Buoyancy adjusting water tank for self-propelled model and using method

Abstract

The buoyancy adjusting water tank for the self-propelled model comprises a balloon, the outer surface of the balloon is provided with a balloon wall, the outer surface of the balloon wall is fixed through two tying belts which are perpendicular to each other, and the outermost layers of the two tying belts abut against the inner ring of the balloon wall; a water tank water injection and drainage pipe for injecting and draining ballast water in the tank is installed below the ball tank wall, a balloon water injection and drainage pipe and a water tank water injection and drainage pipe are installed above the ball tank wall, a balloon ventilation hose is installed between the balloon water injection and drainage pipe and the balloon, and a barometer is installed on the balloon water injection and drainage pipe. A flowmeter is installed on the water tank water injection and drainage pipe, a pressure gauge is installed on the water tank water injection and exhaust pipe, and the laser range finder is installed on the tank wall in a tank penetrating piece mode. A high-pressure one-way drainage valve is further installed below the ball cabin wall located beside the water injection and drainage pipe of the water cabin, the internal pressure is actively and controllably increased, the pressure difference between the interior and the exterior of the cabin is reduced, the limit diving depth is increased, the equipment weight is reduced, the drainage rate can be increased, energy consumption is reduced, and noise is weakened.

Description

Technical Field

[0001] The invention relates to the technical field of buoyancy regulating equipment for self-propelled models, and in particular to a buoyancy regulating water tank for self-propelled models and a use method thereof. Background Art

[0002] In the design and development of large manned submersibles, in order to resolve technical risks, it is necessary to conduct scaled-down self-propelled prototype tests and verifications. In addition to traditional hydrodynamic tests, it is also necessary to conduct a number of studies such as multi-system joint adjustment, overall layout optimization, and operating condition tests. Large deep-sea submersibles are usually equipped with pressure-resistant buoyancy regulating water tanks, and the remaining buoyancy is adjusted by filling and draining water.

[0003] In order to demonstrate and verify the system in the self-propelled prototype, it is necessary to configure a buoyancy adjustment water tank according to the scale for buoyancy adjustment. This will cause the following problems:

[0004] 1) When the buoyancy is adjusted by filling and draining water, the water level in the cabin will change, and the free liquid surface in the cabin will also shake when the hull moves. These will change the center of gravity of the water tank and interfere with the hydrodynamic test with high precision requirements;

[0005] 2) In the prototype, the motor, valve group, pipeline, etc. are difficult to meet the scale, which increases the weight of the system. In order to withstand pressure, the thickness of the water tank is difficult to reduce, and the weight reduction problem of the entire prototype is prominent;

[0006] 3) In deep water, the pressure outside the cabin is large, the drainage is slow, the energy consumption is large, and the noise is high. The shortcomings are particularly obvious in lake trials and sea trials;

[0007] 4) The cabin space is large and the equipment layout is difficult, so it is necessary to improve the equipment integration and partially take into account its system functions.

[0008] For example, it has a function of slight center of gravity adjustment to meet the need for slight center of gravity adjustment due to changes in buoyancy, load changes, sitting off the bottom or precise calibration of tests; for example, it has an emergency blowing function to achieve shared pressure cabins, reduce equipment redundancy, reduce system burden and improve safety.

[0009] In order to solve the above problems, multiple systems need to be added, which are highly complex and have a low degree of integration. It is difficult to meet the requirements of the narrow cabin space layout of the scaled model, and new solutions are urgently needed. Summary of the invention

[0010] In view of the shortcomings of the above-mentioned existing production technology, the applicant provides a buoyancy regulating water tank for self-propelled models and a method of use. In the buoyancy adjustment, the free liquid surface can be eliminated to achieve a constant center of gravity position, meeting the precise control requirements in hydrodynamic tests. It can also be used as a center of gravity adjustment mechanism to achieve slight center of gravity adjustment. At the same time, it takes into account the emergency blowing of the water tank, improves the integration of the equipment, and adapts to small cabin capacity. It also has an active and controllable function of increasing internal pressure, which reduces the pressure difference between the inside and outside of the cabin, increases the maximum diving depth, reduces the weight of the equipment, and can also increase the drainage rate, reduce energy consumption, and reduce noise.

[0011] The technical solution adopted by the present invention is as follows:

[0012] A buoyancy regulating water tank for a self-propelled model comprises a balloon filled with high-pressure gas, so that the surface of the balloon is hard, the outer surface of the balloon is provided with a balloon wall, the outer surface of the balloon wall is fixed by two mutually perpendicular fastening belts, and the outermost layers of the two fastening belts are in contact with the inner circle of the ball cabin wall; a water tank filling and drainage pipe for injecting and discharging ballast water in the cabin is installed below the ball cabin wall, a balloon filling and exhaust pipe and a water tank filling and exhaust pipe are installed above the ball cabin wall, a balloon ventilation hose is installed between the balloon filling and exhaust pipe and the balloon, a barometer is installed on the balloon filling and exhaust pipe, a flow meter is installed on the water tank filling and exhaust pipe, a pressure gauge is installed on the water tank filling and exhaust pipe, and a laser rangefinder is installed on the cabin wall in the form of a cabin penetration component; a high-pressure one-way drain valve is also installed below the ball cabin wall next to the water tank filling and exhaust pipe.

[0013] Its further technical solution is:

[0014] The spherical cabin wall adopts a spherical thin-shell pressure-resistant cabin structure.

[0015] The balloon wall adopts a spherical thin-wall structure.

[0016] The balloon wall and the ball cabin wall are installed concentrically.

[0017] The balloon wall is made of a high-strength and high-elasticity rubber material.

[0018] The fastening belt is a retractable rubber ring, and a plurality of water flow holes are opened on the fastening belt.

[0019] The balloon ventilation hose is a flexible high-strength hose.

[0020] The length of the balloon ventilation hose is greater than the radius of the balloon cabin.

[0021] The high-pressure one-way drain valve opens in the state of emergency blowing off the ultra-high internal pressure and drains water outside the cabin.

[0022] A method for using a buoyancy regulating water tank for a self-propelled model.

[0023] When buoyancy adjustment is required:

[0024] Before launching, fill the balloon with high-pressure gas, and draw a vacuum between the balloon and the bulkhead through the tank filling and exhaust pipe;

[0025] When buoyancy adjustment is needed underwater, the water pump draws water from outside into the cabin, squeezing the airbag to cause it to shrink adaptively. The space between the balloon and the bulkhead is completely filled with water, eliminating the free liquid surface.

[0026] The high-pressure airbag has a hard surface, and the tension of the tie belt has little effect on the deformation of the balloon. During the contraction process, the balloon is always spherical and the center of gravity is constant;

[0027] When center of gravity adjustment is required:

[0028] After the buoyancy adjustment is completed, the balloon is spherical, and the space between the balloon and the bulkhead is filled with water. When the center of gravity needs to be adjusted, gas is injected and discharged into the balloon and the cabin respectively to change the pressure difference between the inside and outside of the balloon, causing the balloon to shrink or expand. When the balloon shrinks, the water level in the cabin will drop, and the center of gravity of the spherical cabin will move down; conversely, when the balloon expands, the center of gravity moves up, and a slight adjustment of the height of the center of gravity of the water tank is achieved. The balloon deformation is measured by a laser rangefinder, and the amount of water in the cabin is measured by a flowmeter. Combined with the volume of the spherical cabin, based on geometric knowledge, the current center of gravity position of the water in the cabin can be quantitatively obtained, and the function of quantitative center of gravity adjustment can be achieved.

[0029] When emergency blowing is required:

[0030] In shallow waters, the buoyancy regulating water tank also serves as an emergency water blowing tank. When emergency anti-sinking is needed, ultra-high pressure gas is injected into the tank to push the high pressure one-way drain valve to open, quickly draining water outside the tank to increase positive buoyancy for the boat.

[0031] When you need a performance boost:

[0032] Actively injecting gas into the cabin to increase the internal pressure reduces the pressure difference between the inside and outside of the cabin, improves the pressure resistance of the bulkhead, and facilitates weight reduction of the spherical cabin. When underwater, the boat-borne gas source can be used for temporary inflation to increase the maximum diving depth in an emergency. In deep waters, it can also increase the drainage rate, reduce energy consumption, and reduce noise, thereby improving drainage performance.

[0033] The beneficial effects of the present invention are as follows:

[0034] The present invention has a compact and reasonable structure and is easy to operate. Through the cooperation between the ball cabin wall, the balloon wall, the fastening belt, the injection and drainage outlet, and the injection and exhaust outlet components, the function of buoyancy adjustment can be conveniently completed, the internal pressure can be actively and controllably increased, the pressure difference between the inside and outside of the cabin can be reduced, the maximum diving depth can be increased, the weight of the equipment can be reduced, the drainage rate can be increased, the energy consumption can be reduced, and the noise can be reduced.

[0035] When the present invention adjusts the buoyancy by injecting and discharging water, the high-pressure balloon in the spherical cabin will deform adaptively, eliminating the free liquid surface and maintaining the center of gravity of the water cabin constant, which is convenient for accurate measurement and control of the self-propelled model.

[0036] The present invention can also actively and controllably quantitatively adjust the center of gravity of the water tank and be used as a center of gravity adjustment device, thereby expanding the function of the buoyancy adjustment water tank and improving the integration level of the equipment.

[0037] The present invention takes into account the emergency water-blowing tank function, reduces tank capacity requirements, and improves the level of equipment integration. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the structure of the present invention (the ball cabin and the balloon are in a half-cut state).

[0039] Figure 2 This is a schematic diagram of the constant center of gravity principle in the buoyancy adjustment of the present invention.

[0040] Figure 3 This is a schematic diagram of the center of gravity adjustment process of the present invention.

[0041] in:

[0042] 11. Ball cabin wall; 12. Balloon wall; 13. Tie-down strap;

[0043] 21. Water tank filling and drainage pipe; 22. Balloon filling and exhaust pipe; 23. Water tank filling and exhaust pipe; 24. Balloon ventilation hose;

[0044] 31. Flow meter; 32. Barometer; 33. Pressure gauge; 34. Laser rangefinder;

[0045] 4. High-pressure one-way drain valve. DETAILED DESCRIPTION

[0046] The specific implementation of the present invention will be described below in conjunction with the accompanying drawings.

[0047] like Figure 1-Figure 3As shown, the buoyancy regulating water tank for self-propelled model aircraft of this embodiment includes a balloon, the inside of which is filled with high-pressure gas, so that the surface of the balloon is hard, and the outer surface of the balloon is provided with a balloon wall 12, and the outer surface of the balloon wall 12 is fixed by two mutually perpendicular fastening belts 13, and the outermost layers of the two fastening belts 13 are in contact with the inner circle of the ball bulkhead 11; a water tank filling and drainage pipe 21 for injecting and discharging ballast water in the cabin is installed at the lower position of the ball bulkhead 11, and a water tank filling and drainage pipe 21 for injecting and discharging ballast water in the cabin is installed at the upper position of the ball bulkhead 11. A balloon injection and exhaust pipe 22 and a water tank injection and exhaust pipe 23 are installed, a balloon ventilation hose 24 is installed between the balloon injection and exhaust pipe 22 and the balloon, a barometer 32 is installed on the balloon injection and exhaust pipe 22, a flow meter 31 is installed on the water tank injection and exhaust pipe 21, a pressure gauge 33 is installed on the water tank injection and exhaust pipe 23, and a laser rangefinder 34 is installed on the bulkhead in the form of a cabin penetration part; a high-pressure one-way drain valve 4 is also installed below the ball bulkhead 11 next to the water tank injection and exhaust pipe 21.

[0048] The spherical cabin wall 11 adopts a spherical thin shell pressure cabin structure.

[0049] The balloon wall 12 adopts a spherical thin-wall structure.

[0050] The balloon wall 12 and the ball cabin wall 11 are installed concentrically.

[0051] The balloon wall 12 is made of a high-strength and high-elasticity rubber material.

[0052] The fastening belt 13 is a retractable rubber ring, and a plurality of water flow holes are formed on the fastening belt 13 .

[0053] The balloon ventilation hose 24 is made of a flexible high-strength hose.

[0054] The length of the balloon ventilation hose 24 is greater than the radius of the balloon cabin.

[0055] The high-pressure one-way drain valve 4 is opened in the state of emergency blowing off the ultra-high internal pressure and drains water outside the cabin.

[0056] The specific structure and function of the buoyancy regulating water tank for a self-propelled model described in the present invention are as follows:

[0057] Its main components and layout are described as follows:

[0058] It includes a composite water tank component, a water and gas pipeline component, a sensor component and a high-pressure one-way drain valve 4.

[0059] The composite water tank assembly includes a ball tank wall 11 , a balloon wall 12 and a fastening belt 13 .

[0060] The spherical bulkhead 11 is a spherical thin-shell pressure-resistant cabin.

[0061] The balloon wall 12 is a spherical thin-wall structure with uniform thickness, made of a high-strength and high-elasticity rubber material, and is located in the balloon cabin.

[0062] The fastening belt 13 is a retractable rubber ring with a plurality of water holes for fixing the position of the balloon.

[0063] There are two fastening belts 13 which are perpendicular to each other. The inner circle and the outer circle of the fastening belt 13 are respectively fixed on the balloon wall 12 and the inner wall of the ball cabin, and the plane where they are located passes through the center of the balloon and the ball cabin wall 11.

[0064] During normal use, the balloon is filled with high-pressure gas, which makes its surface hard and can effectively resist the influence of the tension of the fastening belt 13 and the water pressure in the cabin on the balloon shape, and the balloon always maintains a spherical shape.

[0065] When the balloon contracts, the lashing belt 13 is stretched and subjected to its lashing force. The position constraint force of the lashing belt 13 on the balloon is much greater than the influence of the gravity of the water in the cabin. The lashing belt 13 is symmetrical about the center of the ball, and the balloon is always at the same center as the cabin when it contracts.

[0066] The water-gas pipeline assembly includes a water tank filling and draining pipe 21 , a balloon filling and exhausting pipe 22 , a water tank filling and exhausting pipe 23 and a balloon ventilation hose 24 .

[0067] The water tank filling and drainage pipe 21 is located below the spherical bulkhead 11 and is used for the injection and discharge of ballast water in the tank.

[0068] The balloon injection and exhaust pipe 22 is installed above the balloon cabin wall 11 and is used for injecting and exhausting the gas in the balloon.

[0069] The water tank injection and exhaust pipe 23 is installed above the ball cabin wall 11 and is used to inject and exhaust gas into the gap between the balloon and the ball cabin.

[0070] The balloon ventilation hose 24 is a flexible high-strength hose with a length slightly larger than the radius of the spherical cabin. It is located in the spherical cabin, and its two ends are respectively connected to the balloon injection and exhaust pipe 22 and the balloon to achieve communication between the gas outside the cabin and the gas inside the balloon.

[0071] The sensor assembly includes a flow meter 31 , a barometer 32 , a pressure gauge 33 and a laser rangefinder 34 .

[0072] The flow meter 31 is installed on the water filling and drainage pipe outside the cabin to measure the water volume in the cabin.

[0073] The barometer 32 is installed on the balloon injection and exhaust pipe 22 outside the cabin to measure the gas pressure inside the balloon.

[0074] The pressure gauge 33 is installed on the liquid tank filling and exhaust pipe outside the cabin to measure the pressure inside the cabin.

[0075] The laser rangefinder 34 is installed on the cabin wall in the form of a cabin penetration component. The laser emission direction passes through the center of the balloon and is used to measure the distance between the balloon and the cabin wall 11.

[0076] The high-pressure one-way drain valve 4 is installed under the water tank and can only be opened in an emergency to blow off the ultra-high internal pressure and drain water outside the tank.

[0077] In actual working process:

[0078] In order to adapt to the narrow cabin space of the self-propelled model, this device improves the integration of the equipment and realizes multiple uses:

[0079] (a) Buoyancy adjustment (constant center of gravity).

[0080] Before launching, high-pressure gas is filled into the balloon, and a vacuum is created between the balloon and the bulkhead through the tank filling and exhaust pipe.

[0081] When buoyancy adjustment is needed underwater, the water pump draws water from outside into the cabin, squeezing the airbag to cause it to shrink adaptively. The space between the balloon and the bulkhead is completely filled with water, eliminating the free liquid surface.

[0082] The high-pressure airbag has a hard surface, and the tension of the tie strap 13 has little effect on the deformation of the balloon. During the contraction process, the balloon remains spherical. The tie straps 13 are evenly arranged, and the tension on the four sides of the balloon is balanced, so that the balloon is maintained in the center of the spherical cabin. The ballast water is evenly wrapped around the balloon, and the center of gravity of the spherical cabin is constant.

[0083] The drainage process follows the same principle.

[0084] Therefore, in this application, the free liquid surface in the cabin is eliminated, the center of gravity position is kept constant during buoyancy adjustment, interference with test measurements is eliminated, and the level of precise control is improved.

[0085] (2) Adjustment of center of gravity.

[0086] After the buoyancy adjustment is completed, the balloon is spherical and the space between the balloon and the bulkhead is filled with water. The principle is shown in the previous section.

[0087] When the center of gravity needs to be adjusted, gas is injected and discharged into the balloon and the cabin respectively to change the pressure difference between the inside and outside of the balloon, causing the balloon to shrink or expand. When the balloon shrinks, the water level in the cabin will drop, and the center of gravity of the cabin will move down. Conversely, the balloon expands and the center of gravity moves up, achieving a slight adjustment of the height of the center of gravity of the water tank. The balloon deformation is measured by the laser rangefinder 34, the water volume in the cabin is measured by the flowmeter 31, and then combined with the volume of the cabin, based on geometric knowledge, the current center of gravity position of the water in the cabin can be quantitatively obtained.

[0088] (3) Emergency blowing.

[0089] The buoyancy regulating water tank can also be used as an emergency water blowing tank, thereby improving the integration of the equipment and saving tank space.

[0090] In shallow waters, when emergency anti-sinking is needed, ultra-high pressure gas is injected into the cabin to push the high pressure one-way drain valve 4 to open, and the water is quickly drained out of the cabin to increase the positive buoyancy of the boat. At the same time, the water pump is superimposed to increase the anti-sinking drainage rate.

[0091] (IV) Performance improvement.

[0092] Actively injecting gas into the cabin to increase the internal pressure reduces the pressure difference between the inside and outside of the cabin, improves the pressure resistance of the bulkhead, and facilitates weight reduction of the spherical cabin. When underwater, the onboard gas source can be used for temporary inflation to increase the maximum diving depth in an emergency. In deep waters, it can also increase the drainage rate, reduce energy consumption and noise, and improve drainage performance.

[0093] The above description is an explanation of the present invention, not a limitation of the present invention. The scope of the present invention is defined in the claims. Any form of modification may be made within the scope of protection of the present invention.

Claims

1. A buoyancy regulating water tank for a self-propelled model, characterized in that: The invention comprises a balloon, wherein the inside of the balloon is filled with high-pressure gas, so that the surface of the balloon is hard; the outer surface of the balloon is provided with a balloon wall (12); the outer surface of the balloon wall (12) is fixed by two mutually perpendicular fastening belts (13); the outermost layers of the two fastening belts (13) are in contact with the inner circle of the ball bulkhead (11); a water tank filling and drainage pipe (21) for injecting and discharging ballast water in the cabin is installed below the ball bulkhead (11); a balloon filling and exhaust pipe (22) and a water tank filling and exhaust pipe (23) are installed above the ball bulkhead (11); The invention relates to a gas injection and exhaust pipe (23), a gas balloon ventilation hose (24) is installed between the gas injection and exhaust pipe (22) and the gas balloon, a barometer (32) is installed on the gas injection and exhaust pipe (22), a flow meter (31) is installed on the water tank gas injection and exhaust pipe (21), a pressure gauge (33) is installed on the water tank gas injection and exhaust pipe (23), and a laser rangefinder (34) is installed on the bulkhead in the form of a through-cabin component; a high-pressure one-way drainage valve (4) is also installed below the ball bulkhead (11) located next to the water tank gas injection and exhaust pipe (21).

2. A buoyancy regulating water tank for a self-propelled model as claimed in claim 1, characterized in that: The spherical cabin wall (11) adopts a spherical thin-shell pressure-resistant cabin structure.

3. A buoyancy regulating water tank for a self-propelled model as claimed in claim 1, characterized in that: The balloon wall (12) adopts a spherical thin-wall structure.

4. A buoyancy regulating water tank for a self-propelled model as claimed in claim 1, characterized in that: The balloon wall (12) and the ball cabin wall (11) are installed concentrically.

5. The buoyancy regulating water tank for a self-propelled model as claimed in claim 1, characterized in that: The balloon wall (12) is made of a high-strength and high-elasticity rubber material.

6. The buoyancy regulating water tank for a self-propelled model as claimed in claim 1, characterized in that: The fastening belt (13) is a retractable rubber ring, and a plurality of water flow holes are provided on the fastening belt (13).

7. The buoyancy regulating water tank for a self-propelled model as claimed in claim 1, characterized in that: The balloon ventilation hose (24) is a flexible high-strength hose.

8. The buoyancy regulating water tank for a self-propelled model as claimed in claim 1, characterized in that: The length of the balloon ventilation hose (24) is greater than the radius of the balloon cabin.

9. The buoyancy regulating water tank for a self-propelled model as claimed in claim 1, characterized in that: The high-pressure one-way drain valve (4) is opened in a state of emergency blowing off the ultra-high internal pressure, and drains water outside the cabin.

10. A method for using the buoyancy regulating water tank for a self-propelled model as claimed in claim 1, characterized in that: When buoyancy adjustment is required: Before launching, fill the balloon with high-pressure gas, and draw a vacuum between the balloon and the bulkhead through the tank filling and exhaust pipe; When buoyancy adjustment is needed underwater, the water pump draws water from outside into the cabin, squeezing the airbag to cause it to shrink adaptively. The space between the balloon and the bulkhead is completely filled with water, eliminating the free liquid surface. The high-pressure airbag has a hard surface, and the tension of the fastening belt (13) has little effect on the deformation of the airbag. During the contraction process, the airbag is always spherical and the center of gravity is constant. When center of gravity adjustment is required: After the buoyancy adjustment is completed, the balloon is spherical, and the space between the balloon and the cabin wall is filled with water. When the center of gravity needs to be adjusted, gas is injected and discharged into the balloon and the cabin respectively to change the pressure difference between the inside and outside of the balloon, causing the balloon to shrink or expand. When the balloon shrinks, the water level in the cabin will drop, and the center of gravity of the spherical cabin will move down; conversely, when the balloon expands, the center of gravity moves up, thereby achieving a slight adjustment of the height of the center of gravity of the water tank. The balloon deformation is measured by a laser rangefinder (34), and the water volume in the cabin is measured by a flowmeter (31). Combined with the volume of the spherical cabin, based on geometric knowledge, the current center of gravity position of the water in the cabin can be quantitatively obtained, thereby achieving a function of quantitative center of gravity adjustment. When emergency blowing is required: In shallow waters, the buoyancy regulating water tank also serves as an emergency water blowing tank. When emergency anti-sinking is required, ultra-high pressure gas is injected into the tank to push the high pressure one-way drainage valve (4) to open, and the water is quickly discharged outside the tank to increase the positive buoyancy of the boat body. When you need a performance boost: Actively injecting gas into the cabin to increase the internal pressure reduces the pressure difference between the inside and outside of the cabin, improves the pressure resistance of the bulkhead, and facilitates weight reduction of the spherical cabin. When underwater, the boat-borne gas source can be used for temporary inflation to increase the maximum diving depth in an emergency. In deep waters, it can also increase the drainage rate, reduce energy consumption, and reduce noise, thereby improving drainage performance.

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