Jet current atomizing mixer for bioreactor

Abstract

The invention relates to a jet spray hybrid bioreactor, comprising a reducer pipe, a ledger plate, a jet spray muzzle, and a compressed air ingress pipe, which is characterized in that the reducer pipe is specially designed to have a dispersion cavity, a hybrid cavity, and a jet spray cavity in sequence from the top down. A plurality of liquid reactant suction inlets are provided at the intersection of the hybrid cavity and the jet spray cavity and distributed evenly and circumferentially. The intersection angle between the axial lead of a hole and the axial lead of the reducer pipe is 45-90 degrees. A plurality of liquid reactant suction inlets are provided on the ledger plate. The ledger plate and the reducer pipe, and the ledger plate and top end of the jet spray muzzle are connected respectively by screw threads. The outlet of the jet spray muzzle is extended deeply into the reducer pipe. The lower end of the jet spray muzzle is connected with the compressed air ingress pipe. The invention has the advantages that the invention makes use of the pumping action of high speed airflow to automatically absorb in liquid reactants, thus realizing multiple-angle stirring, high efficiency and energy saving, without dead flow zone, and the structure is simple and the operation control is convenient.

Description

technical field [0001] The invention relates to the field of design and manufacture of bioreactor agitation devices, in particular to a novel high-efficiency and energy-saving jet atomization mixer for bioreactors that uses compressed air as the main energy source for atomization, mixing and circulation. Background technique [0002] At present, there are two types of bioreactors: mechanical stirring type and air lift type. Patent CN200420054260.9 "reflux type high-efficiency stirring paddle" provides a mechanical stirring device, which has a complex structure, high energy consumption, and difficult disinfection and sterilization; patent 200420081413.9 "external circulation airlift bioreactor with mixing device", US6174720 "Modified "bioreactor" (improved bioreactor), JP7177873 "Bioreactor" (bioreactor) all use air force to stir, the reactor structure is simple, there is no mechanical stirring system, compressed air is its single energy source, energy consumption is low, and...

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Problems solved by technology

Patent CN200420054260.9 "reflux type high-efficiency stirring paddle" provides a mechanical stirring device, which has a complex structure, high energy consumption, and difficult disinfection and sterilization; patent 200420081413.9 "external circulation airlift bioreactor with mixing device", US6174720 "Modified "bioreactor" (improved bioreactor), JP7177873 "Bioreactor" (bioreactor) all use air force to stir, the reactor structure is simple, there is no mechanical stirring system, compressed air is its single energy source, energy consumption is low, and sterilization Disinfection is relatively simple, but the main problems are that the height and diameter of the reactor are relatively large, resulting in high gas supply pressure, difficult operation, poor gas-liquid mixing effect, and dead angles in the reactor, which directly affect its popularization and application.

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