The thermal insulation material used on the steam pipeline of a power plant is generally aerogel. This is because aerogel has a very low thermal conductivity and excellent thermal insulation performance, which can effectively reduce the heat transfer loss of the pipeline and improve the energy utilization efficiency. In addition, aerogel also has the characteristics of light weight, softness and easy processing, which can adapt to the complex pipe shape and installation requirements. Therefore, the choice of aerogel as the thermal insulation material is to achieve the thermal energy saving and safe operation of the pipeline. In addition, there are other thermal insulation materials, such as rock wool, silicate fibers, etc., which are also widely used in the thermal insulation engineering of steam pipelines under different circumstances.

What is the function of the steam drum?

The steam drum (also known as the drum) is the most important pressure element in the natural circulation boiler. The main functions of the steam drum are:

1: It is the connection hub of the three processes of heating, evaporation and overheating of the working medium to ensure the normal water circulation of the boiler.

2: There is a steam-water separation device and a continuous sewage discharge device inside to ensure the quality of the boiler steam.

3: There is a certain amount of water, with a certain heat storage capacity, to ease the speed of change of steam pressure.

4: There are pressure gauges, water level gauges, accident water discharge, safety valves and other equipment on the steam drum to ensure the safe operation of the boiler.

Can drinks be used in the heating bag?

Yes, the heating principle of the heating bag is actually very simple. The calcium oxide (also known as quicklime) in the heating bag will form a chemical reaction in contact with water and convert it into calcium hydroxide (also known as slaked lime), releasing heat energy and generating water vapor, thereby cooking food. Firefighters remind consumers that when eating and using the “self-heating pot”, they must be standardized, especially in the process of using the heating bag, and the damaged heating bag should not be used again.