A raceway pond type microalgae cultivation device
By introducing a bottom drainage pipe design into the racetrack-type microalgae cultivation device, and utilizing a combination of a conical temporary storage shell and an inclined tube, the problem of incomplete water pump extraction was solved, enabling rapid discharge of microalgae and culture medium, thereby reducing energy consumption and costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI FONDIN BIO TECH
- Filing Date
- 2025-07-02
- Publication Date
- 2026-06-12
AI Technical Summary
Existing racetrack-style microalgae cultivation devices suffer from incomplete water pumping due to their flat-bottom design, resulting in residual liquid inside and slow drainage efficiency.
The bottom-external drainage pipe design includes a conical temporary storage shell, a one-way valve, a connecting pipe, a transfer box, a discharge inclined pipe, and an external connecting pipe, forming a liquid guiding channel. The conical design and the 45-degree setting of the inclined pipe accelerate liquid discharge and reduce residual liquid.
It enables rapid discharge of microalgae and culture medium, reduces energy consumption and costs, minimizes residual liquid, and eliminates the need for water pumps during operation.
Smart Images

Figure CN224350643U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of microalgae cultivation technology, specifically a racetrack-type microalgae cultivation device. Background Technology
[0002] Raceway-style microalgae cultivation is a traditional and common method for large-scale microalgae cultivation. Its core is to use a shallow, circular pool (usually equipped with a stirring device) shaped like a racetrack for microalgae cultivation. Raceway-style microalgae cultivation is a technology that is "cost-effective but has limited controllability," and is suitable for scenarios that are cost-sensitive and have relaxed cultivation conditions.
[0003] However, in actual operation, the inventors found the following problems: the existing racetrack-type microalgae cultivation device uses a water pump to extract the microalgae and culture medium inside, but the flat bottom design of the racetrack-type microalgae cultivation device causes the water pump to not extract completely, leaving residual liquid inside and slow discharge efficiency.
[0004] Based on this, the present invention provides a racetrack-type microalgae cultivation device. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a racetrack-type microalgae cultivation device with the advantage of a bottom-external drainage pipe design that accelerates liquid discharge. This solves the problem mentioned in the background technology that existing racetrack-type microalgae cultivation devices use water pumps to extract internal microalgae and culture medium, but the flat-bottom design of the racetrack-type microalgae cultivation device leads to incomplete pumping, leaving residual liquid inside and slow discharge efficiency.
[0006] This utility model provides the following technical solution: a racetrack-type microalgae cultivation device, comprising a racetrack-type microalgae cultivation pond, wherein two sets of conical temporary storage shells are fixedly installed at the bottom of the racetrack-type microalgae cultivation pond, and one-way valves are provided at the bottom of the two sets of conical temporary storage shells. A connecting pipe is fixedly connected to the other end of the one-way valves, and a transfer box is fixedly connected to the side of the connecting pipe. Three sets of discharge inclined pipes are provided on the side of the transfer box, and a conveying shell is fixedly connected to the other end of the three sets of discharge inclined pipes. An external pipe is fixedly connected to the side of the conveying shell.
[0007] Preferably, the top of the racetrack-type microalgae culture pond is fitted with a transparent canopy, and the transparent canopy and the top of the racetrack-type microalgae culture pond are provided with screw grooves, and bolts are threaded into the internal screw grooves.
[0008] Preferably, the three sets of discharge inclined tubes are arranged at a 45-degree angle.
[0009] Preferably, the racetrack-type microalgae culture pond has a circular trough and a C-shaped liquid guiding trough inside, and the C-shaped liquid guiding trough and the circular trough are connected.
[0010] Preferably, the bottom of the racetrack-type microalgae culture pond is fixedly connected to two sets of support legs on both sides, and the sides of the two sets of support legs are fixedly connected to reinforcing beams.
[0011] Preferably, a growth gas inlet pipe is fixedly connected to the top of the transparent canopy, and the growth gas inlet pipe is connected to an external input pipe via a flange.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] This racetrack-style microalgae cultivation device allows liquid inside the racetrack-style microalgae cultivation tank to drain downwards through a conical temporary storage shell by opening a one-way valve. During the drainage process, a C-shaped liquid guide trough and a circular trough form a liquid guide channel, accelerating the outflow of internal liquid. Under the action of the conical temporary storage shell, the liquid enters the interior of the transfer tank through the side connecting pipe of the one-way valve. The culture medium and microalgae inside the transfer tank are quickly discharged into the delivery shell using three sets of 45-degree angled discharge pipes on the side of the transfer tank. The delivery shell is connected to an external container through an external pipe for rapid discharge and transfer. The entire operation achieves rapid discharge of the racetrack-style microalgae cultivation device with minimal residual liquid, and no water pump is required during operation. Compared with existing technologies, this solution is more practical in design and reduces energy consumption and costs. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model;
[0015] Figure 2 This utility model Figure 1 A schematic diagram of the structure viewed from below;
[0016] Figure 3 This is a schematic diagram of the internal structure of the racetrack-type microalgae culture pond of this utility model.
[0017] In the picture:
[0018] 1. Raceway-style microalgae cultivation pond; 101. Transparent roof; 102. Bolts; 103. Growth gas inlet pipe;
[0019] 2. Support legs; 201. Reinforcing crossbeam;
[0020] 3. Conical temporary storage shell; 301. One-way valve; 302. Connecting pipe; 303. Transfer box; 304. Discharge inclined pipe; 305. Conveying shell; 306. External pipe; 307. C-type liquid guide groove; 308. Circular groove. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-3 A racetrack-style microalgae cultivation device includes a racetrack-style microalgae cultivation tank 1. Two sets of conical temporary storage shells 3 are fixedly installed at the bottom of the racetrack-style microalgae cultivation tank 1. A one-way valve 301 is installed at the bottom of the two sets of conical temporary storage shells 3. A connecting pipe 302 is fixedly connected to the other end of the one-way valve 301. A transfer box 303 is fixedly connected to the side of the connecting pipe 302. Three sets of discharge inclined pipes 304 are installed on the side of the transfer box 303. A conveying shell 305 is fixedly connected to the other end of the three sets of discharge inclined pipes 304. An external pipe 306 is fixedly connected to the side of the conveying shell 305. By opening the one-way valve 301, the liquid inside the racetrack-style microalgae cultivation tank 1 is discharged downwards through the conical temporary storage shells 3. During the discharge process, a C-shaped liquid guide trough 307 and a circular... The groove 308 can form a liquid guiding channel to accelerate the outflow of internal liquid. Under the action of the conical temporary storage shell 3 with conical design, the liquid enters the interior of the transfer box 303 through the side connecting pipe 302 of the one-way valve 301. The culture medium and microalgae inside the transfer box 303 can be quickly discharged into the delivery shell 305 by the three sets of 45-degree discharge inclined pipes 304 on the side of the transfer box 303. The delivery shell 305 is connected to the external container through the external pipe 306 for rapid discharge and transfer. In the whole operation, the racetrack pool-type microalgae cultivation device can achieve rapid discharge with little residual liquid. Moreover, there is no need to pump water during the operation. Compared with the existing technology, this solution is more practical in design and reduces the required energy consumption and cost.
[0023] The racetrack-type microalgae culture pond 1 has a transparent roof 101 attached to its top. The transparent roof 101 and the top of the racetrack-type microalgae culture pond 1 are provided with screw grooves. Bolts 102 are connected to the internal threads of the screw grooves. The transparent design of the transparent roof 101 allows for better light exposure. The characteristics of the bolts 102 enable the racetrack-type microalgae culture pond 1 to switch between closed and open culture states, and also facilitate internal cleaning.
[0024] Among them, the three sets of discharge inclined tubes 304 are set at 45 degrees. The three sets of discharge inclined tubes 304 with a 45-degree design can quickly discharge liquid and indirectly form a diversion effect.
[0025] Among them, the racetrack-type microalgae culture pond 1 has a circular trough 308 and a C-shaped liquid guiding trough 307 inside, and the C-shaped liquid guiding trough 307 and the circular trough 308 are connected.
[0026] Among them, the bottom of the racetrack-type microalgae culture pond 1 is fixedly connected to two sets of support legs 2 on both sides, and the sides of the two sets of support legs 2 are fixedly connected to reinforcing crossbeams 201.
[0027] The transparent canopy 101 is fixedly connected to a growth gas inlet pipe 103. The growth gas inlet pipe 103 is connected to an external input pipe via a flange. The gas required for microalgae cultivation can be injected through the growth gas inlet pipe 103 and the external input pipe, making it convenient to use.
[0028] Working principle: By opening the one-way valve 301, the liquid inside the racetrack-type microalgae culture tank 1 is discharged downward through the conical temporary storage shell 3. During the discharge process, the C-shaped liquid guide groove 307 and the circular groove 308 can form a liquid guide channel to accelerate the outflow of the internal liquid. Under the action of the conical temporary storage shell 3, the liquid enters the interior of the transfer box 303 through the side connecting pipe 302 of the one-way valve 301. The three sets of 45-degree discharge inclined pipes 304 on the side of the transfer box 303 can quickly discharge the culture medium and microalgae inside the transfer box 303 into the delivery shell 305. The delivery shell 305 is connected to the external container through the external pipe 306 for rapid discharge and transfer.
[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A racetrack-style microalgae cultivation device, characterized in that, The microalgae culture pond (1) includes a racetrack-type microalgae culture pond (1). Two sets of conical temporary storage shells (3) are fixedly installed at the bottom of the racetrack-type microalgae culture pond (1). One-way valves (301) are provided at the bottom of the two sets of conical temporary storage shells (3). A connecting pipe (302) is fixedly connected to the other end of the one-way valve (301). A transfer box (303) is fixedly connected to the side of the connecting pipe (302). Three sets of discharge inclined pipes (304) are provided on the side of the transfer box (303). A conveying shell (305) is fixedly connected to the other end of the three sets of discharge inclined pipes (304). An external pipe (306) is fixedly connected to the side of the conveying shell (305).
2. The racetrack-type microalgae cultivation device according to claim 1, characterized in that: The top of the racetrack-type microalgae culture pond (1) is fitted with a transparent roof (101), and the transparent roof (101) and the top of the racetrack-type microalgae culture pond (1) are provided with screw grooves, and bolts (102) are threaded inside the screw grooves.
3. The racetrack-type microalgae cultivation device according to claim 1, characterized in that: The three sets of discharge inclined tubes (304) are set at a 45-degree angle.
4. The racetrack-type microalgae cultivation device according to claim 1, characterized in that: The racetrack-type microalgae culture pond (1) has a circular trough (308) and a C-shaped liquid guiding trough (307) inside, and the C-shaped liquid guiding trough (307) and the circular trough (308) are connected.
5. The racetrack-type microalgae cultivation device according to claim 1, characterized in that: The bottom sides of the racetrack-type microalgae culture pond (1) are fixedly connected to two sets of support legs (2), and the sides of the two sets of support legs (2) are fixedly connected to reinforcing beams (201).
6. The racetrack-type microalgae cultivation device according to claim 2, characterized in that: The top of the transparent canopy (101) is fixedly connected to a growth gas inlet pipe (103), and the growth gas inlet pipe (103) is connected to an external input pipe via a flange.