CN112249255A - Ship safety protection system for safe navigation in LNG diffusion environment - Google Patents
Ship safety protection system for safe navigation in LNG diffusion environment Download PDFInfo
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- CN112249255A CN112249255A CN202010292122.8A CN202010292122A CN112249255A CN 112249255 A CN112249255 A CN 112249255A CN 202010292122 A CN202010292122 A CN 202010292122A CN 112249255 A CN112249255 A CN 112249255A
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- lng
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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
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/20—Use of propulsion power plant or units on vessels the vessels being powered by combinations of different types of propulsion units
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63J—AUXILIARIES ON VESSELS
- B63J2/00—Arrangements of ventilation, heating, cooling, or air-conditioning
- B63J2/02—Ventilation; Air-conditioning
- B63J2/04—Ventilation; Air-conditioning of living spaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/20—Use of propulsion power plant or units on vessels the vessels being powered by combinations of different types of propulsion units
- B63H2021/202—Use of propulsion power plant or units on vessels the vessels being powered by combinations of different types of propulsion units of hybrid electric type
- B63H2021/205—Use of propulsion power plant or units on vessels the vessels being powered by combinations of different types of propulsion units of hybrid electric type the second power unit being of the internal combustion engine type, or the like, e.g. a Diesel engine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/50—Measures to reduce greenhouse gas emissions related to the propulsion system
- Y02T70/5218—Less carbon-intensive fuels, e.g. natural gas, biofuels
Abstract
The embodiment of the invention discloses a ship safety protection system for safely navigating in an LNG diffusion environment, which comprises a comprehensive display and control system, a comprehensive safety protection system and a control system, wherein the real-time information of the comprehensive safety protection system sends out or outputs an operation command according to the operation process of the safety protection system; the air-tight device is used for preventing the infiltration of external LNG; the low-temperature detection system is used for detecting the environmental temperature of the ship; the combustible gas detection system is used for detecting the concentration of the LNG gas; the water curtain protection system is used for heat insulation protection when the ship is in fire or splashed by low-temperature gas-liquid diffusion; the cabin positive air pressure maintaining system is used for maintaining a safe breathing environment in the cabin and preventing the infiltration of external LNG; the power lithium battery system provides kinetic energy for the ship when the diesel engine cannot be continuously used in the LNG diffusion environment; the safety protection system can timely and efficiently implement rescue when a ship enters an LNG diffusion environment, and can effectively improve the emergency response capability of LNG leakage accidents and the technical level of processing leaked LNG.
Description
Technical Field
The invention relates to the field of ship safety protection, in particular to a ship safety protection system for safe navigation in an LNG diffusion environment.
Background
The receiving station of LNG is called liquid Natural Gas Terminal in English, and the receiving station of LNG is in Chinese. With the positive construction of LNG receiving stations at all ports, the number of LNG ships entering and leaving ports is greatly increased, the LNG handling capacity is continuously increased, the risk of sea pollution and dangerous goods accidents is further increased, the maritime supervision is required to be enhanced, and the construction of related matched safety supervision equipment facilities is required to be correspondingly enhanced.
The LNG accident has the characteristics of high safety risk and high accident handling difficulty, and when LNG leakage and other similar dangerous conditions and field conditions are unknown, the conventional rescue ship cannot timely and effectively implement rescue due to the fact that the conventional rescue ship does not have the condition of entering the LNG diffusion area for operation and possibly aggravates the danger of the LNG diffusion area.
Disclosure of Invention
The invention aims to provide a ship safety protection system for safe navigation in an LNG diffusion environment, and solves the technical problems.
The technical problem solved by the invention can be realized by adopting the following technical scheme:
a safety system for a vessel that safely navigates in an LNG diffusion environment, comprising:
the comprehensive display and control system is used for synthesizing the real-time information of the safety protection system and sending or outputting an operation command according to the operation process of the safety protection system;
the air-tight device is used for preventing the infiltration of external LNG;
the low-temperature detection system is used for detecting the environmental temperature of the ship;
the combustible gas detection device system is used for detecting the concentration of the LNG gas;
the water curtain protection system is used for heat insulation protection when the ship is in fire or splashed by low-temperature gas-liquid diffusion;
the cabin positive air pressure maintaining system is used for maintaining a safe breathing environment in the cabin and preventing the infiltration of external LNG;
the power lithium battery system is used for providing kinetic energy for the ship when the diesel engine cannot be continuously used in the LNG diffusion environment.
Preferably, the comprehensive display and control system comprises a comprehensive display and control terminal and a man-machine operation interface, and the comprehensive display and control system is used for collecting environmental information of the ship and outputting an operation command.
Preferably, the airtight device comprises an airtight door, a window, a hatch cover, an airtight damper and an airtight shutter which are opened to the outside of the ship.
Preferably, the low-temperature detection system comprises a plurality of temperature sensors and signal transmission equipment, the temperature sensors are connected with the comprehensive display and control system, and the temperature sensors are uniformly arranged on the side of the ship;
when the detection temperature of any one temperature sensor is lower than a temperature threshold value, an alarm signal is generated, the signal transmission equipment transmits the alarm signal to the comprehensive display and control system, and the comprehensive display and control system generates a first alarm signal.
Preferably, the combustible gas detection device system comprises a plurality of combustible gas detection device sensors and a combustible gas detection device master control box, the combustible gas detection device sensors are connected with the combustible gas detection device master control box, and the plurality of combustible gas detection device sensors are respectively arranged in an air inlet/outlet area, a potential dangerous gas leakage cabin and a main function cabin of the ship;
the combustible gas detection device master control box generates a second alarm signal when the combustible gas detection device sensor detects that the gas concentration is higher than the gas concentration threshold value, and transmits the alarm signal to the comprehensive display control system.
Preferably, the water curtain system includes a plurality of sea water pumps and a plurality of water curtain shower nozzle, the sea water pump is arranged in inside the hull cabin, water curtain shower nozzle transverse arrangement in the topside of boats and ships, the water curtain shower nozzle lead to pipe with the sea water pump is connected, set up normally closed intercommunication valve on the water pipe, normally closed intercommunication valve with total control system connects.
Preferably, the cabin positive air pressure maintenance system comprises an air release device, a CO2 removal device and a differential pressure relief valve;
the air release device is arranged in the auxiliary equipment cabin and is connected to a personnel gathering area on the ship through a pipeline;
the CO2 removal device is placed in a personnel gathering area on the ship;
the pressure difference balance valve is arranged on each deck of the deck chamber.
Preferably, set up a plurality of power battery cabins in the boats and ships, power lithium battery system includes a plurality of energy storage battery of group, each group energy storage battery all is fixed in one through the battery rack in the battery cabin, each all dispose combustible gas detection device, fire alarm detection device, ventilation fan, cabinet air conditioner and fire extinguishing system in the battery cabin.
Preferably, the fire fighting system comprises a number of fire extinguishing devices; when the fire alarm detection device detects that the battery compartment catches fire, generating a fire alarm signal;
and after receiving the fire alarm signal, the fire extinguishing system controls the fire extinguishing device to start, and the fire extinguishing device releases a heptafluoropropane fire extinguishing agent to the battery compartment.
Has the advantages that: according to the invention, the low-temperature detection system and the combustible gas detection device system are arranged on the ship, so that the temperature around the ship and the LNG gas concentration can be effectively monitored, the environmental abnormality can be timely found, and safety protection measures can be taken; the water curtain protection system is arranged on the ship, so that when a fire disaster or freezing damage occurs, the ship can be protected through the water curtain system, and the fire disaster and low-temperature danger can be effectively responded; a cabin positive air pressure maintaining system is arranged on the ship to provide fresh air and positive pressure protection for personnel on the ship; set up airtight device on the ship, guarantee the airtight integrality of boats and ships under the LNG diffusion environment, prevent that LNG from getting into inside the hull. The safety protection system can timely and efficiently implement rescue when the ship enters an LNG diffusion environment, and can effectively improve the emergency response capability of LNG leakage accidents and the technical level of LNG leakage treatment.
Drawings
FIG. 1 is a block diagram of a safety shield system of the present invention;
FIG. 2 is a map of the position of the cryogenic detection system of the present invention on a vessel;
FIG. 3 is a schematic illustration of a position profile of the combustible gas detection device system of the present invention on a vessel;
FIG. 4 is a diagram of the position of the water curtain protection system of the present invention on a vessel;
fig. 5 is a diagram of the position of the cabin positive air pressure maintenance system of the present invention on a ship.
In the figure: 1-comprehensive display and control system; 2-a gas-tight device; 3-a low temperature detection system; 4-a combustible gas detection device system; 5-water curtain protection system; 6-cabin positive air pressure maintenance system; 7-a power lithium battery system;
21-an airtight door; 22-a gas tight window; 23-an airtight cover; 24-airtight dampers;
31-a temperature sensor; 32-a signal transmission device;
41-gas detection sensor; 42-detection master control box;
51-sea water pump; 52-water curtain spray head;
61-air release means; 62-CO2 removal unit; 63-differential pressure relief valve;
71-an energy storage battery; 72-a combustible gas detection device; 73-fire alarm detection means; 74-ventilating fan; 75-cabinet air-conditioner; 76-fire fighting system.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
As shown in fig. 1, the present invention provides a safety protection system for a ship, which safely sails in an LNG diffusion environment, comprising:
the comprehensive display and control system 1 comprehensively collects real-time monitoring information of the safety protection system; issuing or outputting an operation command according to the operation flow of the safety protection system; the comprehensive display and control terminal comprises a set of comprehensive display and control terminal display screen used for displaying the information and outputting an operation command.
The airtight device 2 is used for preventing the infiltration of external LNG;
the low-temperature detection system 3 is used for detecting the environmental temperature of the ship;
the combustible gas detection device system 4 is used for detecting the concentration of the LNG gas;
the water curtain protection system 5 is used for heat insulation protection when fire disasters or low-temperature gas-liquid flooding splashing happen;
the cabin positive air pressure maintaining system 6 is used for maintaining a safe breathing environment in the cabin and preventing external LNG from permeating through the cabin by micro-positive pressure;
and the power lithium battery system 7 is connected with the comprehensive display and control system 1, the airtight device 2, the low-temperature detection system 3, the combustible gas detection device system 4, the water curtain protection system 5 and the cabin forward air pressure maintenance system 6. The safety protection system of the whole ship can be powered. The airtight device 2 (airtight air brake), the low-temperature detection system 3, the combustible gas detection device system 4, the water curtain protection system 5, the cabin forward air pressure maintaining system 6 and the power supply system 7 are all controlled by the ship operator through the comprehensive display and control system 1.
The invention has the advantages that:
according to the invention, the low-temperature detection system and the combustible gas detection device system are arranged on the ship, so that the temperature around the ship and the LNG gas concentration can be effectively monitored, the environmental abnormality can be timely found, and safety protection measures can be taken; the water curtain protection system is arranged on the ship, so that when a fire disaster or freezing damage occurs, the ship can be protected through the water curtain system, and the fire disaster and low-temperature danger can be effectively responded; a cabin positive air pressure maintaining system is arranged on the ship to provide fresh air and positive pressure protection for personnel on the ship; set up airtight device on the ship, guarantee the airtight integrality of boats and ships under the LNG diffusion environment, prevent that LNG from getting into inside the hull. The safety protection system can timely and efficiently implement rescue when the ship enters an LNG diffusion environment, and can effectively improve the emergency response capability of LNG leakage accidents and the technical level of LNG leakage treatment.
As shown in fig. 1, as a preferred embodiment of the present invention, the gas-tight device 2 includes a gas-tight door 21, a gas-tight window 22, a gas-tight cover 23 and a gas-tight damper 24, and when the gas detection device detects that the gas concentration of LNG reaches a gas concentration index of the LNG diffusion environment, the gas-tight device 2 is controlled by the control device to be activated, and the openings of the gas-tight door 21, the gas-tight window 22, the gas-tight cover 23 and the gas-tight damper 24 are immediately closed to maintain gas-tightness and prevent the infiltration of external LNG.
As shown in fig. 1 and 2, the low temperature detection system 3 mainly includes a plurality of temperature sensors 31 and a signal transmission device 32, and the plurality of temperature sensors 31 are uniformly arranged on both sides of the ship board.
As a preferred embodiment of the present invention, when the detected temperature of any one of the temperature sensors 31 is lower than the temperature threshold, a first alarm signal (low temperature detection alarm signal) can be sent out, and the first alarm signal is transmitted to the integrated display and control system 1 through the signal transmission device, so that the ship operator can effectively monitor the actual position of the danger occurrence in the first time through the integrated display and control system 1, and can effectively judge and respond to the current situation according to the safety protection operation flow, for example, evacuate the low temperature environment in time, thereby ensuring the personal safety of the worker.
The temperature alarm threshold of the temperature sensor 31 is set to 0 ℃, and can be properly adjusted according to the normal work and survival requirements of the ship. In addition, an upper temperature threshold value can be set, when the temperature exceeds the upper temperature threshold value, the ambient temperature is higher than the normal temperature, and an alarm is given out to remind people of the fire disaster in time.
As shown in fig. 1 and fig. 3, as a preferred embodiment of the present invention, the combustible gas detection device system 4 includes a plurality of combustible gas detection device sensors 41 and a detection master control box 42, the combustible gas detection device sensors 41 are connected to the detection master control box 42, and the plurality of combustible gas detection device sensors 41 are respectively and uniformly disposed at an open deck, a cabin ventilation inlet, an cabin outlet, and a main function cabin (including a battery cabin, a battery equipment room, a propulsion frequency converter cabin, a propulsion cabin, a centralized control room, a cabin, etc.) of the ship.
As a preferred embodiment of the present invention, the combustible gas alarm control box 42 issues an alarm when the gas detection concentration of the combustible gas detection device sensor 41 is higher than the gas concentration threshold value, and forwards the related alarm data information to the integrated display and control system 1 for monitoring by the ship operator, so that the integrated display and control system 1 issues a second alarm signal (combustible gas concentration alarm signal), which reminds the operator to observe the size and range of the LNG diffusion environment according to the safety protection operation process, and take countermeasures in combination with the situation of the site. If the ship is detected to enter the LNG diffusion environment, the integrated display and control system 1 can control the openings of the airtight door 21, the airtight window 22, the airtight cover 23 and the airtight damper 24 to be closed in time, so as to prevent the outside air from entering the cabin.
As shown in fig. 1 and 4, as a preferred embodiment of the present invention, the water curtain system 5 includes a plurality of seawater pumps 51 and a plurality of water curtain nozzles 52, the seawater pumps 51 are disposed in the engine room of the ship, the water curtain nozzles 52 are disposed on the topside of the ship, and the water curtain nozzles 52 are connected to the seawater pumps 51 through water pipes.
As a preferred embodiment of the invention, a normally closed communication valve is arranged on the water pipe and is connected with the comprehensive display and control system 1. When meeting a fire disaster or a low temperature, the ship operating personnel can control the seawater pump 52 to start through the comprehensive display and control system 1, open the normally closed communication valve to enable the waterway to be smooth, the seawater pump on each side absorbs water from the sea bottom door of the side to be supplied to the water curtain spray head 52, and the seawater is sprayed out from the water curtain spray head 52 after being guided by the seawater pump 51 to form a water curtain, so that the function of isolating the high temperature of the fire disaster or isolating the low temperature of the liquefied natural gas around is achieved, and the effect of providing a safe living environment on the ship is achieved.
As shown in fig. 1 and 5, as a preferred embodiment of the present invention, the cabin positive air pressure maintaining system 6 comprises an air releasing device 61, a CO2 removing device 62 and a differential pressure relief valve 63, wherein the air releasing device is disposed in the auxiliary equipment cabin and connected to the personnel gathering area on the ship through a pipeline for decompressing and redistributing the air in the high pressure air bottle to the personnel gathering area on the ship and the release place between the air locks, thereby improving the quality of the air in the ship, ensuring the normal breathing of the personnel, and simultaneously ensuring the cabin air slight positive pressure, which effectively prevents the infiltration of the external LNG.
The air release device 61 comprises a breathing air compressor, a high-pressure breathing air bottle, a high-pressure air pressure reducing valve group and a low-pressure breathing air bottle. Under the safe condition, the breathing air compressor is used for inflating a high-pressure breathing air bottle; in the LNG gas diffusion environment, the high-pressure breathing air bottle is decompressed by the decompression valve bank, enters the low-pressure breathing air bottle, and is sent to an air release point between the personnel gathering area and the main deck air lock.
And a CO2 removing device 62 is arranged in each personnel gathering area, the gas concentration of CO2 in the cabin can be detected through a gas detection device, and when the concentration of CO2 exceeds the standard, the CO2 removing device 62 is started to discharge the CO2 exceeding the standard in the cabin out of the cabin. Ensuring the breathing safety of personnel.
For avoiding the pressure in the ship cabin is continuously increased, a pressure difference relief valve 63 is arranged between each deck and the air lock to the outside, the pressure of the breathing air of the living cabin is adjusted, the living cabin is ensured to be in micro-positive pressure, and pressure difference detection data are transmitted to the comprehensive display and control system 1 to be observed by ship operators.
As a preferred embodiment of the present invention, a plurality of battery compartments are provided in the ship, the power lithium battery system 7 includes a plurality of sets of energy storage batteries 71, each set of energy storage batteries may be a lithium battery set, each set of energy storage batteries is fixed in one battery compartment through a battery rack, and each battery compartment is provided with a combustible gas detection device 72, a fire alarm detection device 73, a ventilation fan 74, a cabinet air conditioner 75, a fire protection system 76, a combustible gas detection device 72, and a fire alarm detection device 73, which can effectively monitor the environmental status of the battery compartment.
The fire protection system 76 includes a number of fire suppression devices; when the fire alarm detecting device 73 detects a fire in the battery compartment, a fire alarm signal is generated;
after receiving the fire alarm signal, the fire extinguishing system 76 controls the fire extinguishing device to start, and the fire extinguishing device releases a heptafluoropropane fire extinguishing agent to the battery compartment to extinguish fire in time, so that accidents of the battery compartment are solved in time, and loss caused by fire is reduced in time.
The ventilation fan 74 and the cabinet air conditioner 75 are turned on under the power supply of the energy storage battery 71, so that the good operation environment and heat dissipation of the battery are ensured, and the possible combustible gas leakage or fire hazard of the battery compartment can be effectively protected by the ventilation fan 74 or the fire fighting system 76 when a dangerous condition occurs. When the ship sails in the LNG diffusion environment, the energy storage battery 71 can be used for replacing a diesel generator set.
As a preferred embodiment of the invention, two sets of completely independent power lithium battery systems 7 are configured in total, and when any one set of power lithium battery system 7 fails, a new intact set of power lithium battery system 7 is switched to supply power for the ship power grid system. The power supply switching can be controlled by the comprehensive display and control system 1, so that the power supply fault tolerance of the ship is reduced, and the influence of single battery faults on a whole-ship power grid system is reduced to the maximum extent.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (9)
1. A safety protection system for a ship sailing safely in an LNG diffusion environment, comprising:
the comprehensive display and control system is used for synthesizing the real-time information of the safety protection system and sending or outputting an operation command according to the operation process of the safety protection system;
the air-tight device is used for preventing the infiltration of external LNG;
the low-temperature detection system is used for detecting the environmental temperature of the ship;
the combustible gas detection system is used for detecting the concentration of the LNG gas;
the water curtain protection system is used for heat insulation protection when the ship is in fire or splashed by low-temperature gas-liquid diffusion;
the cabin positive air pressure maintaining system is used for maintaining a safe breathing environment in the cabin and preventing the infiltration of external LNG;
the power lithium battery system is used for providing kinetic energy for the ship when the diesel engine cannot be continuously used in the LNG diffusion environment.
2. The ship safety protection system for safe navigation in LNG diffusion environment of claim 1, wherein the integrated display and control system comprises an integrated display and control terminal and a man-machine operation interface, and the integrated display and control system is used for collecting environmental information of ships and outputting operation commands.
3. The safety system of claim 1, wherein the airtight device comprises an airtight door, a window, a hatch cover, an airtight damper and an airtight shutter for opening the ship to the outside.
4. The safety protection system for ships sailing safely in LNG diffusion environment of claim 1, wherein the low temperature detection system comprises a plurality of temperature sensors and signal transmission equipment, the temperature sensors are connected with the integrated display and control system, and the temperature sensors are uniformly arranged on the side of the ship;
when the detection temperature of any one temperature sensor is lower than a temperature threshold value, an alarm signal is generated, the signal transmission equipment transmits the alarm signal to the comprehensive display and control system, and the comprehensive display and control system generates a first alarm signal.
5. The safety protection system for ships navigating safely in LNG diffusion environment according to claim 1, wherein the combustible gas detection system comprises a plurality of combustible gas detection sensors and a combustible gas detection master control box, the combustible gas detection sensors are connected with the combustible gas detection master control box, and the plurality of combustible gas detection sensors are respectively arranged in an air inlet/outlet area, a potential hazardous gas leakage cabin and a main function cabin of the ship;
and the combustible gas detection master control box generates a second alarm signal when the combustible gas detection sensor detects that the gas concentration is higher than the gas concentration threshold value, and transmits the second alarm signal to the comprehensive display and control system.
6. The ship safety protection system for safe navigation in LNG diffusion environment according to claim 1, wherein the water curtain system comprises a plurality of seawater pumps and a plurality of water curtain nozzles, the seawater pumps are arranged inside the ship cabin, the water curtain nozzles are transversely arranged on the side of the ship, the water curtain nozzles are connected with the seawater pumps through water pipes, and the water pipes are provided with normally closed communication valves which are connected with the master control system.
7. The safety shield system for a ship safely sailing under LNG diffusion environment of claim 1, wherein the cabin positive air pressure maintaining system comprises an air release device, a CO2 removing device and a differential pressure relief valve;
the air release device is arranged in the auxiliary equipment cabin and is connected to a personnel gathering area on the ship through a pipeline;
the CO2 removal device is placed in a personnel gathering area on the ship;
the pressure difference balance valve is arranged on each deck of the deck chamber.
8. The ship safety protection system for safe navigation in LNG diffusion environment of claim 1, wherein a plurality of power battery compartments are arranged in the ship, the power lithium battery system comprises a plurality of groups of energy storage batteries, each group of energy storage batteries is fixed in one battery compartment through a battery rack, and each battery compartment is internally provided with a combustible gas detection device, a fire alarm detection device, a ventilation fan, an air conditioner cabinet and a fire protection system.
9. The system of claim 8, wherein the fire protection system comprises a plurality of fire extinguishing units; when the fire alarm detection device detects that the battery compartment catches fire, generating a fire alarm signal;
and after receiving the fire alarm signal, the fire extinguishing system controls the fire extinguishing device to start, and the fire extinguishing device releases a heptafluoropropane fire extinguishing agent to the battery compartment.
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| CN202010292122.8A CN112249255A (en) | 2020-04-14 | 2020-04-14 | Ship safety protection system for safe navigation in LNG diffusion environment |
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| CN113247177A (en) * | 2021-06-30 | 2021-08-13 | 广船国际有限公司 | Ship methanol supply cabin, dual-fuel ship and control method |
| CN113533646A (en) * | 2021-07-03 | 2021-10-22 | 南京盛航海运股份有限公司 | Ship gas environment detection device |
| CN113624412A (en) * | 2021-06-24 | 2021-11-09 | 上海江南长兴造船有限责任公司 | Combustible gas leakage identification system of marine generator and ship |
| CN113844606A (en) * | 2021-09-29 | 2021-12-28 | 中船黄埔文冲船舶有限公司 | Ship protection system |
| CN114432610A (en) * | 2022-03-04 | 2022-05-06 | 六安华晟智恒工业设计有限公司 | Fire-extinguishing escape ship with protection function |
| CN114814100A (en) * | 2022-04-25 | 2022-07-29 | 广船国际有限公司 | Protection system, fuel preparation cabin and ship |
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| CN113624412A (en) * | 2021-06-24 | 2021-11-09 | 上海江南长兴造船有限责任公司 | Combustible gas leakage identification system of marine generator and ship |
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| CN114432610A (en) * | 2022-03-04 | 2022-05-06 | 六安华晟智恒工业设计有限公司 | Fire-extinguishing escape ship with protection function |
| CN114814100A (en) * | 2022-04-25 | 2022-07-29 | 广船国际有限公司 | Protection system, fuel preparation cabin and ship |
| CN114814100B (en) * | 2022-04-25 | 2023-11-28 | 广船国际有限公司 | Protection system, fuel preparation cabin and ship |
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Application publication date: 20210122 |