How to choose a good nitrogen machine

In China, as early as the early 80s has begun PSA pressure swing adsorption nitrogen production technology related research and application, today, technology and technology has become more and more mature, the core technology has reached the national * first * or even level
.

However, users still need to be cautious when choosing products, although there are many domestic manufacturers, but the technical level is uneven, the competition is also bad, and it is not too much
to describe it as chaotic.

First, the overall technology and process level of the domestic industry Pressure swing adsorption equipment is a complex complete set of systems, for the ranking equipment, more process nodes, the technology and manufacturing process put forward high requirements, the vast majority of manufacturers have not experienced this immersion technology research and development and verification process, there is no complete design standard system, copy the set, blindly seeking shortcuts, low-price competition, manufacturing process can not be talked about
.

Second, the overall level of configuration Because for most enterprises, technology is not its core competitiveness, in order to win orders in the market competition, often can only fight the price war, finally, can only do "articles" in the configuration of complete sets of equipment, such as: the choice of purification equipment, the wall thickness of pressure vessels, programmable valves and instruments of the brand and function selection
.

Among them, the nature of the bad is to make the concept of blurring the configuration of the edge ball and "stealing beams for columns"
.

2.
1 The user will usually specify that the carbon molecular sieve is required to choose an imported brand (Takeda or Iwatani), but the actual use of elbows is replaced by a domestic molecular sieve, because the carbon molecular sieve is all black cylindrical particles, and it is difficult for the general user to distinguish it at a professional level, because the price gap between the imported brand and the domestic brand is at least doubled; 2.
2 The stability of the program-controlled valve is directly related to the stability of the system equipment, and the brand of Zhi* is almost imitated in China, but the quality and price are far from each other; 2.
3 Monitoring instruments are the direct reference basis for user acceptance and use, and the matching and accuracy of the instruments directly affect the user's product quality and production safety
.

The above three points are an important part of the equipment, but because of the huge interests driven, there are not a few companies that lead to desperate risks, in other words, as long as the user is not professional or important enough, it is impossible to purchase the ideal product
.