Separator

Technical specifications :

In various gas treatment or steam conditioning processes, the flows circulating at the inlet or outlet of heat exchangers are sometimes loaded with liquid or solid particles. As an example, a common application consists in carrying out a first dehumidification step at the outlet of an air cooler. Indeed, by cooling atmospheric air (characterized by its relative humidity), a condensation of part of the vapour contained takes place. This condensed steam can be found in the form of droplets or mist depending on the flow regimes (separate phase, intermittent, dispersed,...) and the separation device must be able to collect the liquid phase on one side and allow the gas to continue its journey through the process. The separation can be done by devices such as cyclone or coalescing mats. In other situations, if we take the case of a steam or refrigerant in a thermodynamic cycle, it is necessary to avoid dragging a liquid phase towards a compressor or a turbine. In these cases the separators can be of the coalescing mat or baffle type. In all these applications, the pressure drop must be controlled for reasons of the overall performance of the installation.  

Some technical data on wet air and dry steam applications:

 

Name of item	Wet air cooler	LP separator
Fluid	Wet air	Saturated steam
upstream operating pressure	21.45 bar	3.2 bar a
percentage / liquid flow rate	0.039 kg/s	90%
Inlet temperature	35 °C	saturation
After separation temperature	35 °C	175 °C
Gas flow rate/separated steam	12.6 kg/s	30 t/h
Pressure drop	0.08 bar	0.09 bar
Design pressure	24 bar	-1/ 4.2 bar
Hydrotest pressure	15 bar	6 bar
Design temeprature	-10 / 120 °C	0 / 250 °C
Welding befficiency	0,7	0,85
Corrosion allowance	3	1.5
Material
shell	P265 GH	P265 GH
Separator element	304 L	304L
nozzles	P235 GH -TC1	P235 GH – TC1

   

Geometric Specificities :

  Integrated in exchanger outlet box (wet air cooler) and vertical separator tank (superheated steam)  

Constructive Specificities :

Code: ASME VIII (cooler) CODAP (superheated steam) Regulation: DESP 97/23/EC Welding Processes: ASME IX or EN 288-3 Approved Welders' approvals: According to ASME IX or EN 1418 Semi-automatic MIG/MAG processes

Quality Specificities:

LOFC according to customer and local specifications.    

Séparateur cyclone