CN112319749A - Submersible underwater deep falling emergency floating device - Google Patents
Submersible underwater deep falling emergency floating device Download PDFInfo
- Publication number
- CN112319749A CN112319749A CN202011158368.2A CN202011158368A CN112319749A CN 112319749 A CN112319749 A CN 112319749A CN 202011158368 A CN202011158368 A CN 202011158368A CN 112319749 A CN112319749 A CN 112319749A
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- Prior art keywords
- floating device
- convergent
- submersible
- bulkhead
- divergent nozzle
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- 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
- B63G8/24—Automatic depth adjustment; Safety equipment for increasing buoyancy, e.g. detachable ballast, floating bodies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Emergency Lowering Means (AREA)
Abstract
An underwater deep falling emergency floating device for a submersible comprises a bulkhead, wherein a through hole is formed in the bulkhead, and a convergent-divergent nozzle penetrates through the through hole; the position, located on the inner side of the cabin wall, of the convergent-divergent nozzle is connected with a gas generator, an igniter and a reactant are arranged in the gas generator, and a double-layer filter screen is arranged at the position, communicated with the convergent-divergent nozzle, of the gas generator; the emergency floating device also comprises a control panel which is communicated with the detonation device through a lead; the convergent-divergent nozzle is positioned at the outer side of the cabin wall and is connected with an air bag, and an opening of the air bag is communicated with the convergent-divergent nozzle. The emergency floating device is arranged on the bulkhead of the submersible, so that buoyancy required by underwater deep falling of the submersible can be conveniently provided, deep falling recovery time is reduced, when the submersible suddenly falls deep underwater, the emergency floating device sends an ignition instruction, and the buoyancy required by deep falling recovery can be obtained within tens of milliseconds.
Description
Technical Field
The invention relates to the technical field of submersible floating devices, in particular to an underwater falling depth emergency floating device for a submersible.
Background
Under the influence of factors such as ocean internal waves, sea cliffs, and broken sea pipelines, the submersible may suddenly lose buoyancy when sailing underwater or performing work tasks, and the submersible falls deep and sinks sharply. At this time, necessary measures are taken to carry out deep-falling recovery on the submersible, and the common practice is to take measures to increase the buoyancy of the submersible or reduce the gravity of the submersible.
In the prior art, there are three main methods for increasing the buoyancy of a submersible or reducing the weight of the submersible:
(1) the method for changing the buoyancy of the leather bag adopts a pump to fill oil into the leather bag, so that the volume of water to be drained is increased, and the buoyancy is increased. However, the method depends on the combined action of a pump and a valve, and the requirement on energy is high.
(2) The method for blowing ballast water by compressed gas comprises air blowing and gas blowing, but the method has complicated device mechanism and control, needs a special ballast water tank and is not suitable for small-sized diving devices.
(3) The ballast weight reducing method is characterized in that the gravity floating of the submersible is reduced by abandoning ballast, the ballast block is generally abandoned by detonating an explosion bolt in emergency, but the explosion bolt is expensive in manufacturing cost, and the cost of the emergency floating method is higher. Moreover, the response time of the three methods is relatively long, and even the load-shedding and weight-reducing method needs several seconds to discard the response time of the action.
Disclosure of Invention
The applicant aims at the defects in the prior art and provides an underwater deep-falling emergency floating device of a submersible, so that the deep-falling recovery time can be effectively reduced, and the submersible is safer and more reliable to use.
The technical scheme adopted by the invention is as follows:
an underwater deep falling emergency floating device of a submersible comprises a bulkhead, wherein a through hole is formed in the bulkhead, a convergent-divergent nozzle penetrates through the through hole, a gas generator is connected to the position, located on the inner side of the bulkhead, of the convergent-divergent nozzle, an ignition device and a reactant are arranged in the gas generator, a double-layer filter screen is arranged at the position, communicated with the convergent-divergent nozzle, of the gas generator, and the emergency floating device further comprises a control panel which is communicated with the ignition device through a lead; the convergent-divergent nozzle is positioned at the outer side of the cabin wall and is connected with an air bag, and an opening of the air bag is communicated with the convergent-divergent nozzle.
The further technical scheme is as follows:
the scaling spray pipe sequentially comprises the following components from bottom to top: the gas generator comprises a contraction section, a straight pipe section and an expansion section, wherein the contraction section is connected with a shell of the gas generator, the straight pipe section is located in a through hole of a bulkhead, and the expansion section is connected with the bottom of the air bag.
The material of the convergent-divergent nozzle is titanium alloy.
And a supporting apron board is fixedly arranged outside the bulkhead and supports the air bag.
The airbag is disposed at a superstructure site of the submersible.
The number of the air bags is one or more.
The material of the air bag is engineering plastics.
And the top of the air bag is provided with a relief valve, and the relief valve is connected with the top surface of the air bag through a round nut.
And one side of the shell is hinged with an opening and closing door.
The outside of the air bag is covered with a metal protective net which is fixed on the outer side of the cabin wall.
The invention has the following beneficial effects:
the emergency floating device is compact and reasonable in structure and convenient to operate, buoyancy required by underwater falling depth of the submersible can be conveniently provided by arranging the emergency floating device on the bulkhead of the submersible, the falling depth recovery time is shortened, when the submersible suddenly falls deep underwater, the emergency floating device sends an ignition instruction, and the buoyancy required by the falling depth recovery can be obtained within tens of milliseconds.
Meanwhile, the invention has the following advantages:
the invention has strong adaptability and can be used on large-scale diving devices and small-scale diving devices;
the invention has rapid response, and can obtain the buoyancy required by the floating of the submersible within tens of milliseconds;
the invention also has the advantages of simple structure, convenient use and maintenance, low cost and the like.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a diagram of the application of the present invention (before ignition).
Fig. 3 is a diagram of the application of the present invention (after ignition).
Wherein: 1. a bulkhead; 2. supporting the apron board; 3. an air bag; 4. a metal protective net; 5. a round nut; 6. a relief valve; 7. an expansion section; 8. a straight pipe section; 9. a contraction section; 10. a convergent-divergent nozzle; 11. a screw; 12. opening and closing the door; 13. a gas generator; 14. a detonator device; 15. a reactant; 16. a gas generator housing; 17. a lead wire; 18. a control panel; 19. a double-layer filter screen; 20. provided is a submersible.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1, fig. 2 and fig. 3, the underwater deep-falling emergency floating device of the submersible of the present embodiment includes a bulkhead 1, a through hole is formed on the bulkhead 1, the through hole passes through a convergent-divergent nozzle 10, the convergent-divergent nozzle 10 is connected with a gas generator 13 at a position inside the bulkhead 1, an igniter 14 and a reactant 15 are arranged inside the gas generator 13, a double-layer filter screen 19 is installed at a position where the gas generator 13 is communicated with the convergent-divergent nozzle 10, the emergency floating device further includes a control panel 18, and the control panel 18 is communicated with the igniter 14 through a lead 17; the convergent-divergent nozzle 10 is connected with the airbag 3 at a position outside the bulkhead 1, and the opening of the airbag 3 is communicated with the convergent-divergent nozzle 10.
The convergent-divergent nozzle 10 sequentially comprises from bottom to top: a contraction section 9, a straight pipe section 8 and an expansion section 7, wherein the contraction section 9 is connected with the gas generator shell 16, the straight pipe section 8 is positioned in the through hole of the bulkhead 1, and the expansion section 7 is connected with the bottom of the airbag 3.
The material of convergent-divergent nozzle 10 is titanium alloy.
The exterior of the bulkhead 1 is fixedly provided with a supporting skirt board 2, and the supporting skirt board 2 supports an air bag 3.
The airbag 3 is disposed at a superstructure site of the submersible vehicle 20.
The number of the air bags 3 is one or more.
The material of the air bag 3 is engineering plastics.
The top of the air bag 3 is provided with a relief valve 6, and the relief valve 6 is connected with the top surface of the air bag 3 through a round nut 5.
One side of the gas generator 13 is hinged with an opening and closing door 12.
The airbag 3 is covered with a metal protection net 4, and the metal protection net 4 is fixed on the outer side of the bulkhead 1.
The specific structure and function of the invention are as follows:
as shown in fig. 1, the emergency floating device mainly includes an airbag 3, a convergent-divergent nozzle 10, a gas generator 13, a control panel 18, and the like.
The gas generator 13 is internally provided with an igniter 14 and a reactant 15, the reactant 15 coats the igniter 14, and the igniter 14 is connected with a control panel 18 through a lead 17.
As shown in figure 2, before the emergency floating device is ignited, when the submersible vehicle 20 falls deeply under water, the control panel 18 sends an ignition command, an electric signal is transmitted to the igniter 14 through the lead 17, the igniter 14 ignites after being electrified, then the reactant 15 is ignited, the reactant 15 is combusted to generate a large amount of nitrogen, the nitrogen enters the convergent-divergent nozzle 10 through the double-layer filter screen 19, the nitrogen is further accelerated in the convergent-divergent nozzle 10 and rapidly enters the air bag 3 to fill the air bag, the volume of the air bag 3 expands, the water discharge volume of the submersible vehicle 20 is increased, and buoyancy floating is achieved. The state of the emergency floating device after ignition is shown in figure 3.
The air bag 3 is arranged at a superstructure position of the submersible vehicle 20 and supported by the supporting skirt 2, and a metal protection net 4 is arranged at the periphery of the air bag 3 in order to prevent marine foreign objects from damaging the air bag 3.
The number of the air bags 3 can be one or more.
The arrangement of the airbag 3 is such that the center of buoyancy B and the center of gravity G of the entire submersible vehicle 20 remain on a vertical line after inflation of the airbag 3 (fig. 3).
The increased displacement volume of all the bladders 3 after inflation is 2% to 3% of the displacement of the submersible vehicle 20.
The air bag 3 is made of engineering plastics, is resistant to seawater corrosion and has certain tensile strength.
The top of the air bag 3 is provided with a relief valve 6, the relief valve 6 is connected with the air bag 3 through a round nut 5, after one-time ignition and floating, the submersible 20 is in a water surface state, and the relief valve 6 is opened at the moment to release nitrogen in the air bag 3.
The convergent-divergent nozzle 10 differs from a conventional laval nozzle which is composed of three parts, a throat part and an expansion part 7, the convergent-divergent nozzle 10 changes the throat part of the conventional laval nozzle into a long straight pipe section 8, and the straight pipe section 8 is welded to a bulkhead 1 of a submersible vehicle 20. The convergent-divergent nozzle 10 is composed of a contraction section 9, a straight pipe section 8 and an expansion section 7, wherein the contraction section 9 is connected with a gas generator shell 16, and the expansion section 7 is connected with the bottom of the air bag 3. The convergent-divergent nozzle 10 is made of titanium alloy and can resist seawater corrosion.
The opening and closing door 12 is connected with the gas generator 13 through a screw 11, when one-time ignition floating is finished, the opening and closing door 12 is opened, reaction products in the gas generator 13 are removed, and the igniter 14 and the reactant 15 are reinstalled for the next use. The reactant 15 is heated (burned) to initiate a rapid decomposition reaction to generate a large amount of nitrogen, the amount of the reactant 15 should be strictly controlled in practical operation, and the limit pressure generated by one reaction of the reactant 15 should not exceed the design pressure of the airbag 3.
In the actual use process:
when the submersible vehicle 20 falls deeply under water, the control panel 18 of the emergency floating device sends an ignition instruction, an electric signal is transmitted to the igniter 14 through the lead 17, the igniter 14 is electrified and then ignites, then the reactant 15 in the gas generator 13 is ignited, the reactant 15 is combusted to generate a large amount of nitrogen, the nitrogen enters the convergent-divergent nozzle 10 through the double-layer filter screen 19, the nitrogen is further accelerated in the convergent-divergent nozzle 10 and rapidly enters the air bag 3 to fill the air bag 3, the volume of the air bag 3 is expanded, the drainage volume of the submersible vehicle 20 is increased, and buoyancy floating is achieved. The pressure of seawater outside the air bag 3 is continuously reduced along with the continuous upward floating of the submersible vehicle 20, the air bag 3 is continuously expanded, the water discharge volume is further increased, the buoyancy of the submersible vehicle 20 is also gradually increased, the submersible vehicle 20 is accelerated to upward float and rapidly pass through a dangerous area, the resistance borne by the submersible vehicle 20 is also rapidly increased along with the increase of the speed of the submersible vehicle 20, finally, the gravity, the buoyancy and the resistance are balanced, and the submersible vehicle 20 is braked by other means at the moment to be decelerated and upward float to the water surface.
When the submersible vehicle 20 suddenly falls deep under water, the emergency floating device sends an ignition instruction, and buoyancy required by deep recovery can be obtained within tens of milliseconds.
The invention has strong adaptability and can be used on large-scale diving devices and small-scale diving devices; the response is quick, and the buoyancy required by the floating of the submersible vehicle 20 can be obtained within tens of milliseconds; in addition, the invention has the advantages of simple structure, convenient use and maintenance, low cost and the like.
The above description is intended to be illustrative and not restrictive, and the scope of the invention is defined by the appended claims, which may be modified in any manner within the scope of the invention.
Claims (10)
1. The utility model provides a submarine falls dark emergent floating device under water, includes bulkhead (1), its characterized in that: the emergency floating device comprises a bulkhead (1), a through hole is formed in the bulkhead (1), a convergent-divergent nozzle (10) penetrates through the through hole, a gas generator (13) is connected to the position, located on the inner side of the bulkhead (1), of the convergent-divergent nozzle (10), an igniter (14) and a reactant (15) are arranged inside the gas generator (13), a double-layer filter screen (19) is installed at the position, communicated with the convergent-divergent nozzle (10), of the gas generator (13), the emergency floating device further comprises a control panel (18), and the control panel (18) is communicated with the igniter (14) through a lead (17); the convergent-divergent nozzle (10) is positioned at the outer side of the bulkhead (1) and is connected with an air bag (3), and an opening of the air bag (3) is communicated with the convergent-divergent nozzle (10).
2. A submersible underwater deep-falling emergency floating device according to claim 1, wherein: the convergent-divergent nozzle (10) sequentially comprises the following components from bottom to top: the gas generator comprises a contraction section (9), a straight pipe section (8) and an expansion section (7), wherein the contraction section (9) is connected with a gas generator shell (16), the straight pipe section (8) is located in a through hole of a bulkhead (1), and the expansion section (7) is connected with the bottom of an air bag (3).
3. A submersible underwater deep-falling emergency floating device according to claim 1, wherein: the material of the convergent-divergent nozzle (10) is titanium alloy.
4. A submersible underwater deep-falling emergency floating device according to claim 1, wherein: and a supporting apron board (2) is fixedly arranged outside the bulkhead (1), and the supporting apron board (2) supports the air bag (3).
5. A submersible underwater deep-falling emergency floating device according to claim 1, wherein: the airbag (3) is arranged at a superstructure location of a submersible vehicle (20).
6. A submersible underwater deep-falling emergency floating device according to claim 1, wherein: the number of the air bags (3) is one or more.
7. A submersible underwater deep-falling emergency floating device according to claim 1, wherein: the air bag (3) is made of engineering plastics.
8. A submersible underwater deep-falling emergency floating device according to claim 1, wherein: the top of gasbag (3) is installed bleeder valve (6), bleeder valve (6) link to each other with gasbag (3) top surface through round nut (5).
9. A submersible underwater deep-falling emergency floating device according to claim 1, wherein: one side of the gas generator (13) is hinged with an opening and closing door (12).
10. A submersible underwater deep-falling emergency floating device according to claim 1, wherein: the air bag (3) is covered with a metal protective net (4), and the metal protective net (4) is fixed on the outer side of the bulkhead (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011158368.2A CN112319749A (en) | 2020-10-26 | 2020-10-26 | Submersible underwater deep falling emergency floating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011158368.2A CN112319749A (en) | 2020-10-26 | 2020-10-26 | Submersible underwater deep falling emergency floating device |
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| Publication Number | Publication Date |
|---|---|
| CN112319749A true CN112319749A (en) | 2021-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011158368.2A Pending CN112319749A (en) | 2020-10-26 | 2020-10-26 | Submersible underwater deep falling emergency floating device |
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| CN (1) | CN112319749A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113148084A (en) * | 2021-05-31 | 2021-07-23 | 中国船舶科学研究中心 | Blasting sheet type emergency floating device and installation method thereof |
| CN113479310A (en) * | 2021-08-16 | 2021-10-08 | 中国船舶科学研究中心 | Submersible underwater emergency self-rescue device |
| CN114954873A (en) * | 2022-05-30 | 2022-08-30 | 大连海事大学 | Sodium azide pyrolysis drive type buoyancy regulating system applied to submersible |
| CN115303456A (en) * | 2022-10-11 | 2022-11-08 | 山东省科学院海洋仪器仪表研究所 | Reverse-pushing type emergency load rejection device for underwater vehicle |
| CN117208175A (en) * | 2023-10-12 | 2023-12-12 | 广州航海学院 | Underwater robot |
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| KR20200051128A (en) * | 2018-11-03 | 2020-05-13 | 이정용 | Air bag with an air pump to prevent sinking |
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| CN85106861A (en) * | 1985-09-17 | 1987-04-01 | 哈尔滨船舶工程学院 | Fast speed buoyancy anti-sink device for submarines |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113148084A (en) * | 2021-05-31 | 2021-07-23 | 中国船舶科学研究中心 | Blasting sheet type emergency floating device and installation method thereof |
| CN113148084B (en) * | 2021-05-31 | 2022-04-12 | 中国船舶科学研究中心 | Blasting sheet type emergency floating device and installation method thereof |
| CN113479310A (en) * | 2021-08-16 | 2021-10-08 | 中国船舶科学研究中心 | Submersible underwater emergency self-rescue device |
| CN113479310B (en) * | 2021-08-16 | 2022-06-14 | 中国船舶科学研究中心 | Submersible underwater emergency self-rescue device |
| CN114954873A (en) * | 2022-05-30 | 2022-08-30 | 大连海事大学 | Sodium azide pyrolysis drive type buoyancy regulating system applied to submersible |
| CN114954873B (en) * | 2022-05-30 | 2023-07-25 | 大连海事大学 | Sodium azide pyrolysis driving type buoyancy adjusting system applied to submersible |
| CN115303456A (en) * | 2022-10-11 | 2022-11-08 | 山东省科学院海洋仪器仪表研究所 | Reverse-pushing type emergency load rejection device for underwater vehicle |
| CN115303456B (en) * | 2022-10-11 | 2023-02-24 | 山东省科学院海洋仪器仪表研究所 | Reverse-pushing type emergency load rejection device for underwater vehicle |
| CN117208175A (en) * | 2023-10-12 | 2023-12-12 | 广州航海学院 | Underwater robot |
| CN117208175B (en) * | 2023-10-12 | 2024-04-09 | 广州航海学院 | Underwater robot |
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Application publication date: 20210205 |