CN113815824A - Energy-saving buoyancy adjusting device for deep and far sea equipment - Google Patents
Energy-saving buoyancy adjusting device for deep and far sea equipment Download PDFInfo
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- CN113815824A CN113815824A CN202110866294.6A CN202110866294A CN113815824A CN 113815824 A CN113815824 A CN 113815824A CN 202110866294 A CN202110866294 A CN 202110866294A CN 113815824 A CN113815824 A CN 113815824A
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- Prior art keywords
- plunger pump
- leather bag
- deep
- motor
- energy
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- 239000010985 leather Substances 0.000 claims abstract description 36
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 33
- 230000001105 regulatory effect Effects 0.000 claims abstract description 21
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000003921 oil Substances 0.000 claims description 24
- 230000005611 electricity Effects 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000008859 change Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000013535 sea water Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 3
- 239000002775 capsule Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000013575 regulation of buoyancy Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
- B63G8/14—Control of attitude or depth
- B63G8/22—Adjustment of buoyancy by water ballasting; Emptying equipment for ballast tanks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C1/00—Reciprocating-piston liquid engines
- F03C1/26—Reciprocating-piston liquid engines adapted for special use or combined with apparatus driven thereby
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Aviation & Aerospace Engineering (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention relates to a buoyancy regulating device, in particular to an energy-saving buoyancy regulating device for deep and far sea equipment, which comprises a closed container and an outer skin bag positioned outside the closed container, an inner leather bag for containing hydraulic oil, a bidirectional plunger pump, and an electric motor, a power supply and a controller which are electrically connected are arranged in the closed container, the inner leather bag and the outer leather bag are connected through a pipeline, the bidirectional plunger pump is connected in series on the pipeline of the inner leather bag and the pipeline of the outer leather bag, the motor is connected with the bidirectional plunger pump and drives each other, a one-way valve which is communicated with the outer leather bag is also arranged on a pipeline between the outer leather bag and the bidirectional plunger pump, electromagnetic valves are arranged at two ends of the one-way valve, this solenoid valve and power and controller electric connection, the buoyancy adjusting device of this scheme can reduce the energy loss of deep and open sea equipment at the in-process that sinks to carry out the accurate control to the buoyancy of the in-process that sinks simultaneously.
Description
Technical Field
The invention relates to a buoyancy regulating device, in particular to an energy-saving buoyancy regulating device for deep and far sea equipment.
Background
The buoyancy regulating device is an important component of the underwater vehicle, the heaving of the underwater vehicle can be conveniently controlled through the buoyancy regulating device, the buoyancy regulating device usually needs to work in deep sea, the main working principle of the buoyancy regulating device is shown in figure 1, a dotted line is a metal shell to isolate internal elements of the buoyancy regulating device from sea water, the pressure in an outer leather bag is increased along with the increase of water depth, hydraulic oil is converted in the inner leather bag and the outer leather bag to cause the change of the whole volume, and therefore the buoyancy of the buoyancy regulating device is regulated.
Specifically, the existing hydraulic buoyancy regulating device generally adopts a one-way pump to discharge oil from an inner leather bag to an outer leather bag, so that the overall volume is increased, and the buoyancy is increased; after the electromagnetic valve is opened, hydraulic oil in the outer leather bag enters the inner leather bag through the electromagnetic valve, and buoyancy is reduced. In this way, each time the pump discharges oil, power is consumed, external high-pressure oil enters the low-pressure cavity of the inner leather bag, and hydraulic energy is converted into heat. For deep and open sea detection, the power of the pump for discharging oil is consumed no matter how the efficiency of the hydraulic element is improved because the electric quantity of the carried battery is always limited and is difficult to supplement, and the service time of the buoyancy regulating device is limited.
Meanwhile, in the process of buoyancy reduction, due to the fact that the external pressure is high, the flow rate of hydraulic oil entering the inner bladder through the electromagnetic valve is very high, and the size is difficult to control accurately, namely the buoyancy of the equipment is difficult to control accurately when the equipment sinks. If the fixed throttling opening is adopted, the flow velocity difference is too large for different sea depths; the adoption of a proportional throttle valve increases the volume and the power consumption, and the increase of elements also reduces the reliability of the system.
Disclosure of Invention
The invention aims to provide a buoyancy regulating device, which is used for reducing energy loss of deep and open sea equipment in a sinking process and accurately controlling the sinking buoyancy.
In order to reach above-mentioned purpose, this scheme provides an energy-conserving buoyancy adjusting device for deep and deep sea equipment, include airtight container and the crust bag that is located the airtight container outside, be provided with the interior crust bag, the two-way plunger pump and electric connection's of splendid attire hydraulic oil motor, power and controller in the airtight container, interior crust bag passes through the tube coupling with the crust bag, the two-way plunger pump concatenates on the pipeline of crust bag and crust bag, the motor is connected and the mutual drive with the two-way plunger pump, still be provided with the check valve of outside crust bag circulation on the pipeline between crust bag and two-way plunger pump, the check valve both ends are provided with the solenoid valve, this solenoid valve and power and controller electric connection.
Preferably, the bidirectional plunger pump is a bidirectional axial plunger pump.
As the preferred scheme, the bidirectional axial plunger pump adopts a swash plate plunger pump, and the oil inlet and the oil outlet of the swash plate plunger pump are symmetrically designed, so that the four-quadrant operation function can be realized, namely, the bidirectional axial plunger pump can operate in the forward and reverse directions, and each rotating direction can be used as a pump or a motor.
Preferably, the motor is a dc brushless servo motor.
Preferably, a pressure sensor for detecting the pressure of the seawater is further provided outside the closed container, and the pressure sensor is electrically connected to the controller, and further detects the change of the water depth according to the relation between the pressure and the water depth.
Preferably, the outer bladder is at a higher pressure than the inner bladder during the lifting cycle after the beginning of sinking. Thus, when the oil in the inner skin bag enters the outer skin bag to increase the buoyancy, the motor drives the pump to consume energy; when the oil in the outer leather bag enters the inner leather bag to reduce the buoyancy, particularly when the external pressure reaches a certain degree such as 1MPa, namely when the water depth exceeds 100 m, the hydraulic oil can drive the motor to rotate to drive the generator to generate electricity.
The beneficial effect of this scheme lies in: by adopting a swash plate plunger pump form, the oil inlet and the oil outlet are symmetrically designed, forward and reverse operation is realized, each rotating direction can be used as a pump or a motor, when the rotating direction is positive, the rotating direction is used as the pump, the motor drives the pump to convey low-pressure oil in the inner leather bag into the high-pressure outer leather bag, and the buoyancy is increased; when the buoyancy needs to be reduced, high-pressure oil in the outer leather bag flows to the low-pressure inner leather bag through the bidirectional plunger pump, the bidirectional plunger pump is driven to rotate reversely, the generator is driven to rotate to generate electricity, the electricity generated by the bidirectional plunger pump charges a power supply of the buoyancy adjusting device, and energy recovery is achieved. The oil pump can be used as a pump for pumping oil into the outer skin bag, and can also be driven by a hydraulic motor to be used as a motor. Under the condition of a pump, the total efficiency of the whole set of equipment for pumping oil outwards is about 60%, and under the condition of a motor, the total efficiency of the energy recovery of the whole set of equipment is 50%. Thus, the first round energy recovery is 30% of the original electric quantity, and 30% of the 30% electric quantity can be recovered again. The energy can be recycled by about 42 percent after being accumulated circularly; in addition, this application controls the motor electricity generation load capacity through the controller, controls the speed that outside fluid entered the inner leather bag, realizes the accurate regulation of buoyancy.
Drawings
Fig. 1 is a schematic view of the structure of a product described in the background art.
Fig. 2 is a schematic structural diagram of an embodiment of the present invention.
Fig. 3 is a diagram illustrating the four quadrant operation requirement of the bi-directional plunger pump according to the embodiment of the present invention.
The device comprises a closed container 1, an outer skin capsule 2, an inner skin capsule 3, a bidirectional plunger pump 4, a motor 5, a power supply 6, an electromagnetic valve 7, a one-way valve 8 and a pressure sensor 9.
Detailed Description
The following is further detailed by way of specific embodiments:
as shown in fig. 2 and 3, this embodiment provides an energy-saving buoyancy adjusting device for deep and open sea equipment, which includes a closed container 1, i.e. a dashed square in fig. 2, an outer bladder 2, an inner bladder 3, a bidirectional plunger pump 4, a motor 5, a power supply 6 and a controller, wherein the outer bladder 2 and the inner bladder 3 are filled with hydraulic oil and are communicated with each other through a pipeline, the inner bladder 3 and the outer bladder 2 are respectively located inside and outside the closed container 1, the closed container 1 is made of a pressure-resistant metal casing, the motor 5, the power supply 6 and the controller are electrically connected and arranged in the closed container 1, the motor 5 is preferably a dc brushless servo motor, the bidirectional plunger pump 4 is made of a bidirectional axial plunger pump, preferably a swash plate plunger pump with symmetrical oil inlets and oil outlets, the bidirectional plunger pump 4 is located in the closed container 1 and is connected in series on the pipeline between the inner bladder 3 and the outer bladder 2, the motor 5 and the bidirectional plunger pump 4 are mechanically connected and can be driven with each other, the motor 5 can drive the bidirectional plunger pump 4 to be used as a pump, the bidirectional plunger pump 4 can also be used as a motor reverse driving motor 5, the outer skin is further provided with a one-way valve 8 communicated to an outer skin bag on a pipeline between the outer skin 2 and the bidirectional plunger pump 4, two ends of the one-way valve 8 are provided with electromagnetic valves 7, and the electromagnetic valves 7 are electrically connected with a power supply and a controller. The wall of the closed container 1 is also provided with a pressure sensor 9, the pressure sensor 9 is electrically connected with the controller to sense the sea depth position, namely the pressure of the oil in the outer skin bag at the moment, and the pressure signal can be loaded to the motor 5 according to the external pressure through a preset program, so that the stable oil flow rate is obtained, and the accuracy of buoyancy adjustment is controlled.
The working principle of the scheme of the embodiment is as follows: the dotted line inner element is arranged in a closed container 1, the outer skin bag 2 is arranged in seawater, and the volume change of hydraulic oil in the outer skin bag 2 can cause the volume change of the outer skin bag 2, so that the total volume change of the outer skin bag and the equipment shell generates buoyancy change. Specifically, when the buoyancy needs to be increased, the motor 5 drives the bidirectional plunger pump 4 to rotate, and low-pressure hydraulic oil in the inner leather bag 3 is conveyed into the outer leather bag 2 through the one-way valve 8; when buoyancy needs to be reduced, the electromagnetic valve 7 is opened, high-pressure oil in the outer skin bag 2 enters the bidirectional plunger pump 4 through the electromagnetic valve 7, the bidirectional plunger pump 4 is driven to rotate, the motor 5 works in a generator mode at the moment, and the generated electricity charges the power supply 6. Under the power generation mode, the servo driver adopts a rotating speed closed-loop control method for the hydraulic motor to enable the motor to work at a stable rotating speed, and the working time of the motor is controlled by controlling the on-off time of the electromagnetic valve 7, so that the flow rate of hydraulic oil entering the inner leather bag 3 from the outer leather bag 2 through the hydraulic motor 4 can be accurately controlled, the total volume of the outer leather bag 2 and the closed container 1 can be accurately controlled, and the accurate adjustment of buoyancy can be realized. The servo driver can automatically give corresponding negative current to the motor according to the external pressure intensity when carrying out closed-loop control on the rotating speed of the hydraulic motor, the negative current is the current generated by the generator, and the energy can be recovered to a battery power supply after being rectified by the rectifier.
When underwater, the pressure of the outer skin bag 2 is always higher than that of the inner skin bag 3, and when oil in the inner skin bag 3 enters the outer skin bag 2 to increase buoyancy, the motor 5 drives the bidirectional plunger pump 4 to be used as a pump to consume energy; when the oil in the outer leather bag 2 enters the inner leather bag 3 to reduce the buoyancy, the hydraulic oil drives the bidirectional plunger pump 4 to rotate as a motor to drive the motor 5 to generate power. The exception is that when the apparatus is in a shallow water position such as just launching water, the seawater pressure around the outer skin bag 2 is still relatively low (for example, lower than 1MPa), the external pressure is not enough to drive the hydraulic motor to generate power or even to drive the hydraulic motor to rotate, so the bidirectional plunger pump 4 is required to be used as a pump to suck oil from the outer skin bag 2 to achieve the purpose of sinking, when sinking to a certain degree, the bidirectional plunger pump 4 can be used as a motor, so a pump capable of working in four quadrants is required, the four-quadrant working requirement is shown in fig. 3, the bidirectional axial plunger pump in the embodiment can realize the four-quadrant running function, i.e., the forward and reverse running, and each rotation direction can be used as a pump or a motor, and the detailed structure of the bidirectional plunger pump 4 is described in the applicant's chinese patent application CN201910785785.0 and is not described again.
It should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used broadly in the present invention, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (7)
1. The utility model provides a deep and deep sea equipment is with energy-conserving buoyancy regulating device, includes airtight container and the outer skin bag that is located airtight container outside, its characterized in that: be provided with the interior leather bag, the two-way plunger pump of splendid attire hydraulic oil and electric connection's motor, power and controller in the airtight container, interior leather bag passes through the tube coupling with the crust leather bag, the two-way plunger pump concatenates on the pipeline of interior leather bag and skin leather bag, the motor is connected and mutual drive with the two-way plunger pump, still be provided with the check valve of outside leather bag circulation on the pipeline between skin leather bag and two-way plunger pump, the check valve both ends are provided with the solenoid valve, this solenoid valve and power and controller electric connection.
2. The energy-saving buoyancy regulating device for the deep and open sea equipment according to claim 1, wherein: the bidirectional plunger pump is a bidirectional axial plunger pump.
3. The energy-saving buoyancy regulating device for the deep and open sea equipment according to claim 2, wherein: the bidirectional axial plunger pump adopts a swash plate plunger pump, and oil inlet and outlet ports of the bidirectional axial plunger pump are symmetrically designed.
4. The energy-saving buoyancy regulating device for the deep and open sea equipment according to claim 1, 2 or 3, wherein: the motor is a direct current brushless servo motor.
5. The energy-saving buoyancy regulating device for the deep and open sea equipment according to claim 1, 2 or 3, wherein: the outer bladder is always pressurized higher than the inner bladder during the lifting cycle after the beginning of sinking.
6. The energy-saving buoyancy regulating device for the deep and open sea equipment according to claim 1, 2 or 3, wherein: the pressure sensor is used for detecting the external pressure of the closed container and is electrically connected with the controller.
7. The energy-saving buoyancy regulating device for the deep and open sea equipment according to claim 4, wherein: when generating electricity, the servo driver of the direct current brushless servo motor adopts a rotating speed closed loop control method for the hydraulic motor, and the working time of the motor is controlled by controlling the on-off time of the electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110866294.6A CN113815824A (en) | 2021-07-29 | 2021-07-29 | Energy-saving buoyancy adjusting device for deep and far sea equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110866294.6A CN113815824A (en) | 2021-07-29 | 2021-07-29 | Energy-saving buoyancy adjusting device for deep and far sea equipment |
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| Publication Number | Publication Date |
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| CN113815824A true CN113815824A (en) | 2021-12-21 |
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| CN202110866294.6A Pending CN113815824A (en) | 2021-07-29 | 2021-07-29 | Energy-saving buoyancy adjusting device for deep and far sea equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115056949A (en) * | 2022-06-23 | 2022-09-16 | 杭州海易能机电技术有限公司 | Double-inner-outer-four-oil-bag buoyancy adjusting device |
| CN115071928A (en) * | 2022-06-23 | 2022-09-20 | 衡州机器(杭州)有限公司 | Inner and outer diaphragm buoyancy adjusting device |
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2021
- 2021-07-29 CN CN202110866294.6A patent/CN113815824A/en active Pending
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115056949A (en) * | 2022-06-23 | 2022-09-16 | 杭州海易能机电技术有限公司 | Double-inner-outer-four-oil-bag buoyancy adjusting device |
| CN115071928A (en) * | 2022-06-23 | 2022-09-20 | 衡州机器(杭州)有限公司 | Inner and outer diaphragm buoyancy adjusting device |
| CN115056949B (en) * | 2022-06-23 | 2024-04-09 | 杭州海易能机电技术有限公司 | Double-inner-outer four-oil-bag buoyancy adjusting device |
| CN115071928B (en) * | 2022-06-23 | 2024-04-12 | 衡州机器(杭州)有限公司 | Buoyancy adjusting device for inner diaphragm and outer diaphragm |
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