Flameless Combustion Compact Arrangement Horizontal Internal Combustion Fire Tube Hot Water Boiler

Abstract

The invention relates to a flameless combustion compactly-arranged horizontal type internal combustion fire tube hot water boiler, which comprises a boiler shell (2), a boiler furnace, a combustor (1), a smoke box (5), a flue convection bank (6) and a boiler flue gas outlet (7), wherein the combustor (1) is a flameless combustor; the boiler furnace comprises a primary return boiler furnace (3) and a secondary return boiler furnace (4); the primary return boiler furnace (3), the secondary return boiler furnace (4) and the flue convection bank (6) are all arranged in the boiler shell (2); the smoke box (5) is on the front part of the boiler shell (2); the boiler flue gas outlet (7) is formed on the back part of the boiler shell (2); the two ends of the secondary return boiler furnace (4) are communicated with the primary return boiler furnace (3) and the smoke box (5) respectively; the flue convection bank (6) is arranged below the secondary return boiler furnace (4); and the two ends of the flue convection bank (6) are communicated with the smoke box (5) and the boiler flue gas outlet (7) respectively. The boiler has the advantages of high combustion efficiency, small floor area, long heating surface service life, and effective control on NOX and CO emission.

Description

Technical field [0001] The invention relates to a horizontal internal combustion fire tube hot water boiler. It belongs to the technical field of heating equipment. Background technique [0002] In order to meet the requirements of the sustainable development of the national economy and environmental protection, coal-based fuels have been gradually changed to oil and gas-based fuels. Oil and gas-type fuels are easy to transport and use. Under ensuring good combustion conditions, they basically do not produce environmental pollution and have high calorific value. This makes oil and gas boilers realize automatic operation and high efficiency. In recent years, fuel and gas boilers have been widely developed and applied due to their small size, high degree of automation, easy installation, and very convenient and flexible applications under various heat media. The horizontal internal combustion fire tube water heater basically uses oil and gas as fuel, and due to the compact layout...

AI Technical Summary

Problems solved by technology

[0004] my country's horizontal internal combustion fire tube hot water boilers generally have some problems. For example, the tube sheet connected to the smoke pipe in the combustion chamber is poor in working environment, causing the tube sheet to crack easily. The local heat load is too large, causing the smoke pipe to burn out easily. The temperature is too high, resulting in NO X Due to the phenomenon of rising emissions, and because the "Boiler Regulations" and related regulations have upper limit requirements on the specifications of the furnace and backfire chamber of horizontal internal combustion fire tube boilers, the traditional horizontal internal combustion fire tube hot water boilers on the market now The power is difficult to break through 14MW

Images