokuthambisa kunye ne-refrigerant zinomthamo omkhulu wamanzi, umoya ungena emva kokuba umbhobho womoya obuyayo ophantsi koxinzelelo uphukile, njl.njl.), ioyile yokuthambisa inokuba ne-asidi. Ioyile yokuthambisa enamafutha iya kugqwala iityhubhu zobhedu kunye ne-winding insulation. Kwelinye icala, iya kubangela i-copper plating; kwelinye icala, ioyile yokuthambisa enamafutha enamafutha equlethe iiathom zobhedu ayinawo umgangatho wobushushu ofanelekileyo, nto leyo ebonelela ngeemeko zokujikeleza okufutshane.
Kwiiyunithi ze-screw compressor, iintlobo ezininzi zeziphene zibangelwa ziinkalo ezahlukeneyo. Umzekelo, ukusilela kwe-lubrication okubangelwa kukungabikho kweoyile kubangela ukuba i-bearing ibambeke, i-rotor ibambeke, emva koko i-compressor motor ivalwe, i-compressor idibana nokunyuka okungaqhelekanga, kwaye itshise imoto. Kwaye kutheni ukungabikho kweoyile okanye ukusilela kwe-lubrication? Enyanisweni, kubangelwa kakhulu kubushushu obuphezulu bokukhupha umoya, ukutshayiswa kolwelo kunye nezinye izizathu. Ke ngoko, kubasebenzi bokulungisa, ezi zinto zonke zifuna ukujongwa ngononophelo kunye nokucinga nzima ngaphambi kokuba zilungiswe kwaye zigqitywe.
1. Ioyile iyabila ngexesha lokuqalisa okanye ukusebenza
Le ngxaki ibangelwa lulwelo olungena kwi-compressor, okanye kukho i-refrigerant eninzi kakhulu kwi-oyile yokuthambisa. Nceda ulungise indlela yokuthambisa ukuze ujonge ukuba i-refrigerant itshajiwe kakhulu na.
2. Inqanaba leoyile alanelanga okanye liphezulu kakhulu
Ukuba ayonelanga, kufuneka kuqwalaselwe ukuba ingaba yingxaki yeoyile, ubungakanani bokugcwalisa abulonelanga, kwaye kunzima ukubuyisela ioyile kwi-evaporator. Xa uyigcina, qaphela ukuba akukho nqanaba lolwelo kwi-liquid reservoir. Kufuneka kuqwalaselwe ukuba indlela yokuqhobosha iphosakele okanye ibangelwe kukufakelwa okungenangqiqo.
Ukuba iphezulu kakhulu, kufuneka kuthathelwe ingqalelo ukuba isihluzi seoli sivaliwe kwaye i-refrigerant ixutywe neoyile.
3. Ubushushu bomphunga buphezulu kakhulu
Zininzi izinto ezibangela ubushushu obuphezulu bokukhupha umoya, ikakhulu ngenxa yefriji eninzi kakhulu okanye encinci kakhulu, ubushushu obukhulu bokufunxa umoya, kunye neemeko zokusebenza ezingazinzanga.
4. Uxinzelelo lokufunxa oluphantsi okanye olutshintshatshintshayo
Iimpawu eziphambili zoxinzelelo oluphantsi lokufunxa kukungabikho kwe-refrigerant, ukungalingani kwendlela yokuthomalalisa, ubushushu obuphezulu bokujiya, ukubetheka kolwelo, njl.njl.
Ixesha lokuthumela: Disemba-05-2022
