CN216928688U

CN216928688U - Container type power supply

Info

Publication number: CN216928688U
Application number: CN202220376587.6U
Authority: CN
Inventors: 冯朝均; 刘建波; 龚木红; 江吉兵; 刘金成
Original assignee: Hubei Eve Power Co Ltd
Current assignee: Hubei Eve Power Co Ltd
Priority date: 2022-02-23
Filing date: 2022-02-23
Publication date: 2022-07-08
Anticipated expiration: 2032-02-23
Also published as: WO2023159852A1

Abstract

The utility model discloses a container type power supply. The container formula power includes: a container body; a battery rack is arranged in the container box body and used for placing a battery module; an explosion-proof system; a detection end of the explosion-proof system collects combustible gas information; a fire protection system; a detection end of the fire fighting system acquires fire fighting information, and the fire fighting system is electrically connected with the explosion-proof system; a battery management system; the battery management system is electrically connected with the explosion-proof system and the fire-fighting system respectively; the battery management system is used for transmitting the explosion-proof alarm information output by the explosion-proof system and the fire-fighting alarm information output by the fire-fighting system to an upper processing system; an energy management system; the energy management system is electrically connected with the battery management system, the explosion-proof system and the fire fighting system respectively. The embodiment of the utility model can improve the safety of the container type power supply.

Description

Container type power supply

Technical Field

The embodiment of the utility model relates to the technical field of power supplies, in particular to a container type power supply.

Background

At present, the technology of using a container storage battery as a movable power supply is widely applied, and particularly, the container type power supply is used for ships, is an important measure for improving the environment and reducing the carbon emission, and is an important way for realizing the double-carbon target in the shipping industry.

The existing container type power supply is generally improved and extended based on an energy storage container, and the current attention on the container type power supply focuses on how to increase the battery capacity, but the consideration on the operation safety of the container type power supply is lacked. However, the storage battery can accumulate heat in the using process, so that the temperature inside the container is increased, and the risk of fire or explosion exists; moreover, the lead-acid storage battery can generate hydrogen in the normal use process, and the hydrogen can be accumulated in the closed container, so that potential safety hazards exist. The exhaust system that current container formula power was equipped with is not enough to guarantee the safe operation of container formula power, and current container formula power lacks explosion-proof function. For the shipping industry, once thermal runaway inside the box-type power supply is triggered and more serious thermal diffusion occurs, the life safety of crew can be seriously influenced, and extremely serious impact can be caused on the health development of the industry.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a container type power supply, which aims to improve the safety of the container type power supply.

The embodiment of the utility model provides a container type power supply, which comprises:

a container body; a battery rack is arranged in the container box body and used for placing a battery module;

an explosion-proof system; a detection end of the explosion-proof system collects combustible gas information;

a fire protection system; a detection end of the fire fighting system acquires fire fighting information, and the fire fighting system is electrically connected with the explosion-proof system;

a battery management system; the battery management system is electrically connected with the explosion-proof system and the fire-fighting system respectively; the battery management system is used for transmitting the explosion-proof alarm information output by the explosion-proof system and the fire-fighting alarm information output by the fire-fighting system to an upper processing system;

an energy management system; the energy management system is electrically connected with the battery management system, the explosion-proof system and the fire fighting system respectively.

Optionally, the container body is a rectangular parallelepiped; the container body comprises a main beam frame, at least one container door and a plurality of wallboard plates; the box door and the wallboard plate block are both arranged on the main beam frame; eight corners of the container body are provided with protective corner fittings;

the wallboard panel comprising: the fireproof heat-insulating layer comprises an inner wall plate, a fireproof heat-insulating layer and an outer wall plate which are arranged in a stacked mode.

Optionally, the container type power supply further includes: a fireproof air brake; the side wall of the container body is provided with a vent, and the fireproof air brake is arranged in the vent;

the explosion-proof system includes: the device comprises a combustible gas detection device, an explosion-proof alarm device and an explosion-proof fan;

the combustible gas detection device is respectively connected with the explosion-proof alarm device and the explosion-proof fan; the explosion-proof fan is arranged corresponding to the fireproof air brake and is connected with the fireproof air brake; the explosion-proof alarm device is connected with the battery management system.

Optionally, the explosion-proof system further comprises:

a tank explosion-proof valve; the box body explosion-proof valve is arranged on the side wall of the container body;

a battery pressure relief valve; the battery pressure release valve is arranged on the shell of each battery pack in the battery module;

an explosion-proof lamp tube; the explosion-proof lamp tube is fixedly arranged on the inner wall of the container body.

Optionally, the fire fighting system comprises: two paths of detection devices, a fire control device, a fire alarm device, a fire extinguishing device and a forced control device;

the detection device, the fire-fighting alarm device, the fire extinguishing device and the forced control device are all connected with the fire-fighting control device; the fire-fighting alarm device is electrically connected with the battery management system;

the forced control device is arranged on the outer side of the container body and is connected with the fire-fighting control device through a bus; or the forced control device is arranged in an external control room and is in communication connection with the fire control device through a remote communication device.

Optionally, the battery rack includes at least two battery bearing layers, and the battery modules placed in one of the battery bearing layers form a battery cluster;

the battery management system includes: the system comprises a battery monitoring module, a slave control module and a master control module;

the number of the battery monitoring modules is the same as that of the battery modules, and the battery monitoring modules are arranged in one-to-one correspondence with the battery modules;

the number of the slave control modules is the same as that of the battery clusters, and the slave control modules are correspondingly connected with all the battery monitoring modules corresponding to the battery clusters;

the master control module is connected with all the slave control modules; the explosion-proof system and the fire-fighting system are electrically connected with the main control module.

Optionally, the energy management system comprises: a bidirectional conversion device and an energy management device;

the control end of the bidirectional conversion device is electrically connected with the energy management device, the first end of the bidirectional conversion device is electrically connected with the battery module, and the second end of the bidirectional conversion device is used for being electrically connected with a load or a charging power supply; the energy management device is also electrically connected with the battery module.

Optionally, the container type power supply further includes: a thermal management system;

the heat management system comprises an air cooling device; the air cooling device is electrically connected with the energy management system, and an air duct of the air cooling device is arranged at the top of the battery rack;

and/or the thermal management system comprises a liquid cooling device; the liquid cooling device comprises a liquid cooling device and a liquid cooling pipeline; the liquid cooling device is electrically connected with the energy management system, the liquid cooling device is connected with the liquid cooling pipeline, and the liquid cooling pipeline surrounds the battery rack.

Optionally, the container body comprises at least one door;

the container type power supply further comprises: emergency lighting equipment and dual redundant emergency power supplies; the emergency lighting equipment is arranged on each box door on the inner side of the container body; the emergency lighting equipment is electrically connected with each emergency power supply respectively.

Optionally, the container-style power supply further comprises a quick-connect connector; one end of the quick connector type connector is electrically connected with the energy management system, and the other end of the quick connector type connector is used for being electrically connected with a load or a charging power supply.

The container type power supply provided by the embodiment of the utility model is provided with an explosion-proof system, a fire-fighting system, a battery management system and an energy management system, wherein the battery management system and the energy management system are linked with the explosion-proof system and the fire-fighting system. Specifically, the battery management system receives the explosion-proof alarm information and the fire-fighting alarm information and transmits the explosion-proof alarm information and the fire-fighting alarm information to the energy management system, so that the energy management system can make an energy management strategy, then the energy management system determines the power supply state of equipment in the explosion-proof system and the fire-fighting system according to the energy management strategy, and the explosion-proof system and the fire-fighting system are controlled by the power supply end of the energy management system besides acting according to the self control strategy, so that the multi-dimensional safety protection of the container type power supply is realized, and the safety of the container type power supply is effectively improved. And, battery management system still transmits explosion-proof alarm information and fire control alarm information to upper processing system, is favorable to upper processing system to take notes the running state that increases each system along with operating duration to formulate the maintenance plan in view of the above, further improve the security of container formula power. Therefore, compared with the prior art, the embodiment of the utility model can improve the safety of the container type power supply.

Drawings

Fig. 1 is a top view of a container-type power supply according to an embodiment of the present invention;

fig. 2 is a left side view of a container type power supply according to an embodiment of the present invention;

FIG. 3 is a front view of a containerized power supply of the present invention;

FIG. 4 is a right side view of a container-type power supply according to an embodiment of the present invention;

fig. 5 is a schematic diagram illustrating a connection relationship between systems in a container-type power supply according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a battery rack according to an embodiment of the present invention;

FIG. 7 is a top view of another containerized power supply of the present invention;

FIG. 8 is a right side view of another containerized power supply of the present invention;

FIG. 9 is a front view of another containerized power supply of the present invention;

fig. 10 is a rear view of another containerized power supply of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

The embodiment of the utility model provides a container type power supply which can be a dual-purpose box type power supply for a shore ship and has high safety. Fig. 1 is a top view of a container-type power supply according to an embodiment of the present invention;

fig. 2 is a left side view of a container type power supply according to an embodiment of the present invention; FIG. 3 is a front view of a containerized power supply of the present invention; fig. 4 is a right side view of a container type power supply according to an embodiment of the present invention. Referring to fig. 1-4, the containerized power supply includes: a container body 10, an explosion-proof System, a fire-fighting System, a Battery Management System (BMS), and an Energy Management System (EMS). Wherein, the interior of the container body 10 is divided into a battery area 100 and a control area 200; the battery zone 100 is used for placing battery modules and signal acquisition devices required to be equipped in each system, the control zone 200 is used for placing control modules required to be equipped in each system, and each control module can be integrated in the control cabinet. In fig. 1, the battery area 100 and the control area 200 are exemplarily divided into two compartments by the fire door 37, and the battery area 100 and the control area 200 may be separated to protect the devices in the control area 200 when an accident such as a fire occurs in the battery area 100.

In the container type power supply, a battery rack 11 is arranged in a container body 10 for placing a battery module. The two battery racks 11 are separately arranged to facilitate ventilation and heat dissipation. Fig. 1 shows an exemplary outer contour illustration of the battery holder 11; in essence, the battery rack can be a cage-shaped multilayer structure, each layer of battery bearing layer can be divided into a plurality of bearing spaces by the support frame, and each bearing space is used for placing one battery module; one layer of battery modules may be collectively referred to as one battery cluster. One battery module may be formed by connecting a plurality of battery packs in series.

A detection end of the explosion-proof system collects combustible gas information; the detection end of the fire-fighting system collects fire-fighting information, the fire-fighting system is electrically connected with the explosion-proof system and is connected with combustible gas information output by the explosion-proof system; the fire fighting system is used for formulating a fire fighting strategy according to the combustible gas information and the fire fighting information; the battery management system is respectively and electrically connected with the explosion-proof system and the fire-fighting system, for example, the battery management system is respectively and electrically connected with an alarm signal output end of the explosion-proof system and an alarm signal output end of the fire-fighting system; the battery management system is used for transmitting the explosion-proof alarm information output by the explosion-proof system and the fire-fighting alarm information output by the fire-fighting system to the upper processing system; the energy management system is electrically connected with the battery management system, the explosion-proof system and the fire fighting system respectively; the energy management system is used for formulating an energy management strategy according to the explosion-proof alarm information and the fire-fighting alarm information and providing electric energy for other systems according to the energy management strategy.

Specifically, the detection end of the explosion-proof system may be formed by a plurality of probes of the combustible gas detection device 220, and the probes may be reasonably arranged in the battery region 100 according to the detection range of the probes and the size of the space inside the container body 10. The combustible gas detection device 220 is, for example, at least one of a hydrogen detector 22, a carbon monoxide detector 23, and a hydrocarbon detector. The combustible gas information may include information that the concentration of hydrogen, carbon monoxide, and hydrocarbons in the tank, etc. may indicate the state of combustible gas in the tank. The detection end of the fire fighting system can be composed of a plurality of probes of fire fighting information detectors, and the probes are reasonably arranged in the battery area 100 and the control area 200 according to the detection range of the probes and the space size in the container body 10. The fire information detector is, for example, at least one of a temperature detector 32 and a smoke detector 33. The fire fighting information may include information indicating a fire or indicating a fire, such as ambient temperature within the enclosure, equipment temperature, and smoke concentration within the enclosure. In this embodiment, the fire protection system and the explosion protection system are equivalent to a common combustible gas detection device 220; the combustible gas information is used for making an explosion-proof strategy in an explosion-proof system and also used for making an explosion-proof strategy in a fire-fighting system. Meanwhile, alarm devices are arranged in the explosion-proof system and the fire-fighting system and used for safety risk prompting. The explosion-proof alarm device and the fire-fighting alarm device can be both acousto-optic alarms; the alarm type can be distinguished by setting the installation positions of the two alarms to be different or setting the alarm signals (sound or light color, etc.) of the two alarms to be different. And the alarm signal output ends of the explosion-proof system and the fire-fighting system are connected with a battery management system, and the battery management system can upload various alarm information to an upper processing system (such as a mechanical Planning and Maintenance System (PMS) of a ship) so that the upper processing system can make a Maintenance plan for each device in the container type power supply according to the safety state in the container type power supply. The explosion-proof alarm information and the fire-fighting alarm information can also be displayed outside a box door or in a screen arranged in a cab. Illustratively, the explosion-proof alarm information may include: information such as the type and concentration of combustible gas; the fire alarm information may include: fire location and fire class.

The energy management system can be integrated in the domain control cabinet 41, and the energy management system is used as a power conversion device in the container type power supply and is electrically connected with each battery module; the power supply is electrically connected with each electric device in the container type power supply and supplies power to each electric device; meanwhile, the connector is electrically connected with the connector arranged outside the box body, the connector is electrically connected with a charging power supply or a load, and the electric energy flow direction in the container type power supply is controlled according to the type of the external equipment, for example, each battery module is charged through the charging power supply, or the power is supplied to the load through each battery module. The battery management system can be integrated in switch board 42 or domain switch board 41, and the battery management system transmits explosion-proof alarm information and fire control alarm information to the energy management system, can also transmit the state information of each battery module of gathering to the energy management system simultaneously. For example, the state information of the battery module may include: battery power and battery aging. The energy management system can make an energy management strategy according to the information; and controlling the working state of at least part of protection equipment in the explosion-proof system and the fire protection system according to the energy management strategy, for example, the energy management system can determine whether to provide electric energy for the protection equipment according to the energy management strategy so as to control whether the protection equipment is started.

It should be noted that fig. 1 only shows the positional relationship of each device in the container type power supply by way of example, and the electrical connection between each device is not fully drawn; the connecting cables between the devices can be laid inside the container body 10 or routed through the inside of the container body wall plate as required.

With continued reference to fig. 1 and 4, based on the above embodiments, the container type power supply optionally further comprises a quick connector type connector, which may specifically comprise a high voltage socket 411 and a communication socket 412. One end of the quick connector type connector is electrically connected to the energy management system (disposed in the domain control cabinet 41), and the other end of the quick connector type connector is used for electrically connecting to a load or a charging power source. When the container type power supply is installed by hoisting, due to the fact that a ship swings on water to a certain extent and the accuracy of hoisting equipment is poor, if an automatic plugging device is adopted, abnormal abrasion of a connector is easily caused, and therefore poor contact and cost waste are caused; and the battery system is used as a new energy source, and a communication cable is required to be used for communication so that the connection is successful. Therefore, based on the safe and reliable principle, the quick connector type connector is adopted for connection, and the stability of the power source is ensured in a manual confirmation mode.

With continued reference to fig. 1-4, based on the above embodiments, optionally, the container type power supply further includes: a fire damper 31; is arranged in a ventilation opening arranged on the side wall of the container body 10. The explosion-proof system includes: a combustible gas detection device 220, an explosion-proof alarm device (not shown in the figure) and an explosion-proof fan 21. The combustible gas detection device 220 is respectively connected with the explosion-proof alarm device and the explosion-proof fan 21; the explosion-proof fan 21 is arranged corresponding to the fireproof air brake 31 and is connected with the fireproof air brake 31; the explosion-proof alarm device is connected with the battery management system.

The combustible gas detection device 220 adopts two sets of mutually independent device backup devices, so as to ensure that the combustible gas can still be normally detected when one detection device fails. When the combustible gas detection device 220 detects that the gas in the box is abnormal, remote control CAN be carried out through the explosion-proof alarm device, an alarm is sent out in a cab of a ship, and explosion-proof alarm information is gathered through CAN communication of the battery management system and is transmitted to the PMS and the energy management system. The explosion-proof fan 21 can adopt a sparkless explosion-proof type marine fan, is linked with the fireproof air brake 31, and can discharge combustible gas generated under the condition of thermal runaway of the battery in time. Illustratively, the explosion-proof blower 21 is interlocked with the combustible gas detection device 220.

The explosion-proof strategy of the explosion-proof system is as follows: when it is detected that the concentration of combustible gas in the chamber is greater than its lower explosion limit (volume fraction, for example, 20%), the explosion-proof fan 21 is automatically activated to discharge the combustible gas out of the container body 10 in the direction indicated by the left arrow in fig. 1.

With continued reference to fig. 1-4, based on the above embodiments, optionally, the fire fighting system includes: two-way detection device, fire control device (not shown in the figure), fire alarm device, fire extinguishing device and forced control device. The detection device, the fire-fighting alarm device, the fire extinguishing device and the forced control device are all connected with the fire-fighting control device; the fire alarm device is electrically connected with the battery management system.

Wherein, each detection device can comprise a smoke detector 33 and a temperature detector 32; the fire suppression apparatus may include a fire cylinder 34; the fire control device, such as a remote release station, may be located nearby the fire cylinder 34; and manual buttons can be arranged on the fire control device and the fire extinguishing device so as to realize the manual control of the fire control system. The fire alarm device may include a fire alarm controller 35 and an alarm 37; fire alarm controller 35 is located nearby fire cylinder 34 and is electrically connected to a battery management system and alarm 37. The alarm 37 can give an audible and visual alarm and can be arranged outside the cabinet and above the door 12 as shown in fig. 4. The mandatory control means is provided for the consideration of the case where the staff cannot enter the control area 200. Therefore, the forced control device is arranged outside the container body 10 and is connected with the fire control device through a bus; alternatively, the forced control device is provided in an external control room (e.g., in a cab) and is communicatively connected to the fire fighting control device via a remote communication device.

The fire-fighting strategy of the fire-fighting system can be a three-level control strategy of automatic detection control, manual control and manual forced control. Two independent detection devices are arranged in each area in the container body 10. In the automatic detection control mode: when the signal collected by one detection device is abnormal, the fire alarm device gives an alarm to indicate the position where the fire happens and remind the staff of paying attention; when the signal collected by the other detection device is abnormal, the automatic fire extinguishing controller in the fire extinguishing control device starts to enter a time delay stage (adjustable within 0-30S), after the time delay, the fire control device sends a fire extinguishing instruction to a starting bottle controlling a corresponding fire area, the electric ignition starting device is turned on, then the fire extinguishing steel bottle 34 is turned on, and fire extinguishing operation is carried out on the fire area through the gas release nozzle 36. Meanwhile, the fire alarm controller 35 receives the feedback signal of the pressure signal device, and the control panel blow-off indicator lamp is on.

In the manual control mode, when the signal collected by the detection device is abnormal, the fire alarm controller 35 controls to send out an alarm signal, and the fire control device does not automatically output a fire extinguishing action signal. After the person on duty confirms the fire alarm, the start button of the fire control device or the start button of the fire extinguishing device is manually pressed to start the fire extinguishing operation.

In the manual forced control mode, the operator cannot enter the container body 10 due to serious fire or other reasons, and can start the fire extinguishing device to spray the fire extinguishing agent by pressing the emergency start button on the alarm control panel of the forced control device in the external control room or pressing the emergency start-stop button of the forced control device outside the container body (for example, arranged near the door 12).

The specific connection mode of the linkage safety protection structure formed by the explosion-proof system, the fire-fighting system, the battery management system and the energy management system can be seen in fig. 5, specifically, the smoke detector 22, the temperature detector 32 and the combustible gas detection device 220 are all connected with the fire-fighting control device 310 and the fire-fighting alarm device 320; the fire fighting control device 310 is also connected with a forced control device 340, a fire extinguishing device 330 and an energy management system 520; the fire alarm unit 320 is connected to a battery management system 510. The combustible gas detection device 220 is also connected with an explosion-proof alarm device 230 and an explosion-proof fan 21; the explosion-proof alarm device 230 is connected with the battery management system 510; the fireproof air brake 31, the explosion-proof fan 21 and the battery management system 510 are all connected with the energy management system 520.

The protection strategy of the linkage safety protection structure can be as follows by combining the strategies of the explosion-proof system and the fire-fighting system: when only the signal collected by the combustible gas detection device 220 is abnormal, the explosion-proof alarm device 230 gives an alarm, the combustible gas detection device 220 controls the explosion-proof fan 21 to be started, and the fireproof air brake 31 and the explosion-proof fan 21 are started in a linkage manner; meanwhile, the battery management system 510 transmits explosion-proof alarm information to the energy management system 520; the energy management system 520 continuously supplies power to the fireproof air brake 31 and the explosion-proof fan 21 to ensure that the fireproof air brake 31 and the explosion-proof fan are in the starting state. When at least one of the signals acquired by the smoke detector 33 and the temperature detector 32 is abnormal, starting a fire-fighting strategy of the fire-fighting system; during the fire suppression process, the fire control device 310 also transmits a gas release status signal to the energy management system 520; the energy management system 520 controls the fire damper 31 and the explosion-proof fan 21 to be closed according to the gas release state signal, and isolates the container type power supply from gas exchange with the outside so as to realize the integrity of fire separation.

To sum up, linkage safety protection structure can effectively improve the security of container formula power.

With continued reference to fig. 1, on the basis of the above embodiments, optionally, the explosion-proof system further includes: an explosion-proof lamp tube 24; the explosion proof light tube 24 is fixedly mounted to an inner wall, such as a top wall, of the container body 10. The explosion-proof lamp tube 24 can work under the conditions of 220V and 50Hz and can operate at the temperature of between 40 ℃ below zero and 50 ℃. On the basis of replacement, the service life of the lighting system is longer than 15 years, and a control switch for turning on all lighting equipment in the box body can be arranged near each box door.

On the basis of the foregoing embodiments, optionally, the explosion-proof system further includes: battery relief valve and box explosion-proof valve. The battery module can be designed by adopting high-standard IP67, and the battery pressure relief valve can be arranged on the shell of each battery pack in the battery module; the explosion-proof valve of the container body can be laid outside the container body. If the single battery in the battery module is decompressed in case of emergency, the gas generated after decompression can be led out through the explosion-proof valve of the box body, so that the risk of thermal runaway caused by the battery decompression valve is avoided; and the gas conducted to the inner space of the container body 10 is received by the combustible gas detecting device 220.

On the basis of the above embodiments, optionally, a safe escape and emergency system is further disposed in the container body 10, specifically, a clear safe escape passage mark, an audible and visual alarm device and a safety door may be disposed in the container body 10, and once a danger occurs, a person may rapidly escape from a scene according to the safe mark. Moreover, a sliding door operation mark can be arranged at the safety door; when the container type power supply is used, the safety management regulations of a fire fighting access need to be strictly followed, and the situation that the safety access is free of obstacles is guaranteed. In addition, in the escape process, personnel can manually control the fire-fighting alarm device to give an alarm; and manually cutting off the firing system that is running.

In addition to the foregoing embodiments, optionally, the container type power supply further includes: emergency lighting equipment and dual redundant emergency power supplies; emergency lighting equipment is arranged on each box door on the inner side of the container body 10; the emergency lighting equipment is electrically connected with each emergency power supply respectively. By the arrangement, people can be safely evacuated when danger occurs to the maximum extent. Once the system is powered off, the emergency lighting equipment in the container is immediately put into use, and the effective lighting time of a single emergency lighting lamp is not less than 30 minutes within 5 years. As shown in fig. 4, a night lighting device 71 with a protection grade not lower than IP55 can be arranged outside the container and above the door (daily operation and maintenance door) 12, the night lighting device 71 is independently powered by a single-group power distribution circuit breaker inside the container, and the circuit breaker can be manually closed. Illustratively, the emergency Power source may be an Uninterruptible Power Supply (UPS).

On the basis of the above embodiments, optionally, the battery rack includes at least two battery bearing layers, and the battery modules placed in one battery bearing layer constitute one battery cluster. The battery management system is a three-layer framework constructed by a battery monitoring module, a slave control module and a master control module. The communication connection between the battery management system and other systems is realized by the main control module.

The number of the battery monitoring modules is the same as that of the battery modules, and the battery monitoring modules are arranged in one-to-one correspondence with the battery modules. The number of the slave control modules is the same as that of the battery clusters, and the slave control modules are correspondingly connected with all the battery monitoring modules corresponding to the battery clusters through CAN interfaces; the master control module is connected with all slave control modules through CAN interfaces. The battery monitoring module may include a voltage monitoring device and a temperature detecting device for monitoring an operation state of the battery module. The battery management strategy can be dynamically formulated through real-time analysis of the battery data by the master control module and the slave control module, the battery is controlled to work under a proper working condition through means of thermal management, balance management, charging/discharging management, boundary management and the like, information exchange is carried out with a ship and a charger, and safety protection is respectively provided for overcharge, overdischarge and overcurrent of the battery.

The battery management system is managed in three levels, the system operation safety can be ensured, and the main functions of each level are as follows:

1) and the battery monitoring module is used for monitoring the temperature and the voltage of the single battery cell in the battery module and has an independent over-high temperature protection function and a balance control function.

2) The slave control module CAN detect the total voltage and the total current of the whole battery pack and receive the up-down instructions of the master control module through the CAN bus; controlling the balance of the relay switch and the voltage of the disc level unit; and performing thermal management on the battery cluster, and controlling the starting and stopping of a heating module of the battery.

3) The main control module can complete intelligent charging and discharging management of the battery clusters, find a proper battery cluster to be accessed and perform charging and discharging management, and realize a mutual redundancy backup function between the battery clusters; managing power distribution on the direct current side; receiving and controlling the using mode of the battery pack, such as starting, stopping signals, emergency stop control, alarm output and the like; carrying out comprehensive communication on systems except the battery pack, uniformly gathering and transmitting information of all battery clusters and receiving charge and discharge logic control of the whole ship system; and the system is communicated with a display screen of the cockpit to uniformly display the information of all the battery clusters.

On the basis of the foregoing embodiments, optionally, the energy management system includes: a bidirectional conversion device and an energy management device; the control end of the bidirectional conversion device is electrically connected with the energy management device, the first end of the bidirectional conversion device is electrically connected with the battery module, and the second end of the bidirectional conversion device is used for being electrically connected with a load or a charging power supply; the energy management device is also electrically connected with the battery module.

The bidirectional conversion device can comprise a bidirectional DC-DC converter and a bidirectional DC-AC converter based on a PWM control technology. Under the control of the energy management device, the battery module is in an isolated network mode to discharge according to the control of the bidirectional conversion device, and stable voltage and frequency support is provided for the micro-grid; or charging and storing energy in a grid-connected mode. The energy management device collects relevant information of the microgrid to carry out system calculation and charge and discharge logic selection, generates a plurality of paths of PWM signals, and controls the bidirectional DC-DC converter and the bidirectional DC-AC converter, so that the working mode and the state of the battery module are selectively switched. The bidirectional DC-DC converter is used as a voltage stabilizing interface circuit to adjust the energy storage and release of the battery module in the charging and discharging processes. The bidirectional DC-AC converter connects the energy storage system with a variable load through an LC filter circuit, and finally is connected with the main network through a static switch. Illustratively, a lead-acid lithium battery may be employed in the battery module.

In addition to the above embodiments, optionally, the container type power supply further includes: a thermal management system. The thermal management system may include an air-cooled device, such as the air conditioner 51 shown in FIG. 1. The air cooling device is electrically connected with the energy management system, and an air duct of the air cooling device is arranged at the top of the battery rack 11. Optionally, the thermal management system further comprises an ambient temperature measuring device 52 electrically connected to the air conditioner 51, so as to realize cooling and heating inside the container internal body 10 through the air conditioner 51. Illustratively, the air conditioner 51 automatically controls and coordinates the operation of the two refrigeration systems and the heating system according to the indoor and outdoor temperature and humidity, and the functions of natural ventilation cooling, compression type mechanical cooling, heating, dehumidification and the like are realized through the wind system, so as to ensure that the battery in the box works under the optimal working conditions of temperature and humidity. For example, when the explosion-proof system or the fire-fighting system starts to work, the energy management system can control the air cooling device to stop working through power failure.

With continuing reference to fig. 1, 3 and 4, based on the above embodiments, the control cabinet 42 is optionally equipped with a ventilation system, specifically: air is supplied through the box door 12, and air is discharged through a heat exchange ventilation opening 421 on the side wall of the box body, so that heat dissipation of the control cabinet is realized.

With continued reference to fig. 1, for example, cameras 61 may also be provided in various areas inside the container body to obtain the actual state inside the container body 10 in real time. With continued reference to fig. 4, a display screen 81 is also provided on the outside of the container for displaying operational information within the container-type power supply.

With continued reference to fig. 1-4, based on the above embodiments, optionally, the container body 10 is a rectangular parallelepiped, and takes a right-angle structure; the container body comprises a main beam frame, at least one door 12 and a plurality of wallboard plates; the box door 12 and the wall panel blocks are both mounted on the main beam frame. The girder frame adopts steel with enough strength, and finite element stress analysis can be carried out on the frame strength before installation, so that the girder frame meets the land working condition and the marine working condition, and the strength meets the use requirement in the design service life. The eight corners of the container body 10 are provided with protective corner fittings, and particularly, standard corner fittings of the container can be adopted. The panel blocks may be used to form the side walls and roof etc. of the container body 10. The wallboard panel comprising: the fireproof heat-insulating layer is arranged on the inner wall plate; the inner and outer wall panels may be connected by a framework. Simultaneously, before using, can do comprehensive analysis to the hoist and mount operating mode of container formula power, guarantee that it has the factor of safety of capacity, satisfy between the bank ship, hoist and mount operating mode between the ship. By the arrangement, the container type power supply has enough strength, and after lifting and transportation, damage or defects such as delamination, collapse, damage, inflexible rotation, permanent deformation and the like do not occur.

In addition to the above embodiments, optionally, for the structural safety of the battery module, the following may be considered: the creepage distance in the module shell is larger than the national standard requirement. The connection distance of the battery copper clad bars is larger than 35mm, so that short circuit and creepage are prevented. The distance between the fastener and the electric connecting material is larger than the national standard requirement. Considering the influence of high altitude, the module material is through reducing the appearance and calculating the back, guarantees by the support that the battery clearance is greater than safe distance, effectively avoids phenomenons such as short circuit, creepage.

Through research, the maximum position of the battery bulge is in the middle part of the battery. Therefore, referring to fig. 6, the present embodiment adds an anti-swelling structure to the battery holder. Specifically, two support beams 111 are added to the frame body corresponding to the carrying space of one battery module in the battery frame 11, and three support columns 112 are designed on each support beam 111. The support posts 112 may be slightly raised toward the battery module with a single-sided 2mm gap from the surface of the battery module, allowing for a normal amount of swelling of the battery. Once the battery module bulges, the surface of the battery module contacts the supporting column 112 when the gap is reserved, so that the battery can be prevented from continuously bulging.

In addition to the above safety protection measures and structures, the container type power supply can be designed as follows:

and (3) corrosion prevention design: the main beam frame is coated, so that the appearance, mechanical strength, corrosion degree and the like of the container type power supply all meet the requirements of the product life cycle for practical use.

Waterproof design: the protection grade of the container type power supply is not lower than IP55, the waterproof function ensures that the top of the box body does not accumulate water, seep water or leak water, the side surface of the box body does not rain, and the bottom of the box body does not seep water; dustproof (prevent wind husky) function guarantees to install the standard ventilation fire prevention filter screen that can conveniently change additional at the air intake of the air inlet of box power, air outlet and equipment, simultaneously, can effectively prevent the dust to get into box power when meeting with strong wind and raise husky weather inside, avoids causing safety problems such as electrical short circuit. The air tightness is designed according to the weather tight standard.

Fireproof design: a high-quality heat-insulating flame-retardant system is formed by adopting a fireproof insulating material approved by classification society, and can be used for various situations of use sites all day long. The heat-insulating flame-retardant material adopts rock wool boards and the like, can keep the temperature of the box-type power supply and has excellent flame-retardant performance; the bottom of the container body adopts A-60 fireproof grade, and other surfaces are paved by adopting a fireproof structure not lower than A-0; all doors and windows adopt the standard fire door of A-0 and above grade for ships.

Lightning protection design: set up ground flat steel or ground connection round steel and provide to container formula power and be no less than 2 opposite angle ground points, and the ground point is done rust-resistant treatment.

Shockproof design: the container type power supply and the internal equipment thereof are designed to meet the requirements in consideration of transportation and earthquake conditions, and faults such as deformation, abnormal function, no operation after vibration and the like cannot occur.

And (3) ultraviolet-proof design: the properties of the inner and outer materials of the box-type power supply are not degraded due to the irradiation of ultraviolet rays, and the heat of the ultraviolet rays is not absorbed; the types of all the materials meet the ROHS requirement, and the health of people is not harmed.

Electrical safety design: shielding and corresponding anti-interference measures are adopted to prevent electromagnetic interference and lightning interference so as to ensure the safe operation of each device and not reduce the system performance. The cable in the container type power supply is a marine flame-retardant cable, and is laid by referring to a CBT 3908 ship cable laying process and a process of a renewal version thereof. Safety equipment such as a smoke sensor, a temperature and humidity sensor and the like are arranged in the container type power supply and are provided with redundancy, once a fault is detected, a user is informed in a sound-light alarm and remote communication mode, meanwhile, an alarm signal is transmitted to the control equipment, and the lithium battery complete equipment which is running is cut off through instructions under the control equipment.

Design of a control switch and a socket: a standard five-hole power socket is arranged at a proper position in the box, and power supply is not allowed before the ground wire of the three-phase socket is connected (namely the ground wire is not connected, and a plug of the L, N wire cannot be inserted into the socket). The connection of the power socket corresponding to the distribution box carries out short circuit, overload and selective protection through an independent circuit breaker. The control switch and the socket are industrial products which meet the use working conditions of the ship.

In conclusion, the embodiment of the utility model considers the power safety of the ship in advance of the safety of the container type power supply, and can fully guarantee the safety of the whole life cycle of the container type power supply in an all-around way. In particular, the structural safety aspects: the embodiment realizes the complete A-level fireproof separation of the container body, has reliable structural strength and ensures the design service life; and meanwhile, the safety design of the battery module structure is carried out. Electrical safety aspects: the safe operation and use of the electrical system are realized. The operation safety aspect is as follows: the safe and efficient operation of the box-type power supply is realized through the design of the battery management system, the energy management system and the thermal management system. Fire safety: the structural integrity of a-level fire protection is achieved by the box body. Explosion-proof safety aspect: the safety of operation is ensured by adopting electrical equipment such as an explosion-proof lamp tube and the like; and an emergency exhaust system with an explosion-proof fan is adopted to ensure explosion-proof safety. The fire safety aspect: a fire alarm system is arranged, and a gas-based or water-based fixed fire extinguishing system is adopted; a watertight battery pack can be arranged for injecting water to extinguish fire, so that secondary afterburning is prevented. The safety aspect of personnel: a definite escape system is designed. And (3) environment-friendly aspect: the requirements of ROHS, UL, CE, IMO and other international regulations are met. And (3) connection reliability: the quick plugging and the reliable connection confirmed manually are realized, the electric accident caused by long-term abrasion of automatic plugging is avoided, and the power interruption of the whole ship system caused by abnormal communication is prevented.

The above embodiments exemplarily show that the battery area and the control area are divided into two compartments by the fire door, but not as a limitation to the present invention. In other embodiments, referring to fig. 7-10, the battery region 100 and the control region 200 illustratively form an integrally connected region.

The containerized power supply of fig. 7-10 may include the same systems and employ the same standards as the containerized power supply of fig. 1-4, but the equipment and equipment placement locations employed in each system may be different.

Referring to fig. 7-10, the fire suppression apparatus 330 may employ, for example, an FM200 total flooding system. The thermal management system may include a liquid cooling device. Specifically, the liquid cooling apparatus includes a liquid cooling device 52 and liquid cooling pipes; the liquid cooling device 52 is electrically connected to the energy management system, and the liquid cooling device 52 is connected to a liquid cooling duct that is disposed around the battery rack 11. The liquid cooling device 52 may be located in the control area 200.

The liquid cooling device can comprise two sets of refrigeration equipment, single-side independent control is adopted, and a controller in the refrigeration equipment can adaptively adjust the operation mode and the working condition through the cell temperature and the unit adaptive algorithm. The standby mode, the refrigeration mode (compression refrigeration, heat pipe refrigeration and cooling liquid refrigeration) and the heating mode can be switched in real time according to the temperature of the battery cell. The compressor, the water pump and the fan can adopt stepless speed regulation. The liquid cooling device can adopt an open communication protocol, relevant data are reported to the battery management system in real time, and meanwhile, the relevant data can be provided to a remote monitoring platform to detect the running state in real time and feed back the fault at the first time. And, can carry out the design of anti-condensation water to liquid cooling device: the pipeline is completely wrapped with heat insulation cotton, and a ceramic heat insulation belt is wound outside the pipeline to further isolate air; the branch pipe and the water inlet and outlet of the battery pack are designed to have downward inclination angles, and if condensate water is generated, the condensate water can flow downwards along the pipeline and cannot affect the battery pack. For energy conservation reasons, a compression refrigeration mode may be employed at ambient temperatures >15 ℃; when the ambient temperature is between 5 and 15 ℃, the heat of the battery can be taken away by using the latent heat of phase change of a refrigerant without starting a compressor; when the ambient temperature is less than or equal to 5 ℃, a direct liquid radiator can be adopted for refrigeration, and the cooling liquid is directly cooled by the ambient temperature through the radiator.

In practical application, the heat management system can be provided with at least one of an air cooling device and a liquid cooling device according to requirements. The environment temperature measuring device 52 can also be connected with an independent alarm device, and can alarm when the environment temperature is higher than 50 ℃ and lower than minus 20 ℃, so that over-high temperature or over-low temperature prompt is realized.

The emergency power supply 72 is shown in fig. 7 and 10 by way of example, and the emergency power supply 72 may be located in the control area 200 and dissipate heat through an emergency power vent 721. In fig. 7 and 9, a fire damper 38 (which may be an electric fire damper) is shown as an example in addition to the fire damper 31 to assist in fire and fire safety. In fig. 8, a nameplate 82 is shown by way of example, arranged outside the container body.

On the basis of the above embodiments, the container type power supply may be a battery-replaceable power supply. As the battery capacity required by the marine battery as a power supply is higher, the charging time is long, and the ship needs to occupy a wharf for a long time in the charging process, the shipping efficiency is influenced, and the working efficiency of a shore power charging station can be reduced. The adoption trades the electric power formula power and can effectively solve above-mentioned problem.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the particular embodiments described herein, and that various obvious changes, rearrangements and substitutions will now be apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A containerized power supply comprising:

2. The containerized power supply of claim 1, wherein said container body is a rectangular parallelepiped; the container body comprises a main beam frame, at least one container door and a plurality of wallboard plates; the box door and the wallboard plate block are both arranged on the main beam frame; eight corners of the container body are provided with protective corner fittings;

3. The containerized power supply of claim 1, further comprising: a fireproof air brake; the side wall of the container body is provided with a vent, and the fireproof air brake is arranged in the vent;

the combustible gas detection device is respectively connected with the explosion-proof alarm device and the explosion-proof fan; the anti-explosion fan is arranged corresponding to the fireproof air brake and is connected with the fireproof air brake; the explosion-proof alarm device is connected with the battery management system.

4. The containerized power supply of claim 3, wherein said explosion suppression system further comprises:

5. The containerized power supply of claim 1, wherein said fire protection system comprises: two paths of detection devices, a fire control device, a fire alarm device, a fire extinguishing device and a forced control device;

the detection device, the fire-fighting alarm device, the fire extinguishing device and the forced control device are all connected with the fire-fighting control device; the fire alarm device is electrically connected with the battery management system;

6. The containerized power supply of claim 1 wherein said battery support includes at least two battery support layers, said battery modules disposed in one of said battery support layers forming a battery cluster;

7. The containerized power supply of claim 1, wherein said energy management system comprises: a bidirectional conversion device and an energy management device;

8. The containerized power supply of claim 1 further comprising: a thermal management system;

9. The containerized power supply of claim 1, wherein said container body includes at least one door;

10. The containerized power supply of claim 1, further comprising a quick connector type connector; one end of the quick-plug connector type connector is electrically connected with the energy management system, and the other end of the quick-plug connector type connector is used for being electrically connected with a load or a charging power supply.