The main configuration of the nitrogen production system is as follows:
1. Air compressor
The nitrogen-making device uses an independent air compressor as much as possible, and can also use its own air compressor station to provide compressed air, but it is necessary to ensure that the nitrogen-making system is supplied with sufficient air volume and relatively constant input pressure. If there are many points of use of the air source, the intake pressure of the system must be controlled to ensure normal and stable operation. Ensuring a stable intake pressure is a prerequisite for the normal operation of the nitrogen generation system.
Note: The compressor must be equipped with a hot air duct to direct the heat dissipation and hot air to the outside, so as to avoid the equipment operation failure caused by the excessive temperature of the machine room!
2. Air buffer tank
The main function is to act as a buffer for compressed air to stabilize and store. In addition, it can also collect and remove most of the oil-water condensate that enters the compressed air source.
Danger: When removing the relevant accessories of the storage tank, the pressure must be relieved before disassembly. (Such as safety valve, pressure gauge)
Note: It is necessary to regularly check whether the blowdown valve of the air tank can discharge normally, so as to prevent excessive sewage from accumulating in the tank and affecting the subsequent purification system.
3. Freeze dryer
The refrigerated dryer is based on the principle of freezing and dehumidification to compress air in the freezer to exchange heat with the refrigerant. The moisture in the air is cooled and then condensed again, thereby condensing a large amount of water vapor and oil mist contained in it into liquid droplets. Drain by automatic drain. After this treatment, the dryness of the compressed air can reach -23℃ (pressure dew point can reach 1.6℃), and the oil content does not exceed 3ppm.
Note: The refrigeration dryer must pay attention to whether the refrigeration fails, and regularly check whether the drainage system is normal. When the equipment fails and the alarm light is on, the machine must be shut down to check the cause and eliminate the fault in time, otherwise it will have a serious adverse effect on the operation of the nitrogen-making equipment.
