Escherichia coli fermentation tail gas bottle gas-liquid separation device

Abstract

This utility model relates to the field of gas-liquid separation technology and discloses a gas-liquid separation device for E. coli fermentation tail gas bottles. The device includes a separation tank, an inlet pipe connected to the left side of the outer wall of the separation tank, a fixing ring fixedly connected to the top inner side of the separation tank, two filter screens slidably connected to the top inner side of the separation tank, multiple springs fixedly connected between adjacent filter screens, and filter cotton fixedly connected between adjacent filter screens. A pull rod is slidably connected to the top of the separation tank, and a piston is fixedly connected to the bottom of the pull rod. A cleaning mechanism is provided on the left side of the separation tank. In this utility model, impurities are filtered by the filter screens, tiny liquid droplets in the tail gas are adsorbed by the filter cotton, and the piston squeezes the filter cotton to discharge the liquid, achieving efficient separation of liquid and gas, effectively filtering impurities and tiny liquid droplets, and improving the tail gas treatment efficiency.

Description

Technical Field

[0001] This utility model relates to the field of gas-liquid separation technology, and in particular to a gas-liquid separation device for Escherichia coli fermentation tail gas bottles. Background Technology

[0002] During the fermentation of E. coli, microorganisms produce a mixture of exhaust gas containing carbon dioxide, water vapor, and a small amount of volatile organic compounds through metabolic activities. Direct emission of this exhaust gas not only wastes resources but also poses a risk of environmental pollution or cross-contamination due to the presence of fermentation droplets in the form of aerosols. Therefore, efficient treatment of the gas-liquid mixture in the fermentation exhaust gas has become a key link in ensuring production safety and environmental protection. The gas-liquid separation device for E. coli fermentation exhaust gas bottles is the core equipment to meet this need.

[0003] The E. coli fermentation tail gas separation device is a specialized piece of equipment that achieves efficient separation of gas and liquid in the tail gas based on the differences in physical properties between the gas and liquid phases through a specific structural design. The device separates the gas and liquid phases using centrifugal force, inertial impaction, or filtration principles. This not only reduces the waste of raw materials caused by the loss of fermentation broth with the tail gas but also prevents air pollution from microbial cells or metabolic products carried by liquid droplets, ensuring the continuous and stable operation of the fermentation process.

[0004] During high-density E. coli fermentation, a large amount of exhaust gas is generated. If the gas-liquid separation device cannot handle it in time, it will lead to an increase in pressure inside the fermenter, affecting the stability of the fermentation process. Existing technologies improve gas-liquid separation efficiency by adding guide vanes and changing the shape and position of the air inlet and outlet to create a more stable and efficient rotating flow field in the separator. However, when the filter cotton filters fine liquid droplets for a long time, the pores of the filter cotton will be blocked by the liquid droplets, resulting in a rapid increase in air resistance and affecting the separation efficiency. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a gas-liquid separation device for Escherichia coli fermentation tail gas bottles, which aims to improve the problem that the pores of the filter cotton are blocked by liquid droplets in the prior art, affecting the separation efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a gas-liquid separation device for Escherichia coli fermentation tail gas bottles, comprising a separation tank, an air inlet pipe connected to the left side of the outer wall of the separation tank, a fixing ring fixedly connected to the top inner side of the separation tank, two filter screens slidably connected to the top inner side of the separation tank, multiple springs fixedly connected between adjacent filter screens, filter cotton fixedly connected between adjacent filter screens, a pull rod slidably connected to the top of the separation tank, a piston fixedly connected to the bottom of the pull rod, and a cleaning mechanism provided on the left side of the separation tank for cleaning the inner wall of the air inlet pipe.

[0007] As a further description of the above technical solution:

[0008] The cleaning mechanism includes a water tank, the bottom of which is fixedly connected to the top left side of the mounting plate. A water pump is fixedly connected to the top of the water tank. A water supply pipe is connected to the front of the water pump, and a rotating nozzle is connected to the other end of the water supply pipe. A motor is fixedly connected to the bottom of the separation tank, and a scraper is fixedly connected to the output end of the motor.

[0009] As a further description of the above technical solution:

[0010] A collection hood is fixedly connected to the top of the separation tank, and a gas collecting bottle is fixedly connected to the top of the collection hood.

[0011] As a further description of the above technical solution:

[0012] The bottom right side of the outer wall of the separator is connected to a drain pipe, and a valve is rotatably connected inside the drain pipe.

[0013] As a further description of the above technical solution:

[0014] The right end of the drain pipe is connected to a collection box, and a sealing cover is slidably connected to the top of the collection box.

[0015] As a further description of the above technical solution:

[0016] A centrifugal fan is fixedly connected to the top inner side of the air intake pipe, and multiple baffles are fixedly connected to the bottom inner side of the air intake pipe.

[0017] As a further description of the above technical solution:

[0018] The outer wall of the separator is fixedly connected to an installation plate, and support legs are fixedly connected to the four corners at the bottom of the installation plate.

[0019] As a further description of the above technical solution:

[0020] A reflector is fixedly connected to the rear side of the inside of the separation tank, and an ultraviolet lamp is fixedly connected to the bottom of the reflector.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, impurities are filtered by a filter screen, and tiny liquid droplets are adsorbed by filter cotton. Pulling the lever drives the piston to squeeze the filter cotton and discharge the liquid, thereby achieving efficient separation of liquid and gas in the exhaust gas, effectively filtering impurities and tiny liquid droplets, improving the separation effect, ensuring continuous and stable operation of the device, and improving the treatment efficiency of exhaust gas.

[0023] 2. In this utility model, the high pressure generated by the water pump causes water to spray out from the rotating nozzle and drive it to rotate, which washes the inner wall of the air inlet pipe in all directions. The motor drives the scraper to rotate and scrape off impurities, thus achieving the cleaning of the inner wall of the air inlet pipe and the effective removal of impurities at the bottom of the separation tank. This avoids the accumulation of impurities from affecting the operation of the device, keeps the air inlet pipe unobstructed and the separation tank clean, extends the service life of the equipment, and reduces the maintenance frequency. Attached Figure Description

[0024] Figure 1 This is a perspective view of a gas-liquid separation device for Escherichia coli fermentation tail gas bottles proposed in this utility model;

[0025] Figure 2 This is a front view of a gas-liquid separation device for Escherichia coli fermentation tail gas bottles proposed in this utility model;

[0026] Figure 3 This is a cross-sectional view of a gas-liquid separation device for Escherichia coli fermentation tail gas bottles proposed in this utility model;

[0027] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0028] Figure 5 This is a schematic diagram of the rotating nozzle of a gas-liquid separation device for Escherichia coli fermentation tail gas bottle proposed in this utility model.

[0029] Legend:

[0030] 1. Separation tank; 2. Cleaning mechanism; 201. Water tank; 202. Water pump; 203. Water supply pipe; 204. Rotary nozzle; 205. Motor; 206. Scraper; 3. Mounting plate; 4. Support leg; 5. Air inlet pipe; 6. Centrifugal fan; 7. Baffle plate; 8. Fixing ring; 9. Filter screen; 10. Spring; 11. Filter cotton; 12. Pull rod; 13. Piston; 14. Collection hood; 15. Gas collection bottle; 16. Drain pipe; 17. Valve; 18. Collection box; 19. Sealing cover; 20. Reflector; 21. Ultraviolet lamp. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0032] Reference Figure 1 , Figure 3 and Figure 4This utility model provides an embodiment of a gas-liquid separation device for E. coli fermentation tail gas bottles, including a separation tank 1. The separation tank 1 provides space for gas-liquid separation. An air inlet pipe 5 is connected to the left side of the outer wall of the separation tank 1, introducing the tail gas to be separated. A fixing ring 8 is fixedly connected to the top inner side of the separation tank 1, and the fixing ring 8 is used to install filter screens 9. Two filter screens 9 are slidably connected to the top inner side of the separation tank 1. The filter screens 9 filter impurities in the tail gas. Multiple springs 10 are fixedly connected between adjacent filter screens 9, and the springs 10 are pressed by filter cotton 11. The filter 11 is fixedly connected between the two adjacent filter screens 9. The filter cotton 11 further adsorbs the tiny liquid droplets in the exhaust gas, improving the separation effect. The top of the separation tank 1 is slidably connected to the pull rod 12, which allows the operator to drive the piston 13 to move. The bottom of the pull rod 12 is fixedly connected to the piston 13. By pulling the pull rod 12, the piston 13 is driven to squeeze the filter cotton 11 and remove the liquid adsorbed by the filter cotton 11. A cleaning mechanism 2 is set on the left side of the separation tank 1, which can clean the inner wall of the air inlet pipe 5 to prevent impurities from accumulating and affecting the effect of the air inlet pipe 5.

[0033] Specifically, the exhaust gas to be separated enters the separator tank 1 through the intake pipe 5 for preliminary separation. After preliminary separation, the exhaust gas enters the separator tank 1, the liquid falls and the gas rises. The filter screen 9 filters the impurities in the exhaust gas, and the filter cotton 11 adsorbs the tiny liquid droplets in the exhaust gas to further improve the separation effect. Pulling the lever 12 at the top of the separator tank 1 drives the piston 13 to squeeze the filter cotton 11, remove the adsorbed liquid, and improve the adsorption effect of the filter cotton 11. After squeezing, the spring 10 rebounds, causing the filter cotton 11 to return to its original position.

[0034] Reference Figure 2 , Figure 3 and Figure 5 The cleaning mechanism 2 includes a water tank 201, which is used to store cleaning water. The bottom of the water tank 201 is fixedly connected to the top left side of the mounting plate 3 for easy cleaning of the air inlet pipe 5. A water pump 202 is fixedly connected to the top of the water tank 201. The water pump 202 is used to extract water. A water supply pipe 203 is connected to the front of the water pump 202. The water supply pipe 203 delivers the water extracted by the water pump 202 to the nozzle. The other end of the water supply pipe 203 is connected to a rotating nozzle 204. The rotating nozzle 204 can be rotated using the high pressure generated by the water pump 202 to clean the inner wall of the air inlet pipe 5. A motor 205 is fixedly connected to the bottom of the separation tank 1. The motor 205 is used to drive the scraper 206 to rotate. The output end of the motor 205 is fixedly connected to the scraper 206. The scraper 206 can scrape off the impurities washed down.

[0035] Specifically, the cleaning water stored in the water tank 201 is pumped out by the water pump 202. The water pumped by the water pump 202 is transported to the rotary nozzle 204 through the water pipe 203. Due to the high pressure generated by the water pump 202, the rotary nozzle 204 rotates while spraying water, rinsing the inner wall of the air inlet pipe 5 and washing off the impurities attached to the inner wall. The motor 205 at the bottom of the separator 1 drives the scraper 206 to rotate, scraping off these impurities, preventing the accumulation of impurities from affecting the normal operation of the device and ensuring the cleanliness of the air inlet pipe 5.

[0036] Reference Figure 1 and Figure 3 A collection hood 14 is fixedly connected to the top of the separator 1. The collection hood 14 gathers the separated gas together. A gas collecting bottle 15 is fixedly connected to the top of the collection hood 14. The gas collecting bottle 15 collects the gathered gas in a unified manner. A drain pipe 16 is connected to the bottom right side of the outer wall of the separator 1. The drain pipe 16 discharges the separated liquid. A valve 17 is rotatably connected inside the drain pipe 16. The valve 17 can control the flow of liquid. A collection box 18 is connected to the right end of the drain pipe 16. The collection box 18 can collect and utilize the discharged liquid in a unified manner. A sealing cover 19 is slidably connected to the top of the collection box 18. The sealing cover 19 allows users to easily access the liquid in the box at any time.

[0037] Specifically, the collection hood 14 gathers the separated gases together and then collects them uniformly by the gas collecting bottle 15. When the valve 17 is opened, the separated liquid is discharged through the drain pipe 16. The right end of the drain pipe 16 is connected to the collection box 18, which collects the discharged liquid uniformly for convenient centralized processing. When the sealing cover 19 is opened, the user can take the liquid in the box at any time, which improves the convenience of taking it.

[0038] Reference Figure 1 , Figure 3 and Figure 4 A mounting plate 3 is fixedly connected to the outer wall of the separation tank 1. The mounting plate 3 is responsible for installing the separation tank 1. Support legs 4 are fixedly connected to the four corners at the bottom of the mounting plate 3. The support legs 4 support the entire separation device and maintain stable operation. A centrifugal fan 6 is fixedly connected to the top of the inner side of the air inlet pipe 5. The centrifugal fan 6 accelerates the flow of exhaust gas and improves the gas-liquid separation efficiency. Multiple baffles 7 are fixedly connected to the bottom of the inner side of the air inlet pipe 5. The baffles 7 are used to change the flow direction of exhaust gas and make the liquid and gas initially separate. A reflector 20 is fixedly connected to the rear of the inside of the separation tank 1. The reflector 20 protects the ultraviolet lamp 21 from the influence of the liquid and improves the disinfection efficiency of the ultraviolet lamp 21. An ultraviolet lamp 21 is fixedly connected to the bottom of the reflector 20. The ultraviolet lamp 21 is responsible for disinfecting the liquid in the tank.

[0039] Specifically, the mounting plate 3 and the support leg 4 form a support frame to maintain the stability of the working environment. The exhaust gas to be separated enters the separation tank 1 through the air inlet pipe 5. The centrifugal fan 6 on the top of the inner side of the air inlet pipe 5 accelerates the flow of exhaust gas and improves the gas-liquid separation efficiency. At the same time, the baffle plate 7 changes the flow direction of exhaust gas, so that the liquid and gas in the exhaust gas are initially separated. The reflector 20 is fixedly installed with ultraviolet lamp 21, which protects it from the impact of falling liquid while reflecting ultraviolet light to improve sterilization efficiency. The ultraviolet lamp 21 disinfects the liquid in the tank to ensure the cleanliness of the liquid.

[0040] Working principle: First, the exhaust gas to be separated enters the separation tank 1 through the inlet pipe 5. Due to gravity, the liquid falls to the bottom of the tank, while the gas rises. Then, the filter screen 9 filters the impurities in the rising exhaust gas, and the filter cotton 11 adsorbs the tiny liquid droplets remaining in the exhaust gas, further improving the separation effect. When the filter cotton 11 adsorbs a certain amount of liquid, the adsorption effect of the filter cotton 11 will decrease. At this time, the pull rod 12 at the top of the separation tank 1 is pulled. The pull rod 12 drives the piston 13 to squeeze the filter cotton 11, removing the adsorbed liquid, thereby improving the adsorption effect of the filter cotton 11. After the squeezing is completed, the spring 10 rebounds, allowing the filter cotton 11 to return to its original position for adsorption work to be carried out again.

[0041] Furthermore, when the air intake pipe 5 needs to be cleaned, the water pump 202 generates suction to draw water from the water tank 201 through its own operation. Then, the water pipe 203 delivers the drawn water to the rotary nozzle 204. Due to the high pressure generated by the water pump 202, the high-pressure water jet generates a reaction force when it is sprayed out from the rotary nozzle 204, driving the rotary nozzle 204 to rotate, thereby rinsing the inner wall of the air intake pipe 5 in all directions. The impurities washed down fall to the bottom of the separator tank 1 with the water flow. The motor 205 drives the scraper 206 to rotate, so that the scraper 206 rotates around the center of the separator tank 1, scraping away the impurities at the bottom of the separator tank 1, and preventing the accumulation of impurities from affecting the normal operation of the device.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gas-liquid separation device for Escherichia coli fermentation tail gas bottles, comprising a separation tank (1), characterized in that: An air inlet pipe (5) is connected to the left side of the outer wall of the separator (1). A fixing ring (8) is fixedly connected to the top of the inner side of the separator (1). Two filter screens (9) are slidably connected to the top of the inner side of the separator (1). Multiple springs (10) are fixedly connected between adjacent filter screens (9). Filter cotton (11) is fixedly connected between adjacent filter screens (9). A pull rod (12) is slidably connected to the top of the separator (1). A piston (13) is fixedly connected to the bottom of the pull rod (12). A cleaning mechanism (2) is provided on the left side of the separator (1). The cleaning mechanism (2) is used to clean the inner wall of the air inlet pipe (5).

2. The gas-liquid separation device for Escherichia coli fermentation tail gas bottle according to claim 1, characterized in that: The cleaning mechanism (2) includes a water tank (201), the bottom of which is fixedly connected to the top left side of the mounting plate (3), a water pump (202) is fixedly connected to the top of the water tank (201), a water supply pipe (203) is connected to the front side of the water pump (202), and a rotating nozzle (204) is connected to the other end of the water supply pipe (203). A motor (205) is fixedly connected to the bottom of the separation tank (1), and a scraper (206) is fixedly connected to the output end of the motor (205).

3. The gas-liquid separation device for Escherichia coli fermentation tail gas bottle according to claim 1, characterized in that: The top of the separation tank (1) is fixedly connected to a collection hood (14), and the top of the collection hood (14) is fixedly connected to a gas collecting bottle (15).

4. The gas-liquid separation device for Escherichia coli fermentation tail gas bottle according to claim 1, characterized in that: The bottom right side of the outer wall of the separator (1) is connected to a drain pipe (16), and a valve (17) is rotatably connected inside the drain pipe (16).

5. The gas-liquid separation device for Escherichia coli fermentation tail gas bottle according to claim 4, characterized in that: The right end of the drain pipe (16) is connected to a collection box (18), and a sealing cover (19) is slidably connected to the top of the collection box (18).

6. The gas-liquid separation device for Escherichia coli fermentation tail gas bottle according to claim 1, characterized in that: A centrifugal fan (6) is fixedly connected to the top inner side of the air intake pipe (5), and multiple baffles (7) are fixedly connected to the bottom inner side of the air intake pipe (5).

7. The gas-liquid separation device for Escherichia coli fermentation tail gas bottle according to claim 1, characterized in that: The outer wall of the separation tank (1) is fixedly connected to an installation plate (3), and support legs (4) are fixedly connected to the four corners of the bottom of the installation plate (3).

8. The gas-liquid separation device for Escherichia coli fermentation tail gas bottle according to claim 1, characterized in that: A reflector (20) is fixedly connected to the rear side of the inside of the separation tank (1), and an ultraviolet lamp (21) is fixedly connected to the bottom of the reflector (20).

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