Cold dryers are the abbreviation of frozen dryers. Cold dryers are new technologies, which belong to gas source treatment components in the pneumatic system.Use the refrigerant and compressed air for heat exchange, and reduce the dew point temperature of the compressed air to the range of 2 to 10 ° C.With the continuous development of the refrigerator industry, more and more enterprises have entered the air compressor industry, and more and more people favor the cold trunk industry.
Introduction
Refrigeration Compressors
The refrigeration compressor is the heart of the refrigeration system, which is finally discharged by the exhaust pipe.
Condenser
The role of condenser is to discharge the high -pressure and overheated cooling of the refrigerant compressor to become a liquid refrigerant, and its heat is taken away by cooling water or cooling air.The refrigeration process can be continuously carried out.
Evaporator
The evaporator is the main heat exchanges of the refrigerator. The compressed air is forced to cool down in the evaporator. Most of the water vapor cools and condenses into a liquid water discharge machine, so that the compressed air is dry.Low -voltage refrigerant liquid has transformed into a low -pressure refrigerant steam in the evaporator, absorbing the surrounding heat during the phase change, thereby cooling the compressed air.
Expansion valve
The thermal expansion valve (capillary tube) is a throttling mechanism of the refrigeration system.Among the refrigerators, the supply of evaporator refrigerant and its regulators are achieved through a processing mechanism.The throttling mechanism enters the evaporator from high temperature and high -pressure liquid.
What do you need to pay attention to when using the cold dryer
1) Do not put places where the sun, rain, wind blowing or relative humidity greater than 85%.Do not place in environments with many dust, corrosive or flammable gases.Dont place it in a place with vibration, condensed water and frozen danger.Dont be too close to the wall to avoid poor ventilation.It is necessary to use in an environment with corrosive gases. The dryer or stainless steel thermal exchange device of the copper pipe should be used by the rust -proof treatment.It should be used below 40 ° C.
2) Do not connect to the import of compressed air.In order to facilitate maintenance, the maintenance space should be set up to ensure the maintenance space.The vibration of the air compressor should be prevented from being transmitted to the dryer.Do not add the weight of the pipe to the dryer directly.
3) Do not stand upward or flatter.
4) The power supply voltage allows fluctuations to be less than ± 10%.A leakage circuit breaking protector with an appropriate capacity shall be set.You must be ground before use.
5) Compressed air import temperature is too high, the ambient temperature is too high (above 40 ° C), the use flow exceeds the amount of air volume, voltage fluctuations exceed ± 10%, and the ventilation is too poor (also need to breathe in winter, otherwise the room temperature will increase increase) Under the circumstances, the protective circuit will play a role, indicator lights, and stop operation.
6) When the air pressure is higher than 0.15MPa, the drainage of the automatic automatic drainator can be closed.The drainage of the cold dryer is too small, the drainage port is in a state of opening, and the air is blown out.
7) Poor the quality of the air. If it is mixed with dust and oil, these stolen goods will be adhered to the thermal exchanger to reduce its working efficiency, and at the same time, the drainage is also easy to fail.It is hoped that the filter is set in the dryer import, and the drainage is not less than once a day.
8) The ventilation port of the dryer should be cleaned once a month with a vacuum cleaner.
9) Connect the power, and after the state of operation is stable, then connect to the compressed air.After stopping, you must wait for more than 3min to start again.
10) If you use an automatic drainter, you should regularly check whether the drainage function is normal.Frequently clean the dust on the condenser.To check the pressure of refrigerant frequently, you can determine whether the ability of the refrigerant to leak and the ability of the frozen machine has changed.Check out whether the temperature of condensation water is normal.

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