A portable rapid oxygen and nitrogen filling device

Abstract

The present invention discloses a portable rapid oxygenation and nitrogen filling equipment, which specifically relates to the field of gas storage technology, including a storage box, a storage system is arranged inside the storage box, the storage system includes a gas cylinder, a gas cylinder valve is arranged on the top of the gas cylinder, the gas cylinder valve is connected to the inflation system and the gas supply system, a partition cover is arranged inside the storage box, a ventilation gap is formed between the bottom of the partition cover and the outer wall of the gas cylinder, a ventilation window is arranged in the area of ​​the top of the partition cover corresponding to the top of the gas cylinder, a first drying component is arranged in the ventilation window, and a second drying component is arranged in the ventilation gap. The present invention provides effective protective coverage for the top area of ​​the gas cylinder through the partition cover, while ensuring that the air in the top area of ​​the gas cylinder can exchange heat, the moisture can be effectively separated, and during the gas supply process of the equipment, freezing will not form near the gas cylinder valve, which effectively improves the safety of the equipment and increases the overall service life of the equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of gas storage, and more particularly to a portable rapid oxygen-filling nitrogen device. Background Art

[0002] Oxygen and nitrogen are the most commonly used gases in daily life. Generally speaking, oxygen and nitrogen have important applications in various fields such as industry, medical treatment, and scientific research. Oxygen is mainly used to support combustion, medical treatment, welding, etc., while nitrogen, as an inert gas, plays an important role in preventing oxidation, protecting the atmosphere, and preserving freshness. Among them, for some usage scenarios, in order to improve the use effect and safety protection, oxygen and nitrogen are also mixed for use. For example, in some welding and cutting processes, mixed gases are used to optimize the temperature and stability of the flame. In some medical scenarios, in order to prevent oxygen-rich environments and avoid pure oxygen environments that are very likely to cause fires and explosions, nitrogen is also mixed to reduce the concentration of oxygen for use.

[0003] Among them, in order to facilitate the storage and use of oxygen and nitrogen, they are needed to use gas cylinders and corresponding gas filling and discharging components. After the production of oxygen and nitrogen is completed, they are injected into high-pressure gas cylinders to liquefy them, thereby increasing the storage capacity. When the output is actually used, the gas cylinders are discharged and converted into gas for use.

[0004] In some complex outdoor and mountainous environments, such as outdoor construction and mountain rescue, oxygen or nitrogen needs to be provided in a timely manner. In order to facilitate movement, the air pipe needs to be combined with the inflation and air supply components to form an integrated storage device, and its volume needs to be reduced. Combined with a frame structure that is easy to transport, it is convenient to transport and deliver oxygen and nitrogen.

[0005] As drone transportation technology matures, in order to increase the transportation speed of the above-mentioned gases, the existing integrated storage equipment can be used in conjunction with drones, which can be hoisted and transported quickly at high altitudes to cross road obstacles and transport them along the shortest transportation route.

[0006] For oxygen or nitrogen storage equipment used indoors and in ordinary ground environments, there are no special portability requirements, and the use environment is relatively good. The humidity around the equipment is low and it will not be affected by environmental factors during normal use. In addition, since the gas cylinders storing gas will have high temperature changes during the inflation and deflation process, the surrounding air is required for temperature conduction. Therefore, it is necessary to ensure that there is enough air around the gas cylinders (especially near the gas cylinder valves) and to ensure that the air can flow, thereby providing a good temperature conduction medium for the filling and output of the gas.

[0007] However, the environmental factors used in the transportation of portable storage devices by drones are more complicated, especially in mountainous areas with high humidity and in foggy days. In order to ensure the stability of drone transportation, the storage devices cannot be effectively protected as on the ground. Therefore, when the drone lifts and lowers the portable storage devices, it will pass through high humidity areas, which will cause water vapor to adhere to the inside of the equipment, especially the outside of the gas cylinder. The humidity at the gas cylinder and the gas cylinder valve is relatively high, and the air temperature at high altitudes is lower than that on the ground. During the drone transportation, the overall temperature of the storage device is low, and when the storage device is transported to the designated location, When the gas is in use, during the process of gas being output from the gas cylinder (when high-pressure gas is released from the gas cylinder, the gas absorbs heat during the expansion process, causing the temperature to drop), the temperature of the gas cylinder valve and the outside of the gas cylinder will drop sharply, causing the external moisture of the valve part and the pipe part connected to the valve to condense and freeze. In severe cases, the valve will freeze and cannot be closed, causing oxygen and nitrogen leakage, causing certain dangers. Moreover, under long-term use, the materials related to the gas cylinder are repeatedly frozen, which is also prone to material damage, especially the rubber materials used for sealing, which not only reduces the service life of the equipment, but also brings certain safety hazards due to the high pressure inside the gas cylinder. Summary of the invention

[0008] The portable rapid oxygen-filling nitrogen equipment provided by the present invention aims to solve the problem that, after the existing equipment passes through a high-humidity space, there is more moisture near the gas cylinder, and the temperature of the gas cylinder valve and the outside of the gas cylinder is reduced, which makes it easy to form freezing, affecting the safety of the equipment, reducing the service life of the equipment, and bringing certain safety hazards.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a portable fast oxygen-filled nitrogen device, comprising a storage box, a storage system is arranged inside the storage box, the storage system comprises a gas cylinder, the gas cylinder is installed inside the storage box through a gas cylinder rack, a gas cylinder valve is arranged on the top of the gas cylinder, the gas cylinder valve is connected to a gas charging system and a gas supply system, the gas charging system is used to charge the gas cylinder with standby gas, and the gas supply system is used to output the gas in the gas cylinder for gas supply;

[0010] A partition cover is arranged inside the storage box, and the partition cover surrounds the area on the top of the gas cylinder. The joint pipeline part of the gas cylinder valve is located inside the partition cover, and a ventilation gap is formed between the bottom of the partition cover and the outer wall of the gas cylinder. A ventilation window is arranged at the top of the partition cover corresponding to the top of the gas cylinder, a first drying component is arranged in the ventilation window, and a second drying component is arranged in the ventilation gap.

[0011] In a preferred embodiment, the inflation system includes an inflation interface, an inflation switch valve, an inflation filter and an inflation check valve. The inflation interface, the inflation switch valve, the inflation filter, the inflation check valve and the gas cylinder valve are connected in sequence through an air pipe, and an inflation pressure gauge is provided on the air pipe between the inflation switch valve and the inflation filter.

[0012] In a preferred embodiment, the gas supply system includes a gas supply interface, a gas supply switch valve, a gas supply filter, a gas supply check valve and a pressure reducing valve. The gas supply interface, the gas supply check valve, the pressure reducing valve, the gas supply switch valve and the gas cylinder valve are connected in sequence through pipelines. A gas supply pressure gauge is provided on the gas pipe between the gas supply filter and the gas supply interface, and a gas supply safety valve is connected to the gas pipe between the gas supply check valve and the gas supply filter.

[0013] In a preferred embodiment, the first drying component includes a ventilation shell, which is fixedly mounted on the partition cover, a dryer is installed inside the ventilation shell, and the dryer is formed by wrapping a drying material with an air-permeable structure, a fixed air-permeable plate is fixedly mounted inside the ventilation shell, an extrusion air-permeable plate is also slidably mounted in the ventilation shell, the dryer is arranged between the extrusion air-permeable plate and the fixed air-permeable plate, and an elastic structure is arranged between the extrusion air-permeable plate and the ventilation shell, and the elastic structure is used to provide an extrusion force on the extrusion air-permeable plate to squeeze the dryer.

[0014] In a preferred embodiment, the second drying component includes an inner shell and an outer shell, a gas cylinder sleeve is fixedly installed at a position on the outside of the gas cylinder corresponding to the ventilation gap, the inner shell is an annular structure, the inner shell is fixedly installed on the outside of the gas cylinder, the outer shell is an annular structure concentrically arranged with the inner shell, the outer shell is fixedly installed on the inner wall of the partition cover, the top and bottom between the inner shell and the outer shell are connected by a bulging flexible breathable structure, the bulging flexible breathable structure forms a group of annular hollow cavities with the inner shell and the bulging flexible breathable structure, the annular hollow cavity is filled with drying material, the bulging flexible breathable structure is bulged after being filled with drying material, and the drying material is a regenerative adsorption desiccant.

[0015] In a preferred embodiment, a heating structure is fixedly installed at the bottom of the outer port of the ventilation shell, and an airflow guide cover is fixedly installed at the top of the outer port of the ventilation shell. The heating structure is used to heat the air outside the ventilation shell, and the airflow guide cover is used to guide the rising airflow outside the ventilation shell to the inside of the ventilation shell.

[0016] In a preferred embodiment, an exhaust structure is provided at the bottom of the partition cover, the exhaust structure includes a swivel, and multiple groups of turbine blades are fixedly connected to the inside of the swivel. A rotation drive structure is provided on the storage box, and the rotation drive structure is used to drive the swivel to rotate at the bottom of the partition cover.

[0017] In a preferred embodiment, the heating structure is an electric heating structure, the rotating drive structure is a drive motor, the output end of the drive motor is coordinated with the rotating ring transmission through a gear structure, and a battery structure is arranged in the storage box, which is used to power the heating structure and the drive motor.

[0018] In a preferred embodiment, a shock-absorbing base is provided in the storage box at a position corresponding to the bottom of the gas cylinder, the shock-absorbing base includes an elastic seat, the elastic seat is vertically slidably arranged in the storage box, the elastic seat is in contact with the bottom of the gas cylinder, an elastic rubber structure is provided between the ventilation gap and the gas cylinder, and a lifting regulator is provided at the bottom of the storage box at a position corresponding to the elastic seat, and the lifting regulator is used to adjust the height of the elastic seat.

[0019] In a preferred embodiment, the storage system in the storage box is configured as two groups, the two groups of gas cylinders are used to store oxygen and nitrogen respectively, casters are provided at the bottom of the storage box, handrails are provided on the side walls of the storage box, rotating rings are installed on both sides of the storage box, a pipe clamp structure for clamping and fixing the rotating rings is also provided on the storage box, and an electrostatic disk is also installed on the storage box.

[0020] The beneficial effects of the present invention are as follows: the present invention enables the top area of ​​the gas cylinder and the joint pipeline part of the gas cylinder valve to be effectively protected and covered through the partition cover, while ensuring that the air in the top area of ​​the gas cylinder can flow and exchange heat, the moisture can be effectively separated through the first drying component and the second drying component, ensuring that during the transportation of the storage box, the moisture in the humid air will not enter the partition cover, thereby ensuring the dryness of the air inside the partition cover, and further during the gas supply process of the equipment, even if the gas cylinder valve is cooled by liquid vaporization caused by gas output, no freezing will form near the gas cylinder valve, thereby effectively improving the safety of the equipment, reducing the risk of leakage in key parts, and increasing the overall service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the composition of the inflation system and the air supply system of the present invention.

[0023] Figure 3 It is the front view of the present invention.

[0024] Figure 4 It is a left view of the present invention.

[0025] Figure 5 The figure is a schematic diagram of installing the gas cylinder of the present invention in a storage box.

[0026] Figure 6 The present invention is based on Figure 5A-section structure enlarged view.

[0027] Figure 7 This is a diagram showing the distribution state of the first drying component around the top of the gas cylinder of the present invention.

[0028] Figure 8 This is a schematic diagram of the structure of the present invention after the first drying component and the second drying component are improved and an exhaust structure is added.

[0029] Fig. 9 The present invention is based on Figure 8 Schematic diagram of the overall structure of the improved first drying component in section B.

[0030] Fig.10 The present invention is based on Fig. 9 Schematic diagram of the structure of the first drying component after adding a heating structure.

[0031] Fig.11 The present invention is based on Figure 8 Schematic diagram of the overall structure of the improved second drying component in section C.

[0032] Fig.12 The present invention is based on Figure 8 The middle D portion is a schematic diagram of the pulling state of the bulging flexible breathable structure in the improved second drying component when the outer part of the gas cylinder shrinks during use.

[0033] Fig.13 It is a schematic diagram of the overall structure of the exhaust structure of the present invention.

[0034] Fig.14 This is a schematic diagram of the exhaust structure using a crank to drive the exhaust structure of the present invention.

[0035] The accompanying drawings are marked as follows: 1. Storage box; 11. Casters; 12. Rotating lifting ring; 13. Electrostatic disk; 2. Storage system; 21. Gas cylinder; 22. Gas cylinder valve; 23. Inflation system; 231. Inflation interface; 232. Inflation switch valve; 233. Inflation filter; 234. Inflation check valve; 235. Inflation pressure gauge; 24. Gas supply system; 241. Gas supply interface; 242. Gas supply switch valve; 243. Gas supply filter; 244. Gas supply check valve; 245. Gas supply pressure gauge; 246. Pressure reducing valve; 247. Gas supply safety valve; 3. Gas cylinder rack; 4. Shock-absorbing base; 41. elastic seat; 42. lifting regulator; 5. partition cover; 51. ventilation gap; 52. ventilation window; 53. gas cylinder cover; 6. first drying component; 61. ventilation shell; 62. dryer; 63. fixed air-permeable plate; 64. extruded air-permeable plate; 65. heating structure; 66. air flow guide cover; 7. second drying component; 71. inner shell; 72. outer shell; 73. bulging flexible air-permeable structure; 8. exhaust structure; 81. swivel; 82. turbine blade; 83. rotation drive structure; 831. drive motor; 832. crank assembly. DETAILED DESCRIPTION

[0036] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0037] Refer to the instruction manual Figures 1 to 13 A portable fast oxygen-filling nitrogen device includes a storage box 1, a storage system 2 is arranged inside the storage box 1, the storage system 2 includes a gas cylinder 21, the gas cylinder 21 is installed inside the storage box 1 through a gas cylinder rack 3, a gas cylinder valve 22 is arranged on the top of the gas cylinder 21, the gas cylinder valve 22 is connected to a charging system 23 and a gas supply system 24, the charging system 23 is used to charge the gas cylinder 21 with standby gas, and when the equipment arrives at the designated place, the gas supply system 24 supplies gas to the standby device.

[0038] The inflation system 23 includes an inflation interface 231, an inflation switch valve 232, an inflation filter 233 and an inflation check valve 234. The inflation interface 231, the inflation switch valve 232, the inflation filter 233, the inflation check valve 234 and the cylinder valve 22 are connected in sequence through an air pipe. An inflation pressure gauge 235 is provided on the air pipe between the inflation switch valve 232 and the inflation filter 233. The air supply system 24 includes an air supply interface 241, an air supply switch valve 242, an air supply filter 243, an air supply check valve 244 and a pressure reducing valve 246, the air supply interface 241, the air supply check valve 244, the pressure reducing valve 246, the air supply switch valve 242 and the gas cylinder valve 22 are connected in sequence through pipelines, the gas cylinder valve 22 is used to control the connection between the gas cylinder 21 and the inflation system 23, the gas supply system 24 and to control the sealing of the gas cylinder 21, wherein a gas supply pressure gauge 245 is provided on the air pipe between the air supply filter 243 and the air supply interface 241, and a gas supply safety valve 247 is connected to the air pipe between the air supply check valve 244 and the air supply filter 243.

[0039] In the above-mentioned embodiment, the device provided by the present invention can utilize the gas cylinder 21 to store gas at a certain pressure, and can decompress the gas through the internal pressure reducing valve 246 (ie, the pressure control valve) and then output the gas.

[0040] When the storage box 1 is inflated, the inflating interface 231 is connected to the gas inflating device, and the gas enters the gas cylinder 21 through the inflating interface 231, the inflating switch valve 232, the inflating filter 233, the inflating check valve 234, and the gas cylinder valve 22. The pressure in the gas cylinder can be observed through the inflating pressure gauge 235, and the gas supply switch valve 242 is in a closed state at this time.

[0041] When supplying gas to the outside, connect the gas supply interface 241 to the standby device, and the gas in the gas cylinder 21 enters the pressure reducing valve 246 through the gas supply switch valve 242 and is then output after being reduced in pressure. The reduced-pressure gas first flows through the gas supply check valve 244, the gas supply filter 243 and the gas supply interface 241 to be output to the outside. Among them, the pressure reducing valve 246 can adjust the gas output pressure, the gas supply safety valve 247 can limit the maximum output pressure to play a protective role, the gas supply pressure gauge 245 can monitor the pressure of the output gas in real time, and the gas supply check valve 244 can realize the one-way flow of gas to avoid gas backflow.

[0042] It should be noted that in the technical solution provided by the present invention, the storage system 2 in the storage box 1 is set as two groups, that is, there are two groups of gas cylinders 21 in the storage box 1, and the two groups of gas cylinders 21 are used to store oxygen and nitrogen respectively. The inflation system 23 and the gas supply system 24 used by the two gas cylinders 21 and the layout of various types of pipes are the same. A control panel is provided on the top of the storage box 1, and the control valves and pressure gauges in the two groups of storage systems 2 are all centrally arranged in the control panel for easy viewing and operation. Two inflation interfaces 231 and a gas supply interface 241 are arranged on the side of the storage box 1 for easy connection with other equipment.

[0043] For further information, please refer to the attached manual. Figure 1 , Figure 3 and Figure 4 In order to facilitate the movement of the equipment, casters 11 are provided at the bottom of the storage box 1, handrails are provided on the side walls of the storage box 1, rotating rings 12 are installed on both sides of the storage box 1, and the storage box 1 is also provided with a pipe clamp structure for clamping and fixing the rotating ring 12 to prevent the rotating ring 12 from shaking when not in use. An electrostatic disk 13 (electrostatic grounding reel / 5 meters / automatic) is also installed on the storage box 1.

[0044] By adopting the above technical solution, the device can be easy to carry. The gas filling system 23 and the gas supply system 24 are integrated in the gas device. In actual use, it can be directly connected to the corresponding interface. The inflation of the gas cylinder 21 is faster and more convenient, and it is also more convenient for the device to supply gas to the standby device.

[0045] In the above embodiment, in order to reduce the influence of moisture in the humid air in the outdoor environment on the gas cylinder 21 and the structure near the gas cylinder valve 22, this embodiment also provides the following technical solutions. For details, refer to the attached manual. Figures 5 to 7A partition cover 5 is provided inside the storage box 1. The partition cover 5 surrounds the area on the top of the gas cylinder 21 and forms a protective cover for the top area of ​​the gas cylinder 21 with the top wall of the storage box 1. The control handle of the gas cylinder valve 22 extends upward out of the storage box 1. The joint pipeline part of the gas cylinder valve 22 is located in the partition cover 5. A ventilation gap 51 is formed between the bottom of the partition cover 5 and the outer wall of the gas cylinder 21. A ventilation window 52 is provided in the top of the partition cover 5 corresponding to the joint pipeline part of the gas cylinder valve 22 at the top of the gas cylinder 21. A first drying component 6 is provided in the ventilation window 52, ​​and a second drying component 7 is provided in the ventilation gap 51, so that the top area of ​​the gas cylinder 21 and the joint pipeline part of the gas cylinder valve 22 can be effectively protected and covered, while ensuring that the air in the top area of ​​the gas cylinder 21 can flow and exchange heat, it can also prevent the entry of external moisture. , so that the moisture can be effectively separated by the first drying component 6 and the second drying component 7, ensuring that the moisture in the humid air will not enter the partition cover 5 during the transportation of the storage box 1, ensuring the dryness of the air inside the partition cover 5, and then in the process of gas supply of the equipment, even if the temperature drops due to the vaporization of liquid formed by the gas output at the gas cylinder valve 22, no freezing will form near the gas cylinder valve 22 (in the process of inflation and gas supply, the main area of ​​gas-liquid conversion is the gas cylinder valve 22 at the top of the gas cylinder 21 and the connected joint pipeline part, therefore, the temperature change is mainly concentrated in this part, and the sealing structure in the joint pipeline of the gas cylinder valve 22 at this part is particularly important, so this embodiment mainly protects this area effectively), effectively improving the safety of equipment use, reducing the risk of leakage in key parts, and increasing the overall service life of the equipment.

[0046] It should be noted that the setting of the partition hood 5 is mainly to form a protective area outside the gas cylinder 21, and will not prevent the air flow around the gas cylinder 21. For example, when the gas cylinder 21 is filled with high-pressure gas, the gas is liquefied, and the temperature is increased outside the top of the gas cylinder 21. The air in the partition hood 5 expands and can be discharged through the first drying component 6 and the second drying component 7. During the gas supply process of the equipment, the top of the gas cylinder 21 is cooled, and the air in the partition hood 5 shrinks. The internal air shrinks, and the external air flow can flow into the partition hood 5. Especially during the gas supply process, when the top area of ​​the gas cylinder 21 is cooled, due to the setting of the ventilation gap 51, the air with increased density after cooling actively sinks and flows out through the second drying component 7. At the same time, the upper air passes through the first drying component 6 and enters the partition hood 5 for replenishment, forming internal and external convection, which is beneficial to heat exchange at the top of the gas cylinder 21 and avoiding the gas cylinder valve 22 from having a too low temperature.

[0047] In the above embodiment, the first drying component 6 includes a ventilation shell 61, which is fixedly mounted on the partition cover 5. A dryer 62 is installed inside the ventilation shell 61. The dryer 62 can select a drying bag structure formed by wrapping a desiccant or other drying materials with an air-permeable structure. The second drying component 7 can also directly adopt the same drying bag structure as the dryer 62. The desiccant is preferably a reusable drying material. When the equipment is inflated, the temperature of the gas cylinder 21 rises, and the internal air expands, the moisture originally absorbed by the desiccant evaporates and is driven away from the desiccant by the escaping air, so that it can be reused.

[0048] It should be noted that the above is only one of the drying schemes provided by the present invention. In addition, other types of drying structures or equipment may also be used.

[0049] In the above embodiment, since the temperature change of the gas cylinder 21 during use will also affect the partition cover 5, it is easy to cause the desiccant wrapped in the drying bag structure to become loose, affecting the drying effect, especially the ventilation gap 51. When the gas cylinder 21 supplies gas, the temperature of the gas cylinder 21 itself decreases, forming a certain contraction, and the distance between the outer wall of the gas cylinder 21 and the inner wall of the partition cover 5 increases. The originally compact desiccant becomes loose, affecting the drying effect. For this reason, the first drying component 6 and the second drying component 7 are further improved in this embodiment. For details, refer to the attached specification. Figures 8 to 12 A fixed air-permeable plate 63 is fixedly installed inside the ventilation shell 61, and an extrusion air-permeable plate 64 is also slidably installed in the ventilation shell 61. The dryer 62 is arranged between the extrusion air-permeable plate 64 and the fixed air-permeable plate 63. An elastic structure, such as a spring, is arranged between the extrusion air-permeable plate 64 and the ventilation shell 61. The elastic structure is used to provide an extrusion force to the extrusion air-permeable plate 64 to press the dryer 62, thereby ensuring that the desiccant in the dryer 62 is always in a compressed state, and the filtering effect of moisture is better.

[0050] For further information, please refer to the attached manual. Fig.11The second drying assembly 7 includes an inner shell 71 and an outer shell 72. A cylinder sleeve 53 is fixedly installed at the position of the gas cylinder 21 corresponding to the ventilation gap 51. The cylinder sleeve 53 is in close contact with the gas cylinder 21 and is most directly affected by the temperature change of the gas cylinder 21. It can expand or contract with the gas cylinder 21. The inner shell 71 is an annular structure. The inner shell 71 is fixedly installed on the outside of the gas cylinder 21. The outer shell 72 is an annular structure concentrically arranged with the inner shell 71. The outer shell 72 is fixedly installed on the inner wall of the partition cover 5. The inner shell 71 and the outer shell 72 are fixedly installed on the inner wall of the partition cover 5. The top and bottom of the shell 72 are connected by a bulging flexible breathable structure 73. The bulging flexible breathable structure 73 can be a cloth structure or a metal sheet structure with fine mesh holes. The bulging flexible breathable structure 73, the inner shell 71 and the bulging flexible breathable structure 73 form a group of annular hollow cavities. The annular hollow cavities are filled with desiccant. After being filled with desiccant, the bulging flexible breathable structure 73 is bulged, that is, the bulging flexible breathable structure 73, the inner shell 71 and the outer shell 72 are arranged in a drum shape.

[0051] It should be noted that when the temperature of the gas cylinder 21 decreases and forms a contraction, the gas cylinder cover 53 contracts along with the gas cylinder 21, while the partition cover 5 is not in direct contact with the gas cylinder 21, so the contraction degree is small, and the distance between the gas cylinder cover 53 and the inner wall of the partition cover 5 increases. Fig.12 , which will cause the inner shell 71 and the outer shell 72 to pull the bulging flexible breathable structure 73 to a certain extent, causing the bulging flexible breathable structure 73 to squeeze the desiccant inside, thereby ensuring that the desiccant remains compact and the drying effect is good.

[0052] Further, in order to reduce the impact of thermal expansion and contraction on the stability of the installation of the gas cylinder 21, this embodiment also provides the following technical solutions. For details, refer to the attached manual. Figure 5 A shock-absorbing base 4 is provided at a position corresponding to the bottom of the gas cylinder 21 in the storage box 1, and the shock-absorbing base 4 includes an elastic seat 41. The elastic seat 41 is vertically slidably arranged in the storage box 1, and the elastic seat 41 is in contact with the bottom of the gas cylinder 21. An elastic rubber structure is arranged between the ventilation gap 51 and the gas cylinder 21. A lifting regulator 42 is provided at the position of the bottom of the storage box 1 corresponding to the elastic seat 41. The lifting regulator 42 is used to adjust the height of the elastic seat 41, thereby adjusting the squeezing force of the elastic seat 41 on the gas cylinder 21, wherein the lifting regulator 42 can adopt a threaded rod structure, the lifting regulator 42 is rotatably installed at the bottom of the elastic seat 41, and the lifting regulator 42 is threadedly installed in the bottom wall of the storage box 1.

[0053] In the above embodiment, although the first drying component 6 can fully dry the air entering the partition cover 5, the first drying component 6 itself will be exposed to moisture. If the external air humidity is high and the external air temperature of the actual use environment is relatively low, ice will form at the first drying component 6, which will affect the flow of air inside and outside the partition cover 5. For this reason, this embodiment also provides the following technical solutions. For details, refer to the attached manual. Fig.10 A heating structure 65 is fixedly installed at the bottom of the outer port of the ventilation shell 61, and an airflow guide cover 66 is fixedly installed at the top of the outer port of the ventilation shell 61. The heating structure 65 is used to heat the air outside the ventilation shell 61, and the airflow guide cover 66 is used to guide the rising airflow outside the ventilation shell 61 to the inside of the ventilation shell 61.

[0054] It should be noted that the heating structure 65 used in this embodiment is preferably an electric heating structure, which is turned on and used when the outside temperature is low. Therefore, a set of battery structures needs to be installed inside the storage box 1 to power the heating structure 65. If the device cannot carry a power supply device, other physical heating devices can also be used to fix the air permeable plate 63.

[0055] By adopting the above-mentioned embodiment, under the heating of the heating structure 65, the air outside the ventilation shell 61 can be heated to a certain extent, and thus ice will not be formed at the first drying component 6, and the air heated by the heating structure 65 will flow upward, and be guided into the ventilation shell 61 through the airflow guide cover 66, and the downward flow caused by the cooling of the air inside the partition cover 5 can accelerate the convection speed, thereby improving the heat exchange efficiency between the air inside the partition cover 5 and the gas cylinder 21. At the same time, the relative temperature of the air entering the gas cylinder 21 is relatively high, which increases the minimum temperature caused by the gas supply of the gas cylinder 21, and improves the protection effect of the gas cylinder valve 22 and other structures.

[0056] It should be noted that, in addition to isolating moisture, the partition cover 5 on the outside of the top of the storage box 1 can also protect the gas cylinder valve 22 from leakage. If oxygen leakage occurs at the gas cylinder valve 22, the leaked oxygen will first fill the space inside the partition cover 5 to reduce overflow, thereby reducing the occurrence of accidents. At the same time, the heating structure 65 is arranged on the outside of the partition cover 5, far away from the gas cylinder valve 22, and it is not easy to cause a fire when oxygen leaks. Compared with directly heating the gas cylinder valve 22, it is safer.

[0057] In the above embodiment, the air exchange in the partition cover 5 is mainly achieved by the convection of cold and hot air flows. In order to improve the above air exchange effect, this embodiment also provides the following technical solutions. For details, refer to the attached manual. Figure 8 , Fig.11 and Fig.13An exhaust structure 8 is provided at the bottom of the partition cover 5, and the exhaust structure 8 includes a swivel 81. A plurality of turbine blades 82 are fixedly connected to the interior of the swivel 81. A rotation driving structure 83 is provided on the storage box 1. The rotation driving structure 83 is used to drive the swivel 81 to rotate at the bottom of the partition cover 5. When the equipment is supplied with air, a downward airflow is formed at the ventilation gap 51 with the help of the turbine blades 82, thereby accelerating the exchange of airflow.

[0058] Furthermore, in the above embodiment, the rotation driving structure 83 can be selected as follows: Fig.11 The driving motor 831 shown in the figure needs to be provided with a battery inside the storage box 1 for power supply. The output end of the driving motor 831 is matched with the rotating ring 81 through a gear structure, that is, a ring gear structure is provided at the bottom of the rotating ring 81, and the rotating ring 81 is driven by the engagement of the pinion installed on the output end of the driving motor 831. In addition, a manual driving device can also be used, for example, referring to the attached manual of the manual. Fig.14 The rotation driving structure 83 is a crank assembly 832, and the crank assembly 832 is matched with the rotating ring 81 through a gear assembly. In actual use, the crank assembly 832 is manually rotated, and the gear assembly is engaged to drive the rotating ring 81 to rotate.

[0059] It should be noted that, in the above embodiment, two groups of gas cylinders 21 are provided, which are used to store oxygen and nitrogen respectively, wherein the nitrogen cylinder has a nominal volume of 20L and a working pressure of 35MPa, and the oxygen cylinder has a nominal volume of 20L and a working pressure of 35MPa.

[0060] The inner lining of oxygen cylinder 21 and nitrogen cylinder 21 are both made of 6061 aluminum alloy, and the outer part is compositely wound with carbon fiber T700-24K and high-strength glass fiber ER 550-1080. The oxygen cylinder valve 22 is a hard-sealed cylinder valve 22, which is suitable for gas pipeline systems with oxygen as the medium. The metal parts in contact with the medium are made of copper (HPb59-1) and monel; non-metallic materials are made of polytetrafluoroethylene and polyimide. The nitrogen cylinder valve 22 is a hard-sealed cylinder valve 22, the main body of which is made of 316L stainless steel, and the cylinder valve thread interface adopts the standard cylinder interface.

[0061] Among them, the oxygen supply group and the nitrogen supply group use a dedicated, oil-free pressure gauge for oxygen and a pressure gauge for nitrogen respectively. There are a total of 4 pressure gauges, which are respectively for oxygen and nitrogen inflation input, and oxygen and nitrogen supply output.

[0062] The two groups of pressure reducing valves 246 are respectively high-precision oxygen pressure reducing valves and nitrogen pressure reducing valves, which are used to control the system gas supply pressure. The valve body and other main parts of the oxygen pressure reducing valve 246 are made of copper and monel. The main parts of the nitrogen pressure reducing valve 246 are made of 316L stainless steel. The oxygen / nitrogen output pressure can be adjusted by setting the pressure reducing valve 246.

[0063] Among them, the main function of the gas supply safety valve 247 is to limit the maximum working pressure of the system. The pressure limit range is 10-42MPa (adjustable). The gas supply safety pressure can be adjusted to the required value according to actual needs. The safety valve of the oxygen pipeline adopts a high-pressure safety valve dedicated to oxygen. The safety valve is a soft sealing structure with reliable sealing and good opening and closing repeatability. The metal parts in contact with the medium are made of copper (HPb59-1); non-metallic materials are made of polytetrafluoroethylene and polyimide. The main parts of the safety valve of the nitrogen pipeline are made of 316L stainless steel.

[0064] The main function of the inflation check valve 234 and the gas supply check valve 244 is to realize the one-way flow of pipeline gas. The main parts of the check valve of the oxygen pipeline are made of monel, the non-metallic material is polyimide, and the spring is made of beryllium bronze. The main parts of the check valve of the nitrogen pipeline are made of 316L stainless steel.

[0065] The air filling filter 233 and the air supply check valve 244 can effectively remove impurities in the gas and prevent impurities from entering the pipeline. The filtration accuracy is 5μm. The valve body and other main parts of the oxygen filter are made of copper, and the filter element is a copper powder sintered structure. The main parts of the nitrogen filter are made of 316L stainless steel.

[0066] All connecting pipes and joints are made of corrosion-resistant alloy materials. Pipeline welding construction is strictly carried out in accordance with the standard of GB50236-2011. Pipelines, hoses and other materials in contact with oxygen are compatible with oxygen media, and the pipe diameter and wall thickness meet the strength requirements. The air supply and inflation hoses have good high pressure resistance, wear resistance, and have a certain ability to withstand repeated bending.

[0067] Equipment and pipelines that come into contact with oxygen must be strictly degreased, and each pipeline must be cleaned with a tetrachloroethylene solution to make sure there is no oil stain. After drying, assembly can be carried out.

[0068] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A portable rapid oxygenation and nitrogen filling device, characterized in that: The storage box (1) comprises a storage system (2) disposed inside the storage box (1), the storage system (2) comprising a gas cylinder (21), the gas cylinder (21) being mounted inside the storage box (1) via a gas cylinder rack (3), a gas cylinder valve (22) being disposed on the top of the gas cylinder (21), the gas cylinder valve (22) being connected to a gas charging system (23) and a gas supply system (24), the gas charging system (23) being used to charge the gas cylinder (21) with gas to be used, and the gas supply system (24) being used to output the gas in the gas cylinder (21) for gas supply; The storage box (1) is provided with a partition cover (5) inside, the partition cover (5) surrounds an area on the top of the gas cylinder (21), the joint pipeline part of the gas cylinder valve (22) is located inside the partition cover (5), a ventilation gap (51) is formed between the bottom of the partition cover (5) and the outer wall of the gas cylinder (21), a ventilation window (52) is provided at the top of the partition cover (5) corresponding to the top of the gas cylinder (21), a first drying component (6) is provided in the ventilation window (52), and a second drying component (7) is provided in the ventilation gap (51); The inflation system (23) comprises an inflation interface (231), an inflation switch valve (232), an inflation filter (233) and an inflation check valve (234); the inflation interface (231), the inflation switch valve (232), the inflation filter (233), the inflation check valve (234) and the gas cylinder valve (22) are connected in sequence via an air pipe; an inflation pressure gauge (235) is provided on the air pipe between the inflation switch valve (232) and the inflation filter (233); The gas supply system (24) comprises a gas supply interface (241), a gas supply switch valve (242), a gas supply filter (243), a gas supply check valve (244) and a pressure reducing valve (246); the gas supply interface (241), the gas supply check valve (244), the pressure reducing valve (246), the gas supply switch valve (242) and the gas cylinder valve (22) are connected in sequence via pipelines; a gas supply pressure gauge (245) is provided on the gas pipe between the gas supply filter (243) and the gas supply interface (241); and a gas supply safety valve (247) is connected to the gas pipe between the gas supply check valve (244) and the gas supply filter (243); The first drying component (6) comprises a ventilation shell (61), the ventilation shell (61) being fixedly mounted on the partition cover (5), a dryer (62) being mounted inside the ventilation shell (61), the dryer (62) being formed by a permeable structure wrapping a drying material, a fixed ventilation plate (63) being fixedly mounted inside the ventilation shell (61), an extrusion ventilation plate (64) being slidably mounted in the ventilation shell (61), the dryer (62) being arranged between the extrusion ventilation plate (64) and the fixed ventilation plate (63), and an elastic structure being arranged between the extrusion ventilation plate (64) and the ventilation shell (61), the elastic structure being used to provide an extrusion force to the extrusion ventilation plate (64) toward the dryer (62).

2. A portable rapid oxygenation and nitrogen filling device according to claim 1, characterized in that: The second drying component (7) comprises an inner shell (71) and an outer shell (72); a gas cylinder sleeve (53) is fixedly mounted at a position on the outside of the gas cylinder (21) corresponding to the ventilation gap (51); the inner shell (71) is an annular structure, and the inner shell (71) is fixedly mounted on the outside of the gas cylinder (21); the outer shell (72) is an annular structure arranged concentrically with the inner shell (71); the outer shell (72) is fixedly mounted on the inner wall of the partition cover (5); the top and bottom of the inner shell (71) and the outer shell (72) are connected by a bulging flexible air-permeable structure (73); the bulging flexible air-permeable structure (73) forms a group of annular hollow cavities with the inner shell (71) and the bulging flexible air-permeable structure (73); the annular hollow cavities are filled with drying material; the bulging flexible air-permeable structure (73) filled with the drying material is bulged; the drying material is a regenerative adsorption desiccant.

3. A portable rapid oxygenation and nitrogen filling device according to claim 2, characterized in that: A heating structure (65) is fixedly mounted on the bottom of the outer port of the ventilation shell (61), and an airflow guide cover (66) is fixedly mounted on the top of the outer port of the ventilation shell (61). The heating structure (65) is used to heat the air outside the ventilation shell (61), and the airflow guide cover (66) is used to guide the rising airflow outside the ventilation shell (61) to the inside of the ventilation shell (61).

4. A portable rapid oxygenation and nitrogen filling device according to claim 3, characterized in that: An exhaust structure (8) is provided at the bottom of the partition cover (5), the exhaust structure (8) comprising a rotating ring (81), a plurality of groups of turbine blades (82) being fixedly connected inside the rotating ring (81), and a rotation drive structure (83) is provided on the storage box (1), the rotation drive structure (83) being used to drive the rotating ring (81) to rotate at the bottom of the partition cover (5).

5. A portable rapid oxygenation and nitrogen filling device according to claim 4, characterized in that: The heating structure (65) is an electric heating structure, the rotation drive structure (83) is a drive motor (831), the output end of the drive motor (831) is in transmission cooperation with the rotating ring (81) via a gear structure, and a battery structure is provided in the storage box (1), the battery structure being used to supply power to the heating structure (65) and the drive motor (831).

6. A portable rapid oxygenation and nitrogen filling device according to any one of claims 1 to 5, characterized in that: A shock-absorbing base (4) is arranged in the storage box (1) at a position corresponding to the bottom of the gas cylinder (21), the shock-absorbing base (4) comprising an elastic seat (41), the elastic seat (41) being arranged in a vertical sliding manner in the storage box (1), the elastic seat (41) being in contact with the bottom of the gas cylinder (21), an elastic rubber structure being arranged between the ventilation gap (51) and the gas cylinder (21), and a lifting regulator (42) being arranged at a position corresponding to the elastic seat (41) at the bottom of the storage box (1), the lifting regulator (42) being used to adjust the height of the elastic seat (41).

7. A portable rapid oxygenation and nitrogen filling device according to claim 6, characterized in that: The storage system (2) in the storage box (1) is arranged in two groups, and the two groups of gas cylinders (21) are used to store oxygen and nitrogen respectively. Castors (11) are arranged at the bottom of the storage box (1), and handrails are arranged on the side walls of the storage box (1). Rotating lifting rings (12) are installed on both sides of the storage box (1). The storage box (1) is also provided with a pipe clamp structure for clamping and fixing the rotating lifting ring (12). The storage box (1) is also equipped with an electrostatic disk (13).

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