[WRT] Wide Range Radiant Tube Burner

Catalog

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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WRT-100 Shape dimension CAD
WRT-125 Shape dimension CAD
WRT-150 Shape dimension CAD

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

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