In industrial boiler system control, to maintain quality of boiler feed water and to control steam quality steam is very important parameter. Since feed water is used for producing steam and heat. And maintaining the quality of water is very important thing to guarantee life of piping system and performance of the plant especially in Power plant.
This steam and water sampling system is monitoring & analyzing the quality of samples which are sampled from many points in feed water and steam supplying system of power plant. And these monitoring and analysis results are using to prevent piping corrosion and economic system operation. Especially it is used to prevent radiation exposure and further accident in Nuclear power plant.
To apply on-line analyzer to hot and high pressure samples all samples decrease pressure and cool down sample temperature to low pressure and temperature by sample handling system in sampling panel. And then samples are analyzed and monitored by on- line analyzers or manually taken as grab sample.
All analysis results are indicated on analyzer and recorded on recorders at control panel and/or transmitted to remote facilities for determination whether plant chemistry is being maintained as scheduled. Also whether significant components of the plant cycle are being operated in good conditions.
Steam and water sampling system is consist of System control panel, Sample conditioning panel and Analyzer panel as below
Control panel
- Control electrical devices in sampling system
- Indicating and Recording analysis data
- Transmit Analysis data to control room or Data logging system
- Alarm abnormal condition and system fault on annunciator
Sampling conditioning panel
- Control sample pressure and cool down sample temperature
- Monitoring sample condition and flow rate
- Transfer detected abnormal sample condition to control panel
- Provide grab sampling
Analysis panel
- Analysis chemical components pH, conductivity and sodium
- Alert abnormal Analysis data and analyzer fault and transfer to control panel
