Durable Boiler Economizer Tubes For High Temp Flue Gas

Durable Boiler Economizer Tubes For High Temp Flue Gas

What is the core function of an economizer?

Recover waste heat from flue gas to preheat feedwater, improving efficiency by 5-10%.

Product Description

Boiler economizers, as finned - tube - based heat exchange devices, serve to heat a liquid (water in many instances). Notably, the heating process typically stops short of making the liquid reach its boiling point. Our manufacturing capabilities cover three distinct boiler economizer types: the bare - tube economizer, the H - finned tube economizer, and the spiral finned - tube economizer. The H - finned tube economizer, a highly efficient heat - exchanging unit, is constructed from H - finned tubes.

Specifications

Technical specifications

Material Structure
Consists of a serious of spiral fin tubes, the headers of inlet and outlet, bend, frame and other auxiliaries.
Structure Arrangement
In line / staggered arrangement.

Function

(1) System Integration & Thermal Synergy

The economizer operates as a critical auxiliary component within steam generation systems, working in tandem with boilers. Upon exiting the engine cylinders via exhaust valves, high-temperature exhaust gases are first directed into the boiler. Here, they transfer thermal energy to water, initiating primary steam production—a foundational step in energy conversion.

(2) Residual Heat Recovery

Following their passage through the boiler, exhaust gases flow into the economizer. Leveraging advanced heat exchange mechanisms, the economizer captures residual thermal energy from these gases, heating feedwater before it enters the boiler. This dual-stage heat utilization not only enhances steam generation efficiency but also reduces the boiler's primary energy demand, optimizing fuel consumption.

(3) Efficiency Enhancement Dynamics

At its core, the economizer serves as a waste heat recovery system, repurposing thermal energy that would otherwise be lost to the environment. By preheating boiler feedwater—its primary function in most applications—the economizer achieves two key objectives:

Variety

Utility Boiler Economizer

Package Boiler Economizer

Manufacturing and acceptance criteria

*Note:HD BOILER can bespoke special type of economizer according to customer's requirement.

HRSG Economizer

Internal heat exchangers

1.Subcooling may also be produced by superheating the gas leaving the evaporator and heading to the gas compressor.

2.These systems withdraw heat from the liquid line but heat up the gas compressors suction.

3.This is a very common solution to insure that gas reaches the compressor and liquid reaches the valve.

4.It also allows maximum heat exchanger use as minimizes the portion of the heat exchangers used to change the temperature of the fluid,and maximizeds the volume in which the refrigerant changes its phase.

SuZhou Saneco boiler co.ltd is a high-tech enterprise specialized in producing of boiler spare parts, such as fin tubes, economizers, super-heater and re-heater, boiler water wall panels, boiler manifold headers, and boiler steam drums for industrial boilers. Company also provide turnkey service for our customers from design, manufacturing, installation to maintenance.

The Company covers an area of 200,000 square meters of plant area and has fixed assets of 260 million yuan. The Company has more than 260 employees, including more than 52 engineering and technical personnel, more than 150 qualified welders and 30 professional inspectors (including NDT RT-III personnel).