Analysis of the reasons why the purity of nitrogen generator does not meet the standard

As an important industrial equipment, the purity of nitrogen produced by nitrogen generator is crucial. However, in actual use, the purity of nitrogen generator often fails to meet the standard, which is mainly caused by the following key factors.

First of all, the purity of raw gas is the basic factor affecting the purity of nitrogen produced by nitrogen generator. The normal operation of nitrogen generator depends on high-purity raw gas as the starting material. If the purity of raw gas itself is poor, the purity of nitrogen produced will inevitably be greatly reduced. The raw gas may contain various impurities and impure substances, such as moisture, grease, oxygen, etc. These impurities will directly interfere with the purification effect of nitrogen during the nitrogen production process. For example, the presence of moisture may react with nitrogen, and oxygen will be mixed into the final product to reduce its purity. Therefore, before starting the nitrogen generator for nitrogen production, it is necessary to implement appropriate and effective purification treatment procedures for the raw gas, and remove various impurities and impure substances contained in the raw gas as much as possible through special purification equipment and technical means, so as to ensure that the purity of the raw gas reaches the standard level required for the efficient operation of the nitrogen generator.

Secondly, the standardization of the operation process has a critical impact on the purity of the nitrogen generator. The operation of the nitrogen generator has strict procedures and requirements, which must be followed meticulously. Once there is an error in the operation process or the relevant requirements are not met, the purity of the nitrogen produced by the nitrogen generator will be difficult to meet the standard. For example, if the various operating parameters are not accurately adjusted during the operation, the pressure value of nitrogen separation, the control value of gas flow, etc. are set unreasonably, or the operation time is too short, and the nitrogen production reaction is not given enough time to complete, or there are loopholes and imperfections in the entire operation process, these situations will have a significant negative effect on the final purity of nitrogen. In addition, if the temperature, pressure and flow rate during the operation of the equipment are not appropriate, the purity of nitrogen will also decrease. For example, too high a temperature may change the performance of some separation elements, unstable pressure may affect the separation effect of gas in the separation device, and too fast or too slow a flow rate is not conducive to the effective separation of nitrogen and other impurity gases, which will cause the purity of nitrogen produced by the nitrogen generator to fail to meet actual needs.

Furthermore, the aging and damage of the equipment itself is an aspect that cannot be ignored. After a long period of continuous operation, the key components and related equipment in the nitrogen generator will inevitably age or be damaged due to wear, corrosion or other factors, which will directly cause the nitrogen generator purity to fail to meet the standard. Taking the nitrogen separation membrane as an example, if there is damage, the gas will leak, resulting in a significant reduction in the separation effect; if the separation membrane is blocked by impurities, the gas will not pass smoothly, which will also seriously affect the nitrogen purification process. In addition, as an important substance used to adsorb impurity gases in the nitrogen generator, the adsorption effect of the adsorbent will gradually decrease with the increase of use time. Once the adsorbent effect is poor and the impurity gas in the original gas cannot be effectively adsorbed, the purity of the final nitrogen will inevitably decrease. Therefore, in order to ensure the normal operation of the nitrogen generator and the stable compliance of the nitrogen purity, it is particularly important to regularly carry out comprehensive maintenance and meticulous inspection of the equipment. During the maintenance and inspection process, once damaged parts are found, they should be replaced in time to ensure that the equipment is always in good operating condition.

Finally, the impact of external environmental factors on the purity of the nitrogen generator should not be underestimated. During the operation of the nitrogen generator, the external environmental conditions are not static, and the changes in these environmental factors often have an impact on the performance of the nitrogen generator and the purity of nitrogen that cannot be ignored. For example, when the ambient temperature is too high, some precision components inside the nitrogen generator may change their performance due to overheating, affecting the separation and purification of the gas; when the ambient temperature is too low, some gases may condense, which will also interfere with the nitrogen production process. An environment with excessive humidity may increase the moisture content in the raw gas, or cause condensation inside the equipment, thereby affecting the normal operation of the nitrogen generator and the purity of nitrogen. In view of this, when choosing the installation location of the nitrogen generator, these unfavorable external environmental factors should be fully considered and avoided as much as possible to create a relatively stable and suitable operating environment for the nitrogen generator, thereby ensuring the stability and reliability of the purity of the nitrogen produced by the nitrogen generator and meeting the actual needs of industrial production and other aspects.