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Low-nitrogen fuel gas module boiler heating device and method

A heating device and gas technology, applied in the direction of air heaters, fluid heaters, lighting and heating equipment, etc., to achieve the effect of improving load regulation ratio, increasing flue gas dew point, and strong adaptability

Pending Publication Date: 2021-12-14
SHANDONG JIANZHU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Metal fiber burners are subject to certain limitations

Method used

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  • Low-nitrogen fuel gas module boiler heating device and method
  • Low-nitrogen fuel gas module boiler heating device and method
  • Low-nitrogen fuel gas module boiler heating device and method

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Embodiment Construction

[0046] A specific embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiment.

[0047] Such as Figure 1-Figure 9 As shown, the present invention includes a burner 1, a fire spreader 2, a mixer 3, an air pipe 4, a gas pipe 5, a heat exchanger 6, a control device 7 and a gas valve 8, and the gas valve 8 includes a switch valve 81, a proportional valve 82. Main valve 83 and auxiliary valve 84. The gas pipe 5 includes a main combustion pipe 51 and an auxiliary combustion pipe 52. One end of the main combustion pipe 51 is connected to the main valve 83, and the other end of the main combustion pipe 51 is connected to the main valve 83. The main nozzle 31 is connected, one end of the auxiliary combustion pipe 52 is connected with the auxiliary valve 84, the other end of the auxiliary combustion pipe 52 is ...

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Abstract

The invention discloses a low-nitrogen fuel gas module boiler heating device and method. The device comprises a burner, a fire transfer rod, a mixer, an air pipe, a fuel gas pipe, a heat exchanger, a controller and a fuel gas valve, and is characterized in that the burner comprises a panel, a splitter plate, a distribution plate, a shell, a main gas cavity and an auxiliary gas cavity; and the panel, the splitter plate, the distribution plate and the shell are sequentially combined to form the burner, the mixer comprises a main nozzle, an auxiliary nozzle and a branch gas channel, and the fuel gas valve comprises a switch valve, a proportional valve, a main valve and an auxiliary valve. The invention relates to the field of module fuel gas boilers, in particular to the low-nitrogen fuel gas module boiler heating device and method. According to the low-nitrogen fuel gas module boiler heating device and method, the high load regulation ratio, low nitrogen, the constant air-fuel ratio and safe operation of a fuel gas boiler are conveniently achieved.

Description

technical field [0001] The invention relates to the field of modular gas-fired boilers, in particular to a heating device and method for a low-nitrogen gas-fired modular boiler. Background technique [0002] Gas-fired condensing modular boilers generally use fully premixed metal fiber burners, and the flue gas condenses to absorb part of the nitrogen oxides in the flue gas, which can achieve low-nitrogen and high-efficiency combustion. Because the air contains impurities, it is necessary to install an air filter to filter the dust, resulting in a different pressure drop, which in turn changes the relationship between air pressure and flow, resulting in an imbalance in the air-fuel ratio. At the same time, the fine dust containing different components is filtered to the surface of the metal fiber, which destroys the metal properties of the metal fiber and is easy to burn, resulting in uneven flow and burn through. [0003] The gas source is different and the natural gas will...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H8/00F24H9/00F24H9/18F24H9/20
CPCF24H8/00F24H9/1836F24H9/2035F24H9/0005Y02B30/00
Inventor 崔永章刘伟张莉莉刘一鸣
Owner SHANDONG JIANZHU UNIV