Heat dissipation method for high-power device in logging instrument

Abstract

The invention discloses a heat dissipation method for a high-power device in a logging instrument, and relates to the technical field of heat dissipation of logging instruments. The heat dissipation management system is realized based on a heat dissipation management system, and the heat dissipation management system comprises a heat conduction module which adopts a heat pipe or a heat plate made of a high-heat-conductivity-coefficient material and is used for rapidly conducting heat generated by a high-power device to a heat dissipation module; and the heat dissipation module comprises a plurality of heat dissipation fins and / or fans which work in parallel, the heat dissipation fins improve the heat dissipation efficiency by increasing the heat dissipation area, and the fans enhance air flow through forced convection to promote heat exchange. The heat pipe or the heat plate made of the high-heat-conductivity-coefficient material is adopted, heat is quickly conducted to the heat dissipation module, and accumulation of the heat at a source is effectively reduced; the control module dynamically adjusts a heat dissipation strategy according to real-time temperature monitoring data, such as the fan rotating speed and fluid circulation, and it is ensured that the heat dissipation effect is matched with the actual requirement.

Description

Technical Field

[0001] The invention relates to the technical field of heat dissipation of well logging instruments, and in particular to a heat dissipation method for high-power devices in well logging instruments. Background Art

[0002] In logging instruments, how to perform thermal management on high-power devices is an issue that needs to be considered. For some devices, if the high heat generated during operation is not handled promptly and effectively, it will not only reduce the performance of the device and shorten its service life, but may also cause equipment failure or even damage. Traditional heat dissipation methods are often difficult to meet the needs of high performance and high reliability. With the continuous advancement of logging technology, the requirements for heat dissipation systems are also increasing, especially for instruments working in high temperature environments, where heat dissipation is particularly critical.

[0003] After searching, the Chinese patent application number CN201610139412.2 discloses a method for dissipating heat of high-power devices in logging instruments, including sequentially installing the substrate, high-power devices and radiator on the frame in the logging instrument, making the radiator completely contact with the casing of the logging instrument, using the thermal capacity of the frame and the casing of the logging instrument to absorb the heat emitted by the high-power device, and conducting the heat generated by the high-power device to the downhole environment through the radiator, the frame and the casing of the logging instrument, and using the formation fluid (oil or oil-water mixture) flowing through the surface of the casing of the logging instrument to take away the heat generated by the high-power device and reduce the operating temperature of the high-power device. The heat dissipation method in the above patent has the following shortcomings: it mainly relies on the heat conduction of the physical structure and lacks the ability of dynamic adjustment. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a heat dissipation method for high-power devices in a well logging instrument.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A heat dissipation method for high-power devices in a well logging instrument is implemented based on a heat dissipation management system, which includes:

[0007] Heat conduction module: A heat pipe or heat plate made of high thermal conductivity material is used to quickly conduct the heat generated by high-power devices to the heat dissipation module;

[0008] Heat dissipation module: contains multiple heat sinks and / or fans working in parallel. The heat sink improves the heat dissipation efficiency by increasing the heat dissipation area, and the fan enhances air flow and promotes heat exchange through forced convection.

[0009] Temperature monitoring module: built-in temperature sensor, real-time monitoring of the temperature of high-power devices and heat dissipation modules, and feedback of data to the control module;

[0010] Control module: dynamically adjusts the working state of the heat dissipation module according to the data provided by the temperature monitoring module;

[0011] Fluid circulation module: When the ambient temperature is high or the heat dissipation demand is large, the fluid circulation system is started to use the coolant to remove more heat through the microchannels inside the radiator;

[0012] In addition, the following cooling measures are included:

[0013] Coating high emissivity materials on the surface of the heat sink or installing heat radiators to increase the proportion of heat dissipated to the environment by radiation;

[0014] By utilizing the Seebeck effect, part of the waste heat is converted into electrical energy for use by other low-power components of the logging instrument, thus achieving energy recovery.

[0015] Preferably: in the heat dissipation method, the control strategy based on the thermoelectric cooling sheet is based on the Seebeck effect, and the cooling capacity is changed by adjusting the current size, and the relationship is expressed as:

[0016]

[0017] Where Q is the cooling capacity, a is the Seebeck coefficient, I is the current, T c and T h are the absolute temperatures of the hot and cold ends respectively, R is the resistance, and K is the thermal conductivity.

[0018] Preferably, the specific implementation steps of the heat dissipation method include:

[0019] S1: The temperature monitoring module monitors the temperature of each component in real time and feeds the data back to the control module;

[0020] S2: The control module dynamically adjusts the cooling strategy based on the monitoring data;

[0021] S3: Rapidly remove the heat generated by high-power devices through the heat conduction module;

[0022] S4: The heat dissipation module performs heat dissipation operations according to the instructions of the control module, including natural heat dissipation of the heat sink and forced convection heat dissipation of the fan;

[0023] S5: When the temperature exceeds the set value, the thermal radiation enhancement module and the thermoelectric conversion module are started to optimize the heat dissipation effect and realize energy recovery.

[0024] Preferably, the heat dissipation module comprises:

[0025] Passive cooling unit: contains multiple heat sinks, which improves the efficiency of natural heat dissipation by increasing the heat dissipation area;

[0026] Active cooling unit: contains a fan array that enhances air flow and promotes heat exchange through forced convection;

[0027] Variable fin unit: automatically adjusts the fin spacing based on temperature feedback to optimize air flow. This solution can be implemented using existing technology or by drawing on the principle of electric blinds, which will not be elaborated here.

[0028] Preferably: the temperature monitoring module includes:

[0029] Temperature sensing unit: multiple built-in temperature sensors to monitor the temperature of high-power devices and heat dissipation modules in real time;

[0030] Data analysis unit: analyzes temperature data, predicts temperature trends, and provides decision support for the control module.

[0031] Preferably: the control module includes:

[0032] Decision-making processing unit: formulates heat dissipation strategies based on temperature monitoring data;

[0033] Communication coordination unit: communicates with other modules, issues control instructions, and coordinates the operation of the entire system.

[0034] Preferably, the fluid circulation module comprises:

[0035] Circulation pump unit: drives the coolant to circulate in the system to enhance the heat dissipation effect;

[0036] Heat exchange unit: uses liquid cooling technology to remove heat through micro channels inside the radiator.

[0037] Preferably, the following measures are also included:

[0038] Integrated phase change materials, which can absorb or release a large amount of heat at a specific temperature, are used to balance temperature fluctuations in a short period of time and ensure system stability;

[0039] Based on the intelligent prediction module, the machine learning algorithm is used to predict the future temperature change trend according to the historical temperature data and working environment parameters, and adjust the cooling strategy in advance;

[0040] Based on the fault diagnosis module, the health status of the cooling system is automatically checked regularly to identify potential problems and issue warnings, thus simplifying the maintenance process and reducing manual intervention.

[0041] Preferably: the intelligent prediction module includes:

[0042] Data processing unit: uses machine learning algorithms to predict future temperature changes based on historical data;

[0043] Prediction model unit: establish dynamic models, adjust prediction parameters in real time, and improve prediction accuracy.

[0044] Preferably: the maintenance and fault diagnosis module includes:

[0045] Self-check unit: Regularly and automatically check the health of the cooling system and find potential problems;

[0046] Diagnosis and early warning unit: Analyze the cause of the failure, provide maintenance suggestions, and issue early warning notifications.

[0047] The beneficial effects of the present invention are:

[0048] 1. The present invention uses a heat pipe or heat plate made of high thermal conductivity material to quickly transfer heat to the heat dissipation module, effectively reducing the accumulation of heat at the source; the control module dynamically adjusts the heat dissipation strategy, such as fan speed and fluid circulation, according to real-time temperature monitoring data to ensure that the heat dissipation effect matches the actual needs.

[0049] 2. The present invention utilizes the Seebeck effect to convert waste heat into electrical energy for use by other components of the instrument, thereby realizing energy recycling and reducing energy consumption; by integrating phase change materials to balance temperature fluctuations, as well as intelligent prediction modules and fault diagnosis modules, the system can adapt to different working environments and simplify the maintenance process. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 The present invention is a flow chart of a method for heat dissipation of high-power devices in a well logging instrument. DETAILED DESCRIPTION

[0051] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0052] Embodiment 1:

[0053] A heat dissipation method for high-power devices in a well logging instrument is implemented based on a heat dissipation management system, which includes:

[0054] Heat conduction module: A heat pipe or heat plate made of high thermal conductivity material is used to quickly conduct the heat generated by high-power devices to the heat dissipation module;

[0055] Heat dissipation module: contains multiple heat sinks and / or fans working in parallel. The heat sink improves the heat dissipation efficiency by increasing the heat dissipation area, and the fan enhances air flow and promotes heat exchange through forced convection.

[0056] Temperature monitoring module: built-in temperature sensor, real-time monitoring of the temperature of high-power devices and heat dissipation modules, and feedback of data to the control module;

[0057] Control module: dynamically adjusts the working state of the heat dissipation module according to the data provided by the temperature monitoring module, such as adjusting the fan speed, starting additional heat dissipation devices, etc.;

[0058] Fluid circulation module: When the ambient temperature is high or the heat dissipation demand is large, the fluid circulation system is started to use the coolant to remove more heat through the microchannels inside the radiator;

[0059] In addition, the following cooling measures are included:

[0060] Coating high emissivity materials on the surface of the heat sink or installing heat radiators to increase the proportion of heat dissipated to the environment by radiation;

[0061] By utilizing the Seebeck effect, part of the waste heat is converted into electrical energy for use by other low-power components of the logging instrument, thus achieving energy recovery.

[0062] Among them, in the heat dissipation method, the control strategy based on the thermoelectric cooling sheet is based on the Seebeck effect, and the cooling capacity is changed by adjusting the current size. The relationship is expressed as:

[0063]

[0064] Where Q is the cooling capacity, a is the Seebeck coefficient, I is the current, T c and T h are the absolute temperatures of the hot and cold ends respectively, R is the resistance, and K is the thermal conductivity.

[0065] The specific implementation steps include:

[0066] S1: The temperature monitoring module monitors the temperature of each component in real time and feeds the data back to the control module;

[0067] S2: The control module dynamically adjusts the cooling strategy based on the monitoring data, such as adjusting the fan speed, starting the fluid circulation, etc.

[0068] S3: Rapidly remove the heat generated by high-power devices through the heat conduction module;

[0069] S4: The heat dissipation module performs heat dissipation operations according to the instructions of the control module, including natural heat dissipation of the heat sink and forced convection heat dissipation of the fan;

[0070] S5: When the temperature exceeds the set value, the thermal radiation enhancement module and the thermoelectric conversion module are started to optimize the heat dissipation effect and realize energy recovery.

[0071] Wherein, the heat dissipation module comprises:

[0072] Passive cooling unit: contains multiple heat sinks, which improves the efficiency of natural heat dissipation by increasing the heat dissipation area;

[0073] Active cooling unit: contains a fan array that enhances air flow and promotes heat exchange through forced convection;

[0074] Variable Fin Unit: Automatically adjusts fin spacing based on temperature feedback to optimize air flow.

[0075] Wherein, the temperature monitoring module comprises:

[0076] Temperature sensing unit: multiple built-in temperature sensors to monitor the temperature of high-power devices and heat dissipation modules in real time;

[0077] Data analysis unit: analyzes temperature data, predicts temperature trends, and provides decision support for the control module.

[0078] Wherein, the control module comprises:

[0079] Decision-making processing unit: formulates heat dissipation strategies based on temperature monitoring data;

[0080] Communication coordination unit: communicates with other modules, issues control instructions, and coordinates the operation of the entire system.

[0081] Wherein, the fluid circulation module comprises:

[0082] Circulation pump unit: drives the coolant to circulate in the system to enhance the heat dissipation effect;

[0083] Heat exchange unit: uses liquid cooling technology to remove heat through micro channels inside the radiator.

[0084] Embodiment 2:

[0085] A heat dissipation method for high-power devices in a well logging instrument is implemented based on a heat dissipation management system, which includes:

[0086] Heat conduction module: A heat pipe or heat plate made of high thermal conductivity material is used to quickly conduct the heat generated by high-power devices to the heat dissipation module;

[0087] Heat dissipation module: contains multiple heat sinks and / or fans working in parallel. The heat sink improves the heat dissipation efficiency by increasing the heat dissipation area, and the fan enhances air flow and promotes heat exchange through forced convection.

[0088] Temperature monitoring module: built-in temperature sensor, real-time monitoring of the temperature of high-power devices and heat dissipation modules, and feedback of data to the control module;

[0089] Control module: dynamically adjusts the working state of the heat dissipation module according to the data provided by the temperature monitoring module, such as adjusting the fan speed, starting additional heat dissipation devices, etc.;

[0090] Fluid circulation module: When the ambient temperature is high or the heat dissipation demand is large, the fluid circulation system is started to use the coolant to remove more heat through the microchannels inside the radiator;

[0091] It also includes the following measures:

[0092] Integrated phase change material (PCM), which can absorb or release a large amount of heat at a specific temperature, is used to balance temperature fluctuations in a short period of time and ensure system stability;

[0093] Based on the intelligent prediction module, the machine learning algorithm is used to predict the future temperature change trend according to the historical temperature data and working environment parameters, and adjust the cooling strategy in advance;

[0094] Based on the fault diagnosis module, the health status of the cooling system is automatically checked regularly to identify potential problems and issue warnings, thus simplifying the maintenance process and reducing manual intervention.

[0095] Wherein, the intelligent prediction module includes:

[0096] Data processing unit: uses machine learning algorithms to predict future temperature changes based on historical data;

[0097] Prediction model unit: establish dynamic models, adjust prediction parameters in real time, and improve prediction accuracy.

[0098] Wherein, the maintenance and fault diagnosis module includes:

[0099] Self-check unit: Regularly and automatically check the health of the cooling system and find potential problems;

[0100] Diagnosis and early warning unit: Analyze the cause of the failure, provide maintenance suggestions, and issue early warning notifications.

[0101] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A method for heat dissipation of high-power devices in a well logging instrument, characterized in that: It is implemented based on a heat dissipation management system, which includes: Heat conduction module: A heat pipe or heat plate made of high thermal conductivity material is used to quickly conduct the heat generated by high-power devices to the heat dissipation module; Heat dissipation module: contains multiple heat sinks and / or fans working in parallel. The heat sink improves the heat dissipation efficiency by increasing the heat dissipation area, and the fan enhances air flow and promotes heat exchange through forced convection. Temperature monitoring module: built-in temperature sensor, real-time monitoring of the temperature of high-power devices and heat dissipation modules, and feedback of data to the control module; Control module: dynamically adjusts the working state of the heat dissipation module according to the data provided by the temperature monitoring module; Fluid circulation module: When the ambient temperature is high or the heat dissipation demand is large, the fluid circulation system is started to use the coolant to remove more heat through the microchannels inside the radiator; In addition, the following cooling measures are included: Coating high emissivity materials on the surface of the heat sink or installing heat radiators to increase the proportion of heat dissipated to the environment by radiation; By utilizing the Seebeck effect, part of the waste heat is converted into electrical energy for use by other low-power components of the logging instrument, thus achieving energy recovery.

2. The heat dissipation method for high-power devices in a well logging instrument according to claim 1, characterized in that: In the heat dissipation method, the control strategy based on the thermoelectric cooling sheet is based on the Seebeck effect, and the cooling capacity is changed by adjusting the current size. The relationship is expressed as: Where Q is the cooling capacity, a is the Seebeck coefficient, I is the current, T c and T h are the absolute temperatures of the hot and cold ends respectively, R is the resistance, and K is the thermal conductivity.

3. The heat dissipation method for high-power devices in a well logging instrument according to claim 1, characterized in that: The specific implementation steps of the heat dissipation method include: S1: The temperature monitoring module monitors the temperature of each component in real time and feeds the data back to the control module; S2: The control module dynamically adjusts the cooling strategy based on the monitoring data; S3: Rapidly remove the heat generated by high-power devices through the heat conduction module; S4: The heat dissipation module performs heat dissipation operations according to the instructions of the control module, including natural heat dissipation of the heat sink and forced convection heat dissipation of the fan; S5: When the temperature exceeds the set value, the thermal radiation enhancement module and the thermoelectric conversion module are started to optimize the heat dissipation effect and realize energy recovery.

4. The heat dissipation method for high-power devices in a well logging instrument according to claim 1, characterized in that: The heat dissipation module comprises: Passive cooling unit: contains multiple heat sinks, which improves the efficiency of natural heat dissipation by increasing the heat dissipation area; Active cooling unit: contains a fan array that enhances air flow and promotes heat exchange through forced convection; Variable Fin Unit: Automatically adjusts fin spacing based on temperature feedback to optimize air flow.

5. The heat dissipation method for high-power devices in a well logging instrument according to claim 1, characterized in that: The temperature monitoring module comprises: Temperature sensing unit: multiple built-in temperature sensors to monitor the temperature of high-power devices and heat dissipation modules in real time; Data analysis unit: analyzes temperature data, predicts temperature trends, and provides decision support for the control module.

6. The heat dissipation method for high-power devices in a well logging instrument according to claim 1, characterized in that: The control module comprises: Decision-making processing unit: formulates heat dissipation strategies based on temperature monitoring data; Communication coordination unit: communicates with other modules, issues control instructions, and coordinates the operation of the entire system.

7. The heat dissipation method for high-power devices in a well logging instrument according to claim 1, characterized in that: The fluid circulation module comprises: Circulation pump unit: drives the coolant to circulate in the system to enhance the heat dissipation effect; Heat exchange unit: uses liquid cooling technology to remove heat through micro channels inside the radiator.

8. The heat dissipation method for high-power devices in a well logging instrument according to claim 1, characterized in that: It also includes the following measures: Integrated phase change materials, which can absorb or release a large amount of heat at a specific temperature, are used to balance temperature fluctuations in a short period of time and ensure system stability; Based on the intelligent prediction module, the machine learning algorithm is used to predict the future temperature change trend according to the historical temperature data and working environment parameters, and adjust the cooling strategy in advance; Based on the fault diagnosis module, the health status of the cooling system is automatically checked regularly to identify potential problems and issue warnings, thus simplifying the maintenance process and reducing manual intervention.

9. The heat dissipation method for high-power devices in a well logging instrument according to claim 8, characterized in that: The intelligent prediction module includes: Data processing unit: uses machine learning algorithms to predict future temperature changes based on historical data; Prediction model unit: establish dynamic models, adjust prediction parameters in real time, and improve prediction accuracy.

10. The heat dissipation method for high-power devices in a well logging instrument according to claim 8, characterized in that: The maintenance and fault diagnosis module includes: Self-check unit: Regularly and automatically check the health of the cooling system to find potential problems; Diagnosis and early warning unit: Analyze the cause of the failure, provide maintenance suggestions, and issue early warning notifications.

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