Matse iskar gas tsari ne na cinye makamashin waje don samar da makamashin da ke iya haifar da matsin lamba ga iskar gas. Matse iskar gas shine wanda ya ƙirƙiri iskar gas mai matsewa. Saboda haka, aikin asali na ƙarshen iskar matse iskar sikirin ba zai iya rabuwa da waɗannan fannoni huɗu ba: matsin lamba, kwarara, iko da takamaiman iko.
Ainihin aikin matsi na iska na sukurori - matsin lamba
Samun ƙarfin matsin lamba na iska mai matsewa shine mafi mahimmancin aikin kwampreso na iska, kuma kwampreso na iska mai sukurori ba banda bane. Babban injin kwampreso na iska mai sukurori yana ƙara matsin lamba na iska ta hanyar cinye makamashin waje. Mafi girman matsin lamba, ƙarin kuzari ana cinyewa, kuma mafi girman buƙatun babban injin. Yawancin lokaci muna raba kwampreso na iska zuwa rukuni huɗu bisa ga matsin lamba na fitarwa:
Ƙarancin matsin lamba: 0.2~1.0MPa
Matsakaicin matsin lamba: 1.0~10MPa
Babban matsin lamba: 10~100MPa
Matsanancin matsin lamba: sama da 100MPa
Matsewar iska ta sukurori yawanci tana da matsin lamba na fitarwa na 0.2 ~ 4.0MPa, wanda ke nufin cewa aikinsu, yuwuwarsu da kuma tattalin arzikinsu sun fi kyau a wannan fanni. Wannan yana faruwa ne ta hanyar tsari da yanayin aiki na ƙarshen iskar damfara, kuma shine ɓangaren matsin lamba mafi yawan buƙatun kasuwa.
Ana auna matsin iska mai matsewa da na'urar sanyaya iska ke bayarwa galibi ta hanyar rabon matsin lamba, wanda shine rabon matsin lamba na fitarwa Pd zuwa matsin lamba na tsotsa Ps. Mafi girman rabo, mafi girman matsin lamba na fitarwa.
ε= Tsarin Pd/Ps (6)
Ga babban injin na na'urar kwampreso ta iska, akwai rabon matsin lamba na ciki da rabon matsin lamba na waje.
Rabon matsin lamba na ciki: rabon matsin lamba a cikin girman haƙoran babban injin zuwa matsin tsotsa, wanda aka ƙayyade ta wurin da siffar tashoshin tsotsa da fitar da hayaki;
Rabon matsin lamba na waje: rabon matsin lamba a cikin bututun shaye-shaye zuwa matsin lamba na tsotsa. Matsin tsotsa da shaye-shaye da ake buƙata don yanayin aiki ko kwararar aiki.
Idan rabon matsin lamba na ciki ya kai ≠ rabon matsin lamba na waje, babban injin zai cinye ƙarin ƙarfi; idan rabon matsin lamba na ciki ya kai rabon matsin lamba na waje, babban injin yana cikin mafi kyawun yanayi.
Ga babban injin na na'urar kwampreso ta iska, lokacin da babban injin, zafin yanayi, matsin lamba na tsotsa, saurin injin da sauran abubuwa iri ɗaya ne, yawan matsin lamba na fitarwa, yawan amfani da wutar lantarki.
Ainihin aikin iska mai matse iska - kwararar iska
Yawanci kwararar ruwa tana ƙunshe da kwararar ruwa da yawa. A cikin ƙayyadaddun bayanai na masana'antu da ƙa'idodin tsarin matse iska, yawanci muna amfani da kwararar ruwa a matsayin hanyar auna kwarara, wanda kuma ake kira ƙarar shaye-shaye ko kwararar suna a ƙasata: a ƙarƙashin matsin lamba da ake buƙata na shaye-shaye, ƙarar iskar gas da matse iska ke fitarwa a kowane lokaci ana canza ta zuwa yanayin shiga, wato, ƙimar ƙarar matsin lamba na tsotsa a bututun shiga mataki na farko da zafin tsotsa da zafi. Naúrar ita ce m3/min. Ana raba kwararar ruwa zuwa ainihin kwararar ruwa da kwararar ruwa ta yau da kullun.
Yawanci, samfura, zaɓaɓɓu, da kuma lambobin sunaye na injin suna amfani da daidaitaccen kwararar girma. Saboda masana'antu, yanki da amfani, matsakaicin kwararar girma a cikin buƙatar kasuwar iska mai matsewa yana da ma'anoni biyu dangane da bambancin yanayin daidaito (zafin jiki, matsin lamba da abubuwan da aka haɗa):
Matsayin da aka saba amfani da shi shine matsin lamba P=101.325KPa; yanayin zafin jiki na yau da kullun T=0℃; ɗanɗanon da ya dace shine 0%. Sau da yawa ana samunsa a cikin iskar gas ta masana'antu, masana'antar sinadarai ko takaddun tayin, wanda ake kira "murabba'i na yau da kullun", yawanci tare da alamar dabara "VN" da kuma naúrar Nm3/min.
Matsayin da aka saba amfani da shi shine matsin lamba P = 101.325KPa; yanayin zafin jiki na yau da kullun T = 20℃; ɗanɗanon da ya dace shine 0%. Yawanci ana amfani da shi a cikin ma'aunin masana'antar iska mai matsewa kuma ana kiransa "yanayin aiki na yau da kullun". Alamar yawanci ita ce "V" kuma na'urar ita ce m3/min.
Yawanci, daidaitaccen ƙimar kwararar girma da ake amfani da shi a masana'antar matse iskarmu shine na ƙarshe. Ana iya ƙididdige canjin ƙimar kwararar girma a ƙarƙashin yanayi biyu ta hanyar dabarar:
V(m3/min)=1.0732VN(Nm3/min) Formula (7)
Ga babban injin na na'urar kwampreso ta iska, a ƙarƙashin sauran yanayi iri ɗaya, girman nisan tsakiyar na'urar rotor, girman yawan kwararar sa; mafi girman saurin babban injin, mafi girman yawan kwararar sa.
Yawan kwararar V = girman matsi na babban injin qv × n saurin kai Tsarawa (8)
qv=CΨqv0Z1n=CΨCn1nλD3 Tsarin (9)
Inda Z1——adadin haƙoran rotor na namiji; n——gudun rotor na namiji; λ——rabobin yanayin rotor; D——diamita na waje na rotor na namiji.
Saboda haka, don kare tattalin arziki, yawanci muna rage nau'ikan manyan injuna kuma muna iya daidaita yawan fitar da iska ta hanyar tantance saurin babban injin don biyan buƙatun kasuwa.
Duk da haka, saurin injin mai kunna sikirin ba zai iya zama mai yawa ba, yawanci tsakanin 800 zuwa 10,000 rpm. Saboda haka, kamfanin kera injin mai kunna sikirin yana haɓaka manyan injuna tare da kewayon kwararar girma daban-daban don biyan buƙatun kwararar sikirin.
Ƙarfin da lissafi na musamman na matse iska da kuma matse iska
Ƙarfin shaft da kwararar ƙara ke cinyewa a kowane lokaci na naúrar lokacin da iskar matse iska ke aiki. Naúrar takamaiman ƙarfin shine: kW/(m3/min).
Tsarin lissafi kamar haka:
Ƙarshen iska na SER = Ƙarshen iska na Pd/qv Tsarin (10)
ƙarshen iska na Pd - ƙarfin shaft na ƙarshen iska;
qv - kwararar iska a kowane lokaci na naúrar
Takamaiman ƙimar ƙarfinsa shine:
Ƙarshen iska na SER = 117/23.1 = 5.065 (kW/(m3/min))
Ƙaramin ƙimar ƙarfin da ke cikin bututun iska mai matse iska, ƙarancin amfani da makamashinsa da kuma ingancin aikin bututun iska. A ƙarƙashin yanayin kwararar iska akai-akai, yawan matsin lamba na fitarwa, yawan ƙarfin bututun iska, haka ƙimar ƙarfinsa ta musamman.
Kowace na'urar damfara ta sukurori tana da ƙimar ƙarfin da ta dace, wanda ke da alaƙa da saurin babban injin. Lokacin da babban saurin injin ya yi ƙasa sosai, zubewar ta ƙaru, ƙarar iskar gas ta ragu, kuma ƙimar ƙarfin da ta dace ta ƙaru; lokacin da babban saurin injin ya yi yawa, gogayya ta ƙaru, ƙarfin shaft yana ƙaruwa, kuma ƙimar ƙarfin da ta dace ta ƙaru. Amma dole ne a sami ingantaccen gudu wanda ya sa ƙimar ƙarfin da ta dace ta ƙaru. Shi ya sa ba lallai ba ne a ce babban injin ya fi girma, haka ma yawan tanadin makamashi yake ƙaruwa.
Lokacin da muke tsara na'urorin matsawa da na'urorin matsawa masu canzawa, dole ne mu tabbatar da inganci yayin da muke la'akari da tattalin arziki, daidaito da kuma yanayin babban injin. Saboda haka, za mu yi amfani da lanƙwasa ƙimar ƙarfin injin musamman don tsara da haɓaka na'urorin matsawa da ke da matsi da kwarara daban-daban.
Lokacin Saƙo: Yuli-17-2024
