Nā umu ʻano bele

ʻIke laulā:
Hoʻohana nui ʻia nā umu ʻano bele no ka hoʻomehana ʻana a me ka mālama ʻana i ka wela, no laila he mau umu wela like ʻole ia. Noho ka mahana ma waena o 650 a me 1100 ℃ ma ka hapa nui, a loli ia e ka manawa i kuhikuhi ʻia i loko o ka ʻōnaehana hoʻomehana. Ma muli o ka hoʻouka ʻana o nā umu ʻano bele, aia ʻelua ʻano: ka umu ʻano bele huinaha a me ka umu ʻano bele poepoe. ʻO nā kumu wela o nā umu ʻano bele he kinoea, a ukali ʻia e ka uila a me ka ʻaila māmā. Ma ke ʻano laulā, ʻekolu ʻāpana o nā umu ʻano bele: kahi uhi waho, kahi uhi o loko, a me kahi kapuahi. Hoʻonohonoho pinepine ʻia ka mea puhi ma luna o ka uhi o waho i hoʻopaʻa ʻia me kahi papa wela, ʻoiai ua kau ʻia nā ʻāpana hana i loko o ka uhi o loko no ka hoʻomehana a me ka hoʻomaʻalili ʻana.

He paʻa maikaʻi ka ea o nā umu ʻano bele, haʻahaʻa ka nalowale wela, a kiʻekiʻe ka pono o ka wela. Eia kekahi, ʻaʻole pono lākou i ka puka umu a i ʻole kahi mīkini hāpai a me nā ʻano hana hoʻoili mīkini like ʻole, no laila mālama lākou i nā kumukūʻai a hoʻohana nui ʻia i loko o nā umu mālama wela o nā ʻāpana hana.
ʻO ʻelua mau koi koʻikoʻi loa no nā mea uhi umu, ʻo ia ka māmā a me ka pono o ka ikehu o nā uhi hoʻomehana.

Nā pilikia maʻamau me ka refracto māmā kuʻunanā pōhaku lepo a i ʻole nā ​​​​​​mea hoʻoheheʻe māmānā ʻano hana:

1. ʻO nā mea paʻa me ka nui o ke kaumaha kikoʻī (ʻo ka maʻamau, ʻo nā piliki paʻa māmā maʻamau he 600KG/m3 a ʻoi aku paha ke kaumaha kikoʻī; ʻo ka mea i hoʻoheheʻe ʻia he 1000 KG/m3 a ʻoi aku paha) pono i kahi ukana nui ma ke ʻano kila o ka uhi umu, no laila e hoʻonui ʻia ka hoʻohana ʻana o ke ʻano kila a me ka hoʻopukapuka kālā i ke kūkulu ʻana i ka umu.

2. Hoʻopilikia ka uhi waho nui i ka hiki ke hāpai a me ka ākea o ka papahele o nā hale hana hana.

3. Hoʻohana ʻia ka umu ʻano bele ma nā mahana like ʻole, a he nui ka mana wela kikoʻī o nā piliki paʻakikī māmā a i ʻole nā ​​​​​​piliki hoʻoheheʻe māmā, kahi conductivity thermal kiʻekiʻe, a me ka hoʻohana ʻana i ka ikehu nui.

Eia nō naʻe, he haʻahaʻa ka conductivity thermal o nā huahana fiber refractory CCEWOOL, haʻahaʻa ka mālama wela, a haʻahaʻa ka nui o ka nui, ʻo ia nā kumu nui no kā lākou hoʻohana ākea i nā uhi hoʻomehana. Eia nā ʻano:

1. He laulā ākea o ka mahana hana a me nā ʻano noi like ʻole
Me ka hoʻomohala ʻana o ka hana ʻana a me ka ʻenehana fiber keramika CCEWOOL, ua hoʻokō nā huahana fiber keramika CCEWOOL i ka serialization a me ka functionalization. Ma ke ʻano o ka mahana, hiki i nā huahana ke hoʻokō i nā koi o nā mahana like ʻole mai 600 ℃ a i 1500 ℃. Ma ke ʻano o ke ʻano, ua hoʻomohala mālie nā huahana i nā ʻano hana lua a i ʻole nā ​​​​huahana hana hohonu mai ka pulupulu kuʻuna, nā pale, nā huahana i manaʻo ʻia i nā modula fiber, nā papa, nā ʻāpana ʻano kūikawā, ka pepa, nā lole fiber a pēlā aku. Hiki iā lākou ke hoʻokō piha i nā koi o nā umu ʻoihana no nā huahana fiber keramika ma nā ʻoihana like ʻole.
2. Ka nui o ka leo liʻiliʻi:
ʻO ka nui o ka nui o nā huahana fiber seramika he 96 ~ 160kg/m3 ma ke ʻano maʻamau, ʻo ia hoʻi ma kahi o 1/3 o nā piliki māmā a me 1/5 o ka mea hiki ke hoʻoheheʻe ʻia me ka refractory māmā. No ka umu i hoʻolālā hou ʻia, ʻo ka hoʻohana ʻana i nā huahana fiber seramika ʻaʻole hiki ke mālama wale i ke kila, akā e maʻalahi hoʻi ka hoʻouka ʻana/wehe ʻana a me ka lawe ʻana, e hoʻoikaika ana i ka holomua o ka ʻenehana umu ʻoihana.
3. Ka liʻiliʻi o ka mana wela a me ka mālama ʻana i ka wela:
Ke hoʻohālikelike ʻia me nā piliki refractory a me nā piliki insulation, ʻoi aku ka haʻahaʻa o ka hiki o nā huahana fiber ceramic, ma kahi o 1/14-1/13 o nā piliki refractory a me 1/7-1/6 o nā piliki insulation. No ka umu bele-ʻano hana pinepine ʻia, hiki ke mālama ʻia ka nui o ka hoʻohana ʻana i ka wahie e pili ʻole ana i ka hana ʻana.
4. Kūkulu maʻalahi, wā pōkole
Ma muli o ka elasticity maikaʻi loa o nā pale a me nā modula o ka fiber keramika, hiki ke wānana ʻia ka nui o ke kaomi ʻana, a ʻaʻohe pono e waiho i nā hono hoʻonui i ka wā o ke kūkulu ʻana. ʻO ka hopena, ua maʻalahi a maʻalahi ke kūkulu ʻana, hiki ke hoʻopau ʻia e nā limahana akamai maʻamau.
5. Hana me ka ʻole o ka umu
Ma ka hoʻohana ʻana i ka uhi piha-fiber, hiki ke hoʻomehana koke ʻia nā umu i ka mahana hana inā ʻaʻole i kaupalena ʻia e nā ʻāpana metala ʻē aʻe, kahi e hoʻomaikaʻi nui ai i ka hoʻohana pono ʻana i nā umu ʻoihana a hoʻemi i ka hoʻohana ʻana i ka wahie e pili ana i ka hana ʻole.
6. Haʻahaʻa loa ka hoʻokele wela
ʻO ka olonā seramika kahi hui pū ʻana o nā olonā me ke anawaena o 3-5um, no laila he haʻahaʻa loa kona conductivity thermal. No ka laʻana, i ka wā e hiki ai i kahi kapa olonā alumini kiʻekiʻe me ka nui o 128kg/m3 i 1000℃ ma ka ʻili wela, ʻo kona coefficient hoʻoili wela he 0.22 wale nō (W/MK).
7. Paʻa kemika maikaʻi a me ke kū'ē'ē'ana i ka ea ea:
Hiki ke hoʻopau wale ʻia ka olonā seramika i loko o ka waikawa phosphoric, ka waikawa hydrofluoric, a me ka alkali wela, a kūpaʻa ia i nā mea ʻino ʻē aʻe. Eia kekahi, hana ʻia nā modula olonā seramika ma ka pelu mau ʻana i nā pale olonā seramika ma kahi lakio compression. Ma hope o ka mālama ʻia ʻana o ka ʻili, hiki i ke kūpaʻa ʻana o ka makani i ka 30m/s.