Fanka wani nau'i ne na injina da ake amfani da shi don damfara da jigilar iskar gas. Daga mahangar canjin makamashi, wani nau'i ne na injina wanda ke canza makamashin injina na babban mai motsi zuwa makamashin iskar gas.
Bisa ga ka'idar rarraba ayyuka, ana iya raba magoya baya zuwa:
Turbofan – fan wanda ke danne iska ta hanyar jujjuya ruwan wukake.
· Maɓalli mai kyau - injin da ke matsawa da jigilar iskar gas ta canza ƙarar iskar.
Rarraba ta hanyar tafiyar iska:
Mai fanka Centrifugal – Bayan iskar ta shiga ma’aunin fanka axially, ana matse shi a ƙarƙashin aikin ƙarfin centrifugal kuma galibi yana gudana ta hanyar radial.
· Fannonin kwarara-axial - Iskar tana gudana axially zuwa cikin hanyar jujjuyawar ruwa. Saboda hulɗar tsakanin ruwa da iskar gas, iskar gas yana matsawa kuma yana gudana kusan a cikin axial shugabanci a kan cylindrical surface.
· fanka mai gauraye-Gas ɗin yana shiga cikin ruwan jujjuya a kusurwa zuwa babban ramin kuma yana gudana kusan tare da mazugi.
· Fannonin ratsawa – iskar gas ta ratsa cikin ruwan jujjuya kuma ana yin ta da ruwa don ƙara matsa lamba.
Rarraba ta babban ko ƙarancin samarwa (ƙididdige shi ta cikakken matsa lamba):
Ventilator - matsin lamba a ƙasa 112700Pa;
· busa - matsa lamba daga 112700Pa zuwa 343000Pa;
· kwampreso - matsin lamba sama da 343000Pa;
Matsakaicin madaidaicin matsi mai ƙarfi da ƙarancin fan shine kamar haka (a daidaitaccen yanayi):
· Matsakaicin matsi na centrifugal: cikakken matsa lamba P≤1000Pa
Matsakaicin matsa lamba centrifugal fan: cikakken matsa lamba P=1000 ~ 5000Pa
Babban matsi na centrifugal fan: cikakken matsa lamba P = 5000 ~ 30000Pa
* Matsakaicin magudanar ruwa axial: cikakken matsa lamba P≤500Pa
Babban matsi axial kwarara fan: cikakken matsa lamba P = 500 ~ 5000Pa
Hanyar centrifugal Fan suna:
Misali: 4-79NO5
Hanyar model da styda:
Misali: YF4-73NO9C
Matsin fan na centrifugal yana nufin matsi na haɓakawa (dangane da matsa lamba na yanayi), wato, haɓakar iskar gas a cikin fan ko bambanci tsakanin matsin iskar gas a mashigai da mashigar fan. . Yana da matsatsi na tsaye, matsa lamba mai ƙarfi da jimlar matsa lamba. Ma'aunin aikin yana nufin jimlar matsa lamba (daidai da bambanci tsakanin jimlar matsa lamba na fan da kuma jimlar matsi na fan), kuma ana amfani da naúrar ta Pa, KPa, mH2O, mmH2O, da sauransu.
Yawo:
Yawan iskar gas da ke gudana ta fan ɗin kowane lokaci naúrar, wanda kuma aka sani da ƙarar iska. Q wanda aka fi amfani dashi don wakilci, rukunin gama gari shine; m3/s, m3/min, m3/h (dakika, mintuna, sa'o'i). (Wani lokaci kuma ana amfani da "gudanar jama'a" wato, yawan iskar gas da ke gudana ta fan ɗin kowane lokaci naúrar, wannan lokacin yana buƙatar yin la'akari da yawan iskar gas na mashigar fan, da abun da ke tattare da iskar gas, yanayin yanayi na gida, zafin gas, matsa lamba mai shiga. yana da tasiri na kusa, yana buƙatar canzawa don samun "gudanar gas" na al'ada.
Gudun juyawa:
Gudun jujjuyawar fan. Ana bayyana shi sau da yawa a cikin n, kuma naúrar sa r/min (r yana nuna saurin gudu, min yana nuna minti).
Ƙarfi:
Ikon da ake buƙata don fitar da fan. Yawancin lokaci ana bayyana shi da N, kuma sashinsa shine KW.
Lambar amfani da fan gama gari
Yanayin watsawa da ingancin injina:
Fan gama gari sigogi, buƙatun fasaha
Babban fan na samun iska: cikakken matsa lamba P =… karshen motor), zafin aiki T =… ° C (zazzabi na dakin ba za a iya rubuta ba), samfurin motar…… .. jira.
Magoya bayan zafin jiki da sauran magoya baya na musamman: cikakken matsa lamba P =… Pa, kwarara Q =… m3/h, iskar gas mai yawa Kg/m3, yanayin watsawa, matsakaicin isarwa (iska mai yiwuwa ba za a rubuta ba), jujjuyawar impeller, mashigi da mashigar Angle (daga ƙarshen motar), zafin aiki T = ... .. ℃, matsakaicin matsakaicin zafin jiki T = ... ° C, yawan iskar gas da aka shigo da shi □Kg/m3, matsa lamba na yanayi na gida (ko matakin teku na gida), ƙaddamar da ƙura, mai sarrafa kofa, model motor, shigo da fitarwa fadada hadin gwiwa, overall tushe, na'ura mai aiki da karfin ruwa hada guda biyu (ko mita Converter, ruwa juriya Starter), bakin ciki mai tashar, jinkirin juya na'urar, actuator, farawa majalisar, iko hukuma… .. jira.
Kariyar babban gudun fan (B, D, C drive)
· nau'in 4-79: 2900r / min ≤NO.5.5; 1450 r / min ≤NO.10; 960 r / min ≤NO.17;
· 4-73, 4-68 nau'in: 2900r / min ≤NO.6.5; 1450 r/min ≤15; 960 r / min ≤NO.20;
Fan sau da yawa yana amfani da dabarar lissafi (sauƙaƙe, kimanin, amfani gabaɗaya)
Ana canza haɓaka zuwa matsa lamba na yanayi na gida
(760mmHg) (matakin teku ÷12.75) = matsa lamba na yanayi (mmHg)
Lura: Tsayin da ke ƙasa da mita 300 Ba za a iya gyara ba.
· 1mmH2O=9.8073Pa;
· 1mmHg=13.5951 mmH2O;
· 760 mmHg=10332.3117 mmH2O
· Gudun fan 0 ~ 1000m a tsayin teku ba za a iya gyara ba;
· 2% kwarara kudi a 1000 ~ 1500M tsawo;
· 3% kwarara kudi a 1500 ~ 2500M tsawo;
· 5% fitarwa a matakin teku sama da 2500M.
Ns:
Lokacin aikawa: Agusta-17-2024