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| Brand Name: | YUHONG |
| Model Number: | - |
| MOQ: | 1 SET |
| Price: | 2000 ~ 10M USD |
| Delivery Time: | 45-150 DAYS |
| Payment Terms: | L/C,T/T |
Forced Draught Air Cooled Heat Exchanger with API 661, Petroleum Industry
Selection of Induced Draught or Forced Draught
The air-cooled heat exchanger shall be either a forced-draught exchanger or an induced-draught exchanger and shall include the components shown in Figure 1 and any auxiliaries such as ladders, walkways and platforms. Forced-draught fans should be used, except that induced-draught fans should be considered for the following situations:
| A) Forced Draught | B) Induced Draught | ||
| 1 | Tube Bundle | 6 | Fan |
| 2 | Header | 7 | Fan Ring |
| 3 | Nozzle | 8 | Fan Deck |
| 4 | Supporting Column | 9 | Drive Assembly |
| 5 | Plenum | 10 | Fan Guard |
[Figure 1]
Construction of Tube Bundle
Tube bundles shall be rigid, self-contained, and designed for handling as a complete assembly.
| Typical Construction of Tube Bundles | |||
| 1 | Tubesheet | 11 | Tube support cross-member |
| 2 | Removable cover plate | 12 | Tube keeper |
| 3 | Removable bonnet | 13 | Vent |
| 4 | Top and bottom plates | 14 | Drain |
| 5 | Tube | 15 | Instrument connection |
| 6 | Pass partition | ||
| 7 | Gasket | ||
| 8 | Nozzle | ||
| 9 | Side frame | ||
| 10 | Tube spacer | ||
[ A) Removable cover-plate header ]
[ B) Removable bonnet header ]
Tubes and Finning
Maximum Fin Selection Temperature for Fin Bonding Types:
| Fin Bonding Type | Maximum Process Temperature °C (°F) |
| Embedded fins | 400 (750) |
| Externally bonded (hot-dip galvanized steel fins) |
360 (680) |
| Extruded fins | 300 (570) |
| Footed fins (single L) & overlap footed fins (double L) |
130 (270) |
| Knurled footed fin, either single L or double L |
200 (390) |
| Externally Bonded (welded or brazed fins) |
> 400 (750) (maximum should be negotiated) |
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