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Multi-drive controllable fire whirlwind experiment simulation and demonstration device

A demonstration device and experimental simulation technology, applied in the field of multi-drive controllable fire cyclone experimental simulation demonstration devices, can solve the problems of inability to effectively compare and study the fire cyclone, unable to simultaneously realize the demonstration of the fire cyclone, etc.

Pending Publication Date: 2019-11-22
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These devices are generally independent, and the same device cannot demonstrate fire whirlwinds under two induced conditions at the same time, and cannot effectively compare and study fire whirlwinds with different induction mechanisms.

Method used

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  • Multi-drive controllable fire whirlwind experiment simulation and demonstration device
  • Multi-drive controllable fire whirlwind experiment simulation and demonstration device
  • Multi-drive controllable fire whirlwind experiment simulation and demonstration device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0062] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0063] Refer to attached Figures 1 to 3 , a multi-drive controllable fire whirlwind experiment simulation demonstration device includes a base plate 20, a rotating hollow disc 2, an outer cylinder 9, an inner cylinder 10, a trapezoidal screw rod 3 and a slider, a fuel supply device, and a mechanical iris Parts of blade 8, driving device and measuring device; the above components are combined to form an overall system.

[0064] Rotating hollow disc 2 is a plexiglass plate with a diameter of 400 mm and a thickness of 8 mm. Eight threaded holes with a diameter of 5 mm, four through holes with a diameter of 6 mm, and a central circle with a diameter of 50 mm are opened in it. Four through holes with a diameter of 8 mm are opened around the center of the circle, and two slots with a length of 160 mm and a width of 10 mm are symmetrically opened ...

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Abstract

The invention provides a multi-drive controllable fire whirlwind experiment simulation and demonstration device, belongs to the technical field of fire safety, and particularly relates to a device forsimulating and demonstrating a naturally induced fire whirlwind or a forcibly induced fire whirlwind in a complicated environment with many controllable parameters. The device includes parts including a base plate, a rotating hollow circular disc, an outer layer drum, an inner layer drum, a trapezoidal screw and a slider, a fuel supply device, mechanical iris blades, a driving device and a measuring device, the outer layer drum and the inner layer drum are located above the rotating hollow circular disc to form a double-layer drum, the trapezoidal screw and the slider are fixed below the rotating hollow circular disc and connected to the double-layer drum, the fuel supply device is located above the rotating hollow circular disc, the mechanical iris blades are located on an upper part ofthe fuel supply device and used for adjusting opening and closing degrees of the blades, the measuring device is located on one side of the rotating circular disc to realize horizontal and vertical movements, and the driving device is located between a location below the rotating hollow circular disc and the base plate to provide a driving force to drive the rotating hollow circular disc to rotate.

Description

technical field [0001] The invention relates to a multi-drive controllable fire whirlwind experimental simulation demonstration device, which belongs to the technical field of fire safety, and particularly relates to a fire whirlwind with different fire source scales, different air intake widths, different device heights and different rotating rings. Quantitative simulation demonstration device. [0002] technical background [0003] The fire whirlwind is a special fire behavior induced by the mutual coupling between the fire plume and the surrounding rotating circulation. It has the characteristics of high burning rate, intense burning, and high flame temperature. It is common in forest grassland fires and some urban building fires. In an actual fire, due to the strong burning of the fire whirlwind, it is difficult to extinguish, and the fire head and heat flow direction of the fire whirlwind will change abruptly, which is difficult to predict, which will seriously threaten ...

Claims

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Application Information

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IPC IPC(8): G09B9/00
CPCG09B9/00
Inventor 周汝李红钢陶继伟苏腾于振江蒋军成
Owner NANJING UNIV OF TECH
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