How to determine the capacity of a boiler when choosing an industrial boiler is an important issue. Generally speaking, the output or capacity of the boiler should be determined according to the steam consumption or heating area in the production process and the heat supply required for domestic hot water. First of all, the user must find out the total load range; second is the peak situation, including the peak load duration, the frequency of the peak, that is, the periodicity of the peak, such as the number of monthly peaks, weekly, monthly, and winter and summer in a year The difference. After understanding the demand and peak of the boiler load, you can consider the equipment capacity and number of units. In the selection, we must also consider the problem of the amount of emergency shutdown.
The reserve capacity generally refers to a standby boiler. The standby boiler does not need to be started when the original boiler is working normally. If the original boiler fails and is shut down, the standby boiler must be started immediately. This needs to be determined according to the importance of the user itself. If the continuity requirements in production and use are high, the issue of standby equipment must be carefully considered.
The economic load of a general boiler is more than 75% of the rated load, so the actual load of the boiler in use should always be more than 50% of the rated load of the unit itself, which means that the equipment provided by the manufacturer is between 50% and 100% of the rated output. It should be stable and efficient. In the past, users often purchased too much margin for safety reasons, which caused the equipment to operate under low load for a long time, which was very uneconomical. Generally, for boiler rooms with a total capacity of 8 tons / hour or a thermal power of more than 6 megawatts (MW), three units are more suitable. Due to the difference between winter and summer, you can choose different output equipment. However, it is more convenient and economical to choose the same equipment for new boiler rooms in terms of operation, maintenance, and management. Such auxiliary arrangement of auxiliary equipment of boiler room can be reasonably arranged. If you consider the high and low peaks and the big differences between winter and summer, you can also choose two big and one small equipment. According to the needs of the new boiler room, you can choose more equipment than three, but it should not be too much. Instead of using many equipment, choose a higher capacity equipment. In the current situation of domestic equipment quality, it is necessary to consider standby units.
