Working process of electric steam generator

Working process of electric steam generator

The electric steam generator is mainly composed of a water supply system, an automatic control system, a furnace and a heating system, and a safety protection system. Its basic working principle is: through an automatic control device to ensure that the liquid controller or high, medium and low electrode probes feedback control the opening and closing of the water pump during operation, the length of water supply, and the heating time of the furnace; The set high temperature of zui with the continuous output of steam, the water level of the furnace is continuously decreasing. When it is in the low water level (mechanical type) and the middle water level (electronic type), the water pump automatically replenishes the water. When the water level is high, the water pump stops the water supply; At the same time, the electric heating tube in the furnace continues to heat, the steam generator source continuously generates steam, and the pointer pressure gauge on the upper part of the panel or the top part instantly displays the steam pressure value, and the whole process can be automatically displayed by the indicator light.

The electric steam generator refers to the flow mode of water vapor in the boiler evaporation system, which can be divided into natural circulation, auxiliary circulation, direct current and composite circulation.

In terms of combustion and flue gas systems, the blower sends air to the air preheater to a certain temperature. The pulverized coal that has been ground to a certain degree in the coal mill is carried by the hot air from the air preheater through the burner into the furnace. The pulverized coal and air mixture sprayed from the burner is mixed with the rest of the hot air in the furnace, and the electric steam generator emits a large amount of heat. The hot flue gas after combustion flows through the furnace, the condensate tube bundle, the superheater, the economizer and the air preheater, and then passes through the dust removal device to remove the fly ash. After the Zui is sent to the chimney by the induced draft fan to the atmosphere. .

The nitrogen oxides in the flue gas are mainly nitric oxide. Flue gas denitration has catalytic decomposition method, selective catalytic reduction method, and high temperature activated carbon absorption denitration.

In operation, coal-fired boilers must discharge a large amount of slag and fly ash collected by the dust collector, which is generally removed by water or mechanical means to the slag yard.

The electric steam generator is for food cooking processing, printing and dyeing, pharmaceutical, garment ironing, road construction and maintenance, providing production steam, medical institutions providing disinfecting steam, and providing domestic hot water for other enterprises, hotels, and bathrooms through water tank heating. Washing and ironing industry: dry cleaning machine, dryer, washing machine, dewatering machine, ironing machine, iron, and other equipment. Food machinery industry: supporting equipment for tofu machine, steamer, sterilization tank, packaging machine, coating equipment, sealing machine, etc. Biochemical industry: Fermentation tank, reaction kettle, sandwich pot, mixer, emulsifier and other equipment Other industries: (oil field, automobile) steam cleaning industry, (hotel, dormitory, school, mixing station) hot water supply, (bridge, railway) concrete maintenance, (leisure beauty club) sauna bath, electric steam generator heat exchange equipment, etc. .