Flexible heat dissipation device for multi-path heat transfer of outdoor grotto and use method of flexible heat dissipation device

Through the design of flexible imitation squid heat pipes, the multi-channel heat dissipation needs and structural rigidity in open-air grottoes are solved, and efficient and flexible heat dissipation effects are achieved, ensuring the protection of cultural relics and structures in grottoes.

CN119665706APending Publication Date: 2025-03-21INSTITUTE FOR SMART CITY OF CHONGQING UNIVERSITY IN LIYANG LIYANG +1
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Patent Information

Application Number
CN202411741053.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2025-03-21

AI Technical Summary

Technical Problem

The existing heat dissipation technology cannot effectively meet the multi-channel heat dissipation needs caused by different areas in open-air grottoes due to their unique geographical orientation, sheltering conditions and thermal load characteristics. Moreover, the structure of traditional heat dissipation devices is rigid, making it difficult to adapt to the complex terrain and irregular spatial layout of open-air grottoes.

Method used

The flexible imitation squid heat pipe design is adopted, which includes at least two imitation squid flexible heat pipes, the same number of heat conductors and a radiator. One end of each imitation squid flexible heat pipe is connected to the heat conductor, and the other end is centrally arranged in the radiator. The thermal load point is determined through thermal imaging analysis and the heat pipe is flexibly arranged to achieve multiple independent heat transfer.

Benefits of technology

The device can flexibly adapt to the complex environment of open-air grottoes, effectively deal with temperature differences in different areas, improve heat dissipation efficiency, and provide efficient multi-channel heat dissipation solutions to ensure that the cultural relics and structures in the grottoes are protected from the harm of temperature changes.

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Abstract

The invention discloses a flexible heat dissipation device for multi-path heat transfer of an outdoor grotto and a use method of the flexible heat dissipation device, and belongs to the technical field of heat dissipation of the outdoor grotto, the flexible heat dissipation device comprises at least two squid-imitating flexible heat pipes, heat conductors with the same number as the squid-imitating flexible heat pipes and a heat dissipation device; one end of each squid-imitating flexible heat pipe is connected with the heat conductor; and the other ends of all the squid-imitated flexible heat pipes are arranged in the radiator in a centralized manner. The three flexible heat pipes form three loops similar to squid tentacles, and each loop can be independently bent, has excellent flexibility and can adapt to the complex environment of the outdoor grotto; different loops can cool heat load positions with different temperatures at the same time, the temperature difference caused by environmental factors in different areas in the grotto can be effectively handled, the heating end and the cooling end of the flexible heat pipe are capillary copper pipes, the heat transfer resistance can be further reduced, the heat dissipation efficiency is improved, and the service life of the grotto is prolonged. And an efficient multi-path heat dissipation solution is provided for cultural relic protection and the like of the outdoor grotto.
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Description

Technical Field

[0001] The invention belongs to the technical field of heat dissipation in open-air caves, and in particular relates to a flexible heat dissipation device for multi-path heat transfer in open-air caves and a use method thereof. Background Art

[0002] As a precious historical and cultural heritage, the open-air grottoes carry rich artistic and historical values. However, these grottoes have been exposed to the natural environment for a long time and face many threats. Among them, the damage to the cultural relics in the grottoes caused by temperature changes is a key issue that needs to be solved urgently. Solar radiation is one of the main factors that cause temperature changes in open-air grottoes. During the day, the sun shines directly on the surface of the grottoes, causing the grotto walls and internal cultural relics to absorb a large amount of heat, resulting in a sharp rise in temperature. The grotto walls in different directions are heated to different degrees. This uneven heating will form a temperature gradient in the grottoes, generate thermal stress, and may cause cracking and peeling of the rock structure of the grottoes, causing irreversible damage to cultural relics such as murals and Buddha statues carved on the grotto walls. Moreover, the high temperature environment may also accelerate the aging, fading and deterioration of cultural relic materials, affecting the preservation life of cultural relics.

[0003] At present, in the field of cultural relics protection, temperature control technology for indoor environments or small enclosed spaces has been developed to a certain extent, but for the special large, open and complex environment of open-air caves, the existing heat dissipation technology has obvious limitations. Traditional heat dissipation methods are often based on a single heat transfer path or overall environmental control design, which cannot meet the multi-path heat dissipation requirements of different areas in the open-air caves due to their unique geographical orientation, shielding conditions and heat load characteristics. For example, although some heat dissipation solutions based on ventilation systems can adjust the air temperature in the caves to a certain extent, they have poor targeted heat dissipation effects on local high-temperature areas in the caves. In addition, the structural rigidity of some heat dissipation devices is strong, which makes it difficult to adapt to the complex terrain and irregular spatial layout of open-air caves. The installation and use are greatly restricted, and it is impossible to effectively cover the various locations where the cultural relics and key structures that need to be protected are located, so that the open-air caves and the cultural relics inside them cannot be fully protected from the harm of temperature changes. Therefore, there is an urgent need for an efficient and flexible heat dissipation device that can be used for multi-path heat transfer in open-air caves and adapt to complex environments, and a corresponding method of use. Summary of the invention

[0004] The purpose of the present invention is to address the above-mentioned deficiencies in the prior art and to provide a flexible heat dissipation device for multi-path heat transfer in open-air caves and a method of using the same, so as to solve the problem that traditional heat dissipation methods are often based on a single heat transfer path or overall environmental control design, and cannot meet the multi-path heat dissipation needs of different areas in open-air caves due to their unique geographical orientation, shielding conditions and heat load characteristics.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] In a first aspect, a flexible heat dissipation device for multi-path heat transfer in an open-air cave comprises at least two squid-like flexible heat pipes, a heat conductor having the same number as the squid-like flexible heat pipes, and a heat sink;

[0007] One end of each squid-like flexible heat pipe is connected to the heat conductor; the other ends of all the squid-like flexible heat pipes are centrally arranged in the radiator.

[0008] Furthermore, the flexible heat dissipation device is squid-shaped.

[0009] Furthermore, the flexible heat dissipation device includes three squid-like flexible heat pipes.

[0010] Furthermore, the three squid-like flexible heat pipes can be bent independently.

[0011] Furthermore, the squid-like flexible heat pipe is a pulsating heat pipe.

[0012] Furthermore, the heating section of each pulsating heat pipe is respectively connected to a heat conductor; and the cooling sections of all the pulsating heat pipes are centrally embedded in a radiator.

[0013] Furthermore, the heating section and the cooling section of the pulsating heat pipe are respectively connected to the capillary copper tube; between the heating section and the cooling section of the pulsating heat pipe is an insulating section; the insulating section is a polytetrafluoroethylene tube arranged at intervals.

[0014] Furthermore, the heat conductor is a rectangular metal block, and the capillary copper tubes connected to each of the pulsating heat pipe heating sections are respectively embedded in different rectangular metal blocks.

[0015] Furthermore, the radiator is an aluminum radiator, and all the capillary copper tubes connected to the pulsating heat pipe cooling sections are embedded in one aluminum radiator.

[0016] In a second aspect, a method for using a flexible heat dissipation device for multi-path heat transfer in an open-air cave comprises the following steps:

[0017] S1. Use thermal imaging analysis method to determine multiple heat load points of the open-air caves;

[0018] S2, arranging a plurality of heat conductors at a plurality of different heat load points, respectively, and embedding a plurality of heating sections of the squid-like flexible heat pipes into different heat conductors, respectively;

[0019] S3, extending the cooling sections of the multiple squid-like flexible heat pipes to a cool and ventilated place outside the cave by bending, and embedding all the cooling sections of the squid-like flexible heat pipes in a radiator;

[0020] S4, installing micro temperature sensors on the cooling section, heating section and insulation section of the squid-like flexible heat pipe to detect the temperature information of the squid-like flexible heat pipe in real time;

[0021] S5, installing a heat flow meter at the heating section of the squid-like flexible heat pipe and at the part of the squid-like flexible heat pipe in contact with the cave, and collecting heat inflow and outflow data of the squid-like flexible heat pipe in real time;

[0022] S6. Evaluate the working status of the flexible heat dissipation device based on the temperature information, heat inflow and heat outflow data of the squid-like flexible heat pipe.

[0023] The flexible heat dissipation device for multi-path heat transfer in open-air caves and the use method thereof provided by the present invention have the following beneficial effects:

[0024] The three flexible squid-like heat pipes of the present invention are three loops, similar to squid tentacles. Each loop can be bent individually and has excellent flexibility, and can adapt to the complex environment of open-air grottoes. Different loops can cool heat load positions with different temperatures at the same time, and can effectively cope with the temperature differences caused by environmental factors in different areas of the grottoes. The heating end and the cooling end of the flexible heat pipe are both capillary copper tubes, which can further reduce the heat transfer resistance and improve the heat dissipation efficiency, providing an efficient multi-channel heat dissipation solution for the protection of cultural relics in open-air grottoes.

[0025] The core of the present invention is a squid-like flexible heat pipe, which is similar to the multi-tentacle structure of the squid and the working principle of the pulsating heat pipe. The heat pipe has three loops, each of which simulates the tentacles of the squid. This unique structure gives the heat pipe excellent flexibility. When working as a pulsating heat pipe, its design without a core layer simplifies the structure and each loop can act as an independent heat transfer branch. In terms of specific structure, each loop can be bent individually, which can easily adapt to the complex and diverse spatial shapes inside the open-air caves. Whether it is the unevenness of the cave wall, the corner position, or the presence of a multi-layer structure, a good installation layout can be achieved.

[0026] The working principle of the squid-like flexible heat pipe of the present invention is that different loops can perform heating or cooling operations on different positions at the same time. Capillary copper tubes are used in the heating section and the cooling section to enhance heat transfer. The copper tubes have excellent properties such as high thermal conductivity and corrosion resistance and are connected to the flexible heat pipe body. At the same time, polytetrafluoroethylene tubes are alternately placed between the heating section and the cooling section as insulation sections. The polytetrafluoroethylene tubes have low thermal conductivity and can effectively reduce the transfer of heat between adjacent sections. Moreover, the dual-diameter channel design will produce a large pressure difference between adjacent tubes. According to the principles of fluid mechanics, this pressure difference can enhance unidirectional flow and greatly enhance the heat transfer efficiency of the pulsating heat pipe.

[0027] In the heating section of the squid-like flexible heat pipe, the present invention embeds a capillary copper tube in a rectangular metal block. The square metal block is made of a material with high thermal conductivity and good heat capacity, which can quickly absorb and transfer heat. In each cooling branch, the capillary copper tube is embedded in an aluminum radiator, which has a large heat dissipation area and efficient heat dissipation performance, which helps to quickly dissipate heat to the surrounding environment.

[0028] The flexible heat dissipation device for multi-channel heat transfer in open-air caves of the present invention has many significant advantages. First, its squid-like multi-circuit flexible heat pipe design can flexibly adapt to the complex internal structure of open-air caves. Whether it is the tortuosity of the cave wall, the uneven top or the irregular shape of the bottom, it can fit tightly, effectively solving the problem that traditional heat dissipation devices are difficult to adapt to complex installation environments. Secondly, the multi-channel independent heat transfer function enables different circuits to handle heat loads at various locations at the same time. Even if the temperature and intensity of heat loads at different locations are very different, they do not interfere with each other, greatly improving the heat dissipation efficiency and specifically ensuring the temperature stability of multiple local areas in the cave. Furthermore, the special copper tube design of the heating section and the cooling section and the cooperation of the polytetrafluoroethylene tube of the insulation section with the double-diameter channel enhance the heat transfer effect, reduce thermal resistance, and make heat transfer more efficient. In addition, the debugging and long-term monitoring mechanism of the system ensure that the device can operate stably for a long time in a complex open-air environment, providing reliable protection for the protection of cave cultural relics, and effectively reducing the risk of cave damage and cultural relic weathering caused by temperature changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Schematic diagram of a flexible heat dissipation device used for multi-path heat transfer in open-air caves.

[0030] Among them, 1. Radiator; 2. Pulsating heat pipe; 3. Heat conductor. DETAILED DESCRIPTION

[0031] The specific implementation modes of the present invention are described below so that those skilled in the art can understand the present invention. However, it should be clear that the present invention is not limited to the scope of the specific implementation modes. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the attached claims, these changes are obvious, and all inventions and creations utilizing the concept of the present invention are protected.

[0032] Example 1

[0033] This embodiment provides a flexible heat dissipation device for multi-path heat transfer in open-air caves, referring to Figure 1 , which includes:

[0034] At least two squid-like flexible heat pipes, the same number of heat conductors 3 as the squid-like flexible heat pipes, and a radiator 1; one end of each squid-like flexible heat pipe is connected to the heat conductor 3, and the other ends of all the squid-like flexible heat pipes are centrally arranged in the radiator 1.

[0035] The flexible heat dissipation device is squid-shaped, including multiple squid-like flexible heat pipes. The squid-like flexible heat pipes in this embodiment are pulsating heat pipes 2, and the number thereof is determined according to actual needs. In this embodiment, three are preferably provided. The three squid-like flexible heat pipes can be bent independently, and each pulsating heat pipe 2 is a loop. The two ends of each loop are a heating section and a cooling section, respectively. Each loop imitates the tentacles of a squid, and each loop can be bent individually, with excellent flexibility to adapt to the complex spatial shape and installation conditions inside the open-air caves. The squid-shaped soft heat pipe works as a pulsating heat pipe 2 and has no core layer, and each loop acts as a heat transfer branch.

[0036] The heating section of each pulsating heat pipe 2 is connected to a heat conductor 3, and the cooling sections of all pulsating heat pipes 2 are embedded in a heat sink 1. The heating section and cooling section of the pulsating heat pipe 2 are connected to the capillary copper tube respectively; the insulating section is between the heating section and the cooling section of the pulsating heat pipe 2; the insulating section is a polytetrafluoroethylene tube arranged at intervals.

[0037] As a preferred embodiment of this embodiment, the heat conductor 3 is a rectangular metal block, and the capillary copper tubes connected to the heating section of each pulsating heat pipe 2 are respectively embedded in different rectangular metal blocks.

[0038] The radiator 1 is an aluminum radiator 1 , and all the capillary copper tubes connected to the cooling sections of the pulsating heat pipes 2 are embedded in one aluminum radiator 1 .

[0039] It should be noted that in order to meet the performance requirements of the squid-like flexible heat pipe of this embodiment, this embodiment has certain requirements for the main material constituting the squid-like flexible heat pipe, and the thermal conductivity is not less than 5000W / (m·K). At the same time, other heat-related performance parameters such as the thermal expansion coefficient of the material are considered to ensure that the heat pipe performance will not be adversely affected when the temperature changes. The material needs to have sufficient mechanical strength and flexibility to withstand the external forces that may occur in the open-air caves, such as wind, slight geological vibrations, etc. The material properties are quantified by mechanical test data such as tensile strength and bending fatigue limit, and will not be damaged by frequent bending during long-term use. In order to improve flexibility, methods such as adding plasticizers can be used, or multi-layer composite structures can be designed to enhance mechanical strength. The material also needs to have good chemical stability and can effectively resist erosion by factors such as rain, humidity changes, and atmospheric pollutants in an open-air environment. The material resists erosion through chemical principles such as the formation of a passivation film on the surface to ensure that the service life of the squid-like flexible heat pipe is not less than 3 years.

[0040] Example 2

[0041] Based on Example 1, this embodiment provides a method for using a flexible heat dissipation device for multi-path heat transfer in an open-air cave, which specifically includes the following steps:

[0042] Step S1, using a thermal imaging analysis method to determine multiple heat load points of the open-air caves;

[0043] This embodiment conducts a comprehensive thermal environment survey of the open-air caves, measures and records temperature data, solar radiation intensity data, air flow direction and speed data of different areas; determines the key locations in the open-air caves that need heat dissipation based on the collected data, and analyzes the heat load characteristics of each key location, including the size of the heat load, the temperature variation range, and the main environmental factors that generate the heat load;

[0044] Specifically, the heat load is determined as follows:

[0045] (1) Heat load point on the top of the cave: Through thermal imaging analysis, it is clearly observed that there is an obvious heat load point on the top of the cave, which is located near the rock cracks. This area is directly exposed to sunlight during the day, and the solar radiation intensity is extremely high. Under the action of sunlight for a long time, the rock absorbs a large amount of heat, causing the temperature of this part to rise sharply. Due to the thermal conductivity of the rock itself, heat accumulates around the cracks, exacerbating the phenomenon of local temperature rise, which poses a potential threat to the stability of the rock structure on the top of the cave.

[0046] (2) Heat load point on the inner wall of the cave: Another key heat load point is located on the inner wall of the cave near the precious murals. In daily operations, the hot air exhaled by tourists and the changes in the number of tourists cause the air temperature around this area to fluctuate frequently. These hot air contains water vapor, which not only changes the local temperature environment, but also may have an adverse effect on the preservation of the murals. As a precious cultural heritage in the caves, the murals are extremely sensitive to changes in environmental temperature and humidity, so temperature control in this area is crucial.

[0047] (3) Heat load point at the bottom of the cave: The rock base at the bottom of the cave has also been identified as one of the main heat load points. The heat from the ground is continuously transferred upward through heat conduction, causing the rock temperature in this area to continue to rise. The ground temperature is affected by many factors, including underground heat sources and changes in surface temperature. This heat conducted from the bottom will affect the temperature distribution of the entire cave, and thus affect the stability of the cave and the preservation of the cultural relics inside.

[0048] Step S2, arranging a plurality of heat conductors 3 at a plurality of different heat load points, respectively, and embedding a plurality of heating sections of the squid-like flexible heat pipes into different heat conductors 3;

[0049] Step S3, by bending, the cooling sections of the plurality of squid-like flexible heat pipes are extended to a cool and ventilated place outside the cave, and all the cooling sections of the squid-like flexible heat pipes are centrally embedded in a radiator 1;

[0050] When installing:

[0051] (1) Arrangement of the top heat load point: One of the loops of the squid-like flexible heat pipe is arranged near the heat load point on the top of the cave. Due to the excellent flexibility of the heat pipe loop, it can be flexibly adjusted according to the complex curved surface shape of the top of the cave and the direction of the rock cracks. The heating section of the heat pipe fits tightly to the surface around the rock cracks to ensure maximum heat absorption. This tight fit can fill the tiny gaps between the heat pipe and the rock surface through special thermal conductive materials, effectively improving the heat conduction efficiency.

[0052] (2) Arrangement of heat load points on the inner wall: For heat load points close to the murals, special care was taken during operation. When arranging the heat pipe loop, a special embedding process was used to avoid any damage to the murals. The heating section of the heat pipe fits along the rock wall around the murals, taking into full consideration the connection structure and vulnerable parts between the murals and the rocks. Through precise positioning and flexible adjustment, the heat pipe can effectively absorb the heat generated by temperature fluctuations caused by visitor activities without negatively affecting the preservation environment of the murals.

[0053] (3) Arrangement of heat load points at the bottom: At the rock base at the bottom of the cave, the heating end of the third heat pipe loop is closely connected to the rock surface of the base. Considering the structural characteristics of the bottom and possible water accumulation, the heat pipe is waterproofed and reinforced. The heat pipe is laid along the shape of the base to ensure full coverage of the area with high heat load, thereby effectively intercepting the heat conducted from the ground.

[0054] The cooling section of each heat pipe loop is connected by a capillary copper tube and extends to a cool and ventilated place outside the cave. The design of the capillary copper tube not only ensures good heat conduction performance, but also promotes the circulation of the working medium in the heat pipe.

[0055] (1) Working conditions during the high temperature period in summer: During the high temperature period in summer, as the temperature in the cave gradually rises, the squid-like flexible heat pipe begins to start its efficient heat transfer process. At the top of the cave, when the temperature near the rock cracks rises, the heat is quickly transferred to the heating section that fits closely with it. After absorbing heat, the working medium inside the heat pipe begins to vaporize and form steam. Under the action of pressure difference, the steam flows along the heat pipe loop to the cooling section. Due to the action of the capillary copper tube, the steam remains stable during the flow process, and there will be no backflow or blockage.

[0056] (2) Heat dissipation effect of each load point: For the area of ​​the inner wall close to the murals, the heat pipes successfully absorbed the heat generated by the hot air exhaled by tourists. With the transfer of heat, the temperature fluctuation range of the area where the murals were located, which was originally as high as 10°C, was significantly improved. After a month of close monitoring, it was found that the temperature fluctuation range in this area had been reduced to 3°C. This stable temperature environment greatly reduced the risk of damage to the murals due to temperature changes, creating favorable conditions for the long-term preservation of the murals.

[0057] (3) Overall heat dissipation effect evaluation: The heat pipes also play an excellent heat dissipation role at the top and bottom of the cave. The problem of excessive temperature of the top rock due to direct sunlight has been significantly alleviated, reducing the possibility of cracks in the rock due to thermal expansion and contraction. The temperature of the bottom rock base is also effectively controlled, preventing the ground heat from further conducting upward and maintaining the thermal stability of the overall structure of the cave. Through the reasonable arrangement and effective operation of this squid-like flexible heat pipe, the thermal environment of the entire cave during the high temperature period in summer has been fully optimized, providing reliable technical support for the protection of open-air caves.

[0058] Step S4, installing micro temperature sensors on the cooling section, heating section and insulation section of the squid-like flexible heat pipe to detect the temperature information of the squid-like flexible heat pipe in real time;

[0059] Step S5, installing a heat flow meter at the heating section of the squid-like flexible heat pipe and at the part of the squid-like flexible heat pipe in contact with the cave, and collecting heat inflow and outflow data of the squid-like flexible heat pipe in real time;

[0060] Step S6, evaluating the working state of the flexible heat dissipation device according to the temperature information, heat inflow and heat outflow data of the squid-like flexible heat pipe;

[0061] Specific:

[0062] (1) Temperature sensor placement and monitoring: High-precision temperature sensors are installed at key locations of each loop of the squid-like flexible heat pipe. These key locations include but are not limited to the heating section, cooling section, the middle part of the loop, and locations close to the heat load point and cooling point. The accuracy of the temperature sensor must reach 0.01°C and be able to accurately measure small temperature changes. The data acquisition system collects temperature data in real time at a frequency of 1 hour / time and transmits the data to the central monitoring system.

[0063] (2) Heat flow meter installation and measurement: Heat flow meters are installed at the locations where the heat pipe loop contacts the cave and at appropriate locations inside the heat pipe. The heat flow data is synchronously transmitted to the central monitoring system through wired or wireless transmission.

[0064] (3) Loop temperature change monitoring: The central monitoring system analyzes the temperature sensor data at different locations of each loop in real time and draws a temperature-time curve. The temperature change trend of the loop is determined by observing the slope, peak value, and fluctuation of the curve. For example, if the temperature of a certain loop rises sharply in a short period of time and exceeds the preset threshold, there may be an abnormality.

[0065] (4) Heat transfer efficiency evaluation: Combine the heat inflow and outflow data measured by the heat flow meter to calculate the heat transfer efficiency of each loop. The heat transfer efficiency calculation formula is: (outflow heat / inflow heat) × 100%. Under normal circumstances, the efficiency should be maintained at 85%. If the efficiency is lower than this range, it may indicate that there is a blockage or increased thermal resistance inside the heat pipe.

[0066] (5) Analysis of heat exchange with the surrounding environment: By comparing the surface temperature of the heat pipe with the surrounding temperature and the heat exchange data measured by the heat flow meter, the heat exchange between the heat pipe and the surrounding environment is analyzed. If it is found that the temperature difference between the heat pipe and the environment in a certain area is too large but the heat flow is small, it may mean that the contact between the heat pipe and the surrounding environment is poor, affecting the heat dissipation effect.

[0067] Although the specific implementation of the invention is described in detail in conjunction with the drawings, it should not be understood as limiting the scope of protection of this patent. Within the scope described in the claims, various modifications and variations that can be made by those skilled in the art without creative work still fall within the scope of protection of this patent.

Claims

1. A flexible heat dissipation device for multi-path heat transfer in open-air caves, characterized by: The invention comprises at least two squid-like flexible heat pipes, a heat conductor having the same number as the squid-like flexible heat pipes, and a heat sink; One end of each squid-like flexible heat pipe is connected to the heat conductor; the other ends of all the squid-like flexible heat pipes are centrally arranged in the radiator.

2. The flexible heat dissipation device for multi-path heat transfer in open-air caves according to claim 1 is characterized in that: The flexible heat dissipation device is in a squid shape.

3. The flexible heat dissipation device for multi-path heat transfer in open-air caves according to claim 1 is characterized in that: The flexible heat dissipation device includes three squid-like flexible heat pipes.

4. The flexible heat dissipation device for multi-path heat transfer in open-air caves according to claim 1 is characterized in that: The three squid-like flexible heat pipes can be bent independently.

5. The flexible heat dissipation device for multi-path heat transfer in open-air caves according to claim 1 is characterized in that: The squid-like flexible heat pipe is a pulsating heat pipe.

6. The flexible heat dissipation device for multi-path heat transfer in open-air caves according to claim 5 is characterized in that: The heating section of each pulsating heat pipe is respectively connected to a heat conductor; and the cooling sections of all the pulsating heat pipes are centrally embedded in a radiator.

7. The flexible heat dissipation device for multi-path heat transfer in open-air caves according to claim 6 is characterized in that: The heating section and cooling section of the pulsating heat pipe are respectively connected to the capillary copper tube; between the heating section and cooling section of the pulsating heat pipe is an insulating section; the insulating section is a polytetrafluoroethylene tube arranged at intervals.

8. The flexible heat dissipation device for multi-path heat transfer in open-air caves according to claim 7 is characterized in that: The heat conductor is a rectangular metal block, and the capillary copper tubes connected to each of the pulsating heat pipe heating sections are respectively embedded in different rectangular metal blocks.

9. The flexible heat dissipation device for multi-path heat transfer in open-air caves according to claim 7, characterized in that: The radiator is an aluminum radiator, and all the capillary copper tubes connected to the cooling sections of the pulsating heat pipe are embedded in one aluminum radiator.

10. A method for using the flexible heat dissipation device for multi-path heat transfer in open-air caves according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Use thermal imaging analysis method to determine multiple heat load points of the open-air caves; S2, arranging a plurality of heat conductors at a plurality of different heat load points, respectively, and embedding a plurality of heating sections of the squid-like flexible heat pipes into different heat conductors, respectively; S3, extending the cooling sections of the multiple squid-like flexible heat pipes to a cool and ventilated place outside the cave by bending, and embedding all the cooling sections of the squid-like flexible heat pipes in a radiator; S4, installing micro temperature sensors on the cooling section, heating section and insulation section of the squid-like flexible heat pipe to detect the temperature information of the squid-like flexible heat pipe in real time; S5, installing a heat flow meter at the heating section of the squid-like flexible heat pipe and at the part of the squid-like flexible heat pipe in contact with the cave, and collecting heat inflow and outflow data of the squid-like flexible heat pipe in real time; S6. Evaluate the working status of the flexible heat dissipation device based on the temperature information, heat inflow and heat outflow data of the squid-like flexible heat pipe.