Heat ni Tsuɔ Nii Jogbaŋŋ
- Kabon kɛ Kabon ni akɛ dade fee
- Dade ni bɛ ŋmɔlɔ
- Akɔɔble kɛ Nikel Aloi
- Heat ni Tsuɔ Nii Jogbaŋŋ
- Paipi He Nibii
- Paip Flɛnji
- Gasket, Bolt kɛ Nut
- Nitsumɔhe Valves
01
Finned Tubing kɛha Dɔlɛ He Nitsumɔ He Hiɛyaa
Gbɛi ni Atsɔɔ nɔ Afeɔ Finned Tubes
Akɛ ŋaai srɔtoi feɔ Finned tubes ni damɔ nibii ni akɛtsuɔ nii, nitsumɔ, kɛ nitsumɔ he taomɔ nii anɔ:
1. Fins ni ajie (Fins ni yɔɔ ekome)
- Akɛ bimetallic tube (tamɔ, aluminum kponɔgbɛ fã ni yɔɔ dade loo akɔɔble shishitoo nɔ) tsɔɔ tsɔne ko ni jieɔ ŋmeii kɛjɛɔ kponɔgbɛ fã lɛ mli lɛ mli.
- Ehaa tsɔne mli hewalɛ ni hi jogbaŋŋ kɛ hulutsoo ni yaa hiɛ.
- Akɛtsuɔ nii yɛ nitsumɔi ni mli edɔ waa tamɔ hulutsoo sɛɛkuu gbɛjianɔtoi.
2. Fins ni Akɛwo (Spiral) mli
- Akɛ dade tsɔne (bei pii lɛ aluminum loo akɔɔble) fĩɔ shishitoo tsɔne lɛ he ni akɛ nɔ ni akɛkpɛtɛɔ nii ahe, nɔ ni akɛkpɛtɛɔ nii ahe, loo nɔ ni akɛkpɛtɛɔ nii ahe lɛ fĩɔ he.
- Ehe ehiaaa ni akɛtsuɔ nii babaoo yɛ kɔɔyɔɔ ni haa hulu tsoɔ lɛ mli.
- Ehiii kɛha hulutsoo be ni mli wa waa yɛ bond ni baanyɛ afite lɛ hewɔ.
3. Nibii ni Akɛwo Mli (G-Fin) lɛ
- Akɛ tsɔne ko woɔ tsɔne lɛ mli, ni akɛ fin strip woɔ mli ni akɛ tsɔne ŋmɛɔ he ni eyɔɔ lɛ.
- Thermal ni hi jogbaŋŋ kɛ shitee-kɛ-woo kɛha fin loosening.
- Nɔ ni afɔɔ namɔ yɛ tsɔnei ni akɛwoɔ la mli kɛ tsɔnei ni akɛwoɔ nu mli lɛ amli.
4. Fins ni Akɛ Weld Ewo Mli
- Akɛ ŋmeii lɛ eko fɛɛ eko woɔ tsɔne lɛ nɔ (tamɔ, L-nane, ŋmeii ni akɛwoɔ nɔ, loo ŋmeii ni akɛ stud-welded woɔ mli).
- Ehi kɛha nitsumɔi ni mli edɔ waa kɛ nɔnyɛɛ ni mli wa waa (tamɔ, economizers, hulutsoo ni fiteɔ lɛ sɛɛkuu).
- Ejara wa fe no shi ehiɔ shi be kakadaŋŋ.
5. Fins ni Kɔɔ Shi
- Fins lɛ joɔ foi kɛyaa tube axis lɛ he, ni akɛtsuɔ nii yɛ he ni axial flow lɛ sumɔɔ (tamɔ, yɛ kɔɔyɔɔ mli fɛ̃i kɛ kɔɔyɔɔ mli fɛ̃i komɛi amli).
- Bei pii lɛ, anaa yɛ petrokemikal nitsumɔi amli.
6. Fins ni Akɛ Nibii Ewo Mli
- Akɛ ŋmeii bibii woɔ tsɔne lɛ hiɛ koni eha basabasafeemɔ kɛ dɔlɛ ni tsɔɔ mli lɛ aya hiɛ.
- Akɛtsuɔ nii yɛ fluidized saatso nɔ la tsakemɔi kɛ boilers amli.
Finned Tubes henɔi ni ehe gbɛi yɛ Heat Transfer Nibii Amli
1. Helik (Spiral) Fin Tubii
- Nɔ ni afɔɔ naa waa, ni akɛtsuɔ nii yɛ kɔɔyɔɔ ni haa hulutsoo tsakeɔ (ACHEs) mli.
- Nibii ni akɛtsuɔ nii: Aluminium (kɛha ŋmeii ni nyɛɔ eshiɔ ŋmeii), akɔɔble, loo dade ni sɛɛ efooo.
2. Fin Tubes ni Ajieɔ kɛjɛɔ Mli
- He ni hulutsoo lɛ tsuɔ nii jogbaŋŋ, ni akɛtsuɔ nii yɛ hulutsoo ni ajieɔ kɛjɛɔ mli lɛ mli (HRSGs) kɛ economizers.
- Shishitoo tsɔne: Carbon dade / dade ni bɛ ŋmɔlɔ; Fin nibii: Aluminium.
3. L-Naji & LL-Naji Finne Tui
- Fins lɛ yɛ "L" su yɛ shishigbɛ koni ekɛ amɛ afee ekome jogbaŋŋ.
- Akɛtsuɔ nii yɛ tsɔne ni akɛtsuɔ nii kɛjieɔ muji kɛ tsɔne ni haa hulu kpɛɔ lɛ mli.
4. Fins ni yɔɔ ŋmeii
- Fins lɛ yɛ ŋmɔlɔi ni haa basabasafeemɔ kɛ dɔlɛ ni tsɔɔ mli lɛ yaa hiɛ.
- Akɛtsuɔ nii yɛ gas-kɛ-gas latsaa tsakemɔi amli.
5. Fin Tubii ni Akɛ Knurle Ewo Mli
- Shikpɔŋ lɛ nɔ ŋmɔlɔŋmɔlɔ haa hulutsoo ni yaa hiɛ yɛ tsɔnei ni haa hulu tsoɔ kɛ tsɔnei ni haa hulu tsoɔ lɛ amli lɛ yaa hiɛ.
6. Fin Tubes ni Akɛwoɔ Mli
- Wavy fins haa ŋwɛi ŋta kɛ turbulence yaa hiɛ, ni ehaa nitsumɔ lɛ yaa hiɛ.
Nibii ni akɛhalaa Finned Tubes
- Temperature & Pressure: Nibii ni he hiaa waa lɛ he miihia ni akɛ tsɔne ni akɛwoɔ tsɔne mli loo tsɔne ni ajieɔ kɛjɛɔ mli lɛ atsu nii.
- Nɔ ni nyɛɔ eshiɔ ŋmeii: Aluminium ŋmeii kɛha shihilɛi ni mli edɔ, dade ni bɛ ŋmeii kɛha shihilɛi ni mli wa.
- Nu Henɔ: Gas-sɛɛ ŋshɔŋlooi lɛ he miihia ni amɛná he ko ni nɔ kwɔ (helical/serrated), yɛ be mli ni nu-sɛɛ ŋshɔŋlooi lɛ baanyɛ amɛkɛ ŋshɔŋlooi ni yɔɔ shishigbɛ lɛ atsu nii.
- Jara: Fins ni akɛwo mli lɛ jara waaa, yɛ be mli ni extruded/welded fins lɛ jara wa shi ehiɔ shi be kakadaŋŋ.
Nibimɔi
- Hewalɛ He Nitsumɔhei: Kɔɔyɔɔ ni haa hulu tsoɔ, HRSGs.
- Mu kɛ Gas: Nibii ni haa hulu tsoɔ, flɔnɔɔi.
- HVAC: Nibii ni haa hulu tsoɔ, nibii ni haa hulu tsoɔ.
- Tsofai: Nibii ni akɛwoɔ la mli ni fiteɔ, nibii ni haa hulu tsoɔ.
Finned Tube kɛ Fin Nibii Ahe Nitsumɔ
Nibii ni akɛbaatsu nii kɛha tsɔnei ni akɛwoɔ hulutsoo mli lɛ damɔ nibii tamɔ dɔlɛ, nɔnyɛɛ, ŋmei ni nyɛɔ efiteɔ, hulutsoo ni tsɔɔ mli, kɛ shika nɔ. Dade kɛ dade nibii ni ale waa ni akɛtsuɔ nii kɛfeɔ tsɔnei ni akɛwoɔ tsɔne mli lɛ yɛ shishigbɛ, ni ato amɛhe gbɛjianɔ yɛ tsɔnei ni yɔɔ shishigbɛ kɛ tsɔnei ni akɛwoɔ tsɔne mli lɛ amli:
1. Shishitoo Tube Nibii (Core Tube)
Base tube lɛ hiɛɔ nu ni ji shishijee nɔ lɛ (nu/gas) ni esa akɛ edamɔ nɔnyɛɛ, latsaa, kɛ ŋmeii anaa.
Kabon dade (CS)
- Yibɔi: ASTM A179, A192, A210 (kɛha tsɔnei ni akɛwoɔ nu mli kɛ dɔlɛ tsakemɔi)
- Ehi: Ejara waaa, hewalɛ kpakpa, ehi kɛha nitsumɔi ni he wa waa.
- Ehiii: Eyɛ mlɛo akɛ ebaafite; bei pii lɛ akɛtsuɔ nii kɛ nibii ni buɔ mɔ he loo be mli ni shihilɛ lɛ bɛ nɔ ko ni fiteɔ nii.
- Nitsumɔi: Boiler, shika helɛtemɔ, hulutsoo tsɔnei.
Dade ni bɛ ŋmɔlɔ (SS)
- Yibɔi:
- 304/304L – Yiŋtoo ni akɛtsuɔ nii fɛɛ, ni hi jogbaŋŋ ni teɔ shi ewoɔ ŋmeii.
- 316/316L – Ehi jogbaŋŋ kɛha chlorides kɛ acids (ni akɛtsuɔ nii yɛ tsofafeemɔ tsei amli, ŋshɔ mli shihilɛi amli).
- 321/347 – Grades ni ato he gbɛjianɔ kɛha nitsumɔi ni mli edɔ waa (tamɔ, hulutsoo ni ajieɔ kɛjɛɔ kɔɔyɔɔ mli lɛ he nitsumɔ).
- Nɔ ni hi: Ehi jogbaŋŋ ni ekɛteɔ shi ewoɔ ŋmeii, hewalɛ ni mli wa waa.
- Nɔ ni ehiii: Ejara wa, ni ekɛ hulutsoo baa shi fe carbon dade.
- Nitsumɔi: Nitsumɔhei ni tsuɔ tsofai ahe nii, tsofai ahe nitsumɔ, niyenii nitsumɔhei.
Aloi dade (Dɔlɛ ni Nɔ Kwɔ kɛ Fitemɔ Shitee-kɛ-woo)
- Yibɔi:
- T5 (P5), T9 (P9), T11 (P11) – Chrome-molybdenum dade kɛha la ni mli edɔ waa nitsumɔi.
- T22 (P22), T91 (P91) – Akɛtsuɔ nii yɛ tsɔnei ni haa hulu tsoɔ waa kɛ hulutsoo ni ajieɔ kɛjɛɔ mli lɛ amli.
- Ehi: Enyɛɔ eshiɔ hulutsoo be ni mli wa, ehi kɛha latsaa ni naa wa (kɛyashi 600°C+).
- Nɔ ni ehiii: Ejara wa fe carbon dade.
Akɔɔble kɛ Akɔɔble Nibii ni Akɛwoɔ Mli
- 12200 (akɔɔble ni ajie kɛjɛ mli), C70600 (Cu-Ni 90/10), C71500 (Cu-Ni 70/30).
- Ehi: Ehaa hulutsoo lɛ yaa hiɛ jogbaŋŋ, ehi kɛha nitsumɔi ni hulutsoo be lɛ baa shi.
- Ehiii: Eyɛ blɛoo, ni ebaanyɛ efo yɛ nu ni yaa oya lɛ mli.
- Nitsumɔi: HVAC, friji, tsɔnei ni haa nu mli tsɔɔ.
Nickel Alloys (Kɛha shihilɛi ni mli wa waa)
- Yibɔi:
- Inconel 600/625 – Ehe wa waa kɛha oksideshin kɛ kloraid.
- Monel 400 – Enyɛɔ eshiɔ ŋshɔ mli nu kɛ shihilɛi ni mli edɔ waa.
- Nɔ ni hi: Ehe wa waa ni ekɛteɔ shi ewoɔ ŋmɔtɔ, hewalɛ ni mli wa waa.
- Nɔ ni ehiii: Ejara wa waa.
- Nitsumɔi: Ŋshɔ hiɛ mu kɛ gas, tsofafeemɔ nibii.
2. Fin Nibii
Fins haa dɔlɛ yaa hiɛ ni esa akɛ ekɛ thermal conductivity, ŋmei shitee-kɛ-woo, kɛ jara afee ekome.
Aluminium (ni afɔɔ namɔ kɛha Fins)
- Ehi:
- Thermal ni yaa hiɛ waa.
- Ehe waaa, enyɛŋ efite (efeɔ okside layer ni buɔ mɔ he).
- Ejara waaa kɛ akɛto akɔɔble loo dade ni sɛɛ efooo he.
- Nɔ ni ehiii: Ehe shwieɔ shi (~660°C), esaaa kɛha hulutsoo be ni mli wa waa.
- Nitsumɔi: Kɔɔyɔɔ ni haa hulutsoo tsakeɔ (ACHEs), radiator.
Akɔɔble (Ehaa La Tsuɔ Nii)
- Nɔ ni hi: Ehaa hulutsoo lɛ yaa hiɛ jogbaŋŋ, ehi kɛha nitsumɔi ni hulutsoo be lɛ baa shi.
- Nɔ ni ehiii: Ejara wa, ni ekɛ oksideshin baa yɛ hei ni ŋmɔtɔ yɔɔ lɛ.
- Nitsumɔi: Friji, tsɔnei ni haa nu mli tsɔɔ.
Dade ni bɛ ŋmɔlɔ (Kɛha shihilɛi ni mli wa)
- Yibɔi: SS 304, 316, 321 (tamɔ shishijee tsɔne yibɔi lɛ nɔŋŋ).
- Nɔ ni hi: Enyɛŋ efite, ehiɔ shi yɛ hulutsoo be mli.
- Nɔ ni ehiii: Ehe hulutsoo lɛ baa shi fe Al/Cu.
- Nitsumɔi: Tsofafeemɔ tsei, hulutsoo ni fiteɔ lɛ sɛɛkuu.
Kabon dade (Nɔ ni jara waaa)
- Ehi: Ejara waaa, ehe wa.
- Nɔ ni ehiii: Ekɛ ŋmɔtɔ baa oya ja akɛ galvanized loo coated ewo mli.
- Nitsumɔi: Shihilɛi ni ŋmeii bɛ mli, nitsumɔhei ni haa hulu tsoɔ.
Bimetallic Fins (Jeŋ enyɔ lɛ fɛɛ mli nɔ ni hi fe fɛɛ)
- Nɔkwɛmɔnɔ: Aluminium fins ni yɔɔ carbon dade loo dade ni bɛ ŋmɔtɔ nɔ.
- Ehi: Ekɛ Al tsɔne ni tsɔɔ tsɔne mli lɛ kɛ dade hewalɛ feɔ ekome.
- Nitsumɔi: Hewalɛ nitsumɔhei, hulutsoo sɛɛkuu tsɔnei ni haa hulu tsoɔ (HRSGs).
Gbɛtsɔɔmɔ ni kɔɔ Nibii ni Akɛhalaa He
| Nibimɔ | Akɛ Base Tube lɛ he ŋaawoo | Fin Nibii ni Ajieɔ Yi |
| Kɔɔyɔɔ ni haa hulutsoo tsakeɔ | Kabɔn dade / SS 304 | Aluminium (ni afɔɔ namɔ) |
| Boiler kɛ shika helɛtemɔ nibii | Kabɔn dade (A192, P11) | Kabɔn dade / SS |
| Tsofa tsei | SS 316 / Nikel nibii ni akɛfee ekome | SS 316 / Aluminiɔm |
| Friji kɛ HVAC | Akɔɔble | Akɔɔble / Aluminiɔm |
| Gas ni mli edɔ waa | SS 321 / Inkonɛl | SS 321 / Dade ni akɛfee dade ni nɔ kwɔ |
Nibii Titrii ni Esa akɛ Asusu He Beni Ahalaa Nibii ni Akɛbaatsu Nii lɛ
1. Dɔlɛ:
-
- 200°C–500°C: Dade ni bɛ ŋmɔlɔ ni akɛwoɔ ŋmeii amli.
- > 500°C: Dade ni akɛ dade ni mli wa (T22, T91) loo Inconel fee.
2. Shihilɛ ni fiteɔ nii:
- Ŋshɔ hiɛ/ŋshɔ hiɛ: Cu-Ni loo Monel.
- Asidi/tsofa: SS 316 loo nikel nibii ni akɛfee.
3. He Hiamɔ Nii ni Heɔ Latsaa:
- Nɔ ni hi fe fɛɛ: Akɔɔble > Aluminium > Kabon Dade > Dade ni bɛ ŋmɔlɔ.
4. Jara kɛ nitsumɔ:
- Aluminium ŋmeii ni yɔɔ carbon dade tsɔnei anɔ lɛ haa ŋmeii kpakpai.
- Akɛ Nickel alloys tsuɔ nii pɛ kɛji ehe miihia waa.
Ani oosumɔ ni okɛ nɔ kome too lɛ nɔŋŋ aha ? Na wɔ Amrɔ nɛɛ ni okɛ onibimɔ lɛ amaje!
