Box-type power supply equipment for high-capacity ship

Abstract

A battery area and a functional area are arranged in a box body, the battery area and the functional area are separated through an end partition wall, a ceramic wool layer and a decorative plate layer are sequentially arranged on the box face of the box body from outside to inside, a plurality of stiffeners are arranged between the ceramic wool layer and the decorative plate layer, and an openable cabin door is arranged on the side face of the battery area. According to the invention, the number of the battery cabins is increased through the isolation walls, and a set of lithium iron phosphate battery system is integrated in each battery cabin, so that the battery energy density is improved, and the electric quantity of a single box breaks through the limitation of 2000KWH; switching of an air cooling scheme and a liquid cooling scheme is flexibly adapted, two sets of ventilation systems with different lines are designed, excessive influence on the structure and pipelines of a main area is avoided, and the compatibility is good; the whole body meets the A60 partition fireproof requirement; and fire-fighting, ventilation and monitoring assemblies are arranged in the box to enrich the functions of the whole box.

Description

Technical Field

[0001] The invention relates to the technical field of container production, and more particularly to a large-capacity marine box-type power supply device. Background Art

[0002] With the development of new energy technology, the application of this technology in the field of marine vessels has greatly facilitated the problem of power endurance of transport ships. Among them, containerized energy storage based on lithium battery energy storage has become an indispensable part of the new energy power generation side due to its advantages such as large capacity, high integration, mobility, strong adaptability and expandability. As a key part of the energy storage system, the reliability and safety of the structure of the energy storage battery compartment are of vital importance to users, especially in open-air use environments. The sealing protection of the battery compartment, system cooling and heat dissipation, fire control, and battery cluster power management are all key factors in the safety of the energy storage system.

[0003] Existing marine energy storage boxes are normally designed with the appearance of a 20-foot standard high box, which is divided into four main areas: battery compartment, fire compartment, junction compartment and cooling compartment. Due to the restrictions of China Classification Society's "E-25 Marine Containerized Mobile Power Supply", the maximum battery capacity of a single battery compartment cannot be greater than 2000KWH. Even higher-density battery cells cannot break through the battery capacity limit of a single compartment, which especially hinders the endurance optimization of large energy storage boxes. Summary of the invention

[0004] In view of the deficiencies in the prior art, an object of the present invention is to provide a large-capacity marine box-type power supply device to solve one or more of the above-mentioned problems.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A large-capacity marine box-type power supply device comprises a box body, wherein a battery area and a functional area are arranged in the box body, wherein the battery area and the functional area are separated by an end partition wall, wherein a ceramic wool layer and a decorative plate layer are arranged in sequence from the outside to the inside on the box surface of the box body, wherein a plurality of reinforcing members are arranged between the ceramic wool layer and the decorative plate layer, and an openable hatch is arranged on the side of the battery area;

[0007] The battery area is divided into at least two battery compartments by a partition wall, and a tightly arranged battery placement rack is provided in the battery compartment, a battery pack is provided on the battery placement rack, and a safety component is provided in the battery compartment around the battery placement rack;

[0008] The functional areas are divided into a cooling compartment, a fire fighting compartment and an integration compartment; the cooling compartment cools down the battery pack via a cooling pipe, and the fire fighting compartment is connected to the battery compartment via a fire vent for ventilation; the battery packs converge into the integration compartment, and the integration compartment is electrically connected to the safety component.

[0009] Furthermore, a liquid cooler is provided in the cooling cabin, and the liquid cooler is connected to multi-stage, circulating liquid cooling pipes in the battery area. The liquid cooling pipes pass through the isolation wall through MCT cabin penetration parts and are introduced into different battery cabins.

[0010] Furthermore, the cooling cabin is provided with a ventilating port, an air-cooled external machine is arranged in the cooling cabin, and the end partition wall is provided with a plurality of air-cooled internal machines corresponding to different battery compartments, and the air-cooled external machine is electrically connected to the air-cooled internal machine.

[0011] Furthermore, the vertical section of the fire fighting cabin is a T-shaped section, the top of the fire fighting cabin is a ventilation cavity extending to the cooling cabin and the integration cabin on both sides, and the ventilation cavity is provided with an emergency fan device;

[0012] The front of the fire fighting cabin is provided with an openable cabinet door, and the corresponding sides of the cooling cabin and the integrated cabin are provided with openable cabinet doors.

[0013] Furthermore, natural air inlets with fire dampers are respectively provided on both sides of the ventilation cavity on the fire cabin, a natural air outlet with a fire damper is correspondingly provided on the upper end of the back side of the box body, a corresponding induced draft fan is provided above the rear end of the battery cabin, the natural air inlet is connected to the natural air duct pointing downward at the front end of the corresponding battery cabin, and the natural air outlet is connected to the induced draft fan inside the battery cabin;

[0014] An integrated sound and light alarm, an MCT cabin penetration component and a deflation and do not enter alarm are provided in the center of the ventilation cavity on the fire cabin, and a sound and light alarm and an MCT cabin penetration component are also provided correspondingly on the back of the box body. The sound and light alarm and the deflation and do not enter alarm are electrically connected to the integrated cabin.

[0015] Furthermore, an integrated sound and light alarm, an MCT cabin penetration component and a deflation and no-entry alarm are provided on one side of the ventilation cavity of the fire cabin, and a sound and light alarm and an MCT cabin penetration component are correspondingly provided on the back of the box body, and the sound and light alarm and the deflation and no-entry alarm are electrically connected to the integrated cabin;

[0016] A centrifugal air outlet with a fireproof wind damper is provided in the center of the ventilation cavity on the fire compartment, a centrifugal exhaust fan is provided in the ventilation cavity on the fire compartment, a centrifugal air inlet with a fireproof wind damper is correspondingly provided at the lower end of the back side of the box body, the centrifugal air outlet is connected to the centrifugal exhaust fan, the centrifugal exhaust fan is connected to the interior of the battery compartment through a multi-pipeline, and the centrifugal air inlet is connected to the interior of the battery compartment.

[0017] Furthermore, a damper installation space is reserved at the lower end of the battery mounting frame at the rear end of the battery compartment.

[0018] Further, the safety components include cameras, smoke sensors, temperature sensors, combustible gas detectors, emergency lights and fire sprinklers;

[0019] A fire bottle, a fire alarm and an emergency ventilation control box are arranged in the lower end of the fire fighting cabin. The fire alarm is electrically connected to the safety component, and the emergency ventilation control box is electrically connected to the emergency fan equipment.

[0020] Furthermore, a junction cabinet is provided in the integration cabin, and the battery pack is converged to the junction cabinet. The front of the integration cabin is provided with a window air conditioner, a human-machine control panel, a communication port and an electrical socket in order from top to bottom, and all of them are electrically connected to the junction cabinet. The human-machine control panel is electrically connected to the safety component and the emergency fan equipment.

[0021] Furthermore, a ventilation hole is provided in the integrated cabin, and an emergency stop button and an emergency fire extinguishing switch button are also provided on the front of the integrated cabin, and the emergency stop button and the emergency fire extinguishing switch button are both electrically connected to the human-machine control panel.

[0022] In summary, the present invention has the following beneficial effects:

[0023] 1. The number of battery compartments is increased through the isolation wall. Each battery compartment is integrated with a set of lithium iron phosphate battery system. The battery cell of a single battery pack is above 280Ah, which improves the battery energy density and makes the power of a single box exceed the limit of 2000KWH;

[0024] 2. Flexible adaptation to air cooling and liquid cooling solutions, two sets of ventilation systems with different lines are designed, which will not cause too much impact on the structure and pipelines of the main areas and has good compatibility;

[0025] 3. The design of one centrifugal exhaust fan with multiple fans can simplify the structure and reduce costs; the diagonal setting of the air outlet can achieve better exhaust effect;

[0026] 4. The partition wall and the box body adopt the structure of ceramic wool coated with reinforcement parts, and the structural integrity is maintained with the help of MCT penetration parts to meet the A60 separation fire protection requirements;

[0027] 5. The interior is equipped with fire protection, ventilation, monitoring and other components to enrich the functions of the entire box. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A top view of the structure of the liquid cooling solution provided by the present invention;

[0029] Figure 2 A top view of the structure of the air cooling solution provided by the present invention;

[0030] Figure 3 A working principle diagram of the centrifugal exhaust fan solution provided by the present invention;

[0031] Figure 4 The external front view schematic diagram of the centrifugal exhaust fan solution provided by the present invention;

[0032] Figure 5 A schematic diagram of the external back side of the centrifugal exhaust fan solution provided by the present invention;

[0033] Figure 6 A front structural cross-sectional view of a centrifugal exhaust fan solution provided by the present invention;

[0034] Figure 7 A working principle diagram of the solution of using an induced draft fan provided by the present invention;

[0035] Figure 8 The external front view schematic diagram of the solution using the induced draft fan provided by the present invention;

[0036] Fig. 9 A schematic diagram of the external back side of the solution using the induced draft fan provided by the present invention;

[0037] Fig.10 A front structural cross-sectional view of a solution using an induced draft fan provided by the present invention;

[0038] Fig.11 An external side schematic diagram of an embodiment provided by the present invention.

[0039] In the figure: 10, battery compartment; 11, end partition wall; 12, ceramic cotton layer; 13, decorative board layer; 14, reinforcement; 15, cabin door; 16, partition wall; 17, battery mounting rack; 18, battery pack; 20, cooling cabin; 21, liquid cooler; 22, liquid cooling pipeline; 23, air-cooled external unit; 24, air-cooled internal unit; 30, fire cabin; 31, natural air inlet; 32, natural air duct; 33, natural air outlet; 34, induced draft fan; 35, sound and light alarm; 36, do not let out alarm; 37, centrifugal air outlet; 38, centrifugal exhaust fan; 39, centrifugal air inlet; 40, integrated cabin; 41, junction cabinet; 42, window air conditioner; 43, human-machine control panel; 44, communication port; 45, electrical socket; 46, emergency stop button; 47, emergency fire extinguishing switch button; 50, MCT cabin penetration. DETAILED DESCRIPTION

[0040] Embodiment 1:

[0041] The following is combined with Figure 1 , Figure 3-6 and Fig.11 The present invention is described in further detail.

[0042] A large-capacity marine box power supply device, such as Figure 1 and Figure 3As shown, the box is a 20-foot container, the outermost surface of the box is a ceramic wool layer 12, and a decorative plate layer 13 is arranged inside. A number of stiffeners 14 are arranged between the ceramic wool layer 12 and the decorative plate layer 13. In actual production, the stiffeners 14 are welded on the box, and then ceramic wool is laid on the outside of the stiffeners 14 to ensure that the box meets the A60 separation fire protection requirements. The decorative plate layer 13 is used for beautification and separation. The front end of the box is the functional area, and the rear end is the battery area. The battery area occupies most of the space in the box. The functional area and the battery area are separated by the end partition wall 11 at the front end. The battery area at the rear end is divided into two symmetrical battery compartments 10 by a partition plate. In accordance with the requirements of E-25, the partition plate uses a steel plate with a thickness greater than 4.5 mm, each of which integrates a set of lithium iron phosphate battery systems, supplemented by safety components such as cameras, smoke sensors, temperature sensors, combustible gas detectors, emergency lights and fire sprinklers. The battery compartment 10 contains tightly arranged battery racks 17, which are fully loaded with battery packs 18, except for the battery rack 17 at the rear end, which has a reserved space for installing a wind gate at the lower end. Safety components are provided around the battery racks 17 in the battery compartment 10 for monitoring, emergency fire extinguishing, lighting and other purposes. The battery cell of a single battery pack 18 is above 280Ah, which can further increase the battery energy density and the single-box power to break through the limit of 2000KWH. The functional areas at the front end are mainly divided into the cooling compartment 20 at the left end, the fire compartment 30 in the middle and the integrated compartment 40 at the right end. The fire compartment 30 is a T-shaped vertical cross-section structure as a whole, with a ventilation cavity at the top, and the parts of the ventilation cavity extending to both sides are located above the cooling compartment 20 and the integrated compartment 40. Emergency fan equipment is provided in the ventilation cavity, which is mainly used to ventilate the battery area and quickly exhaust air in an emergency. The lower end of the fire compartment 30 is equipped with a fire bottle, a fire alarm and an emergency ventilation control box. The fire alarm is electrically connected to the above safety components, and the emergency ventilation control box is electrically connected to the emergency fan equipment above. The principle is that once the safety component detects a fire, the fire alarm is triggered, and the emergency fan equipment is started through the emergency ventilation control box to exhaust internal smoke and air. The fire bottle is equipped with an automatic alarm fire extinguishing system, which automatically releases the fire extinguishing gas or liquid in the fire bottle when a fire occurs, or releases it manually. Fig.11 As shown, a corresponding door 15 is provided on the side of the battery compartment 10. An openable door is provided on the front of the fire compartment 30, and corresponding openable doors are provided on the left side of the cooling compartment 20 and the right side of the integrated compartment 40. The fire chamber itself is designed for ventilation, and ventilation holes are also provided in the cooling compartment 20 and the integrated compartment 40. The cooling compartment 20 cools down the battery pack 18 on the battery mounting rack 17 through a cooling pipe, and the fire compartment 30 is connected to the battery compartment 10 through a fire outlet for ventilation. The battery pack 18 converges into the integrated compartment 40, and the integrated compartment 40 itself is electrically connected to the functional area and the relevant electronic components of the battery area. The temperature, humidity, fire conditions, faults, etc. in the box can be automatically monitored and responded to through the integrated compartment 40, and it also has a certain margin for manual operation.

[0043] The overall structure of the box meets the A60 fire protection requirements. The thickness of the steel plate in the fire protection area of ​​the battery compartment 10 should be greater than 5mm. L-shaped supports are set on the wall. The spacing of the L-shaped supports meets the marine fire protection requirements. A60 cotton is laid on the wall panels and fixed with welding nails. The outermost side is the decorative board. The base frame of the battery compartment 10 is a 6mm thick steel plate and A60 cement is laid for fire protection and heat insulation. Square tubes are embedded in the steel plate to support the battery mounting frame 17. A movable frame is set between the battery mounting frame 17 and the supporting square tube. The movable frame, the embedded square tube and the battery mounting frame 17 are bolted together. The movable frame realizes the first laying of the A60 cement dressing. The battery mounting frame 17 is installed after the A60 cement is cured, effectively ensuring the laying integrity of the cement dressing. A layer of rubber pad is laid between the movable frame and the battery mounting frame 17 to buffer and level the battery mounting frame 17. It can also be achieved by using a shock absorber in combination with a crossbeam. The front and rear ends of the box are pre-embedded with pads, and long bolts are pre-welded on the pads. After the battery mounting frame 17 is installed in place, the pre-embedded bolts are further fixed to the battery mounting frame 17 through adapters. Shaking the battery mounting frame 17 will cause excessive deformation, thereby squeezing the battery pack 18 on the battery mounting frame 17. Support plates are pre-welded at the edges of the floor and top plates, and decorative panels and floor keels are installed later.

[0044] like Figure 1 and Figure 6 As shown, a liquid cooler 21 is provided in the cooling cabin 20, and the liquid cooler 21 is connected to the three-stage liquid cooling pipe 22 provided in the battery area. The liquid cooling pipe 22 is a circulation pipe, and is passed through the MCT cabin penetration piece 50 at important partition surfaces such as the end partition wall 11 and the isolation wall 16 and introduced into different areas. A set of liquid coolers 21 drives the three-stage liquid cooling pipeline to perform a refrigeration cycle, and the liquid cooler 21 adjusts the temperature of the liquid coolant in the pipeline to control the temperature of the battery pack 18. The primary liquid cooling is introduced into the battery compartment 10 through the two MCT cabin penetration pieces 50 of the end partition wall 11. During the process of the primary pipeline circulation in the battery compartment 10, the part that needs to pass through the isolation wall 16 also needs to use the MCT cabin penetration piece 50 for transition to ensure the integrity of the A60 fire separation system of each compartment. The secondary pipeline and the tertiary pipeline to the battery pack 18 are then connected to the primary pipeline in a conventional manner.

[0045] like Figure 4 and Figure 5As shown, an integrated sound and light alarm 35, an MCT cabin penetration part 50 and a deflation alarm 36 are provided on the left side of the ventilation cavity of the fire cabin 30, and a sound and light alarm 35 and an MCT cabin penetration part 50 are provided on the back of the box body. The sound and light alarm 35 and the deflation alarm 36 are electrically connected to the integrated cabin 40. A centrifugal air outlet 37 with a fire damper is provided in the center of the ventilation cavity of the fire cabin 30, and a centrifugal exhaust fan 38 is provided in the ventilation cavity of the fire cabin 30. Two centrifugal air inlets 39 with fire dampers are provided at the lower end of the back of the box body. The centrifugal air outlet 37 is connected to the centrifugal exhaust fan 38, and the centrifugal exhaust fan 38 is connected to different battery compartments 10 inside through a one-to-two pipeline. The centrifugal air inlets 39 are respectively connected to the corresponding battery compartments 10. Each battery compartment 10 is provided with a fire damper at the centrifugal air inlet 39 and the centrifugal air outlet 37. The centrifugal air outlet 37 uses a set of centrifugal exhaust fans 38 to drive the air intake of the two battery compartments 10. Under the premise of ensuring the exhaust effect, the structure is simplified and the cost is reduced. Since the density of the gas generated by battery combustion is much lighter than that of air, the centrifugal air outlet 37 should be set at the top and the centrifugal air inlet 39 should be set at the bottom diagonally to ensure the exhaust effect in the battery compartment 10. A space of about one battery pack 18 is reserved at the lower end of the rearmost battery mounting frame for installing a fire damper. External air enters the battery compartment 10 from the centrifugal air inlet 39 at the tail, floats upward, and is sucked out from the centrifugal air outlet 37 and discharged from the front end of the box with the help of the centrifugal exhaust fan 38.

[0046] like Figure 4 As shown, a junction cabinet 41 is provided in the integrated cabin 40, and the battery pack 18 is converged to the junction cabinet 41. The front of the integrated cabin 40 is provided with a window air conditioner 42, a human-machine control panel 43, an emergency stop button 46, an emergency fire extinguishing switch button 47, a communication port 44 and an electrical socket 45 in order from top to bottom, and the above modules are all electrically connected to the junction cabinet 41, and the human-machine control panel 43 is also electrically connected to key equipment such as safety components and emergency fan equipment. The junction cabinet 41 plays a power supply role, the human-machine control panel 43 plays a human-machine interactive control role, and other components play corresponding roles as the name implies. The auxiliary electrical system of the entire box is integrated in the junction cabinet 41. The battery pack 18 converts direct current into alternating current through the inverter of the junction cabinet 41, and supplies power to electrical equipment such as lighting, heat dissipation, and fire protection in the box, and is connected to the UPS. The battery pack 18 can still operate stably after power failure. The window air conditioner 42 in the junction cabin dissipates heat for the remaining components. The high-voltage wire harness and communication wire harness in the battery compartment 10 are connected to the junction cabinet 41 through the MCT penetration piece 50 at the bottom, meeting the fire protection requirements.

[0047] Embodiment 2:

[0048] The following is combined with Figure 7-10 The present invention is described in further detail.

[0049] The difference from Example 1 is that Figure 7-10 As shown, the centrifugal exhaust fan 38 is replaced with an induced draft fan 34, and the air flow route is redesigned. Specifically, natural air inlets 31 with fire dampers are respectively provided on both sides of the ventilation cavity on the fire-fighting cavity, and a natural air outlet 33 with a fire damper is correspondingly provided on the upper end of the back of the box body. A corresponding induced draft fan 34 is provided on the rear end of the battery compartment 10, and the induced draft fan 34 is connected to the natural air outlet 33, and the natural air inlet 31 is connected to the natural air duct 32 downward at the front end of the battery compartment 10. An integrated sound and light alarm 35, an MCT cabin penetration component 50, and a deflation alarm 36 are provided in the center of the ventilation cavity on the fire-fighting compartment 30, and a sound and light alarm 35 and an MCT cabin penetration component 50 are also correspondingly provided on the back of the box body, and the sound and light alarm 35 and the deflation alarm 36 are electrically connected to the integrated compartment 40. External air enters the battery compartment 10 from the front end of the box body and flows downward in the battery compartment 10 under the guidance of the duct, and is sucked out of the battery compartment 10 by the induced draft fan 34 above the rear end.

[0050] Embodiment 3:

[0051] The following is combined with Figure 2 The present invention is described in further detail.

[0052] The difference from Example 1 is that Figure 2 As shown, the liquid cooling means is replaced by air cooling means to cool the battery pack 18. Specifically, an air cooling external unit 23 is provided in the cooling compartment 20, and a separate air cooling internal unit 24 is provided in the end partition wall 11 corresponding to each of the two battery compartments 10, and the air cooling external unit 23 and the air cooling internal unit 24 are electrically connected. One set of air cooling external units 23 drives two air conditioning internal units to adjust the temperature in the battery compartment 10 respectively, thereby controlling the temperature of the battery pack 18.

[0053] It should be noted that this specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make non-creative modifications to this embodiment as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A large-capacity marine box-type power supply device, comprising a box body, wherein a battery area and a functional area are arranged in the box body, and the battery area and the functional area are separated by an end partition wall (11), characterized in that: The box surface of the box body is provided with a ceramic cotton layer (12) and a decorative board layer (13) in sequence from the outside to the inside, a plurality of reinforcing members (14) are provided between the ceramic cotton layer (12) and the decorative board layer (13), and an openable hatch (15) is provided on the side of the battery area; The battery area is divided into at least two battery compartments (10) by a partition wall (16); a battery mounting rack (17) arranged closely and fitting together is provided in the battery compartment (10); a battery pack (18) is provided on the battery mounting rack (17); and a safety component is provided around the battery mounting rack (17) in the battery compartment (10); The functional areas are divided into a cooling compartment (20), a fire compartment (30) and an integration compartment (40); the cooling compartment (20) cools the battery pack (18) via a cooling pipe, the fire compartment (30) is connected to the battery compartment (10) via a fire outlet and ventilates; the battery pack (18) converges into the integration compartment (40), and the integration compartment (40) is electrically connected to the safety component.

2. The large-capacity marine box-type power supply device according to claim 1 is characterized in that: A liquid cooler (21) is provided in the cooling chamber (20), and the liquid cooler (21) is connected to a multi-stage, circulating liquid cooling pipe (22) in the battery area. The liquid cooling pipe (22) passes through the isolation wall (16) through an MCT chamber penetration piece (50) and is introduced into different battery chambers (10).

3. The large-capacity marine box-type power supply device according to claim 1 is characterized in that: The cooling chamber (20) is provided with a ventilating port, an air-cooling external machine (23) is provided in the cooling chamber (20), the end partition wall (11) is provided with a plurality of air-cooling internal machines (24) corresponding to different battery chambers (10), and the air-cooling external machine (23) is electrically connected to the air-cooling internal machine (24).

4. The large-capacity marine box-type power supply device according to claim 1 is characterized in that: The vertical cross section of the fire fighting cabin (30) is a T-shaped cross section, and the top of the fire fighting cabin (30) is a ventilation cavity extending to the top of the cooling cabin (20) and the integration cabin (40) on both sides, and an emergency fan device is arranged in the ventilation cavity; The fire fighting cabin (30) is provided with an openable cabinet door on the front, and the cooling cabin (20) and the integration cabin (40) are provided with openable cabinet doors on the corresponding sides.

5. The large-capacity marine box-type power supply device according to claim 4 is characterized in that: Both sides of the ventilation cavity on the fire cabin (30) are respectively provided with natural air inlets (31) with fire dampers, and the upper end of the back side of the box body is correspondingly provided with a natural air outlet (33) with a fire damper, and a corresponding induced draft fan (34) is provided above the rear end of the battery cabin (10), and the natural air inlet (31) is connected to a natural air duct (32) facing downward at the front end of the corresponding battery cabin (10), and the natural air outlet (33) is connected to the induced draft fan (34) inside the battery cabin (10); An integrated sound and light alarm (35), an MCT cabin penetration component (50) and a deflation and no-entry alarm (36) are provided at the center of the ventilation cavity on the fire cabin (30), and a sound and light alarm (35) and an MCT cabin penetration component (50) are correspondingly provided on the back of the box body, and the sound and light alarm (35) and the deflation and no-entry alarm (36) are electrically connected to the integrated cabin (40).

6. The large-capacity marine box-type power supply device according to claim 4 is characterized in that: An integrated sound and light alarm (35), an MCT cabin penetration component (50) and a deflation and no-entry alarm (36) are provided on one side of the ventilation cavity on the fire cabin (30), and a sound and light alarm (35) and an MCT cabin penetration component (50) are correspondingly provided on the back side of the box body, and the sound and light alarm (35) and the deflation and no-entry alarm (36) are electrically connected to the integrated cabin (40); A centrifugal air outlet (37) with a fireproof damper is provided at the center of the ventilation cavity on the fire compartment (30), a centrifugal exhaust fan (38) is provided in the ventilation cavity on the fire compartment (30), a centrifugal air inlet (39) with a fireproof damper is correspondingly provided at the lower end of the back of the box body, the centrifugal air outlet (37) is connected to the centrifugal exhaust fan (38), the centrifugal exhaust fan (38) is connected to the interior of the battery compartment (10) through a multi-channel pipeline, and the centrifugal air inlet (39) is connected to the interior of the battery compartment (10).

7. The large-capacity marine box-type power supply device according to claim 6 is characterized in that: A damper installation space is reserved at the lower end of the battery placement frame (17) at the rear end of the battery compartment (10).

8. The large-capacity marine box-type power supply device according to claim 4 is characterized in that: The safety components include cameras, smoke sensors, temperature sensors, combustible gas detectors, emergency lights and fire sprinklers; A fire bottle, a fire alarm and an emergency ventilation control box are arranged in the lower end of the fire fighting cabin (30); the fire alarm is electrically connected to the safety component, and the emergency ventilation control box is electrically connected to the emergency fan equipment.

9. The large-capacity marine box-type power supply device according to claim 4 is characterized in that: The integration cabin (40) is provided with a junction cabinet (41), and the battery pack (18) is converged to the junction cabinet (41). The front of the integration cabin (40) is provided with a window air conditioner (42), a human-machine control panel (43), a communication port (44) and an electrical socket (45) in order from top to bottom, and all of them are electrically connected to the junction cabinet (41), and the human-machine control panel (43) is electrically connected to the safety component and the emergency fan equipment.

10. The large-capacity marine box-type power supply device according to claim 9 is characterized in that: The integrated cabin (40) is provided with a ventilation hole, and an emergency stop button (46) and an emergency fire extinguishing switch button (47) are also provided on the front of the integrated cabin (40), and the emergency stop button (46) and the emergency fire extinguishing switch button (47) are both electrically connected to the human-machine control panel (43).

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