ʻO 304/304L mea hoʻohui kemika kila kila ʻO nā mea āpau e pono ai ʻoe e ʻike e pili ana i ka HVAC Capillaries Part 1 |2019-12-09

Hoʻohana nui ʻia nā dispenser Capillary i nā noi hale a me nā ʻoihana liʻiliʻi kahi i mau ai ka haʻawe wela ma ka evaporator.ʻO kēia mau ʻōnaehana hoʻi he haʻahaʻa ka kahe o ka refrigerant a hoʻohana maʻamau i nā compressors hermetic.Hoʻohana nā mea hana i nā capillaries no ko lākou maʻalahi a me ke kumu kūʻai haʻahaʻa.Eia kekahi, ʻo ka hapa nui o nā ʻōnaehana e hoʻohana ana i nā capillaries e like me ke ana ʻana ʻaʻole pono i kahi mea hoʻokipa kiʻekiʻe, e hōʻemi hou ana i nā kumukūʻai.

304/304L mea kila kila kila

Kūleʻa kila 304 Coil Tube Chemical Composition

ʻO 304 Stainless Steel Coil Tube kahi ʻano o ka austenitic chromium-nickel alloy.E like me ka mea hao hao 304 Coil Tube Manufacturer, ka mea nui i loko o ia mea Cr (17% -19%), a me Ni (8% -10.5%).I mea e hoʻomaikaʻi ai i kona kūʻē ʻana i ka corrosion, aia nā mea liʻiliʻi o Mn (2%) a me Si (0.75%).

Kuhili 'ole 304 Coil Tube Mechanical Pono

ʻO nā waiwai mechanical o 304 stainless steel coil tube penei:

• Ka ikaika tensile: ≥515MPa
• Ka ikaika hana: ≥205MPa
• Elongation: ≥30%

Nā noi a me ka hoʻohana ʻana i ka paipu kuhili ʻole 304 Coil

• ʻO ka pahu hao hao 304 i hoʻohana ʻia i loko o nā hale kō.
• Hoʻohana ʻia i loko o ka Fertilizer 304 Coil Tube.
• ʻO ke kila kila 304 Coil Tube i hoʻohana ʻia ma ka ʻoihana.
• ʻO ka pahu hao hao 304 i hoʻohana ʻia i nā mea kanu mana.
• ʻO ke kila kila 304 Coil Tube Manufacturer i hoʻohana ʻia i ka meaʻai a me ka waiu
• Hoʻohana ʻia ka ʻaila ʻaila 304 i loko o ka mea kanu ʻaila a me ke kinoea.
• ʻO ke kila kila 304 Coil Tube i hoʻohana ʻia ma ka ʻoihana hana moku.

ʻO nā paipu Capillary ʻaʻole i ʻoi aku ma mua o nā paipu lōʻihi liʻiliʻi a me ka lōʻihi paʻa i hoʻokomo ʻia ma waena o ka condenser a me ka evaporator.Ana maoli ka capillary i ka mea hoʻoheheʻe mai ka condenser a i ka evaporator.Ma muli o ka lōʻihi nui a me ke anawaena liʻiliʻi, i ka wā e kahe ai ka mea hoʻoheheʻe ma loko ona, hiki mai ka friction wai a me ka hāʻule o ke kaomi.ʻO ka ʻoiaʻiʻo, i ka wā e kahe ai ka wai supercooled mai lalo o ka condenser ma o nā capillaries, hiki i kekahi o ka wai ke paila, me ka ʻike ʻana i kēia mau kaomi.ʻO kēia mau hāʻule kaomi e lawe mai i ka wai ma lalo o kona kaomi saturation ma kona wela ma kekahi mau wahi ma ka capillary.Ma muli o ka hoʻonui ʻana o ka wai ke hāʻule ke kaomi.
ʻO ka nui o ka ʻālohilohi wai (inā loaʻa) e hilinaʻi ʻia i ka nui o ka subcooling o ka wai mai ka condenser a me ka capillary ponoʻī.Inā loaʻa ka uila uila, makemake ʻia e pili kokoke ka uila i ka evaporator e hiki ai ke hōʻoia i ka hana maikaʻi loa o ka ʻōnaehana.ʻOi aku ka maʻalili o ka wai mai lalo o ka condenser, ʻoi aku ka liʻiliʻi o ka wai e kahe ana ma ka capillary.Hoʻopili pinepine ʻia ka capillary, hele a hoʻopaʻa ʻia i ka laina hoʻoheheʻe no ka subcooling hou e pale ai i ka wai o ka capillary mai ka paila.Ma muli o ke kaohi ʻana a me ke ana ʻana o ka capillary i ke kahe ʻana o ka wai i ka evaporator, kōkua ia i ka mālama ʻana i ke kaomi ʻana i koi ʻia no ka hana pono o ka ʻōnaehana.
ʻO ka puʻupuʻu capillary a me ka compressor nā ʻāpana ʻelua e hoʻokaʻawale i ka ʻaoʻao kiʻekiʻe mai ka ʻaoʻao haʻahaʻa haʻahaʻa o kahi ʻōnaehana refrigeration.
He ʻokoʻa ka puʻu capillary mai kahi mea ana thermostatic expansion valve (TRV) no ka mea, ʻaʻohe ona ʻāpana neʻe a ʻaʻole e hoʻomalu i ka wela nui o ka evaporator ma lalo o kekahi kūlana haʻahaʻa wela.ʻOiai me ka ʻole o nā ʻāpana neʻe, hoʻololi nā paipu capillary i ka kahe kahe e like me ka hoʻololi ʻana o ka evaporator a/a i ʻole ka ʻōnaehana condenser.ʻO kaʻoiaʻiʻo, loaʻa wale ka maikaʻi maikaʻi loa ke hoʻohuiʻia nā kaomi ma kaʻaoʻao kiʻekiʻe a me ka haʻahaʻa.ʻO kēia no ka hana ʻana o ka capillary ma ka hoʻohana ʻana i ka ʻokoʻa kaomi ma waena o nā ʻaoʻao kiʻekiʻe a me nā ʻaoʻao haʻahaʻa o ka ʻōnaehana refrigeration.Ke piʻi aʻe ka ʻokoʻa puʻe ma waena o nā ʻaoʻao kiʻekiʻe a me nā ʻaoʻao haʻahaʻa o ka ʻōnaehana, e piʻi ka kahe o ka refrigerant.Hoʻohana maikaʻi nā paipu Capillary ma luna o kahi ākea o nā hāʻule kaomi, akā ʻaʻole maikaʻi loa.
No ka mea ua pili ka capillary, evaporator, compressor a me condenser i ka moʻo, pono e like ka kahe kahe o ka capillary me ka wikiwiki o ka pume i lalo.ʻO ia ke kumu i koʻikoʻi ai ka lōʻihi a me ke anawaena o ka capillary i ka helu ʻana i ka evaporation a me nā kaomi condensation he mea koʻikoʻi a pono e like me ka mana o ka paila ma lalo o nā kūlana hoʻolālā like.ʻO ka nui o ka huli ʻana i ka capillary e hoʻopilikia i kona kū ʻana i ke kahe a laila pili i ke koena o ka ʻōnaehana.
Inā lōʻihi loa ka capillary a kūʻē nui, aia ke kaʻina kahe kūloko.Inā liʻiliʻi ke anawaena a i ʻole he nui ka huli ʻana i ka wā e wili ai, ʻoi aku ka liʻiliʻi o ka paipu ma mua o ka compressor.ʻO kēia ka hopena i ka nele o ka aila i loko o ka evaporator, ka hopena o ke kaomi haʻahaʻa haʻahaʻa a me ka wela nui.I ka manawa like, e kahe hou ka wai hoʻoluʻu i ka condenser, e hana ana i kahi poʻo kiʻekiʻe no ka mea ʻaʻohe mea hoʻokipa i loko o ka ʻōnaehana e paʻa ai ka refrigerant.Me ke poʻo kiʻekiʻe a me ke kaomi haʻahaʻa i loko o ka evaporator, e hoʻonui ʻia ke kahe o ka refrigerant ma muli o ke kiʻekiʻe o ke kaomi ʻana ma waena o ka paipu capillary.I ka manawa like, e emi ana ka hana compressor ma muli o ke kiʻekiʻe o ka compression ratio a me ka haʻahaʻa haʻahaʻa volumetric.E hoʻoikaika kēia i ka ʻōnaehana e hoʻohālikelike, akā ma ke poʻo kiʻekiʻe a me ke kaomi evaporation haʻahaʻa hiki ke alakaʻi i ka hemahema pono ʻole.
Inā ʻoi aku ka liʻiliʻi o ke kūpaʻa capillary ma muli o ka pōkole a i ʻole ka nui o ke anawaena, ʻoi aku ka nui o ke kahe o ka refrigerant ma mua o ka hiki o ka paila compressor.ʻO kēia ka hopena i ke kaomi evaporator kiʻekiʻe, ka wela haʻahaʻa a me ke kahe ʻana o ka compressor ma muli o ka hoʻolako ʻana o ka evaporator.Hiki i ka subcooling ke hāʻule i loko o ka condenser e hoʻohaʻahaʻa i ke poʻo a me ka nalo ʻana o ka sila wai ma lalo o ka condenser.ʻO kēia poʻo haʻahaʻa a ʻoi aku ka kiʻekiʻe ma mua o ke kaomi evaporator maʻamau e hōʻemi i ka lakene hoʻopiʻi o ka compressor e hopena i ka hana volumetric kiʻekiʻe.E hoʻonui kēia i ka mana o ka compressor, hiki ke kaulike inā hiki i ka compressor ke mālama i ke kahe o ka refrigerant kiʻekiʻe i ka evaporator.Hoʻopiha pinepine ka refrigerant i ka compressor, a ʻaʻole hiki i ka compressor ke hoʻokō.
No nā kumu i helu ʻia ma luna, he mea nui ka loaʻa ʻana o nā ʻōnaehana capillary i kahi hoʻoili refrigerant pololei (koʻikoʻi) i kā lākou ʻōnaehana.ʻO ka nui a i ʻole ka liʻiliʻi o ka refrigerant hiki ke alakaʻi i ke kaulike koʻikoʻi a me ka pōʻino koʻikoʻi i ka compressor ma muli o ke kahe wai a i ʻole ke kahe ʻana.No ka nui capillary kūpono, e nīnau i ka mea hana a i ʻole e nānā i ka pakuhi nui o ka mea hana.Na ka papa inoa a i ʻole ka papa inoa o ka ʻōnaehana e haʻi pololei iā ʻoe i ka nui o ka refrigerant e pono ai ka ʻōnaehana, maʻamau i ka hapaʻumi a i ʻole nā ​​haneli o ka auneke.
Ma nā haʻawe wela evaporator kiʻekiʻe, hana maʻamau nā ʻōnaehana capillary me ka wela kiʻekiʻe;ʻoiaʻiʻo, ʻaʻole maʻamau ka wela nui o ka evaporator o 40 ° a i ʻole 50 ° F i nā haʻawe wela evaporator kiʻekiʻe.ʻO kēia no ka mea e hoʻoheheʻe koke ʻia ka refrigerant i loko o ka evaporator a hoʻokiʻekiʻe i ka 100% vapor saturation point i loko o ka evaporator, e hāʻawi ana i ka ʻōnaehana i kahi heluhelu superheat kiʻekiʻe.ʻAʻole loaʻa i nā paipu Capillary kahi manaʻo manaʻo, e like me ke kukui mamao thermostatic expansion valve (TRV), e haʻi i ka mea ana e hana ana ia ma ka wela wela a hoʻoponopono ʻakomi.No laila, ke kiʻekiʻe ka ukana evaporator a kiʻekiʻe ka superheat evaporator, e hana pono ʻole ka ʻōnaehana.
Hiki i kēia ke lilo i kekahi o nā hemahema nui o ka ʻōnaehana capillary.He nui nā ʻenehana e makemake e hoʻohui i ka mea hoʻoheheʻe hou i ka ʻōnaehana ma muli o nā heluhelu wela wela kiʻekiʻe, akā e hoʻonui wale kēia i ka ʻōnaehana.Ma mua o ka hoʻohui ʻana i ka pahu hau, e nānā i nā heluhelu wela maʻamau ma nā haʻahaʻa wela evaporator haʻahaʻa.Ke hoʻemi ʻia ka mahana i loko o ka pahu hau i ka wela i makemake ʻia a aia ka evaporator ma lalo o ka haʻahaʻa wela haʻahaʻa, ʻo ka mea maʻamau evaporator superheat maʻamau maʻamau 5° a 10°F.Ke kānalua ʻoe, e hōʻiliʻili i ka mea hoʻoheheʻe, e hoʻokahe i ka ʻōnaehana a hoʻohui i ke kumukūʻai koʻikoʻi i hōʻike ʻia ma ka papa inoa.
Ke hoʻemi ʻia ka haʻawe wela evaporator kiʻekiʻe a hoʻololi ka ʻōnaehana i ka haʻahaʻa wela evaporator haʻahaʻa, e emi ana ka mahu evaporator 100% saturation point i nā hala hope loa o ka evaporator.ʻO kēia ma muli o ka emi ʻana o ka evaporation rate o ka refrigerant i ka evaporator ma muli o ka haʻahaʻa haʻahaʻa wela.E loaʻa ana i ka ʻōnaehana ka wela wela maʻamau ma kahi o 5° a 10°F.ʻO kēia mau heluhelu wela wela evaporator maʻamau e loaʻa wale ke haʻahaʻa ka haʻahaʻa wela evaporator.
Inā hoʻopiha piha ʻia ka ʻōnaehana capillary, e hōʻiliʻili ʻo ia i ka wai nui i loko o ka condenser, e kumu ke poʻo kiʻekiʻe ma muli o ka nele o kahi mea hoʻokipa i ka ʻōnaehana.E piʻi aʻe ka hāʻule o ke kaomi ma waena o nā ʻaoʻao haʻahaʻa a me ke kiʻekiʻe o ka ʻōnaehana, e hoʻonui ai i ka kahe kahe i ka evaporator a hoʻonui ʻia ka evaporator, e hopena i ka superheat haʻahaʻa.Hiki iā ia ke hoʻokahe a hoʻopaʻa paha i ka compressor, ʻo ia ke kumu ʻē aʻe e pono e hoʻopiʻi ʻia nā ʻōnaehana capillary me ka nui o ka refrigerant.
John Tomczyk is Professor Emeritus of HVACR at Ferris State University in Grand Rapids, Michigan and co-author of Refrigeration and Air Conditioning Technologies published by Cengage Learning. Contact him at tomczykjohn@gmail.com.
ʻO ka maʻiʻo i kākoʻo ʻia he ʻāpana uku kūikawā kahi e hāʻawi ai nā ʻoihana ʻoihana i ka ʻike kiʻekiʻe, kū ʻole, ʻaʻole kūʻai aku i nā kumuhana hoihoi i ka poʻe nūhou o ACHR.Hāʻawi ʻia nā mea i kākoʻo ʻia e nā hui hoʻolaha.Makemake ʻoe e komo i kā mākou ʻāpana maʻiʻo kākoʻo?E hoʻokaʻaʻike i kāu lunamakaʻāinana.
Ma ke Koi Ma kēia webinar, e aʻo mākou e pili ana i nā mea hou loa i ka R-290 refrigerant kūlohelohe a pehea e hopena ai i ka ʻoihana HVACR.
I loko o kēia webinar, kūkākūkā ʻo Dana Fisher lāua ʻo Dustin Ketcham pehea e hiki ai i nā ʻaelike HVAC ke hana hou a hana hou i ka ʻoihana ma ke kōkua ʻana i nā mea kūʻai aku e hoʻohana i nā hōʻaiʻē ʻauhau IRA a me nā mea hoʻoikaika ʻē aʻe e hoʻokomo i nā pamu wela ma nā piʻi āpau.