Self-adaptive microwave power regulation and control method and device and storage medium

Abstract

The invention relates to a self-adaptive microwave power regulation and control method and device and a storage medium, and the method comprises the steps: obtaining initial data in a microwave barrel in a historical period and basic data in the microwave barrel in a target period, the initial data at least comprising a first temperature and a first humidity, and the basic data at least comprising a second temperature and a second humidity; determining a first dielectric loss factor corresponding to the historical time period based on the initial data; determining a second dielectric loss factor corresponding to the target time period based on the basic data; determining the electric field intensity of the microwave field in the microwave barrel based on the initial data, the basic data and the first dielectric loss factor; determining microwave absorption power based on the electric field intensity and the second dielectric loss factor; and adjusting the power of the magnetron in the microwave barrel based on the microwave absorption power. According to the invention, the technical problem of energy waste caused by the condition that the supply power of the magnetron is greater than the absorption power of the wet waste due to the fact that the change of the microwave absorption power is not considered is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of waste treatment, and in particular to an adaptive microwave power control method, device and storage medium. Background Art

[0002] Radioactive wet waste is generated during nuclear power plant operation and maintenance and nuclear facility operation. In order to solve the problems of waste package expansion, poor long-term stability of waste and high disposal cost when treating such waste by cement solidification process, microwave barrel drying process has begun to be applied in wet waste treatment.

[0003] In the engineering application of microwave barrel drying technology, in order to ensure that the processing capacity of the microwave barrel drying device is maximized, the magnetron will always apply microwaves to the material at the maximum design power during its operation. However, as the temperature of wet waste continues to rise and the water evaporates during the microwave drying process, its moisture content continues to decrease. The increased temperature and decreased humidity will cause the dielectric loss factor of wet waste to decrease, and then its absorption power of microwaves will also decrease accordingly, resulting in a situation where the power supplied by the magnetron is greater than the power absorbed by the wet waste, resulting in energy waste.

[0004] In the related art, there is a problem of energy waste because the change of microwave absorption power is not taken into account, resulting in the situation that the power supplied by the magnetron is greater than the absorption power of the wet waste.

[0005] The above problems need to be solved urgently. Summary of the invention

[0006] The invention discloses an adaptive microwave power control method, a device and a storage medium, aiming to solve the technical problems existing in the prior art.

[0007] The present invention adopts the following technical solutions:

[0008] On the one hand, the present invention provides an adaptive microwave magnetron power control method, which includes: obtaining initial data in a microwave barrel in a historical period, and basic data in the microwave barrel in a target period, wherein the historical period is before the target period, the initial data includes at least a first temperature and a first humidity, and the basic data includes at least a second temperature and a second humidity; based on the initial data, determining a first dielectric loss factor corresponding to the historical period; based on the basic data, determining a second dielectric loss factor corresponding to the target period; based on the initial data, the basic data and the first dielectric loss factor, determining the electric field strength of the microwave field in the microwave barrel, wherein the electric field strength of the microwave field is used to indicate the magnetron strength in the microwave barrel; based on the electric field strength and the second dielectric loss factor, determining the microwave absorption power, wherein the microwave absorption power is used to indicate the power that can be absorbed by wet waste in the microwave barrel; based on the microwave absorption power, adjusting the magnetron power in the microwave barrel.

[0009] Optionally, the method of obtaining initial data in the microwave barrel in the historical period and basic data in the microwave barrel in the target period, wherein the initial data includes at least a first temperature and a first humidity, and the basic data includes at least a second temperature and a second humidity, includes: obtaining a first liquid level height, a mass, a first volume and the first temperature in the microwave barrel in the historical period; determining the first humidity based on the mass, the first volume and the first liquid level height; obtaining a second liquid level height and the second temperature in the microwave barrel in the target period; determining a difference between the second liquid level height and the first liquid level height as a liquid level difference; and determining the second humidity based on the liquid level difference, the first humidity and the mass.

[0010] Optionally, determining the first dielectric loss factor corresponding to the historical period based on the initial data, and determining the second dielectric loss factor corresponding to the target period based on the basic data, include: obtaining a dielectric loss coefficient; obtaining a plurality of historical data before the historical period, wherein the plurality of historical data at least include a plurality of third temperatures and a plurality of third humidity; constructing a dielectric loss factor function based on the dielectric loss coefficient and the plurality of historical data; determining the first dielectric loss factor based on the initial data and the dielectric loss factor function; and determining the second dielectric loss factor based on the basic data and the dielectric loss factor function.

[0011] Optionally, the electric field strength of the microwave field in the microwave barrel is determined based on the initial data, the basic data and the first dielectric loss factor, including: determining a first absorbed power based on the initial data and the basic data, wherein the first absorbed power is used to indicate the power absorbed by the wet waste drying in the microwave barrel; when the initial data includes microwave frequency and a first volume, determining the electric field strength based on the first absorbed power, the microwave frequency, the first volume and the first dielectric loss factor.

[0012] Optionally, determining the first absorption power based on the initial data and the basic data includes: determining the time difference between the historical period and the target period; obtaining the specific heat capacity of the wet waste, the specific heat capacity of water and the thermal coefficient of water vaporization in the microwave barrel; determining the temperature difference based on the first temperature and the second temperature; when the initial data includes mass, determining the first absorption power based on the time difference, the specific heat capacity of the wet waste, the specific heat capacity of water, the thermal coefficient of water vaporization, the temperature difference, the first humidity and the mass.

[0013] Optionally, determining the microwave absorption power based on the electric field strength and the second dielectric loss factor includes: obtaining a microwave absorption coefficient; and when the initial data includes a microwave frequency and the basic data includes a second volume, determining the microwave absorption power based on the electric field strength, the second volume, the second dielectric loss factor and the microwave frequency.

[0014] Optionally, adjusting the magnetron power in the microwave barrel based on the microwave absorption power includes: when the initial data includes an initial power corresponding to the magnetron, determining the magnetron efficiency based on the initial power and the first absorption power; determining the output power required by the magnetron based on the magnetron efficiency and the microwave absorption power; and adjusting the magnetron power in the microwave barrel based on the output power required by the magnetron.

[0015] According to another aspect of an embodiment of the present invention, an adaptive microwave magnetron power control device is also provided, comprising: an acquisition module, used to acquire initial data in a microwave barrel in a historical period, and basic data in a microwave barrel in a target period, wherein the historical period is before the target period, the initial data at least includes a first temperature and a first humidity, and the basic data at least includes a second temperature and a second humidity; a first loss factor module, used to determine a first dielectric loss factor corresponding to the historical period based on the initial data; a second loss factor module, used to determine a second dielectric loss factor corresponding to the target period based on the basic data; a field strength determination module, used to determine the electric field strength of the microwave field in the microwave barrel based on the initial data, the basic data and the first dielectric loss factor, wherein the electric field strength of the microwave field is used to indicate the magnetron strength in the microwave barrel; a microwave absorption power module, used to determine the microwave absorption power based on the electric field strength and the second dielectric loss factor, wherein the microwave absorption power is used to indicate the power that can be absorbed by the wet waste in the microwave barrel; and an adjustment module, used to adjust the magnetron power in the microwave barrel based on the microwave absorption power.

[0016] According to another aspect of an embodiment of the present invention, a non-volatile storage medium is provided, wherein the non-volatile storage medium stores a plurality of instructions, wherein the instructions are suitable for being loaded by a processor and executing any one of the adaptive microwave magnetron power control methods.

[0017] According to another aspect of an embodiment of the present invention, a computer program product is provided, including a computer program, wherein when the computer program is executed by a processor, the steps of any one of the methods for adaptive microwave magnetron power control are implemented.

[0018] The technical solution adopted by the present invention can achieve at least one of the following beneficial effects:

[0019] In an embodiment of the present invention, initial data in a microwave barrel during a historical period and basic data in a microwave barrel during a target period are obtained, wherein the historical period is before the target period, the initial data includes at least a first temperature and a first humidity, and the basic data includes at least a second temperature and a second humidity; based on the initial data, a first dielectric loss factor corresponding to the historical period is determined; based on the basic data, a second dielectric loss factor corresponding to the target period is determined; based on the initial data, the basic data and the first dielectric loss factor, the electric field strength of the microwave field in the microwave barrel is determined, wherein the electric field strength of the microwave field is used to indicate the magnetron strength in the microwave barrel; based on the electric field strength and the second dielectric loss factor, the microwave absorption power is determined, wherein the microwave absorption power is used to indicate the power that can be absorbed by the wet waste in the microwave barrel; based on the microwave absorption power, the magnetron power in the microwave barrel is adjusted. The purpose of determining the microwave absorption power in the current time period based on the first dielectric loss factor, the second dielectric loss factor and the electric field strength is achieved, thereby achieving the technical effect of adjusting the magnetron supply power and reducing energy loss by taking into account the change in microwave absorption power, thereby solving the technical problem of energy waste caused by the fact that the change in microwave absorption power is not taken into account in the related technology, resulting in the magnetron supply power being greater than the wet waste absorption power. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments, which constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions explain the present invention and do not constitute improper limitations on the present invention. In the drawings:

[0021] Figure 1 is a flow chart of an adaptive microwave power control method in embodiment 1 of the present invention;

[0022] Figure 2 is a flow chart of an optional adaptive microwave power control method in embodiment 2 of the present invention;

[0023] Figure 3 It is a structural schematic diagram of an adaptive microwave power control device in Example 3 of the present invention. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. In the description of the present invention, it should be noted that the term "or" is usually used in the sense of including "and / or", unless the content clearly indicates otherwise.

[0025] In the description of the present invention, it should be noted that, 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 a magnetic connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three or more, etc., unless otherwise clearly and specifically limited.

[0026] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] First, to facilitate understanding of the embodiments of the present invention, some terms or nouns involved in the present invention are explained below:

[0028] Microwave refers to electromagnetic waves with a frequency of 300MHz to 300GHz. It is the abbreviation of a limited frequency band in radio waves. Its wavelength is usually between 1 mm and 1 meter and can be divided into decimeter waves, centimeter waves and millimeter waves.

[0029] The heat coefficient of water vaporization usually refers to the latent heat of vaporization of water, which indicates the amount of heat required to change a unit mass of water from liquid to gas at a certain temperature. At standard atmospheric pressure, the latent heat of vaporization of water is about 2260 kJ / kg (or 40.8 kJ / mol).

[0030] The dielectric loss factor indicates the ratio of electrical energy converted into heat energy per unit volume of dielectric in unit time. Under the action of alternating electric field, there is an angle between the current vector and the voltage vector flowing through the dielectric. This angle is called the dielectric loss angle, and the tangent value of the dielectric loss angle is the dielectric loss factor.

[0031] To solve the problems existing in the prior art, the embodiments of the present application provide an adaptive microwave power control method, device and storage medium.

[0032] Example 1

[0033] This embodiment provides an adaptive microwave power control method. Figure 1 As shown, Figure 1 is a flow chart of an adaptive microwave power control method in embodiment 1 of the present invention, the method comprising:

[0034] Step S102, obtaining initial data in the microwave barrel in the historical period and basic data in the microwave barrel in the target period, wherein the historical period is before the target period, the initial data at least includes a first temperature and a first humidity, and the basic data at least includes a second temperature and a second humidity;

[0035] Optionally, based on the initial data of the historical period and the basic data of the target period, the temperature data and humidity data of the wet waste in the microwave barrel can be determined, so that the temperature and humidity will affect the dielectric loss factor in the wet waste, and then affect its absorption power of microwaves, so it is necessary to obtain the above initial data and basic data. In addition, since temperature and humidity indirectly affect the microwave absorption power of wet waste, the initial data and basic data both include at least temperature data and humidity data (the initial data includes at least the first temperature and the first humidity, and the basic data includes at least the second temperature and the second humidity).

[0036] In some preferred embodiments, initial data in the microwave barrel in a historical period and basic data in the microwave barrel in a target period are obtained, wherein the initial data at least include a first temperature and a first humidity, and the basic data at least include a second temperature and a second humidity, including: obtaining a first liquid level height, a mass, a first volume and a first temperature in the microwave barrel in a historical period; determining the first humidity based on the mass, the first volume and the first liquid level height; obtaining a second liquid level height and a second temperature in the microwave barrel in a target period; determining the difference between the second liquid level height and the first liquid level height as the liquid level difference; determining the second humidity based on the liquid level difference, the first humidity and the mass.

[0037] Optionally, the temperature data can be obtained based on a temperature sensor, and the humidity data is obtained by measuring the liquid level in the microwave barrel through a liquid level sensor, thereby determining the humidity in the microwave barrel based on the liquid level. Specifically, the second humidity is calculated by obtaining a first moisture mass based on the product of the mass and the first humidity, calculating the moisture mass change caused by moisture evaporation based on the liquid level difference, subtracting the two (the first moisture mass and the moisture mass change), and dividing the first moisture mass and the moisture mass without considering the humidity change to obtain the second humidity.

[0038] Specifically, the second humidity is calculated as follows:

[0039]

[0040] Among them, M t+Δt is the second humidity, t is the time of the historical period, t+Δt is the time of the target period, M t is the first humidity, H t is the first liquid level height, H t+Δt is the second liquid level height, mt is the mass, ρ is the density of water, and r is the radius of the microwave barrel.

[0041] Optionally, based on the above method, the first temperature and the first humidity of the historical period can be obtained, and the second temperature and the second humidity of the target period can be obtained at the same time, providing a data basis for the subsequent calculation of the impact of temperature and humidity on microwave absorption power.

[0042] Step S104, determining a first dielectric loss factor corresponding to a historical period based on the initial data;

[0043] Step S106, determining a second dielectric loss factor corresponding to the target time period based on the basic data;

[0044] In some preferred embodiments, based on the initial data, a first dielectric loss factor corresponding to the historical period is determined, and based on the basic data, a second dielectric loss factor corresponding to the target period is determined, including: obtaining a dielectric loss coefficient; obtaining a plurality of historical data before the historical period, wherein the plurality of historical data at least include a plurality of third temperatures and a plurality of third humidity; constructing a dielectric loss factor function based on the dielectric loss coefficient and the plurality of historical data; determining a first dielectric loss factor based on the initial data and the dielectric loss factor function; and determining a second dielectric loss factor based on the basic data and the dielectric loss factor function.

[0045] Optionally, to determine the change in the dielectric loss factor, it is necessary to obtain data from multiple time periods, conduct multiple experiments, and obtain a functional expression for the dielectric loss factor, thereby obtaining the correlation between temperature, humidity, and the dielectric loss factor, and thereby determining the change in the second dielectric loss factor based on the second temperature and second humidity of the target time period.

[0046] Specifically, based on multiple historical data between historical periods, experiments were conducted and the dielectric loss factor function was constructed through regression analysis as follows: ε″ t+Δt =f(T t+Δt , M t+Δt ), where ε” is the dielectric loss factor, ε″ t+Δt is the second dielectric loss factor, T t+Δt is the second temperature, M t+Δt The second humidity.

[0047] Optionally, taking saline waste liquid as an example, saline waste liquid is a type of wet waste, which is mostly a dilute solution with water as the solvent. Taking pure water as an example, it only has temperature rise and phase change during the drying process, without the influence of concentration or water content, so it is a simplified case of adaptive control of wet waste microwave drying. When starting to dry (i.e. historical period), first set the initial power P0=3000W corresponding to the magnetron, the microwave frequency is 2450MHz, and the mass of the material m t=4.5kg, first volume V0=4.5L. It should be noted that the above data are all initial data obtained in the historical period. Further, the first temperature T0 of the wet waste is tested by an infrared thermometer (temperature sensor) = 25°C, and the first liquid level height H0 in the microwave barrel is tested by a liquid level meter (liquid level sensor) to be 9.17cm. Based on the above initial data and the dielectric loss factor function, the first dielectric loss factor is determined.

[0048] Optionally, since the correlation between humidity and dielectric loss factor is also related to the solute of the solution, for salt-containing wastewater, humidity and humidity dielectric loss coefficient can be fitted to an approximate value of 1.41073 after calculation. The temperature change has a large effect on the dielectric loss factor. After the temperature is brought in, the dielectric loss factor is calculated as follows:

[0049] ε″=f(T,M)=f(T)=1.41073+23.21797×0.97066 T

[0050] Among them, 23.21797 is the appropriate temperature coefficient, 0.97066 is the temperature dielectric loss coefficient, and T is the temperature. Based on the above method, in the historical period, the first temperature is 25°C, so the first dielectric loss factor ε″ 25 =12.44.

[0051] Optionally, the power adjustment step (interval time) Δt=60s is set, and the initial power P0 of the magnetron is maintained at 3000W within 60s. The second temperature T1=T of the wet waste at 60s is measured by an infrared thermometer. 60s =34.3℃, the second liquid level height in the liquid level gauge test barrel H1 = H 60s =9.17cm. Based on the above data, the second dielectric loss factor ε″ is determined to be 34.3°C. 34.3 =9.77.

[0052] Step S108, determining the electric field strength of the microwave field in the microwave barrel based on the initial data, the basic data and the first dielectric loss factor, wherein the electric field strength of the microwave field is used to indicate the magnetic tube strength in the microwave barrel;

[0053] In microwave drying equipment, magnetron is the key component for generating microwaves. Magnetron forms an electric field inside the material (wet waste) by exciting microwaves and transmitting them into the microwave cavity. The intensity distribution of this electric field is not uniform, but has irregular distribution of "strong points" and "weak points". This unevenness is mainly due to the influence of physical phenomena such as reflection, refraction and interference when electromagnetic waves are transmitted in the microwave cavity, as well as changes in the dielectric properties of the material.

[0054] The magnitude of the electric field intensity directly affects the absorption and conversion efficiency of the material (wet waste) to microwave energy. The higher the electric field intensity, the stronger the absorption of microwave energy by the material, and the faster the heating speed. However, too high an electric field intensity may also cause local overheating of the material, or even burn or damage the material structure. Therefore, during the microwave drying process, it is necessary to reasonably control the distribution and magnitude of the electric field intensity to ensure that the material can be dried evenly and quickly, while avoiding problems such as overheating and burning.

[0055] In addition, the electric field strength is closely related to the physical properties of the material, such as moisture content and density. Materials with higher moisture content have a stronger ability to absorb microwave energy, so the electric field strength inside them will also increase accordingly. Materials with higher density may reflect and scatter microwaves, thus affecting the distribution and size of the electric field strength.

[0056] In some preferred embodiments, the electric field strength of the microwave field in the microwave barrel is determined based on the initial data, basic data and a first dielectric loss factor, including: determining a first absorption power based on the initial data and the basic data, wherein the first absorption power is used to indicate the power absorbed by the wet waste drying in the microwave barrel; when the initial data includes microwave frequency and a first volume, determining the electric field strength based on the first absorption power, microwave frequency, first volume and a first dielectric loss factor.

[0057] Optionally, the specific calculation method of the electric field strength is as follows:

[0058]

[0059] Among them, ε″ t is the first dielectric loss factor at time t (historical period), E rms,t is the electric field strength, P av,Δt is the first absorbed power, f is the microwave frequency, and V is the volume.

[0060] Optionally, taking the above-mentioned salt-containing waste liquid as an example, the microwave frequency of the magnetron is set to 2450MHz, and the mass of the material m t =4.5kg, first volume V0=4.5L, first dielectric loss factor ε″ 25 =12.44, the electric field strength is calculated as follows:

[0061]

[0062] In some preferred embodiments, the first absorption power is determined based on the initial data and the basic data, including: determining the time difference between the historical period and the target period; obtaining the specific heat capacity of the wet waste, the specific heat capacity of water and the thermal coefficient of water vaporization in the microwave barrel; determining the temperature difference based on the first temperature and the second temperature; when the initial data includes mass, the first absorption power is determined based on the time difference, the specific heat capacity of the wet waste, the specific heat capacity of water, the thermal coefficient of water vaporization, the temperature difference, the first humidity and the mass.

[0063] Optionally, the first absorbed power is calculated as follows:

[0064]

[0065] Among them, c pd is the specific heat capacity of wet waste, c pw is the specific heat capacity of water, Lw is the heat coefficient of water vaporization, ΔT is the temperature difference, Δt is the time difference, M t is the first humidity, m t For mass, it should be noted that the heat coefficient of water vaporization usually refers to the latent heat of vaporization of water, which indicates the amount of heat required to change a unit mass of water from liquid to gas at a certain temperature. At standard atmospheric pressure, the latent heat of vaporization of water is about 2260 kJ / kg (or 40.8 kJ / mol). It should be noted that the latent heat of vaporization is a process quantity, which indicates the amount of heat required for the transformation of water from liquid to gas, rather than a state quantity.

[0066] Optionally, taking the above-mentioned salt-containing waste liquid as an example, during the vaporization process of the salt-containing waste liquid, water evaporation needs to reach a temperature of one hundred degrees Celsius before vaporization occurs, but between the initial stage (historical period) and the target period, the maximum temperature reaches 34.3 degrees Celsius, and the water vaporization heat absorption accounts for a very small proportion, that is, the water vaporization part is approximately 0 in the calculation.

[0067] Optional, the mass of the material m t =4.5kg, time difference Δt=60s, specific heat capacity of wet waste c pd =4200J(kg*℃), temperature difference ΔT=9.3℃, That is, P av,1 =2929.5W.

[0068] Optional, based on P av,1 =2929.5W, the electric field strength can be obtained as follows:

[0069]

[0070] That is E rms ,1=620.06V / m.

[0071] Step S110, determining microwave absorption power based on the electric field strength and the second dielectric loss factor, wherein the microwave absorption power is used to indicate the power that can be absorbed by the wet waste in the microwave barrel;

[0072] In some preferred embodiments, determining the microwave absorption power based on the electric field strength and the second dielectric loss factor includes: obtaining the microwave absorption coefficient; when the initial data includes the microwave frequency and the basic data includes the second volume, determining the microwave absorption power based on the electric field strength, the second volume, the second dielectric loss factor and the microwave frequency.

[0073] Optional, microwave absorption coefficient is 0.556×10 -10 , the second volume is calculated as follows:

[0074] V t+Δt =πr 2 H t+Δt

[0075] Among them, V t+Δt is the second volume, r is the radius of the microwave barrel, H t+Δt is the height of the microwave barrel.

[0076] Optional, microwave absorption power The calculation method is as follows:

[0077]

[0078] Taking the above-mentioned salt-containing waste liquid as an example, the microwave frequency is 2450MHz, and the second dielectric loss factor ε″ 34.3 =9.77, E rms,1 =620.06V / m, V t+Δt =4.5L,

[0079] It should be noted that during the period from the historical period to the target period, the temperature rose from 25 degrees to 34.3 degrees, and the moisture in the wet waste in the microwave barrel did not achieve the vaporization effect, so V t =V t+Δt =4.5L.

[0080] Step S112, adjusting the magnetron power in the microwave barrel based on the microwave absorption power.

[0081] In some preferred embodiments, the magnetron power in the microwave barrel is adjusted based on the microwave absorption power, including: when the initial data includes the initial power corresponding to the magnetron, determining the magnetron efficiency based on the initial power and the first absorption power; determining the output power required by the magnetron based on the magnetron efficiency and the microwave absorption power; and adjusting the magnetron power in the microwave barrel based on the output power required by the magnetron.

[0082] Optionally, the magnetron power is calculated as follows:

[0083]

[0084] The efficiency of the magnetron includes heating efficiency and microwave conversion efficiency, η1 is the heating efficiency, and η2 is the microwave conversion efficiency.

[0085] Optionally, based on the magnetron power obtained above, the magnetron power in the current period is adjusted to 2358.0 W, so that the magnetron supply power in the current period is equal to the wet waste absorption power, thereby avoiding energy waste.

[0086] Through the above steps S102 to S112, the purpose of determining the microwave absorption power in the current period based on the first dielectric loss factor, the second dielectric loss factor and the electric field strength is achieved, thereby achieving the technical effect of adjusting the magnetron supply power and reducing energy loss in consideration of the change of microwave absorption power, thereby solving the technical problem that the magnetron supply power is greater than the wet waste absorption power due to the failure to consider the change of microwave absorption power in the related technology, resulting in energy waste. .

[0087] Example 2

[0088] Based on the above embodiments and optional embodiments, the present invention also proposes an optional implementation mode: Figure 2 is a flow chart of an optional adaptive microwave power control method in embodiment 2 of the present invention, such as Figure 2 As shown, the method includes:

[0089] Step S1, inputting the initial power P0 corresponding to the magnetron;

[0090] Step S2, maintaining the initial power P0 corresponding to the magnetron unchanged within a time period of Δt;

[0091] Step S3, obtaining a first temperature T of the wet waste by a temperature sensor t and the second temperature T t+Δt , obtain the first liquid level height H of wet waste through the liquid level meter t And the second liquid level height H t+Δt .

[0092] Step S4: The second humidity of the wet waste target period is M t+Δt =[m t ×M t -ρ(H t -H t+Δt )πr 2 ] / (m t -ρ(H t -H t+Δt )πr 2 ), where m t is the mass of wet waste, M t+Δt is the second humidity of wet waste, M t is the first humidity, H t is the first liquid level height, H t+Δt is the second liquid level height.

[0093] Step S5: within the time difference of Δt, the first absorption power P of the wet waste av,Δt (The first absorbed power is used to indicate the power absorbed by the wet waste drying in the microwave barrel) c pd is the specific heat capacity of wet waste, c pw is the specific heat capacity of water, Lw is the heat coefficient of water vaporization, ΔT is the temperature difference, Δt is the time difference, M t is the first humidity, m t For quality.

[0094] Step S6, electric field strength of microwave field ε″ t is the first dielectric loss factor of wet waste in the historical period. The electric field intensity E in the microwave field can also be calculated by the absorbed heat of wet waste. rms,t .

[0095] Step S7, the second dielectric loss factor ε″ of the wet waste at time t+Δt (target time) t+Δt =f(T t+Δt , M t+Δt ).

[0096] Step S8, during the time from t+Δt to t+2Δt, the microwave absorption power of the wet waste (the microwave absorption power is used to indicate the power that the wet waste in the microwave barrel can absorb) is Among them, the second volume V t+Δt =πr 2 H t+Δt , r is the radius of the wet waste drying barrel.

[0097] Step S9, during the time from t+Δt to t+2Δt, the output power of the magnetron is regulated according to the microwave absorption power of the wet waste. The power of the magnetron in the microwave barrel drying device is Among them, η1 is the heating efficiency and η2 is the microwave conversion efficiency.

[0098] Step S10: Based on the magnetron power obtained above, adaptively control the magnetron power.

[0099] Through the above steps S1 to S10, the microwave power can be adaptively controlled and established based on the energy required for drying the wet waste, thereby maximizing the microwave energy utilization efficiency and the drying rate of the wet waste.

[0100] Example 3

[0101] In this embodiment, an adaptive microwave power control device is also provided, which is used to implement the above embodiments and preferred implementation modes, and the descriptions that have been made will not be repeated. As used below, the terms "module" and "device" can implement a combination of software and / or hardware for a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0102] According to an embodiment of the present invention, there is also provided an embodiment of a device for implementing the above-mentioned adaptive microwave power control method. Figure 3 is a schematic diagram of the structure of an adaptive microwave power control device in Example 3 of the present invention, such as Figure 3 As shown, the control device includes: an acquisition module 301, a first loss factor module 302, a second loss factor module 303, a field strength determination module 304, a microwave absorption power module 305 and an adjustment module 306, wherein:

[0103] The acquisition module 301 is used to acquire the initial data in the microwave barrel in the historical period and the basic data in the microwave barrel in the target period, wherein the historical period is before the target period, the initial data at least includes the first temperature and the first humidity, and the basic data at least includes the second temperature and the second humidity;

[0104] A first loss factor module 302, connected to the acquisition module 301, is used to determine a first dielectric loss factor corresponding to a historical period based on initial data;

[0105] The second loss factor module 303 is connected to the first loss factor module 302 and is used to determine the second medium loss factor corresponding to the target time period based on the basic data;

[0106] A field strength determination module 304, connected to the second loss factor module 303, is used to determine the electric field strength of the microwave field in the microwave barrel based on the initial data, the basic data and the first dielectric loss factor, wherein the electric field strength of the microwave field is used to indicate the magnetic field control strength in the microwave barrel;

[0107] The microwave absorption power module 305 is connected to the field strength determination module 304 and is used to determine the microwave absorption power based on the electric field strength and the second dielectric loss factor, wherein the microwave absorption power is used to indicate the power that the wet waste in the microwave barrel can absorb;

[0108] The regulating module 306 is connected to the microwave absorption power module 305 and is used to regulate the magnetron power in the microwave barrel based on the microwave absorption power.

[0109] It should be noted that the above modules can be implemented by software or hardware. For example, for the latter, it can be implemented in the following ways: the above modules can be located in the same processor; or the above modules can be located in different processors in any combination.

[0110] It should be noted that the acquisition module 301, the first loss factor module 302, the second loss factor module 303, the field strength determination module 304, the microwave absorption power module 305 and the adjustment module 306 correspond to steps S102 to S112 in the embodiment, and the examples and application scenarios implemented by the above modules and the corresponding steps are the same, but are not limited to the contents disclosed in the above embodiments. It should be noted that the above modules can be run in a computer terminal as part of the device.

[0111] It should be noted that the optional or preferred implementation of this embodiment can refer to the relevant description in the embodiment, which will not be repeated here.

[0112] The above-mentioned adaptive microwave power control device may also include a processor and a memory. The above-mentioned acquisition module 301, the first loss factor module 302, the second loss factor module 303, the field strength determination module 304, the microwave absorption power module 305 and the adjustment module 306 are all stored in the memory as program modules, and the processor executes the above-mentioned program modules stored in the memory to realize the corresponding functions.

[0113] The processor includes a kernel, which retrieves the corresponding program module from the memory. The kernel may be one or more. The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. The memory includes at least one memory chip.

[0114] According to an embodiment of the present application, an embodiment of a non-volatile storage medium is also provided. Optionally, in this embodiment, the non-volatile storage medium includes a stored program, wherein when the program is running, the device where the non-volatile storage medium is located is controlled to execute any one of the above-mentioned adaptive microwave power control methods.

[0115] Optionally, in this embodiment, the non-volatile storage medium may be located in any computer terminal in a computer terminal group in a computer network, or in any mobile terminal in a mobile terminal group, and the non-volatile storage medium includes a stored program.

[0116] Optionally, when the program is running, the device where the non-volatile storage medium is located is controlled to perform the following functions: obtain initial data in the microwave barrel in a historical period, and basic data in the microwave barrel in a target period, wherein the historical period is before the target period, the initial data includes at least a first temperature and a first humidity, and the basic data includes at least a second temperature and a second humidity; based on the initial data, determine a first dielectric loss factor corresponding to the historical period; based on the basic data, determine a second dielectric loss factor corresponding to the target period; based on the initial data, the basic data and the first dielectric loss factor, determine the electric field strength of the microwave field in the microwave barrel, wherein the electric field strength of the microwave field is used to indicate the magnetron strength in the microwave barrel; based on the electric field strength and the second dielectric loss factor, determine the microwave absorption power, wherein the microwave absorption power is used to indicate the power that can be absorbed by the wet waste in the microwave barrel; based on the microwave absorption power, adjust the magnetron power in the microwave barrel.

[0117] According to an embodiment of the present application, an embodiment of a processor is also provided. Optionally, in this embodiment, the processor is used to run a program, wherein when the program is run, any one of the above-mentioned adaptive microwave power control methods is executed.

[0118] According to an embodiment of the present application, an embodiment of a computer program product is also provided. Optionally, in this embodiment, the computer program product includes a computer program, and when the computer program is executed by a processor, the computer program implements any one of the steps of the above-mentioned adaptive microwave power control method.

[0119] Optionally, the above-mentioned computer program product, when executed on a data processing device, is suitable for executing a program initialized with the following method steps: obtaining initial data in the microwave barrel in a historical period, and basic data in the microwave barrel in a target period, wherein the historical period is before the target period, the initial data includes at least a first temperature and a first humidity, and the basic data includes at least a second temperature and a second humidity; based on the initial data, determining a first dielectric loss factor corresponding to the historical period; based on the basic data, determining a second dielectric loss factor corresponding to the target period; based on the initial data, the basic data and the first dielectric loss factor, determining the electric field strength of the microwave field in the microwave barrel, wherein the electric field strength of the microwave field is used to indicate the magnetron strength in the microwave barrel; based on the electric field strength and the second dielectric loss factor, determining the microwave absorption power, wherein the microwave absorption power is used to indicate the power that can be absorbed by the wet waste in the microwave barrel; based on the microwave absorption power, adjusting the magnetron power in the microwave barrel.

[0120] An embodiment of the present invention provides an electronic device, which includes a processor, a memory, and a program stored in the memory and executable on the processor. When the processor executes the program, the following steps are implemented: obtaining initial data in a microwave barrel in a historical period and basic data in the microwave barrel in a target period, wherein the historical period is before the target period, the initial data includes at least a first temperature and a first humidity, and the basic data includes at least a second temperature and a second humidity; determining a first dielectric loss factor corresponding to the historical period based on the initial data; determining a second dielectric loss factor corresponding to the target period based on the basic data; determining an electric field strength of a microwave field in the microwave barrel based on the initial data, the basic data, and the first dielectric loss factor, wherein the electric field strength of the microwave field is used to indicate the magnetron strength in the microwave barrel; determining microwave absorption power based on the electric field strength and the second dielectric loss factor, wherein the microwave absorption power is used to indicate the power that can be absorbed by wet waste in the microwave barrel; and adjusting the magnetron power in the microwave barrel based on the microwave absorption power.

[0121] The above sequence of the embodiments of the present invention is for description only and does not represent the superiority or inferiority of the embodiments.

[0122] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0123] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the above modules can be a logical function division. There may be other division methods in actual implementation, such as multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, modules or indirect coupling or communication connection of modules, which can be electrical or other forms.

[0124] The modules described above as separate components may or may not be physically separated, and the components shown as modules may or may not be physical modules, that is, they may be located in one place or distributed on multiple modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the present embodiment.

[0125] In addition, each functional module in each embodiment of the present invention may be integrated into one processing module, or each module may exist physically separately, or two or more modules may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of software functional modules.

[0126] If the above-mentioned integrated module is implemented in the form of a software function module and sold or used as an independent product, it can be stored in a computer-readable non-volatile storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a non-volatile storage medium, including a number of instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the various embodiments of the present invention. The aforementioned non-volatile storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

[0127] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An adaptive microwave magnetron power control method, characterized in that: include: Acquire initial data in the microwave barrel during a historical period and basic data in the microwave barrel during a target period, wherein the historical period is before the target period, the initial data at least includes a first temperature and a first humidity, and the basic data at least includes a second temperature and a second humidity; Based on the initial data, determining a first dielectric loss factor corresponding to the historical period; Based on the basic data, determining a second dielectric loss factor corresponding to the target time period; Based on the initial data, the basic data and the first dielectric loss factor, determining the electric field strength of the microwave field in the microwave barrel, wherein the electric field strength of the microwave field is used to indicate the strength of the magnetic tube in the microwave barrel; Determining microwave absorption power based on the electric field strength and the second dielectric loss factor, wherein the microwave absorption power is used to indicate the power that can be absorbed by the wet waste in the microwave barrel; Based on the microwave absorption power, the magnetron power in the microwave barrel is adjusted.

2. The control method according to claim 1, characterized in that: The obtaining of initial data in the microwave barrel during the historical period and basic data in the microwave barrel during the target period, wherein the initial data at least includes a first temperature and a first humidity, and the basic data at least includes a second temperature and a second humidity, comprises: Obtaining a first liquid level height, a mass, a first volume, and a first temperature in the microwave barrel during the historical period; determining the first humidity based on the mass, the first volume, and the first liquid level; Acquire a second liquid level height and a second temperature in the microwave barrel during the target time period; Determine a difference between the second liquid level height and the first liquid level height as a liquid level difference; The second humidity is determined based on the liquid level difference, the first humidity, and the mass.

3. The control method according to claim 1, characterized in that: The determining, based on the initial data, a first dielectric loss factor corresponding to the historical period, and the determining, based on the basic data, a second dielectric loss factor corresponding to the target period, include: Get dielectric loss coefficient; Acquire a plurality of historical data before the historical period, wherein the plurality of historical data at least includes a plurality of third temperatures and a plurality of third humidities; Constructing a dielectric loss factor function based on the dielectric loss coefficient and the plurality of historical data; Determining the first dielectric loss factor based on the initial data and the dielectric loss factor function; The second dielectric loss factor is determined based on the basic data and the dielectric loss factor function.

4. The control method according to claims 1 to 3, characterized in that: Determining the electric field strength of the microwave field in the microwave barrel based on the initial data, the basic data, and the first dielectric loss factor includes: Based on the initial data and the basic data, determining a first absorbed power, wherein the first absorbed power is used to indicate the power absorbed by the wet waste in the microwave barrel for drying; In a case where the initial data includes microwave frequency and a first volume, the electric field strength is determined based on the first absorbed power, the microwave frequency, the first volume, and the first dielectric loss factor.

5. The control method according to claim 4, characterized in that: The determining the first absorbed power based on the initial data and the basic data includes: Determining a time difference between the historical period and the target period; Obtain the specific heat capacity of wet waste in the microwave barrel, the specific heat capacity of water, and the heat coefficient of water vaporization; determining a temperature difference based on the first temperature and the second temperature; In case the initial data includes mass, the first absorbed power is determined based on the time difference, the specific heat capacity of the wet waste, the specific heat capacity of water, the heat coefficient of water vaporization, the temperature difference, the first humidity, and the mass.

6. The control method according to claims 1 to 3, characterized in that: The step of determining microwave absorption power based on the electric field strength and the second dielectric loss factor comprises: Obtain microwave absorption coefficient; In a case where the initial data includes microwave frequency and the basic data includes a second volume, the microwave absorption power is determined based on the electric field intensity, the second volume, the second dielectric loss factor, and the microwave frequency.

7. The control method according to claim 4, characterized in that: The step of adjusting the magnetron power in the microwave barrel based on the microwave absorption power comprises: When the initial data includes an initial power corresponding to a magnetron, determining the efficiency of the magnetron based on the initial power and the first absorbed power; Determining the output power required by the magnetron based on the magnetron efficiency and the microwave absorption power; Based on the output power required by the magnetron, the power of the magnetron in the microwave barrel is adjusted.

8. An adaptive microwave magnetron power control device, characterized in that: include: An acquisition module, used to acquire initial data in the microwave barrel in a historical period and basic data in the microwave barrel in a target period, wherein the historical period is before the target period, the initial data includes at least a first temperature and a first humidity, and the basic data includes at least a second temperature and a second humidity; A first loss factor module, used to determine a first dielectric loss factor corresponding to the historical period based on the initial data; A second loss factor module, used to determine a second medium loss factor corresponding to the target time period based on the basic data; A field strength determination module, used to determine the electric field strength of the microwave field in the microwave barrel based on the initial data, the basic data and the first dielectric loss factor, wherein the electric field strength of the microwave field is used to indicate the strength of the magnetic tube in the microwave barrel; A microwave absorption power module, used to determine the microwave absorption power based on the electric field strength and the second dielectric loss factor, wherein the microwave absorption power is used to indicate the power that can be absorbed by the wet waste in the microwave barrel; The regulating module is used to regulate the magnetron power in the microwave barrel based on the microwave absorption power.

9. A non-volatile storage medium, characterized in that: The non-volatile storage medium stores a plurality of instructions, and the instructions are suitable for being loaded by a processor and executing an adaptive microwave magnetron power control method as described in any one of claims 1 to 7.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of an adaptive microwave magnetron power control method as described in any one of claims 1 to 7 are implemented.

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