In KARAJET steam jet ventilators live steam expands through the inlet nozzle, issuing at high velocity. The powerful suction thus produced entrains air or vapours via the suction connection. The suction medium, air, gas or vapour is either drawn in from the surrounding atmosphere or from the suction housing, depending on the type of ventilator construction used.
Advantages
- An almost unlimited life when a suitable material of construction is chosen
- Installed in virtually all situations
- Larger compression (difference between suction and back pressure) than liquid jet ventilators
- Low priced
- Maintenance free
- Manufactured from various materials of construction
- No moving parts
- Quickly and easily put into operation
Applications
Steam jet ventilators convey air, gases and vapours against small pressure differences and are used, e. g., to:
- A variety of processes such as degassing, drying, etc
- As forced blast blowers, or stack ventilators for boiler burners
- To draw off and mix exhaust gases from the thermal afterburning
- To draw waste air, bad-smelling gases and vapours from working and storage areas
- To ventilate tanks, e.g. on ships
Range of Operation
- Motive steam pressure between 0.5 and 10 bar
- The achievable pressure difference between the suction and counter pressure (the compression of the steam jet ventilator: ∆p = p – p0) from 0.1 to 500 mbar
- Suction ratio (ratio of motive mass flow to suction mass flow) between 0.1 and 200
Materials
- Cast iron
- Cast stainless steel
- Other materials on request
- Steel or stainless steel
- Temperature change resistant porcelain
