CN111377067A - System for circulating air supply of sealed cabin under vacuum environment - Google Patents
System for circulating air supply of sealed cabin under vacuum environment Download PDFInfo
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- CN111377067A CN111377067A CN201811624178.8A CN201811624178A CN111377067A CN 111377067 A CN111377067 A CN 111377067A CN 201811624178 A CN201811624178 A CN 201811624178A CN 111377067 A CN111377067 A CN 111377067A
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- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
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Abstract
The invention provides a system for circularly supplying air to a sealed cabin in a vacuum environment, which comprises a high-pressure oxygen tank, a first pressure reducing valve, a high-pressure nitrogen tank, a second pressure reducing valve, a waste gas treatment unit, an air conditioning device and a first power unit, wherein the first pressure reducing valve is connected with the high-pressure oxygen tank, the second pressure reducing valve is connected with the high-pressure nitrogen tank, the waste gas treatment unit is used for treating waste gas in the sealed cabin and outputting residual oxygen and nitrogen, the air conditioning device is respectively connected with the first pressure reducing valve, the second pressure reducing valve and the waste gas treatment unit, the air conditioning device is used for carrying out pressure and flow regulation on the pressure-regulated oxygen, nitrogen and residual oxygen and nitrogen, and the first power unit is used for sending the pressure-regulated oxygen and flow-regulated nitrogen to the sealed cabin. By applying the technical scheme provided by the invention, the technical problem that the gas compressor in the prior art has a small pressure ratio and cannot meet the requirement of an application occasion with a large pressure ratio is solved.
Description
Technical Field
The invention relates to the technical field of air supply of a sealed cabin in a vacuum environment, in particular to a system for circularly supplying air to the sealed cabin in the vacuum environment.
Background
On space shuttle or space shuttle, or on aircraft with flight altitude greater than 25km, regenerative cabins are used, since no outside atmosphere is available. The air in the cabin is not discharged to the atmosphere, and in order to eliminate the excess water vapor and carbon dioxide in the cabin, the air is regenerated by a regenerating device with absorbent arranged in the cabin, and the air is pressurized and supplied to the cabin only for supplementing the air leaked from the cabin, so that the air supply amount required for pressurization is small.
The main source of pressurized air for modern jet airliners is the bleed air from the engine compressor. After the air outside the cabin is pressurized, the air must be sent into the cabin after being regulated in temperature, humidity, dust filtration and the like according to the pressure and temperature on the real-time flying height, and when the pressure in the cabin is overhigh, the pressure is regulated through an exhaust valve.
The high-speed railway running train usually sucks fresh air outside the train and mixes the fresh air with recirculated air in the train, after dust and impurities are filtered, the fresh air is delivered into the train in a compressed mode, and meanwhile, redundant dirty air in the train is discharged, so that the cleanliness, reasonable flowing speed and reasonable airflow organization of the air in the train are guaranteed.
Because the sealed cabin is located in a vacuum environment, when a large amount of useful air is needed by personnel in the cabin, if a direct air-entraining mode is adopted, the air outside the cabin needs to be pressurized by installing the air compressor and then can be utilized, and the pressurization ratio (the ratio of the total pressure of the air at the outlet of the air compressor to the total pressure of the air at the inlet) is up to hundreds or even thousands. Compressors are mainly classified into two types: centrifugal compressors and axial compressors. The pressure ratio of the prior centrifugal compressor can reach more than 12, and the pressure ratio of the multistage axial-flow compressor can reach more than 25. If a mode of connecting a plurality of air compressors in series is adopted to meet the pressurization requirement, at least 3 air compressors are needed under the ideal condition, but the matching and efficiency problems among the air compressors exist in the practical application process, and the problems of energy consumption, heat dissipation capacity, installation space and the like are accompanied, so that the application range of the direct air entraining method is restricted, and therefore, the direct air entraining method is not suitable for occasions with smaller cabin bodies and larger air consumption.
Disclosure of Invention
The invention provides a system for circularly supplying air to a sealed cabin in a vacuum environment, which can solve the technical problem that the prior art has a small pressure ratio of a compressor and cannot meet the application occasion with a large pressure ratio.
The invention provides a system for circularly supplying air to a sealed cabin in a vacuum environment, which comprises: the high-pressure oxygen tank is used for providing high-pressure oxygen; the first pressure reducing valve is connected with the high-pressure oxygen tank and used for regulating the high-pressure oxygen output by the high-pressure oxygen tank to a first set pressure range; the high-pressure nitrogen tank is used for providing high-pressure nitrogen; the second pressure reducing valve is connected with the high-pressure nitrogen tank and used for adjusting the high-pressure nitrogen output by the high-pressure nitrogen tank to a second set pressure range; the waste gas treatment unit is used for treating waste gas in the sealed cabin body and outputting residual oxygen and nitrogen; the air conditioning device is respectively connected with the first pressure reducing valve, the second pressure reducing valve and the waste gas treatment unit, and is used for adjusting the pressure and the flow of the oxygen and the nitrogen after pressure adjustment and the residual oxygen and the nitrogen; and the first power unit is used for sending the oxygen and the nitrogen with the regulated pressure and flow to the sealed cabin body.
Furthermore, the system also comprises an oxygen pressure sensor and an oxygen flow sensor, wherein the oxygen pressure sensor is used for monitoring the pressure of the oxygen regulated by the first pressure reducing valve in real time; the oxygen flow sensor is used for monitoring the flow of the oxygen regulated by the first pressure reducing valve in real time.
Further, the system also comprises a nitrogen pressure sensor and a nitrogen flow sensor, wherein the nitrogen pressure sensor is used for monitoring the pressure of the nitrogen regulated by the second pressure reducing valve in real time; and the nitrogen flow sensor is used for monitoring the flow of the nitrogen regulated by the second pressure reducing valve in real time.
Further, the system also comprises a second power unit, the second power unit is respectively connected with the sealed cabin body and the waste gas treatment unit, and the second power unit is used for sending the waste gas in the sealed cabin body into the waste gas treatment unit.
Further, the exhaust gas treatment unit includes a first filter for treating water vapor and carbon dioxide in the exhaust gas and outputting remaining oxygen and nitrogen.
Furthermore, the system also comprises a nitrogen and oxygen flow sensor, the nitrogen and oxygen flow sensor is arranged between the first filter and the air conditioning device, and the nitrogen and oxygen flow sensor is used for monitoring the flow of the residual oxygen and nitrogen after the waste gas treatment in real time.
Further, the air conditioning device comprises a controller, a first measuring sensor and a second measuring sensor, wherein the first measuring sensor is used for monitoring the total pressure, the oxygen pressure and the oxygen flow of the gas in the sealed cabin, the second measuring sensor is used for monitoring the concentration, the pressure and the flow of the oxygen and the nitrogen in the air conditioning device, and the controller is used for regulating the pressure and the flow of the oxygen and the nitrogen in the air conditioning device according to the total pressure, the oxygen pressure and the oxygen flow of the gas in the sealed cabin.
Further, the air conditioning device further comprises a second filter for filtering other gases of the oxygen and the nitrogen.
Further, the air conditioning device also comprises a temperature adjusting device and a humidity adjusting device, wherein the temperature adjusting device is used for adjusting the temperature of the filtered oxygen and nitrogen to be within a temperature set threshold range, and the humidity adjusting device is used for adjusting the humidity of the filtered oxygen and nitrogen to be within a humidity set threshold range.
Further, the first power unit includes a blower and the second power unit includes a return air fan.
By applying the technical scheme of the invention, the system for circularly supplying the air to the sealed cabin in the vacuum environment is provided, the system combines the air sources provided by the high-pressure oxygen tank and the high-pressure nitrogen tank with the oxygen and the nitrogen recovered from the waste gas of the sealed cabin through effective airflow organization by depending on the air source carried by the system, and the air sources are jointly used for supplying the air to the sealed cabin, so that the air supply requirement of the sealed cabin with the requirement of people can be met. Compared with the prior art, the system for circularly supplying air to the sealed cabin body provided by the invention does not need to directly introduce external air, and effectively solves the problem that the existing air compressor has a small pressure ratio and cannot meet the application occasions with a large pressure ratio.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic composition diagram of a system for circulating gas supply to a sealed chamber under a vacuum environment according to an embodiment of the present invention.
Wherein the figures include the following reference numerals:
10. a high pressure oxygen tank; 20. a first pressure reducing valve; 30. a high-pressure nitrogen tank; 40. a second pressure reducing valve; 50. an air conditioning device; 51. a controller; 52. a first measurement sensor; 60. an oxygen pressure sensor; 70. an oxygen flow sensor; 80. a nitrogen pressure sensor; 90. a nitrogen flow sensor; 100. a return fan; 110. a first filter; 120. nitrogen and oxygen flow sensors; 130. an air blower.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. 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, further discussion thereof is not required in subsequent figures.
As shown in fig. 1, according to an embodiment of the present invention, there is provided a system for circularly supplying gas to a sealed cabin in a vacuum environment, the system comprising a high pressure oxygen tank 10, a first pressure reducing valve 20, a high pressure nitrogen tank 30, a second pressure reducing valve 40, an exhaust gas treatment unit, an air conditioning device 50 and a first power unit, wherein the high pressure oxygen tank 10 is used for supplying high pressure oxygen, the first pressure reducing valve 20 is connected to the high pressure oxygen tank 10, the first pressure reducing valve 20 is used for regulating the high pressure oxygen output from the high pressure oxygen tank 10 to a first set pressure range, the high pressure nitrogen tank is used for supplying high pressure nitrogen, the second pressure reducing valve 40 is connected to the high pressure nitrogen tank 30, the second pressure reducing valve 40 is used for regulating the high pressure nitrogen output from the high pressure nitrogen tank 30 to a second set pressure range, the exhaust gas treatment unit is used for treating the exhaust gas in the sealed cabin and outputting the rest, the air conditioning device is respectively connected with the first pressure reducing valve 20, the second pressure reducing valve 40 and the waste gas treatment unit, the air conditioning device 50 is used for carrying out pressure and flow regulation on the oxygen and nitrogen after pressure regulation and the residual oxygen and nitrogen, and the first power unit is used for sending the oxygen and nitrogen after pressure and flow regulation to the sealed cabin.
By applying the configuration mode, the system for circularly supplying air to the sealed cabin in the vacuum environment is provided, the system combines the air sources provided by the high-pressure oxygen tank 10 and the high-pressure nitrogen tank 30 with the oxygen and nitrogen recovered from the waste gas of the cabin through effective air flow organization by depending on the air source carried by the system, and is jointly used for supplying air to the sealed cabin, and the mode can meet the air supply requirement of the sealed cabin with the requirement of people. Compared with the prior art, the system for circularly supplying air to the sealed cabin body provided by the invention does not need to directly introduce external air, and effectively solves the problem that the existing air compressor has a small pressure ratio and cannot meet the application occasions with a large pressure ratio.
Further, in the present invention, in order to provide comfort for passengers in the sealed cabin and prevent the passenger from being affected by excessive air pressure after air supply to the sealed cabin, the air pressure and flow rate of the external air supply need to be monitored in real time. Specifically, the system further comprises an oxygen pressure sensor 60 and an oxygen flow sensor 70, wherein the oxygen pressure sensor 60 is used for monitoring the pressure of the oxygen regulated by the first pressure reducing valve 20 in real time; the oxygen flow sensor 70 is used to monitor the flow rate of the oxygen adjusted by the first pressure reducing valve 20 in real time. Similarly, the system further comprises a nitrogen pressure sensor 80 and a nitrogen flow rate sensor 90, wherein the nitrogen pressure sensor 80 is used for monitoring the pressure of the nitrogen adjusted by the second reducing valve 40 in real time; the nitrogen flow rate sensor 90 is used to monitor the flow rate of the nitrogen gas adjusted by the second pressure reducing valve 40 in real time.
By applying the configuration mode, the pressure of the oxygen adjusted by the first pressure reducing valve 20 is monitored in real time through the oxygen pressure sensor 60, the pressure of the nitrogen adjusted by the second pressure reducing valve 40 is monitored in real time through the nitrogen pressure sensor 80, the pressure of the oxygen and the nitrogen acted by the pressure reducing valves can be visually known, and when the pressure of the oxygen and/or the nitrogen decompressed by the pressure reducing valves seriously exceeds the upper limit, emergency measures can be taken, for example, the pressure of the output oxygen can be limited by arranging a pressure limiting device to prevent high-pressure gas from entering a passenger cabin, so that the safety of gas supply is ensured. In addition, the flow of the oxygen adjusted by the first pressure reducing valve 20 is monitored in real time through the oxygen flow sensor 70, the flow of the nitrogen adjusted by the second pressure reducing valve 40 is monitored in real time through the nitrogen flow sensor 90, the supply flow of the oxygen and the nitrogen can be more visually known, and the supply flow of the oxygen and the nitrogen is adjusted according to the flow proportion of the oxygen and the nitrogen in the sealed cabin.
Further, in the present invention, in order to realize the recycling of the gas and improve the gas utilization rate, the system may be configured to further include a second power unit, the second power unit is respectively connected to the sealed cabin and the exhaust gas treatment unit, and the second power unit is configured to send the exhaust gas in the sealed cabin to the exhaust gas treatment unit. Specifically, in an embodiment of the present invention, the first power unit includes a blower and the second power unit includes a return air fan.
Further, as an embodiment of the present invention, the exhaust gas treatment unit includes a first filter 110, and the first filter 110 is used to treat water vapor and carbon dioxide in the exhaust gas and output the remaining oxygen and nitrogen.
Further, in the present invention, in order to enable a more intuitive understanding of the flow rate of the recovered gas, the system may be configured to further include a nitrogen and oxygen flow rate sensor, the nitrogen and oxygen flow rate sensor is disposed between the first filter 110 and the air conditioning device 50, and the nitrogen and oxygen flow rate sensor is configured to monitor the flow rate of the remaining oxygen and nitrogen after the exhaust gas treatment in real time. Specifically, in the present invention, after the first filter 110 treats the water vapor and the carbon dioxide in the exhaust gas, the nitrogen and oxygen flow sensor 120 can monitor the flow of the oxygen and the nitrogen remaining after the exhaust gas treatment in real time.
In the present invention, in order to supplement the consumption of the gas in the sealed cabin and improve the riding comfort of the passengers, after the pressure-regulated oxygen and nitrogen and the rest of the oxygen and nitrogen enter the air conditioning device, the air conditioning device 50 performs pressure and flow regulation on the pressure-regulated oxygen and nitrogen and the rest of the oxygen and nitrogen for inputting the oxygen and nitrogen with corresponding pressure and flow into the sealed cabin. Specifically, in the present invention, the air conditioning device 50 includes a controller 51, a first measurement sensor 52 and a second measurement sensor, the first measurement sensor 52 is used for monitoring the total pressure, the oxygen pressure and the oxygen flow rate of the gas in the sealed cabin, the second measurement sensor is used for monitoring the concentration, the pressure and the flow rate of the oxygen and the nitrogen in the air conditioning device 50, and the controller 51 is used for regulating the pressure and the flow rate of the oxygen and the nitrogen in the air conditioning device 50 according to the total pressure, the oxygen pressure and the oxygen flow rate of the gas in the sealed cabin.
Further, in the present invention, in order to improve the cleanliness of the supplied air, the air conditioning device 50 may be configured to further include a second filter for filtering other gases of oxygen and nitrogen.
Further, in the present invention, in order to improve the comfort of passengers in the sealed cabin, the air conditioning device 50 may be configured to further include a temperature adjusting device for adjusting the temperature of the filtered oxygen and nitrogen to a temperature setting threshold range and a humidity adjusting device for adjusting the humidity of the filtered oxygen and nitrogen to a humidity setting threshold range.
According to another aspect of the present invention, there is provided a method for circularly supplying gas to a sealed enclosure under a vacuum environment, the method comprising: the high-pressure oxygen tank 10 outputs high-pressure oxygen which is adjusted to a first set pressure range through a first pressure reducing valve 20; the high-pressure nitrogen tank 30 outputs high-pressure nitrogen, the high-pressure nitrogen is adjusted to a second set pressure range through a second pressure reducing valve 40, and the oxygen and the nitrogen after pressure adjustment enter the air adjusting device 50; treating the waste gas in the sealed cabin, and sending the residual oxygen and nitrogen after the waste gas treatment to an air conditioning device 50; the air conditioning device 50 adjusts the pressure and flow rate of the oxygen and nitrogen gas after pressure adjustment and the remaining oxygen and nitrogen gas; sending the oxygen and the nitrogen with the regulated pressure and flow to the sealed cabin body; and repeating the steps to realize the circular gas supply of the sealed cabin body in the vacuum environment.
By applying the configuration mode, a method for circularly supplying air to the sealed cabin in a vacuum environment is provided, the method combines the air sources provided by the high-pressure oxygen tank 10 and the high-pressure nitrogen tank 30 with oxygen and nitrogen recovered from the waste gas of the cabin through effective airflow organization by depending on the air source carried by the method, and the air sources are jointly used for supplying air to the sealed cabin, and the method can meet the air supply requirement of the sealed cabin with the requirement of people. Compared with the prior art, the method for circularly supplying air to the sealed cabin body does not need to directly introduce external air, and effectively solves the problem that the existing air compressor has smaller pressure ratio and cannot meet the application occasion with larger pressure ratio.
Further, in the present invention, in order to provide comfort for passengers in the sealed cabin and prevent the passenger from being affected by excessive air pressure after air supply to the sealed cabin, the air pressure and flow rate of the external air supply need to be monitored in real time. Specifically, before the pressure-regulated oxygen enters the air conditioning device 50, the method further includes: the oxygen pressure sensor 60 monitors the pressure of the oxygen adjusted by the first pressure reducing valve 20 in real time; the oxygen flow sensor 70 monitors the flow rate of the oxygen adjusted by the first pressure reducing valve 20 in real time. Similarly, before the nitrogen gas after pressure regulation enters the air conditioning device 50, the method further includes: the nitrogen pressure sensor 80 monitors the pressure of the nitrogen gas adjusted by the second pressure reducing valve 40 in real time; the nitrogen flow rate sensor 90 monitors the flow rate of the nitrogen gas adjusted by the second pressure reducing valve 40 in real time.
In addition, in the present invention, in order to realize the recycling of gas and improve the gas utilization rate, the treatment of the exhaust gas in the sealed cabin specifically includes: under the action of the air returning machine 100, the waste gas in the sealed cabin is sent to the first filter 110, the first filter 110 treats the water vapor and the carbon dioxide in the waste gas, and the residual oxygen and nitrogen after the waste gas treatment are recovered.
By applying the configuration mode, the waste gas in the sealed cabin is recycled, the water vapor and the carbon dioxide in the waste gas are removed, the residual oxygen and the residual nitrogen can be obtained through filtration, and the residual oxygen and the residual nitrogen are mixed with the fresh external gas provided by the high-pressure oxygen tank and the high-pressure nitrogen tank, so that the residual oxygen and the residual nitrogen can be reused for gas supply of the sealed cabin.
Further, in the present invention, in order to make the flow rate of the recovered gas more intuitively understood, after the first filter 110 treats the water vapor and the carbon dioxide in the exhaust gas, the method further includes: and monitoring the flow of the residual oxygen and nitrogen after the waste gas treatment in real time.
In the present invention, after the pressure-regulated oxygen and nitrogen gas and the remaining oxygen and nitrogen gas enter the air conditioning device, the air conditioning device 50 performs pressure and flow regulation on the pressure-regulated oxygen and nitrogen gas and the remaining oxygen and nitrogen gas to input the oxygen and nitrogen gas with corresponding pressure and flow into the sealed cabin, so as to supplement the consumption of the gas in the sealed cabin and improve the riding comfort of passengers. Specifically, in the present invention, the pressure and flow rate adjustment of the pressure-adjusted oxygen and nitrogen gas and the remaining oxygen and nitrogen gas by the air conditioning device 50 includes: monitoring the concentration, pressure and flow of oxygen and nitrogen in the air conditioning device 50 respectively; respectively monitoring the total pressure, the oxygen pressure and the oxygen flow of the gas in the sealed cabin body; the oxygen and nitrogen in the air conditioning device 50 are adjusted in pressure and flow rate according to the total pressure of the gas in the sealed cabin, the oxygen pressure and the oxygen flow rate.
Further, in the present invention, in order to improve the cleanliness of the supplied air, after the pressure and flow rate of the oxygen and nitrogen gas in the air conditioning device 50 are adjusted, the method further includes: and feeding the oxygen and the nitrogen after pressure and flow regulation into a second filter, and filtering other gases in the oxygen and the nitrogen by the second filter.
In addition, in the invention, in order to improve the riding comfort of passengers in the sealed cabin, after the second filter filters other gases in oxygen and nitrogen, the method further comprises the following steps: and adjusting the temperature and humidity of the filtered oxygen and nitrogen so that the temperature and humidity ranges of the oxygen and nitrogen are within the set threshold range. Specifically, after other gases in the oxygen and nitrogen are filtered by the second filter, the temperature and the humidity of the oxygen and the nitrogen are respectively regulated by the temperature regulating device and the humidity regulating device, so that the comfort level of passengers is improved. In addition, in the present invention, after the oxygen and nitrogen outputted from the air conditioner are filtered and temperature and humidity adjusted, the pressure and flow rate adjusted oxygen and nitrogen may be supplied to the sealed cabin by the blower 130.
In order to further understand the present invention, the operation of the circulating gas supply system for a sealed chamber under vacuum environment of the present invention will be described in detail with reference to fig. 1.
As shown in fig. 1, according to an embodiment of the present invention, a system for circulating gas supply to a sealed chamber in a vacuum environment is provided, and the operation process of the system specifically includes the following steps.
The high-pressure oxygen tank outputs high-pressure oxygen which is adjusted to a first set pressure range through the first pressure reducing valve 20, the high-pressure nitrogen tank 30 outputs high-pressure nitrogen which is adjusted to a second set pressure range through the second pressure reducing valve 40, wherein the first pressure reducing valve 20 and the second pressure reducing valve 40 are used for adjusting the pressure of the high-pressure gas to be lower than the original pressure, stabilizing the gas in a specified low-pressure range, and keeping the outlet pressure constant no matter the gas supply flow. The inlets of the first pressure reducing valve 20 and the second pressure reducing valve 40 are respectively connected with the outlets of the oxygen and nitrogen bottles through high-pressure conduits, the outlet of the first pressure reducing valve 20 is provided with an oxygen pressure sensor 60 and an oxygen flow sensor 70, the outlet of the second pressure reducing valve 40 is provided with a nitrogen pressure sensor 80 and a nitrogen flow sensor 80, the oxygen pressure sensor 60 and the nitrogen pressure sensor 80 are used for detecting the pressure reducing effect, once the pressure reducing pressure seriously exceeds the upper limit, emergency measures are taken to prevent high-pressure gas from entering the passenger cabin, and the safety of gas supply is ensured. The oxygen flow sensor 70 and the nitrogen flow sensor 80 are respectively used for monitoring the flow of the gas in real time, and the adjusted oxygen and nitrogen jointly enter the air conditioning device 50 for matching.
Under the effect of air return fan 100, the waste gas in the sealed cabin body is sent into first filter 110, and water vapour and carbon dioxide in the waste gas are handled to first filter 110, and remaining oxygen and nitrogen gas after handling are retrieved, and remaining oxygen and nitrogen gas after the waste gas treatment send to air conditioning equipment 50, and in this process, the flow of remaining oxygen and nitrogen gas after the waste gas treatment realizes carrying out real-time supervision through nitrogen gas and oxygen flow sensor 120.
The adjusted oxygen and nitrogen and the residual oxygen and nitrogen after waste gas treatment are mixed and mixed in the air conditioning device 50, the first measuring sensor 52 is used for monitoring the total pressure and the oxygen pressure of the gas in the sealed cabin, and the controller 51 adjusts the pressure and the flow of the oxygen and nitrogen in the air conditioning device 50 according to the total pressure, the oxygen pressure and the oxygen flow of the gas in the sealed cabin obtained through monitoring, so that corresponding supplement can be performed according to the residual gas content in the sealed cabin, and the riding comfort of passengers is met.
The oxygen and the nitrogen after pressure and flow regulation are output from the air conditioning device after being filtered by a second filter, cooled or heated by a temperature regulating device, dehumidified or humidified by a humidity regulating device and the like, and are sent into the sealed cabin at a certain flow rate under the action of a blower; and repeating the steps, thereby realizing the circular gas supply of the sealed cabin body in the vacuum environment.
In summary, the present invention provides a system for circularly supplying gas to a sealed cabin in a vacuum environment, which combines gas sources provided by a high pressure oxygen tank 10 and a high pressure nitrogen tank 30 with oxygen and nitrogen recovered from exhaust gas of the cabin through an effective gas flow organization by means of a gas source carried by the system, and is used for supplying gas to the sealed cabin together. Compared with the prior art, the system for circularly supplying air to the sealed cabin body provided by the invention does not need to directly introduce external air, and effectively solves the problem that the existing air compressor has a small pressure ratio and cannot meet the application occasions with a large pressure ratio.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A system for circulating gas supply to a sealed cabin in a vacuum environment is characterized by comprising: a hyperbaric oxygen tank (10), the hyperbaric oxygen tank (10) being for providing hyperbaric oxygen;
the first pressure reducing valve (20), the first pressure reducing valve (20) is connected with the high-pressure oxygen tank (10), and the first pressure reducing valve (20) is used for adjusting the high-pressure oxygen output by the high-pressure oxygen tank (10) to a first set pressure range;
a high pressure nitrogen tank (30) for providing high pressure nitrogen;
the second pressure reducing valve (40), the second pressure reducing valve (40) is connected with the high-pressure nitrogen tank (30), and the second pressure reducing valve (40) is used for adjusting the high-pressure nitrogen output by the high-pressure nitrogen tank (30) to a second set pressure range;
the waste gas treatment unit is used for treating waste gas in the sealed cabin body and outputting residual oxygen and nitrogen;
the air conditioning device (50) is respectively connected with the first pressure reducing valve (20), the second pressure reducing valve (40) and the waste gas treatment unit, and the air conditioning device (50) is used for adjusting the pressure and the flow of the oxygen and the nitrogen after pressure adjustment and the residual oxygen and the nitrogen;
and the first power unit is used for sending the oxygen and the nitrogen with the regulated pressure and flow to the sealed cabin body.
2. The system for circularly supplying gas to the sealed cabin in the vacuum environment according to claim 1, further comprising an oxygen pressure sensor (60) and an oxygen flow sensor (70), wherein the oxygen pressure sensor (60) is used for monitoring the pressure of the oxygen adjusted by the first pressure reducing valve (20) in real time; the oxygen flow sensor (70) is used for monitoring the flow of the oxygen regulated by the first pressure reducing valve (20) in real time.
3. The system for cyclically supplying gas to the sealed cabin in the vacuum environment according to claim 2, further comprising a nitrogen pressure sensor (80) and a nitrogen flow rate sensor (90), wherein the nitrogen pressure sensor (80) is used for monitoring the pressure of the nitrogen gas regulated by the second pressure reducing valve (40) in real time; the nitrogen flow sensor (90) is used for monitoring the flow of the nitrogen regulated by the second pressure reducing valve (40) in real time.
4. The system for the circulating gas supply to the sealed cabin in the vacuum environment according to any one of claims 1 to 3, further comprising a second power unit, wherein the second power unit is respectively connected with the sealed cabin and the waste gas treatment unit, and the second power unit is used for sending the waste gas in the sealed cabin to the waste gas treatment unit.
5. The system for circularly supplying gas to the sealed cabin in the vacuum environment according to claim 4, wherein the exhaust gas treatment unit comprises a first filter (110), and the first filter (110) is used for treating water vapor and carbon dioxide in the exhaust gas and outputting the residual oxygen and nitrogen.
6. The system for cyclically supplying air to a sealed cabin in a vacuum environment according to claim 4, further comprising a nitrogen and oxygen flow sensor disposed between the first filter (110) and the air conditioning device (50), wherein the nitrogen and oxygen flow sensor is used for monitoring the flow of oxygen and nitrogen left after the waste gas treatment in real time.
7. The system for cyclically supplying air to a sealed cabin in a vacuum environment according to claim 6, wherein the air conditioning device (50) comprises a controller (51), a first measuring sensor (52) and a second measuring sensor, the first measuring sensor (52) is used for monitoring the total pressure, the oxygen pressure and the oxygen flow rate of the gas in the sealed cabin, the second measuring sensor is used for monitoring the concentration, the pressure and the flow rate of the oxygen and the nitrogen in the air conditioning device (50), and the controller (51) is used for regulating the pressure and the flow rate of the oxygen and the nitrogen in the air conditioning device (50) according to the total pressure, the oxygen pressure and the oxygen flow rate of the gas in the sealed cabin.
8. The system for cyclically supplying gas to a sealed chamber under a vacuum environment according to claim 7, wherein the air conditioning device (50) further comprises a second filter for filtering other gases of oxygen and nitrogen.
9. The system for cyclically supplying air to a sealed cabin in a vacuum environment according to claim 8, wherein the air conditioning device (50) further comprises a temperature adjusting device and a humidity adjusting device, the temperature adjusting device is used for adjusting the temperature of the filtered oxygen and nitrogen to a temperature setting threshold range, and the humidity adjusting device is used for adjusting the humidity of the filtered oxygen and nitrogen to a humidity setting threshold range.
10. The system for circulating air supply to a sealed enclosure under vacuum environment of claim 9, wherein the first power unit comprises a blower and the second power unit comprises a return air blower.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811624178.8A CN111377067A (en) | 2018-12-28 | 2018-12-28 | System for circulating air supply of sealed cabin under vacuum environment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811624178.8A CN111377067A (en) | 2018-12-28 | 2018-12-28 | System for circulating air supply of sealed cabin under vacuum environment |
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| CN111377067A true CN111377067A (en) | 2020-07-07 |
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| CN201811624178.8A Pending CN111377067A (en) | 2018-12-28 | 2018-12-28 | System for circulating air supply of sealed cabin under vacuum environment |
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