Nūhou ʻOihana

Ma ke kahua, ʻoi aku ka nui o ka hilinaʻi ma mua o nā mea ʻē aʻe. He ʻoiaʻiʻo loa kēlā i nā noi aila a me ke kinoea ma ʻAmelika ʻĀkau, kahi i hōʻike ʻia ai nā valves i ke kaomi kiʻekiʻe, nā wai ʻino, a me ke kaʻapuni wela i kēlā me kēia lā.

I ka neʻe ʻana o nā hale hana ʻoihana i nā hana akamai—i hoʻokele ʻia e ka automation, ka nānā mamao, a me ka mālama wānana—ke hoʻoponopono hou ʻia nei nā ʻōnaehana valve me nā actuators akamai a me nā ʻāpana kaohi.

ʻO ke apo kākoʻo o ia mau ʻāpana, ma ke ʻano sila holoʻokoʻa no nā ʻāpana koʻikoʻi 'huna'. ʻAʻole nui ka poʻe hoʻohana e nānā nui iā ia, akā ʻo ka ʻoiaʻiʻo, i ka wā ʻaʻole i hoʻonohonoho ʻia ka hoʻolālā a i ʻole ka hana ʻana, e loaʻa ka hopena nui o ka hoʻokaʻawale ʻana o ka ikaika compression o ka sila noho valve, apo PTFE, ʻoi aku ka maopopo i nā loli kiʻekiʻe a i ʻole ka mahana i ke kaiapuni.

I loko o ke ʻano o nā kiwikā pōpō a me nā kiwikā puka, ʻo ka pahu hoʻopihapiha ma ke ʻano he ʻāpana koʻikoʻi o ka ʻōnaehana sila kumu, ʻoiai ke ʻano paʻa, akā ke hana pololei nei i ka hana nui o ka pale ʻana i ka liki ʻana o ka pāpāho.

ʻO ke koʻokoʻo haʻahaʻa o kahi kiwikā pōpō paʻa he mea maʻalahi ke nānā ʻole ʻia akā he ʻāpana pipiʻi ke kuhihewa. Inā paha e wili mālie ana ke kumu pōpō a inā paha e neʻe ʻia ke axis a i ʻole, hilinaʻi pinepine ia i ka manaʻo ua hoʻomalu ʻia ka nui a me ke kikowaena o kēia koʻokoʻo haʻahaʻa i nā pae mīkini a me ka ʻākoakoa.

Ma hope o ka hana ʻana i nā papahana valve no kēia mau makahiki, i ka ʻoiaʻiʻo, ua ʻike au i nā hihia he nui o nā pilikia noho valve. ʻO ka hapa nui o ka manawa, hoʻopiʻi ka mea hoʻohana e pili ana i ka liki ʻana o ka valve, ʻo ka ʻoiaʻiʻo, ʻaʻole ia he pilikia spool, akā ua lōʻihi ka pau ʻana o ka noho valve.

ʻO ke kino o ka valve ka ʻāpana maʻalahi loa a maʻalahi hoʻi e hoʻopoina ʻia o ka valve. Me he mea lā maʻalahi ke ʻano, ʻoiai, mai ke ʻano hoʻolei ʻana, ke koho ʻana i nā mea a hiki i ka pololei o ke ana, nā mea a pau e hoʻoholo ai inā hiki i ka valve ke holo no ka manawa lōʻihi me ka ʻole o ka leakage, me ka ʻole o ka deformation.

Ma nā ʻōnaehana hoʻomalu nui i ka ʻoihana metallurgical, pili pono ka hana o nā valves pōpō a me nā mea hoʻokomo valve puka i ka paʻa o ka hana o nā pipeline umu a me nā ʻōnaehana wai hoʻomaʻalili.

I loko o ke ʻano o ka valve, ʻaʻole like ka paʻakikī o ke kumu valve, akā inā ʻoe i holo ma o ka ʻōnaehana wela kiʻekiʻe a me ke kaomi kiʻekiʻe, ʻike ʻoe ʻo ia kekahi o nā ʻāpana pilikia loa.

ʻAʻole pilikia nui ke ʻano o ka pāpale i nā kiwikā liʻiliʻi, akā i ka wā ma luna o DN400, maʻalahi ka ʻike ʻia ʻana o ka hewa o ka ʻākoakoa. He nui nā kiwikā pōpō a i ʻole nā ​​kiwikā puka ma kahi o ka papahana i loaʻa ka wehe ʻana a me ka pani ʻana a i ʻole ka hāʻule ʻana o ka hoʻopaʻa ʻana, a pili pū lākou a pau i ka mismatch a i ʻole ka ʻokoʻa o ka uhi kiwikā.