Microalgae sterilization sealed container

By combining ultraviolet germicidal lamps and control modules, the problems of residue and high cost of traditional chemical disinfectants in microalgae cultivation are solved, achieving the maintenance of a sterile environment and the improvement of sterilization efficiency, thus ensuring the safety and success rate of microalgae cultivation.

CN224513494UActive Publication Date: 2026-07-17HENAN YUANZHI FOOD SCIENCE RESEARCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN YUANZHI FOOD SCIENCE RESEARCH CO LTD
Filing Date
2025-08-19
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional chemical bactericides have problems such as residues, inhibition of algal growth, environmental pollution, and high costs in microalgae cultivation, and it is difficult to maintain a sterile environment.

Method used

The system employs an ultraviolet germicidal lamp combined with a transparent tank and a control module. Sterilization is achieved without opening the lid through a sealed cap. Combined with a temperature sensor to monitor the culture environment, it ensures the aseptic state of microalgae culture.

Benefits of technology

It achieves the maintenance of a sterile environment, improves sterilization efficiency, reduces the frequency and cost of manual operation, and ensures the safety and success rate of microalgae cultivation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model belongs to the field of microalgae sterilization technology, specifically relating to a microalgae sterilization sealed container. It includes a container body with a sealing cap on top. A protective cover is fitted over the surface of the container body, and a valve is installed at the bottom of the protective cover, penetrating the cover and connecting to the bottom of the container body. An ultraviolet germicidal lamp is installed inside the protective cover. A temperature sensor is installed at the top of the sealing cap, with its bottom penetrating into the interior of the container body. A control module is installed on one side of the protective cover, electrically connected to both the ultraviolet germicidal lamp and the temperature sensor. Two one-way valves are installed at the top of the sealing cap, one for the culture medium inlet and the other for gas exchange. The inner wall of the protective cover is coated with a reflective coating. This utility model provides a microalgae sterilization sealed container that achieves a compact structure and sterilization without opening the lid, creating a sealed microalgae culture tank.
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Description

Technical Field

[0001] This utility model belongs to the field of microalgae sterilization technology, specifically relating to a microalgae sterilization sealed container. Background Technology

[0002] Microalgae are tiny algae capable of photosynthesis, typically composed of single cells, although multicellular species also exist. During microalgae cultivation, unwanted microorganisms or contaminants may be introduced into the external environment of the cultivation container, making microalgae susceptible to contamination by other microorganisms.

[0003] Traditional methods require the addition of chemical bactericides for sterilization. However, chemical sterilization can easily leave antibiotic residues, which can reduce the quality of algae powder or inhibit algae growth, and can also have long-term negative impacts on the ecological environment. Furthermore, some highly effective chemical bactericides are expensive, and long-term use of these chemicals can increase the cost of microalgae cultivation, further increasing management costs. Utility Model Content

[0004] The purpose of this invention is to provide a microalgae sterilization and sealing tank that can achieve sterilization without opening the lid, making it a compact, sealed microalgae culture tank.

[0005] The specific technical solution adopted by this utility model is as follows:

[0006] A microalgae sterilization sealed container includes a container body, a sealing cap installed on the top of the container body, a protective cover covering the surface of the container body, a pipe valve installed at the bottom of the protective cover, the pipe valve penetrating the protective cover and connecting to the bottom of the container body, an ultraviolet sterilization lamp installed inside the protective cover, a temperature sensor installed at the top of the sealing cap, the bottom of the temperature sensor penetrating into the interior of the container body, and a control module installed on one side of the protective cover, the control module being electrically connected to the ultraviolet sterilization lamp and the temperature sensor respectively.

[0007] Preferably, the top of the sealing cap is provided with a one-way valve, which is connected to the tank body. There are two one-way valves, one for the culture medium and the other for the gas exchange.

[0008] Preferably, the inner wall of the protective cover is coated with a reflective coating, which is a high-reflectivity aluminum powder coating.

[0009] Preferably, the protective cover is provided with observation windows on both the front and rear sides, and the observation windows are made of transparent material.

[0010] Preferably, the inner wall of the top of the sealing cover is provided with a stepped groove, and a protruding strip is fixedly connected to the bottom of the sealing cover, the protruding strip being adapted to the stepped groove.

[0011] Preferably, a sealing strip is fixedly connected to the bottom of the sealing cap, and a sealing groove is provided at the top of the tank body, with the sealing strip disposed inside the sealing groove.

[0012] Preferably, the ultraviolet germicidal lamps are arranged in a ring around the outer surface of the tank, and there are several ultraviolet germicidal lamps, which are evenly and fixedly installed on the inner wall of the protective cover.

[0013] The technical effects achieved by this utility model are as follows:

[0014] In this invention, the sealing cap can seal the tank, preventing external contaminants from polluting the internal microalgae. Simultaneously, the control module can set a timer to run an ultraviolet germicidal lamp that irradiates the transparent tank and the internal microalgae. The ultraviolet light penetrates the transparent tank and directly acts on the culture medium and microalgae for sterilization. The entire sterilization process does not require opening the sealing cap, which maintains a sterile environment inside the tank. A temperature sensor monitors the temperature inside the tank in real time; if the temperature exceeds the set temperature by the control module, the control module will automatically shut off the ultraviolet germicidal lamp, ensuring the optimal temperature environment for microalgae cultivation. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a bottom-view perspective view of the overall structure of this utility model;

[0017] Figure 3 This is a three-dimensional schematic diagram of the disassembled tank body and sealing cap of this utility model;

[0018] Figure 4 This is a three-dimensional schematic diagram of the internal structure of the protective cover of this utility model.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Tank body; 101. Sealing cover; 102. Pipe valve; 2. Protective cover; 201. Ultraviolet germicidal lamp; 202. Temperature sensor; 203. Control module; 204. Check valve; 3. Reflective coating; 4. Inspection window; 501. Stepped groove; 502. Raised strip; 601. Sealing strip; 602. Sealing groove. Detailed Implementation

[0021] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0022] like Figures 1-4 As shown, the microalgae sterilization and sealing tank includes a tank body 1, which is made of transparent quartz glass. A sealing cap 101 is installed on the top of the tank body 1. A protective cover 2 is fitted over the surface of the tank body 1. A pipe valve 102 is installed at the bottom of the protective cover 2, passing through the protective cover 2 and connecting to the bottom of the tank body 1. An ultraviolet germicidal lamp 201 is installed inside the protective cover 2. A temperature sensor 202 is installed at the top of the sealing cap 101, and the bottom of the temperature sensor 202 extends into the interior of the tank body 1. A control module 203 is installed on one side of the protective cover 2. The control module 203 is electrically connected to the ultraviolet germicidal lamp 201 and the temperature sensor 202, respectively. The sealing cap 101 ensures that the interior of the tank body 1 is sealed, preventing external pollutants, dust, or bacteria from entering the tank body 1, thereby maintaining the purity and sterility of the microalgae culture medium. The ultraviolet germicidal lamp 201 built into the protective cover 2 can effectively sterilize the surface of the tank body 1 and the surrounding environment. The internal culture medium is sterilized to inhibit the growth of harmful microorganisms, improving the safety and success rate of the culture. The protective cover 2 not only protects the ultraviolet germicidal lamp 201, but also has a bottom valve 102 to facilitate the discharge of the culture medium and the cleaning of the tank 1, ensuring ease of operation and simple equipment maintenance. The top temperature sensor 202 extends into the tank 1 to monitor the culture environment temperature in real time and promptly feeds back to the control module 203 to ensure that the environment temperature is maintained within a suitable range for microalgae growth, avoiding damage or death of microalgae due to abnormal temperature. The control module 203 is electrically connected to the ultraviolet lamp and the temperature sensor 202, and can automatically start and stop the ultraviolet germicidal lamp 201 according to temperature changes, realizing intelligent management, reducing the frequency of manual operation, reducing human error, improving operational convenience, and achieving a closed design of the tank 1 and separate design from the ultraviolet germicidal lamp 201 during the culture process, ensuring aseptic operation throughout the sterilization process.

[0023] like Figure 1 and Figure 3 As shown, the top of the sealing cap 101 is equipped with a one-way valve 204. The one-way valve 204 is connected to the tank body 1. There are two one-way valves 204, which are divided into a culture medium inlet and a gas exchange port. The culture medium inlet only allows the culture medium or nutrient solution to flow into the tank body 1 in one direction, preventing external air or microorganisms from flowing back into the tank with the liquid, thus avoiding the introduction of contaminants when adding culture medium. The one-way valve 204 of the gas exchange port only allows the exhaust gas in the tank body 1 to be discharged in one direction, and prevents external air from flowing back and causing contamination.

[0024] like Figure 4 As shown, the inner wall of the protective cover 2 is coated with a reflective coating 3, which is a high-reflectivity aluminum powder coating. The reflective coating 3 helps to distribute ultraviolet light evenly, making the ultraviolet irradiation inside the tank 1 more uniform, avoiding insufficient ultraviolet irradiation in some areas, which would lead to uneven sterilization effect. Uniform ultraviolet irradiation helps to promote the healthy cultivation of microalgae and the balance of sterilization treatment.

[0025] like Figure 1 and Figure 2 As shown, observation windows 4 are provided on both the front and rear sides of the protective cover 2. These windows are made of transparent material, allowing users to easily observe the microalgae cultivation status inside the tank 1, including microalgae growth, the clarity of the culture medium, and the presence of contaminants or sediment. This visualization design enables real-time monitoring of the microalgae cultivation progress, timely detection of problems, and reduction of potential risks. Simultaneously, external light can pass through the observation windows 4 to illuminate the tank 1 and the microalgae inside. Microalgae growth and reproduction typically rely on photosynthesis; the transparent observation windows 4 allow external light to pass through, providing the necessary light source to support the photosynthetic process of the microalgae. Sufficient light helps to increase the growth rate of microalgae and promote their healthy growth.

[0026] like Figure 3 As shown, the inner wall of the top of the sealing cap 101 is provided with a stepped groove 501, and a protrusion 502 is fixedly connected to the bottom of the sealing cap 101. The protrusion 502 is adapted to the stepped groove 501. The cooperation between the stepped groove 501 and the protrusion 502 allows the sealing cap 101 and the tank body 1 to form a tighter connection. A sealing strip 601 is fixedly connected to the bottom of the sealing cap 101, and a sealing groove 602 is opened at the top of the tank body 1. The sealing strip 601 is set inside the sealing groove 602. When the protrusion 502 on the sealing cap 101 is embedded in the stepped groove 501, it can effectively prevent the leakage of air or liquid and ensure the sealing of the tank body 1. The sealing strip 601 can effectively fill the gap between the sealing cap 101 and the tank body 1, ensuring a tighter connection between the two and improving the sealing of the tank body 1. This ensures that the culture environment inside the tank body 1 is completely sealed, preventing external pollutants from entering the tank body 1 and ensuring the purity and sterility of the microalgae culture medium.

[0027] like Figure 3 As shown, the ultraviolet germicidal lamps 201 are arranged in a ring around the outer surface of the tube body. There are several ultraviolet germicidal lamps 201, which are evenly and fixedly installed on the inner wall of the protective cover 2. The ultraviolet germicidal lamps 201 surround the outer surface of the tank body 1 and are evenly distributed to ensure that the ultraviolet rays can fully irradiate the tank body 1 and all areas inside it, thereby maximizing the sterilization efficiency, reducing dead corners, and ensuring that bacteria, viruses and other microorganisms inside and outside the tank body 1 are evenly and fully killed.

[0028] The working principle of this utility model is as follows: the sealing cover 101 can seal the tank 1 to prevent external pollutants from contaminating the microalgae inside. At the same time, the ultraviolet germicidal lamp 201 can be run by the timer setting of the control module 203 to irradiate the transparent tank 1 and the microalgae inside. The ultraviolet rays penetrate the transparent tank 1 and directly act on the culture medium and microalgae for sterilization. The entire sterilization process does not require opening the sealing cover 101, and the sealing cover 101 can maintain a sterile environment inside the tank. Meanwhile, the temperature sensor 202 can monitor the temperature inside the tank 1 in real time. When the temperature exceeds the temperature set by the control module 203, the control module 203 will automatically turn off the ultraviolet germicidal lamp 201 to ensure the optimal temperature environment for microalgae cultivation.

[0029] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A microalgae retort, characterized in that: The device includes a tank (1), a sealing cap (101) installed on the top of the tank (1), a protective cover (2) covering the surface of the tank (1), a pipe valve (102) installed at the bottom of the protective cover (2), the pipe valve (102) penetrating the protective cover (2) and connected to the bottom of the tank (1), an ultraviolet germicidal lamp (201) installed inside the protective cover (2), a temperature sensor (202) installed at the top of the sealing cap (101), the bottom of the temperature sensor (202) penetrating into the interior of the tank (1), and a control module (203) installed on one side of the protective cover (2), the control module (203) being electrically connected to the ultraviolet germicidal lamp (201) and the temperature sensor (202) respectively.

2. The microalgae retort according to claim 1, wherein: The top of the sealing cap (101) is provided with a one-way valve (204), which is connected to the tank (1). There are two one-way valves (204), which are divided into a culture medium inlet and a gas exchange port.

3. The microalgae retort according to claim 1, wherein: The inner wall of the protective cover (2) is coated with a reflective coating (3), which is a high-reflectivity aluminum powder coating.

4. The microalgae retort according to claim 1, wherein: The protective cover (2) is provided with observation windows (4) on both the front and rear sides, and the observation windows (4) are made of transparent material.

5. The microalgae retort according to claim 1, wherein: The inner wall of the top of the sealing cover (101) is provided with a stepped groove (501), and a protrusion (502) is fixedly connected to the bottom of the sealing cover (101), the protrusion (502) being adapted to the stepped groove (501).

6. The microalgae retort of claim 1, wherein: The bottom of the sealing cap (101) is fixedly connected with a sealing strip (601), and the top of the tank body (1) is provided with a sealing groove (602), and the sealing strip (601) is disposed inside the sealing groove (602).

7. The microalgae retort according to claim 1, wherein: The ultraviolet germicidal lamp (201) is arranged in a ring around the outer surface of the tank (1). There are several ultraviolet germicidal lamps (201), which are evenly fixedly installed on the inner wall of the protective cover (2).