Does a boiler generally produce superheated steam or saturated steam?

It’s neither superheated steam nor saturated steam, I guess. The steam coming out of the boiler does not reach the temperature of superheated steam.

It’s neither superheated steam nor saturated steam; what state is it then? It can’t be supersaturated steam, either, right? I think it’s saturated steam

The steam coming out of the boiler is saturated steam; it becomes superheated steam only after passing through the superheater.

It’s not superheated steam. It is superheated steam; measurement is done using vortex flow meters or orifice plates.

If the boiler is not equipped with a superheater, the steam produced is saturated steam; saturated steam needs to be reheated in a superheater before it can become superheated steam.

What comes out of the boiler is a mixture of water and vapor; after vapor-liquid separation, saturated steam emerges from the drum. Saturated steam is reheated in a superheater to become superheated steam.

I’ve learned some knowledge; referring to what was said above, I think it’s correct

Is a water vapor mixture simply supersaturated steam?

When a liquid evaporates in a confined space, its molecules move across the surface into the space above and become vapor molecules. Due to the chaotic thermal motion of steam molecules, they collide with each other as well as with the container walls and the liquid surface. When colliding with the liquid surface, some molecules are attracted by the liquid molecules and return to the liquid, becoming part of it again. At the beginning of evaporation, more molecules enter the space than those that return to the liquid. As evaporation continues, the density of vapor molecules in the space increases, and as a result, more molecules return to the liquid. When the number of molecules entering the space per unit time is equal to the number of molecules returning to the liquid, evaporation and condensation are in dynamic equilibrium. At this point, although evaporation and condensation continue to occur, the density of vapor molecules in the space no longer increases; this state is known as a saturated state. A liquid in a saturated state is called a saturated liquid, and its corresponding vapor is saturated vapor; initially, it is wet saturated vapor, and it becomes dry saturated vapor only after all the moisture in the vapor has evaporated. During the process in which steam moves from unsaturated to wet saturated to dry saturated, its temperature does not increase; however, if heating continues after reaching dry saturation, the temperature rises and the steam becomes superheated.

The boiler evaporation produces saturated steam, but due to the high flow rate, a certain amount of water at the same temperature as the saturated steam is carried along with it.