Boiler water level control. Structure and parameters of water level controller

1, the boiler water level generally refers to the air bag water level, and the water level transmitter outputs 4-20ma current, with 4ma as zero water level and 20ma as the highest water level.

2. The water level controller refers to the mechanical or electronic control of high and low water levels, which can control solenoid valves, pumps, etc. Become an automatic water level controller or water level alarm, so as to realize semi-automatic or full-automatic.

3. The boiler is an energy conversion device. The energy input to the boiler includes chemical energy and electric energy in fuel, and the boiler outputs steam, high-temperature water or organic heat carrier with certain heat energy. The original meaning of a pot refers to a container for holding water heated on a fire, and a furnace refers to a place where fuel burns. A boiler consists of two parts: a pot and a stove. The hot water or steam generated in the boiler can directly provide the heat energy needed by industrial production and people's life, and can also be converted into mechanical energy by steam power devices or converted into electrical energy by generators. Boilers that provide hot water are called hot water boilers, which are mainly used in life and have a small number of applications in industrial production. Boilers that generate steam are called steam boilers, usually referred to as boilers for short, and are mostly used in thermal power plants, ships, locomotives and industrial and mining enterprises.