ʻO ka paipu paila he ʻano o ka paipu ʻole. ʻO keʻano o ka hanaʻana heʻano like ia me ka paipu liʻiliʻi, akā aia nā koi koʻikoʻi ma keʻano o ke kila i hoʻohanaʻia no ka hanaʻana i ka paipu kila. E like me ka hoʻohana ʻana i ka mahana, ua māhele ʻia i ʻelua ʻano o ka pahu paila maʻamau a me ka pahu paila kiʻekiʻe.

ʻO ka waiwai mechanical o ka paila boiler he mea kuhikuhi nui e hōʻoia i ka lawelawe hope loa o ke kila. Pili ia i ka hoʻohui kemika o ke kila a me ka ʻōnaehana mālama wela. I ke kila paipu maʻamau, e like me ka hoʻohana 'okoʻa koi, stipulated i ka tensile waiwai (tensile ikaika, hua ikaika a iʻole ka hua helu, elongation) a me ka paakiki, toughness nā hōʻailona, ​​a me ka mea hoʻohana koi o ke kiʻekiʻe a me ka haʻahaʻa wela hana.

① ʻO ka wela o ka paila paila ma lalo o 350 ℃, hana nui ʻia ka paipu home ma No. 10, ʻaʻole. 20 paipu kalapona ʻōwili wela a paipu huki anu.

Paipu paila

Paipu paila

(2) Hoʻohana pinepine ʻia nā paipu paila kiʻekiʻe ma lalo o nā kūlana kiʻekiʻe a me nā kūlana kiʻekiʻe. Ma lalo o ka hana o ke kinoea flue wela kiʻekiʻe a me ka mahu wai, e hiki mai ka oxidation a me ka corrosion. Pono ka paipu kila e loaʻa ka ikaika lōʻihi kiʻekiʻe, ke kūpaʻa ʻana i ka corrosion oxidation kiʻekiʻe a me ke kūpaʻa microstructure maikaʻi.