Electromagnetic servo oil temperature machine double temperature double control device and method

Abstract

The application relates to a double-temperature double-control device and method of an electromagnetic servo oil temperature machine, and belongs to the field of heating equipment.The technical scheme points of the application are as follows: a plurality of electromagnetic heating bodies are arranged in a box body, a plurality of electromagnetic shielding covers are arranged in the box body, the number of the electromagnetic shielding covers is consistent with that of the electromagnetic heating bodies, and the electromagnetic shielding covers are clamped outside the electromagnetic heating bodies to wrap the electromagnetic coil parts of the electromagnetic heating bodies.The application has the effect of reducing the floor area occupied by the plurality of electromagnetic heating bodies during installation.

Description

Technical Field

[0001] This application relates to the field of heating equipment, and in particular to an electromagnetic servo oil temperature controller with dual temperature and dual control device and method. Background Technology

[0002] High-temperature oil temperature controllers, which can heat heat transfer oil to a high temperature and transfer the heat to the load end through a circulating oil pump, play an important role in many fields such as industrial production.

[0003] For enterprises with high heating efficiency, electromagnetic heating is generally used to raise the temperature of heat transfer oil. When applied to the field of high-temperature oil temperature controllers, electromagnetic heating technology has high heating efficiency. Heat is generated directly on the pipe wall of the magnetic conductor pipeline, eliminating the radiation and convection losses of traditional electric heating coils. The overall energy saving rate can usually reach more than 30%. Furthermore, the magnetic conductor pipeline and the electromagnetic coil are not in direct contact, the electromagnetic coil itself does not generate heat, and there is a heat insulation layer between the magnetic conductor pipeline and the electromagnetic coil for heat insulation.

[0004] However, for environments requiring independent oil supply to multiple channels, multiple electromagnetic heating elements are needed. But when an electromagnetic heating element is working, it generates a magnetic field. Adjacent electromagnetic heating elements need to be separated by a certain distance, otherwise the magnetic fields of adjacent electromagnetic heating elements will interfere with each other. Therefore, the more channels that require independent oil supply, the larger the footprint of the electromagnetic servo machine, which needs to be improved. Summary of the Invention

[0005] To reduce the floor space required when installing multiple electromagnetic heating elements, this application provides a dual-temperature dual-control device and method for an electromagnetic servo oil temperature controller.

[0006] In the first aspect, this application provides an electromagnetic servo oil temperature controller with dual temperature and dual control, which adopts the following technical solution: An electromagnetic servo oil temperature controller with dual temperature and dual control includes a housing and multiple electromagnetic heating elements. The multiple electromagnetic heating elements are arranged inside the housing, and multiple electromagnetic shielding covers are arranged inside the housing. The number of electromagnetic shielding covers is the same as the number of electromagnetic heating elements. The electromagnetic shielding covers are clipped onto the outside of the electromagnetic heating elements to wrap the electromagnetic coil portion of the electromagnetic heating elements.

[0007] By adopting the above technical solution, an electromagnetic shielding cover is set inside the box, matching the number of electromagnetic heating elements, and it is then attached to the outside of the electromagnetic heating elements to enclose the electromagnetic coil. This avoids mutual interference of the magnetic fields of adjacent electromagnetic heating elements, allowing multiple electromagnetic heating elements to be arranged according to the basic equipment placement distance, thereby reducing the floor space occupied when installing multiple electromagnetic heating elements.

[0008] Preferably, each of the electromagnetic heating elements is provided with a data acquisition unit and a power output unit. The data acquisition unit includes a liquid temperature acquisition module, a liquid flow rate acquisition module, and a current and voltage acquisition module. The temperature acquisition module is used to acquire the initial temperature and discharge temperature of the liquid medium in the pipe. The liquid flow rate acquisition module is used to acquire the flow rate of the liquid medium in the pipe. The current and voltage acquisition module acquires the voltage or current of the electromagnetic coil. The power output unit adjusts the power of the electromagnetic coil according to the data acquired by the data acquisition unit.

[0009] By adopting the above technical solution, the liquid temperature acquisition module in the data acquisition unit collects the initial temperature and discharge temperature of the liquid medium in the pipeline, the liquid flow rate acquisition module collects the flow rate of the liquid medium, and the current and voltage acquisition module collects the voltage or current of the electromagnetic coil. The power output unit can adjust the power of the electromagnetic coil according to these collected data to achieve more precise control of the electromagnetic heating element.

[0010] Preferably, when the liquid flow rate acquisition module detects that the flow rate of the liquid medium in the pipe is lower than a preset threshold, the liquid flow rate acquisition module sends flow rate data to the control unit. After receiving the flow rate data acquired by the liquid flow rate acquisition module, the power output unit linearly reduces the heating power of the electromagnetic coil according to the proportion of the liquid flow rate.

[0011] By adopting the above technical solution and setting up a data acquisition unit and a power output unit, the power of the electromagnetic coil can be adjusted according to the acquired data. When the liquid flow rate acquisition module detects that the liquid medium flow rate in the pipeline is lower than the preset threshold, the power output unit linearly reduces the heating power of the electromagnetic coil according to the liquid flow rate ratio, which can avoid overheating when the liquid flow rate is low and improve energy utilization efficiency.

[0012] Preferably, when the liquid flow rate acquisition module detects that the flow rate of the liquid medium in the pipeline is zero, the liquid flow rate acquisition module sends flow rate data to the control unit. After receiving the flow rate data of zero flow rate of the liquid medium in the pipeline acquired by the liquid flow rate acquisition module, the power output unit triggers the shutdown protection.

[0013] By adopting the above technical solution, when the liquid flow rate acquisition module detects that the liquid medium flow rate in the pipeline is zero, it triggers the shutdown protection, which can prevent the electromagnetic heating element from working continuously when there is no liquid flow, thereby reducing equipment wear and improving the safety and service life of the equipment.

[0014] Secondly, this application provides a dual-temperature dual-control method for an electromagnetic servo oil temperature controller, employing the following technical solution: A dual-temperature dual-control method for an electromagnetic servo oil temperature controller, wherein the oil temperature controller includes at least two electromagnetic heating elements, and the two electromagnetic heating elements are independently temperature controlled; The acquired signals include at least the temperature signal of the liquid medium at the pipe inlet and the real-time flow rate signal of the liquid medium inside the pipe. The power output is calculated based on the real-time flow rate of the liquid medium in the pipeline, the temperature of the liquid medium at the pipeline inlet, the preset target temperature of the liquid medium, and the specific heat capacity of the liquid medium itself. Adjust the amplitude of the high-frequency current in the electromagnetic coil according to the heating power.

[0015] By adopting the above technical solution, at least two independently temperature-controlled electromagnetic heating elements can be used to meet different needs. The temperature signal of the liquid medium at the pipe inlet and the real-time flow rate signal of the liquid medium in the pipe are collected. The heating power of the electromagnetic coil is calculated based on the liquid flow rate, inlet temperature, preset target temperature and specific heat capacity of the liquid medium, and the amplitude of the high-frequency current is adjusted. The power of the electromagnetic heating elements can be precisely controlled to achieve efficient energy utilization.

[0016] Preferably, the method further includes: The signal also includes the temperature signal of the liquid medium at the pipe outlet; The heating power of the electromagnetic coil is calculated based on the flow rate of the liquid medium in the pipeline, the temperature of the liquid medium at the pipeline inlet, the preset target temperature of the liquid medium, and the specific heat capacity of the liquid medium itself, as a heating power estimate. The power correction is calculated based on the difference between the temperature of the liquid medium at the pipeline outlet and the preset target temperature of the liquid medium. The power correction is then added to the estimated heating power to obtain the target heating power. Adjust the high-frequency current amplitude of the electromagnetic coil according to the target heating power.

[0017] By adopting the above technical solution, the power correction amount is calculated using the temperature signal of the liquid medium at the pipeline outlet and superimposed with the heating power estimate to obtain the target heating power. This allows for more precise adjustment of the high-frequency current amplitude of the electromagnetic coil, achieving accurate control of the electromagnetic heating element power and improving the accuracy of oil temperature control.

[0018] Preferably, the method further includes: The signal also includes the real-time current or voltage signal of the electromagnetic coil; The equivalent impedance of the load is calculated based on the real-time current or voltage signal of the electromagnetic coil to obtain the impedance matching result. The frequency of the alternating current of the electromagnetic coil is adjusted to make the circuit work in the resonant state. Adjust the high-frequency current amplitude of the electromagnetic coil based on the target heating power and impedance matching results.

[0019] By adopting the above technical solution, the real-time current or voltage signal of the electromagnetic coil is collected and the equivalent impedance of the load is calculated. The frequency of the alternating current of the electromagnetic coil is adjusted so that the circuit works in a resonant state, which can improve the efficiency of electromagnetic heating. By combining the target heating power and impedance matching results to adjust the amplitude of the high-frequency current, precise control of the electromagnetic heating power can be achieved.

[0020] Preferably, the method further includes: When the real-time flow rate of the liquid medium in the pipe is lower than the preset threshold flow rate, the heating power of the electromagnetic coil is reduced linearly according to the flow rate ratio. When the real-time flow rate is zero, a shutdown protection mechanism is triggered.

[0021] By adopting the above technical solution, when the real-time flow rate of the liquid medium in the pipeline is lower than the preset threshold flow rate, the heating power of the electromagnetic coil is reduced linearly according to the flow rate ratio, which can avoid overheating when the liquid flow rate is low, achieve energy saving and protect the equipment; when the real-time flow rate is zero, the shutdown protection is triggered, which can prevent the equipment from dry burning when there is no liquid flow and avoid equipment damage.

[0022] Thirdly, this application provides an electromagnetic servo oil temperature controller dual-temperature dual-control platform, which adopts the following technical solution: the electromagnetic servo oil temperature controller dual-temperature dual-control platform includes a processor and a memory, the memory stores at least one instruction, at least one program, code set or instruction set, the at least one instruction, the at least one program, and the code set are loaded and executed by the processor as described in any one of claims 5 to 8, an electromagnetic servo oil temperature controller dual-temperature dual-control method.

[0023] Fourthly, this application provides a computer-readable storage medium that employs the following technical solution: the storage medium stores at least one instruction, at least one program, code set, or instruction set, wherein the at least one instruction, the at least one program, the code set, or the instruction set is loaded and executed by a processor to implement the dual-temperature dual-control method for an electromagnetic servo oil temperature controller as described in any one of claims 5 to 8.

[0024] In summary, this application includes at least one of the following beneficial technical effects: In this application, an electromagnetic shielding cover is set inside the box, with the number of electromagnetic heating elements matching the number of electromagnetic heating elements. This shielding cover is then attached to the outside of the electromagnetic heating elements to enclose the electromagnetic coil. This prevents the magnetic fields of adjacent electromagnetic heating elements from interfering with each other, allowing multiple electromagnetic heating elements to be arranged according to the basic equipment placement distance, thereby reducing the floor space occupied when installing multiple electromagnetic heating elements. Furthermore, the liquid temperature acquisition module in the data acquisition unit collects the initial and discharge temperatures of the liquid medium in the pipeline, the liquid flow rate acquisition module collects the flow rate of the liquid medium, and the current and voltage acquisition module collects the voltage or current of the electromagnetic coil. The power output unit can adjust the power of the electromagnetic coil based on these collected data to achieve more precise control of the electromagnetic heating element. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of an electromagnetic servo oil temperature controller with dual temperature and dual control according to an embodiment of this application.

[0027] Explanation of reference numerals in the attached diagram: 1. Box; 2. Electromagnetic heating element; 3. Electromagnetic shield. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1 This application will be described in further detail.

[0029] This application provides an embodiment of an electromagnetic servo oil temperature controller with dual temperature and dual control, referring to... Figure 1 The device includes a housing 1 and multiple electromagnetic heating elements 2. The multiple electromagnetic heating elements 2 are arranged inside the housing 1. The housing 1 is also equipped with multiple electromagnetic shielding covers 3. The number of electromagnetic shielding covers 3 is the same as the number of electromagnetic heating elements 2. The electromagnetic shielding covers 3 are clipped onto the outside of the electromagnetic heating elements 2 to wrap the electromagnetic coil part of the electromagnetic heating elements 2. This can avoid the magnetic fields of adjacent electromagnetic heating elements 2 from interfering with each other, so that the multiple electromagnetic heating elements 2 can be installed more compactly in the housing 1, thereby reducing the overall footprint of the device.

[0030] The electromagnetic shielding cover 3 can be made of metal materials, such as copper or aluminum. Copper electromagnetic shielding covers 3 have good conductivity and shielding performance, effectively preventing the magnetic field generated by the electromagnetic heating element 2 from diffusing outwards. Aluminum electromagnetic shielding covers 3 have the advantages of being lightweight and low-cost, making them suitable for applications where weight and cost are critical. The shape of the electromagnetic shielding cover 3 is usually similar to that of the electromagnetic heating element 2, with its inner diameter slightly larger than the outer diameter of the electromagnetic heating element 2, so that it can be tightly fitted onto the outside of the electromagnetic heating element 2. The electromagnetic shielding cover 3 and the electromagnetic heating element 2 can be connected by an interference fit to ensure that their relative positions are fixed and to prevent displacement of the electromagnetic shielding cover 3 during device operation.

[0031] The electromagnetic heating element 2 mainly consists of a magnetic conductor tube and an electromagnetic coil. The magnetic conductor tube is generally made of ferromagnetic materials, such as carbon steel, which has excellent magnetic permeability and can rapidly heat up under the alternating magnetic field generated by the electromagnetic coil, thereby heating the heat-conducting oil inside the tube. The electromagnetic coil is usually made of enameled wire, which has good insulation properties to prevent current leakage. The electromagnetic coil is wound around the outside of the magnetic conductor tube, and an insulation layer is placed between them. The insulation layer is generally made of heat-insulating materials such as ceramic fiber, which can reduce heat loss and improve energy utilization efficiency.

[0032] Each electromagnetic heating element 2 is equipped with a data acquisition unit and a power output unit. The data acquisition unit includes a liquid temperature acquisition module, a liquid flow rate acquisition module, and a current and voltage acquisition module. The liquid temperature acquisition module can use temperature sensors such as thermocouples or resistance temperature detectors (RTDs). Thermocouples have the advantages of fast response speed and wide measurement range, while RTDs have the characteristics of high measurement accuracy. The liquid temperature acquisition module is installed on the pipeline to collect the initial temperature and discharge temperature of the liquid medium inside the pipeline. The liquid flow rate acquisition module can use a turbine flow meter or an electromagnetic flow meter. Turbine flow meters are simple in structure and inexpensive, while electromagnetic flow meters are suitable for measuring the flow rate of various conductive liquids. The liquid flow rate acquisition module is installed inside the pipeline to collect the flow rate of the liquid medium inside the pipeline. The current and voltage acquisition module can use Hall effect sensors or current transformers, which can accurately collect the voltage or current of the electromagnetic coil. The power output unit adjusts the power of the electromagnetic coil according to the data collected by the data acquisition unit to achieve precise control of the heat transfer oil temperature.

[0033] When the liquid flow rate acquisition module detects that the flow rate of the liquid medium in the pipeline is lower than a preset threshold, it sends flow rate data to the control unit. Upon receiving the flow rate data from the liquid flow rate acquisition module, the power output unit linearly reduces the heating power of the electromagnetic coil according to the liquid flow rate. This is because when the liquid flow rate is low, the heat transfer oil stays in the pipeline for a longer time. If a high heating power is maintained, the heat transfer oil temperature may become too high, potentially damaging the equipment. Linearly reducing the heating power effectively avoids this situation.

[0034] When the liquid flow rate acquisition module detects that the flow rate of the liquid medium in the pipeline is zero, it will also send flow rate data to the control unit. Upon receiving the zero flow rate data from the liquid flow rate acquisition module, the power output unit will trigger a shutdown protection mechanism. This is because if heating continues when the liquid stops flowing, heat will accumulate in the heat transfer oil within the pipeline, causing a rapid temperature increase and potentially leading to a safety hazard. Triggering the shutdown protection mechanism promptly cuts off the power supply, preventing such a dangerous situation.

[0035] The implementation principle of this embodiment is as follows: by setting an electromagnetic shield 3 outside the electromagnetic heating element 2, magnetic field interference between adjacent electromagnetic heating elements 2 is effectively avoided, allowing multiple electromagnetic heating elements 2 to be arranged more closely together, thereby greatly reducing the footprint of the device. Simultaneously, the data acquisition unit can collect data such as the temperature and flow rate of the liquid medium in the pipeline, as well as the current and voltage of the electromagnetic coil, in real time. The power output unit precisely adjusts the power of the electromagnetic coil based on this data, achieving dual-temperature dual-control of the heat transfer oil temperature. Furthermore, when the liquid flow rate is too low or zero, corresponding protective measures are taken, improving the safety and reliability of the device. Compared with the prior art, this embodiment reduces the footprint of the device while improving its performance and safety, demonstrating significant improvement and contribution.

[0036] This application provides a dual-temperature dual-control method for an electromagnetic servo oil temperature controller, comprising the following steps: The oil temperature controller includes at least two electromagnetic heating elements 2, each with independent temperature control. The electromagnetic heating elements 2 can adopt the structure described in the above embodiment, with each element equipped with an independent data acquisition and control device, capable of temperature control based on the actual conditions within its respective pipeline.

[0037] S1. Signal Acquisition: The signals include at least the temperature signal of the liquid medium at the pipe inlet, the real-time flow velocity signal of the liquid medium inside the pipe, the temperature signal of the liquid medium at the pipe outlet, and the real-time current or voltage signal of the electromagnetic coil. The temperature signals at the pipe inlet and outlet can be acquired using temperature sensors installed at the pipe inlet, such as thermocouples or resistance temperature detectors (RTDs). The real-time flow velocity signal of the liquid medium inside the pipe can be acquired using flow velocity sensors installed inside the pipe, such as turbine flow meters or electromagnetic flow meters. The real-time current or voltage signal of the electromagnetic coil can be acquired using current / voltage transformers. These sensors transmit the acquired signals to the control unit.

[0038] S2, Power Output: Based on the real-time flow rate of the liquid medium in the pipeline, the temperature of the liquid medium at the pipeline inlet, and the preset target temperature of the liquid medium, combined with the specific heat capacity of the liquid medium itself, the estimated heating power of the electromagnetic coil is calculated. Based on the real-time flow rate m (unit: kg / h) collected by the flow sensor, combined with the target temperature difference ΔT (target temperature - pipeline inlet temperature) and the specific heat capacity c of the liquid medium, the power is calculated using formula P. 预 = (η is the basic efficiency of electromagnetic heating, which is 90%), calculate the theoretically required heating power P. 预 .

[0039] Since the efficiency η in the formula varies with the load impedance, the feedforward calculation of P...预 There is an error, so it needs to be corrected through temperature feedback. Based on the difference between the temperature of the liquid medium at the pipeline outlet and the preset target temperature of the liquid medium, the power correction amount is calculated using a PID algorithm. The power correction amount is then added to the estimated heating power to obtain the target heating power.

[0040] Specifically, the actual temperature T at the pipe outlet is collected. 实 , with target temperature T 目 Compare and calculate the temperature deviation ΔT 偏 =T 目 -T 实 ; The power correction ΔP is calculated using the PID algorithm: If ΔT 偏 If ΔP > 0 (actual temperature is lower than expected), then ΔP is positive, and the total power P 总 =P 预 +ΔP; If ΔT 偏 If ΔP < 0 (actual temperature is higher than expected), then ΔP is negative, and the total power P 总 =P 预 -ΔP; If ΔT 偏 =0, then ΔP=0, and the total power P 总 =P 预 .

[0041] The equivalent impedance of the load is calculated based on the real-time current or voltage signal of the electromagnetic coil to obtain the impedance matching result. The frequency of the alternating current of the electromagnetic coil is adjusted to make the circuit work in the resonant state. The power output unit calculates the required target heating power using thermodynamic formulas based on collected data such as flow rate and temperature. Based on the target heating power and impedance matching results, it adjusts the high-frequency current amplitude of the electromagnetic coil. After the total power is determined, the control unit collects the real-time current I and voltage U of the coil through a current / voltage transformer, calculates the equivalent impedance Z=U / I of the load, and then adjusts the alternating current frequency ƒ of the coil through a frequency converter circuit to make the circuit operate at the resonant frequency (ƒ0=1 / (2π√LC), where L is the coil inductance and C is the resonant capacitance), ensuring maximum efficiency in converting electrical energy to magnetic energy and avoiding power loss due to impedance mismatch.

[0042] The control unit adjusts the amplitude of the high-frequency current in the electromagnetic coil based on the calculated heating power. By adjusting the amplitude of the high-frequency current supplied to the electromagnetic coil, the control unit changes the magnetic field strength generated by the electromagnetic coil, thereby regulating the heating power of the magnetic conductor pipeline and ultimately controlling the temperature of the liquid medium.

[0043] When the real-time flow rate of the liquid medium in the pipe is lower than the preset threshold flow rate, the heating power of the electromagnetic coil is reduced linearly according to the flow rate ratio. When the real-time flow rate is zero, a shutdown protection mechanism is triggered.

[0044] In this embodiment, the liquid medium is an oil-based medium.

[0045] The implementation principle of this embodiment is as follows: by independently controlling multiple electromagnetic heating elements and collecting key parameters of the liquid medium in the pipeline in real time, and combining the physical characteristics of the liquid medium for precise power calculation and adjustment, dual-temperature dual-control of the oil temperature controller is achieved. Compared with traditional oil temperature control methods, this method can more accurately meet the temperature requirements of different liquid media in pipelines, improve energy utilization efficiency, reduce energy waste, and also improve the temperature control accuracy and stability in industrial production processes.

[0046] This application also discloses an electromagnetic servo oil temperature controller dual-temperature dual-control platform, including a memory and a processor. The memory stores a computer program that can be loaded by the processor and executed as an electromagnetic servo oil temperature controller dual-temperature dual-control method.

[0047] This application also discloses a computer-readable storage medium that stores a computer program that can be loaded and executed by a processor, such as a dual-temperature dual-control method for an electromagnetic servo oil temperature controller. The computer-readable storage medium includes, for example, various media capable of storing program code, such as a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0048] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0049] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit the scope of protection of the application. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

Claims

1. A dual-temperature dual-control electromagnetic servo oil temperature controller, comprising a housing (1) and multiple electromagnetic heating elements (2), wherein the multiple electromagnetic heating elements (2) are disposed within the housing (1), characterized in that: The housing (1) is provided with multiple electromagnetic shielding covers (3), the number of which is the same as the number of electromagnetic heating elements (2). The electromagnetic shielding covers (3) are attached to the outside of the electromagnetic heating elements (2) to wrap the electromagnetic coil part of the electromagnetic heating elements (2).

2. The electromagnetic servo oil temperature controller with dual temperature and dual control device according to claim 1, characterized in that: Each of the electromagnetic heating elements (2) is provided with a data acquisition unit and a power output unit. The data acquisition unit includes a liquid temperature acquisition module, a liquid flow rate acquisition module, and a current and voltage acquisition module. The temperature acquisition module is used to acquire the initial temperature and discharge temperature of the liquid medium in the pipe. The liquid flow rate acquisition module is used to acquire the flow rate of the liquid medium in the pipe. The current and voltage acquisition module acquires the voltage or current of the electromagnetic coil. The power output unit adjusts the power of the electromagnetic coil according to the data acquired by the data acquisition unit.

3. The electromagnetic servo oil temperature controller with dual temperature and dual control device according to claim 2, characterized in that: When the liquid flow rate acquisition module detects that the flow rate of the liquid medium in the pipe is lower than a preset threshold, the liquid flow rate acquisition module sends flow rate data to the control unit. After receiving the flow rate data acquired by the liquid flow rate acquisition module, the power output unit linearly reduces the heating power of the electromagnetic coil according to the proportion of the liquid flow rate.

4. The electromagnetic servo oil temperature controller with dual temperature and dual control device according to claim 3, characterized in that: When the liquid flow rate acquisition module detects that the flow rate of the liquid medium in the pipeline is zero, the liquid flow rate acquisition module sends flow rate data to the control unit. After receiving the flow rate data of zero flow rate of the liquid medium in the pipeline acquired by the liquid flow rate acquisition module, the power output unit triggers the shutdown protection.

5. A dual-temperature dual-control method for an electromagnetic servo oil temperature controller, characterized in that: The oil temperature controller includes at least two electromagnetic heating elements (2), and the two electromagnetic heating elements (2) are independently temperature controlled; The acquired signals include at least the temperature signal of the liquid medium at the pipe inlet and the real-time flow rate signal of the liquid medium inside the pipe. The power output is calculated based on the real-time flow rate of the liquid medium in the pipeline, the temperature of the liquid medium at the pipeline inlet, the preset target temperature of the liquid medium, and the specific heat capacity of the liquid medium itself. Adjust the amplitude of the high-frequency current in the electromagnetic coil according to the heating power.

6. The dual-temperature dual-control method for an electromagnetic servo oil temperature controller according to claim 5, characterized in that, The method further includes: The signal also includes the temperature signal of the liquid medium at the pipe outlet; The heating power of the electromagnetic coil is calculated based on the flow rate of the liquid medium in the pipeline, the temperature of the liquid medium at the pipeline inlet, the preset target temperature of the liquid medium, and the specific heat capacity of the liquid medium itself, as a heating power estimate. The power correction is calculated based on the difference between the temperature of the liquid medium at the pipeline outlet and the preset target temperature of the liquid medium. The power correction is then added to the estimated heating power to obtain the target heating power. Adjust the amplitude of the high-frequency current in the electromagnetic coil according to the target heating power.

7. The dual-temperature dual-control method for an electromagnetic servo oil temperature controller according to claim 6, characterized in that, The method further includes: The signal also includes the real-time current or voltage signal of the electromagnetic coil; The equivalent impedance of the load is calculated based on the real-time current or voltage signal of the electromagnetic coil to obtain the impedance matching result. The frequency of the alternating current of the electromagnetic coil is adjusted to make the circuit work in the resonant state. Adjust the high-frequency current amplitude of the electromagnetic coil based on the target heating power and impedance matching results.

8. The dual-temperature dual-control method for an electromagnetic servo oil temperature controller according to claim 5, characterized in that, The method further includes: When the real-time flow rate of the liquid medium in the pipe is lower than the preset threshold flow rate, the heating power of the electromagnetic coil is reduced linearly according to the flow rate ratio. When the real-time flow rate is zero, a shutdown protection mechanism is triggered.

9. A dual-temperature, dual-control platform for an electromagnetic servo oil temperature controller, characterized in that: The electromagnetic servo oil temperature controller dual-temperature dual-control platform includes a processor and a memory. The memory stores at least one instruction, at least one program, code set, or instruction set. The at least one instruction, the at least one program, and the code set are loaded and executed by the processor as described in any one of claims 5 to 8.

10. A computer-readable storage medium, characterized in that: The storage medium stores at least one instruction, at least one program, code set, or instruction set, wherein the at least one instruction, the at least one program, the code set, or the instruction set is loaded and executed by a processor to implement the dual-temperature dual-control method for an electromagnetic servo oil temperature controller as described in any one of claims 5 to 8.

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