Ejiri eriri microchannel mee ogologo oge na ụlọ ọrụ ụgbọ ala tupu ha apụta na akụrụngwa HVAC n'etiti afọ 2000.Kemgbe ahụ, ha na-aghọwanye ewu ewu, karịsịa na ikuku ikuku obibi, n'ihi na ha dị arọ, na-enyefe okpomọkụ ka mma, ma na-eji obere refrigerant karịa ndị na-ekpo ọkụ ọkụ tube omenala.
Agbanyeghị, iji obere refrigerant pụtakwara na ekwesịrị ịkpachara anya mgbe ị na-eji igwe microchannel na-ebu sistemu.Nke a bụ n'ihi na ọbụlagodi ounce ole na ole nwere ike imebi arụmọrụ, arụmọrụ na ntụkwasị obi nke sistemu jụrụ oyi.
304 na 316 SS capillary Coil Tubes soplaya na china
Enwere akara ule dị iche iche nke a na-eji maka tubing gbakwụnye maka ndị na-ekpo ọkụ, ndị na-ekpo ọkụ, ndị na-ekpo ọkụ na ngwa ndị ọzọ dị elu nke na-agụnye ikpo ọkụ ma ọ bụ oyi.Ụdị dị iche iche na-agụnyekwa tubing igwe anaghị agba nchara 3/8.Dabere na ọdịdị nke ngwa ahụ, ọdịdị nke mmiri nke a na-ebufe site na tubes na ọkwa ihe, ụdị tubes ndị a dị iche.Enwere akụkụ abụọ dị iche iche maka tubes ndị a na-agbakọta dị ka dayameta nke tube na dayameta nke eriri igwe, ogologo, mgbidi mgbidi na nhazi oge.A na-eji tubes SS Coil Tubes n'ụdị dị iche iche na akara ule dabere na ngwa achọrọ.Enwere ihe alloy dị elu na ihe ndị ọzọ carbon ígwè dị maka tubing eriri igwe.
Ndakọrịta kemịkalụ nke igwe anaghị agba nchara Tube
Ọkwa | C | Mn | Si | P | S | Cr | Mo | Ni | N | Ti | Fe | |
304 | min. | 18.0 | 8.0 | |||||||||
max. | 0.08 | 2.0 | 0.75 | 0,045 | 0,030 | 20.0 | 10.5 | 0.10 | ||||
304L | min. | 18.0 | 8.0 | |||||||||
max. | 0,030 | 2.0 | 0.75 | 0,045 | 0,030 | 20.0 | 12.0 | 0.10 | ||||
304H | min. | 0.04 | 18.0 | 8.0 | ||||||||
max. | 0.010 | 2.0 | 0.75 | 0,045 | 0,030 | 20.0 | 10.5 | |||||
SS 310 | 0.015 kacha | 2 max | 0.015 kacha | 0.020 kacha | 0.015 kacha | 24.00 26.00 | 0.10 kacha | 19.00 21.00 | 54.7 min | |||
SS 310S | 0.08 kacha | 2 max | 1.00 kacha | 0.045 kacha | 0.030 kacha | 24.00 26.00 | 0.75 kacha | 19.00 21.00 | 53.095 min | |||
SS 310H | 0.04 0.10 | 2 max | 1.00 kacha | 0.045 kacha | 0.030 kacha | 24.00 26.00 | 19.00 21.00 | 53.885 min | ||||
316 | min. | 16.0 | 2.03.0 | 10.0 | ||||||||
max. | 0,035 | 2.0 | 0.75 | 0,045 | 0,030 | 18.0 | 14.0 | |||||
316L | min. | 16.0 | 2.03.0 | 10.0 | ||||||||
max. | 0,035 | 2.0 | 0.75 | 0,045 | 0,030 | 18.0 | 14.0 | |||||
316TI | 0.08 kacha | 10.00 14.00 | 2.0 kacha | 0.045 kacha | 0.030 kacha | 16.00 18.00 | 0.75 kacha | 2.00 3.00 | ||||
317 | 0.08 kacha | 2 max | 1 max | 0.045 kacha | 0.030 kacha | 18.00 20.00 | 3.00 4.00 | 57.845 min | ||||
SS 317L | 0.035 kacha | 2.0 kacha | 1.0 kacha | 0.045 kacha | 0.030 kacha | 18.00 20.00 | 3.00 4.00 | 11.00 15.00 | 57.89 min | |||
SS 321 | 0.08 kacha | 2.0 kacha | 1.0 kacha | 0.045 kacha | 0.030 kacha | 17.00 19.00 | 9.00 12.00 | 0.10 kacha | 5(C+N) 0.70 kacha | |||
SS 321H | 0.04 0.10 | 2.0 kacha | 1.0 kacha | 0.045 kacha | 0.030 kacha | 17.00 19.00 | 9.00 12.00 | 0.10 kacha | 4(C+N) 0.70 kacha | |||
347/ 347H | 0.08 kacha | 2.0 kacha | 1.0 kacha | 0.045 kacha | 0.030 kacha | 17.00 20.00 | 9.0013.00 | |||||
410 | min. | 11.5 | ||||||||||
max. | 0.15 | 1.0 | 1.00 | 0,040 | 0,030 | 13.5 | 0.75 | |||||
446 | min. | 23.0 | 0.10 | |||||||||
max. | 0.2 | 1.5 | 0.75 | 0,040 | 0,030 | 30.0 | 0,50 | 0.25 | ||||
904L | min. | 19.0 | 4.00 | 23.00 | 0.10 | |||||||
max. | 0.20 | 2.00 | 1.00 | 0,045 | 0,035 | 23.0 | 5.00 | 28.00 | 0.25 |
Chart Njirimara Mechanical nke igwe anaghị agba nchara tubing Coil
Ọkwa | Njupụta | Ebe Na-agbaze | Ike ọdụdọ | Ike Mpụta (0.2% kwụsịrị) | Ogologo oge |
304/304L | 8.0 g/cm3 | 1400 Celsius (2550 ° F) | Psi 75000, MPa 515 | Psi 30000, MPa 205 | 35% |
304H | 8.0 g/cm3 | 1400 Celsius (2550 ° F) | Psi 75000, MPa 515 | Psi 30000, MPa 205 | 40% |
310 / 310S / 310H | 7.9g/cm3 | 1402 Celsius (2555 ° F) | Psi 75000, MPa 515 | Psi 30000, MPa 205 | 40% |
306/ 316H | 8.0 g/cm3 | 1400 Celsius (2550 ° F) | Psi 75000, MPa 515 | Psi 30000, MPa 205 | 35% |
316L | 8.0 g/cm3 | 1399 Celsius (2550 Celsius) | Psi 75000, MPa 515 | Psi 30000, MPa 205 | 35% |
317 | 7.9g/cm3 | 1400 Celsius (2550 ° F) | Psi 75000, MPa 515 | Psi 30000, MPa 205 | 35% |
321 | 8.0 g/cm3 | 1457 Celsius (2650 Celsius) | Psi 75000, MPa 515 | Psi 30000, MPa 205 | 35% |
347 | 8.0 g/cm3 | 1454 Celsius (2650 Celsius) | Psi 75000, MPa 515 | Psi 30000, MPa 205 | 35% |
904L | 7.95 g/cm3 | 1350 Celsius (2460 Celsius) | Psi 71000, MPa 490 | Psi 32000, MPa 220 | 35% |
SS Okpomọkụ Ọkụkọ ọkpọkọ Tubes Dakọtara akara ule
Ọkọlọtọ | Ọrụ NR. | UNS | JIS | BS | GOST | AFNOR | EN |
SS 304 | 1.4301 | S30400 | Sus 304 | 304S31 | 08X18M10 | Z7CN18-09 | X5CrNi18-10 |
SS 304L | 1.4306 / 1.4307 | S30403 | SUS 304L | 3304S11 | 03H18M11 | Z3CN18-10 | X2CrNi18-9 / X2CrNi19-11 |
SS 304H | 1.4301 | S30409 | - | - | - | - | - |
SS 310 | 1.4841 | S31000 | Sus 310 | 310S24 | 20Ch25N20S2 | - | X15CrNi25-20 |
SS 310S | 1.4845 | S31008 | SUS 310S | 310S16 | 20Ch23N18 | - | X8CrNi25-21 |
SS 310H | - | S31009 | - | - | - | - | - |
SS 316 | 1.4401 / 1.4436 | S31600 | Sus 316 | 316S31 / 316S33 | - | Z7CND17-11-02 | X5CrNiMo17-12-2 / X3CrNiMo17-13-3 |
SS 316L | 1.4404 / 1.4435 | S31603 | Sus 316L | 316S11 / 316S13 | 03Ch17N14M3 / 03Ch17N14M2 | Z3CND17-11-02 / Z3CND18-14-03 | X2CrNiMo17-12-2 / X2CrNiMo18-14-3 |
SS 316H | 1.4401 | S31609 | - | - | - | - | - |
SS 316Ti | 1.4571 | S31635 | SUS 316Ti | 320S31 | 08Ch17N13M2T | Z6CNDT17-123 | X6CrNiMoTi17-12-2 |
SS 317 | 1.4449 | S31700 | Sus 317 | - | - | - | - |
SS 317L | 1.4438 | S31703 | SUS 317L | - | - | - | X2CrNiMo18-15-4 |
SS 321 | 1.4541 | S32100 | Sus 321 | - | - | - | X6CrNiTi18-10 |
SS 321H | 1,4878 | S32109 | SUS 321H | - | - | - | X12CrNiTi18-9 |
SS 347 | 1.4550 | S34700 | Sus 347 | - | 08Ch18N12B | - | X6CrNiNb18-10 |
SS 347H | 1.4961 | S34709 | SUS 347H | - | - | - | X6CrNiNb18-12 |
SS 904L | 1,4539 | N08904 | SUS 904L | 904S13 | STS 317J5L | Z2 NCDU 25-20 | X1NiCrMoCu25-20-5 |
Nhazi eriri eriri ọkpọ ọdịnala bụ ọkọlọtọ ejirila na ụlọ ọrụ HVAC ruo ọtụtụ afọ.Igwe mkpuchi ndị ahụ na-eji tubes ọla kọpa gburugburu nwere ntù aluminom, mana ọkpọkọ ọla kọpa kpatara electrolytic na corrosion anthill, na-eduga n'ịba ụba eriri igwe, Mark Lampe, onye njikwa ngwaahịa maka mkpuchi ọkụ na Carrier HVAC na-ekwu.Iji dozie nsogbu a, ụlọ ọrụ ahụ atụgharịala tubes aluminom gburugburu na nku aluminom iji meziwanye arụmọrụ usoro ma belata corrosion.Ugbu a enwere teknụzụ microchannel nke enwere ike iji ma ihe na-ekupụ ọkụ na condensers.
Lampe kwuru, "Teknụzụ microchannel, nke a na-akpọ teknụzụ VERTEX na Carrier, dị iche na tubes aluminom gburugburu na-eji tubes yiri ya dị larịị dochie ya na ntù aluminom," Lampe kwuru."Nke a na-ekesa refrigerant karịa nke ọma n'akụkụ ebe sara mbara, na-eme ka nnyefe ọkụ na-eme ka ikuku ahụ nwee ike ịrụ ọrụ nke ọma.Ọ bụ ezie na ejiri teknụzụ microchannel mee ihe na condensers n'èzí, a na-eji teknụzụ VERTEX ugbu a naanị n'oku ụlọ obibi.
Dị ka Jeff Preston, onye isi ọrụ nka na Johnson Controls si kwuo, imewe microchannel na-emepụta otu ọwa dị mfe "n'ime na pụta" refrigerant eruba nke nwere tube na-ekpo ọkụ n'elu yana tube na-ekpo ọkụ na ala.N'ụzọ dị iche, ihe refrigerant dị na eriri eriri tube a na-ahụkarị na-agafe n'ọtụtụ ọwa site n'elu ruo na ala n'ụdị agwọ, na-achọ ebe elu.
Preston kwuru, "Nhazi eriri igwe microchannel pụrụ iche na-enye ọnụọgụ nnyefe ọkụ dị mma, nke na-abawanye arụmọrụ ma na-ebelata ego nke refrigerant chọrọ," Preston kwuru."N'ihi ya, ngwaọrụ ndị ejiri eriri microchannel emebere na-adịkarị obere karịa ngwaọrụ arụ ọrụ dị elu nwere atụmatụ tube ọdịnala mara mma.Nke a dị mma maka ngwa nwere oghere dị ka ụlọ nwere ahịrị efu. "
N'ezie, ekele maka iwebata teknụzụ microchannel, ka Lampe na-ekwu, Carrier enweela ike idobe ọtụtụ ihe mkpuchi ọkụ ime ụlọ na ikuku ntụ oyi n'èzí otu nha site n'iji eriri gburugburu na nhazi tube rụọ ọrụ.
Ọ sịrị, "Ọ bụrụ na anyị etinyeghị teknụzụ a, anyị gaara abawanye nha nke mkpuchi ọkụ dị n'ime ruo sentimita iri na otu n'ịdị elu ma ga-eji chassis buru ibu maka condenser mpụga," ka o kwuru.
Ọ bụ ezie na a na-ejikarị teknụzụ microchannel coil eme ihe na refrigeration ụlọ, echiche a na-amalite ịmalite na nrụnye azụmahịa ka ọchịchọ maka ọkụ ọkụ, ngwa ngwa kọmpat na-aga n'ihu na-eto eto, Preston kwuru.
N'ihi na eriri igwe microchannel nwere obere refrigerant, ọbụlagodi ounce ole na ole nke mgbanwe mgbanwe nwere ike imetụta ndụ sistemu, arụmọrụ yana ike, Preston kwuru.Nke a bụ ya mere ndị ọrụ ngo ga-eji na-enyocha onye nrụpụta mgbe niile gbasara usoro nchaji, mana ọ na-agụnye usoro ndị a:
Dị ka Lampe si kwuo, nkà na ụzụ Carrier VERTEX na-akwado otu nhazi, ụgwọ na mmalite usoro dị ka nkà na ụzụ tube gburugburu ma ọ dịghị achọ usoro ndị na-agbakwunye ma ọ bụ dị iche na usoro chaja oyi akwadoro ugbu a.
Lampe kwuru, "Ihe dị ka pasent 80 ruo 85 nke ụgwọ ahụ dị na ọnọdụ mmiri mmiri, yabụ na ọnọdụ jụrụ oyi, olu ahụ dị na mkpọ condenser n'èzí na ngwugwu ahịrị," Lampe kwuru."Mgbe ị na-akwaga na igwe microchannel nwere olu dị n'ime ya belatara (ma e jiri ya tụnyere atụmatụ fin tubular gburugburu), ọdịiche dị na ụgwọ na-emetụta naanị 15-20% nke mkpokọta ụgwọ, nke pụtara obere mpaghara dị iche iche siri ike.Ọ bụ ya mere a na-atụ aro ka a ga-esi kwụọ ụgwọ sistemụ ahụ bụ site n'ịjụ oyi, nke akọwapụtara na ntuziaka nrụnye anyị.
Otú ọ dị, obere refrigerant dị na microchannel coils nwere ike ịghọ nsogbu mgbe ikpo ọkụ na-ekpo ọkụ n'èzí na-agbanye na ọnọdụ kpo oku, Lampe kwuru.N'ime ọnọdụ a, a na-agbanye eriri sistemu na capacitor nke na-echekwa ọtụtụ ụgwọ mmiri bụ ugbu a eriri dị n'ime.
Lampe kwuru, "Mgbe olu dị n'ime nke eriri ime ụlọ dị obere karịa nke ikuku dị n'èzí, enweghị ahaghị nhata nwere ike ime na sistemụ," Lampe kwuru."Iji dozie ụfọdụ n'ime nsogbu ndị a, Carrier na-eji batrị arụnyere n'ime ụlọ dị n'èzí iji kpochapu ma chekwaa ego buru ibu na ọnọdụ kpo oku.Nke a na-enye ohere ka usoro ahụ nọgide na-enwe nrụgide kwesịrị ekwesị ma na-egbochi compressor site na idei mmiri, nke nwere ike iduga arụ ọrụ adịghị mma dịka mmanụ nwere ike ịmalite n'ime eriri ime.
Mgbe ị na-ebufe sistemu na eriri microchannel nwere ike ịchọ nlebara anya pụrụ iche na nkọwapụta, ịchaji sistemu HVAC ọ bụla chọrọ iji ezigbo refrigerant, Lampe kwuru.
O kwuru, "Ọ bụrụ na sistemụ ahụ karịrị akarị, ọ nwere ike ibute nnukwu ike oriri, nju oyi na-adịghị mma, ntanye na ọdịda compressor na-akabeghị aka," ka o kwuru."N'otu aka ahụ, ọ bụrụ na sistemụ anaghị akwụ ụgwọ, ikuku ikuku, mgbaba valvụ mgbasawanye, nsogbu ịmalite compressor na nkwụsị ụgha nwere ike ime.Nsogbu na igwe microchannel abụghị ihe ọzọ. "
Dabere na Jeff Preston, onye isi ọrụ nka na Johnson Controls, ịrụzi eriri igwe microchannel nwere ike bụrụ ihe ịma aka n'ihi nhazi ha pụrụ iche.
“Ịrịda elu elu chọrọ ọkụ alloy na MAPP gas nke a na-ejikarị eme ihe n'ụdị akụrụngwa ndị ọzọ.Ya mere, ọtụtụ ndị ọrụ ngo ga-ahọrọ iji dochie eriri igwe kama ịnwale nrụzi. "
A bịa n'ihe gbasara ihicha eriri igwe microchannel, ọ na-adị mfe n'ezie, ka Mark Lampe, onye njikwa ngwaahịa maka mkpuchi ọkụ na Carrier HVAC na-ekwu, n'ihi na ntù aluminom nke eriri igwe finned na-ehulata ngwa ngwa.Ọtụtụ nku gbagọrọ agbagọ ga-ebelata ikuku nke na-agafe na eriri igwe, na-ebelata arụmọrụ.
"Teknụzụ ụgbọelu VERTEX bụ ihe siri ike karị n'ihi na nku aluminom na-anọdụ ala n'okpuru tubes refrigerant aluminom dị larịị ma na-amanye ya na tubes, nke pụtara ịhịa aka adịghị agbanwe ntù ahụ nke ukwuu," Lampe kwuru.
Nhicha dị mfe: Mgbe ị na-ehicha eriri igwe microchannel, jiri naanị ihe nhicha dị nro, nke na-abụghị acidic ma ọ bụ, n'ọtụtụ oge, naanị mmiri.(onye na-ebu ibu nyere ya)
Mgbe ị na-ehicha eriri igwe microchannel, Preston na-ekwu na zere kemịkalụ siri ike na ịsacha nrụgide, kama jiri naanị ndị na-ehicha eriri igwe na-abụghị acidic ma ọ bụ, n'ọtụtụ ọnọdụ, naanị mmiri.
"Otú ọ dị, obere refrigerant chọrọ ụfọdụ mgbanwe na usoro mmezi," ka o kwuru.“Dịka ọmụmaatụ, n'ihi obere nha, enweghị ike ịwụpụ refrigerant mgbe akụkụ ndị ọzọ nke sistemụ chọrọ ọrụ.Na mgbakwunye, a ga-ejikọta akụkụ akụrụngwa naanị mgbe ọ dị mkpa iji belata mmebi nke olu refrigerant.
Preston gbakwụnyere na njikwa Johnson na-etinye ọnọdụ dị oke egwu na ala Florida ya, nke kpalitere mmepe nke microchannels.
"Nsonaazụ nke ule ndị a na-enye anyị ohere imeziwanye mmepe ngwaahịa anyị site n'ịkwalite ọtụtụ alloys, ọkpọkọ ọkpọkọ na chemistries dị mma na usoro brazing ikuku a na-achịkwa iji gbochie corrosion coil ma hụ na a na-enweta ọkwa kachasị mma nke arụmọrụ na ntụkwasị obi," ka o kwuru."Nkwenye usoro ndị a agaghị eme ka afọ ojuju nke onye nwe ụlọ, kamakwa ọ ga-enye aka belata mkpa nlekọta."
Joanna Turpin is a senior editor. She can be contacted at 248-786-1707 or email joannaturpin@achrnews.com. Joanna has been with BNP Media since 1991, initially heading the company’s technical books department. She holds a bachelor’s degree in English from the University of Washington and a master’s degree in technical communications from Eastern Michigan University.
Ọdịnaya akwadoro bụ ngalaba a na-akwụ ụgwọ pụrụ iche ebe ụlọ ọrụ ụlọ ọrụ na-enye ọdịnaya dị elu, enweghị mmasị na nke na-abụghị nke azụmahịa na isiokwu masịrị ndị na-ege akụkọ ACHR.Ụlọ ọrụ mgbasa ozi na-enye ọdịnaya niile akwadoro.Ị nwere mmasị isonye na ngalaba ọdịnaya anyị akwadoro?Kpọtụrụ onye nnọchi anya mpaghara gị.
N'ọchịchọ Na webinar a, anyị ga-amụta maka mmelite kachasị ọhụrụ na refrigerant eke R-290 yana otu ọ ga-esi metụta ụlọ ọrụ HVACR.
Oge nzipu: Eprel-24-2023