Spiral-plate corrugated structured packing
A technology of structured packing and corrugated packing, applied in chemical/physical/physicochemical processes, chemical instruments and methods, chemical/physical processes, etc., can solve problems such as air friction and collision, increased operating costs, and gas phase kinetic energy loss
Inactive Publication Date: 2014-03-05
NANJING COLLEGE OF CHEM TECH
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Problems solved by technology
However, the gas phase flows asymmetrically in the structural unit of the fluid channel, and the friction and collision of the air flow are easily caused at the intersection of the channels, resulting in the loss of kinetic energy of the gas phase, increased pressure drop, and increased operating costs.
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[0008] The working process of the present invention is that the liquid phase is sprayed from the liquid distributor from the top and slides down along the corrugated packing, and is quickly stretched to form a film, and the gas phase flows upward from the bottom of the tower to contact the liquid countercurrent for mass transfer. Evolving into the inertial flow in the vortex flow field, from the enhanced membrane mass transfer to the spray mass transfer, the gas-liquid mass transfer process is effectively strengthened, and the mass transfer efficiency is greatly improved; and the operation elasticity of the spiral plate corrugated structured packing is higher than that of ordinary corrugated packing. The board is large and the operating range is wide.
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The invention relates to spiral-plate corrugated structured packing prepared from a metal material and belongs to the technical field of gas-liquid and liquid-liquid mass-transfer separation designs of oil refining, petrifaction, chemical engineering, light engineering and environment protection industries. The spiral-plate corrugated structured packing is mainly technically characterized in that the corrugated shape of conventional corrugated packing is changed from V into U, and a corrugated sheet is wound into spiral structured packing, so that flowing channels of gas fluid and liquid fluid are parallel and independent; liquid uniformly flows and is uniformly distributed on a whole packing layer interface, so that the distribution condition of the whole liquid in a tower is improved, and the surface of a liquid membrane can be further updated; under a condition that the specific area of the packing is not enlarged, the effective mass-transfer area is enlarged, so that the comprehensive performance of the packing is improved.
Description
Technical field: [0001] The invention relates to a spiral plate corrugated structured packing made of metal materials, which belongs to the technical field of gas-liquid, liquid-liquid mass transfer separation design in oil refining, petrochemical, chemical, light industry and environmental protection industries. Background technique: [0002] Corrugated structured packing is composed of many corrugated sheets with holes arranged in an orientation. When used for gas-liquid mass transfer operation, the liquid film formed by the liquid phase on the surface of the corrugated packing is different from the falling film on the wall surface of the traditional structured packing or wet wall tower. The liquid film formed by the flow is very different: the latter has only one gas-liquid contact surface, and the other side of the liquid film is the liquid-solid contact surface, which can be called a single-sided mass transfer liquid film. The flow is generally laminar flow, and the exi...
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IPC IPC(8): B01J19/30
Inventor 周灵丹季锦林汤立新杨宇许宁蒋丽芬
Owner NANJING COLLEGE OF CHEM TECH
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