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

Claim 7:
8. The separation device with two-stage gas-liquid mixture and conical spiral fields according to claim 1, wherein the conical degasser is configured to perform the gas-liquid efficient separation in the conical spiral fields, the variable-pitch whirlpool-making blade is arranged in the rotational flow forming pipe section of the conical separation pipe; the wedge-shaped separation groove is provided in the pipe wall of the rotational flow forming pipe section so as to fix the conical separation pipe with the whirlpool-making liquid inlet pipe by circumferential welding; inner walls of both the rotational flow separating pipe section and the axial flow liquid collecting pipe section are respectively an inverted conical surface and a cylindrical surface; a cross section of a flow channel of the rotational flow separating pipe section is rapidly shrunk to enable an angular momentum of the rotating speed of the hollow-core type two-phase spiral flow to be increased; a rotating speed of the hollow-core type two-phase spiral flow is further increased; a liquid phase in the conical spiral fields with high-speeds is gradually thrown to a pipe wall of the rotational flow separating pipe section and rotates downwards to flow to the axial flow liquid collecting pipe section; and a gas phase is continuously transported to a center of the rotational flow separating pipe section and rises reversely to converge into a long and thin inverted-cone-shaped gas flow.