Assembling the Dual Plasma Burner for Component Replacement with the
NCD
| The following procedure can be used to assemble the Dual Plasma Burner for | |
| use with the NCD or for replacement of Burner components, such as ceramic | |
| tubes. Refer to Figure 2 on page 27 for proper part nomenclature. Note that the | |
| lower section of the NCD Burner is identical to the lower section of the SCD | |
| Burner. | |
| While the use of 1/4" ferrules is optional with the SCD, the quartz tube used in the NCD | |
N O T E | ||
Burner is more fragile and the use of 1/4" graphite ferrules is highly recommended. | ||
| ||
|
| |
| 1 Slide the 0.066" internal diameter (I.D.) double taper ferrule onto the lower | |
| Burner tube. The tube should extend approximately 2 mm past the end of | |
| the ferrule. | |
| 2 Insert the lower Burner tube and double taper ferrule into the Burner inlet | |
| fitting. | |
| 3 Slide the 1/4" Burner adapter over the top of the lower Burner tube all the | |
| way down to the Burner inlet fitting and screw it onto the fitting | |
|
Figure 32 Ferrule Placement on Lower Burner Tube
4Slide a 1/4" Swagelok nut over the Burner adapter and then slide a 1/4" ferrule over the Burner adapter and position it into the 1/4" nut.
5Center the lower Burner tube so that it will slide into the tapered union. Insert the lower end of the tapered union fitting into the 1/4" Swagelok nut
and screw it on
6Find the quartz combustion tube, 1/4" ferrule and quartz heater assembly.
7Insert the quartz tube into the quartz heater assembly. Position a 1/4" ferrule (flat end butted up against the top of the swivel nut) onto the quartz combustion tube. With the ferrule positioned against the swivel nut, approximately 0.5 cm of the quartz tube should extend outside the nut.
Operation and Maintenance Manual | 95 |
