Forming device for measuring liquid bridge between heating balls

Abstract

The utility model relates to the technical field of formation of a liquid bridge between heating balls, and discloses a forming device for measuring the liquid bridge between the heating balls, which comprises a first forming module, and a second forming module and a third forming module which are arranged outside the first forming module, the first forming module comprises a first height adjuster, a constant-temperature heating platform and a heat conduction blank; the second forming module comprises a second height adjuster, a vertical displacement platform, a bidirectional horizontal displacement platform, a first motor fixing and supporting plate, a first motor and a first ball body; the third forming module comprises a horizontal displacement supporting frame, a ball screw motor, a ball screw, a second motor, a second ball and a second motor fixing supporting plate. According to the device, the constant-temperature heating platform in the first forming module is matched with the heat conduction blank, a stable high-temperature thermal field can be provided, the high-temperature working condition is effectively simulated, and the defect that high-temperature thermal field simulation is difficult to achieve through an existing observation device is overcome.

Description

Technical Field

[0001] This utility model relates to the field of liquid bridge formation technology between heated spheres, specifically a device for measuring the formation of liquid bridges between heated spheres. Background Technology

[0002] The study of liquid bridge formation and fracture processes is an important theoretical support for the design of related processes such as particle processing and material synthesis in industrial production. Its core application scenarios cover liquid phase mass transfer analysis in the dynamic contact process of particles under high temperature conditions. Related observation devices are widely used in materials science, chemical engineering and other fields to capture the liquid migration and liquid bridge evolution laws between particles, and provide experimental data for process optimization and theoretical research.

[0003] Existing research on interparticle liquid transport largely focuses on static capillary transport at room and near-room temperatures, lacking a systematic analysis of the coupling mechanism between high-temperature thermally driven phase transitions and Marangoni convection induced by thermal gradients and liquid transport. Transient studies on liquid bridge formation, fracture, and reconstruction are severely lacking, failing to provide comprehensive theoretical support for practical process design. Existing observation devices can only simulate static liquid volume conditions at low temperatures, making it difficult to simulate the actual conditions of dynamic contact between high-temperature thermal fields and particles. Furthermore, they cannot capture the liquid migration trajectory caused by thermally induced phase transitions and the transient formation process of liquid bridges, resulting in significant deviations between experimental data and actual industrial conditions. Therefore, a device for measuring the formation of liquid bridges between heated spheres is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a device for measuring the formation of liquid bridges between heated spheres, thereby solving the technical problem of significant deviations between the experimental data and actual industrial operating conditions.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for measuring the formation of liquid bridges between heated spheres, comprising:

[0006] The first forming module, and the second forming module and the third forming module disposed outside the first forming module, wherein the first forming module includes a first height adjuster, a constant temperature heating platform and a heat-conducting blank, the heat-conducting blank being fixed on the constant temperature heating platform, and the constant temperature heating platform being fixed on the first height adjuster;

[0007] The second forming module includes a second height adjuster, a vertical displacement platform, a bidirectional horizontal displacement platform, a first motor fixing support plate, a first motor and a first ball, wherein the first motor is fixed on the first motor fixing support plate, and the connecting end of the first ball is mechanically connected to the first motor.

[0008] The third forming module includes a horizontal displacement support frame, a ball screw motor, a ball screw, a second motor, a second ball, and a second motor fixed support plate. The second motor is fixed on the second motor fixed support plate. The center of the second ball and the center of the first ball are on the same horizontal line. The connecting end of the second ball is mechanically connected to the second motor. The coaxial lines of the first ball and the second ball are at the same horizontal height and rotate in opposite directions.

[0009] Adjust the ball screw motor in the third forming module to drive the ball screw to move horizontally, which in turn drives the second motor fixed support plate, which is fixed to the ball screw by bolts, to move synchronously.

[0010] Adjust the first height adjuster in the first forming module so that the heat-conducting blank fixed on the constant temperature heating platform comes into contact with the second sphere in the second forming module;

[0011] Adjust the second height adjuster in the second forming module to keep the first sphere at a certain distance from the heat-conducting blank;

[0012] Adjust the bidirectional horizontal displacement platform in the second forming module to make the first sphere and the second sphere be on the same horizontal axis, and then make fine adjustments through the vertical displacement platform to make the first sphere contact the heat-conducting blank.

[0013] Adjust the constant temperature heating platform in the first forming module to the target temperature, and heat the first sphere and the second sphere to the temperature set by the constant temperature heating platform through the heat conduction of the heat-conducting blank;

[0014] Adjusting the first height adjuster moves the constant temperature heating platform and the heat-conducting blank, causing the heat-conducting blank to separate from the first sphere and the second sphere;

[0015] The first motor in the second forming module and the second motor in the third forming module are started simultaneously. By connecting the motors in forward and reverse directions or by preset the controller parameters, the first motor and the second motor rotate in opposite directions, thereby driving the first ball and the second ball to rotate in opposite directions respectively.

[0016] By using a pipette to transfer liquid onto the surfaces of the first and second spheres in a rotating state, a uniform liquid film is achieved on the heated sphere surface.

[0017] Adjust the ball screw motor in the third forming module and the bidirectional horizontal displacement platform in the second forming module respectively to drive the first ball and the second ball to approach each other, so that the coating liquid between the two balls forms a liquid bridge.

[0018] Adjust the ball screw motor and the bidirectional horizontal displacement platform again to move the first ball and the second ball away from each other, causing the liquid bridge formed to break.

[0019] The entire process of liquid migration, transient formation and fracture of liquid bridges caused by thermal phase transition was observed and recorded, thus completing one measurement and observation.

[0020] Preferably, heating sleeves are added to the connection ends between the first sphere and the first motor, and between the second sphere and the second motor. This can specifically increase the temperature at the connection ends between the first sphere and the first motor, and between the second sphere and the second motor, preventing the transmission stability and temperature consistency of the surrounding experimental area from being affected by excessively low temperatures in these areas. The heating sleeves are additional structures and do not change the original transmission connection relationship between the first motor and the first sphere, or between the second motor and the second sphere, ensuring that the core transmission function of the device is not affected. By precisely heating the connection ends, the temperature environment around the spheres can be optimized, making it suitable for experimental scenarios requiring high temperature accuracy.

[0021] Preferably, the heating sleeve has a ring-shaped embedded design, and the inner wall of the heating sleeve is coaxially fitted with the output shafts of the first motor and the second motor, respectively. A heat-insulating bracket is installed between the outer surface of the heating sleeve and the fixing support plates of the first and second motors. The ring-shaped embedded design, combined with the coaxial fitting, ensures a tight fit between the heating sleeve and the motor output shafts, allowing the heating heat to be applied directly and evenly to the connection end, improving heating efficiency and temperature control accuracy. The heat-insulating bracket effectively prevents heat from diffusing to the fixing support plates of the first and second motors, avoiding deformation or aging of the support plates due to high temperatures, and ensuring the stability and service life of the support structure. The coaxial fitting installation method facilitates positioning, reduces installation difficulty, and ensures that the heating sleeve does not interfere with the normal rotation of the motor output shafts.

[0022] Preferably, the constant temperature heating platform is equipped with a heat insulation cover around its exterior, and the heat insulation cover and the constant temperature heating platform are connected by bolts for easy disassembly. The heat insulation cover can significantly reduce heat loss from the constant temperature heating platform, improve the platform's heating efficiency, reduce energy consumption, and at the same time ensure the stability of the ambient temperature around the platform, preventing high temperatures from affecting other components of the device. The bolted connection design facilitates the installation and removal of the heat insulation cover without affecting the daily maintenance and repair of the constant temperature heating platform. The heat insulation cover protects the constant temperature heating platform, preventing operators from accidentally coming into contact with the high-temperature area of ​​the platform and causing burns, thus improving the safety of the device.

[0023] Preferably, the constant-temperature heating platform and the heat-conducting embryo are located within the inner cavity of the heat insulation cover, and operating windows are provided on both the surface and top of the heat insulation cover. A sealing cover is rotatably connected to the inner wall of the operating window, and a pull groove is provided on the outer surface of the sealing cover. The location of the constant-temperature heating platform and the heat-conducting embryo within the inner cavity of the heat insulation cover further enhances the heat insulation effect, ensures the temperature stability of the platform and the heat-conducting embryo, and provides a stable temperature environment for the experiment. The operating window facilitates experimental operations without disassembling the heat insulation cover, reducing heat loss during operation. The sealing cover can close the operating window when not in operation, maintaining the airtightness of the heat insulation cover, and the pull groove improves the convenience of opening and closing the sealing cover.

[0024] Preferably, the bottom of the heat insulation cover has a clearance groove that matches the first height adjuster, and it is fixed to the edge of the constant temperature heating platform by a snap fastener. The inner wall of the heat insulation cover is lined with a reflective heat insulation layer. The clearance groove design allows the heat insulation cover to adapt to the installation position of the first height adjuster, avoiding interference and ensuring the normal operation of the first height adjuster's height adjustment function for the constant temperature heating platform. The snap fastener fixing method further enhances the firmness of the connection between the heat insulation cover and the constant temperature heating platform, while facilitating quick assembly and disassembly. The reflective heat insulation layer reduces heat loss through radiation, improves heat utilization, further ensures the stability of the temperature inside the heat insulation cover, and reduces the temperature of the outer surface of the heat insulation cover, thus improving safety during use.

[0025] Compared with the prior art, this utility model provides a device for measuring the formation of liquid bridges between heated spheres, which has the following beneficial effects:

[0026] The device for measuring the formation of liquid bridges between heated spheres, through the cooperation of the constant temperature heating platform in the first forming module and the heat-conducting blank, can provide a stable high-temperature thermal field, effectively simulating high-temperature working conditions and making up for the shortcomings of existing observation devices in simulating high-temperature thermal fields.

[0027] The second height adjuster and vertical displacement platform of the second forming module cooperate with the first motor, and the ball screw motor and other components of the third forming module cooperate with the second motor. The first ball and the second ball are coaxial and maintain the same horizontal height and opposite rotation directions, which can realize the simulation of the dynamic contact condition of particles.

[0028] The three forming modules work together to capture the liquid migration trajectory caused by thermal phase change and the transient formation and fracture process of liquid bridges, reducing the deviation between experimental data and actual industrial conditions, and providing support for related theoretical research and practical process design. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0030] Figure 2This is a schematic diagram of the overall left side view of the present invention;

[0031] Figure 3 This is a schematic diagram of the overall front view of the present invention;

[0032] Figure 4 This is a schematic diagram of the overall rear right side view of this utility model;

[0033] Figure 5 This is a schematic diagram of the first motor and its connection structure according to the present invention;

[0034] Figure 6 This is a schematic diagram of the second motor and its connection structure of the present invention;

[0035] Figure 7 This is a schematic diagram of the constant temperature heating platform of this utility model with an added heat insulation cover.

[0036] In the diagram: 1. First forming module; 11. First height adjuster; 12. Constant temperature heating platform; 13. Heat-conducting blank; 14. Heat insulation cover; 15. Operation window; 16. Sealing cover; 17. Pulling groove; 2. Second forming module; 21. Second height adjuster; 22. Vertical displacement platform; 23. Bidirectional horizontal displacement platform; 24. First motor fixing support plate; 25. First motor; 26. First sphere; 3. Third forming module; 31. Horizontal displacement support frame; 32. Ball screw motor; 33. Ball screw; 34. Second motor; 35. Second sphere; 36. Second motor fixing support plate; 37. Heating sleeve. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] This utility model provides a technical solution: a device for measuring the formation of liquid bridges between heated spheres, comprising: (see attached diagram) Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7The first forming module 1, and the second forming module 2 and the third forming module 3 disposed outside the first forming module 1, wherein the first forming module 1 includes a first height adjuster 11, a constant temperature heating platform 12 and a heat-conducting blank 13, the heat-conducting blank 13 is fixed on the constant temperature heating platform 12, and the constant temperature heating platform 12 is fixed on the first height adjuster 11.

[0039] The second forming module 2 includes a second height adjuster 21, a vertical displacement platform 22, a bidirectional horizontal displacement platform 23, a first motor fixing support plate 24, a first motor 25 and a first ball 26, wherein the first motor 25 is fixed on the first motor fixing support plate 24, and the connecting end of the first ball 26 is mechanically connected to the first motor 25.

[0040] The third forming module 3 includes a horizontal displacement support frame 31, a ball screw motor 32, a ball screw 33, a second motor 34, a second ball 35, and a second motor fixing support plate 36. The second motor 34 is fixed on the second motor fixing support plate 36. The center of the second ball 35 is on the same horizontal line as the center of the first ball 26. The connecting end of the second ball 35 is mechanically connected to the second motor 34. The coaxial lines of the first ball 26 and the second ball 35 are at the same horizontal height and rotate in opposite directions.

[0041] Through the coordinated operation of the first forming module 1, the second forming module 2 and the third forming module 3, the actual working conditions of high temperature thermal field and dynamic contact of particles can be accurately simulated. This provides experimental conditions that fit the actual scenario for the observation of liquid migration, transient formation and fracture process of liquid bridge caused by thermal phase change, and fills the gap in the device for measuring liquid bridge characteristics under relevant working conditions.

[0042] The device is equipped with multiple adjustment mechanisms, including a first height adjuster 11, a second height adjuster 21, a vertical displacement platform 22, a bidirectional horizontal displacement platform 23, and a ball screw 33 driven by a ball screw motor 32. It can achieve multi-dimensional and precise position adjustment, accurately control the relative position, spacing, and coaxiality of the first ball 26 and the second ball 35, and ensure the accuracy of the contact heating between the heat-conducting blank 13 and the two balls, thereby improving the convenience of experimental adjustment and the accuracy of measurement.

[0043] The first motor 25 and the second motor 34 drive the first ball 26 and the second ball 35 to rotate in opposite directions. Combined with the liquid transfer operation, a uniform coating can be achieved on the heated spherical surface, avoiding the interference of uneven liquid distribution on the liquid bridge formation process. This ensures the stability and repeatability of the liquid bridge formation and breakage process, and provides a guarantee for the reliability of experimental data.

[0044] The device indirectly heats the two spheres through a constant-temperature heating platform 12 and a heat-conducting embryo 13. The heating method is gentle and uniform, which can accurately maintain the spheres in a set constant temperature state, ensuring the stability of the high-temperature thermal field environment and facilitating the observation of the influence of thermally induced phase change on liquid migration and liquid bridge characteristics.

[0045] Please see Figure 5 and Figure 6 Heating sleeves 37 are provided at the connection ends between the first sphere 26 and the first motor 25, and between the second sphere 35 and the second motor 34. After the device is started, as the first motor 25 drives the first sphere 26 and the second motor 34 drives the second sphere 35, the heating sleeves 37 located at the connection ends between the first sphere 26 and the first motor 25 and between the second sphere 35 and the second motor 34 are activated synchronously to heat the corresponding connection end areas, thereby cooperating with the overall heating system of the device to achieve temperature control of the connection ends and related areas of the spheres.

[0046] The heating sleeve 37 is a ring-shaped embedded design, and its inner wall is coaxially fitted with the output shafts of the first motor 25 and the second motor 34, respectively. A heat-insulating bracket is installed between the outer surface of the heating sleeve 37 and the first motor fixing support plate 24 and the second motor fixing support plate 36. During installation, the ring-shaped embedded heating sleeve 37 is coaxially fitted with the output shafts of the first motor 25 and the second motor 34, ensuring precise contact between the inner wall of the heating sleeve 37 and the output shafts. Then, the outer surface of the heating sleeve 37 is fixed to the first motor fixing support plate 24 and the second motor fixing support plate 36 via the heat-insulating bracket. When the heating sleeve 37 is in operation, the heat-insulating bracket prevents the heat generated by the heating sleeve 37 from being transferred to the motor fixing support plate, ensuring that the heat only acts towards the connecting end and the sphere.

[0047] Please see Figure 7 A heat insulation cover 14 is installed around the outside of the constant temperature heating platform 12, and the heat insulation cover 14 is bolted to the constant temperature heating platform 12 for easy disassembly. During the assembly stage, the heat insulation cover 14 is installed around the outside of the constant temperature heating platform 12 by bolts, so that the heat insulation cover 14 completely covers the outer perimeter of the constant temperature heating platform 12. When the constant temperature heating platform 12 is working, the heat insulation cover 14 prevents the heat generated by the platform from being dissipated to the surrounding environment. When the constant temperature heating platform 12 needs maintenance or repair, the heat insulation cover 14 can be separated from the platform by removing the connecting bolts.

[0048] The constant temperature heating platform 12 and the heat-conducting blank 13 are located inside the heat insulation cover 14. Operating windows 15 are provided on the surface and top of the heat insulation cover 14, and a sealing cover 16 is rotatably connected to the inner wall of the operating window 15. Pulling grooves 17 are provided on the outer surface of the sealing cover 16. After the heat insulation cover 14 is installed, the constant temperature heating platform 12 and the heat-conducting blank 13 are located inside the heat insulation cover 14. When experimental operations are required, the sealing cover 16 is rotated around the inner wall of the operating window 15 by pulling the pulling grooves 17 on the outer surface of the sealing cover 16, opening the operating window 15 for relevant operations. After the operation is completed, the pulling grooves 17 are pulled in the opposite direction to close the sealing cover 16, keeping the heat insulation cover 14 in a closed state.

[0049] The bottom of the heat insulation cover 14 has a clearance groove that matches the first height adjuster 11, and it is fixed to the edge of the constant temperature heating platform 12 by a buckle. The inner wall of the heat insulation cover 14 is covered with a reflective heat insulation layer. When installing the heat insulation cover 14, the clearance groove at its bottom is precisely matched with the first height adjuster 11 to avoid interference between the heat insulation cover 14 and the first height adjuster 11. Then, the heat insulation cover 14 is firmly fixed to the edge of the constant temperature heating platform 12 by the buckle. When the constant temperature heating platform 12 is working, the reflective heat insulation layer on the inner wall reflects the lost heat back into the inner cavity of the heat insulation cover 14, while blocking the heat from being transferred to the outside.

[0050] This solution involves: first, completing the necessary preparatory operations for device assembly; then, coaxially mounting the annular embedded heating sleeve 37 with the output shafts of the first motor 25 and the second motor 34, ensuring precise contact between the inner wall of the heating sleeve 37 and the output shafts; next, installing and fixing the outer surface of the heating sleeve 37 to the first motor fixing support plate 24 and the second motor fixing support plate 36 via a heat insulation bracket; finally, installing the heat insulation cover 14 around the outside of the constant temperature heating platform 12 with bolts, ensuring that the constant temperature heating platform 12 and the heat-conducting blank 13 are located within the inner cavity of the heat insulation cover 14, and ensuring that the clearance groove at the bottom of the heat insulation cover 14 precisely matches the first height adjuster 11; and finally, securing the edges of the heat insulation cover 14 and the constant temperature heating platform 12 firmly with clips.

[0051] By pulling the pull groove 17 on the outer surface of the closed cover plate 16, the closed cover plate 16 is rotated around the inner wall of the operating window 15, thus opening the operating window 15.

[0052] Adjust the ball screw motor 32 in the third forming module 3 to drive the ball screw 33 to move horizontally, thereby driving the second motor fixing support plate 36, which is fixed to the ball screw 33 by bolts, to move synchronously.

[0053] Adjust the first height adjuster 11 in the first forming module 1 so that the heat-conducting blank 13 fixed on the constant temperature heating platform 12 comes into contact with the second sphere 35 in the third forming module 3;

[0054] Adjust the second height adjuster 21 in the second forming module 2 so that the first sphere 26 and the heat-conducting blank 13 are kept at a certain distance;

[0055] Adjust the bidirectional horizontal displacement platform 23 in the second forming module 2 so that the first sphere 26 and the second sphere 35 are on the same horizontal axis, and then make fine adjustments through the vertical displacement platform 22 so that the first sphere 26 contacts the heat-conducting blank 13.

[0056] Adjust the constant temperature heating platform 12 in the first forming module 1 to the target temperature, and at the same time start the heating jacket 37. Through the heat conduction of the heat-conducting blank 13, heat the first ball 26 and the second ball 35 to the temperature set by the constant temperature heating platform 12. The reflective heat insulation layer on the inner wall of the heat insulation cover 14 reflects the lost heat back to the inner cavity, reducing the transfer of heat to the outside.

[0057] Adjusting the first height adjuster 11 moves the constant temperature heating platform 12 and the heat-conducting blank 13, causing the heat-conducting blank 13 to separate from the first sphere 26 and the second sphere 35;

[0058] The first motor 25 in the second forming module 2 and the second motor 34 in the third forming module 3 are started simultaneously. The first motor 25 and the second motor 34 rotate in opposite directions, thereby driving the first ball 26 and the second ball 35 to rotate in opposite directions respectively, and the heating sleeve 37 continuously heats the connection end area.

[0059] Liquid is pipetted onto the surfaces of the first sphere 26 and the second sphere 35 in a rotating state using a pipette, thereby achieving a uniform liquid coating on the heated sphere surfaces.

[0060] Adjust the ball screw motor 32 in the third forming module 3 and the bidirectional horizontal displacement platform 23 in the second forming module 2 respectively to drive the first ball 26 and the second ball 35 to approach each other, so that the coating liquid between the two balls forms a liquid bridge.

[0061] Adjust the ball screw motor 32 and the bidirectional horizontal displacement platform 23 again to drive the first ball 26 and the second ball 35 away from each other, causing the liquid bridge formed to break.

[0062] The entire process of liquid migration, transient formation and fracture of liquid bridges caused by thermal phase transition was observed and recorded, thus completing one measurement and observation.

[0063] After the measurement and observation are completed, turn off the constant temperature heating platform 12, the first motor 25, the second motor 34 and the heating sleeve 37, pull the pulling groove 17 in the opposite direction and close the sealing cover 16.

[0064] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0065] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for measuring the formation of a liquid bridge between heated spheres, characterized in that, The utility model relates to a kind of first forming module, and second forming module (2) and third forming module (3) are arranged outside first forming module (1), and first forming module (1) includes first height regulator (11), constant-temperature heating platform (12) and heat-conducting embryo (13), the heat-conducting embryo (13) is fixed on constant-temperature heating platform (12), and constant-temperature heating platform (12) is fixed on first height regulator (11); Second forming module (2) includes second height regulator (21), vertical displacement platform (22), two-way horizontal displacement platform (23), first motor fixed support plate (24), first motor (25) and first sphere (26), and first motor (25) is fixed on first motor fixed support plate (24), and the mechanical connection between the connecting end of first sphere (26) and first motor (25) is connected; Third forming module (3) includes horizontal displacement support frame (31), ball screw motor (32), ball screw (33), second motor (34), second sphere (35) and second motor fixed support plate (36), and second motor (34) is fixed on second motor fixed support plate (36), the ball center of second sphere (35) and the ball center of first sphere (26) are on the same horizontal line, and the mechanical connection between the connecting end of second sphere (35) and second motor (34) is connected, the coaxial line of first sphere (26) and second sphere (35) keeps the same horizontal height and the rotating direction is opposite. The connecting end between first sphere (26) and first motor (25) and the connecting end between second sphere (35) and second motor (34) are additionally provided with heating sleeve (37).

2. A device for measuring the formation of a liquid bridge between a heated sphere according to claim 1, characterized in that: The heating sleeve (37) is annularly embedded, and the inner wall of the heating sleeve (37) is coaxially sleeved with the output shafts of the first motor (25) and the second motor (34), respectively, and the outer surface of the heating sleeve (37) is provided with a heat insulation support between the first motor fixed support plate (24) and the second motor fixed support plate (36).

3. A device for measuring the formation of a liquid bridge between a heated sphere according to claim 2, characterized in that: The constant-temperature heating platform (12) is provided with a heat insulation cover (14) around the outer periphery, and the heat insulation cover (14) and the constant-temperature heating platform (12) are connected in a bolted detachable manner.

4. A device for measuring the formation of a liquid bridge between a heated sphere according to claim 1, characterized in that: The constant-temperature heating platform (12) and the heat-conducting embryo (13) are located in the inner cavity of the heat insulation cover (14), the surface and the top of the heat insulation cover (14) are provided with operation windows (15), and the inner side walls of the operation windows (15) are rotatably connected with closure cover plates (16), and the outer surfaces of the closure cover plates (16) are provided with pulling grooves (17).

5. A device for measuring the formation of a liquid bridge between a heated sphere according to claim 4, characterized in that: The bottom of the heat insulation cover (14) is provided with a relief groove matched with the first height regulator (11), and the edge of the constant-temperature heating platform (12) is fixed by buckling, and the inner wall of the heat insulation cover (14) is paved with a light-reflecting heat insulation layer.

6. A device for measuring the formation of a liquid bridge between a heated sphere according to claim 5, characterized in that: ​

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