Extreme severe convection environment simulation device for torch test and method thereof

The invention discloses an extreme severe convection environment simulation device for torch testing and a method thereof, and belongs to the field of test simulation equipment. After air is pressurized by the compressor and cooled by the liquid nitrogen, the air has the characteristics of high wind speed and low temperature of strong convection gas, and the prepared hail is conveyed through high-pressure air, so that the hail can be effectively prevented from being attached to the surface of the ice maker and can be mixed with the high-pressure air to form strong convection simulation gas. And the ice maker adopts a gradient temperature field formed by liquid nitrogen and an electric heating block to realize customized regulation and control of the hail size. Strong convection simulation gas enters the environment simulation cabin through the multidirectional gas inlet, and the handheld torch can be blown from multiple angles and multiple directions, so that the handheld torch is tested in an environment whi