Zigzag air-cooled heat exchangers with two fans type АВЗ are designed for cooling and condensation of vapor, gaseous and liquid media in the technological processes of oil refining, petrochemil and other industries. The vessel consists of six tube bays made up of finned bimetallic tubes. The tubebays are arranged in the form of a zigzag at an acute angle to each other and to a horizontal support platform. The bays are mounted on a metal structure. There is a driver with a fan impeller on a separate frame. A fan impeller while rotating in the manifold cavity, drifts the air through the tube side of a bay and thus cools the product.

Zigzag air-cooled heat exchangers with two fans type АВЗ are designed for cooling and condensation of vapor, gaseous and liquid media in the technological processes of oil refining, petrochemil and other industries. The vessel consists of six tube bays made up of finned bimetallic tubes. The tubebays are arranged in the form of a zigzag at an acute angle to each other and to a horizontal support platform. The bays are mounted on a metal structure. There is a driver with a fan impeller on a separate frame. A fan impeller while rotating in the manifold cavity, drifts the air through the tube side of a bay and thus cools the product.

Specification

Parameters

Values

Heat exchanging area:

from 3400 to 12000 m2

Nominal pressure:

0,6; 1,6; 2,5; 4,0; 6,3 МPа (6, 16, 25, 40 and 63 kg/сm2)

No of bays per vessel:

6 pcs.

Fan impeller diameter:

2,8 m

Slow-speed motor type:

22; 30; 37 kW

No of fan impellers per vessel:

2 pcs.

Fan impeller rotating speed::

428,6 rev/min

Tube finned surface factor (nominal):

9; 14,6; 20

No of tube rows per bay:

4; 6; 8

No of tube passes per bay:

1; 2; 2а; 4; 4а; 8

Tube length in bay:

8 m

Bay main material:

Б1;Б2.1;БЗ;Б4;Б5

Tube bay type:

covered

Remark: material of inner tubes depends on the main material: Б1 – steel20; Б2.1 - 15Х5М or Х8; БЗ-12Х18Н10Т, 08Х18Н10Т, 08Х22Н6Т; Б4 - steel 10Х17Н13М2Т; Б5- ЛАМШ77-2-0,05.

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