Ndeapi anowanzo shandiswa emuviri unit paramita yemhepo compressors?
pressure
Simba rinoshanda panzvimbo yepasi ye 1 square centimeter pasi pemaitiro emuchadenga mumhepo i10.13N.Nokudaro, mhedziso yemhepo yepamhepo pamvura yegungwa inenge 10.13x104N/m2, iyo yakaenzana ne10.13x104Pa (Pascal, SI unit of pressure).Kana shandisa imwe unit inowanzo shandiswa: 1bar=1x105Pa.Iyo yakakwira (kana yakaderera) iwe unobva padanho regungwa, yakaderera (kana kumusoro) iyo mhepo yemhepo.
Mageji mazhinji ekumanikidza anoyerwa semusiyano uripo pakati pekumanikidza mumudziyo uye kumanikidzwa kwemhepo, saka kuti uwane kumanikidzwa kwakazara, kumanikidzwa kwemhepo yemuno kunofanirwa kuwedzerwa.
tembiricha
Kupisa kwegasi kwakaoma zvikuru kutsanangura zvakajeka.Tembiricha chiratidzo cheavhareji kinetic simba rekufamba kwemamorekuru kwechinhu uye ndiko kuratidzwa kwakaungana kwekufamba kwekupisa kwenhamba huru yemamorekuru.Kumhanya kunoita mamorekuru ndiko kuwedzera tembiricha.Pazero yakakwana, kufamba kunomira zvachose.Tembiricha yeKelvin (K) inobva pane ichi chiitiko, asi inoshandisa zviyero zvakafanana seCelsius:
T=t+273.2
T = tembiricha yakakwana (K)
t=Tembiricha yeCelsius (°C)
Mufananidzo uyu unoratidza hukama huri pakati petembiricha muCelsius naKelvin.PaCelsius, 0° inoreva nzvimbo yekutonhora kwemvura;nepo kuna Kelvin, 0 ° iri zero yakakwana.
Kupisa simba
Kupisa imhando yesimba, inoratidzwa sesimba rekinetic remamorekuru asina kurongeka echinhu.Kupisa kwechinhu ndiko kuwanda kwekupisa kunodiwa kuwedzera tembiricha nechikamu chimwe (1K), chinotaridzwawo seJ/K.Kupisa chaiko kwechinhu kunoshandiswa zvakanyanya, ndiko kuti, kupisa kunodiwa kuti unit mass of substance (1kg) ichinje unit temperature (1K).Iyo unit yekupisa chaiyo iJ/(kgxK).Saizvozvo, iyo unit ye molar kupisa huwandu ndeye J/(molxK)
cp = kupisa kwakananga pakumanikidzwa nguva dzose
cV = kupisa chaiko pahuwandu hwenguva dzose
Cp = molar chaiyo kupisa pakumanikidza nguva dzose
CV = molar chaiyo kupisa pahuwandu hunoramba huripo
Iko kupisa kwakananga pakumanikidza kunogara kwakakura kupfuura kupisa kwakaringana pahuwandu hwenguva dzose.Kupisa chaiko kwechinhu hakusi kugarisa.Kazhinji kutaura, inowedzera sezvo tembiricha inokwira.Nokuda kwezvinangwa zvinoshanda, chiyero chepakati chekupisa kwakananga chinogona kushandiswa.cp≈cV≈c yemvura uye yakasimba zvinhu.Kupisa kunodiwa kubva patembiricha t1 kusvika t2 ndeiyi: P=m*c*(T2 –T1)
P = simba rekupisa (W)
m=kuyerera kwehuwandu (kg/s)
c=kupisa chaiko (J/kgxK)
T=tembiricha(K)
Chikonzero nei cp yakakura kupfuura cV kuwedzera kwegasi pasi pekumanikidzwa nguva dzose.Chiyero che cp ku cV chinonzi isentropic kana adiabatic index, К, uye ibasa renhamba yemaatomu mumamorekuru echinhu.
kubudirira
Mechanical work inogona kutsanangurwa sechigadzirwa chesimba rinoshanda pachinhu uye chinhambwe chinofambwa munzira yesimba.Kufanana nekupisa, basa imhando yesimba rinogona kutamiswa kubva pane chimwe chinhu kuenda kune chimwe.Musiyano ndewekuti simba rinotsiva tembiricha.Izvi zvinoratidzwa negasi riri muhumburumbira riri kudzvinyirirwa nepistoni inofamba, kureva kuti simba rinosunda pisitoni rinoita kutsikirirwa.Saka simba rinotamiswa kubva papiston kuenda kugasi.Iyi simba rekufambisa ibasa re thermodynamic.Migumisiro yebasa inogona kuratidzwa nenzira dzakawanda, dzakadai sekuchinja kwesimba rinogona kuitika, kuchinja musimba rekinetic, kana kuchinja kwesimba rinopisa.
Mechanical basa rine chekuita nevhoriyamu shanduko yemagasi akasanganiswa ndeimwe yeakanyanya kukosha maitiro muinjiniya thermodynamics.
Chikamu chepasi rose chebasa ndeche Joule: 1J=1Nm=1Ws.
simba
Simba ndiro basa rinoitwa panguva yeyuniti.Ihuwandu hwemuviri hunoshandiswa kuverenga kukurumidza kwebasa.Iyo SI unit ndeye watt: 1W = 1J/s.
Semuenzaniso, simba kana simba rinoyerera kune compressor drive shaft yakaenzana nenhamba yehuwandu hwekupisa hwakaburitswa muhurongwa uye kupisa kunobata gasi rakadzvanywa.
Kuyerera kwevhoriyamu
Iyo system volumetric kuyerera mwero chiyero chehuwandu hwemvura payuniti nguva.Inogona kuverengwa se: nzvimbo yemuchinjikwa-sectional iyo zvinhu zvinoyerera zvichiwedzerwa neavhareji yekuyerera velocity.Iyo yepasi rose unit yevolumetric kuyerera ndeye m3/s.Nekudaro, iyo unit litre/second (l/s) inowanzoshandiswa mucompressor volumetric flow (inonziwo flow rate), inoratidzwa seyakajairwa litre/second (Nl/s) kana mhepo yemahara (l/ s).Nl/s ndiyo chiyero chekuyerera chakaverengerwa pasi pe "standard mamiriro", ndiko kuti, kudzvanywa kuri 1.013bar (a) uye tembiricha i0 ° C.Iyo yakajairwa unit Nl/s inonyanya kushandiswa kuona kuwanda kwekuyerera.Kuyerera kwemhepo yemahara (FAD), kubuda kweiyo compressor kunoshandurwa kuita kuyerera kwemhepo pasi pemamiriro ekupinza (inlet pressure ndeye 1bar (a), inlet tembiricha i20 ° C).
Chirevo: Ichi chinyorwa chakaburitswa kubva paInternet.Zviri muchinyorwa ndezvekudzidza nekutaurirana chete.Air Compressor Network inoramba isina kwayakarerekera maererano nemaonero ari muchinyorwa.Kopirateti yechinyorwa ndeyemunyori wekutanga uye puratifomu.Kana pane kukanganisa, tapota taura nesu kuti tibvise.