Accumulator nitrogen inspection and filling Attention Accumulator as a nitrogen high compression container, in the maintenance and storage, should pay attention to safety. Only nitrogen can be filled. When the ambient temperature is 20℃/68℉ inch, the standard air pressure of the accumulator is 55kg/cm2/780PSL, and nitrogen cannot be overfilled. When filling the accumulator with nitrogen, use a pressure gauge. When filling the accumulator with nitrogen, ensure that the accumulator body is intact and the plug cover is fully tightened. Check whether the pressure gauge switch and relief valve are completely closed; Unscrew the plug on the accumulator, and then tighten the charging valve; Check whether the O-ring on the connector is installed properly, remove the plug of the accumulator, connect it to the three-way valve, and tighten the nut; Connect the connector with the pressure gauge three-way valve; Slowly loosen the charging valve, the pressure gauge can show the accumulator pressure; When the air pressure is normal, close the valve clockwise. If the pressure is high, the relief valve can be adjusted repeatedly to reduce the pressure. Slowly unscrew the relief valve to release the gas remaining in the three-way method; KCN carbon nitrogen purification equipment Remove pressure gauge, tighten nut and plug. Method of Filling the accumulator with nitrogen Tighten the hose connector and nut, install it on the nitrogen cylinder, and then connect the hose. After unscrew the pressure gauge plug, connect it to the inflation hose, unscrew the accumulator nut, close the charging valve, check whether the O-ring is installed on the connector, remove the plug, tighten the nut of the connector, confirm whether the connector is connected to the pressure gauge, then loosen the charging valve of the accumulator, open the nitrogen cylinder switch counterclockwise, and charge according to the accumulator charging pressure parameter table. Turn off the nitrogen cylinder switch clockwise, tighten the accumulator charging valve, loosen the relief valve, and release the residual gas in the hose. After disassembling the inflation hose, three-way valve and coupling, tighten the nut emergency plug of the automatic nitrogen protection atmosphere push plate kiln. Carbon molecular sieve is a new type of adsorbent, which is widely used in air separation to produce nitrogen-rich gas as the preferred adsorbent of pressure swing adsorption air separation technology (nitrogen machine). In the next few years, carbon molecular sieve products will develop in the direction of high index, high strength, high pile density, low index and low grade products will be eliminated, air separation equipment will tend to miniaturize, put forward higher requirements for the molecular sieve industry, the domestic market mainly uses low-grade carbon molecular sieve, the annual total demand is more than 2000 tons, with the continuous development of our economy, The scale of industry, especially the chemical industry, continues to expand, and the demand level for carbon molecular sieve will increase year by year.

With the continuous maturity of pressure swing adsorption technology, the application field of nitrogen machine is more and more broad, the international demand for carbon molecular sieve is also growing, the demand in developed countries such as Europe and the United States has grown steadily every year, in recent years, the demand in developing countries is growing by leaps and bounds, growing at a double rate every year, according to the analysis of international and domestic experts, Carbon molecular sieve industry shows the following development trends:

First of all, with the continuous expansion of the use of pressure swing adsorption nitrogen machine, the increasing demand for carbon molecular sieve, which will further promote the development of the industry, the next few years, this industry will become well-known from a rare industry.

Secondly, with the improvement of the depth of application, the requirements for nitrogen production, nitrogen recovery, pile density, compressive strength and other indicators of carbon molecular sieve are getting higher and higher, and further improving product performance indicators will be the general trend of the future development of this industry.

Third, because carbon molecular sieve is the main component of the pressure swing adsorption nitrogen machine, the cost accounts for more than 70% of the entire equipment, therefore, reducing the cost will be an important condition to promote the development of the industry. Nitrogen machines and many air separation equipment manufacturers should also follow such market development laws. However, the ultimate victory is the fundamental victory of nitrogen machine enterprises. Nitrogen has a wide range of uses in the pharmaceutical industry, such as pure nitrogen isolation in biological engineering, nitrogen protection in synthetic drugs, pneumatic transportation, nitrogen filling in preparation production and so on. The purity of process gas is very important to improve the yield of electronic products, pharmaceutical products, etc. Therefore, microelectronic devices, pharmaceuticals, biotechnology products and instruments have very strict requirements for process gas purity. Nitrogen requirements for pharmaceutical production Used for injection potting, nitrogen produced by the nitrogen machine is required to be free of dust and heat sources; The purity of nitrogen is required to reach 99% ~ 99.99%; Nitrogen is required to maintain constant pressure supply in the production process to ensure the normal operation of production. The pressure of nitrogen in the nitrogen room will change due to the state of the steel, and the crushing hammer should be put down before inflation, and the steel fiber should be completely flattened. Because the steel fiber will be affected by the piston suddenly drop, so the steel should be removed and then inflated. Because the nitrogen in the nitrogen chamber is under high compression, you must release the nitrogen before replacing the bolts in the whole body.