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API 661 Forced Draft Air Cooled Exchanger for Petroleum

Name: API 661 Forced Draft Air Cooled Exchanger for Petroleum
Brand: YUHONG
Price: 2000 USD

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Model Number :	-
Certification :	ASME , U STAMP , PED, API , ABS, LR, DNV, GL , BV, KR, TS, CCS
Price :	2000 ~ 10M USD
Supply Ability :	10000 Tons/Month
Delivery Time :	45-150 DAYS
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: [email protected]

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

Forced Draught and Induced Draught Air Cooled Heat Exchanger configurations

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.

Removable cover-plate header construction

A) Removable cover-plate header

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)

Tubes and Finning Construction

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API 661 Forced Draft Air Cooled Exchanger for Petroleum

API 661 Forced Draft Air Cooled Exchanger for Petroleum

API 661 Forced Draft Air Cooled Exchanger for Petroleum

Forced Draught Air Cooled Heat Exchanger

Petroleum Industry Air Cooled Heat Exchanger

Petroleum Industry air cooling heat exchanger

API 661 Forced Draft Air Cooled Exchanger for Petroleum

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