A membrane gas separator with a built-in valve and the method of its opening and closing

A membrane gas separator with a built-in valve wherein the membrane separator contains:

• inlet chamber used to feed an inlet medium from the inlet manifold;
• hollow selective fibres to feed the inlet medium and for permeation of the separated component through the fibre walls to a flushing space with fibres interconnecting the inlet chamber and an outlet chamber;
• the outlet chamber where pneumatic outlets of hollow fibres lead through an outlet wall and which are used to feed a final product to a outlet manifold;
• central core element with a central space pneumatically interconnecting the outlet chamber with the flushing space through the flushing nozzle to feed the flushing medium to the flushing space;
• the flushing space surrounding hollow fibres to remove the separated component from the outer surface of fibres using the flushing medium, characterized in that the membrane gas separator contains:
• the built-in combined valve located in the outlet chamber and in the central space wherein the built-in combined valve contains the throttling section and the sealing section where:
• the throttling section is located at the pneumatic connection of the outlet chamber with the inner space of hollow fibres in order to ensure reduced backflow of the final product from the outlet manifold through the outlet chamber to the inner space of hollow fibres when no inlet medium flows through the separator, and the throttling section in the outlet chamber separates the interspace pneumatically connected with the inner space of hollow fibres, and the sealing section is located at the pneumatic connection of the interspace in the outlet chamber and the central space to stop the flushing media flow from the outlet chamber through the central space to the flushing space when no inlet medium flows through the separator, and the throttling part is located at the pneumatic connection between the interspace and outlet chamber to ensure opening of the sealing section by the final product flow creating a suitable flow resistance;
• and the membrane gas separator further contains the check valve located at the pneumatic connection between the inlet manifold and the inlet chamber to stop the backflow of the inlet medium and the final product from the inlet chamber, fibres and the outlet chamber back to the inlet manifold when no inlet medium flows through the separator.