High-capacity gas storage tank for airborne oxygen system

Abstract

The utility model discloses a high-capacity gas storage tank for an airborne oxygen system, which comprises a tank body, an upper end cover, a lower end cover, a safety valve component and a filter, an oxygen outlet component and an oxygen partial pressure acquisition joint are mounted on the upper end cover, and an oxygen inlet is arranged on the lower end cover. The tank body is formed by connecting two vertical wide side plates and two vertical narrow side plates at intervals, a plurality of vertical reinforcing rib plates are connected between the two wide side plates, transverse through holes are formed in the reinforcing rib plates, the safety valve assembly is installed on the upper end cover, the filter is installed at the position, corresponding to an oxygen inlet, in the inner side of the lower end cover, and the filter is installed on the lower end cover. And the oxygen outlet component is a one-way outlet component for discharging oxygen from bottom to top. According to the gas storage tank, the space utilization rate is remarkably increased, the oxygen storage volume is increased, the gas pressure stabilizing requirement of a rear-end product is met, the strength is improved by arranging the reinforcing rib plates in the tank body, the gas storage tank has the functions of oxygen filtering, automatic pressure relief and one-way oxygen output, and the application requirement is better met.

Description

Technical Field

[0001] This utility model relates to a partial device of an airborne oxygen system, and more particularly to a large-capacity gas storage tank for an airborne oxygen system. Background Technology

[0002] Airborne oxygen systems are oxygen supply systems specifically designed for aviation equipment such as aircraft. They generally include oxygen production equipment, oxygen regulation equipment, and breathing equipment. The oxygen concentrator is the core component of the oxygen production equipment. It uses compressed air from the aircraft engine or compressed air generated by its own compressor as a gas source and utilizes the oxygen production characteristics of molecular sieve pressure swing adsorption to provide breathing oxygen for the crew. It provides the crew with finished oxygen that meets their physiological needs within a cabin altitude range of 0km to 7.6km. Currently, most finished oxygen is stored in gas tanks to stabilize the flow rate and meet peak breathing flow requirements. Therefore, gas tanks are an essential and critical component of the oxygen concentrator.

[0003] Traditional gas storage tanks are designed in a round or spherical shape, primarily to safely and effectively withstand internal pressure. This design offers several advantages: it distributes the stress generated by the pressure to the greatest extent possible, avoiding dangerous stress concentrations and bending stresses; it achieves the required pressure resistance with minimal material, reducing costs; it maximizes structural reliability and safety; and it facilitates standardized manufacturing.

[0004] However, in airborne oxygen systems, because airborne products typically require a high degree of integration to minimize size and weight, the installation space reserved for the gas storage tank in some oxygen concentrators is limited. For example... Figure 1 In the oxygen concentrator 1 shown for an airborne oxygen system, after other components are installed, the space 2 left for the gas storage tank is an irregularly shaped space resembling a cuboid. Using traditional gas storage tanks, one or two can be installed. Regardless of the number, a significant amount of space remains unused for oxygen storage, resulting in a small oxygen storage volume for the concentrator. This fails to meet the pressure stabilization requirements of downstream products and wastes some unused space. Therefore, it is necessary to fully utilize the limited installation space to maximize the oxygen storage volume. Furthermore, traditional gas storage tanks lack safety valve components, one-way oxygen outlet components, and filters. The traditional structures of these components are difficult to match with small-volume gas storage tanks, resulting in functional defects and making it difficult to directly install traditional components. Utility Model Content

[0005] The purpose of this invention is to provide a large-capacity gas storage tank for airborne oxygen systems with high space utilization in order to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A large-capacity gas storage tank for an airborne oxygen system includes a tank body, an upper end cover, and a lower end cover. The upper end cover and the lower end cover are respectively installed at the upper and lower ends of the vertically penetrating tank body. An oxygen outlet assembly and an oxygen partial pressure sampling connector are installed on the upper end cover, and an oxygen inlet is provided on the lower end cover. The large-capacity gas storage tank for an airborne oxygen system also includes a safety valve assembly and a filter. The tank body is formed by two vertical wide side plates and two vertical narrow side plates connected at intervals. The lateral width of the wide side plates is greater than the lateral width of the narrow side plates. Multiple vertical reinforcing ribs are connected between the two wide side plates. The reinforcing ribs are provided with lateral through holes. The safety valve assembly is installed on the upper end cover. The filter is installed on the inner side of the lower end cover at a position corresponding to the oxygen inlet. The oxygen outlet assembly is a unidirectional outlet assembly that discharges gas from bottom to top.

[0008] Preferably, to ensure the safety valve assembly matches the tank body and achieves safe pressure relief, the safety valve assembly includes a safety valve body, a valve spring, a valve body, and a valve gasket. The lower end of the safety valve body, which has a vertical through-hole in the center, is mounted on the upper end cover and sealed. A pressure relief outlet is located on the upper end cover at a position corresponding to the lower end of the safety valve body. The upper circumferential outer wall of the safety valve body has external threads and is fitted with a nut. The upper end of the nut is open at the center. The valve body is placed inside the safety valve body and can... The valve is vertically movable. The vertical valve spring is placed inside the safety valve body, with its upper end contacting the upper inner wall of the nut and its lower end placed in the groove at the top of the valve body. The lower end of the valve body has a groove, and the valve pad is placed in the groove. The lower circumferential inner wall of the safety valve body protrudes towards its vertical center line and upward to form a valve seat. The valve pad is located above the valve seat and can seal the valve seat. The side wall of the safety valve body near the valve seat has a pressure relief through hole that runs through both the inside and outside.

[0009] Preferably, to make the nut locking more reliable, a locking nut is fitted on the upper part of the safety valve body below the nut.

[0010] Preferably, to ensure the oxygen outlet assembly has a bottom-up one-way outlet function to prevent external air from entering the tank when the oxygen pressure inside is very low, the oxygen outlet assembly includes a vertically penetrating oxygen outlet connector, a one-way valve body, a one-way valve cover, a one-way valve gasket, and a one-way valve compression spring. The lower end of the oxygen outlet connector is mounted on the upper end cover and sealed. An oxygen outlet is provided on the upper end cover at a position corresponding to the lower end of the oxygen outlet connector. A downward protrusion on the upper end cover at a position corresponding to the oxygen outlet forms an outlet seat, and the oxygen outlet vertically penetrates the outlet seat. The lower circumferential inner wall of the outlet seat protrudes towards its vertical center line and then upwards to form a one-way valve seat. The one-way valve... The upper part of the body is placed inside the oxygen outlet connector and can move vertically. The lower part of the one-way valve body is provided with a one-way valve cover placed inside the air outlet seat. The vertical one-way valve spring is placed inside the air outlet seat, with its upper end contacting the inner wall of the upper part of the air outlet seat and its lower end contacting the one-way valve cover. The one-way valve spring is fitted outside the middle part of the one-way valve body. The lower end of the one-way valve cover is provided with a groove and the one-way valve pad is placed in the groove. The one-way valve pad is located above the one-way valve seat and can seal the one-way valve seat. One-way oxygen outlet gaps are left between the outer peripheral edge of the one-way valve cover and the inner wall of the air outlet seat, and between the outer peripheral edge of the one-way valve pad and the inner wall of the air outlet seat.

[0011] Preferably, in order to filter the oxygen entering the tank, the filter includes a filter element and a filter element mounting base. The lower end of the filter element is mounted on the lower end cover through the filter element mounting base, and the air inlet at the lower end of the filter element is connected to the oxygen inlet.

[0012] Preferably, in order to improve the overall strength of the product, the reinforcing rib is integrally formed with the wide side plate.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention uses a rectangular parallelepiped-shaped tank as the gas storage tank, allowing it to be tightly integrated into the confined space of the small-volume oxygen concentrator in the airborne oxygen system. Compared to traditional round or spherical gas storage tanks, this significantly improves space utilization and increases oxygen storage volume, meeting the pressure stabilization requirements of downstream products. Furthermore, reinforcing ribs inside the tank enhance its strength, ensuring its pressure resistance meets usage requirements. By integrating a safety valve assembly and filter with a specific structure onto the gas storage tank and employing a one-way exhaust assembly, the gas storage tank achieves oxygen filtration, automatic pressure relief, and one-way oxygen exhaust functions, better meeting application needs. Attached Figure Description

[0015] Figure 1 This is a partial top view of an oxygen concentrator used in an airborne oxygen system.

[0016] Figure 2 This is a top-view three-dimensional structural diagram of the large-capacity gas storage tank for the airborne oxygen system described in this utility model;

[0017] Figure 3 This is a bottom-view three-dimensional structural diagram of the large-capacity gas storage tank for the airborne oxygen system described in this utility model after removing the lower end cover.

[0018] Figure 4 This is a top view of the large-capacity gas storage tank for an airborne oxygen system as described in this utility model;

[0019] Figure 5 yes Figure 4 Enlarged AA section view in the image;

[0020] Figure 6 yes Figure 4 Enlarged cross-sectional view of BB in the image;

[0021] Figure 7 This is a bottom view of the structure of the large-capacity gas storage tank for the airborne oxygen system described in this utility model after removing the lower end cover.

[0022] Figure 8 yes Figure 7 CC section view in the image. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings:

[0024] like Figures 2-8 As shown, the large-capacity gas storage tank for an airborne oxygen system of this utility model includes a tank body 4, an upper end cover 3, a lower end cover 8, a safety valve assembly 5, and a filter. The upper end cover 3 and the lower end cover 8 are respectively installed at the upper and lower ends of the vertically penetrating tank body 4. An oxygen outlet assembly 7 and an oxygen partial pressure collection connector 6 are installed on the upper end cover 3. An oxygen inlet (not marked in the figure) is provided on the lower end cover 8. The tank body 4 is formed by two vertical wide side plates 41 and two vertical narrow side plates 42 connected at intervals. The lateral width of the wide side plates 41 is greater than the lateral width of the narrow side plates 42. Multiple vertical reinforcing ribs 10 are connected between the two wide side plates 41. The reinforcing ribs 10 are provided with lateral through holes 11. The safety valve assembly 5 is installed on the upper end cover 3. The filter is installed on the inner side of the lower end cover 8 at the position corresponding to the oxygen inlet. The oxygen outlet assembly 7 is a one-way outlet assembly that outlets gas from bottom to top.

[0025] like Figures 2-8 As shown, this utility model also discloses the following more optimized specific structures:

[0026] To ensure the safety valve assembly 5 matches the tank 4 and achieves safe pressure relief, the safety valve assembly 5 includes a safety valve body 53, a valve spring 54, a valve body 56, and a valve gasket 55. The lower end of the safety valve body 53, which has a vertical through-hole 57, is mounted on the upper end cover 3 and sealed. The upper end cover 3 has a pressure relief outlet at a position corresponding to the lower end of the safety valve body 53. The upper circumferential outer wall of the safety valve body 53 has external threads and is fitted with a nut 51. The upper end of the nut 51 is open at the middle. The valve body 56 is placed inside the safety valve body 53 and can... The valve can move vertically. The vertical valve spring 54 is placed inside the safety valve body 53, with its upper end in contact with the upper inner wall of the nut 51 and its lower end placed in the groove at the top of the valve body 56. The lower end of the valve body 56 is provided with a groove and the valve pad 55 is placed in the groove. The lower circumferential inner wall of the safety valve body 53 protrudes towards its vertical center line and protrudes upward to form a valve seat 58. The valve pad 55 is located above the valve seat 58 and can seal the valve seat 58. The side wall of the safety valve body 53 is provided with a pressure relief hole 59 that runs through the inside and outside near the valve seat 58.

[0027] To make the nut locking more reliable, a locking nut 52 is fitted on the upper part of the safety valve body 53 below the nut 51.

[0028] To ensure the oxygen outlet assembly 7 has a bottom-up one-way air outlet function and prevent external air from entering the tank 4 when the oxygen pressure inside the tank 4 is very low, the oxygen outlet assembly 7 includes a vertically penetrating oxygen outlet connector 71, a one-way valve body 74, a one-way valve cover 76, a one-way valve gasket 78, and a one-way valve compression spring 75. The lower end of the oxygen outlet connector 71 is mounted on the upper end cover 3 and sealed. An oxygen outlet 77 is provided on the upper end cover 3 at a position corresponding to the lower end of the oxygen outlet connector 71. A downward protrusion on the upper end cover 3 at a position corresponding to the oxygen outlet 77 forms an outlet seat 79, and the oxygen outlet 77 vertically penetrates the outlet seat 79. The lower circumferential inner wall of the outlet seat 79 protrudes towards its vertical center line and then upwards to form a one-way valve seat 72. The upper part of the one-way valve body 74... The one-way valve body 74 is located inside the oxygen outlet connector 71 and can move vertically. The lower part of the one-way valve body 74 is provided with a one-way valve cover 76 located inside the air outlet seat 79. The vertical one-way valve spring 75 is located inside the air outlet seat 79, with its upper end contacting the inner wall of the upper part of the air outlet seat 79 and its lower end contacting the one-way valve cover 76. The one-way valve spring 75 is fitted outside the middle part of the one-way valve body 74. The lower end of the one-way valve cover 76 is provided with a groove and the one-way valve pad 78 is placed in the groove. The one-way valve pad 78 is located above the one-way valve seat 72 and can seal the one-way valve seat 72. One-way oxygen outlet gaps are left between the outer peripheral edge of the one-way valve cover 76 and the inner wall of the air outlet seat 79, and between the outer peripheral edge of the one-way valve pad 78 and the inner wall of the air outlet seat 79, respectively. The upper part of the oxygen outlet connector 71 is the oxygen outlet 73.

[0029] In order to filter the oxygen entering the tank 4, the filter includes a filter element 12 and a filter element mounting base 13. The lower end of the filter element 12 is mounted on the lower end cover 8 through the filter element mounting base 13, and the air inlet 14 at the lower end of the filter element 12 is connected to the oxygen inlet.

[0030] To improve the overall strength of the product, the reinforcing rib plate 10 and the wide side plate 41 are integrally formed.

[0031] Figure 3 and Figure 7 The document also shows a sealing gasket 9 located at the lower end of the tank 4 for sealing connection with the lower end cover 8, and a sealing ring 15 located at the outer and inner circumferential edges of the lower end of the filter element mounting base 13 for sealing connection with the lower end cover 8; both are conventional adaptive structures.

[0032] like Figures 1-8 As shown, in use, the large-capacity gas storage tank of this utility model is installed on the bottom plate of the oxygen concentrator of the airborne oxygen system, closely cooperating with other components of the oxygen concentrator to make full use of the rectangular space of the oxygen concentrator; the prepared oxygen enters the filter element 12 through the air inlet 14 at the lower end of the filter element 12 from the oxygen inlet on the lower end cover 8, and after filtration, it enters the tank 4 from multiple directions; when the oxygen pressure in the tank 4 is high, it is output to the oxygen-using equipment through the valve of the oxygen outlet assembly 7; when the oxygen pressure in the tank 4 is low and not greater than the external air pressure, the valve of the oxygen outlet assembly 7 is closed, and external air cannot enter the tank 4; when the oxygen pressure in the tank 4 is too high, the valve of the safety valve assembly 5 is opened, and part of the oxygen in the tank 4 flows out of the tank 4 to achieve the purpose of depressurization; the oxygen partial pressure acquisition connector 6 is used to connect to the oxygen monitor (not shown in the figure) to monitor the oxygen partial pressure value in real time through the oxygen monitor.

[0033] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the technical solutions of this utility model. Any technical solution that can be implemented based on the above embodiments without creative effort should be considered to fall within the scope of protection of this utility model patent.

Claims

1. A large-capacity gas storage tank for an airborne oxygen system, comprising a tank body, an upper end cover and a lower end cover, the upper end cover and the lower end cover being respectively installed at the upper end and the lower end of the tank body in the vertical direction, an oxygen outlet assembly and an oxygen partial pressure collection joint being installed on the upper end cover, and an oxygen inlet being provided on the lower end cover, characterized in that: The large-capacity gas storage tank for the airborne oxygen system also includes a safety valve assembly and a filter. The tank body is formed by two vertical wide side plates and two vertical narrow side plates connected at intervals. The lateral width of the wide side plates is greater than that of the narrow side plates. Multiple vertical reinforcing ribs are connected between the two wide side plates. The reinforcing ribs are provided with lateral through holes. The safety valve assembly is installed on the upper end cover. The filter is installed on the inner side of the lower end cover at the position corresponding to the oxygen inlet. The oxygen outlet assembly is a one-way outlet assembly that discharges gas from bottom to top.

2. The large capacity gas storage tank for an onboard oxygen system of claim 1, wherein: The safety valve assembly includes a safety valve body, a valve spring, a valve body, and a valve gasket. The lower end of the safety valve body, which has a vertical through-hole in the center, is mounted on the upper end cover and sealed. The upper end cover has a pressure relief outlet at a position corresponding to the lower end of the safety valve body. The upper circumferential outer wall of the safety valve body has external threads and is fitted with a nut. The upper end of the nut is open at the center. The valve body is placed inside the safety valve body and can move vertically. The vertical valve spring is placed inside the safety valve body, with its upper end contacting the upper inner wall of the nut and its lower end placed in a recess in the upper part of the valve body. The lower end of the valve body has a groove and the valve gasket is placed in the groove. The lower circumferential inner wall of the safety valve body protrudes towards its vertical center line and upwards to form a valve seat. The valve gasket is located above the valve seat and can seal the valve seat. The side wall of the safety valve body has a through-hole with internal and external connections near the valve seat.

3. The large capacity gas storage tank for an onboard oxygen system of claim 2, wherein: A locking nut is fitted onto the upper part of the safety valve body, located below the nut.

4. The large capacity gas storage tank for an onboard oxygen system of any of claims 1-3, wherein: The oxygen outlet assembly includes a vertically penetrating oxygen outlet connector, a one-way valve body, a one-way valve cover, a one-way valve gasket, and a one-way valve compression spring. The lower end of the oxygen outlet connector is mounted on the upper cover and sealed. An oxygen outlet is provided on the upper cover at a position corresponding to the lower end of the oxygen outlet connector. A downward protrusion on the upper cover at a position corresponding to the oxygen outlet forms an outlet seat, and the oxygen outlet vertically penetrates the outlet seat. The lower circumferential inner wall of the outlet seat protrudes towards its vertical center line and then upwards to form a one-way valve seat. The upper part of the one-way valve body is placed inside the oxygen outlet connector and can move vertically. The lower part of the valve body is provided with a one-way valve cover placed inside the air outlet seat. The vertical one-way valve spring is placed inside the air outlet seat, with its upper end contacting the inner wall of the upper part of the air outlet seat and its lower end contacting the one-way valve cover. The one-way valve spring is fitted outside the middle part of the one-way valve body. The lower end of the one-way valve cover is provided with a groove and the one-way valve pad is placed in the groove. The one-way valve pad is located above the one-way valve seat and can seal the one-way valve seat. One-way oxygen outlet gaps are left between the outer peripheral edge of the one-way valve cover and the inner wall of the air outlet seat, and between the outer peripheral edge of the one-way valve pad and the inner wall of the air outlet seat.

5. The large capacity gas storage tank for an onboard oxygen system of any of claims 1-3, wherein: The filter comprises a filter core and a filter core mounting seat, the lower end of the filter core is mounted on the lower end cover through the filter core mounting seat, and an air inlet at the lower end of the filter core is communicated with the oxygen inlet.

6. The large capacity gas storage tank for an onboard oxygen system of any of claims 1-3, wherein: The reinforcing rib plate is integrally formed with the wide side plate.

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