Measurement device and method for sealing performance of firefighting foam

A technology for sealing performance and measuring device, which is applied to measuring devices, instruments, scientific instruments, etc., can solve problems such as difficult implementation, lack of fire-fighting foam sealing, and inability to quantitatively analyze the sealing performance of fuel vapor by foam, and achieve the effect of ingenious structure.

Active Publication Date: 2019-03-19
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is difficult to implement, has limited versatility, and cannot quantitatively analyze the sealing performance of the foam to fuel vapor
At present, there is still a lack of measuring devices and methods for the sealing performance of fire-fighting foam at home and abroad.

Method used

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  • Measurement device and method for sealing performance of firefighting foam

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034]1. Close the valve I 11, the valve II 15, the valve III 20, the valve IV 33, and the valve V 34, and turn on the heater 9 to keep the temperature of the fuel A in the fuel tank 6 stable.

[0035] 2. Open the valve III 20 of the foam inlet pipe 22, open the foam generator 21 and slowly inject 400ml of fire-fighting foam A into the plexiglass container 13.

[0036] 3. Open the valve IV 33 and valve V 34 while injecting the fire-fighting foam A, open the gas cylinder valve II 29 of the nitrogen gas cylinder II 28, adjust the flow controller II 31 to set the nitrogen flow rate to 200mL / min, and make the nitrogen gas flow through The air inlet pipe 32 slowly sweeps the foam surface from the lower part of the porous glass plate 24, and at the same time, the gas chromatograph 36 is turned on, and the gas flowing out of the gas port 27 is continuously detected by the gas chromatograph 36.

[0037] 4. Open the valve I11, open the gas cylinder valve II2 of the nitrogen gas cylinde...

Embodiment 2

[0042] 1. Close the valve I 11, the valve II 15, the valve III 20, the valve IV 33, and the valve V 34, and turn on the heater 9 to keep the temperature of the fuel A in the fuel tank 6 stable.

[0043] 2. Open the valve III 20 of the foam inlet pipe 22, open the foam generator 21, and slowly inject 400 ml of fire-fighting foam A into the plexiglass container 13.

[0044] 3. Open the valve IV 33 and valve V 34 while injecting the fire-fighting foam A, open the gas cylinder valve II 29 of the nitrogen gas cylinder II 28, adjust the flow controller II 31 to set the nitrogen flow rate to 200mL / min, and make the nitrogen gas flow through The air inlet pipe 32 slowly sweeps the foam surface from the lower part of the porous glass plate 24, and at the same time, the gas chromatograph 36 is turned on, and the gas flowing out of the gas port 27 is continuously detected by the gas chromatograph 36.

[0045] 4. Open the valve I 11, open the gas cylinder valve II 2 of the nitrogen gas cy...

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Abstract

The invention relates to a measurement device and method for the sealing performance of firefighting foam. A main body of the device is an organic glass container; the organic glass container is internally provided with a porous glass disc, a porous organic glass pipe, a foam liquid inlet, a fuel steam gas inlet and a water outlet; an organic glass top cover is arranged at the top end of the organic glass container; a gas inlet and a gas outlet are arranged on the organic glass top cover; the gas inlet is connected with a flow meter, a pressure gauge, a gas bottle valve and a nitrogen gas bottle in sequence through a gas inlet pipe; the gas outlet is connected with a gas chromatograph through a gas outlet pipe; and the measurement device can be used for accurately and quantitatively sealing the sealing performance of the firefighting foam on fuel steam. The sealing performance of the firefighting foam on the fuel steam can be quantitatively measured through analyzing the time of overflowing foam from the fuel steam. The sealing performance of the different firefighting foam on the same fuel and the sealing performance of the same firefighting foam on different fuel can be systematically researched. The measurement device is ingenious in structure and is suitable for measuring the stealing performance of the firefighting foam on the fuel steam.

Description

technical field [0001] The invention relates to the technical field of evaluating fire-fighting foam performance, in particular to a measuring device and measuring method for fire-fighting foam sealing performance, which are especially suitable for quantitatively measuring the sealing performance of various types of fire-fighting foam to fuel vapor. Background technique [0002] With the development of science and technology and the continuous improvement of people's living standards, people's demand for fire prevention and control is also increasing. In all kinds of fires, flammable liquid fires are often difficult to put out due to their fast burning speed, strong flowability, and easy re-ignition. Every year, a large number of flammable liquid fires occur in chemical plants, oil fields, storage tank warehouses, airports, ships and other areas, and all have serious consequences. [0003] Fire-fighting foam is the most common and effective method for fighting flammable liq...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/88
CPCG01N30/88
Inventor 余潇阳姜宁陆守香黎昌海
Owner UNIV OF SCI & TECH OF CHINA
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