CN111422309A - Emergency cut-off device, emergency cut-off system and ship - Google Patents
Emergency cut-off device, emergency cut-off system and ship Download PDFInfo
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- CN111422309A CN111422309A CN202010359890.0A CN202010359890A CN111422309A CN 111422309 A CN111422309 A CN 111422309A CN 202010359890 A CN202010359890 A CN 202010359890A CN 111422309 A CN111422309 A CN 111422309A
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- cut
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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
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/24—Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines
- B63B27/25—Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines for fluidised bulk material
-
- 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
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- 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
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The invention provides an emergency cut-off device, an emergency cut-off system and a ship, and relates to the technical field of mechanical equipment, wherein the emergency cut-off device is applied to the ship provided with a liquid cargo cabin; the emergency cut-off device comprises a main control chip, and a first communication device and a cargo oil pump control device which are respectively connected with the main control chip; the first communication equipment is connected with second communication equipment on the shore; the cargo oil pump control device is connected with a cargo oil pump on the ship. When a first cut-off signal is triggered on the shore, the first cut-off signal can be transmitted to an emergency cut-off device on the ship through second communication equipment on the shore, so that a cargo oil pump on the ship is triggered to stop working; when cargo oil pump control equipment on the ship triggers the second cut-off signal, the second cut-off signal can be transmitted to second communication equipment on the shore through the first communication equipment, so that related equipment on the shore stops working, and emergency cut-off between ships and the shore is realized.
Description
Technical Field
The invention relates to the technical field of mechanical equipment, in particular to an emergency cut-off device, an emergency cut-off system and a ship.
Background
A tanker refers to a "ship" that carries oil and petroleum products (e.g., diesel, gasoline, heavy oil, etc.). A chemical tanker shall be defined as a tanker, which is a tanker constructed or adapted to carry various toxic, flammable, fugitive or corrosive chemicals.
Ships such as oil tankers and chemical tankers have higher transportation risks, the safety of the ships during cargo oil transportation with a wharf on the shore needs to be guaranteed, and the flow of liquid cargos and the steam volatilized by the cargos is stopped in an emergency, so that a cargo operation system is in a safe and static state. However, the emergency cut-off device on the current ship cannot realize emergency cut-off between ships and banks.
Disclosure of Invention
The invention aims to provide an emergency cut-off device, an emergency cut-off system and a ship, so as to realize emergency cut-off between ships and banks.
The embodiment of the invention provides an emergency cut-off device which is applied to a ship provided with a liquid cargo cabin; the emergency cut-off device comprises a main control chip, and a first communication device and a cargo oil pump control device which are respectively connected with the main control chip;
the first communication equipment is connected with second communication equipment on the shore, and the first communication equipment is used for sending a first cut-off signal transmitted by the second communication equipment to the main control chip; the main control chip is used for sending a first stop instruction to the cargo oil pump control equipment when receiving the first cut-off signal; the cargo oil pump control device is connected with a cargo oil pump on the ship and is used for controlling the cargo oil pump to stop working when receiving the first stop instruction;
the cargo oil pump control equipment is also used for sending a work stopping signal to the main control chip; the main control chip is further used for sending a second cut-off signal to the first communication equipment when receiving the work stop signal; the first communication device is further configured to transmit the second cut-off signal to the second communication device.
Furthermore, the emergency cut-off device also comprises a cut-off signal input device connected with the main control chip;
the cutting signal input device is used for sending a third cutting signal to the main control chip; the main control chip is further used for sending a second stop instruction to the cargo oil pump control device when receiving the third cut-off signal, and transmitting the third cut-off signal to the second communication device through the first communication device; the cargo oil pump control device is also used for controlling the cargo oil pump to stop working when the second stop instruction is received.
Further, the cut-off signal input device includes a manual cut-off button.
Further, the cut-off signal input device further comprises a liquid level height monitoring device;
the liquid level height monitoring device is arranged in the liquid cargo bin and used for sending the third cutting signal to the main control chip when monitoring that the liquid level height of the liquid cargo bin reaches a preset height value.
Furthermore, the emergency cut-off device also comprises an alarm device connected with the main control chip; the alarm device is arranged in a cargo compartment operation area of the ship.
Furthermore, the emergency cut-off device also comprises a third-party monitoring system connected with the main control chip;
the main control chip is further used for sending an alarm signal to the third party monitoring system when receiving the first cut-off signal and/or the second cut-off signal.
Further, the third-party monitoring system comprises a cargo console system and/or a cabin monitoring system.
Further, the model of the master control chip includes L M224N.
The embodiment of the invention also provides an emergency cut-off system, which comprises the emergency cut-off device and second communication equipment; the second communication device is connected with the first communication device in the emergency cut-off device.
The embodiment of the invention also provides a ship, which comprises the emergency cut-off device and a ship body provided with the liquid cargo cabin; the emergency cut-off device is arranged in the ship body.
The emergency cut-off device, the emergency cut-off system and the ship provided by the embodiment of the invention are applied to the ship provided with the liquid cargo cabin; the emergency cut-off device comprises a main control chip, and a first communication device and a cargo oil pump control device which are respectively connected with the main control chip; the first communication equipment is connected with second communication equipment on the shore, and the first communication equipment is used for sending a first cut-off signal transmitted by the second communication equipment to the main control chip; the main control chip is used for sending a first stop instruction to the cargo oil pump control equipment when receiving the first cut-off signal; the cargo oil pump control device is connected with a cargo oil pump on the ship and used for controlling the cargo oil pump to stop working when receiving a first stop instruction; the cargo oil pump control equipment is also used for sending a work stopping signal to the main control chip; the main control chip is also used for sending a second cut-off signal to the first communication equipment when receiving the work stop signal; the first communication device is further configured to transmit a second cut-off signal to the second communication device. Therefore, when the first cut-off signal is triggered on the shore, the first cut-off signal can be transmitted to the emergency cut-off device on the ship through the second communication equipment on the shore, so that the cargo oil pump on the ship is triggered to stop working; when cargo oil pump control equipment on the ship triggers the second cut-off signal, the second cut-off signal can be transmitted to second communication equipment on the shore through the first communication equipment, so that related equipment on the shore stops working, and emergency cut-off between ships and the shore is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of an emergency shutdown device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another emergency shutdown device provided in the embodiment of the present invention;
fig. 3 is a schematic structural diagram of another emergency shutdown device provided in the embodiment of the present invention;
fig. 4 is a schematic structural diagram of an emergency shutdown system according to an embodiment of the present invention.
The icon comprises 100 parts of a main control chip, 200 parts of a first communication device, 201 parts of an ES L control unit, 300 parts of a cargo pump control device, 400 parts of a cut-off signal input device, 401 parts of a manual cut-off button, 402 parts of a liquid level height monitoring device, 500 parts of an alarm device, 501 parts of an audible and visual alarm, 600 parts of a third party monitoring system, 601 parts of a cargo console system, 602 parts of a cabin monitoring system, 700 parts of an ESD control box, 800 parts of a ship power supply, 10 parts of an emergency cut-off device and 20 parts of a second communication device.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
OCIMF (Oil company International Marine Forum), which is a voluntary association composed of Oil Companies sharing common interests in Shipping and handling of crude Oil, finished Oil, petrochemical, and Gas, although it sets guidelines and guidelines for safety of Oil transportation and handling operations at wharves, as a beneficial supplement outside of the technical standards of International convention, rules, and classification Society, it has no mandatory but deeply agreed and approved to ensure safety of Oil transportation.
According to the requirements of relevant specifications and regulation guidelines of OCIMF (2017)/SIGTTO/CDI, all oil tankers/chemical tankers need to be provided with a cargo transfer ship shore emergency automatic disconnection system.
CCS (China Classification Society) also issued an "guiding document for oil and chemical tanker manifolds and related equipment recommendation conformity statement" of OCIMF in 1 month and 1 year 2019, wherein all oil and chemical tankers signed up a construction contract in 1 month and later in 2019 are mentioned (the applicable tonnage is extended from the original "applicable weight greater than 16000 SDWT (Summer Deadweight, Summer load weight)") to all the tonnage), and the requirement for synchronous installation of a cargo transmission emergency cutoff system (the requirement was previously applicable only to liquefied gas tankers).
Based on the emergency cut-off device, the emergency cut-off system and the ship provided by the embodiment of the invention, the emergency cut-off between the ship and the shore can be realized.
For the convenience of understanding the present embodiment, a detailed description will be given of an emergency cut-off device disclosed in the present embodiment.
An embodiment of the present invention provides an emergency cut-off device applied to a ship provided with a liquid cargo tank, which may be a tanker or a chemical tanker, such as an lpg ship or an lng ship. Referring to fig. 1, an emergency cut-off device includes a main control chip 100, and a first communication device 200 and a cargo pump control device 300 respectively connected to the main control chip 100.
The first communication device 200 is connected to a second communication device on the shore, and the first communication device 200 is configured to send a first cut-off signal transmitted by the second communication device to the main control chip 100; the main control chip 100 is configured to send a first stop instruction to the cargo pump control device 300 when receiving the first cut-off signal; the cargo pump control device 300 is connected to a cargo pump on the ship, and the cargo pump control device 300 is configured to control the cargo pump to stop operating upon receiving a first stop instruction. Thus, when the first cut-off signal is triggered on shore, the first cut-off signal can be transmitted to the emergency cut-off device on the ship through the second communication equipment on shore, so that the cargo oil pump on the ship is triggered to stop working.
The cargo oil pump control device 300 is further configured to send a stop signal to the main control chip 100; the main control chip 100 is further configured to send a second cut-off signal to the first communication device 200 when receiving the stop signal; the first communication device 200 is also configured to transmit a second cut-off signal to the second communication device. In this way, when the cargo pump control device 300 on the ship triggers the second cut-off signal, the relevant devices on shore can be stopped by the first communication device 200 transmitting the second cut-off signal to the second communication device on shore.
The first communication device 200 and the second communication device may be connected by wired communication or wireless communication. For example, the first communication device 200 is connected to the second communication device through a sigtt (Society of International Gas Tanker and terminal operator associations) 5-core junction box, the sigtt 5-core junction box uses a sigtt 5-core junction, and the specification of the junction can be adapted to the OCIMF/sigtt specification, so that the successful docking with the International terminal can be ensured, the current isolation between the first communication device 200 and the second communication device can be ensured, and the disconnection signals of both parties can be automatically transmitted to each other without delay. Further, when the cables in the SIGTTO 5-core junction box are not long enough, the second communication device can be switched over through the cables on the SIGTTO 5-core cable reel. For another example, the first communication device 200 is connected to the second communication device through a wireless communication junction box, so that a cumbersome operation of wiring can be avoided.
The above-described cargo oil pump control devices 300 may correspond to the cargo oil pumps one to one, and the number of the cargo oil pump control devices 300 is the same as the number of the cargo oil pumps, that is, the cargo oil pump control devices 300 may be one or more. The emergency cut-off device may also employ only one cargo pump control apparatus 300, and a plurality of cargo pumps are each connected to the cargo pump control apparatus 300.
Optionally, the model of the main control chip 100 may be L M224N.
According to the emergency cut-off device provided by the embodiment of the invention, when a first cut-off signal is triggered on the shore, the first cut-off signal can be transmitted to the emergency cut-off device on the ship through second communication equipment on the shore, so that a cargo oil pump on the ship is triggered to stop working; when the cargo pump control device 300 on the ship triggers the second cut-off signal, the second cut-off signal can be transmitted to the second communication device on the shore through the first communication device 200, so that the related devices on the shore stop working, thereby realizing emergency cut-off between ships and shore.
Referring to another structure diagram of the Emergency Shutdown device shown in fig. 2, the first communication device 200 may be an ES L (Emergency Shutdown L ink) control unit 201, the main control chip 100 and the ES L control unit 201 may be connected to exchange data through a hard point, when an ESD (Emergency Shutdown) signal (i.e., a first Shutdown signal) is triggered onshore, the onshore related device is stopped, and the ESD signal is transmitted to the main control chip 100 through the ES L control unit 201 on the ship, so as to trigger the marine related device (e.g., the cargo oil pump control device 300) to stop working, whereas, when the ESD signal is triggered onshore, the marine related device is stopped, and the ESD signal is transmitted to the ES L control unit 201 through the main control chip 100 on the ship, and then to the marine related device is stopped, and a signal trigger of any one of the two of the banks may work in a linkage manner, thereby achieving Emergency Shutdown between the ships.
Optionally, as shown in fig. 2, the emergency shutdown device further includes a shutdown signal input device 400 connected to the main control chip 100, the shutdown signal input device 400 is configured to send a third shutdown signal to the main control chip 100, the main control chip 100 is further configured to send a second shutdown command to the cargo pump control device 300 and transmit the third shutdown signal to the second communication device through the first communication device 200 (e.g., the ES L control unit 201) when receiving the third shutdown signal, and the cargo pump control device 300 is further configured to control the cargo pump to shut down when receiving the second shutdown command.
Further, referring to another schematic construction of the emergency cut-off device shown in fig. 3, the cut-off signal input device 400 includes a manual cut-off button 401. The manual cut-off button 401 may be disposed at a dangerous area or an entrance/exit on a ship, so as to facilitate manual triggering of a worker and ensure safety control of a worker workplace on a site. The number of the manual cut-off buttons 401 may be one or more, preferably at least two, and the two manual cut-off buttons 401 are respectively provided on the port and starboard sides of the ship. This enables manual off button 401 activation of the ESD signal.
Further, as shown in fig. 3, the cut-off signal input device 400 further includes a liquid level height monitoring device 402; the liquid level height monitoring device 402 is disposed in a liquid cargo tank of the ship, and the liquid level height monitoring device 402 is configured to send a third cut-off signal to the main control chip 100 when the liquid level height of the liquid cargo tank reaches a preset height value. This enables high level triggering of the ESD signal.
Optionally, as shown in fig. 2, the emergency shutdown device further includes an alarm device 500 connected to the main control chip 100; the main control chip 100 is further configured to activate the alarm device 500 when receiving the first cut-off signal and/or the second cut-off signal. The alarm device 500 is provided in a cargo operation area of a ship so that a worker can find an abnormal situation between banks in time.
Further, as shown in fig. 3, the alarm device 500 may employ at least two audible and visual alarms 501, and the two audible and visual alarms 501 are respectively disposed on the port and starboard sides of the ship.
Optionally, as shown in fig. 2, the emergency shutdown device further includes a third-party monitoring system 600 connected to the main control chip 100; the main control chip 100 is further configured to send an alarm signal to the third-party monitoring system 600 when receiving the first cut-off signal and/or the second cut-off signal, so that relevant personnel can find abnormal situations between the ship and the shore in time through the third-party monitoring system 600.
Further, as shown in fig. 3, the third-party monitoring system 600 may include a console system 601 and a cabin monitoring system 602.
Optionally, as shown in fig. 3, the emergency shutdown device further includes an ESD control box 700, the ESD control box 700 may be installed in a cargo control room or other secure area on the ship, the main control chip 100 may be disposed in the ESD control box 700, a power input interface is disposed on the ESD control box 700, the ship power supply 800 is connected to the main control chip 100 through the power input interface to supply power to the main control chip 100, an ES L control unit 201 is connected to the main control chip 100 through an ESD signal output interface, an ESD signal input interface and a power output interface on the ESD control box 700, three cargo oil pump control devices 300 are connected to the main control chip 100 through three cargo oil pump signal input/output interfaces on the ESD control box 700, two manual shutdown buttons 401 are connected to the main control chip 100 through two emergency shutdown signal input interfaces on the ESD control box 700, the high level monitoring device 402 is connected to the main control chip 100 through a high level alarm signal input interface on the ESD control box 700, two acoustic-optical alarms 501 are connected to the main control chip 100 through two acoustic-optical alarm output interfaces (for active output interfaces) on the ESD control box 700, two cabin monitoring systems 601 and two other emergency alarm output interfaces on the cargo control box 700 are connected to the other cargo control cabin system 700, and the other emergency control box 700 may be further connected to the other emergency control output interfaces, and the other emergency control output interfaces may.
The ES L control unit 201, the cargo pump control device 300, the manual cut-off button 401, the liquid level height monitoring device 402, the audible and visual alarm 501, the cargo console system 601 and the cabin monitoring system 602 in the emergency cut-off device can all be connected into the ESD control box 700 through hard points.
It should be noted that although the ES L control unit 201 in fig. 3 is disposed outside the ESD control box 700, the scope of the present invention is not limited thereto, and in other embodiments, the ES L control unit 201 may be disposed inside the ESD control box 700 together with the main control chip 100.
An embodiment of the present invention further provides an emergency shutdown system, referring to a schematic structural diagram of an emergency shutdown system shown in fig. 4, where the emergency shutdown system includes the emergency shutdown device 10 described above, and further includes a second communication device 20; the second communication device 20 is connected to the first communication device 200 in the emergency cut-off device 10.
The emergency cut-off system can reliably transmit ESD signals of both sides of a ship and a shore, and related equipment can be quickly, automatically and controllably closed in an emergency.
The emergency cut-off system provided in this embodiment has the same implementation principle and technical effect as those of the foregoing emergency cut-off device embodiment, and for the sake of brief description, reference may be made to the corresponding contents in the foregoing emergency cut-off device embodiment where no part of the embodiment of the emergency cut-off system is mentioned.
The embodiment of the invention also provides a ship, which comprises the emergency cut-off device and a ship body provided with the liquid cargo cabin; the emergency cut-off device is arranged in the ship body.
Alternatively, the vessel may be a tanker or a chemical tanker.
The ship provided by the embodiment has the same implementation principle and technical effect as those of the emergency shutdown device embodiment, and for brief description, reference may be made to corresponding contents in the emergency shutdown device embodiment where no part of the ship embodiment is mentioned.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically 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 in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. An emergency cut-off device is characterized by being applied to a ship provided with a liquid cargo cabin; the emergency cut-off device comprises a main control chip, and a first communication device and a cargo oil pump control device which are respectively connected with the main control chip;
the first communication equipment is connected with second communication equipment on the shore, and the first communication equipment is used for sending a first cut-off signal transmitted by the second communication equipment to the main control chip; the main control chip is used for sending a first stop instruction to the cargo oil pump control equipment when receiving the first cut-off signal; the cargo oil pump control device is connected with a cargo oil pump on the ship and is used for controlling the cargo oil pump to stop working when receiving the first stop instruction;
the cargo oil pump control equipment is also used for sending a work stopping signal to the main control chip; the main control chip is further used for sending a second cut-off signal to the first communication equipment when receiving the work stop signal; the first communication device is further configured to transmit the second cut-off signal to the second communication device.
2. The emergency shutdown device of claim 1, further comprising a shutdown signal input device connected to the master control chip;
the cutting signal input device is used for sending a third cutting signal to the main control chip; the main control chip is further used for sending a second stop instruction to the cargo oil pump control device when receiving the third cut-off signal, and transmitting the third cut-off signal to the second communication device through the first communication device; the cargo oil pump control device is also used for controlling the cargo oil pump to stop working when the second stop instruction is received.
3. The emergency disconnect device of claim 2, wherein the disconnect signal input device comprises a manual disconnect button.
4. The emergency shutdown device of claim 3, wherein the shutdown signal input device further comprises a liquid level high monitoring device;
the liquid level height monitoring device is arranged in the liquid cargo bin and used for sending the third cutting signal to the main control chip when monitoring that the liquid level height of the liquid cargo bin reaches a preset height value.
5. The emergency cut-off device of claim 1, further comprising an alarm device connected to the master control chip; the alarm device is arranged in a cargo compartment operation area of the ship.
6. The emergency shutdown device of claim 1, further comprising a third party monitoring system connected to the master control chip;
the main control chip is further used for sending an alarm signal to the third party monitoring system when receiving the first cut-off signal and/or the second cut-off signal.
7. The emergency shutdown device of claim 6, wherein the third party monitoring system comprises a cargo console system and/or a cabin monitoring system.
8. An emergency shutdown device according to any one of claims 1 to 7 wherein the master chip model comprises L M224N.
9. An emergency disconnect system comprising the emergency disconnect device of any one of claims 1-8, and further comprising a second communication device; the second communication device is connected with the first communication device in the emergency cut-off device.
10. A marine vessel, characterized by comprising the emergency cut-off device of any one of claims 1-8, further comprising a hull provided with a cargo tank; the emergency cut-off device is arranged in the ship body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010359890.0A CN111422309A (en) | 2020-04-29 | 2020-04-29 | Emergency cut-off device, emergency cut-off system and ship |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010359890.0A CN111422309A (en) | 2020-04-29 | 2020-04-29 | Emergency cut-off device, emergency cut-off system and ship |
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| CN111422309A true CN111422309A (en) | 2020-07-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113911269A (en) * | 2021-11-16 | 2022-01-11 | 江苏扬子三井造船有限公司 | Emergency cut-off device of liquid cargo system |
-
2020
- 2020-04-29 CN CN202010359890.0A patent/CN111422309A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113911269A (en) * | 2021-11-16 | 2022-01-11 | 江苏扬子三井造船有限公司 | Emergency cut-off device of liquid cargo system |
| CN113911269B (en) * | 2021-11-16 | 2024-03-08 | 江苏扬子三井造船有限公司 | Emergency cutting device of liquid cargo system |
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