Flow guide device

Abstract

The invention discloses a flow guide device, which contains a first multilayer flow deflector with inner and outboard connection points and a second multilayer flow deflector with inner and outboard connection points. The inner and outboard connection points of the first multilayer flow deflector are respectively connected with first inner and outboard connecting lines. The inner and outboard connection points of the second multilayer flow deflector are respectively connected with second inner and outboard connecting lines. When the flow guide device is placed in a photobioreactor for diversion, the first multilayer flow deflector and the second multilayer flow deflector form predetermined angles of inclination relative to the horizontal direction by pulling upwards the first outboard connecting line and the second outboard connecting line or by putting down the first inner connecting line and the second inner connecting line. The inclination angles of the flow deflectors can be properly adjusted according to the sunlight frequencies required during different culture periods of photosynthetic microbes. In addition, the flow guide device is convenient to clean, therefore avoiding problems such as bacterial infection caused by incomplete cleaning.

Description

Technical field [0001] The invention relates to a diversion device for an airlift reactor, in particular to a method to increase the vertical and horizontal movement of the culture inside the photobioreactor to make it fully mixed, thereby increasing the internal culture A guide device for the opportunity to see light on the light-receiving surface. Background technique [0002] Photosynthetic microorganisms or plant cells can use solar energy, water and simple minerals to synthesize organic matter, hydrogen, methane and other forms of inorganic matter. Microalgae is one of the typical representatives. It is a kind of small individual photoautotrophic single-celled organisms, which has the characteristics of wide distribution, wide variety, high photosynthetic efficiency, fast growth, and strong adaptability. CO fixed by microalgae each year 2 It accounts for about 40% of the global net photosynthetic output. In addition, it is rich in high-value natural pigments such as esters,...

AI Technical Summary

Problems solved by technology

[0006] However, the above-mentioned photobioreactor disclosed in U.S. Patent No. 6,509,188 B1 has defects such as difficult cleaning and unadjustable

On the one hand, adding fixed horizontal and vertical deflectors inside the photobioreactor greatly increases the difficulty of cleaning the reactor. Due to the obstruction of the horizontal deflectors, the lower surface of the horizontal deflectors and the longitudinal deflectors Both are difficult to clean, which increases the probability of bacterial contamination during the cultivation of photosynthetic microorganisms; on the other hand, photosynthetic microorganisms require different light frequencies in different cultivation periods, and fixed horizontal and vertical deflectors cannot adjust this. effect, with certain limitations

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