Patent ID: 11872505
Assignee: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
Field: Chemical engineering (Chemistry)
Classification: CPC B  E | IPC B  E

Claim 6:
7. The separation device with two-stage gas-liquid mixture and conical spiral fields according to claim 1, wherein the whirlpool-making gas collector is configured to collect degassed gas flow through the lower gas collecting conical cover; the whirlpool-making liquid inlet pipe is obliquely arranged; a diameter of the whirlpool-making liquid inlet pipe is equal to a diameter of the uniform mixing flow pipe; the gas collecting horizontal pipe section of the gas collecting pipe is horizontally arranged; the gas collecting vertical pipe section of the gas collecting pipe, the conical separation pipe, the liquid outlet buffer pipe and the liquid outlet vertical pipe section of the liquid outlet pipe are coaxially arranged from top to bottom; the lower part of the gas collecting vertical pipe section connects together with the gas collecting pipe and the double-layer conical cover by circumferential welding;
the variable-pitch whirlpool-making blade is an integrated blade; an inner side surface of the variable-pitch whirlpool-making blade is fixed to an outer ring surface of the gas collecting pipe by circumferential welding; a cylindrical surface where an outer side surface of the variable-pitch whirlpool-making blade is located is in interference fit with an inner wall of the rotational flow forming pipe section; an included angle between a tangent line of an upper starting point of the outer contour line of the variable-pitch whirlpool-making blade and a horizontal plane is equal to an included angle between an axis of the whirlpool-making liquid inlet pipe and the horizontal plane; an included angle between a tangent line of a lower ending point of the outer contour line of the variable-pitch whirlpool-making blade and an axis of the conical separation pipe is equal to a taper of the conical surface where an outer ring surface of the upper flow guide conical cover is located; the whirlpool-making liquid inlet pipe is configured to make the gas-liquid uniform mixing flow tangentially flow into the variable-pitch whirlpool-making blade to form a high-speed rotating spiral flow; the upper flow guide conical cover is configured to form a hollow-core type two-phase spiral flow when the high-speed rotating spiral flow tangentially flows to the upper flow guide conical cover;
the double-layer conical cover includes the upper flow guide conical cover and the lower gas collecting conical cover; a taper of the conical surface where an inner ring surface and the outer ring surface of the upper flow guide conical cover are located is larger than that of a conical surface where the inner ring surface and the outer ring surface of the lower gas collecting conical cover are located; a top of the upper flow guide conical cover is connected with a lowest part of the variable-pitch whirlpool-making blade; and the lower gas collecting conical cover is integrally arranged at an upper part of a pipe cavity of the rotational flow separating pipe section.