KR20160045394A - Underwater airbag system and control method thereof - Google Patents

Underwater airbag system and control method thereof Download PDF

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Publication number
KR20160045394A
KR20160045394A KR1020140140867A KR20140140867A KR20160045394A KR 20160045394 A KR20160045394 A KR 20160045394A KR 1020140140867 A KR1020140140867 A KR 1020140140867A KR 20140140867 A KR20140140867 A KR 20140140867A KR 20160045394 A KR20160045394 A KR 20160045394A
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South Korea
Prior art keywords
airbag
offshore structure
ignition
inflator
underwater
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KR1020140140867A
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Korean (ko)
Inventor
고진환
한상훈
박혜주
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한국해양과학기술원
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Priority to KR1020140140867A priority Critical patent/KR20160045394A/en
Publication of KR20160045394A publication Critical patent/KR20160045394A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
    • B63B43/02—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking
    • B63B43/10—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving buoyancy
    • B63B43/14—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving buoyancy using outboard floating members

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Air Bags (AREA)

Abstract

Disclosed are an underwater airbag system and a control method thereof. According to the present invention, the underwater airbag system includes: a sensor which senses the acceleration and inclination of an offshore structure or underwater equipment or an impact applied thereto; a control unit which determines whether the offshore structure or underwater equipment is capsized based on a signal from the sensor; and an airbag which is operated by the controller and is connected to an inflator to inflate in the water. The airbag generates buoyancy and reaction force in the opposite direction of the capsizal of the offshore structure or underwater equipment when inflating in the water. The present invention installs the airbag, which forms the buoyancy and reaction force in the opposite direction of the direction when inflating in the water, to prevent the capsizal or minimize damage thereof when the offshore structure or underwater equipment is capsized due to natural disasters such as earthquakes or underwater accidents which can be caused when the offshore structure or underwater equipment collides with a submarine.

Description

[0001] UNDERWATER AIRBAG SYSTEM AND CONTROL METHOD THEREOF [0002]

The present invention relates to an underwater air bag system and a control method thereof, and more particularly, to an underwater air bag system and a control method thereof, and more particularly, to an underwater air bag system and a control method thereof, To an underwater air bag system installed in a water infrastructure and a control method thereof.

The ocean development industry (ocean development industry) refers to the development industry to utilize the resources, energy and space possessed by the vast ocean, including development of resources and energy, development of resolution city, Line installation.

Resources and energy development areas include exploration, mining, dissolved material recovery, marine power generation and aquaculture (marine aquaculture) for submarine oil, natural gas, and submarine metal minerals. Maritime airport), resolution city, and underwater park. Marine civil engineering is divided into excavation, burial, and subsea pipeline development.

As marine development takes place in harsh natural conditions such as water pressure, waves, and limited visibility, offshore structures and water equipment are subject to natural disasters such as submarine collisions, , It is urgent to develop a technology that can prevent or minimize it.

Korean Patent Publication No. 2003-0006172 discloses an underwater motorcycle. In the underwater motor scooter of Patent Publication No. 2003-0006172, an airbag that is inflated to rise to the water surface in an emergency is installed. However, if a submerged tunnel or a marine construction robot is overturned, Airbag technology could not be applied to underwater tunnels or submarine robots.

(0001) Korean Patent Publication No. 2003-0006172 (published on Jan. 23, 2003)

SUMMARY OF THE INVENTION An object of the present invention is to provide an underwater airbag system and method for controlling an underwater airbag system that can prevent or minimize damage to an offshore structure or a watercraft due to a natural disaster such as an underwater accident or an earthquake .

According to the present invention, the above object can be achieved by a sensor installed in an offshore structure and a water-based equipment, the sensor detecting an acceleration, a lifting or an impact of the offshore structure and the water- A control unit for determining the overturn of the offshore structure and the heavy equipment according to a signal of the sensor; And an airbag that is operated by the control unit and connected to the inflator and expands in water, wherein the airbag forms a reaction force and a buoyancy force in the direction opposite to the overturning direction of the offshore structure and the water- The airbag system comprising:

The inflator comprising: an ignition expander for generating gas by gunpowder ignition so that the airbag forms a reaction force; And an inflator for supplying a compressed gas to the air bag to form buoyancy.

And a systole which is actuated by the control unit and which takes out the gas inside the airbag after the operation of the inflator.

The ignition expander is coupled to the airbag, the inflator inflator is connected to the airbag with a tube, and the airbag or igniter inflator can be connected to the offshore structure and the water infrastructure by a wire or chain.

The outer surface of the offshore structure and the underwater equipment may be provided with coupling means to which the airbag or the ignition expander is coupled so that the airbag inflates downward when igniting the explosive charge of the ignition expander.

Wherein the engaging means comprises: an insertion portion into which the airbag or the ignition inflator is detachably inserted; And a cover for restraining the downward movement of the airbag, wherein the airbag may be configured to be disengaged from the insert by a reaction force formed upon operation of the firing inflator.

The insertion portion may be formed such that a trigger inserted into the airbag or the ignition inflator is formed so as to prevent the airbag from being released, and the ignition bullet of the ignition inflator is ignited when the trigger is separated from the airbag or the ignition expander.

According to another aspect of the present invention, there is provided a method of controlling an air conditioner, comprising: a first sensor installed in an offshore structure and a water infrastructure, the first sensor detecting acceleration, leaning or impact of either the offshore structure or the water infrastructure; A second sensor for sensing an acceleration, a leaning or an impact of the other of the offshore structure and the heavy equipment; A controller for determining overturn of the offshore structure and the water-saving equipment according to the signals of the first sensor and the second sensor; And a first airbag and a second airbag, each of which is operated by the control unit and is connected to an inflator and inflated in water, wherein each of the first airbag and the second airbag inflates when the inflating direction of the offshore structure and the water- And forms a reaction force and a buoyancy force in the opposite direction to that of the air bag.

According to another aspect of the present invention, there is provided a method for controlling an offshore structure, the method comprising the steps of: determining whether an offshore structure and a watercraft are overturned by receiving a signal from a sensor; An ignition expansion step of operating the ignition inflator to generate a reaction force in a direction opposite to the rollover direction by the airbag when the overturning of the offshore structure and the water equipment is judged; A controller for receiving a signal from the sensor and determining whether the offshore structure and the heavy equipment are overturned; And an injection expansion step of increasing the buoyancy by the airbag by operating the injection inflator when it is determined that the offshore structure of the offshore structure and the underwater equipment is released. do.

And a shrinking step of, if it is determined that the overturning of the offshore structure and the water equipment is canceled, the control unit activating the systole to remove buoyancy by the airbag.

According to the present invention, by providing an air bag that forms a reaction force and a buoyancy in the direction opposite to the rollover direction when inflated, it is possible to prevent an offshore structure or a water supply equipment from being overturned due to a natural disaster such as a submarine collision or an earthquake Or minimizing the damage of the air bag, and a control method thereof.

1 is a view showing a state in which an underwater airbag system according to an embodiment of the present invention is installed in an underwater tunnel.
Fig. 2 is a schematic view showing a control flow of the underwater airbag system of Fig. 1; Fig.
Fig. 3 is a view showing the airbag and the coupling means of the underwater airbag system of Fig. 1; Fig.
Fig. 4 is a view showing a state in which the underwater air bag system of Fig. 1 forms a reaction force and buoyancy. Fig.
5 is a flowchart showing a control method of the underwater air bag system of FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, the well-known functions or constructions are not described in order to simplify the gist of the present invention.

The underwater air bag system and the control method thereof according to the present invention are designed to prevent or minimize damage when an offshore structure or a water infrastructure is overturned by a natural disaster such as an underwater accident such as a submarine collision or an earthquake.

FIG. 1 is a view showing a state in which an underwater airbag system according to an embodiment of the present invention is installed in an underwater tunnel, FIG. 2 is a schematic view showing a control flow of the underwater airbag system of FIG. 1, Fig. 4 is a view showing a state in which the underwater airbag system of Fig. 1 forms a reaction force and buoyancy, and Fig. 5 is a flowchart showing a control method of the underwater airbag system of Fig.

The ocean development industry (ocean development industry) refers to the development industry to utilize the resources, energy and space possessed by the vast ocean, including development of resources and energy, development of resolution city, Line installation.

As marine development takes place in harsh natural conditions such as water pressure, waves, and limited visibility, offshore structures and water equipment are subject to natural disasters such as submarine collisions, It is more harmful than the land environment. Therefore, it is necessary to prepare a technology that can prevent or minimize it.

When an external force is applied to an offshore structure (such as an underwater tunnel) or an underwater equipment (such as a marine fixed construction robot) due to an earthquake or a collision with a submarine, the flow of offshore structures and water- As shown in Fig.

The underwater airbag system (1) of the present invention is made to prevent movement and rotation of offshore structures and water equipment, or to minimize damage to offshore structures and water equipment. In the embodiment of the present invention, it is described that the underwater air bag system 1 is installed in the underwater tunnel 2.

As shown in Figs. 1, 2 and 3A, an underwater air bag system 1 according to an embodiment of the present invention is a system in which an underwater tunnel 2 is subjected to an ideal natural phenomenon or an external force due to an artificial accident The inflator 2 is constructed to prevent the overturning of the underwater tunnel 2 and includes the airbag 10, the inflator 40, the sensor 20, the control unit 30 and the retractor 50.

As shown in Figs. 2 and 3 (a), the airbag 10 is connected to the inflator 40 and is configured to expand in water, and is installed on the outer surface of the underwater tunnel 2. The airbag 10 is formed of relatively thin chemical fibers, occupies a small volume when not in use, and when used, gas is injected into the airbag 10 to occupy a relatively large volume.

The sensor 20 is arranged outside the underwater tunnel 2 in a configuration for sensing the acceleration of the underwater tunnel 2, the acceleration or the impact. In this case, the sensor 20 is installed in the waterproof box and may be installed in the partition wall of the underwater tunnel 2 to improve the waterproof capability. The sensor 20 may be any one of an acceleration sensor, a gyro sensor, and an impact sensor.

The controller 30 receives the signal of the sensor 20 and determines the rollover condition by the set judgment logic and automatically controls the operation of the inflator 40 and the systole 50 by the set operation logic.

As shown in FIG. 2, the inflator 40 comprises an ignition expander 40A and an inflator 40B.

As shown in Figs. 3 (a) and 3 (b), the ignition expander 40A is a structure for generating a gas by ignition of a gunpowder, and includes a body 40A1, an igniter 40A2 and an expanding compound 40A3 .

The body 40A1 is formed in a cup shape and accommodates therein an igniter 40A2 and an expanding compound 40A3. The airbag 10 is coupled to the body 40A1 in such a manner as to seal the inside of the body 40A1. Therefore, the body 40A1 protrudes in a convex form from one side of the airbag 10 and is connected to the underwater tunnel 2 by a wire W or a chain.

The expansion compound 40A3 forms a contact surface with the igniter 40A2 inside the body 40A1 and a chemical reaction that generates gas by explosion of the igniter 40A2 occurs. The expanding compound 40A3 may be provided to surround the outer surface of the igniter 40A2.

The expanding compound (40A3) is made by mixing sodium azide and iron oxide. Sodium azide (NaN3) is a substance used to instantaneously inflate an airbag in a vehicle, consisting of a compound of sodium (Na) and nitrogen (N). Sodium azide does not ignite at temperatures as high as 350 ° C and does not explode even when exposed to external impacts.

However, when a compound called iron oxide (iron oxide) is mixed, instantaneous high heat is generated upon explosion of the ignition device, resulting in flame. Sodium azide contains 65 percent by weight of nitrogen, which is decomposed within tens of milliseconds by the flame generated by ignition, producing a large amount of nitrogen gas. The generated nitrogen gas inflates the airbag 10.

The inflator 40B is configured to supply compressed air to the interior of the airbag 10 and is connected to the body 40A1 of the airbag 10 or the ignition inflator 40A by a tube Tu. In Fig. 3 (b), the tube Tu is shown as communicating with the interior of the airbag 10 through a conduit (not shown) formed inside the body 40A1.

The inflator 40B is provided with a compressed gas container (not shown) or the like connected to the end of the tube Tu, and the compressed gas container is disposed inside the underwater tunnel 2. The compressed gas container is connected to the tube Tu by a valve (not shown) operated by the control unit 30. [

As shown in Fig. 4 (a), the airbag 10 forms a reaction force P1 proportional to the viscosity of the water during instantaneous inflation during operation of the ignition inflator 40A, (40A1) to the underwater tunnel (2).

The reaction force P1 is a force that the airbag 10 occupies in the space occupied by the water when the airbag 10 is inflated and is pushed by the water. When the inflation of the airbag 10 is completed, the reaction force P1 is no longer So that the air bag 10 forms the buoyancy P2 due to the density difference with water (see Fig. 4 (b)).

The underwater airbag system 1 of the present invention transmits the force in the direction opposite to the overturning direction to the underwater tunnel 2 or the underwater equipment using the above reaction force P1 and the buoyancy force P2 of the airbag 10, Underwater tunnels (2) and water equipment are moved and rotated in the direction opposite to the overturning direction by the reaction forces (P1) and buoyancy (P2), so that the overturning is prevented or the damage caused by overturning is minimized.

As shown in Fig. 4 (b), since the buoyancy P2 due to the expansion of the airbag 10 after the operation of the ignition expander 40A can not help but be formed upward, the reaction force P1 is equal to the buoyancy P2 As shown in FIG.

If the reaction force P1 is formed downward or laterally rather than upwardly, the force that the airbag 10 transmits to the underwater tunnel 2 or the water equipment during the explosion of the inflating compound 40A3 and after the explosion, that is, the reaction force P1, Because the direction of the buoyancy force P2 and the direction of the buoyancy force P2 are largely changed, the continuous force can not be transmitted to the underwater tunnel 2.

Although not shown in detail, the airbag 10 includes a first airbag 10 installed on one side (hereinafter, referred to as 'first side') of the underwater tunnel 2 and a second airbag 10 opposite to the first side (Hereinafter referred to as a " second side ").

As shown in Figs. 4 (a) and 4 (b), the first airbag 10 forms an upward reactive force P1 and a buoyant force P2 on the first side during operation. The first side of the first airbag 10 is moved upward by the reaction force P1 and the buoyancy force P2 and the underwater tunnel 2 is moved in the first rotation direction .

Although not specifically shown, the second airbag will form an upward reaction force and buoyancy on the second side during operation. Accordingly, the second side of the second airbag is moved upward by the above reaction force and buoyancy, and the underwater tunnel 2 is moved in the second rotation direction (the direction opposite to the first rotation direction) with respect to the center of gravity .

The first airbag (10) and the second airbag are installed at regular intervals along the longitudinal direction of the underwater tunnel (2).

The sensor 20 preferably includes a first sensor 20 installed on the first side of the underwater tunnel 2 and a second sensor (not shown) installed on the second side. The control unit 30 controls the expansion and contraction of the first airbag 10 based on the signal of the first sensor 20, that is, the operation of the ignition inflator 40A, the inflation inflator 40B and the retractor 50, And the expansion and contraction of the second airbag is controlled based on the signal of the second sensor.

As shown in FIGS. 1 and 3, a coupling means U is formed on the outer surface of the underwater tunnel 2 so that the body 40A1 is coupled upward. The engaging means U comprises a bracket U1, an insert U2 and a cover U3.

The bracket U1 is provided on the outer surface of the underwater tunnel 2 and the body 40A1 is provided so that the airbag 10 expands downward to form an upward reaction force P1 during ignition of the ignition expander 40A Thereby forming a coupling surface U1a which is engaged at the lower side. Inside the bracket U1, a receiving space A1 in which a tube Tu and a wire W to be described later are accommodated is formed.

As shown in Fig. 3, the insertion section U2 is configured such that the body 40A1 is detachably inserted, and is coupled to the engagement surface U1a. A through hole H through which the tube Tu and the wire W are passed is formed in the inserting portion U2 and the engaging surface U1a. The airbag 10 is released from the insertion section U2 by the reaction force which is generated in the operation of the ignition inflator 40A.

A trigger Tr inserted into the ignition inflator 40A is formed in the insertion portion U2 so as to prevent the airbag 10 from being released from the airbag 10 before inflation. Although not shown in detail, the body 40A1 is formed with an insertion hole into which a trigger Tr is inserted, and a rail hole through which the trigger Tr linearly moves is formed in the insertion portion U2.

The trigger Tr is screwed into the rotation axis of the motor M and inserted or released in the insertion hole according to the rotation of the motor M. [ The motor (M) is operated under the control of the control section (30). The insertion unit U2 is provided with a detection sensor S for detecting the insertion and removal of the trigger Tr. The trigger Tr is released from the insertion hole immediately before inflation of the airbag 10 and the control unit 30 operates the ignition inflator 40A after receiving the signal of the sensing sensor S (deviation of the trigger Tr) do.

3, the cover U3 is configured to surround and protect the airbag 10 before inflating the airbag 10, and includes a fixed panel U3A and a rotating panel U3B. The cover U3 forms a receiving space A2 in which the airbag 10 before inflation of the airbag 10 is accommodated.

The fixed panel U3A is fixed to the bracket U1, and the rotary panel U3B is rotatably coupled to the fixed panel U3A. The unrotatable rotary panel U3B of the airbag 10 contacts the lower portion of the airbag 10 to restrain the downward movement of the airbag 10. [ As shown in Fig. 4 (a), when the airbag 10 is inflated, the rotating panel U3B is rotated, and the receiving space A2 is opened in the inflating direction of the airbag 10.

Referring to FIG. 2, the systole 50 includes a vacuum pump or the like, configured to extract gas inside the airbag 10 after the inflator 40 is operated. Although not shown in detail, the systole 50 is disposed inside the underwater tunnel 2 like the inflator 40B and connected to the body 40A1 of the airbag 10 or the ignition dilator 40A by the tube Tu do.

As shown in FIG. 5, the control method of the underwater air bag system 1 according to the embodiment of the present invention is performed in the following order.

First, the control unit 30 receives the signal of the sensor 20, and an overturning determination step S100 is performed to determine whether the offshore structure and the water equipment are overturned. The control unit 30 receives the signal of the sensor 20 and determines the rollover condition by the set judgment logic.

4 (a), when the control unit 30 detects the overturning situation of the offshore structure and the water equipment, the control unit 30 operates the ignition expander 40A to turn the airbag 10 against the overturning direction An ignition expansion step S200 for generating a reaction force P1 in the direction of the ignition is performed. In the ignition expansion step S200, the airbag 10 is rapidly inflated by the ignition expander 40A to form an immediate reaction force P1 in the direction opposite to the overturning direction, so that the overturning progress is quickly blocked at the beginning of the overturning .

Thereafter, the control unit 30 receives the signal of the sensor 20 and performs a release determination step (S300) for determining whether or not the offshore structure and the water equipment are overturned.

When the control unit 30 receives the signal from the sensor 20 and determines that the offshore structure of the offshore structure and the water infrastructure is released, the control unit 30 operates the inflator 40B as shown in Fig. 4 (b) An injection expansion step S400 is performed to increase the buoyancy P2 by the airbag 10. The airbag 10 is gradually inflated by the inflator 40B in the inflating and expanding step S400 and the buoyancy P2 is increased so that the offshore structure and the water equipment can be accurately moved and rotated to the position before the rollover situation.

Finally, when it is determined that the offshore structure of the offshore structure and the underwater equipment is released, the control unit 30 operates the systole 50 to perform the contraction step S500 for removing the buoyancy P2 by the airbag 10. The shrinkage stage (S500) is performed at the time when the repair of the damage due to rollover is completed in the case of an offshore structure fixed at a fixed position like the underwater tunnel (2), and the movement of the underwater equipment It is preferable that the operation is performed at the time when the overturning of the watercraft is released.

According to the present invention, by providing the air bag (10) which forms the reaction force (P1) and the buoyant force (P2) in the direction opposite to the rollover direction during the inflation, it is possible to prevent an offshore structure or a heavy equipment such as an underwater accident It is possible to provide an underwater air bag system 1 and a control method thereof that can be prevented or minimized when the vehicle is overturned by a natural disaster.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is obvious to those who have. Accordingly, it should be understood that such modifications or alterations should not be understood individually from the technical spirit and viewpoint of the present invention, and that modified embodiments fall within the scope of the claims of the present invention.

1: underwater air bag system 2: underwater tunnel
10: air bag 20: sensor
30: control unit 40: inflator
50: systole U: coupling means
W: Wire U1: Bracket
40A: Ignition expander A1: accommodation space
40A1: Body U1a: Coupling face
40A2: Igniter U2: Insertion part
40A3: Expansion compound Tr: Trigger
40B: infusion inflator M: motor
Tu: tube H: through hole
S100: Overturn judgment step S: Detection sensor
S200: Ignition expansion stage U3: cover
S300: Release determination step U3A: Fixed panel
S400: injection expansion stage U3B: rotary panel
S500: Contraction phase A2: accommodation space

Claims (10)

Installed in offshore structures and underwater equipment,
A sensor for sensing the acceleration of the offshore structure and the heavy equipment;
A control unit for determining the overturn of the offshore structure and the heavy equipment according to a signal of the sensor; And
And an air bag that is operated by the control unit and connected to the inflator and expands in water,
Wherein the airbag forms a reaction force and a buoyant force in a direction opposite to the overturning direction of the offshore structure and the water equipment when inflated. The method according to claim 1,
The inflator,
An ignition expander that generates gas by gunpowder ignition so that the airbag forms a reaction force; And
And an inflator for supplying a compressed gas to the air bag to form buoyancy. 3. The method of claim 2,
And a systole which is operated by the control unit and which takes out the gas inside the airbag after the operation of the inflator. 3. The method of claim 2,
Wherein the ignition expander is associated with the airbag,
Wherein the inflator is connected to the airbag by a tube,
Wherein the airbag or the ignition expander is connected to the offshore structure and the underwater equipment by a wire or a chain. 3. The method of claim 2,
Wherein an outer surface of the offshore structure and the underwater equipment is provided with a coupling means to which the airbag or the ignition expander is coupled so that the airbag inflates downward when the explosive ignition of the ignition expander is ignited. 6. The method of claim 5,
Wherein the coupling means comprises:
An insertion portion into which the airbag or the ignition inflator is detachably inserted; And
And a cover for restraining the downward movement of the airbag,
Wherein the airbag is detached from the insertion portion by a reaction force which is generated in the operation of the ignition inflator. The method according to claim 6,
Wherein the insertion portion is formed with a trigger inserted into the airbag or the ignition inflator so as to prevent the airbag from being released,
Wherein when the trigger is separated from the airbag or the ignition expander, the gunpowder of the ignition expander is ignited. Installed in offshore structures and underwater equipment,
A first sensor for detecting an acceleration, a leaning or an impact of either of the offshore structure and the water equipment;
A second sensor for sensing an acceleration, a leaning or an impact of the other of the offshore structure and the heavy equipment;
A controller for determining overturn of the offshore structure and the water-saving equipment according to the signals of the first sensor and the second sensor; And
And a first airbag and a second airbag that are operated by the control unit and are respectively connected to the inflator and inflated in water,
Wherein each of the first airbag and the second airbag forms a reaction force and a buoyancy force in a direction opposite to the overturning direction of the offshore structure and the water infrastructure when inflated. An overturning judgment step of the control part receiving the signal of the sensor and determining whether the offshore structure and the water equipment are overturned;
An ignition expansion step of operating the ignition inflator to generate a reaction force in a direction opposite to the rollover direction by the airbag when the overturning of the offshore structure and the water equipment is judged;
A controller for receiving a signal from the sensor and determining whether the offshore structure and the heavy equipment are overturned; And
And an injection expansion step of increasing the buoyancy by the airbag by operating the injection inflator when it is determined that the offshore structure of the offshore structure and the water equipment is released. 10. The method of claim 9,
And a contraction step of, when it is determined that the overturning of the offshore structure and the water equipment is canceled, the control unit activating the systole to remove buoyancy by the airbag.
KR1020140140867A 2014-10-17 2014-10-17 Underwater airbag system and control method thereof KR20160045394A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106314705A (en) * 2016-09-28 2017-01-11 金陵科技学院 Ship stabilizing and boosting device
CN109774880A (en) * 2019-03-03 2019-05-21 上海卯瑞船舶设备有限公司 A kind of ship safety equipment and its application method based on Internet of Things management
KR20190081131A (en) * 2017-12-29 2019-07-09 (주) 군장조선 Air bag storage device to prevent ship sinking
CN114203346A (en) * 2021-11-29 2022-03-18 王�忠 High-strength cable for protective deep-sea oil drilling
CN114412712A (en) * 2022-02-25 2022-04-29 青岛理工大学 Platform combining wind power generation and seawater hydrogen production

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030006172A (en) 2001-07-11 2003-01-23 박광수 underwater jet ski

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030006172A (en) 2001-07-11 2003-01-23 박광수 underwater jet ski

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106314705A (en) * 2016-09-28 2017-01-11 金陵科技学院 Ship stabilizing and boosting device
CN106314705B (en) * 2016-09-28 2018-11-16 金陵科技学院 A kind of ship stabilization assist device
KR20190081131A (en) * 2017-12-29 2019-07-09 (주) 군장조선 Air bag storage device to prevent ship sinking
CN109774880A (en) * 2019-03-03 2019-05-21 上海卯瑞船舶设备有限公司 A kind of ship safety equipment and its application method based on Internet of Things management
CN114203346A (en) * 2021-11-29 2022-03-18 王�忠 High-strength cable for protective deep-sea oil drilling
CN114203346B (en) * 2021-11-29 2023-11-03 四川中缆电缆集团有限公司 Protective type high-strength cable for deep sea oil drilling
CN114412712A (en) * 2022-02-25 2022-04-29 青岛理工大学 Platform combining wind power generation and seawater hydrogen production
CN114412712B (en) * 2022-02-25 2024-05-07 青岛理工大学 Platform for combining wind power generation and seawater hydrogen production

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