On 2018-08-08 14:48:54
Regenerative gas reheating furnace principle
The principle of environmental protection regenerative gas reheating furnace has the advantages of simple equipment, stable combustion, high calorific value, easy to control and little pollution, etc.
The equipment has the advantages of simple equipment, stable combustion, high calorific value, easy to control and little pollution. Regenerative gas reheating furnace can reduce nitrogen oxide emissions, high heat efficiency, energy saving, reduce the size of equipment and other advantages. The principle of regenerative gas reheating furnace is mainly as follows:
According to the distribution of temperature, velocity and concentration in the furnace during the actual production and processing of natural gas regenerative reheating furnace. Data analysis of jet relative velocity, preheating temperature and included Angle of regenerative gas heating furnace at different processing temperatures. In general, the relative velocities of natural gas and air jets are smaller. The larger the high temperature area in the regenerative gas heating furnace, the higher the average temperature in the furnace and the better the temperature uniformity. When the combustion air preheating temperature is constant, only increase the preheating temperature of natural gas, high temperature of the furnace and the average temperature will rise, when natural gas and air preheating temperature is constant, change the Angle can change the temperature inside the regenerative heating furnace of gas distribution, the average high temperature inside the furnace and the exit temperature almost linearly decreased, average temperature in the furnace into a quadratic curve first increases and then decreases, and the high temperature in the hearth near the nozzle.
A natural environmental protection in the actual production conditions according to natural gas forging furnace, under normal circumstances, the regenerative heating furnace of gas when the other parameters of jet must increase the nozzle spacing, natural gas and air is more likely to spread to the whole combustion chamber of a stove or furnace, accordingly regenerative heating furnace of gas temperature in the hearth is even, but if the gap is too big, jet deflection is larger and the form larger vortex inside the furnace, uneven distribution of flow velocity, the average temperature decrease; On the premise of constant nozzle spacing, air and natural gas jet velocity, jet direction and temperature, changing the installation height of the burner has little influence on the high temperature, average temperature and concentration of flue gas components in the furnace, but has a great influence on the temperature distribution on the surface of the heated billet.