Boiling experiment device and method

Abstract

The invention discloses a boiling experiment device. The boiling experiment device comprises a motion simulation platform, an experiment box and a heating assembly. The experiment box is connected to the motion simulation platform, and a containing cavity is defined by the experiment box and used for containing cooling liquid; the heating assembly is contained in the containing cavity, the heating assembly comprises at least two heating parts, each heating part is provided with a heating face, the at least two heating parts are arranged side by side, the heating faces of the heating parts are located on the same plane of the heating assembly and face the bottom of the containing cavity, and the heating parts are configured to be capable of heating independently. The boiling experiment device provided by the embodiment of the invention can adjust the size of the heating area so as to research the influence of different heating areas on boiling characteristics.

Description

Technical Field

[0001] The invention relates to the technical field of thermal hydraulics, and in particular to a boiling experimental device and an experimental method. Background Art

[0002] Offshore nuclear reactors are equipped with a suppression water pool, which is used to control the pressure and temperature in the containment under severe accident conditions. When the pressure vessel fails, the high-temperature molten material in the nuclear reactor will leak into the pit, and then gradually spread over the metal bottom plate of the pit. The metal bottom plate of the pit and the cooling water layer in the suppression water pool at its bottom will cool and retain the high-temperature molten material. Under the continuous heating of the high-temperature molten material, the metal bottom plate of the pit and the cooling water layer may boil, which is a typical pool boiling phenomenon with the heating surface facing down. Since the metal bottom plate of the pit covers a large area of ​​the cooling water layer, the bubbles generated by the cooling water during the boiling process will be difficult to separate from the heating surface of the metal bottom plate of the pit, which will result in a lower critical heat flux value CHF (Critical Heat Flux). In order to ensure that the metal bottom plate of the reactor pit is not melted through and to prevent high-temperature molten material from directly contacting the cooling water layer in the suppression pool, which would threaten the integrity of the containment vessel, the ultimate safety barrier, it is necessary to design relevant experimental equipment to determine the pool boiling characteristics between the metal bottom plate of the reactor pit of the offshore nuclear reactor and the cooling water layer in the suppression pool, and to obtain the critical heat flux density value.

[0003] In existing experimental devices for studying pool boiling characteristics, the size of the heating surface facing the coolant and used to heat the coolant is fixed. The size of the heating area cannot be changed during the experiment to study the impact of heating surfaces of different sizes on the boiling characteristics. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a boiling experimental device and an experimental method, which can adjust the size of the heating area to study the influence of different heating areas on boiling characteristics.

[0005] In a first aspect, the present invention provides a boiling experiment device, the boiling experiment device comprising:

[0006] Motion simulation platform;

[0007] The experimental box is connected to the motion simulation platform, and defines a receiving cavity for receiving a coolant;

[0008] The heating assembly is accommodated in the accommodating cavity. The heating assembly includes at least two heating elements. The heating element has a heating surface. The at least two heating elements are arranged side by side, and the heating surface of each heating element is located in the same plane and faces the bottom of the accommodating cavity. Each heating element is configured to be able to heat individually.

[0009] The boiling experiment device according to the embodiment of the present invention has at least the following beneficial effects:

[0010] By arranging at least two heating elements side by side, and the heating surfaces of each heating element are located in the same plane and face the bottom of the accommodating cavity, each heating element can transfer heat to the coolant in the accommodating cavity through its own heating surface, and each heating element can be individually controlled to be heated. During the experiment, by controlling whether each heating element is heated or not, the number of heating surfaces currently in the heating state can be adjusted, thereby achieving the adjustment of the size of the heating area of ​​the heating component. In this way, the influence of different heating area sizes on boiling characteristics and critical heat flux density values ​​can be studied, which is helpful to establish a more accurate theoretical model and guide practical engineering design.

[0011] According to some embodiments of the present invention, the heating assembly further includes an isolation layer, which is disposed between two adjacent heating elements, and the isolation layer is used to block heat transfer between the two adjacent heating elements.

[0012] According to some embodiments of the present invention, the boiling experiment device also includes a heat insulation component, the heat insulation component includes a heat insulation cover, the heat insulation cover is arranged on the side of the heating component away from the bottom of the accommodating chamber, and the heat insulation cover is used to block the heat of the heating component from dissipating toward the side of the heating component away from the bottom of the accommodating chamber and toward the circumferential outer side of the heating component.

[0013] According to some embodiments of the present invention, the heat insulation assembly further includes a heat insulation filling layer, the heat insulation cover and the heating assembly jointly define a heat insulation cavity, and the heat insulation filling layer is filled in the heat insulation cavity;

[0014] And / or, the thermal insulation component further includes a thermal insulation layer, which is attached to a side of the heating element facing away from the heating surface.

[0015] According to some embodiments of the present invention, the boiling experiment device further includes an adjusting component, which is connected to the heating component and is used to adjust the height of the heating component.

[0016] According to some embodiments of the present invention, the adjustment assembly includes a drive source and a transmission mechanism, and the drive source is connected to the transmission mechanism;

[0017] The heating assembly also includes a connecting piece, which is connected to at least two heating elements, and the transmission mechanism is detachably connected to the connecting piece.

[0018] According to some embodiments of the present invention, the boiling experiment device further includes a temperature control component;

[0019] The temperature control component is arranged in the accommodating cavity, and the temperature control component is used to heat the coolant in the accommodating cavity to a preset initial temperature;

[0020] Alternatively, the boiling experiment device also includes a first water tank assembly, the first water tank assembly includes a first box body, the first box body is connected to the experimental box, the temperature control assembly is arranged inside the first box body, the first box body is used to transport cooling liquid to the accommodating cavity, and the temperature control assembly is used to heat the cooling liquid inside the first box body to a preset initial temperature.

[0021] According to some embodiments of the present invention, the boiling experimental apparatus further comprises a monitoring component;

[0022] The monitoring component comprises a first temperature measuring element, which is arranged on a side of the heating element away from the heating surface, and is used to measure the temperature of the side of the heating element away from the heating surface;

[0023] And / or, the monitoring assembly includes a second temperature measuring element, at least a portion of the bottom wall of the test box is a first transparent structure, the second temperature measuring element is arranged on a side of the first transparent structure away from the accommodating cavity, and the second temperature measuring element is used to measure the temperature of the heating surface through the first transparent structure;

[0024] And / or, the monitoring component includes a camera, at least a portion of the side wall of the experimental box is a second transparent structure, the camera is arranged on a side of the second transparent structure away from the accommodating cavity, and the camera is used to capture the boiling phenomenon of the coolant in the accommodating cavity through the second transparent structure.

[0025] According to some embodiments of the present invention, the boiling experiment device further includes a first water tank assembly, the first water tank assembly includes a first box body, a first pipeline and a first valve, the first box body is connected to the experiment box through the first pipeline, the first valve is arranged on the first pipeline, the first box body is used to inject the required cooling water level into the accommodating cavity, and the first valve is used to control the on / off of the first pipeline;

[0026] And / or, the boiling experiment device further comprises a second water tank assembly, the second water tank assembly comprises a second box body, a second pipeline, a second valve and an exhaust valve, the second box body is connected to the experiment box via the second pipeline, the second valve is arranged on the second pipeline, the exhaust valve is connected to the second box body, the second box body is used to allow water vapor from the accommodating chamber to enter, the second valve is used to control the on / off of the second pipeline, and the exhaust valve is used to control the on / off of the second box body and the outside world;

[0027] And / or, the boiling experimental device also includes a third water tank assembly, the third water tank assembly includes a third box body, a third pipeline and a third valve, the third box body is connected to the experimental box through the third pipeline, the third valve is arranged on the third pipeline, the third box body is used to store the coolant discharged from the accommodating chamber, and the third valve is used to control the on / off of the third pipeline.

[0028] According to some embodiments of the present invention, the boiling experiment device further comprises two sets of bracket assemblies, and the two sets of bracket assemblies are respectively arranged on opposite sides of the experiment box;

[0029] The bracket assembly includes a support plate and a support rod. The support plate is L-shaped and is arranged at the connection between the side wall and the bottom wall of the experimental box. The support plate is against the side wall and the bottom wall of the experimental box. The support rod has a first end and a second end relative to each other. The first end is connected to the support plate, and the second end is connected to the motion simulation platform.

[0030] In a second aspect, the present invention further provides a boiling experiment method, which is applied to the boiling experiment device as described above, and the boiling experiment method comprises:

[0031] Start the motion simulation platform;

[0032] Supplying power to one or more heating elements in the heating assembly to heat the coolant in the receiving chamber;

[0033] When a critical heat flux density value appears, power to the heating element is cut off and the motion simulation platform is shut down.

[0034] According to some embodiments of the present invention, the boiling experiment device further comprises an adjusting component, the adjusting component being used to adjust the height of the heating component;

[0035] Before or after the step of supplying power to one or more heating elements in the heating assembly, the boiling experiment method further comprises:

[0036] The distance between each heating surface of the heating component and the upper surface of the coolant is adjusted by the adjusting component.

[0037] According to some embodiments of the present invention, the boiling experiment device further includes a temperature control component, which is used to heat the coolant to a preset initial temperature;

[0038] Before the step of supplying power to one or more heating elements in the heating assembly, the boiling test method further comprises:

[0039] The preset initial temperature of the coolant is adjusted by the temperature control component.

[0040] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0042] Figure 1 A schematic diagram of the structure of a boiling experiment device according to an embodiment of the present invention;

[0043] Figure 2 It is a schematic structural diagram of the cooperation between the heating component and the heat insulation component of the boiling experiment device according to an embodiment of the present invention;

[0044] Figure 3It is a schematic diagram of the structure of the cooperation between the heating element and the isolation layer of the boiling experiment device according to an embodiment of the present invention;

[0045] Figure 4 It is a schematic structural diagram of the cooperation between the test box and the support assembly of the boiling test device according to an embodiment of the present invention;

[0046] Figure 5 It is a structural schematic diagram of a bracket assembly of a boiling experiment device according to an embodiment of the present invention;

[0047] Figure 6 The figure is a flow chart of the steps of the boiling test method according to an embodiment of the present invention.

[0048] Reference numerals:

[0049] Boiling experimental apparatus 100;

[0050] Sports simulation platform 11;

[0051] Experiment box 12; accommodating chamber 1201; bottom plate 121; side plate 122; cover plate 123;

[0052] Heating assembly 13; heating element 131; heating surface 1311; electrode interface 1312; isolation layer 132; positive electrode element 133; negative electrode element 134; connecting element 135;

[0053] Heat insulation assembly 14; heat insulation cover 141; top plate 1411; enclosure 1412; heat insulation filling layer 142; heat insulation pasting layer 143;

[0054] Adjustment component 15; drive source 151; transmission mechanism 152;

[0055] Temperature control component 16;

[0056] First water tank assembly 17; first tank body 171; first pipeline 172; first valve 173;

[0057] Monitoring component 18; first temperature measuring component 181; second temperature measuring component 182; camera 183;

[0058] Second water tank assembly 19; second tank body 191; second pipeline 192; second valve 193; exhaust valve 194;

[0059] The third water tank assembly 20; the third tank body 201; the third pipeline 202; the third valve 203;

[0060] Bracket assembly 21; support plate 211; support rod 212; first connecting hole 2111. DETAILED DESCRIPTION

[0061] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0062] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0063] In the description of the present invention, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0064] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0065] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0066] In the related technology, the size of the heating surface facing the coolant and used to heat the coolant is fixed, and the experiment can only study the influence of the heating surface of fixed size on the boiling characteristics. For example, the Chinese patent application number CN202111490234.5 provides a pool boiling experimental device and method with different heating surface structures under marine conditions. The experimental device can study the influence of the structure and inclination of the heating surface on pool boiling, but the size of the heating area cannot be changed during the experiment.

[0067] In view of this, an embodiment of the present invention provides a boiling experimental device 100 for studying the influence of different heating area sizes on boiling characteristics.

[0068] Please read Figures 1 to 3 The boiling experiment device 100 includes a motion simulation platform 11, an experiment box 12 and a heating component 13. The experiment box 12 is connected to the motion simulation platform 11, and the experiment box 12 defines a receiving chamber 1201, and the receiving chamber 1201 is used to receive a coolant. The heating component 13 is received in the receiving chamber 1201, and the heating component 13 includes at least two heating elements 131, and the heating element 131 has a heating surface 1311. At least two heating elements 131 are arranged side by side, and the heating surface 1311 of each heating element 131 is located in the same plane and faces the bottom of the receiving chamber 1201, and each heating element 131 is configured to be able to heat individually.

[0069] Specifically, the motion simulation platform 11 can be a six-degree-of-freedom driving platform, which can provide the required single or complex ocean conditions such as swaying, ups and downs, oscillation, and tilt for the experiment, so as to study the influence of ocean conditions on boiling characteristics and critical heat flux density values; during the experiment, coolant can be injected into the accommodating cavity 1201, and the coolant is located on the lower side of the heating surface 1311 of each heating element 131. The coolant is heated by controlling the heating element 131 to make the coolant boil on the lower side of the heating surface 1311, so as to realize the study of the boiling characteristics between the coolants under the heating surface 1311.

[0070] In an embodiment of the present invention, at least two heating elements 131 are arranged side by side, and the heating surface 1311 of each heating element 131 is located in the same plane and faces the bottom of the accommodating cavity 1201, so that each heating element 131 can transfer heat to the coolant in the accommodating cavity 1201 through its own heating surface 1311, and each heating element 131 can be individually controlled to be heated. During the experiment, by controlling whether each heating element 131 is heated or not, the number of heating surfaces 1311 currently in a heating state can be adjusted, thereby adjusting the size of the heating area of ​​the heating component 13, and it is possible to study the influence of different heating area sizes on boiling characteristics and critical heat flux density values, which is helpful to establish a more accurate theoretical model and guide actual engineering design.

[0071] like Figure 3 As shown, in some embodiments, the heating component 13 also includes an isolation layer 132, which is disposed between two adjacent heating elements 131. The isolation layer 132 is used to block the heat transfer between the two adjacent heating elements 131. In this way, when one of the two adjacent heating elements 131 is in a heating state and the other is in a non-heating state, heat exchange between the two adjacent heating elements 131 can be prevented, thereby avoiding the expansion of the heating area and affecting the experimental effect, thereby ensuring the experimental accuracy.

[0072] Specifically, the heating element 131 is in the shape of a rectangular plate, and each heating element 131 is arranged at intervals along its own width direction Y. The isolation layer 132 is in the shape of a long strip, and at least one isolation layer 132 is arranged between each two adjacent heating elements 131. The isolation layer 132 extends along the length direction X of the heating element 131, and the opposite sides of the isolation layer 132 are respectively attached to the long side surfaces of the two adjacent heating elements 131. The isolation layer 132 can prevent the two adjacent heating elements 131 from transferring heat to each other through their respective long side surfaces.

[0073] The heating element 131 may be a steel plate; the isolation layer 132 may be made of a material with good thermal insulation performance and capable of withstanding higher temperatures.

[0074] like Figure 2 As shown, in some embodiments, the heating assembly 13 further includes a positive electrode member 133 and a negative electrode member 134, and each heating element 131 is correspondingly provided with a pair of positive electrode members 133 and negative electrode members 134, and the pair of positive electrode members 133 and negative electrode members 134 are connected to a corresponding heating element 131, and extend outside the experimental box 12 to be connected to a power source, and the power source can supply power to the heating element 131 through the pair of positive electrode members 133 and negative electrode members 134, and the heating element 131 can generate heat to achieve heating when powered on. By directly powering the heating element 131 through a pair of positive electrode members 133 and negative electrode members 134, the uniformity of heating of the heating element 131 can be ensured, the heat loss during the experiment can be reduced, and the timeliness is good, and the heating area is easy to adjust.

[0075] like Figure 3 As shown, in some embodiments, the heating element 131 defines two electrode interfaces 1312, and the two electrode interfaces 1312 are spaced apart along the length direction X of the heating element 131, and a pair of positive electrode members 133 and negative electrode members 134 are respectively inserted into the two electrode interfaces 1312. By providing two electrode interfaces 1312, it is possible to quickly position the positive electrode member 133 and the negative electrode member 134, and to facilitate the installation and fixation of the positive electrode member 133 and the negative electrode member 134 on the heating element 131, and after the electrode is inserted into the electrode interface 1312, the electrode interface 1312 can play a certain limiting role on the electrode, so that the electrode can be stably installed on the heating element 131.

[0076] In a specific implementation process, the positive electrode member 133 and the negative electrode member 134 can be fixed to the two electrode interfaces 1312 respectively by welding.

[0077] In some other embodiments, the heating element 131 can also be heated by other methods. For example, the heating assembly 13 also includes a heating adapter, each heating element 131 is correspondingly provided with a heating adapter, the heating adapter is connected to a corresponding heating element 131, a pair of positive electrode members 133 and negative electrode members 134 are connected to the heating adapter, a power source supplies power to the corresponding heating adapter through a pair of positive electrode members 133 and negative electrode members 134, so that the heating adapter is energized and generates heat, and the heat generated by the heating adapter is transferred to the corresponding heating element 131 to achieve heating of the heating element 131.

[0078] like Figure 1 and Figure 2 As shown, in some embodiments, the boiling experiment device 100 also includes an insulation component 14, and the insulation component 14 includes an insulation cover 141. The insulation cover 141 is arranged on the side of the heating component 13 away from the bottom of the accommodating chamber 1201. The insulation cover 141 is used to block the heat of the heating component 13 from being dissipated toward the side of the heating component 13 away from the bottom of the accommodating chamber 1201 and toward the circumferential outer side of the heating component 13, so as to reduce the heat dissipated to the environment when the heating element 131 is heated, so that the heat generated by each heating element 131 is basically transmitted to the coolant in the accommodating chamber 1201 through the heating surface 1311. In this way, the experimental safety is improved, and the heat loss during the experiment is reduced, thereby ensuring the experimental accuracy.

[0079] Specifically, the heat shield 141 includes a top plate 1411 and a surrounding plate 1412. The top plate 1411 is located on the side of the heating assembly 13 away from the bottom of the accommodating cavity 1201, and the projection of the top plate 1411 along the thickness direction Z of the heating element 131 covers the projection of each heating element 131; the surrounding plate 1412 is connected to the outer side of the top plate 1411 and extends to the circumferential outer side of the heating assembly 13. The surrounding plate 1412 is arranged between the top plate 1411 and the heating assembly 13, and the circumferential outer side is formed by the side of each heating element 131 that exposes the outer periphery of the heating assembly 13, and the projection of the surrounding plate 1412 along the width direction X or the length direction Y of the heating element 131 covers the circumferential outer side. Through the above arrangement, the heat insulation cover 141 can be used to encapsulate each heating element 131, so that only the heating surface 1311 of each heating element 131 is exposed from the heat insulation cover 141. The heat insulation cover 141 can insulate the side of the heating component 13 away from the bottom of the accommodating cavity 1201 and the circumferential outer side of the heating component 13, so that the heat generated by each heating element 131 is basically transmitted to the coolant in the accommodating cavity 1201 through the heating surface 1311.

[0080] like Figure 2As shown, in some embodiments, the heat insulation component 14 further includes a heat insulation filling layer 142, the heat insulation cover 141 and the heating component 13 jointly define a heat insulation cavity, and the heat insulation filling layer 142 fills the heat insulation cavity; and / or, the heat insulation component 14 further includes a heat insulation layer 143, and the heat insulation layer 143 is attached to the side of the heating element 131 away from the heating surface 1311. By providing the heat insulation filling layer 142 and / or the heat insulation layer 143, the heat insulation effect on the side of the heating element 131 away from the heating surface 1311 can be further improved, the heat emitted to the environment by the heating element 131 when heating can be further reduced, and the experimental accuracy can be further ensured.

[0081] The heat-insulating filling layer 142 may be made of a material with good heat-insulating properties and capable of withstanding relatively high temperatures; and the heat-insulating pasting layer 143 may be a heat-insulating adhesive.

[0082] A pair of positive electrode member 133 and negative electrode member 134 are disposed through the heat-insulating filling layer 142 and the top plate 1411 to electrically connect the heating element 131 and the power source.

[0083] In some embodiments, the boiling experiment device 100 also includes a seal, which is arranged between the circumferential outer side of the heating component 13 and the inner side of the experimental box 12. The seal is used to seal the gap between the circumferential outer side of the heating component 13 and the inner side of the experimental box 12 to prevent water vapor from passing through the gap between the circumferential outer side of the heating component 13 and the inner side of the experimental box 12.

[0084] Specifically, the sealing member is disposed between the circumferential outer wall of the enclosure 1412 and the inner wall of the test box 12; the sealing member may be a metal gasket.

[0085] like Figure 1 As shown, in some embodiments, the boiling experimental device 100 also includes an adjusting component 15, which is connected to the heating component 13, and the adjusting component 15 is used to adjust the height of the heating component 13. In this way, the relative height between the heating component 13 and the coolant can be adjusted by adjusting the adjusting component 15 as needed, that is, the distance between each heating surface 1311 of the heating component 13 and the upper surface of the coolant is adjusted, so as to study the influence of different said distances on the boiling characteristics and the critical heat flux density value, which is helpful to establish a more accurate theoretical model and guide practical engineering design.

[0086] In some embodiments, the adjustment component 15 includes a driving source 151 and a transmission mechanism 152, wherein the driving source 151 is connected to the transmission mechanism 152; the heating component 13 also includes a connecting member 135, wherein the connecting member 135 is connected to at least two heating members 131, and the transmission mechanism 152 is detachably connected to the connecting member 135. By providing the driving source 151 and the transmission mechanism 152 connected between the driving source 151 and the heating component 13, it is convenient to adjust the height of the heating component 13, and the stepless adjustment of the height of the heating component 13 can be achieved, so that the heating component 13 can be smoothly adjusted to the required height. Moreover, by making the connecting member 135 detachably connected to the transmission mechanism 152, after completing the height adjustment of the heating component 13, the connection between the heating component 13 and the adjustment component 15 can be released by detaching the connecting member 135 and the transmission mechanism 152, so as to prevent the heating component 13 and the adjustment component 15 from moving relative to each other due to the movement loaded by the motion simulation platform 11 during the experiment, and avoid damage to the structure of the heating component 13 and / or the adjustment component 15.

[0087] After the height adjustment of the heating assembly 13 is completed, the connecting piece 135 can be locked on the experimental box 12 so that the heating assembly 13 is fixed at the same height.

[0088] In some embodiments, the driving source 151 includes a motor, and the transmission mechanism 152 includes a chain, one end of the chain is connected to the output end of the motor. The connecting piece 135 is arranged on the side wall of the experimental box 12, and the connecting piece 135 can move relative to the experimental box 12 along the height direction of the experimental box 12, and the other end of the chain is detachably connected to the connecting piece 135. When the motor is started, the output end of the motor can wind or unwind the chain to drive the connecting piece 135 to drive the heating component 13 to rise / lower relative to the experimental box 12.

[0089] In some embodiments, each heating element 131 is provided with a pair of connecting members 135 at both ends along its length direction X, and the opposite side walls of the experimental box 12 define a pair of slide grooves, which are arranged along the height direction of the experimental box 12. A pair of connecting members 135 on a heating element 131 corresponds to a pair of slide grooves on the opposite side edges of the experimental box 12, and each connecting member 135 is slidably connected to a corresponding slide groove. In this way, through the sliding cooperation between the connecting member 135 and the slide groove, the lifting and lowering of each heating element 131 can be guided to prevent the heating component 13 from tilting relative to the horizontal plane.

[0090] The height direction of the test box 12 is parallel to the thickness direction of the heating element 131 .

[0091] In some embodiments, there are two groups of adjustment components 15 , which are symmetrically arranged, and the chains of the two groups of adjustment components 15 are respectively connected to the connecting components 135 on both ends of a heating element 131 .

[0092] In a specific implementation process, each connecting member 135 can be fixed on the enclosure 1412 of the heat insulation cover 141 , and each connecting member 135 is indirectly connected to the corresponding heating element 131 through the heat insulation cover 141 .

[0093] In some embodiments, in order to prevent the coolant in the accommodating cavity 1201 from leaking outward through the chute, two elastic sealing strips are provided in each chute, and the two elastic sealing strips are respectively located on the two opposite inner walls in the chute, and the two elastic sealing strips always maintain a tendency to abut against each other to seal the chute. The connector 135 is arranged between the two elastic sealing strips, and when the connector 135 moves along the chute, the two elastic sealing strips can be deformed with the movement of the connector 135, and the two elastic sealing strips are stretched open by the connector 135 at the location of the connector 135, and the two elastic sealing strips abut against the outer wall of the connector 135 and seal the gap between the connector 135 and the inner wall of the chute, and the two elastic sealing strips abut against each other on the upper and lower sides of the connector 135, thereby achieving sealing of the chute.

[0094] In some other embodiments, the adjustment component 15 may also be other structures for driving the heating component 13 to rise and fall, and is not limited to the combination of the above-mentioned motor and chain. For example, the driving source 151 includes a handwheel, and the transmission mechanism 152 includes a rotating shaft and two chains. The rotating shaft is rotatably arranged on the upper side of the experimental box 12, and the two chains are respectively connected to the rotating shaft, and the two chains are detachably connected to the connecting pieces 135 on the two ends of a heating element 131. The handwheel is fixed on the rotating shaft. Turning the handwheel can drive the rotating shaft to wind or unwind the two chains, so as to drive the connecting piece 135 to drive the heating component 13 to rise / lower relative to the experimental box 12. For another example, the adjustment component 15 includes two telescopic motors, and the telescopic ends of the two telescopic motors are respectively connected to the ends of a heating element 131. The connecting pieces 135 on both ends are detachably connected, and the telescopic end of the telescopic motor can drive the heating component 13 to rise / fall relative to the experimental box 12 when it is telescoped; for another example, the adjustment component 15 includes a plurality of support platforms, and the plurality of support platforms are spaced apart along the height direction of the experimental box 12, and each support platform includes two bosses, and the two bosses are respectively located on the two opposite inner walls of the experimental box 12 and have the same height. The two ends of the heating component 13 are respectively mounted on the two bosses of one of the support platforms, and the height adjustment of the heating component 13 can be achieved by changing the support platform on which the heating component 13 is mounted.

[0095] Please continue reading Figure 1In some embodiments, the boiling experiment device 100 further includes a temperature control component 16. The temperature control component 16 is disposed in the accommodating cavity 1201, and the temperature control component 16 is used to heat the coolant in the accommodating cavity 1201 to a preset initial temperature; or, the boiling experiment device 100 further includes a first water tank component 17, the first water tank component 17 includes a first box body 171, the first box body 171 is connected to the experimental box 12, the temperature control component 16 is disposed inside the first box body 171, the first box body 171 is used to transport the coolant to the accommodating cavity 1201, and the temperature control component 16 is used to heat the coolant inside the first box body 171 to a preset initial temperature, wherein the preset initial temperature can be set according to actual needs. Through the above settings, the temperature control component 16 can be used to adjust the initial temperature of the coolant in the accommodating cavity 1201 or the coolant in the first box body 171 to be transported to the accommodating cavity 1201, so that the influence of different initial temperatures of the coolant on the boiling characteristics and the critical heat flux value can be studied, which is helpful to establish a more accurate theoretical model and guide actual engineering design.

[0096] like Figure 1 and Figure 2 As shown, in some embodiments, the boiling experiment device 100 further includes a monitoring component 18. The monitoring component 18 includes a first temperature measuring component 181, which is disposed on a side of the heating element 131 away from the heating surface 1311, and the first temperature measuring component 181 is used to measure the temperature of the side of the heating element 131 away from the heating surface 1311; and / or, the monitoring component 18 includes a second temperature measuring component 182, at least a portion of the bottom wall of the experimental box 12 is a first transparent structure, and the second temperature measuring component 182 is disposed on a side of the first transparent structure away from the accommodating cavity 1201, and the second temperature measuring component 182 is used to measure the temperature of the heating element 131 through the first transparent structure. The temperature of the surface 1311 is measured by the first transparent structure, wherein the first transparent structure realizes the visualization of the experimental box 12; and / or the monitoring component 18 includes a camera 183, and at least a part of the side wall of the experimental box 12 is a second transparent structure. The camera 183 is arranged on a side of the second transparent structure away from the accommodating cavity 1201, and the camera 183 is used to photograph the boiling phenomenon of the coolant in the accommodating cavity 1201 through the second transparent structure, wherein the second transparent structure realizes the visualization of the experimental box 12 and facilitates the experimenter to observe the internal situation of the experimental box 12.

[0097] Among them, the number of first temperature measuring components 181 corresponds to the number of heating components 131, and one first temperature measuring component 181 is correspondingly provided for one heating component 131. The first temperature measuring component 181 can be a thermocouple, and the thermocouple can be fixed on the side of the heating component 131 away from the heating surface 1311 by means of thermal conductive glue; the number of second temperature measuring components 182 corresponds to the number of heating components 131, and one second temperature measuring component 182 is correspondingly provided for one heating component 131. The second temperature measuring component 182 can be a colorimetric infrared thermometer, which can receive infrared radiation emitted by the heating surface 1311; the camera 183 can be a high-speed camera 183, which can capture the transient phenomenon when the coolant in the experimental box 12 boils.

[0098] like Figure 4 As shown, in some embodiments, the experimental box 12 is in the shape of a rectangular parallelepiped, and the experimental box 12 includes a bottom plate 121, a side plate 122 and a cover plate 123. The side plate 122 is in the shape of a rectangular ring, and the side plate 122 is connected between the bottom plate 121 and the cover plate 123. The bottom plate 121 covers the bottom opening of the side plate 122, and the cover plate 123 covers the top opening of the side plate 122. The bottom plate 121, the side plate 122 and the cover plate 123 jointly define the above-mentioned accommodating cavity 1201.

[0099] The bottom plate 121 may be made of tempered glass to form the above-mentioned first transparent structure, and a side wall of the side plate 122 may be made of quartz glass to form the above-mentioned second transparent structure.

[0100] like Figure 1 As shown, in some embodiments, the boiling experiment device 100 also includes a first water tank assembly 17, the first water tank assembly 17 includes a first box body 171, a first pipeline 172 and a first valve 173, the first box body 171 is connected to the experimental box 12 through the first pipeline 172, the first valve 173 is arranged on the first pipeline 172, the first box body 171 is used to inject the required cooling water level into the accommodating chamber 1201, and the first valve 173 is used to control the on / off of the first pipeline 172. A certain amount of coolant can be pre-stored inside the first box body 171. Before the experiment, the first valve 173 can be opened to connect the interior of the first box body 171 with the accommodating chamber 1201 to allow the coolant in the first box body 171 to be injected into the accommodating chamber 1201. When the water level in the accommodating chamber 1201 reaches the preset water level, the first valve 173 can be closed to disconnect the interior of the first box body 171 from the accommodating chamber 1201 to prevent the coolant in the first box body 171 from continuing to flow into the accommodating chamber 1201, or the water vapor in the accommodating chamber 1201 from flowing into the interior of the first box body 171 during the experiment.

[0101] In the specific implementation process, the horizontal height of the first box 171 can be made higher than the horizontal height of the experimental box 12, so that after the first valve 173 is opened, the coolant in the first box 171 can be injected into the accommodating cavity 1201 under the action of its own gravity. Of course, the coolant in the first box 171 can also be injected into the accommodating cavity 1201 in other ways, for example, a water pump is provided on the first pipeline 172, and the coolant in the first box 171 is injected into the accommodating cavity 1201 through the suction action of the water pump.

[0102] In some embodiments, the boiling experiment device 100 also includes a second water tank assembly 19, which includes a second box body 191, a second pipeline 192, a second valve 193 and an exhaust valve 194. The second box body 191 is connected to the experimental box 12 through the second pipeline 192, the second valve 193 is arranged on the second pipeline 192, and the exhaust valve 194 is connected to the second box body 191. The second box body 191 is used to allow water vapor to enter the accommodating cavity 1201, the second valve 193 is used to control the on / off of the second pipeline 192, and the exhaust valve 194 is used to control the on / off of the second box body 191 and the outside world. Before the experiment, the interior of the second box 191 can be connected to the accommodating chamber 1201 by opening the second valve 193, so that the water vapor generated in the accommodating chamber 1201 during the experiment can enter the interior of the second box 191 through the second pipe 192; after the experiment is completed, the interior of the second box 191 can be disconnected from the accommodating chamber 1201 by closing the second valve 193, so as to prevent the coolant formed after the water vapor in the second box 191 condenses and flows back to the accommodating chamber 1201; during the experiment, when the internal air pressure of the second box 191 reaches a preset value, the pressure can be released by opening the exhaust valve 194 to prevent overpressure in the interior of the second box 191.

[0103] In the specific implementation process, the horizontal height of the second box body 191 can be made higher than the horizontal height of the experimental box 12, so that after the second valve 193 is opened, the water vapor in the accommodating chamber 1201 can naturally flow up to the inside of the second box body 191 through the second pipeline 192.

[0104] In some embodiments, the boiling experiment device 100 further includes a third water tank assembly 20, which includes a third box 201, a third pipeline 202 and a third valve 203. The third box 201 is connected to the experiment box 12 through the third pipeline 202, and the third valve 203 is arranged on the third pipeline 202. The third box 201 is used to store the cooling liquid discharged from the accommodating chamber 1201, and the third valve 203 is used to control the on / off of the third pipeline 202. After the experiment is completed, the interior of the third box 201 can be connected to the accommodating chamber 1201 by opening the third valve 203, so as to allow the cooling liquid in the accommodating chamber 1201 to flow to the third box 201 and be recovered by the third box 201.

[0105] In the specific implementation process, the level of the third box 201 can be made lower than the level of the experimental box 12, so that after the third valve 203 is opened, the coolant in the accommodating chamber 1201 can be injected into the interior of the third box 201 under the action of its own gravity. Of course, the coolant in the accommodating chamber 1201 can also be injected into the interior of the third box 201 in other ways, for example, a water pump is provided on the third pipeline 202, and the coolant in the accommodating chamber 1201 is injected into the interior of the third box 201 through the suction action of the water pump.

[0106] See also Figure 4 and Figure 5 In some embodiments, the boiling experiment device 100 further includes two sets of support assemblies 21, which are respectively arranged on opposite sides of the experiment box 12. The support assembly 21 includes a support plate 211 and a support rod 212, the support plate 211 is L-shaped, and the support plate 211 is arranged at the connection between the side wall and the bottom wall of the experiment box 12, and the support plate 211 abuts against the side wall and the bottom wall of the experiment box 12, and the support rod 212 has a first end and a second end opposite to each other, the first end is connected to the support plate 211, and the second end is connected to the motion simulation platform 11. Through the above settings, the experimental box 12 can be supported and fixed so that the experimental box 12 stands on the motion simulation platform 11, and by making the support plate 211 L-shaped, the experimental box 12 can be conveniently installed between the support plates 211 of the two groups of bracket assemblies 21. The support plates 211 of the two groups of bracket assemblies 21 can firmly limit the experimental box 12, and there is no assembly interference between the support plates 211 and the experimental box 12 in the width direction Y, so that the bracket assembly 21 can adapt to the sizes of experimental boxes 12 of different widths, thereby improving the versatility of the bracket assembly 21.

[0107] In the specific implementation process, the support plate 211 and the experimental box 12 can be fixedly connected together by bolts, a first connection hole 2111 is defined on the support plate 211, and a second connection hole is defined on the side wall of the experimental box 12, the first connection hole 2111 and the second connection hole correspond to and are connected, and the bolts are threadedly connected to the first connection hole 2111 and the second connection hole to fix the support plate 211 and the experimental box 12. A sealing gasket can be provided between the support plate 211 and the side wall of the experimental box 12, and the bolts are passed through the sealing gasket to prevent the coolant in the accommodating cavity 1201 from leaking outward through the second connection hole.

[0108] In some embodiments, the boiling experiment device 100 also includes a power supply device, which is electrically connected to the heating component 13, the adjustment component 15, the temperature control component 16 and the monitoring component 18, and the power supply device is used to provide power to the heating component 13, the adjustment component 15, the temperature control component 16 and the monitoring component 18.

[0109] In some embodiments, the boiling experiment device 100 also includes an instrumentation and control device, which is electrically connected to the heating component 13, the adjustment component 15, the temperature control component 16 and the monitoring component 18. The instrumentation and control device is used to control the heating of the heating component 13, control the adjustment component 15 to drive the heating component 13 to rise / fall, control the temperature control component 16 to heat the coolant, and control the operation of the monitoring component 18.

[0110] In some embodiments, the boiling experiment device 100 also includes a data acquisition system, which is electrically connected to the monitoring component 18 and is used to collect and process the data measured by the monitoring component 18 (such as temperature data and image data obtained by shooting).

[0111] The following is an exemplary description of the method for using the boiling experiment device according to an embodiment of the present invention:

[0112] 1) Before the experiment, keep the upper surface of the motion simulation platform 10 in a horizontal state, and ensure that the first valve 173, the second valve 193 and the third gate valve 203 are all in a closed state; 2) According to the experimental needs, adjust the water temperature of the coolant in the first box 171 to a preset initial temperature through the temperature control component 16, then open the first valve 173, so that the coolant in the first box 171 is injected into the accommodating cavity 1201, and then close the first valve 173; 3) Adjust the height of the heating component 13 through the adjustment component 15, so that the heating surface 1311 of each heating element 131 is in direct contact with the liquid surface of the coolant, and then release the transmission mechanism 152 and the connecting member 13 5, and lock the connector 135; 4) Open the second valve 193 to connect the interior of the second box body 191 with the accommodating chamber 1201, then check whether the sealing of the experimental box 12 is good. If not, solve the sealing problem of the experimental box 12. If yes, proceed to the next step; 5) Open the first temperature measuring element 181 and the second temperature measuring element 182, start measuring the temperature of the heating surface 1311 of the heating element 131 and the side opposite to the heating surface 1312, adjust the height of the camera 183, so that it is accurately aligned with the area on the side where the heating surface 1311 of the heating element 131 is located, and turn on the camera 183 to shoot the coolant state in this area; 6) According to the experimental needs , set the motion form of the motion simulation platform 10 and start the motion simulation platform 10, and start the acquisition system; 7) According to the experimental needs, power one or more power supply heating elements 131 in the heating component 13 is supplied through the power supply device, and the current to the heating element 131 is slowly increased in stages to increase the heating power of the heating element 131 (for example, the current increase amplitude in each stage does not exceed 5%, and the current increase amplitude should be further reduced when approaching the critical heat flux density value state) to prevent the heating power from increasing too quickly and causing the heating element 131 to burn out; 8) At each stage of increasing the current, the heating surface of the heating element 131 is monitored in real time through the first temperature measuring element 181 and the second temperature measuring element 182 1311 and the temperature of the side opposite to the heating surface 1312, if the temperature does not rise instantly, wait for the temperature to stabilize for a period of time (for example, 10 to 15 minutes), and then enter the next current increase stage; 9) When the current is increased to a certain size, when it is found that the temperature of the heating surface 1311 of the heating element 131 and the side opposite to the heating surface 1312 rises in a short time and cannot stabilize, it is considered that the critical heat flux density value appears. At this time, the power supply to the heating element 131 is quickly stopped to prevent the heating element 131 from burning; 10) Stop the movement of the motion platform 10, restore its upper surface to a horizontal state, and open the cover 123 of the experimental box 12 for heat dissipation;11) The temperature of the heating surface 1311 and the side opposite to the heating surface 1312 of the heating element 131 is monitored by the first temperature measuring element 181 and the second temperature measuring element 182. When the temperature drops to room temperature, the second valve 193 is closed and the third valve 203 is opened to discharge the coolant in the accommodating cavity 1201 into the interior of the third box 201; 12) The power supply is turned off, and the experiment is over. ;

[0113] During the experiment, the size of the heating area of ​​the heating component 13 can be adjusted by controlling whether each heating element 131 is heated or not, so as to study the influence of different heating area sizes on the boiling characteristics and the critical heat flux density value; the distance between each heating surface 1311 of the heating component 13 and the upper surface of the coolant can be adjusted by adjusting the component 15 to study the influence of different distances on the boiling characteristics and the critical heat flux density value; the preset initial temperature of the coolant to be supplied to the accommodating cavity 1201 in the first box body 171 can also be adjusted by the temperature control component 16 to study the influence of different initial temperatures of the coolant on the boiling characteristics and the critical heat flux density value.

[0114] See also Figure 6 The embodiment of the present invention further provides a boiling experiment method, which is applied to the above-mentioned boiling experiment device 100, and the method includes:

[0115] S310, starting the motion simulation platform 11;

[0116] S320, supplying power to one or more heating elements 131 in the heating assembly 13 to heat the coolant in the accommodating cavity 1201;

[0117] S330 , when a critical heat flux density value appears, the power supply to the heating element 131 is cut off and the motion simulation platform 11 is turned off.

[0118] Specifically, during the experiment, when it is found that the temperature of the heating surface 1311 of the heating element 131 and the side opposite to the heating surface 1311 soars in a short period of time and cannot be stabilized, it is considered that the critical heat flux value appears. The first temperature measuring element 181 measures the temperature of the side of the heating element 131 away from the heating surface 1311, and the second temperature measuring element 182 measures the temperature of the heating surface 1311, so as to monitor whether the critical heat flux value appears. For example, when the first temperature measuring element 181 and the second temperature measuring element 182 monitor that the temperature of the heating surface 1311 of the heating element 131 and the side opposite to the heating surface 1311 rises at a rate of 10°C / S, and the rising rate is maintained for more than 10s, it can be considered that the critical heat flux value appears. Among them, the critical heat flux density value can be calculated by the temperatures measured by the first temperature measuring component 181 and the second temperature measuring component 182, and the thickness of the heating component 131. If the temperature measured by the first temperature measuring component 181 is T1, the temperature measured by the second temperature measuring component 182 is T2, the thickness of the heating component 131 is d, and the thermal conductivity is λ, then the heat flux density q can be calculated by the formula q=λ*(T1-T2) / d; the critical heat flux density value can also be calculated by the current and voltage provided to the heating component 131 in the heating state, and the sum of the areas of the heating surfaces 1311 of each heating component 131 in the heating state. If the current loaded on the heating component 131 is I and the voltage is U, and the sum of the areas of each heating component 131 in the heating state is S, then the heat flux density q can be calculated by the formula q=U*I / S.

[0119] In this embodiment, the motion simulation platform 11 can provide the required single or complex ocean conditions such as swaying, heaving, oscillation, and tilt for the experiment, so that the influence of ocean conditions on boiling characteristics and critical heat flux density values ​​can be studied; by controlling whether each heating element 131 is heated or not, the number of heating surfaces 1311 currently in a heating state can be adjusted, thereby adjusting the heating area size of the heating component 13, so that the influence of different heating area sizes on boiling characteristics and critical heat flux density values ​​can be studied.

[0120] The number of heating surfaces 1311 in the heating state can be different in each experiment by performing the experiment in multiple times.

[0121] In some embodiments, the boiling experiment device 100 further includes an adjustment component 15, and the adjustment component 15 is used to adjust the height of the heating component 13;

[0122] Before or after the step of supplying power to one or more heating elements 131 in the heating assembly 13, the boiling experiment method further includes:

[0123] The distance between each heating surface 1311 of the heating component 13 and the upper surface of the coolant is adjusted by the adjusting component 15 .

[0124] In this embodiment, by adjusting the distance between each heating surface 1311 of the heating assembly 13 and the upper surface of the coolant, it is possible to study the influence of different distances on the boiling characteristics and the critical heat flux density value.

[0125] The experiment can be performed in batches so that the distance between the heating surface 1311 and the upper surface of the cooling liquid can be different in each experiment.

[0126] In some embodiments, the boiling experiment device 100 further includes a temperature control component 16, and the temperature control component 16 is used to heat the coolant to a preset initial temperature;

[0127] Before the step of supplying power to one or more heating elements 131 in the heating assembly 13, the boiling experiment method further includes:

[0128] The preset initial temperature of the coolant is adjusted by the temperature control component 16 .

[0129] Specifically, in one embodiment, the temperature control component 16 is disposed in the accommodating cavity 1201, and the coolant in the accommodating cavity 1201 can be directly heated to a preset initial temperature by the temperature control component 16; in another embodiment, the temperature control component 16 is disposed inside the first box body 171, and the coolant in the first box body 171 can be heated to a preset initial temperature by the temperature control component 16, and then the coolant in the first box body 171 can be transported to the accommodating cavity 1201.

[0130] In this embodiment, by adjusting the preset initial temperature of the coolant, it is possible to study the influence of different initial temperatures of the coolant on the boiling characteristics and the critical heat flux value.

[0131] The preset initial temperature of the coolant in each experiment can be made different by performing experiments in multiple times.

[0132] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present invention. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. A boiling test device, characterized in that: include: Motion simulation platform; An experimental box connected to the motion simulation platform, wherein the experimental box defines a receiving cavity, and the receiving cavity is used to receive a coolant; A heating assembly is accommodated in the accommodating cavity, wherein the heating assembly includes at least two heating elements, each of which has a heating surface. At least two of the heating elements are arranged side by side, and the heating surface of each of the heating elements is located in the same plane and faces the bottom of the accommodating cavity. Each of the heating elements is configured to be capable of individual heating.

2. The boiling test device according to claim 1, characterized in that: The heating assembly further comprises an isolation layer, which is arranged between two adjacent heating elements and is used to block heat transfer between the two adjacent heating elements.

3. The boiling test device according to claim 1 or 2, characterized in that: The boiling experiment device also includes a heat insulation component, which includes a heat insulation cover. The heat insulation cover is arranged on the side of the heating component away from the bottom of the accommodating cavity, and the heat insulation cover is used to block the heat of the heating component from being dissipated toward the side of the heating component away from the bottom of the accommodating cavity and toward the circumferential outer side of the heating component.

4. The boiling test device according to claim 3, characterized in that: The heat insulation component further includes a heat insulation filling layer, the heat insulation cover and the heating component jointly define a heat insulation cavity, and the heat insulation filling layer is filled in the heat insulation cavity; And / or, the thermal insulation component further comprises a thermal insulation layer, and the thermal insulation layer is attached to a side of the heating element facing away from the heating surface.

5. The boiling test device according to claim 1, characterized in that: The boiling experiment device also includes an adjusting component, which is connected to the heating component and is used to adjust the height of the heating component.

6. The boiling test device according to claim 5, characterized in that: The adjustment assembly includes a driving source and a transmission mechanism, wherein the driving source is connected to the transmission mechanism; The heating assembly further comprises a connecting piece, wherein the connecting piece is connected to at least two of the heating elements, and the transmission mechanism is detachably connected to the connecting piece.

7. The boiling test device according to claim 1, characterized in that: The boiling experimental device also includes a temperature control component; The temperature control component is disposed in the accommodating cavity, and the temperature control component is used to heat the coolant in the accommodating cavity to a preset initial temperature; Alternatively, the boiling experiment device also includes a first water tank assembly, the first water tank assembly includes a first box body, the first box body is connected to the experimental box, the temperature control assembly is arranged inside the first box body, the first box body is used to transport cooling liquid to the accommodating cavity, and the temperature control assembly is used to heat the cooling liquid inside the first box body to a preset initial temperature.

8. The boiling test device according to claim 1, characterized in that: The boiling experimental device also includes a monitoring component; The monitoring assembly comprises a first temperature measuring element, which is arranged on a side of the heating element away from the heating surface, and is used to measure the temperature of the side of the heating element away from the heating surface; And / or, the monitoring assembly includes a second temperature measuring component, at least a portion of the bottom wall of the experimental box is a first transparent structure, the second temperature measuring component is arranged on a side of the first transparent structure away from the accommodating cavity, and the second temperature measuring component is used to measure the temperature of the heating surface through the first transparent structure; And / or, the monitoring component includes a camera, at least a portion of the side wall of the experimental box is a second transparent structure, the camera is arranged on a side of the second transparent structure away from the accommodating cavity, and the camera is used to capture the boiling phenomenon of the coolant in the accommodating cavity through the second transparent structure.

9. The boiling test device according to claim 1, characterized in that: The boiling experiment device further includes a first water tank assembly, the first water tank assembly including a first box body, a first pipeline and a first valve, the first box body is connected to the experiment box through the first pipeline, the first valve is arranged on the first pipeline, the first box body is used to inject a required cooling water level into the accommodating cavity, and the first valve is used to control the on / off of the first pipeline; And / or, the boiling experiment device further includes a second water tank assembly, the second water tank assembly includes a second box, a second pipeline, a second valve and an exhaust valve, the second box is connected to the experimental box through the second pipeline, the second valve is arranged on the second pipeline, the exhaust valve is connected to the second box, the second box is used to allow water vapor to enter the accommodating chamber, the second valve is used to control the on / off of the second pipeline, and the exhaust valve is used to control the on / off of the second box and the outside world; And / or, the boiling experiment device also includes a third water tank assembly, the third water tank assembly includes a third box body, a third pipeline and a third valve, the third box body is connected to the experimental box through the third pipeline, the third valve is arranged on the third pipeline, the third box body is used to store the coolant discharged from the accommodating cavity, and the third valve is used to control the on / off of the third pipeline.

10. The boiling test device according to claim 1, characterized in that: The boiling experiment device further comprises two sets of bracket assemblies, and the two sets of bracket assemblies are respectively arranged on opposite sides of the experiment box; The bracket assembly includes a support plate and a support rod, the support plate is L-shaped, and the support plate is arranged at the connection between the side wall and the bottom wall of the experimental box, and the support plate is against the side wall and the bottom wall of the experimental box. The support rod has a first end and a second end relative to each other, the first end is connected to the support plate, and the second end is connected to the motion simulation platform.

11. A boiling test method, applied to the boiling test device according to claim 1, characterized in that: The method comprises: Starting the motion simulation platform; Supplying power to one or more of the heating elements in the heating assembly to heat the coolant in the accommodating cavity; When a critical heat flux density value appears, power supply to the heating element is cut off and the motion simulation platform is turned off.

12. The boiling test method according to claim 11, characterized in that: The boiling experiment device also includes an adjustment component, which is used to adjust the height of the heating component; Before or after the step of supplying power to one or more of the heating elements in the heating assembly, the method further comprises: The distance between each heating surface of the heating component and the upper surface of the coolant is adjusted by the adjusting component.

13. The boiling test method according to claim 11, characterized in that: The boiling experiment device also includes a temperature control component, which is used to heat the coolant to a preset initial temperature; Before the step of supplying power to one or more of the heating elements in the heating assembly, the method further comprises: The preset initial temperature of the coolant is adjusted by the temperature control component.

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