Incubator is a very common laboratory equipment. The common keys are: biochemical incubator, constant temperature equipment incubator, carbon dioxide incubator, anaerobic fermentation incubator, Aspergillus flavus incubator, sunshine incubator and low temperature incubator. Low temperature incubator, also known as ultra-low temperature storage box, is an experimental shell that can cool and store objects in a normal way. It is widely used in storage culture medium, serum protein, drug and its microbial culture, and natural environment experiment.
Basic principle of low temperature incubator:
The inverse card cycle system is used for the refrigeration cycle of the constant temperature double-layer oscillation incubator, which consists of two isothermal processes and two adiabatic processes. The whole process is as follows:
The refrigerant is insulated and shrunk by the refrigeration compressor to achieve a higher working pressure, and the output power is consumed to increase the temperature of the exhaust pipe. After that, the refrigerant is carried out with the surrounding substances through the heat exchanger through the cooler in an isothermal process to send heat energy to the surrounding substances. When the refrigerant temperature decreases, the refrigerant will be insulated and deformed through the interception valve. According to the isothermal process of the condenser, the refrigerant finally absorbs heat from the high-temperature object, thereby reducing the temperature of the object to be cooled. This circulation system circulates to achieve the goal of reducing temperature.
The design of the refrigeration system uses kinetic energy control technology, which can not only ensure the normal operation of the refrigeration unit, but also make reasonable and effective adjustments to the energy consumption and power of the refrigeration system, so as to maintain the refrigeration system at the most operating conditions. When bthc is selected, the constant temperature incubator manufacturer will operate the output of the electric heater according to the continuous operation of the refrigeration system according to the set temperature point and the conclusion of PID automatic calculation, and finally achieve stable balance.
