He aha ka asila lāʻau pāpaʻi?
Hoʻopaʻa nā sila shaft i ka puka ʻana mai o ka wai mai ka ʻau kaʻa ʻana a i ʻole ke kumu.He mea koʻikoʻi kēia no nā pauma a ma ke ʻano o ka pauma centrifugal e loaʻa nā koho hoʻopaʻa sila: nā packing, nā sila lehelehe, a me nā ʻano sila mechanical āpau - hoʻokahi, pālua a me ka tandem me nā sila pahu pahu.Loaʻa nā paila hoʻoneʻe Rotary maikaʻi e like me nā ʻōpala a me nā pā vane me ka hoʻopili ʻana, lehelehe a me ka hoʻonohonoho sila ʻana.ʻO nā pāpaʻi pānaʻi e hoʻopuka i nā pilikia hoʻopaʻa sila ʻokoʻa a hilinaʻi maʻamau i nā sila lehelehe a i ʻole nā packing.ʻO kekahi mau hoʻolālā, e like me nā paila hoʻokele magnetic, nā paila diaphragm a i ʻole nā puma peristaltic, ʻaʻole koi i nā sila shaft.ʻO kēia mau mea i kapa ʻia ʻo 'sealless' pumps e loaʻa nā sila paʻa e pale i ka leaka wai.
He aha nā ʻano nui o nā sila lāʻau pump?
Hoʻopili
ʻO ka paʻi (ʻike pū ʻia ʻo shaft packing a gland packing) he mea palupalu, i wili pinepine ʻia a i hana ʻia i mau apo.Hoʻokomo ʻia kēia i loko o kahi keʻena a puni ka pahu kaʻa i kapa ʻia ʻo ka pahu hoʻopiha e hana i kahi sila (Figure 1).ʻO ka maʻamau, hoʻopili ʻia ka hoʻoemi i ka axially i ka packing akā hiki ke hoʻopili ʻia me ka radially e kahi mea hydraulic.
ʻO ka mea maʻamau, ua hana ʻia ka paʻi ʻana mai ka ʻili, ke kaula a i ʻole ke olonā akā i kēia manawa he mau mea inert e like me PTFE hoʻonui, graphite compressed, a me nā elastomers granulated.ʻO ka hoʻopaʻa ʻana he mea waiwai a hoʻohana mau ʻia no nā wai mānoanoa a paʻakikī e hoʻopaʻa ʻia e like me resins, tar a i ʻole adhesives.Eia nō naʻe, he ala hoʻopaʻa maikaʻi ʻole ia no nā wai lahilahi, ʻoi aku hoʻi i nā kaomi kiʻekiʻe.ʻAʻole hiki ke hoʻopau ʻia ka paʻi ʻana, a hiki ke hoʻololi koke ʻia i ka wā e pani ʻia ai.
Pono ka lubrication e hoʻopaʻa i nā sila e pale aku i ke kūkulu ʻia ʻana o ka wela frictional.Hāʻawi pinepine ʻia kēia e ka wai i hoʻomoʻa ʻia e lele liʻiliʻi ma o ka mea packing.Hiki ke ʻino kēia a inā ʻaʻole hiki ke ʻae ʻia nā wai ʻino, ʻā a i ʻole nā mea ʻawaʻawa.I kēia mau hihia, hiki ke hoʻohana ʻia kahi lubricant palekana, waho.ʻAʻole kūpono ka paʻi ʻana no ka hoʻopaʻa ʻana i nā pamu i hoʻohana ʻia no nā wai i loaʻa nā ʻāpana abrasive.Hiki ke hoʻokomo ʻia nā mea paʻa i loko o ka mea hoʻopili a hiki i kēia ke hōʻino i ke kumu pāpaʻi a i ʻole ka paia pahu pahu.
Sila lehelehe
ʻO nā sila lehelehe, ʻike ʻia hoʻi ʻo radial shaft seals, he mau mea elastomeric poepoe wale nō i paʻa ma kahi e kūʻē ai i ke kumu hoʻokele e kahi hale waho paʻa (Figure 2).Puka mai ke sila mai ka pilina pili ma waena o ka 'lip' a me ke kumu a ho'oikaika pinepine 'ia e ka puna.He mea maʻamau nā lehelehe lehelehe ma ka ʻoihana hydraulic a hiki ke loaʻa ma nā pumps, hydraulic motors, a me nā mea hana.Hāʻawi pinepine lākou i kahi sila hope no nā ʻōnaehana sila ʻē aʻe e like me nā sila mechanical ʻO nā sila lehelehe maʻamau i kaupalena ʻia i nā haʻahaʻa haʻahaʻa a ʻilihune hoʻi no nā wai lahilahi, ʻaʻole lubricating.Ua hoʻohana maikaʻi ʻia nā ʻōnaehana lehelehe he nui e kūʻē i nā ʻano wai viscous, non-abrasive.ʻAʻole kūpono nā sila lehelehe no ka hoʻohana ʻana me nā wai abrasive a i ʻole nā wai i loko o nā mea paʻa no ka mea hiki ke ʻaʻahu a hiki i nā pōʻino liʻiliʻi ke alakaʻi i ka hāʻule.
Sila mīkini
Hoʻokahi a ʻoi aʻe paha o nā maka o nā maka i hoʻomaʻamaʻa maikaʻi ʻia, hoʻokahi paʻa i loko o ka hale a hoʻokahi e hoʻololi ana, i hoʻopili ʻia i ke kumu hoʻokele (Figure 3).Pono nā maka i ka lubrication, ma o ka wai i hoʻomoʻa ʻia a i ʻole ma ka wai pale.ʻO ka hopena, pili wale nā maka sila i ka wā e hoʻomaha ai ka paila.I ka wā o ka hoʻohana ʻana, hāʻawi ka wai lubricating i kahi kiʻi ʻoniʻoni hydrodynamic ma waena o nā maka sila kūʻē, e hōʻemi ana i ka ʻaʻahu a me ke kōkua ʻana i ka wela.
Hiki i nā hōʻailona mīkini ke mālama i ka nui o nā wai, viscosities, kaomi, a me nā mahana.Eia naʻe, ʻaʻole pono e maloʻo kahi sila mechanical.ʻO kahi pōmaikaʻi nui o nā ʻōnaehana seal mechanical ʻo ia ʻaʻole ʻāpana o ka mīkini hoʻopaʻa ʻana o ka pahu hoʻokele a me ka casing (e like me ke ʻano o ka paʻi ʻana a me nā sila lehelehe) a no laila ʻaʻole hiki ke komo.
Sila pālua
Hoʻohana ʻia nā sila ʻelua i nā sila mechanical ʻelua i hoʻonoho ʻia i hope (Figure 4).Hiki ke hoʻoheheʻe ʻia ka wahi i loko o nā ʻaoʻao ʻelua o nā maka sila i hydraulically me kahi wai pale i hiki i ke kiʻiʻoniʻoni ma nā maka sila e pono ai no ka lubrication ʻo ia ka wai pale a ʻaʻole ka mea e paʻi ʻia.Pono nō hoʻi e kūpono ka wai pale me ka mea i hoʻomake ʻia.ʻOi aku ka paʻakikī o nā sila ʻelua i ka hana ma muli o ka pono o ka pressurization a hoʻohana maʻamau i ka wā e pono ai ka pale ʻana i nā limahana, nā ʻāpana o waho a me ke kaiapuni a puni mai nā wai pōʻino, ʻona a i ʻole ke ahi.
Sila Tandem
Ua like nā sila Tandem me nā sila ʻelua akā ʻo nā pūʻulu ʻelua o nā sila mechanical ke alo i ka ʻaoʻao like ma mua o ke kua i hope.ʻO ka sila ʻaoʻao huahana wale nō e hoʻololi i ka wai i hoʻomake ʻia akā ʻo ka hū ʻana ma nā alo o ka sila e hoʻohaumia i ka lubricant pale.Loaʻa kēia i nā hopena no ka sila ʻaoʻao o ka lewa a me ke kaiapuni a puni.
Sila pahu pahu
ʻO kahi sila pahu pahu he pūʻolo i hui mua ʻia o nā ʻāpana mechanical seal.Hoʻopau ke kūkulu pahu pahu i nā pilikia hoʻonohonoho e like me ka pono e ana a hoʻonohonoho i ka hoʻopili puna.Mālama pū ʻia nā maka sila mai ka pōʻino i ka wā e hoʻokomo ai.I ka hoʻolālā ʻana, hiki i kahi sila pahu pahu ke hoʻonohonoho hoʻokahi, pālua a tandem paha i loko o kahi gland a kūkulu ʻia ma luna o ka lima.
Sila keakea kinoea.
ʻO kēia nā noho ʻelua ʻano pahu pahu me nā maka i hoʻolālā ʻia e kaomi ʻia me ka hoʻohana ʻana i ke kinoea inert ma ke ʻano he pale, e pani ana i ka wai lubricating maʻamau.Hiki ke ho'oka'awale a pa'a paha nā maka sila i ka wā e hana ai ma ka ho'ololi 'ana i ke kaomi kinoea.Hiki i kahi wahi kinoea liʻiliʻi ke pakele i loko o ka huahana a me ka lewa.
Hōʻuluʻulu manaʻo
Kāohi ʻia nā sila shaft i ka puka ʻana mai o ka wai mai ka pahu kaʻa ʻana a i ʻole ka pahu hoʻi o ka pā.Loaʻa pinepine nā koho hoʻopaʻa paʻa: packings, sila lehelehe, a me nā ʻano like ʻole o nā sila mechanical– hoʻokahi, pālua a me ka tandem me nā sila pahu pahu.
Ka manawa hoʻouna: Mei-18-2023