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Water cooled fully-areated burner

A pre-mixed combustion, water-cooled technology, applied in the direction of burner, burner, burner cooling, etc., to achieve simple processing, high combustion efficiency, and reduce thermal stress deformation

Inactive Publication Date: 2015-04-29
TIANJIN CHENGJIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This structural design is suitable for gas combustion systems where the burner works for a short time or intermittently, but not for systems that require the burner to work for a long time, such as gas heating water heaters, industrial burners

Method used

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  • Water cooled fully-areated burner
  • Water cooled fully-areated burner
  • Water cooled fully-areated burner

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Embodiment Construction

[0018] The present invention will be further described in detail below in combination with specific embodiments.

[0019] Such as figure 1 , Figure 2a , Figure 2b and 2c As shown, a water-cooled complete premix burner of the present invention includes a gas fuel distribution system, a gas fuel-air mixing system, a combustion system and a cooling system arranged from bottom to top.

[0020] The gas fuel distribution system includes a gas distribution chamber 2 connected to the gas inlet pipe 10, and the top of the gas distribution chamber 2 is provided with two rows of nozzles 12 arranged at equal intervals. In this embodiment, each row has 12 nozzles , a total of 24 nozzles. The diameter of the nozzle is 0.5-1.5mm, and the distance between two adjacent nozzles is 20-80mm; the gas distribution chamber 2 can be connected with a plurality of gas inlet pipes 10 . The gas inlet pipe 10 is connected to the gas source through the gas inlet pipe 1 .

[0021] The gas fuel-air m...

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Abstract

The invention discloses a water cooled fully-areated burner. The water cooled fully-areated burner comprises a gas fuel distributing system, a gas fuel-air mixing structure, a burning system and a cooling system. The gas fuel distributing system comprises a fuel gas inlet, a fuel gas inlet pipe, a fuel gas distributing chamber and a spray nozzle; the gas fuel-air mixing system comprises an air inlet, a gas mixing cavity and a mixed gas distributing cavity; the burning system comprises a burning flame hole plate and flame holes; the cooling system comprises a cooling water inlet, a cooling water outlet, a cooling water pipeline, fins and a U-type connecting pipe. The water cooled fully-areated burner is compact in structure, high in burning efficiency and low in emission of carbon monoxide and nitric oxide; the cooling system can take away heat of the flame hole plate through flowing of cooling water, thereby reducing the temperature of the flame hole plate, further avoiding backfire and also effectively reducing the deformation damage of thermal stress to the flame hole plate. The water cooled fully-areated burner can be applied to commercial and civil heat and domestic hot water supply systems or devices as well as to small and medium size industrial gas heating devices.

Description

technical field [0001] The invention relates to a gas fuel high-efficiency, low-emission water-cooled complete premixed combustion system, in particular to a complete premixed combustion system with low nitrogen oxide emission and anti-backfire function. Background technique [0002] The combustion methods of gaseous fuels are divided into diffusion combustion, partial premix combustion and full premix combustion. Diffusion combustion is mostly suitable for low calorific value gas (such as coke oven gas) fuel, and the flame is longer and the heat intensity of combustion is lower during the combustion process, which is prone to incomplete combustion. At the same time, due to the large excess air coefficient, the combustion temperature is low. Partial premixed combustion is also known as atmospheric combustion. The flame structure is divided into inner and outer flames. The inner flame temperature is higher, resulting in more nitrogen oxides. With the implementation of oxide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D14/02F23D14/64
CPCF23D14/02F23D14/64F23D14/78F23D2203/007F23D2214/00
Inventor 刘凤国张振合吴志鹏杜新利赵冬芳韩冰冰
Owner TIANJIN CHENGJIAN UNIV
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