1. Xa kuthelekiswa nee-compressor ze-reciprocating piston refrigerating, ii-screw refrigeration compressors zineenzuzo ezininzi ezifana nesantya esiphezulu, ubunzima obulula, umthamo omncinci, indawo encinci kunye ne-exhaust pulsation ephantsi.
2. I-screw refrigeration compressor ayinamandla okubuyiselana ngobunzima, ukusebenza kakuhle kwe-dynamic balance, ukusebenza okuzinzileyo, ukungcangcazela kwesiseko esincinci, kunye nesiseko esincinci.
3. I-screw refrigeration compressor inesakhiwo esilula kunye nenani elincinci leendawo. Akukho ndawo zigugileyo ezifana nee-air valves kunye neeringi zepiston. Iindawo zayo eziphambili zokungqubana, ezifana nee-rotors kunye neebheringi, zinamandla aphezulu kunye nokumelana nokuguguleka, kwaye iimeko zokuthambisa zilungile, ngoko ke ubungakanani bomatshini buncinci, ukusetyenziswa kwezinto kuphantsi, umjikelo wokusebenza mde, ukusetyenziswa kuthembekile, ukugcinwa kulula, kwaye kuluncedo ukwenza umsebenzi ube ngowokuzenzekelayo.
4. Xa kuthelekiswa ne-speed compressor, i-screw compressor ineempawu zokuhanjiswa kwegesi ngenkani, oko kukuthi, ukufuduka akuchaphazeleki phantse luxinzelelo lokukhupha, kwaye akukho nto iyenzekayo xa ukufuduka kuncinci. Ngaphakathi kweemeko, ukusebenza kakuhle kusenokugcinwa kuphezulu.
5. Ivalvu yesilayidi isetyenziselwa uhlengahlengiso, olunokwenza uhlengahlengiso olungenamagxathu lwamandla.
6. I-screw compressor ayinangxaki nokungena kolwelo, kwaye inokupholiswa nge-oyile, ngoko ke phantsi komlinganiselo woxinzelelo ofanayo, ubushushu bokukhupha umoya buphantsi kakhulu kunobo bohlobo lwepiston, ngoko ke umlinganiselo woxinzelelo wesigaba esinye uphezulu.
7. Akukho mthamo wokucoca, ngoko ke ukusebenza kakuhle kwevolumu kuphezulu.
Umgaqo wokusebenza kunye nolwakhiwo lwe-screw compressor:
1. Inkqubo yokuphefumla:
Isango lokufunxa kwicala lokungenisa lohlobo lweskru kufuneka lenzelwe ukuba igumbi lokucinezela likwazi ukuphefumla umoya ngokupheleleyo, ngelixa i-screw air compressor ingenalo iqela le-intake and exhaust valve, kwaye umoya wokungenisa ulawulwa kuphela ngokuvula nokuvala ivalvu elawulayo. Xa i-rotor ijikeleza, indawo ye-tooth groove yee-main kunye nee-assistant rotors yeyona inkulu xa ifika ekuvulekeni kodonga lwe-intake end. Umoya uphela ngokupheleleyo, kwaye xa i-exhaust iphelile, i-tooth groove ikwimeko ye-vacuum. Xa ijika iye kwi-air inlet, umoya wangaphandle uyafunxwa kwaye ungena kwi-tooth groove yee-main kunye nee-assistant rotors kwicala le-axial. Isikhumbuzi sokugcinwa kwe-screw air compressor Xa umoya ugcwalisa i-tooth groove yonke, umphezulu we-intake side ye-rotor ujika usuke kwi-air inlet ye-casing, kwaye umoya ophakathi kwe-tooth grooves uvaliwe.
2. Inkqubo yokuvala nokudlulisa:
Xa iirotha eziphambili nezincedisayo ziphefumlwa, iincopho zamazinyo zeerotha eziphambili nezincedisayo zivalwa nge-casing, kwaye umoya uvalwe kwimiqolo yamazinyo kwaye awusaphumi, oko kukuthi, [inkqubo yokuvala]. Ezi rotha zimbini ziyaqhubeka nokujikeleza, kwaye ii-crests zamazinyo kunye nemiqolo yamazinyo ziyahambelana kwisiphelo sokufunxa, kwaye iindawo ezifanayo zihamba kancinci kancinci ziye kwisiphelo sokukhupha umoya.
3. Inkqubo yokuxinwa kunye nokufakwa kwepetroli:
Ngexesha lenkqubo yokuhambisa, umphezulu we-meshing uhamba kancinci kancinci uye kwicala lokukhupha umoya, oko kukuthi, umngxuma wamazinyo phakathi komphezulu we-meshing kunye ne-exhaust port uyancipha kancinci kancinci, igesi ekwi-exhaust yamazinyo icinezelwa kancinci kancinci, kwaye uxinzelelo luyanda, oluyi [inkqubo yoxinzelelo]. Ngelixa kucinezelwa, ioyile yokuthambisa ikwatshizwa kwigumbi loxinzelelo ngenxa yomahluko woxinzelelo ukuze ixutywe nomoya wegumbi.
4. Inkqubo yokukhupha umoya:
Xa umphezulu wesiphelo se-meshing ye-rotor ujika ukuze uqhagamshelane ne-casing exhaust, (uxinzelelo lwegesi ecinezelweyo luphezulu ngeli xesha), igesi ecinezelweyo iqala ukukhutshwa de umphezulu we-meshing we-tooth crest kwaye i-tooth groove ishukumisele kwi-exhaust. Ngeli xesha, isithuba esiphakathi komphezulu we-meshing wee-rotors ezimbini kunye ne-exhaust port ye-casing ayiziro, oko kukuthi, inkqubo yokukhupha igqityiwe. Kwangaxeshanye, ubude be-tooth groove phakathi komphezulu we-meshing wee-rotors kunye ne-air inlet ye-casing ifikelela kwi-high. Ixesha elide, inkqubo yayo yokuphefumla iyaqhubeka kwakhona.
1. I-screw compressor evalwe ngokupheleleyo
Umzimba usebenzisa isakhiwo sesinyithi esisemgangathweni ophezulu, esingenamibhobho iphantsi esinokuguquguquka okuncinci kobushushu; umzimba usebenzisa isakhiwo esinodonga oluphindwe kabini esineejelo zokukhupha umoya ngaphakathi, esinamandla aphezulu kunye nesiphumo esihle sokunciphisa ingxolo; amandla angaphakathi nangaphandle omzimba alungelelaniswe ngokusisiseko, ngaphandle kokuvula okanye ukuvala kancinci. Ukumelana nomngcipheko woxinzelelo oluphezulu; iqokobhe lisakhiwo sentsimbi esinamandla aphezulu, inkangeleko entle kunye nobunzima obulula. Sebenzisa isakhiwo esithe nkqo, icompressor ithatha indawo encinci, eluncedo kulungiselelo lweentloko ezininzi ze-chiller; ibheyari esezantsi intywiliselwa kwitanki yeoyile, kwaye ibheyari itshisiwe kakuhle; amandla e-axial erotor ancitshiswa ngama-50% xa kuthelekiswa nohlobo oluvaliweyo noluvulekileyo (i-motor shaft kwicala lokukhupha umoya umsebenzi weBalance); akukho mngcipheko we-cantilever yemoto ethe tye, ukuthembeka okuphezulu; phepha impembelelo ye-screw rotor, i-slide valve, i-motor rotor self-weight ekuchanekeni kokufanisa, phucula ukuthembeka; inkqubo elungileyo yokuhlanganisa. Uyilo oluthe nkqo lwe-screw yepompo engenawo amafutha, ukuze kungabikho kunqongophala kweoyile xa icompressor isebenza okanye ivala. I-bearing esezantsi intywiliselwa kwitanki yeoyile iyonke, kwaye i-bearing ephezulu isebenzisa unikezelo lweoyile yoxinzelelo olwahlukileyo; imfuneko yoxinzelelo olwahlukileyo lwenkqubo iphantsi, kwaye inomsebenzi wokukhusela ukuthambisa xa kukho imeko engxamisekileyo, ukuthintela ukungabikho kokuthambisa kweoyile ye-bearing, okulungele ukuqaliswa kweyunithi ngamaxesha okutshintsha.
Iingxaki: kusetyenziswa ukupholisa i-exhaust, kwaye i-motor ikwi-exhaust port, nto leyo enokubangela ukuba i-motor coil itshise ngokulula; ukongeza, ayinakususwa ngexesha xa kukho impazamo.
2. Isikrufu sesikrufu esingenamiphunga
Imoto ipholiswa sisitshizi solwelo, ubushushu bokusebenza bemoto buphantsi, kwaye ubomi benkonzo bude; icompressor evulekileyo isebenzisa imotor epholiswe ngumoya, ubushushu bokusebenza bemoto buphezulu, nto leyo echaphazela ubomi bemoto, kwaye indawo yokusebenza yegumbi lomatshini ayilunganga; imotor ipholiswa yigesi yokukhupha umoya, ubushushu bokusebenza bemoto buphezulu kakhulu, ubomi bemoto bufutshane. Ngokubanzi, isahluli seoli sangaphandle sinomthamo omkhulu, kodwa ukusebenza kwaso kuphezulu kakhulu; isahluli seoli esakhelwe ngaphakathi sidityaniswe necompressor, kwaye umthamo waso mncinci, ngoko ke umphumo uphantsi kakhulu. Isiphumo sokwahlulwa kweoyile sokwahlulwa kweoyile yesibini sinokufikelela kwi-99.999%, nto leyo enokuqinisekisa ukuthambisa okuhle kwecompressor phantsi kweemeko ezahlukeneyo zokusebenza.
Nangona kunjalo, i-plunger-type semi-hermetic screw compressor ikhawuleza ngokudluliselwa kwegiya, isantya siphezulu (malunga ne-12,000 rpm), ukuguguleka kukhulu, kwaye ukuthembeka kwayo akuthembekanga.
3. Vula isikrufu sesikrufu
Iingenelo zeyunithi evulekileyo zezi:
1) I-compressor yahlulwe kwi-motor, ukuze i-compressor isetyenziswe kuluhlu olubanzi;
2) I-compressor efanayo ingasetyenziswa nee-refrigerants ezahlukeneyo. Ukongeza ekusebenziseni ii-halogenated hydrocarbon refrigerants, i-ammonia ingasetyenziswa njenge-refrigerants ngokutshintsha izinto zezinye iindawo;
3) Iimoto ezineemandla ezahlukeneyo zinokuxhotyiswa ngokweefriji ezahlukeneyo kunye neemeko zokusebenza.
4) Uhlobo oluvulekileyo lwahlulwe lwaba yi-single-screw kunye ne-twin-screw
I-compressor yesikrufu esinye inesikrufu esisilinda kunye namavili amabini eenkwenkwezi acwangciswe ngokulinganayo, afakwe kwi-casing. I-screw groove, udonga lwangaphakathi lwe-casing (isilinda) kunye namazinyo egiya leenkwenkwezi enza ivolumu evaliweyo. Amandla adluliselwa kwi-screw shaft, kwaye ivili leenkwenkwezi liqhutywa yi-screw ukuze lijikeleze. Igesi (ulwelo olusebenzayo) ingena kwi-screw groove esuka kwigumbi lokufunxa, kwaye ikhutshwa nge-exhaust port kunye negumbi lokufunxa emva kokuba icinezelwe. Indima yevili leenkwenkwezi ilingana ne-piston ye-reciprocating piston compressor. Xa amazinyo evili leenkwenkwezi ehamba ngokumalunga ne-screw groove, ivolumu evaliweyo iyancipha kancinci kwaye igesi iyacinezelwa.
Umgaqo wokusebenza we-screw compressor kunye nothelekiso lweentlobo ezivalekileyo ngokupheleleyo, ezingenanto efihliweyo kunye nezivulekileyo
Isikrufu secompressor yesikrufu esinye sineemiqolo ezi-6 zesikrufu, kwaye ivili leenkwenkwezi linamazinyo ali-11, alingana neesilinda ezi-6. Amavili amabini enkwenkwezi aneemiqolo ezi-6 ngaxeshanye. Ke ngoko, ukujikeleza ngakunye kwesikrufu kufana neesilinda ezili-12 ezisebenzayo.
Njengoko sonke sisazi, ii-screw compressors (kuquka ii-twin-screw kunye ne-single-screw) zithatha indawo enkulu yee-rotary compressors. Ngokwembono yemarike yamazwe ngamazwe, kwiminyaka engama-20 ukusuka ngo-1963 ukuya ku-1983, izinga lokukhula konyaka lokuthengiswa kwe-screw compressor kwihlabathi yayiyi-30%. Okwangoku, ii-twin-screw compressors zithatha i-80% yee-compressors ezinomthamo ophakathi eJapan, eYurophu nase-United States. Njengee-single-screw compressors kunye nee-twin-screw compressors ezikuluhlu olufanayo lokusebenza, xa kuthelekiswa, ii-twin-screw compressors zithatha ngaphezulu kwe-80% yemarike ye-screw compressor ngenxa yetekhnoloji yazo yokucubungula elungileyo kunye nokuthembeka okuphezulu. Ii-screw compressors zithatha ngaphantsi kwe-20%. Oku kulandelayo kuthelekiso olufutshane lwee-compressors ezimbini.
1. Ulwakhiwo
Isikrufu kunye nevili leenkwenkwezi lecompressor yesikrufu esinye zezesibini zeempethu ezingqukuva, kwaye umngxuma wesikrufu kunye nomngxuma wesikrufu kufuneka zigcinwe zithe nkqo esithubeni; iirotha zesifazane nezesilisa zecompressor yesikrufu ezimbini zilingana nesibini seegiya, kwaye imingxunya yesikrufu yesifazane neyesifazane igcinwa ihambelana. Ngokwesakhiwo, ukuchaneka kwentsebenziswano phakathi kwesikrufu kunye nevili leenkwenkwezi lecompressor yesikrufu esinye kunzima ukuqinisekisa, ngoko ke ukuthembeka komatshini wonke kuphantsi kunokwesikrufu esinye.
2. Imo yokuqhuba
Zombini ezi ntlobo zecompressors zingaqhagamshelwa ngqo kwi-motor okanye ziqhutywe yi-belt pulley. Xa isantya se-compressor ye-twin-screw siphezulu, igiya yokukhawulezisa kufuneka yonyuswe.
3. Indlela yokulungisa umthamo wokupholisa
Iindlela zokulungisa umthamo womoya zezi compressors zimbini ziyafana, zombini ezinokuthi zisebenzise uhlengahlengiso oluqhubekayo lwevalvu yesilayidi okanye uhlengahlengiso oluhamba ngenyathelo lweplunger. Xa ivalvu yesilayidi isetyenziselwa uhlengahlengiso, icompressor yesikrufu esiphindwe kabini ifuna ivalvu yesilayidi enye, ngelixa icompressor yesikrufu esinye ifuna iivalvu zesilayidi ezimbini ngaxeshanye, ngoko ke isakhiwo siba nzima kwaye ukuthembeka kuncipha.
4. Iindleko zokuvelisa
I-compressor yesikrufu esinye: Iibheringi eziqhelekileyo zingasetyenziselwa iibheringi zesikrufu kunye neebheringi zamavili eenkwenkwezi, kwaye iindleko zokuvelisa ziphantsi kakhulu.
I-compressor yezikrufu ezimbini: Ngenxa yomthwalo omkhulu kwiirotor ezinezikrufu ezimbini, kufuneka kusetyenziswe iibheringi ezichanekileyo kakhulu, kwaye iindleko zokuvelisa ziphezulu.
5. Ukuthembeka
I-compressor enezikrufu esinye: Ivili leenkwenkwezi le-compressor enezikrufu esinye liyinxalenye ebuthathaka. Ukongeza kwiimfuneko eziphezulu zezinto ezisetyenziswa kwivili leenkwenkwezi, ivili leenkwenkwezi kufuneka litshintshwe rhoqo.
I-compressor yezikrufu ezimbini: Akukho zinto zigugileyo kwi-compressor yezikrufu ezimbini, kwaye ixesha lokusebenza elingenazingxaki lingafikelela kwiiyure ezingama-40,000 ukuya kuma-80,000.
6. Ukuhlanganiswa nokugcinwa
Ekubeni i-screw shaft kunye ne-star wheel shaft ye-single-screw compressor kufuneka zigcinwe zithe nkqo endaweni, iimfuno zokuchaneka kwe-axial kunye ne-radial position ziphezulu kakhulu, ngoko ke ukulula kokuhlanganisa kunye nokugcinwa kwe-single-screw compressor kuphantsi kune-twin-screw compressor.
Iingxaki eziphambili zeyunithi evulekileyo zezi:
(1) Itywina leshaft kulula ukulivuza, nto leyo ekwayinto egcinwa rhoqo ngabasebenzisi;
(2) Injini exhotyisiweyo ijikeleza ngesantya esiphezulu, ingxolo yokuhamba komoya inkulu, kwaye ingxolo yecompressor ngokwayo nayo inkulu kakhulu, nto leyo echaphazela okusingqongileyo;
(3) Izixhobo zenkqubo yeoyile ezintsonkothileyo ezifana nezihluli zeoyile ezahlukeneyo kunye nezipholileyo zeoyile kufuneka zicwangciswe, kwaye iyunithi inkulu kwaye ayilungele ukusetyenziswa nokugcinwa.
I-compressor yezikrufu ezine, ezintathu
Ulwakhiwo olukhethekileyo lwejometri ye-three-rotor lugqiba ukuba inezinga eliphantsi lokuvuza kune-compressor ye-double-rotor; i-compressor ye-screw ye-three-rotor inokunciphisa kakhulu umthwalo kwi-bearing; ukunciphisa umthwalo we-bearing kwandisa indawo yokukhupha umoya, ngaloo ndlela kuphucula ukusebenza kakuhle; kubaluleke kakhulu ukunciphisa ukuvuza kweyunithi phantsi kwayo nayiphi na imeko yomthwalo, ingakumbi xa usebenza phantsi kwemeko yomthwalo ongaphelelanga, impembelelo inkulu nangakumbi.
Ukuzilawula ngokwakho: Xa inkqubo itshintsha, i-sensor iphendula ngokukhawuleza, kwaye umlawuli wenza izibalo ezinxulumene noko, ukuze azilawule ngokukhawuleza nangokufanelekileyo; ukuzilawula akuthintelwanga zii-actuators, ii-guide vanes, ii-solenoid valves kunye nee-slide valves, kwaye zinokwenziwa ngokuthe ngqo, ngokukhawuleza nangokuthembekileyo.
Ixesha lokuthumela: Feb-10-2023
