Environmental test equipment for cooperatively controlling salt mist concentration and relative humidity

Abstract

The invention discloses environment test equipment for cooperatively controlling salt mist concentration and relative humidity, which comprises a dry salt mist generation system, an air conditioning system, a mixing chamber, a test chamber and an electric control cabinet. The environment test equipment is adopted for obtaining salt mist concentration relational expression and relative humidity relational expression among environment parameters in a test room, dry salt mist environment parameters in a dry salt mist generation system and environment parameters of conditioning air in an air conditioning system base on the salt content and water content conservation principle before and after mixing, and after determining the environment test parameters required in the test room, obtaining a temperature parameter and a relative humidity parameter which need to be set in the dry salt mist generation system and a temperature parameter and a relative humidity parameter which need to be set in the air conditioning system through the salt mist concentration relational expression and the relative humidity relational expression; meanwhile, the equipment can adjust the dry salt mist generation system and the air conditioning system through deviation feedback of monitoring data, and dynamic balance of the laboratory environment is achieved.

Description

Technical field [0001] The present invention relates to an environmental test equipment for salt mist concentration and relative humidity synergistic control. Background technique [0002] The salt clower test is a commonly used metal material corrosion resistance evaluation method. The salt spray box currently carrying the salt spray test is to transfer the solution into a fine mist into the test chamber with compressed air. The resulting salt fog has the characteristics of high concentration, relatively humidity, and has a very fast acceleration for metal materials. . When using a salt spray test for electrical equipment to carry out environmental adaptability research, because existing test equipment and methods have a rapid acceleration, resulting in different parts of electrical equipment quickly causing serious corrosion, causing the failure of equipment, but Unable to reproduce different types of faults that can appear during actual use. [0003] Furthermore, the existin...

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Problems solved by technology

When using the salt spray test to carry out environmental adaptability research on electrical equipment, because the existing test equipment and methods have a rapid acceleration effect, the different parts of the electrical equipment will quickly undergo severe corrosion, which will cause the failure of the equipment. It is impossible to reproduce different types of failures that may occur in electrical equipment during actual use

[0003] Furthermore, the relative humidity of the existing salt spray chamber is very high during the salt spray test, and the salt spray and humidity cannot be controlled synergistically, which is quite different from the actual service environment of the tested equipment. Because of the obvious difference in the environment, the use of The salt spray test results obtained by the existing salt spray chamber may lose the reference value to evaluate the environmental adaptability of the equipment

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