Goods transportation airship

Abstract

The utility model provides a cargo transportation airship, which belongs to the technical field of traffic transportation and comprises an airship body, a helium chamber, a helium drainage device, an air bag, a first one-way valve and a second one-way valve. When the cargo transportation airship needs to descend, helium is pumped into the helium chamber through the helium pumping and releasing device, the first one-way valve is closed, the second one-way valve is opened at the same time, negative pressure is generated in the helium chamber along with reduction of the helium in the helium chamber, and the negative pressure is generated in the helium chamber due to the fact that the first one-way valve is in the closed state and the second one-way valve is in the open state; under the action of atmospheric pressure, outside air enters the air bag through the second one-way valve, so that the size of the air bag is increased, the effective lift force of the airship is reduced, the buoyancy lift force of the airship is reduced in a short time, the airship rapidly descends, compared with an existing airship, the cargo transportation airship is higher in descending speed, and the cargo transportation efficiency is improved. Therefore, the transportation efficiency of the airship is improved.

Description

Technical Field

[0001] The present application relates to the field of transportation technology, and in particular to a cargo transport airship. Background Art

[0002] At present, with the continuous improvement of transportation requirements, more and more transportation methods are being explored and used, such as air transportation and automobile transportation. However, the high transportation cost and low cargo transportation volume have become problems that the transportation industry urgently needs to solve. Transport airships have received attention in recent years due to their advantages of low cost, long range, high speed and large carrying capacity. With the continuous development of airship technology, airships have been applied and promoted in various fields.

[0003] Usually, the airship is lifted and lowered by filling and releasing the gas in the air chamber to change the buoyancy of the airship and achieve the purpose of control. The air chamber usually stores helium, which is lighter than air to make the airship take off, and the airship is lifted and lowered by filling and releasing the gas. Usually, when the airship is descending, the helium in the helium chamber is compressed to achieve descent.

[0004] Since existing airships only rely on compressed helium to descend, the airship's descent rate is slow, which affects the efficiency of cargo transportation. Utility Model Content

[0005] The present application provides a cargo transport airship to solve the technical problem of the slow descent rate of existing airships.

[0006] The embodiment of the present application provides a cargo transport airship, including a hull, a helium chamber, a helium extraction device, an air bag, a first one-way valve and a second one-way valve;

[0007] The helium chamber is arranged on the hull, the helium extraction device is in communication with the helium chamber, and the helium extraction device is used to fill or extract helium from the helium chamber;

[0008] The air bag is arranged in the helium chamber, the air inlet end of the first one-way valve is connected to the air bag, and the air outlet end of the first one-way valve is connected to the outside world, and the first one-way valve is used to connect the air in the air bag to the outside world in one direction;

[0009] The air inlet end of the second one-way valve is connected to the outside, and the air outlet end of the second one-way valve is connected to the air bag. The second one-way valve is used to connect the air from the outside to the air bag in one direction.

[0010] In the preferred technical solution of the above cargo transport airship, a controller is further included, and the helium extraction device, the first one-way valve and the second one-way valve are electrically connected to the controller respectively;

[0011] The controller controls the first one-way valve to open and the second one-way valve to close under a first preset condition;

[0012] The controller controls the first one-way valve to close and the second one-way valve to open under a second preset condition;

[0013] The first preset condition includes that the helium pumping device fills the helium chamber with helium, and the second preset condition includes that the helium pumping device extracts helium from the helium chamber.

[0014] In the preferred technical solution of the above cargo transport airship, the helium extraction device includes a helium tank and a compressor, the air inlet end of the compressor is connected to the helium chamber, and the air outlet end of the compressor is connected to the helium tank.

[0015] In the preferred technical solution of the above cargo transport airship, the hull includes a frame, a tail wing and a propeller, and the tail wing and the propeller are respectively arranged on the frame.

[0016] In the preferred technical solution of the above cargo transport airship, it also includes at least one retention bag, which is arranged below the frame and is used to contact the ground.

[0017] In the preferred technical solution of the above cargo transport airship, the frame has a rigid frame and a flexible frame, the rigid frame is located above the flexible frame, and the lower end of the rigid frame is connected to the upper end of the flexible frame, and the retention bag is connected to the flexible frame.

[0018] In the preferred technical solution of the above cargo transport airship, it also includes an internal cargo warehouse and an external cargo basket, wherein the internal cargo warehouse is arranged inside the frame, and the external cargo basket is arranged below the frame.

[0019] In the preferred technical solution of the above cargo transport airship, it also includes a bow-shaped mooring cone, which is arranged at the front end of the frame.

[0020] In the preferred technical solution of the above cargo transport airship, it also includes a cockpit, which is arranged inside the frame.

[0021] In the preferred technical solution of the above cargo transport airship, a temperature sensor, a pressure sensor, a first gravity sensor and a second gravity sensor are also included;

[0022] The temperature sensor and the pressure sensor are both arranged in the helium chamber, the temperature sensor is used to detect the temperature in the helium chamber, the pressure sensor is used to detect the pressure in the helium chamber, the first gravity sensor is arranged in the cargo built-in warehouse, the first gravity sensor is used to detect the weight of the cargo in the cargo built-in warehouse, the second gravity sensor is arranged in the external load basket, the second gravity sensor is used to detect the weight of the cargo in the external load basket.

[0023] The present application provides a cargo transport airship, comprising a hull, a helium chamber, a helium extraction device, an air bag, a first one-way valve and a second one-way valve; the helium chamber is arranged on the hull, and the helium extraction device is connected to the helium chamber; the air bag is arranged in the helium chamber, the air inlet end of the first one-way valve is connected to the air bag, and the air outlet end of the first one-way valve is connected to the outside world; the air inlet end of the second one-way valve is connected to the outside world, and the air outlet end of the second one-way valve is connected to the air bag. The cargo transport airship proposed in the present application, when the cargo transport airship needs to descend, helium is extracted into the helium chamber by the helium extraction device, and the first one-way valve is closed and the second one-way valve is opened at the same time. As the helium in the helium chamber decreases, negative pressure is generated in the helium chamber. Since the first one-way valve is in a closed state and the second one-way valve is in an open state at this time, the air bag in the helium chamber is under the action of atmospheric pressure, and the outside air enters the air bag through the second one-way valve, so that the volume of the air bag increases, thereby reducing the effective lift of the airship, thereby reducing the buoyancy of the airship in a short time, and making the airship descend quickly. Compared with the existing method of descending only by compressing helium, the cargo transport airship of the present application has a faster descent rate, thereby improving the transport rate of the cargo transport airship. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0025] Figure 1 A schematic diagram of the structure of a cargo transport airship provided in an embodiment of the present application;

[0026] Figure 2 A schematic diagram of the structure of a helium chamber in a cargo transport airship provided in an embodiment of the present application.

[0027] Description of reference numerals:

[0028] 100-hull; 110-frame; 120-tail; 130-thruster;

[0029] 200-helium chamber;

[0030] 300-helium extraction device; 310-helium tank; 320-compressor;

[0031] 400-air bag;

[0032] 500-first one-way valve;

[0033] 600-second one-way valve;

[0034] 700 - retention sac;

[0035] 800-Cargo built-in warehouse;

[0036] 900-External loading basket;

[0037] 1000-Arch-shaped retention cone;

[0038] 1100 - Cockpit.

[0039] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0040] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation methods described in the following exemplary embodiments do not represent all implementation methods consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0041] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0042] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0044] At present, with the continuous improvement of transportation requirements, more and more transportation methods are being explored and used, such as air transportation and automobile transportation. However, the high transportation cost and low cargo transportation volume have become problems that the transportation industry urgently needs to solve. Transport airships have received attention in recent years due to their advantages of low cost, long range, high speed and large carrying capacity. With the continuous development of airship technology, airships have been applied and promoted in various fields.

[0045] Usually, the airship is lifted and lowered by filling and releasing the gas in the air chamber to change the buoyancy of the airship and achieve the purpose of control. The air chamber usually stores helium, which is lighter than air to make the airship take off, and the airship is lifted and lowered by filling and releasing the gas. Usually, when the airship is descending, the helium in the helium chamber is compressed to achieve descent.

[0046] Since existing airships only rely on compressed helium to descend, the airship's descent rate is slow, which affects the efficiency of cargo transportation.

[0047] In order to solve the technical problem of the slow descent rate of existing airships, the present application proposes a cargo transport airship, including a hull, a helium chamber, a helium extraction device, an air bag, a first one-way valve and a second one-way valve; the helium chamber is arranged on the hull, the helium extraction device is connected to the helium chamber, and the helium extraction device is used to fill or extract helium from the helium chamber; the air bag is arranged in the helium chamber, the air inlet end of the first one-way valve is connected to the air bag, the air outlet end of the first one-way valve is connected to the outside world, and the first one-way valve is used to connect the air in the air bag to the outside world in one direction; the air inlet end of the second one-way valve is connected to the outside world, the air outlet end of the second one-way valve is connected to the air bag, and the second one-way valve is used to connect the air in the outside world to the air bag in one direction.

[0048] The cargo transport airship proposed in the present application, when the cargo transport airship needs to rise, helium is filled into the helium chamber through the helium extraction device, and the first one-way valve is opened and the second one-way valve is closed at the same time. As the helium in the helium chamber increases, the first one-way valve is in an open state and the second one-way valve is in a closed state at this time, so that the air bag located in the helium chamber is squeezed by the helium, and the air in the air bag is discharged to the outside through the first one-way valve. When the helium buoyancy of the cargo transport airship is greater than the gravity of the airship, the airship takes off.

[0049] When the cargo transport airship needs to descend, helium is extracted into the helium chamber by the helium extraction device, and the first one-way valve is closed and the second one-way valve is opened at the same time. As the helium in the helium chamber decreases, negative pressure is generated in the helium chamber. Since the first one-way valve is in a closed state and the second one-way valve is in an open state at this time, the air bag in the helium chamber is under the action of atmospheric pressure, and the outside air enters the air bag through the second one-way valve, so that the volume of the air bag increases, thereby reducing the effective lift of the airship, thereby reducing the buoyancy of the airship in a short time, and making the airship descend quickly. Compared with the existing method of descending only by compressing helium, the cargo transport airship of the present application has a faster descent rate, thereby improving the transport rate of the cargo transport airship.

[0050] The following specific embodiments are combined with the accompanying drawings to describe the technical solution of the application in detail. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0051] Reference Figure 1 and Figure 2 As shown, Figure 1 A schematic diagram of the structure of a cargo transport airship provided in an embodiment of the present application; Figure 2 A schematic diagram of the structure of a helium chamber in a cargo transport airship provided in an embodiment of the present application.

[0052] In the embodiments of this application, refer to Figure 1 to Figure 2 As shown, an embodiment of the present application provides a cargo transport airship, including a hull 100, a helium chamber 200, a helium extraction device 300, an air bag 400, a first one-way valve 500 and a second one-way valve 600.

[0053] The helium chamber 200 is disposed on the hull 100 , and the helium extraction device 300 is communicated with the helium chamber 200 . The helium extraction device 300 is used to fill or extract helium from the helium chamber 200 .

[0054] The air bag 400 is arranged in the helium chamber 200, the air inlet end of the first one-way valve 500 is connected to the air bag 400, and the air outlet end of the first one-way valve 500 is connected to the outside world. The first one-way valve 500 is used to connect the air in the air bag 400 to the outside world in one direction.

[0055] The air inlet end of the second one-way valve 600 is connected to the outside, and the air outlet end of the second one-way valve 600 is connected to the air bag 400. The second one-way valve 600 is used to connect the outside air to the air bag 400 in one direction.

[0056] The hull 100 of the present application is provided with a helium chamber 200, the size of which is fixed, an air bag 400 is provided in the helium chamber 200, a helium extraction device 300 is connected to the helium chamber 200, and the helium extraction device 300 is used to fill or extract helium from the helium chamber 200.

[0057] When the cargo transport airship needs to rise, helium is filled into the helium chamber 200 through the helium extraction device 300, and the first one-way valve 500 is opened and the second one-way valve 600 is closed at the same time. As the helium in the helium chamber 200 increases, since the first one-way valve 500 is in an open state and the second one-way valve 600 is in a closed state, the air bag 400 located in the helium chamber 200 is squeezed by the helium, and the air in the air bag 400 is discharged to the outside through the first one-way valve 500. That is, at this time, the helium in the helium chamber 200 increases, the space occupied by the helium increases, the air in the air bag 400 decreases, the volume of the air bag 400 decreases, and the buoyancy of the airship increases. When the helium buoyancy of the entire airship is greater than the gravity of the airship, the airship takes off.

[0058] When the cargo transport airship needs to descend, helium is extracted into the helium chamber 200 through the helium extraction device 300, and the first one-way valve 500 is closed and the second one-way valve 600 is opened at the same time. As the helium in the helium chamber 200 decreases, negative pressure is generated in the helium chamber 200. Since the first one-way valve 500 is in a closed state and the second one-way valve is in an open state, the air bag 400 located in the helium chamber 200 is under the action of atmospheric pressure, and the outside air enters the air bag 400 through the second one-way valve 600, so that the helium in the helium chamber 200 is reduced, the space occupied by the helium is reduced, the air in the air bag 400 is reduced, and the volume of the air bag 400 is increased, so that the effective lift of the airship is reduced, so that the buoyancy of the airship is reduced in a short time, so that the airship descends quickly. Compared with the existing method of descending only by compressing helium, the cargo transport airship of the present application has a faster descent rate, thereby improving the transport rate of the cargo transport airship.

[0059] In other possible embodiments, a controller is further included, and the helium extraction device 300 , the first one-way valve 500 , and the second one-way valve 600 are electrically connected to the controller respectively.

[0060] Under the first preset condition, the controller controls the first one-way valve 500 to open and controls the second one-way valve 600 to close.

[0061] Under the second preset condition, the controller controls the first one-way valve 500 to be closed and controls the second one-way valve 600 to be opened.

[0062] The first preset condition includes that the helium pumping device 300 fills the helium chamber 200 with helium, and the second preset condition includes that the helium pumping device 300 extracts helium from the helium chamber 200 .

[0063] In this embodiment, the first one-way valve 500 and the second one-way valve 600 are controlled by the controller respectively. When the airship needs to rise, that is, the helium extraction device 300 fills helium into the helium chamber 200, the controller controls the first one-way valve 500 to open and the second one-way valve 600 to close, ensuring that the air in the air bag 400 can be discharged smoothly and preventing the outside air from entering the air bag 400.

[0064] When the airship needs to descend, the helium extraction device 300 extracts helium into the helium chamber 200, and the controller controls the first one-way valve 500 to close and the second one-way valve 600 to open, that is, the helium extraction device 300 extracts helium into the helium chamber 200, and the controller controls the first one-way valve 500 to close and the second one-way valve 600 to open, to ensure that the outside air can smoothly enter the air bag 400 and prevent the air in the air bag 400 from being discharged to the outside.

[0065] It should be noted that the helium extraction device 300 can also be controlled by a controller, and the controller controls the helium extraction device 300 to extract compressed helium or release helium.

[0066] In another possible embodiment, the helium extraction device 300 includes a helium tank 310 and a compressor 320, wherein the air inlet of the compressor 320 is communicated with the helium chamber 200, and the air outlet of the compressor 320 is communicated with the helium tank 310. In this embodiment, the helium tank 310 is used to fill the helium chamber 200 with helium, and the compressor 320 is used to compress the helium in the helium chamber 200 into the helium tank 310.

[0067] In other possible embodiments, the hull 100 includes a frame 110, a tail 120 and a propeller 130, and the tail 120 and the propeller 130 are respectively arranged on the frame 110. In this embodiment, the tail 120 can be used to control balance, direction and attitude, etc., the propeller 130 is used as the forward power of the airship, and the frame 110 is used to install various parts of the airship.

[0068] In one embodiment, at least one retention bag 700 is further included. The retention bag 700 is disposed below the frame 110. The retention bag 700 is used to contact the ground and support the ground.

[0069] In this embodiment, a retention bag 700 is arranged at the bottom of the airship. When the airship takes off, the gas inside the retention bag 700 is released, that is, the air in the retention bag 700 is discharged, thereby reducing the impact on the flight of the airship. When the airship descends, the retention bag 700 is inflated, thereby effectively increasing the descending rate of the airship. At the same time, it can provide a certain support for the airship to be detained, thereby effectively increasing the cushioning force when the airship lands. At this time, the retention bag 700 of the airship plays a role in bearing part of the pressure. Because the total weight of the airship before unloading is equal to the buoyancy, when the load is unloaded, the load is suddenly reduced. At this time, the sudden change of the load weight is eliminated by the pressure difference between air and helium. In order to reduce the impact of the time difference, in fact, a partial pressure difference has been generated before the load is unloaded to be applied to the airship detention frame. Therefore, the retention bag 700 at this time plays the role of gravity buffering and support.

[0070] The retention bag 700 increases the contact area between the airship and the ground, thereby reducing the pressure of the airship on the retention frame. At the same time, it can provide a buffer force when loading and unloading cargo, thereby reducing the damage to the retention frame caused by the gravity difference before and after loading and unloading the load.

[0071] In some embodiments, the skeleton 110 has a rigid skeleton and a flexible skeleton, the rigid skeleton is located above the flexible skeleton, the lower end of the rigid skeleton is connected to the upper end of the flexible skeleton, and the retention capsule 700 is connected to the flexible skeleton.

[0072] In this embodiment, the lower end of the airship is configured as a flexible frame, which acts as a gravity buffer when the airship descends and contacts the ground, thereby preventing the frame 110 from breaking or being damaged, and improving the durability of the frame 110.

[0073] In another embodiment, it further includes an internal cargo warehouse 800 and an external cargo basket 900 . The internal cargo warehouse 800 is disposed inside the frame 110 , and the external cargo basket 900 is disposed below the frame 110 .

[0074] In this embodiment, the transportation mode of the cargo internal warehouse 800 or the external hanging basket 900 is selected according to the volume and weight of the load. When the load is large and the transportation time is short, the external hanging basket 900 is selected for transportation. It only needs to load the load into the external hanging basket 900, and fix the load by the fixing rope provided on the external hanging basket 900. Because of its easy loading and unloading, it can effectively reduce the loading time and improve the transportation efficiency. When the load is small and the transportation is long-distance, the cargo internal warehouse 800 is selected for transportation. The cargo is mainly loaded by a loader. Because the cargo is inside the frame 110, that is, inside the airship, it can reduce air resistance during transportation and effectively reduce flight energy consumption.

[0075] In other embodiments, an arcuate mooring cone 1000 is further included, and the arcuate mooring cone 1000 is disposed at the front end of the frame 110. The arcuate mooring cone 1000 can increase the strength of the front end of the frame 110 and play a role in satellite guidance.

[0076] In some embodiments, a cockpit 1100 is further included, and the cockpit 1100 is disposed inside the frame 110. The cockpit 1100 is used for the pilot to operate the airship.

[0077] In one embodiment, it further includes a temperature sensor, a pressure sensor, a first gravity sensor, and a second gravity sensor;

[0078] The temperature sensor and the pressure sensor are both arranged in the helium chamber 200. The temperature sensor is used to detect the temperature in the helium chamber 200. The pressure sensor is used to detect the pressure in the helium chamber 200. The first gravity sensor is arranged in the cargo built-in warehouse 800. The first gravity sensor is used to detect the weight of the cargo in the cargo built-in warehouse 800. The second gravity sensor is arranged in the external load basket 900. The second gravity sensor is used to detect the weight of the cargo in the external load basket 900.

[0079] In this embodiment, the temperature sensor, the pressure sensor, the first gravity sensor and the second gravity sensor transmit the detected temperature and pressure in the helium chamber 200 to the controller, and the weight of the cargo in the built-in cargo compartment 800 and the weight of the cargo in the external load basket 900 are transmitted to the controller, such as a computer. The controller determines the difference between the buoyancy generated by the helium and the gravity of the load through calculation, thereby controlling whether the helium extraction device 300 extracts or releases helium.

[0080] Furthermore, a heat insulating layer is provided on the outer surface of the helium chamber 200. By providing the heat insulating layer on the outer surface of the helium chamber 200, it is ensured that the temperature in the helium chamber 200 will not be affected by the outside world, and a huge temperature fluctuation in the helium chamber 200 is avoided, thereby ensuring the stability of the pressure in the helium chamber 200.

[0081] The control principle of the buoyancy weight of the airship and the deadweight of the load: that is, the buoyancy weight of the helium is kept consistent with the total weight of the airship in real time. When the airship adds load, the helium tank 310 of the helium extraction device 300 inside the airship inflates the helium chamber 200 to increase the buoyancy weight of the airship. When the load of the airship is unloaded, the helium in the helium chamber 200 needs to be compressed into the helium tank 310 by the compressor 320 in the helium extraction device 300 for storage. At the same time, the air bag 400 automatically replenishes air due to atmospheric pressure to increase the load weight of the airship. The gravity difference between air and helium is used to solve the buoyancy difference before and after the load is unloaded. The specific calculation principle is as follows:

[0082] According to the ideal gas state equation, the basic state parameters of the helium chamber 200 and the helium tank 310 can be obtained respectively. Finally, according to the conservation of mass, the state equation of the system is obtained and the work is calculated.

[0083] In the helium chamber 200, the mass of helium is as follows according to the state equation:

[0084] m 1 =PaQ c / (R h T a )

[0085] Where Pa is the atmospheric pressure, Q c is the volume of the helium chamber, R h is the gas constant of helium, T a is the system temperature.

[0086] Assuming the volume flow rate of the compressor is V, the mass flow rate of the compressor is:

[0087] m=VP / (R h T)

[0088] Where P is the helium chamber pressure and T is the helium chamber temperature.

[0089] The mass of helium in the helium chamber per unit time of compressor operation:

[0090] m 2 =m 1 -m

[0091] In the formula, m 1 It is the quality of helium in the helium room before the compressor starts working.

[0092] Then the volume of the helium chamber becomes:

[0093] V 2 =m 2 R h T 2 / Pa

[0094] In the formula, m 2 is the mass of helium after working, V 1 is the volume of the helium chamber before operation, V 2 is the volume of the helium chamber after working.

[0095] Then the volume of the helium chamber reduced per unit time is:

[0096] δ v =V 2 -V 1

[0097] The lift reduction of the system per unit time is:

[0098] δ m =δ v (ρ a -ρ h )

[0099] In the formula, ρ a is the atmospheric density, ρ h is the helium density in the helium chamber after unit time.

[0100] The equation for the airship weight before unloading is:

[0101] G 1 =G 氦气 +G 自重 +G 荷载物 =F 1浮 (Provided by Helium)

[0102] The equation for the weight of the airship after unloading is:

[0103] G 2 =G 氦气 +G 自重 +G 空气 =F 2浮 (Provided by Helium)

[0104] The gravity difference before and after unloading is the lift difference of the airship:

[0105] The pressure difference per unit time is:

[0106] G 1 -G 2 =G 荷载物 =F 1浮 -F 2浮 =δ v (ρ a -ρ h )=(V 2 -V 1 )(ρ a -ρ h )

[0107] =(m 2 R h T 2 / Pa-V 1 )(ρ a -ρ h )

[0108] =((m 1 -m)R h T 2 / Pa-V 1 )(ρ a -ρ h ))

[0109] =((m1 -VP / (R h T))R h T 2 / Pa-V 1 )(ρ a -ρ h ))

[0110] =((m 1 R h T 2 -VP) / Pa-V 1 )(ρ a -ρ h )

[0111] =((PaQc / (R h T a )R h T 2 -VP) / Pa-V 1 )(ρ a -ρ h )

[0112] =((QcT 2 / T 1 -VP / Pa)-V 1 )(ρ a -ρ h )

[0113] Where, Qc is the volume of the helium chamber, the airship design parameters (known);

[0114] T 1 is the temperature of the helium chamber before the compressor works, T 2 It is the temperature of the helium chamber after the compressor works. The specific temperature can be known through the temperature sensor.

[0115] V is the volume flow of the compressor (known), V 1 is the volume of the helium chamber before operation (known);

[0116] P is the helium chamber pressure (known through the pressure sensor);

[0117] Pa is the atmospheric pressure (known), ρ h is the helium density in the helium chamber after unit time;

[0118] ρ h =m 2 / V 2 =m 2 / (m 2 R h T 2 / Pa)=Pa / (R h T 2 )

[0119] R h is the gas constant of helium (known)

[0120] The above calculation formula can be used to automatically control the gravity of the airship before and after the unloading of the load. After calculation, all its technical parameters can be measured by existing instruments to ensure that the overall buoyancy and the total weight of the airship are kept in a balanced state before and after the unloading of the airship. This technology can provide the necessary technical means for the automatic control system of the airship load loading and unloading.

[0121] Those skilled in the art will readily appreciate other embodiments of the present application after considering the description and practicing the contents disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary techniques in the art that are not disclosed in the present application. The description and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0122] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A cargo transport airship, characterized in that: It comprises a hull (100), a helium chamber (200), a helium extraction device (300), an air bag (400), a first one-way valve (500) and a second one-way valve (600); The helium chamber (200) is arranged on the hull (100), the helium extraction device (300) is in communication with the helium chamber (200), and the helium extraction device (300) is used to fill or extract helium from the helium chamber (200); The air bag (400) is arranged in the helium chamber (200); the air inlet end of the first one-way valve (500) is connected to the air bag (400); the air outlet end of the first one-way valve (500) is connected to the outside world; the first one-way valve (500) is used to connect the air in the air bag (400) to the outside world in a one-way manner; The air inlet end of the second one-way valve (600) is connected to the outside, and the air outlet end of the second one-way valve (600) is connected to the air bag (400). The second one-way valve (600) is used to connect the air from the outside to the inside of the air bag (400) in a one-way manner.

2. The cargo transport airship according to claim 1, characterized in that: It also includes a controller, and the helium extraction device (300), the first one-way valve (500) and the second one-way valve (600) are electrically connected to the controller respectively; The controller controls the first one-way valve (500) to open and the second one-way valve (600) to close under a first preset condition; The controller controls the first one-way valve (500) to close and the second one-way valve (600) to open under a second preset condition; The first preset condition includes the helium pumping device (300) filling the helium chamber (200) with helium, and the second preset condition includes the helium pumping device (300) extracting helium from the helium chamber (200).

3. The cargo transport airship according to claim 1, characterized in that: The helium extraction device (300) comprises a helium tank (310) and a compressor (320), wherein an air inlet end of the compressor (320) is in communication with the helium chamber (200), and an air outlet end of the compressor (320) is in communication with the helium tank (310).

4. The cargo transport airship according to any one of claims 1 to 3, characterized in that: The hull (100) comprises a frame (110), a tail wing (120) and a propeller (130), wherein the tail wing (120) and the propeller (130) are respectively arranged on the frame (110).

5. The cargo transport airship according to claim 4, characterized in that: It also includes at least one retention bag (700), which is arranged below the frame (110) and is used to contact the ground.

6. The cargo transport airship according to claim 5, characterized in that: The skeleton (110) comprises a rigid skeleton and a flexible skeleton, wherein the rigid skeleton is located above the flexible skeleton, and the lower end of the rigid skeleton is connected to the upper end of the flexible skeleton, and the retention capsule (700) is connected to the flexible skeleton.

7. The cargo transport airship according to claim 4, characterized in that: It also includes an internal cargo warehouse (800) and an external cargo basket (900), wherein the internal cargo warehouse (800) is arranged inside the frame (110), and the external cargo basket (900) is arranged below the frame (110).

8. The cargo transport airship according to claim 4, characterized in that: It also includes an arched mooring cone (1000), which is arranged at the front end of the skeleton (110).

9. The cargo transport airship according to claim 4, characterized in that: It also includes a cockpit (1100), wherein the cockpit (1100) is arranged inside the frame (110).

10. The cargo transport airship according to claim 7, characterized in that: Also includes a temperature sensor, a pressure sensor, a first gravity sensor and a second gravity sensor; The temperature sensor and the pressure sensor are both arranged in the helium chamber (200), the temperature sensor is used to detect the temperature in the helium chamber (200), the pressure sensor is used to detect the pressure in the helium chamber (200), the first gravity sensor is arranged in the cargo built-in warehouse (800), the first gravity sensor is used to detect the weight of the cargo in the cargo built-in warehouse (800), and the second gravity sensor is arranged in the external load hanging basket (900), the second gravity sensor is used to detect the weight of the cargo in the external load hanging basket (900).

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