Ukucindezela igesi kuyinqubo yokusebenzisa amandla angaphandle ukuze kwenziwe amandla angase abe nomfutho wokuthola igesi. I-compressor ingumdali wegesi ecindezelwe. Ngakho-ke, ukusebenza okuyisisekelo kwe-screw air compressor air end akuhlukaniseki kulezi zici ezine: ukucindezela, ukugeleza, amandla kanye namandla athile.
Ukusebenza okuyisisekelo kwe-screw air compressor air end - ingcindezi yomoya
Ukuthola amandla okucindezela umoya ocindezelwe kuyindlela eyisisekelo yokusebenza kwama-compressor omoya, futhi ama-screw air compressor awahlukile. Injini eyinhloko yama-screw air compressors ikhulisa ingcindezi yomoya ngokusebenzisa amandla angaphandle. Uma ingcindezi iphakeme, kusetshenziswa amandla amaningi, futhi kulapho izidingo zenjini eyinhloko ziphakama khona. Ngokuvamile sihlukanisa ama-air compressor ngezigaba ezine ngokuya ngengcindezi yokukhipha:
Ukucindezela okuphansi: 0.2 ~ 1.0MPa
Ingcindezi ephakathi: 1.0 ~ 10MPa
Umfutho ophezulu: 10 ~ 100MPa
Ukucindezela okuphezulu kakhulu: ngaphezu kwe-100MPa
Ama-screw air compressor ngokuvamile anengcindezi yokukhipha engu-0.2 ~ 4.0MPa, okusho ukuthi ukusebenza kwawo, ukusebenziseka kwawo kanye nomnotho wawo kungcono kuleli banga. Lokhu kunqunywa yisakhiwo kanye nendlela yokusebenza ye-compressor air end, futhi futhi yisigaba sokucindezela esinesidingo esikhulu semakethe.
Umfutho womoya ocindezelwe ohlinzekwa yi-air compressor ulinganiswa kakhulu ngesilinganiso somfutho, okuyisilinganiso somfutho wokukhipha i-Pd kumfutho wokudonsa i-Ps. Uma isilinganiso siphezulu, kulapho umfutho wokukhipha uphakama khona.
Ifomula ye-ε=Pd/Ps (6)
Kunesilinganiso sokucindezela kwangaphakathi kanye nesilinganiso sokucindezela kwangaphandle kwenjini eyinhloko ye-screw air compressor.
Isilinganiso sokucindezela kwangaphakathi: isilinganiso sokucindezela kumthamo wamazinyo phakathi kwenjini eyinhloko nomfutho wokumunca, okunqunywa indawo kanye nesimo sezimbobo zokumunca kanye nokukhipha umoya;
Isilinganiso sokucindezela kwangaphandle: isilinganiso sokucindezela epayipini lokukhipha umoya nengcindezi yokumunca. Izingcindezi zokumunca kanye nokucindezela kokukhipha umoya ezidingekayo ezimweni zokusebenza noma ukugeleza kwenqubo.
Uma isilinganiso sokucindezela kwangaphakathi ≠ isilinganiso sokucindezela kwangaphandle, injini eyinhloko izosebenzisa amandla amaningi; uma isilinganiso sokucindezela kwangaphakathi = isilinganiso sokucindezela kwangaphandle, injini eyinhloko isesimweni esihle kakhulu.
Ngenjini eyinhloko ye-screw air compressor, lapho injini eyinhloko, izinga lokushisa elizungezile, ingcindezi yokumunca, isivinini senjini eyinhloko nezinye izici zifana, lapho ingcindezi yokukhipha iphakama, kulapho ukusetshenziswa kwamandla kukhuphuka khona.
Ukusebenza okuyisisekelo kwe-screw air compressor air end - flow
Ukugeleza kuvame ukwakhiwa ukugeleza kobuningi kanye nokugeleza komthamo. Ezimisweni zemboni kanye nezindinganiso zezinhlelo ze-air compressor, sivame ukusebenzisa ukugeleza komthamo njengendlela yokulinganisa ukugeleza, okubizwa nangokuthi ivolumu yokukhipha noma ukugeleza kwegama lepuleti ezweni lakithi: ngaphansi kwengcindezi yokukhipha edingekayo, umthamo wegesi okhishwa yi-air compressor ngesikhathi seyunithi uguqulwa ube yisimo sokungenisa, okungukuthi, inani levolumu yengcindezi yokumunca epayipini lokungenisa lesigaba sokuqala kanye nokushisa kokungenisa kanye nomswakama. Iyunithi yi-m3/min. Ukugeleza komthamo kuhlukaniswe ukugeleza komthamo wangempela kanye nokugeleza komthamo ojwayelekile.
Ngokuvamile, amasampula, izinketho, kanye nama-nameplate omshini asebenzisa ukugeleza kwevolumu okujwayelekile. Ngenxa yemboni, isifunda kanye nokusetshenziswa, ukugeleza kwevolumu okujwayelekile esidingweni semakethe yomoya ocindezelwe kunezincazelo ezimbili ngokuya ngomehluko esimweni esijwayelekile (izinga lokushisa, ingcindezi kanye nezingxenye):
Isimo esijwayelekile yingcindezi P=101.325KPa; izinga lokushisa elijwayelekile T=0℃; umswakama ohlobene ungu-0%. Kuvame ukutholakala kumadokhumenti egesi yezimboni, embonini yamakhemikhali noma ekubhideni, okubizwa ngokuthi “isikwele esijwayelekile”, ngokuvamile esinophawu lwefomula “VN” kanye neyunithi engu-Nm3/min.
Isimo esijwayelekile yingcindezi P = 101.325KPa; izinga lokushisa elijwayelekile T = 20℃; umswakama ohlobene ngu-0%. Ngokuvamile kusetshenziswa ezindinganisweni zemboni yomoya ocindezelwe futhi ubizwa ngokuthi “izimo zokusebenza ezijwayelekile”. Uphawu luvame ukuba “V” kanti iyunithi ingu-m3/min.
Ngokuvamile, izinga lokugeleza kwevolumu elijwayelekile elisetshenziswa embonini yethu ye-air compressor yilona lokugcina. Ukuguqulwa kwezinga lokugeleza kwevolumu ngaphansi kwalezi zimo ezimbili kungabalwa ngefomula:
V(m3/min)=1.0732VN(Nm3/min) Ifomula (7)
Ngenjini eyinhloko ye-screw air compressor, ngaphansi kwezinye izimo ezifanayo, uma ibanga eliphakathi kwe-rotor likhulu, izinga lokugeleza kwevolumu yalo likhulu; uma ijubane lenjini eyinhloko liphakeme, izinga lokugeleza kwevolumu yalo likhulu.
Izinga lokugeleza kwevolumu ye-V = ivolumu yokucindezela injini enkulu ye-qv × isivinini sekhanda le-n Ifomula (8)
qv=CΨqv0Z1n=CΨCn1nλD3 Ifomula (9)
Lapho u-Z1——inani lamazinyo e-rotor yesilisa; n——isivinini se-rotor yesilisa; λ——isilinganiso se-rotor; D——ububanzi bangaphandle be-rotor yesilisa.
Ngakho-ke, ngenxa yokonga, sivame ukunciphisa izinhlobo zezinjini eziyinhloko futhi singalungisa ivolumu yokukhipha umoya we-air compressor ngokunquma isivinini senjini eyinhloko ukuze kuhlangatshezwane nesidingo semakethe.
Kodwa-ke, ijubane lenjini enkulu ye-screw compressor alikwazi ukuba phezulu kakhulu, ngokuvamile liphakathi kuka-800 no-10,000 rpm. Ngakho-ke, umenzi wenjini enkulu ye-screw wakha izinjini ezinkulu ezinebanga lokugeleza elihlukile ukuze kuhlangatshezwane nezidingo zokugeleza kwe-screw compressor.
Amandla kanye nokubalwa kwe-air compressor air end ethile
Amandla omgodi asetshenziswa ukugeleza kwevolumu ngeyunithi ngayinye ngesikhathi lapho ukuphela komoya we-compressor yomoya kusebenza. Iyunithi yamandla athile yi: kW/(m3/min).
Ifomula yokubala imi kanje:
Isiphelo somoya se-SER = Isiphelo somoya se-Pd/qv Ifomula (10)
Isiphelo somoya se-Pd – amandla omgodi womoya;
qv – ukugeleza kwevolumu yokuphela komoya ngesikhathi seyunithi ngayinye
Inani lamandla ayo elithile yileli:
I-SER air end = 117/23.1 = 5.065 (kW/(m3/min))
Uma inani lamandla athile e-screw air compressor air end lincane, ukusetshenziswa kwamandla kwayo kwehla futhi ukusebenza kahle kwe-air end kungcono. Ngaphansi kwesimo sokugeleza okungaguquki, ingcindezi yokukhipha iphezulu, amandla omgodi we-air end aphezulu, ngakho-ke inani lamandla ayo athile likhula.
I-screw compressor ngayinye inenani lamandla eliqondile elifanele, elihlobene nesivinini senjini eyinhloko. Uma ijubane lenjini eyinhloko liphansi kakhulu, ukuvuza kuyanda, ivolumu yegesi iyancipha, futhi inani lamandla eliqondile liba phezulu; uma ijubane lenjini eyinhloko liphezulu kakhulu, ukungqubuzana kuyanda, amandla omgodi ayanda, futhi inani lamandla eliqondile liba phezulu. Kodwa kumele kube nejubane elifanele elenza inani lamandla eliqondile libe phansi kakhulu. Yingakho kungafanele ngempela ukusho ukuthi lapho injini eyinhloko inkulu, kulapho yonga khona amandla amaningi.
Uma siklama ama-screw compressor nama-variable frequency compressor, kumele siqinisekise ikhwalithi ngenkathi sicabangela nomnotho, ukulinganisa kanye nokuguquguquka kwenjini eyinhloko. Ngakho-ke, sizosebenzisa ijika lamandla athile enjini eyinhloko ukuklama nokuthuthukisa ama-screw compressor anezingcindezi nokugeleza okuhlukile.
Isikhathi sokuthunyelwe: Julayi-17-2024
