Coal-fired steam boiler how to carry out selection

Coal-fired steam boiler is a more specialized equipment, if you do not understand the structure of the steam boiler and specific parameters of the steam boiler selection, often do not know how to choose the right steam boiler for their own use. Below we will explain the parameters of the steam boiler one by one, so that everyone in the steam boiler selection, will not be at a loss.
1, the rated evaporation of steam boiler
Rated evaporation is a term for steam boiler, that is, the power of the steam boiler. General steam boiler power are rated evaporation (unit: tons) to calculate. Rated evaporation is the output of the boiler to heat water into steam per hour. This is the main parameter we need to consider when selecting a steam boiler.
2, the rated pressure of the steam boiler
Rated pressure is the pressure of steam produced by the steam boiler. The temperature of steam produced at different pressures is different. 1.0Mpa steam temperature is 184℃, while 1.25Mpa steam temperature is 193℃. We need to choose according to their own use to achieve their desired temperature of the steam boiler.
3, steam boiler feed water temperature
Some boiler manufacturers in order to mark up their rated evaporation, often in the feed water temperature. Some steam boiler manufacturers in the calculation of the rated evaporation, the feed water temperature deliberately raised to 90 ℃ or 100 ℃ or even higher, and in the actual use of the process can not reach such a high temperature of the feed water, there will be a failure to achieve the rated steam production.
4, the thermal efficiency of the steam boiler
Steam boiler thermal efficiency is the most important parameter we need to consider when selecting a steam boiler. Because this is related to the future operating costs incurred in the process of use. The higher the thermal efficiency, the lower the operating costs in the future. For example, now Liju new research and development of inspection-free steam boiler, thermal efficiency is higher than the conventional steam boiler about 10% to 20%. In the actual operation of the process can save more than one hundred thousand dollars a year.
5, steam boiler steam time
Steam boiler steam time is the steam boiler in the start-up operation to produce steam to meet the temperature requirements of the time spent, the shorter the time, the less energy is wasted. Generally the steam boiler steam time is about twenty minutes, Liju steam boiler only needs three minutes to produce steam. In addition to the energy-saving benefits of faster steam generation, it also improves the efficiency of equipment that requires steam to operate.