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  4. Duct burner Cogeneration gas burner GDB type General purpose/medium pressure supply type (Sunray Refrigeration Co., Ltd.)
Duct burner Cogeneration gas burner GDB type General purpose/medium pressure supply type-GDB-10
Duct burner Cogeneration gas burner GDB type General purpose/medium pressure supply type-Sunray Refrigeration Co., Ltd.

Duct burner Cogeneration gas burner GDB type General purpose/medium pressure supply type
Sunray Refrigeration Co., Ltd.

About This Product

The GDB type gas burner is a rectangular duct insertion type burner that enables stable combustion with a short flame even at low oxygen concentrations. This burner is ideal for reheating cogeneration boilers.

■Product description

A cogeneration gas burner is a duct burner used when the demand for steam exceeds its available heat capacity. A cogeneration gas burner is installed in the exhaust path of a gas turbine and aims to increase steam generation capacity by completely combusting the reheating gas using residual oxygen in the turbine exhaust gas (TEG) and heating the exhaust gas. This improves boiler efficiency and dramatically increases the overall efficiency of the entire system. Additionally, if steam is required when the gas turbine is stopped, it can also be used for combustion with fresh air. The Sunray GDB type cogeneration gas burner is composed of a combination of small burner units in order to equalize humidity. The design allows for flexible adjustment of dimensions, combustion amount, etc. according to system specifications, and a turndown ratio of 1:10 is possible, making it possible to operate the burner without turning it on and off. You can. Maximum combustion capacity is 581kW per unit. It is an economical energy-saving system for waste heat recovery because it can be installed compactly in a duct and can be combusted with a low turbine exhaust gas pressure difference (0.2kPa).

■Low NOx combustion

・60ppm or less (O2: 0% conversion) ・Turbine exhaust gas (TEG) 500℃, oxygen concentration 15% (Wet)

■Stable combustion

- Stable combustion occurs even when the oxygen concentration of turbine exhaust gas is 13% or more. -Easy to apply to installations under various conditions.

■Short flame combustion

・Flame length 1.7m or less ・581kW

■Large turndown

・1:10 ・Not turning on and off is a big advantage in terms of efficiency and safety.

■Can burn with low wind pressure difference

・⊿P=0.2kPa (Gas differential pressure 14.7kPa) ・The cost of the blower is low.

■Wide range of combustion capacity

・1,163kW～29,070kW - A wide range of combustion amounts can be achieved by combining burner units.

■Space saving

A unitized valve station (fuel gas supply line) and combustion safety device are integrated to save space.

■Applications

Waste heat boiler refiring (cogeneration), incinerator (incinerator), hot air generator, deodorizing device, exhaust gas treatment device

  • Product

    Duct burner Cogeneration gas burner GDB type General purpose/medium pressure supply type

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1 Models of Duct burner Cogeneration gas burner GDB type General purpose/medium pressure supply type

Image Part Number Price (excluding tax) Combustion chamber length (flame length) m Fuel gas supply pressure Fuel Fire mouth differential pressure air kPa Fire mouth differential pressure gas kPa Material Maximum combustion amount kW Maximum combustion amount (10^4Kcal/H) Dimensions (1 unit) Rated combustion amount (1 unit) Burner outlet/exhaust gas temperature Combustion amount per duct cross-sectional area Turndown (aperture) ratio Turbine exhaust gas temperature Turbine exhaust gas residual oxygen concentration Turbine exhaust gas differential pressure Turbine exhaust gas duct flow velocity
Duct burner Cogeneration gas burner GDB type General purpose/medium pressure supply type-Part Number-GDB-10

GDB-10

Available upon quote

2
*2 Combustion chamber dimensions are reference values.

98kPa

City gas (LNG) *1
*1 Mixed combustion with gas fuels other than city gas (such as biogas) is also possible.

0.3

Twenty three

SUS304 (main part SUS310S)

1,163

100

160W×280H mm

291~581kW

800~1,000℃

349~2,093kW/m2

1:10

350~600℃ (at burner inlet)

13~16% (Wet)

0.2kPa

10~20m/s

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Sunray Refrigeration Co., Ltd.

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