Experiment module for simulating polar region ice and snow environment climate

Abstract

The invention relates to the technical field of climate simulation experiment equipment, and discloses a polar region ice and snow environment simulation climate experiment cabin, which comprises a cabin body and a bottom frame plate fixedly arranged at the bottom of the cabin body, and further comprises a mounting plate fixedly arranged at the lower part of the interior of the cabin body, and sealing doors are symmetrically hinged to the middle of one side of the front surface of the cabin body; the top of the mounting plate is fixedly connected with a top plate; the air supply assembly is arranged in the mounting plate, and a backflow assembly is arranged on one side of the back face of the cabin body; the backflow plate is fixedly mounted at the upper part in the cabin body; the air supply assembly comprises a fan main body fixedly installed in the middle of the bottom surface in the cabin body, transverse pipe bodies are symmetrically installed on the left side and the right side of the exterior of the fan main body, and longitudinal pipe bodies are symmetrically installed on the front side and the rear side of the exterior of the fan main body. And the problem of simulation result deviation caused by uneven temperature and humidity of the position can still occur.

Description

Technical Field

[0001] The invention relates to the technical field of climate simulation experimental equipment, and in particular to a climate experimental cabin simulating a polar ice and snow environment. Background Art

[0002] A polar environment simulation chamber is a laboratory that can simulate the harsh natural environment of the Arctic and Antarctic regions, especially reproducing the extreme cold, drought, and strong winds of the polar regions, providing a reliability testing base for instruments, equipment, and materials used in extreme environments, and providing a place for environmental adaptation training for personnel. The temperature control and humidity regulation of the simulation chamber are very important. A climate chamber of a climate environment simulation device in the prior art adopts a left-right air supply method, which will cause uneven distribution of temperature and humidity in the climate chamber. Once the temperature and humidity in the climate chamber are unevenly distributed, it will cause deviations in the subsequent simulation results of materials and personnel.

[0003] For example, a full-environment climate simulation experimental cabin with publication number CN118527184A includes a cabin body, which is a cylindrical structure; several groups of air treatment systems are fixedly installed on the inner wall of the cabin; the air treatment system adopts an airflow organization form of top air supply and bottom air return; a simulated building is also arranged in the center of the inner cavity of the cabin; simulated lighting devices and simulated air supply devices are arranged on the side walls of the simulated building; cross-arranged snowfall devices and rainfall devices are also fixedly installed on the top of the simulated building, the meteorological environment is simulated by the snowfall devices and rainfall devices, the temperature and humidity in the cabin are controlled by the air treatment system, and the local light and heat effect and wind pressure effect of the simulated building are realized by the simulated lighting devices and simulated air supply devices. However, the gas flow rate is poor in the corners around the simulation cabin, and uneven temperature and humidity may still occur at these locations, which will affect the subsequent experimental simulation and cause deviations in the simulation results. There are certain defects.

[0004] Therefore, a climate experiment chamber simulating polar ice and snow environment is proposed to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide a climate experiment chamber for simulating polar ice and snow environment, so as to solve the problem that the gas flow rate is poor in the corners of the simulation chamber, and the temperature and humidity may still be uneven at these locations, thereby affecting subsequent experimental simulations and causing deviations in simulation results.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a simulated polar ice and snow environment climate test chamber, comprising a chamber body and a bottom frame plate fixedly installed at the bottom of the chamber body, a sealed door symmetrically hinged in the middle of one side of the front of the chamber body, and an observation window fixedly installed inside the sealed door; Also includes: A mounting plate, fixedly mounted at the lower part of the cabin, with a top plate fixedly connected to the top of the mounting plate; An air supply assembly is arranged inside the mounting plate, and a return assembly is arranged on the back side of the cabin; A return plate is fixedly installed on the upper part of the cabin, and circular holes are evenly opened inside the return plate; The air supply assembly comprises a fan body fixedly mounted in the middle of the bottom surface of the cabin, horizontal tubes are symmetrically mounted on the left and right sides of the outside of the fan body, and vertical tubes are symmetrically mounted on the front and back sides of the outside of the fan body, a nozzle 1 is connected to the bottom of the horizontal tube, and a nozzle 2 is connected to the bottom of the vertical tube; A cylindrical groove is provided inside the mounting plate, a conical groove is provided inside the top plate, the number of the conical grooves is the same as the cylindrical groove, a connecting plate is fixedly installed in the middle of the cylindrical groove, a lower shaft is rotatably installed in the middle of the bottom of the connecting plate, an axial flow fan blade is fixedly connected to the bottom end of the lower shaft, and a filter part and a spiral strip are fixedly connected to the outside of the lower shaft in sequence; The inner bottom surface of the conical groove is fixedly connected with an annular track, the inner part of the annular track is rotatably connected with a top cover, the outer side of the top cover is provided with a side groove, the top of the connecting plate is rotatably mounted with a rotating member, the lower shaft is fixedly connected with the rotating member, the inner top surface of the top cover is rotatably connected with an upper shaft, and the upper shaft is fixedly connected with the rotating member by clamping; A horizontal plate is fixedly connected to the lower outer part of the upper shaft, a hole groove is opened inside the horizontal plate, a conical cylinder is fixedly connected to the top of the horizontal plate, and a blowing cylinder is fixedly connected to the upper outer part of the upper shaft, and the conical cylinder is connected to the blowing cylinder; The reflux assembly includes a connecting pipe and a temporary storage box, wherein the temporary storage box is fixedly installed in the middle of the back side of the cabin body, a heating device and a cooling device are also fixedly installed on the back side of the cabin body, and an upper pipe body is connected to the top of the temporary storage box.

[0007] Preferably, a sealing strip is provided at the connection between the sealing door and the cabin body, the number of the transverse tube bodies is no less than three, the first nozzle is connected through the transverse tube body, and the second nozzle is connected through the longitudinal tube body.

[0008] By adopting the above technical solution, the gas will be guided by the conical groove, discharged from the bottom of the cabin to the top, and enter the return plate for circulation, thereby reducing the dead corners of the air blowing inside the cabin.

[0009] Preferably, the positions of the conical grooves and the cylindrical grooves correspond one to one, the number of the cylindrical grooves is no less than twelve, and the connecting plate is fixedly connected to the inner wall of the cylindrical groove by bolts.

[0010] By adopting the above technical solution, multiple evenly arranged air supply components improve the temperature and humidity regulation effect.

[0011] Preferably, the filter part is located below the connecting plate, the top surface of the spiral strip is in contact with the bottom surface of the filter part, and the side grooves are arranged in an array, and the number of the side grooves is not less than four.

[0012] By adopting the above technical solution, the rotation of the axial flow fan blades will drive the lower shaft to rotate, and the lower shaft will drive the spiral bars to rotate. The spiral bars scrape the filter part, so that impurities on the filter part move to the surroundings, maintaining the connectivity and filtering effect of the middle part of the filter part.

[0013] Preferably, a mounting block is fixedly connected to the bottom end of the upper shaft, a mounting groove is provided on the top of the rotating member, and the mounting block is snap-fitted and connected to the mounting groove and fixed by glue.

[0014] By adopting the above technical solution, the lower shaft can drive the mounting block and the upper shaft to rotate through the rotating member, so that the blow tube rotates to exhaust gas, and the gas is guided by the conical groove and rises from the bottom of the cabin to the top and is discharged.

[0015] Preferably, the transverse plates are arranged in an array, the number of the transverse plates is no less than three, the number of the blowing cylinders is the same as the number of the transverse plates, and one end of the blowing cylinder away from the upper shaft is connected to the outside of the top cover.

[0016] By adopting the above technical solution, part of the gas will pass through the horizontal plate and enter the conical tube and the blowing tube. The lower shaft can drive the mounting block and the upper shaft to rotate through the rotating member, so that the blowing tube rotates to exhaust.

[0017] Preferably, one end of the connecting pipe is connected to the fan body, and the other end of the connecting pipe is connected to the bottom of the temporary storage box. Connecting pipes are symmetrically installed on both sides of the temporary storage box, and a strip groove is fixedly installed on the back of the inner wall of the cabin.

[0018] By adopting the above technical solution, the rising gas inside the cabin enters through the circular holes in the return plate, and the gas is then input into the temporary storage box through the strip grooves and the upper tube body.

[0019] Preferably, the upper tube body is connected to a strip groove, the strip groove is located above the return plate, and the two connecting pipes are respectively connected to the heating device and the cooling device.

[0020] By adopting the above technical solution, the heating operation is performed through the heating equipment, and the hot steam is input into the temporary storage box, which is convenient for increasing the temperature inside the cabin. The cooling equipment is used to cool and blow out cold air, which is convenient for lowering the temperature inside the cabin and improving the regulation effect.

[0021] Preferably, an activated carbon plate is fixedly connected to one side of the top of the reflux plate, and small holes are opened inside the activated carbon plate, and the small holes are opened evenly.

[0022] By adopting the above technical solution, the rising gas inside the cabin will be filtered and purified by the activated carbon plate, and the activated carbon plate is provided with small holes, thereby improving the exhaust efficiency.

[0023] Compared with the prior art, the present invention has the following beneficial effects: an air supply assembly is provided, and the gas is guided by the conical groove, discharged from the bottom of the cabin to the top, and enters the return plate for circulation. Multiple evenly arranged air supply assemblies reduce the dead corners of the air blowing inside the cabin, and improve the temperature and humidity adjustment effect; An air supply component is provided. When air is supplied to adjust the temperature and humidity inside the cabin, the fan body is started, and the fan body exhausts air through the horizontal pipe body and the longitudinal pipe body. The gas is discharged through multiple nozzles and the longitudinal pipe body respectively, so that the gas is first blown downward and then flows upward into the cylindrical groove. The rising gas drives the axial flow fan blades to rotate and passes through the filter screen part. The filter screen part filters the gas, and the axial flow fan blades drive the lower shaft to rotate. The lower shaft drives the spiral strips to rotate. The spiral strips scrape the filter screen part, so that impurities on the filter screen part move to the surroundings, maintaining the connectivity and filtering effect of the middle part of the filter screen part, and utilizing the rising flow of the gas to facilitate the filtering of the gas. Then the gas continues to rise, and a part of the gas is removed. Part of the gas is discharged directly into the conical groove through the side groove, and the other part of the gas passes through the horizontal plate and enters the conical tube and the blowing tube. The lower shaft can drive the mounting block and the upper shaft to rotate through the rotating part, so that the blowing tube rotates to exhaust. The gas is guided by the conical groove and discharged from the bottom of the cabin to the top, and enters the return plate for circulation. Multiple evenly arranged air supply components reduce the dead corners of the cabin, improve the temperature and humidity adjustment effect, and solve the problem that the gas flow rate is poor in the corners of the simulation cabin, and the temperature and humidity may still be uneven at this location, which will affect the subsequent experimental simulation and cause the deviation of the simulation results. A reflux component is provided, and the rising gas inside the cabin enters through the circular hole in the reflux plate, and is then filtered and purified by the activated carbon plate. The activated carbon plate is provided with small holes to improve the exhaust efficiency. The gas is then input into the temporary storage box through the strip groove and the upper pipe body, and is returned to the fan body through the connecting pipe to facilitate subsequent reuse. The heating operation is performed by the heating equipment, and the hot steam is input into the temporary storage box to facilitate raising the temperature inside the cabin. The cooling equipment is used to cool and blow out cold air, which facilitates lowering the temperature inside the cabin and improves the regulation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the cross-sectional structure of the cabin of the present invention; Figure 2 It is a schematic diagram of the three-dimensional overall structure of the present invention; Figure 3 For the present invention Figure 1 The enlarged structural diagram at A in the middle; Figure 4This is a schematic diagram of the installation structure of the temporary storage box of the present invention; Figure 5 This is a schematic diagram of the main structure of the fan of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the mounting plate and the top plate of the present invention; Figure 7 For the present invention Figure 6 The enlarged structural diagram at B in the middle; Figure 8 This is a schematic diagram of the installation structure of the filter part of the present invention; Fig. 9 For the present invention Figure 8 The enlarged structural diagram at C in the middle; Fig.10 It is a schematic diagram of the longitudinal cross-sectional structure of the cabin of the present invention; Fig.11 For the present invention Fig.10 Enlarged structural diagram at point D in the middle.

[0025] In the figure: 1, cabin; 2, bottom frame plate; 3, sealing door; 4, observation window; 5, mounting plate; 6, top plate; 7, air supply assembly; 71, fan body; 72, horizontal tube body; 73, nozzle 1; 74, vertical tube body; 75, nozzle 2; 76, cylindrical groove; 77, conical groove; 78, connecting plate; 79, lower shaft; 710, axial flow fan blade; 711, filter screen; 712, spiral strip; 713, circular track ; 714, top cover; 715, side groove; 716, rotating part; 717, mounting groove; 718, upper shaft; 719, mounting block; 720, cross plate; 721, conical cylinder; 722, blowing cylinder; 8, reflux assembly; 81, connecting pipe; 82, temporary storage box; 83, heating equipment; 84, connecting pipe; 85, cooling equipment; 86, upper tube body; 87, strip groove; 88, activated carbon plate; 9, reflux plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 11 The present invention provides a technical solution: a climate experiment cabin simulating a polar ice and snow environment, comprising a cabin body 1 and a base frame plate 2 fixedly installed at the bottom of the cabin body 1, a sealed door 3 is symmetrically hinged in the middle of one side of the front of the cabin body 1, a sealing strip is provided at the connection between the sealed door 3 and the cabin body 1, and an observation window 4 is fixedly installed inside the sealed door 3.

[0028] The mounting plate 5 is fixedly mounted at the lower part of the cabin body 1 , and a top plate 6 is fixedly connected to the top of the mounting plate 5 .

[0029] The air supply component 7 is arranged inside the mounting plate 5 , and a return flow component 8 is arranged on the back side of the cabin body 1 .

[0030] The return plate 9 is fixedly installed on the upper part of the interior of the cabin 1, and circular holes are evenly opened inside the return plate 9.

[0031] The air supply assembly 7 includes a fan body 71 fixedly installed in the middle of the bottom surface of the cabin body 1, and horizontal tube bodies 72 are symmetrically installed on the left and right sides of the outside of the fan body 71, and vertical tube bodies 74 are symmetrically installed on the front and back sides of the outside of the fan body 71. The bottom of the horizontal tube body 72 is connected to a nozzle 1 73, and the bottom of the vertical tube body 74 is connected to a nozzle 2 75.

[0032] There are no less than three transverse tube bodies 72 , the nozzle 1 73 is connected to the transverse tube body 72 , and the nozzle 2 75 is connected to the longitudinal tube body 74 .

[0033] A cylindrical groove 76 is provided inside the mounting plate 5, a conical groove 77 is provided inside the top plate 6, the number of the conical grooves 77 is the same as the cylindrical grooves 76, a connecting plate 78 is fixedly installed in the middle of the cylindrical groove 76, a lower shaft 79 is rotatably installed in the middle of the bottom of the connecting plate 78, an axial flow fan blade 710 is fixedly connected to the bottom end of the lower shaft 79, and a filter part 711 and a spiral strip 712 are fixedly connected to the outer side of the lower shaft 79 in sequence.

[0034] The positions of the conical grooves 77 and the cylindrical grooves 76 correspond one to one, and there are no less than twelve cylindrical grooves 76. The connecting plate 78 is fixedly connected to the inner wall of the cylindrical groove 76 by bolts.

[0035] The inner bottom surface of the conical groove 77 is fixedly connected with an annular track 713, the inside of the annular track 713 is rotatably connected with a top cover 714, a side groove 715 is provided on the outer side of the top cover 714, a rotating member 716 is rotatably installed on the top of the connecting plate 78, the lower shaft 79 is fixedly connected to the rotating member 716, the inner top surface of the top cover 714 is rotatably connected with an upper shaft 718, and the upper shaft 718 is fixedly connected with the rotating member 716 by snap-fitting.

[0036] The filter part 711 is located below the connecting plate 78, the top surface of the spiral strip 712 is in contact with the bottom surface of the filter part 711, the side grooves 715 are provided in an array, and there are no less than four side grooves 715. The bottom end of the upper shaft 718 is fixedly connected with a mounting block 719, and a mounting groove 717 is provided at the top of the rotating part 716. The mounting block 719 is engaged with the mounting groove 717 and fixed with glue.

[0037] A transverse plate 720 is fixedly connected to the lower outer portion of the upper shaft 718 , a hole groove is opened inside the transverse plate 720 , a conical tube 721 is fixedly connected to the top of the transverse plate 720 , and a blowing tube 722 is fixedly connected to the upper outer portion of the upper shaft 718 , and the conical tube 721 is communicated with the blowing tube 722 .

[0038] The transverse plates 720 are arranged in an array, with no less than three transverse plates 720 . The number of the air cylinders 722 is the same as that of the transverse plates 720 . One end of the air cylinders 722 away from the upper shaft 718 is connected to the outside of the top cover 714 .

[0039] Embodiment 1: Figure 1-Figure 9 As shown, when air is supplied to adjust the temperature and humidity inside the cabin 1, the fan body 71 is started, and the fan body 71 exhausts the gas through the horizontal tube body 72 and the vertical tube body 74. The gas is discharged through multiple nozzles 73 and the vertical tube body 74 respectively, so that the gas is first blown downward and then flows upward into the cylindrical groove 76. The rising gas drives the axial flow fan blades 710 to rotate and passes through the filter mesh part 711, and the filter mesh part 711 filters the gas.

[0040] The axial flow blades 710 drive the lower shaft 79 to rotate, and the lower shaft 79 drives the spiral bars 712 to rotate. The spiral bars 712 scrape the filter part 711, so that the impurities on the filter part 711 move to the surroundings, maintaining the connectivity and filtering effect of the middle part of the filter part 711, and utilizing the upward flow of the gas to facilitate gas filtering. Then the gas continues to rise, and part of the gas is directly discharged into the conical groove 77 through the side groove 715, and the other part of the gas passes through the horizontal plate 720 and enters the conical cylinder 721 and the blowing cylinder 722.

[0041] The lower shaft 79 can drive the mounting block 719 and the upper shaft 718 to rotate through the rotating member 716, so that the air cylinder 722 rotates to exhaust gas. The gas is guided by the conical groove 77, discharged from the bottom of the cabin 1 to the top, and enters the return plate 9 for circulation. Multiple evenly arranged air supply components 7 reduce the dead corners of the air blowing inside the cabin 1, improve the temperature and humidity regulation effect, and solve the problem of poor gas flow rate in the corners of the simulation cabin. The temperature and humidity in these locations may still be uneven, which will affect the subsequent experimental simulation and cause deviations in the simulation results.

[0042] The reflux assembly 8 includes a connecting pipe 81 and a temporary storage box 82 . The temporary storage box 82 is fixedly installed in the middle of the back of the cabin 1 . A heating device 83 and a cooling device 85 are also fixedly installed on the back of the cabin 1 . The top of the temporary storage box 82 is connected to an upper pipe body 86 .

[0043] One end of the connecting pipe 81 is connected to the fan body 71 , and the other end of the connecting pipe 81 is connected to the bottom of the temporary storage box 82 . Connecting pipes 84 are symmetrically installed on both sides of the temporary storage box 82 . A strip groove 87 is fixedly installed on the back of the inner wall of the cabin body 1 .

[0044] The upper tube body 86 is connected to the strip groove 87, and the strip groove 87 is located above the return plate 9. The two connecting pipes 84 are respectively connected to the heating device 83 and the cooling device 85.

[0045] An activated carbon plate 88 is fixedly connected to one side of the top of the reflux plate 9. Small holes are opened inside the activated carbon plate 88, and the small holes are opened evenly.

[0046] Embodiment 2: Figure 10-11 As shown, the rising gas inside the cabin 1 enters through the circular hole in the return plate 9, and is then filtered and purified by the activated carbon plate 88. The activated carbon plate 88 is provided with small holes to improve the exhaust efficiency. The gas is then input into the temporary storage box 82 through the strip groove 87 and the upper tube body 86, and flows back to the fan body 71 through the connecting pipe 81, so as to facilitate subsequent reuse. The heating operation is performed by the heating device 83, and the hot steam is input into the temporary storage box 82, so as to facilitate raising the temperature inside the cabin 1. The cooling device 85 cools and blows out cold air, so as to facilitate lowering the temperature inside the cabin 1 and improve the regulation effect.

[0047] Working principle: When using the device, first, Figure 1-Figure 11 As shown, the device to be tested is placed on the top of the top plate 6 to test the working conditions of the device under different environments. When the air is supplied to adjust the temperature and humidity inside the cabin 1, the fan body 71 is started, and the gas is discharged through multiple nozzles 73 and the longitudinal tube body 74, so that the gas is first blown downward and then flows upward into the cylindrical groove 76. The rising gas drives the axial flow blades 710 to rotate and pass through the filter screen part 711. The axial flow blades 710 drive the lower shaft 79 to rotate, and the lower shaft 79 drives the spiral strips 712 to scrape the filter screen part 711, so that the impurities on the filter screen part 711 move to the surroundings, maintaining the connectivity and filtering effect of the middle part of the filter screen part 711. Then the gas continues to rise, and a part of the gas is directly discharged into the conical groove 77 through the side groove 715, and the other part of the gas passes through the horizontal plate 720, enters the conical cylinder 721 and the blowing cylinder 722, and the lower shaft 7 The rotating member 716 can drive the mounting block 719 and the upper shaft 718 to rotate, so that the blow tube 722 rotates to exhaust. The gas is guided by the conical groove 77, discharged from the bottom of the cabin 1 to the top, and enters the return plate 9 for circulation. The multiple evenly arranged air supply components 7 reduce the dead angle of blowing inside the cabin 1. The rising gas inside the cabin 1 enters through the round hole in the return plate 9, and is then filtered and purified by the activated carbon plate 88. The gas is then input into the temporary storage box 82 through the strip groove 87 and the upper tube body 86, and is returned to the fan body 71 by the connecting pipe 81, which is convenient for subsequent reuse. The heating operation is performed by the heating device 83, and the hot steam is input into the temporary storage box 82, which is convenient for raising the temperature inside the cabin 1. The cooling device 85 cools and blows out cold air, which is convenient for lowering the temperature inside the cabin 1 and improving the regulation effect.

[0048] Among them, the heating device 83 can adopt GHJ-10 hot air blower, the cooling device 85 can adopt DKT-L7AR evaporative cooling air device, and the fan body 71 can adopt HB-429 blower.

[0049] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0050] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A climate experiment chamber for simulating a polar ice and snow environment, comprising a chamber body (1) and a base frame plate (2) fixedly mounted on the bottom of the chamber body (1), a sealed door (3) symmetrically hinged in the middle of one side of the front of the chamber body (1), and an observation window (4) fixedly mounted inside the sealed door (3); It is characterized in that Also includes: A mounting plate (5) fixedly mounted at the lower part of the interior of the cabin (1), wherein the top of the mounting plate (5) is fixedly connected to a top plate (6); An air supply component (7) is arranged inside the mounting plate (5), and a return flow component (8) is arranged on the back side of the cabin body (1); A return plate (9) is fixedly mounted above the interior of the cabin (1), and circular holes are evenly formed inside the return plate (9); The air supply assembly (7) comprises a fan body (71) fixedly mounted in the middle of the bottom surface of the cabin (1), horizontal tubes (72) are symmetrically mounted on the left and right sides of the outside of the fan body (71), and vertical tubes (74) are symmetrically mounted on the front and rear sides of the outside of the fan body (71), the bottom of the horizontal tube (72) is connected to a nozzle 1 (73), and the bottom of the vertical tube (74) is connected to a nozzle 2 (75); The mounting plate (5) has a cylindrical groove (76) formed inside, the top plate (6) has a conical groove (77) formed inside, the number of the conical grooves (77) being the same as the cylindrical grooves (76), a connecting plate (78) being fixedly mounted in the middle of the cylindrical groove (76), a lower shaft (79) being rotatably mounted in the middle of the bottom of the connecting plate (78), an axial flow fan blade (710) being fixedly connected to the bottom end of the lower shaft (79), and a filter screen portion (711) and a spiral strip (712) being fixedly connected to the outer side of the lower shaft (79) in sequence; The inner bottom surface of the conical groove (77) is fixedly connected to an annular track (713), the inner part of the annular track (713) is rotatably connected to a top cover (714), the outer side of the top cover (714) is provided with a side groove (715), the top of the connecting plate (78) is rotatably mounted with a rotating member (716), the lower shaft (79) is fixedly connected to the rotating member (716), the inner top surface of the top cover (714) is rotatably connected to an upper shaft (718), and the upper shaft (718) is fixedly connected to the rotating member (716) by snap-fitting; A transverse plate (720) is fixedly connected to the lower outer portion of the upper shaft (718), a hole groove is provided inside the transverse plate (720), a conical cylinder (721) is fixedly connected to the top of the transverse plate (720), and an air blowing cylinder (722) is fixedly connected to the upper outer portion of the upper shaft (718), and the conical cylinder (721) is in communication with the air blowing cylinder (722); The reflux assembly (8) comprises a connecting pipe (81) and a temporary storage box (82); the temporary storage box (82) is fixedly mounted in the middle of the back side of the cabin (1); a heating device (83) and a cooling device (85) are also fixedly mounted on the back side of the cabin (1); and the top of the temporary storage box (82) is connected to an upper pipe body (86).

2. The experimental chamber for simulating polar ice and snow environment climate according to claim 1, characterized in that: A sealing strip is provided at the connection between the sealing door (3) and the cabin body (1), the number of the transverse tube bodies (72) is not less than three, the first nozzle (73) is connected to the transverse tube body (72), and the second nozzle (75) is connected to the longitudinal tube body (74).

3. The experimental chamber for simulating polar ice and snow environment climate according to claim 2, characterized in that: The positions of the conical grooves (77) and the cylindrical grooves (76) correspond one to one, the number of the cylindrical grooves (76) is no less than twelve, and the connecting plate (78) is fixedly connected to the inner wall of the cylindrical groove (76) by means of bolts.

4. The experimental chamber for simulating polar ice and snow environment climate according to claim 1, characterized in that: The filter part (711) is located below the connecting plate (78), the top surface of the spiral strip (712) is in contact with the bottom surface of the filter part (711), and the side grooves (715) are arranged in an array, with no less than four side grooves (715).

5. The experimental chamber for simulating polar ice and snow environment climate according to claim 4, characterized in that: The bottom end of the upper shaft (718) is fixedly connected with a mounting block (719), the top of the rotating member (716) is provided with a mounting groove (717), and the mounting block (719) is snap-fitted and connected with the mounting groove (717) and fixed by glue.

6. The experimental chamber for simulating polar ice and snow environment climate according to claim 5, characterized in that: The transverse plates (720) are arranged in an array, with no less than three transverse plates (720), the number of the blowing cylinders (722) is the same as the number of the transverse plates (720), and one end of the blowing cylinders (722) away from the upper shaft (718) is connected to the outside of the top cover (714).

7. The experimental chamber for simulating polar ice and snow environment climate according to claim 1, characterized in that: One end of the connecting pipe (81) is connected to the fan body (71), and the other end of the connecting pipe (81) is connected to the bottom of the temporary storage box (82). Connecting pipes (84) are symmetrically installed on both sides of the temporary storage box (82), and a strip groove (87) is fixedly installed on the back of the inner side wall of the cabin body (1).

8. The experimental chamber for simulating polar ice and snow environment climate according to claim 7, characterized in that: The upper tube body (86) is connected to the strip groove (87), and the strip groove (87) is located above the return plate (9). The two connecting pipes (84) are respectively connected to the heating device (83) and the cooling device (85).

9. The experimental chamber for simulating polar ice and snow environment climate according to claim 8, characterized in that: An activated carbon plate (88) is fixedly connected to one side of the top of the reflux plate (9), and small holes are opened inside the activated carbon plate (88), and the small holes are opened evenly.

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