Test
system for investigating the microburst
vaporization and
combustion of droplet groups at high temperature and
high pressure, comprising a high-pressure fixed-volume bomb, a
heating furnace (3), a test and
image acquisition device, and a pressurization device, wherein the high-pressure fixed-volume bomb comprises a high-temperature high-pressure fixed-volume bomb (12) and a low-temperature high-pressure fixed-volume bomb (17) connected to each other by a high-pressure
ball valve (15), and wherein the
heating furnace (3) is arranged in the high-temperature high-pressure fixed-volume bomb (12), and wherein the test and
image acquisition device is arranged outside the high-temperature high-pressure fixed-volume bomb (12).to capture images of droplet groups in the high-temperature, high-pressure, fixed-volume bomb (12); and wherein the pressurization device is connected to the high-temperature, high-pressure, fixed-volume bomb (12) and low-temperature, high-pressure, fixed-volume bomb (17) respectively to provide a
working pressure for these, characterized in that the
experimental system further comprises a device for generating and suspending droplet groups and a device for conveying droplet groups arranged in the low-temperature, high-pressure, fixed-volume bomb (17), wherein the device for generating and suspending droplet groups comprises a droplet generator (25) and a droplet group suspension frame (16), and wherein the droplet group suspension frame (16) is arranged on the device for conveying droplet groups and is located below the droplet generator (25), and wherein,when the high-pressure
ball valve (15) is closed, the droplet generator (25) generates the droplets and the droplets are suspended on the droplet group suspension frame (16), and wherein, when the high-pressure
ball valve (15) is open, the device for conveying droplet groups moves the droplet group suspension frame (16) with the suspended droplets into the heating oven (3).