Anaerobic culture gas conversion device

Abstract

The utility model discloses an anaerobic culture gas conversion device which comprises a nitrogen cylinder (1) and a mixed gas cylinder (2), the nitrogen cylinder (1) and the mixed gas cylinder (2) are respectively in butt joint with a three-way joint (3) through pipelines, the end part of the three-way joint is in butt joint with a steel tank (4) through a first pipeline (101), a first switch valve (201) is arranged on the first pipeline (101), and a second switch valve (201) is arranged on the second pipeline (101). The bottom of the steel tank (4) is in butt joint with an anaerobic tank (5) through a second pipe (102), a one-way valve (6) only allowing gas to flow in one direction is installed on the second pipe (102), an air extractor (7) is arranged at the end, opposite to the first pipeline (101), of the steel tank (4), and the air extractor (7) is in butt joint with a third pipe (103) through an air extraction opening (9). According to the utility model, redundant gas can be released in time to relieve overlarge pressure intensity, the gas tank and the gas delivery pipe are connected and clamped more tightly, and the sealing performance is stronger.

Description

Technical Field

[0001] The utility model relates to the field of gas conversion devices, in particular to an anaerobic culture gas conversion device. Background Art

[0002] The cultivation of biological bacteria and fungi requires a specific anaerobic environment. It is very important to prepare a gas with a specific concentration to maintain the anaerobic environment.

[0003] According to different experimental requirements, it is necessary to adjust different gas ratios, such as increasing or decreasing the content of oxygen, nitrogen, carbon dioxide, hydrogen, etc., or adding other gases to meet the requirements of a specific anaerobic environment. The traditional anaerobic culture gas device only provides different gas transmission pipes for the transmission of various gases, without considering the consequences caused by excessive gas pressure. At the same time, it also does not pay attention to the problem that the connection between the gas cylinder and the gas transmission pipe is not tight, resulting in excessive gas entering the gas cylinder and flushing out, as well as poor sealing between the gas cylinder and the gas transmission pipe.

[0004] In view of this, an anaerobic culture gas conversion device is proposed, which can timely release excess gas to relieve excessive pressure, and the connection between the gas cylinder and the gas transmission pipe is more tightly clamped and has stronger sealing performance. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an anaerobic culture gas conversion device, which can timely release excess gas to relieve excessive pressure, and the connection between the gas cylinder and the gas transmission pipe is more tightly clamped and has stronger sealing performance.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions:

[0007] An anaerobic culture gas conversion device includes a nitrogen cylinder 1 and a mixed gas cylinder 2. The nitrogen cylinder 1 and the mixed gas cylinder 2 are respectively docked with a three-way joint 3 through pipelines. The end of the three-way is docked with a steel cylinder 4 through a first pipeline 101. A first switch valve 201 is installed on the first pipeline 101. The bottom of the steel cylinder 4 is docked with an anaerobic tank 5 through a second pipe 102. A one-way valve 6 that only allows gas to flow in one direction is installed on the second pipe 102. A gas extraction device 7 is provided at the end of the steel cylinder 4 opposite to the first pipeline 101. The gas extraction device 7 is docked with a third pipe 103 through a gas extraction port 9. The end of the third pipe 103 is docked with the steel cylinder 4. A second switch valve 202 is installed on the third pipe 103.

[0008] A clamping device 12 is connected to the lower end of the second pipe 102. The cross-section of the clamping device 1 is diamond-shaped, and the clamping device 12 is an elastic member.

[0009] A rubber block 13 sleeved on the second pipe 102 is provided between the second pipe 102 and the anaerobic tank 5.

[0010] A pressure gauge 14 communicating with the inside of the steel tank 4 is installed on the steel tank 4, and the pressure gauge 14 is docked with an alarm.

[0011] The air extraction device 7 is an anaerobic collection box, and a perspective window 10 and a switch button 11 are provided on the anaerobic collection box.

[0012] Beneficial effects of adopting the present utility model:

[0013] 1. The nitrogen cylinder and the mixed gas cylinder are respectively arranged at two interfaces of the three-way joint. A steel tank for receiving nitrogen and mixed gas is further included. The steel tank is connected to the third interface of the three-way joint. The steel tank has high hardness and is not easy to explode. The gases are first mixed in the steel tank. At least one pressure gauge is further provided at one end of the steel tank to monitor the air pressure inside the steel tank in real time, prevent the steel tank from exploding, and the steel tank is connected to the third interface of the three-way joint through a first pipe. A first switch valve is arranged in the middle of the first pipe. When it is necessary to supplement nitrogen or the concentration of the mixed gas, the first switch valve is opened to facilitate the gas inside the nitrogen cylinder or the mixed gas cylinder to enter the steel tank.

[0014] 2. An anaerobic tank for receiving anaerobic gas is provided at the other end of the steel tank. The anaerobic tank is connected to the steel tank through a second pipe, and a one-way valve that only allows gas to flow in one direction is connected in the middle of the second pipe. The one-way valve can prevent the anaerobic gas entering the anaerobic tank from escaping. An air extraction device is provided at the other end of the steel tank.

[0015] The air extraction device is an anaerobic collection box. A third pipe is provided between the anaerobic collection box and the steel tank. A second switch valve is connected in the middle of the third pipe. The anaerobic collection box is provided with an air extraction port. The third pipe and the anaerobic collection box extract the gas inside the steel tank through the air extraction port. When the pressure gauge detects that the air pressure inside the steel tank exceeds the safety value, an alarm sound is emitted, the second switch valve and the anaerobic collection box are opened, and the gas is extracted through the air extraction port to reduce the air pressure inside the steel tank.

[0016] 3. A clamping device is connected to the lower end of the second pipe. The clamping device is diamond-shaped and is an elastic member. When the second pipe extends into the anaerobic tank, the clamping device is squeezed into the tank mouth of the anaerobic tank due to its own elasticity. After the second pipe extends into the anaerobic tank, because the clamping device is diamond-shaped, the diamond convex corners can be stuck at the tank mouth of the anaerobic tank to prevent the second pipe from falling out.

[0017] A rubber block is provided between the second pipe and the anaerobic tank to improve the connection tightness between the second pipe and the anaerobic tank and reduce the loosening of the connection between the two due to vibration. Description of the drawings

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 Overall schematic diagram of the gas conversion device in the first embodiment of the present invention;

[0020] Figure 2 For Figure 1 Cross-sectional view of the anaerobic tank and the second pipe in Detailed implementation manners

[0021] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Embodiment

[0022] An anaerobic culture gas conversion device, as Figure 1 shown, includes a nitrogen gas cylinder 1 and a mixed gas cylinder 2. The nitrogen gas cylinder 1 and the mixed gas cylinder 2 are respectively connected to a three-way joint 3 through pipelines. The end of the three-way is connected to a steel tank 4 through a first pipeline 101. A first switch valve 201 is installed on the first pipeline 101. The bottom of the steel tank 4 is connected to an anaerobic tank 5 through a second pipe 102. A one-way valve 6 that only allows gas to flow in one direction is installed on the second pipe 102. An air extraction device 7 is provided at the end of the steel tank 4 opposite to the first pipeline 101. The air extraction device 7 is connected to a third pipe 103 through an air extraction port 9. The end of the third pipe 103 is connected to the steel tank 4. A second switch valve 202 is installed on the third pipe 103.

[0023] A clamping device 12 is connected to the lower end of the second pipe 102. The cross-section of the clamping device 12 is diamond-shaped, and the clamping device 12 is an elastic member. When the second pipe 102 extends into the anaerobic tank 5, the clamping device 12 is squeezed into the mouth of the anaerobic tank 5 due to its own elasticity. After the second pipe 102 extends into the anaerobic tank 5, because the shape of the clamping device 12 is diamond-shaped, the diamond-shaped convex corners can be stuck at the mouth of the anaerobic tank 5 to prevent the second pipe 102 from falling out.

[0024] A rubber block 13 sleeved on the second pipe 102 is provided between the second pipe 102 and the anaerobic tank 5 to improve the connection sealing performance between the second pipe 102 and the anaerobic tank 5 and reduce the loosening of the connection between the two due to vibration.

[0025] A pressure gauge 14 communicating with the inside is installed on the steel tank 4, and the pressure gauge 14 is docked with an alarm. When the pressure gauge 14 detects that the internal air pressure of the steel tank 4 exceeds the safety value, the alarm is activated to emit an alarm sound.

[0026] The described air extraction device 7 is an anaerobic collection box, on which a perspective window 10 and a switch button 11 are provided. The perspective window 10 is used to monitor the air extraction condition, and the switch button 11 is used to start or close the anaerobic collection box. Embodiment

[0027] Dock the nitrogen cylinder 1 filled with nitrogen, the mixed gas cylinder 2 filled with a mixed gas, and the three-way joint 3 in Example 1. 95% pure nitrogen + 5% carbon dioxide, which is a common gas preparation method for culturing bacteria and fungi and is suitable for general anaerobic conditions; 90% pure nitrogen + 5% carbon dioxide + 5% hydrogen: This is a gas preparation method for culturing bacteria under more stringent anaerobic conditions and is suitable for more demanding anaerobic conditions. Therefore, the mixed gas cylinder 2 can be mixed with either carbon dioxide or hydrogen. According to different experimental requirements, the gas ratio can also be adjusted as needed, such as increasing or decreasing the oxygen content, or adding other gases to meet the requirements of a specific anaerobic environment.

[0028] The nitrogen cylinder 1 and the mixed gas cylinder 2 are respectively arranged at two interfaces of the three-way joint 3, and further include a steel tank 4 for receiving nitrogen and the mixed gas. The steel tank 4 is connected to the third interface of the three-way joint 3. The steel tank 4 has high hardness and is not easily exploded. The gases are first mixed in the steel tank 4, and at least one pressure gauge 14 is also provided at one end of the steel tank 4 to monitor the internal air pressure of the steel tank 4 in real time to prevent the steel tank 4 from exploding. The steel tank 4 is connected to the third interface of the three-way joint 3 through a first pipe 101, and a first switch valve 201 is provided in the middle of the first pipe 101. When it is necessary to supplement the nitrogen or the concentration of the mixed gas, the first switch valve 201 is opened to facilitate the gas inside the nitrogen cylinder 1 or the mixed gas cylinder 2 to enter the steel tank 4.

[0029] It is worth mentioning that the first switch valve 201 can also be arranged between the nitrogen cylinder 1 and one of the interfaces of the three-way joint, or between the mixed gas cylinder 2 and one of the interfaces of the three-way joint.

[0030] An anaerobic tank 5 for receiving anaerobic gas is provided at the other end of the steel tank 4. The anaerobic tank 5 is connected to the steel tank 4 through a second pipe 102, and a one-way valve 6 that only allows gas to flow in one direction is connected in the middle of the second pipe 102. The one-way valve 6 can prevent the anaerobic gas entering the anaerobic tank 5 from escaping. A gas extraction device 7 is provided at the other end of the steel tank 4.

[0031] The air extraction device 7 is an anaerobic collection tank. A third pipe 103 is provided between the anaerobic collection tank and the steel tank 4. A second switch valve 202 is connected in the middle of the third pipe 103. The anaerobic collection tank is provided with an air extraction port 9. The third pipe 103 and the anaerobic collection tank extract the gas in the steel tank 4 through the air extraction port 9. When the pressure gauge 14 detects that the internal air pressure of the steel tank 4 exceeds the safety value, an alarm sound is emitted, the second switch valve 202 and the anaerobic collection tank are opened, and the gas is extracted through the air extraction port 9 to reduce the internal air pressure of the steel tank 4.

[0032] The anaerobic culture gas conversion device is also provided with an alarm connected to the pressure gauge 14. When the pressure gauge 14 detects that the internal air pressure of the steel tank 4 exceeds the safety value, the alarm is activated to emit an alarm sound.

[0033] Of course, a vacuum pump can be provided inside the anaerobic collection tank, and the vacuum pump is connected to the air extraction port 9 to provide suction for extracting gas.

[0034] The anaerobic collection tank is provided with a viewing window 10 and a switch button 11. The viewing window 10 is used to monitor the air extraction condition, and the switch button 11 is used to start or close the anaerobic collection tank.

[0035] As Figure 2 shown, the lower end of the second pipe 102 is connected with a clamping device 12. The clamping device 12 is diamond-shaped and is an elastic member. When the second pipe 102 extends into the anaerobic tank 5, the clamping device 12 is squeezed into the mouth of the anaerobic tank 5 due to its own elasticity. After the second pipe 102 extends into the anaerobic tank 5, because the clamping device 12 is diamond-shaped, the diamond convex angles can be stuck at the mouth of the anaerobic tank 5 to prevent the second pipe 102 from falling out.

[0036] A rubber block 13 is provided between the second pipe 102 and the anaerobic tank 5 to improve the connection tightness between the second pipe 102 and the anaerobic tank 5 and reduce the loosening of the connection between the two due to vibration.

[0037] The anaerobic collection tank is also provided with an air inlet, and oxygen can be filled through the air inlet.

[0038] At least one pressure gauge 14 is provided at one end of the steel tank 4, and the pressure gauge 14 is used to monitor the gas pressure inside the steel tank 4. Embodiment

[0039] Operating process of the anaerobic culture gas conversion device:

[0040] S1: Turn on the switch button 11 of the anaerobic collection tank to start the anaerobic collection tank, close the first switch valve 201, open the second switch valve 202. When the value of the pressure gauge 14 is 0, close the anaerobic collection tank to stop extracting air, and close the second switch valve 202. The main purpose is to extract the air inside the device to ensure that the inside of the device is vacuum.

[0041] S2: Open the mixed gas cylinder 2 and open the first switch valve 201. When the value on the pressure gauge 14 reaches a certain value, close the first switch valve 201 and keep it for 3 - 5 seconds to allow the gas to fully enter the anaerobic tank 5. Then repeat S1 and S2 in a cycle until all the required gases such as carbon dioxide and hydrogen are filled into the anaerobic tank 5.

[0042] S3: First repeat S1, then open the hydrogen gas cylinder and open the first switch valve 201. When the value on the pressure gauge 14 reaches a certain value, close the hydrogen gas cylinder, close the first switch valve 201, and turn off the total power supply of the device. Embodiment

[0043] Another way is that an air extractor can also be provided inside the anaerobic collection box, and the air extractor is connected to the air extraction port 9 to provide suction for extracting gas. Embodiment

[0044] Another way is that the air extraction device 7 is a vacuum pump. There is a third pipe 103 between the vacuum pump and the steel tank 4. A second switch valve 202 is connected in the middle of the third pipe 103. When the pressure gauge 14 detects that the internal air pressure of the steel tank 4 exceeds the safety value, an alarm sound is emitted. Open the second switch valve 202 and the vacuum pump, and extract the gas through the vacuum pump to reduce the internal air pressure of the steel tank 4.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An anaerobic culture gas conversion device, characterized in that The invention comprises a nitrogen cylinder (1) and a mixed gas cylinder (2), wherein the nitrogen cylinder (1) and the mixed gas cylinder (2) are respectively connected to a three-way joint (3) through a pipeline, and the end of the three-way joint is connected to a steel tank (4) through a first pipeline (101), and a first switch valve (201) is installed on the first pipeline (101). The bottom of the steel tank (4) is connected to an anaerobic tank (5) through a second pipe (102), and a one-way valve (6) for gas flow in one direction is installed on the second pipe (102). An exhaust device (7) is provided at the end of the steel tank (4) opposite to the first pipe (101), and the exhaust device (7) is connected to a third pipe (103) through an exhaust port (9), and the end of the third pipe (103) is connected to the steel tank (4), and a second switch valve (202) is installed on the third pipe (103).

2. The anaerobic culture gas conversion device according to claim 1, characterized in that The lower end of the second tube (102) is connected with a clamping device (12), the cross section of the clamping device (12) is a rhombus, and the clamping device (12) is an elastic member.

3. The anaerobic culture gas conversion device according to claim 1, characterized in that A rubber block (13) sleeved on the second tube (102) is provided between the second tube (102) and the anaerobic tank (5).

4. The anaerobic culture gas conversion device according to claim 1, characterized in that The steel tank (4) is provided with a pressure gauge (14) which is in communication with the interior thereof, and the pressure gauge (14) is connected to the alarm.

5. The anaerobic culture gas conversion device according to claim 1, characterized in that The air extraction device (7) is an anaerobic collection box, which is provided with a perspective window (10) and a switch button (11).

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