A method, equipment, medium, and product for regulating the heating of grain piles.
By using intelligent temperature data processing and graded control methods, the problem of relying on manual experience for grain pile heating treatment has been solved, realizing automated and energy-saving grain pile heating management and ensuring the safety of grain reserves.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ACAD OF NAT FOOD & STRATEGIC RESERVES ADMINISTRATION
- Filing Date
- 2026-05-07
- Publication Date
- 2026-06-30
Smart Images
Figure CN122306265A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of grain storage technology, and in particular to a method, equipment, medium and product for regulating the heating of grain piles. Background Technology
[0002] To ensure national food security, my country has established a comprehensive grain reserve system. my country's grain reserves are characterized by long storage periods, large storage capacities, and wide geographical coverage; the storage period for rice and corn is generally four years. As an active substrate, grain grains are prone to overheating during long-term storage, leading to mold growth and deterioration of grain quality, threatening the safety and quality of stored grain. Therefore, if timely and effective intervention measures are lacking when grain piles overheat, the temperature at the overheated point will continue to rise, and the overheated area will expand, resulting in losses to the stored grain. Currently, handling overheated grain piles relies heavily on manual experience, sometimes involving digging and turning the grain, which consumes significant manpower and resources. Summary of the Invention
[0003] The purpose of this application is to provide a method, equipment, medium, and product for regulating the heating of grain piles, which can realize automated, intelligent judgment and graded regulation of grain pile heating.
[0004] To achieve the above objectives, this application provides the following solution: Firstly, this application provides a method for controlling the heating of grain piles, including: Obtain temperature data at several temperature points in the grain pile; Based on the temperature data, calculate the average temperature of each grain layer and the overall average temperature of the grain pile; The temperature value of each temperature point is compared with the average temperature of the grain layer where the temperature point is located. When the temperature value of the temperature point exceeds the preset threshold of the average temperature of the grain layer, the temperature point is determined to be the heating center point. When a heating center point appears in the grain pile, the heating area is calculated based on the temperature value and distance of the heating center point and its adjacent temperature points; When the overall average temperature is less than the preset temperature, the heating area is less than the preset area, and the number of heating center points does not exceed the preset number, single-pipe ventilation cooling is performed; when the overall average temperature is greater than or equal to the preset temperature, the ambient temperature is obtained, and it is determined whether the ambient temperature is lower than the overall average temperature by a preset temperature difference. If so, centrifugal fan ventilation cooling is performed; otherwise, supplementary cooling ventilation cooling is performed.
[0005] Optionally, the formula for calculating the heating area is: ; in, The heating area; This refers to the temperature value at the center of the heating element. This represents the temperature value of the first point along the positive horizontal direction of the coordinate axis on the horizontal plane where the heating center point is located. This represents the temperature value of the first point along the positive vertical direction of the horizontal coordinate axis at the heating center point. From the center of fever to The distance from the point where the temperature value is located; From the center of fever to The distance from the point where the temperature value is located.
[0006] Optionally, the formula for calculating the average temperature of each grain layer is: ; in, The average temperature of the grain layer; Temperature point in the grain pile temperature, The range is 1 to n， This represents the number of temperature points in the grain pile. The formula for calculating the overall average temperature of a grain pile is: ; in, The overall average temperature of the grain pile; For the grain layer in the grain pile average temperature The range is 1 to m , This refers to the number of grain layers in the grain pile.
[0007] Optionally, the single-pipe ventilation cooling step includes: A small centrifugal fan is used to extract air from the grain pile through a ventilation pipe; the ventilation pipe is inserted into the grain pile at a predetermined distance directly above the heating center point. Real-time monitoring of the temperature difference between the heating center point and the average temperature of the grain layer in which it is located; When the difference is less than the preset cooling difference, the single-pipe ventilation cooling step is stopped.
[0008] Optionally, the centrifugal fan ventilation and cooling step includes: A centrifugal fan is used to send cold air from the outside environment into a ventilation cage located at the bottom of the grain silo through a ventilation opening; the cold air enters the grain pile through the ventilation cage. Real-time monitoring of the temperature difference between the heating center point and the average temperature of the grain layer in which it is located; When the difference is less than the preset cooling difference, the centrifugal fan ventilation and cooling step is stopped.
[0009] Optionally, the cooling ventilation step includes: Obtain the relative humidity of the air in the grain pile; Calculate the dew point temperature of the air in the grain pile based on the temperature value of the heating center point and the relative humidity; The cold air generated by the refrigeration equipment is delivered through a ventilation pipe to a predetermined distance directly above the center of the heat generation point in the grain pile; The ventilation temperature is controlled to be the dew point temperature plus a preset dew point temperature difference; Real-time monitoring of the temperature difference between the heating center point and the average temperature of the grain layer in which it is located; When the difference is less than the preset cooling difference, the cooling and ventilation cooling step is stopped. The formula for calculating the dew point temperature is: In the formula: Let be the dew point temperature of the air in the grain pile; a and b are constants. This refers to the temperature value at the heat-generating center point in the grain pile. This refers to the relative humidity of the air inside the grain pile.
[0010] Optionally, the preset threshold is 5°C; The preset temperature is 15℃, the preset area is 1 square meter, the preset quantity is 3, and the preset temperature difference is 5℃.
[0011] Secondly, this application provides a computer device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the method for regulating the heating of a grain pile as described above.
[0012] Thirdly, this application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method for regulating the heating of a grain pile as described above.
[0013] Fourthly, this application provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the method for regulating the heating of a grain pile as described above.
[0014] According to the specific embodiments provided in this application, this application has the following technical effects: This application provides a method, equipment, medium, and product for controlling grain pile heating. By comparing the temperature value of a specific point with the average temperature of its surrounding grain layer and setting a preset threshold, this application can objectively and automatically identify the heating center point, avoiding the subjectivity and uncertainty of manual judgment. Based on the temperature values and distances of the heating center point and its adjacent points, this application calculates the heating area, providing a quantitative basis for selecting the appropriate treatment method, making the control decision more scientific and reasonable. Based on multiple conditions such as the overall average temperature of the grain pile, the heating area, the number of heating points, and the ambient temperature, this application automatically matches three different cooling methods (single-pipe ventilation cooling, centrifugal fan ventilation cooling, and supplemental cooling ventilation cooling). This tiered treatment strategy avoids a "one-size-fits-all" approach, prioritizing the use of natural cold sources while ensuring cooling effectiveness and reducing energy consumption. The entire control process is automatically executed based on temperature sensor data, eliminating the need for manual turning or digging of the grain, significantly reducing labor intensity and labor costs. In summary, the method provided in this application can promptly and effectively address grain pile heating problems, ensuring grain storage safety, and has advantages such as high intelligence, good energy efficiency, and ease of operation. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is an application environment diagram of a method for regulating the heating of grain piles according to an embodiment of this application; Figure 2 A flowchart illustrating a method for controlling heat generation in a grain pile, provided as an embodiment of this application; Figure 3 This is a schematic diagram of a single-pipe ventilation and cooling system provided in one embodiment of this application; Figure 4 A schematic diagram provided for one embodiment of this application; Figure 5 A schematic diagram provided for one embodiment of this application; Figure 6 This is a schematic diagram of the structure of a computer device provided in an embodiment of this application.
[0017] Attached reference numerals: Grain pile-1, Grain silo-2, Small centrifugal fan-3, First ventilation pipe-4, Ventilation pipe inlet-A, Fan outlet-B, Refrigeration equipment-5, Second ventilation pipe-6, Centrifugal fan-7; Ventilation inlet-8; Ventilation cage-9. Detailed Implementation
[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0019] After winter cooling and ventilation, the overall temperature of the grain pile is relatively low. With the arrival of summer, the overall temperature of the grain pile gradually rises. Due to impurity accumulation and uneven winter ventilation, localized heating can easily occur inside the grain pile. If not intervened in time, the heated area will spread to the surrounding areas, causing losses such as grain mold. This application addresses the heating of the grain pile at different stages using different control methods. The treatment of grain pile heating fully considers the overall temperature distribution within the grain pile and the external environment, safely and rationally utilizing the cooling energy of the grain pile or the natural environment, while preventing condensation caused by ventilation. Currently, large commercial grain silos are equipped with temperature sensors for daily monitoring of grain pile temperature. This application utilizes temperature data collected by temperature sensors in the grain pile for intelligent regulation of grain pile heating.
[0020] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0021] The method for controlling the heating of grain piles provided in this application embodiment can be applied to, for example... Figure 1 In the application environment shown, terminal 102 communicates with server 104 via a network. A data storage system can store the data that server 104 needs to process. The data storage system can be set up independently, integrated into server 104, or placed in the cloud or on another server.
[0022] The terminal 102 can be, but is not limited to, various desktop computers, laptops, smartphones, tablets, IoT devices, and portable wearable devices. IoT devices can include smart speakers, smart TVs, smart air conditioners, and smart in-vehicle devices. Portable wearable devices can include smartwatches, smart bracelets, and head-mounted devices. The server 104 can be implemented using a standalone server or a server cluster composed of multiple servers, or it can be a cloud server.
[0023] In one exemplary embodiment, such as Figure 2 As shown, a method for controlling the heat generation of a grain pile is provided. This method is executed by a computer device, specifically a terminal or server, or both. In this embodiment, the method is applied to... Figure 1Taking server 104 as an example, the explanation includes the following steps S1 to S5. Wherein: S1. Obtain temperature data at several temperature points in the grain pile.
[0024] S2. Based on the temperature data, calculate the average temperature of each grain layer and the overall average temperature of the grain pile.
[0025] S3. Compare the temperature value of each temperature point with the average temperature of the grain layer where the temperature point is located. When the temperature value of the temperature point exceeds the preset threshold of the average temperature of the grain layer, the temperature point is determined as the heating center point.
[0026] S4. When a heating center point appears in the grain pile, calculate the heating area based on the temperature value and distance of the heating center point and its adjacent temperature points.
[0027] S5. When the overall average temperature is less than the preset temperature, the heating area is less than the preset area, and the number of heating center points does not exceed the preset number, single-pipe ventilation cooling is performed; when the overall average temperature is greater than or equal to the preset temperature, the ambient temperature is obtained, and it is determined whether the ambient temperature is lower than the overall average temperature by a preset temperature difference. If so, centrifugal fan ventilation cooling is performed; otherwise, supplementary cooling ventilation cooling is performed.
[0028] Compared with the prior art, this embodiment has the following beneficial effects: (1) Realize the quantitative automatic determination of heat generation: By comparing the temperature value of the temperature point with the average temperature of the grain layer where it is located and setting a preset threshold, the heat generation center point can be identified objectively and automatically, avoiding the subjectivity and uncertainty of manual judgment.
[0029] (2) Accurate assessment of the heating range: The heating area is calculated based on the temperature value and distance of the heating center point and its adjacent temperature points, which provides a quantitative basis for the subsequent selection of treatment methods, making the control decision more scientific and reasonable.
[0030] (3) Graded and condition-specific intelligent control to improve processing efficiency: Based on multiple conditions such as the overall average temperature of the grain pile, the area of heat generation, the number of heat generation points, and the ambient temperature, three different cooling methods (single-pipe ventilation cooling, centrifugal fan ventilation cooling, and supplemental cooling ventilation cooling) are automatically matched. Single-pipe ventilation is used for small-scale localized heat generation, centrifugal fans are used to introduce cold air from the outside in situations where ambient cold sources can be utilized, and active supplemental cooling ventilation is used in other situations. This graded treatment strategy avoids a "one-size-fits-all" approach and can prioritize the use of natural cold sources while ensuring the cooling effect, thereby reducing energy consumption.
[0031] (4) Achieve closed-loop control and controllable cooling effect: By monitoring the difference between the heating center point and the average temperature of the grain layer in real time, and automatically stopping ventilation when the conditions are met, a complete closed-loop control is formed, avoiding excessive cooling or ineffective ventilation.
[0032] (5) Save manpower and resources: The entire control process is automatically executed based on temperature sensor data, eliminating the need for manual turning or digging of grain, which greatly reduces labor intensity and labor costs.
[0033] In another exemplary embodiment of this application, the process of determining and calculating the heating center point and heating area of the grain pile in steps S2-S3 above includes: When the temperature at a certain point in the grain pile exceeds the average temperature of the grain layer by more than 5°C, the grain layer is determined to be a heating zone, and the temperature point is designated as the heating center. The heating area is then calculated. .
[0034] ; in, The heating area is expressed in square meters (m²). 2 ; The temperature value at the heating center point is calculated using dimensionless measurement. The temperature value is the first point along the positive horizontal direction on the horizontal coordinate axis (north at the top, south at the bottom) where the heating center point is located, in °C. The temperature value of the first point along the positive vertical direction of the horizontal coordinate axis at the heating center is calculated using dimensionless measurement. From the center of fever to The distance between the points where the temperature value is located, in meters; From the center of fever to The distance between the points where the temperature value is located, in meters.
[0035] The formula for calculating the average temperature of each grain layer is: ; in, The average temperature of the grain layer is expressed in °C. Temperature point in the grain layer Temperature, in °C. The range is 1 to n， This represents the number of temperature points in the grain layer. The formula for calculating the overall average temperature of a grain pile is: ; in, The overall average temperature of the grain pile, in °C; For the grain layer in the grain pile The average temperature, in °C. The range is 1 to m , This refers to the number of grain layers in the grain pile.
[0036] In another exemplary embodiment of this application, step S5 above, the single-pipe ventilation cooling step includes: A small centrifugal fan is used to extract air from the grain pile through a ventilation pipe; the ventilation pipe is inserted into the grain pile at a predetermined distance directly above the heating center point. Real-time monitoring of the temperature difference between the heating center point and the average temperature of the grain layer in which it is located; When the difference is less than the preset cooling difference, the single-pipe ventilation cooling step is stopped.
[0037] In another exemplary embodiment of this application, step S5 above, the centrifugal fan ventilation and cooling step includes: Using centrifugal fan 7, cold air from the outside environment is sent through the ventilation opening into the ventilation cage 9 located at the bottom of the grain silo 2; the cold air enters the grain pile 1 through the ventilation cage 9. Real-time monitoring of the temperature difference between the heating center point and the average temperature of the grain layer in which it is located; When the difference is less than the preset cooling difference, the centrifugal fan ventilation and cooling step is stopped.
[0038] In another exemplary embodiment of this application, step S5 above, the step of supplemental cooling ventilation includes: Obtain the relative humidity of the air in the grain pile; Calculate the dew point temperature of the air in the grain pile based on the temperature value of the heating center point and the relative humidity; The cold air generated by the refrigeration equipment is delivered through a ventilation pipe to a predetermined distance directly above the center of the heat generation point in the grain pile; The ventilation temperature is controlled to be the dew point temperature plus a preset dew point temperature difference; Real-time monitoring of the temperature difference between the heating center point and the average temperature of the grain layer in which it is located; When the difference is less than the preset cooling difference, the cooling and ventilation cooling step is stopped.
[0039] In another exemplary embodiment of this application, steps S4-S5 described above can be implemented in the following manner: When hot spots appear in the grain pile, the overall average temperature of the grain pile... Temperature less than 15℃, heating area S less than 1m² 2 When the number of heat-generating centers is ≤3, the grain pile should be cooled using a single-pipe ventilation cooling method, such as... Figure 3As shown. The ventilation pipe is inserted into the grain pile 1 at a distance of 0.5 m directly above the heating center. A small centrifugal fan 3 is used to transport air from the grain pile 1 through the ventilation pipe inlet A of the first ventilation pipe 4 to the fan outlet B of the small centrifugal fan 3. When... -T 层 When the temperature drops below 1, cooling and ventilation cease. The preferred small centrifugal fan 3 is a 1.1 kW centrifugal fan.
[0040] When hot spots appear in the grain pile, the overall average temperature of the grain pile is... When the temperature is above 15℃, the temperature is relative to the ambient temperature. When comparing, Compare When the temperature drops by 5°C, centrifugal fan 7 is used for cooling and ventilation. Figure 4 As shown, the centrifugal fan 7 draws cold air from the outside environment into the ventilation cage 9 through the ventilation inlet 8, and then the cold air enters the grain pile 1 through the ventilation cage 9, thereby reducing the overall temperature of the grain pile 1. When the T layer is less than 1, cooling and ventilation will end. The centrifugal fan 7 is preferably a model with a power of 11 kW.
[0041] When hot spots appear in the grain pile and none of the above conditions are met, supplemental cooling ventilation should be used. The ventilation method is as follows: Figure 5 As shown, refrigeration equipment 5 is used, and the refrigeration is delivered to a position 0.5 m directly above the heating point of the grain pile via the second ventilation pipe 6. The ventilation temperature is ( +1)℃, of which The dew point temperature of the air in the grain pile, when When the T layer is less than 1, cooling and ventilation are terminated. A grain cooler with a cooling capacity of 55 kW is preferred, and the centrifugal fan of this grain cooler is preferably 5.5 kW.
[0042] The formula for calculating the dew point temperature is: In the formula: , where is the dew point temperature of the air in the grain pile, in °C; a and b are constants, a = 17.27 and b = 237.7; This refers to the temperature value at the heat-generating center point in the grain pile. The relative humidity of the air in the grain pile is expressed in %.
[0043] To address the problems of current methods for grain pile overheating, such as turning the grain and single-pipe ventilation, which rely on manual experience and are prone to delays, this application provides corresponding solutions for different grain pile overheating scenarios. It proposes for the first time a single-point supplemental cooling ventilation system for overheated grain piles, shortening the time required to address the overheating points, avoiding manual turning, and saving manpower and resources. This application also provides an intelligent control method for timely cooling of grain piles by utilizing internal cooling capacity or ambient air to solve the overheating problem.
[0044] In one exemplary embodiment, a computer device is provided, which may be a server or a terminal, and its internal structure diagram may be as follows. Figure 6 As shown, this computer device includes a processor, memory, input / output (I / O) interfaces, and a communication interface. The processor, memory, and I / O interfaces are connected via a system bus, and the communication interface is also connected to the system bus via the I / O interfaces. The processor provides computational and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system, computer programs, and a database. The internal memory provides the environment for the operating system and computer programs stored in the non-volatile storage media to run. The I / O interfaces are used for exchanging information between the processor and external devices. The communication interface is used for communicating with external terminals via a network connection. When the computer program is executed by the processor, it implements a method for controlling the heating of a grain pile.
[0045] Those skilled in the art will understand that Figure 6 The structures shown are merely block diagrams of some structures related to the present application and do not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than shown in the figures, or combine certain components, or have different component arrangements. In an exemplary embodiment, a computer device is provided, including a memory and a processor. The memory stores a computer program, and the processor executes the computer program to implement the steps in the above-described method embodiments.
[0046] In one exemplary embodiment, a computer-readable storage medium is provided storing a computer program that, when executed by a processor, implements the steps in the above-described method embodiments.
[0047] In one exemplary embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps in the above-described method embodiments.
[0048] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties. Moreover, the collection, use and processing of the relevant data are carried out in compliance with the relevant data protection laws and policies of the country where the location is located, and with the authorization granted by the owner of the corresponding device.
[0049] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments described above. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM).
[0050] The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.
[0051] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0052] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.
Claims
1. A method for regulating the heating of grain piles, characterized in that, include: Obtain temperature data at several temperature points in the grain pile; Based on the temperature data, calculate the average temperature of each grain layer and the overall average temperature of the grain pile; The temperature value of each temperature point is compared with the average temperature of the grain layer where the temperature point is located. When the temperature value of the temperature point exceeds the preset threshold of the average temperature of the grain layer, the temperature point is determined to be the heating center point. When a heating center point appears in the grain pile, the heating area is calculated based on the temperature value and distance of the heating center point and its adjacent temperature points; When the overall average temperature is less than the preset temperature, the heating area is less than the preset area, and the number of heating center points does not exceed the preset number, single-pipe ventilation cooling is performed; when the overall average temperature is greater than or equal to the preset temperature, the ambient temperature is obtained, and it is determined whether the ambient temperature is lower than the overall average temperature by a preset temperature difference. If so, centrifugal fan ventilation cooling is performed; otherwise, supplementary cooling ventilation cooling is performed.
2. The method for regulating the heating of grain piles according to claim 1, characterized in that, The formula for calculating the heating area is: ； in, The heating area; This refers to the temperature value at the center of the heating element. This represents the temperature value of the first point along the positive horizontal direction of the coordinate axis on the horizontal plane where the heating center point is located. This represents the temperature value of the first point along the positive vertical direction of the horizontal coordinate axis at the heating center point. From the center of fever to The distance from the point where the temperature value is located; From the center of fever to The distance from the point where the temperature value is located.
3. The method for regulating the heating of grain piles according to claim 1, characterized in that, The formula for calculating the average temperature of each grain layer is: ； in, The average temperature of the grain layer; Temperature point in the grain pile temperature, The range is 1 to n， This represents the number of temperature points in the grain pile. The formula for calculating the overall average temperature of a grain pile is: ； in, The overall average temperature of the grain pile; For the grain layer in the grain pile average temperature The range is 1 to m , This refers to the number of grain layers in the grain pile.
4. The method for regulating the heating of grain piles according to claim 1, characterized in that, The steps of the single-pipe ventilation and cooling method include: A small centrifugal fan is used to extract air from the grain pile through a ventilation pipe; the ventilation pipe is inserted into the grain pile at a predetermined distance directly above the heating center point. Real-time monitoring of the temperature difference between the heating center point and the average temperature of the grain layer in which it is located; When the difference is less than the preset cooling difference, the single-pipe ventilation cooling step is stopped.
5. The method for regulating the heating of grain piles according to claim 1, characterized in that, The centrifugal fan ventilation and cooling steps include: A centrifugal fan is used to send cold air from the outside environment into a ventilation cage located at the bottom of the grain silo through a ventilation opening; the cold air enters the grain pile through the ventilation cage. Real-time monitoring of the temperature difference between the heating center point and the average temperature of the grain layer in which it is located; When the difference is less than the preset cooling difference, the centrifugal fan ventilation and cooling step is stopped.
6. The method for regulating the heating of grain piles according to claim 1, characterized in that, The cooling and ventilation steps include: Obtain the relative humidity of the air in the grain pile; Calculate the dew point temperature of the air in the grain pile based on the temperature value of the heating center point and the relative humidity; The cold air generated by the refrigeration equipment is delivered through a ventilation pipe to a predetermined distance directly above the center of the heat generation point in the grain pile; The ventilation temperature is controlled to be the dew point temperature plus a preset dew point temperature difference; Real-time monitoring of the temperature difference between the heating center point and the average temperature of the grain layer in which it is located; When the difference is less than the preset cooling difference, the cooling and ventilation cooling step is stopped. The formula for calculating the dew point temperature is: In the formula: Let be the dew point temperature of the air in the grain pile; a and b are constants. This refers to the temperature value at the heat-generating center point in the grain pile. This refers to the relative humidity of the air inside the grain pile.
7. The method for regulating the heating of grain piles according to claim 1, characterized in that, The preset threshold is 5℃; The preset temperature is 15℃, the preset area is 1 square meter, the preset quantity is 3, and the preset temperature difference is 5℃.
8. A computer device, comprising: A memory, a processor, and a computer program stored in the memory and capable of running on the processor, characterized in that the processor executes the computer program to implement the method for regulating the heating of a grain pile as described in any one of claims 1-7.
9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the computer program implements the method for regulating the heating of a grain pile as described in any one of claims 1-7.
10. A computer program product, comprising a computer program, characterized in that, When executed by a processor, the computer program implements the method for regulating the heating of a grain pile as described in any one of claims 1-7.