The temperature control valve is an important component to control the internal temperature of the air compressor, which can control the temperature of the air compressor in a certain reasonable range. If the temperature control valve fails, the temperature probe cannot monitor the temperature in real time, the air compressor is prone to high temperature failure。

   Air compressor is an important component of PSA oxygen/nitrogen production system，Working in cold temperatures will have a great effect on it，Because of the low temperature，The lubricating oil in the air compressor circulation system will become viscous，Affect the service life of the machine，另外，Cold air into the air compressor will encounter heat to produce a lot of water vapor，The efficiency of the molecular sieve in the system decreased。In order to eliminate these problems, it is necessary to regulate the use of air compressors and reduce the impact of low temperatures on equipment。

1, pipeline cold protection because the water in the compressed air will be discharged through the automatic drainage valve, at low temperatures, it may freeze in the pipeline or other parts。Therefore, it is necessary to winterize the electronic drainage valve and piping system。

2. Keep the temperature of the machine room above zero. Use electric heater to raise and adjust the indoor temperature of the oxygen (nitrogen) machine room;Ensure that the ambient temperature of the equipment room is above 0 ° C。

3. Confirm that the working state of the automatic drainage valve is close to work or before the equipment needs to be shut down, fully open the drainage valve of the pipeline, gas storage tank, dryer, etc., and discharge the condensed water air before closing the valve。

4, shutdown time and space press management If you need to shut down the air separation system, you need to check that the gas emission is displayed as 0 on the display screen after the compressor is shut down.0bar, at the same time must close the valve。Then open the automatic drainage valve of the air compressor, gas storage tank and dryer, and close the air and condensate after completely empting。If it is a long shutdown, you must start once a week and repeat the above operations after 3 hours。

In short, in the low-temperature environment of the air separation equipment, we should always pay attention to the operating status of the air compressor, regularly carry out maintenance and maintenance, prevent the occurrence of air compressor failures, and ensure the smooth progress of production。

6, to ensure the sealing of all kinds of tubing joints: the pipe nut used in construction machinery is often disassembled, easy to loose due to the slip wire break, such as the poor accuracy of the two joints, the center line of the two cones does not coincide or the taper is different will cause oil seepage。The cone seal can be repaired by grinding, so that the nut is pressed tightly and firmly sealed。

In the process of operation, there will be different failures, these failures will cause the loss of manpower and money, such as the phenomenon of excessive resistance of the air compressor head, how should we solve it？

(1) Manual turning is a basic detection method for the connection and free rotation of the compressor power parts, transmission parts and linkage parts。By manually turning the compressor before starting, check whether the head and motor can rotate freely, and determine whether the rotation resistance increases according to the previous turning experience。