IMPROVED HIGH-PRESSURE PIPE FOAM GENERATOR
Urpose. Investigation of a possibility to improve the ПВТ high-pressure pipe foam generator for production of the medium-expansion gas-mechanical foam. Methodology. Analytical investigations and computer simulation of a device for generating the gasmechanical foam; circuit and constructive solutions to the problem of the device development. Results. The technical parameters and the construction of the device for gas-mechanical foam generation have been determined. The advantages and disadvantages of the selected equipment configuration circuits for generation and delivery of the gas-mechanical foam have been accounted for, and its operation has been analyzed. Scientific novelty. For the first time the water-flow control device has been applied that secures its preset consumption and is pressure-independent from the fire water pipeline. Also there is no necessity in preparation and forced feed of a foam agent solution to the foam generator as the foam agent enters the foam mixing chamber due to the ejection using the energy of fire pipeline water. Practical value. Possibility of presetting the required expansion ratio of the generated gas-mechanical foam by adjusting the water flow control device. To feed the foam agent solution on the nets using the water energy instead of the electric power ensuring the additional safety during the elimination of accidents in mine conditions.