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2023 Annual Conference on Experience Exchange of Wear and Explosion Prevention Technology for Boilers in Thermal Power Plants
On November 8th, our company participated in the Operation and Maintenance Branch of the China Electric Power Technology Market Association and held the 2023 Annual Conference on Experience Exchange of Boiler Wear and Explosion Prevention Technology in Thermal Power Plants in Zhengzhou. We introduced the application of our silicon carbide burner nozzles, silicon carbide burner primary air ducts, swirl burners, silicon carbide wear-resistant elbows and other products in thermal power generation.
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2023
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The 9th Petrochemical Equipment Operation and Maintenance Management and Maintenance Technology Conference in 2023
On October 25th, our company participated in the 9th Petrochemical Equipment Operation and Maintenance Management and Maintenance Technology Conference held in Xiamen in 2023, introducing wear-resistant and corrosion-resistant silicon carbide products and promoting their application in petrochemical systems.
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Discussion on Burner Silicon Carbide Nozzle
The main function of the burner silicon carbide nozzle is to spray the pulverized coal air mixture (primary air) supplied by the pulverized coal preparation system and the secondary air required for combustion into the furnace at a certain concentration and speed, respectively, to achieve stable ignition and combustion in the suspended state.
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Silicon Carbide Nozzle
The burner nozzle generally adopts the structure of cast steel, and the proper swing of the burner nozzle can change the position of the flame center to adjust the temperature level of reheat steam; the dense and lean pulverized coal burner can prevent coking and high-temperature corrosion in the furnace, and has stable ignition and good low-load stability.
On the secondary reheat boiler
The secondary reheat power generation technology is the key technology of the "National Energy Technology" Twelfth Five-Year Plan ". It has a driving effect on leading the progress of power generation technology and improving the level of my country's power manufacturing industry. It represents the current world's leading power generation technology and has high efficiency, Low energy consumption, low emissions and other advantages. It is estimated that the thermal efficiency of the secondary reheat unit is about 2% higher than that of the conventional primary reheat unit, and the carbon dioxide emission reduction is about 3.6. In the secondary reheat system of Suqian Power Plant, the secondary reheat silicon carbide inner liner of the upper spring instrument is used, which has good effect and improved efficiency.
Defects of Cast Steel Nozzle
The defects of cast steel nozzles mainly include the following aspects. 1. The cast steel nozzle is not wear-resistant, corrosion-resistant, not high temperature resistant, short service life. Need to stop furnace replacement, resulting in great economic losses. 2. The cast steel nozzle is easy to be damaged during the operation of the unit, and the blunt body of the nozzle often falls off, which threatens the operation of the burner and the safe operation of the slag fishing machine.