High-temperature graphitization furnace heating method and system

Abstract

The invention relates to a high-temperature graphitization furnace heating method and system, and belongs to the field of carbon fiber material processing equipment.The method comprises the steps that the detection temperature of a preset detection position in a furnace cavity is obtained in real time till product processing is completed; when the detection temperature is obtained every time, calculating the difference temperature, and judging whether a first detection position with the difference temperature greater than 0 and a second detection position with the difference temperature equal to 0 exist or not; if the first detection position exists, determining initial temperature rise power based on a preset corresponding relation table I, and controlling the temperature of the first detection position in the furnace chamber to rise to a target temperature; and if the second detection position exists, stopping heating the second detection position. The method has the effect of reducing the power consumption in the use process of the graphitization furnace.

Description

Technical Field

[0001] The present application relates to the field of carbon fiber material processing, and in particular to a high-temperature graphitization furnace heating method and system. Background Art

[0002] Graphitization furnace is mainly used for sintering and graphitization of carbon materials, graphitization of PI films, graphitization of thermal conductive materials, sintering of carbon fiber ropes, sintering and graphitization of carbon fiber filaments, purification of graphite materials, carbon insulation materials and carbon-carbon composite materials, and other high-temperature treatments of materials that can be graphitized under carbon environments. Its operating temperature is as high as 3000℃. It has high production efficiency and saves energy and electricity.

[0003] The graphitization furnace follows the high energy consumption principle of fast rise at low temperature and slow rise at high temperature during heating, and monitors the temperature in the graphitization furnace in real time to adjust the power and ensure the temperature of the product when heated in the graphitization furnace.

[0004] The temperature inside the graphitization furnace is generally the air temperature of its internal chamber. When the air temperature reaches the required temperature, the product temperature often has not reached the specified processing temperature. Under monitoring, the temperature rise will often stop. After the product and the air have exchanged heat, the product temperature and the air temperature are averaged. At this time, the air temperature drops again. The temperature monitoring determines that the temperature needs to be raised. The heating electrode needs to be started again, resulting in increased power consumption. Alternatively, in order to ensure that the product temperature reaches the specified processing temperature, the air temperature in the chamber needs to be maintained for a period of time after reaching the required temperature to complete the product heating. However, in order to ensure that the product temperature meets the standard, the air temperature is often maintained for a long time, resulting in high power consumption, so it needs to be improved. Summary of the invention

[0005] In order to solve the technical problem of high power consumption during the use of a graphitization furnace, the present application provides a high-temperature graphitization furnace heating method and system.

[0006] In the first aspect, the present application provides a high-temperature graphitization furnace heating method, which adopts the following technical solution:

[0007] A high-temperature graphitization furnace heating method, comprising:

[0008] Real-time acquisition of the detection temperature of the preset detection positions in the furnace cavity until the product is processed; wherein the detection positions at least include the temperature detection position inside the furnace cavity and the temperature detection position on the surface of the product;

[0009] Whenever the detection temperature is obtained, the differential temperature is calculated to determine whether there is a first detection position where the differential temperature is greater than 0 and a second detection position where the differential temperature is equal to 0; wherein the differential temperature is the difference between the target temperature and the detection temperature;

[0010] If there is a first detection position, the initial heating power is determined based on a preset corresponding relationship table 1, and the first detection position in the furnace cavity is controlled to heat up to the target temperature; wherein the corresponding relationship table 1 is at least used to store the relationship between the difference temperature and the initial heating power;

[0011] If there is a second detection position, the temperature rise at the second detection position is stopped.

[0012] By adopting the above technical solution, the graphitization furnace heating system performs refined temperature control operations on each product to be processed, reduces unnecessary power consumption during the use of the graphitization furnace while ensuring the product processing temperature, and performs customized data-supported temperature control operations on the detection position based on the detection temperature, thereby improving the cost-effectiveness of energy use.

[0013] Optionally, if there is a first detection position, determining an initial heating power based on a preset corresponding relationship table, and controlling the first detection position in the furnace cavity to heat up to a target temperature includes:

[0014] If the first detection position is located in the upper half of the furnace cavity, the initial heating power is determined according to a preset corresponding relationship table 1;

[0015] If the first detection position is located in the lower half of the furnace cavity, the upshift power is determined according to the initial heating power corresponding to the preset corresponding relationship table 1, and the upshift power is used as the initial heating power.

[0016] By adopting the above technical solution, it is determined that the first detection position is located at a specific position in the furnace cavity, and according to the basic principle of hot air upward and cold air downward, the upshift power at different positions is achieved to improve the heating efficiency and heating effect.

[0017] Optionally, the corresponding relationship table 1 also includes the heating time corresponding to the initial heating power corresponding to each differential temperature;

[0018] If the first detection position exists, the initial heating power is determined based on the preset corresponding relationship table 1, and the first detection position in the furnace cavity is controlled to heat up to the target temperature, including:

[0019] If there is a first detection position, the initial heating power, heating time and heating period are determined based on the preset corresponding relationship table 1, the first detection position in the furnace cavity is controlled to heat up during the heating period, and an end signal is sent when the heating ends;

[0020] The real-time acquisition of the detection temperature of the preset detection position in the furnace cavity until the product is processed includes:

[0021] When a start signal is received, the detection temperatures of all preset detection positions are obtained;

[0022] When an end signal is obtained, obtaining a detection temperature of a detection position corresponding to the end signal;

[0023] When product processing is completed, stop obtaining the detection temperatures of all preset detection positions.

[0024] By adopting the above technical solution, each time the heating is completed, the temperature of the first detection position is measured to determine whether the heating needs to be continued to achieve the continuity of the heating; to ensure the stability of the heating of the product during processing, thereby improving the processing effect of the product.

[0025] Optionally, the detection positions are several furnace cavity internal temperature detection positions and several product surface temperature detection positions; and the upper half and the lower half of the furnace cavity respectively correspond to more than one furnace cavity internal temperature detection position, and the upper half and the lower half of the furnace cavity respectively correspond to more than one product surface temperature detection position;

[0026] If the first detection position exists, the initial heating power, heating time and heating period are determined based on the preset corresponding relationship table 1, and the first detection position in the furnace cavity is controlled to heat up during the heating period, including:

[0027] If the first detection positions exist, determining the number of the first detection positions in the upper half of the furnace cavity and the number of the first detection positions in the lower half of the furnace cavity;

[0028] If the number of first detection positions in the upper half of the furnace cavity is greater than the number of first detection positions in the lower half of the furnace cavity, the initial heating power of the first detection position in the upper half of the furnace cavity is determined according to the preset corresponding relationship table 1; and when there is a first detection position in the lower half of the furnace cavity, the upshift power of the first detection position in the lower half of the furnace cavity is determined according to the initial heating power corresponding to the preset corresponding relationship table 1, and the upshift power is used as the initial heating power of the first detection position in the lower half of the furnace cavity;

[0029] If the number of first detection positions in the upper half of the furnace cavity is less than the number of first detection positions in the lower half of the furnace cavity, the initial heating power of all first detection positions in the furnace cavity is determined according to the preset corresponding relationship table 1;

[0030] Based on the determined initial powers of all first detection positions and the preset corresponding relationship table 1, the heating time and heating period are determined, and the temperature of each first detection position in the furnace cavity is controlled to rise during the corresponding heating period.

[0031] By adopting the above technical solution, if there are multiple first detection positions, in order to reduce the mutual influence of adjacent first detection positions when the multiple positions are heated up at the same time, the heating effect of each first detection position is guaranteed.

[0032] Optionally, determining the upshift power at the first detection position of the lower half of the furnace cavity according to the initial heating power corresponding to the preset correspondence table 1, and using the upshift power as the initial heating power at the first detection position of the lower half of the furnace cavity, comprises:

[0033] Calculate the ratio of the number of first detection positions in the lower half of the furnace cavity to the number of first detection positions in the furnace cavity as a, calculate the heating time T'=T*a, and determine the heating period, wherein the heating time of the first detection position in the lower half of the furnace cavity is T;

[0034] During the heating period, the first detection position in the lower half of the furnace cavity is controlled to heat up.

[0035] Optionally, the calculating the heating time T'=T*a and determining the heating period includes:

[0036] If a is greater than the specified ratio, then T'=T*a;

[0037] If a is less than or equal to the specified ratio, then T'=T*specified ratio;

[0038] The heating period is determined according to T'.

[0039] By adopting the above technical solution, after the first detection position shifts up, the heating power is high. In order to reduce the over-heating situation, the heating time is adjusted according to the proportion of the first detection position that needs to shift up, so as to balance the over-heating situation.

[0040] Optionally, when the end signal is obtained, obtaining the detection temperature of the detection position corresponding to the end signal includes:

[0041] When the end signal is obtained, the detection temperature of the detection position corresponding to the end signal is obtained, and the difference calculation is performed based on the detection temperature and the theoretical temperature in the corresponding relationship table 1, wherein the theoretical temperature is the temperature that should be reached after the heating time in the corresponding relationship table 1 ends;

[0042] If the difference is greater than the specified difference, the corresponding advance time is determined based on the preset correspondence table 2, and the heating time is determined, and the corresponding heating time in the correspondence table 1 is replaced with the determined heating time, wherein the correspondence table 2 at least includes the relationship between the specified difference and the advance time, and the heating time = the original heating time - the advance time.

[0043] By adopting the above technical solution, after each first detection position is heated up, the difference of the detected temperature detected again is calculated, and the subsequent heating scheme of the detection position is calibrated to ensure the final stability of the furnace chamber.

[0044] Optionally, the real-time acquisition of the detection temperature of a preset detection position in the furnace cavity until the product is processed includes:

[0045] Acquire detection temperatures of preset detection positions based on preset high temperature sensors and low temperature sensors respectively;

[0046] The method further comprises:

[0047] Whenever the detected temperature is obtained, the detected temperature is compared with the preset standard temperature;

[0048] If the detected temperature is greater than the standard temperature, the acquisition source of the detected temperature is determined to be a high temperature sensor;

[0049] If the detected temperature is lower than the standard temperature, the acquisition source of the detected temperature is determined to be a low temperature sensor.

[0050] Optionally, the method further includes:

[0051] The temperature rise log corresponding to each preset detection position is stored in real time until the processing of the product is completed, wherein the temperature rise log corresponding to the target detection position includes the acquisition time whenever the detection temperature of the target detection position is acquired, and the judgment result of judging whether the target detection position is the first detection position or the second detection position at the corresponding acquisition time, and the target detection position is any detection position;

[0052] The real-time acquisition of the detection temperature of the preset detection position in the furnace cavity until the product is processed includes:

[0053] Determine from a preset temperature rise experience table whether there is a temperature rise log corresponding to the current product to be processed, wherein the temperature rise experience table at least includes the relationship between the type of product to be processed and the temperature rise log;

[0054] If it exists, the temperature control operation is performed according to the judgment results corresponding to the different acquisition times in the corresponding temperature rise log; the temperature control operation includes the temperature rise operation and the temperature rise stop operation;

[0055] If it does not exist, the detection temperature of the preset detection position is obtained in real time until the product is processed.

[0056] In the second aspect, the present application provides a high-temperature graphitization furnace heating system, which adopts the following technical solution:

[0057] Temperature detection module: real-time acquisition of the detection temperature of the preset detection position in the furnace cavity until the product is processed; wherein the detection position at least includes the temperature detection point inside the furnace cavity and the temperature detection point on the surface of the product;

[0058] Real-time temperature control module: Whenever the detected temperature is obtained, the differential temperature is calculated to determine whether there is a first detection position where the differential temperature is greater than 0 and a second detection position where the differential temperature is equal to 0; the differential temperature is the difference between the target temperature and the detected temperature;

[0059] If there is a first detection position, the initial heating power is determined based on a preset corresponding relationship table 1, and the first detection position in the furnace cavity is controlled to heat up to the target temperature; wherein the corresponding relationship table 1 is at least used to store the relationship between the difference temperature and the initial heating power;

[0060] If there is a second detection position, the temperature rise at the second detection position is stopped.

[0061] In summary, the present application includes at least one of the following beneficial technical effects:

[0062] In the present application, the graphitization furnace heating system performs refined temperature control operations on each product to be processed, and reduces unnecessary power consumption during the use of the graphitization furnace while ensuring the product processing temperature. Whenever a detection position obtains a detection temperature, a temperature control operation supported by customized data is performed on the detection position according to the detection temperature, thereby improving the cost-effectiveness of energy use;

[0063] Furthermore, each time the heating is completed, the temperature of the first detection position is measured to determine whether the heating needs to be continued to achieve the continuity of the heating; to ensure the stability of the heating of the product during processing, thereby improving the processing effect of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0065] Figure 1 It is a schematic flow chart of a high-temperature graphitization furnace heating method according to an embodiment of the present application.

[0066] Figure 2 It is a structural block diagram of a high temperature graphitization furnace heating system according to an embodiment of the present application.

[0067] Description of reference numerals: 101, temperature detection module; 201, real-time temperature control module; 301, product processing and storage module. DETAILED DESCRIPTION

[0068] The following is combined with Figure 1-2 This application is described in further detail.

[0069] The present application embodiment discloses a high temperature graphitization furnace heating method. Figure 1 The high-temperature graphitization furnace heating method is used to reduce the power consumption of the graphitization furnace during use, so that when the graphitization furnace is processing the product, it can reduce the unnecessary time of maintaining the high temperature while ensuring the product processing temperature; the execution body of the high-temperature graphitization furnace heating method is the graphitization furnace heating system; the following will be specifically combined with Figure 1 , the specific process of high temperature graphitization furnace heating method is explained.

[0070] S101, acquiring the detection temperature of a preset detection position in the furnace cavity in real time until the product is processed; wherein the detection position at least includes a temperature detection position inside the furnace cavity and a temperature detection position on the surface of the product;

[0071] In implementation, a plurality of temperature sensors are installed in the furnace cavity. The graphitization furnace heating system obtains the detection temperatures of a plurality of detection positions in the furnace cavity through the temperature sensors at the plurality of detection positions. A plurality of furnace cavity internal temperature detection positions and a plurality of product surface temperature detection positions are arranged in the furnace cavity. Specifically, the detection temperature detected at the furnace cavity internal temperature detection position is the air temperature in the furnace cavity, and the detection temperature detected at the product surface temperature detection position is the temperature of the product surface wall.

[0072] The graphitization furnace is also equipped with a temperature control system used in conjunction with the detection position. The corresponding relationship between the detection position and the temperature control system is pre-stored in the graphitization furnace heating system; the temperature control system includes a temperature control meter, a PLC controller, a power regulator, a transformer and a heating electrode, and the heating electrode is installed in the furnace cavity; each detection position corresponds to a temperature control meter, and the graphitization furnace heating system sends the received detection temperature to the temperature control meter, which performs PID calculations according to the target temperature and passes the output results to the PLC controller, which controls the power regulator to adjust the transformer and finally controls the heating electrode to heat the detection position. By obtaining the detection temperature of different detection positions in real time, the graphitization furnace can ensure the processing temperature of the product at a lower energy consumption until the product is processed.

[0073] S102, whenever the detection temperature is obtained, the differential temperature is calculated to determine whether there is a first detection position where the differential temperature is greater than 0 and a second detection position where the differential temperature is equal to 0; wherein the differential temperature is the difference between the target temperature and the detection temperature;

[0074] S1021, if the first detection position exists, determine the initial heating power based on a preset corresponding relationship table 1, and control the first detection position in the furnace cavity to heat up to the target temperature; wherein the corresponding relationship table 1 is at least used to store the relationship between the differential temperature and the initial heating power;

[0075] If there is a second detection position, the temperature rise at the second detection position is stopped.

[0076] During implementation, after the graphitization furnace heating system obtains the detection temperature of the detection position, when performing calculations on the temperature control table, the differential temperature between the obtained detection temperature and the target temperature is calculated based on the target temperature, and the differential temperature is expressed in the form of a numerical difference between the target temperature and the detection temperature, wherein the target temperature is the heating temperature required for product processing; the graphitization heating system analyzes the differential temperature to determine whether there is a first detection position where the differential temperature is greater than 0 and a second detection position where the differential temperature is equal to 0.

[0077] The graphitization furnace heating system pre-stores a corresponding relationship table 1 of the relationship between the differential temperature, the initial heating power and the heating time. If there is a first detection position, the initial heating power is determined based on the preset corresponding relationship table 1. Specifically, the differential temperature in the corresponding relationship table 1 is a plurality of continuous range values, each range value corresponds to a level of heating power, and each level of heating power corresponds to a corresponding heating time. For example, the differential temperature range in the corresponding relationship table 1 is 0-50°C. When the temperature sensor transmits the detection temperature of the first detection position of the graphitization furnace heating system, the graphitization heating system calculates that the target differential temperature of the detection temperature is 31°C, and the differential temperature falls within 0-50°C in the corresponding relationship table 1. At this time, the graphitization furnace heating system uses the heating power corresponding to 0-50°C in the corresponding relationship table 1 as the initial heating power of the first detection position, thereby controlling the first detection position in the furnace cavity to heat up to the target temperature.

[0078] If there is a second detection position, the graphitization furnace heating system controls the second detection position to stop heating; at the same time, the temperature of the detection position is detected regularly to re-determine whether the detection position is the first detection position or the second detection position. In this embodiment, the detection time interval for the second detection position is once every 30 minutes.

[0079] Optionally, the S1021 further includes:

[0080] If the first detection position is located in the upper half of the furnace cavity, the initial heating power is determined according to a preset corresponding relationship table;

[0081] If the first detection position is located in the lower half of the furnace cavity, the upshift power is determined according to the corresponding initial heating power in the preset corresponding relationship table, and the upshift power is used as the initial heating power.

[0082] In implementation, when the graphitization furnace heating system receives the detection temperature sent by the temperature sensor and determines it as the first detection position, the graphitization furnace heating system determines whether the first detection position is in the upper half or the lower half of the furnace cavity according to the position of the temperature sensor that sends the detection temperature of the first detection position. Specifically, the upper half and the lower half of the furnace cavity use the midpoint position in the furnace cavity height direction as the dividing point. The upper half of the furnace cavity is above the midpoint in the furnace cavity height direction, and the lower half of the furnace cavity is below the midpoint in the furnace cavity height direction.

[0083] If the graphitization furnace heating system determines that the first detection position is located in the upper half of the furnace chamber, the differential temperature is calculated according to the detection temperature of the first detection position, and the heating power corresponding to the differential temperature of the first detection position is determined according to the correspondence table 1, and the determined corresponding heating power is used as the initial heating power of the first detection position, thereby controlling the first detection position in the furnace chamber to heat up to the target temperature with the initial heating power.

[0084] If the graphitization furnace heating system determines that the first detection position is located in the lower half of the furnace chamber, the differential temperature is calculated based on the detection temperature of the first detection position, and the heating power corresponding to the differential temperature is determined according to the corresponding relationship table 1, and the up-shift power is determined when considering that the first detection position is located in the lower half of the furnace chamber. In this implementation scheme, the up-shift power is a heating power that is one level higher than the original heating power. If it is calculated that the differential temperature of the first detection position is 31°C, the differential temperature falls within the range of 0-50°C in the corresponding relationship table 1. The heating power corresponding to 0-50°C in the corresponding relationship table 1 is the first level power, and the heating power corresponding to 50-150°C is the second level power in the corresponding relationship table 1; therefore, when considering that the first detection position is located in the lower half of the furnace cavity, the heating power of the first detection position is determined as the heating power one level higher than the corresponding heating power when the differential temperature of the first detection position of 31°C falls within the range of 0-50°C, as the initial heating power of the first detection position, thereby controlling the first detection position in the furnace cavity to heat up to the target temperature with the initial heating power.

[0085] Optionally, the corresponding relationship table 1 also includes the heating time corresponding to the initial heating power corresponding to each differential temperature;

[0086] The S1021 further includes:

[0087] If there is a first detection position, the initial heating power, heating time and heating period are determined based on the preset corresponding relationship table 1, the first detection position in the furnace cavity is controlled to heat up during the heating period, and an end signal is sent when the heating ends;

[0088] The real-time acquisition of the detection temperature of the preset detection position in the furnace cavity until the product is processed includes:

[0089] When a start signal is received, the detection temperatures of all preset detection positions are obtained;

[0090] When an end signal is obtained, obtaining a detection temperature of a detection position corresponding to the end signal;

[0091] When product processing is completed, stop obtaining the detection temperatures of all preset detection positions.

[0092] During implementation, after the product is placed in the graphitization furnace, the operator presses the start button, the graphitization furnace heating system receives the start signal, the graphitization furnace heating system sends a detection signal to the temperature sensor at the detection position, and the temperature sensors at all preset detection positions in the furnace cavity detect the current temperature of the corresponding detection position and send the detected temperature to the graphitization furnace heating system.

[0093] After receiving the detected temperature, the graphitization furnace heating system calculates the differential temperature and determines whether each detection position is the first detection position or the second detection position.

[0094] In the correspondence table 1, each level of heating power corresponds to a corresponding heating time. When the first detection position is to be heated, the heating end time is obtained by adding the corresponding heating time to the initial heating time, thereby obtaining the heating period.

[0095] The detection position determined as the first detection position determines the initial heating power and heating time according to the corresponding relationship table 1 and calculates the heating period according to the current time. The graphitization furnace heating system controls the heating of the first detection position in the furnace cavity during the heating period and sends an end signal when the heating ends.

[0096] After receiving the end signal, the graphitization furnace heating system sends a detection signal to the temperature sensor at the first detection position after the heating is completed. The temperature sensor sends the detected temperature to the graphitization furnace heating system. The graphitization heating system receives the detected temperature and recalculates the difference temperature of the first detection position. According to the difference temperature, the detection position is re-determined to be the first detection position or the second detection position. If the first position is determined, the initial heating power and heating time are determined according to the corresponding relationship table 1, and the heating period is calculated according to the current time, and the above execution command is repeated. If it is determined to be the second detection position, the heating is stopped, and the detection is re-determined after 30 minutes.

[0097] Regardless of whether it is determined that the judgment action is repeated after the first detection temperature rises, or it is determined that the re-judgment is performed 30 minutes after the second detection temperature stops rising, the graphitization furnace heating system stops obtaining the detection temperatures of all preset detection positions when the product is processed and the operator presses the end button.

[0098] Optionally, the detection positions are several furnace cavity internal temperature detection positions and several product surface temperature detection positions; and the upper half and the lower half of the furnace cavity respectively correspond to more than one furnace cavity internal temperature detection position, and the upper half and the lower half of the furnace cavity respectively correspond to more than one product surface temperature detection position;

[0099] The S1021 further includes:

[0100] If the first detection positions exist, determining the number of the first detection positions in the upper half of the furnace cavity and the number of the first detection positions in the lower half of the furnace cavity;

[0101] If the number of first detection positions in the upper half of the furnace cavity is greater than the number of first detection positions in the lower half of the furnace cavity, the initial heating power of the first detection position in the upper half of the furnace cavity is determined according to the preset corresponding relationship table 1; and when there is a first detection position in the lower half of the furnace cavity, the upshift power of the first detection position in the lower half of the furnace cavity is determined according to the initial heating power corresponding to the preset corresponding relationship table 1, and the upshift power is used as the initial heating power of the first detection position in the lower half of the furnace cavity;

[0102] If the number of first detection positions in the upper half of the furnace cavity is less than the number of first detection positions in the lower half of the furnace cavity, the initial heating power of all first detection positions in the furnace cavity is determined according to the preset corresponding relationship table 1;

[0103] Based on the determined initial powers of all first detection positions and the preset corresponding relationship table 1, the heating time and heating period are determined, and the heating of each first detection position in the furnace cavity is controlled within the corresponding heating period.

[0104] In implementation, multiple detection positions are evenly distributed in the furnace cavity. In this embodiment, the internal temperature detection positions of the upper half of the furnace cavity and the lower half of the furnace cavity are equal, and there are multiple evenly distributed positions; the product surface temperature detection positions of the upper half of the furnace cavity and the lower half of the furnace cavity are equal, and there are multiple evenly distributed positions.

[0105] When there are multiple detection positions in the furnace chamber and are determined as the first detection position by the graphitization furnace heating system after detection, it is determined whether each first detection position is in the upper half or the lower half of the furnace chamber, and the number of first detection positions in the upper half of the furnace chamber is counted, and the number of first detection positions in the lower half of the furnace chamber is counted to determine the size of the number of first detection positions in the upper half of the furnace chamber and the number of first detection positions in the lower half of the furnace chamber.

[0106] When the number of first detection positions in the upper half of the furnace cavity is greater than the number of first detection positions in the lower half of the furnace cavity, it means that the lower half of the furnace cavity will be more affected by the low-temperature heat exchange of the upper half of the furnace cavity during the heating process, so it is often difficult to reach the required temperature within the corresponding heating time. The graphitization furnace heating system determines the initial heating power of the first detection position in the upper half of the furnace cavity according to the preset corresponding relationship table 1, and performs heating operation on the first detection position in the upper half of the furnace cavity during the heating period according to the initial heating power. At the same time, it is determined whether there is a first detection position in the lower half of the furnace cavity. If there is a first detection position in the lower half of the furnace cavity, the graphitization furnace heating system determines the upshift power for the first detection position in the lower half of the furnace cavity according to the corresponding relationship table 1; and uses the upshift power as the initial heating power, and determines the heating period according to the heating time corresponding to the original heating power, so as to heat the first detection position in the lower half of the furnace cavity during the heating period.

[0107] When the number of first detection positions in the upper half of the furnace chamber is less than the number of first detection positions in the lower half of the furnace chamber, it means that the lower half of the furnace chamber will be less exposed to low-temperature heat exchange from the upper half of the furnace chamber during the heating process, and therefore can often reach the required temperature as scheduled within the corresponding heating time. Therefore, at this time, whether it is the first detection position in the upper half of the furnace chamber or the lower half of the furnace chamber, the initial heating power and heating time can be determined according to the corresponding relationship table 1, and the graphitization furnace heating system heats the first detection position according to the initial heating power within the determined heating period.

[0108] Optionally, determining the upshift power at the first detection position of the lower half of the furnace cavity according to the initial heating power corresponding to the preset correspondence table 1, and using the upshift power as the initial heating power at the first detection position of the lower half of the furnace cavity, comprises:

[0109] Calculate the ratio of the number of first detection positions in the lower half of the furnace cavity to the number of first detection positions in the furnace cavity as a, calculate the heating time T'=T*a, and determine the heating period, wherein the heating time of the first detection position in the lower half of the furnace cavity is T;

[0110] If a is greater than the specified ratio, then T'=T*a;

[0111] If a is less than or equal to the specified ratio, then T'=T*specified ratio;

[0112] Determine the heating period according to T';

[0113] During the heating period, the first detection position in the lower half of the furnace cavity is controlled to heat up.

[0114] In practice, in order to further reduce the energy consumption in the production process of the graphitization furnace, the first detection position in the lower part adopts the upshift power as the initial heating power, but the heating time is still based on the original heating time, which is easy to cause excessive heating; therefore, combined with the heat exchange in the furnace cavity, once the upshift power is determined by the first detection position, and the upshift power is used as the initial heating power, the graphitization furnace heating system calculates the ratio a of the number of first detection positions in the lower half of the furnace cavity to the number of first detection positions in the furnace cavity according to the number of first detection positions counted, and then determines the new heating time T', T'=T*a. However, in order to control the duration of T' and try to avoid the situation where the heating time is too short, a specified ratio is preset in the graphitization furnace heating system. In this embodiment, the specified ratio is 0.8. Compare a with the specified ratio 0.8. When a is less than or equal to 0.8, T'=T*specified ratio 0.8, and when a is greater than the specified ratio, T'=T*a.

[0115] Optionally, when the end signal is obtained, obtaining the detection temperature of the detection position corresponding to the end signal includes:

[0116] When the end signal is obtained, the detection temperature of the detection position corresponding to the end signal is obtained, and the difference calculation is performed based on the detection temperature and the theoretical temperature in the corresponding relationship table 1, wherein the theoretical temperature is the temperature that should be reached after the heating time in the corresponding relationship table 1 ends;

[0117] If the difference is greater than the specified difference, the corresponding advance time is determined based on the preset correspondence table 2, and the heating time is determined, and the corresponding heating time in the correspondence table 1 is replaced with the determined heating time, wherein the correspondence table 2 at least includes the relationship between the specified difference and the advance time, and the heating time = the original heating time - the advance time.

[0118] In implementation, when the end signal is obtained, the graphitization furnace heating system will send a detection instruction to the temperature sensor. After the temperature sensor detects the temperature, it will send the detected temperature to the graphitization furnace heating system again. The graphitization furnace heating system will make a new round of judgment on the detection position according to the detected temperature and execute according to the judgment result.

[0119] However, in order to further refine the temperature control in the graphitization furnace heating system, after receiving the detected temperature sent by the temperature sensor, the graphitization furnace heating system will perform a difference calculation between the detected temperature and the theoretical temperature in the corresponding relationship table 1; specifically, each heating power gear corresponds to the temperature that can be increased at the detection position after the heating period ends. At this time, the detection temperature when the inspection position is used as the first detection position is added with the corresponding heating temperature, and compared with the detection temperature detected again after the first detection position ends and sends an end signal, the graphitization furnace heating system determines the corresponding advance time according to the preset corresponding relationship table 2 based on the above comparison result, and thus calculates the heating time based on the advance time.

[0120] If the temperature required for product processing is 2000℃, the detection temperature of the temperature sensor is 1600℃ at this time. After the graphitization furnace heating system receives the detection temperature of 1600℃, it calculates that the differential temperature is 400℃. Then, according to the corresponding relationship table 1, the graphitization furnace heating system places 400℃ in the third gear of the differential temperature of 150℃-400℃. The graphitization furnace heating system heats the detection position confirmed as the first detection position according to the heating power and heating time of the third gear. When the heating is completed, the graphitization furnace heating system sends an end signal and sends a signal to the detection position. The temperature sensor sends a detection signal to obtain the detected temperature after heating. At this time, the detected temperature of the detection position is 1810°C (that is, after the heating is completed, the temperature of the detection position rises from 1600°C to 1810°C). After obtaining the detected temperature of 1810°C after heating, the difference between the temperature and the theoretical temperature is calculated. In this embodiment, the theoretical temperature is 1850°C, and the calculated difference is 40°C; if the difference is greater than the specified difference, it means that the temperature after heating is greatly different from the theoretical temperature and the heating effect is poor. In this embodiment, the specified difference is 2 0℃, 40℃ is greater than 20℃, so when the graphitization furnace heating system obtains the differential temperature (2000℃-1810℃=190℃) according to the detected temperature (1810℃) after heating, it determines that the detection position is the first detection position again. The calculated differential temperature still falls in the third gear of the differential temperature of 150℃-400℃ according to the relationship correspondence table 1. If the detection position is still heated according to the third gear heating power and heating time according to the relationship correspondence table 1 at this time, it will inevitably approach 2000℃ at a very fast speed and eventually exceed 200 0℃, resulting in excessive heating, so it is necessary to limit the heating time in this case. In the corresponding relationship table 2, different heating powers correspond to different heating power levels. Once the difference is greater than the specified difference, the new heating time is calculated according to the relationship between the specified difference in the corresponding relationship table 2 and the advance time (new heating time = original heating time - advance time), and the new heating time is used to replace the heating time under the heating power level in the corresponding relationship table 1 to obtain a new heating period; thereby, by reducing the heating time, the occurrence of excessive heating is greatly avoided.

[0121] Optionally, the real-time acquisition of the detection temperature of a preset detection position in the furnace cavity until the product is processed includes:

[0122] Acquire detection temperatures of preset detection positions based on preset high temperature sensors and low temperature sensors respectively;

[0123] The high temperature graphitization furnace heating method also includes:

[0124] Whenever the detected temperature is obtained, the detected temperature is compared with the preset standard temperature;

[0125] If the detected temperature is greater than the standard temperature, the acquisition source of the detected temperature is determined to be a high temperature sensor;

[0126] If the detected temperature is lower than the standard temperature, the acquisition source of the detected temperature is determined to be a low temperature sensor.

[0127] In implementation, each detection position is provided with two temperature sensors, which are a high temperature sensor and a low temperature sensor respectively. The temperature measuring range of the high temperature sensor is 800-2600°C, and the temperature measuring range of the low temperature sensor is 0-1200°C. In this embodiment, the standard temperature is set to 800°C. When the graphitization furnace heating system receives the detected temperature, the detected temperature is compared with the standard temperature. When the detected temperature is less than 800°C, the data source of the detected temperature is determined to be the low temperature sensor. When the detected temperature is greater than 800°C, the data source of the detected temperature is determined to be the high temperature sensor. The graphitization furnace heating system determines the target temperature according to the detected temperature in the above steps, and sends the output result after the calculation to the PLC controller. The PLC controller controls the power regulator to adjust the power of the transformer to finally realize the heating of the heating electrode, so as to realize the heating of the detection position.

[0128] Optionally, the high temperature graphitization furnace heating method further includes:

[0129] The temperature rise log corresponding to each preset detection position is stored in real time until the processing of the product is completed, wherein the temperature rise log corresponding to the target detection position includes the acquisition time whenever the detection temperature of the target detection position is acquired, and the judgment result of judging whether the target detection position is the first detection position or the second detection position at the corresponding acquisition time, and the target detection position is any detection position;

[0130] The real-time acquisition of the detection temperature of the preset detection position in the furnace cavity until the product is processed includes:

[0131] Determine from a preset temperature rise experience table whether there is a temperature rise log corresponding to the current product to be processed, wherein the temperature rise experience table at least includes the relationship between the type of product to be processed and the temperature rise log;

[0132] If it exists, the temperature control operation is performed according to the judgment results corresponding to the different acquisition times in the corresponding temperature rise log; the temperature control operation includes the temperature rise operation and the temperature rise stop operation;

[0133] If it does not exist, the detection temperature of the preset detection position is obtained in real time until the product is processed.

[0134] During implementation, whenever a product needs to be processed, the operator needs to enter the corresponding product type on the graphitization furnace heating system webpage logged in on the computer before starting, and then press the start button. The graphitization furnace heating system will synchronously store the acquisition time when the detection temperature of the target detection position is obtained during the product processing process, and the judgment result of whether the target detection position is the first detection position or the second detection position at the corresponding acquisition time. The above data records and product types form a heating log and store it in the heating experience table.

[0135] Whenever a product is processed, the operator enters the product type on the graphitization furnace heating system webpage, and the graphitization furnace heating system mobilizes the pre-stored temperature rise experience table. If there is a temperature rise log of the product to be processed in the temperature rise experience table, the temperature control operation is performed according to the judgment results corresponding to different acquisition times in the temperature rise log. The temperature control operation includes temperature rise operation and temperature rise stop operation; until the product processing is completed.

[0136] If the heating log records that the heating start time for the graphitization furnace heating system to give a heating instruction to the first detection position is 10:23:17 on October 21, 2020, and the heating end time is 10:53:17 on October 21, 2020, then the heating duration is 30 minutes, and the above heating period is replaced with the heating start time 00:00:00 and the heating end time 00:30:00; when temperature control operation is performed according to the heating log, if the graphitization furnace heating system gives a heating instruction to the detection position at 5:19:23 on March 21, 2021, then the graphitization furnace heating system uses 5:19:23 on March 21, 2021 as the heating start time when the heating instruction is given, and adds 00:30:00 to the time when the heating instruction is given, that is, 5:49:23 on March 21, 2021 as the end time.

[0137] If there is no heating log for the product to be processed in the heating experience table, the graphitization furnace heating system creates a new product type and stores the acquisition time of each time the detection temperature of the target detection position is obtained during the product processing, and the judgment result of whether the target detection position is the first detection position or the second detection position at the corresponding acquisition time during the product processing. The above data is recorded under this product type, and a heating log corresponding to the product to be processed is formed at the end of the product processing to be stored in the heating experience table.

[0138] In summary, the graphitization furnace heating system performs refined temperature control operations on each product to be processed. When the product processing temperature is reached, unnecessary power consumption during the use of the graphitization furnace is reduced. Whenever the detection temperature is obtained, customized data-supported temperature control operations are performed on the detection position based on the detection temperature, thereby improving the cost-effectiveness of energy use.

[0139] The present application also discloses a high temperature graphitization furnace heating system. Figure 2 The graphitization furnace heating system includes: a temperature detection module 101: real-time acquisition of the detection temperature of a preset detection position in the furnace chamber until the product is processed; wherein the detection position includes at least a temperature detection point inside the furnace chamber and a temperature detection point on the surface of the product; Real-time temperature control module 201: Whenever the detected temperature is obtained, the differential temperature is calculated to determine whether there is a first detection position where the differential temperature is greater than 0 and a second detection position where the differential temperature is equal to 0; wherein the differential temperature is the difference between the target temperature and the detected temperature; If there is a first detection position, the initial heating power is determined based on a preset corresponding relationship table 1, and the first detection position in the furnace cavity is controlled to heat up to the target temperature; wherein the corresponding relationship table 1 is at least used to store the relationship between the difference temperature and the initial heating power; If there is a second detection position, the temperature rise at the second detection position is stopped.

[0144] Optionally, the real-time temperature control module is further used to determine the initial heating power according to a preset corresponding relationship table if the first detection position is located in the upper half of the furnace cavity;

[0145] If the first detection position is located in the lower half of the furnace cavity, the upshift power is determined according to the corresponding initial heating power in the preset corresponding relationship table, and the upshift power is used as the initial heating power.

[0146] Optionally, the real-time temperature control module is also used for the corresponding relationship table 1 to further include the heating time corresponding to the initial heating power corresponding to each differential temperature;

[0147] If there is a first detection position, the initial heating power, heating time and heating period are determined based on the preset corresponding relationship table 1, the first detection position in the furnace cavity is controlled to heat up during the heating period, and an end signal is sent when the heating ends;

[0148] The temperature detection module is also used to obtain the detection temperature of all preset detection positions when receiving the start signal;

[0149] When an end signal is obtained, obtaining a detection temperature of a detection position corresponding to the end signal;

[0150] When product processing is completed, stop obtaining the detection temperatures of all preset detection positions.

[0151] Optionally, the real-time temperature control module is also used for the detection positions to be a plurality of furnace cavity internal temperature detection positions and a plurality of product surface temperature detection positions; and the upper half and the lower half of the furnace cavity respectively correspond to more than one furnace cavity internal temperature detection position, and the upper half and the lower half of the furnace cavity respectively correspond to more than one product surface temperature detection position;

[0152] If the first detection positions exist, determining the number of the first detection positions in the upper half of the furnace cavity and the number of the first detection positions in the lower half of the furnace cavity;

[0153] If the number of first detection positions in the upper half of the furnace cavity is greater than the number of first detection positions in the lower half of the furnace cavity, the initial heating power of the first detection position in the upper half of the furnace cavity is determined according to the preset corresponding relationship table 1; and when there is a first detection position in the lower half of the furnace cavity, the upshift power of the first detection position in the lower half of the furnace cavity is determined according to the initial heating power corresponding to the preset corresponding relationship table 1, and the upshift power is used as the initial heating power of the first detection position in the lower half of the furnace cavity;

[0154] If the number of first detection positions in the upper half of the furnace cavity is less than the number of first detection positions in the lower half of the furnace cavity, the initial heating power of all first detection positions in the furnace cavity is determined according to the preset corresponding relationship table 1;

[0155] Based on the determined initial powers of all first detection positions and the preset corresponding relationship table 1, the heating time and heating period are determined, and the heating of each first detection position in the furnace cavity is controlled within the corresponding heating period.

[0156] Optionally, the real-time temperature control module is further used to calculate the ratio of the number of first detection positions in the lower half of the furnace cavity to the number of first detection positions in the furnace cavity as a, calculate the heating time T'=T*a, and determine the heating period, wherein the heating time of the first detection positions in the lower half of the furnace cavity is T;

[0157] During the heating period, the first detection position in the lower half of the furnace cavity is controlled to heat up.

[0158] Optionally, the real-time temperature control module is further used for: if a is greater than a specified ratio, then T'=T*a;

[0159] If a is less than the specified ratio, then T'=T*specified ratio;

[0160] The heating period is determined according to T'.

[0161] Optionally, the temperature detection module is further used to obtain the detection temperature of the detection position corresponding to the end signal when the end signal is obtained, and perform a difference calculation based on the detection temperature and the theoretical temperature in the corresponding relationship table 1, wherein the theoretical temperature is the temperature that should be reached after the heating time in the corresponding relationship table 1 ends;

[0162] If the difference is greater than the specified difference, the corresponding advance time is determined based on the preset correspondence table 2, and the heating time is determined, and the corresponding heating time in the correspondence table 1 is replaced with the determined heating time, wherein the correspondence table 2 at least includes the relationship between the specified difference and the advance time, and the heating time = the original heating time - the advance time.

[0163] Optionally, the temperature detection module is further used to obtain the detection temperature of the preset detection position based on the preset high temperature sensor and the preset low temperature sensor respectively;

[0164] The graphitization furnace heating system also includes a temperature comparison module, which is used to compare the detected temperature with a preset standard temperature whenever the detected temperature is obtained;

[0165] If the detected temperature is greater than the standard temperature, the acquisition source of the detected temperature is determined to be a high temperature sensor;

[0166] If the detected temperature is lower than the standard temperature, the acquisition source of the detected temperature is determined to be a low temperature sensor.

[0167] Optionally, the graphitization furnace heating system further includes a product processing storage module 301, which is used to store the temperature rise log corresponding to each preset detection position in real time until the processing of the product is completed, wherein the temperature rise log corresponding to the target detection position includes the acquisition time whenever the detection temperature of the target detection position is acquired, and the judgment result of judging whether the target detection position is the first detection position or the second detection position at the corresponding acquisition time, and the target detection position is any detection position;

[0168] The temperature detection module is also used to determine whether there is a temperature rise log corresponding to the current product to be processed from a preset temperature rise experience table, wherein the temperature rise experience table at least includes the relationship between the type of product to be processed and the temperature rise log;

[0169] If it exists, the temperature control operation is performed according to the judgment results corresponding to the different acquisition times in the corresponding temperature rise log; the temperature control operation includes the temperature rise operation and the temperature rise stop operation;

[0170] If it does not exist, the detection temperature of the preset detection position is obtained in real time until the product is processed.

[0171] The embodiment of the present application further discloses a high-temperature graphitization furnace heating device including a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and executed by the graphitization furnace heating system.

[0172] The embodiment of the present application also discloses a computer-readable storage medium, which stores a computer program that can be loaded and executed by a processor, such as a graphitization furnace heating method. The computer-readable storage medium includes, for example: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program codes.

[0173] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0174] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the protection scope of the application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

Claims

1. A high temperature graphitization furnace heating method, characterized in that: include: Real-time acquisition of the detection temperature of the preset detection positions in the furnace cavity until the product is processed; wherein the detection positions at least include the temperature detection position inside the furnace cavity and the temperature detection position on the surface of the product; Whenever the detection temperature is obtained, the differential temperature is calculated to determine whether there is a first detection position where the differential temperature is greater than 0 and a second detection position where the differential temperature is equal to 0; wherein the differential temperature is the difference between the target temperature and the detection temperature; If there is a first detection position, the initial heating power is determined based on a preset corresponding relationship table 1, and the first detection position in the furnace cavity is controlled to heat up to the target temperature; wherein the corresponding relationship table 1 is at least used to store the relationship between the difference temperature and the initial heating power; If there is a second detection position, the temperature rise at the second detection position is stopped.

2. A high temperature graphitization furnace heating method according to claim 1, characterized in that: If the first detection position exists, the initial heating power is determined based on a preset corresponding relationship table, and the first detection position in the furnace cavity is controlled to heat up to a target temperature, including: If the first detection position is located in the upper half of the furnace cavity, the initial heating power is determined according to a preset corresponding relationship table 1; If the first detection position is located in the lower half of the furnace cavity, the upshift power is determined according to the initial heating power corresponding to the preset corresponding relationship table 1, and the upshift power is used as the initial heating power.

3. A high temperature graphitization furnace heating method according to claim 1, characterized in that: The corresponding relationship table 1 also includes the heating time corresponding to the initial heating power corresponding to each differential temperature; If the first detection position exists, the initial heating power is determined based on the preset corresponding relationship table 1, and the first detection position in the furnace cavity is controlled to heat up to the target temperature, including: If there is a first detection position, the initial heating power, heating time and heating period are determined based on the preset corresponding relationship table 1, the first detection position in the furnace cavity is controlled to heat up during the heating period, and an end signal is sent when the heating ends; The real-time acquisition of the detection temperature of the preset detection position in the furnace cavity until the product is processed includes: When a start signal is received, the detection temperatures of all preset detection positions are obtained; When an end signal is obtained, obtaining a detection temperature of a detection position corresponding to the end signal; When product processing is completed, stop obtaining the detection temperatures of all preset detection positions.

4. A high temperature graphitization furnace heating method according to claim 3, characterized in that: The detection positions are a plurality of furnace cavity internal temperature detection positions and a plurality of product surface temperature detection positions; and the upper half and the lower half of the furnace cavity correspond to more than one furnace cavity internal temperature detection position, and the upper half and the lower half of the furnace cavity correspond to more than one product surface temperature detection position; If the first detection position exists, the initial heating power, heating time and heating period are determined based on the preset corresponding relationship table 1, and the first detection position in the furnace cavity is controlled to heat up during the heating period, including: If the first detection positions exist, determining the number of the first detection positions in the upper half of the furnace cavity and the number of the first detection positions in the lower half of the furnace cavity; If the number of first detection positions in the upper half of the furnace cavity is greater than the number of first detection positions in the lower half of the furnace cavity, the initial heating power of the first detection position in the upper half of the furnace cavity is determined according to the preset corresponding relationship table 1; and when there is a first detection position in the lower half of the furnace cavity, the upshift power of the first detection position in the lower half of the furnace cavity is determined according to the initial heating power corresponding to the preset corresponding relationship table 1, and the upshift power is used as the initial heating power of the first detection position in the lower half of the furnace cavity; If the number of first detection positions in the upper half of the furnace cavity is less than the number of first detection positions in the lower half of the furnace cavity, the initial heating power of all first detection positions in the furnace cavity is determined according to the preset corresponding relationship table 1; Based on the determined initial powers of all first detection positions and the preset corresponding relationship table 1, the heating time and heating period are determined, and the temperature of each first detection position in the furnace cavity is controlled to rise during the corresponding heating period.

5. A high temperature graphitization furnace heating method according to claim 4, characterized in that: The step of determining the upshift power at the first detection position of the lower half of the furnace cavity according to the initial heating power corresponding to the preset corresponding relationship table 1, and using the upshift power as the initial heating power at the first detection position of the lower half of the furnace cavity, comprises: Calculate the ratio of the number of first detection positions in the lower half of the furnace cavity to the number of first detection positions in the furnace cavity as a, calculate the heating time T'=T*a, and determine the heating period, wherein the heating time of the first detection position in the lower half of the furnace cavity is T; During the heating period, the first detection position in the lower half of the furnace cavity is controlled to heat up.

6. A high temperature graphitization furnace heating method according to claim 5, characterized in that: The calculation of the heating time T'=T*a and determination of the heating period include: If a is greater than the specified ratio, then T'=T*a; If a is less than or equal to the specified ratio, then T'=T*specified ratio; The heating period is determined according to T'.

7. A high temperature graphitization furnace heating method according to claim 3, characterized in that: When the end signal is obtained, obtaining the detection temperature of the detection position corresponding to the end signal includes: When the end signal is obtained, the detection temperature of the detection position corresponding to the end signal is obtained, and the difference calculation is performed based on the detection temperature and the theoretical temperature in the corresponding relationship table 1, wherein the theoretical temperature is the temperature that should be reached after the heating time in the corresponding relationship table 1 ends; If the difference is greater than the specified difference, the corresponding advance time is determined based on the preset correspondence table 2, and the heating time is determined, and the corresponding heating time in the correspondence table 1 is replaced with the determined heating time, wherein the correspondence table 2 at least includes the relationship between the specified difference and the advance time, and the heating time = the original heating time - the advance time.

8. A high temperature graphitization furnace heating method according to claim 1, characterized in that: The real-time acquisition of the detection temperature of the preset detection position in the furnace cavity until the product is processed includes: Acquire detection temperatures of preset detection positions based on preset high temperature sensors and low temperature sensors respectively; The method further comprises: Whenever the detected temperature is obtained, the detected temperature is compared with the preset standard temperature; If the detected temperature is greater than the standard temperature, the acquisition source of the detected temperature is determined to be a high temperature sensor; If the detected temperature is lower than the standard temperature, the acquisition source of the detected temperature is determined to be a low temperature sensor.

9. A high temperature graphitization furnace heating method according to claim 1, characterized in that: The method further comprises: The temperature rise log corresponding to each preset detection position is stored in real time until the processing of the product is completed, wherein the temperature rise log corresponding to the target detection position includes the acquisition time whenever the detection temperature of the target detection position is acquired, and the judgment result of judging whether the target detection position is the first detection position or the second detection position at the corresponding acquisition time, and the target detection position is any detection position; The real-time acquisition of the detection temperature of the preset detection position in the furnace cavity until the product is processed includes: Determine from a preset temperature rise experience table whether there is a temperature rise log corresponding to the current product to be processed, wherein the temperature rise experience table at least includes the relationship between the type of product to be processed and the temperature rise log; If it exists, the temperature control operation is performed according to the judgment results corresponding to the different acquisition times in the corresponding temperature rise log; the temperature control operation includes the temperature rise operation and the temperature rise stop operation; If it does not exist, the detection temperature of the preset detection position is obtained in real time until the product is processed.

10. A high temperature graphitization furnace heating system, characterized in that: include, Temperature detection module: real-time acquisition of the detection temperature of the preset detection position in the furnace cavity until the product is processed; wherein the detection position at least includes the temperature detection point inside the furnace cavity and the temperature detection point on the surface of the product; Real-time temperature control module: Whenever the detected temperature is obtained, the differential temperature is calculated to determine whether there is a first detection position where the differential temperature is greater than 0 and a second detection position where the differential temperature is equal to 0; the differential temperature is the difference between the target temperature and the detected temperature; If there is a first detection position, the initial heating power is determined based on a preset corresponding relationship table 1, and the first detection position in the furnace cavity is controlled to heat up to the target temperature; wherein the corresponding relationship table 1 is at least used to store the relationship between the difference temperature and the initial heating power; If there is a second detection position, the temperature rise at the second detection position is stopped.

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