Efficient fermentation tank for microbial oil displacement

Abstract

The utility model discloses an efficient fermentation tank for microbial oil displacement. The efficient fermentation tank for microbial oil displacement comprises a fermentation tank body, a pneumatic circulation assembly, a spiral flow guide assembly and a self-cleaning assembly, in order to solve the problem that in the prior art, a common fermentation tank stirring system is prone to causing shear damage to thalli due to continuous mechanical stirring, ascending airflow is generated through a pneumatic circulation assembly, liquid is driven to flow through gas ascending, the stirring function is achieved, and mechanical damage is reduced; through the arrangement of the spiral flow guide assembly, when upflow is generated, the spiral flow guide assembly can automatically rotate, so that liquid is driven to be spirally guided, microorganisms can be fully mixed with a culture solution through spirals, and the mixing efficiency is further improved; and the inner wall of the tank body is automatically and rotationally scraped, so that thalli and metabolites are prevented from scaling.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil displacement microbial fermentation, in particular to a high-efficiency fermentation tank for microbial oil displacement. BACKGROUND

[0002] Microbial oil displacement is a high-technology and cost-effective enhanced oil recovery technology. It utilizes the biochemical processes of microbial growth, reproduction and metabolism in the oil layer, as well as the migration of microbial cells, microbial nutrient solution and microbial metabolites in the oil layer, and the interaction of rock, oil, gas and water, to change the physical and chemical properties of the oil reservoir, thereby improving the recovery of crude oil. In the field of microbial oil displacement technology, corresponding fermentation tanks are needed.

[0003] In the prior art patent document "CN218989230U Fermentation tank", a fermentation tank is disclosed. Although the fermentation tank in the above technical solution can culture microorganisms, when it is used for culturing shear-sensitive anaerobic / facultative anaerobic bacteria such as methanogenic archaea, the stirring system in the above technical solution will cause shear damage to the microorganisms.

[0004] That is, the prior art has the following technical problems: the ordinary fermentation tank stirring system will cause shear damage to the microorganisms. Therefore, the high-efficiency fermentation tank for microbial oil displacement is proposed to solve the above problems. SUMMARY

[0005] In this embodiment, a high-efficiency fermentation tank for microbial oil displacement is provided to solve the problem that the ordinary fermentation tank stirring system in the prior art will cause shear damage to the microorganisms.

[0006] According to one aspect of the present application, a high-efficiency fermentation tank for microbial oil displacement is provided, which comprises:

[0007] A fermentation tank body for culturing microorganisms;

[0008] A pneumatic circulation assembly comprising a jet unit and a gas supply unit, the jet unit being fixedly arranged in the inner cavity of the fermentation tank body, and the gas supply unit being fixedly arranged at the outer wall of the fermentation tank body, the gas supply unit being connected with the jet unit, and the jet unit being used to form an upward gas flow in the inner cavity of the fermentation tank body;

[0009] A spiral flow guide assembly fixedly arranged in the inner cavity of the fermentation tank body, the spiral flow guide assembly being used to automatically rotate when the upward gas flow;

[0010] A self-cleaning assembly is fixedly arranged in the inner cavity of the fermentation tank body, connected between the spiral flow guide assembly, and used for periodic scraping of the tank wall.

[0011] Further, the fermentation tank body comprises a tank body, a tank cover, a supporting foot, and a one-way air valve. The bottom of the tank body is fixedly provided with a supporting foot. The upper part of the tank body is fixedly connected with a tank cover. The tank cover is provided with a one-way air valve. The one-way air valve is used for discharging gas in the tank.

[0012] Further, the air injection unit comprises a fixed air shell, an air inlet pipe, and air injection holes. The fixed air shell is fixedly arranged at the inner cavity bottom wall position of the tank body. The inner cavity upper wall of the fixed air shell is provided with a plurality of air injection holes. The inner cavity bottom of the fixed air shell is fixedly connected with an air inlet pipe. The bottom end of the air inlet pipe extends to the inner cavity bottom wall of the tank body.

[0013] Further, the air supply unit comprises a fixed support, a rotating disc, a servo motor, a connecting frame A, a moving guide rod, an air cylinder, a connecting frame B, an input pipe, and an output pipe. The fixed support is fixedly arranged at the outer wall position of the tank body. The fixed support is rotatably connected with a rotating disc. The side wall of the fixed support is fixedly connected with a servo motor. The output shaft end of the servo motor is fixedly connected with the center of the rotating disc.

[0014] Further, the inner cavity of the air cylinder is slidably connected with a moving piston. One side of the moving piston is fixedly connected with one end of the moving guide rod. The other end of the moving guide rod extends through the inner cavity wall of the air cylinder and extends to the outside of the wall. The top end of the moving guide rod is fixedly connected with the connecting frame A. The connecting frame A is rotatably connected with the side wall of the rotating disc. The bottom end of the air cylinder is rotatably connected with the connecting frame B. One end of the connecting frame B is fixedly connected with the outer wall of the tank body.

[0015] Further, the inner cavity of the air cylinder is fixedly connected with an input pipe. The input pipe is provided with an input one-way valve. The inner cavity of the air cylinder is fixedly connected with an output pipe. The output pipe is provided with an output one-way valve. One end of the output pipe extends to the bottom end of the air inlet pipe and is connected with the air inlet pipe.

[0016] Further, the spiral flow guide assembly comprises a flow guide cylinder, an annular fixed support, a rotating shaft, a connecting cylinder, and a spiral fin. The flow guide cylinder is fixedly arranged in the inner cavity of the tank body. The flow guide cylinder is arranged at the upper position of the fixed air shell. The inner cavity of the flow guide cylinder is fixedly connected with a plurality of annular fixed supports. The center position of the annular fixed support is rotatably connected with a rotating shaft. The bottom end of the rotating shaft is fixedly connected with a connecting cylinder. The arc-shaped wall of the connecting cylinder is fixedly connected with a plurality of spiral fins.

[0017] Further, a plurality of micro-holes are formed on the helical sheet.

[0018] Further, the self-cleaning assembly comprises a connecting bracket, a rotating rod, a connecting sleeve, a connecting rod and a scraper, the connecting bracket is fixedly arranged at the inner wall of the tank body, one end of the connecting bracket is rotatably connected with the rotating rod, and the bottom end of the rotating rod is fixedly connected with the upper end of the rotating shaft.

[0019] Further, the arc-shaped wall of the rotating rod is fixedly connected with the connecting sleeve, the arc-shaped wall of the connecting sleeve is fixedly connected with the connecting rod, one end of the connecting rod is fixedly connected with the scraper, and the scraper is in contact with the inner wall of the tank body.

[0020] Through the above technical solutions of the present application, in order to solve the problem that the ordinary fermentation tank stirring system is easy to cause shear damage to the bacteria due to continuous mechanical stirring when stirring the bacteria culture solution in the prior art, the present application designs a pneumatic circulating assembly, generates an upward airflow through the pneumatic circulating assembly, uses the upward airflow to drive the liquid flow, realizes the stirring function, reduces the mechanical damage, and at the same time designs a spiral flow guide assembly, which can automatically rotate when the upward airflow is generated, thereby driving the liquid to spiral flow, so that the microorganisms can be fully mixed with the culture solution through the spiral, further improving the mixing efficiency, and further setting a self-cleaning assembly, which can automatically rotate and scrape the inner wall of the tank when the upward airflow is generated, thereby preventing the bacteria and metabolites from scaling. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0022] Figure 1 It is a whole structure schematic diagram of one embodiment of the present application;

[0023] Figure 2 It is an internal structure schematic diagram of one embodiment of the present application;

[0024] Figure 3 It is an internal plane structure schematic diagram of one embodiment of the present application;

[0025] Figure 4 It is a structure schematic diagram of a jet unit of one embodiment of the present application;

[0026] Figure 5 It is a structure schematic diagram of a gas supply unit of one embodiment of the present application;

[0027] Figure 6 The internal structure diagram of the air cylinder of one embodiment of the present application;

[0028] Figure 7 The structure diagram of the spiral flow guide assembly of one embodiment of the present application;

[0029] Figure 8 The structure diagram of the spiral blade of one embodiment of the present application;

[0030] Figure 9 The structure diagram of the self-cleaning assembly of one embodiment of the present application.

[0031] In the figure:

[0032] Fermentation tank body 1, tank body 101, tank cover 102, support foot 103, one-way air valve 104;

[0033] Pneumatic circulation assembly 2, fixed air shell 201, air inlet pipe 202, air injection hole 203, fixed support 204, rotating disc 205, servo motor 206, connecting frame A 207, moving guide rod 208, air cylinder 209, moving piston 210, input pipe 212, output pipe 213;

[0034] Spiral flow guide assembly 3, flow guide cylinder 301, annular fixed support 302, rotating shaft 303, connecting cylinder 304, spiral blade 305, micro hole 306;

[0035] Self-cleaning assembly 4, connecting support 401, rotating rod 402, connecting sleeve 403, connecting rod 404, scraper 405. DETAILED DESCRIPTION

[0036] In order for those skilled in the art to better understand the scheme of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a 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 should belong to the scope of protection of the present application.

[0037] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0038] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0039] In addition, in addition to indicating the orientation or positional relationship, the above-mentioned partial terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0040] In addition, the terms "mount", "set", "provided with", "connected", "connected", "sleeved" should be broadly understood. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] Please refer to Figures 1-9 As shown in the drawings, the high-efficiency fermenter for microbial oil displacement includes:

[0042] A fermenter body 1 for culturing microorganisms;

[0043] A pneumatic circulating assembly 2, which comprises a jet unit and a gas supply unit, the jet unit is fixedly arranged in the inner cavity of the fermentation tank body 1, the gas supply unit is fixedly arranged at the outer wall of the fermentation tank body 1, and the gas supply unit is connected with the jet unit, and the jet unit is used to form an upward gas flow in the inner cavity of the fermentation tank body 1;

[0044] A spiral flow guide assembly 3, which is fixedly arranged in the inner cavity of the fermentation tank body 1, and is used to automatically rotate when the upward gas flow is generated;

[0045] A self-cleaning assembly 4, which is fixedly arranged in the inner cavity of the fermentation tank body 1, and is connected with the spiral flow guide assembly 3, and is used to periodically scrape the tank wall;

[0046] Through the above technical scheme, the upward gas flow is generated by the pneumatic circulating assembly 2, the liquid is driven to flow by the upward gas, the stirring function is realized, the mechanical damage is reduced, and the spiral flow guide assembly 3 is designed, which can automatically rotate when the upward gas flow is generated, so as to drive the liquid to spiral flow, so that the microorganisms can be fully mixed with the culture solution through the spiral, and the mixing efficiency is further improved. Further, the self-cleaning assembly 4 is further arranged, which can automatically rotate and scrape the inner wall of the tank when the upward gas flow is generated, so as to prevent the bacteria and metabolites from scaling;

[0047] The fermentation tank body 1 comprises a tank body 101, a tank cover 102, a supporting foot 103 and a one-way air valve 104, the bottom of the tank body 101 is fixedly provided with the supporting foot 103, the upper part of the tank body 101 is fixedly connected with the tank cover 102, and the one-way air valve 104 is installed on the tank cover 102, and the one-way air valve 104 is used for discharging gas in the tank;

[0048] The jet unit comprises a fixed gas shell 201, an air inlet pipe 202 and a jet hole 203, the fixed gas shell 201 is fixedly arranged at the inner cavity bottom wall position of the tank body 101, a plurality of jet holes 203 are formed at the inner cavity upper wall of the fixed gas shell 201, and the inner cavity bottom of the fixed gas shell 201 is fixedly connected with the air inlet pipe 202, and the bottom end of the air inlet pipe 202 extends to the inner cavity bottom wall of the tank body 101. Through the technical scheme, the gas enters the inner cavity of the fixed gas shell 201 through the air inlet pipe 202, and is sprayed out through the jet hole 203;

[0049] The air supply unit includes a fixed support 204, a rotating disc 205, a servo motor 206, a connecting frame A 207, a moving guide rod 208, an air cylinder 209, a connecting frame B 211, an input pipe 212 and an output pipe 213, the fixed support 204 is fixedly arranged at the outer wall of the tank body 101, the rotating disc 205 is rotatably connected to the fixed support 204, the servo motor 206 is fixedly connected to the side wall of the fixed support 204, and the output shaft of the servo motor 206 is fixedly connected to the center of the rotating disc 205, so that the rotating disc 205 can be rotated by the working of the servo motor 206, and the rotating function of the rotating disc 205 is realized.

[0050] The moving piston 210 is slidably connected in the inner cavity of the air cylinder 209, one side of the moving piston 210 is fixedly connected with one end of the moving guide rod 208, the other end of the moving guide rod 208 penetrates the inner cavity wall of the air cylinder 209 and extends out of the wall, the top end of the moving guide rod 208 is fixedly connected with the connecting frame A 207, the connecting frame A 207 is rotatably connected with the side wall of the rotating disc 205, and the connecting frame B 211 is rotatably connected to the bottom end of the air cylinder 209, one end of the connecting frame B 211 is fixedly connected with the outer wall of the tank body 101, so that the one end of the connecting frame A 207 can be circularly moved by the rotation of the rotating disc 205, thereby the moving guide rod 208 can reciprocate in the inner cavity of the air cylinder 209, and the moving piston 210 can reciprocate.

[0051] The input pipe 212 is fixedly connected in the inner cavity of the air cylinder 209, an input check valve is installed on the input pipe 212, the output pipe 213 is fixedly connected in the inner cavity of the air cylinder 209, an output check valve is installed on the output pipe 213, and one end of the output pipe 213 extends to the bottom end of the air inlet pipe 202 and is connected with the air inlet pipe 202, so that one end of the input pipe 212 extends to the gas source, the gas source is one of nitrogen, oxygen and carbon dioxide, when the moving piston 210 reciprocates in the inner cavity of the air cylinder 209, the gas can be sucked into the inner cavity of the air cylinder 209 by the upward movement of the moving piston 210, and when the moving piston 210 moves downward, the gas can be delivered to the inner cavity of the fixed gas shell 201 through the output pipe 213, and then sprayed through the air injection hole 203, so that the upward airflow is formed in the tank body, and the liquid and the bacteria are mixed by the upward airflow, which is particularly suitable for culturing shear-sensitive anaerobic / facultative anaerobic bacteria such as methanogenic archaea.

[0052] The spiral flow guide assembly 3 comprises a flow guide cylinder 301, an annular fixing support 302, a rotating shaft 303, a connecting cylinder 304 and spiral blades 305, the flow guide cylinder 301 is fixedly arranged in the inner cavity of the tank body 101, the flow guide cylinder 301 is arranged at the upper position of the fixed air chamber 201, a plurality of annular fixing supports 302 are fixedly connected in the inner cavity of the flow guide cylinder 301, the rotating shaft 303 is rotatably connected at the center position of the annular fixing support 302, the connecting cylinder 304 is fixedly connected at the bottom end of the rotating shaft 303, a plurality of spiral blades 305 are fixedly connected at the arc wall of the connecting cylinder 304, through the technical solution, the spiral blades 305 can be driven to rotate by the rising air flow, and the culture solution can be driven to spiral flow when the spiral blades 305 rotate, so that the culture solution can be fully mixed.

[0053] A plurality of micropores 306 are formed in the spiral blades 305, and the micropores 306 are in a honeycomb shape, through the technical solution, the micropores 306 can be arranged to make the bubbles be broken twice when the bubbles pass through, so as to further improve the oxygen mass transfer efficiency.

[0054] The self-cleaning assembly 4 comprises a connecting support 401, a rotating rod 402, a connecting sleeve 403, a connecting rod 404 and a scraper 405, the connecting support 401 is fixedly arranged at the inner wall of the tank body 101, the rotating rod 402 is rotatably connected at one end of the connecting support 401, and the bottom end of the rotating rod 402 is fixedly connected with the upper end of the rotating shaft 303.

[0055] The arc wall of the rotating rod 402 is fixedly connected with the connecting sleeve 403, the arc wall of the connecting sleeve 403 is fixedly connected with the connecting rod 404, one end of the connecting rod 404 is fixedly connected with the scraper 405, and the scraper 405 is in contact with the inner wall of the tank body 101, through the technical solution, the spiral blades 305 can be driven to rotate when the rising air flow is generated, the rotation of the spiral blades 305 can drive the connecting cylinder 304 to rotate, so as to drive the rotating shaft 303 to rotate, and then drive the rotating rod 402 to rotate, the rotation of the rotating rod 402 can drive the scraper 405 to rotate, and the inner wall of the tank body 101 is scraped, so that the scraper 405 is automatically rotated and the inner wall is scraped when the rising air flow is generated, so as to prevent the bacteria / metabolites from being scaled.

[0056] The circuit and electronic components and modules are all prior art, and those skilled in the art can realize them without further description, and the content protected by the application does not involve improvement of software and methods.

[0057] The above descriptions are only the preferred embodiments of the present application, and are not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A high-efficiency fermenter for microbial enhanced oil recovery, characterized in that: The high-efficiency fermenter for microbial enhanced oil recovery includes: Fermentation tank body (1), the fermentation tank body (1) is used for culturing microorganisms; The pneumatic circulation assembly (2) includes a jetting unit and an air supply unit. The jetting unit is fixedly installed in the inner cavity of the fermenter body (1), and the air supply unit is fixedly installed on the outer wall of the fermenter body (1). The air supply unit is connected to the jetting unit. The jetting unit is used to form an upward airflow in the inner cavity of the fermenter body (1). Spiral guide assembly (3) is fixedly installed in the inner cavity of the fermenter body (1) and is used to automatically rotate when the airflow rises. The self-cleaning component (4) is fixedly installed in the inner cavity of the fermenter body (1). The self-cleaning component (4) is connected to the spiral guide component (3). The self-cleaning component (4) is used to periodically scrape the tank wall.

2. The high-efficiency fermenter for microbial enhanced oil recovery according to claim 1, characterized in that: The fermenter body (1) includes a tank body (101), a tank cover (102), a support foot (103), and a one-way valve (104). The support foot (103) is fixedly installed at the bottom of the tank body (101), and the tank cover (102) is fixedly connected to the upper part of the tank body (101). The one-way valve (104) is installed on the tank cover (102).

3. The high-efficiency fermenter for microbial enhanced oil recovery according to claim 1, characterized in that: The jet unit includes a fixed air shell (201), an air inlet pipe (202), and jet holes (203). The fixed air shell (201) is fixedly installed at the bottom wall of the inner cavity of the tank (101). Several jet holes (203) are opened on the upper wall of the inner cavity of the fixed air shell (201). The air inlet pipe (202) is fixedly connected to the bottom of the inner cavity of the fixed air shell (201). The bottom end of the air inlet pipe (202) extends to the bottom wall of the inner cavity of the tank (101).

4. The high-efficiency fermenter for microbial enhanced oil recovery according to claim 1, characterized in that: The gas supply unit includes a fixed bracket (204), a rotating disk (205), a servo motor (206), a connecting frame A (207), a moving guide rod (208), an air cylinder (209), a connecting frame B (211), an input pipe (212), and an output pipe (213). The fixed bracket (204) is fixedly installed on the outer wall of the tank (101). The rotating disk (205) is rotatably connected to the fixed bracket (204). The servo motor (206) is fixedly connected to the side wall of the fixed bracket (204). The end of the output shaft of the servo motor (206) is fixedly connected to the center of the rotating disk (205).

5. The high-efficiency fermenter for microbial enhanced oil recovery according to claim 4, characterized in that: A movable piston (210) is slidably connected in the inner cavity of the air cylinder (209). One end of a movable guide rod (208) is fixedly connected to one side of the movable piston (210). The other end of the movable guide rod (208) penetrates the inner wall of the air cylinder (209) and extends to the outside of the wall. A connecting frame A (207) is fixedly connected to the top of the movable guide rod (208). The connecting frame A (207) is rotatably connected to the side wall of the rotating disk (205). A connecting frame B (211) is rotatably connected to the bottom of the air cylinder (209). One end of the connecting frame B (211) is fixedly connected to the outer wall of the tank (101).

6. The high-efficiency fermenter for microbial enhanced oil recovery according to claim 4, characterized in that: An input pipe (212) is fixedly connected to the inner cavity of the air cylinder (209), and an input one-way valve is installed on the input pipe (212). An output pipe (213) is fixedly connected to the inner cavity of the air cylinder (209), and an output one-way valve is installed on the output pipe (213). One end of the output pipe (213) extends to the bottom end of the air inlet pipe (202) and is connected to the air inlet pipe (202).

7. The high-efficiency fermenter for microbial enhanced oil recovery according to claim 1, characterized in that: The spiral guide assembly (3) includes a guide tube (301), an annular fixed bracket (302), a rotating shaft (303), a connecting cylinder (304), and spiral blades (305). The guide tube (301) is fixedly installed in the inner cavity of the tank (101). The guide tube (301) is positioned above the fixed gas shell (201). Several annular fixed brackets (302) are fixedly connected in the inner cavity of the guide tube (301). The rotating shaft (303) is rotatably connected at the center of the annular fixed bracket (302). The connecting cylinder (304) is fixedly connected at the bottom end of the rotating shaft (303). Several spiral blades (305) are fixedly connected to the arc-shaped wall of the connecting cylinder (304).

8. The high-efficiency fermenter for microbial enhanced oil recovery according to claim 7, characterized in that: The spiral blade (305) has a plurality of micropores (306) formed in a honeycomb pattern.

9. The high-efficiency fermenter for microbial enhanced oil recovery according to claim 1, characterized in that: The self-cleaning component (4) includes a connecting bracket (401), a rotating rod (402), a connecting sleeve (403), a connecting rod (404), and a scraper (405). The connecting bracket (401) is fixedly installed on the inner wall of the tank (101). The rotating rod (402) is rotatably connected to one end of the connecting bracket (401). The bottom end of the rotating rod (402) is fixedly connected to the upper end of the rotating shaft (303).

10. The high-efficiency fermenter for microbial enhanced oil recovery according to claim 9, characterized in that: A connecting sleeve (403) is fixedly connected to the arc-shaped wall of the rotating rod (402), and a connecting rod (404) is fixedly connected to the arc-shaped wall of the connecting sleeve (403). A scraper (405) is fixedly connected to one end of the connecting rod (404), and the scraper (405) contacts the inner wall of the tank (101).

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