Heat transfer solutions Clean steam generators
6
Technical date
Compressed air: A 6 bar g compressed air supply is required; where this is unavailable an optional compressor can be supplied with the unit (at extra cost). Electrical requirements: 400 V 3-phase 50 Hz ( + NEUTRAL). A fused isolator must be incorporated in the supply line as near as possible to the unit. If the CSM-PD is to form part of a system to meet the HTM 2010 and HTM 2031 requirements we would recommend operating at >85 °C and using the following feedwater quality/purity. Whilst not mandatory the table below gives a guide to recommended typical values.
Pneumatics
Electrical
Property
Maximum value
Ammonium
0.2 mg/l
Heavy metals substitute
0.1 mg/l
Feedwater quality
Chloride
0.5 mg/l
Nitrate
0.2 mg/l
Residue on evaporation
30.0 mg/l
Phosphate
0.1 mg/l
Silicate
0.1 mg/l
Electrical conducivity at 25 °C 35.0 μS/cm
The control unit in addition to the logic and temperature and level PID controllers, include; - Minimum and maximum water level alarms - Visual level indication - Water temperature alarms - Lock-out devices - Interface with supervision system (BMS)
Control
6.1 55
Safety information, installation and maintenance For full details see the Installation and Maintenance Instructions supplied with the unit. For spares information refer to the Installation and Maintenance Instructions supplied with the pre-heating and degassing package. Typical specification The CSM-PD package is to provide a clean or pure steam generator designed and built to produce steam to the HTM 2031 standard. The operating condition of the steam generator is to raise 600 kg/h of clean steam at 3 bar g when supplied with plant steam at 8 bar g. The CSM-PD will provide a minimum of 20 minutes autonomy. All items are to be pre-assembled and mounted on to a skid base. Sizing Sizing is totally dependant upon the clean steam generation requirements (secondary, clean steam production flowrate) For example: A clean steam generator producing 600 kg/h clean steam will require a CSM-PD500. That is: 600 kg/h multiplied by a factor of 0.33 = 200 kg/20 min = CSM-PD500 (working capacity = 370 litres). How to order Example: 1 off Spirax Sarco CSM-PD500 pre-heating and degassing package. Please provide details of primary steam pressure, clean steam pressure, clean steam flowrate, feedwater system and flowrate. Ancillary items to be used depending on installation: - Isolation valves - Separators - Strainers Other items may be required, please contact Spirax Sarco to discuss the full installation.
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CSM-PD Pre-heating and Degassing System for use with Clean and Pure Steam Generators TI-P486-12 TES Issue 2
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