Carbon molecular sieve is currently the engineering field of pressure swing adsorption (referred to as P.S.A) air separation nitrogen rich adsorbent, this nitrogen in the chemical industry, oil and gas industry, electronics industry, food industry, coal industry, pharmaceutical industry, cable industry, metal heat treatment, transportation and storage are widely used.

Carbon molecular sieve technical parameters:
Particle diameter: 1.4-1.6mm

Adsorption period: 2×60S

Bulk specific gravity: 670-690 g/l

Compressive strength: ≥100 N/ piece

Two. Nitrogen machine carbon molecular sieve replacement reason analysis

1. The service life of the nitrogen machine expires and the phenomenon of aging

The service life of carbon molecular sieve is reduced by 5% per year (because of the aging problem of carbon molecular sieve, it is inevitable) the quality of carbon molecular sieve will become worse if the nitrogen machine is used for too long, the purity of nitrogen produced will be low, and the carbon molecular sieve needs to be replaced, and the purity can be restored. Many customers have reported that after a certain number of years of use, the nitrogen machine has insufficient gas production, the purity of the nitrogen machine has decreased, and the purity of the nitrogen machine is not up to standard.

2. Nitrogen machine into the oil or water lead to nitrogen machine carbon molecular sieve poisoning

In the process of using carbon molecular sieve, such as improper operation and maintenance will cause poisoning. Such as: in the early stage of air purification is not equipped with treatment equipment or equipped with equipment with disease operation, resulting in oil, water impurities with the air directly into the adsorption tower by carbon molecular sieve adsorption poisoning, analytical capacity is seriously damaged, nitrogen production and nitrogen purity greatly reduced, in such cases, you have to consider replacing carbon molecular sieve.

The so-called nitrogen machine carbon molecular sieve poisoning refers to the failure of the manufacturer to maintain the air degreasing and water removal system in time, resulting in the oil entering the nitrogen machine adsorption tower, the oil will block the carbon molecular sieve adsorption chamber and cannot adsorb oxygen molecules, so the nitrogen from the flow meter will eventually have a high oxygen content. At this moment, the user should be combined with the production needs to replace the air filter element and automatic blowdown valve in time, and the oil removal activated carbon, and the most important thing is to replace the adsorbent of the nitrogen machine, which can restore the normal nitrogen production capacity.

3. Nitrogen machine carbon molecular sieve powder ejection

The difference between the pressing device of the nitrogen machine, the existing cylinder pressing, spring pressing, air bag pressing, pressing the cylinder can be monitored in real time, but due to the absence and addition of carbon molecules pulverized damage, resulting in nitrogen machine powder black smoke, at this time the entire system needs to completely replace the carbon molecular sieve. If it is still normal to add carbon molecular sieve at this time, there will be carbon molecular sieve constantly ejected, the consequences will be more and more serious, the entire nitrogen pipeline system will have nitrogen machine carbon molecular sieve powder.

4. Nitrogen machine system structural damage, pipeline welding caused by nitrogen machine carbon molecular sieve loss, which requires the nitrogen machine adsorption tower structure air tightness detection, looking for de-welding position, replace the new carbon molecular sieve, nitrogen machine during the use of vibration or equipment movement and other reasons led to adsorption tower structural failure such as adsorption tower pipe welding, carbon molecular sieve flow, carbon molecular sieve loose and powder.

Three. After-sales service content

According to the requirements of the majority of nitrogen machine users, Troy has successfully replaced carbon molecular sieve services for dozens of nitrogen machines such as Sujing, Hang Oxygen, Tianyi, Feida, Shenlan, Changjiang, Shanda, etc. To provide customers with thoughtful, effective and satisfactory service. Always is the company has always adhered to the service concept. The company's professional technical service personnel can provide the following services:

1. Diagnose and analyze the faults of PSA nitrogen making machine at the technical level.

2. Can provide timely and effective technical solutions.

3. Provide high quality carbon molecular sieve.

4. Technical personnel can be sent at any time for technical cooperation and guidance.

Repair and maintenance of domestic and imported nitrogen machines; Nitrogen machine fault free consultation and elimination; Supply of nitrogen machine accessories for manufacturers throughout the country; Carbon molecular sieve replacement and equipment debugging; Add carbon molecular sieve compaction device to completely solve the problem of molecular sieve powder; Nitrogen machine pipeline pneumatic valve replacement, cleaning, valve seal replacement and testing; PLC computer control system programming and replacement; On-site replacement and activation of deoxygenated catalyst and dehydrogenated catalyst; Design and installation of automatic hydrogenation system for purification equipment; Equipment small gas modification large gas modification of the whole unit site.