Test method and device for evaluating total flooding extinguishing performance

A technology of fire extinguishing performance and test device, which is applied in the field of fire extinguishing applications, and can solve problems such as property loss, no evaluation of fire extinguishing performance for total submersion, casualties, etc.

Inactive Publication Date: 2013-02-20
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its fire detectors are also only tested in the actual application of fire extinguishing, and no enlightenment is given on the evaluation of the performance of total flooding fire extinguishing
[0005] It is very necessary to evaluate the fire extinguishing performance of the total submersion fire extinguishing device before actual use, because the performance of the fire extinguishing device cannot achieve the desired effect, then it will cause heavy property losses and even casualties in actual use. Therefore, it is of great significance to establish a test method and device that can effectively and accurately evaluate the fire extinguishing performance of total flooding.

Method used

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  • Test method and device for evaluating total flooding extinguishing performance

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Embodiment 1

[0032] Such as figure 1As shown, the present embodiment is a test device for evaluating the fire extinguishing performance of total flooding, comprising: test chamber 1, air outlet 2, air inlet 3, light reduction coefficient measuring device 4, oxygen measuring probe 5, heat radiation probe 6, combustion Tube 7, thermocouple tree 8, wind speed sensor 9, data collector 10, computer 11, and the fire extinguishing device 12 to be evaluated for total submersion fire extinguishing performance is also shown in the figure. Wherein the air inlet 3 is arranged at the bottom of one side of the test box 1, the air outlet 2 is arranged at the top center of the test box 1, and the air inlet and the air outlet are provided with wind speed sensors for measuring wind speed. The temperature measuring probes of the thermocouple tree 8 are located at different heights directly above the combustion tube 7, the heat radiation probe 6 is located near the combustion tube 7, the probes face the upper...

Embodiment 2

[0056] Present embodiment except following feature other structures are with embodiment 1:

[0057] In this embodiment, the number of extinction coefficient measuring devices 4 is three. The arrangement position is: at the vertical height 100mm higher than the combustion cylinder, one is arranged at the positions with horizontal lengths of 200mm, 400mm and 600mm from the edge of the combustion cylinder respectively.

[0058] In this embodiment, the number of oxygen measuring probes 5 is three. The arrangement position is: at the vertical height 100mm higher than the combustion cylinder, one is arranged at the positions with horizontal lengths of 200mm, 400mm and 600mm from the edge of the combustion cylinder respectively.

[0059] In this embodiment, the thermocouple tree 8 includes five sheathed thermocouples, and the diameter of the sheathed thermocouples is 1 mm.

[0060] In this embodiment, the height of the combustion cylinder 7 is 200 mm, and the wall thickness is 0.3 ...

Embodiment 3

[0064] Present embodiment except following feature other structures are with embodiment 1:

[0065] In this embodiment, there are two light reduction coefficient measuring devices 4 .

[0066] In this embodiment, there are two oxygen measuring probes 5 .

[0067] In this embodiment, the thermocouple tree 8 includes three sheathed thermocouples.

[0068] In this embodiment, the inner space of the test box 1 is a cube with a volume of 8m 3 , test chamber 1 contains 1 door, and the area of ​​the door is 1m 2 .

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Abstract

The invention discloses a test method and a test device for evaluating total flooding extinguishing performance. The method comprises the following steps of: placing a fire extinguishing device with the total flooding extinguishing performance to be evaluated in a test box or an air inlet of the test box; igniting a burning cylinder in the test box; starting the fire extinguishing device to extinguish the fire; acquiring obscuration coefficients of different parts in a fire extinguishing space, heat radiation intensity of the parts at a certain distance from a fire source, the concentration of the oxygen in the fire extinguishing space, and the burning temperature of the fire source in the burning cylinder during extinguishing of the fire; then uploading the acquired data to a data processing device; and finally evaluating the total flooding extinguishing performance by the data processing device according to the acquired signals. The device comprises the test box, an obscuration coefficient measuring device, an oxygen measuring probe, a heat radiation probe, the burning cylinder, a thermocouple tree, a data acquiring device and the data processing device. The test method disclosed by the invention is carried out for the fire extinguishing device which is to perform total flooding extinguishing; and the fire extinguishing effect of the device is detected in a plurality of ways, so that the total flooding extinguishing performance can be effectively evaluated.

Description

technical field [0001] The invention relates to the technical field of fire extinguishing applications, in particular to a test method and device for evaluating the fire extinguishing performance of total flooding. Background technique [0002] Total flooding fire extinguishing is a fire extinguishing method that sprays the designated amount of fire extinguishing agent in the protected area and makes it evenly fill the entire protected area for fire extinguishing. It is mainly relative to local submerged fire extinguishing. [0003] The Chinese patent with the publication number CN 201101839 discloses a fully submerged automatic fire extinguishing device capable of self-checking, including a pressure vessel filled with high-efficiency fire extinguishing agent and high-pressure gas for driving, a sprinkler head sealed and connected with the pressure vessel, An alarm display device electrically connected to the electrical components of the nozzle; a signal sensor that can auto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62C37/50
Inventor 梁栋刘建勇莫善军褚燕燕赵哲朱德民沈浩王海蓉王粤董文莉晏建波
Owner SUN YAT SEN UNIV
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