Turbina na Wata

A turbine na duka shine mafi girman tushen karamin sanya a dukar tushen karamin sanya. Turbine na duka zai iya kasancewa 5 megawatts zuwa 2000 megawatt.

Munafara na turbine na duka daga engine na diesel sun haɗa da haka.

1. Turbine na duka yana cikin ƙarin waɗanda ya fi ɗaukar engine na diesel mai tsari. Wadannan turbine na duka da take 30-megawatts yana da take sama da engine na diesel da take 5-megawatts.

2. A gagarwa, turbine na duka yana da ƙarin sauƙi daga engine na diesel. Shaft na rotor, blades, kuma valve na kontrol ta steam su ne farkon abubuwan da ke da a turbine na duka.

3. A turbine na duka yana da ƙarin sauƙi wajen ƙwarewa daga engine na diesel idan an samun sahihi a fittowa masu gudummawa a cikin system.

4. Sokki na turbine na duka zai iya kasancewa ƙarin da engine na diesel. Sokki na standard na turbine na duka da ake amfani da ita a shirin karamin sanya shine 3600 RPM a Amurka da 3000 RPM a Ingila, sai dai sokki na standard na engine na diesel da ake amfani da shi a wurin daɗi shine 200 RPM.

5. Kontrol na turbine na duka yana da ƙarin sauƙi daga engine na diesel. Ana amfani da valve na kontrol don wannan. An fito valve na kontrol a line na inlet na steam. Valve na kontrol shine muke yake kontrola flow na steam zuwa turbine. Akwai valve na stop kadan da ake fito kafin valve na kontrol. Farkon valve na stop shine ya kare flow na steam zuwa turbine idan an samun abin da ba daidai ba. Valve na stop shine valve na emergency.

Steam yana zauna zuwa turbine da tsauci da pressure da temperature. Ba da aiki da ya yi a kan rotate shaft, steam yana fitar da pressure da temperature da ƙarin ƙwarra. Steam zai iya zauna zuwa turbine da pressure da temperature da 1800 Pa, da 1000oF har zuwa, da pressure da temperature da fitar da steam zai iya kasancewa 1 Pa da 100oF har zuwa.

Prinsipin Aiki na Turbine na Duka

A steam engine na reciprocal, steam na tsauci da pressure yana yi aiki a piston wanda yana taimaka a mechanical movement na piston. Idan ake nufin, ba ake amfani da aiki na dynamic na steam a reciprocal system. Amma a gasar turbine na duka, ana amfani da aiki na dynamic na steam na yanayi a yi aiki na mechanical.

A turbine na duka, steam a nozzles yana yanayi kuma yana samun kinetic energy kuma yana kawo pressure. Steam yana samun kinetic energy a lokacin da yake yanayi daga enthalpy na internal. Blades na turbine suke aikata momentum na steam kuma sun taimaka steam a canza direction na flow. Duk da haka, momentum na steam yana bayyana force a blades na turbine. Zan iya cewa momentum na steam na yanayi shine driving force na turbine na duka.

Yanayi da steam kuma canza direction na momentum zai iya faruwa a stage na daya ko a stages da ƙarin, bincika turban na type.

Idan akwai provision na yanayi na steam a turbine na daya, da pressure na steam yana daidai a cikin process ba a yanaye ba, turbine shine impulse turbine na single stage. A impulse turbine, steam na high-pressure, high-temperature da ya fito zuwa nozzle head yana yanayi kuma yana form steam jet wanda yana ciye suke a blades na moving, wanda yana taimaka rotate rotor na turbine.

Akwai wata type na turbine da steam yana yanayi a cikin process. A nan, yanayi na steam yana faruwa idan ya fito zuwa blades na turbine. A lokacin da yanayi, enthalpy na steam yana convert zuwa kinetic energy kuma rotor na turbine yana rotate da action na propeller.

Type na turbine shine reaction turbine. A type na turbines, akwai sets biyu na blades. Set na biyu shine fixed blades da ake fixe zuwa parts na stationary na turbine da set na biyu shine moving blades da ake fixe zuwa rotor na turbine. Yanayi na steam yana faruwa a space na formed da fixed da moving blades.

Akwai components biyu na muhimmanci a turbine na practical, nozzles da blades. Nozzle shine device da ake fito a steam inlet na turbine. Steam na high-temperature, high-pressure da kinetic energy da ƙarin ƙwarra yana yanayi, yana kawo pressure kuma yana samun kinetic energy da ƙarin sauƙi don aiki na mechanical da nozzles.

Blades na turbines suna nufin deflector. Saboda haka, dynamics steam yana canza direction idan ya ciye suke a blades. Mechanical energy na expanding steam yana ciye suke a blades na turbine.

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