Dɛn Ne Abantenten a Ɛma Onwini a Ɛyɛ Yiye Sen Biara?

 

Sɛ yɛhwɛ core heat exchange nnyinasosɛm ahorow a, cross-flow closed-circuit cooling tower no gye a"cross-mframa a ɛsen + a wɔato mu-kwansin a ɛkyinkyini"nhyehyeɛ: nsuo a ɛma onwini sen kɔ coil paipu a wɔatoto mu a ɛne abɔnten mframa no nni nkitaho tẽẽ, berɛ a abɔnten mframa fa coil paipu ne nsuo a wɔde petepete so no mu tẽẽ, na ɛyɛ ɔhyew sesa nhyehyɛeɛ a ɛwɔ afã mmiɛnsa (gas-liquid-solid). Saa nhyehyeɛ yi ma ɔhyew sesa beaeɛ a wɔde di dwuma no kɔ soro bɛboro 30%, na wobetumi adi onwini ɔhyew nsonsonoeɛ no so pintinn wɔ 5–8℃, a ɛyɛ papa kɛseɛ sene 8–12℃a ɛwɔ open-circuit cooling towers. Saa bere yi nyinaa, akwansin a wɔatoto mu-kyinhyia no di ɔhaw ahorow a ɛfa scaling, corrosion, ne nsu pa ho efĩ a ɛbata open-circuit towers ho no ho dwuma koraa. Wɔtrɛw coil pipes no ahotew kyinhyia no mu kɔ asram 12, a ɔhyew nsakrae a ɛyɛ adwuma yiye attenuation rate nnu 5%. Nea ɛne eyi bɔ abira no, abantenten a wɔabue-a ɛwɔ amansin so no betumi anya ɔhyew a wɔde sesa no yiyedi a ɛkɔ soro kodu 20% wɔ asram asia mu esiane scaling nti.

 

 

 

Wɔ ahoɔden a wɔde di dwuma yiye ho no, cross-flow closed-circuit cooling tower no wɔ mfaso a ɛda nsow titiriw. Ne cross-flow nhyehyeɛ no brɛ static pressure loss a ɛwɔ fan no mu ase kɛseɛ, na supporting high-efficiency variable-frequency fan no sie ahoɔden 25%–30% sene fans a ɛwɔ atetesɛm counter-flow cooling towers mu. Afei nso, saa mfonini yi betumi ayɛ nsakrae wɔ fan ahoɔhare ne mfiase/gyinabea a ɛwɔ spray pump no mu sɛnea onwini adesoa ankasa te. Coefficient of performance (COP) wɔ adesoa fã bi tebea mu no tumi du bɛboro 4.5, bere a COP a ɛwɔ open-circuit cooling towers mu no taa yɛ 2.8–3.2 pɛ. Sɛ nsuo a ɛma onwini no sen 1,000 m3/h a, cross-flow closed-circuit cooling tower no betumi akora bɛboro yuan 100,000 so wɔ anyinam ahoɔden ho ka mu afe biara, a ɛne ahoɔden a wɔkora so ne nea wɔde di dwuma so tew ahwehwɛde ahorow a ɛwɔ mfiridwuma mu no hyia koraa.

 

 

Sɛ yɛhwɛ O&M ne ɔsom nkwa nna a, cross-flow closed-circuit cooling tower no da ɛka nyinaa a ɛba fam adi. Nsuo a wɔatoto mu-kwansin a ɛkyinkyini no ma nnuru a wɔde sa nsuo pa a wɔde di dwuma no so tew, na nnuru a wɔbɔ no yɛ 1/3 pɛ wɔ abantenten a wɔabue-atwa ho ahyia no mu. Bere koro no ara mu no, coil pipes a wɔatoto mu no nni asiane biara sɛ ɛbɛsiw, na ɛtew O&M adwumayɛ so 60%. Nnwinnadeɛ no dwumadie nkwa nna a wɔayɛ no tumi du mfeɛ aduonu, a ɛyɛ mfeɛ 8–10 tenten sene abantenten a wɔabue-kwansin so. Bio nso, ne cross-flow structure no ma abantenten no sorokɔ a ɛba fam, na ɛtew installation space a wɔhwehwɛ no so 25%, na ɛma ɛfata kɛse ma compact layouts wɔ adwumayɛbea ahorow mu anaa adan atifi.

 

 

Ɛsɛ sɛ yɛhyɛ no nsow sɛ sika a wɔde bɛto mu mfiase no wɔ cross-flow closed-circuit cooling towers ho no boro 15%–20% sen nea ɛwɔ open-circuit towers ho. Nanso, ɛnam sika a wɔkora so wɔ ahoɔden ho ka ne O&M ka so no, mpɛn pii no wobetumi asan anya sika a wɔde asie no wɔ mfeɛ 2–3 mu. Wɔ mfiridwuma tebea horow a ɛnyɛ den a adesoa sua na mfutuma pii wɔ mu no, abantenten a wɔabue-a ɛwɔ amansin so no da so ara wɔ mfaso ahorow bi a ɛho ka sua. Nanso, sɛ yɛhwɛ bere tenten-adwumayɛ ne ahwehwɛde titiriw a ɛfa onwini a ɛyɛ adwuma yiye -a, cross{14}}flow closed-circuit cooling tower no ne mprempren nea eye sen biara a wɔpaw wɔ mfiridwuma mu.