Accurate filling device for rare gas
Through multi-stage treatment including volume regulation, gradient dehumidification, pressure reduction buffering, and cold energy recovery, the problem of moisture influence in argon filling is solved, achieving accuracy and stability in argon filling and improving the equipment's performance and energy efficiency.
Patent Information
- Application Number
- CN202511028940.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-24
- Publication Date
- 2025-10-17
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Residual moisture in argon gas can easily lead to a decrease in weld strength and a reduction in corrosion resistance during high-pressure filling. In low-temperature environments, it may condense into ice, blocking pipelines or affecting the accuracy of flow meters. Existing technologies make it difficult to achieve precise filling.
A rare gas precision filling device was designed, which includes a volume adjustment mechanism, a gradient dehumidification mechanism, a pressure reduction buffer mechanism, and a cold energy recovery mechanism. Through multi-stage processing, the accuracy and stability of argon gas filling are ensured.
It enables flexible adjustment of argon gas volume, multi-stage dehumidification, pressure reduction buffering, and cold energy recovery, ensuring the accuracy and stability of argon gas filling, preventing welding quality problems and equipment frost, and improving the energy efficiency and environmental friendliness of the equipment.
Smart Images
Figure CN120799324A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of filling equipment, and in particular to a precise rare gas filling device. Background Art
[0002] Argon is a colorless, odorless, inert gas with extremely inactive chemical properties, reacting almost unresponsively with any substance at room temperature. This inertness makes it an ideal industrial shielding gas, widely used in processes such as argon arc welding and plasma welding, isolating the air and preventing metal oxidation. In the semiconductor field, argon is used in the vapor deposition and etching stages of chip manufacturing; in the lighting industry, it is filled into fluorescent lamps and neon lights to improve luminous efficiency; and in the medical field, its inertness is used to cool the superconducting magnets of nuclear magnetic resonance equipment. In industry, air separation units are used to separate and purify argon from liquid air, and high-purity argon is a key material for high-end manufacturing.
[0003] Due to its inert nature, argon is often used in welding processes. However, argon generally contains water vapor. When using argon for argon arc welding, the water vapor decomposes into hydrogen and oxygen at high temperatures. Hydrogen easily forms pores and cracks in the weld, while oxygen oxidizes the base metal, resulting in reduced weld strength and corrosion resistance. Furthermore, in low-temperature environments, such as when storing liquid argon or filling it at high pressure, water vapor can condense into ice, blocking pipelines or affecting flowmeter accuracy, resulting in fill volume deviations. Therefore, those skilled in the art have proposed a precise rare gas filling device to address these technical issues. Summary of the Invention
[0004] In view of the shortcomings of the existing technology, the present invention provides a precise filling device for rare gases, which solves the problem that residual moisture in high-pressure raw material argon gas is likely to affect subsequent use.
[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a rare gas precision filling device, comprising
[0006] Regulating box;
[0007] The filling box is arranged on one side of the regulating box;
[0008] The volume adjustment mechanism is provided inside the regulating box and is used to flexibly adjust the filling capacity of the argon gas according to the filling quantitative requirements of filling bottles of different volumes;
[0009] A gradient dehumidification mechanism is provided at the rear side of the regulating box and is used to perform multiple dehumidification processes on the argon gas after volume adjustment by the volume adjustment mechanism;
[0010] The pressure reducing buffer mechanism is arranged at the rear side of the adjusting box, and is used for multiple buffer pressure reduction treatment of the argon gas after the gradient dehumidification mechanism treatment.
[0011] The cold energy recovery mechanism is arranged above the filling box, and is used for recovering the cold energy generated in the argon gas after the pressure reducing buffer mechanism treatment, and filling the argon after the treatment.
[0012] Preferably, the volume adjusting mechanism comprises a fixed plate, the upper middle part of the inner side of the adjusting box is fixedly connected with the fixed plate, a plurality of volume tanks with different volumes are arranged on the fixed plate at equal intervals, the bottom of each volume tank is provided with an adjusting part, the upper middle part of the inner wall of the adjusting part is provided with a dynamic sealing ring made of polytetrafluoroethylene, and the top of the outer wall of the adjusting part is provided with a metal bellows sealing sleeve.
[0013] Preferably, the volume adjusting mechanism further comprises an outer ring seat, the middle part of the outer wall of each volume tank and adjusting part is provided with an outer ring seat, the left and right sides between each group of outer ring seats are connected through a spiral memory alloy sheet, the front and rear sides between each group of outer ring seats are connected through a telescopic adjusting rod, the upper middle part of the rear side of the adjusting box is provided with a temperature regulator, the upper middle part of the front side of the adjusting box is provided with an adjusting controller, the bottom of the inner side of the adjusting box is provided with a discharge bus duct, each branch pipe of the upper part of the discharge bus duct is connected with the bottom of the corresponding adjusting part, and each branch pipe of the discharge bus duct is provided with an electromagnetic valve two.
[0014] Preferably, the gradient dehumidification mechanism comprises a high-pressure linkage dryer, the middle part of the rear side of the adjusting box is provided with a high-pressure linkage dryer, which is used for compressing the argon pressure before filling into pressure, and condensing the water vapor contained in the argon into liquid state, the high-pressure linkage dryer is provided with a cyclone separator and a spiral guide plate matched with the cyclone separator, and the condensate water generated by the argon condensation is separated by the high-pressure gas rotation centrifugal force, the bottom of one side of the high-pressure linkage dryer is provided with a drain pipe, which is used for removing and discharging the condensate water in a pulse backflushing mode, and the gas inlet end of the high-pressure linkage dryer is communicated with the inside of the discharge bus duct through a connecting pipe.
[0015] Preferably, the gradient dehumidification mechanism further comprises a tank body, the middle part of the rear side of the high-pressure linkage drying machine is provided with the tank body, the middle part of the inner side of the tank body is provided with a mesh pipe, one end of the mesh pipe is connected with the exhaust end of the high-pressure linkage drying machine through a connecting pipe, the inside of the tank body is filled with adsorbed filling cotton, and a filter seat is arranged on the side of the inside of the tank body away from the high-pressure linkage drying machine.
[0016] Preferably, the pressure reduction buffer mechanism comprises a guide pipe, the rear end of the tank body is provided with the guide pipe, and the middle part of the rear end of the tank body is connected with one end of the guide pipe, a rough particle layer is arranged on the inner wall of the guide pipe, a plurality of drainage plates are arranged in the guide pipe at equal intervals, the argon entering the guide pipe is guided to flow in a spiral shape by the drainage plates, a rubber sheet is arranged on each of the drainage plates, and the rubber sheet is driven by the argon flow to rub against the rough particle layer on the guide pipe to generate a damping effect, and a plurality of hollow fiber membranes are arranged in the guide pipe at equal intervals to perform final adsorption and filtration treatment on the moisture in the argon in the flow process.
[0017] Preferably, the pressure reduction buffer mechanism further comprises a diaphragm type pressure stabilizing tank, the middle lower part of one side of the filling box is provided with the diaphragm type pressure stabilizing tank, the middle part of the bottom end of the diaphragm type pressure stabilizing tank is connected with one end of the guide pipe, and the diaphragm type pressure stabilizing tank is controlled by a PID controller.
[0018] Preferably, the cold energy recovery mechanism comprises a temporary storage box, the middle upper part of one side of the filling box is provided with the temporary storage box, the bottom of the temporary storage box is connected with the middle part of the top end of the diaphragm type pressure stabilizing tank through a connecting pipe, and a plate heat exchanger is arranged on one side of the temporary storage box.
[0019] Preferably, the cold energy recovery mechanism further comprises a connecting pipe, the middle upper part of the inner side of the filling box is provided with the connecting pipe, the inside of the connecting pipe is communicated with the inside of the temporary storage box, a plurality of filling connection nozzles are arranged at equal intervals at the bottom of the connecting pipe, a supporting seat is arranged on the middle upper part of the inner side of the filling box, a bottom groove is arranged on the inner bottom of the filling box, and a closing door is arranged on the middle lower part of one side of the filling box.
[0020] Working principle: when filling argon, a rare gas, with different volume sizes of gas cylinders or different capacity filling requirements, first, the volume adjusting mechanism is started. When the volume of the front-end gas cylinder needs to be increased, the worker first controls the temperature regulator through the adjusting controller on the adjusting box. The temperature regulator heats the inside of the adjusting box at the same time. When the adjusting box is heated, the spiral memory alloy sheet between the outer ring seats is heated and expanded to produce deformation. The spiral memory alloy sheet expands at the same time, driving the bottom outer ring seat and the telescopic adjusting rod between the two outer ring seats to extend synchronously. The bottom outer ring seat moves at the same time, driving the adjusting part at the bottom of the volume tank to move down synchronously. The adjusting part moves down at the same time, and the dynamic sealing ring and metal bellows sealing sleeve made of polytetrafluoroethylene inside the adjusting part are used to double-seal the connection between the adjusted volume tank and the adjusting part, so as to complete the volume increasing adjustment of the front-end gas cylinder. Conversely, when the volume of the front-end gas cylinder needs to be reduced, the worker controls the temperature regulator through the adjusting controller on the adjusting box. The temperature regulator cools down the inside of the adjusting box at the same time. As the temperature inside the adjusting box gradually decreases, the spiral memory alloy sheet that was heated and expanded is cooled and retracted. The spiral memory alloy sheet retracts at the same time, driving the bottom outer ring seat and the adjusting part above it to move up synchronously. At the same time, the telescopic adjusting rod between the two outer ring seats also retracts synchronously. The adjusting part moves up after retraction, and the dynamic sealing ring and metal bellows sealing sleeve made of polytetrafluoroethylene inside the adjusting part are used to double-seal the connection between the adjusted volume tank and the adjusting part, so as to complete the volume reduction adjustment of the front-end gas cylinder. Before filling argon, high-pressure raw argon generated by the argon generating device is injected into the injection shunt pipeline through the connecting pipeline. Then the worker controls the electromagnetic valve one at the corresponding position of the injection shunt pipeline to open through the control device, so that the argon enters the front-end gas cylinder composed of the corresponding volume size volume tank and adjusting part through the injection shunt pipeline. When the argon is discharged, the electromagnetic valve one at the corresponding position of the injection shunt pipeline is closed, and the electromagnetic valve two at the corresponding position of the discharge manifold is opened. The argon enters the subsequent processing equipment through the discharge manifold, so as to complete the volume adjustment of the front-end gas cylinder.Then the gradient dehumidification mechanism is started, and the argon gas treated by the volume adjustment mechanism is discharged into the high-pressure linkage dryer through the connecting pipe. The high-pressure linkage dryer pre-cools the argon gas, thereby condensing the water vapor in the argon gas into liquid. At the same time, through its built-in spiral guide plate and cyclone separator, the centrifugal force generated by the rotation of the high-pressure gas is used to separate it into liquid condensed water. The separated condensed water is discharged through the drain pipe in the form of pulse backflushing, thereby completing the preliminary removal of moisture in the argon gas. Then, the argon gas treated by the high-pressure linkage dryer enters the mesh tube in the tank through the connecting pipe. The argon gas entering the mesh tube passes through its The grid on the upper part is dispersed into the interior of the tank, and then the argon gas entering the tank is removed again by the adsorption filling cotton to remove the residual moisture in the argon gas. The argon gas adsorbed by the adsorption filling cotton is discharged through the filter seat in the tank, and the fiber cotton carried in the argon gas is filtered and separated by the filter seat to complete the removal of moisture in the argon gas. The argon gas processed by the tank enters the guide pipe. When the argon gas after multiple treatments flows in the guide pipe, the residual moisture in the argon gas is adsorbed again by the hollow fiber membrane in the guide pipe, and the rough particle layer in the guide pipe is also removed. The setting increases the roughness of the inner wall of the guide pipe, so that the residual water vapor cannot adhere to the inner wall of the guide pipe to form a liquid film, thereby completing the final treatment of the moisture in the argon gas; at the same time, the pressure reduction buffer mechanism is started, and the argon gas treated by the gradient dehumidification mechanism is discharged into the guide pipe. When the argon gas enters the guide pipe, it passes through the staggered guide plates in the guide pipe to form a spiral flow channel inside, thereby achieving preliminary pressure reduction and buffering treatment of the argon gas. Then, while the argon gas flows in the guide pipe, it blows the rubber sheet on the guide plate. While the rubber sheet moves, it generates friction with the rough particle layer in the guide pipe. This produces a damping effect, thereby performing a secondary pressure reduction and buffering treatment on the argon gas. The argon gas after the secondary pressure reduction and buffering treatment is then discharged into the diaphragm pressure-stabilizing tank on the filling box through the connecting pipe. The diaphragm pressure-stabilizing tank is combined with the PID controller to reduce the pressure fluctuation of the argon gas entering the diaphragm pressure-stabilizing tank to a standard that can be filled normally. This multiple pressure reduction and buffering method can not only ensure the subsequent argon gas entering the gas cylinder at a stable speed during filling, but also avoid the occurrence of large pressure data deviations between multiple gas cylinders, and also avoid technical problems such as drift of argon gas purity caused by pressure fluctuations, thereby completing the multiple pressure reduction and buffering treatment before argon gas filling.After the cold energy recovery mechanism is started, the argon gas after multiple pressure reduction buffering treatment enters the temporary storage box through the connecting pipe, so that the high-pressure raw argon gas needs to pass through the expander for adiabatic expansion when entering the front-end gas cylinder, the gas does work outside the expander, thereby causing the internal energy to decrease, at this time, the temperature of the high-pressure raw argon gas also sharply decreases, a large amount of cold energy is generated, when the high-pressure raw argon gas enters the temporary storage box, the plate heat exchanger on the temporary storage box starts to work, the plate heat exchanger transmits cold energy to the high-pressure raw argon gas at the same time of starting, so that the high-pressure raw argon gas is cooled, and the cold energy discharged in the process can also be transported to the adjusting box through the conveying equipment for cooling use, this processing mode can not only reduce the energy consumption of the compressor, but also prevent the pipeline from frosting during the argon gas filling process, thereby affecting the subsequent filling precision, finally, the argon gas after the precooling treatment enters the filling box through the connecting pipe, the argon gas in the filling box enters the connecting pipe, at this time, the support seat in the filling box supports the filling cylinder, and the bottom groove seat at the bottom of the filling box assists in fixing the filling cylinder, then the staff connects the filling connecting mouth at the bottom of the connecting pipe with the gas inlet of the filling cylinder, so that the argon gas in the connecting pipe after multiple treatments is filled into the cylinder, so as to complete the cold energy recovery and filling treatment during the argon gas filling process.
[0021] The application provides a rare gas precise filling device.
[0022] 1、The application increases and sets the volume adjusting mechanism, in the front-end storage stage before the high-pressure raw argon gas is filled, the mechanism realizes flexible volume adjustment by setting multiple volume tanks with different volumes, cooperating with the spiral memory alloy sheet and the telescopic adjusting rod, on the one hand, it can adapt to different filling capacity requirements without frequent replacement of storage tanks, on the other hand, the adjusting part adopts double sealing of the dynamic sealing ring and the metal bellows sealing sleeve, which can effectively prevent argon gas leakage and ensure gas purity, at the same time, the on-off of the shunt pipeline is controlled by the electromagnetic valve, which not only is convenient to operate, but also can quickly switch different volume tanks, and can also improve the filling preparation efficiency and increase the filling amount of subsequent argon gas.
[0023] 2、The application increases and sets the gradient dehumidification mechanism, before the high-pressure raw argon gas is filled, the mechanism adopts double treatment of high-pressure dryer precooling separation and tank body adsorption, first, liquid water vapor is efficiently removed through the spiral guide plate and the cyclone separator to avoid pipeline water accumulation, second, the adsorbed cotton and the filter seat are used to further adsorb residual moisture and filter impurities to reduce water interference in subsequent filling, finally, the hollow fiber membrane is used to treat residual moisture, this multi-stage dehumidification method can not only deeply purify argon gas, but also prevent moisture from affecting the welding quality and reduce the fault risk of the equipment caused by frosting.
[0024] 3、The present application can stabilize the argon pressure, avoid flow fluctuation during filling, and ensure the consistency of multiple cylinder filling and reduce the welding defects caused by unstable pressure.
[0025] 4、The present application can precool the raw gas, reduce the compressor energy consumption, provide cooling support for the adjusting tank, realize energy recycling, prevent pipeline frost from affecting the filling accuracy, and ensure the stability of the filling process. BRIEF DESCRIPTION OF DRAWINGS
[0026] Figure 1 Figure 1 is a front side structure schematic diagram of the present application;
[0027] Figure 2 Figure 2 is a rear side structure schematic diagram of the present application;
[0028] Figure 3 Figure 3 is an adjusting tank internal structure cross-sectional schematic diagram of the present application;
[0029] Figure 4 Figure 4 is a volume tank local structure schematic diagram of the present application;
[0030] Figure 5 Figure 5 is a high-pressure linkage dryer local structure schematic diagram of the present application;
[0031] Figure 6 Figure 6 is a tank body internal structure cross-sectional schematic diagram of the present application;
[0032] Figure 7 Figure 7 is a guide pipeline internal structure cross-sectional schematic diagram of the present application;
[0033] Figure 8 Figure 8 is a filling tank internal structure cross-sectional schematic diagram of the present application.
[0034] 1, regulating box; 2, filling box; 3, closing door; 4, guide pipeline; 5, diaphragm type pressure stabilizing tank; 6, plate heat exchanger; 7, temporary storage box; 8, injection shunt pipeline; 9, electromagnetic valve one; 10, regulating controller; 11, tank body; 12, high-pressure linkage dryer; 13, liquid discharge pipe; 14, cyclone separator; 15, temperature regulator; 16, volume tank; 17, fixed plate; 18, discharge into the manifold pipeline; 19, adjusting part; 20, electromagnetic valve two; 21, outer ring seat; 22, spiral memory alloy sheet; 23, telescopic adjusting rod; 24, metal bellows seal sleeve; 25, mesh pipe; 26, adsorbing filling cotton; 27, filter seat; 28, drainage plate; 29, hollow fiber membrane sheet; 30, rubber sheet; 31, rough particle layer; 32, connecting pipe; 33, filling connection nozzle; 34, support seat; 35, bottom groove seat. DETAILED DESCRIPTION
[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the specification of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0036] Please refer to the drawings of the present application Figure 1 - the drawings of the present application Figure 2 The embodiment of the present application provides a rare gas precise filling device, which comprises a regulating box 1; a filling box 2 arranged on one side of the regulating box 1;
[0037] Please refer to the drawings of the present application Figure 3 - the drawings of the present application Figure 4 A volume adjusting mechanism is arranged in the interior of the regulating box 1, which is used for flexibly adjusting the filling capacity of argon gas according to the filling quantitative demand of different volume filling bottles;
[0038] The volume adjusting mechanism comprises a fixed plate 17, the inner side middle upper part of the regulating box 1 is fixedly connected with the fixed plate 17, a plurality of volume tanks 16 with different volume sizes are equidistantly arranged on the fixed plate 17, the bottom of each volume tank 16 is provided with an adjusting part 19, the inner wall middle upper part of the adjusting part 19 is provided with a dynamic sealing ring made of polytetrafluoroethylene, the outer wall top of the adjusting part 19 is provided with a metal bellows seal sleeve 24, the middle part of the top of the regulating box 1 is provided with an injection shunt pipeline 8, and the bottom of the injection shunt pipeline 8 is connected with the top middle part of the corresponding position volume tank 16, and the electromagnetic valve one 9 is arranged on each branch pipe of the lower part of the injection shunt pipeline 8.
[0039] When the volume adjusting mechanism is started, when the volume of the front-end gas cylinder needs to be increased, the staff first controls and starts the temperature regulator 15 through the adjusting controller 10 on the adjusting box 1, and the temperature regulator 15 heats the inside of the adjusting box 1 at the same time of starting. When the adjusting box 1 is heated, the spiral memory alloy sheet 22 between the outer ring seats 21 is expanded and deformed by heat, and the spiral memory alloy sheet 22 drives the bottom outer ring seat 21 and the telescopic adjusting rod 23 between the two outer ring seats 21 to move out synchronously at the same time of expansion. The bottom outer ring seat 21 drives the adjusting part 19 at the bottom of the volume tank 16 to move down synchronously at the same time of moving, and the adjusting part 19 carries out double sealing treatment on the connection between the adjusted volume tank 16 and the adjusting part 19 through the dynamic sealing ring and the metal bellows sealing sleeve 24 of the polytetrafluoroethylene material inside, so as to complete the volume increasing adjustment of the front-end gas cylinder.
[0040] The volume adjusting mechanism further comprises the outer ring seat 21, the middle part of the outer wall of each volume tank 16 and adjusting part 19 is provided with the outer ring seat 21, the left and right sides between each group of outer ring seats 21 are connected through the spiral memory alloy sheet 22, the front and rear sides between each group of outer ring seats 21 are connected through the telescopic adjusting rod 23, the middle upper part of the rear side of the adjusting box 1 is provided with the temperature regulator 15, the middle upper part of the front side of the adjusting box 1 is provided with the adjusting controller 10, the inside bottom of the adjusting box 1 is provided with the exhaust manifold 18, each branch pipe on the upper part of the exhaust manifold 18 is connected with the bottom of the corresponding adjusting part 19, and the electromagnetic valve two 20 is arranged on each branch pipe of the exhaust manifold 18.
[0041] On the contrary, when the volume of the front-end gas cylinder needs to be reduced and decreased, the staff controls and starts the temperature regulator 15 through the adjusting controller 10 on the adjusting box 1, and the temperature regulator 15 cools the inside of the adjusting box 1 at the same time of starting. With the gradual decrease of the temperature in the adjusting box 1, the spiral memory alloy sheet 22 which is originally expanded by heat is cooled and reset, the spiral memory alloy sheet 22 drives the bottom outer ring seat 21 and the adjusting part 19 thereon to move up synchronously at the same time of resetting, and the telescopic adjusting rod 23 between the two outer ring seats 21 is also contracted synchronously, and the adjusting part 19 after moving up carries out double sealing treatment on the connection between the adjusted volume tank 16 and the adjusting part 19 through the dynamic sealing ring and the metal bellows sealing sleeve 24 inside, so as to complete the volume decreasing adjustment of the front-end gas cylinder.
[0042] Before filling the argon, the high-pressure raw argon generated by the argon generating device is injected into the injection shunt pipeline 8 through the connecting pipeline, and then the staff controls the electromagnetic valve one 9 at the position corresponding to the required volume size of the injection shunt pipeline 8 to be opened, so that the argon enters the front-end gas cylinder composed of the corresponding volume size volume tank 16 and the adjusting part 19 through the injection shunt pipeline 8, and when the argon is discharged, the electromagnetic valve one 9 at the corresponding position of the injection shunt pipeline 8 is closed, and then the electromagnetic valve two 20 at the corresponding position of the discharge bus pipeline 18 is opened, and the argon enters the subsequent processing device through the discharge bus pipeline 18, so as to complete the volume size adjustment processing of the front-end gas cylinder.
[0043] Please refer to the accompanying drawings Figure 5 - the accompanying drawings Figure 7 , a gradient dehumidification mechanism is arranged at the rear side of the adjusting box 1, which is used for sequentially and multiple dehumidification processing of the argon gas after the volume adjustment mechanism volume adjustment;
[0044] The gradient dehumidification mechanism includes a high-pressure linkage dryer 12, and the high-pressure linkage dryer 12 is arranged at the middle of the rear side of the adjusting box 1, which is used for compressing the argon pressure before filling to a pressure and condensing the water vapor contained in the argon into a liquid state, and the high-pressure linkage dryer 12 is provided with a cyclone separator 14 and a spiral guide plate matched with the cyclone separator 14, which separates the condensed water generated by the condensation of argon by using the centrifugal force generated by the rotation of high-pressure gas, and the bottom of one side of the high-pressure linkage dryer 12 is provided with a drain pipe 13 for removing and discharging the condensed water in a pulse backflushing manner, and the gas inlet end of the high-pressure linkage dryer 12 is communicated with the inside of the discharge bus pipeline 18 through a connecting pipeline.
[0045] When the gradient dehumidification mechanism is started, the argon after the processing of the volume adjustment mechanism is discharged into the high-pressure linkage dryer 12 through the connecting pipeline, the high-pressure linkage dryer 12 performs pre-cooling processing on the argon, so as to condense the water vapor in the argon into a liquid state, and at the same time, the spiral guide plate and the cyclone separator 14 inside the high-pressure linkage dryer 12 separate the condensed water into a liquid state by using the centrifugal force generated by the rotation of high-pressure gas, and the separated condensed water is discharged through the drain pipe 13 in a pulse backflushing manner, so as to complete the preliminary removal processing of the moisture in the argon.
[0046] The gradient dehumidification mechanism further includes a tank body 11, and the tank body 11 is arranged at the middle of the rear side of the high-pressure linkage dryer 12, the inside middle part of the tank body 11 is provided with a mesh pipe 25, one end of the mesh pipe 25 is connected with the exhaust end of the high-pressure linkage dryer 12 through a connecting pipeline, the inside of the tank body 11 is filled with adsorbing filling cotton 26, and a filter seat 27 is arranged on the side of the tank body 11 away from the high-pressure linkage dryer 12.
[0047] Then the argon treated by the high-pressure linkage dryer 12 enters into the mesh pipe 25 in the tank body 11 through the connecting pipe, and the argon entering into the mesh pipe 25 is dispersed into the inside of the tank body 11 through the mesh, and then the argon entering into the inside of the tank body 11 is treated by the adsorbing cotton 26 to remove the moisture in the argon again, and then the argon treated by the adsorbing cotton 26 is discharged through the filter seat 27 in the tank body 11, and the fiber carried by the argon is filtered and separated through the filter seat 27, so as to complete the moisture removal treatment of the argon again.
[0048] Then the argon treated by the tank body 11 enters into the guide pipe 4, and when the argon treated by the multiple treatments flows in the guide pipe 4, the moisture in the argon is adsorbed and treated again by the hollow fiber membrane 29 in the guide pipe 4, and at the same time, the rough particle layer 31 is arranged in the guide pipe 4 to increase the roughness of the inner wall of the guide pipe 4, so that the residual water vapor cannot be attached to the inner wall of the guide pipe 4 to form a liquid film, thereby completing the final treatment of the moisture in the argon.
[0049] Please refer to the accompanying Figure 2 and the accompanying Figure 7 , the pressure relief buffer mechanism is arranged at the rear side of the adjusting box 1, and is used for multiple buffering and pressure relief treatment of the argon gas treated by the gradient dehumidification mechanism;
[0050] The pressure relief buffer mechanism includes the guide pipe 4, the rear end of the tank body 11 is provided with the guide pipe 4, and the middle part of the rear end of the tank body 11 is connected with one end of the guide pipe 4, the rough particle layer 31 is arranged on the inner wall of the guide pipe 4, a plurality of guide plates 28 are arranged equidistantly in the guide pipe 4, the guide plates 28 guide the argon entering into the guide pipe 4 to flow in a spiral shape, the rubber sheet 30 is arranged on the guide plate 28, the rubber sheet 30 produces damping effect by rubbing with the rough particle layer 31 on the guide pipe 4 when being driven by the flow of the argon, and a plurality of hollow fiber membranes 29 are arranged equidistantly in the guide pipe 4 and are used for the last adsorption and filtration treatment of the moisture in the argon during the flow.
[0051] When the pressure relief buffer mechanism is started, the argon treated by the gradient dehumidification mechanism is discharged into the guide pipe 4, and when the argon entering into the guide pipe 4 flows, the guide plates 28 arranged equidistantly in the guide pipe 4 form a spiral flow channel in the guide pipe 4, so as to achieve the preliminary pressure relief and buffering treatment of the argon, and then the rubber sheet 30 on the guide plate 28 is blown by the argon flowing in the guide pipe 4, the rubber sheet 30 produces damping effect by rubbing with the rough particle layer 31 in the guide pipe 4 when moving, so as to achieve the secondary pressure relief and buffering treatment of the argon.
[0052] The pressure reducing buffer mechanism further comprises a diaphragm pressure stabilizer 5, which is arranged in the lower middle part of one side of the filling box 2, and the bottom middle part of the diaphragm pressure stabilizer 5 is connected with one end of the guide pipeline 4, and the diaphragm pressure stabilizer 5 is controlled by the PID controller.
[0053] After the secondary pressure reduction and buffering, the argon gas is discharged into the diaphragm pressure stabilizer 5 on the filling box 2 through the connecting pipe, and the pressure fluctuation of the argon gas entering the diaphragm pressure stabilizer 5 is reduced to the normal filling standard through the cooperation of the diaphragm pressure stabilizer 5 and the PID controller. This multiple pressure reduction and buffering mode not only ensures the stable speed of the subsequent argon gas filling into the gas cylinder, but also avoids the problem of large pressure data deviation between multiple gas cylinders, and also avoids the technical problem of argon gas purity drift caused by pressure fluctuation, so as to complete the multiple pressure reduction and buffering treatment of the argon gas before filling.
[0054] Please refer to the accompanying Figure 1 and the accompanying Figure 8 , the cold energy recovery mechanism is arranged on the filling box 2, which is used for recovering the cold energy generated in the argon gas treated by the pressure reducing buffer mechanism, and filling the argon gas after treatment.
[0055] The cold energy recovery mechanism comprises a temporary storage box 7, which is arranged in the upper middle part of one side of the filling box 2, and the bottom of the temporary storage box 7 is connected with the top middle part of the diaphragm pressure stabilizer 5 through the connecting pipe, and the plate heat exchanger 6 is arranged on one side of the temporary storage box 7.
[0056] The cold energy recovery mechanism is started, and the argon gas treated by multiple pressure reduction and buffering enters the temporary storage box 7 through the connecting pipe, so that the high-pressure raw argon gas needs to be adiabatic expanded by the expander when entering the front-end gas cylinder. The gas does work outside the expander, so that the internal energy of the gas is reduced, and at this time, the temperature of the high-pressure raw argon gas is also sharply reduced, and a large amount of cold energy is generated. When the high-pressure raw argon gas enters the temporary storage box 7, the plate heat exchanger 6 on the temporary storage box 7 is started, and the plate heat exchanger 6 transmits the cold energy to the high-pressure raw argon gas at the same time, so that the high-pressure raw argon gas is cooled, and the cold energy discharged in the process can be transported to the adjusting box 1 for cooling use by the conveying equipment. This treatment mode can not only reduce the energy consumption of the compressor, but also prevent the pipeline from frosting during the filling process of the argon gas, so as to affect the subsequent filling precision. Finally, the argon gas treated by precooling enters the filling box 2 through the connecting pipe.
[0057] The cold energy recovery mechanism further comprises a connecting pipe 32, the inner middle upper portion of the filling box 2 is provided with the connecting pipe 32, the connecting pipe 32 is communicated with the inside of the temporary storage box 7 through a connecting pipe, the bottom of the connecting pipe 32 is provided with a plurality of filling connecting nozzles 33 at equal intervals, the inner middle upper portion of the filling box 2 is provided with a supporting seat 34, the inner bottom of the filling box 2 is provided with a bottom groove 35, and the middle lower portion of one side of the filling box 2 is provided with a closing door 3.
[0058] The argon entering into the filling box 2 is discharged into the connecting pipe 32, at this time, the filling cylinder is supported by the supporting seat 34 in the filling box 2 and is fixed by the bottom groove 35 at the bottom of the filling box 2, then the worker connects the filling connecting nozzle 33 at the bottom of the connecting pipe 32 with the gas inlet of the filling cylinder, so that the argon in the connecting pipe 32 after multiple treatments is filled into the cylinder, thereby completing the cold energy recovery and filling treatment in the argon filling process.
[0059] After the filling of the cylinder in the filling box 2 is completed, the worker can take out the filled cylinder by opening the closing door 3 on the filling box 2, and replace the new cylinder, thereby facilitating the subsequent filling treatment.
[0060] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A rare gas precision filling device, characterized in that: include Regulating box (1); A filling box (2) is arranged on one side of the regulating box (1); A volume adjustment mechanism is provided inside the adjustment box (1) and is used to flexibly adjust the filling capacity of the argon gas according to the filling quantitative requirements of filling bottles of different volumes; A gradient dehumidification mechanism is provided at the rear side of the regulating box (1) and is used to perform multiple dehumidification processes on the argon gas after volume adjustment by the volume adjustment mechanism; A pressure reduction buffer mechanism, which is arranged at the rear side of the regulating box (1) and is used to perform multiple buffer pressure reduction processes on the argon gas after being processed by the gradient dehumidification mechanism; The cold recovery mechanism is arranged on the filling box (2) and is used to recover the cold generated in the argon gas after being processed by the pressure reduction buffer mechanism, and to perform filling processing on the argon gas after the processing.
2. A rare gas precision filling device according to claim 1, characterized in that: The volume adjustment mechanism includes a fixed plate (17), the fixed plate (17) is fixedly connected to the middle and upper part of the inner side of the adjustment box (1), a plurality of volume tanks (16) of different volumes are equidistantly arranged on the fixed plate (17), the bottom of each volume tank (16) is provided with an adjustment portion (19), the middle and upper part of the inner wall of the adjustment portion (19) is provided with a dynamic sealing ring made of polytetrafluoroethylene, the top of the outer wall of the adjustment portion (19) is provided with a metal bellows sealing sleeve (24), the top middle part of the top of the adjustment box (1) is provided with an injection diversion pipe (8), and the bottom of the injection diversion pipe (8) is respectively connected to the middle part of the top of the volume tank (16) at the corresponding position, and each branch pipe at the lower part of the injection diversion pipe (8) is provided with a solenoid valve (9).
3. A rare gas precision filling device according to claim 2, characterized in that: The volume adjustment mechanism also includes an outer ring seat (21), each of the volume tanks (16) and the adjustment part (19) is provided with an outer ring seat (21) in the middle of the outer wall, the left and right sides of each group of the outer ring seats (21) are connected by a spiral memory alloy sheet (22), and the front and rear sides of each group of the outer ring seats (21) are connected by a telescopic adjustment rod (23), a temperature regulator (15) is provided at the upper middle part of the rear side of the adjustment box (1), a regulation controller (10) is provided at the upper middle part of the front side of the adjustment box (1), a discharge conduit (18) is provided at the bottom of the inner side of the adjustment box (1), each branch pipe at the upper part of the discharge conduit (18) is respectively connected to the bottom of the corresponding adjustment part (19), and each branch pipe of the discharge conduit (18) is provided with a solenoid valve 2 (20).
4. The rare gas precision filling device according to claim 1, characterized in that: The gradient dehumidification mechanism includes a high-pressure linkage dryer (12). The high-pressure linkage dryer (12) is provided at the middle of the rear side of the regulating box (1). The high-pressure linkage dryer (12) is used to compress the argon pressure before filling into pressure and condense the water vapor contained in the argon into liquid. The high-pressure linkage dryer (12) is provided with a cyclone separator (14) and a spiral guide plate used in conjunction with the cyclone separator (14). The condensed water generated by the condensation of the argon gas is separated by the centrifugal force of the high-pressure gas rotation. A drain pipe (13) is provided at the bottom of one side of the high-pressure linkage dryer (12). The condensed water is removed and discharged by pulse backblowing at regular intervals. The air inlet end of the high-pressure linkage dryer (12) is connected to the inside of the discharge conduit (18) through a connecting pipe.
5. The rare gas precision filling device according to claim 4, characterized in that: The gradient dehumidification mechanism further comprises a tank body (11), the tank body (11) being arranged in the middle of the rear side of the high-pressure linkage dryer (12), a mesh tube (25) being arranged in the middle of the inner side of the tank body (11), one end of the mesh tube (25) being connected to the exhaust end of the high-pressure linkage dryer (12) via a connecting pipe, the interior of the tank body (11) being filled with adsorption filling cotton (26), and a filter seat (27) being arranged on the side of the interior of the tank body (11) away from the high-pressure linkage dryer (12).
6. A rare gas precision filling device according to claim 5, characterized in that: The pressure reduction buffer mechanism comprises a guide pipe (4), the rear end of the tank body (11) is provided with the guide pipe (4), and the middle of the rear end of the tank body (11) is connected to one end of the guide pipe (4), a rough particle layer (31) is provided on the inner wall of the guide pipe (4), and a plurality of guide plates (28) are equidistantly arranged inside the guide pipe (4), and the guide plates (28) guide the argon gas entering the guide pipe (4) to flow in a spiral shape. The guide plates (28) are all provided with rubber sheets (30), and when driven by the flow of argon gas, the rubber sheets (30) rub against the rough particle layer (31) on the guide pipe (4) to produce a damping effect. A plurality of hollow fiber membranes (29) are equidistantly arranged inside the guide pipe (4) for performing final adsorption and filtration treatment on moisture in the argon gas during the flow process.
7. A rare gas precision filling device according to claim 6, characterized in that: The pressure-reducing buffer mechanism further comprises a diaphragm-type pressure-stabilizing tank (5), which is provided at the middle and lower part of one side of the filling box (2), and the middle part of the bottom end of the diaphragm-type pressure-stabilizing tank (5) is connected to one end of the guide pipe (4), and the diaphragm-type pressure-stabilizing tank (5) is controlled by a PID controller.
8. The rare gas precision filling device according to claim 1, characterized in that: The cold recovery mechanism includes a temporary storage box (7), which is provided at the upper middle portion of one side of the filling box (2), the bottom of the temporary storage box (7) is connected to the middle portion of the top end of the diaphragm type pressure stabilizing tank (5) through a connecting pipe, and a plate heat exchanger (6) is provided on one side of the temporary storage box (7).
9. The rare gas precision filling device according to claim 8, characterized in that: The cold recovery mechanism also includes a connecting pipe (32), a connecting pipe (32) is provided at the middle and upper part of the inner side of the filling box (2), the connecting pipe (32) is connected to the interior of the temporary storage box (7) through a connecting pipe, a plurality of filling connection nozzles (33) are equidistantly provided at the bottom of the connecting pipe (32), a support seat (34) is provided at the middle and upper part of the inner side of the filling box (2), a bottom groove seat (35) is provided at the inner bottom of the filling box (2), and a closed door (3) is provided at the middle and lower part of one side of the filling box (2).