Refrigeration effect of ozone aging tester
The ozone aging tester, also known as the "ozone aging test box", can be used for rubber products such as vulcanized rubber, thermoplastic rubber, cable insulation sheaths and other products, under static tensile deformation, exposed to air and air with constant ozone concentration without light. In a constant temperature test box, the sample is tested for a predetermined time, and the degree of cracking or other performance changes on the surface of the sample is used to evaluate the ozone aging resistance of the rubber.
Refrigeration principle of ozone aging tester:
1. Refrigeration system and compressor: In order to ensure the cooling rate and minimum temperature requirements of the test chamber, the refrigeration system of this test chamber adopts a cascade refrigeration system composed of imported compressors, which has reasonable matching and reliability. High, easy to use and maintain, etc.;
2. The working principle of refrigeration: the refrigeration cycle adopts the reverse Karyo cycle, which consists of two isothermal processes and two adiabatic processes. The process is as follows: the refrigerant is adiabaticly compressed by the compressor to a higher pressure, which consumes power The temperature of the exhaust gas rises, and then the refrigerant exchanges heat with the surrounding medium isothermally through the condenser to transfer heat to the surrounding medium. After the refrigerant passes through the shutoff valve adiabatic expansion to perform work, at this time the refrigerant temperature decreases. After zui, the refrigerant absorbs heat isothermally from the higher temperature object through the evaporator, so that the temperature of the cooled object is reduced. This cycle is repeated to achieve the purpose of cooling down;
3. The design of the refrigeration system applies energy adjustment technology. An effective processing method can ensure that the energy consumption and cooling capacity of the refrigeration system can be effectively adjusted under the normal operation of the refrigeration unit, so that the refrigeration system Operating costs have dropped to a more economical state.
