What is an economizer? it is a kind of heat exchange equipment specially designed to improve boiler energy utilization efficiency. It is usually installed in the flue at the tail of the boiler, and its main function is to recover the waste heat in the flue gas during the operation of the boiler, improve the overall energy efficiency of the boiler system, and thus achieve the purpose of energy saving and emission reduction.
The boiler economizer passes through the economizer to transfer the heat in the high-temperature flue gas to the boiler feed water through the internal heat exchange device to realize the preheating of the feed water. The preheated boiler feed water temperature is close to the required working temperature of the boiler, which greatly reduces the fuel consumption required by the boiler when heating the water to the required temperature, thus effectively improving the thermal efficiency, reducing the operating cost, and significantly reducing the energy waste and pollutant emission in flue gas emission. The application of economizer can not only save energy and reduce the production cost of enterprises but also help to achieve the goals of energy saving, emission reduction and environmental protection, and it is an indispensable part of modern boiler system.
Working Principle of Boiler Economizer
The working principle of boiler economizer can be embodied in three aspects: Heat recovery, temperature difference utilization and heat transfer mode.
Main Types of Boiler Economizer
Condensing economizer
By cooling the flue gas below its condensation temperature, the condensing economizer condenses the water vapor in the flue gas, thus releasing latent heat. This released latent heat is further utilized to heat boiler feed water or other process water, thus improving the overall heat recovery efficiency.
Non-condensing economizer
Non-condensing economizer only reduces the temperature of flue gas to above its dew point temperature, thus avoiding the condensation of water vapor in flue gas. In this way, the equipment can not only recover some sensible heat but also reduce the material loss and maintenance requirements caused by condensed water corrosion.
Other Types of Boiler Economizer
Shell-and-tube economizer
Shell-and-tube economizer consists of a shell and a series of heat transfer tubes inside. Flue gas usually flows in the shell, while boiler feed water flows in the pipe, and heat is transferred from flue gas to feed water through the pipe wall.
Plate economizer
The plate economizer is formed by arranging a plurality of metal plates, forming a plurality of flue gas and water flow channels, flue gas and feed water flow between the plates, and heat is transferred through the plates.
Conclusion
As an efficient heat recovery equipment, boiler economizer greatly improves the overall energy efficiency of boiler system by making full use of the waste heat in flue gas, which not only effectively reduces fuel consumption, but also significantly reduces operating costs. In industrial production, condensing economizer or non-condensing economizer can be selected according to specific application requirements, both of which have unique advantages and applicable scenarios. Choosing the size and model of economizer reasonably and ensuring high-quality installation and debugging are the key factors to realize efficient operation and prolong service life of equipment.
In design and technology, modern boiler economizer integrates many innovations, such as corrosion-resistant materials, anti-scaling structure, compact design and intelligent monitoring system, which makes it more suitable for changing industrial needs. By significantly improving boiler efficiency, economizer not only brings economic benefits to enterprises, but also plays an important role in energy saving, emission reduction and environmental protection. As an indispensable and important equipment in modern industrial boiler system, boiler economizer embodies the perfect combination of technological progress and sustainable development and helps enterprises to reach a new height on the road of energy saving and environmental protection. If you are interested in boiler system, please Contact Us. Choosing the correct boiler means choosing high quality, high efficiency and reliable service support, which will make your boiler system further on the road of energy saving and environmental protection.