CN113148100B

CN113148100B - Double-layer balloon energy-saving safe hot air balloon aircraft

Info

Publication number: CN113148100B
Application number: CN202110554149.4A
Authority: CN
Inventors: 徐杰; 陆新江; 徐健
Original assignee: Central South University
Current assignee: Central South University
Priority date: 2021-05-20
Filing date: 2021-05-20
Publication date: 2022-11-08
Anticipated expiration: 2041-05-20
Also published as: CN113148100A

Abstract

The invention discloses a double-layer balloon energy-saving safe hot air balloon aircraft which comprises an inner balloon, a hanging basket and a heater, wherein the hanging basket is connected with the inner balloon through a hanging rope, an outer balloon is arranged on the outer layer of the inner balloon, a sealed cavity is formed between the inner balloon and the outer balloon, an air valve used for being communicated with the outer balloon is arranged on the surface of the inner balloon after penetrating through the inner balloon, the heater is arranged at a heating port formed below the inner balloon and the outer balloon, an air outlet is formed in the upper ends of the inner balloon and the outer balloon in a penetrating mode, an air exhaust valve umbrella used for blocking the air outlet is arranged inside the inner balloon, and the air exhaust valve umbrella is in transmission connection with a control rope. The invention can reduce the heat convection radiation of the saccule and the heat transfer coefficient of the heat conductivity, thereby reducing the loss of the heat convection radiation, and keeping the temperature difference between the inside and the outside for a longer time by keeping the heat in the saccule to realize the stable flight in the air.

Description

Double-layer balloon energy-saving safe hot air balloon aircraft

Technical Field

The invention relates to the technical field of hot-air balloon aircrafts, in particular to a double-layer balloon energy-saving safety hot-air balloon aircraft.

Background

The hot air balloon is a balloon using hot air as buoyancy gas, and experimental research data show that about 70-90% of heat loss of the hot air balloon is caused by heat convection heat radiation loss of a huge balloon, and the rest part of heat loss is caused by heat convection radiation escape of a heating port.

CN105905270A discloses a carbon fiber fire balloon, which is mainly characterized in that a battery and a carbon fiber conductive heating principle are adopted as a fire balloon power source. The hot air balloon has large balloon area, the heating carbon fiber is attached to the balloon, and the radiation heat to the outside atmosphere is increased while the inside air is heated; the effective flight travel of the battery is lower than that of fossil raw materials under the same weight, the environmental temperature is low in high altitude, and the effective energy of the battery is reduced.

CN109398673A discloses an energy-saving fire balloon, which is mainly characterized in that the outer layer is used as a cold air inlet and is preheated in advance by hot air before entering a burner port, but the large chimney and a heat exchanger which are bulky under the premise of limited fire balloon payload can greatly increase the fire balloon load so as to reduce the payload, and the inner and outer balloons are made of soft textile fabric materials so that the inner and outer balloons can not work as an air inlet channel as a rigid structure during takeoff (the air-fuel ratio of combustible gas fuel is greater than 20, the air flow velocity of the inlet air in the outer balloon is fast under the action of the internal and external fluids, so that the outer balloon and the inner balloon are attached together by external atmospheric pressure to affect air inlet or not burn sufficiently to waste fuel).

CN108248810A discloses an energy-saving fire balloon, which is mainly characterized in that on the basis that the top of a balloon of a common fire balloon is provided with an exhaust hole and a designed small umbrella seals an air outlet, an opening frustum is designed at the upper end of the exhaust hole, the small umbrella is provided with a small umbrella sealing frustum, the small umbrella sealing frustum is embedded into the exhaust hole opening to plug the exhaust hole, and the sealing effect is enhanced by adding one-time sealing, so that the heat loss is reduced.

However, the existing hot air balloon has the following defects that (1) the energy efficiency of the battery is reduced or even fails at high altitude or low temperature; (2) The hot air balloon has a large balloon volume, more than half of heat loss is caused by heat radiation of the balloon, the air-fuel ratio of combustible gas is more than 20, a large amount of air is needed during combustion, the air flow rate of the outer balloon serving as an air inlet channel is high, and the heat radiation of the inner balloon is accelerated by rapid air convection; the large chimney and the heat exchanger can greatly increase the load of the fire balloon, and the air flow speed of the air entering the outer bag is high under the action of the fluid inside and outside, so that the outer bag and the inner bag (flexible material) are attached together due to the pressure difference between the inside and the outside to influence air entering or waste fuel due to insufficient combustion; (3) The sealing mode is mainly reinforced to the air outlet to reduce heat leakage from the hole to save energy, and the heat convection heat radiation loss in the hot air balloon in the prior art causes poor heat insulation effect, cannot keep the temperature difference inside and outside the balloon for a long time, and thus cannot stably fly in the air.

Disclosure of Invention

The invention aims to solve the technical problems to a certain extent and provides the double-layer sacculus energy-saving safe fire balloon aircraft which can reduce sacculus heat convection radiation and heat conductivity heat transfer coefficient, thereby reducing heat convection radiation loss, keeping heat preservation in the sacculus for a longer time, and keeping the temperature difference between the inside and the outside to realize stable flight in the air.

The technical scheme adopted by the invention for solving the technical problem is as follows: the utility model provides an energy-conserving safe type hot air balloon aircraft of double-deck sacculus, includes interior sacculus, hanging flower basket, heater, the hanging flower basket is connected through the lifting rope with interior sacculus, interior sacculus is outer still to be equipped with outer sacculus, interior sacculus with form sealed cavity between the outer sacculus, interior sacculus pass through its surface be equipped with be used for with the pneumatic valve of outer sacculus intercommunication, the heater is located the heating port department that interior sacculus and outer sacculus below formed, the hot air flow that the heater heating burning produced passes through the pneumatic valve that interior sacculus set up enters into in the sealed cavity, make interior sacculus and outer sacculus all are full of the hot air flow to be used for reducing interior sacculus heat convection radiation and reduce heat convection through sealed cavity storage hot air flow, interior sacculus and outer sacculus upper end run through and be equipped with the air current export, the inside discharge valve umbrella that is used for plugging up the air current export that is equipped with of interior sacculus, discharge valve is connected with the control rope transmission.

Preferably, the surface of the inner balloon is provided with at least two air valves.

Preferably, the air valve is also connected with an air pipe of an external inflating device.

Preferably, the outer balloon is further connected with a closed balloon.

Preferably, one end of the control rope is connected with the exhaust valve umbrella, and the other end of the control rope is connected with the inner surface of the inner ball bag and extends outwards to the position of the hanging basket.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:

the invention adopts a double-layer sacculus redundant buoyancy double-insurance design mode, and sets out to reduce sacculus heat convection radiation and heat conductivity heat transfer coefficient so as to reduce heat convection radiation loss, wherein a non-closed inner sacculus is used as a traditional hot air balloon structure to carry out stable flight operation, a closed outer sacculus is adopted, a sealed cavity formed between the outer sacculus and the inner sacculus is used as a transition greenhouse effect layer to reduce inner and outer heat convection radiation, meanwhile, the outer sacculus can be used as an independent closed lifesaving sacculus when descending, and can be used as stable buoyancy when descending, so that the descending landing impact feeling caused by overlarge exhaust is reduced, the safety during flight and descending is improved, further, a heater is filled in the sealed cavity to heat carbon dioxide generated by combustion as a medium for closing the outer sacculus, the greenhouse effect is achieved, the gas heat transfer coefficient of the carbon dioxide is about half of the air, and the heat loss of the inner sacculus can be better reduced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

In the drawings:

FIG. 1 is a structural diagram of a double-layer balloon energy-saving safety hot-air balloon aircraft of the invention;

fig. 2 is a structural diagram of the double-layer balloon energy-saving safe hot-air balloon aircraft.

Reference numerals: 1-an inner balloon; 2-hanging baskets; 3-a heater; 4-an outer balloon; 5-sealing the cavity; 6-an air valve; 7-heating port; 8-an airflow outlet; 9-exhaust valve umbrella; 10-steering ropes.

Detailed Description

For a more clear understanding of the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, it is to be understood that the orientations and positional relationships indicated by the terms "front", "rear", "upper", "lower", "left", "right", "longitudinal", "lateral", "vertical", "horizontal", "top", "bottom", "inner", "outer", "leading", "trailing", and the like are configured and operated in specific orientations based on the orientations and positional relationships shown in the drawings, and are only for convenience of description of the present technical solution, but do not indicate that the device or element referred to must have a specific orientation, and thus, cannot be construed as limiting the present invention.

It should also be noted that, unless expressly specified or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are to be construed broadly and encompass, for example, fixed connections as well as removable connections or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or intervening elements may also be present. The terms "first", "second", "third", etc. are only for convenience in describing the present technical solution, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the following description, for purposes of explanation and not limitation, specific details are set forth such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

As shown in fig. 1-2, the invention provides a double-layer balloon energy-saving safe hot air balloon aircraft, which comprises an inner balloon 1, a hanging basket 2 and a heater 3, wherein the hanging basket 2 is connected with the inner balloon 1 through a hanging rope, an outer balloon 4 is further arranged on the outer layer of the inner balloon 1, the inner balloon 1 is used as a traditional hot air balloon structure, a sealed cavity 5 is formed between the inner balloon 1 and the outer balloon 4, and the outer balloon 4 is further connected with a sealed balloon. Therefore, when the hot air balloon takes off, the hot air balloon rapidly takes off by the aid of the added closed balloon, the inner balloon 1 penetrates through the surface of the inner balloon and is provided with an air valve 6 communicated with the outer balloon 4, the surface of the inner balloon 1 is provided with at least two air valves 6, the air valve 6 is also connected with an air pipe of an external inflating device, so that when the hot air balloon takes off, the inner balloon can be inflated by the air valve 6 in a closed mode, the outer balloon 4 can be rapidly inflated to drive the inner balloon 1 to inflate, the heater 3 is arranged at a heating port 7 formed below the inner balloon 1 and the outer balloon 4, hot air generated by heating and burning of the heater 3 enters the sealed cavity 5 through the air valve 6 arranged on the inner balloon 1, the inner balloon 1 and the outer balloon 4 are both filled with the hot air, the hot air is stored in the sealed cavity 5 and used for reducing heat convection radiation and heat convection of the inner balloon 1, the upper ends of the inner balloon 1 and the outer balloon 4 are provided with an air outlet 8 in a penetrating way, the inner balloon 1 is internally provided with an air outlet valve 9 for blocking the air outlet valve 8, the umbrella 9 is connected with a control rope 10, and the inner surface of the umbrella is connected with the basket 2, and the umbrella.

The embodiment adopts a double-layer balloon redundant buoyancy double-insurance design mode, and sets out to reduce the thermal convection radiation and the thermal conductivity heat transfer coefficient of the balloon, thereby reducing the thermal convection radiation loss, wherein the non-closed inner balloon 1 is used as a traditional hot balloon structure for stable flight operation, and the closed outer balloon 4 is adopted, a sealed cavity 5 formed between the outer balloon and the inner balloon 1 is used as a transition greenhouse effect layer to reduce the internal and external thermal convection radiation, meanwhile, the outer balloon 4 can be used as an independent closed lifesaving balloon when descending, and can be used as stable buoyancy when descending, the falling impact feeling caused by overlarge exhaust is reduced, the safety during flight and descending is improved, further, a heater 3 is filled in the sealed cavity 5 to heat the carbon dioxide hot air generated by combustion as a medium for closing the outer balloon 4, the greenhouse effect is achieved, the gas heat transfer coefficient of the carbon dioxide is about half of the air, and the heat loss of the inner balloon can be reduced better.

The working principle is as follows: during takeoff, the heater 3 is heated, the exhaust valve umbrella 9 is closed, hot air generated by the heater 3 is exhausted into the inner balloon 1, when the inner balloon 1 is filled with the hot air, the air valve 6 at the position of the inner balloon 1 is opened, hot air products of combustion enter the sealed cavity 5 through the air valve 6, and at the moment, the inner balloon 1 is equivalent to a traditional hot air balloon structure and keeps flying; the outer balloon 4 is filled with closed thermal carbon oxide (the heat transfer coefficient of carbon dioxide gas is about half of that of air), the greenhouse effect can be well achieved, on one hand, the thermal convection radiation between the inner balloon 1 and the atmosphere is reduced through middle isolation, on the other hand, the thermal convection can also be reduced due to smaller conductivity, on the other hand, the exhaust valve umbrella 9 is opened by operating the control rope 10 during landing, so that the hot air flow of the inner balloon 1 is discharged into the atmosphere, the hot air balloon lands, at the moment, the outer balloon 4 serves as an independent closed lifesaving balloon (the buoyancy is designed according to the system load), and the landing impact feeling of descending due to the fact that the operation rope exhausts excessively can be reduced as stable buoyancy during landing.

It is to be understood that the foregoing examples, while indicating the preferred embodiments of the invention, are given by way of illustration and description, and are not to be construed as limiting the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several changes and modifications can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.

Claims

1. The utility model provides a double-deck sacculus energy-conserving safe type hot air balloon aircraft, includes interior sacculus, hanging flower basket, heater, the hanging flower basket is connected its characterized in that through the lifting rope with interior sacculus: the outer layer of the inner balloon is also provided with an outer balloon, a sealed cavity is formed between the inner balloon and the outer balloon, an air valve used for being communicated with the outer balloon is arranged on the surface of the inner balloon, the heater is arranged at a heating port formed below the inner balloon and the outer balloon, hot air generated by heating and burning of the heater enters the sealed cavity through the air valve arranged on the inner balloon, the inner balloon and the outer balloon are both filled with the hot air, the hot air is stored in the sealed cavity and used for reducing the heat convection radiation and the heat convection of the inner balloon, an air flow outlet is arranged at the upper ends of the inner balloon and the outer balloon in a penetrating mode, an exhaust valve umbrella used for blocking the air flow outlet is arranged inside the inner balloon, and the exhaust valve umbrella is in transmission connection with a control rope;

the surface of the inner saccule is provided with at least two air valves;

the air valve is also connected with an air pipe of an external inflating device;

the outer balloon is also connected with a closed balloon;

one end of the control rope is connected with the exhaust valve umbrella, and the other end of the control rope is connected with the inner surface of the inner ball bag and extends outwards to the position of the hanging basket.