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Slot type flame combustion device

A flame combustion and slot type technology, applied in the field of slot type flame combustion devices, can solve the problems of poor flame stability, tempering and deflagration, and high nitrogen oxide emission, so as to ensure the efficiency and quality of combustion efficiency and reduce harmful gases. Produces, the effect of flame burning stability

Pending Publication Date: 2018-01-16
LIJU THERMAL EQUIP TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are several problems: 1. Poor flame stability, prone to flashback and deflagration; 2. Due to the fine mesh of the weaving fabric, it is easy to be blocked; 3. The emission of nitrogen oxides is high when the air excess coefficient is low.

Method used

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  • Slot type flame combustion device
  • Slot type flame combustion device
  • Slot type flame combustion device

Examples

Experimental program
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Effect test

Embodiment Construction

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] refer to Figure 1 to Figure 11 , a slot-type flame combustion device involved in the present invention, including a burner and an air delivery device, wherein the specific structure is as follows.

[0031] The air supply device includes a blower 1, the air outlet of the blower 1 is provided with a gas mixing device 2, the side of the gas mixing device 2 is provided with a gas inlet 3, and the gas outlet end of the gas mixing device 2 passes through a flange 16 It is connected with the isobaric chamber 13, and the gas outlet end of the isobaric chamber 13 is connected with the burner.

[0032] The burner includes an upper water chamber 4 and a lower water chamber 5 arranged symmetrically up and down. Between the upper water chamber 4 and the lower water chamber 5, there are a fire grate 11 and a flame-stabilizing pipe 12 arran...

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Abstract

A slot type flame combustion device comprises a burner and an air supply device, wherein the air supply device comprises a blower, a gas mixing device is arranged on an air outlet of the blower, a gasinlet is arranged on the side of the gas mixing device, the outlet end of the gas mixing device is connected with an equal pressure chamber through a flange, and the air outlet end of the equal pressure chamber is connected with the burner. The burner comprises a water feeding chamber and a water discharging chamber which are symmetrically arranged up and down. A fire grate and a flame-stabilizing tube which are vertically arranged up and down side by side are arranged between the water feeding chamber and the water discharging chamber, the two sides of both the fire grate and the flame-stabilizing tube are provided with communicating pipes. The communicating pipes are internally hollow and are communicated with the water feeding chamber and the water discharging chamber. The slot type flame combustion device ensures fuel efficiency and quality; cooling water in the fire grate and the flame-stabilizing tube can take away heat quickly, the flame temperature is effectively reduced, andgenerated harmful gases are reduced; at the same time, the flame combustion is stable and phenomena such as tempering deflagration, blockage and flameout do not occur.

Description

technical field [0001] The invention belongs to the technical field of furnace combustion, and in particular relates to a slit-type flame combustion device. Background technique [0002] Steam boilers refer to industrial boilers that heat water to a certain temperature and produce high-temperature steam, which are widely used in industrial production; natural gas is generally used as the combustion gas in existing steam boilers. [0003] The main component of natural gas is methane, which will produce nitrogen oxides due to the high temperature of the flame front during the mixed combustion process with air, causing environmental pollution. According to Teridovitch's combustion mechanism, when the temperature of the combustion flame front is higher than 1500°C, nitrogen oxides will start to be formed, and the synthesis rate of nitrogen oxides will increase by 6-7 times for every 100°C increase in the flame front temperature. Therefore, controlling the flame front temperatur...

Claims

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Application Information

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IPC IPC(8): F23D14/02F23D14/62
Inventor 王永强沈炳元黄观炼
Owner LIJU THERMAL EQUIP TECH
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