Product overview
Advantages
Applications
Photo gallery
Technical library
Software
Inquiry information
Heliflow® heat exchangers
Clean steam generators
MicroMix®II water heaters
Plate exchangers
Desuperheaters
|
|
Heliflow Heat Exchanger Applications
|
Vent condensers
|
Vent condensers are often used on storage tanks to reclaim products
contained in the tank and control the harmful emissions that escape from the tank
to atmosphere. During the day, the sun heats the fluid in the tank.
The increase in the system's temperature will cause the vapors in the tank to expand
and increase vaporization of the volatile components as their vapor pressures increase.
By installing a vent condenser on the vessel, the condensible vapors are reclaimed and
refluxed back into the storage tank.
In addition to the venting caused by temperature changes, vapors are exhausted
to atmosphere as the tank is filled. The vent condenser experiences the greatest
thermal duty when the tank is being filled. The heat exchanger, therefore, should be
sized based on the filling case.
Graham has taken the lead in reducing VOC (volatile organic compound) emissions with our design
of specialized vent condensers. These units often are used to recover valuable product
and reduce the load on downstream pollution control equipment at the same time.
Three styles are available for your choosing:
VCIN
- No casing required, most economical choice
- Typically used for new vessels
- Drop tube can be supplied to reflux condensate below liquid level
- Fits inside a flanged vessel connection
|
 |
VCON
- Typically used on existing vessels
- Does not require additional supporting structure
- Mounts on top of flanged vessel connection
|
 |
VCT
- Corrosive fluid can be placed on the tubeside
- Casing can be lower cost material
- Permits sub-cooling of the condensate
|
 |
For additional reading on the subject, go to Condensers Control and Reclaim
VOCs
|
<
top
>
|
