Kudzvanya gasi inzira yekushandisa simba rekunze kuti gasi riwedzere simba. Compressor ndiyo inogadzira gasi rakamanikidzwa. Saka, mashandiro ekutanga emhepo ye screw air compressor haaparadzaniswi nezvinhu izvi zvina: kumanikidzwa, kuyerera, simba uye simba rakati.
Kushanda kwekutanga kwe screw air compressor air end - kumanikidzwa
Kuwana simba rekumanikidzwa kwemhepo yakamanikidzwa ndiko kushanda kwakanyanya kwemacompressor emhepo, uye macompressor emhepo ane screw haasiwo musiyano. Injini huru yemacompressor emhepo ane screw inowedzera kumanikidzwa kwemhepo nekushandisa simba rekunze. Kana kumanikidzwa kwacho kwakakwira, simba rakawanda rinoshandiswa, uye zvinodiwa zveinjini huru zvinokwira. Kazhinji tinokamura macompressor emhepo muzvikamu zvina zvichienderana nekumanikidzwa kwekubuda:
Kumanikidzwa kwakaderera: 0.2 ~ 1.0MPa
Kumanikidzwa kwepakati: 1.0 ~ 10MPa
Kumanikidzwa kwakanyanya: 10~100MPa
Kumanikidzwa kwakanyanya: pamusoro pe100MPa
Macompressor emhepo ane sikuruu anowanzova nekumanikidzwa kwemhepo kwe0.2 ~ 4.0MPa, zvinoreva kuti mashandiro awo, kugona kwawo uye kushaya simba zviri nani pane izvi. Izvi zvinotsanangurwa nechimiro uye mashandiro emhepo yecompressor, uye ndiyo chikamu chekumanikidzwa chinodiwa zvakanyanya pamusika.
Kumanikidzwa kwemhepo kunopihwa necompressor yemhepo kunonyanya kuyerwa nechiyero chekumanikidzwa, chinova chiyero chekumanikidzwa kwekubuda Pd nechisimba chekusvuta Ps. Chiyero chakakwira, kumanikidzwa kwekubuda kwacho kwakakwira.
Fomura yeε=Pd/Ps (6)
Kune injini huru ye screw air compressor, kune chiyero chekumanikidzwa kwemukati uye chiyero chekumanikidzwa kwekunze.
Chiyero chekumanikidzwa kwemukati: chiyero chekumanikidzwa muhuwandu hwepakati pemazino einjini huru nekumanikidzwa kwekusvuta, izvo zvinotsanangurwa nenzvimbo uye chimiro chenzvimbo dzekusvuta nekuburitsa mweya;
Chiyero chekumanikidzwa kwekunze: chiyero chekumanikidzwa kuri mupombi yekuburitsa utsi nekumanikidzwa kwekusvuta. Kumanikidzwa kwekusvuta nekubuda kweutsi kunodiwa pakushanda kana kuyerera kwemaitiro.
Kana chiyero chekumanikidzwa kwemukati chikapfuura chiyero chekumanikidzwa kwekunze, injini huru inoshandisa simba rakawanda; kana chiyero chekumanikidzwa kwemukati = chiyero chekumanikidzwa kwekunze, injini huru inenge iri mumamiriro akanaka kwazvo.
Kana injini huru ye screw air compressor yakafanana, kana injini huru, tembiricha yemhepo, kumanikidzwa kwekusveta, kumhanya kweinjini huru nezvimwe zvinhu zvakafanana, kumanikidzwa kwekubuda kwakakwira, simba rinoshandiswa zvakanyanya.
Kushanda kwekutanga kwe screw air compressor air end - flow yemhepo
Kuyerera kunowanzo umbwa nekuyerera kwehuwandu uye kuyerera kwehuwandu. Mumagadzirirwo eindasitiri uye zviyero zvemasisitimu ecompressor yemhepo, tinowanzo shandisa kuyerera kwehuwandu senzira yekuyera kuyerera, iyo inonziwo huwandu hwekubudisa kana kuyerera kwezita munyika yangu: pasi pekumanikidzwa kwekubudisa kunodiwa, huwandu hwegasi rinoburitswa necompressor yemhepo panguva imwe neimwe rinoshandurwa kuita mamiriro ekupinda, kureva kuti, kukosha kwehuwandu hwekumanikidza kwekusveta papombi yekupinda yekutanga uye tembiricha yekusveta nehunyoro. Chiyuniti i m3/min. Kuyerera kwehuwandu kwakakamurwa kuita kuyerera kwehuwandu chaihwo uye kuyerera kwehuwandu hwakajairika.
Kazhinji, masampuli, sarudzo, uye mazita emuchina anoshandisa kuyerera kwehuwandu hwakajairika. Nekuda kweindasitiri, dunhu uye mashandisirwo, kuyerera kwehuwandu hwakajairika mumusika wemhepo yakamanikidzwa kune tsananguro mbiri zvichienderana nemusiyano uripo mumamiriro akajairwa (tembiricha, kumanikidzwa uye zvikamu):
Mamiriro akajairwa ndeekuti kumanikidzwa P=101.325KPa; tembiricha yakajairwa T=0℃; hunyoro hwepakati i0%. Hunowanzoonekwa mumagwaro egasi remaindasitiri, indasitiri yemakemikari kana magwaro ekubhidha, anonzi "standard square", kazhinji kacho nechiratidzo chefomula "VN" uye unit yeNm3/min.
Mamiriro akajairwa ndeekuti kumanikidzwa P = 101.325KPa; tembiricha yakajairwa T = 20℃; hunyoro hwepakati i0%. Inowanzo shandiswa muzviyero zveindasitiri yemhepo yakamanikidzwa uye inonzi "mamiriro ekushanda akajairwa". Chiratidzo chinowanzova "V" uye unit yacho i m3/min.
Kazhinji, mwero wehuwandu hwemhepo inoshandiswa muindasitiri yedu yecompressor yemhepo ndiyo yekupedzisira. Kuchinja kwehuwandu hwehuwandu hwemhepo pasi pemamiriro maviri aya kunogona kuverengerwa nefomura:
V(m3/min)=1.0732VN(Nm3/min) Fomula (7)
Kana injini huru ye screw air compressor ikaita seyiyi, pasi pemamwe mamiriro akafanana, daro repakati pe rotor rakakura, vhoriyamu yekufamba kwayo yakakura; kumhanya kweinjini huru kwakakwira, vhoriyamu yekufamba kwayo yakakura.
Mwero wekuyerera kwevhoriyamu yeV = qv vhoriyamu yekudzvanya injini huru × n kumhanya kwemusoro Fomura (8)
qv=CΨqv0Z1n=CΨCn1nλD3 Fomura (9)
Apo Z1——nhamba yemazino emukono werotor; n——kumhanya kwemukono werotor; λ——rotor aspect ratio; D——dhayamita yekunze yemukono werotor.
Saka, nekuda kwekuchengetedza mari, tinowanzo deredza mhando dzeinjini huru uye tinogona kugadzirisa huwandu hwemhepo inobuda mumhepo nekuona kumhanya kweinjini huru kuti ienderane nezvinodiwa pamusika.
Zvisinei, kumhanya kweinjini huru ye screw compressor hakugone kuva kwakakwirira zvikuru, kazhinji pakati pe 800 ne 10,000 rpm. Nokudaro, mugadziri weinjini huru ye screw anogadzira mainjini makuru ane huwandu hwakasiyana hwekuyerera kwehuwandu kuti asvike pazvinodiwa ne screw compressor.
Simba remhepo ine compressor yescrew uye kuverenga kwayo
Simba remubato rinoshandiswa nekuyerera kwehuwandu panguva imwe neimwe apo mhepo yecompressor iri kushanda. Chikamu chesimba rakati ndeichi: kW/(m3/min).
Fomura yekuverenga ndeiyi inotevera:
Mugumo wemhepo weSER = Pd mugumo wemhepo/qv Fomura (10)
Pd mhepo yekupedzisira - simba remugodhi wemhepo yekupedzisira;
qv - kuyerera kwehuwandu hwemhepo panguva imwe neimwe
Simba rayo chairo ndiro:
SER magumo emhepo = 117/23.1 = 5.065 (kW/(m3/min))
Kana simba remhepo ye screw air compressor rikaderera, simba rayo rinoshandiswa zvishoma uye simba remhepo rinoita zviri nani. Kana mhepo ichifamba zvakanaka, simba remhepo rinobuda rakawedzera, simba remhepo rinoitawo zvakawanda, saka simba rayo rinoitawo zvakanyanya.
Compressor yega yega ine simba rayo rakakodzera, iro rine chekuita nekumhanya kweinjini huru. Kana kumhanya kweinjini huru kwakaderera, kubuda kwemvura kunowedzera, huwandu hwegasi hunoderera, uye simba rayo rinokwira; kana kumhanya kweinjini huru kwakakwira, kukweshana kunowedzera, simba remubato rinowedzera, uye simba rayo rinokwira. Asi panofanira kunge paine kumhanya kwakakodzera kunoita kuti simba rayo rive rakaderera. Ndokusaka zvisiri zvechokwadi kutaura kuti kana injini huru yakakura, ndipo painochengetedza simba zvakanyanya.
Patinogadzira macompressor escrew uye macompressor efrequency anochinja-chinja, tinofanira kuve nechokwadi chekuti mhando yeinjini huru inoshanda zvakanaka, uye kuti inoshanda zvakanaka. Saka, tichashandisa curve yesimba reinjini huru kugadzira nekugadzira macompressor escrew ane kumanikidzwa kwakasiyana uye kuyerera.
Nguva yekutumira: Chikunguru-17-2024
