On-board oxygen exhaust device and oxygen exhaust system

Abstract

The invention provides an onboard oxygen exhaust device and an oxygen exhaust system, and belongs to the technical field of aviation, the onboard oxygen exhaust device comprises an instrument board support, an oxygen exhaust instrument board panel fixed on the instrument board support, an oxygen switch and an oxygen pressure gauge which are mounted on the oxygen exhaust instrument board panel, and a three-way pipe joint connected with a pressure reducer, the oxygen pressure gauge and the oxygen switch, the pressure reducer and the three-way pipe joint, the oxygen pressure gauge and the three-way pipe joint, and the oxygen switch and the three-way pipe joint are connected through conduits; the pressure reducer is further connected with the oxygen exhaust port through a guide pipe and used for exhausting redundant oxygen out of the cabin. And the oxygen switch is connected with the composite oxygen bottle assembly. The oxygen exhausting speed can be increased, the oxygen exhausting time is shortened, the oxygen exhausting efficiency is greatly improved, the structure is simple, and the reliability and the safety are high.

Description

Technical Field

[0001] The invention belongs to the field of aviation technology, and in particular relates to an onboard oxygen exhaust device and an oxygen exhaust system. Background Art

[0002] The oxygen exhaust system on a certain type of aircraft is carried out under good ventilation conditions by turning on the emergency switches of the oxygen regulators on the cockpit control panels and the working cabin display consoles. The oxygen exhaust speed is slow and the exhaust time is long. Moreover, because the oxygen needs to be discharged into the cabin, the cabin environment needs to be safe. Refueling and power-on work are not allowed. The oxygen exhaust conditions are harsh and there are certain safety hazards.

[0003] Therefore, it is necessary to provide an onboard oxygen exhaust device that can increase the oxygen exhaust speed, shorten the oxygen exhaust time, and eliminate safety hazards. Summary of the invention

[0004] In order to solve the technical problems in the prior art that the oxygen exhaust speed on board is slow, the time is long, and the oxygen exhaust conditions are harsh, which has certain safety hazards, the present invention provides an oxygen exhaust device on board that is ingenious in structure, reliable in fixation, and easy to use, which solves the previous problems of slow oxygen exhaust speed, long oxygen exhaust time, and safety hazards. The device has an ingenious structure, is safe and reliable, and is easy to use. The technical solution is as follows:

[0005] In a first aspect, an onboard oxygen exhaust device is provided, comprising: an instrument panel bracket, an oxygen exhaust instrument panel panel fixed on the instrument panel bracket, an oxygen switch and an oxygen pressure gauge installed on the oxygen exhaust instrument panel panel, a three-way pipe joint connected to a pressure reducer, an oxygen pressure gauge, and an oxygen switch, wherein the pressure reducer and the three-way pipe joint, the oxygen pressure gauge and the three-way pipe joint, and the oxygen switch and the three-way pipe joint are all connected through a conduit;

[0006] The pressure reducer is also connected to the oxygen exhaust port through a conduit to discharge excess oxygen out of the cabin; the oxygen switch is connected to the composite oxygen cylinder assembly;

[0007] When oxygen needs to be discharged, turn on the oxygen switch. The oxygen in the composite oxygen cylinder assembly passes through the oxygen switch and then enters the pressure reducer and oxygen pressure gauge through the three-way pipe joint. After being reduced in pressure by the pressure reducer, it enters the conduit and is discharged to the outside of the cabin from the oxygen discharge port. The oxygen pressure gauge displays the current oxygen discharge pressure to determine whether to turn off the oxygen switch. Specifically, if the current oxygen discharge pressure is lower than the preset value, determine to turn off the oxygen switch; if the current oxygen discharge pressure is not lower than the preset value, determine not to turn off the oxygen switch.

[0008] Furthermore, the onboard oxygen exhaust device also includes a switch bracket for fixing the oxygen switch, and the switch bracket is fixed on the oxygen exhaust instrument panel. The installation stability of the oxygen switch can be improved by the switch bracket.

[0009] Optionally, the oxygen exhaust instrument panel is secured to the instrument panel bracket by fasteners.

[0010] Optionally, the fasteners include washers and screws.

[0011] Furthermore, the oxygen switch, the pressure reducer, the three-way pipe joint, and the oxygen pressure gauge are all connected to the conduit through the outer sleeve nut.

[0012] Optionally, the switch bracket is a "J"-shaped structure, which can tightly fix the oxygen switch on the oxygen exhaust instrument panel and reduce the installation area of ​​the switch bracket.

[0013] Optionally, the oxygen exhaust port is provided with a flange ring, and the conduit at the oxygen exhaust port is fixedly connected to the fuselage skin through the flange ring, which can enhance the connection stability and air tightness of the conduit.

[0014] In a second aspect, an oxygen exhaust system is provided, comprising an onboard oxygen exhaust device as described in any one of the first aspects, and a composite oxygen cylinder assembly connected to the onboard oxygen exhaust device.

[0015] Among them, the composite oxygen cylinder assembly is connected to the oxygen switch

[0016] The beneficial effects of the present invention are at least:

[0017] 1. The oxygen exhaust efficiency of the onboard oxygen system has been improved, solving the previous problems of slow oxygen exhaust speed and long oxygen exhaust time.

[0018] 2. The oxygen discharge safety of the onboard oxygen system has been improved, solving the safety hazard problem of directly discharging oxygen into the cabin. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the installation of the rapid oxygen release device on the composite oxygen cylinder assembly;

[0020] Figure 2 This is a schematic diagram of the structure of the rapid oxygen release device on the composite oxygen cylinder assembly;

[0021] Figure 3 This is the outline drawing of the oxygen exhaust instrument panel;

[0022] Figure 4 This is the outline drawing of the oxygen exhaust instrument panel bracket;

[0023] Figure 5 This is the appearance diagram of the oxygen switch bracket;

[0024] Figure 6 This is the appearance diagram of the oxygen switch;

[0025] Figure 7 This is the appearance diagram of the oxygen pressure gauge. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below through specific implementation modes and drawings.

[0027] An embodiment of the present invention provides an onboard oxygen exhaust device, see Figure 1 and Figure 2 , the device comprises:

[0028] Dashboard bracket 9, see Figure 4 ,

[0029] The oxygen exhaust instrument panel panel 1 fixed on the instrument panel bracket 9 is shown in FIG. Figure 3 ,

[0030] The oxygen switch 5 (see Figure 6 ) and oxygen pressure gauge 7 (see Figure 7 ),

[0031] The three-way pipe joint 8 connected to the pressure reducer 10, the oxygen pressure gauge 7, and the oxygen switch 5, the pressure reducer 10 and the three-way pipe joint 8, the oxygen pressure gauge 7 and the three-way pipe joint 8, and the oxygen switch 5 and the three-way pipe joint 8 are all connected through a conduit 6.

[0032] The pressure reducer 10 is also connected to the oxygen discharge port through the conduit 6 to discharge excess oxygen out of the cabin, and the oxygen switch 5 is connected to the composite oxygen cylinder assembly;

[0033] The working principle of the present invention is as follows:

[0034] When oxygen discharge is required, the oxygen switch 5 is turned on. The oxygen in the composite oxygen cylinder assembly passes through the oxygen switch 5 and then enters the pressure reducer 10 and the oxygen pressure gauge 7 through the three-way pipe joint 8. After being reduced in pressure by the pressure reducer 10, it enters the conduit 6 and is discharged to the outside of the cabin from the oxygen discharge port. The oxygen pressure gauge 7 is used to display the current oxygen discharge pressure to determine whether to close the oxygen switch 5.

[0035] In one implementable manner, if the current exhaust oxygen pressure is lower than a preset value, it is determined to close the oxygen switch 5; if the current exhaust oxygen pressure is not lower than the preset value, it is determined not to close the oxygen switch 5.

[0036] Another embodiment of the present invention provides an onboard oxygen exhaust device, see Figure 1 and Figure 2 , the device may include:

[0037] Dashboard bracket 9,

[0038] The oxygen exhaust instrument panel 1 is fixed on the instrument panel bracket 9,

[0039] The oxygen switch 5 and the oxygen pressure gauge 7 installed on the oxygen exhaust instrument panel 1,

[0040] The switch bracket 4 for fixing the oxygen switch 5 is shown in FIG. Figure 5 ;

[0041] A three-way pipe joint 8 connected to the pressure reducer 10, the oxygen pressure gauge 7, and the oxygen switch 5; the pressure reducer 10 and the three-way pipe joint 8, the oxygen pressure gauge 7 and the three-way pipe joint 8, and the oxygen switch 5 and the three-way pipe joint 8 are all connected through a conduit 6;

[0042] The pressure reducer 10 is also connected to the oxygen discharge port through the conduit 6 to discharge excess oxygen out of the cabin, and the oxygen switch 5 is connected to the composite oxygen cylinder assembly;

[0043] The switch bracket 4 is fixed on the oxygen exhaust instrument panel 1 , and the installation stability of the oxygen switch 5 can be improved by the switch bracket 4 .

[0044] The oxygen exhaust instrument panel 1 is fixed to the instrument panel bracket 9 by fasteners.

[0045] In an implementable manner, the fastener may include a washer 2 and a screw 3 .

[0046] In one possible implementation, the oxygen switch 5 , the pressure reducer 10 , the three-way pipe joint 8 , and the oxygen pressure gauge 7 are all connected to the conduit 6 via a sheath nut.

[0047] In one possible implementation, the switch bracket 4 is a “J”-shaped structure, which can tightly fix the oxygen switch 5 on the oxygen exhaust instrument panel panel 1 and reduce the installation area of ​​the switch bracket 4 .

[0048] In one possible implementation, the oxygen exhaust port is provided with a flange ring, and the conduit at the oxygen exhaust port is fixedly connected to the fuselage skin via the flange ring, which can enhance the connection stability and air tightness of the conduit.

[0049] Another embodiment of the present invention further provides an oxygen exhaust system, including the onboard oxygen exhaust device provided in the embodiment of the present invention, and a composite oxygen cylinder assembly connected to the onboard oxygen exhaust device.

[0050] The composite oxygen cylinder assembly is connected to the oxygen switch 5 .

[0051] In summary, the present invention provides an onboard rapid oxygen release device for a composite oxygen cylinder assembly, including an instrument panel bracket, an oxygen exhaust instrument panel panel, an oxygen switch and an oxygen pressure gauge, a three-way pipe joint, a conduit, etc. The present invention has a simple structure, high reliability, greatly improves the oxygen exhaust efficiency, and has high safety.

[0052] The above only expresses the implementation mode of the present invention, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent. It should be pointed out that for ordinary technicians in this field, several modifications 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. In addition, the parts not detailed in the present invention are all conventional technologies.

Claims

1. An onboard oxygen exhaust device, characterized in that: include: an instrument panel bracket, an oxygen exhaust instrument panel panel fixed on the instrument panel bracket, an oxygen switch and an oxygen pressure gauge installed on the oxygen exhaust instrument panel, a three-way pipe joint connected to the pressure reducer, the oxygen pressure gauge, and the oxygen switch, the pressure reducer and the three-way pipe joint, the oxygen pressure gauge and the three-way pipe joint, and the oxygen switch and the three-way pipe joint are all connected through a conduit; The pressure reducer is also connected to the oxygen exhaust port through a conduit to discharge excess oxygen out of the cabin; the oxygen switch is connected to the composite oxygen cylinder assembly; When oxygen needs to be discharged, turn on the oxygen switch. The oxygen in the composite oxygen cylinder assembly passes through the oxygen switch and then enters the pressure reducer and oxygen pressure gauge through the three-way pipe joint. After being reduced in pressure by the pressure reducer, it enters the duct and is discharged outside the cabin from the oxygen discharge port. The oxygen pressure gauge displays the current oxygen discharge pressure to determine whether to turn off the oxygen switch.

2. The device according to claim 1, characterized in that The onboard oxygen exhaust device also includes a switch bracket for fixing an oxygen switch, and the switch bracket is fixed on the oxygen exhaust instrument panel.

3. The device according to claim 1, characterized in that The exhaust instrument panel is secured to the instrument panel bracket by fasteners.

4. The device according to claim 3, characterized in that Fasteners include washers and screws.

5. The device according to claim 1, characterized in that The oxygen switch, the pressure reducer, the three-way pipe joint and the oxygen pressure gauge are all connected to the conduit through the outer sleeve nut.

6. The device according to claim 2, characterized in that The switch bracket is a "J" shaped structure.

7. The device according to claim 1, characterized in that The oxygen exhaust port is provided with a flange ring, and the conduit at the oxygen exhaust port is fixedly connected to the fuselage skin through the flange ring.

8. An oxygen removal system, characterized in that: It comprises the onboard oxygen exhaust device as described in any one of claims 1 to 7, and a composite oxygen cylinder assembly connected to the onboard oxygen exhaust device.

9. The device according to claim 8, characterized in that The composite oxygen cylinder assembly is connected to the oxygen switch.

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