Icing wind tunnel spraying device and water supply pressure quick response device and method thereof

Abstract

The invention relates to the technical field of aircraft anti-icing and deicing performance testing, and discloses an icing wind tunnel spraying device and a water supply pressure quick response device and method thereof. The icing wind tunnel spraying device comprises a gradient pipe, a water tank, a control device and a plurality of spraying assemblies, wherein the top end of the gradient pipe is higher than the bottom end of the gradient pipe; the top end and the bottom end of the gradient pipe are provided with pressure sensing devices correspondingly; the cross sectional area of the gradient pipe is gradually reduced in the direction from the top end to the bottom end; the water tank communicates with the top end of the gradient pipe through a first pipeline; the water tank communicates with the bottom end of the gradient pipe through a second pipeline; the first pipeline is provided with a switch valve and a booster pump so as to pump water in the water tank into the top end of the gradient pipe and enable the water to circulate in the gradient pipe; the second pipeline is provided with a flow control valve; the control device is electrically connected with the booster pump and the two pressure sensing devices; and the spraying assemblies are arranged along the length direction of the gradient pipe. According to the arrangement, the water supply pressure in the gradient pipe can be adjusted before the spraying assemblies are started, and invalid icing cloud does not exist.

Description

technical field [0001] The invention relates to the technical field of anti-icing and deicing performance testing of aircraft, and more specifically, relates to an icing wind tunnel spraying device and a rapid response device and method for water supply pressure thereof. Background technique [0002] The icing wind tunnel is a large-scale special wind tunnel with complex performance. It is used to study the icing form, icing tolerance and Ground test equipment for its anti-icing technology. The core component of the icing meteorological conditions is the icing cloud generating device. The icing cloud generating device is generated by the array of nozzles on multiple spray rods installed on the spraying equipment in the spray section of the icing wind tunnel. The parameters are realized by adjusting the water supply of the spray equipment, the pressure and temperature of the air supply. [0003] The goal of water supply pressure adjustment for icing wind tunnel spray equipm...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a kind of icing wind tunnel spray equipment and its water supply pressure rapid response device and method to solve the problem of time-consuming adjustment of water supply pressure after opening the nozzle in the icing rain and fog test in the prior art, and the existence of invalid icing cloud and fog test Technical issues with parameters

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