As is known to all, steam boiler drum is one of the main parts of a boiler. The functions are mainly as follows:
(1) Steam boiler drum is connected with drop pipe and water cooling wall to form a natural circulation loop. At the same time, the steam boiler drum receives feedwater from the economizer and delivers saturated steam to the superheater. Therefore, it is the boiler heating, evaporation, overheating of the three processes of the junction hub.
(2) Steam boiler drum has a certain amount of water, so there is a certain energy storage capacity. When the working condition of the steam boiler changes, it can slow down the speed of steam pressure change, which is beneficial to the operation regulation, so as to improve the safety of the boiler operation.
(3) Boiler drum is equipped with a variety of equipment, can ensure the quality of steam. Such as steam boiler steam drum in the separation device, can separate the steam water droplets containing salt; The cleaning device in it can remove dissolved salt in steam; The continuous blowdown device in boiler drum can reduce the salt content of boiler water. The dosing device of boiler drum can treat the water inside the boiler, so as to improve the quality of steam.
At the same time, the drum accepts the circulation feed water pump, as well as to superheater conveying saturated steam, or direct output steam, therefore, the drum is the working medium heating, evaporation, superheat three processes of the junction hub, to ensure the normal water cycle of the boiler.
The drum has a certain amount of water, has a certain heat storage capacity, in the boiler working condition changes, can slow down the speed of steam pressure change, play the role of stabilizing steam pressure. The drum is equipped with pressure gauge, water level gauge, emergency water discharge, safety valve and other equipment to ensure the safe operation of the boiler. In conclusion, the drum is a balanced vessel that provides the pressure required for the flow of the water-cooled wall soda mixture.
Working principle and working process of drum:
The higher flow rate of the soda mixture, through the inlet tube tangential into the simplified and produce rotation motion, under the action of centrifugal force, the water droplets will be thrown to the cylinder wall, so that the soda initial separation.
The separated water flows through the guide vanes around the simple bottom into the drum water volume. Saturated steam within the simplified flow upward and into the hat of twists and turns in the corrugated plate clearance flow, under the action of centrifugal force and inertia force, small water droplets fall to the corrugated plate, under the effect of adhesion formation water film dirty, by Jane wall into the steam drum water capacity, make soda further separation, and saturated steam drum steam space is introduced from the hat around or above.
Above is the role of boiler drum, if you want to know more about boiler drum knowledge, welcome to consult online customer service.
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