CN117682039A - Stratosphere double-ball series flight system and operation method thereof - Google Patents
Stratosphere double-ball series flight system and operation method thereof Download PDFInfo
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- 239000004698 Polyethylene Substances 0.000 claims description 4
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Abstract
The invention provides a stratospheric double-ball serial flight system and an operation method thereof, which relate to the technical field of floating aircrafts, wherein the stratospheric double-ball serial flight system comprises: the system comprises an overpressure balloon, a zero-pressure balloon, an air passage connecting assembly and a pod, wherein the overpressure balloon is arranged above the zero-pressure balloon, the overpressure balloon and the zero-pressure balloon are connected with each other through the air passage connecting assembly, the overpressure balloon can be in fluid communication with the zero-pressure balloon through the air passage connecting assembly, and the pod is connected to the bottom of the zero-pressure balloon. Therefore, the flight system can fully utilize the advantages of strong overpressure balloon pressure resistance and strong zero pressure balloon load capacity, realize high load on a stratosphere and flexibly and conveniently adjust the height position according to the use requirement.
Description
Technical Field
The invention relates to the technical field of floating aircrafts, in particular to a stratosphere double-ball serial flight system and an operation method thereof.
Background
The stratosphere with the altitude of about 20km has great application prospect in the fields of earth observation, communication and the like because the altitude of the stratosphere is higher than the general aviation altitude and is far lower than the satellite altitude. When tasks such as earth observation, scientific experiments, wireless communication and the like are required to be performed in the stratosphere, long-time flight is required in the stratosphere by means of a floating flight system. In the related art, a part of the floating flight system flies at high altitude using a zero pressure balloon or an overpressure balloon.
The zero-pressure balloon is mostly made of film polyethylene materials, has strong load capacity but can not bear pressure, and because of the change of temperature difference between day and night, the gas in the zero-pressure balloon can be expanded and discharged in daytime, so that the buoyancy at night is insufficient, and long-time flight is difficult to realize. The overpressure balloon has certain overpressure capacity, and the change of day and night temperature difference can change the internal pressure but can not cause the discharge of internal gas, so that the balloon can fly for a long time. In order to realize balloon height adjustment, in order to find the wind speed and wind direction more suitable for flying, an air bag is usually additionally arranged in the superpressure balloon, and the air bag is inflated or deflated through a fan and a valve to realize balloon height adjustment, but due to the problems of the fan capacity and efficiency, the mode of carrying out height adjustment through the auxiliary air bag is only realized on a small superpressure balloon in the order of kilocubic meters, and the load capacity is very small and cannot be realized on a large superpressure balloon.
Based on this, in order for the flight system to be capable of long standing flight and altitude autonomous adjustment at the level of the stratosphere, and with sufficient load capacity, it is necessary to provide a new flight system.
Disclosure of Invention
The invention provides a stratospheric double-ball serial flight system and an operation method thereof, which are used for solving the defects that a flight system in the prior art cannot fly at the stratosphere height for a long time in a standing space and can not be adjusted automatically, and the load capacity is limited.
According to a first aspect of the present invention there is provided a stratospheric twin-ball tandem flight system comprising: the system comprises an overpressure balloon, a zero-pressure balloon, an air passage connecting assembly and a pod, wherein the overpressure balloon is arranged above the zero-pressure balloon, the overpressure balloon and the zero-pressure balloon are mutually connected through the air passage connecting assembly, the overpressure balloon can be in fluid communication with the zero-pressure balloon through the air passage connecting assembly, and the pod is connected to the bottom of the zero-pressure balloon.
According to the stratospheric double-ball serial flight system provided by the invention, the gas path connecting assembly comprises a valve, a fan, an overpressure buffer air bag and a gas transmission pipeline, the overpressure buffer air bag is arranged between the overpressure air bag and the zero-pressure air bag, the top of the overpressure buffer air bag is communicated with the overpressure air bag through the valve and the fan, and the bottom of the overpressure buffer air bag is communicated with the zero-pressure air bag through the gas transmission pipeline.
According to the stratosphere double-ball series flight system provided by the invention, the air circuit connecting assembly further comprises a bearing rope and a winch, the winch is fixedly connected to the overpressure buffer air bag, one end of the bearing rope is fixedly connected to the top of the zero-pressure balloon, the other end of the bearing rope is connected to the winch, and the winch can retract and release the bearing rope.
According to the stratosphere double-ball serial flight system provided by the invention, the gas transmission pipeline is constructed as a telescopic pipeline which can be contracted along the length direction of the gas transmission pipeline.
According to the stratosphere double-ball series flight system provided by the invention, the number of the bearing ropes is multiple, and the bearing ropes are sequentially arranged at intervals along the circumferential direction of the gas pipeline.
According to the stratospheric double-ball serial flight system provided by the invention, the overpressure balloon is made of a composite material, and the outside of the overpressure balloon is provided with reinforcing ribs;
the zero pressure balloon is made of polyethylene film and has no exhaust pipe structure.
According to the stratosphere double-ball serial flight system provided by the invention, the number of the air channel connecting components is multiple, and the air channel connecting components are sequentially and serially arranged between the overpressure balloon and the zero-pressure balloon.
According to a second aspect of the present invention there is provided a method of operation of a stratospheric dual ball tandem flight system as in any one of the first aspects of the present invention, the method of operation comprising:
during the daytime, the air in the zero-pressure balloon is guided into the overpressure balloon or the air is not conveyed, and the overpressure balloon and the zero-pressure balloon are lifted to a new equilibrium height in order to maintain the flying height unchanged;
at night, in order to maintain the flying height unchanged, the gas in the overpressure balloon is guided into the zero-pressure balloon, or no gas is conveyed, and the overpressure balloon and the zero-pressure balloon are lowered to a new equilibrium height.
According to one operation method provided by the invention, the operation method further comprises the following steps:
when the flying height of the overpressure balloon needs to be increased, guiding the gas in the overpressure balloon to the zero-pressure balloon, so that the volume of the zero-pressure balloon is increased;
when the flying height of the nacelle is required to be increased, the winch is utilized to shrink the bearing rope in the gas circuit connecting assembly, so that the distance between the overpressure balloon and the zero-pressure balloon is reduced, and the heights of the zero-pressure balloon and the nacelle are increased;
when the flying height of the overpressure balloon needs to be reduced, guiding the gas in the zero-pressure balloon into the overpressure balloon, so that the volume of the zero-pressure balloon is reduced;
when the flying height of the nacelle needs to be reduced, the winch is utilized to release the bearing rope in the gas circuit connecting assembly, so that the distance between the overpressure balloon and the zero-pressure balloon is increased, and the heights of the zero-pressure balloon and the nacelle are reduced.
According to one operation method provided by the invention, the operation method further comprises the following steps:
when the pressure of the overpressure balloon is too high, the fan is difficult to compress the gas in the zero-pressure balloon into the overpressure balloon, and in the gas circuit connecting assembly, the winch is used for releasing the bearing rope, so that the distance between the overpressure balloon and the zero-pressure balloon is increased, the pressure of the gas in the gas transmission pipeline is increased, and the fan is easy to compress the gas from the zero-pressure balloon into the overpressure balloon.
The stratosphere double-balloon serial flight system provided by the invention comprises an overpressure balloon, a zero-pressure balloon, a gas circuit connecting assembly and a nacelle, wherein the overpressure balloon and the zero-pressure balloon are connected up and down through the gas circuit connecting assembly and can realize fluid communication, the zero-pressure balloon has enough load capacity, the overpressure balloon has enough pressure resistance, in the flight process, the gas in the zero-pressure balloon can be pumped into the overpressure balloon according to the requirement, or the gas in the overpressure balloon can be pumped into the zero-pressure balloon, and finally, the flight system can stably fly for a long time in the stratosphere and can automatically adjust the height. Therefore, the flight system can fully utilize the advantages of strong overpressure balloon pressure resistance and strong zero pressure balloon load capacity, realize high load on a stratosphere and flexibly and conveniently adjust the height position according to the use requirement.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a stratospheric dual-ball tandem flight system in accordance with one embodiment of the invention;
FIG. 2 is a flow chart of a method of operation of a stratospheric dual ball tandem flight system in accordance with one embodiment of the invention;
fig. 3 is yet another flow chart of a method of operation of a stratospheric dual ball tandem flight system in accordance with one embodiment of the invention.
Reference numerals:
1. an overpressure balloon; 2. a zero pressure balloon; 3. a nacelle; 4. a cable; 5. a valve; 6. a blower; 7. an overpressure buffer balloon; 8. a gas line; 9. a load-bearing rope; 10. and (5) a winch.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In one embodiment according to the present invention, there is provided a stratospheric double-balloon tandem flight system including an overpressure balloon and a zero-pressure balloon arranged in tandem, the zero-pressure balloon being connected below the overpressure balloon, the gas inside the overpressure balloon and the gas inside the zero-pressure balloon being circulated according to elevation requirements of altitude or temperature changes at daytime and evening, it being possible to conveniently achieve flight altitude adjustment, and to carry a load of a certain weight. The stratospheric double-ball tandem flight system and the method of operation thereof in this embodiment are further described below with reference to fig. 1 to 3.
Specifically, as shown in fig. 1, the stratospheric double-ball tandem flight system in the present embodiment includes: an overpressure balloon 1, a zero pressure balloon 2, an air path connection assembly and a nacelle 3.
The overpressure balloon 1 is arranged above the zero-pressure balloon 2, the overpressure balloon 1 and the zero-pressure balloon 2 are connected with each other through a gas circuit connecting assembly, the overpressure balloon 1 can be in fluid communication with the zero-pressure balloon 2 through the gas circuit connecting assembly, and the nacelle 3 is connected to the bottom of the zero-pressure balloon 2.
It will be appreciated that the overpressure balloon 1 is of a spherical configuration with a volume, having a closed containment cavity inside. When the overpressure balloon 1 is flown in high altitude, the accommodating chamber stores gas with a pressure higher than that of the external environment, and the overpressure balloon 1 can provide sufficient loading capacity.
The zero-pressure balloon 2 has a spherical structure with a certain volume, a containing cavity is arranged in the zero-pressure balloon 2, and an opening which can enable the containing cavity to be communicated with the external environment is arranged at the bottom of the zero-pressure balloon 2. When the zero-pressure balloon 2 flies in high altitude, gas can be stored in the accommodating cavity of the zero-pressure balloon 2, and the buoyancy of the zero-pressure balloon 2 can be changed by adjusting the gas quantity in the accommodating cavity, so that the flying height can be adjusted.
In the present embodiment, the overpressure balloon 1 and the zero-pressure balloon 2 are connected in series via an air path connection assembly, and the overpressure balloon 1 is located above the zero-pressure balloon 2. The nacelle 3 may be connected to the bottom of the zero-pressure balloon 2 by means of a cable 4, in which nacelle 3 electrical equipment for performing tasks such as observation, experimentation and communication may be placed.
Further, the overpressure balloon 1 and the zero pressure balloon 2 may be in fluid communication by means of a gas circuit connection assembly. In actual use, the gas in the overpressure balloon 1 can be pumped into the zero-pressure balloon 2 or the gas in the zero-pressure balloon 2 can be pumped into the overpressure balloon 1 according to the use requirement.
Illustratively, during the daytime, the temperature of the stratosphere rises, the sun is shining on the zero-pressure balloon 2, the gas temperature within the zero-pressure balloon 2 rises and expands, the volume of the zero-pressure balloon 2 becomes large, and the buoyancy becomes large, at which time the entire flight system will rise if not treated.
Under the condition, when the height of the whole flying system is required to be kept unchanged, the gas in the zero-pressure balloon 2 can be pumped into the overpressure balloon 1 by means of the gas circuit connecting assembly, so that the volume of the zero-pressure balloon 2 is not increased any more, the buoyancy generated by the zero-pressure balloon 2 is controlled, and the height of the whole flying system is maintained.
When the height of the whole flight system needs to be reduced, the gas in the zero-pressure balloon 2 can be pumped into the overpressure balloon 1 by means of the gas circuit connecting assembly, so that the volume of the zero-pressure balloon is reduced, the buoyancy generated by the zero-pressure balloon is reduced, and the whole flight system is lowered.
When the height of the whole flight system is required to rise, the zero-pressure balloon can be not treated, or the gas in the overpressure balloon 1 can be pumped into the zero-pressure balloon 2 by means of the gas circuit connecting assembly, so that the volume of the zero-pressure balloon 2 is increased, the buoyancy generated by the zero-pressure balloon 2 is increased, and the whole flight system naturally rises.
At night, the temperature of the stratosphere is reduced, the temperature of the gas in the zero-pressure balloon 2 is reduced, the gas in the zero-pressure balloon 2 is contracted, the volume of the zero-pressure balloon 2 is reduced, the buoyancy generated by the zero-pressure balloon is synchronously reduced, and at the moment, if the buoyancy is not treated, the whole flight system is reduced.
Under the condition, when the height of the whole flying system is required to be kept unchanged, the gas in the overpressure balloon 1 can be pumped into the zero-pressure balloon 2 by means of the gas circuit connecting assembly, so that the volume of the zero-pressure balloon is not reduced any more, the buoyancy generated by the zero-pressure balloon is controlled, and the height of the whole flying system is maintained.
When the height of the whole flight system is required to rise, the gas in the overpressure balloon 1 can be pumped into the zero-pressure balloon 2 by means of the gas circuit connecting assembly, so that the volume of the zero-pressure balloon 2 is increased, the buoyancy generated by the zero-pressure balloon 2 is increased, and the whole flight system rises.
When the height of the whole flight system is required to be lowered, the zero-pressure balloon can be not treated, or the gas in the zero-pressure balloon 2 can be pumped into the overpressure balloon 1 by means of the gas circuit connecting assembly, so that the volume of the zero-pressure balloon 2 is reduced, the buoyancy generated by the zero-pressure balloon 2 is reduced, and the whole flight system is naturally lowered.
It will be appreciated that in the present embodiment, the amount of gas inside the overpressure balloon 1 varies and the diurnal temperature difference varies, but the gas pressure inside the overpressure balloon 1 is higher than the external environment, and the volume of the overpressure balloon 1 is unchanged, which has a sufficient pressure-resistant capability. The gas amount in the zero-pressure balloon 2 can be changed, the volume of the zero-pressure balloon can be changed along with the change of the day-night temperature difference, and the buoyancy generated by the zero-pressure balloon 2 can be changed by changing the gas amount in the zero-pressure balloon 2, so that the flying height of the whole flying system can be adjusted. Furthermore, the zero pressure balloon 2 gives the whole flight system sufficient load capacity.
Therefore, the stratosphere double-ball serial flight system in the embodiment can fully utilize the advantages of strong overpressure balloon pressure resistance and strong zero pressure balloon load capacity, realize high load on the stratosphere, and flexibly and conveniently adjust the height position according to the use requirement.
Further, in the present embodiment, as shown in fig. 1, the gas path connection assembly includes a valve 5, a blower 6, an overpressure buffer airbag 7, and a gas pipe 8.
The overpressure buffer air bag 7 is arranged between the overpressure air bag 1 and the zero-pressure air bag 2, the top of the overpressure buffer air bag 7 is communicated with the overpressure air bag 1 through a valve 5 and a fan 6, and the bottom of the overpressure buffer air bag 7 is communicated with the zero-pressure air bag 2 through a gas pipeline 8.
Illustratively, the valve 5 is used as an opening of the overpressure balloon 1, which can act as a sealing function on the overpressure balloon 1, and in a normal flight state, the valve 5 is always in a closed state, and when the amount of gas in the overpressure balloon 2 needs to be regulated, the valve 5 can be in an open state, so that the gas in the overpressure balloon 1 is pumped into the overpressure balloon 2 or the gas in the overpressure balloon 2 is pumped into the overpressure balloon 1 under the action of the fan 6.
The overpressure buffer air bag 7 is of a cavity structure with a certain accommodating cavity, the bottom of the overpressure buffer air bag 7 can be communicated to the zero-pressure balloon 2 through the gas pipeline 8, and the gas in the overpressure buffer air bag 7 is always in an overpressure state due to a certain distance between the overpressure buffer air bag 7 and the zero-pressure balloon 2.
In actual use, if the gas in the zero-pressure balloon 2 is required to be pumped into the overpressure balloon 1, the air blower 6 can more easily pump the gas into the overpressure balloon 1 at this time because the gas in the overpressure buffer air bag 7 is always in an overpressure state, so that the energy consumption of the air blower can be reduced, and the cruising ability of the whole flight system is further improved.
Further, in the present embodiment, the air path connection assembly further includes a load rope 9 and a winch 10. The winch 10 is fixedly connected to the overpressure buffer airbag 7, one end of the load-bearing rope 9 is fixedly connected to the top of the zero-pressure balloon 2, the other end is connected to the winch 10, and the winch 10 can retract the load-bearing rope 9.
It will be appreciated that the overpressure buffer bladder 7 is directly connected to the zero pressure balloon 2, the greater the distance between the overpressure buffer bladder 7 and the zero pressure balloon 2, the greater the gas pressure within the overpressure buffer bladder 7. By providing the load-carrying rope 9 and the winch 10, the distance between the overpressure buffer envelope 7 and the zero-pressure balloon 2 can be adjusted.
Illustratively, in actual use, if it is desired to draw gas within the zero pressure balloon 2 into the overpressure balloon 1, the winch 10 may be allowed to release the load cable 9, such that the gas pressure within the overpressure buffer envelope 7 increases, allowing the blower 6 to draw gas into the overpressure balloon 1 with lower energy consumption.
Then, during normal flight, the winch 10 can be allowed to recover the load rope 9, bringing the zero-pressure balloon 2 and the overpressure balloon 1 close to each other. Of course, it is also possible to let the winch 10 release the load rope 9 so that there is sufficient distance between the zero pressure balloon 2 and the overpressure balloon 1, depending on the control requirements of the flight trajectory.
Alternatively, the overpressure buffer envelope 7 may be fixedly mounted to the bottom of the overpressure balloon 1 by means of a fixture, in which case the winch 10 may be fixed to the overpressure buffer envelope 7 by means of a support.
Further, the gas line 8 may be configured as a telescopic line that can be contracted in the length direction thereof. Thus, the gas pipe 8 can be extended and contracted simultaneously during the process of winding and unwinding the load rope 9 by the winch 10. Therefore, on one hand, the normal circulation of gas in the gas transmission pipeline 8 is ensured, leakage cannot occur, and on the other hand, the gas transmission pipeline 8 can be automatically stored, so that the space is saved.
Further, the number of the load-bearing ropes 9 may be plural, and the plural load-bearing ropes 9 are sequentially arranged at intervals along the circumferential direction of the gas pipe 8. Because the gas pipeline 8 is a telescopic pipeline, when the gas pipeline 8 contracts, the plurality of bearing ropes 9 can be supported from the peripheral side of the gas pipeline 8, so that the gas pipeline 8 is prevented from bulging from the side part, and the gas pipeline 8 is ensured to stretch and retract in the length direction all the time.
Illustratively, the number of load carrying ropes 9 may be four to eight, and each load carrying rope 9 may be provided with a winch 10 in a one-to-one correspondence, or one winch 10 may be common to a plurality of load carrying ropes 9.
In this embodiment, the flight system further includes a pressure sensor disposed at the bottom of the zero-pressure balloon 2, the pressure sensor being configured to sense the pressure of the zero-pressure balloon 2.
It will be appreciated that during normal flight, the zero pressure balloon 2 in the flight system needs to be always in a non-pressurized or weakly pressurized state. Under daytime sun irradiation, the temperature of the gas in the zero-pressure balloon 2 can rise, the gas can expand, the volume of the zero-pressure balloon 2 can be increased, buoyancy is increased finally, the height position of the whole flight system can be possibly changed, at this time, the pressure of the zero-pressure balloon is sensed by arranging a pressure sensor at the bottom of the zero-pressure balloon 2, prompt information can be sent to the valve 5 and the fan 6 when the pressure of the gas in the zero-pressure balloon 2 is sensed, so that the valve 5 is opened, the fan 6 starts to suck the gas in the zero-pressure balloon 2 into the overpressure balloon 1, the zero-pressure balloon 2 is in a non-pressure or weak pressure-bearing state, buoyancy stability is guaranteed, and height change is avoided.
In one embodiment, the overpressure balloon 1 is manufactured from a composite material and the outside of the overpressure balloon 1 is provided with stiffening ribs. The overpressure balloon 1 can thus withstand a certain pressure in the case of an overpressure of the gas in its interior and can maintain a certain shape.
In one embodiment, the zero pressure balloon 2 is made of polyethylene film and is of a tailless construction, with weaker pressure resistance. Thus, the sphere weight of the zero pressure balloon can be small enough and can generate a net buoyancy large enough to provide sufficient load capacity.
Further, the number of the air channel connecting components can be multiple, and the air channel connecting components are sequentially and serially arranged between the overpressure balloon 1 and the zero-pressure balloon 2.
It will be appreciated that, in the adjacent gas circuit connection assemblies, the gas pipe 8 in the gas circuit connection assembly located above may be connected to the valve 5 in the gas circuit connection assembly located below, and since each gas circuit connection assembly is provided with the blower 6 and the overpressure buffer air bag 7, each overpressure buffer air bag 7 is capable of retaining the gas in an overpressure state, at this time, in the vertical direction, the plurality of gas circuit connection assemblies may provide pressure differences step by step, so that the gas may be conveniently transferred between the overpressure balloon 1 and the zero-pressure balloon 2.
As described above, in the present embodiment, there is also provided an operation method for the stratospheric double-ball tandem flight system, by which the flight state of the flight system in the stratosphere can be effectively controlled.
Specifically, as shown in fig. 2, the operation method in the present embodiment includes:
s11: during the daytime, the air in the zero-pressure balloon is guided into the overpressure balloon or the air is not conveyed, and the overpressure balloon and the zero-pressure balloon are lifted to a new equilibrium height in order to maintain the flying height unchanged;
s12: at night, in order to maintain the flying height unchanged, the gas in the overpressure balloon is guided into the zero-pressure balloon, or no gas is conveyed, and the overpressure balloon and the zero-pressure balloon are lowered to a new equilibrium height.
It can be understood that when the flight system is in normal flight on the stratosphere in daytime, solar energy can directly irradiate on the zero-pressure balloon 2, the temperature of the gas in the zero-pressure balloon 2 is increased in the flight process of the flight system, the gas in the zero-pressure balloon 2 is expanded, the volume of the zero-pressure balloon 2 is increased, the buoyancy is increased, the pressure sensor can sense the pressure increase of the gas in the zero-pressure balloon 2 at the moment, in order to ensure the stable flight of the flight system, the gas in the zero-pressure balloon 2 needs to be pumped into the overpressure balloon 1 by the fan 6, so that the gas in the zero-pressure balloon 2 is kept in a non-pressure or weak pressure state, the volume of the zero-pressure balloon 2 is kept unchanged, the buoyancy generated by the zero-pressure balloon is controlled, and the flight height of the whole flight system is maintained.
Or, the valve 5 may not be opened, the gas in the zero-pressure balloon 2 is not conveyed to the overpressure balloon 1, at this time, the volume of the zero-pressure balloon 2 is increased, the buoyancy is increased, the overpressure balloon and the zero-pressure balloon will rise, in the rising process, the buoyancy of the overpressure balloon 1 will correspondingly increase due to the reduction of the atmospheric density, and when the buoyancy reduction of the overpressure balloon 1 is the same as the buoyancy increase of the zero-pressure balloon 2, a new equilibrium height is reached, and at this time, the flight system can fly at the new equilibrium height.
When the flight system flies normally at the stratosphere at night, the temperature of the stratosphere is reduced, the temperature of the gas in the zero-pressure balloon 2 is reduced in the flight process of the flight system, the gas in the zero-pressure balloon 2 is contracted, the volume of the zero-pressure balloon 2 is reduced, the buoyancy is reduced, and at the moment, in order to ensure the flight system, the gas in the overpressure balloon 1 needs to be pumped into the zero-pressure balloon 2 by a fan 6, so that the gas in the zero-pressure balloon 2 has a certain amount, the volume of the zero-pressure balloon 2 is kept unchanged, and the buoyancy generated by the zero-pressure balloon 2 is controlled, thereby maintaining the height of the whole flight system.
Of course, in practice, the valve 5 may not be opened, so that the zero-pressure balloon 2 and the overpressure balloon 1 may be lowered simultaneously, in the lowering process, the buoyancy of the overpressure balloon 1 may be correspondingly increased due to the increase of the atmospheric density, and when the buoyancy increase of the overpressure balloon 1 is the same as the buoyancy decrease of the zero-pressure balloon 2, a new equilibrium height is reached, and at this time, the flight system may fly at the new equilibrium height.
For example, a temperature sensor may be provided in the zero-pressure balloon 2, by means of which the pressure state of the gas inside the zero-pressure balloon 2 is sensed.
Further, in this embodiment, as shown in fig. 3, the operation method further includes:
s21: when the flying height of the overpressure balloon needs to be increased, guiding the gas in the overpressure balloon to the zero-pressure balloon, so that the volume of the zero-pressure balloon is increased;
s22: when the flying height of the nacelle is required to be increased, the winch is utilized to shrink the bearing rope in the gas circuit connecting assembly, so that the distance between the overpressure balloon and the zero-pressure balloon is reduced, and the heights of the zero-pressure balloon and the nacelle are increased;
s23: when the flying height of the overpressure balloon needs to be reduced, guiding the gas in the zero-pressure balloon into the overpressure balloon, so that the volume of the zero-pressure balloon is reduced;
s24: when the flying height of the nacelle needs to be reduced, the winch is utilized to release the bearing rope in the gas circuit connecting assembly, so that the distance between the overpressure balloon and the zero-pressure balloon is increased, and the heights of the zero-pressure balloon and the nacelle are reduced.
It will be appreciated that if it is desired to raise or lower the altitude of the entire flight system, whether in the daytime or at night, it is necessary to change the volume of the zero pressure balloon 2 to change the magnitude of its buoyancy and thus the altitude of the entire flight system.
Illustratively, if the flying height of the overpressure balloon 1 needs to be raised, the air in the overpressure balloon 1 can be pumped into the zero-pressure balloon 2 by using the blower 6 in the state that the valve 5 is opened, so that the volume of the zero-pressure balloon 2 is increased, the buoyancy thereof is increased, and the overpressure balloon 1 is raised. At this time, the distance between the overpressure balloon 1 and the zero-pressure balloon 2 is not changed, and the zero-pressure balloon 2 and the pod 3 rise as the overpressure balloon 1 rises.
If the flying height of the nacelle 3 needs to be raised, the distance between the overpressure balloon 1 and the zero-pressure balloon 2 can be reduced by the air path connection assembly, for example, as shown in fig. 1, the winch 10 can be used for contracting the bearing rope 9, and the height of the nacelle 3 will be raised under the buoyancy of the overpressure balloon 1. At this time, the gas inside the overpressure balloon 1 and the zero-pressure balloon 2 is not changed, and both the zero-pressure balloon 2 and the pod 3 rise.
Accordingly, if the flying height of the overpressure balloon 1 needs to be lowered, the air in the zero-pressure balloon 2 can be pumped into the overpressure balloon 1 by using the fan 6 under the state that the valve 5 is opened, so that the volume of the zero-pressure balloon 2 is reduced, the buoyancy of the zero-pressure balloon is reduced, and the overpressure balloon 1 is lowered. The distance between the overpressure balloon 1 and the zero-pressure balloon 2 is not changed at this time, and the zero-pressure balloon 2 and the pod 3 are lowered as the overpressure balloon 1 is lowered.
If the flying height of the nacelle 3 needs to be lowered, the distance between the overpressure balloon 1 and the zero-pressure balloon 2 can be increased through the air path connection assembly, for example, as shown in fig. 1, the winch 10 can be used for releasing the bearing rope 9, and the height of the nacelle 3 can be lowered under the buoyancy of the overpressure balloon 1. At this time, the gas inside the overpressure balloon 1 and the zero-pressure balloon 2 is not changed, and both the zero-pressure balloon 2 and the pod 3 are lowered.
In actual use, since the high-altitude atmosphere is relatively thin, if the zero-pressure balloon 2 and the overpressure balloon 1 are directly connected in series during the process of transmitting the gas in the zero-pressure balloon 2 to the overpressure balloon 1, the blower 6 needs to be operated with a great power to compress the gas from the zero-pressure balloon 2 into the overpressure balloon 1, and the efficiency of the blower 6 is low. Moreover, when the pressure in the overpressure balloon 1 is relatively large, it is more difficult to achieve gas pressurization or the efficiency is low.
Based on this, the operation method of the present embodiment further includes:
when the pressure of the overpressure balloon is too high, the fan is difficult to compress the gas in the zero-pressure balloon into the overpressure balloon, and in the gas circuit connecting assembly, the winch is used for releasing the bearing rope, so that the distance between the overpressure balloon and the zero-pressure balloon is increased, the pressure of the gas in the gas transmission pipeline is increased, and the fan is easy to compress the gas from the zero-pressure balloon into the overpressure balloon.
Illustratively, in the present embodiment, the length of the gas pipe 8 between the zero-pressure balloon 2 and the overpressure balloon 1 is long, which may reach hundreds of meters or even up to thousands of meters, and after the winch 10 is used to release the load rope 9, a free pressure caused by the height of the gas column can be formed, and when the overpressure balloon 1 is under excessive pressure, the blower 6 is difficult to compress the gas in the zero-pressure balloon 2 into the overpressure balloon 1, the pressure of the blower 6 can be reduced by virtue of the free pressure formed in the gas pipe 8, so that the blower 6 can compress the gas in the zero-pressure balloon 2 into the overpressure balloon 1 more easily.
Thus, the stratospheric double-ball tandem flight system in this embodiment has the following advantages:
the stratosphere double-balloon series flight system in the embodiment comprises an overpressure balloon, a zero-pressure balloon, an air passage connecting assembly and a nacelle, wherein the overpressure balloon and the zero-pressure balloon are connected up and down through the air passage connecting assembly and can realize fluid communication, the zero-pressure balloon has enough load capacity, the overpressure balloon has enough pressure resistance, in the flight process, gas in the zero-pressure balloon can be pumped into the overpressure balloon according to requirements, or gas in the overpressure balloon can be pumped into the zero-pressure balloon, and finally the flight system can stably fly for a long time in the stratosphere and can automatically adjust the height. Therefore, the flight system in the embodiment can fully utilize the advantages of strong overpressure balloon pressure resistance and strong zero pressure balloon load capacity, realize high load on a stratosphere and flexibly and conveniently adjust the height position according to the use requirement.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A stratospheric double-ball tandem flight system, comprising: the system comprises an overpressure balloon, a zero-pressure balloon, an air passage connecting assembly and a pod, wherein the overpressure balloon is arranged above the zero-pressure balloon, the overpressure balloon and the zero-pressure balloon are mutually connected through the air passage connecting assembly, the overpressure balloon can be in fluid communication with the zero-pressure balloon through the air passage connecting assembly, and the pod is connected to the bottom of the zero-pressure balloon.
2. The stratospheric double-ball tandem flight system of claim 1, wherein the gas circuit connection assembly comprises a valve, a fan, an overpressure buffer bladder and a gas transfer pipe, the overpressure buffer bladder is disposed between the overpressure balloon and the zero pressure balloon, a top of the overpressure buffer bladder is communicated to the overpressure balloon via the valve and the fan, and a bottom of the overpressure buffer bladder is communicated to the zero pressure balloon via the gas transfer pipe.
3. The stratospheric double-ball tandem flight system of claim 2, wherein the gas circuit connection assembly further comprises a load rope and a winch, the winch is fixedly connected to the overpressure buffer airbag, one end of the load rope is fixedly connected to the top of the zero-pressure balloon, the other end is connected to the winch, and the winch is capable of retracting the load rope.
4. The stratospheric dual-ball tandem flight system of claim 3, wherein the gas delivery conduit is configured as a telescoping conduit that can retract along its length.
5. The stratospheric double-ball tandem flight system of claim 3, wherein the number of the load-bearing ropes is plural, and the plural load-bearing ropes are sequentially arranged at intervals along the circumferential direction of the gas pipeline.
6. The stratospheric double-ball tandem flight system of claim 1, wherein the overpressure balloon is fabricated from a composite material and externally provided with reinforcing ribs;
the zero pressure balloon is made of polyethylene film and has no exhaust pipe structure.
7. The stratospheric double-ball serial flight system of claim 1, wherein the number of gas path connection assemblies is plural, and a plurality of the gas path connection assemblies are sequentially arranged in series between the overpressure balloon and the zero-pressure balloon.
8. A method of operating the stratospheric dual-ball tandem flight system of any one of claims 1 to 7, characterized in that the method of operation comprises:
during the daytime, the air in the zero-pressure balloon is guided into the overpressure balloon or the air is not conveyed, and the overpressure balloon and the zero-pressure balloon are lifted to a new equilibrium height in order to maintain the flying height unchanged;
at night, in order to maintain the flying height unchanged, the gas in the overpressure balloon is guided into the zero-pressure balloon, or no gas is conveyed, and the overpressure balloon and the zero-pressure balloon are lowered to a new equilibrium height.
9. The stratospheric dual-ball tandem flying system of claim 8, wherein the method of operation further comprises:
when the flying height of the overpressure balloon needs to be increased, guiding the gas in the overpressure balloon to the zero-pressure balloon, so that the volume of the zero-pressure balloon is increased;
when the flying height of the nacelle is required to be increased, the winch is utilized to shrink the bearing rope in the gas circuit connecting assembly, so that the distance between the overpressure balloon and the zero-pressure balloon is reduced, and the heights of the zero-pressure balloon and the nacelle are increased;
when the flying height of the overpressure balloon needs to be reduced, guiding the gas in the zero-pressure balloon into the overpressure balloon, so that the volume of the zero-pressure balloon is reduced;
when the flying height of the nacelle needs to be reduced, the winch is utilized to release the bearing rope in the gas circuit connecting assembly, so that the distance between the overpressure balloon and the zero-pressure balloon is increased, and the heights of the zero-pressure balloon and the nacelle are reduced.
10. The stratospheric dual-ball tandem flying system of claim 8, wherein the method of operation further comprises:
when the pressure of the overpressure balloon is too high, the fan is difficult to compress the gas in the zero-pressure balloon into the overpressure balloon, and in the gas circuit connecting assembly, the winch is used for releasing the bearing rope, so that the distance between the overpressure balloon and the zero-pressure balloon is increased, the pressure of the gas in the gas transmission pipeline is increased, and the fan is easy to compress the gas from the zero-pressure balloon into the overpressure balloon.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311714089.3A CN117682039A (en) | 2023-12-13 | 2023-12-13 | Stratosphere double-ball series flight system and operation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311714089.3A CN117682039A (en) | 2023-12-13 | 2023-12-13 | Stratosphere double-ball series flight system and operation method thereof |
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| CN117682039A true CN117682039A (en) | 2024-03-12 |
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| CN202311714089.3A Pending CN117682039A (en) | 2023-12-13 | 2023-12-13 | Stratosphere double-ball series flight system and operation method thereof |
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| Country | Link |
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| CN (1) | CN117682039A (en) |
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- 2023-12-13 CN CN202311714089.3A patent/CN117682039A/en active Pending
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