Air inlet device of direct-air-cooling boiler

• Main Authors: WANG LIZHI, LIU WANLI, WANG JITE, WEI JIAXIAN, QIU XIN, QI ZHIGUANG, MO FEI, ZHU JIANPING, LI FENGMAN, FENG FENG, YUAN MENG, GONG YUYANG, XIE KE
• Format: Patent
• Language: Chinese; English
• Published: 24.09.2014
• Subjects: AIR SUPPLY; BLASTING; COMBUSTION APPARATUS; COMBUSTION PROCESSES; DRAUGHT-INDUCING; FEEDING FUEL TO COMBUSTION APPARATUS; HEATING; LIGHTING; MECHANICAL ENGINEERING; SUPPLYING NON-COMBUSTIBLE LIQUID OR GAS; WEAPONS

The utility model provides an air inlet device of a direct-air-cooling boiler. The air inlet device comprises an air cooling island, a hot-air collecting device, draught fans, fan heaters, an air preheater, another draught fan, a chimney, smoke, a wind-shield wall, pipe bundles, steam distributing pipes, supports and a supporting collector. The hot-air collecting device is arranged above the air cooling island, the draught fans introduce hot air in the hot-air collecting device into the fan heaters, the hot air then enters the air preheater, and part of the warm air from the air preheater is fed into a coal mill, the other part of the warm air is directly fed into the boil as secondary air, an air inlet pipeline is connected with the air cooling island which comprises the wind-shield wall, the pipe bundles, the steam distributing pipes, the supports and the supporting collector, bottoms of the supports are welded to the steam distributing pipes, and the tops of the supports are welded to the collector. By the