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Test system for foaming times and oil surface stability of three-phase foam and test method thereof

A technology of stability testing and foaming ratio, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve problems such as single determination of foaming ratio or stability, inability to respond well to foam effects, and inability to measure foam stability. Achieve the effect of saving raw materials, simple structure and powerful function

Pending Publication Date: 2017-12-15
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, although there are a large number of devices for measuring the expansion ratio and stability of two-phase foams on the market, all of them can only measure the expansion ratio or stability of a single one, and cannot be measured at the same time, and they are not suitable for three-phase foams. phase foam, its stability may not even be measurable in practice
In addition, this type of device cannot measure the stability of the foam on the oil surface, and cannot reflect the effect of the foam in practical applications.

Method used

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  • Test system for foaming times and oil surface stability of three-phase foam and test method thereof

Examples

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Embodiment

[0021] Specific steps:

[0022] Attached figure 1 Build the three-phase foam expansion ratio and oil surface stability test system as shown, close the valve (6), pour the oil into the separatory funnel (3) to the bottomless measuring cylinder (2) and connect the separatory funnel (3) place, turn on the camera (12), electronic balance one (10), electronic balance two (11), and connect with a computer to record data. The prepared three-phase foam is added to the graduated bottomless measuring cylinder (2) through the three-phase foam delivery pipe (1). The height of foam addition is 8-10 cm. The foaming ratio is calculated by mass and volume. Whenever there is 2cm-3cm of water in the graduated dispensing pipe (5), open the control valve (6) to release the water, calculate the liquid rate according to the data recorded by the computer, and calculate the height according to the height change recorded by the camera (12) The change rate can be used to judge the foam stability, and...

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Abstract

The invention relates to detection equipment for the foaming effect and oil surface stability of extinguishing foam and a detection method thereof, in particular to a test system for the foaming times and oil surface stability of three-phase foam and a test method thereof. The test system comprises a foam supply system, an experiment system and a recording system. The foam supply system is arranged on the upper portion of the experiment system, and the recording system is located on the middle portion and the lower portion of the experiment system. The foam supply system comprises a three-phase foam delivery pipe, the front end of the three-phase foam delivery pipe is connected with a three-phase foam generation device, and the rear end of the three-phase foam delivery pipe is located on the upper portion of the experiment system. The experiment system comprises a bottomless measuring cylinder with scales, a separating funnel, a glass jacket, a connecting pipe, a beaker and a triangular support. The recording system comprises a first electronic balance, a second electronic balance and a vidicon; the first electronic balance is located under the triangular support, the second electronic balance is located under the beaker, and the vidicon and the bottomless measuring cylinder with scales are located at the same height; the first electronic balance, the second electronic balance and the vidicon in the recording system are connected with a computer through signal data transmission lines to record data in real time.

Description

technical field [0001] The three-phase foam expansion ratio and oil surface stability test system and its test method of the present invention relate to a test device and its test method, in particular to the foaming effect of a fire extinguishing foam and the stability of the foam on the oil surface Sex testing equipment and a testing method thereof. Background technique [0002] Foam fire extinguishing agent is widely used in various oil fires due to its good cooling effect, shielding effect, and suffocation effect. It can not only quickly cool the surface temperature of combustibles, but also isolate the heat radiation of combustibles from external heat sources, preventing the burning of combustibles. In contact with air, it has good fire-fighting effect. However, the foam fire extinguishing agent also has its shortcomings. Under the action of the fire plume, the foam is easy to burst or be blown away. When the temperature of the fire scene is high, the foam is very easy...

Claims

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Application Information

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IPC IPC(8): G01N25/00
CPCG01N25/00
Inventor 蒋军成傅刚陈强倪磊魏丹
Owner NANJING UNIV OF TECH
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