Economizer
Advantages and Features
- Designed Based on Maximum Pressure of Boiler
- Installed in The Feed Tube Circuit of Steam Boiler
Designed Based on Maximum Pressure of Boiler
Economizer is Installed in The Feed Tube Circuit of Steam Boiler
Product Introduction
The considerable amount of heat generated losses from stack at the temperature 180-400°C. Hence, economizer can be used to heat recovery and energy saving.
This system, which is designed in different models, is a type of heat exchanger which is installed on hot exit gases from stack and spraying fluid to a boiler and preheats boiler feed water or inlet air to the flame. Daboo-Sanat offers a perfect opportunity to its customers to decrease energy consumption by 6-20% and satisfying rate of return at the least amount of time with applying this system. This system is a typical watertube heat exchanger with fins, in which tubes with multiple heat transfer passes are set parallel inside of the unpressurized body. In order to the prevention of pressure loss, some measures have been taken.
Features:
- The tube used is constructed from DIN17155-ST35.8 produced from the best companies in Europe. Furthermore, steal used in unpressurized region is DIN17155-17MN4.
- The operating pressure of an economizer is designed based on maximum admissible operation pressure of a boiler.
- The body of an economizer is insulated by ceramic fiber with 128 kg/m3.
- Economizer is installed in the feed tube circuit of steam boiler (after pump and check valve) and the temperature of feed water boiler increases by 20-25°C after going through economizer.
- The pressurized parts of an economizer are welded by SAW approach automatically which result in the high quality welding and integrity.
- Electrodes used for supplemental and penetrative welding are the type of 6010 and 7018 which are consumed according to WPS and PQR.
- All of the welders are examined based on EN287-7 test and have a welding license from high-accredited inspection centers. They are under the supervision of quality control unit of the factory.
Selected Product Images
Standards
