Daily maintenance tips for liquid nitrogen generators

　　Liquid nitrogen generator is an advanced gas separation technology. It uses imported carbon molecular sieve as adsorbent and separates air at room temperature to produce high-purity nitrogen.When the air leakage is small, soap foam can be used to check the joints, and when the flow is large, it is more effective to use the segmentation method to check. The method is to first remove the pipe connected to the generator outlet and block the generator outlet with the original plug , Observe whether the gas pressure can return to normal, and whether the nitrogen or hydrogen flow can return to "000". If the above two are normal, it means that the generator is not leaking.

　　Maintenance method of liquid nitrogen generator after usual use:
　　1. Operate and maintain according to the application requirements of the instrument, regularly check the sensitivity of the solenoid valve, the accuracy of the gas analyzer, the pressure scale of the pressure regulator, the compression of the adsorption tower, the exhaust of the muffler, the cleaning degree of the inner tube of the flowmeter, etc.
　　2. Always pay attention to the pressure of the air storage tank to ensure that the pressure of the air storage tank is between 0.7 and 0.75 MPa, not lower than the rated value.
　　3. The normal supply and normal opening and closing of the power supply, air supply and temperature conditions required by the machine, especially the stability of the power supply voltage, can reduce the damage to the controller and solenoid valve caused by the power supply question.
　　4. The operator should punctually investigate the three pressure gauges on the machine, make a usual record of their pressure changes for equipment fault analysis, and regularly check the flowmeter and nitrogen purity. The nitrogen purity of the outlet gas has been maintained.
　　5. Check whether the heat sink of the dryer is clean every week to avoid the reduction of the efficiency and life of the dryer due to poor heat dissipation.
　　6. Check the active drain every day to avoid blocking and losing the drain effect. If it is blocked, you can slightly open the manual valve, close the self-draining valve and then remove the active drain, disassemble and clean. When cleaning the active drain, use soap foam to clean it.
　　The above is all the knowledge and information that the editor brings to you today. I hope it can be helpful to you. At the same time, you are also welcome to continue to pay attention to this site. The editor will regularly bring you more knowledge and information about related products for your reference.