Water spray cooling device for high-altitude simulated test bench

Abstract

The invention relates to a water spray cooling device for a high-altitude simulated test bench. The water spray cooling device comprises a central body and a plurality of water spray pipes, wherein the central body is positioned on a central axis of a housing of the high-altitude simulated test bench; the middle of the central body is cylinder-shaped, and the two ends of the central body are cone-shaped; the tops of cones are processed into arc shapes; one end of each water spray pipe is connected with the central body through a bolt, and the other end of each water spray pipe is connected with the housing of the high-altitude simulated test bench through a flange; water inlets of the water spray pipes are positioned at the ends of the water spray pipes, which are connected with the housing; and a plurality of water spray holes are formed on the water spray pipes. By adopting the device, high temperature gas can be evenly mixed with water drops on the same cross section, thereby achieving an effect of rapid temperature reduction; the device has a simple and reliable structure and is easy to detach and mount; and the numbers of the water spray pipes and the water spray holes can be set according to actual situations, thereby effectively improving the utilization efficiency of cooling water.

Description

technical field [0001] The invention relates to a cooling device, in particular to a water spray cooling device used for a high-altitude simulation test bench. Background technique [0002] In order to determine the high-altitude characteristics of solid rocket motors, it is necessary to conduct experimental verification on a high-altitude simulation test bench. During the test, the temperature of the gas discharged from the engine can reach over 2000K, so it is necessary to install a cooling device on the test bench to cool the gas, otherwise it will cause damage to the back-end equipment. Most of the cooling devices currently used are in the form of spray cooling, such as figure 1 As shown, 1 is the shell of the test bench, 2 is the water spray pipe, and 3 is the sprayed water droplets. The water spray pipe is close to the inner wall of the shell, and its axis direction is the same as that of the shell axis. water hole. With the water spray cooling device with this stru...

AI Technical Summary

Problems solved by technology

With the water spray cooling device with this structure, since the water droplets are sprayed from the periphery to the center, the gas flow and the water droplets are mixed unevenly in the same section, and the cooling effect at the center of the gas flow is not good, and when the gas flow velocity is high, it is necessary to It takes a long distance to reduce the temperature of the gas, which will have a bad impact on the back-end equipment

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