Heat insulation type cryogenic liquid storage tank

Abstract

The invention relates to the technical field of heat insulation type cryogenic liquid storage tanks, and discloses a heat insulation type cryogenic liquid storage tank which comprises a heat insulation cover, a sliding block is fixedly connected to the bottom of the heat insulation cover, a connecting plate is fixedly connected to the top of the inner wall of the sliding block, and a two-way telescopic plate is fixedly connected to the end, away from the sliding block, of the connecting plate. By arranging the heat insulation mechanism, the refrigerating device can be started to work at the moment, cold air is conveyed to the cryogenic tank through the cold conveying pipe, when the temperature in the cryogenic tank meets the requirement, the electromagnetic valve can be started to close the cold conveying pipe, and after the cold conveying pipe is closed, the refrigerating device continues to work at the moment; and meanwhile, cold air is exhausted into the combined heat insulation cover through the exhaust pipe, so that heat insulation is conducted on the cryogenic tank through the cold air, the cryogenic tank is effectively protected while heat insulation is conducted on the cryogenic tank through the heat insulation cover, and meanwhile the cold air is prevented from being diffused outwards through the sealing effect of the rising ring and the sealing ring.

Description

Technical Field

[0001] This invention relates to the technical field of insulated cryogenic liquid storage tank equipment, specifically an insulated cryogenic liquid storage tank. Background Technology

[0002] Cryogenic liquid storage tanks are special containers used to store cryogenic liquids such as liquid oxygen, liquid nitrogen, liquid argon, and liquefied natural gas. They have a high-vacuum insulation structure, which can effectively reduce heat transfer to maintain a low temperature. They are mainly used to achieve ultra-low temperature environments and are widely used in material processing.

[0003] In the existing technology, cryogenic tanks are generally used to store cryogenic liquids such as liquid nitrogen and liquid argon. These liquids are mostly used in industry, so cryogenic tanks are generally installed outdoors. Since the temperature difference between the inside of the cryogenic tank and the outside is large, and the cryogenic tank operates outdoors all year round, the insulation effect of the cryogenic tank will decrease over time. Summary of the Invention

[0004] The purpose of this invention is to provide an insulated cryogenic liquid storage tank to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: The present invention is an insulated cryogenic liquid storage tank, comprising a base, a cryogenic tank disposed on the top of the base, an air inlet pipe fixedly connected to the top of the cryogenic tank, a refrigeration device fixedly connected to the surface of the base, a cooling pipe fixedly connected to the output end of the refrigeration device, a solenoid valve and an exhaust pipe fixedly connected to the surface of the cooling pipe, a support plate fixedly connected to the surface of the base, and further comprising; A positioning mechanism, comprising a positioning ring, a pull plate hinged to the bottom of the positioning ring, and a contact plate hinged to the end of the pull plate away from the positioning ring; A heat insulation mechanism, comprising a rising ring, a buffer telescopic rod fixedly connected to the surface of the rising ring, and a sealing ring fixedly connected to the end of the buffer telescopic rod away from the rising ring; A diffusion mechanism, comprising a toothed ring, a driven shaft fixedly connected to the top of the toothed ring, and a fan plate fixedly connected to the surface of the driven shaft.

[0006] Furthermore, the surface of the base is provided with a groove, the inner wall of the air inlet pipe is in communication with the inner wall of the cryogenic tank, and the end of the cooling pipe away from the refrigeration device is fixedly connected to the lower surface of the cryogenic tank.

[0007] Furthermore, the positioning mechanism includes a support plate, the surface of which is provided with a moving groove, a moving plate is slidably connected to the inner wall of the moving groove, a driven rod is fixedly connected to the surface of the moving plate, a positioning barrel is fixedly connected to the surface of the base, and a force-bearing telescopic rod is fixedly connected to the bottom of the inner wall of the positioning barrel.

[0008] Furthermore, the bottom of the support plate is fixedly connected to the top of the support plate, the bottom of the cryogenic tank is in contact with the surface of the contact plate, the end of the force-bearing telescopic rod away from the bottom of the inner wall of the positioning barrel is fixedly connected to the bottom of the contact plate, and an annular groove is formed on the surface of the support plate.

[0009] Furthermore, the heat insulation mechanism includes a heat insulation cover, a slider is fixedly connected to the bottom of the heat insulation cover, a connecting plate is fixedly connected to the top of the inner wall of the slider, a bidirectional telescopic plate is fixedly connected to the end of the connecting plate away from the slider, and an upward push plate is hinged to the end of the slider.

[0010] Furthermore, the bottom of the slider is slidably connected to the inner wall of the groove, both ends of the bidirectional telescopic plate are fixedly connected to the surface of the driven rod, the end of the upper push plate away from the slider is hinged to the outer wall of the rising ring, the inner wall of the rising ring is in contact with the outer wall of the cooling pipe and the positioning barrel, and the bottom of the sealing ring is fixedly connected to the top of the rising ring.

[0011] Furthermore, the diffusion mechanism includes a motor, the output end of which is fixedly connected to a rotating shaft, and the end of the rotating shaft away from the motor is fixedly connected to a gear disc.

[0012] Furthermore, the surface of the gear ring is slidably connected to the inner wall of the annular groove, the gear disc meshes with the gear ring, the bottom of the support disc is fixedly connected to the surface of the motor, the rotating shaft is close to one end of the gear disc and passes through the bottom of the support disc, and is fixedly connected to the bottom of the gear disc, and four driven shafts and four fan plates are provided, and the four driven shafts and fan plates are symmetrically arranged on the top of the gear ring.

[0013] The present invention has the following beneficial effects: This invention employs a positioning mechanism. When the cryogenic tank is placed on the surface of the contact plate, its own weight pushes the contact plate downwards. As the contact plate moves, it retracts the tension rod, pulling the end of the pull plate downwards. The other end of the pull plate pulls the positioning ring towards itself. As the positioning ring moves, it drives the driven rod towards itself, which in turn drives the moving plate to slide along the inner wall of the moving groove. During the movement of the positioning ring, it contacts the surface of the cryogenic tank, thus positioning and fixing the cryogenic tank. This effectively fixes and positions the cryogenic tank, saving workers the tedious steps of fixing the cryogenic tank with bolts and improving the efficiency of fixing the cryogenic tank.

[0014] This invention employs a heat insulation mechanism. When the driven rod moves, it causes the bidirectional telescopic plates to move closer together. As the driven rod moves, the distance gradually decreases, simultaneously pushing the bidirectional telescopic plates to retract. The movement of the bidirectional telescopic plates also causes the connecting plate to move closer together. When the connecting plate moves, it causes the two heat insulation covers to move closer together. When the heat insulation covers move, they cause the slider to slide closer together on the inner wall of the groove. As the slider slides, it pushes the end of the upper push plate closer together. Simultaneously, the other end of the upper push plate pushes the rising ring upwards on the surface of the positioning barrel. When the rising ring moves, it pushes the buffer telescopic rod upwards. When the buffer telescopic rod moves, it pushes the sealing ring upwards, causing the sealing ring to contact the bottom of the support plate. After the sealing ring contacts the bottom of the base... At this point, the sealing ring will be limited by the support plate. The slider will continue to push the upper push plate, which will then push the rising ring upward. As the rising ring continues to move upward, it will push the buffer telescopic rod upward to retract. At this time, the inner wall of the rising ring will contact the surface of the positioning barrel, and the top of the sealing ring will contact the bottom of the support plate, thus forming a seal on the bottom of the heat insulation cover. Simultaneously, the two heat insulation covers will merge together during movement. At this time, the inner wall of the heat insulation cover will contact the outer wall of the support plate, thus providing heat insulation for the cryogenic tank. The refrigeration unit can then be started to operate, and cold air will be supplied to the cryogenic tank through the cold air supply pipe. When the internal temperature of the cryogenic tank reaches the required level, the solenoid valve can be activated to close the cold air supply pipe. After the cold air supply pipe is closed, the refrigeration unit will continue to operate, and the cold air will be discharged into the interior of the merged heat insulation cover through the exhaust pipe, thus providing heat insulation for the cryogenic tank. The heat insulation cover effectively insulates the cryogenic tank while also protecting it. Furthermore, the sealing effect of the rising ring and the sealing ring prevents the cold air from diffusing outward.

[0015] This invention employs a diffusion mechanism. As cold air is discharged through the exhaust pipe, a motor is activated, driving a rotating shaft. This rotation of the shaft drives a geared disc, which in turn drives a geared ring to rotate within an annular groove. The rotation of the geared ring, in turn, drives a driven shaft, which in turn drives a fan plate. This fan plate rotation causes the cold air to rotate, thus evenly dispersing the cold air and providing overall insulation for the cryogenic tank. The fan plate's rotation effectively and evenly disperses the cold air discharged from the exhaust pipe onto the surface of the cryogenic tank, thus providing insulation.

[0016] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the overall structure of the positioning mechanism of the present invention; Figure 4 This is a schematic diagram of the stress-bearing telescopic rod structure of the present invention; Figure 5 This is a schematic diagram of the overall structure of the heat insulation mechanism of the present invention; Figure 6 This is a schematic diagram of the connecting plate structure of the present invention; Figure 7 This is a schematic diagram of the sealing ring structure of the present invention; Figure 8 This is a schematic diagram of the overall structure of the diffusion mechanism of the present invention; Figure 9 This is a schematic diagram of the motor structure of the present invention.

[0019] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Base; 2. Cryogenic tank; 201. Inlet pipe; 3. Refrigeration unit; 4. Cooling pipe; 5. Solenoid valve; 6. Exhaust pipe; 7. Support plate; 10. Positioning mechanism; 11. Support plate; 12. Moving plate; 13. Driven rod; 14. Positioning ring; 15. Pull plate; 16. Contact plate; 17. Positioning barrel; 18. Force-bearing telescopic rod; 30. Heat insulation mechanism; 31. Heat insulation cover; 32. Slider; 33. Connecting plate; 34. Bidirectional telescopic plate; 35. Push plate; 36. Rising ring; 37. Buffer telescopic rod; 38. Sealing ring; 50. Diffusion mechanism; 51. Motor; 52. Rotating shaft; 53. Gear plate; 54. Gear ring; 55. Driven shaft; 56. Fan plate. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1-9 As shown, the present invention is a thermally insulated cryogenic liquid storage tank, including a base 1, a cryogenic tank 2 disposed above the base 1, an air inlet pipe 201 fixedly connected to the top of the cryogenic tank 2, a refrigeration device 3 fixedly connected to the surface of the base 1, a cooling pipe 4 fixedly connected to the output end of the refrigeration device 3, a solenoid valve 5 and an exhaust pipe 6 fixedly connected to the surface of the cooling pipe 4, a support plate 7 fixedly connected to the surface of the base 1, and also includes; The positioning mechanism 10 includes a positioning ring 14, which contacts the surface of the cryogenic tank 2 during its movement, thereby positioning and fixing the cryogenic tank 2. A pull plate 15 is hinged to the bottom of the positioning ring 14. When the contact plate 16 moves downward, it pulls the end of the pull plate 15 downward, while the other end of the pull plate 15 pulls the positioning ring 14 to move closer to each other. The end of the pull plate 15 away from the positioning ring 14 is hinged to the contact plate 16. When the cryogenic tank 2 is placed on the surface of the contact plate 16, the contact plate 16 can be pushed downward by the weight of the cryogenic tank 2 itself. The heat insulation mechanism 30 includes a rising ring 36, and a buffer telescopic rod 37 is fixedly connected to the surface of the rising ring 36. When the rising ring 36 moves, it will push the buffer telescopic rod 37 to move upward. A sealing ring 38 is fixedly connected to the end of the buffer telescopic rod 37 away from the rising ring 36. When the buffer telescopic rod 37 moves, it will push the sealing ring 38 to move upward, so that the sealing ring 38 contacts the bottom of the support plate 11. After the sealing ring 38 contacts the bottom of the base 1. At this time, the sealing ring 38 will be limited by the support plate 11. Then the slider 32 will continue to push the upper push plate 35, so that the upper push plate 35 pushes the rising ring 36 to move upward. When the rising ring 36 continues to move upward, it will push the buffer telescopic rod 37 to retract upward. At this time, the inner wall of the rising ring 36 contacts the surface of the positioning barrel 17, and the top of the sealing ring 38 contacts the bottom of the support plate 11, thus forming a seal on the bottom of the heat insulation cover 31. At the same time, the two heat insulation covers 31 will merge together when moving. At this time, the inner wall of the heat insulation cover 31 will contact the outer wall of the support plate 11, thus providing heat insulation for the cryogenic tank 2. The diffusion mechanism 50 includes a toothed ring 54. When the toothed disc 53 rotates, it drives the toothed ring 54 to rotate on the inner wall of the annular groove. A driven shaft 55 is fixedly connected to the top of the toothed ring 54. When the toothed ring 54 rotates, it drives the driven shaft 55 to rotate. A fan plate 56 is fixedly connected to the surface of the driven shaft 55. When the driven shaft 55 rotates, it drives the fan plate 56 to rotate. During the rotation of the fan plate 56, it drives the cold air to rotate, so that the cold air can be evenly dispersed, thereby providing overall insulation for the cryogenic tank 2.

[0022] The surface of the base 1 is provided with a groove, the inner wall of the air inlet pipe 201 is connected to the inner wall of the cryogenic tank 2, and the end of the cooling pipe 4 away from the refrigeration device 3 is fixedly connected to the lower surface of the cryogenic tank 2.

[0023] The positioning mechanism 10 includes a support plate 11, on the surface of which a moving groove is formed. A moving plate 12 is slidably connected to the inner wall of the moving groove. When the driven rod 13 moves, it will drive the moving plate 12 to slide in a direction closer to each other on the inner wall of the moving groove. The driven rod 13 is fixedly connected to the surface of the moving plate 12. When the positioning ring 14 moves, it will drive the driven rod 13 to move in a direction closer to each other. A positioning barrel 17 is fixedly connected to the surface of the base 1. A force-bearing telescopic rod 18 is fixedly connected to the bottom of the inner wall of the positioning barrel 17.

[0024] The bottom of the support plate 11 is fixedly connected to the top of the support plate 7. The bottom of the cryogenic tank 2 is in contact with the surface of the contact plate 16. One end of the force-bearing telescopic rod 18 away from the bottom of the inner wall of the positioning barrel 17 is fixedly connected to the bottom of the contact plate 16. When the contact plate 16 moves, it will push the force-bearing telescopic rod 18 to retract downward. The surface of the support plate 11 is provided with an annular groove, which effectively fixes and positions the cryogenic tank 2 through the positioning ring 14, thereby saving workers from the tedious steps of fixing the cryogenic tank 2 with bolts and improving the efficiency of fixing the cryogenic tank 2.

[0025] The heat insulation mechanism 30 includes heat insulation covers 31. When the connecting plate 33 moves, it drives the two heat insulation covers 31 to move closer to each other. A slider 32 is fixedly connected to the bottom of the heat insulation cover 31, and a connecting plate 33 is fixedly connected to the top of the inner wall of the slider 32. When the bidirectional telescopic plate 34 moves, it drives the connecting plate 33 to move closer to each other. The end of the connecting plate 33 away from the slider 32 is fixedly connected to the bidirectional telescopic plate 34. When the driven rod 13 moves, it drives the bidirectional telescopic plate 34 to move closer to each other. During the movement of the driven rod 13, the distance gradually decreases, and at the same time, it pushes the bidirectional telescopic plate 34 to retract in the direction of closer to each other. The end of 32 is hinged with an upper push plate 35. At this time, the refrigeration device 3 can be started to operate and cold air is delivered to the cryogenic tank 2 through the cold supply pipe 4. When the internal temperature of the cryogenic tank 2 reaches the required level, the solenoid valve 5 can be activated to close the cold supply pipe 4. After the cold supply pipe 4 is closed, the refrigeration device 3 will continue to operate. At the same time, the cold air will be discharged into the interior of the combined heat insulation cover 31 through the exhaust pipe 6, thereby insulating the cryogenic tank 2 with cold air. The heat insulation cover 31 effectively insulates the cryogenic tank 2 and also protects the cryogenic tank 2. At the same time, the rising ring 36 and the sealing ring 38 seal the tank, thereby preventing the cold air from diffusing outward.

[0026] The bottom of slider 32 is slidably connected to the inner wall of the groove. When the heat insulation cover 31 moves, it will drive slider 32 to slide in the direction of mutual approach on the inner wall of the groove. Both ends of bidirectional telescopic plate 34 are fixedly connected to the surface of driven rod 13. The end of upper push plate 35 away from slider 32 is hinged to the outer wall of rising ring 36. When slider 32 slides, it will push the end of upper push plate 35 to move in the direction of mutual approach. At the same time, the other end of upper push plate 35 will push rising ring 36 to move upward on the surface of positioning barrel 17. The inner wall of rising ring 36 is in contact with the outer wall of cold pipe 4 and positioning barrel 17. The bottom of sealing ring 38 is fixedly connected to the top of rising ring 36.

[0027] The diffusion mechanism 50 includes a motor 51. When cold air is discharged through the exhaust pipe 6, the motor 51 is started to drive the rotating shaft 52 to rotate. The output end of the motor 51 is fixedly connected to the rotating shaft 52, and the end of the rotating shaft 52 away from the motor 51 is fixedly connected to the gear disk 53. When the rotating shaft 52 rotates, it will drive the gear disk 53 to rotate. During the rotation of the fan plate 56, the cold air discharged from the exhaust pipe 6 will be evenly dispersed, so that the cold air is evenly dispersed on the surface of the cryogenic tank 2, which plays a role in heat insulation of the cryogenic tank 2.

[0028] The surface of the gear ring 54 is slidably connected to the inner wall of the annular groove. The gear disk 53 meshes with the gear ring 54. The bottom of the support disk 11 is fixedly connected to the surface of the motor 51. The rotating shaft 52 is close to one end of the gear disk 53 and passes through the bottom of the support disk 11 and is fixedly connected to the bottom of the gear disk 53. There are four driven shafts 55 and four fan plates 56. The four driven shafts 55 and four fan plates 56 are symmetrically arranged on the top of the gear ring 54.

[0029] In use, when the cryogenic tank 2 is placed on the surface of the contact plate 16, the weight of the cryogenic tank 2 pushes the contact plate 16 downward. As the contact plate 16 moves, it pushes the force-bearing telescopic rod 18 downward. Simultaneously, the contact plate 16 pulls the end of the pull plate 15 downward, while the other end of the pull plate 15 pulls the positioning ring 14 towards a closer direction. When the positioning ring 14 moves, it drives the driven rod 13 towards a closer direction. The driven rod 13 then drives the moving plate 12 to slide towards a closer direction on the inner wall of the moving groove. During the movement of the positioning ring 14, it contacts the surface of the cryogenic tank 2, thus positioning and fixing the cryogenic tank 2. Simultaneously, the movement of the driven rod 13 drives the bidirectional telescopic plate 34 towards a closer direction. The distance between them will gradually decrease, and at the same time, it will push the bidirectional telescopic plate 34 to retract towards each other. When the bidirectional telescopic plate 34 moves, it will drive the connecting plate 33 to move towards each other. When the connecting plate 33 moves, it will drive the two heat insulation covers 31 to move towards each other. When the heat insulation cover 31 moves, it will drive the slider 32 to slide towards each other on the inner wall of the groove. When the slider 32 slides, it will push the end of the upper push plate 35 to move towards each other. At the same time, the other end of the upper push plate 35 will push the rising ring 36 to move upward on the surface of the positioning barrel 17. When the rising ring 36 moves, it will push the buffer telescopic rod 37 to move upward. When the buffer telescopic rod 37 moves, it will push the sealing ring 38 to move upward, so that the sealing ring 38 contacts the bottom of the support plate 11. After the sealing ring 38 contacts the bottom of the base 1.At this point, the sealing ring 38 will be limited by the support plate 11. The slider 32 will then continue to push the upper push plate 35, causing the upper push plate 35 to push the rising ring 36 upwards. As the rising ring 36 continues to move upwards, it will push the buffer telescopic rod 37 upwards to retract. At this time, the inner wall of the rising ring 36 contacts the surface of the positioning barrel 17, and the top of the sealing ring 38 contacts the bottom of the support plate 11, thus forming a seal on the bottom of the heat insulation cover 31. Simultaneously, the two heat insulation covers 31 will merge together during movement, and the inner wall of the heat insulation cover 31 will contact the outer wall of the support plate 11, thus providing heat insulation for the cryogenic tank 2. At this point, the refrigeration device 3 can be started to operate, and cold air will be supplied to the cryogenic tank 2 through the cold pipe 4. When the temperature inside the cryogenic tank 2 reaches... When the required temperature is reached, the solenoid valve 5 can be activated to close the cooling pipe 4. After the cooling pipe 4 is closed, the refrigeration unit 3 will continue to operate. At the same time, the cold air will be discharged into the interior of the combined heat insulation cover 31 through the exhaust pipe 6, thereby insulating the cryogenic tank 2 with cold air. When the cold air is discharged through the exhaust pipe 6, the motor 51 is started to drive the rotating shaft 52 to rotate. When the rotating shaft 52 rotates, it will drive the gear plate 53 to rotate. When the gear plate 53 rotates, it will drive the gear ring 54 to rotate on the inner wall of the annular groove. When the gear ring 54 rotates, it will drive the driven shaft 55 to rotate. When the driven shaft 55 rotates, it will drive the fan plate 56 to rotate. During the rotation of the fan plate 56, it will drive the cold air to rotate, so that the cold air can be evenly distributed, thereby providing overall heat insulation for the cryogenic tank 2.

[0030] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A thermally insulated cryogenic liquid storage tank, comprising a base (1), a cryogenic tank (2) disposed above the base (1), an air inlet pipe (201) fixedly connected to the top of the cryogenic tank (2), a refrigeration device (3) fixedly connected to the surface of the base (1), a cooling pipe (4) fixedly connected to the output end of the refrigeration device (3), a solenoid valve (5) and an exhaust pipe (6) fixedly connected to the surface of the cooling pipe (4), and a support plate (7) fixedly connected to the surface of the base (1), characterized in that, Also includes; Positioning mechanism (10), the positioning mechanism (10) includes positioning ring (14), the bottom of the positioning ring (14) is hinged with pull plate (15), one end of the pull plate (15) away from the positioning ring (14) is hinged with contact disc (16); Thermal insulation mechanism (30), the thermal insulation mechanism (30) includes rising ring (36), the surface of the rising ring (36) is fixedly connected with buffer telescopic rod (37), one end of the buffer telescopic rod (37) away from the rising ring (36) is fixedly connected with sealing ring (38); Diffusion mechanism (50), the diffusion mechanism (50) includes tooth ring (54), the top of the tooth ring (54) is fixedly connected with driven shaft (55), the surface of the driven shaft (55) is fixedly connected with fan plate (56).

2. The insulated cryogenic liquid storage tank of claim 1, wherein: The surface of the base (1) is provided with a groove, the inner wall of the air inlet pipe (201) and the inner wall of the cryogenic tank (2) are interconnected, and one end of the cold pipe (4) away from the refrigeration device (3) is fixedly connected with the lower surface of the cryogenic tank (2).

3. A thermally insulated cryogenic liquid storage tank according to claim 2, characterized in that: The positioning mechanism (10) includes a support disc (11), the surface of the support disc (11) is provided with a moving groove, the inner wall of the moving groove is slidably connected with a moving plate (12), the surface of the moving plate (12) is fixedly connected with a driven rod (13), the surface of the base (1) is fixedly connected with a positioning barrel (17), and the bottom of the inner wall of the positioning barrel (17) is fixedly connected with a force telescopic rod (18).

4. The insulated cryogenic liquid storage tank of claim 3, wherein: The bottom of the support disc (11) is fixedly connected with the top of the support plate (7), the bottom of the support disc (11) is fixedly connected with the top of the support plate (7), the bottom of the support disc (11) is fixedly connected with the top of the support plate (7), the bottom of the support disc (11) is fixedly connected with the top of the support plate (7), the bottom of the support disc (11) is fixedly connected with the top of the support plate (7), the bottom of the support disc (11) is fixedly connected with the top of the support plate (7), the bottom of the support disc (11) is fixedly connected with the top of the support plate (7), the bottom of the support disc (11) is fixedly connected with the top of the support plate (7), the bottom of the support disc (11) is fixedly connected with the top of the support plate (7), the bottom of the support disc (11) is fixedly connected with the top of the support plate (7), the bottom of the support disc (11) is fixedly connected with the top of the support plate (7), the bottom of the support disc (11) is fixedly connected with the top of the support plate (7), the bottom of the support disc (11) is fixedly connected with the top of the support plate (7), the bottom of the support disc (11) is fixedly connected with the top of the support plate (7), the bottom of the support disc (11) is fixedly connected with the top of the support plate (7), the bottom of the support disc (11) is fixedly connected with the top of the support plate (7), the bottom of the support disc (11) is fixedly connected with the top of the support plate (7), the bottom of the support disc (11) is fixedly connected with the top of the support plate (7), the bottom of the support disc (11) is fixedly connected with the top of the support plate (7), the bottom of the support disc (11) is fixedly connected with the top of the support plate (7), the bottom of 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top of the support plate (7), the bottom of the support disc (11) is fixedly connected with the top of the support plate (7), the bottom of the support disc (11) is fixedly connected with the top of the support plate (7), the bottom of the support disc (11) is fixedly connected with the top of the support plate (7), the bottom of the support disc (11) is fixedly connected with the top of the support plate (7), the bottom of the support disc (11) is fixedly connected with the top of the support plate (7), the bottom of the support disc (11) is fixedly connected with the top of the support plate (7), the bottom of the support disc (11) is fixedly connected with the top of the support plate (7), the bottom of the support disc (11) is fixedly connected with the top of the support plate (7), the bottom of the support disc (11) is fixedly connected with the top of the support plate (7), the bottom of the support disc (11) is fixedly connected with the top of the support plate (7), the bottom of the support disc (11) is fixedly connected 5. A thermally insulated cryogenic liquid storage tank according to claim 4, wherein: ​ 6. The thermally insulated cryogenic liquid storage tank of claim 5, wherein: ​ 7. A thermally insulated cryogenic liquid storage tank according to claim 6, characterized in that: ​ 8. A thermally insulated cryogenic liquid storage tank according to claim 7, characterized in that: The surface of the tooth ring (54) is in sliding connection with the inner wall of the ring type groove, the tooth disc (53) is in mutual engagement with the tooth ring (54), the bottom of the support disc (11) is fixedly connected with the surface of the motor (51), one end of the rotating shaft (52) is close to the tooth disc (53), penetrates through the bottom of the support disc (11) and is fixedly connected with the bottom of the tooth disc (53), and four driven shafts (55) and fan plates (56) are arranged.

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