Radiator performance wind tunnel test device capable of simulating multiphase flow air inlet environment

Abstract

The invention discloses a radiator performance wind tunnel test device capable of simulating a multiphase flow air inlet environment, which belongs to the technical field of radiator performance testdevices. The test device provided by the invention comprises a sand and dust generation device, a rain generation device, an upstream section, a radiator, a hot side circulation system, a downstream section, a separation and recovery section, an induced draft fan and a measurement controller. Performance wind tunnel tests of radiators in sand and dust environments with different sand and dust concentrations and different sand grain temperatures, performance wind tunnel tests of radiators in rain environments with different rainfall amounts and different raindrop temperatures and performance wind tunnel tests of radiators in sand and dust and rain composite environments can be carried out, and meanwhile, performance wind tunnel tests of radiators in conventional natural environments can becarried out, so that the applicability is wide; the parameter range of test conditions is large, and the test function is broadened; sand grains and water can be recycled, and the economical efficiency is high; air exhaust is thorough, and feasibility is high; the structure is compact, and the occupied area is saved.

Description

technical field [0001] The invention belongs to the technical field of radiator performance test devices, in particular to a radiator performance wind tunnel test device capable of simulating multiphase flow into the wind environment. Background technique [0002] For mobile military equipment and special equipment, its cooling system works efficiently, reliably and stably under extreme environmental conditions, which can ensure the high mobility and high reliability of the whole machine, which is of great significance. Based on the design research and component selection of the cooling system of related equipment, the extreme environment generally includes: high temperature environment such as 45°C to 50°C ambient temperature, plateau environment at an altitude of 4000m to 4500m, 3g / m 3 ~6g / m 3 Single limit environments such as sand dust environment with sand and dust concentration, rain environment with 17.5mm / 24h~20mm / 24h rain intensity; and composite limit environment f...

AI Technical Summary

Problems solved by technology

However, the experimental testing techniques and devices for the heat transfer performance and resistance performance of radiators in sandy and dusty environments, rainy environments, sandy dusty and rainy composite environments, etc. are rarely heard.

[0004] At present, the existing wind tunnel test device for radiators in dusty environment is mainly used for the assessment of the strength of radiators, and does not involve heat transfer and resistance performance tests of radiators, and the air ducts are generally horizontal open structures, and the sand particles in the test channels are very small. Difficult to distribute evenly, and the sand particles are easy to accumulate at the bottom of the air duct, resulting in changes in the flow field, and the exhaust air with high sand content also makes this type of device inconvenient for indoor application; wind tunnels for sand and dust environments for other purposes are basically arranged horizontally Air duct, long-term use will also lead to the accumulation of sand particles in the air duct. Even if sand recovery is considered, the effect is not good and it is not easy to realize, and the open structure is not convenient for indoor application

[0005] At present, the existing rain-drenched environment wind tunnel test device is mainly used to realize the rain-drenched working condition in a large space environment, but there is no relevant technology to realize the wind tunnel test device for the performance of the radiator in the rain-drenched environment.

[0006] As for the wind tunnel test device for the performance of radiators in sandy, dusty and rainy composite environments, there is currently a lack of relevant technologies to realize

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