Environmental test equipment for cooperative control of salt spray concentration and relative humidity

An environmental test equipment for cooperative control of salt spray concentration and relative humidity, comprising a dry salt spray generation system, an air conditioning system, a mixing chamber, a test chamber, and an electrical control cabinet, the dry salt spray generation system is a first chamber comprising a dry spray generator, a first temperature regulation module, and a first humidity regulation module, the dry spray generator grinds salt particles into micron sized dry salt aerosol particles, and adjusts the dry salt spray generation system to a set temperature and relative humidity through the first temperature regulation module and the first humidity regulation module, then the dry salt aerosol particles are introduced into the mixing chamber;

• the air conditioning system is a second chamber comprising a second temperature regulation module and a second humidity regulation module, used to regulate air inside the air conditioning system to the set temperature and relative humidity, and then the air is introduced into the mixing chamber;
• the mixing chamber is used to mix the dry salt aerosol particles inside and the introduced regulated air evenly, and then introduce them into the test chamber;
• the test chamber is used for conducting environmental tests, and is equipped with sensors to monitor the salt spray concentration, the relative humidity, and a temperature;
• the electric control cabinet is used to control an operation of devices in the dry salt spray generation system, the air conditioning system, the mixing chamber, and the test chamber;
• based on a principle of conservation of salt and moisture content before and after the mixing, the environmental test equipment obtains a salt spray concentration relationship and a relative humidity relationship among environmental parameters in the test chamber, dry salt spray environmental parameters in the dry salt spray generation system, and the environmental parameters of the regulated air in the air conditioning system;
• after determining the environmental test parameters required for the test chamber, obtaining the temperature and relative humidity parameters required for the dry salt spray generation system, as well as the temperature and relative humidity parameters required for the air conditioning system, through the salt spray concentration relationship and the relative humidity relationship.