Why does the steam generator not need to be inspected?

To a large extent, a steam generator is a device that absorbs the heat energy of fuel combustion and turns water into steam with corresponding parameters. The steam generator is generally divided into two parts: a pot and a furnace. The pot is used to hold water. The metal container and its furnace are the parts where the fuel burns. The water in the pot absorbs the heat of the fuel burning in the furnace body and turns into steam. The basic principle is the same as that of boiling water. The pot is equivalent to the kettle, and the furnace is equivalent to the stove.
Steam generator is a kind of energy conversion equipment. It is a new energy-saving and environmentally friendly thermal equipment that replaces traditional steam boilers. Compared with steam boilers, steam generators do not need to be reported for installation and inspection, are not special equipment, and are low-nitrogen and environmentally friendly in line with national environmental protection policies. The key is to save gas, worry and money, and produce steam in 1-3 minutes. The working principle of the steam generator is that other energy heats the water in the steam generator body to produce hot water or steam. The other energy here refers to steam. The fuel and energy of the generator are, for example, gas combustion (natural gas, liquefied petroleum gas, Lng), etc. This combustion is the required energy.

The job of the steam generator is to heat the feed water through the heat release of fuel combustion or the heat transfer between high-temperature flue gas and the heating surface, which will eventually turn the water into qualified superheated steam with strong parameters and quality. The steam generator must go through three stages of preheating, evaporation and superheating before it can become superheated steam.

Explanation on “TSG G0001-2012 Boiler Safety Technical Supervision Regulations” for steam generators
Dear users, hello! Regarding whether a boiler usage certificate is required when using the boiler, whether annual inspection is required, and whether operators need to hold a certificate to work? Our company explains this issue as follows:

According to the general provisions of “TSG G0001-2012 Boiler Safety Technical Supervision Regulations”: 1.3, the excerpt is as follows:
Not applicable:
This regulation does not apply to the following equipment:
(1) Design a steam boiler with normal water level and water volume less than 30L.
(2) Hot water boilers with rated outlet water pressure less than 0.1Mpa or rated thermal power less than 0.1MW.

1.4 .4 Class D boiler
(1) The steam boiler P≤0.8Mpa, and the normal water level and water volume are 30L≤V≤50L;
(2) Steam and water dual-purpose boiler, P≤0.04Mpa, and evaporation capacity D≤0.5t/h

13.6 Use of Class D Boilers
(1) Steam and water dual-purpose boilers must be registered for use in accordance with regulations, and other boilers do not need to be registered for use.
Therefore, the steam generator can be installed and used without inspection.