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Self-mixing floating microalgae reactor control method

A control method, reactor technology, applied in the directions of microorganism-based methods, bioreactor/fermenter combinations, specific-purpose bioreactors/fermenters, etc., can solve the problems of insufficient mixing, unstable wave energy, oxygen transfer Problems such as small prime coefficient

Pending Publication Date: 2022-08-05
NINGBO INST OF DALIAN UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Floating reactors can generally successfully cultivate microalgae, but there are problems with unstable wave energy and insufficient mixing
Under wave conditions, the oxygen mass transfer coefficient in the small floating reactor is small, which is quite different from the mass transfer efficiency of the traditional photobioreactor. However, the outdoor cultivation of the floating reactor sometimes leads to insufficient mass transfer due to too small wave motion, and the dissolved High oxygen accumulation, resulting in inhibited cell growth
Based on the above problems, a self-mixing floating reactor was designed to solve the problem of insufficient mixing caused by unstable wave energy.

Method used

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Embodiment 1

[0044] like Figure 1-3 As shown, this embodiment provides a self-mixing floating microalgae reactor, including: a reactor box 12, which has a accommodating space. This embodiment does not limit the shape of the accommodating space, which can be changed according to actual reaction needs. setting, the culture medium is stored in the accommodating space; the driving unit is a power output device, and the driving unit is at least partially installed in the reactor box 12; the wave making unit, which is connected with the driving unit and is driven by the driving unit, can be The accommodating space of the reactor box 12 periodically reciprocates and forms a horizontal artificial surge in the culture solution.

[0045] Compared with the prior art, a wave-making unit is installed in this embodiment to form an artificial surge. When the natural wave energy is unstable and the mixing is insufficient, an artificial surge can be added, thereby effectively improving the mixing performa...

Embodiment 2

[0047]In addition to the technical contents described in the foregoing embodiments, this embodiment further defines the drive unit, which further includes: a drive motor 2 . A feasible installation method is that the drive motor 2 is installed on the reactor box through the motor base 4 12 The inner wall surface; also includes a crank-slider mechanism, which refers to a plane connecting rod mechanism that uses a crank and a slider to realize the mutual conversion of rotation and movement. In the crank-slider mechanism, the component that forms the moving pair with the frame is the slider, and the component that connects the crank and the slider through the rotating pair is the connecting rod. In this embodiment, the crank 5 is connected to the drive motor 2, and the slider 10 is connected to the The wave units are connected and can reciprocate periodically on the slide rail 11 , and the slide rail 11 is fixed on the bottom of the reactor box 12 .

[0048] In addition, it shoul...

Embodiment 3

[0050] In addition to the technical contents described in the foregoing embodiments, this embodiment further defines the crank-slider mechanism, which further includes: a first coupling 3 that rotatably connects the rocker 6 and the crank 5 The second coupling 9, the second coupling 9 rotatably connects the rocker 6 with the wave-making unit, and through the first coupling 3 and the second coupling 9, the output shaft of the drive motor 2 rotates in the first The second coupling 9 is converted into the reciprocating linear motion of the wave-making unit along the horizontal direction.

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Abstract

The invention provides a control method of a self-mixing floating microalgae reactor, which comprises a wave making unit connected with a driving unit and driven by the driving unit, and the wave making unit can periodically reciprocate in an accommodating space of a reactor box body (12) and form a horizontal surge in a culture solution; the acceleration sensor is arranged in the reactor box body (12) and is used for monitoring the motion response of the reactor in real time; the control unit is used for controlling the driving unit according to a signal of the acceleration sensor; the method comprises the following steps: detecting whether the marine environment generates enough shaking acceleration for the self-mixing floating microalgae reaction or not; when the shaking acceleration is insufficient, the driving unit is started, artificial wave making is conducted, the structure is simple, and the problem of insufficient mixing caused by unstable wave energy is effectively solved.

Description

technical field [0001] The invention relates to the technical field of bioreactors, in particular to a novel floating photobioreactor and a control method thereof. Background technique [0002] Bioreactor refers to a reaction system in which naturally occurring microorganisms or microorganisms with special degradation ability are used to inoculate liquid or solid phases. Unlike conventional bioreactors, liquid mixing in floating reactors is caused only by its hydrodynamic motion in response to waves, which is influenced by wave conditions (wave height and wave period), structure, and culture depth. [0003] The so-called floating photobioreactor refers to a photobioreactor floating on the water surface. Compared with the reactor on land, the floating photobioreactor has the advantages of not occupying land area, using the surrounding water body for cooling, using wave energy for mixing, and using free ocean space, so the system can reduce mixing energy consumption and its ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12M1/36C12M1/34C12M1/00C12Q3/00C12N1/12C12R1/89
CPCC12M21/02C12M27/16C12M41/00C12Q3/00C12N1/12Y02A40/80
Inventor 许智静赵云鹏贾广臣
Owner NINGBO INST OF DALIAN UNIV OF TECH
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