CN211255880U - Box type culture equipment for microalgae culture - Google Patents

Abstract

The utility model relates to a little algae field of cultivateing is a box cultivation equipment for little algae is cultivateed, including box, frame and case lid to and install box inner membrance, light source and air feeder in the box. Wherein the light energy evenly distributed can be with arborescent light source in each corner of box to play the disturbance effect to the culture solution, make its stirring more even. The branched gas supply device is distributed at the bottom of the box body, so that the distribution range of the culture gas is enlarged, and the utilization rate of the culture gas is improved. The independent box inner membrance can part culture solution and box, can all change it fast after cultivateing little algae at every turn for it is more convenient to the clearance and the disinfection work of box.

Description

Box type culture equipment for microalgae culture

Technical Field

The utility model relates to a little algae field of cultivateing is a box cultivation equipment for little algae is cultivateed.

Background

The microalgae plays a key role in the process of earth ecological evolution, and can generate a large amount of organic substances required by other life bodies such as protein, grease, various fatty acids and the like through photosynthesis. Therefore, the utilization of microalgae is more and more emphasized by food processing, agricultural production, energy industry and medicine industry. At present, the artificial culture of microalgae mainly comprises an open type and a closed type. Due to open culture, microalgae can be directly contacted with the external environment, and invasive species such as bacteria, plankton and the like are always inevitably generated in the final product, so that the purity of the microalgae product is relatively high.

At present, the closed culture is mainly of a pipeline type, a flat plate type and a cylinder type. Wherein the pipeline formula is cultivateed, because culture vessel is comparatively complicated, the adherence appears in the in-process of alga in growth easily, and difficult clearance, has the problem that cultivates the gas utilization ratio and hang down simultaneously. The flat plate type culture usually adopts materials such as glass or organic glass to manufacture a culture container, so the cost is higher; and the problem of uneven stirring of the culture solution is easy to occur. The cylindrical culture is easy to cause the problems of uneven illumination intensity distribution and low utilization rate of culture gas. Meanwhile, the three closed culture modes have the problem of low output.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the utility model provides a box cultivation equipment for little algae is cultivateed can be large batch to little algae cultivate, improves irradiant homogeneity, improves the gaseous utilization ratio of cultivation.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the box type culture equipment for microalgae culture comprises a cuboid box body, a frame and a box cover, wherein the frame is arranged outside the box body and used for supporting the box body, the box cover is matched with the frame, and a light source and an air supply device are arranged in the box body; the light source comprises a root, a trunk and branches, wherein the root, the trunk and the branches are manufactured in a one-step forming mode, the branches are uniformly distributed on the trunk, the root is fixedly arranged on the box cover, the trunk extends towards the interior of the box body, and the root is connected with the luminous body arranged on the outer side of the box cover; the gas supply device comprises a main gas pipe, a branch gas pipe connected with the main gas pipe and a branch gas pipe connected with the branch gas pipe, one end of the main gas pipe is fixedly installed on the box cover, the other end of the main gas pipe extends to the bottom surface of the box body, and the branch gas pipe jointly form a plane type gas supply network parallel to the bottom surface of the box body.

Further, the root of the light source comprises a light source mounting seat sleeved on the trunk and a light source joint connected with the light source mounting seat, the light source mounting seat is mounted in a light source interface on the box cover, one end of the light source joint is in threaded connection with the light source mounting seat, the other end of the light source joint is connected with the luminous body, and the luminous intensity of the luminous body is regulated and controlled by the light source controller; the main part and the branches of the light source are cylindrical light guide bodies, and the branches are uniformly arranged on the circumferential surface of the main part.

Further, the length of the box body is 1500mm, the width is 1500mm and the depth is 1000mm, the length and the width of the frame are both adapted to the box body, and the depth is larger than the depth of the box body by 100mm and 150 mm; the number of the light sources is 2-4, the diameter of the trunk is 20-30mm, the length of the trunk is 50-100mm smaller than the depth of the frame, the diameter of the branch is 10-15mm, and the length of the branch is 300-500 mm.

Furthermore, the main air pipe is a circular pipe and is positioned on a vertical central axis of the box body, the upper end of the main air pipe is installed in an air pipe joint on the box cover through an air pipe installation seat, the lower end of the main air pipe is connected with the branch air pipe through a first air distribution joint, the first air distribution joint is a three-dimensional multi-channel air distribution joint, and the number of channels is not less than 3; the gas distribution pipe is a round pipe, one end of the gas distribution pipe is connected with the first gas distribution joint, at least one gas discharge hole I is arranged on the surface of the gas distribution pipe along the axis direction, the direction of the gas hole I faces the bottom of the box body, the other end of the gas distribution pipe is connected with the gas distribution pipe through a second gas distribution joint, the second gas distribution joint is a planar multi-channel gas distribution joint, and the number of channels is not less than 3; the branch air pipe is a circular pipe, one end of the branch air pipe is connected with the air distribution connector II, at least one air outlet II is arranged on the surface of the branch air pipe along the axis direction, the direction of the air outlet II faces the bottom of the box body, and the other end of the branch air pipe is closed.

Furthermore, the diameter of the main air pipe is 30-50mm, and the length of the main air pipe is 50-100mm smaller than the depth of the frame; the number of the bronchus is 2-6, the diameter is 20-30mm, and the length is 200-400 mm; the number of the branch air pipes is 2-6, the diameter is 20-30mm, and the length is 200-400 mm; the diameter of the first air hole and the second air hole is 0.5-2mm, and the distance between the first air hole and the second air hole is 5-10 mm.

Furthermore, a harvesting window is arranged at the bottom of the side surface of the box body, the harvesting window is in a semicircular arch shape which is sunken towards the interior of the box body, a first harvesting hole is formed in the concave surface, and a harvesting pipe is arranged in the first harvesting hole; the improved box is characterized in that a cuboid-shaped box inner film is arranged in the box body, the length and width of the box inner film are matched with those of the box body, the bottom surface and the four walls of the box body thin film are tightly attached to the bottom surface and the four walls of the box body, the top of the box inner film is open and is pressed on the upper edge of the frame through a box cover, and a harvesting hole II matched with a harvesting pipe is formed in the bottom of the box inner film.

Furthermore, the material of the main body, the branch and the root is any one of polymethyl methacrylate, polystyrene, polycarbonate, styrene-acrylonitrile copolymer, polymethyl isoprene and transparent polyamide; the luminous body is any one of a halogen lamp, a high-pressure sodium lamp, a metal halogen lamp, an LED lamp and a fluorescent lamp.

Furthermore, the main air pipe, the branch air pipes and the branch air pipes are made of one or more of phenolic plastics, polyurethane plastics, epoxy plastics, unsaturated polyester plastics, furan plastics, organic silicon resins, acryl resins and stainless steel.

Furthermore, the material of the inner film of the box body is one of polyethylene, polyvinyl chloride, polypropylene, polyester and nylon.

The technical effects of the utility model are that: the output is ensured by adopting a larger box body. Wherein the light energy evenly distributed can be with arborescent light source in each corner of box to play the disturbance effect to the culture solution, make its stirring more even. The branched gas supply device is distributed at the bottom of the box body, so that the distribution range of the culture gas is enlarged, and the utilization rate of the culture gas is improved. The independent box body film can separate the culture solution from the box body, and can be quickly replaced after microalgae is cultured every time, so that the box body is more convenient to clean and disinfect. The technical effects are mainly embodied through the following aspects:

a box cultivation equipment for little algae is cultivateed, including cuboid box, install the frame that is used for supporting the box outside the box and with frame assorted case lid. A light source and an air supply device are arranged in the box body. The light source comprises a root part, a trunk part and branches which are manufactured in a one-step forming mode and are uniformly distributed on the trunk part, the root part is fixedly installed on the box cover, the trunk part extends towards the interior of the box body, and the root part is connected with the luminous body arranged on the outer side of the box cover. The air supply device comprises a main air pipe, a branch air pipe connected with the main air pipe and a branch air pipe connected with the branch air pipe, wherein one end of the main air pipe is fixedly arranged on the box cover, and the other end of the main air pipe extends to the bottom surface of the box body; the branch air pipes and the branch air pipes jointly form a plane type air supply network parallel to the bottom surface of the box body.

The root of light source is including the light source mount pad of cover on the trunk and the light source joint of being connected with light source mount pad, and in the light source interface on the case lid was installed to the light source mount pad, the one end and the light source mount pad threaded connection of light source joint for the light source is fixed inside the box, does not take place the skew because of the disturbance of culture solution. The other end of the light source joint is connected with the luminous body. The luminous body can be regulated and controlled luminous intensity by the light source controller, and luminous body and light source controller all are located the case lid outside, have reduced the waterproof requirement to luminous body and light source controller, have reduced manufacturing cost. The main part and the branches of the light source are cylindrical light guide bodies, and the branches are uniformly arranged on the circumferential surface of the main part.

The length of the box body is 1500mm, the width is 1500mm, and the depth is 1000mm, thus ensuring high-efficiency production capacity. The length and width of the frame are all adapted to the box body, and the depth of the frame is larger than the depth of the box body by 100-150mm, so that framework support is provided for the box body, and the stability of the box body is ensured. The number of the light sources is 2-4, the diameter of the main trunk is 20-30mm, the length is 50-100mm smaller than the depth of the frame, the diameter of the branch is 10-15mm, and the length is 300-500 mm. The main trunk and the branches of the light source are distributed in a tree shape and are distributed in the box body, so that light energy can be uniformly transmitted to all corners of the box body; meanwhile, bubbles rising from the bottom of the box body can be broken, the contact area of the bubbles and the culture solution is enlarged, and the utilization rate of the culture gas is improved; and the stirring device can also play a role in disturbing the culture solution, so that the culture solution is stirred more uniformly.

The main air pipe is a round pipe and is positioned on the vertical central axis of the box body, the upper end of the main air pipe is installed in an air pipe connector on the box cover through an air pipe installation seat, and the lower end of the main air pipe is connected with the branch air pipe through an air distribution connector I. The first gas distribution joint is a three-dimensional multi-channel gas distribution joint, the number of channels of the first gas distribution joint is not less than 3, and a single gas passage extending vertically is extended into a plurality of gas passages extending horizontally. The branch gas pipe is a round pipe, one end of the branch gas pipe is connected with the first gas distribution joint, at least one first gas discharge hole is arranged on the surface of the branch gas pipe along the axis direction, and the direction of the first gas discharge hole faces the bottom of the box body. The other end of the branch gas pipe is connected with the branch gas pipe through a second gas distribution joint, the second gas distribution joint is a planar multi-channel gas distribution joint, the number of channels is not less than 3, and the gas passage is further extended to each corner of the bottom surface of the box body. The branch air pipe is a circular pipe, one end of the branch air pipe is connected with the air distribution joint II, at least one air outlet II is arranged on the surface of the branch air pipe along the axis direction, and the direction of the air outlet II faces the bottom of the box body; the other end of the branch air pipe is closed. The first air hole and the second air hole are both towards the bottom of the box body, so that the sprayed gas can be used for stirring the culture solution at the bottom of the box body and preventing microalgae from growing adherent to the wall.

The diameter of the main air pipe is 30-50mm, and the length of the main air pipe is 50-100mm smaller than the depth of the frame, so that the distribution depth of the culture gas in the box body is ensured. The number of the bronchus is 2-6, the diameter is 20-30mm, and the length is 200-400 mm; the number of the branch air pipes is 2-6, the diameter is 20-30mm, and the length is 200-400 mm, so that the culture gas can be distributed in a large range at the bottom of the box body. The diameter of the first air hole and the second air hole is 0.5-2mm, and the distance between the first air hole and the second air hole is 5-10mm, so that the fineness of the culture gas during spraying is ensured, the bubbles are uniform and dense, the contact area of the gas and the culture solution is increased, and the utilization rate of the gas is improved.

The bottom of the side face of the box body is provided with a harvesting window which is in a semicircular arch shape sunken towards the inside of the box body, and a first harvesting hole is formed in the concave face. The harvesting pipe is arranged in the harvesting hole I and hidden in the contour line of the frame, so that the occupied area of the harvesting pipe is reduced, and the harvesting pipe is not easily damaged by external force. A cuboid-shaped box body inner film is arranged in the box body, the length and the width of the box body inner film are adapted to the length and the width of the box body, and the bottom surface and the four walls of the box body inner film are tightly attached to the bottom surface and the four walls of the box body; the top of the inner film of the box body is open and is pressed and connected to the upper edge of the frame by the box cover. And a second harvesting hole matched with the harvesting pipe is formed in the bottom of the inner membrane of the box body. Independent box inner membrance can keep apart culture solution and box, accomplishes the cultivation back, can directly carry out quick replacement to the box inner membrance, and then has reduced the clearance and the disinfection work load of box.

The material of the main body, the branch and the root is any one of polymethyl methacrylate, polystyrene, polycarbonate, styrene acrylonitrile copolymer, polymethyl isoprene and transparent polyamide, so that the light source has excellent light transmission and light guide performance. The illuminant is any one of a halogen lamp, a high-pressure sodium lamp, a metal halogen lamp, an LED lamp and a fluorescent lamp, and can be reasonably selected according to the variety of the cultured microalgae and various requirements of the growth stage.

The main air pipe, the branch air pipes and the branch air pipes are made of one or more of phenolic plastics, polyurethane plastics, epoxy plastics, unsaturated polyester plastics, furan plastics, organic silicon resin, acryl resin and stainless steel, so that the air supply device has good corrosion resistance and rigidity, is not damaged due to acid-base change of culture solution, and is not deviated due to disturbance of gas.

The inner film of the box body is made of one of polyethylene, polyvinyl chloride, polypropylene, polyester and nylon so as to ensure that the inner film of the box body has excellent toughness and ductility and is not damaged due to installation errors.

The above description is only illustrative of the technical solutions and not restrictive.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive effort.

FIG. 1 is a schematic structural diagram of a box-type cultivation apparatus for microalgae cultivation provided by an embodiment of the present invention;

fig. 2 is a schematic view of a front view structure of a box body provided by the embodiment of the present invention;

fig. 3 is a schematic view of a sectional structure a-a of a harvesting window provided in an embodiment of the present invention;

fig. 4 is a schematic diagram of a frame structure provided by an embodiment of the present invention;

fig. 5 is a schematic view of a front view structure of a thin film of a box body provided by an embodiment of the present invention;

fig. 6 is a schematic diagram of a sectional structure B-B of a mining hole two provided in the embodiment of the present invention;

fig. 7 is a schematic view of a front view structure of a case cover according to an embodiment of the present invention;

fig. 8 is a schematic front view of a light source mounting base according to an embodiment of the present invention;

fig. 9 is a front view structure diagram of the trachea mount provided by the embodiment of the utility model;

fig. 10 is a schematic front view of a light source according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a light emitter according to an embodiment of the present invention;

fig. 12 is a schematic front view of the main air pipe provided in the embodiment of the present invention;

fig. 13 is a schematic structural view of a gas distribution joint provided in an embodiment of the present invention;

fig. 14 is a schematic structural diagram of a bronchus in front view according to an embodiment of the present invention;

fig. 15 is a schematic front view of a gas distribution joint ii according to an embodiment of the present invention;

fig. 16 is a schematic front view of a branched trachea according to an embodiment of the present invention;

description of reference numerals:

10-box body, 11-harvesting window, 111-harvesting hole I, 12-harvesting pipe; 20-a frame; 30-box inner membrane, 31-second harvesting hole; 40-box cover, 41-light source interface and 42-air pipe interface; 50-a light source mount; 60-an air pipe mounting seat; 70-light source, 71-trunk, 72-branch, 73-root, 731-light source joint, 74-luminophor, 75-light source controller; 80-air supply device, 81-main air pipe, 82-air distribution joint I, 83-branch air pipe, 831-air hole I, 84-air distribution joint II, 85-branch air pipe and 851-air hole II.

Detailed Description

In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

In order to explain the technical solution of the present invention, the following description is made by using specific examples. The following description is illustrative of the technical solution and is not restrictive.

Referring to fig. 1, the box type cultivation apparatus for microalgae cultivation includes a rectangular parallelepiped box 10, a frame 20 installed outside the box 10 for supporting the box 10, and a cover 40 fitted to the frame 20. The light source 70 and the gas supply device 80 are installed in the case 10. The light source 70 includes a root 73, a trunk 71 and branches 72 uniformly distributed on the trunk 71, wherein the root 73 is fixedly mounted on the case cover 40, the trunk 71 extends toward the inside of the case 10, and the root 73 is connected to a light emitter 74 disposed outside the case cover 40. The air supply device 80 comprises a main air pipe 81, a branch air pipe 83 connected with the main air pipe 81 and a branch air pipe 85 connected with the branch air pipe 83, wherein one end of the main air pipe 81 is fixedly arranged on the box cover 40, and the other end of the main air pipe extends to the bottom surface of the box body 10; the branch air pipes 83 and 85 together form a planar air supply network parallel to the bottom surface of the case 10.

As an embodiment, as shown in fig. 1, 7, 8, 10, and 11, the root 73 of the light source 70 includes a light source mounting seat 50 sleeved on the trunk 71 and a light source connector 731 connected to the light source mounting seat 50, the light source mounting seat 50 is installed in the light source interface 41 on the box cover 10, and one end of the light source connector 731 is in threaded connection with the light source mounting seat 50, so that the light source 70 is fixed inside the box body 10 and does not deviate due to the disturbance of the culture solution. The other end of the light source connector 731 is connected to the light 74. The luminous body 74 can be regulated and controlled in luminous intensity by the light source controller 75, and the luminous body 74 and the light source controller 75 are both located on the outer side of the box cover 40, so that the waterproof requirements on the luminous body 74 and the light source controller 75 are reduced, and the production cost is reduced. The trunk 71 and the branches 72 of the light source 70 are both cylindrical light guides, and the branches 72 are uniformly arranged on the circumferential surface of the trunk 71.

In this embodiment, as shown in fig. 2, 4 and 10, the length of the box 10 is 1500mm, the width is 1500mm and the depth is 1000mm, which ensures high-efficiency production capacity. The length and width of the frame 20 are both adapted to the box 10 and the depth is larger than the depth of the box 10 by 100-150mm, so as to provide framework support for the box 10 and ensure the stability of the box 10. The number of the light sources 70 is 2-4, the diameter of the trunk 71 is 20-30mm, the length is 50-100mm smaller than the depth of the frame 20, the diameter of the branch 72 is 10-15mm, and the length is 300-500 mm. The main trunk 71 and the branches 72 of the light source 70 are distributed in a tree shape and are distributed in the box body 10, so that light energy can be uniformly transmitted to all corners of the box body 10; meanwhile, bubbles rising from the bottom of the box body 10 can be broken, the contact area of the bubbles and the culture solution is enlarged, and the utilization rate of the culture gas is improved; and the stirring device can also play a role in disturbing the culture solution, so that the culture solution is stirred more uniformly.

As an embodiment, as shown in fig. 9, 12, 13, 14, 15, and 16, the main air pipe 81 is a circular pipe and is located on the vertical central axis of the box 10, the upper end thereof is installed in the air pipe connector 42 on the box cover 40 through the air pipe installation seat 60, and the lower end thereof is connected with the branch air pipe 83 through the first air distribution connector 82. The first gas distribution joint 82 is a three-dimensional multi-channel gas distribution joint, the number of channels of the joint is not less than 3, and a single gas passage extending vertically is extended into a plurality of gas passages extending horizontally. The branch pipe 83 is a circular pipe, one end of the branch pipe is connected with the first gas distribution connector 82, at least one gas outlet 831 is arranged on the surface of the branch pipe along the axial direction, and the direction of the gas outlet 831 faces the bottom of the box body 10. The other end of the branch air pipe 83 is connected with a branch air pipe 85 through a second gas distribution joint 84, the second gas distribution joint 84 is a planar multi-channel gas distribution joint, the number of channels is not less than 3, and further the gas channel extends to each corner of the bottom surface of the box body 10. The branch air pipe 85 is a circular pipe, one end of the branch air pipe is connected with the second air distribution joint 84, at least one air outlet 851 is arranged on the surface of the branch air pipe along the axis direction, and the direction of the air outlet 851 faces the bottom of the box body 10; the other end of the branched gas pipe 85 is closed. The first gas hole 831 and the second gas hole 851 are both oriented to the bottom of the box body 10, so that the sprayed gas can stir the culture solution at the bottom of the box body 10 and prevent the microalgae from growing adherent to the wall

In this embodiment, as shown in FIGS. 12, 14 and 16, the diameter of the main gas pipe 81 is 30-50mm, and the length thereof is 50-100mm smaller than the depth of the frame 20, so as to ensure the distribution depth of the culture gas in the chamber 10. The number of the bronchus 83 is 2-6, the diameter is 20-30mm, and the length is 200-400 mm; the number of the branch air pipes 85 is 2-6, the diameter is 20-30mm, and the length is 200-400 mm, so that the culture gas can be distributed in a large range at the bottom of the box body 10. The diameters of the first air hole 831 and the second air hole 851 are 0.5-2mm, and the distance between the first air hole 851 and the second air hole 851 is 5-10mm, so that the fineness of the culture gas during spraying is ensured, the bubbles are uniform and dense, the contact area of the gas and the culture solution is increased, and the utilization rate of the gas is improved.

In this embodiment, as shown in fig. 1, 2, 3, 5, and 6, a harvesting window 11 is disposed at the bottom of the side surface of the box 10, and is in the shape of a semicircular arch recessed into the box 10, and a first harvesting hole 111 is disposed on a concave surface. The harvesting pipe 12 is arranged in the harvesting hole I111, and the harvesting pipe 12 is hidden in the contour line of the frame 20, so that the occupied area of the harvesting pipe 12 is reduced, and the harvesting pipe 12 is not easily damaged by external force. A cuboid-shaped box body inner film 30 is arranged in the box body 10, the length and the width of the box body inner film are matched with the length and the width of the box body 10, and the bottom surface and the four walls of the box body inner film 30 are tightly attached to the bottom surface and the four walls of the box body 10; the top of the inner case 30 is open and is pressed against the upper edge of the frame 20 by the case cover 40. The bottom of the box body inner membrane 30 is provided with a second harvesting hole 31 matched with the harvesting pipe 12. Independent box inner membrance 30 can keep apart culture solution and box 10, accomplishes the cultivation back, can directly carry out quick replacement to box inner membrance 30, and then has reduced the clearance and the disinfection work load of box 10.

In this embodiment, as shown in fig. 10 and 11, the material of the trunk 71, the branches 72, and the roots 73 is any one of polymethyl methacrylate, polystyrene, polycarbonate, styrene-acrylonitrile copolymer, polymethyl isoprene, and transparent polyamide, so that the light source 70 has excellent light transmittance and light guiding property. The light emitter 74 may be any one of a halogen lamp, a high-pressure sodium lamp, a metal halide lamp, an LED lamp, and a fluorescent lamp, and may be selected appropriately according to the kind of microalgae to be cultured and the requirements of the growing stage.

In this embodiment, as shown in fig. 12, 14, and 16, the main gas pipe 81, the branch gas pipe 83, and the branch gas pipe 85 are made of one or more of phenolic plastic, polyurethane plastic, epoxy plastic, unsaturated polyester plastic, furan plastic, silicone resin, acryl resin, and stainless steel, so that the gas supply device 80 has good corrosion resistance and rigidity, is not damaged by the acid-base change of the culture solution, and is not deviated by the disturbance of the gas.

In this embodiment, as shown in fig. 5 and 6, the material of the box inner film 30 is one of polyethylene, polyvinyl chloride, polypropylene, polyester, and nylon, so as to ensure that the box inner film 30 has excellent toughness and ductility and is not damaged due to installation error.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and are not limited thereto. Those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.

Claims (8)

1. A box cultivation equipment for little algae is cultivateed, including rectangular bodily form's box, install the frame that is used for supporting the box outside the box and with frame assorted case lid, its characterized in that: a light source and an air supply device are arranged in the box body; the light source comprises a root, a trunk and branches, wherein the root, the trunk and the branches are manufactured in a one-step forming mode, the branches are uniformly distributed on the trunk, the root is fixedly arranged on the box cover, the trunk extends towards the interior of the box body, and the root is connected with the luminous body arranged on the outer side of the box cover; the gas supply device comprises a main gas pipe, a branch gas pipe connected with the main gas pipe and a branch gas pipe connected with the branch gas pipe, one end of the main gas pipe is fixedly installed on the box cover, the other end of the main gas pipe extends to the bottom surface of the box body, and the branch gas pipe jointly form a plane type gas supply network parallel to the bottom surface of the box body.

2. The box type cultivation apparatus for microalgae cultivation as claimed in claim 1, wherein: the root of the light source comprises a light source mounting seat sleeved on the trunk and a light source joint connected with the light source mounting seat, the light source mounting seat is mounted in a light source interface on the box cover, one end of the light source joint is in threaded connection with the light source mounting seat, the other end of the light source joint is connected with a luminous body, and the luminous intensity of the luminous body is regulated and controlled by a light source controller; the main part and the branches of the light source are cylindrical light guide bodies, and the branches are uniformly arranged on the circumferential surface of the main part.

3. The box type cultivation apparatus for microalgae cultivation as claimed in claim 2, wherein: the length of the box body is 1500mm, the width of the box body is 1500mm, the depth of the box body is 1000mm, the length and the width of the frame are both adapted to the box body, and the depth of the frame is larger than the depth of the box body by 100mm and 150 mm; the number of the light sources is 2-4, the diameter of the trunk is 20-30mm, the length of the trunk is 50-100mm smaller than the depth of the frame, the diameter of the branch is 10-15mm, and the length of the branch is 300-500 mm.

4. The box type cultivation apparatus for microalgae cultivation as claimed in claim 1, wherein: the main air pipe is a round pipe and is positioned on the vertical central axis of the box body, the upper end of the main air pipe is installed in an air pipe joint on the box cover through an air pipe installation seat, the lower end of the main air pipe is connected with the branch air pipe through a first air distribution joint, the first air distribution joint is a three-dimensional multi-channel air distribution joint, and the number of channels is not less than 3; the gas distribution pipe is a round pipe, one end of the gas distribution pipe is connected with the first gas distribution joint, at least one gas discharge hole I is arranged on the surface of the gas distribution pipe along the axis direction, the direction of the gas hole I faces the bottom of the box body, the other end of the gas distribution pipe is connected with the gas distribution pipe through a second gas distribution joint, the second gas distribution joint is a planar multi-channel gas distribution joint, and the number of channels is not less than 3; the branch air pipe is a circular pipe, one end of the branch air pipe is connected with the air distribution connector II, at least one air outlet II is arranged on the surface of the branch air pipe along the axis direction, the direction of the air outlet II faces the bottom of the box body, and the other end of the branch air pipe is closed.

5. The box type cultivation apparatus for microalgae cultivation as claimed in claim 4, wherein: the diameter of the main air pipe is 30-50mm, and the length of the main air pipe is 50-100mm smaller than the depth of the frame; the number of the bronchus is 2-6, the diameter is 20-30mm, and the length is 200-400 mm; the number of the branch air pipes is 2-6, the diameter is 20-30mm, and the length is 200-400 mm; the diameter of the first air hole and the second air hole is 0.5-2mm, and the distance between the first air hole and the second air hole is 5-10 mm.

6. The box-type cultivation apparatus for microalgae cultivation as claimed in any one of claims 1 to 5, wherein: a harvesting window is arranged at the bottom of the side face of the box body, the harvesting window is in a semicircular arch shape which is sunken towards the interior of the box body, a first harvesting hole is formed in the concave face of the harvesting window, and a harvesting pipe is arranged in the first harvesting hole; the improved box is characterized in that a cuboid-shaped box inner film is arranged in the box body, the length and width of the box inner film are matched with those of the box body, the bottom surface and the four walls of the box body thin film are tightly attached to the bottom surface and the four walls of the box body, the top of the box inner film is open and is pressed on the upper edge of the frame through a box cover, and a harvesting hole II matched with a harvesting pipe is formed in the bottom of the box inner film.

7. The box type cultivation apparatus for microalgae cultivation as claimed in claim 6, wherein: the material of the main body, the branch and the root is any one of polymethyl methacrylate, polystyrene, polycarbonate, styrene acrylonitrile copolymer, polymethyl isoprene and transparent polyamide; the luminous body is any one of a halogen lamp, a high-pressure sodium lamp, a metal halogen lamp, an LED lamp and a fluorescent lamp.

8. The box type cultivation apparatus for microalgae cultivation as claimed in claim 6, wherein: the inner film of the box body is made of one of polyethylene, polyvinyl chloride, polypropylene, polyester and nylon.

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