Steam generators and steam boilers differ significantly in definition and regulation, steam production speed, thermal efficiency, and safety.
Definition and Regulatory Requirements
A steam generator is a mechanical device that uses fuel or other energy sources to heat water into steam. According to the Regulations on Safety Supervision of Special Equipment, steam generators with a water capacity below 30L do not require filing or annual inspection and are outside the scope of boiler supervision. A traditional steam boiler generates steam by heating stored water in an inner vessel and is classified as special equipment subject to strict supervision.
Steam Production Speed
A traditional boiler must heat stored water to the boiling point, which takes about 30 minutes for small water capacities and 1–2 hours for large ones. In contrast, a new-type steam generator directly heats cold water inside specially designed steel pipes, causing instantaneous vaporization. Steam flows continuously forward with almost no water retained in the piping, and steam can be produced within about 5 seconds. For these specially designed steel pipes and evaporation tube bundles, Hansheng Automation can provide custom machining based on customer drawings to meet different capacity and connection requirements.
Thermal Efficiency
Traditional coal-fired boilers generally have a thermal efficiency of around 70% or even lower. Due to serious environmental pollution, they have been banned in many places and are being phased out. New-type steam generators can achieve a thermal efficiency of up to 100.35%, with more complete combustion and higher fuel utilization, resulting in better energy savings.
Safety
In a traditional boiler, water is stored and boiled in a closed vessel. When internal pressure exceeds the critical value, an explosion can occur, and the risk is always present. If a steam boiler explodes, every 100 kg of water releases energy equivalent to about 1 kg of TNT. A new-type steam generator eliminates the conditions for explosion through its structural principle, so there is no explosion hazard. It also uses chip-based intelligent control that automatically activates protection programs when water, electricity, or gas supply is interrupted, offering higher safety. During maintenance or replacement of control-related components and piping connections, Hansheng Automation can also support non-standard precision machining according to customer specifications.
Overall, new-type steam generators are clearly superior to traditional boilers in terms of inspection exemption, safety, and steam production speed. As more enterprises choose new-type steam generators, the demand for compatible non-standard parts and customized components continues to grow. Hansheng Automation is able to provide drawing-based precision machining services, helping users maintain equipment reliability and operational efficiency.
