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Visual measuring device and method of flame frontal surface structure of movable fire source

A measuring device and flame front technology, which is applied in the field of visual measuring devices for the flame front structure of a moving fire source, can solve problems such as uncontrollable, acceleration a cannot be adjusted in a large range, and the fire source point cannot move and run at a speed, etc., to achieve applicable Wide range, simple device structure, and improved speed and accuracy

Inactive Publication Date: 2011-09-07
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the shortcomings and deficiencies of the above-mentioned prior art, and provide a simple and reasonable visual measurement device for the flame front structure of the moving fire source, which can solve the problems in the volume force field of the device in the prior art. Acceleration a cannot be adjusted in a large range and the ignition source point in the experimental device cannot be moved and its running speed cannot be controlled

Method used

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  • Visual measuring device and method of flame frontal surface structure of movable fire source
  • Visual measuring device and method of flame frontal surface structure of movable fire source
  • Visual measuring device and method of flame frontal surface structure of movable fire source

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Figure 1 to Figure 4 Shows the specific structural schematic diagram of this embodiment, such as figure 1 As shown, the visual measurement device for the flame front structure of the moving fire source includes a control computer 1, a burner 6, a turntable mechanism 7, an image acquisition device, a turntable drive device and a support seat 12, and the burner 6 is connected to the turntable mechanism 7 Above, the turntable mechanism 7 is arranged on the support seat 12; the turntable drive device is placed in the support seat 12, and connected to the turntable mechanism 7 through the rotating shaft 9; the turntable drive device and the image acquisition device are respectively connected to the control computer 1; The image acquisition device is connected with the turntable mechanism 7 and is set corresponding to the position of the burner 6 .

[0038] Before the test, according to the fuel type of the flame 5 generated by combustion, select one of the solid fuel burne...

Embodiment 2

[0063] This embodiment has the same structure as Embodiment 1 except the following features: the outer diameter of the turntable body is 800mm.

[0064] The fuel of the burner is liquid fuel.

[0065] In order to detect the influence of the volume force field that the flame is subjected to on the flame front structure produced by the combustion of liquid fuel, its test process: according to the preparations before the experiment described in Example 1, the burner is replaced by a burner of liquid fuel , adjust the opening of the nozzle in the burner to control the height of the flame to 0.15m. This experiment presents images of flame structures under different volumetric force fields. The variable frequency controller is used to adjust the speed of the variable frequency motor, so that the volumetric force field, that is, the centrifugal acceleration a suffered by the flame is 2g, 10g, 20g, 50g, 100g, 200g, 500g, 1000g, 1500g, 2500g. Start various image acquisition devices a...

Embodiment 3

[0067] This embodiment has the same structure as Embodiment 1 except the following features: the outer diameter of the turntable body is 1000 mm.

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Abstract

The invention provides a visual measuring device of a flame frontal surface structure of a movable fire source, and the visual measuring device comprises a control computer, a combustor, a turntable mechanism, an image acquisition device, a turntable driving device and a support seat, wherein the combustor is connected to the turntable mechanism; the turntable mechanism is arranged on the support seat; the turntable driving device is arranged in the support seat and connected with the turntable mechanism through a rotating shaft; the turntable driving device and the image acquisition device are respectively connected with the control computer; and the image acquisition device is connected with the turntable mechanism and arranged opposite to the combustor. The invention also provides a method for realizing the visual measurement of the flame frontal surface structure of the movable fire source through the device provided by the invention. According to the invention, the rotating speed of the combustor can be adjusted through a frequency conversion electromotor, the size of the flame which is generated by the combustor is controlled, the flame frontal surfaces of the fire source at various motion speeds and under combustion strengths are generated, and the device provided by the invention has the advantages of wide application range, simple structure as well as flexibility and convenience in operation.

Description

technical field [0001] The invention relates to a flame front measuring device, which belongs to the technical field of experimental equipment, in particular to a visual measuring device and method for a flame front structure of a moving fire source with adjustable moving speed. Background technique [0002] The flame front is also called the flame front, also known as the "flame wave front", "flame front" or "flame wave". It refers to the thin layer that separates the combustion products from the unburned mixture in the ignited combustible mixture, which is the most critical part of the combustion field. In order to gain an in-depth understanding of the effects of the flame front on heat release rate, pollutant generation, and flame stability, it is necessary to study its geometric characteristics and motion dynamic behavior, which is also a necessary method to explore and describe turbulent flames. [0003] There are three types of methods for studying the geometric chara...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/24
Inventor 楼波龙新峰
Owner SOUTH CHINA UNIV OF TECH
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