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Fin Types dzeAluminium Plate Fin Heat Exchangers
2024-10-17 10:21:58
1: Tsanangudzo yeAluminium Fins
Zvipedzi ndizvo zvinonyanya kukosha zveplate-fin heat exchangers. Iyo nzira yekupisa yekupisa inonyanya kupedzwa nezvimbi, uye chikamu chete chinopedzwa zvakananga nekuparadzanisa.
Kubatana pakati pezvimbi uye kupatsanurwa kwakanyatso kubhuroka, saka kwakawanda kwekupisa kunoendeswa kune inotonhora inotakura kuburikidza nemafins uye kupatsanurwa.
Sezvo kupisa kwekushisa kwemafins hakusi kwakananga kupisa kupisa, mafins anonziwo "secondary surfaces".
Iyo zvimbi zvakare inoita basa rekusimbisa pakati pezvikamu zviviri. Kunyangwe zvimbi nemapartitions zvakatetepa kwazvo, zvine simba rakawanda uye zvinokwanisa kushingirira kudzvanya. Zvimbi zvakadhindwa kubva kutetepa kwazvo 3003 aruminiyamu foil, uye ukobvu kazhinji kubva 0.15mm kusvika 0.3mm.
2: Mhando dzezvimbi
Kazhinji kutaura, kune marudzi akawanda emafins:
● Mugumo wakajeka
● Offset fin
● Chipi chine buri
● Wavy fin
● Fine louvered
2.1: Magumo akajeka
Kuenzaniswa nemamwe maumbirwo ezvimbi, iyo yakatwasuka fin ine hunhu hwehudiki hwekupisa kupisa coefficient uye kuyerera kuramba.
Rudzi urwu rwefin runowanzo shandiswa mumamiriro ezvinhu apo kuyerera kwechinodiwa kuri kudiki uye yayo yekupisa kupisa coefficient yakakura (senge yemvura divi uye chikamu shanduko).
2.2: Offset fin
Zvimbi zveSawtooth zvinogona kutorwa sezvimbi zvisingaperi zvinogadzirwa nekucheka zvimbi zvakati twasa kuita zvidimbu zvipfupi zvakawanda uye kudzikamisa pane imwe nguva.
Rudzi urwu rwefin runoshanda zvakanyanya mukusimudzira mhirizhonga yemvura uye kuparadza kupisa kwekupisa kwemiganhu. Iyo yakakwira-inoshanda fin, asi kuyerera kupikisa kunowedzerawo zvinoenderana.
Sawtooth fins inonyanya kushandiswa mumamiriro ezvinhu apo kuchinjana kwekupisa kunoda kuvandudzwa (kunyanya padivi pegasi nedivi remafuta).
2.3: Perforated fin
Iyo porous fin inoumbwa nekubaya maburi mufoiri yealuminium uye nekuitsika.
Iwo maburi madiki akagovaniswa pazvimbi anoramba achityora thermal resistance boundary layer, nekudaro achinatsiridza mashandiro ekutamisa kupisa. Iwo akawanda-maburi anobatsira pakugovera yunifomu yemvura, asi panguva imwe chete, ivo vanoderedzawo nzvimbo yekupisa yekupisa yezvimbi uye kuderedza simba refin.
Iyo porous fins inonyanya kushandiswa mumagidhi vanes kana chikamu chekuchinja maapplication. Nekuda kweiyo yepakati kupisa kweyekupisa coefficient uye kuyerera kuramba, ivo vanowanzoshandiswa mune intercoolers.
2.4: Wavy fin
Corrugated fins inogadzirwa nekubaya aluminium foil mune imwe waveform kuti igadzire curved kuyerera chiteshi.
Nekugara uchichinja mafambiro ekuyerera kwemvura, mhirizhonga, kupatsanurwa uye kuparadzwa kweiyo kupisa kwekudzivirira muganhu wemvura inosimudzirwa, uye mhedzisiro yacho yakaenzana nekuputsika kwefin.
Iyo denser iyo corrugation uye yakakura iyo amplitude, iyo yakawanda inogona kuwedzera kupisa kutamisa.
Kubva padhata redu rekuyedza, kupisa kwekutamisa mafins ane corrugated fins yakaenzana neiyo serrated fins. Mukuwedzera, zvipembenene zvekoroti zvine humwe hunhu hunokosha: hazvidzivirirwe nyore nemarara, uye kunyange kana dzakavharwa, marara ari nyore kubvisa.
2.5: Yakanaka Louvered
Iyo shutter blade ifini inochekwa pane imwe chinhambwe munzira yekuyerera kwemvura kuti iite shutter shape.
Iyo zvakare inoregedza fin, uye yayo kupisa kupisa kuita kwakafanana neiyo yemaserted blades uye marata. Kukanganisa kwayo ndeyekuti chikamu chakachekwa chinovharwa nyore netsvina.
Zvinotsanangurwa zvinopihwa nedhipatimendi reAtlas Oilfree zvinowanzotaura kuti rudzi urwu rwefin harufanire kushandiswa. Asi rudzi urwu rwefin rune pundutso. Inogona kukungurutswa kunze nekumhanya kwazvo pamushini wekutenderedza fin, ine yakanyanya kugadzirisa.
Iyo inowanzo shandiswa mune yakawanda-yakagadzirwa kupisa kupisa muindasitiri yemotokari.
3: Tinogona kugadzirisa marudzi akasiyana ezvimbi kwauri zvinoenderana nezvaunoda, kusanganisira saizi yepakati!