The design of the internal structure of the adsorber:
The design of the internal structure of the adsorber includes the determination of the bed layer and various auxiliary structures, such as the design of the upper and lower filter, the guide valve, the pressing mechanism, the gas distribution device and so on.
The adsorber can usually be divided into single bed and double bed, and the structure is shown in figure 3. Both the upper and lower vent of the two structures are equipped with filter and gas distributor. The single-layer bed structure is equipped with a screen hole plate and a cylinder compressing device on the molecular sieve adsorber. When the adsorber is working, the cylinder piston generates a lower thrust by differential pressure and compresses the molecular sieve through the screen hole plate, it avoids the phenomena that the molecular sieve is boiling and flowing and the filter screen is damaged due to the excessive airflow, thus prolonging the life of the molecular sieve and ensuring the normal operation of the adsorber.
The structure is simple and reliable, and it can well overcome the phenomenon of boiling dust of molecular sieve within the allowable stroke of cylinder piston. While double-layer bed structure is set with double-layer stuffing, adding compressing stuffing on the upper part of the molecular sieve, and the two are separated by the wire mesh. When the adsorber is working, it compresses the wire mesh sieve relying on the weight of compressing stuffing, it also plays the role of single bed compressing device, which is not limited by the travel mentioned above, but under the circumstances of improper design or Assembly, during operation, the phenomenon of mixing molecular sieve and compressing stuffing caused by the inclination of intermediate wire mesh will occur, which will lead to the intensified wear and tear of molecular sieve.
