Automatic control system of fermentation tank deodorization equipment

Abstract

In order to solve the problem that the existing gas purification and deodorization equipment is difficult to automatically adjust, the utility model provides an automatic control system for deodorization equipment of a fermentation tank, which comprises a tank body, ventilation equipment, deodorization equipment, a temperature sensor, a wind speed sensor and a controller, a material cavity for fermentation is arranged in the tank body, and a heating device and a stirring device are arranged in the material cavity; the material cavity is further provided with a feeding port, an air inlet and an air outlet, the air inlet is connected with the ventilation equipment, and the air outlet is connected with the deodorization equipment through a pipeline; a temperature sensor and a wind speed sensor are further arranged in the pipeline between the tank body and the deodorization equipment, the wind speed sensor detects the wind quantity in the pipeline, and the temperature sensor is used for detecting the gas temperature in the pipeline; the wind speed sensor and the temperature sensor are respectively connected with the controller, and the controller is further connected with the ventilation equipment, the heating device, the stirring device and the deodorization equipment; the deodorization equipment can complete deodorization according to detection values of the temperature sensor and the wind speed sensor.

Description

Technical Field

[0001] This utility model relates to the field of fermentation gas deodorization technology, and in particular to an automatic control system for a fermenter deodorization device. Background Technology

[0002] Biological fermentation is a major method for treating kitchen waste. However, the fermentation process generates a large amount of odorous and even harmful gases, requiring specialized gas purification devices for treatment, as illustrated in patent application CN117753148A. Furthermore, to maintain microbial activity, parameters such as temperature, humidity, and oxygen content within the fermentation tank need to be controlled. Temperature and oxygen content can be controlled through a combination of airflow and heating power adjustments. However, changes in temperature and airflow within the fermentation tank can affect the gas purification process, potentially leading to insufficient deodorization power resulting in the escape of odorous gases, or excessive deodorization power causing byproduct emissions to exceed standards. Therefore, a fermentation tank deodorization device capable of automatically controlling airflow and temperature is needed. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies and provide an automatic control system for deodorizing fermentation tanks.

[0004] To solve the above problems, the present invention adopts the following technical solution:

[0005] An automatic control system for a fermenter deodorization device includes a fermentation tank, a ventilation device, a deodorization device, a temperature sensor, a wind speed sensor, and a controller. The tank contains a fermentation chamber equipped with a heating device and a stirring device. The chamber also has a feed inlet, an air inlet, and an air outlet. The feed inlet is connected to external equipment for feeding fermentation materials, the air inlet is connected to the ventilation device, and the air outlet is connected to the deodorization device via a pipeline. A temperature sensor and a wind speed sensor are installed in the pipeline between the tank and the deodorization device. The wind speed sensor detects the airflow in the pipeline, and the temperature sensor detects the gas temperature within the pipeline. The wind speed sensor and temperature sensor are connected to the controller, which is also connected to the ventilation device, the heating device, the stirring device, and the deodorization device.

[0006] Furthermore, the wind speed sensor and temperature sensor transmit current signals within a set range to represent airflow and temperature.

[0007] Furthermore, the deodorization device includes a high-pressure reaction zone, through which the gas introduced into the deodorization device needs to pass.

[0008] Furthermore, the high-pressure reaction zone in the deodorization device is connected to a high-power narrow-pulse power supply; the output of the high-power narrow-pulse power supply is a high-repetition-frequency high-voltage narrow pulse with adjustable amplitude and frequency.

[0009] Furthermore, the high-pressure reaction zone is also equipped with a syringe-type reactor; the tips of the reactors with opposite polarities are arranged opposite each other, and the distance between them ranges from 20mm to 100mm.

[0010] Furthermore, the ventilation equipment is a variable frequency fan; the ventilation volume of the ventilation equipment can be adjusted between 0% and 100% of the rated ventilation volume.

[0011] Furthermore, the bottom of the tank is also provided with a discharge port that can be opened and closed.

[0012] The beneficial effects of this utility model are as follows:

[0013] By setting up controllers, temperature sensors, and air volume sensors, a linkage relationship is formed between the deodorization equipment, ventilation equipment, and heating device, so that the waste gas generated by the material at different fermentation stages can be effectively purified by the deodorization equipment, avoiding the escape of odor or excessive by-products, the main by-product being ozone.

[0014] By setting up a high-voltage reaction zone and combining it with a high-power narrow-pulse power supply, free radicals are generated to oxidize and reduce odors, thereby effectively purifying the odors and preventing them from escaping and causing harm to the human body or polluting the environment. Attached Figure Description

[0015] Figure 1 This is a system connection diagram for Example 1. Detailed Implementation

[0016] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0017] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the figures only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0018] Example 1:

[0019] like Figure 1 As shown, an automatic control system for a fermenter deodorization device includes a fermentation tank, a ventilation device, a deodorization device, a temperature sensor, a wind speed sensor, and a controller. The tank contains a fermentation chamber equipped with a heating device and a stirring device. The chamber also has a feed inlet, an air inlet, and an air outlet. The feed inlet is connected to external equipment for feeding fermentation materials, the air inlet is connected to the ventilation device, and the air outlet is connected to the deodorization device via a pipeline. A temperature sensor and a wind speed sensor are installed in the pipeline between the tank and the deodorization device. The wind speed sensor detects the airflow in the pipeline, which is represented by the product of the wind speed and the cross-sectional area of ​​the pipeline; in this example, m is used. 3 The unit is / h; a temperature sensor is used to detect the gas temperature in the pipeline; the wind speed sensor and temperature sensor are connected to the controller, which is also connected to the ventilation equipment, heating device, stirring device, and deodorization equipment; the controller can control the output power of the deodorization equipment based on the values ​​fed back by the wind speed sensor and temperature sensor. Additionally, the controller can control the ventilation volume of the ventilation equipment and the output power of the heating device to control the oxygen content and temperature inside the tank. It should be noted that the oxygen content and temperature inside the tank need to be set at different stages of fermentation for different substances. The bottom of the tank is also equipped with an openable and closable discharge port for discharging the fermented material, which can be used to produce organic fertilizer, etc. It should be noted that the optimal correspondence between the wind speed sensor, temperature sensor, and the output power of the deodorization equipment can be obtained through multiple experiments.

[0020] The ventilation equipment uses a variable frequency fan with a rated ventilation volume of 2000 m³ / h. 3 / h, which allows for precise control of air volume; the ventilation volume of the ventilation equipment can be adjusted between 0 and 100% of the rated ventilation volume, and can even work under power output conditions exceeding the rated ventilation volume for a short period of time.

[0021] The wind speed sensor and temperature sensor transmit current signals within a set range to represent airflow and temperature. In this example, the current signal values ​​fed back by the wind speed sensor and temperature sensor are both between 4 and 20 mA, and the airflow and temperature are proportional to the corresponding current signal values.

[0022] The deodorization equipment includes a high-voltage reaction zone. Gas entering the deodorization equipment must pass through this zone, which in this example is a multi-level discharge high-energy plasma zone. The high-voltage reaction zone primarily uses pulsed plasma to create a strong electric field, generating high-energy electrons (5eV~20eV) under the influence of this field. These electrons ionize various components in the odorous gas, producing a large number of free radicals, such as ·O, ·OH, ·HO2, and their corresponding derivatives. These free radicals can also undergo redox reactions with the odorous gas, achieving the final odor removal without combustion. In this example, the high-voltage reaction zone in the deodorization equipment is connected to a high-power narrow-pulse power supply. The high-power narrow-pulse power supply outputs high-repetition-frequency high-voltage narrow pulses with adjustable amplitude and frequency. The narrow pulse width is less than 1µs, and the amplitude range is adjustable from 0 to 30kV, adjusted by the conduction angle of the power supply output current. The frequency of the narrow pulse is adjustable from 1 to 2000Hz, controlled by the IGBT drive frequency.

[0023] The high-pressure reaction zone is also equipped with syringe-type reactors; the tips of the reactors with opposite polarities are arranged opposite each other, with a distance between them ranging from 20mm to 100mm, and set to 50mm in this example. Multiple reactors are connected in parallel to form a reaction module, the size of which is related to the rated air volume of the ventilation equipment.

[0024] It should be noted that the power output of the deodorization equipment is related to the values ​​detected by the wind speed sensor and the temperature sensor.

[0025] During implementation, a linkage is established between the deodorization equipment, ventilation equipment, and heating device by setting up controllers, temperature sensors, and air volume sensors. This ensures that the waste gas generated at different fermentation stages can be effectively purified by the deodorization equipment, preventing odor from escaping or excessive byproducts, the main byproduct being ozone. By setting up a high-pressure reaction zone and combining it with a high-power narrow-pulse power supply, free radicals are generated to oxidize and reduce odor, achieving effective purification of the odor and preventing it from escaping and causing harm to the human body or pollution to the environment.

[0026] The above description is merely a specific example of this utility model and does not constitute any limitation on this utility model. Obviously, those skilled in the art, after understanding the content and principle of this utility model, may make various modifications and changes in form and details without departing from the principle and structure of this utility model. However, these modifications and changes based on the concept of this utility model are still within the protection scope of the claims of this utility model.

Claims

1. A fermentation tank deodorization equipment automatic control system including a tank body for fermentation, characterized by, The ventilation device, the deodorization device, the temperature sensor, the wind speed sensor and the controller are further included; wherein the tank body is provided with a material cavity for fermentation, the material cavity is provided with a heating device and a stirring device; the material cavity is further provided with a feeding port, an air inlet and an air outlet, the feeding port of the material cavity is connected with a device for feeding fermentation material, the air inlet is connected with the ventilation device, and the air outlet is connected with the deodorization device through a pipeline; the pipeline between the tank body and the deodorization device is further provided with the temperature sensor and the wind speed sensor, the wind speed sensor detects the air volume in the pipeline, and the temperature sensor is used for detecting the temperature of the gas in the pipeline; the wind speed sensor and the temperature sensor are connected with the controller respectively, and the controller is further connected with the ventilation device, the heating device, the stirring device and the deodorization device.

2. The automatic control system of a fermenter deodorization equipment according to claim 1, characterized in that, The wind speed sensor and the temperature sensor are used for indicating the air volume and the temperature by transmitting current signals in a set range.

3. The automatic control system of a fermenter deodorization equipment according to claim 1, characterized in that, The deodorization device includes a high-pressure reaction area, and the gas entering the deodorization device needs to pass through the high-pressure reaction area.

4. The automatic control system of a fermenter deodorization equipment according to claim 3, characterized in that, The high-pressure reaction area in the deodorization device is connected with a high-power narrow pulse power supply; the output of the high-power narrow pulse power supply is a high-repetition-frequency high-voltage narrow pulse with adjustable amplitude and frequency.

5. The automatic control system of a fermenter deodorization equipment according to claim 3, characterized in that, The high-pressure reaction area is further provided with a needle cylinder type reactor; the tips of reactors with different polarities are oppositely arranged, and the spacing range between the two is 20mm to 100mm.

6. The automatic control system of a fermenter deodorization equipment according to claim 1, characterized in that, The ventilation device is a variable frequency fan; the ventilation volume of the ventilation device can be adjusted between 0 to 100% of the rated ventilation volume.

7. The automatic control system of a fermenter deodorization equipment according to claim 1, characterized in that, The bottom of the tank body is further provided with an openable and closable discharging port.

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