CN115212502A

CN115212502A - Throwing type fire-fighting emergency reaction system and method

Info

Publication number: CN115212502A
Application number: CN202210691213.8A
Authority: CN
Inventors: 李良胜; 史志勇; 徐桂龙
Original assignee: Shanghai Enneagon Energy Technology Co ltd
Current assignee: Shanghai Enneagon Energy Technology Co ltd
Priority date: 2022-06-18
Filing date: 2022-06-18
Publication date: 2022-10-21
Anticipated expiration: 2042-06-18
Also published as: CN115212502B

Abstract

The invention discloses a throwing type fire-fighting emergency reaction system and an emergency reaction method, which belong to the technical field of power changing stations and are used for throwing a fault battery in the power changing station to the outside of the power changing station to carry out fire-fighting operation; the method is characterized in that: an emergency outlet is formed in the side wall of the power exchanging station, and a fire pit is arranged outside the emergency outlet; the height of the emergency outlet is greater than that of the fire pit; the emergency exit is provided with a slide assembly for guiding the battery pack into the fire pit, and a throwing mechanism for grabbing the battery pack and transferring the battery pack to the emergency exit is arranged in the battery changing station. By adopting the technical scheme, when fire hazard is found, the target battery pack can be timely and quickly transported out of the power conversion station for fire fighting treatment, namely, the battery pack based on the fire hazard is physically isolated from the power conversion station, so that negative effects on the environment in the power conversion station and other battery packs are avoided.

Description

Throwing type fire-fighting emergency reaction system and method

Technical Field

The invention belongs to the technical field of power stations, and particularly relates to a throwing type fire-fighting emergency reaction system and an emergency reaction method.

Background

In recent years, along with the increasing awareness of environmental protection, the popularity of electric vehicles is higher and higher, and as is well known, compared with the traditional fuel oil vehicle, the charging speed of the electric vehicle is slower, so that the charging and replacing power station is started. The power conversion station and the energy storage station are one of the most important means for wide application of new energy. However, the current battery technology cannot avoid the phenomenon of thermal runaway of the battery during the use process. Taking lithium iron phosphate as an example, thermal runaway to combustion generally occurs, and the time is less than 10min. The only effective fire-fighting measure for the battery with thermal runaway is to rapidly and physically cool the battery through a large amount of spray water. And be applied to trade the electric battery of commercial car, even be applied to battery package, the energy storage battery of passenger car etc. because the protection requirement of use scene, the battery is all protected by parcel such as metal panel beating, automobile body component, metal frame, when thermal runaway appears, the water that the fire control sprayed can't directly effectively cool down the battery.

At present, in order to reduce the potential safety hazard of fire, engineers adopt the technical means of arranging a fire extinguishing area and fire fighting equipment in a charging room.

The conventional technology has the following defects in practice:

1. if fire spray water is simply used, the physical cooling effect is very limited, and the surrounding normal batteries, electrical facilities and even the whole power station can be affected. Measures such as fire-fighting spraying, alarm prevention and the like are added blindly, so that the cost is increased sharply, and the problem is not solved substantially;

2. water spray in the battery replacement station can increase the humidity in the battery replacement station, short-circuit accidents easily occur, and the potential safety hazards of the battery pack and the battery replacement station are further increased.

Disclosure of Invention

Aiming at the technical defects, the invention provides a throwing type fire-fighting emergency reaction system and an emergency reaction method, when fire hazard is found, a target battery pack can be timely and quickly transported to the outside of a power conversion station for fire-fighting treatment, the battery pack with the fire hazard is quickly separated from the power conversion station in a physical isolation mode, and negative effects on the environment in the power conversion station and other battery packs are avoided.

In order to achieve the technical purpose, the invention is realized by the following technical scheme:

the first purpose of the invention is to provide a throwing type fire-fighting emergency reaction system, which is used for throwing a fault battery in a power station to the outside of the power station for fire-fighting operation; an emergency outlet is formed in the side wall of the power exchanging station, and a fire pit is arranged outside the emergency outlet; the height of the emergency outlet is greater than that of the fire pit; the emergency exit is provided with a slide assembly for guiding the battery pack into the fire pit, and a throwing mechanism for grabbing the battery pack and transferring the battery pack to the emergency exit is arranged in the battery changing station.

Preferably, the slide assembly comprises a door shaft horizontally arranged at the bottom of the emergency exit, and an outward opening door arranged on the door shaft; the height of the outward opening door is larger than or equal to the shortest distance from the door shaft to the fire pit. For a better gliding effect, the slope of the slide surface is more than 30 degrees, preferably 45 degrees, when the outward opening door is open. The surface of the outward opening door can be a smooth plane, and an unpowered roller can also be adopted.

Preferably, a hoisting winch and a pulley block are installed in the battery replacement station, one end of the steel wire rope is connected with the upper half part of the inner side wall of the outward opening door, and the other end of the steel wire rope is connected with a power output shaft of the hoisting winch through the pulley block.

Preferably, in order to realize intelligent control of the hoisting winch, a door opening in-place switch is installed at the bottom of a door frame of the outward opening door, and a door opening trigger block for triggering the door opening in-place switch to act is installed at the bottom of the inner side wall of the outward opening door; a door closing in-place switch is arranged at the top of the door frame of the outward opening door; the top of the inner side wall of the outward opening door is provided with a door closing trigger block for triggering the door opening in-place closing action; the door opening in-place switch is connected with a controller trigger terminal of the hoisting winch; the door closing in-place switch is connected with a controller trigger terminal of the hoisting winch.

Preferably, since the outward opening door is closed for a long time, in order to realize quick opening, an outward pushing force needs to be provided when the outward opening door is opened, and a spring door opening assisting assembly is installed at the top of a door frame of the outward opening door.

Preferably, in order to be placed on the supporting plate to deviate, a plurality of parallel rollers are arranged on the inner side wall of the outward opening door, the shaft of each roller is perpendicular to the sliding direction of the battery pack, and guide strips are installed on two sides of each roller.

Preferably, a sensor for detecting a position of the battery pack is mounted to an inner side of the guide bar.

Preferably, the slinger mechanism comprises:

one end of the emergency switching station is positioned at the emergency outlet, and the other end of the emergency switching station is positioned at a roller way in the battery replacement station;

a robot that grasps the battery pack and places the battery pack on the pallet;

grabbing a supporting plate, and placing the supporting plate on a lifting appliance on a roller way;

a travelling crane for driving the lifting appliance to move;

and the control terminal is used for controlling the working states of the roller way, the robot and the lifting appliance.

Preferably, the roller way comprises a bracket and a power roller arranged on the bracket, and a plurality of groups of guide rollers and guide blocks are arranged on the bracket at two sides of the power roller.

Preferably, each set of guide rollers comprises two horizontally disposed rollers.

Preferably, a second sensor for detecting whether the pallet is in place is mounted on the bracket.

Preferably, the support is provided with a plurality of magnets for limiting the supporting plate.

Preferably, the lower surface of the supporting plate is provided with an elastic buffer layer; the supporting plate is provided with a first sensor for detecting whether the battery is in place.

The second purpose of the invention is to provide a throwing type fire-fighting emergency reaction method, which is based on the throwing type fire-fighting emergency reaction system and comprises the following steps:

s1, in an initial state, closing an emergency outlet, and establishing data interaction between a throwing mechanism and a battery management system;

s2, when the battery management system detects that the target battery pack has fire hazard; executing S3, otherwise, keeping the existing working state;

s3, opening an emergency outlet by a throwing mechanism, overlapping the slide assembly between the emergency outlet and the fire pit, simultaneously grabbing the target battery pack, and transferring the target battery pack to the slide assembly;

s4, the target battery pack enters a fire pit along the slide assembly;

and S5, closing the emergency outlet and simultaneously carrying out fire-fighting operation in the fire pit.

Preferably, the closing process of the emergency exit is:

the hoisting winch drives the free end of the outward opening door to rotate and rise by taking the door shaft as a fulcrum through the steel wire rope until the outward opening door is closed with the emergency outlet, the door closing trigger block is started, and then the hoisting winch is triggered to stop working.

Preferably, the opening process of the emergency exit is as follows:

the spring power-assisted assembly that opens the door drives the outward motion of opening the door, and the hoist and mount hoist engine passes through the free end that wire rope drove the outward opening door and uses the door-hinge to rotate as the fulcrum, and until the overlap joint of outward opening door and fire pit, the trigger block that opens the door starts, and then triggers hoist and mount hoist engine stop work.

Preferably, snatch the target battery group, transfer the target battery group to the slide subassembly, specifically be:

the method comprises the following steps that firstly, a robot grabs a target battery pack; meanwhile, the lifting appliance grabs the supporting plate, places the supporting plate on the roller way, and detects whether the supporting plate is in place through a second sensor;

step two, after the supporting plate is in place, the robot places the target battery pack on the supporting plate;

step three, detecting whether the target battery pack is in place or not through a first sensor;

step four, after the battery is in place, the roller way is started, and the supporting plate loaded with the target battery pack is transported to the top of the outward opening door;

step five, under the action of inertia, the supporting plate slides down to the outward opening door and slides down to the fire pit along the outward opening door;

and step six, closing the outward opening door, and simultaneously performing fire fighting operation in the fire pit.

The invention has the advantages and the technical effects that:

by adopting the technical scheme, when fire hazard is found, the battery pack can be timely and quickly transferred to the outside of the power exchange station for fire fighting treatment, so that negative effects on the environment in the power exchange station and other battery packs are avoided; the method comprises the following specific steps:

the traditional technology adopts the spraying fire control in the power exchanging station, and in the spraying process, a large amount of heat energy and water vapor can be generated, so that the temperature and the humidity in the power exchanging station are greatly increased, and the failure rate and the risk coefficient of a gas battery pack or electrical equipment are greatly increased in a high-temperature and high-humidity environment; the application can rapidly transport the fault battery to the fire pit outside the power conversion station for fire fighting operation, and can well avoid that heat energy and water vapor in the fire fighting process enter the power conversion station.

This application is through putting out a fire the operation at outdoor sand pit, and the operation space is big, need not consider secondary fire hidden danger on every side simultaneously for the work convenience more of putting out a fire in the fire control.

Drawings

FIG. 1 is a block diagram of a preferred embodiment of the present invention;

FIG. 2 is an internal front view of the preferred embodiment of the present invention;

FIG. 3 isbase:Sub>A sectional view A-A of FIG. 2;

FIG. 4 is a left side view of the preferred embodiment of the present invention;

FIG. 5 is a partial, pictorial illustration of a preferred embodiment of the present invention;

FIG. 6 is a front view of a pallet in a preferred embodiment of the present invention;

FIG. 7 is a top view of a pallet placed on a roller bed in a preferred embodiment of the present invention;

FIG. 8 is a left side view of the slide assembly in the preferred embodiment of the present invention;

figure 9 is a top view of a slide assembly in a preferred embodiment of the invention.

In the figure: 1. driving a vehicle; 2. a spreader; 3. a smoke alarm; 4. a support plate; 5. an outward opening door; 5-1; a drum; 5-2, a third sensor; 5-3, a fourth sensor; 5-4, a guide strip; 6. hoisting a winch; 7. a roller way; 8. a door opening in-place switch; 9. a lower fixed pulley; 10. a threshold seal ring; 11. a wire rope; 12. an upper fixed pulley; 13. the spring door opening assisting component; 14. a switch for closing the door in place; 15. a diverting pulley; 16. a sand pit; 17. a guide roller; 18. a power roller; 19; a first sensor; 20. a second sensor; 21. a magnet; 22. and a guide block.

Detailed Description

In order to make the above objects, control systems and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 9, in a throwing type fire-fighting emergency response system, when a battery in a replacement station fails and has a fire hazard, the failed battery in the replacement station is thrown into a fire pit outside the replacement station in time to perform fire-fighting operation; the specific technical scheme is as follows: an emergency outlet is formed in the side wall of the power exchanging station, and a fire pit is arranged outside the emergency outlet (namely, an empty ground outside the power exchanging station); the emergency exit is generally rectangular; the height of the emergency outlet is greater than that of the fire pit; the emergency exit is provided with a slide assembly guiding the battery pack into the fire pit, and a throwing mechanism grabbing the battery pack and transferring the battery pack to the emergency exit is arranged in the battery changing station. The fire pit may be a water pit or a sand pit 16;

the working principle is as follows: the state of each battery pack is monitored in real time or at regular time by using the BMS of the battery changing station, when the BMS of the battery changing station finds that fire hazard exists in a certain battery pack in the battery changing station, the throwing mechanism is started, an emergency outlet is opened, the battery pack is grabbed by using the throwing mechanism and is transferred to the emergency outlet, the battery pack is thrown onto the slide assembly under the action of inertia force, and the battery pack slides down into a fire pit under the action of gravity; then, the fire fighting operation can be carried out in the fire pit; according to the technical scheme, the battery pack can be timely and quickly transferred to the outside of the power conversion station for processing, and negative influences on the environment in the power conversion station and other battery packs are avoided.

In order to save space, the slide assembly is designed to be of a closable structure:

the slide assembly comprises a door shaft horizontally arranged at the bottom of the emergency exit and an outward opening door 5 arranged on the door shaft; the height of the outward opening door is larger than or equal to the shortest distance from the door shaft to the fire pit. When fire hazard does not occur, the outward opening door is in a closed state, namely the outward opening door is closed with the emergency outlet, so that sealing in the power conversion station is realized, and external humid air or dust is prevented from entering the power conversion station; in order to further realize the sealing effect, the side wall of the outward opening door is provided with a threshold sealing ring 10; for a better and faster gliding effect, the slope of the slide surface is more than 30 degrees, preferably 45 degrees, when the outward opening door is open. The surface of the outward opening door can be a smooth plane, and an unpowered roller 5-1 can also be adopted.

In order to realize the automatic opening and closing of the outward opening door, a hoisting winch 6 and a pulley block are installed in the battery changing station, one end of a steel wire rope 11 is connected with the upper half part of the inner side wall of the outward opening door, and the other end of the steel wire rope 11 is connected with a power output shaft of the hoisting winch through the pulley block. The outward opening door is opened and closed by forward rotation and reverse rotation of the hoisting winch; in order to realize stable opening and closing, two groups of hoisting winches, pulley blocks and steel wire ropes are respectively used for simultaneously operating two sides of an outward opening door; each pulley block specifically includes: lower crown block 9, upper crown block 12, diverting pulley 15 and guide rollers 17.

In order to realize intelligent control of the hoisting winch, a door opening in-place switch 8 is installed at the bottom of a door frame of the outward opening door, and a door opening trigger block for triggering the door opening in-place switch to act is installed at the bottom of the inner side wall of the outward opening door; when the door opening trigger block is contacted with the door opening in-place switch 8, the outward opening door is completely opened, and the door opening in-place switch 8 triggers the hoisting winch to stop working; a door closing in-place switch 14 is arranged at the top of the door frame of the outward opening door; the top of the inner side wall of the outward opening door is provided with a door closing trigger block for triggering the door opening in-place closing action; the door opening in-place switch is connected with a controller trigger terminal of the hoisting winch; the door closing in-place switch is connected with a controller trigger terminal of the hoisting winch. When the door closing trigger block is contacted with the door closing in-place switch, the outward opening door is completely closed, and the door closing in-place switch triggers the hoisting winch to stop working;

because the outward opening door is in a closed state for a long time, in order to realize quick opening, an outward pushing force needs to be provided when the outward opening door is opened, a spring door opening assisting assembly 13 is installed at the top of a door frame of the outward opening door, one or more spring door opening assisting assemblies 13 can be arranged, if one spring door opening assisting assembly is arranged, the spring door opening assisting assembly is arranged at the center of the top of the door frame, and if the spring door opening assisting assembly is arranged, the spring door opening assisting assembly is uniformly distributed.

The inside wall of the outward opening door is provided with a plurality of parallel rollers, the shaft of each roller is perpendicular to the sliding direction of the battery pack, guide strips 5-4 are arranged on two sides of each roller in order to prevent the support plate from deviating, and the support plate 4 slides down between the two guide strips.

In order to realize the real-time detection of the position of the battery pack, a sensor for detecting the position of the battery pack is arranged on the inner side of the guide strip.

The throwing mechanism comprises:

one end of the emergency switching station is positioned at the emergency outlet, and the other end of the emergency switching station is positioned at a roller way 7 in the power switching station; the roller way is formed by splicing a plurality of sections of roller ways, and can be a linear roller way or a bending roller way as required; each section of roller way is provided with an independent driving motor, in order to realize better throwing effect, the speed of the roller way at the tail end (the roller way butted with the outward opening door) is the maximum, namely when the battery pack reaches the outward opening door, the speed is the maximum, so that the supporting plate and the battery pack smoothly enter a landslide formed by the outward opening door under the action of inertia;

a robot that grasps the battery pack and places the battery pack on the pallet;

grabbing a supporting plate, and placing the supporting plate on a lifting appliance 2 on a roller way; the battery pack with the fire hidden trouble is lightly taken and placed as much as possible, so that unnecessary friction and collision are avoided in the transportation process; the battery pack is placed on the supporting plate for transportation;

a traveling crane 1 driving the lifting appliance to move;

the control terminal controls the working states of the roller way, the robot and the lifting appliance, and data interaction is established between the control terminal and a battery management system BMS; the battery management system BMS acquires the state of the battery pack in real time, and when the battery pack with potential safety hazards appears, the battery management system BMS timely informs the control terminal, and then the control terminal timely starts the roller way, the robot and the lifting appliance to start working.

The roller table comprises a support and a power roller 18 arranged on the support, and in order to prevent the supporting plate and the battery pack from deviating, a plurality of groups of guide rollers and guide blocks 22 are arranged on the support at two sides of the power roller.

Each group of guide rollers comprises two rollers which are horizontally arranged.

A second sensor 20 for detecting whether the pallet is in place is mounted on the bracket. Generally, the roller way is static, when the supporting plate is prevented on the roller way, the second sensor can timely acquire the information of the supporting plate and further send a signal to the control terminal, and after the control terminal receives the signal, the robot can be controlled to prevent the battery pack from being placed on the supporting plate, otherwise, the robot cannot prevent the battery pack from being placed on the supporting plate;

in order to fix the supporting plate, a plurality of magnets 21 for limiting the supporting plate are arranged on the bracket, and the supporting plate is made of a magnetic material; when the supporting plate is arranged on the roller way, the supporting plate and the roller way are connected through the magnet, but the magnetic adsorption force is smaller than the friction force between the supporting plate and the roller way during movement; therefore, in order to control the magnetic force, it is preferable that an electromagnet control the magnitude of the attraction force by the magnitude of the current.

In order to protect the supporting plate and the roller way, the lower surface of the supporting plate is provided with an elastic buffer layer; a first sensor 19 for detecting whether the battery is in place is arranged on the supporting plate; the first sensor can acquire information of the battery pack in time and then send a signal to the control terminal, and the control terminal can control the roller way to start after receiving the signal, otherwise, the roller way is not started.

A plurality of smoke alarms 3 are installed in the power exchanging station.

An automatic fire extinguishing device can also be arranged at the fire pit, and a third sensor 5-2 and a fourth sensor 5-3 are arranged on the outward opening door, wherein the third sensor 5-2 is positioned at the free end of the outward opening door, and the fourth sensor 5-3 is positioned in the middle of the outward opening door; the two sensors are both sensors, and when the fourth sensor 5-3 detects that the battery pack passes through, a starting preparation program of the automatic fire extinguishing device can be triggered in advance; when the third sensor 5-2 detects that the battery pack passes through, the fire extinguishing program of the automatic fire extinguishing device is immediately triggered; this can greatly improve efficiency; meanwhile, if the battery pack only passes through the fourth sensor 5-3 and does not pass through the third sensor 5-2 within a certain time, the battery pack may be clamped on the outward opening door and stop sliding down, so that a worker is reminded to timely handle the battery pack.

A throwing type fire-fighting emergency reaction method is based on the throwing type fire-fighting emergency reaction system and comprises the following steps:

s2, when the battery management system detects that the fire hazard occurs to the target battery pack; executing S3, otherwise, keeping the existing working state;

s3, opening an emergency outlet by a throwing mechanism, overlapping a slide assembly between the emergency outlet and the fire pit, simultaneously grabbing a target battery pack, and transferring the target battery pack to the slide assembly;

s4, the target battery pack enters a fire pit along the slide assembly;

Preferably, the closing process of the emergency exit is as follows:

Preferably, the opening process of the emergency exit is as follows:

Preferably, snatch the target group battery, transfer the target group battery to the slide subassembly, specifically:

detecting whether the target battery pack is in place or not through a first sensor;

fifthly, under the action of inertia, the supporting plate slides onto the outward opening door and slides to the fire pit along the outward opening door;

On the basis of the above-described preferred embodiment,

the control terminal can be a computer, a PLC or a single chip microcomputer;

according to the specific practical situation, the control terminal can perform data interaction with the BMS through the data line or through the wireless communication module. BMS can carry out real time monitoring to the state of every group battery in trading the power station, when discovering the conflagration hidden danger, in time notifies the controller. The state of each battery pack is mastered by a worker through the controller, and when fire hazard occurs, the throwing mechanism is started in time to open the fire door;

the track of driving 1 installs in the top that trades in the power station, the motion of the driving of being convenient for, and the track of driving 1 both includes the horizontal track of horizontal plane, also includes vertical track, the track of driving 1 is located the top of roll table 7, and both are parallel to each other.

In general, when fire hazard is not found, the fire door is in a closed state, namely the emergency exit is closed, when fire fighting is needed, the lower edge of the fire door is used as a rotating shaft to rotate, and the upper edge of the fire door is opened outwards until the fire door contacts a sand pit; the lower edge of the fire door is hinged with an emergency outlet, a steering pulley is arranged at the upper end of the emergency outlet, one end of a steel wire rope is connected with the fire door, and the other end of the steel wire rope is connected with a hoisting winch 6 after passing through the steering pulley.

The sand pit position can adopt automatic fire control, also can adopt manual fire control: and a manual spraying fire-fighting device and an automatic spraying fire-fighting device are arranged at the sand pit.

And the controller and the spraying fire-fighting equipment perform data interaction through a data line or a wireless communication module.

In order to facilitate the quick opening of the fire door, the form of the spring is adopted to assist the opening:

the lower edge of the fire door is connected with the emergency outlet through a torsion spring.

Or the lower edge of the fire door is connected with an emergency outlet through a rotating shaft, a spring is arranged between the lower edge of the fire door and the power exchanging station, one end of the spring is connected with the power exchanging station, and the other end of the spring is suspended.

1) Through BMS, station control system linkage, can real time monitoring each electric core in the group battery, the temperature information of cable, connector, in case discover thermal runaway phenomenon, trigger full-automatic fire control reaction immediately.

2) Through practical tests, the power switching station opens a power switching channel special for fire protection. Triggered to be ready for about 40s. Meanwhile, the full-automatic robot can grab the thermal runaway battery according to the station control positioning information and place the battery on a fire-fighting special channel (namely a supporting plate on the roller way 7).

3) The power mechanism (throwing mechanism) of the fire-fighting special channel can be connected to send the battery out of the power station, and the battery is in soft landing at a special spraying position (sand pit), wherein the distance from the sand pit to the power station is about 5m. The automatic fire sprinkler is started instantly. The process time is about 30s.

4) Spraying automatically or manually is finished for about 30 minutes.

Advantages of the "throw-away fire emergency response system":

1) And (4) carrying out spraying treatment on the thermal runaway battery outside the battery replacement station. The power exchange station and other facilities inside the power exchange station can not be affected. The loss can be controlled to a minimum.

2) The fire-fighting is full-automatic and does not involve human beings. Avoiding misjudgment, avoiding possible personal injury and the like.

3) The treatment action can be completed within about 70s, and enough margin is left for subsequent spraying and cooling.

4) The battery is in soft landing, and thermal runaway is avoided from being aggravated by mechanical impact. The possibility of repair is reserved for intact parts in the battery, further reducing customer losses.

5) The robot of the power station is utilized, a mature fire fighting access power system is adopted, the cost is controllable, and the system is reliable.

Introduction of a throwing type fire-fighting emergency reaction system:

1) The fire-fighting system comprises a fire-fighting monitoring system (BMS and various sensors);

2) A monitoring function:

a) Whether a fire disaster happens in a monitoring room and a battery compartment of the power conversion and replacement integrated equipment can be monitored;

b) When a fire disaster occurs, immediately reporting the position information of the fire chamber to an upper computer;

c) When a fire disaster occurs in the battery compartment, effective fire extinguishing measures should be started.

3) And (4) an alarm function: when the fire detector detects that a fire condition exists in the electricity-exchanging integrated equipment, the fire-fighting system can carry out effective sound-light alarm to remind the station-end workers;

4) Manual function: the fire-fighting system can be started manually to extinguish fire;

5) And (3) communication function: the fire fighting system can report monitoring information to the upper computer in real time through a communication network;

6) The explosion-proof function: the battery replacement and replacement integrated equipment is provided with battery explosion-proof equipment, and when potential safety hazards exist in a battery pack, a fault battery pack is immediately and automatically isolated, and fire extinguishing treatment is performed.

Battery information acquisition and early warning judgment:

(1) the battery management system BMS obtains the real-time temperature of the battery through the rack-mounted machine.

(2) The battery in the charging position is overheated, and the battery is overheated to have three early warning systems: 1. after the battery is locally overheated, the BMS can communicate with the loader and transmit overheating early warning information to a station control system (controller) to alarm. 2. The loader can detect the temperature of the charging wire bundle in real time, if the temperature is too high, the loader can give an alarm and stop charging, and the alarm information can be transmitted to the station control system in real time. 3. If the battery overheats and generates smoke, a smoke sensation in the station triggers an alarm.

(3) After receiving the warning information, the attendant quickly checks the state of the battery box and whether a problem battery can be placed in the current battery replacement lane;

(4) the station control system firstly judges that no vehicle is needed on a traffic lane, if a vehicle is replaced, the current battery replacement is firstly completed, and a driver is informed to drive away the vehicle quickly.

Fire-fighting treatment process:

1) When the thermal runaway of the battery is found, an alarm is triggered, and a button is manually started;

2) Starting a hoisting winch, opening the fire door, and placing the fire door in place;

3) The PLC controls the travelling crane and the lifting appliance to take out the warning battery;

4) The traveling crane and the lifting appliance move the thermal runaway battery to a fire-fighting roller way;

5) The crane and the lifting appliance place the thermal runaway battery on the battery supporting plate;

6) The fire-fighting roller way runs and conveys the alarm battery to a fire-fighting door of the battery replacement station;

7) The thermal runaway battery slides into the sand pit through the slope of the fire door;

8) The thermal runaway battery is sprayed automatically or manually.

When the fire door is opened, the door pushing mechanism (spring or torsion spring) needs the elasticity of the mechanism to push the fire door out of the station.

The steel wire pulley plays a role in guiding and supporting a steel wire for hoisting the winch.

The application is safer and more effective in treating fire control outside the battery replacement station. Various fire-fighting measures such as spraying can be implemented outside the power station, and the situations such as circuit short circuit and the like caused by water in the power station can be avoided.

The emergency response speed is high. After the battery is locally overheated, the BMS can communicate with the loading machine, overheating early warning information is transmitted to a station control system, an alarm is given, the PLC controls the robot and the lifting appliance to take out the alarming battery, the alarming battery is lifted to a roller way, and the roller way conveys the battery to the outside of a station.

This application can reduce economic loss, only need to transport the battery that has the potential safety hazard and trade the power station outside, do not influence other battery normal use that do not have a problem, can not cause big harm to trading other parts in power station yet.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A throwing type fire-fighting emergency reaction system; the system is used for throwing the fault battery in the power changing station out of the power changing station to carry out fire fighting operation; the method is characterized in that: an emergency outlet is formed in the side wall of the battery replacement station, and a fire pit is arranged outside the emergency outlet; the height of the emergency outlet is greater than that of the fire pit; the emergency exit is provided with a slide assembly for guiding the battery pack into the fire pit, and a throwing mechanism for grabbing the battery pack and transferring the battery pack to the emergency exit is arranged in the battery changing station.

2. The fire emergency reaction system of claim 1, wherein the slide assembly comprises a door shaft horizontally mounted at the bottom of the emergency exit, an outward opening door mounted on the door shaft; the height of the outward opening door is larger than or equal to the shortest distance from the door shaft to the fire pit.

3. The throwing fire-fighting emergency response system according to claim 2, wherein a hoisting winch and a pulley block are installed in the power conversion station, one end of the steel wire rope is connected with the upper half part of the inner side wall of the outward opening door, and the other end of the steel wire rope is connected with a power output shaft of the hoisting winch through the pulley block.

4. The throwing type fire-fighting emergency response system according to claim 3, wherein a door-in-place switch is mounted at the bottom of a door frame of the outward opening door, and a door-opening trigger block for triggering the door-in-place switch to act is mounted at the bottom of the inner side wall of the outward opening door; a door closing in-place switch is arranged at the top of the door frame of the outward opening door; a door closing trigger block for triggering the door to be opened in place and to be closed is arranged at the top of the inner side wall of the outward opening door; the door opening in-place switch is connected with a controller trigger terminal of the hoisting winch; the door closing in-place switch is connected with a controller trigger terminal of the hoisting winch.

5. A fire emergency response system of the throw type as claimed in claim 3, wherein a spring door opening assist assembly is mounted on top of the door frame of the out-opening door.

6. The fire emergency response system of claim 2, wherein the inner side wall of the outward opening door is provided with a plurality of parallel rollers, the axis of the rollers is perpendicular to the sliding direction of the battery pack, and guide strips are installed on two sides of the rollers.

7. The fire emergency response system of claim 6, wherein the guide strip is mounted on its inside with a sensor for detecting the position of the battery pack.

8. A fire emergency response system of the throw type according to claim 1, wherein the throw mechanism comprises:

one end of the emergency guide rail is positioned at the emergency outlet, and the other end of the emergency guide rail is positioned on a roller way in the battery replacement station;

a robot that grips the battery pack and places the battery pack on the pallet;

a travelling crane for driving the lifting appliance to move;

and the control terminal controls the working states of the roller way, the robot and the lifting appliance.

9. The throwing fire emergency response system of claim 8, wherein the roller table comprises a bracket and a power roller mounted on the bracket, and a plurality of sets of guide rollers and guide blocks are mounted on the bracket on both sides of the power roller.

10. The fire emergency response system of claim 9, wherein each set of guide rollers comprises two horizontally disposed rollers.

11. A fire emergency response system of the throw type as claimed in claim 9, wherein a second sensor is mounted on the carriage to detect the presence of the pallet.

12. A fire emergency reaction system of the throw type as claimed in claim 9, wherein a plurality of magnets for limiting the pallet are mounted on the bracket.

13. A throwing fire emergency response system of any one of claims 1 to 12, wherein the lower surface of the platform is provided with an elastomeric cushioning layer; the supporting plate is provided with a first sensor for detecting whether the battery is in place.

14. A throwing type fire-fighting emergency response method, characterized in that the following steps are carried out based on the throwing type fire-fighting emergency response system of claim 13:

s4, the target battery pack enters a fire pit along the slide assembly;

15. A fire emergency response method of the throw type according to claim 14, wherein the emergency exit is closed by:

the hoisting winch drives the free end of the outward opening door to rotate and rise by taking the door shaft as a fulcrum through the steel wire rope until the outward opening door and the emergency outlet are closed, the door closing trigger block triggers the door closing in-place switch to start, and the door closing in-place switch further triggers the hoisting winch to stop working.

16. A throwing fire emergency response method as recited in claim 14, wherein the emergency exit opening process is:

the spring door opening assisting assembly drives the outward opening door to move outwards, the hoisting winch drives the free end of the outward opening door to rotate by taking the door shaft as a fulcrum through the steel wire rope until the outward opening door is in lap joint with the fire pit, the door opening triggering block triggers the door opening in-place switch to start, and the door opening in-place switch further triggers the hoisting winch to stop working.

17. A throwing fire emergency response method as recited in claim 14, wherein the target battery pack is grabbed and transferred to a slide assembly, specifically:

step two, when the supporting plate is in place, the robot places the target battery pack on the supporting plate;

step four, when the battery is in place, starting a roller way, and transporting the supporting plate loaded with the target battery pack to the top of the outward opening door;