CN215517424U

CN215517424U - Algae cultivation system with growth monitoring system

Info

Publication number: CN215517424U
Application number: CN202120357861.0U
Authority: CN
Inventors: 卢星宏
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-09
Filing date: 2021-02-09
Publication date: 2022-01-14
Anticipated expiration: 2031-02-09

Abstract

An algae cultivation system with a growth monitoring system is disclosed, comprising: the device comprises a photosynthetic reaction unit, a culture unit, a harvesting unit and an oxygen discharging device, wherein the photosynthetic reaction unit is provided with a light transmitting coil pipe, the culture unit is provided with an adjusting tank, the inside of the adjusting tank is partitioned into a curved flow channel through a plurality of partition plates, the harvesting unit is used for collecting part of algae in a culture solution, and the oxygen discharging device is used for discharging oxygen in the culture solution and pumping dead algae away from the oxygen discharging device; and a growth regulation control system for controlling growth factors using the detected data, such as: the temperature is increased and decreased, nutritive salt in various laboratory stages is added, the growth state is observed, pressurization is carried out, carbon dioxide is added, and redundant oxygen is eliminated.

Description

Algae cultivation system with growth monitoring system

Technical Field

The application relates to an algae cultivation system, in particular to an algae cultivation system with a growth monitoring system, wherein a closed photobioreactor is used for industrial cultivation after experimental data are collected in industrial production.

Background

Algae can effectively utilize light energy, carbon dioxide, water and inorganic salt to synthesize protein, fat, carbohydrate and high value-added bioactive substances, and has extremely high light conversion nutrient utilization efficiency, so that the algae has stronger growth potential than higher plants, and the culture of the algae is widely regarded.

At present, the large-scale industrial production of algae mostly adopts an open pond type, and the production mode has the problems of unstable production, overhigh cost, easy pollution, uneven light receiving of algae, low light energy utilization rate, difficult temperature adjustment caused by different growth environments, large-scale death of algae, low culture efficiency, difficult research of growth process, incapability of finely researching death and growth process, and the like. Thus limiting the development of the algae production and algae biotechnology industries. In recent years, scholars at home and abroad carry out a series of researches on the problem, and particularly, researches on efficiently culturing algae by using a photoreactor have achieved certain results. Currently, the typical photobioreactors include the following: tubular reactors, plate reactors, column reactors, and the like. The reactors show good development prospects in the aspects of optimal control and yield improvement, but the reactors have problems in practical application, such as too high growth cost, difficulty in controlling growth conditions of algae, low yield, easiness in generating dead algae and the like, and difficulty in data combination with the minimum growth conditions of laboratories.

For the reasons mentioned above, the disadvantages of the existing algae cultivation system are caused, and how to overcome the above disadvantages by improving the system intelligent automatic control to change the design and redesign and adjust the cause and structure is one of the important issues to be solved in this field.

SUMMERY OF THE UTILITY MODEL

The technical problem that this application will solve lies in, to current closed type algae breeding device output too low, internal growth pressure can't be controlled, be difficult to control algae growth condition under various extreme environment, can't effectively utilize the growth optimum data to reach internal nutrition supply and lead to the output low, laboratory research production factor is effectively applied to industrial production completely, hardly observes the shortcoming of studying why it dies and improves.

In order to solve the above technical problem, one of the technical solutions adopted by the present application is to provide an algae cultivation system with a growth monitoring system, which includes:

a photosynthetic reaction unit, wherein the photosynthetic reaction unit is provided with a light-transmitting coil pipe, the light-transmitting coil pipe is provided with a water inlet and a water outlet, a culture solution for culturing algae enters the light-transmitting coil pipe from the water inlet, and is discharged from the water outlet after photosynthesis is carried out in the light-transmitting coil pipe, and the photosynthetic reaction unit is also provided with a light source device for irradiating light rays on the light-transmitting coil pipe so as to provide light rays required by photosynthesis of the algae in the culture solution in the light-transmitting coil pipe;

the culture unit is provided with an adjusting tank, a plurality of first partition plates and a plurality of second partition plates, wherein the first partition plates and the second partition plates are arranged in the adjusting tank, an inlet end and an outlet end can be defined at two ends of the adjusting tank in the longitudinal axis direction, the first partition plates and the second partition plates are arranged in the adjusting tank along the longitudinal axis direction in a mutually staggered and mutually spaced mode, so that the inner part of the adjusting tank is divided into a curved flow channel which is connected between the inlet end and the outlet end, and the flow speed of a culture solution in the flow channel of the adjusting tank is slowed down and gradually cooled;

a harvesting unit connected to the outlet end of the culture unit for performing a harvesting procedure to harvest a portion of the algae in the culture fluid;

a pressurized delivery device connected to the outlet end of the recovery unit;

the oxygen discharging device is provided with an oxygen discharging cylinder and a liquid collecting cylinder connected to the lower end of the oxygen discharging cylinder, an oxygen discharging pipe is arranged in the center of the oxygen discharging cylinder, an outlet of the oxygen discharging pipe is positioned at the upper end of the oxygen discharging cylinder, a liquid inlet is formed in one side surface of the oxygen discharging cylinder and is connected with the pressurizing and conveying device, the culture solution flows into the liquid collecting cylinder after being sprayed into the oxygen discharging cylinder through the liquid inlet, and oxygen contained in the culture solution is discharged out of the oxygen discharging cylinder through the oxygen discharging pipe;

the pressure control device is connected with the outlet of the oxygen discharge pipe and used for generating a vacuum suction force to pump the oxygen discharged by the oxygen discharge pipe and dead algae in the culture solution out of the oxygen discharge device;

a growth regulation control system comprising: the illumination sensor is used for detecting the illumination intensity of the photosynthetic reaction unit and is linked with the light source device so as to control the illumination intensity of the photosynthetic reaction unit; the temperature sensor is used for detecting the temperature of the culture solution in the photosynthetic reaction unit or the culture unit, and is linked with a temperature control device so as to adjust the temperature of the culture solution; the pressure sensor is used for detecting the pressure of the culture solution in the photosynthetic reaction unit and is linked with a pressure regulating device for controlling the pressure of the culture solution in the photosynthetic reaction unit; an oxygen concentration sensor and a carbon dioxide concentration sensor for detecting the oxygen concentration and the carbon dioxide concentration in the culture solution inside the photosynthetic reaction unit, wherein the oxygen concentration sensor and the carbon dioxide concentration sensor are respectively connected with an oxygen supplementing device and a carbon dioxide supplementing device for supplementing oxygen or carbon dioxide to the culture solution when the oxygen concentration or the carbon dioxide concentration in the culture solution is insufficient; and an algae growth monitoring device connected to the photosynthetic reaction unit or the culture unit for monitoring the growth of algae in the culture solution. And the nutrient salt automatic supply unit is connected with the photosynthetic reaction unit or the growth regulating unit and is used for regulating the growth of algae in the culture solution.

In a preferred embodiment of the present application, a plurality of first partitions are connected to one of two opposite sides of the first partition and a side wall of the adjustment groove is connected to the other side of the adjustment groove, and a first gap is formed between the two opposite sides of the second partition, and a second gap is formed between the side wall of the adjustment groove and a side of the first gap.

In a preferred embodiment of the present application, the volume of the regulating tank of the cultivation unit is equal to or greater than the volume of the photosynthetic reaction unit, and the residence time of the culture solution in the cultivation unit is not less than the residence time of the culture solution in the photosynthetic reaction unit.

In a preferred embodiment of the present application, the pressure control device has an air pumping device, the air pumping device has an air suction pipe and an air exhaust pipe, the air suction pipe is connected to the opening of the oxygen exhaust pipe, so as to exhaust the exhaust gas and dead algae from the oxygen exhaust pipe.

In a preferred embodiment of the present application, the growth regulation control system further comprises a nutrient salt sensor for detecting the concentration of nutrient salt in the culture solution.

In an embodiment of the present application, the illumination sensor can further be coupled to a sunshade device for controlling the illumination intensity of the photosynthetic reaction unit irradiated by the natural light.

In a preferred embodiment of the present application, the temperature control device includes a heating device and a cooling device; the heating device is a plurality of heaters, a plurality of heating pipelines, a plurality of heat-preservation coating films or a plurality of heat-preservation shells and is used for heating the culture solution when the temperature of the culture solution is too low, and the cooling device is a plurality of sprinkling pipes or spraying devices and is used for spraying cooling water or water mist on the photosynthetic reaction unit or the culture unit when the temperature of the culture solution is too high so as to reduce the temperature of the culture solution.

In a preferred embodiment of the present application, the pressure adjusting device includes a pressurizing pump disposed at an inlet end of the photosynthetic reaction unit, and a pressure relief valve disposed at the light transmitting coil or an outlet end of the photosynthetic reaction unit.

In a preferred embodiment of the present application, the algae growth monitoring apparatus comprises: a light-transmitting tube, wherein the center of the light-transmitting tube can be used for the culture solution to flow through; the isolation box body is coated outside the light transmission tube; and the image capturing equipment and the light supplementing device are oppositely arranged on two sides of the light transmitting tube.

In a preferred embodiment of the present application, the algae growth monitoring apparatus further comprises an inlet control valve and an outlet control valve for controlling the flow rate of the culture solution passing through the light-transmitting tube; and a lens assembly disposed between the image capture device and the light transmissive tube.

In a preferred embodiment of the present application, the automatic nutrient supplying unit is used for automatically monitoring, analyzing and supplying nutrient salt, so as to facilitate optimal data of growth, accelerate the formulation regulation in a laboratory, and be used for optimal control formulation of industrial production; the automatic feeding unit includes: a plurality of analysis alcohol boxes, a plurality of spiral stirrers, a plurality of weight measuring instruments, a plurality of funnels, a plurality of automatic control valves, a water quality filter, a water flow meter, a water flow controller, a cleaning drain valve, a water temperature controller and a speed control motor.

The harvesting unit is matched with detection data, harvesting and filtering can be automatically carried out, grown algae liquid is separated, the algae is taken out for use, and culture solution flows back after being sterilized.

One of the benefits of the embodiment of the present application lies in that the monitoring of the algae cultivation system by the algae growth monitoring device comprises: the method has the advantages that the illumination intensity, the temperature, the pH value, the internal pressure of the photosynthetic reaction device, the oxygen concentration, the carbon dioxide concentration, the nutrient salt concentration, the algae growth density and the algae size are continuously monitored to provide real-time detection, parameters such as death factors and the like are found, various control devices are connected, and environmental data conditions suitable for the algae growth can be modeled, so that the aims of intelligently realizing industrial mass production, improving the algae production efficiency, reducing dead algae and improving the quality are fulfilled.

For a better understanding of the nature and technical content of the present application, reference should be made to the following detailed description and accompanying drawings, which are provided for purposes of illustration and description only and are not intended to limit the present application.

Drawings

FIG. 1 is a schematic view of an embodiment of an algae cultivation system having a growth monitoring system according to the present application.

FIG. 2 is a block schematic diagram of a growth regulation control system employed in an algae cultivation system having a growth monitoring system according to the present application.

FIG. 3 is a schematic view of an embodiment of an algae growth monitoring apparatus as used herein.

FIG. 4 is a schematic view of an embodiment of an automated feeding unit as used herein.

Detailed Description

The following is a description of the embodiments of the "algae cultivation system with growth monitoring system" disclosed in the present application by way of specific examples, and those skilled in the art can understand the advantages and effects of the present application from the disclosure of the present application. The present application is capable of other and different embodiments and its several details are capable of modifications and variations in various respects, all without departing from the present application. The drawings in the present application are for illustrative purposes only and are not intended to be drawn to scale. The following embodiments will further explain the related art of the present application in detail, but the disclosure is not intended to limit the scope of the present application. In addition, the term "or" as used herein should be taken to include any one or combination of more of the associated listed items as the case may be.

Referring to fig. 1 to 4, an embodiment of the algae cultivation system 1 of the present application includes: the photosynthetic reaction unit 10, the cultivation unit 20, the harvesting unit 30, the pressure-feeding device 40, the oxygen-discharging device 50, a pressure-controlling device 60, the growth regulation control system 70, an algae growth monitoring device 79 in the growth regulation control system 70, and an automatic feeding unit 80.

The photosynthetic reaction unit 10 has a transparent coil 11, and both ends of the transparent coil 11 have a water inlet 101 and a water outlet 102. The translucent coil 11 is made of transparent tube (e.g., glass tube, acryl tube), the culture solution for culturing algae can enter the translucent coil 11 from the water inlet 101 and pass through the translucent coil 11 at a constant flow rate, and the algae in the culture solution can be subjected to photosynthesis in the translucent coil 11 to allow the algae to obtain nutrients and grow.

The upper end of the transparent coil 11 can be further provided with an adjusting input port 12, the adjusting input port 12 is used for an operator to add new nutrient solution or nutrient components required by algae cultivation, or is used for injecting carbon dioxide into the transparent coil 11 to supply gas required by algae photosynthesis. In addition, the photosynthetic reaction unit 10 can be further provided with a plurality of light source devices 13, and the light source devices 13 can be dimmable LED light emitting devices and can generate light with different wavelengths according to the requirement of cultivating algae species so as to enhance the photosynthesis of the algae. In addition, when the photosynthetic reaction unit 10 is installed outdoors, a sunshade 14 can be installed above the photosynthetic reaction unit 10 to control the intensity of the natural light irradiating the photosynthetic reaction unit 10.

The cultivation unit 20 is connected to an outlet end of the photosynthetic reaction unit 10, the culture solution passing through the photosynthetic reaction unit 10 enters the cultivation unit 20, the temperature of the cultivation unit 20 can be reduced, and the algae in the culture solution can perform a physiological regulation procedure in the cultivation unit 20 by controlling the flowing speed of the culture solution in the cultivation unit 20 and reducing or stopping the photosynthesis.

The culture unit 20 has an adjustment tank 21, and a plurality of first partition plates 22 and second partition plates 23 disposed in the adjustment tank 21, in this embodiment, the adjustment tank 21 is a rectangular tank body, and the adjustment tank 21 may be a closed tank body or an open tank body. The two ends of the regulating tank 21 in the longitudinal axis direction can define an inlet end 201 and an outlet end 202, the inlet end 201 of the regulating tank 21 is connected with the water outlet of the photosynthetic reaction unit 10 through a pipeline, and the culture solution can enter the regulating tank 21 from the inlet end 201 and then be discharged from the outlet end 202 of the regulating tank 21.

The plurality of first and second partition plates 22 and 23 are disposed in the regulation groove 21 in a staggered and spaced manner along the longitudinal axis direction of the regulation groove 21, and the plurality of first and second partition plates 22 and 23 commonly partition the inside of the regulation groove 21 into a curved flow passage 24. More specifically, in the present embodiment, the first partition boards 22 are substantially perpendicular to the longitudinal direction of the adjustment tank 21, one of the two opposite sides of the first partition boards 22 is close to one of the inner side walls of the adjustment tank 21, and the other side of the first partition boards 22 is spaced from the other side wall of the adjustment tank 21 or is provided with an opening, so as to form the first notch 221 for allowing the culture solution to pass through. The second partitions 23 are disposed between every two adjacent first partitions 22, and of the two opposite sides of the second partitions 23, one side corresponding to the first notch 221 is close to the inner side wall of the adjustment groove 21, and the other side corresponding to the first notch 221 is spaced from the inner side wall of the adjustment groove 21 or is provided with an opening, so as to form a second notch 231 through which water flows. Therefore, with the above arrangement, the space inside the regulating tank 21 is partitioned by the plurality of first and second partition plates 22 and 23 to form the zigzag-shaped bent flow path 24, so that the flowing distance of the culture liquid in the regulating tank 21 is increased and the flowing speed of the culture liquid is slowed down, thereby prolonging the residence time of the culture liquid in the regulating tank 21.

Specifically, the volume of the regulating tank 21 of the cultivation unit 20 of the present application is arranged to be larger than the volume of the photosynthetic reaction unit 10, and the residence time of the culture solution in the cultivation unit 20 is also arranged to be larger than the residence time of the culture solution in the photosynthetic reaction unit 10, and in the preferred embodiment of the present application, the volume of the regulating tank 21 may be arranged to be larger than the volume of the photosynthetic reaction unit 10 by more than several times. When the culture solution enters the regulating tank 21, it can pass through the regulating tank 21 at a slow flow rate and the temperature of the culture solution can be gradually lowered, and the culture unit 20 can slow down or stop the photosynthesis by the algae in the culture solution in the culture unit 20 by reducing the intensity of the illumination or isolating the light source. When the algae of the culture solution pass through the regulating tank 21, since the photosynthesis is stopped, the algae in the culture solution has a sufficient time to digest nutrients obtained in the previous photosynthetic reaction process and grow to a certain size and then further split, so that the amount of the algae to be propagated increases. Therefore, the cultivation unit 20 can serve as a buffer space after the culture solution is discharged from the photosynthetic reaction unit 10, and the growth volume of the algae is enlarged, so that the algae can grow in the photosynthetic reaction unit 10, and can further grow, divide and propagate in the cultivation unit 20 with larger volume, thereby improving the yield and efficiency of the algae cultivation system.

Harvesting unit 30 is connected to the outlet end of pressure delivery device 40, and outlet pipe 25 is disposed at the outlet end of pressure delivery device 40, so that the culture fluid discharged from outlet pipe 25 can pass through harvesting unit 30, and a part of algae in the culture fluid can be harvested by harvesting unit 30. In particular, the harvesting unit 30 of the present application only harvests a certain proportion of algae in the culture fluid during the harvesting process, so that the algae remaining in the culture fluid can grow again when the culture fluid is recycled to the photosynthetic reaction unit 10 by retaining a portion of the algae in the culture fluid passing through the harvesting unit 30. And the harvesting unit 30 controls the concentration of the remaining algae in the culture solution, so that the environmental conditions suitable for the growth of the algae can be created, and the production efficiency and the quality of the produced algae of the algae culture system can be improved.

A pressurized delivery device 40 is connected to the outlet end of recovery unit 30 for delivering the culture fluid exiting recovery unit 30 into oxygen removal device 50. pressurized delivery device 40 is an electrically powered pressurized pump and pressurized delivery device 40 has an inlet pipe 41 connected to the outlet of recovery unit 30 and connected to oxygen removal device 50 through an outlet pipe 42.

The oxygen-discharging device 50 is connected to the outlet pipe 42 of the pressurized transportation device 40, the culture fluid discharged from the harvesting unit 30 is pressurized by the pressurized transportation device 40 and then transported into the oxygen-discharging device 50, and an oxygen-discharging procedure is performed in the oxygen-discharging device 50 to reduce the oxygen content in the culture fluid. In this embodiment, the oxygen discharging device 50 includes an oxygen discharging tube 51 and a liquid collecting tube 52 connected below the oxygen discharging tube 51. The oxygen discharging cylinder 51 is cylindrical, an oxygen discharging pipe 54 and a hollow pipe 55 sleeved outside the oxygen discharging pipe 54 are arranged in the center of the oxygen discharging cylinder 51, the oxygen discharging pipe 54 and the hollow pipe 55 penetrate through the center of the oxygen discharging cylinder 51, the opening parts of the oxygen discharging pipe 54 and the hollow pipe 55 are positioned at the upper end of the oxygen discharging cylinder 51, and an expansion part 541 is formed at the bottom part of the oxygen discharging pipe 54.

A liquid inlet 53 is arranged at one side of the oxygen discharging cylinder 51, and the liquid inlet 53 is connected with the outlet pipe 42 of the pressurizing and conveying device 40, so that the culture solution can enter the liquid inlet 53 through the outlet pipe 42 and is input into the oxygen discharging cylinder 51 from the liquid inlet 53. In this embodiment, the liquid inlet 53 forms a nozzle, and the central axis of the liquid inlet 53 is parallel to the tangential direction of the circumferential cross section of the oxygen discharging cylinder 51, or forms an included angle smaller than 90 degrees, so that the culture solution can flow faster when passing through the liquid inlet 53, and enter the oxygen discharging cylinder 51 in a spraying or spraying state, and the liquid inlet 53 enters the oxygen discharging cylinder 51 along the tangential or oblique direction of the cross section of the oxygen discharging cylinder 51, so that the culture solution sprayed into the oxygen discharging cylinder 51 through the liquid inlet 53 is easy to form a vortex shape.

After the culture solution is sprayed into the oxygen discharging tube 51, oxygen and other gases in the culture solution can flow out of the oxygen discharging tube 54 to the outside of the oxygen discharging tube 51, and the liquid flows into the liquid collecting tube 52 below the oxygen discharging tube 51 due to gravity. The oxygen discharge pipe 54, the input port 58 and the opening at the upper end of the hollow pipe 55 are connected with the pressure control device 60 for generating vacuum suction force to draw out the gas discharged from the oxygen discharge pipe 54. In this embodiment, the pressure control device 60 has an air extracting device 61, and an air suction pipe 62 and an air exhaust pipe 63 connected to two ends of the air extracting device 61, one end of the air exhaust pipe 63 is connected to the oxygen exhaust pipe 54 and the opening of the hollow pipe 55, and the outlet of the air exhaust pipe 63 is connected to a collecting container 64. The pressure control device 60 is used to pump oxygen out of the oxygen cylinder 51, and to pump dead algae in the culture solution out of the oxygen cylinder 51. During the cultivation of algae, a part of algae will die, and the dead algae will be drawn out along with the air flow and discharged from the air outlet pipe 63 to the collection container 64 when the air inside the oxygen discharging cylinder 51 is pumped out by the pressure control device 60 because the dead algae have a light specific gravity.

Therefore, the number of dead algae in the culture solution can be reduced by the oxygen discharging cylinder 51 and the pressure control device 60, so that the dead algae is prevented from being adhered to the pipeline or the flow channel of the adjusting groove 21 to cause blockage, the produced algae product does not have foul smell generated by the dead algae, the product has aromatic smell of natural algae, and the purpose of improving the product quality is achieved.

The liquid collecting cylinder 52 is connected to the bottom of the oxygen discharging cylinder 51 and is used for containing the culture solution flowing down from the oxygen discharging cylinder 51, one side of the upper end of the liquid collecting cylinder 52 is provided with a side nutrient salt feeding port 521, and the side nutrient salt feeding port 521 can be used for exhausting air and also can be used for supplying or adding the culture solution for an operator. The bottom of the liquid collecting barrel 52 is connected to the bottom of the buffer tank 56 through a communication pipe 57 so that the culture liquid in the liquid collecting barrel 52 flows into the buffer tank 56 through the communication pipe 57. The buffer tank 56 functions as a buffer space for allowing the culture solution to enter the photosynthetic reaction unit 10, and the culture solution flowing out of the oxygen discharging device 50 first enters the buffer tank 56 and then enters the photosynthetic reaction unit 10 from the buffer tank 56, so that the algae in the culture solution can start photosynthesis again. In particular, the algae cultivation system according to the present invention can inject or add a new culture solution through the nutrient salt injection port 521 on the side of the liquid collecting tube 52, or can add a new culture solution from the harvesting unit 30 or the culture unit 20, in addition to injecting a new culture solution or filtered water through the adjustment injection port 12 on the upper end of the translucent coil 11.

In one aspect of the present application, the algae cultivation system 1 has a growth regulation control system 70, and the growth regulation control system 70 is mainly used for controlling the following algae growth conditions:

1. illuminance: when the illumination is too strong, the algae can be dead by too high radiant heat, and when the illumination is too weak, the growth rate of the algae can be reduced and even stopped.

2. Temperature: when the temperature is too high, the algae die without adapting to the high temperature, and when the temperature is too low, the growth rate of the algae is reduced.

3. pH value: when the pH value is too high or too low, the algae cannot be suitable for growth, the growth efficiency is reduced, and even the algae die.

4. Reactor pressure: when the internal pressure of the reactor is too high, the reactor is damaged and algae is lost.

5. Oxygen concentration: when the algae growth efficiency is high, the amount of produced oxygen is high, resulting in an increase in internal pressure. When the oxygen is insufficient, the oxygen supplying device 761 automatically supplies oxygen.

6. Concentration of carbon dioxide: when the carbon dioxide is insufficient, the growth rate of algae is reduced due to the reduction of the photosynthetic reaction efficiency, and the carbon dioxide supplement device 771 is required to supplement carbon automatically, as shown in fig. 1.

7. Nutrient salt concentration, various acid radical ion monitoring data: when the relative concentration of the nutritive salt is insufficient, the growth rate of algae is reduced, and the automatic nutrient supplement by the nutritive salt automatic nutrient supply unit 80 is monitored, as shown in fig. 1.

8. Density of algae: as shown in fig. 1, when the density of algae in the culture solution is too high, the growth rate is reduced and the ratio of dead algae is increased, as detected by the algae growth monitoring device 79, and the algae is automatically harvested by the harvesting unit 30.

As shown in fig. 1 and 2, the growth regulation control system 70 of the present application mainly includes a control device 71, and the control device 71 is connected to a light sensor 72, a temperature sensor 73, an acid-base value sensor 74, a pressure sensor 75, an oxygen concentration sensor 76, a carbon dioxide concentration sensor 77, a nutrient sensor 78, and an algae growth monitoring device 79.

Referring to fig. 1 and fig. 2, the illumination sensor 72 of the growth regulation control system 70 is used for detecting the illumination intensity of the photosynthetic reaction unit 10 and the cultivation unit 20, and linking the light source device 13 and the sunshade device 14 to control the illumination intensity received by the photosynthetic reaction unit 10 and the cultivation unit 20 to be suitable for the growth of algae. In this embodiment, the number of the light sensors 72 may be one or more, and the light sensors 72 can be disposed between the light source device 13 and the light-transmitting coil 11 for detecting the intensity of light irradiated on the light-transmitting coil 11 and the photosynthetic reaction unit 20.

The illumination sensor 72 can be linked with the light source device 13 and the sunshade device 14 to control the illumination intensity of the photosynthetic reaction units 10 and 20. When the light intensity of the light-transmitting coil 11 is too low, the light intensity can be increased by increasing the light intensity of the light source device 13 or turning on the sun-shading device 14 to increase the amount of incident natural light. When the light intensity is too low, the light intensity of the light-transmitting coil 11 and the culture unit 20 can be reduced by reducing the light intensity of the light source device 13, or turning off the sun-shading device 14, and by using the temperature reduction device 16.

In this embodiment, the temperature sensor 73 can be disposed on the transparent coil 11 of the photosynthetic reaction unit 10, or disposed on the inlet or outlet pipeline of the photosynthetic reaction unit 10, and in the adjusting tank 21 of the cultivation unit 20, for detecting the temperature of the photosynthetic reaction unit 10 or the culture solution of the cultivation unit 20. The temperature sensor 73 can be linked to a temperature control device to control the temperature of the culture solution so as to be suitable for the growth of algae. In this embodiment, the temperature control device includes a heating device 15 and a cooling device 16. Wherein, the heating device 15 may be: a heater 155 disposed at an inlet end of the photosynthesis reaction unit 10; or a covering heat preservation film 151 covering the upper part of the photosynthetic reaction unit 10; or a heat-insulating coating film 153 arranged outside the photosynthetic reaction unit 10; or a plurality of heating tubes 154 disposed on the lucent coil 11; or a heat insulating housing 522 covering the oxygen discharge device 50, the liquid collecting cylinder 52, or the buffer tank 56.

There are various embodiments of the cooling device 16, and in the embodiment shown in fig. 1, the cooling device 16 is a plurality of sprinkling pipes or spraying devices disposed outside the transparent coil 11. In addition, the cooling device 16 may also be a cold air discharge pipeline disposed outside the photosynthetic reaction unit 10; the cooling device 16 may be a wet curtain fan disposed on the side of the photosynthetic reaction unit 10; the cooling device 16 may be an air conditioning system installed outside the photosynthetic reaction unit 10 and facing the air outlet of the photosynthetic reaction unit 10; the cooling device 16 may be a ring/axial flow fan disposed on both sides of the photosynthetic reaction unit 10; the cooling device 16 can be used for supplying nutrition and cooling nutritive salt which is normally placed in a ground cave/a cold storage/a low-temperature place, and the photosynthetic reaction unit 10 is added when needed; the cooling device 16 can be a fog curtain cooling system placed on a roof, an equipment roof, a pipeline roof and a pool roof above the photosynthetic reaction unit 10; the cooling device 16 can be a pipeline at the bottom of the photosynthetic reaction unit 10 and a small-sized refrigerator system; the cooling device 16 may be an air pressure cooling pipeline for placing indoor air inlet, and the air pressure is used for cooling, when hot air flow enters a narrow channel from a wide channel, the pressure changes, and the temperature changes accordingly, so that the air flow changes before entering the indoor space.

The ph sensor 74 can be disposed at a suitable position of the photosynthetic reaction unit 10 or the cultivation unit 20, or the liquid collecting barrel 52, and the ph sensor 74 is used for detecting the ph of the culture solution. When the ph sensor 74 detects that the ph of the culture medium is too high or too low, acidic nutrient salt, alkaline nutrient salt, sodium bicarbonate or other substances capable of adjusting the ph can be put into the culture medium through the adjustment putting port 12, or carbon dioxide can be injected into the culture medium to adjust the ph of the culture medium.

The pressure sensor 75 is disposed at a suitable position of the photosynthetic reaction unit 10, and the pressure sensor 75 is used for detecting the pressure inside the transparent coil 11 of the photosynthetic reaction unit 10. The pressure sensor 75 can be linked with a pressure adjusting device, in this embodiment, the pressure adjusting device includes a pressurizing pump 17 disposed at the inlet end of the photosynthetic reaction unit 10, and a pressure relief valve 18 disposed at the outlet end of the light transmitting coil 11 or the photosynthetic reaction unit 10. When the pressure of the photosynthetic reaction unit 10 is too high, the pressure of the culture solution inside the photosynthetic reaction unit 10 can be increased by the pressurizing pump 17 or by injecting compressed air. On the other hand, when the pressure of the culture fluid in the photosynthetic reaction unit 10 is too low, the pressure can be released through the pressure release valve 18 to reduce the pressure in the photosynthetic reaction unit 10. In addition, the light transmitting coil 11 of the photosynthetic reaction unit 10 can be provided with a pressure control bypass pipe 19, the pressure control bypass pipe 19 is connected to the light transmitting coil 11 and the regulating groove 21, and the pressure control bypass pipe 19 is provided with a pressure control valve 191 for opening the pressure control bypass pipe 19 when the internal pressure of the light transmitting coil 11 is too high, so that the fluid in the light transmitting coil 11 directly flows into the regulating groove 21 to reduce the pressure.

The oxygen concentration sensor 76 and the carbon dioxide concentration sensor 77 can be disposed on the light transmitting coil 11 of the photosynthetic reaction unit 10, or disposed on the inlet end or the outlet end of the photosynthetic reaction unit 10, so as to detect the concentrations of oxygen and carbon dioxide dissolved in the culture solution in the photosynthetic reaction unit 10. The oxygen concentration sensor 76 can be linked to an oxygen supply device 761, and the carbon dioxide concentration sensor 77 can be linked to a carbon dioxide supply device 771. In this embodiment, the oxygen supplementing device 761 and the carbon dioxide supplementing device 771 are connected to the transparent coil 11 of the photosynthetic reaction unit 10 through pipes, and when the oxygen concentration is insufficient or the carbon dioxide concentration is insufficient, oxygen or carbon dioxide can be supplemented to the culture solution of the photosynthetic reaction unit 10 to control the concentration of oxygen and carbon dioxide in the culture solution to be maintained at a level suitable for photosynthesis performed by algae.

In this embodiment, the nutrient sensor 78 is disposed in the buffer tank 56 or at the inlet end of the photosynthetic reaction unit 10 for detecting the concentration of nutrient salt in the culture solution entering the photosynthetic reaction unit 10. In this embodiment, the buffer tank 56 can be provided with a side air vent 561 for putting the nutrient salt into the culture solution when the nutrient salt concentration of the culture solution is insufficient, so as to control the nutrient salt concentration of the culture solution.

In addition, this application can also supply nutritive salt, breed water, culture solution to each pipeline or the cell body of the algae cultivation system 1 of this application through automatic support unit 80 to reach the mesh of adjustment nutritive salt concentration temperature. The automatic feeding unit 80 is disposed at an inlet end of the feeding pipe 84, and the automatic feeding unit 80 includes: a plurality of analyzing alcohol boxes 8001, a plurality of spiral stirrers 8002, a plurality of weight meters 8003, a plurality of hoppers 8004, a plurality of automatic control valves 8005, a water filter 8006, a secondary water flow meter 8007, a secondary water flow controller 8008, a cleaning drain valve 8009, a water temperature controller 8010, and a speed control motor 8011. A feeding pipe 84, one end of the feeding pipe 84 is connected with a culture water source, and the other end is connected with a feeding port 58 which is arranged and communicated with the liquid collecting cylinder 52, and is connected with the adjusting feeding port 12, the nutrient salt feeding port 521 and the adjusting tank 21 through a communicating pipe 841; the inlet of the feeding pipe 84 is further provided with a solution spraying cloth filtering device 81, a feeding device 82 and a pressurizing pump 83, wherein the solution spraying cloth filtering device 81 is used for filtering the culture water source, the feeding device 82 is used for supplying nutrient salt, culture solution, algae and the like, and the pressurizing pump is used for conveying the water source, the culture solution and the culture water into the feeding pipe 84.

In this embodiment, the algae growth monitoring device 79 is disposed at the outlet end of the culture unit 20 for detecting the density of algae in the culture solution and the diameter of the algae, so as to determine the growth of the algae in the culture solution. The algae growth monitoring device 79 may be configured to be linked with the harvesting unit 30, and the algae growth monitoring device 79 may monitor whether the algae growth yield table in the culture solution has grown to a level that can be harvested, and when the algae growth yield table reaches the level that can be harvested, the harvesting unit 30 is activated to perform an algae harvesting procedure to harvest a part of the algae in the culture solution, so that the density of the algae in the culture solution is reduced. Therefore, the harvesting unit 30 can be matched with the detection data, automatically harvest and filter, separate the grown algae liquid, and take out the algae for use; sterilizing and refluxing the algae liquid. In particular, the number and location of the various sensors in the growth regulation control system 70 of the present application can be located at various locations as desired to provide an overall monitoring of various parameters of the various algae growth conditions within the system.

As shown in fig. 3, in the present embodiment, the algae growth monitoring device 79 is disposed on the bypass pipe 43 of the outlet pipe 42, and the algae growth monitoring device 79 includes: an isolation box 791, a light pipe 792, an image capturing device 793, a light supplement device 794, and a lens assembly 795. Wherein the isolation box 791 covers the outside of the light pipe 792, and can cover the main components of the algae growth monitoring apparatus 79 therein and isolate external light to reduce interference. Light-transmitting pipe 792 is for adopting glass or transparent acryl tube to make, light-transmitting pipe 792 connect in bypass pipe 43. In other embodiments not shown in the drawings, the light-transmitting pipe 792 can be connected to the cultivation unit 20 or the photosynthetic reaction unit 10 through a bypass pipe. The center of the light-transmitting tube 792 is hollow, and a culture solution can pass through the inside of the light-transmitting tube 792. The inlet end of the light-transmitting pipe 792 is provided with an inlet control regulating valve 797, and the outlet end is provided with an outlet control regulating valve 798 for controlling the flow rate of the culture solution passing through the light-transmitting pipe 792. And the outlet control regulating valve 798 is also connected with a sampling switch 7981 for sampling the culture solution to facilitate the analysis of the instrument.

The image capturing device 793 and the light supplement device 794 are disposed opposite to each other on both sides of the light transmissive tube 792, light emitted from the light supplement device 794 can pass through the light transmissive tube 792 to provide light required by the image capturing device 793, and the image capturing device 793 captures an image of the light transmissive tube 792 and transmits the captured image to a remote monitoring device (e.g., a computer) for analysis to observe the growth status of algae. In this embodiment, a lens assembly 795 can be further disposed between the image capturing device 793 and the light transmitting tube 792, wherein the lens assembly 795 has a function of condensing light or increasing image magnification to enhance the image capturing capability of the image capturing device 793. The lens group 795 can magnify the algae image at a high magnification, so as to facilitate effective monitoring of the algae growth.

In addition, the algae growth monitoring apparatus 79 is further provided with a plurality of sensor brackets 799, each of the sensor brackets 799 is provided with a light sensor 796, and the sensor brackets 799 are movably disposed inside the isolation box 791 at positions adjacent to the light transmission pipe 792, and can be manually or automatically adjusted in position and distance. The light sensor 796 may be a photo-resistor or a spectrum or color sensor for detecting the illumination or color spectrum of the culture medium in the light pipe 792.

The remote monitoring device can analyze the algae growth in the culture solution by the images captured by the image capturing device 793 and the colorimetric contrast of the culture solution analyzed by the optical sensor 796. When the chromaticity of the culture solution is used as a ratio to analyze the growth condition of the algae, the culture solution can show different colors when the algae grow to different stages, so that the remote monitoring equipment can analyze the color number of the color of the culture solution through software to judge the growth condition of the algae, for example: when the color number is 068 light green, the algae cultivation is not long. When the color number is 052 pure green, the algae production state is good, and the harvesting stage can be prepared. When the color number is 026 dark green, the algae production is near the peak value and the harvesting should be carried out.

In addition, the algae growth monitoring apparatus 79 can also analyze the growth and density of algae in the culture solution inside the light-transmitting tube 792 by analyzing the transmittance of the light generated by the light supplement device 794 through the light-transmitting tube 792. In addition, in other embodiments of the present application, the algae growth monitoring apparatus 79 can also capture the image with high magnification through the image capturing device 793, and directly analyze the density of the algae in the culture solution and the size of the algae through an image analysis method, so as to achieve the purpose of determining the growth condition of the algae. Therefore, the present application can monitor the growth of algae by the algae growth monitoring device 79 to determine whether the growth of algae is normal or to determine the timing of harvesting algae.

In particular, the algae growth monitoring device 79 may be disposed at a different location than the outlet of the cultivation unit 20, such as: is disposed at the inlet end, the outlet end, or the middle position of the transparent coil 11 of the photosynthetic reaction unit 10 for monitoring the growth of algae at different positions of the photosynthetic reaction unit 10.

This device all adds filter equipment melt-blown cloth as filtration to external exhaust end. The device is characterized in that a filtering device (such as non-woven fabric and melt-blown fabric) is additionally arranged at each air inlet to filter air, and a filtering device (such as filter cotton and active carbon) is additionally arranged at an external water inlet of the device.

The outside of the device is also provided with a monitoring system, which comprises the traditional audio-video monitoring, alarm monitoring and thermal imaging monitoring, and is beneficial to visually observing and controlling the growth condition of algae.

One of the benefits of the embodiment of the present application lies in that the monitoring of the algae cultivation system by the algae growth monitoring device comprises: the method is characterized in that parameters such as illumination intensity, temperature, pH value, internal pressure of the photosynthetic reaction device, oxygen concentration, carbon dioxide concentration, nutrient salt concentration, growth density of algae, size of algae and the like are linked with various control devices, so that conditions suitable for growth of the algae can be modeled, and the aims of improving the production efficiency of the algae, reducing dead algae and improving the quality are fulfilled.

The disclosure is only a preferred embodiment of the present application and is not intended to limit the scope of the claims, so that all equivalent technical changes made by using the contents of the specification and the drawings are included in the scope of the claims.

Claims

1. An algae cultivation system with a growth monitoring system, comprising:

the culture unit is provided with an adjusting tank, a plurality of first partition plates and a plurality of second partition plates, wherein the first partition plates and the second partition plates are arranged in the adjusting tank, an inlet end and an outlet end can be defined at two ends of the adjusting tank in a longitudinal axis direction, the first partition plates and the second partition plates are arranged in the adjusting tank along the longitudinal axis direction in a mutually staggered and mutually spaced mode, so that the inner part of the adjusting tank is divided into a curved flow channel which is connected between the inlet end and the outlet end, and the flow speed of a culture solution in the flow channel of the adjusting tank is reduced and gradually cooled;

a pressurized delivery device connected to the outlet end of the recovery unit;

a growth regulation control system comprising: the illumination sensor is used for detecting the illumination intensity of the photosynthetic reaction unit and is linked with the light source device so as to control the illumination intensity of the photosynthetic reaction unit; the temperature sensor is used for detecting the temperature of the culture solution in the photosynthetic reaction unit or the culture unit, and is linked with a temperature control device so as to adjust the temperature of the culture solution; the pressure sensor is used for detecting the pressure of the culture solution in the photosynthetic reaction unit and is linked with a pressure regulating device for controlling the pressure of the culture solution in the photosynthetic reaction unit; an oxygen concentration sensor and a carbon dioxide concentration sensor for detecting the oxygen concentration and the carbon dioxide concentration in the culture solution inside the photosynthetic reaction unit, wherein the oxygen concentration sensor and the carbon dioxide concentration sensor are respectively connected with an oxygen supplementing device and a carbon dioxide supplementing device for supplementing oxygen or carbon dioxide to the culture solution when the oxygen concentration or the carbon dioxide concentration in the culture solution is insufficient; an algae growth monitoring device connected to the photosynthetic reaction unit or the culture unit for monitoring the growth of algae in the culture solution; and an automatic feeding unit which is connected with the photosynthetic reaction unit or the growth regulating unit and is used for regulating the growth of algae in the culture solution.

2. The algae cultivation system having a growth monitoring system according to claim 1, wherein one of opposite sides of the first partition is connected to one side wall of the adjustment tank and the other side thereof is formed with a first gap portion with the other side of the adjustment tank, and one of opposite sides of the second partition corresponding to the first gap portion is connected to the side wall of the adjustment tank and a second gap portion is formed between one side opposite to the first gap portion and the side wall of the adjustment tank.

3. The algae cultivation system with growth monitoring system according to claim 2, wherein the volume of the conditioning tank of the cultivation unit is equal to or greater than the volume of the photosynthetic reaction unit, and the residence time of the culture solution in the cultivation unit is not less than the residence time of the culture solution in the photosynthetic reaction unit.

4. The algae cultivation system having a growth monitoring system, according to claim 1, wherein the pressure control device has an air suction device having an air suction pipe and an air discharge pipe, the air suction pipe is connected to an opening of the oxygen discharge pipe for discharging the air and dead algae from the oxygen discharge pipe after being sucked.

5. The algae cultivation system having a growth monitoring system, according to claim 1, wherein the growth regulation control system further comprises a nutrient salt sensor for detecting a nutrient salt concentration in the culture solution.

6. The algae cultivation system having a growth monitoring system, according to claim 1, wherein the light sensor is further coupled to a sun shade for controlling the intensity of light emitted from the photosynthetic reaction unit.

7. The algae cultivation system having a growth monitoring system, according to claim 1, wherein the temperature control device comprises a heating device, and a cooling device; the heating device is a plurality of heaters, a plurality of heating pipelines, a plurality of heat-preservation coating films or a plurality of heat-preservation shells and is used for heating the culture solution when the temperature of the culture solution is too low, and the cooling device is a plurality of sprinkling pipes or spraying devices and is used for spraying cooling water or water mist on the photosynthetic reaction unit or the culture unit when the temperature of the culture solution is too high so as to reduce the temperature of the culture solution.

8. The algae cultivation system with growth monitoring system of claim 1, wherein the pressure regulating device comprises a pressure pump disposed at an inlet end of the photosynthetic reaction unit and a pressure relief valve disposed at an outlet end of the optically transparent coil or the photosynthetic reaction unit.

9. The algae cultivation system having a growth monitoring system of claim 1, wherein the algae growth monitoring apparatus comprises:

a light-transmitting tube, wherein the center of the light-transmitting tube can be used for the culture solution to flow through;

the isolation box body is coated outside the light transmission tube;

and the image capturing equipment and the light supplementing device are oppositely arranged on two sides of the light transmitting tube.

10. The algae cultivation system having a growth monitoring system, according to claim 9, wherein the algae growth monitoring apparatus further comprises an inlet control regulator and an outlet control regulator for controlling a flow rate of the culture fluid through the light-transmitting tube; and a lens assembly disposed between the image capture device and the light transmissive tube.

11. The algae cultivation system having a growth monitoring system of claim 1, wherein the automatic nutrient supply unit is configured to automatically monitor and analyze nutrient supply salt for optimal data of growth, expediting laboratory formulation control, optimal control formulation for industrial production; the automatic feeding unit includes: a plurality of analysis alcohol boxes, a plurality of spiral stirrers, a plurality of weight measuring instruments, a plurality of funnels, a plurality of automatic control valves, a water quality filter, a water flow meter, a water flow controller, a cleaning drain valve, a water temperature controller and a speed control motor.

12. The algae cultivation system with growth monitoring system of claim 1, comprising a harvesting unit, wherein the harvesting unit is configured to automatically harvest and filter the grown algae liquid, separate the algae liquid, remove the algae for use, and return the culture liquid after sterilization in accordance with the detection data.