Strain fermentation device for laboratory

Abstract

The utility model relates to the technical field of strain fermentation, and discloses a strain fermentation device for a laboratory, which comprises a fermentation tank, and an inner gas-liquid mixing component is arranged in the fermentation tank. The inner gas-liquid mixing assembly comprises a Venturi tube, an aeration head, a connecting ring plate, a connecting arc plate, a side end connecting plate piece, a sliding semicircular plate, a fixed semicircular plate, a connecting ring piece, a rotating rod piece, a connecting plate piece, an annular piece and a fixed threaded piece. According to the strain fermentation device for the laboratory, the internal gas-liquid mixing assembly is arranged, a manual gas valve is arranged on a pipeline, the internal air pressure is controlled, gas forms tiny bubbles when passing through a Venturi tube and an aeration head, the tiny bubbles are uniformly dispersed in fermentation liquid, the gas-liquid contact area is increased, the dissolved oxygen amount is increased, and the fermentation efficiency is improved. According to the strain fermentation device for the laboratory, the gas valve can be adjusted in time to control the gas inlet amount and the gas inlet time interval according to the aerobic characteristics and the fermentation stages of strains, the gas supply amounts of all the stages are inconsistent, and gas supply is carried out in a matched mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of strain fermentation, specifically to a laboratory strain fermentation device. BACKGROUND

[0002] In the field of biology and biotechnology, strain fermentation is a basic and crucial experimental operation. From traditional food fermentation industry to modern biological medicine, biological energy and many other fields, strain fermentation plays a key role. With the rapid development of biotechnology, the purity, yield and efficiency of fermentation products are increasingly demanding.

[0003] The prior art discloses a laboratory strain fermentation device with the announcement number CN219886090U, which comprises a fermentation tank, a plurality of fermentation grooves are equidistantly arranged in the interior of the fermentation tank, a temperature control plate is fixedly connected to the top of each fermentation groove, a heating groove is formed in the interior of each temperature control plate, an electric heating pipe is fixedly connected to the interior of each heating groove, a spraying pipe is fixedly connected to the interior of each fermentation groove below the temperature control plate, an air inlet pipe is fixedly connected to the outer side of the fermentation tank corresponding to one side of each fermentation groove, the side of the air inlet pipe away from the fermentation tank is provided with a solid structure, and a plug is arranged on the outer side of the air inlet pipe. The above-mentioned device can not only be more convenient for the operator to operate, but also can actually solve the problems of the strain fermentation, such as the inability to adjust the ventilation according to the number of strains and the change of the strain fermentation environment caused by taking out the strains for water adding, and greatly improves the operation quality and use efficiency compared with the traditional device.

[0004] The above-mentioned laboratory strain fermentation device can control the size of the air inlet groove on the air inlet pipe through the air inlet pipe and the plug, so as to control the size of the air inlet pipe in contact with the outside air, so that the operator can control the size of the air inlet groove according to the actual number of strains in the fermentation groove, so as to ensure the dryness degree of the air in the fermentation groove. However, the above-mentioned laboratory strain fermentation device cannot adjust the gas valve to control the air inlet amount and air inlet time interval according to the oxygen demand characteristics and fermentation stage of the strain, and the gas supply amount of all stages is consistent, which has a poor effect in use and needs to be improved. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a laboratory strain fermentation device to solve the problems in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a laboratory strain fermentation device, comprising a fermentation tank, a support foot is arranged on the surface of the fermentation tank, a surface temperature control assembly is arranged on the surface of the fermentation tank, a feeding part is arranged on the top of the fermentation tank, and an internal gas-liquid mixing assembly is arranged in the fermentation tank.

[0007] The inner gas-liquid mixing assembly comprises a Venturi tube, an aeration head, a connecting ring plate, a connecting arc plate, a side end connecting plate piece, a sliding semicircular plate, a fixed semicircular plate, a connecting ring piece, a rotating rod piece, a connecting plate piece, a ring piece and a fixed threaded piece, the Venturi tube is connected to the inner bottom end of the fermentation tank, the aeration head is fixedly connected to the top of the Venturi tube, the side end connecting plate piece is fixedly connected to the inner left side of the fermentation tank, the connecting arc plate is fixedly connected to the right side of the side end connecting plate piece, the connecting ring plate is fixedly connected to the surface of the connecting arc plate, the fixed semicircular plate is fixedly connected to the inner back of the fermentation tank, the sliding semicircular plate is slidingly connected to the bottom of the fixed semicircular plate, the top of the connecting ring piece is connected to the bottom of the sliding semicircular plate, the connecting plate piece is fixedly connected to the front of the fixed semicircular plate, the ring piece is fixedly connected to the top of the connecting plate piece, the inner thread groove is formed in the inner part of the ring piece, the fixed threaded piece is threadedly connected to the inner part of the ring piece, the connecting threaded hole with the same hole diameter as the inner thread groove is formed in the inner part of the sliding semicircular plate, and the fixed threaded piece is threadedly connected to the inner part of the sliding semicircular plate.

[0008] Preferably, the surface temperature control assembly comprises a connecting frame, a cooling liquid storage tank, a liquid pumping pump, a conveying pipe, a cooling circulating pipe, an inner liquid storage cylinder, a connecting column piece and a metal heat sink, the connecting frame is fixedly connected to the middle part of the surface of the fermentation tank, the cooling liquid storage tank is fixedly connected to the front of the connecting frame, the liquid pumping pump is fixedly connected to the top of the cooling liquid storage tank, the conveying pipe is fixedly connected to the top of the liquid pumping pump, the cooling circulating pipe is connected to the surface of the fermentation tank, the bottom end of the cooling circulating pipe is connected to the top of the connecting frame, the inner liquid storage cylinder is connected to the inner ring of the cooling circulating pipe, the inner liquid storage cylinder is connected to the surface of the fermentation tank, the connecting column piece is fixedly connected to the top of the inner liquid storage cylinder, and the metal heat sink is fixedly connected to the top of the connecting column piece.

[0009] Preferably, the inner ring of the cooling circulating pipe is provided with a groove, the diameter of the groove is matched with the diameter of the inner liquid storage cylinder, the groove is used for placing the inner liquid storage cylinder, the inner liquid storage cylinder is attached to the surface of the fermentation tank, the inner part of the inner liquid storage cylinder is provided with paraffin, when heat is generated during fermentation to increase the temperature, the phase change material absorbs heat to change phase, thereby preventing the temperature from sharply rising; when the temperature decreases, the phase change material releases heat to change reverse phase, thereby maintaining the temperature stable and controlling the surface temperature.

[0010] Preferably, one end of the conveying pipe away from the top of the liquid pumping pump is fixedly connected to the front of the cooling circulating pipe.

[0011] Preferably, the top of the fixed semicircular plate is fixedly connected with a connecting bearing piece, and the rotating rod piece is fixedly connected to the inner ring of the connecting bearing piece.

[0012] Preferably, the surface bottom of the rotating rod piece is provided with a threaded section, and the inner ring of the connecting ring piece is provided with an internal thread groove, and the connecting ring piece is threadedly connected to the surface bottom of the rotating rod piece.

[0013] Preferably, the top area of the sliding semicircular plate is equal to that of the fixed semicircular plate, and the diameter of the sliding semicircular plate is adapted to the inner diameter of the fermentation tank.

[0014] Compared with the prior art, the laboratory strain fermentation device has the following beneficial effects:

[0015] 1. The laboratory strain fermentation device is provided with an internal gas-liquid mixing assembly, a manual gas valve is arranged on the pipeline, the internal gas pressure is controlled, and when the gas passes through the Venturi tube and the aeration head, small bubbles are formed, which are uniformly dispersed in the fermentation liquid, the gas-liquid contact area is increased, the dissolved oxygen content is improved, and the laboratory strain fermentation device can adjust the gas valve in time according to the oxygen demand characteristics of the strain and the fermentation stage, so as to control the gas inlet amount and the gas inlet time interval, the gas supply amount of all stages is inconsistent, and the gas supply is adapted.

[0016] 2. The laboratory strain fermentation device is provided with a surface temperature control assembly, an internal liquid storage cylinder is arranged on the surface, a phase change material paraffin with a suitable phase change temperature is selected inside, and the paraffin is packaged inside the internal liquid storage cylinder; when heat is generated during fermentation to increase the temperature, the phase change material absorbs heat to change phase, thereby preventing the temperature from rising sharply; when the temperature decreases, the phase change material releases heat to change phase reversely, thereby maintaining the temperature stable, controlling the surface temperature, and being convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole three-dimensional structure schematic view of the utility model;

[0018] Figure 2 It is a three-dimensional schematic view of the fermentation tank and the internal gas-liquid mixing assembly of the utility model;

[0019] Figure 3 It is a three-dimensional structure schematic view of the utility model Figure 2 It is an enlarged structure schematic view of position A of the utility model;

[0020] Figure 4 It is a three-dimensional structure schematic view of the surface temperature control assembly of the utility model.

[0021] In the figure: 1, fermentation tank; 2, support foot stool; 3, surface temperature control assembly; 301, connecting frame; 302, cooling liquid storage tank; 303, liquid pump; 304, conveying pipe; 305, cooling circulation pipe; 306, inner liquid storage cylinder; 307, connecting column piece; 308, metal cooling fin; 4, feeding piece; 5, inner gas-liquid mixing assembly; 501, venturi; 502, aeration head; 503, connecting ring plate; 504, connecting arc plate; 505, side end connecting plate piece; 506, sliding half-round plate; 507, fixed half-round plate; 508, connecting ring piece; 509, rotating rod piece; 510, connecting plate piece; 511, ring piece; 512, fixed screw piece. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] Please refer to Figures 1-4 The present application provides the following technical solutions:

[0024] A laboratory strain fermentation device, comprising a fermentation tank 1, the surface of the fermentation tank 1 is provided with a support foot stool 2, the surface of the fermentation tank 1 is provided with a surface temperature control assembly 3, the top of the fermentation tank 1 is provided with a feeding piece 4, and the inside of the fermentation tank 1 is provided with an inner gas-liquid mixing assembly 5.

[0025] The inner gas-liquid mixing assembly 5 comprises a Venturi tube 501, an aeration head 502, a connecting ring plate 503, a connecting arc plate 504, a side end connecting plate 505, a sliding semicircular plate 506, a fixed semicircular plate 507, a connecting ring 508, a rotating rod 509, a connecting plate 510, a ring 511, and a fixing screw 512. The Venturi tube 501 is connected to the inner bottom end of the fermentation tank 1. The aeration head 502 is fixedly connected to the top of the Venturi tube 501. The side end connecting plate 505 is fixedly connected to the inner left side of the fermentation tank 1. The connecting arc plate 504 is fixedly connected to the right side of the side end connecting plate 505. The connecting ring plate 503 is fixedly connected to the surface of the connecting arc plate 504. The fixed semicircular plate 507 is fixedly connected to the inner back of the fermentation tank 1. The sliding semicircular plate 506 is slidingly connected to the bottom of the fixed semicircular plate 507. The top of the connecting ring 508 is connected to the bottom of the sliding semicircular plate 506. The connecting plate 510 is fixedly connected to the front of the fixed semicircular plate 507. The ring 511 is fixedly connected to the top of the connecting plate 510. An internal threaded groove is formed in the inner part of the ring 511. The fixing screw 512 is threadedly connected to the inner part of the ring 511. An internal threaded hole with the same diameter as the internal threaded groove is formed in the inner part of the sliding semicircular plate 506. The fixing screw 512 is threadedly connected to the inner part of the sliding semicircular plate 506. A threaded section is formed in the surface bottom of the rotating rod 509. An internal threaded groove is formed in the inner circle of the connecting ring 508. The connecting ring 508 is threadedly connected to the surface bottom of the rotating rod 509. A connecting bearing is fixedly connected to the top of the fixed semicircular plate 507. The rotating rod 509 is fixedly connected to the inner circle of the connecting bearing. The connecting bearing allows the rotating rod 509 to make the sliding semicircular plate 506 on the surface slide on the bottom of the fixed semicircular plate 507. The sliding semicircular plate 506 slides to the front to form a complete circular plate, which, together with the connecting ring plate 503, forms a processing cavity to help fermentation. The top area of the sliding semicircular plate 506 is equal to that of the fixed semicircular plate 507. The diameter of the sliding semicircular plate 506 is adapted to the inner diameter of the fermentation tank 1.

[0026] The surface temperature control assembly 3 comprises a connecting frame 301, a cooling liquid storage tank 302, a liquid pumping pump 303, a conveying pipe 304, a cooling circulation pipe 305, an inner liquid storage cylinder 306, a connecting column 307 and a metal heat sink 308. The connecting frame 301 is fixedly connected to the middle part of the surface of the fermentation tank 1. The cooling liquid storage tank 302 is fixedly connected to the front surface of the connecting frame 301. The liquid pumping pump 303 is fixedly connected to the top of the cooling liquid storage tank 302. The conveying pipe 304 is fixedly connected to the top of the liquid pumping pump 303. The cooling circulation pipe 305 is connected to the surface of the fermentation tank 1. The bottom end of the cooling circulation pipe 305 is connected to the top of the connecting frame 301. The inner liquid storage cylinder 306 is connected to the inner ring of the cooling circulation pipe 305. The inner liquid storage cylinder 306 is connected to the surface of the fermentation tank 1. The connecting column 307 is fixedly connected to the top of the inner liquid storage cylinder 306. The metal heat sink 308 is fixedly connected to the top of the connecting column 307. The metal heat sink 308 is connected to the surface of the fermentation tank 1. The inner ring of the cooling circulation pipe 305 is provided with a groove. The diameter of the groove is matched with the diameter of the inner liquid storage cylinder 306. The groove is arranged for placing the inner liquid storage cylinder 306, so that the inner liquid storage cylinder 306 is attached to the surface of the fermentation tank 1. The inner liquid storage cylinder 306 is internally provided with paraffin. When heat is generated during fermentation and the temperature rises, the phase change material absorbs heat to change phase, thereby preventing the temperature from rising sharply. When the temperature decreases, the phase change material releases heat to change phase reversely, thereby maintaining the temperature stable. The temperature of the surface can be controlled. The end of the conveying pipe 304, which is away from the top of the liquid pumping pump 303, is fixedly connected to the front surface of the cooling circulation pipe 305.

[0027] In use, the connecting ring plate 503 and the top of the sliding semicircular plate 506 and the fixed semicircular plate 507 can form a cultivation ring seat, before use, the sliding semicircular plate 506 needs to be turned over, and the sliding semicircular plate 506 is turned clockwise by one hundred and eighty degrees along the rotating rod 509, and can be turned over to the position facing forward, at this time, the threaded connection hole in the sliding semicircular plate 506 is aligned with the annular part 511, the fixed threaded part 512 is not screwed into the inside of the annular part 511 initially, the fixed threaded part 512 can be screwed into the inside of the annular part 511 after the sliding semicircular plate 506 is turned over by one hundred and eighty degrees, and then continue to screw down until the fixed threaded part 512 can be screwed into the sliding semicircular plate 506, fixed, form a cultivation chamber, inside provided with Venturi tube 501 and aerator 502, the fermentation tank bottom is installed porous aerator or Venturi tube, connects the external gas pipeline, the pipeline is provided with a manual gas valve, controls the internal gas pressure, the gas forms small bubbles when passing through the Venturi tube 501 and the aerator 502, uniformly dispersed in the fermentation broth, increases the gas-liquid contact area, improves the dissolved oxygen content, so that the laboratory strain fermentation device can adjust the gas valve to control the air intake and air intake time interval according to the oxygen demand characteristics and fermentation stage of the strain, the gas supply amount of all stages is inconsistent, and the gas supply is adapted, the effect is good in use, the surface of the fermentation tank 1 is provided with a surface temperature control assembly 3, the cooling liquid in the cooling liquid storage tank 302 can be pumped out by starting the liquid pump 303, and the cooling liquid is delivered to the inside of the cooling circulation pipe 305 through the conveying pipe 304 for circulation, so that cold air flows through the cooling circulation pipe 305 and takes away heat, realizes cooling, and the surface is provided with an internal liquid storage cylinder 306, the phase change material paraffin with a suitable phase change temperature is selected in the inside, the paraffin is packaged in the inside of the internal liquid storage cylinder 306, when heat is generated during fermentation and the temperature rises, the phase change material absorbs heat and changes phase, thereby preventing the temperature from rising sharply; when the temperature decreases, the phase change material releases heat and changes inversely, maintains the temperature stable, can control the surface temperature, convenient to use.

[0028] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A laboratory strain fermentation apparatus comprising a fermentation tank (1), characterized in that: The surface of the fermentation tank (1) is provided with a support foot (2), the surface of the fermentation tank (1) is provided with a surface temperature control assembly (3), the top of the fermentation tank (1) is provided with a feeding part (4), and the inside of the fermentation tank (1) is provided with an internal gas-liquid mixing assembly (5); The internal gas-liquid mixing assembly (5) comprises a Venturi tube (501), an aeration head (502), a connecting ring plate (503), a connecting arc plate (504), a side end connecting plate (505), a sliding semicircle plate (506), a fixed semicircle plate (507), a connecting ring (508), a rotating rod (509), a connecting plate (510), a ring (511), and a fixed screw (512), the Venturi tube (501) is connected to the inside bottom end of the fermentation tank (1), the aeration head (502) is fixedly connected to the top of the Venturi tube (501), the side end connecting plate (505) is fixedly connected to the left side of the inside of the fermentation tank (1), the connecting arc plate (504) is fixedly connected to the right side of the side end connecting plate (505), the connecting ring plate (503) is fixedly connected to the surface of the connecting arc plate (504), the fixed semicircle plate (507) is fixedly connected to the inside of the fermentation tank (1) close to the back, the sliding semicircle plate (506) is slidingly connected to the bottom of the fixed semicircle plate (507), the top of the connecting ring (508) is connected to the bottom of the sliding semicircle plate (506), the connecting plate (510) is fixedly connected to the front of the fixed semicircle plate (507), the ring (511) is fixedly connected to the top of the connecting plate (510), the inside of the ring (511) is provided with an internal threaded groove hole, the fixed screw (512) is threadedly connected to the inside of the ring (511), the inside of the sliding semicircle plate (506) is provided with a connecting threaded hole with a hole diameter equal to that of the internal threaded groove hole, and the fixed screw (512) is threadedly connected to the inside of the sliding semicircle plate (506).

2. The laboratory strain fermentation device according to claim 1, characterized in that: The surface temperature control assembly (3) comprises a connecting frame (301), a cooling liquid storage tank (302), a liquid pumping pump (303), a conveying pipe (304), a cooling circulation pipe (305), an inner liquid storage cylinder (306), a connecting column piece (307) and a metal cooling fin (308), the connecting frame (301) is fixedly connected to the surface middle part of the fermentation tank (1), the cooling liquid storage tank (302) is fixedly connected to the front face of the connecting frame (301), the liquid pumping pump (303) is fixedly connected to the top of the cooling liquid storage tank (302), the conveying pipe (304) is fixedly connected to the top of the liquid pumping pump (303), the cooling circulation pipe (305) is connected to the surface of the fermentation tank (1), the bottom end of the cooling circulation pipe (305) is connected to the top of the connecting frame (301), the inner liquid storage cylinder (306) is connected to the inner ring of the cooling circulation pipe (305), the inner liquid storage cylinder (306) is connected to the surface of the fermentation tank (1), the connecting column piece (307) is fixedly connected to the top of the inner liquid storage cylinder (306), the metal cooling fin (308) is fixedly connected to the top of the connecting column piece (307), and the metal cooling fin (308) is connected to the surface of the fermentation tank (1).

3. The laboratory strain fermentation device according to claim 2, characterized in that: The inner ring of the cooling circulation pipe (305) is provided with a groove, and the diameter of the groove is matched with the diameter of the inner liquid storage cylinder (306).

4. The laboratory strain fermentation device according to claim 2, characterized in that: The conveying pipe (304) is fixedly connected to the front face of the cooling circulation pipe (305) at the end away from the top of the liquid pumping pump (303).

5. The laboratory strain fermentation device according to claim 1, characterized in that: The top of the fixed semicircular plate (507) is fixedly connected with a connecting bearing piece, and the rotating rod piece (509) is fixedly connected to the inner ring of the connecting bearing piece.

6. The laboratory strain fermentation device according to claim 1, characterized in that: The surface bottom of the rotating rod piece (509) is provided with a threaded section, the inner ring of the connecting ring piece (508) is provided with an internal thread groove, and the connecting ring piece (508) is threadedly connected to the surface bottom of the rotating rod piece (509).

7. The laboratory strain fermentation device according to claim 1, characterized in that: The top area of the sliding semicircular plate (506) is equal to that of the fixed semicircular plate (507), and the diameter of the sliding semicircular plate (506) is matched with the inner diameter of the fermentation tank (1).

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