1. Umgaqo-siseko wohlengahlengiso lwenqanaba lesine le-screw compressor
Inkqubo yokulungelelanisa umthamo wezigaba ezine iquka i-valve yesilayidi yokulungiswa kwamandla, iivalve ezintathu eziqhelekileyo ezivaliweyo ze-solenoid kunye nesethi yokulungelelanisa umthamo we-hydraulic pistons.Uluhlu oluhlengahlengiswayo luyi-25% (esetyenziswa xa uqala okanye ukuyeka), 50%, 75%, 100%.
Umgaqo kukusebenzisa ipiston yoxinzelelo lweoyile ukutyhala ivalve yesilayidi yokulawula umthamo.Xa umthwalo uyingxenye, ivalve yesilayidi yolawulo lomthamo ishukuma ukuba idlule inxalenye yerhasi yefriji ibuyele kwisiphelo sokufunxa, ukuze izinga lokuhamba kwerhasi epholileyo lincitshiswe ukuze kufezekiswe umsebenzi womthwalo oyinxenye.Xa imisiwe, amandla entwasahlobo enza ukuba ipiston ibuyele kwimeko yokuqala.
Xa icompressor isebenza, uxinzelelo lweoyile luqala ukutyhala ipiston, kwaye ukuma kwepiston yoxinzelelo lweoyile kulawulwa sisenzo sevalve yesolenoid, kwaye ivalve yesolenoid ilawulwa ngokungena kwamanzi (outlet) ubushushu bokutshintsha kwesixhobo. inkqubo evaporator.Ioyile elawula i-piston yokulungiswa kwamandla ithunyelwa kwi-tank yokugcina i-oyile ye-casing ngokusebenzisa uxinzelelo oluhlukeneyo.Emva kokudlula kwi-oyile yokucoca, i-capillary isetyenziselwa ukunciphisa ukuhamba kwaye emva koko ithunyelwe kwi-cylinder ye-hydraulic.Ukuba i-oyile filter ivaliwe okanye i-capillary ivaliwe, umthamo uya kuvinjelwa.Inkqubo yohlengahlengiso ayisebenzi kakuhle okanye iyasilela.Ngokufanayo, ukuba i-valve ye-solenoid yohlengahlengiso iyasilela, imeko efanayo iya kwenzeka.
1. I-25% iqala ukusebenza
Xa icompressor iqalisiwe, umthwalo kufuneka uncitshiswe ube ubuncinci ukuze kube lula ukuqalisa.Ke ngoko, xa i-SV1 iculwa, ioyile idlula ngokuthe ngqo ibuyele kwigumbi loxinzelelo oluphantsi, kwaye ivalve yesilayidi yevolumetric ineyona ndawo inkulu yokudlula.Ngeli xesha, umthwalo ngu-25% kuphela.Emva kokuba i-Y-△ igqityiwe, icompressor inokuqalisa ukulayisha kancinci kancinci.Ngokubanzi, ixesha lokuqala lomsebenzi womthwalo we-25% limiselwe malunga nemizuzwana engama-30.
2. 50% umsebenzi womthwalo
Ngokuqhutywa kwenkqubo yokuqalisa okanye inyathelo lokutshintsha ubushushu obumiselweyo, ivalve ye-SV3 solenoid inamandla kwaye ivuliwe, kwaye ipiston yokulungelelanisa umthamo ihambela kwizibuko le-oyile yokudlula i-oyile yevalve ye-SV3, iqhuba indawo yomthamo. -ukulungelelanisa i-valve yesilayidi ukutshintsha, kwaye inxalenye yegesi efrijini idlula kwi-screw Isiphaluka se-bypass sibuyela kwigumbi eliphantsi loxinzelelo, kwaye i-compressor isebenza kwi-50% yomthwalo.
3. 75% umsebenzi womthwalo
Xa inkqubo yokuqaliswa kwenkqubo iphunyeziwe okanye isetyenzisi sokutshintsha ubushushu sivuliwe, uphawu luthunyelwa kwivalve ye-solenoid SV2, kwaye i-SV2 inikwe amandla kwaye ivuliwe.Buyela kwicala eliphantsi loxinzelelo, inxalenye yegesi epholileyo ibuyela kwigumbi eliphantsi loxinzelelo olusuka kwi-screw bypass port, ukunyuka kwe-compressor kuyanda (kuyancipha), kwaye i-compressor isebenza kwi-75% yomthwalo.
4. 100% umsebenzi ogcweleyo womthwalo
Emva kokuba icompressor iqalile, okanye ubushushu bamanzi abandayo buphezulu kunexabiso elibekiweyo, i-SV1, SV2, kunye ne-SV3 ayinamandla, kwaye ioli ingena ngokuthe ngqo kwi-cylinder yoxinzelelo lweoyile ukutyhala ipiston yohlengahlengiso lwevolumu phambili, kunye nepiston yohlengahlengiso lwevolumu. iqhuba ivalve yesilayidi yohlengahlengiso lwevolumu ukuze ihambe, ukuze ukupholisa I-ejenti yegesi yokudlula izibuko iyancipha ngokuthe ngcembe de ivalve yesilayidi yohlengahlengiso ityhale ngokupheleleyo ezantsi, ngeli xesha icompressor ibaleka kwi-100% yomthwalo ogcweleyo.
2. Screw compressor inkqubo yohlengahlengiso umthamo
Umgaqo osisiseko we-no-stage capacity adjustment system iyafana naleyo yenkqubo yohlengahlengiso lwamanqanaba amane.Umahluko ulele ekusetyenzisweni kolawulo lwevalve ye-solenoid.Ukulawulwa kwamandla okunezigaba ezine kusetyenziswa iivalve ezintathu eziqhelekileyo ezivaliweyo ze-solenoid, kunye nokulawulwa kwamandla angekho kwinqanaba lisebenzisa i-valve ye-solenoid ngokuqhelekileyo evulekileyo kunye neyodwa okanye ezimbini eziqhelekileyo ezivaliweyo ze-solenoid ukulawula ukutshintshwa kwe-solenoid valve., ukugqiba ukuba ulayishe okanye ukhulule i-compressor.
1. Uluhlu lohlengahlengiso lwamandla: 25% ~ 100%.
Sebenzisa ivalve ye-solenoid eqhelekileyo evaliweyo i-SV1 (ukulawula i-oyile yokukhupha ipassage) ukuqinisekisa ukuba icompressor iqala phantsi komthwalo omncinci kunye nevalve ye-solenoid eqhelekileyo evulekileyo i-SV0 (i-oyile yokulawula i-oyile yokungena), lawula i-SV1 kunye ne-SV0 ukuba inikwe amandla okanye hayi ngokweemfuno zomthwalo. Ukufezekisa umphumo wokulawula ukulungelelaniswa kwamandla, uhlengahlengiso olunjalo olungenasiphelo lunokulawulwa ngokuqhubekayo phakathi kwe-25% kunye ne-100% yamandla okufezekisa umsebenzi wemveliso ezinzileyo.Ixesha elicetyiswayo lesenzo sokulawula i-valve ye-solenoid malunga ne-0.5 ukuya kwi-1 yesibini kwifom ye-pulse, kwaye inokulungiswa ngokwemeko yangempela.
2. Uluhlu lokuhlengahlengiswa kwamandla: 50% ~ 100%
Ukuthintela i-compressor motor efrijini ukuba isebenze phantsi komthwalo ophantsi (25%) ixesha elide, elinokubangela ukuba ubushushu bemoto buphakame kakhulu okanye ivalve yokwandisa ibe nkulu kakhulu ukuba ibangele ukuxinzezeleka kolwelo, icompressor inokulungiswa. ukuya kumthamo ophantsi xa uyilwa inkqubo yohlengahlengiso olungenanyathelo.Ukulawula ngaphezu kwe-50% yomthwalo.
I-valve ye-solenoid eqhelekileyo evaliweyo i-SV1 (i-oil bypass yokulawula) isetyenziselwa ukuqinisekisa ukuba i-compressor iqala kumthwalo omncinci we-25%;Ukongeza, ivalve ye-solenoid evulekileyo i-SV0 (i-oyile yokulawula i-inlet passage) kunye ne-valve ye-solenoid eqhelekileyo ivaliwe i-SV3 (i-oyile yokulawula ukufikelela kwi-drain) ukunciphisa ukusebenza kwe-compressor phakathi kwe-50% kunye ne-100%, kunye nokulawula i-SV0 kunye ne-SV3 ukufumana amandla okanye ukungafezekisi isiphumo solawulo oluqhubekayo kunye nolungenanyathelo lohlengahlengiso lwamandla.
Ixesha eliphakanyisiweyo lokusebenzisa i-valve ye-solenoid: malunga ne-0.5 ukuya kwi-1 yesibini ngendlela ye-pulse, kwaye uyilungise ngokwemeko yangempela.
3. Iindlela ezine zokulungelelanisa ukuhamba kwe-screw compressor
Iindlela ezahlukeneyo zokulawula i-screw air compressor
Kukho izinto ezininzi ekufuneka ziqwalaselwe xa ukhetha uhlobo lwe-screw air compressor.Ukusetyenziswa komoya okuphezulu kufuneka kuthathelwe ingqalelo kwaye umda othile kufuneka uthathelwe ingqalelo.Nangona kunjalo, ngexesha lokusebenza kwemihla ngemihla, i-compressor yomoya ayisoloko iphantsi kwemeko yokukhutshwa.
Ngokwezibalo, umyinge womthwalo we-compressor yomoya e-China umalunga ne-79% kuphela yezinga lokuhamba kwevolumu.Ingabonwa ukuba izibonakaliso zokusetyenziswa kwamandla eemeko zomthwalo olinganisiweyo kunye neemeko zomthwalo wenxalenye kufuneka ziqwalaselwe xa ukhetha i-compressors.
Zonke i-screw air compressors zinomsebenzi wokulungelelanisa ukufuduka, kodwa amanyathelo okuphunyezwa ahluke.Iindlela eziqhelekileyo ziquka i-ON / OFF ukulayisha / ukukhulula ukulungiswa, i-suction throttling, i-motor frequency conversion, umthamo we-valve yesilayidi, njl. Ezi ndlela zohlengahlengiso zinokudityaniswa ngokuguquguqukayo ukuze kulungiswe uyilo.
Kwimeko yokusebenza kakuhle kwamandla kwe-compressor host, ekuphela kwendlela yokufezekisa ukonga ngakumbi kwamandla kukwandisa indlela yokulawula ukusuka kwicompressor iyonke, ukuze ngokwenene kuphunyezwe iziphumo zogcino lwamandla kwindawo yosetyenziso lweecompressor zomoya. .
I-Screw air compressors inoluhlu olubanzi lwezicelo, kwaye kunzima ukufumana indlela yokulawula esebenzayo ngokupheleleyo efanelekileyo kuzo zonke izihlandlo.Kufuneka ihlalutywe ngokubanzi ngokweyona meko yesicelo ukuze ukhethe indlela yokulawula efanelekileyo.Oku kulandelayo kwazisa ngokufutshane iindlela ezine zolawulo eziqhelekileyo kuquka nezinye iimpawu eziphambili kunye nokusetyenziswa.
1. ON/OFF ukulayisha/ukukhupha ulawulo
ON/OFF ukulayisha/ukukhupha ulawulo yindlela eqhelekileyo nelula yokulawula.Umsebenzi wayo kukulungelelanisa ngokuzenzekelayo ukutshintshwa kwe-valve ye-inlet ye-compressor ngokobungakanani bokusetyenziswa kwegesi yomthengi, ukwenzela ukuba i-compressor ilayishwe okanye ikhutshwe ukunciphisa ukunikezelwa kwegesi.Ukuguquguquka koxinzelelo.Kulo lawulo kukho i-solenoid valves, i-valve yokungena, i-vent valves kunye nemigca yokulawula.
Xa ukusetyenziswa kwegesi yomthengi ilingana okanye inkulu kunomthamo olinganisiweyo wokukhupha weyunithi, i-valve ye-solenoid yokuqala / yokukhulula ikwimeko yokunika amandla kwaye umbhobho wokulawula awuqhutywa.Ukubaleka phantsi komthwalo.
Xa ukusetyenziswa komoya womthengi kungaphantsi komgangatho wokufuduswa, uxinzelelo lombhobho wecompressor luya kunyuka kancinci.Xa uxinzelelo lokukhutshwa lufikelela kwaye ludlula uxinzelelo lokukhupha iyunithi, i-compressor iya kutshintshela ekusebenzeni kokukhulula.Ivalve ye-solenoid yokuqala/yokukhulula ikwimeko yokucima umbane ukulawula ukuqhutywa kombhobho, kwaye enye indlela kukuvala ivalve yokungena;enye indlela kukuvula i-valve yokukhupha umoya ukukhulula uxinzelelo kwitanki yokwahlula i-oyile-gesi kude kube uxinzelelo lwangaphakathi lwetanki yokwahlula i-oyile-gesi luzinzile (ngokuqhelekileyo i-0.2 ~ 0.4MPa), ngeli xesha iyunithi iya kusebenza phantsi komgangatho ophantsi. uxinzelelo lwasemva kwaye ugcine ubume bokungabikho komthwalo.
Xa ukusetyenziswa kwegesi yomthengi kwanda kwaye uxinzelelo lwemibhobho yehla kwixabiso elichaziweyo, iyunithi iya kuqhubeka nokulayisha kunye nokusebenza.Ngeli xesha, ukuqala / ukukhulula i-valve ye-solenoid inamandla, umbhobho wokulawula awuqhutywa, kwaye i-valve yokungena yentloko yomatshini igcina ukuvulwa okukhulu phantsi kwesenzo sokufunxa i-vacuum.Ngale ndlela, umatshini ulayisha ngokuphindaphindiweyo kwaye ukhuphe ngokuhambelana nokutshintshwa kokusetyenziswa kwegesi ekupheleni komsebenzisi.Inqaku eliphambili lendlela yokulawula ukulayisha / ukukhupha kukuba i-valve yokungena ye-injini engundoqo inamazwe amabini kuphela: ivule ngokupheleleyo kwaye ivalwe ngokupheleleyo, kwaye imeko yokusebenza yomatshini ineendawo ezintathu kuphela: ukulayishwa, ukukhulula, kunye nokuvala ngokuzenzekelayo.
Kubathengi, umoya ocinezelekileyo uvumelekile kodwa akwanelanga.Ngamanye amazwi, ukufuduka kwe-compressor yomoya kuvunyelwe ukuba kukhulu, kodwa kungabi ncinane.Ngoko ke, xa umthamo wokukhupha weyunithi mkhulu kunokusetyenziswa komoya, iyunithi ye-compressor yomoya iya kuthululwa ngokuzenzekelayo ukuze igcine ibhalansi phakathi komthamo wokukhupha kunye nokusetyenziswa komoya.
2. Ulawulo lwe-suction throttling
Indlela yokulawula i-suction throttling ilungisa umthamo wokungenisa umoya we-compressor ngokusetyenziswa komoya okufunwa ngumthengi, ukuze kufezekiswe ukulingana phakathi kokubonelela kunye nemfuno.Amacandelo aphambili abandakanya ii-valve ze-solenoid, izilawuli zoxinzelelo, ii-valve zokungena, njl. Xa ukusetyenziswa komoya kufana nomthamo olinganisiweyo wokukhupha weyunithi, i-valve yokungena ivulwe ngokupheleleyo, kwaye iyunithi iya kuqhuba phantsi komthwalo opheleleyo;Ubungakanani bomthamo.Umsebenzi wendlela yokulawula i-suction throttling ifakwe ngokulandelanayo kwiimeko ezine zokusebenza kwinkqubo yokusebenza kweyunithi ye-compressor kunye noxinzelelo olusebenzayo lwe-8 ukuya kwi-8.6 bar.
(1) Umqathango wokuqalisa 0～3.5bar
Emva kokuba iyunithi ye-compressor iqaliswe, i-valve yokungena ivaliwe, kwaye uxinzelelo kwi-oil-gas separator tank lusungulwa ngokukhawuleza;xa ixesha elibekiweyo lifikelelwe, liya kutshintshela ngokuzenzekelayo kwisimo somthwalo ogcweleyo, kwaye ivalve yokungena ivulwe kancinci ngokufunxa ivacuum.
(2) Imeko yokusebenza eqhelekileyo 3.5～8bar
Xa uxinzelelo kwinkqubo ludlula i-3.5bar, vula ivalve yoxinzelelo oluncinci ukuvumela umoya ocinezelweyo ungene kumbhobho wokuhambisa umoya, ibhodi yekhompyuter ibeka iliso kuxinzelelo lwemibhobho ngexesha langempela, kwaye ivalve yokungena emoyeni ivulwe ngokupheleleyo.
(3) Ukulungiswa komthamo womoya imeko yokusebenza 8～8.6bar
Xa uxinzelelo lombhobho ludlula i-8bar, lawula indlela yomoya ukulungelelanisa ukuvuleka kwevalve yokungena ukulinganisela umthamo wokukhupha kunye nokusetyenziswa komoya.Ngeli xesha, uluhlu lohlengahlengiso lomthamo wokukhupha luyi-50% ukuya kwi-100%.
(4) Isimo sokukhulula - uxinzelelo ludlula i-8.6bar
Xa ukusetyenziswa kwerhasi efunekayo kuncitshisiwe okanye kungekho gesi ifunekayo, kwaye uxinzelelo lombhobho ludlula ixabiso elibekiweyo le-8.6bar, isiphaluka solawulo segesi siya kuvala ivalve yokungena kwaye ivule ivalve yokukhupha umoya ukukhulula uxinzelelo kwitanki yokwahlula i-oyile-gesi. ;iyunithi isebenza kuxinzelelo oluphantsi kakhulu oluphantsi, ukusetyenziswa kwamandla kuyancipha.
Xa uxinzelelo lombhobho lwehla kwi-set low pressure, i-air circuit control ivala i-valve ye-vent, ivula i-valve yokungena, kwaye iyunithi itshintshela kwimeko yokulayisha.
Ukulawulwa kwe-suction throttling kulungelelanisa umthamo womoya wokungena ngokulawula ukuvulwa kwevalve yokungena, ngaloo ndlela kuncitshiswe ukusetyenziswa kwamandla e-compressor kunye nokunciphisa ukuphindaphinda kokulayisha rhoqo / ukukhulula, ngoko kunempembelelo ethile yokonga amandla.
3. Ulawulo lolawulo lwesantya soguqulo rhoqo
Ulawulo lohlengahlengiso lwesantya seCompressor kukulungelelanisa ukufuduswa ngokutshintsha isantya semoto yokuqhuba, emva koko uhlengahlengise isantya secompressor.Umsebenzi wenkqubo yohlengahlengiso lomthamo womoya wecompressor yokuguqulwa kwamaza kukutshintsha isantya semoto ngoguqulo lwamaza ukuze ihambelane nemfuno yomoya eguqukayo ngokobungakanani bokusetyenziswa komoya komthengi, ukuze kuphunyezwe ibhalansi phakathi konikezelo kunye nemfuno. .
Ngokweemodeli ezahlukeneyo zeyunithi nganye yoguqulo lwamaza, seta ubuninzi obuphuma rhoqo kwisiguquli sefrikhwensi kunye nesantya esiphezulu semoto xa iyunithi yendalo isebenza ngokwenene.Xa ukusetyenziswa komoya komthengi kulingana nokufuduswa okulinganiselweyo kweyunithi, iyunithi yokuguqula i-frequency iya kulungelelanisa i-frequency ye-frequency conversion motor ukunyusa isantya se-injini engundoqo, kwaye iyunithi iya kuqhuba phantsi komthwalo opheleleyo;I-frequency inciphisa isantya se-injini engundoqo kwaye inciphisa umoya wokungenisa ngokufanelekileyo;xa umthengi eyeka ukusebenzisa igesi, i-frequency ye-motor frequency frequency iyancitshiswa ibe yincinci, kwaye ngexesha elifanayo i-valve yokungena ivaliwe kwaye akukho kungena kuvunyelwe, iyunithi ikwimeko engenanto kwaye isebenza phantsi koxinzelelo olusezantsi. .
Amandla alinganisiweyo emoto yokuqhuba ene-compressor variable frequency unit azinzile, kodwa amandla okwenene e-shaft emoto ahambelana ngokuthe ngqo nomthwalo kunye nesantya.Iyunithi ye-compressor ithatha ukulawulwa kwesantya sokuguqulwa kwesantya, kwaye isantya sincitshisiwe ngexesha elifanayo xa umthwalo uyancipha, onokuthi uphucule kakhulu ukusebenza kakuhle ngexesha lokusebenza komthwalo wokukhanya.
Xa kuthelekiswa ne-industrial frequency compressors, i-inverter compressors kufuneka iqhutywe yi-inverter motors, ixhotyiswe ngee-inverters kunye neekhabhathi zokulawula umbane ezihambelanayo, ngoko ke iindleko ziya kuba phezulu.Ke ngoko, iindleko zokuqala zotyalo-mali zokusebenzisa i-compressor eguquguqukayo eguquguqukayo iphezulu kakhulu, isiguquli esijikelezayo ngokwaso sinosetyenziso lwamandla kunye nokutshatyalaliswa kobushushu kunye nezithintelo zokungena komoya zomguquli wefrequency, njl. ngokubanzi, kwaye isiguquli rhoqo sikhethwa phantsi komthwalo ophantsi ngokwentelekiso.kuyimfuneko.
Iinzuzo eziphambili ze-inverter compressors zezi zilandelayo:
(1) Isiphumo esicacileyo sokonga amandla;
(2) Umsinga wokuqalisa uncinci, kwaye impembelelo kwigridi incinci;
(3) Uxinzelelo oluzinzileyo lokukhupha;
(4) Ingxolo yeyunithi iphantsi, i-frequency yokusebenza ye-motor iphantsi, kwaye akukho ngxolo evela ekulayisheni rhoqo kunye nokukhulula.
4. Isilayidi sokulungelelaniswa komthamo oguquguqukayo wevalve
Umgaqo osebenzayo wendlela yokulawula umthamo wevalve etyibilikayo yile: ngokusebenzisa indlela yokutshintsha umthamo osebenzayo woxinzelelo kwigumbi loxinzelelo lwenjini ephambili yecompressor, ngaloo ndlela ulungelelanisa ukufuduswa kwecompressor.Ngokungafaniyo nolawulo lwe-ON/OFF, ulawulo lwe-suction throttling kunye nolawulo lokuguqulwa kwamaza, zonke ziphantsi kolawulo lwangaphandle lwe-compressor, indlela yokulungelelanisa i-valve eguquguqukayo kufuneka itshintshe isakhiwo se-compressor ngokwayo.
Ivalve yesilayidi yohlengahlengiso lwevolumu yinto esetyenziswayo ukulungelelanisa ukuhamba kwevolumu ye-screw compressor.Umatshini owamkela le ndlela yokulungelelanisa unesakhiwo sevalve yesilayidi esijikelezayo njengoko kuboniswe kuMzobo 1. Kukho i-bypass ehambelana ne-spiral shape ye-rotor eludongeni lwe-cylinder.imingxuma apho iigesi zinokuphuma khona xa zingagqunywanga.Ivalve yesilayidi esetyenzisiweyo ikwabizwa ngokuba yi-“screw valve”.Umzimba wevalvu ukwimilo ye-spiral.Xa ijikeleza, inokuvala okanye ivule umngxuma wokudlula odityaniswe negumbi loxinzelelo.
Xa ukusetyenziswa komoya womthengi kuncipha, ivalve yesijivu iyajika ivule umngxuma wokudlula, ukuze inxalenye yomoya orholeyo ibuyele emlonyeni ngomngxuma odlulayo osemazantsi egumbi loxinzelelo ngaphandle kokucinezelwa, nto leyo elingana nokunciphisa Ubude beskrufu esibandakanyekayo kuxinzelelo olusebenzayo.Umthamo osebenzayo osebenzayo uyancitshiswa, ngoko ke umsebenzi wokunyanzeliswa osebenzayo uyancipha kakhulu, uqaphela ukonga amandla kumthwalo oyingxenye.Esi sikimu soyilo sinokubonelela ngohlengahlengiso oluqhubekayo lokuhamba kwevolumu, kunye noluhlu lohlengahlengiso lwamandla olunokuthi luphunyezwe ngokubanzi yi-50% ukuya kwi-100%.
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