Boiler na fire tube shi ne wata na nufin da ake amfani da zafi mai yaki don kula ruwa a cikin tubukan. Tubukan suna ci gaba da ruwa a gidan mai sarrafa. Zafi na mai yaki ke taka wannan zafi zuwa ruwa a kan kofin tubukan ta hanyar thermal conduction, kuma ke samu steam da ake iya amfani da shi a fannan abubuwa.
Boiler na fire tube suna cikin mafi girma da masu alama na boiler. An amfani da su da dama a shekarun 18th da 19th, musamman don lokomotif da yanayi na yaki. A ranar, an amfani da boiler na fire tube har zuwa wasu tattalin arziki da kasuwanci, kamar kula, kudin zabe, da kuma steam na ingantaccen.
A cikin littafin, za a bayyana takardun, abubuwan, fafi, da kuma matsaloli na boiler na fire tube. Za a yi amfani da muhimmin bayanan da ake samu daga Bing’s top 5 related pages na farko, kuma za a sanar da links na wajen bayanan da suka fiye.
Boiler na fire tube ya nufin cewa boiler na cikin wata mai sarrafa da ruwa da tubukan da suke ci gaba. Tubukan suna da zafi mai yaki (yanayi ake kula da coal, oil, ko gas) wanda ke kula ruwa da take samu steam.
Muhimmanci na cikin boiler na fire tube sun hada da:
Furnace: Gidan da ake kula fuel don samun zafi mai yaki.
Fire tubes: Tubukan da suke ci gaba da zafi mai yaki daga furnace zuwa smokebox.
Smokebox: Gidan da suke ci gaba da zafi mai yaki da kuma ke fuskantar zafi zuwa chimney.
Steam dome: Babban baki na boiler da steam ke ci gaba da kuma ke fuskantar zuwa outlets.
Superheater: Wani wurare da ake amfani da shi don kula steam don take dry da superheated.
Grate: Platform da ake ci gaba da fuel don kula.
Feedwater inlet: Pipe da ke ci gaba da ruwa zuwa boiler.
Steam outlet: Pipe da ke fuskantar steam zuwa wani abin da ake bukata.
Yakin da ake yi a cikin boiler na fire tube shi ne tsari da ma'ana. Fuel an kula a cikin furnace, da take samun zafi mai yaki da suke ci gaba a kan fire tubes. Zafi na mai yaki ke taka wannan zafi zuwa ruwa da suke ci gaba, da take kula temperature da pressure. Steam na ke ci gaba zuwa steam dome, inda ake iya fuskantar zuwa wani abin da ake bukata. Ruwa an kula tun da feedwater inlet.
Pressure da temperature na steam suna da shugaban da design da size na boiler, kamar da quality da quantity na fuel. Duk da haka, boiler na fire tube suna iya samun low to medium-pressure steam (up to 17.5 bar) da low to medium capacity (up to 9 metric tons per hour).
Wani na mafi yawan cin da boiler na fire tube ke da shi shi ne cewa babu kyau a samun high-pressure da high-capacity steam. Saboda haka, suna da single large vessel da ke ci gaba da ruwa da kuma steam, wanda ya ba shi karfin da ake kontrola pressure da temperature. Kuma, boiler na fire tube suna da kyautar explosion idan vessel an kasa saboda excessive pressure ko damage.
An fi sune abubuwan boiler na fire tube da dama based on various criteria, kamar:
Location of the furnace: An fi sune abubuwan boiler na fire tube da biyu based on the location of their furnace: external furnace and internal furnace. External furnace boilers suna da furnace da suke ci gaba a kan main vessel, while internal furnace boilers suna da furnace a cikin ko attached to it.
Orientation of boiler axis: An fi sune abubuwan boiler na fire tube da biyu based on their orientation: horizontal and vertical. Horizontal boilers suna da axis parallel to the ground, while vertical boilers suna da axis perpendicular to it.
Number and shape of fire tubes: An fi sune abubuwan boiler na fire tube da dama based on the number and shape of their fire tubes, kamar single tube, multi-tube, straight tube, bent tube, etc.
Wadannan ne mafi girma na abubuwan boiler na fire tube:
Cochran boiler shi ne wata na vertical fire tube boiler da cylindrical shell da dome-shaped top. Suna da one or more fire tubes da suke ci gaba a kan length. Suna da external furnace da ake iya kula da coal-fired ko oil-fired.
Cochran boiler suna iya samun low-pressure steam (up to 10.5 bar) da low capacity (up to 3500 kg per hour). Shi ne compact in size da easy to operate. An amfani da shi a small-scale industrial applications, kamar kula, kudin zabe, da kuma steam na ingantaccen.
Cornish boiler shi ne wata na horizontal fire tube boiler da long cylindrical shell da single large flue containing the fire. Shi ne simple design da low maintenance cost. Suna iya samun medium-pressure steam (up to 12 bar) da medium capacity (up to 6500 kg per hour).
Richard Trevithick ya gina Cornish boiler a 1812 da ake amfani da shi da dama for steam engines in mining industries. Shi ne similar to a Lancashire boiler but has only one flue instead of two.
Locomotive boiler shi ne wata na horizontal fire tube boiler da internal furnace da large number of fire tubes. Suna da extension at one end called the firebox, which houses the grate and provides extra heating surface area. Suna da superheater da take increase the temperature and dryness of the steam.
Locomotive boiler suna iya samun high-pressure steam (up to 25 bar) da high capacity (up to 9000 kg per hour). Shi ne fast in steaming up and responsive to load changes. An amfani da shi mainly for powering steam locomotives until they were replaced by diesel or electric engines.
Scotch marine boiler shi ne wata na horizontal fire tube boiler da one or more large cylindrical shells containing two or more furnaces and several fire tubes. Suna da external wet back chamber da take improve its efficiency and reduce its weight.
Scotch marine boiler suna iya samun high-pressure steam (up to 30 bar) da high capacity (up to 27000 kg per hour). Shi ne robust in construction and suitable for marine applications, kamar kula, kudin zabe, da kuma propulsion.
Wadannan ne fafin boiler na fire tube:
