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The necessity and function of buffer tank of nitrogen generator are explained in detail

2021-07-23 H:03:19
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In the nitrogen system, the buffer tank is air buffer tank and nitrogen buffer tank, which play a necessary role.

The following nitrogen generator manufacturers will explain in detail the necessity of these two nitrogen generator buffer tanks:

1. The necessity of air buffer tank is increased, and Ding Wei keeps the air supply pressure stable. The adsorption tower of nitrogen generator is switched every minute, and the acceleration time of each switch is as short as 1-2 seconds, so the gas consumption increases instantaneously. If there is no air buffer tank, the compressed air will directly enter the nitrogen generator, and the air purification system in front of the nitrogen generator will not be able to process a large amount of compressed air immediately. Therefore, a large amount of compressed air including water and oil directly enters the adsorption tower of nitrogen generator, which is bound to pollute the molecular sieve, shorten the service life of the molecular sieve, reduce the gas production rate and increase the user's use cost.

2. Necessity of nitrogen buffer tank: generally, it is not advisable for manufacturers to replace nitrogen buffer tank with nitrogen storage tank after nitrogen generator, or not to directly configure nitrogen storage tank, and it is necessary to configure nitrogen buffer tank separately. The nitrogen generator produces mixed gases of nitrogen of different purity. At the beginning and end of the nitrogen manufacturing process, the purity of nitrogen manufactured is not as high as that manufactured in the intermediate stage. In order to prevent the fluctuation of nitrogen purity, a nitrogen buffer tank must be equipped to stabilize the nitrogen output. In addition, according to the characteristics of PSA process, it needs fast pressure balance, fast exhaust and stable air flow. The nitrogen buffer tank adds nitrogen to the operating adsorption tower at the beginning of the nitrogen manufacturing process.

On the one hand, it reduces the consumption of compressed air and can quickly obtain nitrogen that meets the purity requirements. On the contrary, the use of nitrogen storage tank will make the pressure in the nitrogen storage tank fluctuate, on the other hand, it will also affect the purity of the nitrogen generator and the subsequent gas consumption.

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