Heat pipe type air conditioning system for mine

Abstract

The invention discloses a heat pipe type air conditioning system for a mine, which comprises a heat source collecting assembly, a heat pipe collecting assembly, a heat pipe collecting assembly, a heat pipe collecting assembly and a heat pipe collecting assembly, and is characterized in that the heat source collecting assembly comprises a high-temperature electromechanical equipment heat-dissipation cover provided with nano-fluid heat pipes connected with pulsating heat pipe groups; the medium-temperature mine water heat exchanger and the low-temperature air return channel heat exchange plate are connected with a phase change energy storage tank through a pulsating heat pipe group; the wellhead anti-freezing assembly comprises a radiating fin group which is connected with the nanofluid heat pipe; the underground temperature control assembly comprises an absorption heat pump, a radiant panel, a dehumidification fresh air handling unit and a frequency conversion fan, the input end of the absorption heat pump is connected with the nanofluid heat pipe and the phase change energy storage tank, the output end of the absorption heat pump is connected with the radiant panel, the dehumidification fresh air handling unit and the cooling fin set, the input end of the frequency conversion fan is connected with the radiant panel and the dehumidification fresh air handling unit, and the output end of the frequency conversion fan is led into the underground roadway; the intelligent control assembly comprises a controller which collects data of all the sensors in real time and achieves control over all the assemblies. According to the system, waste heat recovery and air conditioning are coordinated, mine safety is guaranteed, and energy consumption is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of mine air conditioning, and in particular relates to a heat pipe air conditioning system for mines. Background Art

[0002] The mine air conditioning system is a key infrastructure to ensure safe production in mines. At present, most mines generally adopt a centralized ventilation system, which returns air through a dedicated air shaft and uses a fan to discharge the ventilated air directly into the atmosphere.

[0003] At the thermodynamic level, underground mining space presents a typical deep geothermal effect, that is, the ground temperature increases with depth. In the actual underground coal mining process, generally speaking, below the constant temperature zone, the ground temperature will increase by about 3 degrees Celsius for every 100 meters underground. The temperature in the constant temperature zone is usually maintained at around 15 degrees Celsius. Therefore, for a mine with an underground depth of 600 meters, the ground temperature may reach about 30 degrees Celsius. In addition, when air flows through underground tunnels, it will exchange heat and moisture with the surrounding rock of the tunnels, and the heat dissipation of large equipment in the mine will also be discharged into the return air. After the heat is superimposed, the temperature of the return air flow is generally 8-15 degrees Celsius higher than that of the incoming air. However, the return air of coal mines is currently directly discharged into the atmosphere, and the large amount of heat energy contained therein has not been effectively utilized. Taking a mine with an annual output of 5 million tons as an example, the total amount of waste heat in the return air is equivalent to the calorific value of about 6,000 tons of standard coal, which has considerable low-level thermal energy utilization value. However, the existing system directly discharges it as waste heat, resulting in energy waste and environmental thermal pollution.

[0004] On the other hand, in order to ensure the antifreeze requirements of the air intake shaft, coal mining companies usually need to use coal-fired boilers to produce steam and heat the air intake through heat exchange equipment. For coal mining companies, although it is very convenient to directly consume the coal produced by the mine, the efficiency of coal-fired boilers is relatively low, and coal is a non-recyclable energy source, which will cause pollution after combustion. At the same time, burning self-produced coal also reduces the amount of coal that can be exported, thereby reducing the company's profits.

[0005] Therefore, we propose a heat pipe air conditioning system for mines to solve the above technical problems. Summary of the invention

[0006] In order to solve the technical problems existing in the above-mentioned prior art, the present invention proposes a heat pipe air conditioning system for mines.

[0007] The technical solution adopted by the present invention is as follows: A heat pipe air conditioning system for a mine, comprising a heat source collection component, a wellhead antifreeze component, an underground temperature control component and an intelligent control component, wherein: The heat source collection assembly includes a high-temperature electromechanical equipment heat dissipation cover, a medium-temperature mine water heat exchanger and a low-temperature return air channel heat exchange plate. The high-temperature electromechanical equipment heat dissipation cover is provided with a nanofluid heat pipe, and the nanofluid heat pipe is connected to a pulsating heat pipe group through a working fluid delivery pipeline. The medium-temperature mine water heat exchanger and the low-temperature return air channel heat exchange plate are connected to a phase change energy storage tank through a pulsating heat pipe group. The wellhead antifreeze assembly includes a heat dissipation fin group and a humidity sensing coating, wherein the heat dissipation fin group is connected to the nanofluid heat pipe through a working fluid delivery pipeline, and the humidity sensing coating is attached to the surface of the heat dissipation fin group; The underground temperature control component includes an absorption heat pump, a radiation plate, a dehumidification fresh air unit and a variable frequency fan. The nanofluid heat pipe and the phase change energy storage tank are connected to the input end of the absorption heat pump, the radiation plate, the dehumidification fresh air unit and the heat dissipation fin group are connected to the output end of the absorption heat pump, the output ends of the radiation plate and the dehumidification fresh air unit are connected to the input end of the variable frequency fan, and the output end of the variable frequency fan leads to the underground tunnel; The intelligent control component includes a controller, which collects temperature data of the heat source collection component, humidity data of the wellhead antifreeze component and pressure data of the downhole temperature control component in real time through a wireless sensor network; the controller has a built-in digital twin model and a source-grid-load collaborative algorithm, and realizes the control of each component through an industrial bus.

[0008] In a further technical solution, in the heat source collection component: The tube wall of the nanofluid heat pipe is coated with a silicon carbide-graphene composite heat conductive layer; The phase change energy storage tank is filled with paraffin-expanded graphite composite phase change material.

[0009] In a further technical solution, in the wellhead antifreeze assembly: The heat dissipation fin group comprises V-shaped fins which are staggered in the axial direction, and micropores with an aperture of 50-200 μm are opened on the surface of the fins; The humidity sensing coating is composed of a temperature-sensitive color-changing material and conductive graphene. When the relative humidity is greater than a designed threshold, antifreeze measures are triggered and directional heating is started.

[0010] In a further technical solution, the directional heating is implemented by: generating a position coordinate signal through the change in resistance of the humidity-sensing coating; controlling the two-phase flow working fluid in the heat dissipation fin group to form eddy current impact in a specified area to increase the temperature of the specified area.

[0011] In a further technical solution, in the downhole temperature control component: The radiation plate is a double-layer hollow aluminum plate structure, the interior is filled with a nano-silicon dioxide aerogel insulation layer, and the surface is covered with a far-infrared emitting coating; The dehumidification fresh air unit adopts LiCl solution as a dehumidifier and forms a closed concentration difference circulation loop with the absorption heat pump.

[0012] In a further technical solution, the intelligent control component includes wireless temperature and humidity sensors, heat flow meters and pressure transmitters deployed in various zones underground; wherein the digital twin model construction method is: Based on historical data, LSTM neural network is trained to predict heat load, and three-dimensional thermal field dynamic map is generated by combining CFD simulation; The source-grid-load collaborative algorithm calculates the optimal working fluid allocation strategy in real time, and preferentially calls the phase change energy storage tanks in adjacent areas to cope with sudden low temperature conditions.

[0013] In a further technical solution, the pulsating heat pipe group has the following two operating modes: When the mine drainage temperature is greater than 20°C, the pulsating heat pipe high frequency mode is started and the inlet valve of the phase change energy storage tank is closed; When the return air temperature is less than 20℃, switch to the pulsating heat pipe low-frequency mode and open the phase change energy storage tank inlet valve.

[0014] In a further technical solution, an emergency heating subsystem is also included: a movable heat pipe quick-install bracket is arranged on the excavation working face, and a miniature eddy current heater is connected to the end of the bracket; when the local temperature drops sharply exceeding the set threshold, the heat in the phase change energy storage tank is automatically released and the eddy current heater is used to supplement the heating.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. The present invention realizes the coordination of mine waste heat recovery and air conditioning through the coordinated work of heat source collection components, wellhead antifreeze components, underground temperature control components and intelligent control components, which not only ensures the safe production of the mine, but also saves energy, reduces operating costs and reduces environmental pollution.

[0016] 2. During the entire air conditioning process, the intelligent control component of the present invention collects various sensor data in real time, performs virtual simulation and optimization of the system through the digital twin model, and uses the source-grid-load collaborative algorithm to intelligently schedule energy distribution. This enables the system to more accurately predict and respond to various working conditions, and energy distribution is more reasonable and efficient, realizing intelligent management of the system.

[0017] 3. The present invention realizes the recovery of multi-stage heat sources, which can not only supply heat to the heat dissipation fin group, preheat the incoming air and ensure the normal operation of the wellhead equipment in a cold environment, thereby effectively protecting the wellhead from freezing, but also utilize the phase change energy storage tank to store heat and release the stored heat when needed to meet the thermal energy demand of the mine, effectively improving the utilization rate of thermal energy.

[0018] 4. The dehumidification fresh air unit of the present invention adopts LiCl solution as the dehumidifier and forms a closed concentration difference circulation loop with the absorption heat pump. During the operation, the moisture absorption effect of the LiCl solution is utilized to effectively reduce the humidity of the fresh air. After moisture absorption, the waste heat of the absorption heat pump is utilized to regenerate the dehumidifier, thereby forming a closed cycle, which is both efficient and environmentally friendly, and ensures the continuous and stable operation of the dehumidification fresh air unit.

[0019] 5. The present invention generates a position coordinate signal through the change in resistance of the humidity-sensitive coating, which can accurately indicate the area that needs to be heated, effectively avoiding the energy waste caused by blind heating. The formation of eddy current impact can concentrate heat, rapidly increase the local temperature, improve the heating efficiency, and shorten the heating time. This directional heating method avoids the energy loss caused by global heating, and only heats the area that needs to be heated, effectively saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will now be described by way of example with reference to the accompanying drawings, in which: Figure 1 Schematic diagram of the heat transfer path of the present invention. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1 The present invention provides a heat pipe air conditioning system for mines, including a heat source collection component, a wellhead antifreeze component, an underground temperature control component and an intelligent control component, wherein: The heat source collection assembly includes a high-temperature electromechanical equipment heat dissipation cover, a medium-temperature mine water heat exchanger and a low-temperature return air channel heat exchange plate. The high-temperature electromechanical equipment heat dissipation cover is provided with a nanofluid heat pipe, and the nanofluid heat pipe is connected to a pulsating heat pipe group through a working fluid delivery pipeline. The medium-temperature mine water heat exchanger and the low-temperature return air channel heat exchange plate are connected to a phase change energy storage tank through a pulsating heat pipe group. The wellhead antifreeze assembly includes a heat dissipation fin group and a humidity sensing coating, wherein the heat dissipation fin group is connected to the nanofluid heat pipe through a working fluid delivery pipeline, and the humidity sensing coating is attached to the surface of the heat dissipation fin group; The underground temperature control component includes an absorption heat pump, a radiation plate, a dehumidification fresh air unit and a variable frequency fan. The nanofluid heat pipe and the phase change energy storage tank are connected to the input end of the absorption heat pump, the radiation plate, the dehumidification fresh air unit and the heat dissipation fin group are connected to the output end of the absorption heat pump, the output ends of the radiation plate and the dehumidification fresh air unit are connected to the input end of the variable frequency fan, and the output end of the variable frequency fan leads to the underground tunnel; The intelligent control component includes a controller, which collects temperature data of the heat source collection component, humidity data of the wellhead antifreeze component and pressure data of the downhole temperature control component in real time through a wireless sensor network; the controller has a built-in digital twin model and a source-grid-load collaborative algorithm, and realizes the control of each component through an industrial bus.

[0023] In the actual underground coal mining process, the heat source collection component of this air conditioning system is responsible for collecting waste heat in the mine, including heat dissipation of high-temperature electromechanical equipment, heat from medium-temperature mine water and heat from low-temperature return air, realizing the recovery of multi-level heat sources; the wellhead antifreeze component uses the collected heat to protect the wellhead from freezing; the underground temperature control component adjusts the temperature and humidity of the underground air through absorption heat pumps and other equipment; and the intelligent control component is responsible for real-time collection of sensor data, and optimizes and controls the operation of each component through the digital twin model and source-grid-load collaborative algorithm. Specifically, large equipment in the mine generates a lot of heat during operation, which is dissipated through the heat dissipation cover of high-temperature electromechanical equipment, and the nanofluid heat pipe, with its thermal conductivity, efficiently absorbs the heat on the heat dissipation cover. Subsequently, through the working fluid delivery pipeline, the heat is transferred to the heat dissipation fin group, which dissipates heat, preheats the incoming air and ensures the normal operation of the wellhead equipment in a cold environment, thereby effectively protecting the wellhead from freezing. The medium-temperature mine water heat exchanger and the low-temperature return air channel heat exchanger plate are used to absorb the heat in the mine water and the heat in the return air respectively. They are connected to the nanofluid heat pipe and the phase change energy storage tank through the pulsating heat pipe group. They can not only transfer heat to the nanofluid heat pipe, but also transfer heat to the phase change energy storage tank for storage. They can release the stored heat when needed to meet the thermal energy needs of the mine. The input end of the absorption heat pump is connected to the nanofluid heat pipe and the phase change energy storage tank, making full use of the heat recovered by the heat source collection component as the driving source, and realizing the heating or cooling of the underground air through the heat pump cycle. The output end is connected to the radiation plate, the dehumidification fresh air unit and the heat dissipation fin group. The radiation plate is used to evenly dissipate or absorb heat and effectively adjust the underground temperature; the dehumidification fresh air unit controls the humidity underground and provides fresh air, and the heat dissipation fin group uses this heat to heat the wellhead to achieve antifreeze protection. As a key component of the ventilation system, the variable frequency fan introduces fresh air after temperature and humidity adjustment into the underground tunnel, improving the working environment of miners. The heat contained in the fresh air can also be recycled again by contacting with the low-temperature return air channel heat exchange plate and nanofluid heat pipe during the return air process, further improving the utilization rate of heat. It is worth mentioning that during the entire air conditioning process, the intelligent control component collects various sensor data in real time, performs virtual simulation and optimization of the system through the digital twin model, and uses the source-grid-load collaborative algorithm to intelligently dispatch energy distribution, control the working fluid regulating valve of the pulsating heat pipe group, the frequency converter of the absorption heat pump, and the air supply damper of the dehumidification fresh air unit, etc. This enables the system to more accurately predict and respond to various working conditions, and the energy distribution is more reasonable and efficient, realizing the intelligent management of the system.Compared with the traditional centralized ventilation system, this air conditioning system realizes the coordination of mine waste heat recovery and air conditioning through the coordinated work of heat source collection components, wellhead antifreeze components, underground temperature control components and intelligent control components. It not only ensures the safe production of the mine, but also saves energy and reduces operating costs.

[0024] In a specific embodiment, in the heat source collection component: The tube wall of the nanofluid heat pipe is coated with a silicon carbide-graphene composite heat conductive layer; The phase change energy storage tank is filled with paraffin-expanded graphite composite phase change material.

[0025] The tube wall of the nanofluid heat pipe is coated with a silicon carbide-graphene composite thermal conductive layer, which improves the thermal conductivity of the heat pipe and effectively improves the heat transfer efficiency compared to traditional copper tubes; the phase change energy storage tank is filled with paraffin-expanded graphite composite phase change material to achieve effective storage and release of heat.

[0026] In a specific embodiment, in the wellhead antifreeze assembly: The heat dissipation fin group comprises V-shaped fins which are staggered in the axial direction, and micropores with an aperture of 50-200 μm are opened on the surface of the fins; The humidity sensing coating is composed of a temperature-sensitive color-changing material and conductive graphene. When the relative humidity is greater than a designed threshold, antifreeze measures are triggered and directional heating is started.

[0027] The heat dissipation fin group adopts the V-shaped fin design with axial staggered design. This design effectively promotes the formation of turbulence, thereby enhancing the heat exchange effect. At the same time, the 50-200μm micropores on the fin surface can enhance the capillary suction effect, so that the heat transfer coefficient is improved and the thermal response time is shortened, thereby effectively enhancing the overall heat dissipation efficiency. In addition, the thermochromic material is coupled with the graphene conductive layer. The critical humidity of the thermochromic material is 85%. When the relative humidity is greater than 5%, the wet area is located by the change of resistance. Once the wet area is detected, the antifreeze measures will be triggered and the directional heating will be started, thereby realizing the intelligent antifreeze function.

[0028] In a specific embodiment, the directional heating is implemented by: generating a position coordinate signal through a change in the resistance of the humidity-sensitive coating; and controlling the two-phase flow medium in the heat dissipation fin group to form an eddy current impact in a specified area to increase the local temperature.

[0029] The position coordinate signal generated by the change in the resistance of the humidity-sensing coating can accurately indicate the area that needs to be heated, effectively avoiding the energy waste caused by blind heating. The formation of eddy current impact can concentrate heat, rapidly increase the local temperature, improve heating efficiency, and shorten heating time. This directional heating method avoids the energy loss caused by global heating, and only heats the area that needs to be heated, effectively saving energy.

[0030] In a specific embodiment, in the downhole temperature control component: The radiation plate is a double-layer hollow aluminum plate structure, the interior is filled with a nano-silicon dioxide aerogel insulation layer, and the surface is covered with a far-infrared emitting coating; The dehumidification fresh air unit adopts LiCl solution as a dehumidifier and forms a closed concentration difference circulation loop with the absorption heat pump.

[0031] The radiation panel adopts a double-layer hollow aluminum plate structure and is filled with a nano-silica aerogel insulation layer to reduce heat loss. At the same time, the surface is covered with a far-infrared emission coating to enhance the radiation efficiency, so that the radiation panel can release heat evenly. The dehumidification fresh air unit uses LiCl solution as a dehumidifier and forms a closed concentration difference circulation loop with the absorption heat pump. In this process, the moisture absorption of the LiCl solution is used to effectively reduce the humidity of the fresh air. After moisture absorption, the waste heat of the absorption heat pump is used to regenerate the dehumidifier, thus forming a closed cycle, which is both efficient and environmentally friendly, ensuring the continuous and stable operation of the dehumidification fresh air unit.

[0032] In a specific implementation, the intelligent control component includes wireless temperature and humidity sensors, heat flow meters and pressure transmitters deployed in various zones underground; wherein the digital twin model construction method is: Based on historical data, LSTM neural network is trained to predict heat load, and three-dimensional thermal field dynamic map is generated by combining CFD simulation; The source-grid-load collaborative algorithm calculates the optimal working fluid allocation strategy in real time, and preferentially calls the phase change energy storage tanks in adjacent areas to cope with sudden low temperature conditions.

[0033] By deeply mining and analyzing historical data, after sufficient training, the LSTM neural network can highly accurately predict the changing trend of heat load, providing a solid and scientific basis for the thermal energy management of the system. At the same time, combined with CFD simulation to generate a three-dimensional thermal field dynamic map, the thermal energy distribution state of the system is intuitively visible, which is convenient for operation and maintenance personnel to carry out precise regulation. In addition, the source-grid-load collaborative algorithm, with its powerful real-time computing capability, can quickly formulate the optimal working fluid distribution strategy to ensure that the system can maintain efficient and stable operation under various complex and changeable working conditions, effectively reducing energy consumption. It is worth mentioning that when responding to sudden low-temperature conditions, the algorithm can give priority to calling the phase change energy storage tanks in adjacent areas, quickly adjust the system operation status, and effectively improve the emergency response speed and overall stability of the system.

[0034] In a specific embodiment, the pulsating heat pipe group has the following two operating modes: When the mine drainage temperature is greater than 20°C, the pulsating heat pipe high frequency mode is started and the inlet valve of the phase change energy storage tank is closed; When the return air temperature is less than 20℃, switch to the pulsating heat pipe low-frequency mode and open the phase change energy storage tank inlet valve.

[0035] When the mine drainage temperature exceeds the threshold of 20°C, the system automatically starts the high-frequency mode of the pulsating heat pipe to quickly and effectively dissipate heat to ensure that the system will not be damaged by overheating. At the same time, the inlet valve of the phase change energy storage tank is closed to effectively prevent heat from being transferred to the phase change energy storage tank for storage, thereby ensuring that this part of the heat can be directly and quickly transferred from the pulsating heat pipe group to the nanofluid heat pipe, and then supplied to the heat dissipation fin group for wellhead antifreeze, reducing the loss of the energy transfer process. When the return air temperature is lower than the threshold of 20°C, the system automatically switches to the low-frequency mode of the pulsating heat pipe to reduce unnecessary energy consumption. At the same time, the inlet valve of the phase change energy storage tank is opened to store excess heat for emergency use. Through the flexible switching of these two operating modes, the pulsating heat pipe group can adapt to different mine environmental conditions, ensuring that the system can maintain efficient and stable operation under various working conditions.

[0036] In a specific embodiment, it also includes an emergency heating subsystem: a movable heat pipe quick-install bracket is arranged on the excavation working face, and a micro eddy current heater is connected to the end of the bracket; when it is monitored that the local temperature drops sharply exceeding the set threshold, the heat in the phase change energy storage tank is automatically released and the heating is supplemented by the eddy current heater.

[0037] A movable heat pipe quick-install bracket is arranged on the excavation working face to cope with sudden changes in local temperature. When a water inrush accident occurs, causing the local temperature to drop to the set threshold of 5°C, the heat of the phase change energy storage tank can be quickly released through the micro eddy current heater, so that the working face temperature can be quickly restored to a safe range, ensuring the normal progress of the excavation operation and the safety of personnel.

[0038] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A heat pipe air conditioning system for mines, characterized in that: It includes heat source collection components, wellhead antifreeze components, downhole temperature control components and intelligent control components, among which: The heat source collection assembly includes a high-temperature electromechanical equipment heat dissipation cover, a medium-temperature mine water heat exchanger and a low-temperature return air channel heat exchange plate. The high-temperature electromechanical equipment heat dissipation cover is provided with a nanofluid heat pipe, and the nanofluid heat pipe is connected to a pulsating heat pipe group through a working fluid delivery pipeline. The medium-temperature mine water heat exchanger and the low-temperature return air channel heat exchange plate are connected to a phase change energy storage tank through a pulsating heat pipe group. The wellhead antifreeze assembly includes a heat dissipation fin group and a humidity sensing coating, wherein the heat dissipation fin group is connected to the nanofluid heat pipe through a working fluid delivery pipeline, and the humidity sensing coating is attached to the surface of the heat dissipation fin group; The underground temperature control component includes an absorption heat pump, a radiation plate, a dehumidification fresh air unit and a variable frequency fan. The nanofluid heat pipe and the phase change energy storage tank are connected to the input end of the absorption heat pump, the radiation plate, the dehumidification fresh air unit and the heat dissipation fin group are connected to the output end of the absorption heat pump, the output ends of the radiation plate and the dehumidification fresh air unit are connected to the input end of the variable frequency fan, and the output end of the variable frequency fan leads to the underground tunnel; The intelligent control component includes a controller, which collects temperature data of the heat source collection component, humidity data of the wellhead antifreeze component and pressure data of the downhole temperature control component in real time through a wireless sensor network; the controller has a built-in digital twin model and a source-grid-load collaborative algorithm, and realizes the control of each component through an industrial bus.

2. A heat pipe air conditioning system for mines according to claim 1, characterized in that: In the heat source collection component: The tube wall of the nanofluid heat pipe is coated with a silicon carbide-graphene composite heat conductive layer; The phase change energy storage tank is filled with paraffin-expanded graphite composite phase change material.

3. A heat pipe air conditioning system for mines according to claim 1, characterized in that: In the wellhead antifreeze assembly: The heat dissipation fin group comprises V-shaped fins which are staggered in the axial direction, and micropores with an aperture of 50-200 μm are opened on the surface of the fins; The humidity sensing coating is composed of a temperature-sensitive color-changing material and conductive graphene. When the relative humidity is greater than a designed threshold, antifreeze measures are triggered and directional heating is started.

4. A heat pipe air conditioning system for mines according to claim 3, characterized in that: The directional heating is achieved by: generating a position coordinate signal by sensing the change in the resistance of the coating through humidity; and controlling the two-phase flow medium in the heat dissipation fin group to form an eddy current impact in a designated area to increase the temperature of the designated area.

5. A heat pipe air conditioning system for mines according to claim 1, characterized in that: In the downhole temperature control component: The radiation plate is a double-layer hollow aluminum plate structure, the interior is filled with a nano-silicon dioxide aerogel insulation layer, and the surface is covered with a far-infrared emitting coating; The dehumidification fresh air unit adopts LiCl solution as a dehumidifier and forms a closed concentration difference circulation loop with the absorption heat pump.

6. A heat pipe air conditioning system for mines according to claim 1, characterized in that: The intelligent control component includes wireless temperature and humidity sensors, heat flow meters and pressure transmitters deployed in various zones underground; wherein the digital twin model construction method is: Based on historical data, LSTM neural network is trained to predict heat load, and three-dimensional thermal field dynamic map is generated by combining CFD simulation; The source-grid-load collaborative algorithm calculates the optimal working fluid allocation strategy in real time, and preferentially calls the phase change energy storage tanks in adjacent areas to cope with sudden low temperature conditions.

7. A heat pipe air conditioning system for mines according to claim 1, characterized in that: The pulsating heat pipe group has the following two operating modes: When the mine drainage temperature is greater than 20°C, the pulsating heat pipe high frequency mode is started and the inlet valve of the phase change energy storage tank is closed; When the return air temperature is less than 20℃, switch to the pulsating heat pipe low-frequency mode and open the phase change energy storage tank inlet valve.

8. A heat pipe air conditioning system for mines according to claim 1, characterized in that: It also includes an emergency heating subsystem: a movable heat pipe quick-install bracket is arranged on the excavation working face, and a micro eddy current heater is connected to the end of the bracket; when the local temperature drops sharply exceeding the set threshold, the heat in the phase change energy storage tank is automatically released and the eddy current heater is used to supplement the heating.

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