Efficient and energy-saving microbial fermentation system

Abstract

The utility model discloses an efficient and energy-saving microbial fermentation system, and belongs to the technical field of microbial fermentation. According to the technical scheme, the system comprises an air purification unit, a fermentation unit and a water circulation unit which are sequentially connected through a pipeline, and a controller; the air purification unit comprises a purifier body, a base is arranged at the bottom of the purifier body, and a filter plate and an ultraviolet disinfection lamp in the horizontal direction are arranged at the bottom of the purifier body; the fermentation unit comprises at least two fermentation tanks which are connected in series; each fermentation tank is at least provided with an air inlet II, an air outlet II, a feed port and a discharge port; a temperature sensor I and a humidity sensor are also arranged in the fermentation tank; the water circulation unit comprises a water tank, a second temperature sensor and a hot water heat exchanger are arranged in the water tank, and the water tank is provided with a first water inlet and a first water outlet. The utility model can realize comprehensive control on the fermentation process, improve the fermentation efficiency and reduce the energy consumption, and has the advantages of simplicity and convenience in operation, easiness in maintenance and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of microbial fermentation, and particularly relates to an energy-efficient microbial fermentation system. Background Art

[0002] Microbial fermentation is a process of converting organic substances into useful products by utilizing the metabolic activities of microorganisms. Traditional fermentation processes usually rely on natural fermentation or simple mechanical stirring, making it difficult to achieve precise control of the fermentation process. In addition, if the waste substances such as heat, waste gas, and waste water generated during the fermentation process are not properly treated, they will pollute the environment. To overcome these drawbacks, in recent years, scientists have been committed to developing new microbial fermentation systems to comprehensively optimize the fermentation process by integrating advanced control technologies, separation and purification technologies, energy-saving and environmental protection technologies, etc. Patent CN105820950B solves the problem that the pH value is not easily controlled during the fermentation process of the existing device, and solves the problem that the number of seed culture expansions in each round of fermentation of the existing fermentation method is too many, resulting in too long time consumption and too high cost. The fermentation system includes a fermentation tank device and an N-stage seed tank device. The fermentation tank device includes a culture tank, a neutralizer storage tank, a circulation pump, and a programmable logic controller. The composition and structure of each stage of the seed tank device are the same as those of the fermentation tank device, only the sizes are different. The fermentation method includes pre-installation, seed culture expansion, seed temporary storage, fermentation, N-stage seed re-culture, and circulation steps. It shortens the seed culture expansion time, reduces the risk of contamination, greatly saves the time and cost of fermentation production, and improves the accuracy of neutralizer addition, avoids pipeline scaling and blockage, makes the pH value easier to control, and improves the fermentation production level, but there are still problems such as poor air quality entering the fermentation tank and high energy consumption. Summary of the Utility Model

[0003] The utility model provides an energy-efficient microbial fermentation system, which can achieve comprehensive control of the fermentation process, improve the fermentation efficiency, reduce the energy consumption, and has the advantages of simple operation and easy maintenance.

[0004] The technical solution of the utility model is as follows:

[0005] An energy-efficient microbial fermentation system, comprising an air purification unit, a fermentation unit, a water circulation unit, and a controller, which are connected in sequence through pipelines; the air purification unit includes a purifier body, a base is provided at the bottom of the purifier body, a top cover is detachably provided at the top of the purifier body, an air outlet one is provided on the top cover, a horizontal filter plate is provided at the bottom of the purifier body, an intake space is below the filter plate, an intake port one is provided in the intake space, the intake port one is connected to an external air pump, a filter frame is provided in the intake space, an activated carbon adsorbent is filled in the filter frame, the filter plate is a composite filter screen structure, the composite filter screen includes an inner filter screen and an outer filter screen, an ultraviolet disinfection lamp is provided at the top inside the purifier body, the ultraviolet disinfection lamp is provided with a switch one, and the switch one is electrically connected to the controller; the fermentation unit includes at least two serially connected fermentation tanks, each fermentation tank includes a tank body, a detachable tank cover, and support legs, each fermentation tank is provided with at least an intake port two, an air outlet two, a feed port, and a discharge port, the intake port two is provided on the tank cover, the air outlet one and the intake port two are connected through a pipeline, the air outlet two is provided on the tank cover, the feed port is provided on the tank body, the discharge port is provided at the bottom on the side of the tank body, a vertical pipe is rotatably installed on the tank cover, the upper end of the vertical pipe passes through the tank cover and is rotatably connected to a rotary joint, a water supply pipe is fixedly installed on the rotary joint, the lower end of the vertical pipe communicates with a horizontal pipe, and spray heads are provided at both ends of the horizontal pipe; an electric motor is provided on the outer wall at the bottom of the tank body, a stirring device is provided inside the tank body, the stirring device includes a stirring shaft and stirring blades provided on the stirring shaft, the upper end of the stirring shaft is fixedly connected to the horizontal pipe, and the lower end of the stirring shaft passes through the tank body and is connected to the electric motor; a temperature sensor one and a humidity sensor are also provided inside the tank body, both the temperature sensor one and the humidity sensor are electrically connected to the controller, the tank body is a double-layer structure, the outer layer is a circulating water layer, and the inner layer is a fermentation chamber, the circulating water layer is provided with a circulating water inlet and a circulating water outlet; the water circulation unit includes a water tank, a temperature sensor two is provided inside the water tank, the temperature sensor two is electrically connected to the controller, the water tank is provided with a water inlet one and a water outlet one, the water inlet one is communicated with the circulating water outlet through a first circulating pipeline, the water outlet one is connected to the circulating water inlet through a second circulating pipeline, a cold water heat exchanger is provided on the first circulating pipeline, and a hot water heat exchanger is provided on the second circulating pipeline 304; the air outlet two is communicated with the water tank through a pipeline.

[0006] Preferably, the outer filter screen is an activated carbon filter screen, and the inner filter screen is a HEPA filter screen.

[0007] Preferably, a high-pressure water pump is provided on the water supply pipe, a pump switch is provided on the high-pressure water pump, and the pump switch is electrically connected to the controller.

[0008] Preferably, a motor switch is provided on the electric motor, a water spray valve is provided on the vertical pipe, and both the motor switch and the water spray valve are electrically connected to the controller.

[0009] Preferably, pumps are provided on both the first circulating pipeline and the second circulating pipeline.

[0010] Preferably, a spray pipe is provided in the middle of the horizontal pipe, and the spray pipe is connected with a nozzle.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The air purification unit of the utility model realizes the deep purification of air quality by integrating multi-stage filtration and ultraviolet disinfection technologies. Specifically, the combination of activated carbon adsorbent and composite filter effectively removes particulate matter, harmful gases and odors in the air, ensuring that the air entering the fermentation unit is pure and pollution-free. In addition, the introduction of ultraviolet disinfection lamps reduces the microbial content in the air to an extremely low level, creating a sterile growth environment for microbial fermentation. This all-round and multi-level air purification strategy significantly improves the stability and safety of the fermentation process.

[0013] 2. As the core part of the whole system, the fermentation unit realizes the precise control of the fermentation process. The real-time monitoring of temperature sensors and humidity sensors provides accurate environmental parameters for the controller, enabling the system to automatically adjust fermentation conditions such as temperature and humidity according to preset conditions to maintain the best fermentation state. At the same time, the optimized design of the stirring device not only improves the mixing uniformity of the fermentation broth, but also promotes the full contact between microorganisms and nutrients, accelerating the fermentation reaction rate. In addition, the detachable tank cover and feed inlet design facilitate users' daily operation and maintenance, improving the flexibility and practicability of the system.

[0014] 3. The combination of water tank, hot water heat exchanger and circulation pipeline adopted by the water circulation unit constitutes an efficient water circulation system. It can adjust the temperature of the circulating water according to actual needs to meet the temperature control requirements of the fermentation tank. At the same time, the recycling of the circulating water not only reduces the waste of water resources, but also realizes the recovery and reuse of energy through heat exchange, significantly reducing the energy consumption of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the utility model.

[0016] Figure 2 is a schematic structural diagram of the air purification unit of the utility model.

[0017] Figure 3 is a schematic structural diagram of the fermentation unit of the utility model.

[0018] In the figure, 1 is the purifier body; 101 is the base; 102 is the top cover; 103 is the first air outlet; 104 is the filter plate; 1041 is the inner filter screen; 1042 is the outer filter screen; 105 is the first air inlet; 106 is the filter frame; 107 is the ultraviolet disinfection lamp; 2 is the fermentation tank; 201 is the tank body; 202 is the tank cover; 203 is the support leg; 204 is the second air inlet; 205 is the second air outlet; 206 is the feed inlet; 207 is the discharge outlet; 208 is the vertical pipe; 209 is the rotary joint; 210 is the water supply pipe; 211 is the horizontal pipe; 2111 is the spray pipe; 2112 is the nozzle; 212 is the spray head; 213 is the motor; 214 is the stirring shaft; 215 is the stirring blade; 216 is the circulating water layer; 217 is the circulating water inlet; 218 is the circulating water outlet; 3 is the water tank; 301 is the first water inlet; 302 is the first water outlet; 303 is the first circulating pipeline; 304 is the second circulating pipeline. Detailed implementation mode

[0019] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment 1

[0021] As Figures 1 - 3 shown, this embodiment provides an energy-efficient microbial fermentation system, which includes an air purification unit, a fermentation unit, a water circulation unit connected in sequence through pipelines, and a controller;

[0022] The air purification unit includes a purifier body 1. A base 101 is provided at the bottom of the purifier body 1. A top cover 102 is detachably provided at the top of the purifier body 1. A first air outlet 103 is provided on the top cover 102. A horizontal filter plate 104 is provided at the bottom of the purifier body 1. The lower part of the filter plate 104 is an intake space. An intake port 105 is provided in the intake space. The intake port 105 is connected to an external air pump. A filter frame 106 is provided in the intake space. The filter frame 106 is filled with an activated carbon adsorbent. The filter plate 104 is a composite filter screen structure. The composite filter screen includes an inner filter screen 1041 and an outer filter screen 1042. The outer filter screen 1042 is an activated carbon filter screen, and the inner filter screen 1041 is a HEPA filter screen. An ultraviolet disinfection lamp 107 is provided at the top inside the purifier body 1. The ultraviolet disinfection lamp 107 is provided with a switch one, and the switch one is electrically connected to the controller;

[0023] The fermentation unit includes at least two fermenters 2 connected in series. Each fermenter includes a tank body 201, a detachable tank cover 202, and support legs 203. Each fermenter 2 is provided with at least an air inlet two 204, an air outlet two 205, a feed inlet 206, and a discharge outlet 207. The air inlet two 204 is arranged on the tank cover 202. The air outlet one 103 and the air inlet two 204 are connected by a pipeline. The air outlet two 205 is arranged on the tank cover 202. The feed inlet 206 is arranged on the tank body 201. The discharge outlet 207 is arranged at the bottom of the side of the tank body 201. A vertical pipe 208 is rotatably installed on the tank cover 202. The upper end of the vertical pipe 208 passes through the tank cover 202 and is rotatably connected to a rotary joint 209. A water supply pipe 210 is fixedly installed on the rotary joint 209. A high-pressure water pump is arranged on the water supply pipe 210. A pump switch is arranged on the high-pressure water pump. The pump switch is electrically connected to the controller. The lower end of the vertical pipe 208 communicates with a horizontal pipe 211. Nozzles 212 are arranged at both ends of the horizontal pipe 211. A spray pipe 2111 is arranged in the middle of the horizontal pipe 211. The spray pipe is connected with a nozzle 2112. An electric motor 213 is arranged on the outer wall of the bottom of the tank body 201. A stirring device is arranged in the tank body 201. The stirring device includes a stirring shaft 214 and stirring blades 215 arranged on the stirring shaft. The upper end of the stirring shaft 214 is fixedly connected to the horizontal pipe 211. The lower end of the stirring shaft 214 passes through the tank body 201 and is connected to the electric motor 213. An electric motor switch is arranged on the electric motor 213. A water spray valve is arranged on the vertical pipe 208. Both the electric motor switch and the water spray valve are electrically connected to the controller;

[0024] A temperature sensor one and a humidity sensor are also arranged in the tank body 201. Both the temperature sensor one and the humidity sensor are electrically connected to the controller. The tank body 201 is of a double-layer structure. The outer layer is a circulating water layer 216, and the inner layer is a fermentation chamber. The circulating water layer 216 is provided with a circulating water inlet 217 and a circulating water outlet 218;

[0025] The water circulation unit includes a water tank 3. A temperature sensor two is arranged in the water tank 3. The temperature sensor two is electrically connected to the controller. The water tank 3 is provided with a water inlet one 301 and a water outlet one 302. The water inlet one 301 is communicated with the circulating water outlet 218 through a circulating pipeline one 303. The water outlet one 302 is connected to the circulating water inlet 217 through a circulating pipeline two 304. A cold water heat exchanger is arranged on the circulating pipeline one 303. A hot water heat exchanger is arranged on the circulating pipeline two 304. Pumps are arranged on both the circulating pipeline one 303 and the circulating pipeline two 304.

[0026] The air outlet two 205 is communicated with the water tank 3 through a pipeline.

[0027] Working process: An external air pump supplies air to the purifier body 1 through the air inlet one 105; the air is filtered by the activated carbon adsorbent to remove bacteria and viruses; the air passes through the HEPA filter screen to further remove fine particles; the purified air enters the fermentation unit through the air outlet one 103;

[0028] Inside the fermenter 2, the stirring device is driven by the motor 213 to fully mix the fermentation materials; the temperature sensor 1 and the humidity sensor real-time monitor the temperature and humidity inside the fermenter 2; the controller automatically adjusts the operation of the water circulation unit according to the sensor data to keep the fermentation temperature constant; the water supply pipe 210 sprays a small amount of water into the fermenter through the horizontal pipe 211 and the nozzle 212 to provide humidity control; after fermentation is completed, the fermented and mature materials are taken out through the discharge port 207; the hot water heat exchanger in the water tank 3 heats or cools the circulating water according to the fermentation temperature requirement; the circulating water circulates through the first circulating pipeline 303 and the second circulating pipeline 304 to provide a constant temperature environment; the controller automatically adjusts the operation of the hot water heat exchanger and the cold water heat exchanger according to the data of the second temperature sensor to keep the temperature of the circulating water constant.

[0029] When the fermenter 2 needs to be cleaned after use, open the valve of the pipeline connected to the discharge port 207, interlock and open the switch of the motor 213, the water spraying valve and the pump switch. The motor is started to drive the stirring device and the horizontal pipe 211 to rotate. The high-pressure water pump is started, and high-pressure water is sprayed out from the nozzle 212 and the nozzle 2112. The nozzle 2112 makes a circular motion along with the horizontal pipe 211 to clean the inner wall of the tank body 201. The water after flushing is discharged from the discharge port 207. Then close the valve connected to the discharge port, and interlock and close the switch of the motor 213, the water spraying valve and the pump switch.

[0030] Although the present invention has been described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, those of ordinary skill in the art can make various equivalent modifications or substitutions to the embodiments of the present invention, and all such modifications or substitutions should be within the scope covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An efficient and energy-saving microbial fermentation system, characterized in that, It includes an air purification unit, a fermentation unit, a water circulation unit connected in sequence through pipelines, and a controller; The air purification unit includes a purifier body (1). A base (101) is provided at the bottom of the purifier body (1). A top cover (102) is detachably provided at the top of the purifier body (1). An air outlet one (103) is provided on the top cover (102). A horizontal filter plate (104) is provided at the bottom of the purifier body (1). Below the filter plate (104) is an intake space. An air inlet one (105) is provided in the intake space. The air inlet one (105) is connected to an external air pump. A filter frame (106) is provided in the intake space. An activated carbon adsorbent is filled in the filter frame (106). The filter plate (104) is a composite filter screen structure. The composite filter screen includes an inner filter screen (1041) and an outer filter screen (1042). An ultraviolet disinfection lamp (107) is provided at the inner top of the purifier body (1). The ultraviolet disinfection lamp (107) is provided with a switch one. The switch one is electrically connected to the controller; The fermentation unit includes at least two serially connected fermentation tanks (2). Each fermentation tank includes a tank body (201), a detachable tank cover (202), and support legs (203). Each fermentation tank (2) is provided with at least an air inlet two (204), an air outlet two (205), a feed inlet (206), and a discharge outlet (207). The air inlet two (204) is provided on the tank cover (202). The air outlet one (103) and the air inlet two (204) are connected through a pipeline. An air outlet two (205) is provided on the tank cover (202). A feed inlet (206) is provided on the tank body (201). A discharge outlet (207) is provided at the bottom on the side of the tank body (201). A vertical pipe (208) is rotatably installed on the tank cover (202). The upper end of the vertical pipe (208) passes through the tank cover (202) and is rotatably connected to a rotary joint (209). A water supply pipe (210) is fixedly installed on the rotary joint (209). The lower end of the vertical pipe (208) communicates with a horizontal pipe (211). Nozzles (212) are provided at both ends of the horizontal pipe (211); A motor (213) is provided on the outer wall at the bottom of the tank body (201). A stirring device is provided inside the tank body (201). The stirring device includes a stirring shaft (214) and stirring blades (215) provided on the stirring shaft. The upper end of the stirring shaft (214) is fixedly connected to the horizontal pipe (211). The lower end of the stirring shaft (214) passes through the tank body (201) and is connected to the motor (213); A temperature sensor one and a humidity sensor are also provided inside the tank body (201). The temperature sensor one and the humidity sensor are both electrically connected to the controller. The tank body (201) is a double-layer structure. The outer layer is a circulating water layer (216), and the inner layer is a fermentation chamber. The circulating water layer (216) is provided with a circulating water inlet (217) and a circulating water outlet (218); The water circulation unit includes a water tank (3). A second temperature sensor is arranged inside the water tank (3), and the second temperature sensor is electrically connected to the controller. The water tank (3) is provided with a first water inlet (301) and a first water outlet (302). The first water inlet (301) is communicated with the circulating water outlet (218) through a first circulating pipeline (303), and the first water outlet (302) is connected to the circulating water inlet (217) through a second circulating pipeline (304). A cold water heat exchanger is arranged on the first circulating pipeline (303), and a hot water heat exchanger is arranged on the second circulating pipeline (304); The second air outlet (205) is communicated with the water tank (3) through a pipeline.

2. The highly efficient and energy-saving microbial fermentation system according to claim 1, wherein, The outer filter screen (1042) is an activated carbon filter screen, and the inner filter screen (1041) is a HEPA filter screen.

3. The highly efficient and energy-saving microbial fermentation system according to claim 1, wherein A high-pressure water pump is arranged on the water supply pipe (210), a pump switch is arranged on the high-pressure water pump, and the pump switch is electrically connected to the controller.

4. The highly efficient and energy-saving microbial fermentation system according to claim 1, characterized in that, A motor switch is arranged on the motor (213), a water spraying valve is arranged on the vertical pipe (208), and both the motor switch and the water spraying valve are electrically connected to the controller.

5. The highly efficient and energy-saving microbial fermentation system according to claim 1, wherein Pumps are arranged on both the first circulating pipeline (303) and the second circulating pipeline (304).

6. The highly efficient and energy-saving microbial fermentation system according to claim 1, characterized in that, A spray pipe (2111) is arranged in the middle of the horizontal pipe (211), and the spray pipe is connected with a nozzle (2112).

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