Nsuo a Wɔde Di Dwuma wɔ Closed-Loop Cooling Systems mu
Jun 30, 2026
Gyae nkrasɛm bi .
Closed-loop cooling system no yɛ nsuo a ɛde ne ho mmienu: sealed emu adeyɛ circulation circuit ne abɔnten spray circulation circuit. Nsu a wɔde di dwuma ne nea wɔhwere wɔ amansin abien no mu no mu atew koraa.
Nsuo a wɔhwehwɛ nyinaa fa afã mmienu: static system a ɛkura nsuo dodoɔ ne makeup nsuo a wɔde yɛ adwuma da biara da. Sɛ wɔde toto atetesɛm abantenten a wɔde yɛ onwini a wɔabue mu ho a, ɛde nsuo-akoraeɛ adwumayɛ a ɛda nsow ma na ɛyɛ onwini ano aduru titire ma ahoɔden foforɔ, nnuruyɛ adwuma, nneɛma a wɔyɛ no pɛpɛɛpɛ ne data mmeaeɛ.
I. Total Static Holding Nsuo Volume (Bere Baako-Bere Filling Volume) .
Nsuo dodoɔ a ɛntene no kyerɛ nsuo a ɛsɛ sɛ wɔhyɛ no nyinaa ma wɔ berɛ a wɔrehyɛ aseɛ mfitiaseɛ anaasɛ wɔreyi nsuo no nyinaa wɔ nsiesie kɛseɛ akyi, a ɛyɛ nsuo a wɔde yɛ adwuma wɔ mu ne nsuo a wɔde petepete abɔnten.
Sealed Internal Process Nsuo a Ɛkyinkyin
Wɔato saa amansin yi mu koraa wɔ coils, pipelines, heat exchangers ne buffer water tanks mu a mframa nni mu, na ɛde abɔdeɛ mu nsuo a ɛyera ketewaa bi ba berɛ a wɔreyɛ adwuma. Nkontaabu Nsusuwii:Process Water Volume=Pipeline Volume + Coil Volume + Buffer Tank Volume Wɔ mfiridwuma mu adwumayɛ tebea a ɛyɛ gyinapɛn mu no, static holding volume no du bɛyɛ 8–12 m3 wɔ 100 m3/h biara mu wɔ process circulation flow mu. Nnua nketewa a ɛsen nnu 50 m3/h no kura nsuo 3–6 m3.
Nneɛma akɛse a wɔatoto mu-loop nhyehyɛe a wɔde sie ahoɔden ne nnuruyɛ a ɛsen boro 1,000 m3/h hwehwɛ sɛ wɔde cubic mita ɔhaha pii bɛhyɛ mu ma bere biako-. Wɔtaa fa nsu a ayɛ mmerɛw, nsu a ɛho tew anaa ethylene glycol nsuo a wɔde afra mu sɛ ade a ɛkyinkyini. Medium nketenkete nko ara na ɛhia sɛ wɔde ka ho ma nsuo a ɛretu wɔ bere a wɔde ahyɛ mu ma mfitiaseɛ akyi, na ɛho nhia sɛ wɔde medium kɛseɛ-sesa afe mũ no nyinaa.
Abɔnten Spray Nsuo a Ɛkyinkyini
Nsu a wɔde petepete so no sen fa nhama a wɔatoto mu no akyi ma ɛyɛ hyew a ɛma ɛyɛ hyew na wɔde sie wɔ abantenten a ɛma onwini no ase nsukorabea no mu. Ne static volume no yɛ 20%–50% pɛ wɔ process circulation flow no mu. Fa 500 m3/h closed-loop process cooling system sɛ nhwɛsoɔ: spray circulation flow no firi 100 kɔsi 250 m3/h, berɛ a static holding water a ɛwɔ sump no mu no yɛ 5–15 m3 pɛ, a ɛnnuru koraa sene cubic mita ɔhaha pii a wɔde asie wɔ nsuo a ɛwɔ open cooling towers a ɛwɔ specification korɔ no ara mu.
Bere biako{0}}ahyɛnsode dodow a ɛwɔ closed-loop nhyehyɛe a edi mũ mu nyinaa yɛ 30%–50% pɛ wɔ nhyehyɛe a wɔabue a ɛwɔ ɔhyew a ɛtwetwe ahoɔden a ɛyɛ pɛ no mu, na ɛtew nsu a wɔde di dwuma mfiase no so kɛse.
II. Nsu a Wɔde Yɛ Nneɛma a Wɔde Yɛ Adwuma wɔ Daa Dwumadi Mu (Core Source of Continuous Water Loss) .
Nsuo a ɛyera da biara wɔ closed-loop systems mu no ba wɔ abɔnten spray circuit no mu nko ara, berɛ a wɔbɛtumi abu ani agu emu circulation a ɛyera no so. Nsuo a wɔde yɛ makeup nyinaa yɛ evaporation a ɛyera, drift a ɛyera ne blowdown a ɛyera.General Formula: Dɔnhwerew biara Makeup Nsuo Volume=Evaporation Loss + Drift Loss + Blowdown Loss
Evaporation Loss (70%–80% wɔ nea ɛyera nyinaa mu, nsu a wɔde di dwuma titiriw) .
Wɔnam nsu a wɔde petepete so a wɔma ɛyɛ hyew so yi ɔhyew fi hɔ, na nsonsonoe a ɛwɔ ɔhyew mu no na ɛkyerɛ tumi a ɛyɛ hyew tẽẽ. Industrial empirical standard: bere a ɔhyew nsonsonoe a ɛda nsu a wɔde petepete mu ne nea efi mu ntam no yɛ 5℃, evaporation loss yɛ pɛ 0.54% wɔ spray circulation flow nyinaa mu.Nkontaabuo a Ɛyɛ Pɛpɛɛpɛ: WE=Δt×L×4.1868÷2520 Faako a Δt=ɔhyew nsonsonoeɛ a ɛwɔ nsuo a wɔde petepete mu;
L=dɔnhwerew biara a wɔde petepete nsu a ɛsen. Sɛ nhwɛso no, sɛ nsu a wɔde petepete so no sen 200 m3/h na nsonsonoe yɛ digrii 5 a, dɔnhwerew biara mu nsu a ɛyɛ hyew a ɛyera no du bɛyɛ 1.08 m3.
Wɔ awɔw bere a ɛyɛ hyew mu a wet-bulb hyew kɔ soro no, evaporation loss kɔ soro kakra kodu 0.6%–0.8% wɔ spray flow no mu.
Drift Loss a Wɔhwere
Nsuo a wɔyi fi hɔ a ɛyɛ adwuma yie{0}}siw nsuo a ɛyɛ nsuo a ɛyɛ nwini no kwan, na ɛde drift loss a ɛba fam koraa ba ma closed-loop systems, 0.001%–0.1% pɛ wɔ nsuo a wɔde petepete nsuo mu. Mfiri a ɛyɛ fɛ tumi di drift loss a ɛba fam 0.05% so, ɛkame ayɛ sɛ ɛmma nsuo adesoa biara nni hɔ, a ɛkorɔn koraa sene abantenten a wɔabue a drift loss 2%–3% wom.
Blowdown Dilution Nneɛma a Wɔhwere
Nkyene boaboa ano wɔ nsuo a wɔde petepete nsuo mu wɔ berɛ tenten-ayɛ a ɛyɛ hyew akyi, enti ɛhia sɛ wɔbɔ no daa na ama wɔatumi ahyɛ nsunsuansoɔ kyinhyia so, a nhyɛsoɔ kyinhyia a wɔahyɛ da ayɛ no firi 3 kɔsi 5.
Nkontaabuo Nsusuiɛ: Blowdown Volume=Evaporation Loss ÷ (Concentration Cycle − 1) Closed-loop systems no wɔ nsuo a wɔde petepete mu a ɛwɔ base volume ketewa bi, na ɛde blowdown mpɛn dodoɔ a ɛba fam ne discharge volume a ɛsua ba. Nhyehyɛe ahorow a wɔhwɛ nsu pa so denneennen betumi atrɛw bere a wɔde bɔ no mu na ama nsu a wɔde yɛ aduru a wɔhwehwɛ no so atew bio.
Sɛ wɔka adehwereɛ ahodoɔ mmiɛnsa no nyinaa bom a, wɔ adwumayɛ tebea a ɛyɛ gyinapɛn mu no, dɔnhwerew biara makeup nsuo a ɛwɔ closed-loop systems nyinaa yɛ 0.5%–1.5% pɛ wɔ spray circulation flow mu. Sɛ wɔdan no kɔ main process circulation flow, nsuo a wɔde di dwuma nyinaa yɛ 10%–20% pɛ wɔ open cooling towers a ɛyɛ pɛ specification.
Ntotoho a egyina 500 m3/h closed-loop process cooling system so: abantenten a wɔabue mu no hia 10–15 m3 makeup nsu dɔnhwerew biara, bere a closed-loop nhyehyɛe no di 0.5–1.5 m3 pɛ dɔnhwerew biara. Sɛ wɔde nnɔnhwerew 20-kɔ so yɛ adwuma da biara a, wobetumi akora nsu bɛboro tɔn 170 so, a ɛne bɛboro tɔn 50,000 a wɔkora so afe biara no yɛ pɛ, na ɛtew nsu dodow nhyɛso ase kɛse wɔ mmeae a nsu ho yɛ na.
III. Nsakraeɛ Titiriw a Ɛka Closed-Loop System Nsuo a Wɔde Di Dwuma
Ɔhyew adesoa ne ambient wet-bulb temperature: evaporation loss surges 20%–30% wɔ ahuhuro tebea a ɛyɛ hyew na ɛyɛ nwini mu. Wɔ awɔw bere a ɔhyew a ɛba fam-mu no, wobetumi de dry cooling mode no ayɛ adwuma denam spray a wɔato mu na ama wɔanya zero makeup nsu a wɔde di dwuma.
Nnwinnade nhyehyɛe: coils a ɛwɔ ntam kɛse ne high-density nsu eliminators twa drift loss, bere a akɛse-capacity sumps tew mpɛn pii makeup refilling.
Nsuo pa ho dwumadie: nsuo a wɔde petepete so a ɛyɛ mmerɛw a wɔfa no ma nsuo a wɔde petepete so no kɔ soro na ɛma nsuo a wɔsɛe no a ɛfa blowdown-mu no so tew.
System tightness: leakage a ɛwɔ mu circulation pipelines ne valves kakra ma nsu kronkron makeup volume kɔ soro kakra. Nhwehwɛmu a wɔyɛ no daa no betumi asiw leakage loss ano a ɛba fam sen 0.05%.
IV. Nsuo a Wɔde Di Dwuma Ho Nsɛm a Mfaso Wɔ Mfiridwuma mu
800 m3/h closed-loop cooling system ma data centers ne ahoɔden a wɔkora so: static filling volume nyinaa bɛyɛ 90 m3; dɔnhwerew biara aduruyɛ nsu a ɛyɛ 1.2–1.8 m3 wɔ awɔw bere mu ɔhyew a ɛkorɔn ase, zero aduruyɛ nsu wɔ awɔw bere mu dry cooling mode.
400 m3/h closed-loop unit ma chemical crystallization cooling: static filling volume a ɛyɛ 45 m3, sɛ wɔkyekyem pɛpɛɛpɛ a, dɔnhwerew biara makeup nsu a ɛyɛ 0.6–1.0 m3 afe mũ no nyinaa.
Wɔ bere tenten-dwumayɛ mu no, closed-loop cooling systems de nsuo-koraeɛ mfasoɔ mmienu ma: bere baako{3}}bere a wɔde hyɛ mu ma a ɛba fam ne makeup nsuo a wɔhwehwɛ a ɛkɔ so sua. Saa berɛ yi, nsuo a wɔde di akɔneaba wɔ mu no kɔ so tew bere tenten a wɔmfa mfimfini nsi ananmu mpɛn pii, ɛtew nsuo a wɔde di dwuma ne nsuo a wɔde yɛ adwuma ho ka so firi baabi a ɛfiri no, na ɛdi mfiridwuma mu nsuo a wɔkora so ne mframa a wɔsɛe no so tew ho nhyehyɛeɛ so.
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