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API 661 Forced Draft Air Cooled Exchanger for Petroleum

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API 661 Forced Draft Air Cooled Exchanger for Petroleum

Driver Type : Forced Draught

Model Number : -

Certification : ASME , U STAMP , PED, API , ABS, LR, DNV, GL , BV, KR, TS, CCS

Place of Origin : China

MOQ : 1 SET

Price : 2000 ~ 10M USD

Supply Ability : 10000 Tons/Month

Delivery Time : 45-150 DAYS

Packaging Details : Pallet & Wooden Case

STANDARD : API 661, ASME PTC 30, ISO 15156, NACE MR0103

Brand Name : YUHONG

Payment Terms : L/C,T/T

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API 661 Forced Draft Air Cooled Exchanger for Petroleum
Forced Draught Air Cooled Heat Exchanger with API 661, Petroleum Industry
Need a custom quote for Air Cooled Exchangers? Contact our engineering team directly: jimmy@steelseamlesspipe.com
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:
  • If temperature control of the process is critical and sudden downpour of rain (i.e. excessive cooling) can cause operating problems
  • To minimize the risk of hot-air recirculation
  • On sites where air-side fouling is a significant problem, however forced draft can be used if screens are specified
  • To improve thermal performance in the event of a fan failure (due to the stack effect)
  • In hot climates, where the fan plenum chamber shields the bundle from the sun
  • For services that have a temperature approach of 11 °C (20 °F) or less
API 661 Forced Draft Air Cooled Exchanger for Petroleum
Figure 1: Forced Draught vs Induced Draught Configurations
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
Construction of Tube Bundle
Tube bundles shall be rigid, self-contained, and designed for handling as a complete assembly.
API 661 Forced Draft Air Cooled Exchanger for Petroleum
A) Removable cover-plate header
API 661 Forced Draft Air Cooled Exchanger for Petroleum
B) Removable bonnet header
Typical Construction of Tube Bundles
1 Tubesheet
2 Removable cover plate
3 Removable bonnet
4 Top and bottom plates
5 Tube
6 Pass partition
7 Gasket
8 Nozzle
9 Side frame
10 Tube spacer
11 Tube support cross-member
12 Tube keeper
13 Vent
14 Drain
15 Instrument connection
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)
API 661 Forced Draft Air Cooled Exchanger for Petroleum
Tubes and Finning Construction

Product Tags:

Forced Draught Air Cooled Heat Exchanger

      

Petroleum Industry Air Cooled Heat Exchanger

      

Petroleum Industry air cooling heat exchanger

      
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