CN115430073A - Breathing oxygen supply device for sealed cabin - Google Patents
Breathing oxygen supply device for sealed cabin Download PDFInfo
- Publication number
- CN115430073A CN115430073A CN202211028912.0A CN202211028912A CN115430073A CN 115430073 A CN115430073 A CN 115430073A CN 202211028912 A CN202211028912 A CN 202211028912A CN 115430073 A CN115430073 A CN 115430073A
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- Prior art keywords
- oxygen supply
- oxygen
- fan
- breathing
- air outlet
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- 239000001301 oxygen Substances 0.000 title claims abstract description 82
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 82
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 26
- 230000001105 regulatory effect Effects 0.000 claims abstract description 15
- 238000013016 damping Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 2
- 239000011358 absorbing material Substances 0.000 claims 1
- 239000000463 material Substances 0.000 description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000241 respiratory effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B9/00—Component parts for respiratory or breathing apparatus
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- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
Abstract
The application provides a breathing oxygen supply device for a sealed cabin, wherein a horizontal positioning plate is arranged on the top of a supporting frame of the breathing oxygen supply device, a horizontal supporting plate is arranged on the lower part of the supporting frame, and the horizontal positioning plate is parallel to the horizontal supporting plate and is uniformly and horizontally arranged; the oxygen supply pipeline is arranged on the support frame, and an electromagnetic valve, a flow regulating valve and an oxygen flowmeter are arranged on the oxygen supply pipeline; the fan is arranged on the horizontal support plate and is provided with an air inlet and an air outlet, the air inlet is horizontally arranged at one side of the fan, and the air outlet is vertically arranged on the top of the fan and penetrates through the horizontal positioning plate; the air inlet of the oxygen supply pipeline is positioned below the air inlet, and the air outlet is adjacent to the air outlet and used for mixing the supplied oxygen with the air exhausted from the air outlet and conveying the mixed oxygen to each cabin in the sealed cabin. The device shortens the pipeline resistance consumption through reasonable layout, reduces equipment volume and windage, can effectively improve the utilization ratio in the nervous space in the sealed cabin.
Description
Technical Field
The application relates to the field of mechanical equipment, in particular to a breathing and oxygen supplying device for a sealed cabin.
Background
In a closed cabin, the breathing oxygen supply equipment plays a vital role in the life safety of personnel, the reliability, maintainability and vibration noise performance of the equipment are directly related to the breathing safety and the task period length in the closed cabin, meanwhile, the requirement of air supply of each cabin is required to be met, and the use requirement of oxygen in each cabin is ensured to be met.
Resources such as space, energy and the like in the sealed cabin are very tense, the equipment needs to be miniaturized and energy-saving, the equipment has good energy consumption and is very economic, excessive allowance cannot be reserved, and the design needs to be very accurate. The breathing oxygen supply equipment needs to realize the air supply of each cabin, the oxygen consumption of personnel in each cabin is not large, but the requirement of remote air supply is met, and the flow is small and the pressure is high, so the development difficulty of the breathing oxygen supply device is improved; moreover, the breathing oxygen supply equipment is long-time running equipment in a sealed cabin, and the control of noise transmission is related to the environmental comfort performance.
However, the oxygen supply equipment used in the existing cabin not only occupies a large area, but also has low safety.
Disclosure of Invention
One of the purposes of the application is to provide a breathing oxygen supply device for a sealed cabin, so as to solve the problem that the occupied area of the oxygen supply equipment used in the existing cabin is large.
The technical scheme of the application is as follows:
a breathing oxygen supply device for a sealed cabin comprises a supporting frame, an oxygen supply pipeline, an electromagnetic valve, a flow regulating valve, an oxygen pressure gauge, an oxygen flow meter and a fan; the top of the supporting frame is provided with a horizontal positioning plate, the lower part of the supporting frame is provided with a horizontal supporting plate, and the horizontal positioning plate is parallel to the horizontal supporting plate and is horizontally arranged; the oxygen supply pipeline is arranged on the support frame, and the electromagnetic valve, the flow regulating valve, the oxygen pressure gauge and the oxygen flow meter are arranged on the oxygen supply pipeline; the fan is arranged on the horizontal support plate and is provided with an air inlet and an air outlet, the air inlet is horizontally arranged at one side of the fan, and the air outlet is vertically arranged on the top of the fan and penetrates through the horizontal positioning plate; the air inlet of oxygen suppliment pipeline is in the below of air intake, and the gas outlet is close to the air outlet for with the oxygen that provides with the air that discharges in the air outlet mixes and carry to each cabin in the sealed cabin.
As a technical scheme of this application, the air intake level sets up, and with horizontal location board parallels.
As a technical scheme of this application, still include automatically controlled box, automatically controlled box respectively with the solenoid valve fan electricity is connected.
As a technical scheme of this application, cup jointed the shock attenuation hose on the air intake, cup jointed the shock attenuation hose on the air outlet.
As a technical scheme of this application, braced frame is square frame structure.
As a technical scheme of this application, the fan with each angle end department that braced frame contacted all pastes and has 1 mm's rubber pad.
As a technical scheme of this application, the spiral case inner chamber of fan is filled with porous sound absorption material.
The beneficial effect of this application:
in the sealed cabin of this application is with breathing apparatus of oxygen supply, it is through integrating, the modularized design, with oxygen control pipeline, automatically controlled box, flow control valve, manometer, flowmeter whole integration in a square braced frame, through rational arrangement, shorten the pipeline resistance consumption, reduce equipment volume and windage, effectively improve the utilization ratio in the tight space of sealed cabin. Meanwhile, the oxygen supply device can meet the requirements of breathing oxygen supply pipelines in the cabin, meet the pressure required by system operation and provide proper oxygen supply capacity. In addition, the vibration noise can be effectively reduced, and the requirement on the comfort of the cabin is met. In addition, the pipeline of the device has good sealing performance, and the use safety of pure oxygen can be ensured.
Drawings
In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic view of a respiratory ventilation apparatus for a sealed cabin according to an embodiment of the present disclosure;
fig. 2 is a first angle schematic view of a respiratory apparatus for sealing a cabin according to an embodiment of the present disclosure.
Icon: 1-a support frame; 2-an oxygen supply conduit; 3-an electromagnetic valve; 4-flow regulating valve; 5-an oxygen flow meter; 6, a fan; 7-horizontal positioning plate; 8-a horizontal support plate; 9-air inlet; 10-air outlet; 11-an electronic control box; 12-an air inlet; 13-oxygen pressure gauge.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, as generally described and illustrated in the figures herein, could be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like refer to orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are used for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application.
Further, in the present application, unless expressly stated or limited otherwise, the first feature may be directly contacting the second feature or may be directly contacting the second feature, or the first and second features may be contacted with each other through another feature therebetween, not directly contacting the second feature. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature being below, beneath or beneath a second feature includes the first feature being directly below and obliquely below the second feature or simply indicating that the first feature is at a lesser level than the second feature.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it should also be noted that, unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly and can include, for example, fixed connections, detachable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.
Example (b):
referring to fig. 1 and fig. 2 in combination, the present application provides a breathing oxygen supply device for a sealed cabin, which includes a support frame 1, an oxygen supply pipeline 2, an electromagnetic valve 3, a flow regulating valve 4, an oxygen pressure gauge 13, an oxygen flow meter 5, a fan 6 and an electric control box 11; the supporting frame 1 is of a square frame structure, a horizontal positioning plate 7 is arranged on the top of the supporting frame, a horizontal supporting plate 8 is arranged on the lower portion of the supporting frame, and the horizontal positioning plate 7 and the horizontal supporting plate 8 are parallel and are arranged horizontally; the oxygen supply pipeline 2 is arranged on the support frame 1, and the electromagnetic valve 3, the flow regulating valve 4, the oxygen pressure gauge 13 and the oxygen flow meter 5 are arranged on the oxygen supply pipeline 2; the fan 6 is arranged on the horizontal support plate 8 and is provided with an air inlet 9 and an air outlet 10, the air inlet 9 is horizontally arranged at one side of the fan 6, and the air outlet 10 is vertically arranged on the top of the fan 6 and penetrates through the horizontal positioning plate 7; the air inlet 12 of the oxygen supply duct 2 is located below the air inlet 9, and the air outlet is located adjacent to the air outlet 10, so as to mix the supplied oxygen with the air discharged from the air outlet 10 and deliver the mixed oxygen to each of the sealed compartments. The electric control box 11 is respectively electrically connected with the electromagnetic valve 3 and the fan 6. The device has the advantages of compact integral structure, small volume, low wind resistance, low noise, high safety and simple operation and maintenance.
It should be noted that the air inlet 9 is horizontally disposed and parallel to the horizontal positioning plate 7. Moreover, the air inlet 9 is sleeved with a damping hose, and the air outlet 10 is sleeved with a damping hose.
Meanwhile, 1mm rubber pads are adhered to each corner end of the fan 6, which is in contact with the support frame 1. In addition, a porous sound absorption material is filled in the inner cavity of the volute of the fan 6.
It should be noted that low-pressure pure oxygen provided by other systems in the cabin enters the air outlet 10 of the fan 6 through the electromagnetic valve 3, the flow regulating valve 4 and the oxygen flow meter 5, the electromagnetic valve 3 controls the on-off of the oxygen supply pipeline 2, the flow regulating valve 4 regulates the oxygen flow and supplies air, and the oxygen flow meter 5 is used for displaying the regulating effect of the flow regulating valve 4. After oxygen and air fully enter the oxygen mixing chamber, the oxygen and the air are sent to each rear-stage chamber through the air supply main pipe of the sealed chamber.
All connecting pipelines of the device are degreased and qualified; the assembly site of the device is clean and dustless, and redundant materials are strictly forbidden to be mixed into a system pipeline during assembly. Meanwhile, a reasonable square frame structure is adopted, so that vibration generated by the fan 6 is uniformly transmitted to the vibration isolator in the cabin for mounting the device, and the blocking of the sound channel is facilitated. In addition, the position of an air outlet 10 of a conventional volute of the fan 6 is changed, so that the air outlet 10 of the fan 6 in the device is vertically upward and extends out of the square frame structure, the length of a pipeline can be shortened, the resistance of the pipeline is reduced, the height and the gravity center of the square frame structure can be reduced, and the influence of the vibration of the fan 6 is reduced. Meanwhile, in order to ensure that the vibration of the fan 6 does not affect the supporting frame 1 and the external pipeline when the fan 6 works, damping hoses are additionally arranged at the air inlet 9 and the air outlet 10 of the fan 6, so that the vibration of the fan 6 is not transmitted to the external pipeline. And, 1mm rubber pad is all pasted with the contact site of braced frame 1 to fan 6, plays the vibration damping and falls the effect of making an uproar.
In addition, the small specific speed technology developed by the vortex sound theory is adopted, the blade installation angle is reduced, the flow channel structure of the fan 6 is reasonably designed, and the vortex noise of the fan 6 is reduced. The noise of the fan 6 can be reduced by carrying out reasonable noise elimination treatment on the volute of the fan 6, a square frame structure is arranged outside the fan 6 to surround the volute of the fan 6, so that a small space is formed between the frame structure and the volute, and the effect of noise reduction can be achieved by filling the porous sound absorption material in the space of the volute of the fan 6.
Meanwhile, the electromagnetic valve 3 is interlocked with the fan 6, and a starting logic is arranged in the electric control box 11; the electromagnetic valve 3 can be opened only on the premise of starting the fan 6, and when the electromagnetic valve 3 is closed, the fan 6 is closed (or closed simultaneously) firstly and then, so that the use safety is improved.
The working principle of the breathing oxygen supply device for the sealed cabin is as follows;
a related valve for air supply at the front end of the breathing and oxygen supply device for the sealed cabin and a related valve for air supply at the rear end are opened, a power switch is closed, and a power indicator lamp on the electric control box 11 is on; rotating a switch of the fan 6 to an opening position, electrifying the electric control box 11, starting the fan 6, and lighting an operation indicator lamp of the fan 6; meanwhile, the auxiliary contact of the electric control box 11 is closed, and the electromagnetic valve 3 is allowed to act; firstly, the flow regulating valve 4 is closed, at the moment, the button of the electromagnetic valve 3 is pressed, the oxygen supply pipeline 2 is opened after the electromagnetic valve 3 is electrified, so that oxygen and air are mixed, then the flow regulating valve 4 is slowly opened, the oxygen flowmeter 5 is observed, the oxygen flow is regulated to the required oxygen flow, and the mixed air is sent out through the air outlet 10.
To sum up, among the sealed cabin of this application is with breathing apparatus of oxygen supply, it is through integrating, the modularized design, with oxygen control pipeline, automatically controlled box 11, flow control valve 4, manometer, flowmeter all integrated in a square braced frame 1, through rational arrangement, shorten pipeline resistance consumption, reduce equipment volume and windage, effectively improve the utilization ratio in the sealed cabin interior nervous space. Simultaneously, it can match the demand of breathing oxygen suppliment pipeline in the cabin, satisfies system operation demand pressure, provides suitable oxygen suppliment ability. In addition, the vibration noise can be effectively reduced, and the requirement on the comfort of the cabin is met. Moreover, the pipeline of the device has good sealing performance, and the use safety of pure oxygen can be ensured.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (7)
1. A breathing oxygen supply device for a sealed cabin is characterized by comprising a supporting frame, an oxygen supply pipeline, an electromagnetic valve, a flow regulating valve, an oxygen flowmeter, an oxygen pressure gauge and a fan; the top of the supporting frame is provided with a horizontal positioning plate, the lower part of the supporting frame is provided with a horizontal supporting plate, and the horizontal positioning plate and the horizontal supporting plate are parallel and are horizontally arranged; the oxygen supply pipeline is arranged on the support frame, and the electromagnetic valve, the flow regulating valve, the oxygen pressure gauge and the oxygen flow meter are arranged on the oxygen supply pipeline; the fan is arranged on the horizontal support plate and is provided with an air inlet and an air outlet, the air inlet is horizontally arranged at one side of the fan, and the air outlet is vertically arranged on the top of the fan and penetrates through the horizontal positioning plate; the air inlet of oxygen suppliment pipeline is in the below of air intake, and the gas outlet is close to the air outlet for with the oxygen that provides with the air that discharges in the air outlet mixes and carry to each cabin in the sealed cabin.
2. The breathing and oxygen supply apparatus for a sealed cabin of claim 1, wherein the air inlet is horizontally disposed and parallel to the horizontal positioning plate.
3. The breathing and oxygen supply device for the sealed cabin according to claim 1, further comprising an electric control box, wherein the electric control box is electrically connected with the electromagnetic valve and the fan respectively.
4. The breathing and oxygen supply device for the sealed cabin according to claim 1, wherein the air inlet is sleeved with a damping hose, and the air outlet is sleeved with a damping hose.
5. The breathing oxygen supply apparatus for a sealed enclosure of claim 1 wherein the support frame is a square frame structure.
6. The breathing and oxygen supply apparatus for the sealed cabin of claim 1, wherein 1mm rubber pads are adhered to each corner end of the fan contacting the supporting frame.
7. The breathing and oxygen supply apparatus for a sealed cabin of claim 1, wherein the inner chamber of the volute of the blower is filled with a porous sound absorbing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211028912.0A CN115430073A (en) | 2022-08-26 | 2022-08-26 | Breathing oxygen supply device for sealed cabin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211028912.0A CN115430073A (en) | 2022-08-26 | 2022-08-26 | Breathing oxygen supply device for sealed cabin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115430073A true CN115430073A (en) | 2022-12-06 |
Family
ID=84244475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211028912.0A Pending CN115430073A (en) | 2022-08-26 | 2022-08-26 | Breathing oxygen supply device for sealed cabin |
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| Country | Link |
|---|---|
| CN (1) | CN115430073A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1243282A1 (en) * | 2001-03-21 | 2002-09-25 | Airox | Ventilator |
| US20130008444A1 (en) * | 2010-03-25 | 2013-01-10 | Resmed Paris Sas | Breathable gas inlet control device for respiratory treatment apparatus |
| CN203321572U (en) * | 2013-05-15 | 2013-12-04 | 福建省东南机械科技有限公司 | Oxygen control cabinet for mining lifesaving cabin |
| CN103626132A (en) * | 2012-08-22 | 2014-03-12 | 张碧波 | Portable oxygenerator suitable for plateau section |
| CN103736186A (en) * | 2013-12-13 | 2014-04-23 | 科迈（常州）电子有限公司 | Pipeline noise reduction structure for breathing machine |
| CN210591315U (en) * | 2019-08-23 | 2020-05-22 | 合肥同智机电控制技术有限公司 | Military vehicle-mounted oxygen supply device |
| US20200282172A1 (en) * | 2019-03-07 | 2020-09-10 | Loewenstein Medical Technology S.A. | Respirator with a mixing chamber, and mixing chamber for a respirator |
| CN212457168U (en) * | 2020-06-16 | 2021-02-02 | 杨朋飞 | Oxygen content adjusting system combined with existing air conditioning system |
| CN215135189U (en) * | 2021-04-20 | 2021-12-14 | 深圳市明桦机电有限责任公司 | Breathing machine |
| CN113952564A (en) * | 2021-09-10 | 2022-01-21 | 安徽砺剑防务科技有限公司 | Closed loop oxygen suppliment respiratory |
| CN114099996A (en) * | 2021-12-31 | 2022-03-01 | 郑州旅游职业学院 | Portable oxygen supply method in high-altitude tourism |
-
2022
- 2022-08-26 CN CN202211028912.0A patent/CN115430073A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1243282A1 (en) * | 2001-03-21 | 2002-09-25 | Airox | Ventilator |
| US20130008444A1 (en) * | 2010-03-25 | 2013-01-10 | Resmed Paris Sas | Breathable gas inlet control device for respiratory treatment apparatus |
| CN103626132A (en) * | 2012-08-22 | 2014-03-12 | 张碧波 | Portable oxygenerator suitable for plateau section |
| CN203321572U (en) * | 2013-05-15 | 2013-12-04 | 福建省东南机械科技有限公司 | Oxygen control cabinet for mining lifesaving cabin |
| CN103736186A (en) * | 2013-12-13 | 2014-04-23 | 科迈（常州）电子有限公司 | Pipeline noise reduction structure for breathing machine |
| US20200282172A1 (en) * | 2019-03-07 | 2020-09-10 | Loewenstein Medical Technology S.A. | Respirator with a mixing chamber, and mixing chamber for a respirator |
| CN210591315U (en) * | 2019-08-23 | 2020-05-22 | 合肥同智机电控制技术有限公司 | Military vehicle-mounted oxygen supply device |
| CN212457168U (en) * | 2020-06-16 | 2021-02-02 | 杨朋飞 | Oxygen content adjusting system combined with existing air conditioning system |
| CN215135189U (en) * | 2021-04-20 | 2021-12-14 | 深圳市明桦机电有限责任公司 | Breathing machine |
| CN113952564A (en) * | 2021-09-10 | 2022-01-21 | 安徽砺剑防务科技有限公司 | Closed loop oxygen suppliment respiratory |
| CN114099996A (en) * | 2021-12-31 | 2022-03-01 | 郑州旅游职业学院 | Portable oxygen supply method in high-altitude tourism |
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Application publication date: 20221206 |