High-expansion foam experimental researching apparatus and method

Abstract

The invention discloses a high-expansion foam experimental researching apparatus and method. The high-expansion foam experimental researching apparatus comprises a high-expansion foam generating apparatus, a high-expansion foam receiving apparatus, a data acquisition apparatus and a data processing apparatus; the high-expansion foam generating apparatus comprises a foaming cylinder and a foam guiding cylinder, the foaming cylinder is horizontally arranged on a support and used for generating high-expansion foam by utilizing foaming liquid, the foam guide cylinder is used for guiding the high-expansion foam generated in the foaming cylinder into the high-expansion foam receiving apparatus; the high-expansion foam data in the high-expansion foam receiving apparatus is acquired by virtue of the data acquisition apparatus and transmitted to the data processing apparatus; and the data processing apparatus processes the received data to obtain a foaming multiple, stability and a coverage rate of the foam. According to the invention, the high-expansion foam generating apparatus is adopted for generating the high-expansion foam, six operation parameters including types of foam screens andincoming air flow rate, distance between foam screens and nozzles, types of nozzles, solution pressure and types of foaming liquid can be freely adjusted so that analysis and calculation of the foaming multiple, the stability and the coverage rate of the foam can be realized

Description

technical field [0001] The invention relates to the field of safety technology, in particular to a high-expansion foam experimental research device and method. Background technique [0002] High-expansion foam has irreplaceable advantages in hazard control: water curtain and water spray system are far inferior to high-expansion foam in reducing heat radiation; water curtain system requires much higher water flow and water pressure; high-expansion foam cannot extinguish fire and needs to be used with Use with dry powder. Use high-expansion foam to control the fire first, and then use dry powder to extinguish the fire. If only dry powder is used, the same amount of dry powder cannot be extinguished; dry powder cannot guarantee non-reignition, so it is necessary to use high-expansion foam to control vapor diffusion and fire. However, domestic and foreign studies on high-expansion foam performance and damage control theory are still relatively scarce. High-expansion foam gener...

AI Technical Summary

Problems solved by technology

[0009] (1) The above patents all adopt water conservancy driving mode, which is difficult to realize in the laboratory;

[0010] (2) The above patents do not separately separate the adjustable parameters such as the type of foam net, the size of the air intake, the distance between the foam net and the nozzle, and the type of nozzle, so as to realize the individual adjustment of each parameter;

[0011] (3) The above patents intend to increase the foam coverage, but the laboratory site and equipment are limited;

[0012] (4) The above patents do not consider the outflow of the foaming liquid, which may easily lead to errors in the calculation of the foaming ratio and waste of liquid;

[0013] (5) The above patent data analysis is not systematic, and the extraction and processing of research data is difficult

[0014] To sum up, in the prior art, there is still a lack of effective solutions for the problems of hydraulic drive of high-expansion foam foaming devices, few adjustable operating parameters, difficult adjustment, large foaming rate, outflow of foaming liquid, and difficult data collection and processing.

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