HS (250 ℃) series burner is a compact electronic proportional regulation digital burner designed and developed for heat transfer oil furnace and hot blast furnace. It adopts a different technical route to carry out a conscious technical revolution on the burner, and enters the accurately measured gas and air (oxygen) into the heat transfer oil furnace, using the original heat transfer oil furnace chamber temperature (generally working heat transfer oil medium 200-400 ℃), And hot air temperature. The infrared heat generated by the uniform oxidation of natural gas at this temperature is absorbed by the furnace and close to the heat transfer oil pipe of the furnace. Because the heat is absorbed, the temperature in the central area is relatively low and there is a temperature difference. This creates thermal convection. Low oxygen oxidation (air) will occur in the whole furnace. There is no local high temperature area. The boiler parameters are reasonably and stably controlled to achieve t