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Shandong Beichen Clean Energy Service System: Gas Boiler Flue Gas Waste Heat Utilization

Release time:

2022-12-27

How to improve the use efficiency of gas-fired boilers in winter? How to greatly improve the utilization rate of waste heat recovery? At present, in the process of gas-fired boilers, there is a situation that flue gas carries a large amount of particulate matter and waste heat to form "smoke plume" emissions, which affects environmental protection and also causes low thermal efficiency of boilers. In response to this problem, Shandong Beichen Electromechanical research and development of "flue gas waste heat deep recovery" technology, to the company this year's general contracting construction of Xinjiang 12 division clean energy heating capacity improvement project as an example:

The project is a deep recovery project for flue gas waste heat of gas boilers. Four 46MW gas boilers are modified. It consists of heat pump units, heat exchange and condensate recovery systems, and internal and external network circulation systems. The process of "heat pump units + flue gas heat exchanger" is adopted. Natural gas is used to drive absorption heat pumps to recover flue gas heat and heat the primary return water of boilers to improve gas utilization efficiency.

The recovery project recovers a total of 17.16MW of flue gas waste heat, increases the heating area by 300000 ㎡, saves 29600 tons of standard coal annually, reduces carbon dioxide emissions by 74000 tons annually, reduces sulfur dioxide emissions by 2200 tons annually, and reduces nitrogen oxide emissions by 1100 tons annually.