Characteristics
This is a radiant tube burner having a large turn-down ratio (max. 1:40). This radiant tube burner is composed mainly of a main burner and a coaxial sub-burner. For the initial ignition, direct ignition featured by low-fire start is adopted. The main burner is ignited, then the sub-burner is ignited by the main burner flame, and then the sub-burner maintains constant combustion. For high-temperature applications, a heat exchanger can be installed to further energy saving.
Specifications / Shape dimension
Specifications
Fuel |
Fuel Gases |
Standard Pressure |
Gas:2~10kPa
Air:6kPa |
Flame Safeguard System |
UV Phototube |
Type |
Capacity kW (×1,000kcal/h) |
Tube |
Connection |
Main Burner |
Sub Burner |
Main Air |
Main Gas |
Sub Air |
Sub Gas |
WRT-100 |
35(30) |
2.3(2.0) |
100A |
Rc 1 1/2 |
Rc 1/2 |
Rc 3/8 |
Rc 1/4 |
WRT-125 |
58(50) |
125A |
Rc 2 |
Rc 3/4 |
WRT-150 |
93(80) |
150A |
Rc 2 1/2 |
Rc 1 |
Dimension
Type |
A |
B |
C |
D |
E |
F |
G |
H |
J |
K |
L |
M |
N |
WRT-100 |
116 |
100 |
55 |
38 |
127 |
20 |
30 |
55 |
149 |
80 |
165 |
250~450(STEP50) |
436 |
WRT-125 |
90 |
40 |
169 |
100 |
200 |
410 |
WRT-150 |
150 |
138 |
72 |
53 |
179 |
125 |
230 |
525 |
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Flow sheet
Technical data
Condition |
Burner |
WRT-100 |
Recuperator |
RL-100 |
Air temperature |
330℃ |
Excess Air Ratio |
1.2 |
Furnace temperature |
950℃ |
Capacity |
Tube temperature(℃)
|
Difference of Tube Maximum temperature(℃)
|
(kW ) |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
40 |
1,030 |
995 |
1,020 |
1,000 |
985 |
935 |
965 |
95 |
20 |
1,035 |
1,005 |
1,015 |
995 |
990 |
960 |
975 |
75 |
8 |
960 |
940 |
950 |
935 |
935 |
915 |
930 |
45 |