Home
Service
FAQs
Boiler basics
What are the reasons for the rising temperature of boiler exhaust gas?
What are the reasons for the rising temperature of boiler exhaust gas?
29 Oct 2021
- Coking and dust accumulation on heating surface. Whether it is slagging and ash deposition on the water wall of the furnace or ash deposition on the superheater, convection tube bundle, economizer and preheater, the measured thermal resistance of flue gas will increase, and the deterioration of heat transfer will worsen the cooling effect of flue gas, resulting in an increase in the temperature of boiler waste gas.
- The excessive air coefficient. Under normal circumstances, with the increase of excess air coefficient at furnace outlet, the temperature of boiler exhaust gas increases.
- Excessive air leakage coefficient. Air leakage refers to furnace air leakage and flue air leakage, which is one of the main reasons for the temperature rise of boiler exhaust gas.
- Feed water temperature is too high. The heat transfer temperature difference between flue gas temperature and water temperature is small, which makes the temperature of boiler exhaust gas rise correspondingly.
Related FAQs
View More
Related products
View More
-
SZS series gas-fired (oil-fired) steam boilerLive Chat2-110 t/h1.25-5.3 MPa
-
WNS series gas-fired (oil-fired) steam boilerLive Chat1-20 t/h0.7-2 MPa
-
DZL series coal-fired steam boilerLive Chat2-10 t/h1-2.5 MPa
By boiler medium
By boiler structure
-
Email us
-
WhatsApp: +86 18861589035
WeChat: +86 13506150756
Live Chat
Related news
View More
-
As China advances the 14th Five-Year Plan and its long-range goals through 2035, green and low-carbon growth has become the main theme of high-quality development in manufacturing. Baijiu, a cultural emblem with a long Chinese heritage, is embracing greener production with renewed resolve. Guizhou, the heartland of sauce-aroma baijiu, is home to many renowned distilleries that are proactively responding to national calls for energy conservation, emissions reduction, and green transformation, whi...09 Sep 2025
-
As Jiangxi’s industrial upgrade accelerates, local companies increasingly need environmentally friendly energy equipment. Wuxi ZOZEN Boiler is enabling green production and efficiency gains through customized solutions and a comprehensive product matrix that includes gas-fired steam boilers, gas-fired thermal oil heaters, and biomass boilers. ZOZEN’s multi-series solutions drive green growth in Jiangxi Let’s start with gas-fired steam boilers. Jiangxi Huiyin...02 Sep 2025
-
Recently, ZOZEN Boiler successfully delivered a DZW series 20-ton reciprocating grate biomass steam boiler to Kohinoor Mills, a renowned textile enterprise in Pakistan, supporting its transition to green and sustainable production. This collaboration not only underscores ZOZEN’s growing influence in overseas markets, but also highlights its technological innovation and professional service capabilities in the biomass boiler field. ZOZEN Biomass Boiler Supports Pakistan’s T...26 Aug 2025