In the pressure swing adsorption device, molecular sieve particle material, during the filling process, it is impossible to absolutely strong pack. During the operation of the adsorption tower, the effect of air flow may be present in the molecular sieve sinking. In today's compression devices, there are generally cylinder compression, compression springs (some between coconut shell pads, also belong to this type of compression mechanism) and air bag compression three structures.

The spring compression force F = K(x0-x), compression force and stroke are inversely proportional, that is, the spring compression mechanism, it must find two (minimum pressure, compressive strength and molecular sieve compression), and then according to these two points to select the spring stiffness and initial compression, stroke, there is a slight difference, there is a possibility of being crushed or crushed without problems with a molecular sieve. But the compression stroke of the spring can be controlled automatically.

Air bag compression, generally used in the case of no cylinder or spring, it has some disadvantages: 1 large bag, work can not be monitored, aging 2, the material of the air bag itself; But relative to the first two compression devices, it has many advantages, it is urgent mechanism can be in irregular shape in some special occasions.

Our company adopts a cylinder pressing device, and the utility model has the advantages of:

Piston area A, F = PS and adsorption pressure and cylinder pressure, independent of other factors, in the pressure swing adsorption process, when the adsorption pressure is certain, the area of the piston is fixed in the manufacturing is completed, so the cylinder pressure compression force does not change with the stroke.

B, the stroke of the cylinder can be measured or sensed, and the alarm set point can be reported in advance.

C, the required gas in the cylinder is taken directly from the adsorption tower and the adsorption tower can work at any time and synchronously.

Our company adopts cylinder cylinder, piston, transmission rod, guide rod and alarm device, etc.