Plasma disinfection sterilizer

Abstract

The invention relates to the technical field of disinfection and sterilization, in particular to a plasma disinfection and sterilization device, which comprises an air inlet part, an air outlet part and an air outlet part, the filtering part is connected with the air inlet part and comprises a filtering cavity and a ventilating pipeline; the plasma generating part is connected with the filtering part and comprises a plasma generator and a heat dissipation shell arranged on the outer ring of the plasma generator; the air outlet part is connected with the plasma generating part and comprises a plasma air outlet channel, a heat dissipation channel and an air direction adjusting blade; the data monitoring module is arranged on the outer ring of the air outlet part and comprises an intelligent camera and a temperature sensor; and the control module is connected with the air inlet part, the plasma generation part, the air outlet part and the data monitoring unit, and is used for adjusting the working parameters of the plasma disinfection sterilizer according to the data obtained by the data monitoring module, so that the disinfection and sterilization effect is improved, and the working cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of disinfection and sterilization, and in particular to a plasma disinfection and sterilization device. Background Art

[0002] Plasma is a highly ionized gas that contains a large number of free electrons, ions, and non-ionized neutral particles. Plasma disinfection and sterilization uses high-frequency electric fields or microwaves to ionize gas molecules in the air to form plasma. The charged particles in these plasmas can quickly destroy the cell structure of microorganisms, including cell membranes, cell walls, and internal genetic material, thereby achieving rapid and efficient disinfection and sterilization effects. In the field of disinfection and sterilization, traditional methods such as high-temperature steam sterilization and chemical disinfectant immersion can effectively kill microorganisms to a certain extent, but they also have some limitations, such as long processing time, restrictions on the material of items, and possible chemical residues. Plasma disinfection and sterilization have the advantages of environmental protection, broad spectrum, and no residue. During the disinfection process, it does not require the addition of any chemical reagents and will not cause secondary pollution.

[0003] Chinese patent application publication number: CN116772353A, discloses a plasma air sterilizer, including a sterilizer body, a filter assembly, a plasma generating assembly, an airflow regulating assembly and a rotating assembly; the sterilizer body includes a bottom shell and a shell body, a ventilation channel is formed in the shell body, an air outlet connected to the ventilation channel is provided on the outer surface of the shell body, the bottom shell is rotatably connected to one end of the shell body, and an air inlet connected to the ventilation channel is provided on the bottom shell; the filter assembly is arranged in the ventilation channel; the plasma generating assembly is arranged in the ventilation channel; the airflow regulating assembly is arranged in the ventilation channel and is located at the outlet end of the plasma generating assembly; the rotating assembly is installed on the bottom shell, and is used to drive the shell body to rotate, so as to adjust the air outlet angle. It can be seen that the above technical solution lacks a monitoring module and a control module, and it is impossible to adjust the working parameters of the sterilizer according to the actual situation of the disinfection scene. Summary of the invention

[0004] To this end, the present invention provides a plasma disinfection sterilizer to overcome the problem in the prior art that the working parameters cannot be adjusted according to the actual disinfection situation due to the lack of a monitoring module and a control module in the disinfection sterilizer.

[0005] To achieve the above object, the present invention provides a plasma disinfection sterilizer, comprising:

[0006] An air inlet portion, comprising an air inlet, an air inlet channel, an air inlet blade arranged inside the air inlet channel, and a first motor connected to the air inlet blade for driving the air inlet blade;

[0007] A filter part connected to the air inlet part, comprising a filter chamber, a ventilation duct, and a filter screen arranged at the connection between the filter chamber and the air inlet channel and the ventilation duct respectively;

[0008] A plasma generating part connected to the filtering part comprises a plasma generator and a heat dissipation shell arranged on the outer ring of the plasma generator, wherein the heat dissipation shell is provided with heat dissipation holes;

[0009] An air outlet portion, which is connected to the plasma generating portion, and includes a plasma air outlet channel, a heat dissipation channel, and a wind direction adjusting blade arranged inside the plasma air outlet channel;

[0010] A data monitoring module, which is arranged on the outer ring of the air outlet, and includes an intelligent camera for image recognition and analysis and a temperature sensor for monitoring temperature changes;

[0011] A control module is connected to the air inlet, plasma generating unit, air outlet and data monitoring unit, and is used to determine the air outlet mode of the plasma disinfection sterilizer according to the storage characteristic value of the cold storage, and adjust the power of the first motor according to the cooling rate under the first preset time in the cold storage. The control module adjusts the power of the plasma generator according to the placement time of the carcass in the cold storage, adjusts the opening and closing of the wind direction adjustment blade according to the wind effect evaluation value of the pedestrian flow, and determines whether the sterilization effect of the plasma disinfection sterilizer meets the preset standard according to the sterilization efficiency characteristic value of the last sampling.

[0012] Furthermore, the control module determines the air outlet mode of the plasma disinfection sterilizer according to the cold storage storage characteristic value, wherein:

[0013] If the cold storage characteristic value is less than the preset storage characteristic value, it is determined that the air outlet mode of the plasma disinfection sterilizer is directional air outlet;

[0014] If the cold storage characteristic value is greater than or equal to the preset storage characteristic value, it is determined that the air outlet mode of the plasma disinfection and sterilization device is swing air outlet.

[0015] Furthermore, the cold storage storage characteristic value is determined by the average spacing between carcasses and the total weight of the carcasses in the cold storage.

[0016] Furthermore, the control module adjusts the power of the first motor according to the cooling rate under the first preset time in the cold storage, wherein:

[0017] If the cooling rate is less than a first preset cooling rate, adjusting the power of the first motor to a corresponding value using a first power adjustment coefficient;

[0018] If the cooling rate is greater than or equal to the first preset cooling rate and less than the second preset cooling rate, the power of the first motor is adjusted to a corresponding value using a second power adjustment coefficient;

[0019] If the cooling rate is greater than or equal to the second preset cooling rate, the power of the first motor is adjusted to a corresponding value using a third power adjustment coefficient.

[0020] Furthermore, the control module is provided with different power adjustment modes for reducing the power of the plasma disinfection and sterilization device according to the placement time of the carcass in the cold storage, and each adjustment mode has a different adjustment range for the power of the plasma generator.

[0021] Furthermore, the control module adjusts the opening and closing of the wind direction adjusting blades according to the pedestrian wind effect evaluation value, wherein:

[0022] If the pedestrian flow wind effect evaluation value is less than the first preset wind effect characteristic value, all the wind direction adjustment blades are opened;

[0023] If the pedestrian flow wind effect evaluation value is greater than or equal to the first preset wind effect characteristic value and less than the second preset wind effect characteristic value, the wind direction adjustment blade is opened by 2 / 3;

[0024] If the pedestrian wind effect evaluation value is greater than or equal to the second preset wind effect characteristic value, the wind direction adjustment blade is opened by 1 / 3.

[0025] Furthermore, the pedestrian flow wind efficiency evaluation value is determined based on the door opening time of the cold storage within the second preset time and the number of people entering the cold storage.

[0026] Furthermore, the control module determines whether the sterilization effect of the plasma disinfection sterilizer meets the preset standard according to the sterilization efficiency characteristic value of the last sampling, wherein:

[0027] If the sterilization efficiency characteristic value is less than the preset sterilization efficiency threshold, it is determined that the sterilization effect of the plasma disinfection sterilizer meets the preset standard, and the optimal sterilization time interval is determined according to the sterilization efficiency characteristic value of the sampling batch;

[0028] If the sterilization efficiency characteristic value is greater than or equal to the preset sterilization efficiency threshold, it is determined that the sterilization effect of the plasma disinfection sterilizer does not meet the preset standard, and the power of the plasma disinfection sterilizer is increased according to the difference between the sterilization efficiency characteristic value and the preset sterilization efficiency threshold.

[0029] Furthermore, the sterilization efficacy characteristic value is determined by a plate colony counting method.

[0030] Furthermore, the power increase amplitude of the plasma disinfection sterilizer is positively correlated with the sterilization efficiency difference, wherein the sterilization efficiency difference is the difference between the sterilization efficiency characteristic value and the preset sterilization efficiency threshold.

[0031] Compared with the prior art, the beneficial effect of the present invention lies in that the present invention includes an air inlet part, a filter part, a plasma generating part, an air outlet part, a data monitoring module and a control module. Through the combined action of various parts and modules, the working efficiency of the plasma disinfection sterilizer is improved and the working cost is reduced.

[0032] Furthermore, the present invention introduces a cold storage storage characteristic value, which is jointly determined by the average spacing of the carcasses in the cold storage and the total weight of the carcasses. The control module determines the air outlet mode of the plasma disinfection sterilizer according to the cold storage storage characteristic value. If the cold storage storage characteristic value is less than the preset storage characteristic value, the air outlet mode of the plasma disinfection sterilizer is determined to be directional air outlet; if the cold storage storage characteristic value is greater than or equal to the preset storage characteristic value, the air outlet mode of the plasma disinfection sterilizer is determined to be swinging air outlet. By comparing the cold storage storage characteristic value with the preset storage characteristic value and setting different air outlet modes, the efficiency of disinfection and sterilization can be improved.

[0033] Furthermore, the control module adjusts the power of the first motor according to the cooling rate under the first preset time in the cold storage, and determines different power adjustment coefficients by comparing the cooling rate with the first preset cooling rate and the second preset cooling rate, thereby improving the adaptability of the plasma disinfection sterilizer.

[0034] Furthermore, the control module is provided with different power adjustment modes for reducing the power of the plasma disinfection sterilizer according to the placement time of the carcass in the cold storage, and each adjustment mode has a different adjustment range for the power of the plasma generator, thereby reducing the cost by adjusting the power of the plasma disinfection sterilizer.

[0035] Furthermore, the present invention introduces a pedestrian wind effect evaluation value, which is jointly determined by the opening time of the cold storage within a second preset time and the number of people entering the storage. The control module adjusts the opening and closing of the wind direction adjusting blades according to the pedestrian wind effect evaluation value. If the pedestrian wind effect evaluation value is less than the first preset wind effect characteristic value, the wind direction adjusting blades are fully opened; if the pedestrian wind effect evaluation value is greater than or equal to the first preset wind effect characteristic value and less than the second preset wind effect characteristic value, the wind direction adjusting blades are opened by 2 / 3; if the pedestrian wind effect evaluation value is greater than or equal to the second preset wind effect characteristic value, the wind direction adjusting blades are opened by 1 / 3. By adjusting the opening and closing of the wind direction adjusting blades, the air outlet speed can be increased, the air circulation in the cold storage is improved, and the disinfection and sterilization effect is improved.

[0036] Furthermore, the control module determines whether the sterilization effect of the plasma disinfection sterilizer meets the preset standard based on the sterilization efficiency characteristic value of the last sampling, wherein if the sterilization efficiency characteristic value is less than the preset sterilization efficiency threshold, it is determined that the sterilization effect of the plasma disinfection sterilizer meets the preset standard, and the optimal sterilization time interval is determined according to the sterilization efficiency characteristic value of the sampling batch; if the sterilization efficiency characteristic value is greater than or equal to the preset sterilization efficiency threshold, it is determined that the sterilization effect of the plasma disinfection sterilizer does not meet the preset standard, and the power of the plasma disinfection sterilizer is increased according to the difference between the sterilization efficiency characteristic value and the preset sterilization efficiency threshold, and the quality controllability of disinfection and sterilization is ensured by determining the sterilization efficiency characteristic value of the last sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic structural diagram of a plasma disinfection and sterilization device according to an embodiment of the present invention;

[0038] Figure 2 This is a schematic diagram of the position of a plasma disinfection sterilizer in a cold storage according to an embodiment of the present invention;

[0039] Figure 3 A flow chart of adjusting the power of the first motor according to an embodiment of the present invention;

[0040] Figure 4 A flow chart of an embodiment of the present invention for determining whether the sterilization effect of a plasma disinfection sterilizer meets a preset standard;

[0041] In the figure: 1. Cold storage; 2. Ventilation duct; 3. Plasma disinfection sterilizer; 4. Air inlet; 5. Air inlet channel; 6. Air inlet blades; 7. First motor; 8. Filter chamber; 9. Ventilation duct; 10. Filter; 11. Plasma generator; 12. Heat dissipation housing; 13. Heat dissipation holes; 14. Air outlet channel; 15. Heat dissipation channel; 16. Wind direction adjustment blades; 17. Smart camera; 18. Temperature sensor. DETAILED DESCRIPTION

[0042] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0043] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0044] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0045] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] See also Figures 1 to 4 As shown, they are respectively a structural schematic diagram of a plasma disinfection sterilizer according to an embodiment of the present invention; a schematic diagram of the position of a plasma disinfection sterilizer in a cold storage according to an embodiment of the present invention; a flow chart of adjusting the power of the first motor according to an embodiment of the present invention; and a flow chart of determining whether the sterilization effect of the plasma disinfection sterilizer meets the preset standard according to an embodiment of the present invention.

[0047] A plasma disinfection and sterilization device according to an embodiment of the present invention comprises:

[0048] An air inlet portion, comprising an air inlet port 4, an air inlet channel 5, an air inlet blade 6 disposed inside the air inlet channel 5, and a first motor 7 connected to the air inlet blade 6 for driving the air inlet blade 6;

[0049] A filter part connected to the air inlet part, comprising a filter chamber 8, a ventilation duct 9, and a filter screen 10 provided at the connection between the filter chamber 8 and the air inlet channel 5 and the ventilation duct 9;

[0050] A plasma generating part, which is connected to the filtering part, comprises a plasma generator 11 and a heat dissipation shell 12 arranged on the outer ring of the plasma generator 11, and a heat dissipation hole 13 is arranged on the heat dissipation shell 12;

[0051] An air outlet portion, which is connected to the plasma generating portion, and includes a plasma air outlet channel 14, a heat dissipation channel 15, and a wind direction adjusting blade 16 disposed inside the plasma air outlet channel 14;

[0052] A data monitoring module, which is arranged at the outer ring of the air outlet, includes a smart camera 17 for image recognition and analysis and a temperature sensor 18 for monitoring temperature changes;

[0053] A control module is connected to the air inlet, plasma generating unit, air outlet and data monitoring unit, and is used to determine the air outlet mode of the plasma disinfection sterilizer 3 according to the storage characteristic value of the cold storage, and adjust the power of the first motor 7 according to the cooling rate under the first preset time in the cold storage 1. The control module adjusts the power of the plasma generator 11 according to the placement time of the carcass in the cold storage 1, adjusts the opening and closing of the wind direction adjustment blade 16 according to the wind effect evaluation value of the flow of people, and determines whether the sterilization effect of the plasma disinfection sterilizer 3 meets the preset standard according to the sterilization efficiency characteristic value of the last sampling.

[0054] Specifically, the plasma disinfection and sterilization device 3 is arranged inside the ventilation pipe 2 at the top of the cold storage 1, and the bottom outer ring of the plasma disinfection and sterilization device 3 is connected to the top surface of the cold storage 1 by screws.

[0055] Specifically, the control module, such as a PLC or a chip with a program, is not specifically limited and is used to adjust the working parameters of the plasma disinfection and sterilization device 3 according to the data obtained by the data monitoring module.

[0056] Specifically, the control module determines the air outlet mode of the plasma disinfection and sterilization device 3 according to the storage characteristic value of the cold storage 1, wherein:

[0057] If the storage characteristic value of the cold storage 1 is less than the preset storage characteristic value 0.95, it is determined that the air outlet mode of the plasma disinfection sterilizer 3 is directional air outlet;

[0058] If the storage characteristic value of the cold storage 1 is greater than or equal to the preset storage characteristic value, it is determined that the air outlet mode of the plasma disinfection and sterilization device 3 is swing air outlet.

[0059] Specifically, the process of determining the storage characteristic value of the cold storage 1 by the average spacing of the carcasses and the total weight of the carcasses in the cold storage 1 includes:

[0060] The ratio of the average spacing of the carcasses to the average spacing threshold is squared and multiplied by the first evaluation coefficient to obtain the average spacing evaluation value, where the first evaluation coefficient is 0.52 and the average spacing threshold is 0.5m;

[0061] The ratio of the total weight of the carcass to the weight threshold is squared and then multiplied by the second evaluation coefficient to obtain a weight evaluation value, where the second evaluation coefficient is 0.45 and the weight threshold is 1000 kg;

[0062] The average spacing evaluation value and the weight evaluation value are added together and recorded as the cold storage storage characteristic value.

[0063] Specifically, the average spacing of the carcasses is obtained by the smart camera 17 .

[0064] Specifically, the total weight of the carcass is obtained by manual measurement.

[0065] Specifically, the control module adjusts the power of the first motor 7 according to the cooling rate in the cold storage 1 under the first preset time of 30 minutes, wherein:

[0066] If the cooling rate is less than the first preset cooling rate of 3°C / h, the power of the first motor 7 is adjusted to a corresponding value using a first power adjustment coefficient of 1.01;

[0067] If the cooling rate is greater than or equal to the first preset cooling rate and less than the second preset cooling rate of 5°C / h, the power of the first motor 7 is adjusted to a corresponding value using the second power adjustment coefficient 1.03;

[0068] If the cooling rate is greater than or equal to the second preset cooling rate, the power of the first motor 7 is adjusted to a corresponding value using a third power adjustment coefficient of 1.05.

[0069] Specifically, the temperature reduction rate is obtained by the temperature sensor 18 .

[0070] Specifically, the first preset time is the time from when the room temperature carcass is placed in the cold storage 1 to when the surface of the carcass is frozen, but the above value is not limited thereto, and those skilled in the art can adjust the value according to actual needs.

[0071] Specifically, the control module is provided with different power adjustment modes for reducing the power of the plasma disinfection sterilizer 3 according to the placement time of the carcass in the cold storage 1, and each adjustment mode has a different adjustment range for the power of the plasma generator 11, wherein:

[0072] If the placement time is less than the first preset placement time of 1.5 hours, the power of the plasma generator 11 is adjusted to a corresponding value using a first adjustment coefficient of 0.99;

[0073] If the placement time is greater than or equal to the first preset placement time and less than the second preset placement time of 2h, the power of the plasma generator 11 is adjusted to a corresponding value using a second adjustment coefficient of 0.98;

[0074] If the placement time is greater than or equal to the second preset placement time, the power of the plasma generator 11 is adjusted to a corresponding value using a third adjustment coefficient of 0.96.

[0075] Specifically, the control module adjusts the opening and closing of the wind direction adjusting blade 16 according to the pedestrian wind effect evaluation value, wherein:

[0076] If the pedestrian flow wind effect evaluation value is less than the first preset wind effect characteristic value 0.90, the wind direction adjustment blades 16 are fully opened;

[0077] If the pedestrian flow wind effect evaluation value is greater than or equal to the first preset wind effect characteristic value and less than the second preset wind effect characteristic value 1.10, the wind direction adjustment blade 16 is opened by 2 / 3;

[0078] If the pedestrian wind effect evaluation value is greater than or equal to the second preset wind effect characteristic value, the wind direction adjusting blade 16 is opened by 1 / 3.

[0079] Specifically, the process of determining the pedestrian wind efficiency evaluation value according to the door opening time of the cold storage 1 and the number of people entering the cold storage within the second preset time of 3 hours includes:

[0080] The square root of the ratio of the door opening time of cold storage 1 to the door opening time threshold is multiplied by the third evaluation coefficient to obtain the door opening time evaluation value, where the third evaluation coefficient is 0.55 and the door opening time threshold is 10 minutes;

[0081] The square root of the ratio of the number of personnel entering the warehouse to the threshold number of personnel entering the warehouse is multiplied by the fourth evaluation coefficient to obtain the evaluation value of the number of personnel entering the warehouse, where the fourth evaluation coefficient is 0.42 and the threshold number of personnel entering the warehouse is 2;

[0082] The sum of the door opening time evaluation value and the number of people entering the warehouse is recorded as the people flow wind effect evaluation value.

[0083] Specifically, the door opening time and the number of people entering the warehouse are obtained through the smart camera 17.

[0084] Specifically, the control module determines whether the sterilization effect of the plasma disinfection sterilizer 3 meets the preset standard according to the sterilization efficiency characteristic value of the last sampling, wherein:

[0085] If the sterilization efficiency characteristic value is less than the preset sterilization efficiency threshold value of 100 CFU / g, it is determined that the sterilization effect of the plasma disinfection sterilizer 3 meets the preset standard, and the optimal sterilization time interval is determined according to the sterilization efficiency characteristic value of the sampling batch;

[0086] If the sterilization efficiency characteristic value is greater than or equal to the preset sterilization efficiency threshold, it is determined that the sterilization effect of the plasma disinfection sterilizer 3 does not meet the preset standard, and the power of the plasma disinfection sterilizer 3 is increased according to the difference between the sterilization efficiency characteristic value and the preset sterilization efficiency threshold.

[0087] Specifically, the process of determining the sterilization efficacy characteristic value by plate colony counting method includes:

[0088] Step S1, determining a sampling point inside the cold storage 1;

[0089] Step S2, starting from the carcass being placed in the cold storage 1, a sample is taken at the sampling point every 30 minutes;

[0090] Step S3, sending the collected samples to the laboratory for bacterial culture for 24 hours;

[0091] Step S4, measuring the number of bacteria in the sample after bacterial culture by plate colony counting method;

[0092] Step S5, taking the average value of the bacterial counts of the samples in the same sampling batch to obtain the sterilization efficiency characteristic value of the sampling.

[0093] Specifically, the sampling points are determined according to the actual area of ​​the cold storage 1 and the number of carcasses. For example, a carcass is selected every 1 m, and 3 points are randomly selected on each selected carcass as sampling points. There is no specific limitation and it can be determined according to the actual internal conditions of the cold storage 1.

[0094] Specifically, the power increase of the plasma disinfection sterilizer 3 is positively correlated with the sterilization efficiency difference, wherein:

[0095] If the sterilization efficiency difference is less than the first preset sterilization efficiency difference of 10 CFU / g, the power of the plasma disinfection sterilizer 3 is increased to a corresponding value using a fourth adjustment coefficient of 1.02;

[0096] If the sterilization efficiency difference is greater than or equal to the first preset sterilization efficiency difference and less than the second preset sterilization efficiency difference of 20 CFU / g, the power of the plasma disinfection sterilizer 3 is increased to the corresponding value using the fifth adjustment coefficient 1.04;

[0097] If the sterilization efficiency difference is greater than or equal to the second preset sterilization efficiency difference, the power of the plasma disinfection sterilizer 3 is increased to a corresponding value using a sixth adjustment coefficient of 1.07;

[0098] The sterilization efficiency difference is the difference between the sterilization efficiency characteristic value and the preset sterilization efficiency threshold.

[0099] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0100] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A plasma disinfection sterilizer, characterized in that: include: An air inlet portion, comprising an air inlet, an air inlet channel, an air inlet blade arranged inside the air inlet channel, and a first motor connected to the air inlet blade for driving the air inlet blade; A filter part connected to the air inlet part, comprising a filter chamber, a ventilation duct, and a filter screen arranged at the connection between the filter chamber and the air inlet channel and the ventilation duct respectively; A plasma generating part, which is connected to the filtering part, comprises a plasma generator and a heat dissipation shell arranged on the outer ring of the plasma generator, wherein the heat dissipation shell is provided with heat dissipation holes; An air outlet portion, which is connected to the plasma generating portion, and includes a plasma air outlet channel, a heat dissipation channel, and a wind direction adjusting blade arranged inside the plasma air outlet channel; A data monitoring module, which is arranged on the outer ring of the air outlet, and includes an intelligent camera for image recognition and analysis and a temperature sensor for monitoring temperature changes; A control module is connected to the air inlet, plasma generating unit, air outlet and data monitoring unit, and is used to determine the air outlet mode of the plasma disinfection sterilizer according to the storage characteristic value of the cold storage, and adjust the power of the first motor according to the cooling rate under the first preset time in the cold storage. The control module adjusts the power of the plasma generator according to the placement time of the carcass in the cold storage, adjusts the opening and closing of the wind direction adjustment blade according to the wind effect evaluation value of the pedestrian flow, and determines whether the sterilization effect of the plasma disinfection sterilizer meets the preset standard according to the sterilization efficiency characteristic value of the last sampling.

2. The plasma disinfection sterilizer according to claim 1, characterized in that: The control module determines the air outlet mode of the plasma disinfection sterilizer according to the cold storage storage characteristic value, wherein: If the cold storage characteristic value is less than the preset storage characteristic value, it is determined that the air outlet mode of the plasma disinfection sterilizer is directional air outlet; If the cold storage characteristic value is greater than or equal to the preset storage characteristic value, it is determined that the air outlet mode of the plasma disinfection and sterilization device is swing air outlet.

3. The plasma disinfection sterilizer according to claim 2, characterized in that: The cold storage storage characteristic value is determined by the average spacing of the carcasses in the cold storage and the total weight of the carcasses.

4. The plasma disinfection sterilizer according to claim 3, characterized in that: The control module adjusts the power of the first motor according to the cooling rate under the first preset time in the cold storage, wherein: If the cooling rate is less than a first preset cooling rate, adjusting the power of the first motor to a corresponding value using a first power adjustment coefficient; If the cooling rate is greater than or equal to the first preset cooling rate and less than the second preset cooling rate, the power of the first motor is adjusted to a corresponding value using a second power adjustment coefficient; If the cooling rate is greater than or equal to the second preset cooling rate, the power of the first motor is adjusted to a corresponding value using a third power adjustment coefficient.

5. The plasma disinfection sterilizer according to claim 4, characterized in that: The control module is provided with different power adjustment modes for reducing the power of the plasma disinfection and sterilization device according to the placement time of the carcass in the cold storage, and each adjustment mode has a different adjustment range for the power of the plasma generator.

6. The plasma disinfection sterilizer according to claim 5, characterized in that: The control module adjusts the opening and closing of the wind direction adjustment blade according to the pedestrian wind effect evaluation value, wherein: If the pedestrian flow wind effect evaluation value is less than the first preset wind effect characteristic value, all the wind direction adjustment blades are opened; If the pedestrian flow wind effect evaluation value is greater than or equal to the first preset wind effect characteristic value and less than the second preset wind effect characteristic value, the wind direction adjustment blade is opened by 2 / 3; If the pedestrian wind effect evaluation value is greater than or equal to the second preset wind effect characteristic value, the wind direction adjustment blade is opened by 1 / 3.

7. The plasma disinfection sterilizer according to claim 6, characterized in that: The pedestrian flow wind efficiency evaluation value is determined based on the door opening time of the cold storage and the number of people entering the cold storage within the second preset time.

8. The plasma disinfection sterilizer according to claim 7, characterized in that: The control module determines whether the sterilization effect of the plasma disinfection sterilizer meets the preset standard according to the sterilization efficiency characteristic value of the last sampling, wherein: If the sterilization efficiency characteristic value is less than the preset sterilization efficiency threshold, it is determined that the sterilization effect of the plasma disinfection sterilizer meets the preset standard, and the optimal sterilization time interval is determined according to the sterilization efficiency characteristic value of the sampling batch; If the sterilization efficiency characteristic value is greater than or equal to the preset sterilization efficiency threshold, it is determined that the sterilization effect of the plasma disinfection sterilizer does not meet the preset standard, and the power of the plasma disinfection sterilizer is increased according to the difference between the sterilization efficiency characteristic value and the preset sterilization efficiency threshold.

9. The plasma disinfection sterilizer according to claim 8, characterized in that: The sterilization efficacy characteristic value is determined by a plate colony counting method.

10. The plasma disinfection sterilizer according to claim 9, characterized in that: The power increase range of the plasma disinfection sterilizer is positively correlated with the sterilization efficiency difference, wherein the sterilization efficiency difference is the difference between the sterilization efficiency characteristic value and the preset sterilization efficiency threshold.

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