Four-degree adjustable simple acceleration environment test device

Abstract

The invention provides a four-degree adjustable simple accelerated environment test device which comprises a test box capable of controlling temperature and irradiance, a light-transmitting inner cabin is arranged in the test box, an independent salt mist environment is formed in an inner cavity of the light-transmitting inner cabin, and a dry heat environment and an irradiation environment are formed outside the light-transmitting inner cabin and inside the test box. The temperature, the humidity, the irradiance and the salt mist concentration in the test box and the light-transmitting inner cabin can be cooperatively controlled, meanwhile, evaporation of a salt solution can be flexibly promoted, the formed salt mist is closer to a natural state, light irradiation and the temperature are transmitted to a sample through the light-transmitting inner cabin, and the salt mist concentration is reduced. The device not only can be used for developing a four-factor acceleration test in a marine environment, but also can be used for developing a natural environment test in the marine environment by taking out the light-transmitting inner cabin, and can also be used for developing a three-factor environment acceleration test.

Description

technical field [0001] The invention belongs to the technical field of environmental testing, in particular to a four-degree adjustable simple accelerated environmental testing device. Background technique [0002] High-end equipment such as weapons, ships, and aircraft are affected by environmental factors such as temperature, humidity, solar radiation, and salt spray in service in a marine environment (the temperature, humidity, solar radiation, and salt spray concentration in this invention are referred to as four degrees or four factors), The rapid and full verification of the environmental adaptability of its materials and devices / components in the development stage is an important basis for supporting the reasonable selection of equipment for environmental adaptability, and is of great significance for improving the environmental adaptability of equipment during actual service. The failure evaluation of equipment mainly includes natural exposure test and indoor acceler...

AI Technical Summary

Problems solved by technology

[0004]However, the following problems and difficulties exist in the use of these existing environmental test equipment to carry out accelerated marine environment tests: 1. The volume is large and the structure is complex, and it usually needs to be controlled under normal temperature and humidity conditions. The salt mist control system and radiation control system are installed on the basis of the test chamber, which is more than 50% larger than the conventional temperature and humidity test chamber. The additional salt mist control system involves salt mist generator, salt spray spray System, salt spray pipeline and many other components make the structure of the test chamber very complicated; 2. The stability and reliability after long-term use are poor, especially the hot and humid salt spray can easily lead to critical damage in the test chamber. Aging and corrosion of components and even systems; 3. The manufacturing cost and maintenance cost are extremely high. Referring to the typical adjustable four-degree / four-factor environmental test device as an example, its commercial cost is 500,000-2 million / set. The working conditions of the four-factor environmental test are very harsh, requiring regular replacement of heaters, compressors, controllers, and sensors, and the annual maintenance cost is tens of thousands of yuan; 4. The direction of the sprayed salt mist is single and difficult to adjust. It is impossible to simulate the effect of salt spray in the natural state; 5. The flexibility is poor. Once the test is stopped and the box is opened during the test, the test cannot be continued quickly and accurately. The response of the radiation sensor is delayed, and the radiation cannot be adjusted quickly and accurately. Spend

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