Nā Mita Kahe o ke Kaʻa: Ke Ana Pololei no nā Wai Viscous a me nā Noi ʻOihana

Ma ka puʻuwai o ka hana o ka mika kahe o ke kia, ʻo ia kona kumumanaʻo hoʻoneʻe maikaʻi (PD), kahi ʻano hana maʻalahi akā pono e helu pololei ana i ka nui o ka wai. ʻO ke kumu o ka mika he ʻelua a ʻoi aku paha mau kia e hoʻopaʻa ana (i hana pinepine ʻia me ke kila kila, PTFE, a i ʻole ka palaki paʻakikī) i loko o kahi keʻena i hana ʻia me ka mīkini kikoʻī. Ke komo ka wai i loko o ke keʻena, hoʻopiha ia i nā hakahaka ma waena o nā niho kia, e koi ana i nā kia e wili. Hoʻoneʻe kēlā me kēia wili o nā kia i kahi nui paʻa o ka wai i ʻike ʻia—i kapa ʻia ʻo ka "mea mika"—a laila hoʻouna ʻia i kahi sensor (mechanical a uila paha) e hoʻololi i ka neʻe wili i kahi hōʻailona hiki ke ana ʻia. Hana ʻia kēia hōʻailona e helu i ka nui holoʻokoʻa a i ʻole ka wikiwiki o ke kahe o ka wai, me ka hilinaʻi liʻiliʻi i nā mea o waho e like me ke alakaʻi wai a i ʻole ke ʻano kahe.

ʻO kekahi o nā pono kaulana loa o nā mika kahe kia ʻo ia ko lākou pololei loa, ʻoiai no nā noi viscous a me nā noi kahe haʻahaʻa. Loaʻa i ka hapa nui o nā mika kahe kia ʻoihana ka pololei o ±0.1% a i ±0.5% o ka waiwai i ana ʻia, e ʻoi aku ana ma mua o nā ʻano mika kahe ʻē aʻe i nā hiʻohiʻona kahi e koʻikoʻi ai ka pololei. No ka laʻana, i nā laina hōʻuluʻulu kaʻa, hoʻohana ʻia nā mika kahe kia e ana i ka nui pololei o ka ʻaila lubricating i hoʻokomo ʻia i loko o nā ʻāpana mīkini—ʻo ka liʻiliʻi o ka ʻaila e hoʻoweliweli i ka ʻaʻahu mua ʻana, ʻoiai ʻo ka nui o ka ʻaila e hoʻonele i nā kumuwaiwai a hiki ke hoʻoulu i ka wela nui. ʻO ka hiki o ka mika ke mālama i ka pololei ma waena o kahi ākea ākea o ka viscosity (mai 1 cP a i 1,000,000 cP a ʻoi aku paha) e kūpono ia no ia mau hana, ʻoiai ʻo nā loli viscosity he hopena liʻiliʻi loa ia i ka neʻe paʻa o nā kia.

ʻO kekahi pōmaikaʻi koʻikoʻi ko lākou hoʻolālā paʻa a me nā koi mālama haʻahaʻa. Hana ʻia nā kia a me ke keʻena e hoʻopaʻa ana mai nā mea paʻa e kūʻē i ka pala, ka ʻānai ʻana, a me ka hōʻino kemika—he mea nui no ka lawelawe ʻana i nā wai ikaika e like me nā mea hoʻoheheʻe ʻoihana a i ʻole nā ​​syrups papa meaʻai. ʻAʻole e like me nā mika kahe turbine, nona nā ʻāpana neʻe palupalu e hiki ke komo, he ʻano maʻalahi a paʻa nā mika kahe kia me nā ʻāpana liʻiliʻi e hiki ke hāʻule. Hoʻololi kēia kūpaʻa i ke ola lawelawe lōʻihi (pinepine 5-10 mau makahiki me ka hoʻohana pono ʻana) a hoʻemi ʻia ka manawa downtime no ka mālama ʻana. Eia kekahi, he nui nā mika kahe kia hou e hōʻike ana i nā hoʻolālā sila ʻole a i ʻole nā ​​​​​​hui magnetic, e hoʻopau ana i ka pilikia o ka leakage wai—he pōmaikaʻi koʻikoʻi no nā noi e pili ana i nā wai ʻawahia a waiwai nui paha.

ʻOi aku ka maikaʻi o nā mika kahe o ke kinoea i ka versatility ma waena o nā ʻoihana, e hoʻololi ana i nā ʻano wai like ʻole a me nā kūlana hana. Ma ka ʻāpana meaʻai a me ka mea inu, hoʻohana ʻia lākou e ana i ke kahe o nā mea viscous e like me ke kokoleka, ka meli, a i ʻole ka pepa tōmato, me nā mea ʻai-grade (e like me ke kila kila 316L a me nā elastomers i ʻāpono ʻia e ka FDA) e hōʻoiaʻiʻo ana i ka hoʻokō ʻana me nā kūlana palekana. Ma ka ʻoihana aila a me ke kinoea, nānā lākou i ke kahe o nā wai hydraulic i nā lako wili a me nā lubricants i nā compressors pipeline, kahi i waiwai nui ai ko lākou kūʻē ʻana i nā kaomi kiʻekiʻe (a hiki i ka 10,000 psi a ʻoi aku paha) a me nā mahana (mai -40°C a i 200°C). ʻOiai ma ka ʻoihana lāʻau lapaʻau, he kuleana ko nā mika kahe o ke kinoea i ka dosing pololei o nā lāʻau viscous a me nā mea hoʻohui, kahi i koʻikoʻi ai ka pololei a me ka sterility.

ʻO ka hoʻohui ʻana me nā ʻōnaehana hoʻomalu ʻoihana kekahi ikaika o nā mika kahe o nā mea hana hou. Loaʻa nā hiʻohiʻona he nui me nā hoʻopuka kikohoʻe (e like me RS485/Modbus, HART, a i ʻole nā ​​​​hōʻailona pulse) a i ʻole nā ​​​​​​hoʻopuka analog (4–20mA), e ʻae ana i ka pilina maʻalahi i nā ʻōnaehana SCADA, nā mea hoʻopaʻa ʻikepili, a i ʻole PLC. Hiki i kēia ke nānā pono i nā kahe o ke kahe i ka manawa maoli, ka hoʻoponopono mamao, a me ka hoʻomalu automated o nā kaʻina hana—no ka laʻana, ka hoʻoponopono ʻana i ke kahe o ka pena i loko o kahi hale hana hana e hōʻoia i ka mānoanoa o ka uhi ʻana. Hoʻokomo pū kekahi mau hiʻohiʻona holomua i nā hiʻohiʻona diagnostic, e like me ka ʻike ʻana i ka ʻaʻahu o nā mea hana a i ʻole nā ​​​​​​makaʻala haumia wai, e kōkua ana i nā mea hana e hoʻoponopono mua i nā pilikia ma mua o ko lākou alakaʻi ʻana i nā hemahema pipiʻi.

ʻOiai ko lākou mau pono he nui, ʻaʻole hiki ke hoʻohana ʻia nā mika kahe o ke kinoea ma nā wahi āpau. ʻAʻole kūpono lākou no nā wai e loaʻa ana nā ʻāpana nui (hiki ke hoʻopaʻa i nā kinoea) a i ʻole nā ​​wai lele loa (hiki ke hana i ka cavitation). Eia nō naʻe, no ka hapa nui o nā wai viscous, maʻemaʻe, a haumia iki paha, ʻo lākou ke koho e pono ai. ʻO ko lākou hiki ke hoʻohui i ka pololei kiʻekiʻe, ka lōʻihi, a me ka versatility e hoʻolilo iā lākou i kihi o ke ana ʻana o ke kahe ʻoihana, e kākoʻo ana i ka pono, ka mālama kālā, a me ka hoʻokō ʻana ma nā noi he nui ʻole.

I ka hōʻuluʻulu manaʻo, ʻoi aku nā mika kahe o ke kinoea ma mua o nā mea hana ana wale nō—he mau ʻāpana koʻikoʻi lākou e hōʻoiaʻiʻo ana i ka pololei a me ka hilinaʻi i nā ʻoihana kahi e hoʻopilikia pololei ai ka mana wai i ka maikaʻi o ka huahana a me ka palekana hana. I ka holomua ʻana o ka ʻenehana, ke hoʻomau nei kā lākou hoʻolālā e ulu, me nā hoʻomaikaʻi ʻana i nā mea hana, ka ʻenehana sensor, a me ka pilina e hoʻomaikaʻi hou aku i kā lākou hana. No nā ʻoihana e ʻimi nei i kahi hopena ana kahe e hiki ke lawelawe i nā wai viscous a me nā hiʻohiʻona kahe haʻahaʻa me ka pololei ʻole, ʻo ka mika kahe o ke kinoea he koho lanakila ʻole.