An experimental device for studying the combustion characteristics of pool fires with different liquid level depths

A technology of combustion characteristics and experimental equipment, applied in teaching models, instruments, educational appliances, etc., can solve problems such as ambiguity

Inactive Publication Date: 2019-07-12
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Judging from the research progress at home and abroad, regardless of the changes in the external environment and the size of the oil pan, the predecessors have obtained important basic data and research conclusions. , or for the radiation intensity and temperature distribution of adjacent storage tanks, but there are still few related studies on the combustion characteristics of pool fires under the condition of different liquid level depths, and many corresponding problems are still unclear, such as liquid pool fire Influence of different liquid heights on the burning rate of liquid pool fire

Method used

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  • An experimental device for studying the combustion characteristics of pool fires with different liquid level depths
  • An experimental device for studying the combustion characteristics of pool fires with different liquid level depths

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] An experimental device for studying the combustion characteristics of pool fires with different liquid levels and depths, including a combustion system and a data acquisition system. The quartz glass tube 11 is provided with an inner cup 12 and an outer cup 13, the outer diameter of the outer cup 13 is the same as the inner diameter of the quartz glass tube 11, the inner cup 12 is arranged in the outer cup 13, and the outer diameter of the inner cup 12 is smaller than the inner diameter of the outer cup 13 , the inner cup 12 and the outer cup 13 are coaxial with the quartz glass tube 11, a sealing strip is arranged between the outer cup 13 and the quartz glass tube 11 for sealing, a fuel pipe 15 is arranged at the bottom of the inner cup 12, and a fuel pipe 15 is arranged at the bottom of the outer cup 13. An air pipe 16 is provided, a fuel valve 152 and a fuel flow meter 151 are provided on the fuel pipe 15, an air valve 162 and an air flow meter 161 are provided on the...

Embodiment 2

[0028] A method of operation using the experimental device in Example 1 to study the combustion characteristics of a gas pool fire. First, the height of the inner cup 12 and the outer cup 13 is adjusted by the height adjustment device 14 according to the depth of the liquid level studied. The outer cup 13 is filled with rectifiers, the fuel valve 152 is adjusted, the required fuel is determined by the fuel flow meter 151, and the fuel pipe 15 is passed into the inner cup 12, rectified by the rectifiers in the inner cup, and the air pipe valve is adjusted 161, determine the required air through the air pipe flowmeter 162, pass it into the outer cup 13 through the air pipe 16, perform rectification through the rectifier in the outer cup, turn on the computer 22 in the data acquisition system, and connect the thermocouple 21 And radiometer 23, ignite the gaseous fuel in the inner cup 12, after the gas flow stabilizes, by the data accepted on the computer 22, research gas pool fire...

Embodiment 3

[0030] An operation method using the experimental device in Example 1 to study the combustion characteristics of a liquid pool fire, first adjust the height of the inner cup 12 and the outer cup 13 through the height adjustment device 14 according to the depth of the liquid level studied, and fill the outer cup Rectifier, open the fuel pipe valve 151, the liquid fuel is passed into the inner cup 12 from the fuel pipe 15, when the inner cup 12 is filled with fuel, open the air pipe valve 161 to adjust the air flow, and determine the flow rate according to the air pipe flow meter 162 The flow rate of air, the air is rectified by the rectifier in the outer cup 13, the computer 22 in the data acquisition system is turned on, the thermocouple 21 and the radiometer 23 are connected, the liquid fuel in the inner cup 12 is ignited, and received by the computer 22 data to study the combustion characteristics of pool fires.

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Abstract

The invention discloses an experimental device for doing research on different-liquid level depth pool fire combustion characteristics, which comprises a combustor and a data acquisition system, wherein the combustor is round on the whole, the upper part is composed of an opened quartz glass tube, the lower part is composed of an inner cup and an outer cup with a height regulator, the height position of the inner cup and the outer cup can be regulated according to different liquid level depths in need of research, the inner cup is connected with a fuel tube, and the outer cup is connected withan air tube. Compared with the prior art, the experimental device for doing research on different-liquid level depth pool fire combustion characteristics has the following advantages that the air-fuel ratio is changed through regulating the fed air flow, the height regulator is regulated to regulate the liquid level depth, and thus, the gas pool fire combustion characteristics under different liquid level depths and air-fuel ratios can be observed; and a thermocouple and a radiometer can transmit the radiation amount in the case of fuel combustion and the temperature field information in theexperiment to a computer in real time for analyzing the pool fire combustion characteristics.

Description

technical field [0001] The field of the invention relates to a burner, in particular to an experimental device for studying the combustion characteristics of pool fires with different liquid level depths. Background technique [0002] In recent years, fire accidents in my country's petrochemical, chemical and other process industries are on the rise. If a fire occurs in some large-scale hazardous chemical storage facilities, such as large oil storage tanks, very serious tank deformation, inclination, leakage or even explosion may occur, often causing a large number of casualties, major economic losses or serious environmental damage. Pollution, the consequences will be unimaginable. In view of this kind of situation, it is necessary to carry out the research on the fire combustion characteristics of oil storage tanks with liquid level and depth, and obtain the fire dynamics evolution law of oil storage tanks under the conditions of different liquid level and depth under com...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09B23/00
Inventor 陶常法钱叶剑马培勇
Owner HEFEI UNIV OF TECH
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