CN111897272A - Management and control device suitable for boats and ships bank electricity system and control system thereof - Google Patents
Management and control device suitable for boats and ships bank electricity system and control system thereof Download PDFInfo
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- CN111897272A CN111897272A CN202010832040.8A CN202010832040A CN111897272A CN 111897272 A CN111897272 A CN 111897272A CN 202010832040 A CN202010832040 A CN 202010832040A CN 111897272 A CN111897272 A CN 111897272A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
Abstract
The invention discloses a management and control device suitable for a ship shore power system, and relates to the related technical field of ship shore power. The invention also discloses a control system of the management and control device suitable for the ship shore power system, which comprises a shore power connection module, a transformer module, a power-off protection module, a ship-borne power receiving module and a ship shore connection module, wherein the ship shore connection module is internally provided with a wiring module, a current conversion module, a power transmission module, a detection module, an alarm module, a central processing unit and a fire extinguishing system module. According to the invention, the ship shore connection cabinet is arranged, so that the manual connection step is omitted, the electric operation is adopted for connection, the ship shore connection cabinet can be accurately and quickly connected with a shipborne circuit, a ship shore power system is adopted for supplying power to the ship, and the pollutant emission amount during the berthing period of the ship at the port is greatly reduced.
Description
Technical Field
The invention relates to the technical field of ship shore power correlation, in particular to a control device and a control system suitable for a ship shore power system.
Background
As a window opened to the outside in China and an important link in a modern logistics supply chain, the port has energy consumption which has a considerable proportion in the whole transportation industry. When ships are parked at ports to load and unload cargos, most of electricity used by various electrical equipment of the ships comes from ship power generation diesel engines, and the diesel engines of the ships running at the ports cause great pressure on the environments of the ports. If the ship in port can switch shore power, the power generation diesel engine can be turned off, and therefore waste gas, oil water and noise generated during operation of the ship power generation diesel engine can be greatly reduced. Meanwhile, the shore power for the ship to approach the port can bring economic benefits to the port side and the ship side, and the consumption of the ship to energy is reduced. On the whole, the ship shore power supply technology has important significance for environmental protection, energy conservation, emission reduction and sustainable development in China.
The ship shore power supply object is a ship self power system and a shore power supply on the shore, and the ship shore power system can be divided into a low-voltage power supply mode and a high-voltage power supply mode according to different voltage levels of the shore power supply on the ship, so that the requirement of more accurately and quickly capturing a parallel operation closing point is met. When the ship uses a shore power supply, the voltage, the frequency and the phase angle difference of the ship generator are adjusted to be synchronous with the shore power supply, and finally synchronous parallel operation is completed. Meanwhile, the ship shore power supply parallel operation device is a part of the whole shore power supply system, and in order to normally monitor the parallel operation device and the state of the parallel operation device in the parallel operation process, the parallel operation device has the remote communication capacity, and a monitoring center on the shore can read and record information such as the parallel operation process, time and faults.
Among the prior art, boats and ships bank electricity system management and control ability is poor, appears the potential safety hazard easily when using to, it is harder when electric wire on boats and ships is connected with the bank electricity, influences work efficiency. Therefore, it is necessary to provide a control device and a control system thereof suitable for a ship shore power system to solve the above problems.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a management and control device suitable for a ship shore power system and a control system thereof, and solves the problems of low safety coefficient and inconvenient wiring between a ship and the shore power of the conventional ship shore power system.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
a management and control device suitable for a ship shore power system comprises a ship shore connection cabinet, wherein a wiring groove is formed in the middle of the ship shore connection cabinet, one side of the wiring groove is fixedly connected with a wiring port, an electric wire connector is arranged in the middle of the wiring groove, one end of the electric wire connector is fixedly connected with a ship-mounted electric wire, and two sides of the electric wire connector are fixedly connected with clamping blocks;
the ship shore connection cabinet is characterized in that the upper end and the lower end of the interior of the ship shore connection cabinet are both provided with first mounting grooves, hydraulic pumps are arranged in the first mounting grooves, one ends of the hydraulic pumps penetrate through the first mounting grooves and are fixedly connected with fixing plates, and one sides of the fixing plates are provided with clamping grooves;
one side of the hydraulic pump is fixedly connected with an adjusting block, the middle part of the adjusting block is in threaded connection with a threaded rod, one end of the threaded rod penetrates through the adjusting block and is movably connected with a first mounting groove through a bearing, a speed change gear is fixedly connected to the outer side of one end of the threaded rod, and a first motor is arranged at one end of the speed change gear;
the second mounting groove has been seted up to one side of cabinet is connected to the ship bank, be equipped with the cabinet door in the second mounting groove, there is the pulley bottom of cabinet door through round pin axle swing joint, the pulley has a plurality ofly, and a plurality of pulleys are equidistant range, the top fixedly connected with rack of cabinet door, the top of rack is equipped with second motor and transmission gear, second motor and second mounting groove fixed connection, transmission gear and second mounting groove swing joint.
Optionally, two clamping blocks are provided, and the clamping grooves and the clamping blocks are equal in number and are connected in an attaching manner;
and the wire joint is attached and connected with the wiring port.
Optionally, the first motor is fixedly connected with the first mounting groove, a gear is fixedly connected to the first motor, and the speed change gear is meshed with the gear on the first motor.
Optionally, the upper end and the lower end of the first mounting groove are both provided with limiting grooves, limiting blocks are attached to the limiting grooves, and the limiting blocks are fixedly connected with the adjusting blocks.
Optionally, a gear is fixedly connected to the second motor, one end of the transmission gear is meshed with the rack, and the other end of the transmission gear is meshed with the gear on the second motor.
Optionally, the cabinet door has two, and the opening has all been seted up at the junction of two cabinet doors, the wire terminal is connected with the opening laminating.
A control system of a management and control device suitable for a ship shore power system comprises a shore power connection module, a transformer module, a power-off protection module, a ship-borne power receiving module and a ship shore connection module, wherein a wiring module, a current conversion module, a power transmission module, a detection module, an alarm module, a central processing unit and a fire extinguishing system module are arranged inside the ship shore connection module;
the output end of the wiring module is electrically connected with the input end of the current conversion module, and the output end of the current conversion module is electrically connected with the input end of the power transmission module;
the input of detection module and fire extinguishing systems module all is connected with the output electricity of transmission of electricity module, the input of central processing unit is connected to detection module's output electricity, the input of alarm module and fire extinguishing systems module all is connected with central processing unit's output electricity.
Optionally, the input of transformer module is connected to shore power connection module's output electricity, the input of outage protection module is connected to transformer module's output electricity, the input of ship bank connection module is connected to the output electricity of outage protection module, the input of ship-borne power module is connected to ship bank connection module's output electricity.
Optionally, a temperature sensor, a smoke sensor, a data analysis module and a dry powder fire extinguishing module are arranged inside the fire extinguishing system module, the temperature sensor is a TO-5 packaged infrared temperature sensor, and the smoke sensor is an LB-62 smoke sensor.
Optionally, the output ends of the temperature sensor and the flue gas sensor are electrically connected with the input end of the data analysis module, and the output end of the data analysis module is electrically connected with the input end of the dry powder fire extinguishing module.
(III) advantageous effects
The invention provides a control device and a control system thereof suitable for a ship shore power system, which have the following beneficial effects:
(1) according to the ship shore connection cabinet, the ship shore connection cabinet is arranged, the manual connection step is omitted during connection, the ship shore connection cabinet is connected through electric operation, the ship shore connection cabinet can be accurately and quickly connected with a ship-borne circuit, time and labor are saved, the ship shore connection cabinet is accurate and efficient, the clamping block is arranged at the wire joint, the limiting effect is achieved, the wire joint is prevented from slipping, the firm fixing effect is achieved, and the phenomenon of circuit breaking caused by the fact that the wire joint is not firmly connected is avoided.
(2) According to the invention, the ship shore power system is adopted to supply power to the ship, so that the pollutant emission quantity during the berthing of the ship at the port is greatly reduced, the current conversion and detection can be carried out by arranging the ship shore connection module, the influence of overlarge current on the power transmission function of the device is avoided, the safety of the ship shore power system is greatly increased, and the fire extinguishing system module is arranged so that the ship shore connection system can be put out a fire in an emergency fire extinguishing mode when an accident occurs, so that the device is protected.
Drawings
FIG. 1 is a schematic front view of a ship-shore connection cabinet structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the ship-shore connection cabinet structure of the present invention;
FIG. 3 is a schematic cross-sectional view of a second mounting groove structure according to the present invention;
FIG. 4 is a schematic view of a wire-joint structure according to the present invention;
FIG. 5 is a diagram of a control system for shore power of a ship according to the present invention;
FIG. 6 is a block schematic view of the ship-to-shore connection system of the present invention;
fig. 7 is a block schematic diagram of the fire suppression system of the present invention.
In the figure: 1-ship shore connection cabinet, 11-wiring groove, 12-wiring port, 2-wire connector, 21-ship-borne wire, 22-clamping block, 3-first installation groove, 31-hydraulic pump, 32-fixing plate, 33-clamping groove, 34-adjusting block, 35-threaded rod, 36-first motor, 37-speed change gear, 38-limiting groove, 39-limiting block, 4-second installation groove, 41-cabinet door, 42-pulley, 43-rack, 44-second motor, 45-transmission gear, 5-shore electric connection module, 51-transformer module, 52-power-off protection module, 53-ship-borne power receiving module, 6-ship shore connection module, 61-wiring module, 62-current conversion module, 63-power transmission module, 64-detection module, 65-alarm module, 66-central processor, 7-fire extinguishing system module, 71-temperature sensor, 72-smoke sensor, 73-data analysis module, 74-dry powder fire extinguishing module.
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.
In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and 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, are not to be considered as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected or detachably connected; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
According to the technical scheme provided by the invention as shown in figures 1-4:
a management and control device suitable for a ship shore power system comprises a ship shore connection cabinet 1, wherein a wiring groove 11 is formed in the middle of the ship shore connection cabinet 1, one side of the wiring groove 11 is fixedly connected with a wiring port 12, an electric wire connector 2 is arranged in the middle of the wiring groove 11, one end of the electric wire connector 2 is fixedly connected with a shipborne electric wire 21, two sides of the electric wire connector 2 are both fixedly connected with clamping blocks 22, the clamping blocks 22 are arranged at the electric wire connector 2, a limiting effect is achieved, the electric wire connector 2 is prevented from slipping, a firm fixing effect is achieved, and the phenomenon of circuit breaking caused by the fact that the electric wire connector 2 is connected insecurely is avoided;
the ship shore connection cabinet 1 is characterized in that the upper end and the lower end of the interior of the ship shore connection cabinet 1 are respectively provided with a first installation groove 3, a hydraulic pump 31 is arranged in the first installation groove 3, one end of the hydraulic pump 31 penetrates through the first installation groove 3 and is fixedly connected with a fixed plate 32, one side of the fixed plate 32 is provided with a clamping groove 33, and by arranging the ship shore connection cabinet 1, the step of manual connection is omitted during connection, electric operation is adopted for connection, the ship shore connection cabinet can be accurately and rapidly connected with a ship-borne circuit, and the ship shore connection cabinet is time-;
one side of the hydraulic pump 31 is fixedly connected with an adjusting block 34, the middle part of the adjusting block 34 is in threaded connection with a threaded rod 35, one end of the threaded rod 35 penetrates through the adjusting block 34 and is movably connected with the first mounting groove 3 through a bearing, the outer side of one end of the threaded rod 35 is fixedly connected with a speed change gear 37, and one end of the speed change gear 37 is provided with a first motor 36;
As an optional technical scheme of the invention:
the number of the clamping blocks 22 is two, the clamping grooves 33 are equal to the number of the clamping blocks 22 and are connected in an attaching mode, and therefore the balancing effect is achieved, and the wire connector 2 is prevented from deviating;
the wire connector 2 is attached to the wire connection port 12.
As an optional technical scheme of the invention:
the first motor 36 is fixedly connected with the first mounting groove 3, a gear is fixedly connected to the first motor 36, and the speed changing gear 37 is meshed with the gear on the first motor 36.
As an optional technical scheme of the invention:
limiting grooves 38 have all been seted up at the upper and lower both ends of first mounting groove 3, and limiting groove 38 internal laminating is connected with stopper 39, and stopper 39 and regulating block 34 fixed connection through setting up limiting grooves 38 and stopper 39, provide movable track for regulating block 34, have guaranteed the stability of device.
As an optional technical scheme of the invention:
a gear is fixedly connected to the second motor 44, one end of the transmission gear 45 is meshed with the rack 43, and the other end of the transmission gear 45 is meshed with the gear on the second motor 44.
As an optional technical scheme of the invention:
the cabinet door 41 has two, and the opening has all been seted up at the junction of two cabinet doors 41, and wire connector 2 is connected with the opening laminating.
The working principle is as follows: when the electric wire connector 2 is in operation, firstly, the electric wire connector 2 is placed in the wiring slot 11, the clamping block 22 is aligned with the clamping groove 33, then the hydraulic pump 31 is started, the hydraulic pump 31 drives the fixing plate 32 to move inwards, the fixing plate 32 clamps the electric wire connector 2, then the first motor 36 is started, the first motor 36 drives the threaded rod 35 to rotate through the speed change gear 37, the threaded rod 35 drives the hydraulic pump 31 to move through the adjusting block 34, the hydraulic pump 31 drives the electric wire connector 2 to move through the fixing plate 32, when the electric wire connector 2 is inserted into the wiring opening 12, the first motor 36 is stopped, then the second motor 44 is started, the second motor 44 drives the cabinet doors 41 to move through the transmission gear 45, and when the two cabinet doors 41 are attached and connected, the second motor 44 is stopped, so that the connection operation.
According to the present invention, as shown in fig. 5 to 7, there is provided a technical solution:
a control system suitable for a management and control device of a ship shore power system comprises a shore power connection module 5, a transformer module 51, a power-off protection module 52, a shipborne power receiving module 53 and a ship shore connection module 6, wherein the ship shore power system is adopted for supplying power to a ship, so that the pollutant emission quantity during the berthing period of the ship at a port is greatly reduced, a wiring module 61, a current conversion module 62, a power transmission module 63, a detection module 64, an alarm module 65, a central processing unit 66 and a fire extinguishing system module 7 are arranged in the ship shore connection module 6, current conversion and detection can be carried out by arranging the ship shore connection module 6, the power transmission function of the device is prevented from being influenced by overlarge current, and the safety of the ship shore power system is greatly improved;
the output end of the wiring module 61 is electrically connected with the input end of the commutation module 62, and the output end of the commutation module 62 is electrically connected with the input end of the power transmission module 63;
the input ends of the detection module 64 and the fire extinguishing system module 7 are electrically connected with the output end of the power transmission module 63, the output end of the detection module 64 is electrically connected with the input end of the central processing unit 66, and the input ends of the alarm module 65 and the fire extinguishing system module 7 are electrically connected with the output end of the central processing unit 66.
As an optional technical scheme of the invention:
the output end of the shore power connection module 5 is electrically connected with the input end of the transformer module 51, the output end of the transformer module 51 is electrically connected with the input end of the power-off protection module 52, the output end of the power-off protection module 52 is electrically connected with the input end of the shore power connection module 6, and the output end of the shore power connection module 6 is electrically connected with the input end of the shipborne powered module 53.
As an optional technical scheme of the invention:
the fire extinguishing system module 7 is internally provided with a temperature sensor 71, a smoke sensor 72, a data analysis module 73 and a dry powder fire extinguishing module 74, the temperature sensor 71 is a TO-5 packaged infrared temperature sensor, the smoke sensor 72 is an LB-62 smoke sensor, and by arranging the fire extinguishing system module 7, a ship-shore connecting system 6 can be extinguished in an emergency fire extinguishing mode when an accident happens, so that the device is protected.
As an optional technical scheme of the invention:
the output ends of the temperature sensor 71 and the smoke sensor 72 are electrically connected with the input end of the data analysis module 73, and the output end of the data analysis module 73 is electrically connected with the input end of the dry powder fire extinguishing module 74.
The working principle is as follows: when the ship shore power system works, firstly, power is transmitted through the shore power connection module 5, current is reduced in voltage through the transformer module 51 and then enters the power-off protection module 52, and then the power is transmitted into the ship-borne power receiving module 53 through the shore power connection module 6 to complete power transmission operation, when the current is too large, the detection module 64 transmits a signal to the alarm module 65, the alarm module 65 gives an alarm, the current conversion module 62 is adjusted, when the temperature is too high or the ship shore power system 6 catches fire, the temperature sensor 71 and the smoke sensor 72 transmit the signal to the data analysis module 73, the data analysis module 73 transmits the signal to the central processor 75, and the central processor 75 controls the dry powder fire extinguishing module 74 to extinguish the fire and complete fire extinguishing treatment.
It is noted that in the present disclosure, unless otherwise explicitly specified or limited, a first feature "on" or "under" a second feature may be directly contacted with the first and second features, or indirectly contacted with the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a management and control device suitable for boats and ships bank electricity system, includes ship bank connection cabinet (1), its characterized in that: a wiring groove (11) is formed in the middle of the ship shore connection cabinet (1), a wiring port (12) is fixedly connected to one side of the wiring groove (11), an electric wire connector (2) is arranged in the middle of the wiring groove (11), one end of the electric wire connector (2) is fixedly connected with a ship-borne electric wire (21), and clamping blocks (22) are fixedly connected to two sides of the electric wire connector (2);
the ship shore connection cabinet is characterized in that the upper end and the lower end of the interior of the ship shore connection cabinet (1) are respectively provided with a first installation groove (3), a hydraulic pump (31) is arranged in the first installation groove (3), one end of the hydraulic pump (31) penetrates through the first installation groove (3) and is fixedly connected with a fixed plate (32), and one side of the fixed plate (32) is provided with a clamping groove (33);
an adjusting block (34) is fixedly connected to one side of the hydraulic pump (31), a threaded rod (35) is connected to the middle of the adjusting block (34) in a threaded mode, one end of the threaded rod (35) penetrates through the adjusting block (34) and is movably connected with the first mounting groove (3) through a bearing, a speed change gear (37) is fixedly connected to the outer side of one end of the threaded rod (35), and a first motor (36) is arranged at one end of the speed change gear (37);
second mounting groove (4) have been seted up to one side of ship bank connection cabinet (1), be equipped with cabinet door (41) in second mounting groove (4), there are pulley (42) bottom of cabinet door (41) through round pin axle swing joint, pulley (42) have a plurality ofly, and a plurality of pulley (42) are equidistant range, the top fixedly connected with rack (43) of cabinet door (41), the top of rack (43) is equipped with second motor (44) and transmission gear (45), second motor (44) and second mounting groove (4) fixed connection, transmission gear (45) and second mounting groove (4) swing joint.
2. The management and control device suitable for boats and ships shore power system of claim 1, characterized in that:
the number of the clamping blocks (22) is two, and the clamping grooves (33) are equal to the number of the clamping blocks (22) and are connected in an attaching mode;
the wire connector (2) is attached to the wiring port (12).
3. The management and control device suitable for boats and ships shore power system of claim 1, characterized in that:
the first motor (36) is fixedly connected with the first mounting groove (3), a gear is fixedly connected to the first motor (36), and the speed change gear (37) is meshed with the gear on the first motor (36).
4. The management and control device suitable for boats and ships shore power system of claim 1, characterized in that:
spacing groove (38) have all been seted up at the upper and lower both ends of first mounting groove (3), stopper (39) are connected with in spacing groove (38) the laminating, stopper (39) and regulating block (34) fixed connection.
5. The management and control device suitable for boats and ships shore power system of claim 1, characterized in that:
the gear is fixedly connected to the second motor (44), one end of the transmission gear (45) is meshed with the rack (43), and the other end of the transmission gear (45) is meshed with the gear on the second motor (44).
6. The management and control device suitable for boats and ships shore power system of claim 1, characterized in that:
the cabinet door (41) have two, and the opening has all been seted up at the junction of two cabinet doors (41), wire connector (2) are connected with the opening laminating.
7. The utility model provides a control system suitable for management and control device of boats and ships bank electricity system, includes bank electricity connection module (5), transformer module (51), outage protection module (52), on-board receives electric module (53) and bank connection module (6), its characterized in that: a wiring module (61), a current conversion module (62), a power transmission module (63), a detection module (64), an alarm module (65), a central processing unit (66) and a fire extinguishing system module (7) are arranged in the ship-shore connection module (6);
the output end of the wiring module (61) is electrically connected with the input end of a commutation module (62), and the output end of the commutation module (62) is electrically connected with the input end of a power transmission module (63);
the input of detection module (64) and fire extinguishing systems module (7) all is connected with the output electricity of transmission of electricity module (63), the input of central processing unit (66) is connected to the output electricity of detection module (64), the input of alarm module (65) and fire extinguishing systems module (7) all is connected with the output electricity of central processing unit (66).
8. The control system of the management and control device suitable for the ship shore power system of claim 7, wherein:
the input of transformer module (51) is connected to the output electricity of bank electricity connection module (5), the input of outage protection module (52) is connected to the output electricity of transformer module (51), the input of ship bank connection module (6) is connected to the output electricity of outage protection module (52), the input of ship-borne powered module (53) is connected to the output electricity of ship bank connection module (6).
9. The control system of the management and control device suitable for the ship shore power system of claim 7, wherein:
the fire extinguishing system is characterized in that a temperature sensor (71), a smoke sensor (72), a data analysis module (73) and a dry powder fire extinguishing module (74) are arranged inside the fire extinguishing system module (7), the temperature sensor (71) is a TO-5 packaged infrared temperature sensor, and the smoke sensor (72) is an LB-62 smoke sensor.
10. The control system of the management and control device suitable for the ship shore power system of claim 9, wherein:
the output ends of the temperature sensor (71) and the smoke sensor (72) are electrically connected with the input end of the data analysis module (73), and the output end of the data analysis module (73) is electrically connected with the input end of the dry powder fire extinguishing module (74).
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| CN202010832040.8A CN111897272A (en) | 2020-08-18 | 2020-08-18 | Management and control device suitable for boats and ships bank electricity system and control system thereof |
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| CN202010832040.8A CN111897272A (en) | 2020-08-18 | 2020-08-18 | Management and control device suitable for boats and ships bank electricity system and control system thereof |
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| CN111249651A (en) * | 2020-01-18 | 2020-06-09 | 中国人民解放军海军潜艇学院 | Fire fighting device for ship shore power system and control method |
| CN212073737U (en) * | 2020-05-09 | 2020-12-04 | 北京昊瑞昌科技有限公司 | Alternating current shore power pile |
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