High-efficiency evaporated gas recycling and condensing equipment and method for liquid argon storage tank

Abstract

The invention relates to the technical field of gas recovery, and discloses liquid argon storage tank efficient evaporated gas recovery condensation equipment and a method thereof.The liquid argon storage tank efficient evaporated gas recovery condensation equipment comprises a buffer tank, a condensation tank and a booster pump, gas conveying pipelines are fixedly connected to one side of the buffer tank and one side of the booster pump, and adjusting valves are fixedly installed on the opposite sides of the two gas conveying pipelines; a fixing plate is fixedly connected to the top of the adjusting valve, a rotating assembly, an adjusting assembly and a fixing assembly are arranged in the fixing plate, the rotating assembly is used for manually adjusting the opening size of the adjusting valve, and the adjusting assembly is used for automatically adjusting the opening size of the adjusting valve. A first rotating disc drives a gear to conduct transmission to achieve valve opening control, sudden process adjustment can be dealt with, the adjusting assembly monitors temperature changes through a first sensor and is driven by an electric push rod, linkage adjustment is conducted through a chain wheel set and a chain wheel, real-time response of flow is achieved, different working environments and process requirements are flexibly adapted, and the applicability of equipment is improved.

Description

Technical Field

[0001] This invention relates to the field of gas recovery technology, specifically to a high-efficiency evaporation gas recovery and condensation device and method for liquid argon storage tanks. Background Technology

[0002] During the storage of liquid argon, liquid argon storage tanks are prone to generating a large amount of vapor gas due to factors such as ambient temperature and pressure fluctuations inside the tank. Direct discharge of this vapor gas would not only waste argon resources but also pose safety hazards due to the low-temperature characteristics of argon, while also increasing the production costs of enterprises. Therefore, high-efficiency vapor gas recovery and condensation equipment for liquid argon storage tanks is mainly used to recover, condense and liquefy this vapor gas, realizing the recycling of argon. It is widely used in industries such as metallurgy, chemical industry, and medical industry that rely on liquid argon as a raw material or protective gas. The high-efficiency evaporation gas recovery and condensation equipment for liquid argon storage tanks mainly consists of a buffer tank, a condenser, a booster pump, and supporting control and monitoring components. The buffer tank balances fluctuations in the evaporation gas flow, preventing instantaneous flow from impacting subsequent systems. The condenser cools and liquefies gaseous argon through a refrigeration system, completing the core recovery step. The booster pump provides power to the evaporation gas, ensuring it meets the pressure requirements for condensation. Furthermore, sensors, pressure gauges, level gauges, and other monitoring components provide real-time feedback on system status, offering data support for equipment operation. Existing liquid argon storage tank high-efficiency evaporation gas recovery and condensation equipment has a single adjustment method, which is difficult to adapt to complex working conditions, or has poor flow stability. It lacks a fixed structure for the adjustment components, and is prone to valve opening deviation due to vibration and temperature changes, causing flow fluctuations, affecting the condensation effect, and resulting in limited recovery efficiency. It also lacks a circulation treatment mechanism, and the uncondensed evaporation gas is directly discharged, resulting in incomplete resource recovery. Summary of the Invention

[0003] The purpose of this invention is to provide a high-efficiency evaporation gas recovery and condensation device and method for liquid argon storage tanks, and to solve the following technical problems: the existing evaporation gas recovery and condensation devices have a single adjustment method, which is difficult to adapt to complex working conditions, and the flow stability is poor. The valve opening is easily deviated due to vibration and temperature changes, which causes flow fluctuations and affects the condensation effect. At the same time, the resource recovery is incomplete.

[0004] The objective of this invention can be achieved through the following technical solution: a high-efficiency evaporation gas recovery and condensation device for liquid argon storage tank, comprising a buffer tank, a condensation tank and a booster pump, wherein a gas delivery pipeline is fixedly connected to one side of both the buffer tank and the booster pump, and a regulating valve is fixedly installed on the opposite side of the two gas delivery pipelines, and a fixing plate is fixedly connected to the top of the regulating valve, and a rotating component, an adjusting component and a fixing component are provided inside the fixing plate; The rotary assembly is used to manually adjust the opening size of the regulating valve; The regulating component is used to automatically adjust the opening size of the regulating valve; The fixing component is used to secure the rotating component, ensuring the stability of the flow rate.

[0005] As a preferred embodiment of the present invention: the rotating assembly includes a rotating shaft rotatably connected inside the fixed plate, a gear one fixedly connected to the bottom end of the rotating shaft, a valve stem rotatably connected to the top of the regulating valve, a gear two fixedly connected to the top of the valve stem, and the gear two meshing with the gear one; The adjustment assembly includes two chain wheel sets, which are disposed inside the fixed plate. The outer wall of the rotating shaft is fixedly connected to one side of the inner side of one of the chain wheel sets. An electric push rod is fixedly connected inside the fixed plate. A moving plate is fixedly connected to the drive end of the electric push rod. The outer wall of the moving plate is slidably connected to the inner side of the fixed plate. A sprocket is rotatably connected to the top of the moving plate. The sprocket meshes with the chain wheel sets. The fixing assembly includes a fixing block, a rotating block, and a worm gear. The outer wall of the fixing block is fixedly connected to the inside of the fixing plate. The outer wall of the rotating block is rotatably connected to the inside of the fixing plate. The outer wall of the worm gear is rotatably connected to the inside of the fixing plate. The outer wall of the rotating block is fixedly connected with worm gear teeth, which mesh with the worm gear. The rotating block has multiple evenly distributed grooves inside, and a sliding rod is slidably connected inside the groove. A sliding plate is fixedly connected to the top of the sliding rod, and the outer wall of the sliding plate is slidably connected inside the fixed block.

[0006] As a preferred embodiment of the present invention: a connecting pipe is fixedly connected to one side of the top of the buffer tank, the end of the connecting pipe away from the buffer tank is fixedly connected to the top of the condenser, an air inlet pipe is fixedly connected to the top of the buffer tank, and a valve assembly is fixedly connected to the end of the air inlet pipe away from the buffer tank.

[0007] As a preferred embodiment of the present invention: a conveying pipe is fixedly connected to the bottom of the valve assembly, the bottom end of the conveying pipe is fixedly connected to the top of the booster pump, a circulation pipe is fixedly connected to the front side of the conveying pipe, the end of the circulation pipe away from the conveying pipe is fixedly connected to one side of one of the gas conveying pipes, and an output pipe is fixedly connected to the front side of the condenser.

[0008] As a preferred embodiment of the present invention: a sensor is fixedly connected to the front side of the buffer tank, a sensor is fixedly connected to the front side of the condenser tank, a level gauge is fixedly connected to the front side of the buffer tank, a level gauge is fixedly connected to the front side of the condenser tank, a pressure gauge is fixedly connected to the top front side of the buffer tank, and a pressure gauge is fixedly connected to one side of the conveying pipeline.

[0009] As a preferred embodiment of the present invention: the bottom of the booster pump is fixedly connected to a plurality of evenly distributed support rods, the bottom of the buffer tank, the condenser tank and the support rods are all fixedly connected to a base, a motor is fixedly connected to one side of the top of one of the bases, the drive end of the motor is fixedly connected to one side of the booster pump, a control box is provided on the top of the motor, and a support frame is fixedly connected to the bottom of the control box.

[0010] As a preferred embodiment of the present invention: a turntable is fixedly connected to the top end of the rotating shaft, and a turntable is fixedly connected to the front end of the worm gear.

[0011] As a preferred embodiment of the present invention: an anti-slip pad is fixedly connected to one side of the slide plate, one side of the anti-slip pad abuts against the outer wall of the rotating shaft, and sliders are fixedly connected to both sides of the slide plate, with the outer wall of the slider slidably connected to the inside of the fixed block.

[0012] A highly efficient method for recovering and condensing evaporated gas from a liquid argon storage tank includes: Step 1: The vaporized gas generated in the liquid argon storage tank enters the recovery equipment through the inlet pipe. Under the control of the valve group, the vaporized gas first enters the buffer tank. The buffer tank can balance the fluctuation of the vaporized gas flow rate. When the pressure in the liquid argon storage tank changes instantaneously, causing the vaporized gas flow rate to suddenly increase or decrease, the buffer tank can temporarily store or replenish a portion of the vaporized gas to prevent a large amount of vaporized gas from directly impacting the subsequent condensation system, making the airflow entering the condensation system more stable. Step 2: After buffering, the evaporated gas enters the booster pump through the delivery pipeline. The booster pump pressurizes the evaporated gas, giving it a higher pressure. The pressurized evaporated gas is then transported through the gas delivery pipeline. Under the further regulation of the regulating valve, the evaporated gas enters the condenser through the buffer tank and connecting pipeline. Inside the condenser, the refrigeration system lowers the temperature, cooling and liquefying the gaseous argon, thereby recovering the liquid argon evaporated gas. If the condensation effect is not ideal after one condensation, the incompletely condensed evaporated gas can be sent back to a suitable processing location through the circulation pipeline for further processing, improving the recovery efficiency of the evaporated gas. Step 3: Level gauge 1 and level gauge 2 monitor the liquid level of the buffer tank and the condenser tank respectively, and pressure gauge 1 monitors the pressure of the buffer tank. The data is transmitted to the control box to realize intelligent adjustment of the equipment. Sensor 1 and sensor 2 detect the internal temperature of the buffer tank and the condenser tank respectively. When the temperature rises, the evaporation rate increases. Then, the electric push rod drives the adjustment component to drive the rotating component to operate and realize the regulation of the regulating valve, increasing its valve opening. Step 4: When stable evaporation gas recovery and condensation are required, the rotating component can be fixed and locked to prevent temperature changes from affecting valve opening. The valve opening can be manually adjusted through the rotating component, allowing the equipment to flexibly adapt to different working environments and process requirements, improving the applicability and flexibility of the equipment and meeting these diverse needs.

[0013] The beneficial effects of this invention are: (1) The present invention is equipped with a rotating component and an adjusting component at the same time. The rotating component drives the gear transmission through a turntable to control the valve opening, which can cope with sudden process adjustments. The adjusting component monitors temperature changes through a sensor, is driven by an electric push rod, and is adjusted through the chain wheel group and sprocket linkage to achieve real-time flow response. The dual adjustment function solves the problem of the single adjustment method of the existing equipment, can flexibly adapt to different working environments and process requirements, and improve the applicability of the equipment.

[0014] (2) The present invention drives the worm gear to rotate by rotating the turntable, and the rotation of the worm gear drives the rotating block to rotate through the worm wheel teeth. The rotation of the rotating block drives the slide bar to move, and the slide bar can drive the slide plate to move by moving. The slide plate can fix the rotating shaft by moving, thereby fixing the regulating valve, ensuring the stable operation of the entire recovery condensation system, meeting diverse needs, ensuring the stability of parameters such as flow rate and pressure during the condensation process, and reducing safety risks and resource waste caused by fluctuations.

[0015] (3) The present invention balances the flow fluctuations by using a buffer tank to avoid impacting the condensation system. At the same time, a circulation pipeline is set up to send the incompletely condensed evaporating gas back to the processing flow for reprocessing. With the power support of the booster pump and the efficient cooling of the condenser, the liquefaction rate of the evaporating gas is greatly improved, the problem of incomplete recovery is solved, the waste of argon gas is reduced, and the production cost of enterprises is reduced. Attached Figure Description

[0016] The invention will now be further described with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the buffer tank and the condenser tank in this invention; Figure 3 This is a schematic diagram of the booster pump and valve assembly in this invention; Figure 4 This is a schematic diagram of the regulating valve in this invention; Figure 5 This is a schematic diagram of the fixing plate in this invention; Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle; Figure 7This is a schematic diagram of the adjustment component in this invention; Figure 8 This is a schematic diagram of the rotating component in this invention; Figure 9 This is a schematic diagram of the fixing component in this invention; Figure 10 This is a schematic diagram of the rotating block in this invention; Figure 11 This is a schematic diagram of the fixing block in this invention.

[0018] Attached Figure Descriptions: 1. Buffer Tank; 3. Rotating Assembly; 4. Adjusting Assembly; 5. Fixing Assembly; 11. Condensate Tank; 12. Booster Pump; 13. Gas Delivery Pipeline; 14. Regulating Valve; 15. Fixing Plate; 16. Connecting Pipeline; 17. Inlet Pipeline; 18. Valve Assembly; 19. Delivery Pipeline; 20. Circulation Pipeline; 21. Output Pipeline; 22. Sensor 1; 23. Sensor 2; 24. Level Gauge 1; 25. Level Gauge 2; 26. Pressure Gauge 1 27. Pressure gauge II; 28. Support rod; 29. ​​Motor; 30. Control box; 31. Rotating shaft; 32. Gear I; 33. Gear II; 34. Valve stem; 35. Turntable I; 41. Chain wheel assembly; 42. Sprocket; 43. Moving plate; 44. Electric push rod; 51. Fixed block; 52. Rotating block; 53. Worm gear teeth; 54. Worm; 55. Slide groove; 56. Slide rod; 57. Slide plate; 58. Anti-slip mat; 59. Slider; 60. Turntable II. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1 - Figure 11 As shown, the present invention is a high-efficiency evaporation gas recovery and condensation device for liquid argon storage tank, including a buffer tank 1, a condenser tank 11 and a booster pump 12. Gas delivery pipes 13 are fixedly connected to one side of the buffer tank 1 and the booster pump 12. A regulating valve 14 is fixedly installed on the opposite side of the two gas delivery pipes 13. A fixing plate 15 is fixedly connected to the top of the regulating valve 14. The fixing plate 15 is provided with a rotating component 3, an adjusting component 4 and a fixing component 5 inside. Rotating component 3 is used to manually adjust the opening size of regulating valve 14, regulating component 4 is used to automatically adjust the opening size of regulating valve 14, and fixing component 5 is used to fix rotating component 3 to ensure flow stability. Buffer tank 1 is used to balance fluctuations in the evaporation gas flow rate. When the pressure inside the liquid argon storage tank changes instantaneously, causing a sudden increase or decrease in the evaporation gas flow rate, buffer tank 1 can temporarily store or replenish a portion of the evaporation gas, preventing a large amount of evaporation gas from directly impacting condenser tank 11, making the gas flow entering condenser tank 11 more stable, which helps improve the stability and efficiency of the condensation process. Condenser tank 11 is the key location for condensing evaporation gas. By lowering the temperature inside the tank through the refrigeration system, the gaseous argon entering it is cooled and liquefied, thereby realizing the recovery of liquid argon evaporation gas for re-storage and reuse. Booster pump 12 can pressurize the evaporation gas from the liquid argon storage tank, giving the evaporation gas a higher pressure. After pressurization, the evaporation gas is more easily cooled and liquefied in the subsequent condensation process, while also ensuring stable flow of the evaporation gas in the internal pipelines of the equipment, improving the working efficiency of the entire recovery system.

[0021] The rotating assembly 3 includes a rotating shaft 31 rotatably connected inside the fixed plate 15. A gear 32 is fixedly connected to the bottom end of the rotating shaft 31. A valve stem 34 is rotatably connected to the top of the regulating valve 14. A gear 33 is fixedly connected to the top of the valve stem 34. The gear 33 meshes with the gear 32. The rotating shaft 31 is used to drive the gear 1 32 to rotate. The rotation of the gear 1 32 can drive the gear 2 33 to rotate. The rotation of the gear 2 33 can drive the valve stem 34 to rotate. The rotation of the valve stem 34 can adjust the opening and closing degree of the regulating valve 14. The regulating valve 14 is used to control the flow transmission between the buffer tank 1 and the booster pump 12. The adjusting assembly 4 includes two chain wheel sets 41, which are disposed inside the fixed plate 15. The outer wall of the rotating shaft 31 is fixedly connected to one side of the inner side of one of the chain wheel sets 41. An electric push rod 44 is fixedly connected inside the fixed plate 15. A moving plate 43 is fixedly connected to the drive end of the electric push rod 44. The outer wall of the moving plate 43 is slidably connected to the inner side of the fixed plate 15. A sprocket 42 is rotatably connected to the top of the moving plate 43. The sprocket 42 meshes with the chain wheel set 41. The chain wheel assembly 41 includes two sprockets and a chain. The two sprockets of the chain wheel assembly 41 are rotatably connected inside the fixed plate 15. The chain of the chain wheel assembly 41 meshes with the sprocket 42. One sprocket of one chain wheel assembly 41 is fixedly connected to the outer wall of the rotating shaft 31. The electric push rod 44 is used to drive the moving plate 43 to move. The moving plate 43 can drive the sprocket 42 to move. The moving sprocket 42 can drive the chain of the chain wheel assembly 41 to rotate, thereby driving the sprocket of the chain wheel assembly 41 to rotate. Subsequently, it drives the rotating shaft 31 to rotate, causing the valve stem 34 to rotate, thereby adjusting the valve opening of the regulating valve 14. The fixing component 5 includes a fixing block 51, a rotating block 52, and a worm gear 54. The outer wall of the fixing block 51 is fixedly connected to the inside of the fixing plate 15. The outer wall of the rotating block 52 is rotatably connected to the inside of the fixing plate 15. The outer wall of the worm gear 54 is rotatably connected to the inside of the fixing plate 15. The outer wall of the rotating block 52 is fixedly connected with worm gear teeth 53, which mesh with the worm gear 54. The interior of the rotating block 52 is provided with multiple evenly distributed sliding grooves 55. The interior of the sliding grooves 55 is slidably connected with a sliding rod 56. The top of the sliding rod 56 is fixedly connected with a sliding plate 57. The outer wall of the sliding plate 57 is slidably connected to the inside of the fixing block 51. The fixed block 51 is used to fix the slide plate 57. The rotating block 52 can drive the slide rod 56 to move by rotating. The worm gear 54 is used to drive the worm wheel teeth 53 to rotate. The worm wheel teeth 53 can drive the rotating block 52 to rotate by rotating. The rotating block 52 can drive the slide rod 56 to move by rotating. The slide groove 55 is used to fix the movement path of the slide rod 56. The slide rod 56 can drive the slide plate 57 to move by moving. The slide plate 57 can fix the rotating shaft 31 by moving, thereby fixing the regulating valve 14 at the current opening degree. This prevents the valve opening degree from changing due to external interference or unstable factors inside the equipment. It can avoid the instability of system pressure, flow and other parameters caused by the fluctuation of valve opening degree, thereby ensuring the stable operation of the entire recovery condensation system.

[0022] A connecting pipe 16 is fixedly connected to the top side of the buffer tank 1. The end of the connecting pipe 16 away from the buffer tank 1 is fixedly connected to the top of the condenser tank 11. An air inlet pipe 17 is fixedly connected to the top of the buffer tank 1. A valve group 18 is fixedly connected to the end of the air inlet pipe 17 away from the buffer tank 1. A conveying pipe 19 is fixedly connected to the bottom of the valve group 18. The bottom end of the conveying pipe 19 is fixedly connected to the top of the booster pump 12. A circulation pipe 20 is fixedly connected to the front side of the conveying pipe 19. The end of the circulation pipe 20 away from the conveying pipe 19 is fixedly connected to one side of one of the gas conveying pipes 13. An output pipe 21 is fixedly connected to the front side of the condenser tank 11. The connecting pipe 16 is used to transfer evaporated gas between the buffer tank 1 and the condenser tank 11, enabling the evaporated gas entering from the inlet pipe 17 to be reasonably distributed between the two tanks, or to transfer the evaporated gas at different processing stages. This ensures that the evaporated gas can pass through the necessary processing steps sequentially according to the equipment design process, achieving better recovery results. The main function of the inlet pipe 17 is to transport the evaporated gas generated in the liquid argon storage tank to the recovery equipment, guiding the evaporated gas from the storage tank to the subsequent processing stages. The valve group 18 can flexibly adjust the flow rate of the evaporated gas entering the recovery equipment according to the equipment's operating requirements. When maintenance of a certain processing unit is required, or... When the backup recovery path is activated, the flow direction of the evaporated gas is changed by operating valve group 18, enabling the equipment to operate flexibly under different working conditions. The delivery pipeline 19 is connected to the booster pump 12. After the booster pump 12 pressurizes the evaporated gas, the pressurized evaporated gas is delivered to the subsequent processing unit through this pipeline. The pressurized evaporated gas is more easily cooled and liquefied in the condenser, improving the condensation efficiency. The circulation pipeline 20 is used to circulate the evaporated gas inside the equipment. After the evaporated gas is cooled and liquefied into liquid argon in the condenser, the liquid argon can be exported from the recovery equipment through the output pipeline 21 and delivered to the container for storing liquid argon, realizing the recovery and reuse of liquid argon.

[0023] Sensor 1 22 is fixedly connected to the front side of buffer tank 1, sensor 23 is fixedly connected to the front side of condenser tank 11, level gauge 1 24 is fixedly connected to the front side of buffer tank 1, level gauge 25 is fixedly connected to the front side of condenser tank 11, pressure gauge 1 26 is fixedly connected to the top front side of buffer tank 1, pressure gauge 27 is fixedly connected to one side of delivery pipeline 19, multiple evenly distributed support rods 28 are fixedly connected to the bottom of booster pump 12, bases are fixedly connected to the bottom of buffer tank 1, condenser tank 11 and support rods 28, motor 29 is fixedly connected to one side of the top of one of the bases, the drive end of motor 29 is fixedly connected to one side of booster pump 12, control box 30 is set on the top of motor 29, and support frame is fixedly connected to the bottom of control box 30. Sensor 1 22 is used to detect the temperature inside buffer tank 1 and determine the change of vapor inside based on its temperature change. Sensor 2 23 is used to detect the temperature inside condenser tank 11 and determine the change of vapor inside based on its temperature change. Level gauge 1 24 is used to display the liquid level inside buffer tank 1. Level gauge 2 25 is used to display the liquid level inside condenser tank 11. Pressure gauge 1 26 is used to detect the pressure inside buffer tank 1. Pressure gauge 2 27 is used to detect the pressure inside delivery pipeline 19. Support rod 28 is used to support booster pump 12. Motor 29 is used to drive booster pump 12 and provide power to the system. Control box 30 is used to receive sensor 1 22, sensor 2 23, pressure gauge 1 26 and pressure gauge 2 27, execute preset control logic, and send commands to actuator motor 29 and electric push rod 44.

[0024] Turntable 35 is fixedly connected to the top of the rotating shaft 31, turntable 60 is fixedly connected to the front end of the worm gear 54, anti-slip pad 58 is fixedly connected to one side of the slide plate 57, one side of the anti-slip pad 58 abuts against the outer wall of the rotating shaft 31, and sliders 59 are fixedly connected to both sides of the slide plate 57, with the outer wall of the slider 59 slidably connected to the inside of the fixed block 51. Turntable 1 35 is used to drive the rotating shaft 31 to rotate, turntable 2 60 is used to drive the worm gear 54 to rotate, anti-slip pad 58 is used to reinforce the fixation of the sliding plate 57 to the rotating shaft 31, and slider 59 is used to fix the movement path of the sliding plate 57.

[0025] A highly efficient method for recovering and condensing evaporated gas from a liquid argon storage tank includes: Step 1: The vaporized gas generated in the liquid argon storage tank enters the recovery equipment through the inlet pipe 17. Under the control of the valve group 18, the vaporized gas first enters the buffer tank 1. The buffer tank 1 can balance the fluctuation of the vaporized gas flow rate. When the pressure in the liquid argon storage tank changes instantaneously, causing the vaporized gas flow rate to suddenly increase or decrease, the buffer tank 1 can temporarily store or replenish a portion of the vaporized gas to prevent a large amount of vaporized gas from directly impacting the subsequent condensation system, making the airflow entering the condensation system more stable. Step 2: After buffering, the evaporated gas enters the booster pump 12 through the delivery pipe 19. The booster pump 12 pressurizes the evaporated gas, giving it a higher pressure. The pressurized evaporated gas is then transported through the gas delivery pipe 13. Under the further regulation of the regulating valve 14, the evaporated gas enters the condenser tank 11 through the buffer tank 1 and the connecting pipe 16. Inside the condenser tank 11, the temperature inside the tank is reduced by the refrigeration system, cooling and liquefying the gaseous argon, thereby realizing the recovery of the liquid argon evaporated gas. If the condensation effect is not ideal after one condensation, the incompletely condensed evaporated gas can be sent back to a suitable processing location through the circulation pipe 20 for further processing, thereby improving the recovery efficiency of the evaporated gas. Step 3: Level gauge 1 24 and level gauge 2 25 monitor the liquid level of buffer tank 1 and condenser tank 11 respectively, and pressure gauge 1 26 monitors the pressure of buffer tank 1 and transmits the data to control box 30 to realize intelligent adjustment of the equipment. Sensor 1 22 and sensor 2 23 detect the internal temperature of buffer tank 1 and condenser tank 11 respectively. When the temperature rises, the evaporation rate increases. Then, the electric push rod 44 drives the adjustment component 4 to drive the rotating component 3 to operate, thereby controlling the adjustment valve 14 and increasing its valve opening. Step 4: When stable evaporation gas recovery and condensation are required, the rotating component 3 can be fixed and locked by 6 to prevent temperature changes from affecting the valve opening. The valve opening of the regulating valve 14 can be manually adjusted by the rotating component 3, so that the equipment can flexibly adapt to different working environments and process requirements, improve the applicability and flexibility of the equipment, and meet these diverse needs.

[0026] The working principle of this invention: The evaporated gas generated by the liquid argon storage tank first enters the recovery system through the inlet pipe 17. After the flow rate is controlled by the valve group 18, it preferentially enters the buffer tank 1. The buffered evaporated gas enters the booster pump 12 through the delivery pipe 19. The booster pump 12, driven by the motor 29, pressurizes the evaporated gas to meet the subsequent condensation requirements. The pressurized evaporated gas is transmitted through the gas delivery pipe 13, and the flow rate is precisely controlled by the regulating valve 14. The initial opening of the regulating valve 14 is achieved by rotating the turntable 35, which causes the rotating shaft 31 to rotate. Subsequently, the flow rate is controlled by the gear 32 and... The gear 2 33 drives the valve stem 34 to rotate, thereby adjusting its opening. After adjustment, the temperature of the buffer tank 1 is detected by the sensor 22. When the internal temperature rises, it means that the amount of vapor increases. The control box 30 controls the electric push rod 44 to move the moving plate 43. The movement of the moving plate 43 drives the sprocket 42 to move, and through the chain wheel group 41, it drives the rotating shaft 31 to rotate, thereby completing the adjustment of the regulating valve 14. This can promptly handle the increased vapor and avoid the waste of vapor due to untimely handling, thus significantly improving the recovery efficiency of liquid argon. In situations where high flow stability is required, rotating the turntable 60 can drive the worm gear 54 to rotate. The rotation of the worm gear 54 drives the rotating block 52 to rotate through the worm wheel teeth 53. The rotation of the rotating block 52 drives the slide bar 56 to move. The movement of the slide bar 56 can drive the sliding plate 57 to move. The movement of the sliding plate 57 can fix the rotating shaft 31, thereby fixing the regulating valve 14, thus ensuring the stable operation of the entire condensate recovery system and meeting diverse needs. After adjustment, the evaporated gas enters the condenser 11 through the connecting pipe 16. The refrigeration system in the condenser lowers the temperature inside the tank, cooling and liquefying the gaseous argon, thus realizing liquid argon recovery. If the condensation is incomplete in one step, the unliquefied evaporated gas flows back to the gas delivery pipe 13 or delivery pipe 19 through the circulation pipe 20, and re-enters the pressurization and adjustment stage for further processing, which greatly improves the recovery efficiency. Finally, the liquefied liquid argon is discharged through the output pipe 21, completing the recovery.

[0027] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A high-efficiency evaporation gas recovery and condensation device for liquid argon storage tank, comprising a buffer tank (1), a condenser (11), and a booster pump (12), characterized in that, Gas delivery pipes (13) are fixedly connected to one side of the buffer tank (1) and the booster pump (12). A regulating valve (14) is fixedly installed on the opposite side of the two gas delivery pipes (13). A fixing plate (15) is fixedly connected to the top of the regulating valve (14). A rotating component (3), a regulating component (4) and a fixing component (5) are provided inside the fixing plate (15). The rotating component (3) is used to manually adjust the opening size of the regulating valve (14); The regulating component (4) is used to automatically adjust the opening size of the regulating valve (14); The fixing component (5) is used to fix the rotating component (3) to ensure the stability of the flow.

2. The high-efficiency evaporation gas recovery and condensation equipment for liquid argon storage tanks according to claim 1, characterized in that, The rotating assembly (3) includes a rotating shaft (31) rotatably connected inside the fixed plate (15), a gear one (32) fixedly connected to the bottom end of the rotating shaft (31), a valve stem (34) rotatably connected to the top of the regulating valve (14), a gear two (33) fixedly connected to the top of the valve stem (34), and the gear two (33) meshing with the gear one (32). The adjustment assembly (4) includes two chain wheel sets (41), which are disposed inside the fixed plate (15). The outer wall of the rotating shaft (31) is fixedly connected to one side of the inner side of one of the chain wheel sets (41). An electric push rod (44) is fixedly connected inside the fixed plate (15). A moving plate (43) is fixedly connected to the drive end of the electric push rod (44). The outer wall of the moving plate (43) is slidably connected inside the fixed plate (15). A sprocket (42) is rotatably connected to the top of the moving plate (43). The sprocket (42) meshes with the chain wheel set (41). The fixing component (5) includes a fixing block (51), a rotating block (52), and a worm (54). The outer wall of the fixing block (51) is fixedly connected to the inside of the fixing plate (15). The outer wall of the rotating block (52) is rotatably connected to the inside of the fixing plate (15). The outer wall of the worm (54) is rotatably connected to the inside of the fixing plate (15). The outer wall of the rotating block (52) is fixedly connected with worm gear teeth (53), which mesh with the worm (54). The rotating block (52) has multiple evenly distributed grooves (55) inside. A slide rod (56) is slidably connected inside the groove (55). A slide plate (57) is fixedly connected to the top of the slide rod (56). The outer wall of the slide plate (57) is slidably connected inside the fixed block (51).

3. The high-efficiency evaporation gas recovery and condensation equipment for liquid argon storage tank according to claim 2, characterized in that, A connecting pipe (16) is fixedly connected to one side of the top of the buffer tank (1). The end of the connecting pipe (16) away from the buffer tank (1) is fixedly connected to the top of the condenser (11). An air inlet pipe (17) is fixedly connected to the top of the buffer tank (1). A valve group (18) is fixedly connected to the end of the air inlet pipe (17) away from the buffer tank (1).

4. The high-efficiency evaporation gas recovery and condensation equipment for liquid argon storage tank according to claim 3, characterized in that, The bottom of the valve assembly (18) is fixedly connected to a conveying pipe (19), the bottom end of the conveying pipe (19) is fixedly connected to the top of the booster pump (12), the front side of the conveying pipe (19) is fixedly connected to a circulation pipe (20), the end of the circulation pipe (20) away from the conveying pipe (19) is fixedly connected to one side of one of the gas conveying pipes (13), and the front side of the condenser (11) is fixedly connected to an output pipe (21).

5. The high-efficiency evaporation gas recovery and condensation equipment for liquid argon storage tank according to claim 4, characterized in that, Sensor 1 (22) is fixedly connected to the front side of the buffer tank (1), sensor 2 (23) is fixedly connected to the front side of the condenser tank (11), level gauge 1 (24) is fixedly connected to the front side of the buffer tank (1), level gauge 2 (25) is fixedly connected to the front side of the condenser tank (11), pressure gauge 1 (26) is fixedly connected to the front top of the buffer tank (1), and pressure gauge 2 (27) is fixedly connected to one side of the conveying pipe (19).

6. The high-efficiency evaporation gas recovery and condensation equipment for liquid argon storage tank according to claim 5, characterized in that, The bottom of the booster pump (12) is fixedly connected to a plurality of evenly distributed support rods (28). The bottom of the buffer tank (1), the condenser tank (11) and the support rods (28) are all fixedly connected to a base. A motor (29) is fixedly connected to one side of the top of one of the bases. The drive end of the motor (29) is fixedly connected to one side of the booster pump (12). A control box (30) is provided on the top of the motor (29). A support frame is fixedly connected to the bottom of the control box (30).

7. The high-efficiency evaporation gas recovery and condensation equipment for liquid argon storage tank according to claim 6, characterized in that, The top end of the rotating shaft (31) is fixedly connected to a turntable one (35), and the front end of the worm gear (54) is fixedly connected to a turntable two (60).

8. The high-efficiency evaporation gas recovery and condensation equipment for liquid argon storage tank according to claim 7, characterized in that, An anti-slip pad (58) is fixedly connected to one side of the slide plate (57), and one side of the anti-slip pad (58) abuts against the outer wall of the rotating shaft (31). Sliders (59) are fixedly connected to both sides of the slide plate (57), and the outer wall of the slider (59) is slidably connected to the inside of the fixed block (51).

9. A method for efficient recovery and condensation of evaporated gas from a liquid argon storage tank, using the efficient recovery and condensation equipment for liquid argon storage tanks as described in claim 8, characterized in that... include: Step 1: The vaporized gas generated in the liquid argon storage tank enters the recovery equipment through the inlet pipe (17). Under the control of the valve group (18), the vaporized gas first enters the buffer tank (1). The buffer tank (1) can balance the fluctuation of the vaporized gas flow rate. When the pressure in the liquid argon storage tank changes instantaneously, causing the vaporized gas flow rate to suddenly increase or decrease, the buffer tank (1) can temporarily store or replenish a portion of the vaporized gas to avoid a large amount of vaporized gas directly impacting the subsequent condensation system, making the airflow entering the condensation system more stable. Step 2: After buffering, the evaporated gas enters the booster pump (12) through the delivery pipe (19). The booster pump (12) pressurizes the evaporated gas, giving it a higher pressure. The pressurized evaporated gas is then transported through the gas delivery pipe (13). Under the further adjustment of the regulating valve (14), the evaporated gas enters the condenser (11) through the buffer tank (1) and the connecting pipe (16). Inside the condenser (11), the temperature inside the tank is reduced by the refrigeration system, cooling and liquefying the gaseous argon, thereby realizing the recovery of the liquid argon evaporated gas. If the condensation effect is not ideal, the evaporated gas that is not completely condensed can be sent back to the appropriate processing location through the circulation pipe (20) for further processing, thereby improving the recovery efficiency of the evaporated gas. Step 3: Level gauge 1 (24) and level gauge 2 (25) monitor the liquid level of buffer tank (1) and condenser tank (11) respectively. Pressure gauge 1 (26) monitors the pressure of buffer tank (1) and transmits the data to control box (30) to realize intelligent adjustment of equipment. Sensor 1 (22) and sensor 2 (23) detect the internal temperature of buffer tank (1) and condenser tank (11) respectively. When the temperature rises, the evaporation rate increases. Then, the electric push rod (44) drives the adjustment component (4) to drive the rotating component (3) to operate and realize the regulation of the regulating valve (14) to increase its valve opening. Step 4: When it is necessary to stabilize the evaporation gas recovery and condensation, the rotating component (3) can be fixed and locked by (6) to prevent its temperature change from causing the valve opening to be adjusted. The valve opening of the regulating valve (14) can be manually adjusted by the rotating component (3), so that the equipment can flexibly adapt to different working environments and process requirements, improve the applicability and flexibility of the equipment, and meet these diverse needs.

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