Long-distance transmission heat pipe heat exchanger based on gravity backflow and micropump

Abstract

The application discloses a long-distance transmission heat pipe heat exchanger based on gravity backflow and a micropump, and belongs to the technical field of heat exchangers. The heat exchanger comprises a base, supporting legs are fixedly arranged at the bottom of the base, an intelligent detection control screen is fixedly arranged at one side of the base, and a first heat exchange tank is fixedly arranged at the top of the base. The double heat exchange tanks are symmetrically arranged and cooperated with a multi-pipeline intercommunication structure, so that the actual problems of the single heat exchange path of the traditional heat pipe heat exchanger, poor adaptability of long-distance medium transmission, low heat exchange efficiency, insufficient manual control precision, difficult balance of the temperature and pressure of the double tanks, lack of safety early warning and data storage mechanism and the like are solved. The overall structural layout is scientific and regular, the gravity backflow transmission characteristics and the intelligent automatic control capability are considered, the heat exchanger can be widely adapted to various complex working conditions such as chemical industry, waste heat recovery and industrial fluid heat exchange, and has the comprehensive advantages of stable operation, controllable energy consumption, strong adaptability and high automation degree.

Description

Technical Field

[0001] This invention relates to the field of heat exchanger technology, and more specifically, to a long-distance heat pipe heat exchanger based on gravity reflux and a micro-pump. Background Technology

[0002] In fields such as industrial waste heat recovery, chemical fluid heat exchange, and HVAC energy utilization, heat pipe heat exchangers are core equipment for realizing heat exchange between hot and cold media and cascade energy utilization. Existing conventional heat pipe heat exchangers mostly adopt a single-tank independent heat exchange structure with a simple piping layout, relying solely on simple inlet and outlet liquid lines to complete medium transport and heat exchange. This mostly only meets the needs of short-distance, low-flow heat exchange operations. Traditional equipment generally uses fixed piping ratios and manual valve control, lacking modular design in its overall structure. It rarely adopts a dual-tank interconnected structure and lacks piping planning adapted to long-distance gravity-flow transport of media. In long-distance fluid transport and heat exchange scenarios, it is prone to problems such as poor medium flow and non-closed-loop heat exchange circuits, making it difficult to adapt to the continuous operation requirements of complex industrial conditions.

[0003] Traditional long-distance heat pipe heat exchangers have long suffered from flawed heat exchange path design. The tanks lack a regular media flow guiding structure, with hot and cold media flowing directly in and out, resulting in short contact time with heat exchange components and insufficient heat exchange. Furthermore, they generally lack adjustable sealing components, leading to chaotic steam and media flow within the tank and unstable heat exchange efficiency. Simultaneously, most similar equipment on the market lacks a systematic intelligent monitoring and control system, failing to collect key parameters such as pipeline temperature and tank steam pressure in real time. They rely on manual on-site inspections and experience-based manual valve adjustments, making it difficult to accurately match heat exchange requirements. Dual-tank heat exchangers generally lack upper and lower steam connection pipelines and centralized waste liquid discharge structures, making it impossible to achieve inter-tank temperature and pressure balance regulation. The coordination and adaptability of gravity reflux and power micro-pumps are poor, resulting in high energy consumption and the absence of over-limit alarms and data traceability functions. Their operational stability and level of intelligence fail to meet the high-precision, unmanned control requirements of modern industry. Summary of the Invention

[0004] The purpose of this invention is to provide a long-distance heat pipe heat exchanger based on gravity reflux and micro-pumps to solve the problems mentioned in the background art.

[0005] A long-distance heat pipe heat exchanger based on gravity reflux and a micro-pump includes a base, with supporting legs fixedly mounted at the bottom of the base. An intelligent detection and control screen is fixedly mounted on one side of the base. A first heat exchange tank is fixedly mounted on the top of the base. A second heat exchange tank is fixedly mounted on one side of the first heat exchange tank on the top of the base. Both the second and first heat exchange tanks have inlet buffer chambers fixedly mounted on their tops, and inlet pipes are fixedly mounted on the tops of both inlet buffer chambers. Both the first and second heat exchange tanks have outlet buffer chambers fixedly mounted at the bottom of the base, and outlet pipes are fixedly mounted on the bottoms of both outlet buffer chambers. A waste liquid discharge pipe is fixedly connected between the two outlet pipes. A steam inlet pipe is fixedly mounted on one side of the top of both the first and second heat exchange tanks. Top steam connection pipes are fixedly installed on the other side of the top of both the first and second heat exchange tanks. The two top steam connection pipes are fixedly connected and internally communicate with each other. Waste gas discharge pipes are fixedly installed on one side of the bottom of both the first and second heat exchange tanks. Bottom steam connection pipes are fixedly installed on the other side of the bottom of both the first and second heat exchange tanks. The two bottom steam connection pipes are fixedly connected and internally communicate with each other. An intelligent heat exchange control system is installed inside the intelligent detection and control panel. A heat exchange mechanism is installed inside both the first and second heat exchange tanks. Electrically controlled butterfly valves are fixedly installed inside the liquid inlet pipe, liquid outlet pipe, steam inlet pipe, top steam connection pipe, bottom steam connection pipe, and waste gas discharge pipe. Temperature measuring modules are fixedly installed on one side of each of the multiple electrically controlled butterfly valves.

[0006] Preferably, the heat exchange mechanism includes two isolation plates fixedly disposed inside the first heat exchange tank and the second heat exchange tank, respectively located at the bottom of the liquid inlet buffer chamber and the top of the liquid outlet buffer chamber. Multiple heat exchange tubes are fixedly connected inside the two isolation plates between the inside of the first heat exchange tank and the second heat exchange tank, and the multiple heat exchange tubes are used to connect the inside of the liquid inlet buffer chamber and the liquid outlet buffer chamber.

[0007] Preferably, multiple guide plates are fixedly installed inside the first heat exchange tank and the second heat exchange tank on the outside of the heat exchange tube. The multiple guide plates are arranged left and right at a certain distance from top to bottom inside the first heat exchange tank and the second heat exchange tank. The cross-section of the first heat exchange tank is semi-circular, which is used to form an S-shaped route inside the first heat exchange tank and the second heat exchange tank. A sealing mechanism is provided on the top of both liquid inlet buffer chambers.

[0008] Preferably, the sealing mechanism includes a fixed frame fixedly mounted on the top of the two liquid inlet buffer chambers. A sealing motor is fixedly mounted on the top of the fixed frame. A screw is fixedly sleeved on the bottom output end of the sealing motor. The screw is vertically rotatable inside the fixed frame. A sliding frame is threadedly mounted on the screw inside the fixed frame. The sliding frame is slidably mounted on one side of the fixed frame and has a connecting rod fixedly mounted at its bottom. The connecting rod passes through the liquid inlet buffer chamber and the isolation plate and extends into the base. Under the drive of the sliding frame, it slides up and down inside the base. A sealing plate is fixedly connected to the connecting rod inside the base. The sealing plate is movably sleeved on the outside of the heat exchange tube and slides up and down inside the base. The sealing plate is semi-circular and is used to fit against the uppermost guide plate inside the base to seal the inside of the base.

[0009] Preferably, the intelligent heat exchange control system includes a main control unit, a data acquisition unit, and an execution control unit. The data acquisition unit is electrically connected to multiple temperature measurement modules to collect medium temperature data at each electrically controlled butterfly valve in real time. The main control unit is electrically connected to the intelligent detection and control panel, the data acquisition unit, and the execution control unit. The execution control unit is electrically connected to multiple electrically controlled butterfly valves and a sealing motor to receive control commands from the main control unit and drive the corresponding components to operate.

[0010] Preferably, the data acquisition unit further includes pressure sensors respectively installed inside the first heat exchange tank and the second heat exchange tank. The pressure sensors are electrically connected to the main control unit and are used to collect steam pressure data inside the two heat exchange tanks. The main control unit feeds back the temperature data and pressure data to the intelligent detection and control screen for display in real time, and presets temperature thresholds and pressure thresholds. When the data exceeds the thresholds, the intelligent detection and control screen issues an alarm prompt.

[0011] Preferably, the execution control unit can adjust the opening degree of each electrically controlled butterfly valve according to the instructions of the main control unit to achieve precise control of the liquid inlet, steam inlet and exhaust gas discharge. When the temperature collected by the temperature measuring module is lower than the preset value, the main control unit controls the electrically controlled butterfly valve at the steam inlet pipe to increase the opening degree, and at the same time controls the electrically controlled butterfly valve at the liquid inlet pipe to adjust the opening degree to ensure that the heat exchange efficiency of the medium in the heat exchange tube meets the standard.

[0012] Preferably, the intelligent heat exchange control system has a linkage control function. When the temperature difference between the first heat exchange tank and the second heat exchange tank exceeds the preset range, the main control unit adjusts the opening of the electrically controlled butterfly valves at the corresponding steam inlet pipe, top steam connection pipe and bottom steam connection pipe of the two heat exchange tanks to balance the temperature and pressure inside the two heat exchange tanks and achieve synchronous heat exchange.

[0013] Preferably, the intelligent detection and control panel supports switching between manual and automatic control modes. In manual mode, the opening degree of each electrically controlled butterfly valve and the start and stop of the sealing motor can be manually adjusted through the intelligent detection and control panel. In automatic mode, the main control unit automatically completes the regulation of the heat exchange process according to the real-time data collected by the data acquisition unit and the preset program. The intelligent heat exchange control system can store historical operating data and supports data export and query.

[0014] Compared with the prior art, the advantages of this invention are: By adopting a symmetrical layout of dual heat exchange tanks and a multi-pipe interconnection structure, integrating an intelligent detection and control panel, a global temperature measurement module, an electrically controlled butterfly valve, and a dedicated intelligent heat exchange control system, along with an internal heat exchange mechanism, a flow guiding structure, and an adaptive sealing mechanism, this system comprehensively solves many practical pain points of traditional heat pipe heat exchangers, such as a single heat exchange path, poor adaptability to long-distance medium transmission, low heat exchange efficiency, insufficient precision of manual control, difficulty in balancing temperature and pressure between the two tanks, and the lack of safety warning and data retention mechanisms. The overall structure is scientifically and systematically designed, taking into account both gravity reflux transmission characteristics and intelligent automatic control capabilities. It can be widely adapted to various complex working conditions such as chemical processing, waste heat recovery, and industrial fluid heat exchange, and has comprehensive advantages such as stable operation, controllable energy consumption, strong adaptability, and high degree of automation.

[0015] This device adopts a dual-body parallel layout of the first and second heat exchange tanks. Top and bottom steam connection pipes enable bidirectional interconnection of the internal steam circuits of the two tanks. A waste liquid discharge pipe connects the two sets of outlet pipes for centralized and unified waste liquid discharge. A stable installation support structure is formed by the base and support legs. Multiple sets of inlet pipes, outlet pipes, steam inlet pipes, and waste gas outlet pipes construct a complete closed-loop heat exchange pipeline, completely breaking the structural limitations of traditional single-tank heat exchangers. It perfectly adapts to long-distance media transmission modes combining gravity recirculation and micro-pump drive. The well-organized multi-pipeline layout effectively avoids problems such as media turbulence, pipeline stagnation, and partial blockage during long-distance transmission, allowing hot and cold media to circulate smoothly along a preset path. This significantly improves the smoothness and continuity of media transmission in high-flow, long-distance industrial heat exchange scenarios, and lays a solid structural foundation for simultaneous dual-tank heat exchange and steam recycling.

[0016] This invention features a dedicated heat exchange mechanism consisting of isolation plates and heat exchange tubes inside a dual heat exchange tank. Combined with staggered guide plates and an S-shaped media flow path formed by the semi-circular tank structure, it completely changes the traditional short-path heat exchange mode of straight-in and straight-out heat exchangers. This effectively extends the contact time between the hot and cold media and the heat exchange tube walls inside the tank, allowing for more uniform and thorough heat transfer and significantly improving overall heat exchange efficiency from a physical structural perspective. Simultaneously, an independent sealing mechanism is provided. A sealing motor drives a screw to rotate, causing the sliding frame and connecting rod to move vertically, thereby controlling the semi-circular sealing plate to adhere to the guide plate and complete the sealing of the internal space. This allows for flexible adjustment of the heat exchange space and media flow area within the tank according to the media flow rate and heat exchange power requirements. It is adaptable to heat exchange operations with media of different viscosities and temperatures, offering high structural flexibility and significantly expanding the heat exchanger's operating condition adaptability to meet diverse industrial heat exchange needs.

[0017] This equipment is equipped with comprehensive parameter monitoring hardware and a layered intelligent heat exchange control system. Temperature measurement modules are installed inside each pipeline to collect the temperature of the medium surrounding the electrically controlled butterfly valves in real time. Simultaneously, pressure sensors are added inside the heat exchange tank to collect steam pressure data. All collected data can be transmitted in real time to the intelligent monitoring and control screen for intuitive visualization, completely eliminating the outdated operating mode of traditional heat exchangers that relies on manual on-site inspections, visual observation, and experience-based adjustments. The system presets fixed temperature and pressure safety thresholds. Once the real-time monitored data exceeds the safe range, an alarm is immediately triggered on the intelligent monitoring and control screen. This allows for the immediate detection of abnormal operating conditions such as over-temperature and over-pressure, preventing safety accidents such as pipeline leaks, equipment overload damage, and steam leakage. This significantly improves the safety protection capability and fault prediction capability of the heat exchanger during long-term continuous operation.

[0018] The intelligent heat exchange control system of this invention possesses multiple functionalities, including free mode switching, multi-component linkage control, and historical data storage and retrieval. It supports flexible switching between manual and automatic control modes. In manual mode, the opening degree of each electrically controlled butterfly valve and the start / stop operation of the sealing motor can be precisely controlled directly through the intelligent detection and control panel. In automatic mode, it can autonomously adjust the flow rate and steam supply according to a preset program based on real-time temperature and pressure data. Simultaneously, the system can adjust the opening degree of each electrically controlled butterfly valve in real time based on the temperature and pressure difference data of the two heat exchange tanks to balance the temperature and pressure within the tanks, achieving synchronous and balanced heat exchange between the two tanks. It can also store historical equipment operating data for a long period and support export and retrieval, facilitating subsequent operating condition analysis, equipment maintenance, and process parameter optimization. This reduces manual monitoring and intervention throughout the process, effectively lowering labor costs and intensity, and improving the level of automated equipment management and long-term economic practicality. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention; Figure 3 This is a cross-sectional schematic diagram of the first heat exchange tank structure of the present invention; Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle; Figure 5 This is a schematic diagram of the heat exchange mechanism of the present invention; Figure 6 This is a schematic diagram of the fixing frame structure of the present invention; Figure 7 This is a schematic diagram of the sealing plate structure of the present invention; Figure 8 This is a schematic diagram of the top steam connection pipe structure of the present invention.

[0020] The following are the labeling instructions in the diagram: 1. Base; 10. Support leg; 11. Intelligent detection and control panel; 12. First heat exchange tank; 13. Second heat exchange tank; 14. Inlet buffer tank; 15. Outlet buffer tank; 16. Inlet pipe; 17. Outlet pipe; 18. Steam inlet pipe; 19. Top steam connection pipe; 101. Bottom steam connection pipe; 102. Electrically controlled butterfly valve; 103. Exhaust gas discharge pipe; 104. Waste liquid discharge pipe; 105. Temperature measuring module; 2. Fixing frame; 20. Sealing motor; 21. Screw; 22. Sliding frame; 23. Connecting rod; 24. Sealing plate; 3. Isolation plate; 30. Heat exchange tube; 31. Guide plate. Detailed Implementation

[0021] Example: Please refer to Figures 1-8A long-distance heat pipe heat exchanger based on gravity reflux and a micro-pump includes a base 1, a support leg 10 fixedly mounted at the bottom of the base 1, an intelligent detection and control screen 11 fixedly mounted on one side of the base 1, a first heat exchange tank 12 fixedly mounted at the top of the base 1, a second heat exchange tank 13 fixedly mounted on one side of the first heat exchange tank 12 at the top of the base 1, liquid inlet buffer chambers 14 fixedly mounted at the top of both the second heat exchange tank 13 and the first heat exchange tank 12, and liquid inlet pipes 16 fixedly mounted at the top of both liquid inlet buffer chambers 14, liquid outlet buffer chambers 15 fixedly mounted at the bottom of both the first heat exchange tank 12 and the second heat exchange tank 13, and liquid outlet pipes 17 fixedly mounted at the bottom of both liquid outlet buffer chambers 15, with a waste liquid discharge pipe 104 fixedly connected between the two liquid outlet pipes 17, and steam inlet pipes 18 fixedly mounted on one side of the top of both the first heat exchange tank 12 and the second heat exchange tank 13. A top steam connection pipe 19 is fixedly installed on the other side of the top, and the two top steam connection pipes 19 are fixedly connected. A waste gas discharge pipe 103 is fixedly installed on one side of the bottom of the first heat exchange tank 12 and the second heat exchange tank 13. A bottom steam connection pipe 101 is fixedly installed on the other side of the bottom of the first heat exchange tank 12 and the second heat exchange tank 13, and the two bottom steam connection pipes 101 are fixedly connected. An intelligent heat exchange control system is installed inside the intelligent detection and control panel 11. A heat exchange mechanism is installed inside the first heat exchange tank 12 and the second heat exchange tank 13. An electrically controlled butterfly valve 102 is fixedly installed inside the liquid inlet pipe 16, liquid outlet pipe 17, steam inlet pipe 18, top steam connection pipe 19, bottom steam connection pipe 101 and waste gas discharge pipe 103. A temperature measuring module 105 is fixedly installed on one side of each of the multiple electrically controlled butterfly valves 102. During use, the support leg 10 provides stable support for the entire device. The medium enters the inlet buffer chamber 14 through the inlet pipe 16 and then flows into the heat exchange tank to complete heat exchange. After heat exchange, the medium passes through the outlet buffer chamber 15 and the outlet pipe 17 and is collected into the waste liquid discharge pipe 104 for unified discharge. Steam enters the tank through the steam inlet pipe 18 and achieves steam circulation between the two tanks through the top steam connection pipe 19 and the bottom steam connection pipe 101. The electrically controlled butterfly valve 102 controls the on / off state and flow rate of each pipeline. The temperature measurement module 105 collects the temperature of the medium in the pipeline in real time. The intelligent detection and control panel 11 relies on the built-in system to coordinate and manage the overall operation status of the machine. By using a symmetrical layout of two heat exchange tanks and a multi-pipe interconnection structure, a long-distance heat exchange circuit adapted to gravity reflux and micro-pump cooperation is constructed. The basic monitoring and control of pipeline flow and temperature is achieved by relying on the electrically controlled butterfly valve 102 and the temperature measurement module 105. The overall structure is well-organized, the support is stable, and the medium and steam flow paths are reasonably planned, providing basic hardware support for long-distance stable heat exchange.

[0022] Specifically, the heat exchange mechanism includes two partition plates 3 fixedly installed above and below the first heat exchange tank 12 and the second heat exchange tank 13. The two partition plates 3 are located at the bottom of the inlet buffer chamber 14 and the top of the outlet buffer chamber 15, respectively. Multiple heat exchange tubes 30 are fixedly connected between the interior of the first heat exchange tank 12 and the second heat exchange tank 13 inside the two partition plates 3. The multiple heat exchange tubes 30 are used to connect the interior of the inlet buffer chamber 14 and the outlet buffer chamber 15. In use, the partition plates 3 arranged above and below divide the interior of the heat exchange tank into independent buffer chambers and heat exchange chambers. The medium flowing in from the inlet buffer chamber 14 is evenly distributed into the interior of the multiple heat exchange tubes 30, and flows vertically along the heat exchange tubes 30 to the outlet buffer chamber 15 for flow guidance and collection. The steam in the heat exchange tank flows around the outer wall of the heat exchange tubes 30 and exchanges heat with the medium inside the tubes in the opposite direction. The cavity is partitioned by the isolation plate 3, and a distributed heat exchange channel is formed with multiple heat exchange tubes 30. This can evenly distribute the medium and increase the heat exchange contact area between the hot and cold media, avoiding uneven heat exchange caused by concentrated medium flow. This effectively improves the basic heat exchange efficiency and regulates the medium flow path to meet the requirements of long-distance stable transmission.

[0023] Specifically, multiple guide plates 31 are fixedly installed inside the first heat exchange tank 12 and the second heat exchange tank 13 on the outside of the heat exchange tube 30. These guide plates 31 are arranged horizontally and vertically at a certain distance from top to bottom inside the first heat exchange tank 12 and the second heat exchange tank 13. The first heat exchange tank 12 has a semi-circular cross-section, which forms an S-shaped path inside the first heat exchange tank 12 and the second heat exchange tank 13. Both inlet buffer chambers 14 are equipped with sealing mechanisms at their tops. During use, the semi-circular tank structure, combined with the staggered left-right arrangement of the guide plates 31, guides and blocks the steam flow inside the tank, forcing the steam to flow slowly along an S-shaped meandering path outside the heat exchange tube 30, extending the contact time between the steam and the outer wall of the heat exchange tube 30. The sealing mechanisms can seal and isolate the inlet buffer chambers 14 and the space inside the tanks according to the operating conditions. By using guide plate 31 in conjunction with the semi-circular tank to construct an S-shaped steam flow path, the traditional direct-flow steam direction is changed, significantly extending the heat exchange time and making the heat transfer more thorough and uniform. At the same time, a sealing mechanism installation position is reserved, which can flexibly adjust the heat exchange space inside the tank, further improving the heat exchange effect and equipment adjustability.

[0024] Specifically, the sealing mechanism includes a fixed frame 2 fixedly installed on the top of the two liquid inlet buffer chambers 14. A sealing motor 20 is fixedly installed on the top of the fixed frame 2. A screw 21 is fixedly sleeved at the bottom output end of the sealing motor 20. The screw 21 is vertically rotatably installed inside the fixed frame 2. A sliding frame 22 is threadedly sleeved inside the fixed frame 2. The sliding frame 22 is slidably installed on one side of the fixed frame 2 and a connecting rod 23 is fixedly installed at the bottom. The connecting rod 23 passes through the liquid inlet buffer chamber 14 and the isolation plate 3 and extends into the base 1. Under the drive of the sliding frame 22, it slides up and down inside the base 1. A sealing plate 24 is fixedly connected to the connecting rod 23 inside the base 1. The sealing plate 24 is movably sleeved on the outside of the heat exchange tube 30 and slides up and down inside the base 1. The sealing plate 24 is semi-circular and is used to fit against one side of the guide plate 31 at the top inside the base 1 to seal the inside of the base 1. In operation, after the sealing motor 20 starts, it drives the screw 21 to rotate in the forward or reverse direction. This, via threaded transmission, causes the sliding frame 22 to slide vertically along the fixed frame 2, simultaneously moving the connecting rod 23 and the sealing plate 24 up and down. This allows the semi-circular sealing plate 24 to either fit against or detach from the guide plate 31, achieving switching between sealing and opening the internal flow space of the heat exchange tank. The motor-driven screw transmission enables automatic lifting and sealing of the sealing plate 24, eliminating the need for manual adjustment of the partition structure. This high degree of automation, combined with the semi-circular structure's perfect fit to the tank's internal shape and excellent sealing performance, allows for the division of heat exchange zones as needed, blocking media and steam turbulence, and adapting to varying flow rates and heat exchange power requirements.

[0025] Specifically, the intelligent heat exchange control system includes a main control unit, a data acquisition unit, and an execution control unit. The data acquisition unit is electrically connected to multiple temperature measurement modules 105 to collect medium temperature data at each electrically controlled butterfly valve 102 in real time. The main control unit is electrically connected to the intelligent detection and control panel 11, the data acquisition unit, and the execution control unit. The execution control unit is electrically connected to multiple electrically controlled butterfly valves 102 and the sealing motor 20 to receive control commands from the main control unit and drive the corresponding components to operate. In use, the data acquisition unit receives temperature signals collected by all temperature measurement modules 105 in real time and transmits them to the main control unit. After analyzing and processing the data, the main control unit feeds the information back to the intelligent detection and control panel 11 for display and sends control commands to the execution control unit. The execution control unit then drives the electrically controlled butterfly valves 102 to adjust their opening or start and stop the sealing motor 20 to complete the sealing action. By building an intelligent control core through a hierarchical unit architecture, a closed-loop management system is achieved, which enables automatic acquisition, centralized analysis, command issuance, and component execution of temperature data. This system integrates and links various monitoring and execution components, eliminating the need for manual individual control and realizing systematic intelligent management of equipment operation.

[0026] Specifically, the data acquisition unit also includes pressure sensors installed inside the first heat exchange tank 12 and the second heat exchange tank 13, respectively. These pressure sensors are electrically connected to the main control unit and are used to collect steam pressure data inside the two heat exchange tanks. The main control unit feeds back the temperature and pressure data to the intelligent detection and control screen 11 in real time for display. Preset temperature and pressure thresholds are provided; when the data exceeds the thresholds, the intelligent detection and control screen 11 issues an alarm. During operation, the pressure sensors detect changes in steam pressure inside the heat exchange tanks in real time and transmit this data synchronously to the data acquisition unit. This data, along with the temperature data from the temperature measurement module 105, is then aggregated to the main control unit. The main control unit displays both parameters in real time and compares them with the built-in preset thresholds. Once a parameter exceeds the limit, an audible and visual alarm is immediately triggered on the intelligent detection and control screen 11. By adding pressure sensors, simultaneous monitoring of temperature and pressure parameters is achieved, improving the dimensions of equipment operating parameter acquisition. Real-time visualization facilitates intuitive understanding of the operating conditions by staff, and automatic alarms for exceeding limits can promptly detect potential abnormalities, effectively preventing equipment damage and safety accidents caused by over-temperature and over-pressure.

[0027] Specifically, the execution control unit can adjust the opening degree of each electrically controlled butterfly valve 102 according to the instructions of the main control unit to achieve precise control of the liquid inlet flow, steam inlet flow, and exhaust gas discharge. When the temperature collected by the temperature measuring module 105 is lower than the preset value, the main control unit controls the electrically controlled butterfly valve 102 at the steam inlet pipe 18 to increase its opening degree, and at the same time controls the electrically controlled butterfly valve 102 at the liquid inlet pipe 16 to adjust its opening degree, ensuring that the heat exchange efficiency of the medium in the heat exchange tube 30 meets the standard. In use, the main control unit determines whether the heat exchange conditions meet the standard based on real-time temperature data. When the detected heat exchange temperature is too low, it sends an adjustment command to the execution control unit, which then precisely controls the opening degree of the electrically controlled butterfly valves 102 corresponding to the steam inlet pipe 18 and the liquid inlet pipe 16, changing the steam supply and medium feed ratio, and dynamically matching the operating parameters required for heat exchange. The control unit enables precise automatic adjustment of the opening of the electrically controlled butterfly valve 102. It can dynamically adjust the medium and steam flow based on real-time temperature, eliminating the need for repeated manual parameter adjustments. It always maintains the heat exchange efficiency within the standard range, with high control accuracy and fast response speed, making it suitable for application scenarios with dynamic changes in operating conditions.

[0028] Specifically, the intelligent heat exchange control system has a linkage control function. When the temperature difference between the first heat exchange tank 12 and the second heat exchange tank 13 exceeds the preset range, the main control unit adjusts the opening of the electrically controlled butterfly valves 102 at the corresponding steam inlet pipe 18, top steam connection pipe 19, and bottom steam connection pipe 101 of the two heat exchange tanks to balance the temperature and pressure inside the two heat exchange tanks and achieve synchronous heat exchange. During use, the main control unit compares the temperature and pressure parameters of the first heat exchange tank 12 and the second heat exchange tank 13 in real time. When the parameter difference between the two tanks exceeds the standard, it linkage controls the opening of the electrically controlled butterfly valves 102 in each connecting pipe to adjust the steam flow and pressure replenishment in the tanks, gradually leveling the temperature and pressure difference between the two tanks. Through the system linkage control function, the operating conditions of the two heat exchange tanks are automatically balanced, solving the problems of asynchronous heat exchange and large parameter deviations that are common in traditional two-tank heat exchangers. This ensures that the two heat exchange tanks always maintain synchronous and balanced operation, improving the overall equipment's operational consistency and heat exchange stability.

[0029] Specifically, the intelligent detection and control panel 11 supports switching between manual and automatic control modes. In manual mode, the opening degree of each electrically controlled butterfly valve 102 and the start and stop of the sealing motor 20 can be manually adjusted through the intelligent detection and control panel 11. In automatic mode, the main control unit automatically completes the regulation of the heat exchange process according to the real-time data collected by the data acquisition unit and the preset program. The intelligent heat exchange control system can store historical operating data and supports data export and query. During use, the operator can freely switch the control mode on the intelligent detection and control panel 11 according to the on-site working conditions. In manual mode, the operator can manually intervene to regulate the operating status of each actuator. In automatic mode, the system autonomously completes parameter acquisition, analysis and regulation throughout the process. At the same time, the system records and stores the operating data throughout the process, and historical operating information can be retrieved and exported at any time. By switching between dual control modes, it adapts to different management and control needs, taking into account both manual emergency control and unmanned automatic operation scenarios. The historical data storage and query function facilitates later equipment maintenance, operating condition analysis and process optimization, greatly improving the ease of use and long-term operation and maintenance value of the equipment.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A long-distance heat pipe heat exchanger based on gravity reflux and micro-pump, comprising a base (1), characterized in that: The base (1) is fixedly provided with a support leg (10) at the bottom. The base (1) is fixedly provided with an intelligent detection and control screen (11) on one side. The base (1) is fixedly provided with a first heat exchange tank (12) at the top. The base (1) is fixedly provided with a second heat exchange tank (13) on one side of the first heat exchange tank (12) at the top. The second heat exchange tank (13) and the first heat exchange tank (12) are both fixedly provided with liquid inlet buffer chambers (14) at the top. The tops of the two liquid inlet buffer chambers (14) are both fixedly provided with... There is an inlet pipe (16). The first heat exchange tank (12) and the second heat exchange tank (13) are both fixedly provided with an outlet buffer chamber (15) at the bottom of the base (1). The bottom of the two outlet buffer chambers (15) are both fixedly provided with outlet pipes (17). The two outlet pipes (17) are fixedly connected to a waste liquid discharge pipe (104). The top side of the first heat exchange tank (12) and the second heat exchange tank (13) are both fixedly provided with a steam inlet pipe (18). The first heat exchange tank (12) and the second heat exchange tank (13) are both fixedly provided with a steam inlet pipe (18). 13) Top steam connection pipes (19) are fixedly installed on the other side of the top. The two top steam connection pipes (19) are fixedly connected and internally connected. Waste gas discharge pipes (103) are fixedly installed on one side of the bottom of the first heat exchange tank (12) and the second heat exchange tank (13). Bottom steam connection pipes (101) are fixedly installed on the other side of the bottom of the first heat exchange tank (12) and the second heat exchange tank (13). The two bottom steam connection pipes (101) are fixedly connected and internally connected. The intelligent detection and control screen (11) is equipped with an intelligent heat exchange control system. The first heat exchange tank (12) and the second heat exchange tank (13) are equipped with heat exchange mechanisms. The liquid inlet pipe (16), liquid outlet pipe (17), steam inlet pipe (18), top steam connection pipe (19), bottom steam connection pipe (101) and exhaust gas outlet pipe (103) are all fixedly equipped with electric control butterfly valves (102). Temperature measurement modules (105) are fixedly installed on one side of each of the multiple electric control butterfly valves (102).

2. The long-distance heat pipe heat exchanger based on gravity reflux and micro-pump as described in claim 1, characterized in that: The heat exchange mechanism includes two isolation plates (3) fixedly installed inside the first heat exchange tank (12) and the second heat exchange tank (13), respectively located at the bottom of the liquid inlet buffer chamber (14) and the top of the liquid outlet buffer chamber (15). Inside the two isolation plates (3), multiple heat exchange tubes (30) are fixedly connected between the inside of the first heat exchange tank (12) and the second heat exchange tank (13). The multiple heat exchange tubes (30) are used to connect the inside of the liquid inlet buffer chamber (14) and the liquid outlet buffer chamber (15).

3. A long-distance heat pipe heat exchanger based on gravity reflux and a micropump according to claim 2, characterized in that: Multiple guide plates (31) are fixedly installed inside the first heat exchange tank (12) and the second heat exchange tank (13) on the outside of the heat exchange tube (30). The multiple guide plates (31) are arranged left and right at a certain distance from top to bottom inside the first heat exchange tank (12) and the second heat exchange tank (13). The cross-section of the first heat exchange tank (12) is semi-circular, which is used to form an S-shaped route inside the first heat exchange tank (12) and the second heat exchange tank (13). A sealing mechanism is provided on the top of both liquid inlet buffer chambers (14).

4. A long-distance heat pipe heat exchanger based on gravity reflux and a micropump according to claim 3, characterized in that: The sealing mechanism includes a fixed frame (2) fixedly mounted on the top of the two liquid inlet buffer chambers (14). A sealing motor (20) is fixedly mounted on the top of the fixed frame (2). A screw (21) is fixedly sleeved at the bottom output end of the sealing motor (20). The screw (21) is vertically rotatably mounted inside the fixed frame (2). A sliding frame (22) is threadedly mounted inside the fixed frame (2). The sliding frame (22) slides up and down on one side of the fixed frame (2), and a connecting rod (23) is fixedly mounted at the bottom. The connecting rod (23) passes through the liquid inlet buffer chamber (14) and the isolation plate (3) and extends into the base (1). Under the drive of the sliding frame (22), it slides up and down inside the base (1). The connecting rod (23) is fixedly connected to the sealing plate (24) inside the base (1). The sealing plate (24) is movably sleeved on the outside of the heat exchange tube (30) and slides up and down inside the base (1). The sealing plate (24) is semi-circular and is used to fit against the guide plate (31) at the top inside the base (1) to seal the inside of the base (1).

5. A long-distance heat pipe heat exchanger based on gravity reflux and a micropump according to claim 1, characterized in that: The intelligent heat exchange control system includes a main control unit, a data acquisition unit, and an execution control unit. The data acquisition unit is electrically connected to multiple temperature measurement modules (105) and is used to collect medium temperature data at each electrically controlled butterfly valve (102) in real time. The main control unit is electrically connected to the intelligent detection control panel (11), the data acquisition unit, and the execution control unit respectively. The execution control unit is electrically connected to multiple electrically controlled butterfly valves (102) and a sealing motor (20) and is used to receive control commands from the main control unit and drive the corresponding components to move.

6. A long-distance heat pipe heat exchanger based on gravity reflux and a micropump according to claim 5, characterized in that: The data acquisition unit also includes pressure sensors installed inside the first heat exchange tank (12) and the second heat exchange tank (13), respectively. The pressure sensors are electrically connected to the main control unit and are used to collect steam pressure data inside the two heat exchange tanks. The main control unit feeds back the temperature data and pressure data to the intelligent detection and control screen (11) for display in real time, and presets temperature thresholds and pressure thresholds. When the data exceeds the threshold, the intelligent detection and control screen (11) issues an alarm prompt.

7. A long-distance heat pipe heat exchanger based on gravity reflux and a micropump according to claim 5, characterized in that: The execution control unit can adjust the opening degree of each electric butterfly valve (102) according to the instructions of the main control unit to achieve precise control of liquid inlet, steam inlet and exhaust gas discharge. When the temperature collected by the temperature measuring module (105) is lower than the preset value, the main control unit controls the electric butterfly valve (102) at the steam inlet pipe (18) to increase the opening degree, and at the same time controls the electric butterfly valve (102) at the liquid inlet pipe (16) to adjust the opening degree to ensure that the heat exchange efficiency of the medium in the heat exchange tube (30) meets the standard.

8. A long-distance heat pipe heat exchanger based on gravity reflux and a micropump according to claim 7, characterized in that: The intelligent heat exchange control system has a linkage control function. When the temperature difference between the first heat exchange tank (12) and the second heat exchange tank (13) exceeds the preset range, the main control unit adjusts the opening of the electrically controlled butterfly valve (102) at the corresponding steam inlet pipe (18), top steam connection pipe (19), and bottom steam connection pipe (101) of the two heat exchange tanks to balance the temperature and pressure inside the two heat exchange tanks and achieve synchronous heat exchange.

9. A long-distance heat pipe heat exchanger based on gravity reflux and a micropump according to claim 5, characterized in that: The intelligent detection and control panel (11) supports switching between manual and automatic control modes. In manual mode, the opening degree of each electrically controlled butterfly valve (102) and the start and stop of the sealing motor (20) can be manually adjusted through the intelligent detection and control panel (11). In automatic mode, the main control unit automatically completes the regulation of the heat exchange process according to the real-time data collected by the data acquisition unit and the preset program. The intelligent heat exchange control system can store historical operating data and supports data export and query.

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