Paddle tip jet propeller combined power system for solar power generation airship

Abstract

The invention relates to a blade tip jet propeller combined power system for a solar power generation airship, belongs to the technical field of combined power devices, and solves the problems that airship propellers in the prior art are single in power source, weak in night flight power, not resistant to wind and short in endurance. Comprising two sets of blade tip jet propeller assemblies which are symmetrically installed on the two sides of the lower portion of the front portion of an airship body of the solar power generation airship. The propeller motor is used for driving the propeller blades; the air storage air injection device is used for providing propeller tip air injection power for propeller blades; and a propeller support arm for fixing the propeller motor to the hull.

Description

Technical Field

[0001] The invention relates to the technical field of combined power devices, in particular to a tip jet propeller combined power system for a solar power generation airship. Background Art

[0002] As a low-speed aircraft, the stratospheric airship generally rises to a level flight altitude and remains aloft through the net buoyancy of the residual lifting gas inside the capsule, and resists wind resistance through the power system. It can operate in a near-space environment at an altitude of 18 to 25 km above the ground and achieve long-term stable residence in the region. The stratospheric airship has the characteristics of long airborne time, wide coverage, large carrying capacity, and slow travel speed. It is precisely because of the unique meteorological conditions at altitudes above 18 km and the inherent technical characteristics of the airship itself that the stratospheric airship needs to focus on solving the thrust-drag balance problem, energy balance problem and controllable flight problem, and has higher requirements for the efficiency, durability and working strategy of the propulsion method.

[0003] Existing airships generally use propellers as power devices, which are mainly used to resist the wind and maintain the fixed-point residence of the airship. The power source of the propeller usually adopts a single power form, that is, the solar power generation device directly powers the propeller motor. When the flight environment is daytime, the solar power generation device works normally. In addition to generating the power required to support the full-power operation of various onboard equipment, it can also generate a certain amount of additional redundant power. These redundant powers will be stored in the energy storage battery in the form of electrical energy and used to power the propeller motor and various necessary onboard equipment at night (when the solar power generation device cannot work normally). However, the battery capacity of the energy storage battery is linearly related to the weight of the energy storage battery, and the weight of the energy storage battery is strictly limited to the total weight of the airship. Since the flight conditions of the airship have strict requirements on the weight index, there is an upper limit on the battery weight. When the endurance increases and the power becomes weaker, the airship cannot meet the wind resistance index; when the power becomes stronger and the endurance decreases, the airship cannot achieve the mission requirements of staying for a long time. Under this restriction, modern airships can only make a trade-off between "power" and "endurance".

[0004] At present, the airships in the field have not solved the problems of weak power, poor wind resistance, short endurance, etc. of the airship flying at night. An airship that can stay in the stratosphere for a long time, has good controllable flight ability and does not increase the total weight is of great significance. Summary of the invention

[0005] In order to solve the above problems, the embodiments of the present invention provide a tip jet propeller combined power system for a solar power generation airship, which can effectively overcome the uneven energy in the flight environment during the day and night, and enable the airship to obtain increased thrust and long-term residence capabilities.

[0006] According to one embodiment of the present invention, a blade tip jet propeller combined power system for a solar power generation airship is provided, characterized in that it includes two sets of blade tip jet propeller assemblies symmetrically installed on both sides of the lower front part of the hull of the solar power generation airship, and the blade tip jet propeller assembly includes:

[0007] Propeller blades;

[0008] A propeller motor for driving propeller blades;

[0009] An air storage jet device provides tip jet power for the propeller blades;

[0010] The propeller support arm secures the propeller motor to the boat hull.

[0011] Optionally, the gas storage and injection device comprises:

[0012] The gas storage auxiliary airbag is arranged in the hull and is used to store and provide gas for the propeller tip jet power;

[0013] A compressor connected to the air storage auxiliary airbag for delivering pressurized gas to the air storage auxiliary airbag;

[0014] The internal air guide pipeline includes a pipeline air inlet and a pipeline jet outlet, wherein the pipeline air inlet is connected to the air storage auxiliary air bag for receiving gas from the air storage auxiliary air bag, and the pipeline jet outlet is arranged at the tip of the propeller blade for ejecting a gas flow to provide tip jet power.

[0015] Optionally, the compressor is arranged in the hull and includes an air inlet end connected to the outside of the hull and an air outlet end connected to the air storage auxiliary airbag. After the compressor inhales air from the outside through the air inlet end, the inhaled air is pressurized and input into the air storage auxiliary airbag through the air outlet end, and the pressurized air is injected into the air storage auxiliary airbag.

[0016] Optionally, the internal air guide pipeline has a bending structure, including a plurality of assembled composite material tubes and a pneumatic rotary joint connecting the composite material tubes.

[0017] Optionally, the internal air guide duct includes a duct portion arranged in the propeller support arm, a duct portion arranged in the housing of the propeller motor, and a duct portion arranged in the housing of the propeller blade.

[0018] Optionally, the opening direction of the pipe jet port of the internal air guide pipe is located in the propeller disc plane of the propeller blade and is perpendicular to the extension direction of the propeller blade.

[0019] Optionally, the internal air guiding pipeline further includes a pressure regulating valve for adjusting the flow rate of the gas flowing through the internal air guiding pipeline, thereby adjusting the power provided by the gas storage jet device.

[0020] Optionally, the tip jet propeller combined power system for solar power generation airship switches between the following working states:

[0021] Daytime working state: the propeller blades are driven by the propeller motor, the power source of the propeller motor is provided by the solar power generation device of the solar power airship, and the pressure regulating valve of the internal air guide pipeline of the air storage jet device is closed, driving the compressor to operate, compressing the external environment air and storing it in the air storage auxiliary airbag;

[0022] Night working state: the pressure regulating valve of the internal air duct of the air storage jet device is opened, the high-pressure gas in the air storage auxiliary airbag flows through the internal air duct, and is ejected at high speed through the pipeline jet port set at the tip position of the driving propeller blade, driving the propeller blade to rotate. At the same time, the propeller motor runs at low power and the power source is provided by the energy storage battery of the solar power airship, providing auxiliary coordinated driving for the propeller blades.

[0023] According to another embodiment of the present invention, a tip jet propeller combined power system for a solar power generation airship includes: an air storage auxiliary airbag, a compressor, a propeller motor, a propeller blade, a propeller housing, an internal air guide pipe, and a pressure regulating valve. It should be noted that the combined power system is particularly applicable to airships (aerostats). The power system cannot be used alone and should be installed on both sides of the hull. The airship also has components such as a hull frame, main and auxiliary airbags, a tail wing, a solar power generation device, an energy storage battery, a pod, and related instruments and equipment.

[0024] Taking the conventional layout airship as an example, the power system is installed on both sides of the hull, responsible for generating traction to drive the airship to move; the tail wing is installed at the tail of the airship, responsible for cooperating with the power system to control the movement direction and posture of the airship; the solar power generation device is installed on the top of the hull, responsible for converting solar energy into electrical energy during the day.

[0025] Furthermore, the power system includes an air storage sub-airbag, a compressor, a propeller motor, propeller blades, an internal air guide pipe, and a pressure regulating valve. The air storage sub-airbag can withstand seven times the atmospheric pressure at sea level and is used to store high-pressure air. The air inlet of the air storage sub-airbag is connected to the compressor, and the compressor compresses the air and fills it into the air storage sub-airbag; the air outlet of the air storage sub-airbag is connected to the air inlet of the internal air guide pipe. Due to the pressure difference between the inside and the outside, the gas will pass through the air guide pipe and be ejected from the pipe jet port. A pressure regulating valve is installed in the upstream section of the internal air guide pipe, and the power system controls the flow rate and flow rate of the gas ejection through the pressure regulating valve.

[0026] The power of this combined power system is generated by two parts: the propeller motor and the gas storage jet device. Both power sources eventually generate pulling force in the form of propeller rotation, which directly acts on the airship to drive the airship to move. The specific working mode is as follows:

[0027] 1. The first part of the power is the electrical energy converted from light energy by the solar power generation device. The electrical energy directly drives the propeller motor to rotate, converting the electrical energy into mechanical energy;

[0028] 2. The second part of the power is the internal energy generated by the electric energy driving the compressor to store the high-pressure air in the air storage sub-airbag. The high-pressure air is discharged at a high speed through the pressure difference inside and outside the airbag, thereby converting the internal energy into mechanical energy. From the principle of conservation of momentum, it can be seen that under the reaction of the momentum of the high-pressure air ejection, the propeller can also be driven to rotate.

[0029] Compared with the prior art, the tip jet propeller combined power system for solar power generation airship provided by the embodiment of the present invention has at least the following beneficial effects:

[0030] 1. Through the use of multiple power sources, the multi-mode storage of excess energy during the day is successfully achieved. In addition to storing energy in the form of electrical energy in batteries, energy is also stored in the form of internal energy in the air storage auxiliary airbags through the air storage jet device, realizing additional energy supply for propeller drive at night, effectively overcoming the problems of weak power, poor wind resistance and short endurance of airships at night, and greatly improving the compatibility of the two in terms of power and endurance of the airship.

[0031] 2. The various components in the tip jet propeller combined power system for solar power generation airship provided by the present invention are reasonably arranged in structure, so that it has a very light weight and does not cause a burden on the increase of the overall weight of the airship.

[0032] 3. In the tip jet propeller combined power system for solar power generation airship provided by the present invention, each component of the gas storage jet device can ensure the independence of its function, is easy to disassemble and assemble, and improves the operability of maintenance.

[0033] 4. Each component, including the compressor, air storage airbag, internal air guide pipe and pneumatic rotary joint at the propeller shaft, is easy to manufacture and low in cost, ensuring low system maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. The features and advantages of the present invention can be more clearly understood by referring to the drawings. The drawings are schematic and should not be understood as limiting the present invention in any way. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0035] Figure 1The figure is a front view of an airship equipped with a tip jet propeller combined power system for a solar power generation airship provided according to an embodiment of the present invention.

[0036] Figure 2 The figure is a top view of an airship equipped with a tip jet propeller combined power system for a solar power generation airship provided according to an embodiment of the present invention.

[0037] Figure 3 It is a left view of an airship equipped with a tip jet propeller combined power system for a solar power generation airship provided according to an embodiment of the present invention.

[0038] Figure 4 The figure is an isometric view of an airship equipped with a tip jet propeller combined power system for a solar power generation airship provided according to an embodiment of the present invention.

[0039] Figure 5 It is a schematic diagram of a tip jet propeller combined power system for a solar power generation airship provided according to an embodiment of the present invention.

[0040] Figure 6 It is a partially enlarged schematic diagram of a combined power system for a solar power generation airship provided according to an embodiment of the present invention.

[0041] Figure 7 It is a schematic diagram of the air guide structure inside the propeller of the combined power system for solar power generation airship provided according to an embodiment of the present invention.

[0042] Explanation of the reference numerals: 1-tail, 2-hull, 3-solar power generation device, 4-propeller tip jet propeller assembly, 41-air storage auxiliary air bag, 42-compressor, 43-air bag air inlet, 44-propeller motor, 45-propeller blades, 46-internal air guide pipe, 47-propeller support arm, 48-pressure regulating valve, 49-pipeline air inlet, 50-pipeline jet outlet. DETAILED DESCRIPTION

[0043] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0044] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0045] Hereinafter, a tip jet propeller combined power system for a solar power generation airship provided according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0046] The following is a description of the tip jet propeller combined power system for solar power airships provided according to an embodiment of the present invention, combined with a conventional solar power airship for explanation, and the relevant parameters of the solar power airship are listed below for reference. The working altitude of the solar power airship is about 18km, the airship length is 100 meters, the slenderness ratio is 3.75, the volume is 40564 cubic meters, the take-off weight is about 4000 kilograms, and the propeller radius is 4 meters. Conventional solar power airships may include a hull composed of a skeleton and a skin, an airbag, a tail wing, a solar power generation device, an energy storage battery, a propulsion system, and a load (including a pod, airborne equipment, passengers, etc.). The size, weight, energy efficiency and other parameters of the above content are not particularly restricted in the present invention. It should be understood that, as needed, the tip jet propeller combined power system for solar power airships provided according to an embodiment of the present invention can be combined with and applied to any other form of solar power airship, not limited to the solar power airships schematically listed here.

[0047] refer to Figure 1-7 According to an embodiment of the present invention, a tip jet propeller combined power system for a solar power airship is provided, including two groups of tip jet propeller assemblies 4 symmetrically installed on both sides of the lower front part of the hull 2 ​​of the solar power airship. The solar power airship includes a hull 2, a solar power generation device 3 installed on the top of the hull 2, an energy storage battery (not shown in the figure) arranged in the hull 2, and a tail wing 1 arranged at the rear of the hull 2. The solar power airship may also include components such as airborne equipment (not shown in the figure). Figure 5 As shown, in this embodiment, the tip jet propeller assembly 4 includes a propeller blade 45, a propeller motor 44 driving the propeller blade 45, an air storage jet device providing the propeller blade 45 with tip jet power, and a propeller support arm 47, which fixes the propeller motor 44 to the hull 2. The propeller motor 44 driving the propeller blade 45 and the air storage jet device providing the propeller blade 45 with tip jet power provide two sets of power systems for driving the propeller blade 45. The power of the propeller motor 44 can be provided by the solar power generation device and energy storage battery of the solar power generation airship.

[0048] like Figures 5 to 7As shown, the gas storage jet device includes a gas storage sub-airbag 41, a compressor 42, and an internal air guide pipeline 46. The internal air guide pipeline 46 includes a pipeline air inlet 49 at its inlet end and a pipeline jet outlet 50 at its outlet end, wherein the pipeline air inlet 49 is connected to the gas storage sub-airbag 41 for receiving gas from the gas storage sub-airbag 41, and the pipeline jet outlet 50 is arranged at the tip of the propeller blade 45 for ejecting airflow to provide tip jet power. The gas used for the tip jet power in this embodiment is air.

[0049] In this embodiment, the gas storage auxiliary airbag 41 can be arranged at the skin of the hull 2 ​​on both sides of the lower front part of the hull 2, and can have a volume of about 400 cubic meters. In order to achieve light weight, air tightness and strength, the gas storage auxiliary airbag 41 can be made of fiber-reinforced laminated multifunctional materials. The gas storage auxiliary airbag 41 can have an air inlet 43 and an air outlet, the air inlet is used to receive external gas, and the air outlet is connected to the pipeline air inlet 49 of the internal air guide pipeline 46. The connection between the air inlet and the air outlet can be airtightly sealed by a gluing process. The air outlet of the gas storage auxiliary airbag 41 can be connected to the pipeline air inlet 49 of the internal air guide pipeline 46 through a gas sealing rubber ring and a threaded seal. The gas storage auxiliary airbag 41 can be made of a fiber-reinforced laminated multifunctional material composed of a weather-resistant layer, a helium-blocking layer, a bearing layer and a heat-sealing layer. While ensuring air tightness, the skin bonding strength reaches 300N / cm, which is only about 114g per square meter.

[0050] In this embodiment, the air compressor 42 can be installed near the air storage sub-airbag 41 in the hull 2, and has an air inlet end connected to the outside of the hull and an air outlet end connected to the air inlet 43 of the air storage sub-airbag 41, and sucks in the air from the outside atmosphere and transports it to the air storage sub-airbag 41 for storage. After the air compressor 42 sucks in air from the outside through the air inlet end, it pressurizes the sucked air, and then inputs it into the air inlet 43 of the air storage sub-airbag 41 through the air outlet end, so as to inject the pressurized air into the air storage sub-airbag 41. The air compressor 42 can pressurize the gas in the air storage sub-airbag 41 to 3 times the ambient air pressure. The air outlet end of the air compressor 42 is fixedly connected to the air inlet 43 of the air storage sub-airbag 41, and the airbag material of the air inlet 43 can be tightly attached to the air outlet end of the air compressor 42 through a gluing process, thereby ensuring the airtight seal at the connection. Optionally, the compressor 42 can be arranged about 20 cm behind the air storage auxiliary airbag 41 in the hull 2. The power of the compressor 42 can be provided by the solar power generation device and energy storage battery of the solar power airship. The compressor can use a small industrial air compressor, which can meet the requirement of 3 times the pressure difference between the output end and the input end, and weighs about 8 kg.

[0051] like Figure 6 and Figure 7As shown, in this embodiment, the internal air duct 46 can be arranged in the propeller support arm 47 so as to be supported and protected by the propeller support arm 47. The internal air duct 46 can have Figure 7 The bending structure shown can be connected by multiple composite tubes through a pneumatic rotary joint, which provides air tightness of the internal air duct 46 while realizing the function that the internal air duct 46 can rotate with the propeller motor 44, ensuring the gas sealing effect under high-speed rotation. Optionally, the internal air duct 46 may also include a pressure regulating valve 48 for adjusting the flow of gas flowing through the internal air duct 46, so as to control the switch and size of the blade tip jet power. The pressure regulating valve 48 can be set in the upstream section of the internal air duct 46. Optionally, the two pipeline jet ports 50 of the internal air duct 46 of each group of blade tip jet propeller assembly 4 can be set at the two blade tips of the propeller blade 45, and the opening direction is located in the propeller disc plane of the propeller blade 45, and is perpendicular to the extension direction of the propeller blade 45, and is counterclockwise or clockwise. The pipeline jet port 50 may be located at 5 cm from the tip of the propeller blade 45, and the opening size may be a slender rectangular opening of 11.66 cm×00.66 cm. The internal air guide pipeline 46 may be made of a lightweight carbon fiber composite material tube, and may have a diameter of 72 mm and a tube wall thickness of 2 mm. The lightweight carbon fiber composite material tube used may weigh only about 50 g per meter, and may withstand a pressure of hundreds of MPa, providing excellent functions.

[0052] When the air storage jet device is working, the compressed gas stored in the air storage sub-airbag 41 is compressed by the compressor 42, flows into the internal air guide pipeline 46 through the air outlet and the pipeline air inlet 49 of the internal air guide pipeline 46, passes through the internal air guide pipeline 46, and is ejected from the pipeline jet port 50 located at the tip of the propeller blade 45, driving the propeller blade 45 to rotate, thereby providing power for the solar power generation airship.

[0053] See also Figure 5Optionally, in another embodiment, a portion of the internal air duct 46 is disposed in the propeller support arm 47, a portion of the internal air duct 46 is disposed in the housing of the propeller motor 44, and a portion of the internal air duct 46 is disposed in the housing of the propeller blade 45, thereby preventing the internal air duct 46 from being exposed to the outside, providing better protection for the internal air duct 46, and ensuring smooth operation of gas delivery. In this embodiment, when the gas storage jet device is working, the compressed gas in the gas storage auxiliary airbag 41 flows into the internal air duct 46 through the gas outlet and the pipeline air inlet 49 of the internal air duct 46, and flows from the pipeline portion of the internal air duct 46 in the propeller support arm 47, through the pipeline portion of the internal air duct 46 in the propeller motor 44, into the pipeline portion of the internal air duct 46 in the propeller blade 45, and finally ejects from the two pipeline jet ports 50 located at the blade tip of the propeller blade 45. Among them, each pipeline part of the internal air guide pipeline 46 can be connected through a pneumatic rotary joint, so that the pipeline part of the internal air guide pipeline 46 in the propeller blade 45 can rotate as the propeller motor 44 drives the propeller blade 45 without affecting the gas flow path.

[0054] Continue to refer Figure 5 In this embodiment, the propeller support arm 47 can be arranged outside the hull 2 ​​at a position adjacent to the air storage auxiliary airbag 41, and the two are separated by the outer shell of the hull 2, so as to facilitate the internal air guide duct 46 arranged in the hollow interior of the propeller support arm 47 to communicate with the air storage auxiliary airbag 41, and then facilitate the delivery of gas from the air storage auxiliary airbag 41 to the tip of the propeller blade 45. The propeller support arm 47 is fixedly connected to the frame of the hull 2 ​​(the hull frame is used to maintain the shape of the airship, which is an essential component of various airships, not shown in the figure), one end of the propeller support arm 47 is connected to the frame of the hull 2, and the other end is fixedly connected to the propeller motor 44, so as to provide a stable installation of the tip jet propeller assembly 4 on the hull 2.

[0055] In an example of a tip jet propeller combined power system for a solar power generation airship provided according to an embodiment of the present invention, assuming that at an altitude of 18 km, the external environmental pressure is about 7 kPa, and under a pressure difference of 3 times with the outside, the internal pressure of the air storage auxiliary airbag 41 is about 21 kPa, which can accommodate about 100 kg of compressed air. After calculation, under the condition that the nozzle area of ​​the pipeline jet port 50 is 40 square centimeters, the jet velocity at the pipeline jet port 50 can be maintained at 0.95 Mach. When the propeller motor 44 is maintained at 6% power low-consumption operation at night, and the air storage jet device is opened through the pressure regulating valve 48, the combination of the two power systems can achieve resistance to 14 m / s wind for about 6 minutes, 8 m / s wind for about 12 minutes, and 7 m / s wind for about 14 minutes.

[0056] The tip jet propeller combined power system for a solar power generation airship provided in an embodiment of the present invention can have the following two working states.

[0057] Daytime working state: During the day, when there is sufficient solar energy, the propeller blades 45 are driven by the propeller motor 44. The power source of the propeller motor 44 completely relies on the electric energy generated by the solar power generation device 3 to achieve full power operation. At this time, the air storage jet device does not need to be driven, and the pressure regulating valve 48 of the internal air guide pipeline 46 is closed. The redundant electricity generated by the solar power generation device 3 is also used to charge the energy storage battery and drive the compressor 42 to operate. The compressor 42 stores the external ambient air in the air storage auxiliary airbag 41 in a high-pressure form for use at night.

[0058] Nighttime working state: There is no light condition at night, and the working efficiency of the solar power generation device 3 is greatly reduced. The energy of the propeller motor 44 at night is provided by the electric energy stored in the energy storage battery during the day. However, due to the limited battery power, in order to extend the endurance time, the propeller motor 44 only operates at low power at night to provide auxiliary matching power for driving the propeller blades 45. The pressure regulating valve 48 of the internal air guide pipeline 46 of the gas storage jet device is opened, and the high-pressure gas in the gas storage auxiliary airbag 41 is ejected at high speed through the pipeline jet port 50 set at the blade tip position of the driving propeller blade 45, driving the propeller blade 45 to rotate. At this time, the propeller blade 45 is mainly driven by the gas storage jet device, and the propeller motor 44 drives the propeller blade 45 as a supplement, realizing the function of resisting the incoming wind and the fixed-point residence of the airship in a combined power mode. In this nighttime working state, according to the environmental and climatic conditions and the navigation needs of the airship, the opening degree of the pressure regulating valve 48 of the internal air guide pipeline 46 can also be adjusted to provide different sizes of blade tip jet power. In this nighttime working state, for example, the propeller motor 44 can achieve low-consumption output at only 6% of the rated power, while the main driving power of the propeller blades 45 is provided by the air storage jet device.

[0059] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A tip jet propeller combined power system for a solar power airship, characterized in that: The invention comprises two sets of blade tip jet propeller assemblies symmetrically installed on both sides of the lower front part of the hull of the solar power generation airship, and the blade tip jet propeller assemblies include: Propeller blades; A propeller motor for driving propeller blades; An air storage jet device provides tip jet power for the propeller blades; The propeller support arm secures the propeller motor to the boat hull.

2. The tip jet propeller combined power system for solar power generation airship according to claim 1, characterized in that: The gas storage and injection device comprises: The gas storage auxiliary air bag is arranged in the hull and is used to store and provide gas for the propeller tip jet power; A compressor connected to the air storage auxiliary airbag for delivering pressurized gas to the air storage auxiliary airbag; The internal air guide pipeline includes a pipeline air inlet and a pipeline jet outlet, wherein the pipeline air inlet is connected to the air storage auxiliary air bag for receiving gas from the air storage auxiliary air bag, and the pipeline jet outlet is arranged at the tip of the propeller blade for ejecting a gas flow to provide tip jet power.

3. The tip jet propeller combined power system for solar power generation airship according to claim 2 is characterized in that: The compressor is arranged in the hull and includes an air inlet end connected to the outside of the hull and an air outlet end connected to the air storage auxiliary airbag. After the compressor inhales air from the outside through the air inlet end, the inhaled air is pressurized and input into the air storage auxiliary airbag through the air outlet end, and the pressurized air is injected into the air storage auxiliary airbag.

4. The tip jet propeller combined power system for solar power generation airship according to claim 2 is characterized by: The internal air guide pipeline has a bending structure, including a plurality of assembled composite material tubes and a pneumatic rotary joint connecting the composite material tubes.

5. The tip jet propeller combined power system for solar power generation airship according to claim 4 is characterized in that: The internal air guide pipeline includes a pipeline portion arranged in the propeller support arm, a pipeline portion arranged in the housing of the propeller motor, and a pipeline portion arranged in the housing of the propeller blade.

6. The tip jet propeller combined power system for solar power generation airship according to claim 2, characterized in that: The opening direction of the pipeline jet port of the internal air guide pipeline is located in the propeller disc plane of the propeller blade and is perpendicular to the extension direction of the propeller blade.

7. The tip jet propeller combined power system for solar power generation airship according to claim 2, characterized in that: The internal air guide pipeline also includes a pressure regulating valve, which is used to adjust the flow rate of the gas flowing through the internal air guide pipeline, and further adjust the power provided by the gas storage jet device.

8. The tip jet propeller combined power system for solar power generation airship according to claim 7, characterized in that: The tip jet propeller combined power system for solar power airship switches between the following working states: Daytime working state: the propeller blades are driven by the propeller motor, the power source of the propeller motor is provided by the solar power generation device of the solar power airship, and the pressure regulating valve of the internal air guide pipeline of the air storage jet device is closed, driving the compressor to operate, compressing the external environment air and storing it in the air storage auxiliary airbag; Night working state: the pressure regulating valve of the internal air duct of the air storage jet device is opened, the high-pressure gas in the air storage auxiliary airbag flows through the internal air duct, and is ejected at high speed through the pipeline jet port set at the tip position of the driving propeller blade, driving the propeller blade to rotate. At the same time, the propeller motor runs at low power and the power source is provided by the energy storage battery of the solar power airship, providing auxiliary coordinated driving for the propeller blades.

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