Vacuum Emulsifying Mixer Ngumatshini non-standard. Umxubi ngamnye ulungiselelwe ngokweemfuno ezithile zomthengi. Xa ukhetha i-Vacuum Mixer Homogenizer, nantsi imiba ephambili ekufuneka ithathelwe ingqalelo ukuqinisekisa ukuba iVacuum mixer ihlangabezana neemfuno kunye neemfuno zesicelo. Esi sikhokelo sichaza izinto eziphambili ezinokuthi ziqwalaselwe xa kuthengwa i-Vacuum Emulsifying Mixer, ehlanganisa iinkcukacha zobugcisa be-Vacuum Emulsifying Mixer, ukuhambelana kwezinto eziphathekayo, ukulinganisa, ukukhululeka kokusebenza kunye nokugcinwa, amandla okuzenzekelayo, iimpawu zokhuseleko kunye nokusebenza kakuhle kweendleko.
a. Izakhono ze-vacuum homogenizer cream mixer
I-1.Ukuxuba Amandla kunye nesantya: Ukumisela amandla afunekayo okuxuba ukhilimu kunye nesantya ngokusekelwe kwi-viscosity kunye ne-particle size yezixhobo ezicutshungulwa kwi-vacuum homogenizer cream mixer, Isantya esiphezulu kunye namandla ombane anokufuneka. Ukuze ufikelele kwiimfuno zenkqubo yekhrimu yomthengi, isantya somxube wekhrimu kufuneka sibe ngu-0-65RPM, isantya se-Homogenization kufuneka sibe ngu-0-3600rpm.kwimveliso ekhethekileyo yekhrimu kufuneka i-0-6000rpm, i-vacuum homogenizer cream mixer.
Ummiselo wesantya ufuna ukusetyenziswa kwesantya esiguquguqukayo sokuqhuba isantya esisezantsi
2..Isenzo sokucheba: Vavanya izakhono zokucheba ze-vacuum homogenizer cream mixer ukuqinisekisa ukonakala okusebenzayo kwamasuntswana kunye ne-emulsification yolwelo lwekhrimu. Isantya sentloko seHomogenizer kufuneka sibe yi-0-3600RPM yolawulo lwesantya esingenanyathelo
3.Inqanaba leVacuum: Qwalasela inqanaba lokucoca elifunwayo lenkqubo yomxube we-vacuum homogenizer cream. Amanqanaba aphezulu e-vacuum anokunceda ukususa amaqamza omoya amaninzi kunye nokuthintela i-oxidation. Ngokubanzi, inqanaba levacuum yeVacuum Emulsifying Mixer kufuneka ibe -0.095Mpa ukuhlangabezana neemfuno.
Model | Eumthamo osebenzayo | Hinjini ye-omogenizer | Syemoto | Vimpum ye-acuum | Hukutya amandla(KW) | |||||
KW | r/min (ukhetho1) | r/min (ukhetho2) | KW | r/min | KW | Lyenza vacuum | Sukufudumeza iqela | Eukufudumeza i-lectric | ||
I-FME-300 | 300 | 5.5 |
0-3300
|
0-6000 | 1.5 | 0-65 | 2.2 | -0.085 | 32 | 12 |
I-FME-500 | 500 | 5.5 | 2.2 | 0-65 | 2.2 | -0.085 | 45 | 16 | ||
I-FME-800 | 800 | 7.5 | 4 | 0-60 | 4 | -0.08 | 54 | 25 | ||
I-FME-1000 | 1000 | 11 | 5.5 | 0-60 | 4 | -0.08 | 54 | 25 | ||
I-FME-2000 | 2000 | 18.5 | 7.5 | 0-55 | 5.5 | -0.08 | 63 | 25 | ||
I-FME-3000 | 3000 | 22 | 7.5 | 0-55 | 5.5 | -0.08 | 72 | 25 |
1.Ubungakanani beBatch: Khetha umatshini wokufunxa i-vacuum emulsifying umthamo ohambelana nobungakanani bebhetshi efunekayo. Qinisekisa ukuba umatshini wokufaka i-emulsifying unokuphatha zombini iibhetshi ezincinci ze-R&D kunye nokuqhutywa kwemveliso emikhulu. emulsifying umatshini ixesha ibhetshi enye malunga 4-5 iiyure
2.I-Scalability: Jonga umatshini wokulinganisa onokunyuswa ngokulula okanye wehle ukuze ulungele ukukhula kwexesha elizayo okanye utshintsho kwimithamo yemveliso.
3.Ulawulo lobushushu kunye neendlela zokufudumeza
Ukuvavanya amandla okulawula ukushisa kumatshini we-emulsifying , kubandakanywa ukukwazi ukutshisa okanye ukupholisa iitanki ze-vacuum ngexesha lokucubungula. Oku kubalulekile ekugcineni umgangatho kunye nentembeko yezithako ezingevani nobushushu.
Model | Eumthamo osebenzayo | Ubuncinci umthamo (L) | Umthamo omkhulu (L) |
I-FME-300 | 300 | 100 | 360 |
I-FME-500 | 500 | 150 | 600 |
I-FME-800 | 800 | 250 | 1000 |
I-FME-1000 | 1000 | 300 | 1200 |
I-FME-2000 | 2000 | 600 | 2400 |
I-FME-3000 | 3000 | 1000 | 3600 |
- Isixube seVacuum Emulsifier sinezifudumezi zoMbane ezisetyenziselwa umthamo womxube ongaphantsi kweelitha ezingama-500 Ngokubanzi, sinezi mpawu zilandelayo:
a. Ukusebenza okuphezulu kunye nokonga amandla
Isantya sokufudumeza ngokukhawuleza: I-Vacuum Emulsifier Mixer's Ukufudumeza koMbane kunokuguqula ngokukhawuleza amandla ombane kumandla ashushu, ukwenzela ukuba ubushushu bangaphakathi bento eshushu bunyuke ngokukhawuleza, buphucule ukusebenza kakuhle kwemveliso.
b. Ukusebenza okuphezulu kwe-thermal: Kuba ubushushu be-vacuum mixer iveliswa ngaphakathi kwento eshushu, ilahleko yobushushu iyancitshiswa, ngoko ke ukusebenza kakuhle kwe-thermal kuphezulu.
c. Kulula ukulawula ubushushu obuchanekileyo: Inkqubo yokufudumala yombane ye-Emulsifier Mixer inokufikelela kulawulo oluchanekileyo lobushushu kunye nohlengahlengiso ukuhlangabezana nobushushu obuchaziweyo beenkqubo ezahlukeneyo.
d. Iqondo eliphezulu lokuzisebenzela: iVacuum Emulsifier Mixer edityaniswe nobuchwepheshe bolawulo lwangoku njengePLC (Programmable Logic Controller), uMxube unokuqonda ulawulo oluzenzekelayo lwenkqubo yokufudumeza kunye nokunciphisa ungenelelo lwezandla.
a.Akukho ngcoliseko: Akukho rhasi yenkunkuma, inkunkuma eshiyekileyo okanye ezinye izinto ezingcolisa umoya zenziwa ngexesha lenkqubo yomxube we-vacuum homogenizer cream, i-homogenizer mixer ihlangabezana neemfuno zokhuseleko lokusingqongileyo.
b.Gcina ucocekile: Ukufudumeza kwindawo yevacuum kunokunciphisa umngcipheko we-oxidation kunye nokungcoliseka, umxube ugcine into eshushu icocekile.
c. Umthamo wokuqhuba owomeleleyo: ivacuum homogenizer cream mixers yeemodeli ezahlukeneyo kunye neenkcukacha zinamandla okusebenza ahlukeneyo ukuhlangabezana neemfuno zemveliso yezikali ezahlukeneyo.
Xa iVacuum Mixer Homogenizer isebenzisa ukufudumeza komphunga, inezi mpawu zilandelayo:
1. Ukufudumala okufanayo kwi-vacuum homogenizer cream mixer
• Ukufudumeza umphunga kwi-vacuum homogenizer cream mixer inokufikelela ukufudumeza okufanayo kwemathiriyeli
isitya sokuxuba, ukuphepha utshintsho kwiipropati eziphathekayo ezibangelwa ukushisa kwendawo okanye ukushisa okungalinganiyo. ukuphucula ukusebenza kakuhle kokufudumeza
b. Ukusebenza okuphezulu kunye nokonga amandla, Umphunga ngumthombo wamandla acocekileyo kunye nokusebenza kakuhle kwe-thermal. vacuum homogenizer cream mixer
ayivelisi izinto ezinobungozi ngexesha lenkqubo yokufudumala kwaye ihlangabezana neemfuno zokusingqongileyo. Kwangelo xesha, iinkqubo zokufudumeza umphunga ze-homogenizer cream zihlala zixhotyiswa ngezixhobo zokubuyisela ubushushu ukuze ziphinde zisebenzise ubushushu obusetyenzisiweyo ukuphucula ukusebenza kakuhle kwamandla.
c. Kulula ukulawula iinkqubo zokufudumeza umphunga we-vacuum homogenizer mixer zihlala zixhotyiswe ngezixhobo zokulawula ubushushu, i-vacumm mixer inokulawula ngokuchanekileyo ubushushu bokufudumala ukuhlangabezana neemfuno zobushushu beenkqubo ezahlukeneyo. Ngokulungelelanisa ukuhamba kunye noxinzelelo lomphunga, inkqubo yokufudumeza i-vacuum cream mixer inokulawulwa lula.
d: Ukhuseleko oluphezulu lwe-vacuum homogenizer umxube wokufudumeza umphunga we-steam zikhuselekile ngenxa yokuba umphunga ujikeleziswa kwinkqubo evaliweyo kwaye akunakwenzeka ukuba ubangele iingozi zokhuseleko kwi-vacuum homogenizer cream mixer efana nokuvuza kunye nokudubula. Ngexesha elifanayo, inkqubo idla ngokuxhotyiswa ngezixhobo zokhuseleko ezifana ne-valve yokukhusela kunye ne-pressure gauges ukuqinisekisa ukhuseleko lwezixhobo ngexesha lokusebenza.
e.Uluhlu olubanzi lwezicelo: Ukufudumala komphunga kulungele ukufudumeza izinto ezahlukeneyo ezifanelekileyo kwi-vacuum homogenizer cream mixer kubandakanywa izinto ezine-viscosity ephezulu, i-agglomerate elula, kunye ne-oxidize elula. Ukufudumala kwe-Steam kwindawo ye-vacuum kunokunciphisa ngakumbi umngcipheko we-oxidation kunye nokungcoliswa kwezinto kunye nokuphucula umgangatho wemveliso.6. Ukuguquguquka okunamandla
f.Inkqubo yokufudumala i-steam inokuguqulwa ngokuguquguqukayo ngokweemfuno zemveliso.xa ukunyuka kweqondo lokushisa ngokukhawuleza kuyadingeka, ukuhamba kwe-steam kunye noxinzelelo kunokunyuswa; xa ubushushu obuqhubekayo bufuneka, ukunikezelwa komphunga kunokulungiswa ukuze kugcinwe ubushushu obuzinzile.
Isishwankathelo, xa i-Vacuum Mixer Homogenizer isebenzisa ukufudumeza komphunga, ineempawu zokufudumeza okufanayo, ukusebenza kakuhle kunye nokugcinwa kwamandla, ukulawula okulula, ukhuseleko oluphezulu, uluhlu olubanzi lwesicelo kunye nokuguquguquka okunamandla.
1.Kukho uyilo olubini lwesakhiwo se-vacuum homogenizer kwimarike. Umatshini we-vacuum emulsifying osisigxina kunye ne-hydraulic ephakamisa i-vacuum homogenizer
I-Hydraulic yokuphakamisa i-vacuum homogenizer ineentlobo ezimbini: i-cylinder enye kunye ne-double-cylinder yokuphakamisa i-vacuum homogenizer.
a.Single-cylinder vacuum homogenizer isetyenziswa ikakhulu koomatshini ngaphantsi kwe 500L
b.I-cylinder yokunyusa i-vacuum homogenizer (i-vacuum homogenizer) ineenzuzo ezininzi, i-homogenizer ibonakaliswa ikakhulu kwezi mpawu zilandelayo.
Idizayini yokuphakamisa i-cylinder enye: Isakhiwo sokuphakamisa i-cylinder enye yenza i-vacuum homogenizer idibanise ngakumbi, kwaye kulula ukuyifaka kunye nokusetyenziswa kwiindawo ezincinci.
c. Kulula ukusebenza: I-cylinder ephakamisa i-vacuum homogenizer elawulwayo yokuphakamisa i-vacuum homogenizer ilula, kwaye abasebenzisi banokwenza lula imisebenzi yokuphakamisa i-homogenizer ngephaneli yokulawula, ephucula ukusebenza kakuhle.
d. I-homogenization esebenzayo kunye ne-emulsification
I-homogenization esebenzayo: I-cylinder enye ephakamisa i-vacuum homogenizer ihlala ixhotyiswe ngenkqubo ye-homogenization esebenzayo, i-homogenizer inokufezekisa i-homogenization esebenzayo kunye nokufaka izinto ezisemgangathweni ukuqinisekisa umgangatho wemveliso.
f,Ukusetyenziswa okubanzi: Ifanelekile kwiintlobo ngeentlobo zemathiriyeli, kubandakanywa ulwelo, ukumiswa, umgubo, ulwelo lwe-viscous, njl. njl., ukuhlangabezana neemfuno zamashishini ahlukeneyo.
Iparamitha enye ye-hydraulic vacuum vacuum homogenizer
Model | Eumthamo osebenzayo | Emulsify | Umqhushumbisi | Vacuum impompo | Hukutya amandla | ||||
KW | r/min | KW | r/min | KW | Lyenza vacuum | Sukufudumeza iqela | Eukufudumeza i-lectric | ||
I-FME-10 | 10 | 0.55 | 0-3600 | 0.37 | 0-85 | 0.37 | -0.09 | 6 | 2 |
I-FME-20 | 20 | 0.75 | 0-3600 | 0.37 | 0-85 | 0.37 | -0.09 | 9 | 3 |
I-FME-50 | 50 | 2.2 | 0-3600 | 0.75 | 0-80 | 0.75 | -0.09 | 12 | 4 |
I-FME-100 | 100 | 4 | 0-3500 | 1.5 | 0-75 | 1.5 | -0.09 | 24 | 9 |
I-FME-150 | 150 | 4 | 0-3500 | 1.5 | 0-75 | 1.5 | -0.09 | 24 | 9 |
I-Double cylinder Vacuum Homogenizer isetyenziswa ikakhulu koomatshini abakhulu kune-500L
1. Ukuphakanyiswa kwamahhala kunye nokusetha kwakhona: I-double-cylinder hydraulic lifting system ye-Vacuum Homogenizer inokuphakamisa ngokucokisekileyo ikhava yembiza kwaye yenze umsebenzi wokubuyisela i-pot inverted, i-Homogenizer iphucula ukuguquguquka kunye nokulula kokusebenza.
2. Ukuzinza okuqinileyo: Ukunyakaza okwenziwa yinkqubo ye-hydraulic ngexesha lokunyusa kuncitshiswa njengoko i-Vacuum Homogenizer isebenza, ukuphepha ukugubha kwezixhobo ngexesha lokusebenza, kunye nokuqinisekisa ukuzinza kunye nokhuseleko lwenkqubo yokuphakamisa.
3. Umthamo oqinileyo wokuthwala: Inkqubo yokunyusa i-hydraulic ye-Vacuum Homogenizer idla ngokuba nomthamo oqinileyo wokuthwala kwaye inokuhlangabezana neemfuno zokuphakamisa izinto ezinzima.
4. Ulondolozo olulula: Ukugcinwa kwenkqubo ye-hydraulic ye-vacuum mixer kulula. Ukuba icandelo linengxaki, ngokuqhelekileyo kuyimfuneko kuphela ukutshintsha icandelo ukusombulula ingxaki.
5. I-vacuum degassing kunye nonyango lwe-aseptic
a.I-vacuum degassing: I-Homogenizer ye-Vacuum isebenza kwinqanaba le-vacuum, isusa ngokufanelekileyo ama-bubbles kwizinto eziphathekayo kunye nokuphucula ukuzinza kunye nokubonakala komgangatho wemveliso.
b. Unyango lwe-Aseptic: Imekobume ye-Vacuum Homogenizer ikwanceda ukuhlangabezana neemfuno ze-aseptic, ngakumbi ezifanelekileyo kumashishini afana nokutya kunye namayeza kwiimeko zococeko.
Ipharamitha yenkqubo yokunyusela i-hydraulic cylinder kabini
Model | Eumthamo osebenzayo | Hinjini ye-omogenizer | Syemoto | Vimpum ye-acuum | Hukutya amandla | ||||
KW | r/min | KW | r/min | KW | Lyenza vacuum | Sukufudumeza iqela | Eukufudumeza i-lectric | ||
I-FME-300 | 300 | 5.5 | 0-3300 | 1.5 | 0-65 | 2.2 | -0.085 | 32 | 12 |
I-FME-500 | 500 | 5.5 | 0-3300 | 2.2 | 0-65 | 2.2 | -0.085 | 45 | 16 |
I-FME-800 | 800 | 7.5 | 0-3300 | 4 | 0-60 | 4 | -0.08 | 54 | 25 |
I-FME-1000 | 1000 | 11 | 0-3300 | 5.5 | 0-60 | 4 | -0.08 | 54 | 25 |
I-FME-2000 | 2000 | 18.5 | 0-3300 | 7.5 | 0-55 | 5.5 | -0.08 | 63 | 25 |
I-FME-3000 | 3000 | 22 | 0-3300 | 7.5 | 0-55 | 5.5 | -0.08 | 72 | 25 |
Oomatshini bokucoca i-vacuum emulsifying bohlobo olusisigxina babonelela ngeenzuzo ezininzi ngomatshini babenza ukuba bafuneke kakhulu kumashishini ahlukeneyo, kwizinto zokuthambisa, amayeza, kunye nokwenziwa kokutya. Ngezantsi ezinye zezibonelelo eziphambili zaba matshini,
a. UFanekiso lweMveliso olwandisiweyo kumatshini wokufunxa ivacuum emulsifying
Oomatshini be-vacuum emulsifying esisigxina baphucula kakhulu ukusebenza kakuhle kwemveliso xa kuthelekiswa neendlela zemveli okanye iinkqubo ze-semi-automatic. umatshini ngokuzenzekelayo inkqubo ye-emulsification, ukunciphisa ukungenelela ngesandla kunye neendleko zabasebenzi ngelixa uqinisekisa umphumo ohambelanayo.
b. Ukuphuculwa koMgangatho weMveliso
Ngokusebenza phantsi kweemeko ze-vacuum, aba matshini basusa umngcipheko wokungcoliswa kweengqungquthela zomoya okanye umswakama, uqinisekisa umgangatho ophezulu wemveliso.
c. Ukuguquguquka kunye nokwenza ngokwezifiso
Oomatshini be-vacuum emulsifying abasisigxina baguquguquka kakhulu kwaye banokulungiswa ukuze bahambelane neemfuno ezithile zemveliso. Banokuphatha uluhlu olubanzi lwezixhobo kunye nokuqulunqwa, ukusuka kwiikhrimu ezishinyeneyo ukuya kwi-lotion encinci, ezenza zilungele usetyenziso olwahlukeneyo kumashishini ahlukeneyo. Abavelisi banokuhlengahlengisa iiparamitha ezinje ngesantya sokuxuba, ubushushu, kunye nenqanaba levacuum ukuze baphucule inkqubo ye-emulsification kwiimfuno zabo ezizodwa zemveliso.
d. Ukusebenza kakuhle kwamandla kunye noLondolozo lweendleko
Aba matshini benzelwe ukusetyenziswa kwamandla, ukunciphisa ukusetyenziswa kwamandla ngexesha lokusebenza. Oku akupheleli nje ekubeni negalelo kwinkqubo yemveliso eluhlaza kodwa kukhokelela ekongiweni kweendleko ekuhambeni kwexesha. Ukongezelela, ukwakhiwa kwabo okuhlala ixesha elide kunye nokusebenza okuthembekileyo kuqinisekisa ukuchithwa okumbalwa kunye neemfuno zokugcinwa, ukunciphisa iindleko zokusebenza.
Ipharamitha yomatshini wokucoca ivacuum esisigxina
Model | Eumthamo osebenzayo | Hinjini ye-omogenizer | Syemoto | Vimpum ye-acuum | Hukutya amandla | ||||
KW | r/min | KW | r/min | KW | Lyenza vacuum | Sukufudumeza iqela | Eukufudumeza i-lectric | ||
I-FME-1000 | 1000 | 10 | 1400-3300 | 5.5 | 0-60 | 4 | -0.08 | 54 | 29 |
I-FME-2000 | 2000 | 15 | 1400-3300 | 5.5 | 0-60 | 5.5 | -0.08 | 63 | 38 |
I-FME-3000 | 3000 | 18.5 | 1400-3300 | 7.5 | 0-60 | 5.5 | -0.08 | 72 | 43 |
I-FME-4000 | 4000 | 22 | 1400-3300 | 11 | 0-60 | 7.5 | -0.08 | 81 | 50 |
I-FME-5000 | 5000 | 22 | 1400-3300 | 11 | 0-60 | 7.5 | -0.08 | 90 | 63 |
a.Izinto zoQhagamshelwano: Qinisekisa ukuba i-mixer homogenizer yenziwe ngezinto ezisemgangathweni ophezulu ezihambelana nezinto ezicutshungulwayo. kubandakanywa igumbi lokuxuba, ii-agitators, izitywina, kunye nawo nawaphi na amanye amalungu adibana nomxube.
b.I-Corrosion Resistance: Khetha izinto ezikwaziyo ukumelana nokudleka kunye nokuguga, ngakumbi ukuba umxube uqulethe izithako ezinobungozi okanye ezihlwayo.
b.Ukusebenza ngokulula kunye noLondolozo lwe-Vacuum Homogenizer
Ukucoca kunye noLondolozo: Qwalasela iimpawu zokuyila eziququzelela ukucocwa nokugcinwa kwezinto, ezifana neendawo ezikhutshwayo, iindawo ezigudileyo, kunye nokufikelela ngokulula kumacandelo abalulekileyo.
Izakhono zokuzenzekelakuba Vacuum Homogenizer
a.Ulawulo lweProgrammable: Khangela oomatshini abanolawulo olucwangcisiweyo oluvumela ukulungelelaniswa kokuxuba kunye ne-homogenization parameters.
b.Ii-Sensors kunye nokuHlola: Vavanya ukufumaneka kweenzwa kunye neenkqubo zokubeka iliso ezibonelela ngengxelo yexesha langempela kwiiparamitha zenkqubo ezifana neqondo lokushisa, i-vacuum level, kunye nesantya sokuxuba.
c.Ukudityaniswa kunye nezinye iiNkqubo: Cinga ikhono le-mixer homogenizer ukudibanisa nezinye izixhobo kunye neenkqubo kumgca wokuvelisa, njengokuzalisa kunye nokutywinwa koomatshini.
d. Iimpawu zoKhuseleko
1..Amaqhosha okumisa okuNgxamisekileyo: Qinisekisa ukuba umatshini uxhotyiswe ngamaqhosha okumisa okungxamisekileyo afikeleleke ngokulula ukumisa inkqubo xa kukho unxunguphalo.
2.Abalindi boKhuseleko kunye neeNdawo ezivaliweyo: Khangela oomatshini abanokhuseleko kunye neendawo ezivaliweyo ezikhusela abaqhubi kwiindawo ezihambayo kunye neengozi ezinokubakho.
3.Ukuthotyelwa kweMigangatho yoKhuseleko: Qinisekisa ukuba i-mixer homogenizer ihambelana nemigangatho efanelekileyo yokhuseleko kunye nemimiselo, njenge-CE, UL, okanye eminye imigangatho yamazwe ngamazwe.
1.Utyalo-mali lokuqala: Thelekisa iindleko zokuqala ze-homogenizer yomxube kunye nezinye iinketho ezikhoyo kwimarike. Qwalasela ibhalansi phakathi kweendleko kunye nokusebenza.
2.Iindleko zokuSebenza: Vavanya iindleko zokusebenza komatshini, kubandakanywa ukusetyenziswa kwamandla, iindleko zokulondoloza, kunye neendleko zokutshintshwa kwamalungu.
Yenza isishwankathelo
Ukukhetha i-Vacuum Mixer echanekileyo i-Homogenizer idinga ukuqwalaselwa ngokucokisekileyo kwezinto ezininzi, kubandakanywa neenkcukacha zobugcisa, ukuhambelana kwezinto eziphathekayo, ukulinganisa, ukukhululeka kokusebenza kunye nokugcinwa, amandla okuzenzekelayo, iimpawu zokhuseleko kunye neendleko ezifanelekileyo. Ngokuthathela ingqalelo le miba, abavelisi banokukhetha umatshini ohlangabezana neemfuno zabo ezithile kwaye ubancede bafezekise iinjongo zabo zokuvelisa.