Advantages of Using Steam Generator and Economiser

Advantages of Using Steam Generator and Economiser for Process

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Advantages of Using Steam Generator and Economiser for Process:

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In some processes, using a steam generator instead of a steam boiler provides fuel economy with 5-10% depending on the type of operation.
The efficiency of modern design steam generators is 90-92%. The efficiency of the steam generators installed with economizer varies between 95-98%.
Depending on the increase in efficiency, less fuel is used for the same capacity or more heat is produced for the same amount of fuel.
It is the most economical solution for businesses that want to reduce manufacturing costs due to the high fuel prices.

Economizer is used as follows with Steam Generators:

In the preheating of the feed water. Especially in some processes that do not have condensate return, as a result of the preheating of the feed water, there will be an efficiency increase of approximately 48-50%.

To meet the heat requirement of the condensate tank or deaerator.

In heating the hot water used for any purpose in the facility, (pool, tank, etc.)

In heating or heat supplement of heating system water used to heat any place in the facility.

Steam boilers are typically larger pressure vessels capable of providing energy to industrial operations. They accomplish this by boiling water at subcritical pressures with intricate fuel systems. In some jurisdictions, the high pressure and high steam output capability of steam boilers requires a fully certified and licensed operator to be on-site in order to be operated. There are two common designs for a steam boiler: firetube and watertube.

In a firetube design, a steam boiler is a pressure vessel comprised of a large shell in which the hot gases of combustion pass through one or more boiler tubes connected to the front and rear boiler sheet. The most common firetube type is the scotch marine firetube boiler, which utilizes a large furnace tube and many smaller boiler tubes. The hot gases from the combustion process pass through the tubes transferring the heat to the surrounding water. This process develops the high temperature required to boil the water and begin the steaming process.

The watertube boiler actually inverts this design. The water flows through the smaller diameter boiler tubes while the combustion gases travel around them to transfer heat to the water. The boiler tubes in the watertube design carry the heated water inside the tubes between the lower drum (mud drum) and upper drums (steam drum), with the generated steam accumulating in the upper drum. Heat is generated in the furnace area and transferred to the water through two main zones, the furnace zone and the convection zone, while the hot gases are moving across the tubes and out the exhaust.