| OCR Text |
Show As the result of the actual measurement of the influence of furnace wall, furnace floor and fire bridge on test furnaces with straight flame and flat flame, almost no influence of furnace wall to of furnace floor was seen with long straight flame but the influence of fire bridge was detected within 1000 mm from the burner top at the combustion of 45 * 10**Kcal/h. The test furnace is shown in Fig.87 and the influence of the fire bridge is indicated in Fig.88. Fig.87 Structural drawing of test furnace Sampling Furnace temp.measuring point 1(thermocouple) L:Distance between burner top and fire bridge W:Distance between burner and furnace wall (side) H:Height of burner from furnace floor With flat flame, almost no influence of fire bridge was seen but the influence of furnace wall and furnace floor was detected as shown in Fig.89. Fig.88 Influence by fire bridge of straight flame burner s J?800 x o z ,a)No fire frick (a)L=lQQQ H=O0 450xl0'*Kca_l/h 0l-=U,-'l..U 900 1000 1100 1200 Furnace temperature Fig.89 Influence of furnace wall and floor with^flat flame-burner 5 0 ^ i x o z 800 900 1000 1100 1200 Furnace temperarure 9 - 82 - |
