How to debug the pharmaceutical high and low temperature circulation device

The pharmaceutical high and low temperature circulation device adopts a fully enclosed pipeline design and a plate heat exchanger, which reduces the demand for heat transfer fluid and at the same time improves the heat utilization rate of the system to achieve rapid temperature rise and fall
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The heat transfer medium of the pharmaceutical high and low temperature circulation device is in a closed system with an expansion vessel.
The heat transfer medium in the expansion vessel does not participate in the circulation.
Whether it is high temperature or low temperature, the temperature of the expansion tank is from room temperature to 60, which can reduce the heat transfer medium during operation.
Risk of moisture absorption and volatilization
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The successful development of the pharmaceutical high and low temperature circulation device has greatly reduced the operating cost required for independent temperature control of the experimental equipment, and the operation is simple, without the need for professional operators to operate, thereby reducing the operating cost to a certain extent
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The cooling and heating temperature control process of the equipment is relatively high, which avoids the independent temperature control state with inaccurate temperature and reduces the waste caused by the actual temperature being too high
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Generally speaking, the pharmaceutical high and low temperature circulation device is composed of a high pressure control part and a low pressure control part.
If the exhaust pressure exceeds a given value, the compressor high pressure control part will cut off the compressor power supply, the compressor will be shut down, and the suction pressure will be lower than the given value.
, The low-voltage control part cuts off the power of the compressor, makes it stop, and sends out an alarm signal
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In order to prevent the leakage of refrigerant in the pharmaceutical high and low temperature circulation device, it is recommended to use a closed valve, which is arranged on the pipeline between the compressor discharge chamber and the suction chamber
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　　The pharmaceutical high and low temperature circulation device not only prolongs the life of heat transfer oil, but also improves the efficiency of heating and cooling equipment
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The control temperature range is wide, and there is no need to replace the liquid medium when switching between cold and hot Setting, special user PID can be adjusted automatically
.