Dɛn ne sɛnea wɔayɛ spiral tube heat exchanger?

Spiral-tube heat exchanger yɛ ɔhyew sesa afiri a ɛyɛ ketewaa a wɔde ɔhyew-transfer tubes a wɔbobɔw kɔ spiral nhyehyɛe a ɛwɔ ɛnne ne ne kwan a ɛkɔ akyiri pɔtee so na ɛyɛ; nsu a ɛyɛ hyew ne nea ɛyɛ nwini sen fa nsukorade no ne akorade no fã, na ɛsesa ɔhyew fa nsukorade no afasu so.

·Ne nyansapɛ titiriw ne nhyehyɛe ne sɛ ɛbɛma ɔhyew a ɛkɔ baabiara adwumayɛ nyinaa anya nkɔso wɔ baabi a anohyeto wom denam bere koro mu a ɛbɛtrɛw nsu a ɛsen fa akwan so, nsu a ɛyɛ basabasa a ɛkɔ soro, ne ɔhyew a ɛkɔ baabi a ɛyɛ den a ɛbɛma ayɛ kɛse no so.

Sɛ wɔde toto atetesɛm kwan so tẽẽ-tube nhyehyɛe ahorow ho a, spiral nhyehyɛe no ma ɔhyew a wɔde fa nneɛma mu tumi kɔ soro kɛse wɔ unit volume biara mu a ɛnma nnwinnade no nyinaa kɛse nkɔ soro kɛse, na ɛma ɛsom bo kɛse ma nhyehyɛe ahorow a ɛyɛ adwuma yiye, a ɛkora ahoɔden so.

Helical nhyehyɛe no sesa unidirectional axial flow nhyehyɛe a wohu wɔ amanne kwan so paipu tẽẽ mu, de transverse rotational motion to axial flow no so na ɛnam so ma ɛyɛ complex, three{0}}dimensional flow field.

·Saa nsuo a ɛtɔ so mmienu yi ma nsuo a wɔde frafra no yɛ kɛseɛ, ɛma ɔhyew a ɛkɔ soro pɛpɛɛpɛ wɔ nsuo a ɛyɛ hyeɛ ne nsuo a ɛyɛ nwini ntam, na ɛma ɔhyew a ɛkɔ baabi a ɛtu mpɔn no di dwuma yie.

·Wɔ Reynolds dodow a ɛba fam mpo mu no, geometry no ma turbulence-te sɛ intensification effects ba, na ɛma ɛfata titiriw ma high-viscosity fluids anaasɛ transitional flow regimes.

·Bio nso, nsuo a ɛsen a ɛyɛ basabasa kɛseɛ no brɛ mpɔtam hɔ nsuo a ɛbɛtɔ ne efĩ a ɛbɛtumi aba no ase, na ɛnam so ma adwumayɛ mu ahoɔden a ɛkyɛ-yɛ kɛseɛ.

·Wɔ helical-coil ɔhyew exchangers nhyehyɛe mu no, ɛsɛ sɛ wosusuw abusuabɔ a ɛka bom a ɛda ɔhyew adwumayɛ ne nsu a ɛsen ntam no ho, efisɛ ɔhyew a wɔde kɔ baabi foforo a ɛkɔ soro no taa de nhyɛso a ɛkɔ soro ka ho.

·Nsusuwii nhyehyɛe no taa de n’ani si ɔhyew a ɛkɔ baabi foforo nyinaa nsusuwii (U-bo) so bere a ɛhyɛ nhyɛso a wɔma ho kwan no ano hye na ama wɔanya nhyehyɛe no ahoɔden a eye sen biara.

·Ɛdenam nsakrae a wɔyɛ wɔ parameters te sɛ coil radius, pitch, tube diameter, ne flow velocity distribution so no, wobetumi anya nhyehyɛe a eye sen biara ama adwumayɛ tebea ahorow; sɛ nhwɛso no, tebea horow a ɛwɔ ɔhyew a ɛkɔ soro-nsonsonoe mu no pɛ nsusuwii ahorow a basabasayɛ kɛse wom, bere a nhyehyɛe ahorow a wɔde di dwuma a ɛba fam-ahoɔden-de di dwuma no ani gye nhyehyɛe ahorow a nhyɛso a ɛba fam wom ho.

·Mfiridwuma nhyehyeɛ taa de segmental calculations anaa numerical simulations di dwuma de yɛ mpɔtam hɔ nhwehwɛmu wɔ flow regions ahodoɔ ho, na ɛnam so ma design no yɛ pɛpɛɛpɛ.