Carbon source supply device for microalgae culture

Abstract

The utility model discloses a carbon source supply device for microalgae culture. The carbon source supply device comprises a high-speed motor, a motor connecting seat, a magnetic coupling motor disc, a shaft end locking nut, an isolation sleeve, a magnetic linkage coupling device disc, a magnetic linkage coupling device disc connecting key, a feeding disc, a rotating disc connecting key, a rotating disc locking nut, a fixed disc, a movable disc, a device barrel, a discharging disc and a rotating shaft, according to the device disclosed by the utility model, carbon dioxide gas and water are simultaneously introduced, gas-liquid mass transfer is enhanced in the device, an atomized state is formed, and then the carbon dioxide gas is introduced into a culture water body, so that the mass transfer effect of the carbon dioxide gas and microalgae in the water body is effectively improved, the escape rate of the carbon dioxide gas is reduced, and the utilization rate of the carbon dioxide gas is up to more than 95%; meanwhile, the air source operation cost of large-scale breeding is greatly reduced, and the air source operation cost is reduced by more than 50% on the basis of an original breeding mode.

Description

Technical Field

[0001] This utility model belongs to the field of microalgae cultivation, and in particular relates to a carbon source supply device for microalgae cultivation. Background Technology

[0002] Carbon sources need to be supplemented during microalgae cultivation. On the one hand, carbon is essential for the accumulation of microalgae biomass; on the other hand, microalgae fix carbon as inorganic carbon. Therefore, the main source of carbon is carbon dioxide. Current technology involves mixing carbon dioxide with air in a certain proportion and then introducing it into the aquaculture water. However, the concentration of carbon dioxide in the mixed gas is very low, and the mass transfer effect after mixing the gas with the algal solution is also extremely low, resulting in a large amount of carbon dioxide escaping with the air, increasing the operating costs of large-scale aquaculture.

[0003] To ensure sufficient biomass accumulation in microalgae, a mass balance needs to be maintained. This necessitates increasing the carbon dioxide supply several times over on top of the existing carbon source. However, this increases the operating costs of large-scale microalgae cultivation, and the significant carbon dioxide escape prevents energy conservation and emission reduction. Therefore, minimizing carbon dioxide escape and ensuring efficient absorption by the microalgae is a pressing issue. In response, Chinese patent CN211771225 U discloses a piped carbon source supply device for microalgae cultivation. This device addresses the problem of inconvenient carbon dioxide addition to the culture medium in existing microalgae cultivation methods. The proposed solution includes a glass pipe and a carbon source supply pipe. One end of the carbon source supply pipe is connected to one end of a U-shaped pipe, and the other end of the U-shaped pipe is fixedly fitted with a vent pipe extending into the glass pipe. A partition is fixedly installed inside the carbon source supply pipe, and the partition has a connecting hole. A vertical rod is fixedly installed on the top and bottom inner walls of the carbon source supply pipe. Two symmetrically arranged horizontal rods are fixedly installed on one side of the partition, and the other ends of the horizontal rods are fixedly installed on the vertical rod. A sliding plate is slidably installed on the two horizontal rods. The device facilitates the addition of carbon source through the opening and closing of the connecting hole. However, this device still suffers from high carbon dioxide escape rate and low utilization rate. Utility Model Content

[0004] The technical problem this invention aims to solve is to provide a carbon source supply device for microalgae cultivation. This device simultaneously introduces carbon dioxide gas and water, enhancing gas-liquid mass transfer within the device to create an atomized state before introducing it into the cultivation water. This effectively increases the mass transfer of carbon dioxide between the water and microalgae, reduces the carbon dioxide escape rate, and achieves a carbon dioxide utilization rate of over 95%. Simultaneously, it significantly reduces the gas source operating costs for large-scale cultivation, lowering them by more than 50% compared to traditional cultivation methods.

[0005] A carbon source supply device for microalgae cultivation includes a high-speed motor, a motor connector, a magnetic coupling motor disc, a shaft end locking nut, an isolation sleeve, a magnetic chain coupling device disc, a magnetic chain coupling device disc connecting key, a feed disc, a turntable connecting key, a turntable locking nut, a fixed disc, a moving disc, a device cylinder, a discharge disc, and a rotating shaft.

[0006] The left end of the high-speed motor and the right end face of the motor connector are fixedly connected;

[0007] The left end face of the motor connector is fixedly connected to the feed tray;

[0008] The right end of the magnetic coupling motor disk 3 is fixedly connected to the high-speed motor.

[0009] A magnetic chain coupling device disc is provided between the magnetic coupling motor disc and the feed disc;

[0010] An isolation sleeve is provided between the magnetic coupling device disk and the magnetic coupling motor disk 3; the left end of the isolation sleeve is fixed on the feed disk;

[0011] The moving plate is positioned between the fixed plate and the discharge plate; and there are gaps between the moving plate and both the fixed plate and the discharge plate; the discharge plate is provided with a discharge port.

[0012] The center of the moving disk is fixed to the rotating shaft by a turntable connecting key and a turntable locking nut;

[0013] The device cylinder is positioned between the ends of the fixed plate and the discharge plate;

[0014] The fixed plate, device cylinder, and discharge plate are connected as a whole by bolts.

[0015] Preferably, the magnetic coupling motor disc has a smaller diameter at the right end and a larger diameter at the left end; the magnetic coupling motor disc has a circular cavity at the left end; and the magnetic chain coupling device disc is positioned exactly inside the circular cavity.

[0016] Preferably, the feed pan is provided with inlet channels for carbon dioxide and water, and the two-phase media carbon dioxide and water flow into the fixed pan through the inlet channels.

[0017] Preferably, the fixed plate includes an outer ring groove, a middle ring groove, an inner ring groove, and a diversion hole, through which carbon dioxide and water are collected at multiple points on the inner ring groove.

[0018] Preferably, the moving disk includes an outer ring groove, a middle ring groove, and an inner ring groove.

[0019] Unless otherwise specified, all components or materials in this utility model can be obtained through commercial purchase, and the equipment used in this utility model can be conventional equipment in the relevant field or refer to existing technology in the relevant field.

[0020] Compared with the prior art, the present invention has the following beneficial effects. :

[0021] In this utility model device, carbon dioxide and water are atomized and emulsified by the device before being introduced into the aquaculture water. This effectively increases the mass transfer effect of carbon dioxide in the water and microalgae, reduces the escape rate of carbon dioxide, and achieves a utilization rate of over 95%. At the same time, it significantly reduces the gas source operating cost of large-scale aquaculture by more than 50% compared to the original aquaculture method. Attached Figure Description

[0022] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of a carbon source supply device for microalgae cultivation according to the present invention.

[0024] Figure 2 This is a schematic cross-sectional view of the motor connector in this utility model;

[0025] Figure 3 This is a schematic cross-sectional view of the magnetic coupling motor disc in this utility model;

[0026] Figure 4 This is a schematic cross-sectional view of the isolation sleeve in this utility model;

[0027] Figure 5 This is a schematic cross-sectional view of the magnetic linkage coupling device disc in this utility model;

[0028] Figure 6 This is a schematic diagram of the cross-section of the feed tray in this utility model;

[0029] Figure 7 This is a schematic diagram of the cross-section of the fixed plate in this utility model;

[0030] Figure 8 for Figure 7 The right-side view;

[0031] Figure 9 This is a schematic diagram of the cross-section of the moving disk in this utility model;

[0032] Figure 10 for Figure 9 The right-side view. Detailed Implementation

[0033] To more clearly illustrate this utility model, the following description, in conjunction with preferred embodiments, further clarifies the invention. Those skilled in the art should understand that the specific description below is illustrative rather than restrictive and should not be construed as limiting the scope of protection of this utility model.

[0034] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0035] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] See Figures 1-10 As shown, as one aspect of this utility model, a carbon source supply device for microalgae cultivation includes:

[0038] The high-speed motor 1 serves to provide rotational power and kinetic energy for the device of this utility model;

[0039] The motor connector 2 is used to install and fix the motor.

[0040] The magnetic coupling motor disc 3 is used to connect the magnetic coupling motor disc 3 to the high-speed motor through the shaft hole and is fixed by the key and set screw; its function is to transmit the start and stop of the motor and drive the magnetic chain coupling device disc 6 to start and stop through the action of magnetic force.

[0041] The function of the shaft end locking nut 4 is to prevent the rotating shaft 15 from moving axially and to control the gap between the fixed plate 11 and the moving plate 12.

[0042] The isolation sleeve 5 is used to separate the magnetic coupling motor disk 3 and the magnetic linkage coupling device disk 6, and to seal the medium in the shaft system area.

[0043] The magnetic coupling device disc 6 serves to connect the magnetic coupling device disc 6 and the rotating shaft 15 through a shaft hole and secure them with a key and set screw. Its function is to follow the magnetic force of the magnetic coupling device disc 6 in starting and stopping, driving the rotating shaft 15 to rotate.

[0044] The magnetic link coupling device disk connecting key 7 is used to fix the magnetic link coupling device disk 6 on the rotating shaft 15.

[0045] The feed tray 8 serves to provide a feed channel 81 for the two-phase medium of carbon dioxide and water, and at the same time to transport raw materials carbon dioxide and water to the fixed tray 11.

[0046] The turntable connecting key 9 is used to fix the moving plate 12 on the rotating shaft 15;

[0047] The turntable locking nut 10 works together with the turntable connecting key 9 to fix the moving plate 12 on the rotating shaft 15, ensuring that the turntable 12 does not undergo axial displacement.

[0048] The fixed plate 11 works in conjunction with the moving plate 12 to provide efficient shearing force for the two-phase medium of carbon dioxide and water in the fixed plate 11 and the moving plate 12, which is similar to the function of the grinding disc.

[0049] The moving disk 12 provides rotational kinetic energy and works with the fixed disk 11 to provide suitable shear force for the two phases of carbon dioxide and water; under the action of high-speed shear force, the mass transfer effect of carbon dioxide and water is enhanced.

[0050] The device cylinder 13 serves to stably fix the fixed plate 11 and the discharge plate 14 together to form a sealed chamber.

[0051] The discharge plate 14 serves to provide a discharge channel for the carbon source in the atomized state;

[0052] Rotating shaft 15; its function is to provide rotational power for the moving disk;

[0053] The left end of the high-speed motor 1 is fixedly connected to the right end face of the motor connecting seat 2;

[0054] The left end face of the motor connector 2 is fixedly connected to the feed tray 8;

[0055] The right end of the magnetic coupling motor disc 3 is fixedly connected to the high-speed motor 1; specifically, the magnetic coupling motor disc 3 and the high-speed motor are connected through a shaft hole and fixed with a key and a set screw.

[0056] A magnetic chain coupling device disk 6 is provided between the magnetic coupling motor disk 3 and the feed disk 8.

[0057] An isolation sleeve 5 is provided between the magnetic coupling device disk 6 and the magnetic coupling motor disk 3; the left end of the isolation sleeve 5 is fixed on the feed disk 8.

[0058] The moving plate 12 is disposed between the fixed plate 11 and the discharge plate 14; and there are gaps between the moving plate 12 and the fixed plate 11 and the discharge plate 14; the discharge plate is provided with a discharge port 141.

[0059] The center of the moving disk 12 is fixed to the rotating shaft 15 by the turntable connecting key 9 and the turntable locking nut 10;

[0060] The device cylinder 13 is disposed between the ends of the fixed plate 11 and the discharge plate 14;

[0061] The fixed plate 11, the device cylinder 13, and the discharge plate 14 are connected as a whole by bolts.

[0062] According to some embodiments of the present invention, the magnetic coupling motor disk 3 has a smaller diameter at the right end and a larger diameter at the left end; the magnetic coupling motor disk 3 has a circular cavity 31 at the left end; and the magnetic chain coupling device disk 6 is disposed exactly in the circular cavity 31.

[0063] According to some embodiments of the present invention, the feed tray 8 is provided with inlet channels 81 for carbon dioxide and water respectively, and the two-phase media carbon dioxide and water flow into the fixed tray 11 through the inlet channels.

[0064] According to certain embodiments of the present invention, the fixed plate 11 includes a fixed plate outer ring groove 111, a fixed plate middle ring groove 112, a fixed plate inner ring groove 113, and a fixed plate diversion hole 114. Carbon dioxide and water are collected at multiple points on the fixed plate inner ring groove 113 through the fixed plate diversion hole 114. The two-phase media carbon dioxide and water are received into the fixed plate diversion hole 114 of the fixed plate 11 through the inlet channel 81 of the feed plate 8.

[0065] According to certain embodiments of the present invention, the moving disk 12 includes an outer ring groove 121, a middle ring groove 122, and an inner ring groove 123.

[0066] The working principle of the carbon source supply device for microalgae cultivation of this utility model is as follows:

[0067] Start the high-speed motor, which drives the magnetic coupling motor disk 3 to rotate. Under the action of magnetic force, the rotation of the magnetic coupling motor disk 3 will drive the dynamic coupling device disk 6 to rotate, which will drive the moving disk 12 to rotate under the connection of the rotating shaft 15.

[0068] Carbon dioxide and water are fed through the inlet channel 81 of the feed plate 8 into the fixed plate diversion hole 114 of the fixed plate 11; and then fed into the gap between the fixed plate 11 and the moving plate 12.

[0069] Under the centrifugal force of high-speed rotation, carbon dioxide and water gradually flow through the gap between the fixed plate 11 and the moving plate 12, and gradually flow through the inner, middle, and outer grooves of the fixed plate 11 and the moving plate 12. Under the action of high-speed shear force, the mass transfer effect of carbon dioxide and water is enhanced. Carbon dioxide is broken into micron-sized particles (when carbon dioxide gas is directly added to a liquid, the bubbles formed are all in the millimeter size because the surface tension of the gas is small. However, in this device, under the action of high-speed shear force, a gas-liquid mixture is finally formed. Due to the high surface tension of water, carbon dioxide will be distributed in the water as micron-sized bubbles. This process is called breaking up) and dissolves in the water, achieving the effect of atomization.

[0070] The discharge plate 14 is provided with a discharge port 141. The atomized gas is supplied to the microalgae cultivation system through the discharge port. Because it is in an atomized state, the residence time of carbon dioxide in the cultivation water is increased, and the microalgae can fully absorb the carbon source and reduce the escape of carbon dioxide.

[0071] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is impossible to exhaustively list all possible implementations here. All obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A carbon source supply device for microalgae cultivation, characterized in that, Includes a high-speed motor, motor connector, magnetic coupling motor disc, shaft end lock nut, isolation sleeve, magnetic chain coupling device disc, magnetic chain coupling device disc connecting key, feed disc, turntable connecting key, turntable lock nut, fixed disc, moving disc, device cylinder, discharge disc, and rotating shaft; The left end of the high-speed motor and the right end face of the motor connector are fixedly connected; The left end face of the motor connector is fixedly connected to the feed tray; The right end of the magnetic coupling motor disk is fixedly connected to the high-speed motor. A magnetic chain coupling device disc is provided between the magnetic coupling motor disc and the feed disc; An isolation sleeve is provided between the magnetic coupling device disc and the magnetic coupling motor disc; the left end of the isolation sleeve is fixed on the feed disc; The moving plate is positioned between the fixed plate and the discharge plate; and there are gaps between the moving plate and both the fixed plate and the discharge plate; the discharge plate is provided with a discharge port. The center of the moving disk is fixed to the rotating shaft by a turntable connecting key and a turntable locking nut; The device cylinder is positioned between the ends of the fixed plate and the discharge plate; The fixed plate, device cylinder, and discharge plate are connected as a whole by bolts.

2. The carbon source supply device for microalgae cultivation according to claim 1, characterized in that: The magnetic coupling motor disc has a smaller diameter on the right end and a larger diameter on the left end; the magnetic coupling motor disc has a circular cavity on the left end; the magnetic chain coupling device disc is set exactly inside the circular cavity.

3. The carbon source supply device for microalgae cultivation according to claim 1, characterized in that: The feed pan is equipped with inlet channels for carbon dioxide and water, and the two-phase media, carbon dioxide and water, flow into the fixed pan through the inlet channels.

4. The carbon source supply device for microalgae cultivation according to claim 1, characterized in that: The fixed plate includes an outer ring groove, a middle ring groove, an inner ring groove, and a distribution hole. Carbon dioxide and water are collected at multiple points on the inner ring groove through the distribution hole.

5. The carbon source supply device for microalgae cultivation according to claim 1, characterized in that: The moving plate includes an outer ring groove, a middle ring groove, and an inner ring groove.

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