Measuring device for liquid drainage of foam thin film and measuring method

Abstract

The invention discloses a measuring device for liquid drainage of a foam thin film and a measuring method. The measuring device for liquid drainage of the foam thin film includes a supporting table, atransparent container which can be placed on the supporting table, a supporting frame, a thin film frame which can extend into the transparent container, a drive part, a light source arranged on theouter side of the drive part and a camera arranged on the outer side of the transparent container. A through hole is formed in a top cover of the transparent container, a supporting rod is fixedly connected to the upper side of the thin film frame, one end of the supporting rod is fixedly connected to the thin film frame, and the other end of the supporting rod can be detachably and fixedly connected to the supporting frame, and the supporting rod can penetrate through the through hole; the drive part can drive the supporting frame or the supporting table to rise and fall; the light source iscapable of emitting monochromatic diffused light; and the camera is used for photographing interference fringes throughout a thin film on the thin film frame. The measuring device for liquid drainageof the foam thin film can effectively realize the liquid drainage performance of foam.

Description

technical field [0001] The invention relates to the technical field of fire-fighting equipment, and more specifically relates to a foam thin film liquid analysis measuring device and a measuring method. Background technique [0002] With the advancement and development of science and technology, people's demand for fire prevention and control is also increasing. Among all kinds of fires, flammable liquid fires are often difficult to extinguish because of their fast burning speed, strong fluidity, and easy re-ignition. Every year, a large number of flammable liquid fire accidents occur in chemical plants, oil fields, storage tanks, airports and ships, and all of them have caused serious consequences. [0003] Foam fire extinguishing agent is the most commonly used and most effective fire extinguishing agent for extinguishing flammable liquid fires. On the one hand, the liquid precipitated from the foam can absorb heat, instantly cool the fuel, and play the role of cooling a...

AI Technical Summary

Problems solved by technology

However, this method is complex to operate, difficult to implement, and expensive to implement

In addition, the device provided by this method cannot measure the liquid drainage velocity of the foam film, resulting in low test accuracy and poor repeatability

At present, there is still a lack of measuring devices and measuring methods for accurately evaluating the liquid separation performance of fire-fighting foam films at home and abroad.

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