An integrated design system and method for a transformer oil tank and a heat exchange device

Abstract

The present invention discloses an integrated design system and method for a transformer oil tank and a heat exchange device, relating to the technical field of transformers, including a main control system, a transformer oil tank structure design module, a heat dissipation system design module, and a temperature control system design module. The temperature control system design module is used for automatically controlling and adjusting the temperature inside the transformer oil tank structure. The temperature control system design module includes: temperature sensor arrangement, a control system, and an alarm system. By designing the temperature control system design module, the present invention realizes the functions of real-time monitoring of oil temperature data and dynamic adjustment of fans, solves the problem that the transformer overheats due to the inability to adjust the fan speed according to the oil temperature state, improves the system operation efficiency, reduces energy consumption, and prolongs the service life of transformer equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, and specifically to an integrated design system and method for a transformer oil tank and a heat exchange device. Background Art

[0002] In traditional designs, transformer oil tanks and heat exchange devices are often separately designed, with independent structures between the oil tank and the heat dissipation system, resulting in limited overall performance. In such designs, there are technical deficiencies in controlling the operating temperature of the transformer and dissipating heat from the oil, leading to a series of problems.

[0003] In traditional systems, temperature control is mainly achieved through simple heat dissipation devices and temperature sensors, lacking intelligent temperature regulation strategies. This makes it difficult to meet the requirements of real-time adjustment and efficient control under complex working conditions, and may cause problems such as overheating or overcooling of the transformer.

[0004] Therefore, it is necessary to develop a more advanced integrated design system to solve the technical deficiencies in traditional systems, improve temperature control, heat dissipation efficiency, the safety of pipeline connections, and overall safety protection levels, and achieve higher performance and reliability of the transformer oil tank and heat exchange device.

[0005] 1. Patent document CN115654770B discloses a temperature control system for utilizing the waste heat of a transformer for heating. The above patent realizes the effective utilization of the waste heat of the transformer, but the above patent cannot realize the functions of real-time monitoring of oil temperature data and dynamic adjustment of the fan.

[0006] 2. Patent document CN115863006B discloses an energy-saving transformer oil tank with less oil consumption. The above patent realizes the improvement of the heat exchange efficiency between the transformer oil and the core and the circulating pipe respectively, improving the cooling effect, but the above patent cannot realize the function of simulating and optimizing the pipeline to reduce fluid resistance.

[0007] 3. Patent document CN110993265B discloses an efficient heat dissipation transformer. The above patent realizes the acceleration of the heat exchange between the oil in the transformer oil tank and the air, significantly improving the heat dissipation efficiency of the transformer and greatly improving the cooling effect, but the above patent cannot realize the function of the radiator and the fan working together.

[0008] 4. Patent document CN103985511B discloses a heat exchanger for a transformer with an oil purifier. The above patent realizes good cooling effect, can also filter the transformer oil, protects the transformer, and the filter pipe can be removed for cleaning when the transformer oil tank is in use to ensure that the passage is not blocked, but the above patent cannot realize the functions of safety monitoring and protection of the system.

[0009] In summary, the above patent cannot achieve the functions of real-time monitoring of oil temperature data and dynamic adjustment of the fan, simulating and optimizing the pipeline to reduce fluid resistance, the collaborative work of the radiator and the fan, and the safety monitoring and protection of the system, resulting in the problems of being unable to monitor the dynamic adjustment of the transformer oil temperature in real time, high system energy consumption, inability to monitor and alarm for system overheating, and shortening of the equipment service life;

[0010] Therefore, this application proposes an integrated design system and method for a transformer oil tank and a heat exchange device that can achieve the functions of real-time monitoring of oil temperature data and dynamic adjustment of the fan, simulating and optimizing the pipeline to reduce fluid resistance, the collaborative work of the radiator and the fan, and the safety monitoring and protection of the system. Summary of the Invention

[0011] The purpose of the present invention is to provide an integrated design system and method for a transformer oil tank and a heat exchange device to solve the technical problems mentioned in the above background technology, namely, the inability to achieve the functions of real-time monitoring of oil temperature data and dynamic adjustment of the fan, simulating and optimizing the pipeline to reduce fluid resistance, the collaborative work of the radiator and the fan, and the safety monitoring and protection of the system, resulting in the inability to monitor the dynamic adjustment of the transformer oil temperature in real time, high system energy consumption, inability to monitor and alarm for system overheating, and shortening of the equipment service life.

[0012] To achieve the above purpose, the present invention provides the following technical solution: An integrated design system for a transformer oil tank and a heat exchange device, including a main control system, a transformer oil tank structure design module, a heat dissipation system design module, and a temperature control system design module. The temperature control system design module is used for automatically controlling and adjusting the temperature inside the transformer oil tank structure;

[0013] The temperature control system design module includes: temperature sensor arrangement, control system, and alarm system;

[0014] The temperature sensor arrangement is to arrange high-precision NTC thermistor temperature sensors at different positions inside the transformer oil tank, and the data is processed through the DSP chip built in the temperature sensor;

[0015] The control system includes an MPC algorithm and a PID control system. According to the data collected and processed by the temperature sensor, the MPC algorithm is used in combination with the PID control system to dynamically adjust the fan speed;

[0016] The alarm system is to design a dual-channel alarm system based on temperature and oil pressure, communicate with the main control system through the CAN bus for data transmission, and transmit alarm signals to the main control system in a timely manner when abnormal data occurs in temperature and oil pressure.

[0017] Preferably, the transformer oil tank design module is used to design a transformer oil tank that meets the requirements;

[0018] The transformer oil tank design module includes: material selection design, modular design, and sealing system design;

[0019] The material selection design means that 316L stainless steel is selected when producing the transformer oil tank, which has excellent corrosion resistance. During the production process, an advanced electrolytic polishing process is adopted to improve the surface smoothness, reduce the wetting angle, and slow down the liquid adhesion speed;

[0020] The modular design means that the components of the transformer oil tank are classified and designed modularly. At the same time, the finite element numerical analysis method is used to analyze the strength of the connection parts to ensure the stability of the module connections;

[0021] The sealing system design means that the main sealing ring is made of fluororubber, and the spare sealing ring is made of silicone rubber. Through precise dimension design and elastic modulus matching, the sealing effect is improved. A pressure leak tester is used to test the sealing performance of the transformer oil tank to ensure that the sealing performance meets the standards.

[0022] Preferably, the heat dissipation system design module is used to conduct detailed design on the heat exchange equipment heat dissipation system in the transformer;

[0023] The heat dissipation system design module includes: heat sink design, fan system design, and heat exchange surface increase design;

[0024] The heat sink design means that the heat sink is made of copper material. A micro-nano etching process is adopted on the surface of the heat sink to increase the surface area of the heat sink. CFD is used for numerical simulation to optimize the shape and arrangement of the heat sink fins to ensure the best heat conduction and heat dissipation effects;

[0025] The fan system design means that a fan with pulse width modulation control function is selected and installed in the transformer oil tank. Real-time data is collected through temperature sensors, and the main control system uses a PID control system to dynamically adjust the fan speed in real time according to the collected and processed data;

[0026] The heat exchange surface increase design means that through CFD simulation and implementation verification, the spiral design and corrugated structure are optimized to ensure that the oil can flow fully inside the heat exchanger, maximizing the heat exchange effect.

[0027] Preferably, the radiator layout design module is used to reasonably layout the radiators to enhance the heat dissipation effect;

[0028] The radiator layout design module includes: layout optimization design, cooling channel design, and module connection design;

[0029] The layout optimization design uses CFD simulation to optimize the layout of the radiator in the fuel tank. Through flow field analysis, the position and direction of the radiator are adjusted to ensure that the oil can form a uniform flow throughout the system, increasing the heat exchange efficiency;

[0030] The cooling channel design optimizes the shape and size of the cooling channels through CFD simulation to ensure the streamline of the oil flow in the cooling channels and reduce the flow resistance;

[0031] The module connection design uses threaded connections and sealing gaskets to ensure a tight and leak-free connection between the radiator and the fuel tank module.

[0032] Preferably, the cooling channel design also includes a pipeline connection and fluid dynamics design module. The pipeline connection and fluid dynamics design module is used to select the details of the cooling pipeline design and is connected to the alarm system in the temperature control system design module through the CAN bus;

[0033] The pipeline connection and fluid dynamics design module includes: fluid dynamics design, pipeline material selection, and leak prevention design;

[0034] The fluid dynamics design uses the CFD software ANSYS Fluent to simulate the flow of oil in the pipeline. By analyzing the oil flow velocity and flow pressure parameters in the pipeline, the pipeline design is optimized to reduce energy consumption;

[0035] The pipeline material selection uses 304 stainless steel as the pipeline material, which has high corrosion resistance and mechanical strength in the fuel tank;

[0036] The leak prevention design is to set a leak alarm at the key connection points between the transformer fuel tank and the pipeline. When oil leakage is detected, the leak alarm is connected to the alarm system through the CAN bus and immediately sends an alarm signal to the main control system. At the same time, the bottom of the fuel tank is designed as an oil leakage trough to collect the leaked oil.

[0037] Preferably, the transformer fuel tank structure design module also includes a safety protection module, which is used for real-time safety monitoring and emergency response of the transformer fuel tank;

[0038] The safety protection module includes: sensor integration design, over-temperature and over-pressure protection design, and emergency cut-off device;

[0039] The sensor integration design installs a micro pressure sensor and a liquid level sensor in the transformer fuel tank to monitor the oil pressure and liquid level height data information in the transformer fuel tank in real time;

[0040] The over-temperature and over-pressure protection design is to design hardware and software protection. Based on the data real-time monitored by the micro pressure sensor and temperature sensor, it realizes real-time protection of the oil temperature and oil pressure of the transformer tank, avoiding the danger of over-temperature and over-pressure in the transformer tank;

[0041] The emergency cut-off device is to integrate an emergency cut-off device in the transformer tank. When the data real-time monitored by the micro pressure sensor and temperature sensor exceeds the set threshold, the protection software sends an emergency signal to turn on the solenoid valve to quickly cut off the oil circuit and prevent the spread of the accident.

[0042] Preferably, a system stability module is also designed in the integrated design system. The system stability module is to conduct stability tests on the integrated system of the transformer tank and the heat exchange equipment;

[0043] The system stability module includes: vibration analysis, stability test and actual site verification;

[0044] Vibration analysis is to use FEA tools to conduct system vibration analysis. By improving the support structure of the radiator and the fan, the vibration amplitude is reduced;

[0045] The stability test is to conduct system stability tests in an engineering laboratory, simulate different working conditions and environmental conditions, and verify the stability and reliability of the system in different scenarios;

[0046] The actual site verification is to deploy the integrated system of the transformer tank and the heat exchange equipment in an actual engineering site for long-term operation tests, obtain data under real working conditions, and further verify the stability of the system.

[0047] Preferably, a performance optimization module is also designed in the radiator layout design module. The performance optimization module is used to verify the heat dissipation effect performance of the heat exchange equipment and optimize the system;

[0048] The performance optimization module includes: experimental verification and data simulation optimization;

[0049] Experimental verification is to conduct performance verification through an experimental bench, including temperature control accuracy, energy efficiency and heat dissipation effect, and optimize the system according to the experimental results;

[0050] Data simulation optimization is to use computer-aided design and numerical simulation software to conduct parameter optimization design of the system.

[0051] Preferably, the integrated design method includes the following steps:

[0052] S1. Requirement analysis and planning: Determine the working parameters of the transformer, including rated power, load fluctuation range and operating environment, and determine the performance requirements for the tank and heat exchange equipment, including heat dissipation efficiency, temperature control accuracy and safety;

[0053] S2. Detailed Design and Analysis: Select stainless steel material for the transformer, adopt modular design, analyze the functions and connection methods of each part, design a double-sealing system, select heat sink materials with high thermal conductivity, conduct CFD simulation, optimize the shape and layout of the heat sink, equip with a variable-speed fan, and design an intelligent control algorithm to automatically adjust the fan speed;

[0054] S3. Control System Integration: Deploy temperature sensors at key positions in the oil tank to accurately monitor the oil temperature, integrate the PID control system algorithm to adjust the fan speed in real time, design an alarm system to monitor high temperature and abnormal oil pressure conditions and issue alarms in a timely manner;

[0055] S4. System Verification and Optimization: Conduct finite element analysis to ensure the stable operation of the system in a vibration environment, conduct system stability tests under different working loads and environmental conditions, and deploy the system at the actual site to verify its stability under real working conditions.

[0056] Preferably, the integrated design method further includes the following steps:

[0057] S11. Define the basic structure and components of the oil tank and heat exchange equipment, formulate the basic principles of system integration, and consider modular design, connection methods, and communication protocols;

[0058] S21. Adopt spiral and corrugated designs, analyze the oil flow path, select 304 stainless steel as the pipeline material, conduct fluid dynamics analysis, optimize the pipeline design, integrate leak-proof design, and use an oil leakage alarm device;

[0059] S31. Integrate oil tank status sensors to monitor pressure, temperature, and liquid level parameters, design an over-temperature and over-pressure protection system, and integrate an emergency cut-off device;

[0060] S41. Verify the performance and mutual cooperation effect of each module design through experiments, optimize the system using numerical simulation tools, and conduct system comprehensive tests to ensure the coordinated operation of each module.

[0061] Compared with the prior art, the beneficial effects of the present invention are:

[0062] 1. By designing a temperature control system design module, the present invention realizes the functions of real-time monitoring of oil temperature data and dynamic adjustment of the fan, solves the problem of overheating of the transformer caused by the inability to adjust the fan speed according to the oil temperature state, improves the system operation efficiency, reduces energy consumption, and prolongs the service life of the transformer equipment;

[0063] 2. By designing a pipeline connection and fluid dynamics design module, the present invention realizes the function of simulating and optimizing the pipeline to reduce fluid resistance, improves the liquid flow efficiency, enhances the cooling effect, and reduces the system energy consumption;

[0064] 3. The present invention realizes the collaborative working function of the radiator and the fan through the design of a heat dissipation system design module, adjusts the heat dissipation effect as needed to reduce the oil temperature, optimizes the heat dissipation structure, and reduces the volume of the equipment.

[0065] 4. The present invention realizes the safety monitoring and protection function of the system through the design of a safety protection module, discovers and responds to system anomalies in a timely manner, ensures the safety of the working environment and equipment, prevents equipment damage, and reduces maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] Figure 1 It is a schematic diagram of the integrated design system of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0067] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0068] Embodiment 1

[0069] Please refer to Figure 1 , an embodiment provided by the present invention: an integrated design system of a transformer oil tank and a heat exchange device, including a main control system, a transformer oil tank structure design module, a heat dissipation system design module, and a temperature control system design module. The temperature control system design module is used for automatically controlling and adjusting the temperature inside the transformer oil tank structure;

[0070] The temperature control system design module includes: temperature sensor arrangement, control system, and alarm system;

[0071] The temperature sensor arrangement is to arrange high-precision NTC thermistor temperature sensors at different positions inside the transformer oil tank, and the data is processed through the DSP chip built in the temperature sensor;

[0072] The control system includes an MPC algorithm and a PID control system. According to the data collected and processed by the temperature sensor, the MPC algorithm is combined with the PID control system to dynamically adjust the fan speed;

[0073] The alarm system is to design a dual-channel alarm system based on temperature and oil pressure, communicate with the main control system through the CAN bus for data transmission, and transmit alarm signals to the main control system in a timely manner when abnormal data occurs in temperature and oil pressure;

[0074] Furthermore, a high-precision NTC thermistor temperature sensor is used to collect temperature data in real time. The analog signal output by the temperature sensor is conditioned through an analog circuit, including amplification, filtering, and denoising operations, to obtain accurate and stable temperature measurement values. The conditioned temperature data is provided as input to the control MPC algorithm in the temperature control system. The PID control system calculates the corresponding control output based on the current temperature and the set temperature, converts the output of the PID control system into an actual control instruction to output a PWM signal for adjusting the fan, and transmits the generated control instruction to the fan control circuit to adjust the fan speed. Based on the dual-channel alarm system for temperature and oil pressure, the alarm system transmits alarm signals to the main control system in a timely manner through the CAN bus when abnormal data occurs in temperature and oil pressure.

[0075] Embodiment 2

[0076] Please refer to Figure 1 , an embodiment provided by the present invention: an integrated design system for a transformer oil tank and a heat exchange device. The cooling channel design further includes a pipeline connection and fluid dynamics design module. The pipeline connection and fluid dynamics design module is used to select the details of the cooling pipeline design and is connected to the alarm system in the temperature control system design module through the CAN bus;

[0077] The pipeline connection and fluid dynamics design module includes: fluid dynamics design, pipeline material selection, and leak prevention design;

[0078] Fluid dynamics design is to simulate the flow of oil in the pipeline using the CFD software ANSYS Fluent, and optimize the pipeline design to reduce energy consumption by analyzing the oil flow velocity and flow pressure parameters in the pipeline;

[0079] Pipeline material selection is to use 304 stainless steel as the pipeline material, which has high corrosion resistance and mechanical strength in the oil tank;

[0080] Leak prevention design is to set a leak alarm at the key connection points between the transformer oil tank and the pipeline. When oil leakage is detected, the leak alarm is connected to the alarm system through the CAN bus and immediately sends an alarm signal to the main control system. At the same time, the bottom of the oil tank is designed as an oil leakage trough to collect the leaked oil;

[0081] Furthermore, select materials suitable for transformer oil and use 304 stainless steel to ensure that the inner wall of the pipeline is smooth, not prone to rust, and corrosion-resistant. At key connection points, use threaded connections and sealing gaskets to ensure tight connections and no leakage. Install an oil leakage alarm at key positions. When oil leakage is detected, an alarm signal is immediately sent to the main control system. Design the bottom of the fuel tank as an oil leakage trough to collect the leaked oil. Use ANSYS Fluent software to simulate the flow of liquid in the pipeline. Optimize the pipeline design by analyzing flow velocity and flow pressure parameters. According to the CFD simulation results, optimize the shape of the pipeline to ensure that the liquid forms a streamlined flow in the pipeline, reduce flow resistance, and improve the overall cooling effect. At the same time, optimize the shape and size of the cooling channels to ensure that the oil can flow fully in the pipeline and maximize the heat exchange effect.

[0082] Example 3

[0083] Please refer to Figure 1 , an embodiment provided by the present invention: an integrated design system for a transformer fuel tank and a heat exchange device, wherein the heat dissipation system design module is used for detailed design of the heat dissipation system of the heat exchange device in the transformer;

[0084] The heat dissipation system design module includes: heat sink design, fan system design, and heat exchange surface increase design;

[0085] The heat sink design means that the heat sink is made of copper material. The surface area of the heat sink is increased by using a micro-nano etching process on the surface of the heat sink. CFD is used for numerical simulation to optimize the shape and arrangement of the heat sink fins to ensure the best heat conduction and heat dissipation effects;

[0086] The fan system design means that a fan with pulse width modulation control function is selected and installed in the transformer fuel tank. Real-time data is collected through a temperature sensor, and the main control system uses a PID control system to adjust the fan speed in real time dynamically according to the collected and processed data;

[0087] The heat exchange surface increase design means that through CFD simulation and implementation verification, the spiral design and corrugated structure are optimized to ensure that the oil can flow fully inside the heat exchanger and maximize the heat exchange effect;

[0088] Furthermore, select radiator materials with high thermal conductivity, usually pure copper or aluminum alloy, to improve the heat dissipation efficiency. Optimize the shape of the radiator through calculations of heat conduction and fluid dynamics simulations to maximize the heat exchange surface area and enhance the heat dissipation effect. Considering space limitations, design a side-by-side matrix arrangement of radiators to ensure sufficient ventilation and heat dissipation. Select high-efficiency, low-noise fans and ensure stable fan performance during long-term operation. Determine the layout position of the fans through computational fluid dynamics and heat conduction simulations so that they can cover the entire radiator surface to improve the heat dissipation effect. Integrate an intelligent fan PID control system and use real-time data collected by temperature sensors to adjust the fan speed in real time to ensure appropriate heat dissipation under different working loads. Optimize the spiral design and corrugated structure through CFD simulations and implementation verification to ensure that the oil can flow fully inside the heat exchanger and maximize the heat exchange effect.

[0089] Example 4

[0090] Please refer to Figure 1 , an embodiment provided by the present invention: an integrated design system for a transformer oil tank and a heat exchange device. The transformer oil tank structure design module further includes a safety protection module, and the safety protection module is used for real-time safety monitoring and emergency response of the transformer oil tank;

[0091] The safety protection module includes: sensor integrated design, over-temperature and over-pressure protection design, and emergency cut-off device;

[0092] The sensor integrated design means that a micro pressure sensor and a liquid level sensor are installed inside the transformer oil tank to monitor the oil pressure and liquid level height data information inside the transformer oil tank in real time;

[0093] The over-temperature and over-pressure protection design means designing hardware and software protection. Through the data monitored in real time by the micro pressure sensor and the temperature sensor, the transformer oil tank realizes real-time protection of the oil temperature and oil pressure to avoid the danger of over-temperature and over-pressure in the transformer oil tank;

[0094] The emergency cut-off device means integrating an emergency cut-off device inside the transformer oil tank. When the data monitored in real time by the micro pressure sensor and the temperature sensor exceeds the set threshold, the protection software issues an emergency signal to turn on the solenoid valve to quickly cut off the oil circuit and prevent the spread of the accident;

[0095] Furthermore, various sensors are arranged at key positions in the system, including pressure sensors and liquid level sensors, to collect sensor data in real time and transmit it to the safety protection module for processing. Safety thresholds for each sensor are set. When the sensor data exceeds the set range, corresponding safety protection measures are triggered. State analysis is carried out in the safety protection module to monitor and analyze the sensor data in real time to determine whether the system is in a normal working state. When the temperature or pressure exceeds the set safety threshold, protection measures are immediately taken, such as reducing the system load and cutting off the power supply, to prevent the system from overheating or overpressuring. The liquid level sensor data is monitored in real time. When the liquid level rises or drops abnormally, corresponding measures are taken, such as cutting off the liquid supply and issuing an alarm, to prevent liquid leakage or lack of liquid. In case of major failures or dangerous situations, an emergency shutdown measure is executed to cut off the system power supply, ensure the safety of personnel and equipment, and connect the emergency signal to the solenoid valve to quickly cut off the oil circuit to prevent the spread of accidents.

[0096] Embodiment 5

[0097] Please refer to Figure 1 , an embodiment provided by the present invention: an integrated design system of a transformer oil tank and a heat exchange device. A system stability module is also designed in the integrated design system. The system stability module conducts stability tests on the integrated system of the transformer oil tank and the heat exchange device;

[0098] The system stability module includes: vibration analysis, stability test, and actual site verification;

[0099] Vibration analysis is to use FEA tools to conduct system vibration analysis and reduce the vibration amplitude by improving the support structures of the radiator and the fan;

[0100] The stability test is to conduct system stability tests in an engineering laboratory, simulate different working conditions and environmental conditions, and verify the stability and reliability of the system under different scenarios;

[0101] The actual site verification is to deploy the integrated system of the transformer oil tank and the heat exchange device in an actual engineering site for long-term operation tests, obtain data under real working conditions, and further verify the stability of the system;

[0102] Furthermore, conduct a detailed analysis of the system's load, including normal operating loads and possible peak loads. Consider the system's operation under different environmental conditions, such as temperature, humidity, and altitude factors. Use the FEA tool model for dynamic simulation to analyze the system's response characteristics under different operating loads and environments. Improve the support structures of the radiator and fan to reduce the vibration amplitude. Optimize the performance of the control system by adjusting the control algorithm parameters to ensure that the system can adjust quickly and stably under different operating loads. Perform anti-shake processing on the sensor signals to prevent system instability caused by large parameter errors due to noise or jitter. Adjust the system parameters, such as the parameters of the control algorithm and the anti-vibration device, according to the actual site verification results to further improve the system's stability.

[0103] Working principle: First, the temperature control system design module monitors the oil temperature in real time through temperature sensors arranged in the oil tank and adjusts the speed of the fan through the PID control system algorithm to maintain the oil temperature within a safe range. The heat dissipation system design module includes a radiator and a fan. Through fluid dynamics design and material optimization, it ensures that the system can dissipate heat efficiently. Under high-temperature conditions, the fan speeds up and the radiator increases its surface area to effectively reduce the oil temperature.

[0104] Then, the pipeline connection and fluid dynamics design module is responsible for ensuring the smooth flow of oil in the system. Use CFD software for fluid dynamics simulation to optimize the shape and size of the pipeline, ensure that the liquid forms a streamlined flow in the pipeline, reduce the flow resistance, and improve the cooling effect. The pipeline connection design uses corrosion-resistant materials and tight seals to prevent leakage. At the same time, install oil leakage alarms at key positions to ensure that the system operates within the normal range.

[0105] Finally, the safety protection module monitors the system status in real time through sensors. When parameters such as temperature, pressure, and liquid level exceed the set thresholds, trigger corresponding safety protection measures, such as cutting off the power supply and issuing an alarm. The system stability module ensures the stable operation of the system under different load and environmental conditions through dynamic simulation and optimization of the control system. The working principle of the entire system is a collaborative process, and through the close cooperation of different modules, it realizes the comprehensive management and protection of the transformer oil tank and heat exchange equipment.

[0106] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. An integrated design system for a transformer oil tank and a heat exchange device, characterized in that: It includes a main control system, a transformer oil tank structure design module, a heat dissipation system design module and a temperature control system design module, wherein the temperature control system design module is used to automatically control and adjust the temperature in the transformer oil tank structure; The temperature control system design module includes: temperature sensor layout, control system and alarm system; The temperature sensor arrangement is to arrange high-precision NTC thermistor temperature sensors at different positions in the transformer oil tank, and perform data processing through the built-in DSP chip of the temperature sensor; The control system includes an MPC algorithm and a PID control system. According to the data collected and processed by the temperature sensor, the MPC algorithm is combined with the PID control system to dynamically adjust the fan speed; The alarm system is a dual-channel alarm system based on temperature and oil pressure, which communicates with the main control system through the CAN bus for data transmission, and transmits alarm signals to the main control system in a timely manner when abnormal data of temperature and oil pressure appear; The radiator layout design module is used to reasonably layout the radiator and enhance the heat dissipation effect; The radiator layout design module includes: layout optimization design, cooling channel design and module connection design; Layout optimization design uses CFD simulation to optimize the layout of the radiator in the oil tank. Through flow field analysis, the position and direction of the radiator are adjusted to ensure that the oil can form a uniform flow in the entire system and increase the heat exchange efficiency. Cooling channel design is to optimize the shape and size of the cooling channel through CFD simulation to ensure the streamlined flow of oil in the cooling channel and reduce flow resistance; The module connection design uses threaded connection and sealing gasket to ensure that the connection between the radiator and the oil tank module is tight and leak-free; The cooling channel design also includes a pipeline connection and fluid dynamics design module, which is used to select detailed design of the cooling pipeline and is connected to the alarm system in the temperature control system design module through the CAN bus; The pipeline connection and fluid dynamics design module includes: fluid dynamics design, pipeline material selection and leak-proof design; Fluid dynamics design uses CFD software ANSYS Fluent to simulate the flow of oil in the pipeline, and optimizes pipeline design to reduce energy consumption by analyzing the oil flow rate and flow pressure parameters in the pipeline; The pipe material selection is to use 304 stainless steel as the pipe material, which has high corrosion resistance and mechanical strength in the oil tank; The anti-leakage design is to set an oil leakage alarm at the key connection point between the transformer oil tank and the pipeline. When oil leakage is detected, the oil leakage alarm is connected to the alarm system through the CAN bus and immediately sends an alarm signal to the main control system. At the same time, the bottom of the oil tank is designed as an oil leakage tank to collect the leaked oil. The transformer oil tank design module is used to design a transformer oil tank that meets the requirements; The transformer tank design module includes: material selection design, modular design and sealing system design; Material selection design: 316L stainless steel is selected when producing transformer oil tank, which has excellent corrosion resistance. Advanced electrolytic polishing process is adopted in the production process to improve surface smoothness, reduce wetting angle and slow down liquid adhesion speed. Modular design means modular classification design and installation of transformer oil tank components, and the use of finite element numerical analysis methods to perform strength analysis on the connection parts to ensure the stability of the module connection; The sealing system design uses fluororubber as the main sealing ring and silicone rubber as the backup sealing ring. The sealing effect is improved through precise size design and elastic modulus matching. The transformer oil tank is tested for sealing performance using a pressure leak tester to ensure that the sealing performance meets the standards. The heat dissipation system design module is used to carry out detailed design of the heat dissipation system of the heat exchange equipment in the transformer; The heat dissipation system design module includes: heat sink design, fan system design and heat exchange surface increase design; The heat sink design is to use copper material to make the heat sink, and use micro-nano etching process to increase the surface area of ​​the heat sink. CFD is used for numerical simulation to optimize the shape and arrangement of the heat sink fins to ensure the best heat conduction and heat dissipation effect. The fan system design is to select a fan with pulse width modulation control function and install it in the transformer tank. The temperature sensor collects real-time data, and the main control system uses the PID control system to dynamically adjust the fan speed in real time based on the collected and processed data. The heat exchange surface increase design is verified through CFD simulation and implementation, optimizing the spiral design and corrugated structure to ensure that the oil can flow fully inside the heat exchanger and maximize the heat exchange effect; The transformer oil tank structure design module also includes a safety protection module, which is used to perform real-time safety monitoring and emergency response on the transformer oil tank; The safety protection module includes: sensor integration design, over-temperature and over-pressure protection design and emergency cut-off device; The sensor integration design is to install a micro pressure sensor and a liquid level sensor in the transformer tank to monitor the oil pressure and liquid level data in the transformer tank in real time; Over-temperature and over-pressure protection design refers to the design of hardware and software protection. Through the real-time monitoring data of micro pressure sensors and temperature sensors, the oil temperature and oil pressure of the transformer tank can be protected in real time to avoid the danger of over-temperature and over-pressure in the transformer tank. The emergency cut-off device is integrated in the transformer mailbox. When the data monitored in real time by the micro pressure sensor and temperature sensor exceeds the set threshold, the protection software sends an emergency signal to connect the solenoid valve to quickly cut off the oil circuit to prevent the accident from spreading. The integrated design system is also designed with a system stability module, which performs stability testing on the integrated system of the transformer oil tank and the heat exchange equipment; The system stability module includes: vibration analysis, stability testing and actual site verification; Vibration analysis is to use FEA tools to perform system vibration analysis and reduce the vibration amplitude by improving the support structure of the radiator and fan; Stability testing is to conduct system stability testing in the engineering laboratory, simulating different working conditions and environmental conditions to verify the stability and reliability of the system in different scenarios; Actual site verification is to deploy the integrated system of transformer oil tank and heat exchange equipment in the actual project site for long-term operation test, obtain data under real working conditions, and further verify the stability of the system; The integrated design system is also designed with a performance optimization module, which is used to verify the heat dissipation performance of the heat exchange equipment and optimize the system; The performance optimization module includes: experimental verification and data simulation optimization; Experimental verification is to verify the performance through the test bench, including temperature control accuracy, energy efficiency and heat dissipation effect, and optimize the system according to the experimental results; Data simulation optimization is to use computer-aided design and numerical simulation software to optimize the system parameters.

2. A method for integrated design of a transformer oil tank and a heat exchange device, applicable to the integrated design system of a transformer oil tank and a heat exchange device according to claim 1, characterized in that: The integrated design method comprises the following steps: S1. Demand analysis and planning: Determine the operating parameters of the transformer, including rated power, load fluctuation range and operating environment, and determine the performance requirements for the oil tank and heat exchange equipment, including heat dissipation efficiency, temperature control accuracy and safety; S2. Detailed design and analysis: Select stainless steel material for transformer, adopt modular design, analyze the functions and connection methods of each part, design double sealing system, select heat sink material with high thermal conductivity, perform CFD simulation, optimize the shape and layout of heat sink, equip with adjustable speed fan, and design intelligent control algorithm to automatically adjust fan speed; S3, control system integration: deploy temperature sensors at key locations in the oil tank to accurately monitor the oil temperature, integrate PID control system algorithms to adjust the fan speed in real time, design an alarm system to monitor excessive temperature and abnormal oil pressure, and issue alarms in a timely manner; S4. System verification and optimization: Conduct finite element analysis to ensure the system operates stably under vibration conditions, perform system stability tests under different workloads and environmental conditions, and deploy the system in actual sites to verify its stability under real working conditions.

3. The integrated design method of a transformer oil tank and a heat exchange device according to claim 2, characterized in that: The integrated design method further comprises the following steps: S11. Define the basic structure and components of the oil tank and heat exchange equipment, formulate the basic principles of system integration, and consider modular design, connection methods and communication protocols; S21, adopt spiral and corrugated design, analyze the oil flow path, select 304 stainless steel as the pipeline material, conduct fluid dynamics analysis, optimize pipeline design, integrate leak-proof design, and use oil leak alarm device; S31, integrated fuel tank status sensor, monitoring pressure, temperature, liquid level parameters, design over-temperature and over-pressure protection system, integrated emergency cut-off device; S41. Verify the performance and mutual cooperation of each module design through experiments, optimize the system using numerical simulation tools, and conduct comprehensive system testing to ensure that each module works together.

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