A Haematococcus algae cultivation device based on the niche principle

Abstract

The present invention relates to the technical field of Haematococcus algae cultivation, specifically a Haematococcus algae cultivation device based on the principle of ecological niche, including a liquid storage tank for storing Haematococcus algae solution, a main channel pipe is connected to the middle of the top surface of the liquid storage tank, a liquid pipe is suspended on the central axis of the main channel pipe, a water pump for pumping Haematococcus algae solution into the liquid pipe is installed on the top of the liquid storage tank, a plurality of culture groups are arranged on the outside of the main channel pipe, and a flipping group for controlling the rotation of a plurality of liquid introduction pipes is arranged inside the main channel pipe. The present invention pumps the prepared Haematococcus algae solution in the liquid storage tank into a plurality of culture groups through a water pump, forms ecological niches at different positions, and starts a servo motor to work at a low speed, and drives the main rotary cylinder to drive a plurality of liquid introduction pipes to rotate synchronously in different directions, so that the Haematococcus algae solution in the culture cylinder does not stand still or hang on the wall, thereby maximizing the use of sunlight and space resources to fully receive light growth.

Description

Technical Field

[0001] The invention relates to the technical field of Haematococcus algae cultivation, in particular to a Haematococcus algae cultivation device based on the niche principle. Background Art

[0002] The cultivation of Haematococcus pluvialis based on the principle of niche is a method of cultivating microalgae using natural resources efficiently. In biology, the principle of niche refers to the position occupied by an organism in a community and its relationship with the surrounding organisms and the environment.

[0003] Application number CN201910861014.5 discloses a large-scale cultivation device for Haematococcus pluvialis made using the principle of ecological niche. The main body is a circular base, on which a liquid storage tank, a transfer tank, and an algae collection tank are distributed. A trunk-shaped bracket is arranged in the center of the base; transparent glass rounded rectangular thin plates are staggeredly connected to the trunk-shaped bracket; in general, the configuration of the entire device is like a big tree standing proudly in the sky. The present invention has good light transmittance, can realize rapid and efficient cultivation and induction of Haematococcus pluvialis, and realize semi-continuous production. The entire device is in a sealed state, which significantly reduces the contamination of miscellaneous bacteria; the entire device has a "big tree" structure, utilizes the principle of ecological niche in biology, makes full use of the sunlight of nature, saves floor space, and provides a new way for efficient and large-scale cultivation of Haematococcus pluvialis.

[0004] However, in a static state, Haematococcus algae will grow against the wall, which will affect the lighting of other Haematococcus algae in the closed space. The movement of Haematococcus algae will be different due to different light. Moving too fast will damage the Haematococcus algae itself, while moving slowly will stick to the wall to block light, which will affect the growth quality of Haematococcus algae. Summary of the invention

[0005] In order to overcome the defects in the prior art, the purpose of the present invention is to provide a Haematococcus algae cultivation device based on the niche principle to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides a Haematococcus algae cultivation device based on the niche principle, comprising a liquid storage tank for storing a Haematococcus algae solution, a main channel pipe being connected and arranged in the middle of the top surface of the liquid storage tank, a liquid-passing pipe being suspended on the central axis of the main channel pipe, a water pump for pumping the Haematococcus algae solution into the liquid-passing pipe being installed on the top of the liquid storage tank, a plurality of cultivation groups being arranged on the outside of the main channel pipe, the cultivation groups comprising a liquid-introduction pipe connected to the side wall of the liquid-passing pipe, a plurality of cultivation cylinders sleeved on one side of the liquid-introduction pipe, and a liquid-passing valve sleeved on a port in the liquid-introduction pipe;

[0007] A flipping group for controlling the rotation of a plurality of liquid introduction tubes is arranged inside the main channel tube, and the flipping group includes a main rotor sleeved inside the bottom of the main channel tube, a plurality of transmission cylinders arranged above the main rotor, and a servo motor for driving the main rotor to rotate; the transmission cylinder is located between two adjacent culture groups above and below, a gear sleeve is sleeved at the inner end of the liquid introduction tube, and toothed discs are arranged on the upper and lower surfaces of the transmission cylinder, and the gear sleeve is meshed with the toothed discs above and below it.

[0008] As a further improvement of the present technical solution, a connecting pipe is provided at the center of the top surface of the liquid storage tank, and the liquid-passing pipe is tightly fitted with the connecting pipe. The water inlet end of the water pump is provided with a pipe extending to the bottom of the liquid storage tank, and the water outlet end of the water pump is provided with a pump liquid pipe. The pump liquid pipe passes through the central axis of the connecting pipe and bends upward, and the bottom end of the liquid-passing pipe is fitted with the vertical section of the pump liquid pipe.

[0009] As a further improvement of the present technical solution, one end of the liquid guide tube is closed and the other end thereof is connected with a sleeve and a cannula in sequence, the outer wall of the main channel tube is connected with a plurality of liquid distribution tubes at equal intervals along its axial direction and in a circular shape, the sleeve is correspondingly socketed with the liquid distribution tubes, the outer wall of the liquid passage tube is provided with a plurality of liquid passage ports corresponding to the positions of the plurality of liquid distribution tubes, and the cannula is correspondingly plugged with the liquid passage ports.

[0010] As a further improvement of the technical solution, a plurality of drainage tubes are evenly spaced on one side of the drainage tube, and the port of the culture tube is tightly fitted with the drainage tube, wherein the outer diameters of the drainage tube, sleeve and cannula tend to gradually decrease.

[0011] As a further improvement of the technical solution, the outer end side surface of the sleeve is symmetrically provided with a slot, the gear sleeve is adaptively matched with the sleeve, and the inner wall of the gear sleeve is symmetrically provided with convex strips, and the convex strips are plug-fitted with the slot.

[0012] As a further improvement of the technical solution, the output shaft of the servo motor passes through the main channel pipe, and the shaft end is coaxially connected with a transmission gear, and the bottom top surface of the main rotary cylinder is provided with a gear disk meshing with the transmission gear.

[0013] As a further improvement of the present technical solution, annular grooves are provided in the middle of the sides of the main rotary cylinder and the transmission cylinder, and bayonet holes are provided on the outer wall of the main channel pipe and between each of the upper and lower adjacent liquid distribution tubes, and an arc-shaped block is clamped in the bayonet hole, and the inner end of the block is clamped and slidably engaged with the annular groove.

[0014] As a further improvement of the present technical solution, the liquid passage valve is in the shape of a stepped cylinder and a sleeve is arranged on the central axis of its small diameter end, a valve plug is sleeved on the outer side of the sleeve, a rubber band is sleeved on the inner wall of the small diameter end of the liquid passage valve, and a retaining ring is arranged, the valve plug is made of silicone in an annular structure and its outer diameter is smaller than the inner diameter of the liquid passage valve and larger than the inner diameter of the retaining ring.

[0015] As a further improvement of the technical solution, a liquid injection pipe is provided on the top side wall of the liquid storage tank, a plurality of support seats are provided in a ring shape on the bottom of the liquid storage tank, a support platform is used on the outer side of the bottom of the main pipe, and the support platform is overlapped with the top of the connecting pipe.

[0016] As a further improvement of the technical solution, through openings are provided on the upper and lower outer parts of the main rotating cylinder and the transmission cylinder, and the through openings do not penetrate the annular groove.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The Haematococcus pluvialis cultivation device based on the ecological niche principle has several cultivation groups distributed outside the main channel, and the Haematococcus pluvialis solution prepared in the liquid storage tank is pumped into the several cultivation groups by a water pump, so as to form ecological niches at different positions. The Haematococcus pluvialis cultivation device designed using the ecological niche principle can usually maximize the use of sunlight and space resources.

[0019] 2. The Haematococcus algae cultivation device based on the ecological niche principle, through the flipping group arranged inside the main channel pipe, starts the servo motor to work at a low speed, and drives the main rotary cylinder to drive a number of liquid introduction tubes to rotate synchronously in different directions, so that the Haematococcus algae solution in the culture cylinder does not stand still or hang on the wall, and thus fully receives light to grow. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the various components in the figures are only schematic, used to help understand the present invention, and are not specifically limited to the shapes and proportional dimensions of the various components of the present invention. Those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to the teachings of the present invention.

[0021] Figure 1 It is a schematic diagram of the overall assembly structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the local structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the assembly structure of the culture group and the turning group of the present invention;

[0024] Figure 4It is a schematic diagram of the structure of the liquid storage tank of the present invention;

[0025] Figure 5 This is a schematic diagram of the full cross-section structure of the main channel pipe of the present invention;

[0026] Figure 6 It is a schematic diagram of the partial assembly structure of the flipping group of the present invention;

[0027] Figure 7 This is a schematic diagram of the assembly structure of the culture group of the present invention;

[0028] Figure 8 It is a disassembled diagram of the liquid guide tube of the present invention;

[0029] Fig. 9 This is a disassembled diagram of the liquid-passing valve of the present invention;

[0030] The meaning of each number in the figure is:

[0031] 100, liquid storage tank; 101, connecting pipe; 102, liquid injection pipe; 103, support seat; 110, main channel pipe; 111, liquid pipe; 112, liquid distribution pipe; 113, liquid port; 114, bayonet; 115, clamping block; 116, support platform; 120, water pump; 121, pump liquid pipe;

[0032] 200, culture group; 210, liquid introduction tube; 211, liquid discharge tube; 212, sleeve; 213, cannula; 214, slot; 220, culture tube; 230, gear sleeve; 231, convex strip; 240, liquid valve; 241, sleeve; 242, valve plug; 2421, rubber band; 243, retaining ring;

[0033] 300, flipping group; 310, main rotating cylinder; 320, transmission cylinder; 321, ring groove; 322, through port; 330, servo motor; 331, transmission gear; 340, gear plate. DETAILED DESCRIPTION

[0034] The details of the present invention can be more clearly understood by combining the accompanying drawings with the description of the specific embodiments of the present invention. However, the specific embodiments of the present invention described herein are only used for the purpose of explaining the present invention and cannot be understood as limiting the present invention in any way. Under the guidance of the present invention, technicians can conceive of any possible variations based on the present invention, which should be regarded as falling within the scope of the present invention. The terms "installation" and "connection" should be understood in a broad sense, which can be directly connected or indirectly connected through an intermediate medium.

[0035] The terms "central axis", "vertical", "horizontal", "front", "back", "up", "down", "left", "right", "top", "bottom", "inside", "outside" and the like used herein to indicate positions or positional relationships are based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0036] See also Figure 1-Figure 9 As shown, the present invention provides a Haematococcus algae cultivation device based on the ecological niche principle, including a liquid storage tank 100 for storing a Haematococcus algae solution, a main channel pipe 110 is connected and arranged in the middle of the top surface of the liquid storage tank 100, a liquid through pipe 111 is suspended on the central axis of the main channel pipe 110, a water pump 120 for pumping the Haematococcus algae solution into the liquid through pipe 111 is installed on the top of the liquid storage tank 100, and a liquid injection pipe 102 is connected and arranged on the top side wall of the liquid storage tank 100 for replenishing the Haematococcus algae solution into the liquid storage tank 100; a plurality of support seats 103 are arranged in an annular shape at the bottom of the liquid storage tank 100 to prevent the main channel pipe 110 from tipping over; a support platform 116 is used on the outer side of the bottom of the main channel pipe 110, and the support platform 116 overlaps and cooperates with the top of the connecting pipe 101 to play a limiting role;

[0037] A number of culture groups 200 are arranged on the outside of the main channel pipe 110, and the culture groups 200 include a liquid inlet pipe 210 connected to the side wall of the liquid-passing pipe 111, a number of culture cylinders 220 sleeved on one side of the liquid inlet pipe 210, and a liquid valve 240 sleeved on the inner port of the liquid inlet pipe 210; the extension length of the support seat 103 is at least equal to the length of the liquid inlet pipe 210, which has an anti-dumping effect; the prepared Haematococcus algae solution in the liquid storage tank 100 is pumped into the number of culture groups 200 through the water pump 120, and ecological niches are formed at different positions. The Haematococcus algae cultivation device designed using the ecological niche principle can usually maximize the use of sunlight and space resources.

[0038] Specifically, a connecting pipe 101 is provided at the center of the top surface of the liquid storage tank 100, and a liquid-passing pipe 111 is tightly sleeved with the connecting pipe 101. A pipe extending to the bottom of the liquid storage tank 100 is sleeved at the water inlet end of the water pump 120, and a pumping liquid pipe 121 is sleeved at the water outlet end of the water pump 120. The pumping liquid pipe 121 penetrates the central axis of the connecting pipe 101 and bends upward. The bottom end of the liquid-passing pipe 111 is sleeved with the vertical section of the pumping liquid pipe 121, so that the Haematococcus algae solution is transported to the liquid-passing pipe 111 through the pumping liquid pipe 121;

[0039] One end of the liquid guide tube 210 is closed and the other end thereof is connected with a sleeve 212 and a cannula 213 in sequence. The outer wall of the main channel tube 110 is connected with a plurality of liquid distributors 112 along its axial direction and in a circular shape at equal intervals. The sleeve 212 is correspondingly sleeved with the liquid distributors 112. The outer diameter of the liquid distributors 112 increases from the outer end to the inner end, so that the liquid distributors 112 increase the strength of the liquid guide tube 210. The outer wall of the liquid passage tube 111 is provided with a plurality of liquid passage ports 113 corresponding to the positions of the plurality of liquid distributors 112. The cannula 213 is correspondingly plugged with the liquid passage ports 113. The Haematococcus algae solution in the liquid passage tube 111 is transferred to the liquid guide tube 210 through the plurality of liquid passage ports 113.

[0040] A plurality of drainage pipes 211 are evenly spaced and connected on one side of the liquid introduction pipe 210. The port of the culture tube 220 is tightly fitted with the drainage pipe 211. The Haematococcus algae solution in the liquid introduction pipe 210 is transferred to the culture tube 220 for culture through the drainage pipe 211. The culture tube 220 is made of a transparent material so that the Haematococcus algae inside it can receive sunlight. The outer diameters of the liquid introduction pipe 210, the sleeve 212 and the insertion tube 213 tend to gradually decrease, thereby forming a step shape for limited insertion.

[0041] Furthermore, the liquid-passing valve 240 is in a stepped cylindrical shape and a sleeve 241 is provided on the central axis of its small-diameter end. The small-diameter section of the liquid-passing valve 240 is sleeved in the insert tube 213, and the large-diameter section is sleeved in the sleeve 212 to form a limited sleeve connection; a valve plug 242 is sleeved on the outer side of the sleeve 241, and a rubber band 2421 is sleeved in the sleeve 241, and the outward end of the rubber band 2421 is bonded and fixed to the inner end of the sleeve 241; a retaining ring 243 is tightly sleeved on the inner wall of the small-diameter end of the liquid-passing valve 240, and a straight rod is provided in the center of the retaining ring 243, and the straight rod is clamped and matched with the outward end of the sleeve 241;

[0042] The valve plug 242 is made of silicone in an annular structure and its outer diameter is smaller than the inner diameter of the liquid valve 240 and larger than the inner diameter of the retaining ring 243. Under normal circumstances, the valve plug 242 receives the rebound force of the rubber band 2421 and abuts against the inner side of the retaining ring 243, forming a state of blocking the liquid guide tube 210. When the red algae solution is pumped into the liquid guide tube 111, the valve plug 242 will be pushed back and enter the liquid guide tube 210 until it is filled with several culture tubes 220. The solution in the liquid guide tube 210 in turn squeezes the valve plug 242 to abut against the retaining ring 243 to form a blockage again, thus completing the liquid injection process.

[0043] Specifically, in order to prevent the Haematococcus from hanging on the wall and sinking to the bottom when it is stationary, thereby affecting the absorption of sunlight; a flip group 300 for controlling the rotation of a plurality of liquid-introducing tubes 210 is arranged inside the main channel pipe 110, and the flip group 300 includes a main rotor 310 sleeved in the bottom of the main channel pipe 110, a plurality of transmission cylinders 320 arranged above the main rotor 310, and a servo motor 330 for driving the main rotor 310 to rotate; the servo motor 330 is fixedly connected to the side wall of the support platform 116 by bolts, the output shaft of the servo motor 330 passes through the main channel pipe 110, and the shaft end is coaxially connected with a transmission gear 331, and the bottom top surface of the main rotor 310 is provided with a toothed disc 340 meshing with the transmission gear 331;

[0044] The transmission cylinder 320 is located between two adjacent culture groups 200, and a gear sleeve 230 is sleeved on the inner end of the liquid introduction tube 210. A toothed disc 340 is provided on the upper and lower surfaces of the transmission cylinder 320, and the gear sleeve 230 is meshed with the toothed disc 340 above and below it; that is, a plurality of transmission cylinders 320 and a plurality of gear sleeves 230 are meshed and linked, and by starting the servo motor 330 to work at a low speed, the main rotary cylinder 310 is driven to drive the plurality of liquid introduction tubes 210 to rotate synchronously in different directions, so that the Haematococcus algae solution in the culture cylinder 220 does not stand still or hang on the wall, and is fully exposed to light for growth.

[0045] Furthermore, a slot 214 is symmetrically provided on the outer side of the sleeve 212, the tooth sleeve 230 is matched with the sleeve 212, and the inner wall of the tooth sleeve 230 is symmetrically provided with a protrusion 231, which is plugged into the slot 214, so that the tooth sleeve 230 can stably drive the drainage tube 210 to rotate synchronously.

[0046] Furthermore, an annular groove 321 is provided in the middle of the side of the main rotor 310 and the transmission cylinder 320, and a bayonet 114 is provided on the outer wall of the main channel pipe 110 and between each upper and lower adjacent liquid dispensing tube 112, and an arc-shaped clamping block 115 is clamped in the bayonet 114, and the inner end of the clamping block 115 is clamped and slidably matched with the annular groove 321, that is, the main rotor 310 and the transmission cylinder 320 are supported by the clamping block 115 to rotate in the air; the upper and lower parts of the outer sides of the main rotor 310 and the transmission cylinder 320 are provided with through holes 322, and the through holes 322 do not penetrate the annular groove 321. The through holes 322 reduce materials without affecting the overall strength of the main rotor 310 and the transmission cylinder 320, thereby saving costs.

[0047] During the cultivation of the Haematococcus algae cultivation device based on the ecological niche principle of the present invention, the prepared Haematococcus algae solution is first injected from the injection pipe 102 into the liquid storage tank 100 for storage, and then a plurality of culture cylinders 220 are installed on the liquid inlet pipe 210; the water pump 120 is then started to pump the prepared Haematococcus algae solution in the liquid storage tank 100 into the liquid pipe 121 and transported to the liquid passage pipe 111, the Haematococcus algae solution in the liquid passage pipe 111 is transferred to the liquid inlet pipe 210 through a plurality of liquid passage ports 113, and the Haematococcus algae solution in the liquid inlet pipe 210 is transferred to the culture cylinder 220 through the liquid discharge pipe 211 for cultivation, so that the Haematococcus algae inside the Haematococcus algae are exposed to sunlight, that is, ecological niches are formed at different positions, and the Haematococcus algae cultivation method designed by using the ecological niche principle can maximize the use of sunlight and space resources;

[0048] In order to prevent the Haematococcus algae from hanging on the wall or sinking to the bottom when it is stationary, thereby affecting the absorption of sunlight, the servo motor 330 is started to work at a low speed, and the main rotary cylinder 310 is driven to drive the plurality of liquid introduction tubes 210 in a layer above it to rotate, and the gear sleeve 230 of this layer drives the transmission cylinder 320 above to rotate, and then drives the plurality of liquid introduction tubes 210 in the second layer above to rotate, and then drives the transmission cylinder 320 above to rotate through the gear sleeve 230 of this layer. In this transmission mode, all the culture groups 200 outside the main channel 110 are driven to rotate at a low speed while receiving light, so that the Haematococcus algae solution in the culture cylinder 220 does not stand still or hang on the wall, and can fully receive light to grow.

[0049] It should be noted that the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A Haematococcus algae cultivation device based on the ecological niche principle, comprising a liquid storage tank (100) for storing a Haematococcus algae solution, characterized in that: A main channel pipe (110) is provided in the middle of the top surface of the liquid storage tank (100), a liquid passage pipe (111) is suspended on the central axis of the main channel pipe (110), a water pump (120) for pumping Haematococcus algae solution into the liquid passage pipe (111) is installed on the top of the liquid storage tank (100), a plurality of culture groups (200) are provided on the outside of the main channel pipe (110), and the culture groups (200) include a liquid inlet pipe (210) connected to the side wall of the liquid passage pipe (111), a plurality of culture cylinders (220) sleeved on one side of the liquid inlet pipe (210), and a liquid inlet valve (240) sleeved on the inner port of the liquid inlet pipe (210); The main channel tube (110) is provided with a flipping group (300) for controlling the rotation of a plurality of liquid introduction tubes (210), and the flipping group (300) comprises a main rotor (310) sleeved in the bottom of the main channel tube (110), a plurality of transmission cylinders (320) arranged above the main rotor (310), and a servo motor (330) for driving the main rotor (310) to rotate; the transmission cylinder (320) is located between two adjacent culture groups (200) above and below, a gear sleeve (230) is sleeved at the inner end of the liquid introduction tube (210), and toothed discs (340) are provided on the upper and lower surfaces of the transmission cylinder (320), and the gear sleeve (230) is meshed with the toothed discs (340) above and below it.

2. The Haematococcus algae cultivation device based on the ecological niche principle according to claim 1 is characterized in that: A connecting pipe (101) is provided at the center of the top surface of the liquid storage tank (100), the liquid-passing pipe (111) is tightly sleeved with the connecting pipe (101), the water inlet end of the water pump (120) is sleeved with a pipeline extending to the bottom of the liquid storage tank (100), the water outlet end of the water pump (120) is sleeved with a pumping pipe (121), the pumping pipe (121) penetrates the central axis of the connecting pipe (101) and bends upward, and the bottom end of the liquid-passing pipe (111) is sleeved with the vertical section of the pumping pipe (121).

3. The Haematococcus algae cultivation device based on the niche principle according to claim 2 is characterized in that: One end of the liquid guide tube (210) is closed and the other end is connected with a sleeve (212) and an insertion tube (213) in sequence. The outer wall of the main channel tube (110) is connected with a plurality of liquid distribution tubes (112) at equal intervals along its axial direction and in a circular shape. The sleeve (212) and the liquid distribution tubes (112) are correspondingly sleeved and matched. The outer wall of the liquid passage tube (111) is provided with a plurality of liquid passage ports (113) corresponding to the positions of the plurality of liquid distribution tubes (112). The insertion tube (213) and the liquid passage ports (113) are correspondingly plugged and matched.

4. The Haematococcus algae cultivation device based on the ecological niche principle according to claim 3 is characterized in that: A plurality of drainage tubes (211) are arranged at equal intervals on one side of the liquid introduction tube (210), and the port of the culture cylinder (220) is tightly fitted with the drainage tube (211), wherein the outer diameters of the liquid introduction tube (210), the sleeve (212) and the cannula (213) tend to gradually decrease.

5. The Haematococcus algae cultivation device based on the niche principle according to claim 4 is characterized in that: The outer end side surface of the sleeve (212) is symmetrically provided with a clamping groove (214), the tooth sleeve (230) is adaptively matched with the sleeve (212), and the inner wall of the tooth sleeve (230) is symmetrically provided with a convex strip (231), and the convex strip (231) is plug-fitted with the clamping groove (214).

6. The Haematococcus algae cultivation device based on the ecological niche principle according to claim 5 is characterized in that: The output shaft of the servo motor (330) passes through the main channel pipe (110), and the shaft end is coaxially connected with a transmission gear (331). The top surface of the bottom of the main rotary cylinder (310) is provided with a toothed disc (340) meshing with the transmission gear (331).

7. The Haematococcus algae cultivation device based on the ecological niche principle according to claim 6 is characterized in that: An annular groove (321) is provided in the middle of the side surfaces of the main rotating cylinder (310) and the transmission cylinder (320); a bayonet (114) is provided on the outer wall of the main channel pipe (110) and between each of the upper and lower adjacent liquid dispensing pipes (112); an arc-shaped clamping block (115) is clamped in the bayonet (114); and the inner end of the clamping block (115) is clamped and slidably matched with the annular groove (321).

8. The Haematococcus algae cultivation device based on the ecological niche principle according to claim 7 is characterized in that: The liquid-passing valve (240) is in the shape of a stepped cylinder and a sleeve (241) is arranged on the central axis of its small-diameter end; a valve plug (242) is sleeved on the outer side of the sleeve (241); a rubber band (2421) is sleeved inside the sleeve (241); a retaining ring (243) is arranged on the inner wall of the small-diameter end of the liquid-passing valve (240); the valve plug (242) is made of silicone and has an annular structure and an outer diameter thereof is smaller than the inner diameter of the liquid-passing valve (240) and larger than the inner diameter of the retaining ring (243).

9. The Haematococcus algae cultivation device based on the ecological niche principle according to claim 8 is characterized in that: The top side wall of the liquid storage tank (100) is connected to a liquid injection pipe (102), the bottom of the liquid storage tank (100) is provided with a plurality of support seats (103) in a ring shape, and a support platform (116) is used on the outer side of the bottom of the main channel pipe (110), and the support platform (116) overlaps with the top of the connecting pipe (101).

10. The Haematococcus algae cultivation device based on the ecological niche principle according to claim 9, characterized in that: The upper and lower outer portions of the main rotating cylinder (310) and the transmission cylinder (320) are both provided with through openings (322), and the through openings (322) do not penetrate the annular groove (321).

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