OCR Text |
Show FTX is a forward flow 3 path fire tube boiler (center fire tube, dry back) developed in 1960, and the thermal load on the combustion chamber is approximately 80 x 101* Kcal/m3h. This boiler is quite suitable for XB burner. Fig. 50 shows NOx date of FTX 20 boiler provided with XB burner, which ensures 3 0 ppm of NOx value of O2=0% conversion at the improvement from heavy oil combustion to city gas combustion. FTU is the forward flow 3 path fire tube boiler (center fire tube) developed for 100 Kg/m3h of evaporation on heat conducting surface in 1965 arid the thermal load on the combustion chamber is around 100 x 10** Kcal/m3h. Fig. 49 Example of structure of FT fire tube type boilers 8 - 48- |