Airship buoyancy force control system and airship
By using a pressure detection and ammonia gasbag water tank conversion system, the safety hazards caused by changes in airship load were resolved, enabling the airship to float smoothly and be transported safely, while reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2026-03-27
AI Technical Summary
Existing airships suffer from safety hazards and limitations in transporting large items due to the large and short changes in their own weight before and after unloading the load, and the lack of an effective lift control system.
It employs a pressure detection module, a control module, and a buoyancy conversion module. By detecting load information, it adjusts the gas and liquid conversion between the ammonia bladder and the ammonia water tank, thereby achieving automatic adjustment of buoyancy. It also utilizes the characteristic that ammonia is easily soluble in water to quickly change the buoyancy.
It reduces airship transportation costs, improves safety performance, ensures that buoyancy changes in sync with load changes, avoids safety accidents, and allows for stable buoyancy to adapt to changes in airship load.
Smart Images
Figure CN224045416U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the airship carrying technical field, and particularly relates to an airship buoyancy control system and an airship. BACKGROUND
[0002] In recent years, with the continuous development of technology, there are three ways of land transportation, air transportation and sea transportation for transportation equipment. Compared with sea transportation and land transportation, air transportation is not limited by road and waterway conditions, and has better transportation convenience. However, air transportation is generally used for the transportation of emergency goods due to high transportation cost and extremely harsh transportation conditions.
[0003] The airship buoyancy medium is mainly helium and hydrogen. Helium is relatively expensive and difficult to obtain, and hydrogen is relatively low in safety and has a large safety hazard. At present, the airship is mainly used for meteorological monitoring and other matters. However, the self-weight of the airship changes greatly before and after the load is unloaded, and the load mutation time is short. At present, there is no corresponding control system to solve this problem. Based on the above technical limitations, the airship is rarely used for transporting large goods at present. CONTENT OF THE INVENTION
[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the present application provides an airship buoyancy control system and an airship.
[0005] The first aspect of the present application provides an airship buoyancy control system, comprising:
[0006] A pressure detection module is configured to detect and obtain the load information of the to-be-unloaded goods or the to-be-loaded goods in the airship load basket.
[0007] A control module is electrically connected with the pressure detection module, and the control module is configured to calculate the buoyancy adjustment amount according to the load information.
[0008] A buoyancy conversion module comprises a water tank, an ammonia gas bag and an ammonia water tank. The water tank is in communication with the ammonia water tank, and the ammonia gas bag is in communication with the ammonia water tank. The buoyancy conversion module is configured to extract the gas in the ammonia gas bag and the water in the water tank into the ammonia water tank according to the buoyancy adjustment amount to reduce the buoyancy, or extract the ammonia water in the ammonia water tank and separate the ammonia gas into the ammonia gas bag to increase the buoyancy according to the buoyancy adjustment amount.
[0009] Optionally, the water tank and the ammonia water tank are in communication through a three-way pipe, and the three-way pipe has a first inlet, a second inlet and an outlet in communication. The first inlet is in communication with the water tank, the outlet is in communication with the ammonia water tank, and the second inlet is in communication with the ammonia gas bag.
[0010] Optionally, the tee pipe is internally formed with a Venturi section, the second inlet is formed on a side wall of the Venturi section and communicates with the Venturi section, and the Venturi section forms a negative pressure area after water passes through, so as to extract gas in the ammonia gas bag through the negative pressure area.
[0011] Optionally, the outlet communicates with the ammonia water tank through an ammonia water pipeline, an ammonia gas loop is arranged on the ammonia water pipeline, and two ends of the ammonia gas loop respectively communicate with the ammonia gas bag and the ammonia water pipeline.
[0012] Optionally, the buoyancy conversion module heats ammonia water through a first heat exchanger to separate ammonia gas.
[0013] Optionally, the buoyancy conversion module extracts water in the water tank through a first water pump and extracts ammonia water in the ammonia water tank into the first heat exchanger through a second water pump.
[0014] Optionally, ammonia gas and water passing through the first heat exchanger are cooled through a second heat exchanger, and a cold source of the second heat exchanger is the water tank.
[0015] Optionally, the second heat exchanger includes a condensing tank, an ammonia gas cold exchange tank and a water cold exchange tank arranged in the condensing tank, an inlet and an outlet of the condensing tank communicate with the water tank, an inlet of the ammonia gas cold exchange tank communicates with the ammonia water tank, an outlet thereof communicates with the ammonia gas bag, an inlet of the water cold exchange tank communicates with the ammonia water tank, and an outlet thereof communicates with the water tank.
[0016] Optionally, the airship buoyancy control system further includes a buoyancy monitoring module for monitoring buoyancy in the ammonia gas bag in real time, and the buoyancy monitoring module is in communication connection with the control module.
[0017] The second aspect of the application provides an airship including the airship buoyancy control system as described in any one of the above aspects, so as to adjust the buoyancy of the airship.
[0018] Compared with the prior art, the technical scheme provided by the embodiments of the application has the following advantages:
[0019] The airship buoyancy control system and airship provided by the application include a pressure detection module, a control module and a buoyancy conversion module, the control module can adapt to the change of the load of the airship to adjust the buoyancy of the airship, and ensure that the airship can float steadily, the buoyancy conversion module includes a water tank, an ammonia gas bag and an ammonia water tank, the water tank is communicated with the ammonia water tank, the ammonia gas bag is communicated with the ammonia water tank, after the ammonia gas is dissolved in water, the volume of the gas decreases, the buoyancy decreases, and the airship moves towards the ground; after the ammonia gas is separated from water, the volume of the gas increases, the buoyancy increases, and the airship moves away from the ground, according to the change of the load of the airship before and after loading or unloading, the control module can calculate the change amount of the buoyancy required by the airship to maintain the current height, and then the control module can automatically adjust the conversion between the ammonia gas and the ammonia water, compared with the helium and hydrogen airships used in the prior art, the cost is greatly reduced, the safety performance is greatly improved, meanwhile, the ammonia gas is extremely easy to dissolve in water and easy to separate from water, the conversion rate between the ammonia gas and the ammonia water is high, so that the buoyancy conversion module can quickly reduce or increase the buoyancy, thereby ensuring that the change of the buoyancy and the change of the load are consistent within a short time range during the whole loading or unloading process, and the asynchronous difference between the load and the buoyancy of the airship is avoided to cause the airship safety accident. BRIEF DESCRIPTION OF DRAWINGS
[0020] The drawings incorporated into the specification and forming a part of the specification, show embodiments consistent with the application, and together with the specification, serve to explain the principles of the application.
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below, and obviously, other drawings can also be obtained by those skilled in the art without creative labor.
[0022] Figure 1 A schematic diagram of the airship buoyancy control system of an embodiment of the application;
[0023] Figure 2 A process schematic diagram of the buoyancy conversion of an embodiment of the application.
[0024] In the drawings: 1, pressure detection module; 2, control module; 3, buoyancy conversion module; 31, water tank; 32, ammonia gas bag; 33, ammonia water tank; 34, three-way pipe; 35, ammonia gas loop; 36, first heat exchanger; 361, solar heat absorption plate; 362, cold medium tank; 363, hot medium tank; 37, first water pump; 38, second water pump; 4, second heat exchanger; 41, ammonia gas cooling tank; 42, water cooling tank; 5, buoyancy monitoring module; 6, object loading basket; 7, third water pump. DETAILED DESCRIPTION
[0025] In order to enable a more clear understanding of the above-mentioned objects, features and advantages of the present application, the following will further describe the solutions of the present application. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
[0026] In the following description, a large number of specific details are set forth in order to facilitate a thorough understanding of the present application, but the present application can also be implemented in other manners different from those described herein; obviously, the embodiments described in the specification are only a part of the embodiments of the present application, and not all the embodiments.
[0027] The airship buoyancy control system and the airship will be described in detail through specific embodiments as follows:
[0028] Referring to FIGS. 1 to 3, Figure 1 and Figure 2 Some embodiments of the present application provide an airship buoyancy control system, which comprises a pressure detection module 1, a control module 2 and a buoyancy conversion module 3.
[0029] The pressure detection module 1 is configured to detect and obtain the load information of the to-be-unloaded cargo or the to-be-loaded cargo in the airship cargo basket 6. The control module 2 is electrically connected with the pressure detection module 1. The control module 2 is configured to calculate the buoyancy adjustment amount through the load information, that is, the airship can adapt to the change of the airship load to adjust its own buoyancy through the control module 2, so as to ensure that the airship can float stably.
[0030] The buoyancy conversion module 3 comprises a water tank 31, an ammonia gas bag 32 and an ammonia water tank 33. The water tank 31 is in communication with the ammonia water tank 33. The ammonia gas bag 32 is in communication with the ammonia water tank 33. The buoyancy conversion module 3 is configured to extract the gas in the ammonia gas bag 32 and the water in the water tank 31 into the ammonia water tank 33 according to the buoyancy adjustment amount to reduce the buoyancy, that is, after the ammonia gas is dissolved in water, the volume of the gas decreases, the buoyancy decreases, and the airship moves towards the ground; or the ammonia water in the ammonia water tank 33 is extracted and the ammonia gas is separated and filled into the ammonia gas bag 32 to increase the buoyancy, that is, after the ammonia gas is separated from the water, the volume of the gas increases, the buoyancy increases, and the airship moves away from the ground.
[0031] It can be understood that according to the change of the load of the airship before loading and unloading, the control module 2 can calculate the change of the lift required for the airship to maintain the current height, and then the control module 3 can automatically adjust the conversion between ammonia and ammonia water. Compared with the helium and hydrogen airships used in the prior art, the cost is greatly reduced, the safety performance is greatly improved, and the conversion rate between ammonia and ammonia water is high due to the characteristics that ammonia is easily dissolved in water and easily separated from water. The lift conversion module 3 can quickly reduce or increase the lift, so as to ensure that the load change and the lift change are always consistent within a short time range during the entire loading or unloading process, avoiding the occurrence of airship safety accidents caused by the asynchronous difference between the load and the lift.
[0032] In specific implementation, the pressure detection module 1 includes a pressure sensor, and after the weight of the airship is input into the control module 2, the pressure sensor is arranged at the bottom of the cargo basket 6. The parameter obtained by the pressure sensor is the load information of the to-be-unloaded cargo or the to-be-loaded cargo.
[0033] The control module 2 at least includes a central control subsystem and a lift control subsystem, so as to calculate the lift adjustment amount through the central control subsystem, and control the action of the lift conversion module 3 through the lift control subsystem.
[0034] In some embodiments, the water tank 31 and the ammonia water tank 33 are communicated through a three-way pipe 34, and the three-way pipe 34 has a first inlet, a second inlet and an outlet in communication. The first inlet is communicated with the water tank 31, the outlet is communicated with the ammonia water tank 33, and the second inlet is communicated with the ammonia gas bag 32. That is, the water in the water tank 31 enters the three-way pipe 34 through the first inlet, the ammonia gas in the ammonia gas bag 32 enters the three-way pipe 34 through the second inlet, and the ammonia gas is dissolved in water in the three-way pipe 34 before entering the ammonia water tank 33 through the outlet. In this way, the volume of ammonia gas in the ammonia gas bag 32 can be reduced, thereby reducing the lift.
[0035] It should be noted that the fusion is carried out in the ammonia water tank 33, and the dissolution efficiency of ammonia gas is limited by the contact area of ammonia gas and water in the ammonia water tank 33. In the present application, the ammonia gas enters the three-way pipe 34 through the second inlet and can be directly fused with the water flowing in the three-way pipe 34, thereby improving the efficiency of dissolving ammonia gas in water and ensuring the efficiency of adjusting the lift.
[0036] In specific implementation, a Venturi section is formed in the three-way pipe 34, and the second inlet is formed on the side wall of the Venturi section and communicated with the Venturi section. The Venturi section forms a negative pressure area after the water passes through, so as to extract the gas in the ammonia gas bag 32 through the negative pressure area. For details, refer to Figure 2As shown, the Venturi section is formed into a pipeline structure with the cross section decreasing first and then increasing along the water flow direction, here the Venturi effect can be formed, that is, the water flow velocity will increase, and a negative pressure area can be formed to extract ammonia gas and water for fusion, in this way, the ammonia gas can be converted into ammonia water in a short time, thereby reducing the buoyancy of the airship at a faster rate.
[0037] Specifically, a control valve is further arranged between the ammonia gas bag 32 and the second inlet to be opened or closed as needed to realize the supply of ammonia gas.
[0038] In some embodiments, the outlet is communicated with the ammonia water tank 33 through an ammonia water pipeline, an ammonia gas loop 35 is arranged on the ammonia water pipeline, and two ends of the ammonia gas loop 35 are communicated with the ammonia gas bag 32 and the ammonia water pipeline respectively, so as to recover the ammonia gas not dissolved in water, which will not enter the ammonia water tank 33 for subsequent ammonia gas recovery, thereby ensuring the circulation efficiency of the ammonia gas and improving the buoyancy adjustment accuracy.
[0039] In some embodiments, the buoyancy conversion module 3 heats the ammonia water through the first heat exchanger 36 to separate the ammonia gas. Specifically, the first heat exchanger 36 includes a heat exchange tank, a solar heat absorption plate 361, a cold medium tank 362 and a hot medium tank 363. The solar heat absorption plate 361 is arranged outside the airship, and the heat absorbed thereby is stored in the hot medium tank 363. The hot medium in the hot medium tank 363 flows into the heat exchange tank to exchange heat with the ammonia water. After absorbing heat, the ammonia water is converted into ammonia gas and water. After the temperature of the hot medium in the hot medium tank 363 is reduced, it enters the cold medium tank 362 to reabsorb heat and circulate, thereby effectively reducing the amount of energy used.
[0040] The buoyancy conversion module 3 extracts water in the water tank 31 through the first water pump 37 and extracts ammonia water in the ammonia water tank 33 into the first heat exchanger 36 through the second water pump 38. Specifically, the control module 2 can control the first water pump 37 and the second water pump 38 to enter the cycle to realize the dissolution and separation of ammonia gas.
[0041] Further, the ammonia gas and water passing through the first heat exchanger 36 are cooled by the second heat exchanger 4, and the cold source of the second heat exchanger 4 is the water tank 31. It can be understood that the temperature of the ammonia gas and water after passing through the first heat exchanger 36 is high, which can be exchanged by the second heat exchanger 4 to reduce the temperature, and then stored in the ammonia gas bag 32 or the water tank 31 for the next cycle.
[0042] Specifically, the second heat exchanger 4 includes a condensation tank, an ammonia gas cold exchange tank 41 and a water cold exchange tank 42 arranged in the condensation tank. The inlet and outlet of the condensation tank are communicated with the water tank 31, that is, a water circulation loop can be formed between the water tank 31 and the condensation tank of the second heat exchanger 4, and the water in the water tank 31 can be used as a cold source to exchange heat with the ammonia gas at a higher temperature.
[0043] The inlet of the ammonia gas cooling box 41 is communicated with the ammonia water tank 33, and the outlet is communicated with the ammonia gas bag 32. The ammonia gas separated from the ammonia water tank 33 can enter the ammonia gas cooling box 41, and the cooled ammonia gas can be stored in the ammonia gas bag 32. The inlet of the water cooling box 42 is communicated with the ammonia water tank 33, and the outlet is communicated with the water tank 31. The water separated from the ammonia water tank 33 can enter the water cooling box 42, and the cooled water can be stored in the water tank 31.
[0044] Specifically, the third water pump 7 is further arranged between the water tank 31 and the second heat exchanger 4, and the control module 2 can control the third water pump 7 to enter the circulation to realize the recycling of the water.
[0045] In some embodiments, the airship buoyancy control system further comprises a buoyancy monitoring module 5 for monitoring the buoyancy in the ammonia gas bag 32 in real time. The buoyancy monitoring module 5 is in communication connection with the control module 2. In specific implementation, if the buoyancy monitoring module 5 monitors that the change of the buoyancy is abnormal during the unloading or loading process, the information can be fed back to the control module 2, and the unloading or loading is stopped. In this way, the rate of the ammonia gas converted into ammonia water can be controlled according to the load of the unloaded cargo, and the synchronous change of the buoyancy and the load of the airship can be ensured.
[0046] In specific use of the airship buoyancy control system of the present application, first, sufficient ammonia gas is injected into the ammonia gas bag 32 before the airship is loaded with cargo, and the provided buoyancy of the ammonia gas injection amount needs to be greater than the total of the mass of the airship itself and the mass of the cargo, and then the cargo is loaded onto the airship.
[0047] The airship has four states of rising, descending, loading cargo and unloading cargo. When the airship needs to descend, the first water pump 37 is started to extract the water in the water tank 31 through the Venturi section. The ammonia gas is fully mixed with the water by the way of negative pressure suction, so that the ammonia gas is converted into ammonia water, the buoyancy of the airship is reduced, and the airship is descended to the designated location.
[0048] When the airship needs to rise, the second water pump 38 is started to extract the ammonia water in the ammonia water tank 33 to separate the ammonia gas, and the buoyancy of the airship is increased to drive the airship to rise.
[0049] When the cargo in the cargo basket 6 of the airship needs to be unloaded, the weight of the cargo is transmitted to the pressure detection module 1, i.e. the pressure sensor arranged at the bottom during the unloading process. The pressure sensor transmits the pressure change value to the control module 2. The control module 2 transmits the instruction to the buoyancy conversion module 3 by calculation to control the ammonia gas to be converted into ammonia water and stored in the ammonia water tank. During this process, the buoyancy monitoring module 5 feeds back the buoyancy change value to the control module 2. If the change of the buoyancy is abnormal during the unloading process, the unloading is stopped. In this way, the rate of the ammonia gas converted into ammonia water can be controlled according to the load of the unloaded cargo, and the synchronous change of the buoyancy and the load of the airship can be realized.
[0050] When the airship needs to load cargo, the second water pump 38 is started according to the cargo load, the second water pump 38 extracts ammonia water to pass through the first heat exchanger 36 for heating, the separated ammonia gas after heating enters the ammonia gas cooling tank 41 for condensation, the separated water enters the water cooling tank 42 for cooling, the cooling tank provides a cold source, which can separate the mixed gas containing water vapor and ammonia gas, so that the separated ammonia gas enters the ammonia gas bag 32 to provide the airship with buoyancy, and the water in the second heat exchanger 4 can be pumped by the third water pump 7 to the water tank 31 for storage for repeated use. Similarly, during the entire unloading or loading process, the change of buoyancy and the change of load are always consistent within a short time range.
[0051] Specifically, the adjustment rate of the buoyancy can be achieved by controlling the frequency of the first water pump 37, the frequency of the second water pump 38 and the temperature of the heater, and can be specifically set according to actual needs.
[0052] Some other embodiments of the present application provide an airship comprising the airship buoyancy control system of any of the above embodiments to adjust the airship buoyancy.
[0053] The airship provided by the embodiments of the present application has the beneficial effects of the airship buoyancy control system of any of the above embodiments, and details are not repeated here.
[0054] It should be noted that, in this document, relational terms such as“first” and“second”, and the like, are used solely to distinguish one entity or action from another entity or action, without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms“comprises”,“comprising”, or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, an element preceded by“comprises...” does not, without more limitations, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.
[0055] The above is only a specific implementation of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications of these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A blimp lift control system, characterized by, The application relates to a system for controlling the buoyancy of a flying boat, which comprises: a pressure detection module (1) for detecting and obtaining the load information of the goods to be unloaded or loaded in a flying boat cargo basket (6); a control module (2) electrically connected with the pressure detection module (1), which is configured to calculate the buoyancy adjustment amount according to the load information; a buoyancy conversion module (3) comprising a water tank (31), an ammonia gas bag (32) and an ammonia water tank (33), wherein the water tank (31) is communicated with the ammonia water tank (33), the ammonia gas bag (32) is communicated with the ammonia water tank (33), and the buoyancy conversion module (3) is configured to extract the gas in the ammonia gas bag (32) and the water in the water tank (31) into the ammonia water tank (33) to reduce the buoyancy according to the buoyancy adjustment amount, or extract the ammonia water in the ammonia water tank (33) and separate ammonia gas to fill into the ammonia gas bag (32) to increase the buoyancy according to the buoyancy adjustment amount.
2. The airship lift control system of claim 1, wherein, The water tank (31) and the ammonia water tank (33) are communicated through a three-way pipe (34), and the three-way pipe (34) has a first inlet, a second inlet and an outlet which are communicated, the first inlet is communicated with the water tank (31), the outlet is communicated with the ammonia water tank (33), and the second inlet is communicated with the ammonia gas bag (32).
3. The airship lift control system of claim 2, wherein, A Venturi section is formed in the three-way pipe (34), and the second inlet is formed on the side wall of the Venturi section and communicated with the Venturi section, the Venturi section forms a negative pressure area after water passes through, so as to extract the gas in the ammonia gas bag (32) through the negative pressure area.
4. The airship lift control system of claim 2, wherein, The outlet is communicated with the ammonia water tank (33) through an ammonia water pipeline, an ammonia gas loop (35) is arranged on the ammonia water pipeline, and two ends of the ammonia gas loop (35) are respectively communicated with the ammonia gas bag (32) and the ammonia water pipeline.
5. The airship lift control system of claim 1, wherein, The buoyancy conversion module (3) heats the ammonia water through a first heat exchanger (36) to separate ammonia gas.
6. The airship lift control system of claim 5, wherein, The buoyancy conversion module (3) extracts the water in the water tank (31) through a first water pump (37) and extracts the ammonia water in the ammonia water tank (33) into the first heat exchanger (36) through a second water pump (38).
7. The airship lift control system of claim 5, wherein, The ammonia gas and water passing through the first heat exchanger (36) are cooled through a second heat exchanger (4), and the cold source of the second heat exchanger (4) is the water tank (31).
8. The airship lift control system of claim 7, wherein, The second heat exchanger (4) comprises a condensation tank, an ammonia gas cooling tank (41) and a water cooling tank (42) arranged in the condensation tank, the inlet and outlet of the condensation tank are communicated with the water tank (31), the inlet of the ammonia gas cooling tank (41) is communicated with the ammonia water tank (33), the outlet is communicated with the ammonia gas bag (32), the inlet of the water cooling tank (42) is communicated with the ammonia water tank (33), and the outlet is communicated with the water tank (31).
9. The airship lift control system of any one of claims 1 to 8, wherein, The flying boat buoyancy control system further comprises a buoyancy monitoring module (5) for monitoring the buoyancy in the ammonia gas bag (32) in real time, and the buoyancy monitoring module (5) is in communication connection with the control module (2).
10. An airship, characterized by A blimp lift control system as claimed in any one of claims 1 to 9 for adjusting the lift of a blimp.