Install the drum. The upper drum of the boiler has the function of retaining a certain amount of water and maintaining a certain water level in the boiler, while the function of the lower drum is to form a circulation loop with the upper drum and the convection tube bundle to deposit the water slag and discharge it regularly, which has no holding capacity, so the boiler sampler water is on the drum. When a boiler has two drums, the drum above is called the upper drum, and the drum below is called the lower drum. Twin drum boilers are water tube boilers with many convection tubes connected together, including steam boilers and hot water boilers.
Boilers with a nominal evaporation capacity greater than or equal to 1 t/h must be equipped with a device for sampling theboiler water.
This is a requirement of the “Regulations on Technical Supervision of Safety of Steam Boilers”.
Article 182. Boilers with a nominal evaporation capacity greater than or equal to 1 t/h must be equipped with a boiler water sampling device. Where there are steam quality requirements, a steam sampling device must also be provided. The location of the sampling device and sampling points must ensure that the water and steam samples collected are representative.