Seleksen bilong ol i pasim (0}}}Sirket Kuling Taua

Komon "3" Ol rong bilong ol i Klostu-}Siket bilong wokim ol samting

Pitfall 1: Nogut seleksen bilong koil samting, na dispela i mekim na ros i go insait na wara i lik bilong klos i klostu-'circut koling taua koil;

Pitfall 2: Sapos yu no putim antifriz long medium, na dispela i kamapim ais bilong medium bihain long ol i pasim ol ikwipmen long taim bilong kol, na dispela i brukim koil;

Pitfall 3: Miskalkulesen bilong sprei wara volium, na dispela i kamapim bikpela inkris long pawa konsumsen kos.

Ol besik Prinsipol blong ol Kloseta-}Sirket blong mekem ol samting blong mekem

Ol klos{0}}}koit kol taua i save kisim kol long rot bilong indairek hat eksens. Medium we i stap raon (olsem wota o etilen glycol solusen) i ron long wan koil we i klos, mo oli tekem hat tru long sprei wota evaporesen mo konveksen blong ea. Besik as tingting bilong ol klos bilong pasim -'circing taua i stap long tripela bikpela samting: senis bilong hat, wara bilong wara i kamap isi, na ron bilong win.

Proses bilong senisim hat

1.1 Hat Transfe Medium

Long ol klos bilong kolim ol taua i pas pinis-'cicut calling, ol i save yusim wara olsem 'heat transfed medium'. Hat long ol ikwipmen o sistem ol i mas mekim i kol (olsem ol indastriel ikwipmen, ol kondensa bilong ol ea kondisen sistem, na ol narapela) i save go pastaim long wara i raun.

Wota we i ron i ron long wan sistem we i klos we i no gat wan stret kontak wetem envaeromen aotsaed, mekem se i mekem sua se kwaliti blong wota i stap strong mo i blokem ol doti blong go insaed long sistem.

1.2 Rol bilong Hat Eksensa

Bikpela wok bilong hat eksenja em long givim gutpela hat long ol ikwipmen i go long wara i raun.

Taem wota we i stap raon i stap karem hat long ol ikwipmen i go insaed long hit eksenja, hit i transfea long hae tempereja saed (saed blong wota we i raon) i go long saed blong tempereja we i daon (saed blong wota we i kolkol). Long ol taua bilong kol i stap klostu{1}}'esarket, wara bilong kol i save kamap long win, tasol i no olsem ol taua bilong mekim kol i kol, win i no save toktok stret wantaim wara i raun.

Proses bilong Evaporesen bilong wara

2.1 Koil na Sprei Sistem

Ol i save wokim koil bilong kol insait long wanpela taua i gat kolta i pas wantaim bilong en, em i save wokim long ain, na ol i save putim long wanpela kain rop o ol narapela kain, na ol i putim insait long taua bilong kol. Wota i ron long koil, i jenisim hot wetem ea aotsaed long koil.

Dispela taua bilong mekim kol i gat wanpela masin bilong spreim, em i save spreim liklik hap wara i raun i go insait long ol liklik wara i pundaun. Ol dispela drop i kamap olsem wanpela wara piksa antap long koil. Taem ea i pas tru long koil anda long aksen blong fan blong taoa, ol droplet oli kam long kontak wetem ea.

2.2 Prinsipol blong Evaporetiv Hat Dissipesen

Taem ol droplet we oli spree oli kam insaed long ea, wota i evaporate, mo proses blong evaporesen i pulumaot wan bigfala amaon blong hot, we i kam long hot blong wota we i stap raon long koil.

Taim wara i kamap evaporesen, temperaja bilong wara i raun insait long koil i go daun isi isi. Wota we i kolkol i stap raon long sistem we i klos, i gobak long ol tul blong mekem i kam kolkol, i tekem hot long ol ikwipmen bakegen, mo saekol ia i gohed blong kasem kolkol we i stap gohed oltaem.

Ea Flo Proses

3.1 Rol bilong Fan

Dispela fan i save promotim moa yet ron bilong win long kol taua. Ol i save putim dispela fan long antap o sait bilong kol taua, na dispela i save kamapim hevi long rot bilong rotesen bilong pulim win bilong ausait i go insait long taua.

Afta we hem i go insaed long kolkol taoa, ea i pas tru long koil blong kolkol mo ples blong sprei. Rotesen spit na ea volium bilong fan i ken stretim bihainim ol nid tru bilong kontrolim hat eksens reit namel long win na wara.

3.2 Hat Eksens Daereksen namel long Ea na Wara

Long taua bilong kol, win na wara i save mekim wok bilong senisim hat i go daun. Ea i ron long botom i go antap, mo wota i ron long top i go daon (insaed long koil). Dispela kauntakren mod inap mekim tempereja i narapela narapela namel long win na wara i stap gut, na long dispela rot i mekim hat eksens efisiensi i kamap gutpela moa.

Struktural Komposisen bilong Klosw-}Sirkit Kuling Taua

Koil: Ol i wokim bilong korosen-}rap samting (olsem 304 steinles stiel o kopa tiub), wantaim medium bilong kol i ron i go insait;

Spreim sistem: Spreim gut wara bilong kol i go antap long koil pes;

Fan: Ol fos i save ron long win (ol fan o sentrifugal fan);

Wota tenk: Ol kolekt na sirkulasen bilong sprei wara;

Filler: I mekem se ples blong kontak i kam antap bitwin wota mo ea;

Medium bilong ol Klostu-Siket Kuling Taua na Fisik Propati Paramita bilong en

Medium bilong ol klos bilong kol i pas-kot i save mekim ol man i kol: Midium ol i yusim long ol taua bilong kolim klos i pas wantaim -'isait em i save wara na etilen glycol. Ol i save yusim wara olsem medium long saut, na ol i save yusim ethylene glycol midium long not.

Ol samting bilong bodi bilong wara

Paramita	Value (20 digri)	Value (40 digri)	Enjiniaring Signifikens
Densiti (ρ)	998 kg/m3.	992 kg/m3.	I afekt long pam pawa na flow ret kalkulesen
Spesifik hat kapasiti (Cp)	4.18 kJ/(kg· digri)	4.18 kJ/(kg· digri)	Kor paramita bilong kalkulesen bilong hat lod
Temal konduktiviti (λ)	0.598 W/(m· digri)	0.630 W/(m· digri)	I save bagarapim wok bilong trensfe bilong koil.
Dynamic viskositi (μ)	1.002×10 3 Pa·s	0.653×10 3 Pa·s	I makim olsem ron bilong wara na presa i go daun.
Frising poin	0 digri	-	Ki bilong winta antifris disain
Boiling poin	100 digri	-	-

Toksave: Ol samting bilong bodi bilong wara i senis tru wantaim tempereja. Olsem, viskositi em 1.787×10 3 Pa·s long 0 digri na 0.467×10 3 Pa·s long 60 digri ; thermal konduktiviti i go daun long 0.68 W/(m· digri ) long 100 digri .

Ol samting bilong bodi bilong ethylene glycol solusen (20 digri )

Paramita	Velu	Senis skelim wantaim klinpela wara	Disain impak
Densiti (ρ)	1070 kg/m3	+7%	Pam pawa i mas go antap long samting olsem 8%
Spesifik hat kapasiti (Cp)	3.45 kJ/(kg· digri)	-17%	Bikpela flow reit i mas kamap long wankain hat lod
Temal konduktiviti (λ)	0.39 W/(m' digri)	-35%	I daunim wok bilong senisim hat.
Dynamic viskositi (μ)	3.5×10 3 Pa·s	+450%	Bikpela samting i go antap long ron bilong wara

Rilesensip namel long tipikel ethylene glycol konsentresen na frising poin

Ethylene glycol konsentresen	Frising poin ( digri)	Boiling poin ( digri)	Ol aplikesen senario
30%	-15	106	Ol jenerol antifriz rikwaemen
50%	-37	110	Bikpela kol eria o liklik mak bilong wok kondisen
60%	-55	113	Ol ples we i daon tumas- temperaja

Toksave: Taim ethylene glycol konsentresen i antap, mak bilong ais i go daun, tasol viskositi i go antap tru (i nidim wanpela hai-het pam); ethylene glycol solusen i gat liklik korosivnes long ol metal, olsem na ol korosen inhibita (olsem boret) i mas go insait o steinles stiel o kopa-ritel aloi koil i mas yusim; ol frising poin rikwaemen i save makim ethylene glycol konsentresen, tasol bikpela konsentresen bai mekim pam pawa konsumsen i go antap tru; i gud blong mekem se konsentresen ia i kam gud moa tru long viskositi-} temperature kev; hat trensfe koefisen bilong ethylene glycol solusen em 30%-40% daunbilo long dispela bilong klinpela wara, olsem na koil eria o ea volium i mas go antap.

Ol Kain Kain, Ol samting, ol Gutpela na ol hevi bilong ol Klos i Klostu-}Siket Kuling Taua Koil

(1) Ol Kopa Tube (Red Kopa Tubes)

Ol gutpela samting:

Gutpela thermal konduktiviti: Ol retpela kopa tiub i gat bikpela thermal konduktiviti (380 W/m·k), wantaim bikpela hat eksens efisiens, i gutpela long ol namel na hai tempereja difrens senario.

Strongpela korosen resistens: Naturally resisten long korosen long wara, wik asid/alkali midia, wantaim longpela sevis laip (planti taim moa long 20 yia).

Stebol mekanik samting: Thin-i wol (8-10mm) tasol bikpela strong, wantaim bikpela weldim teknoloji (ol i save weldim ol welding rod) na gutpela siling pefomens.

Ol samting nogut:

Bikpela kos: Kopa i dia tumas, wantaim namba wan invesmen olsem 1.5 taim bilong ol steinles stiel tiub.

I hevi tumas: Hevi moa long ol steinles stiel tiub bilong wankain volium, na i nidim moa sapot straksa bilong instolesen.

(2) Ol Stinles Stel Tube (304/316L)

Ol gutpela samting:

Gutpela korosen resistens: Moa yet 316L steinles stiel inap sanap strong long ol hatpela envairomen olsem strongpela asit na sol sprei, wantaim sevis laip bilong 15-20 yia.

Hae presa-… blong karem strong: I save stanap strong long hae-}presa wok kondisen mo i no isi blong defomem.

Ol samting nogut:

Low thermal konduktiviti: Temal konduktiviti (16 W/m·k) i nidim inkris long koil eria o ea volium long kompenset long wok gut.

Prosesing bilong hat: Weldim i nidim argon ark weldim teknoloji, wantaim ol bikpela teknikel rikwaemen, na em i save kisim stres korosen kreking.

(3) Ol Tial Bilong Sil bilong Kabon (Galvan)

Ol gutpela samting:

Low kos: Praes blong hem i 1/3 kasem 1/2 blong ol kopa tiub nomo, we i stret long ol projek we i gat smol bajet.

I isi blong prosesem: I isi blong weldem mo katem, i stret blong installem kwiktaem.

Ol samting nogut:

Nogut korosen resistens: Galvanizing i nidim long skruim sevis laip, tasol korosen i stap yet long kamap long longpela taim (sevis laip i olsem 5-8 yia).

Hae skeling reit: Raf pes i save kasem skel, i nidim blong klinim oltaem, we i daonem wok blong jenisim hat.

(4) Titanium Aloi Tubes

Ol gutpela samting: Strongpela strong bilong korosen (mobeta long ol klorait aion), lait, i gutpela long kol bilong solwara na nuklia indastri.

Ol samting i no gutpela: Bikpela kos tru (olsem 5-pela taim bilong steinles stiel) na hatpela prosesing.

(5) Ol Aluminium Aloi Tubes

Ol gutpela samting: Ol samting i no hevi tumas na i gutpela tru bilong karim hat (olsem 200 W/m·).

Ol samting nogut: Daunbilo mekanik strong na i save kisim korosen long ol alkaline midia.