are the requirements for the constant temperature and humidity machine? According to the requirements for the preservation of cultural relics in museum display cabinets, the constant temperature and humidity machine should meet the following requirements: 1 . Do not contact with the chemical components that pollute the air; Do not use chemical methods to dehumidify . 2 . The noise of the constant temperature and humidity machine should not exceed the specified decibel value. 3 . It is best to use semiconductor refrigeration, which will not produce noise or pollution. It is the direction of research at home and abroad, but it has not been successful, because the efficiency of semiconductor refrigeration is low, the power consumption is large, and the heat dissipation problem is difficult to solve. 4 . Although museum display cabinets are used to store valuable cultural relics, the state investment is still relatively poor. The price of constant temperature and humidity machines is relatively high, which is unacceptable to users. If we do not worry about this factor, it is useless to produce them. 5 . The volume should be very small. If it is too big, it is not easy to put it into the museum display cabinet. Specific performance in the following aspects: 1. Caustic pollution caused by unclean ambient air; 2. Physical damage caused by too low or too high ambient air temperature and humidity; 3. Irreversible permanent damage caused by severe fluctuation of ambient air temperature and humidity.
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