One set of 10 tph, 13kg pressure coal-firedboiler and one set of 240 million Kcal thermal fluid heater from ZOZEN areshipped to beautiful Mauritius in April 2014, to serve for Consolidated FabricsLimited., who is an international fabric supplier. These two boilers have beenput into use in the summer, let’s hear what the chief engineer is saying aboutthem:
Interviewer: Hello dear sir, how is theboiler has been running?
CFL：Running stable,easy for operators, it is just what we have expected.
Interviewer: May I know why you decided tobuy 2 boilers for 1 plant?
CFL：Because we havesome sections like hot pressing, they need high temperature as 240°C, and thermal fluid heater can reach very high temperature withoutconsidering the pressure, so we bought 1 set of steam boiler and 1 set ofthermal fluid heater.
Interviewer: But why don’t you use 1 set ofhigh temperature steam boiler, to save the cost of thermal fluid heater?
CFL: In traditional way we do it that way,but 2.5mpa boiler outlet temp. is 225-degree C, when it reaches where needs it,it is 200-degree C, so sometimes the quality cannot be guaranteed. So thermalfluid heater is more reliable.
Interviewer: But is this combination costis too much higher than 1 set of steam boiler?
CFL: Actually, not so much higher, becauseif we choose 1 set 2.5Mpa steam boiler, even without considering the temperaturecan reach the requirement, this boiler is still very expensive because the bigpressure require thick wall and high standard of manufacturing, the piping,valves and our process machines also need high pressure resistance, so thewhole system is very expensive. Also operating cost is very high, since itoutputs high temp. and high-pressure steam, also thermal loss of steam boileris double of thermal fluid heater.
Interviewer: Then how did you find thiscombination for your plant？
CFL：Yes, thermal fluidheater + steam boiler is commonly used in textile plants, we visited ZOZEN’scustomer, many big companies are doing this way.