Pono nā mea o nā ʻāpana nui o ka valve e noʻonoʻo mua i nā waiwai kino (ka wela, kaomi) a me nā waiwai kemika (corrosivity) o ka mea hana.I ka manawa like, pono nō hoʻi e ʻike i ka maʻemaʻe o ka waena (inā he mau ʻāpana paʻa).Eia kekahi, e kuhikuhi pū ʻia nā hoʻoponopono kūpono a me nā koi o ka mokuʻāina a me nā keʻena mea hoʻohana.
Hiki i nā ʻano mea he nui ke hoʻokō i nā koi lawelawe o nā valve ma lalo o nā kūlana hana.Eia naʻe, hiki ke loaʻa ke ola lawelawe ʻoi aku ka maikaʻi a me ka hana maikaʻi loa o ka valve ma ke koho kūpono a kūpono o nā mea valve.
Mea maʻamau o ke kino valve
1. Hoʻohana nui ʻia nā kiwi hao hina hina ma nā ʻano ʻoihana like ʻole ma muli o ko lākou kumukūʻai haʻahaʻa a me ka laulā o ka noi.Hoʻohana pinepine ʻia lākou i ka wai, ka mahu, ka aila a me ke kinoea e like me ke ʻano, a hoʻohana nui ʻia i ka ʻoihana kemika, ka paʻi ʻana a me ke kala ʻana, ka ʻaila, ka textile a me nā huahana ʻoihana ʻē aʻe he liʻiliʻi a ʻaʻohe hopena i ka pollution hao.
Ua pili ia i ka haʻahaʻa kaomi kiwikā me ka hana wela o - 15 ~ 200 ℃ a me ka nominal kaomi o PN ≤ 1.6MPa.
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2. Pili ka hao malleable ʻeleʻele i nā puʻupuʻu liʻiliʻi a me ka haʻahaʻa me ka mahana hana ma waena o - 15~300 ℃ a me ke kaomi nominal PN ≤ 2.5MPa.
ʻO nā media kūpono he wai, wai kai, kinoea, amonia, etc.
3. Nodular cast iron ʻO ka Nodular cast iron kekahi ʻano o ka hao, ʻo ia ke ʻano o ka hao.Hoʻololi ʻia ka graphite flake i ka hao hina hina e ka graphite nodular a i ʻole ka graphite globular.ʻO ka hoʻololi ʻana o ke ʻano o loko o kēia metala e ʻoi aku ka maikaʻi o kāna mau mea mīkini ma mua o ka hao hina hina, ʻaʻole ia e hōʻino i nā waiwai ʻē aʻe.No laila, ʻoi aku ka kiʻekiʻe o ke kaomi ʻana o nā kiwi i hana ʻia me ka hao ductile ma mua o nā mea i hana ʻia me ka hao hina.Hoʻopili ia i nā puʻupuʻu haʻahaʻa a me ka haʻahaʻa haʻahaʻa me kahi mahana hana o - 30 ~ 350 ℃ a me kahi kaomi nominal o PN ≤ 4.0MPa.
ʻO ke kikowaena kūpono ka wai, ka wai kai, ka mahu, ka ea, ke kinoea, ka aila, etc.
4. ʻO ke kila kalapona (WCA, WCB, WCC) i hoʻokumu mua i ke kila hoʻoheheʻe ʻia no ka hoʻokō ʻana i nā pono hana o ka poʻe ma waho o ka hiki o nā kiwi hao hao a me nā kiwi keleawe.Eia nō naʻe, ma muli o ka maikaʻi o ka lawelawe ʻana o nā pahu kila kalapona a me ko lākou kūpaʻa ikaika ʻana i nā koʻikoʻi i hoʻokumu ʻia e ka hoʻonui ʻana i ka wela, ka hopena hopena a me ka deformation pipeline, ua hoʻonui ʻia kā lākou hoʻohana ʻana, maʻamau me nā kūlana hana o nā pahu hao hao a me nā pahu keleawe.
Ua pili ia i ka waena a me ke kiʻekiʻe puʻe kiwikā me ka hana wela o - 29 ~ 425 ℃.ʻO ka mahana o 16Mn a me 30Mn aia ma waena - 40 ~ 400 ℃, i hoʻohana pinepine ʻia e pani i ka ASTM A105.ʻO ke kikowaena kūpono ʻo ka mahu saturated a me ka mahu wela loa.ʻO nā huahana aila kiʻekiʻe a me ka haʻahaʻa haʻahaʻa, ke kinoea liquefied, ka ea paʻa, ka wai, ke kinoea maoli, etc.
5. Hiki ke hoʻohana ʻia ke kila kalapona haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa a me ka nickel alloy steel i ka pae wela ma lalo o ka ʻole, akā ʻaʻole hiki ke hoʻonui ʻia i ka wahi cryogenic.He kūpono nā ʻūpā i hana ʻia i kēia mau mea no nā media e like me ke kai, carbon dioxide, acetylene, propylene a me ka ethylene.
Ua pili ia i ka haʻahaʻa-mehana kiwikā me ka hana wela ma waena o - 46 ~ 345 ℃.
6. Hiki ke hoʻohana 'ia nā valve i hana 'ia me ke kila kila ha'aha'a (WC6, WC9) a me ke kila kila ha'aha'a (e like me ke kila carbon molybdenum a me ke kila chromium molybdenum) no ka nui o nā mea hana, me ka mahu saturated a superheated, ke anu a me ka aila wela, ke kinoea maoli. a me ka ea.ʻO ka mahana hana o ka pahu kila kalapona hiki ke 500 ℃, a ʻo ka mea haʻahaʻa haʻahaʻa kila kila ma luna o 600 ℃.Ma ke kiʻekiʻe wela, ʻoi aku ka kiʻekiʻe o nā mea mechanical o ke kila hao haʻahaʻa ma mua o ke kila kalapona.
ʻO nā kiʻekiʻe wela a me nā kiʻekiʻe kiʻekiʻe kiʻekiʻe e pili ana i ka mea corrosive me ka mahana hana ma waena o - 29 ~ 595 ℃;Hoʻopili ʻia ʻo C5 a me C12 i nā kīwī wela kiʻekiʻe a me ke kaomi kiʻekiʻe no ka media corrosive me ka mahana hana ma waena o - 29 a me 650 ℃.
7. Na kila kuhiliʻole Austenitic Loaʻa i ka 18% chromium a me 8% nickel nā kila kuhiliʻole Austenitic.Hoʻohana pinepine ʻia ʻo 18-8 austenitic stainless steel e like me ke kino valve a me nā mea pāpale ma lalo o ke kiʻekiʻe a me ka haʻahaʻa haʻahaʻa a me nā kūlana corrosion ikaika.ʻO ka hoʻohui ʻana i ka molybdenum i 18-8 matrix stainless steel a me ka hoʻonui iki ʻana i ka nickel content e hoʻonui nui i kona kūpaʻa ʻana.Hiki ke hoʻohana nui ʻia nā valves i hana ʻia i ka ʻoihana kemika, e like me ka lawe ʻana i ka acetic acid, nitric acid, alkali, bleach, meaʻai, wai huaʻai, carbonic acid, tanning wai a me nā huahana kemika he nui.
No ka hoʻopili ʻana i ka pae wela kiʻekiʻe a hoʻololi hou i ka haku mele, hoʻohui ʻia ka niobium i ke kila kila, i ʻike ʻia ʻo 18-10-Nb.Hiki i ka mahana ke 800 ℃.
Hoʻohana mau ʻia ke kila kila Austenitic i nā haʻahaʻa haʻahaʻa loa a ʻaʻole e lilo i palupalu, no laila kūpono loa nā kiwi i hana ʻia me kēia mea (e like me 18-8 a me 18-10-3Mo) no ka hana ʻana i nā haʻahaʻa haʻahaʻa.No ka laʻana, lawe ia i ke kinoea wai, e like me ke kinoea maoli, biogas, oxygen a me ka nitrogen.
Ua pili ia i na kiwi me ka corrosive medium me ka wela hana ma waena o - 196 ~ 600 ℃.ʻO ke kila kila Austenitic kekahi mea kūpono loa.
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8. ʻO nā plastik a me nā seramika nā mea ʻole metala.ʻO ka hiʻohiʻona nui loa o nā kiwi mea hao ʻole ko lākou kūpaʻa ʻana i ka corrosion ikaika, a loaʻa nō hoʻi nā pōmaikaʻi ʻaʻole hiki ke loaʻa i nā kiwi mea metala.Hoʻohana maʻamau ia i nā media corrosive me ke kaomi nominal PN ≤ 1.6MPa a me ka mahana hana ʻaʻole iʻoi aku ma mua o 60 ℃, a pili pū kekahi SINGLE UNION BALL VALVE i ka ʻoihana lako wai.Pono nā mea o nā ʻāpana nui o ka valve e noʻonoʻo mua i nā waiwai kino (ka wela, kaomi) a me nā waiwai kemika (corrosivity) o ka mea hana.I ka manawa like, pono nō hoʻi e ʻike i ka maʻemaʻe o ka waena (inā he mau ʻāpana paʻa).Eia kekahi, e kuhikuhi pū ʻia nā hoʻoponopono kūpono a me nā koi o ka mokuʻāina a me nā keʻena mea hoʻohana.
Hiki i nā ʻano mea he nui ke hoʻokō i nā koi lawelawe o nā valve ma lalo o nā kūlana hana.Eia naʻe, hiki ke loaʻa ke ola lawelawe ʻoi aku ka maikaʻi a me ka hana maikaʻi loa o ka valve ma ke koho kūpono a kūpono o nā mea valve.
Ka manawa hoʻouna: Feb-28-2023