Liquid combustion system and combustion method capable of obtaining high-stability flame based on high precision control

A combustion system, high stability technology, applied in the field of energy and environment, can solve the problem of not considering the condensation of the burner, achieve the effect of solving the instability of the combustion flame, avoiding low heating temperature, improving simplicity and accuracy

Pending Publication Date: 2020-09-18
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this liquid atomization and evaporation system solves the problem of liquid evaporation and atomization, it does not consider the problem of condensation from the evaporation atomization chamber to the burner

Method used

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  • Liquid combustion system and combustion method capable of obtaining high-stability flame based on high precision control
  • Liquid combustion system and combustion method capable of obtaining high-stability flame based on high precision control

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Such as figure 1 As shown, the liquid combustion system based on high-precision control to obtain a highly stable flame includes a combustion unit 100 , an evaporative atomization unit 200 , an air supply unit 300 , a fuel unit 400 and a carrier air unit 500 .

[0048] Wherein, the combustion unit 100 includes a burner 110, the outer surface of the burner 110 is wrapped with a heating ring 120, and the heating ring 120 is connected with a third thermocouple and a temperature controller 130, and the burner 110 includes a fuel side and a Oxidant side (not marked in the figure). A heating ring is installed on the outer wall of the burner and connected to the third thermocouple and a thermostat to precisely control the air outlet temperature, which can not only obtain a highly stable flame, but also ensure the accuracy of the obtained data.

[0049] Further, the evaporative atomization unit 200 includes an evaporative atomization chamber 210, and the evaporative atomizatio...

Embodiment 2

[0057] The liquid combustion method of high-precision control and high-stable flame in this embodiment adopts the system in Embodiment 1, and the specific steps are as follows:

[0058] Step 1. Heating the compressed air to 150°C in the air heater 360 and passing it into the oxidant inlets on both sides of the burner 110, as a protective gas and a combustion-supporting gas for the combustion of the hot body fuel after evaporation and atomization;

[0059] Step 2, the mixed fuel of n-heptane and ethanol from the liquid injection needle 220 and the N from the gas injection needle 230 2 Fully mixed in the evaporation atomization heating chamber and heated to 150 ° C, when the heating temperature exceeds the boiling point of the mixed fuel of n-heptane and ethanol, the liquid droplets will be evaporated into a gaseous state;

[0060] Step 3. In order to avoid condensation of the mixed fuel vapor of n-heptane and ethanol in the process leading to the burner 110, the first stainless...

Embodiment 3

[0063] The liquid combustion method of high-precision control and high-stable flame in this embodiment adopts the system in Embodiment 1, and the specific steps are as follows:

[0064] Step 1. Heating the compressed air to 250°C in the air heater 360 and passing it into the oxidant inlets on both sides of the burner 110, as a protective gas and a combustion-supporting gas for the liquid fuel combustion after evaporation and atomization;

[0065] Step 2, the mixed fuel of gasoline and ethanol from the liquid injection needle 220 and the N from the gas injection needle 230 2 Fully mixed in the evaporation atomization heating chamber and heated to 250°C, when the heating temperature exceeds the boiling point of the mixed fuel of gasoline and ethanol, the liquid droplets will be evaporated into a gaseous state;

[0066] Step 3. In order to avoid condensation of the mixed fuel vapor of gasoline and ethanol on the way to the burner 110, the first stainless steel pipeline 250 passes...

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Abstract

The invention discloses a liquid combustion system and a liquid combustion method capable of obtaining a high-stability flame based on high precision control, and belongs to the field of energy and environment. The system comprises a combustion unit and an vaporizing atomizing unit; the vaporizing atomizing unit comprises an vaporizing atomizing chamber; the vaporizing atomizing chamber is connected to the combustion unit through a stainless steel pipeline; a first heating belt is arranged on the outer surface, except for an intersection and a corner, of the stainless steel pipeline; and the first heating belt is connected to a first thermocouple and a temperature controller. According to the system and method, on one hand, the temperature of each part in an experiment process can be controlled precisely, different gasifying temperatures and pipeline temperature preserving temperatures can be provided with regard to different liquid fuels, and the problems of energy waste caused by lowheating temperature, reliquefaction of gasified liquid and over-high heating temperature and the like are avoided; and on the other hand, the problems of low combustion efficiency, instable combustion flame and the like are solved, and researches of flame combustion characteristics and emission characteristics can be performed in a laboratory.

Description

technical field [0001] The invention belongs to the technical field of energy and environment, and specifically relates to a liquid combustion system and a combustion method for obtaining a highly stable flame based on high-precision control. Background technique [0002] With the development of the times and the progress of society, cars have become an indispensable means of transportation for every household, and the use of cars will inevitably produce NO X , SO X and soot and other pollutants, causing environmental pollution and endangering human health. How to improve the combustion efficiency of liquid fuel, reduce the emission of pollutants and reduce the cost of operation has become a hot and difficult point of current research. [0003] As a renewable fuel, biomass liquid fuel has the advantages of high volatility, low ignition point, high combustion efficiency, low pollution, and wide source of raw materials; but it also has high requirements for equipment, high v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D11/22F23D11/44F23D11/36
CPCF23D11/22F23D11/448F23D11/36
Inventor 楚化强聂晓康牙宇晨齐家威胡家龙
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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