China University of Mining and Technology

Zhenqi Hu

Jianping Zhang

Jinlong Zhao

Haoyuan Li

The present invention discloses the development and application of an experimental device for the thermal stability and re-ignition of fire foams under different heating conditions. This device comprises a rectangular mounting module, a radiation module, a convection module, a supply module, a foam injection module, a measurement module and an intelligent control module as shown in FIG.: (i) the rectangular mounting module is used to load the oil and foam; (ii) the radiation module simulates the effects of radiative heat flux, whereas the convection module simulated the effects of convective heat flux by a fire plume; (iii) the supply module is used to supply water and oil; (iv) the foam injection module is used to generate and inject foam to the rectangular mounting module; and (v) the measurement module is used to monitor the internal temperature and heat flow parameters of the rectangular mounting module in real time, and to record the foam layer failure time and the flame re-ignition process and finally (vi) the intelligent control module controls all the other modules for any test condition. The present invention can be used not only to demonstrate the collapse process of the foam layer and the re-ignition process, but to provide guidance for improving foam stability under the coupled effect of convective heat flux and radiative heat flux in practical fire scenarios.

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Beijing, China

Zhenqi Hu