Technical advantages of laboratory liquid nitrogen machines

High-purity nitrogen is continuously generated using a chromatographic separation method. Gas supplied by an air compressor pump is introduced into a molecular sieve, where oxygen, carbon dioxide, water, and other impurities are removed. Only nitrogen is allowed to pass through the molecular sieve into a storage tank, and after adjusting the appropriate pressure and flow rate, it can be used directly. This islaboratory liquid nitrogen generatorthe working principle.

I. Technical Advantages of Laboratory Liquid Nitrogen Generators

1. Simple Operation of Laboratory Liquid Nitrogen Generator

It saves the labor and pain of transporting cylinders. As long as the power switch is turned on, nitrogen can be generated, and it can be used continuously or intermittently. The nitrogen volume is stable and does not decay.

2. High Technology

The electrolytic cell uses a vertical single-layer double cathode. The laboratory liquid nitrogen generator's new membrane separation technology uses a PCA carrier and a noble metal catalyst in the catalyst layer, improving the catalytic efficiency of the electrolytic cell, resulting in high yield and high nitrogen purity. After more than 100 hours of high-voltage, high-current aging tests, the performance and operating state of the electrolytic cell are very stable.

3. Low Nitrogen Dew Point

laboratory liquid nitrogen generatorUsing high-molecular-weight permeation separation technology and an effective dehumidification device, the original humidity can be reduced, and automatic drainage after shutdown. Using metal polymer dehumidification and two-stage adsorption, the nitrogen purity is significantly improved.

4. Program Control

The machine control system uses a chip. All work processes are completed by program control. Automatic constant pressure, constant current, nitrogen flow rate can be fully automatically adjusted according to the Applications, 0-300ml/min.

5. Three-Level Catalysis

In addition to the secondary catalyst in the electrolytic cell, there is another type of three-pole catalyst. The catalyst is a new type of noble metal, so the oxygen content of the nitrogen gas output by the laboratory liquid nitrogen generator is less than 3ppm.

II. Inlaboratory liquid nitrogen generatorAfter using it for a period of time, it was found that the silica gel in the drying tube changed color from bottom to top, and it needs to be replaced when it exceeds a certain height. The process is as follows:

1. Turn the dry lid in the direction of the picture until it is fully rotated. Do not do this work when you are under pressure.

2. Remove the inner tube from the main tube upwards, remove the cotton swab, and pour out the silica gel.

3. Put in new (or dry) silica gel, do not exceed the small vent hole near the nozzle. Cover it with cotton, cotton yarn or other debris, do not bury it in the end face of the drying nozzle (otherwise it will not leak). Then, put the inner tube into the outer tube of the drying tube.

4. Tighten the cap of the drying tube, check for leaks with soapy water, and then start the machine.

5. The replacement method of activated carbon is the same as that of silica gel.