CN218107703U - Freezing-thawing circulating temperature control model box for icerock collapse starting centrifugal experiment - Google Patents

Freezing-thawing circulating temperature control model box for icerock collapse starting centrifugal experiment Download PDF

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Publication number
CN218107703U
CN218107703U CN202222147207.4U CN202222147207U CN218107703U CN 218107703 U CN218107703 U CN 218107703U CN 202222147207 U CN202222147207 U CN 202222147207U CN 218107703 U CN218107703 U CN 218107703U
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temperature control
box
wall surface
freeze
square box
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范宣梅
李业
李龙起
王文松
于宗洋
张欣欣
王前鹏
倪涛
夏明垚
刘本银
姚林林
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Chengdu Univeristy of Technology
Huaneng Yarlung Tsangpo River Hydropower Development Investment Co Ltd
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Chengdu Univeristy of Technology
Huaneng Yarlung Tsangpo River Hydropower Development Investment Co Ltd
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Abstract

The utility model relates to an ice rock collapses and starts centrifugal experiment equipment technical field, discloses a freeze thawing circulation temperature control model box for ice rock collapses and starts centrifugal experiment, including square box, case lid and temperature control unit, wherein, square box is used for built-in model slope body, the case lid is used for closing the open-top of square box, the temperature control unit inlays to be established in the inside of case lid; the side wall of the main viewing surface of the square box body is a transparent observation window, the left outer wall surface, the outer bottom surface and the right outer wall surface of the square box body and the boundary of the transparent observation window are attached with a thin-wall pipe which is in an inverted 'n' -shaped shape at the main viewing angle, one end of the thin-wall pipe is used for air inlet, the other end of the thin-wall pipe is used for air outlet, and a plurality of vent holes which are arranged at intervals are formed in the pipe body.

Description

Freezing-thawing circulating temperature control model box for icerock collapse starting centrifugal experiment
Technical Field
The utility model belongs to the technical field of the centrifugal experimental facilities is collapsed to the ice rock, specifically relates to a freeze thawing circulation control by temperature change mold box that is used for the ice rock to collapse centrifugal experiment.
Background
Glacier rock masses on Qinghai-Tibet plateau in China are widely distributed, so that engineering geological conditions are complex, and meanwhile, glacier rock masses distributed on high-altitude slopes are easy to break and disintegrate under the action of gravity, so that disasters are caused. Therefore, the starting mechanism of the glacier rock-soil body under the action of freeze-thaw cycle in the alpine environment is accurately disclosed, and the method is favorable for effectively taking disaster prevention and reduction measures, so that the systematic research on the glacier rock-soil body is very necessary.
The centrifugal model experiment is used as a technical means and has irreplaceable effect on the explanation of disaster mechanisms. Based on the experimental purpose, a set of temperature control equipment which can meet the requirements of the ice rock collapse starting centrifugal experiment and has the function of freeze thawing circulation is designed and manufactured, and the temperature control equipment has great scientific significance.
At present, most of existing centrifugal experiment devices for carrying out freeze-thaw cycle on rock and soil mass are directed at loose soil mass, and for the freeze-thaw cycle centrifugal experiment on rock mass, the bearing capacity of the bottom of a model box needs to be considered, so that the existing centrifugal experiment devices are not suitable for starting centrifugal experiment on ice rock collapse. Meanwhile, the existing centrifugal experiment device rarely considers the fogging problem of the transparent observation window in the low-temperature environment and the centrifugal process, so that the external industrial camera is not very beneficial to monitoring the in-box model, and the high-quality image for later-stage result analysis and processing is difficult to obtain. In addition, based on different experimental schemes, preset temperature intervals are also different, so the temperature control is carried out on the refrigerating/heating intervals in the model box to meet the purpose of experiment, and under the actual working condition, the temperatures of different parts of the slope body of the model box possibly differ, if the condition is realized in the centrifugal experiment process, the model can be more suitable for the prototype, and the more accurate experiment result can be obtained.
SUMMERY OF THE UTILITY MODEL
In order to solve the transparent observation window that present centrifugal experiment device appears under the low temperature environment and in the centrifugal process and haze problem, the utility model aims to provide a freeze-thaw cycle control by temperature change mold box that is used for the ice rock to collapse and starts centrifugal experiment.
The utility model provides a freeze-thaw cycle temperature control model box for an iceberg collapse starting centrifugation experiment, which comprises a square box body, a box cover and a temperature control unit, wherein the square box body is used for internally arranging a model slope body, the box cover is used for covering the top opening of the square box body, and the temperature control unit is embedded in the box cover;
refrigeration/heating pipelines are uniformly laid on the inner bottom surface and the inner wall surface of the square box body, and the temperature control unit is communicated with the refrigeration/heating pipelines when the box cover covers the square box body so as to refrigerate/heat the space in the box through the refrigeration/heating pipelines, wherein the inner wall surfaces comprise a left inner wall surface, a right inner wall surface and a rear inner wall surface;
the side wall of the main viewing surface of the square box body is a transparent observation window, and a thin-walled tube which is in an inverted 'n' -shape under the main viewing angle is attached to the boundaries of the left outer wall surface, the outer bottom surface, the right outer wall surface and the transparent observation window of the square box body, wherein one end of the thin-walled tube is used for air inlet, the other end of the thin-walled tube is used for air outlet, and a plurality of vent holes which are arranged at intervals are formed in the tube body.
Based on the above utility model, a temperature control model box scheme is provided which can avoid the fogging of the transparent observation window in the low temperature environment and the centrifugal process, namely, the temperature control model box scheme comprises a square box body, a box cover and a temperature control unit, wherein the square box body is used for the built-in model slope body, the box cover is used for covering the top opening of the square box body, and the temperature control unit is embedded in the box cover; the side wall of the main viewing surface of the square box body is a transparent observation window, a thin-walled tube which is in an inverted 'n' -shape at the main viewing angle is attached to the boundaries of the left outer wall surface, the outer bottom surface and the right outer wall surface of the square box body and the transparent observation window, one end of the thin-walled tube is used for air inlet, the other end of the thin-walled tube is used for air outlet, and a plurality of vent holes which are arranged at intervals are formed in the tube body, so that when air enters from one end and is discharged from the other end, the outer surface of the transparent observation window moves in a circulating airflow mode through the vent holes, and accordingly, fog-shaped particles cannot be retained on the outer surface of the transparent observation window, and the fog removal effect is achieved.
In one possible design, the box cover further comprises a lighting unit, wherein the lighting unit adopts an LED lamp with Bluetooth and/or WiFi wireless control functions and is arranged on the inner bottom surface of the box cover;
the box cover is provided with a first through hole, and a power supply cable of the lighting unit is electrically connected with a power supply system outside the box after penetrating through the first through hole.
In one possible design, the device further comprises a platinum resistance temperature sensor, wherein the platinum resistance temperature sensor is arranged on the inner wall surface of the left side, the inner wall surface of the right side or the inner wall surface of the rear side of the square box body;
and a second through hole is formed in the box cover, and a communication cable of the platinum resistance temperature sensor is in communication connection with a data collection system outside the box after penetrating through the second through hole.
In one possible design, a plurality of ribbed steel bars are laid on the inner wall surface at intervals, wherein the ribbed steel bars are cold-rolled steel bars with the diameter of 25-35 mm.
In one possible design, the bottom of the square box is a stainless steel shell filled with C60 insulation concrete.
In one possible design, a handle for assisting in moving the cover plate is welded on the top surface of the box cover and/or a plurality of detachable windows are formed.
In one possible design, the tank lid employs a stainless steel housing filled with high density polystyrene foam.
In one possible design, the temperature control unit comprises a pressure switch, an electromagnetic valve, a micro compressor, a radiator, a controller, a vacuum pump, a starter and a liquid storage device, wherein each pair of two communicated components of the temperature control unit are communicated through a thin-wall copper pipe.
In a possible design, the upper region of internal face has laid based on the first circulation pipeline of refrigeration/heating pipeline, the lower region of internal face with interior bottom surface has laid based on the second circulation pipeline of refrigeration/heating pipeline, wherein, first circulation pipeline is used for independently refrigerate/heat the upper portion space in the incasement under the control of temperature control unit, the second circulation pipeline is used for independently refrigerate/heat the lower part space in the incasement under the control of temperature control unit.
In one possible design, for the pipeline between the temperature control unit and the refrigerating/heating pipeline, heat-insulating rubber sponge is used for pipeline outsourcing, wherein the heat-insulating rubber sponge is made of rubber and polyvinyl fluoride materials.
The beneficial effect of above-mentioned scheme:
(1) The invention provides a temperature control model box scheme capable of avoiding fogging of a transparent observation window in a low-temperature environment and a centrifugal process, and the temperature control model box scheme comprises a square box body, a box cover and a temperature control unit, wherein the square box body is used for internally arranging a model slope body, the box cover is used for covering a top opening of the square box body, and the temperature control unit is embedded in the box cover; the side wall of the main viewing surface of the square box body is a transparent observation window, thin-walled tubes which are inverted in a shape like a Chinese character 'ji' at the main viewing angle are attached to the boundaries of the left outer wall surface, the outer bottom surface, the right outer wall surface and the transparent observation window of the square box body, one end of each thin-walled tube is used for air inlet, the other end of each thin-walled tube is used for air outlet, and a plurality of vent holes which are arranged at intervals are formed in the tube body, so that when air enters from one end and is discharged from the other end, circulating airflow movement is carried out on the outer surface of the transparent observation window through the vent holes, and then fog-shaped particles cannot be retained on the outer surface of the transparent observation window, and a demisting effect is achieved;
(2) By arranging the adjustable light source, the image acquisition condition can be improved, and later-stage experimental result analysis is facilitated;
(3) By the design and application of the ribbed steel bars and the heat-insulating concrete, the overall strength of the box body can be improved, and the special requirements of a high-gravity centrifugal environment are met;
(4) The heat loss can be reduced by selecting materials with different heat conductivities at different parts;
(5) The freezing and thawing circulation temperature control model box can realize the step temperature difference of different parts in the box, ensures the necessary conditions of the freezing and thawing circulation centrifugal experiment, has the characteristics of reasonable and safe structure, convenient use, easy operation and the like, and is convenient for practical application and popularization.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a cover plate and a temperature control unit of a freeze-thaw cycle temperature control model box.
Fig. 2 is a schematic view of the cross-sectional structure of the freezing-thawing cycle temperature control model box.
Fig. 3 is a schematic diagram of a rear view cross-sectional structure of a square box body in a freeze-thaw cycle temperature control model box.
Fig. 4 is a schematic diagram of a left-side sectional structure of a square box body in a freeze-thaw cycle temperature control model box.
Fig. 5 is a schematic diagram of a right-side sectional structure of a square box body in a freeze-thaw cycle temperature control model box.
Fig. 6 is a schematic view of the bottom cross-sectional structure of the square box body in the freeze-thaw cycle temperature control model box.
Fig. 7 is a schematic top-view cross-sectional structure diagram of a square box body in a freeze-thaw cycle temperature control model box.
Fig. 8 is a schematic structural diagram of the power supply cable wrapped by the galvanized metal movable screw in the freeze-thaw cycle temperature control model box.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Specific structural and functional details disclosed herein are merely illustrative of example embodiments of the invention. The present invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.
It will be understood that, although the terms first, second, etc. may be used herein to describe various objects, these objects should not be limited by these terms. These terms are only used to distinguish one object from another. For example, a first object may be referred to as a second object, and similarly, a second object may be referred to as a first object, without departing from the scope of example embodiments of the present invention.
It should be understood that, for the term "and/or" as may appear herein, it is merely an associative relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, B exists alone or A and B exist at the same time; for the term "/and" as may appear herein, which describes another associative object relationship, it means that two relationships may exist, e.g., a/and B, may mean: a exists singly or A and B exist simultaneously; in addition, for the character "/" that may appear herein, it generally means that the former and latter associated objects are in an "or" relationship.
Example one
As shown in fig. 1 to 8, the freeze-thaw cycle temperature control model box for an iceberg disintegration centrifugal experiment provided in this embodiment includes, but is not limited to, a square box body 1, a box cover 2, and a temperature control unit 3, wherein the square box body 1 is used for containing a model slope body 100, the box cover 2 is used for covering a top opening of the square box body 1, and the temperature control unit 3 is embedded inside the box cover 2; refrigeration/heating pipelines 11 are uniformly laid on the inner bottom surface and the inner wall surface of the square box body 1, and the temperature control unit 3 is communicated with the refrigeration/heating pipelines 11 when the box cover 2 covers the square box body 1 so as to refrigerate/heat the space in the box through the refrigeration/heating pipelines 11, wherein the inner wall surfaces comprise a left inner wall surface, a right inner wall surface and a rear inner wall surface; the main viewing side wall of the square box body 1 is a transparent observation window 12, and a thin-walled tube 13 which is in an inverted 'n' shape under a main viewing angle is attached to the boundaries of the left outer wall surface, the outer bottom surface, the right outer wall surface and the transparent observation window 12 of the square box body 1, wherein one end of the thin-walled tube 13 is used for air inlet, the other end of the thin-walled tube is used for air outlet, and a plurality of vent holes 130 which are arranged at intervals are formed in the tube body.
As shown in fig. 1 to 7, in the specific structure of the freeze-thaw cycle temperature control model box, the square box body 1 and the box cover 2 are used for providing a closed space for the model slope 100 (which can be directly cast in the box or placed in the box after being manufactured outside the box) during the closing process; the square box body 1 and the box cover 2 can be closed and sealed by a conventional method, for example, by means of a bolt structure and a sealing strip, wherein the sealing strip is preferably a heat-insulating magnetic sealing strip so as to ensure a heat-insulating sealing effect. The temperature control unit 3 may refer to a refrigeration principle of a refrigerator, and specifically utilizes a refrigerant (e.g., R410A refrigerant) circulating in the refrigeration/heating pipeline 11 to refrigerate/heat an indoor space, so as to achieve a purpose of freeze-thaw cycle, that is, specifically, the temperature control unit 3 includes, but is not limited to, a pressure switch 31, an electromagnetic valve 32, a micro compressor 33, a heat sink 34, a controller 35, a vacuum pump 36, an actuator 37, and a liquid reservoir 38, where the electromagnetic valve 32, the micro compressor 33, the heat sink 34, the vacuum pump 36, the actuator 37, and the liquid reservoir 38 are all conventional configurations of a temperature control system and are used for daily maintenance; the pressure switch 31 and the controller 35 are used for starting the cooling/heating function as required during the experiment; meanwhile, in order to enhance the heat conduction efficiency, each pair of two communicating components of the temperature control unit are preferably communicated through a thin-walled copper pipe (i.e., a thin-walled pipe made of a copper material), for example, the electromagnetic valve 32 and the micro compressor 33 which need to be communicated may be communicated through a thin-walled copper pipe. In addition, the temperature control unit 3 is carried by the case cover 2, and the components included therein are preferably uniformly arranged and welded and fixed inside the case cover 2.
The refrigerating/heating pipeline 11 is configured to refrigerate/heat an in-box space (at this time, the temperature of the refrigerant in the pipe needs to be lower than the temperature of the environment outside the pipe, and the temperature of the refrigerant in the pipe is controlled by the temperature control unit 3 through the micro compressor 33 and other components) according to a heat exchange principle between the refrigerant in the pipe and the environment outside the pipe; also, in order to improve the heat transfer efficiency, the cooling/heating pipe 11 is preferably made of a thin-walled copper pipe. The transparent observation window 12 is used for facilitating the camera outside the box to carry out overall process monitoring and observation on the model slope body 100 in the box in the experimental process; for the purpose of high strength, the transparent viewing window 12 is preferably made of organic glass made of polymethyl methacrylate material; further in order to take safety into consideration, the thickness of the organic glass can be thickened, namely the thickness of the organic glass is set to be about 30 millimeters. As shown in fig. 2, the thin-walled tube 13 is in an inverted "u" shape at the main viewing angle, and can semi-surround the transparent observation window 12; meanwhile, through the specific design of the thin-walled tube 13, when air enters from one end and is discharged from the other end (the two ends can be flush with the upper surface of the case cover 2), the outer surface of the transparent observation window 12 can have a circulating airflow movement by using the vent hole 130, so that mist particles cannot be retained on the outer surface of the transparent observation window 12, and a demisting effect is achieved. In order to maximally enhance the air circulation effect, the opening direction of the vent hole 130 is preferably parallel to the outer surface of the transparent observation window 12 or inclined toward the outer surface of the transparent observation window 12; meanwhile, the thin-wall pipe 13 may specifically adopt a thin-wall copper pipe, and the aperture of the vent 130 may specifically be designed to be 1 mm. In addition, the above-mentioned out-of-box camera includes, but is not limited to, a common camera and/or a high-speed camera on the market, wherein the common camera can be independently powered, and in order to refine the changing characteristics of the model slope body 100, a full-thread screw rod, an aviation aluminum alloy clamp and the like can be adopted to tightly fix the camera, so as to cooperate with the high-speed camera, thereby achieving the stereoscopic and multi-angle observation effect.
Preferably, the box cover further comprises a lighting unit 4, wherein the lighting unit 4 adopts an LED lamp with a Bluetooth and/or WiFi wireless control function and is arranged on the inner bottom surface of the box cover 2; the box cover 2 is provided with a first through hole 21, and a power supply cable 41 of the lighting unit is electrically connected with a power supply system outside the box after passing through the first through hole 21. As shown in fig. 2 to 3, the illumination unit 4 is used for providing illumination for experimental observation, so as to solve the problem of observation affected by insufficient brightness inside the box, and improve the shooting frame rate and the quality of the collected images of the camera outside the box. Because the lighting unit 4 is a Light-Emitting Diode (LED) lamp with bluetooth and/or WiFi wireless control function, for example, an existing LED Light source product produced by Philips (Philips corporation) is used, the brightness and/or color temperature of the Light source can be adjusted and controlled in a non-contact manner in a wireless control manner, so as to avoid artificial disturbance to the model in the box to the greatest extent. In addition, in order to ensure the heat insulation and sealing effect, preferably, the first through hole 21 is a threaded hole, and the power supply cable 41 is wrapped by a galvanized metal movable screw 210 in threaded fit with the threaded hole, as shown in fig. 8, so that when the galvanized metal movable screw 210 is inserted into the threaded hole in a fit manner, not only can the purpose of sealing the power supply cable 41 through the first through hole 21 be achieved, but also the power supply cable 41 can be locked and fixed.
Preferably, the device further comprises a platinum resistance temperature sensor 5, wherein the platinum resistance temperature sensor 5 is arranged on the inner wall surface of the left side, the inner wall surface of the right side or the inner wall surface of the rear side of the square box body 1; the box cover 2 is provided with a second through hole 22, and a communication cable 51 of the platinum resistance temperature sensor 5 is connected with a data collection system outside the box in a communication mode after penetrating through the second through hole 22. As shown in fig. 2 to 3, the platinum resistance temperature sensor 5 is used for acquiring the real-time temperature of the space in the box, so as to achieve the purpose of monitoring the temperature change in the box. The platinum resistance temperature sensor 5 can be tightly fixed on the inner wall surface by means of a full-thread screw rod, a flat pad, an elastic pad, an aviation aluminum alloy clamp and the like; the data collection system may specifically be a centrifuge data collection system used in an icerock-breaking centrifugation experiment. In addition, also in order to ensure the heat insulation and sealing effect, preferably, the second through hole 22 is also a threaded hole, and the communication cable 51 is also wrapped by another galvanized metal movable screw which is in threaded fit with the threaded hole, so that the purposes that the communication cable 51 passes through the second through hole 22 in a sealing manner and the communication cable 51 is locked and fixed can also be achieved.
Preferably, a plurality of ribbed steel bars 14 at intervals are further laid on the inner wall surface, wherein the ribbed steel bars 14 are cold-rolled steel with the diameter of 25-35 mmAnd (5) ribs. As shown in fig. 4 to 6, the ribbed steel bar 14 may be longitudinally arranged or transversely arranged, and by the design of the ribbed steel bar 14, the compressive strength of the whole box body can be increased, and the requirement of the supergravity experiment can be met. Further, for example, the ribbed bar 14 may be specified by
Figure BDA0003795705370000061
And (5) cold rolling the reinforcing steel bars.
Preferably, the bottom of the square box body 1 is made of a stainless steel shell filled with C60 heat preservation concrete 15. As shown in figures 2-5, through the design, the bottom compressive strength required by the centrifugal experiment can be met, the bearing capacity is improved, and the centrifugal experiment is further suitable for the ice rock collapse starting centrifugal experiment.
Preferably, a handle 23 for assisting in moving the cover plate is welded on the top surface of the box cover 2 and/or a plurality of detachable windows 24 are formed. As shown in fig. 1, the number of the handles 23 is two, so that the cover can be covered or uncovered conveniently; the number of the detachable windows 24 is four, so that the devices in the cover can be conveniently checked or replaced. In addition, the detachable window 24 can be detached by blind threaded holes, screws, iron sheets, and the like.
Preferably, the case cover 2 is a stainless steel case filled with high density polystyrene foam 25. As shown in fig. 1, the cover 2 may be made of heat-insulating steel to reduce heat conduction to the outside of the case.
Preferably, a first circulation pipeline 111 based on the cooling/heating pipeline 11 is laid on an upper region of the inner wall surface, and a second circulation pipeline 112 based on the cooling/heating pipeline 11 is laid on a lower region of the inner wall surface and the inner bottom surface, where the first circulation pipeline 111 is used to independently cool/heat an upper space in the box under the control of the temperature control unit 3, and the second circulation pipeline 112 is used to independently cool/heat a lower space in the box under the control of the temperature control unit 3. As shown in fig. 2 to 5, when only the first circulation pipeline 111 is used, only the upper portion of the model slope body 100 may be cooled/heated, and when only the second circulation pipeline 112 is used, only the lower portion of the model slope body 100 may be cooled/heated, so that the model slope body 100 may have temperature differences at different positions and an in-box temperature step effect may be generated, which may further conform to a prototype and facilitate obtaining more accurate experimental results. Further, when the first circulation line 111 and the second circulation line 112 are simultaneously activated, the temperature in the tank can be made substantially constant.
Preferably, for the pipeline between the temperature control unit 3 and the refrigerating/heating pipeline 11, a heat insulation rubber sponge is used for pipeline outsourcing, wherein the heat insulation rubber sponge is made of rubber and polyvinyl fluoride materials. As shown in fig. 1 and 5, the inner circulation duct connecting end 61, the outer circulation duct connecting end 62, the inner circulation duct outlet end 63, and the outer circulation duct outlet end 64 for communicating the temperature control unit 3 with the cooling/heating duct 11 may be wrapped by the heat-insulating rubber sponge, thereby further reducing heat conduction with the outside. In addition, the air charging port 65 and the air charging port connecting end 66 in fig. 1 and 5 may be wrapped by the heat insulating rubber sponge to reduce heat conduction with the outside.
To sum up, adopt the freeze-thaw cycle control by temperature change mold box that this embodiment provided and be used for the frozen rock to collapse and start centrifugal experiment, have following technological effect:
(1) The embodiment provides a temperature control model box scheme capable of avoiding fogging of a transparent observation window in a low-temperature environment and a centrifugal process, and the temperature control model box scheme comprises a square box body, a box cover and a temperature control unit, wherein the square box body is used for internally arranging a model slope body, the box cover is used for covering a top opening of the square box body, and the temperature control unit is embedded in the box cover; the side wall of the main viewing surface of the square box body is a transparent observation window, thin-walled tubes which are inverted in a shape like a Chinese character 'ji' at the main viewing angle are attached to the boundaries of the left outer wall surface, the outer bottom surface, the right outer wall surface and the transparent observation window of the square box body, one end of each thin-walled tube is used for air inlet, the other end of each thin-walled tube is used for air outlet, and a plurality of vent holes which are arranged at intervals are formed in the tube body, so that when air enters from one end and is discharged from the other end, circulating airflow movement is carried out on the outer surface of the transparent observation window through the vent holes, and then fog-shaped particles cannot be retained on the outer surface of the transparent observation window, and a demisting effect is achieved;
(2) By arranging the adjustable light source, the image acquisition condition can be improved, and later-stage experimental result analysis is facilitated;
(3) By the design and application of the ribbed steel bars and the heat-insulating concrete, the overall strength of the box body can be improved, and the special requirements of a high-gravity centrifugal environment are met;
(4) The heat loss can be reduced by selecting materials with different heat conductivities at different parts;
(5) The freezing and thawing circulation temperature control model box can realize the step temperature difference of different parts in the box, ensures the necessary conditions of the freezing and thawing circulation centrifugal experiment, has the characteristics of reasonable and safe structure, convenient use, easy operation and the like, and is convenient for practical application and popularization.
Finally, it should be noted that the present invention is not limited to the above alternative embodiments, and any person can obtain other various products in light of the present invention. The above detailed description should not be taken as limiting the scope of the invention, which is defined in the following claims, and which can be used to interpret the claims.

Claims (10)

1. A freeze-thaw cycle temperature control model box for an iceberg collapse starting centrifugal experiment is characterized by comprising a square box body (1), a box cover (2) and a temperature control unit (3), wherein the square box body (1) is used for internally arranging a model slope body (100), the box cover (2) is used for covering a top opening of the square box body (1), and the temperature control unit (3) is embedded in the box cover (2);
refrigeration/heating pipelines (11) are uniformly laid on the inner bottom surface and the inner wall surface of the square box body (1), the temperature control unit (3) is communicated with the refrigeration/heating pipelines (11) when the box cover (2) covers the square box body (1), so that the space in the box is refrigerated/heated through the refrigeration/heating pipelines (11), wherein the inner wall surface comprises a left inner wall surface, a right inner wall surface and a rear inner wall surface;
the main visual surface side wall of the square box body (1) is a transparent observation window (12), and a thin-walled tube (13) which is in an inverted 'n' shape under a main visual angle is attached to the boundaries of the left outer wall surface, the outer bottom surface and the right outer wall surface of the square box body (1) and the transparent observation window (12), wherein one end of the thin-walled tube (13) is used for air inlet, the other end of the thin-walled tube is used for air outlet, and a plurality of vent holes (130) which are arranged at intervals are formed in the tube body.
2. The freeze-thaw cycle temperature control model box according to claim 1, further comprising an illumination unit (4), wherein the illumination unit (4) adopts an LED lamp with Bluetooth and/or WiFi wireless control function and is arranged on the inner bottom surface of the box cover (2);
a first through hole (21) is formed in the box cover (2), and a power supply cable (41) of the lighting unit is electrically connected with a power supply system outside the box after penetrating through the first through hole (21).
3. The freeze-thaw cycle temperature control model box according to claim 1, further comprising a platinum resistance temperature sensor (5), wherein the platinum resistance temperature sensor (5) is disposed on the left inner wall surface, the right inner wall surface or the rear inner wall surface of the square box body (1);
and a second through hole (22) is formed in the box cover (2), and a communication cable (51) of the platinum resistor temperature sensor (5) is in communication connection with a data collection system outside the box after penetrating through the second through hole (22).
4. The freeze-thaw cycle temperature control model box according to claim 1, wherein the inner wall surface is further laid with a plurality of ribbed steel bars (14) at intervals, wherein the ribbed steel bars (14) are cold rolled steel bars with a diameter of 25-35 mm.
5. The freeze-thaw cycle temperature controlled model box according to claim 1, characterized in that the bottom of the square box (1) is stainless steel shell filled with C60 insulation concrete (15).
6. The freeze-thaw cycle temperature control model box according to claim 1, characterized in that a handle (23) for assisting in moving the cover plate is welded to the top surface of the box cover (2) and/or a plurality of detachable windows (24) are provided.
7. The freeze-thaw cycle temperature control model box according to claim 1, wherein the box cover (2) is a stainless steel shell filled with high density polystyrene foam (25).
8. The freeze-thaw cycle temperature control model box according to claim 1, wherein the temperature control unit (3) comprises a pressure switch (31), an electromagnetic valve (32), a micro compressor (33), a radiator (34), a controller (35), a vacuum pump (36), an actuator (37) and a reservoir (38), wherein each pair of two communicating components of the temperature control unit are communicated through a thin-walled copper tube.
9. The freeze-thaw cycle temperature control model box according to claim 1, wherein an upper region of the inner wall surface is laid with a first circulation line (111) based on the cooling/heating pipe (11), and a lower region of the inner wall surface and the inner bottom surface are laid with a second circulation line (112) based on the cooling/heating pipe (11), wherein the first circulation line (111) is used for independently cooling/heating an upper space in the box under the control of the temperature control unit (3), and the second circulation line (112) is used for independently cooling/heating a lower space in the box under the control of the temperature control unit (3).
10. The freeze-thaw cycle temperature control model box according to claim 1, wherein a pipe between the temperature control unit (3) and the cooling/heating pipe (11) is covered with an insulating rubber sponge, wherein the insulating rubber sponge is made of rubber and polyvinyl fluoride material.
CN202222147207.4U 2022-08-12 2022-08-12 Freezing-thawing circulating temperature control model box for icerock collapse starting centrifugal experiment Active CN218107703U (en)

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