Q: What aspects should we pay attention to in the maintenance of nitrogen machine?

A: It is very necessary to understand the accurate maintenance of nitrogen machine common sense, outstanding operational habits and punctual maintenance and protection, can extend the normal use of equipment life, reduce energy consumption, reduce repair costs, but also useful to prevent sudden problems, significantly reduce the negative impact of problems on production. The following lets you understand the accurate common sense and method of nitrogen machine maintenance.

On the nitrogen machine equipment maintenance experience

The establishment of accurate maintenance concepts, outstanding operational habits and punctual maintenance and protection can extend the normal service life of equipment, reduce energy consumption, reduce repair costs, and more useful to prevent sudden faults and significantly reduce the negative impact of faults on production.

First, usually use maintenance precautions:

1. The normal supply of power, air and temperature conditions required by the machine and the normal opening and closing; In particular, the stability of the power supply voltage reduces the damage to the controller and solenoid valve caused by the power supply question.

2. Always pay attention to the pressure of the air storage tank, and insist that the pressure of the air storage tank is between 0.7 and 0.75 MPa, not lower than the rated value.

3. Check the active drainer daily to avoid blocking and losing the drainage effect. If it is blocked, you can slightly open the manual valve, close the self-discharge valve, and then remove the active drainer, decompose and clean. When cleaning the active drainer, clean it with soap foam. Corrosive solutions such as gasoline, toluene and rosin water are strictly prohibited.

4. The operator should be punctual to investigate the three pressure gauges on the machine, make a normal record of its pressure changes for equipment fault analysis, investigate the flow meter and nitrogen purity at any time, and insist on the purity of nitrogen gas.

5. Check whether the heat sink of the cold dryer is clean on time every week to avoid affecting the efficacy and life of the dryer due to bad heat dissipation.

6. Operate and protect according to the requirements of the instrument application code, check the sensitivity of the solenoid valve/pneumatic valve, the pressure scale of the pressure regulator, the accuracy of the gas analyzer, the compression situation of the adsorption tower, the exhaust situation of the muffler, the cleaning degree of the inner tube of the flow meter, etc.

Two, periodic maintenance (punctual maintenance, usually completed by machine repair)

1: The periodic protection of the air-cooled cold dryer is mainly to blow the radiator on time and clean the sewage outlet; Carefully read the operation and protection instructions of the cold drying machine, and strictly protect the cold drying machine according to the cycle protection methods and methods recommended by the cold drying machine manufacturer.

2: The periodic protection of the precision filter is mainly based on the use of the filter to replace the filter element on time. If the filter pressure difference is found to be too large, replace the filter element in time. You can refer to the filter manufacturer recommended cycle protection methods and methods to protect the filter. Replace every 4000 hours of operation.

3: The replacement cycle of activated carbon filters is mainly based on the use of filters. If it is found that the system pressure drops too much, it may be activated carbon soaked in water and replaced activated carbon in time. The replacement cycle is usually 6000-8000 hours.

4: The calibration of the oxygen analyzer, check once a month, if the oxygen content is found to be higher than the rated value, it is necessary to think about whether the oxygen probe has expired and replace the oxygen probe in time. A replacement cycle of one year is advocated.